CN202436841U - Safety pressure relief device of electric pressure cooker - Google Patents

Abstract

The utility model relates to a safety pressure relief device of an electric pressure cooker. The safety pressure relief device comprises a cooker cover, a valve and a valve seat, wherein the valve penetrates through the cooker cover, the upper end of the valve seat is sleeved in the valve, the valve seat is provided with an inner cavity, the valve is fixed on the cooker cover by the valve seat, a valve seat sealing ring is arranged between the valve seat and the cooker cover, and an ejector pin which can seal the inner cavity is placed at the upper end of the inner cavity of the valve seat. The safety pressure relief device of the electric pressure cooker is characterized in that an elastic plate is fixed at the upper end of the ejector pin, the periphery of the elastic plate is fixed on the valve, and the elastic plate is in the shape of a curved surface. Due to a non-self-resetting sealing structure consisting of the ejector pin and the elastic plate, the safety pressure relief device can relieve pressure when the electric pressure cooker works abnormally and the pressure of the electric pressure cooker exceeds rated safety pressure, and cannot automatically reset after relieving pressure, and the service safety of the electric pressure cooker is ensured.

Description

The safe pressure relief device of electric pressure cooking saucepan

Technical field

The utility model relates to electric pressure cooking saucepan, especially the safe 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 safe 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, the safe pressure relief device of electric pressure cooking saucepan, and valve body and the upper end of comprise pot cover, running through pot cover is inserted in the valve body and is provided with the valve seat of internal cavity; Valve seat is fixed on valve body on the pot cover, between valve seat and pot cover, is provided with valve seat insert, and the upper ends of valve seat internal cavity has the thimble that can seal said internal cavity; It is characterized in that; Upper end at said thimble is fixed with flexure strip, and the flexure strip periphery is fixed on the valve body, and flexure strip is a curve form.

For strengthening the sealing property of thimble, be wrapped with silicon rubber at said thimble to valve seat internal cavity upper end.

Stop up the internal cavity of valve seat for fear of food, be coated with Anti-stop cover, be distributed with through hole on the Anti-stop cover in the valve seat fixed-site of pot cover inner surface.

Scald the user from the high-temperature steam of valve seat internal cavity upper end ejection during for fear of pressure release, on valve body, be coated with protective cover.

Be distributed with through hole on the above-mentioned protective 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 the pressure that upwards acts on the thimble also increases gradually, when pressure reaches the safe pressure of a certain setting; The pressure that upwards acts on the thimble can promote upwards distortion of flexure strip, and thimble is upwards mentioned, and thimble is destroyed the sealing of valve seat internal cavity upper end; Gas discharges via Anti-stop cover, valve seat internal cavity and valve body top or periphery, realizes pressure release.After the pressure release, flexure strip can not reset in downward automatically deformation, can reuse after can only artificially repairing.

The beneficial effect of the utility model is owing to be provided with the hermetically-sealed construction of thimble and flexure strip non-automatic-reset, 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, guaranteed 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, the safe pressure relief device of electric pressure cooking saucepan, valve body 3 and the upper end ofcomprise pot cover 1, running throughpot cover 1 is inserted in the valve body 3 and is provided with thevalve seat 6 of internal cavity;Valve seat 6 is fixed on valve body 3 on thepot cover 1; Betweenvalve seat 6 andpot cover 1, be provided with valve seat insert 7, the upper ends ofvalve seat 6 internal cavities has thethimble 5 that can seal said internal cavity, is fixed withflexure strip 4 in the upper end of saidthimble 5;Flexure strip 4 peripheries are fixed on the valve body 3, andflexure strip 4 is a curve form.

For strengthening the sealing property of 5 pairs ofvalve seat 6 internal cavities upper ends of thimble, be wrapped with silicon rubber at saidthimble 5, not shown.

Stop up the internal cavity ofvalve seat 6 for fear of food, be coated with Anti-stop cover 8, be distributed with through hole on the Anti-stop cover 8 invalve seat 6 fixed-site ofpot cover 1 inner surface.

Scald the user from the high-temperature steam ofvalve seat 6 internal cavities upper end ejection during for fear of pressure release, on valve body 3, be coated with protective cover 2.Also exhaust hole can be set on the said protective cover 2.

When the utility model is installed, be fixedly installed on the valve body 3 afterearlier flexure strip 4 andthimble 5 being riveted together again, be inserted in thepot cover 1 after on valve body 3, loading onto protective cover 2 again, place valve seat insert 7 then, the lower end that is tightened on valve body 3 withvalve seat 6 is again fixed.

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,flexure strip 4 arches upward downwards, andthimble 5 makes the utility model be in sealing state, and is as shown in Figure 2.If the non-normal working situation, the pot internal gas pressure constantly rises, and the pressure that upwards acts on thethimble 5 also increases gradually; When pressure reaches the safe pressure of a certain setting; Upwards act on pressure on thethimble 5 can promoteflexure strip 4 upwards distortion arch upward,thimble 5 is upwards mentioned, the sealing of 5 pairs ofvalve seat 6 internal cavities upper ends of thimble is destroyed; Gas discharges via Anti-stop cover 8,valve seat 6 internal cavities and valve body 3 tops or periphery, realizes pressure release.After the pressure release,flexure strip 4 can not reset in downward automatically deformation, can reuse after can only artificially repairing.Guarantee the safety used.

Claims (5)

1. the safe pressure relief device of electric pressure cooking saucepan; Valve body (3) and the upper end of comprise pot cover (1), running through pot cover (1) is inserted in the valve body (3) and is provided with the valve seat (6) of internal cavity; Valve seat (6) is fixed on valve body (3) on the pot cover (1), between valve seat (6) and pot cover (1), is provided with valve seat insert (7), and the upper ends of valve seat (6) internal cavity has the thimble (5) that can seal said internal cavity; It is characterized in that; Be fixed with flexure strip (4) in the upper end of said thimble (5), flexure strip (4) periphery is fixed on the valve body (3), and flexure strip (4) is a curve form.

2. the safe pressure relief device of electric pressure cooking saucepan according to claim 1 is characterized in that, is wrapped with silicon rubber at said thimble (5).

3. the safe pressure relief device of electric pressure cooking saucepan according to claim 1 and 2 is characterized in that, is coated with Anti-stop cover (8) in the valve seat fixed-site of pot cover (1) inner surface, and Anti-stop cover is distributed with through hole on (8).

4. the safe pressure relief device of electric pressure cooking saucepan according to claim 3 is characterized in that, on valve body (3), is coated with protective cover (2).

5. the safe pressure relief device of electric pressure cooking saucepan according to claim 4 is characterized in that, said protective cover is distributed with through hole on (2).

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