CN200945101Y - Novel pressure cooker opening and closing cover structure - Google Patents

Abstract

The utility model relates to a new pressure cooker opening and closing cover structure belonging to the daily necessity technical field, which solves the current technical problems, like low stability, inadequate tightness among the clamp and wok cover as well as the wok body edge, and unsafe performance, etc. The opening and closing cover is arranged between the wok body and the wok cover and comprises at least two clamps which are applied to buckle the wok cover and the edge of the wok body; and the wok cover is connected with two connecting rods through the pins, wherein the front end of the connecting rod is articulated with the clamp, while the center of the wok cover is provided with a rotary table which is designed to turn the connecting rod to swing around the pin junction of the connecting rod and the wok cover. Thus, the utility model has the advantages of high working stability, safe and reliable operation, relatively large use flexibility and long service life.

Description

Novel pressure cooker open and close cover structure

Technical field

The utility model relates to the articles for daily use technical field, especially relates to the novel pressure cooker open and close cover structure that uses on a kind of pressure cooker.

Background technology

In order to realize the tight fastening of pot body and pot cover, so that promote the pressure in the pot safely, people have designed various types of pressure cookers.Press the closed form difference, can be divided into revolving type pressure cooker, pressure cooker with pressing cover, fall to covering the formula pressure cooker, clamp-type pressure cooker or the like.

At present, the range of application of revolving type pressure cooker is the most extensive, and by the rotation pot cover, the last lower tooth that going up of pot body and pot cover staggered originally fastens, and reaches the purpose of sealing.But the pressure cooker security performance of this structure is difficult to be protected, and has potential safety hazard easily, and improper use is prone to accidents.And the mould of making pot body and pot cover is very complicated, and die life is not long, and the product size precision is not high.In order to improve security performance, often need to be provided with various types of secondary safeties, so just caused integrally-built complicatedly, it is inconvenient to operate also.Material thickness that also can be by increasing whole device or use the safety in utilization that high-intensity material improves pressure cooker instead; Obviously, can make pressure cooker become heavy like this, cost of manufacture increases.On the other hand, in use, the stroke of folding lid is long, cooperates tight slightlyly, and the consumer uses inconvenience.

For this reason, people have carried out long-term exploration, have proposed various types of clamp-type pressure cookers.For example, Chinese patent literature discloses a kind of rotating clamp jaw type pressure cooker application number: CN02284718.9, comprise a pot body, cover, be installed in the pressure limiting valve on the pot cover at pot pot cover on one's body, be arranged on the pot cover handle on the pot cover, can be clamped in the clamp on pot body and the pot cover, be provided with guide post on clamp, pot cover is provided with the gathering sill of ccontaining guide post, one end of connecting rod and clamp flexibly connect, and the axis of the other end and pot cover handle flexibly connects.The somebody has applied for the steady open-and-close mechanism application number of a kind of pressure cooker lid by name: the patent of CN01225144.5, runner places on the centre of pot cover, the centre of runner has square hole, so that it is corresponding with the square axis that the handle that is installed in the plastic jacket centre protrudes downwards, be convenient to extract out or insert and operate rotation, one end of connecting rod is connected with runner by rotary column, and the other end is connected with the guide post of its underpart by rivet, and pot cover clamps it with pot body and function clamp.

Above-mentioned clamp-type pressure cooker has improved security performance to a certain extent, simplifies the structure, but still exists certain defective.For example: 1. clamp all is connected on the connecting rod, under the drive of connecting rod, move radially, reach the purpose at fastening pot cover and pot body edge, for this reason along pot cover, in case it is not tight that connecting rod has swing will cause clamp and pot cover and pot body edge to be fitted when action slightly, security is not high.2. connecting rod is in extended state in use for a long time, is easy to generate deformation after long-time the use; And the distance that connecting rod moves radially is predefined, can't adjust, and it is not in place to cause clamp to fasten like this.3. Zheng Ti structure is still complicated, and cost of manufacture height, job stability are difficult to be protected, and can not thoroughly eliminate the potential safety hazard of pressure cooker.

The pressure cooker open and close cover structure of existing other type also exists similar weak point.

Summary of the invention

The purpose of this utility model is at the problems referred to above, provides a kind of reasonable in design, the edge tight connecting of clamp and pot cover and pot body, job stability height, safe and reliable novel pressure cooker open and close cover structure; The stability that has solved existing in prior technology work is not high, the edge mate defective tightness of clamp and pot cover and pot body, the technical problem that security performance is difficult to be protected etc.

Another purpose of the present utility model is at the problems referred to above, provides a kind of long-term use also can not reduce security performance, can adjust clamp as the case may be with pot cover and pot body edge cooperate the novel pressure cooker open and close cover structure of long service life; Solved long-term use of existing in prior technology and caused the cooperation deviation, the technical problem that effective storage life is short etc.

It is at the problems referred to above that the utility model has a purpose again, provides a kind of required precision low, and cost of manufacture is cheap, is convenient to the novel pressure cooker open and close cover structure of user's operation; It is higher to have solved the existing in prior technology required precision, cost of manufacture height, the technical problem that is difficult to operate etc.

For achieving the above object, the utility model has adopted following technical proposal: this novel pressure cooker open and close cover structure, be arranged between the pot body and pot cover of pressure cooker, comprise at least two clamps that the edge of pot cover and pot body can be snapped together, it is characterized in that, be hinged with the connecting rod that equates with clamp quantity on pot cover, the leading section and the clamp of connecting rod are hinged, central authorities at pot cover are provided with a rotating disk, and rotating disk can be stirred the pin joint swing of connecting rod around itself and pot cover.

When original state, usually every connecting rod respectively with radially the coinciding of pot cover.Rotating disk drivening rod in rotation process makes connecting rod depart from the position that radially coincides of original and pot cover around the pin joint swing of itself and pot cover, and shape in an angle between the two.Along with the increasing of pendulum angle, the leading section of connecting rod moves closer to the edge of pot cover and pot body, because clamp is hinged on the leading section of connecting rod, clamp will be buckled in the edge of pot cover and pot body.The utility model has creatively changed prior art and has adopted the radially mode of adjustable cramp, has overcome the defective of aforesaid way effectively.Certainly the rotating disk shape here can be designed to diversified form, for example polygon, circle, ellipse or the like.The utility model can according to circumstances be regulated the rotational angle of rotating disk, to adapt to the long-time variation of using back each several part size, makes the edge tight connecting of clamp and pot cover and pot body.If connecting rod can be eliminated above-mentioned influence by the mode that increases rotational angle because long-term the use is elongated.

Stir connecting rod swing in the dial rotation process, connected mode between the two can have varied.In above-mentioned novel pressure cooker open and close cover structure, described pot cover central authorities are fixed with a chassis by pivot pin, the inner of each connecting rod is hinged on the chassis by pivot one respectively, every connecting rod is respectively equipped with a bar hole, above-mentioned rotating disk is provided with and equates with bar hole quantity and backing pin one to one that each backing pin is inserted in the bar hole respectively.In the dial rotation process, backing pin can drive each connecting rod and swing around pin joint.In swing process, backing pin slides into the other end from an end of bar hole.

In above-mentioned novel pressure cooker open and close cover structure, be fixed with brace on the described clamp, brace is hinged by pivot two and connecting rod outer end, is provided with flanging at the brace sidepiece, and a side of described connecting rod is provided with the rib that is used to stop above-mentioned flanging.

Above-mentioned flanging and rib in use can be in contact with one another, and by both interactions, control connection sheet and connecting rod are on the same line all the time, thus the control clamp can not vacillate now to the left, now to the right all the time, guarantee that it can normally uncap.

As another kind of scheme, in above-mentioned novel pressure cooker open and close cover structure, described clamp is hinged on the outer end of connecting rod by pivot two, is with a torsion spring on pivot two, and described torsion spring two ends act on respectively on clamp and the connecting rod.

In the clamp swing process, its position relation with respect to pot cover and pot body edge is in variable condition, if do not carry out the adjustment of angle, whole clamp has only part can be buckled in the edge of pot cover and pot body, causes security performance not high.The end of clamp and connecting rod is hinged, and can in time adjust the angle of clamp, enables closely to be fastened on the edge of pot cover and pot body.Changed be connected existing defective of clamp that prior art exists and interlinking lever end.In closing the process of lid, an end of clamp at first with a pot cover and a pot body EDGE CONTACT because clamp and connecting rod are hinged, connecting rod can be rotated further.Under the effect of torsion spring, whole clamp all is buckled in the edge of pot cover and pot body.Torsion spring can guarantee that clamp can not break away from after fastening.

In above-mentioned novel pressure cooker open and close cover structure, be provided with a center torsion spring between described rotating disk and the chassis, the center torsion spring set is on pivot pin, and its two pin act on respectively on rotating disk and the chassis.Under the effect of center torsion spring, an active force is arranged all the time between rotating disk and the chassis.

In above-mentioned novel pressure cooker open and close cover structure, described be provided with on the pot cover one can be under the pot inner pressure effect only the starting of lifting, described only start can with the bayonet socket that is arranged on disk edge buckle mutually.

After pot cover closes, when in pot pressure being arranged, only start and can rise automatically, make in its bayonet socket that enters disk edge, rotating disk just can't rotate like this, prevents maloperation, has improved the security of pressure cooker.When pot inner pressure descends, only start and can descend, make and only start and bayonet socket breaks away from, rotating disk can freely rotate.

In above-mentioned novel pressure cooker open and close cover structure, be fixed with on the described pot cover and connecting rod gag lever post one to one, described gag lever post leans mutually with the brace of clamp when clamp turns to open position.

When clamp turned to open position, brace that is connected with it and the gag lever post on the pot cover were in contact with one another, thereby the control clamp can not swung.At this moment, above-mentioned flanging and rib also are in contact with one another.

In above-mentioned novel pressure cooker open and close cover structure, described clamp is curved, and the edge of its radian and pot cover and pot body adapts; The cross section of clamp is the U type, is provided with a planar annular at the edge of pot cover, and the edge of pot body is provided with an anti-edge, and described clamp is buckled in above-mentioned planar annular and instead along last.Make clamp to be buckled in firmly on pot body and the pot cover by such structure.

In above-mentioned novel pressure cooker open and close cover structure, be evenly distributed with 2～6 connecting rods on the described pot cover, the end of every connecting rod is hinged with a clamp respectively.The connecting rod here and the quantity of clamp can be provided with as required, but will be provided with two at least, and in order to guarantee that stressed evenly each clamp evenly arranges.

In above-mentioned novel pressure cooker open and close cover structure, be provided with a button in the described rotating disk, button is made up of the body of rod and plush copper, is with the compression spring on the body of rod, is provided with the deep-slotted chip breaker that can enter for the body of rod of button on rotating disk.Under the effect of compression spring, button has the upwards trend of motion all the time.When rotating disk rotated to closed condition, the body of rod was in the deep-slotted chip breaker.When rotating disk rotated to open mode, plush copper leaned at the deep-slotted chip breaker opening part, thereby rotating disk can't be rotated counterclockwise under the effect of center torsion spring.Certainly, when it is rotated counterclockwise with under the button by getting final product, that is to say that pressure cooker touches the button under at first needing in closing the process of lid.

Compared with prior art, the advantage of this novel pressure cooker open and close cover structure is:

1. simple in structure, novel, the edge tight connecting of clamp and pot cover and pot body, the job stability height, safe and reliable.

2. the running orbit that fastens of the edge of clamp and pot cover and pot body is not traditional moving radially, but that the swing by connecting rod is camber line is approaching, can adjust clamp and position pot cover and pot body edge as the case may be, and the flexibility of use is bigger.

3. long service life, required precision is low, and cost of manufacture is cheap, uses also very convenient.

Description of drawings

Fig. 1 is the cutaway view of this novel pressure cooker open and close cover structure when being applied to pressure cooker.

Fig. 2 be this novel pressure cooker open and close cover structure when being applied to pressure cooker not with the three-dimensional structure diagram of rotating disk.

Fig. 3 is the three-dimensional structure diagram of this novel pressure cooker open and close cover structure turntable.

Fig. 4 is the structural representation that this novel pressure cooker open and close cover structure is in opening when being applied to pressure cooker.

Fig. 5 is that this novel pressure cooker open and close cover structure is in the structural representation that closes the process of lid when being applied to pressure cooker.

Fig. 6 is that this novel pressure cooker open and close cover structure is in the structural representation that closes the state of lid when being applied to pressure cooker.

Fig. 7 is clamp and the joining three-dimensional structure diagram of connecting rod in this novel pressure cooker open and close cover structure.

Fig. 8 is that A-A amplified sectional structure chart in part along the line when pressure cooker was in high pressure conditions in Fig. 6.

Fig. 9 is that A-A amplified sectional structure chart in part along the line when pressure cooker was in low-pressure state among Fig. 6.

Figure 10 is the local sectional structure chart that amplifies of B-B among Fig. 4.

Figure 11 is the local sectional structure chart that amplifies of C-C among Fig. 6.

Figure 12 is the partial sectional view of the another kind of embodiment of this novel pressure cooker open and close cover structure.

Among the figure, pot body 1, instead along 1a, pot cover 2, planar annular 2a, clamp 3, brace 3a, flanging 3b, inwall 3c, end face 3d, bottom surface 3e, gap 3f, connecting rod 4, bar hole 4a, rib 4b, rotating disk 5, backing pin 5a, bayonet socket 5b, centre bore 5d, boss one 5e, pivot pin 6, chassis 7, deep-slotted chip breaker 7c, boss two 7e, pivot 1, pivot 29, torsion spring 10, center torsion spring 11, only start 12, gag lever post 13, button 14, body of rod 14a, plush copper 14b, compression spring 15, sealing ring 16, go up pin 16a, leftover bits and pieces 16b, main body 16c.

The specific embodiment

Embodiment 1:

Fig. 1, Fig. 2 and novel pressure cooker open and close cover structure shown in Figure 3 are arranged between the pot body 1 and pot cover 2 of pressure cooker, comprise parts such as connecting rod 4, clamp 3, rotating disk 5, chassis 7.

As shown in Figures 2 and 3, pot cover 2 central authorities are fixed with a chassis 7 by pivot pin 6.The center of rotating disk 5 is provided with a centre bore 5d, and rotating disk 5 is enclosed within on the above-mentioned pivot pin 6 by centre bore 5d.Be provided with a center torsion spring 11 between rotating disk 5 and the chassis 7, center torsion spring 11 is enclosed within on the pivot pin 6, and its two pin act on respectively on rotating disk 5 and the chassis 7.Specifically, two of center torsion spring 11 pin are positioned at boss one 5e on the rotating disk 5 respectively and boss two 7e on the chassis 7 stop.Under the effect of center torsion spring 11, an active force is arranged all the time between rotating disk 5 and the chassis 7 like this.

As Fig. 2 and Fig. 4 and Fig. 5 and shown in Figure 6, on the pot cover 2 of circle, be provided with three clamps 3 that the edge of pot cover 2 and pot body 1 can be snapped together.These three clamps 3 arrange that evenly angle between any two is 120 °.The inner of each connecting rod 4 is hinged on the chassis 7 by pivot 1 respectively, and every connecting rod 4 is respectively equipped with a bar hole 4a.Above-mentioned rotating disk 5 is provided with and equates with bar hole 4a quantity and backing pin 5a one to one that each backing pin 5a is inserted in respectively in the bar hole 4a.In rotating disk 5 rotation processes, backing pin 5a can drive each connecting rod 4 and swing around pin joint.In swing process, backing pin 5a slides into the other end from the end of bar hole 4a.

As shown in Figure 7, be fixed with brace 3a on the clamp 3, brace 3a is hinged by pivot 29 and connecting rod 4 outer ends, is provided with flanging 3b at brace 3a sidepiece.One side of connecting rod 4 is provided with the rib 4b that is used to stop above-mentioned flanging 3b.Flanging 3b and rib 4b in use can be in contact with one another, and by both interactions, control connection sheet 3a and connecting rod 4 are on the same line all the time, thus control clamp 3 can not vacillate now to the left, now to the right all the time, guarantee that it can normally uncap.

As Fig. 3 and Fig. 6 and Fig. 8 and shown in Figure 9, what be provided with a lifting under pressure on pot cover 2 only starts 12, only start 12 can with the bayonet socket 5b that is arranged on rotating disk 5 edges buckle mutually.After pot cover 2 closes, when in pot pressure being arranged, only start 12 can rise automatically, make in its bayonet socket 5b that enters rotating disk 5 edges, rotating disk 5 just can't rotate like this, prevents maloperation, has improved the security of pressure cooker.When pot inner pressure descends, only start 12 can descend again, make and only start 12 to break away from card 5b, rotating disk 5 can freely rotate.

As Fig. 2, Fig. 4, Fig. 5 and shown in Figure 6, be fixed with on the pot cover 2 and connecting rod 4 gag lever post 13 one to one, when gag lever post 13 turns to open position at clamp 3, lean mutually with the brace 3a of clamp 3.As shown in Figure 4, when clamp 3 turned to open position, brace 3a that is connected with it and the gag lever post 13 on the pot cover 2 were in contact with one another, thereby control clamp 3 can not swung.Because when open mode, brace 3a and connecting rod 4 are on the same straight line, therefore, this moment, flanging 3b and rib 4b also were in contact with one another.

As shown in Figure 1, be provided with a button 14 in the rotating disk 5, button 14 is made up of body of rod 14a and plush copper 14b, is with compression spring 15 on body of rod 14a, is provided with the deep-slotted chip breaker 7c that can enter for the body of rod 14a of button 14 on rotating disk 5.Under the effect of compression spring 15, button 14 has the upwards trend of motion all the time.When rotating disk 5 rotated to closed condition, body of rod 14a was in the deep-slotted chip breaker 7c.When rotating disk 5 rotated to open mode, plush copper 14b leaned the opening part at deep-slotted chip breaker 7c, thereby rotating disk 5 can't be rotated counterclockwise under the effect of center torsion spring 11.

As shown in Figure 10 and Figure 11, clamp 3 is curved, and the edge of its radian and pot cover 2 and pot body 1 adapts.Clamp 3 pairing central angles are 15 degree.Can guarantee the tight fastening of clamp 3 like this, stress balance.The cross section of clamp 3 is the U type, is provided with a planar annular 2a at the edge of pot cover 2, and the edge of pot body 1 is provided with one instead along 1a, and clamp 3 is buckled in above-mentioned planar annular 2a and instead along on the 1a.

As shown in figure 10, the inwall 3c of clamp 3, end face 3d, bottom surface 3e are not fastened on the edge of pot cover 2 and pot body 1 fully.Has a gap 3f at inwall 3c and pot cover 2, pot body between 1 edge.Clamp 3 and the connecting rod 4 of this moment still are in plumbness.

As shown in figure 11, because clamp 3 is hinged on the leading section of connecting rod 4, be rotated further connecting rod 4, clamp 3 will clockwise rotate, and makes clamp 3 be buckled in the edge of pot cover 2 and pot body 1 fully.Inwall 3c and the pot cover 2, pot body 1 edge that are clamp 3 contact fully, 3f very close to each other between the two, end face 3d, bottom surface 3e respectively with planar annular 2a with instead contact along 1a.

Present embodiment can according to circumstances be regulated the rotational angle of rotating disk 5, to adapt to the long-time variation of using back each several part size, makes clamp 3 and the edge tight connecting of pot cover 2 with pot body 1.In the utility model, the running orbit that the edge of clamp 3 and pot cover 2 and pot body 1 fastens is not traditional moving radially, but that the swing by connecting rod 4 is camber line is approaching.

In the present embodiment, be provided with a sealing ring 16 between pot cover 2 and pot body 1, the cross section of sealing ring 16 is V-shaped, and pin 16a can lean against the inwall of pot cover 2 on it, and leftover bits and pieces 16b can lean against the inwall of pot body 1.Sealing ring 16 main body 16c are arranged in the planar annular 2a at pot cover 2 edges.Sealing ring 16 in the present embodiment is made by elasticity, high temperature resistant, non-toxic plastic.The hunting range of connecting rod 4 is 10～60 degree.Along with the increasing of pendulum angle, the leading section of connecting rod 4 moves closer to the edge of pot cover 2 and pot body 1.

Embodiment 2:

As shown in figure 12, clamp 3 is hinged on the outer end of connecting rod 4 by pivot 29, is with a torsion spring 10 on pivot 29, and torsion spring 10 two ends act on respectively on clamp 3 and the connecting rod 4.In clamp 3 swing process, its position relation with respect to pot cover 2 and pot body 2 edges is in variable condition, if do not carry out the adjustment of angle, whole clamp 3 has only part can be buckled in the edge of pot cover 2 and pot body 1.Present embodiment can in time be adjusted the angle of clamp 3, enables closely to be fastened on the edge of pot cover 2 and pot body 1.Torsion spring 10 can guarantee that after buckling, clamp 3 can not break away from.In addition, come off in order to prevent torsion spring 10, pivot 29 tops that are used for fixing torsion spring 10 have a top cap.

The edge that the clamp 3 of present embodiment not only can limit pot cover 2 and pot body 1 moves up and down, and can apply a pressure radially simultaneously under the effect of torsion spring 10, makes whole device stressed more reasonable.All the other all with embodiment 1 roughly the same, this paper does not do and gives unnecessary details.

Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Although this paper has used pot body 1 morely, instead along 1a, pot cover 2, planar annular 2a, clamp 3, brace 3a, flanging 3b, inwall 3 c, end face 3d, bottom surface 3e, gap 3f, connecting rod 4, bar hole 4a, rib 4b, rotating disk 5, backing pin 5a, bayonet socket 5b, centre bore 5d, boss one 5e, pivot pin 6, chassis 7, deep-slotted chip breaker 7c, boss two 7e, pivot 1, pivot 29, torsion spring 10, center torsion spring 11, only start 12, gag lever post 13, button 14, body of rod 14a, plush copper 14b, compression spring 15, sealing ring 16, last pin 16a, leftover bits and pieces 16b, terms such as main body 16c, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.

Claims (10)

1, a kind of novel pressure cooker open and close cover structure, be arranged between the pot body (1) and pot cover (2) of pressure cooker, comprise at least two clamps (3) that the edge of pot cover (2) and pot body (1) can be snapped together, it is characterized in that, on pot cover (2), be hinged with the connecting rod (4) that equates with clamp (3) quantity, the leading section of connecting rod (4) and clamp (3) are hinged, central authorities at pot cover (2) are provided with a rotating disk (5), and rotating disk (5) can be stirred the pin joint swing of connecting rod (4) around itself and pot cover (2).

2, novel pressure cooker open and close cover structure according to claim 1, it is characterized in that, described pot cover (2) central authorities are fixed with a chassis (7) by pivot pin (6), the inner of each connecting rod (4) is hinged on the chassis (7) by pivot one (8) respectively, every connecting rod (4) is respectively equipped with a bar hole (4a), above-mentioned rotating disk (5) is provided with and equates with bar hole (4a) quantity and backing pin (5a) one to one that each backing pin (5a) is inserted in respectively in the bar hole (4a).

3, novel pressure cooker open and close cover structure according to claim 1, it is characterized in that, be fixed with brace (3a) on the described clamp (3), brace (3a) is hinged by pivot two (9) and connecting rod (4) outer end, be provided with flanging (3b) at brace (3a) sidepiece, a side of described connecting rod (4) is provided with the rib (4b) that is used to stop above-mentioned flanging (3b).

4, novel pressure cooker open and close cover structure according to claim 1, it is characterized in that, described clamp (3) is hinged on the outer end of connecting rod (4) by pivot two (9), be with a torsion spring (10) on pivot two (9), described torsion spring (10) two ends act on respectively on clamp (3) and the connecting rod (4).

5, according to claim 1 or 2 or 3 or 4 described novel pressure cooker open and close cover structures, it is characterized in that, be provided with a center torsion spring (11) between described rotating disk (5) and chassis (7), center torsion spring (11) is enclosed within on the pivot pin (6), and its two pin act on respectively on rotating disk (5) and chassis (7).

6, novel pressure cooker open and close cover structure according to claim 5, it is characterized in that, described on pot cover (2), be provided with one can be under the pot inner pressure effect only start (12) of lifting, described only start (12) can with the bayonet socket (5b) that is arranged on rotating disk (5) edge buckle mutually.

7, novel pressure cooker open and close cover structure according to claim 5, it is characterized in that, be fixed with on the described pot cover (2) and connecting rod (4) gag lever post (13) one to one, described gag lever post (13), leans with the brace (3a) of clamp (3) when turning to open position mutually at clamp (3).

8, novel pressure cooker open and close cover structure according to claim 5 is characterized in that, described clamp (3) is curved, and the edge of its radian and pot cover (2) and pot body (1) adapts; The cross section of clamp (3) is the U type, is provided with a planar annular (2a) at the edge of pot cover (2), and the edge of pot body (2a) is provided with an anti-edge (1a), and described clamp (3) is buckled in above-mentioned planar annular (2a) and anti-along on (1a).

9, novel pressure cooker open and close cover structure according to claim 5 is characterized in that, is evenly distributed with 2～6 connecting rods (4) on the described pot cover (2), and the end of every connecting rod (4) is hinged with a clamp (3) respectively.

10, novel pressure cooker open and close cover structure according to claim 5, it is characterized in that, be provided with a button (14) in the described rotating disk (5), button (14) is made up of the body of rod (14a) and plush copper (14b), on the body of rod (14a), be with compression spring (15), on rotating disk (5), be provided with the deep-slotted chip breaker (7c) that the body of rod (14a) that can supply button (14) enters.

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