Pipeline connecting part

The plug assembly enables quick snap-fit ​​connection between the connector and the socket, solving the problems of cumbersome traditional threaded connections and hose twisting, thus improving the efficiency and reliability of valve connections.

CN224229515UActive Publication Date: 2026-05-12WENZHOU RUNXIN MACHINERY MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU RUNXIN MACHINERY MFG
Filing Date
2026-03-13
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In the current valve water pressure testing process, the connection between the hose and the valve body is cumbersome and prone to torsion damage due to incorrect angle.

Method used

A plug assembly is used to achieve quick snap-fit ​​between the connector and the socket. Through the synergistic action of components such as ferrules and claws, the connector and socket can be quickly assembled and locked, avoiding threaded engagement.

Benefits of technology

It significantly simplifies the installation process, avoids hose torsion damage, improves connection efficiency and sealing, enhances vibration resistance, and increases connection reliability and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pipeline connecting part which comprises a connector installed at the end of a hose and a connecting seat arranged on the outer wall of a valve body, a connecting groove is formed in the connecting seat, the connector can be inserted into the connecting groove, a plug assembly is arranged on the connector in a sleeved mode, and when the connector is inserted into the connecting groove, the plug assembly is plugged between the connecting groove and the connector. And the joint is clamped in the connecting groove. The quick joint has the advantages that the plug assembly is in extrusion fit between the joint and the connecting groove, the joint and the connecting base are quickly clamped and fixed, the installation process is simplified, meanwhile, the connection stability is guaranteed, and pipeline connection looseness or leakage is effectively prevented.
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Description

Technical Field

[0001] This utility model relates to a pipeline connection technology in the field of valve control, and more specifically to a pipeline connection component. Background Technology

[0002] In the field of valve control, it is often necessary to sample and detect the internal water pressure of the valve. Therefore, it is necessary to connect the water pressure sensor inside the actuator to the inlet or outlet of the valve body through a hose. The existing method is to set a threaded connector on the side wall of the inlet or outlet, and then connect the two by threading the connector on the end of the hose with this threaded connector. However, this connection method is relatively cumbersome and the hose may twist due to incorrect angle during the connection process. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a pipe connection component that enables quick snap-fit ​​between the connector and the socket through a plug assembly, thereby solving the problems of cumbersome traditional threaded connections and hose twisting.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a pipe connection component, including a connector installed at the end of a hose and a seat disposed on the outer wall of a valve body, the seat having a connection groove, the connector being inserted into the connection groove, and a plug assembly being fitted on the connector, wherein when the connector is inserted into the connection groove, the plug assembly is inserted between the connection groove and the connector to secure the connector in the connection groove.

[0005] As a further improvement of this utility model, the plug assembly includes a ferrule, which is coaxially sleeved on the connector and plugged between the connecting groove and the connector. The end of the connector is provided with a retaining edge, and the ferrule is provided with a pressing edge. The pressing edge abuts against the retaining edge. During assembly, the ferrule is first sleeved onto the connector and then inserted into the connecting groove together. The outer wall of the ferrule is locked in the connecting groove.

[0006] As a further improvement of this utility model, the plug assembly also includes an end cap, which is inserted into the connecting groove and engages with the connecting groove. A sleeve is inserted into the end cap, and the outer side wall of the sleeve engages with the inner side wall of the end cap.

[0007] As a further improvement of this utility model, a retaining ring is formed on the outer wall of the ferrule, and a pressing bevel is formed on the inner side wall of the end cap. The pressing bevel extends from the end of the end cap to the middle, so that the inner diameter of the end cap gradually shrinks. During assembly, the end cap is fitted onto the ferrule, the ferrule first inserts the connector into the connecting groove, and then the end cap is pressed into the connecting groove. The side of the end face of the retaining ring abuts against the pressing bevel.

[0008] As a further improvement of this utility model, the plug assembly also includes a claw. The inner wall of the claw is provided with several inclined springs, and the outer wall of the claw is provided with a hook block. During assembly, the claw is first inserted into the connecting groove, and then installed in the connecting groove by the hook block. The sleeve with the connector is inserted into the claw, and the side of the spring abuts against the outer wall of the sleeve.

[0009] As a further improvement of this utility model, the plug assembly also includes an end cap, which is inserted into the connecting groove and engages with it. A pressure bevel is formed on the inner side wall of the end cap, which extends from the end of the end cap to the middle, causing the inner diameter of the end cap to gradually shrink. During assembly, the end cap is first inserted into the connecting groove and engages with it. The claw is inserted into the end cap, the hook block abuts against the pressure bevel, the sleeve with the connector is inserted into the claw, and the side of the spring abuts against the outer wall of the sleeve.

[0010] As a further improvement of this utility model, the claw includes a claw ring and several claw plates. The several claw plates are fixedly connected to the claw ring and are distributed in a circle along the claw ring. There is a movable gap between adjacent claw plates. The hook block is set on the claw plate. During the process of the claw being inserted into the end cap, the claw plate first deforms and tilts, causing the hook block to slide in and abut against the inclined surface.

[0011] As a further improvement of this utility model, the outer side wall of the claw ring is provided with a buckle, and the plug assembly also includes a buckle. After the claw is inserted into the end cap, the buckle is sleeved on the claw piece and locked between the end face of the end cap and the buckle to prevent the claw from moving toward the connecting groove.

[0012] As a further improvement of this utility model, the outer wall of the end cap is provided with several cards. During the process of inserting the end cap into the connecting groove, the cards first deform and pass through the opening of the connecting groove, and then form a barb structure in the connecting groove to lock the end cap in the connecting groove.

[0013] The beneficial effects of this invention are as follows: The snap-fit ​​structure between the plug assembly and the connecting groove enables rapid assembly of the connector and socket, eliminating the need for threaded engagement. This significantly simplifies the installation process and avoids torsional damage to the hose caused by angular deviations. The plug assembly achieves radial locking through elastic deformation, offering higher assembly efficiency and angular adaptability compared to traditional threaded connections. Furthermore, the beveled fit between the ferrule and the end cap enhances the connection seal, the spring design of the claws provides cushioning compensation, and the dual locking mechanism of the buckle and the clip improves the vibration resistance of the connection structure. The synergistic effect of these multiple components significantly improves the reliability and service life of the pipeline connection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the assembly structure of the pipe connection components;

[0015] Figure 2 A cross-sectional view of embodiment 1 of the plug assembly;

[0016] Figure 3 An exploded view of Embodiment 1 of the plug assembly;

[0017] Figure 4 A cross-sectional view of embodiment 2 of the plug assembly;

[0018] Figure 5 An exploded view of Embodiment 2 of the plug assembly. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0020] Reference Figure 1 As shown, the pipe connection component of this embodiment includes a connector 1 installed at the end of the hose and a seat 2 disposed on the outer wall of the valve body. The seat 2 has a connecting groove 21 into which the connector 1 can be inserted. A plug assembly 3 is fitted onto the connector 1. When the connector 1 is inserted into the connecting groove 21, the plug assembly 3 is inserted between the connecting groove 21 and the connector 1 to secure the connector 1 within the connecting groove 21. During assembly, installation can be completed without rotating the connector 1. Rapid locking is achieved through the radial expansion of the plug assembly 3, solving the problem of cumbersome operation caused by repeated tightening in traditional threaded connections. Simultaneously, it allows the connector 1 to adaptively adjust its angle during insertion, avoiding torsional stress on the hose caused by forced alignment.

[0021] Reference Figure 2 and Figure 3 As shown, the plug assembly 3 further includes a retaining sleeve 31, which is coaxially sleeved on the connector 1 and inserted between the connecting groove 21 and the connector 1. The end of the connector 1 is provided with a retaining edge 11, and the retaining sleeve 31 is provided with a pressing edge 311, which abuts against the retaining edge 11. During assembly, the retaining sleeve 31 is first sleeved onto the connector 1, and then inserted into the connecting groove 21 together. The outer wall of the retaining sleeve 31 is locked in the connecting groove 21. The axial limiting structure of the retaining edge 11 and the pressing edge 311 prevents the connector 1 from accidentally coming out of the connecting groove 21, so that the retaining sleeve 31 can effectively install the connector 1 into the connector 2.

[0022] Reference Figure 2 and Figure 3 As shown, this embodiment provides a first embodiment of a plug assembly 3. The plug assembly 3 further includes an end cap 5, which is inserted into the connecting groove 21 and engages with it. A retainer 31 is inserted into the end cap 5, and the outer side wall of the retainer 31 engages with the inner side wall of the end cap 5. By using the method of fixing the end cap 5 to the connecting groove 21, connecting the retainer 31 to the end cap 21, and connecting the connector 1 to the retainer 31, the problem of the connector 1 axially dislodging from the connecting groove 21 can be effectively avoided.

[0023] Reference Figure 2 and Figure 3As shown, further, a retaining ring 312 is formed on the outer wall of the ferrule 31, and a pressure bevel 52 is formed on the inner side wall of the end cap 5. The pressure bevel 52 extends from the end of the end cap 5 to its middle, causing the inner diameter of the end cap 5 to gradually shrink. During assembly, the end cap 5 is fitted onto the ferrule 31, and the ferrule 31, along with the connector 1, is first inserted into the connecting groove 21. Then, the end cap 5 is pressed into the connecting groove 21, and the end face of the retaining ring 312 abuts against the pressure bevel 52. The wedge-tight fit between the pressure bevel 52 and the retaining ring 312 generates a radial component force, preventing the ferrule 31 from axially dislodging from the connecting groove 21, thereby effectively fixing the connector 1 and the connector 2, and preventing the connector 1 from dislodging from the connector 2.

[0024] Reference Figure 4 and Figure 5 As shown, this embodiment provides a second embodiment of the plug assembly 3. The plug assembly 3 also includes a claw 4. The inner wall of the claw 4 is provided with a plurality of inclined spring pieces 44, and the outer wall of the claw 4 is provided with hook blocks 43. During assembly, the claw 4 is first inserted into the connecting groove 21, and then installed in the connecting groove 21 by the hook blocks 43. The sleeve 31 with the connector 1 is then inserted into the claw 4, and the side of the spring piece 44 abuts against the outer wall of the sleeve 31. The inclined arrangement of the spring piece 44 can form an effective barb structure, so that during the process of inserting the sleeve 31 into the claw 4, the deformation allows the sleeve 31 to pass through first. After the sleeve 31 is in place, the elasticity of the spring piece 44 abuts against the outer wall of the sleeve 31, thereby preventing the sleeve 31 from axially dislodging.

[0025] Reference Figure 4 and Figure 5 As shown, the plug assembly 3 further includes an end cap 5, which is inserted into the connecting groove 21 and engages with it. A pressure bevel 52 is formed on the inner wall of the end cap 5, which extends from the end of the end cap 5 to its middle, causing the inner diameter of the end cap 5 to gradually shrink. During assembly, the end cap 5 is first inserted into the connecting groove 21 and engages with it. The claw 4 is inserted into the end cap 5, the hook block 43 abuts against the pressure bevel 52, and the sleeve 31 with the connector 1 is inserted into the claw 4. The side of the spring 44 abuts against the outer wall of the sleeve 31. Compared to Embodiment 1, Embodiment 2 can be installed by first putting the sleeve 31 onto the connector 1, then placing the end cap 5 into the connector 2, then inserting the claw 4 into the end cap 5, and finally inserting the sleeve 31 along with the connector 1 into the claw 4. Compared to Embodiment 1, which uses the method of simultaneously putting the sleeve 31 and the end cap 5 onto the connector 1, the installation process of Embodiment 2 can be limited by the connecting groove 21, resulting in higher installation accuracy.

[0026] Reference Figure 4 and Figure 5As shown, the jaw 4 further includes a jaw ring 41 and several jaw plates 42. The several jaw plates 42 are fixedly connected to the jaw ring 41 and are distributed circumferentially along the jaw ring 41, with a movable gap between adjacent jaw plates 42. A hook block 43 is disposed on the jaw plate 42. During the process of the jaw 4 being inserted into the end cap 5, the jaw plate 42 first deforms and tilts, causing the hook block 43 to slide in and abut against the inclined surface 52. The independent deformation characteristics of the jaw plate 42 allow for uniform clamping under different coaxiality conditions, improving the fault tolerance of the connection structure.

[0027] Reference Figure 4 and Figure 5 As shown, the outer wall of the claw ring 41 is provided with a retaining edge 45, and the plug assembly 3 also includes a snap fastener 32. After the claw 4 is inserted into the end cap 5, the snap fastener 32 is fitted onto the claw piece 42 and locked between the end face of the end cap 5 and the retaining edge 45 to prevent the claw 4 from moving toward the connecting groove 21. The axial limit formed by the snap fastener 32 can prevent the claw 4 from moving into the groove under force, causing the hook block 43 to spring open, the spring piece 44 to separate from the sleeve 31, resulting in the sleeve 31 coming off. In this embodiment, the snap fastener 32 is a ring structure with a notch, so that the snap fastener 32 can move radially by deformation, thereby fitting onto or coming off the claw piece 42.

[0028] Reference Figure 3 As shown, furthermore, the outer wall of the end cap 5 is provided with several cards 51. During the process of inserting the end cap 5 into the connecting groove 21, the cards 51 first deform through the opening of the connecting groove 21, and then form a barb structure in the connecting groove 21 to lock the end cap 5 in the connecting groove 21. The barb structure of the cards 51 realizes a one-way locking function, which not only ensures the convenience of assembly, but also effectively prevents reverse dislodgement.

[0029] In summary, this invention provides a threadless, rapid pipe connection solution through the elastic snap-fit ​​structure of the plug assembly and the connecting groove. This solution, through the synergistic action of components such as the ferrule, end cap, and clamps, solves the problems of cumbersome operation and hose torsion damage associated with traditional threaded connections. Furthermore, through multiple locking mechanisms and elastic compensation design, it achieves a dual improvement in connection efficiency and structural reliability, making it particularly suitable for piping systems in valve control applications that require frequent disassembly or are subject to vibration.

[0030] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A pipe connection component, comprising a connector (1) mounted on the end of a hose and a connector (2) disposed on the outer wall of a valve body, characterized in that: The connector (2) has a connecting groove (21) and the connector (1) can be inserted into the connecting groove (21). The connector (1) is fitted with a plug assembly (3). When the connector (1) is inserted into the connecting groove (21), the plug assembly (3) is inserted between the connecting groove (21) and the connector (1) to lock the connector (1) in the connecting groove (21).

2. The pipe connection component according to claim 1, characterized in that: The plug assembly (3) includes a sleeve (31), which is coaxially sleeved on the connector (1) and plugged between the connecting groove (21) and the connector (1). The end of the connector (1) is provided with a retaining edge (11), and the sleeve (31) is provided with a pressing edge (311). The pressing edge (311) abuts against the retaining edge (11). During assembly, the sleeve (31) is first sleeved onto the connector (1) and then inserted into the connecting groove (21). The outer wall of the sleeve (31) is stuck in the connecting groove (21).

3. The pipe connection component according to claim 2, characterized in that: The plug assembly (3) also includes an end cap (5), which is inserted into the connecting groove (21) and engages with the connecting groove (21). A sleeve (31) is inserted into the end cap (5), and the outer side wall of the sleeve (31) engages with the inner side wall of the end cap (5).

4. The pipe connection component according to claim 3, characterized in that: The outer wall of the sleeve (31) is formed with a retaining ring (312), and the inner wall of the end cap (5) is formed with a pressure bevel (52). The pressure bevel (52) extends from the end of the end cap (5) to the middle, so that the inner diameter of the end cap (5) gradually shrinks. During assembly, the end cap (5) is put on the sleeve (31), the sleeve (31) is first inserted into the connecting groove (21) with the connector (1), and then the end cap (5) is pressed into the connecting groove (21), and the end face side of the retaining ring (312) abuts against the pressure bevel (52).

5. The pipe connection component according to claim 2, characterized in that: The plug assembly (3) also includes a claw (4), the inner wall of which is provided with a plurality of inclined springs (44), and the outer wall of which is provided with hooks (43).

6. The pipe connection component according to claim 5, characterized in that: The plug assembly (3) also includes an end cap (5), which is inserted into the connecting groove (21) and engages with the connecting groove (21). An inclined surface (52) is formed on the inner side wall of the end cap (5), which extends from the end of the end cap (5) to its middle part, causing the inner diameter of the end cap (5) to gradually shrink.

7. The pipe connection component according to claim 6, characterized in that: The claw (4) includes a claw ring (41) and several claw plates (42). Several claw plates (42) are fixedly connected to the claw ring (41) and are distributed circumferentially along the claw ring (41). There is a gap between adjacent claw plates (42). The hook block (43) is set on the claw plate (42). During the process of the claw (4) being inserted into the end cap (5), the claw plate (42) first deforms and tilts so that the hook block (43) slides into abutting against the inclined surface (52).

8. The pipe connection component according to claim 7, characterized in that: The outer side wall of the claw ring (41) is provided with a buckle (45), and the plug assembly (3) also includes a buckle (32). After the claw (4) is inserted into the end cap (5), the buckle (32) is sleeved on the claw (42) and locked between the end face of the end cap (5) and the buckle (45) to prevent the claw (4) from moving toward the connecting groove (21).

9. The pipe connection component according to claim 3, 4, 6, 7, or 8, characterized in that: The outer wall of the end cap (5) is provided with several cards (51). During the process of inserting the end cap (5) into the connecting groove (21), the cards (51) first deform through the opening of the connecting groove (21), and then form a barb structure in the connecting groove (21) to lock the end cap (5) in the connecting groove (21).