CN1143486A - Explosion-proof safety pressure cooker - Google Patents

Abstract

A high-safety anti-explosion pressure cooker has a cover with anti-explosion plug and safety valve composed of spring, rubber valve core and metal valve core, an upper handle with push plate and slide block containing push arm and spreader spring, and a lower handle with press cover, spreader spring and push rod. If upper and lower handles are not matched into position, the pressure in cooker will not raise. When pressure in cooker is beyond 5 KPa, its cover can not be opened. When the pressure reaches 220+/- 20 kPa, a large-flow leakage takes place for high safety.

Description

Explosion-proof safety pressure cooker

The present invention relates to a kind of domestic cookers, especially a kind of pressure cooker.

At present, pressure cooker has become huge numbers of families' daily necessities, but the pressure cooker phenomenon is a kind of potential threat to people's normal life.Consumers in general appeal that strongly pressure cooker manufacturer produces the safe pressure cooker of many insurances, explosion-proof type.Country has issued the GB13623-92 compulsory standard at the use problem of pressure cooker.Can really not realize many insurances but have as yet on the market so far, the particularly pressure cooker of explosion prevention function sale.

The objective of the invention is to overcome the defective of existing pressure cooker explosion-proof security difference, provide a kind of and fasten when putting in place when upper handle and lower handle, when promptly pot cover was not built, pot inner pressure was not held on not understanding; And when pot inner pressure when 5kpa is above, pot cover can't be opened; Malfunctioning when pressure limiting valve with safety, when pot inner pressure is elevated to 220 ± 20kpa, can realize big flow pressure release insurance, guarantee the explosion-proof safety pressure cooker that pressure cooker can quick-fried pot.

Task of the present invention realizes in the following manner: this explosion-proof safety pressure cooker, comprise pot cover, pressure limiting valve, upper handle, lower handle and pot body, between upper handle and lower handle, be provided with explosion-proof self-locking mechanism, pot cover is provided with I-shaped silica gel explosion-proof plug and safety valve, be provided with spring and rubber spool in the valve body, be provided with metal spool moving up and down in the rubber spool, be set with clamp nut on the valve body, sealing ring and sealing nut, but be provided with the push pedal of parallel slip in the upper handle, push pedal is fixed on the slide block, be provided with in the slide block and push away handle and stage clip, be provided with gland in the lower handle, stage clip and push rod.

Explosion-proof safety pressure cooker of the present invention, when pot cover upper handle and lower handle do not fasten when putting in place, pot inner pressure can not rise when promptly pot cover was built, and can guarantee to close the security of lid; When pressure (greater than 5kpa) was arranged in the pot, pot cover can't be opened, and can guarantee the security of uncapping, and can not hindered by hot cold perm in the pot because of uncapping by force; Malfunctioning when pressure limiting valve and safety valve, when pot inner pressure was increased to 220 ± 20kpa, explosion-proof plug just can be gone out automatically, and big flow pressure release insurance can guarantee that pressure cooker can quick-fried pot.

Type of the present invention has the following advantages: 1, the handle cover closing and opening safety device adopts the all-plastic side-push, meets people's physiologic habit more, and is cheap, easy to use laborsaving, be difficult for being damaged by bump, and handle is positioned at the mechanism center, and equalising torque can be more laborsaving.2, adopt the silica gel type explosion-proof plug, adopt macropore to break through the pressure release mode, can avoid the hole float to let out and produce the food jet phenomenon slowly.3, owing to adopted spring safety valve, this safety valve is twice plane of constraint form, when pot inner pressure reaches 150kpa, a plane of constraint pressurized and lift air exhaust pool and press produces second plane of constraint after lifting, and makes valve continue exhaust, when pot internal drop during to 90kpa, again closed, keep service pressure in the pot, changed the spring-like valve of plane of constraint for once, instantaneous exhaust, make pot inner pressure too high, produce dangerous defects, 4, safety valve adopts metal structure, long service life, and adopt easily detachable screw nut fit sealing mode, be easy to clean, can not produce choking phenomenon, safe and reliable.

Concrete structure of the present invention is provided by drawings and Examples.

Fig. 1 is a contour structures schematic diagram of the present invention;

Fig. 2 is safe self-locking of the present invention mechanism cutaway view;

Fig. 3 is the structural representation of safety valve 8 among the present invention;

Fig. 4 is the vertical view of upper handle 4;

Fig. 5 is the vertical view of lower handle 6.

Below drawings and Examples are described in more detail invention.

Embodiment:

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, this explosion-proof safety pressure cooker comprises pot body 21 and pot cover 1, pot cover 1 is provided with I-shaped silica gel explosion-proof plug 2, pressure limiting valve 3, safety valve 8 and upper handle 4, be provided with spring 19 and rubber spool 29 in the valve body 16 of safety valve 8, be provided with metal spool 7 moving up and down in the rubber spool 20, be set with clamp nut 17 on the valve body 16, sealing ring 15 and sealing nut 18, but be provided with the push pedal 9 of parallel slip in the upper handle 4, push pedal 9 is fixed on the slide block 10, be provided with in the slide block 10 and push away handle 5 and stage clip 12, be provided with gland 13 in the lower handle 6, stage clip 14 and push rod 11.

Operation principle of the present invention is as follows: when pressure cooker is in normal operating condition, upper handle 4 and lower handle 6 overlap, metal spool 7 is by the above pressure jack-up of 5kpa in the pot, cut off in the pot and extraneous passage, the interior pressure of pressure cooker this moment continues to rise, when pot inner pressure rises to 150kpa ± 20kpa, a planar compression jack-up of rubber spool 20, exhaust pressure relief, two secondary flats of the rubber spool 20 that and then is lifted continue to make exhaust step-down rapidly in the pot, when pot inner pressure is reduced to 90kpa, reset again, guarantee normal pressure in the pot.

In the normal use of pressure cooker, do not fasten when putting in place as the lower handle 6 of the upper handle 4 of pot cover and pot body, push pedal 9 is the reach of the guide groove in upper handle under the effect of slide block 10, pushes down the spool 7 of safety valve 8 all the time, makes pressure cooker pass through to close the security of lid.When pressure (greater than 5kpa) is arranged in the pot, spool 7 is by vapour pressure jack-up in the pot, and block push pedal 9, slide block 10 lower ends that drive push pedal 9 motions are stuck in the stopper slot 21 of lower handle 6, this moment, pot cover can't be opened, thereby guaranteed the security of uncapping, can not cause a pot interior hot cold perm to be hurted sb.'s feelings because of uncapping by force.

When pressure limiting valve and safety valve 8 were all malfunctioning, pot inner pressure constantly raise, and when pressure was raised to 220 ± kpa, explosion-proof plug 2 can be gone out automatically, and big flow pressure release insurance guarantees that pressure cooker can quick-fried pot.

Claims (1)

1, a kind of explosion-proof safety pressure cooker, comprise pot cover (1), pressure limiting valve (3), upper handle (4), lower handle (6) and pot body (21), between upper handle (4) and lower handle (6), be provided with explosion-proof self-locking mechanism, it is characterized in that: pot cover (1) is provided with I-shaped silica gel explosion-proof plug (2) and safety valve (8), be provided with metal spool moving up and down (7) in the valve body (16), be set with clamp nut (17) sealing ring (15) and sealing nut (18) on the valve body (16), upper handle (4) but in be provided with the push pedal (9) of parallel slip, push pedal (9) is fixed on the slide block (10), be provided with in the slide block (10) and push away handle (5) and stage clip (12), be provided with gland (13) in the lower handle (6), stage clip (14) and push rod (11).

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