CN202408458U - Pressure relief device of electric pressure cooker - Google Patents

Abstract

The utility model relates to a pressure relief device of an electric pressure cooker. The pressure relief device comprises a pot cover, a valve body provided with an inner cavity, a valve seat provided with a through hole and a valve cover, wherein the valve body penetrates through the pot cover, the valve seat is connected at the lower part of the valve body to fix the valve body on the pot cover, the valve cover is covered on the valve body, and the pressure relief device is characterized in that a pressure relief through hole is formed on the side wall and/or the top of the inner cavity of the valve body, and an elastic sealing mechanism is covered on the pressure relief through hole. According to the utility model, the valve body is provided with the pressure relief through hole, and the pressure relief through hole is sealed by the elastic sealing mechanism which can not reset automatically, thus pressure is relieved when the electric pressure cooker is in abnormal operation and pressure is more than rated safety pressure, automatic resetting can not be carried out after the pressure is relieved, and use safety of the electric pressure cooker is guaranteed.

Description

A kind of pressure relief device of electric pressure cooking saucepan

Technical field

The utility model relates to electric pressure cooking saucepan, especially a kind of pressure relief device of electric pressure cooking saucepan.

Background technology

Electric pressure cooking saucepan is owing to its cooking food power saving, save time, and is simple to operation, receives increasing people's favor.For safety, existing electric pressure cooking saucepan is equipped with pressure relief device, and when the pressure in electric pressure cooking saucepan surpassed normal rating pressure, if heating plate works on, at this moment, pressure relief device will start, and from pot, discharges gas and reduces pot inner pressure to guarantee safety.But present most electric pressure cooking saucepan pressure relief device is after the non-normal working pressure release appears in electric pressure cooking saucepan; As long as wait the pot cooling, can automatically reset, restart again; Electric pressure cooking saucepan can carry out culinary art work again, and this stays great potential safety hazard for the user in use in the future.

Summary of the invention

The purpose of the utility model is the shortcoming that overcomes prior art, and a kind of pressure relief device of electric pressure cooking saucepan is provided, and can non-normal working occur at electric pressure cooking saucepan; And during the over proof safe pressure of pressure; Carry out pressure release, can not automatically reset after the pressure release, to guarantee the safe in utilization of electric pressure cooking saucepan.

The technical scheme that realizes the utility model purpose is that a kind of pressure relief device of electric pressure cooking saucepan comprises pot cover, is provided with the valve body of internal cavity, the valve seat that is provided with through hole and valve gap; Valve body passes pot cover; Valve seat is connected valve body lower portion valve body is fixed on the pot cover, and valve gap covers on the valve body, it is characterized in that; Or/and be provided with the pressure release through hole on the top, be coated with elastic packing mechanism at the internal cavity sidewall of said valve body on the pressure release through hole.

Above-mentioned elastic packing mechanism is rigid silica gel circle.The intensity of rigid silica gel circle is decided according to the pressure release force value of design, and when the electric pressure cooking saucepan pot inner pressure rose to the pressure release force value, rigid silica gel circle was promptly broken by air pressure, and the sealing of pressure release through hole is destroyed, and realizes pressure release.

Above-mentioned elastic packing mechanism is ball or flexible sheet, in said elastic packing mechanism, retention mechanism is installed, and like spring, butterfly plate etc., ball or flexible sheet is pressed on the pressure release through hole of valve body internal cavity.

Be provided with valve seat insert between above-mentioned valve seat and the pot cover.

Internal cavity for fear of food obstruction valve seat through-hole and valve body is coated with Anti-stop cover in the valve seat lower end, is distributed with through hole on the Anti-stop cover.

When the utility model uses, in the electric pressure cooking saucepan cooking process, if the non-normal working situation; The pot internal gas pressure constantly rises, and when pressure reached predefined pressure release pressure, air pressure can promote the elastic packing mechanism action; The retention mechanism slippage; The sealing of pressure release through hole on the valve body is destroyed, and gas discharges via pressure release through hole and the valve gap on Anti-stop cover, the valve body internal cavity, realizes pressure release.After the pressure release, the rigid silica gel circle of disconnection can not restore to the original state automatically, and perhaps retention mechanism can not automatically reset, and the pressure release through hole on the valve body can't reseal automatically, can reuse after can only artificially repairing.

The beneficial effect of the utility model is owing to be provided with valve body pressure release through hole, and the pressure release through hole by can not be automatically reset the sealing of elastic packing mechanism; Therefore; Can non-normal working occur at electric pressure cooking saucepan, and during the over proof safe pressure of pressure, carry out pressure release; Can not automatically reset after the pressure release, guarantee the safe in utilization of electric pressure cooking saucepan.

Description of drawings

Fig. 1 is the structural representation of the electric pressure cooking saucepan of use the utility model;

Fig. 2 is the enlarged drawing of the utility model (the A part among Fig. 1) when being in sealing state;

Fig. 3 is the enlarged drawing of the utility model (the A part among Fig. 1) when being in the pressure release state, gas flow direction when arrow is represented pressure release among the figure.

The specific embodiment

Further specify below in conjunction with the specific embodiment of accompanying drawing the utility model.

Like Fig. 1, shown in Figure 2; A kind of pressure relief device of electric pressure cooking saucepan; Comprisepot cover 1, be provided with the valve body 3 of internal cavity, the valve seat 6 that is provided with through hole and valve gap 2; Valve body 3 passespot cover 1, and valve seat 6 is fixed on valve body 3 on thepot cover 1 through being threaded in valve body 3 bottoms, is provided with valve seat insert 7 between said valve seat 6 and thepot cover 1; Valve gap 2 fixedly covers on the valve body 3, or/and be provided with pressure release through hole 31 on the top, is coated with elastic packing mechanism 4 at the internal cavity sidewall of said valve body 3 on the pressure release through hole 31.

Above-mentioned elastic packing mechanism 4 is rigid silica gel circle; The intensity of rigid silica gel circle is decided according to the pressure release force value of design, and when the electric pressure cooking saucepan pot inner pressure rose to the pressure release force value, rigid silica gel circle was promptly broken by air pressure; The sealing of pressure release through hole 31 is destroyed, and realizes pressure release.

Above-mentioned elastic packing mechanism 4 also can be ball or flexible sheet, on the ball of said elastic packing mechanism 4 or flexible sheet, presses to be equipped with retention mechanism 5, like spring, butterfly plate etc.; Concrete structure is that spring or butterfly version one end are pressed on ball or the flexible sheet, and the other end is resisted against on the inwall of valve gap 2, when the electric pressure cooking saucepan pot inner pressure rises to the pressure release force value; Air pressure outwards pushes ball or flexible sheet; Ball is skidded off in the pressure release through hole, or flexible sheet deformation, the sealing of pressure release through hole 31 is destroyed; Spring or butterfly plate slippage realize pressure release.

Internal cavity for fear of food obstruction valve seat 6 through holes and valve body 3 is coated with Anti-stop cover 8 in the valve seat lower end, is distributed with through hole on the Anti-stop cover 8.

When the utility model is installed; Earlier the elastic packing mechanism 4 that designs is packed in the pressure release through hole 31 of valve body 3; Again retention mechanism 5 is pressed in the elastic packing mechanism 4 after loading onto valve gap 2; Be inserted in valve seat insert 7 in valve body 3 lower ends again, utilize valve seat 6 that valve body 3 is fixed on thepot cover 1 at last, install Anti-stop cover 8 again and get final product.

When the utility model used, its integral installation is on thepot cover 1 of electric pressure cooking saucepan, and was as shown in Figure 1.In the electric pressure cooking saucepan cooking process, if in proper working order, then the utility model is in sealing state, and is as shown in Figure 2.If the non-normal working situation is as shown in Figure 3, the pot internal gas pressure constantly rises; When pressure reaches predefined pressure release pressure; Air pressure can promote 4 actions of elastic packing mechanism, and retention mechanism 5 slippages are destroyed the sealing of pressure release through hole 31 on the valve body 3; Gas discharges via pressure release through hole 31 and the valve gap 2 on Anti-stop cover 8, valve body 3 internal cavities, realizes pressure release.After the pressure release, the rigid silica gel circle of disconnection can not restore to the original state automatically, and perhaps retention mechanism 5 can not automatically reset, and the pressure release through hole 31 on the valve body 3 can't reseal automatically, can reuse after can only artificially repairing, and guarantees the safety of using.

Claims (5)

1. the pressure relief device of an electric pressure cooking saucepan; Comprise pot cover (1), be provided with the valve body (3) of internal cavity, the valve seat (6) that is provided with through hole and valve gap (2); Valve body (3) passes pot cover (1); Valve seat (6) is connected valve body (3) bottom valve body (3) is fixed on the pot cover (1), and valve gap (2) covers on the valve body (3), it is characterized in that; Or/and be provided with pressure release through hole (31) on the top, be coated with elastic packing mechanism (4) at the internal cavity sidewall of said valve body (3) on the pressure release through hole (31).

2. the pressure relief device of electric pressure cooking saucepan according to claim 1 is characterized in that, said elastic packing mechanism (4) is rigid silica gel circle.

3. the pressure relief device of electric pressure cooking saucepan according to claim 1; It is characterized in that; Said elastic packing mechanism (4) is ball or flexible sheet; On said ball or flexible sheet, be provided with retention mechanism (5), ball or flexible sheet have been pressed on the pressure release through hole (31) of valve body (3) internal cavity.

4. the pressure relief device of electric pressure cooking saucepan according to claim 1 is characterized in that, is provided with valve seat insert (7) between said valve seat (6) and the pot cover (1).

5. according to the pressure relief device of the arbitrary described electric pressure cooking saucepan of claim 1 to 4, it is characterized in that be coated with Anti-stop cover (8) in said valve seat (6) lower end, Anti-stop cover is distributed with through hole on (8).

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