Pipe slipknot connector

Through the design of anti-loosening devices and auxiliary devices, the problem of loosening and leakage of the nuts under vibration of the pipe pull-knot interface is solved, and stable connection and flexible installation are achieved.

CN223076477UActive Publication Date: 2025-07-08ZHEJIANG HAOAO PIPE IND CO LTD
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Patent Information

Application Number
CN202422163288.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-04
Publication Date
2025-07-08
Estimated Expiration
2034-09-04

AI Technical Summary

Technical Problem

The existing pipe twelvet interface is prone to rotation of the nut due to vibration and other interference when used, resulting in loosening and leakage, and poor stability.

Method used

Anti-loosening device is adopted, including hollow sleeves, control parts, limit blocks and large and small springs. Through the cooperation of control parts and springs, stable connection of threaded caps is achieved to prevent loosening; the auxiliary device improves connection flexibility through sealing heads and adjustment pipes.

Benefits of technology

Effectively prevent the nut from rotating and loosening, reduce leakage, and improve the firmness and flexibility of pipe connections.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223076477U_ABST
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Abstract

The utility model relates to the technical field of pipe slipknot connectors, in particular to a pipe slipknot connector which comprises a first connector, a second connector and an anti-loosening device, the second connector is arranged on one side of the first connector, a connecting pipe is arranged on the surface of the second connector, a threaded cap is sleeved on the surface of the second connector, and the threaded cap is in threaded connection with the first connector. The anti-loosening device is arranged on the surface of the first connector and comprises a hollow sleeve, the hollow sleeve is fixedly connected with the surface of the first connector, the inner wall of the hollow sleeve is slidably connected with a control piece, the inner wall of the hollow sleeve is slidably connected with three limiting blocks, the surface of the threaded cap is fixedly connected with three hollow blocks, and the limiting blocks are connected with the inner walls of the hollow blocks in an inserted mode. According to the slipknot connector for the pipes, the anti-loosening device is arranged, so that the nut in the slipknot connector for the pipes can be reinforced, the nut in the slipknot connector for the pipes cannot rotate or loosen, leakage caused by loosening is reduced, and the firmness of pipe connection can be ensured.
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Description

Technical Field

[0001] The utility model relates to the technical field of pipe union joints, in particular to pipe union joints. Background Art

[0002] Nowadays, when some pipes are connected, union joints will be used. The union joints can adapt to the connection of pipes with different diameters within a certain range. Whether it is a smaller-diameter pipe or a larger-diameter pipe, by selecting a union joint with a suitable specification, reliable connection can be achieved. The connection of two groups of pipes is composed of a male port, a female port and a sleeve nut. It has the characteristics of flexible operation, convenient installation and disassembly, and high pressure resistance.

[0003] In daily work, it is found that when the existing union joints for pipes are in use, the nuts of the union joints are used to connect the interfaces of the two connected pipes to achieve the union effect. However, when in use, the nuts of the union joints are prone to be affected by vibrations and other interferences, causing the middle nut to rotate automatically, resulting in the overall loosening of the union joint, and then causing leakage of the union joint. Furthermore, the existing union joints have poor stability and are prone to leakage problems when in use. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a pipe union joint to solve the disadvantages of poor stability and easy leakage in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a pipe union joint, including joint one, joint two and an anti-loosening device. The joint two is arranged on one side of the joint one. A connecting pipe is arranged on the surface of the joint two. A threaded nut is sleeved on the surface of the joint two. The threaded nut is threadedly connected with the joint one. The anti-loosening device is arranged on the surface of the joint one. The anti-loosening device includes a hollow sleeve. The hollow sleeve is fixedly connected with the surface of the joint one. A control member is slidably connected to the inner wall of the hollow sleeve. Three limiting blocks are slidably connected to the inner wall of the hollow sleeve. Three hollow blocks are fixedly connected to the surface of the threaded nut. The limiting blocks are inserted into the inner walls of the hollow blocks. A large spring is fixedly connected to one side of the control member corresponding to the inner wall of the hollow sleeve. There are multiple large springs. Through the above components, when the control member is pushed towards the side close to the hollow sleeve, the large spring is deformed by force. After moving to a certain position, the control member loses the restraint on the limiting blocks, and the limiting blocks slide downwards. At this time, the threaded nut and the joint one can be connected. When the connection is tightened, the control member can be released, and the large spring can drive the control member to reset. Thus, the control member can squeeze the limiting blocks so that the limiting blocks can be inserted into the hollow blocks, thereby reducing the situation of automatic loosening and leakage of the threaded nut.

[0006] Preferably, the control member includes a push ring which is slidably connected to the inner wall of the hollow sleeve. Three extrusion blocks are fixedly connected to the surface of the push ring, and the extrusion surfaces of the extrusion blocks are inclined surfaces. Through the above components, the control member mainly drives the extrusion blocks to move through the push ring. The inclined extrusion surfaces of the extrusion blocks can cooperate with the limit blocks to extrude the limit blocks, thereby realizing the control of the extrusion blocks.

[0007] Preferably, the top end of the extrusion block is arranged as a plane. Through the above components, after the extrusion block extrudes the limit block to a certain position, the bottom surface of the limit block will contact the top plane of the extrusion block, so as to achieve a stable effect.

[0008] Preferably, a small spring is fixedly connected to the side of the limit block corresponding to the inner wall of the hollow sleeve, and the elastic force of the large spring is greater than that of the small spring. Through the above components, when the extrusion block loses its restraint on the limit block, the small spring can drive the limit block to reset.

[0009] Preferably, an auxiliary device is arranged on the surface of the first joint. The auxiliary device includes an adjustment pipe which is arranged on one side of the first joint. One end of the adjustment pipe is fixedly connected with a sealing head which is slidably connected to the inner wall of the first joint. A threaded connection head is arranged on the surface of the adjustment pipe. Through the above components, the adjustment pipe can be driven to move by one end in the inner wall of the first joint through the sealing head, so as to adjust the length. At the same time, the threaded connection head is convenient for connecting the first joint with the pipe.

[0010] Preferably, a threaded seat is fixedly connected to the surface of the first joint, and a pressing screw is threadedly connected to the inner wall of the threaded seat. A gasket is fixedly connected to the lower end of the pressing screw. Through the above components, when the adjustment pipe is adjusted to a certain position, the pressing screw can be rotated, and the pressing screw can drive the gasket to press on the adjustment pipe to achieve a limiting effect.

[0011] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0012] 1. In the present utility model, by setting the anti-loosening device, the nut in the quick coupling for pipes can be reinforced, and the nut in the quick coupling for pipes will not rotate or loosen, thereby reducing the leakage caused by loosening and ensuring the firmness of the pipe connection.

[0013] 2. In the present utility model, by setting the auxiliary device, the pipe connection can be more flexible, avoiding the installation difficulty caused by inappropriate length, and thus improving the overall flexibility of the quick coupling for pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the quick coupling for pipes proposed by the present utility model;

[0015] Figure 2 The structural schematic diagram of the A position in the quick coupling interface of the pipe for this utility model Figure 1 in the middle;

[0016] Figure 3 The partial structural schematic diagram of the quick coupling interface of the pipe for this utility model

[0017] Figure 4 The partial sectional structural schematic diagram of the anti-loosening device of the quick coupling interface of the pipe for this utility model

[0018] Figure 5 The exploded structural schematic diagram of the auxiliary device of the quick coupling interface of the pipe for this utility model

[0019] Legend description:

[0020] 1. First joint; 2. Second joint; 3. Connecting pipe; 4. Threaded nut; 5. Anti-loosening device; 51. Hollow sleeve; 52. Hollow block; 53. Control part; 531. Push ring; 532. Extrusion block; 54. Limit block; 55. Small spring; 56. Large spring; 6. Auxiliary device; 61. Adjusting pipe; 62. Threaded connector; 63. Compression screw; 64. Sealing head; 65. Threaded seat; 66. Gasket Specific implementation manners

[0021] Please refer to Figures 1-5 , this utility model provides a technical solution: a quick coupling interface for pipes, including a first joint 1, a second joint 2 and an anti-loosening device 5. The second joint 2 is arranged on one side of the first joint 1. A connecting pipe 3 is arranged on the surface of the second joint 2. A threaded nut 4 is sleeved on the surface of the second joint 2. The threaded nut 4 is threadedly connected to the first joint 1. The anti-loosening device 5 is arranged on the surface of the first joint 1.

[0022] Specifically, the anti-loosening device 5 includes a hollow sleeve 51. The hollow sleeve 51 is fixedly connected to the surface of the first joint 1. A control part 53 is slidably connected to the inner wall of the hollow sleeve 51. Three limit blocks 54 are slidably connected to the inner wall of the hollow sleeve 51. Three hollow blocks 52 are fixedly connected to the surface of the threaded nut 4. The limit blocks 54 are inserted into the inner walls of the hollow blocks 52. A large spring 56 is fixedly connected to one side of the control part 53 corresponding to the inner wall of the hollow sleeve 51. There are multiple large springs 56.

[0023] In this embodiment: Push the control member 53 towards the side close to the hollow sleeve 51. The large spring 56 deforms under force. After moving to a certain position, the control member 53 loses its restraint on the limit block 54, and the limit block 54 slides downward. At this time, the threaded cap 4 can be connected to the first joint 1. After the connection is tightened, the control member 53 can be released. The large spring 56 can drive the control member 53 to reset, so that the control member 53 can squeeze the limit block 54, enabling the limit block 54 to be inserted into the hollow block 52, thereby reducing the situation of automatic loosening and leakage of the threaded cap 4.

[0024] Specifically, the control member 53 includes a push ring 531 which is slidably connected to the inner wall of the hollow sleeve 51. Three extrusion blocks 532 are fixedly connected to the surface of the push ring 531, and the extrusion surfaces of the extrusion blocks 532 are arranged in an inclined plane.

[0025] In this embodiment: The control member 53 mainly drives the extrusion blocks 532 to move through the push ring 531. The inclined extrusion surfaces of the extrusion blocks 532 can cooperate with the limit block 54 to squeeze the limit block 54, thereby realizing the control of the extrusion blocks 532.

[0026] Specifically, the top end of the extrusion block 532 is arranged in a flat surface. After the extrusion block 532 squeezes the limit block 54 to a certain position, the bottom surface of the limit block 54 will contact the top flat surface of the extrusion block 532, thereby achieving a stable effect.

[0027] Specifically, a small spring 55 is fixedly connected to the side of the limit block 54 corresponding to the inner wall of the hollow sleeve 51. The elastic force of the large spring 56 is greater than that of the small spring 55. After the extrusion block 532 loses its restraint on the limit block 54, the small spring 55 can drive the limit block 54 to reset.

[0028] Specifically, an auxiliary device 6 is arranged on the surface of the first joint 1. The auxiliary device 6 includes an adjustment tube 61 which is arranged on one side of the first joint 1. One end of the adjustment tube 61 is fixedly connected with a sealing head 64 which is slidably connected to the inner wall of the first joint 1. A threaded connection head 62 is arranged on the surface of the adjustment tube 61.

[0029] In this embodiment: The adjustment tube 61 can be driven to move by one end in the inner wall of the first joint 1 through the sealing head 64, so as to adjust the length. At the same time, the threaded connection head 62 is convenient for connecting the first joint 1 with the pipe.

[0030] Specifically, a threaded seat 65 is fixedly connected to the surface of the first joint 1. A compression screw 63 is threadedly connected to the inner wall of the threaded seat 65. The lower end of the compression screw 63 is fixedly connected with a gasket 66. After the adjustment tube 61 is adjusted to a certain position, the compression screw 63 can be rotated, and the compression screw 63 can drive the gasket 66 to press on the adjustment tube 61 to achieve a limiting effect.

[0031] Working principle: When in use, the threaded cap 4 can be sleeved on the second joint 2. Then, align the first joint 1 and the second joint 2, and then rotate the threaded cap 4. The threaded cap 4 is threadedly connected to the first joint 1. When the threaded cap 4 is connected halfway, the push ring 531 can be pushed towards the side close to the hollow sleeve 51. The push ring 531 drives the extrusion block 532 to move, and the large spring 56 deforms under force. When the extrusion block 532 moves to a certain position, the extrusion block 532 loses the restraint on the limiting block 54, and the small spring 55 drives the limiting block 54 to reset. After the limiting block 54 resets, the threaded cap 4 can be rotated continuously. After the threaded cap 4 is tightly connected to the first joint 1, the push ring 531 can be released. The large spring 56 drives the push ring 531 and the extrusion block 532 to reset. Since the elastic force of the large spring 56 is greater than that of the small spring 55, the extrusion block 532 will squeeze the limiting block 54, and the small spring 55 deforms under force. Then, the extrusion block 532 squeezes the limiting block 54 into the hollow block 52 to lock the threaded cap 4. At the same time, the adjusting pipe 61 can be driven to move in the first joint 1 through the sealing head 64. After the position is adjusted, the pressing screw 63 can be rotated. The pressing screw 63 cooperates with the gasket 66 to squeeze on the adjusting pipe 61, and then the use is completed.

Claims

1. Pipe union joint, comprising a first joint (1), a second joint (2) and an anti-loosening device (5), characterized in that: The second joint (2) is arranged on one side of the first joint (1). A connecting pipe (3) is arranged on the surface of the second joint (2). A threaded cap (4) is sleeved on the surface of the second joint (2). The threaded cap (4) is threadedly connected to the first joint (1). A loosening prevention device (5) is arranged on the surface of the first joint (1). The loosening prevention device (5) includes a hollow sleeve (51). The hollow sleeve (51) is fixedly connected to the surface of the first joint (1). A control member (53) is slidably connected to the inner wall of the hollow sleeve (51). Three limit blocks (54) are slidably connected to the inner wall of the hollow sleeve (51). Three hollow blocks (52) are fixedly connected to the surface of the threaded cap (4). The limit blocks (54) are inserted into the inner walls of the hollow blocks (52). A large spring (56) is fixedly connected to one side of the control member (53) corresponding to the inner wall of the hollow sleeve (51). There are multiple large springs (56).

2. The pipe union joint according to claim 1, characterized in that: The control member (53) includes a push ring (531). The push ring (531) is slidably connected to the inner wall of the hollow sleeve (51). Three extrusion blocks (532) are fixedly connected to the surface of the push ring (531). The extrusion surfaces of the extrusion blocks (532) are inclined planes.

3. The pipe union joint according to claim 2, wherein: The top ends of the extrusion blocks (532) are flat surfaces.

4. The tube coupling interface according to claim 1, wherein: A small spring (55) is fixedly connected to one side of the limit block (54) corresponding to the inner wall of the hollow sleeve (51). The elastic force of the large spring (56) is greater than the elastic force of the small spring (55).

5. The pipe union joint according to claim 1, characterized in that: An auxiliary device (6) is arranged on the surface of the first joint (1). The auxiliary device (6) includes an adjusting pipe (61). The adjusting pipe (61) is arranged on one side of the first joint (1). A sealing head (64) is fixedly connected to one end of the adjusting pipe (61). The sealing head (64) is slidably connected to the inner wall of the first joint (1). A threaded connection head (62) is arranged on the surface of the adjusting pipe (61).

6. The pipe union joint according to claim 1, characterized in that: A threaded seat (65) is fixedly connected to the surface of the first joint (1). A pressing screw (63) is threadedly connected to the inner wall of the threaded seat (65). A gasket (66) is fixedly connected to the lower end of the pressing screw (63).