Cover body assembly and cooking utensil with same

Abstract

The utility model provides a cover body assembly and a cooking utensil with the cover body assembly, and the cover body assembly comprises a cover body; the exhaust valve comprises an exhaust pipe penetrating through the cover body and a valve body arranged above the exhaust pipe, and the valve body has a pressure state for blocking an exhaust channel of the exhaust pipe and an exhaust state for avoiding the exhaust channel; the rotary driving part is arranged on the cover body and can drive the valve body to be switched between a pressure state and an exhaust state; the sliding part is movably arranged on the cover body in the preset linear direction, the rotary driving part is in driving fit with the sliding part so that the rotary driving part and the sliding part can move synchronously, and a first positioning part and a second positioning part are arranged on the sliding part at an interval; and the positioning piece is movably arranged on the cover body, and the positioning piece can be in positioning fit with the first positioning part and the second positioning part. According to the technical scheme, the problem that in the related technology, a user possibly touches the driving piece by mistake, so that the pressure limiting valve structure breaks away from the correct working state can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of small household appliances, and in particular to a cover body assembly and a cooking appliance having the same. Background Art

[0002] In the related art, a pressure cooking appliance generally is provided with a pressure limiting valve structure, and the pressure limiting valve structure at least has a pressure state in which the cooking cavity is isolated from the outside and an exhaust state in which the cooking cavity is communicated with the outside, so as to realize the functions of performing pressure cooking in a sealed cooking cavity and reducing the pressure in the cooking cavity to quickly open the cover.

[0003] Since the pressure limiting valve structure has at least two working states, generally, a driving member for switching the state of the pressure limiting valve structure is provided on the cover body assembly, and a user can drive the pressure limiting valve structure to switch the working state by operating the driving member.

[0004] However, during the cooking process, it is possible that the user accidentally touches the driving member, thereby driving the pressure limiting valve structure out of the correct working state, affecting the cooking effect, and even causing a safety accident. Summary of the Utility Model

[0005] The main object of the utility model is to provide a cover body assembly and a cooking appliance having the same, so as to solve the problem in the related art that the user may accidentally touch the driving member, causing the pressure limiting valve structure to deviate from the correct working state.

[0006] To achieve the above object, according to one aspect of the utility model, a cover body assembly is provided, including: a cover body; an exhaust valve, including an exhaust pipe penetrating through the cover body and a valve body disposed above the exhaust pipe, the valve body having a pressure state of blocking the exhaust passage of the exhaust pipe and an exhaust state of avoiding the exhaust passage; a rotary driving member disposed on the cover body and capable of driving the valve body to switch between the pressure state and the exhaust state; a sliding member movably disposed on the cover body along a preset linear direction, the rotary driving member being in driving cooperation with the sliding member so that the rotary driving member and the sliding member move synchronously, when the rotary driving member rotates, driving the sliding member to move along the preset linear direction, and a first positioning portion and a second positioning portion are spaced apart on the sliding member; a positioning member movably disposed on the cover body, the positioning member being capable of positioning and cooperating with the first positioning portion to keep the valve body in the pressure state and positioning and cooperating with the second positioning portion to keep the valve body in the exhaust state.

[0007] Applying the technical solution of the present utility model, the cover assembly includes a rotary driving member, a sliding member and a positioning member. Among them, the rotary driving member drives the valve body to switch between the avoidance state and the exhaust state. The sliding member moves synchronously with the rotary driving member, that is, when the rotary driving member rotates, it drives the sliding member to move, and when the rotary driving member is stationary, the sliding member is also stationary. Correspondingly, when the sliding member moves, it also drives the rotary driving member to rotate, and when the sliding member is stationary, the rotary driving member also remains stationary. The sliding member is provided with a first positioning portion and a second positioning portion, and the positioning member can be in positioning cooperation with the first positioning portion or in positioning cooperation with the second positioning portion, so that when the rotary driving member drives the valve body to switch to the corresponding working state, the positioning member can be in positioning cooperation with the sliding member to limit the movement of the sliding member, that is, limit the rotation of the rotary driving member, and prevent the user from accidentally touching the rotary driving member and causing the rotary driving member to rotate and then drive the valve body to deviate from the selected working state. In addition, due to the setting of the sliding member, the setting position of the positioning member on the cover can be more flexible. Therefore, the technical solution of the present application can effectively solve the problem in the related art that the user may accidentally touch the driving member and cause the pressure limiting valve structure to deviate from the correct working state.

[0008] Further, a first transmission tooth is provided on the rotary driving member, and a second transmission tooth meshing with the first transmission tooth is provided on the sliding member. Through the meshing between the first transmission tooth and the second transmission tooth, the corresponding relationship between the states of the rotary driving member and the sliding member can be effectively ensured, and the relative position relationship between the two is prevented from changing due to slipping or the like.

[0009] Further, the rotary driving member includes a rotating ring sleeved on the outer periphery of the valve body and an arc-shaped plate provided below the rotating ring, and the first transmission tooth is provided on the arc-shaped plate. By providing the first transmission tooth on the arc-shaped plate, the first transmission tooth only occupies a part of the space below the rotating ring, and other structures can be arranged in the other space below the rotating ring.

[0010] Further, an installation opening is provided on the cover, and an installation cylinder is provided at the installation opening. The rotary driving member is an annular structure arranged in the installation cylinder, and a matching opening for the second transmission tooth to extend into and cooperate with the first transmission tooth is provided on the installation cylinder. The setting of the installation cylinder can be used to install the rotary driving member and guide the rotation of the rotary driving member. The provision of the matching opening on the installation cylinder facilitates the cooperation between the rotary driving member and the sliding member.

[0011] Further, the sliding member includes a sliding rod and a first abutting member. The first positioning portion and the second positioning portion are provided on the sliding rod. When the sliding rod moves to a position where the positioning member is located between the first positioning portion and the second positioning portion, the first abutting member pushes the sliding rod to move so that the first positioning portion is in positioning cooperation with the positioning member or the second positioning portion is in positioning cooperation with the positioning member. Since the sliding member is a moving member that moves along a preset straight line direction, the first abutting member can also be arranged along the preset straight line direction, which can avoid the first abutting member from bending or deforming in a direction other than the preset straight line direction, and can avoid the situation that the first abutting member affects the user's operation feel due to jamming or the first abutting member fails.

[0012] Further, the sliding rod includes a positioning cooperation rod section and an installation rod section. The first positioning portion and the second positioning portion are provided on the positioning cooperation rod section, and the first abutting member is sleeved on the installation rod section. The installation rod section can be used to install the first abutting member and guide the deformation of the first abutting member, so that the first abutting member can only deform along the preset straight line direction, avoiding the situation of jamming or sticking of the first abutting member.

[0013] Further, a first guiding member extending along the preset straight line direction is provided on the cover body, and a second guiding member guidingly cooperating with the first guiding member is provided on the sliding rod. Among them, one of the first guiding member and the second guiding member is a guiding chute, and the other of the first guiding member and the second guiding member is a guiding slider. Through the cooperation of the guiding slider and the guiding chute, it is realized that the sliding member can only move in the preset straight line direction, which has the advantages of simple structure and reliable guiding.

[0014] Further, the positioning member includes a top rod and a second abutting member. Both the first positioning portion and the second positioning portion are positioning groove structures, and the second abutting member applies an abutting force towards the sliding member to the top rod so that the top rod is inserted into the positioning groove structure. The positioning of the sliding member is realized by the cooperation of the top rod and the second abutting member, which has the advantage of simple structure.

[0015] Further, the valve body includes an inner valve and an outer valve arranged on the outer periphery of the inner valve. When the rotary driving member rotates, it drives the outer valve to move in the vertical direction, so that the outer valve switches between the positions of pressing down the inner valve, separating from the inner valve, and lifting the inner valve. When the valve body is in the exhaust state, the outer valve lifts the inner valve to avoid the exhaust passage. The pressure state includes a first pressure state and a second pressure state. When the valve body is in the first pressure state, the outer valve separates from the inner valve so that the inner valve presses on the upper side of the exhaust pipe and blocks the exhaust passage. When the valve body is in the second pressure state, the outer valve presses down the inner valve so that the outer valve and the inner valve jointly press on the upper side of the exhaust pipe and block the exhaust passage. By setting the double-valve structure, the valve body can be switched between the high-pressure state, the medium-pressure state, and the micro-pressure state to realize multi-stage pressure regulation.

[0016] According to another aspect of the present utility model, there is provided a cooking appliance, including a lid assembly, wherein the lid assembly is the above-mentioned lid assembly. The above-mentioned lid assembly can effectively solve the problem in the related art that the user may accidentally touch the driving member, causing the pressure limiting valve structure to deviate from the correct working state. The cooking appliance with the above-mentioned lid assembly also has the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The schematic drawings forming a part of this application are used to provide a further understanding of the present utility model. The illustrative embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0018] Figure 1 Shows a perspective structural schematic diagram of an embodiment of the lid assembly according to the present utility model;

[0019] Figure 2 Shows Figure 1 An enlarged view of part A of the lid assembly;

[0020] Figure 3 Shows Figure 1 An enlarged view of a part of the lid assembly, wherein the positioning member is in positioning cooperation with the third positioning groove;

[0021] Figure 4 Shows Figure 1 An enlarged view of a part of the lid assembly, wherein the positioning member is in positioning cooperation with the first positioning groove;

[0022] Figure 5 Shows Figure 1 An enlarged view of a part of the lid assembly, wherein the positioning member is in positioning cooperation with the second positioning groove;

[0023] Figure 6 Shows Figure 1 An enlarged view of a part of the lid assembly, wherein the positioning member is located between the first positioning groove and the third positioning groove;

[0024] Figure 7 Shows Figure 1 An enlarged view of a part of the lid assembly,

[0025] Figure 8 Shows Figure 1 A perspective structural schematic diagram of the rotary driving member, the sliding member and the positioning member of the lid assembly;

[0026] Figure 9 Shows Figure 1 A perspective structural schematic diagram of the rotary driving member of the lid assembly;

[0027] Figure 10 ShowsFigure 1 Schematic three-dimensional structure diagram of the sliding rod of the cover assembly;

[0028] Figure 11 Shows Figure 1 Schematic cross-sectional view of the exhaust valve, rotary drive member and valve seat of the cover assembly;

[0029] Figure 12 Shows Figure 1 Schematic three-dimensional structure diagram of the valve body of the cover assembly;

[0030] Figure 13 Schematic three-dimensional structure diagram of an embodiment of a cooking appliance according to the present utility model.

[0031] Wherein, the above-mentioned drawings include the following reference numerals:

[0032] 10. Cover body; 11. Installation cylinder; 111. Fitting port; 12. First guiding member; 13. Support bump;

[0033] 20. Exhaust valve; 21. Exhaust pipe; 211. Exhaust passage; 22. Valve body; 221. Inner valve; 222. Outer valve; 223. Step structure;

[0034] 30. Rotary drive member; 31. First transmission gear; 32. Rotating ring; 33. Arc-shaped plate; 34. Snap; 35. Operating handle;

[0035] 40. Sliding member; 401. First positioning portion; 4011. First positioning groove; 4012. Second positioning groove; 402. Second positioning portion; 4021. Third positioning groove; 41. Second transmission gear; 42. Sliding rod; 421. Positioning and fitting rod section; 422. Installation rod section; 43. First abutting member;

[0036] 50. Positioning member; 51. Thrust rod; 52. Second abutting member;

[0037] 60. Pot body assembly;

[0038] 70. Valve seat;

[0039] L. Preset linear direction. Detailed implementation manners

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. The description of at least one exemplary embodiment below is actually only illustrative and in no way restricts the present utility model and its application or use. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0041] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0042] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0043] As Figures 1 to 6As shown in the figure, the present application provides a cover assembly. The embodiments of the cover assembly of the present application include: a cover body 10, an exhaust valve 20, a rotary drive member 30, a sliding member 40, and a positioning member 50. Among them, the exhaust valve 20 includes an exhaust pipe 21 passing through the cover body 10 and a valve body 22 disposed above the exhaust pipe 21. The valve body 22 has a pressure state of blocking the exhaust passage 211 of the exhaust pipe 21 and an exhaust state of avoiding the exhaust passage 211; the rotary drive member 30 is disposed on the cover body 10 and can drive the valve body 22 to switch between the pressure state and the exhaust state; the sliding member 40 is movably disposed on the cover body 10 along a preset straight line direction L. The rotary drive member 30 is drivingly engaged with the sliding member 40 so that the rotary drive member 30 and the sliding member 40 move synchronously. When the rotary drive member 30 rotates, it drives the sliding member 40 to move along the preset straight line direction L. The first positioning portion 401 and the second positioning portion 402 are spaced apart on the sliding member 40; the positioning member 50 is movably disposed on the cover body 10, and the positioning member 50 can be in positioning cooperation with the first positioning portion 401 to keep the valve body 22 in the pressure state and in positioning cooperation with the second positioning portion 402 to keep the valve body 22 in the exhaust state.

[0044] Applying the technical solution of this embodiment, the cover assembly includes a rotary drive member 30, a sliding member 40, and a positioning member 50. Among them, the rotary drive member 30 drives the valve body 22 to switch between the avoidance state and the exhaust state. The sliding member 40 moves synchronously with the rotary drive member 30, that is, when the rotary drive member 30 rotates, it drives the sliding member 40 to move, and when the rotary drive member 30 is stationary, the sliding member 40 is also stationary. Correspondingly, when the sliding member 40 moves, it will also drive the rotary drive member 30 to rotate, and when the sliding member 40 is stationary, the rotary drive member 30 also remains stationary. The first positioning portion 401 and the second positioning portion 402 are provided on the sliding member 40, and the positioning member 50 can be in positioning cooperation with the first positioning portion 401 or in positioning cooperation with the second positioning portion 402, so that when the rotary drive member 30 drives the valve body 22 to switch to the corresponding working state, the positioning member 50 can be in positioning cooperation with the sliding member 40 to limit the movement of the sliding member 40, that is, to limit the rotation of the rotary drive member 30, avoiding the user accidentally touching and causing the rotary drive member 30 to rotate and then driving the valve body 22 to deviate from the selected working state. In addition, due to the provision of the sliding member 40, the installation position of the positioning member 50 on the cover body 10 can be more flexible. Therefore, the technical solution of this embodiment can effectively solve the problem in the related art that the user may accidentally touch the drive member and cause the pressure limiting valve structure to deviate from the correct working state.

[0045] It should be noted that the above-mentioned "correct working state" refers to the working position corresponding to the cooking program selected by the user.

[0046] Such as Figures 1 to 6 And Figure 8As shown in the figure, a first transmission gear 31 is provided on the rotation driving member 30, and a second transmission gear 41 meshing with the first transmission gear 31 is provided on the sliding member 40. The synchronous movement or synchronous stillness between the rotation driving member 30 and the sliding member 40 is achieved through the meshing between the first transmission gear 31 and the second transmission gear 41, which can effectively ensure the corresponding relationship between the states of the rotation driving member 30 and the sliding member 40, and avoid the change of the relative position relationship between the two due to slipping or the like.

[0047] As Figure 8 and Figure 9 shown in the figure, the rotation driving member 30 includes a rotating ring 32 sleeved on the outer periphery of the valve body 22 and an arc-shaped plate 33 provided below the rotating ring 32, and the first transmission gear 31 is provided on the arc-shaped plate 33. Since the rotation stroke of the valve body 22 driven by the rotation of the rotation driving member 30 during state switching is generally not large, by providing the first transmission gear 31 on the arc-shaped plate 33, the first transmission gear 31 only occupies a part of the space below the rotating ring 32, and other structures (such as a buckle 34 for fixing the rotation driving member 30 on the cover body 10) can be provided in the other space below the rotating ring 32.

[0048] As Figures 1 to 6 shown in the figure, an installation port is provided on the cover body 10, an installation cylinder 11 is provided at the installation port, the rotation driving member 30 is an annular structure arranged in the installation cylinder 11, and a cooperation port 111 for the second transmission gear 41 to extend into and cooperate with the first transmission gear 31 is provided on the installation cylinder 11. The installation cylinder 11 can be used to install the rotation driving member 30 and guide the rotation of the rotation driving member 30. By providing the cooperation port 111 on the installation cylinder 11, it is convenient to realize the cooperation between the rotation driving member 30 and the sliding member 40.

[0049] As Figure 8 shown in the figure, a buckle 34 is provided below the rotating ring 32, and the buckle 34 is clamped and matched with the lower surface of the installation cylinder 11 to limit the upward detachment of the rotation driving member 30 from the cover body 10. The rotation driving member 30 further includes an operation part, and the operation part can specifically be an operation handle 35 provided on the rotating ring 32 or an operation cylinder with anti-slip ribs provided on the rotating ring 32.

[0050] As Figure 11 shown in the figure, the cover body assembly further includes a valve seat 70, the exhaust pipe 21 passes through the valve seat 70, the valve body 22 is located in the valve seat 70, the rotation driving member 30 is arranged on the outer periphery of the valve body 22, and the valve seat 70 is supported below the rotation driving member 30.

[0051] As Figures 1 to 6 and Figure 8As shown, the slider 40 includes a slide bar 42 and a first abutting member 43. The first positioning portion 401 and the second positioning portion 402 are provided on the slide bar 42. When the slide bar 42 moves to a position where the positioning member 50 is between the first positioning portion 401 and the second positioning portion 402, the first abutting member 43 pushes the slide bar 42 to move so that the first positioning portion 401 is in positioning cooperation with the positioning member 50 or the second positioning portion 402 is in positioning cooperation with the positioning member 50. When the user rotates the rotary driving member 30 to drive the valve body 22 to switch the working state, there may be a situation where the rotation angle is insufficient or too large, resulting in the part of the slide bar 42 between the first positioning portion 401 and the second positioning portion 402 being directly opposite to the positioning member 50 (that is, the valve body 22 does not reach the predetermined working position). Since the sensing accuracy of general sensors is relatively low, the sensing result of the sensor may be that the valve body 22 has reached the position, which affects the cooking effect. By providing the first abutting member 43, when the user rotates the angle too small or too large, the first abutting member 43 will push the slide bar 42, so that the first positioning portion 401 or the second positioning portion 402 on the slide bar 42 is in positioning cooperation with the positioning member 50, facilitating the sensor to accurately sense the state of the valve body 22. If the current valve body 22 is in the predetermined working position, the cooking proceeds normally; if the current valve body 22 is not in the predetermined working position, the user can be notified to make adjustments.

[0052] In addition, since the slider 40 is a moving member that moves along the preset straight line direction L, the first abutting member 43 can also be arranged along the preset straight line direction L, which can prevent the first abutting member 43 from bending or deforming in a direction other than the preset straight line direction L, and can prevent the first abutting member 43 from affecting the user's operation feel due to jamming or the failure of the first abutting member 43.

[0053] As Figures 3 to 6 shown, the first positioning portion 401 includes a first positioning groove 4011 and a second positioning groove 4012, the second positioning portion 402 includes a third positioning groove 4021, and the first positioning groove 4011 is located between the second positioning groove 4012 and the third positioning groove 4021. When the positioning member 50 is in positioning cooperation with the third positioning groove 4021, the valve body 22 is in a micro-pressure state; when the positioning member 50 is in positioning cooperation with the first positioning groove 4011, the valve body 22 is in a medium-pressure state; when the positioning member 50 is in positioning cooperation with the second positioning groove 4012, the valve body 22 is in a high-pressure state.

[0054] The following describes the action of the first abutting member 43 in conjunction with the drawings. As Figure 6 shown, when the positioning member 50 is between the third positioning groove 4021 and the first positioning groove 4011, the first abutting member 43 applies an abutting force towards the Figure 6 lower left in Figure 6until the first positioning groove 4011 is aligned with the positioning member 50 (i.e. Figure 4 The positioning member 50 is inserted into the first positioning groove 4011, and the slide bar 42 is kept in this position. Due to the cooperation between the first transmission tooth 31 and the second transmission tooth 41, the slide bar 42 will drive the rotary drive member 30 to rotate during the movement, and the rotation of the rotary drive member 30 drives the valve body 22 to switch to the medium pressure state; similarly, when the positioning member 50 is located between the second positioning groove 4012 and the first positioning groove 4011, the first push member 43 exerts a force toward the slide bar 42. Figure 6 The lower left push force causes the slide bar 42 to move Figure 6 until the second positioning groove 4012 is aligned with the positioning member 50 (i.e. Figure 5 The positioning member 50 is inserted into the second positioning groove 4012, and the slide bar 42 is kept in this position. Due to the cooperation between the first transmission tooth 31 and the second transmission tooth 41, the slide bar 42 will drive the rotary drive member 30 to rotate during the movement, and the rotary drive member 30 drives the valve body 22 to switch to the high pressure state. The first abutting member 43 is set so that the positioning member 50 cannot stay on the middle surface, thereby realizing the gear position fixing function.

[0055] like Figures 1 to 6 , Figure 8 and Figure 10 As shown, the slide bar 42 includes a positioning matching rod segment 421 and a mounting rod segment 422, the first positioning portion 401 and the second positioning portion 402 are arranged on the positioning matching rod segment 421, and the first push piece 43 is sleeved on the mounting rod segment 422. The mounting rod segment 422 can be used to install the first push piece 43 and guide the deformation of the first push piece 43, so that the first push piece 43 can only deform along the preset straight line direction L, thereby avoiding the first push piece 43 from being stuck or stuck.

[0056] Specifically, in this embodiment, the positioning and fitting rod segment 421 is a plate-like structure extending along a preset straight direction L, the mounting rod segment 422 is a rod-like structure arranged at one end of the positioning and fitting rod segment 421, and the cross-sectional dimension of the positioning and fitting rod segment 421 in the transverse direction and / or the vertical direction is larger than the cross-sectional diameter of the mounting rod segment 422, the first resisting member 43 is a compression spring structure sleeved on the mounting rod segment 422, and a baffle plate for passing the mounting rod segment 422 is provided on the cover body 10, and the two ends of the first resisting member 43 respectively resist the positioning and fitting rod segment 421 and the baffle plate and apply a resisting force to the positioning and fitting rod segment 421.

[0057] like Figure 8 As shown, the second transmission tooth 41 is arranged on a side of the positioning and matching rod segment 421 close to the rotary drive member 30 , and the first positioning portion 401 and the second positioning portion 402 are arranged on a side of the positioning and matching rod segment 421 away from the rotary drive member 30 .

[0058] As Figure 1 and Figure 2 shown, a first guiding member 12 extending along a preset straight line direction L is provided on the cover body 10, and a second guiding member guidingly cooperating with the first guiding member 12 is provided on the sliding rod 42. Among them, one of the first guiding member 12 and the second guiding member is a guiding chute, and the other of the first guiding member 12 and the second guiding member is a guiding slider. Through the cooperation of the guiding slider and the guiding chute, the sliding member 40 can only move in the preset straight line direction L, which has the advantages of simple structure and reliable guiding.

[0059] Specifically, in this embodiment, the first guiding member 12 is a guiding slider, and the second guiding member is a guiding chute.

[0060] As Figures 1 to 6 and Figure 8 shown, the positioning member 50 includes a top rod 51 and a second abutting member 52. Both the first positioning portion 401 and the second positioning portion 402 are positioning groove structures. The second abutting member 52 applies an abutting force towards the sliding member 40 to the top rod 51 so that the top rod 51 is inserted into the positioning groove structure. The positioning of the sliding member 40 is achieved through the cooperation of the top rod 51 and the second abutting member 52, which has the advantage of simple structure.

[0061] Among them, the second abutting member 52 is a compression spring structure sleeved on the top rod 51. A first stop member is provided on the top rod 51, and a second stop member is provided on the cover body 10. Both ends of the second abutting member 52 abut against the first stop member and the second stop member respectively and apply an abutting force to the first stop member.

[0062] As Figure 11 shown, the valve body 22 includes an inner valve 221 and an outer valve 222 provided on the outer periphery of the inner valve 221. When the rotary driving member 30 rotates, it drives the outer valve 222 to move in the vertical direction, so that the outer valve 222 switches between the positions of pressing down the inner valve 221, separating from the inner valve 221, and lifting the inner valve 221. When the valve body 22 is in the exhaust state, the outer valve 222 lifts the inner valve 221 to avoid the exhaust passage 211. The pressure states include a first pressure state and a second pressure state. When the valve body 22 is in the first pressure state, the outer valve 222 separates from the inner valve 221 so that the inner valve 221 presses on the upper side of the exhaust pipe 21 and blocks the exhaust passage 211. When the valve body 22 is in the second pressure state, the outer valve 222 presses down the inner valve 221 so that the outer valve 222 and the inner valve 221 jointly press on the upper side of the exhaust pipe 21 and block the exhaust passage 211. By providing a double-valve structure, the valve body 22 can switch between a high-pressure state (corresponding to the second pressure state), a medium-pressure state (corresponding to the first pressure state), and a micro-pressure state (corresponding to the exhaust state), realizing multi-stage pressure regulation.

[0063] Specifically, a boss structure is provided on the inner surface of the outer valve 222, and a groove structure is provided on the outer surface of the inner valve 221. The boss structure extends into the groove structure, and the height of the groove structure is greater than that of the boss structure. When the boss structure is in contact with the lower surface of the groove structure, the outer valve 222 and the inner valve 221 jointly press above the exhaust pipe 21; when the boss structure is separated from both the upper and lower surfaces of the groove structure, only the inner valve 221 presses above the exhaust pipe 21; when the boss structure is in contact with the upper surface of the groove structure, the outer valve 222 and the inner valve 221 avoid the exhaust passage 211.

[0064] As Figure 7 and Figure 12 shown, a support boss 13 is provided on the cover body 10, and a stepped structure 223 is provided on the bottom surface of the outer valve 222. The stepped structure has a plurality of stepped surfaces with different heights. The rotary driving member 30 is in anti-rotation cooperation with the outer valve 222. When the user rotates the rotary driving member 30, the outer valve 222 rotates synchronously with the rotary driving member 30. When the outer valve 222 rotates, different stepped surfaces cooperate with the support boss 13, so that the outer valve 222 moves in the up and down directions, thereby realizing the switching of the working state of the valve body 22.

[0065] As Figure 13 shown, the present application also provides a cooking appliance. The cooking appliance of the present application includes a cover body assembly, wherein the cover body assembly is the above-mentioned cover body assembly. The above-mentioned cover body assembly can effectively solve the problem that in the related art, the user may accidentally touch the driving member, causing the pressure limiting valve structure to deviate from the correct working state. The cooking appliance having the above-mentioned cover body assembly also has the above-mentioned advantages.

[0066] As Figure 13 shown, the cooking appliance further includes a pot body assembly 60, and the cover body assembly is disposed above the pot body assembly 60 in an openable and closable manner.

[0067] In this embodiment, the cooking appliance is a pressure cooking appliance. Of course, in an embodiment not shown in the figure, the cooking appliance can also be products such as an electric rice cooker, a low-pressure rice cooker, a soybean milk machine, a cooking machine, a stir-fry machine, an electric slow cooker, and a multi-functional pot.

[0068] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0069] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper", etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure. For example, if the device in the drawing is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations of the spatial relative descriptions used here will be made.

[0070] In addition, it should be noted that the use of terms such as "first" and "second" to define components is only for the convenience of differentiating the corresponding components. Without further statement, the above terms have no special meaning, so they cannot be construed as limiting the protection scope of the present utility model.

[0071] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A cover assembly, characterized in that, Comprising: A cover body (10); An exhaust valve (20), including an exhaust pipe (21) passing through the cover body (10) and a valve body (22) disposed above the exhaust pipe (21), the valve body (22) having a pressure state of blocking the exhaust passage (211) of the exhaust pipe (21) and an exhaust state of avoiding the exhaust passage (211); A rotary driving member (30), disposed on the cover body (10) and capable of driving the valve body (22) to switch between the pressure state and the exhaust state; A sliding member (40), movably disposed on the cover body (10) along a preset linear direction (L), the rotary driving member (30) being in driving cooperation with the sliding member (40) so that the rotary driving member (30) and the sliding member (40) move synchronously, when the rotary driving member (30) rotates, it drives the sliding member (40) to move along the preset linear direction (L), and a first positioning portion (401) and a second positioning portion (402) are spaced apart on the sliding member (40); A positioning member (50), movably disposed on the cover body (10), the positioning member (50) being capable of positioning cooperation with the first positioning portion (401) to keep the valve body (22) in the pressure state and positioning cooperation with the second positioning portion (402) to keep the valve body (22) in the exhaust state.

2. The cover assembly according to claim 1, wherein A first transmission tooth (31) is provided on the rotary driving member (30), and a second transmission tooth (41) meshing with the first transmission tooth (31) is provided on the sliding member (40).

3. The cover assembly according to claim 2, wherein, The rotary driving member (30) includes a rotating ring (32) sleeved on the outer periphery of the valve body (22) and an arc-shaped plate (33) disposed below the rotating ring (32), and the first transmission tooth (31) is provided on the arc-shaped plate (33).

4. The cover assembly according to claim 2, characterized in that An installation opening is provided on the cover body (10), an installation cylinder (11) is provided at the installation opening, the rotary driving member (30) is an annular structure disposed in the installation cylinder (11), and a cooperation opening (111) for the second transmission tooth (41) to extend into and cooperate with the first transmission tooth (31) is provided on the installation cylinder (11).

5. The cover assembly according to any one of claims 1 to 4, characterized in that The sliding member (40) includes a sliding rod (42) and a first abutting member (43), the first positioning portion (401) and the second positioning portion (402) are provided on the sliding rod (42), when the sliding rod (42) moves to a position where the positioning member (50) is located between the first positioning portion (401) and the second positioning portion (402), the first abutting member (43) pushes the sliding rod (42) to move so that the first positioning portion (401) is in positioning cooperation with the positioning member (50) or the second positioning portion (402) is in positioning cooperation with the positioning member (50).

6. The cover assembly according to claim 5, wherein, The slide bar (42) includes a positioning and mating rod section (421) and a mounting rod section (422). The first positioning portion (401) and the second positioning portion (402) are provided on the positioning and mating rod section (421), and the first abutting member (43) is sleeved on the mounting rod section (422).

7. The cover assembly according to claim 5, wherein, A first guiding member (12) extending along the preset straight-line direction (L) is provided on the cover body (10), and a second guiding member that is guidingly mated with the first guiding member (12) is provided on the slide bar (42). Wherein, one of the first guiding member (12) and the second guiding member is a guiding chute, and the other of the first guiding member (12) and the second guiding member is a guiding slider.

8. The cover assembly according to any one of claims 1 to 4, characterized in that, The positioning member (50) includes a jacking rod (51) and a second abutting member (52). The first positioning portion (401) and the second positioning portion (402) are both positioning groove structures. The second abutting member (52) applies an abutting force towards the sliding member (40) to the jacking rod (51) so that the jacking rod (51) is inserted into the positioning groove structure.

9. The cover assembly according to any one of claims 1 to 4, characterized in that The valve body (22) includes an inner valve (221) and an outer valve (222) provided on the outer periphery of the inner valve (221). When the rotary driving member (30) rotates, it drives the outer valve (222) to move in the vertical direction so that the outer valve (222) switches between positions of pressing down the inner valve (221), separating from the inner valve (221), and lifting the inner valve (221). When the valve body (22) is in the exhaust state, the outer valve (222) lifts the inner valve (221) to avoid the exhaust passage (211). The pressure state includes a first pressure state and a second pressure state. When the valve body (22) is in the first pressure state, the outer valve (222) separates from the inner valve (221) so that the inner valve (221) presses on the upper side of the exhaust pipe (21) and blocks the exhaust passage (211). When the valve body (22) is in the second pressure state, the outer valve (222) presses down the inner valve (221) so that the outer valve (222) and the inner valve (221) jointly press on the upper side of the exhaust pipe (21) and block the exhaust passage (211).

10. A cooking appliance, comprising a lid assembly, characterized in that, The cover body assembly is the cover body assembly according to any one of claims 1 to 9.

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