CN216280649U - Drain valve for automobile gas storage tank - Google Patents
Drain valve for automobile gas storage tank Download PDFInfo
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- CN216280649U CN216280649U CN202122719866.6U CN202122719866U CN216280649U CN 216280649 U CN216280649 U CN 216280649U CN 202122719866 U CN202122719866 U CN 202122719866U CN 216280649 U CN216280649 U CN 216280649U
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Abstract
The utility model provides a drain valve for an automobile air storage tank, and relates to the technical field of air pressure type braking systems; the drain valve comprises a valve body, and a valve cover is arranged at the lower end of the valve body; the top end of the valve body is provided with a ventilation joint; the upper end of the air joint is connected with an air storage tank, and the lower end of the air joint is communicated with a first air chamber in the valve body; the outer ring of the first air chamber is provided with an annular second air chamber; the lower end of the first air chamber is provided with an elastic sealing diaphragm; the elastic sealing membrane comprises a top membrane at the top and a shell-shaped inner membrane with a funnel-shaped sealing structure at the bottom; the lower end of the top film is provided with a spring gasket; a spring is arranged between the spring gasket and the valve cover. The drain valve has an automatic draining function, and manual operation is not needed; the filter screen is arranged, so that oil contamination impurities can be prevented from entering the valve body to cause product damage; and is provided with a performance detection structure; the performance of the drain valve can be detected by operating the push rod.
Description
Technical Field
The utility model relates to the technical field of air pressure type brake systems, in particular to a drain valve for an automobile air storage tank.
Background
In the pneumatic brake system, impurities such as condensed water and oil stains in a pipeline are important factors influencing the braking energy absorption. Condensed water and oil dirt enter the valve body, so that the braking element is rusted, corroded and damaged; thereby causing malfunction of the operation. Particularly in cold northern areas, the frozen condensed water partially blocks pipelines and breaks down; in the wet south, the volume of the air storage tank is influenced due to excessive water accumulation, so that the braking air quantity of the automobile is insufficient, and accidents are caused.
The existing technical scheme is that a manual drain valve is installed at the bottom of the gas storage tank, and the drain valve is in a joint shape and is provided with a pull ring. The operator opens the drain valve manually at regular intervals, and accumulated water at the bottom of the gas storage tank is discharged under the action of gravity and the pressure of high-pressure gas.
The manual drain valve does not have the automatic draining function, needs to be operated manually at regular intervals, is inconvenient to use and is easy to damage.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a drain valve for an automobile air storage tank, which aims to solve the technical problem.
In order to achieve the aim, the drain valve for the automobile air storage tank comprises a valve body, wherein a valve cover is arranged at the lower end of the valve body; the top end of the valve body is provided with a ventilation joint; the upper end of the air joint is connected with an air storage tank, and the lower end of the air joint is communicated with a first air chamber in the valve body; the outer ring of the first air chamber is provided with an annular second air chamber; the lower end of the first air chamber is provided with an elastic sealing diaphragm; the elastic sealing membrane comprises a top membrane at the top and a shell-shaped inner membrane with a funnel-shaped sealing structure at the bottom; the lower end of the top film is provided with a spring gasket; a spring is arranged between the spring gasket and the valve cover; under the action of the elastic force of the spring, the upper end of the top film is attached to the lower end opening of the first air chamber and seals the first air chamber, and the upper end of the valve cover is provided with a slot; the lower end of the slot is provided with a water outlet; the lower end of the shell-shaped inner membrane extends into the slot and seals the water outlet; a first drainage channel is reserved between the shell-shaped inner membrane and the side wall of the slot; the space above the valve cover is communicated with the second air chamber.
Preferably, the elastic sealing membrane is made of elastic rubber.
Preferably, the lower end of the top film is provided with a gasket groove; the spring gasket is installed in the gasket groove.
Further, the shell-shaped inner film comprises a first conical surface inner film, a second conical surface inner film, a ring-shaped inner film and a conical bottom film from top to bottom; the annular inner film is positioned in the slot; the cone-shaped bottom membrane is positioned at the upper end of the water outlet and seals the water outlet.
Furthermore, a push rod is arranged in the center of the elastic sealing membrane; the push rod extends out of the water outlet; a second drainage channel is reserved between the push rod and the side wall of the water outlet; a sliding groove is arranged in the valve body above the elastic sealing diaphragm; the upper end of the push rod is connected in the chute in a sliding way.
Furthermore, the upper end of the ventilation joint is provided with a filter head; the filter head is provided with a filter screen.
Furthermore, the valve cover and the valve body are fixed through bolts; the joint of the valve cover and the valve body is provided with a first sealing ring.
In addition, a second sealing ring is arranged at the joint of the vent joint and the valve body.
Advantageous effects
The drain valve has an automatic draining function, and manual operation is not needed; the filter screen is arranged, so that oil contamination impurities can be prevented from entering the valve body to cause product damage; and is provided with a performance detection structure; the performance of the drain valve can be detected by operating the push rod.
Drawings
Fig. 1 is a schematic view showing a structure of a drain valve according to the present invention.
Fig. 2 is a schematic structural view of the elastic sealing diaphragm of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and similar words are intended to mean that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.
Aiming at the problems in the prior art, the embodiment of the utility model provides a drain valve for an automobile air storage tank.
Examples
As shown in fig. 1, the drain valve for the automobile air storage tank comprises a valve body 1, wherein a valve cover 2 is installed at the lower end of the valve body 1; the top end of the valve body 1 is provided with a ventilation joint 3; the upper end of the air joint 3 is connected with an air storage tank, and the lower end of the air joint 3 is communicated with a first air chamber 4 in the valve body 1; the outer ring of the first air chamber 4 is provided with an annular second air chamber 5; the lower end of the first air chamber 4 is provided with an elastic sealing diaphragm 6; the elastic sealing membrane 6 comprises a top membrane 61 at the top and a shell-shaped inner membrane with a funnel-shaped sealing structure at the bottom; the lower end of the top film 61 is provided with a spring gasket 7; a spring 8 is arranged between the spring gasket 7 and the valve cover 2; under the action of the elastic force of the spring 8, the upper end of the top film 61 is attached to the lower end opening of the first air chamber 4 and seals the first air chamber 4, and the upper end of the valve cover 2 is provided with a slot 9; the lower end of the slot 9 is provided with a water outlet 10; the lower end of the shell-shaped inner membrane extends into the slot 9 and seals the water outlet 10; a first drainage channel is reserved between the shell-shaped inner membrane and the side wall of the slot 9; the space above the valve cover 2 communicates with the second air chamber 5.
When the air storage tank stores air, compressed air enters the first air chamber 4 through the air joint 3, and the high pressure of the compressed air acts on the top film 61; the top film 61 presses the spring 8; thereby opening the lower end opening of the first air chamber 4; the high-pressure gas enters the second gas chamber 5; condensed water enters the second air chamber 5 along with the high-pressure gas, and is deposited at the upper end of the valve cover 2; when the pressures in the first air chamber 4 and the second air chamber 5 are equalized, the top film 61 is restored to the original state and seals the lower end opening of the first air chamber 4.
When the brake is started, the internal pressure of the air storage tank is reduced, the pressure in the first air chamber 4 is reduced, and at the moment, the air pressure in the second air chamber 5 is greater than the air pressure in the first air chamber 4; the high-pressure gas in the second air chamber 5 can extrude the shell-shaped inner membrane; causing the shell-shaped inner membrane to deform and lift; after the shell-shaped inner membrane is lifted, the water outlet 10 is opened; the high-pressure gas in the second air chamber 5 is discharged through the water outlet 10 and carries condensed water to quickly flush out until the pressure in the second air chamber 5 is balanced with the pressure in the first air chamber 4, the shell-shaped inner membrane is restored to the initial state, and the water outlet is sealed again; automatic drainage can be realized through the structure.
The elastic sealing diaphragm 6 is made of elastic rubber.
The lower end of the top film 61 is provided with a gasket groove 62; the spring washer 7 is mounted in the washer groove 62.
In this embodiment, the shell-shaped inner films include, from top to bottom, a first conical-surface inner film 63, a second conical-surface inner film 64, an annular inner film 65, and a conical-shaped bottom film 66; the annular inner film 65 is positioned in the slot 9; a conical bottom membrane 66 is positioned at the upper end of the drain opening 10 and seals the drain opening 10. The shell-shaped inner membrane can be designed into any other shape as long as the shell-shaped inner membrane can be deformed and lifted under the action of gas to realize the function of opening the water outlet.
A push rod 11 is arranged in the center of the elastic sealing diaphragm 6; the push rod 11 extends out of the water outlet; a second drainage channel is reserved between the push rod 11 and the side wall of the water outlet 10; a sliding groove is arranged in the valve body 1 above the elastic sealing diaphragm 6; the upper end of the push rod 11 is connected in the sliding groove in a sliding way. The motion state of the sealing membrane during air storage of the air storage tank and brake starting can be simulated by pushing and pulling the push rod 11; thereby checking whether the performance of the drain valve is intact.
The upper end of the ventilation joint 3 is provided with a filter head 12; a filter screen 13 is mounted on the filter head 12. The filter screen can prevent oil contamination impurities from entering the valve body to cause the damage of the drain valve.
The valve cover 2 and the valve body 1 are fixed through bolts; the joint of the valve cover 2 and the valve body 1 is provided with a first sealing ring 14.
And a second sealing ring 15 is arranged at the joint of the vent joint 3 and the valve body 1.
Although the embodiments of the present invention have been described in detail hereinabove, it is apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it is to be understood that such modifications and variations are within the scope and spirit of the present invention as set forth in the following claims. Moreover, the utility model as described herein is capable of other embodiments and of being practiced or of being carried out in various ways.
Claims (8)
1. A drain valve for an automobile air storage tank comprises a valve body and is characterized in that a valve cover is mounted at the lower end of the valve body; the top end of the valve body is provided with a ventilation joint; the upper end of the air joint is connected with an air storage tank, and the lower end of the air joint is communicated with a first air chamber in the valve body; the outer ring of the first air chamber is provided with an annular second air chamber; the lower end of the first air chamber is provided with an elastic sealing diaphragm; the elastic sealing membrane comprises a top membrane at the top and a shell-shaped inner membrane with a funnel-shaped sealing structure at the bottom; the lower end of the top film is provided with a spring gasket; a spring is arranged between the spring gasket and the valve cover; under the action of the elastic force of the spring, the upper end of the top film is attached to the lower end opening of the first air chamber and seals the first air chamber, and the upper end of the valve cover is provided with a slot; the lower end of the slot is provided with a water outlet; the lower end of the shell-shaped inner membrane extends into the slot and seals the water outlet; a first drainage channel is reserved between the shell-shaped inner membrane and the side wall of the slot; the space above the valve cover is communicated with the second air chamber.
2. The drain valve for the air tank of the automobile as claimed in claim 1, wherein the elastic sealing diaphragm is made of elastic rubber.
3. The drain valve for the air tank of the automobile as claimed in claim 2, wherein the lower end of the top film is provided with a gasket groove; the spring gasket is installed in the gasket groove.
4. The water discharge valve for the air storage tank of the automobile as claimed in claim 3, wherein the shell-shaped inner film comprises a first conical surface inner film, a second conical surface inner film, a ring-shaped inner film and a cone-shaped bottom film from top to bottom; the annular inner film is positioned in the slot; the cone-shaped bottom membrane is positioned at the upper end of the water outlet and seals the water outlet.
5. The drain valve for the air storage tank of the automobile as claimed in claim 4, wherein a push rod is installed at the center of the elastic sealing diaphragm; the push rod extends out of the water outlet; a second drainage channel is reserved between the push rod and the side wall of the water outlet; a sliding groove is arranged in the valve body above the elastic sealing diaphragm; the upper end of the push rod is connected in the chute in a sliding way.
6. The drain valve for the air storage tank of the automobile as claimed in claim 5, wherein a filter head is installed at an upper end of the air vent joint; the filter head is provided with a filter screen.
7. The drain valve for the air tank of the automobile as claimed in claim 6, wherein the valve cap and the valve body are fixed by a bolt; the joint of the valve cover and the valve body is provided with a first sealing ring.
8. The water discharge valve for the air tank of the automobile as claimed in claim 7, wherein a second sealing ring is provided at a junction of the air joint and the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122719866.6U CN216280649U (en) | 2022-02-24 | 2022-02-24 | Drain valve for automobile gas storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122719866.6U CN216280649U (en) | 2022-02-24 | 2022-02-24 | Drain valve for automobile gas storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216280649U true CN216280649U (en) | 2022-04-12 |
Family
ID=81007006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122719866.6U Active CN216280649U (en) | 2022-02-24 | 2022-02-24 | Drain valve for automobile gas storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216280649U (en) |
-
2022
- 2022-02-24 CN CN202122719866.6U patent/CN216280649U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230117 Address after: Room 4668, No. 58, Fumin Branch Road, Hengsha Township, Chongming District, Shanghai, 202150 Patentee after: Shanghai Enpry Vehicle Technology Co.,Ltd. Address before: No. 888, Chengliu Middle Road, Malu Town, Jiading District, Shanghai, 201801 Patentee before: SHANGHAI AILE PETROLEUM EQUIPMENT MANUFACTURING CO.,LTD. |