CN2388476Y - Safety opening device for pressure container - Google Patents

Abstract

The utility model relates to a safety auxiliary device for a pressure container, which comprises a safety valve, a locking mechanism, and a spring which connects a top rod on the safety valve and a locking rod on the locking mechanism. The top rod moves following the change of pressure in the pressure container. When pressure in the container is greater than the elastic force of the spring, the top rod drives the locking rod to lock a pressure lid. Inversely, the top rod drives the locking rod to open the pressure lid. The utility model is especially suitable for assembling on a pressure cooker, with the advantages of simple and novel structure, low cost, strong versatility, convenient assembly and operation, etc.

Description

The novel opening device of pressure vessel safety

The utility model relates to the auxiliary operative installations of a kind of pressure vessel safety.

Hold the Safety performance of using in order to improve pressure, Patent Office of the People's Republic of China announced that the patent No. is 97215278.4 " pressure cooker lid opening safety means " on November 7th, 1998, it is increasing a self-locking mechanism between the lower handle on the usual pressure pot, this self-locking mechanism is made up of the push pedal, safety bar, spring and the push rod that are contained in the safety valve on the pot cover and be contained on the upper handle.It makes pressure cooker be in exhaust condition when pot cover does not close up safely; Do not arrange at the pot inner vapor and to finish, before pressure was not eliminated, pressure cooker was in self-locking state; Pot cover can not be opened; When it has avoided pressure cooker to use effectively, because of operate miss causes an explosion accident.But exist the disadvantage of complex structure, narrow application range.

The purpose of the utility model is to provide a kind of simple in structure, easy to operate pressure vessel safety novel opening device.

Technical solutions of the utility model are such; It comprises safety valve, locking framework and spring.Safety valve is applied in the push rod of valve seat by the valve seat that is contained on the pressure cover, and the leather cup cover that is enclosed within the valve seat bottom is formed.Locking framework comprises out the locked groove on upper and lower mated position, places the locking bar on the push rod.Both ends of the spring is separately fixed on the locking cap of push rod and the adjusting cap on the match equipment.When the pressure in the container during greater than spring force the leather cup cover drive push rod and promote locking bar, locking bar is displaced in the locked groove.At this moment, upper and lower handle can not vent, and container can not be opened, when container at vapor tension during less than spring force, spring promotes push rod and moves.This hour locking lever also moves and breaks away from the locked groove of match equipment with push rod, pressure cover can be opened, thereby realizes the purpose of pressure vessel safety unlatching.

The utility model is compared with existing pressure cooker device safe in utilization, has simple in structurely, and at the bottom of the cost, highly versatile, assembling and advantage such as easy to use are particularly suitable for being assemblied on the pressure cooker.

Below in conjunction with the embodiment shown in the accompanying drawing 1 the utility model is described in further detail.

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

The novel opening device of pressure vessel safety is by safety valve, and locking framework and spring 16 constitute.

Safety valve comprises that gasket seal 8 is fixed on the valve seat 10 on the pressure cover 6 with nut 9, and valve seat 10 rises, and cavity matches.And play the boss of position-limiting action, boss and perforation chamber interference fit, valve seat 10 and push rod 14 bottom inclusions leather cup cover 13, and leather cup cover 13 can promote push rod and move under the effect of pressure.In the middle of the push rod 14 locking cap 15 is arranged, right-hand member has fixedly locking bar.

Be with gasket seal 12 on push rod 14 boss, to guarantee sealing between push rod 14 and the valve seat 10.

Locking framework places the locking bar on the push rod to form by the locked groove of opening on upper and lower match equipment 2,1 17.Spring 16 1 ends are on the adjusting cap 18 of the other end at match equipment 2 on the locking cap 15 of push rod 14.

When the pressure in the container during greater than spring 16 elastic force push rod 14 promoted by leather cup cover 13, locking bar 4 moves down push rod 14, move in the locked groove 17 of match equipment 1 down, at this moment, upper and lower match equipment 2,1 locking, pressurized container can not be opened.When the pressure in the container during less than spring 16 elastic force, spring 16 promotes push rods 14 and moves to left, and this hour locking lever 4 moves to left with push rod 14.Break away from the locked groove 17 of match equipment 1 down, locking framework is opened, and container can be opened.

Claims (1)

1, a kind of pressure vessel safety opening device comprises safety valve, locking framework and spring (16), it is characterized in that: safety valve is applied in the leather cup cover (13) that push rod (14) on the valve seat (10) is enclosed within valve seat (10) bottom and forms by being contained in valve seat (10) on the pressure cover (6), locking framework comprises out that the locked groove (17) on upper and lower match equipment (2,1) places the locking bar (4) on the locked groove (17), and spring (16) two ends are separately fixed at locking cap (15) on the push rod (10) and the adjusting cap (18) in the last match equipment (2).

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