CN209959429U - Miniature air pump relief valve - Google Patents
Miniature air pump relief valve Download PDFInfo
- Publication number
- CN209959429U CN209959429U CN201920180273.7U CN201920180273U CN209959429U CN 209959429 U CN209959429 U CN 209959429U CN 201920180273 U CN201920180273 U CN 201920180273U CN 209959429 U CN209959429 U CN 209959429U
- Authority
- CN
- China
- Prior art keywords
- air pump
- valve
- pressure relief
- cavity
- pressure
- 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 relates to a relief valve especially relates to a spring-loaded miniature air pump relief valve, mainly used gasbag pressure's safety protection. The utility model provides a miniature air pump relief valve, includes valve body and valve head, its characterized in that: the valve body is tightly matched with the front end of the air pump. The valve head is internally provided with a cavity matched with the air outlet head of the air pump, and the cavity is respectively communicated with the pressure relief cavity and the inflation head. The utility model has the advantages that: because the miniature air pump is precisely matched with the pressure release valve, the volume is small and the structure is compact.
Description
Technical Field
The utility model relates to a relief valve especially relates to a spring-loaded miniature air pump relief valve, mainly used gasbag pressure's safety protection.
Background
When the air bag is over-pressurized, the air bag can be broken, and the service life of the product is influenced. In order to protect the service life of the airbag, certain requirements are imposed on the safety of the airbag. During the inflation and deflation process of the air bag, excessive inflation pressure is possibly too high; it is also possible that the pressure is too high when exposed to external pressure. Therefore, it is necessary to install a pressure relief device on the airbag to prevent the airbag from being ruptured to cause personal injury or property loss. Due to the special structure of the air bag and the requirement of the use occasion, a miniature pressure relief valve which is arranged at the head part of the air pump and matched with the air pump is required to be designed.
Disclosure of Invention
An object of the utility model is to provide a miniature air pump relief valve can guarantee that system's atmospheric pressure is when setting for the pressure value, through automatic pressure release of mechanical system, steady voltage, and the response is fast, with low costs, the mechanism is simple, the reliability is high.
In order to achieve the above object, the present invention provides a miniature air pump relief valve, which comprises a valve body 21 and a valve head 22, and is characterized in that: the valve body 21 is tightly matched with the front end of the air pump 1. The valve head 22 is internally provided with a cavity 221 matched with the air outlet head 11 of the air pump 1, and the cavity 221 is respectively communicated with a pressure relief cavity 222 and an inflation head 223.
A pressure relief mechanism is arranged in the pressure relief cavity 222, and the pressure relief mechanism is composed of a pressure spring 224, a sealing gasket 225 and a pressure relief cavity cover 226.
One end of the compression spring 224 is mounted on the seat 2251 of the sealing pad 225, and the other end is fixed in the groove 2261 of the pressure relief chamber cover 226.
The pressure release cover 226 is provided with a gas release hole 2263, and the side wall of the pressure release cover is provided with a thread 2262 matched with the valve body.
A sealing ring 2241 is arranged at the port of the pressure relief cavity 222. The valve body (21) and the valve head (22) are made of stainless steel.
The utility model has the advantages that: because the miniature air pump is precisely matched with the pressure release valve, the volume is small and the structure is compact.
Drawings
Fig. 1 is a cross-sectional view of the overall structure of the present invention.
FIG. 2 is a sectional view of the pressure relief cavity of the present invention
FIG. 3 is the schematic view of the buckle mechanism of the present invention
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention.
The utility model provides a miniature air pump relief valve is called miniature air pump relief valve, comprises valve body 21 and valve head 22 two parts. The valve body 2 is tightly matched with the air pump 1. The valve body 2 and the air pump 1 are fixedly combined by two symmetrical bayonets 23.
The valve head 22 is internally provided with a cavity 221 matched with the air outlet head 11 of the air pump 1, and the cavity 221 is respectively communicated with a pressure relief cavity 222 and an inflation head 223. The inflation head 223 is used to inflate the airbag. The pressure relief chamber 222 is used for safety protection of the airbag.
A pressure relief mechanism is arranged in the pressure relief cavity 222, and the pressure relief mechanism is composed of a pressure spring 224, a sealing gasket 225 and a pressure relief cavity cover 226. One end of the pressure spring 224 is mounted on the seat 2251 of the sealing gasket 225, and the other end is fixed in the groove 2261 of the pressure relief cavity cover 226; the pressure release cover 226 is provided with a gas release hole 2263, and the side wall of the pressure release cover is provided with a thread 2262 matched with the valve body. A sealing ring 2241 is arranged at the port of the pressure relief cavity 222.
When the air pump 1 works, the inflation head inflates the cavity of the pressure release valve 2. At this time, the pressure relief mechanism is closed by the gasket 225 due to the action of the compression spring 224 in the pressure relief mechanism, and only the inflation head 223 can be inflated. When the pressure of the air bag reaches the set value of the compression spring 224, the pressure relief cavity cover 226 is opened, and the air of the air pump 1 is shunted and is not inflated to the air bag any more.
The working principle of the pressure relief mechanism is as follows: when the air pressure is greater than the set value of the compression spring 224, the sealing pad 225 is opened, and the air is discharged through the relief cavity 222 and the relief hole 2263 of the relief cavity cover 226.
The inner side of the tail end of the pressure relief cavity 222 is provided with threads, the outer side of the pressure relief cavity cover 226 is provided with threads matched with the threads, and the pressure of the pressure spring 224, namely the pressure value of the gas, can be adjusted by adjusting the up-down stroke position of the pressure relief cavity cover 226 in a rotating manner.
Claims (6)
1. The utility model provides a miniature air pump relief valve, includes valve body (21) and valve head (22), its characterized in that: the valve body (21) is tightly matched with the front end of the air pump (1); a cavity (221) matched with the air outlet head (11) of the air pump (1) is arranged in the valve head (22), and the cavity (221) is respectively communicated with the pressure relief cavity (222) and the air inflation head (223).
2. The miniature air pump pressure relief valve of claim 1, wherein: and a pressure relief mechanism is arranged in the pressure relief cavity (222), and the pressure relief mechanism consists of a pressure spring (224), a sealing gasket (225) and a pressure relief cavity cover (226).
3. The miniature air pump pressure relief valve of claim 2, wherein: one end of the pressure spring (224) is arranged on a seat (2251) of the sealing gasket (225), and the other end is fixed in a groove (2261) of the pressure relief cavity cover (226).
4. The miniature air pump pressure relief valve of claim 2, wherein: the pressure relief cavity cover (226) is provided with an air leakage hole (2263), and the side wall of the air leakage hole is provided with a thread (2262) matched with the valve body.
5. The miniature air pump pressure relief valve of claim 1, wherein: and a sealing ring (2241) is arranged at the port of the pressure relief cavity (222).
6. The miniature relief valve for air pump according to claim 1, wherein the valve body (21) and the valve head (22) are made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920180273.7U CN209959429U (en) | 2019-02-01 | 2019-02-01 | Miniature air pump relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920180273.7U CN209959429U (en) | 2019-02-01 | 2019-02-01 | Miniature air pump relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209959429U true CN209959429U (en) | 2020-01-17 |
Family
ID=69237681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920180273.7U Active CN209959429U (en) | 2019-02-01 | 2019-02-01 | Miniature air pump relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209959429U (en) |
-
2019
- 2019-02-01 CN CN201920180273.7U patent/CN209959429U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6470887B1 (en) | Protective breathing equipment with fast positioning | |
| US3866253A (en) | Divers buoyancy vest | |
| CN210344415U (en) | Inflatable air bag | |
| US11886212B2 (en) | Pneumatic valve with rupturable membrane | |
| KR20140000900A (en) | Portable life security pack | |
| CN109307152B (en) | Gas-filled joint with safety device and combination of gas-filled joint and high-pressure gas cylinder | |
| US3684404A (en) | Inflating apparatus | |
| CN209959429U (en) | Miniature air pump relief valve | |
| US4108204A (en) | Pressure relief valve | |
| CN113685593A (en) | Gas explosion type pressure reducing module | |
| KR101632688B1 (en) | Reducing Valve of Hyperbaric Gas Can | |
| FR2252519A1 (en) | Safety valve for pressurised storage container - overpressure releases plunger to rupture sealing diaphragm | |
| US3515166A (en) | Safety valves | |
| CN109050832A (en) | A kind of decompression breathing equipment and Portable diving breathing device | |
| US5297576A (en) | Oral inflation and relief tube | |
| ITBO940311A1 (en) | QUICK SEAL CONNECTION FOR SAFETY VALVES FOR TIRES | |
| CN209977371U (en) | Constant pressure reducing valve | |
| CN109595463A (en) | A kind of bottle valve with air charging system | |
| US20190021414A1 (en) | High altitude escape life jacket | |
| US2742075A (en) | Tire and wheel construction | |
| CN210600523U (en) | Aerify switching device | |
| CN206394847U (en) | A kind of bracelet of saving oneself with safety hammer | |
| CN218913855U (en) | Inflating valve structure | |
| CN210890260U (en) | Two-stage pressure reducer with balance cavity | |
| CN212616513U (en) | Pressure release indication type valve inside |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |