A press-type pressure cooker

Abstract

The utility model discloses a kind of press type pressure cookers, including pot body and pot cover, pot cover includes pressure cover, panel lower piece and panel upper piece, further include torsional spring, open-close button, buckling assembly, center stud, center nut and transmission assembly set in the outer periphery of center stud;Center stud upper end is set in the positioning hole of panel lower piece, its lower end is screwed with center nut after passing through pressure cover;Open-close button is clamped between panel lower piece and panel upper piece, its upper end is exposed outside pot cover after passing through panel upper piece, its lower end triggers transmission assembly with its pressing and drives buckling assembly to buckle or loosen a group of opposite sides of pot cover and pot body;Torsional spring is installed on panel lower piece by pin shaft, torsional spring two ends respectively push against the inner wall of panel lower piece and open-close button top portion. The pressure cooker can complete the function of one-key control opening or folding pot cover by single-hand pressing open-close button;By rotating valve housing, air-lock pressure-keeping or exhaust pressure-relief function can be controlled.

Description

Technical Field

[0001] This utility model relates to the field of kitchen cooking appliances, and in particular to a press-type pressure cooker. Background Technology

[0002] Some pressure cookers on the market use a misaligned interlocking mechanism between the lid and the body, requiring both hands to open and close; others have overly complex structures that make them difficult for users to understand; still others are prone to leaving the lid and body partially open, causing them to leak pressure and potentially leading to safety accidents. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a press-type pressure cooker.

[0004] This utility model is achieved through the following technical solution: a press-type pressure cooker, including a pot body and a lid placed on the pot body. The lid includes a pressure cap, a lower panel, and an upper panel, installed sequentially from bottom to top, and also includes a torsion spring, an opening / closing button, a transmission assembly, a fastening assembly, a central stud, and a central nut. The fastening assembly is installed on the pressure cap. The upper end of the central stud is fitted into a positioning hole in the lower panel, and its lower end passes through the pressure cap and is tightened with the central nut. The transmission assembly is fitted around the outer periphery of the central stud. The opening / closing button is clamped between the lower panel and the upper panel, with its upper end protruding from the upper panel and exposed outside the lid. Its lower end, when pressed, triggers the transmission assembly to drive the fastening assembly to fasten or loosen a pair of opposite sides of the lid and the pot body. The torsion spring is installed on the lower panel via a pin, with one end of the torsion spring abutting against the lower panel and the other end abutting against the inner wall of the top of the opening / closing button.

[0005] This cookware allows for easy opening and closing of the pressure cooker by pressing the opening and closing button with one hand, achieving a one-button opening and closing function. The torsion spring design ensures that the opening and closing button will automatically reset no matter how it is pressed.

[0006] The transmission assembly includes a bracket, positioning plates, gears, pressure plates, rocker teeth, and rocker plates. The bracket is mounted on the pressure cover and is a U-shaped bracket. The bracket includes an inner bottom surface and support plates on both sides of the inner bottom surface, with a pair of first positioning grooves symmetrically formed on the two support plates. The positioning plates, gears, and pressure plates are stacked sequentially on the inner bottom surface of the U-shaped bracket, and the two ends of the pressure plates are fixed to the bracket. The two ends of the rocker plate in the length direction are inclined wing plates with a through hole in the middle, and the two ends of the rocker plate in the width direction are symmetrically provided with rectangular columns. The upper end of the rocker tooth has a rectangular hole, and the lower end has meshing teeth. The fastening assembly... The assembly comprises a pair of locking components, each pair including a pressure ring and a slider. The outer end of the slider is fixed to the pressure ring, the inner side of the inner end of the slider has an internal gear, and the outer side of the inner end of the slider has an external gear. The central stud passes through a through hole, a pressure plate, a gear, a positioning plate, and a bracket coaxially arranged hole. Two rectangular posts are respectively inserted into the first positioning grooves on both sides and can rotate around them. The rectangular hole is sleeved on the outer circumference of one of the rectangular posts and clamped between the support plate and the wing plate. The meshing teeth mesh with the external gear of the slider located on the same side, and the two ends of the gear mesh with the internal gears of the two sliders respectively. The lower end of the opening / closing button can movably touch the wing plate. The rectangular posts and rectangular holes cooperate, so that the swing of the rocker plate causes the rocker teeth to drive the slider to move inward or slide outward through the meshing teeth, thereby realizing the locking or unlocking of the pressure ring.

[0007] The lower panel is provided with a second positioning groove and a third positioning groove. There are two third positioning grooves, located on either side of the second positioning groove. The pin is installed in the middle of the second positioning groove, and its two ends are installed in the third positioning grooves on either side. Two torsion springs are provided, each passing through the pin between the second and third positioning grooves, with opposite installation directions. The free ends of the two torsion springs abut against the inner walls on both sides of the top of the opening / closing button. The second and third positioning grooves provide positioning for the pin; the two torsion springs allow contact at both ends of the opening / closing button, enabling pressing and resetting of the button in both directions.

[0008] The lower panel arches upward in the middle to form an arc-shaped receiving cavity, and the transmission assembly is located in the space between the receiving cavity and the pressure cover. A pair of lower grooves are respectively opened on the opposite side walls of the receiving cavity. The upper panel is an arc-shaped panel that matches the structure of the receiving cavity, and a pair of upper grooves are provided on the lower side of the upper panel. A pair of fixed shafts are symmetrically provided on the middle of both sides of the opening and closing button. The two fixed shafts are respectively clamped in the grooves formed between the upper grooves and the lower grooves and rotate around them. The opening and closing button gradually extends upward from the middle along the length direction to both ends to form a pressing part. The two ends of the lower side of the opening and closing button extend downward to form a trigger part. The trigger part can rotatably touch or move away from the transmission assembly.

[0009] The lower panel has a pair of symmetrical slots at both ends along its width, and a locking element is provided at the top of each slot. The end of the rectangular column is inserted into the slot and can rotate within it, with the rectangular column located below the locking element. The cooperation between the slot and the locking element provides rotational space for the rectangular column, preventing it from falling out.

[0010] It also includes an exhaust valve assembly for venting and regulating pressure. The exhaust valve assembly includes a valve nut, an exhaust valve core, a valve limiting block, a valve sleeve, a valve tube, and a valve housing. The exhaust valve core has a first exhaust channel that extends through its upper and lower sides. A first raised ring protrudes outward from the lower part of the exhaust valve core. The exhaust valve core at the lower end of the first raised ring has a D-shaped shaft structure. The lower panel is recessed downward to form a mounting groove. The mounting groove has a first D-shaped hole that extends through its upper and lower sides. The pressure cover has a second D-shaped hole that is opposite to the position of the first D-shaped hole. A third D-shaped hole is formed on the lower side of the valve limiting block. The D-shaped shaft structure of the exhaust valve core passes through the third D-shaped hole, the first D-shaped hole, and the second D-shaped hole in sequence and is then tightened with the valve nut. The first raised ring abuts against the inner bottom surface of the valve limiting block. The valve tube has a second exhaust channel that extends through its lower side. A conical structure is provided in the center of the top surface, and an exhaust hole is opened on the top surface of the valve tube on the outer side of the conical structure. The exhaust hole and the second exhaust channel pass through the upper and lower sides of the valve tube. A supporting rib is provided on the outer side of the valve sleeve. The valve tube is sleeved on the outer periphery of the exhaust valve core and can move up and down along its outer periphery. The conical structure opens or closes the outlet of the first exhaust channel as the valve tube rises and falls. The valve sleeve is sleeved on the outer periphery of the valve tube, and the lower part of the valve sleeve is embedded in the air valve limiting block and can slide up and down along it. The air valve shell is a cylindrical structure with a downward opening. A first mounting hole is opened on its top surface. A stepped structure is provided on the bottom surface of the air valve shell outside the first mounting hole. The air valve shell is sleeved on the air valve limiting block and can rotate around it. The top of the valve tube passes through the first mounting hole and can slide up and down along it. The stepped structure moves against the supporting rib as the air valve shell rotates, forcing the supporting rib to press down or rise. The three D-shaped holes, in conjunction with the D-shaped shaft structure of the exhaust valve core, prevent the exhaust valve core from wobbling. The valve nut, the first exhaust channel, the second exhaust channel, and the exhaust hole form the exhaust channel. The tapered structure of the valve tube allows for the opening or closing of the first exhaust channel outlet, enabling the venting and locking operations within the pot.

[0011] The valve sleeve is a downward-opening cylindrical structure with a second mounting hole on its top surface and a second protruding ring formed by an outward protrusion at its bottom. Several first recesses are spaced apart on the outer circumference of the second protruding ring, and the second protruding ring between adjacent first recesses forms a first protrusion. The upper side of the inner wall of the valve limiting block protrudes inward to form a second protrusion, and a second recess is formed between adjacent protrusions. When the lower part of the valve sleeve is embedded in the valve limiting block, the first protrusions are embedded in the second recesses and can slide up and down along them, and the second protrusions are embedded in the first recesses and can slide up and down along them. The upper section of the valve tube protrudes outward to form a third protruding ring, and its lower end protrudes outward to form a fourth protruding ring. The diameter of the second mounting hole is smaller than the diameter of the third protruding ring, and the diameter of the second mounting hole is smaller than the diameter of the fourth protruding ring. The fit between the recesses and protrusions allows the valve sleeve to pass through and also prevents the valve sleeve from disengaging from the valve limiting block through rotation of both. The cooperation between the third and fourth raised rings can prevent the valve tube from detaching from the valve sleeve.

[0012] The valve limiting block has a fifth protruding ring at its center. A pair of symmetrical slots on opposite sides of the fifth protruding ring pass through its upper and lower sides, dividing it into two segments. In each segment, one end extends downwards to form a first limiting block, and the other end extends downwards to form a second limiting block. The height between the bottom surface of the first limiting block and the bottom surface of the valve limiting block is greater than the height between the bottom surface of the second limiting block and the bottom surface of the valve limiting block. The second limiting block of one segment is adjacent to the first limiting block of the other segment. A pair of limiting ribs are provided at the bottom of the inner wall of the valve housing. When the valve housing is fitted onto the valve limiting block, the limiting ribs pass through the slots and rotate with the valve housing within the area between the two second limiting blocks. The bayonet setting allows the insertion of the limiting ribs into the air valve housing, enabling the installation of the air valve housing. The limiting ribs rotate in the area between the two second limiting blocks, allowing the air valve housing to rotate while preventing it from detaching from the air valve limiting blocks.

[0013] The stepped structure has two parts, which are evenly arranged on a concentric circle with the center of the first mounting hole as the reference; the supporting ribs have two parts, which are symmetrically arranged on a set of opposite sides on the outer side of the valve sleeve; the stepped structure is a slope structure with an inclined surface, which is composed of several evenly distributed steps.

[0014] The valve housing is a downward-opening cylindrical structure that gradually narrows towards the first mounting hole. The valve housing has a pair of ear-shaped structures and a tail-shaped actuating element. The actuating element and the ear-shaped structures are distributed on both sides of the first mounting hole, with the two ear-shaped structures symmetrically arranged. The tail-shaped actuating element allows for easy gripping and rotation of the valve housing.

[0015] Compared with the existing technology, the advantages of this utility model are: this pressure cooker can complete the function of opening or closing the lid with one hand by pressing the opening and closing button, which is convenient to operate; by rotating the outer shell of the air valve, the function of locking the air and keeping the pressure or releasing the air and releasing pressure can be controlled. Attached Figure Description

[0016] Figure 1 This is an exploded view of the structure of an embodiment of the present utility model;

[0017] Figure 2 This is a perspective view of an embodiment of the present utility model;

[0018] Figure 3 This is a top view of an embodiment of the present utility model;

[0019] Figure 4 for Figure 3 Sectional view along line AA;

[0020] Figure 5 for Figure 3 Sectional view along the BB direction;

[0021] Figure 6 This is a cross-sectional view of the pot lid after the button returns to the center position following the closing of the lid, taken from the safety valve along the longitudinal direction in an embodiment of this utility model.

[0022] Figure 7 This is a perspective view of the pot lid, which is longitudinally cut open along the safety valve after the button returns to the center position following the closing of the lid in an embodiment of this utility model.

[0023] Figure 8 This is a cross-sectional view of the pot lid in the reverse longitudinal direction after the button returns to the center position when the lid is closed, according to an embodiment of the present utility model.

[0024] Figure 9 This is a schematic diagram of the structure of the pressure cover, transmission assembly, and fastening assembly in an embodiment of the present invention.

[0025] Figure 10 This is a schematic diagram of the structure of the pressure cover, transmission assembly, and fastening assembly of this utility model, cut along the side of the rocker teeth.

[0026] Figure 11 This is an exploded view of the structure of the transmission component and the fastening component in an embodiment of the present invention.

[0027] Figure 12 This is a front view of the transmission assembly according to an embodiment of the present utility model;

[0028] Figure 13 for Figure 12 C-axis sectional view;

[0029] Figure 14This is a side view of the transmission assembly according to an embodiment of the present utility model;

[0030] Figure 15 For Figure 14 Sectional view along the DD direction;

[0031] Figure 16 This is a schematic diagram of the transmission assembly according to an embodiment of the present invention;

[0032] Figure 17 This is a schematic diagram of the transmission assembly in another direction according to an embodiment of the present invention;

[0033] Figure 18 This is a top view of the gear and the fastening assembly in an embodiment of the present invention;

[0034] Figure 19 This is a schematic diagram of the structure of the gear and the fastening assembly in an embodiment of the present invention;

[0035] Figure 20 This is a longitudinal section view of the exhaust valve assembly according to an embodiment of the present invention;

[0036] Figure 21 This is a perspective view of the exhaust valve assembly cut along the longitudinal direction according to an embodiment of the present utility model;

[0037] Figure 22 This is an exploded view of the exhaust valve assembly according to an embodiment of the present invention;

[0038] Figure 23 This is an exploded view of the exhaust valve assembly from another direction according to an embodiment of the present invention;

[0039] Figure 24 This is a schematic diagram of the valve tube structure according to an embodiment of the present utility model;

[0040] Figure 25 This is a longitudinal section view of the valve pipe in an embodiment of the present invention.

[0041] Figure 26 This is a cross-sectional view of the valve pipe along the longitudinal direction in an embodiment of the present invention;

[0042] Figure 27 This is a schematic diagram of the valve sleeve in an embodiment of the present utility model;

[0043] Figure 28 This is a schematic diagram of the valve sleeve from another direction according to an embodiment of the present invention;

[0044] Figure 29 This is a schematic diagram of the structure of the air valve limiting block in an embodiment of the present invention;

[0045] Figure 30This is a schematic diagram of the structure of the valve limiting block in another direction according to an embodiment of the present invention;

[0046] Figure 31 This is a longitudinal sectional view of the valve housing according to an embodiment of the present invention;

[0047] Figure 32 This is a schematic diagram of the structure of the valve housing according to an embodiment of the present invention;

[0048] Figure 33 This is a bottom view of the valve housing according to an embodiment of the present invention;

[0049] Figure 34 This is a schematic diagram of the valve housing from another direction according to an embodiment of the present invention;

[0050] Figure 35 This is a schematic diagram of the structure of the lower panel component in an embodiment of this utility model;

[0051] Figure 36 This is a schematic diagram of the lower panel component in another direction according to an embodiment of the present invention;

[0052] Figure 37 This is a longitudinal sectional view of an embodiment of the present invention with the lid closed.

[0053] Figure 38 This is a perspective view of the present invention in its closed state, cut along the longitudinal direction.

[0054] Figure 39 This is a longitudinal sectional view of the button returning to center after the cover is opened, according to an embodiment of the present invention.

[0055] Figure 40 This is a perspective view of the button returning to center after the cover is opened, taken from the longitudinal direction, according to an embodiment of the present invention.

[0056] Figure 41 This is a longitudinal sectional view of an embodiment of the present invention with the lid open.

[0057] Figure 42 This is a perspective view of the embodiment of the present invention with the lid open, cut along the longitudinal direction.

[0058] The following are the meanings of the reference numerals in the attached diagram: 1. Pot body; 11. Side lug; 21. Pressure cap; 22. Lower panel part; 221. Second positioning groove; 222. Third positioning groove; 223. Lower groove; 224. Positioning hole; 225. Slot; 226. Clip; 23. Upper panel part; 231. Upper groove; 24. Central stud; 25. Central nut; 26. Screw; 27. Silicone sealing ring; 3. Opening / closing button; 31. Fixed shaft; 32. Pressing part; 33. Triggering part; 41. Bracket; 411. First positioning groove; 42. Positioning piece; 43. Gear; 44. Pressure piece; 45. Rocking gear; 451. Rectangular hole; 452. Meshing gear; 46. Rocking piece; 461. Wing plate; 462. Rectangular column; 51. Pressure ring; 52. Slider; 53. Internal rack; 54. External rack; 61. Torsion spring; 62. Pin; 71. Valve nut; 72. Exhaust valve core; 721. First raised ring; 73. Valve limiting block; 731. Second recess; 732. Second protrusion; 733. Bayonet; 734. First limiting block; 735. Second limiting block; 74. Valve sleeve; 741. Support rib; 742. Second mounting hole; 743. First recess; 744. First protrusion; 75. Valve pipe; 751. Conical structure; 752. Exhaust hole; 753. Third raised ring; 754. Fourth raised ring; 76. Valve housing; 761. First mounting hole; 762. Stepped structure; 763. Limiting rib; 764. Actuating element; 8. Safety valve. Detailed Implementation

[0059] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0060] Example

[0061] See Figures 1 to 42 This is a press-type pressure cooker, comprising a pot body 1 and a lid placed on the pot body 1. The lid includes a pressure cap 21, a lower panel 22, and an upper panel 23, installed sequentially from bottom to top. It also includes a torsion spring 61, an opening / closing button 3, a transmission assembly, a fastening assembly, a central stud 24, and a central nut 25. The fastening assembly is installed on the pressure cap 21. The upper end of the central stud 24 is fitted into the positioning hole 224 of the lower panel 22, and its lower end passes through the pressure cap 21 and engages with the central nut 25. 5. Tighten the screws. The transmission assembly is sleeved on the outer periphery of the central stud 24. The opening / closing button 3 is clamped between the lower panel 22 and the upper panel 23. Its upper end protrudes from the upper panel 23 and protrudes outside the pot lid. Its lower end triggers the transmission assembly to drive the fastening assembly to fasten or loosen the pot lid and a pair of opposite sides of the pot body 1 when it is pressed. The torsion spring 61 is installed on the lower panel 22 through the pin 62. One end of the torsion spring 61 abuts against the lower panel 22, and the other end of the torsion spring 61 abuts against the inner wall of the top of the opening / closing button 3.

[0062] This cookware allows for easy opening and closing of the pressure cooker by pressing the opening / closing button 3 with one hand, enabling one-button opening and closing of the lid. The torsion spring 61 ensures that the opening / closing button 3 will automatically reset regardless of how it is pressed.

[0063] The transmission assembly includes a bracket 41, a positioning plate 42, a gear 43, a pressure plate 44, a rocker tooth 45, and a rocker plate 46. The bracket 41 is mounted on the pressure cover 21 and is a U-shaped bracket. The bracket 41 includes an inner bottom surface and support plates on both sides of the inner bottom surface. The two support plates are symmetrically provided with a pair of first positioning grooves 411. The positioning plate 42, gear 43, and pressure plate 44 are stacked sequentially on the inner bottom surface of the U-shaped structure of the bracket 41. The two ends of the pressure plate 44 are fixed to the bracket 41. The two ends of the rocker plate 46 in the length direction are inclined wing plates 461 with a through hole in the middle. The two ends of the rocker plate 46 in the width direction are symmetrically provided with rectangular posts 462. The upper end of the rocker tooth 45 is provided with a rectangular hole 451, and the lower end is provided with a meshing tooth 452. The fastening assembly... The components are symmetrically arranged in pairs. Each pair of fastening components includes a pressure ring 51 and a slider 52. The outer end of the slider 52 is fixed on the pressure ring 51. The inner side of the inner end of the slider 52 is provided with an inner rack 53, and the outer side of the inner end of the slider 52 is provided with an outer rack 54. The central stud 24 passes through the through hole, the pressure plate 44, the gear 43, the positioning plate 42, and the bracket 41 in a coaxially arranged hole. Two rectangular posts 462 are respectively inserted into the first positioning grooves 411 on both sides and can rotate around them. A rectangular hole 451 is sleeved on the outer periphery of a rectangular post 462 and clamped between the support plate and the wing plate 461. The meshing teeth 452 mesh with the outer rack 54 of the slider 52 located on the same side. The two ends of the gear 43 respectively mesh with the inner racks 53 of the two sliders 52. The lower end of the opening and closing button 3 can movably touch the wing plate 461. The rectangular post 462 engages with the rectangular hole 451, causing the rocker plate 46 to swing so that the rocker tooth 45 drives the slider 52 to move inward or slide outward through the meshing tooth 452, thereby achieving the tightening or loosening of the pressure ring 51.

[0064] The lower panel 22 is provided with a second positioning groove 221 and a third positioning groove 222. There are two third positioning grooves 222, located on both sides of the second positioning groove 221. The middle part of the pin 62 is installed in the second positioning groove 221, and its two ends are installed in the third positioning grooves 222 on both sides. There are two torsion springs 61, which are respectively inserted on the pin 62 between the second positioning groove 221 and the third positioning groove 222. The two torsion springs 61 are installed in opposite directions. The free ends of the two torsion springs 61 abut against the inner walls on both sides of the top of the open / close button 3. The second positioning groove 221 and the third positioning groove 222 provide positioning function for the pin 62. The two torsion springs 61 can contact both ends of the open / close button 3, which can realize the pressing and resetting of the open / close button 3 in two directions.

[0065] The lower panel 22 arches upward in the middle to form an arc-shaped receiving cavity, and the transmission component is located in the space between the receiving cavity and the pressure cover 21. A pair of lower grooves 223 are respectively provided on the opposite side walls of the receiving cavity. The upper panel 23 is an arc-shaped panel that matches the structure of the receiving cavity. A pair of upper grooves 231 are provided on the lower side of the upper panel 23. A pair of fixed shafts 31 are symmetrically provided on the middle of both sides of the opening and closing button 3. The two fixed shafts 31 are respectively clamped in the groove formed between the upper groove 231 and the lower groove 223 and rotate around it. The opening and closing button 3 gradually extends upward from the middle along the length direction to both ends to form a pressing part 32. The two ends of the lower side of the opening and closing button 3 extend downward to form a trigger part 33. The trigger part 33 can rotatably touch or move away from the transmission component.

[0066] The lower panel 22 has a pair of symmetrical slots 225 at both ends in the width direction, and a retainer 226 is provided at the top of the slots 225. The end of the rectangular post 462 is inserted into the slot 225 and can rotate within the slot 225. The rectangular post 462 is located below the retainer 226. The cooperation between the slots 225 and the retainer 226 provides rotation space for the rectangular post 462 and prevents it from falling out.

[0067] It also includes an exhaust valve assembly for venting and regulating pressure. The exhaust valve assembly includes a valve nut 71, an exhaust valve core 72, a valve limit block 73, a valve sleeve 74, a valve tube 75, and a valve housing 76. The exhaust valve core 72 has a first exhaust channel that passes through its upper and lower sides. A first protruding ring 721 is formed by an outward protrusion in the lower part of the exhaust valve core 72. The exhaust valve core 72 at the lower end of the first protruding ring 721 has a D-shaped shaft structure. The lower panel part 22 is recessed downward to form a mounting groove. The mounting groove is provided with a groove for... The pressure cap 21 has a second D-shaped hole corresponding to the first D-shaped hole, which extends through the upper and lower sides. A third D-shaped hole is provided on the lower side of the valve limiting block 73. The D-shaped shaft structure of the exhaust valve core 72 passes through the third D-shaped hole, the first D-shaped hole, and the second D-shaped hole in sequence before being tightened with the valve nut 71. The first protruding ring 721 abuts against the inner bottom surface of the valve limiting block 73. The valve pipe 75 has a second exhaust channel that extends through its lower side. A cone-shaped section is provided at the center of the inner top surface of the valve pipe 75. The valve tube 75 of the conical structure 751 has an exhaust hole 752 on its top surface, which, along with the second exhaust channel, passes through the upper and lower sides of the valve tube 75. The valve sleeve 74 has supporting ribs 741 on its outer side. The valve tube 75 is fitted around the exhaust valve core 72 and can move up and down along its outer circumference. The conical structure 751 opens or closes the outlet of the first exhaust channel as the valve tube 75 rises and falls. The valve sleeve 74 is fitted around the valve tube 75, and its lower part is embedded in the valve limiting block 73. The valve housing 76 is a downward-opening cylindrical structure with a first mounting hole 761 on its top surface. A stepped structure 762 is located on the bottom inner surface of the valve housing 76 around the first mounting hole 761. The valve housing 76 is fitted onto the valve limiting block 73 and can rotate around it. The top of the valve tube 75 passes through the first mounting hole 761 and can slide up and down along it. The stepped structure 762 moves against the support rib 741 as the valve housing 76 rotates, forcing the support rib 741 to press down or rise. The cooperation between the three D-shaped holes and the D-shaped shaft structure of the exhaust valve core 72 prevents the exhaust valve core 72 from shaking. The valve nut 71, the first exhaust channel, the second exhaust channel, and the exhaust hole 752 form an exhaust channel. The tapered structure 751 of the valve tube 75 opens or closes the outlet of the first exhaust channel, enabling the operation of venting and locking the contents of the pot.

[0068] The valve sleeve 74 is a downward-opening cylindrical structure with a second mounting hole 742 on its top surface and a second protruding ring formed by an outward protrusion at its bottom. Several first recesses 743 are spaced apart on the outer circumference of the second protruding ring, and the second protruding ring between adjacent first recesses 743 forms a first protrusion 744. The upper side of the inner wall of the valve limiting block 73 protrudes inward to form a second protrusion 732, and a second recess 731 is formed between adjacent protrusions. The lower part of the valve sleeve 74 is embedded in the valve limiting block. At position 73, the first protrusion 744 is embedded in the second recess 731 and can slide up and down along it; the second protrusion 732 is embedded in the first recess 743 and can slide up and down along it; the upper circumference of the valve tube 75 protrudes outward to form a third protruding ring 753, and its lower end protrudes outward to form a fourth protruding ring 754. The diameter of the second mounting hole 742 is smaller than the diameter of the third protruding ring 753, and the diameter of the second mounting hole 742 is smaller than the diameter of the fourth protruding ring 754. The fit between the recess and the protrusion allows the valve sleeve 74 to pass through, and the rotation of both can also prevent the valve sleeve 74 from disengaging from the valve limiting block 73. The fit between the third protruding ring 753 and the fourth protruding ring 754 can prevent the valve tube 75 from disengaging from the valve sleeve 74.

[0069] A fifth protruding ring is provided in the middle of the outer periphery of the valve limiting block 73. A set of opposite sides of the fifth protruding ring are symmetrically provided with slots 733 that pass through the upper and lower sides of the fifth protruding ring. The slots 733 divide the fifth protruding ring into two protruding ring segments. In each protruding ring segment, one end extends downward to form a first limiting block 734, and the other end extends downward to form a second limiting block 735. The height between the bottom surface of the first limiting block 734 and the bottom surface of the valve limiting block 73 is greater than the height between the bottom surface of the second limiting block 735 and the bottom surface of the valve limiting block 73. The second limiting block 735 of one protruding ring segment is adjacent to the first limiting block 734 of the other protruding ring segment. A pair of limiting ribs 763 are provided at the bottom of the inner wall of the valve housing 76. When the valve housing 76 is fitted onto the valve limiting block 73, the limiting ribs 763 pass through the slots 733 and rotate with the valve housing 76 in the area between the two second limiting blocks 735. The bayonet 733 is set so that the limiting rib 763 of the air valve housing 76 can be inserted to realize the installation of the air valve housing 76. The limiting rib 763 can rotate in the area between the two second limiting blocks 735, which allows the air valve housing 76 to rotate and also prevents the air valve housing 76 from disengaging from the air valve limiting block 73.

[0070] Two stepped structures 762 are provided, evenly arranged on a concentric circle with the center of the first mounting hole 761 as the reference; two supporting ribs 741 are provided, symmetrically arranged on a set of opposite sides on the outer side of the valve sleeve 74; the stepped structure 762 is a slope structure with an inclined surface, the inclined surface is composed of several evenly distributed steps.

[0071] The valve housing 76 is a downward-opening cylindrical structure that gradually narrows towards the first mounting hole 761. The valve housing 76 has a pair of ear-shaped structures and a tail-shaped actuating element 764. The actuating element 764 and the ear-shaped structures are distributed on both sides of the first mounting hole 761, with the two ear-shaped structures symmetrically arranged. The tail-shaped actuating element 764 allows for easy gripping and rotation of the valve housing 76.

[0072] The pressure cooker in this embodiment is also equipped with a safety valve 8. The safety valve 8 is a mature technology device in the applicant's prior patent. It is not an innovative point in this application and is not protected. Therefore, no specific structural analysis is made.

[0073] Installation in this embodiment:

[0074] (1) Installation of pot body 1

[0075] Place the side ears 11 on the left and right sides of the pot body 1, and spot weld the side ears 11 to the designated positions on the pot body 1 to complete the assembly of the pot body 1.

[0076] (2) Installation of panel components

[0077] 1) Place the center stud 24 below the center of the lower panel part 22, insert the center stud 24 from bottom to top into the hole set in the lower panel part 22, and then set the center stud 24 in the position set in the lower panel part 22.

[0078] 2) Insert the torsion spring 61 into the position set by the pin 62, and then place the pin 62 above the center of the lower panel 22. Place the pin 62 from top to bottom into the groove (second positioning groove 221, third positioning groove 222) set above the lower panel 22.

[0079] 3) Place the opening / closing button 3 above the lower panel 22, and cover the lower panel 22 from top to bottom with the opening / closing button 3, so that the convex cylinders (fixed shafts 31) set on both sides of the opening / closing button 3 are locked in the semi-circular groove (the groove formed between the upper groove 231 and the lower groove 223) set on the upper panel 22.

[0080] 4) Place the upper panel 23 above the lower panel 22, and fasten the upper panel 23 onto the lower panel 22 from top to bottom, so that the opening and closing button 3 passes through the upper panel 23. At the same time, make the two threaded holes set in the upper panel 23 concentric with the through hole set in the lower panel 22. Then tighten the screws 26 in the concentric hole position to complete the panel assembly.

[0081] (3) Installation of pressure cover 21

[0082] 1) Place the positioning piece 42 above the bracket 41 in the set direction, and make the center hole of the positioning piece 42 concentric with the bracket 41; then place the gear 43 above the positioning piece 42, and make the center hole of the gear 43 concentric with the center hole of the positioning piece 42; finally, place the pressure piece 44 above the gear 43 at the set position, and make the pressure piece 44 concentric with the center hole of the gear 43; then spot weld the pressure piece 44 to the bracket 41.

[0083] 2) Spot weld the assembled bracket 41 to the center of the pressure cover 21, and make the center hole of the bracket 41 concentric with the center hole of the pressure cover 21. Then place the pressure ring 51 at the positions set on both sides of the pressure cover 21, moving from the outside to the center of the pressure cover 21, and make the internal rack 53 set at the front end of the slider 52 on both sides mesh correctly with the gear 43.

[0084] 3) Insert the rocker tooth 45 into one side of the rocker plate 46 at the set position, and then clamp the rocker plate 46 from top to bottom above the bracket 41, so that the rocker tooth 45 and the outer rack 54 set at the front end of the slider 52 are properly engaged; so that when the rocker plate 46 is rotated, the pressure rings 51 on both sides can slide outward or towards the center at the same time.

[0085] 4) Unscrew the safety valve 8, insert the lower part of the safety valve 8 into the through hole set in the pressure cover 21 from bottom to top, and then screw on the upper part of the safety valve 8 so that the safety valve 8 can move up and down in the air space set in the pressure cover 21.

[0086] 5) Install the silicone sealing ring 27 from bottom to top inside the pressure cover 21, and make sure that the silicone sealing ring 27 is stuck inside the pressure cover 21 and does not fall down, thus completing the assembly of the pressure cover 21.

[0087] (4) Assembly of the exhaust valve assembly

[0088] Insert the exhaust valve core 72 from top to bottom into the center hole of the valve limiting block 73, then place the valve core on the inner side of the center of the valve tube 75 from top to bottom; then fasten the valve sleeve 74 on the inner side of the valve limiting block 73 from top to bottom according to the set position; then place the valve housing 76 on the set position of the valve limiting block 73 from top to bottom to complete the exhaust valve assembly.

[0089] (5) Overall assembly of the pressure cooker:

[0090] 1) Place the assembled panel assembly on top of the assembled pressure cover 21, and make the central stud 24 in the panel assembly pass through the central hole of the pressure cover 21. At the same time, ensure that the safety valve 8 in the pressure cover 21 assembly is concentric with the through hole set in the panel upper part 23 and can move up and down normally. Then use the central nut 25 to tighten the panel assembly and the pressure cover 21 assembly from bottom to top.

[0091] 2) Insert the exhaust valve core 72 from the assembled exhaust valve assembly into the through hole set in the pressure cover 21, and use the valve nut 71 to lock the exhaust valve onto the pressure cover 21 from bottom to top; complete the assembly of the pressure cooker lid;

[0092] 3) Place the assembled pressure cooker lid onto the assembled pot body 1 from top to bottom to complete the overall assembly of the pressure cooker.

[0093] The working principle of this embodiment:

[0094] 1) Open lid state

[0095] Press one side (right side) of the opening / closing button 3. The lower end of the opening / closing button 3 presses against the rocker plate 46, causing the rocker plate 46 to rotate synchronously to the right. The rocker plate 46 and the rocker tooth 45 are connected through a rectangular slot. Therefore, the rocker plate 46 drives the rocker tooth 45 to rotate synchronously. The rocker tooth 45 meshes with the outer rack 54 at the front end of the slider 52, thus pushing the slider 52 outward. At this time, release the opening / closing button 3. Under the force of the torsion spring 61, the opening / closing button 3 rotates counterclockwise to the left to achieve reset.

[0096] 2) Closed state

[0097] Press the other side (left side) of the opening / closing button 3. The lower end of the opening / closing button 3 presses against the rocker plate 46, causing the rocker plate 46 to rotate synchronously to the left. The rocker plate 46 and the rocker tooth 45 are connected through a rectangular slot. Therefore, the rocker plate 46 drives the rocker tooth 45 to rotate synchronously. The rocker tooth 45 meshes with the outer rack 54 at the front end of the slider 52, thus bringing the slider 52 closer to the center. At this time, release the opening / closing button 3. Under the force of the torsion spring 61, the opening / closing button 3 rotates clockwise to the right to achieve reset.

[0098] This pressure cooker opens and closes by pressing the opening / closing button 3. The opening / closing button 3 swings with a small amplitude, making operation simpler and more convenient. By adding a torsion spring 61 below the opening / closing button 3, the opening / closing button 3 can automatically reset no matter how it is pressed.

[0099] The above detailed description is a specific description of a feasible embodiment of the present utility model. This embodiment is not intended to limit the patent scope of the present utility model. All equivalent implementations or modifications that do not depart from the present utility model should be included in the patent scope of this case.

Claims

1. A press-type pressure cooker, comprising a pot body and a lid resting on the pot body, characterized in that: The pot lid includes a pressure cap, a lower panel, and an upper panel, installed sequentially from bottom to top. It also includes a torsion spring, an opening / closing button, a transmission assembly, a fastening assembly, a central stud, and a central nut. The fastening assembly is mounted on the pressure cap. The upper end of the central stud is fitted into a positioning hole in the lower panel, and its lower end passes through the pressure cap and is tightened with the central nut. The transmission assembly is fitted around the outer periphery of the central stud. The opening / closing button is held between the lower and upper panel, with its upper end protruding from the upper panel and exposed outside the pot lid. Pressing the button triggers the transmission assembly, which in turn drives the fastening assembly to fasten or loosen the pot lid against a pair of opposite sides of the pot body. The torsion spring is mounted on the lower panel via a pin, with one end of the spring abutting against the lower panel and the other end abutting against the inner wall of the top of the opening / closing button.

2. The press-type pressure cooker according to claim 1, characterized in that: The transmission assembly includes a bracket, positioning plates, gears, pressure plates, rocker teeth, and rocker plates. The bracket is mounted on the pressure cover and is a U-shaped bracket. The bracket includes an inner bottom surface and support plates on both sides of the inner bottom surface, with a pair of first positioning grooves symmetrically formed on the two support plates. The positioning plates, gears, and pressure plates are stacked sequentially on the inner bottom surface of the U-shaped bracket, and the two ends of the pressure plates are fixed to the bracket. The two ends of the rocker plate in the length direction are inclined wing plates with a through hole in the middle, and the two ends of the rocker plate in the width direction are symmetrically provided with rectangular columns. The upper end of the rocker tooth has a rectangular hole, and the lower end has meshing teeth. The fastening assembly... The assembly is provided in pairs, each pair of fastening components including a pressure ring and a slider. The outer end of the slider is fixed to the pressure ring, the inner side of the inner end of the slider is provided with an internal rack, and the outer side of the inner end of the slider is provided with an external rack. The central stud passes through a through hole, a pressure plate, a gear, a positioning plate, and a bracket coaxially arranged hole in sequence. The two rectangular posts are respectively inserted into the first positioning grooves on both sides and can rotate around them. The rectangular hole is sleeved on the outer circumference of one of the rectangular posts and clamped between the support plate and the wing plate. The meshing teeth mesh with the external rack of the slider located on the same side, and the two ends of the gear mesh with the internal racks of the two sliders respectively. The lower end of the opening and closing button can movably touch the wing plate.

3. The press-type pressure cooker according to claim 1, characterized in that: The lower panel is provided with a second positioning groove and a third positioning groove. There are two third positioning grooves, located on both sides of the second positioning groove. The middle part of the pin is installed in the second positioning groove, and its two ends are installed in the third positioning grooves on both sides. There are two torsion springs, which are respectively passed through the pin between the second positioning groove and the third positioning groove. The two torsion springs are installed in opposite directions. The free ends of the two torsion springs abut against the inner walls on both sides of the top of the opening and closing button.

4. The press-type pressure cooker according to claim 1, characterized in that: The lower panel arches upward in the middle to form an arc-shaped receiving cavity, and the transmission assembly is located in the space between the receiving cavity and the pressure cover. A pair of lower grooves are respectively opened on the opposite side walls of the receiving cavity. The upper panel is an arc-shaped panel that matches the structure of the receiving cavity, and a pair of upper grooves are provided on the lower side of the upper panel. A pair of fixed shafts are symmetrically provided on the middle of both sides of the opening and closing button. The two fixed shafts are respectively clamped in the grooves formed between the upper grooves and the lower grooves and rotate around them. The opening and closing button gradually extends upward from the middle along the length direction to both ends to form a pressing part. The two ends of the lower side of the opening and closing button extend downward to form a trigger part. The trigger part can rotatably touch or move away from the transmission assembly.

5. The press-type pressure cooker according to claim 2, characterized in that: The lower panel has a pair of symmetrical slots at both ends in the width direction, and a card is provided at the top of the slot; the end of the rectangular column is inserted into the slot and can rotate within the slot, and the rectangular column is located below the card.

6. The press-type pressure cooker according to claim 1, characterized in that: It also includes an exhaust valve assembly for venting and regulating pressure. The exhaust valve assembly includes a valve nut, an exhaust valve core, a valve limiting block, a valve sleeve, a valve tube, and a valve housing. The exhaust valve core has a first exhaust channel that extends through its upper and lower sides. A first raised ring protrudes outward from the lower part of the exhaust valve core. The exhaust valve core at the lower end of the first raised ring has a D-shaped shaft structure. The lower panel is recessed downward to form a mounting groove. The mounting groove has a first D-shaped hole that extends through its upper and lower sides. The pressure cover has a second D-shaped hole that is opposite to the position of the first D-shaped hole. A third D-shaped hole is formed on the lower side of the valve limiting block. The D-shaped shaft structure of the exhaust valve core passes through the third D-shaped hole, the first D-shaped hole, and the second D-shaped hole in sequence and is then tightened with the valve nut. The first raised ring abuts against the inner bottom surface of the valve limiting block. The valve tube has a second exhaust channel that extends through its lower side. A conical structure is provided in the center of the top surface, and an exhaust hole is opened on the top surface of the valve tube on the outer side of the conical structure. The exhaust hole and the second exhaust channel pass through the upper and lower sides of the valve tube. A supporting rib is provided on the outer side of the valve sleeve. The valve tube is sleeved on the outer periphery of the exhaust valve core and can move up and down along its outer periphery. The conical structure opens or closes the outlet of the first exhaust channel as the valve tube rises and falls. The valve sleeve is sleeved on the outer periphery of the valve tube, and the lower part of the valve sleeve is embedded in the air valve limiting block and can slide up and down along it. The air valve shell is a cylindrical structure with a downward opening. A first mounting hole is opened on its top surface. A stepped structure is provided on the bottom surface of the air valve shell outside the first mounting hole. The air valve shell is sleeved on the air valve limiting block and can rotate around it. The top of the valve tube passes through the first mounting hole and can slide up and down along it. The stepped structure moves against the supporting rib as the air valve shell rotates, forcing the supporting rib to press down or rise.

7. The press-type pressure cooker according to claim 6, characterized in that: The valve sleeve is a downward-opening cylindrical structure with a second mounting hole on its top surface and a second protruding ring formed by an outward protrusion at its bottom. Several first recesses are spaced apart on the outer circumference of the second protruding ring, and the second protruding ring between adjacent first recesses forms a first protrusion. The upper side of the inner wall of the air valve limiting block protrudes inward to form a second protrusion, and a second recess is formed between adjacent protrusions. When the lower part of the valve sleeve is embedded in the air valve limiting block, the first protrusion is embedded in the second recess and can slide up and down along it, and the second protrusion is embedded in the first recess and can slide up and down along it. The upper section of the valve tube protrudes outward to form a third protruding ring, and its lower end protrudes outward to form a fourth protruding ring. The diameter of the second mounting hole is smaller than the diameter of the third protruding ring, and the diameter of the second mounting hole is smaller than the diameter of the fourth protruding ring.

8. The press-type pressure cooker according to claim 6, characterized in that: The valve limiting block has a fifth protruding ring at its center. A pair of symmetrical slots on opposite sides of the fifth protruding ring pass through its upper and lower sides, dividing it into two segments. In each segment, one end extends downwards to form a first limiting block, and the other end extends downwards to form a second limiting block. The height between the bottom surface of the first limiting block and the bottom surface of the valve limiting block is greater than the height between the bottom surface of the second limiting block and the bottom surface of the valve limiting block. The second limiting block of one segment is adjacent to the first limiting block of the other segment. A pair of limiting ribs are provided at the bottom of the inner wall of the valve housing. When the valve housing is fitted onto the valve limiting block, the limiting ribs pass through the slots and rotate with the valve housing within the area between the two second limiting blocks.

9. The press-type pressure cooker according to claim 6, characterized in that: The stepped structure has two parts, which are evenly arranged on a concentric circle with the center of the first mounting hole as the reference; the supporting ribs have two parts, which are symmetrically arranged on a set of opposite sides on the outer side of the valve sleeve; the stepped structure is a slope structure with an inclined surface, which is composed of several evenly distributed steps.

10. The press-type pressure cooker according to claim 6, characterized in that: The valve housing is a cylindrical structure with a downward opening, and its top gradually narrows towards the first mounting hole. The valve housing is provided with a pair of ear-shaped structures and a tail-shaped actuating component. The actuating component and the ear-shaped structures are distributed on both sides of the first mounting hole, and the two ear-shaped structures are symmetrically arranged.

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