CN2299561Y - Safety pressure cooker - Google Patents

Abstract

The utility model relates to a safety device of a pressure cooker. The purpose is that when high atmospheric pressure still exists in the cooker, a cooker cover is locked. Thus, scald accidents can be prevented. The utility model is characterized in that a through hole is arranged in the overlapped part of a cover handle, a slide plate and a cover top. An ejector rod can move up and down in the through hole. The block tongue end of a slide rod, which is inserted into and is fixed with the vertical face of the slide plate can extend into a tongue hole on a cover side. The end of the slide rod is sheathed with a spring and is arranged in the cover handle. When the high atmospheric pressure still exists in the cooker, the ejector rod is penetrated in the slide plate hole for locking the slide rod. A block tongue is stopped by cooker teeth because the block tongue can not be retracted. Thus, the cooker cover can not be unscrewed. Thereby, the safety performance of the pressure cooker can be notably enhanced.

Description

Safe pressure cooker

The utility model belongs to kitchen appliance, particularly the safety device of pressure cooker cover.

Pressure cooker has entered huge numbers of families with energy-conservation, the quick advantage of its uniqueness, and pressure limiting valve and fuse device are housed on the general pressure cooker lid, to guarantee that pot inner pressure is in permissible value.Yet open pot cover when still taking place often still elevated pressures to be arranged in the pot in the daily life, boil the liquid splash in the pot and cause the scald accident.For preventing this phenomenon, existing multiple technologies scheme in the autocratic document of China, wherein the patent No. is that 94206278.7 " pressure cooker use safeties " have been introduced on a kind of lid handle a push pedal is arranged, the safety pole of push pedal is stuck in the C type pit of panhandle, have only safety pole is pushed into the safeties that C type indentation, there pot cover just can be outwarded winding, this device need increase by one pair of rushing board mechanism, the assembling, the maintenance complicated, not very convenient during use yet.

The purpose of this utility model provides a kind of as long as the safe pressure cooker that pot cover just can not be outwarded winding during still dangerous air pressure in the pot also need not other control when uncapping.

Design philosophy of the present utility model is that utilizing stretches can be ended the pot body by the retaining tongue realization pot cover of pot inner pressure control or move relatively.Its concrete structure is: safe pressure cooker, form by pot body and pot cover, the breather pipe and the flame-arrester vent plug (being equivalent to the fuse device on the old product) of pressure limiting valve are housed on the pot cover, the overlapping part of lid handle and caping has through hole, the lower end has the push rod of diaphragm seal can be up and down therein, it is characterized in that covering the horizontal ends of going back plug-in mounting right angle slide plate between the overlapping part of handle and caping, have the circular hole relative on the end face with above-mentioned through hole, intert fixing top end of sliding rod (being sliding-tongue) with the slide plate vertical end and can stretch into the tongue hole of pot cover sidewall, the end of slide bar is with spring.

The above-mentioned through hole of opening on pot cover is equipped with tip-lever support, and the bolt shape push rod can not fallen by the tip-lever support support.

Position, upper edge, tongue hole on the above-mentioned pot cover sidewall is relative with pot plane, body upper edge behind the loam cake, also promptly keeps off tongue and pot tooth at the same level height.

By pressure cooker provided by the utility model, when still having than hyperbar in the pot, push rod is subjected to push up atmospherically and is penetrated in the circular hole of slide plate horizontal ends by the diaphragm seal of its lower end, thus the locking slide bar, and the retaining tongue is stopped that by the pot tooth pot cover can not be outwarded winding; After the pot internal gas pressure dropped to safety value, push rod fell after rise, turn pot cover at this moment, and the retaining tongue is compressed by the pot tooth and can open pot cover, has improved security, also need not additional move when uncapping, and in addition, its structure is also simplified relatively.

Be described further below in conjunction with drawings and Examples.

In the accompanying drawing, Fig. 1 is the utility model structure chart, and Fig. 2 is the pot cover sidewall schematic diagram that engages with the lid handle, and Fig. 3 is the left view of Fig. 1 middle cover handle, and Fig. 4 is slide plate and Slide bar structure figure, and Fig. 5 is the upward view of Fig. 4.

From accompanying drawing as can be seen, pot cover 2 is equipped with flame-arrester vent plug 1, pressure limiting valve 4, breather pipe 3, establish a circular hole newly with respect to common pot cover, this circular hole is installed a tip-lever support 9, place screw shaped cylinder ejector rod 6 in the seat, the nested circular rubber gasket 5 in its lower end, the sealing sheet is close to tip-lever support when pushing up on the push rod 8, to guarantee the sealing of pot.The front end face of lid handle 13 has the circular hole 8 that communicates with tip-lever support 9, can stretch into for push rod.Lid handle and pot cover sidewall junction have sliding rod hole 20, are shaped on step in the hole, play the spring base effect.Slide plate 10 curves the right angle, and its horizontal plane has circular hole 7, after the installation this slide plate between lid handle front end face and pot cover top, circular hole 7 and tip-lever support 9, circular hole 8 over against.The vertical plane perforate of slide plate is also fixedlyed connected with the slide bar 14 that inserts, slide bar 14 ends are with helical spring 15, the slide bar end is stretched in the sliding rod hole 20 together with spring 15, screw in tegmental wall circular hole 17 and the screwed hole 19 that covers handle with screw 12, connection cover 2, handle 13, the retaining tongue promptly enters the tongue hole 18 on the tegmental wall.From horizontal direction, the position of retaining tongue is just in time corresponding with the pot tooth, and pot edge sealing ring 11 is close in the upper surface of retaining tongue.So, as long as also have certain high air pressure in the pot body 16, wear slide hole 7 on the push rod 6, slide bar 14 is interlocked, and the retaining tongue can't be withdrawn and pot cover is locked; Have only after the pot internal gas pressure drops to permissible value, push rod 6 falls to leaving circular hole 7 because of the gravity effect, and during the turn pot cover, the extruding force of pot tooth makes the retaining tongue withdraw together with slide plate, and pot cover is unblanked.

Claims (3)

1, a kind of safe pressure cooker, form by pot cover (2) and pot body (16), pot cover (2) is equipped with the breather pipe (3) and the flame-arrester vent plug (1) of pressure limiting valve, lid handle (13) has through hole with the overlapping part of caping, the lower end has the push rod (6) of diaphragm seal (5) can be up and down therein, its feature is in the dried horizontal ends of going back plug-in mounting right angle slide plate (10) between the overlapping part of handle (13) and caping (2) of covering, have the circular hole (7) relative on the end face with above-mentioned through hole, intert the top of fixing slide bar (14) with slide plate (10) vertical end and can stretch into the tongue hole (18) of pot cover sidewall, the end of slide bar (14) is with spring (15).

2, safe pressure cooker as claimed in claim 1 is characterized in that the through hole on the above-mentioned pot cover is installed tip-lever support (9), is positioned at wherein bolt shape push rod (6) with support.

3, safe pressure cooker as claimed in claim 1 is characterized in that upper edge, tongue hole (18) is relative with the bead plane of pot body (10).

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