CN221423970U

CN221423970U - High-pressure-resistant one-way inflation valve

Info

Publication number: CN221423970U
Application number: CN202323161290.1U
Authority: CN
Inventors: 张旭光; 宁建宇; 杜明; 王力
Original assignee: Qingdao Lingzhen Technology Development Co ltd
Current assignee: Qingdao Lingzhen Technology Development Co ltd
Priority date: 2023-11-22
Filing date: 2023-11-22
Publication date: 2024-07-26
Anticipated expiration: 2033-11-22

Abstract

The utility model discloses a high-pressure-resistant one-way inflation valve, which comprises a one-way valve body and a one-way valve sleeve, wherein the one-way valve sleeve is in threaded connection with the inside of the one-way valve body, one side of an inner cavity of the one-way valve body is fixedly connected with a spring, and one end of the spring is fixedly connected with a one-way valve core matched with an outlet end of the one-way valve sleeve for use. According to the high-pressure-resistant one-way inflation valve, the one-way valve sleeve is arranged on the inner thread of the one-way valve body, the spring is arranged in the one-way valve body and can be conveniently exposed through the thread separation of the one-way valve body and the one-way valve sleeve, so that the one-way valve can be conveniently detached and replaced, and the sealing mechanism is arranged among the one-way valve body, the one-way valve core and the one-way valve sleeve, so that integral air tightness of equipment can be further improved.

Description

High-pressure-resistant one-way inflation valve

Technical Field

The utility model relates to the technical field of one-way inflation valves, in particular to a high-pressure-resistant one-way inflation valve.

Background

One-way valves are also known as check valves or non-return valves. A one-way valve is a component in which medium can only flow in from an inlet and flow out from an outlet, but cannot flow back. Check valves are commonly used in hydraulic systems to prevent reverse flow of oil flow or in pneumatic systems to prevent reverse flow of compressed air. The check valve is divided into a straight-through type valve and a right-angle type valve according to a medium flow path, and is divided into a ball valve and a cone valve according to a valve core structure.

The check valve generally consists of a valve core, a valve body, a valve seat, a spring and other structures. When the medium flows in from the inlet, the medium overcomes the spring force by virtue of the pressure of the medium to push the valve core open, so that the one-way valve is conducted, and a medium flowing passage is formed; when the medium flows in from the outlet or the medium does not flow continuously from the outlet, the medium pressure presses the valve core against the valve seat, at the moment, the medium flowing passage is closed, and the one-way valve is in a cut-off state. The typical requirements for a one-way valve are: the opening pressure is small, the reverse sealing performance is good, the forward flow resistance is small, and the action is sensitive.

The existing one-way valve has poor sealing performance and inconvenient spring replacement, so that the problem is avoided, and the high-pressure-resistant one-way inflation valve is provided to solve the existing problem.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides the high-pressure-resistant one-way inflation valve, which solves the problems of poor sealing property and inconvenient replacement of a spring of the one-way valve.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the high-pressure resistant one-way inflation valve comprises a one-way valve body and a one-way valve sleeve, wherein the one-way valve sleeve is in threaded connection with the inside of the one-way valve body, one side of the inner cavity of the one-way valve body is fixedly connected with a spring, one end of the spring is fixedly connected with a check valve core which is matched with the outlet end of the check valve sleeve, and a sealing mechanism is arranged among the check valve core, the check valve sleeve and the check valve body.

Preferably, the sealing mechanism comprises a first valve core sealing ring and a second valve core sealing ring, the first valve core sealing ring and the second valve core sealing ring are fixedly arranged on the outer wall of the one-way valve core, one side of the one-way valve sleeve is fixedly connected with a first valve sleeve sealing ring matched with the side wall of the one-way valve body, and the outer surface of the one-way valve sleeve is fixedly connected with a second valve sleeve sealing ring matched with the inner surface of the one-way valve body.

Preferably, the inside thread connection of check valve pocket has the joint of ventilating, the surface fixedly connected with of the joint of ventilating is with the external seal circle that matches the check valve pocket internal surface and use.

Preferably, the inner wall of the ventilation joint is fixedly connected with a first inner sealing ring, and the inner wall of the ventilation joint is fixedly connected with a second inner sealing ring at one side of the first inner sealing ring.

Preferably, the outer surface of the check valve body is fixedly connected with a valve body sealing ring.

Advantageous effects

The utility model provides a high-pressure-resistant one-way inflation valve. Compared with the prior art, the method has the following beneficial effects: according to the utility model, the check valve sleeve is arranged on the inner thread of the check valve body, so that the spring arranged in the check valve body can be separated through the threads of the check valve body and the check valve sleeve, and is convenient to expose, so that the check valve body, the check valve core and the check valve sleeve can be detached and replaced later, and the sealing mechanism is arranged among the check valve body, the check valve core and the check valve sleeve, so that the integral air seal of the equipment can be further improved.

Drawings

FIG. 1 is a schematic view of the external structure of the present utility model;

fig. 2 is a cross-sectional view of the structure of the valve body of the check valve of the present utility model.

In the figure: 1. a check valve body; 2. a check valve core; 5. a spring; 6. a check valve housing; 9. a sealing mechanism; 3. a first valve core sealing ring; 4. a second valve core sealing ring; 7. a first valve sleeve seal ring; 8. a second valve sleeve seal ring; 10. a vent fitting; 11. an outer seal ring; 12. a first inner seal ring; 13. a second inner seal ring; 14. and a valve body sealing ring.

Detailed Description

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

Referring to fig. 1-2, the present utility model provides a technical solution: the utility model provides a high pressure resistant check valve, includes check valve body 1 and check valve housing 6, and check valve housing 6 threaded connection is in the inside of check valve body 1, and one side fixedly connected with spring 5 of check valve body 1 inner chamber, the one end fixedly connected with of spring 5 and check valve case 2 that matches the matched use with check valve housing 6 outlet end, the surface fixedly connected with valve body sealing washer 14 of check valve body 1.

Further, in order to improve the sealing effect of the check valve body 1, the check valve core 2 and the check valve sleeve 6, a sealing mechanism 9 is arranged among the check valve core 2, the check valve sleeve 6 and the check valve body 1, the sealing mechanism 9 comprises a first valve core sealing ring 3 and a second valve core sealing ring 4, the first valve core sealing ring 3 and the second valve core sealing ring 4 are fixedly arranged on the outer wall of the check valve core 2, one side of the check valve sleeve 6 is fixedly connected with a first valve sleeve sealing ring 7 matched with the side wall of the check valve body 1, and the outer surface of the check valve sleeve 6 is fixedly connected with a second valve sleeve sealing ring 8 matched with the inner surface of the check valve body 1.

Wherein, in order to improve the sealing effect of the ventilation joint 10 and the check valve sleeve 6, the ventilation joint 10 is connected with the internal thread of the check valve sleeve 6, the surface of the ventilation joint 10 is fixedly connected with an outer sealing ring 11 matched with the inner surface of the check valve sleeve 6, the inner wall of the ventilation joint 10 is fixedly connected with a first inner sealing ring 12, and the inner wall of the ventilation joint 10 is fixedly connected with a second inner sealing ring 13 which is positioned on one side of the first inner sealing ring 12.

During installation, the ventilation connector 10 is screwed into the one-way valve sleeve 6, the one-way valve sleeve 6 is screwed into the one-way valve body 1, the one-way valve body 1 is installed at the gas transmission interface, the external gas source plug is connected with the ventilation connector 10, the ventilation connector 10 and the interior of the one-way valve sleeve 6 are inflated, the air pressure rises to elastically push the one-way valve core 2 open, and then the subsequent gas is enabled to enter the one-way valve body 1.

Claims

1. The utility model provides a high pressure resistant check valve, includes check valve body (1) and check valve pocket (6), check valve pocket (6) threaded connection is in the inside of check valve body (1), its characterized in that: one side fixedly connected with spring (5) of check valve body (1) inner chamber, one end fixedly connected with of spring (5) matches check valve case (2) that use with check valve pocket (6) exit end, be provided with sealing mechanism (9) between check valve case (2), check valve pocket (6) and the check valve body (1).

2. The high pressure resistant one-way inflation valve of claim 1, wherein: the sealing mechanism (9) comprises a first valve core sealing ring (3) and a second valve core sealing ring (4), the first valve core sealing ring (3) and the second valve core sealing ring (4) are fixedly arranged on the outer wall of the one-way valve core (2), one side of the one-way valve sleeve (6) is fixedly connected with a first valve sleeve sealing ring (7) matched with the side wall of the one-way valve body (1), and the outer surface of the one-way valve sleeve (6) is fixedly connected with a second valve sleeve sealing ring (8) matched with the inner surface of the one-way valve body (1).

3. The high pressure resistant one-way inflation valve of claim 1, wherein: the inside threaded connection of check valve pocket (6) has ventilation joint (10), the surface fixed connection who ventilates joint (10) has outer sealing washer (11) that use with check valve pocket (6) internal surface matched with.

4. A high pressure resistant one-way inflation valve as recited in claim 3, wherein: the inner wall of the ventilation joint (10) is fixedly connected with a first inner sealing ring (12), and one side of the ventilation joint (10) located on the first inner sealing ring (12) is fixedly connected with a second inner sealing ring (13).

5. The high pressure resistant one-way inflation valve of claim 1, wherein: the outer surface of the one-way valve body (1) is fixedly connected with a valve body sealing ring (14).