CN219629326U - Pressure cooking utensil - Google Patents

Abstract

The utility model discloses a pressure cooking utensil, which comprises a pot cover, wherein the pot cover comprises an inner cover and an inner lining ring sleeved on the outer side of the inner cover, a horizontally moving ejector rod is arranged between the inner lining ring and the inner cover, a through hole is formed in the upper end of the ejector rod, a floater penetrating through the through hole is arranged on the inner cover, and a limiting frame is arranged on the inner lining ring and matched with the ejector rod to limit the ejector rod. The pressure cooking utensil not only effectively improves the reliability of the action of the ejector rod, but also improves the cover opening and closing experience, the cooking effect and the cover opening and closing safety protection effect of the product; and the appearance quality of the pot cover can be improved.

Description

Pressure cooking utensil

[ field of technology ]

The utility model relates to the technical field of kitchen appliances, in particular to a pressure cooking appliance.

[ background Art ]

In order to prevent safety accidents caused by opening and closing the cover, the cover of the existing pressure cooker is provided with a safety opening and closing device so as to ensure that the cover cannot be opened under the pressure state and the cover can be smoothly opened and closed under the non-pressure state. The current safety opening and closing device comprises a push rod and a float, wherein the pot cover comprises an inner cover and an inner lining ring sleeved on the outer side of the inner cover, the push rod is arranged between the inner lining ring and the inner cover and can move horizontally along the radial direction of the inner cover, the float comprises a valve rod which is arranged on the inner cover in a floating mode, the upper end of the push rod comprises a through hole for the valve rod to move up and down to penetrate, the through hole comprises an avoidance hole and a stop hole with the aperture smaller than the avoidance hole, the lower end of the push rod is connected with a push rod column, the push rod column penetrates the inner cover to extend out, a spring telescopic structure is further sleeved on the push rod column, and the opening and closing operation of the pot cover is realized through the mutual cooperation of the push rod column and pot teeth of the pot body. The method comprises the following steps:

when the cover opening operation is carried out, when the pressure in the pot is not available, the float falls down under the action of gravity, the diameter of the middle part of the valve rod is smaller than the aperture of the avoidance hole, the pot cover is rotated, at the moment, the action of the ejector rod column is that the ejector rod column is gradually compressed into the pot cover along with the spring from the initial natural extending state to the passing of the pot teeth, the ejector rod column moves horizontally outwards in the radial direction to drive the ejector rod to retreat, and the valve rod slides into the stop hole from the avoidance hole, so that the pot cover can be opened smoothly; when pressure exists in the pot, the valve rod rises, at the moment, the lower part of the valve rod corresponds to the avoiding hole, the diameter of the lower part of the valve rod is larger than the width of the stop hole, so that the valve rod cannot slide into the stop hole, the pot cover cannot be rotated, the ejector rod cannot be retracted, the ejector rod column cannot be retracted, the inner side of the pot cover is always ejected to stretch out, the outer pot is clamped, and the pot cover cannot rotate, so that the pot cover cannot be opened.

In order to limit the ejector rod, the surface cover of the existing pot cover comprises a side cover and a decorative cover arranged at the top of the side cover, wherein a limit rib for limiting the ejector rod is arranged on the back surface of the decorative cover; in addition, the limiting ribs are arranged on the back surface of the decorative cover, so that appearance defects such as shrink marks and the like can be caused on the appearance surface of the decorative cover, the appearance effect of a product is reduced, and the control cost of the injection molding process of accessories is increased.

[ utility model ]

The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide the pressure cooking utensil, which not only effectively improves the reliability of the ejector rod action, but also improves the cover opening and closing experience, the cooking effect and the cover opening and closing safety protection effect of the product; and the appearance quality of the pot cover can be improved.

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

the utility model provides a pressure cooking utensil, includes the pot cover, the pot cover includes inner cup and suit inner liner ring in the inner cup outside, be equipped with horizontal migration's ejector pin between inner liner ring and the inner cup, the upper end of ejector pin is equipped with the through-hole, the inner cup is installed and is run through the float of through-hole, be equipped with the spacing on the inner liner ring, the spacing with the ejector pin cooperation is in order to right the ejector pin is spacing.

In the pressure cooking appliance, the limiting frame is provided with a limiting groove which is opened towards the inner cover, and at least part of the ejector rod is limited in the limiting groove.

In the pressure cooking appliance, the upper end of the ejector rod is limited in the limiting groove, and the top wall of the limiting groove is provided with the avoiding hole for the floater to penetrate.

In the pressure cooking utensil, the inner side wall of the limiting groove is provided with a first antifriction convex rib, and the first antifriction convex rib is propped against the side face of the ejector rod.

In the pressure cooking appliance, the inner cover is provided with the float valve seat, the float is floatingly arranged on the float valve seat, and the upper end of the ejector rod is limited between the top wall of the limiting groove and the top surface of the float valve seat.

In the pressure cooking utensil, the limiting frame comprises limiting plates which are arranged at two sides of the ejector rod at intervals, wherein the limiting plates are provided with limiting sliding grooves which extend horizontally, and two sides of the upper end of the ejector rod are inserted in the limiting sliding grooves in a sliding manner.

In the pressure cooking utensil, the limit frame and the inner lining ring are integrally injection molded.

In the pressure cooking appliance, the top part of the inner cover partially sinks to form a sinking table, the floater penetrates through the sinking table, and the limiting frame is propped against the sinking table.

In the pressure cooking utensil, the pot cover further comprises a surface cover, an upper positioning part is arranged on the surface cover, a lower positioning part is arranged on the limiting frame, and the upper positioning part is matched with the lower positioning part to circumferentially limit the surface cover.

In the pressure cooking utensil, the lower extreme of ejector pin is connected with the ejector pin post, the one end of ejector pin post runs through the inner cup setting, and the other end runs through the lining ring setting, the cover is equipped with the elastic component that presss from both sides dress between lining ring and ejector pin on the ejector pin post.

The utility model has the beneficial effects that:

the limiting frame is arranged on the lining ring and is matched with the ejector rod to limit the ejector rod. When the novel cooker cover is assembled, the limiting frame is firstly arranged on the lining ring, then the ejector rod is assembled to enable the limiting frame to be matched with the ejector rod to limit the ejector rod, and finally the inner cover and the cover of the cooker cover are assembled, so that the matching of the limiting frame and the ejector rod belongs to visual assembly, and compared with the blind assembly in the prior art, the novel cooker cover is simpler and more convenient to assemble; in addition, because the limiting frame and the ejector rod are both arranged on the lining ring, the matching effect of the limiting frame and the ejector rod can be improved by adjusting the assembly state of the limiting frame when the limiting frame and the ejector rod are assembled, the ejector rod is not influenced by the sizes and assembly errors of other accessories except the limiting frame, the reliability of the action of the ejector rod is improved, and the cover opening and closing experience, the cooking effect and the cover opening and closing safety protection effect of a product are improved; finally, the limit rib structure on the cover can be canceled, so that the appearance problems of injection molding shrinkage and the like caused by the limit ribs can be avoided, and the appearance quality of the pot cover is improved.

The limiting frame is provided with a limiting groove which is opened towards the inner cover, and at least part of the ejector rod is limited in the limiting groove. By means of the design, the upper limit of the ejector rod can be achieved through the top wall of the limit groove, the inner cover can achieve the lower limit of the ejector rod, vertical limit of the ejector rod is achieved through the cooperation of the limit frame and the inner cover, and therefore the limit effect of the ejector rod is improved.

The upper end of the ejector rod is limited in the limiting groove, and the top wall of the limiting groove is provided with an avoidance hole for the floater to penetrate. The structure of the limiting frame can be simplified by the design, so that the processing and forming of the limiting frame are facilitated.

The inside wall of spacing groove is equipped with first antifriction convex rib, and first antifriction convex rib offsets with the side of ejector pin. By means of the design, the limiting effect of the ejector rod is further improved by the aid of the first antifriction convex ribs and the side face of the ejector rod, the reliability of horizontal movement of the ejector rod is further improved, the contact area between the limiting groove and the ejector rod can be reduced, friction resistance applied to the ejector rod during movement is further reduced, and accordingly the ejector rod can move smoothly.

The inner cover is provided with a float valve seat, the float is floatingly arranged on the float valve seat, and the upper end of the ejector rod is limited between the top wall of the limit groove and the top surface of the float valve seat. By the design, the ejector rod can be prevented from vertical shaking, so that the limiting effect on the ejector rod is improved; the float valve seat can guide the float to avoid the float from being blocked due to deflection when floating.

The limiting frame comprises limiting plates which are arranged at two sides of the ejector rod at intervals, wherein the limiting plates are provided with limiting sliding grooves which extend horizontally, and two sides of the upper end of the ejector rod are slidably inserted in the limiting sliding grooves. By means of the design, the ejector rod can only horizontally move through the limiting sliding groove, other structures are not required to vertically limit the ejector rod, and therefore the structure is simpler and the assembly is more convenient.

The limit frame and the lining ring are integrally injection molded. By the design, the connection reliability of the limiting frame and the lining ring can be improved, the problems that the limiting frame and the lining ring are assembled to cause complex assembly and assembly errors of the limiting frame are avoided, the ejector rod is not affected by the assembly errors of the limiting frame, and the action reliability of the ejector rod is improved.

The top part of the inner cover is partially sunk to form a sinking platform, the floater penetrates through the sinking platform, and the limiting frame is propped against the sinking platform. By the design, an avoidance space can be formed through the sinking table so as to avoid the upper end of the limiting frame, and therefore the thickness of the pot cover is reduced; and when the inner cover is assembled on the inverted lining ring, the limiting frame is propped against the sinking table to realize the lower limit of the inner cover, so that the inner cover and the lining ring are conveniently connected and fixed by the screws.

The pot cover also comprises a surface cover, an upper positioning part is arranged on the surface cover, a lower positioning part is arranged on the limiting frame, and the upper positioning part is matched with the lower positioning part to circumferentially limit the surface cover. Through the design, the circumferential limit of the face cover can be realized through the cooperation of the upper positioning part and the lower positioning part, so that the steam exhaust hole on the face cover is ensured to correspond to the floater.

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

[ description of the drawings ]

The utility model is further described with reference to the accompanying drawings:

fig. 1 is a sectional view of a pressure cooking appliance according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of a portion of FIG. 1A;

FIG. 3 is a schematic view of a liner ring in a first embodiment of the present utility model;

FIG. 4 is a schematic diagram of an inversion structure of a liner ring according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram illustrating assembly of the ejector pin, the ejector pin column and the elastic member according to the first embodiment of the present utility model;

FIG. 6 is a schematic view showing a structure in which a float is mounted on an inner cover in accordance with the first embodiment of the present utility model;

fig. 7 is a schematic view of a structure of a pan cover with a cover removed in accordance with the first embodiment of the present utility model.

Reference numerals:

100. an inner cover; 101. a second perforation; 110. a float valve seat; 120. a sinking platform; 200. a liner ring; 210. an outer vertical edge; 211. a first perforation; 300. a push rod; 301. a horizontal portion; 302. an inclined portion; 303. a vertical portion; 304. a post rod; 310. a through hole; 311. a stop hole; 312. avoidance holes; 400. a float; 410. a small diameter section; 500. a limiting frame; 510. a side plate; 520. a top plate; 521. avoidance holes; 522. a lower positioning part; 530. a limit groove; 531. a first antifriction bead; 532. second antifriction ribs; 600. a face cover; 610. a steam exhaust hole; 620. an upper positioning part; 700. an outer pot.

[ detailed description ] of the utility model

The utility model provides a pressure cooking utensil, which comprises a pot cover, wherein the pot cover comprises an inner cover and an inner lining ring sleeved on the outer side of the inner cover, a horizontally moving ejector rod is arranged between the inner lining ring and the inner cover, a through hole is formed in the upper end of the ejector rod, a floater penetrating through the through hole is arranged on the inner cover, and a limiting frame is arranged on the inner lining ring and matched with the ejector rod to limit the ejector rod.

The limiting frame is arranged on the lining ring and is matched with the ejector rod to limit the ejector rod. When the novel cooker cover is assembled, the limiting frame is firstly arranged on the lining ring, then the ejector rod is assembled to enable the limiting frame to be matched with the ejector rod to limit the ejector rod, and finally the inner cover and the cover of the cooker cover are assembled, so that the matching of the limiting frame and the ejector rod belongs to visual assembly, and compared with the blind assembly in the prior art, the novel cooker cover is simpler and more convenient to assemble; in addition, because the limiting frame and the ejector rod are both arranged on the lining ring, the matching effect of the limiting frame and the ejector rod can be improved by adjusting the assembly state of the limiting frame when the limiting frame and the ejector rod are assembled, the ejector rod is not influenced by the sizes and assembly errors of other accessories except the limiting frame, the reliability of the action of the ejector rod is improved, and the cover opening and closing experience, the cooking effect and the cover opening and closing safety protection effect of a product are improved; finally, the limit rib structure on the cover can be canceled, so that the appearance problems of injection molding shrinkage and the like caused by the limit ribs can be avoided, and the appearance quality of the pot cover is improved.

The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model. In addition, it is to be understood that the terms "upper," "lower," "left," "right," "longitudinal," "transverse," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like, which refer to an orientation or positional relationship, are merely based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices/elements referred to must have a specific orientation or be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model.

Example 1

Referring to fig. 1 to 7, the pressure cooker in this embodiment is a pressure cooker, and includes a cover and a cooker body, the cover includes an inner cover 100 and a liner ring 200 sleeved outside the inner cover 100, a push rod 300 capable of horizontally moving along the radial direction of the inner cover 100 is provided between the liner ring 200 and the inner cover 100, a through hole 310 is provided at the upper end of the push rod 300, a float 400 capable of penetrating through the through hole 310 is mounted on the inner cover 100, a limit frame 500 is provided on the liner ring 200, and the limit frame 500 cooperates with the push rod 300 to limit the push rod 300.

When the pot cover in the embodiment is assembled, firstly, the limiting frame 500 is mounted on the lining ring 200, then the ejector rod 300 is assembled, the limiting frame 500 is matched with the ejector rod 300 to limit the ejector rod 300, and finally, the inner cover 100 and the surface cover of the pot cover are assembled, so that the matching of the limiting frame 500 and the ejector rod 300 belongs to visual assembly, and compared with the blind assembly in the prior art, the assembly of the embodiment is simpler and more convenient; in addition, since the limiting frame 500 and the ejector rod 300 are both installed on the lining ring 200, the matching effect of the limiting frame 500 and the ejector rod 300 can be improved by adjusting the assembly state of the limiting frame 500 when the limiting frame 500 and the ejector rod 300 are assembled, the ejector rod 300 is not limited by the influence of the sizes and assembly errors of other accessories except the limiting frame 500, the reliability of the action of the ejector rod 300 is improved, and the cover opening and closing experience, the cooking effect and the cover opening and closing safety protection effect of a product are improved; finally, the limit rib structure on the cover can be canceled, so that the appearance problems of injection molding shrinkage and the like caused by the limit ribs can be avoided, and the appearance quality of the pot cover is improved.

Specifically, the ejector 300 in this embodiment includes a horizontal portion 301 located on the upper surface of the inner cap 100, an inclined portion 302 and a vertical portion 303 located on the outer side of the sidewall of the inner cap 100, which are sequentially connected, the horizontal portion 301, the inclined portion 302 and the vertical portion 303 are integrally formed, the horizontal portion 301 forms the upper end of the ejector 300, the vertical portion 303 forms the lower end of the ejector 300, the vertical portion 303 is integrally formed with a horizontally extending ejector post 304, the outer ring side of the inner liner ring 200 is provided with an outer vertical edge 210 surrounding the outer side of the ejector 300, the outer vertical edge 210 is provided with a first through hole 211 through which the outer end of the ejector post 304 passes, the sidewall of the inner cap 100 is provided with a second through hole 101 through which the inner end of the ejector post 304 passes, the ejector post 304 is further sleeved with an elastic member clamped between the outer vertical edge 210 and the vertical portion 303, and the elastic member is preferably a spring, so that the ejector 300 can move horizontally. The through hole 310 comprises a stop hole 311 and an avoidance hole 312 positioned at the outer side of the small hole, the aperture of the stop hole 311 is smaller than that of the avoidance hole 312, the stop hole 311 is communicated with the avoidance hole 312, the axis of the stop hole 311 and the axis of the avoidance hole 312 are intersected with and perpendicular to the axis of the ejector rod column 304, the aperture of the avoidance hole 312 is larger than the maximum outer diameter of the float 400, the float 400 is provided with a small-diameter section 410 with the outer diameter smaller than that of the stop hole 311, and the outer diameter of the other part of the float 400 is larger than that of the stop hole 311. As the lid rotates, the inner end of the ejector rod column 304 cooperates with the concave-convex teeth of the outer pot 700, so as to drive the ejector rod 300 to reciprocate along the radial direction of the inner lid 100, when no pressure exists in the pot, the small-diameter section 410 of the float 400 penetrates through the avoiding hole 312, at this time, when the lid is opened, the ejector rod 300 moves radially outwards, the small-diameter section 410 can slide into the stop hole 311 smoothly, and the lid can be opened smoothly; if pressure exists in the pot, the float 400 rises, at this time, the part of the float 400 below the small diameter section 410 penetrates through the avoiding hole 312, and the part cannot slide into the stopping hole 311 because the outer diameter of the part is larger than the aperture of the stopping hole 311, so that the ejector rod 300 can be blocked from moving radially outwards, and the ejector rod always pushes out of the inner side of the inner cover 100 and clamps the outer pot 700, so that the pot cover cannot rotate, and the cover cannot be opened.

The spacing frame 500 in this embodiment is preferably molded integrally with the liner ring 200 by injection molding, so that the connection reliability of the spacing frame 500 and the liner ring 200 can be improved, and the problems of complex assembly and assembly errors of the spacing frame 500 caused by assembly of the spacing frame 500 and the liner ring 200 are avoided, so that the ejector rod 300 is not affected by the assembly errors of the spacing frame 500, and further the action reliability of the ejector rod 300 is improved.

The limiting frame 500 includes two side plates 510 disposed at intervals and a top plate 520 connected between the tops of the two side plates 510, the side plates 510 are connected with the inner ring edge of the inner liner ring 200, the top plate 520 is connected with the two side plates 510 and defines a limiting groove 530 that is opened to the top surface of the inner cover 100, and the horizontal portion 301 is defined in the limiting groove 530, where the top wall of the limiting groove (i.e., the top plate 520) is provided with an avoiding hole 521 for the floater 400 to penetrate. The inclined portion 302 and the vertical portion 303 are defined between the two side plates 510, so that the upper limit of the ejector rod 300 can be realized through the top wall of the limit groove 530, and the lower limit of the ejector rod 300 can be realized by the inner cover 100, so that the vertical limit of the ejector rod 300 is realized through the cooperation of the limit frame 500 and the inner cover 100, and the limit effect of the ejector rod 300 is improved; in addition, the structure and the material cost of the limiting frame 500 can be simplified by the design, so that the processing and forming of the limiting frame 500 are facilitated.

Preferably, in this embodiment, the inner side wall of the limiting groove 530 is provided with a plurality of first antifriction ribs 531 arranged at intervals, and the first antifriction ribs 531 are abutted against the side surface of the horizontal portion 301, so that the first antifriction ribs 531 can be utilized to abut against the side surface of the ejector rod to prevent the ejector rod 300 from circumferential shaking, further the limiting effect on the ejector rod 300 is further improved, the reliability of the horizontal movement of the ejector rod 300 is improved, the contact area between the limiting groove 530 and the ejector rod 300 can be reduced, and the friction resistance suffered by the horizontal movement of the ejector rod 300 is reduced, so that the ejector rod 300 can move smoothly.

In addition, the inner cap 100 in this embodiment is further provided with a float valve seat 110, the float valve seat 110 is fixedly installed on the inner cap 100 by riveting or screwing, the float 400 is floatingly installed on the float valve seat 110, the horizontal portion 301 is defined between the top wall of the limit groove 530 and the top surface of the float valve seat 110, that is, the top surface of the horizontal portion 301 abuts against the top wall of the limit groove 530, and the bottom surface of the horizontal portion 301 abuts against the top surface of the float valve seat 110, so that the vertical shaking of the ejector rod 300 can be avoided, and the limit effect on the ejector rod 300 is improved; the float of the float 400 can also be guided by the float valve seat 110 to avoid jamming caused by deflection of the float 400 as it floats.

Preferably, in this embodiment, the top wall of the limiting groove 530 is further provided with a plurality of second antifriction ribs 532, and the second antifriction ribs 532 are abutted against the top surface of the horizontal portion 301, so that the second antifriction ribs 532 can be abutted against the top surface of the ejector rod 300 to prevent the ejector rod 300 from moving upwards, and the contact area between the top wall of the limiting groove 530 and the ejector rod 300 can be reduced, so that the frictional resistance applied to the ejector rod 300 during horizontal movement is reduced, and smooth movement of the ejector rod 300 is facilitated.

Secondly, in the embodiment, the top part of the inner cover 100 partially sinks to form a sinking platform 120, the float valve seat 110 is arranged on the sinking platform 120, and the bottom surface of the limit groove 530 is propped against the sinking platform 120, so that an avoidance space is formed through the sinking platform 120 to avoid the upper end of the limit frame 500, and the thickness of the pot cover is reduced; and when the inner cover 100 is assembled on the inverted lining ring 200, the limiting frame 500 is propped against the sinking platform 120 to realize the lower limit of the inner cover 100, so that the inner cover 100 and the lining ring 200 are conveniently connected and fixed by screws.

Finally, the pot cover in this embodiment further includes a cover 600, the cover 600 is provided with a steam exhaust hole 610 through which the float 400 penetrates, the back of the cover 600 is provided with an upper positioning portion 620, the upper positioning portion 620 is an upper positioning sleeve extending downward and surrounding the periphery of the steam exhaust hole 610, the top surface of the top plate 520 is provided with a lower positioning portion 522, the lower positioning portion 522 is a lower positioning sleeve extending upward and surrounding the periphery of the avoiding hole 521, and the upper positioning portion 620 is in sleeve joint fit with the lower positioning portion 522 to perform circumferential limit on the cover 600, so that the design can ensure that the steam exhaust hole 610 on the cover 600 corresponds to the float 400 up and down, thereby ensuring the cooking effect.

It can be understood that in other embodiments of the present utility model, the limiting frame includes limiting plates disposed at two sides of the ejector rod at intervals, and the limiting plates are provided with a horizontally extending limiting chute, and two sides of the horizontal portion are slidably inserted into the limiting chute. By means of the design, the ejector rod can only horizontally move through the limiting sliding groove, other structures are not required to vertically limit the ejector rod, and therefore the structure is simpler and the assembly is more convenient.

It can be appreciated that in other embodiments of the present utility model, the limiting groove is disposed on the top surface of the limiting frame and is opened towards the surface cover, the top surface of the limiting groove abuts against the back surface of the surface cover, the horizontal portion is defined in the limiting groove, the bottom wall of the limiting groove is provided with the avoiding hole for the float to penetrate, and by means of the design, the limiting frame can also realize multidirectional limiting of the ejector rod, so that the ejector rod can only move horizontally along the radial direction of the inner cover.

It will be appreciated that in other embodiments of the present utility model, the spacing groove may also extend from the lower end of the spacing frame to the upper end of the spacing frame, such that the entire ejector rod is entirely defined within the spacing groove.

It will be appreciated that in other embodiments of the utility model, the stop may also be fixedly mounted to the liner ring by means of a screw connection or rivet connection.

While the utility model has been described in terms of embodiments, it will be appreciated by those skilled in the art that the utility model is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present utility model are intended to be included within the scope of the appended claims.

Claims (10)

1. The utility model provides a pressure cooking utensil, includes the pot cover, the pot cover includes inner cup and suit inner liner ring in the inner cup outside, be equipped with horizontal migration's ejector pin between inner liner ring and the inner cup, the upper end of ejector pin is equipped with the through-hole, the inner cup is installed and is run through the float of through-hole, its characterized in that is equipped with the spacing on the inner liner ring, the spacing with the ejector pin cooperation is in order to right the ejector pin is spacing.

2. The pressure cooking apparatus as claimed in claim 1, wherein the stopper is provided with a stopper groove opened toward the inner lid, at least a portion of the push rod being defined in the stopper groove.

3. The pressure cooking appliance of claim 2, wherein the upper end of the push rod is defined in the limit groove, and a top wall of the limit groove is provided with a dodging hole through which the float passes.

4. The pressure cooking device as claimed in claim 2, wherein the inner side wall of the limit groove is provided with a first friction reducing rib, and the first friction reducing rib is abutted against the side surface of the push rod.

5. A pressure cooking apparatus according to claim 2, wherein a float valve seat is provided on the inner lid, the float is floatingly mounted on the float valve seat, and an upper end of the plunger is defined between a top wall of the limiting groove and a top surface of the float valve seat.

6. The pressure cooking appliance of claim 1, wherein the limiting frame comprises limiting plates arranged at two sides of the ejector rod at intervals, wherein the limiting plates are provided with limiting sliding grooves extending horizontally, and two sides of the upper end of the ejector rod are slidably inserted into the limiting sliding grooves.

7. A pressure cooking appliance according to any one of claims 1 to 6, wherein the stop is integrally injection moulded with the inner collar.

8. A pressure cooking apparatus according to any one of claims 1 to 6, wherein the top part of the inner lid is partially sunk to form a sink table, the float is provided through the sink table, and the stopper is abutted against the sink table.

9. The pressure cooking apparatus according to any one of claims 1 to 6, wherein the lid further comprises a cover, the cover is provided with an upper positioning portion, the stopper is provided with a lower positioning portion, and the upper positioning portion cooperates with the lower positioning portion to perform circumferential restriction on the cover.

10. A pressure cooking apparatus according to any one of claims 1 to 6, wherein the lower end of the ejector rod is connected with an ejector rod column, one end of the ejector rod column is arranged through the inner cover, the other end of the ejector rod column is arranged through the inner lining ring, and an elastic member clamped between the inner lining ring and the ejector rod is sleeved on the ejector rod column.