CN202920852U - Air supply valve - Google Patents
Air supply valve Download PDFInfo
- Publication number
- CN202920852U CN202920852U CN 201220258747 CN201220258747U CN202920852U CN 202920852 U CN202920852 U CN 202920852U CN 201220258747 CN201220258747 CN 201220258747 CN 201220258747 U CN201220258747 U CN 201220258747U CN 202920852 U CN202920852 U CN 202920852U
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- CN
- China
- Prior art keywords
- supply valve
- spring
- pressure
- gas
- trip rod
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses an air supply valve which comprises a current limiting ring, an air containing cavity, a small hole, an impacting rod, a spring and an impacting cap. The impacting rod and the spring are arranged in the impacting cap, the impacting rod is mounted in the middle of the spring, the current limiting ring is embedded in the air containing cavity, and the small hole is formed in the lower end of the air containing cavity and communicated with the impacting rod. Through the air supply valve, potential safety hazards of people can be reduced effectively, and safety of manpower, financial resources and material resources can be well guaranteed.
Description
Technical field
The utility model relates to a kind of steam supply valve, relates in particular to a kind of respirator steam supply valve.
Technical background
Because too nervous in the fire fighting middle spirit of speedily carrying out rescue work, and audible alarm that produce not enough to the harness source of the gas may note less than, thereby might produce hidden danger to personal security.Increased the additional warning device that makes the steam supply valve vibration in the situation of source of the gas deficiency in original harness, vibration wave is delivered to the fire fighter on the face by face shield for this reason, makes personnel know that the harness source of the gas is not enough, should withdraw as early as possible dangerous on-the-spot.
Because the gas cylinder internal pressure is higher, and the required pressure of gas welding and gas cutting and use point is less, so need to come the gas that is stored in the elevated pressures in the gas cylinder is reduced to low-pressure gas with pressure reducer, and should guarantee that required operating pressure keeps stable state from start to finish.In a word, pressure reducer is that gases at high pressure are reduced to low-pressure gas, and kept pressure and the constant adjusting device of stability of flow of output gas.
The steam supply valve great majority that use on the market now do not provide the vibration alarming function.
The utility model content
In order to solve the deficiency of technique scheme, the utility model provides a kind of steam supply valve.
This programme provides steam supply valve, comprises the current limliting circle, holds air cavity, aperture, trip rod, spring, percussive cap, and described trip rod and spring are located in the described percussive cap.
Described trip rod is mounted in the middle of the described spring.
Described current limliting circle is embedded in the described appearance air cavity.
Described aperture is located at appearance air cavity lower end and is connected with trip rod.
Source of the gas is closed container, along with the gradually consumption of using Air, pressure also reduces thereupon gradually, the gas cylinder internal pressure greater than the 5.5MPa situation under, two Output pressure pressure reducer outputs are about 0.7MPa, and air-flow is by behind the part current limliting circle, and the rubber blanket that aperture is knocked in the bar is blocked, this road gas is without the flow direction at this moment, and steam supply valve is identical with former duty.When the gas cylinder supply gas pressure at 5.5MPa or when following, two Output pressure pressure reducer outputs are 0.95MPa pressure, air-flow is by part current limliting circle, because this moment, input pressure raise, rubber blanket in the trip rod can't be blocked and promote the trip rod Compress Spring and hit percussive cap bump, damping hole effect because of the current limliting circle, hold in the air cavity that gas can't in time obtain replenishing this moment and pressure descends rapidly, under the effect of spring pressure, rubber blanket in the trip rod is blocked rapidly aperture, action, the so back and forth vibration-generating with regard to having produced vibration more than repeating when at this moment, gas pressure rises to 0.95MPa again within holding air cavity.Vibration wave is delivered to face shield by steam supply valve and produces seismaesthesia, additional strike note gently.
The beneficial effects of the utility model are: can effectively reduce personal security hidden danger by the technical program, for ensureing manpower, financial resources, material resources provide safely good guarantee.
Description of drawings
Fig. 1 is structure chart of the present utility model;
The specific embodiment
Below in conjunction with Fig. 1 the utility model is done and to be described in further detail: steam supply valve, comprise current limliting circle 1, container chamber 2, aperture 3, trip rod 4, spring 5, percussive cap 6, trip rod and spring are located in the described percussive cap, trip rod is mounted in the middle of the described spring, the current limliting circle is embedded in the described appearance air cavity, and aperture is located at appearance air cavity lower end and is connected with trip rod.
Source of the gas is closed container, along with the gradually consumption of using Air, pressure also reduces thereupon gradually, the gas cylinder internal pressure greater than the 5.5MPa situation under, two Output pressure pressure reducer outputs are about 0.7MPa, and air-flow is by behind the part current limliting circle, and the rubber blanket that aperture is knocked in the bar is blocked, this road gas is without the flow direction at this moment, and steam supply valve is identical with former duty.When the gas cylinder supply gas pressure at 5.5MPa or when following, two Output pressure pressure reducer outputs are 0.95MPa pressure, air-flow is by part current limliting circle, because this moment, input pressure raise, rubber blanket in the trip rod can't be blocked and promote the trip rod Compress Spring and hit percussive cap bump, damping hole effect because of the current limliting circle, hold in the air cavity that gas can't in time obtain replenishing this moment and pressure descends rapidly, under the effect of spring pressure, rubber blanket in the trip rod is blocked rapidly aperture, action, the so back and forth vibration-generating with regard to having produced vibration more than repeating when at this moment, gas pressure rises to 0.95MPa again within holding air cavity.Vibration wave is delivered to face shield by steam supply valve and produces seismaesthesia, additional strike note gently.
Can effectively reduce personal security hidden danger by the technical program, for ensureing manpower, financial resources, material resources provide safely good guarantee.
Claims (4)
1. steam supply valve comprises the current limliting circle, holds air cavity, aperture, trip rod, spring, percussive cap, and it is characterized in that: described trip rod and spring are located in the described percussive cap.
2. steam supply valve according to claim 1, it is characterized in that: described trip rod is mounted in the middle of the described spring.
3. steam supply valve according to claim 1, it is characterized in that: described current limliting circle is embedded in the described appearance air cavity.
4. steam supply valve according to claim 1 is characterized in that: described aperture is located at and is held the air cavity lower end and be connected with trip rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220258747 CN202920852U (en) | 2012-06-04 | 2012-06-04 | Air supply valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220258747 CN202920852U (en) | 2012-06-04 | 2012-06-04 | Air supply valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202920852U true CN202920852U (en) | 2013-05-08 |
Family
ID=48210845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220258747 Expired - Lifetime CN202920852U (en) | 2012-06-04 | 2012-06-04 | Air supply valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202920852U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112912148A (en) * | 2018-10-05 | 2021-06-04 | 金相东 | A tubular fire extinguishing apparatus that is used for inside of container for ship transportation to put out a fire |
-
2012
- 2012-06-04 CN CN 201220258747 patent/CN202920852U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112912148A (en) * | 2018-10-05 | 2021-06-04 | 金相东 | A tubular fire extinguishing apparatus that is used for inside of container for ship transportation to put out a fire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |
|
| CX01 | Expiry of patent term |