CN217030368U

CN217030368U - Quick connector with bidirectional non-return function

Info

Publication number: CN217030368U
Application number: CN202220124495.9U
Authority: CN
Inventors: 顾强; 王继涛
Original assignee: Mifu Technology Zhejiang Co ltd
Current assignee: Mifu Technology Zhejiang Co ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-07-22
Anticipated expiration: 2032-01-18

Abstract

The utility model discloses a quick connector with a bidirectional non-return function, which has the technical scheme main points that: the utility model provides a quick connector with two-way non return function, including quick connector, be provided with two-way non return mechanism between quick connector and the quick connector, two-way non return mechanism is including establishing sliding connection in the first shutoff piece of quick connector inner chamber, locate the first elastic component of quick connector inner chamber and drive first shutoff piece towards quick connector direction removal, sliding connection is in the second shutoff piece of quick connector inner chamber, locate quick connector and drive the second elastic component of second shutoff piece towards quick connector direction removal, locate the second shutoff piece and can insert the ejector pin that pushes away first shutoff piece behind the quick connector. The quick-plugging plug has a bidirectional non-return function while realizing a quick-plugging function, avoids liquid in a pipeline connected with the quick-plugging plug and the quick-plugging plug from flowing out during plugging, and improves the use convenience and reliability.

Description

Quick connector with bidirectional non-return function

Technical Field

The utility model relates to the field of vehicle pipeline systems, in particular to a quick connector with a bidirectional non-return function.

Background

At present, quick plug-in connector assemblies are widely used on vehicle pipeline systems. The quick connector assembly generally includes a quick connector and a quick connector plug. When the quick plug is used, the quick plug is inserted into the quick plug, and the buckle is fixed through the corresponding buckle structure, so that the quick plug function is realized.

However, in the existing quick-plug structure, because liquid exists in the pipeline, when the quick-plug connector is separated from the quick-plug connector, the liquid in the pipeline flows out from the quick-plug connector and the quick-plug connector. In addition, the existing non-return structure is difficult to realize the non-return function of the quick plug and the quick plug at the same time, and the non-return effect cannot be realized through the plug function.

Therefore, there is a need for an improved structure that overcomes the above-mentioned deficiencies.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a quick connector with a bidirectional non-return function, which realizes the quick insertion function, has the bidirectional non-return function, avoids liquid in a pipeline connected with the quick connector and a quick plug from flowing out during insertion and extraction, and improves the use convenience and reliability.

The technical purpose of the utility model is realized by the following technical scheme: a quick connector with a bidirectional non-return function comprises a quick connector and a quick connector, wherein a bidirectional non-return mechanism is arranged between the quick connector and the quick connector, the bidirectional non-return mechanism comprises a first plugging block which is connected with the inner cavity of the quick-plug in a sliding way, a first elastic piece which is arranged in the inner cavity of the quick-plug and drives the first plugging block to move towards the direction of the quick-plug, a second plugging block which is connected with the inner cavity of the quick-plug in a sliding way, a second elastic piece which is arranged in the quick-plug and drives the second plugging block to move towards the direction of the quick-plug, and an ejector rod which is arranged in the second plugging block and can push the first plugging block after the quick-plug is inserted, when the quick plug is separated from the quick plug, the first elastic piece drives the first plugging block to move towards the direction of the quick plug so as to plug the quick plug, the second elastic piece drives the first plugging block to move towards the direction of the quick-plug and then can plug the quick-plug.

The utility model is further provided with: the quick-plug connector is characterized in that an installing head connected with a pipeline is arranged at one end, deviating from the quick-plug connector, of the quick-plug connector, a movable cavity for accommodating the first blocking block is arranged at the connecting end of the installing head and the quick-plug connector, a blocking part is arranged at one end, facing the quick-plug connector, of the first blocking block, the blocking part is provided with a first sealing ring, and a convex ring for abutting against the blocking part and the first sealing ring is arranged on the inner wall of the quick-plug connector.

The utility model is further provided with: the inner wall of the mounting head is fixedly connected with a limiting stop lever for the first elastic piece to deviate from one end of the first plugging block to abut against.

The utility model is further provided with: the first plugging block is provided with a butt groove for accommodating and supporting a first elastic piece in butt joint, the side wall of the butt groove is provided with a plurality of hollow grooves, and the side wall of the first plugging block is provided with a plurality of guide plates for guiding the moving direction of the first plugging block.

The utility model is further configured as follows: the quick connector inner chamber is provided with solid fixed ring, gu fixed ring with be provided with the second sealing washer between the quick connector inner wall, the second shutoff piece is provided with the third sealing washer that can the butt in solid fixed ring, gu fixed ring deviates from quick connector plug one end and supplies second shutoff piece and third sealing washer butt and realize sealing.

The utility model is further configured as follows: the second elastic component is a spring, the second elastic component is located in an inner cavity of the fixing ring, the second elastic component is close to one end of the second blocking block and is installed in the fixing ring, the ejector rod is fixed with a butting portion used for fixing the other end of the second elastic component, the ejector rod is abutted to push the first blocking block to move for a certain distance, and the quick plug end portion can be abutted to the butting portion.

The utility model is further provided with: the spout that is used for the direction of butt joint portion is seted up to solid fixed ring inner wall, butt joint portion sliding connection in the spout, just the terminal surface that the ejector pin was kept away from to the butt joint portion is provided with the inclined plane that makes things convenient for butt joint portion to be blocked to the spout by solid fixed ring inner chamber.

The utility model is further provided with: the abutting part and the sliding groove are all arranged to be evenly distributed around the ejector rod.

The utility model is further provided with: the abutting part is provided with a clamping groove for clamping the end part of the second elastic part.

The utility model is further provided with: the quick connector inner wall is provided with a mounting groove for mounting the fixing ring, the fixing ring is abutted against the bottom surface of the mounting groove and limits the position of the fixing ring, and the fixing ring is positioned between the side wall of the mounting groove and the side wall of the fixing ring.

In conclusion, the utility model has the following beneficial effects:

when the quick-inserting plug is separated from the quick-inserting plug, the first elastic piece drives the first blocking block to move towards the direction of the quick-inserting plug and then block the quick-inserting plug, the second elastic piece drives the first blocking block to move towards the direction of the quick-inserting plug and then block the quick-inserting plug, when the quick-inserting plug is inserted into the quick-inserting plug, the ejector rod stretches into the inner cavity of the quick-inserting plug and can push the first blocking block, the ejector rod pushes the first blocking block to move away from the direction of the quick-inserting plug for a certain distance and then releases the function of blocking the quick-inserting plug by the first blocking block, and meanwhile, after the ejector rod and the second blocking block are subjected to acting force, the ejector rod and the second blocking block move relative to the quick-inserting plug, so that the function of blocking the quick-inserting plug by the second blocking block is released, and liquid circulation between the quick-inserting plug and the quick-inserting plug is achieved.

Before the mounting head is fixed to the quick-connection connector, a first blocking block and a first elastic piece are arranged in a movable cavity in advance, the outer diameter of the first blocking block is smaller than that of the movable cavity, when the ejector rod pushes the first blocking block, the first elastic piece is in a compressed state, and the convex ring is separated from the blocking head part, so that liquid at two side positions of the first blocking piece can flow, when the ejector rod does not abut against the first blocking block, the first elastic piece pushes the first blocking block, the blocking head part and the first sealing ring abut against the convex ring, and the sealing effect is achieved; in addition, the liquid can conveniently circulate in the mounting head through the limiting stop rod, and the structure is compact and the whole weight is reduced.

Through the solid fixed ring direction removal of second elastic component drive second shutoff piece orientation to reach second shutoff piece and third sealing washer butt solid fixed ring terminal surface after, effectively sealed quick connector, when the ejector pin top pushes away first shutoff piece, ejector pin and second shutoff piece remove for quick connector, the separation of third sealing washer, thereby supply the interior liquid circulation of quick connector.

One end of the second elastic piece is fixed on the inner wall of the fixing ring, the other end of the second elastic piece is fixed in the clamping groove, and part of the second elastic piece is sleeved in the clamping groove, so that the position of the second elastic piece is fixed, and when the ejector rod is free from external force, the second elastic piece drives the ejector rod and the second plugging block to move towards the direction of the quick-plug, and a sealing function is realized; in addition, after the ejector rod pushes the first blocking block and enables the first blocking block and/or the second blocking block to be away from each other by a certain distance, the end part of the quick plug can be abutted against the abutting part, the first elastic piece and the second elastic piece are guaranteed to be in a compression state, and liquid circulation between the quick plug and the quick plug is achieved.

The push rod and the second plugging block are prevented from rotating, and the second plugging block can be limited to a certain distance by the length of the sliding groove; and when assembling ejector pin, butt portion in solid fixed ring, contradict in solid fixed ring inner wall through the inclined plane, realize butt portion elastic deformation and make things convenient for butt portion to remove and block into to the spout position, reach convenient equipment effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of part A of FIG. 2

FIG. 4 is a schematic view of a second block, ram, of the present invention;

fig. 5 is a schematic view of a first block of the present invention.

Names of the corresponding components indicated by the numbers in the drawings: 1. quickly inserting a plug; 2. a quick connector; 3. a first plugging block; 4. a first elastic member; 5. a second plugging block; 6. a second elastic member; 7. a top rod; 8. a mounting head; 9. a movable cavity; 10. plugging the head; 11. a first seal ring; 12. a convex ring; 13. a limiting stop lever; 14. a butt joint groove; 15. hollowing out the grooves; 16. a guide plate; 17. a fixing ring; 18. mounting grooves; 19. an abutting portion; 20. a second seal ring; 21. a third seal ring; 22. a card slot; 23. a chute; 24. an inclined surface.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained by combining the drawings and the specific embodiments.

As shown in fig. 1 to 5, the quick connector with a bidirectional non-return function provided by the present invention includes a quick connector 1 and a quick connector 2, wherein the quick connector 1 can be inserted into the quick connector 2. The quick plug is characterized in that a bidirectional check mechanism is arranged between the quick plug 1 and the quick plug 2, the bidirectional check mechanism comprises a first blocking block 3 which is arranged in an inner cavity of the quick plug 1 in a sliding manner, a first elastic piece 4 which is arranged in the inner cavity of the quick plug 1 and drives the first blocking block 3 to move towards the direction of the quick plug 2, a second blocking block 5 which is arranged in the inner cavity of the quick plug 2 in a sliding manner, a second elastic piece 6 which is arranged in the quick plug 2 and drives the second blocking block 5 to move towards the direction of the quick plug 1, and an ejector rod 7 which is arranged in the second blocking block 5 and can push the first blocking block 3 after the quick plug 1 is inserted, wherein the first elastic piece 4 and the second elastic piece 6 are springs.

When the quick-plug 1 is separated from the quick-plug connector 2, the first elastic piece 4 drives the first blocking block 3 to move towards the direction of the quick-plug connector 2 so as to block the quick-plug 1, the second elastic piece 6 drives the first plugging block 3 to move towards the direction of the quick-plug 1 so as to plug the quick-plug 2, when the quick plug 1 is inserted into the quick plug 2, the mandril 7 extends into the inner cavity of the quick plug 1 and can push the first plugging block 3, the mandril 7 pushes the first plugging block 3 to move a certain distance away from the direction of the quick plug 2, then the function of plugging the quick plug 1 by the first plugging block 3 is released, meanwhile, after the ejector rod 7 and the second plugging block 5 are acted by an acting force, the ejector rod 7 and the second plugging block 5 move relative to the quick-plug connector 2, so that the function of removing the second plugging block 5 from plugging the quick-plug connector 2 is achieved, and the liquid circulation between the quick-plug connector 2 and the quick-plug connector 1 is achieved.

The quick plug 1 is characterized in that an installing head 8 connected with a pipeline is arranged at one end, deviating from the quick plug 2, of the quick plug 1, the installing head 8 is welded and fixed with the quick plug 2, a movable cavity 9 for accommodating the first blocking block 3 is arranged at the position of the connecting end of the installing head 8 and the quick plug 1, the movable cavity 9 is communicated with the quick plug 1 and a channel of the installing head 8, a blocking head part 10 is arranged at one end, facing the quick plug 2, of the first blocking block 3, a first sealing ring 11 is fixed on the blocking head part 10, and a convex ring 12 for abutting against the blocking head part 10 and the first sealing ring 11 is arranged on the inner wall of the quick plug 1. The inner wall of the mounting head 8 is fixedly connected with a limiting blocking rod 13 for supporting the first elastic piece 4 to deviate from one end of the first plugging block 3, and the limiting blocking rod 13 is Y-shaped and is flush with the end face of the movable cavity 9. First shutoff piece 3 sets up the confession and holds and supply the butt groove 14 of the first end butt of first elastic component 4, a plurality of fretwork grooves 15 have been seted up to butt groove 14 lateral wall, and butt groove 14 realizes and communicates with the 3 outsides of first shutoff piece, conveniently supplies the liquid circulation, 3 lateral walls of first shutoff piece are provided with a plurality of deflectors 16 that are used for leading 3 moving direction of first shutoff piece, and deflector 16 can laminate and slide in the 9 lateral walls in activity chamber, realizes leading 3 moving direction of first shutoff piece through deflector 16. Before the mounting head 8 is fixed on the quick-plugging connector 2, the first plugging block 3 and the first elastic piece 4 are arranged in the movable cavity 9 in advance, the outer diameter of the first plugging block 3 is smaller than that of the movable cavity 9, when the ejector rod 7 pushes the first plugging block 3, the first elastic piece 4 is in a compressed state, and the convex ring 12 is separated from the plug part 10, so that liquid at two side positions of the first plugging piece can flow, when the ejector rod 7 is not abutted to the first plugging block 3, the first elastic piece 4 pushes the first plugging block 3, so that the plug part 10 and the first sealing ring 11 are abutted to the convex ring 12, and a sealing effect is realized; in addition, the limiting stop rod 13 is convenient for liquid to circulate in the mounting head 8, and the structure is compact and the whole weight is reduced.

The inner cavity of the quick-connection plug 2 is provided with a fixing ring 17, the inner wall of the quick-connection plug 2 is provided with a mounting groove 18 for the fixing ring 17 to be mounted, namely, the diameter of the mounting groove 18 is larger than the aperture of a channel in the quick-connection plug 2, the fixing ring 17 abuts against the bottom surface of the mounting groove 18 and limits the position of the fixing ring 17, the side wall of the fixing ring 17 is provided with a second sealing ring 20, and the second sealing ring 20 is located between the side walls of the fixing ring 17 and the side wall of the mounting groove 18 to realize sealing effect. Second shutoff piece 5 is provided with can the butt in the third sealing washer 21 of solid fixed ring 17 terminal surface, gu fixed ring 17 deviates from 1 one end of quick plug and supplies second shutoff piece 5 and the butt of third sealing washer 21 and realize sealing. Through the second elastic component 6 drive second shutoff piece 5 towards solid fixed ring 17 direction removal to reach behind second shutoff piece 5 and the solid fixed ring 17 terminal surface of third sealing washer 21 butt, effectively sealed quick connector 2, when ejector pin 7 pushes away first shutoff piece 3, ejector pin 7 and second shutoff piece 5 remove for quick connector 2, third sealing washer 21 separation, thereby supply the interior liquid circulation of quick connector 2.

Second elastic component 6 is located solid fixed ring 17 inner chamber, just second elastic component 6 is close to and installs in solid fixed ring 17 in 5 one end of second block piece, ejector pin 7 is fixed with and is used for fixing the butt portion 19 of the 6 other ends of second elastic component to butt portion 19 sets up to two in this embodiment, and two butt portion 19 symmetries set up in ejector pin 7, and butt portion 19 sets up the draw-in groove 22 that supplies 6 tip cards of second elastic component to go into. After the ejector rod 7 abuts against and pushes the first blocking block 3 to move for a certain distance, the end part of the quick plug 1 can abut against the abutting part 19. In this embodiment, one end of the second elastic member 6 is fixed on the inner wall of the fixing ring 17, the other end of the second elastic member is fixed in the clamping groove 22, and part of the second elastic member 6 is sleeved in the clamping groove 22, so as to fix the position of the second elastic member 6, and when the ejector rod 7 is not subjected to an external force, the second elastic member 6 drives the ejector rod 7 and the second blocking block 5 to move towards the quick-plug 1, so as to realize a sealing function; in addition, after the ejector rod 7 pushes the first blocking block 3 and enables the first blocking block 3 and/or the second blocking block 5 to have a certain distance, the end part of the quick plug 1 can be abutted to the abutting part 19, and the first elastic part 4 and the second elastic part 6 are ensured to be in a compressed state, so that liquid circulation between the quick plug 1 and the quick plug 2 is achieved.

The inner wall of the fixing ring 17 is provided with a sliding groove 23 for guiding the abutting part 19, the abutting part 19 is slidably connected to the sliding groove 23, and the end face, away from the mandril 7, of the abutting part 19 is provided with an inclined plane 24 which is convenient for the abutting part 19 to be clamped into the sliding groove 23 through the inner cavity of the fixing ring 17. The abutting part 19 is connected with the sliding groove 23 in a sliding manner, so that the guide effect on the ejector rod 7 and the second blocking block 5 is achieved, the ejector rod 7 and the second blocking block 5 are prevented from rotating, and the second blocking block 5 can be limited to a certain distance by the length of the sliding groove 23; and when assembling ejector pin 7, butt portion 19 in solid fixed ring 17, contradict in solid fixed ring 17 inner wall through inclined plane 24, realize butt portion 19 elastic deformation and make things convenient for butt portion 19 to remove and block in 23 positions of spout, reach and make things convenient for the equipment effect.

In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for the purpose of clarity and convenience of description of the technical solution, and thus, should not be construed as limiting the present invention.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

The foregoing shows and describes the general principles, principal features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a quick connector with two-way non return function, includes quick connector (1), quick connector (2), its characterized in that: be provided with two-way non return mechanism between quick connector (1) and quick connector (2), two-way non return mechanism including sliding connection in first shutoff piece (3) of quick connector (1) inner chamber, set up in quick connector (1) inner chamber and drive first shutoff piece (3) towards first elastic component (4) that quick connector (2) direction removed, sliding connection in second shutoff piece (5) of quick connector (2) inner chamber, set up in quick connector (2) and drive second shutoff piece (5) towards second elastic component (6) that quick connector (1) direction removed, set up in second shutoff piece (5) and can insert behind quick connector (1) push up ejector pin (7) that push up first shutoff piece (3), when quick connector (1) and quick connector (2) separate, first elastic component (4) drive first shutoff piece (3) towards behind quick connector (2) direction removal can the shutoff piece (3), first elastic component (4) drive first shutoff piece (3) The plug (1), second elastic component (6) drive first shutoff piece (3) can shutoff fast bayonet joint (2) after moving towards fast bayonet plug (1) direction.

2. The quick connector with the two-way check function as claimed in claim 1, wherein: the quick plug (1) deviates from one end of the quick plug (2) is provided with an installing head (8) connected with a pipeline, the installing head (8) is provided with a movable cavity (9) for accommodating the first blocking block (3) at the connecting end position of the quick plug (1), the first blocking block (3) is provided with a blocking head part (10) towards one end of the quick plug (2), the blocking head part (10) is provided with a first sealing ring (11), and the inner wall of the quick plug (1) is integrally formed with a convex ring (12) for abutting against the blocking head part (10) and the first sealing ring (11).

3. The quick connector with the two-way check function according to claim 2, characterized in that: the inner wall of the mounting head (8) is fixedly connected with a limiting stop lever (13) for the first elastic piece (4) to deviate from one end of the first plugging block (3) to abut against.

4. The quick connector with the two-way check function as claimed in claim 2, wherein: first shutoff piece (3) are seted up and are supplied to hold and supply butt groove (14) of first elastic component (4) butt, a plurality of fretwork grooves (15) have been seted up to butt groove (14) lateral wall, first shutoff piece (3) lateral wall is provided with a plurality of deflector (16) that are used for leading first shutoff piece (3) moving direction.

5. The quick connector with the two-way check function as claimed in claim 1, wherein: the inner cavity of the quick-plugging connector (2) is provided with a fixing ring (17), a second sealing ring (20) is arranged between the fixing ring (17) and the inner wall of the quick-plugging connector (2), the second sealing block (5) is provided with a third sealing ring (21) which can be abutted against the fixing ring (17), and one end of the quick-plugging connector (1) deviated from the fixing ring (17) is abutted against the second sealing block (5) and the third sealing ring (21) and is sealed.

6. The quick connector with the two-way check function according to claim 5, characterized in that: second elastic component (6) are the spring, second elastic component (6) are located solid fixed ring (17) inner chamber, just second elastic component (6) are close to and install in solid fixed ring (17) in second shutoff piece (5) one end, ejector pin (7) are fixed with and are used for fixing butt portion (19) of second elastic component (6) other end, ejector pin (7) butt promotes first shutoff piece (3) and removes after the certain distance, plug (1) tip can the butt soon butt portion (19).

7. The quick connector with the two-way check function as claimed in claim 6, wherein: fixed ring (17) inner wall offer be used for to butt joint portion (19) guide spout (23), butt joint portion (19) sliding connection in spout (23), just butt joint portion (19) keep away from the terminal surface of ejector pin (7) and be provided with and make things convenient for butt joint portion (19) to be gone into inclined plane (24) to spout (23) by fixed ring (17) inner chamber card.

8. The quick connector with the two-way check function as claimed in claim 7, wherein: the abutting part (19) and the sliding groove (23) are all arranged to be uniformly distributed on the plurality of surrounding ejector rods (7).

9. The quick connector with two-way check function according to claim 6, characterized in that: the abutting part (19) is provided with a clamping groove (22) for clamping the end part of the second elastic part (6).

10. The quick connector with the two-way check function as claimed in claim 5, wherein: the quick connector (2) inner wall is provided with a mounting groove (18) for mounting the fixing ring (17), the fixing ring (17) abuts against the bottom surface of the mounting groove (18) and limits the position of the fixing ring (17), and the fixing ring (17) is located between the side wall of the fixing ring (17) and the side wall of the mounting groove (18).