CN215533602U

CN215533602U - Pressure cooker with novel opening and closing structure

Info

Publication number: CN215533602U
Application number: CN202120781372.8U
Authority: CN
Inventors: 叶灿雄; 黄志荣; 伍尚凯; 余敬源; 李广彬; 黄秋萍; 刘锦雄; 冯荣基; 梁松伟; 潘德赢; 吴金洋
Original assignee: Xinxing Xianfeng Stainless Steel Product Manufacturer Co ltd
Current assignee: Xinxing Xianfeng Stainless Steel Product Manufacturer Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2022-01-18
Anticipated expiration: 2031-04-13

Abstract

The utility model discloses a pressure cooker with a novel opening and closing structure, which comprises a cooker body, side lugs and a cooker cover assembly, wherein the cooker cover assembly is covered on the cooker body; the cooker cover component comprises a pressure cover, a safety valve, an opening and closing device for locking or loosening the pressure cover and the cooker body, and a knob component for controlling the opening and closing device to lock or loosen the pressure cover and the cooker body; the outer edge of the pressure cover is placed on the starting level, and the periphery of the pressure cover is positioned within the flange. The pressure cooker can realize the opening and closing of the cooker cover by one hand through adjusting the rotation of the knob component; the arrangement of the level structure can enhance the pressure bearing capacity of the pot edge and avoid the water dripping phenomenon caused by slight defects of the sealing ring; the safety device plays a role in protection and reduces accidental injury to personnel.

Description

Pressure cooker with novel opening and closing structure

Technical Field

The utility model relates to the technical field of kitchen cooking appliances, in particular to a pressure cooker with a novel opening and closing structure.

Background

Pressure cooker on the market, it is more loaded down with trivial details when the operation of the mode that opens and shuts, some utilize the dislocation interlock between pot cover and the pot body, need both hands cooperation just can accomplish the operation that opens and shuts, some because the structure is too complicated, let the user be difficult to understand its application. When the pressure cooker is used, the cooker cover and the cooker body are in a half-open state easily, so that the cooker body and the cooker cover are not buckled, the pressure in the cooker is leaked, and safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a novel pressure cooker with an opening and closing structure.

The utility model is realized by the following technical scheme: a novel pressure cooker with an opening and closing structure comprises a cooker body, side lugs and a cooker cover assembly, wherein the cooker cover assembly is covered on the cooker body, the side lugs are installed on the side wall of the cooker body, a cooker opening of the cooker body extends outwards to form a grading structure, the grading structure comprises a starting grade position and a retaining edge, the starting grade position is horizontally arranged, the lower end of the retaining edge is connected to the outer end of the starting grade position, and the inner end of the starting grade position is connected with the cooker body; the cooker cover assembly comprises a pressure cover, a safety valve for exhausting air, an opening and closing device hooped on the pressure cover and used for locking or unlocking the pressure cover and the cooker body, and a rotating button assembly used for controlling the opening and closing device to lock or unlock the pressure cover and the cooker body through rotation; the outer edge of the pressure cover is placed on the starting position, and the periphery of the pressure cover is located within the flange.

The opening and closing device is controlled by the knob component to fasten or loosen the pressure cover and the cooker body, and the cover can be opened and closed by one hand. The arrangement of the level structure can enhance the pressure bearing capacity of the pot edge, prevent the water dripping phenomenon caused by slight defects of the sealing ring, and prevent the water from dripping on the stove and prevent the liquid drops on the cover edge and the pot edge from flowing back into the pot.

The outer fringe of pressure lid inwards buckles and forms the incurve structure, install a pot mouth sealing washer in the incurve structure, be located incurve structure department pot mouth sealing washer external diameter is embedding portion, pot mouth sealing washer downside is the sealing, embedding portion upside court the inboard slope of pressure lid extends, the sealing is from the junction slope down and extends, the pressure lid is fashionable, the sealing of pot mouth sealing washer is being pushed up the level position. The inward-bent structure can be used for clamping the embedded part of the pot mouth sealing ring to realize the installation function; the sealing part is against the lifting position, so that the sealing function can be enhanced. The pot mouth sealing ring is arranged, can be used for sealing the pressure cooker and has the pressure maintaining effect.

The opening and closing device comprises at least two opening and closing mechanisms, and each opening and closing mechanism comprises a pressure ring, a sliding block and a first guide column; the sliding block is provided with a first mounting hole and a long hole, the first mounting hole is communicated with the long hole, the pressure ring is arranged at the outer end of the sliding block, and the first guide columns are respectively arranged at the inner end of the sliding block; the pressure cover is provided with an installation panel, the middle part of the installation panel is downwards sunken to form an installation groove, the installation groove is provided with a guide long hole and a first center hole, the installation panel is provided with a second installation hole for installing the safety valve, and the lower side of the installation panel is provided with a sliding groove; the knob assembly comprises a knob, a knob fixing piece and a central nut, the knob is provided with a second central hole, a positioning hole and a third mounting hole, and a fixing column is arranged on the lower side of the knob fixing piece; the number of the guide long holes is matched with that of the pressure rings, and the number of the third mounting holes is matched with that of the guide long holes; a third central hole is formed in the center of the pressure cover, positioning columns are arranged on the upper side of the pressure cover, and the number of the positioning columns is matched with that of the pressure rings and is opposite to that of the pressure rings; the pressure ring is placed on the pressure cover, and the elongated hole is sleeved on the positioning column; the mounting panel is mounted on the pressure cover, the pressure ring is clamped between the pressure cover and the mounting panel, and the sliding block is mounted in the sliding groove and can slide along the sliding groove; the knob is installed in the installation groove, and the first guide column penetrates through the guide long hole and then is inserted into the third installation hole; the fixing column sequentially penetrates through the second center hole, the first center hole and the third center hole from top to bottom and then is screwed by the center nut; and when the knob is rotated, the third mounting hole forces the first guide column to slide along the guide long hole, so that the pressure ring locks or unlocks the pressure cover and the pot body. When the pressure cooker adopts two opening and closing mechanisms, the cooker cover and the cooker body can be fastened in a buckling mode, and when more than two opening and closing mechanisms are used, the cooker cover and the cooker body can be fastened more firmly. The positioning column is arranged to provide sliding orientation and support for the elongated hole. The installation panel can be accomodate slider, first guide post, and the spout forms the gliding passageway of slider.

The opening and closing device is provided with three opening and closing mechanisms which are positioned on the same plane and form an included angle of 120 degrees between every two opening and closing mechanisms; the first side of the inner end of the sliding block extends outwards in an inclined mode, the sliding block is of a reducing structure in the direction from the middle part of the sliding block to the inner end, and the second side of the sliding block extends towards the first side of the inner end of the sliding block in an arc-shaped inclined mode from the middle part of the sliding block to the inner end; the first guide columns at the inner ends of the three sliding blocks are positioned below the mounting groove, the first side at the inner end of the middle sliding block is close to the second side of the sliding block at the left side of the middle sliding block and can move along the arc-shaped inclination direction of the side, and the first side at the inner end of the right sliding block is close to the second side of the middle sliding block and can move along the arc-shaped inclination direction of the side. The arrangement of the three opening and closing mechanisms can ensure that the cooker cover and the cooker body are fastened more tightly. The two sides of the inner end of each sliding block are structurally arranged, so that sliding spaces can be provided for the adjacent sliding blocks, and the outward extension or inward retraction of the sliding blocks is realized.

The knob assembly further comprises a hand feeling column and a tensioning spring; the lower sides of the fixed column and the rotating button fixing part are provided with sleeves, the fixed column is located in the sleeves, a circle of concave-convex groove is formed in the lower sides of the sleeves, the tensioning springs and the hand-feeling columns are sequentially placed in the positioning holes, the lower ends of the tensioning springs prop against the bottoms of the positioning holes, the upper ends of the tensioning springs prop against the lower ends of the hand-feeling columns, and the upper ends of the hand-feeling columns prop against the concave-convex groove. The concave-convex groove is matched with the hand-feeling column and the tensioning spring, so that when the knob is rotated, the knob fixing piece has a vibration effect and sends a beep to remind a user that the knob is rotating to perform opening and closing operation or perform an exhaust function.

The cover edge of the pressure cover is provided with a safety device which is used for enabling the pot opening sealing ring to deform and shift when the pressure in the pot exceeds a pressure set value, and the safety device is positioned below the pressure ring.

The safety device is a convex surface formed by jacking the cover surface of the pressure cover from bottom to top, and the convex surface is aligned to the upper side of the pot opening sealing ring embedding part; or the safety device is an air leakage seam arranged on the cover surface of the pressure cover, and the air leakage seam is aligned to the upper side of the pot opening sealing ring embedding part; or the safety device is a pressure relief hole formed in the cover surface of the pressure cover, and the pressure relief hole is aligned with the upper side of the pot opening sealing ring embedding part. When the pressure in the cooker reaches a set value, the sealing ring at the cooker opening can shift (deform) towards the direction of the safety device, and the pressure is released at the moment; the safety device is arranged below the pressure ring (namely, in the pressure ring), and when pressure is relieved, the pressure ring blocks direct injection (buffer action) of air pressure, so that the safety device plays a role in protection and avoids people from being scalded. The three types of the convex surface, the air leakage seam and the air leakage hole are arranged, and the pot opening sealing ring is deformed and translated in order to form a space for deformation or displacement of the pot opening sealing ring, so that the pressure in the pot is leaked out from the safety device, and the function of auxiliary exhaust and pressure relief is realized.

The upper side of each side lug is provided with a first anti-skid grain, and the first anti-skid grain is formed by uniformly arranging a plurality of grooves in a longitudinal and transverse manner; and the upper side surface of the rotating button fixing piece is provided with second anti-skid grains, and the second anti-skid grains are formed by uniformly arranging a plurality of grooves in a longitudinal and transverse manner. The arrangement of the first anti-slip patterns on the side ears is convenient for a user to firmly lift the pressure cooker, and the hand slip is avoided. The friction force with the hand can be increased by the arrangement of the second anti-slip lines, and the grabbing is more stable.

The safety valve comprises an upper valve body, a lower valve body, a first spring, a valve plug, a first sealing ring and a second sealing ring; the lower end of the upper valve body is connected with the upper end of the lower valve body through threads, a cavity is arranged between the lower valve body and the upper valve body, a first exhaust hole communicated with the cavity is formed in the top of the upper valve body, and a circle of raised annular brim is arranged at the lower part of the upper valve body; one end of the valve plug is respectively provided with a first clamping groove and a second clamping groove which surround the valve plug for one circle, and the other end of the valve plug is of a segment structure; the bottom of the lower valve body is provided with a second exhaust hole communicated with the cavity, the bottom of the lower valve body is provided with a third clamping groove surrounding the lower valve body for one circle, the periphery of the lower valve body is provided with a plurality of fourth exhaust holes communicated with the cavity, and the fourth exhaust holes are positioned above the third clamping groove; the valve plug is positioned in the cavity, the upper end of the first spring is propped against the inner wall of the upper valve body, and the lower end of the first spring is clamped in the first clamping groove of the valve plug to enable the ball-segment structure of the valve plug to prop against or open the second exhaust hole; the first sealing ring is clamped in the second clamping groove and is propped against the inner wall of the lower valve body at the periphery of the second exhaust hole under the action of the first spring; the second sealing ring is clamped in the third clamping groove; the pressure cover is provided with a fourth mounting hole, the fourth mounting hole is positioned below the first mounting hole of one of the sliding blocks, and the periphery of the fourth mounting hole extends upwards to form a retaining ring; when the valve is installed, the top end of the upper valve body is inserted into the second installation hole, and the top end of the upper valve body slides along the second installation hole to rise and extend out of the outer side of the pressure cover, or slides along the second installation hole to descend and retract into the pressure cover; the lower end of the upper valve body penetrates through the first mounting hole, and the upper end of the lower valve body sequentially penetrates through the fourth mounting hole and the first mounting hole and then is screwed with the upper valve body; the diameter of the annular brim is larger than that of the first mounting hole, the diameter of the bottom of the lower valve body is larger than that of the fourth mounting hole, and the second sealing ring is clamped between the bottom of the lower valve body and the pressure cover; when the safety valve is in standing, the fourth exhaust hole is positioned below the pressure cover and communicated with the pot, the safety valve is lifted to the upper limit position, and the blocking ring of the fourth mounting hole abuts against the fourth exhaust hole. The ball segment structure of the valve plug forms sealing to the second exhaust hole to create a pressure environment, and the valve plug opens the second exhaust hole to exhaust and release pressure in the pot; the diameter of the annular brim is larger than that of the first mounting hole, so that the upper valve body can be prevented from flying out of the cooker, the first sealing ring and the second sealing ring can avoid air leakage of the second exhaust hole, and the pressure maintaining function is maintained.

A fifth mounting hole is formed in the pressure cover, and a regulating valve assembly for regulating the air pressure in the cooker and exhausting air is mounted in the fifth mounting hole; the regulating valve assembly comprises a regulating valve knob, a rotating shaft, a second spring, a valve core, a leakage-proof rubber ring, a regulating valve shell, a regulating lower valve, a regulating valve sealing ring and a slag separation nut; the lower end of the lower adjusting valve is provided with a threaded column, the threaded column is hollow to form an air outlet, and the air outlet is communicated with the upper side and the lower side of the lower adjusting valve; the threaded column of the lower adjusting valve sequentially penetrates through the fifth mounting hole and the adjusting valve sealing ring and then is locked on the pressure cover by the slag separation nut, the slag separation nut is provided with an air hole, the upper side of the air hole is communicated with the air outlet, and the lower side of the air hole is communicated with the pot; the regulating valve rotating knob is of a cylindrical structure with an opening at the lower side and a cavity, a special-shaped column is arranged at the lower side in the cylinder, a convex clamping position is arranged on the inner side wall of the cylinder, a shifting handle is arranged outside the cylindrical structure, a third anti-skidding line is arranged on the top side of the regulating valve rotating knob, and the third anti-skidding line is formed by a plurality of grooves which are uniformly arranged in parallel in a longitudinal and transverse direction; a through hole is formed in the rotating shaft and penetrates through the rotating shaft from top to bottom, the lower portion of the rotating shaft extends towards the through hole to form a first reverse buckle, and a first spiral line spirally arranged from top to bottom is arranged on the periphery of the rotating shaft; a special-shaped hole is formed in the upper part of the through hole, and the shape of the special-shaped hole is matched with that of the special-shaped column; the valve core comprises a valve core body positioned on the upper side, a second guide post fixed on the valve core body, a second reverse buckle arranged on the upper part of the second guide post, and a valve core bottom end positioned on the lower side; the second guide post of the valve core is inserted into the through hole and slides along the through hole, and when the valve core slides down to the lower limit, the first reverse buckle buckles the second reverse buckle; the upper part of the regulating valve shell is a hollow guide cylinder, the lower end of the guide cylinder extends inwards to form a third reverse buckle, and the guide cylinder is communicated with the space at the lower part of the regulating valve shell through a hole formed by the third reverse buckle; a third air vent is arranged on the side wall of the lower space of the regulating valve shell, an air flow channel is formed between the regulating valve shell and the lower regulating valve, and the third air vent is used for communicating the air flow channel with the outside of the pot; a second spiral line spirally arranged from top to bottom is formed in the inner wall of the guide cylinder, and the second spiral line is matched with the first spiral line; a pair of first positioning clamping grooves are respectively formed in the peripheries of a group of opposite sides of the guide cylinder on the lower side of the inner wall of the guide cylinder, and each first positioning clamping groove comprises a first vertical guide groove and a first transverse guide groove connected with the first vertical guide groove; a pair of positioning screens are respectively arranged on a group of opposite side walls of the inner wall of the lower space of the regulating valve shell; a pair of second positioning clamping grooves are formed in one group of opposite sides of the lower adjusting valve respectively, and each second positioning clamping groove comprises a second vertical guide groove and a second transverse guide groove connected with the second vertical guide groove; after the positioning clamping position of the regulating valve shell is aligned to the second vertical guide groove and pressed downwards to the second transverse guide groove, the regulating valve shell is rotated, and the positioning clamping position is clamped into the inner side of the second transverse guide groove, so that the regulating valve shell and the regulating lower valve can be clamped tightly; an annular bulge is formed between the valve core body and the bottom end of the valve core, the second spring is sleeved on the periphery of the valve core body, the upper end of the second spring abuts against the bottom of the first spiral line along with the movement of the valve core, the lower end of the second spring abuts against the annular bulge of the valve core, and the bottom end of the valve core penetrates through a hole formed by the third reverse buckle from top to bottom and then closes or opens the air outlet along with the up-and-down movement of the valve core; a ring groove is formed in the periphery of the valve body on the upper side of the bottom end of the valve core, the leakage-proof rubber ring is sleeved in the ring groove, and the upper side face of the leakage-proof rubber ring props against the lower side face of the third reverse buckle along with the upward movement of the valve core to the limit position; after the convex clamping position of the regulating valve turn button is aligned to the first vertical guide groove and is pressed downwards to the first transverse guide groove, the regulating valve turn button is rotated to clamp the convex clamping position into the inner side of the first transverse guide groove, so that the regulating valve turn button and the guide cylinder of the regulating valve shell can be clamped tightly; the dysmorphism post embedding it is downthehole that the dysmorphism, the rotation axis cover is in the second guide post periphery, first helix with the cooperation of second helix, the governing valve knob is rotatory, the dysmorphism post forces the first helix meshing of rotation axis the second helix of guide cylinder rotates and realizes the lift of valve pistil. The regulating valve shell is detachably arranged on the regulating lower valve, so that the disassembling and assembling functions can be realized, and the flushing and cleaning can be carried out; according to the culinary art of different food materials, the size of pressure release is controlled through the rotation degree of governing valve turn-button to the valve pistil subassembly, perhaps airtight pressure cooker realizes the pressurize function, and third exhaust hole, airflow channel, venthole form exhaust passage, realize the pressure release function. The toggle handle of the regulating valve knob can be conveniently toggled by a user, so that the regulating valve assembly is regulated, and the pressure in the cooker is subjected to auxiliary pressure relief or pressure maintaining; the friction with the hand can be increased by the arrangement of the third anti-slip stripes. The first reverse buckle is matched with the second reverse buckle, so that the second guide post can be prevented from falling off. The through hole provides guidance for the second guide post, and the second spring provides elasticity for the valve core and pushes the valve core to move towards the air outlet hole, so that the valve core has a pressure air valve function. The cooperation of first helix and second helix for the rotation axis realizes raising and lowering functions along guide cylinder inner wall spiral, and two helices close soon, can make the regulating valve subassembly have electrodeless fine setting function, and in certain speed range, can be continuous, arbitrary make very little adjustment, make the product have more humanized culinary art and control. The cooperation of screens and second positioning channel section for the lock can be dismantled to the governing valve shell on adjusting the lower valve, and the screw thread post of adjusting the lower valve is used for fixing the lower valve of adjusting on the pressure lid. Dysmorphism post and dysmorphism hole phase-match can be realized going up and down along the guide cylinder rotation by governing valve turn-button drive rotation axis, and the demountable installation of governing valve turn-button can be realized to the cooperation of protrusion screens and first positioning slot to the slip of first transverse guide way is followed to the protrusion screens, makes the governing valve turn-button realize rotation function.

Compared with the prior art, the utility model has the advantages that: the pressure cooker can realize the opening and closing of the cooker cover by one hand by adjusting the rotation of the knob component, and the operation is simple; the novel opening and closing mechanism can firmly fasten the pot cover and the pot body, and can avoid safety accidents caused by pressure leakage due to the fact that the pot cover and the pot body are not fastened; the arrangement of the level structure can enhance the pressure bearing capacity of the pot edge and avoid the water dripping phenomenon caused by slight defects of the sealing ring; the matching mode of the starting position and the outer diameter of the pressure cover is embedded, so that a user can conveniently and quickly cover the pressure cover; when the safety valve is blocked and the safety device is depressurized, the water vapor is sprayed out in the vertical direction, and the arrangement of the pressure ring can play a role in protection, reduce accidental injury to personnel and prevent the cooker body from rolling to damage a cooker due to air spraying; the water vapor is sprayed in the vertical direction, so that the smoke exhaust ventilator can conveniently and quickly suck and discharge the water vapor, and the pollution of food particles to a kitchen is reduced.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an embodiment of the present invention taken along a longitudinal direction;

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

FIG. 4 is a cross-sectional view of an embodiment of the present invention taken longitudinally in the direction of the lateral ears;

FIG. 5 is a cross-sectional view of an embodiment of the present invention taken in another longitudinal direction;

fig. 6 is a partial enlarged view of the utility model at C in fig. 5;

FIG. 7 is a schematic structural view of the present invention with the knob assembly removed;

FIG. 8 is a cross-sectional view of a pot body taken longitudinally in accordance with an embodiment of the present invention;

FIG. 9 is an exploded view of an embodiment of the present invention;

FIG. 10 is an exploded view of the knob assembly and the mounting panel according to the embodiment of the present invention;

FIG. 11 is a schematic view of the pressure cover assembled with the pressure ring according to the embodiment of the present invention;

FIG. 12 is a top view of a pressure cap according to an embodiment of the present invention;

FIG. 13 is a schematic view of the safety device of the present invention in a raised position on the pressure cap;

FIG. 14 is a schematic view of the safety device in the position of the pressure cap when the safety device is a vent slit according to an embodiment of the present invention;

FIG. 15 is a schematic view of the safety device of an embodiment of the present invention in a position on the pressure cap when the safety device is a relief hole;

FIG. 16 is a top view of the pressure cap and pressure ring assembly of an embodiment of the present invention;

FIG. 17 is a top view of a pot mouth sealing ring according to an embodiment of the utility model;

FIG. 18 is a sectional view taken along line D-D of FIG. 17;

FIG. 19 is a top view of a mounting panel of an embodiment of the present invention;

FIG. 20 is a sectional view taken along line E-E in FIG. 19;

FIG. 21 is a perspective view of a mounting panel of an embodiment of the present invention;

FIG. 22 is a schematic view of a pressure ring according to an embodiment of the present invention;

FIG. 23 is a top view of a knob according to an embodiment of the present invention;

FIG. 24 is a view showing the structure of the lower side of the knob according to the embodiment of the present invention;

FIG. 25 is a schematic view of a lower side of a knob fixing member according to an embodiment of the present invention;

FIG. 26 is a front view of a safety valve according to an embodiment of the present invention;

FIG. 27 is a sectional view taken along line F-F of FIG. 26;

FIG. 28 is a perspective view of a relief valve according to an embodiment of the present invention;

FIG. 29 is an exploded view of a safety valve according to an embodiment of the present invention;

FIG. 30 is an exploded view of a regulator valve assembly according to an embodiment of the present invention;

FIG. 31 is a schematic view of a structure of the lower side of a rotary knob of a control valve according to an embodiment of the present invention;

FIG. 32 is a schematic view of a rotary shaft according to an embodiment of the present invention;

FIG. 33 is a schematic view showing the structure of the lower side of the rotating shaft according to the embodiment of the present invention;

FIG. 34 is a schematic view of a valve core according to an embodiment of the present invention;

FIG. 35 is a schematic structural view of a regulator valve housing according to an embodiment of the present invention;

FIG. 36 is a schematic view of a structure of a regulating valve housing of an embodiment of the present invention in a lower direction;

FIG. 37 is a cross-sectional view of a regulator valve housing taken in the longitudinal direction in accordance with an embodiment of the present invention;

FIG. 38 is a schematic view of a regulating lower valve according to an embodiment of the present invention;

FIG. 39 is a schematic view of the lower side direction of the lower valve according to the embodiment of the present invention.

The reference numerals in the drawings mean: 01. a knob fixing member; 011. fixing a column; 012. a concave-convex groove; 013. a second anti-skid pattern; 02. a hand feeling column; 03. tensioning the spring; 04. a knob; 041. positioning holes; 042. a second central aperture; 043. a third mounting hole; 05. installing a panel; 051. a guide long hole; 052. a second mounting hole; 053. a first central aperture; 054. a chute; 055. mounting grooves; 06. adjusting a valve knob; 061. a profiled pole; 062. protruding the clamping position; 063. Dialing a hand; 064. third, preventing slippery lines; 07. a rotating shaft; 071. a through hole; 072. a first reverse buckle; 073. a first spiral line; 074. a profiled hole; 08. a second spring; 09. a valve core; 091. a valve core body; 092. a second guide post; 093. a second reverse buckle; 094. the bottom end of the valve core; 095. an annular projection; 096. a ring groove; 10. a leakage-proof rubber ring; 11. A regulator valve housing; 111. a guide cylinder; 112. a third reverse buckle; 113. a third vent hole; 114. a second spiral line; 115. a first vertical guide groove; 116. a first lateral guide groove; 117. positioning and clamping; 12. adjusting a lower valve; 121. A threaded post; 122. an air outlet; 123. a second vertical guide groove; 124. a second lateral guide groove; 13. a regulating valve sealing ring; 14. a slag separation nut; 141. air holes are formed; 15. an upper valve body; 151. a first exhaust port; 152. an annular brim; 16. a second seal ring; 17. a lower valve body; 171. a second vent hole; 172. a third card slot; 173. a fourth vent hole; 18. a valve plug; 181. a first card slot; 182. a second card slot; 19. a first seal ring; 20. a first spring; 21. a pressure ring; 211. a slider; 212. a first guide post; 213. a long hole; 214. a first mounting hole; 22. a pressure cap; 221. an inturned structure; 222. a third central aperture; 223. a positioning column; 224. a fourth mounting hole; 225. a fifth mounting hole; 23. a pot mouth sealing ring; 231. an insertion section; 232. a sealing part; 24. a third seal ring; 25. a central nut; 26. a lateral ear; 261. a first anti-skid pattern; 27. a screw; 28. a retainer; 29. an ear mount; 30. A pot body; 301. a start level; 302. blocking edges; 31. a safety device; 311. a convex surface; 312. venting the gas gap; 313. a pressure relief vent.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Examples

Referring to fig. 1 to 39, the pressure cooker with a novel opening and closing structure comprises a cooker body 30, side lugs 26 and a cooker cover assembly, wherein the cooker cover assembly is covered on the cooker body 30, the side lugs 26 are installed on the side wall of the cooker body 30, a cooker opening of the cooker body 30 extends outwards to form a level structure, the level structure comprises a starting level 301 and a retaining edge 302, the starting level 301 is horizontally arranged, the lower end of the retaining edge 302 is connected to the outer end of the starting level 301, and the inner end of the starting level 301 is connected with the cooker body 30; the cooker cover assembly comprises a pressure cover 22, a safety valve for exhausting air, an opening and closing device hooped on the pressure cover 22 and used for locking or unlocking the pressure cover 22 and the cooker body 30, and a rotating button assembly used for controlling the opening and closing device to lock or unlock the pressure cover 22 and the cooker body 30 through rotation; the outer edge of the pressure cover 22 is placed on the start level 301, and the outer periphery of the pressure cover 22 is positioned within the rib 302.

The opening and closing device is controlled by the knob component to fasten or loosen the pressure cover 22 and the pot body 30, and the cover can be opened and closed by one hand. The arrangement of the level structure can enhance the pressure bearing capacity of the pot edge, prevent the water dripping phenomenon caused by slight defects of the sealing ring, and prevent the water from dripping on the stove and prevent the liquid drops on the cover edge and the pot edge from flowing back into the pot.

The outer edge of the pressure cover 22 is bent inwards to form an inward-bent structure 221, a pot mouth sealing ring 23 is installed in the inward-bent structure 221, the outer diameter of the pot mouth sealing ring 23 located at the inward-bent structure 221 is an embedded part 231, the lower side surface of the pot mouth sealing ring 23 is a sealing part 232, the upper side of the embedded part 231 extends towards the inner side of the pressure cover 22 in an inclined mode, the sealing part 232 extends downwards from the connection part in an inclined mode, and when the pressure cover 22 is covered, the sealing part 232 of the pot mouth sealing ring 23 pushes up the stepping position 301. The inward-bent structure 221 can be used for clamping the embedded part 231 of the pot mouth sealing ring 23 to realize the installation function; the seal 232 bears against the riser 301, enhancing the sealing function. The pot mouth sealing ring 23 can be used for sealing the pressure cooker, and has the pressure maintaining effect. Compared with the traditional pressure cooker, the cooker body 30 has the level 301 which is directly contacted with the lower side of the cooker opening sealing ring 23, so that the safety function is greatly realized, and the safety is enhanced. When the pressure is too high, the traditional pressure cooker can burst, and the sealing ring can deform, so that the water leakage condition can occur, and water can directly drip out of the cooker and drip on a stove. The arrangement of the embodiment can avoid the situation, and can also prevent water from dripping on the stove, and the liquid of the pot cover can flow back into the pot at the starting level 301.

The opening and closing device comprises at least two opening and closing mechanisms, wherein each opening and closing mechanism comprises a pressure ring 21, a sliding block 211 and a first guide column 212; a first mounting hole 214 and an elongated hole 213 are formed in the slider 211, the first mounting hole 214 is communicated with the elongated hole 213, the pressure ring 21 is arranged at the outer end of the slider 211, and the first guide posts 212 are respectively arranged at the inner end of the slider 211; the pressure cover 22 is provided with an installation panel 05, the middle of the installation panel 05 is recessed downwards to form an installation groove 055, the installation groove 055 is provided with a guide long hole 051 and a first center hole 053, the installation panel 05 is provided with a second installation hole 052 for installing a safety valve, and the lower side of the installation panel 05 is provided with a sliding groove 054; the knob assembly comprises a knob 04, a knob fixing piece 01 and a central nut 25, the knob 04 is provided with a second central hole 042, a positioning hole 041 and a third mounting hole 043, and the lower side of the knob fixing piece 01 is provided with a fixing column 011; the number of the guide long holes 051 is matched with that of the pressure rings 21, and the number of the third mounting holes 043 is matched with that of the guide long holes 051; a third central hole 222 is formed in the center of the pressure cover 22, positioning columns 223 are arranged on the upper side of the pressure cover 22, and the number of the positioning columns 223 is matched with that of the pressure rings 21 and the positions of the positioning columns are opposite; the pressure ring 21 is placed on the pressure cover 22, and the elongated hole 213 is sleeved on the positioning column 223; the mounting panel 05 is mounted on the pressure cover 22, the pressure ring 21 is clamped between the pressure cover 22 and the mounting panel 05, and the sliding block 211 is mounted in the sliding groove 054 and can slide along the sliding groove; the knob 04 is installed in the installation groove 055, and the first guide column 212 passes through the guide long hole 051 and then is inserted into the third installation hole 043; the fixed column 011 sequentially passes through the second center hole 042, the first center hole 053 and the third center hole 222 from top to bottom and then is screwed by the center nut 25, and the third sealing ring 24 is sleeved on the periphery of the fixed column 011 between the center nut 25 and the pressure cover 22; when the knob 04 is rotated, the third mounting hole 043 forces the first guide column 212 to slide along the guide slot 051, so that the pressure ring 21 locks or unlocks the pressure cover 22 and the pot body 30. When the pressure cooker adopts two opening and closing mechanisms, the cooker cover and the cooker body 30 can be fastened in a buckling mode, and when more than two opening and closing mechanisms are used, the cooker cover and the cooker body 30 can be fastened more firmly. The positioning posts 223 are disposed to provide sliding orientation and support for the elongated holes 213. The mounting panel 05 can receive the slider 211 and the first guide post 212, and the sliding groove 054 forms a sliding passage of the slider 211.

The opening and closing device is provided with three opening and closing mechanisms which are positioned on the same plane and form an included angle of 120 degrees between every two opening and closing mechanisms; the first side of the inner end of the sliding block 211 extends obliquely outwards, the sliding block 211 is of a gradually reducing structure from the middle part to the inner end, and the second side of the sliding block 211 extends obliquely in an arc shape from the middle part to the inner end of the sliding block 211 to the first side of the inner end of the sliding block 211; the first guiding posts 212 at the inner ends of the three sliders 211 are located below the mounting groove 055, the first side at the inner end of the middle slider 211 is close to the second side of the slider 211 at the left side thereof and can move in the arc-shaped oblique direction, and the first side at the inner end of the right slider 211 is close to the second side of the middle slider 211 and can move in the arc-shaped oblique direction. The arrangement of the three opening and closing mechanisms can ensure that the pot cover is tightly buckled with the pot body 30. The two sides of the inner end of the sliding block 211 are configured to provide a sliding space for the adjacent sliding block 211, so as to realize outward extension or inward retraction of the sliding block 211.

The knob assembly also comprises a hand feeling column 02 and a tension spring 03; the lower sides of the fixed column 011 and the rotating button fixing part 01 are provided with a sleeve, the fixed column 011 is positioned in the sleeve, the lower side of the sleeve is provided with a circle of concave-convex grooves 012, the tension spring 03 and the hand-feeling column 02 are sequentially placed in the positioning hole 041, the lower end of the tension spring 03 is propped against the bottom of the positioning hole 041, the upper end of the tension spring 03 is propped against the lower end of the hand-feeling column 02, and the upper end of the hand-feeling column 02 is propped against the concave-convex grooves 012. The concave-convex groove 012, the hand-feeling column 02 and the tension spring 03 are cooperatively arranged, so that when the knob 04 is rotated, the knob fixing member 01 has a vibration effect and emits a beep to remind a user that the knob is rotating to perform an opening and closing operation or perform an exhaust function.

The lid edge of the pressure lid 22 is provided with a safety device 31 for deforming and displacing the pot mouth sealing ring 23 when the pressure in the pot exceeds a set pressure value, the safety device 31 being located below the pressure ring 21.

The safety device 31 is a convex surface 311 formed by jacking up the cover surface of the pressure cover 22 from bottom to top, and the convex surface 311 is aligned with the upper side of the embedded part 231 of the pan opening sealing ring 23; or, the safety device 31 is a gas release slit 312 formed on the cover surface of the pressure cover 22, and the gas release slit 312 is aligned with the upper side of the embedding part 231 of the pot mouth sealing ring 23; alternatively, the safety device 31 is a relief hole 313 formed in the cover surface of the pressure cover 22, and the relief hole 313 is aligned with the upper side of the insertion portion 231 of the pot mouth sealing ring 23. When the pressure in the cooker reaches a set value, the cooker opening sealing ring 23 can shift (deform) towards the direction of the safety device 31, and then the pressure is released; safety device 31 sets up in pressure ring 21 below (be pressure ring 21 promptly), when the pressure release, blocks directly spouting (cushioning effect) of atmospheric pressure because of pressure ring 21, plays the guard action, and the aqueous vapor can not directly spout the people, but distributes away in following pressure ring 21, avoids the people to cause the scald. The three types of arrangement of the convex surface 311, the air release slit 312 and the air release hole are all for forming a space for deformation or displacement of the pan opening sealing ring 23, and the pan opening sealing ring 23 is deformed and translated, so that the pressure in the pan is leaked out from the safety device 31, and the function of auxiliary exhaust and pressure release is realized.

The upper side of the side ear 26 is provided with a first anti-skid grain 261, and the first anti-skid grain 261 is formed by a plurality of grooves which are uniformly arranged in parallel in a longitudinal and transverse manner; the upper side of the knob fixing part 01 is provided with second anti-slip grains 013, and the second anti-slip grains 013 are formed by uniformly arranging a plurality of grooves in a longitudinal and transverse mode. The arrangement of the first anti-slip patterns 261 on the side ears 26 is convenient for a user to firmly hold the pressure cooker, and the hand slip is avoided from falling off. The friction force between the hands can be increased by arranging the second anti-slip lines 013, and the grabbing is more stable.

The safety valve comprises an upper valve body 15, a lower valve body 17, a first spring 20, a valve plug 18, a first sealing ring 19 and a second sealing ring 16; the lower end of the upper valve body 15 is connected with the upper end of the lower valve body 17 through threads, a cavity is arranged between the lower end of the upper valve body 15 and the upper end of the lower valve body 17, a first exhaust hole 151 communicated with the cavity is formed in the top of the upper valve body 15, and a circle of raised annular brim 152 is arranged at the lower part of the upper valve body; one end of the valve plug 18 is respectively provided with a first clamping groove 181 and a second clamping groove 182 which surround the valve plug for a circle, and the other end of the valve plug is of a segment structure; the bottom of the lower valve body 17 is provided with a second vent hole 171 communicated with the cavity, the bottom of the lower valve body is provided with a third clamping groove 172 surrounding the lower valve body 17 for one circle, the periphery of the lower valve body 17 is provided with a plurality of fourth vent holes 173 communicated with the cavity, and the fourth vent holes 173 are positioned above the third clamping groove 172; the valve plug 18 is positioned in the cavity, the upper end of the first spring 20 is abutted against the inner wall of the upper valve body 15, and the lower end of the first spring is clamped in the first clamping groove 181 of the valve plug 18 and promotes the spherical segment structure of the valve plug 18 to abut against or open the second exhaust hole 171; the first sealing ring 19 is clamped in the second clamping groove 182 and is pressed against the inner wall of the lower valve body 17 at the periphery of the second exhaust hole 171 under the action of the first spring 20; the second sealing ring 16 is clamped in the third clamping groove 172; the pressure cover 22 is provided with a fourth mounting hole 224, the fourth mounting hole 224 is located below the first mounting hole 214 of one of the sliding blocks 211, and the periphery of the fourth mounting hole 224 extends upwards to form a retaining ring; when the valve is installed, the top end of the upper valve body 15 is inserted into the second installation hole 052, the top end of the upper valve body 15 slides along the second installation hole 052 to rise and extend out of the pressure cover 22, or the top end of the upper valve body 15 slides along the second installation hole 052 to fall and retract into the pressure cover 22; the lower end of the upper valve body 15 passes through the first mounting hole 214, and the upper end of the lower valve body 17 passes through the fourth mounting hole 224 and the first mounting hole 214 in sequence and then is screwed with the upper valve body 15; the diameter of the annular brim 152 is larger than that of the first mounting hole 214, the diameter of the bottom of the lower valve body 17 is larger than that of the fourth mounting hole 224, and the second sealing ring 16 is clamped between the bottom of the lower valve body 17 and the pressure cover 22; when the safety valve is at rest, the fourth exhaust hole 173 is positioned below the pressure cover 22 and communicated with the cooker, the safety valve is lifted to the upper limit position, and the baffle ring of the fourth mounting hole 224 is pressed against the fourth exhaust hole 173. The second vent hole 171 is sealed by the spherical segment structure of the valve plug 18 to create a pressure environment, and the valve plug 18 opens the second vent hole 171 to exhaust and release pressure in the pot; the diameter of the annular brim 152 is larger than the diameter of the first mounting hole 214, so that the upper valve body 15 can be prevented from flying out of the pot, the first sealing ring 19 and the second sealing ring 16 can prevent the second exhaust hole 171 from air leakage, and the pressure maintaining function is maintained. When the safety valve is in a standing state, the air pressure in the cooker can enter the cavity from the fourth exhaust hole 173 and is exhausted from the first exhaust hole 151 of the upper valve body 15, so that the pressure relief is realized; when the pressure in the cooker is too high, the valve plug 18 is pushed open, the safety valve is lifted, and the baffle ring pushes against the fourth exhaust hole 173, so that the air pressure can be prevented from flowing out transversely, and the air flow can be discharged to the first exhaust hole 151.

A fifth mounting hole 225 is formed in the pressure cover 22, and a regulating valve assembly for regulating the air pressure in the cooker and exhausting air is installed in the fifth mounting hole 225; the regulating valve assembly comprises a regulating valve knob 06, a rotating shaft 07, a second spring 08, a valve core 09, a leakage-proof rubber ring 10, a regulating valve shell 11, a regulating lower valve 12, a regulating valve sealing ring 13 and a slag-isolating nut 14; the lower end of the lower adjusting valve 12 is provided with a threaded column 121, the threaded column 121 is hollow to form an air outlet hole 122, and the air outlet hole 122 is communicated with the upper side and the lower side of the lower adjusting valve 12; the threaded column 121 of the lower regulating valve 12 sequentially passes through the fifth mounting hole 225 and the regulating valve sealing ring 13 and then is locked on the pressure cover 22 by the slag-isolating nut 14, the slag-isolating nut 14 is provided with an air hole 141, the upper side of the air hole 141 is communicated with the air outlet 122, and the lower side of the air hole is communicated with the pot; the adjusting valve turn knob 06 is a cylindrical structure with an opening at the lower side and a cavity, the lower side in the cylinder is provided with a special-shaped column 061, the inner side wall of the cylinder is provided with a convex clamping position 062, the exterior of the cylindrical structure is provided with a shifting handle 063, the top side of the adjusting valve turn knob 06 is provided with a third anti-skidding line 064, and the third anti-skidding line 064 is formed by a plurality of grooves which are uniformly arranged in parallel in a vertical and horizontal direction; a through hole 071 is arranged in the rotating shaft 07, the through hole 071 penetrates through the rotating shaft 07 from top to bottom, the lower part of the rotating shaft 07 extends towards the through hole 071 to form a first inverted buckle 072, and a first spiral line 073 spirally arranged from top to bottom is arranged on the periphery of the rotating shaft 07; a special-shaped hole 074 is formed in the upper portion of the through hole 071, and the shape of the special-shaped hole 074 is matched with the shape of the special-shaped column 061; the valve core 09 comprises a valve core body 091 positioned at the upper side, a second guide post 092 fixed on the valve core body 091, a second reverse buckle 093 arranged at the upper part of the second guide post 092, and a valve core bottom end 094 positioned at the lower side; the second guiding post 092 of the valve core 09 is inserted into the through hole 071 and slides along the through hole, and when the valve core slides down to the lower limit, the first reverse buckle 072 buckles the second reverse buckle 093; the upper part of the regulating valve shell 11 is a hollow guide cylinder 111, the lower end of the guide cylinder 111 extends inwards to form a third inverted buckle 112, and the guide cylinder 111 is communicated with the lower space of the regulating valve shell 11 through a hole formed by the third inverted buckle 112; a third air vent 113 is arranged on the side wall of the lower space of the regulating valve shell 11, an air flow channel is formed between the regulating valve shell 11 and the regulating lower valve 12, and the third air vent 113 communicates the air flow channel with the outside of the pot; a second spiral line 114 which is spirally arranged from top to bottom is formed in the inner wall of the guide cylinder 111, and the second spiral line 114 is matched with the first spiral line 073; a pair of first positioning clamping grooves are respectively formed in the peripheries of a group of opposite sides of the guide cylinder 111 on the lower side of the inner wall of the guide cylinder 111, and each first positioning clamping groove comprises a first vertical guide groove 115 and a first transverse guide groove 116 connected with the first vertical guide groove 115; a pair of positioning clamping positions 117 are respectively arranged on a group of opposite side walls of the inner wall of the lower space of the regulating valve shell 11; a pair of second positioning clamping grooves are respectively formed in one group of opposite sides of the lower adjusting valve 12, each second positioning clamping groove comprises a second vertical guide groove 123 and a second transverse guide groove 124 connected with the second vertical guide groove, a clamping hook capable of preventing the positioning clamping position 117 from easily withdrawing is arranged at the intersection of the upper side wall of the second transverse guide groove 124 and the second vertical guide groove 123, and the positioning clamping position 117 can be unscrewed in a downward pressing state and can be separated from the constraint of the clamping hook; after the positioning clamp 117 of the regulating valve housing 11 is aligned with the second vertical guide groove 123 and pressed downwards to the second transverse guide groove 124, the regulating valve housing 11 is rotated to clamp the positioning clamp 117 into the inner side of the second transverse guide groove 124, so that the regulating valve housing 11 and the regulating lower valve 12 can be clamped tightly; an annular protrusion 095 is formed between the valve core body 091 and the valve core bottom end 094, the second spring 08 is sleeved on the periphery of the valve core body 091, the upper end of the second spring pushes against the bottom of the first spiral wire 073 along with the movement of the valve core 09, the lower end of the second spring pushes against the annular protrusion 095 of the valve core 09, and the valve core bottom end 094 penetrates through a hole formed by the third reverse buckle 112 from top to bottom and then closes or opens the air outlet hole 122 along with the up-and-down movement of the valve core 09; an annular groove 096 is formed in the periphery of the valve body on the upper side of the bottom end 094 of the valve core, the leakage-proof rubber ring 10 is sleeved in the annular groove 096, and the upper side face of the leakage-proof rubber ring 10 pushes against the lower side face of the third reverse buckle 112 along with the upward movement of the valve core 09 to the limit position; after the protruding position 062 of the regulating valve turn knob 06 is aligned with the first vertical guide groove 115 and pressed down to the first transverse guide groove 116, the regulating valve turn knob 06 is rotated so that the protruding position 062 is clamped into the inner side of the first transverse guide groove 116, and the regulating valve turn knob 06 can be tightly clamped with the guide cylinder 111 of the regulating valve housing 11; the special-shaped column 061 is embedded into the special-shaped hole 074, the rotating shaft 07 is sleeved on the periphery of the second guide column 092, the first spiral line 073 is matched with the second spiral line 114, the adjusting valve knob 06 rotates, and the special-shaped column 061 forces the first spiral line 073 of the rotating shaft 07 to be meshed with the second spiral line 114 of the guide cylinder 111 to rotate so as to realize the lifting of the valve core 09. The regulating valve shell 11 is detachably arranged on the regulating lower valve 12, so that the disassembling and assembling functions can be realized, and flushing and cleaning can be performed; according to the cooking of different food materials, the size of pressure release is controlled through the rotation degree of adjusting the valve knob 06 to the valve core 09 component, or the pressure maintaining function is realized by the closed pressure cooker, and the third exhaust hole 113, the air flow channel and the air outlet 122 form an exhaust channel to realize the pressure release function. The shifting handle 063 of the regulating valve knob 06 can facilitate the shifting of the user, thereby regulating the regulating valve component and performing auxiliary pressure relief or pressure maintaining on the pressure in the cooker; and friction with hands can be increased due to the arrangement of the third anti-skidding threads 064. The first inverted buckle 072 and the second inverted buckle 093 are matched to prevent the second guiding column 092 from falling off. The through hole 071 provides a guide for the second guiding pillar 092, and the second spring 08 provides an elastic force for the valve core 09, and moves toward the air outlet 122 against the valve core 09, so that the valve core 09 forms a pressurized air valve function. First helix 073 and second helix 114's cooperation for rotation axis 07 realizes elevating function along the 111 inner wall spirals of guide cylinder, and two helices close soon, can make the governing valve subassembly have electrodeless fine setting function, and in certain speed range, can be continuous, arbitrary make very little adjustment, make the product have more humanized culinary art and control. The cooperation of the detent position 117 and the second detent position allows the adjusting valve housing 11 to be detachably snapped onto the lower adjusting valve 12, and the threaded post 121 of the lower adjusting valve 12 is used to fix the lower adjusting valve 12 on the pressure cover 22. The special-shaped column 061 is matched with the special-shaped hole 074, the rotating shaft 07 can be driven by the adjusting valve turn knob 06 to rotate along the guide cylinder 111 to realize lifting, the projection clamping position 062 is matched with the first positioning clamping groove to realize the detachable installation of the adjusting valve turn knob 06, and the projection clamping position 062 slides along the first transverse guide groove 116 to realize the rotating function of the adjusting valve turn knob 06. The third reverse buckle 112 limits the moving range of the valve core 09 to prevent the valve core 09 from falling off, and the arrangement of the leakproof seal ring can prevent water vapor from leaking to the valve core 09 and the guide cylinder 111 to ensure the sanitation of the interior of the regulating valve shell 11. In this embodiment, the upper sidewall of the first transverse guiding groove 116 is provided with a corrugated concave-convex structure, which is beneficial to positioning and clamping the protruding clamping position 062.

In this embodiment, the upper side of the lower regulating valve 12 around the air outlet 122 protrudes upward to form an air outlet 122 arc surface, and the bottom end 094 of the valve core 09 forms an arc convex surface matched and attached to the air outlet 122 arc surface. The circular arc convex surface is beneficial to sealing the air outlet 122 by the bottom end 094 of the valve core, and has good sealing effect. The inclined plane is arranged at the lower end of the first inverted buckle 072, the inclined plane is favorable for guiding the guide post when being inserted, the hole formed by the first inverted buckle 072 can be enlarged, and the guide post can be inserted into the through hole 071. The side is equipped with first order sign, the second grade sign, third grade sign on the governing valve shell 11, sign protrusion screens 062 is lieing in first vertical guide way 115 and first horizontal guide way 116 intersection respectively, when rotatory half to first horizontal guide way 116 route, rotatory three kinds of states to the end on first horizontal guide way 116 route, thereby the guide user is rotatory to corresponding position with governing valve turn-knob 06 fast, thereby realize unclamping or compress tightly venthole 122. The bottom of the periphery of the regulating valve shell 11 is provided with a steering indicating sign for indicating the rotating direction, so that a user can rotate the regulating valve conveniently. The regulating valve shell 11 is of a reducing structure from bottom to top, the section of the regulating valve shell is conical along the longitudinal section, three third exhaust holes 113 are formed in the regulating valve shell 11, and the three third exhaust holes 113 are radially distributed on the conical side wall of the regulating valve shell 11. The regulating valve shell 11 with the reducing structure can obliquely spray water vapor from the third exhaust hole 113, so that direct injection is avoided, and scalding is prevented. The hemisphere part at the bottom end of the slag separation nut 14 is provided with criss-cross grooves which penetrate through the hemisphere part, and the cross grooves are communicated with the air holes 141. The cross groove can prevent large-particle substances from entering the air outlet 122, so that the slag separation function is realized.

In this embodiment, the connecting structure between the pot body 30 and the side ear 26 comprises an ear seat 29, a retainer 28 and a screw 27; the lug seat 29 is welded on the side surface of the pot body 30, the side lug 26 is tightly locked on the lug seat 29 through the screw 27, the guard ring 28 is sleeved on the periphery of the lug seat 29, and the guard ring 28 is clamped between the side lug 26 and the pot body 30.

Assembly of components on the pressure cap 22 of the present embodiment:

1) the pot mouth sealing ring 23 is arranged in the pressure cover 22;

2) three pressure rings 21 are respectively placed on the surface of the pressure cover 22 according to requirements, and the elongated hole 213 of the pressure ring 21 is sleeved on the positioning column 223 of the pressure cover 22;

3) the safety valve is sleeved in the fourth mounting hole 224 and the first mounting hole 214 as required;

4) placing the mounting panel 05 on the surface of the pressure cover 22, and concentric with the safety valve and the fourth mounting hole 224; the first guide post 212 in the pressure ring 21 passes through the guide long hole 051 in the mounting panel 05; the slider 211 is clamped on the sliding groove 054 of the mounting panel 05;

5) placing the knob 04 at the mounting groove 055 of the mounting panel 05, and making the three special-shaped holes 074 respectively penetrate into the first guide posts 212 of the sliding block 211;

6) the tension spring 03 and the hand feeling column 02 are sequentially placed in a positioning hole 041 of the knob 04;

7) the fixing post 011 is fixed by the center nut 25 after passing through the second center hole 042, the first center hole 053, and the third center hole 222.

Assembling the regulating valve assembly:

1) a second spring 08 is sleeved on the periphery of a second guide post 092 of the valve core 09, so that a first inverted buckle 072 of the rotating shaft 07 passes through an inverted buckle shaft of a second inverted buckle 093, and the valve core 09 and the rotating shaft 07 form a whole;

2) the valve core 09 is screwed into the guide cylinder 111 of the regulating valve housing 11 from top to bottom in a rotating manner, and the leakage-proof rubber ring 10 is fitted into the annular groove 096 of the valve core 09.

3) The convex clamping position 062 of the regulating valve turn knob 06 is aligned with the first vertical guide groove 115 of the regulating valve shell 11, so that the special-shaped column 061 of the regulating valve turn knob 06 is concentric with the special-shaped hole 074 of the rotating shaft 07; the adjusting valve knob 06 is slid down to the intersection of the first vertical guide groove 115 and the first transverse guide groove 116, pressed down with slight force, and then rotated into the first transverse guide groove 116.

4) The positioning clamp position 117 of the regulating valve shell 11 is aligned with the second vertical guide groove 123 of the regulating lower valve 12, and slides downwards to the junction of the second vertical guide groove 123 and the second transverse guide groove 124, and then rotates to the second transverse guide groove 124 in the designated direction after slightly pressing downwards with force, and can be screwed at the end of the second transverse guide groove 124.

5) The threaded post 121 of the lower regulating valve 12 is inserted through the face of the pressure cap 22 and screwed into the cap by means of the slag-isolating nut 14 to be fixed to the pressure cap 22.

The working principle of the embodiment is as follows:

1) the knob 04 is rotated left and right, and the pressure ring 21 is opened or closed.

2) The pressure cover 22 is covered on the pressure cooker body 30, the knob 04 is rotated, the first guide column 212 and the slide block 211 on the pressure ring 21 are driven by the guide long hole 051 of the installation panel 05 to lead the pressure ring 21 to be folded, and the pressure ring 21 is clamped with the starting position 301 of the cooker body 30.

3) The pressure cover 22 is sealed with the cooker body 30 under the action of the cooker opening sealing ring 23, and when the pressure in the cooker exceeds the set pressure of the safety valve, the pressure in the cooker is automatically discharged from the safety valve.

4) The pressure ring 21 is clamped with the start level 301 of the pot body 30 by rotating the knob 04 when the cooker is placed on a stove for heating, the cover is sealed with the pot under the action of the pot opening sealing ring 23, and when the pressure in the pot exceeds the set pressure of the safety valve, the air pressure in the pot is automatically discharged from the safety valve, and sharp noise is generated.

5) The pressure ring 21 is clamped with the start position 301 of the pot body 30 when the knob 04 is rotated, the cover is sealed with the pot under the action of the pot opening sealing ring 23, when the pressure in the pot exceeds the set pressure of the safety window, the outer diameter R corner embedding part 231 of the pot opening sealing ring 23 (the upper side and the lower side of the end part of the pot opening sealing ring 23 and the embedding part 231 form an R corner structure) can automatically reverse under the action of the safety device 31 (the convex surface 311 or the air leakage seam 312 or the pressure leakage hole 313) set by the pressure cover 22, the sealing part 232 in contact with the start position 301 of the pot body 30 is driven to automatically turn out of the pot, and the air pressure in the pot is automatically discharged from the turned-out position. After the pot opening sealing ring 23 is turned out for pressure relief, the original state can not be automatically recovered, so that the pressure can not be increased even if a heat source is used for heating, and accidents are avoided.

6) When the pressure in the cooker is higher than 4kPa, the safety valve automatically rises, and the upper valve body 15 extends out of the mounting panel 05 to warn that the pressure in the cooker exists. When the pressure in the cooker reaches above 140kPa, the valve plug 18 automatically lifts to exhaust and sounds to warn that the pressure in the cooker is overhigh, and informs a user to close the heat source or open the regulating valve component to exhaust and release pressure. The pressure setting value of the pressure in the cooker is set to be 220-280 kPa, when the pressure in the cooker rises to the numerical range, the cooker opening sealing ring 23 can automatically translate out of the safety device 31, and the gas is discharged from the gas leakage seam 312 or the pressure relief hole 313, so that the pressure relief function is realized, when the safety device 31 is the convex surface 311, the cooker opening sealing ring 23 translates towards the safety device, so that the sealing part 232 of the cooker opening sealing ring 23 at the position is separated from the starting position 301, and the gas can be discharged from the starting position 301, so that the pressure relief is realized. The safety device 31 allows the pressure in the cooker to drop below 20kPa within 60 seconds without the pressure rising again without manual intervention.

The innovation points of the embodiment include the following:

1) the pot body is an initial pot: the function is to enhance the pressure bearing capacity of the pot edge and avoid the water dripping phenomenon caused by slight defects of the pot opening sealing ring 23.

2) The safety window (i.e. the safety device 31, which is the protruding surface 311 or the air release slit 312 or the air release hole 313) of the pressure cover 22 is a concave-convex design, which is used to keep the cover intact and enhance the rigidity of the cover.

3) The cooperation between the pressure cover 22 and the pot body 30, and the cooperation between the step 301 of the pot body 30 and the outer diameter of the pressure cover 22 are embedded, so that the user can quickly and conveniently cover the pressure cover 22.

4) The cooperation between the pressure cover 22 and the rising position 301 of the pot body 30 is embedded, and when the safety air valve is blocked and the pressure is released from the window (i.e. the air release seam 312 or the pressure release hole 313), the water vapor is sprayed out in the vertical (80 to 100 degrees): the embodiment reduces accidental injury to people; the phenomenon that the cooker body rolls over when air is injected to damage the cooker is avoided. Secondly, because the water vapor is basically sprayed in the vertical direction, the smoke extractor can conveniently and quickly suck and discharge the smoke, and the pollution of food particles to a kitchen is reduced.

The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a new-type pressure cooker that opens and shuts structure, includes pot body, side ear and pot cover subassembly, the pot cover subassembly lid is put on the pot body, the side ear is installed pot body lateral wall, its characterized in that: the pot body and the pot opening extend outwards to form a level structure, the level structure comprises a starting level and a retaining edge, the starting level is horizontally arranged, the lower end of the retaining edge is connected to the outer end of the starting level, and the inner end of the starting level is connected with the pot body; the cooker cover assembly comprises a pressure cover, a safety valve for exhausting air, an opening and closing device hooped on the pressure cover and used for locking or unlocking the pressure cover and the cooker body, and a rotating button assembly used for controlling the opening and closing device to lock or unlock the pressure cover and the cooker body through rotation; the outer edge of the pressure cover is placed on the starting position, and the periphery of the pressure cover is located within the flange.

2. The pressure cooker with novel opening and closing structure as claimed in claim 1, wherein: the outer fringe of pressure lid inwards buckles and forms the incurve structure, install a pot mouth sealing washer in the incurve structure, be located incurve structure department pot mouth sealing washer external diameter is embedding portion, pot mouth sealing washer downside is the sealing, embedding portion upside court the inboard slope of pressure lid extends, the sealing is from the junction slope down and extends, the pressure lid is fashionable, the sealing of pot mouth sealing washer is being pushed up the level position.

3. The pressure cooker with novel opening and closing structure as claimed in claim 1, wherein: the opening and closing device comprises at least two opening and closing mechanisms, and each opening and closing mechanism comprises a pressure ring, a sliding block and a first guide column; the sliding block is provided with a first mounting hole and a long hole, the first mounting hole is communicated with the long hole, the pressure ring is arranged at the outer end of the sliding block, and the first guide columns are respectively arranged at the inner end of the sliding block; the pressure cover is provided with an installation panel, the middle part of the installation panel is downwards sunken to form an installation groove, the installation groove is provided with a guide long hole and a first center hole, the installation panel is provided with a second installation hole for installing the safety valve, and the lower side of the installation panel is provided with a sliding groove; the knob assembly comprises a knob, a knob fixing piece and a central nut, the knob is provided with a second central hole, a positioning hole and a third mounting hole, and a fixing column is arranged on the lower side of the knob fixing piece; the number of the guide long holes is matched with that of the pressure rings, and the number of the third mounting holes is matched with that of the guide long holes; a third central hole is formed in the center of the pressure cover, positioning columns are arranged on the upper side of the pressure cover, and the number of the positioning columns is matched with that of the pressure rings and is opposite to that of the pressure rings; the pressure ring is placed on the pressure cover, and the elongated hole is sleeved on the positioning column; the mounting panel is mounted on the pressure cover, the pressure ring is clamped between the pressure cover and the mounting panel, and the sliding block is mounted in the sliding groove and can slide along the sliding groove; the knob is installed in the installation groove, and the first guide column penetrates through the guide long hole and then is inserted into the third installation hole; the fixing column sequentially penetrates through the second center hole, the first center hole and the third center hole from top to bottom and then is screwed by the center nut; and when the knob is rotated, the third mounting hole forces the first guide column to slide along the guide long hole, so that the pressure ring locks or unlocks the pressure cover and the pot body.

4. The new pressure cooker with opening and closing structure as claimed in claim 3, wherein: the opening and closing device is provided with three opening and closing mechanisms which are positioned on the same plane and form an included angle of 120 degrees between every two opening and closing mechanisms; the first side of the inner end of the sliding block extends outwards in an inclined mode, the sliding block is of a reducing structure in the direction from the middle part of the sliding block to the inner end, and the second side of the sliding block extends towards the first side of the inner end of the sliding block in an arc-shaped inclined mode from the middle part of the sliding block to the inner end; the first guide columns at the inner ends of the three sliding blocks are positioned below the mounting groove, the first side at the inner end of the middle sliding block is close to the second side of the sliding block at the left side of the middle sliding block and can move along the arc-shaped inclination direction of the side, and the first side at the inner end of the right sliding block is close to the second side of the middle sliding block and can move along the arc-shaped inclination direction of the side.

5. The new pressure cooker with opening and closing structure as claimed in claim 3, wherein: the knob assembly further comprises a hand feeling column and a tensioning spring; the lower sides of the fixed column and the rotating button fixing part are provided with sleeves, the fixed column is located in the sleeves, a circle of concave-convex groove is formed in the lower sides of the sleeves, the tensioning springs and the hand-feeling columns are sequentially placed in the positioning holes, the lower ends of the tensioning springs prop against the bottoms of the positioning holes, the upper ends of the tensioning springs prop against the lower ends of the hand-feeling columns, and the upper ends of the hand-feeling columns prop against the concave-convex groove.

6. The new pressure cooker with opening and closing structure as claimed in claim 3, wherein: the cover edge of the pressure cover is provided with a safety device which is used for enabling the pot opening sealing ring to deform and shift when the pressure in the pot exceeds a pressure set value, and the safety device is positioned below the pressure ring.

7. The pressure cooker with novel opening and closing structure as claimed in claim 6, wherein: the safety device is a convex surface formed by jacking the cover surface of the pressure cover from bottom to top, and the convex surface is aligned to the upper side of the pot opening sealing ring embedding part; or the safety device is an air leakage seam arranged on the cover surface of the pressure cover, and the air leakage seam is aligned to the upper side of the pot opening sealing ring embedding part; or the safety device is a pressure relief hole formed in the cover surface of the pressure cover, and the pressure relief hole is aligned with the upper side of the pot opening sealing ring embedding part.

8. The new pressure cooker with opening and closing structure as claimed in claim 3, wherein: the upper side of each side lug is provided with a first anti-skid grain, and the first anti-skid grain is formed by uniformly arranging a plurality of grooves in a longitudinal and transverse manner; and the upper side surface of the rotating button fixing piece is provided with second anti-skid grains, and the second anti-skid grains are formed by uniformly arranging a plurality of grooves in a longitudinal and transverse manner.

9. The new pressure cooker with opening and closing structure as claimed in claim 3, wherein: the safety valve comprises an upper valve body, a lower valve body, a first spring, a valve plug, a first sealing ring and a second sealing ring; the lower end of the upper valve body is connected with the upper end of the lower valve body through threads, a cavity is arranged between the lower valve body and the upper valve body, a first exhaust hole communicated with the cavity is formed in the top of the upper valve body, and a circle of raised annular brim is arranged at the lower part of the upper valve body; one end of the valve plug is respectively provided with a first clamping groove and a second clamping groove which surround the valve plug for one circle, and the other end of the valve plug is of a segment structure; the bottom of the lower valve body is provided with a second exhaust hole communicated with the cavity, the bottom of the lower valve body is provided with a third clamping groove surrounding the lower valve body for one circle, the periphery of the lower valve body is provided with a plurality of fourth exhaust holes communicated with the cavity, and the fourth exhaust holes are positioned above the third clamping groove; the valve plug is positioned in the cavity, the upper end of the first spring is propped against the inner wall of the upper valve body, and the lower end of the first spring is clamped in the first clamping groove of the valve plug to enable the ball-segment structure of the valve plug to prop against or open the second exhaust hole; the first sealing ring is clamped in the second clamping groove and is propped against the inner wall of the lower valve body at the periphery of the second exhaust hole under the action of the first spring; the second sealing ring is clamped in the third clamping groove; the pressure cover is provided with a fourth mounting hole, the fourth mounting hole is positioned below the first mounting hole of one of the sliding blocks, and the periphery of the fourth mounting hole extends upwards to form a retaining ring; when the valve is installed, the top end of the upper valve body is inserted into the second installation hole, and the top end of the upper valve body slides along the second installation hole to rise and extend out of the outer side of the pressure cover, or slides along the second installation hole to descend and retract into the pressure cover; the lower end of the upper valve body penetrates through the first mounting hole, and the upper end of the lower valve body sequentially penetrates through the fourth mounting hole and the first mounting hole and then is screwed with the upper valve body; the diameter of the annular brim is larger than that of the first mounting hole, the diameter of the bottom of the lower valve body is larger than that of the fourth mounting hole, and the second sealing ring is clamped between the bottom of the lower valve body and the pressure cover; when the safety valve is in standing, the fourth exhaust hole is positioned below the pressure cover and communicated with the pot, the safety valve is lifted to the upper limit position, and the blocking ring of the fourth mounting hole abuts against the fourth exhaust hole.

10. The pressure cooker with novel opening and closing structure as claimed in claim 1, wherein: a fifth mounting hole is formed in the pressure cover, and a regulating valve assembly for regulating the air pressure in the cooker and exhausting air is mounted in the fifth mounting hole; the regulating valve assembly comprises a regulating valve knob, a rotating shaft, a second spring, a valve core, a leakage-proof rubber ring, a regulating valve shell, a regulating lower valve, a regulating valve sealing ring and a slag separation nut; the lower end of the lower adjusting valve is provided with a threaded column, the threaded column is hollow to form an air outlet, and the air outlet is communicated with the upper side and the lower side of the lower adjusting valve; the threaded column of the lower adjusting valve sequentially penetrates through the fifth mounting hole and the adjusting valve sealing ring and then is locked on the pressure cover by the slag separation nut, the slag separation nut is provided with an air hole, the upper side of the air hole is communicated with the air outlet, and the lower side of the air hole is communicated with the pot; the regulating valve rotating knob is of a cylindrical structure with an opening at the lower side and a cavity, a special-shaped column is arranged at the lower side in the cylinder, a convex clamping position is arranged on the inner side wall of the cylinder, a shifting handle is arranged outside the cylindrical structure, a third anti-skidding line is arranged on the top side of the regulating valve rotating knob, and the third anti-skidding line is formed by a plurality of grooves which are uniformly arranged in parallel in a longitudinal and transverse direction; a through hole is formed in the rotating shaft and penetrates through the rotating shaft from top to bottom, the lower portion of the rotating shaft extends towards the through hole to form a first reverse buckle, and a first spiral line spirally arranged from top to bottom is arranged on the periphery of the rotating shaft; a special-shaped hole is formed in the upper part of the through hole, and the shape of the special-shaped hole is matched with that of the special-shaped column; the valve core comprises a valve core body positioned on the upper side, a second guide post fixed on the valve core body, a second reverse buckle arranged on the upper part of the second guide post, and a valve core bottom end positioned on the lower side; the second guide post of the valve core is inserted into the through hole and slides along the through hole, and when the valve core slides down to the lower limit, the first reverse buckle buckles the second reverse buckle; the upper part of the regulating valve shell is a hollow guide cylinder, the lower end of the guide cylinder extends inwards to form a third reverse buckle, and the guide cylinder is communicated with the space at the lower part of the regulating valve shell through a hole formed by the third reverse buckle; a third air vent is arranged on the side wall of the lower space of the regulating valve shell, an air flow channel is formed between the regulating valve shell and the lower regulating valve, and the third air vent is used for communicating the air flow channel with the outside of the pot; a second spiral line spirally arranged from top to bottom is formed in the inner wall of the guide cylinder, and the second spiral line is matched with the first spiral line; a pair of first positioning clamping grooves are respectively formed in the peripheries of a group of opposite sides of the guide cylinder on the lower side of the inner wall of the guide cylinder, and each first positioning clamping groove comprises a first vertical guide groove and a first transverse guide groove connected with the first vertical guide groove; a pair of positioning screens are respectively arranged on a group of opposite side walls of the inner wall of the lower space of the regulating valve shell; a pair of second positioning clamping grooves are formed in one group of opposite sides of the lower adjusting valve respectively, and each second positioning clamping groove comprises a second vertical guide groove and a second transverse guide groove connected with the second vertical guide groove; after the positioning clamping position of the regulating valve shell is aligned to the second vertical guide groove and pressed downwards to the second transverse guide groove, the regulating valve shell is rotated, and the positioning clamping position is clamped into the inner side of the second transverse guide groove, so that the regulating valve shell and the regulating lower valve can be clamped tightly; an annular bulge is formed between the valve core body and the bottom end of the valve core, the second spring is sleeved on the periphery of the valve core body, the upper end of the second spring abuts against the bottom of the first spiral line along with the movement of the valve core, the lower end of the second spring abuts against the annular bulge of the valve core, and the bottom end of the valve core penetrates through a hole formed by the third reverse buckle from top to bottom and then closes or opens the air outlet along with the up-and-down movement of the valve core; a ring groove is formed in the periphery of the valve body on the upper side of the bottom end of the valve core, the leakage-proof rubber ring is sleeved in the ring groove, and the upper side face of the leakage-proof rubber ring props against the lower side face of the third reverse buckle along with the upward movement of the valve core to the limit position; after the convex clamping position of the regulating valve turn button is aligned to the first vertical guide groove and is pressed downwards to the first transverse guide groove, the regulating valve turn button is rotated to clamp the convex clamping position into the inner side of the first transverse guide groove, so that the regulating valve turn button and the guide cylinder of the regulating valve shell can be clamped tightly; the dysmorphism post embedding it is downthehole that the dysmorphism, the rotation axis cover is in the second guide post periphery, first helix with the cooperation of second helix, the governing valve knob is rotatory, the dysmorphism post forces the first helix meshing of rotation axis the second helix of guide cylinder rotates and realizes the lift of valve pistil.