CN216952175U

CN216952175U - Quick joint

Info

Publication number: CN216952175U
Application number: CN202220685396.8U
Authority: CN
Inventors: 查方兵
Original assignee: Yuhuan Mingsheng Machinery Factory
Current assignee: Yuhuan Mingsheng Machinery Factory
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-07-12
Anticipated expiration: 2032-03-25

Abstract

The utility model provides a quick connector which comprises a connector body with a connecting hole, wherein the connector body comprises a quick connecting outer sleeve and a connecting pipe inner core in threaded connection with the quick connecting outer sleeve, a retaining ring is integrally formed inside the quick connecting outer sleeve, a sealing ring is arranged inside the quick connecting outer sleeve, and the sealing ring is tightly pressed on the retaining ring by the connecting pipe inner core. The sealing ring is arranged on the outer wall of the shell, and the sealing ring is arranged on the outer wall of the shell. The joint body is divided into the quick-connection outer sleeve and the connecting pipe inner core which are in threaded connection, and the sealing ring is arranged between the quick-connection outer sleeve and the connecting pipe inner core, so that the sealing ring is more convenient to disassemble and assemble. The outer ring of the elbow pipe is abutted against the inner ring of the sealing ring, so that a larger contact area can be achieved, and the sealing performance of the quick connector can be effectively improved. The bent pipe is integrally formed, has the advantages of high structural strength and strong sealing effect, and is not easy to leak water in the use process.

Description

Quick joint

Technical Field

The present invention relates to a coupling, and more particularly, to a quick coupling.

Background

At present, chinese patent No. CN201925642U discloses a quick coupling, which includes a body. The center of the body is provided with a connecting hole, and the connecting hole penetrates through the body along the axial direction. The inner hole wall of the connecting hole is coaxially provided with an annular groove, and an O-shaped sealing ring is embedded in the groove. When the O-shaped sealing ring is used, the O-shaped sealing ring can be circumferentially and hermetically inserted into the connecting pipe in the connecting hole. However, since the annular groove is formed in the body, the O-ring can be removed by inserting a hand or a tool into the connecting hole, that is, the O-ring is difficult to remove.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is to provide a quick coupling, which has the advantage of easy assembly and disassembly of the sealing ring.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a quick-operation joint, is equipped with the joint body of connecting hole in including, the joint body is including connecing the overcoat soon and taking over the inner core, the inside integrated into one piece that connects the overcoat soon has the fender ring, the inside of connecing the overcoat soon is provided with the sealing washer, take over inner core threaded connection in connect the overcoat soon, just take over the inner core be used for with the sealing washer compress tightly in keep off the ring.

Through the technical scheme, when the sealing ring is installed, the sealing ring is placed into the quick-connection outer sleeve in the first step, so that the sealing ring is abutted to the blocking ring, the connecting pipe inner core is in threaded connection with the quick-connection outer sleeve in the second step, the connecting pipe inner core is continuously rotated in the third step, and the sealing ring is pressed on the blocking ring through the connecting pipe inner core. When the sealing ring is disassembled, firstly, the connecting pipe inner core is rotated to separate the connecting pipe inner core from the quick-connection outer sleeve, and secondly, the sealing ring is taken out of the quick-connection outer sleeve.

The connector body is divided into the quick-connection outer sleeve and the connecting pipe inner core which are connected in a threaded manner, and the sealing ring is arranged between the quick-connection outer sleeve and the connecting pipe inner core, so that the sealing ring is more convenient to disassemble and assemble.

Preferably, the sealing ring is arranged on the outer wall of the shell, and the sealing ring is arranged on the outer wall of the shell.

Through above-mentioned technical scheme, the outer lane of return bend and the inner circle of sealing washer are supported tightly, so can have great area of contact, can effectively promote this quick-operation joint's leakproofness. The bent pipe is integrally formed, has the advantages of high structural strength and strong sealing effect, and is not easy to leak water in the use process.

Preferably, the elbow connector further comprises a connecting sleeve, and the connecting sleeve is sleeved on the end part, far away from the connector body, of the elbow.

Through above-mentioned technical scheme, because the return bend is located to the adapter sleeve, so only need rotate the adapter sleeve and can be connected quick-operation joint and pipe fitting for this quick-operation joint's installation becomes more swift.

Preferably, the return bend is kept away from a plurality of mounting ring grooves have been seted up along the axial on the tip of joint body, each all inlay in the mounting ring groove and be equipped with the rubber circle, the rubber circle with the adapter sleeve offsets tightly.

Through above-mentioned technical scheme, the rubber circle can be sealed with the clearance between return bend and the adapter sleeve for further promote this quick-operation joint's leakproofness.

Preferably, the end part of the elbow pipe, which is far away from the joint body, is reduced in diameter to form a connecting section, a positioning ring is arranged in the connecting sleeve, and the connecting section penetrates through the positioning ring.

Through above-mentioned technical scheme, be formed with the fender shoulder between linkage segment and the return bend, can restrict the length that the return bend inserted the adapter sleeve.

Preferably, the storage ring groove is formed in the outer side of the connecting section, a limiting clamp spring is embedded in the storage ring groove, and the limiting clamp spring is abutted to the positioning ring.

Through above-mentioned technical scheme, spacing jump ring offsets tightly with the holding ring, can carry on spacingly to return bend and adapter sleeve for be difficult for separating between return bend and the adapter sleeve.

Drawings

FIG. 1 is a schematic structural view of a fitting body;

FIG. 2 is a schematic structural diagram of an embodiment;

fig. 3 is an enlarged view of a portion a of fig. 2.

Reference numerals: 1. connecting holes; 2. a connector body; 21. quickly connecting the outer sleeve; 22. taking over the inner core; 3. a baffle ring; 4. a seal ring; 5. anti-skid lines; 6. a limiting hole; 7. a limiting ball; 8. a restraining sleeve; 9. an elastic member; 10. bending the pipe; 11. a limiting ring groove; 12. a positioning ring groove; 13. positioning a clamp spring; 14. a convex ring; 15. mounting a ring groove; 16. a rubber ring; 17. connecting sleeves; 18. a connecting section; 19. a positioning ring; 20. a guide ramp; 23. a receiving ring groove; 24. and a limiting clamp spring.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.

A quick coupling, as shown in fig. 1 to 3, comprises a coupling body 2. The center of the joint body 2 is provided with a connecting hole 1, and the connecting hole 1 penetrates through the joint body 2 along the axial direction.

The joint body 2 comprises a quick-connection outer sleeve 21 and a connecting pipe inner core 22. The inner wall of the quick-connection jacket 21 is integrally formed with a baffle ring 3, and the quick-connection jacket 21 and the baffle ring 3 are coaxially arranged. The sealing ring 4 is arranged in the quick-connection outer sleeve 21, the sealing ring 4 is abutted to the baffle ring 3, and the outer ring of the sealing ring 4 is abutted to the inner wall of the quick-connection outer sleeve 21. One end of the connecting pipe inner core 22 extends into the quick-connection outer sleeve 21 and is in threaded connection with the quick-connection outer sleeve 21, and the sealing ring 4 is tightly pressed on the baffle ring 3 by the connecting pipe inner core 22.

The outer wall of the quick-connection jacket 21 is provided with a plurality of anti-slip threads 5, the anti-slip threads 5 are evenly distributed along the circumferential direction of the quick-connection jacket 21, and the anti-slip threads 5 are arranged along the axial direction of the quick-connection jacket 21.

A plurality of limiting holes 6 are formed in the outer side of the quick connection outer sleeve 21 along the circumferential direction, and the diameter of each limiting hole 6 is gradually reduced towards one side of the connecting hole 1. Each limiting hole 6 is internally provided with a limiting ball 7, the diameter of each limiting ball 7 is larger than the minimum diameter of each limiting hole 6 and smaller than the maximum diameter of each limiting hole 6, and the diameter of each limiting ball 7 is larger than the depth of each limiting hole 6.

The limiting sleeve 8 is sleeved on the outer side of the quick connection outer sleeve 21, a guide inclined plane 20 is arranged in the limiting sleeve 8, and the guide inclined plane 20 faces towards one side of the quick connection outer sleeve 21 and is used for gradually pressing the limiting ball 7 to the connecting hole 1.

The outer wall of the quick-connection jacket 21, which is far away from the quick-connection jacket 21, is provided with a positioning ring 19 groove 12, and a positioning snap spring 13 is embedded in the positioning ring 19 groove 12. The inner wall of the limiting sleeve 8 is provided with a convex ring 14, and the convex ring 14 is positioned on one side of the positioning clamp spring 13 close to the connecting pipe inner core 22. The side of the convex ring 14 facing away from the connecting pipe inner core 22 can interfere with the side of the positioning clamp spring 13 close to the connecting pipe inner core 22 to limit the separation of the limiting sleeve 8 from the quick-connecting outer sleeve 21.

An elastic piece 9 is arranged between the quick connection outer sleeve 21 and the limiting sleeve 8, and the elastic piece 9 is used for driving the limiting sleeve 8 to be far away from the connecting pipe inner core 22. In this embodiment, the elastic member 9 is a spring.

The quick connector further comprises an elbow 10, one end of the elbow 10 extends into the quick connection outer sleeve 21 and penetrates through the sealing ring 4, and the outer wall of the elbow 10 abuts against the inner ring of the sealing ring 4. The position of the bent pipe 10 extending into the outer wall of the quick connection outer sleeve 21 is provided with a limiting ring groove 11, and a limiting ball 7 is clamped into the limiting ring groove 11. A plurality of mounting ring grooves 15 are formed in the outer wall of the other end of the bent pipe 10, and the mounting ring grooves 15 are uniformly distributed along the axial direction of the bent pipe 10. Each mounting ring groove 15 is embedded with a rubber ring 16, and the outer ring of the rubber ring 16 protrudes from the notch of the mounting ring groove 15. The quick joint further comprises a connecting sleeve 17, the end part of the elbow 10 far away from the quick connecting outer sleeve 21 is inserted into the connecting sleeve 17, and the outer ring of the rubber ring 16 is abutted against the inner wall of the connecting sleeve 17. The end of the elbow 10 is reduced to form a connecting section 18, a positioning ring 19 is arranged on the inner wall of the connecting sleeve 17, the connecting section 18 passes through the positioning ring 19, and the outer wall of the connecting section 18 is abutted against the inner wall of the positioning ring 19. The outer side of the connecting section 18 is provided with a containing ring groove 23, a limiting snap spring 24 is embedded in the containing ring groove 23, and the limiting snap spring 24 is abutted against the positioning ring 19.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. A quick coupling is characterized in that: be equipped with joint body (2) of connecting hole (1) in including, connect body (2) including connecing overcoat (21) and takeover inner core (22) soon, the inside integrated into one piece that connects overcoat (21) soon has fender ring (3), the inside of connecing overcoat (21) soon is provided with sealing washer (4), takeover inner core (22) threaded connection in connect overcoat (21) soon, just takeover inner core (22) be used for with sealing washer (4) compress tightly in keep off ring (3).

2. A quick coupling as claimed in claim 1, wherein: still include return bend (10), the one end of return bend (10) is passed sealing washer (4), just return bend (10) with sealing washer (4) are supported tightly.

3. A quick coupling as claimed in claim 2, wherein: still include adapter sleeve (17), adapter sleeve (17) cover is located return bend (10) are kept away from on the tip of joint body (2).

4. A quick coupling as claimed in claim 3, wherein: keep away from return bend (10) a plurality of installation annular (15), each have been seted up along the axial on the tip of joint body (2) all inlay in installation annular (15) and be equipped with rubber circle (16), rubber circle (16) with adapter sleeve (17) counterbalance tightly.

5. A quick coupling as claimed in claim 3, wherein: the end part of the elbow (10) far away from the joint body (2) is reduced in diameter to form a connecting section (18), a positioning ring (19) is arranged inside the connecting sleeve (17), and the connecting section (18) penetrates through the positioning ring (19).

6. The quick connector of claim 5, further comprising: accomodate annular (23) have been seted up in the outside of linkage segment (18), it is equipped with spacing jump ring (24) to accomodate in annular (23), spacing jump ring (24) with holding ring (19) are supported tightly.