CN209733495U - pressure cooking appliance - Google Patents

Abstract

The utility model discloses a pressure cooking utensil belongs to kitchen cooking appliances technical field, has solved among the prior art pressure cooking utensil hot state and has closed the more hard technical problem of lid, the utility model provides a pressure cooking utensil, including the pot body and pot cover, the pot cover includes upper cover and detachable inner cup, interior cover is equipped with exhaust hole and float valve, the float valve is including the float of fluctuation with the switching exhaust hole, install the piece that blocks in the inner cup, the piece has the backstop first position on the float's the route of floating and dodges the second position in the route of floating of float, it is so that to make to block to be in the first position under the normality the float keeps opening the state in exhaust hole.

Description

Pressure cooking appliance

[ technical field ] A method for producing a semiconductor device

The utility model relates to a kitchen cooking utensil technical field especially relates to pressure cooking utensil.

[ background of the invention ]

current pressure cooking utensil includes the pot body and pot cover, and the pot cover lid closes and forms sealed culinary art chamber in order to realize pressure cooking on the pot body, and when the pot cover closed under hot state, great pressure can be formed in the culinary art intracavity, causes the user to use and needs the great strength just can accomplish the lid of pot cover and close, has reduced user's use from this and has experienced.

[ Utility model ] content

The utility model aims to solve the technical problem that overcome prior art not enough and provide a pressure cooking utensil, can make the user close under the hot state and cover more laborsavingly, promote the user and use experience.

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

Pressure cooking utensil, including the pot body and pot cover, the pot cover includes upper cover and detachable inner cup, interior epaxial exhaust hole and the float valve of being equipped with of covering, the float valve is including the float of fluctuation with the switching exhaust hole, interior epaxial stopper of installing, the stopper has the backstop first position on the float's the route and dodges the second position of the float's the route of floating, the stopper is in the first position so that the state in exhaust hole is kept opening to the float.

In the pressure cooking appliance, the blocking member is installed on the inner cover in a sliding mode in a translation mode, the inner cover is provided with a resetting member, and the resetting member drives the blocking member to be kept at the first position.

In the above pressure cooking appliance, an exhaust control member is provided on the upper cover, and the exhaust control member is used for controlling the blocking member to move, so that the blocking member is switched to the second position.

In the pressure cooking utensil, the upper cover is provided with a movable locking piece, the pot cover is locked with the pot body through the locking piece, and when the inner cover is matched with the upper cover, the locking piece is unlocked and closed with the pot body, and the blocking piece is located at the second position.

In the pressure cooking appliance, the inner cover is further provided with a pressure limiting valve, a valve seat and a sliding plate which slides on the valve seat in a translation manner, and the blocking piece is a baffle plate which extends from the sliding plate to the float valve.

In the pressure cooking appliance, the upper cover is provided with a valve cavity, the pressure limiting valve is matched with the valve cavity when the detachable inner cover is matched with the upper cover, the exhaust control part is provided with a push rod, the sliding plate is provided with a pushing part, and the push rod can stretch in the valve cavity to act on the pushing part.

In the above pressure cooking appliance, the pressure limiting valve includes an exhaust pipe and a weight buckled on the exhaust pipe, the sliding plate is provided with a top part for jacking the weight, the top part is formed by the top surface of the sliding plate protruding upwards, the top part is provided with a guide inclined surface for jacking the weight, and the guide inclined surface inclines from high to low towards the center direction of the pot cover.

in the above pressure cooking appliance, the valve seat and the slide plate are respectively provided with a through hole through which the exhaust pipe sequentially penetrates, and the aperture of the through hole formed in the slide plate is larger than the outer diameter of the exhaust pipe, so that the slide plate can slide in a translational manner relative to the exhaust pipe.

In the pressure cooking utensil, the top surface of the detachable inner cover is also provided with a sealing ring which is matched with the valve cavity to form a sealing cavity.

In the above pressure cooking appliance, the locking member is a locking ring, a caliper or a locking cover.

The utility model has the advantages that:

When the blocking piece in the pressure cooking appliance is positioned at the second position of the floating path avoiding the floater, the floater floats upwards to close the exhaust hole along with the gradual increase of the pressure in the cooking cavity, so that pressure cooking is realized; the stopper is in the first position of stopper on the route that floats of float under the normality, and so, the stopper can restrict the come-up distance of float to make the float can open the exhaust hole exhaust, and then reduce the pressure in the culinary art intracavity, make the pot cover more laborsaving in closing under the hot state, promote user's use and experience.

The blocking piece is installed on the inner cover in a sliding mode in a translation mode, the inner cover is provided with a resetting piece, and the resetting piece drives the blocking piece to be kept at the first position. So design, the piece that resets can drive through self deformation that resets and stop the piece and keep at first position, compares other drive structures, and its reaction is faster, and the structure is also simpler, easily machine-shaping.

The top of the lifting part is formed by the upward protrusion of the top surface of the sliding plate, the top of the lifting part is provided with a guide inclined plane for jacking the heavy hammer, and the guide inclined plane inclines from high to low towards the center direction of the pot cover. By such design, the top part can smoothly jack the weight.

The upper cover is provided with a push rod and a driving mechanism, the driving mechanism pushes the sliding plate to slide through the push rod so as to enable the baffle plate to slide to a second position and enable the top to avoid the heavy hammer, and when the driving mechanism drives the push rod to move towards the direction far away from the sliding plate, the resetting piece drives the sliding plate to reset. By the design, the driving mechanism drives the push rod to push the sliding plate to move under the locking state of the locking piece, so that the top part avoids the heavy hammer, the heavy hammer falls back to the upper end outlet of the sealed exhaust pipe under the action of self weight, the effect of pressure cooking in the sealed cooking cavity is realized, and meanwhile, the baffle plate is positioned at the second position, so that the floater floats upwards to close the exhaust hole, and the pressure cooking is realized; in addition, when needs exhaust pressure release, accessible actuating mechanism drive push rod moves towards the direction of keeping away from the slide to make the push rod keep away from dodging the slide, and then make the extension of piece that resets and drive the slide motion and reset, make top jack-up weight and make the baffle be located the first position, realize exhaust hole and blast pipe pressure release exhaust.

Through holes for the exhaust pipes to sequentially penetrate are respectively formed in the valve seat and the sliding plate, and the aperture of the through hole formed in the sliding plate is larger than the outer diameter of the exhaust pipe, so that the sliding plate can horizontally slide relative to the exhaust pipe. So design, can carry on spacingly through the slip distance of blast pipe to the slide to avoid jack-up portion transition to slide and lead to unable jack-up weight, can also save extra limit structure simultaneously.

The valve seat is also provided with a through hole for the floater to penetrate through, the upper cover is provided with a containing cavity for containing the heavy hammer, the top surface of the inner cover is also provided with a sealing ring which is matched with the containing cavity to form a sealing cavity, and the valve seat and the sliding plate are positioned in the sealing cavity. So design can make the structure of inner cup compacter, can guide again by outside exhaust hole and the exhaust pipe exhaust steam discharge pot body, avoids steam to arrange to cause the filth to other parts of pot cover.

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 an exploded view of a pressure cooking appliance in a preferred embodiment of the present invention;

FIG. 2 is a schematic structural view of the preferred embodiment of the present invention in which the inner lid is covered on the pot body;

FIG. 3 is a schematic view of the explosion structure of the inner lid in the preferred embodiment of the present invention;

FIG. 4 is a schematic view of the assembly structure of the liner cover and the inner cover in the unlocked state of the locking element according to the preferred embodiment of the present invention;

FIG. 5 is a sectional view of the lid in the unlocked state of the locking member according to the preferred embodiment of the present invention;

FIG. 6 is a schematic structural view of the locking member of the preferred embodiment of the present invention when the top of the locking member is lifted up to jack the weight in the unlocked state;

FIG. 7 is a schematic view of the assembly structure of the liner cover and the inner cover in the locking state of the locking element according to the preferred embodiment of the present invention;

FIG. 8 is a sectional view of the lid in a locked state of the locking member according to the preferred embodiment of the present invention;

Fig. 9 is a schematic structural view illustrating the lifting of the locking member when the top portion of the locking member is lifted to avoid the weight in the locked state according to the preferred embodiment of the present invention.

reference numerals:

100. A pan body; 200. a pot cover; 210. an upper cover; 211. a lining cover; 2111. a locking member; 212. an outer cover; 213. A push rod; 2131. a vertical rod; 2132. a horizontal bar; 214. a cavity; 300. a float valve; 310. a valve body; 311. a float; 400. a turntable; 410. a drive slot; 220. an inner cover; 221. a blocking member; 2210. a bevel; 222. a seal ring; 411. a guide groove; 500. an exhaust pipe, 600 and a heavy hammer; 610. a hollow cavity; 611. A sealing plug; 700. a valve seat; 710. a guide post; 711. perforating; 800. a slide plate; 810. starting the top; 8101. A guide slope; 811. a lower push plate; 812. a pushing part; 813. a slider; 900. a reset member.

[ detailed description ] embodiments

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 to 9, the pressure cooking appliance in the preferred embodiment includes a pot body 100 and a pot cover 200, the pot cover 200 covers the pot body 100 to form a cooking cavity, the pot cover 200 includes an upper cover 210 and an inner cover 220 detachably mounted on the upper cover 210, the upper cover 210 includes a lining cover 211 and an outer cover 212, a locking element 2111 is provided on the lining cover 211, the locking element 2111 is a caliper, and the upper cover 210 is further provided with a driving mechanism for driving the caliper to open and close to lock or unlock the caliper and the pot body 100. Specifically, the method comprises the following steps: the driving mechanism drives the calipers to perform translational motion in the radial direction of the pot cover 200, so that the calipers can be switched back and forth between a locking state for locking the inner cover 220 and the pot body 100 (a heat preservation cover or an inner container of the pot body 100) and an unlocking state for releasing the pot body 100; the driving mechanism of the embodiment comprises a motor (not shown in the figure) and a turntable 400, wherein the turntable 400 is installed at the center of the lining cover 211, a driving gear is installed on an output shaft of the motor, and the driving gear is in meshing transmission with the turntable 400; the rotating disc 400 is symmetrically provided with two driving grooves 410 by the rotation center, one end of the caliper is provided with a driving column, the driving column is inserted into the driving groove 410 and can slide along the driving groove 410, the rotation motion of the rotating disc 400 can be converted into the radial linear reciprocating motion of the driving column through the driving groove 410, namely the linear reciprocating motion of the caliper is driven, as the rotating disc 400 is driven by a motor to rotate in the embodiment, the electric cover opening and closing is realized, the user experience is enhanced, in other embodiments, a handle can be also arranged on the pot cover 200 and is in transmission connection with the rotating disc 400, so that the manual cover opening and closing is realized; according to the concept of the above solution, a driving structure such as a cam and a gear may be used instead of the turntable 400, and the specific arrangement manner is well known to those skilled in the art, and the detailed description of this embodiment is omitted.

The inner lid 220 in this embodiment is further provided with an air outlet and a float valve 300, the float valve 300 comprises a valve body 310 mounted on the bottom surface of the inner lid 220 and a float 311 floating up and down to open and close the air outlet, the float 311 penetrates through the valve body 310 and the air outlet, a blocking member 221 is mounted on the inner lid 220, the blocking member 221 has a first position blocking a floating path of the float 311 and a second position avoiding the floating path of the float 311, and the blocking member 221 is in the first position in an unlocked state of the locking member 2111, so that the blocking member 221 limits a floating distance of the float 311 to enable the float 311 to open the air outlet to exhaust air, thereby reducing pressure in the cooking cavity, saving labor for closing the lid 200 in a hot state, and improving user experience; when the locking part 2111 is in a locked state and pressure cooking is performed, the blocking member 221 is in the second position of avoiding the floating path of the float, and at this time, as the pressure in the cooking cavity is gradually increased, the float 311 floats upwards until the vent hole is closed, so that pressure cooking is realized.

The blocking member 221 in this embodiment is installed on the inner lid 220 in a sliding manner, the inner lid 220 is provided with a resetting member 900, and the resetting member 900 drives the blocking member 221 to maintain the first position in the unlocked state of the locking member 2111, so that the exhaust hole maintains the open state. Specifically, the top surface of the inner cover 220 is further provided with a valve seat 700 and a sliding plate 800, the valve seat 700 is fixed on the inner cover 220 by screws and nuts, the sliding plate 800 can reciprocate on the valve seat 700 along the radial direction of the inner cover 220, the reset piece 900 is installed between the sliding plate 800 and the valve seat 700, the reset piece 900 in the embodiment is a pressure spring or a silicone sleeve or a rubber sleeve, the reset piece 900 in the embodiment is preferably a pressure spring, the valve seat 700 is provided with a guide post 710 extending along the radial direction of the inner cover 220, the sliding plate 800 is provided with a lower push plate 811 extending downwards, the pressure spring is sleeved on the guide post 710 and abuts against the lower push plate 811, the blocking piece 221 is a baffle extending from the sliding plate 800 to the direction of the float valve 300, when the float 311 completely floats upwards, the distance H between the top surface of the float and the top surface of the inner cover 220 is greater than the distance. In the unlocked state of the locking element 2111, the reset element 900 can be compressed and then can be elongated and deformed along the direction of the guide post 710, and the slide plate 800 is driven to slide to drive the blocking element 221 to slide to the first position, at this time, the float 311 can only float up by half under the limiting action of the blocking element 221, so as to keep the state of opening the vent hole, and facilitate the thermal closing of the cover. The deformation drive slide plate 800 that resets through piece 900 self resets in this embodiment keeps at the state that resets, compares other drive structures, and its reaction is faster, and the structure is also simpler, easily machine-shaping.

Preferably, in this embodiment, the inner lid 220 is further provided with a pressure limiting valve, the pressure limiting valve includes an exhaust pipe 500 and a weight 600 buckled on the exhaust pipe 500, the exhaust pipe 500 is communicated with the cooking cavity, the sliding plate 800 is located below the weight 600, the sliding plate 800 is provided with a top part 810 for jacking the weight 600, the locking member 2111 is unlocked, the resetting member 900 drives the sliding plate 800 to be kept in a resetting state, the top part 810 jacks the weight 600 to incline the weight 600, and further the upper end outlet of the exhaust pipe 500 is opened, so that when the pot cover 200 is covered on the pot body 100, steam in the cooking cavity can be exhausted through both the exhaust hole and the exhaust pipe simultaneously to rapidly reduce the pressure in the cooking cavity, so that the hot closing is more labor-saving; meanwhile, the two structures of the blocking part 221 and the top part 810 can be driven to move by one sliding plate 800, so that the whole structure is simplified and is more compact.

The weight 600 in this embodiment is provided with a hollow cavity 610 with an open lower end and a sealing plug 611 arranged at the top of the hollow cavity 610 and inserted into the exhaust pipe 500, an avoiding space for accommodating the top 810 is arranged between the inner side of the hollow cavity 610 and the exhaust pipe 500, when the caliper is locked with the pot body 100, the pressure spring is compressed, the sliding plate 800 slides and drives the blocking piece 221 to slide to the second position, so that the float 311 completely floats upwards to close the exhaust hole, the top 810 is located in the avoiding space, and the weight 600 falls back under the action of self weight to make the sealing plug 611 block the upper end outlet of the exhaust pipe 500, thereby realizing pressure cooking.

specifically, the liner cover 211 in this embodiment is provided with a push rod 213, which is an exhaust control element, the exhaust control element is used for controlling the action of the blocking element, so that the blocking element is switched to the second position, the turntable 400 is provided with a guide groove 411, the push rod 213 includes a vertical rod 2131 and a horizontal rod 2132, the upper end of the vertical rod 2131 is inserted into the guide groove 411 and can slide along the guide groove 411, the lower end of the vertical rod 2131 is connected with the horizontal rod 2132, the horizontal rod 2132 can push the sliding plate 800 to slide after moving radially outward, and the rotational motion of the turntable 400 can be converted into the radial linear reciprocating motion of the vertical rod 2131 through the guide groove 411, that is, the horizontal rod 2132 is driven to move. It should be noted that, when the turntable 400 rotates to drive the caliper to move radially inward through the driving groove 410, so that the caliper is locked with the pot body 100, the guiding groove 411 drives the push rod 213 to move radially outward, so as to move the horizontal rod 2132 toward the slide plate 800 and push the slide plate 800 to move radially outward, so as to move the blocking piece 221 to the second position, the top portion 810 enters the avoiding space to avoid the weight 600, and at the same time, the compression spring is compressed, at this time, the float 311 floats upwards to close the exhaust hole, the weight 600 falls back, and the upper end outlet of the exhaust pipe 500 is sealed, so as to implement pressure cooking (as shown in fig. 7 to fig. 9); when the turntable 400 rotates reversely, the driving groove 410 drives the caliper to move radially outward, so that the caliper is unlocked from the pot body 100, at this time, the guide groove 411 drives the push rod 213 to move radially inward, so that the horizontal rod 2132 moves in a direction away from the sliding plate 800, i.e., moves radially inward, at this time, the compression spring extends and drives the sliding plate 800 to move so that the sliding plate is maintained in a reset state, the blocking piece 221 moves to the first position, the top lifting portion 810 lifts the weight 600, exhaust of the exhaust hole and the exhaust pipe 500 is realized (as shown in fig. 4 to 6), and the cover is closed in a thermal state conveniently. In this embodiment, since the top 810 is located in the avoiding space when avoiding the weight 600, the overall structure can be further made more compact to reduce the radial size of the pot cover 200; in addition, since the push rod 213 is far from the slide plate 800 in the state that the caliper is unlocked from the pot body 100, interference between the slide plate 800 and the push rod 213 can be avoided when assembling the inner lid 220, thereby facilitating assembly of the inner lid 220. The locking piece is a locking ring, a caliper or a locking cover.

In order to improve the reliability of the push rod 213 pushing the slide plate 800, the slide plate 800 in this embodiment is provided with a push portion 812 extending upward at an end close to the push rod 213, and the horizontal rod 2132 drives the slide plate 800 to move by driving the push portion 812.

In order to make the top part 810 smoothly lift the weight 600, the top part 810 in this embodiment is formed by the top surface of the sliding plate protruding upward, the top part 810 is located on the connecting line of the center of the inner lid 220 and the center of the exhaust pipe 500, the top part 810 is provided with a guide inclined surface 8101 for lifting the weight 600, the guide inclined surface 8101 inclines from high to low toward the center of the inner lid 220, and the bottom of the inner side surface of the weight 600 is provided with a chamfer matching with the guide inclined surface 8101. Thus, the chamfer and the guiding inclined surface 8101 cooperate to further improve the smoothness of the top 810 for jacking up the weight 600.

In order to avoid the deviation caused by the sliding of the top 810 and the blocking member 221, in this embodiment, sliding grooves extending along the radial direction of the inner cap 220 are respectively formed on both sides of the valve seat 700 located on the lower push plate 811, and the sliding plate 800 is provided with a sliding block 813 inserted in the sliding grooves in a sliding manner. In this way, the slider 813 moves along the sliding groove, so as to guide the sliding plate 800 to slide along the radial direction of the inner lid 220, thereby ensuring that the lifting top 810 can lift the weight 600 to exhaust the exhaust pipe 500 and the stopper 221 is located at the first position to limit the float 311 in the unlocked state of the locking element 2111; meanwhile, the sliding groove can limit the sliding plate 800 in the vertical direction and the direction perpendicular to the sliding direction.

In order to further limit the sliding distance of the inner cover 220 in the radial direction of the sliding plate 800 and avoid the sliding plate 800 from sliding excessively, through holes for the exhaust pipe 500 to sequentially penetrate through are respectively arranged on the valve seat 700 and the sliding plate 800 in the embodiment, the bottom end of the exhaust pipe 500 penetrates through the sliding plate 800 and the valve seat 700 and then extends into the cooking cavity, and then the exhaust pipe is locked and fixed on the inner cover 220 through nuts. In this embodiment, the aperture of the through hole formed in the sliding plate 800 is larger than the outer diameter of the exhaust pipe 500, and the through hole formed in the sliding plate 800 is a slotted hole or a circular hole, so that the sliding plate 800 can slide in a translational manner relative to the exhaust pipe 500. Therefore, the sliding distance of the sliding plate 800 can be limited by the contact between the through holes on the sliding plate 800 and the exhaust pipe 500, so as to prevent the top 810 from sliding excessively to cause the weight 600 and the stopper 221 from sliding excessively to stop the float 311.

In the embodiment, the driving mechanism is used as a power source of the rotary disc 400, namely, exhaust and pressure relief are required, the driving mechanism needs to be started, in order to prevent the calipers from generating unlocking action due to the starting of the driving mechanism in the exhaust process, a rotation track of the rotary disc 400 in the opening process of the calipers is designed to be two-section, the two-section type rotation track sequentially comprises a first stroke and a second stroke, the pressure cooking appliance executes an uncovering procedure, the rotary disc 400 must firstly complete the first stroke, a push rod 213 is driven to move radially inwards in the first stroke to enable a pressure spring to push a sliding plate 800 to reset, at the moment, a top 810 jacks up a heavy punch 600, a blocking piece 211 limits a floater 311 to realize exhaust and pressure relief, the calipers keep a locking state, and prevent the calipers from generating potential safety hazard due to the unlocking action, after the calipers enter the second stroke, the carousel 400 could drive caliper and open, and the radial position of push rod 213 in the second stroke remains unchanged this moment, even blast pipe 500 and exhaust hole keep open the state, reduce the culinary art intracavity external differential pressure, reduce the resistance of uncapping, and caliper opens more smoothly. The specific scheme is as follows: the driving groove 410 on the turntable 400 comprises a first diameter-changing section and a first diameter-changing section, one end of the first diameter-changing section, which is connected with the first diameter-changing section, is closer to the center of the turntable than the other end of the first diameter-changing section, a transmission column of the caliper is in a first stroke when sliding relatively in the first diameter-changing section, at the moment, the turntable 400 cannot drive the caliper to move, the transmission column of the caliper is in a second stroke when sliding relatively in the first diameter-changing section, at the moment, the turntable 400 can drive the caliper to do linear reciprocating motion, and the unlocking or locking of the caliper is realized. The guide groove 411 comprises a second equal-diameter section and a second variable-diameter section, one end of the second variable-diameter section, which is connected with the second equal-diameter section, is closer to the center of the turntable than the other end of the second variable-diameter section, the vertical rod 2131 is in a first stroke when sliding relatively in the second variable-diameter section, and at the moment, the turntable 400 can drive the push rod 213 to reciprocate radially and is matched with a pressure spring to realize the opening and closing of the pressure limiting valve and the exhaust hole; the vertical rod 2131 has a second stroke when sliding relatively in the second equal-diameter section, at this time, the rotating disc 400 cannot drive the push rod 213 to act, and the pressure spring keeps the opening state of the pressure limiting valve and the exhaust hole. Therefore, in the cooking process, if the air exhaust and pressure relief are to be realized, only the rotary table 400 needs to be driven to complete the first stroke, at the moment, the caliper keeps the locking state, the pressure limiting valve and the exhaust hole are switched to be in the opening state from the closing state, and after the pressure relief is completed, the rotary table 400 is driven to complete the second stroke, so that the caliper is unlocked from the pot body 100, and meanwhile, the opening state of the pressure limiting valve and the exhaust hole is kept.

In this embodiment, the push rod 213 is linked with the driving mechanism for driving the caliper, so that the pressure limiting valve and the vent hole can be opened while the caliper is unlocked from the pot body 100, the pressure limiting valve and the vent hole can be closed while the caliper is locked with the pot body 100, and the slide plate is driven to move without arranging any other electromagnetic valve assembly driving mechanism, so that the structure is simple and compact.

In order to avoid the interference between the blocking member 221 and the floating float 311 when the air is exhausted and depressurized after the pressure cooking is finished, i.e. the blocking member 221 slides from the second position to the first position, in the embodiment, the top end of the float 311 is provided with a chamfer, and a side surface of the blocking member facing the float 311 when the blocking member is at the second position is an inclined surface 2210, and the inclined surface 2210 inclines from the first position to the second position from high to low, so that the blocking member smoothly retracts to the first position and stops the float 311 from floating.

the valve seat 700 in this embodiment further has a through hole 711 for the float 311 to pass through, the upper cover 210 is provided with a cavity 214 for accommodating the weight 600, the top surface of the cavity 214 is provided with an exhaust port communicated with the outside, the top surface of the inner cover 220 is further provided with a sealing ring 222 which is matched with the cavity 214 to form a sealed cavity, and the valve seat 700 and the sliding plate 800 are located in the sealed cavity. Thus, the steam exhausted from the exhaust pipe 500 and the exhaust hole can be guided to be exhausted out of the pot body 100, and the steam is prevented from being exhausted to other parts of the pot cover 200 to cause dirt.

It can be understood that, in this embodiment, the guiding inclined plane of the top portion is an inclined plane inclined from high to low in a direction away from the center of the inner lid, the bottom of the outer side surface of the weight is provided with a chamfer matched with the guiding inclined plane, when the pressure spring is in a normal state, the pressure spring drives the top portion to be away from the weight, so that the top portion is located outside the weight to avoid the weight, one end of the second reducing section of the guiding groove connected with the second equal-diameter section is far away from the center than the other end of the second reducing section, the vertical rod is in a first stroke when sliding relatively in the second reducing section, at this time, the rotary disc can drive the push rod to reciprocate radially, the caliper is in a locking state, the vertical rod slides in the second reducing section in a direction close to the second equal-diameter section, at this time, the push rod pushes the pushing portion radially outward, so that the top portion is jacked, the pressure limiting, the exhaust and pressure relief are realized; when the vertical rod slides in the second reducing section towards the direction far away from the second equal-diameter section, the push rod moves inwards in the radial direction, the sliding plate is reset by the pressure spring, the top of the push rod is lifted to avoid the heavy hammer, the pressure limiting valve is closed, the blocking piece is positioned at the second position to avoid the floater, and the exhaust hole is closed, so that pressure cooking is realized; the vertical rod has a second stroke when sliding relatively in the second equal-diameter section, the turntable can not drive the push rod to move, the push rod keeps the opening state of the pressure limiting valve and the exhaust hole, and the caliper unlocks. Therefore, in the cooking process, if the air exhaust and pressure relief are realized, the turntable is driven to complete the first stroke, the caliper keeps the locking state, the pressure limiting valve and the exhaust hole are switched to the opening state from the closing state, and after the pressure relief is completed, the turntable is driven to complete the second stroke, so that the caliper is unlocked from the pot body, and meanwhile, the opening state of the pressure limiting valve and the exhaust hole is maintained.

It can be understood that, a person skilled in the art can also adopt the electromagnetic valve to drive the pushing part to do radial reciprocating motion, when the calipers are unlocked, the electromagnetic valve is powered off, the valve rod of the electromagnetic valve moves towards the center direction of the pot cover and is far away from the pushing part, at the moment, the pressure spring resets and drives the sliding plate to be kept in a reset state, so that the top lifting part jacks the heavy hammer, and the blocking part is located at the first position; when the calipers are locked, the electromagnetic valve is electrified, the valve rod of the electromagnetic valve pushes the pushing part to move radially outwards, so that the top lifting part is located in the avoiding space, the heavy hammer falls back under the action of self weight, the pressure limiting valve is closed, the blocking part is located at the second position, and the floater floats upwards to close the exhaust hole.

It can be understood that the locking piece can also be a locking ring, the motor or the handle drives the locking ring to rotate so as to be locked or unlocked with the pot teeth of the pot body, the locking ring is provided with the guide groove, and in the process that the locking teeth are locked or unlocked with the pot teeth of the pot body through the rotation of the locking ring, the guide groove drives the push rod to do radial reciprocating motion and the pressure spring to cooperate, so that the opening and closing of the pressure limiting valve and the exhaust hole can be realized. So that the sliding plate jacks up the heavy hammer to exhaust air through the top lifting part and prevents the floater from floating upwards through the blocking part under the unlocking state of the locking ring. The detailed implementation of the present solution will be readily apparent to those skilled in the art from the description of the preferred embodiments, and will not be described in detail herein.

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. Pressure cooking utensil, including pot body and pot cover, the pot cover includes upper cover and detachable inner cup, be equipped with exhaust hole and float valve in the inner cup, the float valve includes the float that floats from top to bottom in order to open and close the exhaust hole, its characterized in that, install the backstop on the inner cup, the backstop has backstop first position on the float's floating route and dodges the second position in the float's floating route, the backstop is in the first position under the normality so that the float keeps the state of opening the exhaust hole.

2. The pressure cooking appliance of claim 1, wherein said blocking member is translationally slidably mounted on said inner lid, said inner lid having a reset member thereon, said reset member driving said blocking member to remain in a first position.

3. the pressure cooking appliance of claim 1, wherein an exhaust control member is provided on the upper cover for controlling the blocking member to move such that the blocking member is switched to the second position.

4. The pressure cooking appliance of claim 1, wherein said lid has a movable locking element, said lid is locked to said body by said locking element, and said blocking element is in said second position when said locking element is unlocked from said body when said inner lid is engaged with said lid.

5. Pressure cooking appliance according to claim 3, wherein the inner cover is further provided with a pressure limiting valve, a valve seat and a slide plate sliding translationally on the valve seat, the blocking element being a flap extending from the slide plate in the direction of the float valve.

6. The pressure cooking appliance of claim 5, wherein said upper cover defines a valve cavity, said pressure limiting valve cooperates with said valve cavity when said removable inner cover cooperates with said upper cover, said exhaust control member defines a push rod, said slide plate defines a push portion, and said push rod is extendable and retractable within said valve cavity to act on said push portion.

7. The pressure cooking appliance of claim 6, wherein the pressure limiting valve comprises an exhaust pipe and a weight fastened to the exhaust pipe, the slide plate is provided with a top portion of the top weight, the top portion is formed by the top surface of the slide plate protruding upward, the top portion is provided with a guide slope for the top weight, and the guide slope is inclined from high to low toward the center of the lid.

8. The pressure cooking appliance of claim 7, wherein said valve seat and said slide plate each have a through hole for said exhaust tube to pass therethrough, said through holes in said slide plate having a diameter greater than the outer diameter of said exhaust tube to allow said slide plate to slide translationally relative to said exhaust tube.

9. The pressure cooking appliance of claim 6, wherein the removable inner cover further includes a sealing ring on a top surface thereof for cooperating with the valve cavity to form a sealed cavity.

10. the pressure cooking appliance of claim 4, wherein said locking element is a locking collar, a caliper or a locking cover.