CN2165753Y - Excess pressure automatic double-exhausting gas striker clog-proof easing valve for pressure cooker - Google Patents

Abstract

The utility model relates to a firing-pin clogging-proof safety valve which can discharge gas automatically and doubly in case of over pressure for a pressure cooker. The utility model is composed of a valve pocket [2], a spring [3], a core shaft [4]and a lower valve lid [6], wherein, the lower end of the core shaft is provided with a firing pin [8] which penetrates through the gas hole of the lower valve lid; the valve pocket is provided with a plurality of exhaust holes. The utility model, which has simple structure and use safety and avoids the explosion of the pressure cooker caused by being clogged resulting in human body casualties, is an indispensable safety valve for a pressure cooker.

Description

Excess pressure automatic double-exhausting gas striker clog-proof easing valve for pressure cooker

The utility model relates to a kind of pressure cooker easing valve, the anti-blocking easing valve of particularly a kind of superpressure automatic vent striker.

In the prior art, the valve pocket top of the easing valve of pressure cooker has steam vent, poppet shaft is housed in the valve pocket, by spring compression on bottom flange, bottom flange has pore, when the pressure cooker superpressure, air pressure promotes to move exhaust decompression on the mandrel, play safety effect, if but object has stopped up the bottom flange pore, and easing valve more can not play its due effect, introduce according to Chinese Business, China has the blast of 6000 pressure cookers every year at least, its immediate cause be on the pot cover all steam vents blocked due to, the harm personal safety.

The purpose of this utility model is for the shortcoming that overcomes above-mentioned prior art provides the automatic double gas striker of a kind of improved pressure cooker superpressure anti-blocking easing valve, improves the security that pressure cooker uses.

The purpose of this utility model can realize by following measure: spring is equipped with on the mandrel top in the valve pocket, and the lower end is provided with striker, and striker passes the pore of bottom flange, and the valve pocket middle and lower part offers the atmosphere round.Pressure in the pressure cooker can act directly on striker and the mandrel lower surface, during superpressure, on push away the mandrel exhaust decompression, striker penetrates object easily, avoid stopping up pore, when guaranteeing that safety needs big exhaust, on draw mandrel can use the exhaust that directly communicates of valve pocket steam vent and bottom flange pore.

Concrete structure of the present utility model and embodiment are provided by the following drawings:

Fig. 1 is a longitudinal sectional drawing of the present utility model;

Fig. 2 is the front view of mandrel.

Below with reference to accompanying drawing the utility model is described in further detail: with reference to Fig. 1, Fig. 2, mandrel ［ 4 ］ is contained in the valve pocket ［ 2 ］, spring ［ 3 ］ roof pressure is between mandrel boss ［ 9 ］ and valve pocket, the mandrel lower end is provided with striker ［ 8 ］, striker ［ 8 ］ afterbody point, pyramid type preferably, have groove ［ 11 ］ on the spool of mandrel ［ 12 ］, be that exhaust duct ［ 10 ］ is arranged above the spool, screw thread is arranged at valve pocket ［ 2 ］ bottom, and nut ［ 1 ］ and bottom flange ［ 6 ］ are contained on the valve pocket, easing valve is fixed on pot covers bottom flange ［ 6 ］ and have pore, the spool ［ 11 ］ of mandrel ［ 4 ］ is pressed on the packing ring ［ 7 ］ on the bottom flange ［ 6 ］, striker ［ 8 ］ passes the bottom flange pore, is exposed under the pore, penetrates the big part object in pot easily, make it can not stop up pore, reach the security insurance purpose.

Of the present utility model simple in structure, utilize the effect of striker that easing valve is not stopped up entirely, can little exhaust and big exhaust, improved the safe in utilization of pressure cooker, the casualty accident of avoiding exploding takes place.

Claims (2)

1, the anti-blocking easing valve of the automatic double gas striker of pressure cooker superpressure has valve pocket [2], mandrel [4], spring [3], bottom flange [6] to form, and it is characterized in that mandrel [4] lower end is provided with striker [8], and striker passes bottom flange [6] pore, and valve pocket [2] has big steam vent [5].

2, easing valve according to claim 1 is characterized in that striker is conical.

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