CN218845411U

CN218845411U - Quick-change connector

Info

Publication number: CN218845411U
Application number: CN202223141190.8U
Authority: CN
Inventors: 胡强浦
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-04-11
Anticipated expiration: 2032-11-25

Abstract

The utility model provides a quick-change connector, which comprises a connector main body, a valve core sleeve and a connector sleeve, wherein a necking part extends outwards from the head part of the connector main body; the valve core is provided with a fluid channel and a fluid hole, the outer wall of the tail part of the valve core is provided with a necking groove, and the necking part is extruded and shrunk by a necking machine and is shrunk into the necking groove so as to connect the joint main body and the valve core into a whole; the valve core sleeve is sleeved outside the head of the valve core in a sealing and sliding manner and can seal the fluid hole; the head of the joint sleeve is sleeved outside the valve core sleeve and is provided with a locking mechanism for connection, and the tail of the joint sleeve is sleeved outside the head of the joint main body. The utility model discloses a joint main part and case separately process to thereby will connect main part and case even as an organic whole in the necking down groove on the necking down machine extrusion shrink and the retraction case is carried out to the necking down portion in the joint main part, processing is convenient, requires lowerly to the processing equipment, and the excision clout is less, can not lead to the material extravagant, leads to joining in marriage the nature well.

Description

Quick-change connector

Technical Field

The utility model relates to a quick change coupler technical field especially relates to a quick change coupler of easily processing.

Background

The quick-change connector can be quickly inserted and pulled out, is unidirectionally sealed, and has a non-return function, so the quick-change connector is widely applied to the fields of petroleum, chemical engineering, metallurgy, hydropower, engineering machinery, ships, electromechanical equipment and the like. The existing quick-change connector comprises a connector main body, a connector sleeve, a valve core sleeve and a connecting sleeve, wherein a channel with one open end and one closed end is arranged in the connector main body, connecting threads are arranged in the open end of the channel, a through hole communicated with the channel is formed in the side wall of the closed end of the channel, the valve core sleeve is movably sleeved outside the connector main body and is provided with a valve core spring between the connector main body, the valve core sleeve can seal the through hole, the connector sleeve is sleeved outside the valve core sleeve, the tail of the connector sleeve is fixed with the connector main body, a plurality of locking steel balls are arranged in the hollow-out part of the head of the connector sleeve, the connecting sleeve is slidably arranged outside the connector sleeve, and the connecting sleeve is provided with a connecting spring between the connector sleeve. Such as the male connector of a simple quick connector disclosed in patent No. 202120565951.9. The quick-change connector is equivalent to the connector main body and the valve core being manufactured into a whole, when in processing, in order to ensure the precision of a product, the inner wall, the outer wall and the through hole of the connector main body need to be processed on the same equipment, the requirement on processing equipment is extremely high, and in addition, because the thicknesses of all sections of the connector main body are inconsistent, redundant materials need to be cut off, so that the material waste is caused. In addition, the joint main body can only be connected with the pipe fittings and the valve cores of the same specification, and the compatibility is poor.

Disclosure of Invention

An object of the utility model is to provide a convenient quick change coupler of processing, it can solve the technical problem who mentions in the background art.

In order to achieve the above purpose, the technical solution of the present invention is as follows: a quick-change connector comprises a hollow connector main body, wherein first connecting threads for connection are arranged on the outer wall of the head of the connector main body, a necking part extends outwards from the head of the connector main body, a circle of first blocking shoulder is convexly arranged on the inner wall of the middle part of the connector main body, and second connecting threads for connection are arranged at the tail of the connector main body;

the valve core is provided with a fluid channel with an opening at the tail part and a closed head part, the side wall of the head part of the valve core is provided with a fluid hole communicated with the fluid channel, the tail part of the valve core extends into the joint main body from the head part of the joint main body and is propped against the first retaining shoulder, the outer wall of the tail part of the valve core is provided with a necking groove opposite to the necking part, and the necking part is extruded and shrunk into the necking groove by a necking machine so as to connect the joint main body and the valve core into a whole;

the valve core sleeve is sleeved outside the head of the valve core in a sealing and sliding manner and can seal the fluid hole, and a first spring is arranged between the tail of the valve core sleeve and the head of the joint main body;

the head of the joint sleeve is sleeved outside the valve core sleeve and provided with a locking mechanism for connection, the tail of the joint sleeve is sleeved outside the head of the joint main body, the inner wall of the tail of the joint sleeve is provided with a third connecting thread for connection, and the joint main body is connected with the joint sleeve through the matching of the first connecting thread and the third connecting thread.

Preferably, the throat portion is integrally formed with the joint main body by a connecting section.

Preferably, a first sealing ring is arranged between the inner wall of the joint main body and the outer wall of the valve core.

Preferably, a second sealing ring is arranged between two ends of the inner wall of the valve core sleeve and the outer wall of the valve core.

Preferably, a spring groove located on the outer side of the throat is concavely formed in the end face of the head of the joint main body, a spring retaining shoulder is arranged at the tail of the valve core sleeve, one end of the first spring is supported in the spring groove, and the other end of the first spring is supported on the spring retaining shoulder.

Preferably, a second stop shoulder is arranged in the head of the joint sleeve and stops at the outer side of the spring stop shoulder.

Preferably, the head of the joint sleeve is provided with a plurality of through holes which are uniformly distributed along the circumferential direction, the locking mechanism comprises a connecting sleeve and a plurality of steel balls, the steel balls are arranged in the through holes in a one-to-one correspondence manner, the connecting sleeve is sleeved outside the joint sleeve and forces the steel balls to be arranged in the through holes, a second spring is arranged between the tail of the connecting sleeve and the joint sleeve, and the head of the connecting sleeve is internally provided with an avoiding groove which is opposite to the steel balls.

Preferably, a snap spring groove is formed in the head of the joint sleeve and located on the outer side of the through hole, a snap spring is arranged in the snap spring groove, and the snap spring is used for preventing the connecting sleeve from being separated from the joint sleeve.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses a joint main part and case separately process to thereby will connect main part and case even as an organic whole in the necking down groove on the necking down machine extrusion shrink and the retraction case to the necking down portion in the joint main part, processing is convenient, and is lower to the processing equipment requirement. And the joint main body and the valve core are processed separately, raw materials with proper thickness can be selected, the cut excess materials are less, and the material waste cannot be caused. In addition, because the joint main body and the valve core are of a split structure, the head of the joint main body is matched with the tail of the valve core only by the size, and other parts of the joint main body and the valve core can be of various sizes, so that the compatibility of the joint main body, the valve core and a pipe fitting is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the joint body of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 and 2, the utility model provides a quick-change connector, including a hollow joint main body 1, be equipped with the first connecting thread 2 that is used for connecting on the outer wall of the head of this joint main body 1, the head of this joint main body 1 outwards extends has throat portion 3, and the inner wall epirelief at the middle part of this joint main body 1 is equipped with the first fender shoulder 4 of round, and the afterbody of this joint main body 1 is equipped with the second connecting thread 5 that is used for connecting, and second connecting thread 5 can be the internal thread, does also for the external screw thread.

A valve core 6, the valve core 6 has a fluid channel 7 with an open tail and a closed head, a fluid hole 8 communicated with the fluid channel 7 is provided on the side wall of the head of the valve core 6, the tail of the valve core 6 extends into the joint body 1 from the head of the joint body 1 and abuts against the first retaining shoulder 4, a necking groove opposite to the necking part 3 is provided on the outer wall of the tail of the valve core 6, the necking part 3 is squeezed and shrunk by a necking machine and shrinks into the necking groove to integrate the joint body 1 and the valve 6 core.

And the valve core sleeve 9 is sleeved outside the head part of the valve core 6 in a sealing and sliding manner and can seal the fluid hole 8, and a first spring 10 is arranged between the tail part of the valve core sleeve 9 and the head part of the joint main body 1.

The joint comprises a hollow joint sleeve 11, the head of the joint sleeve 11 is sleeved outside the valve core sleeve 9 and is provided with a locking mechanism for connection, the tail of the joint sleeve 11 is sleeved outside the head of the joint main body 1, the inner wall of the tail of the joint sleeve 11 is provided with a third connecting thread 12 for connection, and the joint main body 1 is connected with the joint sleeve 11 through the matching of the first connecting thread 2 and the third connecting thread 12.

The utility model discloses when using, the utility model discloses the second connecting thread 5 of the joint main part 1 of one end links to each other with the gas circuit pipe fitting, and another butt joint with another quick change coupler, the head of quick change coupler insert in the adapter sleeve 11 and back-open case cover 9, and case cover 9 no longer seals on the fluid hole 8 of case 6 to open fluid passage 7. Meanwhile, the locking mechanism on the joint sleeve 11 fixes the head of the other quick-change joint, so that the two quick-change joints are connected and fixed. After the locking mechanism releases the head of the other quick-change connector, the head of the quick-change connector is drawn out of the connector sleeve 11, the valve core sleeve 9 is reset under the action of the first spring 10, and the valve core sleeve 9 is sealed on the fluid hole 8 of the valve core 6 again, so that the fluid channel 7 is closed. The utility model discloses when production, joint main part 1 and case 6 separately process to thereby extrude the shrink and during the groove of reducing on the retraction case 6 will connect main part 1 and case 6 even as an organic whole through reducing machine to the throat portion 3 on the joint main part 1, processing is convenient, and is lower to the processing equipment requirement. And the joint main body 1 and the valve core 6 are separately processed, raw materials with proper thickness can be selected, the cutting excess material is less, and the material waste is avoided. In addition, because the joint main body 1 and the valve core 6 are of a split structure, the head of the joint main body 1 is only required to be matched with the tail of the valve core 6 in size, and other parts of the joint main body and the valve core can be in various sizes, so that the compatibility of the joint main body 1, the valve core 6 and a pipe fitting is greatly improved.

Preferably, the necking portion 3 is integrated with the connector body 1 through a connecting section 13, the thickness of the connecting section 13 is the smallest thickness in the whole connector body 1, and when the necking portion 3 is compressed and shrunk in a necking machine, the connecting section 13 is deformed to a certain extent, so that the necking portion 3 is conveniently shrunk into a necking groove.

Preferably, a first sealing ring 14 is arranged between the inner wall of the joint main body 1 and the outer wall of the valve core 6, and a second sealing ring 15 is arranged between both ends of the inner wall of the valve core sleeve 9 and the outer wall of the valve core 6, so that the sealing effect is good.

Preferably, a spring groove 16 located outside the choke portion 3 is concavely arranged on an end face of the head portion of the joint main body 1, a spring retaining shoulder 17 is arranged at the tail portion of the valve core sleeve 9, one end of the first spring 10 is supported in the spring groove 16, the other end of the first spring 10 is supported on the spring retaining shoulder 17, and the joint main body is simple in structure.

Preferably, a second stop shoulder 18 is arranged in the head of the joint sleeve 11, the second stop shoulder 18 stops outside the spring stop shoulder 17, and the second stop shoulder 18 is used for limiting the position of the valve core sleeve 9.

Preferably, a plurality of through holes 19 uniformly distributed along the circumferential direction are formed in the head of the joint sleeve 11, the locking mechanism comprises a connecting sleeve 20 and a plurality of steel balls 21, the steel balls 21 are correspondingly arranged in the through holes 19 one by one, the connecting sleeve 20 is sleeved outside the joint sleeve 11 and forces the steel balls 21 to be arranged in the through holes 19, a second spring 22 is arranged between the tail of the connecting sleeve 20 and the joint sleeve 11, and an avoiding groove 23 opposite to the steel balls 21 is formed in the head of the connecting sleeve 20. When the connection is made, the escape groove 23 of the connecting sleeve 20 is opposite to the steel ball 21, the second spring 22 is compressed, then the head of the other quick-change connector is inserted into the connector sleeve 11 and pushes the valve core sleeve 9 open until the circle of groove on the head of the other quick-change connector is opposite to the steel ball 21, the connecting sleeve 20 moves outwards under the action of the second spring 22 and forces the steel ball 21 to be placed in the through hole and clamped into the groove on the head of the other quick-change connector, and therefore the two quick-change connectors are connected together.

Preferably, a snap spring groove is formed in the head of the joint sleeve 11, which is located outside the through hole 19, and a snap spring 24 is installed in the snap spring groove, and the snap spring 24 is used for preventing the connecting sleeve 20 from being pulled out of the joint sleeve 11.

While the embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the description and embodiments, but is capable of being applied in all kinds of fields adapted to the invention, and further modifications may readily be made by those skilled in the art, and the invention is therefore not limited to the details shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims

1. A quick-change coupler is characterized in that: the joint comprises a hollow joint main body, wherein first connecting threads for connection are arranged on the outer wall of the head of the joint main body, a necking part extends outwards from the head of the joint main body, a circle of first blocking shoulder is convexly arranged on the inner wall of the middle part of the joint main body, and second connecting threads for connection are arranged at the tail of the joint main body;

2. The quick-change coupling according to claim 1, wherein: the choke portion is made integral with the joint main body by a connecting section.

3. The quick-change coupling according to claim 1, wherein: a first sealing ring is arranged between the inner wall of the joint main body and the outer wall of the valve core.

4. The quick-change coupling according to claim 1, wherein: and second sealing rings are arranged between two ends of the inner wall of the valve core sleeve and the outer wall of the valve core.

5. The quick-change coupling according to any one of claims 1 to 4, characterized in that: the end face of the head of the joint main body is concavely provided with a spring groove positioned on the outer side of the necking part, the tail of the valve core sleeve is provided with a spring retaining shoulder, one end of the first spring is supported in the spring groove, and the other end of the first spring is supported on the spring retaining shoulder.

6. The quick-change coupler according to claim 5, wherein: and a second retaining shoulder is arranged in the head of the joint sleeve and is retained outside the spring retaining shoulder.

7. The quick-change coupling according to any one of claims 1 to 4, characterized in that: the joint sleeve is characterized in that a plurality of through holes which are uniformly distributed along the circumferential direction are formed in the head of the joint sleeve, the locking mechanism comprises a connecting sleeve and a plurality of steel balls, the steel balls are arranged in the through holes in a one-to-one correspondence mode, the connecting sleeve is sleeved outside the joint sleeve and forces the steel balls to be arranged in the through holes, a second spring is arranged between the tail of the connecting sleeve and the joint sleeve, and an avoiding groove which is opposite to the steel balls is formed in the head of the connecting sleeve.

8. The quick-change coupling according to claim 7, wherein: the head of the joint sleeve is positioned on the outer side of the through hole and is provided with a clamp spring groove, a clamp spring is arranged in the clamp spring groove and is used for blocking the connecting sleeve from being separated from the joint sleeve.