A kind of anti-overflow device of electric cooker
Technical field
The utility model relates to electric cooker, especially a kind of anti-overflow device of electric cooker, and the improvement that belongs to electric cooker is technological.
Background technology
Its steam valve of existing electric cooker is installed in the electric cooker loam cake; Comprise steam valve cap, steam valve seat; Have guiding steam and discharge and prevent the effect that boiling liquid overflows, in order to increase the anti-overflow capability of the broken bubble of steam valve, a lot of steam valves all are to increase muscle position characteristic in inside; Attempt to hinder the formation of bubble, but DeGrain.
For this reason; Chinese patent " CN200620062716.5 electric cooker steam valve " discloses a kind of structure of in the cavity of valve gap and cavity valve body formation, installing the fan blade assembly; Fan blade rotates under the air-flow effect, makes the thin rice gruel steam that gets in the valve body can effectively break bubble, thereby realizes anti-overflow.But fan blade does not have external power in this structure, only under the air-flow effect, rotates, and receives the viscous obstruction of thin rice gruel easily and can't carry out quick rotation, and when particularly thin rice gruel concentration was big, viscous hindered bigger, and the anti-overflow effect is relatively poor.
Summary of the invention
The purpose of the utility model is to above-mentioned deficiency, and a kind of anti-overflow device of electric cooker is provided, and can effectively improve the broken bubble anti-overflow effect of electric cooker.
The technical scheme that realizes the utility model purpose is: a kind of anti-overflow device of electric cooker; Comprise cover that is provided with pilot hole and the steam valve that is installed on the pilot hole place; Steam valve comprises valve seat that is provided with air inlet and the valve gap that is provided with exhaust outlet, is rotatably mounted with fan on the valve seat, it is characterized in that; The corresponding fan in cover below is fixed with the motor of drive fan, is equipped with magnet in motor and the fan.
Magnet in said motor and the fan is multistage magnet.
Above-mentioned valve seat is provided with the muscle position of projection, and be fixed with dividing plate on the muscle position steam valve is divided into first cavity and second cavity of connection, the air inlet of the corresponding valve seat of first cavity, the exhaust outlet of the corresponding valve gap of second cavity, said fan is arranged in first cavity.
Said fans is a vortex flow fan.
The beneficial effect of the utility model is; Owing to adopt and establish fan, the corresponding structure of establishing CD-ROM drive motor, fan and motor set inside magnet in cover below in the steam valve; Motor can utilize magnetic drive fan to carry out enforceable rotation through cover; Thereby the air-flow at steam valve air inlet place is quickened, reach the anti-overflow effect of effectively broken bubble.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the C-C generalized section of Fig. 1;
Fig. 3 is the structural representation of the utility model embodiment 2.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Embodiment 1:
As shown in Figure 1, the anti-overflow device of present embodiment electric cooker comprises the cover 3 that is provided with pilot hole, the steam valve that sealing is installed in the pilot hole place; Steam valve comprises the valve gap 1 and valve seat 2 that fastens or screw, and valve gap 1 is provided with exhaust outlet 11, and valve seat 2 is provided with air inlet 21; Air inlet 21 is corresponding to the pilot hole place of cover 3, is equipped with in the steam valve steam valve cavity is divided into first cavity 41 of connection and the dividing plate 4 of second cavity 41, and is concrete; Valve seat 2 is provided with the muscle position 22 to the annular of upper process, and muscle position 22 is trapped among the outside of air inlet 21, and dividing plate 4 fixedly is covered in 22 tops, muscle position; Form first cavity 41 between dividing plate 4 and valve seat 2, the muscle position 22; Form second cavity 42 between dividing plate 4 and the valve gap 1, the muscle position 22 of annular is provided with a breach, as the connected entrance that is communicated with first cavity 41 and second cavity 42; Air inlet 21 corresponding first cavitys 41, exhaust outlet 11 corresponding second cavitys 42.
Like Fig. 1, shown in Figure 2, be fixed with bearing pin 5 on the valve seat 2 in first cavity 41, vortex flow fan 6 is installed on the bearing pin 5, and free to rotate; The air inlet of vortex flow fan 6 is towards air inlet 21, and air outlet 62 places the connected entrance place of first cavity 41; Vortex flow fan 6 inside are provided with multistage magnet 61.
The below of cover 3 is provided with the motor 7 that can drive vortex flow fan over against vortex flow fan 6, and motor 7 is fixed on cover 3 belows through screw 8; Be fixed with connector 71 in the rotating shaft of motor 7, the corresponding vortex flow fan 6 inner multistage magnet 61 in the inside of connector 71 are provided with multipole magnet 72, and the setting of multistage magnet 61,71 can strengthen the magneticaction between motor 7 and the vortex flow fan 6; Connector 71 penetrates the flabellum that intermediates such as cover 3, valve seat 2 act on vortex flow fan 6 through magnetic force; Thereby driving flabellum rotates; Make the vapor stream that gets into steam valves first cavity 41 from air inlet 21 through vortex flow fan 6; Get into second cavity 42 from the air outlet 62 of vortex flow fan 6, and discharge electric cooker from exhaust outlet 11.
During work, motor 7 provides power, drives vortex flow fan 6 work; The flabellum that rotates has the air draft effect, makes the inner water vapour of electric cooker get into first cavity 41 through steam valve air inlet 21 fast, and gets into second cavity 42 through air outlet 62 rapidly through the effect of flabellum; External through exhaust outlet 11 discharge electric cookers at last; Ground rotated when flabellum was long, and it is external that the inner water vapour of body of forcing constantly will stew is discharged pot, makes the air pressure of air inlet 21 reduce greatly than other local air pressure; Cause breaking thereby bubble is expanded rapidly because of air pressure is low through here the time, effectively reach broken and steep no-spill effect.
Embodiment 2:
As shown in Figure 3, what present embodiment and embodiment 1 were different is in the steam valve in the present embodiment anti-overflow device dividing plate not to be set; Have only a cavity, air inlet 21, an exhaust outlet 11 in the steam valve, what fan 6 can rotate freely is installed on the valve seat 2, and over against exhaust outlet 11; During work; The same with embodiment 1, motor 7 drive fan 6 are rotated and are made that the air pressure of air inlet 21 is lower than other local air pressure, thereby reach brokenly the no-spill effect of bubble; Other are identical with embodiment 1, no longer detail.