CN211667356U

CN211667356U - Quick connector

Info

Publication number: CN211667356U
Application number: CN201922497203.7U
Authority: CN
Inventors: 黄谢; 覃中华; 梁智亨; 李宇辉
Original assignee: Guangdong Zhonghe Plastic Co ltd; Guangdong Zhonghe Zhongde Fine Chemical Research Development Co ltd
Current assignee: Guangdong Zhonghe Plastic Co ltd; Guangdong Zhonghe Zhongde Fine Chemical Research Development Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-13
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a quick joint, including connecting the body, the inside that connects the body is equipped with the runner, and the lateral wall that connects the body is equipped with pressure relief device, and pressure relief device is linked together with the runner, connects the body including public end joint and female end joint, and public end joint inserts in the female end joint and with female end joint fixed connection, pressure relief device locates on the lateral wall that public end joint or female end connect. The utility model provides a quick-operation joint can reduce the residual pressure of pipeline through the fluid in the pressure relief device in time discharging runner after accomplishing the work of pressurizing to avoid connecting the flying and accidentally injuring operating personnel.

Description

Quick connector

Technical Field

The utility model relates to a fluid delivery control technical field especially relates to a quick-operation joint.

Background

Quick-connect couplings are removable connections between pipe elements as a means of connection. The pressure vessel needs to maintain pressure during pressurizing, and pressure also exists in the quick connector at the moment. The existing quick coupling does not have a pressure relief device, the pressure in the quick coupling cannot be effectively released after pressurization is completed, and if the residual pressure is too large when the quick coupling is dismounted, the condition that the quick coupling flies up to injure an operator by mistake can occur.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a quick coupling can effectively solve because intraductal excess pressure leads to the problem that connects the fright, avoids operating personnel to receive the injury.

Based on this, the utility model provides a quick-operation joint, including connecting the body, the inside that connects the body is equipped with the runner, the lateral wall that connects the body is equipped with pressure relief device, pressure relief device with the runner is linked together, it includes public end joint and female end joint to connect the body, public end joint inserts in the female end joint and with female end joint fixed connection, pressure relief device locates public end joint or on the lateral wall of female end joint.

Preferably, the male connector comprises a male connecting part and a male extending part, the female connector comprises a female connecting part and a female extending part, the male connecting part is inserted into the female connecting part and fixedly connected with the female connecting part, and the pressure relief device is arranged on the outer side wall of the male extending part or the outer side wall of the female extending part.

Preferably, the inner side wall of the female end extension portion is provided with an internal thread, the female end connector can be in threaded connection with the pressure container through the internal thread, the outer side wall of the male end extension portion is provided with an external thread, and the male end connector can be in threaded connection with the air inlet hose through the external thread.

Preferably, a sealing gasket is arranged at the bottom of the internal thread.

As the preferred scheme, the male end connecting part and the end connected with the female end connecting part are provided with a first groove, and a sealing ring is sleeved in the first groove.

According to the preferable scheme, the female end connecting part is provided with a limiting steel ball, the outer side wall of the male end connecting part is provided with a second groove matched with the limiting steel ball, and the male end connecting part is connected with the female end connecting part in a clamping mode through the limiting steel ball and the second groove.

Preferably, an outer sleeve for locking the male end connecting part and the female end connecting part is sleeved on the outer side wall of the female end connecting part.

Preferably, the outer side wall of the male end extension part is provided with a connector, the pressure relief device is connected to the connector, and the male end extension part is in threaded connection with the pressure relief device.

Preferably, the pressure relief device is a pressure relief valve.

As a preferred scheme, the pressure relief valve comprises a valve body, a pressure relief steel ball and a spring, wherein the valve body is provided with an inlet valve hole and an outlet valve hole, one end of the spring is fixed at one end of the outlet valve hole, the other end of the spring is fixedly connected with the pressure relief steel ball and pushes the pressure relief steel ball against one end of the inlet valve hole, and the diameter of the pressure relief steel ball is larger than that of the inlet valve hole.

The embodiment of the utility model provides a pair of quick-operation joint compares with prior art, and its beneficial effect lies in:

the utility model provides a quick-operation joint is including connecting the body, and the inside that connects the body is equipped with the runner, and the lateral wall that connects the body is equipped with pressure relief device, and pressure relief device is linked together with the runner, connects the body including public end joint and female end joint, and public end joint inserts in the female end joint and with female end joint fixed connection, pressure relief device locates on the lateral wall that public end joint or female end connect. Based on this, quick-operation joint can be through locating the fluid in the pressure relief device in the lateral wall in time discharge runner after accomplishing the work of pressurizing, reduces the residual pressure of pipeline to avoid the joint flying to injure operating personnel by mistake.

Drawings

Fig. 1 is a schematic structural diagram of a quick coupling according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a male end connector according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a female end connector according to an embodiment of the present invention;

fig. 4 is a schematic structural view of the pressure relief device according to the embodiment of the present invention.

In the figure: 1. a connector body; 11. a male end connector; 111. a male end connection portion; 1111. a first groove; 1112. a seal ring; 1113. a second groove; 112. a male end extension; 1121. an interface; 12. a female end connector; 121. a female end connection portion; 1211. limiting steel balls; 122. a female end extension; 1221. a gasket; 123. a jacket; 1231. a spring ring; 2. a flow channel; 3. a pressure relief device; 31. a valve body; 311. an inlet valve bore; 312. an outlet valve bore; 32. releasing the pressure of the steel ball; 33. a pressure relief spring.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to 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.

It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, without departing from the scope of the invention. The "first" information may also be referred to as "second" information, and the "second" information may also be referred to as "first" information.

As shown in fig. 1 to 4, the embodiment of the utility model provides a quick coupling, including connecting body 1, the inside that connects body 1 is equipped with runner 2, and the lateral wall that connects body 1 is equipped with pressure relief device 3, and pressure relief device 3 is linked together with runner 2, connects body 1 to include male end joint 11 and female end joint 12, and male end joint 11 inserts in female end joint 12 and with female end joint 12 fixed connection, and pressure relief device 3 locates on the lateral wall of male end joint 11.

Based on the structure, the quick connector can discharge fluid in the flow channel 2 in time through the pressure relief device 3 arranged on the male end connector 11 after the pressurization work is completed, so that the residual pressure of the pipeline is reduced, and the situation that an operator is accidentally injured by the flying of the connector is avoided.

Specifically, as shown in fig. 1, the male connector 11 includes a male connector portion 111 and a male extension portion 112, the female connector 12 includes a female connector portion 121 and a female extension portion 122, the male connector portion 111 is inserted into the female connector portion 121 and is fixedly connected to the female connector portion 121, and the pressure relief device 3 is disposed on an outer sidewall of the male extension portion 112.

Based on the above structure, the male terminal 11 and the female terminal 12 are connected by the male terminal connection portion 111 and the female terminal connection portion 121, and the pressure reducing operation is completed by providing the pressure relief device 3 in the male terminal extension portion 112.

It should be noted that the pressure relief device 3 may also be arranged on the outer side wall of the female end extension 122, and the technical effect of this change of position of the pressure relief device 3 is the same.

As shown in fig. 1, the inner side wall of the female end extension 122 is provided with an internal thread, and based on the above structure, the female end connector 12 can be screwed with the pressure vessel through the internal thread, and similarly, the outer side wall of the male end extension 112 is provided with an external thread, and the male end connector 11 can be screwed with the air intake hose through the external thread.

Further, as shown in fig. 3, in order to prevent the fluid in the joint from leaking, a packing 1221 is provided at the bottom of the internal thread of the female-end extension 122.

As shown in fig. 2, in order to improve the connection effect between the male connector 11 and the female connector 12 and prevent fluid leakage, a first groove 1111 is formed at one end of the male connector 111 connected to the female connector 121, and a sealing ring 1112 is disposed in the first groove 1111.

Further, as shown in fig. 2 and fig. 3, the female connection portion 121 is provided with a limiting steel ball 1211, the outer side wall of the male connection portion 111 is provided with a second groove 1113 matched with the limiting steel ball 1211, when the male connection portion 111 is inserted into the female connection portion 121 and reaches a certain position, the limiting steel ball 1211 falls into the second groove 1113 to clamp the male connection portion 111, and the male connection portion 111 and the female connection portion 121 complete clamping through the limiting steel ball 1211 and the second groove 1113. In the embodiment of the present invention, the spacing steel balls 1211 are arranged in a plurality of circumferential directions along the female end connecting portion 121, and each spacing steel ball 1211 falls into the second groove 1113.

Furthermore, as shown in fig. 3, an outer sleeve 123 is further sleeved on the outer side wall of the female end connection portion 121, and the outer sleeve 123 is sleeved on the outer side wall of the female end connection portion 121 and can apply pressure to the limiting steel ball 1211 to ensure that the limiting steel ball 1211 is always located in the second groove 1113, so that the stability of the joint connection is ensured, and the male end joint 11 is prevented from being accidentally disengaged.

In addition, the outer sleeve 123 is provided with a clamping groove, and a pressure relief spring ring 1231 is arranged in the clamping groove. Based on the structure, the pressure relief spring ring 1231 can apply a pushing force to the outer sleeve 123 far away from the female end connecting part 121, so that the outer sleeve 123 can be smoothly taken off.

As shown in fig. 2, a connector 1121 is disposed on an outer sidewall of the male end extension 112, the pressure relief device 3 is connected to the connector 1121, a thread is disposed on the connector 1121, and the male end extension 112 is in threaded connection with the pressure relief device 3.

It should be noted that the pressure relief device 3 may be connected to the male connection portion 111 by other connection methods such as welding or clamping.

The embodiment of the utility model provides an in, pressure relief device 3 is preferred to the relief valve, simple structure, and convenient to use can effectively practice thrift the cost. Specifically, as shown in fig. 4, the pressure relief valve includes a valve body 31, a pressure relief steel ball 32 and a pressure relief spring 33, the valve body 31 is provided with an inlet valve hole 311 and an outlet valve hole 312, one end of the pressure relief spring 33 is fixed at one end of the outlet valve hole 312, the other end of the pressure relief spring 33 is fixedly connected with the pressure relief steel ball 32 and pushes the pressure relief steel ball 32 against one end of the inlet valve hole 311, and the diameter of the pressure relief steel ball 32 is larger than that of the inlet valve hole 311.

Based on the above structure, when the pressure relief valve opens and releases the pressure, the fluid in the flow channel 2 of the male end extension 112 flows into the inlet valve hole 311 to apply a thrust to the pressure relief steel ball 32, and meanwhile, the pressure relief steel ball 32 is also subjected to the acting force of the pressure relief spring 33, when the thrust is greater than the acting force of the pressure relief spring 33, the pressure relief steel ball 32 is pushed open, and the fluid flows out of the male end connector 11 through the inlet valve hole 311 and the outlet valve; when the pushing force is smaller than the acting force of the pressure relief spring 33, the pressure relief steel ball 32 returns to the original position under the pushing force of the pressure relief spring 33, and the pressure relief valve is closed. Therefore, the pressure release valve is opened in one direction and can only be opened but not be opened, and the phenomenon that gas outside the joint flows into the joint to pollute the joint can be avoided.

To sum up, the embodiment of the utility model provides a quick-operation joint is equipped with the relief valve at public end extension, can effectively solve the quick-operation joint problem of flying that intraductal excess pressure leads to, has advantages such as simple structure, reliable durable simultaneously.

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

Claims

1. The utility model provides a quick-operation joint, its characterized in that, includes the joint body, the inside that connects the body is equipped with the runner, the lateral wall that connects the body is equipped with pressure relief device, pressure relief device with the runner is linked together, connect the body including public end joint and female end joint, public end joint inserts in the female end joint and with female end joint fixed connection, pressure relief device locates public end joint or on the lateral wall of female end joint.

2. The quick connector according to claim 1, wherein the male connector comprises a male connector portion and a male extension portion, the female connector comprises a female connector portion and a female extension portion, the male connector portion is inserted into the female connector portion and is fixedly connected with the female connector portion, and the pressure relief device is disposed on an outer sidewall of the male extension portion or the female extension portion.

3. The quick connector of claim 2, wherein the inner sidewall of the female end extension is provided with an internal thread through which the female end connector is threadably connected to the pressure vessel, and the outer sidewall of the male end extension is provided with an external thread through which the male end connector is threadably connected to the intake hose.

4. The quick connector of claim 3, wherein the bottom of the internal thread is provided with a gasket.

5. The quick connector according to claim 2, wherein a first groove is formed at one end of the male end connecting portion connected with the female end connecting portion, and a sealing ring is sleeved in the first groove.

6. The quick connector according to claim 2, wherein the female connecting portion is provided with a limiting steel ball, the outer side wall of the male connecting portion is provided with a second groove matched with the limiting steel ball, and the male connecting portion is connected with the female connecting portion in a clamping manner through the limiting steel ball and the second groove.

7. The quick connector of claim 2, wherein an outer sidewall of the female end connection portion is sleeved with a jacket for locking the male end connection portion with the female end connection portion.

8. The quick connector of claim 2, wherein the male end extension has an interface on an outer sidewall thereof, the pressure relief device is connected to the interface, and the male end extension is threadedly connected to the pressure relief device.

9. The quick connector of claim 2 wherein the pressure relief device is a pressure relief valve.

10. The quick coupling of claim 9, wherein the pressure relief valve comprises a valve body, a pressure relief steel ball and a spring, the valve body is provided with an inlet valve hole and an outlet valve hole, one end of the spring is fixed at one end of the outlet valve hole, the other end of the spring is fixedly connected with the pressure relief steel ball and pushes the pressure relief steel ball against one end of the inlet valve hole, and the diameter of the pressure relief steel ball is larger than that of the inlet valve hole.