CN201263609Y

CN201263609Y - Pressure cooker handle with open/close safety device

Info

Publication number: CN201263609Y
Application number: CNU2008202015444U
Authority: CN
Inventors: 蔡振耀
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-07
Filing date: 2008-10-07
Publication date: 2009-07-01
Anticipated expiration: 2018-10-07

Abstract

The utility model discloses a pressure cooker handle with an opening and closing cover safety device, comprising an upper handle fixedly connected to a cooker cover and a lower handle fixedly connected to a cooker body; and a pneumatic pressure interlocking device arranged between the upper handle and the lower handle comprises a pushing plate, an indicator valve, a slide block assembly and an elastic reset device. By adopting the structure, the utility model can achieve the following effects that a valve port cannot be sealed and the pneumatic pressure in the cooker cannot rise when the cover is not closed completely, thereby the aim that the indicator valve leaks to prevent boosting is achieved. If residual air kept in the cooker is enough to hurt people, a valve rod of the indicator valve can stop the pushing plate from moving forwards, thus air and liquid with high temperature are prevented splashing to hurt people after the cooker cover is opened. The pneumatic pressure interlocking device of the handle has the advantages of simple structure, convenient operation, safety and reliability, abrasion resistance and long service life.

Description

The pressure cooker handle of band cover closing and opening safety device

Technical field

The utility model relates to kitchen utensils, especially the technical field of safety devices of pressure cooker.

Background technology

In order to guarantee the safe handling of pressure cooker, pressure cooker must be provided with folding lid safety guard.A kind of folding lid safety guard must satisfy: when a pressure cooker lid and a pot body fasten when not in place, pot inner pressure remains on below the 5Kpa; When having greater than 5Kpa pressure in the pot, pot cover is not opened.

Existing of a great variety, but most of complex structure about the safety guard of pressure cooker lid folding, also fail in the operation to reach and accurately judge whether the purpose that gets togather, still need to rely on operator's experience to judge.

Summary of the invention

The purpose of this utility model provides a kind of simple in structure, easy to operate can effectively demonstrate remaining high-temp liquid pressure condition in the pressure cooker, thereby can prevent that again under high-pressure situations folding pot cover from causing the pressure cooker handle to human injury's band cover closing and opening safety device.

In order to realize the foregoing invention purpose, the utility model has adopted following technical scheme: a kind of pressure cooker handle with cover closing and opening safety device, comprise and connect the upper handle that is fixed in pot cover and connect the lower handle that is fixed in pot body, be provided with an air pressure interlock between upper handle and the lower handle, it is characterized in that: described air pressure interlock comprises a push pedal, one indicator valve, one indicator valve cushion rubber,-slide block assembly and elasticity reset device, described push pedal can be slided with respect to upper handle, push pedal offers an indicator valve peep hole, and the push pedal bottom is provided with the indicator valve position limiting structure; Described indicator valve is installed in described peep hole below, comprises the valve seat and the valve rod of indicator valve cushion rubber and interlock, and the indicator valve cushion rubber is by being tightly connected with pot cover, but indication valve rod free lifting and passes upper handle and enters the peep hole below in indicator valve cushion rubber inner chamber; Described slide block assembly comprises-slide block that-ejector pin and groups of springs are synthesized the springiness resetting means, and interlock is in push pedal, and is connected between the lower handle; And the ejector pin square end is passed a pot hole and is stretched on the pot cover inner edge, and the folding time delay the low tooth of pot height and slided release, and the compression inner spring stretches, and promotes O-ring seal.Described spring reverse motion is connected between slide block assembly and the upper handle.

The utility model has adopted said structure, can reach following effect: 1. close lid when incomplete, push pedal lower surface stopping means can stop valve rod to rise, therefore valve port can not be sealed, steam can be discharged from valve port in the pot, therefore the pot internal gas pressure can not raise, thereby reaches the disappointing anti-purpose of boosting of indicator valve.The ejector pin of slide block assembly is released the sealing track with O-ring seal under spring action in addition, and air-flow is by carrying out pressure release around the pot cover O-ring seal in the pot.If when 2. also having residual air to be enough to hurt sb.'s feelings in the pot, the valve rod of indicator valve can maintain raised position under the effect of pot inner pressure, thereby stops the push pedal reach, prevent that pot cover from opening the gas-liquid of back high temperature and splashing out and hurt sb.'s feelings.3. the push pedal of this handle ejector pin after pot cover closes up fully can be compressed to cover O-ring seal is resetted, pot cover seals fastening with the pot body, and can produce " " one clear and melodious sound, clearly indication---correct operation is finished, and the user can relievedly use.The air pressure interlock of handle of the present utility model is simple in structure, easy to operate, safe and reliable, wear-resistant, long service life.

Description of drawings

Fig. 1 is a pressure cooker upper handle device schematic diagram.

Fig. 2 is a pressure cooker handle assembling schematic diagram.

Fig. 3 is a upper handle push pedal polycrystalline substance schematic diagram.

Fig. 4 is a slide block assembly device schematic diagram.

Fig. 5 is the lower handle structural representation.

Fig. 6 is the normal operating conditions schematic diagram of indicator valve when closing lid and not pressurizeing fully.

Fig. 7 is the normal operating conditions schematic diagram when indicating valve rod by pressure jack-up.

Fig. 8 closes the view that the incomplete time indication valve rod of lid can't rise.

The specific embodiment

As Fig. 1～Figure 5 shows that pressure cooker handle arrangement of the present utility model, comprise upper handle 1 that is fixed on pot cover and the lower handle 2 that is fixed on pot body.Be provided with the air pressure interlock between upper handle 1 and the lower handle 2, the air pressure interlock comprises push pedal 6, indicator valve 7, slide block assembly and elasticity reset device.

Upper handle 1 offers pressure limiting valve pilot hole 91, indication valve rod perforation 17.Pressure limiting valve 9 passes pressure limiting valve pilot hole 91 and is fixed in upper handle and pot cover.

Push pedal 6 offers peep hole 61, is positioned at indication valve rod 17 tops of boring a hole.The push pedal polycrystalline substance is provided with position limiting structure 62 as shown in Figure 3, also is provided with the parts 63 that are connected with slide block assembly.Push pedal 6 is embedded in upper handle 1 surface, and can slide before and after the upper handle surface.

Indicator valve 7 cooperates composition with the indicator valve cushion rubber, indicator valve cushion rubber and pot cover are tightly connected, indication valve rod 71 free liftings are in the cushion rubber chamber of O-ring seal, the top entered push pedal peep hole below when it rose, the lower end will compress the sealing surface of sealing ring 72, cut off the inner gas channel that is in communication with the outside of pot.

The slide block assembly interlock comprises slide plate 4, ejector pin 5, ejector pin spring 3 in push pedal 6.As shown in Figure 4, slide plate 4 belows are provided with vertical to the bayonet lock 43 that stretches out, and are used for lower handle in the clamping.Correspondingly, offer the draw-in groove 23 that mates with bayonet lock 43 on the lower handle.Slide plate 4 tops are provided with the parts 41 that are connected with push pedal.Slide plate 4 also offers the perforation 45 that is connected with ejector pin.Ejector pin 5 socket ejector pin springs 3 also are arranged in the perforation 45, and its front end is fixed in the shrinkage pool of pot cover.

Described elasticity reset device is a torsion spring 10, is socketed on torsion axis 11.Slide plate 4 offers opening torsion spring card forward and is pickled with grains or in wine 42, and torsion spring 10 is installed in draw-in groove 42, one end butt groove rear wall, other end butt upper handle inwall.When external force was pushed push pedal to the place ahead, slide block assembly was pushed to the place ahead, and torsion spring is compressed, and when the thrust forward that is applied disappeared, the rebound effect of spring makes to be pushed slide block assembly to rear and reset, thereby makes push pedal 6 be returned to the tram.As shown in Figure 5, illustrate for the track of slide block bayonet lock 43.When the rotation upper handle when closing pot cover, slide block bayonet lock 43 builds rail along closing of lower handle in closing the process of pot cover leads spigot surface 22 and enters draw-in groove 23, when entering draw-in groove 23 fully, under the effect of torsion spring power, the push pedal of slide plate interlock resets together.During proper reset, bayonet lock 43 enters the draw-in groove 23 of lower handle 2 fully, is connected between upper handle and the lower handle, thereby upper and lower handle is connected together, send simultaneously " " a clear and melodious sound, signal is closed lid fully.

Pot cover is provided with pressure limiting valve 9, is made up of valve body, compression spring, and compression spring is in 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 operation principle of this pressure cooker handle is as follows:

Pot cover sealed by big O-ring seal with the pot body when pressure cooker used: screw when covering, available hand promotes push pedal 6 forward, the bayonet lock 43 of upper handle slide plate builds rail along closing of lower handle in closing the process of pot cover leads spigot surface 22 and enters draw-in groove 23, when entering draw-in groove 23 fully, under the elastic force effect of torsion spring 10, slide plate 4 interlock push pedals reset together.During proper reset, bayonet lock enters the draw-in groove 23 of lower handle 2 fully, be connected between upper handle and the lower handle, thereby upper and lower handle clamping is pinned together, send simultaneously " " a clear and melodious sound, lid clearly indication is completely closed in signal, and this moment, pot cover was air tight by the rubber seal sealing with the pot body.At this moment, the state of indicator valve as shown in Figure 6.Close not in place and when work as pot cover, then as shown in Figure 8, the valve rod of indicator valve is not below the peep hole of push pedal, stop and be pushed dental lamina limit structure 62, so valve rod can not rise and O-ring seal seals up valve port, the pot inner vapor can be discharged from valve port, so the pot internal gas pressure can not raise (generally can not surpass 5Kpa), this moment, pressure cooker can't be worked.

When the pressure cooker operate as normal, the pot internal gas pressure progressively raises in the process of heating, and the valve rod 71 of indicator valve is seen through the peep hole of being located in the push pedal 6 61 and can see the indicator valve top that reveals by jack-up.The valve rod rising enters in the chamber, peep hole below of push pedal, is limited within the position limiting structure 62, and push pedal can not be pushed, and therefore pot cover is lockable and can't opens.When pot inner pressure continues to raise; when surpassing the pressure that limits; pressure limiting valve 9 works and is carried out pressure release by air pressure jack-up, avoids the over proof operating pressure of pressure, to play the safeguard protection effect; when pot after hours; after pot inner vapor pressure carries out pressure release by the pressure limiting valve opening, fully do not cool off and discharges as the pot inner vapor, a pot internal gas pressure does not drop to safe opening pressure (generally not can greater than 3Kpa); the valve rod of indicator valve can not fall, and pot cover still is in locking state and can't opens.Have only when stagnation pressure drops to safe opening pressure in the pot, the valve rod of indicator valve just can drop to below the push pedal lower surface, this moment with hand forward push pedal 6 slide block assembly could be withdrawed from slide plate draw-in groove 23 along slide plate trajectory 24 shown in Figure 5, and in spigot surface 22, withdraw from, can open pot cover with the turn upper handle.For the safety that guarantees to use.Decontrol push pedal after uncapping, push pedal resets under torsion spring 10 effects, to guarantee that closing lid next time can normally carry out.

This pressure cooker handle can show the interior remaining steam pressure situation that takes the dish out of the pot by indicator valve effectively owing to adopted advanced rational air pressure and the structure of chain folding lid cover closing and opening safety device, can guarantee that again pressure cooker carries out the folding lid under safe pressure.

Claims

1, a kind of pressure cooker handle with safety device, comprise the upper handle that is fixed on pot cover and be fixed on the lower handle of pot body, be provided with an air pressure interlock between upper handle and the lower handle, it is characterized in that: described air pressure interlock comprises a push pedal, one indicator valve, one slide block assembly and an elasticity reset device

Described push pedal can be slided with respect to upper handle, and push pedal offers an indicator valve peep hole, and the push pedal bottom is provided with the indicator valve position limiting structure;

Described indicator valve correspondence is installed in described peep hole below, comprise O-ring seal, and the valve seat and the valve rod of interlock, valve seat is connected with pot cover by O-ring seal, but the valve rod free lifting and passes upper handle and enters described peep hole below inner chamber in the O-ring seal inner chamber;

Described slide block assembly interlock is in push pedal, and is connected between the lower handle;

Described elasticity reset device is connected between slide block assembly and the upper handle.

2, the pressure cooker handle of band safety device according to claim 1, it is characterized in that: described slide block assembly comprises that a bottom is provided with the slide plate of bayonet lock, one is fixed in the ejector pin of slide plate, and an ejector pin spring of installing in the ejector pin inner chamber, and described ejector pin is installed between upper handle and pot cover; Described lower handle offers and the suitable draw-in groove of described bayonet lock.

3, the pressure cooker handle of band safety device according to claim 1, it is characterized in that: described elasticity reset device is a torsion spring, is sheathed on a torsion axis, and an end is connected to upper handle, and the other end is connected to slide block assembly.