CN2439830Y - Multi-safe valve for pressure cooker - Google Patents

Abstract

The utility model belongs to the improvement of a safety valve for pressure cookers, which is composed of a valve seat with a through hole, a valve body penetrating through the valve seat, a valve rod propped and pressed on the port of the valve body and a spring sheathed on the valve rod, wherein, the valve seat is made of rubber material and is inserted on a cooker lid, and the side wall of the valve body is provided with an air discharging hole; the bottom end of the valve body is provided with a valve cap for sealing the through hole. Because the utility model adopts a spring pressure limiting and a rubber valve seat sealing pressure limiting preventing structure systems, the utility model has the advantage of safer use and can be used by matching with ordinary pressure cookers.

Description

Pressure cooker insures safety valve more

The utility model relates to the safety valve on a kind of safety fittings of pressure cooker container, particularly pressure cooker.

Existing pressure cooker safety valve is realized the purpose of strick precaution usually by the pressure limiting on the valve seat steam vent of spring roof pressure by spool; Promptly when pot inner pressure surpass to be set air pressure (200kpa), gas is with spool jack-up and pressure release.But still there is security hidden trouble; If spring is malfunctioning, over-pressure gas can not the toplap spool, and safety valve is just inoperative, like this, may cause bigger injury accident.

The purpose of the utility model is to pressure cooker provides a kind of use safety and reliability, many insurances safety valve of more reasonable structure.

The technical solution of the utility model is achieved in that it comprises the valve seat that has through hole, is applied in the valve body on the valve seat, and roof pressure is enclosed within the spring on the valve rod at the valve rod of valve body port; Body wall is provided with bleeder port, and roof pressure is on the boss and valve interior wall of valve rod respectively at the two ends of spring, and valve seat adopts elastomeric material to make, and is embedded on the pot cover, and the bonnet of energy seal valve seat is equipped with in the valve body bottom.When the pot internal gas pressure rose, air pressure jack-up valve base sealing was on rubber valve seat; When if the pot internal gas pressure surpasses the safe pressure of first setting, air pressure toplap valve rod, and by relief hole, pressure release.If spool is malfunctioning, can not be by jack-up, pot inner pressure continues to raise; When reaching second setting safe pressure, pressure backs down the valve seat pressure release, thereby reaches the purpose of pressure cooker safe handling.

Because the utility model is provided with twice pressure security preventing structure, so its security insurance coefficient is bigger, more reliable.

The utility model can also combine the pressure cooker open and close cover release mechanism, on handle, load onto the interlinked mechanism that application valve body and valve seat open and close, when pressure cooker closes up fully, this mechanism makes the bonnet involution of valve body lower end on through hole, when pressure cooker covers when not in place, have the gap between valve body and the valve seat, pot inner pressure can not rise, thereby can avoid the casualty accident in the folding lid process.

Below in conjunction with embodiment shown in the drawings, the utility model is described in further detail.

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

Fig. 2 is Figure 1A-A broken section enlarged drawing.

Pressure cooker insures safety valve by the valve seat 3 that has through hole 8 more, is applied in the valve body 6 on the valve seat 3, and roof pressure is at the valve rod 5 of valve body 6 ports, and the spring 4 that is enclosed within on the valve rod 5 is formed.

Valve body 5 has and connects chamber 14, connects the bonnet 7 that the port of chamber 14 in pot is equipped with flange band steam vent, connects chamber 14 sidewalls and has bleeder port 15; Taper shape is made on the top of valve rod 6, and the top is combined on the steam vent of bonnet 7, and the two ends roof pressure of spring 4 is on the circular cone platform and valve body 6 roofs of valve rod 5, and valve seat 3 usefulness elastomeric materials are made, and are embedded on the pot cover 1; The chimeric maximum pressure that bears decide on maximum safety pressure power in the pot, generally between jack-up valve rod 5 pressure and pot between the maximum safety pressure power.

Valve body 6 is outer be connected with control its with the interlinked mechanism of valve seat 3 keyings, this interlinked mechanism comprises that an end is fixed on the guard plate 9 on the valve body 6, withstands on the spring 10 of guard plate 9 other ends, is fixed on the pot cover 1 and makes the auxiliary-handle 2 of spring 10 bases; The other end of guard plate 9 is made guide rod 9a, and spring 10 places in the groove of this guide rod 9a, and the other end is enclosed within on the reference column 2a of auxiliary-handle 2; Guide rod 9a bottom embeds in the guide groove 13 of lower handle 12, and guide groove 13 cuts out the direction of rotation gradient along pot cover 1 and raises, when auxiliary-handle 2 overlaps fully with lower handle 12.Guide rod 9a is on the highest platform of the gradient, and at this moment, guard plate 9 draws super valve body 6 under the effect of elastic force, bonnet 7 is sealed on the through hole 8 fully, guarantees in the pot air tight.

When pot cover 1 did not close up, guard plate 9 did not reach the extreme higher position, therefore, can not drive valve body 6 sealing through holes 8, and a pot internal gas pressure can't rise, and covered safeguard protection effect when not in place thereby play pot cover.

Obviously, the utlity model has the safety coefficient height, easy to use, the advantage such as rational in infrastructure, Can support the use with usual pressure.

Claims (3)

1, a kind of pressure cooker insures safety valve more, and it comprises the valve seat (3) that has through hole (8), is applied in the valve body (6) on the valve seat (3), and roof pressure is enclosed within the spring (4) on the valve rod (5) at the valve rod (5) of valve body (6) port; Have bleeder port (15) on valve body (6) sidewall, the two ends difference roof pressure of spring (4) is on the boss and valve body (6) inwall of valve rod (5), it is characterized in that: valve seat (3) is made for elastomeric material, is embedded on the pot cover (1), and the bonnet (7) of seal valve seat (3) is equipped with in valve body (6) bottom.

2, according to the described many insurance safety valves of claim 1, it is characterized in that: the interlinked mechanism that application valve body (6) and valve seat (3) open and close is housed on the handle, and when pressure cooker closed up fully, this interlinked mechanism made valve body (6) involution on through hole (8).

3, according to the described many insurance safety valves of claim 2, it is characterized in that: described interlinked mechanism comprises that an end is fixed on the guard plate (9) on the valve body (6), withstand on the spring (10) of guard plate (9) other end, be fixed on the auxiliary-handle (2) on the pot cover (1); The other end of guard plate (9) is guide rod (9a), the bottom of guide rod (9a) is withstood on the guide groove (13) of lower handle (12), guide groove (13) cuts out the direction of rotation gradient along pot cover (1) and raises, when auxiliary-handle (2) and lower handle (12) when overlapping fully, bonnet (7) is sealed in fully connects on the chamber (8).

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