Non-loose one-way pressure relief valve

Abstract

The utility model discloses a one -way pressure relief valve of not easy loosening, including the valve body of hollow, be provided with the threaded portion on the outer surface of valve body, the threaded portion before integral extension has clamping portion, neck and sealing end portion, install rubber gasket on sealing end portion, install metal gasket on rubber gasket, install spring on metal gasket, the bottom of valve cover is pressed by spring, the shape of valve cover is an open cylinder, and the open area is provided with the inward flanging close -up portion, after installation, the close -up portion can stretch into the neck of valve body, and form flexible connection with valve body. The novel structure, the valve cover of relief pressure position is through the close -up portion and is surrounded the neck of valve body, and leaves the gap, and both form flexible connection, even if working in the occasion of vibration, also does not exist the risk of loosening, and the working performance is reliable.

Description

Technical Field

[0001] This utility model relates to the technical field of one-way valves, and in particular to a one-way pressure relief valve that is not easily loosened. Background Technology

[0002] A check valve is a valve that allows fluid to flow only through the inlet, but prevents the medium from flowing back through the outlet. It is also called a non-return valve or non-return valve. It is used in hydraulic systems to prevent the reverse flow of fluids such as oil, or in pneumatic systems to prevent the reverse flow of compressed air.

[0003] One-way balance valves are used in automotive parts such as speed reducers, electric motors, and some hydraulic transmission applications to ensure the normal operation of components such as engines, speed reducers, and electric motors. Traditional one-way valves include spring-loaded one-way valves and ordinary balance valves.

[0004] For example, Chinese patent application number CN202010145420.4, titled "A Temperature Control System for a Permanent Magnet Synchronous Motor in New Energy Vehicles," discloses the technical solution in paragraph

[0045] that "a gas one-way valve B503 is installed at the outlet of the spiral cooling channel 501 to prevent external air from contaminating the inside of the casing." This one-way valve can play a one-way pressure relief role. However, it is installed in a car, and under the long-term vibration and bumps of the car during driving, the threaded connection of the pressure relief part of the one-way valve is a rigid connection, which poses a risk of loosening. This ordinary one-way pressure relief valve needs further improvement. Utility Model Content

[0005] The purpose of this invention is to provide a one-way pressure relief valve that is not easily loosened, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical measures: a one-way pressure relief valve that is not easy to loosen, characterized in that: it includes a hollow valve body, the outer surface of the valve body is provided with a threaded portion, a clamping portion, a neck and a sealing end are integrally extended from the front of the threaded portion, a rubber gasket is installed on the sealing end, a metal gasket is installed on the rubber gasket, a spring is installed on the metal gasket, the spring is pressed by the bottom of the valve cover, the valve cover is shaped as an open cylinder, the open area is provided with an inwardly turned-up constriction portion, after installation, the constriction portion can extend into the neck of the valve body to form a flexible connection with the valve body.

[0007] Compared with the prior art, the advantages of this utility model are: In this new structure, the valve cover of the pressure relief part fits over the neck of the valve body through the constricted part, leaving a gap, and the two form a flexible connection. Even when working in a vibrating and bumpy environment, there is no risk of loosening, and the working performance is reliable.

[0008] As an improvement of this utility model, a protruding sealing rib is integrally formed on the end face of the sealing part of the valve body. The purpose of this design is that this protruding sealing rib allows the rubber gasket to be subjected to greater pressure, thereby improving the sealing performance between the rubber gasket and the valve body.

[0009] As an improvement of this utility model, the metal washer is provided with a grooved ring to stabilize the spring. The purpose of this design is to prevent the spring from shifting during operation, thereby improving the spring's stability.

[0010] As an improvement to this utility model, the rubber gasket and the metal gasket are fitted with the valve cover with a clearance fit. The purpose of this design is to ensure that the rubber gasket and the metal gasket can move freely in the vertical direction within the valve cover, while also preventing them from shifting in the horizontal direction. Attached Figure Description

[0011] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0012] In the attached diagram: Figure 1 This is an exploded view of the non-loosening one-way pressure relief valve described in this utility model.

[0013] Figure 2 This is a cross-sectional view of the non-loosening one-way pressure relief valve described in this utility model.

[0014] Figure 3 This is a cross-sectional view of the valve cover described in this utility model.

[0015] Figure 4 This is a perspective view of the valve body described in this utility model.

[0016] Figure 5 This is a schematic diagram of the metal gasket described in this utility model.

[0017] Figure 6 is a schematic diagram of the installation of the non-loosening one-way pressure relief valve of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Valve body; 2. Threaded part; 3. Clamping part; 4. Neck; 5. Sealing end; 6. Rubber gasket; 7. Metal gasket; 8. Spring; 9. Valve cover; 10. Closure part; 11. Bottom; 12. Sealing rib; 13. Groove ring; 14. Component. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0020] Example 1 Please refer to Figure 1 -6.

[0021] This embodiment provides a non-loosening one-way pressure relief valve, comprising a hollow valve body 1. The outer surface of the valve body 1 is provided with a threaded portion 2. A clamping portion 3, a neck 4, and a sealing end 5 extend integrally from the front of the threaded portion 2. A rubber gasket 6 is installed on the sealing end 5. A metal gasket 7 is installed on the rubber gasket 6. A spring 8 is installed on the metal gasket 7. The spring 8 is pressed by the bottom 11 of the valve cover 9. The valve cover 9 is shaped like an open cylinder. Its open area is provided with an inwardly turned-up constriction portion 10. After installation, the constriction portion 10 can extend into the neck 4 of the valve body 1 to form a flexible connection with the valve body 1.

[0022] In the embodiments of this utility model application, please refer to Figure 4 A protruding sealing rib 12 is integrally formed on the end face of the sealing part of the valve body 1. This protruding sealing rib 12 allows the rubber gasket 6 to be subjected to greater pressure, thereby improving the sealing performance between the rubber gasket 6 and the valve body 1.

[0023] In the embodiments of this utility model application, please refer to Figure 5 The metal washer 7 is provided with a grooved ring 13 to stabilize the spring 8. The grooved ring 13 prevents the spring 8 from shifting during operation, thus improving the stability of the spring 8.

[0024] Preferably, the rubber gasket 6 and the metal gasket 7 are fitted with the valve cover 9 with a clearance fit. This ensures that the rubber gasket 6 and the metal gasket 7 can move freely in the vertical direction within the valve cover 9, while also preventing them from shifting in the horizontal direction.

[0025] This embodiment provides a one-way pressure relief valve that is not easy to loosen. They are connected as follows: the metal gasket 7 and the sealing gasket are pressed against the sealing end 5 of the valve body 1 by the spring 8 inside the valve cover 9. At the same time, the valve cover 9 is fitted onto the neck 4 of the valve body 1 through its constriction part 10, forming a flexible connection (that is, the valve cover 9 can move slightly).

[0026] This embodiment provides a one-way pressure relief valve that is not easily loosened. For normal use, please refer to... Figure 6The threaded part 2 of the valve body 1 is threaded onto the threaded hole of the component 14 (such as a sealing container). The valve cover 9 serves as a pressure relief part. When the internal air pressure is greater than the external air pressure, it will push open the rubber gasket 6. The high-pressure gas flows out from the opening gap of the rubber gasket 6 and then from the closing part 10 at the valve cover 9 until the internal and external air pressures are balanced.

[0027] This embodiment provides a non-loosening one-way pressure relief valve, primarily used to relieve pressure in a cavity while preventing the intrusion of particles, water, oil, and other liquids. Suitable for transmission systems and drivetrain components, it features a compact design and offers numerous superior performance characteristics. It easily addresses the various challenges in designing, validating, installing, and protecting transmission systems and components. It effectively balances cavity pressure under normal and extreme operating conditions, maintains the sealing system, prevents oil leakage, and thus avoids stress damage to the seals, extending service life.

[0028] Waterproof and breathable function: Allows gas to pass through, balancing the pressure difference between the inside and outside of the equipment; effectively prevents sealing failure caused by internal and external pressure differences due to temperature changes and altitude changes.

[0029] Protective function: Prevents dust, water, and liquids from penetrating, effectively protecting the internal structure of electronic components from corrosion.

[0030] Application areas: High-pressure oil-cooled motors, high-speed reducers, hybrid unit systems, multi-purpose range extenders, electric drive axles, etc.

[0031] The beneficial effects of this utility model are as follows: In this new structure, the valve cover of the pressure relief part fits over the neck of the valve body through the constricted part, leaving a gap, and the two form a flexible connection. Even when working in a vibrating and bumpy environment, there is no risk of loosening, and the working performance is reliable.

[0032] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A non-loose one-way pressure relief valve, characterized by: The valve body (1) is hollow and has a threaded portion (2) on its outer surface. The threaded portion (2) has a clamping portion (3), a neck (4) and a sealing end (5) extending integrally from its front. A rubber gasket (6) is installed on the sealing end (5). A metal gasket (7) is installed on the rubber gasket (6). A spring (8) is installed on the metal gasket (7). The spring (8) is pressed by the bottom (11) of the valve cover (9). The valve cover (9) is shaped like an open cylinder. Its open area has an inwardly turned-out constriction portion (10). After installation, the constriction portion (10) can extend into the neck (4) of the valve body (1) and form a flexible connection with the valve body (1).

2. The non-loosening one-way pressure relief valve according to claim 1, characterized by: A protruding sealing rib (12) is integrally provided on the end face of the sealing part of the valve body (1).

3. The non-loosening one-way pressure relief valve according to claim 1, characterized in that: The metal gasket (7) is provided with a groove (13) to stabilize the spring (8).

4. The non-loosening one-way pressure relief valve according to claim 1, characterized by: The rubber gasket (6) and the metal gasket (7) are fitted with the valve cover (9) with clearance.

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