Clamping structure for pipeline joint
By adopting a clamping structure in the pipeline connection and using the cooperation of the sliding ring and the return spring, the existing pipeline connection is solved, and fast, simple and convenient connection and disassembly are achieved.
Patent Information
- Application Number
- CN202421798036.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The existing pipe connection methods, especially detachable connections, are cumbersome and laborious, and are inconvenient to use.
The clamping structure is adopted, including the pipe body, sliding ring, return spring, fixing ring and clamping block. Through the cooperation of the sliding ring and return spring, the rapid clamping and disassembly of the pipe body and the external pipe are achieved.
It realizes the speed, simplicity and convenience of pipeline connections, reduces operational complexity and effort, and improves the convenience of use.
Smart Images
Figure CN222772854U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of pipeline connection, and in particular to a clamping structure for a pipeline joint. Background Art
[0002] There are two main ways to connect traditional pipes or valves: one is fixed connection, which is mainly achieved by welding; the other is detachable connection, which is mainly achieved by flange connection.
[0003] In practical applications, the above-mentioned fixed connection method cannot be disassembled after use, and the use process is relatively inconvenient, so it has been rarely used in the current field; and the above-mentioned detachable connection method, although it can be disassembled after use, but because it mainly uses multiple bolts to fix the two flanges together to achieve the connection between pipes or the connection between pipes and valve bodies, the user needs to screw all the multiple bolts on the flanges one by one during use, and the overall operation process is relatively cumbersome, especially when there are many connecting bolts between the two flanges, the connection process is more laborious and inconvenient to use. Utility Model Content
[0004] In order to improve the problem of inconvenient assembly and disassembly in the existing connection between pipelines or between pipelines and valve bodies, the present application provides a clamping structure for pipeline joints.
[0005] The present application provides a clamping structure for a pipe joint, which adopts the following technical solution:
[0006] A clamping structure for a pipe joint comprises a pipe body, wherein an installation groove is provided on the inner wall of an open end of the pipe body, the installation groove is communicated with an inner channel of the pipe body, a fixing ring is arranged in the installation groove, a sliding ring is slidably arranged in the installation groove, a reset spring for driving the sliding ring away from the fixing ring is arranged between the fixing ring and the sliding ring, a mounting hole is provided on the sliding ring, a clamping block for clamping an external pipe to the pipe body is provided in the mounting hole, a retreat groove is provided on the inner side wall of the installation groove, one end of the clamping block away from the axis of the sliding ring abuts against the inner wall of the retreat groove, and the abutting surface between the clamping block and the inner wall of the retreat groove is inclined, and a limiting piece for preventing the sliding ring from slipping out of the installation groove is provided in the installation groove.
[0007] By adopting the above technical solution, when in use, the external pipe with the convex ring is inserted into the open end of the pipe body. When the end of the external pipe abuts against the side wall of the clamping block, the external pipe is continuously pushed to drive the sliding ring to slide toward the fixed ring. At this time, the reset spring is gradually compressed. During the sliding process of the sliding ring, the clamping block is gradually pushed into the retreat groove through the inclined surface cooperation between the clamping block and the inner wall of the retreat groove, and the thrust cooperation of the external pipe. When the end of the sliding ring abuts against the end of the fixed ring, the clamping block is partially embedded in the retreat groove, and at this time, the end of the clamping block close to the axis of the sliding ring is completely retracted into the mounting hole. Then, the external pipe is continuously pushed to make the convex ring on the external pipe move away from the clamping block. Then, under the elastic force of the reset spring, the sliding ring moves away from the fixed ring to return to its original position, and the clamping block also returns to its original position, thereby abutting against the convex ring on the external pipe, thereby realizing the connection between the pipe body and the external pipe. When disassembly is required, the clamping block only needs to be pushed back into the retreat groove through the annular push plate to realize the disassembly and separation between the pipe body and the external pipe. The overall operation is simple and convenient, and it is more convenient to use.
[0008] Preferably, the limiting member comprises a retaining spring arranged in the installation groove, the inner wall of the installation groove is provided with an embedding groove for embedding and positioning the retaining spring, and the retaining spring is coaxially arranged with the sliding ring.
[0009] By adopting the above technical solution, when in use, the circlip is placed into the installation groove by means of circlip pliers, and the position of the circlip is aligned with the position of the embedding groove, and then the circlip is loosened. Under the deformation force of the circlip itself, the circlip can be embedded in the embedding groove, and the sliding ring, the fixing ring and the reset spring are sealed in the installation groove. When it is necessary to disassemble and replace the sliding ring, the fixing ring or the reset spring, it is only necessary to use the circlip pliers to take out the circlip, and the operation process is simple and convenient.
[0010] Preferably, a sealing ring is provided between the fixing ring and the bottom wall of the installation groove, and the sealing ring is used to seal the connection gap between the pipe body and the external pipe.
[0011] By adopting the above technical solution, the connection gap between the sealing tube body and the external pipe is sealed by the sealing ring, so as to ensure the sealing of the entire tube body during use.
[0012] Preferably, a plurality of sealing rings are provided, and the plurality of sealing rings are arranged at intervals along the axial direction of the tube body, and a barrier ring is provided between two adjacent sealing rings.
[0013] By adopting the above technical solution, multiple sealing rings are provided during use to increase the sealing performance between the pipe body and the external pipe, and two adjacent sealing rings are isolated by a barrier ring to ensure that adjacent sealing rings do not affect each other.
[0014] Preferably, a first limiting groove is formed on the outer wall of the fixed ring, a second limiting groove is formed on the outer wall of the sliding ring, one end of the return spring abuts against the bottom wall of the first limiting groove, and the other end of the return spring abuts against the bottom wall of the second limiting groove.
[0015] By adopting the above-mentioned technical scheme, the reset spring is limited by the coordinated use of the first limit groove and the second limit groove, and the direction of the elastic force of the reset spring is guided, thereby ensuring the sliding direction of the sliding ring. At the same time, when the sliding ring abuts against the fixed ring, the reset spring can also be accommodated by the first limit groove and the second limit groove to prevent the reset spring from affecting the sliding of the sliding ring.
[0016] Preferably, a plurality of latch teeth are fixed on one side of the clamping block facing the axis of the tube body, the plurality of latch teeth are evenly spaced along the axis of the tube body, and a latch groove for embedding a convex ring on an external pipe is formed between two adjacent latch teeth.
[0017] By adopting the above technical solution, the connection stability between the pipe body and the external pipe is increased by arranging the latch teeth during use.
[0018] Preferably, a guide bevel is provided on the latch tooth (61), and the guide bevel is arranged toward the open end of the tube body (1).
[0019] By adopting the above technical solution, the external pipe is inserted into the pipe body through the guide bevel during use, so that the end of the external pipe abuts the guide bevel, so that when the sliding ring moves, the block also retracts, thereby facilitating the convenient connection between the external pipe and the pipe body.
[0020] Preferably, a plurality of the mounting holes are provided, and the plurality of mounting holes are evenly spaced along the circumferential side of the sliding ring, and a plurality of the clamping blocks and the retreat grooves are correspondingly provided.
[0021] By adopting the above technical solution and arranging a plurality of clamping blocks to cooperate with each other, the connection stability between the pipe body and the external pipe is further increased.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. Through the coordinated use of the clamping block, the sliding ring, the reset spring and the fixed ring, the external pipe is pushed during use, so that the convex ring on the external pipe abuts against the clamping block, and the clamping block is pushed into the retreat groove. When the convex ring on the external pipe is away from the clamping block, the sliding ring and the clamping block can be reset under the action of the reset spring, thereby forming a clamping connection with the external pipe. When the external pipe needs to be removed, the clamping block can be pushed back into the retreat groove through the annular push plate. The installation process is simple and convenient, and it is more convenient to use;
[0024] 2. When in use, the sealing performance of the connection between the pipe body and the external pipe is increased by using a number of sealing rings and barrier rings, thereby ensuring the use of the pipe body after being connected to the external pipe;
[0025] 3. By setting the retaining ring, it is convenient for the staff to remove the sliding ring, the return spring and the fixed ring, so as to facilitate the later maintenance or replacement and make it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a cross-sectional view mainly showing the overall structure in the first embodiment of the present application;
[0027] Figure 2 This is an exploded view mainly showing the internal clamping structure of the tube body in the first embodiment of the present application;
[0028] Figure 3 It is a cross-sectional view mainly showing the connection structure between the pipe body and the external pipe in the first embodiment of the present application.
[0029] Figure numerals: 1. tube body; 2. mounting groove; 21. retreat groove; 22. embedding groove; 3. fixing ring; 31. first limiting groove; 4. sliding ring; 41. mounting hole; 42. second limiting groove; 5. reset spring; 6. block; 61. locking tooth; 7. limiting member; 71. retaining spring; 8. sealing ring; 9. barrier ring. DETAILED DESCRIPTION
[0030] The following is combined with Figure 1 -Attached Figure 3 This application is described in further detail.
[0031] An embodiment of the present application discloses a clamping structure for a pipe joint.
[0032] Embodiment 1:
[0033] Reference Figure 1 and Figure 2 A clamping structure for a pipe joint includes a pipe body 1, an inner wall of an open end of the pipe body 1 is provided with a mounting groove 2 along its own axial direction, the mounting groove 2 is communicated with a channel in the pipe body 1, a fixing ring 3, a sliding ring 4 and a reset spring 5 are arranged in the mounting groove 2, wherein the fixing ring 3 is located in the mounting groove 2 at one end close to the bottom wall of the mounting groove 2, the sliding ring 4 slides in the mounting groove 2 along the axial direction of the pipe body 1, the reset spring 5 is located between the sliding ring 4 and the fixing ring 3, and one end of the reset spring 5 is pressed against the end of the fixing ring 3, and the other end of the reset spring 5 is pressed against the end of the sliding ring 4.
[0034] Reference Figure 1 and Figure 2A mounting hole 41 is provided on the sliding ring 4 along its radial direction, a block 6 is embedded in the mounting hole 41, and an abutment block is integrally formed in the mounting hole 41, and the abutment block is used to prevent the block 6 from sliding into the inner channel of the sliding ring 4 as a whole. A retreat groove 21 is also provided on the inner wall of the mounting groove 2, and the retreat groove 21 is in a circular ring shape. One end of the block 6 abuts on the side wall of the retreat groove 21, and the other end of the block 6 is located in the inner channel of the sliding ring 4 after passing through the mounting hole 41, and the contact friction between the block 6 and the bottom wall of the retreat groove 21 is inclined, and the diameter surrounded by the inclined surface of the inner wall of the avoidance groove is small at the end close to the opening of the tube body 1 and large at the end away from the opening of the tube body 1.
[0035] Reference Figure 1 and Figure 2 In order to ensure the connection stability after the pipe body 1 is connected to the external pipe, multiple groups of mounting holes 41 are provided, and the multiple groups of mounting holes 41 are evenly spaced along the circumference of the sliding ring 4. Correspondingly, multiple groups of clamping blocks 6 and retreat grooves 21 are also provided, and the multiple groups of clamping blocks 6 are respectively provided in one mounting hole 41, and the position of the retreat groove 21 corresponds to the setting of the clamping blocks 6. In this embodiment, the mounting holes 41 are preferably provided in two groups; when in use, the two groups of clamping blocks 6 work together to form a clamping connection with the external pipe, thereby ensuring the connection stability of the external pipe and the pipe body 1.
[0036] Reference Figure 1 and Figure 2 At the same time, in order to further enhance the connection stability between the external pipe and the pipe body 1, a plurality of latch teeth 61 are integrally formed at one end of the clamping block 6 facing the axis of the pipe body 1. The plurality of latch teeth 61 are evenly spaced along the axis of the pipe body 1, and a latch groove is formed between two adjacent latch teeth 61. In the present embodiment, four latch teeth 61 are preferably provided, and a guide bevel is further provided on the latch teeth 61, and the guide bevel is opened toward the pipe body 1. When in use, the guide bevel facilitates the insertion of the external pipe into the pipe body 1, and the four latch teeth 61 jointly form a clamping connection with the external pipe, thereby enhancing the connection stability between the external pipe and the pipe body 1.
[0037] Reference Figure 1 and Figure 2 A sealing ring 8 is arranged between the fixing ring 3 and the bottom wall of the mounting groove 2. A plurality of sealing rings 8 are arranged, and the plurality of sealing rings 8 are evenly distributed along the axial direction of the pipe body 1. A barrier ring 9 is arranged between two adjacent sealing rings 8. In the present embodiment, two sealing rings 8 are preferably arranged. When in use, the two sealing rings 8 are separated by the barrier ring 9 to avoid mutual interference between the two sealing rings 8. At the same time, when the external pipe is inserted into the pipe body 1, the connecting gap between the external pipe and the pipe body 1 is sealed by the two sealing rings 8 together, so that the sealing performance of the overall connecting structure is more significant.
[0038] Reference Figure 1 and Figure 2A first limiting groove 31 is provided on the outer wall of one end of the fixing ring 3 facing the sliding ring 4, and a second limiting groove 42 is provided on the outer wall of one end of the sliding ring 4 facing the fixing ring 3. One end of the return spring 5 abuts against the bottom wall of the first limiting groove 31, and the other end of the return spring 5 abuts against the bottom wall of the second limiting groove 42. When the sliding ring 4 slides to abut against the fixing ring 3, the first limiting groove 31 and the second limiting groove 42 are combined. At this time, the return spring 5 is located as a whole between the bottom wall of the first limiting groove 31 and the bottom wall of the second limiting groove 42.
[0039] Reference Figure 1 and Figure 2 A limit member 7 is also provided in the mounting groove 2. The limit member 7 is used to prevent the sliding ring 4 from escaping from the mounting groove 2. The limit member 7 includes a retaining spring 71. The retaining spring 71 is coaxially arranged with the sliding ring 4. An embedding groove 22 is provided on the inner wall of one end of the mounting groove 2 close to the opening of the tube body 1. The embedding groove 22 is used to embed the retaining spring 71. When the retaining spring 71 is embedded in the embedding groove 22, the operating hole on the retaining spring 71 should be located outside the embedding groove 22, so as to facilitate the user to remove or install the retaining spring 71.
[0040] Reference Figure 1 and Figure 2 When in use, first put the sealing ring 8, the fixing ring 3, the return spring 5, and the sliding ring 4 into the installation groove 2 in sequence, then put the retaining ring 71 into the installation groove 2 through the retaining ring 71 pliers, and embed the retaining ring 71 into the embedding groove 22, and limit the position of the sliding ring 4 through the retaining ring 71, thereby completing the assembly of the sealing ring 8, the fixing ring 3, the return spring 5, the sliding ring 4 and the tube body 1; when disassembly is required, it is only necessary to take out the retaining ring 71 through the retaining ring 71 pliers. The disassembly process is simple and convenient, so that the user can replace the sealing ring 8, the fixing ring 3, the return spring 5 or the sliding ring 4 conveniently.
[0041] Reference Figure 1 and Figure 3 When it is necessary to connect the external pipe to the pipe body 1, it is only necessary to insert the external pipe into the pipe body 1. When the convex ring on the external pipe abuts against the latch tooth 61, the external pipe is continued to be moved, thereby pushing the sliding ring 4 to slide in the direction close to the fixed ring 3, and the clamping block 6 gradually retracts into the mounting hole 41. At this time, the return spring 5 is gradually compressed. When the end of the sliding ring 4 abuts against one end of the fixed ring 3, a part of the clamping block 6 is embedded in the retreat groove 21, and the other part of the clamping block 6 is located in the mounting hole 41. Then, the external pipe is continued to be moved, and the convex ring on the external pipe is away from the mounting hole 41. Under the elastic force of the return spring 5, the sliding ring 4 slides to the initial state toward the end away from the fixed ring 3. During the sliding process, the clamping block 6 is also slid to restore the initial state under the restriction of the bottom wall inclined surface of the retreat groove 21. After that, when the external pipe moves toward the open end of the pipe body 1, the convex ring on the external pipe can be abutted by the clamping block 6, thereby preventing the external pipe from detaching from the pipe body 1.
[0042] Reference Figure 1 and Figure 3 When the external pipe needs to be removed, it is only necessary to use the annular push plate to extend into the gap between the outer wall of the external pipe and the inner wall of the pipe body 1, so that the end of the push plate abuts against the latch 61, and then push the push plate to make the sliding ring 4 slide toward the fixed ring 3, and at the same time retract the clamping block 6 into the mounting hole 41, so that the latch 61 is separated from the convex ring on the external pipe, and then the external pipe can be pulled out. Compared with the bolt connection method, the overall use is simpler and more convenient.
[0043] Reference Figure 1 The above-mentioned clamping structure can be used for connecting pipes to each other, and can also be used for connecting pipes to valve bodies. For example, the above-mentioned clamping structure is set at the interface end of a ball valve, an angle valve, a gate valve or a filter to achieve rapid assembly between the pipe and the valve body. In this embodiment, the connection between pipes is mainly described as an example.
[0044] The implementation principle of the embodiment of the present application is as follows: when in use, the external pipe with the convex ring is inserted into the pipe body 1, and then the external pipe is continuously moved in the direction away from the opening of the pipe body 1. At this time, as the sliding ring 4 moves, the return spring 5 is compressed. When the convex ring on the external pipe passes over the position corresponding to the block 6, under the elastic force of the return spring 5, the sliding ring 4 and the block 6 slide to restore to their original positions. Then, when the external pipe slides in the direction of the opening of the pipe body 1, the convex ring on the external pipe can be abutted and limited by the teeth 61 on the block 6, thereby preventing the external pipe from detaching from the pipe body 1, thereby completing the quick connection of the external pipe and the pipe body 1; when the external pipe needs to be separated from the pipe body 1, the sliding ring 4 can be pushed with the help of the annular push plate, and the block 6 can be driven to retreat into the retreat groove 21, and then the external pipe can be pulled out of the pipe body 1, which is simple and convenient to use.
[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A clamping structure for a pipe joint, comprising a pipe body (1), characterized in that: The inner wall of the open end of the tube body (1) is provided with a mounting groove (2), the mounting groove (2) being communicated with the inner channel of the tube body (1), a fixing ring (3) being provided in the mounting groove (2), a sliding ring (4) being slidably provided in the mounting groove (2), a return spring (5) being provided between the fixing ring (3) and the sliding ring (4) for driving the sliding ring (4) away from the fixing ring (3), a mounting hole (41) being provided on the sliding ring (4), the mounting hole A clamping block (6) for clamping an external pipe on the pipe body (1) is arranged in the inner wall of the installation groove (2), and a retreat groove (21) is provided on the inner side wall of the installation groove (2). The end of the clamping block (6) away from the axis of the sliding ring (4) abuts against the inner wall of the retreat groove (21), and the abutting surface between the clamping block (6) and the inner wall of the retreat groove (21) is inclined. A limiting member (7) is arranged in the installation groove (2) for preventing the sliding ring (4) from slipping off the installation groove (2).
2. A clamping structure for a pipe joint according to claim 1, characterized in that: The limiting member (7) comprises a retaining spring (71) arranged in the installation groove (2); an inner wall of the installation groove (2) is provided with an embedding groove (22) for embedding and positioning the retaining spring (71); the retaining spring (71) and the sliding ring (4) are coaxially arranged.
3. A clamping structure for a pipe joint according to claim 1, characterized in that: A sealing ring (8) is provided between the fixing ring (3) and the bottom wall of the installation groove (2), and the sealing ring (8) is used to seal the connection gap between the pipe body (1) and the external pipe.
4. A clamping structure for a pipe joint according to claim 3, characterized in that: A plurality of sealing rings (8) are provided, and the plurality of sealing rings (8) are arranged at intervals along the axial direction of the tube body (1), and a barrier ring (9) is provided between two adjacent sealing rings (8).
5. The clamping structure for a pipe joint according to claim 1, characterized in that: The outer wall of the fixed ring (3) is provided with a first limiting groove (31), the outer wall of the sliding ring (4) is provided with a second limiting groove (42), one end of the return spring (5) abuts against the bottom wall of the first limiting groove (31), and the other end of the return spring (5) abuts against the bottom wall of the second limiting groove (42).
6. A clamping structure for a pipe joint according to claim 1, characterized in that: A plurality of latching teeth (61) are fixed to one side of the latching block (6) facing the axis of the tube body (1); the plurality of latching teeth (61) are evenly spaced along the axis of the tube body (1); and a latching groove for embedding a convex ring on an external pipe is formed between two adjacent latching teeth (61).
7. A clamping structure for a pipe joint according to claim 6, characterized in that: The latching tooth (61) is provided with a guide bevel, and the guide bevel is arranged toward the opening end of the tube body (1).
8. The clamping structure for a pipe joint according to claim 1, characterized in that: A plurality of the mounting holes (41) are provided, and the plurality of mounting holes (41) are evenly spaced along the circumference of the sliding ring (4), and a plurality of the clamping blocks (6) and the retreat grooves (21) are correspondingly provided.