CN2330280Y - Safety pressure cooker - Google Patents
Safety pressure cooker Download PDFInfo
- Publication number
- CN2330280Y CN2330280Y CN 98204913 CN98204913U CN2330280Y CN 2330280 Y CN2330280 Y CN 2330280Y CN 98204913 CN98204913 CN 98204913 CN 98204913 U CN98204913 U CN 98204913U CN 2330280 Y CN2330280 Y CN 2330280Y
- Authority
- CN
- China
- Prior art keywords
- exhaust nozzle
- pressure
- pressure cooker
- limiting valve
- filter screen
- 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 belongs to a pressure vessel, particularly a safety device for a pressure cooker. The utility model has a primary safeguard structure that the centre of a cooker lid is fixed with a tubular exhaust nozzle. A pressure limiting valve is buckled on the exhaust nozzle, and the top part of an inner cavity of the pressure limiting valve is provided with a dredging rod which penetrates through the exhaust nozzle. The pressure limiting valve drives the dredging rod to do reciprocating motion in the exhaust nozzle in exhaust process. The utility model can effectively avoid stemming in the exhaust nozzle to bring about piling up and dryness until the phenomenon of clogging occurs. The utility model has the advantages of simple structure and good safety performance and can thoroughly prevent the clogging of the exhaust nozzle.
Description
The utility model belongs to pressure vessel, particularly relates to a kind of safety device of pressure cooker.
It is the on record fact that the pressure cooker exhaust nozzle stops up build-up of pressure pot explosion casualty accident, for preventing the generation of this type of accident, a kind of being called,, the product of " anti-blocking guard " was commonly used, and this guard is fixed on the exhaust nozzle inlet, its objective is to stop particulate material to enter exhaust nozzle.Yet facts have proved that it can not stop the material less than the guard mesh to enter exhaust nozzle, and under high temperature action rapid conglomeration drying, and then stop up exhaust nozzle; Can not get rid of pastel with mesh whole or big portion stop up and pot inner pressure sharply risen and cause the danger of explosion.
The purpose of this utility model provides a kind of new type of safe pressure cooker that can prevent thoroughly that exhaust nozzle from stopping up.
Above-mentioned purpose obtains by the following technical programs: pot cover 4 centres are fixed with tubulose exhaust nozzle 6, the pressure limiting valve 7 of spiral-lock on exhaust nozzle, and top of chamber is provided with the mediation bar 9 that connects exhaust nozzle in it.
Mediation bar 9 is provided with the altitude margin that pressure limiting valve 7 limit promote;
Pot body 1 top is provided with by the pot body wall to be supported and spacing filter screen 2;
Filter screen 2 can be the wire side of solid matter through hole and the comb shape thing that bracing ring is one;
Filter screen 2 also can be that the wire side by bracing ring and tensioning constitutes;
The pot body wall is provided with the support rim 11 of support filter screen and the positive stop 10 on top thereof, and the bracing ring of filter screen 2 is provided with the corresponding groove 3 of positive stop with symmetry;
Setting is two meltable valve 5 at least on the pot cover 4.
Below with drawings and Examples explanation the utility model.
Accompanying drawing 1, the utility model structural profile schematic diagram.
Among the figure: 1 pot of body, 2 filter screens, 3 grooves, 4 pot covers, 5, the meltable valve of 5a, 6 exhaust nozzles, 7 pressure limiting valves, 8 steam vents, 9 mediation bars, 10 positive stops, 11 support rims.
Embodiment as shown in the figure, the exhaust nozzle 6 of tubulose is fixed in pot cover 4 centres, the pressure limiting valve of adorning on it that has steam vent 87 for sleeping in, and top of chamber is provided with the mediation bar 9 that connects exhaust nozzle in it, its length should still have certain surplus of stretching out exhaust nozzle when the designed limit raised position of pressure limiting valve.Should comprise the quality of dredging bar when designing this pressure limiting valve, and be complementary with the total backlash amount of exhaust nozzle internal diameter.The operation principle that has the pressure limiting valve of dredging bar is, when actual pressure in the pot limits pressure greater than pressure limiting valve, carry and press steam to discharge from gap between mediation bar and the exhaust nozzle through pressure limiting valve inner chamber and steam vent 8, this moment pressure limiting valve and the mediation bar must on move, when being reduced to pressure limiting valve qualification pressure under the pot internal gas pressure, the pressure limiting valve homing, and at actual pressure when limiting the identical critical condition of pressure, pressure limiting valve will drive the mediation bar and move back and forth in exhaust nozzle, the interior tamper of mouth is kept in motion is sprayed by high pressure draught at any time, and can not pile up, dry, clogging.
Pot body of the present utility model top is provided with the filter screen that is supported by support rim 11, it is the comb shape thing structure of one that present embodiment adopts wire side and bracing ring thereof, wire side is evenly equipped with the through hole that diameter is 2mm, comb shape thing periphery is provided with and the symmetrically arranged positive stop 10 corresponding grooves 3 of pot body wall, when groove alignment positive stop comb shape thing can engage with support rim, rotate comb shape thing certain angle and can make it spacing and can not move up.The effect of filter screen is to stop that the material greater than the wire side micropore compiles towards exhaust nozzle with high pressure draught.
Present embodiment also is provided with two meltable valves 5,5a on pot cover, lost efficacy when avoiding single the setting and dangerous situation occurs.
The utlity model has simple in structurely, can prevent thoroughly that exhaust nozzle from stopping up security Remarkable advantage that can be good.
Claims (7)
1, new type of safe pressure cooker is made up of pot body, pot cover, exhaust nozzle, pressure limiting valve and meltable valve, it is characterized in that: the pot cover centre is fixed with the exhaust nozzle of tubulose, the pressure limiting valve of spiral-lock on exhaust nozzle, and top of chamber is provided with the mediation bar that connects exhaust nozzle in it.
2, pressure cooker as claimed in claim 1 is characterized in that: the mediation bar is provided with the altitude margin that the pressure limiting valve limit promotes.
3, pressure cooker as claimed in claim 1 is characterized in that: pot body top is provided with by the pot body wall to be supported and spacing filter screen.
4, pressure cooker as claimed in claim 3 is characterized in that: filter screen can be the wire side of solid matter through hole and the comb shape thing that bracing ring is one.
5, pressure cooker as claimed in claim 3 is characterized in that: filter screen also can be that the wire side by bracing ring and tensioning constitutes.
6, as claim 3 or 4 or 5 described pressure cookers, it is characterized in that: the pot body wall is provided with the support rim of support filter screen and the positive stop on top thereof, and the bracing ring of filter screen is provided with and symmetrically arranged positive stop corresponding grooves.
7, pressure cooker as claimed in claim 1 is characterized in that: setting is two meltable valve at least on the pot cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98204913 CN2330280Y (en) | 1998-06-08 | 1998-06-08 | Safety pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98204913 CN2330280Y (en) | 1998-06-08 | 1998-06-08 | Safety pressure cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2330280Y true CN2330280Y (en) | 1999-07-28 |
Family
ID=33961417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98204913 Expired - Fee Related CN2330280Y (en) | 1998-06-08 | 1998-06-08 | Safety pressure cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2330280Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100403967C (en) * | 2005-12-30 | 2008-07-23 | 四川大学 | Valve for pressure-cooker with function of automatic clearing away obstacle to prevent the cooker from explosion |
-
1998
- 1998-06-08 CN CN 98204913 patent/CN2330280Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100403967C (en) * | 2005-12-30 | 2008-07-23 | 四川大学 | Valve for pressure-cooker with function of automatic clearing away obstacle to prevent the cooker from explosion |
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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 |