Fabricated reusable quick-insertion pipe joint
By designing the prefabricated fast tube joint, using the threaded connection between the nut and the joint body, combined with the taper structure of the compression ring and the compression ring, the problems of inconvenience and safety hazards in the existing technology are solved, and convenient and stable And a reusable pipeline connection method.
Patent Information
- Application Number
- CN202421104934.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The existing metal pipe connection methods mainly use clamping and welding. Clamping requires hydraulic calipers and is inconvenient for workers to operate. The welding technology requirements are high and there are safety risks. The connected pipes cannot be reused.
A prefabricated reusable fast tube joint is designed, including nut, joint body, compression ring and tube press ring. The tube is realized through the threaded connection between the nut and the joint body, and the taper structure of the compression ring and tube press ring. Fixed, without additional tools, easy to install and safe.
The convenience and stability of pipe connection are achieved, the burden on workers is reduced, technical requirements are reduced, open flames are avoided, and the connected pipes can be reused.
Smart Images
Figure CN222209344U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of pipe joint parts, and in particular relates to an assembled reusable quick-insert pipe joint. Background Art
[0002] Pipes are parts used to transport various fluids in pipelines. The cross section of a pipe is usually circular, and since metal (copper, stainless steel, rare metals, etc.) materials have excellent properties in corrosion resistance, pressure resistance, thermal insulation, heat resistance and environmental protection, most pipes are made of metal. In order to facilitate production and transportation, the length of the pipe is limited. In actual use, since the distance between the fluid output and input is usually far, multiple pipes are required to connect, which requires the pipes to be connected end to end. There are two conventional ways to connect pipes: clamping and welding.
[0003] The clamping method is to insert one end of one pipe into the sealing ring of another pipe, and use an electric hydraulic caliper to clamp a locking groove on the left and right sides of the sealing ring, so as to clamp the two pipes together. The clamping connection method has two disadvantages: on the one hand, workers need to carry hydraulic calipers, especially when the clamping part is at a high place, workers also need to climb with weight, which is very inconvenient and laborious; on the other hand, the structure of the locking groove has a fatigue period, and when it is used for a long time, the two pipes are prone to separation. Welding also has two disadvantages: on the one hand, it requires a high level of technical skills of the construction workers, and on the other hand, it requires the use of open flames, which poses a safety hazard during construction. And the pipes connected by the above two connection methods cannot be reused. Utility Model Content
[0004] Therefore, the technical problem to be solved by the utility model is that the current connection methods of metal pipes generally adopt the methods of clamping and welding. The clamping method requires carrying hydraulic calipers, which is very inconvenient, and the pipes are easy to be separated after a long time. Welding requires high technical level of workers and requires the use of open flames, which poses a safety hazard. Moreover, the pipes connected by the above two connection methods cannot be reused.
[0005] In order to solve the above technical problems, the utility model provides an assembled reusable quick-insert pipe connector, including a nut, a connector body, a clamping ring, and a pipe pressing ring.
[0006] The inner diameter of the right half of the nut is in clearance with the outer diameter of the pipe, the right half of the nut is sleeved on the outside of the pipe, the right half of the joint body can accommodate a clamping ring, the joint body can limit the clamping ring axially to the left and radially outward, and the clamping ring is sleeved on the outside of the pipe, the pipe pressing ring is made of elastic material, the pipe pressing ring is provided with an axial fracture, the inner diameter of the pipe pressing ring is consistent with the outer diameter of the pipe in a natural state, and can be sleeved on the pipe, the nut can press the pipe pressing ring The ring is used to limit the right position, the clamping ring and the tube pressing ring are arranged adjacent to each other along the axial direction of the tube, the left half of the tube pressing ring is a cone portion, and its diameter gradually increases from left to right, the right half of the clamping ring is provided with a cone cavity, and its diameter gradually increases from left to right, the left half of the nut can be threadedly connected with the right end of the joint body, and when the left half of the nut is fully threadedly connected with the right end of the joint body, the cone portion and the cone cavity fit each other, and the tube pressing ring is forced to shrink, thereby tightly wrapping the tube.
[0007] Preferably, it also includes a sealing ring, which is accommodated in the right half of the connector body and is located on the left side of the compression ring. The inner diameter of the left half of the connector body is consistent with the outer diameter of the tube, and the tube extends from the left end of the quick-insert tube connector into the sealing ring and the left half of the connector body in sequence.
[0008] Preferably, the nut is provided with a stepped through hole whose axis is coaxial with its own axis, including a large diameter section and a small diameter section distributed on the left and right, the diameter of the small diameter section is slightly larger than the outer diameter of the tube, the small diameter section is sleeved on the tube, and the large diameter section can accommodate the tube pressing ring.
[0009] Preferably, the joint body is a stepped tubular body, the left half of which includes the first tube body, and the right half of which includes the first tube body and the third tube body divided into left and right parts, the diameters of the first tube body, the second tube body and the third tube body gradually increase, and the first tube body, the second tube body and the third tube body respectively accommodate the left end of the tube, the sealing ring and the clamping ring.
[0010] Preferably, the third tube body is provided with an external thread on the outside, and the inner circumferential wall of the large diameter section is provided with an internal thread, and the large diameter section can be sleeved on the outside of the third tube body, so that the large diameter section and the third tube body are threadedly connected to each other.
[0011] Preferably, the right end face of the tube pressing ring is provided with an annular notch along the outer edge, so that the tube pressing ring forms a first step and a second step from right to left on the outer wall, and the diameter of the first step is smaller than the diameter of the second step.
[0012] Preferably, an anti-loosening elastic ring is sleeved on the outside of the first step, and the anti-loosening elastic ring includes an elastic foot and a main body. In a natural state, the elastic foot and the main body have an axial spacing. When the nut is fully pre-tightened on the joint body, the inner end face of the nut axially presses the elastic foot, and the anti-loosening elastic ring presses the right end face of the joint body, so that the two sides of the anti-loosening elastic ring respectively support the nut and the joint body.
[0013] The technical solution of the utility model has the following beneficial effects:
[0014] In the utility model, the nut, the joint body, the clamping ring and the pipe pressing ring are pre-assembled after leaving the factory. When connecting the pipe, it is only necessary to insert the pipe into the inner hole of the aforementioned pre-assembled parts in sequence, and finally manually pre-tighten the nut on the joint body, so that the pipe is annularly compressed by the pipe pressing ring, and then the position of the pipe can be fixed. The other pipe is also the aforementioned operation, and the connection of the two pipes is finally completed. The use of the utility model does not require additional tools, which reduces the burden on workers. The installation method is simple and does not require the technical level of the installer. Ordinary people can install it through simple training. The connection is relatively firm and the service life is relatively long. There is no need to use open flames, and the safety hazard is relatively small. In addition, this connection method will not destroy or increase the structure of the pipe, and the pipe can be disassembled and reused after connection. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 It is a cross-sectional schematic diagram of the embodiment 1 of the utility model after pre-assembly and with the tube inserted;
[0017] Figure 2 This is a cross-sectional view of the pipe pressing ring of Example 1 of the utility model;
[0018] Figure 3 It is a cross-sectional schematic diagram of embodiment 2 of the utility model after pre-assembly and with the tube inserted;
[0019] Figure 4 This is a cross-sectional view of the pipe pressing ring of Example 2 of the utility model;
[0020] Figure 5 This is a cross-sectional view of the nut of the utility model;
[0021] Figure 6 This is a cross-sectional view of the connector body of the utility model;
[0022] Figure 7 This is the front view of the pipe pressing ring of the utility model;
[0023] Figure 8 It is the front view of the anti-loosening elastic ring of the utility model.
[0024] Explanation of the accompanying drawings: 1. pipe; 3. nut; 31. stepped through hole; 311. large diameter section; 312. small diameter section; 4. joint body; 41. first tube body; 42. second tube body; 43. third tube body; 5. sealing ring; 6. clamping ring; 7. tube pressing ring; 71. notch; 72. first step; 73. second step; 74. fracture; 8. anti-loosening elastic ring. DETAILED DESCRIPTION
[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0029] The utility model provides an assembled reusable quick-insert pipe joint, which can quickly connect two pipes.
[0030] Divided into two different embodiments
[0031] Example 1
[0032] The utility model includes a nut 3, a joint body 4, a sealing ring 5, a clamping ring 6 and a pipe pressing ring 7. The inner diameter of the right half of the nut 3 is in clearance with the outer diameter of the pipe 1, the right half of the nut 3 is sleeved on the outside of the pipe 1, the right half of the joint body 4 can accommodate the clamping ring 6 and the sealing ring 5, the joint body 4 can limit the axial left position and radial outer position of the clamping ring 6 and the sealing ring 5, and the clamping ring 6 is sleeved on the outside of the pipe 1, the pipe pressing ring 7 is made of elastic material, and the pipe pressing ring 7 is provided with an axial fracture 74. In the natural state, the inner diameter of the pipe pressing ring 7 is consistent with the outer diameter of the pipe 1, and can be just sleeved on the pipe 1. The nut 3 can limit the right position of the tube pressing ring 7. The clamping ring 6 and the tube pressing ring 7 are arranged adjacent to each other along the axial direction of the tube 1. The left half of the tube pressing ring 7 is a cone portion, and its diameter gradually increases from left to right. The right half of the clamping ring 6 is provided with a cone cavity, and its diameter gradually increases from left to right. The left half of the nut 3 can be threadedly connected with the right end of the joint body 4. When the left half of the nut 3 is fully threadedly connected with the right end of the joint body 4, the cone portion and the cone cavity fit each other, and the tube pressing ring 7 is forced to shrink, thereby tightly wrapping the tube 1.
[0033] A stepped through hole 31 is provided in the nut 3, the axial direction of which is coaxial with the nut 3, including a large diameter section 311 and a small diameter section 312 distributed on the left and right. The diameter of the small diameter section 312 is slightly larger than the outer diameter of the pipe 1. The small diameter section 312 is sleeved on the pipe 1, and the large diameter section 311 can accommodate the pipe pressing ring 7.
[0034] The joint body 4 is a stepped tubular body, the left half of which includes a first tube body 41, and the right half of which includes a second tube body 42 and a third tube body 43 divided into left and right parts. The diameters of the first tube body 41, the second tube body 42 and the third tube body 43 gradually increase, and the first tube body 41, the second tube body 42 and the third tube body 43 respectively accommodate the left end of the tube 1, the sealing ring 5 and the clamping ring 6.
[0035] The third tube body 43 is provided with external threads on the outside, and the inner circumferential wall of the large diameter section 311 is provided with internal threads. The large diameter section 311 can be sleeved on the outside of the third tube body 43, so that the large diameter section 311 and the third tube body 43 are threadedly connected to each other.
[0036] The sealing ring 5 is accommodated in the right half of the joint body 4, and the sealing ring 5 is located on the left side of the clamping ring 6. The inner diameter of the left half of the joint body 4 is consistent with the outer diameter of the tube 1. The tube 1 extends from the left end of the quick-insert tube connector into the sealing ring 5 and the left half of the joint body 4 in sequence. The sealing ring 5 can improve the sealing performance of the connection between the tubes 1 and 1, and prevent the internal fluid from leaking out of the gap at the connection.
[0037] In this embodiment, the sealing ring 5, the clamping ring 6, the pipe pressing ring 7, the nut 3 and the joint body 4 are pre-assembled before leaving the factory. Pre-assembly process: sequentially put the sealing ring 5, the clamping ring 6 and the pipe pressing ring 7 into the joint body 4, and then sleeve the left half of the nut 3 on the right end of the joint body 4, so as to pre-assemble the sealing ring 5, the clamping ring 6 and the pipe pressing ring 7;
[0038] The method of use of this embodiment is as follows: S1: insert the tube 1 from the left end of the quick-connect connector into the nut 3, the tube pressing ring 7, the clamping ring 6, the sealing ring 5 and the left half of the joint body 4 (i.e., inside the first tube body 41) in sequence; S2: pre-tighten the left half of the nut 3 and the right end of the joint body 4, thereby pushing the tube pressing ring 7 to move to the left (towards the direction of the clamping ring 6). Due to the mortise and tenon structure principle of the taper of the tube pressing ring 7 and the clamping ring 6, the inner hole of the tube pressing ring 7 is reduced to clamp the tube 1 in an annular manner, and the position of the tube 1 is fixed. If you want to adjust the position of the tube 1 later, manually loosen the connection between the nut 3 and the joint body 4, the annular clamping force is cancelled, and the tube 1 can move freely again. After adjusting to the right position, pre-tighten the nut 3 and the joint body 4 again to fix the position of the tube 1.
[0039] Example 2
[0040] The only difference between this embodiment and the first embodiment is that a circular notch 71 is provided along the outer edge on the right end face of the tube pressing ring 7, so that the tube pressing ring 7 forms a first step 72 and a second step 73 from right to left on the outer wall, and the diameter of the first step 72 is smaller than the diameter of the second step 73. An anti-loosening elastic ring 8 is sleeved on the outside of the first step 72, and the anti-loosening elastic ring 8 includes an elastic foot and a main body. In a natural state, there is a spacing between the elastic foot and the main body in the axial direction. When the nut 3 is fully pre-tightened on the joint body 4, the inner end face of the nut 3 axially presses the elastic foot, and the anti-loosening elastic ring 8 presses the right end face of the joint body 4, and finally the two sides of the elastic foot respectively support the nut 3 and the joint body 4.
[0041] The notch 71 makes the contact area between the right end face of the pipe pressing ring 7 and the nut 3 smaller, thereby reducing the friction between the pipe pressing ring 7 and the nut 3, preventing the pipe pressing ring 7 from rotating when the nut 3 is rotated for pre-tightening. The rotation of the pipe pressing ring 7 is prevented from slowing down the tapered mortise and tenon of the pipe pressing ring 7 and the clamping ring 6, preventing the connection speed of the two pipes from being affected.
[0042] In this embodiment, the sealing ring 5, the clamping ring 6, the pipe pressing ring 7, the nut 3, the joint body 4 and the anti-loosening elastic ring 8 are pre-assembled before leaving the factory. Pre-assembly process: sequentially put the sealing ring 5, the clamping ring 6, the pipe pressing ring 7 and the anti-loosening elastic ring 8 into the joint body 4, and then sleeve the left half of the nut 3 on the right end of the joint body 4, so as to pre-assemble the sealing ring 5, the clamping ring 6, the pipe pressing ring 7 and the anti-loosening elastic ring 8;
[0043] The method of use of this embodiment is as follows: S1: insert the tube 1 from the left end of the quick-connect connector into the nut 3, the tube pressing ring 7, the clamping ring 6, the sealing ring 5 and the left half of the joint body 4 (i.e., inside the first tube body 41) in sequence; S2: pre-tighten the left half of the nut 3 and the right end of the joint body 4, thereby pushing the tube pressing ring 7 to move to the left (towards the direction of the clamping ring 6). Due to the mortise and tenon structure principle of the taper of the tube pressing ring 7 and the clamping ring 6, the inner hole of the tube pressing ring 7 is reduced to clamp the tube 1 in an annular manner, and the position of the tube 1 is fixed. If you want to adjust the position of the tube 1 later, loosen the connection between the nut 3 and the joint body 4 with the help of a wrench, the annular clamping force is cancelled, and the tube 1 can move freely again. After adjusting to the right position, pre-tighten the nut 3 and the joint body 4 again to fix the position of the tube 1.
[0044] While the nut 3 and the joint body 4 are pre-tightened, the inner end face of the nut 3 will slowly contact the elastic feet of the anti-loosening elastic ring 8, and then the elastic feet will be pressed together, and finally the anti-loosening elastic ring 8 will be pressed toward the end face of the joint body 4. The anti-loosening elastic ring 8 is clamped by the nut 3 and the end faces of the joint body 4, and its two sides are respectively pressed against the end face of the joint body 4 and the inner end face of the nut 3, thereby playing an anti-loosening role between the joint body 4 and the nut 3.
[0045] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.
Claims
1. An assembled reusable quick-release tube connector, It is characterized in that It comprises a nut (3), a joint body (4), a clamping ring (6) and a pipe pressing ring (7). The right half of the nut (3) is sleeved on the outside of the pipe (1), the right half of the joint body (4) can accommodate a clamping ring (6), and the clamping ring (6) is sleeved on the outside of the pipe (1), the pipe pressing ring (7) is made of elastic material, the pipe pressing ring (7) is provided with an axial fracture (74), the pipe pressing ring (7) can be sleeved on the pipe (1) in a natural state, and the clamping ring (6) and the pipe pressing ring (7) are arranged adjacent to each other along the axial direction of the pipe (1). The left half of the tube pressing ring (7) is a cone portion, the diameter of which gradually increases from left to right. The right half of the clamping ring (6) is provided with a cone cavity, the diameter of which gradually increases from left to right. The left half of the nut (3) can be threadedly connected with the right end of the joint body (4). When the left half of the nut (3) is completely threadedly connected with the right end of the joint body (4), the cone portion and the cone cavity fit together, and the tube pressing ring (7) is forced to shrink, thereby tightly wrapping the tube (1).
2. The assembled reusable quick-release pipe connector according to claim 1, It is characterized in that It also includes a sealing ring (5), which is accommodated in the right half of the joint body (4) and is located on the left side of the clamping ring (6). The inner diameter of the left half of the joint body (4) is consistent with the outer diameter of the pipe (1).
3. The assembled reusable quick-release pipe connector according to claim 2, It is characterized in that The nut (3) is provided with a stepped through hole (31) whose axial direction is coaxial with the nut itself, and comprises a large diameter section (311) and a small diameter section (312) distributed on the left and right, wherein the diameter of the small diameter section (312) is larger than the outer diameter of the tube (1), the small diameter section (312) is sleeved on the tube (1), and the large diameter section (311) can accommodate the tube pressing ring (7).
4. The assembled reusable quick-release pipe connector according to claim 3, It is characterized in that The joint body (4) is a stepped tubular body, the left half of which includes a first tube body (41), and the right half of which includes a second tube body (42) and a third tube body (43) divided into left and right parts. The diameters of the first tube body (41), the second tube body (42) and the third tube body (43) gradually increase. The first tube body (41), the second tube body (42) and the third tube body (43) respectively accommodate the left end of the tube (1), the sealing ring (5) and the clamping ring (6).
5. The assembled reusable quick-release pipe connector according to claim 4, It is characterized in that The third tube body (43) is provided with an external thread on the outside, and the internal circumferential wall of the large diameter section (311) is provided with an internal thread. The large diameter section (311) can be sleeved on the outside of the third tube body (43), so that the large diameter section (311) and the third tube body (43) are threadedly connected to each other.
6. The assembled reusable quick-release pipe connector according to claim 5, It is characterized in that The right end surface of the tube pressing ring (7) is provided with an annular notch (71) along the outer edge, so that the tube pressing ring (7) forms a first step (72) and a second step (73) from right to left on the outer wall, and the diameter of the first step (72) is smaller than the diameter of the second step (73).
7. The assembled reusable quick-release pipe connector according to claim 6, It is characterized in that The first step (72) is externally sleeved with an anti-loosening elastic ring (8), the anti-loosening elastic ring (8) comprising an elastic foot and a main body. In a natural state, the elastic foot and the main body are spaced apart in the axial direction. When the nut (3) is fully pre-tightened on the joint body (4), the inner end face of the nut (3) axially presses the elastic foot, and the anti-loosening elastic ring (8) in turn presses the right end face of the joint body (4), so that the two sides of the anti-loosening elastic ring (8) respectively press against the nut (3) and the joint body (4).