CN210318977U

CN210318977U - High-sealing-performance quick plug connector

Info

Publication number: CN210318977U
Application number: CN201920896509.7U
Authority: CN
Inventors: 陆宇峰; 陆林
Original assignee: Yangzhong Zhongcheng Pipeline Fittings Co ltd
Current assignee: Yangzhong Zhongcheng Pipeline Fittings Co ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-04-14
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses a high leakproofness's quick plug connects, including public head and female head, public head and female head with interlocking and the axial assembly of the relation of throw-off, the runner back end of public head casing inside is the echelonment, the runner back end divide into first hole section, second hole section and third hole section from a left side to the right side in proper order, the diameter of first hole section, second hole section, third hole section reduce in proper order, and link to each other through first inclined plane between first hole section and the second hole section, link to each other through the second inclined plane between second hole section and the third hole section; and when the valve is closed, the auxiliary sealing ring is abutted to the first inclined plane, and the main sealing ring is abutted to the second inclined plane. This device is through the cooperation of two sealing washers of major-minor, can effectually guarantee the sealing capacity of public head department in the quick plug joint.

Description

High-sealing-performance quick plug connector

Technical Field

The utility model relates to a quick plug of high leakproofness connects.

Background

The quick coupling disclosed in the publication number CN108758139A is convenient to use in the current gas-liquid pipeline, but in the long-term use process, when the male part is closed by the valve core, a small amount of gas-liquid still flows away along the gap between the male valve core and the male housing due to the large gas-liquid pressure inside the male part, so as to affect the sealing performance of the male part, especially at the moment of plugging, due to the existence of impact force, the instantaneous pressure at the male part exceeds the set allowable value, so as to cause a small amount of leakage, and the sealing capability of the male part may be reduced for a long time, so as to cause a large amount of gas-liquid leakage at the male part.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of the prior art, and providing a quick plug connector with high sealing performance.

A high-sealing-performance quick plug-pull connector comprises a male head and a female head, wherein the male head and the female head are axially assembled in an interlocking and disengaging relationship, a flow channel rear section in a male head shell is in a step shape and is sequentially divided into a first hole section, a second hole section and a third hole section from left to right, the diameters of the first hole section, the second hole section and the third hole section are sequentially reduced, the first hole section is connected with the second hole section through a first inclined plane, and the second hole section is connected with the third hole section through a second inclined plane; and when the valve is closed, the auxiliary sealing ring is abutted to the first inclined plane, and the main sealing ring is abutted to the second inclined plane.

Preferably, the mouth of the flow channel is tapered.

Preferably, the main seal ring is made of rubber.

Preferably, the auxiliary sealing ring is made of rubber.

Preferably, the male shell is made of hard aluminum alloy or galvanized steel.

Has the advantages that:

through the arrangement of the first inclined plane, the second inclined plane and the matched main sealing ring and auxiliary sealing ring, on one hand, the gas pressure in the male head can be initially reduced through the auxiliary sealing ring, so that the gas pressure at the main sealing ring can not exceed a set allowable value all the time, and the safe sealing at the main sealing ring is ensured; on the other hand, through the establishment of two inclined planes (first inclined plane and second inclined plane), can guarantee that main sealing washer and supplementary sealing washer can both obtain effectual elastic deformation when the valve rod is being pulled right by reset spring to guarantee that the sealing washer can exert effectual sealing capacity.

Drawings

FIG. 1 is a schematic view of a male end of a high-sealing quick connector;

FIG. 2 is a schematic structural diagram of a female head of a high-sealing quick-connect-disconnect coupling;

1. the valve comprises a female head 11, a first valve body 12, a second valve body 13, a female head valve core 131, a first slide block 132, a first valve rod 133, a first return spring 14, a sealing washer 15, a sealing piece 16, a buckling bulge 17, a first protective sleeve 18, a third return spring 19, a first limit clamp spring 2, a male head 21, a male head shell 22, a male head valve core 221, a second slide block 222, a second valve rod 223, a second return spring 23, a notch 24, a second protective sleeve 25, a fourth return spring 26, a second limit clamp spring 27, a main sealing ring 28, an auxiliary sealing ring 29, a first hole section 30, a second hole section 31 and a third hole section.

Detailed Description

In order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.

A quick plug connector comprises a male head 2 and a female head 1, wherein the male head 2 and the female head 1 are axially assembled in an interlocking and disengaging relationship;

the female head 1 comprises a female head shell, a female head valve core 13 capable of moving axially is assembled in a gas channel of the female head shell, the female head shell comprises a first valve body 11 and a second valve body 12, the inner wall of the rear section of the first valve body is in a step shape, the shape of the outer wall of the front section of the second valve body is matched with that of the inner wall of the first valve body, the front section of the second valve body is inserted into the rear section of the first valve body and is in threaded fit connection, a sealing gasket 14 for sealing the first valve body and the second valve body is arranged between the front end face of the second valve body and the inner wall of the first valve body, a sealing groove is formed in the inner wall of the front section of;

the male head 2 comprises a male head shell 21 which is integrally stepped, a male head valve core 22 which can axially move is assembled in a flow passage of the male head shell 21, and the shape of the outer wall of the front end of the male head shell is matched with the shape of the inner wall of the front end of a valve body II in the female head shell; the rear section of the flow channel in the male shell is in a step shape, the rear section of the flow channel is sequentially divided into a first hole section, a second hole section and a third hole section from left to right, the diameters of the first hole section 29, the second hole section 30 and the third hole section 31 are sequentially reduced, the first hole section is connected with the second hole section through a first inclined plane, and the second hole section is connected with the third hole section through a second inclined plane; and a main sealing ring and an auxiliary sealing ring are arranged at the valve rod head of the second valve rod 222 of the male valve core 22 in the flow channel.

When the front end of the male head shell is inserted into the second valve body of the female head, the male head valve core is abutted against the female head valve core and moves in the axial direction in a reverse direction, and at the moment, the gas channel and the flow channel are connected into a through channel.

The female valve core 13 comprises a first sliding block 131 which is arranged in a gas channel of the second valve body and can axially move relative to the gas channel of the second valve body and a first valve rod 132 of which one end is inserted into the first sliding block, a valve rod head at the other end of the first valve rod is circumferentially abutted against the gas channel opening of the second valve body, a first return spring 133 is sleeved on the first valve rod, one end of the first return spring is abutted against the first sliding block, and the other end of the first return spring is abutted against the inner wall of the second valve body;

the male valve core 22 comprises a second slider 221 which is arranged in the gas channel at the front end of the male housing and can move axially relative to the flow channel of the male housing, and a second valve rod 222 of which one end is inserted into the second slider, the valve rod head at the other end of the second valve rod is circumferentially abutted against the flow channel opening in the male housing, when the valve is closed, the auxiliary sealing ring 28 is abutted against the first inclined surface, and the main sealing ring 27 is abutted against the second inclined surface. The main sealing ring and the auxiliary sealing ring are made of rubber.

And a second return spring 223 is sleeved on the second valve rod, one end of the second return spring abuts against the second sliding block, and the other end of the second return spring abuts against the inner wall of the flow channel in the male head shell.

The front end of the second sliding block is provided with a cylindrical bulge, and the diameter of the cylindrical bulge is smaller than that of the second sliding block.

And the gas passage port of the second valve body and the runner port of the male shell are both conical.

And annular grooves are formed in the outer walls of the valve rod heads of the valve rod I and the valve rod II, and sealing rings are arranged in the grooves.

The outer wall of the front end of the male housing is provided with a notch 23, and the front end of the female valve body is provided with a buckle bulge 16 matched with the notch of the male housing.

A first protective sleeve 17 capable of sliding along the axial direction of the first valve body is further sleeved at the front end of the first female valve body, a third return spring 18 is arranged between the rear end face of the first protective sleeve and the first valve body, and a first limiting clamp spring 19 for limiting the sliding range of the first protective sleeve is further arranged on the outer wall of the front end of the first valve body;

a second protective sleeve 24 is sleeved at the front end of the male head shell, a fourth reset spring 25 is arranged between the rear end face of the second protective sleeve and the male head shell, and a second limiting snap spring 26 for limiting the sliding range of the second protective sleeve is further arranged on the outer wall of the front end of the male head shell;

the shape of the outer wall of the front end of the second protective sleeve is matched with the shape of the inner wall of the front end of the first protective sleeve.

The male shell is made of hard aluminum alloy or galvanized steel.

The working state is as follows:

1. initial state:

under the action of the second return spring 223, the male valve core 22 in the male is located at the flow passage opening in the male housing, at this time, the valve rod head closes the flow passage, and the male 2 is in a sealed state.

Under the action of the first return spring 133, the female valve element 13 in the female valve is located at the gas passage port in the female housing, at this time, the valve rod head closes the gas passage, and the female valve 1 is in a sealed state.

2. The connection state is as follows:

1) the male head 2 is connected with the female head 1, at the moment, only the front end of the male head shell is required to be inserted into the second valve body 12 of the female head, and at the moment, the second sliding block 221 in the male head abuts against the first sliding block 131 in the female head. Under the action of the interaction force, the first sliding block 131 and the second sliding block 221 move in an opposite direction; the first sliding block overcomes the spring force of the first return spring 133 and drives the first valve rod 132 to move, and a valve of the female head is opened; the same second slide block 221 in the male head drives the second valve rod 222 to move, and the valve of the male head is opened.

The gas channel and the flow channel are connected into a through channel.

2) When the male head is inserted into the female head, the buckling bulge 16 on the female head is sunk into the notch 23 in the male head; the cooperation of the snap projections 16 and the notches 23 ensures that the male and female heads are always connected.

3) When the male head is inserted into the female head, the first protective sleeve 17 is propped against the second protective sleeve 24 and moves reversely. Meanwhile, the first protective sleeve clamps the buckling bulge 16 to ensure that the buckling bulge 16 is always sunk into the notch 23, and when the first protective sleeve and the second protective sleeve need to be separated, the first protective sleeve 17 only needs to slide along the axis of the female head, so that the buckling bulge 16 can be popped out of the notch 23, and the male head and the female head can be separated very smoothly.

The utility model discloses a first inclined plane, second inclined plane and supporting main sealing washer 27, the establishment of supplementary sealing washer 28, on the one hand can be through the inside gas pressure of supplementary sealing washer 28 preliminary reduction public head earlier to guarantee that the gas pressure of main sealing washer 27 can not exceed the allowed value of settlement all the time, guarantee the safety seal of main sealing washer 27 department; on the other hand, by setting two inclined planes (a first inclined plane and a second inclined plane), it can be ensured that the main seal ring 27 and the auxiliary seal ring 28 can be elastically deformed effectively while the male valve core 22 is pulled rightwards by the second return spring 223, thereby ensuring that the main seal ring 27 can exert effective sealing capability.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-tightness quick plug-pull connector comprises a male head and a female head which are axially assembled in an interlocking and disengaging relationship, and is characterized in that; the rear section of the flow channel in the male shell is in a step shape and is sequentially divided into a first hole section, a second hole section and a third hole section from left to right, the diameters of the first hole section, the second hole section and the third hole section are sequentially reduced, the first hole section is connected with the second hole section through a first inclined plane, and the second hole section is connected with the third hole section through a second inclined plane; and when the valve is closed, the auxiliary sealing ring is abutted to the first inclined plane, and the main sealing ring is abutted to the second inclined plane.

2. The quick connect-disconnect coupling of claim 1, wherein the mouth of the flow channel is tapered.

3. The quick connect-disconnect coupling of claim 1, wherein the primary seal ring is made of rubber.

4. The quick connect-disconnect coupling of claim 1, wherein the auxiliary seal ring is made of rubber.

5. The quick connect-disconnect coupling of a high leakproofness of claim 1, characterized in that, the material of public first casing is stereoplasm aluminum alloy or galvanized steel.