CN2374112Y - Sealing ring lower potion wholly enclosed pressure cooker - Google Patents

Abstract

The utility model relates to a pressure cooker with a sealing ring lower with a completely sealed lower part. In order to avoid generating a gap between turn buckles on the lower part of the sealing ring, the turn buckles are moved outwards and are not arranged on the lower part of the sealing ring, and the gap between turn buckles can not exist on the lower part of the sealing ring. The sealing ring is arranged in a seal groove between a cooker lid and a cooker body without interspace on upper and lower parts, and only a circle of contact thin slot exists between the cooker lid and the cooker body; the lateral face position of the sealing ring is enabled to be tightly stuck on the slot by the lateral pressure of steam in the cooker for sealing the pressure cooker. Pressure in upper and lower directions can also make soft edges on the upper and the lower parts of the sealing ring separately tightly stuck on the cooker lid and the cooker body for playing an auxiliary sealing function, and the sealing effect of the utility model is far superior to that of traditional pressure cookers.

Description

The totally-enclosed pressure cooker in sealing ring bottom

The utility model is a kind of articles for daily use utensil, is mainly used in the various pressure cookers and uses.

The pot cover and the pot of tradition pressure cooker have six turn buckles that play the fastening effect between the body, and space, six places is arranged between six turn buckles because when covering, pot cover buckle the below of buckleing that will enter pot body, so must between detaining and detaining, leave the space of sufficient size.This space, six places that is to say that just in the bottom of sealing ring the sealing ring bottom and the contact position of pot body are not complete closed, has in the bottom of sealing ring six " vulnerables area of the stomach ".

When boosting in the pot, the pressure of steam has three directions to the effect of sealing ring in the pot: lateral pressure makes the hard-edge of sealing outer rim be adjacent to inboard, pot cover joint portion, and six spaces, six places of changeing between the button are then sealed in the bottom of hard-edge; Upper and lower to pressure make the soft limit on sealing ring top be close to pot cover respectively, make the soft limit, bottom of sealing ring be close to the upper limb of pot body.The comprehensive function of three directions makes sealing ring finish sealing function.

In the pressure of these three directions, what play main sealing function is to make soft limit, sealing ring bottom paste the downward pressure of pot body upper limb.And the best lateral pressure of sealing function is not fully utilized.The lateral pressure excellent sealing performance can obtain certainly from the pressure cooker that has a side direction safety vent at the pot cover seal groove that occurred in recent years: the side direction safety vent in that the seal groove place of pot cover opens several strips does not influence its sealing property.

The tradition pressure cooker fails to make full use of the sealing function of lateral pressure, pressure under it mainly relies on makes soft limit, sealing ring bottom be adjacent to a pot body upper limb and finishes sealing function, it also will have the hard-edge of adequate thickness by sealing ring simultaneously, and six " vulnerable area of the stomach " spaces blocking between the turn buckle strengthen sealing function.This sealing means has strict requirement to the thickness of sealing ring hard-edge, and is thick, and the pot cover lid does not advance, and handle is easily turned round mashed; Approached, envelope is the gap, six places between the turn buckle incessantly, easily gas leakage.Sealing ring is used of a specified duration, must wear out, and attenuation, seal failure is unavoidable, changes sealing ring and has become frequent thing.

Observe the situation of pressure pan gas, can find that gas is mostly from this six air gap leakage, improve the sealing property of pressure cooker, must consider to improve the structure of pot cover and pot body joint portion, promptly the contact component at sealing ring bottom and pot body adopts totally enclosed form, avoids the space between sealing ring bottom generation turn buckle.

Purpose of the present invention is intended at the existing bad deficiency of pressure cooker sealing property, and proposing a kind of sealing ring bottom can hermetic novel pressure cooker.

Pressure cooker of the present utility model is for fear of the space that produces in the sealing ring bottom between the turn buckle, and the design of employing is: turn buckle is moved outward, be not arranged on the bottom of sealing ring, like this, just do not had the space between the turn buckle in the bottom of sealing ring.

New design places sealing ring in the seal groove between pot cover and the pot body, and upper and lower equal tight only has a circle contact finedraw between pot cover and pot body, makes the sealing ring sideway stance be adjacent to this seam by the lateral pressure of steam in the pot, is sealed.Simultaneously, upper and lower to pressure also can make the soft limit in soft limit, sealing ring top and bottom be adjacent to respectively pot cover and the pot body, play the auxiliary seal effect, sealing effect is much better than traditional pressure cooker.The improved pressure pot all has annular groove on the top of pot body and the bottom of pot cover, and the sealing ring block therein.

Because top, bottom and the outside of sealing ring all are subjected to pot cover and the block of pot body, do not have big space, so sealing ring no longer needs wide, the extremely strict hard-edge of thickness requirement, and the width of sealing ring and thickness can suitably reduce.Because the improved pressure pot mainly makes sealing ring be adjacent to contact finedraw between pot cover and pot body by lateral pressure, sealed, therefore the requirement to sealing ring thickness does not have traditional pressure cooker strict like that, sealing ring is used of a specified duration, the gauge pin changes, also can not influence sealing effectiveness, this will improve the service life of sealing ring greatly.After the requirement reduction to sealing ring thickness, closing, opening of pot cover is also comparatively light, and the operating position of handle also can be better.

Since the change of structure and size, the fixed block of pot cover handle again riveting at pot cover sealing ring parts, but riveting is at position, gap that pot cover is buckled without spin.

In order to improve security performance, also can open the side direction safety vent of strip in the pot cover and the outside that contacts seam place sealing ring of pot body.In case pot inner pressure is excessive, the sealing ring side can be gone out in the hole, makes seal failure, protection pot body.

The utility model will be further described below in conjunction with accompanying drawing;

Fig. 1 is the utility model structure cutaway view;

Fig. 2 is the utility model pot body front view;

Fig. 3 is the utility model pot body vertical view;

Fig. 4 is the utility model pot cover front view;

Fig. 5 is the utility model pot cover vertical view.

As shown in the figure, the utility model comprises pot body 1 and pot cover 2 two parts, it is characterized in that a pot joint portion, body top 3 has annular groove 4, place sealing ring 5 in the groove 4, joint portion, pot cover bottom also has the annular groove 6 with groove 4 same diameter, and sealing ring 5 is placed in the upper and lower all void-free seal groove 9 that is made of pot body and pot cover groove.

And pot body 1 top turn buckle 7 places the outside of O-ring seal groove 4.Pot cover 2 bottom turn buckles 9 place the outside of O-ring seal groove 6, and the software heat proof material that sealing ring 5 does not have wide hard-edge for the outside is made.In order not influence sealing, also the rivet hole 8 of fixed handle is placed on the circumferential position that pot cover 2 buckles without spin.In order to ensure safety, have overvoltage pressure relief vent 10 in the side of sealing ring 5.

Claims (3)

1, the totally-enclosed pressure cooker in sealing ring bottom, comprise a pot body (1) and pot cover (2) two parts, it is characterized in that: pot joint portion, body top (3) has annular groove (4), place sealing ring (5) in the groove (4), joint portion, pot cover bottom also has the annular groove (6) with groove (4) same diameter, and sealing ring (5) is placed in the upper and lower all void-free seal groove (9) that is made of pot body and pot cover groove.

2, the totally-enclosed pressure cooker in sealing ring bottom as claimed in claim 1, it is characterized in that: pot body (1) top turn buckle (7) places the outside of O-ring seal groove (4), pot cover (2) bottom turn buckle places the outside of O-ring seal groove (6), and the software heat proof material that sealing ring (5) does not have wide hard-edge for the outside is made, in order not influence sealing, also the rivet hole (8) of fixed handle is placed on the circumferential position that pot cover (2) buckles without spin.

3, the totally-enclosed pressure cooker in sealing ring bottom as claimed in claim 1 is characterized in that: have overvoltage pressure relief vent (10) in the side of sealing ring (5).

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