Container capable of being connected through pipes, fastening bolt of container and connecting and detaching method of container

Abstract

The invention discloses a container capable of being connected through pipes and a method for connecting and detaching fastening bolts and pipes of the container. The container capable of being connected through the pipe comprises a container body, a fastening bolt and a fastening nut, a bulging part is arranged on a connecting pipe of the container body, the bulging part is pressed into an outer pipe, so that the outer pipe is in a diameter expanding state, and the connecting pipe is connected with the outer pipe; the fastening bolt is provided with a bolt body and a bolt clamping pipe, and the bolt body can penetrate through the bulging part to be arranged on the connecting pipe in a penetrating and sleeving mode; the bolt clamping pipe is formed by splicing or embedding, can be sleeved on the connecting pipe in a penetrating manner, but cannot pass through the bulging part, so that the fastening bolt can be sleeved on the connecting pipe in a penetrating manner, and is clamped, pushed and pressed into the bulging part of the external pipe; the fastening bolt and the fastening nut are arranged on the two sides of the bulging part respectively, and the bulging part and the outer pipe on the outer layer of the bulging part are clamped and fixed through threaded connection, so that the container is fixedly connected with the outer pipe, and multiple sealing is formed. The container device is simple in structure and convenient to operate, and has a good market application prospect.

Description

Technical Field

[0001] The present invention belongs to the technical field of resin tube connection, and specifically relates to a tube-connectable container and its fastening bolts and connection and disassembly methods used in manufacturing processes in technical fields such as semiconductors, liquid crystal display panels, photovoltaics, biotechnology, pharmaceuticals, medical equipment, microelectronics, optics, magnetic disks, automotive industry, aviation and aerospace fields. Background Art

[0002] In the manufacturing process of technical fields such as semiconductors, liquid crystal display panels, photovoltaics, biotechnology, pharmaceuticals, medical equipment, microelectronics, optics, magnetic disks, automotive industry, aviation and aerospace, the fluids used are mostly corrosive chemical liquids, gases or some fluids with ultra-high purity requirements. Such fluids are usually stored and transported in resin containers and conduits. The corrosion resistance of resin containers and conduits can resist the erosion of chemical fluids. Their chemical inertness and resistance to reaction with chemicals can also meet the requirements of ultra-high purity and stability of the fluid.

[0003] Resin materials commonly used for this type of resin catheter or container include tetrafluoroethylene-perfluoroalkoxy vinyl ether copolymer (PFA, also known as perfluoroalkyl compound, soluble polytetrafluoroethylene), polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), tetrafluoroethylene-ethylene copolymer (ETFE), tetrafluoroethylene-hexafluoropropylene copolymer (FEP), polyvinyl chloride (PVC), polypropylene (PP), polyethylene (PE), polychlorotrifluoroethylene (PCTFE), polyetheretherketone (PEEK), bisphenol A type polysulfone (PSU), polyphenylene sulfone (PPSU) and polyethersulfone (PESU, PES), etc.

[0004] In actual use, the container for storing fluid needs to be connected to the delivery conduit to form a fluid passage to input or output the fluid into or out of the container; if the connection performance between the container and the conduit is not good enough or does not meet the standards, leakage is likely to occur at the connection and even cause a safety accident. Therefore, a container with excellent connection and sealing effects and stability is required to ensure the safety of the connection with the resin conduit. Summary of the invention

[0005] The present invention provides a container that can be connected with a pipe, a fastening bolt thereof, and a connection and disassembly method. The container that can be connected with a pipe can be connected with an external pipe for conveying fluid, so as to facilitate input or output of fluid into or out of the container. The container body of the container that can be connected with a pipe is connected with the external pipe to form a bulging connection; the fastening bolt and the fastening nut are respectively arranged on both sides of the connection, and the fastening bolt and the fastening nut are threadedly connected to clamp and push the connection, so as to fix the connection between the container body and the external pipe and ensure the stability of the connection, and at the same time, multiple seals are formed at the connection to ensure the high efficiency and stability of the seal.

[0006] In order to achieve the above object, a technical solution of the present invention is to provide a container that can be connected by pipes, and the container that can be connected by pipes comprises:

[0007] The container body has at least one connecting tube; each connecting tube is provided with a bulging portion, the bulging portion is used to press into the external tube, so that the external tube is in an expanded state, and the connecting tube is connected to the external tube;

[0008] A plurality of fastening bolts, which can be inserted into the connecting pipe and arranged on one side of the bulging part; a first clamping part is arranged inside the fastening bolts for clamping and pushing the bulging part of the external pipe;

[0009] A plurality of fastening nuts, which can be put on the outer tube and arranged on the other side of the bulging part; a second clamping part is arranged inside the fastening nut, which is used to clamp and push the bulging part of the outer tube;

[0010] The fastening nut is threadedly connected with the fastening bolt, and the two are respectively clamped and pushed into the bulging part of the external tube from both sides of the bulging part, so as to fix the connection between the container and the external tube and form a seal.

[0011] Optionally, the bulging portion is formed by the outer wall of the connecting pipe bulging outwards;

[0012] The bulging portion is located at the second end of the connecting pipe;

[0013] The end or side of each component close to the container body in the assembled state is the first end or the first side, and the end or the side away from the container body is the second end or the second side.

[0014] Optionally, the bulging portion has a first pressure-bearing surface and a second pressure-bearing surface;

[0015] Wherein, the first pressure-bearing surface is located at the first side of the bulging portion, and the second pressure-bearing surface is located at the second side of the bulging portion;

[0016] The first pressure-bearing surface and the second pressure-bearing surface are conical surfaces;

[0017] In the direction along the connecting pipe and pointing to the second end thereof, the outer diameter of the first pressure-bearing surface gradually increases, and the outer diameter of the second pressure-bearing surface gradually decreases.

[0018] Optionally, the bulging portion further has a third pressure-bearing surface;

[0019] The third pressure-bearing surface is located between the first pressure-bearing surface and the second pressure-bearing surface;

[0020] The third pressure-bearing surface is a cylindrical curved surface;

[0021] In the direction along the connecting pipe, the outer diameter of the third pressure-bearing surface remains unchanged.

[0022] Optionally, the maximum outer diameter of the bulging portion is the outer diameter of the third pressure-bearing surface; or,

[0023] The maximum outer diameter of the bulging portion is the maximum outer diameter of the first pressure-bearing surface or the second pressure-bearing surface.

[0024] Optionally, the bulge forms a seal with the outer tube at its maximum outer diameter.

[0025] Optionally, each connecting pipe further has a non-bulging portion;

[0026] The non-bulging portion is the portion of the connecting pipe other than the bulging portion.

[0027] Optionally, the non-bulging portion is located on a first side of the bulging portion, and the fastening bolt is sleeved on the non-bulging portion.

[0028] Optionally, the non-bulged portion adjoining the bulged portion is also pressed into the outer tube.

[0029] Optionally, the first clamping portion and the second clamping portion are circular ring structures.

[0030] Optionally, the first composite outer diameter R1≤the inner diameter of the first clamping portion<the second composite outer diameter R2; wherein,

[0031] The first composite outer diameter R1 is the outer diameter of the non-bulging portion pressed into the outer tube, and the second composite outer diameter R2 is the maximum outer diameter of the bulging portion pressed into the outer tube;

[0032] The first clamping part clamps and pushes the first pressure-bearing surface and the outer layer external tube thereof, so that a seal is formed between the first pressure-bearing surface and the external tube.

[0033] Optionally, the inner wall of the first clamping portion is a cylindrical curved surface, and the first clamping portion clamps and presses the first pressure-bearing surface and its outer layer external tube through its inner edge; or,

[0034] The inner wall of the first clamping part has a conical surface and can fit with the first pressure-bearing surface. The first clamping part clamps and presses the first pressure-bearing surface and its outer layer external tube through its conical inner wall.

[0035] Optionally, the outer diameter of the outer tube ≤ the inner diameter of the second clamping portion < the second composite outer diameter R2; wherein,

[0036] The second composite outer diameter R2 is the maximum outer diameter at the bulging portion pressed into the outer tube;

[0037] The second clamping part clamps and pushes the second pressure-bearing surface and the outer layer external tube thereof, so that a seal is formed between the second pressure-bearing surface and the external tube.

[0038] Optionally, the inner wall of the second clamping portion is a cylindrical curved surface, and the second clamping portion clamps and presses the second pressure-bearing surface and its outer layer external tube through its inner edge; or,

[0039] The inner wall of the second clamping part has a tapered surface and can fit with the second pressure-bearing surface. The second clamping part clamps and presses the second pressure-bearing surface and its outer layer external tube through its tapered inner wall.

[0040] Optionally, the end surface of the bulging portion is a conical surface;

[0041] In a direction along the connecting pipe and pointing to the second end thereof, the inner diameter of the port has an increasing trend.

[0042] Optionally, the diameters of the connecting pipes are the same or different;

[0043] The inner diameter of each connecting pipe is consistent with the inner diameter of the external pipe it is connected to.

[0044] Optionally, the container body further has a receiving cavity for storing fluid;

[0045] The connecting pipe is arranged on the accommodating cavity and communicated with the accommodating cavity.

[0046] Optionally, a valve body is provided in the accommodating chamber to control the connection or disconnection between the accommodating chamber and each connecting pipe.

[0047] Optionally, the outer wall of the fastening bolt is provided with a threaded structure to cooperate with the fastening nut for threaded connection.

[0048] Optionally, the fastening nut has a nut body;

[0049] The inner wall of the nut body is provided with a threaded structure for threaded connection with the fastening bolt.

[0050] Optionally, the second clamping portion is disposed inside the nut body;

[0051] The second clamping portion is located on a second side of the threaded structure of the nut body.

[0052] Optionally, the fastening bolt and the fastening nut further have a third positioning structure for indicating an appropriate fastening position of the fastening bolt and the fastening nut;

[0053] At a moderately tightened position, the tightening bolts and the tightening nuts secure the connection between the container and the external pipe, and form multiple seals at the connection between the connecting pipe and the external pipe.

[0054] Optionally, the third positioning structure includes a third positioning groove provided on the inner wall of the fastening nut, and a third positioning protrusion provided on the outer wall of the fastening bolt;

[0055] When the fastening bolt and the fastening nut are screwed to a moderately fastened position, the third positioning protrusion is inserted into the third positioning groove.

[0056] Optionally, the third positioning groove is an annular groove located on the first side of the thread structure of the fastening nut;

[0057] The third positioning protrusion is a continuous or discontinuous annular protrusion, and is located on the first side of the thread structure of the fastening bolt;

[0058] The shape and size of the third positioning groove match those of the third positioning protrusion.

[0059] Optionally, the ring body cross-sections of the third positioning groove and the third positioning protrusion are both arc-shaped.

[0060] Optionally, the tube-connectable container and the external tube are made of synthetic resin material.

[0061] Optionally, the number of the fastening bolts and the fastening nuts is determined according to the number of connecting pipes or bulging parts.

[0062] Another technical solution of the present invention is to provide a fastening bolt suitable for any of the above-mentioned pipe-connectable containers;

[0063] The fastening bolt can be inserted into the connecting pipe and arranged on one side of the bulging part; a first clamping part is arranged inside the fastening bolt for clamping and pushing the bulging part of the external pipe.

[0064] Optionally, each fastening bolt comprises a bolt body and a bolt clamp tube;

[0065] A bolt through hole is opened inside the bolt body, and the bolt clamp tube is placed in the bolt through hole; the bolt body can pass through the bulging part from the second end of the connecting tube and be inserted into the non-bulging part; the bolt clamp tube is a tube structure formed by splicing or chiming, which can be spliced ​​or chime around the non-bulging part or the external tube of its outer layer.

[0066] Optionally, the bolt clamp tube is formed by splicing or embedding two or more clamp tube walls;

[0067] Each clamping tube wall of the bolt clamping tube is an arc-shaped tube wall and has the same length;

[0068] The arc sizes of the clamping tube walls are the same or different.

[0069] Optionally, the bolt clamp pipe is formed by splicing a pipe structure with a pipe seam;

[0070] The pipe seam is arranged along the direction where the bolt clamps the pipe.

[0071] Optionally, the bolt through hole is arranged along the direction of the fastening bolt and penetrates the bolt body;

[0072] The diameter of the bolt through hole is greater than the maximum outer diameter of the bulging portion.

[0073] Optionally, the bolt body has a bolt shank and a bolt head;

[0074] The bolt head is located at the first end of the bolt rod;

[0075] The thread structure of the fastening bolt is arranged on the bolt rod.

[0076] Optionally, the bolt body further has a limiting portion;

[0077] The limiting portion is located inside the bolt through hole and is used to support the bolt clamping tube.

[0078] Optionally, the limiting portion at least has a limiting body and a center hole; wherein,

[0079] The limiting body is arranged on the inner wall of the bolt body along the circumferential direction; the center hole is located at the center position of the limiting body, and the diameter of the center hole is smaller than the diameter of the bolt through hole.

[0080] Optionally, at least the outer diameter of the bolt clamp tube is greater than the diameter of the central hole, so that the limiting body can bear the bolt clamp tube;

[0081] The diameter of the central hole is greater than the maximum outer diameter of the bulging portion, so that the bolt body can pass through the bulging portion. Optionally, the limiting portion is a circular ring structure;

[0082] The limiting body is a ring body of a circular ring structure, and the center hole is a ring hole of a circular ring structure;

[0083] The inner diameter of the bolt clamp tube is ≥ the diameter of the center hole.

[0084] Optionally, the entire end surface of the first end of the bolt clamp tube is located on the limiting body.

[0085] Optionally, the limiting portion further has a plurality of through holes, and the through holes are opened on the limiting body; the bolt clamp tube or each of its clamp tube walls corresponds to at least one through hole, and a portion of the end surface is located at the corresponding through hole.

[0086] Optionally, by setting marks at visible positions of the bolt body to specify the adjacent positions of each adjacent tube wall, at least one through hole is opened in the limiting body area between any two adjacent marks, and the tube clamping wall located in the limiting body area corresponds to at least one through hole.

[0087] Optionally, there are at least N through holes on the limiting body evenly distributed in the circumferential direction, so that the end face of the first end of any tube clamping wall is located at at least one through hole, and each tube clamping wall corresponds to at least one through hole; wherein N is a positive integer, N×min(L1)≥the circumference of the bolt clamping tube>(N-1)×min(L1), and min(L1) is the arc length of the tube clamping wall with the smallest arc length among all the tube clamping walls assembled to form the bolt clamping tube.

[0088] Optionally, the limiting portion is a circular ring structure;

[0089] The limiting body is a ring body of a circular ring structure, and the center hole is a ring hole of a circular ring structure;

[0090] The diameter of the center hole is greater than the inner diameter of the bolt clamp tube.

[0091] Optionally, the outer end surface of the first end of the bolt clamp tube is located on the limiting body, and the inner end surface is located in the center hole.

[0092] Optionally, the limiting portion is formed by a plurality of convex teeth distributed along the circumferential direction on the inner wall of the bolt body; the limiting body is a plurality of convex teeth; the central hole is a hole surrounded by a plurality of convex teeth distributed along the circumferential direction; the limiting portion also has a gap, which is a space formed between adjacent convex teeth;

[0093] The inner diameter of the bolt clamp tube is ≥ the diameter of the center hole.

[0094] Optionally, the outer end surface and the inner end surface of the first end of the bolt clamp tube are both located on the limiting body. Optionally, when the bolt clamp tube is formed by splicing a tube structure with a tube gap, part of its end surface is located in the gap.

[0095] Optionally, when the bolt clamp is formed by splicing or embedding two or more clamp walls, the arc length of any gap is less than the arc length of any clamp wall among all the clamp walls forming the bolt clamp, so that each clamp wall has at least one convex tooth to support it.

[0096] Optionally, the arc length of any convex tooth is less than the arc length of any tube clamping wall among all the tube clamping walls forming the bolt tube clamping, so that a portion of the end surface of the first end of each tube clamping wall is located in the gap.

[0097] Optionally, the limiting portion is formed by a plurality of convex teeth distributed along the circumferential direction on the inner wall of the bolt body; the limiting body is a plurality of convex teeth; the central hole is a hole surrounded by a plurality of convex teeth distributed along the circumferential direction; the limiting portion also has a gap, which is a space formed between adjacent convex teeth;

[0098] The diameter of the center hole is greater than the inner diameter of the bolt clamp tube.

[0099] Optionally, the outer end surface of the first end of the bolt clamp tube is located on the limiting body, and the inner end surface is located in the center hole.

[0100] Optionally, when the bolt clamp tube is formed by splicing a tube structure with a tube gap, a portion of the outer end surface of the first end is still located in the gap.

[0101] Optionally, when the bolt clamp is formed by splicing or embedding two or more clamp walls, the arc length of any gap is less than the arc length of any clamp wall among all the clamp walls forming the bolt clamp, so that each clamp wall has at least one convex tooth to support it.

[0102] Optionally, the arc length of the convex teeth is ≥ the arc length of the clamping tube wall; or,

[0103] If the arc length of the convex teeth is less than the arc length of the tube clamping wall, the tube clamping wall and the outer end surface of the first end thereof still have a part of the end surface located in the gap.

[0104] Optionally, the length of the bolt clamp tube is ≤ the maximum length of the non-bulging portion between the bolt body sleeved on the non-bulging portion and the bulging portion; and,

[0105] The length of the bolt clamping tube is equal to the distance from the limiting portion to the second end of the bolt body.

[0106] Optionally, each fastening bolt may include two or even more bolt clamp tubes;

[0107] The length of each bolt clamp tube is ≤ the maximum length of the non-bulging part between the bolt body and the bulging part that is inserted into the non-bulging part; and,

[0108] The sum of the tube lengths of the bolt clamping tubes is equal to the distance from the limiting portion to the second end of the bolt body.

[0109] Optionally, the limiting portion is moved or extended toward the second end of the bolt body to shorten the distance from the limiting portion to the second end of the bolt body.

[0110] Optionally, the first composite outer diameter R1≤the inner diameter of the first clamping portion<the second composite outer diameter R2; wherein the first composite outer diameter R1 is the outer diameter of the non-bulging portion pressed into the external tube, and the second composite outer diameter R2 is the maximum outer diameter of the bulging portion pressed into the external tube;

[0111] The first clamping part clamps and pushes the first pressure-bearing surface and the outer layer external tube thereof, so that a seal is formed between the first pressure-bearing surface and the external tube.

[0112] Optionally, the inner wall of the first clamping portion is a cylindrical curved surface, and the first clamping portion clamps and presses the first pressure-bearing surface and its outer layer external tube through its inner edge; or,

[0113] The inner wall of the first clamping part has a conical surface and can fit with the first pressure-bearing surface. The first clamping part clamps and presses the first pressure-bearing surface and its outer layer external tube through its conical inner wall.

[0114] Optionally, the outer diameter of the bolt clamp tube is less than or equal to the diameter of the bolt through hole;

[0115] The inner diameter of the bolt clamp tube is ≥ the first composite outer diameter R1, wherein the first composite outer diameter R1 is the outer diameter of the non-bulging portion of the pressed outer tube.

[0116] Optionally, when the inner diameter of the bolt clamping tube is less than the second composite outer diameter R2, the first clamping portion may be the second end of the bolt clamping tube; wherein the second composite outer diameter R2 is the maximum outer diameter of the bulging portion pressed into the outer tube.

[0117] Optionally, the first clamping part is a circular ring structure arranged in the bolt clamping tube; the inner diameter of the circular ring structure is less than the second composite outer diameter R2, and the circular ring structure is arranged along the circumferential direction on the inner wall of the second end of the bolt clamping tube; wherein the second composite outer diameter R2 is the maximum outer diameter of the bulging part pressed into the external tube. Optionally, when the outer diameter of the bolt clamping tube is equal to the diameter of the bolt through hole, the bolt body tightens the bolt clamping tube formed by the assembly through its inner wall, so that the bolt clamping tube maintains the tube structure state;

[0118] When the outer diameter of the bolt clamp tube is less than the hole diameter of the bolt through hole, a clamping structure is provided on the outer wall of the bolt clamp tube, and the outer diameter of the clamping structure is equal to the hole diameter of the bolt through hole. The bolt body clamps the clamping structure through its inner wall to keep the bolt clamp tube in a tube structure state.

[0119] Optionally, the tight hoop structure is a complete circular ring structure; or,

[0120] The clamping structure is an incomplete circular ring structure and is composed of a plurality of discontinuous circular ring segments. Optionally, the clamping structure is arranged at the second end of the bolt clamping tube.

[0121] Optionally, the bolt clamp has a first positioning structure for positioning two adjacent clamp walls so that both ends of the two adjacent clamp walls are aligned;

[0122] The first positioning structure includes a positioning pin arranged on a side surface of an adjacent tube clamping wall, and a positioning groove arranged on a side surface of another adjacent tube clamping wall.

[0123] Optionally, at the junction of the bolt clamp tubes, the location, quantity and shape of the positioning pins on the side of one adjacent clamp tube wall match the location, quantity and shape of the positioning grooves on the side of another adjacent clamp tube wall.

[0124] Optionally, the fastening bolt further has a second positioning structure;

[0125] The second positioning structure cooperates with the limiting part to clamp the bolt clamping tube in the direction of the connecting tube, so that the bolt clamping tube and the bolt body move synchronously; at the same time, the bolt body can also tighten the bolt clamping tube through the second positioning structure.

[0126] Optionally, the second positioning structure includes a second positioning groove disposed on the inner wall of the second end of the bolt body, and a second positioning protrusion disposed on the outer wall of the second end of the bolt clamping tube;

[0127] When the first end of the bolt body reaches the limiting portion, the second positioning protrusion is located in the second positioning groove. Optionally, the second positioning groove is an annular groove;

[0128] The second positioning protrusion is a continuous or discontinuous annular protrusion;

[0129] The shape and size of the second positioning groove match those of the second positioning protrusion, and the maximum outer diameter of the second positioning protrusion is equal to the maximum inner diameter of the second positioning groove.

[0130] Optionally, the second positioning groove and the second positioning protrusion both have circular arc cross-sections.

[0131] Optionally, each clamping tube wall is provided with a concave-convex structure;

[0132] At each adjacent part of the bolt clamp, the concave-convex structures of adjacent clamp walls fit together to form a complete tube wall; at the same time, the concave-convex structures of adjacent clamp walls also bite or hook each other to form a connection between adjacent clamp walls and keep the bolt clamp in a tube structure state.

[0133] Optionally, at each adjacent part of the bolt clamping tube, the concavo-convex structure of one adjacent clamping tube wall is a groove opened on the side, the groove extends along the direction where the bolt clamping tube is located, and its extension length is equal to the length of the bolt clamping tube; the concavo-convex structure of another adjacent clamping tube wall is a convex block arranged on the side, the convex block extends along the direction where the bolt clamping tube is located, and its extension length is equal to the length of the bolt clamping tube; or,

[0134] The concave-convex structure of another adjacent tube clamping wall is a plurality of protrusions arranged on the side surface, the plurality of protrusions are distributed along the direction where the bolt clamps the tube, and a protrusion is arranged at the second end of the bolt clamping tube, each protrusion extends along the direction where the bolt clamps the tube, and its extension length is less than the length of the bolt clamping tube.

[0135] Optionally, at each adjacent part of the bolt clamping tube, the concave-convex structure of an adjacent clamping tube wall is a plurality of grooves opened on the side surface, the plurality of grooves are distributed along the direction where the bolt clamping tube is located, and each groove extends along the direction where the tube diameter is located and penetrates the tube wall;

[0136] The concave-convex structure of another adjacent pipe clamping wall is a plurality of protrusions arranged on the side surface, the plurality of protrusions are distributed along the direction where the bolt clamps the pipe, each protrusion extends along the direction where the pipe diameter is located, and its extension length is equal to the wall thickness of the pipe.

[0137] Optionally, at each adjacent position of the bolt clamp tube, the upper protrusion of an adjacent clamp tube wall is embedded in the groove of another adjacent clamp tube wall;

[0138] The shape and size of the protrusion match the groove in which it is embedded, and a complete tube wall is formed at the embedded position.

[0139] Optionally, at each adjacent portion of the bolt clamp tube, the number and arrangement positions of the protrusions on the side surface of an adjacent clamp tube wall correspond to the grooves on the side surface of another adjacent clamp tube wall.

[0140] Optionally, the protrusion is formed by protruding from its side surface toward the outside of the tube wall along the circumferential direction of the tube wall, and has a head and a tail; the part of the protrusion connected to the side surface is the tail, and the rest of the part is the head, and at least part of the head of the protrusion is larger than the tail;

[0141] The groove is formed by being sunken from its side surface into the tube wall along the circumferential direction of the tube wall, and has a groove opening and a groove bottom; the groove has a portion close to the side surface as the groove opening, and the remaining portion as the groove bottom, and at least a portion of the groove bottom of the groove is larger than the groove opening;

[0142] When the protrusion is embedded in the groove, its head is located at the groove bottom and its tail is located at the notch. The groove clamps the head of the protrusion through the notch, so that the protrusion and the groove are engaged with each other and adjacent clamping walls are connected at the adjacent parts.

[0143] Optionally, the groove further has a port, and the protrusion is embedded in the groove from the port of the groove. Optionally, the shape of the protrusion and the groove engaged therewith can be any one of a convex shape, an arc shape, a trapezoid, a pentagon, a hexagon, a deformation of a trapezoid, a racket shape, a cat's paw shape, and a Christmas tree shape. Optionally, grooves are provided on both sides of the clamp wall as a concave-convex structure; or, protrusions are provided on both sides of the clamp wall as a concave-convex structure; or,

[0144] A groove is provided on one side surface of the tube clamping wall as a concave-convex structure, and a convex block is provided on the other side surface as a concave-convex structure.

[0145] Optionally, at each adjacent part of the bolt clamp tube, the concave-convex structure of an adjacent clamp tube wall is a groove opened on the inner wall, and the groove is the first groove, which extends along the direction of the bolt clamp tube, and the extension length is equal to the length of the bolt clamp tube;

[0146] The concave-convex structure of the other adjacent clamping wall is a groove opened on the outer wall, and the groove is the second groove, which extends along the direction of the bolt clamping tube, and the extension length is equal to the length of the bolt clamping tube. Optionally, at each adjacent point of the bolt clamping tube, the outer side wall of an adjacent clamping wall is embedded in the groove of another adjacent clamping wall; wherein,

[0147] The outer side wall of the first groove has a shape and size that matches the second groove in which it is embedded, and forms a complete tube wall at the embedded position;

[0148] The shape and size of the outer side wall of the second groove match the first groove in which it is embedded, and a complete tube wall is formed at the embedded position.

[0149] Optionally, the first groove is formed by being recessed from the inner wall of the clamping tube wall toward the outer wall along the tube diameter direction, and has a groove opening and a groove bottom; the first groove has a portion close to the inner wall as the groove opening, and the remaining portion as the groove bottom;

[0150] The second groove is formed by being recessed from the outer wall of the clamping tube wall toward the inner wall along the tube diameter direction, and has a groove opening and a groove bottom; the second groove has a portion close to the outer wall as the groove opening and the remaining portion as the groove bottom.

[0151] Optionally, the first groove or the second groove further has a port;

[0152] The outer side wall of the first groove is embedded in the second groove from the end of the second groove;

[0153] The outer side wall of the second groove is embedded in the first groove from the end of the first groove.

[0154] Optionally, the shape of each outer side wall and the groove engaged therewith can be any one of a rectangle, a convex shape, an arc shape, a trapezoid, a pentagon, a hexagon, a deformation of a trapezoid, a racket shape, a cat's paw shape, and a Christmas tree shape.

[0155] Optionally, when the shape of each outer side wall and the groove engaged therewith is rectangular, each outer side wall can also be embedded in the groove from the notch.

[0156] Optionally, first grooves are provided on the inner walls on both sides of the tube clamping wall as the concave-convex structure; or, second grooves are provided on the outer walls on both sides of the tube clamping wall as the concave-convex structure; or,

[0157] The inner wall of one side of the tube clamping wall is provided with a first groove as a concave-convex structure, and the outer wall of the other side is provided with a second groove as a concave-convex structure.

[0158] Optionally, each tube clamping wall of the bolt tube clamp itself is a tube wall structure in the shape of a U-shaped tube, and the U-shaped tube wall structure is a concave-convex structure, and adjacent tube clamping walls in the bolt tube clamp are arranged in opposite directions.

[0159] Optionally, each clamping tube wall has a base wall, a main wall, a side wall and a groove;

[0160] On one side of the base wall, a main wall is arranged in the middle and side walls are arranged at both ends. Grooves are formed between the main wall and the side walls on both sides thereof. The sum of the lengths of the base wall and the main wall is the length of the bolt clamp tube.

[0161] Optionally, at each adjacent portion of the bolt clamp tube, the side wall of one adjacent clamp tube wall is embedded in the groove of another adjacent clamp tube wall;

[0162] The shape and size of each side wall matches the groove in which it is embedded, and a complete tube wall is formed at the embedded position.

[0163] Optionally, at each end of the bolt clamp tube, the base wall of an adjacent clamp tube wall is spliced ​​with the main wall of another adjacent clamp tube wall to form a complete tube wall at the splicing location;

[0164] At the same time, the sum of the arc lengths of the base walls and the main walls at the end is equal to the circumference of the bolt clamping tube.

[0165] Another technical solution of the present invention is to provide a pipe connection method, which is applicable to any of the above-mentioned pipe-connectable containers, and comprises the following steps:

[0166] The bolt body passes from the second end of the connecting pipe, through the bulging portion, and is sleeved on the non-bulging portion;

[0167] The fastening nut is sleeved on the external tube;

[0168] The bulging portion and the non-bulging portion connected thereto are pressed into the external tube, the external tube is in an expanded state, a connection is formed between the connecting tube and the external tube, and the fastening nut is located on the second side of the bulging portion;

[0169] The bolt clamp tube is installed in the bolt body to form a fastening bolt; the fastening bolt is sleeved on the non-bulging part and is located on the first side of the bulging part;

[0170] The fastening bolts and fastening nuts on both sides of the bulging part are screwed tight, and the fastening bolts and fastening nuts apply a pushing force in opposite directions to the bulging part pressed into the external tube, thereby fixing the connection between the container and the external tube and forming multiple seals at the connection.

[0171] Optionally, at the non-bulging portion between the bolt body and the bulging portion, each clamping tube wall surrounds the non-bulging portion or an outer tube of its outer layer to form a bolt clamping tube, and the bolt clamping tube is installed into the bolt through hole along the non-bulging portion to form a fastening bolt; or,

[0172] At the non-bulging portion between the bolt body and the bulging portion, each clamping tube wall is respectively installed into the bolt body along the non-bulging portion, and is assembled in the bolt through hole to form a bolt clamping tube and a fastening bolt.

[0173] Optionally, at the non-bulging portion between the bolt body and the bulging portion, the tube seam of the bolt clamping tube is stretched open, the bolt clamping tube is wrapped around the non-bulging portion or the outer tube of its outer layer, and the bolt clamping tube is installed into the bolt through hole along the non-bulging portion to form a tightening bolt.

[0174] Optionally, tighten the fastening bolts and fastening nuts to a moderately tight position.

[0175] Another technical solution of the present invention is to provide a tube disassembly method, which is applicable to any of the above-mentioned tube-connectable containers, comprising the following steps:

[0176] The fastening bolts and fastening nuts are screwed loose;

[0177] The connecting pipe is withdrawn from the external pipe and is disassembled from the external pipe;

[0178] The fastening bolt is separated from the bulging portion along the non-bulging portion, and the bolt clamping tube or the clamping tube wall thereof is removed from the bolt through hole;

[0179] The bolt body is removed from the second end of the connecting pipe through the bulging portion;

[0180] Remove the retaining nut from the outer tube.

[0181] Optionally, the bolt clamp tube is pushed out of the bolt body, the adjacent clamp tube walls are disassembled, and the bolt clamp tube is removed from the non-bulging portion; or,

[0182] Push the clamp tube wall out of the bolt body and remove it from the non-bulging part.

[0183] Optionally, the bolt clamp tube is pushed out of the bolt body, the tube slit of the bolt clamp tube is stretched open, and the bolt clamp tube is removed from the non-bulging portion.

[0184] Compared with the prior art, the present invention provides a pipe-connectable container and a fastening bolt and pipe connection and disassembly method thereof, which has the following beneficial effects:

[0185] (1) The tube-connectable container provided by the present invention has a structure for connecting with a tube, and can be directly connected with an external tube, so that fluid can be easily input or output into or out of the accommodating cavity. The present invention provides a bulging portion on the connecting tube of the container body, and forms a connection with the connecting tube by pressing the bulging portion into the external tube so that the external tube is in an expanded state, and fastening bolts and fastening nuts are provided on both sides of the bulging portion pressed into the external tube, and the connection between the connecting tube and the external tube is fixed by threaded connection of the two, thereby ensuring the stability of the connection.

[0186] (2) The present invention disassembles the fastening bolt into two parts, a bolt body and a bolt clamping tube, and the bolt clamping tube is formed by splicing or mosaicking, so that the fastening bolt can be set on the first side of the bulging portion pressed into the external tube, and can cooperate with the fastening nut to clamp and push the bulging portion pressed into the external tube, thereby solving the problem that the ordinary fastening bolt cannot simultaneously achieve both the placement on the first side of the bulging portion and the clamping and pushing of the bulging portion pressed into the external tube.

[0187] (3) The tube-connectable container provided by the present invention can form a seal with the external tube at the first pressure-bearing surface, the second pressure-bearing surface and the third pressure-bearing surface of the bulged part, respectively, or in other words, the present invention can form a triple seal at each connection point. The connection between the tube-connectable container provided by the present invention and the external tube has an efficient and stable sealing performance.

[0188] (4) The tube-connectable container provided by the present invention has simple components, is easy to produce and process, has low production cost, and is convenient to connect and disassemble with an external tube. The tube-connectable container provided by the present invention has good market application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0189] Figure 1 It is a half-sectioned and exploded schematic diagram of a container connectable to pipes in Embodiment 1 of the present invention;

[0190] Figure 2 A half-section, assembly schematic diagram and a partial enlarged diagram of a container connectable to pipes in Embodiment 1 of the present invention;

[0191] Figure 3 A schematic diagram of the connection between the container body and the external tube in the first embodiment of the present invention and a partial enlarged diagram thereof;

[0192] Figure 4 Schematic diagram of the interaction between the bulging portion and the non-bulging portion and the external tube in the first embodiment of the present invention;

[0193] Figure 5 This is a schematic diagram of the structure of the fastening bolt in the first embodiment of the present invention;

[0194] Figure 6 It is a half-section schematic diagram of the bolt body in the first embodiment of the present invention;

[0195] Figure 7 A half-section schematic diagram of a fastening bolt and a partial enlarged diagram of the end surface of the bolt clamping the tube in the first embodiment of the present invention;

[0196] Figure 8 It is a schematic diagram of the state in which the pipe clamping walls are spliced ​​together to form a bolt pipe clamping in the first embodiment of the present invention;

[0197] Fig. 9 It is a half-section schematic diagram of the fastening nut in the first embodiment of the present invention;

[0198] Fig.10 It is a half-section schematic diagram of a two-way container body in the second embodiment of the present invention;

[0199] Fig.11 It is a half-section schematic diagram of a four-way container body in the second embodiment of the present invention;

[0200] Fig.12It is a half-section schematic diagram of the container body in the third embodiment of the present invention;

[0201] Fig.13 A half-section schematic diagram of a fastening bolt and a partial enlarged diagram of an end surface of a clamping tube wall in a fourth embodiment of the present invention;

[0202] Fig.14 It is an assembly cross-sectional view of the bolt clamp tube in the bolt body and a top view of its limiting portion and a top view of the limiting portion bearing the bolt clamp tube in the fifth embodiment of the present invention;

[0203] Fig.15 Schematic diagram of the positional relationship between the tube clamping wall and the limiting portion in the fifth embodiment of the present invention;

[0204] Fig.16 It is a schematic diagram of the assembly of the bolt clamp tube in the bolt body in the sixth embodiment of the present invention, a top view of its limiting portion, and a top view of the limiting portion bearing the bolt body;

[0205] Fig.17 It is a schematic diagram of assembling the tube clamping wall in the bolt body in the sixth embodiment of the present invention;

[0206] Fig.18 Schematic diagram of the positional relationship between the tube clamping wall and the limiting portion in the sixth embodiment of the present invention;

[0207] Fig.19 It is an inverted assembly diagram of the bolt clamp tube in the bolt body in the seventh embodiment of the present invention, a bottom view of its limiting portion, and a bottom view of the limiting portion bearing the bolt body;

[0208] Fig. 20 Schematic diagram of the assembly position relationship between the bolt clamp tube and the bolt body in the eighth embodiment of the present invention;

[0209] Fig.21 Schematic diagram of the assembly position relationship between the bolt clamp tube and the bolt body in the ninth embodiment of the present invention;

[0210] Fig. 22 This is a schematic structural diagram of a bolted pipe clamp with a pipe gap in a tenth embodiment of the present invention;

[0211] Fig.23 It is a schematic diagram of a state in which two clamping tube walls with the same arc size are assembled to form a bolt clamp in the eleventh embodiment of the present invention;

[0212] Fig.24 It is a schematic diagram of the state where three clamping tube walls are assembled to form a bolt clamp in the twelfth embodiment of the present invention;

[0213] Fig.25 A schematic diagram showing the comparison of the splicing state of the clamping tube wall in the thirteenth embodiment of the present invention;

[0214] Fig.26Schematic diagram showing the comparison of the states of the bolt clamping pipe clamping and pushing the bulging portion in the fourteenth embodiment of the present invention;

[0215] Fig. 27 It is a comparative schematic diagram of the state of clamping and pushing the bulging portion of the fastening nut in the fourteenth embodiment of the present invention;

[0216] Fig.28 This is a schematic diagram of the state of the bolt clamping the pipe and pushing the bulging portion in the fifteenth embodiment of the present invention;

[0217] Fig.29 This is a schematic diagram of the distribution of each fastening structure in Embodiment 16 of the present invention;

[0218] Fig.30 It is a schematic diagram of the assembly of the bolt clamp tube and the bolt body in the sixteenth embodiment of the present invention;

[0219] Fig.31 A half-section schematic diagram of a bolt body and a bolt clamp tube and a schematic diagram of their assembly in Embodiment 17 of the present invention;

[0220] Fig.32 It is a schematic diagram of the state in which the tube clamping walls are engaged to form a bolted tube clamp in the eighteenth embodiment of the present invention;

[0221] Fig.33 It is a schematic diagram of the end of the bolt clamping tube formed by interlocking in the eighteenth embodiment of the present invention;

[0222] Fig.34 This is a schematic diagram of the structure of the tube clamping wall in the eighteenth embodiment of the present invention;

[0223] Fig.35 It is a schematic diagram of the state in which the tube clamping walls are engaged to form a bolted tube clamp in the nineteenth embodiment of the present invention;

[0224] Fig.36 A schematic diagram of the outer wall of the bolt clamp tube formed by interlocking in the nineteenth embodiment of the present invention;

[0225] Fig.37 A schematic diagram of the outer wall of the bolt clamp tube formed by interlocking in Example 20 of the present invention;

[0226] Fig.38 The structure of the tube clamping wall in the twentyth embodiment of the present invention is schematically shown;

[0227] Fig.39 It is a schematic diagram of the end of the bolt clamping tube formed by interlocking in the twentyth embodiment of the present invention;

[0228] Fig.40 It is a schematic diagram of a state in which the tube clamping walls are engaged to form a bolted tube clamp in Embodiment 21 of the present invention;

[0229] Fig.41It is a schematic diagram of the assembly of the bolt body and the fastening nut in Example 22 of the present invention. DETAILED DESCRIPTION

[0230] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments; the features of each embodiment can be combined or replaced with each other, unless explicitly excluded or should be excluded according to the context. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0231] Embodiment 1

[0232] like Figure 1 , 2 As shown, this embodiment provides a tube-connectable container 100, which can be connected to an external tube for conveying fluid, and is convenient for inputting or outputting fluid into or out of the container. The tube-connectable container 100 includes a container body 110, a fastening bolt, and a fastening nut 140; wherein the fastening bolt further includes a bolt body 120 and a bolt clamp tube 130. In the tube-connectable container 100, the container body 110 is connected to the external tube 150, forming a bulging connection; the fastening bolt and the fastening nut 140 are respectively arranged on both sides of the connection, and the fastening bolt and the fastening nut 140 are threadedly connected to clamp and push the connection, thereby fixing the connection between the container body and the external tube and forming a seal. The external tube 150 is a pipeline made of resin material for conveying fluid. The container body 110 will be first introduced in detail below.

[0233] In this embodiment, the container body 110 has a receiving cavity 111 and a connecting pipe. Figure 3 As shown; the connecting tube is arranged on the accommodating chamber 111 and can be connected to the accommodating chamber 111; the connecting tube is used to connect the external tube, connect the accommodating chamber 111 with the external tube (or the external tube with the equipment), form a fluid passage, and input or output fluid to the accommodating chamber 111; the inner diameter of each connecting tube can be consistent with the inner diameter of the external tube 150 connected thereto. The various tube diameters mentioned in this article, including inner diameter and outer diameter, are all radii.

[0234] Each connecting pipe comprises a bulging portion 112 and a non-bulging portion 113; wherein the bulging portion 112 is formed by the outer wall of the connecting pipe bulging outward, and the bulging portion 112 is located at the second end of the connecting pipe; the non-bulging portion 113 is the portion of the connecting pipe other than the bulging portion, and the non-bulging portion 113 is located at the first side of the bulging portion 112, such as Figure 3Herein, each component or part has an end or side close to the container body (or the accommodating cavity) in the assembled state as the first end or the first side, and an end or side away from the container body (or the accommodating cavity) as the second end or the second side.

[0235] As mentioned above, the inner diameter of each connecting tube is consistent with the inner diameter of the external tube 150 to which it is connected, that is, the inner diameter of the connecting tube = the inner diameter of the external tube 150, then the outer diameter of the connecting tube (including the outer diameter of the bulging part 112 and the outer diameter of the non-bulging part 113) > the inner diameter of the external tube 150.

[0236] In the present invention, the outer diameter of the bulging portion 112 is greater than the inner diameter of the external tube 150. Therefore, when the bulging portion 112 of the connecting tube is pressed into the external tube 150, the bulging portion 112 will expand the external tube 150, so that the external tube 150 is in an expanded state, and the outer wall of the bulging portion 112 is closely fitted with the inner wall of the external tube 150. The bulging portion 112 will apply expansion pressure to the external tube 150, and the external tube 150 will apply tightening pressure to the bulging portion 112. Figure 4 As shown, a certain friction force is formed between the inner wall of the external tube 150 and the outer wall of the bulging portion 112 (or the connecting tube), so that the external tube 150 is connected to the connecting tube and is not easily loosened.

[0237] Similarly, the outer diameter of the non-bulging portion 113 is greater than the inner diameter of the external tube 150. Therefore, when the non-bulging portion of the connecting tube is pressed into the external tube, the non-bulging portion pressed into the external tube will expand the external tube 150, so that the external tube 150 is in an expanded state. The outer wall of the non-bulging portion pressed into the external tube is tightly fitted with the inner wall of the external tube 150. The non-bulging portion will apply expansion pressure to the external tube 150, and the external tube 150 will apply tightening pressure to the non-bulging portion. Figure 4 As shown, a certain friction force is also formed between the inner wall of the outer tube 150 and the outer wall of the non-bulging part (or the connecting tube).

[0238] The bulging portion 112 is located at the second end of the connecting tube (or the non-bulging portion 113), so when the connecting tube is connected to the external tube 150, only the bulging portion 112 can be pressed into the external tube 150, or the bulging portion 112 and the non-bulging portion connected thereto can be pressed into the external tube 150. This document does not limit this, nor does it limit it to other related examples, and can be designed according to actual application conditions. The bulging portion pressed into the external tube connects the connecting tube (or the container body 110) to the external tube, forming a bulging connection.

[0239] In this embodiment, the bulging portion 112 and the non-bulging portion connected thereto are pressed into the outer tube 150. Figure 4As shown, in addition to the friction force formed between the outer wall of the bulging part and the inner wall of the external tube, there is also friction force formed between the non-bulging part pressed into the external tube and its outer wall and the inner wall of the external tube; compared with just pressing the bulging part 112 into the external tube, the connection between the connecting tube and the external tube in this embodiment is enhanced, and to a certain extent, the phenomenon that the connecting tube easily slips out of the external tube can be avoided, and it has a better connection effect in actual use.

[0240] In this embodiment, the outer wall of the bulging portion 112 can be divided into a first pressure-bearing surface 112a, a second pressure-bearing surface 112b and a third pressure-bearing surface 112c. Figure 3 wherein the first pressure-bearing surface 112a is located on the first side of the bulging portion, and under the pushing force of the fastening bolts, it can form a seal with the external tube at I, as shown Figure 2 As shown; the second pressure-bearing surface 112b is located on the second side of the bulge, and under the pushing force of the fastening nut, it can form a sealing point II with the external tube; the third pressure-bearing surface 112c is located between the first pressure-bearing surface 112a and the second pressure-bearing surface 112b, connecting the first pressure-bearing surface 112a and the second pressure-bearing surface 112b, and it can form a sealing point III with the external tube.

[0241] The first pressure-bearing surface 112a and the second pressure-bearing surface 112b are both conical surfaces, and their outer diameters change gradually. Specifically, in the direction along the connecting pipe and pointing to the second end thereof, the outer diameter of the first pressure-bearing surface 112a starts from the outer diameter r of the non-bulging part and gradually increases to the maximum outer diameter R of the bulging part, and the outer diameter of the second pressure-bearing surface 112b starts from the maximum outer diameter R of the bulging part and gradually decreases, but it is larger than the inner diameter of the connecting pipe; wherein the maximum outer diameter R of the bulging part>the outer diameter r of the non-bulging part, such as Figure 3 shown.

[0242] The third pressure-bearing surface 112c is a cylindrical curved surface, and the outer diameter of the third pressure-bearing surface 112c remains unchanged in the direction along the connecting tube; the outer diameter of the third pressure-bearing surface 112c is the maximum outer diameter R of the bulging portion; when the bulging portion 112 is pressed into the external tube 150, the expansion pressure on the external tube 150 at the third pressure-bearing surface 112c, which is the maximum outer diameter of the bulging portion 112, is the largest, and the clamping pressure of the external tube it is subjected to is also the largest, and the fit between the external tube 150 and the third pressure-bearing surface 112c is the tightest, so the third pressure-bearing surface 112c can form a seal III with the external tube. The bulging portion 112 in this embodiment can form a seal with the external tube 150 at the first pressure-bearing surface 112a, the second pressure-bearing surface 112b and the third pressure-bearing surface 112c, respectively, or in other words, the connection between each connecting tube and its external tube 150 can form a triple seal, so the tube-connectable container in the present invention has a strong and stable sealing performance. The sealing of the first pressure-bearing surface 112a and the second pressure-bearing surface 112b will be described in detail in the following text.

[0243] In the present invention, the maximum outer diameter R value of the bulging portion can be designed according to the inner diameter of the external tube to be connected. It is required that while the bulging portion can be pressed into the external tube, the bulging portion has a certain expansion pressure on the external tube, so that a connection is formed between the connecting tube and the external tube and a seal can be formed between the third pressure-bearing surface and the external tube. In addition, the degree of deformation damage to the external tube should be controlled at a low level.

[0244] The bulging portion 112 is provided at the second end of the connecting tube (or the non-bulging portion 113). Therefore, when the connecting tube is connected to the external tube 150, the bulging portion 112, specifically, the second end port of the bulging portion 112 (or the second pressure-bearing surface 112b) is first pressed into the external tube 150. In order to prevent the port from shrinking and deforming due to the impact of the opposite fluid in the external tube 150, separating from the inner wall of the external tube, and hindering the flow of the fluid, the present invention designs the end face 112d of the port as a conical surface. Along the connecting pipe and in the direction pointing to its second end, the inner diameter of the port tends to expand; in this way, the inner diameter of the pipe becomes larger and the flow rate slows down at the second end port of the bulging part, and the impact force of the fluid is weakened. More importantly, the end face 112d of the conical surface has a certain inclination, and the impact force of the opposite fluid will push the end face 112d, causing the end face 112d to expand outward and the second pressure-bearing surface 112b to be close to the inner wall of the external pipe, without the port shrinking and deforming, separating from the inner wall of the external pipe, and hindering the flow of fluid.

[0245] The connection between the above-mentioned connecting tube and the external tube is completely maintained by the friction between the two. This connection is not reliable. When the fluid flow rate is large or other large external forces act, the two may be separated, not to mention sealing. In order to make the connection between the connecting tube and the external tube firm and stable, the present invention respectively arranges fastening bolts and fastening nuts on both sides of the bulging part pressed into the external tube. When the fastening bolts and fastening nuts are screwed, the two will clamp and push the bulging part pressed into the external tube from both sides of the bulging part (or the connection). The bulging part and the outer tube of its outer layer are firmly pressed together and cannot slip off from the fastening bolts or fastening nuts, thereby fixing the connection between the connecting tube and the external tube and ensuring the stability of the connection. At the same time, multiple seals are formed at the connection between the connecting tube and the external tube to ensure the high efficiency and stability of the seal.

[0246] In the present invention, a pair of fastening bolts and fastening nuts (i.e., a fastening bolt and a fastening nut matched therewith) are required at the connection between each connecting tube and the external tube or at the bulging portion pressed into the external tube to clamp and push the bulging portion pressed into the external tube to fix the connection between the connecting tube and the external tube. Therefore, the number of fastening bolts and fastening nuts provided in the tube connecting device can be determined according to the number of connecting tubes or bulging portions. In this embodiment, the connecting body 110 has a connecting tube (or a bulging portion 112), so the tube connecting device 100 can be configured with a pair of fastening bolts and fastening nuts. The fastening bolts will be described in detail below.

[0247] In the present invention, the fastening bolt is inserted into the connecting pipe, specifically, is inserted into the non-bulging part, and the fastening bolt is placed on the first side of the bulging part. Each fastening bolt further includes a bolt body and a bolt clamping tube, such as Figure 5 shown.

[0248] The bolt body 120 has a bolt rod 121, a bolt head 122, a bolt through hole 123 and a stopper 124. Figure 6 As shown. The outer wall of the bolt rod 121 is provided with a threaded structure, which is used to cooperate with the fastening nut 140 for threaded connection. The bolt head 122 is located at the first end of the bolt rod. In this embodiment, the bolt head 122 can be designed as a polygon, which is convenient for personnel to operate and hold or use auxiliary tools for screwing operations. In this embodiment, the threaded structure of the fastening bolt is set on the outer wall of the second end of the bolt rod 121.

[0249] A bolt through hole 123 is opened inside the bolt body 120; the bolt through hole 123 is arranged along the direction of the fastening bolt and passes through the bolt body 120 (that is, passes through the bolt rod 121 and the bolt head 122); the hole diameter of the bolt through hole 123 is greater than the maximum outer diameter R of the bulging part, so that the bolt body 120 can pass from the second end of the connecting pipe, through the bulging part 112, and be inserted into the non-bulging part 113, so that the bolt body 120 is placed on the first side of the bulging part 112.

[0250] The limiting part 124 is located inside the bolt body 120 (or the bolt through hole 123) and is used to carry the bolt clamping tube. In the present invention, the limiting part at least has a limiting body and a center hole; wherein the limiting body is arranged on the inner wall of the bolt body (or the hole wall of the bolt through hole) along the circumferential direction, and at least the outer diameter of the bolt clamping tube is greater than the aperture of the center hole, so that the limiting part can carry the bolt clamping tube through the limiting body; the center hole is located at the center position of the limiting body, and the aperture of the center hole is less than the aperture of the bolt through hole, and the aperture of the center hole is greater than the maximum outer diameter R of the bulging part, so that the bolt body 120 can pass through the bulging part 112 from the second end of the connecting tube and be inserted into the non-bulging part 113, so that the bolt body 120 is placed on the first side of the bulging part 112.

[0251] like Figure 6 and Figure 7 As shown, in this embodiment, the limiting portion 124 is a circular ring structure, the limiting body 124a is a ring body of the circular ring structure, the center hole 124b is a ring hole of the circular ring structure, and the outer diameter of the bolt clamp tube 130> the inner diameter of the bolt clamp tube 130≥ the aperture of the center hole 124b. In this embodiment, the limiting portion 124 (or the limiting body 124a) is arranged on the inner wall of the first end of the bolt body 120; the limiting portion is arranged at the first end of the bolt body, which has the effect of blocking larger impurities and foreign objects from entering the bolt through hole, and the overall structure of the bolt body is beautiful and easy to demold. In the present invention, the bolt rod 121, the bolt head 122 and the limiting portion 124 of the bolt body can be prepared by integral molding.

[0252] In the present invention, the aperture of the bolt through hole is greater than the aperture of the center hole and greater than the maximum outer diameter R of the bulging portion. In this way, the bolt body 120 can pass through the bulging portion 112 from the second end of the connecting tube and be inserted into the non-bulging portion 113, so that the bolt body 120 is placed on the first side of the bulging portion 112. However, this also means that the bolt body 120 itself does not have the ability to clamp or push the bulging portion 112. The present invention achieves the clamping and pushing effect on the bulging portion and its outer outer tube by clamping the bolt tube.

[0253] In the present invention, the bolt clamping tube is a tube structure formed by splicing or embedding, which can surround the connecting tube, more precisely, surround the non-bulging part or the outer tube of its outer layer to splice or embed to form a tube structure, so that the bolt clamping tube can be directly set on the first side of the bulging part, without having to pass through the bulging part from the second end of the connecting tube and put on the non-bulging part 113. The bolt clamping tube has a first clamping part, and the bolt clamping tube clamps and pushes the bulging part pressed into the outer tube through the first clamping part, and the first clamping part is a circular ring structure.

[0254] In the present invention, the diameter of the center hole is less than the outer diameter of the bolt clamp tube and less than the diameter of the bolt through hole. The outer diameter of the bolt clamp tube is less than the diameter of the bolt through hole, so that the bolt clamp tube or its clamp tube wall can be installed in the bolt through hole 123 (or the bolt body 120); the outer diameter of the bolt clamp tube is greater than the diameter of the center hole, so that the bolt clamp tube or its clamp tube wall installed in the bolt through hole 123 (or the bolt body 120) reaches the limit body 124a, and at least the outer end surface of its first end can be mounted on the limit body, the limit body carries the bolt clamp tube and blocks the bolt clamp tube from moving, and the limit portion limits and supports the bolt clamp tube through the limit body.

[0255] In the present invention, the first composite outer diameter R1≤the inner diameter of the first clamping portion<the second composite outer diameter R2, wherein the first composite outer diameter R1 is the outer diameter of the non-bulging portion pressed into the external tube, that is, the first composite outer diameter R1=the outer diameter r of the non-bulging portion+the wall thickness d of the external tube, such as Figure 3 As shown; the second composite outer diameter R2 is the outer diameter of the largest part of the bulging part pressed into the external tube, that is, the second composite outer diameter R2 = the maximum outer diameter R of the bulging part + the thickness d of the external tube wall, and the second composite outer diameter R2> the first composite outer diameter R1. The inner diameter of the first clamping part ≥ the first composite outer diameter R1, so that the bolt clamping tube or its tube wall can be directly assembled or embedded on the first side of the bulging part 112 and around the non-bulging part 113 or the outer layer of the external tube 150 to form a tube structure; the inner diameter of the first clamping part < the second composite outer diameter R2, so that the bolt clamping tube is located on the first side of the bulging part and cannot pass through the bulging part 112 pressed into the external tube, and the bolt clamping tube can be clamped and pushed into the bulging part of the external tube by the first clamping part.

[0256] In this embodiment, the bolt clamp tube 130 is a tube structure formed by two clamp tube walls 131 and 132. The outer diameter of the bolt clamp tube 130 = the aperture of the bolt through hole 123, the inner diameter of the bolt clamp tube 130 ≥ the aperture of the center hole 124b, and the inner diameter of the bolt clamp tube 130 = the first composite outer diameter R1.

[0257] The outer diameter of the bolt clamp tube 130 (also the outer diameter of the clamp tube walls 131, 132) = the hole diameter of the bolt through hole 123, so the clamp tube walls 131, 132 can be inserted into the bolt through hole 123, and the outer walls of the clamp tube walls 131, 132 are tightly fitted with the inner wall of the bolt body 120 (i.e., the hole wall of the bolt through hole). Figure 5 and Figure 7 As shown, the bolt body 120 can clamp the bolt clamp tube 130 formed by assembly through its inner wall (or the bolt through hole 123 can clamp the bolt clamp tube 130 through its hole wall), and the clamp tube walls 131 and 132 are tightly assembled together to maintain the tube structure state, and the tube structure is stable and fixed without looseness or shaking.

[0258] The outer diameter of the bolt clamping tube 130> the inner diameter of the bolt clamping tube 130≥ the diameter of the center hole 124b, so the bolt clamping tube 130 or its clamping tube wall in the bolt through hole 123 (or the bolt body 120) reaches the limit body 124a, and the entire end surface of the first end (including the outer end surface 130w and the inner end surface 130n) is on the limit body 124a. Figure 7 As shown, the limiting body limits and supports the bolt clamp tube; the second end of the bolt clamp tube is arranged flush with the second end of the bolt body (also the second end of the bolt rod). In this embodiment, the tube length of the bolt clamp tube 130 is equal to the distance from the limiting portion 124 to the second end of the bolt body.

[0259] The inner diameter of the bolt clamp tube 130 = the first composite outer diameter R1 (< the second composite outer diameter R2), so the clamp tube walls 131, 132 can be assembled on the first side of the bulging portion 112, around the non-bulging portion 113 or the outer layer of the outer tube 150 to form a tube structure, and the formed bolt clamp tube 130 itself cannot be pressed into the bulging portion 112 of the external tube, and the bolt clamp tube can be clamped and pushed into the bulging portion of the external tube through its second end. Therefore, in this embodiment, the second end of the bolt clamp tube is used as the first clamping portion 133, and the second end of the bolt clamp tube is close to the bulging portion and can be regarded as a circular ring structure, and its inner wall is a tubular curved surface or a cylindrical curved surface. In this embodiment, the bolt clamp tube 130 has a simple structure and is easy to manufacture.

[0260] At the non-bulging part between the bolt body (sleeved on the non-bulging part 113) and the bulging part, the clamping tube walls 131 and 132 surround the non-bulging part 113 or the outer tube 150 of the outer layer thereof and are assembled to form the bolt clamping tube 130, and are installed into the bolt body 120 along the non-bulging part 113 to form a fastening bolt; or, at the non-bulging part between the bolt body (sleeved on the non-bulging part 113) and the bulging part, the clamping tube walls 131 and 132 are respectively installed into the bolt body 120 along the non-bulging part 113, and are assembled in the bolt through hole 123 to form the bolt clamping tube 130 to form a fastening bolt. The formed fastening bolt is inserted on the connecting tube, more precisely, on the non-bulging part 113, and is located on the first side of the bulging part.

[0261] At the non-bulging portion between the bolt body (sleeved on the non-bulging portion 113) and the bulging portion, the bolt clamp tube or its clamp tube wall is inserted into the bolt through hole, which means that the tube length of the bolt clamp tube or its clamp tube wall is ≤ the maximum tube length of the non-bulging portion between the bolt body (sleeved on the non-bulging portion) and the bulging portion. In this way, the non-bulging portion has enough space to accommodate the bolt clamp tube or each clamp tube wall so that it can be inserted into the bolt through hole (from the second end of the bolt body).

[0262] In the present invention, each tube clamping wall of the bolt clamping tube is an arc-shaped tube wall and has the same length. In this embodiment, the tube clamping walls 131 and 132 have different arc sizes, wherein the tube clamping wall 131 is a tube wall of 1 / 3 arc (corresponding to a center angle of 240°), and the tube clamping wall 132 is a tube wall of 2 / 3 arc (corresponding to a center angle of 120°). The tube clamping walls 131 and 132 can be assembled together to form a tube structure (i.e., the bolt clamping tube 130). Figure 8 It should be noted that, in this embodiment, the two tube clamping walls 131 and 132 may be tube walls of 1 / 4 arc and 3 / 4 arc, or may be tube walls of 2 / 5 arc and 3 / 5 arc, respectively. This embodiment does not limit the size of the arc of each tube clamping wall of the bolt clamping tube, nor does it limit it to other related examples. It can be designed according to actual application conditions, as long as each tube clamping wall can just form a tube structure (bolt clamping tube) together.

[0263] In this embodiment, the tube clamping wall 131 has two side surfaces 131a and 131b, and the tube clamping wall 132 has two side surfaces 132a and 132b; the bolt tube clamping wall 130 formed by the tube clamping wall 131 and the tube clamping wall 132 has two adjacent parts, wherein the side surface 131a of one adjacent part is tightly spliced ​​with the side surface 132a, and the side surface 131b of the other adjacent part is tightly spliced ​​with the side surface 132b (or the side surface 131a of one adjacent part is tightly spliced ​​with the side surface 132b, and the side surface 131b of the other adjacent part is tightly spliced ​​with the side surface 132a). The tightening nut will be described in detail below.

[0264] In the present invention, the fastening nut 140 is inserted into the outer tube 150, and the fastening nut 140 is placed on the second side of the bulging part; each fastening nut 140 includes a nut body 142 and a second clamping part 141, wherein the second clamping part 141 is located inside the nut body 142; a threaded structure is provided on the inner wall of the nut body 142, which is used to cooperate with the threaded structure of the fastening bolt for threaded connection. The outer wall of the nut body 142 can also be provided with an anti-slip edge to facilitate the operator to hold or use auxiliary tools for screwing operations, such as Fig. 9 As shown. The second clamping portion 141 is located on the second side of the threaded structure of the nut body, and the second clamping portion 141 is used to clamp and press the bulging portion of the external tube. The second clamping portion 141 is a circular ring structure, which is arranged on the inner wall of the nut body 142 along the circumferential direction. In this embodiment, the inner wall of the second clamping portion 141 is a tubular curved surface or a cylindrical curved surface; the second clamping portion 141 is arranged at the second end of the nut body 142, which has the effect of blocking impurities and foreign matter from entering the nut body, and is beautiful and easy to demold. In the present invention, the second clamping portion 141 and the nut body 142 can be prepared by integral molding.

[0265] The inner diameter of the second clamping portion 141 is greater than or equal to the outer diameter of the external tube 150 , so that the external tube 150 can pass through the second clamping portion 141 and the fastening nut 140 can be sleeved on the external tube 150 .

[0266] The inner diameter of the second clamping portion 141 is less than the second composite outer diameter R2, and the second composite outer diameter R2 is the outer diameter of the largest part of the bulging portion pressed into the external tube, that is, the second composite outer diameter R2 = the maximum outer diameter R of the bulging portion + the wall thickness d of the external tube; in this way, when the external tube 150 is connected to the connecting tube, the fastening nut 140 (sleeved on the external tube) is located on the second side of the bulging portion 112 and cannot pass through the bulging portion 112, and the fastening nut 140 can be clamped by the second clamping portion 141 and pushed into the bulging portion of the external tube.

[0267] In this embodiment, the bulging portion 112 and the non-bulging portion connected thereto are pressed into the external tube 150, the connecting tube is connected to the external tube 150, and the fastening bolts sleeved on the non-bulging portion 113 are screwed and tightened with the fastening nuts 140 sleeved on the external tube 150. In this way, on the first side of the bulging portion 112, the first clamping portion 133 (or the second end of the bolt clamping tube), specifically the inner edge 133o of the first clamping portion will be stuck on the first pressure-bearing surface 112a of the bulging portion, so that the fastening bolts (or the bolt clamping tube 130) cannot pass through the bulging portion 112, and the bulging portion cannot slip out from the fastening bolts. The fastening bolts are clamped and pushed into the bulging portion of the external tube through the inner edge 133o. Here, the external tube 150 0 and the first pressure-bearing surface 112a are tightly pressed together and fit tightly between them, thereby forming a sealing point I between the first pressure-bearing surface 112a and the external tube; on the second side of the bulge 112, the second clamping portion 141, specifically the inner edge 141o of the second clamping portion will be stuck on the second pressure-bearing surface 112b of the bulge, so that the fastening nut 140 cannot pass through the bulge 112, and the bulge cannot slip out of the fastening nut. The fastening nut 140 clamps and pushes the bulge of the external tube through the inner edge 141o. Here, the external tube 150 and the second pressure-bearing surface 112b are tightly pressed together and fit tightly between them, thereby forming a sealing point II between the second pressure-bearing surface 112b and the external tube.

[0268] The fastening bolts and fastening nuts 140 on both sides of the bulge are screwed together to apply a pushing force in opposite directions to the connection (of the connecting tube and the external tube 150) or the bulge pressed into the external tube, thereby clamping and fixing the bulge and the external tube of its outer layer, fixing the connection between the connecting tube and the external tube, and forming multiple seals at the connection between the connecting tube and the external tube, thereby ensuring the high efficiency and stability of the seal.

[0269] The pipe-connectable container and the external pipe 150 provided by the present invention can be made of synthetic resin; the present invention does not limit the specific resin material selected, nor is it limited to other related examples, and can be selected according to actual application conditions.

[0270] For example, the container body 110, the fastening bolts (including the bolt body 120 and the bolt clamp tube 130), the fastening nut 140 and the external tube 150 can be prepared by any one or more synthetic resins of PFA (tetrafluoroethylene-perfluoroalkoxy vinyl ether copolymer, also known as perfluoroalkyl compound, soluble polytetrafluoroethylene), PTFE (polytetrafluoroethylene), PVDF (polyvinylidene fluoride), ETFE (tetrafluoroethylene-ethylene copolymer), FEP (tetrafluoroethylene-hexafluoropropylene copolymer), PVC (polyvinyl chloride), PP (polypropylene), PE (polyethylene), PCTFE (polychlorotrifluoroethylene), PEEK (polyetheretherketone), PSU (bisphenol A type polysulfone), PPSU (polyphenylene sulfone) and PESU, PES (polyethersulfone). In particular, the pipe-connectable containers and external tubes all made of PFA have better chemical resistance than resins of other materials, and are resistant to high temperatures and have good low permeability and cleanliness, which can ensure that the entire piping system operates reliably and stably under extreme temperature conditions. Therefore, the pipe-connectable containers made of PFA provided by the present invention are widely used in technical fields such as semiconductors, liquid crystal display panels, photovoltaics, biotechnology, pharmaceuticals, medical equipment, microelectronics, optics, magnetic disks, automotive industry, aviation and aerospace fields, and are particularly suitable for fluid media with strong corrosiveness and high purity requirements.

[0271] In this embodiment, the method for connecting the tube-connectable container 100 and the external tube 150 comprises the following steps:

[0272] The bolt body 120 passes through the bulging portion 112 from the second end of the connecting pipe and is inserted into the non-bulging portion 113;

[0273] The fastening nut 140 is sleeved on the external tube 150;

[0274] The bulging portion 112 and the non-bulging portion connected thereto are pressed into the outer tube 150, the outer tube is in an expanded state, a connection is formed between the connecting tube and the outer tube, and the fastening nut 140 is located on the second side of the bulging portion 112;

[0275] At the non-bulging portion between the bolt body 120 and the bulging portion 112, the clamping tube walls 131 and 132 surround the non-bulging portion 113 or the outer tube 150 of its outer layer to form a bolt clamping tube 130, and the bolt clamping tube 130 is installed into the bolt through hole 123 along the non-bulging portion 113 to form a fastening bolt; or, at the non-bulging portion between the bolt body 120 and the bulging portion 112, the clamping tube walls 131 and 132 are respectively installed into the bolt body 120 along the non-bulging portion 113, and are assembled in the bolt through hole 123 to form a bolt clamping tube 130 and a fastening bolt; the formed fastening bolt is inserted into the non-bulging portion 113 and is located on the first side of the bulging portion 112;

[0276] The fastening bolts and fastening nuts 140 on both sides of the bulging part are screwed and tightened, and a pushing force in opposite directions is applied to the connection (of the connecting pipe and the external pipe 150) or the bulging part pressed into the external pipe by the fastening bolts and the fastening nuts, so as to fix the connection between the connecting pipe and the external pipe and form multiple seals at the connection;

[0277] The operation sequence of the above steps can be adjusted appropriately without affecting other steps;

[0278] Repeat the above steps to connect and fix other connecting pipes to the external pipe.

[0279] In this embodiment, the disassembly method between the tube-connectable container 100 and the external tube 150 includes the following steps:

[0280] The fastening bolt and the fastening nut 140 are screwed open;

[0281] The connecting tube is withdrawn from the external tube 150 and is disassembled from the external tube 150;

[0282] The fastening bolt is separated from the bulging portion 112 along the non-bulging portion, and the bolt clamping tube 130 or the clamping tube walls 131 and 132 are taken out from the bolt through hole 123 (or the bolt body 120);

[0283] The bolt body 120 is removed from the second end of the connecting pipe through the bulging portion 112;

[0284] Remove the fastening nut 140 from the outer tube 150;

[0285] The operation sequence of the above steps can be adjusted appropriately without affecting other steps;

[0286] Repeat the above steps to disassemble and separate other connecting pipes from the external pipe.

[0287] The present invention arranges a bolt clamp tube formed by splicing in the bolt body, so that the fastening bolt can be placed on the first side of the bulging part 112, and can also clamp, push and press the bulging part of the external tube. The fastening bolts and fastening nuts on both sides of the bulging part are screwed together, so that the bulging part and the external tube of its outer layer are clamped and fixed, so that the connection between the connecting tube and the external tube is fixed and the stability of the connection is guaranteed. At the same time, multiple seals are formed at the connection between the connecting tube and the external tube, ensuring the high efficiency and stability of the seal. The pipe-connectable container 100 provided by the present invention has excellent connection and sealing effects, and the container device has a simple structure and is easy to disassemble and assemble, and has a good market prospect.

[0288] Embodiment 2

[0289] In the first embodiment described above, the container body 110 has a connecting pipe, and the container 100 connectable to the pipe may be provided with a pair of fastening bolts and fastening nuts.

[0290] The main difference from the first embodiment is that the container body 210 in the second embodiment has two or more connecting pipes; the container that can be connected by pipes in the second embodiment can be equipped with a corresponding number of fastening bolts and fastening nuts.

[0291] In this embodiment, the container body 210 has two connecting pipes, and the diameters of the connecting pipes can be the same. Fig.10 The diameters of the connecting pipes may also be different, such as Fig.11 As shown. A pair of fastening bolts and fastening nuts are required to be provided at the connection between each connecting pipe and the external pipe to fix the connection. Therefore, the container that can be connected by pipes can be equipped with two pairs of fastening bolts and fastening nuts. In this embodiment, the structure and material of the fastening bolts (including the bolt body and the bolt clamping pipe), the fastening nuts, and the external pipe can all be referred to in the first embodiment, and will not be repeated here.

[0292] In the present invention, a valve body (not shown in the figure) can be arranged in the accommodating chamber 211 of the container body to control the connection or disconnection between each connecting tube and the accommodating chamber 211 (or the connection and disconnection between each external tube and the accommodating chamber) and adjust parameters such as the flow rate and pressure of the fluid; the material of the valve body can be consistent with the container device.

[0293] Embodiment 3

[0294] In the above-mentioned first embodiment, the bulging portion 112 has a first pressure-bearing surface 112 a , a second pressure-bearing surface 112 b and a third pressure-bearing surface 112 c .

[0295] The main difference from the first embodiment is that the bulging portion 312 in the third embodiment has a first pressure-bearing surface 312a and a second pressure-bearing surface 312b.

[0296] like Fig.12As shown, in this embodiment, the bulge 312 is arranged at the second end of the connecting tube, the bulge 312 has a first pressure-bearing surface 312a and a second pressure-bearing surface 312b, but no third pressure-bearing surface is provided, the maximum outer diameters of the first pressure-bearing surface 312a and the second pressure-bearing surface 312b are the maximum outer diameter R of the bulge, and the maximum outer diameter of the first pressure-bearing surface 312a (or the second pressure-bearing surface 312b) replaces the third pressure-bearing surface in Embodiment 1 to form a sealing point III with the external tube 150.

[0297] Therefore, in this embodiment, the connection between each connecting tube and its external tube or the drum part pressed into the external tube can still form a triple seal, meet the sealing requirements of the connection and ensure the stability of the sealing performance. In this embodiment, a seal I is formed between the first pressure-bearing surface 312a and the external tube, and a seal II is formed between the second pressure-bearing surface 312b and the external tube. For details, please refer to Example 1. In this embodiment 3, the structure and material of the fastening bolts (including the bolt body and the bolt clamping tube), the fastening nuts, and the external tube can all refer to Example 1, and will not be repeated here.

[0298] Embodiment 4

[0299] For the above-mentioned embodiment 1, the outer diameter of the bolt clamp tube>the inner diameter of the bolt clamp tube≥the aperture of the center hole 124b, and the entire end surface of the first end of the bolt clamp tube (or its outer end surface 130w and inner end surface 130n) are both on the limiting body 124a.

[0300] The main difference from the first embodiment is that in the fourth embodiment, the outer diameter of the bolt clamp tube>the diameter of the center hole>the inner diameter of the bolt clamp tube, and the outer end surface 430w of the first end of the bolt clamp tube is located on the limiting body 424a.

[0301] In the first embodiment, (the outer diameter of the bolt clamp tube>) the inner diameter of the bolt clamp tube≥the diameter of the center hole, then the entire end surface of the first end of the bolt clamp tube or the clamp tube wall inserted into the bolt through hole (including the outer end surface 130w and the inner end surface 130n) is on the limiting body 124a, and the limiting body 124a blocks the movement of the bolt clamp tube, limits and supports the bolt clamp tube by supporting the entire end surface of the first end of the bolt clamp tube; however, in the first embodiment, the first end of the bolt body cannot directly contact the end surface of the bolt clamp tube or the clamp tube wall, and cannot push the bolt clamp tube or the clamp tube wall.

[0302] In this embodiment, the outer diameter of the bolt clamp tube>the diameter of the center hole>the inner diameter of the bolt clamp tube, then the bolt clamp tube 430 or the clamp tube wall inserted into the bolt through hole has its first end outer layer end surface 430w located on the limiting body 424a, and its first end inner layer end surface 430n located in the center hole 424b, such as Fig.13As shown. The limiting body 424a blocks the movement of the bolt clamp tube, limits the position of the bolt clamp tube and supports the bolt clamp tube by supporting the outer end surface 430w of the first end of the bolt clamp tube. Its inner end surface 430n is located in the center hole 424b, so that the first end of the bolt body can directly contact the bolt clamp tube 430 or the end surface of each clamp tube wall, that is, the inner end surface 430n located in the center hole, as shown in FIG. Fig.13 As shown; in this way, the bolt body can be entered from the first end of the bolt body by means of a pushing tool, the bolt clamping tube 430 or each clamping tube wall can be pushed out from the second end of the bolt body (or the bolt through hole), so that the bolt clamping tube 430 or each clamping tube wall can be quickly removed from the bolt body (or the bolt through hole), which facilitates the disassembly and maintenance of the container device. The pushing tool (not shown in the figure) can be a slender object, which is convenient for inserting into the center hole and the bolt through hole, extending to and pushing the bolt clamping tube or its clamping tube wall.

[0303] In this embodiment, the outer diameter of the bolt clamp tube is designed to be greater than the diameter of the center hole and greater than the inner diameter of the bolt clamp tube, so that the limiting part can realize the fast removal of the bolt clamp tube 430 or its clamp tube wall from the bolt body (or bolt through hole) while realizing the bearing and limiting of the bolt clamp tube, which is of great significance for the disassembly and maintenance work during the use of the container device. In this embodiment 4, the structure and material of the container body, the fastening nut, and the external tube can all refer to the embodiment 1, and will not be repeated here.

[0304] Embodiment 5

[0305] In the above-mentioned first embodiment, the limiting portion 124 is a circular ring structure, having a limiting body 124a and a center hole 124b, wherein the limiting body 124a is a ring body of the circular ring structure, and the center hole 124b is a ring hole of the circular ring structure.

[0306] The main difference from the first embodiment is that the limiting portion of the fifth embodiment has a plurality of through holes 524c in addition to the limiting body 524a and the center hole 524b, wherein the through holes 524c are provided on the limiting body 524a (or the ring body of the annular structure) (see Fig.14 (2)); the bolt clamp tube or each clamp tube wall corresponds to at least one through hole 524c, and a portion of the end surface is located at the corresponding through hole (see Fig.14 (3)).

[0307] In the first embodiment, the entire end surface of the first end of the bolt clamp tube or each clamp tube wall inserted into the bolt through hole (including the inner end surface and the outer end surface) is on the limiting body 124a. The limiting body 124a blocks the movement of the bolt clamp tube and limits and supports the bolt clamp tube by supporting the entire end surface of the first end of the bolt clamp tube. However, in the first embodiment, the first end of the bolt body cannot directly contact the end surface of the bolt clamp tube or the clamp tube wall and cannot push the bolt clamp tube or the clamp tube wall.

[0308] In this embodiment, the end surface of the first end of the bolt clamp tube or each clamp tube wall inserted into the bolt through hole (including the inner layer end surface and the outer layer end surface) is still on the limiting body 524a as a whole. The limiting body 524a blocks the movement of the bolt clamp tube, limits and supports the bolt clamp tube by supporting the end surface of the first end of the bolt clamp tube (see Fig.14 (1)); at the same time, the bolt clamp tube or each clamp tube wall has a portion of the end surface in at least one through hole 524c (refer to Fig.14 In (3), when the pushing tool enters the bolt body 520 from the first end of the bolt body, it can directly push the bolt clamping tube 530 or the clamping tube wall from the corresponding penetration hole 524c.

[0309] In the present invention, the bolt clamp tube or each clamp tube wall corresponds to at least one penetration hole, which means that at least one penetration hole needs to be opened on the limit body, the bolt clamp tube corresponds to at least one penetration hole, and part of the end face is located at the corresponding penetration hole; for the bolt clamp tube formed by splicing or embedding a plurality of clamp tube walls, at least a corresponding number of penetration holes need to be opened on the limit body, each clamp tube wall corresponds to at least one penetration hole, and part of the end face is located at the corresponding penetration hole. In this way, the pushing tool can push the bolt clamp tube or each clamp tube wall from the corresponding penetration hole, push the bolt clamp tube or each clamp tube wall out from the second end of the bolt body (or bolt through hole), and realize the rapid removal of the bolt clamp tube or the clamp tube wall from the bolt body (or bolt through hole), which provides convenience for the disassembly and maintenance of the container device. The pushing tool (not shown in the figure) can be selected as a slender object, which is convenient for extending into the penetration hole and the bolt through hole, extending to and pushing the bolt clamp tube or its clamp tube wall.

[0310] In this embodiment, the bolt clamping tube 530 has two clamping tube walls 531 and 532 with different arc lengths (the clamping tube wall 531 is a 1 / 3 arc, the clamping tube wall 532 is a 2 / 3 arc, and the arc length of the clamping tube wall 531 is less than the arc length of the clamping tube wall 532). Therefore, at least two through holes 524c need to be provided on the limiting body 524a. When two or more through holes are provided on the limiting body, the distribution of the through holes may be as follows:

[0311] First, the arc length between two adjacent through holes on the limiting body (or the ring body of the circular ring structure) is greater than or equal to the arc length of at least one of the clamping tube walls.

[0312] In this embodiment, the arc lengths of the tube clamping walls 531 and 532 are different. When two through holes 524c are provided on the limiting body 524a, no matter how the two through holes 524c are arranged, there will always be an arc length L2 between two adjacent through holes greater than the arc length L1 of the tube clamping wall 531 (see Fig.15 (1)); when more than two through holes 524c are provided on the limiting body 524a, and the through holes 524c are unevenly distributed in the circumferential direction, there may also be an arc length L2 between two adjacent through holes> the arc length L1 of the clamping tube wall 531 (refer to Fig.15 (2)). The operator cannot see through the bolt body and understand the distribution of the through holes inside it. Therefore, when installing the clamp wall into the bolt through hole, it may happen that the clamp wall (especially the clamp wall with a smaller arc length, such as the clamp wall 531 in this embodiment) is completely between two adjacent through holes, but not at any through hole, and does not correspond to any through hole (see Fig.15 In (1) and (2)), when the pushing tool enters the bolt body 520 from the first end of the bolt body, it cannot directly contact the end face of the tube clamping wall through any through hole to push the tube clamping wall, and thus cannot push the tube clamping wall out from the second end of the bolt body (or the bolt through hole), thus defeating the purpose of providing the through hole.

[0313] In the above situation, in order to avoid the situation where the clamped pipe wall does not correspond to any through hole, it is possible to set marks on the outer wall or end of the bolt body and other visible positions according to the distribution of through holes, and specify the adjacent positions of each adjacent pipe wall (see Fig.15 (3) as indicated by the arrow in the figure), so that at least one through hole is provided in the limiting body area D between any two adjacent marks, and the clamping wall located in the limiting body area D corresponds to at least one through hole.

[0314] Secondly, the arc length between any two adjacent penetration holes on the limiting body (or the ring body of the circular ring structure) is less than the arc length of any tube clamping wall among all the tube clamping walls forming the bolt tube clamping.

[0315] In the present invention, at least N through holes are evenly distributed in the circumferential direction on the limiting body (or the ring body of the circular ring structure), so that the arc length between any two adjacent through holes can be less than the arc length of any tube clamping wall among all the tube clamping walls forming the bolt clamping pipe; wherein N is a positive integer, which can be estimated according to the formula N×min(L1)≥circumference of bolt clamping pipe>(N-1)×min(L1), wherein the circumference of the bolt clamping pipe and min(L1) are known parameters, and min(L1) is the arc length of the tube clamping wall with the smallest arc length among all the tube clamping walls forming the bolt clamping pipe.

[0316] For a limit body (or a ring body with a circular ring structure) provided with N or more through holes, when the N through holes are evenly distributed in the circumferential direction, the arc length between two adjacent through holes among the N through holes evenly distributed in the circumferential direction is less than the arc length min (L1) of the clamping wall with the smallest arc length (refer to Fig.15 (4)), so that the arc length between any two adjacent through holes on the limiting body ≤ the arc length between two adjacent through holes among N through holes evenly distributed in the circumferential direction < the arc length min (L1) of the tube clamping wall with the smallest arc length ≤ the arc length of any tube clamping wall among all the tube clamping walls forming the bolt tube clamp, so that the arc length between any two adjacent through holes on the limiting body < the arc length of any tube clamping wall among all the tube clamping walls forming the bolt tube clamp can be achieved.

[0317] In this embodiment, the bolt clamp tube 530 is formed by splicing a clamp tube wall 531 (1 / 3 arc) and a clamp tube wall 532 (2 / 3 arc); the arc length of the clamp tube wall 531 is less than the arc length of the clamp tube wall 532, and the arc length L1 of the clamp tube wall 531 is the arc length min (L1) of the smallest clamp tube wall among all the clamp tube walls spliced ​​to form the bolt clamp tube; it can be seen from the above estimation formula that at least three (N=3) through holes 524c are evenly distributed in the circumferential direction (refer to Fig.15 In the middle (4) figure), the arc length L2 between two adjacent through holes in three through holes evenly distributed in the circumferential direction is less than 1 / 3 of the arc, then the arc length L2 between two adjacent through holes in three through holes evenly distributed in the circumferential direction is less than the arc length L1 of the tube clamping wall 531, so that the arc length between any two adjacent through holes on the limit body is less than the arc length of any tube clamping wall among all the tube clamping walls forming the bolt tube clamping; this means that when any tube clamping wall (including the tube clamping wall with the smallest arc length, such as the tube clamping wall 531) is installed into the bolt through hole from any position, the end face of the first end of the tube clamping wall is located at at least one through hole, and each tube clamping wall corresponds to at least one through hole; in this way, when the pushing tool enters the bolt body from the first end of the bolt body, it can directly extend to the end face of the tube clamping wall at the corresponding through hole, and push the tube clamping wall out from the second end of the bolt body (or the bolt through hole), so that each tube clamping wall can be quickly removed from the bolt body (or the bolt through hole). The materials and structures of the container body, the bolt clamp tube, the fastening nut, and the external tube of this embodiment can all be referred to in the first embodiment, and will not be described in detail here.

[0318] Embodiment 6

[0319] In the above-mentioned first embodiment, the limiting portion 124 is a circular ring structure, having a limiting body 124a and a center hole 124b, wherein the limiting body 124a is a ring body of the circular ring structure, and the center hole 124b is a ring hole of the circular ring structure.

[0320] The main difference from the first embodiment is that the limiting portion 624 in the sixth embodiment is formed by a plurality of protruding teeth distributed along the circumferential direction on the inner wall of the bolt body 620 (or the hole wall of the bolt through hole), and the limiting portion 624 has a limiting body 624a, a center hole 624b and a gap 624c (see Fig.16 In (2), the limiting body 624a is a plurality of convex teeth, the center hole 624b is a hole surrounded by a plurality of convex teeth distributed along the circumferential direction, and the gap 624c is a space formed between adjacent convex teeth.

[0321] Similar to the first embodiment, in the sixth embodiment, the outer diameter of the bolt clamp tube> the inner diameter of the bolt clamp tube≥ the diameter of the center hole 624b. When the bolt clamp tube 630 or the clamp tube wall is inserted into the bolt through hole and reaches the position limiting body 624a (or the convex teeth), the outer end surface and the inner end surface of the first end are both on the position limiting body 624a (or the convex teeth). Fig.16 As shown in (3), the limiting body 624a (or the protruding teeth) blocks the movement of the bolt clamp tube by bearing the inner and outer end surfaces of the bolt clamp tube, and limits and supports the bolt clamp tube.

[0322] In this embodiment, the bolt clamp tube 630 is a tube structure with a tube seam, rather than a plurality of clamp tube walls spliced ​​or embedded (see Fig.16 (1)): Since the position limiting portion 624 in this embodiment has a gap 624c (or a gap 624c is formed between the protruding teeth), the first end of the bolt clamp tube has no end surface at the center hole 624b, but a part of the end surface is at the gap 624c (see Fig.16 (3) The arrow in Figure 6 indicates the position), therefore, the pushing tool can push the bolt clamp tube 630 from the gap 624c, and push the bolt clamp tube 630 out from the second end of the bolt body 620 (or the bolt through hole), so that the bolt clamp tube 630 can be quickly removed from the bolt body (or the bolt through hole), providing convenience for the disassembly and maintenance of the container device.

[0323] From the above, it can be seen that when the bolt clamp tube is a tube body structure with a tube gap, and the outer diameter of the bolt clamp tube is greater than the inner diameter of the bolt clamp tube and greater than the aperture of the center hole, regardless of the arc length of the convex teeth and the gap, the limit part can bear the load on the bolt clamp tube and the bolt clamp tube can be quickly removed from the bolt body.

[0324] In this embodiment, the bolt clamp tube 630 is formed by splicing or embedding a plurality of clamp tube walls (see Fig.17 ): Since the position-limiting portion 624 in this embodiment has a gap 624c (or a gap 624c is formed between the protruding teeth), if the arc length of the gap is ≥ the arc length of at least one of the clamping walls of all the clamping walls forming the bolt clamping pipe, for example, the arc length L3 of the gap is ≥ the arc length L1 of the clamping wall 631 (refer to Fig.18(1)); the operator cannot see through the bolt body and understand the distribution position of the internal convex teeth. Therefore, when installing the tube clamping wall or the bolt clamping tube into the bolt through hole, it may happen that the tube clamping wall (especially the tube clamping wall with a smaller arc length, such as the tube clamping wall 631) is completely in the gap (especially the gap with a larger arc length, such as the gap with an arc length of L3) and not in any convex teeth. The tube clamping wall slips out of the gap, and there is no convex tooth to support, limit and support the tube clamping wall. Therefore, the bolt clamping tube cannot support the bulging part pressed into the external tube to clamp and push it, and cannot clamp and fix the connection between the connecting tube and the external tube.

[0325] In order to avoid the above-mentioned tube clamping wall slipping, it is necessary to limit the arc length of the gap (or the arc length between two adjacent convex teeth). Specifically, the arc length of the maximum gap is designed according to the arc length min (L1) of the smallest tube clamping wall among all the tube clamping walls forming the bolt tube clamping. The arc length max (L3) of the maximum gap is designed to be less than the arc length min (L1) of the smallest tube clamping wall among all the tube clamping walls forming the bolt tube clamping (see Fig.18 In (2), the arc length L3 of the maximum gap is less than the arc length L1 of the minimum clamping wall 631), so that the arc length of any gap (or the arc length of the maximum gap) is less than the arc length of any clamping wall (or the arc length of the minimum clamping wall) among all the clamping walls forming the bolt clamping tube; in this way, when any clamping wall is inserted into the bolt through hole, since the arc length of each clamping wall itself is greater than the arc length of any gap, each clamping wall cannot slip out from any gap, and each clamping wall will have at least one convex tooth to support it.

[0326] As can be seen from the above, when the bolt clamp is formed by splicing or embedding a plurality of clamp walls, and the outer diameter of the bolt clamp is greater than the inner diameter of the bolt clamp and greater than the diameter of the center hole, and the arc length of any gap is less than the arc length of any clamp wall in all the clamp walls forming the bolt clamp, regardless of the arc length of the convex teeth, the limiter can bear the load on the bolt clamp. The material and structure of the container body, the fastening nut, and the external tube of this embodiment can refer to the first embodiment, and will not be described in detail here.

[0327] As a further extension of the sixth embodiment, it is as follows:

[0328] In the above-mentioned sixth embodiment, when the bolt clamp is formed by splicing or embedding a plurality of clamp walls, and the outer diameter of the bolt clamp is greater than the inner diameter of the bolt clamp ≥ the aperture of the center hole, and at the same time the arc length of any gap is less than the arc length of any clamp wall among all the clamp walls forming the bolt clamp, the bearing capacity of each clamp wall by the limiting part can be achieved.

[0329] In the sixth embodiment, the first end of the bolt clamp tube has no end surface at the center hole 624b, and only a part of the end surface is at the gap 624c, and the pushing tool can only push the bolt clamp tube or its clamp tube wall from the gap; for each clamp tube wall assembled or chiseled to form the bolt clamp tube, if there is an arc length of the convex tooth ≥ the arc length of at least one of the clamp tube walls among all the clamp tube walls forming the bolt clamp tube, such as the arc length L4 of the convex tooth ≥ the arc length L1 of the clamp tube wall 631 (see Fig.18 (3)); the operator cannot see through the bolt body and understand the distribution position of the internal convex teeth. Therefore, when installing the tube clamping wall or the bolt tube clamping wall into the bolt through hole, it may happen that the tube clamping wall (especially the tube clamping wall with a smaller arc length, such as the tube clamping wall 631) is completely on a convex tooth (especially the convex tooth with a larger arc length, such as the convex tooth with an arc length of L4) and is not located in any gap. Therefore, when the pushing tool enters the bolt body from the first end of the bolt body, it can neither directly contact the end face of the tube clamping wall through the center hole nor through any gap to push the tube clamping wall, and thus cannot push the tube clamping wall out from the second end of the bolt body (or the bolt through hole).

[0330] In order to avoid the situation that the clamping wall is completely on a convex tooth and not in any gap, it is necessary to limit the arc length of the convex tooth. Specifically, the arc length of the maximum convex tooth is designed according to the arc length min (L1) of the smallest clamping wall among all the clamping walls forming the bolt clamping tube, and the arc length of the maximum convex tooth is designed to be less than the arc length min (L1) of the smallest clamping wall among all the clamping walls forming the bolt clamping tube (refer to Fig.18 In the middle (4) figure, the arc length L4 of the largest convex tooth is less than the arc length L1 of the smallest tube clamping wall 631, so that the arc length of any convex tooth is less than the arc length of any tube clamping wall among all the tube clamping walls forming the bolt tube clamping; in this way, when any tube clamping wall is inserted into the bolt through hole, since the arc length of the tube clamping wall itself is greater than the arc length of any convex tooth, part of the end face of each tube clamping wall at its first end will be in the gap, and the pushing tool can directly contact the end face of the tube clamping wall from the gap, push the tube clamping wall, and push the tube clamping wall out from the second end of the bolt body (or the bolt through hole).

[0331] From the above, it can be seen that when the bolt clamp tube is formed by splicing or embedding multiple clamp tube walls, and the outer diameter of the bolt clamp tube is greater than the inner diameter of the bolt clamp tube and greater than the aperture of the center hole, and at the same time, the arc length of any gap and the arc length of any convex tooth are smaller than the arc length of any clamp tube wall among all the clamp tube walls forming the bolt clamp tube, the bearing of the bolt clamp tube by the limiting part and the rapid removal of the bolt clamp tube from the bolt body can be realized.

[0332] Embodiment 7

[0333] In the fourth embodiment, the limiting portion 124 is a circular ring structure, having a limiting body 124a and a center hole 124b, wherein the limiting body 124a is a ring body of the circular ring structure, and the center hole 124b is a ring hole of the circular ring structure.

[0334] The main difference from the fourth embodiment is that the limiting portion 724 in the seventh embodiment is formed by a plurality of protruding teeth distributed along the circumferential direction on the inner wall of the bolt body 720 (or the hole wall of the bolt through hole), and the limiting portion 724 has a limiting body 724a, a center hole 724b and a gap 724c (see Fig.19 In (2), the limiting body 724a is a plurality of convex teeth, the center hole 724b is a hole surrounded by a plurality of convex teeth distributed along the circumferential direction, and the gap 724c is a space formed between adjacent convex teeth.

[0335] Similar to the fourth embodiment, in the seventh embodiment, the outer diameter of the bolt clamp tube> the hole diameter of the center hole 724b> the inner diameter of the bolt clamp tube. When the bolt clamp tube 730 or the clamp tube wall is inserted into the bolt through hole and reaches the limit body 724a (or the convex teeth), the outer end surface 730w of the first end is located on the limit body 724a, and the inner end surface 730n is located in the center hole 724b. Fig.19 (3)). The limiting body 724a (or the convex tooth) blocks the movement of the bolt clamp tube, limits the position of the bolt clamp tube and supports the bolt clamp tube by supporting the outer end surface 730w of the first end of the bolt clamp tube; its inner end surface 730n is located in the center hole 724b, so that when the pushing tool enters the bolt body from the first end of the bolt body, it can directly extend to the end surface of the bolt clamp tube or each clamp tube wall at the center hole 724b, push the bolt clamp tube or each clamp tube wall out from the second end of the bolt body (or the bolt through hole), and realize the rapid removal of each clamp tube wall from the bolt body (or the bolt through hole).

[0336] In this embodiment, the bolt clamp tube 730 is a tube structure with a tube seam, rather than a plurality of clamp tube walls spliced ​​or chiseled: the inner end surface 730n of the first end of the bolt clamp tube is located at the center hole 724b, and the outer end surface 730w and part of the end surface are located at the gap 724c. Fig.19 As shown in (1), the pushing tool can push the inner end surface 730n from the center hole 724b, or push the outer end surface 730n from the gap 724c, to push the bolt clamp tube out from the second end of the bolt body (or the bolt through hole), so as to quickly remove the bolt clamp tube from the bolt body (or the bolt through hole).

[0337] From the above, it can be seen that when the bolt clamp tube is a tube body structure with a tube gap, and the outer diameter of the bolt clamp tube is greater than the diameter of the center hole and greater than the inner diameter of the bolt clamp tube, regardless of the arc length of the convex teeth and the gap, the limiting part can bear the load on the bolt clamp tube and the bolt clamp tube can be quickly removed from the bolt body.

[0338] When the bolt clamp 730 in this embodiment is formed by splicing a plurality of clamp walls: as in the sixth embodiment above, in order to prevent the clamp wall from slipping out of the gap, it is necessary to limit the arc length of the gap (or the arc length between two adjacent convex teeth), and the arc length max (L3) of the maximum gap is designed to be less than the arc length min (L1) of the smallest clamp wall among all the clamp walls forming the bolt clamp, so that the arc length of any gap (or the arc length of the maximum gap) is less than the arc length of any clamp wall among all the clamp walls forming the bolt clamp (or the arc length of the smallest clamp wall); in this way, when any clamp wall is inserted into the bolt through hole, since the arc length of each clamp wall itself is greater than the arc length of any gap, each clamp wall cannot slip out of any gap, and each clamp wall will have at least one convex tooth to support it (refer to the corresponding content in the sixth embodiment above).

[0339] Since the first end of each tube clamping wall has an inner end surface 730n located in the center hole 724b, for the convex teeth supporting the tube clamping wall, even if the arc length of the convex teeth is greater than or equal to the arc length of the tube clamping wall, and the outer end surface 730w of the first end of the tube clamping wall is just completely located on the convex teeth and not located in any gap, the pushing tool can directly contact the inner end surface 730n of the tube clamping wall from the center hole 724b, push the tube clamping wall, and push the tube clamping wall out from the second end of the bolt body (or the bolt through hole); If the arc length of the convex tooth is less than the arc length of the tube clamping wall, the inner end face 730n of the first end of the tube clamping wall is in the center hole 724b, and the outer end face 730w and part of the end face are in the gap 724c. Therefore, the pushing tool can push the inner end face 730n from the center hole 724b, and can also push the outer end face 730n from the gap 724c, so as to push the tube clamping wall out from the second end of the bolt body (or the bolt through hole), thereby realizing the rapid removal of the bolt clamping tube from the bolt body (or the bolt through hole).

[0340] As can be seen from the above, when the bolt clamp is formed by splicing a plurality of clamp walls, and the outer diameter of the bolt clamp is greater than the diameter of the center hole and greater than the inner diameter of the bolt clamp, and at the same time, the arc length of any gap is less than the arc length of any clamp wall in all the clamp walls forming the bolt clamp, regardless of the arc length of the convex teeth, the limit portion can carry the bolt clamp and the bolt clamp can be quickly removed from the bolt body. The material and structure of the container body, the fastening nut, and the external tube of this embodiment can be referred to in the first embodiment, and will not be described in detail here.

[0341] Embodiment 8

[0342] For the above-mentioned embodiment 1, each fastening bolt is provided with a bolt clamp tube 130, and the bolt clamp tube 130 is placed in the bolt through hole. The length of the bolt clamp tube is equal to the distance from the limiting portion to the second end of the bolt body, and the length of the bolt clamp tube or its clamp tube wall is ≤ the maximum length of the non-bulging portion between the bolt body (sleeved on the non-bulging portion) and the bulging portion.

[0343] The main difference from the first embodiment is that in the eighth embodiment, each fastening bolt can be provided with two or more bolt clamping tubes 830, each bolt clamping tube 830 is stacked in the bolt through hole, the sum of the tube lengths of each bolt clamping tube is equal to the distance from the limiting portion to the second end of the bolt body, and the tube length of each bolt clamping tube or its clamping tube wall is ≤ the maximum tube length of the non-bulging part between the bolt body (sleeved on the non-bulging part) and the bulging part.

[0344] In the following, the distance from the limiting portion to the second end of the bolt body is S2, the length of the bolt body is S3, the total length of the non-bulging portion is S, and when the bolt body is inserted into the non-bulging portion (or the connecting pipe), the maximum tube length of the non-bulging portion between the bolt body and the bulging portion is S4, therefore, S4=S-S3; the tube length of the bolt clamp tube 130 in Example 1 is S1, and the tube length of the bolt clamp tube 830 in Example 8 is S1'.

[0345] In the first embodiment, a bolt clamping tube 130 is placed in the bolt body 120 (or the bolt through hole) to form a fastening bolt; the bolt clamping tube 130 in the bolt body has a first end on the limiting portion 124, and the limiting portion 124 limits and supports the bolt clamping tube 130, and the second end thereof is flush with the second end of the bolt body 120 (i.e., the second end of the bolt rod), and serves as a first clamping portion to clamp and push the bulging portion 112 pressed into the external tube. The bolt clamping tube 130 is located between the limiting portion 124 and the second end of the bolt body, and its tube length S1 is the distance S2 from the limiting portion 124 to the second end of the bolt body. The bolt clamping tube 130 or its clamping tube wall can be arranged between the bolt body 120 (sleeved on the non-bulging part) and the bulging part 112 along the direction of the connecting tube, and the bolt clamping tube 130 or its clamping tube wall can be installed into the bolt body 120 from the second end of the bolt body. Therefore, it is required that the tube length S1 of the bolt clamping tube 130 or its clamping tube wall is less than or equal to the maximum tube length S4 of the non-bulging part between the bolt body (sleeved on the non-bulging part) and the bulging part (S1≤S4).

[0346] In practical applications, if the distance S2 from the limiting portion to the second end of the bolt body is designed to be large, the tube length S1 of the bolt clamping tube 130 or its clamping tube wall is also large, or the installation space of the container device is limited, the tube length of the non-bulging portion is designed to be small, and the maximum tube length S4 of the non-bulging portion between the bolt body (sleeved on the non-bulging portion) and the bulging portion is also small, it may happen that the tube length S1 of the bolt clamping tube 130 or its clamping tube wall is greater than the maximum tube length S4 of the non-bulging portion between the bolt body (sleeved on the non-bulging portion) and the bulging portion (S1>S4), such as Fig. 20As shown in (1), the bolt clamp tube 130 or its clamp tube wall cannot be arranged between the bolt body 120 (sleeved on the non-bulging part) and the bulging part 112 along the direction of the connecting tube, and cannot be inserted into the bolt body 120 from the second end of the bolt body to form a fastening bolt.

[0347] In order to avoid the above problems, the assemblability of the bolt clamp tube and the bolt body is improved so that the bolt clamp tube can be installed into the bolt body (or the bolt through hole) and assembled on the non-bulging part to form a fastening bolt. In this embodiment eight, two bolt clamp tubes 830 are provided for each fastening bolt, and the tube length S1' of the bolt clamp tube 830 is: S1'≤S4, S1'+S1'=S2.

[0348] In the eighth embodiment, the tube length S1' of each bolt clamp tube 830 is designed according to the maximum tube length S4 of the non-bulging portion between the bolt body (sleeved on the non-bulging portion) and the bulging portion. The tube length S1' of the bolt clamp tube 830 is designed to be less than or equal to the maximum tube length S4 of the non-bulging portion between the bolt body 820 (sleeved on the non-bulging portion) and the bulging portion 812 (S1'≤S4). Fig. 20 As shown in (2); in this way, it is ensured that each bolt clamping tube 830 or its clamping tube wall can be arranged between the bolt body 820 (sleeved on the non-bulging part) and the bulging part 812 along the direction of the connecting tube, and each bolt clamping tube 830 or its clamping tube wall can be installed into the bolt body 820 (or the bolt through hole) from the second end of the bolt body along the connecting tube. In this eighth embodiment, when the two bolt clamping tubes 830 are assembled with the bolt body 820, one of the bolt clamping tubes 830 can be installed into the bolt through hole first, and then the other bolt clamping tube 830 can be installed into the bolt through hole. The two bolt clamping tubes 830 are installed into the bolt through hole in turn and stacked in the bolt through hole.

[0349] In the eighth embodiment, the sum of the tube lengths S1' of each bolt clamp tube 830 is designed according to the distance S2 from the limiting portion to the second end of the bolt body. The sum of the tube lengths S1' of each bolt clamp tube 830 is designed to be equal to the distance S2 from the limiting portion to the second end of the bolt body (S1'+S1'=S2). Then, the tube length S1' of each bolt clamp tube 830 is less than the distance S2 from the limiting portion to the second end of the bolt body (S1'<S2). In this way, the two bolt clamp tubes 830 stacked in the bolt through hole are still located within the limiting portion as a whole. Between the positioning portion 824 and the second end of the bolt body, the first end of the whole is on the limiting portion 824, and the limiting portion 824 limits and supports the two stacked bolt clamping tubes 830, and the second end is flush with the second end of the bolt body 820 (that is, the second end of the bolt rod) and serves as a first clamping portion to clamp and push the bulging portion pressed into the external tube; the two bolt clamping tubes 830 provided in this embodiment eight can equivalently replace the bolt clamping tubes 130 in embodiment one to implement functions such as clamping and pushing.

[0350] It should be noted that in this embodiment, the fastening bolt can also have three or even more bolt clamping tubes 830, and the tube lengths of the bolt clamping tubes 830 can be equal or unequal, as long as the tube length S1' of each bolt clamping tube 830 is ≤ the maximum tube length S4 of the non-bulging part between the bolt body 820 and the bulging part 812 (sleeved on the non-bulging part), and the sum of the tube lengths S1' of each bolt clamping tube 830 is equal to the distance S2 from the limiting part to the second end of the bolt body. The present invention does not specifically limit the number and tube length of the bolt clamping tubes in the fastening bolt, nor does it limit it in other related embodiments, and can be designed according to actual applications.

[0351] In the eighth embodiment, the distance S2 from the limiting portion to the second end of the bolt body remains unchanged, and the length of each bolt clamp tube is shortened by providing two or more bolt clamp tubes for each fastening bolt; the length of each bolt clamp tube is designed according to the maximum tube length S4 of the non-bulging portion between the bolt body 820 (sleeved on the non-bulging portion) and the bulging portion 812 and the distance S2 from the limiting portion to the second end of the bolt body. Specifically, the tube length S1' of each bolt clamp tube is ≤ the maximum tube length S4 of the non-bulging portion between the bolt body 820 (sleeved on the non-bulging portion) and the bulging portion 812, and the tube length of each bolt clamp tube is ≤ and is equal to the distance S2 from the limiting part to the second end of the bolt body. In this way, no matter how the distance S2 from the limiting part to the second end of the bolt body in the pipe-connectable container is related to the maximum tube length S4 of the non-bulging part between the bolt body (sleeved on the non-bulging part) and the bulging part 812, the assembly of the bolt clamp tube and the bolt body can be guaranteed, and the fastening bolt is assembled on the non-bulging part, thereby solving the assembly problem between the limiting part and the bolt body. In this embodiment eight, two or more bolt clamp tubes are configured for each fastening bolt to shorten the tube length of each bolt clamp tube, thereby improving the assemblyability and application range of the bolt clamp tube. The material and structure of the container body, fastening nut, and external tube of this embodiment can be referred to in the first embodiment, and will not be repeated here.

[0352] Embodiment 9

[0353] In the above-mentioned first embodiment, the limiting portion is located inside the bolt body 120 (or the bolt through hole 123 ), and specifically, is disposed on the inner wall of the first end of the bolt body 120 .

[0354] The main difference from Example 1 is that in Example 9, the limiting portion is moved or extended toward the second end of the bolt body, shortening the distance from the limiting portion to the second end of the bolt body so that it is not greater than the maximum tube length of the non-bulging portion between the bolt body (sleeved on the non-bulging portion) and the bulging portion.

[0355] In the following, the length of the bolt body is S3, the total length of the non-bulging part is S, and when the bolt body is inserted into the non-bulging part (or the connecting pipe), the maximum tube length of the non-bulging part between the bolt body and the bulging part is S4, therefore, S4=S-S3; the tube length of the bolt clamping tube 130 in Example 1 is S1, and the distance from the limiting part to the second end of the bolt body is S2, and the tube length of the bolt clamping tube 930 in this Example 9 is S1", and the distance from the limiting part to the second end of the bolt body is S2".

[0356] In the first embodiment, if the distance S2 from the stopper to the second end of the bolt body is designed to be large, the tube length S1 of the bolt clamping tube 130 or its clamping tube wall is also large, or the installation space of the container device is limited, the tube length of the non-bulging part is designed to be small, and the maximum tube length S4 of the non-bulging part between the bolt body (sleeved on the non-bulging part) and the bulging part is also small, it may happen that the tube length S1 of the bolt clamping tube 130 or its clamping tube wall is greater than the maximum tube length S4 of the non-bulging part between the bolt body (sleeved on the non-bulging part) and the bulging part (S1>S4), such as Fig.21 As shown in (1), the bolt clamp tube 130 or its clamp tube wall cannot be arranged between the bolt body 120 (sleeved on the non-bulging part) and the bulging part 112 along the direction of the connecting tube, and cannot be inserted into the bolt body 120 from the second end of the bolt body to form a fastening bolt.

[0357] In order to solve the above problems, the eighth embodiment of the present invention keeps the distance S2 from the limit portion to the second end of the bolt body unchanged, and realizes the assembly of the bolt clamp tube and the bolt body by providing two or more bolt clamp tubes for each fastening bolt and shortening the length of each bolt clamp tube; the ninth embodiment of the present invention provides another new technical solution.

[0358] In the ninth embodiment, each fastening bolt is provided with a bolt clamp tube, and the distance from the limiting portion to the second end of the bolt body is shortened to S2" by moving or extending the limiting portion toward the second end of the bolt body, and is made not greater than the maximum tube length S4 of the non-bulging portion between the bolt body (sleeved on the non-bulging portion) and the bulging portion (S2"≤S4); the tube length of the bolt clamp tube is determined by the distance from the limiting portion to the second end of the bolt body. Therefore, the bolt clamp tube 930 adapted to the bolt body 920 in the ninth embodiment is also shortened to S1" accordingly, and S1"=S2", so S1"≤S4, as shown in FIG. Fig.21 As shown in (2) and (3), Fig.21 (2) is a diagram showing the position limiting portion being moved toward the second end of the bolt body. Fig.21(3) is a diagram showing that the limiting part is extended to the second end of the bolt body. In this way, the bolt clamping tube 930 or its clamping tube wall can be arranged between the bolt body 920 (sleeved on the non-bulging part) and the bulging part 912 along the direction of the connecting tube, and the bolt clamping tube 930 or its clamping tube wall can be inserted into the bolt body 820 (or the bolt through hole) from the second end of the bolt body along the connecting tube; similar to the first embodiment, the first end of the bolt clamping tube 930 is on the limiting part 924, and the limiting part 924 limits and supports the bolt clamping tube 930, and the second end is flush with the second end of the bolt body 920 (i.e., the second end of the bolt rod), and serves as a first clamping part to clamp and push the bulging part pressed into the external tube.

[0359] In the ninth embodiment, the closer the position where the limiting portion 924 moves or extends is to the second end of the bolt body (or the second end of the bolt rod), the smaller the distance S2" from the limiting portion to the second end of the bolt body, the shorter the length S1" of the bolt clamping tube 930 adapted thereto, and the easier it is for the bolt clamping tube 930 to be assembled with the bolt body on the non-bulging portion 913 to form a tightening bolt.

[0360] It should be noted that, in the ninth embodiment, the limiting portion 924 cannot be moved or extended to the second end of the bolt body (or the second end of the bolt rod). This is because: when the limiting portion 924 moves or extends to the second end of the bolt body (or the second end of the bolt rod), the distance S2" from the limiting portion to the second end of the bolt body is zero, and at this time, the bolt clamping tube 930 has nowhere to be set; while in the present invention, the aperture of the center hole is greater than the maximum outer diameter R of the bulging portion, and the limiting portion 924 can pass through the bulging portion 112, and it itself does not have the ability to clamp and push the bulging portion 112, and it is also impossible to effectively fix and seal the connection between the connecting tube and the external tube. Therefore, the limiting portion cannot be moved or extended to the second end of the bolt rod, and space needs to be reserved between the limiting portion and the second end of the bolt body to set the bolt clamping tube.

[0361] In the ninth embodiment, each fastening bolt is provided with a bolt clamp tube, and the tube length of the bolt clamp tube is determined by the distance from the limiting portion to the second end of the bolt body. By shortening the distance from the limiting portion to the second end of the bolt body and making it smaller than the maximum tube length S4 of the non-bulging portion between the bolt body and the bulging portion (sleeved on the non-bulging portion), the tube length of the bolt clamp tube is shortened, and the tube length S1" of the bolt clamp tube after shortening is ≤ the maximum tube length S4 of the non-bulging portion between the bolt body and the bulging portion (sleeved on the non-bulging portion). In this way, the assembly of the bolt clamp tube and the bolt body is guaranteed, and the fastening bolt is assembled on the non-bulging portion, thereby solving the assembly problem between the bolt clamp tube and the bolt body. The ninth embodiment shortens the tube length of the bolt clamp tube by shortening the distance from the limiting portion to the second end of the bolt body, thereby improving the assemblability and application range of the container that can be connected by pipes. The material and structure of the container body, the fastening nut, and the external tube of this embodiment can be referred to the first embodiment, and will not be repeated here.

[0362] Embodiment 10

[0363] In the first embodiment, the bolt clamping tube 130 is a tube structure formed by splicing two clamping tube walls 131 and 132 with different arc sizes.

[0364] The main difference from the first embodiment is that in the tenth embodiment, the bolt clamping tube is formed by splicing a tube structure with a tube seam, and the tube seam is arranged along the direction where the bolt clamping tube is located.

[0365] In the present invention, the bulging portion of the connecting pipe is pressed into the external pipe, so that the connecting pipe and the external pipe are connected to form a fluid passage; fastening bolts and fastening nuts are respectively arranged on both sides of the bulging portion pressed into the external pipe, and the fastening bolts and fastening nuts are screwed to clamp and push the bulging portion pressed into the external pipe, thereby fixing the connection between the connecting pipe and the external pipe and forming a seal; the fastening nut is arranged on the second side of the bulging portion and is sleeved on the external pipe; the fastening bolt is arranged on the first side of the bulging portion and is sleeved on the connecting pipe, to be precise, it is sleeved on the non-bulging portion, which requires the fastening bolt: its aperture is greater than or equal to the maximum outer diameter R of the bulging portion, so that the fastening bolt can pass through the bulging portion from the second end of the connecting pipe and sleeve on the non-bulging portion, and is smaller than the maximum outer diameter R of the bulging portion, so that the fastening bolt sleeved at the non-bulging portion cannot pass through the bulging portion, and can clamp and push the bulging portion.

[0366] The above two requirements for the hole diameter of the fastening bolt are contradictory, but they are also basic conditions that the fastening bolt in the present invention must meet. In order to simultaneously meet the above two requirements and arrange the fastening bolt on the first side of the bulging part, the present invention divides the fastening bolt into two parts, a bolt body and a bolt clamping tube. The bolt body and the bolt clamping tube respectively implement part of the requirements and functions of the fastening bolt, and in particular, the contradictory requirements and functions of the fastening bolt are implemented and realized through different components. Specifically, the present invention opens a bolt through hole inside the bolt body, and the aperture of the bolt through hole is greater than or equal to the maximum outer diameter R of the bulging part, so that the bolt body can pass through the bulging part from the second end of the connecting pipe and be inserted on the non-bulging part. The outer wall of the bolt body is provided with a threaded structure to cooperate with the fastening nut and tighten the bolt. At the same time, the bolt body is used to carry the bolt clamping tube, clamp and support the bolt clamping tube, etc.; the bolt clamping tube is arranged in the bolt through hole or the bolt body, and the aperture of the bolt clamping tube is less than the maximum outer diameter R of the bulging part, and it is a tube structure formed by splicing or embedding around the non-bulging part, so that the bolt clamping tube can directly be inserted into the first bulging part, clamp and push the bulging part pressed into the external tube without passing through the bulging part.

[0367] In order to enable the bolt clamp tube with a hole diameter smaller than the maximum outer diameter R of the bulging part to be arranged on the first side of the bulging part and inserted into the non-bulging part, the first embodiment uses two clamp tube walls 131 and 132 with different arc sizes to surround the non-bulging part 113 or the outer tube 150 of its outer layer and splice to form the bolt clamp tube 130. The bolt clamp tube 130 is directly inserted into the non-bulging part 113 or the outer tube 150 of its outer layer and is located on the first side of the bulging part, and does not need to pass through the bulging part 112 to be arranged on the first side of the bulging part.

[0368] In the tenth embodiment, the bolt clamp tube 1030 itself is a tube structure with a tube slit, and the tube slit 1034 is arranged along the direction of the bolt clamp tube, with one end extending to the first end of the bolt clamp tube 1030 and the other end extending to the second end of the bolt clamp tube 1030. Fig. 22 As shown; in this way, by stretching the tube seam 1034, the bolt clamp tube 1030 can be directly put on the external tube of the non-bulging part or its outer layer, and the bolt clamp tube 1030 can be placed on the first side of the bulging part. The bolt clamp tube 1030 does not need to pass through the bulging part to be set on the first side of the bulging part.

[0369] In the present embodiment 10, when assembling the bolt body and the bolt clamping tube on the non-bulging part to form a fastening bolt, the bolt body is first inserted from the second end of the connecting tube, through the bulging part, and onto the non-bulging part. Then, at the non-bulging part between the bolt body and the bulging part, the tube gap 1034 is opened, the bolt clamping tube 1030 is inserted onto the external tube of the non-bulging part or its outer layer, and the bolt clamping tube 1030 is installed into the bolt through hole (or the bolt body) along the connecting tube (or the non-bulging part). The bolt body clamps the bolt clamping tube 1030 through its inner wall, so that the tube gap 1034 is tightly spliced ​​to form a complete tube structure. The bolt clamping tube 1030 maintains the tube structure state, and its tube structure is stable and fixed, and forms a fastening bolt with the bolt body. When disassembling the fastening bolt, push the bolt clamp tube 1030 out of the bolt through hole (or the bolt body), open the tube slit 1034, remove the bolt clamp tube 1030 from the non-bulging part or the outer tube of the outer layer, and remove the bolt body from the second end of the connecting tube through the bulging part. The material and structure of the container body, the fastening nut, the outer tube and the bolt body of this embodiment can be referred to in the first embodiment, and will not be described here.

[0370] Embodiment 11

[0371] In the first embodiment, the bolt tube clamp 130 is formed by splicing two tube clamping walls 131 and 132 with different arc sizes. The arc of the tube clamping wall 132 is larger than the arc of the tube clamping wall 131. The tube clamping walls 131 and 132 can be spliced ​​together to form a complete tube structure (i.e., the bolt tube clamp 130).

[0372] The main difference from the first embodiment is that the bolt tube clamp 1130 in the eleventh embodiment is formed by splicing two tube clamping walls 1131 and 1132 of the same arc size, the arc of the tube clamping wall 1131 is equal to the arc of the tube clamping wall 132, and the tube clamping walls 1131 and 1132 are spliced ​​together to form a complete tube structure (i.e., the bolt tube clamp 1130). Fig.23 shown.

[0373] In the present invention, the hole diameter of the bolt clamp is smaller than the maximum outer diameter R of the bulging part, and the bolt clamp cannot pass through the bulging part from the second end of the connecting tube and onto the non-bulging part. The present invention adopts a method of splicing or embedding the clamp walls, so that each clamp wall surrounds the non-bulging part or the outer tube of its outer layer, splices or embeds to form a bolt clamp. In this way, the bolt clamp does not need to pass through the bulging part, but can be directly inserted into the non-bulging part or the outer tube of its outer layer, so as to clamp and push the bulging part pressed into the outer tube.

[0374] In the first embodiment, the outer tube surrounding the non-bulging portion or its outer layer and the two tube clamping walls 131 and 132 that are assembled to form the bolted tube clamp have arc sizes of different sizes. The arc of the tube clamping wall 131 is smaller than the arc of the tube clamping wall 132. This means that at least two sizes of tube clamping walls need to be prepared when manufacturing the container device.

[0375] In the eleventh embodiment, the two tube clamping walls 1131 and 1132 surrounding the outer tube of the non-bulging part or its outer layer and assembled to form the bolt clamping tube have the same arc size, and the tube clamping walls 1131 and 1132 are both semicircular tube walls. The tube clamping wall 1131 and the tube clamping wall 1132 are two completely identical tube walls, which means that only one specification of tube clamping wall needs to be prepared when manufacturing the container device, which will greatly save production processes and production costs in actual production. Moreover, the openings of each tube clamping wall are all semicircular arcs, which can be directly attached to the outer tube of the non-bulging part or its outer layer for assembly, and no tube clamping wall needs to be opened and put on the outer tube of the non-bulging part or its outer layer for assembly (if the two tube clamping walls are of different sizes, there must be a tube clamping wall with an arc as a major arc and a corresponding central angle greater than 180°. This tube clamping wall has a smaller opening, and when it is assembled to form the bolt clamping tube, it needs to be opened and put on the outer tube of the non-bulging part or its outer layer). The tube clamp wall provided in this embodiment is very convenient and has important significance in actual production and application. The material and structure of the container body, the fastening nut, the external tube and the bolt body of this embodiment can be referred to in the first embodiment, and will not be described in detail here.

[0376] Embodiment 12

[0377] In the first embodiment, the bolt tube clamp 130 is formed by splicing two tube clamping walls 131 and 132 with different arc sizes. The tube clamping walls 131 and 132 can be spliced ​​together to form a complete tube structure (ie, the bolt tube clamp 130).

[0378] The main difference from the first embodiment is that the bolt tube clamp 1230 in the twelfth embodiment is formed by splicing at least three tube clamping walls, the arc sizes of the tube clamping walls are not exactly the same, and the tube clamping walls spliced ​​together can just form a complete tube structure (i.e., the bolt tube clamp 1230).

[0379] In this embodiment, the bolt clamp tube 1230 is formed by splicing three clamp tube walls with arc sizes that are not completely the same. For example, the arcs of each clamp tube wall can be respectively 2 / 3 arc (corresponding to a central angle of 240°), 1 / 6 arc (corresponding to a central angle of 60°) and 1 / 6 arc (corresponding to a central angle of 60°), or respectively 1 / 2 arc (corresponding to a central angle of 180°), 1 / 3 arc (corresponding to a central angle of 120°) and 1 / 6 arc (corresponding to a central angle of 60°). Fig.24 shown.

[0380] In this embodiment, the bolt clamp tube 1230 can also be formed by splicing four clamp tube walls with arc sizes of different sizes. For example, the arcs of each clamp tube wall can be a 1 / 3 arc (corresponding to a central angle of 120°), a 1 / 6 arc (corresponding to a central angle of 60°) and two 1 / 4 arcs (corresponding to a central angle of 90°).

[0381] The number and arc size of the clamping walls assembled to form the bolt clamping tube 1230 are not limited in this embodiment or in other related examples, and can be designed according to actual application conditions; however, it should be noted that the clamping walls assembled together can just form a complete tube structure (i.e., the bolt clamping tube 1230). The materials and structures of the container body, the fastening nut, the external tube, and the bolt body of this embodiment can be referred to in the first embodiment, and will not be described in detail here.

[0382] According to the above deformation method, further expansion can be made as follows:

[0383] In this extended embodiment, the bolt clamp tube is formed by splicing at least three tube clamp walls, the arc sizes of each tube clamp wall are exactly the same, and the tube clamp walls spliced ​​together can just form a complete tube structure (ie, bolt clamp tube).

[0384] In this extended embodiment, the bolt clamp can be formed by splicing three 1 / 3 arc clamp walls, or by splicing four 1 / 4 arc clamp walls. The number of clamp walls spliced ​​to form the bolt clamp is not limited in this extended embodiment or in other related examples, and can be designed according to actual application conditions. The beneficial effects of this extended embodiment can refer to the corresponding contents in the above-mentioned embodiment eleven, and will not be repeated here.

[0385] Embodiment 13

[0386] In the first embodiment, the bolted tube clamp 130 is formed by splicing two tube clamping walls 131 and 132. The abutting surface of the tube clamping wall 131 is tightly abutted with the abutting surface of the tube clamping wall 132 at each adjacent position, thereby forming a complete tube structure (ie, the bolted tube clamp 130).

[0387] The main difference from the first embodiment is that the bolt tube clamp in the thirteenth embodiment has a first positioning structure for positioning two adjacent tube clamping walls so that the two ends of the two adjacent tube clamping walls are aligned; the first positioning structure includes a positioning pin arranged on the side of one adjacent tube clamping wall and a positioning groove arranged on the side of another adjacent tube clamping wall.

[0388] In the first embodiment, the bolt clamping tube 130 formed by the clamping tube wall 131 and the clamping tube wall 132 has two adjacent parts, wherein the side surface 131a of one adjacent part is tightly spliced ​​with the side surface 132a, and the side surface 131b of the other adjacent part is tightly spliced ​​with the side surface 132b. In the first embodiment, when the two clamping tube walls 131 and 132 are spliced ​​around the non-bulging part or the outer tube of the outer layer or the process of being spliced ​​and installed into the bolt through hole, the adjacent clamping tube walls are prone to relative slippage and unevenness of the two ends, such as Fig.25 As shown in Figure (1); if the bolt clamp end is not formed neatly, the clamping and pressing function of the first clamping portion (i.e., the second end of the bolt clamp) on the bulging portion pressed into the external tube will be greatly affected, and the bulging portion and the external tube outside it will be subjected to uneven forces in the circumferential direction, and the connection and sealing effect between the connecting tube and the external tube will be affected; for a bolt clamp composed of multiple clamping walls, the above situation will be more prominent and obvious during use and cannot be ignored.

[0389] In the thirteenth embodiment, the bolt tube clamp 1330 is formed by splicing two tube clamp walls 1331 and 1332, wherein the tube clamp wall 1331 has side surfaces 1331a and 1331b, and the tube clamp wall 1332 has side surfaces 1332a and 1332b. In order to prevent the adjacent tube clamp walls from sliding relative to each other and the two ends from being uneven when spliced ​​together, and to ensure that the formed bolt tube clamp port is neat, in the present embodiment, a positioning groove is provided at the middle position of the side surface 1331a of the tube clamp wall 1331 as a first positioning structure, a positioning pin is provided at the middle position of the side surface 1332a of the tube clamp wall 1332 as a corresponding first positioning structure to cooperate therewith, positioning pins are provided at both ends of the side surface 1331b of the tube clamp wall 1331 as a first positioning structure, and positioning grooves are provided at both ends of the side surface 1332b of the tube clamp wall 1332 as a corresponding first positioning structure to cooperate therewith, such as Fig.25 As shown in Figure (2).

[0390] When the tube clamping walls 1331 and 1332 are assembled, the positioning pin at one adjacent part of the nut clamping tube 1330 and the middle position of the side 1332a is nailed into the positioning groove at the corresponding position of the side 1331a, and the positioning pins at the other adjacent part of the nut clamping tube 1330 and the two end positions of the side 1331b are nailed into the positioning grooves at the corresponding positions of the side 1332b respectively. When the adjacent tube clamping walls 1331 and 1332 are assembled together, the two ends are aligned and will not slide relative to each other. The bolt clamping tube port formed by the assembly is neat, which ensures the connection and sealing effect between the connecting tube and the external tube. The materials and structures of the container body, the fastening nut, the external tube and the bolt body of this embodiment can be referred to in the first embodiment, and will not be repeated here.

[0391] In this embodiment, three or more first positioning structures can be set on the side of the tube clamp wall. The first positioning structure can be set at any position of the side (not limited to the middle position and both ends), and the shape of the positioning groove or positioning pin can be designed to be circular, triangular or other shapes; this embodiment does not limit the number, position and shape of the first positioning structure on the side of the tube clamp wall, nor is it limited to other related examples, and can be designed according to actual application conditions; it should be noted that at the adjacent part of the bolt clamp, the setting position, number and shape of the positioning pins on the side of one adjacent tube clamp wall should match the setting position, number and shape of the positioning groove on the side of another adjacent tube clamp wall.

[0392] This embodiment positions adjacent tube clamping walls by providing a first positioning structure on the side of the tube clamping wall, thereby improving the splicing efficiency of the bolted tube clamping walls, ensuring the splicing quality, and having a good application effect.

[0393] Embodiment 14

[0394] In the first embodiment, the inner wall of the first clamping portion 133 is a cylindrical curved surface, and the first clamping portion 133 clamps and pushes the bulging portion of the external tube by clamping the bulging portion at the first pressure-bearing surface of the bulging portion through its inner edge 133o.

[0395] The main difference from Example 1 is that in this Example 14, the inner wall of the first clamping part is designed with a conical surface, and the conical surface can fit with the first pressure-bearing surface of the bulge part. The first clamping part clamps and pushes the bulge part into the external tube by clamping on the first pressure-bearing surface of the bulge part through its conical surface.

[0396] In the first embodiment, the first clamping portion 133 is the second end of the bolt clamping tube, and the inner wall 133i of the first clamping portion 133 is a tubular curved surface or a cylindrical curved surface, such as Fig.26 As shown in (1), the inner diameter of the bolt clamp tube 130 is less than the second composite outer diameter R2 (which means that the inner diameter of the first clamping portion 133 is less than the second composite outer diameter R2). Therefore, when the fastening bolt and the fastening nut are screwed, only the inner edge 133o of the inner wall of the first clamping portion 133 will be stuck on the first pressure-bearing surface 112a of the bulging portion to clamp and push the bulging portion of the external tube. This means that the external tube outside the bulging portion is subjected to force only at the portion pushed by the inner edge 133o (which portion is only a circle). In the first embodiment, the force-bearing area of ​​the external tube at the first clamping portion is very limited.

[0397] In this embodiment, the first clamp 1433 is still the second end of the bolt clamp tube, but the inner wall 1433i of the first clamp 1433 is designed with a conical surface, and the conical surface can fit with the first pressure-bearing surface of the bulging part. Fig.26As shown in (2), the inner diameter of the bolt clamp tube 1430 is less than the second composite outer diameter R2 (meaning that the inner diameter of the first clamping portion 1433 and its conical surface is less than the second composite outer diameter R2). This allows, when the fastening bolt and the fastening nut are screwed, the conical surface of the first clamping portion 1433 will be stuck on the first pressure-bearing surface of the bulge to clamp and push the bulge into the external tube. This means that the external tube outside the bulge, whose force-bearing position is the part pushed by the conical surface (this part is a conical surface), the force-bearing area of ​​the external tube at the first clamping portion in this embodiment is greatly expanded.

[0398] Under the condition that the clamping and pushing forces of the first clamping part are the same, the stress area of ​​the external tube at the first clamping part in the first embodiment is limited, so the pressure on the stress-bearing part is large, and the difference from the stress-free part is large, and the stress-bearing part of the external tube is prone to deformation, damage and aging. In this embodiment, the stress-bearing area of ​​the external tube at the first clamping part is large, so the pressure on the stress-bearing part is small, and the difference from the stress-free part is small, so it is not easy to have the above-mentioned deformation, damage, aging and other situations. In this embodiment, a conical surface that can fit with the first pressure-bearing surface of the bulging part is designed on the inner wall of the first clamping part, so that the external tube at the first clamping part is protected, effectively improving the situation of excessive local stress of the pipe fitting and damage to the pipe fitting, which is of great benefit to improving the connection and sealing effect of the connecting pipe and the external pipe.

[0399] Based on the above, the present invention also provides a modified example, which is as follows:

[0400] The main difference from the first embodiment is that in this modified embodiment, the inner wall of the second clamping portion is designed with a conical surface, and the conical surface can fit with the second pressure-bearing surface of the bulging portion. The second clamping portion is clamped and pushed into the bulging portion of the external tube by clamping on the second pressure-bearing surface of the bulging portion through its conical surface.

[0401] Similar to the configuration of the first clamping portion 133, in the first embodiment, the second clamping portion 141 is a circular ring structure, and its inner wall 141i is a tubular curved surface or a cylindrical curved surface, such as Fig. 27 As shown in (1), the inner diameter of the second clamping portion 141 is less than the second composite outer diameter R2. Therefore, when the fastening bolt and the fastening nut 140 are screwed and tightened, only the inner edge 141o of the inner wall of the second clamping portion 141 will be stuck on the second pressure-bearing surface of the bulging portion to clamp and push the bulging portion pressed into the external tube. This means that the external tube outside the bulging portion is subjected to force only at the portion pushed by the inner edge 141o (the portion is only a circle). In Example 1, the force-bearing area of ​​the external tube at the second clamping portion is very limited.

[0402] In this variant embodiment, the second clamping portion 1441 is still a circular ring structure, but the inner wall of the second clamping portion 1441 is designed with a conical surface, and the conical surface can fit with the second pressure-bearing surface of the bulging portion. Fig. 27 As shown in (2), the inner diameter of the second clamping portion 1441 is less than the second composite outer diameter R2 (meaning that the inner diameter of the conical surface is less than the second composite outer diameter R2). This allows, when the fastening bolt and the fastening nut are screwed, the conical surface of the second clamping portion 1441 will be stuck on the second pressure-bearing surface of the bulge to clamp and push the bulge pressed into the external tube. This means that the external tube outside the bulge, whose force-bearing position is the part pushed by the conical surface (this part is a conical surface), the force-bearing area of ​​the external tube at the second clamping portion in this modified embodiment is greatly expanded.

[0403] Under the condition that the clamping and pushing forces of the second clamping part are the same, the stress area of ​​the external tube at the second clamping part in the first embodiment is limited, so the pressure on the stress-bearing part is large, and the difference from the stress-free part is large, and the stress-bearing part of the external tube is prone to deformation, damage and aging. In this embodiment, the stress-bearing area of ​​the external tube at the second clamping part is large, so the pressure on the stress-bearing part is small, and the difference from the stress-free part is small, so it is not easy to deform, damage, aging and other situations mentioned above. In this embodiment, a conical surface that can fit with the second pressure-bearing surface of the bulging part is designed on the inner wall of the second clamping part, so that the external tube at the second clamping part is protected, effectively improving the situation of excessive local stress of the pipe fitting and damage to the pipe fitting, which is of great benefit to improving the connection and sealing effect of the connecting pipe and the external pipe.

[0404] According to the above deformation method, further expansion can be made as follows:

[0405] The main difference from the first embodiment is that: this expanded embodiment is designed with conical surfaces on the inner walls of the first clamping part and the second clamping part, and the conical surfaces can fit with the corresponding pressure-bearing surfaces of the bulge parts; in this way, when the fastening bolts and the fastening nuts are screwed, the conical surface of the first clamping part on the first side of the bulge part will be stuck at the first pressure-bearing surface of the bulge part to clamp and push the bulge part into the external tube; the conical surface of the second clamping part on the second side of the bulge part will be stuck at the second pressure-bearing surface of the bulge part to clamp and push the bulge part into the external tube; the inner diameters of the first clamping part and the second clamping part are both smaller than the second composite outer diameter R2, and neither the first clamping part nor the second clamping part can allow the bulge part 112 to pass through, and the bulge part 112 is clamped and fixed between the first clamping part and the second clamping part.

[0406] The explanation of the conical curved surface clamping and pushing the bulge of the first clamping part and the second clamping part can be found in the above two embodiments, and this extended embodiment will not be repeated here. In this extended embodiment, the inner walls of the first clamping part and the second clamping part are designed with conical curved surfaces that can fit with the pressure-bearing surfaces of the corresponding bulges, which protect the external pipe parts of the first clamping part and the second clamping part at the same time, have the effect of extending the service life of the pipe fittings, can simultaneously improve the sealing stability of the first clamping part and the second clamping part, and ensure the balance of the clamping and pushing forces on both sides of the bulge, which is of great significance to the safety and stability of the connection between the connecting pipe and the external pipe.

[0407] Embodiment 15

[0408] For the first embodiment, the inner diameter of the bolt clamp tube 130 is less than the second composite outer diameter R2. Therefore, the second end of the bolt clamp tube 130 can be used as the first clamping portion 133, and the bulging portion of the external tube can be clamped and pushed by the second end of the bolt clamp tube 130.

[0409] The main difference from the first embodiment is that the first clamping portion in the fifteenth embodiment is a circular ring structure arranged in the bolt clamp tube, and the circular ring structure is arranged along the circumferential direction on the inner wall of the second end of the bolt clamp tube, and the inner diameter of the circular ring structure is less than the second composite outer diameter R2; therefore, the circular ring structure can be used as the first clamping portion, and the bulging portion of the external tube can be clamped and pushed through the circular ring structure.

[0410] In the first embodiment, the inner diameter of the bolt clamp tube 130 is less than the second composite outer diameter R2 (the second composite outer diameter R2 = the maximum outer diameter R of the bulging portion + the wall thickness d of the external tube). Therefore, the bolt clamp tube 130 inserted on the non-bulging portion cannot pass through the bulging portion with the outer layer coated with the external tube (i.e., the bulging portion pressed into the external tube). The second end close to the bulging portion, specifically the inner edge of the second end, will be stuck at the first pressure-bearing surface of the bulging portion. When the fastening bolt and the fastening nut are screwed, the second end of the bolt clamp tube can be directly used as the first clamping portion to clamp and push the bulging portion of the external tube, without the need to set an additional structure on the bolt clamp tube as the first clamping portion to realize the function of clamping and pushing the bulging portion; the inner diameter of the first clamping portion 133 = the inner diameter of the bolt clamp tube 130.

[0411] Embodiment 1 The second end of the bolt clamp is used to clamp and push the bulging portion of the external tube. Therefore, it has requirements and restrictions on the inner diameter of the bolt clamp, and the inner diameter of the bolt clamp is required to be less than the second composite outer diameter R2. If the inner diameter of the bolt clamp is greater than or equal to the second composite outer diameter R2, this type of bolt clamp can pass through the bulging portion of the external tube covered with the outer layer (i.e., the bulging portion pressed into the external tube), and its second end cannot serve as the first clamping portion to clamp and push the bulging portion pressed into the external tube.

[0412] In order to solve the above problem, even if the inner diameter of the bolt clamp tube is greater than or equal to the second composite outer diameter R2, the bolt clamp tube can still clamp and push the bulging portion of the outer tube. In this embodiment, a circular ring structure is provided in the bolt clamp tube as the first clamping portion 1533, such as Fig.28 shown.

[0413] In this embodiment, the annular structure is arranged on the inner wall of the second end of the bolt clamp tube along the circumferential direction, so the inner diameter of the first clamping portion 1533 is smaller than the inner diameter of the bolt clamp tube 1530; at the same time, the inner diameter of the annular structure is smaller than the second composite outer diameter R2, so the annular structure can serve as the first clamping portion 1533. When the fastening bolt and the fastening nut are screwed tight, the bolt clamp tube sleeved on the non-bulging portion and the first clamping portion 1533 inside thereof cannot pass through the bulging portion coated with the outer layer of the external tube (i.e., the bulging portion pressed into the external tube). The first clamping portion 1533 will be stuck at the first pressure-bearing surface of the bulging portion to clamp and push the bulging portion pressed into the external tube. Fig.28 shown.

[0414] In this embodiment, for the bolt clamp formed by splicing the clamp walls, the inner wall of the second end of each clamp wall is provided with its corresponding first clamping portion, and the clamp wall and its corresponding first clamping portion can be prepared as one piece; while each tube wall surrounds the non-bulging portion or the outer tube of its outer layer and is spliced ​​to form a bolt clamp, a complete first clamping portion is also formed inside the bolt clamp, and the first clamping portion is arranged around the non-bulging portion or the outer tube of its outer layer.

[0415] It should be noted that, in the present invention, the inner diameter of the first clamping portion 1533 should also be greater than or equal to the first composite outer diameter R1, that is, the inner diameter of the first clamping portion ≥ the first composite outer diameter R1 (the first composite outer diameter R1 = the outer diameter of the non-bulging portion r + the thickness of the outer tube wall d). In this way, each clamping tube wall can surround the non-bulging portion or the outer layer of the external tube, and be spliced ​​or embedded to form a complete tube structure with adjacent clamping tube wall sides tightly fitting together, and uniformly clamp and push the bulging portion of the external tube in the circumferential direction.

[0416] In this embodiment, a circular ring structure is provided on the inner wall of the second end of the bolt clamp tube as the first clamping portion, so that even if the inner diameter of the bolt clamp tube is greater than or equal to the second composite outer diameter R2, the bolt clamp tube can still clamp and push into the bulging portion of the external tube, thereby improving the adaptability of the bolt clamp tube.

[0417] Embodiment 16

[0418] For the above-mentioned embodiment 1, the outer diameter of the bolt clamp tube 130 is equal to the hole diameter of the bolt through hole 123; therefore, the bolt body 120 can tighten the assembled bolt clamp tube 130 through its inner wall (or the bolt through hole 123 can tighten the assembled bolt clamp tube 130 through its hole wall), so that the bolt clamp tube maintains a tube structure state.

[0419] The main difference from Example 1 is that in this Example 16, the outer diameter of the bolt clamp tube is less than the hole diameter of the bolt through hole, and a tightening structure is provided on the outer wall of the bolt clamp tube, and the outer diameter of the tightening structure is equal to the hole diameter of the bolt through hole; therefore, the bolt body can still tighten the tightening structure through its inner wall (or the bolt through hole can tighten the tightening structure through its hole wall), so that the bolt clamp tube maintains a tube structure state.

[0420] In the first embodiment, the outer diameter of the bolt clamp tube 130 is equal to the hole diameter of the bolt through hole 123. Therefore, the bolt clamp tube 130 or its clamp tube walls 131 and 132 can be inserted into the bolt through hole 123, and its outer wall is tightly fitted with the inner wall of the bolt body 120 (i.e., the hole wall of the bolt through hole). Therefore, when the bolt clamp tube 130 is placed in the bolt through hole 123, the bolt body 120 can clamp the bolt clamp tube 130 formed by the combination through its inner wall (or the bolt through hole 123 can clamp the bolt through its hole wall), so that the bolt clamp tube formed by the combination maintains the tube structure state, and its tube structure is stable and fixed without loosening. The first embodiment tightens the bolt clamp tube by the bolt body, so it has requirements and restrictions on the outer diameter of the bolt clamp tube, and the outer diameter of the bolt clamp tube needs to be equal to the hole diameter of the bolt through hole.

[0421] If the outer diameter of the bolt clamp tube is smaller than the bolt through hole diameter, the bolt clamp tube or its clamp tube wall can be inserted into the bolt through hole, but does not fit with the inner wall of the bolt body (i.e., the hole wall of the bolt through hole), and the bolt body cannot effectively clamp the bolt clamp tube formed by the assembly. In this way, the adjacent clamp tube walls do not fit together, and a gap is formed between the tube walls, resulting in uneven clamping and pushing pressure on the bulging part in the circumferential direction. When the outer diameter of the bolt clamp tube is smaller than the bolt through hole diameter, the above phenomenon will be more obvious, and its clamp tube wall may even become loose and shake in the bolt through hole, and a bolt clamp tube with a stable tube structure cannot be formed.

[0422] In order to solve the above problem, a bolt clamp tube with an outer diameter smaller than the bolt through hole diameter can be installed in the bolt through hole to maintain the tube structure state and the structure is stable and fixed. In this embodiment, a clamp structure 1634 is provided on the outer wall of the bolt clamp tube. Fig.29 shown.

[0423] In this embodiment, the clamp structure 1634 is a complete annular structure, which is arranged on the outer wall of the bolt clamp tube. The outer diameter of the clamp structure 1634 is greater than the outer diameter of the bolt clamp tube. The clamp structure 1634 is arranged at the middle position of the bolt clamp tube. Fig.29 In this embodiment, the outer diameter of the clamp structure 1634 is equal to the diameter of the bolt through hole. Therefore, the bolt clamp tube 1630 or its clamp tube wall can be inserted into the bolt through hole, and the outer wall of the clamp structure 1634 is tightly fitted with the inner wall of the bolt body (i.e., the hole wall of the bolt through hole). Fig.30When the bolt clamp tube 1630 is placed in the bolt through hole, the bolt body 1620 can clamp the clamp structure 1634 through its inner wall (or the bolt through hole can clamp the clamp structure 1634 through its hole wall), thereby clamping the assembled bolt clamp tube 1630, so that the assembled bolt clamp tube maintains the tube structure state, and the tube structure is stable and fixed without loosening.

[0424] In addition, in the first embodiment, the outer diameter of the bolt clamp tube 130 is designed to be equal to the hole diameter of the bolt through hole 123. Although the bolt body can effectively clamp the bolt clamp tube formed by the assembly, the entire outer wall of the bolt clamp tube 130 (or the clamp tube walls 131, 132) is tightly fitted with the inner wall of the bolt body 120 (i.e., the hole wall of the bolt through hole). This makes the contact area between the bolt clamp tube and the bolt body large and the friction force formed is also large. Pushing the bolt clamp tube or its clamp tube wall into or out of the bolt through hole will encounter large friction resistance and be very laborious. If the size error of the components is large or the assembly space is cramped, it will be very difficult to push the bolt clamp tube or its clamp tube wall into or out of the bolt through hole.

[0425] In the present embodiment, the outer diameter of the bolt clamp tube is less than the hole diameter of the bolt through hole, while the outer diameter of the clamp structure 1634 is equal to the hole diameter of the bolt through hole, so that the bolt body can still effectively clamp the bolt clamp tube formed by assembly, and only the outer wall of the clamp structure 1634 is tightly fitted with the inner wall of the bolt body 120 (i.e., the hole wall of the bolt through hole). In this way, the contact area between the bolt clamp tube and the bolt body is greatly reduced, and the friction force formed is naturally reduced. The friction resistance encountered when pushing the bolt clamp tube or its clamp tube wall into or out of the bolt through hole is small, so it is relatively easy and effortless to push the bolt clamp tube or its clamp tube wall into or out of the bolt through hole.

[0426] In this embodiment, the bolt clamp tube 1630 is a tube structure formed by splicing two clamp tube walls, and the outer wall of each clamp tube wall is provided with a corresponding tightening structure part, and each clamp tube wall and its corresponding tightening structure part can be prepared by integral molding. In this way, when the tube walls of the bolt clamp tube are spliced ​​together to form a complete bolt clamp tube, a complete tightening structure 1634 is also spliced ​​on the outer wall of the bolt clamp tube.

[0427] Compared with the first embodiment, this embodiment provides a tightening structure on the outer wall of the bolt clamp tube, and the outer diameter of the tightening structure is set to be equal to the hole diameter of the bolt through hole, so that the bolt clamp tube with an outer diameter smaller than the hole diameter of the bolt through hole can also maintain a spliced ​​state and a stable shape in the bolt through hole. At the same time, it also makes the operation of pushing the bolt clamp tube into or out of the bolt through hole more labor-saving and easy, which is of great significance in practical applications.

[0428] Based on the above, the present invention also provides another variation example, which is as follows:

[0429] The main difference from the above-mentioned embodiment 16 is that in this modified embodiment, the tightening structure 1634 is arranged at the second end of the bolt clamping tube.

[0430] like Fig.29 As shown in (2), the clamping structure 1634 is arranged on the outer wall of the second end of the bolt clamping tube. In this way, only when the bolt clamping tube is about to be completely pushed into the bolt through hole or just starts to be pushed out of the bolt through hole, the clamping structure 1634 moves inside the bolt through hole and fits with the inner wall of the bolt body to form friction resistance; in the other processes of pushing in or pushing out the bolt through hole, the clamping structure 1634 moves outside the bolt through hole and does not fit with the inner wall of the bolt body, so no friction resistance is formed, which makes it easier and more labor-saving to push the bolt clamping tube or its clamping tube into or out of the bolt through hole.

[0431] It should be noted that, in the present invention, the clamp structure 1634 can be arranged at any position on the outer wall of the bolt clamp tube, and even the clamp structure parts arranged on the outer wall of different clamp tube walls can be at different positions, such as Fig.29 The present invention does not limit the location of the clamp structure, nor does it limit it to other related embodiments. In practical applications, it can be designed according to needs, as long as the outer diameter of the clamp structure is equal to the diameter of the bolt through hole, so that the bolt clamp tube can be placed in the bolt through hole and can be effectively clamped by the bolt body to maintain the spliced ​​state and stabilize the shape.

[0432] Based on the above, the present invention also provides another variation example, which is as follows:

[0433] The main difference from the above-mentioned embodiment 16 is that the tightening structure 1634 in this modified embodiment is an incomplete circular ring structure and is composed of a number of discontinuous circular ring segments, such as Fig.29 As shown in (4). When the bolt clamp is placed in the bolt through hole, the outer wall of each annular segment is tightly fitted with the inner wall of the bolt body 120 (i.e., the hole wall of the bolt through hole), so that the bolt body 1620 can clamp the clamp structure 1634 through its inner wall (or the bolt through hole can clamp the clamp structure 1634 through its hole wall), thereby clamping the bolt clamp 1630 formed by the assembly, so that the bolt clamp maintains the tube structure state, and its tube structure is stable and fixed without loosening. This variant embodiment has the same technical effect as the above-mentioned embodiment 16. For details, please refer to the corresponding content of embodiment 16, which will not be repeated here.

[0434] Embodiment 17

[0435] In the first embodiment described above, a limiting portion 124 is disposed in the bolt body to support the bolt clamping tube, and the outer diameter of the bolt clamping tube 130 is equal to the hole diameter of the bolt through hole 123 .

[0436] The main difference from the first embodiment is that the fastening bolt in the seventeenth embodiment also has a second positioning structure, which cooperates with the limiting part to clamp the bolt clamping tube in the direction of the connecting tube, so that the bolt clamping tube and the bolt body move synchronously; at the same time, the bolt body can also clamp the bolt clamping tube through the second positioning structure. The second positioning structure includes a second positioning groove provided on the inner wall of the second end of the bolt body, and a second positioning protrusion provided on the outer wall of the second end of the bolt clamping tube.

[0437] In the first embodiment, the bolt clamping tube 130 (or its clamping tube walls 131, 132) is placed between the bolt body 120 and the bulging portion 112, and then inserted into the bolt through hole 123 along the non-bulging portion 113 (or the connecting tube). The bolt clamping tube 130 (or its clamping tube walls 131, 132) is actually inserted into the bolt through hole 123 (or the bolt body 120) from the second end of the bolt body 120; a limiting portion 124 is provided in the bolt body 120 to support the bolt clamping tube, so that the bolt body 120 inserted into the bolt through hole will be on the bolt body. The bolt body 120 is supported and limited by the limiting portion 124 so that it cannot come out from the first end of the bolt body. Under the support of the limiting portion 124, the bolt body 120 can drive the bolt clamping tube 130 to move synchronously with the bolt body 120 toward the second end of the non-bulging portion 113 (or the connecting tube). However, when the bolt body 120 moves toward the first end of the non-bulging portion 113 (or the connecting tube), the force exerted by the bolt body 120 on the bolt clamping tube 130 (such as the friction between the two) is limited, and the bolt clamping tube 130 may not move synchronously with the bolt body 120 and may separate.

[0438] In order to solve the above problem, when the bolt body moves toward the first end of the non-bulging portion (or the connecting tube), the bolt clamping tube can also move synchronously with it and not separate. In this embodiment, a second positioning structure is provided on the fastening bolt.

[0439] In this embodiment, the second positioning structure includes a second positioning groove 1725 disposed on the inner wall of the second end of the bolt body, and a second positioning protrusion 1735 disposed on the outer wall of the second end of the bolt clamp tube. The second positioning groove 1725 is used to accommodate the second positioning protrusion 1735. Fig.31As shown, the second positioning groove 1725 is an annular groove, and the second positioning protrusion 1735 is a continuous or discontinuous annular protrusion. When the bolt clamp tube 1730 is installed in the bolt body 1720, its first end is located on the limiting portion 1724, and the second positioning protrusion 1735 of the second end is located in the second positioning groove 1725. The second positioning groove 1725 clamps the second positioning protrusion 1735, so that when the bolt body 1720 moves toward the first end of the non-bulging part (or the connecting tube), the bolt body applies a force to the second positioning protrusion 1735 through the second positioning groove 1725, thereby driving the bolt clamp tube 1730 to move toward the first end of the non-bulging part (or the connecting tube). In the direction of the connecting tube (or non-bulging part), the bolt body clamps the bolt clamping tube 1730 through its limiting portion 1724 and the second positioning groove 1725, so that the bolt body 1720 and the bolt clamping tube 1730 are combined into one. When the bolt body moves on the connecting tube, whether it moves toward the first end of the connecting tube or toward the second end, the bolt body 1720 can drive the bolt clamping tube 1730 to move synchronously without separation.

[0440] In addition, in this embodiment, the bolt body can also tighten the bolt clamp tube through the second positioning structure. The shape and size of the second positioning groove 1725 match the second positioning protrusion 1735, and the maximum outer diameter of the second positioning protrusion 1735 is equal to the maximum inner diameter of the second positioning groove 1725. In this way, when the second positioning protrusion 1735 is located in the second positioning groove 1725, the bolt body 1720 can tighten the second positioning protrusion 1735 through its second positioning groove 1725, thereby tightening the bolt clamp tube 1730 formed by the splicing, so that the bolt clamp tube formed by the splicing maintains the tube structure state, and its tube structure is stable and fixed without loosening.

[0441] In the first embodiment, the outer diameter of the bolt clamp tube 130 is limited to the hole diameter of the bolt through hole 123, so that the bolt body 120 can tighten the bolt clamp tube 130 formed by the assembly through its inner wall (or the bolt through hole 123 can tighten the bolt clamp tube 130 through its hole wall), so that the bolt clamp tube remains in the assembled state in the bolt through hole; while in this embodiment, the maximum outer diameter of the second positioning protrusion 1735 is designed to be equal to the maximum inner diameter of the second positioning groove 1725, and the bolt body 1720 tightens the bolt clamp tube 1730 formed by the assembly through its second positioning groove 1725, so that the bolt clamp tube remains in the assembled state in the bolt through hole; in this embodiment, the outer diameter of the bolt clamp tube 1730 is equal to the hole diameter of the bolt through hole, or smaller than the hole diameter of the bolt through hole, and it can be combined with the bolt body to form a tightening bolt. The outer diameter restriction of the bolt clamp tube in this embodiment is more relaxed. This embodiment improves the mutually restrictive relationship between the bolt through hole diameter and the bolt clamp tube outer diameter, expands the applicable bolt clamp tube range, improves the adaptability of the bolt clamp tube and the bolt body, and has good application prospects.

[0442] It should be noted that when the outer diameter of the bolt clamp tube 1730 is less than the diameter of the bolt through hole, the second positioning structure in this embodiment can replace the tightening structure 1634 in the sixteenth embodiment. Compared with the tightening structure 1634 in the sixteenth embodiment, the second positioning structure in this embodiment can not only tighten the bolt clamp tube 1730, but also cooperate with the limiting part to clamp the bolt clamp tube in the direction of the connecting tube, so that the bolt clamp tube and the bolt body move synchronously and do not separate.

[0443] In this embodiment, the ring cross-section of the second positioning groove 1725 and the second positioning protrusion 1735 is arc-shaped. Fig.31 As shown, the arc-shaped ring body is relatively smooth, so it is relatively easy for the second positioning protrusion 1735 to be pushed into or out of the second positioning groove 1725.

[0444] Embodiment 18

[0445] For the above-mentioned embodiment 1, the outer diameter of the bolt clamp tube 130 is equal to the hole diameter of the bolt through hole 123. Therefore, the bolt body 120 can tighten the assembled bolt clamp tube 130 through its inner wall (or the bolt through hole 123 can tighten the assembled bolt clamp tube 130 through its hole wall) to keep the bolt clamp tube in a tube structure state.

[0446] The main difference from the first embodiment is that: in the eighteenth embodiment, each tube clamping wall is provided with a concave-convex structure; at each adjacent part of the bolt clamping tube, the concave-convex structures of the adjacent tube clamping walls are interlocked with each other and form a complete tube wall at the interlocking part; at the same time, the concave-convex structures of the adjacent tube clamping walls are also interlocked or hooked with each other, so that the adjacent tube clamping walls are connected and the bolt clamping tube maintains a tube structure state. In this embodiment, at each adjacent part of the bolt clamping tube, the concave-convex structure of one adjacent tube clamping wall is a groove opened on the side, the groove extends along the direction where the bolt clamping tube is located, and the extension length is equal to the tube length of the bolt clamping tube, and the concave-convex structure of the other adjacent tube clamping wall is a convex block set on the side, the convex block extends along the direction where the bolt clamping tube is located, and the extension length is equal to the tube length of the bolt clamping tube.

[0447] This article has clearly pointed out in the implementation sixteen: in the first embodiment, the outer diameter of the bolt clamp tube 130 is equal to the hole diameter of the bolt through hole 123, so the bolt clamp tube 130 or its clamp tube walls 131, 132 can be inserted into the bolt through hole 123, and its outer wall is tightly fitted with the inner wall of the bolt body 120 (i.e., the hole wall of the bolt through hole), so when the bolt clamp tube 130 is placed in the bolt through hole 123, the bolt body 120 can tighten the bolt clamp tube 130 formed by the assembly through its inner wall (or the bolt through hole 123 can tighten the bolt clamp tube 130 through its hole wall), so that the bolt clamp tube formed by the assembly maintains the tube structure state, and its tube structure is stable and fixed without loosening. The first embodiment tightens the bolt clamp tube by the bolt body, so it has requirements and restrictions on the outer diameter of the bolt clamp tube, and requires the outer diameter of the bolt clamp tube to be equal to the hole diameter of the bolt through hole.

[0448] If the outer diameter of the bolt clamp tube is smaller than the bolt through hole diameter, although the bolt clamp tube or its clamp tube wall can be inserted into the bolt through hole, it does not fit with the inner wall of the bolt body (i.e., the hole wall of the bolt through hole), and the bolt body cannot effectively clamp the bolt clamp tube formed by the assembly. In this way, the adjacent clamp tube walls do not fit together, and a gap is formed between the tube walls, resulting in uneven clamping and pushing pressure on the bulging part in the circumferential direction; when the outer diameter of the bolt clamp tube is smaller than the bolt through hole diameter, the above phenomenon will be more obvious, and its clamp tube wall may even become loose and shake in the bolt through hole, and a bolt clamp tube with a stable structure cannot be formed.

[0449] In order to solve the above problems, the bolt clamp tube (including the bolt clamp tube with an outer diameter less than or equal to the hole diameter of the bolt through hole) inserted into the bolt through hole maintains the tube structure state and the structure is stable and fixed. This embodiment provides a new technical solution. In this embodiment, a concave-convex structure is provided on each tube clamp wall. At each adjacent part of the bolt clamp tube, the concave-convex structures of adjacent tube clamp walls are interlocked and form a complete tube wall at the interlocking part. At the same time, the concave-convex structures of adjacent tube clamp walls are also interlocked or hooked with each other, so that a connection is formed between the adjacent tube clamp walls, so that the bolt clamp tube maintains the tube structure state.

[0450] In this embodiment, the bolt tube clamp 1830 is a tube structure formed by the mutual engagement of the tube clamp walls 1831 and 1832; wherein, grooves 1836 are provided on both sides of the tube clamp wall 1832 as a concave-convex structure, and protrusions 1837 are provided on both sides of the tube clamp wall 1831 as a concave-convex structure; at each adjacent portion of the bolt tube clamp, the protrusion 1837 of the tube clamp wall 1831 is embedded in the groove 1836 of the tube clamp wall 1832, and the protrusion 1837 and the groove 1836 form a complete tube wall at the engagement portion (referring to the position where the protrusion is embedded in the groove, which belongs to or is located at the adjacent portion), and at the same time, the protrusion 1837 and the groove 1836 also bite each other, so that the adjacent tube clamp walls 1831 and 1832 are connected at the adjacent portion, so that the bolt tube clamp 1830 maintains a tube structure state.

[0451] Specifically, a protrusion 1837 is provided on each side of the tube clamping wall 1831, and the protrusion 1837 on each side extends along the direction of the bolt clamping tube, extending from one end of the tube clamping wall to the other end thereof, and the extension length of each protrusion 1837 is equal to the tube length of the tube clamping wall 1831 or the bolt clamping tube 1830. Each protrusion 1837 is formed by protruding outward from the tube wall along the circumferential direction of the tube wall from its side; each protrusion has a head 1837g and a tail 1837h, and the part of the protrusion connected to the side is the tail 1837h, and the rest of the part is the head 1837g, and the head 1837g of the protrusion is larger than the tail 1837h, as shown in FIG. Fig.32 shown.

[0452] A groove 1836 is formed on each side of the tube clamping wall 1832, and the groove 1836 on each side extends along the direction of the tube clamping bolt, from one end of the tube clamping wall to the other end thereof, and the extension length of each groove 1836 is equal to the tube length of the tube clamping wall 1832 or the tube clamping bolt 1830. Each groove 1836 is formed by being recessed from its side along the circumferential direction of the tube wall; each groove has a notch 1836e and a groove bottom 1836d, wherein the groove has a portion close to the side as the notch 1836e (the notch faces the side), and the remaining portion as the groove bottom 1836d (the groove bottom is away from the side), and the groove bottom 1836d of the groove is larger than the notch 1836e, such as Fig.32 As shown; the groove walls on both sides of each groove are the inner wall and outer wall of the tube clamping wall. Each groove also has two ports 1836f; in this embodiment, each groove 1836 extends from one end of the tube clamping wall to the other end along the direction where the bolt clamps the tube, so the groove 1836 is formed with ports 1836f at both ends of the tube clamping wall, and the protrusion 1837 can be embedded in the groove 1833 from the port 1836f of the groove, and the two ends of the tube clamping walls 1831 and 1832 can be aligned when they are embedded, as shown in FIG. Fig.32 As shown in the figure.

[0453] The groove 1936 is formed with ports 1936f on the inner wall and the outer wall of the clamp tube wall.

[0454] The shape and size of the projection 1837 match the groove 1836 in which it is embedded. At each adjacent position of the bolt clamp tube 1830, the projection 1837 of the clamp tube wall 1831 is embedded in the groove 1833 of the clamp tube wall 1832. The projection 1837 and the groove 1836 form a complete tube wall at the fitting position. The head 1837g of the projection is located at the groove bottom 1836d, and the tail 1837h is located at the notch 1836e. The head 1837g of the projection is larger than the tail 1837h, that is, the head 1837g of the projection is larger than the tail 1837h. The notch 1836e of the groove, therefore, when the protrusion 1837 is embedded in the groove 1833 from the port 1836f of the groove, the head 1837g of the protrusion will be stuck at the notch 1836e of the groove and cannot pass through the notch 1836e. In this way, the protrusion 1837 and the groove 1836 are engaged with each other along the circumferential direction of the tube wall, and the adjacent tube clamping walls 1831 and 1832 are connected at the adjacent parts, so that the bolt clamping tube formed by the mosaic maintains the tube structure state, and its tube structure is stable and fixed without loosening.

[0455] The shape of the protrusion 1837 and the groove 1836 engaged therewith is a cross-sectional shape perpendicular to the extension direction thereof. In this embodiment, the shape of the protrusion 1837 and the groove 1836 engaged therewith is also the shape presented at the end of the bolt clamp tube. In this embodiment, the shape of the protrusion 1837 and the groove 1836 engaged therewith is a convex shape, such as Fig.33As shown in (1); it should be noted that, in this embodiment, the shape of the protrusion 1837 and the groove 1836 engaged therewith can also be designed to be other shapes, including but not limited to arc shape, trapezoid, pentagon, hexagon, deformation of trapezoid, racket shape (also called deformation of arc shape), petal shape (also called cat claw shape or deformation of arc shape), Christmas tree shape (also called deformation of triangle or arrow shape), etc. Fig.33 As shown in (2)-(9) in the figure. In this embodiment, at least a portion of the head of the projection is larger than its tail, and correspondingly, at least a portion of the bottom of the groove is larger than its notch, so that the groove clamps the head of the projection through its notch, so that the projection and the groove form a complete tube wall at the joint and also bite each other, so that the adjacent tube walls at the joint are connected; this embodiment does not limit the specific shape of the groove (or projection), nor is it limited to other related embodiments.

[0456] This embodiment sets a convex block and a concave-convex structure on the side of the tube clamp wall so that the adjacent tube clamp walls can be interlocked at the interlocking position to form a complete tube wall and at the same time bite each other to form a connection, so that the bolt clamp formed by the interlocking can maintain the tube structure state and the structure is stable and fixed without the need for the tightening effect of the bolt body. Therefore, this embodiment has relatively loose requirements on the outer diameter of the bolt clamp tube. The outer diameter of the bolt clamp tube 1730 is equal to or less than the aperture of the bolt through hole, and it can be used in conjunction with the bolt body. This embodiment improves the relationship between the mutually restrictive and limiting relationship between the aperture of the bolt through hole and the outer diameter of the bolt clamp tube, expands the applicable range of bolt clamp tubes, improves the adaptability of the bolt clamp tube and the bolt body, and has good application prospects.

[0457] Based on the above, the present invention further provides a modified example, which is as follows:

[0458] The main difference from the above-mentioned embodiment 18 is that in this modified embodiment, a groove 1836 is provided on one side of the tube clamping wall 1831 as a concave-convex structure, and a protrusion 1837 is provided on the other side as a concave-convex structure; similarly, a groove 1836 is provided on one side of the tube clamping wall 1832 as a concave-convex structure, and a protrusion 1837 is provided on the other side as a concave-convex structure. Fig.34 As shown in (1).

[0459] At one adjacent portion of the bolt clamping tube 1830, the protrusion 1837 of the clamping tube wall 1831 is embedded in the groove 1836 of the clamping tube wall 1832; at another adjacent portion of the bolt clamping tube 1830, the protrusion 1837 of the clamping tube wall 1832 is embedded in the groove 1836 of the clamping tube wall 1831. This variant embodiment has the same technical effect as the above embodiment, and will not be described again herein.

[0460] Based on the above, the present invention also provides another variation example, which is as follows:

[0461] The main difference from the above-mentioned embodiment 18 is that in this variant embodiment, on each side of the tube clamping wall 1831, a plurality of protrusions 1837 are distributed along the direction where the bolt clamps the tube. The length of each protrusion 1837 is less than the tube length of the bolt clamping tube. The protrusions 1837 are not connected. This variant embodiment does not limit the number and length of the protrusions on each side, nor does it limit it to other related examples. In actual applications, it can be designed according to needs. In this variant embodiment, the protrusions 1837 are set at the second end of the bolt clamping tube to ensure that a complete tube wall is formed at the second end of the bolt clamping tube, so that the second end of the bolt clamping tube serves as the first clamping part, providing uniform clamping and pushing force in the circumferential direction for the bulging part pressed into the external tube, such as Fig.34 As shown in (2).

[0462] It should be noted that, in this modified embodiment, the tube clamping wall 1831 can also have a protrusion 1837 on one side extending from one end of the tube clamping wall to the other end thereof along the direction where the bolt clamping tube is located, and the same length as the tube clamping wall 1832 or the bolt clamping tube 1830, and a plurality of protrusions 1837 are distributed on the other side along the direction where the bolt clamping tube is located, and a protrusion 1837 is arranged at the second end of the bolt clamping tube, such as Fig.34 This variant embodiment can achieve the same technical effect as the above embodiment, and will not be described again in this article.

[0463] Embodiment 19

[0464] For the above-mentioned embodiment 18, at each adjacent part of the bolt clamp tube, the concave-convex structure of one adjacent clamp tube wall is a groove opened on the side, the groove extends along the direction where the bolt clamp tube is located, and the extension length is equal to the length of the bolt clamp tube, and the concave-convex structure of the other adjacent clamp tube wall is a convex block set on the side, the convex block extends along the direction where the bolt clamp tube is located, and the extension length is equal to the length of the bolt clamp tube.

[0465] The main difference from the eighteenth embodiment is that in the nineteenth embodiment, at each adjacent part of the bolt clamping tube, the concave-convex structure of one adjacent tube clamping wall is a plurality of grooves opened on the side surface, the plurality of grooves are distributed along the direction where the bolt clamps the tube, each groove extends along the direction where the tube diameter is located, and penetrates the tube wall; the concave-convex structure of another adjacent tube clamping wall is a plurality of protrusions arranged on the side surface, the plurality of protrusions are distributed along the direction where the bolt clamps the tube, each protrusion extends along the direction where the tube diameter is located, and the extension length is equal to the tube wall thickness.

[0466] In order to solve the problem described in Example 18, this embodiment provides a new technical solution to enable the bolt clamp tube (including a bolt clamp tube with an outer diameter less than or equal to the hole diameter of the bolt through hole) inserted into the bolt through hole to maintain a tube structure state and a stable and fixed structure. This technical solution is different from the technical solution of Example 18.

[0467] In this embodiment, the bolt tube clamp 1930 is a tube structure formed by the mutual engagement of tube clamp walls 1931 and 1932; wherein, a plurality of grooves 1936 are provided on both sides of the tube clamp wall 1932 as a concave-convex structure, and a plurality of protrusions 1937 are provided on both sides of the tube clamp wall 1931 as a concave-convex structure; at the adjacent portion of the bolt tube clamp, the protrusions 1937 on one side of the tube clamp wall 1931 are respectively embedded in the grooves 1936 at the corresponding positions on one side of the tube clamp wall 1932, and each protrusion 1937 and the corresponding groove 1936 form a complete tube wall at the engagement portion, and at the same time, the protrusion 1937 and the groove 1936 are engaged with each other, so that the adjacent tube clamp walls 1931 and 1932 are connected at the adjacent portion, so that the bolt tube clamp 1930 maintains a tube structure state.

[0468] Specifically, a plurality of protrusions 1937 are respectively provided on each side of the tube clamping wall 1931, and the protrusions 1937 on each side are distributed along the direction where the bolt clamps the tube; each protrusion 1937 extends along the direction where the tube diameter is located, and its extension length is equal to the thickness of the tube wall, that is, each protrusion 1937 extends from the outer wall of the tube clamping wall to the inner wall (or from the inner wall of the tube clamping wall to the outer wall) along the direction where the tube diameter is located. Each protrusion 1937 is formed by protruding outward from the tube wall along the circumferential direction where the tube wall is located from its side; each protrusion has a head 1937g and a tail 1937h, and the part of the protrusion connected to the side is the tail 1937h, and the rest of the part is the head 1937g, and the head 1937g of the protrusion is larger than the tail 1937h, as shown in FIG. Fig.35 shown.

[0469] A plurality of grooves 1936 are respectively provided on each side of the tube clamping wall 1932, and the grooves 1936 on each side are distributed along the direction of the bolt clamping the tube; each groove 1936 extends along the direction of the tube diameter and penetrates the tube wall (or its extension length is equal to the tube wall thickness), that is, each groove 1936 extends from the outer wall of the tube clamping wall to the inner wall (or from the inner wall of the tube clamping wall to the outer wall) along the direction of the tube diameter. Each groove 1936 is formed by being recessed from its side into the tube wall along the circumferential direction of the tube wall; each groove has a notch 1936e and a groove bottom 1936d, wherein the groove has a portion close to the side as the notch 1936e (the notch faces the side), and the remaining portion as the groove bottom 1936d (the groove bottom is away from the side), and the groove bottom 1936d of the groove is larger than the notch 1936e, such as Fig.35 Each groove also has two ports 1936f; in this embodiment, each groove 1936 extends along the direction of the tube diameter, from the outer wall of the tube clamping wall to the inner wall (or from the inner wall of the tube clamping wall to the outer wall), and penetrates the tube wall, so the groove 1936 is formed with ports 1936f on the inner wall and the outer wall of the tube clamping wall, respectively, and the protrusion 1937 can be embedded in the groove 1936 from the port 1936f of the groove.

[0470] At each adjacent position of the bolt clamp tube 1930, the number and location of the protrusions 1937 on the side of the clamp tube wall 1931 correspond to the grooves 1936 on the side of the clamp tube wall 1932, and the shape and size of the protrusions 1937 match the grooves 1936. Each protrusion 1937 of the clamp tube wall 1931 is respectively embedded in the grooves 1933 at the corresponding positions of the clamp tube wall 1932. The protrusions 1937 and the grooves 1936 form a complete tube wall at the fitting position, and the head 1937g of the protrusion is located at the groove bottom 1936d, the tail 1937h is located at the notch 1936e, and the head 1937g of the protrusion is located at the groove bottom 1936d, and the tail 1937h is located at the notch 1936e. 7g is larger than the tail 1937h, that is, the head 1937g of the projection is larger than the notch 1936e of the groove. Therefore, when the projection 1937 is inserted into the groove 1933 from the end 1936f of the groove, the head 1937g of the projection will be stuck at the notch 1936e of the groove and cannot pass through the notch 1936e. In this way, the projection 1937 and the groove 1936 are engaged with each other along the circumferential direction of the tube wall, and the adjacent clamping walls 1931 and 1932 are connected at the adjacent part, so that the bolt clamping tube formed by the engagement maintains the tube structure state, and its tube structure is stable and fixed without loosening. This embodiment does not limit the number and position of the grooves or projections on each side of the clamping tube wall, nor is it limited to other related embodiments, as long as the grooves and projections on the adjacent clamping tube walls at the adjacent part of the bolt clamping tube can correspond and engage.

[0471] The shape of the protrusion 1937 and the groove 1936 engaged therewith is a cross-sectional shape perpendicular to the extension direction thereof. In this embodiment, the shape of the protrusion 1937 and the groove 1936 engaged therewith is also the shape presented on the outer wall or inner wall of the bolt clamp tube. In this embodiment, the shape of the protrusion 1937 and the groove 1936 engaged therewith is a trapezoid, such as Fig.36 As shown in (1), it should be noted that the shape of the protrusion 1937 and the groove 1936 engaged therewith in this embodiment can also be designed to be other shapes, including but not limited to arc shape, convex shape, pentagon, hexagon, deformation of trapezoid, racket shape (also called deformation of arc shape), petal shape (also called cat claw shape or deformation of arc shape), Christmas tree shape (also called deformation of triangle or arrow shape), etc. Fig.36 As shown in (2)-(9) in the figure. In this embodiment, at least a portion of the head of the projection is larger than its tail, and correspondingly, at least a portion of the bottom of the groove is larger than its notch, so that the groove clamps the head of the projection through its notch, so that the projection and the groove form a complete tube wall at the joint and also bite each other, so that the adjacent tube walls at the joint are connected; this embodiment does not limit the specific shape of the groove (or projection), nor is it limited to other related embodiments.

[0472] In this embodiment, the distribution and arrangement of the protrusions and grooves on the side of the clamping wall are different from those in the eighteenth embodiment, but they also serve as concave-convex structures to make the adjacent clamping walls fit together at the fitting position to form a complete tube wall, and at the same time bite each other to form a connection, so that the bolt clamp formed by the fitting maintains the tube structure state, and the structure is stable and fixed, without the need for the tightening effect of the bolt body. This embodiment has the same technical effect as the above-mentioned eighteenth embodiment, and the relevant technical effects can be referred to in the eighteenth embodiment, which will not be repeated here.

[0473] Embodiment 20

[0474] For the above-mentioned embodiment 18, at each adjacent part of the bolt clamp tube, the concave-convex structure of one adjacent clamp tube wall is a groove opened on the side, the groove extends along the direction where the bolt clamp tube is located, and the extension length is equal to the length of the bolt clamp tube, and the concave-convex structure of the other adjacent clamp tube wall is a convex block arranged on the side, the convex block extends along the direction where the bolt clamp tube is located, and the extension length is equal to the length of the bolt clamp tube.

[0475] The main difference from the eighteenth embodiment is that in the twentyth embodiment, at each adjacent part of the bolt clamp tube, the concave-convex structure of one adjacent clamp tube wall is a groove opened on the inner wall, and the groove is the first groove. The first groove extends along the direction where the bolt clamp tube is located, and the extension length is equal to the length of the bolt clamp tube; the concave-convex structure of the other adjacent clamp tube wall is a groove opened on the outer wall, and the groove is the second groove. The second groove extends along the direction where the bolt clamp tube is located, and the extension length is equal to the length of the bolt clamp tube.

[0476] In order to solve the problem described in Example 18, this embodiment also provides a new technical solution to enable the bolt clamp tube (including a bolt clamp tube with an outer diameter less than or equal to the hole diameter of the bolt through hole) inserted into the bolt through hole to maintain a tube structure state and a stable and fixed structure. This technical solution is different from the technical solutions of Examples 18 and 19.

[0477] In this embodiment, the bolt clamp tube 2030 is a tube structure formed by the mutual engagement of the tube clamp walls 2031 and 2032; wherein, the outer walls on both sides of the tube clamp wall 2032 are provided with second grooves 2036 as a concave-convex structure, and the inner walls on both sides of the tube clamp wall 2031 are provided with first grooves 2038 as a concave-convex structure; at the adjacent part of the bolt clamp tube, the outer side wall of the first groove 2038 (the outer side wall is the groove side wall where the side of the tube clamp wall is located, and the outer side wall in this embodiment is equivalent to the protrusion 1837 in the eighteenth embodiment) is embedded in the second groove 2036, and at the same time, the outer side wall of the second groove 2036 is embedded in the first groove 2038, and the first groove 2038 and the second groove 2036 form a complete tube wall at the engagement part, and at the same time, the first groove 2038 (the outer side wall) and the second groove 2036 (the outer side wall) are hooked with each other, so that the adjacent tube clamp walls 2031 and 2032 are connected at the adjacent part, so that the bolt clamp tube 1930 maintains a tube structure state.

[0478] Specifically, first grooves 2038 are respectively formed on the inner walls of the tube clamping wall 2031 on both sides. The first grooves 2038 on the inner walls on both sides extend along the direction of the bolt clamping tube, extending from one end of the tube clamping wall to the other end thereof, and the extension length of each first groove 2038 is equal to the tube length of the tube clamping wall 2031 or the bolt clamping tube 2030. Each first groove 2038 is formed by being recessed from the inner wall of the tube clamping wall toward the outer wall along the tube diameter direction; each first groove 2038 has a notch 2038e and a groove bottom 2038d, wherein the first groove 2038 has a portion close to the inner wall as the notch 2038e (the notch faces the inner wall), and the remaining portion as the groove bottom 2038d (the groove bottom 2038d is away from the inner wall). Each first groove 2038 also has two ports 2038f. In this embodiment, each first groove 2038 extends from one end of the tube clamping wall to the other end along the direction of the bolt clamping tube. Therefore, the first groove 2038 is formed with ports 2038f at both ends of the tube clamping wall. Fig.37 shown.

[0479] Similarly, second grooves 2036 are respectively formed on the outer walls on both sides of the tube clamping wall 2032. The second grooves 2036 on the outer walls on both sides extend along the direction of the bolt clamping tube, extending from one end of the tube clamping wall to the other end thereof, and the extension length of each second groove 2036 is equal to the tube length of the tube clamping wall 2032 or the bolt clamping tube 2030. Each second groove 2036 is formed by being recessed from the outer wall of the tube clamping wall toward the inner wall along the tube diameter direction; each second groove 2036 has a notch 2036e and a groove bottom 2036d, wherein the second groove 2036 has a portion close to the outer wall as the notch 2036e (the notch faces the outer wall), and the remaining portion as the groove bottom 2036d (the groove bottom 2036d is away from the outer wall). Each second groove 2036 also has two ports 2036f. In this embodiment, each second groove 2036 extends from one end of the tube clamping wall to the other end along the direction of the bolt clamping tube. Therefore, the second groove 2036 is formed with ports 2036f at both ends of the tube clamping wall. Fig.37 shown.

[0480] The grooves are interlocked, and the shape and size of the outer wall of one groove match the shape and size of the other groove. In this embodiment, the outer wall 2036k of the second groove 2036 matches the shape and size of the first groove 2038, and the outer wall 2036k is embedded in the first groove 2038 to form a complete pipe wall structure with the first groove 2038, which means that: in the pipe diameter direction, the height of the outer wall 2036k + the thickness of the groove bottom 2038d = the wall thickness of the bolt clamp or the clamp wall, and in the circumferential direction of the pipe wall, the wall thickness of the outer wall 2036k = the groove width of the first groove 2038 ; Similarly, the outer wall 2038k of the first groove 2038 matches the shape and size of the second groove 2036, and the outer wall 2038k is embedded in the second groove 2036 to form a complete tube wall structure with the second groove 2036, which means: in the tube diameter direction, the height of the outer wall 2038k + the thickness of the groove bottom 2036d = the wall thickness of the bolt clamp or the tube clamp wall, and in the circumferential direction along the tube wall, the wall thickness of the outer wall 2038k = the groove width of the second groove 2036.

[0481] The shape of the outer wall and the grooves fitted therein (such as the outer wall 2036k and the first groove 2038, the outer wall 2038k and the second groove 2036) is a cross-sectional shape perpendicular to the extension direction thereof. In this embodiment, the shape of the outer wall and the grooves fitted therein is also the shape presented at the end of the bolt clamp tube. In this embodiment, the shape of the outer wall and the grooves fitted therein is a rectangle, such as Fig.37As shown; therefore, the outer side wall can be embedded from the notch of the groove or from the port of the groove. For example, the rectangular outer side wall 2038k can be embedded in the rectangular second groove 2036 from the notch 2036e or the port 2036f; the rectangular outer side wall 2036k can be embedded in the rectangular first groove 2038 from the notch 2038e or the port 2038f.

[0482] At each adjacent part of the bolt clamp tube 2030, the outer side wall 2038k is embedded in the second groove 2036, and the outer side wall 2036k is embedded in the first groove 2038. The first groove 2038 and the second groove 2036 are interlocked with each other and form a complete tube wall at the interlocking part; at the same time, along the circumferential direction of the tube wall, the outer side wall 2038k of the first groove 2038 and the outer side wall 2036k of the second groove 2036 are hooked with each other, and the adjacent clamp tube walls 2031 and 2032 are connected in the circumferential direction, so that the bolt clamp tube formed by interlocking maintains the tube structure state, and its tube structure is stable and fixed without loosening. This embodiment can achieve the same technical effect as the above-mentioned embodiment 18. The relevant technical effects can be referred to in embodiment 18, and will not be repeated here.

[0483] Based on the above, the present invention also provides a modified example, which is as follows:

[0484] The main difference from the above-mentioned embodiment 20 is that in this modified embodiment, a first groove 2038 is provided on the inner wall of one side of the tube clamping wall 2031 as a concave-convex structure, and a second groove 2036 is provided on the outer wall of the other side as a concave-convex structure; the tube clamping wall 2032 also has a first groove 2038 on the inner wall of one side as a concave-convex structure, and a second groove 2036 on the outer wall of the other side as a concave-convex structure. Fig.38 shown.

[0485] At one adjacent portion of the bolt clamp tube 2030, the first groove 2038 on the inner wall of the clamp tube wall 2031 and the second groove 2036 on the outer wall of the clamp tube wall 2032 are mutually engaged, the outer side wall 2036k is embedded in the first groove 2038, and the outer side wall 2038k is embedded in the second groove 2036; at another adjacent portion of the bolt clamp tube 2030, the second groove 2036 on the outer wall of the clamp tube wall 2031 and the first groove 2038 on the inner wall of the clamp tube wall 2032 are mutually engaged, the outer side wall 2036k is embedded in the first groove 2038, and the outer side wall 2038k is embedded in the second groove 2036. This variant embodiment has the same technical effect as the above embodiment, and will not be described again herein.

[0486] Based on the above, the present invention also provides another variation example, which is as follows:

[0487] The main difference from the above-mentioned embodiment 20 is that the shape of the outer wall and the groove engaged therewith in this embodiment can be designed with reference to the shape of the protrusion 1837 and the groove 1836 engaged therewith in the embodiment 18, including but not limited to convex shape, arc shape, trapezoid, pentagon, hexagon, deformation of trapezoid, racket shape (also called deformation of arc shape), petal shape (also called cat claw shape or deformation of arc shape), Christmas tree shape (also called deformation of triangle or arrow shape), etc. Fig.39 shown.

[0488] In this way, the outer wall can only be embedded in the groove from the end of the groove, for example, the outer wall 2038k can only be embedded in the second groove 2036 from the notch 2036e, and the outer wall 2036k can only be embedded in the first groove 2038 from the notch 2038e; the outer wall embedded in the groove will be stuck at the notch of the groove and cannot pass through the notch, so that the outer wall and the groove in the direction of the pipe diameter are engaged with each other, such as the outer wall 2038k is embedded in the second groove 2036, it will be stuck at the notch of the second groove 2036, and the outer wall 2038k and the second groove 2036 are engaged with each other in the direction of the pipe diameter; the outer wall 2036k is embedded in the first groove 2038, it will be stuck at the notch of the first groove 2038, and the outer wall 2036k and the first groove 2038 are engaged with each other in the direction of the pipe diameter. In this variant embodiment, the first groove 2038 and the second groove 2036 are hooked together along the circumferential direction of the tube wall and meshed with each other in the direction of the tube diameter, which makes the fitting and connection of the adjacent tube clamping walls 2031 and 2032 more stable and tight. This variant embodiment has the same technical effect as the above embodiment, and will not be repeated here.

[0489] Embodiment 21

[0490] For the above-mentioned embodiment 18, at each adjacent part of the bolt clamp tube, the concave-convex structure of one adjacent clamp tube wall is a groove opened on the side, the groove extends along the direction where the bolt clamp tube is located, and the extension length is equal to the length of the bolt clamp tube, and the concave-convex structure of the other adjacent clamp tube wall is a convex block set on the side, the convex block extends along the direction where the bolt clamp tube is located, and the extension length is equal to the length of the bolt clamp tube.

[0491] The main difference from the eighteenth embodiment is that in this twenty-first embodiment, each tube clamping wall of the bolt tube clamp itself is a U-shaped tube wall structure, and the U-shaped tube wall structure is a concave-convex structure, and adjacent tube clamping walls in the bolt tube clamp are arranged in opposite directions.

[0492] In order to solve the problem described in Example 18, the present embodiment also provides a new technical solution to enable the bolt clamp tube (including a bolt clamp tube with an outer diameter less than or equal to the hole diameter of the bolt through hole) inserted into the bolt through hole to maintain the tube structure state and the structure to be stable and fixed in shape. This technical solution is different from the technical solutions of Examples 18, 19 and 20.

[0493] In this embodiment, the bolt tube clamp 2130 is a tube structure formed by the tube clamping walls 2131 and 2132 interlocking with each other; wherein the tube clamping walls 2131 and 2132 are both U-shaped tube wall structures, and their U-shaped tube wall structures are concave-convex structures; in the bolt tube clamp 2130, the tube clamping wall 2131 and the tube clamping wall 2132 are arranged in opposite directions, so that at the adjacent part of the bolt tube clamp, the tube clamping wall 2131 and the tube clamping wall 2132 are interlocked with each other through the U-shaped tube wall structure to form a complete tube wall, and at the same time, the adjacent tube clamping walls 2131 and 2132 are hooked with each other through the U-shaped tube wall structure, so that the adjacent tube clamping walls 2131 and 2132 are connected at the adjacent part, so that the bolt tube clamp 1930 maintains a tube structure state.

[0494] Specifically, each tube clamping wall (including the tube clamping walls 2131 and 2132) is a tube wall structure in the shape of a mountain, and has a base wall, a main wall, a side wall and a groove; on one side of the base wall, a main wall is provided in the middle position, and side walls are provided at both ends (the side walls in this embodiment are equivalent to the protrusions 1837 in the eighteenth embodiment), and grooves are formed between the main wall and the side walls on both sides thereof, and the sum of the lengths of the base wall and the main wall is the tube length of the bolt clamping tube; Fig.40 As shown, the tube clamping wall 2131 has a base wall 2131x, a main wall 2131y, two side walls 2137 and two grooves 2136; the tube clamping wall 2132 has a base wall 2132x, a main wall 2132y, two side walls 2137' and two grooves 2136'.

[0495] At each adjacent part of the bolt clamping tube, the side wall of one adjacent clamping tube wall is embedded in the groove of another adjacent clamping tube wall; the side wall of each clamping tube wall has a shape and size that matches the groove in which it is embedded. In this embodiment, the side wall 2137 of the clamping tube wall 2131 has a shape and size that matches the groove 2136' of the clamping tube wall 2132 in which it is embedded. The side wall 2137 is embedded in the groove 2136' and forms a complete tube wall structure with the groove 2136', which means that: in the circumferential direction of the tube wall, the arc length of the side wall 2137 = the arc length of the groove 2136', and in the direction of the bolt clamping tube, the length of the side wall 2137 = the groove depth of the groove 2136' Similarly, the shape and size of the side wall 2137' of the tube clamping wall 2132 match the groove 2136 of the tube clamping wall 2131 in which it is embedded. The side wall 2137' is embedded in the groove 2136 to form a complete tube wall structure with the groove 2136, which means that: in the circumferential direction of the tube wall, the arc length of the side wall 2137' = the arc length of the groove 2136, and in the direction along the bolt clamping tube, the length of the side wall 2137' = the groove depth of the groove 2136.

[0496] At each end of the bolt clamp tube, the base wall of an adjacent clamp tube wall is spliced ​​with the main wall of another adjacent clamp tube wall to form a complete tube wall at the splicing point. At the same time, the sum of the arc lengths of each base wall and each main wall at this end is equal to the circumference of the bolt clamp tube. In this embodiment, at one end of the bolt clamp tube 2130, the base wall 2131x of the clamp tube wall 2131 is spliced ​​with the main wall 2132y of the clamp tube wall 2132 to form a complete tube wall at the splicing point. At the same time, at this end, the arc length of the base wall 2131x + the arc length of the main wall 2132y = the circumference of the bolt clamp tube 2130; at the other end of the bolt clamp tube 2130, the clamp tube wall 2132 has the base wall 2132x and the main wall 2131y of the clamp tube wall 2131 spliced ​​together to form a complete tube wall at the splicing point. At the same time, at this end, the arc length of the base wall 2132x + the arc length of the main wall 2131y = the circumference of the bolt clamp tube 2130.

[0497] In the bolt clamp tube, adjacent clamp tube walls are arranged in opposite directions. In this embodiment, the tube clamping wall 2131 and the tube clamping wall 2132 of the bolt tube clamp 2130 are arranged in opposite directions, so that at each adjacent position of the bolt tube clamp 2130, the side wall 2137 is embedded in the groove 2136', and the side wall 2137' is embedded in the groove 2136. At the same time, the base wall 2131x is spliced ​​with the main wall 2132y, and the base wall 2132x is spliced ​​with the main wall 2131y; the tube clamping wall 2131 and the tube clamping wall 2132 are mutually embedded through the mountain-shaped tube wall structure to form a complete tube wall. At the same time, along the circumferential direction of the tube wall, the tube clamping wall 2131 (the side wall 2137) and the tube clamping wall 2132 (the side wall 2137') are hooked with each other, and the adjacent tube clamping walls 2131 and 2132 are connected in the circumferential direction, so that the bolt tube clamp formed by the embedding maintains the tube structure state, and its tube structure is stable and fixed without loosening.

[0498] In this embodiment, the tube clamping wall is designed to be a tube wall structure in the shape of a mountain, and the adjacent tube clamping walls are arranged in opposite directions, so that the tube clamping walls are interlocked to form a tube structure, and the tube clamping walls are hooked at the connection point, so that the bolt tube clamping formed by the interlocking maintains the tube structure state, and the tube structure is stably fixed and does not loosen. The technical solution provided by this embodiment has the same technical effect as that of the eighteenth embodiment. The relevant technical effects can be referred to in the twentieth embodiment, and will not be repeated here.

[0499] Embodiment 22

[0500] In the first embodiment, when the fastening bolt and the fastening nut are screwed tight, the two will clamp and push the bulge of the external tube from both sides of the bulge (or connection), and the bulge and the outer tube of its outer layer will be firmly pressed together, thereby fixing the connection between the container and the external tube and forming multiple seals at the connection between the container and the external tube.

[0501] The main difference from Example 1 is that in this Example 22, the fastening bolt and the fastening nut have a third positioning structure for indicating the appropriate fastening position of the fastening bolt and the fastening nut; the third positioning structure includes a third positioning groove arranged on the inner wall of the fastening nut, and a third positioning protrusion arranged on the outer wall of the fastening bolt.

[0502] In Example 1, the fastening bolts and the fastening nuts are screwed together so that on the first side of the bulge, the fastening bolts are clamped by the first clamping portion 133 and pushed into the bulge of the external tube, so that the first pressure-bearing surface 112a and its outer layer external tube 150 are tightly pressed together to form a seal; on the second side of the bulge, the fastening nuts are clamped by the second clamping portion 141 and pushed into the bulge of the external tube, so that the second pressure-bearing surface 112b and its outer layer external tube 150 are tightly pressed together to form a seal.

[0503] The above effect can be achieved only when the fastening bolts and fastening nuts are screwed and screwed to an appropriate degree of tightening, but the appropriate degree of tightening of the two cannot be predicted and depends on the personal experience of the operator. If the fastening bolts and fastening nuts are not tightened enough, fluid leakage or even disconnection may occur; if the fastening bolts and fastening nuts are tightened too much, the container device may be damaged. In addition, the fastening bolts and fastening nuts are threadedly connected, and the fastening nuts may also become loose due to vibration during use.

[0504] In order to solve the above problems, the fastening bolts and fastening nuts are tightened to a proper degree of tightening, the quality and efficiency of the tightening operation are improved, and loosening is prevented. This embodiment provides a new technical solution. In this embodiment, a third positioning structure is set on the fastening bolts and fastening nuts to indicate the proper tightening position of the two.

[0505] In this embodiment, the third positioning structure includes a third positioning groove 2245 arranged on the inner wall of the fastening nut, and a third positioning protrusion 2225 arranged on the outer wall of the fastening bolt; the third positioning groove 2245 is an annular groove, which is located on the first side of the threaded structure of the fastening nut; the third positioning protrusion 2225 is a continuous or discontinuous annular protrusion, which is arranged on the bolt rod and is located on the first side of the threaded structure of the fastening bolt.

[0506] At the connection between the connecting tube and the external tube, the fastening bolt (specifically, the bolt body 2220) and the fastening nut 2240 are screwed and tightened. When the two are screwed close to the appropriate tightening position, the operator needs to apply a slightly larger screwing force to push the third positioning protrusion 2225 into the third positioning groove 2245. In this way, the operator can easily determine the appropriate tightening position of the fastening bolt and the fastening nut through the change of the screwing force. When the bolt body 2220 and the fastening nut 2240 are screwed and tightened to the appropriate tightening position, on the first side of the bulging part, the fastening bolt is clamped by the first clamping part and pushed into the bulging part of the external tube, and the first pressure-bearing surface and the outer layer of the external tube are tightly pressed together to form a seal; on the second side of the bulging part, the fastening nut 2240 is clamped by the second clamping part and pushed into the bulging part of the external tube, and the second pressure-bearing surface and the outer layer of the external tube are tightly pressed together to form a seal.

[0507] At the same time, when the bolt body 2220 and the fastening nut 2240 are spirally tightened to a moderately tightened position, the third positioning protrusion 2225 is located in the third positioning groove 2245, and the third positioning groove 2245 clamps the third positioning protrusion 2225. A slightly larger screwing force is required to push the third positioning protrusion 2225 out of the annular groove 2245. Therefore, the problem of the fastening nut loosening can be effectively prevented.

[0508] In this embodiment, the shape and size of the third positioning groove 2245 match the third positioning protrusion 2225, and the ring cross-sections of the third positioning groove 2245 and the third positioning protrusion 2225 are arc-shaped. Fig.41 As shown, the arc-shaped ring body is smooth, so that the third positioning protrusion 2225 can be pushed into or pushed out of the third positioning groove 2245.

[0509] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A container connectable to a tube, characterized in that: include: The container body has at least one connecting tube; each connecting tube is provided with a bulging portion, the bulging portion is used to press into the external tube, so that the external tube is in an expanded state, and the connecting tube is connected to the external tube; A plurality of fastening bolts, which can be inserted into the connecting pipe and arranged on one side of the bulging part; a first clamping part is arranged inside the fastening bolts for clamping and pushing the bulging part of the external pipe; A plurality of fastening nuts are provided, which can be put on the external tube and arranged on the other side of the bulging part; a second clamping part is provided inside the fastening nut for clamping and pushing the bulging part of the external tube; the fastening nut is threadedly connected with the fastening bolt, and the two are respectively clamped and pushed into the bulging part of the external tube from both sides of the bulging part, so as to fix the connection between the connecting tube and the external tube and form a seal.

2. The tube-connectable container according to claim 1, characterized in that: The bulging portion is formed by the outer wall of the connecting pipe bulging outwards; The bulging portion is located at the second end of the connecting pipe; The end or side of each component close to the container body in the assembled state is the first end or the first side, and the end or the side away from the container body is the second end or the second side.

3. The tube-connectable container according to claim 2, characterized in that: The bulging portion has a first pressure-bearing surface and a second pressure-bearing surface; Wherein, the first pressure-bearing surface is located at the first side of the bulging portion, and the second pressure-bearing surface is located at the second side of the bulging portion; The first pressure-bearing surface and the second pressure-bearing surface are conical surfaces; In the direction along the connecting pipe and pointing to the second end thereof, the outer diameter of the first pressure-bearing surface gradually increases, and the outer diameter of the second pressure-bearing surface gradually decreases.

4. The tube-connectable container according to claim 3, characterized in that: The bulging portion also has a third pressure-bearing surface; The third pressure-bearing surface is located between the first pressure-bearing surface and the second pressure-bearing surface; The third pressure-bearing surface is a cylindrical curved surface; In the direction along the connecting pipe, the outer diameter of the third pressure-bearing surface remains unchanged.

5. The tube-connectable container according to any one of claims 3 or 4, characterized in that: The maximum outer diameter of the bulging portion is the outer diameter of the third pressure-bearing surface; or, The maximum outer diameter of the bulging portion is the maximum outer diameter of the first pressure-bearing surface or the second pressure-bearing surface.

6. The tube-connectable container according to claim 5, characterized in that: The bulge forms a seal with the outer tube at its maximum outer diameter.

7. The tube-connectable container according to claim 1, characterized in that: Each connecting pipe also has a non-bulging portion; The non-bulging portion is the portion of the connecting pipe other than the bulging portion.

8. The tube-connectable container according to any one of claims 1 or 7, characterized in that: The non-bulging portion is located at a first side of the bulging portion, and the fastening bolt is sleeved on the non-bulging portion.

9. The tube-connectable container according to claim 8, characterized in that: The non-bulging portion adjoining the bulging portion is also pressed into the outer tube.

10. The tube-connectable container according to claim 1, characterized in that: The first clamping portion and the second clamping portion are circular ring structures.

11. The tube-connectable container according to any one of claims 3 or 10, characterized in that: The first composite outer diameter R1 ≤ the inner diameter of the first clamping portion < the second composite outer diameter R2; wherein the first composite outer diameter R1 is the outer diameter of the non-bulging portion pressed into the external tube, and the second composite outer diameter R2 is the maximum outer diameter of the bulging portion pressed into the external tube; The first clamping part clamps and pushes the first pressure-bearing surface and the outer layer external tube thereof, so that a seal is formed between the first pressure-bearing surface and the external tube.

12. The tube-connectable container according to claim 11, characterized in that The inner wall of the first clamping portion is a cylindrical curved surface, and the first clamping portion clamps and presses the first pressure-bearing surface and its outer layer external tube through its inner edge; or, The inner wall of the first clamping part has a conical surface and can fit with the first pressure-bearing surface. The first clamping part clamps and presses the first pressure-bearing surface and its outer layer external tube through its conical inner wall.

13. The tube-connectable container according to any one of claims 3 or 10, characterized in that: The outer diameter of the outer tube ≤ the inner diameter of the second clamping portion < the second composite outer diameter R2; wherein the second composite outer diameter R2 is the maximum outer diameter of the bulging portion pressed into the outer tube; The second clamping part clamps and pushes the second pressure-bearing surface and the outer layer external tube thereof, so that a seal is formed between the second pressure-bearing surface and the external tube.

14. The tube-connectable container according to claim 13, characterized in that The inner wall of the second clamping portion is a cylindrical curved surface, and the second clamping portion clamps and presses the second pressure-bearing surface and its outer layer external tube through its inner edge; or, The inner wall of the second clamping part has a tapered surface and can fit with the second pressure-bearing surface. The second clamping part clamps and presses the second pressure-bearing surface and its outer layer external tube through its tapered inner wall.

15. The tube-connectable container according to claim 2, characterized in that: The end surface of the bulging portion is a conical curved surface; In a direction along the connecting pipe and pointing to the second end thereof, the inner diameter of the port has an increasing trend.

16. The tube-connectable container according to claim 1, characterized in that: The diameters of the connecting pipes are the same or different; The inner diameter of each connecting pipe is consistent with the inner diameter of the external pipe it is connected to.

17. The tube-connectable container according to claim 1, characterized in that: The container body also has a containing cavity for storing fluid; The connecting pipe is arranged on the accommodating cavity and communicated with the accommodating cavity.

18. The tube-connectable container according to claim 17, characterized in that A valve body is arranged in the accommodating cavity to control the connection or disconnection between the accommodating cavity and each connecting pipe.

19. The tube-connectable container according to claim 1, characterized in that: The outer wall of the fastening bolt is provided with a threaded structure to cooperate with the fastening nut for threaded connection.

20. The tube-connectable container according to claim 1, wherein: The fastening nut has a nut body; The inner wall of the nut body is provided with a threaded structure for threaded connection with the fastening bolt.

21. The tube-connectable container according to claim 20, characterized in that The second clamping portion is disposed inside the nut body; The second clamping portion is located on a second side of the threaded structure of the nut body.

22. The tube-connectable container according to claim 1, characterized in that: The fastening bolt and the fastening nut also have a third positioning structure for indicating the proper fastening position of the fastening bolt and the fastening nut; At a moderately tightened position, the tightening bolts and the tightening nuts secure the connection between the container and the external pipe, and form multiple seals at the connection between the connecting pipe and the external pipe.

23. The tube-connectable container according to claim 22, characterized in that The third positioning structure includes a third positioning groove disposed on the inner wall of the fastening nut and a third positioning protrusion disposed on the outer wall of the fastening bolt; When the fastening bolt and the fastening nut are screwed to a moderately fastened position, the third positioning protrusion is inserted into the third positioning groove.

24. A tube-connectable container according to any one of claims 22, characterized in that The third positioning groove is an annular groove located on the first side of the thread structure of the fastening nut; The third positioning protrusion is a continuous or discontinuous annular protrusion, and is located on the first side of the thread structure of the fastening bolt; The shape and size of the third positioning groove match those of the third positioning protrusion.

25. The tube-connectable container according to claim 23, characterized in that The ring body cross sections of the third positioning groove and the third positioning protrusion are both arc-shaped.

26. The tube-connectable container according to claim 1, characterized in that: The tube-connectable container and the external tube are made of synthetic resin material.

27. The tube-connectable container according to claim 1, wherein: The number of the fastening bolts and the fastening nuts is determined according to the number of the connecting pipes or the bulging parts.

28. A fastening bolt, suitable for the pipe-connectable container according to any one of claims 1 to 27, characterized in that: The fastening bolt can be inserted into the connecting pipe and arranged on one side of the bulging part; a first clamping part is arranged inside the fastening bolt for clamping and pushing the bulging part of the external pipe.

29. The fastening bolt according to claim 28, characterized in that Each fastening bolt comprises a bolt body and a bolt clamp tube; A bolt through hole is provided inside the bolt body, and the bolt clamp tube is placed in the bolt through hole; The bolt body can pass through the bulging part from the second end of the connecting tube and be inserted into the non-bulging part; the bolt clamping tube is a tube structure formed by splicing or chiming, which can be spliced ​​or chime-formed around the non-bulging part or the outer tube of its outer layer.

30. The fastening bolt according to claim 29, characterized in that The bolt clamp tube is formed by splicing or embedding two or more clamp tube walls; Each clamping tube wall of the bolt clamping tube is an arc-shaped tube wall and has the same length; The arc sizes of the clamping tube walls are the same or different.

31. The fastening bolt according to claim 29, characterized in that The bolt clamp pipe is formed by splicing a pipe structure with pipe seams; The pipe seam is arranged along the direction where the bolt clamps the pipe.

32. The fastening bolt according to claim 29, characterized in that The bolt through hole is arranged along the direction of the fastening bolt and penetrates the bolt body; The diameter of the bolt through hole is greater than the maximum outer diameter of the bulging portion.

33. The fastening bolt according to claim 29, characterized in that The bolt body comprises a bolt shank and a bolt head; The bolt head is located at the first end of the bolt rod; The thread structure of the fastening bolt is arranged on the bolt rod.

34. The fastening bolt according to claim 33, characterized in that The bolt body also has a limiting portion; The limiting portion is located inside the bolt through hole and is used to support the bolt clamping tube.

35. The fastening bolt according to claim 34, characterized in that The limiting part at least has a limiting body and a center hole; wherein, The limiting body is arranged on the inner wall of the bolt body along the circumferential direction; the center hole is located at the center position of the limiting body, and the diameter of the center hole is smaller than the diameter of the bolt through hole.

36. The fastening bolt according to claim 35, characterized in that At least the outer diameter of the bolt clamp tube is greater than the aperture of the center hole, so that the limiting body can bear the bolt clamp tube; the aperture of the center hole is greater than the maximum outer diameter of the bulging part, so that the bolt body can pass through the bulging part.

37. The fastening bolt according to any one of claims 34 to 36, characterized in that: The limiting portion is a circular ring structure; The limiting body is a ring body of a circular ring structure, and the center hole is a ring hole of a circular ring structure; The inner diameter of the bolt clamp tube is ≥ the diameter of the center hole.

38. The fastening bolt according to claim 37, characterized in that The entire end surface of the first end of the bolt clamping tube is located on the limiting body.

39. A fastening bolt as claimed in any one of claims 30, 31 or 37, characterized in that The limiting part also has a plurality of through holes, and the through holes are opened on the limiting body; The bolt clamp tube or each of its clamp tube walls corresponds to at least one through hole, and a portion of the end surface is located at the corresponding through hole.

40. The fastening bolt according to claim 39, characterized in that By setting marks at visible positions of the bolt body to specify the adjacent positions of each adjacent tube wall, at least one through hole is opened in the limiting body area between any two adjacent marks, and the tube clamping wall located in the limiting body area corresponds to at least one through hole.

41. The fastening bolt according to claim 39, characterized in that There are at least N through holes on the limiting body evenly distributed in the circumferential direction, so that the end face of the first end of any clamping wall is located at at least one through hole, and each clamping wall corresponds to at least one through hole; wherein N is a positive integer, N×min(L1)≥the circumference of the bolt clamping tube>(N-1)×min(L1), and min(L1) is the arc length of the clamping wall with the smallest arc length among all the clamping walls assembled to form the bolt clamping tube.

42. The fastening bolt according to any one of claims 34 to 36, characterized in that: The limiting part is a circular ring structure; The limiting body is a ring body of a circular ring structure, and the center hole is a ring hole of a circular ring structure; The diameter of the center hole is greater than the inner diameter of the bolt clamp tube.

43. The fastening bolt according to claim 42, characterized in that The outer end surface of the first end of the bolt clamp tube is located on the limiting body, and the inner end surface is located in the center hole.

44. The fastening bolt according to any one of claims 34 to 36, characterized in that: The limiting part is formed by a plurality of convex teeth distributed along the circumferential direction on the inner wall of the bolt body; The limiting body is a plurality of convex teeth; the central hole is a hole surrounded by a plurality of convex teeth distributed along the circumferential direction; The limiting part also has a gap, which is a space formed between adjacent convex teeth; The inner diameter of the bolt clamp tube is ≥ the diameter of the center hole.

45. The fastening bolt according to claim 44, characterized in that The outer end surface and the inner end surface of the first end of the bolt clamping tube are both located on the limiting body.

46. ​​A fastening bolt as claimed in any one of claims 31 or 44, characterized in that When the bolt clamp pipe is formed by splicing a pipe structure with a pipe gap, part of its end surface is located in the gap.

47. A fastening bolt as claimed in any one of claims 30 or 44, characterized in that When the bolt clamp is formed by splicing or interlocking two or more clamp walls, The arc length of any gap is less than the arc length of any clamping wall among all the clamping walls forming the bolt clamping pipe, so that each clamping wall has at least one convex tooth to carry the load.

48. The fastening bolt according to claim 47, characterized in that The arc length of any convex tooth is less than the arc length of any tube clamping wall among all the tube clamping walls forming the bolt tube clamping, so that a part of the end surface of the first end of each tube clamping wall is located in the gap.

49. The fastening bolt according to any one of claims 34 to 36, characterized in that: The limiting part is formed by a plurality of convex teeth distributed along the circumferential direction on the inner wall of the bolt body; The limiting body is a plurality of convex teeth; the central hole is a hole surrounded by a plurality of convex teeth distributed along the circumferential direction; The limiting part also has a gap, which is a space formed between adjacent convex teeth; The diameter of the center hole is greater than the inner diameter of the bolt clamp tube.

50. The fastening bolt according to claim 49, characterized in that The outer end surface of the first end of the bolt clamp tube is located on the limiting body, and the inner end surface is located in the center hole.

51. A fastening bolt as claimed in any one of claims 31 or 50, characterized in that When the bolt clamp tube is formed by splicing a tube structure with a tube gap, a portion of the outer end surface of the first end is located in the gap.

52. The fastening bolt according to any one of claims 30 or 50, characterized in that When the bolt clamp is formed by splicing or interlocking two or more clamp walls, The arc length of any gap is less than the arc length of any clamping wall among all the clamping walls forming the bolt clamping pipe, so that each clamping wall has at least one convex tooth to carry the load.

53. The fastening bolt according to claim 52, characterized in that The arc length of the convex teeth ≥ the arc length of the clamping tube wall; or, If the arc length of the convex teeth is less than the arc length of the tube clamping wall, the tube clamping wall and the outer end surface of the first end thereof still have a part of the end surface located in the gap.

54. The fastening bolt according to claim 34, characterized in that The length of the bolt clamp tube is ≤ the maximum length of the non-bulging part between the bolt body and the bulging part; and The length of the bolt clamping tube is equal to the distance from the limiting portion to the second end of the bolt body.

55. The fastening bolt according to claim 34, characterized in that Each fastening bolt can contain two or even more bolt clamps; The length of each bolt clamp tube is ≤ the maximum length of the non-bulging part between the bolt body and the bulging part that is inserted into the non-bulging part; and, The sum of the tube lengths of the bolt clamping tubes is equal to the distance from the limiting portion to the second end of the bolt body.

56. The fastening bolt according to claim 54, characterized in that The limiting portion is moved or extended toward the second end of the bolt body, thereby shortening the distance from the limiting portion to the second end of the bolt body.

57. The fastening bolt according to any one of claims 28, characterized in that The first composite outer diameter R1 ≤ the inner diameter of the first clamping portion < the second composite outer diameter R2; wherein the first composite outer diameter R1 is the outer diameter of the non-bulging portion pressed into the external tube, and the second composite outer diameter R2 is the maximum outer diameter of the bulging portion pressed into the external tube; The first clamping part clamps and pushes the first pressure-bearing surface and the outer layer external tube thereof, so that a seal is formed between the first pressure-bearing surface and the external tube.

58. The fastening bolt according to claim 57, characterized in that The inner wall of the first clamping portion is a cylindrical curved surface, and the first clamping portion clamps and presses the first pressure-bearing surface and its outer layer external tube through its inner edge; or, The inner wall of the first clamping part has a conical surface and can fit with the first pressure-bearing surface. The first clamping part clamps and presses the first pressure-bearing surface and its outer layer external tube through its conical inner wall.

59. The fastening bolt according to claim 29, characterized in that The outer diameter of the bolt clamp tube is ≤ the diameter of the bolt through hole; The inner diameter of the bolt clamp tube is ≥ the first composite outer diameter R1, wherein the first composite outer diameter R1 is the outer diameter of the non-bulging portion of the pressed outer tube.

60. The fastening bolt according to any one of claims 57 or 59, characterized in that When the inner diameter of the bolt clamped tube is less than the second composite outer diameter R2, the first clamping portion may be the second end of the bolt clamped tube; wherein the second composite outer diameter R2 is the maximum outer diameter of the bulging portion pressed into the outer tube.

61. The fastening bolt according to claim 57, characterized in that The first clamping portion is a circular ring structure disposed in the bolt clamping tube; the inner diameter of the circular ring structure is less than the second composite outer diameter R2, and the circular ring structure is disposed on the inner wall of the second end of the bolt clamping tube along the circumferential direction; The second composite outer diameter R2 is the maximum outer diameter of the bulged portion pressed into the outer tube.

62. The fastening bolt according to claim 59, characterized in that When the outer diameter of the bolt clamp tube equals the hole diameter of the bolt through hole, the bolt body clamps the bolt clamp tube formed by the assembly through its inner wall, so that the bolt clamp tube maintains the tube structure state; When the outer diameter of the bolt clamp tube is less than the hole diameter of the bolt through hole, a clamping structure is provided on the outer wall of the bolt clamp tube, and the outer diameter of the clamping structure is equal to the hole diameter of the bolt through hole. The bolt body clamps the clamping structure through its inner wall to keep the bolt clamp tube in a tube structure state.

63. The fastening bolt according to claim 62, characterized in that The tight hoop structure is a complete circular ring structure; or, The tight hoop structure is an incomplete circular ring structure and is composed of a number of discontinuous circular ring segments.

64. The fastening bolt according to claim 62, characterized in that The clamping structure is arranged at the second end of the bolt clamping tube.

65. The fastening bolt according to claim 30, characterized in that The bolt clamp has a first positioning structure for positioning two adjacent clamp walls so that the two ends of the two adjacent clamp walls are aligned; The first positioning structure includes a positioning pin arranged on a side surface of an adjacent tube clamping wall, and a positioning groove arranged on a side surface of another adjacent tube clamping wall.

66. The fastening bolt according to claim 65, characterized in that At the adjacent part of the bolt clamp tube, the setting position, quantity and shape of the positioning pin on the side of one adjacent clamp tube wall match the setting position, quantity and shape of the positioning groove on the side of another adjacent clamp tube wall.

67. The fastening bolt according to claim 34, characterized in that The fastening bolt also has a second positioning structure; The second positioning structure cooperates with the limiting part to clamp the bolt clamping tube in the direction of the connecting tube, so that the bolt clamping tube and the bolt body move synchronously; at the same time, the bolt body can also tighten the bolt clamping tube through the second positioning structure.

68. A fastening bolt as claimed in any one of claims 67, characterized in that The second positioning structure includes a second positioning groove disposed on the inner wall of the second end of the bolt body, and a second positioning protrusion disposed on the outer wall of the second end of the bolt clamping tube; When the first end of the bolt body reaches the limiting portion, the second positioning protrusion is located in the second positioning groove.

69. The fastening bolt according to claim 68, characterized in that The second positioning groove is an annular groove; The second positioning protrusion is a continuous or discontinuous annular protrusion; The shape and size of the second positioning groove match those of the second positioning protrusion, and the maximum outer diameter of the second positioning protrusion is equal to the maximum inner diameter of the second positioning groove.

70. The fastening bolt according to claim 69, characterized in that The ring body cross-sections of the second positioning groove and the second positioning protrusion are both arc-shaped.

71. The fastening bolt according to claim 30, characterized in that Each clamping tube wall is provided with a concave-convex structure; At each adjacent part of the bolt clamp, the concave-convex structures of adjacent clamp walls fit together to form a complete tube wall; at the same time, the concave-convex structures of adjacent clamp walls also bite or hook each other to form a connection between adjacent clamp walls and keep the bolt clamp in a tube structure state.

72. The fastening bolt according to claim 71, characterized in that At each adjacent part of the bolt clamp tube, the concave-convex structure of an adjacent clamp tube wall is a groove opened on the side surface, and the groove extends along the direction of the bolt clamp tube, and its extension length is equal to the length of the bolt clamp tube; The concave-convex structure of another adjacent tube clamping wall is a convex block arranged on the side surface, the convex block extends along the direction where the bolt clamps the tube, and its extension length is equal to the length of the bolt clamping tube; or, The concave-convex structure of another adjacent tube clamping wall is a plurality of protrusions arranged on the side surface, the plurality of protrusions are distributed along the direction where the bolt clamps the tube, and a protrusion is arranged at the second end of the bolt clamping tube, each protrusion extends along the direction where the bolt clamps the tube, and its extension length is less than the length of the bolt clamping tube.

73. The fastening bolt according to claim 71, characterized in that At each adjacent part of the bolt clamping tube, the concave-convex structure of an adjacent clamping tube wall is a plurality of grooves opened on the side surface, the plurality of grooves are distributed along the direction where the bolt clamping tube is located, and each groove extends along the direction where the tube diameter is located and penetrates the tube wall; The concave-convex structure of another adjacent pipe clamping wall is a plurality of protrusions arranged on the side surface, the plurality of protrusions are distributed along the direction where the bolt clamps the pipe, each protrusion extends along the direction where the pipe diameter is located, and its extension length is equal to the wall thickness of the pipe.

74. A fastening bolt as claimed in any one of claims 72 or 73, characterized in that At each adjacent position of the bolt clamp tube, the upper protrusion of an adjacent clamp tube wall is embedded in the groove of another adjacent clamp tube wall; The shape and size of the protrusion match the groove in which it is embedded, and a complete tube wall is formed at the embedded position.

75. The fastening bolt according to claim 73, characterized in that At each adjacent part of the bolt clamp tube, the number and arrangement position of the projections on the side of an adjacent clamp tube wall correspond to the grooves on the side of another adjacent clamp tube wall.

76. A fastening bolt as claimed in any one of claims 72 or 73, characterized in that The protrusion is formed by protruding from the side surface of the protrusion toward the outside of the tube wall along the circumferential direction of the tube wall, and has a head and a tail; the part of the protrusion connected to the side surface is the tail, and the rest of the part is the head, and at least part of the head of the protrusion is larger than the tail; The groove is formed by being sunken from its side surface into the tube wall along the circumferential direction of the tube wall, and has a groove opening and a groove bottom; the groove has a portion close to the side surface as the groove opening, and the remaining portion as the groove bottom, and at least a portion of the groove bottom of the groove is larger than the groove opening; When the protrusion is embedded in the groove, its head is located at the groove bottom and its tail is located at the notch. The groove clamps the head of the protrusion through the notch, so that the protrusion and the groove are engaged with each other and adjacent clamping walls are connected at the adjacent parts.

77. A fastening bolt as claimed in claim 76, characterized in that The groove also has an end, and the protrusion is embedded in the groove from the end of the groove.

78. The fastening bolt according to claim 74, characterized in that The shape of the protrusion and the groove engaged therewith can be any one of a convex shape, an arc shape, a trapezoid, a pentagon, a hexagon, a deformation of a trapezoid, a racket shape, a cat's paw shape, and a Christmas tree shape.

79. A fastening bolt as claimed in any one of claims 72 or 73, characterized in that Grooves are provided on both sides of the tube clamping wall as a concave-convex structure; or, Both sides of the tube clamping wall are provided with convex blocks as concave-convex structures; or, A groove is provided on one side surface of the tube clamping wall as a concave-convex structure, and a convex block is provided on the other side surface as a concave-convex structure.

80. The fastening bolt according to claim 71, characterized in that At each adjacent part of the bolt clamp tube, the concave-convex structure of an adjacent clamp tube wall is a groove opened on the inner wall, and the groove is the first groove. The first groove extends along the direction of the bolt clamp tube, and the extension length is equal to the length of the bolt clamp tube. The concave-convex structure of another adjacent tube clamping wall is a groove opened on the outer wall, and the groove is the second groove. The second groove extends along the direction where the bolt clamps the tube, and the extension length is equal to the length of the bolt clamping tube.

81. The fastening bolt as claimed in claim 80, characterized in that At each adjacent part of the bolt clamp tube, the outer side wall of an adjacent clamp tube wall is embedded in the groove of another adjacent clamp tube wall; wherein, The outer side wall of the first groove has a shape and size that matches the second groove in which it is embedded, and forms a complete tube wall at the embedded position; The shape and size of the outer side wall of the second groove match the first groove in which it is embedded, and a complete tube wall is formed at the embedded position.

82. The fastening bolt according to claim 80, characterized in that The first groove is formed by being recessed from the inner wall of the clamping tube wall toward the outer wall along the tube diameter direction, and has a groove opening and a groove bottom; The first groove has a portion close to the inner wall as a groove opening and the remaining portion as a groove bottom; The second groove is formed by being recessed from the outer wall of the clamping tube wall toward the inner wall along the tube diameter direction, and has a groove opening and a groove bottom; The second groove has a portion close to the outer wall as a groove opening and the remaining portion as a groove bottom.

83. The fastening bolt according to claim 82, characterized in that The first groove or the second groove further has a port; The outer side wall of the first groove is embedded in the second groove from the end of the second groove; The outer side wall of the second groove is embedded in the first groove from the end of the first groove.

84. The fastening bolt according to claim 81, characterized in that The shape of each outer side wall and the groove engaged therewith can be any one of a rectangle, a convex shape, an arc shape, a trapezoid, a pentagon, a hexagon, a deformation of a trapezoid, a racket shape, a cat's paw shape, and a Christmas tree shape.

85. A fastening bolt as claimed in any one of claims 83 or 84, characterized in that When the shapes of each outer side wall and the groove engaged therewith are rectangular, each outer side wall can also be embedded in the groove from the notch.

86. The fastening bolt according to claim 80, characterized in that The inner walls on both sides of the tube clamping wall are provided with first grooves as the concave-convex structure; or, Second grooves are provided on the outer walls on both sides of the clip pipe wall as the concave-convex structure; or, First grooves are provided on the inner walls on one side of the clip pipe wall as the concave-convex structure, and second grooves are provided on the outer walls on the other side of the clip pipe wall as the concave-convex structure.

87. The fastening bolt according to claim 71, wherein Each clip pipe wall of the bolt clip pipe itself is a mountain-shaped pipe wall structure, and the mountain-shaped pipe wall structure is used as the concave-convex structure, and the adjacent clip pipe walls in the bolt clip pipe are arranged in opposite directions.

88. The fastening bolt according to claim 87, wherein Each clip pipe wall has a base wall, a main wall, side walls and grooves; On one side of the base wall, a main wall is provided at the middle position, and side walls are respectively provided at both ends. Grooves are respectively formed between the main wall and the side walls on both sides of it. The sum of the lengths of the base wall and the main wall is the pipe length of the bolt clip pipe.

89. The fastening bolt according to claim 88, wherein At each adjacent joint of the bolt clip pipe, the side wall of one adjacent clip pipe wall is embedded into the groove of the other adjacent clip pipe wall; The shape and size of each side wall match the groove into which it is embedded, and a complete pipe wall is formed at the fitting part.

90. The fastening bolt according to claim 88, wherein At each end of the bolt clip pipe, the base wall of one adjacent clip pipe wall is joined with the main wall of the other adjacent clip pipe wall, and a complete pipe wall is formed at the joint; At the same time, the sum of the arc lengths of the base walls and the main walls at this end is equal to the circumference of the bolt clip pipe.

91. A pipe connection method, applicable to the pipe-connectable container according to any one of claims 1 to 27, characterized in that: Comprising the following steps: The bolt body passes through the bulging part from the second end of the connecting pipe and is sleeved on the non-bulging part; The fastening nut is sleeved on the outer pipe; Both the bulging part and the part of the non-bulging part connected thereto are pressed into the outer pipe. The outer pipe is in an expanded diameter state. A connection is formed between the connecting pipe and the outer pipe. The fastening nut is located on the second side of the bulging part; The bolt clip pipe is installed in the bolt body to form a fastening bolt; the formed fastening bolt is sleeved on the non-bulging part and is located on the first side of the bulging part; The fastening bolts and the fastening nuts on both sides of the bulging part are screwed tightly. Opposite pushing forces are applied to the bulging part pressed into the outer pipe through the fastening bolts and the fastening nuts, so as to fix the connection between the container and the outer pipe, and at the same time, multiple seals are formed at the connection.

92. The pipe connection method according to claim 91, wherein At the non-bulging part between the bolt body and the bulging part, each clip pipe wall surrounds the non-bulging part or the outer pipe outside it and is assembled along the non-bulging part to form a bolt clip pipe in the bolt through hole, so as to form a fastening bolt; or, At the non-bulging part between the bolt body and the bulging part, each clip pipe wall is respectively installed into the bolt body along the non-bulging part and is assembled in the bolt through hole to form a bolt clip pipe, so as to form a fastening bolt.

93. The pipe connection method according to claim 91, wherein At the non-bulging part between the bolt body and the bulging part, the pipe seam of the bolt clip pipe is opened, and the bolt clip pipe surrounds the non-bulging part or the outer pipe outside it and is installed into the bolt through hole along the non-bulging part, so as to form a fastening bolt.

94. The pipe connection method according to claim 91, wherein The fastening bolt and the fastening nut are screwed tightly to a moderately tightened position.

95. A tube disassembly method, applicable to the tube-connectable container according to any one of claims 1 to 27, characterized in that: The steps include: The fastening bolts and fastening nuts are screwed loose; The connecting pipe is withdrawn from the external pipe and is disassembled from the external pipe; The fastening bolt is separated from the bulging portion along the non-bulging portion, and the bolt clamping tube or the clamping tube wall thereof is removed from the bolt through hole; The bolt body is removed from the second end of the connecting pipe through the bulging portion; Remove the retaining nut from the outer tube.

96. The disassembly method according to claim 95, characterized in that: Push the bolt clamp tube out of the bolt body, disassemble the adjacent clamp tube walls, and remove the bolt clamp tube from the non-bulging part; or, Push the clamp tube wall out of the bolt body and remove it from the non-bulging part.

97. The pipe disassembly method of claim 95, wherein: Push the bolt clamp tube out of the bolt body, open the tube gap of the bolt clamp tube, and remove the bolt clamp tube from the non-bulging part.

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