CN2251948Y

CN2251948Y - Pressure cooker safety automatic locking device

Info

Publication number: CN2251948Y
Application number: CN 96236662
Authority: CN
Inventors: 陈晓骥; 陈仁泉; 李湛明
Original assignee: GUANGDONG NANFANG HARDWARE GENERAL PLANT
Current assignee: GUANGDONG NANFANG HARDWARE GENERAL PLANT
Priority date: 1996-02-15
Filing date: 1996-02-15
Publication date: 1997-04-16
Anticipated expiration: 2006-02-15

Abstract

The utility model provides a pressure cooker safety automatic locking device. The utility model is characterized in that the utility model is composed of a positioning pin, an automatic locking sheet, a pin seat, and a stop pin, wherein, the positioning pin and the automatic locking sheet are arranged in an upper handle, and the pin seat and the stop pin are arranged in a cooker cover at the point corresponding to the pin seat and the stop pin; after the cooker cover and a cooker body are buckled, the stop pin is just aligned with a stop hole of the automatic locking sheet which is arranged on the pin seat, and the positioning pin connected with the automatic locking sheet is just inserted into a positioning hole of a cover buckling tooth of the cooker body under the action of a spring; when the pressure in a cooker rises, the stop pin is inserted into the stop hole of the automatic locking sheet to lock the cooker cover so that the cooker cover can not be opened by rotating, and consequently, an accident is avoided that food gushes when the cover is provided with pressure still remaining in the cooker. The device also has the advantages of simple structure, convenient and reliable operation, etc.

Description

The pressure cooker foolproof apparatus

The utility model belongs to the pressure ware safety device, and particularly a kind of pressure cooker foolproof apparatus is suitable for pressure cooker and adopts.

At present, pressure cooker is fast with its cooking food speed, easily advantages such as food is well-done are subjected to liking of people, progressively applied.Because pressure cooker is to cook under the operating pressure that exceeds normal pressure, in order to prevent to set off an explosion because of stopping up constant pressure valve, prior art has been done improvement, is provided with the overvoltage safeties and overheatedly melts disconnected device on pot cover, guaranteed safe in utilizationly, made the minimum generation of explosion accident.Yet, the accident that in use occurs often is after stopping working, when pot inner pressure is not reduced to normal pressure, because this moment, constant pressure valve did not have the gas ejection, the people is misread has not had pressure in the pot, if at this moment pot cover is opened, the food that still is in fluidized state will gush and cause casualty accident, the people that this accident pilosity is born in old man, child or is lacked in common sense, and prior art does not have the good precautionary measures as yet.

The purpose of this utility model is the problem at above-mentioned existence, and a kind of pressure cooker foolproof apparatus of uncapping safe of guaranteeing is provided.

Fig. 1 is the cutaway view of a kind of concrete structure of the utility model.

Fig. 2 is an A-A cutaway view among Fig. 1.

Task of the present utility model realizes by this way, as depicted in figs. 1 and 2, this foolproof apparatus is by being arranged at the alignment pin (8) in the upper handle (7) and forming from locking plate (6) and the key seat (3) and the latch (5) that are arranged on this place's pot cover (1), key seat (3) is anchored on the pot cover (1) with nut (2), and seal with sealing ring (14), latch (5) is socketed in the pin-and-hole of key seat (3), the centre bore that the guide rod of its lower end (13) passes key seat (3) bottom extends key seat (3) below, do not hold at guide rod (13) and also to be provided with a sealing ring (12), alignment pin (8) over against buckle closure tooth (11) radial support of pot body (10) in the through hole of pot cover (1) outer rim and upper handle (7), trisquare shape from locking plate (6) is anchored on alignment pin (8) between pot cover (1) outer rim and the upper handle (7) with its vertical section on, on the alignment pin (8) between locking plate (6) and the upper handle (7), also be provided with compression spring (9), place above the key seat (3) from locking plate (6) horizontal segment, but its front end has the stop hole (4) of a socket latch (5), after pot cover (1) and pot body (10) fasten, alignment pin (8) just in time is inserted on the positioning port of offering on a pot body (10) the buckle closure tooth (11) (16), just in time is in the top of latch (5) from the stop hole (4) of locking plate (6).

The utility model is work like this; When pressure cooker is cooked, along with pot inner pressure raises, latch (5) pressurized rises key seat (3) is sealed, and be inserted in the stop hole (4) of locking plate (6), at this moment, the positioning port (16) that alignment pin (8) tightly inserts in a pot body (10) buckle closure tooth (11) upward pins pot, people can't outward winding pot cover (1), played self-locking action, pot inner pressure is reduced near normal pressure until flame-out back, and latch (5) descends, disengaging is from the stop hole (4) of locking plate (6), people just can outward winding pot cover (1), thereby the accident of the food of having avoided gushing out when uncapping takes place, and have solved the problem that prior art exists effectively.In addition, this self-locking device also has simple in structure, makes easily convenient and reliable operation and do not influence advantage such as the normal use of pressure cooker.

When implementing, can on latch (5), open some logical vapour grooves (15), so that latch (5) can help steam discharge when descending, shorten in the pot and leak the pressure time, guarantee the safety of uncapping.

The utility model is suitable for pressure cooker to be adopted.

Claims

1, a kind of pressure cooker foolproof apparatus, it is characterized in that this self-locking device is by being arranged at the alignment pin (8) in the upper handle (7) and forming from locking plate (6) and the key seat (3) and the latch (5) that are arranged on this place's pot cover (1), key seat (3) is anchored on the pot cover (1) with nut (2), and seal with sealing ring (14), latch (5) is socketed in the pin-and-hole of key seat (3), the centre bore that the guide rod of its lower end (13) passes key seat (3) bottom extends key seat (3) below, do not hold at guide rod (13) and to be provided with a sealing ring (12), alignment pin (8) over against buckle closure tooth (11) radial support of pot body (10) in the through hole of pot cover (1) outer rim and upper handle (7), trisquare shape from locking plate (6) is anchored on alignment pin (8) between pot cover (1) outer rim and the upper handle (7) with its vertical section on, on the alignment pin (8) between locking plate (6) and the upper handle (7), also be provided with compression spring (9), place above the key seat (3) from locking plate (6) horizontal segment, but its front end has the stop hole (4) of a socket latch (5), after pot cover (1) and pot body (10) fasten, alignment pin (8) just in time is inserted on the positioning port of offering on a pot body (10) the buckle closure tooth (11) (16), just in time is in the top of latch (5) from the stop hole (4) of locking plate (6).

2, self-locking device according to claim 1 is characterized in that also having logical vapour groove (15) on latch (5).