CN2902105Y - Pressure control device of pressure cooker - Google Patents
Pressure control device of pressure cooker Download PDFInfo
- Publication number
- CN2902105Y CN2902105Y CN 200620054742 CN200620054742U CN2902105Y CN 2902105 Y CN2902105 Y CN 2902105Y CN 200620054742 CN200620054742 CN 200620054742 CN 200620054742 U CN200620054742 U CN 200620054742U CN 2902105 Y CN2902105 Y CN 2902105Y
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- China
- Prior art keywords
- pressure
- exhaust
- exhaust shaft
- sensitive
- cooker
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Abstract
The utility model discloses a stress-control apparatus for a pressure-cooker comprising a sensing mechanism and a pressure-regulating device. Wherein: the sensing mechanism comprises a sealed gasket with a connecting hole and fixed on a cover of the pressure-cooker and a sensing hammer relative to the position of the connecting hole. The utility model is characterized in that: a sensing rod, capable of sliding along the connecting hole of the sealed gasket and sealing the air in the pressure-cooker in condition of rest or motion, is disposed on the sensing hammer, the pressure-regulating device comprises a exhaust shaft bracket arranged on the cover of the pressure-cooker, a exhaust shaft disposed on the exhaust shaft bracket, and a exhaust teleflex capable of rotating and sliding disposed on the exhaust shaft and sealing air. The sliding of the sensing rod and the sensing hammer can reflect precisely the change of the stress in the pressure-cooker, and the pressure-regulating device can conduct air and regulate the air stress initiatively according to the regulating signal giving by the sensing mechanism. The utility model has the advantages of higher sensing sensitivity, precisely controlling, higher efficiency and higher safety and reliability.
Description
Technical field
The utility model relates to the pressure control device that a kind of pressure cooker is used.
Background technology
In the prior art, the single pressure-sensitive hammer pressure limiting valve mechanism of the many employings of the pressure control device that common pressure cooker is used.The pressure control effect of mechanism by cooperating of pressure-sensitive action and pressure regulation action finishing pressure cooker, its pressure-sensitive action and pressure regulation action are all finished by the pressure-sensitive hammer, the compression face decision that the pressure-sensitive effect is mainly hammered into shape by pressure-sensitive.Enough big so that the pressure-sensitive peen is risen unsettled when the pot internal gas pressure, the area that actual pressurized is hammered in pressure-sensitive into shape changes, and the pressure changing in the pot is no longer moved by the slippage of pressure-sensitive hammer and reflected, causes the pressure-sensitive inaccuracy, influences follow-up voltage regulation result.And its voltage regulation result is mainly realized by the pressure release action of pressure-sensitive hammer steam vent, makes the pressure in the pot can not surpass default pressure threshold value, to realize the voltage regulation result of pressure cooker.But its steam vent is generally all very little, and in the exhaust pressure relief process in reality, the assorted bits in the pot are discharged with air-flow easily, and steam vent is blocked easily, and voltage regulation result is relatively poor, causes the generation of pressure cooker explosion phenomenon probably, has certain potential safety hazard in the use.And, during the pressure release of pressure-sensitive hammer, must be subjected to the percussion of pressure release air-flow, the pressure regulation action will be disturbed the pressure-sensitive effect, makes inspection press inaccuracy, and the overall pressure control effect of pressure cooker also just can't accurately realize.
Summary of the invention
The purpose of this utility model provides a kind of accurate, safe and reliable pressure control unit of pressure cooker of controlling.
Goal of the invention of the present utility model is achieved in that the pressure control device that a kind of pressure cooker is used, comprise pressure sensitive mechanism and pressure regulating device, wherein, pressure sensitive mechanism comprises on the fixation pressure pot cover and has the sealing shroud of a connecting hole and the pressure-sensitive hammer corresponding with connecting hole position on the sealing shroud.It is characterized in that: described pressure-sensitive hammer is provided with and can slides and the pressure-sensitive bar of gas in inactive state and all salable pot of motion state along the sealing shroud connecting hole; Described pressure regulating device comprises the exhaust shaft support that is located on the pressure cooker cover and is contained in exhaust shaft on the exhaust shaft support, is with the also exhaust pivoted housing of salable gas that can rotate on exhaust shaft and slide on the exhaust shaft.
Described pressure-sensitive hammer is connected with pressure-sensitive bar one, and pressure-sensitive hammer side has an annular groove.
The fit clearance of the connecting hole of described sealing shroud and pressure-sensitive bar is between 0.004mm to 0.07mm.
The surface roughness of connecting hole is between Ra 0.012 μ m to Ra 0.8 μ m on the described sealing shroud.
The side surface roughness of described pressure-sensitive bar is between Ra 0.012 μ m to Ra 0.8 μ m.
Be provided with sealing gasket and nut between described exhaust shaft support and the pressure cooker cover, the side direction through hole that has a cavity on the exhaust shaft support and be connected with cavity.
Described exhaust shaft is connected on the side direction through hole of exhaust shaft support by axle body one end, be provided with sealing gasket and fastening cap between the side direction through hole of axle body end and exhaust shaft support, exhaust shaft is provided with the side direction through hole that a discharge chamber reaches at least two axis symmetries and communicates with discharge chamber, and discharge chamber is connected with exhaust shaft support upper plenum on the exhaust shaft.
Discharge chamber one end on the described exhaust shaft is provided with the end cap that is connected with discharge chamber.
Described exhaust pivoted housing is provided with and can drives the fork that the exhaust pivoted housing rotates, exhaust pivoted housing one end have at least two with exhaust shaft on the steam vent that matches of side direction through hole.
The fit clearance of described exhaust shaft and exhaust pivoted housing two mating surfaces is between 0.004mm to 0.07mm.
The surface roughness of the outer surface of described exhaust shaft and exhaust pivoted housing cooperation place is between Ra 0.012 μ m to Ra 0.8 μ m.
The surface roughness of the inner surface of described exhaust pivoted housing is between Ra 0.012 μ m to Ra 0.8 μ m.
The pressure control device that the utility model is used existing pressure cooker improves, and the pressure sensitive mechanism of pressure cooker and pressure regulating device separate come out from the mechanism of both traditional combinations, has avoided both phase mutual interference in the operation.Pressure-sensitive bar and sealing shroud, exhaust shaft and exhaust pivoted housing all use and seal movingly that form couples together, both can effectively seal a pot interior gas, make pot inner pressure and suffered external active force keep certain stable relation, pressure-sensitive and pressure regulation are quick on the draw, pressure regulation efficient height effectively improves the pressure control accuracy of single unit system.Exhaust shaft support and exhaust shaft steam vent in the pressure regulating device are enough big, and mechanism's pressure release is rapid, can effectively avoid steam vent to stop up, and have got rid of the generation of pressure cooker explosion phenomenon, and be actual safe and reliable.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model most preferred embodiment.
Accompanying drawing 2 is the structural representation of pressure regulating device in the utility model.
The specific embodiment
The utility model will be further described below in conjunction with accompanying drawing.
According to embodiment illustrated in figures 1 and 2, the utility model pressure control unit of pressure cooker comprises pressure sensitive mechanism and pressure regulating device.Wherein, pressure sensitive mechanism comprises on the fixation pressure pot cover 1 and has the sealing shroud 2 of a connecting hole, the pressure-sensitive corresponding with connecting hole position on the sealing shroud 2 hammer 3 and cooperate the pressure-sensitive bar 4 of installation with the connecting hole of sealing shroud 2.Be provided with seal washer 13 and nut 14 between sealing shroud 2 and the pressure cooker cover 1, pressure-sensitive bar 4 is hammered 3 one into shape with pressure-sensitive and is connected, pressure-sensitive bar 4 gas and can drive pressure-sensitive and hammer 3 into shape and slide along sealing shroud 2 connecting holes in all salable pot of inactive state and motion state.Because 4 gas pressures that are subjected to making progress in the pot at the place, bottom surface of pressure-sensitive bar, compression area is constant, make the total force of pot interior pressure and pressure-sensitive hammer 3, pressure-sensitive bar 4 keep stable relation, pressure changing in the pressure cooker can be reflected fully by the sliding condition of pressure-sensitive bar 4 drive pressure-sensitive hammers 3, so can be by the just predeterminable pressure threshold value of deciding pressure cooker of weight of default pressure-sensitive hammer 3.Fit clearance between connecting hole on the sealing shroud 2 and the pressure-sensitive bar 4 is between 0.004mm to 0.07mm, with 0.03mm is best, and both junction mating surface surface roughnesses at least one between Ra 0.012 μ m to Ra 0.8 μ m, preferably both all adopt Ra 0.4 μ m, make gas in the both salable pot of pressure-sensitive bar 4, it is smooth and easy also can to guarantee to slide on sealing shroud 2.In the pressure regulating device, exhaust shaft support 5 is fixedly mounted on the pressure cooker cover 1 by sealing gasket 8 and nut 9, the side direction through hole which is provided with a cavity and can be communicated with cavity.Exhaust shaft 6 is connected on the side direction through hole of exhaust shaft support 5 by axle body one end, it is fastening with exhaust shaft support 5 with sealing gasket 10 and fastening cap 11 that it connects the axle body end, and the side direction through hole that has a discharge chamber and at least two axis symmetries on the exhaust shaft 6 and communicate with discharge chamber, side direction through hole on the exhaust shaft 6 is to adopt two for good, in addition, the discharge chamber on the exhaust shaft 6 can be connected with the cavity on the exhaust shaft support 5.Discharge chamber one end on exhaust shaft 6 is provided with the end cap 12 that is connected with discharge chamber.Because exhaust shaft 6 and exhaust shaft support 5 are not all made the encapsulation process of gas away from the discharge chamber of fastening cap one end junction and exhaust shaft 6 and the junction of end cap 12, the interior gas of pot can slightly release from this two junction.Exhaust pivoted housing 7 is enclosed within on the exhaust shaft 6, and can rotate on exhaust shaft 6 and that slide and salable gas.And have on the exhaust pivoted housing 7 at least two with exhaust shaft 6 on the steam vent that matches of side direction through hole, steam vent is to adopt two for good.The fit clearance of exhaust pivoted housing 7 and 6 liang of mating surfaces of exhaust shaft is between 0.004mm to 0.07mm, with 0.03mm is best, and the surface roughness of both junction mating surfaces at least one between Ra 0.012 μ m to Ra 0.8 μ m, all adopt Ra 0.4 μ m best with both.Be provided with on exhaust pivoted housing 7 and can drive the fork that exhaust pivoted housing 7 rotates, this fork can receive extraneous pressure sensitive mechanism and send the pressure regulation signal and then drive 7 rotations of exhaust pivoted housing.
During real work, when the pressure cooker internal pressure does not reach the controlled pressure threshold values that presets, be the interior pressure P of total force G＞pot * pressure-sensitive area S of pressure-sensitive hammer 3 and pressure-sensitive bar 4, pressure-sensitive hammer 3 is because gravity effect and static, fork is failure to actuate, the side direction through hole of steam vent on the exhaust pivoted housing 7 and exhaust shaft 5 staggers, and to reach the effect of sealing gas, the pot internal gas pressure can continue to increase.When the pressure cooker internal pressure surpasses the controlled pressure threshold values that presets, be the interior pressure P of total force G＜pot * pressure-sensitive area S of pressure-sensitive hammer 3 and pressure-sensitive bar 4, pressure-sensitive bar 3 drives pressure-sensitive hammer 4 and upwards slides, the fork that drive places pressure-sensitive to hammer into shape in 4 annular grooves is swung, and drive exhaust pivoted housing 7 rotates, the steam vent on the exhaust pivoted housing 7 and the side direction through hole of exhaust shaft are joined, gas can be leaked by exhaust shaft support 5 and exhaust shaft 6 guiding in the pot, during this time, because exhaust pivoted housing 7 is subjected to the effect of bilateral side leakage air-flow and is suspended on the exhaust shaft 6, can reduce during exhaust pivoted housing 7 action and exhaust shaft 6 between frictional force, exhaust pivoted housing 7 is quick on the draw, pressure regulation is timely.Reduce to rapidly below the controlled pressure threshold values that presets when pot inner pressure, pressure-sensitive bar 4 drive pressure-sensitive hammers 3 move down and reset, making fork drive exhaust pivoted housing 7 rotates, the side direction through hole of steam vent on the exhaust pivoted housing 7 and exhaust shaft staggers, to reach the effect of sealing gas, pot inner pressure no longer descends and enters the rise stage, realizes the purpose of direct, the effective and accurate pressure regulation of pressure cooker.
Claims (12)
1. pressure control unit of pressure cooker, comprise pressure sensitive mechanism and pressure regulating device, wherein, pressure sensitive mechanism comprises that fixation pressure pot cover (1) goes up and have the sealing shroud (2) of a connecting hole and go up the corresponding pressure-sensitive hammer (3) in connecting hole position with sealing shroud (2), it is characterized in that: described pressure-sensitive hammer (3) is provided with and can slides and the pressure-sensitive bar (4) of gas in inactive state and all salable pot of motion state along sealing shroud (2) connecting hole; Described pressure regulating device comprises the exhaust shaft support (5) that is located on the pressure cooker cover (1) and is contained in exhaust shaft (6) on the exhaust shaft support (5), is with one on the exhaust shaft (6) and can goes up at exhaust shaft (6) and rotate and slide and the exhaust pivoted housing (7) of salable gas.
2. according to the described pressure control unit of pressure cooker of claim 1, it is characterized in that: described pressure-sensitive hammer (3) is connected with pressure-sensitive bar (4) one, and pressure-sensitive hammer (3) side has an annular groove.
3. according to the described pressure control unit of pressure cooker of claim 1, it is characterized in that: the fit clearance of the connecting hole of described sealing shroud (2) and pressure-sensitive bar (4) is between 0.004mm to 0.07mm.
4. according to the described pressure control unit of pressure cooker of claim 1, it is characterized in that: described sealing shroud (2) is gone up the surface roughness of connecting hole between Ra 0.012 μ m to Ra 0.8 μ m.
5. according to the described pressure control unit of pressure cooker of claim 1, it is characterized in that: the side surface roughness of described pressure-sensitive bar (4) is between Ra 0.012 μ m to Ra 0.8 μ m.
6. according to the described pressure control unit of pressure cooker of claim 1, it is characterized in that: be provided with sealing gasket (8) and nut (9) between described exhaust shaft support (5) and the pressure cooker cover (1), the side direction through hole that has a cavity and be connected on the exhaust shaft support (5) with cavity.
7. according to the described pressure cooker pressure regulating device of claim 1, it is characterized in that: described exhaust shaft (6) is connected on the side direction through hole of exhaust shaft support (5) by axle body one end, be provided with sealing gasket (10) and fastening cap (11) between the side direction through hole of axle body end and exhaust shaft support (5), exhaust shaft (6) is provided with the side direction through hole that a discharge chamber reaches at least two axis symmetries and communicates with discharge chamber, and exhaust shaft (6) is gone up discharge chamber and is connected with exhaust shaft support (2) upper plenum.
8. according to the described pressure cooker pressure regulating device of claim 7, it is characterized in that: discharge chamber one end on the described exhaust shaft (6) is provided with the end cap (12) that is connected with discharge chamber.
9. according to the described pressure cooker pressure regulating device of claim 1, it is characterized in that: described exhaust pivoted housing (7) is provided with and can drives the fork that exhaust pivoted housing (7) rotates, and exhaust pivoted housing (7) one ends have at least two steam vents that match with the last side direction through hole of exhaust shaft (6).
10. according to the described pressure cooker pressure regulating device of claim 1, it is characterized in that: the fit clearance of described exhaust shaft (6) and exhaust pivoted housing (7) two mating surfaces is between 0.004mm to 0.07mm.
11. according to the described pressure cooker pressure regulating device of claim 1, it is characterized in that: the surface roughness of the outer surface of described exhaust shaft (6) and exhaust pivoted housing (7) cooperation place is between Ra 0.012 μ m to Ra 0.8 μ m.
12. according to the described pressure cooker pressure regulating device of claim 1, it is characterized in that: the surface roughness of the inner surface of described exhaust pivoted housing (7) is between Ra 0.012 μ m to Ra 0.8 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620054742 CN2902105Y (en) | 2006-01-27 | 2006-01-27 | Pressure control device of pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620054742 CN2902105Y (en) | 2006-01-27 | 2006-01-27 | Pressure control device of pressure cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2902105Y true CN2902105Y (en) | 2007-05-23 |
Family
ID=38077507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620054742 Expired - Fee Related CN2902105Y (en) | 2006-01-27 | 2006-01-27 | Pressure control device of pressure cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2902105Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861690A (en) * | 2012-09-14 | 2013-01-09 | 苏州工业园区七星电子有限公司 | Pressurizing device of building |
| CN105451610A (en) * | 2013-07-15 | 2016-03-30 | 金且植 | Electric rice cooker |
-
2006
- 2006-01-27 CN CN 200620054742 patent/CN2902105Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861690A (en) * | 2012-09-14 | 2013-01-09 | 苏州工业园区七星电子有限公司 | Pressurizing device of building |
| CN105451610A (en) * | 2013-07-15 | 2016-03-30 | 金且植 | Electric rice cooker |
| CN105451610B (en) * | 2013-07-15 | 2017-11-17 | 金且植 | Electric cooker |
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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 |