Knob type pressure cooker with timing function

Abstract

The knob type pressure cooker with the timing function comprises a cooker body and a cooker cover, the cooker cover covers the cooker body, the cooker cover comprises a pressure cover, and a rotary cover lug, an adjusting piece, a driving structure, a fastening structure, an exhaust valve and a timer with the temperature displaying and timing functions are installed on the pressure cover; the rotary cover lug is connected with the driving structure; the driving structure is connected with the adjusting piece and the fastening structure respectively; the exhaust valve is installed on the pressure cover, and the adjusting piece is controlled by the driving structure to clamp or loosen the exhaust valve so as to achieve air closing or exhausting. The fastening structure is controlled by the driving structure to fasten or loosen the pressure cover and the side edge of the pot body; the timer is detachably installed in the rotary cover lug, and the lower end of the timer is located in the pot body and communicated with the interior of the pot. According to the pressure cooker, opening, closing and pressure adjusting are integrated, and one-key control can be achieved; the pot cover adopts modular arrangement, can be divided into independent parts to be assembled, has a timing function, and can display the temperature in the pot in real time.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen cooking utensils, in particular to a knob-type pressure cooker with a timing function. Background Art

[0002] Some pressure cookers on the market are prone to the lid and pot being half-opened and closed during use, causing the pot and lid to not be able to buckle, resulting in pressure leakage in the pot; or safety accidents may occur due to inattention to excessive pressure in the pot during cooking. The existing pressure cookers have complicated opening and closing methods, and require both hands to complete the operation, which is inconvenient to operate; some pressure cookers have too complex structures, making it difficult for users to understand how to use them. In addition, cooking food requires a lot of time, and many people often have trouble grasping the time and temperature, resulting in the food not reaching the ideal state. People often put an alarm clock in the kitchen, but the placement of the alarm clock is also inconvenient in terms of storage and use. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a knob-type pressure cooker with a timing function.

[0004] The present invention is realized through the following technical scheme: a knob-type pressure cooker with a timing function, comprising a cooker body and a cooker cover, wherein the cooker cover is placed above the cooker body, the cooker cover comprises a pressure cover, and the pressure cover is provided with a rotating cover ear, an adjusting member, a driving structure, a fastening structure, an exhaust valve and a timer with temperature display and timing functions; the rotating cover ear is connected to the driving structure, and the driving structure is respectively connected to the adjusting member and the fastening structure; the exhaust valve is installed on the pressure cover, and the adjusting member is controlled by the driving structure to clamp the exhaust valve to achieve air-locking, or the adjusting member is controlled by the driving structure to release the exhaust valve to achieve air discharge; the fastening structure is controlled by the driving structure to fasten or release the side of the pressure cover and the cooker body; the timer is detachably installed in the rotating cover ear, and the lower end of the timer is located in the cooker body and communicated with the cooker.

[0005] By controlling the rotating cover ears, the pressure cover and the pot body can be fastened or loosened through the fastening structure, and the exhaust valve can be controlled by the adjusting part to achieve air-tightening and pressure-maintaining or exhaust and pressure-releasing. The setting of the timer can avoid staying by the stove for a long time.

[0006] The pressure cover comprises an upper panel, a lower panel, an upper fastener and a lower fastener; a first mounting hole is opened at the central position of the upper panel, and the upper fastener is fastened with the lower fastener after passing through the first mounting hole, and the upper panel is clamped between the upper fastener and the lower fastener; a first mounting groove is set at the central position of the lower fastener, and the driving structure is installed in the first mounting groove; the rotating cover ear is clamped on the lower fastener after passing through the upper fastener; the rotating cover ear is recessed from top to bottom to form a second mounting groove, and the timer is installed in the second mounting groove; the rotating cover ear is provided with a center column, and the center column passes through the rotating cover ear, the lower fastener and the lower panel in sequence from top to bottom and is locked with a first locking nut; the first locking nut is opened with a first through hole connecting its inner and outer sides, and the second through hole is penetrated inside the center column, and the second through hole is communicated with the inner cavity of the first locking nut, and the temperature measuring probe at the lower end of the timer is penetrated in the second through hole from top to bottom; the lower fastener is opened with a first sleeve, and the opening of the first sleeve passes through the The upper side of the lower fastener is provided with a second mounting hole, and the upper panel is provided with a third through hole; the exhaust valve comprises an air valve body, a valve cap and a second locking nut, the air valve body is provided with an exhaust passage penetrating its lower side downward, the side wall of the air valve body is provided with a first exhaust hole penetrating the side wall, and the first exhaust hole is connected with the exhaust passage; the valve cap is arranged on the top of the air valve body, the valve cap is provided with a second exhaust hole penetrating its upper and lower sides, and the second exhaust hole connects the first sleeve with the outside of the pot; the diameter of the valve cap is larger than the diameter of the air valve body, and the diameter of the valve cap is larger than the inner diameter of the first sleeve; the air valve body of the exhaust valve passes through the third through hole, the first sleeve and the second mounting hole from top to bottom and is tightened with the second locking nut, and the adjusting member is driven by the driving structure to be stuck in the first exhaust hole or withdraw from the first exhaust hole; the second locking nut is provided with a fourth through hole connecting its inner and outer sides, and the exhaust passage is connected with the inside of the pot through the fourth through hole. The first through hole is connected to the second through hole in the center column through the inner cavity of the first locking nut, and the gas in the pot can enter the second through hole and contact the temperature measuring probe, so as to collect the temperature in real time and transmit the temperature to the timer for display. The gas in the pot enters the exhaust channel of the gas valve body from the fourth through hole of the second locking nut. When the regulating member exits the first exhaust hole, the gas in the exhaust channel enters the first sleeve from the first exhaust hole and is discharged from the pot from the second exhaust hole, thereby realizing the pressure regulating function.

[0007] The driving structure is an eccentric block of a cylindrical structure, a third mounting hole is provided in the center of which penetrates the upper and lower sides thereof, and the center column is passed through the third mounting hole; the eccentric block is clamped between the rotating cover ear and the lower fastener, and the upper outer circumference of the eccentric block is recessed inwardly to form a circle of first level, and the upper fastener is sleeved on the first level; three eccentric grooves are provided at the bottom of the eccentric block, namely the first eccentric groove, the second eccentric groove and the third eccentric groove; with the direction perpendicular to the bottom surface of the eccentric block as the reference, the three eccentric grooves extend in a counterclockwise direction, the first eccentric groove is a circular groove extending gradually from the inside of the eccentric block to the outside, the second eccentric groove is a circular groove extending gradually from the outside of the eccentric block to the inside, and the third eccentric groove is a circular groove extending gradually from the outside of the eccentric block to the inside; the first eccentric groove is located on the outside of the third eccentric groove; the first mounting groove is provided with a pair of guide grooves penetrating the upper and lower sides of the first mounting groove; the fastening structure It comprises a pair of pressure ring assemblies, each of which comprises a pressure ring, a guide cylinder and a connector with a fourth mounting hole, the pressure ring and the guide cylinder being connected to two ends of the connector respectively; the pressure ring is a U-shaped fastener extending in an arc shape, and its longitudinal cross section is a U-shaped clamp; a third mounting groove is provided on the upper side of the lower panel, the two connectors are installed in the third mounting groove and can slide along the third mounting groove, and the two pressure rings flexibly fasten or release the pressure cover and the pot body; the guide cylinder of one connector passes through one guide groove and is then sleeved in the second eccentric groove, and the guide cylinder of the other connector passes through the other guide groove and is then sleeved in the third eccentric groove; a pair of fourth mounting grooves are provided on a group of opposite side edges of the lower fastener, the two connectors are located in the fourth mounting groove, and the connector is clamped between the third mounting groove and the fourth mounting groove; a pull rod is provided at one end of the adjusting member, and the pull rod is sleeved in the first eccentric groove. The setting of the eccentric groove can force the pressure ring assembly to push outward to loosen the pressure cover and the pot body, or force the pressure ring assembly to push inward to buckle the pressure cover and the pot body, and can also force the pull rod to drive the adjustment member to close or open the first exhaust hole. The cooperation of the guide groove and the eccentric groove can restrict the range of movement of the guide cylinder.

[0008] The regulating member comprises a positioning sleeve, in which an air valve column, a pressure spring, a retaining ring and a pressure regulating connecting rod with a through hole in the middle are arranged; a fifth mounting hole connected to the through hole is provided at the front end of the pressure regulating connecting rod, and the pull rod is provided at the rear end thereof; the sealing rubber plug is sleeved at the front end of the air valve column, a circle of first annular raised ring is provided in the middle of the air valve column, and a circle of fifth mounting groove is provided at the rear of the air valve column; the rear end of the air valve column is located in the through hole after passing through the fifth mounting hole, and the retaining ring is clamped in the fifth mounting groove; the pressure spring is sleeved on the outer periphery of the air valve column, one end of which presses against the first annular raised ring, and the other end presses against the end face of the pressure regulating connecting rod; the lower buckle is provided with A positioning slot, wherein the positioning sleeve is arranged in the positioning slot, the positioning slot is adjacent to the first sleeve, the positioning slot is provided with a first guide hole connected with the first sleeve, and the first guide hole is opposite to the first exhaust hole; the lower fastener is provided with a second guide hole connecting the positioning slot with the first mounting slot; the front end of the air valve column is penetrated into the first guide hole and can slide along it, and the rear end of the pressure regulating connecting rod is penetrated into the second guide hole and can slide along it; the front end of the air valve column and the rear end of the pressure regulating connecting rod respectively pass through the outside of the positioning sleeve; the sealing rubber plug is inserted into or exits the first exhaust hole as the air valve column slides.

[0009] A second sleeve is provided on the lower side of the rotating cover ear, the upper part of the inner cavity of the second sleeve is connected to the second mounting groove, and the lower part of the inner cavity of the second sleeve bulges inwardly to form a second annular raised ring; the outer periphery of the central column is a stepped structure with a gradually decreasing diameter from top to bottom, including a third annular raised ring, a fourth annular raised ring and a fifth annular raised ring; the top of the second through hole of the central column is recessed outward to form a circle of second level positions, and the outer part of the rotating cover ear is a stepped structure with a gradually decreasing diameter from top to bottom, and the lowest level is adjacent to the upper level of the second level positions. The part is tightened by threaded connection, and a sealing gasket is sleeved on the outer periphery of the temperature measuring probe, the upper side of the sealing gasket presses against the lower side of the lowest step of the rotating cover ear, and the lower side of the sealing gasket presses against the lower side of the second level; a circle of sixth annular raised ring is provided on the hole position of the central sleeve of the lower fastener at the center of the center column, the lower side of the third annular raised ring presses against the upper side of the second annular raised ring, the lower side of the fourth annular raised ring presses against the upper side of the sixth annular raised ring, and the lower side of the fifth annular raised ring presses against the lower panel.

[0010] A third sleeve is provided at the lower side of the driving structure, and a spring column is provided in the third sleeve; a plurality of positioning recessed holes are provided in the first mounting groove of the lower fastener, and the plurality of positioning recessed holes are distributed along the sliding track of the spring column, and the lower end of the spring column can be moved along the plurality of positioning recessed holes. When the rotating cover ear is rotated, the spring column moves along the positioning recessed holes and makes a sound with a sense of frustration, so that the operator can feel that it has been rotated to the set position and can stop rotating.

[0011] The pressure cover is provided with a pressure-limiting valve, and the pressure-limiting valve comprises an upper valve body, a tensioning spring, a valve plug, a first sealing ring, a second sealing ring and a lower valve body; the interior of the upper valve body is a cavity, the top of which is provided with a third exhaust hole connected to the cavity, and the outer periphery of the lower part is provided with a circle of seventh annular raised ring; one end of the valve plug is respectively provided with a first annular groove and a second annular groove, and the other end is a spherical segment structure; the lower valve body is a cylindrical structure opening upward, the bottom surface of the lower valve body is provided with a fourth exhaust hole, and the bottom of the lower valve body is provided with a third annular groove surrounding a circle; the lower end of the upper valve body is screwed together with the upper end of the lower valve body by threaded connection, and the tensioning spring and the valve plug are located in the cavity formed by the upper valve body and the lower valve body; one end of the tensioning spring presses against the inner wall of the upper valve body, and the other end is stuck in the first annular groove of the valve plug and prompts the spherical segment structure of the valve plug to press against or open the fourth exhaust hole; the first sealing The sealing ring is stuck in the second annular groove and presses against the lower valve body inner wall around the fourth exhaust hole under the action of the tensioning spring; the second sealing ring is stuck in the third annular groove; the lower panel is provided with a sixth mounting hole, the lower fastener is provided with a fourth sleeve with a cavity, the cavity of the fourth sleeve penetrates the upper and lower sides of the lower fastener, and the upper panel is provided with a seventh mounting hole; during installation, the upper end of the lower valve body passes through the sixth mounting hole from bottom to top and is screwed together with the lower end of the upper valve body, and the upper end of the upper valve body passes through the fourth mounting hole, the fourth sleeve, and the seventh mounting hole in sequence; the diameter of the sixth annular raised ring is larger than the diameter of the sixth mounting hole, and the diameter of the bottom of the lower valve body is larger than the diameter of the sixth mounting hole; a trapezoidal gasket is installed in the sixth mounting hole, the trapezoidal gasket is clamped between the lower valve body and the lower panel, and the lower side of the trapezoidal gasket presses against the upper side surface of the second sealing ring.

[0012] The ball-shaped structure of the valve plug seals the fourth exhaust hole to create a pressurized environment. The valve plug opens the fourth exhaust hole to exhaust and release pressure in the pot. The diameter of the sixth annular protrusion ring and the diameter of the bottom of the lower valve body are both larger than the diameter of the sixth mounting hole, which can prevent the pressure limiting valve from falling off. The first sealing ring and the second sealing ring can prevent the fourth exhaust hole from leaking and maintain the pressure-maintaining function. The trapezoidal gasket can seal the gap between the lower valve body and the lower panel.

[0013] The outer circumference of the rotating cover ear is provided with a circle of anti-skid patterns, which can enhance the friction force and facilitate the human hand to pinch the rotating cover ear for rotation.

[0014] The anti-slip pattern is a plurality of convex ribs arranged vertically in parallel.

[0015] A pair of opposite sides of the pot body are respectively provided with pot handles; the pot handles include pot ears, an upper handle piece and a lower handle piece, the pot ears are installed on the side wall of the pot body, the lower handle piece is provided with a groove, the pot ears are sleeved in the groove, the upper handle piece is sleeved in the groove, and the pot ears are clamped between the lower handle piece and the upper handle piece. The pot handle is assembled by snapping, and the pot ears are hidden between the upper handle piece and the lower handle piece, which is more beautiful and avoids being bumped.

[0016] Compared with the prior art, the advantages of the present invention are: the pressure cooker adopts an integrated opening and closing and pressure adjustment setting, which reduces the tediousness of the opening and closing process and can achieve one-touch operation; the lid is opened and closed in a rotating manner, and the required pressure can be adjusted to the required pressure by rotating the lid ears as needed, which is suitable for various cooking pressure requirements; the pot lid adopts a modular setting, and the upper fasteners and the lower fasteners can be assembled as independent parts to reduce the installation dependency; the timer setting has a timing function, which can display the temperature in the pot in real time, and start timing when the temperature in the pot reaches the set value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structural decomposition of an embodiment of the present invention;

[0018] Figure 2 It is a structural schematic diagram of an embodiment of the present invention;

[0019] Figure 3 A side view of an embodiment of the present invention;

[0020] Figure 4 for Figure 3 Middle AA section view;

[0021] Figure 5 A top view of an embodiment of the present invention;

[0022] Figure 6 for Figure 5 Middle BB section view;

[0023] Figure 7 for Figure 6 A partial enlarged view of point E in the middle;

[0024] Figure 8 for Figure 5 Middle CC section view;

[0025] Fig. 9 for Figure 8A partial enlarged view of the F in the middle;

[0026] Fig.10 for Figure 8 A partial enlarged view of the G in the middle;

[0027] Fig.11 for Figure 5 Middle DD section view;

[0028] Fig.12 for Fig.11 A partial enlarged view of the H in the middle;

[0029] Fig.13 It is a cross-sectional view of an embodiment of the present invention cut along the longitudinal direction through the exhaust valve;

[0030] Fig.14 for Fig.13 A partial enlarged view of point I in the middle;

[0031] Fig.15 This is a schematic diagram of the structure of the eccentric block, the exhaust valve and the connecting piece in accordance with an embodiment of the present invention;

[0032] Fig.16 This is a schematic diagram of the structure of the upper panel of an embodiment of the present invention;

[0033] Fig.17 It is a schematic structural diagram of the upper side direction of the upper fastener in an embodiment of the present invention;

[0034] Fig.18 It is a schematic structural diagram of the lower side of the upper fastener of an embodiment of the present invention;

[0035] Fig.19 is a top view of an eccentric block according to an embodiment of the present invention;

[0036] Fig. 20 This is a schematic structural diagram of the upper side of the eccentric block of an embodiment of the present invention;

[0037] Fig.21 This is a schematic structural diagram of the lower side of the eccentric block of an embodiment of the present invention;

[0038] Fig. 22 is a top view of the lower fastener according to an embodiment of the present invention;

[0039] Fig.23 A bottom view of the lower fastener according to an embodiment of the present invention;

[0040] Fig.24 It is a schematic structural diagram of the upper side of the lower fastener according to an embodiment of the present invention;

[0041] Fig.25 It is a schematic structural diagram of the lower side of the lower fastener according to an embodiment of the present invention;

[0042] Fig.26 It is a structural schematic diagram of another viewing direction of the lower side of the lower fastener of an embodiment of the present invention;

[0043] Fig. 27 This is a schematic diagram of the structure of the exhaust valve and the regulating member in cooperation with each other according to an embodiment of the present invention;

[0044] Fig.28 It is a cross-sectional view of the exhaust valve and the regulating member in the embodiment of the present invention cut along the longitudinal direction;

[0045] Fig.29 It is a cross-sectional view of a pressure-limiting valve according to an embodiment of the present invention cut along the longitudinal direction;

[0046] Fig.30 It is a schematic diagram of the structural decomposition of the pressure limiting valve according to an embodiment of the present invention.

[0047] Meanings of reference numerals in the figure: 1, pot body; 21, lower panel; 211, second mounting hole; 212, third mounting groove; 213, sixth mounting hole; 22, upper panel; 221, first mounting hole; 222, third through hole; 223, seventh mounting hole; 31, lower fastener; 311, first mounting groove; 312, first sleeve; 313, guide groove; 314, fourth mounting groove; 315, positioning slot; 316, first guide hole; 317, second guide hole; 318, sixth annular raised ring; 319, positioning recessed hole; 310, fourth sleeve; 3101, L-shaped Bayonet; 32, upper fastener; 321, clamping piece; 4, eccentric block; 41, third mounting hole; 42, first level; 43, first eccentric groove; 44, second eccentric groove; 45, third eccentric groove; 46, third sleeve; 47, spring column; 48, fifth sleeve; 49, plug-in; 5, adjustment piece; 51, positioning sleeve; 52, air valve column; 53, pressure spring; 54, snap ring; 55, pressure adjustment connecting rod; 56, fifth mounting hole; 57, pull rod; 58, sealing rubber plug; 59, first annular raised ring; 510, fifth mounting groove; 511, through hole; 61, pressure force ring; 62, guide cylinder; 63, connecting piece; 64, fourth mounting hole; 7, exhaust valve; 71, air valve body; 711, exhaust channel; 712, first exhaust hole; 72, valve cap; 721, second exhaust hole; 73, second locking nut; 731, fourth through hole; 8, rotating cover ear; 81, second mounting groove; 82, center column; 821, second through hole; 822, third annular raised ring; 823, fourth annular raised ring; 824, fifth annular raised ring; 825, second level; 83, first locking nut; 831, first through hole; 84, second set Cylinder; 85, second annular raised ring; 86, sealing gasket; 87, anti-slip pattern; 88, slot; 9, pressure limiting valve; 91, upper valve body; 911, third exhaust hole; 912, seventh annular raised ring; 92, tension spring; 93, valve plug; 931, first annular groove; 932, second annular groove; 94, first sealing ring; 95, second sealing ring; 96, lower valve body; 961, fourth exhaust hole; 962, third annular groove; 97, trapezoidal gasket; 10, timer; 111, pot ear; 112, handle upper piece; 113, handle lower piece; 114, groove. DETAILED DESCRIPTION

[0048] The content of the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0049] Example

[0050] See also Figures 1 to 30, is a knob-type pressure cooker with a timing function, comprising a pot body 1 and a pot cover, the pot cover is placed above the pot body 1, the pot cover comprises a pressure cover, and the pressure cover is equipped with a rotating cover ear 8, an adjusting member 5, a driving structure, a fastening structure, an exhaust valve 7 and a timer 10 with temperature display and timing functions; the rotating cover ear 8 is connected to the driving structure, and the driving structure is connected to the adjusting member 5 and the fastening structure respectively; the exhaust valve 7 is installed on the pressure cover, and the adjusting member 5 is controlled by the driving structure to clamp the exhaust valve 7 to achieve air sealing, or the adjusting member 5 is controlled by the driving structure to release the exhaust valve 7 to achieve exhaust; the fastening structure is controlled by the driving structure to fasten or loosen the pressure cover and the side of the pot body 1; the timer 10 is detachably installed in the rotating cover ear 8, and the lower end of the timer 10 is located in the pot body 1 and communicated with the pot.

[0051] By controlling the rotating cover ear 8, the pressure cover and the pot body 1 can be fastened or loosened through the fastening structure, and the exhaust valve 7 can be controlled by the adjusting member 5 to achieve air-tightening and pressure-maintaining or exhaust and pressure-releasing; the setting of the timer 10 can avoid staying at the stove for a long time.

[0052] The pressure cover comprises an upper panel 22, a lower panel 21, an upper fastener 32 and a lower fastener 31; a first mounting hole 221 is provided at the central position of the upper panel 22, and the upper fastener 32 is fastened with the lower fastener 31 after passing through the first mounting hole 221 (a plurality of clamping members 321 are provided on the outer periphery of the lower part of the upper fastener 32, and a plurality of L-shaped bayonet holes 3101 are provided on the peripheral wall of the first mounting groove 311 of the lower fastener 31, and the clamping member 321 is inserted from the vertical bayonet hole of the L-shaped bayonet hole 3101 and then rotated and clamped into the horizontal bayonet hole of the L-shaped bayonet hole 3101 to achieve fastening), and the upper panel 22 is clamped between the upper fastener 32 and the lower fastener 31; a first mounting groove 311 is provided at the central position of the lower fastener 31, and the driving structure is installed in the first mounting groove 311; the rotating cover ear 8 is passed through After passing through the upper fastener 32, it is clamped on the lower fastener 31 (in this embodiment, the outer periphery of the second sleeve 84 of the rotating cover ear 8 is provided with a plurality of slots 88, and the upper part of the lower fastener 31 is provided with a fifth sleeve 48, and the fifth sleeve 48 is provided with a third mounting hole 41 and a plurality of plug-ins 49 distributed around the third mounting hole 41. When the second sleeve 84 of the rotating cover ear 8 is inserted into the fifth sleeve 48, the plug-ins 49 are clamped into the slots 88); the rotating cover ear 8 is recessed from top to bottom to form a second mounting groove 81, and the timer 10 is installed in the second mounting groove 81; the rotating cover ear 8 is provided with a central column 82, and the central column 82 passes through the rotating cover ear 8, the lower fastener 31, and the lower panel 21 from top to bottom in sequence and is then locked with a first locking nut 83; the first locking nut 83 is provided with a central column 82, which is tightened inside The first through hole 831 connected to the outside, the second through hole 821 is penetrated inside the center column 82, the second through hole 821 is communicated with the inner cavity of the first locking nut 83, and the temperature measuring probe at the lower end of the timer 10 is penetrated from top to bottom in the second through hole 821; the lower fastener 31 is provided with a first sleeve 312, the opening of the first sleeve 312 passes through the upper side of the lower fastener 31, the lower panel 21 is provided with a second mounting hole 211, and the upper panel 22 is provided with a third through hole 222; the exhaust valve 7 includes an air valve body 71, a valve cap 72 and a second locking nut 73, the air valve body 71 is provided with an exhaust channel 711 penetrating its lower side downward, the side wall of the air valve body 71 is provided with a first exhaust hole 712 penetrating the side wall, and the first exhaust hole 712 is connected to the exhaust channel 7 11 is connected; the valve bonnet 72 is arranged on the top of the air valve body 71, and the valve bonnet 72 is provided with a second exhaust hole 721 which passes through the upper and lower sides thereof, and the second exhaust hole 721 connects the first sleeve 312 with the outside of the pot; the diameter of the valve bonnet 72 is larger than the diameter of the air valve body 71, and the diameter of the valve bonnet 72 is larger than the inner diameter of the first sleeve 312; the air valve body 71 of the exhaust valve 7 passes through the third through hole 222, the first sleeve 312, and the second mounting hole 211 from top to bottom and is tightened with the second locking nut 73, and the adjusting member 5 is driven by the driving structure to be stuck in the first exhaust hole 712 or withdraw from the first exhaust hole 712; the second locking nut 73 is provided with a fourth through hole 731 which connects the inside and the outside thereof, and the exhaust channel 711 is connected with the inside of the pot through the fourth through hole 731.The first through hole 831 is connected to the second through hole 821 in the center column 82 through the inner cavity of the first locking nut 83, and the gas in the pot body 1 can enter the second through hole 821 and contact the temperature measuring probe, so as to collect the temperature in real time and transmit the temperature to the timer 10 and display it. The gas in the pot enters the exhaust channel 711 of the gas valve body 71 from the fourth through hole 731 of the second locking nut 73. When the regulating member 5 exits the first exhaust hole 712, the gas in the exhaust channel 711 enters the first sleeve 312 from the first exhaust hole 712 and is discharged from the pot from the second exhaust hole 721, thereby realizing the pressure regulating function.

[0053] The driving structure is an eccentric block 4 of a cylindrical structure, a third mounting hole 41 penetrating the upper and lower sides of the eccentric block 4 is provided in the center thereof, and a center column 82 is provided in the third mounting hole 41; the eccentric block 4 is clamped between the rotating cover ear 8 and the lower fastener 31, and the upper outer circumference of the eccentric block 4 is concave inward to form a circle of first-level positions 42, and the upper fastener 32 is sleeved on the first-level positions 42; three eccentric grooves are provided at the bottom of the eccentric block 4, namely, a first eccentric groove 43, a second eccentric groove 44 and a third eccentric groove 45; with the direction perpendicular to the bottom surface of the eccentric block 4 as the reference, the three eccentric grooves are arranged in the reverse direction. The first eccentric groove 43 is a circular groove extending from the inside of the eccentric block 4 to the outside, the second eccentric groove 44 is a circular groove extending from the outside of the eccentric block 4 to the inside, and the third eccentric groove 45 is a circular groove extending from the outside of the eccentric block 4 to the inside. The first eccentric groove 43 is located on the outside of the third eccentric groove 45. The first mounting groove 311 is provided with a pair of guide grooves 313 penetrating the upper and lower sides of the first mounting groove 311. The fastening structure includes a pair of pressure ring 61 assemblies, each of which includes a pressure ring 61 assembly. , a guide cylinder 62 and a connecting piece 63 with a fourth mounting hole 64 (in this embodiment, a slide groove is provided in the connecting piece 63, and a fourth mounting hole 64 is provided on the slide groove for sliding of the pressure limiting valve 9), the pressure ring 61 and the guide cylinder 62 are respectively connected to the two ends of the connecting piece 63; the pressure ring 61 is a U-shaped fastener extending in an arc shape, and its longitudinal cross-section is a U-shaped clamp; a third mounting groove 212 is provided on the upper side of the lower panel 21, and the two connecting pieces 63 are installed in the third mounting groove 212 and can slide along it, and the two pressure rings 61 can flexibly buckle or release the pressure The guide cylinder 62 of one connecting member 63 passes through a guide groove 313 and is sleeved in the second eccentric groove 44, and the guide cylinder 62 of another connecting member 63 passes through another guide groove 313 and is sleeved in the third eccentric groove 45; a pair of fourth mounting grooves 314 are provided on a pair of opposite sides of the lower buckle 31, and the two connecting members 63 are located in the fourth mounting grooves 314, and the connecting members 63 are clamped between the third mounting groove 212 and the fourth mounting groove 314; a pull rod 57 is provided at one end of the adjusting member 5, and the pull rod 57 is sleeved in the first eccentric groove 43. The setting of the eccentric groove can force the pressure ring 61 assembly to push outward to loosen the pressure cover and the pot body 1, or force the pressure ring 61 assembly to push inward to buckle the pressure cover and the pot body 1, and can also force the pull rod 57 to drive the adjusting member 5 to close or open the first exhaust hole 712. The cooperation between the guide groove 313 and the eccentric groove can restrict the range of motion of the guide cylinder 62.

[0054] The regulating member 5 comprises a positioning sleeve 51, in which an air valve column 52, a pressure spring 53, a snap ring 54 and a pressure regulating connecting rod 55 with a through hole 511 in the middle are arranged; a fifth mounting hole 56 communicating with the through hole 511 is provided at the front end of the pressure regulating connecting rod 55, and a pull rod 57 is provided at the rear end thereof; a sealing rubber plug 58 is sleeved at the front end of the air valve column 52, a circle of first annular raised ring 59 is provided at the middle part of the air valve column 52, and a circle of fifth mounting groove 510 is provided at the rear part of the air valve column 52; the rear end of the air valve column 52 passes through the fifth mounting hole 56 and is located in the through hole 511, and the snap ring 54 is clamped in the fifth mounting groove 510; the pressure spring 53 is sleeved on the outer periphery of the air valve column 52, one end of which presses against the first annular raised ring 59, and the other end of which presses against the end face of the pressure regulating connecting rod 55; the lower buckle 31 A positioning slot 315 is provided, and a positioning sleeve 51 is arranged in the positioning slot 315. The positioning slot 315 is adjacent to the first sleeve 312. The positioning slot 315 is provided with a first guide hole 316 connected to the first sleeve 312, and the first guide hole 316 is opposite to the first exhaust hole 712; the lower fastener 31 is provided with a second guide hole 317 connecting the positioning slot 315 with the first mounting slot 311; the front end of the air valve column 52 is penetrated in the first guide hole 316 and can slide along it, and the rear end of the pressure regulating connecting rod 55 is penetrated in the second guide hole 317 and can slide along it; the front end of the air valve column 52 and the rear end of the pressure regulating connecting rod 55 are respectively passed out of the outside of the positioning sleeve 51; the sealing rubber plug 58 slides with the air valve column 52 and is inserted into the first exhaust hole 712 or exits the first exhaust hole 712.

[0055] A second sleeve 84 is provided at the lower side of the rotating cover ear 8, the upper part of the inner cavity of the second sleeve 84 is connected to the second mounting groove 81, and the lower part of the inner cavity of the second sleeve 84 is convex inward to form a second annular raised ring 85; the outer periphery of the central column 82 is a stepped structure with a gradually decreasing diameter from top to bottom, including a third annular raised ring 822, a fourth annular raised ring 823 and a fifth annular raised ring 824; the top of the second through hole 821 of the central column 82 is concave outward to form a circle of second level positions 825, and the outer part of the rotating cover ear 8 is a stepped structure with a gradually decreasing diameter from top to bottom, and the lowest level is connected to the second level. The upper part of position 825 is tightened by threaded connection, and a sealing gasket 86 is sleeved on the outer periphery of the temperature measuring probe. The upper side of the sealing gasket 86 presses against the lower side of the lowest step of the rotating cover ear 8, and the lower side of the sealing gasket 86 presses against the lower side of the second-level position 825; a circle of sixth annular raised ring 318 is provided on the hole position of the central sleeve of the lower fastener 31 at the center of the center column 82, the lower side of the third annular raised ring 822 presses against the upper side of the second annular raised ring 85, the lower side of the fourth annular raised ring 823 presses against the upper side of the sixth annular raised ring 318, and the lower side of the fifth annular raised ring 824 presses against the lower panel 21.

[0056] A third sleeve 46 is provided at the lower side of the driving structure, and a spring column 47 is provided in the third sleeve 46; a plurality of positioning recessed holes 319 are provided in the first mounting groove 311 of the lower fastener 31, and the plurality of positioning recessed holes 319 are distributed along the sliding track of the spring column 47, and the lower end of the spring column 47 can be moved along the plurality of positioning recessed holes 319 to switch and move. When the rotating cover ear 8 is rotated, the spring column 47 moves along the positioning recessed holes 319 and emits a sound with a sense of frustration, so that the operator can feel that the rotation has reached the set position and can stop rotating further.

[0057] The pressure cover is provided with a pressure limiting valve 9, which includes an upper valve body 91, a tension spring 92, a valve plug 93, a first sealing ring 94, a second sealing ring 95 and a lower valve body 96; the upper valve body 91 is internally hollow, and a third exhaust hole 911 communicating with the cavity is provided on the top thereof, and a seventh annular raised ring 912 is provided on the outer periphery of the lower portion thereof; a first annular groove 931 and a second annular groove 932 are respectively provided at one end of the valve plug 93, and a spherical segment structure is provided at the other end thereof; the lower valve body 96 is a cylindrical structure opening upward, and the lower valve body A fourth exhaust hole 961 is provided on the bottom surface of the lower valve body 96, and a third annular groove 962 is provided around the bottom of the lower valve body 96; the lower end of the upper valve body 91 and the upper end of the lower valve body 96 are screwed together by threaded connection, and the tension spring 92 and the valve plug 93 are located in the cavity formed by the upper valve body 91 and the lower valve body 96; one end of the tension spring 92 presses against the inner wall of the upper valve body 91, and the other end thereof is clamped in the first annular groove 931 of the valve plug 93 and causes the ball segment structure of the valve plug 93 to press against or open the fourth exhaust hole 961; the first sealing The sealing ring 94 is stuck in the second annular groove 932 and presses against the inner wall of the lower valve body 96 around the fourth exhaust hole 961 under the action of the tension spring 92; the second sealing ring 95 is stuck in the third annular groove 962; the lower panel 21 is provided with a sixth mounting hole 213, the lower fastener 31 is provided with a fourth sleeve 310 with a cavity, the cavity of the fourth sleeve 310 penetrates the upper and lower sides of the lower fastener 31, and the upper panel 22 is provided with a seventh mounting hole 223; during installation, the upper end of the lower valve body 96 is inserted from the sixth mounting hole 213 from the bottom to the top. After passing through, it is screwed together with the lower end of the upper valve body 91, and the upper end of the upper valve body 91 passes through the fourth mounting hole 64, the fourth sleeve 310, and the seventh mounting hole 223 in sequence; the diameter of the sixth annular raised ring 318 is larger than the diameter of the sixth mounting hole 213, and the diameter of the bottom of the lower valve body 96 is larger than the diameter of the sixth mounting hole 213; a trapezoidal gasket 97 is installed in the sixth mounting hole 213, and the trapezoidal gasket 97 is clamped between the lower valve body 96 and the lower panel 21, and the lower side of the trapezoidal gasket 97 presses against the upper side of the second sealing ring 95.

[0058] The ball-shaped structure of the valve plug 93 seals the fourth exhaust hole 961 to create a pressurized environment. The valve plug 93 opens the fourth exhaust hole 961 to exhaust and release pressure in the pot. The diameter of the sixth annular protrusion ring 318 and the diameter of the bottom of the lower valve body 96 are both larger than the diameter of the sixth mounting hole 213, which can prevent the pressure limiting valve 9 from falling off. The first sealing ring 94 and the second sealing ring 95 can prevent the fourth exhaust hole 961 from leaking and maintain the pressure-maintaining function. The trapezoidal gasket 97 can seal the gap between the lower valve body 96 and the lower panel 21.

[0059] The outer periphery of the rotating cover ear 8 is provided with a circle of anti-skid pattern 87. The provision of the anti-skid pattern 87 can enhance the friction force, which is conducive to the hand holding the rotating cover ear 8 for rotation.

[0060] The anti-slip pattern 87 is a plurality of convex ribs arranged vertically in parallel.

[0061] A set of opposite sides of the pot body 1 are respectively provided with pot handles; the pot handles include pot ears 111, an upper handle piece 112 and a lower handle piece 113. The pot ears 111 are installed on the side wall of the pot body 1, and the lower handle piece 113 is provided with a groove 114. The pot ears 111 are sleeved in the groove 114, and the upper handle piece 112 is sleeved in the groove 114. The pot ears 111 are clamped between the lower handle piece 113 and the upper handle piece 112. The pot handle is assembled by buckling, and the pot ears 111 are hidden between the upper handle piece 112 and the lower handle piece 113, which is more beautiful and avoids being bumped.

[0062] Installation of this embodiment:

[0063] (I) Installation of pot handle:

[0064] 1) Move the handle lower part 113 to the position directly below the pot ear 111 and cover the pot ear 111 in the groove 114 set in the handle lower part 113 from bottom to top, and use screws to pass through the pot ear 111 and the handle lower part 113 from top to bottom in the set screw holes to tighten them, and fix the handle lower part 113 under the pot ear 111;

[0065] 2) Move the upper handle piece 112 to the position just above the pot ear 111 and insert the upper handle piece 112 into the groove 114 set in the lower handle piece 113 from top to bottom, so that the pot ear 111 is completely covered by the lower handle piece 113 and the upper handle piece 112;

[0066] (ii) Installation of ear covers:

[0067] 3) Move the sealing gasket 86 to the position just above the center column 82 and insert it into the second through hole 821 set in the center column 82 from top to bottom;

[0068] 4) Move the timer 10 to the top of the center column 82 and insert the timer 10 into the second through hole 821 set in the center column 82 from top to bottom, and sequentially pass through the sealing gasket 86 and the center column 82, and fix the timer 10 above the center column 82 through the cooperation between the thread set on the timer 10 and the threaded hole on the center column 82;

[0069] 5) Move the center column 82 assembled with the timer 10 and the sealing gasket 86 to the position above the rotating cover ear 8, and insert the center column 82 from top to bottom into the circular hole (i.e., the second sleeve 84) set in the rotating cover ear 8;

[0070] (III) Top cover installation

[0071] 6) Move the spring column 47 to the position directly below the eccentric block 4 and insert the spring column 47 from bottom to top into the third sleeve 46 set below the eccentric block 4;

[0072] 7) Move the eccentric block 4 to the position just above the lower fastener 31 and place the eccentric block 4 on the lower fastener 31 from top to bottom, so that the concave hole set below the eccentric block 4 cooperates with the convex platform set above the lower fastener 31, so that the eccentric block 4 and the lower fastener 31 remain concentric;

[0073] 8) Move the upper panel 22 to the position just above the lower fastener 31 and buckle the panel on the lower fastener 31 from top to bottom, so that the upper panel 22 and the lower fastener 31 remain concentric through the cooperation between the boss set on the lower fastener 31 and the bayonet set on the upper panel 22;

[0074] 9) Move the upper fastener 32 to the top of the lower fastener 31, and pass the upper fastener 32 through the upper panel 22 and the eccentric block 4 from top to bottom, and clamp the upper fastener 32 and the eccentric block 4 between the upper fastener 32 and the lower fastener 31. Fix the lower fastener 31 and rotate the upper fastener 32 clockwise to clamp the clip set by the upper fastener 32 into the clip set by the lower fastener 31, so that the upper fastener 32 can press the upper panel 22 and cannot rotate;

[0075] 10) Move the adjusting member 5 to the lower part of the lower fastener 31, and move the adjusting member 5 from top to bottom to the installation position set by the lower fastener, and fix the adjusting member 5 to the position set below the lower fastener 31 by means of screws and positioning sleeves 51; at this time, the air valve column 52 at the front end of the adjusting member 5 passes through the adjusting hole (first guide hole 316) set by the lower fastener 31; the pull rod 57 at the rear end of the adjusting member 5 passes through the first eccentric groove 43 set by the eccentric block 4;

[0076] 11) Move the exhaust valve 7 to above the third through hole 222 set on the upper panel 22, and pass the exhaust valve 7 through the upper panel 22, the lower fastener 31, and the lower panel 21 from top to bottom. During this process, the center of the first exhaust hole 712 set on the exhaust valve 7 needs to be aligned with the center of the valve column 52 of the adjusting member 5; move the second locking nut 73 to below the circular hole (second mounting hole 211) set on the lower panel 21, and move the second locking nut 73 from bottom to top to tighten with the exhaust valve 7; complete the installation of the upper cover;

[0077] (IV) Installation of lower cover:

[0078] 12) Move the trapezoidal gasket 97 to the top of the lower panel 21, align the trapezoidal gasket 97 with the sixth mounting hole 213 set on the lower panel 21; insert the lower half of the trapezoidal gasket 97 into the sixth mounting hole 213 set on the lower panel 21 from top to bottom;

[0079] 13) Move the pressure ring 61 radially outward from the lower panel 21, and move it from the outside to the inside along the third mounting groove 212 set on the lower panel 21 toward the center of the lower panel 21, and stop moving it when the fourth mounting hole 64 set on the pressure ring 61 is aligned with the center of the sixth mounting hole 213 set on the lower panel 21;

[0080] 14) After unscrewing the lower end cover of the pressure-limiting valve 9, move the pressure-limiting valve 9 to the top of the fourth mounting hole 64 set by the pressure ring 61, and insert the pressure-limiting valve 9 into the fourth mounting hole 64 set by the pressure ring 61 from top to bottom, and pass through the pressure ring 61 and the lower panel 21 in sequence, and move the lower end cover of the pressure-limiting valve 9 (i.e., the lower valve body 96) to the bottom of the sixth mounting hole 213 set by the lower panel 21, and move it from bottom to top until it is tightened with the pressure-limiting valve 9 (the upper valve body 91);

[0081] (V) Overall installation

[0082] 15) Move the center column 82 (i.e., the installation part of the cover ear) assembled with the rotating cover ear 8, the center column 82, and the sealing gasket 86 to the top of the upper fastener 32, and insert the center column 82 from top to bottom into the set circular hole of the upper fastener 32, and pass through the rotating cover ear 8, the upper fastener 32, the eccentric block 4, the lower fastener 31, and the lower panel 21 in sequence. During this process, the guide cylinder 62 at the upper end of the pressure ring 61 needs to be inserted into the second eccentric groove 44 set in the eccentric block 4 (the guide cylinder 62 of one pressure ring 61 is inserted into the second eccentric groove 44, and the guide cylinder 62 of the other pressure ring 61 is inserted into the third eccentric groove 45), move the first locking nut 83 to the bottom below the lower panel 21, and move the first locking nut 83 from bottom to top to tighten it with the center column 82;

[0083] 16) Move the pot cover to the top of the pot body 1, rotate the rotating cover ear 8 counterclockwise, then the pressure ring 61 extends outward, move the pot cover from top to bottom to the upper end of the pot body 1, rotate the rotating cover ear 8 clockwise, the pressure ring 61 locks the pot body 1, and the overall installation is completed.

[0084] Working principle:

[0085] 1) Closing principle: Hold the lid ear to fix the pot body, rotate the rotating lid ear 8 in counterclockwise direction, and the rotating lid ear 8 drives the eccentric block 4 to rotate while rotating. The eccentric circular groove 2 of the eccentric block 4 drives the pressure ring 61 to approach the center. When it approaches to the set distance, the pressure ring 61 stops approaching and buckles the pot body; continue to rotate the rotating lid ear 8 counterclockwise, the eccentric block 4 continues to rotate counterclockwise, and the first eccentric groove 43 of the eccentric block 4 drives the pull rod 57 in the adjusting member 5 to push outward away from the center, and the front end of the adjusting rod (the sealing rubber plug 58 of the air valve column 52) gradually approaches the exhaust valve 7. When it rotates to the set position, the spring column 47 emits a sense of frustration, allowing the operator to feel that it has rotated to the set position and can stop rotating. At this time, the adjustment is closely combined with the exhaust valve 7 to form a relatively sealed space inside, completing the closing process of the pressure cooker lid.

[0086] 2) Principle of opening the lid: hold the lid ear to fix the pot body, rotate the rotating lid ear 8 in clockwise direction, and the rotating lid ear 8 drives the eccentric block 4 to rotate at the same time. The second eccentric groove 44 and the third eccentric groove 45 of the eccentric block 4 drive the two pressure rings 61 away from the center, and the first eccentric groove 43 drives the pull rod 57 in the adjusting member 5 to move toward the center. When it rotates to the set position, the spring column 47 emits a sense of frustration, allowing the operator to feel that it has rotated to the set position. At this time, the pressure ring 61 has been loosened and moved away from the pot body, and the front end of the adjusting rod (the sealing rubber plug 58 of the air valve column 52) is away from the exhaust valve 7, and the pot lid is lifted up to complete the opening process.

[0087] 3) Air locking principle: After the lid is closed, the pot has become a sealed space. When the bottom of the pot is heated, the gas in the pot expands due to the heat, and the gas in the pot cannot flow out, and the air pressure rises. When the air pressure rises to the set value (4KPa), the pressure limiting valve 9 is pushed up by the gas (at this pressure value, the entire pressure limiting valve 9 rises and has a self-locking function). Continue heating, and the air pressure in the pot continues to rise. When the air pressure rises to the limited value (140Kpa-200Kpa, this limited value is the safety pressure, which is another safety function of the pressure limiting valve 9, generally 1.4 to 2 times the working pressure), the gas pushes up the tensioning spring 92 under the pressure limiting valve 9, and the gas flows out from the middle of the pressure limiting valve 9 to keep a stable air pressure in the pot.

[0088] Principle of exhaust pressure regulation: when exhaust pressure regulation is needed, rotate the rotating cover ear 8 clockwise, the rotating cover ear 8 drives the eccentric block 4 to rotate, and the first eccentric groove 43 of the eccentric block 4 drives the adjusting rod (the sealing plug 58 of the air valve column 52) to gradually move away from the exhaust valve 7. When the regulating valve is farther away from the exhaust valve 7, the larger the hole gap in the regulating valve, the faster the gas in the pot is discharged. When the speed of gas discharge is faster than the speed of heating gas generation, the air pressure in the pot gradually decreases. When the air pressure in the pot drops to a pressure value lower than 5KPa, the air pressure is not enough to lift the pressure limiting valve 9, and the pressure limiting valve 9 drops downward to complete the exhaust process.

[0089] Innovation:

[0090] 1) A timer 10 is added to display the temperature in the pot in real time and start timing when the temperature in the pot reaches the set value;

[0091] 2) The lid is opened and closed by rotating, which is simple and quick to operate and increases the sense of operation during use;

[0092] 3) Adjustable air pressure design, according to the needs, the required pressure can be adjusted by rotating the cover ear 8, which can be applied to various cooking pressure requirements;

[0093] 4) The integrated design of opening, closing and pressure regulation reduces the tediousness of the opening and closing process. By rotating the cover ear 8, the cover closing and pressure regulation can be completed in one step.

[0094] 5) The upper cover is modularly designed, and the upper fastener 32 and the lower fastener 31 can be assembled into independent parts, reducing the relevance of the installation process and increasing the versatility of parts;

[0095] 6) The pot handle is designed to be hidden. By combining the upper handle piece 112 with the lower handle piece 113, the pot ear 111 is hidden in the middle of the side ears, which increases the neatness and uniformity of the appearance.

[0096] 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 knob-type pressure cooker with a timing function, comprising a pot body and a pot cover, wherein the pot cover is placed on the pot body, and is characterized in that: The pot cover comprises a pressure cover, on which a rotating cover ear, an adjusting member, a driving structure, a fastening structure, an exhaust valve and a timer with temperature display and timing functions are installed; the rotating cover ear is connected to the driving structure, and the driving structure is respectively connected to the adjusting member and the fastening structure; the exhaust valve is installed on the pressure cover, and the adjusting member is controlled by the driving structure to clamp the exhaust valve to achieve air-locking, or the adjusting member is controlled by the driving structure to release the exhaust valve to achieve exhaust; the fastening structure is controlled by the driving structure to fasten or release the side of the pressure cover and the pot body; the timer is detachably installed in the rotating cover ear, and the lower end of the timer is located in the pot body and communicated with the pot.

2. The knob-type pressure cooker with a timing function according to claim 1, characterized in that: The pressure cover comprises an upper panel, a lower panel, an upper fastener and a lower fastener; a first mounting hole is opened at the central position of the upper panel, and the upper fastener is fastened with the lower fastener after passing through the first mounting hole, and the upper panel is clamped between the upper fastener and the lower fastener; a first mounting groove is set at the central position of the lower fastener, and the driving structure is installed in the first mounting groove; the rotating cover ear is clamped on the lower fastener after passing through the upper fastener; the rotating cover ear is recessed from top to bottom to form a second mounting groove, and the timer is installed in the second mounting groove; the rotating cover ear is provided with a center column, and the center column passes through the rotating cover ear, the lower fastener and the lower panel in sequence from top to bottom and is locked with a first locking nut; the first locking nut is opened with a first through hole connecting its inner and outer sides, and the second through hole is penetrated inside the center column, and the second through hole is communicated with the inner cavity of the first locking nut, and the temperature measuring probe at the lower end of the timer is penetrated in the second through hole from top to bottom; the lower fastener is opened with a first sleeve, and the opening of the first sleeve passes through the The upper side of the lower fastener is provided with a second mounting hole, and the upper panel is provided with a third through hole; the exhaust valve comprises an air valve body, a valve cap and a second locking nut, the air valve body is provided with an exhaust passage penetrating its lower side downward, the side wall of the air valve body is provided with a first exhaust hole penetrating the side wall, and the first exhaust hole is connected with the exhaust passage; the valve cap is arranged on the top of the air valve body, the valve cap is provided with a second exhaust hole penetrating its upper and lower sides, and the second exhaust hole connects the first sleeve with the outside of the pot; the diameter of the valve cap is larger than the diameter of the air valve body, and the diameter of the valve cap is larger than the inner diameter of the first sleeve; the air valve body of the exhaust valve passes through the third through hole, the first sleeve and the second mounting hole from top to bottom and is tightened with the second locking nut, and the adjusting member is driven by the driving structure to be stuck in the first exhaust hole or withdraw from the first exhaust hole; the second locking nut is provided with a fourth through hole connecting its inner and outer sides, and the exhaust passage is connected with the inside of the pot through the fourth through hole.

3. The knob-type pressure cooker with a timing function according to claim 2, characterized in that: The driving structure is an eccentric block of a cylindrical structure, a third mounting hole is provided in the center of which penetrates the upper and lower sides thereof, and the center column is passed through the third mounting hole; the eccentric block is clamped between the rotating cover ear and the lower fastener, and the upper outer circumference of the eccentric block is recessed inwardly to form a circle of first level, and the upper fastener is sleeved on the first level; three eccentric grooves are provided at the bottom of the eccentric block, namely the first eccentric groove, the second eccentric groove and the third eccentric groove; with the direction perpendicular to the bottom surface of the eccentric block as the reference, the three eccentric grooves extend in a counterclockwise direction, the first eccentric groove is a circular groove extending gradually from the inside of the eccentric block to the outside, the second eccentric groove is a circular groove extending gradually from the outside of the eccentric block to the inside, and the third eccentric groove is a circular groove extending gradually from the outside of the eccentric block to the inside; the first eccentric groove is located on the outside of the third eccentric groove; the first mounting groove is provided with a pair of guide grooves penetrating the upper and lower sides of the first mounting groove; the fastening structure It comprises a pair of pressure ring assemblies, each of which comprises a pressure ring, a guide cylinder and a connector with a fourth mounting hole, the pressure ring and the guide cylinder being connected to two ends of the connector respectively; the pressure ring is a U-shaped fastener extending in an arc shape, and its longitudinal cross section is a U-shaped clamp; a third mounting groove is provided on the upper side of the lower panel, the two connectors are installed in the third mounting groove and can slide along the third mounting groove, and the two pressure rings flexibly fasten or release the pressure cover and the pot body; the guide cylinder of one connector passes through one guide groove and is then sleeved in the second eccentric groove, and the guide cylinder of the other connector passes through the other guide groove and is then sleeved in the third eccentric groove; a pair of fourth mounting grooves are provided on a group of opposite side edges of the lower fastener, the two connectors are located in the fourth mounting groove, and the connector is clamped between the third mounting groove and the fourth mounting groove; a pull rod is provided at one end of the adjusting member, and the pull rod is sleeved in the first eccentric groove.

4. The knob-type pressure cooker with a timing function according to claim 3, characterized in that: The regulating member comprises a positioning sleeve, in which an air valve column, a pressure spring, a retaining ring and a pressure regulating connecting rod with a through hole in the middle are arranged; a fifth mounting hole connected to the through hole is provided at the front end of the pressure regulating connecting rod, and the pull rod is provided at the rear end thereof; the sealing rubber plug is sleeved at the front end of the air valve column, a circle of first annular raised ring is provided in the middle of the air valve column, and a circle of fifth mounting groove is provided at the rear of the air valve column; the rear end of the air valve column is located in the through hole after passing through the fifth mounting hole, and the retaining ring is clamped in the fifth mounting groove; the pressure spring is sleeved on the outer periphery of the air valve column, one end of which presses against the first annular raised ring, and the other end presses against the end face of the pressure regulating connecting rod; the lower buckle is provided with A positioning slot, wherein the positioning sleeve is arranged in the positioning slot, the positioning slot is adjacent to the first sleeve, the positioning slot is provided with a first guide hole connected with the first sleeve, and the first guide hole is opposite to the first exhaust hole; the lower fastener is provided with a second guide hole connecting the positioning slot with the first mounting slot; the front end of the air valve column is penetrated into the first guide hole and can slide along it, and the rear end of the pressure regulating connecting rod is penetrated into the second guide hole and can slide along it; the front end of the air valve column and the rear end of the pressure regulating connecting rod respectively pass through the outside of the positioning sleeve; the sealing rubber plug is inserted into or exits the first exhaust hole as the air valve column slides.

5. The knob-type pressure cooker with a timing function according to claim 3, characterized in that: A second sleeve is provided on the lower side of the rotating cover ear, the upper part of the inner cavity of the second sleeve is connected to the second mounting groove, and the lower part of the inner cavity of the second sleeve bulges inwardly to form a second annular raised ring; the outer periphery of the central column is a stepped structure with a gradually decreasing diameter from top to bottom, including a third annular raised ring, a fourth annular raised ring and a fifth annular raised ring; the top of the second through hole of the central column is recessed outward to form a circle of second level positions, and the outer part of the rotating cover ear is a stepped structure with a gradually decreasing diameter from top to bottom, and the lowest level is adjacent to the upper level of the second level positions. The part is tightened by threaded connection, and a sealing gasket is sleeved on the outer periphery of the temperature measuring probe, the upper side of the sealing gasket presses against the lower side of the lowest step of the rotating cover ear, and the lower side of the sealing gasket presses against the lower side of the second level; a circle of sixth annular raised ring is provided on the hole position of the central sleeve of the lower fastener at the center of the center column, the lower side of the third annular raised ring presses against the upper side of the second annular raised ring, the lower side of the fourth annular raised ring presses against the upper side of the sixth annular raised ring, and the lower side of the fifth annular raised ring presses against the lower panel.

6. The knob-type pressure cooker with a timing function according to claim 3, characterized in that: A third sleeve is provided at the lower side of the driving structure, and a spring column is provided in the third sleeve; a plurality of positioning recessed holes are provided in the first mounting groove of the lower buckle, and the plurality of positioning recessed holes are distributed along the sliding track direction of the spring column, and the lower end of the spring column can be movably switched and moved along the plurality of positioning recessed holes.

7. The knob-type pressure cooker with a timing function according to claim 3, characterized in that: The pressure cover is provided with a pressure-limiting valve, and the pressure-limiting valve comprises an upper valve body, a tensioning spring, a valve plug, a first sealing ring, a second sealing ring and a lower valve body; the interior of the upper valve body is a cavity, the top of which is provided with a third exhaust hole connected to the cavity, and the outer periphery of the lower part is provided with a circle of seventh annular raised ring; one end of the valve plug is respectively provided with a first annular groove and a second annular groove, and the other end is a spherical segment structure; the lower valve body is a cylindrical structure opening upward, the bottom surface of the lower valve body is provided with a fourth exhaust hole, and the bottom of the lower valve body is provided with a third annular groove surrounding a circle; the lower end of the upper valve body is screwed together with the upper end of the lower valve body by threaded connection, and the tensioning spring and the valve plug are located in the cavity formed by the upper valve body and the lower valve body; one end of the tensioning spring presses against the inner wall of the upper valve body, and the other end is stuck in the first annular groove of the valve plug and prompts the spherical segment structure of the valve plug to press against or open the fourth exhaust hole; the first sealing The sealing ring is stuck in the second annular groove and presses against the lower valve body inner wall around the fourth exhaust hole under the action of the tensioning spring; the second sealing ring is stuck in the third annular groove; the lower panel is provided with a sixth mounting hole, the lower fastener is provided with a fourth sleeve with a cavity, the cavity of the fourth sleeve penetrates the upper and lower sides of the lower fastener, and the upper panel is provided with a seventh mounting hole; during installation, the upper end of the lower valve body passes through the sixth mounting hole from bottom to top and is screwed together with the lower end of the upper valve body, and the upper end of the upper valve body passes through the fourth mounting hole, the fourth sleeve, and the seventh mounting hole in sequence; the diameter of the sixth annular raised ring is larger than the diameter of the sixth mounting hole, and the diameter of the bottom of the lower valve body is larger than the diameter of the sixth mounting hole; a trapezoidal gasket is installed in the sixth mounting hole, the trapezoidal gasket is clamped between the lower valve body and the lower panel, and the lower side of the trapezoidal gasket presses against the upper side surface of the second sealing ring.

8. The knob-type pressure cooker with a timing function according to claim 1, characterized in that: The outer periphery of the rotating cover ear is provided with a circle of anti-slip grooves.

9. The knob-type pressure cooker with a timing function according to claim 8, characterized in that: The anti-slip pattern is a plurality of convex ribs arranged vertically in parallel.

10. The knob-type pressure cooker with a timing function according to claim 1, characterized in that: A pair of opposite side surfaces of the pot body are respectively installed with pot handles; the pot handles include pot ears, an upper handle piece and a lower handle piece, the pot ears are installed on the side walls of the pot body, the lower handle piece is provided with a groove, the pot ears are sleeved in the groove, the upper handle piece is sleeved in the groove, and the pot ears are clamped between the lower handle piece and the upper handle piece.

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