CN202537147U - Protection structure of pressure cooking appliance - Google Patents
Protection structure of pressure cooking appliance Download PDFInfo
- Publication number
- CN202537147U CN202537147U CN2012200966456U CN201220096645U CN202537147U CN 202537147 U CN202537147 U CN 202537147U CN 2012200966456 U CN2012200966456 U CN 2012200966456U CN 201220096645 U CN201220096645 U CN 201220096645U CN 202537147 U CN202537147 U CN 202537147U
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- cooking appliance
- pressure cooking
- protection structure
- pressure
- protection valve
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Abstract
The utility model relates to a protection structure of a pressure cooking appliance. The pressure cooking appliance comprises an inner pan and a cover which are rigidly and integrally buckled to form a cooking cavity, wherein a protection valve is arranged on the pan cover, a gas inlet hole communicated with the cooking cavity is formed at the lower end of the protection valve, an exhaust hole communicated with the outside is formed at the upper end of the protection valve, and a sealing mechanism capable of sealing the gas inlet hole is arranged on the gas inlet hole; the sealing mechanism comprises a silica gel cork capable of plugging the gas inlet hole, or the sealing mechanism comprises an elastic membrane capable of wrapping the gas inlet hole, or the sealing mechanism comprises a hot melt body arranged in the protection valve, one end of the hot melt body is in flexible connection with a piston rod capable of elastically sealing the gas inlet hole, and a gap is reserved between the other end of the hot melt body and the inner wall of the protection valve. According to the utility model, the protection valve is increased to the pressure cooking appliance; when the pressure cooking appliance is in normal use, the protection valve is out of action; when the internal pressure of the pressure cooking appliance is too high, the protection valve plays a role in exhaust and pressure relief; and therefore, the use safety of the pressure cooking appliance is guaranteed to the greatest extent.
Description
Technical field
The utility model relates to a kind of pressure cooking appliance, specifically is a kind of protection structure of pressure cooking appliance.
Background technology
At present, generally has pressure control switch in the outer pot of the electric pressure cooking appliance of people's use.A kind of electric pressure cooking appliance was disclosed on June 27th, 2007 like Chinese patent document number CN2914931; Comprise a pot body, outer pot, interior pot, pot cover, heat-generating disc, but pot cover and outer pot or pot body rigidity are fastened on one, are provided with sealing ring between pot cover and interior pot; Interior pot places on the heat-generating disc; Heat-generating disc is installed on the elastomer of outer pot bottom, is equiped with gauge tap on heat-generating disc or the elastomer, and corresponding gauge tap position is provided with catch bar on the outer pot; Wherein be equiped with touch part on heat-generating disc or elastomer or the gauge tap, be equiped with the cut-off switch that when gauge tap lost efficacy, can contact on outer pot or the catch bar with touch part.The assembly structure of this structure control switch and cut-off switch is comparatively complicated, and fault rate is higher.Therefore, need further to improve.
The utility model content
The purpose of the utility model aims to provide the protection structure of a kind of simplicity of design, rational in infrastructure, pressure cooking appliance that cost of manufacture is low, safe and reliable, to overcome weak point of the prior art.
Press the protection structure of a kind of pressure cooking appliance of this purpose design; Said pressure cooking appliance comprises that rigidity is fastened on the interior pot and the pot cover of one; Both form cooking cavity, and pot cover is provided with protective valve, and its architectural feature is that the lower end of protective valve is provided with the air admission hole that is communicated with cooking cavity; The upper end is provided with the steam vent that is in communication with the outside, and air admission hole is provided with the closing means that can seal it.
Said closing means comprises the silica gel plug that can clog air admission hole.
The corresponding air admission hole of the upper and lower end of said silica gel plug is provided with elastic silica gel, and perhaps, the outer rim of silica gel plug is provided with elastic silica gel.
Said closing means comprises the elastic membrane that can wrap air admission hole.
The top of corresponding elastic membrane is provided with the spine that can puncture said elastic membrane in the said protective valve.
Said closing means comprises the hot melt that is arranged in the protective valve, but hot melt one end is connected with the piston rod of enclosed elastic air admission hole, between an other end and the protective valve inwall space is arranged.
Also be provided with spring on the said piston rod.
The utility model is set up protective valve at pressure cooking appliance; When pressure cooking appliance normally used, protective valve was inoperative, when pressure is excessive in the pressure cooking appliance; Protective valve plays exhaust pressure relief, can guarantee the safe in utilization of pressure cooking appliance to greatest extent.It is simple and reasonable, cost of manufacture is low, and is applied widely.
Description of drawings
Fig. 1 is the structural representation of the utility model first embodiment.
Fig. 2 is the user mode reference diagram of first embodiment.
Fig. 3 is the structural representation of the utility model second embodiment.
Fig. 4 is the user mode reference diagram of second embodiment.
Fig. 5 is the structural representation of the utility model the 3rd embodiment.
Fig. 6 is the user mode reference diagram of the 3rd embodiment.
Fig. 7 is the another user mode reference diagram of the 3rd embodiment
Fig. 8 is the structural representation of the utility model the 4th embodiment.
Fig. 9 is the user mode reference diagram of the 4th embodiment.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
First embodiment
Referring to Fig. 1-Fig. 2; The protection structure of this pressure cooking appliance, said pressure cooking appliance comprise that rigidity is fastened on interior pot (not marking among the figure) and the pot cover 1 of one, and both form cooking cavity; Pot cover 1 is provided with protective valve 2; The lower end of its protective valve 2 is provided with the air admission hole 2.1 that is communicated with cooking cavity, and the upper end is provided with the steam vent 2.2 that is in communication with the outside, and air admission hole 2.1 is provided with the closing means that can seal it.Closing means comprises the silica gel plug 3 that can clog air admission hole 2.1.The corresponding air admission hole 2.1 of the upper and lower end of silica gel plug 3 is provided with elastic silica gel, and elastic silica gel plays sealing air admission hole 2.1.When pressure cooking appliance normally used, protective valve 2 was inoperative, and silica gel plug 3 clogs air admission hole 2.1; Reasons such as the relief valve that on pressure cooking appliance, is provided with, circuit control device inefficacy cause when pressure is excessive in it, and silica gel plug 3 is ejected by the high pressure in it; Gas in the cooking cavity gets into protective valve 2 from air admission hole 2.1; Discharge through steam vent 2.2, protective valve 2 plays exhaust pressure relief, can guarantee the safe in utilization of pressure cooking appliance to greatest extent again.
This protective valve 2 is disposable wearing detail, and each use all needs to change later, uses such as therefore general cooperation relief valve, circuit control device, and its cost is lower, therefore, even use the use cost that also can not roll up the user separately.If the protective valve 2 of present embodiment causes openable design, after protective valve 2 each the uses, only need to fill in silica gel plug 3 again in the air admission hole 2.1, can realize unlimited use.
Second embodiment
Referring to Fig. 3-Fig. 4; The protection structure of this pressure cooking appliance; Be that with the main distinction of first embodiment outer rim of silica gel plug 3 is provided with elastic silica gel, it is compared with first embodiment, and the air pressure pressure values that the protective valve 2 of present embodiment is protected is lower; Be more suitable for being used as separately pressure release, further reduce the cost of pressure cooking appliance.Other do not state part, with first embodiment, no longer repeat.
The 3rd embodiment
Referring to Fig. 5-Fig. 7, the protection structure of this pressure cooking appliance is that with the main distinction of first embodiment closing means comprises the elastic membrane 4 that can wrap air admission hole 2.1.The air pressure pressure values that present embodiment protective valve 2 is protected depends primarily on material, thickness of elastic membrane 4 etc.When pressure cooking appliance normally used, deformation can take place in elastic membrane 4, and was as shown in Figure 6; When the pressure in the pressure cooking appliance was excessive, elastic membrane 4 can be swarmed in, at this moment; Gas in the cooking cavity gets into protective valve 2 from air admission hole 2.1, discharges through steam vent 2.2 again, and protective valve 2 plays exhaust pressure relief.Elastic membrane 4 is after deformation repeatedly, and its shape may change, and causes it can not to be swarmed at preset value, and for addressing this problem, the top of corresponding elastic membrane 4 is provided with the spine that can puncture said elastic membrane 4 in the protective valve 2.As shown in Figure 7, as long as the cooking cavity internal gas pressure reaches preset value, elastic membrane 4 will expand into specific size, can touch spine 5 simultaneously and is punctured by it.After elastic membrane 4 is punctured, all need to change, when this pressure cooking appliance dispatches from the factory, can be equipped with the usefulness that several elastic membranes 4 are done replacing, its protection effect is remarkable, and cost is lower, can not increase too many extra cost.Other do not state part, with first embodiment, no longer repeat.
The 4th embodiment
Referring to Fig. 8-Fig. 9; The protection structure of this pressure cooking appliance; Be that with the main distinction of first embodiment closing means comprises the hot melt 6 that is arranged in the protective valve 2; But hot melt one end is connected with the piston rod 7 of enclosed elastic air admission hole 2.1, between an other end and protective valve 2 inwalls space is arranged.Also be provided with spring 8 on the piston rod 7.
When pressure cooking appliance normally used, hot melt 6 withstood piston rod 7, thus sealing air admission hole 2.1, and protective valve 2 is inoperative.When pressure is excessive in the pressure cooking appliance, follow rising in the cooking cavity, heat is delivered on the hot melt 6; When the temperature of hot melt 6 was elevated to fusing point, the limit can be melted, at this moment; Piston rod 7 oppositely pushes away at the following hot melt 6 of the effect of spring 8, and air admission hole 2.1 is opened simultaneously, and the gas in the cooking cavity gets into protective valve 2 from air admission hole 2.1; Discharge through steam vent 2.2, protective valve 2 plays exhaust pressure relief again.Other do not state part, with first embodiment, no longer repeat.
Claims (7)
1. the protection structure of a pressure cooking appliance; Said pressure cooking appliance comprises that rigidity is fastened on the interior pot and the pot cover (1) of one; Both form cooking cavity, and pot cover (1) is provided with protective valve (2), it is characterized in that the lower end of protective valve (2) is provided with the air admission hole (2.1) that is communicated with cooking cavity; The upper end is provided with the steam vent (2.2) that is in communication with the outside, and air admission hole (2.1) is provided with the closing means that can seal it.
2. according to the protection structure of the said pressure cooking appliance of claim 1, it is characterized in that said closing means comprises the silica gel plug (3) that can clog air admission hole (2.1).
3. according to the protection structure of the said pressure cooking appliance of claim 2, it is characterized in that the corresponding air admission hole of upper and lower end (2.1) of said silica gel plug (3) is provided with elastic silica gel, perhaps, the outer rim of silica gel plug (3) is provided with elastic silica gel.
4. according to the protection structure of the said pressure cooking appliance of claim 1, it is characterized in that said closing means comprises the elastic membrane (4) that can wrap air admission hole (2.1).
5. according to the protection structure of the said pressure cooking appliance of claim 4, it is characterized in that the top of corresponding elastic membrane (4) in the said protective valve (2) is provided with the spine (5) that can puncture said elastic membrane (4).
6. according to the protection structure of the said pressure cooking appliance of claim 1; It is characterized in that said closing means comprises the hot melt (6) that is arranged in the protective valve (2); But hot melt one end is connected with the piston rod (7) of enclosed elastic air admission hole (2.1), between an other end and protective valve (2) inwall space is arranged.
7. according to the protection structure of the said pressure cooking appliance of claim 6, it is characterized in that also being provided with on the said piston rod (7) spring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200966456U CN202537147U (en) | 2012-03-14 | 2012-03-14 | Protection structure of pressure cooking appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200966456U CN202537147U (en) | 2012-03-14 | 2012-03-14 | Protection structure of pressure cooking appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202537147U true CN202537147U (en) | 2012-11-21 |
Family
ID=47157851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200966456U Expired - Fee Related CN202537147U (en) | 2012-03-14 | 2012-03-14 | Protection structure of pressure cooking appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202537147U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237581A (en) * | 2020-01-09 | 2020-06-05 | 中国安全生产科学研究院 | Emergency disposal device for oil pipeline leakage |
| CN111281133A (en) * | 2018-12-07 | 2020-06-16 | Bsh家用电器有限公司 | Protection of multiple cookers by a closure mechanism |
-
2012
- 2012-03-14 CN CN2012200966456U patent/CN202537147U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111281133A (en) * | 2018-12-07 | 2020-06-16 | Bsh家用电器有限公司 | Protection of multiple cookers by a closure mechanism |
| CN111281133B (en) * | 2018-12-07 | 2022-10-28 | Bsh家用电器有限公司 | Protection of multiple cookers by a closure mechanism |
| CN111237581A (en) * | 2020-01-09 | 2020-06-05 | 中国安全生产科学研究院 | Emergency disposal device for oil pipeline leakage |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20160314 |