CN113738977A

CN113738977A - A hydraulic quick connector

Info

Publication number: CN113738977A
Application number: CN202110904798.2A
Authority: CN
Inventors: 楼仲宇; 楼焕银; 童超; 薛大伟
Original assignee: Zhejiang Songqiao Pneumatic And Hydraulic Co ltd
Current assignee: Zhejiang Songqiao Pneumatic And Hydraulic Co ltd
Priority date: 2021-08-07
Filing date: 2021-08-07
Publication date: 2021-12-03

Abstract

The invention relates to a quick disassembly and assembly connection device, in particular to a hydraulic quick connector. A hydraulic quick connector, a shell, a plug, a jacket, a steel ball and a jacket spring, including a male connector and a female connector, the male connector includes a plug, the rear inner wall of the plug is provided with a valve seat a, and the front of the inner wall of the plug is provided with a valve core a. There is a valve core spring a between the valve seat a and the valve core a, and the inclined surface c is in contact with the inclined surface a. The female joint includes a casing and an outer casing. The outer wall of the front of the casing is covered with a casing. In the body through hole, a casing spring is arranged between the casing and the outer casing, a bayonet is formed inward in the middle of the inner wall of the casing, and a valve seat b is arranged on the inner wall of the rear part of the casing. The advantages of the present invention: novel structure, ingenious and simple design, the ejector rod is also a valve core rod, large cross-sectional area, increased flow, low cost of the giant sealing ring, also used for positioning and axial fixation, the giant sealing ring is open There is a rectangular groove, which is convenient for labor saving and improves the performance parameters of the quick connector.

Description

Hydraulic quick joint

Technical Field

The invention relates to a connecting device capable of being quickly disassembled and assembled, in particular to a hydraulic 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 comprises a female connector and a male connector, the existing design is complex and the flow is small, and the use effect and the use safety of the quick connector can be influenced.

Disclosure of Invention

In order to solve the technical problems of complex design and small flow, the invention provides a hydraulic quick joint.

The technical scheme of the invention is as follows:

a hydraulic quick joint comprises a shell, a plug, an outer sleeve, a steel ball and an outer sleeve spring, wherein the male joint comprises a plug, the plug is formed by connecting a plug front section and a plug rear section, the diameter of the plug front section is smaller than that of the plug rear section, a stopping groove is formed in the middle of the outer wall of the plug front section, the inner wall of the plug front section is smooth, a convex ring is arranged in front of the plug rear section, an inclined plane a and a blocking plane a are arranged between the plug front section and the inner wall of the plug rear section, a valve core a is arranged in front of the inner wall of the plug, the valve core a comprises a valve core rod a, a connecting body a and a top rod a, the valve core rod a is positioned in the valve seat a, the outer wall of the connecting body a is provided with an inclined plane b and an inclined plane c, the middle of the two inclined planes is sunken, a valve core sealing ring a is arranged in the sunken position, a valve core spring a is arranged between the valve seat a and the valve core a, the inclined plane c is contacted with the inclined plane a, the female joint comprises a shell and an outer sleeve, the outer wall of the front portion of the shell is sleeved with an outer sleeve, the outer sleeve is connected with the steel balls, the steel balls are arranged in through holes of the shell, an outer sleeve spring is arranged between the shell and the outer sleeve, a bayonet is formed in the middle of the inner wall of the shell inwards, the inner side of the bayonet and the inner wall of the outer wall are in a right-angle shape, the bayonet is provided with an inclined plane d, the inner wall of the rear portion of the shell is provided with a valve seat b, a valve core b is arranged in the middle of the inner wall of the shell, the valve core b comprises a valve core rod b, a connector b and an ejector rod b, the valve core rod b is located in the valve seat b, the outer wall of the connector b is provided with an inclined plane e and an inclined plane f, the middle of the two inclined planes is sunken, a valve core sealing ring b is arranged in the sunken position, the valve core spring b is arranged between the valve seat b and the valve core b, and the inclined plane d is in contact with the inclined plane e.

And a valve seat retaining ring a is arranged on the outer side of the valve seat a.

The rear end of the plug is provided with a nylon cushion a.

And a giant sealing ring is arranged outside the bayonet.

And an outer sleeve retainer ring is arranged on the outer side of the outer sleeve.

By using the technical scheme of the invention, the structure is novel, the design is ingenious and simple, the ejector rod is also a valve core rod, the cross section area is large, the flow is increased, the cost of the giant sealing ring is low, the giant sealing ring is also used for positioning and axial fixing, the rectangular groove is formed in the giant sealing ring, the labor is saved, and the performance parameters of the quick connector are improved; simple processing, convenient and fast connection, high strength and defacement resistance.

Drawings

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

FIG. 2 is a schematic view of the structure of the female joint in the present invention;

fig. 3 is a schematic view of the structure of the male connector of the present invention.

Detailed Description

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

Examples

As shown in fig. 1, 2 and 3, a hydraulic quick coupling comprises a housing 1, a plug 2, an outer sleeve 3, a steel ball 8 and an outer sleeve spring 9, wherein the housing comprises a male coupling and a female coupling, the male coupling comprises the plug 2, the plug 2 is formed by connecting a plug front section and a plug rear section, the diameter of the plug front section is smaller than that of the plug rear section, a stopping groove is arranged in the middle of the outer wall of the plug front section, the inner wall of the plug front section is smooth, a convex ring is arranged in the front of the plug rear section, an inclined plane a and a stopping surface a are arranged between the plug front section and the inner wall of the plug rear section, a valve seat a is arranged on the inner wall of the plug 2, a valve core a is arranged on the front of the inner wall of the plug 2, the valve core a comprises a valve core rod a, a connecting body a and a push rod a, the outer wall of the connecting body a is provided with an inclined plane b and an inclined plane c, the middle of the two inclined planes is sunken, a valve core sealing ring a is arranged on the sunken position, a valve core spring a is arranged between the valve seat a and the valve core a spring a, inclined plane c and inclined plane a contact, the box end includes casing 1 and overcoat 3, casing 1 front portion outer wall cover has overcoat 3, overcoat 3 is connected with steel ball 8, steel ball 8 is in 1 through-hole of casing, be equipped with overcoat spring 9 between casing 1 and the overcoat 3, casing 1 inner wall middle part inwards forms the bayonet socket, bayonet socket inboard and outer wall inner wall are the right angle form, the bayonet socket is equipped with inclined plane d, casing 1 rear portion inner wall is equipped with disk seat b5, casing 1 inner wall middle part is equipped with case b4, case b4 includes case pole b, connector b and ejector pin b, case pole b is located disk seat b, connector b outer wall is equipped with inclined plane e and inclined plane f, the middle sunken of two inclined planes, the sunken department is equipped with case sealing washer b7, be equipped with case spring b12 between disk seat b and the case b, inclined plane d and inclined plane e contact.

The rear end of the plug 2 is provided with a nylon pad a 13.

And a giant sealing ring 6 is arranged outside the bayonet.

And an outer sleeve retainer ring 10 is arranged on the outer side of the outer sleeve.

When the plug is used, usually, the valve seat a or the valve seat b is installed at the middle position, the valve seat a and the valve seat b are close to the rear end part, the plug 2 does not need to be connected with a connector body, parts are reduced, the cost is reduced, the inner wall of the plug 2 is smooth and better than the inner wall of the plug in the past, the installation position of the shell valve seat check ring a is processed at a critical opening, the plug is fixed by the nylon cushion a13, the right angle of a contact part is right-angled and right-angled, the plug is tightly attached to the plug and protected, the operation is convenient, the valve seat a and the valve seat b are annularly provided with the through holes, the diameter of the front section of the plug 2 is smaller than that of the rear section of the plug, the flow speed is high, the ejector rod is opposite to the ejector rod, the diameter of the ejector rod is small, the flow area is large, the giant sealing ring 6 plays a role of sealing and limiting, is convenient to replace, the effect is ideal, and the circular truncated cones are arranged at the rear sides of the connector a and the connector a connector b, and play a limiting role.

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. The utility model provides a hydraulic pressure quick-operation joint, casing (1), plug (2), overcoat (3), steel ball (8) and overcoat spring (9), including male joint and female joint, its characterized in that: the male joint comprises a plug (2), the plug (2) is formed by connecting a plug front section and a plug rear section, the diameter of the plug front section is smaller than that of the plug rear section, a retaining groove is formed in the middle of the outer wall of the plug front section, the inner wall of the plug front section is smooth, a convex ring is arranged in the front of the plug rear section, an inclined plane a and a blocking surface a are arranged between the plug front section and the inner wall of the plug rear section, a valve seat a is arranged on the inner wall of the rear part of the plug (2), a valve core a is arranged in the front of the inner wall of the plug (2), the valve core a comprises a valve core rod a, a connecting body a and a push rod a, the valve core rod a is positioned in the valve seat a, the outer wall of the connecting body a is provided with an inclined plane b and an inclined plane c, the middle of the two inclined planes is sunken, a valve core sealing ring a is arranged in the sunken position, a valve core spring a is arranged between the valve seat a and the valve core a, the inclined plane c is contacted with the inclined plane a, the female joint comprises a shell (1) and an outer sleeve (3), and an outer sleeve (3) is sleeved on the outer wall of the front part of the shell (1), overcoat (3) are connected with steel ball (8), steel ball (8) are in casing (1) through-hole, be equipped with between casing (1) and overcoat (3) overcoat spring (9), casing (1) inner wall middle part inwards forms the bayonet socket, the bayonet socket inboard is the right angle form with the outer wall inner wall, the bayonet socket is equipped with inclined plane d, casing (1) rear portion inner wall is equipped with disk seat b (5), casing (1) inner wall middle part is equipped with case b (4), case b (4) include case pole b, connector b and ejector pin b, case pole b is arranged in disk seat b, connector b outer wall is equipped with inclined plane e and inclined plane f, two department inclined planes middle sunken, the sunken department is equipped with case sealing washer b (7), be equipped with case spring b (12) between disk seat b and the case b, inclined plane d and inclined plane e contact.

2. The hydraulic quick connector as recited in claim 1, wherein: and a valve seat retaining ring a is arranged on the outer side of the valve seat a.

3. The hydraulic quick connector as recited in claim 1, wherein: the rear end of the plug (2) is provided with a nylon cushion a (13) of a photographic ball.

4. The hydraulic quick connector as recited in claim 1, wherein: and a giant sealing ring (6) is arranged outside the bayonet.

5. The hydraulic quick connector as recited in claim 1, wherein: and an outer sleeve retainer ring (10) is arranged on the outer side of the outer sleeve.