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 pressure limiting valve structure comprises an exhaust pipe penetrating through the cover body and a valve body movably arranged above the exhaust pipe, the exhaust pipe is provided with an exhaust channel, and the valve body is provided with a pressure limiting position for blocking the exhaust channel and an avoiding position for avoiding the exhaust channel; the mounting seat is connected to the cover body, and the pressure limiting valve structure is mounted in the mounting seat; the rotary driving part is rotatably arranged between the cover body and the mounting base, and the rotary driving part drives the valve body to be switched between the pressure limiting position and the avoiding position when rotating; and the sealing piece is arranged between the rotary driving piece and the mounting base so as to limit steam from entering the cover body from the space between the rotary driving piece and the mounting base. According to the technical scheme, the problem that in the related technology, high-temperature steam enters the cover body and scalds a user easily 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 assembly and a cooking appliance having the same. Background Art

[0002] In the related art, a pressure cooker has a pressure limiting valve structure, and the pressure limiting valve structure can have multiple working states (for example, different pressure states), and a user can drive the pressure limiting valve structure to switch states through an operating member arranged at the pressure limiting valve structure.

[0003] The operating member is generally a movable member installed on a valve seat, and the high-temperature steam discharged by the pressure limiting valve structure easily enters the interior of the cover through the gap between the operating member and the valve seat, so that the temperature of the cover near the pressure limiting valve structure rises, and it is easy to scald the user. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a cover assembly and a cooking appliance having the same, so as to solve the problem that the high-temperature steam in the related art easily enters the interior of the cover and scalds the user.

[0005] To achieve the above object, according to one aspect of the utility model, a cover assembly is provided, including: a cover body; a pressure limiting valve structure, including an exhaust pipe passing through the cover body and a valve body movably arranged above the exhaust pipe, the exhaust pipe having an exhaust passage, and the valve body having a pressure limiting position for blocking the exhaust passage and a bypass position for bypassing the exhaust passage; a mounting seat connected to the cover body, and the pressure limiting valve structure is mounted in the mounting seat; a rotary driving member rotatably arranged between the cover body and the mounting seat, and when the rotary driving member rotates, it drives the valve body to switch between the pressure limiting position and the bypass position; and a sealing member arranged between the rotary driving member and the mounting seat to limit steam from entering the interior of the cover body between the rotary driving member and the mounting seat.

[0006] Applying the technical solution of the utility model, the rotary driving member is rotatably arranged between the cover body and the mounting seat, and when the rotary driving member rotates, it drives the valve body to switch between the pressure limiting position and the bypass position. The sealing member is arranged between the rotary driving member and the mounting seat and can block the gap between the rotary driving member and the mounting seat, so that the high-temperature steam discharged by the pressure limiting valve structure is discharged from the inner side of the mounting seat and the rotary driving member or condensed in the space inside the mounting seat and the rotary driving member, avoiding the high-temperature steam from entering the interior of the cover body through the gap between the rotary driving member and the mounting seat, and further avoiding the temperature of the part of the cover body near the pressure limiting valve structure from rising to the degree that can scald the user. Therefore, the technical solution of the present application can effectively solve the problem that the high-temperature steam in the related art easily enters the interior of the cover body and scalds the user.

[0007] Further, the seal includes an installation body and a sealing edge provided on the installation body. The sealing edge extends in an oblique direction. The installation body is provided on one of the rotary driving member and the mounting seat, and the sealing edge abuts and seals against the other of the rotary driving member and the mounting seat. The sealing edge extends in an oblique direction and has a large deformation ability. It can have a large interference amount with the rotary driving member or the mounting seat to ensure the sealing effect, while reducing the resistance to the rotation of the rotary driving member relative to the mounting seat so that the rotary driving member can rotate smoothly.

[0008] Further, the mounting seat includes an installation cylinder, and the pressure limiting valve structure is arranged inside the installation cylinder. The rotary driving member includes a rotating ring and a sealing cylinder provided on the lower surface of the rotating ring. The rotating ring is arranged above the installation cylinder, and the sealing cylinder is located on the outer periphery of the installation cylinder. The seal is arranged between the installation cylinder and the sealing cylinder. By providing a sealing cylinder on the rotary driving member and making the sealing cylinder located on the outer periphery of the installation cylinder, a space for installing the seal is formed between the two, which is convenient for installing the seal.

[0009] Further, when the installation body is provided on the mounting seat, an installation ring groove is provided on the outer surface of the installation cylinder, and the installation body is arranged in the installation ring groove. The sealing edge extends downward and abuts and seals against the sealing cylinder. The extending direction of the sealing edge is consistent with the moving direction of the sealing cylinder relative to the installation cylinder when the mounting seat and the rotary driving member are installed. When the sealing cylinder contacts the sealing edge during the installation process, the sealing edge is prone to deform downward and inward to avoid hindering the movement of the rotary driving member relative to the mounting seat 30, ensuring the smoothness of the assembly of the cover body assembly.

[0010] Further, there is a first interference amount L1 between the installation body and the bottom wall of the installation ring groove, where 0mm < L1 ≤ 2mm; and / or, there is a second interference amount L2 between the sealing edge and the sealing cylinder, where 1mm ≤ L2 ≤ 5mm. The first interference amount L1 within the above range can take into account both the installation firmness between the seal and the installation cylinder and the convenience of installing the seal onto the installation cylinder; the second interference amount L2 within the above range can take into account both the sealing effect on the mounting seat and the rotary driving member and the smoothness of the rotation of the rotary driving member relative to the mounting seat.

[0011] Further, the thickness T of the sealing edge satisfies: 0.5mm ≤ T ≤ 2mm; and / or, the sealing edge has an angle a with the vertical direction, where 20° ≤ a ≤ 60°. The thickness T within the above range can take into account both the deformation ability of the sealing edge and the sealing effect with the sealing cylinder; the angle a within the above range can take into account both the sealing effect between the sealing edge and the sealing cylinder and the smoothness of the movement of the rotary driving member relative to the mounting seat during installation.

[0012] Furthermore, when the mounting body is mounted on the rotary drive member, a mounting groove with an upper opening is provided on the mounting body, the lower end of the sealing cylinder is inserted into the mounting groove, and the sealing edge extends upward to abut against the mounting cylinder for sealing. The extending direction of the sealing edge is consistent with the direction of movement of the mounting cylinder relative to the sealing cylinder during installation of the mounting seat and the rotary drive member. When the mounting cylinder contacts the sealing edge during installation, the sealing edge easily deforms upward and outward to avoid obstructing the movement of the rotary drive member relative to the mounting seat, thereby ensuring smooth assembly of the cover assembly.

[0013] Furthermore, the rotary drive member further includes a first supporting protrusion arranged on the inner side of the rotating ring and extending downward, a first matching groove is provided on the top surface of the mounting cylinder, and the first supporting protrusion is inserted into the first matching groove; and / or, a mounting port is provided on the cover body, the pressure limiting valve structure and the mounting seat are provided in the mounting port, the cover body includes a second supporting protrusion arranged at the mounting port, and the rotary drive member further includes an operating ring arranged on the outer side of the rotating ring and extending upward, a second matching groove is provided on the lower surface of the operating ring, and the second supporting protrusion is inserted into the second matching groove. Through the cooperation of the first supporting protrusion and the first matching groove, the contact area between the mounting cylinder and the rotary drive member can be reduced, and through the cooperation of the second matching groove and the second supporting protrusion, the contact area between the rotary drive member and the cover body can be reduced, so that the rotation of the rotary drive member relative to the mounting seat and the cover body is smoother, and at the same time, the position limitation of the rotary drive member in the lateral direction can be achieved.

[0014] Furthermore, a stepped structure is provided on the bottom or outer surface of the valve body, the stepped structure having multiple stepped surfaces of different heights. A switching protrusion supported below the stepped structure is provided on the mounting seat or the cover body. The valve body and the rotary drive member are locked in rotation. When the rotary drive member rotates, it drives the valve body to rotate synchronously and causes the different stepped surfaces to cooperate with the switching protrusion, so that the valve body switches between the pressure-limiting position and the avoidance position. When the rotary drive member rotates, it can drive the valve body to rotate so that the stepped surfaces of different heights cooperate with the switching protrusion, thereby realizing the switching of the working state of the valve body.

[0015] According to another aspect of the present invention, a cooking utensil is provided, comprising a cover assembly, wherein the cover assembly is the above-mentioned cover assembly. The above-mentioned cover assembly can effectively solve the problem in the related art of high-temperature steam entering the interior of the cover and easily scalding the user. The cooking utensil having the above-mentioned cover assembly also has the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A cross-sectional schematic view showing a partial structure of a first embodiment of a cover assembly according to the present utility model;

[0018] Figure 2 Shows Figure 1 An enlarged view of part A of the cover assembly;

[0019] Figure 3 Shows Figure 1 An enlarged view of part B of the cover assembly;

[0020] Figure 4 Shows Figure 1 An enlarged view of a partial structure of the top surface of the cover assembly;

[0021] Figure 5 Shows Figure 1 A three-dimensional structural schematic diagram of the valve body of the cover assembly;

[0022] Figure 6 A cross-sectional schematic view showing a partial structure of a second embodiment of a cover assembly according to the present utility model;

[0023] Figure 7 Shows Figure 6 An enlarged view of part C of the cover assembly;

[0024] Figure 8 A cross-sectional schematic view showing a partial structure of a third embodiment of a cover assembly according to the present utility model;

[0025] Figure 9 Shows Figure 8 An enlarged view of part D of the cover assembly.

[0026] Among them, the above-mentioned drawings include the following reference numerals:

[0027] 10. Cover body; 11. Second support protrusion; 12. Switching protrusion;

[0028] 20. Pressure limiting valve structure; 21. Exhaust pipe; 211. Exhaust passage; 22. Valve body; 221. Inner valve body; 222. Outer valve body; 23. Step structure; 231. Step surface;

[0029] 30. Mounting seat; 31. Mounting cylinder; 311. Mounting ring groove; 312. First mating groove;

[0030] 40. Rotary drive member; 41. Rotating ring; 42. Sealing cylinder; 43. First support protrusion; 44. Operating ring; 441. Second mating groove;

[0031] 50. Sealing member; 51. Mounting main body; 511. Mounting groove; 52. Sealing edge;

[0032] L1, the first interference quantity; L2, the second interference quantity; T, the thickness; a, the included angle. Detailed implementation manners

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the protection scope of the present utility model.

[0034] It should be noted that the terms used herein are only for describing the specific implementation manners 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 "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0035] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps described 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 according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as a part of the specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings.

[0036] The present application provides a cover body assembly, wherein, Figures 1 to 5 shows a schematic structural diagram of a first embodiment of the cover body assembly according to the present application, <% Figure 6 and Figure 7 shows a schematic structural diagram of a second embodiment of the cover body assembly according to the present application, Figure 8 and Figure 9 shows a schematic structural diagram of a third embodiment of the cover body assembly according to the present application.

[0037] As Figures 1 to 3As shown, the first embodiment of the cover assembly of the present application includes: a cover 10, a pressure-limiting valve structure 20, a mounting seat 30, a rotary drive member 40 and a sealing member 50. Among them, the pressure-limiting valve structure 20 includes an exhaust pipe 21 passing through the cover 10 and a valve body 22 movably arranged above the exhaust pipe 21, the exhaust pipe 21 has an exhaust channel 211, and the valve body 22 has a pressure-limiting position for blocking the exhaust channel 211 and a avoidance position for avoiding the exhaust channel 211; the mounting seat 30 is connected to the cover 10, and the pressure-limiting valve structure 20 is installed in the mounting seat 30; the rotary drive member 40 is rotatably arranged between the cover 10 and the mounting seat 30, and when the rotary drive member 40 rotates, it drives the valve body 22 to switch between the pressure-limiting position and the avoidance position; the sealing member 50 is arranged between the rotary drive member 40 and the mounting seat 30 to limit steam from entering the interior of the cover 10 from between the rotary drive member 40 and the mounting seat 30.

[0038] Using the technical solution of this embodiment, the rotary drive member 40 is rotatably disposed between the cover body 10 and the mounting seat 30. When the rotary drive member 40 rotates, it drives the valve body 22 to switch between the pressure-limiting position and the avoidance position. The sealing member 50 is disposed between the rotary drive member 40 and the mounting seat 30 and is capable of sealing the gap between the rotary drive member 40 and the mounting seat 30. This allows the high-temperature steam discharged from the pressure-limiting valve structure 20 to be discharged from the inner side of the mounting seat 30 and the rotary drive member 40 or condensed in the space inside the mounting seat 30 and the rotary drive member 40, thereby preventing the high-temperature steam from entering the interior of the cover body 10 through the gap between the rotary drive member 40 and the mounting seat 30. This can further prevent the temperature of the portion of the cover body 10 near the pressure-limiting valve structure 20 from rising to a level that could scald the user. Therefore, the technical solution of this embodiment can effectively solve the problem in the related art that high-temperature steam entering the interior of the cover body can easily scald the user.

[0039] like Figures 1 to 3 As shown, the sealing member 50 includes a mounting body 51 and a sealing edge 52 disposed on the mounting body 51. The sealing edge 52 extends in an oblique direction. The mounting body 51 is disposed on one of the rotary drive member 40 and the mounting seat 30, and the sealing edge 52 abuts against the other of the rotary drive member 40 and the mounting seat 30 to seal. Since the rotary drive member 40 drives the valve body 22 to switch states by rotating, the rotary drive member 40 rotates relative to the mounting seat 30. The sealing edge 52 extends in an oblique direction and has a large deformability. This allows for a large interference with the rotary drive member 40 or the mounting seat 30 to ensure a sealing effect, while reducing resistance to the rotation of the rotary drive member 40 relative to the mounting seat 30, allowing the rotary drive member 40 to rotate smoothly. In other words, the obliquely disposed sealing edge 52 facilitates dynamic sealing between the rotary drive member 40 and the mounting seat 30, thereby ensuring both a sealing effect and a user-friendly feel when rotating the rotary drive member 40.

[0040] It should be noted that the above-mentioned "the sealing edge 52 extends in an oblique direction" means that the included angle between the extending direction of the sealing edge 52 and the vertical direction is greater than 0° and less than 90°.

[0041] As Figures 1 to 3 shown, the mounting base 30 includes a mounting cylinder 31, the pressure limiting valve structure 20 is arranged inside the mounting cylinder 31, the rotary driving member 40 includes a rotating ring 41 and a sealing cylinder 42 arranged on the lower surface of the rotating ring 41. The rotating ring 41 is arranged above the mounting cylinder 31, the sealing cylinder 42 is located on the outer periphery of the mounting cylinder 31, and the sealing member 50 is arranged between the mounting cylinder 31 and the sealing cylinder 42. By arranging the sealing cylinder 42 on the rotary driving member 40 and making the sealing cylinder 42 located on the outer periphery of the mounting cylinder 31, a space for mounting the sealing member 50 is formed between the two, which is convenient for mounting the sealing member 50.

[0042] Specifically, in this embodiment, both the mounting cylinder 31 and the sealing cylinder 42 extend along the vertical direction (including the vertical direction and the direction having a certain included angle with the vertical direction, for example: the included angle with the vertical direction can be between 0° and 15°).

[0043] As Figures 1 to 3 shown, when the mounting body 51 is arranged on the mounting base 30, a mounting ring groove 311 is arranged on the outer surface of the mounting cylinder 31, the mounting body 51 is arranged in the mounting ring groove 311, and the sealing edge 52 extends downward and abuts against and seals the sealing cylinder 42. By arranging the mounting ring groove 311 on the mounting cylinder 31 for accommodating the mounting body 51, it is convenient to mount and position the sealing member 50 on the mounting cylinder 31. When specifically assembling the cover assembly, the mounting base 30 is mounted on the cover 10 from bottom to top, the rotary driving member 40 is mounted on the cover 10 from top to bottom, and the sealing edge 52 extends downward, that is, the extending direction of the sealing edge 52 is consistent with the moving direction of the sealing cylinder 42 relative to the mounting cylinder 31 when the mounting base 30 and the rotary driving member 40 are mounted. When the sealing cylinder 42 contacts the sealing edge 52 during the mounting process, the sealing edge 52 is prone to deform downward and inward to avoid hindering the movement of the rotary driving member 40 relative to the mounting base 30, ensuring the smoothness of the assembly of the cover assembly.

[0044] It should be noted that the above-mentioned "the extending direction of the sealing edge 52 is consistent with the moving direction of the sealing cylinder 42 relative to the mounting cylinder 31 when the mounting base 30 and the rotary driving member 40 are mounted" does not mean that the two directions are completely the same, but means that the two directions are downward or have a downward component.

[0045] Specifically, in this embodiment, both the mounting body 51 and the sealing edge 52 are annular structures, and the sealing edge 52 is arranged on the outer side of the mounting body 51.

[0046] AsFigure 1 and Figure 3 As shown in Figure 3 , there is a first interference amount L1 between the installation main body 51 and the bottom wall of the installation ring groove 311, where 0 mm < L1 ≤ 2 mm. When the first interference amount L1 is within the above range, the installation firmness between the seal 50 and the installation cylinder 31 and the convenience of installing the seal 50 onto the installation cylinder 31 can be taken into account. Preferably, L1 can be 0.5 mm, 1 mm, 1.5 mm, or 2 mm.

[0047] As Figure 1 and Figure 3 As shown in Figure 3 , there is a second interference amount L2 between the sealing edge 52 and the sealing cylinder 42, where 1 mm ≤ L2 ≤ 5 mm. When the second interference amount L2 is within the above range, the sealing effect on the mounting base 30 and the rotary drive member 40 and the smoothness of the rotation of the rotary drive member 40 relative to the mounting base 30 can be taken into account. Preferably, L2 can be 1 mm, 2 mm, 3 mm, 4 mm, or 5 mm.

[0048] As Figure 1 and Figure 3 As shown in Figure 3 , the thickness T of the sealing edge 52 satisfies: 0.5 mm ≤ T ≤ 2 mm. When the thickness T is within the above range, the deformation ability of the sealing edge 52 and the sealing effect between the sealing edge 52 and the sealing cylinder 42 can be taken into account. Preferably, the thickness T can be 0.5 mm, 1 mm, 1.5 mm, or 2 mm.

[0049] As Figure 1 and Figure 3 As shown in Figure 3 , the sealing edge 52 has an angle a with the vertical direction, where 20° ≤ a ≤ 60°. When the angle a is within the above range, the sealing effect between the sealing edge 52 and the sealing cylinder 42 and the smoothness of the movement of the rotary drive member 40 relative to the mounting base 30 during installation can be taken into account. Preferably, the angle a can be 20°, 40°, or 60°.

[0050] It should be noted that the "vertical direction" in the above "the sealing edge 52 has an angle a with the vertical direction" refers to the vertical direction.

[0051] As Figure 1 and Figure 2As shown, the rotation driving member 40 further includes a first support protrusion 43 disposed inside the rotating ring 41 and extending downward. A first mating groove 312 is provided on the top surface of the mounting cylinder 31, and the first support protrusion 43 is inserted into the first mating groove 312. Specifically, the first mating groove 312 is a groove structure provided on the mounting cylinder 31 and open on both the inner side and the upper side. Through the cooperation of the first support protrusion 43 and the first mating groove 312, on the one hand, the contact area between the mounting cylinder 31 and the rotation driving member 40 can be reduced, making the rotation of the rotation driving member 40 relative to the mounting base 30 smoother. On the other hand, the outer groove wall of the first mating groove 312 can stop the first support protrusion 43 to limit the rotation driving member 40 in the lateral direction.

[0052] As Figure 1 and Figure 2 shown, the cover body 10 is provided with a mounting opening, the pressure limiting valve structure 20 and the mounting base 30 are disposed in the mounting opening. The cover body 10 includes a second support protrusion 11 provided at the mounting opening. The rotation driving member 40 further includes an operation ring 44 disposed outside the rotating ring 41 and extending upward. A second mating groove 441 is provided on the lower surface of the operation ring 44, and the second support protrusion 11 is inserted into the second mating groove 441. Specifically, the second mating groove 441 is a groove structure provided on the operation ring 44 and open on both the lower side and the outer side. Through the cooperation of the second mating groove 441 and the second support protrusion 11, on the one hand, the contact area between the rotation driving member 40 and the cover body 10 can be reduced, making the rotation of the rotation driving member 40 relative to the cover body 10 smoother. On the other hand, the inner groove wall of the second mating groove 441 can be in stop cooperation with the second support protrusion 11 to realize the lateral direction limit of the rotation driving member 40.

[0053] As Figure 4 and Figure 5As shown, a stepped structure 23 is provided on the bottom surface or the outer surface of the valve body 22. The stepped structure 23 has a plurality of stepped surfaces 231 with different heights. A switching convex portion 12 that supports below the stepped structure 23 is provided on the mounting seat 30 or the cover body 10. The valve body 22 and the rotary driving member 40 are in anti-rotation cooperation. When the rotary driving member 40 rotates, it drives the valve body 22 to rotate synchronously and makes different stepped surfaces 231 cooperate with the switching convex portion 12, so that the valve body 22 can be switched between a pressure-limiting position and an avoidance position. Specifically, a guiding structure can be provided between the valve body 22 and the rotary driving member 40. For example, a vertical guiding groove is provided on the inner side of the rotary driving member 40, and a sliding block that cooperates with the vertical guiding groove is provided on the outer surface of the valve body 22 to realize the synchronous rotation of the valve body 22 following the rotary driving member 40. At the same time, the valve body 22 can move relative to the rotary driving member 40 in the vertical direction. By providing a plurality of stepped surfaces 231 with different heights on the valve body 22, when the rotary driving member 40 drives the valve body 22 to rotate, different stepped surfaces 231 support and cooperate with the switching convex portion 12, causing the height of the valve body 22 to change, and further enabling the valve body 22 to be switched between a pressure-limiting position and an avoidance position.

[0054] As Figure 1 shown, in this embodiment, the valve body 22 includes an inner valve body 221 and an outer valve body 222. The outer valve body 222 is sleeved on the outer periphery of the inner valve body 221. Among them, a convex structure is provided on the inner surface of the outer valve body 222, and a groove structure is provided on the outer surface of the inner valve body 221. The convex structure extends into the groove structure, and the height of the groove structure is greater than the height of the convex structure. When the rotary driving member 40 rotates, it drives the outer valve body 222 to move in the vertical direction, and further enables the outer valve body 222 and the inner valve body 221 to have different cooperation states. Specifically, when the convex structure abuts against the lower groove wall of the groove structure, the outer valve body 222 presses on the inner valve body 221, so that the outer valve body 222 and the inner valve body 221 jointly press on the exhaust pipe 21 and block the exhaust passage 211, and high-pressure cooking can be realized; when the convex structure is separated from both the upper and lower groove walls of the groove structure, the outer valve body 222 is separated from the inner valve body 221, and only the inner valve body 221 presses on the exhaust pipe 21 and blocks the exhaust passage 211 to realize medium-pressure cooking; when the convex structure abuts against the upper groove wall of the groove structure, the outer valve body 222 lifts the inner valve body 221, so that neither the inner valve body 221 nor the outer valve body 222 blocks the exhaust passage 211, and micro-pressure cooking is realized. By setting the valve body 22 as a double-valve structure, a multi-stage pressure regulation function can be realized.

[0055] Figure 6 and ​ FIG. shows a schematic structural diagram of a second embodiment of the cover body assembly according to the present application. The following mainly describes the parts of the second embodiment that are different from the first embodiment in combination with the drawings. The same parts in the two embodiments will not be described again.

[0056] As​ and ​ As shown in ​ and ​ , in this embodiment, the mounting body 51 is arranged on the rotary driving member 40. Specifically, an upwardly open mounting groove 511 is provided on the mounting body 51, and the lower end of the sealing cylinder 42 is inserted into the mounting groove 511. The sealing edge 52 extends upward and abuts against and seals the mounting cylinder 31. When specifically assembling the cover assembly, the mounting base 30 is mounted on the cover body 10 from bottom to top, the rotary driving member 40 is mounted on the cover body from top to bottom, and the sealing edge 52 extends upward. That is, the extending direction of the sealing edge 52 is consistent with the moving direction of the mounting cylinder 31 relative to the sealing cylinder 42 when the mounting base 30 and the rotary driving member 40 are mounted. When the mounting cylinder 31 contacts the sealing edge 52 during the mounting process, the sealing edge 52 is prone to upward and outward deformation to avoid hindering the movement of the rotary driving member 40 relative to the mounting base 30, ensuring the smoothness of the assembly of the cover assembly.

[0057] It should be noted that the above-mentioned "the extending direction of the sealing edge 52 is consistent with the moving direction of the mounting cylinder 31 relative to the sealing cylinder 42 when the mounting base 30 and the rotary driving member 40 are mounted" does not mean that the two directions are exactly the same, but that the two directions are upward or have an upward component.

[0058] Specifically, in this embodiment, both the mounting body 51 and the sealing edge 52 are annular structures, and the sealing edge 52 is arranged on the outer side of the mounting body 51.

[0059] To ensure the firm installation of the mounting body 5 and the sealing cylinder 42, a limiting protrusion is provided on the sealing cylinder 42, and a corresponding limiting groove is provided on the side wall of the mounting groove 511. After the lower end of the sealing cylinder 42 is inserted into the mounting groove 511, the limiting protrusion extends into the limiting groove.

[0060] ​ and ​ Figs. ​ and ​ show a schematic structural diagram of the third embodiment of the cover assembly according to the present application. The following mainly describes the parts of the third embodiment that are different from the first embodiment in combination with the drawings, and the same parts in the two embodiments will not be described again.

[0061] As ​ and ​ shown, in this embodiment, the sealing member 50 is an O-ring arranged between the sealing cylinder 42 and the mounting cylinder 31. An installation groove for accommodating the O-ring is provided on the outer surface of the mounting cylinder 31, and the outer surface of the O-ring abuts against and seals the sealing cylinder 42.

[0062] The present application also provides a cooking appliance. An embodiment of the cooking appliance of the present application includes a lid assembly, wherein the lid assembly is the above-mentioned lid assembly. The above-mentioned lid assembly can effectively solve the problem that high-temperature steam in the related art easily scalds users when entering the interior of the lid, and the cooking appliance having the above-mentioned lid assembly also has the above-mentioned advantages.

[0063] In this embodiment, the cooking appliance is a pressure cooking appliance. Of course, in embodiments not shown in the figures, the cooking appliance may also be products such as a rice cooker, a low-pressure rice cooker, a soymilk machine, a food processor, a stir-fry machine, an electric slow cooker, a multi-functional pot, etc.

[0064] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, 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 utility model and simplifying the description. Without contrary explanation, 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. Therefore, it should not be construed as a limitation on the protection scope of the present utility model; the orientation words "inner, outer" refer to the inside and outside relative to the contour of each component itself.

[0065] For the convenience of description, spatial relative terms such as "above...", "above...", "on the upper surface of...", "above" can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation other than the orientation described in the figure for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned "below other devices or structures" or "beneath other devices or structures" afterwards. 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 explanations are made for the spatial relative descriptions used here.

[0066] In addition, it should be noted that using words such as "first", "second" to limit components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.

[0067] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. 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, include: Cover (10); A pressure-limiting valve structure (20) comprises an exhaust pipe (21) passing through the cover body (10) and a valve body (22) movably arranged above the exhaust pipe (21); the exhaust pipe (21) has an exhaust passage (211); and the valve body (22) has a pressure-limiting position for blocking the exhaust passage (211) and a relief position for avoiding the exhaust passage (211); A mounting seat (30) connected to the cover body (10), wherein the pressure-limiting valve structure (20) is mounted in the mounting seat (30); a rotary drive member (40) rotatably disposed between the cover body (10) and the mounting seat (30), wherein the rotary drive member (40) drives the valve body (22) to switch between the pressure-limiting position and the avoidance position when the rotary drive member (40) rotates; A sealing member (50) is provided between the rotary driving member (40) and the mounting seat (30) to limit steam from entering into the interior of the cover body (10) from between the rotary driving member (40) and the mounting seat (30).

2. The cover assembly according to claim 1, wherein The sealing member (50) comprises a mounting body (51) and a sealing edge (52) arranged on the mounting body (51), wherein the sealing edge (52) extends in an oblique direction, the mounting body (51) is arranged on one of the rotary drive member (40) and the mounting seat (30), and the sealing edge (52) abuts against the other of the rotary drive member (40) and the mounting seat (30) for sealing.

3. The cover assembly according to claim 2, characterized in that, The mounting seat (30) includes a mounting cylinder (31), the pressure-limiting valve structure (20) is arranged in the mounting cylinder (31), the rotary driving member (40) includes a rotating ring (41) and a sealing cylinder (42) arranged on the lower surface of the rotating ring (41), the rotating ring (41) is arranged above the mounting cylinder (31), the sealing cylinder (42) is located on the outer periphery of the mounting cylinder (31), and the sealing member (50) is arranged between the mounting cylinder (31) and the sealing cylinder (42).

4. The cover assembly according to claim 3, characterized in that, When the mounting body (51) is arranged on the mounting seat (30), a mounting ring groove (311) is provided on the outer surface of the mounting cylinder (31), the mounting body (51) is arranged in the mounting ring groove (311), and the sealing edge (52) extends downward and abuts against the sealing cylinder (42) for sealing.

5. The cover assembly according to claim 4, wherein: There is a first interference L1 between the mounting body (51) and the bottom wall of the mounting ring groove (311), wherein 0mm<L1≤2mm; and / or, There is a second interference amount L2 between the sealing edge (52) and the sealing cylinder (42), wherein 1mm≤L2≤5mm.

6. The cover assembly according to claim 4, wherein: The thickness T of the sealing edge (52) satisfies: 0.5 mm ≤ T ≤ 2 mm; and / or, The sealing edge (52) has an included angle a with the vertical direction, wherein 20°≤a≤60°.

7. The cover assembly according to claim 3, characterized in that, When the mounting body (51) is arranged on the rotary driving member (40), an upwardly open mounting groove (511) is provided on the mounting body (51), the lower end of the sealing cylinder (42) is inserted into the mounting groove (511), and the sealing edge (52) extends upward and abuts against and seals the mounting cylinder (31).

8. The cover assembly according to any one of claims 3 to 7, characterized in that The rotary driving member (40) further includes a first support protrusion (43) provided inside the rotating ring (41) and extending downward, a first mating groove (312) is provided on the top surface of the mounting cylinder (31), and the first support protrusion (43) is inserted into the first mating groove (312); and / or, An installation opening is provided on the cover body (10), the pressure limiting valve structure (20) and the mounting seat (30) are arranged in the installation opening, the cover body (10) includes a second support protrusion (11) provided at the installation opening, the rotary driving member (40) further includes an operation ring (44) provided outside the rotating ring (41) and extending upward, a second mating groove (441) is provided on the lower surface of the operation ring (44), and the second support protrusion (11) is inserted into the second mating groove (441).

9. The cover assembly according to any one of claims 1 to 7, characterized in that A stepped structure (23) is provided on the bottom surface or the outer surface of the valve body (22), the stepped structure (23) has a plurality of stepped surfaces (231) with different heights, a switching convex portion (12) that supports below the stepped structure (23) is provided on the mounting seat (30) or the cover body (10), the valve body (22) and the rotary driving member (40) are non-rotatably engaged, and when the rotary driving member (40) rotates, it drives the valve body (22) to rotate synchronously and enables different stepped surfaces (231) to cooperate with the switching convex portion (12), so that the valve body (22) is switched between the pressure limiting position and the avoidance position.

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

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