CN2318943Y - Pressure automatic locking safety device of pressure cooker - Google Patents

Abstract

The utility model relates to a pressure automatic locking safety device of a pressure cooker, which is composed of a handle, an indicating valve, a swing plate, a cam swing shaft, a fixing shaft, a fixing sleeve, a two-leaf resetting spring piece, etc. The utility model is characterized in that the indicating valve and a swing rod subassembly are respectively arranged in a cooker cover and an upper handle; accidents caused by misoperation that the cooker cover is forced to open when the cooker cover is not covered at a proper position or pressure still remains in the cooker can be effectively prevented under the interlinkage action between the indicating valve and the swing rod subassembly; the upper handle and the cooker cover are additionally provided with a reinforcing device, therefore, a handle loosening phenomenon caused by a pressure cooker repeatedly used can be effectively prevented, and the safety device can be ensured to run normally. The utility model has the advantages of reasonable design, simple manufacturing process, good sealability, compact structure, firmness and durability, safe and convenient 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 chain safety device of pressure cooker open and close cover has various, for example patent 96236662.5 pressure cooker foolproof apparatus, patent 96217723.5 pressure cooker cover closing/opening safety devices, patent 95246106.4 pressure cooker safety interlocks etc., all can utilize the air pressure in the interlock controlled pressure lock, safety has had assurance, but fasten not in place with pot cover sometimes or pot in also have air pressure and when the maloperation phenomenon such as uncapping by force, the accident that just can not prevent takes place, moreover, existing safety device is hand switch, and operation is convenient inadequately.In addition, general pressure cooker is fastened on upper handle on the pot cover with 2 countersunk head screws usually, and in use, screw is subjected to the influence of active force to occur becoming flexible, and causes upper handle to become flexible and offs normal, thereby influenced the regular event of automatic chain safety device.

The purpose of this utility model provides the automatic chain safety device of a kind of pressure cooker air pressure, be prone to the reason of accident at pressure cooker, ad hoc air pressure indicator valve, pot cover fastens the indication that all has not in place, informs that the user closes lid again, when remaining certain air pressure in the pot, be in latched position, pot cover can not draw away, and has overcome the insecurity of uncapping by force and bringing, and the accident that prevents takes place.This device is not with any hand switch, fully by handle control, has solved the problem of inconvenient operation, increases and strengthens screw, and handle is connected with pot cover top is fastening, has strengthened the steadiness of handle.

The utility model is made up of handle, indicator valve, oscillating deck, cam balance staff, fixed axis, fixed cover, the two leaf spring leafs that reset etc., indicator valve is made up of valve rod, valve body, fastening glue bowl, valve rod (1) is a hollow rod member with the level, two ends respectively are drilled with 2 holes (12) up and down, fastening glue bowl (3) is arranged at the bottom, valve rod (1) is contained in the valve body (2) into hollow body, and valve body (2) riveted joint is fastened on the pot cover (4); Oscillating deck (5) one ends and valve rod (1) aligned position have a semi-circular hole (14), and the other end has the rectangular groove of a flange (17), and there is a hole at the middle part, puts fixed cover (7), and countersunk head screw (8) is fixed on fixed cover (7) on the upper handle (9); Cam balance staff (6) is a hollow body, and there is a swing arm (19) upper end, and there is a boss (26) in the stage casing, and the lower end is provided with cam (13), and oscillating deck (5) is slidingly connected with swing arm (19), and boss (26) is slidingly connected with the two leaf spring leafs (10) that reset; Upper handle (9) middle part is provided with upper and lower balance staff hole (15,16), be contained in the hollow body of cam balance staff (6) by a fixed axis (20), expose two ends up and down, be enclosed within respectively in the upper and lower balance staff hole (15,16), T-shaped decorative mat (22) is pressed and is got lodged in the balance staff hole (15); One hole is arranged at reset two leaf spring leafs (10) bottom, is fixed on the upper handle (9) with half-round head screw (11), and the two leaf spring leafs (10) that reset are close on the boss (26); Upper handle (9) is not held with pot cover (4) relevant position, top and is respectively had a hole, attachment pad (24) upper end is enclosed within the hole of upper handle (9), screw (23) is fastening with strengthening, the lower end is fastening by valve seat (25) and pot cover, strengthen screw (23) and be hollow body with valve seat (25), valve seat is equipped with fuse sheet in (25).

The utility model mainly is the improvement to pressure cooker upper handle structure, indicator valve is set in pot cover and a fixing point is set in upper handle, utilize concavo-convex effect with pot body tooth, swing displacement with the cam balance staff, oscillating deck is given in transmission, oscillating deck is produced swing, reach folding lid purpose of safety, can prevent from effectively to remain air pressure in not in place or the pot and uncap maloperation by force and the accident that causes when pot cover fastens.Upper handle and pot cover top add the reinforcement screw, make pressure cooker not being prone to the loosening phenomenon of offing normal of handle in the mechanism repeatedly, have guaranteed the regular event of safety device effectively.It is reasonable in design, good airproof performance, and compact conformation, sturdy and durable, easy and safe to operate.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model state oscillating deck schematic diagram of uncapping;

Fig. 3 is that the utility model does not close lid or close lid oscillating deck schematic diagram when putting in place;

Fig. 4 is that the utility model closes lid oscillating deck schematic diagram when not in place.

Below in conjunction with accompanying drawing the utility model is elaborated:

As shown in Figure 1, indicator valve (18) is made up of valve rod, valve body, fastening glue bowl, valve rod (1) is the hollow rod member of a band step, two ends respectively are drilled with the pore (12) of 2 Φ 2mm up and down, the bottom has fastening glue bowl (3) to be contained in valve rod (1) lower end, seal, valve body (2) riveted joint is fastened on the pot cover (4).Oscillating deck (5) one ends and valve rod (1) aligned position mutually dash the semi-circular hole (14) that a Φ 13mm is arranged, the other end dashes a rectangular groove of 6 * 15mm flange (17), the middle part dashes Φ 9 holes, put fixed cover (7), and can swing, with countersunk head screw (8) fixed cover (7) is fixed on the upper handle (9).Cam balance staff (6) is a hollow body, there is a swing arm (19) upper end, there is boss (26) in the stage casing, the lower end is provided with cam (13) oscillating deck (5) and is slidingly connected with swing arm (19), boss (26) is slidingly connected with the two leaf spring leafs (10) that reset, and cam (13) can swing oscillating deck (5) generation of connection with the displacement that swings back and forth of pot body tooth platform.Upper handle (9) middle part is provided with upper and lower balance staff hole (15,16), be contained in by a fixed axis (20) in the cam balance staff (6) of hollow body, expose upper/lower terminal, be enclosed within respectively in the upper and lower balance staff hole (15,16), and press with T-shaped decorative mat (22) and to block balance staff hole (15), thereby stationary cam balance staff (6).A hole is arranged at the reset bottom of two leaf spring leafs (10), be fixed on the upper handle (9) with half-round head screw (11), the two leaf spring leafs (10) that reset are close on the boss (26), make cam balance staff (6) and connect reset two leaf reeds (10) and oscillating deck (5) and be used.

Upper handle (9) do not hold with the pot cover opposite position respectively have a hole, attachment pad (24) upper end is enclosed within the hole of upper handle (9), screw (23) is fastening with strengthening, attachment pad (24) lower end is enclosed within the hole of pot cover (4), fastening by valve seat (25) and pot cover, make pressure cooker in use repeatedly, prevent that the loosening phenomenon of offing normal from appearring in upper handle (9), thereby guarantee the regular event of safety device effectively.Strengthen screw (23) and be hollow body with valve seat (25), valve seat is equipped with fuse sheet in (25), and the pressure limiting valve on pot cover breaks down and can not exhaust, the excessive puncture fuse sheet of pot internal gas pressure, and gas is discharged from the hole, plays safety effect.

Through assembling and setting repeatedly, oscillating deck (5) is failure to actuate when pot cover (4) inactive state, and semicircle orifice (14) aligns with valve rod (1), and valve rod can slide up and down.When pot cover is not incorporated into as shown in Figure 4, pot body tooth overhang has been turned right the cam (13) of cam balance staff (6) to press interlock that oscillating deck (5) is turned left and swing and has been in valve rod (1) top when covering because of closing, valve rod (1) can not be gone up to the greatest extent fully discharge gas by the pore (12) of valve rod (1), make a pot internal gas pressure be not more than 5kpa, thereby play to close and cover safety effect, avoid not blowing up the situation that pot cover hurts sb.'s feelings and taking place because of lid is incorporated into the position.As shown in Figure 3 when pot cover is incorporated into fully, the cam (13) of cam balance staff (6) is fully along at the bottom of pot body tooth slides into tooth the time, oscillating deck (5) is under the effect of the two leaf spring leafs (10) that reset, cam balance staff (6) drives oscillating deck (5), semi-circular hole (14) aligns with valve rod (1), the crack is 2.0mm between the semi-circular hole (14) of valve rod (1) and oscillating deck (5), valve rod can be to rising, and under the effect of air pressure to rising to sealing, after food is cooked, arranged as gas in the pot, valve rod can be uncapped voluntarily owing to the weight of self falls.The pot internal memory has residual air, valve rod (1) can't fall owing to gas pressure, this moment is as uncapping, because cam balance staff (6) is under the connection swing effect at the bottom of the pot body tooth, make oscillating deck (5) produce swing from left to right, do not fall because of valve rod (1) this moment, and make oscillating deck (5) can't swing and lock to the right, therefore can't uncap.

In the utility model, upper handle can form with the phenoplasts compacting, and fastening glue bowl, countersunk head screw, half-round head screw all can be bought, and other part available metal materials processings get final product by the figure assembling.

Claims (1)

1, the automatic chain safety device of a kind of pressure cooker air pressure, form by handle, indicator valve, oscillating deck, cam balance staff, fixed axis, fixed cover, the two leaf spring leafs that reset etc., it is characterized in that: indicator valve is made up of valve rod, valve body, fastening glue bowl, valve rod (1) is a hollow rod member with the level, two ends respectively are drilled with 2 holes (12) up and down, fastening glue bowl (3) is arranged at the bottom, and valve rod (1) is contained in the valve body (2) into hollow body, and valve body (2) riveted joint is fastened on the pot cover (4); Oscillating deck (5) one ends and valve rod (1) aligned position have a semi-circular hole (14), and the other end has the rectangular groove of a flange (17), and there is a hole at the middle part, puts fixed cover (7), and countersunk head screw (8) is fixed on fixed cover (7) on the upper handle (9); Cam balance staff (6) is a hollow body, and there is a swing arm (19) upper end, and there is a boss (26) in the stage casing, and the lower end is provided with cam (13), and oscillating deck (5) is slidingly connected with swing arm (19), and boss (26) is slidingly connected with the two leaf spring leafs (10) that reset; Upper handle (9) middle part is provided with upper and lower balance staff hole (15,16), be contained in the hollow body of cam balance staff (6) by a fixed axis (20), expose two ends up and down, be enclosed within respectively in the upper and lower balance staff hole (15,16), T-shaped decorative mat (22) is pressed and is got lodged in the balance staff hole (15); One hole is arranged at reset two leaf spring leafs (10) bottom, is fixed on the upper handle (9) with half-round head screw (11), and the two leaf spring leafs (10) that reset are close on the boss (26); Upper handle (9) is not held with pot cover (4) relevant position, top and is respectively had a hole, and attachment pad (24) upper end is enclosed within the hole of upper handle (9), and screw (23) is fastening with strengthening, and the lower end is fastening by valve seat (25) and pot cover.Strengthen screw (23) and be hollow body with valve chamber (25), valve seat is equipped with fuse sheet in (25).

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