CN87205792U

CN87205792U - Press-tight seal for high pressure cooking pot

Info

Publication number: CN87205792U
Application number: CN 87205792
Authority: CN
Inventors: 俞启元
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-03-30
Filing date: 1987-03-30
Publication date: 1988-07-13

Abstract

The utility model relates to a locking and sealing device of a pressure cooker, which is characterized in that the locking and sealing device is provided with two inserted rings. Each inserted ring is provided with a triangular groove and a spiral convex table. The mouths of a cooker body and a cooker lid are provided with convex ribs which have the same shape with the triangular grooves on the inserted rings, and the convex ribs make the cooker body and the cooker lid tightly matched with the inserted rings. The two inserted rings buckled with each other through the spiral convex tables are matched with a sealing ring to lock and seal the pressure cooker. The utility model has the advantages of cost cutting, raw material saving, thermal efficiency increasing, good safety performance, etc. The utility model is applicable to pressure cookers and electric pressure cookers.

Description

Press-tight seal for high pressure cooking pot

The utility model relates to a kind of lock sealing device of pressure cooker.

Existing pressure cooker, be to fasten mutually by two convex edges of pot cover with the pot body, the compound rubber sealing ring is locked, is sealed, and the operating pressure of pressure cooker is by the intensity decision of two convex edges, and therefore two convex edges must be done thicklyer, reason owing to the technology manufacturing, cause whole pressure cooker all to need to make with thicker material, pot body, pot cover are except that the fastening part, convex edge like this, and the thickness of remainder its intensity head and shoulders above needs, cause raw-material waste, heat-conducting effect is also relatively poor thereupon; In addition, the fastening because two convex edges all are the level of state exists as air pressure is arranged in the pot, and when uncapping, pot cover can be raised suddenly, does not note slightly injuring the person.

The purpose of this utility model will provide a kind of pressure cooker that can make to save material exactly, and safe and reliable pressure cooker lock sealing device.

The utility model is achieved in that at pressure cooker body, the pot cover oral area is inlayed an edge circle respectively, have triangular groove and spiral boss on the edge circle, pot body and pot cover oral area have the convex tendon that encloses the triangular groove similar shape that has with edge, make pot body and Xiang Quan, pot cover and Xiang Quan closely cooperate, two edge circles on pot body and the pot cover fasten by spiral boss, the fitted seal circle makes the pressure cooker lock sealing, like this, the operating pressure of pressure cooker is just by edge circle and pot body, the intensity of the bond strength of pot cover and edge circle itself determines, thereby make whole pressure cooker reduce cost, improved the thermal efficiency with thin material manufacturing, in having in the pot, press when existing, because two edge circles fasten form for spiral, when uncapping, pot cover and pot body are progressively thrown off, avoid the phenomenon of raising suddenly, improved the security of products energy.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

Fig. 1, pressure cooker lock sealing device assembling schematic diagram.

1---pot cover edge circle, 2---pot body edge circle, 3---pot cover, 4---the pot body, 5---groove, 6---convex tendon, 7---sealing ring

Fig. 2, edge circle schematic diagram.

8---spiral boss.

Fig. 3, electric pressure lock sealing device assembling schematic diagram.

9---shell edge circle, 10---pot cover edge circle, 11---groove, 12---convex tendon, 13---spiral boss, 14---shell, 15---pot cover, 16---sealing ring.

Stainless steel pressure cooking-vessel pot cover (3), pot body (4) are stretched as tubular, and die casting pot cover edge circle (1) and pot body edge circle (2), make it to have a triangular groove (5) and lead angle and be 3 °～5 ° spiral boss (8), see Fig. 1, Fig. 2, for satisfying the requirement of strength of pot cover edge circle (1) and pot body edge circle (2), the selection of material ZL104.When pot body edge encloses (2) behind cover die oral area location, again pot body (4) is inserted in cover die, its oral area one place extruding is for inlaying the convex tendon (6) that encloses triangular groove (5) similar shape of being opened on (2) with the pot body, pot body edge circle (2) and pot body (4) are closely cooperated, in like manner, pot cover edge circle (1) and pot cover (3) are closely cooperated.

The lock sealing device of this pressure cooker is applicable to pressure cooker and electric pressure. Existing electric cooker, only needing increases a small amount of fund, just can change system into electric pressure, sees Fig. 3, and its using method is the same with existing pressure cooker.

Claims

1, the lock sealing device of pressure cooker, the oral area that it is characterized in that pot body (4), the pot cover (3) of pressure cooker is inlayed one pot of body edge circle (2) and pot cover edge circle (1) respectively, and pot body edge circle (2) and pot cover are inlayed to enclose on (1) and all had a triangular groove (5) and spiral boss (8).

2, according to the pressure cooker lock sealing device of claim 1, the oral area that it is characterized in that a pot body (4) and pot cover (3) has the convex tendon (6) that encloses triangular groove (5) similar shape that has with edge, and a pot body (4) and pot body edge circle (2), pot cover (3) and pot cover edge circle (1) are closely cooperated.

3, according to the pressure cooker lock sealing device of claim 1 and 2, it is characterized in that pot body edge circle (2) and pot cover edge circle (1) fasten by spiral boss (8), fitted seal circle (7) makes the pressure cooker lock sealing.