Quick connect pipe fitting

By using a direct-insertion quick-connect fitting, the pipes can be quickly connected and disconnected using a hexagonal nut and an adapter wrench. This solves the problems of slow connection speed and inconvenient disassembly in existing technologies, making it suitable for frequent disassembly and assembly scenarios and improving operational convenience and safety.

CN224339658UActive Publication Date: 2026-06-09薛香丽

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
薛香丽
Filing Date
2025-08-12
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing pipe connection methods require wrapping with raw rubber tape or applying glue for sealing, which is slow and inconvenient to disassemble, especially in scenarios with frequent disassembly and assembly.

Method used

The system uses a straight-in quick-connect fitting, which allows for quick connection and disconnection of pipes by rotating a hexagonal nut and an adapter wrench. It uses a locking clip and a crimping fitting to lock and loosen the pipes, and combines O-rings and gaskets for sealing.

Benefits of technology

It enables rapid connection and disassembly of pipes, improves installation efficiency, is suitable for scenarios with frequent disassembly and assembly, avoids the trouble of traditional threaded connections, and enhances the convenience and safety of operation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224339658U_ABST
    Figure CN224339658U_ABST
Patent Text Reader

Abstract

The utility model discloses a quick -witted pipe fitting of pipeline connecting piece technical field, including connecting pipe, the both ends fixed setting of connecting pipe have water pipe joint, the inside bushing of water pipe joint has fixed card, and the thread bushing of both sides water pipe joint has pressure joint piece, and one end outer surface fixed connection of pressure joint piece has hexagon nut, one side of connecting pipe is equipped with the adaptation wrench, and the adaptation wrench with hexagon nut is adapted. This setting adopts both ends straight -inserted type pipeline connection mode, and then is locked through the rotation and is tightened, and simultaneously the corresponding rotation tool is assembled, need not to carry additionally, make dismounting more convenient and fast.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the technical field of pipe connectors, specifically relating to quick-connect pipes. Background Technology

[0002] In daily production and life, pipe connections for water, gas, and oil systems typically require the use of connectors. Existing valves or pipe fittings are generally connected to pipes via threads, and the connection point needs to be sealed with Teflon tape or adhesive, resulting in slow connection speeds and inconvenient operation.

[0003] Currently, there are some quick-connect fittings on the market, such as the quick-connect fitting disclosed in CN214535005U, which belongs to the field of pipe connection technology. It solves the problem of complex structure of existing quick-connect fittings. This quick-connect fitting includes a body with a connection hole, in which a sealing ring, a pad, and a retaining spring are provided. The body has a step to support the sealing ring, the pad is pressed against the sealing ring, and the body has a blocking structure to prevent the retaining spring from detaching from the body. The retaining spring is in the shape of a spiral sheet, and the pad and the retaining spring are integrated. The inner wall of the retaining spring is evenly distributed with claws that fold inward toward the pad.

[0004] The existing threaded pipe connection method requires wrapping raw rubber tape or applying glue at the connection point for sealing, which is slow and troublesome to disassemble during later maintenance, thus having certain limitations. Utility Model Content

[0005] The purpose of this invention is to provide a quick-connect fitting to solve the problem mentioned in the background art of time-consuming and inconvenient disassembly of existing pipe connections using threaded connections. This device uses a direct-insertion quick-connect fitting, which can be connected and disassembled by rotation, greatly improving installation efficiency. It is suitable for scenarios with frequent disassembly and assembly, such as temporary water supply. It is easy to install and disassemble. Compared with the traditional threaded connection method, this device has significant advantages in terms of ease of installation and disassembly.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect fitting, including a connecting pipe, with water pipe connectors fixedly installed at both ends of the connecting pipe, a fixing clip sleeved inside the water pipe connector, and crimping parts threaded onto the threads of the water pipe connectors on both sides. A hexagonal nut is fixedly connected to the outer surface of one end of the crimping part, and an adapter wrench is provided on one side of the connecting pipe, the adapter wrench being compatible with the hexagonal nut.

[0007] Preferably, a snap-fit ​​groove is fixedly provided on one side of the hexagonal nut, and snap-fit ​​blocks are fixedly connected to both ends of one side of the adapter wrench, and the snap-fit ​​blocks can be sleeved on the snap-fit ​​groove.

[0008] Preferably, the outer surface of the connecting pipe is provided with an anti-slip groove, the inner wall of the water pipe joint is provided with a fixing groove, and the outer surface of the crimping member is provided with a threaded fixing tooth.

[0009] Preferably, the inner wall of the water pipe joint is provided with a fixing groove, and the outer surface of the crimping member is fixedly provided with threaded fixing teeth.

[0010] Preferably, an O-ring is fixedly fitted on the inner side of the water pipe joint, and a gasket is fitted on the outer side of the O-ring.

[0011] Preferably, the fixing clip includes a sleeve and a pressing plate, one end of the sleeve is fixedly connected to the pressing plate, and the sleeve and the pressing plate are provided with elastic grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model adopts a two-end straight-insertion pipe connection method, and then locks it by rotating and tightening. At the same time, it is equipped with a corresponding rotating tool, so there is no need to carry it separately, making disassembly and assembly more convenient and quick. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a side view of the present invention.

[0016] Figure 3 This is a schematic diagram of the structure of the wrench adapted to this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the fixing card of this utility model.

[0018] In the diagram: 1. Connecting pipe; 2. Water pipe connector; 3. Fixing clip; 4. Flexible groove; 5. Fixing tooth groove; 6. Crimping component; 7. Threaded fixing tooth; 8. O-ring; 9. Washer; 10. Hex nut; 11. Anti-slip tooth groove; 12. Snap-fit ​​groove; 13. Snap-fit ​​block; 16. Adapter wrench; 17. Socket pipe; 18. Crimping plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a quick-connect fitting, including a connecting pipe 1, with water pipe joints 2 fixedly installed at both ends of the connecting pipe 1, a fixing clip 3 sleeved inside the water pipe joint 2, and a crimping member 6 threaded on both sides of the water pipe joint 2, with a hexagonal nut 10 fixedly connected to the outer surface of one end of the crimping member 6, and an adapter wrench 16 provided on one side of the connecting pipe 1, which is compatible with the hexagonal nut 10.

[0021] In this implementation scheme, during installation, the hexagonal nut 10 can be rotated using the pre-equipped adapter wrench 16, causing the crimping piece 6 to extend a certain distance from the connecting pipe 1. At this point, the pipe is passed through the crimping piece 6 and fitted onto the outer surface of the fixing clip 3, which clamps and limits the pipe. Then, the hexagonal nut 10 is tightened again using the adapter wrench 16, allowing the crimping piece 6 to tightly lock the connection between the pipe and the fixing clip 3, while also pressing the fixing clip 3, enabling the pipes on both sides to be quickly connected. During installation, simply loosen the threads of the crimping piece 6 to complete the process. Installation and disassembly are very convenient. This design uses a two-end straight-insertion pipe connection method, which is then locked by rotation and tightening. It also comes with corresponding rotation tools, eliminating the need to carry additional tools, making disassembly and assembly more convenient and quick.

[0022] Specifically, a snap-fit ​​groove 12 is fixedly provided on one side of the hexagonal nut 10, and snap-fit ​​blocks 13 are fixedly connected to both ends of one side of the adapter wrench 16. The snap-fit ​​blocks 13 can be fitted into the snap-fit ​​groove 12.

[0023] In this embodiment, unlike traditional wrenches, the wrench is fitted into a side groove. This allows for proper placement of the wrench and, when the locking block 13 is fitted into the locking groove 12, the adapter wrench 16 can be rotated for disassembly and installation. This design not only saves space but also improves work efficiency, avoids the problem of traditional wrenches being easily lost, and makes the entire operation process smoother and safer.

[0024] Specifically, the outer surface of the connecting pipe 1 is fixedly provided with anti-slip groove 11, the inner wall of the water pipe joint 2 is fixedly provided with fixing groove 5, and the outer surface of the crimping part 6 is fixedly provided with threaded fixing teeth 7.

[0025] In this embodiment, the threaded fixing teeth 7 and fixing tooth grooves 5 are matched and adapted to each other, so that the crimping member 6 can be threaded onto the inner wall of the water pipe joint 2.

[0026] Specifically, the inner wall of the water pipe connector 2 is provided with a fixing groove 5, and the outer surface of the crimping part 6 is fixedly provided with threaded fixing teeth 7.

[0027] In this embodiment, the fixed tooth groove 5 and the threaded fixed tooth 7 are matched to form a threaded connection to the crimping member 6.

[0028] Specifically, an O-ring 8 is fixedly fitted inside the water pipe connector 2, and a gasket 9 is fitted outside the O-ring 8.

[0029] In this embodiment, the O-ring 8 and gasket 9 can achieve a certain degree of water tightness, which can effectively prevent water leakage.

[0030] Specifically, the fixing clip 3 includes a sleeve 17 and a pressing plate 18. One end of the sleeve 17 is fixedly connected to the pressing plate 18, and the sleeve 17 and the pressing plate 18 are provided with elastic grooves 4.

[0031] In this embodiment, by fitting the pipe onto the outer surface of the sleeve 17, the crimping plate 18 can be crimped onto the outer surface of the gasket 9. After the threaded crimping member 6 is tightened, the crimping member 6 can clamp the pipe and sleeve 17, thus securing the pipe. Then, the crimping member 6 is crimped onto the crimping plate 18 to clamp the fixing clip 3. During use, the hexagonal nut 10 can be rotated using the pre-equipped adapter wrench 16 to extend the crimping member 6 from the connecting pipe 1 a certain distance, releasing the clamping state of the fixing clip 3. At this time, the pipe is passed through the crimping member 6 and fitted onto the outer surface of the fixing clip 3, which can clamp and limit the pipe. Then, the hexagonal nut 10 is tightened again using the adapter wrench 16, so that the crimping member 6 can tightly lock the pipe and the fixing clip 3, and at the same time, it can clamp the fixing clip 3, so that the pipes on both sides can be quickly connected. During installation, the threaded crimping member 6 can be loosened to complete the process. Installation and disassembly are very convenient.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-connect fitting, comprising a connecting pipe (1), characterized in that: Water pipe connectors (2) are fixedly installed at both ends of the connecting pipe (1). A fixing clip (3) is sleeved inside the water pipe connector (2). A crimping piece (6) is threaded on both sides of the water pipe connector (2). A hexagonal nut (10) is fixedly connected to the outer surface of one end of the crimping piece (6). An adapter wrench (16) is provided on one side of the connecting pipe (1). The adapter wrench (16) is compatible with the hexagonal nut (10).

2. The quick-connect fitting according to claim 1, characterized in that: The hexagonal nut (10) has a snap-fit ​​groove (12) fixedly opened on one side, and the adapter wrench (16) has snap-fit ​​blocks (13) fixedly connected to both ends on one side. The snap-fit ​​blocks (13) can be sleeved in the snap-fit ​​groove (12).

3. The quick-connect fitting according to claim 1, characterized in that: The outer surface of the connecting pipe (1) is fixedly provided with anti-slip groove (11), the inner wall of the water pipe joint (2) is fixedly provided with fixing groove (5), and the outer surface of the crimping member (6) is fixedly provided with threaded fixing teeth (7).

4. The quick-connect fitting according to claim 1, characterized in that: The inner wall of the water pipe connector (2) is provided with a fixing groove (5), and the outer surface of the crimping member (6) is fixedly provided with threaded fixing teeth (7).

5. The quick-connect fitting according to claim 1, characterized in that: An O-ring (8) is fixedly fitted on the inner side of the water pipe connector (2), and a gasket (9) is fitted on the outer side of the O-ring (8).

6. The quick-connect fitting according to claim 1, characterized in that: The fixing clip (3) includes a sleeve (17) and a pressing plate (18). One end of the sleeve (17) is fixedly connected to the pressing plate (18). The sleeve (17) and the pressing plate (18) are provided with elastic slots (4).