CN2822448Y

CN2822448Y - Pressure electrical cooker

Info

Publication number: CN2822448Y
Application number: CN 200520062226
Authority: CN
Inventors: 何志刚; 郑启坚; 郑慧
Original assignee: AIDE ELECTRIC APPLIANCE Co Ltd SHUNDE DISTRICT FOSHAN CITY
Current assignee: AIDE ELECTRIC APPLIANCE Co Ltd SHUNDE DISTRICT FOSHAN CITY
Priority date: 2005-08-02
Filing date: 2005-08-02
Publication date: 2006-10-04
Anticipated expiration: 2015-08-02

Abstract

The utility model relates to a pressure electrical cooker which comprises a cooker cover, an outer cover, an insulating cover, an inner cooker, a heating plate and a pressure control mechanism, wherein a sealing ring is arranged between the inner cooker and the cooker cover; the inner cooker is arranged on the heating plate; a drive rod is fixed at the bottom part of the heating plate; the lower end of the drive rod penetrates through the bottom part of the insulating cover; the lower part of the drive rod is over against a control switch in the pressure control mechanism; at least three N-shaped plate springs are uniformly distributed and fixed at the inside circle face of the lower end of an insulating cover cylinder; the free end of each plate spring is tilted and extended to the inner-lower part, and the heating plate is arranged on the bevel faces of the free ends of the plate springs. Because the heating plate is mainly supported by the plate springs fixed on the inside circle face of the lower end of the insulating cover cylinder, the tensile strength and the compressive strength of the cylinder are larger than the bearing strength of a bottom plane. As a result, the bearing pressure of the bottom part of the insulating cover can be effectively reduced to avoid the permanent deformation of the bottom part of the insulating cover. The utility model has stable and reliable performance and long service life of products.

Description

A kind of pressure electric cooker

Technical field

The utility model relates to culinary electric cooker, and particularly a kind of pressure electric cooker belongs to the improvement of prior art.

Background technology

The existing common part of pressure electric cooker; it is pot in utilizing; pot cover; sealing ring and stay-warm case are combined into closed chamber; between heat-generating disc and stay-warm case, be provided with resilient supporting unit or directly utilize the stay-warm case bottom as resilient supporting unit; after the annular seal space internal pressure raises; by interior pot bottom; heat-generating disc is transmitted to the heat-generating disc support foot to pressure and acts on the resilient supporting unit bottom the stay-warm case or act directly on the stay-warm case bottom; make this resilient supporting unit or stay-warm case bottom produce distortion; utilize this deflection to drive the dynamic seal (packing) state of power-off protection apparatus and change closed chamber; when deflection was enough big, dynamic seal (packing) was lost efficacy and was produced the following operation mode of peripheral pressure release.In above-mentioned this class technical scheme, because all downward pressures all act on resilient supporting unit and stay-warm case bottom, therefore cause stay-warm case bottom permanent deformation easily, cause the dynamic seal (packing) state that to realize closed chamber, influence the performance of pressure electric cooker, whole electric cooker can not normally use.

The utility model content

The purpose of this utility model is the shortcoming that overcomes prior art, provides a kind of and can effectively reduce the suffered pressure in stay-warm case bottom, avoids stay-warm case bottom permanent deformation, pressure electric cooker stable and reliable for performance.

The purpose of this utility model is realized by following technical proposals: the utility model comprises pot cover, outer cover, stay-warm case, interior pot, heating board, pressure control mechanism, be provided with sealing ring between interior pot and pot cover, interior pot places on the heating board, the heating board bottom is fixed with drive rod, the stay-warm case bottom is passed in the drive rod lower end, its below gauge tap in the pressure control mechanism, on the inside circumference face of stay-warm case cylinder lower end, evenly distribute and be fixed with at least 3 " N " shape leaf springs, the free end of leaf spring is the below slant dilation inwardly, and heating board places on the free-ended inclined-plane of leaf spring.

After the utility model annular seal space internal pressure raises, by interior pot bottom pressure is transmitted to heating board, heating board promptly can push the leaf spring that supports its outer side-lower, make outside, the distortion downwards of leaf spring, heating board can be along the free-ended inclined-plane of leaf spring to bottom offset, when the annular seal space internal pressure is elevated to certain value, the gauge tap that gets final product in the driving pressure controlling organization to bottom offset of heating board stops the dynamic seal (packing) state that heating board generates heat and changes closed chamber, when displacement was enough big, dynamic seal (packing) was lost efficacy and was produced the mode of operation of peripheral pressure release; When the annular seal space internal pressure reduces, heating board leaf spring inwardly, the free-ended inclined-plane of the elastic force effect lower edge leaf spring that makes progress is to top offset, resets gradually, recovers operate as normal.

For the utility model heating board can be resetted behind bottom offset faster and better, also be fixed with the auxiliary reset bar in the heating board bottom, release link is passed the stay-warm case bottom, and its lower end is provided with fixed head, is connected with spring-assisted reduction between fixed head and stay-warm case bottom surface.When heating board to bottom offset, spring-assisted reduction is stretched, when heating board when top offset resets, the elastic force of spring-assisted reduction can assist leaf spring to promote heating board jointly to reset faster and better.

In order to make the heating board in the utility model more stable in free-ended inclined-plane upper and lower displacement process along leaf spring, on the free-ended inclined-plane of leaf spring, have chute, outside heating board, be provided with slide block on the position of the corresponding chute of side-lower, slide block snaps in the chute.Like this, heating board is subjected to the restriction of chute more stable in the free-ended inclined-plane upper and lower displacement process along leaf spring.

The beneficial effects of the utility model are: since heating board mainly be with leaf spring as support, and leaf spring is to be fixed on the inside circumference face of stay-warm case cylinder lower end, cylindrical tensile strength and compression strength are all big than the intensity that bear the baseplane; And the power that heating board moves down does not produce pressure to the bottom substantially.So the utility model can effectively reduce the suffered pressure in stay-warm case bottom, avoids stay-warm case bottom permanent deformation, and is stable and reliable for performance, long product lifecycle.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the partial enlarged drawing of Fig. 1;

Fig. 3 is the stereogram of the leaf spring in the utility model.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described further.

As Fig. 1, shown in Figure 2, the utility model comprises pot cover, outer cover 1, stay-warm case 2, interior pot 3, heating board 5, pressure control mechanism, be provided with sealing ring between interior pot 3 and pot cover, interior pot 3 places on the heating board 5, heating board 5 bottoms are fixed with drive rod, stay-warm case 2 bottoms are passed in the drive rod lower end, its below gauge tap in the pressure control mechanism, on the inside circumference face of stay-warm case 2 cylinder lower ends, evenly distribute and fix 3 " N " shape leaf springs 4, the quantity of leaf spring 4 also can be more than 3, the fixing of leaf spring 4 can adopt screw or rivet to fix, and also can adopt alternate manner to fix, and the free end 41 of leaf spring 4 is the below slant dilation inwardly; As shown in Figure 3, have chute 42 on the inclined-plane of leaf spring free end 41, be provided with slide block 51 on the position of the corresponding chute 42 of side-lower outside heating board 5, slide block 51 snaps in the chute 42, and heating board 5 is placed on the inclined-plane of free end 41 of leaf spring 4.Also be fixed with auxiliary reset bar 8 in heating board 5 bottoms, release link 8 is passed stay-warm case 2 bottoms, and its lower end has been screwed fixed head 6, is connected with spring-assisted reduction 7 between fixed head 6 and stay-warm case 2 bottom surfaces.

When the utility model uses, by pot cover, sealing ring, after the heating rising of the annular seal space internal pressure that stay-warm case is formed with heating board 5, by interior pot 3 bottoms pressure is transmitted to heating board 5, heating board 5 promptly can push the leaf spring 4 that supports its outer side-lower, make leaf spring 4 outside, distortion downwards, simultaneously, spring-assisted reduction 7 is stretched, slide block 51 on the heating board 5 can be along leaf spring upper hopper chute 42 to lower slider, like this heating board 5 thereupon along the inclined-plane of the free end 41 of leaf spring 4 to bottom offset, when the annular seal space internal pressure is elevated to certain value, the gauge tap that gets final product in the driving pressure controlling organization to bottom offset of heating board 5 stops the dynamic seal (packing) state that heating board 5 generates heat and changes closed chamber, when displacement was enough big, dynamic seal (packing) was lost efficacy and was produced the mode of operation of peripheral pressure release; Along with heating board 5 stops heating, the annular seal space internal pressure reduces gradually, heating board 5 leaf spring 4 inwardly, chute 42 on the elastic force acting in conjunction lower edge leaf spring 4 of the elastic force that makes progress and spring-assisted reduction 7 is to top offset, resets gradually, recovers operate as normal at last again.

Claims

1, a kind of pressure electric cooker, comprise pot cover, outer cover (1), stay-warm case (2), interior pot (3), heating board (5), pressure control mechanism, be provided with sealing ring between interior pot (3) and pot cover, interior pot (3) places on the heating board (5), heating board (5) bottom is fixed with drive rod, stay-warm case (2) bottom is passed in the drive rod lower end, its below gauge tap in the pressure control mechanism, it is characterized in that on the inside circumference face of stay-warm case (2) cylinder lower end, evenly distributing and be fixed with at least 3 " N " shape leaf springs (4), the free end (41) of leaf spring (4) is the below slant dilation inwardly, and heating board (5) places on the inclined-plane of leaf spring free end (41).

2, pressure electric cooker according to claim 1, it is characterized in that also being fixed with auxiliary reset bar (8) in described heating board (5) bottom, release link (8) is passed stay-warm case (2) bottom, its lower end is provided with fixed head (6), is connected with spring-assisted reduction (7) between fixed head (6) and stay-warm case (2) bottom surface.

3, pressure electric cooker according to claim 1 and 2, it is characterized in that on the inclined-plane of described leaf spring free end (41), having chute (42), be provided with slide block (51) on the position of the corresponding chute of side-lower (42) outside heating board (5), slide block (51) snaps in the chute (42).