CN112303365A

CN112303365A - Quick coupling

Info

Publication number: CN112303365A
Application number: CN202011146486.1A
Authority: CN
Inventors: 楼仲宇; 楼焕银; 薛大伟; 童超
Original assignee: Zhejiang Songqiao Pneumatic And Hydraulic Co ltd
Current assignee: Zhejiang Songqiao Pneumatic And Hydraulic Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-02-02

Abstract

The invention relates to a connecting device capable of being quickly disassembled and assembled, in particular to a quick connector. Quick-operation joint, including male joint and female joint, the male joint includes the plug, plug rear portion inner wall cover is equipped with the plug connector body, plug inner wall middle part is equipped with the plug disk seat, plug inner wall front portion is equipped with the plug case, the plug outer wall is equipped with the stopping groove, the female joint includes casing and overcoat, the anterior outer wall cover of casing has the overcoat, the overcoat is connected with the steel ball, the steel ball is in the casing through-hole, be equipped with the overcoat spring between casing and the overcoat, casing rear portion inner wall is equipped with the casing connector body, casing and casing connector body junction card are equipped with the casing disk seat, be equipped with the casing valve pad behind the casing disk seat, casing disk seat and the contact of casing case nut, casing case nut cover is equipped with casing case. The invention has the advantages that: novel structure, design benefit is simple and easy, and casing case nut thread tightening casing case core pole, casing valve barrel Y type circle pressure is big more.

Description

Quick coupling

Technical Field

The invention relates to a connecting device capable of being quickly disassembled and assembled, in particular to a quick connector.

Background

The quick joint comprises a hydraulic quick joint and various fluid quick joints, and is a connecting device for quickly connecting or disconnecting pipelines and realizing quick assembly and disassembly. The quick connector has a bidirectional non-return function, so that the pipeline is free from leakage when disconnected, and therefore, the quick connector is widely applied to the fields of petroleum, metallurgy, hydropower, engineering machinery, ships, electromechanical equipment and the like. The quick joint connecting structure is the most important part of the quick joint, and the connecting mode and the structure of the quick joint directly determine the use convenience, the reliability and the product quality of the quick joint. The quick connector consists of a female connector and a male connector, the sealing performance under the action of the existing high pressure is not enough, and the use effect and the use safety of the quick connector can be influenced.

Disclosure of Invention

In order to solve the technical problem that the sealing performance under the action of high pressure is not enough, the invention provides a quick connector.

The technical scheme of the invention is as follows:

the quick connector comprises a male connector and a female connector, the male connector comprises a plug, a plug connector body is sleeved on the inner wall of the rear part of the plug, a plug valve seat is arranged in the middle of the inner wall of the plug, a plug valve core is arranged on the front part of the inner wall of the plug, a plug valve core spring is arranged between the plug valve core and the plug valve seat, a retaining groove is arranged on the outer wall of the plug, the female connector comprises a shell and an outer sleeve, the outer sleeve is sleeved on the outer wall of the front part of the shell and connected with a steel ball, the steel ball is arranged in a through hole of the shell, the outer sleeve spring is arranged between the shell and the outer sleeve, a shell connector body is arranged on the inner wall of the rear part of the shell, the shell valve seat is clamped at the joint of the shell and the shell connector body, a shell valve pad, a shell valve core spring is arranged between the shell valve core rod and the shell valve sleeve.

A plug gasket is arranged between the plug and the plug connector body, the inner wall of the plug connector body is smooth, the front portion of the plug connector body is in contact with a plug valve seat, and an O-shaped ring of the plug connector body is arranged in the plug gasket.

The inner wall of the opening at the front end of the plug is smooth, the rear side of the opening is provided with an inclined plane, and the plug valve core is clamped in the inclined plane in a matching way.

And an O-shaped ring of the plug valve core is arranged on the outer wall of the front part of the plug valve core.

The casing valve seat is arranged at the rear end of the inner wall of the casing in a concave mode, the casing valve seat O-shaped ring is arranged on the rear side of the casing valve seat, the casing valve gasket is arranged between the casing joint body and the casing valve seat and is in contact with the casing valve seat O-shaped ring, and the casing valve gasket O-shaped ring is arranged on the outer wall of the casing valve gasket.

The outer wall of the shell valve gasket is provided with a shell valve sleeve Y-shaped ring, a shell valve sleeve O-shaped ring and a sealing ring, one part of the sealing ring is in contact with the shell valve gasket, the other part of the sealing ring is in contact with the shell valve core, the middle part of the outer wall of the sealing ring is provided with a shell O-shaped ring in a concave mode, the inner wall of the front end of the sealing ring is provided with a shell valve core O-shaped ring in a concave mode, the shell valve core O-shaped ring is in contact.

The technical scheme of the invention has the advantages of novel structure, ingenious and simple design, the shell valve core rod is fixed by the shell valve core nut in a threaded manner, the sealing is better when the pressure of the Y-shaped ring of the shell valve sleeve is higher, the E-shaped groove is formed in the shell valve core rod, the installation is convenient, the performance parameters of the quick connector are improved, the processing is simple, the connection is convenient and fast, the strength is high, and the defacement resistance is good.

Drawings

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

FIG. 2 is a schematic view of the construction of the male connector of the present invention;

FIG. 3 is a schematic view of the structure of the female joint of the present invention.

Detailed Description

The invention is further illustrated by the following figures and examples.

Examples

The quick coupling shown in figures 1, 2 and 3 comprises a male coupling and a female coupling, the male coupling comprises a plug 2, a plug coupling body 11 is sleeved on the inner wall of the rear portion of the plug 2, a plug valve seat 12 is arranged in the middle of the inner wall of the plug 2, a plug valve core 4 is arranged on the front portion of the inner wall of the plug 2, a plug valve core spring 26 is arranged between the plug valve core 4 and the plug valve seat 12, a backstop groove is arranged on the outer wall of the plug 2, the female coupling comprises a housing 1 and an outer sleeve 3, the outer sleeve 3 is sleeved on the outer wall of the front portion of the housing 1, the outer sleeve 3 is connected with a steel ball 16, the steel ball 16 is arranged in a through hole of the housing 1, an outer sleeve spring 10 is arranged between the housing 1 and the outer sleeve 3, a housing coupling body 5 is arranged on the inner wall of the rear portion of the housing 1, a housing valve seat 8, the front part of the shell valve core rod 25 is contacted with the shell valve core 6, a sealing ring 13 is arranged outside the shell valve core 6, the sealing ring 13 is contacted with the shell valve sleeve 15, and a shell valve core spring 23 is arranged between the shell valve core rod 25 and the shell valve sleeve 15.

A plug gasket 14 is arranged between the plug 2 and the plug connector body 11, the inner wall of the plug connector body 11 is smooth, the front part of the plug connector body 11 is contacted with the plug valve seat 12, and a plug connector body O-shaped ring 27 is arranged in the plug gasket 14.

The inner wall of the opening at the front end of the plug 2 is smooth, the rear side of the opening is provided with an inclined plane, and the plug valve core 4 is clamped in the plug in a matching way.

And the outer wall of the front part of the plug valve core 4 is provided with a plug valve core O-shaped ring 7.

The rear end of the inner wall of the shell 1 is concavely provided with a shell valve seat 8, the rear side of the shell valve seat 8 is provided with a shell valve seat O-shaped ring 21, a shell valve gasket 9 is arranged between the shell connector body 5 and the shell valve seat 8, the shell valve gasket 9 is in contact with the shell valve seat O-shaped ring 21, and the outer wall of the shell valve gasket 9 is provided with a shell valve gasket O-shaped ring 20.

The outer wall of the shell valve gasket 9 is provided with a shell valve sleeve Y-shaped ring 22, a shell valve sleeve O-shaped ring 18 and a sealing ring 13, one part of the sealing ring 13 is in contact with the shell valve gasket 9, the other part of the sealing ring 13 is in contact with the shell valve core 6, the middle part of the outer wall of the sealing ring 13 is provided with a shell O-shaped ring 24 in a concave mode, the inner wall of the front end of the sealing ring 13 is provided with a shell valve core O-shaped ring 17 in a concave mode, the shell valve core O-shaped ring 17 is in contact with the shell.

When the plug is used, the plug 2 pushes the sealing ring 13 to move inwards, the steel balls 16 lock the retaining grooves, the shell valve core O-shaped ring 17 is sealed and is suitable for high-pressure operation, the pressure of the shell valve sleeve Y-shaped ring is higher, the plug valve core 4 is provided with an inclined hole, a flow channel is opened, the shell valve core nut 19 also plays a supporting role, the front bent part of the shell valve core 6 is in contact with the inclined wall at the front end of the plug 2 to play a sealing role, the flow channel also forms a speed with the inner wall plane and the inclined plane of the plug 2 to form a flow channel, the flow channel is bent and smooth, the outer wall clamping angle of the plug 2 is just matched with the inner wall of the shell 1 in.

It should be understood that the above-mentioned embodiments are merely preferred examples of the present invention, and not restrictive, but rather, all the changes, substitutions, alterations and modifications that come within the spirit and scope of the invention as described above may be made by those skilled in the art, and all the changes, substitutions, alterations and modifications that fall within the scope of the appended claims should be construed as being included in the present invention.

Claims

1. Quick-operation joint, including male joint and female joint, its characterized in that: the male connector comprises a plug (2), a plug connector body (11) is sleeved on the inner wall of the rear portion of the plug (2), a plug valve seat (12) is arranged in the middle of the inner wall of the plug (2), a plug valve core (4) is arranged on the front portion of the inner wall of the plug (2), a plug valve core spring (26) is arranged between the plug valve core (4) and the plug valve seat (12), a stopping groove is arranged on the outer wall of the plug (2), a female connector comprises a shell (1) and an outer sleeve (3), the outer wall of the front portion of the shell (1) is sleeved with the outer sleeve (3), the outer sleeve (3) is connected with a steel ball (16), the steel ball (16) is arranged in a through hole of the shell (1), an outer sleeve spring (10) is arranged between the shell (1) and the outer sleeve (3), a shell connector body (5) is arranged on the inner wall of the rear portion of the shell (, the valve core of the valve is characterized in that a shell valve seat (8) is in contact with a shell valve core nut (19), a shell valve core rod (25) is sleeved on the shell valve core nut (19), the front portion of the shell valve core rod (25) is in contact with a shell valve core (6), a sealing ring (13) is arranged outside the shell valve core (6), the sealing ring (13) is in contact with a shell valve sleeve (15), and a shell valve core spring (23) is arranged between the shell valve core rod (25) and the shell valve sleeve (15).

2. The quick connector of claim 1, wherein: a plug gasket (14) is arranged between the plug (2) and the plug connector body (11), the inner wall of the plug connector body (11) is smooth, the front part of the plug connector body (11) is in contact with a plug valve seat (12), and a plug connector body O-shaped ring (27) is arranged in the plug gasket (14).

3. The quick connector of claim 1, wherein: the inner wall of an opening at the front end of the plug (2) is smooth, an inclined plane is arranged at the rear side of the opening, and a plug valve core (4) is clamped in the inclined plane in a matching mode.

4. The quick connector of claim 1, wherein: and the outer wall of the front part of the plug valve core (4) is provided with a plug valve core O-shaped ring (7).

5. The quick connector of claim 1, wherein: casing disk seat (8) are equipped with in the sunken casing disk seat (8) that are equipped with of casing (1) inner wall rear end, and casing disk seat (8) rear side is equipped with casing disk seat O type circle (21), is equipped with casing valve pad (9) between casing joint body (5) and casing disk seat (8), and casing valve pad (9) and casing disk seat O type circle (21) contact, and casing valve pad (9) outer wall is equipped with casing valve pad O type circle (20).

6. The quick connector of claim 1, wherein: the valve seat is characterized in that a shell valve sleeve Y-shaped ring (22), a shell valve sleeve O-shaped ring (18) and a sealing ring (13) are arranged on the outer wall of the shell valve seat (9), one part of the sealing ring (13) is in contact with the shell valve seat (9), the other part of the sealing ring (13) is in contact with the shell valve core (6), a shell O-shaped ring (24) is arranged in the middle of the outer wall of the sealing ring (13) in a sunken mode, a shell valve core O-shaped ring (17) is arranged in the inner wall of the front end of the sealing ring (13) in a sunken mode, the shell valve core O-shaped ring (17) is in contact with the.