CN101797118B - Gravity-type pressure-regulating and pressuring-limiting valve - Google Patents
Gravity-type pressure-regulating and pressuring-limiting valve Download PDFInfo
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- CN101797118B CN101797118B CN2010101134378A CN201010113437A CN101797118B CN 101797118 B CN101797118 B CN 101797118B CN 2010101134378 A CN2010101134378 A CN 2010101134378A CN 201010113437 A CN201010113437 A CN 201010113437A CN 101797118 B CN101797118 B CN 101797118B
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Abstract
The invention provides a gravity-type pressure-regulating and pressuring-limiting valve, belonging to the technical field of cooking utensils, and solving the problems that the existing pressure cooker pressure-limiting valve has complex whole structure, high manufacturing cost, inconvenient operation and incapability of indicating the state of regulating pressure. The gravity-type pressure-regulating and pressuring-limiting valve is arranged at the position of an exhaust pipe of a pressure pot cover and comprises a cylindrical valve seat which is fixed on the cooker cover and is positioned at the periphery of the exhaust pipe; the valve seat is internally provided with a valve body which is sheathed at the periphery of the exhaust pipe; the top part of the valve body is fixed with a valve cap which has a tip which can be buckled on the exhaust pipe, and is provided with an exhaust orifice; the valve body is provided with a weight body which can be hung on the valve body and can separate from the valve body or jack up the valve body when rising axially; the weight body and the valve seat are positioned circumferentially; the valve seat is internally provided with a pressure-regulating sleeve capable of rotating circumferentially; and a pressure-regulating structure which can drive the weight body to rise and fall when the pressure-regulating sleeve rotates is arranged between the pressure-regulating sleeve and the weight body. The gravity-type pressure-regulating and pressuring-limiting valve has the advantages of convenient pressure regulation and stable working performance and the like.
Description
Technical field
The invention belongs to the cooking apparatus technical field, relate to pressure cooker, especially relate to a kind of gravity-type pressure-regulating and pressuring-limiting valve.
Background technology
Pressure cooker is a kind of kitchen articles commonly used.Can reach certain air pressure in order to make in the pot, and outwards exhaust when the pot internal gas pressure surpasses the air pressure range of setting, a pressure limiting valve is set on pot cover.Existing pressure limiting valve is to be pressed on the blast pipe of pressure cooker cover through himself weight, realizes its pressure limiting function.But when boiling various food, pressure required in the pot can be different.At this moment, common way is weight of stack on pressure limiting valve, gains in weight through weight, makes in the pot to reach higher pressure.Though this method is feasible, operate cumbersome.Simultaneously, owing to weight separates with the pressure limiting valve valve body, so weight is lost easily when reality is used.
For this reason, people have carried out long-term exploration, have proposed various solutions.For example; The applicant had once developed many grades of pressure limiting valves of a kind of pressure cooker [application number: 200520046753.2], and this pressure limiting valve is arranged at the blast pipe place of pressure cooker lid, and blast pipe is in the center of valve body; On valve body, be provided with several steam vents; Described valve body top is provided with a bonnet, in valve body, is provided with a valve cage, is equipped with a spool that is connected mutually with bonnet in the valve cage; And the lower end of spool and valve cage all can be pressed on the blast pipe, between bonnet and valve cage, is provided with a spring.It changes the adjusting that realizes force value through the contact-making surface of valve cage and spool and blast pipe, and when stress surface was big, the force value of setting was just less; Stress surface hour, the force value of setting is just bigger.The applicant has also developed a kind of pressure cooker pressure-regulating and pressuring-limiting valve [application number: 200720113780.6], is arranged on the blast pipe place of pressure cooker lid, and valve seat is fixed on the pot cover; Spool is housed in valve seat, be provided with in the spool top, top being buckled on the blast pipe; On spool, have steam vent; Be provided with a pressure regulating seat cylindraceous between valve seat and the spool, a pressure spring that is enclosed within on the spool is housed between pressure regulating seat and spool, an end of pressure spring acts on the pressure regulating seat; The other end acts on the spool, is provided with between valve seat and the pressure regulating seat and when pressure regulating seat rotates, can drives the pressure regulating device that pressure regulating seat goes up and down.
Such scheme has solved the problem that prior art exists to a certain extent, but still exists weak point: 1, overall structure is comparatively complicated, and manufacturing cost is high, and long-term the use is easy to be damaged, and its pressure regulating performance reduces and reduces along with the spring performance.2, operate inadequately conveniently, can't indicate the pressure regulation state, bring inconvenience to the user.
Summary of the invention
The objective of the invention is to the problems referred to above, provide a kind of pressure that can carry out easily to regulate the gravity-type pressure-regulating and pressuring-limiting valve of stable work in work.
For achieving the above object, the present invention has adopted following technical proposal: this gravity-type pressure-regulating and pressuring-limiting valve is arranged at the blast pipe place of pressure cooker lid; Comprise the tubular valve seat that is fixed on the pot cover and is positioned at the blast pipe periphery; In valve seat, be provided with and be placed in the peripheral valve body of blast pipe, be fixed with bonnet at the top of valve body, this bonnet has can be buckled in top on the blast pipe; On bonnet, have steam vent; It is characterized in that described valve body is provided with and can be hung on increasing the weight of body and increase the weight of axon this increases the weight of that physical efficiency breaks away from valve body or with valve body jack-up when rising when described on the valve body, describedly increase the weight of body and valve seat is circumferentially located; In valve seat, be provided with the pressure-regulating sleeve that can circumferentially rotate, described pressure-regulating sleeve and increase the weight of to be provided with between the body when pressure-regulating sleeve rotates, can drive and increase the weight of the pressure adjusting structure that body goes up and down.
Owing to increase the weight of circumferentially location and axially can going up and down of body, and pressure-regulating sleeve can circumferentially rotate, when pressure-regulating sleeve circumferentially rotates, can drive like this and increase the weight of body through pressure adjusting structure, thus the adjusting of realization force value.Specifically, when pressure adjusting structure is in initial position, increases the weight of body and hang on the valve body, comprised the gravity that increases the weight of body in the top active force that blast pipe is applied this moment, so force value is maximum, promptly is in the high pressure shelves.When pressure-regulating sleeve turns an angle, to increase the weight of physical efficiency and break away from valve body, this moment, force value reduced, and promptly was in the low pressure shelves.When pressure-regulating sleeve is rotated further certain angle, increase the weight of body with valve body jack-up at this moment, top disengaging blast pipe is the exhaust shelves this moment.
In above-mentioned gravity-type pressure-regulating and pressuring-limiting valve, described pressure adjusting structure comprises two pressure regulation steps that are fixed on the pressure regulation post that increases the weight of the body bottom and are arranged on the pressure-regulating sleeve bottom, and described pressure regulation post can be on the pressure regulation step.
When the pressure regulation post does not contact with the pressure regulation step, increase the weight of body and hang on the valve body, be in the high pressure shelves this moment.When the pressure regulation post contacts with lower pressure regulation step, increase the weight of body and do not acting on the valve body, be in the low pressure shelves this moment.When the pressure regulation post contacts with higher pressure regulation step, increase the weight of body with valve body jack-up, be in the exhaust shelves this moment.The pressure adjusting structure here can be provided with two symmetrical groups, and two symmetrically arranged pressure regulation posts and two groups of symmetrically arranged pressure regulation steps promptly are set.
In above-mentioned gravity-type pressure-regulating and pressuring-limiting valve, described pressure regulation step sidepiece has the lifting inclined-plane respectively.Owing to be provided with the lifting inclined-plane, when the pressure regulation post circumferentially moves, can move to easily on the pressure regulation step.
In above-mentioned gravity-type pressure-regulating and pressuring-limiting valve; The described body that increases the weight of is placed in valve body lower portion; Have in valve body lower end and to prevent to increase the weight of the following blocking surface of axon to downward disengaging valve body, have on bonnet or the valve body when increase the weight of axon can be when moving up with valve body jack-up on blocking surface.Owing to be provided with down blocking surface, can make that increasing the weight of body is hung on the valve body.Since be provided with blocking surface, when increasing the weight of the body rising, can be with valve body jack-up.That is, increase the weight of being limited between blocking surface and the following blocking surface of body.
In above-mentioned gravity-type pressure-regulating and pressuring-limiting valve, be provided with the first circumferential location structure between described valve body and the valve seat, describedly increase the weight of to be provided with between body and the valve body the second circumferential location structure.
In above-mentioned gravity-type pressure-regulating and pressuring-limiting valve, the described first circumferential location structure comprises the projection that is fixed on the valve seat bottom and opens in valve body sidepiece and axially extended groove that described projection is plugged in the groove slidably.Through said structure, circumferential location and axially can relatively moving between valve seat and the valve body.
In above-mentioned gravity-type pressure-regulating and pressuring-limiting valve, the described second circumferential location structure comprises out that in valve body sidepiece and axially extended locating slot above-mentioned pressure regulation post is partially submerged in the locating slot and can slides along locating slot.Through said structure, increase the weight of circumferentially to locate between body and the valve body and axially can relatively move.
In above-mentioned gravity-type pressure-regulating and pressuring-limiting valve, be provided with between described valve seat and the pressure-regulating sleeve and can make pressure-regulating sleeve and valve seat axial location and circumferential syndeton of rotating.So just can control pressure-regulating sleeve easily and rotate, and pressure-regulating sleeve is not understood play up and down.
In above-mentioned gravity-type pressure-regulating and pressuring-limiting valve; Described syndeton comprises out the arc chute and the slide bar that is fixed on the pressure-regulating sleeve bottom in the valve seat bottom; Described slide bar is located in the arc chute, and has the retaining pin that prevents slide bar disengaging arc chute in the lower end of slide bar.The arc chute here and the quantity of slide bar can be two groups.
In above-mentioned gravity-type pressure-regulating and pressuring-limiting valve; Described pressure-regulating sleeve is provided with handle; On pressure-regulating sleeve, be provided with the moving mark that is positioned at the handle position; Described bonnet is provided with three quiet marks, and changes when moving mark described height degree that increases the weight of when a quiet mark moves to another quiet mark.Here three quiet marks respectively corresponding three kinds of gears, i.e. low pressure shelves, high pressure shelves and exhaust shelves.When moving mark is relative with one of them quiet mark, show that promptly this pressure limiting valve is in this gear.
Compared with prior art, the advantage of this gravity-type pressure-regulating and pressuring-limiting valve is: 1, simple in structure, easy to operate, and good operating stability.2, can indicate the duty of pressure limiting valve easily, security performance is high, can not cause user's maloperation.
Description of drawings
Fig. 1 is a main TV structure sketch map provided by the invention.
Fig. 2 is a bonnet cutaway view provided by the invention.
Fig. 3 is an explosive view provided by the invention.
Fig. 4 is a part-structure explosive view provided by the invention.
Fig. 5 is a pressure-regulating sleeve stereogram provided by the invention.
Fig. 6 is a pressure-regulating sleeve vertical view provided by the invention.
Fig. 7 is a valve seat stereogram provided by the invention.
Among the figure, blast pipe 1, valve seat 2, projection 21, arc chute 22, valve body 3, groove 31, locating slot 32, bonnet 4, top 41, steam vent 42, quiet mark 43, increase the weight of body 5, pressure-regulating sleeve 6, slide bar 61, retaining pin 62, handle 63, moving mark 64, pressure regulation post 7, pressure regulation step 8, lifting inclined-plane 80, down blocking surface 91, go up blocking surface 92.
The specific embodiment
Shown in Fig. 1 and 7, this gravity-type pressure-regulating and pressuring-limiting valve is arranged at blast pipe 1 place of pressure cooker lid, comprises the tubular valve seat 2 that is fixed on the pot cover and is positioned at blast pipe 1 periphery.Shown in Fig. 3 and 4, in valve seat 2, be provided with the valve body 3 that is placed in blast pipe 1 periphery, be fixed with bonnet 4 at the top of valve body 3.As shown in Figure 2, bonnet 4 has can be buckled in top 41 on the blast pipe 1, on bonnet 4, has steam vent 42.
Shown in Fig. 3-6, in valve seat 2, be provided with the pressure-regulating sleeve 6 that can circumferentially rotate, pressure-regulating sleeve 6 and increasing the weight of is provided with between the body 5 can drive the pressure adjusting structure that increases the weight of body 5 up-downs when pressure-regulating sleeve 6 rotates.More particularly, pressure adjusting structure has two groups and be symmetrical set.Every group of pressure adjusting structure comprises respectively and is fixed on the pressure regulation post 7 that increases the weight of body 5 bottoms and two pressure regulation steps 8 that are arranged on pressure-regulating sleeve 6 bottoms that pressure regulation post 7 can be on pressure regulation step 8.Has lifting inclined-plane 80 respectively at pressure regulation step 8 sidepieces.Increase the weight of body 5 and be placed in valve body 3 bottoms, have in valve body 3 lower ends and prevent to increase the weight of the following blocking surfaces 91 that body 5 axially breaks away from valve bodies 3 downwards, have on bonnet 4 or the valve body 3 when increasing the weight of body 5 and axially move up can be with valve body 3 jack-up on blocking surface 92.Through this structure, increase the weight of being limited between blocking surface 92 and the following blocking surface 91 of body 5.
In the present embodiment, pressure-regulating sleeve 6 is provided with handle 63, on pressure-regulating sleeve 6, is provided with the moving mark 64 that is positioned at handle 63 positions.Bonnet 4 is provided with three quiet marks 43, and highly changes when moving mark 64 described body 5 that increases the weight of when a quiet mark 43 moves to another quiet mark 43.More particularly, three quiet mark 43 respectively corresponding three kinds of gears, i.e. low pressure shelves, high pressure shelves and exhaust shelves.When the quiet mark 43 of moving mark 64 and one of them relatively the time, show that promptly this pressure limiting valve is in this gear.
During use, when the quiet mark of represent the high pressure gear on the moving mark on the pressure-regulating sleeve 6 64 and the bonnet 4 43 is relative, increases the weight of body 5 and be in the state that is suspended on valve body 3.At this moment, increase the weight of body 5 and contact with following blocking surface 91, pressure regulation post 7 does not contact with any pressure regulation step 8, has comprised the gravity that increases the weight of body 5 in the active force that this moment, top 41 pairs of blast pipes 1 applied.When needs are turned down pressure, rotate pressure-regulating sleeve 6, pressure regulation post 7 is contacted with lower pressure regulation step 8, at this moment, no longer valve body 3 is applied active force by the jack-up certain altitude thereby increase the weight of body 5.So just realized adjusting from the high pressure shelves to the low pressure shelves.When the needs exhaust, rotate pressure-regulating sleeve 6, pressure regulation post 7 is contacted with higher pressure regulation step 8, at this moment, increase the weight of body 5 by jack-up and the body of increasing the weight of 5 is arranged, thereby make top 41 disengaging blast pipes 1 valve body 3 jack-up.At this moment, promptly be in the exhaust shelves.
Owing to increase the weight of circumferentially location and axially can going up and down of body 5, and pressure-regulating sleeve 6 can circumferentially rotate, when pressure-regulating sleeve 6 circumferentially rotates, can drive like this and increase the weight of body 5 and go up and down through pressure adjusting structure, thus the adjusting of realization force value.Specifically, when pressure adjusting structure is in initial position, increases the weight of body 5 and hang on the valve body 3, comprised the gravity that increases the weight of body 5 in the active force that this moment, top 41 pairs of blast pipes 1 applied, so force value is maximum, promptly is in the high pressure shelves.When pressure-regulating sleeve 6 turns an angle, to increase the weight of body 5 and can break away from valve body 3, this moment, force value reduced, and promptly was in the low pressure shelves.When pressure-regulating sleeve 6 is rotated further certain angle, increase the weight of body 5 with valve body 3 jack-up at this moment, top 41 break away from blast pipes 1, are the exhaust shelves this moment.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used blast pipe 1, valve seat 2, projection 21, locating slot 32, arc chute 22, valve body 3, groove 31, bonnet 4, top 41, steam vent 42, quiet mark 43 morely, has increased the weight of body 5, pressure-regulating sleeve 6, slide bar 61, retaining pin 62, handle 63, moving mark 64, pressure regulation post 7, pressure regulation step 8, lifting inclined-plane 80, down blocking surface 91, go up terms such as blocking surface 92, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; It all is contrary with spirit of the present invention being construed to any additional restriction to them.
Claims (9)
1. gravity-type pressure-regulating and pressuring-limiting valve; The blast pipe (1) that is arranged at pressure cooker lid is located; Comprise the tubular valve seat (2) that is fixed on the pot cover and is positioned at blast pipe (1) periphery; In valve seat (2), be provided with and be placed in the peripheral valve body (3) of blast pipe (1), be fixed with bonnet (4) at the top of valve body (3), this bonnet (4) has top (41) that can be buckled on the blast pipe (1); On bonnet (4), have steam vent (42); It is characterized in that described valve body (3) is provided with and can be hung on increasing the weight of body (5) and increase the weight of body (5) this increases the weight of that body (5) can break away from valve body (3) or with valve body (3) jack-up when axially rising when described on the valve body (3), the described circumferentially location of body (5) and valve seat (2) of increasing the weight of; In valve seat (2), be provided with the pressure-regulating sleeve (6) that can circumferentially rotate, described pressure-regulating sleeve (6) and increase the weight of to be provided with between the body (5) when pressure-regulating sleeve (6) rotates, can drive and increase the weight of the pressure adjusting structure that body (5) goes up and down; The described body (5) that increases the weight of is placed in valve body (3) bottom; Have the following blocking surface (91) that prevents to increase the weight of the axial downward disengaging valve body of body (5) (3) in valve body (3) lower end, on bonnet (4) or valve body (3), having can be with the last blocking surface (92) of valve body (3) jack-up when axially moving up when increasing the weight of body (5).
2. gravity-type pressure-regulating and pressuring-limiting valve according to claim 1; It is characterized in that; Described pressure adjusting structure comprises two the pressure regulation steps (8) that are fixed on the pressure regulation post (7) that increases the weight of body (5) bottom and are arranged on pressure-regulating sleeve (6) bottom, and described pressure regulation post (7) can be on pressure regulation step (8).
3. gravity-type pressure-regulating and pressuring-limiting valve according to claim 2 is characterized in that, described pressure regulation step (8) sidepiece has lifting inclined-plane (80) respectively.
4. according to claim 2 or 3 described gravity-type pressure-regulating and pressuring-limiting valves, it is characterized in that, be provided with the first circumferential location structure between described valve body (3) and the valve seat (2), describedly increase the weight of to be provided with between body (5) and the valve body (3) the second circumferential location structure.
5. gravity-type pressure-regulating and pressuring-limiting valve according to claim 4; It is characterized in that; The described first circumferential location structure comprises the projection (21) that is fixed on valve seat (2) bottom and opens in valve body (3) sidepiece and axially extended groove (31) that described projection (21) is plugged in the groove (31) slidably.
6. gravity-type pressure-regulating and pressuring-limiting valve according to claim 4; It is characterized in that; The described second circumferential location structure comprises out that in valve body (3) sidepiece and axially extended locating slot (32) above-mentioned pressure regulation post (7) is partially submerged in the locating slot (32) and can slides along locating slot (32).
7. gravity-type pressure-regulating and pressuring-limiting valve according to claim 4 is characterized in that, is provided with between described valve seat (2) and the pressure-regulating sleeve (6) to make pressure-regulating sleeve (6) and valve seat (2) axial location and circumferential syndeton of rotating.
8. gravity-type pressure-regulating and pressuring-limiting valve according to claim 7; It is characterized in that; Described syndeton comprises out in the arc chute (22) of valve seat (2) bottom and the slide bar (61) that is fixed on bottom the pressure-regulating sleeve (6); Described slide bar (61) is located in the arc chute (22), and has the retaining pin (62) that prevents slide bar (61) disengaging arc chute (22) in the lower end of slide bar (61).
9. according to claim 1 or 2 or 3 described gravity-type pressure-regulating and pressuring-limiting valves; It is characterized in that; Described pressure-regulating sleeve (6) is provided with handle (63); On pressure-regulating sleeve (6), be provided with the moving mark (64) that is positioned at handle (63) position, described bonnet (4) is provided with three quiet marks (43), and highly changes when moving mark (64) described body (5) that increases the weight of when a quiet mark (43) moves to another quiet mark (43).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101134378A CN101797118B (en) | 2010-01-26 | 2010-01-26 | Gravity-type pressure-regulating and pressuring-limiting valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101134378A CN101797118B (en) | 2010-01-26 | 2010-01-26 | Gravity-type pressure-regulating and pressuring-limiting valve |
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| CN101797118A CN101797118A (en) | 2010-08-11 |
| CN101797118B true CN101797118B (en) | 2012-07-04 |
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| CN2010101134378A Active CN101797118B (en) | 2010-01-26 | 2010-01-26 | Gravity-type pressure-regulating and pressuring-limiting valve |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103445668B (en) * | 2013-08-22 | 2016-04-13 | 中山市雅乐思电器实业有限公司 | A kind of pressure limiting valve and electric pressure cooking saucepan |
| CN105231814B (en) * | 2015-11-03 | 2018-06-26 | 珠海双喜电器股份有限公司 | A kind of multi-gear adjustable presses pressure limiting valve |
| CN107136911B (en) * | 2016-03-01 | 2023-03-14 | 佛山市顺德区美的电热电器制造有限公司 | Pressure adjusting structure and pressure cooker with same |
| CN107928395A (en) * | 2017-12-07 | 2018-04-20 | 浙江凯达工贸有限公司 | Pressure cooker with pressure limiting valve control structure |
| CN110200493B (en) * | 2018-02-28 | 2022-05-06 | 浙江绍兴苏泊尔生活电器有限公司 | Pressure cooker and cooking utensil |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2115107A (en) * | 1981-12-14 | 1983-09-01 | Ti Tower Housewares Limited | Pressure control valve for pressure cookers |
| EP0420324A2 (en) * | 1989-09-29 | 1991-04-03 | AETERNUM S.r.l. | Operating valve for pressure cookers |
| CN2552436Y (en) * | 2002-05-24 | 2003-05-28 | 胡国定 | Adjustable pressure-limiting valve for pressure-cooker |
| CN2560284Y (en) * | 2002-03-08 | 2003-07-16 | 周衍增 | Safety valve of pneumatic switch for electric pressure cooker |
| CN2807996Y (en) * | 2005-06-06 | 2006-08-23 | 浙江苏泊尔炊具股份有限公司 | Pressure-regulating and limiting valve for pressure cooker |
| CN201617658U (en) * | 2010-01-26 | 2010-11-03 | 浙江苏泊尔股份有限公司 | Gravity-type pressure regulating and limiting valve |
-
2010
- 2010-01-26 CN CN2010101134378A patent/CN101797118B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2115107A (en) * | 1981-12-14 | 1983-09-01 | Ti Tower Housewares Limited | Pressure control valve for pressure cookers |
| EP0420324A2 (en) * | 1989-09-29 | 1991-04-03 | AETERNUM S.r.l. | Operating valve for pressure cookers |
| CN2560284Y (en) * | 2002-03-08 | 2003-07-16 | 周衍增 | Safety valve of pneumatic switch for electric pressure cooker |
| CN2552436Y (en) * | 2002-05-24 | 2003-05-28 | 胡国定 | Adjustable pressure-limiting valve for pressure-cooker |
| CN2807996Y (en) * | 2005-06-06 | 2006-08-23 | 浙江苏泊尔炊具股份有限公司 | Pressure-regulating and limiting valve for pressure cooker |
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| CN101797118A (en) | 2010-08-11 |
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