CN2311999Y - Multi-insurance pressure cooker - Google Patents

Abstract

The utility model relates to a multi-insurance pressure cooker. The utility model is characterized in that an air pressure interlocking apparatus is arranged among a cooker lid, an upper handle and a lower handle. The air pressure interlocking apparatus comprises an indicating valve, a push plate, a connecting piece, a slide key, a torsion spring, an air release valve, etc. Because the utility model adopts an advanced structure with an air pressure type interlocking apparatus for safely opening and closing the cooker lid, the cooker lid can be opened only in safety air pressure. Accidents caused by opening the cooker lid when the utility model still has residual steam are avoided. Meanwhile, the air pressure interlocking apparatus with the structure has simple and reliable structure, convenient operation and installation and long service life, which is difficult to fail because of abrasion.

Description

A kind of Pressure cooker with multiple safety functions

The utility model relates to a kind of Pressure cooker with multiple safety functions, belongs to the improvement of pressure cooker safety locking motion.

Existing pressure cooker is generally by a pot body is arranged, pot cover, pressure limiting valve, easing valve, the overflow valve upper handle, compositions such as lower handle, this pressure cooker is because pressure limiting valve, easing valve, in use there is the valve body clogging in overflow valve, the interior gas of pot does not fully drain when uncapping, thereby causing steam to be easy to make to have dashed pot cover pounds the accident of hurting sb.'s feelings or scalding people's one class, China's utility model patent (patent No. 94206278) discloses a kind of cover closing and opening safety device for pressure cooker, it is increasing a self-locking mechanism between the lower handle on the existing pressure cooker, this mechanism is by safety valve on the pot cover and the push pedal that is contained on the upper handle, safety pole, spring and push rod are formed, though pot cover was not opened and pot cover covers the function that tight pot inner pressure can not raise when the pressure cooker of this structure can guarantee that pot power has the residual vapor of certain pressure, but it can not fully drain pot power residual vapor and effectively show in the pot and remain residual vapor, and the self-locking mechanism of this structure causes installation in structure because of valve rod top appearance and size must match with lockhole simultaneously, cause disabler owing to wear and tear easily in the inconvenience of operation and the use.

The purpose of this utility model provide a kind of have can effectively show take the dish out of the pot in the residual vapor pressure condition, can fully drain a pot interior residual vapor again, simple in structure, reliable Pressure cooker with multiple safety functions.

The utility model comprises a pot body, pot cover, pressure limiting valve, upper handle, lower handle etc., pressure limiting valve is arranged on the pot cover, upper handle and pot cover fixedly fuse, lower handle fixedly fuses with the pot body, it is characterized in that above-mentioned pot cover, be provided with the air pressure interlock between upper handle and the lower handle, this air pressure interlock includes indicator valve, push pedal, connector, feather key, torque spring, wherein indicator valve is by valve rod, valve pocket, bonnet is formed, be arranged between pot cover and upper handle and the push pedal, valve rod, bonnet is arranged on the limited mouth position corresponding to push pedal, valve pocket is connected with pot cover by sealing ring, push pedal, connector, feather key connects successively and is installed on the upper handle, feather key is made up of horizontal slide plate and vertical key pin, one side of slide plate is provided with the torque spring that can rotate around the axis, and torque spring one end withstands the upper handle intracavity sidewall, and the other end withstands slide plate, the position of corresponding key pin is provided with bayonet socket on the lower handle, and the clamping of key pin and bayonet socket makes, lower handle is connected together.

Above-mentioned air pressure interlock also includes gas bleeder valve, and this gas bleeder valve is made up of valve body, compression spring, and compression spring is contained in the valve body, and the valve body tail end is set on the key pin, and its front end is set on the sidewall of pot cover.

The utility model is owing to adopt the structure of the advanced chain cover closing and opening safety device of vapour-pressure type, it can effectively show the situation of the interior residual vapor pressure that takes the dish out of the pot by indicator valve, can fully drain a pot interior residual vapor again, only guaranteed that pot cover could be opened under safety air pressure, avoided in pot, also having residual vapor with regard to the strong accident of uncapping and being caused, the air pressure interlock of this structure is simple in structure simultaneously, reliably, install, easy to operate, be difficult for causing inefficacy because of wearing and tearing, long service life, and good looking appearance is generous, is family, one of the desirable ovenware in hotel.．

Describe structure of the present utility model and basic principle in detail below in conjunction with accompanying drawing:

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

Fig. 2 is the upper handle partial bottom view;

As shown in the figure, the utility model comprises a pot body (1), pot cover (2), pressure limiting valve (3), easing valve, overflow valve, upper handle (4), lower handle (5) and air pressure interlock (6), pot body (1), pot cover (2) is processed into aluminium sheet, good looking appearance is generous, be provided with the screens piece of evagination around pot body (1) top edge, pot cover (2) edge is provided with the indent screens piece that matches therewith, pot cover (2) also is provided with O-ring seal with the contacted position of pot body (1), time sealing is air tight to guarantee both clampings, pot body (1) is screwed with lower handle (5) and fuses, in pot body (1), lower handle (5) right opposite position also is provided with miniature lever (21), miniature lever (21) is fixed on pot body (1) with screw, lower handle (5), miniature lever (21), upper handle (4) all is to make with adiabatic phenolic resins.Upper handle (4) is fixedlyed connected with pot cover (2) and is integral, pressure limiting valve (3), easing valve, overflow valve distributes and is arranged on the pot cover (2), there is pore to communicate in the spool of pressure limiting valve (3) with air in the pot, when the pot internal gas pressure surpasses certain value, steam just can be emerged in the spool pore, air pressure interlock (6) is by indicator valve (7), push pedal (8) connector (9), feather key (10), torque spring (11), gas bleeder valve (18), form, wherein indicator valve (7) is arranged between pot cover (2) and the upper handle (4), it is by valve rod (12), valve pocket (13), bonnet (14) is formed, bonnet (14) is provided with above the valve rod (12), its top scribbles bright-colored and comes into plain view, valve rod (12), valve pocket (13) fuses by pin, valve rod (12) is arranged on the limited mouth position corresponding to push pedal 8, can control moving of push pedal (8).Push pedal (8), connector (9), feather key (10), torque spring (14) are mounted on the upper handle (4) successively, and push pedal (8) fuses by connector (11) and feather key (10).Feather key (10) is made up of horizontal slide plate (15) and vertical key pin (16), slide plate (15) one sides are provided with the torque spring (14) that can rotate around the axis, torque spring (14) one ends withstand upper handle (4) intracavity sidewall, the other end withstands slide plate (15) (as shown in Figure 2), the position that lower handle (5) is gone up corresponding key pin (16) is provided with bayonet socket (17), key pin (16) can be connected in this bayonet socket (17), and bayonet socket (17) makes upper and lower handle locking together with the clamping of key pin (16).Gas bleeder valve (18) is made up of valve body (19), compression spring (20), and compression spring (20) is contained in the valve body (19), and valve body (19) tail end is set on the key pin (16), and front end is set on the sidewall of pot cover (2) band indent screens piece position.

Operation principle of the present utility model is as follows: before pot is started working, with hand push pedal forward (8), close the lid back and decontrol push pedal, push pedal (8) resets through the effect of torque spring (11), the vertical key pin (16) of feather key (10) blocks with the bayonet socket (17) of lower handle, make, lower handle pins, pot cover this moment (2) is air tight by its rubber seal sealing with pot body (1), close not in place and when work as pot cover, indicator valve (7) can not rise and seal valve port, the pot inner vapor can be discharged continually from valve port, and the pot internal gas pressure can not raise a lot (generally can not surpass 5kPa), and this moment, pressure cooker can't effectively be worked.(during the heating kettle body) pot internal gas pressure is being heated and is being raise gradually in the process when pot is normally started working, the also corresponding rising of the boiling point of water, the valve pocket (13) of indicator valve (7), valve rod is by jack-up, indicator valve (7) is gone up bonnet (14) and is revealed, valve rod (12) raises and blocks the limited mouth of push pedal (8), push pedal (8) can not be pushed, also just can't open pot cover, when the pot internal gas pressure surpasses prescribed limit (operating air pressure 72kPa-88kPa), pressure limiting valve (3) is by jack-up, the part steam is discharged by the blast pipe of pressure limiting valve, make and keep certain air pressure and temperature in the pot, if the blast pipe of pressure limiting valve (3) is plugged, the pot inner vapor surpass in certain limit (safe air pressure is 112kPa-160kPa) easing valve or the overflow valve one will automatic vent to guarantee safety, when pot after hours, fully do not cool off and discharge as the pot inner vapor, air pressure does not drop to certain limit (generally should less than 3kPa), the valve pocket (13) of indicator valve (7), valve rod (12) can not fall, pot cover can be lockable and can't open, have only the pot of a working as internal gas pressure to drop to certain limit, the valve rod (12) of indicator valve (7) falls, withdraw from feather key (10) from bayonet socket (17) with hand push pedal forward (8) this moment, can be with turn upper handle (4), open pot cover, at this moment gas bleeder valve (18), valve body (19) backs down the sealing ring of pot cover in pot under compression spring (20) effect, guarantee that once more a pot interior residual vapor releases, guaranteed the safety of using.Decontrol push pedal after uncapping, push pedal resets under the torque spring effect, and the valve body (19) that drives gas bleeder valve (18) simultaneously resets backward, to guarantee that closing lid can normally carry out next time.

Claims (2)

1, a kind of Pressure cooker with multiple safety functions, it comprises a pot body (1), pot cover (2), pressure limiting valve (3), upper handle (4), lower handle (5) etc., pressure limiting valve (3) is arranged on the pot cover (2), upper handle (4) fixedly fuses with pot cover (2), lower handle (5) fixedly fuses with pot body (1), it is characterized in that above-mentioned pot cover (2), be provided with air pressure interlock (6) between upper handle (4) and the lower handle (5), this air pressure interlock (6) includes indicator valve (7), push pedal (8), connector (9), feather key (10), torque spring (11), wherein indicator valve (7) is by valve rod (12), valve pocket (13), bonnet (14) is formed, be arranged between pot cover (2) and upper handle (4) and the push pedal (8), valve rod (12), bonnet (14) is arranged on the limited mouth position corresponding to push pedal (8), valve pocket (13) is connected with pot cover (2) by sealing ring, push pedal (8), connector (9), feather key (10) connects successively and is installed on the upper handle (4), feather key (10) is made up of horizontal slide plate (15) and vertical key pin (16), one side of slide plate (15) is provided with the torque spring (11) that can rotate around the axis, torque spring (11) one ends withstand upper handle (4) intracavity sidewall, the other end withstands slide plate (15), the position that lower handle (5) is gone up corresponding key pin (16) is provided with bayonet socket (17), and key pin (16) makes with the clamping of bayonet socket (17), lower handle is connected together.

2, Pressure cooker with multiple safety functions according to claim 1, it is characterized in that above-mentioned air pressure interlock also includes gas bleeder valve (18), this gas bleeder valve (18) is made up of valve body (19), compression spring (20), compression spring (20) is contained in the valve body (19), valve body (19) tail end is set on the key pin (16), and its front end is set on pot cover (2) sidewall.

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