CN110296290B

CN110296290B - Quick connector

Info

Publication number: CN110296290B
Application number: CN201910397210.1A
Authority: CN
Inventors: 何国正
Original assignee: Yuhuan Guoda Valve Co ltd
Current assignee: Yuhuan Guoda Valve Co ltd
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-10-16
Anticipated expiration: 2039-05-14
Also published as: CN110296290A

Abstract

The invention discloses a quick connector, and relates to the field of valves. The valve comprises a valve body, a connecting pipe and a valve cover, wherein the outer wall of the valve body is connected with a sliding sleeve in a sliding mode, a flange is arranged in the middle of the sliding sleeve, the lower end of the sliding sleeve is bent inwards to form a folded edge, and a spring positioned between the folded edge and the flange is sleeved on the outer wall of the connecting pipe; the inner wall of the lower end of the folded edge is provided with a guide rod, and the outer wall of the lower end of the connecting pipe is provided with a guide groove; a limiting hole penetrates through the side wall of the connecting pipe, a limiting block is arranged in the limiting hole, the lower end of the limiting block is bent outwards, and a limiting groove for embedding the lower end of the limiting block is formed in the inner wall of the lower end of the folded edge; the upper end of the limiting block is hinged to the inner wall of the limiting hole, and the inner wall of the lower end of the limiting block is horizontally provided with a clamping block in a long strip shape. The invention has the following advantages and effects: through setting up plug-type sliding sleeve, realize the on-off control to stopper and fixture block to realize the fixing of water pipe and remove, consequently make the installation of water pipe and dismantle process convenient and fast more, reached the effect of making things convenient for the dismouting water pipe.

Description

Quick connector

Technical Field

The invention relates to the field of valves, in particular to a quick connector.

Background

The quick connector is a connector capable of realizing connection or disconnection of pipelines without tools, and is an accessory device of related machines of pneumatic pressure, hydraulic tools, air cylinders, hydraulic cylinders and metal molds.

Chinese patent CN104500894B discloses a quick coupling, which comprises a valve body, wherein the valve body is provided with an access end for inserting a pipe body, and the access end is provided with a sealing ring, a wedging sleeve assembly, a wedging cap and a sealing cap; a locking mechanism is arranged between the wedging sleeve assembly and the wedging cap, the wedging sleeve assembly is positioned in the threaded base, the wedging cap is sleeved on the threaded base, and the wedging sleeve assembly is driven to move axially through the locking mechanism; the wedging sleeve assembly is internally provided with at least one clamp spring, the wedging sleeve assembly moves axially, and the clamp teeth of the clamp spring are spread or reset; the sealing cap is in threaded connection with the threaded base, and fixedly seals the sealing ring, the wedging sleeve assembly and the wedging cap.

Above-mentioned quick-operation joint need rotatory wedging cap when using, just can realize the dismantlement and the installation of water pipe, consequently makes the dismouting process of water pipe very inconvenient, awaits the improvement.

Disclosure of Invention

The invention aims to provide a quick connector which has the effect of facilitating the disassembly and assembly of a water pipe.

The technical purpose of the invention is realized by the following technical scheme: a quick connector comprises a valve body, a connecting pipe arranged on the valve body and a valve cover buckled on the upper end face of the valve body, wherein the outer wall of the valve body is connected with a sliding sleeve in a sliding mode, a circle of flange is arranged on the side wall of the middle of the valve body, the lower end of the sliding sleeve is inwards bent and provided with a hem abutting against the outer wall of the connecting pipe, a spring is sleeved on the outer wall of the connecting pipe, and the spring is located between the hem and the flange; a plurality of guide rods are vertically arranged on the inner wall of the lower end of the folded edge, the guide rods are uniformly distributed along the circumferential direction of the folded edge, and a guide groove for the guide rods to slide is formed in the outer wall of the lower end of the connecting pipe; the side wall of the connecting pipe is provided with a plurality of strip-shaped limiting holes in a penetrating manner, the limiting holes are uniformly distributed along the circumferential direction of the connecting pipe, limiting blocks are arranged in the limiting holes, the lower ends of the limiting blocks are bent outwards, and the inner wall of the lower end of the folded edge is provided with a limiting groove for embedding the lower ends of the limiting blocks; the upper end of the limiting block is hinged to the inner wall of the upper end of the limiting hole, and a clamping block in a long strip shape is horizontally arranged on the inner wall of the lower end of one side, close to the limiting block, of the limiting block.

Through adopting above-mentioned technical scheme, when the installation water pipe, the drive sliding sleeve upward movement, the hem on the sliding sleeve this moment is pressed the compression of dynamic spring, and the lower extreme of sliding sleeve breaks away from the lower extreme outer wall of stopper gradually simultaneously. Then the water pipe is inserted in the connecting pipe until the outer wall of the connecting pipe abuts against the clamping block on the inner wall of the limiting block, and the limiting block is driven by the water pipe to turn outwards along the hinged part. And finally, loosening the sliding sleeve, bouncing the spring to open and driving the sliding sleeve to move downwards at the moment, wherein the bottom wall of the limiting groove is gradually abutted against the outer wall of the limiting block at the moment, and the limiting block is pressed to reversely overturn and drives the clamping block to move synchronously and be gradually embedded into the clamping groove in the outer wall of the water pipe. And after the guide rod on the sliding sleeve abuts against the lower end inner wall of the guide groove, the sliding sleeve stops moving, and the lower end outer wall of the limiting block abuts against the bottom wall of the limiting groove at the moment. And the clamping block is completely embedded into the clamping groove on the outer wall of the water pipe at the same time, so that the limiting of the axial direction of the water pipe is realized, and the installation of the water pipe is completed. When dismantling the water pipe, the drive sliding sleeve upward movement once more, when the spacing groove breaks away from the lower extreme outer wall of stopper, the stopper can outwards overturn along articulated department, can stimulate the water pipe downstream this moment, when the water pipe breaks away from the takeover inner wall, can realize the dismantlement of water pipe. Consequently, through setting up plug-type sliding sleeve, realize the on-off control to stopper and fixture block to realize the fixing and the relieving of water pipe, consequently make the installation of water pipe and dismantle process convenient and fast more, reached the effect of making things convenient for the dismouting water pipe.

The invention is further provided with: and an arc-shaped guide block is arranged between the lower end surface of the clamping block and the inner wall of the limiting block.

Through adopting above-mentioned technical scheme, through setting up circular-arc guide block, when the water pipe contradicts the guide block, the water pipe can be lighter drive stopper upset, has improved the reaction rate of stopper, consequently makes the grafting process of water pipe faster.

The invention is further provided with: and the inner wall of the lower end of the connecting pipe is provided with an arc-shaped guide surface.

Through adopting above-mentioned technical scheme, through setting up the spigot surface for the process of water pipe grafting takeover is lighter convenient.

The invention is further provided with: the connecting pipe comprises a pipe body and a plurality of elastic pieces arranged on the upper end surface of the pipe body, the elastic pieces are uniformly distributed along the circumferential direction of the pipe body, and the outer walls of the upper ends of the elastic pieces are provided with clamping hooks; the flange and the valve body are provided with through holes for the hooks to penetrate through, and the inner wall of the upper end of the valve body is provided with a convex ring for the hooks to hook tightly.

By adopting the technical scheme, when the connecting pipe is damaged, the valve cover is taken down, and the clamping hook and the elastic sheet are pressed to be close to each other. When the hook is completely separated from the upper end surface of the convex ring, the pipe body can be pulled to move downwards, the pipe body drives the elastic sheet and the hook to move synchronously, and the elastic sheet and the hook move downwards along the inner wall of the through hole. The whole connecting pipe can be disassembled until the elastic sheet and the clamping hook are completely separated from the through hole. Then after taking out the new connecting pipe, after inserting the elastic sheet and the clamping hook into the through hole, the driving pipe body drives the elastic sheet and the clamping hook to move upwards until the clamping hook is flicked and the upper end face of the convex ring is tightly hooked, and then the installation and fixation of the whole connecting pipe can be realized. Therefore, the connecting pipe which can be disassembled and is convenient to disassemble is arranged, so that the maintenance and replacement processes of the connecting pipe are easier and more convenient.

The invention is further provided with: the upper end of the valve body is provided with a circle of locking groove communicated with the through hole, and a locking ring abutting against the inner wall of the elastic sheet is embedded in the locking groove.

By adopting the technical scheme, the locking ring is arranged to abut against the inner wall of the elastic sheet, so that the elastic sheet and the clamping hook are prevented from being separated from the convex ring during working, the stability of the connecting pipe during use is improved, and the use stability of the whole quick coupling is improved.

The invention is further provided with: the lower end face of the valve cover is provided with a plurality of pressing blocks used for pressing the locking ring.

Through adopting above-mentioned technical scheme, compress tightly fixedly with the locking ring through setting up the compact heap, increased the stability and the fastening degree of locking ring, further improved the stability in use of takeover simultaneously.

The invention is further provided with: therefore, a plurality of stop blocks used for abutting against the lower end face of the valve body are horizontally arranged on the inner wall of the upper end of the pipe body.

Through adopting above-mentioned technical scheme, through setting up the biggest movement distance of dog restriction body, consequently when the lower terminal surface of dog conflict valve body, the pothook aims at the surface of bulge loop just to the surface of the tight bulge loop of bullet hook is opened, thereby makes the installation of takeover light convenient more.

The invention is further provided with: and a circle of anti-slip ring is arranged on the outer wall of the upper end of the sliding sleeve.

Through adopting above-mentioned technical scheme, through setting up the anti-skidding ring and touch finger portion, the phenomenon of skidding appears in the in-process of avoiding promoting the sliding sleeve up-and-down motion to make the process of drive sliding sleeve motion light laborsaving more.

The invention is further provided with: the outer wall of sliding sleeve is vertical to be provided with a plurality of anti-skidding arriss, anti-skidding arris equipartition in the outer wall of sliding sleeve.

Through adopting above-mentioned technical scheme, increase the frictional force on finger portion and sliding sleeve surface through setting up anti-skidding arris, further avoid appearing the phenomenon of skidding to make the process of drive sliding sleeve up-and-down motion light more convenient.

In conclusion, the invention has the following beneficial effects:

1. the sliding sleeve is arranged, so that the opening and closing control of the limiting block and the clamping block is realized, and the fixing and the releasing of the water pipe are realized, so that the installation and the dismounting processes of the water pipe are more convenient and faster, and the effect of conveniently dismounting the water pipe is achieved;

2. by arranging the guide surface and the guide block, the opening and closing control process of the limiting block is easier, and meanwhile, the inserting process of the water pipe is quicker;

3. the detachable and convenient-to-detach connecting pipe is arranged, so that the maintenance and replacement process of the connecting pipe is easier and more convenient;

4. the use stability of the whole quick connector is improved by arranging the high-stability connecting pipe;

5. through the sliding sleeve with the high anti-skidding effect, the phenomenon of skidding of the finger part is avoided, so that the process of driving the sliding sleeve to move is easier and more labor-saving.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is a schematic diagram of the connection relationship of the embodiment;

FIG. 3 is a schematic structural view of the sliding sleeve of the embodiment.

Reference numerals: 1. a valve body; 11. a flange; 12. a through hole; 13. a convex ring; 14. a locking groove; 15. a locking ring; 2. taking over a pipe; 21. a guide surface; 22. a spring; 23. a guide groove; 24. a pipe body; 25. an elastic sheet; 26. a hook; 27. a stopper; 3. a valve cover; 31. a compression block; 4. a sliding sleeve; 41. an anti-slip ring; 42. anti-slip edges; 43. folding edges; 44. a guide bar; 45. a limiting groove; 5. a limiting hole; 51. a limiting block; 52. a clamping block; 53. and a guide block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, a quick coupling includes a valve body 1, a connection pipe 2 disposed at a lower end of the valve body 1, and a valve cover 3 fastened to an upper end surface of the valve body 1, wherein an arc-shaped guide surface 21 is disposed on an inner wall of a lower end of the connection pipe 2.

As shown in fig. 1 and 2, the outer wall of the valve body 1 is slidably connected with a sliding sleeve 4, the outer wall of the upper end of the sliding sleeve 4 is provided with a circle of anti-slip rings 41, the outer wall of the lower end is vertically provided with a plurality of anti-slip ribs 42, and the plurality of anti-slip ribs 42 are uniformly distributed on the outer wall of the sliding sleeve 4.

As shown in fig. 2 and 3, a circle of flange 11 is arranged on the side wall of the middle part of the valve body 1, a folded edge 43 is arranged at the lower end of the sliding sleeve 4 in an inward bending manner, and the inner wall of the folded edge 43 is abutted against the outer wall of the connecting pipe 2. The outer wall of the adapter 2 is also sleeved with a spring 22, and the spring 22 is positioned between the flange 43 and the flange 11.

As shown in fig. 2 and 3, a plurality of guide bars 44 are vertically arranged on the inner wall of the lower end of the folded edge 43, the guide bars 44 are uniformly distributed along the circumferential direction of the folded edge 43, and the outer wall of the lower end of the adapter tube 2 is provided with a guide groove 23 for the guide bars 44 to slide.

As shown in fig. 2 and 3, a plurality of elongated limiting holes 5 are formed through the side wall of the adapter tube 2, and the plurality of limiting holes 5 are uniformly distributed along the circumferential direction of the adapter tube 2. A limiting block 51 is arranged in the limiting hole 5, the lower end of the limiting block 51 is bent outwards, and a limiting groove 45 for embedding the lower end of the limiting block 51 is formed in the inner wall of the lower end of the folded edge 43.

As shown in fig. 2, the upper end of the limiting block 51 is hinged to the inner wall of the upper end of the limiting hole 5, the inner wall of the lower end of one side, close to each other, of the limiting block 51 is horizontally provided with a strip-shaped fixture block 52, the fixture block 52 is embedded into a clamping groove in the outer wall of the water pipe, and an arc-shaped guide block 53 is further arranged between the lower end face of the fixture block 52 and the inner wall of the limiting block 51.

When the water pipe is installed, the sliding sleeve 4 moves upwards, the folding edge 43 on the sliding sleeve 4 gradually presses the spring 22 to compress, and meanwhile, the lower end of the sliding sleeve 4 gradually breaks away from the outer wall of the lower end of the limiting block 51. Then peg graft the water pipe in takeover 2, until the outer wall of takeover 2 contradict the guide block 53 of stopper 51 inner wall after, water pipe drive guide block 53 keeps away from the water pipe outer wall, and guide block 53 drives stopper 51 and outwards overturns along articulated department this moment.

Until the up end of water pipe contradict behind the lower terminal surface of valve body 1, loosen sliding sleeve 4 again, spring 22 bounces and drives sliding sleeve 4 downstream this moment, and the diapire of spacing groove 45 contradicts the outer wall of stopper 51 gradually this moment to press stopper 51 and overturn along articulated department is reverse. Meanwhile, the limiting block 51 drives the clamping block 52 to move synchronously and is gradually embedded into the clamping groove on the outer wall of the water pipe.

When the sliding sleeve 4 moves downwards, the sliding sleeve 4 drives the guide rod 44 to move downwards along the inner wall of the guide groove 23, until the guide rod 44 abuts against the inner wall of the lower end of the guide groove 23, the sliding sleeve 4 stops moving, and the outer wall of the lower end of the limiting block 51 abuts against the bottom wall of the limiting groove 45 at the moment. Simultaneously with from, in the fixture block 52 imbeds the draw-in groove of water pipe outer wall completely to realize water pipe axial direction's spacing, accomplish the installation of water pipe promptly.

When the water pipe is disassembled, the sliding sleeve 4 is driven to move upwards, and the bottom wall of the limiting groove 45 is separated from the outer wall of the lower end of the limiting block 51 at the moment, so that the limiting block 51 can be turned outwards along the hinged part. At this time, the water pipe is pulled to move downwards, and simultaneously the water pipe drives the limiting block 51 to turn outwards along the hinged part. And the water pipe can be detached until the water pipe is completely separated from the inner wall of the connecting pipe 2.

As shown in fig. 2, the adapter tube 2 includes a tube body 24 and a plurality of elastic pieces 25 disposed on the upper end surface of the tube body 24, the elastic pieces 25 are uniformly distributed along the circumferential direction of the tube body 24, and the outer walls of the upper ends of the elastic pieces 25 are provided with hooks 26.

As shown in fig. 2, a plurality of stoppers 27 for abutting against the lower end surface of the valve body 1 are horizontally disposed on the inner wall of the upper end of the pipe body 24, and a through hole 12 for the hook 26 to pass through is further formed on the flange 11 and the valve body 1, and a protruding ring 13 for the hook 26 to hook is further disposed on the inner wall of the upper end of the valve body 1.

When the adapter 2 is damaged and needs to be disassembled for maintenance, the valve cover 3 is taken down, the snap hooks 26 and the upper ends of the elastic pieces 25 are pressed to be close to each other, and the snap hooks 26 are gradually separated from the surface of the convex ring 13. When the hook 26 completely disengages from the upper end surface of the protruding ring 13, the tube body 24 is pulled to move downward, and at this time, the tube body 24 drives the elastic piece 25 and the hook 26 to move synchronously, and the elastic piece 25 and the hook 26 move downward along the inner wall of the through hole 12. The whole connecting pipe 2 can be detached after the elastic piece 25 and the hook 26 are completely separated from the through hole 12.

Then, after the new adapter 2 is taken out, the elastic piece 25 and the hook 26 are inserted into the through hole 12, and the tube body 24 is driven to drive the elastic piece 25 and the hook 26 to move upwards. At this time, the pipe body 24 drives the stopper 27 to move upward synchronously until the stopper 27 abuts against the lower end surface of the valve body 1, the hook 26 is aligned with the surface of the convex ring 13 right, and the surface of the convex ring 13 is hooked by the hook in an elastic manner, so that the whole connecting pipe 2 is installed and fixed.

As shown in fig. 2, a circle of locking grooves 14 communicated with the through holes 12 are arranged at the upper end of the valve body 1, locking rings 15 abutting against the inner walls of the elastic pieces 25 are embedded in the locking grooves 14, and a plurality of pressing blocks 31 for pressing the locking rings 15 are arranged on the lower end surface of the valve cover 3.

After the outer wall of the installation pipe is installed, the locking ring 15 is embedded into the locking groove 14, and the locking ring 15 abuts against the inner wall of one side, close to the elastic piece 25, of the elastic piece 25 at the moment, so that the elastic piece 25 is fixed. Then after the valve cap 3 is buckled, the pressing block 31 on the lower end face of the valve cap 3 abuts against the locking ring 15 and fixes the locking ring 15, so that the limiting fixation of the elastic sheet 25 is realized, the elastic sheet 25 and the clamping hook 26 are prevented from being separated from the convex ring 13 in the working process, and the use stability of the connecting pipe 2 and the whole quick coupling is improved.

The specific embodiments are only for explaining the present invention, and the present invention is not limited thereto, and those skilled in the art can make modifications without inventive contribution to the present embodiments as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A quick connector comprises a valve body (1), a connecting pipe (2) arranged on the valve body (1), and a valve cover (3) buckled on the upper end face of the valve body (1);

the method is characterized in that: the outer wall of the valve body (1) is connected with a sliding sleeve (4) in a sliding mode, a circle of flange (11) is arranged on the side wall of the middle of the valve body (1), a folding edge (43) which is abutted against the outer wall of the connecting pipe (2) is arranged at the lower end of the sliding sleeve (4) in an inward bending mode, a spring (22) is sleeved on the outer wall of the connecting pipe (2), and the spring (22) is located between the folding edge (43) and the flange (11);

a plurality of guide rods (44) are vertically arranged on the inner wall of the lower end of the folded edge (43), the guide rods (44) are uniformly distributed along the circumferential direction of the folded edge (43), and a guide groove (23) for the guide rods (44) to slide is formed in the outer wall of the lower end of the connecting pipe (2);

a plurality of strip-shaped limiting holes (5) penetrate through the side wall of the connecting pipe (2), the limiting holes (5) are uniformly distributed along the circumferential direction of the connecting pipe (2), limiting blocks (51) are arranged in the limiting holes (5), the lower ends of the limiting blocks (51) are bent outwards, and a limiting groove (45) for embedding the lower ends of the limiting blocks (51) is formed in the inner wall of the lower end of the folded edge (43);

the upper end of the limiting block (51) is hinged to the inner wall of the upper end of the limiting hole (5), and the inner wall of the lower end of one side, close to each other, of the limiting block (51) is horizontally provided with a strip-shaped clamping block (52);

the connecting pipe (2) comprises a pipe body (24) and a plurality of elastic pieces (25) arranged on the upper end face of the pipe body (24), the elastic pieces (25) are uniformly distributed along the circumferential direction of the pipe body (24), and the outer walls of the upper ends of the elastic pieces (25) are provided with clamping hooks (26);

the flange (11) and the valve body (1) are provided with through holes (12) for the hooks (26) to penetrate through, and the inner wall of the upper end of the valve body (1) is provided with a convex ring (13) for the hooks (26) to hook tightly.

2. A quick coupling according to claim 1, wherein: an arc-shaped guide block (53) is arranged between the lower end face of the clamping block (52) and the inner wall of the limiting block (51).

3. A quick coupling according to claim 2, wherein: the inner wall of the lower end of the connecting pipe (2) is provided with an arc-shaped guide surface (21).

4. A quick coupling according to claim 1, wherein: the upper end of the valve body (1) is provided with a circle of locking groove (14) communicated with the through hole (12), and a locking ring (15) tightly abutting against the inner wall of the elastic sheet (25) is embedded in the locking groove (14).

5. A quick coupling according to claim 4, wherein: the lower end face of the valve cover (3) is provided with a plurality of pressing blocks (31) used for pressing the locking ring (15).

6. A quick coupling according to claim 5, wherein: therefore, a plurality of stop blocks (27) which are used for abutting against the lower end face of the valve body (1) are horizontally arranged on the inner wall of the upper end of the pipe body (24).

7. A quick coupling according to claim 1, wherein: and a circle of anti-slip rings (41) are arranged on the outer wall of the upper end of the sliding sleeve (4).

8. A quick coupling according to claim 1, wherein: the outer wall of the sliding sleeve (4) is vertically provided with a plurality of anti-slip ribs (42), and the anti-slip ribs (42) are uniformly distributed on the outer wall of the sliding sleeve (4).