CN2367212Y

CN2367212Y - Safety device for opening and closing lid of pressure cooker

Info

Publication number: CN2367212Y
Application number: CN 98250429
Authority: CN
Inventors: 梁辉勇
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-12-06
Filing date: 1998-12-06
Publication date: 2000-03-08
Anticipated expiration: 2008-12-06

Abstract

The utility model provides a safety device for opening and closing lid of a pressure cooker, which comprises an upper and a lower hand levers and a thrust valve, wherein, the inner of the upper hand lever is fixed with a positioning shaft which is sheathed with a swinging sleeve, and a dummy club and a raised head are arranged on the swinging sleeve. The inner of the upper hand lever is also provided with a push plate, and a blocking shoulder which is contacted with the dummy club is arranged on the push plate; a spring is arranged between the push plate and the upper hand lever, and in addition, the lower part of the upper hand lever is provided with a guide post; a positioning slot is arranged on the lower hand lever corresponding to the guide post. The utility model leaves out a push key and has the advantages of convenient operation, simple structure and long service life.

Description

Cover closing and opening safety device for pressure cooker

The utility model relates to the safety device that a kind of pressure cooker open and close covers.

Pressure cooker generally uses in China.The folding of old-fashioned pressure cooker covers no safety device, in actual use, has caused a large amount of explosion accidents.Therefore, the national Specification that pressure cooker is new pressure cooker open and close cover safety device must be arranged.At present, the kind of cover closing and opening safety device for pressure cooker is more, but cardinal principle is similar.The novel pressure cooker open and close cover safety control that provides of Chinese patent 94236130.x for example, be to utilize thrust plate control multifunction valve to open and close, reach pot cover close do not boost when not in place, purpose that pot inner pressure is not opened pot during greater than 1.1Kpa, realized safety opening-closing cover.Although such cover closing and opening safety device can guarantee the safe handling of pressure cooker, also exist many weak points.The one, structure is complicated, occurs some problems easily after the use long period is interior, comes off easily as the push button that is connected with thrust plate; The 2nd, troublesome poeration is opened pot cover at every turn and all will be promoted push button, and long-term use is very inconvenient.

The purpose of this utility model is at present existing the problems referred to above, provide a kind of simple in structure, open cover closing and opening safety device for pressure cooker easily.

The purpose of this utility model realizes by following technical proposal: this cover closing and opening safety device for pressure cooker comprises the upper handle that connects with pot cover, the lower handle that connects with the pot body and the thrust valve on the pot cover, fixing a locating shaft in the upper handle, socket swing set on the locating shaft, the top of swing set is provided with two lugs, and the bottom is provided with plush copper.Push pedal is housed in upper handle, and push pedal is positioned at the swing set upper end, is provided with the bar shaped locating hole in the middle of the push pedal, and locating shaft passes locating hole, and shoulder block is set in the push pedal, and shoulder block contacts with the lug of swing set, also is provided with spring between push pedal and the upper handle.In addition, guide pillar is being fixed in the upper handle bottom, on lower handle and the guide pillar correspondence position locating slot is arranged.

The embodiment that provides below in conjunction with accompanying drawing elaborates to the utility model.

Fig. 1 is the cutaway view of the cover closing and opening safety device for pressure cooker that provides of the utility model.

Fig. 2 is the front view of swing set.

Fig. 3 is the side view of swing set.

Fig. 4 is the front view of push pedal.

Fig. 5 is the upward view of push pedal.

Fig. 6 is the vertical view of lower handle.

As shown in Figure 1, this cover closing and opening safety device for pressure cooker comprises upper handle 2, lower handle 3 and thrust valve 5.Upper handle 2 connects with pot cover 1, and lower handle 3 connects with pot body 4, and thrust valve 5 is positioned on the pot cover 1, and the spool 51 of thrust valve 5 can pass upper handle 2.

As shown in Figures 2 and 3, swing set 7 is on the locating shaft 6 that is socketed in the upper handle 2, and swing set 7 can be rotated around locating shaft 6.Two lugs 72 on swing set 7 tops are positioned at swing set 7 both sides, and on same straight line.Plush copper 71 directions of swing set 7 bottoms are vertical with the direction of lug 72.As can be seen from Figure 1, the plush copper 71 of swing set 7 is passed pot cover 1 edge, withstands on the convex edge of pot body 4.

As shown in Figure 4 and Figure 5, push pedal 8 is positioned at upper handle 2 swing sets 7 upper ends.Locating hole 81 and shoulder block 82 are arranged in the push pedal 8, and shoulder block 82 contacts with the lug 72 of swing set 7.Be provided with spring 9 between push pedal 8 and the upper handle 2.In the present embodiment, push pedal 8, swing set 7 and locating shaft 6 all adopt metal material to make, and can improve the service life and the reliability of this device.

As shown in Figure 1, in the ordinary course of things, swing set 7 does not have stressed, and push pedal 8 departs from the exit position of thrust valve core 51 under the effect of spring 7, and thrust valve 5 can operate as normal.In closing the process of lid, because the pressure cooker pot edge is concavo-convex alternate, plush copper 71 in the swing set 7 will at first be in the position of convex edge, plush copper 71 is withstood in the convex edge, make swing set 7 rotate an angle, the lug 72 on swing set 7 tops will drive push pedal 8 reaches like this, makes push pedal 8 block the exit position of thrust valve 5, thrust this moment valve 5 cisco unity malfunctions, pot inner pressure can not rise.Have only when being rotated further pot cover 1 and making it be incorporated into the position fully, when plush copper moved to the position of pot edge recess, the external force that acts on the swing set 7 was eliminated, and push pedal 8 will return to initial position under the effect of spring 9, and thrust valve 5 can operate as normal.Guide pillar 21 is being fixed in upper handle 2 bottoms, and lower handle 3 and guide pillar 21 have locating slot 31 on the corresponding position, see Fig. 6.Guide pillar 21 and locating slot 31 can guarantee to close the correct position that pot cover 1 cooperates with pot body 4 in the process of lid.Because locating slot 31 is the U font, is incorporated into a BB1 21 at pot cover 1 and is blocked, and pot cover 1 can not be rotated further, and can make to close and cover handling safety.When pressure cooker is finished using need uncap the time, because plush copper 71 must have a process that makes push pedal 8 reaches equally through the convex edges of pot bodies.If pot inner pressure is higher than the external world, the spool 51 of thrust valve 5 is in the come-up state, and push pedal 8 will be blocked, and pot cover 1 can not be opened.In a word, the purpose that this device has realized fully that pot cover 1 closes that pressure cooker can not boost when not in place, pot cover 1 can not be opened when high pressure being arranged in the pot has been guaranteed the safe handling of pressure cooker.

Compared with prior art, this cover closing and opening safety device for pressure cooker has been owing to omitted push button, so Easy to operate; Part movable in the upper handle all can adopt metal to make, and can improve to make With life-span and functional reliability; Simultaneously, the utility model is simple in structure, and product cost is low, clear Wash conveniently, have higher practical value.

Claims

1, a kind of cover closing and opening safety device for pressure cooker comprises the upper handle (2) that connects with pot cover (1), the lower handle (3) that connects with pot body (4) and the thrust valve (5) on the pot cover (1), it is characterized in that:

Fixing a locating shaft (6) in a, the upper handle (2), locating shaft (6) is gone up socket swing set (7), and the top of swing set (7) is provided with two lugs (72), and the bottom is provided with plush copper (71);

In b, the upper handle (2) push pedal (8) is housed, push pedal (8) is positioned at swing set (7) upper end, be provided with bar shaped locating hole (81) in the middle of the push pedal (8), locating shaft (6) passes locating hole (81), shoulder block (82) is set in the push pedal (8), shoulder block (82) contacts with the lug (72) of swing set (7), also is provided with spring (9) between push pedal (8) and the upper handle (2);

Guide pillar (21) is being fixed in c, upper handle (2) bottom, on lower handle (3) and guide pillar (21) correspondence position locating slot (31) is arranged.

2, cover closing and opening safety device for pressure cooker according to claim 1 is characterized in that two lugs (72) on described swing set (7) top are positioned at swing set (7) both sides, and on same straight line.

3, cover closing and opening safety device for pressure cooker according to claim 2 is characterized in that described plush copper (71) direction is vertical with the direction of lug (72).