CN2207779Y

CN2207779Y - Safety cover of pressure cooker

Info

Publication number: CN2207779Y
Application number: CN 94245216
Authority: CN
Inventors: 黄墩清; 张田福; 蒋先华
Original assignee: SUBO'ER CO Ltd ZHEJIANG
Current assignee: SUBO'ER CO Ltd ZHEJIANG
Priority date: 1994-11-11
Filing date: 1994-11-11
Publication date: 1995-09-20
Anticipated expiration: 2004-11-11

Abstract

The utility model belongs to a pressure cooker lid used in a kitchen. The position on the edge of the cooker lid corresponding to a sealing rubber ring is provided with a bar-shaped slot; the position on the surface of the lid corresponding to the middle of the bar-shaped slot and the position of the sealing rubber ring is provided with a pressure relief hole. When the cooker lid is used, the gas in the cooker exceeds the rated air pressure, and the sealing rubber ring on the notch of the bar-shaped is pushed out of the lid; at the moment, the pressure relief hole is communicated with the inside of the cooker, and the pressure is relieved. The utility model, which has the advantages of simple structure, convenient use, low cost, etc., can be matched with a common pressure cooker for use.

Description

Safety cover of pressure cooker

The utility model belongs to household utensils, particularly a kind of culinary pressure cooker lid.

Existing pressure cooker is safe in utilization in order to guarantee it, usually all on pressure cooker lid, load onto safety valve or fuse sheet, when the pressure in the pot body surpassed specified air pressure (200KPa), fuse sheet or safety valve can discharge gas in the pot automatically, thereby had guaranteed the safety that pressure cooker uses.But production process is cumbersome, cost height, complex structure.

It is a kind of simple in structure, easy to use that the purpose of the utility model is to provide, and do not need to increase on pot cover the pressure cooker lid of add-on security device.

The technical solution of the utility model is achieved in that it has at least one strip groove with the O-ring seal corresponding position on usual pressure pot pot cover lid limit, have a relief hole with the O-ring seal corresponding position on the capping in the middle of the relative strip groove, O-ring seal is from then on the bar-shaped trough outside the ejecting cap.

When the utility model is assemblied in when using on the pressure cooker, if a pot internal gas pressure rises to specified air pressure, the pressure of pot body will eject the O-ring seal on the strip groove.At this moment, relief hole communicates with the pot body, and overvoltage gas is discharged, so guaranteed the safety that pressure cooker uses.

Owing on pot cover, do not increase the add-on security device, thus have simple in structure, at the bottom of the cost, advantage such as easy to use.

Below in conjunction with embodiment shown in the drawings the utility model is further described:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the A view of Fig. 1.

Fig. 3 is that the utility model is engaged in the structural representation on the pressure cooker.

State diagram when Fig. 4 is Fig. 3 overvoltage.

Fig. 5 is the vertical view of Fig. 4.

Referring to Fig. 1, Fig. 2, Fig. 3, pressure cooker safety head 4 has a strip groove 2 on the contiguous lid limit of covering between the tooth 1, corresponding with O-ring seal 5 positions, its width is slightly larger than O-ring seal 5 rib hem width degree, and from then on O-ring seal 5 can be ejected outside the pot cover 4 on the bar-shaped trough 2 by the pot internal gas pressure.

Have relief hole 3 with corresponding position, O-ring seal 5 position on the relative cappings in the middle of strip groove 2, when gas exceeded specified air pressure in the pot, the O-ring seal 5 on strip groove 2 notches was ejected pot cover 4, this moment relief hole 3 with pot in communicate, see Fig. 4, Fig. 5.

Strip groove 2 can be one on the lid limit, also can be several that are symmetrically distributed, and relief hole 3 quantity are corresponding with it.Strip groove 2 long 15mm shown in the present embodiment, wide 5mm.

Claims

A kind of pressure cooker safety head, it is characterized in that: go up on the lid limit (1) of pot cover (4) and O-ring seal (5) corresponding position has a strip groove (2) at least, O-ring seal (5) can stretch out from above-mentioned strip groove (2), has relief hole (3) with O-ring seal (5) corresponding position, position on the capping in the middle of the strip groove (2) relatively.