Air exhausting and locking pressure cooker cover

Abstract

The invention discloses an exhausting and air locking pressure cooker cover which covers a cooker body and comprises a pressure cover, a panel, a buckling assembly, a safety valve assembly used for assisting exhausting, a working valve assembly used for exhausting and pressure adjusting, a lever structure, a driving structure, a rotating assembly, a center stud and a center nut. The center stud sequentially penetrates through the rotating assembly, the driving structure and the pressure cover and then is screwed with the center nut. The lower end of the rotating assembly is connected with the driving structure. The inner end of the buckling assembly is connected with the driving structure, and the buckling assembly rotates along with the driving structure, slides along the pressure cover and fastens or loosens a group of opposite side edges of the cooker cover and the cooker body; one end of the lever structure is connected with the driving structure, the other end of the lever structure is connected with the working valve assembly, and the lever structure is driven by the driving structure to open or close the working valve assembly. The safety valve assembly is installed on the pressure cover. The pot cover is convenient to exhaust and lock air, can be sealed and pressurized, timely exhausts and relieves pressure in a pot, shortens cooking time, and achieves the purposes of energy conservation and environmental protection.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen cooking utensils, in particular to an exhaust and air-locking pressure cooker cover. Background Art

[0002] Some of the cookware on the market currently have no vent holes, while some are equipped with normally open vent holes. During the cooking process, water vapor leaks out through the vent holes or through the joint between the lid and the pot body, and a large amount of water vapor is discharged; this will cause excessive water loss in the pot and take away some nutrients, and also cause energy waste. For cookware with normally open vent holes, more energy is consumed during cooking. For cookware without vent holes, the air is exhausted from the joint between the lid and the pot body. Sometimes the sudden large amount of water vapor discharged may accidentally injure the operator. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and provide a venting and air-locking pressure cooker lid.

[0004] The present invention is realized by the following technical scheme: a kind of exhaust and air-locking pressure cooker cover, the cover is placed on the cooker body, and comprises a pressure cover, a panel, a buckling assembly, a safety valve assembly for auxiliary exhaust, a working valve assembly for exhaust and pressure regulation, a lever structure, a driving structure, a rotating assembly, a central stud and a central nut; the lower part of the rotating assembly is penetrated on the panel, the central stud passes through the rotating assembly, the driving structure and the pressure cover in sequence and is screwed with the central nut, the lower end of the rotating assembly is connected with the driving structure and drives the driving structure to rotate; the inner end of the buckling assembly is connected with the driving structure, the buckling assembly slides along the pressure cover as the driving structure rotates and buckles or loosens a group of opposite sides of the cooker cover and the cooker body; one end of the lever structure is connected with the driving structure, and the other end thereof is connected with the working valve assembly, and the lever structure opens or closes the working valve assembly as the driving structure is driven; the safety valve assembly is installed on the pressure cover and can slide up and down along it, the lower end of the safety valve assembly is communicated with the inside of the cooker body, and the upper end thereof extends out of the panel or retracts into the panel as the air pressure changes.

[0005] When the rotating assembly of the pot cover is rotated, the driving structure can push the lever structure to open or close the working valve assembly, thereby realizing the function of exhausting air and relieving pressure or adjusting the pressure in the pot; the driving structure pushes the snap-fit ​​assembly to realize the opening and closing operation of the pot cover with one hand control.

[0006] The pressure cover is provided with a first guide groove and a first center hole, the first center hole is located at the central position of the pressure cover and is located in the first guide groove; the buckling assembly is symmetrically provided with a pair, and each pair of the buckling assemblies includes a connecting piece and a pressure ring arranged at the outer end of the connecting piece, the outer side of the connecting piece is provided with a first mounting hole, and the inner side of the connecting piece is provided with a guide column; the connecting piece is installed in the first guide groove and can slide along it, and the two pressure rings can flexibly buckle or release the pot cover and the pot body; the driving structure includes a fixed seat and an opening and closing knob; the fixed seat is provided with a second center hole, a second guide groove and a first positioning hole, the second guide groove is provided with two, which are respectively arranged on both sides of the second center hole, and the first positioning hole is arranged on the side wall of the fixed seat and penetrates the side wall; the opening and closing knob The knob is provided with a third center hole, a third guide groove and a first clamp; the third guide groove is provided with two and is respectively located on both sides of the third center hole; the side wall of the opening and closing knob is provided with an inclined limit groove; the upper part of the fixing seat is detachably mounted on the lower side of the panel, and the opening and closing knob is located in the fixing seat; the lower end of the rotating assembly is connected with the first clamp and drives the opening and closing knob to rotate; the guide column is inserted into the third guide groove after passing through the second guide groove; a ball head structure is provided at the inner end of the lever structure, and the ball head structure is stuck in the limit groove after passing through the first positioning hole. When the opening and closing knob rotates, the limit groove slides along the ball head structure; the central stud passes through the rotating assembly, the third center hole, the second center hole, and the first center hole in sequence and is tightened with the central nut. When the opening and closing knob rotates, the third guide groove drives the guide column to force the connecting member to move inward or outward, so that the pressure ring fastens or loosens the pot cover and the pot body. The ball head structure of the lever structure cooperates with the limit groove. When the opening and closing knob is rotated, the limit groove can slide along the ball head structure, forcing the ball head structure to move, thereby causing the lever structure to work and open or close the working valve assembly.

[0007] The second guide groove is a linear guide groove, and the length direction of the second guide groove is consistent with the length direction of the first guide groove; the third guide groove gradually extends from the outside of the opening and closing knob to the inside to form an arc-shaped guide groove. The third guide groove is an arc-shaped guide groove structure, and the guide column can be forced to slide in the guide groove and twist through the structure of the arc-shaped guide groove, thereby pulling the connecting piece to extend or contract, thereby realizing the opening and closing function of the pressure ring.

[0008] The pressure cover is provided with a recess and a first exhaust hole, and the panel is provided with a second mounting hole; the working valve assembly comprises a fixing sleeve, a positioning shaft, a lifting member, a valve pipe, an air valve nut, a working valve spring, a valve core and an air valve housing; the front part of the fixing sleeve is provided with an upwardly opening mounting groove, the lower part of the mounting groove is provided with a third mounting hole penetrating the bottom of the fixing sleeve, the rear part of the mounting groove is provided with a fourth mounting hole penetrating the bottom of the fixing sleeve, and the rear part of the fixing sleeve is provided with a second positioning hole; the valve pipe is a cylindrical structure penetrated by a hollow channel, and its upper outer circumference protrudes outward by a circle to form a first raised ring; one end of the lifting member is provided with a first positioning cylinder and a fifth mounting hole, and the other end is provided with a positioning column, and the positioning column is provided with a first slot; The fifth mounting hole is located above the first positioning cylinder and passes through the upper and lower side surfaces of the lifting member; the valve core is a cylindrical structure with a chamber and an opening facing downward, and the outer periphery of the lower part of the valve core protrudes outward in a circle to form a second raised ring; the lower end of the fixed sleeve is placed in the recessed position, and the lower part of the valve tube passes through the third mounting hole and the first exhaust hole of the fixed sleeve in turn and is threadedly connected with the air valve nut and tightened, and the lower side surface of the first raised ring presses against the lower structure of the mounting groove around the third mounting hole; the air valve nut is provided with a second exhaust hole, and the second exhaust hole connects the hollow channel of the valve tube with the space of the pot body; the valve core, working valve spring and lifting member are placed in the mounting groove of the fixed sleeve in turn, and the valve The lower end of the core can be removably inserted into the hollow channel of the valve tube; the lower end of the working valve spring presses against the upper side surface of the second raised ring, and the upper end presses against the wall of the lifting member around the fifth mounting hole; the first positioning cylinder of the lifting member is movably sleeved in the mounting groove of the fixed sleeve and can slide up and down along it, and the positioning column is inserted into the fourth mounting hole and can move up and down along it; the lever structure is provided with a sixth mounting hole in the middle part, and a fork structure is provided at the outer end; the lever structure is hinged to the fixed sleeve after the second positioning hole, the sixth mounting hole and the second positioning hole are successively penetrated by the positioning shaft, and the fork structure of the lever structure is clamped on the first clamping groove of the positioning column; the air valve housing is mounted on the In the second mounting hole, the air valve housing is provided with a third exhaust hole that penetrates the upper and lower sides thereof, and the air valve housing is located above the mounting groove; the fixing sleeve is provided with wing plates with screw holes on both sides, and the lower side of the panel is provided with a pair of second positioning cylinders, and the fixing sleeve is locked in the second positioning cylinders after passing the screws through the screw holes; the valve core extends out of the fifth mounting hole or retracts into the fifth mounting hole under the pressure of the working valve spring; the valve core rises and lifts the lifting member, and the second exhaust hole, the hollow passage of the valve pipe, the mounting groove and the third exhaust hole are connected to form an exhaust passage; the lever structure applies pressure to make the lifting member descend, and the valve core descends accordingly, and the hollow passage of the valve pipe is closed. The first raised ring presses against the lower structure of the mounting groove to prevent the valve pipe from falling off; the lower part of the valve pipe is threadedly connected to the air valve nut to achieve fixed installation of the fixing sleeve.The installation groove provides a guide for the first positioning tube. The second positioning tube and the screw hole are connected by a set screw sleeve to achieve relative positioning, which can prevent the working valve assembly from shaking.

[0009] The rotating assembly includes a pot lid handle and a handle decorative sheet. The upper part of the pot lid handle is an inverted truncated cone structure, and the lower part is a cylindrical structure with a step position. The pot lid handle has a receiving cavity that penetrates it from top to bottom; the cylindrical structure at the lower part of the pot lid handle is provided with a second card slot, and the first card member is embedded in the second card slot; the upper part of the central stud protrudes outwards to form a third raised ring, and when the central stud passes through the receiving cavity and is tightened with the central nut, the lower side of the third raised ring abuts against the step position; the inner side of the truncated cone structure of the pot lid handle is provided with a third card slot, and the lower side of the handle decorative sheet is provided with a second card member, and the second card member can be detachably inserted into the third card slot. The cooperation of the first card member and the second card slot can realize the linkage of the pot lid handle and the opening and closing knob. The cooperation of the second card member and the third card slot can realize the buckle fixation of the truncated cone structure of the pot lid handle and the handle decorative sheet.

[0010] The fixing seat is provided with a third clamping piece, and the panel is provided with a third positioning cylinder and a fourth positioning cylinder, and the third positioning cylinder is located in the fourth positioning cylinder; the lower part of the rotating assembly is inserted into the third positioning cylinder, and the fourth positioning cylinder is provided with a fourth clamping groove, and the third clamping piece can be detachably clamped into the fourth clamping groove; a circular groove is formed in the middle of the first guide groove, and the fixing seat is placed in the circular groove. The setting of the circular groove can realize the limiting effect on the fixing seat to prevent lateral displacement. The cooperation between the third clamping piece and the fourth clamping groove can realize the buckling fixation of the fixing seat and the panel.

[0011] There are three third clamping members evenly distributed on the fixing seat, and the number of the fourth clamping slots matches the number of the third clamping members.

[0012] The fork structure of the lever structure is a double fork with a U-shaped slot, two first slots are provided, the two first slots are respectively located on the opposite sides of the positioning column, and the double plugs of the lever structure are respectively clamped in the two first slots; the outermost edge of the valve housing is sleeved with a third sealing ring, and the third sealing ring is clamped between the panel and the valve housing. The provision of the third sealing ring can provide sealing performance between the edge of the valve housing and the panel.

[0013] The safety valve assembly comprises a safety valve upper part, a safety valve lower part, a safety valve spring, a safety valve core, a first sealing ring and a second sealing ring; the interior of the safety valve upper part is a cavity, a fourth exhaust hole is provided on the top of the safety valve upper part to connect the cavity with the outside, and a fourth protruding ring is formed on the outer periphery of the lower part; the safety valve lower part is a cylindrical structure opening upward, a fifth exhaust hole is provided on the bottom surface of the safety valve lower part, a circle of fifth protruding ring and a circle of first annular groove are provided on the outer periphery of the bottom of the safety valve lower part, and the first annular groove is located above the fifth protruding ring; a second annular groove and a third annular groove are provided at one end of the safety valve core, respectively, and a spherical segment structure is provided at the other end; the lower end of the safety valve upper part is screwed together with the upper end of the safety valve lower part by threaded connection, and the safety valve spring and the safety valve core are located in the cavity formed by the safety valve upper part and the safety valve lower part; one end of the safety valve spring presses against the inner wall of the safety valve upper part, and the other end is stuck in the second annular groove and promotes the The spherical segment structure of the safety valve core presses against or opens the fifth exhaust hole; the first sealing ring is clamped in the third annular groove and presses against the inner wall of the safety valve lower part around the fifth exhaust hole under the action of the safety valve spring; the second sealing ring is clamped in the first annular groove, and the lower side of the second sealing ring presses against the fifth raised ring; the pressure cover is provided with a seventh mounting hole, the seventh mounting hole is located on one end of the first guide groove, and the seventh mounting hole is opposite to the first mounting hole of the connecting member located on the same side; the panel is provided with an eighth mounting hole, and the eighth mounting hole is opposite to the seventh mounting hole; the safety valve assembly is sleeved in the seventh mounting hole, the fourth raised ring is located above the pressure cover, and the fifth raised ring is located below the pressure cover; the top of the safety valve upper part passes through the first mounting hole and is located below the eighth mounting hole. As the pressure in the pot body changes, the top of the safety valve upper part extends out of the eighth mounting hole or retracts into the eighth mounting hole. The ball-segment structure of the safety valve core seals the fifth exhaust hole to create a sealing and pressurizing function, and the ball-segment structure opens the fifth exhaust hole to exhaust and relieve pressure in the pot. The first sealing ring is set to prevent the fifth exhaust hole from leaking.

[0014] A circle of fourth annular grooves is arranged on the inner side of the lower part of the pressure cover, and a silicone ring is detachably installed in the fourth annular groove; when the pot cover is placed on the pot body, the lower side of the silicone ring presses against the upper edge of the pot mouth of the pot body.

[0015] Compared with the prior art, the advantages of the present invention are: the pot cover adopts an integrated knob design to complete the opening and closing of the pressure cover and the adjustment of the working pressure, which is simple to operate, safe to use, and prevents incorrect operation; the pressure is controlled by designing a limit groove on the side wall of the opening and closing knob to control the up and down movement distance of the working valve assembly; the opening and closing of the pressure ring is controlled by the cooperation of the second guide groove and the third guide groove, so that the opening and closing knob is in the same rotation operation; the one-button operation function of the pressure ring opening and closing and adjusting the working pressure is realized, and the working pressure is adjusted by the lever principle. The exhaust and air lock operation is convenient, and the sealing and pressurization can be performed, and the exhaust and pressure relief in the pot can be carried out in time, thereby shortening the cooking time and achieving the purpose of energy saving and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structural decomposition of an embodiment of the present invention;

[0017] Figure 2 It is a cross-sectional view of the embodiment of the present invention in a state where the pot body is in a closed state and the safety valve assembly is cut;

[0018] Figure 3 It is a partial cross-sectional view of the embodiment of the present invention in a closed lid state with the pot body and cut along the working valve assembly;

[0019] Figure 4 This is a three-dimensional diagram of the cover plate and the rotating assembly in the embodiment of the present invention in the upper direction;

[0020] Figure 5 A three-dimensional diagram of the cover plate and the rotating assembly in the embodiment of the present invention in the lower direction;

[0021] Figure 6 for Figure 4 A cross-sectional view taken along the direction of the eighth mounting hole;

[0022] Figure 7 A top view of the pressure cover in the embodiment of the present invention in cooperation with the working valve assembly, the safety valve assembly, the buckle assembly, and the drive structure;

[0023] Figure 8 for Figure 7 Middle AA section view;

[0024] Fig. 9 for Figure 7 Middle BB section view;

[0025] Fig.10 A three-dimensional diagram of the cooperation between the pressure cover and the working valve assembly, the safety valve assembly, the buckle assembly, and the driving structure according to an embodiment of the present invention;

[0026] Fig.11 for Fig.10 Schematic diagram of the structure after removing the fixing seat;

[0027] Fig.12 It is a schematic diagram of the structure of the lever structure, the opening and closing knob, the pot lid handle and the connecting piece in accordance with an embodiment of the present invention;

[0028] Fig.13 for Fig.12 A cross-sectional view taken longitudinally in the direction of the connecting member;

[0029] Fig.14 This is a schematic diagram of the structure of a pot lid handle according to an embodiment of the present invention;

[0030] Fig.15 This is a schematic diagram of the structure of a fixing seat according to an embodiment of the present invention;

[0031] Fig.16 It is a structural schematic diagram of the lower side of the fixing seat according to an embodiment of the present invention;

[0032] Fig.17 This is a schematic diagram of the structure of the fixing seat and the lever structure in cooperation with each other according to an embodiment of the present invention;

[0033] Fig.18 for Fig.17 A top view of

[0034] Fig.19 It is a structural schematic diagram of the lever structure of an embodiment of the present invention;

[0035] Fig. 20 It is a structural schematic diagram of the cooperation between the working valve assembly and the lever structure according to an embodiment of the present invention;

[0036] Fig.21 for Fig. 20 A cross-sectional view taken along the longitudinal direction;

[0037] Fig. 22 It is a structural schematic diagram of the working valve assembly of the embodiment of the present invention after the fixing sleeve is removed and the working valve assembly cooperates with the lever structure;

[0038] Fig.23 for Fig. 22 A schematic diagram of the structure in the lower direction;

[0039] Fig.24 It is a schematic structural diagram of a fixing sleeve according to an embodiment of the present invention;

[0040] Fig.25 for Fig.24 A schematic diagram of the structure in the lower direction;

[0041] Fig.26 It is a cross-sectional view of a fixing sleeve cut along the longitudinal direction according to an embodiment of the present invention;

[0042] Fig. 27 This is a schematic diagram of the structure of a lifting member according to an embodiment of the present invention;

[0043] Fig.28 This is a schematic structural diagram of the lower side of the lifting member of an embodiment of the present invention;

[0044] Fig.29 This is a schematic structural diagram of a safety valve assembly according to an embodiment of the present invention;

[0045] Fig.30 It is a cross-sectional view of a safety valve assembly according to an embodiment of the present invention cut along the longitudinal direction;

[0046] Fig.31 It is a cross-sectional view of the embodiment of the present invention in cooperation with the pot body in an open cover state along the safety valve assembly;

[0047] Fig.32 It is a partial cross-sectional view of the embodiment of the present invention, which is in cooperation with the pot body and in the open cover state, taken along the working valve assembly.

[0048] The meanings of the reference numerals in the figure are as follows: 1. pressure cover; 11. first guide groove; 12. first center hole; 13. recess; 14. first exhaust hole; 15. seventh mounting hole; 16. fourth annular groove; 17. silicone ring; 2. panel; 21. second mounting hole; 22. second positioning cylinder; 23. third positioning cylinder; 24. fourth positioning cylinder; 25. fourth groove; 26. eighth mounting hole; 27. limiter; 3. buckle assembly; 31. connector; 32. pressure ring; 33. first mounting hole; 34. guide column; 4. installation Full valve assembly; 41, safety valve upper part; 411, fourth exhaust hole; 412, fourth raised ring; 42, safety valve lower part; 421, fifth exhaust hole; 422, fifth raised ring; 423, first annular groove; 43, safety valve spring; 44, safety valve core; 441, second annular groove; 442, third annular groove; 45, first sealing ring; 46, second sealing ring; 5, working valve assembly; 51, fixing sleeve; 511, mounting groove; 512, third mounting hole; 513, fourth mounting hole; 514, first Second positioning hole; 515, screw hole; 52, positioning shaft; 53, lifting member; 531, first positioning cylinder; 532, fifth mounting hole; 533, positioning column; 534, first slot; 54, valve tube; 541, first raised ring; 55, air valve nut; 551, second exhaust hole; 56, working valve spring; 57, working valve core; 571, second raised ring; 58, air valve housing; 581, third exhaust hole; 582, third sealing ring; 6, lever structure; 61, ball head structure; 62, sixth mounting hole; 6 3. Fork structure; 7. Driving structure; 71. Fixed seat; 711. Second center hole; 712. Second guide groove; 713. First positioning hole; 714. Third clamp; 72. Opening and closing knob; 721. Third center hole; 722. Third guide groove; 723. First clamp; 724. Limiting groove; 8. Rotating assembly; 81. Pot lid handle; 811. Second clamping slot; 812. Third clamping slot; 82. Handle decorative piece; 821. Second clamp; 9. Center stud; 91. Third raised ring; 10. Center nut. DETAILED DESCRIPTION

[0049] The content of the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0050] Example

[0051] See also Figures 1 to 32, which is a venting and air-locking pressure cooker cover, which is placed on the cooker body, and includes a pressure cover 1, a panel 2, a buckle assembly 3, a safety valve assembly 4 for auxiliary exhaust, a working valve assembly 5 for exhaust and pressure regulation, a lever structure 6, a driving structure 7, a rotating assembly 8, a central stud 9 and a central nut 10; the lower part of the rotating assembly 8 is penetrated on the panel 2, the central stud 9 passes through the rotating assembly 8, the driving structure 7 and the pressure cover 1 in sequence and is tightened with the central nut 10, the lower end of the rotating assembly 8 is connected to the driving structure 7 and drives the driving structure 7 to rotate The inner end of the buckle assembly 3 is connected to the driving structure 7, and the buckle assembly 3 slides along the pressure cover 1 as the driving structure 7 rotates and fastens or loosens a set of opposite sides of the pot cover and the pot body; one end of the lever structure 6 is connected to the driving structure 7, and the other end is connected to the working valve assembly 5, and the lever structure 6 is driven by the driving structure 7 to open or close the working valve assembly 5; the safety valve assembly 4 is installed on the pressure cover 1 and can slide up and down along it, the lower end of the safety valve assembly 4 is connected to the inside of the pot body, and the upper end thereof extends out of the panel 2 or retracts into the panel 2 as the air pressure changes.

[0052] When the rotating assembly 8 of the pot cover is rotated, the driving structure 7 can push the lever structure 6 to open or close the working valve assembly 5, thereby realizing the function of exhausting air and relieving pressure or adjusting the pressure in the pot; the driving structure 7 pushes the snap-fit ​​assembly 3, and the pot cover can be opened and closed by one-hand control.

[0053] The pressure cover 1 is provided with a first guide groove 11 and a first center hole 12, and the first center hole 12 is located at the central position of the pressure cover 1 and in the first guide groove 11; the buckling assembly 3 is symmetrically provided with a pair, and each pair of buckling assembly 3 includes a connecting piece 31 and a pressure ring 32 arranged at the outer end of the connecting piece 31, and a first mounting hole 33 is provided on the outer side of the connecting piece 31, and a guide column 34 is provided on the inner side of the connecting piece 31; the connecting piece 31 is installed in the first guide groove 11 and can slide along it, and the two pressure rings 32 can flexibly buckle or release the pot cover and the pot body; the driving structure 7 includes a fixed seat 71 and an opening and closing knob 72; the fixed seat 71 is provided with a second center hole 711, a second guide groove 712 and a first positioning hole 713, and the second guide groove is provided with two, which are respectively arranged on both sides of the second center hole 711, and the first positioning hole 713 is arranged on the side wall of the fixed seat 71 and penetrates the side wall; the opening and closing knob 72 is provided There are a third center hole 721, a third guide groove 722 and a first clamping piece 723; there are two third guide grooves 722, which are respectively located on both sides of the third center hole 721; the side wall of the opening and closing knob 72 is provided with an inclined limiting groove 724; the upper part of the fixing seat 71 is detachably mounted on the lower side of the panel 2, and the opening and closing knob 72 is located in the fixing seat 71; the lower end of the rotating component 8 is connected to the first clamping piece 723 and drives the opening and closing knob 72 to rotate; the guide column 34 passes through the second guide groove and then embeds into the third guide groove 722; a ball head structure 61 is provided at the inner end of the lever structure 6, and the ball head structure 61 passes through the first positioning hole 713 and then is stuck in the limiting groove 724. When the opening and closing knob 72 rotates, the limiting groove 724 slides along the ball head structure 61; the center stud 9 passes through the rotating component 8, the third center hole 721, the second center hole 711, and the first center hole 12 in sequence and is tightened with the center nut 10. When the opening and closing knob 72 is rotated, the third guide groove 722 drives the guide column 34 to force the connecting member 31 to move inward or outward, so that the pressure ring 32 fastens or loosens the pot cover and the pot body. The ball head structure 61 of the lever structure 6 cooperates with the limiting groove 724. When the opening and closing knob 72 is rotated, the limiting groove 724 can slide along the ball head structure 61, forcing the ball head structure 61 to move, so that the lever structure 6 can be activated to open or close the working valve assembly 5. In this embodiment, the limiting groove 724 is a long groove tilted upward in the counterclockwise direction.

[0054] The second guide groove is a linear guide groove, and the length direction of the second guide groove is consistent with the length direction of the first guide groove 11; the third guide groove 722 gradually extends from the outside of the opening and closing knob 72 to the inside to form an arc-shaped guide groove. The third guide groove 722 is an arc-shaped guide groove structure, and the guide column 34 can be forced to slide in the guide groove and twist through the structure of the arc-shaped guide groove, thereby pulling the connecting member 31 to extend or contract, and realizing the opening and closing function of the pressure ring 32.

[0055] The pressure cover 1 is provided with a recess 13 and a first exhaust hole 14, and the panel 2 is provided with a second mounting hole 21; the working valve assembly 5 includes a fixing sleeve 51, a positioning shaft 52, a lifting member 53, a valve pipe 54, an air valve nut 55, a working valve spring 56, a working valve core 57 and an air valve housing 58; the front part of the fixing sleeve 51 is provided with an upwardly opening mounting groove 511, the lower part of the mounting groove 511 is provided with a third mounting hole 512 penetrating the bottom of the fixing sleeve 51, the rear part of the mounting groove 511 is provided with a fourth mounting hole 513 penetrating the bottom of the fixing sleeve 51, and the rear part of the fixing sleeve 51 is provided with a second positioning hole 514; the valve pipe 54 is a cylindrical structure penetrated by a hollow channel, and its upper outer circumference protrudes outward to form a first raised ring 541; one end of the lifting member 53 is provided with a first positioning The cylinder 531 and the fifth mounting hole 532 are provided with a positioning column 533 at the other end, and the positioning column 533 is provided with a first card groove 534; the fifth mounting hole 532 is located above the first positioning cylinder 531 and penetrates the upper and lower sides of the lifting member 53; the working valve core 57 is a cylindrical structure with a chamber and an opening facing downward, and the lower periphery of the working valve core 57 protrudes outward by a circle to form a second raised ring 571; the lower end of the fixed sleeve 51 is placed in the recess 13, and the lower part of the valve tube 54 passes through the third mounting hole 512 and the first exhaust hole 14 of the fixed sleeve 51 in turn, and is threadedly connected with the air valve nut 55 and tightened, and the lower side of the first raised ring 541 presses against the lower structure of the mounting groove 511 around the third mounting hole 512; the air valve nut 55 is provided with a second exhaust hole 551, and the second row The air hole 551 connects the hollow channel of the valve tube 54 with the space of the pot body; the working valve core 57, the working valve spring 56 and the lifting member 53 are placed in the mounting groove 511 of the fixed sleeve 51 in sequence, and the lower end of the working valve core 57 is detachably inserted into the hollow channel of the valve tube 54; the lower end of the working valve spring 56 presses against the upper side of the second raised ring 571, and its upper end presses against the wall of the lifting member 53 around the fifth mounting hole 532, the first positioning cylinder 531 of the lifting member 53 is movably sleeved in the mounting groove 511 of the fixed sleeve 51 and can slide up and down along it, the positioning column 533 is inserted into the fourth mounting hole 513 and can move up and down along it; the lever structure 6 is provided with a sixth mounting hole 62 in the middle, and a fork structure 63 is provided at the outer end; the lever structure 6 is arranged according to the positioning shaft 52 After the second positioning hole 514, the sixth mounting hole 62 and the second positioning hole 514 are drilled, they are hinged on the fixing sleeve 51. The fork structure 63 of the lever structure 6 is clamped on the first clamping groove 534 of the positioning column 533. The air valve housing 58 is installed in the second mounting hole 21. The air valve housing 58 is provided with a third exhaust hole 581 that penetrates the upper and lower sides thereof. The air valve housing 58 is located above the mounting groove 511. Wing plates with screw holes 515 are respectively provided on both sides of the fixing sleeve 51. A pair of second positioning cylinders 22 are provided on the lower side of the panel 2. The fixing sleeve 51 is locked in the second positioning cylinder 22 after the fixing screws pass through the screw holes 515. The working valve core 57 extends out of the fifth mounting hole 532 or retracts into the fifth mounting hole 532 under the pressure of the working valve spring 56.The working valve core 57 rises and lifts the lifting member 53, and the second exhaust hole 551, the hollow channel of the valve tube 54, the installation groove 511 and the third exhaust hole 581 are connected to form an exhaust channel; the lever structure 6 applies pressure to make the lifting member 53 descend, and the working valve core 57 descends accordingly, and the hollow channel of the valve tube 54 is closed. The first raised ring 541 presses against the lower structure of the installation groove 511 to prevent the valve tube 54 from falling off; the lower part of the valve tube 54 is threadedly connected with the air valve nut 55 to achieve fixed installation of the fixing sleeve 51. The installation groove 511 provides a guide for the first positioning cylinder 531. The second positioning cylinder 22 and the screw hole 515 are relatively positioned by tightening the screw sleeve to prevent the working valve assembly 5 from shaking. ;

[0056] The rotating assembly 8 includes a pot lid handle 81 and a handle decorative sheet 82. The upper part of the pot lid handle 81 is an inverted truncated cone structure, and the lower part is a cylindrical structure with a level. The pot lid handle 81 has a receiving cavity that penetrates it from top to bottom. The cylindrical structure at the lower part of the pot lid handle 81 is provided with a second clamping groove 811, and the first clamping member 723 is embedded in the second clamping groove 811. The upper part of the central stud 9 is convex outward to form a third raised ring 91. When the central stud 9 passes through the receiving cavity and is tightened with the central nut 10, the lower side of the third raised ring 91 is against the level. The inner side of the truncated cone structure of the pot lid handle 81 is provided with a third clamping groove 812, and the lower side of the handle decorative sheet 82 is provided with a second clamping member 821, which can be detachably clamped into the third clamping groove 812. The cooperation of the first clamping member 723 and the second clamping groove 811 can realize the linkage between the pot lid handle 81 and the opening and closing knob 72. The cooperation between the second clamping member 821 and the third clamping slot 812 can realize the buckle fixation of the round table structure of the pot cover handle 81 and the handle decorative sheet 82. In this embodiment, three second clamping members 821 are provided, evenly distributed on the lower side of the handle decorative sheet 82, and three third clamping slots 812 are provided accordingly.

[0057] The fixing seat 71 is provided with a third clamping member 714, and the panel 2 is provided with a third positioning cylinder 23 and a fourth positioning cylinder 24, and the third positioning cylinder 23 is located in the fourth positioning cylinder 24; the lower part of the rotating assembly 8 is inserted into the third positioning cylinder 23, and the fourth positioning cylinder 24 is provided with a fourth clamping groove 25, and the third clamping member 714 is detachably clamped into the fourth clamping groove 25; a circular groove is formed in the middle of the first guide groove 11, and the fixing seat 71 is placed in the circular groove. The setting of the circular groove can realize the limiting effect on the fixing seat 71 to prevent lateral displacement. The cooperation between the third clamping member 714 and the fourth clamping groove 25 can realize the buckling fixation of the fixing seat 71 and the panel 2.

[0058] There are three third clamping members 714 evenly distributed on the fixing seat 71 , and the number of the fourth clamping slots 25 matches the number of the third clamping members 714 .

[0059] The fork structure 63 of the lever structure 6 is a double fork with a U-shaped slot, and two first slots 534 are provided. The two first slots 534 are respectively located on the opposite sides of the positioning column 533, and the double plugs of the lever structure 6 are respectively clamped in the two first slots 534; the outermost edge of the valve housing 58 is sleeved with a third sealing ring 582, and the third sealing ring 582 is clamped between the panel 2 and the valve housing 58. The provision of the third sealing ring 582 can make the edge of the valve housing 58 and the panel 2 have sealing performance.

[0060] The safety valve assembly 4 includes a safety valve upper part 41, a safety valve lower part 42, a safety valve spring 43, a safety valve core 44, a first sealing ring 45 and a second sealing ring 46; the interior of the safety valve upper part 41 is a cavity, and a fourth exhaust hole 411 is opened on the top of the safety valve upper part 41 to connect the cavity with the outside, and a circle of the outer periphery of the lower part protrudes outward to form a fourth raised ring 412; the safety valve lower part 42 is a cylindrical structure opening upward, and a fifth exhaust hole 421 is opened on the bottom surface of the safety valve lower part 42, and a circle of the fifth raised ring 422 and a circle of the outer periphery of the bottom of the safety valve lower part 42 are provided. The first annular groove 423 is formed around the safety valve upper part 41, and the first annular groove 423 is located above the fifth raised ring 422; one end of the safety valve core 44 is respectively provided with a second annular groove 441 and a third annular groove 442, and the other end thereof is a ball segment structure; the lower end of the safety valve upper part 41 and the upper end of the safety valve lower part 42 are screwed together through threaded connection, and the safety valve spring 43 and the safety valve core 44 are located in the cavity formed by the safety valve upper part 41 and the safety valve lower part 42; one end of the safety valve spring 43 presses against the inner wall of the safety valve upper part 41, and the other end thereof is clamped in the second annular groove 441 and the third annular groove 442. The first sealing ring 45 is stuck in the third annular groove 442 and pushes against the inner wall of the safety valve lower part 42 around the fifth exhaust hole 421 under the action of the safety valve spring 43; the second sealing ring 46 is stuck in the first annular groove 423, and the lower side of the second sealing ring 46 pushes against the fifth raised ring 422; the pressure cover 1 is provided with a seventh mounting hole 15, which is located at one end of the first guide groove 11, and the seventh mounting hole 15 is located on the same side as the first guide groove 11. The first mounting holes 33 of the connecting member 31 are opposite to each other; the panel 2 is provided with an eighth mounting hole 26, which is opposite to the seventh mounting hole 15; the safety valve assembly 4 is sleeved in the seventh mounting hole 15, the fourth raised ring 412 is located above the pressure cover 1, and the fifth raised ring 422 is located below the pressure cover 1; the top of the safety valve upper member 41 passes through the first mounting hole 33 and is located below the eighth mounting hole 26. As the pressure in the pot body changes, the top of the safety valve upper member 41 extends out of the eighth mounting hole 26 or retracts into the eighth mounting hole 26. The ball-shaped structure of the safety valve core 44 forms a seal on the fifth exhaust hole 421 to create a sealing and pressurizing function. The ball-shaped structure opens the fifth exhaust hole 421 to exhaust and relieve pressure in the pot. The first sealing ring 45 is provided to prevent air leakage in the fifth exhaust hole 421. In this embodiment, the diameters of the fourth protruding ring 412 and the fifth protruding ring 422 are both larger than the diameter of the first exhaust hole 14, so that the safety valve assembly 4 can only move within the range between the first protruding ring 541 and the fifth protruding ring 422. A pair of limiters 27 are respectively provided on the opposite sides of the lower side of the panel 2, and each pair of limiters 27 is respectively located on both sides of the connecting member 31. After assembly, the limiters 27 can constrain the range of movement of the connecting member 31 to prevent the connecting member 31 from moving sideways.

[0061] A circle of fourth annular grooves 16 are arranged on the inner side of the lower part of the pressure cover 1, and a silicone ring 17 is detachably installed in the fourth annular groove 16; when the pot cover is placed on the pot body, the lower side of the silicone ring 17 presses against the upper edge of the pot mouth of the pot body.

[0062] Installation of pot lid handle 81 assembly:

[0063] 1) Place the opening and closing knob 72 on the top of the fixing seat 71, and insert the opening and closing knob 72 on the top of the fixing seat 71 from top to bottom;

[0064] 2) Place the fixing base 71 below the center of the panel 2, and buckle the fixing base 71 into the third slot 812 set below the panel 2 from bottom to top;

[0065] 3) Place the pot cover handle 81 above the center of the panel 2, pass the pot cover handle 81 through the panel 2 from top to bottom, and clamp the second clamping groove 811 set at the front end of the pot cover handle 81 into the first clamping piece 723 set above the opening and closing knob 72;

[0066] 4) Place the central stud 9 above the pot lid handle 81, and pass the central stud 9 through the pot lid handle 81, the opening and closing knob 72 and the fixing seat 71 from top to bottom;

[0067] 5) Place the handle decorative sheet 82 on the pot lid handle 81, align the second clamping piece 821 set below the handle decorative sheet 82 with the third clamping slot 812 set on the pot lid handle 81, and clamp the pot lid handle 81 decorative sheet on the pot lid handle 81 from top to bottom;

[0068] Installation of working valve assembly 5:

[0069] 6) Place the valve tube 54 above the fixing sleeve 51, and insert the valve tube 54 into the hole set in the fixing sleeve 51 from top to bottom;

[0070] 7) Place the working valve spring 56 above the working valve core 57, and thread the working valve spring 56 onto the working valve core 57 from top to bottom;

[0071] 8) Place the working valve core 57 on the top of the fixed sleeve 51, insert the working valve core 57 into the hole set in the fixed sleeve 51 from top to bottom, and press it on the valve tube 54;

[0072] 9) Place the lifting member 53 on the top of the fixed sleeve 51, insert the lifting member 53 into the hole set in the fixed sleeve 51 from top to bottom, and press it on the valve core 57 of the working valve;

[0073] 10) Place the valve housing 58 below the panel 2, and insert the valve housing 58 from bottom to top into the second mounting hole 21 set on the panel 2;

[0074] 11) Place the third sealing ring 582 under the valve housing 58, and put the third sealing ring 582 on the outermost edge of the valve housing 58 from bottom to top;

[0075] 12) Place the fixing sleeve 51 directly below the third sealing ring 582, press the third sealing ring 582 from bottom to top with the upper end of the fixing sleeve 51, and then use the fastening screws to pass through the two screw holes 515 set in the fixing sleeve 51 to lock the fixing sleeve 51 at the set position below the panel 2;

[0076] 13) Place the lever structure 6 below the fixing sleeve 51, move the lever structure 6 from bottom to top to the position set by the fixing sleeve 51, and make the sixth mounting hole 62 of the lever structure 6 concentric with the second positioning hole 514 set by the fixing seat 71, and at the same time, fork the fork structure 63 of the lever structure 6 on the first clamping groove 534 set by the lifting member 53, and pass the front end ball head of the lever structure 6 through the first positioning hole 713 set by the fixing seat 71 and finally clamp it in the limiting groove 724 of the opening and closing knob 72;

[0077] 14) Place the positioning shaft 52 horizontally on one side of the fixing seat 71, and insert the positioning pin into the second positioning hole 514 set in the fixing seat 71, so that the lever structure 6 can be inserted into the fixing sleeve 51;

[0078] Safety valve assembly 4 installation:

[0079] 15) Place the first sealing ring 45 above the safety valve core 44, and put the first sealing ring 45 on the third annular groove 442 set on the safety valve core 44 from top to outside and bottom to bottom;

[0080] 16) Place the safety valve core 44 on the safety valve lower part 42, and insert the safety valve core into the safety valve lower part 42 from top to outside;

[0081] 17) Place the safety valve spring 43 above the safety valve core 44, and press the safety valve spring 43 onto the safety valve core from top to bottom;

[0082] 18) Place the second sealing ring 46 on the top of the safety valve lower part 42, and put the second sealing ring 46 on the first annular groove 423 set on the outer side of the safety valve lower part 42 from top to bottom;

[0083] 19) Place the safety valve lower piece 42 under the pressure cover 1, and insert the safety valve lower piece 42 from bottom to top into the seventh mounting hole 15 set on the pressure cover 1;

[0084] 20) Place the safety valve upper part 41 on the safety valve lower part 42, and tighten it from top to bottom on the safety valve lower part 42 through the set thread, and make the pressure cover 1 stuck in the middle;

[0085] Pressure cover 1 assembly installation:

[0086] 21) Place the silicone ring 17 under the pressure cover 1, and insert the sealing ring into the pressure cover 1 from bottom to top;

[0087] 22) Place two pressure rings 32 on the left and right sides of the pressure cover 1 respectively, and close the pressure rings 32 at the set position of the pressure cover 1 from the outside to the inside;

[0088] Installation of rotating assembly 8, working valve assembly 5 and pressure cover 1 assembly:

[0089] 23) Place the rotating assembly 8 above the pressure cover 1 assembly, and align the guide column 34 of the pressure ring 32 with the third guide groove 722 set by the opening and closing knob 72 of the pressure cover 1 assembly, and pass the guide column 34 set by the pressure ring 32 through the third guide groove 722 set by the opening and closing knob 72 from bottom to top; and pass the center stud 9 of the rotating assembly 8 through the center hole set by the pressure cover 1, and then use the center nut 10 to lock the center stud 9 on the pressure cover 1, and at the same time, pass the valve tube 54 in the working valve assembly 5 through the working valve installation hole (first exhaust hole 14) set by the pressure cover 1, and then use the valve nut 55 to lock the valve tube 54 from the bottom of the pressure cover 1; complete the overall installation of the pot cover.

[0090] Installation of pot body assembly:

[0091] 24) Place two side ears on the left and right sides of the pot body, bring the side ears close to the pot body from the outside to the inside, and weld the side ears to the set positions on the pot body;

[0092] Overall installation:

[0093] 25) Place the pot cover as a whole on top of the pot body assembly, and buckle the pot cover onto the pot body from top to bottom to complete the overall installation.

[0094] The working principle of this embodiment:

[0095] 1) When the lid handle 81 is rotated counterclockwise, the opening and closing knob 72 is driven to rotate. Since the limit groove 724 set on the opening and closing knob 72 is a long groove obliquely upward in the counterclockwise direction, as the opening and closing knob 72 rotates, the limit groove 724 drives the ball head end of the lever structure 6 to rise upward. Through the lever principle, the fork structure 63 of the lever structure 6 is lowered. Since the fork structure 63 of the lever structure 6 is connected to the lifting member 53, the lifting member 53 is lowered. When the lifting member 53 is lowered, the working valve spring 56 is forced to be compressed. Therefore, the working valve spring 56 pushes the working valve core 57 to The tighter it is pressed down, the tighter the working valve core 57 is pressed, and the less likely the gas will be to spray out from the working valve assembly 5 when the pot is heated, thereby achieving air locking and pressurization of the working valve assembly 5; in addition, when the opening and closing knob 72 is rotated, the arc groove set in the opening and closing knob 72 will tighten inward by driving the guide column 34 set by the pressure ring 32. When the pot cover handle 81 is rotated to the set extreme position, the pressure ring 32 is received inwardly in the tightest state, and the pot body is fastened to complete the lid closing action; similarly, when the knob is turned clockwise, the exhaust and pressure relief functions of the gas valve (working valve assembly 5) and the lid opening action can be realized.

[0096] Innovation:

[0097] 1) This embodiment is a pressure cap 1 that uses a lever structure 6 designed based on the lever principle to adjust the working pressure by increasing and decreasing the pressure through a gas valve;

[0098] 2) An integrated knob design is used to complete the opening and closing of the pressure cover 1 and the working pressure cycle, which is simple / safe and prevents incorrect operation. The pressure is controlled by designing the upper and lower fluctuations of the limit groove 724 of the opening and closing knob 72 to control the upper and lower movement distance of the working valve assembly 5, and the second guide groove and the third guide groove 722 are designed to cooperate in controlling the opening and closing of the pressure ring 32, so that the opening and closing knob 72 is in the same rotation operation; the one-button operation function of opening and closing the pressure ring 32 and adjusting the working pressure rise and fall is realized.

[0099] The above detailed description is a specific description of a feasible embodiment of the present invention. The embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not deviate from the present invention should be included in the patent scope of this case.

Claims

1. A venting and air-locking pressure cooker cover, which is placed on the cooker body, characterized in that: It includes a pressure cover, a panel, a snap-fit ​​assembly, a safety valve assembly for auxiliary exhaust, a working valve assembly for exhaust and pressure regulation, a lever structure, a driving structure, a rotating assembly, a central stud and a central nut; the lower part of the rotating assembly is penetrated on the panel, the central stud passes through the rotating assembly, the driving structure and the pressure cover in sequence and is screwed with the central nut, the lower end of the rotating assembly is connected to the driving structure and drives the driving structure to rotate; the inner end of the snap-fit ​​assembly is connected to the driving structure, the snap-fit ​​assembly slides along the pressure cover as the driving structure rotates and fastens or loosens a group of opposite sides of the pot cover and the pot body; one end of the lever structure is connected to the driving structure, and the other end is connected to the working valve assembly, the lever structure opens or closes the working valve assembly as the driving structure is driven; the safety valve assembly is installed on the pressure cover and can slide up and down along it, the lower end of the safety valve assembly is communicated with the inside of the pot body, and the upper end thereof extends out of the panel or retracts into the panel as the air pressure changes.

2. The exhaust and air-locking pressure cooker lid according to claim 1, characterized in that: The pressure cover is provided with a first guide groove and a first center hole, the first center hole is located at the central position of the pressure cover and is located in the first guide groove; the buckling assembly is symmetrically provided with a pair, and each pair of the buckling assemblies includes a connecting piece and a pressure ring arranged at the outer end of the connecting piece, the outer side of the connecting piece is provided with a first mounting hole, and the inner side of the connecting piece is provided with a guide column; the connecting piece is installed in the first guide groove and can slide along it, and the two pressure rings can flexibly buckle or release the pot cover and the pot body; the driving structure includes a fixed seat and an opening and closing knob; the fixed seat is provided with a second center hole, a second guide groove and a first positioning hole, the second guide groove is provided with two, which are respectively arranged on both sides of the second center hole, and the first positioning hole is arranged on the side wall of the fixed seat and penetrates the side wall; the opening and closing knob The button is provided with a third center hole, a third guide groove and a first clamping piece; the third guide groove is provided with two, respectively located on both sides of the third center hole; the side wall of the opening and closing knob is provided with an inclined limiting groove; the upper part of the fixed seat is detachably mounted on the lower side of the panel, and the opening and closing knob is located in the fixed seat; the lower end of the rotating assembly is connected with the first clamping piece and drives the opening and closing knob to rotate; the guide column is embedded in the third guide groove after passing through the second guide groove; a ball head structure is provided at the inner end of the lever structure, and the ball head structure is stuck in the limiting groove after passing through the first positioning hole, and when the opening and closing knob rotates, the limiting groove slides along the ball head structure; the center stud passes through the rotating assembly, the third center hole, the second center hole, and the first center hole in sequence and is tightened with the center nut.

3. The exhaust and air-locking pressure cooker lid according to claim 2, characterized in that: The second guide groove is a linear guide groove, and the length direction of the second guide groove is consistent with the length direction of the first guide groove; the third guide groove gradually extends from the outer side of the opening and closing knob to the inner side to form an arc-shaped guide groove.

4. The exhaust and air-locking pressure cooker lid according to claim 1, characterized in that: The pressure cover is provided with a recess and a first exhaust hole, and the panel is provided with a second mounting hole; the working valve assembly comprises a fixing sleeve, a positioning shaft, a lifting member, a valve pipe, an air valve nut, a working valve spring, a working valve valve core and an air valve housing; the front part of the fixing sleeve is provided with an upwardly opening mounting groove, the lower part of the mounting groove is provided with a third mounting hole penetrating through the bottom of the fixing sleeve, the rear part of the mounting groove is provided with a fourth mounting hole penetrating through the bottom of the fixing sleeve, and the rear part of the fixing sleeve is provided with a second positioning hole; the valve pipe is a cylindrical structure penetrated by a hollow channel, and its upper outer circumference protrudes outward by a circle to form a first raised ring; one end of the lifting member is provided with a first positioning cylinder and a fifth mounting hole, and the other end is provided with a positioning column, and the positioning column is provided with a first slot; the The five mounting holes are located above the first positioning cylinder and penetrate the upper and lower side surfaces of the lifting member; the working valve core is a cylindrical structure with a chamber and opening downward, and the outer periphery of the lower part of the working valve core protrudes outward in a circle to form a second raised ring; the lower end of the fixed sleeve is placed in the recessed position, and the lower part of the valve pipe is sequentially passed through the third mounting hole and the first exhaust hole of the fixed sleeve and then threadedly connected with the air valve nut and tightened, and the lower side surface of the first raised ring presses against the lower structure of the mounting groove around the third mounting hole; the air valve nut is provided with a second exhaust hole, and the second exhaust hole connects the hollow channel of the valve pipe with the space of the pot body; the working valve core, working valve spring and lifting member are sequentially placed in the mounting groove of the fixed sleeve, and the working The lower end of the working valve core can be removably inserted into the hollow channel of the valve tube; the lower end of the working valve spring presses against the upper side of the second raised ring, and the upper end presses against the wall of the lifting member around the fifth mounting hole; the first positioning cylinder of the lifting member is movably sleeved in the mounting groove of the fixed sleeve and can slide up and down along it, and the positioning column is inserted into the fourth mounting hole and can move up and down along it; the lever structure is provided with a sixth mounting hole in the middle part, and a fork structure is provided at the outer end; the lever structure is hinged to the fixed sleeve after the second positioning hole, the sixth mounting hole and the second positioning hole are successively penetrated by the positioning shaft, and the fork structure of the lever structure is clamped on the first clamping groove of the positioning column; the air valve housing is mounted on the second In the mounting hole, the air valve shell is provided with a third exhaust hole passing through the upper and lower sides thereof, and the air valve shell is located above the mounting groove; wing plates with screw holes are respectively provided on both sides of the fixing sleeve, and a pair of second positioning cylinders are provided on the lower side of the panel, and the fixing sleeve is locked in the second positioning cylinders after passing the screws through the screw holes; the working valve core extends out of the fifth mounting hole or retracts into the fifth mounting hole under the pressure of the working valve spring; the working valve core rises and lifts the lifting member, and the second exhaust hole, the hollow channel of the valve tube, the mounting groove and the third exhaust hole are connected to form an exhaust channel; the lever structure applies pressure to cause the lifting member to descend, and the working valve core descends accordingly, and the hollow channel of the valve tube is closed.

5. The exhaust and air-locking pressure cooker lid according to claim 2, characterized in that: The rotating assembly includes a pot lid handle and a handle decorative sheet. The upper part of the pot lid handle is an inverted conical structure, and the lower part is a cylindrical structure with levels. The pot lid handle has a accommodating cavity that penetrates it from top to bottom; the cylindrical structure at the lower part of the pot lid handle is provided with a second slot, and the first clamping piece is embedded in the second slot; the upper part of the center stud protrudes outward in a circle to form a third raised ring, and when the center stud passes through the accommodating cavity and is tightened with the center nut, the lower side surface of the third raised ring abuts against the level; the inner side of the pot lid handle conical structure is provided with a third slot, and the lower side of the handle decorative sheet is provided with a second clamping piece, and the second clamping piece can be detachably inserted into the third slot.

6. The exhaust and air-locking pressure cooker lid according to claim 2, characterized in that: The fixing seat is provided with a third clamping piece, and the panel is provided with a third positioning cylinder and a fourth positioning cylinder, and the third positioning cylinder is located in the fourth positioning cylinder; the lower part of the rotating assembly is passed through the third positioning cylinder, and the fourth positioning cylinder is provided with a fourth clamping slot, and the third clamping piece can be detachably clamped into the fourth clamping slot; a circular groove is formed in the middle of the first guide groove, and the fixing seat is placed in the circular groove.

7. The exhaust and air-locking pressure cooker lid according to claim 6, characterized in that: There are three third clamping members evenly distributed on the fixing seat, and the number of the fourth clamping slots matches the number of the third clamping members.

8. The exhaust and air-locking pressure cooker lid according to claim 4, characterized in that: The fork structure of the lever structure is a double fork with a U-shaped slot, two first slots are provided, and the two first slots are respectively located on opposite sides of the positioning column, and the double plugs of the lever structure are respectively clamped in the two first slots; the outermost edge of the air valve housing is provided with a third sealing ring, and the third sealing ring is clamped between the panel and the air valve housing.

9. The exhaust and air-locking pressure cooker lid according to claim 2, characterized in that: The safety valve assembly comprises a safety valve upper part, a safety valve lower part, a safety valve spring, a safety valve core, a first sealing ring and a second sealing ring; the interior of the safety valve upper part is a cavity, a fourth exhaust hole is provided on the top of the safety valve upper part to connect the cavity with the outside, and a fourth protruding ring is formed on the outer periphery of the lower part; the safety valve lower part is a cylindrical structure opening upward, a fifth exhaust hole is provided on the bottom surface of the safety valve lower part, a circle of fifth protruding ring and a circle of first annular groove are provided on the outer periphery of the bottom of the safety valve lower part, and the first annular groove is located above the fifth protruding ring; a second annular groove and a third annular groove are provided at one end of the safety valve core, respectively, and a spherical segment structure is provided at the other end; the lower end of the safety valve upper part is screwed together with the upper end of the safety valve lower part by threaded connection, and the safety valve spring and the safety valve core are located in the cavity formed by the safety valve upper part and the safety valve lower part; one end of the safety valve spring presses against the inner wall of the safety valve upper part, and the other end is stuck in the second annular groove and promotes the The spherical segment structure of the safety valve core presses against or opens the fifth exhaust hole; the first sealing ring is clamped in the third annular groove and presses against the inner wall of the safety valve lower part around the fifth exhaust hole under the action of the safety valve spring; the second sealing ring is clamped in the first annular groove, and the lower side of the second sealing ring presses against the fifth raised ring; the pressure cover is provided with a seventh mounting hole, the seventh mounting hole is located on one end of the first guide groove, and the seventh mounting hole is opposite to the first mounting hole of the connecting member located on the same side; the panel is provided with an eighth mounting hole, and the eighth mounting hole is opposite to the seventh mounting hole; the safety valve assembly is sleeved in the seventh mounting hole, the fourth raised ring is located above the pressure cover, and the fifth raised ring is located below the pressure cover; the top of the safety valve upper part passes through the first mounting hole and is located below the eighth mounting hole. As the pressure in the pot body changes, the top of the safety valve upper part extends out of the eighth mounting hole or retracts into the eighth mounting hole.

10. The exhaust and air-locking pressure cooker lid according to claim 1, characterized in that: A circle of fourth annular grooves is arranged on the inner side of the lower part of the pressure cover, and a silicone ring is detachably installed in the fourth annular groove; when the pot cover is placed on the pot body, the lower side of the silicone ring presses against the upper edge of the pot mouth of the pot body.

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