CN218440852U - Overflow valve - Google Patents
Overflow valve Download PDFInfo
- Publication number
- CN218440852U CN218440852U CN202122577536.8U CN202122577536U CN218440852U CN 218440852 U CN218440852 U CN 218440852U CN 202122577536 U CN202122577536 U CN 202122577536U CN 218440852 U CN218440852 U CN 218440852U
- Authority
- CN
- China
- Prior art keywords
- valve
- cavity
- valve body
- spring
- valve seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Safety Valves (AREA)
Abstract
The utility model provides an overflow valve, which relates to the technical field of automobile machinery and comprises a valve seat and a valve body; the valve seat is positioned at the upper end of the valve body; a first cavity is arranged in the valve seat; a spring base is sleeved in the first cavity in a sliding manner; an installation groove is arranged in the spring base; a pressure regulating spring is arranged in the mounting groove; a gasket is arranged at the upper end of the pressure regulating spring; the gasket is provided with a pressure regulating screw rod; the top of the valve seat is provided with a threaded hole; the pressure regulating screw rod is in threaded connection with the threaded hole; the lower end of the spring base is provided with an elastic sealing diaphragm; the elastic sealing diaphragm is fixed between the valve seat and the valve body; the bottom of the spring base is tightly attached to the upper end of the elastic sealing diaphragm; the overflow valve of the utility model is mainly used for the automobile brake system; the structure is simple, and the design is exquisite; the sensitivity is very high; gas backflow can be prevented.
Description
Technical Field
The utility model relates to the technical field of automotive machinery, especially, relate to an overflow valve.
Background
The overflow valve is a pressure control valve, and the pressure of a controlled system or a loop is kept constant through the overflow of a valve port, so that the functions of pressure stabilization, pressure regulation or pressure limitation and the like are realized.
The working principle of the existing overflow valve is that a valve core is driven by gas to do linear motion, so that a flow channel of the gas is opened, for example, the overflow valve structure disclosed in patent No. 201721507421.9; the valve core can generate friction in the moving process, and is easy to generate abrasion over time, so that the air tightness is poor, and the sensitivity is also reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an overflow valve to solve above-mentioned technical problem.
In order to achieve the above purpose, the overflow valve of the present invention comprises a valve seat and a valve body; the valve seat is positioned at the upper end of the valve body; a first cavity is arranged in the valve seat; the first cavity is sleeved with a spring base in a sliding manner; an installation groove is arranged in the spring base; a pressure regulating spring is arranged in the mounting groove; a gasket is arranged at the upper end of the pressure regulating spring; the gasket is provided with a pressure regulating screw rod; the top of the valve seat is provided with a threaded hole; the pressure regulating screw rod is in threaded connection with the threaded hole; the lower end of the spring base is provided with an elastic sealing diaphragm; the elastic sealing diaphragm is fixed between the valve seat and the valve body; the bottom of the spring base is tightly attached to the upper end of the elastic sealing diaphragm;
a second cavity is arranged in the valve body; a partition plate is arranged in the second cavity; the second cavity is divided into an air inlet cavity and an air outlet cavity by the partition plate; the valve body is provided with an air inlet communicated with the air inlet cavity; the valve body is provided with an air outlet communicated with the air outlet cavity; the top of the valve body is provided with a first communication port communicated with the air inlet cavity; the top of the valve body is provided with a second communication port communicated with the air outlet cavity; the elastic sealing membrane is tightly attached to the first communication port and the second communication port;
an auxiliary valve is arranged in the air outlet cavity; a sealing ring fixedly sleeved with the auxiliary valve is arranged between the auxiliary valve and the valve body; a spring support fixedly connected with the valve body is arranged on one side of the auxiliary valve close to the air outlet; an auxiliary valve spring is arranged between the spring support and the auxiliary valve.
Further, the valve seat, the valve body and the elastic sealing diaphragm are fixedly connected through bolts;
furthermore, the auxiliary valve consists of a spring clip, a valve core and a guide plate; the spring clamp is arranged on one side of the valve core close to the air outlet; the valve core is provided with an annular clamping groove; the sealing ring is arranged in the clamping groove; the guide plate is arranged on one side of the valve core far away from the air outlet.
Further, the guide plate is composed of three flat plates at 120 ° to each other.
In addition, the valve seat is provided with an air hole communicated with the first cavity; the air hole is provided with a valve plug. And a nameplate is fixed on the outer side of the valve seat through a rivet.
Advantageous effects
The overflow valve of the utility model is mainly used for the automobile brake system; the structure is simple, and the design is exquisite; the sensitivity is very high; gas backflow can be prevented.
Drawings
Fig. 1 is the overall structure schematic diagram of the overflow valve of the present invention.
Fig. 2 is a schematic diagram of the explosion structure of the overflow valve of the present invention.
Fig. 3 is a schematic structural diagram of the auxiliary valve of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the attached drawings of the present invention are combined to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly 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 preceding the word comprises the element or item listed after the word and its equivalent, but not the exclusion of other elements or items.
To the problem that prior art exists, the embodiment of the utility model provides an overflow valve.
Examples
As shown in fig. 1 to 3, an overflow valve includes a valve seat 1 and a valve body 2; the valve seat 1 is positioned at the upper end of the valve body 2; a first cavity is arranged in the valve seat 1; a spring base 3 is sleeved in the first cavity in a sliding manner; the spring base 3 is internally provided with a mounting groove; a pressure regulating spring 4 is arranged in the mounting groove; the upper end of the pressure regulating spring 4 is provided with a gasket 5; the gasket 5 is provided with a pressure regulating screw rod 6; the top of the valve seat 1 is provided with a threaded hole; the pressure regulating screw rod 6 is in threaded connection with the threaded hole; the lower end of the spring base 3 is provided with an elastic sealing diaphragm 7; the elastic sealing membrane 7 is fixed between the valve seat 1 and the valve body 2; the bottom of the spring base 3 is tightly attached to the upper end of the elastic sealing diaphragm 7;
a second cavity is arranged in the valve body 2; a partition plate 8 is arranged in the second cavity; the baffle plate 8 divides the second cavity into an air inlet cavity 9 and an air outlet cavity 10; the valve body 2 is provided with an air inlet 11 communicated with the air inlet cavity 9; the valve body 2 is provided with an air outlet 12 communicated with the air outlet cavity 10; the top of the valve body 2 is provided with a first communication port 13 communicated with the air inlet cavity 9; the top of the valve body 2 is provided with a second communicating port 14 communicated with the air outlet cavity 10; the elastic sealing membrane 7 is tightly attached to the first communication port 13 and the second communication port 14; in the embodiment, the elastic sealing membrane 7 is adopted to replace a valve core; compared with the valve core, the elastic sealing membrane 7 is not easy to wear.
An auxiliary valve 15 is arranged in the air outlet cavity 10; a sealing ring 16 fixedly sleeved with the auxiliary valve 15 is arranged between the auxiliary valve 15 and the valve body 2; a spring bracket 17 fixedly connected with the valve body 2 is arranged on one side of the auxiliary valve 15 close to the air outlet 12; an auxiliary valve spring 18 is provided between the spring holder 17 and the auxiliary valve 15. If gas backflow occurs, the sub-valve 15 is restored by the elastic force of the sub-valve spring 18, thereby sealing the backflow port and preventing the gas backflow.
The valve seat 1, the valve body 2 and the elastic sealing diaphragm 7 are fixedly connected through bolts;
the auxiliary valve 15 consists of three parts, namely a spring clamp 19, a valve core 20 and a guide plate 21; the spring clamp 19 is arranged on one side of the valve core 20 close to the air outlet 12; for snapping the secondary valve spring 18; an annular clamping groove 22 is formed in the valve core 20; the sealing ring 16 is arranged in the clamping groove 22; the guide plate 21 is provided on the side of the valve body 20 remote from the outlet port 12.
The guide plate 21 consists of three flat plates at 120 ° to each other.
The valve seat 1 is provided with an air hole communicated with the first cavity; a valve plug 23 is mounted on the air hole. And a nameplate 24 is fixed on the outer side of the valve seat 1 through a rivet.
When the air-tight sealing device works, air enters the air inlet cavity 9 through the air inlet 11, and the air pushes the elastic sealing membrane 7 to form a gap when reaching a certain pressure; the gas flows into the chamber between the secondary valve 15 and the elastic sealing diaphragm 7 through the gap; then pushes the auxiliary valve 15 open to flow into the air outlet chamber 10 and flows out through the air outlet 12. The pressure regulating screw rod 6 can regulate the pretightening force of the pressure regulating spring 4, thereby controlling the air pressure of the air passing through.
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 appended claims. Moreover, the invention as described herein is capable of other embodiments and of being practiced or of being carried out in various ways.
Claims (7)
1. An overflow valve, characterized in that the overflow valve comprises a valve seat and a valve body; the valve seat is positioned at the upper end of the valve body; a first cavity is arranged in the valve seat; a spring base is sleeved in the first cavity in a sliding manner; an installation groove is arranged in the spring base; a pressure regulating spring is arranged in the mounting groove; a gasket is arranged at the upper end of the pressure regulating spring; the gasket is provided with a pressure regulating screw rod; the top of the valve seat is provided with a threaded hole; the pressure regulating screw rod is in threaded connection with the threaded hole; the lower end of the spring base is provided with an elastic sealing diaphragm; the elastic sealing diaphragm is fixed between the valve seat and the valve body; the bottom of the spring base is tightly attached to the upper end of the elastic sealing diaphragm;
a second cavity is arranged in the valve body; a partition plate is arranged in the second cavity; the second cavity is divided into an air inlet cavity and an air outlet cavity by the partition plate; the valve body is provided with an air inlet communicated with the air inlet cavity; the valve body is provided with an air outlet communicated with the air outlet cavity; the top of the valve body is provided with a first communication port communicated with the air inlet cavity; the top of the valve body is provided with a second communicating port communicated with the air outlet cavity; the elastic sealing membrane is tightly attached to the first communication port and the second communication port.
2. The relief valve according to claim 1, wherein a secondary valve is installed in said outlet chamber; a sealing ring fixedly sleeved with the auxiliary valve is arranged between the auxiliary valve and the valve body; a spring support fixedly connected with the valve body is arranged on one side of the auxiliary valve close to the air outlet; an auxiliary valve spring is arranged between the spring support and the auxiliary valve.
3. The relief valve according to claim 2, wherein the valve seat, the valve body and the elastic sealing diaphragm are fixedly connected by bolts.
4. The overflow valve of claim 3 wherein the secondary valve is comprised of three parts, a spring clip, a spool and a pilot plate; the spring clamp is arranged on one side of the valve core close to the air outlet; the valve core is provided with an annular clamping groove; the sealing ring is arranged in the clamping groove; the guide plate is arranged on one side of the valve core far away from the air outlet.
5. A relief valve according to claim 4 wherein the guide comprises three plates disposed at 120 ° to each other.
6. The overflow valve of claim 5 wherein the valve seat is provided with an air hole communicating with the first cavity; the air hole is provided with a valve plug.
7. The overflow valve of claim 5 wherein the outer side of the valve seat is further riveted with a nameplate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122577536.8U CN218440852U (en) | 2021-10-26 | 2021-10-26 | Overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122577536.8U CN218440852U (en) | 2021-10-26 | 2021-10-26 | Overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218440852U true CN218440852U (en) | 2023-02-03 |
Family
ID=85080828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122577536.8U Active CN218440852U (en) | 2021-10-26 | 2021-10-26 | Overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218440852U (en) |
-
2021
- 2021-10-26 CN CN202122577536.8U patent/CN218440852U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2528220C2 (en) | Balanced insert valve | |
| CN107191653B (en) | Water hammer bleeder valve | |
| US2737202A (en) | Appliance regulator | |
| US9816635B2 (en) | Valve having an exchangeable cartridge | |
| CN218440852U (en) | Overflow valve | |
| US3115154A (en) | Pressure regulator with integral relief valve | |
| US2737201A (en) | Appliance regulator | |
| CN104514901A (en) | Plastic sealing type pilot-operated safety valve | |
| CN212564588U (en) | Pilot-operated type dynamic differential pressure balance valve | |
| GB2078341A (en) | A gas pressure governor | |
| CN105650314A (en) | Self-operated type pressure stabilizing balance valve | |
| CN114151587A (en) | Fluid pressure regulating valve | |
| CN203571134U (en) | Plastic sealing pilot operated safety valve | |
| CN209587252U (en) | A kind of self-power differential pressure balanced valve | |
| SE448592B (en) | DEVICE REGULATION DEVICE IN A PRESSURE CONTROL SYSTEM | |
| CN217328642U (en) | Gas pressure regulator with bleeding valve | |
| CN215258026U (en) | High-pressure safety valve with complete pressure relief function | |
| CN212297806U (en) | Pressure regulator for bottled liquefied petroleum gas | |
| US2213789A (en) | Combined regulator and relief valve | |
| CN214466385U (en) | Pressure control device for non-linear PRV valve crankcase | |
| CN214837457U (en) | Pilot-free simple pressure reducing valve | |
| CN209892812U (en) | Differential pressure type voltage regulator | |
| CN103644342A (en) | Pneumatic-control pollution-resistant zero-leakage cartridge pressure reducing valve | |
| CN110701352A (en) | Gas pressure regulating valve operating under negative pressure | |
| CN210266052U (en) | Vacuum pressure reducing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |