CN2373015Y - Rotating covering type safety pressure cooker - Google Patents

Abstract

The utility model belongs to kitchen ware, particularly the improvement of cooker teeth and lid teeth of a rotating covering type pressure cooker, which aims to realize the assumption of anti-explosion pressure cookers. The utility model is a pressure cooker which is composed of a cooker lid, a cooker body and a sealing ring. The utility model is characterized in that the lid teeth bend upwards and the cooker teeth bend downwards, and the lid teeth and the cooker teeth form a hook closing state when closed together. The utility model can still maintain hook connection when the inner of the pressure cooker has abnormal overpressure and the lid teeth and the cooker teeth generate larger deformation, and the seal of the sealing ring is destroyed at the same time.

Description

A kind of revolving type safe pressure cooker

The utility model belongs to kitchen appliance, particularly the improvement of revolving type pressure cooker cover and pot tooth.

Pressure cooker has entered huge numbers of families with energy-conservation, the advantage such as save time of its uniqueness.Pressure limiting valve and safety valve are housed on the general pressure cooker lid, and pressure limiting valve is determined operating pressure, and safety valve is determined safe pressure.Its lid tooth and pot tooth all are horizontals, by screwing, will cover tooth and snap in a pot tooth below, as shown in Figure 1.Yet in use still pressure limiting valve takes place often and the safety valve air flue is blocked, produce superpressure in the pot, lid tooth and pot tooth by near stretching be plastic deformation until lid, body quick-fried from, as shown in Figure 2, be commonly called as pressure cooker blast, thus the accident of causing casualties or to the damage of other article.

The purpose of this utility model provides and a kind ofly need not to increase new safety device and be in the superpressure state in pot, lid tooth and pot odontogenesis still can keep during than large deformation the state of hooking together, and can self-relieving pressure cooker.

Design philosophy of the present utility model is: in pot, produce improper press and cause covering tooth, the pot thread form becomes, and in the primary stage that quick-fried pot will take place, utilizes the deformation of pot tooth to destroy the sealing of sealing ring and radially pressure release automatically.Based on this thought, the design need not to increase in addition safety device, equally only form by pot cover, sealing ring, pot body, pressure limiting valve and safety valve are housed on the pot cover, difference is to cover upwards bending of tooth, the pot tooth is also done accordingly bending down mutually, thereby (when working) pot cover is the state of hooking together with a pot body when covering.

An advantage of the present utility model is: because a lid tooth and a pot tooth are made the crotch that matches, when abnormal condition lower cover tooth and pot odontogenesis still can keep the state of hooking together during than large deformation.And another the most significant being also advantageous in that is worked as in the process that pot tooth is generation deformation, the drift angle of its bending part jack-up that also gradually the sealing ring lower lip made progress, destroy the sealing of sealing ring and pot edge, pot interior superelevation air pressure is released from the pot edge anodontia, thereby realized really not quick-fried mechanism.

In the accompanying drawing, Fig. 1 is a conventional high-tension pot normal operating conditions schematic diagram, Fig. 2 is that the conventional high-tension pot is in improper superpressure and is about to quick-fried pot view, and Fig. 3 is the utility model normal operating conditions schematic diagram, and Fig. 4 is that the utility model is in improper superpressure view.

Be described further below in conjunction with Fig. 3, Fig. 4.

The make progress right angle bending of the edge of the lid tooth 4 of pot cover 1, the edge downward right angle bending of the pot tooth 5 of pot body 3 is the state of hooking together after both screw, and sealing ring 2 seals between pot edge and caping.When abnormal conditions occurring, blocked by food such as the pressure limiting valve air flue on the pot cover, pot inner pressure sharply rises to superpressure and makes and cover tooth 4 and deformation take place pot tooth 5, at this moment if the quick-fried pot of generation will overcome the twice resistance: the root that at first needs to cover tooth 4 and pot tooth 5 is near stretching, and there secondly also need have sufficiently high pressure will cover tooth to be approaching stretching with pot tooth edge crotch.And covering tooth and pot tooth quilt near before stretching, and the drift angle of the bending angle of pot tooth 5 will seal and push up on 2 lower lips, make it to produce slit 6 with the place, pot edge, and the super-pressure in pot can release from the pot edge anodontia, thereby has realized the not hope of quick-fried pressure cooker.

The utility model can adopt traditional aluminium to make, and when the superpressure phenomenon took place, lid tooth and pot tooth were plastic deformation, but as having avoided blast may cause great human casualty accident, the loss of pot is inappreciable.And if adopt the stainless steel material thin-wall construction, because thin-wall stainless steel has certain elasticity, when generation superpressure phenomenon, lid tooth and pot tooth are strain, and product still can restore to the original state and can continue to use after fault was got rid of.

Claims (1)

1. A kind of revolving type safe pressure cooker is made up of pot cover (1), sealing ring (2), pot body (3), and pot cover is equipped with pressure limiting valve and safety valve on (1), it is characterized in that covering upwards bending of tooth (4), and the downward corresponding bending of pot tooth (5) is the state of hooking together when both cover.

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