CN2284025Y - Safety explosion-proof sealing ring of pressure cooker - Google Patents

Abstract

The utility model relates to a safe explosion-proof sealing ring for a pressure cooker. The utility model is characterized in that empty chambers are arranged at the inner part of the safety explosion-proof sealing ring at intervals, and mouths of the empty chambers open towards the inner side of the sealing ring. When the utility model is used and the pressure in a cooker exceeds a rated pressure, the exerted part with empty chambers can be destroyed to release the pressure, and the utility model achieves a safe explosion-proof function.

Description

Pressure cooker safety anti-explosive sealing ring

The utility model relates to a kind of sealing ring of blasting because of superpressure in the pressure cooker of preventing.

Pressure cooker in use, because of steam vent and safety valve obstruction, be the immediate cause that pressure cooker is blasted, existing pressure cooker is the various devices that are provided with that prevent the steam vent obstruction, but owing to have specific question such as improper use, and can not fundamentally solve the explosion-proof of pressure cooker.Existing seal ring of pressure cooker only seals, and does not but possess the superpressure explosion-proof.

The purpose of this utility model provides a kind of can the sealing, but again can be when superpressure pressure-relief explosion-proof, safing seal ring of pressure cooker.

Existing seal ring of pressure cooker inboard is open two up and down, and the outside is a solid, opens for making inboard sheet up and down, outside solid body tool certain width, wide as if cavity between sheet about the sealing ring inboard, the outside solid place is narrow, then sheet just is difficult to open about the sealing ring, does not have sealing function.Pressure cooker after getting togather lid, the interior edge of the lid that looks up from pot body below, narrow at pot along the place, expose in the sealing ring outside, because exposed portions serve is solid, and is subjected to stopping of edge in the pot cover, so can not destroy sealing ring during superpressure in the pot.The utility model design sealing ring has the empty chamber that is deep into the solid outside in the inboard, opening has certain intervals in the inboard between each empty chamber, not influence opening of sheet up and down, according to the sealing ring material difference, test determines that empty chamber reaches the thickness in the outside up and down, makes it destroyed after superpressure.When the interior superpressure of pot, the sealing ring exposed portions serve will be the position of free chamber to destroy from interior, lose sealing during use, and exhaust pressure relief reaches explosion-proof purpose.

Accompanying drawing is depicted as the utility model example, and accompanying drawing is the sectional view after the sealing ring bending, and (1) is cross section, place, empty chamber, and (2) are cross section, place, no empty chamber, and (3) are empty chamber.

Characteristics of the present utility model are to start with from the pressure cooker sealing, have fundamentally solved the pressure cooker Explosion-Proof, have eliminated the working pressure pot Maximum potential safety hazard, superpressure in pot, sealing ring is just destroyed to lose sealing, hot gas is drained downwards, be difficult for hurting sb.'s feelings, and simple in structure easily Produce.

Claims (2)

1, the explosive-proof sealed circle of a kind of pressure cooker is characterized in that having in the sealing ring being deep into the outside solid place and being opened on inboard empty chamber, and when in the pot during superpressure, the position, free chamber that is of exposing can be destroyed and pressure release.

2,, it is characterized in that between each empty chamber certain intervals being arranged according to claim 1 described sealing ring.

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