CN2258034Y

CN2258034Y - Safety pressure-cooker

Info

Publication number: CN2258034Y
Application number: CN 96228504
Authority: CN
Inventors: 沈玉海; 张秀福
Original assignee: JINAN ALUMINIUM PRODUCTS FACTORY
Current assignee: JINAN ALUMINIUM PRODUCTS FACTORY
Priority date: 1996-08-06
Filing date: 1996-08-06
Publication date: 1997-07-23
Anticipated expiration: 2006-08-06

Abstract

The utility model relates to an inexplosive safety pressure-cooker, which belongs to the technical field of pressure-cookers. The utility model is composed of a cooker lid, a cooker body and a sealing ring. The utility model is characterized in that the of a contact point of the cooker lid and the sealing ring is provided with an ejecting chamber which is raised outward. The inexplosive safety pressure-cooker having a structure of the utility model has good integrity, strong beautiful sense, highsafety performance, convenient manufacture and long service life. The utility model especially has the advantages that the utility model can not bring about explosion when pressure in the utility model is high, etc.

Description

A kind of not quick-fried safe pressure cooker

The utility model relates to pressure cooker, particularly a kind of pressure cooker of avoiding causing because of pot inner pressure is excessive blast that has safety device.

The utility model patent application a few days ago, open on the market, as to sell and use pressure cooker, usually adopting pressure cooker cover that pressure limiting valve and safety valve are set prevents that pot inner pressure is excessive and causes blast, but stop up when Stewed Dish easily causes pressure limiting valve and safety valve valve port in the pressure cooker pot of this structure, make it ineffective and explode, can't fundamentally solve explosion-proof problem; Both having made employing in the pot cover outer rim rectangle is set ejects mouth and solves the blast protection problem, but bring simultaneously not attractive in appearance, associative perception is poor, rectangle ejects mouthful punching stress and concentrates, cause bad mechanical strength, pot cover intensity to reduce, and easily cause sealing ring to rupture in the use, outside pot inner vapor transverse jet takes the dish out of the pot, equally easily cause defectives such as personal injury.

Goal of the invention of the present utility model is to overcome above-mentioned defective, and a kind of security performance height is provided, even pot inner pressure is excessive, and the not quick-fried safe pressure cooker that still can not blast.

Foregoing invention purpose of the present utility model realizes by following technical proposals:

A kind of not quick-fried safe pressure cooker comprises: pot cover, several parts of pot body, sealing ring are formed, and the outer rim that it is characterized in that pot cover and sealing ring contact position is provided with the chamber that ejects to outer lug.

The outer rim of pot cover and sealing ring contact position is provided with the chamber that ejects to outer lug, purpose is when the pressure cooker pot inner pressure reaches maximum sealing load value, sealing ring can crooked mobile heading into eject the chamber under the overvoltage vapor action, make to form between the sealing ring lip limit that covers pot body eversion edge and pot body eversion edge and let out the vapour passage, steam discharges thus, the effect of pressure-relief explosion-proof when playing pot interior overvoltage.

The described purpose that is provided with that ejects the chamber is to provide sealing ring crooked space of moving under the overvoltage vapor action, limits sealing ring simultaneously and ejects in a large number and cause the accident.The sealing ring that wedge angle causes that produces in the manufacture process because of moving fracture, eject the outer intermarginal best smooth connection of side, chamber and pot cover.

In order to reduce pressure release pressure, control the speed of revealing steam easily and effectively, pot body eversion edge can be provided with recessed inwards pressure relief opening ejecting opposite position place, chamber with pot cover, the purpose that is provided with of pressure relief opening is to provide overvoltage steam leakage mouth, the position of pressure relief opening can be arranged on pot edge of body eversion edge, its shape can adopt various ways, as: trapezoidal, rectangle or arc etc.; Also can be arranged on the eversion edge, as manhole, rectangular through holes, arcuation through hole etc.; Can also take separately that the outward flange of pot body eversion edge is further recessedly inwards with respect to usual pressure pot size in whole or in part, undertake the effect of pressure relief opening.For minimizing is therefore to the influence of pot body intensity to greatest extent, the pressure relief opening position is preferably disposed between the protruding tooth of pot body eversion edge.

The position that ejects real limit in position, chamber, space size and the pressure relief opening be provided with can adjust according to the size of the setting pressure of the intensity of pressure cooker material, pressure cooker and maximum sealing load value, pressure cooker etc. definite, to guarantee making sealing ring both can in pot, have good sealing effectiveness in the normal setting pressure scope, finish the normal function of use of pressure cooker, the bending that when pot inner pressure reaches maximum sealing load value, guarantees sealing ring simultaneously move can with its generation pressure release passage, the purpose that reaches pressure-relief explosion-proof is the designing and calculating principle.Usually real back gauge pot mouth planar central point distance range preferably is controlled in the pressure relief opening: pot body radius adds wall thickness to pot body radius and adds between the protruding tooth height of eversion edge.

For the overvoltage steam that prevents to leak out directly blows downwards, and cause electric heat source short circuit or other burning things which may cause a fire disaster from putting out, the position of pressure relief opening can be set in place between the protruding tooth of handle top pot body eversion edge, logical hollow structure in handle preferably is provided with and is, the hollow inner side plane is outward-dipping inclined-plane, make the steam that leaks out along this towards outside down discharge, avoid therefore having an accident.

In order to improve sealing ring seal degree and elasticity, sealing ring preferably adopts silicone rubber O-ring.

Working method of the present utility model is as follows: when using the not quick-fried safe pressure cooker of the basis have safety valve and pressure limiting valve, when generally pot inner pressure was excessive, pressure limiting valve or safety valve played the pressure release effect; When the safety valve of pressure cooker and pressure limiting valve because of stopping up or after other influence lost efficacy, sealing ring under the effect of overvoltage steam crooked move to form with pressure relief opening lets out the vapour passage, the steam discharge step-down reaches explosion-proof purpose.Use the not quick-fried safe pressure cooker of basis that does not have safety valve and pressure limiting valve right, pot inner pressure is in normal setting range, and the sealing ring deflection is little, does not influence its sealing property, keeps normally using; When pot inner pressure surpassed setting pressure, sealing ring is headed into ejected the chamber, formed with pressure relief opening and let out the vapour passage, and the steam discharge step-down reaches safe handling and explosion-proof purpose of design.

The pressure cooker of the utility model structure has good integrity, and its aesthetic appearance is strong, and the security performance height is easy to make, long service life, advantage such as also can not blast when particularly pot inner pressure is excessive.

Below in conjunction with embodiment the utility model is described in further detail:

Fig. 1 is the utility model structural representation;

Fig. 2 is that the utility model pot cover ejects the cell structure schematic diagram;

Fig. 8～Fig. 8 is the utility model pot body eversion edge structural representation.

Embodiment 1: referring to Fig. 1,2,3

A kind of not quick-fried safe pressure cooker, comprise: the pot cover 3 that has pressure limiting valve and safety valve, pot body 8, silicone rubber O-ring more than 4 parts, pot cover 3 and pot body 8 are provided with the handle with cover closing and opening safety device of relative engagement respectively, logical hollow structure in pot body 8 also is provided with and is, the hollow inner side plane is the handle 7 on outward-dipping inclined-plane 6, the recessed inwards trapezoidal pressure relief opening 12 of these handle 7 top pot bodies 8 eversion edges, 10 settings of 1 liang of protruding tooth, the interior real limit 11 of trapezoidal pressure relief opening 12 adds 1/3 protruding tooth 10 height apart from pot mouthful planar central point distance for the pot port radius, the outer rim setting of pot cover 3 and sealing ring 4 contact positions and pressure relief opening 12 positions corresponding to outer lug eject chamber 5, eject chamber 5 sides 9 and pot cover 3 outer rim smooth connections.

Embodiment 2: referring to Fig. 1,2,3,4

A kind of not quick-fried safe pressure cooker, comprise: the pot cover 3 that has pressure limiting valve, pot body 8, silicone rubber O-ring more than 4 parts, pot cover 3 and pot body 8 are provided with the handle with cover closing and opening safety device of relative engagement respectively, logical hollow structure in pot body 8 also is provided with and is, the hollow inner side plane is the handle 7 on outward-dipping inclined-plane 6, the pressure relief opening 13 of 10 settings of handle 1 liang of protruding tooth of 7 top pot bodies, 8 eversion edges adopts directly the further recessed inwards making of the recessed tooth 14 of 10 of protruding teeth, recessed tooth 14 outer edges are that the interior real limit 11 of pressure relief opening 13 adds 2 wall thickness apart from pot mouthful planar central points distance pot port radius, and the outer rim setting of pot cover 3 and sealing ring 4 contact positions and pressure relief opening 13 positions are corresponding to eject chamber 6 to outer lug.

Embodiment 8: referring to Fig. 1,2,3,5

A kind of not quick-fried safe pressure cooker, comprise: pot cover 3, pot body 8, silicone rubber O-ring more than 4 parts, logical hollow structure in pot body 8 is provided with and is, the hollow inner side plane is the handle 7 on outward-dipping inclined-plane 6, the recessed inwards arc pressure relief opening 15 of handle 7 top pot bodies 8 eversion edges, 10 settings of 1 liang of protruding tooth, arcuation pressure relief opening 15 surperficial each points add 1/3 of protruding tooth 10 height apart from pot mouth planar central point average distance pot port radius, the outer rim setting of pot cover 3 and sealing ring 4 contact positions and pressure relief opening 15 positions corresponding to outer lug eject chamber 5, eject 5 sides 9, chamber and pot cover 3 intermarginal smooth connections outward.

Embodiment 4: referring to Fig. 1,2,3,6

A kind of not quick-fried safe pressure cooker, comprise: pot cover 3, pot body 8, nitrile rubber sealing ring more than 4 parts are formed, the outer rim setting of pot cover 3 and sealing ring 4 contact positions and pressure relief opening 16 positions are corresponding to eject chamber 5 to outer lug, pot body 8 eversion edges 1 protruding tooth 10 is provided with recessed inwards trapezoidal pressure relief opening 16, and trapezoidal pressure relief opening 16 upper bases are that real limit 11 is in the pressure relief opening apart from a pot mouthful planar central point distance: the pot port radius adds wall thickness.

Embodiment 5: referring to Fig. 1,2,7

A kind of not quick-fried safe pressure cooker, comprise: the pot cover 3 that has pressure limiting valve and safety valve, pot body 8, silicone rubber O-ring more than 4 parts, pot cover 3 and pot body 8 are provided with the handle with cover closing and opening safety device of relative engagement respectively, logical hollow structure in pot body 8 also is provided with and is, the hollow inner side plane is the handle 7 on outward-dipping inclined-plane 6, handle 7 top pot bodies 8 eversion edges are provided with through hole 17 on 1 plane, through hole adds 2 wall thickness near the real back gauge pot mouth planar central point distance pot port radius at pot mouthful center, the outer rim setting of pot cover 3 and sealing ring 4 contact positions and through hole 17 positions corresponding to outer lug eject chamber 5, eject chamber 5 sides 9 and pot cover 3 outer rim smooth connections.

Embodiment 6: referring to Fig. 1,2,8

A kind of not quick-fried safe pressure cooker, comprise: the pot cover 3 that has pressure limiting valve and safety valve, pot body 8, silicone rubber O-ring more than 4 parts, pot cover 3 and pot body 8 are provided with the handle with cover closing and opening safety device of relative engagement respectively, logical hollow structure in pot body 8 also is provided with and is, the hollow inner side plane is the handle 7 on outward-dipping inclined-plane 6, this handle 7 top pot bodies 8 eversion edges 1 protruding tooth 18 is arcuation, camber line is less than or equal to a pot port radius apart from the solstics at pot mouth center apart from the distance at pot mouth center and adds protruding tooth height, the outer rim setting of pot cover 3 and sealing ring 4 contact positions and the protruding tooth of arcuation 18 positions corresponding to outer lug eject chamber 5, eject chamber 5 sides 9 and pot cover 3 outer rim smooth connections.

Embodiment 7: referring to Fig. 1,2

A kind of not quick-fried safe pressure cooker, comprise: the pot cover 3, pot body 7, silicone rubber O-ring more than 4 parts that have pressure limiting valve and safety valve, pot cover 3 and pot body 7 are provided with the handle with cover closing and opening safety device of relative engagement respectively, in also being provided with and being, pot body 7 leads to the handle 7 that hollow structure, hollow inner side plane are outward-dipping inclined-plane 6, the outer rim setting of pot cover 3 and sealing ring 4 contact positions and handle 7 positions corresponding to outer lug eject chamber 5, eject chamber 5 sides 9 and pot cover 3 outer rim smooth connections.

Claims

1. not quick-fried safe pressure cooker comprises: pot cover, pot body, several parts of sealing ring are formed, and the outer rim that it is characterized in that pot cover [3] and sealing ring [4] contact position is provided with and ejects chamber [5] to outer lug.

2. according to the described a kind of not quick-fried safe pressure cooker of claim 1, it is characterized in that described eject side, chamber [5] [9] and pot cover [3] outer rim smooth connection.

3. according to claim 1 or 2 described a kind of not quick-fried safe pressure cookers, it is characterized in that described pot body [8] eversion edge [1] and pot cover eject corresponding position, chamber [5] recessed inwards pressure relief opening [2] is set.

4. according to the described a kind of not quick-fried safe pressure cooker of claim 3, it is characterized in that described pressure relief opening [2] position is arranged between the protruding tooth [10] of a pot body [8] eversion edge [1] setting.

5. according to the described a kind of not quick-fried safe pressure cooker of claim 4, it is characterized in that described pot body [8] is provided with handle [7], pressure relief opening [2] position is arranged between the protruding tooth [10] of handle [7] top pot body [8] eversion edge [1] setting.

6. according to the described a kind of not quick-fried safe pressure cooker of claim 5, it is characterized in that described handle [7] setting is interior logical hollow structure, the hollow inner side face is outward-dipping inclined-plane [6].

7. according to claim 1,2,4,5 or 6 described a kind of not quick-fried safe pressure cookers, it is characterized in that real limit [11] apart from a pot mouthful planar central point distance range is in the described pressure relief opening [2]: the pot port radius adds wall thickness～pot port radius and adds the protruding tooth of eversion edge [1] [10] highly.

8. according to the described a kind of not quick-fried safe pressure cooker of claim 7, it is characterized in that described sealing ring [4] adopts silicone rubber O-ring.