CN2140193Y - Automatic releasing pressure valve for pressure cooker - Google Patents
Automatic releasing pressure valve for pressure cooker Download PDFInfo
- Publication number
- CN2140193Y CN2140193Y CN 92217847 CN92217847U CN2140193Y CN 2140193 Y CN2140193 Y CN 2140193Y CN 92217847 CN92217847 CN 92217847 CN 92217847 U CN92217847 U CN 92217847U CN 2140193 Y CN2140193 Y CN 2140193Y
- Authority
- CN
- China
- Prior art keywords
- pressure
- valve
- pressure cooker
- valve body
- cooker
- 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 - Fee Related
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- Cookers (AREA)
Abstract
The utility model relates to an automatic releasing pressure valve for a pressure cooker, belonging to the pressure cooker and the sealing device of the pressure cooker. The device comprises a valve body (1), a valve core (2), a spring (3), puller screws (5) and screwing nuts (4). When the inside pressure of the pressure cooker is lower than the atmospheric pressure, the device used for the pressure cooker can balance the inside pressure and the outside pressure automatically and can be beneficial to prolong the service life of a rubber ring.
Description
Pressure cooker automatic negative-pressure valve.Belong to pressure cooker and sealing device thereof.
Pressure cooker is located barotropic state in the use of being heated, leave thermal source, and after the material cooling, the pressure in the pressure cooker is lower than atmospheric pressure, locates negative pressure state.Under negative pressure state, cushion rubber and pot a body, the tight adhesive of pot cover, even bond together, high-pressure pot cover is difficult for opening, and influences cushion rubber service life, sometimes even the handle that can fracture.
The purpose of this utility model provides a kind of pressure cooker automatic negative-pressure valve, and this automatic negative-pressure valve can be opened when the pressure cooker internal pressure is lower than atmospheric pressure at any time, reaches internal and external pressure balance, is convenient to open pot cover, prolongs cushion rubber service life.
Solution of the present utility model is to be similar to the pressure cooker flame-arrester vent plug, loads onto an automatic negative-pressure valve on high-pressure pot cover.The automatic negative-pressure valve is by valve body, valve stamen, and spring holds out against screw, screws nut and forms.Valve body directly is fixed on the pot cover with screwing nut, the valve stamen is installed in the valve body with holding out against screw by spring, the top of valve stamen is taper, directly be inserted in the last lower through-hole of valve body, when pot inner pressure during less than atmospheric pressure, spring by compression, the valve stamen is opened automatically, behind the internal and external pressure balance, spring reset, the valve stamen holds out against valve hole.
The utility model is used for pressure cooker, after pressure cooker leaves thermal source, can the autobalance pressure cooker inside and outside pressure, be convenient to open pot cover, prolong cushion rubber service life, need not to increase more expense for transforming existing pressure cooker.
Accompanying drawing 1 is a structural representation of the present utility model.
Valve body (1) is hollow cylindrical, has screw thread, flange center that upper lower through-hole is arranged inside and outside the cylinder, and flange is on pot cover, screw nut (4) and valve body (1) threaded engagement, below pot cover, valve stamen (2) top is taper, middle part, bottom can be square, circular, and be when the middle part is circular, necessary Upper and lower groove of ganging up is arranged, and the internal diameter of outside diameter and valve body (1) is basically identical, and valve stamen bottom is contraction section, hold bar in the inner ring of spring (3), its height is less than spring length, and holding out against screw (5) center has upper lower through-hole, holds out against screw and valve body screw thread is connected.
Best embodiment of the present utility model is that a flame-arrester vent plug with the dual fail-safe pressure cooker takes off, and changes the automatic negative-pressure valve into.
Claims (3)
1, a kind of automatic negative-pressure valve of pressure cooker, it is characterized in that this automatic negative-pressure valve includes valve body (1), valve stamen (2), spring (3), holds out against screw (5), screws nut (4), valve body (1) directly is fixed on the pot cover with screwing nut (4), valve stamen (2) is installed in the valve body (1) with holding out against screw (5) by spring (3), the top of valve stamen (2) is taper, there is last lower through-hole in the flange center of valve body (1), and holding out against screw (5) center has last lower through-hole.
2,, it is characterized in that the middle part of valve stamen (2) and bottom can be square, circular according to the pressure cooker automatic negative-pressure valve of claim 1.
3,, when it is characterized in that valve stamen (2) middle part, upper and lower groove of ganging up must be arranged, the internal diameter basically identical of outside diameter and valve body (1) for circle according to the pressure cooker automatic negative-pressure valve of claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92217847 CN2140193Y (en) | 1992-09-19 | 1992-09-19 | Automatic releasing pressure valve for pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92217847 CN2140193Y (en) | 1992-09-19 | 1992-09-19 | Automatic releasing pressure valve for pressure cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2140193Y true CN2140193Y (en) | 1993-08-18 |
Family
ID=33765560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92217847 Expired - Fee Related CN2140193Y (en) | 1992-09-19 | 1992-09-19 | Automatic releasing pressure valve for pressure cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2140193Y (en) |
-
1992
- 1992-09-19 CN CN 92217847 patent/CN2140193Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |