CN202408459U - Safety pressure relief device of electric pressure cooker - Google Patents
Safety pressure relief device of electric pressure cooker Download PDFInfo
- Publication number
- CN202408459U CN202408459U CN 201220048478 CN201220048478U CN202408459U CN 202408459 U CN202408459 U CN 202408459U CN 201220048478 CN201220048478 CN 201220048478 CN 201220048478 U CN201220048478 U CN 201220048478U CN 202408459 U CN202408459 U CN 202408459U
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- CN
- China
- Prior art keywords
- valve seat
- spool
- relief device
- pressure relief
- annular boss
- 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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Abstract
The utility model relates to a safety pressure relief device of an electric pressure cooker. The safety pressure relief device comprises a pot cover, a valve seat provided with an inner cavity, a valve core and a spring, wherein the valve seat is fixed on the pot cover, the valve core is positioned in the inner cavity of the valve seat, the spring is sheathed on the valve core, and the top of the valve core is provided with a valve cover for sealing the inner cavity of the valve seat. The safety pressure relief device is characterized in that the inner cavity of the valve seat is provided with a limiting hole, the valve core is provided with an annular convex platform, the annular convex platform is positioned below the limiting hole of the inner cavity of the valve seat, and the diameter of the annular convex platform is slightly greater than that of the limiting hole to form interference fit. In the utility model, as the non-self-resetting pressure relief device with interference fit between the annular convex platform of the valve core and the limiting hole of the valve seat is arranged, pressure relief can be conducted when the electric pressure cooker abnormally works and the pressure exceeds rated safety pressure, and automatic resetting cannot be realized after pressure relief so as to ensure the safety in use of the electric pressure cooker.
Description
Technical field
The utility model relates to electric pressure cooking saucepan, especially a kind of safe pressure relief device of electric pressure cooking saucepan.
Background technology
Electric pressure cooking saucepan is owing to its cooking food power saving, save time, and is simple to operation, receives increasing people's favor.For safety, existing electric pressure cooking saucepan is equipped with pressure relief device, and when the pressure in electric pressure cooking saucepan surpassed normal rating pressure, if heating plate works on, at this moment, pressure relief device will start, and from pot, discharges gas and reduces pot inner pressure to guarantee safety.But present most electric pressure cooking saucepan pressure relief device is after the non-normal working pressure release appears in electric pressure cooking saucepan; As long as wait the pot cooling, can automatically reset, restart again; Electric pressure cooking saucepan can carry out culinary art work again, and this stays great potential safety hazard for the user in use in the future.
Summary of the invention
The purpose of the utility model is the shortcoming that overcomes prior art, and a kind of safe pressure relief device of electric pressure cooking saucepan is provided, and can non-normal working occur at electric pressure cooking saucepan; And during the over proof safe pressure of pressure; Carry out pressure release, can not automatically reset after the pressure release, to guarantee the safe in utilization of electric pressure cooking saucepan.
The technical scheme that realizes the utility model purpose is, a kind of safe pressure relief device of electric pressure cooking saucepan comprises pot cover, is provided with valve seat, spool and the spring of internal cavity; Valve seat is fixed on the pot cover, and spool is arranged in the valve seat internal cavity, and spring is nested with on spool; The spool top is provided with the valve gap of seal valve seat internal cavity; It is characterized in that said valve seat internal cavity is provided with spacing hole, on spool, is provided with annular boss; And annular boss is positioned at the spacing hole below of valve seat internal cavity, and the somewhat larger in diameter of annular boss forms interference fit in the diameter of spacing hole.
Annular boss on the above-mentioned spool for the spool structure that is formed in one; Or be fixedly connected with spool through pin by annular boss; Or cannelure is set on spool, and annular boss is rigid silica gel circle, annular boss is nested with in the spool cannelure fixing.
The inclined-plane is arranged in top, above-mentioned annular boss outer, is that annular boss can make progress and pass the spacing hole of valve seat internal cavity by force so that the pressure in the electric pressure cooking saucepan increases to a certain value.
Be provided with the valve bonnet seal circle between valve gap on the above-mentioned spool top and the valve seat internal cavity.
Above-mentioned valve seat is to be tightened on the valve seat bottom through nut to be fixed on the pot cover, is provided with valve seat insert between nut and the pot cover.
Internal cavity for fear of food obstruction valve seat is coated with Anti-stop cover in the valve seat lower end, is distributed with through hole on the Anti-stop cover.
When the utility model uses, in the electric pressure cooking saucepan cooking process, if the non-normal working situation; The pot internal gas pressure constantly rises, and when pressure reached predefined safe pressure, air pressure can promote valve gap, valve bonnet seal circle, spool and spring integral body and move upward; Annular boss on the spool can upwards push through the spacing hole of valve seat internal cavity; Sealing between valve gap and the valve seat internal cavity is destroyed, and gas discharges via Anti-stop cover, valve seat internal cavity, realizes pressure release.After the pressure release and since valve seat internal cavity spacing hole stop that spool can not automatically reset, can reuse after can only artificial repairing.
The beneficial effect of the utility model is; Owing to be provided with the pressure relief device of spool annular boss and this non-automatic-reset of valve seat spacing hole interference fit; Can non-normal working occur at electric pressure cooking saucepan, and during the over proof safe pressure of pressure, carry out pressure release; Can not automatically reset after the pressure release, guarantee the safe in utilization of electric pressure cooking saucepan.
Description of drawings
Fig. 1 is the structural representation of the electric pressure cooking saucepan of use the utility model;
Fig. 2 is the enlarged drawing of the utility model (the A part among Fig. 1) when being in sealing state;
Fig. 3 is the enlarged drawing of B part among Fig. 2;
Fig. 4 is the enlarged drawing of the utility model (the A part among Fig. 1) when being in the pressure release state, gas flow direction when arrow is represented pressure release among the figure.
The specific embodiment
Further specify below in conjunction with the specific embodiment of accompanying drawing the utility model.
Like Fig. 1, Fig. 2, shown in Figure 3, a kind of safe pressure relief device of electric pressure cooking saucepan comprises pot cover 1, is provided with valve seat 5, spool 4 and the spring 6 of internal cavity; Valve seat 5 is tightened on the valve seat bottom through nut 8 and is fixed on the pot cover 1; Be provided with valve seat insert 7 between nut 8 and the pot cover 1, spool 4 is arranged in valve seat 5 internal cavities, and spring 6 is nested with on spool 4; Be fixed with the valve gap 2 of seal valve seat internal cavity on spool 4 tops, be provided with valve bonnet seal circle 3 between valve gap 2 and valve seat 5 internal cavities; Said valve seat 5 internal cavities are provided with spacing hole 51, on spool 4, are provided with annular boss 41, and annular boss 41 is positioned at spacing hole 51 belows of valve seat 5 internal cavities, and the somewhat larger in diameter of annular boss 41 forms interference fit in the diameter of spacing hole 51, and is as shown in Figure 3.
Inclined-plane 411 is arranged in above-mentioned annular boss 41 outers tops, so that the pressure in the electric pressure cooking saucepan is when increasing to a certain value, annular boss 41 can make progress and pass the spacing hole 51 of valve seat 5 internal cavities by force.Through angle and height, i.e. the pressure release value under the adjustable voltage power pot abnormal condition of adjusting said inclined-plane 411.
Internal cavity for fear of food obstruction valve seat 5 is coated with Anti-stop cover 9 in valve seat 5 lower ends, is distributed with through hole on the Anti-stop cover 9.
When the utility model is installed; Earlier valve bonnet seal circle 3 is nested with after on the valve gap 2 and is placed on valve seat 5 tops together; The spool 4 that will be nested with spring 6 is again tightened with said modules, after presetting the pressure release force value, is inserted in the pot cover 1; Put into valve seat insert 7 backs and be tightened, install Anti-stop cover 9 again and get final product with nut 8.
When the utility model used, its integral installation is on the pot cover 1 of electric pressure cooking saucepan, and was as shown in Figure 1.In the electric pressure cooking saucepan cooking process, if in proper working order, then the utility model is in sealing state, and is as shown in Figure 2.If the non-normal working situation is as shown in Figure 4, the pot internal gas pressure constantly rises; When pressure reaches predefined safe pressure; Air pressure can promote valve gap 2, valve bonnet seal circle 3, spool 4 and spring 6 integral body and move upward, and the annular boss 41 on the spool 4 can upwards push through the spacing hole 51 of valve seat 5 internal cavities, and the sealing between valve gap 2 and valve seat 5 internal cavities is destroyed; Gas discharges via Anti-stop cover 9, valve seat 5 internal cavities, realizes pressure release.After the pressure release and since valve seat internal cavity spacing hole stop that spool can not automatically reset, can reuse after can only artificial repairing.Guarantee the safety used.
Claims (6)
1. the safe pressure relief device of an electric pressure cooking saucepan; Comprise pot cover (1), be provided with valve seat (5), spool (4) and the spring (6) of internal cavity; Valve seat (5) is fixed on the pot cover (1), and spool (4) is arranged in valve seat (5) internal cavity, and spring (6) is nested with on spool (4); Spool (4) top is provided with the valve gap (2) of seal valve seat (5) internal cavity; It is characterized in that said valve seat (5) internal cavity is provided with spacing hole (51), on spool (4), is provided with annular boss (41); And annular boss (41) is positioned at spacing hole (51) below of valve seat (5) internal cavity, and the somewhat larger in diameter of annular boss (41) forms interference fit in the diameter of spacing hole (51).
2. the safe pressure relief device of electric pressure cooking saucepan according to claim 1 is characterized in that, the annular boss (41) on the said spool (4) for spool (4) structure that is formed in one; Or annular boss (41) is fixedly connected with spool (4) through pin; Or on spool (4), cannelure is set, and annular boss (41) is rigid silica gel circle, annular boss (41) is nested with in the spool cannelure fixing.
3. the safe pressure relief device of electric pressure cooking saucepan according to claim 1 and 2 is characterized in that, inclined-plane (411) is arranged in top, said annular boss (41) outer.
4. the safe pressure relief device of electric pressure cooking saucepan according to claim 1 is characterized in that, is provided with valve bonnet seal circle (3) between valve gap (2) on said spool (4) top and valve seat (5) internal cavity.
5. the safe pressure relief device of electric pressure cooking saucepan according to claim 1; It is characterized in that; Said valve seat (5) is tightened on valve seat (5) bottom through nut (8) and is fixed on the pot cover (1), is provided with valve seat insert (7) between nut (8) and the pot cover (1).
6. the safe pressure relief device of electric pressure cooking saucepan according to claim 1 is characterized in that, is coated with Anti-stop cover (9) in said valve seat (5) lower end, and Anti-stop cover is distributed with through hole on (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220048478 CN202408459U (en) | 2012-02-15 | 2012-02-15 | Safety pressure relief device of electric pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220048478 CN202408459U (en) | 2012-02-15 | 2012-02-15 | Safety pressure relief device of electric pressure cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202408459U true CN202408459U (en) | 2012-09-05 |
Family
ID=46733256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220048478 Expired - Fee Related CN202408459U (en) | 2012-02-15 | 2012-02-15 | Safety pressure relief device of electric pressure cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202408459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106179157A (en) * | 2016-08-12 | 2016-12-07 | 胡海潮 | Quiet pressure release reactor |
-
2012
- 2012-02-15 CN CN 201220048478 patent/CN202408459U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106179157A (en) * | 2016-08-12 | 2016-12-07 | 胡海潮 | Quiet pressure release reactor |
| CN106179157B (en) * | 2016-08-12 | 2018-04-27 | 肇庆市正大化工机械设备有限公司 | Mute pressure release reaction kettle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20160215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |