Cooking utensil

Abstract

The invention relates to a cooking utensil. The cooking utensil comprises a pot body and a pot cover arranged on the pot body in a covering mode, the pot cover comprises a sealing piece used for being in sealing fit with the pot body, and the sealing piece is configured to be capable of elastically deforming so as to be switched between a locking state and an unlocking state; the control mechanism is associated with the sealing element in a power transmission manner and is used for controlling the elastic deformation of the sealing element; wherein a clamping part matched with the pot cover is arranged on the pot body; wherein the sealing piece can be controlled by a control mechanism to form a clamping part, and the clamping part is matched with the clamping part to lock the pot cover on the pot body, so that the locking state is formed; the sealing piece can be controlled by the control mechanism to eliminate the clamping part, so that the pot cover and the pot body are unlocked, and the unlocking state is formed. The cooking utensil is low in cost, convenient to use and good in locking and sealing performance.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen appliances, and in particular to a cooking utensil. Background Art

[0002] Pressure cookers are energy-saving, time-saving and have multiple cooking functions, and are very popular among consumers. Pressure cookers use the physical phenomenon that the boiling point of liquid increases under higher pressure to form a pressure higher than the standard atmospheric pressure in the pot, achieving high-pressure cooking and speeding up the efficiency of stewing food.

[0003] In existing pressure cookers, the pot lid and pot body are generally locked by clamps or teeth. The clamp-type pressure cooker uses a driving part on the pot lid to move the clamp inward and outward, and locks the pot lid and pot body by the clamp, forming a closed state in the pot, and uses a thicker metal clamp to withstand the increased pressure in the pot; the screw-on pressure cooker is to set several teeth on the pot body and the pot lid respectively, and the pot lid is rotated to make the teeth on the pot lid overlap with the teeth on the pot body to achieve the locking of the pot lid and the pot body. However, in the above-mentioned existing locking methods, the clamp pressure cooker has a higher cost because the clamp needs to withstand pressure, the clamp needs to use thicker metal, and the manufacturing process of the clamp is complicated; and the screw-on pressure cooker needs to align the teeth when in use, which is inconvenient to operate and sometimes difficult to align and screw.

[0004] In view of this, it is necessary to propose a new technical solution to overcome the shortcomings of the prior art. Summary of the invention

[0005] In order to solve the technical problems existing in the prior art, the present application provides a cooking utensil which has low cost, is easy to use, and has good locking and sealing properties.

[0006] To this end, the present application adopts the following technical solution: a cooking utensil, comprising a pot body and a pot cover arranged on the pot body, wherein the pot cover comprises:

[0007] a sealing member for forming a sealing fit with the pot body, wherein the sealing member is configured to be elastically deformable to switch between a locked state and an unlocked state; and

[0008] an operating mechanism, which is dynamically connected to the sealing member and is used to operate the elastic deformation of the sealing member;

[0009] Wherein, the pot body is provided with a clamping portion for cooperating with the pot cover;

[0010] Among them, the sealing member can be manipulated by the operating mechanism to construct a holding portion, and the holding portion cooperates with the clamping portion to lock the pot cover on the pot body to form the locked state; the sealing member can be manipulated by the operating mechanism to eliminate the holding portion, so that the pot cover and the pot body are unlocked to form the unlocked state.

[0011] As an improved embodiment, the pot cover includes a support ring contacting the bottom end of the seal and a stop ring contacting the top end of the seal, and the operating mechanism drives the support ring and the stop ring to approach each other to squeeze the seal to deform and form the clamping portion.

[0012] As an improved embodiment, the clamping portion is an annular recess formed at the pot mouth of the pot body, and the holding portion is an annular protrusion protruding and filling the annular recess.

[0013] As an improved embodiment, the operating mechanism includes a rotating component and a lifting component driven by the rotating component, and the lifting component is associated with the supporting ring to lift the supporting ring upward under the drive of the rotating component.

[0014] As an improved embodiment, the pot cover includes a pressure limiting valve, the rotating component has an exhaust triggering portion for triggering the pressure limiting valve to exhaust, and / or the pot cover includes a check valve that can float up and down, and the rotating component has a stop portion blocked by the check valve in a floating state; wherein, the rotating component has an idling stroke while keeping the locked state unchanged, and in the idling stroke of the rotating component, the exhaust triggering portion passes through the pressure limiting valve, and the stop portion passes through the check valve.

[0015] As an improved embodiment, the pot cover includes an inner cover and an outer cover, the inner cover has an inner cover lower edge protruding into the pot body, and the outer cover has an outer cover outer edge supported on the edge of the pot mouth of the pot body; wherein the inner cover lower edge forms the support ring, and the outer cover outer edge forms the stop ring.

[0016] As an improved embodiment, the lifting component includes a stud fixedly connected to the inner cover, and the stud is exposed above the outer cover through an opening on the outer cover; the rotating component includes a knob connected to the stud above the outer cover;

[0017] There are matching grooves and protrusions between the knob and the stud, at least one of the grooves and protrusions is configured as a spiral segment, and the rotational movement of the knob drives the stud to drive the inner cover to move upward or downward through the matching of the grooves and protrusions.

[0018] As an improved embodiment, the upper end portion of the slide groove is connected to a support platform, and the protrusion is supported on the support platform after being separated from the slide groove, and the protrusion slides on the support platform to form the idling stroke.

[0019] As an improved embodiment, the pot lid includes a surface cover installed on the outer cover, the pressure limiting valve includes a valve stem arranged on the surface cover and a sealing valve body arranged on the inner cover, the knob is located above the surface cover, and the exhaust trigger part realizes exhaust by pushing the valve stem downward to open the sealing valve body.

[0020] As an improved embodiment, the pot lid includes a surface cover installed on the outer cover, the check valve includes an indicator member arranged on the surface cover and can float up and down, and a check valve body arranged on the inner cover and can float up and down, when the check valve body floats up, it pushes the indicator member to float up to indicate the upward pressure state.

[0021] As an improved embodiment, an arc-shaped groove for limiting the rotation angle of the knob is provided on the surface cover.

[0022] As an improved embodiment, the pot cover includes an inner cover, and the operating mechanism includes a pull ring passing through the inner cover and connected to the supporting ring.

[0023] As an improved embodiment, the inner cover includes a laterally extending inner cover outer edge and a longitudinally extending inner cover lower edge, the inner cover outer edge forms the stop ring, and the peripheral side surface of the inner cover lower edge is provided with an inner cover recess opposite to the annular recess at the pot mouth; wherein the sealing member includes a double layer that can be at least partially separated, and when the sealing member is squeezed, the double layer protrudes toward the inner cover recess and the annular recess, respectively.

[0024] As an improved embodiment, the operating mechanism includes a rotating part with an arc-shaped tooth segment, a connecting rod with a bar-shaped tooth segment, and a pull ring driven by the connecting rod, wedge blocks are provided at both ends of the connecting rod, the lower end of the pull ring is connected to the bottom end of the seal, and the upper end of the pull ring can be slidably hung on the wedge block.

[0025] As an improved embodiment, the rotating component includes a toothless segment, which allows the rotating component to idle at a preset angle after the arc-shaped tooth segment is disengaged from the bar-shaped tooth segment.

[0026] The cooking utensil provided in the present application achieves locking and unlocking of the pot lid and the pot body through the elastic deformation of the seal. Compared with the traditional clamp-type or screw-type locking methods, it has the advantages of low cost, easy use, and good sealing after locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is a three-dimensional diagram of an embodiment of the cooking utensil of the present application.

[0029] Figure 2 This is a combined cross-sectional view of an embodiment of the cooking utensil of the present application, wherein the pot lid is in an unlocked state.

[0030] Figure 3 This is an exploded cross-sectional view of an embodiment of the cooking appliance of the present application, wherein the pot lid is in an unlocked state.

[0031] Figure 4 This is a combined cross-sectional view of an embodiment of the cooking utensil of the present application, wherein the pot cover is in a locked state.

[0032] Figure 5 This is a three-dimensional exploded view of an embodiment of the cooking utensil of the present application.

[0033] Figure 6 This is a three-dimensional diagram of a knob in an embodiment of the cooking utensil of the present application.

[0034] Figure 7 This is a cross-sectional view of a knob in one embodiment of the cooking utensil of the present application.

[0035] Figure 8 This is a three-dimensional view of a cover in one embodiment of the cooking utensil of the present application.

[0036] Fig. 9 This is a three-dimensional diagram of the second embodiment of the cooking utensil of the present application.

[0037] Fig.10 for Fig. 9 A perspective view of the components shown with the outer cover removed.

[0038] Fig.11 for Fig. 9 A cross-sectional view of the components shown.

[0039] Fig.12 for Fig. 9 A perspective view of the components shown with the outer cover and connecting rod removed.

[0040] Fig.13 This is a three-dimensional diagram of the sealing member and the pull ring in the second embodiment of the cooking utensil of the present application.

[0041] Fig.14 for Fig.13A cross-sectional view of the components shown.

[0042] Fig.15 This is a three-dimensional diagram of some components of the pot cover in the second embodiment of the cooking utensil of the present application.

[0043] Description of reference numerals: 1, pot body; 11, convex ring; 12, annular recess; 2, pot cover; 21, outer cover; 211, outer cover side edge; 212, outer cover outer edge; 22, inner cover; 221, support ring; 222, pull ring; 223, inner cover recess; 3, sealing member; 31, annular convex portion; 4, operating mechanism; 41, stud; 411, protrusion; 42, knob; 420, support platform; 421 , slide groove; 422, exhaust actuating part; 423, stopper; 43, nut member; 5, cover; 51, arc-shaped groove; 6, check valve; 61, indicator; 62, check valve body; 7, pressure-limiting valve; 71, valve stem; 72, sealing valve body; 8, connecting rod; 81, wedge block; 82, bar-shaped tooth segment; 9, gear column; 91, arc-shaped tooth segment; 92, toothless segment; 93, toggle plate; 94, stopper plate. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0045] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0046] See also Figures 1 to 15 As shown, the present application provides a cooking utensil. The cooking utensil comprises a pot body 1 and a pot cover 2 covering the pot body 1. The pot cover 2 is covered on the pot mouth of the pot body 1 and can be locked with the pot body 1 to form a cooking cavity. In some embodiments, the cooking utensil is a pressure cooker, and the pot cover 2 is locked and sealed with the pot body 1, so that the cooking cavity is a closed cavity, which can form a pressure environment when the steam in the cooking cavity increases, making it easier to cook food and improving cooking efficiency. Of course, in some other embodiments, the cooking utensil can also be a micro-pressure cooking utensil, a rice cooker, a stew pot, etc.

[0047] The pot body 1 is provided with a clamping part for cooperating with the pot cover 2. The pot body 1 is usually a rotating body, a vessel with a bottom wall and a surrounding side wall, and its top is an opening. The pot cover 2 is arranged at the opening. The clamping part is arranged close to the opening, and the clamping part can be a convex part or a concave part. Several structural descriptions of the specific structure of the clamping part will be given in the following embodiments. It can be understood that in some embodiments, the pot body 1 can specifically include components such as an inner pot, an inner shell, and an outer shell.

[0048] See also Figures 2 to 5 , Figures 10 to 13 As shown, the pot cover 2 includes a seal 3 and an operating mechanism 4. The seal 3 is used to form a sealing fit with the pot body 1, and the seal 3 is configured to be elastically deformable to switch between a locked state and an unlocked state. In some embodiments, the seal 3 is a silicone member; in other embodiments, the silicone member may be further coated with a metal shrapnel to enhance the elastic deformation and reset ability of the seal 3. The operating mechanism 4 can be associated with the seal 3 in a power-transmitting manner to manipulate the elastic deformation of the seal 3. Among them, the power-transmitting association includes direct connection and indirect connection through other components. In other words, the power can be transmitted to the seal 3 by operating the operating mechanism 4. During the power transmission process, the direction of the force and the movement mode of the related components can be changed, such as the conversion of rotational motion into linear motion, the conversion of horizontal force into vertical force, etc. Moreover, the operating mechanism 4 can be a manually operated mechanism or an electrically operated mechanism.

[0049] The seal 3 can be manipulated by the manipulation mechanism 4 to form a holding portion, and the holding portion cooperates with the clamping portion to lock the pot cover 2 on the pot body 1 to form the locked state; the seal 3 can be manipulated by the manipulation mechanism 4 to eliminate the holding portion, so that the pot cover 2 and the pot body 1 are unlocked to form the unlocked state. That is, in the locked state, the pot cover 2 and the pot body 1 are locked by the holding portion formed by the seal 3 and the pot body 1, and in the unlocked state, the pot cover 2 is unlocked by eliminating the holding portion on the seal 3.

[0050] The technical solution of the present application is described in detail below with reference to several specific embodiments.

[0051] Embodiment 1

[0052] Figures 1 to 8 Shown is a diagram of the first embodiment of the cooking utensil of the present application.

[0053] See also Figures 2 to 5As shown, the pot mouth of the pot body 1 is provided with an annular convex ring 11 protruding inward, and an annular recess 12 is formed below the annular convex ring 11. In this embodiment, the annular recess 12 formed at the pot mouth of the pot body 1 is a clamping part, which is used to clamp and cooperate with the sealing member 3 on the pot cover 2. The clamping part constructed on the sealing member 3 is an annular convex part 31 that is elastically deformed by the compression of the sealing member 3 and protrudes and fills the annular recess 12.

[0054] The pot cover 2 includes a support ring 221 contacting the bottom end of the seal 3 and a stop ring contacting the top end of the seal 3. The operating mechanism 4 drives the support ring 221 and the stop ring to approach each other to squeeze the seal 3 to deform and form the clamping portion.

[0055] In this embodiment, the pot cover 2 includes an inner cover 22 and an outer cover 21, wherein the inner cover 22 has an inner cover lower edge protruding into the pot body 1, and the outer cover 21 has an outer cover outer edge 212 supported on the pot mouth edge of the pot body 1; wherein the inner cover lower edge forms the support ring 221, and the outer cover outer edge 212 forms the stop ring. The sealing member 3 is sandwiched between the outer cover outer edge 212 and the inner cover lower edge, so as to be squeezed and released when the inner cover 22 and the outer cover 21 move relative to each other, thereby forming the clamping portion and eliminating the clamping portion.

[0056] See also Figure 2 and Figure 4 As shown, in this embodiment, the inner cover 22 and the outer cover 21 are metal sheets, the outer edge 212 of the outer cover is a double-layer laminate formed by bending the outer cover 21 in the horizontal direction, the inner side end of the outer cover outer edge 212 has an outer cover side edge 211 extending downward, and the outer cover side edge 211 is a vertically extending annular member, and the upper end of the seal 3 is sleeved on the outside of the outer cover side edge 211. The inner cover lower edge of the inner cover 22 includes a J-shaped hook portion bent upward, and the lower end of the seal 3 is inserted into the J-shaped hook portion. The above-mentioned connection method between the upper and lower ends of the seal 3 and the outer cover 21 and the inner cover 22 allows the seal 3 to be firmly assembled between the outer cover 21 and the inner cover 22, preventing the seal 3 from detaching from the outer cover 21 or the inner cover 22. The thickness at the upper and lower ends of the seal 3 is relatively large, while the thickness at the middle portion between the upper and lower ends is relatively thin, and the middle portion is set to a slightly convex shape; such a structural setting of the seal 3 can ensure that the middle portion of the seal 3 is preferentially deformed to form the annular convex portion 31 when it is squeezed. It should be noted that the annular convex portion 31 and the annular concave portion 12 refer to the annular shape around a circle, and the cross-sectional shape thereof can be various. In addition, in other embodiments, the clamping portion on the pot body 1 can also be set to a convex portion, and the clamping portion formed by the deformation of the seal 3 can be a concave portion that engages with the convex portion.

[0057] Please refer again Figures 2 to 5 As shown, the operating mechanism 4 includes a rotating component and a lifting component driven by the rotating component, and the lifting component is associated with the support ring 221 so as to lift the support ring 221 upward under the drive of the rotating component. Specifically, the lifting component includes a stud 41 fixedly connected to the inner cover 22, and the stud 41 is exposed above the outer cover 21 through an opening on the outer cover 21, and the rotating component includes a knob 42 connected to the stud 41 above the outer cover 21. In this embodiment, the lower end of the stud 41 is fixed to the inner cover 22 by a nut 43. As shown in FIG. Figure 4 and Figure 5 A nut member 43 structure is shown in , which can be a conventional nut, such as a hexagonal nut, a hand-tightened nut, etc.; Figure 2 and Figure 3 The nut member 43 shown in the figure can be a cover member with a threaded hole in the center. The nut member 43 has a cover inside. While fixing the stud 41 to the inner cover 22, it can also cover the stop valve 6 and the pressure limiting valve 7 provided on the pot cover 2 to protect the stop valve 6 and the pressure limiting valve 7, and prevent food or other substances from directly contacting the stop valve 6 and the pressure limiting valve 7 and affecting their performance. The specific arrangement of the stop valve 6 and the pressure limiting valve 7 will be described in detail later.

[0058] See also Figures 5 to 7 As shown, a sliding groove 421 and a protrusion 411 that cooperate with each other are provided between the knob 42 and the stud 41, and at least one of the sliding groove 421 and the protrusion 411 is configured as a spiral line segment. The rotational movement of the knob 42 drives the stud 41 to drive the inner cover 22 to move upward or downward through the cooperation of the sliding groove 421 and the protrusion 411. It should be noted that the stud 41 refers to a column having a protrusion 411 or a sliding groove 421 in the shape of a spiral line segment, or a column having a sliding structure that cooperates with the protrusion 411 or the sliding groove 421 in the shape of a spiral line segment, but it does not necessarily mean that the spiral line segment must be provided on the stud 41. In this embodiment, the protrusion 411 is a protrusion in the shape of a thread segment and is provided on the stud 41, and the sliding groove 421 is a sliding groove in the shape of a thread segment and is provided on the knob 42. In other embodiments, the slide groove 421 may be in the shape of a thread segment, and the protrusion 411 may be a boss, a bump, a point, etc.; in other embodiments, the protrusion 411 may be in the shape of a thread segment, and the slide groove 421 may be a short groove such as a dot.

[0059] See also Figure 6 and Figure 7As shown, the upper end of the chute 421 is connected to a support platform 420, and the protrusion 411 is supported on the support platform 420 after being separated from the chute 421, and can slide a certain distance on the support platform 420. In this embodiment, the interior of the knob 42 is a stepped sleeve hole, and the stepped table between the stepped sleeve holes forms the support platform 420. The protrusion 411 slides on the support platform 420 to form an idle stroke. In this embodiment, the so-called idle stroke refers to the stroke in which the knob 42 rotates but the stud 41 does not move. Since the protrusion 411 is separated from the chute 421 and supported on the support platform 420, the support platform 420 is a horizontal plane, and the relative sliding between the support platform 420 and the protrusion 411 will not cause the stud 41 to move up and down. Therefore, the idle stroke will not change the locking state, and the idle stroke is used in this embodiment to realize the linkage control of the pressure limiting valve 7 and the check valve 6.

[0060] like Figures 2 to 5 As shown, the pot cover 2 includes a pressure limiting valve 7, and the knob 42 has an exhaust triggering portion 422 for triggering the pressure limiting valve 7 to exhaust. The pot cover 2 includes a check valve 6 that can float up and down, and the knob 42 has a stopper 423 that is blocked by the check valve 6 in a floating state. Wherein, the rotating component has an idle stroke while maintaining the locked state unchanged. During the idle stroke of the rotating component, the exhaust triggering portion 422 passes through the pressure limiting valve 7, and the stopper 423 passes through the check valve 6. Specifically, the pot cover 2 includes a surface cover 5 installed on the outer cover 21, and the pressure limiting valve 7 includes a valve stem 71 disposed on the surface cover 5 and a sealing valve body 72 disposed on the inner cover 22. The knob 42 is located above the surface cover 5, and the exhaust triggering portion 422 exhausts air by pushing the valve stem 71 downward to push open the sealing valve body 72. The distance between the valve stem 71 and the sealing valve body 72 should be set to ensure that when the inner cover 22 moves toward the outer cover 21 to lock, the valve stem 71 and the sealing valve body 72 will not contact. The sealing valve body 72 is a sealing block with a cutout, which forms a seal when not pushed, and the cutout is opened when pushed.

[0061] In the present embodiment, the outer cover 21 is provided with a recessed portion, the surface cover 5 is provided at the recessed portion, and the surface cover 5 is relatively fixed to the outer cover 21. The surface cover 5 is provided with an arc-shaped groove 51 for limiting the rotation angle of the knob 42, and the lower surface of the knob 42 is provided with the exhaust trigger portion 422, which is a convex piece protruding into the arc-shaped groove 51. The valve stem 71 is provided below the arc-shaped groove 51, and when the exhaust trigger portion 422 slides in the arc-shaped groove 51, it can trigger the valve stem 71 to move downward to push open the sealing valve body 72 to achieve exhaust. The stopper 423 is a stopper provided on the knob 42. In the present embodiment, the stopper 423 is provided on an independent component, and the independent component is mounted and fixed on the knob 42; in other embodiments, the stopper 423 can be provided as an integral part with the knob 42. Figure 4 As shown, when the stop valve 6 is in the floating position, that is, the pressure in the pot body 1 is relatively high and the lid cannot be opened, the rotation of the knob 42 in the unlocking direction will be blocked by the stop valve 6 to prevent injury caused by opening the lid under pressure. In this embodiment, the stop valve 6 includes an indicator 61 that can float up and down on the surface cover 5, and a stop valve body 62 that can float up and down on the inner cover 22. When the stop valve body 62 floats up, it pushes the indicator 61 to float up to indicate the pressure state. The floating of the indicator 61 can play an intuitive indicating role to remind the user of the current pressure status in the cooking utensil. The indicator 61 can use a brightly colored component, such as red, to better play a prompting role.

[0062] When the unlocked state is changed to the locked state, since the check valve 6 and the pressure-limiting valve 7 are both in the low position, the knob 42 passes over the check valve 6 and the pressure-limiting valve 7 through the above-mentioned idling stroke without obstruction after the locking is completed; and then when the knob 42 is rotated in the reverse direction from the locked state to the unlocked state, the exhaust triggering portion 422 of the knob 42 is first rotated to trigger the pressure-limiting valve 7 to exhaust. When the exhaust is not completed, the knob 42 is blocked by the floating check valve 6 and can only be rotated to the exhaust position. After the exhaust is completed, the check valve 6 falls, and the knob 42 can continue to rotate, and then the protrusion 411 on the stud 41 can re-enter the slide groove 421 to control the stud 41 to move downward, so that the seal 3 is restored to release the lock, and the pot cover 2 can be opened.

[0063] Embodiment 2

[0064] Figures 9 to 15 Shown is a diagram of the second embodiment of the cooking utensil of the present application.

[0065] In this embodiment, the pot cover 2 includes an outer cover and an inner cover 22. The operating mechanism 4 includes a pull ring 222 that passes through the inner cover 22 and is connected to the support ring 221. The inner cover 22 includes a laterally extending inner cover outer edge and a longitudinally extending inner cover lower edge, the inner cover outer edge forms the stop ring, and the circumferential side surface of the inner cover lower edge is provided with an inner cover recess 223 that is opposite to the annular recess 12 at the pot mouth. The inner cover outer edge is a double-layer laminate formed by the inner cover 22 being bent back in the horizontal direction, and the inner cover lower edge extends downward from the inner cover outer edge. Wherein, the sealing member 3 includes a double layer that can be separated at least partially, and when the sealing member 3 is squeezed, the double layer protrudes toward the inner cover recess 223 and the annular recess 12 respectively.

[0066] See also Figure 12 to Figure 14 As shown, the pull ring 222 is annular and has two lifting ears. The seal 3 includes an inner layer located inside the pull ring 222 and an outer layer located outside the pull ring 222. The pull ring 222 is sandwiched between the inner and outer layers. The lower end of the pull ring 222 is connected to the support ring 221. The support ring 221 fixes the lower ends of the inner and outer layers of the seal 3 together. The inner and outer layers of the seal 3 are separable at least in the middle. When the pull ring 222 is pulled upward by the two lifting ears, the inner and outer layers of the seal 3 bulge to both sides to form an annular convex portion 31 with a roughly pear-shaped cross-section. The annular convex portion 31 is buckled with the inner cover 22 and the pot body 1 respectively to achieve the locking of the pot cover 2 and the pot body 1.

[0067] In this embodiment, the operating mechanism 4 includes a rotating component with an arc-shaped tooth segment 91, a connecting rod 8 with a bar-shaped tooth segment 82, and a pull ring 222 driven by the connecting rod 8. Wedge blocks 81 are arranged at both ends of the connecting rod 8. The lower end of the pull ring 222 is connected to the bottom end of the sealing member 3, and the upper end of the pull ring 222 can be slidably hung on the wedge blocks 81. The rotating component includes a knob 42 and a gear column 9 connected to the knob 42. The knob 42 is exposed above the outer cover for user operation. The gear column 9 and the connecting rod 8 are arranged between the outer cover and the inner cover 22. The two wedge blocks 81 at both ends of the connecting rod 8 have the same inclination direction, that is, when the connecting rod 8 moves to one end, the two wedge blocks 81 drive the two lifting ears on the pull ring 222 to move up or down synchronously.

[0068] When the knob 42 is rotated, the arc-shaped tooth segment 91 on the knob 42 engages with the bar-shaped tooth segment 82 on the connecting rod 8, and the knob 42 drives the connecting rod 8 to translate along its own extension direction, and the wedge block 81 on the connecting rod 8 drives the pull ring 222 to move upward to squeeze the seal 3 to deform and lock.

[0069] Furthermore, the gear column 9 includes a toothless segment 92, and the toothless segment 92 allows the knob 42 to idle at a preset angle after the arc-shaped tooth segment 91 is disengaged from the bar-shaped tooth segment 82. The so-called idle rotation refers to the stroke in which the knob 42 rotates but the connecting rod 8 does not move. Since the arc-shaped tooth segment 91 is disengaged from the bar-shaped tooth segment 82, the rotation of the knob 42 will not cause the connecting rod 8 to move left and right, that is, it will not cause the pull ring 222 to move up and down. Therefore, the idle rotation stroke will not change the locking state. Similar to the first embodiment, a pressure limiting valve 7 and a check valve 6 are provided on the inner cover 22 in this embodiment, and this embodiment also uses the idle rotation stroke to realize the linkage control of the pressure limiting valve 7 and the check valve 6. In this embodiment, the gear column 9 includes an exhaust trigger portion and a stop portion. In this embodiment, the exhaust trigger portion is a toggle plate 93, and the stop portion is a stop plate 94.

[0070] Similar to the action process of Example 1, when the unlocked state is operated to the locked state, since the check valve 6 and the pressure-limiting valve 7 are both in the low position, the knob 42 and the gear column 9 driven by it pass through the above-mentioned idling stroke without obstruction after completing the locking; and then when the knob 42 and the gear column 9 driven by it are rotated in the opposite direction to operate from the locked state to the unlocked state, the toggle piece 93 on the gear column 9 is first rotated to trigger the pressure-limiting valve 7 to exhaust. When the exhaust is not completed, the stop piece 94 on the gear column 9 is blocked by the floating check valve 6 and can only rotate to the exhaust position. After the exhaust is completed, the check valve 6 falls, and the knob 42 and the gear column 9 can continue to rotate, and then the arc-shaped tooth segment 91 and the bar-shaped tooth segment 82 are re-engaged to drive the connecting rod 8 to move, so that the sealing member 3 is restored and the pull ring 222 moves down, the lock is released, and the pot cover 2 can be opened.

[0071] Through the above description of multiple specific embodiments and extended embodiments, it can be seen that the cooking utensil provided by the present application realizes locking and unlocking of the pot cover 2 and the pot body 1 through the elastic deformation of the seal 3. The seal 3 serves as both a locking component and a sealing component, which simplifies the structure of the cooking utensil and improves the sealing performance after locking. Compared with the traditional clamp-type or screw-on locking method, the present application scheme has the advantages of low cost, easy use, and good sealing after locking.

[0072] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A cooking utensil, comprising a pot body and a pot cover arranged on the pot body, characterized in that: The pot cover comprises: a sealing member for forming a sealing fit with the pot body, wherein the sealing member is configured to be elastically deformable to switch between a locked state and an unlocked state; and an operating mechanism, which is dynamically connected to the sealing member and is used to operate the elastic deformation of the sealing member; Wherein, the pot body is provided with a clamping portion for cooperating with the pot cover; Among them, the sealing member can be manipulated by the operating mechanism to construct a holding portion, and the holding portion cooperates with the clamping portion to lock the pot cover on the pot body to form the locked state; the sealing member can be manipulated by the operating mechanism to eliminate the holding portion, so that the pot cover and the pot body are unlocked to form the unlocked state.

2. The cooking device according to claim 1, characterized in that: The pot cover comprises a support ring in contact with the bottom end of the seal and a stop ring in contact with the top end of the seal, and the operating mechanism drives the support ring and the stop ring to approach each other to squeeze the seal to deform and form the clamping portion.

3. The cooking device according to claim 2, characterized in that: The clamping portion is an annular recessed portion formed at the pot mouth of the pot body, and the holding portion is an annular convex portion protruding and filling the annular recessed portion.

4. The cooking device according to claim 2, characterized in that: The operating mechanism includes a rotating component and a lifting component driven by the rotating component, wherein the lifting component is associated with the supporting ring to lift the supporting ring upward under the driving of the rotating component.

5. The cooking device according to claim 4, characterized in that: The pot cover includes a pressure-limiting valve, and the rotating component has an exhaust triggering portion for triggering the pressure-limiting valve to exhaust air, and / or the pot cover includes a check valve that can float up and down, and the rotating component has a stop portion blocked by the check valve in a floating state; wherein, the rotating component has an idling stroke while keeping the locked state unchanged, and in the idling stroke of the rotating component, the exhaust triggering portion passes through the pressure-limiting valve, and the stop portion passes through the check valve.

6. The cooking device according to claim 5, characterized in that: The pot cover comprises an inner cover and an outer cover, wherein the inner cover has an inner cover lower edge protruding into the pot body, and the outer cover has an outer cover outer edge supported on the edge of the pot mouth of the pot body; wherein the inner cover lower edge forms the support ring, and the outer cover outer edge forms the stop ring.

7. The cooking device according to claim 6, characterized in that: The lifting component includes a stud fixedly connected to the inner cover, and the stud is exposed above the outer cover through an opening on the outer cover; the rotating component includes a knob connected to the stud above the outer cover; There are matching grooves and protrusions between the knob and the stud, at least one of the grooves and protrusions is configured as a spiral segment, and the rotational movement of the knob drives the stud to drive the inner cover to move upward or downward through the matching of the grooves and protrusions.

8. The cooking device according to claim 7, characterized in that: The upper end portion of the slide groove is connected to a support platform, and the protrusion is supported on the support platform after being separated from the slide groove, and the protrusion slides on the support platform to form the idling stroke.

9. The cooking device according to claim 7, characterized in that: The pot cover includes a surface cover installed on the outer cover, the pressure limiting valve includes a valve stem arranged on the surface cover and a sealing valve body arranged on the inner cover, the knob is located above the surface cover, and the exhaust trigger part realizes exhaust by pushing the valve stem downward to open the sealing valve body.

10. The cooking device according to claim 7, characterized in that: The pot cover includes a surface cover installed on the outer cover, the non-opening valve includes an indicator member disposed on the surface cover and capable of floating up and down, and a non-opening valve body disposed on the inner cover and capable of floating up and down, and when the non-opening valve body floats up, it pushes the indicator member to float up to indicate an upward pressure state.

11. The cooking device according to claim 9 or 10, characterized in that: The surface cover is provided with an arc-shaped groove for limiting the rotation angle of the knob.

12. The cooking device according to claim 3, characterized in that: The pot cover comprises an inner cover, and the operating mechanism comprises a pull ring passing through the inner cover and connected to the supporting ring.

13. The cooking device according to claim 12, characterized in that: The inner cover comprises a laterally extending inner cover outer edge and a longitudinally extending inner cover side edge, the inner cover outer edge forms the stop ring, and the circumferential side surface of the inner cover side edge is provided with an inner cover recess opposite to the annular recess at the pot mouth; wherein the sealing member comprises a double layer which is at least partially separable, and when the sealing member is squeezed, the double layers protrude toward the inner cover recess and the annular recess respectively.

14. The cooking device according to any one of claims 1 to 5, characterized in that: The operating mechanism includes a rotating component with an arc-shaped tooth segment, a connecting rod with a bar-shaped tooth segment, and a pull ring driven by the connecting rod. Wedge blocks are arranged at both ends of the connecting rod. The lower end of the pull ring is connected to the bottom end of the seal, and the upper end of the pull ring can be slidably hung on the wedge block.

15. The cooking appliance according to claim 14, characterized in that The rotating component includes a toothless segment, which allows the rotating component to idle at a preset angle after the arc-shaped tooth segment is disengaged from the bar-shaped tooth segment.

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