CN105476473A - Pressure release valve used for pressure cooker and pressure cooker - Google Patents
Pressure release valve used for pressure cooker and pressure cooker Download PDFInfo
- Publication number
- CN105476473A CN105476473A CN201610023374.4A CN201610023374A CN105476473A CN 105476473 A CN105476473 A CN 105476473A CN 201610023374 A CN201610023374 A CN 201610023374A CN 105476473 A CN105476473 A CN 105476473A
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- valve
- pressure
- hole
- pressure cooker
- sealing
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/09—Safety devices
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
The invention discloses a pressure release valve used for a pressure cooker and the pressure cooker. The pressure release valve comprises a valve seat and a valve element. The valve element comprises a sealing part and a valve rod connected with the sealing part. A step passageway penetrating through the two opposite ends of the valve seat is arranged on the valve seat. A first step and a second step are arranged in the step passageway. Exhaust holes communicated with the step passageway are formed in the portion, between the first step and the second step, of the valve seat. The pressure release valve further comprises an elastic reset piece and an elastic sealing body. A valve rod is sleeved with the elastic reset piece. The two opposite ends of the elastic reset piece can elastically abut against the valve rod and the first step respectively. The elastic sealing body is arranged on the second step and arranged on the valve rod in a sleeving mode. A through hole for the valve rod to penetrate through is formed in the elastic sealing body. The sealing part abuts against the bottom face of the elastic sealing body and seals the through hole. The sealing part is pushed by pressure to penetrate through the through hole and move to the space between the first step and the second step. Rapid and stable exhausting can be achieved; meanwhile, the two-stage pressure release function is achieved, and it is ensured that use of the pressure cooker is safer and more reliable.
Description
Technical field
The present invention relates to pressure cooker technical field, specifically refer to a kind of pressure reducing valve of pressure cooker and pressure cooker.
Background technology
On the pot cover of pressure cooker, except pressure limiting valve, be also provided with some safety devices, after preventing pressure limiting valve to be plugged, cause explosion accident to occur.These safety devices are generally relief valve, and after pressure limiting valve is plugged, the high pressure in pressure cooker can make relief valve be in pressure release state, and gas is discharged from relief valve.The relief valve that current pressure cooker adopts is skylight pressure relief mechanism, when the pressure in pressure cooker exceedes certain value, skylight pressure relief mechanism can discharge gas in pot fast, in pressure leak process, its sealing ring is extruded from skylight, and this skylight pressure relief mechanism exists the shortcomings such as vent pressure instability, venting duration be unreliable.
For solving the problem, those skilled in the art devise a kind of pressure relief valve for pressure cooker, it comprises valve body and valve gap, valve body and valve gap are respectively equipped with air admission hole and steam vent, seal is fixed with between valve gap and valve body, seal offers through hole, and seal is provided with the spool can closing or open through hole.When the pressure in pressure cooker exceedes certain value, spool lower end is through through hole to open through hole, and in pot, gas is discharged from through hole.But after long-time use, spool lower end can stick with seal, even if pot inner pressure exceedes certain value, through hole also cannot be opened in spool lower end, and relief valve can be caused like this to lose efficacy, and there is larger potential safety hazard.
Summary of the invention
For overcoming the defect that prior art exists, the invention provides a kind of pressure reducing valve of pressure cooker, it can realize fast and stable exhaust, and has two-stage decompression function.The present invention also provides a kind of pressure cooker comprising above-mentioned pressure reducing valve of pressure cooker.
For achieving the above object, the present invention is by the following technical solutions: pressure reducing valve of pressure cooker of the present invention, comprise valve seat, spool, the valve rod that described spool comprises sealing and is connected with described sealing, its special character is: described valve seat is provided with the step channel running through its opposite end, be interval with first step and second step in described step channel, described valve seat is provided with the steam vent be communicated with described step channel at described first step and the position between second step; Described spool is installed on described step channel, and can slide along described step channel; Described pressure reducing valve of pressure cooker also comprises elastic reset part and elastic sealed body, and described elastic reset part is set on described valve rod, and the opposite end of described elastic reset part elastic top can be butted on the top of described valve rod and described first step respectively; Described elastic sealed body is installed on described second step, and is sheathed on described valve rod, and described elastic sealed body is provided with the through hole passed for described valve rod, and described sealing is resisted against the bottom surface of described elastic sealed body and seals described through hole; Described sealing passes described through hole under the promotion of pressure, and moves between described first step and second step.
Preferably, the outer wall of described elastic sealed body is provided with the annular groove engaged with described second step, departs from the engaging with described second step after described annular groove crimp.
Further, the radical length of cell wall that described annular groove is positioned at below described second step is less than the radical length that described annular groove is positioned at the cell wall above described second step.
Again further, described sealing is top incline towards the upper surface of described through hole, and described top incline extrudes elastic packing body deformability under the promotion of pressure until described sealing is through described through hole.
Again further, the inwall of described through hole is provided with annular boss, and described sealing and described annular boss are supported mutually, and the inwall of the outer peripheral face of described valve rod and described annular boss leaves gap.
Again further, described valve rod is also provided with step, described step when described valve core movement can backstop in described first step.
Again further, described valve rod is provided with valve handle away from the top of described sealing, and the opposite end of described elastic reset part is resisted against described valve handle and described first step respectively.
Again further, described step channel is divided into middle valve pocket and lower valve chamber by described first step and described second step, described middle valve pocket is communicated with by described through hole with lower valve chamber, and described steam vent is communicated with described middle valve pocket, and described valve seat is also provided with the air admission hole be communicated with described lower valve chamber.
Again further, the inner wall depression of described middle valve pocket forms the 3rd step surface, and described 3rd step surface is formed with away from the top of described lower valve chamber the uuper valve chamber be communicated with described middle valve pocket with the external world, and described valve handle is placed in described uuper valve chamber slidably.
Again further, the lower surface of described sealing described through hole is dorsad bottom incline.
The present invention also provides a kind of pressure cooker, and described pressure cooker comprises above-mentioned pressure reducing valve of pressure cooker.
Beneficial effect of the present invention is:
One, Elastic seal of the present invention is provided with the annular groove engaged with second step face, and the radical length of cell wall that annular groove is positioned at below second step is less than the radical length that annular groove is positioned at the cell wall above second step.When the sealing of spool departs from elastic sealed body failure, the gases at high pressure extrusion ring connected in star distortion in pot, makes elastic sealed body depart from the engaging with second step face, is discharged by pot inner high voltage gas.Therefore, this relief valve possesses two-stage decompression function, guarantees that the use of pressure cooker is more safe and reliable.
Its two, in the present invention, the inwall of through hole is provided with annular boss, makes sealing under the promotion of pressure, more easily pass through hole and opens to make through hole.
Its three, in the present invention, the outer peripheral face of valve rod and the inwall of annular boss leave gap, can reduce the frictional force between valve rod and elastic sealed body, thus control the vent pressure of relief valve.When the pressure of pressure cooker exceedes setting value, sealing departs from elastic sealed body to realize fast and stable exhaust.
Its four, in the present invention, sealing is set to top incline towards the upper surface of through hole, is convenient to sealing and opens to make through hole through through hole under the promotion of pressure, also avoid it to be damaged by elastic sealed body.The lower surface of sealing described through hole is dorsad set to bottom incline, is convenient to pressure release and terminates rear sealing and seal to make through hole through the through hole of elastic sealed body.
Its five, in the present invention, valve rod is provided with step surface, can prevent valve core movement depart from valve seat.
Accompanying drawing explanation
Fig. 1 is the semi-section schematic diagram under pressure reducing valve of pressure cooker sealing state of the present invention;
Fig. 2 is the state diagram that in Fig. 1, sealing passes through hole under the promotion of pressure;
Fig. 3 departs from the state diagram engaged with second step face after the crimp of Fig. 1 Elastic seal.
In figure: valve seat 1 (wherein: steam vent 11, air admission hole 12, valve pocket 13, valve gap 14); Spool 2 (wherein: sealing 21, top incline 211, bottom incline 212, valve rod 22, step 221); Step channel 3 (wherein: first step 31, second step 32, uuper valve chamber 33, the 3rd step surface 331, middle valve pocket 34, lower valve chamber 35); Elastic reset part 4; Elastic sealed body 5 (wherein: through hole 51, annular groove 52, annular boss 53); Valve handle 6; Pot cover 7; Nut 8; Sealing gasket 9.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but this embodiment should not be construed limitation of the present invention.
Please refer to Fig. 1 and Fig. 2, a kind of pressure reducing valve of pressure cooker provided by the invention, comprise valve seat 1, spool 2.Wherein, valve seat 1 comprises the valve pocket 13 and valve gap 14 that are threaded, and valve gap 14 is provided with the steam vent 11 of some radial directions, valve pocket 13 is provided with air admission hole 12.Form the step channel 3 running through its opposite end in valve pocket 13 and valve gap 14, valve gap 14 is positioned at step channel 3 and is provided with first step 31, and valve pocket 13 is positioned at step channel 3 and is provided with second step 32.Step channel 3 is divided into middle valve pocket 34 and lower valve chamber 35 by first step 31 and second step 32, and steam vent 11 is communicated with middle valve pocket 34, and air admission hole 12 is communicated with lower valve chamber 35.The valve rod 22 that spool 2 comprises sealing 21 and is connected with sealing 21.Spool 2 is installed on step channel 3, and can slide along step channel 3.
Continue referring to Fig. 1, this pressure reducing valve of pressure cooker also comprises elastic reset part 4 and elastic sealed body 5, and wherein elastic reset part 4 is spring.Elastic reset part 4 is set on valve rod 22, and the opposite end of elastic reset part 4 elastic top can be butted on top and the first step 31 of valve rod 22 respectively.Elastic sealed body 5 is in cone-shaped or cylindric, and elastic sealed body 5 is installed on second step 32 and is sheathed on valve rod 22, and elastic sealed body 5 is provided with the through hole 51 passed for valve rod 22, and middle valve pocket 34 is communicated with lower valve chamber 35 by through hole 51.
Please refer to Fig. 1, to be loaded on after the valve pocket 13 of relief valve of the present invention puts sealing gasket 9 on pot cover 7 and to be connected and fixed by nut 8; Under sealing state, sealing 21 is resisted against the bottom surface of elastic sealed body 5 and seals through hole 51.Please refer to Fig. 2, when pressure pot inner pressure exceedes setting value, sealing 21 passes through hole 51 under the promotion of gases at high pressure, and move between first step 31 and second step 32, open through hole 51, now middle valve pocket 34 is communicated with by through hole 51 with lower valve chamber 35, and gases at high pressure are finally discharged from steam vent 11 from air admission hole 12 through lower valve chamber 35 and middle valve pocket 34.For prevent spool 2 move to depart from valve seat 1, valve rod 22 is also provided with step 221, step 221 when spool 2 moves can backstop in first step 31.
Under the promotion of gases at high pressure, pass through hole 51 for ease of sealing 21, be further improved sealing 21 and through hole 51, please refer to Fig. 1-3, sealing 21 is top incline 211 towards the upper surface of through hole 51; The inwall of through hole 51 is provided with annular boss 53.Please refer to Fig. 1, top incline 211 and the annular boss 53 of sealing 21 are supported mutually, and the inwall of the outer peripheral face of valve rod 22 and annular boss 53 leaves gap.Please refer to Fig. 2, top incline 211 extrudes elastic sealed body 5 and is out of shape until sealing 21 is through through hole 51 under the promotion of pressure.Be beneficial to spool 2 like this and more easily depart from elastic sealed body 5 under the High Pressure of pressure cooker, also avoid sealing 21 pairs of elastic sealed bodies 5 to cause damage.
Pressure cooker is through being usually used in stewing, steaming dish etc., can make like this sealing 21 easily and elastic sealed body 5 stick together, even if when pot inner pressure exceedes setting value, sealing 21 also cannot depart from elastic sealed body 5 and be discharged by pot inner high voltage gas to open through hole 51, relief valve can be caused like this to lose efficacy, there is larger potential safety hazard.For overcoming above-mentioned defect, continue referring to Fig. 1, the outer wall of elastic sealed body 5 is provided with annular groove 52, and annular groove 52 engages with second step 32.Like this, please refer to Fig. 3, the super-pressure in pressure cooker can extrude elastic sealed body 5, departs from the engaging with second step 32 after annular groove 52 is extruded and deforms, and elastic sealed body 5 can move in middle valve pocket 34 together along with valve rod 2.Now, lower valve chamber 35 is communicated with middle valve pocket 34, and gases at high pressure are finally discharged from steam vent 11 from air admission hole 12 through lower valve chamber 35 and middle valve pocket 34, and such relief valve possesses two-stage decompression function.Above-mentioned annular groove 52 is further improved, please refer to Fig. 1-2, the radical length of the cell wall that annular groove 52 is positioned at below second step 32 is less than the radical length that annular groove 52 is positioned at the cell wall above second step 32, such second step 32 leaves gap in the horizontal direction with annular groove 52, makes annular groove 52 more easily depart from the engaging with second step 32.
When pressure release is complete, realize automatically reseting to make sealing 21 seal through hole 51 for ease of pressing valve rod 22, please refer to Fig. 1, the lower surface of sealing 21 through hole is dorsad bottom incline 212, makes sealing 21 be resisted against the bottom surface of elastic sealed body 5 to seal through hole 51 through through hole 51 so that bottom incline 212 extrudes elastic sealed body 5.In order to operating handle, continue referring to Fig. 1, valve rod 22 has valve handle 6 away from the top riveted joint of sealing 21, so that by pressing valve handle 6, makes sealing 21 be reset to sealing through hole 51.Like this, the opposite end of above-mentioned elastic reset part 4 is resisted against valve handle 6 and First terrace 31 respectively.It should be noted that, after valve rod 22 can automatically reset and be only limitted to a pressure release, be namely elastic sealed body 5 when not moving to middle valve pocket 34 with valve rod 22, valve rod 22 can automatically reset; Otherwise can not automatically reset.
Please refer to Fig. 1, the inner wall depression of middle valve pocket 34 forms the 3rd step surface the 331, three step surface 331 and is formed with away from the top of lower valve chamber 35 uuper valve chamber 33 be communicated with extraneous and middle valve pocket 34.Pressing valve handle 6, valve handle 6 slide uuper valve chamber 33 in also backstop in the 3rd step surface 331.It should be noted that, in other embodiments, the top of spool 2 also can arrange valve handle 6, but the backstop boss of periphery projection backstop elastic reset part 4 on the top of spool 2.
The present invention also provides a kind of pressure cooker, and this pressure cooker comprises the pressure reducing valve of pressure cooker of above-described embodiment.Wherein, after the valve pocket 13 of pressure reducing valve of pressure cooker puts sealing gasket 9, the pot cover 7 being loaded on pressure cooker is connected and fixed by nut 8.
The content be not described in detail in this description, belongs to the known prior art of those skilled in the art.
Claims (11)
1. a pressure reducing valve of pressure cooker, comprise valve seat (1), spool (2), the valve rod (22) that described spool (2) comprises sealing (21) and is connected with described sealing (21), is characterized in that:
Described valve seat (1) is provided with the step channel (3) running through its opposite end, be interval with first step (31) and second step (32) in described step channel (3), the position of described valve seat (1) between described first step (31) with second step (32) is provided with the steam vent (11) be communicated with described step channel (3);
Described spool (2) is installed on described step channel (3), and can slide along described step channel (3);
Described pressure reducing valve of pressure cooker also comprises elastic reset part (4) and elastic sealed body (5), described elastic reset part (4) is set on described valve rod (22), and the opposite end of described elastic reset part (4) elastic top can be butted on top and the described first step (31) of described valve rod (22) respectively;
Described elastic sealed body (5) is installed on described second step (32), and be sheathed on described valve rod (22), described elastic sealed body (5) is provided with the through hole (51) passed for described valve rod (22), and described sealing (21) is resisted against the bottom surface of described elastic sealed body (5) and seals described through hole (51);
Described sealing (21) passes described through hole (51) under the promotion of pressure, and moves between described first step (31) and second step (32).
2. pressure reducing valve of pressure cooker according to claim 1, it is characterized in that: the outer wall of described elastic sealed body (5) is provided with the annular groove (52) engaged with described second step (32), after described annular groove (52) crimp, depart from the engaging with described second step (32).
3. pressure reducing valve of pressure cooker according to claim 2, is characterized in that: the radical length that described annular groove (52) is positioned at the cell wall of described second step (32) below is less than the radical length that described annular groove (52) is positioned at the cell wall of described second step (32) top.
4. pressure reducing valve of pressure cooker according to claim 1, it is characterized in that: described sealing (21) is top incline (211) towards the upper surface of described through hole (51), described top incline (211) extrudes elastic sealed body (5) distortion until described sealing (21) is through described through hole (51) under the promotion of pressure.
5. the pressure reducing valve of pressure cooker according to claim 1 or 4, it is characterized in that: the inwall of described through hole (51) is provided with annular boss (53), described sealing (21) and described annular boss (53) are supported mutually, and the inwall of the outer peripheral face of described valve rod (22) and described annular boss (53) leaves gap.
6. pressure reducing valve of pressure cooker according to claim 1, it is characterized in that: described valve rod (22) is also provided with step (221), described step (221) when described spool (2) moves can backstop in described first step (31).
7. pressure reducing valve of pressure cooker according to claim 1, it is characterized in that: described valve rod (22) is provided with valve handle (6) away from the top of described sealing (21), the opposite end of described elastic reset part (4) is resisted against described valve handle (6) and described first step (31) respectively.
8. pressure reducing valve of pressure cooker according to claim 7, it is characterized in that: described step channel (3) is divided into middle valve pocket (34) and lower valve chamber (35) by described first step (31) and described second step (32), described middle valve pocket (34) is communicated with by described through hole (51) with lower valve chamber (35), described steam vent (11) is communicated with described middle valve pocket (34), and described valve seat (1) is also provided with the air admission hole (12) be communicated with described lower valve chamber (35).
9. pressure reducing valve of pressure cooker according to claim 8, it is characterized in that: the inner wall depression of described middle valve pocket (34) forms the 3rd step surface (331), described 3rd step surface (331) is formed with away from the top of described lower valve chamber (35) uuper valve chamber (33) be communicated with described middle valve pocket (34) with the external world, and described valve handle (6) is placed in described uuper valve chamber (33) slidably.
10. pressure reducing valve of pressure cooker according to claim 1, is characterized in that: the lower surface of described sealing (21) described through hole (51) is dorsad bottom incline (212).
11. 1 kinds of pressure cookers, is characterized in that: described pressure cooker comprises the pressure reducing valve of pressure cooker according to any one of the claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610023374.4A CN105476473B (en) | 2016-01-13 | 2016-01-13 | Pressure reducing valve of pressure cooker and pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610023374.4A CN105476473B (en) | 2016-01-13 | 2016-01-13 | Pressure reducing valve of pressure cooker and pressure cooker |
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| Publication Number | Publication Date |
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| CN105476473A true CN105476473A (en) | 2016-04-13 |
| CN105476473B CN105476473B (en) | 2017-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610023374.4A Active CN105476473B (en) | 2016-01-13 | 2016-01-13 | Pressure reducing valve of pressure cooker and pressure cooker |
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| CN (1) | CN105476473B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111018A (en) * | 2016-08-12 | 2016-11-16 | 胡海潮 | The pressure release reactor prepared for Entecavir |
| CN106179157A (en) * | 2016-08-12 | 2016-12-07 | 胡海潮 | Quiet pressure release reactor |
| CN106931201A (en) * | 2017-03-08 | 2017-07-07 | 武汉苏泊尔炊具有限公司 | Safety valve and the cooking utensils with it |
| CN110464212A (en) * | 2019-09-25 | 2019-11-19 | 珠海格力电器股份有限公司 | A kind of pressure limiting valve gear and pressure cooker |
| CN113545664A (en) * | 2021-08-03 | 2021-10-26 | 珠海格力电器股份有限公司 | Pressure container, control method thereof and cooking utensil |
| CN117948450A (en) * | 2024-03-26 | 2024-04-30 | 山东鑫亚格林鲍尔燃油系统有限公司 | Pressure relief valve |
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| JP2007175324A (en) * | 2005-12-28 | 2007-07-12 | Zojirushi Corp | Method of manufacturing pressure cooker, and pressure cooker |
| CN203723893U (en) * | 2014-02-11 | 2014-07-23 | 九阳股份有限公司 | Non-self-resetting pressure release valve and pressure cooking utensil with same |
| CN203987556U (en) * | 2014-05-28 | 2014-12-10 | 杭州九阳欧南多小家电有限公司 | A kind of safe relief valve and electric pressure cooking saucepan of using |
| CN205338626U (en) * | 2016-01-13 | 2016-06-29 | 武汉苏泊尔炊具有限公司 | Relief valve and pressure cooker for pressure cooker |
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| JP2000262402A (en) * | 1999-03-19 | 2000-09-26 | Zojirushi Corp | Pressure cooker |
| JP2007175324A (en) * | 2005-12-28 | 2007-07-12 | Zojirushi Corp | Method of manufacturing pressure cooker, and pressure cooker |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111018A (en) * | 2016-08-12 | 2016-11-16 | 胡海潮 | The pressure release reactor prepared for Entecavir |
| 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 |
| CN106111018B (en) * | 2016-08-12 | 2018-11-16 | 胡海潮 | Pressure release reaction kettle for Entecavir preparation |
| CN106931201A (en) * | 2017-03-08 | 2017-07-07 | 武汉苏泊尔炊具有限公司 | Safety valve and the cooking utensils with it |
| CN110464212A (en) * | 2019-09-25 | 2019-11-19 | 珠海格力电器股份有限公司 | A kind of pressure limiting valve gear and pressure cooker |
| CN113545664A (en) * | 2021-08-03 | 2021-10-26 | 珠海格力电器股份有限公司 | Pressure container, control method thereof and cooking utensil |
| CN113545664B (en) * | 2021-08-03 | 2022-06-03 | 珠海格力电器股份有限公司 | Pressure container, control method thereof and cooking utensil |
| CN117948450A (en) * | 2024-03-26 | 2024-04-30 | 山东鑫亚格林鲍尔燃油系统有限公司 | Pressure relief valve |
| CN117948450B (en) * | 2024-03-26 | 2024-07-19 | 山东鑫亚格林鲍尔燃油系统有限公司 | Pressure relief valve |
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| CN105476473B (en) | 2017-10-20 |
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