CN1626014A - Steam blow off equipment of pressure cooker - Google Patents
Steam blow off equipment of pressure cooker Download PDFInfo
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- CN1626014A CN1626014A CN 200310107390 CN200310107390A CN1626014A CN 1626014 A CN1626014 A CN 1626014A CN 200310107390 CN200310107390 CN 200310107390 CN 200310107390 A CN200310107390 A CN 200310107390A CN 1626014 A CN1626014 A CN 1626014A
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- steam discharge
- pressure cooker
- steam
- barrier film
- discharge device
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Abstract
A steam discharging structure for pressure cooker is composed of upper and lower installing plates, elastic element and diaphragm of conic steam discharging hole. Its advantages are less generation of scale, and smooth steam discharge without edddy.
Description
Technical field
What the present invention relates to is pressure cooker, particularly be the steam discharge device that discharges steam pressure cooker.
Background technology
Usually, to be divided into the pressure cooker and the employing electric power that adopt gas furnace etc. to cook for heating source be the electric pressure cooking saucepan that heating source is cooked to pressure cooker.
Described electric pressure cooking saucepan, its inner high pressure conditions that keeps utilizes the heating-up temperature that is higher than normal pressure to cook, thereby can finish the cooking rapidly when cooking.
The steam discharge device of above-mentioned electric pressure cooking saucepan maintains in the suitable scope steam pressure in the pot under the control of micro computer (not having expression among the figure).
Detailed with reference to the accompanying drawings explanation steam discharge structure in the past.
As the existing steam discharge device of expression among Fig. 1 to Fig. 3.Described steam discharge device comprises: installing plate; Pressure control valve 20; Electromagnetic valve 30; Safety-valve 40.
Described installing plate comprises upper mounting plate 11 and lower installation board 12, and lower installation board 12 is fixed on the electric hot plate (not expression among the figure) of pot cover inner face, has formed several steam discharge holes 12a, 12b, 12c in the position of corresponding each valve 20,30,40.
Described each steam discharge hole 12a, 12b, 12c are opened or closed by each valve 20,30,40 controls, the position that forms steam discharge hole 12a, 12b, 12c at lower installation board 12 is provided with the area of area greater than each valve 20,30,40 sealing surfaces respectively, and boss 12d, the 12e that projects upwards increases sealing with this.
Described each steam discharge hole 12a, 12b, 12c communicate with gland steam exhauster 50 by the space that forms between upper mounting plate 11 and the lower installation board 12.
As shown in Figure 2, pressure control valve 20 comprises: be arranged on the 1st spring 21 on the upper mounting plate 11; The upper end is connected with the 1st spring 21, and the 1st flange 22 of exerting pressure downwards under the effect of the 1st spring 21; Be arranged on the lower end of the 1st flange 22, directly contact, seal the 1st barrier film 23 of the 1st steam discharge hole 12a with the 1st boss 12d that has formed the 1st steam discharge hole 12a.
The main effect of described the 1st barrier film 23 is to prevent that the 1st spring 21 and the 1st flange 22 are directly exposed in the middle of the steam.
When the pressure in the pot reached the elastic force that can overcome the 1st spring 21, the 1st spring 21 pressurizeds of pressure control valve 20 rose the 1st flange 22 and the 1st barrier film 23, and the 1st steam discharge hole 12a is decontroled.
As shown in Figure 3, described magnetic valve 30 belongs to the normal opening valve that seals the 2nd steam discharge hole 12b when applying voltage on coil.
Above-mentioned magnetic valve 30 comprises: but be positioned at the moving plate 31 of the central authorities of coil; But be positioned at the stator 32 of the below of moving plate 31; But be arranged on the 2nd spring 33 between moving plate 31 and the stator 32; But run through the 2nd flange 34 that stator 32 extends downwards from moving plate 31; Be arranged at the 2nd barrier film 35 of the 2nd flange 34 lower ends.
Before connecting power supply, under the resilient force of the 2nd spring 33, the 2nd flange 34 of magnetic valve 30 and the 2nd barrier film 35 keep the state of rising, make the 2nd steam discharge hole 12b keep open state, and when connecting power supply, but moving plate 31 descends, and meanwhile the 2nd flange 34 and the 2nd barrier film 35 also descend, and therefore seals described the 2nd steam discharge hole 12b.
As shown in Figure 2, safety-valve 40 comprises: the 3rd flange 41 of switch the 3rd steam discharge hole 12c; The 3rd spring 42 of exerting pressure for the 3rd flange 41 downwards.
Described safety-valve 40 is failure to actuate or gland steam exhauster during by shutoff at pressure control valve 20, when the pressure in the pot sharply increases, discharges a steam in the pot by the urgent delivery outlet 43 of steam.
But in the above-mentioned existing steam discharge device, pressure control valve 20 has adopted when the 1st barrier film 23 and the 1st boss 12d face contact form and has sealed the 1st steam discharge hole 12a, therefore when exhaust steam owing to produce eddy current, it is bad to cause the steam discharge.
That is, when bump against the bottom surface of the steam vertical lifting of discharge and the 1st barrier film 23, can produce steam eddy current as shown in drawings, since the generation of eddy current, possible exhaust steam fully under common pressure.
May contain liquid foreign matter in the middle of the steam of discharging by the 1st steam discharge hole 12a,, thereby can't seal because foreign matter may adhere to fouling on the contact-making surface between the 1st barrier film 23 and the 1st boss 12d.
That is, on described the 1st boss 12d, during fouling, can produce small slit, therefore just can't make and keep certain pressure in the pot.
Particularly when the contact area between described the 1st barrier film 23 and the 1st boss 12d is big, it is faster that its sealing not only descends, also may be because the fouling of foreign matter, the 1st barrier film 23 is bonded on the 1st boss 12d fully, complete closed the 1st steam discharge hole 12a, thus when needs reduce pressure exhaust steam normally.
In addition, in the steam of discharging by the 1st steam discharge hole 12a, liquid foreign matter can't be discharged by gland steam exhauster 50, thereby in the fouling of the bottom of passage.
This is because the 1st boss 12d has projected upwards certain altitude from the 1st steam discharge hole 12a, and Ye Tai foreign matter can't flow into once more in the pot by the 1st steam discharge hole 12a and residue in the passage thus.
Summary of the invention
The objective of the invention is to be to overcome the deficiency of above-mentioned technology, a kind of discharge that makes steam membrane configuration of each smooth valve more is provided, and preventing foreign matter in the passage bottom fouling, the action that makes steam discharge device is the steam discharge device of pressure cooker more flexibly.
Solving the problems of the technologies described above the technical scheme that is adopted is: a kind of steam discharge device of pressure cooker includes: be fixed on the lower installation board that has an above steam discharge hole on the electric hot plate of pressure cooker lid inner face at least; Be fixed on the upper end of lower installation board, and form the upper mounting plate of any valve space between the lower installation board; Be installed on the flexible member on the valve space; The flange that pressurizes downwards under the effect of flexible member, the lower end that is arranged on flange has the barrier film of the enclosed construction of intilted gradually closed steam tap downwards.
The invention has the beneficial effects as follows: at first, the barrier film of steam discharge device of the present invention is that line contacts with blind hole when the closed steam tap, has therefore farthest reduced foreign matter fouling area, has prevented that effectively the valve event that the foreign matter fouling causes is bad.
Secondly, the diaphragm apparatus of steam discharge device of the present invention has adopted conical structure, has therefore prevented the generation of eddy current when exhaust steam, at suitable pressures exhaust steam smoothly.
At last, steam discharge device of the present invention enters in the pot the liquid foreign matter that contains in the steam of exporting by steam discharge hole once more by steam discharge hole, thereby has solved the problem of channel interior bottom surface fouling.
Description of drawings
Fig. 1 is the plane of existing pressure cooker steam discharge device;
Fig. 2 is the cutaway view of the I-I part among Fig. 1;
Fig. 3 is the cutaway view of the II-II part of Fig. 1;
Fig. 4 is the cutaway view of the internal structure major part of pressure cooker steam discharge device pressure-control valve of the present invention;
Fig. 5 is the movement state diagram of the pressure-control valve among Fig. 4;
Fig. 6 is the cutaway view of the another kind of form of pressure-control valve septation of the present invention.
The specific embodiment
The invention provides a kind of steam discharge device of pressure cooker, include: be fixed on the lower installation board 120 that has an above steam discharge hole on the electric hot plate of pressure cooker lid inner face at least; Be fixed on the upper end of lower installation board, and form the upper mounting plate 110 of any valve space between the lower installation board; Be installed on the flexible member 130 on the valve space; The flange 140 that pressurizes downwards under the effect of flexible member, the lower end that is arranged on flange 140 has the barrier film 150 of the enclosed construction of intilted gradually closed steam tap 121 downwards.
The position that forms steam discharge hole 121 above the described lower installation board 120 is the plane.Be provided with the wedge angle position, upper end that makes steam discharge hole 121 above the described lower installation board 120 and formed downward gradually inclined plane.
Shown in barrier film 150 form conical structure on the whole.
Formed the inboard of the enclosed construction 151 of assembling barrier film 150 in the lower end of flange 140, the mounting structure 142 that barrier film 150 and flange 140 are moved together.
Be formed with the retention tab 142a that has prevented that barrier film 150 breaks away from along its outer periphery on the described mounting structure 142.
The outward appearance of described mounting structure 142 is identical or identical haply with the outward appearance of enclosed construction 151.
Below in conjunction with accompanying drawing embodiments of the invention are elaborated.
To shown in Figure 6, the pressure control valve in the steam discharge device of embodiment of the invention pressure cooker comprises: lower installation board 120, upper mounting plate 110, flexible member 130, flange 140, barrier film 150 as Fig. 4.Described lower installation board 120 is fixed on the electric hot plate (not expression among the figure) of pressure cooker inner face, has at least more than one steam discharge hole 121.
Described upper mounting plate 110 is fixed on the upper end of lower installation board 120, and constitutes between the lower installation board 120 arbitrarily that valve is provided with space 111.
Described flexible member 130 is installed on valve and is provided with in the space 111, adopts helical spring usually.
One end of described flexible member 130 is fixed on the bottom surface of upper mounting plate 110, and the other end is connected on the flange 140.
As previously mentioned, the lower installation board 120 of pressure control valve is identical with the structure of the pressure control valve of existing structure with the structure of upper mounting plate 110 and flexible member 130.
But the structure of flange 140 of the present invention and barrier film 150 can solve the variety of issue that existing pressure control valve exists.
That is, have intilted gradually enclosed construction 151 downwards, seal the steam discharge hole 121 that forms on the lower installation board 120 thus, make and form the line contact between barrier film 150 and the steam discharge hole 121 in the lower end of described barrier film 150.
When the pressure in the pot during greater than setting, the enclosed construction 151 of barrier film 150 can be opened steam discharge hole 121 flexibly.
As shown in Figure 6, enclosed construction 151 can cut away formation from right-angle side and slope inwardly as shown in the figure, but preferably as Fig. 4 and shown in Figure 5, forms conical structure on the whole, because this spline structure when exhaust steam, can farthest prevent the steam and enclosed construction 151 vertical collisions of discharging.
If when the bottom surface of described enclosed construction 151 is planar structure, bump against with the steam of discharging, produce adverse current thus, thereby exhaust steam normally, and enclosed construction 151 is designed to conical structure, the inclined plane steering current is flowed, just exhaust steam smoothly.
Particularly, when containing liquid foreign matter in the steam and may adhere to enclosed construction 151 surperficial, if enclosed construction 151 is conical structures, when steam is mobile along the surface of enclosed construction 151, will wash away adhering to enclosed construction 151 lip-deep liquid foreign matters, make its very fast disengaging surface.
So, can solve its surface and go up the phenomenon that adheres to the foreign matter fouling by changing the shape of enclosed construction 151.
Described flange 140 has formed installed surface 141 for pressurization downwards under the effect of flexible member 130 along its side periphery.Form enclosed construction 151 inboards of assembling barrier film 150 in its lower end, also formed the mounting structure 142 that barrier film 150 moves with flange 140.
Periphery along the outside on mounting structure 142 has formed retention tab 142a, has prevented the disengaging of barrier film 150, and it adopts the identical conical structure of outward appearance and enclosed construction 151.
Certainly, except conical structure, described mounting structure 142 can also adopt similar various structure, structure as shown in Figure 6.
Because described barrier film 150 adopts soft material to make, therefore for the peripheral surface of the enclosed construction 151 that makes barrier film 150 can be correct be close to steam discharge hole 121 ends, the shape of mounting structure 142 preferably adopts the conical structure identical with the enclosed construction 151 of barrier film 150.
The pressure control valve of the embodiment of the invention makes the position of the top formation steam discharge hole 121 of lower installation board 120 form the plane all over or make the upper end wedge angle of steam discharge hole 121 form downward-sloping gradually inclined plane.
In other words, said structure makes the liquid foreign matter by steam discharge hole 121 flow valve inside pass through steam discharge hole 121 once more, and the inside of smooth feed pressure pot is prevented the fouling of foreign matter therewith.
The more detailed explanation of pressure cooker pressure inside adjustment process to realizing below by pressure control valve.
At first, through the regular hour when food begins to boil, steam pressure rises in the inside of pressure cooker after the culinary art beginning.
After the steam that pressure rises flows into the inside of steam discharge hole 121, pressure in pressure cooker surpasses setting pressure, when promptly reaching the force value of flexible member 130 that can the compression pressure by-pass valve control, described flexible member 130 is compressed and flange 140 risings, barrier film 150 also rose when flange 140 rose, and steam discharge hole 121 is open.Steam flows along the inclined plane of conical enclosed construction 151.
Even adhere to liquid foreign matter on the surface of enclosed construction 151, the steam that does not produce eddy current that also can be continued to flow dashes the surface from enclosed construction 151 smoothly.
Because the steam in the pot is discharged by open steam discharge hole 121, when the pressure in the pot was lower than setting pressure once more, under the effect of flexible member 130, flange 140 and barrier film 150 descended, and closed steam tap 121 makes and keeps suitable pressure in the pot.
When steam discharge hole 121 is open, with steam be expelled to valve between lower installation board 120 and the upper mounting plate 110 be provided with liquid foreign matter in the space along the inclined plane at the position that has formed steam discharge hole 121 inside of feed pressure pot once more.Thus, farthest avoided the gathering of described liquid foreign matter.
Claims (7)
1. the steam discharge device of a pressure cooker includes: be fixed on the lower installation board that has an above steam discharge hole on the electric hot plate of pressure cooker lid inner face at least; Be fixed on the upper end of lower installation board, and form the upper mounting plate of any valve space between the lower installation board; Be installed on the flexible member on the valve space; The downward flange of pressurization under the effect of flexible member, the lower end that it is characterized in that being arranged on flange (140) has the barrier film (150) of the enclosed construction of intilted gradually closed steam tap (121) downwards.
2. according to the steam discharge device of the pressure cooker described in the claim 1, it is characterized in that the position of formation steam discharge hole (121) above the described lower installation board (120) is the plane.
3. according to the steam discharge device of the pressure cooker described in the claim 1, it is characterized in that being provided with above the described lower installation board (120) the wedge angle position, upper end that makes steam discharge hole (121) and formed downward gradually inclined plane.
4. according to the steam discharge device of the pressure cooker described in the claim 1, barrier film shown in it is characterized in that (150) forms conical structure on the whole.
5. according to the steam discharge device of the pressure cooker described in the claim 1, it is characterized in that having formed the inboard of the enclosed construction (151) of assembling barrier film (150), the mounting structure (142) that barrier film (150) and flange (140) are moved together in the lower end of flange (140).
6. according to the steam discharge device of the pressure cooker described in the claim 5, it is characterized in that described mounting structure (142) upward is formed with the retention tab (142a) that has prevented that barrier film (150) breaks away from along its outer periphery.
7. according to the steam discharge device of the pressure cooker described in the claim 6, it is characterized in that the outward appearance of described mounting structure (142) is identical or identical haply with the outward appearance of enclosed construction (151).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310107390 CN1626014A (en) | 2003-12-12 | 2003-12-12 | Steam blow off equipment of pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310107390 CN1626014A (en) | 2003-12-12 | 2003-12-12 | Steam blow off equipment of pressure cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1626014A true CN1626014A (en) | 2005-06-15 |
Family
ID=34758190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310107390 Pending CN1626014A (en) | 2003-12-12 | 2003-12-12 | Steam blow off equipment of pressure cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1626014A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104586272A (en) * | 2014-12-24 | 2015-05-06 | 各慧丽 | Adjustable pot cover |
| CN105011744A (en) * | 2015-07-30 | 2015-11-04 | 佛山市顺德区美的电热电器制造有限公司 | Pressure adjusting mechanism and pressure cooker provided with pressure adjusting mechanism |
| WO2021129343A1 (en) * | 2019-12-24 | 2021-07-01 | 广东美的白色家电技术创新中心有限公司 | Pressure cooker and pressure release device thereof |
| CN114732276A (en) * | 2021-12-27 | 2022-07-12 | 浙江永达不锈钢制品有限公司 | Pressure limiting valve for pressure cooker |
-
2003
- 2003-12-12 CN CN 200310107390 patent/CN1626014A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104586272A (en) * | 2014-12-24 | 2015-05-06 | 各慧丽 | Adjustable pot cover |
| CN105011744A (en) * | 2015-07-30 | 2015-11-04 | 佛山市顺德区美的电热电器制造有限公司 | Pressure adjusting mechanism and pressure cooker provided with pressure adjusting mechanism |
| WO2021129343A1 (en) * | 2019-12-24 | 2021-07-01 | 广东美的白色家电技术创新中心有限公司 | Pressure cooker and pressure release device thereof |
| CN114732276A (en) * | 2021-12-27 | 2022-07-12 | 浙江永达不锈钢制品有限公司 | Pressure limiting valve for pressure cooker |
| CN114732276B (en) * | 2021-12-27 | 2023-12-19 | 浙江永达不锈钢制品有限公司 | Pressure limiting valve of pressure cooker |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |