CN114776915A

CN114776915A - Quick joint for pipeline

Info

Publication number: CN114776915A
Application number: CN202210520938.0A
Authority: CN
Inventors: 蔡国平; 傅建华
Original assignee: Guangzhou Garnor Industrial Technology Co ltd
Current assignee: Guangzhou Garnor Industrial Technology Co ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-07-22

Abstract

The invention relates to the technical field of pipeline connection, and discloses a pipeline quick connector which comprises a male connector and a female connector; the male connector comprises a first connector part and a first tail part, and the female connector comprises a second connector part and a second tail part; a first annular groove is formed in the outer peripheral surface of the first joint part, and a movable release ring is sleeved on the outer periphery of the first annular groove; the inner circumferential surface of the second joint part is provided with a second annular groove, a lock pin matched with the first annular groove is arranged in the second annular groove, one end of the lock pin is rotatably connected in the second annular groove, and the other end of the lock pin is connected with the second annular groove through an elastic piece. This quick joint of pipeline structure is simple, does not need the user to possess operating skill, and simple to operate can improve the installation effectiveness, can guarantee again not to cause the influence to external connection pipeline.

Description

Quick joint for pipeline

Technical Field

The invention relates to the technical field of pipeline connection, in particular to a pipeline quick connector.

Background

At present, it is often necessary in industry to connect two segments of high-pressure pipeline, and a pipe quick-coupling is a product capable of connecting or disconnecting the pipeline, and a conventional quick-coupling includes two couplings, which are respectively connected to two segments of pipeline to be connected, so as to achieve the purpose of connection.

Most of the pipeline quick connectors at the present stage adopt a thread fastening mode, but the mode has high requirements on the skills of operators, the operation is inconvenient, the operators are required to use wrenches for assistance when the pipeline quick connectors are installed or disassembled, the installation efficiency is often low, and the hoses are connected in a thread fastening mode to cause the pipelines to be twisted and deformed.

Disclosure of Invention

The invention aims to provide a quick pipeline joint, which aims to solve the technical problems of low installation efficiency of the quick pipeline joint and pipeline distortion and deformation caused during installation.

In order to solve the technical problems, the invention provides the following technical scheme: a quick joint for a pipeline comprises a male joint and a female joint, wherein the male joint comprises a first joint part and a first tail part, and the female joint comprises a second joint part and a second tail part;

a first annular groove is formed in the outer peripheral surface of the first joint part, and a movable release ring is sleeved on the outer periphery of the first annular groove;

the inner peripheral surface of the second joint part is provided with a second annular groove, the second annular groove is provided with a lock pin matched with the first annular groove, one end of the lock pin is rotatably connected in the second annular groove, and the other end of the lock pin is connected with the second annular groove through an elastic piece.

Optionally, a third annular groove is formed in the inner circumferential surface of the second joint part, and the third annular groove is located between the second annular groove and the second tail part; and a sealing ring is arranged in the third annular groove.

Optionally, a retaining ring is further disposed in the third annular groove, the sealing ring is disposed at one end, close to the second tail, of the third annular groove, and the retaining ring is disposed at one end, far away from the second tail, of the third annular groove.

Optionally, at least two locking pins are provided, and at least two locking pins are uniformly distributed on the inner periphery of the second annular groove.

Optionally, the male connector is provided with a positioning device, and the positioning device is arranged between the first connector part and the first tail part.

Optionally, the positioning device is a detachable positioning ring.

Optionally, the release ring is axially slidable along the first annular groove.

Optionally, the elastic member and the sealing ring are both rubber rings.

Optionally, the first joint part and the second joint part are in transition fit.

Optionally, the first tail portion and the second tail portion are both provided with external threads.

Compared with the prior art, the quick pipe joint has the advantages that:

according to the quick pipeline connector, the first annular groove and the movable release ring are arranged on the outer peripheral surface of the male connector, the lock pin and the elastic piece are arranged on the inner peripheral surface of the female connector, and when the quick pipeline connector is used, the connection relation between the lock pin and the first annular groove is changed, so that the quick assembly and disassembly of the male connector and the female connector are achieved. This quick joint of pipeline structure is simple, does not need the user to possess operating skill, and simple to operate can improve the installation effectiveness, can guarantee again not to cause the influence to external connection pipeline.

Drawings

FIG. 1 is a partial cross-sectional view of a quick connector for pipes according to an embodiment of the present invention;

fig. 2 is a partially enlarged view of a second joint portion of the female joint shown in fig. 1.

In the figure, 100, a pipeline quick connector; 1. a male connector; 2. a female joint; 11. a first joint part; 12. a first tail portion; 13. a first annular groove; 14. releasing the ring; 15. a second annular groove; 16. a third annular groove; 17. a lock pin; 18. an elastic member; 19. a retainer ring; 20. a seal ring; 21. a second joint portion; 22. a second tail portion; 23. positioning device

Detailed Description

The following detailed description of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but the information should not be limited to these terms, which are used only to distinguish the same type of information from each other. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

As shown in fig. 1-2, a quick pipe joint 100 according to an embodiment of the present invention includes a male joint 1 and a female joint 2, where the male joint 1 includes a first joint part 11 and a first tail part 12, and the female joint 2 includes a second joint part 21 and a second tail part 22; a first annular groove 13 is formed in the outer peripheral surface of the first joint part 11, and a movable release ring 14 is sleeved on the outer periphery of the first annular groove 13, namely the first annular groove 13 provides a stable moving space for the release ring 14; the inner peripheral surface of the second joint part 21 is provided with a second annular groove 15, a lock pin 17 matched with the first annular groove 13 is arranged in the second annular groove 15, one end of the lock pin 17 is rotatably connected in the second annular groove 15, and the other end of the lock pin 17 is connected with the second annular groove 15 through an elastic piece 18, namely, the second annular groove 15 provides a storage and fixing space for the lock pin 17 and the elastic piece 18.

Based on the technical scheme, when the quick connector is connected, the first connector part 11 of the male connector 1 is inserted into the second connector part 21 of the female connector 2, when the first annular groove 13 on the first connector part 11 is aligned with the second annular groove 15 on the second connector part 21, one end of the lock pin 17 is automatically bounced into the first annular groove 13 under the elastic action of the elastic piece 18, the lock pin 17 is buckled with the first annular groove 13 to form a connection fastening state, and the lock pin 17 is made of special hard steel and used for providing enough supporting force to avoid pulling out when a pipeline bears pressure; when the first joint part 11 is disassembled, the first joint part 11 is inserted into the second joint part 21 and then pulled outwards, the release ring 14 moves from the initial position to the other end in the first annular groove 13, so that the lock pin 17 is extruded and pushed into the second annular groove 15 together with the elastic piece 18, and at the moment, the lock pin 17 unlocks the first annular groove 13, and the first joint part 11 can be pulled outwards. The release ring 14 is arranged on the periphery of the first annular groove 13, so that the disassembly efficiency can be improved, the male joint 1 and the female joint 2 are integrally connected in a plug-in manner to realize the plugging and unplugging of the quick pipeline joint, the installation efficiency is improved, and the maintenance and replacement costs are reduced.

Preferably, in this embodiment, a third annular groove 16 is formed on the inner circumferential surface of the second joint part 21, the third annular groove 16 is formed between the second annular groove 15 and the second tail part 22, a sealing ring 20 is disposed in the third annular groove 16, and the third annular groove 16 provides a compression sealing space for the male joint 1, so that the overall sealing performance of the quick pipe joint 100 is improved, and it is ensured that the male joint 1 and the female joint 2 do not leak during assembly.

Based on the above technical solution, in this embodiment, the third annular groove 16 is further provided with the retaining ring 19, the retaining ring 19 is made of PDFE and has good wear resistance and supporting force, the sealing ring 20 is disposed at an end of the third annular groove 16 close to the second tail portion 22, the retaining ring 19 is disposed at an end of the third annular groove 16 far from the second tail portion 22, the retaining ring 19 and the sealing ring 20 are used in a matching manner, and in the process of inserting the first joint portion 11 into the second joint portion 21, the retaining ring 19 prevents the sealing ring 20 from being undercut or extruded.

Further, at least two locking pins 17 are arranged, at least two locking pins 17 are uniformly distributed on the inner periphery of the second annular groove 15, and when the first joint part 11 is inserted into the second joint part 21, the uniformly distributed locking pins 17 can keep stress balance and more stably buckle the first annular groove 13.

More preferably, in the present embodiment, the positioning device 23 is disposed between the first joint part 11 and the first tail part 12, so that the first annular groove 13 can accurately correspond to the position of the second annular groove 15, and the first joint part 11 is prevented from being inserted too deeply into the second joint part 21 and being unable to be buckled with each other.

Also for the same purpose, in the present embodiment, the positioning device 23 is preferably a detachable positioning ring made of POM material, which has excellent weather resistance and can prevent aging and falling off during use.

In this embodiment, the release ring 14 is axially slidable along said first annular groove 13 in order to allow the locking pin 17 to be squeezed.

More specifically, as shown in fig. 2, the elastic element 18 and the seal ring 20 both use high-quality nitrile rubber, which has good elasticity, and the first joint part 11 can be quickly inserted into and pulled out of the second joint part 21, and particularly, the aging performance is stable.

Correspondingly, in the present embodiment, the first joint part 11 and the second joint part 21 are in transition fit, so that the male joint 1 and the female joint 2 can be assembled and disassembled more easily.

In this embodiment, further, the first tail portion 12 and the second tail portion 22 are externally threaded for secure connection to an external high pressure pipe or equipment interface.

The working process of the invention is as follows: when the assembly is carried out, the first joint part 11 of the male joint 1 is inserted into the second joint part 21 of the female joint 2, and when the first annular groove 13 on the first joint part 11 is aligned with the second annular groove 15 on the second joint part 21, one end of the lock pin 17 automatically falls into the first annular groove 13 to buckle the first annular groove 13; during disassembly, the first joint part 11 is further inserted into the second joint part 21 and then pulled out, the release ring 14 moves from the initial position to the other end in the first annular groove 13, so that the lock pin 17 is extruded and is pushed into the first annular groove 13 together with the elastic part 18, the lock pin 17 unlocks the first annular groove 13, the first joint part 11 is pulled out outwards at the moment, and the quick pipe joint is plugged and pulled out.

In summary, the embodiment of the present invention provides a quick pipe joint 100, wherein a first annular groove 13 and a movable release ring 14 are disposed on an outer circumferential surface of a male joint 1, a lock pin 17 and an elastic member 18 are disposed on an inner circumferential surface of a female joint 2, and a connection relationship between the lock pin 17 and the first annular groove 13 is changed during use, so as to achieve quick assembly and disassembly of the male joint 1 and the female joint 2. This quick joint of pipeline structure is simple, does not need the user to possess operating skill, and simple to operate can improve the installation effectiveness, can guarantee again not to cause the influence to external connection pipeline.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A quick pipe joint (100) comprising a male joint (1) and a female joint (2), characterized in that: the male connector (1) comprises a first connector part (11) and a first tail part (12), and the female connector (2) comprises a second connector part (21) and a second tail part (22);

a first annular groove (13) is formed in the outer peripheral surface of the first joint part (11), and a movable release ring (14) is sleeved on the outer periphery of the first annular groove (13);

the inner circumferential surface of the second joint part (21) is provided with a second annular groove (15), the second annular groove (15) is provided with a lock pin (17) matched with the first annular groove (13), one end of the lock pin (17) is rotatably connected into the second annular groove (15), and the other end of the lock pin is connected with the second annular groove (15) through an elastic piece (18).

2. The pipe quick-coupling (100) of claim 1, wherein: a third annular groove (16) is formed in the inner peripheral surface of the second joint part (21), and the third annular groove (16) is located between the second annular groove (15) and the second tail part (22); and a sealing ring (20) is arranged in the third annular groove (16).

3. The pipe quick-coupling (100) according to claim 2, wherein: a check ring (19) is further arranged in the third annular groove (16), the sealing ring (20) is arranged at one end, close to the second tail portion (22), in the third annular groove (16), and the check ring (19) is arranged at one end, far away from the second tail portion (22), in the third annular groove (16).

4. The pipe quick-coupling (100) of claim 1, wherein: the number of the lock pins (17) is at least two, and the at least two lock pins (17) are uniformly distributed on the inner periphery of the second annular groove (15).

5. The pipe quick-coupling (100) according to any one of claims 1 to 4, wherein: male joint (1) is equipped with positioner (23), positioner (23) are located between first connector portion (11) and first afterbody (12).

6. The pipe quick connector (100) according to claim 5, wherein: the positioning device (23) is a detachable positioning ring.

7. The pipe quick-coupling (100) of claim 1, wherein: the release ring (14) is axially slidable along the first annular groove (13).

8. The pipe quick-coupling (100) of claim 1, wherein: the elastic piece (18) and the sealing ring (20) are both rubber rings.

9. The pipe quick-coupling (100) of claim 1, wherein: the first joint part (11) and the second joint part (21) are in transition fit.

10. The pipe quick-coupling (100) of claim 1, wherein: the first tail part (12) and the second tail part (22) are both provided with external threads.