CN219549696U

CN219549696U - Automobile pressure relief valve

Info

Publication number: CN219549696U
Application number: CN202320527991.3U
Authority: CN
Inventors: 孙国泰; 张海峰
Original assignee: Hubei Waterwei Automotive Electronics Co ltd
Current assignee: Hubei Waterwei Automotive Electronics Co ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-08-18
Anticipated expiration: 2033-03-17

Abstract

The utility model relates to the technical field of pressure relief equipment, in particular to an automobile pressure relief valve, which comprises a valve body, wherein a valve core is arranged in the valve body, a plug is arranged at the top of the valve body, a slot is arranged at the bottom of the plug, the top of the valve core can lift and slide in the slot, a spring is sleeved outside the valve core, the bottom end of the spring is positioned on the upper surface of the bottom end of the valve core, the top end of the spring is positioned on the lower surface of the top of the plug, a joint is arranged at one side of the valve body, threaded holes are arranged at two sides of the top of the valve body, and a top cone screw is connected in a threaded manner. In this car relief valve, through the change of entry pressure, feed back to case and spring, when valve body entry pressure is higher than the elasticity of spring, promote the case upwards, the valve body opens, makes the inside pressure of pipeline can keep safe stable state, once the superpressure, can in time reveal, resumes sealing state under the spring effect after the pressure release. The magnitude of the pressure relief pressure can be adjusted by adjusting the precession degree of the plug, and the plug is convenient and flexible to use.

Description

Automobile pressure relief valve

Technical Field

The utility model relates to the technical field of pressure relief equipment, in particular to an automobile pressure relief valve.

Background

The pressure relief valve is used as an important part on the automobile, and can play a role in opening the valve plate to release the internal air pressure when the difference between the internal air pressure of the automobile and the external automobile reaches a critical value. The conventional pressure relief valve for the vehicle has no flow blocking design, so that the pressure relief function is only realized when the door is closed, and in the acceleration process, exhaust air flow and air flow generated on the windward side of the vehicle can enter the vehicle through the opened pressure relief valve plate.

Patent publication number CN111609185a discloses a pressure relief valve for a vehicle, comprising a valve body and a flow blocking cover; the flow blocking cover is a frame type and is positioned on one side of the valve body for enabling the internal air flow to flow out, and the flow blocking cover surrounds the periphery of the valve body; the flow blocking cover comprises a first guide part which is positioned at the bottom of the valve body and can reflect air flow to the periphery, a water leakage port is arranged at the bottom of the first guide part, and the water leakage port is used for discharging accumulated water in the first guide part. According to the pressure release valve for the vehicle and the vehicle, the frame type flow blocking cover which surrounds the periphery of the valve body is arranged on one side, which enables internal air flow to flow out, of the valve body, and the first guide part which can reflect the air flow to the periphery is arranged on the flow blocking cover and is positioned at the bottom of the valve body, so that the problem that wind noise, road noise or exhaust air flow is directly transmitted into the vehicle through the pressure release valve for the vehicle in the vehicle acceleration process can be solved through the semi-surrounding design.

Although the technical scheme occupies small space, the driving texture in the vehicle is greatly improved, the pressure is not convenient to automatically release, the pressure of the released pressure is not convenient to adjust according to the requirement, and the vehicle is not convenient to flexibly use.

Disclosure of Invention

The utility model aims to provide an automobile pressure relief valve, which solves the problems that the automatic pressure relief is inconvenient, the pressure of the pressure relief is inconvenient to adjust according to the needs, and the flexible use of a vehicle is inconvenient.

In order to achieve the above purpose, the utility model provides the automobile pressure relief valve, which comprises a valve body, wherein a valve core is arranged in the valve body, a plug is arranged at the top of the valve body, a slot is arranged at the bottom of the plug, the top of the valve core can lift and slide in the slot, a spring is sleeved outside the valve core, the bottom end of the spring is positioned on the upper surface of the bottom end of the valve core, the top end of the spring is positioned on the lower surface of the top of the plug, a joint is arranged on one side of the valve body, threaded holes are formed in two sides of the top of the valve body, a tip cone screw is connected with threads, and one end of the tip cone screw can compress and fix the side face of the plug.

Preferably, an inlet is formed in the bottom of the valve body, and an outlet is formed in the outer end of the joint.

Preferably, an annular clamping groove is formed in the bottom end of the valve core, a square sealing ring is arranged in the clamping groove, and the square sealing ring seals between the bottom end of the valve core and the inner wall of an inlet of the valve body.

Preferably, an annular groove is formed in the outer side of the bottom of the plug, an O-shaped ring is arranged in the annular groove, and the O-shaped ring seals between the outer side of the bottom of the plug and the inner wall of the top of the valve body.

Preferably, the joint end is provided with a lug which is integrally formed at the position close to the outer wall of the valve body, and a sealing gasket is arranged between the side wall of the lug and the outer wall of the valve body.

Preferably, the top of the valve body is in threaded connection with the plug, and one side of the valve body is in threaded connection with the joint.

Preferably, a cross groove is formed in the top of the plug.

Compared with the prior art, the utility model has the beneficial effects that:

1. in this car relief valve, through the change of entry pressure, feed back to case and spring, when valve body entry pressure is higher than the elasticity of spring, promote the case upwards, the valve body opens, makes the inside pressure of pipeline can keep safe stable state, once the superpressure, can in time reveal, resumes sealing state under the spring effect after the pressure release.

2. In this car relief valve, through the precession degree of adjusting the end cap, just can adjust the size of relief pressure, convenient nimble use.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;

fig. 3 is a schematic view of the internal structure of the present utility model.

The meaning of each reference sign in the figure is:

1. a valve body; 11. an inlet; 2. a valve core; 3. a joint; 31. an outlet; 4. a spring; 5. a plug; 6. a square sealing ring; 7. an O-ring; 8. a sealing gasket; 9. a top cone screw.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides an automobile pressure relief valve, as shown in figures 1-3, which comprises a valve body 1, wherein a valve core 2 is arranged in the valve body 1, a plug 5 is arranged at the top of the valve body 1, a slot is arranged at the bottom of the plug 5, the top of the valve core 2 can lift and slide in the slot, a spring 4 is sleeved outside the valve core 2, the bottom end of the spring 4 is positioned on the upper surface of the bottom end of the valve core 2, the top end of the spring 4 is positioned on the lower surface of the top of the plug 5, a joint 3 is arranged at one side of the valve body 1, threaded holes are arranged at two sides of the top of the valve body 1, a tip cone screw 9 is connected with threads, one end of the tip cone screw 9 can tightly press and fix the side face of the plug 5, the tip cone screw 9 ensures that the plug 5 is fixed, and cannot loosen in use, when the inlet pressure of the valve body 1 is higher than the elasticity of the spring 4, the valve core 2 is pushed upwards, the valve body 1 is opened, so that the pressure in a pipeline can keep a safe and stable state, and once overpressure can be leaked in time.

In this embodiment, the bottom of the valve body 1 is provided with an inlet 11 and the outer end of the fitting 3 is provided with an outlet 31 for the passage of gas.

Specifically, the bottom of case 2 is provided with annular draw-in groove, and the draw-in groove is inside to be provided with square sealing washer 6, and square sealing washer 6 seals between the bottom of case 2 and the entry 11 inner wall of valve body 1, guarantees the leakproofness of junction between valve body 1 and the case 2.

Further, the outer side of the bottom of the plug 5 is provided with an annular groove, an O-shaped ring 7,O-shaped ring 7 is arranged in the annular groove to seal the outer side of the bottom of the plug 5 and the inner wall of the top of the valve body 1, and the tightness of the joint between the valve body 1 and the plug 5 is ensured.

Further, the end of the joint 3 is close to the outer wall of the valve body 1, a bump is integrally formed, and a sealing gasket 8 is arranged between the side wall of the bump and the outer wall of the valve body 1 and used for guaranteeing tightness between the joint 3 and the valve body 1.

Further, the top of the valve body 1 is in threaded connection with the plug 5, and one side of the valve body 1 is in threaded connection with the joint 3, so that the plug 5 and the joint 3 can be conveniently installed and detached.

Further, the top of the plug 5 is provided with the cross groove, so that screwing is conveniently performed through a cross screwdriver, the degree of the plug 5 entering the valve body 1 downwards is adjusted, and the pressure of pressure relief can be adjusted.

When the automobile pressure relief valve is used, firstly, the device is assembled, the valve core 2 is arranged in the valve body 1, the top is pressed and fixed through the mounting plug 5, the plug 5 is propped against and fixed through the tip cone screw 9, the spring 4 is sleeved outside the valve core 2, the square sealing ring 6 is arranged at the bottom of the valve core 2, the O-shaped ring 7 is arranged outside the bottom of the plug 5, the sealing of the valve body 1 is ensured, the joint 3 end is arranged at one side of the valve body 1, the sealing gasket 8 is arranged at the gap between the joint 3 and the valve body 1, and then the assembled pressure relief valve is arranged at the position where the automobile needs pressure relief;

the pressure relief valve is fed back to the valve core 2 and the spring 4 through the change of the pressure of the inlet 11, when the pressure of the inlet 11 of the valve body 1 is higher than the elasticity of the spring 4, the valve core 2 is pushed upwards, a channel of the valve body 1 is opened, the pressure inside a pipeline can be kept in a safe and stable state, once the pressure is exceeded, the pressure can be timely leaked, the sealing state can be automatically restored under the action of the spring 4 after the pressure relief, the size of the pressure relief pressure can be adjusted through adjusting the precession degree of the plug 5, and the pressure relief valve can work continuously after the pressure relief without replacing parts, so that the pressure relief valve is convenient to use.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An automobile pressure release valve, comprising a valve body (1), characterized in that: the inside of valve body (1) is provided with case (2), end cap (5) are installed at the top of valve body (1), the bottom of end cap (5) is provided with the slot, the top of case (2) can go up and down to slide in the slot, the outside cover of case (2) is equipped with spring (4), the bottom of spring (4) is located the bottom upper surface of case (2), the top of spring (4) is located the top lower surface of end cap (5), joint (3) are installed to one side of valve body (1), the top both sides of valve body (1) are provided with the screw hole, and threaded connection has tip cone screw (9), the side of end cap screw (9) can compress tightly fixedly.

2. The automotive pressure relief valve according to claim 1, wherein: the bottom of the valve body (1) is provided with an inlet (11), and the outer end of the joint (3) is provided with an outlet (31).

3. The automotive pressure relief valve according to claim 1, wherein: the bottom of case (2) is provided with annular draw-in groove, and the draw-in groove is inside to be provided with square sealing washer (6), seal between the entry (11) inner wall of the bottom of case (2) and valve body (1) square sealing washer (6).

4. The automotive pressure relief valve according to claim 1, wherein: an annular groove is formed in the outer side of the bottom of the plug (5), an O-shaped ring (7) is arranged in the annular groove, and the O-shaped ring (7) seals between the outer side of the bottom of the plug (5) and the inner wall of the top of the valve body (1).

5. The automotive pressure relief valve according to claim 1, wherein: the end of the joint (3) is close to the outer wall of the valve body (1) and is provided with a lug integrally, and a sealing gasket (8) is arranged between the side wall of the lug and the outer wall of the valve body (1).

6. The automotive pressure relief valve according to claim 1, wherein: the top of the valve body (1) is in threaded connection with the plug (5), and one side of the valve body (1) is in threaded connection with the joint (3).

7. The automotive pressure relief valve according to claim 1, wherein: the top of the plug (5) is provided with a cross groove.