CN2274011Y - Safety device of gas-pressure automatically interlocking for pressure cooker - Google Patents

Abstract

The utility model relates to an automatic air pressure interlocking safety device for a pressure cooker, which is composed of valve rods, a valve body, a leather cup, a cooker cover, copper rivets, a slide block, a big resetting spring, a small resetting spring, a pull rod, an upper handle, a lower handle, etc. The device is mainly used for improving a handle structure of the pressure cooker. The indication valve rods are arranged in the cooker cover and the handle to effectively prevent accidents caused by misoperation that the cooker cover is forcedly opened when the cooker cover is not buckled in a proper position or the pressure cooker also has air pressure. The utility model has the characteristics of simple manufacturing technique, good sealing performance, compact structure, safe operation, etc.

Description

The automatic chain safety device of pressure cooker air pressure

The utility model belongs to the automatic chain safety device of a kind of pressure cooker air pressure.

At present, the automatic chain safety device of pressure cooker air pressure has various, for example patent 91210056.7 snap formula automatic blocking pressure cookers, patent 90211587.1 safe self-locking pressure cookers, patent 90208453.4 have pressure controlled electric pressure cooker of interlock or the like, though be to utilize interlock to control the interior air pressure of pressure cooker, safety has had assurance, but sometimes when pot cover buckle not in place or pot in air pressure is still arranged and strong uncapping when waiting mistake to make phenomenon, just can not prevent the accident generation.

The purpose of this utility model provides a kind ofly utilizes automatically chain effectively the preventing of air pressure in not in place or the pot air pressure to be arranged still and the strong automatic chain safety device of pressure cooker air pressure of maloperation such as uncapping and causing the accident when pot cover fastens.

The utility model is by valve rod, valve body, leather cup, pot cover, copper rivet, slide block, it is big to reset, little spring, on pull bar reaches, compositions such as lower handle, indication valve rod (1) is a hollow rod member with the level, respectively be drilled with 2 Φ, 2 side direction pores with following two ends, on, the fastening leather cup in bottom (3), be contained in the valve body (2), valve body (2) is a hollow cylinder, nut is fastened on the pot cover (4), make the guiding of indication valve rod (1), leather cup (3) is bowl-shape silicon rubber, and pull bar (8) is to strike out L shaped rod member with stainless steel, dashes Φ 14 holes with valve rod (1) aligned position, live with slide block (6) with copper rivet (5) and rivet in the middle part, also connect with the little spring that resets (7), slide block (6) is a trough-shaped body that is washed into corrosion resistant plate, and two protruding positions are arranged, can make pull bar (8) mobile guide effect, and under the effect of spring (7), reset; There is guide groove at upper handle (9) middle part, and top has positioning boss; Inclined-plane (a) and boss (b) are arranged at lower handle (10) top, top has positioning boss (c), upper handle (9) and lower handle (10) are used, and the bottom of pull bar (8) has the projection that protrudes in upper handle (9) lower surface to stretch into lower handle (10) inclined-plane (a) to locate.

The utility model is mainly used in the improvement of pressure cooker handle arrangement, the finger main valve stem is set in pot cover and handle, can prevent effectively when pot cover buckle not in place or the pot in air pressure is still arranged and the strong accident of uncapping maloperation and causing, production technology is simple, good airproof performance, compact conformation, handling safety, characteristics such as structure is attractive in appearance.

Description of drawings:

Fig. 1 is the utility model structural representation; Fig. 2 is the lower handle schematic top plan view.

Valve rod in the utility model (1), valve body (2), slide block (6), pull bar available steel such as (8) process, on, lower handle (9), (10) available phenoplasts compacting forms, and leather cup (3), copper rivet (5), the little spring (7) that resets all can be bought, assembling and setting as shown in Figure 1, valve body (2) is fixed tightly on the pot cover (4) with nut, valve rod (1) is contained in the interior two ends of valve body (2) and seals with leather cup (3), when pot cover (4) does not close or closes when not in place, Φ 14 holes and the valve rod of the pull bar (8) of top do not align, valve rod (1) can only rise 4-5mm, and the steam that produces in the pot is discharged from pore, to guarantee that pot inner pressure can not rise 5KPa; When operate as normal, valve rod (1) rises to the extreme higher position under gas pressure, has air pressure in the indication pot, can not uncap; And Φ 14 holes of passing pull bar (8) are locked with pull bar (8), and can not open; Valve rod (1) bottom dress leather cup (3) seals when operate as normal; When the pot internal gas pressure was lower than 2KPa, valve rod (1) fell by deadweight.When pot cover (4) was not incorporated into, pull bar (8) moved under spring (7) effect backward, pushes down valve rod (1) and can not play the normal position; Cover when collide in pull bar (8) and lower handle (10) projection inclined-plane when closing, pull bar (8) rotation certain angle, Φ 14 holes do not align with valve rod (1), and valve rod (1) also can not rise to the normal position; Be bonded in upper and lower handle (9), (10) when overlapping the position, pull bar (8) falls into the groove of lower handle (10) in the effect of big or small back-moving spring (7), and Φ 14 holes and valve rod (1) align, and valve rod (1) can normally rise; When uncapping, do not have air pressure in the pot, indication valve rod (1) when falling, pull bar (8) under the effect of the power of uncapping, pull bar (8) along lower handle (10) boss inclined-plane to the right, move backward, pot cover is opened smoothly; Air pressure is still arranged greater than 2KPa in the pot, valve rod (1) is not when falling, pull bar (8) can only move to the position of eliminating valve body (2) and valve rod (1), valve rod (1) and pull bar (8) gap (about 2.5mm) backward and locks at the effect lower edge of the power of uncapping lower handle (10) convex inclined plane, can not open, prevented effectively when pot cover (4) buckle not in place or pot in air pressure is still arranged and the strong accident of maloperation such as uncapping and causing, safe and reliable.When upper handle (9) and lower handle (10) are not set boss, on the pot tooth of pot cover and pot body a projection is arranged respectively, with mutual location, guarantee to close lid and put in place.

Claims (2)

1, the automatic chain safety device of a kind of pressure cooker air pressure, by valve rod, valve body, leather cup, pot cover, slide block, big little spring resets, on pull bar reaches, compositions such as lower handle, it is characterized in that: indication valve rod (1) is a hollow rod member with the level, on, following two ends respectively are drilled with 2 side direction pores, the fastening leather cups in top and the bottom (3), be contained in the valve body (2), valve body (2) is a hollow body, be fastened on the pot cover (4), make the guiding of indication valve rod (1), pull bar (8) strikes out L shaped rod member, dashes a hole with valve rod (1) aligned position, live with slide block (6) and rivet in the middle part, also connect with the big little spring (7) that resets, the trough-shaped body that slide block (6) is washed into has two protruding positions, guiding pull bar (8) moves, and resets under the effect of spring (7); Make pull bar when work, do scissors swing displacement; Inclined-plane (a) and boss (6) are arranged at lower handle (10) top, and there is guide groove at upper handle (9) middle part, and slide block (6) is in guide groove, and the bottom of pull bar (8) has the projection that protrudes in upper handle (9) lower surface to stretch into lower handle (10) place, inclined-plane.

2, according to the automatic chain safety device of the described pressure cooker air pressure of claim 1, it is characterized in that: positioning boss is arranged at upper handle (9) top, and positioning boss (0) is arranged at lower handle (10) top, closes the positioning boss of going up lower handle when lid puts in place and collides.

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