CN2356605Y

CN2356605Y - Bidirectional pressure-release valve

Info

Publication number: CN2356605Y
Application number: CN 98245486
Authority: CN
Inventors: 韦成自
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-22
Filing date: 1998-10-22
Publication date: 2000-01-05
Anticipated expiration: 2008-10-22

Abstract

The utility model provides a bidirectional pressure-limiting valve. The middle upper part of the center of the existing pressure-limiting valve body is provided with a circular hole, the point end of a thin cylindrical shuttle-shaped valve which is threaded through the interior of the hole and is capable of moving up and down is downward, and the exterior of a round platform, wherein, the tail of which is slightly bigger and is protruding is connected with a sleeve ring; one side of the upper part of a valve body is laterally provided with an air suction passage communicated to the center circular hole. As the valve of the utility model moves up and down, the air suction passage is opened or closed, and accordingly, the negative pressure in a pot is limited to form; a sealing rubber ring is effectively protected from being deformed, gas can not leak, and the purpose of extending the service life is achieved.

Description

Two-way pressure limiting valve

The utility model relates to a kind of kitchen utensils, the especially a kind of and matching used two-way pressure limiting valve of pressure cooker.

At present, huge numbers of families have been goed deep in the use of pressure cooker because quick with its cooking, save time, so favored by people.Between pressure cooker lid and pot body, an O-ring seal is arranged,, use promptly to produce distortion soon gradually, leak air because of restoring, so that need often to change owing to often be subjected to the effect of atmospheric pressure and negative pressure.The cushion rubber of selling the now a kind of C font on the market groove of lengthening the life is used for being bumped into the cushion rubber opening part, and the cushion rubber that is crushed is restored, and is air tight, but shortcoming is to use inconvenience, is difficult for covering pot cover, so be difficult to popularization.

The purpose of this utility model provides a kind of simple in structure, and is easy to use, can suppress the generation of negative pressure in the pressure cooker, avoids the O-ring seal compressive deformation, the two-way pressure limiting valve that effectively prolongs its service life.

The utility model is achieved through the following technical solutions: a circular hole is opened in the middle and upper part at existing pressure limiting valve valve body center, in the through hole, thin cylinder spear shape valve tip movable up and down down, the outstanding slightly greatly outer connected set ring of round platform of afterbody, the horizontal air intake passage of opening a logical center hole of valve body top one side.

The utility model opens or closes air intake passage owing to the upper and lower displacement of valve, thereby has limited the formation of negative pressure in the pot, has effectively protected O-ring seal not yielding, can not leak gas, and reaches the purpose that increases the service life.

Elaborate below in conjunction with accompanying drawing.

Fig. 1 is the utility model structural representation.

The utility model is to improve on the basis of existing limiting valve of pressure cooker, a circular hole is opened in middle and upper part at valve body (4) center, thin cylinder spear shape valve (2) tip in the through hole down, the outstanding slightly greatly outer connected set ring (1) of round platform of afterbody, the horizontal air intake passage (3) of opening a logical center hole of valve body top one side.Valve can upper and lowerly move, on move and be the air intake passage closed condition, also be the pressure cooker duty, move down and be the air intake passage opening state.Moving down of valve makes the chance that does not produce negative pressure in the pot forever, limited the formation of negative pressure, thereby the protection O-ring seal is not subjected to the atmosphere flattening deformation, makes it to avoid too early gas leakage.Design feature of the present utility model has also been utilized the natural highland on the pot cover face---and the pressure limiting valve upper side is the air intake passage inlet, can avoid trickle to enter in the pot.The hold concurrently drop handle of pressure limiting valve of the collar, dual-use material, the collar connects valve simultaneously, makes valve possess allocation, allows the user just can perceive or recover the loosening degree of valve, the height reliability of realization pressure limiting valve negative pressure suppression function convenient, at any time when the dress pot is put valve.The weight sum of valve and the collar is equivalent to the weight that air intake passage gets out material, so whole pressure limiting valve is not gained in weight, does not also waste steel.

Claims

1, a kind of two-way pressure limiting valve, form by the turriform valve body (4) of middle and lower part through hole and the collar that lifts at top, valve body middle part symmetry has steam vent, it is characterized in that: a circular hole is opened in the middle and upper part at valve body (4) center, thin cylinder spear shape valve (2) tip in the through hole down, the outstanding slightly greatly outer connected set ring (1) of round platform of afterbody, the horizontal air intake passage (3) of opening a logical center hole of valve body top one side.