Container capable of being connected through pipes, fastening nut 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 nuts and pipes of the container. The container capable of being connected through the pipe comprises a container body, a fastening nut and a fastening bolt, 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 nut is provided with a nut body and a nut clamping pipe, and the nut body can penetrate through the bulging part to be arranged on the connecting pipe in a penetrating and sleeving mode; the nut 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 nut 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 nut and the fastening bolt 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 nut and connection and disassembly method used in the manufacturing process of technical fields such as semiconductors, liquid crystal display panels, photovoltaics, biotechnology, pharmaceuticals, medical equipment, microelectronics, optics, magnetic disks, automobile 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 may easily occur at the connection and even cause a safety accident. Therefore, a container with excellent connection and sealing effect 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 by a pipe, a fastening nut thereof, and a connection and disassembly method. The container that can be connected by a pipe can be connected to an external pipe for conveying fluid, so as to facilitate the input or output of fluid into or out of the container. The container body of the container that can be connected by a pipe is connected to the external pipe, forming 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, thereby fixing the connection between the container body and the external pipe and ensuring the stability of the connection, and at the same time forming multiple seals at the connection, ensuring 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 nuts, which can be put on the connecting pipe and are arranged on one side of the bulging part; the fastening nuts have a first clamping part, which is used to clamp and push the bulging part of the external pipe;

[0009] A plurality of fastening bolts, which can be inserted into the outer tube and arranged on the other side of the bulging portion; the fastening bolts have a second clamping portion for clamping and pushing the bulging portion of the outer tube;

[0010] The fastening bolt is threadedly connected with the fastening nut, and the two are respectively clamped and pushed into the bulging part of the external pipe from both sides of the bulging part, so as to fix the connection between the connecting pipe and the external pipe 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 nut 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 inner wall of the fastening nut is provided with a threaded structure to cooperate with the fastening bolt for threaded connection.

[0048] Optionally, the fastening bolt has a bolt shank, a bolt head and a bolt through hole;

[0049] The outer wall of the bolt rod is provided with a thread structure, which is located at the first end of the bolt rod and is used to cooperate with the fastening nut for threaded connection;

[0050] The bolt head is located at the second end of the bolt shaft.

[0051] Optionally, the outer diameter of the outer tube ≤ the inner diameter of the bolt through hole < the second composite outer diameter R2;

[0052] The second composite outer diameter R2 is the maximum outer diameter at the bulging portion pressed into the outer tube;

[0053] The second clamping portion is the first end of the fastening bolt, and the inner diameter of the second clamping portion is the inner diameter of the bolt through hole.

[0054] Optionally, the fastening nut and the fastening bolt further have a third positioning structure for indicating an appropriate fastening position of the fastening nut and the fastening bolt;

[0055] At the appropriate tightening position, the tightening nut and the tightening bolt fix the connection between the connecting pipe and the external pipe, and form multiple seals at the connection between the connecting pipe and the external pipe.

[0056] 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;

[0057] When the fastening nut and the fastening bolt are screwed to a moderately fastened position, the third positioning protrusion is inserted into the third positioning groove.

[0058] Optionally, the third positioning groove is an annular groove located on the second side of the threaded structure of the fastening bolt;

[0059] The third positioning protrusion is a continuous or discontinuous annular protrusion, which is arranged on the bolt rod and located on the second side of the threaded structure of the fastening bolt;

[0060] The shape and size of the third positioning groove match those of the third positioning protrusion.

[0061] Optionally, the ring body cross-sections of the third positioning groove and the third positioning protrusion are both arc-shaped.

[0062] Optionally, the tube-connectable container and the external tube are made of synthetic resin material.

[0063] Optionally, the number of the fastening nuts and the fastening bolts is determined according to the number of connecting pipes or bulging parts.

[0064] Another technical solution of the present invention is to provide a fastening nut suitable for any of the above-mentioned pipe-connectable containers;

[0065] The fastening nut can be put on the connecting pipe and arranged on one side of the bulging part; the fastening nut has a first clamping part for clamping and pushing the bulging part of the external pipe.

[0066] Optionally, each fastening nut comprises a nut body and a nut clamping tube;

[0067] A nut through hole is provided inside the nut body, and the nut clamping tube is placed in the nut through hole;

[0068] The nut body can be inserted from the second end of the connecting pipe, through the bulging portion, and onto the non-bulging portion;

[0069] The nut clamp tube is a tube structure formed by splicing or embedding, and can be formed by splicing or embedding an external tube surrounding the non-bulging part or its outer layer.

[0070] Optionally, the nut clamp tube is formed by splicing or embedding two or more clamp tube walls;

[0071] Each clamping tube wall of the nut clamping tube is an arc-shaped tube wall and has the same length;

[0072] The arc sizes of the clamping tube walls are the same or different.

[0073] Optionally, the nut clamp tube is formed by splicing a tube structure with a tube seam;

[0074] The pipe seam is arranged along the direction where the nut clamps the pipe.

[0075] Optionally, the nut through hole is arranged along the direction of the fastening nut and passes through the nut body;

[0076] The diameter of the nut through hole is greater than the maximum outer diameter of the bulging portion.

[0077] Optionally, a threaded structure is provided on the inner wall of the nut body, and the threaded structure is located at the second end of the nut body and is used to cooperate with the threaded structure of the fastening bolt for threaded connection.

[0078] Optionally, the nut body further has a limiting portion;

[0079] The limiting portion is located inside the nut through hole and on the first side of its thread structure;

[0080] The limiting portion is used for bearing the nut clamping tube.

[0081] Optionally, the limiting portion at least has a limiting body and a center hole; wherein,

[0082] The limiting body is arranged on the inner wall of the nut 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 nut through hole.

[0083] Optionally, at least the outer diameter of the nut clamping tube is greater than the diameter of the central hole, so that the limiting body can bear the nut clamping tube;

[0084] The diameter of the central hole is greater than the maximum outer diameter of the bulging portion, so that the nut body can pass through the bulging portion.

[0085] Optionally, the limiting portion is a circular ring structure;

[0086] 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;

[0087] The inner diameter of the nut clamp tube ≥ the diameter of the center hole.

[0088] Optionally, the entire end surface of the first end of the nut clamp tube is located on the limiting body.

[0089] Optionally, the limiting portion further has a plurality of through holes, which are opened on the limiting body; the nut 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.

[0090] Optionally, by setting marks at visible positions of the nut 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.

[0091] 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 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 nut 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 that are assembled to form the nut clamping tube.

[0092] Optionally, the limiting portion is a circular ring structure;

[0093] 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;

[0094] The diameter of the center hole is greater than the inner diameter of the nut clamp tube.

[0095] Optionally, the outer end surface of the first end of the nut clamp tube is located on the limiting body, and the inner end surface is located in the center hole.

[0096] Optionally, the limiting portion is formed by a plurality of convex teeth distributed along the circumferential direction on the inner wall of the nut 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;

[0097] The inner diameter of the nut clamp tube is ≥ the diameter of the center hole.

[0098] Optionally, the outer end surface and the inner end surface of the first end of the nut clamp tube are both located on the limiting body. Optionally, when the nut clamp tube is formed by splicing a tube structure with a tube seam, part of its end surface is located in the gap.

[0099] Optionally, when the nut 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 nut clamp, so that each clamp wall has at least one convex tooth to support it.

[0100] 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 nut tube clamping, so that a portion of the end surface of the first end of each tube clamping wall is located in the gap.

[0101] Optionally, the limiting portion is formed by a plurality of convex teeth distributed along the circumferential direction on the inner wall of the nut 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;

[0102] The diameter of the center hole is greater than the inner diameter of the nut clamp tube.

[0103] Optionally, the outer end surface of the first end of the nut clamp tube is located on the limiting body, and the inner end surface is located in the center hole.

[0104] Optionally, when the nut clamp tube is formed by splicing a tube structure with a tube seam, a portion of the outer end surface of the first end is still located in the gap.

[0105] Optionally, when the nut 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 nut clamp, so that each clamp wall has at least one convex tooth to support it.

[0106] Optionally, the arc length of the convex teeth is ≥ the arc length of the clamping tube wall; or,

[0107] 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.

[0108] Optionally, the tube length of the nut clamp tube is ≤ the maximum tube length of the non-bulging part between the nut body sleeved on the non-bulging part and the bulging part.

[0109] 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;

[0110] 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.

[0111] 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,

[0112] 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.

[0113] Optionally, the outer diameter of the nut clamp tube is less than or equal to the aperture of the nut through hole;

[0114] The inner diameter of the nut 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 pressed into the outer tube.

[0115] Optionally, when the inner diameter of the nut clamp tube is smaller than the second composite outer diameter R2, the first clamping portion may be the second end of the nut clamp tube; wherein the second composite outer diameter R2 is the maximum outer diameter of the bulging portion pressed into the outer tube.

[0116] Optionally, the first clamping part is a circular ring structure disposed in the nut clamp 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 nut clamp tube along the circumferential direction; 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 nut clamp tube is equal to the aperture of the nut through hole, the nut body tightens the nut clamp tube formed by the splicing through its inner wall, so that the nut clamp tube maintains a tube structure state;

[0117] When the outer diameter of the nut clamp tube is less than the aperture of the nut through hole, a tightening structure is provided on the outer wall of the nut clamp tube, and the outer diameter of the tightening structure is equal to the aperture of the nut through hole. The nut body tightens the tightening structure through its inner wall to keep the nut clamp tube in a tube structure state.

[0118] Optionally, the tight hoop structure is a complete circular ring structure; or,

[0119] 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 nut clamping tube.

[0120] Optionally, the nut clamp tube has a first positioning structure for positioning adjacent clamp tube walls at adjacent locations so that both ends of the two adjacent clamp tube walls are aligned;

[0121] 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.

[0122] Optionally, at the adjoining portion of the nut clamp tubes, the location, quantity and shape of the positioning pins on the side surface of one adjacent clamp tube wall match the location, quantity and shape of the positioning grooves on the side surface of another adjacent clamp tube wall.

[0123] Optionally, each tube clamping wall is provided with a concave-convex structure;

[0124] At each adjacent part of the nut clamp tube, the concave-convex structures of adjacent clamp tube walls are interlocked to form a complete tube wall at the interlocking part; at the same time, the concave-convex structures of adjacent clamp tube walls also bite or hook each other to form a connection between adjacent clamp tube walls and keep the nut clamp tube in a tube structure state.

[0125] Optionally, at each adjacent part of the nut clamp tube, the concavo-convex structure of one adjacent clamp tube wall is a groove opened on the side, the groove extends along the direction where the nut clamp tube is located, and its extension length is equal to the tube length of the nut clamp tube; the concavo-convex structure of another adjacent clamp tube wall is a convex block arranged on the side, the convex block extends along the direction where the nut clamp tube is located, and its extension length is equal to the tube length of the nut clamp tube; or,

[0126] The concave-convex structure of another adjacent clamping tube wall is a plurality of protrusions arranged on the side surface, the plurality of protrusions are distributed along the direction of the nut clamping tube, and a protrusion is arranged at the second end of the nut clamping tube, each protrusion extends along the direction of the nut clamping tube, and its extension length is less than the length of the nut clamping tube.

[0127] Optionally, at each adjacent part of the nut clamp tube, the concave-convex structure of an adjacent clamp tube wall is a plurality of grooves opened on the side surface, the plurality of grooves are distributed along the direction of the nut clamp tube, and each groove extends along the direction of the tube diameter and penetrates the tube wall;

[0128] The concave-convex structure of another adjacent clamping tube wall is a plurality of protrusions arranged on the side surface, the plurality of protrusions are distributed along the direction of the nut clamping tube, each protrusion extends along the direction of the tube diameter, and its extension length is equal to the tube wall thickness.

[0129] Optionally, at each adjacent portion of the nut clamp tube, an upper protrusion of an adjacent clamp tube wall is embedded in a groove of another adjacent clamp tube wall;

[0130] 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.

[0131] Optionally, at each adjacent portion of the nut 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.

[0132] 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;

[0133] 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;

[0134] 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.

[0135] 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,

[0136] 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.

[0137] Optionally, at each adjacent part of the nut 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 nut clamp tube, and the extension length is equal to the tube length of the nut clamp tube;

[0138] The concave-convex structure of the other adjacent clamping tube wall is a groove opened on the outer wall, and the groove is the second groove, which extends along the direction of the nut clamping tube, and the extension length is equal to the tube length of the nut clamping tube. Optionally, at each adjacent part of the nut clamping tube, the outer side wall of an adjacent clamping tube wall is embedded in the groove of another adjacent clamping tube wall; wherein,

[0139] 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;

[0140] 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.

[0141] 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;

[0142] 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.

[0143] Optionally, the first groove or the second groove further has a port;

[0144] The outer side wall of the first groove is embedded in the second groove from the end of the second groove;

[0145] The outer side wall of the second groove is embedded in the first groove from the end of the first groove.

[0146] 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.

[0147] 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.

[0148] Optionally, a first groove is provided on the inner walls on both sides of the tube clamping wall as a concave-convex structure; or, a second groove is provided on the outer walls on both sides of the tube clamping wall as a concave-convex structure; or, a first groove is provided on the inner wall on one side of the tube clamping wall as a concave-convex structure, and a second groove is provided on the outer wall on the other side as a concave-convex structure.

[0149] Optionally, each tube clamping wall of the nut tube clamping tube is a tube wall structure in the shape of a U-shaped tube, and the tube wall structure in the shape of a U-shaped tube is a concave-convex structure, and adjacent tube clamping walls in the nut tube clamping tube are arranged in opposite directions.

[0150] Optionally, each clamping tube wall has a base wall, a main wall, a side wall and a groove;

[0151] 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 nut clamp tube.

[0152] Optionally, at each adjacent portion of the nut clamp tube, the side wall of one adjacent clamp tube wall is embedded in the groove of another adjacent clamp tube wall;

[0153] 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.

[0154] Optionally, at each end of the nut 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;

[0155] 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 nut clamp tube.

[0156] 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:

[0157] The nut body is inserted from the second end of the connecting pipe, through the bulging portion, and onto the non-bulging portion;

[0158] The fastening bolt is sleeved on the external tube;

[0159] 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 bolt is located on the second side of the bulging portion;

[0160] The nut clamp is installed in the nut body to form a fastening nut; the formed fastening nut is sleeved on the non-bulging part and is located on the first side of the bulging part;

[0161] The fastening nuts and fastening bolts on both sides of the bulging part are screwed tight, and the fastening nuts and fastening bolts apply a pushing force in opposite directions to the bulging part pressed into the external pipe, thereby fixing the connection between the connecting pipe and the external pipe and forming multiple seals at the connection.

[0162] Optionally, at the non-bulging portion between the nut 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 nut clamping tube, and the nut clamping tube is installed into the nut through hole along the non-bulging portion to form a fastening nut; or,

[0163] At the non-bulging portion between the nut body and the bulging portion, each clamping tube wall is respectively installed into the nut body along the non-bulging portion, and is assembled in the nut through hole to form a nut clamping tube and a fastening nut.

[0164] Optionally, at the non-bulging portion between the nut body and the bulging portion, the tube seam of the nut clamp is opened, the nut clamp is wrapped around the non-bulging portion or the external tube of its outer layer, and the nut clamp is installed into the nut through hole along the non-bulging portion to form a tightening nut.

[0165] Optionally, tighten the fastening nut and the fastening bolt to a moderately tight position.

[0166] 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:

[0167] The fastening nuts and fastening bolts are screwed loose;

[0168] The connecting pipe is withdrawn from the external pipe and is disassembled from the external pipe;

[0169] The fastening nut is separated from the bulging portion along the non-bulging portion, and the nut clamping tube or the clamping tube wall thereof is removed from the nut through hole;

[0170] The nut body is removed from the second end of the connecting pipe through the bulging portion;

[0171] Remove the fastening bolts from the outer tube.

[0172] Optionally, the nut clamp tube is pushed out of the nut body, the adjacent clamp tube walls are disassembled, and the nut clamp tube is removed from the non-bulging portion; or,

[0173] Push the clamp tube wall out of the nut body and remove it from the non-bulging part.

[0174] Optionally, the nut clamp tube is pushed out of the nut body, the tube slit of the nut clamp tube is stretched open, and the nut clamp tube is removed from the non-bulging portion.

[0175] Compared with the prior art, the present invention provides a container that can be connected with a pipe and a method for connecting and disassembling a fastening nut and a pipe, which has the following beneficial effects:

[0176] (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.

[0177] (2) The present invention disassembles the fastening nut into two parts, a nut body and a nut clamping tube, and the nut clamping tube is formed by splicing or mosaicking, so that the fastening nut can be set on the first side of the bulging portion pressed into the external tube, and can cooperate with the fastening bolt to clamp and push the bulging portion pressed into the external tube, thereby solving the problem that ordinary fastening nuts cannot simultaneously achieve both being placed on the first side of the bulging portion and clamping and pushing the bulging portion pressed into the external tube.

[0178] (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.

[0179] (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

[0180] Figure 1 It is a half-sectioned and exploded schematic diagram of a container connectable to pipes in Embodiment 1 of the present invention;

[0181] 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;

[0182] 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;

[0183] 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;

[0184] Figure 5 It is a structural schematic diagram of the nut body in the first embodiment of the present invention;

[0185] Figure 6 It is a half-section schematic diagram of the nut body in the first embodiment of the present invention;

[0186] Figure 7 A half-section schematic diagram of a fastening nut and a partial enlarged diagram of an end surface of a nut clamping tube in a first embodiment of the present invention;

[0187] Figure 8 It is a schematic diagram of the state in which the tube clamping walls are spliced ​​together to form a nut tube clamping in the first embodiment of the present invention;

[0188] Fig. 9 A half-section schematic diagram of a fastening bolt in Embodiment 1 of the present invention;

[0189] Fig.10 It is a half-section schematic diagram of a two-way container body in the second embodiment of the present invention;

[0190] Fig.11 It is a half-section schematic diagram of a four-way container body in the second embodiment of the present invention;

[0191] Fig.12 It is a half-section schematic diagram of the container body in the third embodiment of the present invention;

[0192] Fig.13 A half-section schematic diagram of a fastening nut and a partial enlarged diagram of an end surface of a clamping tube wall in a fourth embodiment of the present invention;

[0193] Fig.14 It is an assembly cross-sectional view of the nut clamping tube in the nut body and a top view of its limiting portion and a top view of the limiting portion carrying the nut clamping tube in the fifth embodiment of the present invention;

[0194] 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;

[0195] Fig.16 It is a schematic diagram of the assembly of the nut clamping tube in the nut body in the sixth embodiment of the present invention, a top view of its limiting portion, and a top view of the limiting portion carrying the nut body;

[0196] Fig.17 It is a schematic diagram of assembling the tube clamping wall in the nut body in the sixth embodiment of the present invention;

[0197] 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;

[0198] Fig.19 It is an inverted assembly diagram of the nut clamping tube in the nut body in the seventh embodiment of the present invention, a bottom view of its limiting portion, and a bottom view of the limiting portion carrying the nut body;

[0199] Fig. 20 This is a structural schematic diagram of a nut clamp pipe with a pipe gap in Embodiment 8 of the present invention;

[0200] Fig.21 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 Embodiment 9 of the present invention;

[0201] Fig. 22 It is a schematic diagram of the state where three clamping tube walls are assembled to form a bolt clamp in the tenth embodiment of the present invention;

[0202] Fig.23 A schematic diagram showing the comparison of the splicing state of the clamping tube wall in the eleventh embodiment of the present invention;

[0203] Fig.24 A schematic diagram showing the comparison of the states of the nut clamping the tube and pushing the bulging portion in the twelfth embodiment of the present invention;

[0204] Fig.25 A schematic diagram showing the comparison of the states of the fastening bolt clamping and pushing the bulging portion in the twelfth embodiment of the present invention;

[0205] Fig.26 It is a schematic diagram of the state of the nut clamping tube clamping and pushing the bulging portion in the thirteenth embodiment of the present invention;

[0206] Fig. 27 This is a schematic diagram of the distribution of each fastening structure in the fourteenth embodiment of the present invention;

[0207] Fig.28 It is a schematic diagram of the assembly of the nut clamping tube and the nut body in the fourteenth embodiment of the present invention;

[0208] Fig.29 It is a schematic diagram of the state in which the tube clamping wall is engaged to form a nut tube clamping in the fifteenth embodiment of the present invention;

[0209] Fig.30 It is a schematic diagram of the end of the nut clamp tube formed by interlocking in the fifteenth embodiment of the present invention;

[0210] Fig.31 This is a schematic diagram of the structure of the tube clamping wall in the fifteenth embodiment of the present invention;

[0211] Fig.32 This is a schematic diagram of a state in which the tube clamping wall is engaged to form a nut tube clamping in Embodiment 16 of the present invention;

[0212] Fig.33 A schematic diagram of the outer wall of the nut clamp tube formed by interlocking in the sixteenth embodiment of the present invention;

[0213] Fig.34 A schematic diagram of the outer wall of the nut clamp tube formed by interlocking in the seventeenth embodiment of the present invention;

[0214] Fig.35 This is a schematic diagram of the structure of the tube clamping wall in the seventeenth embodiment of the present invention;

[0215] Fig.36It is a schematic diagram of the end of the nut clamp tube formed by interlocking in the seventeenth embodiment of the present invention;

[0216] Fig.37 It is a schematic diagram of the state in which the tube clamping wall is engaged to form a nut tube clamping in the eighteenth embodiment of the present invention;

[0217] Fig.38 It is a schematic diagram of the assembly of the nut body and the fastening bolt in the nineteenth embodiment of the present invention. DETAILED DESCRIPTION

[0218] 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.

[0219] Embodiment 1

[0220] 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 nut, and a fastening bolt 140; wherein the fastening nut further includes a nut body 120 and a nut clamp tube 130. In the tube-connectable container 100, the container body 110 is connected to the external tube 150 to form a bulging connection; the fastening nut and the fastening bolt 140 are respectively arranged on both sides of the connection, and the fastening nut and the fastening bolt 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.

[0221] 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.

[0222] 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 3 Herein, 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.

[0223] 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.

[0224] 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.

[0225] 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).

[0226] 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.

[0227] In this embodiment, the bulging portion 112 and the non-bulging portion connected thereto are pressed into the outer tube 150. Figure 4 As 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.

[0228] 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 nut, 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 bolts, it can form a sealing portion 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 portion III with the external tube.

[0229] 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.

[0230] 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 receives 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 can provide 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.

[0231] 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.

[0232] 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.

[0233] 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 sets a fastening nut and a fastening bolt on both sides of the bulging part pressed into the external tube. When the fastening nut and the fastening bolt 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 nut or the fastening bolt, 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.

[0234] In the present invention, a pair of fastening nuts and fastening bolts (i.e., a fastening nut and a fastening bolt matched therewith) are required to be provided 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, and fix the connection between the connecting tube and the external tube. Therefore, the number of fastening nuts and fastening bolts provided in the tube-connectable container can be determined according to the number of connecting tubes or bulging portions. In this embodiment, the container body 110 has a connecting tube (or a bulging portion 112), and therefore, the tube-connectable container 100 can be equipped with a pair of fastening nuts and fastening bolts. The fastening nut will be described in detail below.

[0235] In the present invention, the fastening nut is sleeved on the connecting pipe, specifically, on the non-bulging part, and the fastening nut is placed on the first side of the bulging part. Each fastening nut further comprises a nut body and a nut clamping tube.

[0236] like Figure 5 and Figure 6 As shown, a nut through hole 123 is provided inside the nut body 120; the nut through hole 123 is arranged along the direction of the fastening nut and penetrates the nut body 120; the aperture of the nut through hole 123 is greater than the maximum outer diameter R of the bulging portion, so that the nut body 120 can pass through the bulging portion 112 from the second end of the connecting pipe and be inserted into the non-bulging portion 113, so that the nut body 120 is placed on the first side of the bulging portion 112. A threaded structure is provided on the inner wall of the nut body 120, and the threaded structure is located at the second end of the nut body, which is used to cooperate with the threaded structure of the fastening bolt for threaded connection. Anti-slip edges can also be provided on the outer wall of the nut body 120 to facilitate personnel to operate and hold or use auxiliary tools for screwing operations.

[0237] The nut body 120 also has a limiting portion 124, which is located inside the nut body 120 (or the nut through hole 123) and on the first side of its threaded structure, and the limiting portion 124 is used to carry the nut clamping tube. In the present invention, the limiting portion at least has a limiting body and a center hole; wherein the limiting body is arranged on the inner wall of the nut body (or the hole wall of the nut through hole) along the circumferential direction, and at least the outer diameter of the nut clamping tube is greater than the aperture of the center hole, so that the limiting portion can carry the nut 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 nut through hole, and the aperture of the center hole is greater than the maximum outer diameter R of the bulging part, so that the nut body 120 can be inserted from the second end of the connecting tube, through the bulging part 112, and on the non-bulging part 113, so that the nut body 120 is placed on the first side of the bulging part 112.

[0238] 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 nut clamp tube 130> the inner diameter of the nut 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 nut body 120; the limiting portion is arranged at the first end of the nut body, which has the effect of blocking larger impurities and foreign matter from entering the nut through hole, and the overall structure of the nut body is beautiful and easy to demold. In the present invention, the limiting portion 124 and the nut body 120 can be prepared by integral molding.

[0239] In the present invention, the aperture of the nut 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 nut body 120 can be inserted from the second end of the connecting tube, through the bulging portion 112, and onto the non-bulging portion 113, so that the nut body 120 is placed on the first side of the bulging portion 112. However, this also means that the nut 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 external tube by clamping the nut tube.

[0240] In the present invention, the nut 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 nut clamping tube can be directly arranged 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 nut clamping tube has a first clamping part, and the nut 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.

[0241] In the present invention, the aperture of the center hole is less than the outer diameter of the nut clamp tube and less than the aperture of the nut through hole. The outer diameter of the nut clamp tube is less than the aperture of the nut through hole, so that the nut clamp tube or its clamp tube wall can be installed in the nut through hole 123 (or the nut body 120); the outer diameter of the nut clamp tube is greater than the aperture of the center hole, so that the nut clamp tube or its clamp tube wall installed in the nut through hole 123 (or the nut body 120) reaches the limiting body 124a, and at least the outer end surface of its first end can be mounted on the limiting body, the limiting body carries the nut clamp tube and blocks the movement of the nut clamp tube, and the limiting part limits and supports the nut clamp tube through the limiting body.

[0242] 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 nut 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 nut 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 nut clamping tube can be clamped by the first clamping part and pushed into the bulging part of the external tube.

[0243] In this embodiment, the nut clamp tube 130 is a tube structure formed by two clamp tube walls 131 and 132. The outer diameter of the nut clamp tube 130 = the aperture of the nut through hole 123, the inner diameter of the nut clamp tube 130 ≥ the aperture of the center hole 124b, and the inner diameter of the nut clamp tube 130 = the first composite outer diameter R1.

[0244] The outer diameter of the nut clamp tube 130 (also the outer diameter of the clamp tube walls 131, 132) = the aperture of the nut through hole 123, so the clamp tube walls 131, 132 can be inserted into the nut through hole 123, and the outer walls of the clamp tube walls 131, 132 are tightly fitted with the inner wall of the nut body 120 (i.e., the hole wall of the nut through hole), such as Figure 7 As shown, the nut body 120 can clamp the assembled nut clamp tube 130 through its inner wall (or the nut through hole 123 can clamp the assembled nut 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.

[0245] The outer diameter of the nut clamp tube 130> the inner diameter of the nut clamp tube 130≥ the aperture of the center hole 124b, so the nut clamp tube 130 or its clamp tube wall in the nut through hole 123 (or the nut body 120) reaches the limit body 124a, and the entire end surface of its 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 nut clamping tube; the space between the second end of the nut clamping tube and the threaded structure of the nut body is used to accommodate the bulging portion pressed into the external tube.

[0246] The inner diameter of the nut 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, surrounding the non-bulging portion 113 or the outer layer of the external tube 150 to form a tube structure, and the formed nut clamp tube 130 itself cannot be pressed into the bulging portion 112 of the external tube, and the nut 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 nut clamp tube is used as the first clamping portion 133, and the second end of the nut 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 nut clamp tube 130 has a simple structure and is easy to manufacture.

[0247] At the non-bulging part between the nut 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 nut clamping tube 130, and are inserted into the nut body 120 along the non-bulging part 113 to form a fastening nut; or, at the non-bulging part between the nut body (sleeved on the non-bulging part 113) and the bulging part, the clamping tube walls 131 and 132 are respectively inserted into the nut body 120 along the non-bulging part 113, and are assembled in the nut through hole 123 to form the nut clamping tube 130 to form a fastening nut. The formed fastening nut is sleeved on the connecting tube, more precisely, on the non-bulging part 113, and is located on the first side of the bulging part.

[0248] At the non-bulging portion between the nut body (sleeved on the non-bulging portion 113) and the bulging portion, the nut clamp tube or its clamp tube wall is inserted into the nut through hole, which means that the tube length of the nut clamp tube or its clamp tube wall is ≤ the maximum tube length of the non-bulging portion between the nut body (sleeved on the non-bulging portion) and the bulging portion. In this way, the non-bulging portion has enough space to accommodate the nut clamp tube or each clamp tube wall so that it can be inserted into the nut through hole (from the second end of the nut body).

[0249] In the present invention, each tube clamping wall of the nut clamping tube is an arc-shaped tube wall and has the same length. In this embodiment, the arc sizes of the tube clamping walls 131 and 132 are different, 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 nut 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 nut clamping tube, nor does it limit it to other related examples. It can be designed according to actual application conditions, as long as the tube clamping walls together can just form a tube structure (nut clamping tube).

[0250] 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 nut 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 bolt will be described in detail below.

[0251] In the present invention, the fastening bolts 140 are inserted into the outer tube 150, and the fastening bolts 140 are placed on the second side of the bulging portion. Each fastening bolt 140 has a bolt rod 141, a bolt head 142 and a bolt through hole 144. Fig. 9 As shown. The outer wall of the bolt rod 141 is provided with a threaded structure, which is located at the first end of the bolt rod and is used to cooperate with the fastening nut for threaded connection. The bolt head 122 is located at the second 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 to perform screwing operations. In the present invention, the bolt rod, bolt head and bolt through hole of the fastening bolt can be prepared by integral molding.

[0252] The inner diameter of the bolt through hole 144 is greater than or equal to the outer diameter of the external tube 150 , so that the external tube 150 can pass through the fastening bolt 140 and the fastening bolt 140 can be sleeved on the external tube 150 .

[0253] The inner diameter of the bolt through hole 144 is less than the second composite outer diameter R2, and the second composite outer diameter R2 is the outer diameter at the maximum point 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 bolt 140 (sleeved on the external tube) is located on the second side of the bulging portion 112, and the fastening bolt 140 itself cannot pass through the bulging portion 112 pressed into the external tube, and the fastening bolt 140 can clamp and push the bulging portion pressed into the external tube through its first end close to the bulging portion. Therefore, the present invention uses the first end of the fastening bolt as the second clamping portion 141, and the inner diameter of the second clamping portion 141 is the inner diameter of the bolt through hole 144. The outer diameter of the external tube 150 ≤ the second clamping portion 141 < the second composite outer diameter R2, and the second clamping portion 141 can be regarded as a circular ring structure, and its inner wall is a tubular curved surface or a cylindrical curved surface.

[0254] 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 nut sleeved on the non-bulging portion 113 is screwed and tightened with the fastening bolt 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 nut 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 nut (or the nut clamping tube 130) cannot pass through the bulging portion 112 and the bulging portion cannot slip out from the fastening nut, and the fastening nut is clamped and pushed into the bulging portion of the external tube by the inner edge 133o. Here, the external tube 150 and the first pressure-bearing surface 112a are connected. The surfaces 112a are pressed tightly together and fit tightly together, 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 (or the first end of the fastening bolt), 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 bolt 140 cannot pass through the bulge 112, and the bulge cannot slip out of the fastening bolt. The fastening bolt 140 is clamped and pushed into the bulge of the external tube through the inner edge 141o. Here, the external tube 150 and the second pressure-bearing surface 112b are pressed tightly together and fit tightly together, thereby forming a sealing point II between the second pressure-bearing surface 112b and the external tube.

[0255] The fastening nuts and fastening bolts 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.

[0256] 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.

[0257] For example, the container body 110, the fastening nut (including the nut body 120 and the nut clamp tube 130), the fastening bolt 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.

[0258] In this embodiment, the method for connecting the tube-connectable container 100 and the external tube 150 comprises the following steps:

[0259] The nut body 120 is inserted from the second end of the connecting pipe, through the bulging portion 112, and onto the non-bulging portion 113;

[0260] The fastening bolt 140 is inserted into the outer tube 150;

[0261] 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 bolt 140 is located on the second side of the bulging portion 112;

[0262] At the non-bulging portion between the nut 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 nut clamping tube 130, and the nut clamping tube 130 is installed into the nut through hole 123 along the non-bulging portion 113 to form a fastening nut; or, at the non-bulging portion between the nut body 120 and the bulging portion 112, the clamping tube walls 131 and 132 are respectively installed into the nut body 120 along the non-bulging portion 113, and are assembled in the nut through hole 123 to form a nut clamping tube 130 and a fastening nut; the formed fastening nut is sleeved on the non-bulging portion 113 and is located on the first side of the bulging portion 112;

[0263] The fastening nuts and fastening bolts 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 nuts and fastening bolts, so as to fix the connection between the connecting pipe and the external pipe and form multiple seals at the connection;

[0264] The operation sequence of the above steps can be adjusted appropriately without affecting other steps;

[0265] Repeat the above steps to connect and fix other connecting pipes to the external pipe.

[0266] In this embodiment, the disassembly method between the tube-connectable container 100 and the external tube 150 includes the following steps:

[0267] The fastening nut and the fastening bolt 140 are screwed off;

[0268] The connecting tube is withdrawn from the external tube 150 and is disassembled from the external tube 150;

[0269] The fastening nut is separated from the bulging portion 112 along the non-bulging portion, and the nut clamping tube 130 or the clamping tube walls 131 and 132 are taken out from the nut through hole 123 (or the nut body 120);

[0270] The nut body 120 is removed from the second end of the connecting pipe through the bulging portion 112;

[0271] Remove the fastening bolt 140 from the outer tube 150;

[0272] The operation sequence of the above steps can be adjusted appropriately without affecting other steps;

[0273] Repeat the above steps to disassemble and separate other connecting pipes from the external pipe.

[0274] The present invention arranges a nut clamping tube formed by splicing in the nut body, so that the fastening nut 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 nuts on both sides of the bulging part are screwed with the fastening bolts, so that the bulging part and the external tube of the 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.

[0275] Embodiment 2

[0276] 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.

[0277] 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.

[0278] 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.

[0279] 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.

[0280] Embodiment 3

[0281] 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 .

[0282] 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.

[0283] 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.

[0284] 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 nut (including the nut body and the nut clamping tube), the fastening bolt, and the external tube can all refer to Example 1, and will not be repeated here.

[0285] Embodiment 4

[0286] For the above-mentioned embodiment 1, the outer diameter of the nut clamp tube>the inner diameter of the nut clamp tube≥the aperture of the center hole 124b, and the entire end surface of the first end of the nut clamp tube (or its outer end surface 130w and inner end surface 130n) are both on the limiting body 124a.

[0287] The main difference from the first embodiment is that in the fourth embodiment, the outer diameter of the nut clamp tube>the diameter of the center hole>the inner diameter of the nut clamp tube, and the outer end surface 430w of the first end of the nut clamp tube is located on the limiting body 424a.

[0288] In the first embodiment, (the outer diameter of the nut clamp tube>) the inner diameter of the nut clamp tube≥the aperture diameter of the center hole, then the nut clamp tube or the clamp tube wall inserted into the nut through hole, its entire end face of the first end (including the outer end face 130w and the inner end face 130n) is on the limiting body 124a, and the limiting body 124a blocks the movement of the nut clamp tube, limits and supports the nut clamp tube by supporting the entire end face of the first end of the nut clamp tube; however, in the first embodiment, the first end of the nut body cannot directly contact the end face of the nut clamp tube or the clamp tube wall, and cannot push the nut clamp tube or the clamp tube wall.

[0289] In this embodiment, the outer diameter of the nut clamp tube>the diameter of the center hole>the inner diameter of the nut clamp tube, then the nut clamp tube 430 or the clamp tube wall inserted into the nut through hole, its first end outer end face 430w is located on the limiting body 424a, and its first end inner end face 430n is located in the center hole 424b, such as Fig.13As shown. The limiting body 424a blocks the movement of the nut clamp tube, limits the position of the nut clamp tube and supports the nut clamp tube by supporting the outer end surface 430w of the first end of the nut clamp tube. Its inner end surface 430n is located in the center hole 424b, so that the first end of the nut body can directly contact the nut 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 nut body can be entered from the first end of the nut body by means of a pushing tool, the nut clamping tube 430 or each clamping tube wall can be pushed out from the second end of the nut body (or the nut through hole), so that the nut clamping tube 430 or each clamping tube wall can be quickly removed from the nut body (or the nut 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 nut through hole, extending to and pushing the nut clamping tube or its clamping tube wall.

[0290] In this embodiment, the outer diameter of the nut clamp tube is designed to be greater than the diameter of the center hole and greater than the inner diameter of the nut clamp tube, so that the limiting part can realize the bearing and limiting of the nut clamp tube while also realizing the rapid removal of the nut clamp tube 430 or its clamp tube wall from the nut body (or the nut through hole), 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 bolts, and the external tube can all refer to the embodiment 1, and will not be repeated here.

[0291] Embodiment 5

[0292] 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.

[0293] 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 nut 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)).

[0294] In the first embodiment, the entire end surface of the first end of the nut clamp tube or each clamp tube wall inserted into the nut through hole (including the inner end surface and the outer end surface) is on the limiting body 124a, and the limiting body 124a blocks the movement of the nut clamp tube and limits and supports the nut clamp tube by supporting the entire end surface of the first end of the nut clamp tube; however, in the first embodiment, the first end of the nut body cannot directly contact the end surface of the nut clamp tube or the clamp tube wall, and cannot push the nut clamp tube or the clamp tube wall.

[0295] In this embodiment, the end surface of the first end of the nut clamp tube or each clamp tube wall inserted into the nut through hole (including the inner end surface and the outer end surface) is still on the limiting body 524a as a whole. The limiting body 524a blocks the movement of the nut clamp tube, limits and supports the nut clamp tube by supporting the end surface of the first end of the nut clamp tube (see Fig.14 At the same time, the nut 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 nut body 520 from the first end of the nut body, it can directly push the nut clamping tube 530 or the clamping tube wall from the corresponding penetration hole 524c.

[0296] In the present invention, the nut clamp tube or each clamp tube wall corresponds to at least one through hole, which means that at least one through hole needs to be opened on the limit body, the nut clamp tube corresponds to at least one through hole, and part of the end face is located at the corresponding through hole; for the nut clamp tube formed by splicing or embedding a plurality of clamp tube walls, at least a corresponding number of through holes need to be opened on the limit body, each clamp tube wall corresponds to at least one through hole, and part of the end face is located at the corresponding through hole. In this way, the pushing tool can push the nut clamp tube or each clamp tube wall from the corresponding through hole, push the nut clamp tube or each clamp tube wall out from the second end of the nut body (or nut through hole), and realize the rapid removal of the nut clamp tube or the clamp tube wall from the nut body (or nut 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 through hole and the nut through hole, extending to and pushing the nut clamp tube or its clamp tube wall.

[0297] In this embodiment, the nut clamp tube 530 has two clamp tube walls 531 and 532 with different arc lengths (the clamp tube wall 531 is a 1 / 3 arc, the clamp tube wall 532 is a 2 / 3 arc, and the arc length of the clamp tube wall 531 is less than the arc length of the clamp tube wall 532). Therefore, at least two through holes 524c need to be provided on the limit body 524a. When two or more through holes are provided on the limit body, the distribution of the through holes may be as follows:

[0298] 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.

[0299] 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 nut body and understand the distribution of the internal through holes. Therefore, when the clamp wall is installed into the nut 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 nut body 520 from the first end of the nut body, it cannot directly contact the end face of the tube clamping wall through any through hole to push the tube clamping wall, and it is also impossible to push the tube clamping wall out from the second end of the nut body (or the nut through hole), which defeats the purpose of providing the through hole.

[0300] In the above case, in order to avoid the situation where the clamped tube wall does not correspond to any through hole, it is possible to set marks on the outer wall or end of the nut body and other visible positions according to the distribution of through holes, and specify the adjacent positions of each adjacent tube 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 region D between any two adjacent marks, and the clamping wall located in the limiting body region D corresponds to at least one through hole.

[0301] 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 nut tube clamping wall.

[0302] In the present invention, there are at least N through holes evenly distributed in the circumferential direction on the limiting body (or the ring body of the circular ring structure), which can achieve the arc length between any two adjacent through holes < the arc length of any tube clamping wall among all the tube clamping walls forming the nut clamping tube; wherein N is a positive integer, which can be estimated according to the formula N×min(L1)≥the circumference of the nut clamping tube>(N-1)×min(L1), wherein the circumference of the nut clamping tube 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 nut clamping tube.

[0303] 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 nut clamping tube, and thus 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 nut clamping tube can be achieved.

[0304] In this embodiment, the nut clamp tube 530 is formed by splicing a clamp tube wall 531 (which is a 1 / 3 arc) and a clamp tube wall 532 (which is a 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 nut clamp tube; it can be seen from the above estimation formula that at least three (N=3) through holes 524c should be set on the limit body 524a and evenly distributed in the circumferential direction (refer to Fig.15 In (4), 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 an arc, and 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 limiting body is less than the arc length of any tube clamping wall among all the tube clamping walls forming the nut tube clamping; this means that any tube clamping wall (including the tube clamping wall with the smallest arc length, such as the tube clamping wall 531) is inserted into the nut through-hole from any position, and 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 nut body from the first end of the nut 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 nut body (or the nut through-hole), so as to realize the rapid removal of each tube clamping wall from the nut body (or the nut through-hole). The materials and structures of the container body, nut clamp tube, fastening bolts, and external tube of this embodiment can all be found in the first embodiment, and will not be described in detail here.

[0305] Embodiment 6

[0306] 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.

[0307] 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 nut body 620 (or the hole wall of the nut 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.

[0308] Similar to the first embodiment, in the sixth embodiment, the outer diameter of the nut clamp tube> the inner diameter of the nut clamp tube≥ the diameter of the center hole 624b. When the nut clamp tube 630 or the clamp tube wall is inserted into the nut through hole and reaches the limit body 624a (or the convex tooth), the outer end surface and the inner end surface of the first end are both on the limit body 624a (or the convex tooth). Fig.16 As shown in (3), the limiting body 624a (or the protruding teeth) blocks the movement of the nut clamp tube by supporting the inner and outer end surfaces of the nut clamp tube, and limits and supports the nut clamp tube.

[0309] In this embodiment, the nut 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 nut 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 nut clamp tube 630 from the gap 624c, and push the nut clamp tube 630 out from the second end of the nut body 620 (or the nut through hole), so that the nut clamp tube 630 can be quickly removed from the nut body (or the nut through hole), providing convenience for the disassembly and maintenance of the container device.

[0310] From the above, it can be seen that when the nut clamp tube is a tube body structure with a tube gap, and the outer diameter of the nut clamp tube is greater than the inner diameter of the nut clamp tube and greater than the aperture of the center hole, regardless of the arc length of the convex teeth and the gap, the limiting part can support the nut clamp tube and the nut clamp tube can be quickly removed from the nut body.

[0311] In this embodiment, the nut 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 convex 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 nut clamping tube, 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 nut body and understand the distribution position of the internal convex teeth. Therefore, when installing the tube clamping wall or the nut clamping tube into the nut 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 nut 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.

[0312] In order to avoid the above-mentioned situation that the clamping tube wall slips off, 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 clamping tube wall among all the clamping tube walls forming the nut clamping tube, and the arc length max (L3) of the maximum gap is designed to be less than the arc length min (L1) of the smallest clamping tube wall among all the clamping tube walls forming the nut clamping tube (refer to 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 nut clamping tube; in this way, when any clamping wall is inserted into the nut 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.

[0313] As can be seen from the above, when the nut clamp is formed by splicing or embedding a plurality of clamp walls, and the outer diameter of the nut clamp is greater than the inner diameter of the nut 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 nut clamp, regardless of the arc length of the convex teeth, the limiter can carry the nut clamp. The material and structure of the container body, the fastening bolts, and the external tube of this embodiment can be referred to in the first embodiment, and will not be described in detail here.

[0314] As a further extension of the sixth embodiment, it is as follows:

[0315] In the above-mentioned sixth embodiment, when the nut clamp tube is formed by splicing or mosaicking a plurality of clamp tube walls, and the outer diameter of the nut clamp tube is greater than the inner diameter of the nut clamp tube and greater than 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 tube wall among all the clamp tube walls forming the nut clamp tube, the limiting part can realize the bearing of each clamp tube wall.

[0316] In the sixth embodiment, the first end of the nut 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 nut clamp tube or its clamp tube wall from the gap; for each clamp tube wall assembled or chiseled to form the nut clamp tube, if there is an arc length of the convex tooth ≥ the arc length of at least one of the clamp tube walls of all the clamp tube walls forming the nut 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 nut body and understand the distribution position of the internal convex teeth. Therefore, when installing the tube clamping wall or the nut tube clamping wall into the nut 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 in any gap. In this way, when the pushing tool enters the nut body from the first end of the nut 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 nut body (or the nut through hole).

[0317] 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 nut 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 nut clamping tube (refer to Fig.18 In Figure (4), 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 nut tube clamping; in this way, when any tube clamping wall is inserted into the nut 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 and 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 nut body (or the nut through hole).

[0318] From the above, it can be seen that when the nut clamp tube is formed by splicing or embedding multiple clamp tube walls, and the outer diameter of the nut clamp tube is greater than the inner diameter of the nut 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 nut clamp tube, the bearing of the nut clamp tube by the limiting part and the rapid removal of the nut clamp tube from the nut body can be realized.

[0319] Embodiment 7

[0320] 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.

[0321] 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 nut body 720 (or the hole wall of the nut 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.

[0322] Similar to the fourth embodiment, in the seventh embodiment, the outer diameter of the nut clamp tube> the diameter of the center hole 724b> the inner diameter of the nut clamp tube. When the nut clamp tube 730 or the clamp tube wall is inserted into the nut through hole and reaches the limit body 724a (or the convex tooth), the outer end face 730w of the first end is on the limit body 724a, and the inner end face 730n is in the center hole 724b. Fig.19 (3)). The limiting body 724a (or the convex tooth) blocks the movement of the nut clamp tube, limits the position of the nut clamp tube and supports the nut clamp tube by supporting the outer end face 730w of the first end of the nut clamp tube; its inner end face 730n is located in the center hole 724b, so that when the pushing tool enters the nut body from the first end of the nut body, it can directly extend to the end face of the nut clamp tube or each clamp tube wall at the center hole 724b, push the nut clamp tube or each clamp tube wall out from the second end of the nut body (or the nut through hole), and realize the rapid removal of each clamp tube wall from the nut body (or the nut through hole).

[0323] In this embodiment, the nut 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 nut 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 nut clamp tube out from the second end of the nut body (or nut through hole), so as to quickly remove the nut clamp tube from the nut body (or nut through hole).

[0324] From the above, it can be seen that when the nut clamp tube is a tube body structure with a tube gap, and the outer diameter of the nut clamp tube is greater than the aperture of the center hole and the inner diameter of the nut clamp tube, regardless of the arc length of the convex teeth and the gap, the limiting part can support the nut clamp tube and the nut clamp tube can be quickly removed from the nut body.

[0325] When the nut clamp tube 730 in this embodiment is formed by splicing multiple clamp tube walls: As in the above-mentioned sixth embodiment, in order to avoid the situation where the clamp tube wall slips 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 tube wall among all the clamp tube walls forming the nut clamp tube, 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 tube wall among all the clamp tube walls forming the nut clamp tube (or the arc length of the smallest clamp tube wall); in this way, any clamp tube wall is inserted into the nut through hole, and since the arc length of each clamp tube wall itself is greater than the arc length of any gap, each clamp tube wall cannot slip out of any gap, and each clamp tube wall will have at least one convex tooth to support it (refer to the corresponding content in the above-mentioned sixth embodiment).

[0326] Since the first end of each tube clamping wall has an inner end face 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 face 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 face 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 nut body (or the nut 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 nut body (or nut through hole), thereby realizing the rapid removal of the nut clamping tube from the nut body (or nut through hole).

[0327] As can be seen from the above, when the nut clamp is formed by splicing a plurality of clamp walls, and the outer diameter of the nut clamp is greater than the diameter of the center hole and greater than the inner diameter of the nut 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 nut clamp, regardless of the arc length of the convex teeth, the bearing of the nut clamp by the limit part and the rapid removal of the nut clamp from the nut body can be achieved. The material and structure of the container body, the fastening bolts, and the external tube of this embodiment can be referred to in the first embodiment, and will not be described in detail here.

[0328] Embodiment 8

[0329] In the first embodiment, the nut clamping tube 130 is a tube structure formed by splicing two clamping tube walls 131 and 132 with different arc sizes.

[0330] The main difference from the first embodiment is that the nut clamping tube in the eighth embodiment is formed by splicing a tube structure with a tube seam, and the tube seam is arranged along the direction where the nut clamping tube is located.

[0331] 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 nuts and fastening bolts are respectively arranged on both sides of the bulging portion pressed into the external pipe, and the fastening nuts and fastening bolts 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 bolt is arranged on the second side of the bulging portion and is sleeved on the external pipe; the fastening nut 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 nut: its aperture is greater than or equal to the maximum outer diameter R of the bulging portion, so that the fastening nut can pass through the bulging portion from the second end of the connecting pipe and the non-bulging portion, and is smaller than the maximum outer diameter R of the bulging portion, so that the fastening nut sleeved at the non-bulging portion cannot pass through the bulging portion, and can clamp and push the bulging portion.

[0332] The above two requirements for the hole diameter of the fastening nut are contradictory, but they are also basic conditions that the fastening nut in the present invention must meet. In order to simultaneously meet the above two requirements and set the fastening nut on the first side of the bulging part, the present invention divides the fastening nut into two parts, a nut body and a nut clamping tube. The nut body and the nut clamping tube respectively implement part of the requirements and functions of the fastening nut, especially the contradictory requirements and functions of the fastening nut are executed and realized by different components. Specifically, the present invention opens a nut through hole inside the nut body, and the aperture of the nut through hole is greater than or equal to the maximum outer diameter R of the bulging part, so that the nut body can be inserted from the second end of the connecting pipe, through the bulging part, and on the non-bulging part. The inner wall of the nut body is provided with a threaded structure to cooperate with the fastening bolt and tighten the bolt. At the same time, the nut body is used to carry the nut clamping tube, clamp and support the nut clamping tube, etc.; the nut clamping tube is set in the nut through hole or the nut body, the aperture of the nut 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 nut clamping tube can directly be inserted into the first bulging part, and clamp and push the bulging part pressed into the external tube without passing through the bulging part.

[0333] In order to enable the nut clamp tube with a hole diameter smaller than the maximum outer diameter R of the bulging part to be set on the first side of the bulging part and inserted into the non-bulging part, embodiment 1 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 nut clamp tube 130. The nut 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 set on the first side of the bulging part.

[0334] In the eighth embodiment, the nut clamp tube 1030 itself is a tube structure with a tube slit, and the tube slit 1034 is arranged along the direction of the nut clamp tube, one end of which extends to the first end of the nut clamp tube 1030, and the other end extends to the second end of the nut clamp tube 1030. Fig. 20 As shown; in this way, by stretching the tube seam 1034, the nut clamp tube 1030 can be directly put on the external tube of the non-bulging part or its outer layer, and the nut clamp tube 1030 can be placed on the first side of the bulging part. The nut clamp tube 1030 does not need to pass through the bulging part to be set on the first side of the bulging part.

[0335] In the eighth embodiment of the present invention, when assembling the nut body and the nut clamping tube on the non-bulging part to form a tightening nut, the nut 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 nut body and the bulging part, the tube seam 1034 is stretched open, the nut clamping tube 1030 is inserted onto the external tube of the non-bulging part or its outer layer, and the nut clamping tube 1030 is installed into the nut through hole (or the nut body) along the connecting tube (or the non-bulging part). The nut body clamps the nut clamping tube 1030 through its inner wall, so that the tube seam 1034 is tightly assembled to form a complete tube structure. The nut clamping tube 1030 maintains the tube structure state, and its tube structure is stable and fixed, and forms a tightening nut with the nut body. When disassembling the fastening nut, push the nut clamping tube 1030 out of the nut through hole (or the nut body), open the tube slit 1034, remove the nut clamping tube 1030 from the non-bulging part or the outer tube of the outer layer, and remove the nut body from the second end of the connecting tube through the bulging part. The material and structure of the container body, fastening bolts, external tube and nut body of this embodiment can be referred to in the first embodiment, and will not be described here.

[0336] Embodiment 9

[0337] In the first embodiment, the nut clamp tube 130 is formed by splicing two clamp tube walls 131 and 132 with different arc sizes. The arc of the clamp tube wall 132 is larger than the arc of the clamp tube wall 131. The clamp tube walls 131 and 132 are spliced ​​together to form a complete tube structure (i.e., the nut clamp tube 130).

[0338] The main difference from the first embodiment is that the nut clamp tube 1130 in the ninth embodiment is formed by splicing two clamp tube walls 1131 and 1132 of the same arc size, the arc of the clamp tube wall 1131 is equal to the arc of the clamp tube wall 132, and the clamp tube walls 1131 and 1132 are spliced ​​together to form a complete tube structure (i.e., the nut clamp tube 1130). Fig.21 shown.

[0339] In the present invention, the aperture of the nut clamp tube is smaller than the maximum outer diameter R of the bulging portion, and the nut clamp tube cannot pass through the bulging portion from the second end of the connecting tube and onto the non-bulging portion. The present invention adopts a method of splicing or embedding the clamp tube walls to surround the non-bulging portion or the outer tube of its outer layer, splicing or embedding to form a nut clamp tube. In this way, the nut clamp tube does not need to pass through the bulging portion, and can be directly embedded in the non-bulging portion or the outer tube of its outer layer, thereby clamping and pushing the bulging portion pressed into the external tube.

[0340] 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 nut tube clamp have arc sizes different from each other. 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.

[0341] In the ninth 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 nut 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 whose arc is the major arc and whose corresponding central angle is greater than 180°. This tube clamping wall has a smaller opening, and when it is assembled to form the nut 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, fastening bolts, external tube and nut body of this embodiment can be referred to in the first embodiment, and will not be described in detail here.

[0342] Embodiment 10

[0343] In the first embodiment, the nut clamp tube 130 is formed by splicing two clamp tube walls 131 and 132 with different arc sizes, and the clamp tube walls 131 and 132 can be spliced ​​together to form a complete tube structure (ie, the nut clamp tube 130).

[0344] The main difference from the first embodiment is that the nut clamp tube 1230 in the tenth embodiment is formed by splicing at least three clamp tube walls, the arc sizes of the clamp tube walls are not exactly the same, and the clamp tube walls spliced ​​together can just form a complete tube structure (i.e., the nut clamp tube 1230).

[0345] In this embodiment, the nut 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 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 can be 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. 22 shown.

[0346] In this embodiment, the nut 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°).

[0347] The number and arc size of the clamping walls that are assembled to form the nut clamping tube 1230 are not limited in this embodiment, nor in other related examples, and can be designed according to actual application conditions; however, it should be noted that the clamping walls can be assembled together to form a complete tube structure (i.e., the nut clamping tube 1230). The materials and structures of the container body, fastening bolts, external tube, and nut body of this embodiment can be found in the first embodiment, and will not be described in detail here.

[0348] According to the above deformation method, further expansion can be made as follows:

[0349] In this extended embodiment, the nut clamp tube is formed by splicing at least three clamp tube walls, the arc sizes of each clamp tube wall are exactly the same, and the clamp tube walls spliced ​​together can just form a complete tube structure (ie, the nut clamp tube).

[0350] In this extended embodiment, the nut clamping tube can be formed by splicing three 1 / 3 arc clamping tube walls, or by splicing four 1 / 4 arc clamping tube walls. The number of clamping tube walls spliced ​​to form the nut clamping tube is not limited in this extended embodiment, nor 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 9, and will not be repeated here.

[0351] Embodiment 11

[0352] In the first embodiment, the nut tube clamp 130 is formed by splicing two tube clamp walls 131 and 132. The fitting surface of the tube clamp wall 131 fits tightly with the fitting surface of the tube clamp wall 132 at each adjacent position, thereby forming a complete tube structure (ie, the nut tube clamp 130).

[0353] The main difference from the first embodiment is that the nut tube clamp in the eleventh embodiment has a first positioning structure for positioning adjacent tube clamp walls at adjacent locations so that the two ends of the two adjacent tube clamp walls are aligned; the first positioning structure includes a positioning pin arranged on the side of one adjacent tube clamp wall and a positioning groove arranged on the side of another adjacent tube clamp wall.

[0354] In the first embodiment, the nut 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 assembled into the nut through hole, the adjacent clamping tube walls are prone to relative slippage and unevenness of the two ends, such as Fig.23 As shown in Figure (1); if the formed nut clamp tube port is not neat, the clamping and pressing function of the first clamping part (i.e., the second end of the nut clamp tube) on the bulging part pressed into the external tube will be greatly affected, and the bulging part and the outer tube of its outer layer 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 nut clamp tube composed of multiple clamping walls, the above situation will be more prominent and obvious during use and cannot be ignored.

[0355] In the eleventh embodiment, the nut 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 during splicing, and to ensure that the formed nut 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.23 As shown in Figure (2).

[0356] 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 ends 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 nut 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, fastening bolts, external tube and nut body of this embodiment can be referred to in Example 1, and will not be repeated here.

[0357] In this embodiment, three or more first positioning structures can be set on the side of the tube clamp wall, and 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 nut clamp tube, the setting position, number and shape of the positioning pins on the side of an 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.

[0358] 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 nut tube clamping wall, ensuring the splicing quality, and having a good application effect.

[0359] Embodiment 12

[0360] 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.

[0361] The main difference from Example 1 is that in this Example 12, 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.

[0362] In the first embodiment, the first clamping portion 133 is a nut clamping the second end of the 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.24As shown in (1), the inner diameter of the nut clamping tube 130 is less than the second composite outer diameter R2 (meaning that the inner diameter of the first clamping portion 133 is less than the second composite outer diameter R2). Therefore, when the fastening nut and the fastening bolt 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 (the portion is only a circle). In Example 1, the force-bearing area of ​​the external tube at the first clamping portion is very limited.

[0363] In this embodiment, the first clamp 1433 is still the second end of the nut 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.24 As shown in (2), the inner diameter of the nut 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 nut and the fastening bolt 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.

[0364] 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.

[0365] Based on the above, the present invention also provides a modified example, which is as follows:

[0366] 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.

[0367] Similar to the configuration of the first clamping portion 133, in the first embodiment, the second clamping portion 141 is the first end of the fastening bolt, and the inner wall 141i of the second clamping portion 141 is a tubular curved surface or a cylindrical curved surface, such as Fig.25 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 nut and the fastening bolt 140 are screwed, 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.

[0368] In this modified embodiment, the second clamping portion 1441 is still the first end structure of the fastening bolt, 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.25 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 nut and the fastening bolt 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 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.

[0369] 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.

[0370] According to the above deformation method, further expansion can be made as follows:

[0371] 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 nut and the fastening bolt 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.

[0372] 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.

[0373] Embodiment 13

[0374] For the above-mentioned embodiment 1, the inner diameter of the nut clamp tube 130 is less than the second composite outer diameter R2. Therefore, the second end of the nut 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 nut clamp tube 130.

[0375] The main difference from Example 1 is that the first clamping portion in this Example thirteen is a circular ring structure arranged in the nut clamping tube, and the circular ring structure is arranged along the circumferential direction on the inner wall of the second end of the nut clamping 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.

[0376] In Embodiment 1, the inner diameter of the nut 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 nut clamp tube 130 inserted on the non-bulging portion cannot pass through the bulging portion whose outer layer is coated with the external tube (i.e., the bulging portion pressed into the external tube). Its 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 nut and the fastening bolt are screwed tight, the second end of the nut clamp tube can be directly used as the first clamping portion to clamp and push the bulging portion pressed into the external tube, without the need to set an additional structure on the nut 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 nut clamp tube 130.

[0377] Embodiment 1 The second end of the nut 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 nut clamp, and the inner diameter of the nut clamp is required to be less than the second composite outer diameter R2. If the inner diameter of the nut clamp is greater than or equal to the second composite outer diameter R2, this type of nut 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.

[0378] In order to solve the above problem, even if the inner diameter of the nut clamp tube is greater than or equal to the second composite outer diameter R2, the nut clamp tube can still clamp and push the bulging portion of the external tube. In this embodiment, a circular ring structure is provided in the nut clamp tube as the first clamping portion 1533, such as Fig.26 shown.

[0379] In this embodiment, the annular structure is arranged along the circumferential direction on the inner wall of the second end of the nut clamp tube, so the inner diameter of the first clamping portion 1533 is less than the inner diameter of the nut clamp tube 1530; at the same time, the inner diameter of the annular structure is less than the second composite outer diameter R2, so the annular structure can be used as the first clamping portion 1533. When the fastening nut and the fastening bolt are screwed tight, the nut clamp tube inserted on the non-bulging portion and the first clamping portion 1533 inside it cannot pass through the bulging portion of the outer layer coated with the external tube (that is, 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.26 shown.

[0380] In this embodiment, for the nut clamp tube formed by splicing clamp tube walls, the inner wall of the second end of each clamp tube wall is provided with its corresponding first clamping portion, and the clamp tube 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 nut clamp tube, a complete first clamping portion is also formed inside the nut clamp tube, and the first clamping portion is arranged around the non-bulging portion or the outer tube of its outer layer.

[0381] 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.

[0382] In this embodiment, a circular ring structure is provided on the inner wall of the second end of the nut clamp tube as the first clamping portion, so that even if the inner diameter of the nut clamp tube is greater than or equal to the second composite outer diameter R2, the nut clamp tube can still clamp and push into the bulging portion of the external tube, thereby improving the adaptability of the nut clamp tube.

[0383] Embodiment 14

[0384] For the above-mentioned embodiment 1, the outer diameter of the nut clamp tube 130 is equal to the aperture of the nut through hole 123; therefore, the nut body 120 can tighten the assembled nut clamp tube 130 through its inner wall (or the nut through hole 123 can tighten the nut clamp tube 130 through its hole wall), so that the nut clamp tube maintains a tube structure state.

[0385] The main difference from Example 1 is that in this Example 14, the outer diameter of the nut clamp tube is less than the aperture of the nut through hole, and a tightening structure is provided on the outer wall of the nut clamp tube, and the outer diameter of the tightening structure is equal to the aperture of the nut through hole; therefore, the nut body can still tighten the tightening structure through its inner wall (or the nut through hole can tighten the tightening structure through its hole wall) to keep the nut clamp tube in a tube structure state.

[0386] In the first embodiment, the outer diameter of the nut clamp tube 130 is equal to the aperture of the nut through hole 123. Therefore, the nut clamp tube 130 or its clamp tube walls 131 and 132 can be inserted into the nut through hole 123, and its outer wall is tightly fitted with the inner wall of the nut body 120 (i.e., the hole wall of the nut through hole). Therefore, when the nut clamp tube 130 is placed in the nut through hole 123, the nut body 120 can clamp the assembled nut clamp tube 130 through its inner wall (or the nut through hole 123 can clamp the assembled nut clamp tube 130 through its hole wall), so that the assembled nut clamp tube maintains a tube structure state, and its tube structure is stable and fixed without loosening. The first embodiment tightens the nut clamp tube through the nut body, so it has requirements and restrictions on the outer diameter of the nut clamp tube, and requires the outer diameter of the nut clamp tube to be equal to the aperture of the nut through hole.

[0387] If the outer diameter of the nut clamp tube is smaller than the aperture of the nut through hole, although the nut clamp tube or its clamp tube wall can be inserted into the nut through hole, it does not fit with the inner wall of the nut body (i.e., the hole wall of the nut through hole), and the nut body cannot effectively tighten the nut clamp tube formed by splicing. In this way, the adjacent clamp tube walls do not fit together, and gaps are 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 nut clamp tube is much smaller than the aperture of the nut through hole, the above phenomenon will be more obvious, and its clamp tube wall may even become loose and shake in the nut through hole, and a nut clamp tube with a stable tube structure cannot be formed.

[0388] In order to solve the above problem, the nut clamp tube with an outer diameter smaller than the hole diameter of the nut through hole can be installed in the nut 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 nut clamp tube. Fig. 27 shown.

[0389] In this embodiment, the clamping structure 1634 is a complete annular structure, which is arranged on the outer wall of the nut clamping tube. The outer diameter of the clamping structure 1634 is greater than the outer diameter of the nut clamping tube. The clamping structure 1634 is arranged at the middle position of the nut clamping tube. Fig. 27 In this embodiment, the outer diameter of the clamp structure 1634 is equal to the diameter of the nut through hole. Therefore, the nut clamp tube 1630 or its clamp tube wall can be inserted into the nut through hole, and the outer wall of the clamp structure 1634 is tightly fitted with the inner wall of the nut body (i.e., the hole wall of the nut through hole). Fig.28 When the nut clamp tube 1630 is placed in the nut through hole, the nut body 1620 can clamp the clamp structure 1634 through its inner wall (or the nut through hole can clamp the clamp structure 1634 through its hole wall), thereby clamping the assembled nut clamp tube 1630, so that the assembled nut clamp tube maintains the tube structure state, and the tube structure is stable and fixed without loosening.

[0390] In addition, in the first embodiment, the outer diameter of the nut clamp tube 130 is designed to be equal to the aperture of the nut through hole 123. Although the nut body can effectively tighten the nut clamp tube formed by the assembly, the entire outer wall of the nut clamp tube 130 (or the clamp tube walls 131, 132) is tightly fitted with the inner wall of the nut body 120 (i.e., the hole wall of the nut through hole). This makes the contact area between the nut clamp tube and the nut body large and the friction force formed is also large. Pushing the nut clamp tube or its clamp tube wall into or out of the nut through hole will encounter large friction resistance and be very laborious. If the component size error is large or the assembly space is cramped, it will be very difficult to push the nut clamp tube or its clamp tube wall into or out of the nut through hole.

[0391] In the present embodiment, the outer diameter of the nut clamp tube is less than the aperture of the nut through hole, and the outer diameter of the clamp structure 1634 is equal to the aperture of the nut through hole, so that the nut body can still effectively clamp the nut clamp tube formed by the assembly, and only the outer wall of the clamp structure 1634 is tightly fitted with the inner wall of the nut body 120 (i.e., the hole wall of the nut through hole). In this way, the contact area between the nut clamp tube and the nut body is greatly reduced, and the friction force formed is naturally reduced. The friction resistance encountered when pushing the nut clamp tube or its clamp tube wall into or out of the nut through hole is small, so it is relatively easy and effortless to push the nut clamp tube or its clamp tube wall into or out of the nut through hole.

[0392] In this embodiment, the nut 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 as one piece. In this way, when the tube walls of the nut clamp tube are spliced ​​together to form a complete nut clamp tube, a complete tightening structure 1634 is also spliced ​​on the outer wall of the nut clamp tube.

[0393] Compared with the first embodiment, this embodiment provides a tightening structure on the outer wall of the nut clamp tube, and the outer diameter of the tightening structure is set to be equal to the aperture of the nut through hole, so that the nut clamp tube with an outer diameter smaller than the aperture of the nut through hole can also maintain a spliced ​​state and a stable shape in the nut through hole. At the same time, it also makes the operation of pushing the nut clamp tube into or out of the nut through hole more labor-saving and easy, which is of great significance in practical applications.

[0394] Based on the above, the present invention also provides another variation example, which is as follows:

[0395] The main difference from the above-mentioned fourteenth embodiment is that in this modified embodiment, the tightening structure 1634 is arranged at the second end of the nut clamp tube.

[0396] like Fig. 27 As shown in (2), the clamping structure 1634 is arranged on the outer wall of the second end of the nut clamping tube, so that only when the nut clamping tube is about to be completely pushed into the nut through hole or just starts to be pushed out of the nut through hole, the clamping structure 1634 moves inside the nut through hole, fits with the inner wall of the nut body and forms friction resistance; in the other processes of pushing in or pushing out the nut through hole, the clamping structure 1634 moves outside the nut through hole, does not fit with the inner wall of the nut body, and does not form friction resistance, which makes it easier and more labor-saving to push the nut clamping tube or its clamping tube into or out of the nut through hole.

[0397] 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 nut 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. 27As shown in (3). The present invention does not limit the location of the clamp structure, nor does it limit it in 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 aperture of the nut through hole, so that the nut clamp tube can be placed in the nut through hole and can be effectively clamped by the nut body to maintain the spliced ​​state and stabilize the shape.

[0398] Based on the above, the present invention also provides another variation example, which is as follows:

[0399] The main difference from the above-mentioned embodiment 14 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. 27 As shown in (4). When the nut clamp is placed in the nut through hole, the outer wall of each annular segment is tightly fitted with the inner wall of the nut body 120 (i.e., the hole wall of the nut through hole), so that the nut body 1620 can clamp the clamp structure 1634 through its inner wall (or the nut through hole can clamp the clamp structure 1634 through its hole wall), thereby clamping the assembled nut clamp 1630, so that the assembled nut 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 14. For details, please refer to the corresponding content of embodiment 14, which will not be repeated here.

[0400] Embodiment 15

[0401] For the above-mentioned embodiment 1, the outer diameter of the nut clamp tube 130 is equal to the aperture of the nut through hole 123. Therefore, the nut body 120 can tighten the assembled nut clamp tube 130 through its inner wall (or the nut through hole 123 can tighten the nut clamp tube 130 through its hole wall) to keep the nut clamp tube in a tube structure state.

[0402] The main difference from the first embodiment is that: in the fifteenth embodiment, each tube clamp wall is provided with a concave-convex structure; at each adjacent part of the nut clamp tube, the concave-convex structures of the adjacent tube clamp 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 clamp walls are also interlocked or hooked with each other, so that the adjacent tube clamp walls are connected and the nut clamp tube maintains a tube structure state. In this embodiment, at each adjacent part of the nut clamp tube, the concave-convex structure of one adjacent tube clamp wall is a groove opened on the side, the groove extends along the direction where the nut clamp tube is located, and the extension length is equal to the tube length of the nut clamp tube, and the concave-convex structure of the other adjacent tube clamp wall is a convex block set on the side, the convex block extends along the direction where the nut clamp tube is located, and the extension length is equal to the tube length of the nut clamp tube.

[0403] This article has clearly pointed out in Implementation 16: In Example 1, the outer diameter of the nut clamp tube 130 = the aperture of the nut through hole 123, so the nut clamp tube 130 or its clamp tube walls 131, 132 can be inserted into the nut through hole 123, and its outer wall is tightly fitted with the inner wall of the nut body 120 (i.e., the hole wall of the nut through hole), so when the nut clamp tube 130 is placed in the nut through hole 123, the nut body 120 can use its inner wall (or the nut through hole 123 can use its hole wall) to tighten the spliced ​​nut clamp tube 130, so that the spliced ​​nut clamp tube maintains a tube structure state, and its tube structure is stable and fixed without loosening. Example 1 tightens the nut clamp tube through the nut body, so it has requirements and restrictions on the outer diameter of the nut clamp tube, and requires the outer diameter of the nut clamp tube to be = the aperture of the nut through hole.

[0404] If the outer diameter of the nut clamp tube is smaller than the aperture of the nut through hole, although the nut clamp tube or its clamp tube wall can be inserted into the nut through hole, it does not fit with the inner wall of the nut body (i.e., the hole wall of the nut through hole), and the nut body cannot effectively tighten the nut clamp tube formed by splicing. In this way, the adjacent clamp tube walls do not fit together, and gaps are 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 nut clamp tube is much smaller than the aperture of the nut through hole, the above phenomenon will be more obvious, and its clamp tube wall may even become loose and shake in the nut through hole, and a nut clamp tube with a stable structure cannot be formed.

[0405] In order to solve the above problems, the nut clamp tube (including the nut clamp tube with an outer diameter less than or equal to the aperture of the nut through hole) inserted into the nut through hole maintains a 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 clamp tube wall. At each adjacent part of the nut clamp tube, the concave-convex structures of adjacent clamp tube walls are interlocked and form a complete tube wall at the interlocking part. At the same time, the concave-convex structures of adjacent clamp tube walls also bite or hook each other, so that a connection is formed between the adjacent clamp tube walls, so that the nut clamp tube maintains a tube structure state.

[0406] In this embodiment, the nut clamp tube 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 nut clamp tube, 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 nut clamp tube 1830 maintains a tube structure state.

[0407] Specifically, a protrusion 1837 is provided on each side of the tube clamp wall 1831, and the protrusion 1837 on each side extends along the direction of the nut clamp tube, extending from one end of the tube clamp wall to the other end thereof, and the extension length of each protrusion 1837 is equal to the tube length of the tube clamp wall 1831 or the nut clamp 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 is the head 1837g, and the head 1837g of the protrusion is larger than the tail 1837h, as shown in FIG. Fig.29 shown.

[0408] A groove 1836 is formed on each side of the tube clamp wall 1832, and the groove 1836 on each side extends along the direction of the nut clamp tube, extending from one end of the tube clamp wall to the other end thereof, and the extension length of each groove 1836 is equal to the tube length of the tube clamp wall 1832 or the nut clamp tube 1830. Each groove 1836 is formed by being recessed from its side along the circumferential direction of the tube wall into 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.29 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 of the nut clamping tube. Therefore, the groove 1836 is formed with ports 1836f at both ends of the tube clamping wall. 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.29 As shown in the figure.

[0409] The groove 1936 is formed with ports 1936f on the inner wall and the outer wall of the clamp tube wall.

[0410] The shape and size of the projection 1837 match the groove 1836 in which it is embedded. At each adjacent position of the nut 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 nut clamping tube formed by the mosaic maintains the tube structure state, and its tube structure is stable and fixed without loosening.

[0411] 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 thereof at the end of the nut clamp tube. In this embodiment, the shape of the protrusion 1837 and the groove 1836 engaged therewith is a convex shape, such as Fig.30 As 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.30 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.

[0412] This embodiment sets protrusions and grooves on the side of the tube clamp wall as a concave-convex structure to make adjacent tube clamp 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 nut 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 nut body. Therefore, this embodiment has relatively loose requirements on the outer diameter of the nut clamp tube. The outer diameter of the nut clamp tube 1730 is equal to or less than the aperture of the nut through hole, and it can be used in conjunction with the nut body. This embodiment improves the relationship of mutual restraint and restriction between the aperture of the nut through hole and the outer diameter of the nut clamp tube, expands the scope of applicable nut clamp tubes, improves the adaptability of the nut clamp tube and the nut body, and has good application prospects.

[0413] Based on the above, the present invention further provides a modified example, which is as follows:

[0414] The main difference from the fifteenth embodiment 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.31 As shown in (1).

[0415] At one adjacent portion of the nut clamp tube 1830, the protrusion 1837 of the clamp tube wall 1831 is embedded in the groove 1836 of the clamp tube wall 1832; at another adjacent portion of the nut clamp tube 1830, the protrusion 1837 of the clamp tube wall 1832 is embedded in the groove 1836 of the clamp tube wall 1831. This variant embodiment has the same technical effect as the above embodiment, and will not be described again herein.

[0416] Based on the above, the present invention also provides another variation example, which is as follows:

[0417] The main difference from the fifteenth embodiment described above 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 of the nut clamping tube. The length of each protrusion 1837 is less than the tube length of the nut clamping tube. The protrusions 1837 are not connected to each other. 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 as needed. In this variant embodiment, the protrusions 1837 are arranged at the second end of the nut clamping tube to ensure that a complete tube wall is formed at the second end of the nut clamping tube, so that the second end of the nut clamping tube serves as a first clamping portion, providing uniform clamping and pushing force in the circumferential direction for the bulging portion pressed into the external tube, such as Fig.31 As shown in (2).

[0418] 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 nut clamping tube is located, and be equal in length to the tube clamping wall 1832 or the nut clamping tube 1830, and a plurality of protrusions 1837 are distributed on the other side along the direction where the nut clamping tube is located, and a protrusion 1837 is arranged at the second end of the nut clamping tube, such as Fig.31 This variant embodiment can achieve the same technical effect as the above embodiment, and will not be described again in this article.

[0419] Embodiment 16

[0420] For the above-mentioned embodiment 15, at each adjacent part of the nut 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 nut clamp tube is located, and the extension length is equal to the tube length of the nut clamp tube, and the concave-convex structure of the other adjacent clamp tube wall is a protrusion arranged on the side, the protrusion extends along the direction where the nut clamp tube is located, and the extension length is equal to the tube length of the nut clamp tube.

[0421] The main difference from the fifteenth embodiment is that in the sixteenth embodiment, at each adjacent part of the nut clamp tube, the concave-convex structure of one adjacent clamp tube wall is a plurality of grooves opened on the side surface, the plurality of grooves are distributed along the direction of the nut clamp tube, each groove extends along the direction of the tube diameter and penetrates the tube wall; the concave-convex structure of another adjacent clamp tube wall is a plurality of protrusions arranged on the side surface, the plurality of protrusions are distributed along the direction of the nut clamp tube, each protrusion extends along the direction of the tube diameter, and the extension length is equal to the thickness of the tube wall.

[0422] In order to solve the problem described in Example 15, the nut clamp tube (including a nut clamp tube with an outer diameter less than or equal to the hole diameter of the nut through hole) inserted into the nut through hole maintains a tube structure state and the structure is stable and fixed, this embodiment provides a new technical solution, which is different from the technical solution of Example 15.

[0423] In this embodiment, the nut clamp tube 1930 is a tube structure formed by the mutual engagement of the 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 parts of the nut clamp tube, 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 part, 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 parts, so that the nut clamp tube 1930 maintains a tube structure state.

[0424] Specifically, a plurality of protrusions 1937 are respectively provided on each side of the tube clamp wall 1931, and the protrusions 1937 on each side are distributed along the direction of the nut clamp tube; each protrusion 1937 extends along the direction of the tube diameter, 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 clamp wall to the inner wall (or from the inner wall of the tube clamp wall to the outer wall) along the direction of the tube diameter. Each protrusion 1937 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 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.32 shown.

[0425] A number of grooves 1936 are respectively provided on each side of the tube clamp wall 1932, and the grooves 1936 on each side are distributed along the direction of the nut clamp 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 clamp wall to the inner wall (or from the inner wall of the tube clamp wall to the outer wall) along the direction of the tube diameter. Each groove 1936 is formed by being recessed into the tube wall from its side 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.32 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.

[0426] At each adjacent position of the nut 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 embedded in 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 tube walls 1931 and 1932 are connected at the adjacent part, so that the nut 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 nut clamping tube can correspond and engage.

[0427] 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 nut clamp tube. In this embodiment, the shape of the protrusion 1937 and the groove 1936 engaged therewith is a trapezoid, such as Fig.33 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.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.

[0428] 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 fifteenth 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 nut 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 nut body. This embodiment has the same technical effect as the fifteenth embodiment above, and the relevant technical effects can be referred to in the fifteenth embodiment, which will not be repeated here.

[0429] Embodiment 17

[0430] For the above-mentioned embodiment 15, at each adjacent part of the nut 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 nut clamp tube is located, and the extension length is equal to the tube length of the nut clamp tube, and the concave-convex structure of the other adjacent clamp tube wall is a protrusion arranged on the side, the protrusion extends along the direction where the nut clamp tube is located, and the extension length is equal to the tube length of the nut clamp tube.

[0431] The main difference from the fifteenth embodiment is that in the seventeenth embodiment, at each adjacent part of the nut 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 nut clamp tube is located, and the extension length is equal to the tube length of the nut clamp tube; the concave-convex structure of another 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 nut clamp tube is located, and the extension length is equal to the tube length of the nut clamp tube.

[0432] In order to solve the problem described in Example 15, the nut clamp tube (including a nut clamp tube with an outer diameter less than or equal to the hole diameter of the nut through hole) inserted into the nut through hole maintains a tube structure state and the structure is stable and fixed, this embodiment also provides a new technical solution, which is different from the technical solutions of Examples 15 and 19.

[0433] In this embodiment, the nut 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 nut 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 fifteenth 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 nut clamp tube 1930 maintains a tube structure state.

[0434] Specifically, first grooves 2038 are respectively formed on the inner walls on both sides of the tube clamping wall 2031. The first grooves 2038 on the inner walls on both sides extend along the direction of the nut 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 nut 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 clamping tube wall to the other end thereof along the direction of the nut clamping tube. Therefore, the first groove 2038 is formed with ports 2038f at both ends of the clamping tube wall. Fig.34 shown.

[0435] 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 nut 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 nut 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 clamping tube wall to the other end thereof along the direction of the nut clamping tube. Therefore, the second groove 2036 is formed with ports 2036f at both ends of the clamping tube wall. Fig.34 shown.

[0436] 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. The outer wall 2036k is embedded in the first groove 2038 and forms a complete tube wall structure with the first groove 2038, which means that: in the tube diameter direction, the height of the outer wall 2036k + the thickness of the groove bottom 2038d = the wall thickness of the nut clamp or the clamp wall, and in the circumferential direction of the tube 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 nut clamp or the 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.

[0437] 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 nut clamp tube. In this embodiment, the shape of the outer wall and the grooves fitted therein is a rectangle, such as Fig.34As 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.

[0438] At each adjacent part of the nut clamp tube 2030, the outer wall 2038k is embedded in the second groove 2036, and the outer wall 2036k is embedded in the first groove 2038. The first groove 2038 and the second groove 2036 are interlocked and form a complete tube wall at the interlocking part; at the same time, along the circumferential direction of the tube wall, the outer wall 2038k of the first groove 2038 and the outer wall 2036k of the second groove 2036 are hooked together, and the adjacent clamp tube walls 2031 and 2032 are connected in the circumferential direction, so that the nut clamp tube formed by the 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 15. The relevant technical effects can be referred to in embodiment 15, and this article will not repeat them here.

[0439] Based on the above, the present invention also provides a modified example, which is as follows:

[0440] The main difference from the above-mentioned embodiment 17 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.35 shown.

[0441] At one adjacent portion of the nut 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 interlocked, 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 nut 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 interlocked, 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 repeated herein.

[0442] Based on the above, the present invention also provides another variation example, which is as follows:

[0443] The main difference from the above-mentioned embodiment 17 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 15, 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.36 shown.

[0444] 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.

[0445] Embodiment 18

[0446] For the above-mentioned embodiment 15, at each adjacent part of the nut 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 nut clamp tube is located, and the extension length is equal to the tube length of the nut clamp tube, and the concave-convex structure of the other adjacent clamp tube wall is a protrusion arranged on the side, the protrusion extends along the direction where the nut clamp tube is located, and the extension length is equal to the tube length of the nut clamp tube.

[0447] The main difference from the fifteenth embodiment is that in the eighteenth embodiment, each tube clamping wall of the nut tube clamp 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 nut tube clamp are arranged in opposite directions.

[0448] In order to solve the problem described in Example 15, the nut clamp tube (including a nut clamp tube with an outer diameter less than or equal to the hole diameter of the nut through hole) inserted into the nut through hole maintains a tube structure state and the structure is stable and fixed, this embodiment also provides a new technical solution, which is different from the technical solutions of Examples 15, 19 and 20.

[0449] In this embodiment, the nut clamp tube 2130 is a tube structure formed by the mutual interlocking of the tube clamp walls 2131 and 2132; wherein, the tube clamp walls 2131 and 2132 are both U-shaped tube wall structures, and their U-shaped tube wall structures are concave-convex structures; in the nut clamp tube 2130, the tube clamp wall 2131 and the tube clamp wall 2132 are arranged in opposite directions, so that at the adjacent part of the nut clamp tube, the tube clamp wall 2131 and the tube clamp wall 2132 are mutually interlocked through the U-shaped tube wall structure to form a complete tube wall. At the same time, the adjacent tube clamp walls 2131 and 2132 are hooked with each other through the U-shaped tube wall structure, so that the adjacent tube clamp walls 2131 and 2132 are connected at the adjacent part, so that the nut clamp tube 1930 maintains a tube structure state.

[0450] 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 at the middle position thereof, and side walls are provided at both ends (the side walls in this embodiment are equivalent to the protrusions 1837 in the fifteenth 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 nut clamping tube; Fig.37 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'.

[0451] At each adjacent part of the nut clamp tube, the side wall of one adjacent clamp tube wall is embedded in the groove of another adjacent clamp tube wall; the side wall of each clamp 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 clamp tube wall 2131 has a shape and size that matches the groove 2136' of the clamp 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: along the circumferential direction of the tube wall, the arc length of the side wall 2137 = the arc length of the groove 2136', and along the direction of the nut clamp tube, the length of the side wall 2137 = the groove depth of the groove 2136' ; Similarly, the side wall 2137' of the tube clamping wall 2132 has a shape and size that matches 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 nut clamping tube, the length of the side wall 2137' = the groove depth of the groove 2136.

[0452] At each end of the nut 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 the base walls and the main walls at this end is equal to the circumference of the nut clamp tube. In this embodiment, at one end of the nut clamp tube 2130, the base wall 2131x of the clamp tube wall 2131 and the main wall 2132y of the clamp tube wall 2132 are spliced ​​together to form a complete tube wall at the splicing point. At the same time, this end has: the arc length of the base wall 2131x + the arc length of the main wall 2132y = the circumference of the nut clamp tube 2130; at the other end of the nut 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, this end has: the arc length of the base wall 2132x + the arc length of the main wall 2131y = the circumference of the nut clamp tube 2130.

[0453] In the nut 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 nut clamping tube 2130 are arranged in opposite directions, so that at each adjacent part of the nut clamping tube 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 embedded with each other 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 nut clamping tube formed by the embedding maintains the tube structure state, and its tube structure is stable and fixed without loosening.

[0454] In this embodiment, the tube clamp wall itself is designed as a mountain-shaped tube wall structure, and the adjacent tube clamp walls are arranged in opposite directions, so that the tube clamp walls are interlocked to form a tube structure, and the tube clamp walls are hooked at the connection point, so that the nut tube clamp formed by the interlocking maintains the tube structure state, and its tube structure is stable and fixed without loosening. The technical solution provided by this embodiment has the same technical effect as that of the fifteenth embodiment. The relevant technical effects can be referred to the seventeenth embodiment, which will not be repeated here.

[0455] Embodiment 19

[0456] In embodiment 1, when the fastening nut and the fastening bolt are screwed tight, the two will clamp and push into the bulging part of the external tube from both sides of the bulging part (or the connection), and the bulging part and the outer tube of its outer layer will be firmly pressed together, thereby 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.

[0457] The main difference from Example 1 is that in this Example 19, the fastening nut and the fastening bolt have a third positioning structure for indicating the appropriate tightening position of the fastening nut and the fastening bolt; 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.

[0458] In Example 1, the fastening nut and the fastening bolt are screwed together so that on the first side of the bulge, the fastening nut is 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 bolt is 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.

[0459] The above effect can be achieved only when the fastening nut and the fastening bolt 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 nut and the fastening bolt are not tightened enough, fluid leakage or even disconnection may occur; if the fastening nut and the fastening bolt are tightened too much, the container device may be damaged. In addition, the fastening nut and the fastening bolt are threadedly connected, and the fastening bolt may become loose due to vibration during use.

[0460] In order to solve the above problems, the fastening nuts and fastening bolts 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 nut and the fastening bolt to indicate the proper tightening position of the two.

[0461] 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, located on the inner wall of the nut body and on the second side of the threaded structure; the third positioning protrusion 2225 is a continuous or discontinuous annular protrusion, arranged on the bolt rod and located on the second side of the threaded structure of the fastening bolt.

[0462] At the connection between the connecting tube and the external tube, the fastening nut (specifically, the nut body 2240) and the fastening bolt 2220 are screwed together. 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 nut and the fastening bolt through the change of the screwing force. When the nut body 2240 and the fastening bolt 2220 are screwed together to the appropriate tightening position, the fastening nut is clamped and pushed into the bulging part of the external tube on the first side of the bulging part by the first clamping part, 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 bolt 2220 is clamped and pushed into the bulging part of the external tube by the second clamping part, and the second pressure-bearing surface and the outer layer of the external tube are tightly pressed together to form a seal.

[0463] At the same time, when the nut body 2240 and the fastening bolt 2220 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 bolt loosening can be effectively prevented.

[0464] 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.38 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.

[0465] 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 nuts, which can be put on the connecting pipe and are arranged on one side of the bulging part; the fastening nuts have a first clamping part, which is used to clamp and push the bulging part of the external pipe; A plurality of fastening bolts, which can be inserted into the outer tube and arranged on the other side of the bulging portion; the fastening bolts have a second clamping portion for clamping and pushing the bulging portion of the outer tube; The fastening bolt is threadedly connected with the fastening nut, and the two are respectively clamped and pushed into the bulging part of the external pipe from both sides of the bulging part, so as to fix the connection between the connecting pipe and the external pipe 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 nut 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 inner wall of the fastening nut is provided with a threaded structure to cooperate with the fastening bolt for threaded connection.

20. The tube-connectable container according to claim 1, wherein: The fastening bolt comprises a bolt rod, a bolt head and a bolt through hole; The outer wall of the bolt rod is provided with a thread structure, which is located at the first end of the bolt rod and is used to cooperate with the fastening nut for threaded connection; The bolt head is located at the second end of the bolt shaft.

21. A tube-connectable container according to any one of claims 10, 13, 14 or 20, characterized in that: The outer diameter of the external tube ≤ the inner diameter of the bolt through hole < the second composite outer diameter R2; The second composite outer diameter R2 is the maximum outer diameter at the bulging portion pressed into the outer tube; The second clamping portion is the first end of the fastening bolt, and the inner diameter of the second clamping portion is the inner diameter of the bolt through hole.

22. The tube-connectable container according to claim 1, characterized in that: The fastening nut and the fastening bolt also have a third positioning structure for indicating the appropriate fastening position of the fastening nut and the fastening bolt; At the appropriate tightening position, the tightening nut and the tightening bolt fix the connection between the connecting pipe 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 nut and the fastening bolt 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 second side of the thread structure of the fastening bolt; The third positioning protrusion is a continuous or discontinuous annular protrusion, which is arranged on the bolt rod and located on the second side of the threaded 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 nuts and the fastening bolts is determined according to the number of the connecting pipes or the bulging parts.

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

29. The clamping nut according to claim 28, wherein: Each fastening nut comprises a nut body and a nut clamp tube; A nut through hole is provided inside the nut body, and the nut clamping tube is placed in the nut through hole; The nut body can be inserted from the second end of the connecting tube, through the bulging part, and onto the non-bulging part; the nut 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 clamping nut according to claim 29, wherein: The nut clamp tube is formed by splicing or embedding two or more clamp tube walls; Each clamping tube wall of the nut 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 clamping nut according to claim 29, wherein: The nut clamp tube is formed by splicing a tube structure with a tube seam; The pipe seam is arranged along the direction where the nut clamps the pipe.

32. The clamping nut according to claim 29, wherein: The nut through hole is arranged along the direction of the fastening nut and penetrates the nut body; The diameter of the nut through hole is greater than the maximum outer diameter of the bulging portion.

33. The clamping nut according to claim 29, wherein: A thread structure is provided on the inner wall of the nut body. The thread structure is located at the second end of the nut body and is used to cooperate with the thread structure of the fastening bolt for threaded connection.

34. The clamping nut according to claim 33, wherein: The nut body also has a limiting portion; The limiting portion is located inside the nut through hole and on the first side of its thread structure; The limiting portion is used for bearing the nut clamping tube.

35. The clamping nut according to claim 34, wherein: 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 nut 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 nut through hole.

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

37. The clamping nut 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 inner diameter of the nut clamp tube ≥ the diameter of the center hole.

38. The clamping nut according to claim 37, wherein: The entire end surface of the first end of the nut clamping tube is located on the limiting body.

39. A clamping nut 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 nut 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 clamping nut according to claim 39, wherein: By setting marks at visible positions of the nut 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 clamping nut according to claim 39, wherein: 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 nut 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 that are assembled to form the nut clamping tube.

42. The clamping nut 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 diameter of the center hole is greater than the inner diameter of the nut clamp tube.

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

44. The clamping nut 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 nut 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 nut clamp tube ≥ the diameter of the center hole.

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

46. ​​A clamping nut according to any one of claims 31 or 44, characterized in that When the nut clamping tube is formed by splicing a tube structure with a tube gap, part of its end surface is located in the gap.

47. A clamping nut according to any one of claims 30 or 44, characterized in that When the nut clamp is formed by splicing or chiseling 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 nut clamping tube, so that each clamping wall has at least one convex tooth to carry it.

48. The clamping nut 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 nut 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 clamping nut 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 nut 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 nut clamp tube.

50. The clamping nut according to claim 49, wherein: The outer end surface of the first end of the nut clamp tube is located on the limiting body, and the inner end surface is located in the center hole.

51. A clamping nut as claimed in any one of claims 31 or 50, characterized in that When the nut 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 clamping nut according to any one of claims 30 or 50, characterized in that When the nut clamp is formed by splicing or chiseling 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 nut clamping tube, so that each clamping wall has at least one convex tooth to carry it.

53. The clamping nut 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 clamping nut according to claim 34, wherein: The tube length of the nut clamp tube is less than or equal to the maximum tube length of the non-bulging part between the nut body sleeved on the non-bulging part and the bulging part.

55. The clamping nut according to claim 28, wherein: 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.

56. The clamping nut according to claim 55, 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.

57. The clamping nut according to claim 29, wherein: The outer diameter of the nut clamp tube is ≤ the diameter of the nut through hole; The inner diameter of the nut 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 pressed into the outer tube.

58. A clamping nut as claimed in any one of claims 55 or 57, characterized in that When the inner diameter of the nut clamp tube is less than the second composite outer diameter R2, the first clamping portion may be the second end of the nut clamp tube; wherein the second composite outer diameter R2 is the maximum outer diameter of the bulging portion pressed into the external tube.

59. The clamping nut according to claim 55, characterized in that The first clamping portion is a circular ring structure disposed in the nut 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 nut 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.

60. The clamping nut according to claim 57, wherein: When the outer diameter of the nut clamp tube equals the aperture of the nut through hole, the nut body clamps the nut clamp tube formed by the splicing through its inner wall, so that the nut clamp tube maintains the tube structure state; When the outer diameter of the nut clamp tube is less than the aperture of the nut through hole, a tightening structure is provided on the outer wall of the nut clamp tube, and the outer diameter of the tightening structure is equal to the aperture of the nut through hole. The nut body tightens the tightening structure through its inner wall to keep the nut clamp tube in a tube structure state.

61. The clamping nut according to claim 60, 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.

62. The clamping nut according to claim 60, characterized in that The clamping structure is arranged at the second end of the nut clamping tube.

63. The clamping nut according to claim 30, characterized in that The nut clamp tube has a first positioning structure for positioning adjacent clamp tube walls at adjacent locations so that both ends of the two adjacent clamp tube 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.

64. The clamping nut according to claim 63, characterized in that At the adjoining part of the nut clamp tube, the setting position, quantity and shape of the positioning pins on the side surface of one adjacent clamp tube wall match the setting position, quantity and shape of the positioning grooves on the side surface of another adjacent clamp tube wall.

65. The clamping nut according to claim 30, wherein: Each clamping tube wall is provided with a concave-convex structure; At each adjacent part of the nut clamp tube, the concave-convex structures of adjacent clamp tube walls are interlocked to form a complete tube wall at the interlocking part; at the same time, the concave-convex structures of adjacent clamp tube walls also bite or hook each other to form a connection between adjacent clamp tube walls and keep the nut clamp tube in a tube structure state.

66. The clamping nut according to claim 65, characterized in that At each adjacent part of the nut clamp tube, the concave-convex structure of an adjacent clamp tube wall is a groove opened on the side surface, the groove extends along the direction of the nut clamp tube, and its extension length is equal to the length of the nut clamp tube; The concave-convex structure of another adjacent clamping tube wall is a convex block arranged on the side surface, the convex block extends along the direction of the nut clamping tube, and its extension length is equal to the tube length of the nut clamping tube; or, The concave-convex structure of another adjacent clamping tube wall is a plurality of protrusions arranged on the side surface, the plurality of protrusions are distributed along the direction of the nut clamping tube, and a protrusion is arranged at the second end of the nut clamping tube, each protrusion extends along the direction of the nut clamping tube, and its extension length is less than the length of the nut clamping tube.

67. The clamping nut according to claim 65, characterized in that At each adjacent part of the nut clamp tube, the concave-convex structure of an adjacent clamp tube wall is a plurality of grooves opened on the side surface, the plurality of grooves are distributed along the direction where the nut clamp 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 clamping tube wall is a plurality of protrusions arranged on the side surface, the plurality of protrusions are distributed along the direction of the nut clamping tube, each protrusion extends along the direction of the tube diameter, and its extension length is equal to the tube wall thickness.

68. A clamping nut as claimed in any one of claims 66 or 67, characterized in that At each adjacent position of the nut 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.

69. The clamping nut according to claim 67, characterized in that At each adjacent part of the nut clamping tube, the number and arrangement position of the projections on the side of an adjacent clamping tube wall correspond to the grooves on the side of another adjacent clamping tube wall.

70. The clamping nut according to any one of claims 66 or 67, 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.

71. A clamping nut as claimed in claim 70, characterized in that The groove also has an end, and the protrusion is embedded in the groove from the end of the groove.

72. The clamping nut according to claim 68, wherein: 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.

73. A clamping nut as claimed in any one of claims 66 or 67, 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.

74. The clamping nut according to claim 65, characterized in that At each adjacent part of the nut 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 nut clamp tube, and the extension length is equal to the length of the nut clamp tube; The concave-convex structure of another adjacent clamping tube wall is a groove opened on the outer wall, and the groove is the second groove. The second groove extends along the direction of the nut clamping tube, and the extension length is equal to the tube length of the nut clamping tube.

75. The fastening nut as described in claim 74, characterized in that at each adjacent part of the nut clamping tube, the outer side wall of an adjacent clamping tube wall is embedded in the groove of another adjacent clamping tube wall; wherein the outer side wall of the first groove, its shape and size match those of the second groove into which it is embedded, and a complete tube wall is formed at the fitting part; the outer side wall of the second groove, its shape and size match those of the first groove into which it is embedded, and a complete tube wall is formed at the fitting part.

76. The fastening nut as described in claim 74, characterized in that the first groove is formed by recessing from the inner wall of the clamping tube wall along the pipe diameter direction, and has a notch and a bottom; the part of the first groove close to the inner wall is the notch, and the rest is the bottom; the second groove is formed by recessing from the outer wall of the clamping tube wall along the pipe diameter direction, and has a notch and a bottom; the part of the second groove close to the outer wall is the notch, and the rest is the bottom.

77. The fastening nut as described in claim 76, 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 port of the second groove; the outer side wall of the second groove is embedded in the first groove from the port of the first groove.

78. The fastening nut as described in claim 75, characterized in that the shape of each outer side wall and the groove fitted with it 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, a Christmas tree shape.

79. A clamping nut as claimed in any one of claims 77 or 78, characterized in that When the shape of each outer side wall and the groove fitted with it is a rectangle, each outer side wall can also be embedded in the groove from the notch.

80. The fastening nut as described in claim 74, characterized in that first grooves are provided as concavo-convex structures on the inner walls on both sides of the clamping tube wall; or, second grooves are provided as concavo-convex structures on the outer walls on both sides of the clamping tube wall; or, first grooves are provided as concavo-convex structures on the inner walls on one side of the clamping tube wall, and second grooves are provided as concavo-convex structures on the outer walls on the other side of the clamping tube wall.

81. The fastening nut as described in claim 65, characterized in that each clamping tube wall of the nut clamping tube itself is a mountain-shaped tube wall structure, and uses its mountain-shaped tube wall structure as a concavo-convex structure, and the adjacent clamping tube walls in the nut clamping tube are arranged in opposite directions.

82. The fastening nut as described in claim 81, characterized in that each clamping tube 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 provided at both ends respectively. 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 tube length of the nut clamping tube.

83. The fastening nut as described in claim 82, characterized in that at each adjacent part of the nut clamping tube, the side wall of an adjacent clamping tube wall is embedded in the groove of another adjacent clamping tube wall; the shape and size of each side wall match those of the groove into which it is embedded, and a complete tube wall is formed at the fitting part.

84. The fastening nut as described in claim 82, characterized in that at each end of the nut clamping tube, the base wall of an adjacent clamping tube wall is joined with the main wall of another adjacent clamping tube wall, and a complete tube wall is formed at the joining part; 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 nut clamp tube.

85. A pipe connection method, applicable to the pipe-connectable container according to any one of claims 1 to 27, characterized in that: The steps include: The nut body is inserted from the second end of the connecting pipe, through the bulging portion, and onto the non-bulging portion; The fastening bolt is sleeved on the external tube; 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 bolt is located on the second side of the bulging portion; The nut clamp is installed in the nut body to form a fastening nut; the formed fastening nut is sleeved on the non-bulging part and is located on the first side of the bulging part; The fastening nuts and fastening bolts on both sides of the bulging part are screwed tight, and the fastening nuts and fastening bolts apply a pushing force in opposite directions to the bulging part pressed into the external pipe, thereby fixing the connection between the connecting pipe and the external pipe and forming multiple seals at the connection.

86. The pipe connection method according to claim 85, characterized in that: At the non-bulging portion between the nut body and the bulging portion, each clamping tube wall surrounds the non-bulging portion or the outer tube of its outer layer to form a nut clamping tube, and the nut clamping tube is installed into the nut through hole along the non-bulging portion to form a fastening nut; or, At the non-bulging portion between the nut body and the bulging portion, each clamping tube wall is respectively installed into the nut body along the non-bulging portion, and is assembled in the nut through hole to form a nut clamping tube and a fastening nut.

87. The pipe connection method according to claim 85, characterized in that: At the non-bulging part between the nut body and the bulging part, the pipe seam of the nut clamping tube is stretched open, the nut clamping tube is wrapped around the non-bulging part or the outer tube of its outer layer, and the nut clamping tube is installed into the nut through hole along the non-bulging part to form a tightening nut.

88. The pipe connection method according to claim 85, characterized in that: Tighten the fastening nuts and fastening bolts to a moderately tight position.

89. 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 nuts and fastening bolts are screwed loose; The connecting pipe is withdrawn from the external pipe and is disassembled from the external pipe; The fastening nut is separated from the bulging portion along the non-bulging portion, and the nut clamping tube or the clamping tube wall thereof is removed from the nut through hole; The nut body is removed from the second end of the connecting pipe through the bulging portion; Remove the fastening bolts from the outer tube.

90. The disassembly method according to claim 89, characterized in that: Push the nut clamp tube out of the nut body, disassemble the adjacent clamp tube walls, and remove the nut clamp tube from the non-bulging part; or, Push the clamp tube wall out of the nut body and remove it from the non-bulging part.

91. The pipe disassembly method of claim 89, wherein: Push the nut clamp tube out of the nut body, open the tube slit of the nut clamp tube, and remove the nut clamp tube from the non-bulging part.

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