CN211242829U - Caliper type pressure cooking appliance - Google Patents

Abstract

The utility model discloses a caliper type pressure cooking utensil belongs to the cooking appliances field, has solved among the prior art caliper type pressure cooking utensil and has interfered the problem that leads to closing the lid difficulty closing calliper when closing the lid, the utility model discloses a caliper type pressure cooking utensil, including the pot body and pot cover, the pot cover includes upper cover and inner cup, and the pot body is equipped with the buckling parts, and the upper cover is equipped with calliper that can fluctuate, and calliper can switch at the locking state of closure inner cup and buckling parts and the unblock state of release buckling parts, and the upper cover still is equipped with the stopper, and the stopper is located the stopper top, under the locking state, the come-up route of calliper is avoided to the stopper, under the unblock state, the stopper restricts the come-up stroke of calliper on the come-up route of. The limiting function of the limiting block is utilized, so long as the calipers are ensured not to interfere with the buckling parts in the locking direction when the calipers are positioned at the floating upper limit position, the calipers can be prevented from interfering with the buckling parts when the covers are closed, and the covers can be closed more smoothly.

Description

Caliper type pressure cooking appliance

[ technical field ] A method for producing a semiconductor device

The utility model relates to a cooking appliances field especially relates to caliper type pressure cooking utensil.

[ background of the invention ]

The clamp type pressure cooking utensil (such as a clamp type electric pressure cooker) in the prior art is characterized in that a pair of clamps capable of being opened and closed are arranged on a pot cover, when the pair of clamps are closed, an inner cover of the pot cover and a pot edge of a pot container (or a heat insulation cover) in the pot body are clamped by the clamps to realize locking, the pot container is released when the pair of clamps are opened to realize unlocking, relatively speaking, the cover opening and closing operation of the clamp type pressure cooking utensil is more convenient, and the defect that the cover opening and closing of the rotary buckle type pressure cooking utensil is difficult is overcome. Of course, such a clamp-type pressure cooking appliance also has disadvantages, such as: the caliper still floats from top to bottom along with the in-process that opens and shuts, needs to control the unsteady stroke of caliper, otherwise the caliper can take place to interfere with the pot edge of pot courage and can't close when closing the lid. The utility model discloses the problem that how to prevent to appear calliper interference when closing the lid promptly has studied.

[ Utility model ] content

The utility model aims to solve the technical problem that overcome prior art not enough and provide a caliper formula pressure cooking utensil, calliper interference appears when preventing to close the lid.

In order to solve the technical problem, the utility model adopts the following technical scheme:

caliper type pressure cooking utensil, including the pot body and pot cover, the pot cover includes upper cover and inner cup, the pot body is equipped with buckling parts, the upper cover is equipped with the calliper that can fluctuate, calliper can be at the closure the inner cup with the locking state and the release of buckling parts the unblock state of buckling parts switches, the upper cover still is equipped with the stopper, the stopper is located calliper top, under the locking state, the stopper is avoided the come-up route of calliper, under the unblock state, the stopper is in restrict on the come-up route of calliper the come-up stroke of calliper.

In the above caliper type pressure cooking appliance, in the unlocked state, the limit block limits a floating stroke of the caliper to h1, and in the locked state, the floating stroke of the caliper is h2, h1 < h 2.

In the above caliper type pressure cooking appliance, the caliper includes a caliper arm and a caliper body connected to the caliper arm, and the stopper stops the caliper arm to limit a floating stroke of the caliper.

In the caliper type pressure cooking appliance, the caliper bodies are arranged on two sides of the caliper arms in pairs, and the upper cover is provided with at least one limiting block corresponding to each of the two sides of the caliper arms.

In the above caliper type pressure cooking appliance, the stopper has a guide surface inclined from high to low toward the caliper unlocking direction and transitionally connected to a bottom surface of the stopper.

In the above-mentioned caliper type pressure cooking appliance, the upper cover is further provided with an elastic member for providing downward elastic force to the caliper.

In the above caliper type pressure cooking appliance, the caliper is provided with a guide hole, the upper cover is provided with a guide post penetrating through the guide hole, and the elastic member is mounted on the guide post.

In the above-mentioned caliper type pressure cooking utensil, the upper cover with be equipped with elasticity pretension piece between the inner cup, elasticity pretension piece is right to pot body direction the inner cup applys the elasticity pretightning force.

In the above-mentioned clamp type pressure cooking utensil, the elastic preload member includes a push rod and an elastic element, the push rod and the elastic element are installed inside the upper cover, and the push rod abuts against the inner cover under the action of the elastic element.

In the above caliper type pressure cooking appliance, the upper cover includes a lining cover and a surface cover covering above the lining cover, the caliper is mounted on the lining cover, and the lining cover and/or the surface cover are provided with the limiting blocks.

The utility model has the advantages that:

the utility model provides an among the caliper type pressure cooking utensil, be in the unblock state when calliper, the stopper restricts the come-up stroke of calliper on the come-up route of calliper, has injectd calliper unsteady upper limit position under the unblock state, utilizes the limiting displacement of stopper, as long as guarantee calliper not interfere with the buckling parts on its locking direction when being in unsteady upper limit position, calliper and buckling parts interfere when just can preventing to close the lid, make and close the lid more smooth and easy.

Caliper locking state mean that inner cup edge and buckling parts are spacing by calliper in the direction of height, cooking utensil starts after the heating, the inner cup receives the culinary art pressure effect and upwards floats, and then promotes the calliper come-up, because the stopper avoids the come-up route of calliper under calliper locking state, allow the calliper come-up until with the buckling parts straining, also can not contact with the stopper after the calliper come-up moreover, withstand the stopper after avoiding the calliper come-up and lead to the upper cover to take place deformation.

Further, under the unlocking state of the caliper, the limit block limits the upward floating stroke of the caliper to be h1, and under the locking state, the upward floating stroke of the caliper is h2, and h1 is smaller than h 2. The floating stroke h1 refers to the floating displacement generated when the caliper floats upwards at the position completely falling until the caliper abuts against the limiting block, and the floating stroke h2 refers to the floating displacement generated when the caliper floats upwards at the position completely falling until the caliper is fastened with the fastening part; in the scheme, h1 < h2 is defined, namely: the unable come-up of calliper under the unblock state is to the position when with the buckling parts fastening, just so close the condition that calliper and buckling parts interfered when just can not appear, and the stroke of calliper come-up h2 is then allowed to the locking state to guarantee that calliper can realize pressure cooking with the buckling parts fastening.

Furthermore, calliper arm both sides set up in pairs calliper body, on cover and correspond calliper arm both sides respectively set up at least one stopper. Under the condition that sets up two calliper bodies, guarantee to correspond two calliper body positions on the calliper arm and obtain unanimous spacing effect, avoid calliper arm both sides atress inconsistent to lead to calliper slope and influence to close and cover the effect.

Further, the limiting block is provided with a guide surface, and the guide surface inclines from high to low towards the unlocking direction of the caliper and is connected to the bottom surface of the limiting block in a transition mode. In the process of switching the caliper from the locking state to the unlocking state, if the caliper slowly falls back or the falling displacement is insufficient, the caliper may interfere with the limiting block in the unlocking direction. In this scheme, the stopper is provided with the spigot surface, makes calliper can fall back along the spigot surface in the unblock process, avoids calliper to take place to interfere with the stopper on its unblock direction.

Furthermore, the upper cover is also provided with an elastic piece for providing downward elasticity for the calipers. The elastic force applied by the elastic piece to the caliper can ensure that the caliper stably floats and assist the caliper to fall back and reset in the unlocking process of the caliper.

Furthermore, be equipped with the guiding hole on the calliper, the upper cover has and runs through the guiding post of guiding hole, the elastic component is installed on the guiding post. The guide column sets a floating path of the calipers so that the calipers smoothly float up and down; the guide hole sets for the unblock route and the locking route of calliper, and the guide calliper moves along the guide hole direction, realizes smoothly opening and shutting the lid.

Furthermore, an elastic pre-tightening piece is arranged between the upper cover and the inner cover, and applies elastic pre-tightening force to the inner cover in the direction of the pot body. No matter the pressure cooking appliance is in a pressure state or a non-pressure state, the inner cover always keeps the movement trend towards the direction of the pot body, but the pressure generated during cooking can overcome the elastic pretightening force to push the inner cover to float, the upper cover only bears the reaction force of the elastic pretightening piece, and the inner cover cannot be directly acted on the upper cover when being pressed, so that the inner cover cannot freely shake in the pot cover under the premise of meeting the floating of the inner cover, the mounting stability is good, and the user experience is improved; secondly, rely on the elasticity pretightning force of applying on inner cup, make inner cup and the contact of pot body oral area inseparabler, sealed effect is better.

These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The invention will be further explained with reference to the drawings:

fig. 1 is a schematic cross-sectional view of a caliper-type pressure cooking appliance according to an embodiment of the present invention;

FIG. 2 is a top view of a liner cover according to an embodiment of the present invention;

FIG. 3 is a top view of a caliper according to an embodiment of the present invention;

fig. 4 is a partial schematic view of a caliper-type pressure cooking appliance in an unlocked state of the caliper according to an embodiment of the present invention;

fig. 5 is a partial schematic view of a caliper-type pressure cooking appliance in an embodiment of the present invention in a caliper locked state;

fig. 6 is a schematic cross-sectional view of a caliper-type pressure cooking appliance according to an embodiment of the present invention;

fig. 7 is a partially enlarged view of a portion a of fig. 6.

Reference numerals:

100 pan body, 110 pan liner and 120 buckling part;

200 pot covers, 210 lining covers, 211 mounting holes, 220 inner covers, 230 surface covers, 240 limiting blocks, 241 guide surfaces, 250 guide posts and 260 sleeves;

300 turntables and 310 variable diameter tracks;

400 calipers, 410 caliper arms, 411 guide holes, 420 caliper bodies, 421 upper caliper plates, 422 lower caliper plates;

500 motor, 510 drive gear;

600 helical springs;

700 push rods, 710 elastic elements.

[ detailed description ] embodiments

The utility model provides a caliper type pressure cooking utensil, which comprises a pot body and a pot cover, wherein the pot cover comprises an upper cover and an inner cover, the pot body is provided with a buckling part, the upper cover is provided with calipers capable of floating up and down, the calipers can be switched between a locking state for locking the inner cover and the buckling part and an unlocking state for releasing the buckling part, the upper cover is also provided with a limiting block, the limiting block is positioned above the calipers, under the locking state, the limiting block avoids a floating path of the calipers, under the unlocking state, the limiting block limits the floating stroke of the calipers on the floating path of the calipers, namely limits the floating upper limit position of the calipers under the unlocking state, and utilizes the limiting function of the limiting block, so long as the calipers are ensured not to interfere with the buckling part in the locking direction when being positioned at the floating upper limit position, the calipers can be prevented from interfering with, the cover can be closed more smoothly.

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 and 2, in an embodiment of the present invention, a caliper type pressure cooking device is provided, which includes a pot body 100 and a pot cover 200, the pot cover 200 includes an upper cover and an inner cover 220, the pot body 100 is provided with a fastening portion 120, the upper cover is provided with a caliper 400 capable of floating up and down, and the caliper 400 can be switched between a locking state for locking the inner cover 220 and the fastening portion 120 and an unlocking state for releasing the fastening portion 120. Specifically, the method comprises the following steps:

the pot body 100 of the embodiment is provided with the pot container 110, the mouth of the pot container 110 extends outward to form a flange, the flange forms a buckling part 120, the caliper 400 locks the flange of the pot container 110 and the edge of the inner cover 220 in a locking state, and the structure is commonly used for the micro-pressure electric cooker.

The upper cover of the present embodiment includes a liner cover 210 and a face cover 230, and the caliper 400 is provided in pairs on the liner cover 210. Referring to fig. 3, the caliper 400 includes a caliper arm 410 and a caliper body 420 connected to the caliper arm 410, the caliper body 420 including an upper caliper plate 421 and a lower caliper plate 422, the caliper 400 restraining the edge of the fastening part 120 and the inner cap 220 between the upper caliper plate 421 and the lower caliper plate 422 in a locked state. Caliper arm 410 and caliper body 420 can be integrated into one piece's metalwork, and the difficult deformation of intensity height, perhaps caliper body 420 is the metalwork, and caliper arm 410 is the working of plastics, and the two is moulded plastics and is connected, reduces calliper manufacturing cost guaranteeing with the prerequisite of inner bag lock intensity.

The lining cover 210 is further provided with an opening and closing cover driving device, the opening and closing cover driving device comprises a rotary disc 300 and a motor 500, the center of the rotary disc 300 is rotatably connected to the lining cover 210, the calipers 400 on the two sides of the rotary disc 300 are respectively provided with a reducing track 310, the distance between the reducing track 310 and the rotating center of the rotary disc 300 is changed along the reducing track 310, for example, the reducing tracks are arranged in an involute manner, a driving pin is arranged on the caliper arm 410 and inserted into the reducing track 310 and can slide in the reducing track 310, therefore, the rotating motion of the rotary disc 300 can be converted into the linear reciprocating motion of the driving pin through the reducing track 310, and then the calipers 400 are driven to be switched between a locking state and an unlocking. The turntable 300 is meshed with the motor 500 through the transmission gear 510, and the clamp type pressure cooking appliance controls the motor 500 to act according to a set program, so that the cover can be automatically opened and closed. Of course, the above-mentioned cover opening and closing driving device is only exemplary, and other driving manners exist in this embodiment, such as using a cam mechanism and a link mechanism instead of a rotating disc, which are well known to those skilled in the art, and the description of this embodiment is omitted. In addition, a motor can be omitted in the cover opening and closing driving device, a rotating handle is connected to the rotary disc, and the cover opening and closing operation is manually performed by a user.

The working principle of the caliper type pressure cooking appliance of the embodiment is as follows:

referring to fig. 4, after the pot cover 200 is covered on the pot body 100, the caliper 400 is in an unlocked state, and the cover opening and closing driving device drives the caliper 400 to translate in the locking direction; referring to fig. 5, when the cover is closed in place, the edge of the inner cover 220 and the fastening portion 120 are located between the upper caliper plate 421 and the lower caliper plate 422, and the fastening portion 120 and the edge of the inner cover 220 are in sealing engagement through an inner cover sealing ring. After the cooking cavity is pressed upwards, the pressure acts on the pot cover 200 to push the inner cover 220 to float upwards, and because the inner cover 220 and the buckling part 120 are limited by the clamp 400, the inner cover 220 can also push the clamp 400 to float upwards until the lower clamp plate 422 of the clamp 400 is fastened with the buckling part 120, so that the clamp type pressure cooking appliance maintains a preset pressure state in the cooking process. After the cooking is finished and the cover is opened, the cover opening and closing driving device drives the cover opening and closing driving device to translate towards the unlocking direction, the lower clamping plate 422 releases the buckling part 120, and the pot cover 200 can be opened.

Based on the above working principle, when the lid 200 is closed to the pot body 100, the air pressure in the pot suddenly increases or the inner lid sealing ring and the pot liner 110 rub each other to possibly cause the inner lid 220 to have a certain floating amount, then the caliper 400 will float upwards accordingly, if the floating stroke of the caliper 400 causes the upper surface of the lower caliper plate 422 to be level or higher than the bottom surface of the fastening portion 120, when the opening and closing lid driving device drives the caliper 400 to move horizontally in the locking direction, the lower caliper plate 422 of the caliper 400 will interfere with the fastening portion 120 to prevent the caliper 400 from moving. Referring to fig. 4 and 5, in this embodiment, the liner cover 210 is further provided with a limit block 240, the limit block 240 is located above the caliper 400, in the unlocked state of the caliper 400, the limit block 240 limits the floating stroke of the caliper 400 on the floating path of the caliper 400, and defines the floating upper limit position of the caliper 400 in the unlocked state, when the caliper 400 is in the floating upper limit position, the upper surface of the lower caliper plate 422 is lower than the bottom surface of the fastening portion 120, so as to ensure that the caliper 400 does not interfere with the fastening portion 120 in the locking direction when the caliper 400 is in the floating upper limit position, thereby preventing the caliper 400 from interfering with the fastening portion 120 when closing the cover, and ensuring that the closing of the cover is smoother. Under calliper 400's locking state, stopper 240 avoids calliper 400's the come-up route, allows calliper 400 to go up to float until with buckling parts 120 fastening, also can not contact with stopper 240 after calliper 400 goes up to float in addition, and it leads to the upper cover to take place to deform to avoid calliper 400 to push up stopper 240 after floating.

The stopper 240 of the present embodiment is integrally formed on the liner cover 210, and in other embodiments not shown, the stopper may be independently assembled on the liner cover.

Preferably, in the present embodiment, in the unlocked state of the caliper 400, the limit block 240 limits the floating stroke of the caliper 400 to h1, and in the locked state of the caliper 400, the floating stroke of the caliper 400 is h2, and h1 < h 2.

The floating stroke h1 is a floating displacement generated when the caliper 400 floats upwards to abut against the stopper 240 when falling completely, and the floating stroke h1 of the present embodiment is a distance between the upper surface of the caliper arm 410 and the bottom surface of the stopper 240 when the caliper 400 is in the locked state.

The floating stroke h2 is a floating displacement amount generated when the caliper 400 floats upward at a position where it completely falls until it is fastened to the fastening portion 120.

In the present embodiment, h1 < h2 is defined, that is: the caliper 400 cannot float to the fastening position of the fastening portion 120 in the unlocked state, so that the interference between the caliper 400 and the fastening portion 120 cannot occur when the cover is closed, and the caliper 400 is allowed to float h2 in the locked state, so that the caliper 400 can be fastened with the fastening portion 120 to realize pressure cooking.

Referring to fig. 2 and 3, in an embodiment of the present invention, the two sides of the caliper arm 410 are provided with the caliper body 420 in pairs, so as to ensure the locking strength of the caliper 400 to the pot container 110 in the locking state, and ensure the reliability of the lid closing. The lining cover 210 is provided with at least one limiting block 240 corresponding to two sides of the caliper arm 410, as shown in fig. 2, the upper side of the caliper arm 410 is provided with a limiting block 240 corresponding to two sides of the caliper body 420, so that the caliper arm 410 is ensured to obtain a consistent limiting effect corresponding to two positions of the caliper body 420, and the phenomenon that the caliper 400 is inclined due to inconsistent stress on two sides of the caliper arm 410 to affect the cover closing effect is avoided.

Referring to fig. 4 and 5, in an embodiment of the present invention, the stopper 240 has a guide surface 241, and the guide surface 241 is inclined from high to low toward the unlocking direction of the caliper 400 and is transitionally connected to the bottom surface of the stopper 240. The caliper arm 410 can fall back along the guide surface 241 in the unlocking process, and the interference between the caliper 400 and the limiting block 240 in the unlocking direction is avoided.

Referring to fig. 3 to 5, in an embodiment of the present invention, an elastic member for providing downward elastic force to the caliper 400 is further provided on the pad cover 210. The elastic force applied to caliper 400 by the elastic member can ensure that caliper 400 floats smoothly and assist caliper 400 to fall back and reset during the unlocking of caliper 400.

The present embodiment is preferable: the clamp arm 410 is provided with a guide hole 411, the upper cover is provided with a guide post 250 penetrating through the guide hole 411, the elastic member is preferably a coil spring 600, the coil spring 600 is sleeved on the guide post 250, the upper end of the coil spring 600 is stopped by a limit gasket or a screw, and the lower end of the coil spring 600 acts on the clamp arm 410 through a sleeve 260. The guide posts 250 set a floating path of the caliper 400 so that the caliper 400 smoothly floats up and down; the guide hole 411 is formed as a kidney-shaped hole along the translational movement direction of the caliper 400, so that an unlocking path and a locking path of the caliper 400 are set, the caliper 400 is guided to move along the direction of the guide hole 411, and smooth opening and closing of the cover is realized.

The utility model discloses an in the embodiment, the face is covered and is corresponded calliper top position and set up the stopper, and stopper and face cover make an organic whole structure, also can independently assemble the face and cover. Under calliper locking state, the stopper avoids the come-up route of calliper, and under calliper unblock state, the stopper restricts the come-up stroke of calliper on the come-up route of calliper.

In one embodiment of the present invention, the pot body includes a heat insulation and a pot liner accommodated in the heat insulation cover, and the opening of the heat insulation cover extends outward to form a flange to form a buckling portion, which is commonly used in electric pressure cookers.

Referring to fig. 6 and 7, in an embodiment of the present invention, on the basis of any of the above embodiments, an elastic pre-tightening member is disposed on the upper cover, and applies an elastic pre-tightening force to the inner cover 220 in the direction of the pot body. The inner cover of the floating arrangement has obvious shaking feeling in use, a user who cannot know the condition easily doubts the product quality, and the tightness between the inner cover and the cooker liner is weakened, so that the pressure control is not facilitated. In the embodiment, the elastic pretightening force is applied to the inner cover 220 in the direction of the pot body through the elastic pretightening piece on the upper cover, no matter the pressure cooking appliance is in a pressure state or a non-pressure state, the inner cover 220 always keeps the movement trend towards the direction of the pot body, but the pressure generated in the cooking process can overcome the elastic pretightening force to push the inner cover 220 to float upwards, the upper cover only bears the reaction force of the elastic pretightening piece, the inner cover 220 is pressed and cannot directly act on the upper cover, and the design ensures that the inner cover 220 cannot randomly shake in the pot cover on the premise of meeting the floating of the inner cover 220, has good installation stability; secondly, rely on the elasticity pretightning force of exerting on inner cup 220, make inner cup 220 inseparabler with the contact of pot body oral area, sealed effect is better.

Preferably, the elastic preload member of the present embodiment includes a top bar 700 and an elastic element 710, the inner side of the lining cover 210 is provided with a mounting hole 211, the top bar 700 and the elastic element 710 are installed in the mounting hole 211, one end of the elastic element 710 abuts against the bottom wall of the mounting hole 211, the other end abuts against the top bar 700, after the top bar 700 is installed, the pre-tightening state of the elastic element 710 is maintained, so as to provide an acting force of the top bar 700 towards the inner cover 220, and the top bar 700 abuts against the inner cover 220 under the action of the elastic element 710. The elastic member 710 of the present embodiment may be a rubber spring or a coil spring.

The utility model discloses an in the embodiment, the elasticity pretension piece adopts the elastic gasket, and the elastic gasket can be the gasket of rubber gasket, silica gel gasket or other elasticity materials, and the elastic gasket is fixed on the lining lid medial surface, and the inner cup installation back, the elastic gasket offsets and produces certain decrement with the inner cup to this exerts the elasticity pretightning force to the inner cup to pot body direction. The elastic preload piece of the embodiment has the advantages of simple structure and low implementation cost.

In an embodiment of the present invention, the elastic preload member is mounted on the inner cover and abuts against the inner side surface of the upper cover, for example: the elastic pre-tightening piece comprises an ejector rod and a spring, the inner cover extends out of the mounting column towards the upper cover, the ejector rod is sleeved on the mounting column, the spring is mounted between the ejector rod and the mounting column, after the inner cover is assembled to the upper cover, the upper end of the ejector rod is abutted to the inner side face of the upper cover, the spring is enabled to generate a certain compression amount, and the elastic force generated by the compression of the spring directly acts on the inner cover to pre-tighten the inner cover.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (10)

1. Caliper type pressure cooking utensil, including the pot body and pot cover, the pot cover includes upper cover and inner cup, the pot body is equipped with buckling parts, the upper cover is equipped with the calliper that can fluctuate, calliper can be at the closure the inner cup with the locking state and the release of buckling parts the unblock state of buckling parts switches, its characterized in that, the upper cover still is equipped with the stopper, the stopper is located calliper top, under the locking state, the stopper avoids the come-up route of calliper, under the unblock state, the stopper is in limit on the come-up route of calliper the come-up stroke of calliper.

2. The pressure cooking jaw of claim 1, wherein said stopper limits a float travel of said jaw to h1 in said unlocked state and h2 in said locked state, h1 < h2 in said locked state.

3. The pressure cooking jaw of claim 1, wherein said jaw includes a jaw arm and a jaw body connected to said jaw arm, said stop stopping said jaw arm to limit a float travel of said jaw.

4. The pressure cooking utensil of claim 3 wherein said caliper bodies are arranged in pairs on opposite sides of said caliper arms and said upper cover has at least one stop block on each side of said caliper arms.

5. The pressure cooking utensil of one of the claims 1 to 4, wherein the stopper has a guide surface that slopes from high to low toward the caliper unlocking direction and is transitionally connected to the bottom surface of the stopper.

6. The pressure cooking appliance of the caliper type according to one of claims 1 to 4, wherein said upper cover is further provided with an elastic member for providing a downward elastic force to said caliper.

7. The pressure cooking jaw of claim 6, wherein said jaw has a guide hole, said upper cover has a guide post passing through said guide hole, and said elastic member is mounted on said guide post.

8. The pressure-cooking jaw apparatus according to one of claims 1 to 4, wherein an elastic preload member is provided between the upper lid and the inner lid, and the elastic preload member applies an elastic preload to the inner lid in a direction toward the pot body.

9. The clamp-type pressure cooking appliance according to claim 8, wherein said elastic preload member includes a plunger and an elastic member, said plunger and said elastic member being mounted inside said upper lid, said plunger being urged against said inner lid by said elastic member.

10. The pressure cooking appliance of one of claims 1 to 4, wherein said upper cover comprises a lining cover and a face cover covering over said lining cover, said caliper is mounted on said lining cover, and said stopper is provided on said lining cover and/or said face cover.

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