CN108201338B - Pot cover assembly and cooking utensil with same - Google Patents

Abstract

The invention discloses a pot cover assembly and a cooking appliance with the same, wherein the pot cover assembly comprises: a pot cover; a cover plate; the floater is movably arranged on the cover plate up and down, an exhaust channel is arranged on the floater, an air inlet and an exhaust port are formed at two ends of the exhaust channel respectively, and the air inlet can move between an opening position and a closing position; the floater ejector rod is provided with a guide inclined plane and a pressing plane connected with the guide inclined plane; an elastic member; the hand turning sliding block can rotate between an uncovering position and a covering position, a pressing block is arranged on the hand turning sliding block, the pressing block moves to the pressing plane from the guide inclined plane when the hand turning sliding block rotates from the covering position to the uncovering position so that the air inlet is kept at the opening position, and the pressing block moves to the guide inclined plane from the pressing plane when the hand turning sliding block rotates from the uncovering position to the covering position so that at least one part of the upward movement freedom degree of the float ejector rod is released. The pot cover assembly provided by the embodiment of the invention has the advantages of convenience in hot cover closing, simplicity in operation and the like.

Description

Pot cover assembly and cooking utensil with same

Technical Field

The invention relates to the technical field of electric appliance manufacturing, in particular to a pot cover assembly and a cooking appliance with the pot cover assembly.

Background

In the related art, if the electric pressure cooker is opened during cooking and closed again, the floater floats upwards due to the upward flowing of hot air in the cooker, and when the electric pressure cooker is closed, the floater is in a floating state and penetrates into the inner cover of the pressure cooker, and after the floater interferes with the inner cover of the pressure cooker, the cooker cover is difficult to close in a screwing mode, namely, a cover is difficult to close in a heating state, and in this case, an operator needs to press the floater with one hand and rotate the screwing hand with the other hand to complete the closing of the cover, so that the operation is complex.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the related art. Therefore, the invention provides the pot cover assembly which has the advantages of convenience in thermal state cover closing, simplicity in operation and the like.

The invention also provides a cooking appliance with the pot cover assembly.

To achieve the above object, an embodiment according to a first aspect of the present invention provides a pot lid assembly, including: a pot cover; the cover plate is arranged on the inner side of the pot cover; the air inlet can move between an opening position below the cover plate and a closing position above the cover plate along with the floater; the pot cover comprises a pot cover, a floater ejector rod, a pressing plate and a pressing plate, wherein the pot cover is provided with a pot cover, the floater ejector rod is arranged on the pot cover, at least one part of the floater ejector rod can move up and down and is used for pressing a floater downwards, and the floater ejector rod is provided with a matching surface which comprises a guide inclined surface and a pressing plane connected to the top end of the guide inclined surface; a resilient member for providing a resilient stress urging said at least a portion of said float stem upwardly; the rotating hand sliding block is rotatably arranged on the pot cover, the rotating hand sliding block can rotate between an uncovering position and a covering position, a pressing block is arranged on the rotating hand sliding block and is pressed on the matching surface, when the rotating hand sliding block rotates from the covering position to the uncovering position, the pressing block moves to the compressing plane from the bottom end of the guide inclined plane, when the pressing block is located on the compressing plane, the float is pressed downwards by the float ejector rod to enable the air inlet to be kept at the opening position, and when the rotating hand sliding block rotates from the uncovering position to the covering position, the pressing block moves to the bottom end of the guide inclined plane from the compressing plane to release the degree of freedom of at least one part of upward movement of the float ejector rod.

The pot cover assembly provided by the embodiment of the invention has the advantages of convenience in hot cover closing, simplicity in operation and the like.

In addition, the pot cover assembly according to the embodiment of the invention may also have the following additional technical features:

according to one embodiment of the invention, when the rotating hand slider rotates from the cover closing position to the cover opening position, the rotating hand slider firstly enters a section of idle stroke that the pressing block is not contacted with the float mandril so as to keep the air inlet of the float at the closing position.

According to one embodiment of the invention, one end of the float top rod is movably mounted on the pot cover up and down, and the other end of the float top rod moves up and down along with the one end of the float top rod and is in transmission fit with the float.

According to one embodiment of the invention, one end of the float top rod is pivotally mounted on the pot cover, and the other end of the float top rod forms a free end capable of moving up and down and is in transmission fit with the float.

According to an embodiment of the present invention, the other end of the float jack is provided with a pressing column for pressing down the float when the hander slider is located at the lid-opening position.

According to one embodiment of the invention, a float cavity for accommodating the float is arranged on the pot cover, and the float cavity is provided with a through hole for the pressure column to extend into the float cavity.

According to one embodiment of the invention, the lower end of the compression leg is sleeved with a flexible sealing sleeve for sealing the via hole.

According to one embodiment of the present invention, one of the pot cover and the one end of the float push rod is provided with a mounting hole and the other is provided with a mounting post, and the mounting post is fitted in the mounting hole.

According to one embodiment of the present invention, the mounting post is provided on the pot cover and the mounting hole is provided at the one end of the float push rod, an upper end of the mounting post is fitted with a threaded fastener having a nut for defining a highest position of the one end of the float push rod.

According to one embodiment of the invention, the pot cover is provided with a first stop block and a second stop block which are respectively positioned at two sides of the float top rod to prevent the float top rod from rotating around the mounting column.

According to one embodiment of the invention, the cover plate is provided with a floater through hole and a mounting seat communicated with the floater through hole, and the floater can be movably mounted on the mounting seat up and down and penetrates through the floater through hole.

According to one embodiment of the invention, the float through hole is an upturned hole.

According to one embodiment of the invention, the lid comprises: an outer cover; the inner cup, the inner cup is established in the enclosing cover, the apron is established the inner cup is inboard, the float ejector pin with revolve the hand slider and install on the inner cup, the elastic component respectively with the float ejector pin with the inner cup links to each other.

Embodiments according to a second aspect of the invention propose a cooking appliance comprising a lid assembly according to embodiments of the first aspect of the invention.

According to the cooking appliance provided by the embodiment of the invention, by utilizing the pot cover assembly provided by the embodiment of the first aspect of the invention, the advantages of convenience in hot closing, simplicity in operation and the like are achieved.

According to one embodiment of the invention, the cooking appliance is a pressure cooker.

Drawings

Fig. 1 is a partial structural view of a pot cover assembly according to an embodiment of the present invention.

Fig. 2 is a partial cross-sectional view of a pot lid assembly according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of the pot cover assembly in a cover closing state according to the embodiment of the invention.

Fig. 4 is a schematic structural view of a pot lid assembly according to an embodiment of the present invention in an intermediate state between a lid closed state and a lid open state.

Fig. 5 is a schematic structural view of a pot lid assembly according to an embodiment of the present invention in an uncapped state.

Reference numerals:

apot cover component 10,

The cooker cover 100, theinner cover 110, thefloat cavity 111, themounting column 113, thefirst stop 114, thesecond stop 115, thecover plate 120, themounting seat 121, the float throughhole 122, theflexible sealing sleeve 130, the,

Afloat 200, anair inlet 210, anair discharge passage 220, anair discharge port 230,

Float top bar 240,guide slope 241, pressingplane 242, pressingcolumn 243,mounting hole 244, threadedfastener 245,nut 246,mating face 247, and,

The hand turningslider 410 and thepressing block 411.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

Apot lid assembly 10 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 5, apot lid assembly 10 according to an embodiment of the present invention includes apot lid 100, acover plate 120, afloat 200, afloat push bar 240, an elastic member (not shown in the drawings), and ahandedslider 410.

Thecover plate 120 is disposed inside thelid 100, wherein the inner and outer directions are for the cooking utensil with thelid assembly 10, in other words, thecover plate 120 is located at the lower side of thelid 100 when thelid assembly 10 is closed. Thefloat 200 is movably installed on thecover plate 120 up and down, thefloat 200 is provided with avent passage 220, both ends of thevent passage 220 extend to both ends of thefloat 200 to form anair inlet 210 and anair outlet 230, respectively, for example, theair inlet 210 is located at the lower end of thefloat 200 and theair outlet 230 is located at the upper end of thefloat 200. Theair inlet 210 is movable with thefloat 200 between an open position below thecover 120 and a closed position above thecover 120. Thefloat push rod 240 is installed on thepot lid 100, at least a portion of thefloat push rod 240 is movable up and down and is used for pushing thefloat 200 downward, thefloat 200 is pressed downward when at least a portion of thefloat push rod 240 is moved downward to place thefloat 200 in an open position, and thefloat 200 is allowed to move to a closed position when at least a portion of thefloat push rod 240 is moved upward. Thefloat top bar 240 is provided with amatching surface 247, and thematching surface 247 comprises a guideinclined surface 241 and apressing plane 242 connected to the top end of the guideinclined surface 241. The elastic member may be connected to thefloat push rod 240 and thepot lid 100, respectively, for providing an elastic stress pushing the at least a portion of thefloat push rod 240 upward.

Thehand slider 410 is rotatably mounted on thelid 100 between an open position and a closed position, and thehand slider 410 is rotated by a hand (not shown) on thelid 100. Thehandle slider 410 is provided with apressing block 411, and thepressing block 411 is arranged on thematching surface 247. Thepressing piece 411 moves to thepressing plane 242 by theguide slope 241 and gradually presses down the at least a portion of thefloat push rod 240 to finally keep theair inlet 210 of thefloat 200 at the open position when thehand slider 410 rotates from the cover close position to the cover open position, that is, thepressing piece 411 moves to thepressing plane 242 by the bottom end of theguide slope 241 when thehand slider 410 rotates from the cover close position to the cover open position and thefloat 200 is pressed down by thefloat push rod 240 to keep theair inlet 210 at the open position when thepressing piece 242 is located at thepressing plane 242. Thepressing piece 411 moves from thepressing plane 242 to theguide slope 241 and gradually releases the at least a portion of thefloat push rod 240 when thehand slider 410 rotates from the open-cover position to the close-cover position to finally allow theair inlet 210 to move with thefloat 200 to the close position when thefloat 200 is pressed, i.e., thepressing piece 411 moves from thepressing plane 242 to the bottom end of theguide slope 241 to release the degree of freedom of the at least a portion of thefloat push rod 240 to move upward when thehand slider 410 rotates from the open-cover position to the close-cover position.

It will be understood by those skilled in the art that the guidingslope 241 and thepressing plane 242 on thefloat push rod 240 are inclined, and the guidingslope 241 is inclined with respect to thepressing plane 242, for example, when thefloat push rod 240 is not pressed down by thepressing block 411, thepressing plane 242 may be horizontally disposed, and the guidingslope 241 is inclined with respect to the horizontal plane. Thepressing block 411 moves between the bottom end of the guidinginclined surface 241 and thepressing plane 242, which only refers to the circumferential travel of thepressing block 411 around the rotation axis of thehander slider 410 along with thehander slider 410, and is not limited to the fact that thepressing block 411 needs to move in the up-down direction.

When the cover is opened again in the midway of cooking and cooking, the hand-rotatingslider 410 rotates to the opening position (as shown in fig. 5), thepressing block 411 on the hand-rotatingslider 410 presses thepressing plane 242 on thefloat push rod 240 downwards, at least one part of thefloat push rod 240 moves downwards and presses thefloat 200 downwards, the elastic stress of the elastic part is overcome, so that theair inlet 210 moves downwards along with thefloat 200 to the opening position, namely, the air inlet is positioned below thecover plate 120, the space in the pot is communicated with the external environment, the force of the hot air in the pot pushing thefloat 200 upwards is reduced, the friction force during rotation is further reduced, the cover is conveniently rotated and closed, and the operation can be completed only by rotating the hand-rotatingslider 410 by one hand.

When thehand slider 410 is rotated to the cover closing position (as shown in fig. 1), thepressing piece 411 on thehand slider 410 moves from thepressing plane 242 to the guidinginclined plane 241, thereby gradually releasing thefloat push rod 240, at least one part of thefloat push rod 240 gradually moves upwards under the elastic stress of the elastic piece, at least one part of thefloat push rod 240 does not generate downward pressure on thefloat 200, at least one part of thefloat push rod 240 is upwards far away from thefloat 200 and reserves a space for thefloat 200 to ascend, after the pressure in the pot is raised, thefloat 200 is pushed up by the pressure in the cooker, theair inlet 210 is raised to the closed position, the space in the cooker is blocked from the external environment, the air tightness in the closed state is ensured, and because thefloat 200 is jacked up by the pressure in the cooker, thepress block 411 is stopped by thefloat mandril 240, so that the hand rotatingslide block 410 cannot be easily moved to the cover opening position, and the cover closing protection function is realized.

According to thelid assembly 10 of the embodiment of the present invention, thefloat 200 which can move up and down and thefloat push rod 240 which is respectively linked with the rotatinghand slider 410 and thefloat 200 are provided, and the guideinclined surface 241 and thepressing plane 242 are provided on thefloat push rod 240, and theair inlet 210 which can move up and down along with thefloat 200 is provided on thefloat 200, so that theair inlet 210 can move between the open position below thecover plate 120 and the closed position above thecover plate 120. From this, when closing the lid once more after uncapping midway in the culinary art process of cooking, can utilize theair inlet 210 that is located the open position, make the space in the pot loop throughair inlet 210,exhaust passage 220 andgas vent 230 and external environment intercommunication, steam discharges in the pot, make pressure in the pot approach external environment pressure, can reduce the power that steam upwards promotedfloat 200 in the pot like this, and then reduce the interference and conveniently close the lid hasp soon, not only it is more laborsaving and smooth and easy to close soon, and one-hand can accomplish moreover, the operation is simpler, the protection function that closes the lid has been realized simultaneously. Thepot cover assembly 10 provided by the embodiment of the invention has the advantages of convenience in hot cover closing, simplicity in operation and the like.

It should be understood by those skilled in the art that thelid assembly 10 according to the embodiment of the present invention may further be provided with a zero pressure float, i.e. thefloat 200 and the zero pressure float are two different floats, and the zero pressure float is used for detecting the pressure in the cooker, thereby transmitting a signal to control the heating parameter.

Apot lid assembly 10 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 5, apot lid assembly 10 according to an embodiment of the present invention includes apot lid 100, acover plate 120, afloat 200, afloat push bar 240, an elastic member (not shown in the drawings), and ahandedslider 410.

Specifically, as shown in fig. 3 to 5, theexhaust passage 220 extends in the axial direction of thefloat 200, and theintake port 210 and theexhaust port 230 extend in the radial direction of thefloat 200 and are adjacent to both ends of thefloat 200, respectively. For example, thefloat 200 is vertically movably provided, theexhaust passage 220 extends in the vertical direction, the plurality ofintake ports 210 are provided at the lower end of thefloat 200 at equal intervals in the circumferential direction of thefloat 200, and the plurality ofexhaust ports 230 are provided at the upper end of thefloat 200 at equal intervals in the circumferential direction of thefloat 200.

In some embodiments of the present invention, as shown in fig. 1 to 5, thehandle slider 410 first enters a section of idle stroke where thepressing piece 411 does not contact thefloat plunger 240 when rotating from the lid-closing position to the lid-opening position, so that theair inlet 210 of thefloat 200 is maintained at the closing position. In other words, the entire stroke of thehand slider 410 from the lid closing position to the lid opening position includes an idle stroke, which thehand slider 410 first enters when rotating from the lid closing position to the lid opening position. In this idle stroke, thepressure piece 411 is spaced apart from thefloat plunger 240, and theair inlet 210 of thefloat 200 is maintained in the closed position. The free stroke is finally entered when thehandslider 410 is turned from the open-lid position to the close-lid position. In this idle stroke, at least a part of thefloat push rod 240 is located at the highest position, and thepressing piece 411 is gradually separated from thefloat push rod 240. Therefore, by designing a section of idle stroke in the stroke of turning thehand turning slider 410 from the cover closing position to the cover opening position, thepressing block 411 is not in contact with thefloat ejector rod 240 in the idle stroke, so that thepressing block 411 does not immediately press thefloat ejector rod 240 after thehand turning slider 410 rotates under misoperation, and thus, thefloat 200 does not immediately move downwards to exhaust, namely, the exhaust during the cover opening misoperation is avoided.

In some embodiments of the present invention, as shown in fig. 1-5, thelid 100 includes an outer lid (not shown) and aninner lid 110.

Theinner cover 110 is arranged in the outer cover, thehander slider 410, thefloat push rod 240 and the elastic piece are arranged between the outer cover and theinner cover 110, thefloat push rod 240 and thehander slider 410 are arranged on theinner cover 110, the elastic piece is respectively connected with theinner cover 110 and thefloat push rod 240, and the elastic piece can be a spring or an elastic piece and can control the pressing distance of thefloat push rod 240. Thecover plate 120 is disposed below theinner cover 110, and thefloat 200 is movably mounted on thecover plate 120 up and down.

Specifically, as shown in fig. 3 to 5, thecover plate 120 is provided with a float throughhole 122 and a mountingseat 121 communicating with the float throughhole 122, and thefloat 200 is movably mounted on the mountingseat 121 up and down and passes through the float throughhole 122, so that thefloat 200 can be movably mounted on thecover plate 120, and the movement locus of thefloat 200 can be guided, thereby improving the movement stability of thefloat 200.

Preferably, the float through-hole 122 is an upturned hole to increase the structural strength of theinner cover 110 and the reliability of thefloat 200 after installation.

In some embodiments of the present invention, as shown in fig. 1 to 5, one end of thefloat push rod 240 is movably installed on theinner cover 110 up and down, and the other end of thefloat push rod 240 moves up and down along with the one end of thefloat push rod 240 and is in driving engagement with thefloat 200. In other words, thefloat push rod 240 is integrally attached to theinner lid 110 so as to be movable up and down.

Specifically, one of the one ends of theinner cover 110 and thefloat push rod 240 is provided with a mountinghole 244, and the other one of the one ends of theinner cover 110 and thefloat push rod 240 is provided with a mountingpost 113, the axial direction of the mountinghole 244 and the axial direction of the mountingpost 113 both extend in the up-down direction, and the mountingpost 113 is fitted in the mountinghole 244 and can move up and down relatively, so that thefloat push rod 240 as a whole can be movably mounted on theinner cover 110 up and down.

For example, as shown in fig. 1 to 5, the mountingpost 113 is provided on theinner cover 110 and the mountinghole 244 is provided at the one end of thefloat push rod 240, the upper end surface of the mountingpost 113 is provided with a threaded hole, a threadedfastener 245, such as a bolt or a screw, is fitted into the threaded hole, and the upper end of the threadedfastener 245 is provided with anut 246, thenut 246 is used for limiting the highest position of the one end of thefloat push rod 240, so that the stability of the movement of thefloat push rod 240 is improved, and thefloat push rod 240 is prevented from being pulled out of the mounting post.

Further, as shown in fig. 1 to 5, theinner cover 110 is provided with afirst stopper 114 and asecond stopper 115 respectively located at both sides of thefloat push rod 240, thefirst stopper 114 and thesecond stopper 115 may have a U-shape respectively having an opening facing thefloat push rod 240, and thefirst stopper 114 and thesecond stopper 115 may stop thefloat push rod 240 at both sides to prevent thefloat push rod 240 from rotating around the mountingpost 113, that is, to prevent thefloat push rod 240 from swinging, and only allow thefloat push rod 240 to move up and down.

In other embodiments of the present invention, one end of thefloat push rod 240 is pivotably installed on theinner cover 110, and the other end of thefloat push rod 240 constitutes a free end that can move up and down and is in driving engagement with thefloat 200. For example, one end of thefloat push rod 240 is hinged to theinner cover 110, and thefloat 200 is pressed down by the other end of thefloat push rod 240.

In some embodiments of the present invention, as shown in fig. 1 to 5, in order to facilitate thefloat push rod 240 to push down thefloat 200 and to facilitate the rational design of the structure of thelid assembly 10, the other end of thefloat push rod 240 is provided with a downward extendingpressing post 243, thepressing post 243 moves up and down with the other end of thefloat push rod 240, thepressing post 243 pushes down thefloat 200 when thehandedslider 410 is in the lid-opening position, and thepressing post 243 is separated from thefloat 200 and spaced apart from thefloat 200 in the up-down direction when thehandedslider 410 is in the lid-closing position.

Further, as shown in fig. 2-5, afloat cavity 111 is provided on theinner cover 110, thefloat 200 is located in thefloat cavity 111 to protect thefloat 200 and prevent gas leakage, and a top wall of thefloat cavity 111 has a through hole for thepressure column 243 to extend into thefloat cavity 111.

Advantageously, as shown in fig. 1 to 5, the lower end of thepressure column 243 is sleeved with aflexible sealing sleeve 130, theflexible sealing sleeve 130 may have a corrugated structure, and theflexible sealing sleeve 130 may be arranged to seal the through hole without affecting the downward extension of thepressure column 243 into thefloat cavity 111 to press thefloat 200, and further, to avoid thepressure column 243 from contacting thefloat 200 to cause abrasion.

A cooking appliance according to an embodiment of the present invention is described below with reference to the accompanying drawings.

Thepot lid assembly 10 according to the above-described embodiment of the present invention is included according to an embodiment of the present invention.

According to the cooking utensil of the embodiment of the invention, by using thepot cover assembly 10 of the embodiment of the invention, the advantages of convenience in hot cover closing, simplicity in operation and the like are achieved.

In particular, the cooking appliance may be a pressure cooker.

Other constructions and operations of the cooking appliance according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.

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", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered 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, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (15)

1. A lid assembly, comprising:

a pot cover;

the cover plate is arranged on the inner side of the pot cover;

the air inlet can move between an opening position below the cover plate and a closing position above the cover plate along with the floater;

the pot cover comprises a pot cover, a floater ejector rod, a pressing plate and a pressing plate, wherein the pot cover is provided with a pot cover, the floater ejector rod is arranged on the pot cover, at least one part of the floater ejector rod can move up and down and is used for pressing a floater downwards, and the floater ejector rod is provided with a matching surface which comprises a guide inclined surface and a pressing plane connected to the top end of the guide inclined surface;

a resilient member for providing a resilient stress urging said at least a portion of said float stem upwardly;

the rotating hand sliding block is rotatably arranged on the pot cover, the rotating hand sliding block can rotate between an uncovering position and a covering position, a pressing block is arranged on the rotating hand sliding block and is pressed on the matching surface, when the rotating hand sliding block rotates from the covering position to the uncovering position, the pressing block moves to the compressing plane from the bottom end of the guide inclined plane, when the pressing block is located on the compressing plane, the float is pressed downwards by the float ejector rod to enable the air inlet to be kept at the opening position, and when the rotating hand sliding block rotates from the uncovering position to the covering position, the pressing block moves to the bottom end of the guide inclined plane from the compressing plane to release the degree of freedom of at least one part of upward movement of the float ejector rod.

2. The lid assembly of claim 1, wherein the handle slider initially enters an idle stroke during rotation from the lid closed position to the lid open position wherein the pressure piece is not in contact with the float plunger to maintain the air inlet of the float in the closed position.

3. The pot cover assembly of claim 1, wherein one end of the float push rod is movably mounted on the pot cover up and down, and the other end of the float push rod moves up and down with the one end of the float push rod and is in driving fit with the float.

4. The lid assembly of claim 1, wherein one end of the float push rod is pivotally mounted on the lid and the other end of the float push rod constitutes a free end that is movable up and down and is in driving engagement with the float.

5. The lid assembly according to claim 3 or 4, wherein the other end of the float push rod is provided with a pressing column for pressing down the float when the hander slider is in the lid-open position.

6. The lid assembly of claim 5, wherein the lid has a float cavity for receiving the float and the float cavity has a through hole for the pressure column to extend into the float cavity.

7. The lid assembly of claim 6, wherein the lower end of the compression leg is fitted with a flexible sealing boot for sealing the through hole.

8. The lid assembly of claim 3, wherein one of the lid and the one end of the float stem is provided with a mounting hole and the other is provided with a mounting post, the mounting post fitting within the mounting hole.

9. The pot cover assembly of claim 8, wherein the mounting post is provided on the pot cover and the mounting hole is provided at the one end of the float stem, an upper end of the mounting post is fitted with a threaded fastener having a nut for defining an uppermost position of the one end of the float stem.

10. The lid assembly of claim 8, wherein the lid has a first stop and a second stop located on opposite sides of the float stem to prevent the float stem from rotating about the mounting post.

11. The pot cover assembly of claim 1, wherein the cover plate is provided with a float through hole and a mounting seat communicated with the float through hole, and the float is movably mounted on the mounting seat up and down and penetrates through the float through hole.

12. The lid assembly of claim 11, wherein the float through hole is an upturned hole.

13. The lid assembly of claim 1, wherein the lid comprises:

an outer cover;

the inner cup, the inner cup is established in the enclosing cover, the apron is established the inner cup is inboard, the float ejector pin with revolve the hand slider and install on the inner cup, the elastic component respectively with the float ejector pin with the inner cup links to each other.

14. A cooking appliance comprising a lid assembly according to any one of claims 1-13.

15. The cooking appliance of claim 14, wherein the cooking appliance is a pressure cooker.

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