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. The cover body assembly comprises a cover body, the exhaust rod penetrates through the cover body; the pressure limiting valve is arranged at the upper end of the exhaust rod, and the pressure limiting valve is movably arranged on the cover body in the vertical direction and has a plurality of working states; the driving structure is rotatably arranged on the cover body and is in driving fit with the pressure limiting valve so as to drive the pressure limiting valve to be switched among a plurality of working states; the switching assembly comprises a guide groove and a guide protrusion inserted in the guide groove and matched with the guide groove in a guiding mode, the guide groove comprises a plurality of working sections and at least one inclined connecting section which are sequentially arranged in the circumferential direction and the axial direction of the pressure limiting valve, and when the driving structure rotates, the guide protrusion can be matched with the different working sections; and the pressure limiting valve is driven to be switched to different working states. According to the technical scheme, the problem that in the related technology, a user may miss to install a driving structure, and then subsequent voltage regulation operation is affected can be effectively solved.

Description

Technical Field

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

[0002] In the related art, a pressure-limiting valve is provided on the lid of the pressure cooking appliance; during normal cooking, no steam is exhausted from the pressure-limiting valve; when cooking is finished, the user can turn the dial on the pressure-limiting valve to rotate the pressure-limiting valve, and when the pressure-limiting valve is rotated to a certain position, the pressure-limiting valve is lifted and the steam is exhausted, thereby achieving the effect of quickly reducing the pressure in the cooking chamber to speed up the opening of the lid.

[0003] In order to further improve the cooking effect, the pressure limiting valve can be set to a structure that can adjust the pressure in multiple gears to adapt to the maximum pressure required by different foods. For this type of pressure limiting valve that can adjust the pressure in multiple gears, an additional driving structure is required to drive the pressure limiting valve to adjust the gears. Generally, the driving structure is movably connected to the pressure limiting valve through nesting and other methods. When the user removes the pressure limiting valve for cleaning, the driving structure will be taken down together. After the user completes the cleaning, the driving structure may be missed, affecting the subsequent pressure adjustment operation. Utility Model Content

[0004] The main purpose of the utility model is to provide a cover assembly and a cooking utensil having the same, so as to solve the problem in the related art that a user may miss installing a driving structure, thereby affecting subsequent pressure regulating operations.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a cover assembly is provided, including: a cover body; an exhaust rod, which is inserted into the cover body; a pressure limiting valve, which is arranged at the upper end of the exhaust rod, and the pressure limiting valve is movably arranged on the cover body in the vertical direction and has multiple working states; a driving structure, which is rotatably arranged on the cover body and cooperates with the pressure limiting valve driving to drive the pressure limiting valve to switch between multiple working states; a switching assembly, including a guide groove and a guide protrusion inserted in the guide groove and guided by the guide groove, one of the guide groove and the guide protrusion is arranged on the cover body, and the other of the guide groove and the guide protrusion is arranged on the driving structure, the guide groove includes a plurality of working sections and at least one inclined connecting section arranged in sequence along the circumferential direction and axial direction of the pressure limiting valve, and each two adjacent working sections are connected by an inclined connecting section, and when the driving structure rotates, the guide protrusion can cooperate with different working sections, so that the driving structure moves in the vertical direction and drives the pressure limiting valve to switch to different working states.

[0006] By applying the technical solution of the utility model, the pressure limiting valve is arranged above the exhaust rod. When the pressure in the cooking chamber is large enough, the pressure limiting valve will be pushed open to exhaust steam by overcoming the gravity of the pressure limiting valve. The pressure limiting valve has multiple working states. When the pressure limiting valve is in different working states, the force pressing on the exhaust rod is different, and the pressure required to lift the pressure limiting valve is also different, thereby realizing multi-speed pressure regulation. The driving structure is rotatably arranged on the cover body and realizes driving cooperation with the cover body through a switching component, wherein the switching component includes a guide groove and a guide protrusion inserted in the guide groove and guidingly cooperated with the guide groove. During use, the user can operate the driving structure to rotate so that the guide protrusion moves along the guide groove and cooperates with different working sections, thereby driving the pressure limiting valve to switch working states. In the present application, by setting the guide groove and the guide protrusion, the user can drive the pressure limiting valve to switch working states through the driving structure, thereby realizing multi-speed pressure regulation to adapt to the pressure required by different foods, so that the cooking effect is better, and it has the advantages of simple structure and easy operation. In addition, the guide protrusion is guided by the guide groove, the lower groove wall of the guide groove can support the guide protrusion, and the upper groove wall of the guide groove stops the guide protrusion and thus limits the drive structure from detaching upward from the cover assembly, thereby ensuring the installation stability of the drive structure. When the user removes the pressure-limiting valve for cleaning, the drive structure can still be stably installed on the cover assembly. Therefore, the technical solution of the present application can effectively solve the problem in the related art that the user may miss to install the drive structure and thus affect the subsequent pressure adjustment operation.

[0007] Furthermore, two groove walls of the guide groove that are arranged opposite to each other in the vertical direction form two guide surfaces. When the guide groove is arranged on the cover body and the guide protrusion is arranged on the driving structure, the cover body includes a face cover and a mounting seat, a guide surface is arranged on the face cover, and another guide surface is arranged on the mounting seat. A guide surface is arranged on each of the face cover and the mounting seat, and the two are spliced ​​together to form a complete guide groove. During specific processing, the face cover and the mounting seat are demolded separately to facilitate the formation of the guide groove.

[0008] Further, the face cover includes a cover body and a panel, the cover body is provided with a mounting hole, the panel is provided at the mounting hole, the guide surface on the face cover is provided on the lower surface of the panel, the mounting seat includes a cylinder portion passing through the mounting hole, the guide surface on the mounting seat is provided on the upper surface of the cylinder portion, and the mounting seat is detachably mounted on the face cover. By providing the panel on the face cover and providing the guide surface on the lower surface of the panel, and providing the cylinder portion on the mounting seat and providing the guide surface on the upper surface of the cylinder portion, a complete guide groove is formed after the two are butted.

[0009] Furthermore, there are multiple switching components, which are spaced apart along the circumferential direction of the pressure limiting valve. The multiple switching components realize multi-point support of the cover body on the driving structure, avoiding the skewness of the driving structure during position switching, so that the driving structure can stably switch positions.

[0010] Furthermore, the pressure limiting valve is provided with an outer flange, and the driving structure includes a rotating disk sleeved on the outer periphery of the pressure limiting valve, and the rotating disk is supported below the outer flange. The rotating disk is supported below the outer flange, and when the rotating disk moves in the vertical direction, the pressure limiting valve is driven to move with it, thereby realizing the switching of the working state of the pressure limiting valve, which has the advantages of simple structure and reliable driving.

[0011] Furthermore, the cover body is provided with a plurality of indicating positions, and the driving structure is provided with an indicating convex edge. When the pressure limiting valve is in different working states, the indicating convex edge matches with different indicating positions. The user can judge whether the driving structure has been rotated into place by the positional relationship between the indicating convex edge and the indicating position, which is convenient for the user to use.

[0012] Further, the pressure limiting valve includes a first valve body and a second valve body arranged on the outer periphery of the first valve body, a first convex edge and a second convex edge are arranged on the outer surface of the first valve body, the first convex edge and the second convex edge have a preset interval in the axial direction of the first valve body and the second convex edge is above the first convex edge, and a third convex edge is arranged on the inner surface of the second valve body, the third convex edge is located between the first convex edge and the second convex edge, and the height of the third convex edge is less than the preset interval, and multiple working states include a high-pressure state, a low-pressure state and a pressure-free state, and the driving structure can drive the second valve body to move in the vertical direction, when the second valve body moves to a position where the third convex edge abuts and cooperates with the first convex edge, the pressure limiting valve is in a high-pressure state, when the second valve body moves to a position where the third convex edge is separated from the first convex edge and the second convex edge, the pressure limiting valve is in a low-pressure state, and when the second valve body moves to a position where the third convex edge abuts and cooperates with the second convex edge, the pressure limiting valve is in a pressure-free state. By setting the pressure limiting valve as a split structure and respectively setting a first convex edge and a second convex edge on the first valve body and a third convex edge on the second valve body, three-speed pressure regulation is achieved, which has the advantages of simple structure and easy control.

[0013] Furthermore, the multiple working sections include a high-pressure section, a low-pressure section and a pressure-free section which are sequentially arranged and gradually increased along the circumferential direction of the pressure-limiting valve. When the guide protrusion cooperates with the high-pressure section, the pressure-limiting valve is in a high-pressure state. When the guide protrusion cooperates with the low-pressure section, the pressure-limiting valve is in a low-pressure state. When the guide protrusion cooperates with the pressure-free section, the pressure-limiting valve is in a pressure-free state. By setting the high-pressure section, the low-pressure section and the pressure-free section to correspond to the high-pressure state, the low-pressure state and the pressure-free state of the pressure-limiting valve respectively, the driving structure is driven to move in the vertical direction through the cooperation between the guide surface and the guide protrusion, thereby driving the pressure-limiting valve to switch positions, which has the advantage of a simple structure.

[0014] Furthermore, the first valve body includes a valve body and a valve cover which are separately arranged, the edge of the valve cover protrudes outward from the valve body to form a second convex edge, and the first convex edge is arranged on the outer surface of the valve body. The first valve body is arranged as a split structure, which facilitates the assembly of the first valve body and the second valve body.

[0015] According to another aspect of the utility model, 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 that the user may miss to install the driving structure and thus affect the subsequent pressure adjustment operation, and 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 the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A three-dimensional structural schematic diagram of an embodiment of a cover assembly according to the utility model is shown;

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

[0019] Figure 3 Shows Figure 1 A schematic diagram of the three-dimensional structure of a cover body of a cover body assembly;

[0020] Figure 4 Shows Figure 1 A schematic diagram of the three-dimensional structure of a mounting base of a cover assembly;

[0021] Figure 5 Shows Figure 1 A three-dimensional structural schematic diagram of a driving structure of a cover assembly;

[0022] Figure 6 Shows Figure 1 A schematic diagram of the three-dimensional structure of the pressure limiting valve of the cover assembly;

[0023] Figure 7 Shows Figure 6 A cross-sectional schematic diagram of a pressure limiting valve;

[0024] Figure 8 A cross-sectional schematic diagram of an embodiment of a cooking utensil according to the present utility model is shown;

[0025] Fig. 9 Shows Figure 8 An enlarged view of point B of the cooking utensil.

[0026] The above drawings include the following reference numerals:

[0027] 10. Cover body; 11. Surface cover; 111. Cover body; 112. Enclosure; 113. Mounting hole; 12. Mounting seat; 121. Cylinder body; 122. Lug; 123. Bottom plate; 124. Mounting cylinder; 13. Indicator position; 14. Press button; 15. Lever structure;

[0028] 20. Exhaust rod;

[0029] 30. pressure limiting valve; 31. outer flange; 32. first valve body; 321. first convex edge; 322. second convex edge; 323. valve body; 324. valve cover; 33. second valve body; 331. third convex edge; 332. valve body;

[0030] 40. driving structure; 41. rotating disk; 42. indicating convex edge;

[0031] 50. Switching assembly; 51. Guide surface; 52. Guide protrusion; 53. Guide groove; 531. Working section; 5311. High-pressure section; 5312. Low-pressure section; 5313. No-pressure section; 532. Inclined connecting section. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0033] 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, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0035] like Figure 1 as well as Figures 3 to 5 As shown, the present application provides a cover assembly, and an embodiment of the cover assembly of the present application includes: a cover 10, an exhaust rod 20, a pressure-limiting valve 30, a driving structure 40 and a switching assembly 50. Among them, the exhaust rod 20 is inserted into the cover 10; the pressure-limiting valve 30 is arranged at the upper end of the exhaust rod 20, and the pressure-limiting valve 30 is movably arranged on the cover 10 along the vertical direction and has multiple working states; the driving structure 40 is rotatably arranged on the cover 10 and cooperates with the driving of the pressure-limiting valve 30 to drive the pressure-limiting valve 30 to switch between multiple working states; the switching assembly 50 includes a guide groove 53 and a guide protrusion 52 inserted in the guide groove 53 and cooperates with the guide groove 53 for guiding, and one of the guide groove 53 and the guide protrusion 52 is arranged On the cover body 10, the other of the guide groove 53 and the guide protrusion 52 is arranged on the driving structure 40, and the guide groove 53 includes a plurality of working sections 531 and at least one inclined connecting section 532 which are arranged in sequence along the circumferential direction and axial direction of the pressure limiting valve 30. Each two adjacent working sections 531 are connected by an inclined connecting section 532. When the driving structure 40 rotates, the guide protrusion 52 can cooperate with different working sections 531, so that the driving structure 40 moves in the vertical direction and thereby drives the pressure limiting valve 30 to switch to different working states.

[0036] By applying the technical solution of this embodiment, the pressure limiting valve 30 is arranged above the exhaust rod 20. When the pressure in the cooking chamber is large enough, the pressure limiting valve 30 will be pushed open to exhaust steam by overcoming its gravity. The pressure limiting valve 30 has multiple working states. When the pressure limiting valve 30 is in different working states, the force pressing on the exhaust rod 20 is different, and the pressure required to lift the pressure limiting valve 30 is also different, thereby realizing multi-speed pressure regulation. The driving structure 40 is rotatably arranged on the cover body 10 and realizes driving cooperation with the cover body 10 through the switching assembly 50, wherein the switching assembly 50 includes a guide groove 53 and a guide protrusion 52 inserted in the guide groove 53 and guidingly cooperated with the guide groove 53. During use, the user can operate the driving structure 40 to rotate so that the guide protrusion 52 moves along the guide groove 53 and cooperates with different working sections 531, thereby driving the pressure limiting valve 30 to switch working states. In this embodiment, by providing the guide groove 53 and the guide protrusion 52, the user can drive the pressure limiting valve 30 to switch the working state through the driving structure 40, thereby realizing multi-speed pressure regulation to adapt to the pressure required by different foods, so that the cooking effect is better, and it has the advantages of simple structure and easy operation. In addition, the guide protrusion 52 is guided by the guide groove 53, the lower groove wall of the guide groove 53 can support the guide protrusion 52, and the upper groove wall of the guide groove 53 stops the guide protrusion 52 and thus limits the driving structure 40 from upwardly separating from the cover body assembly, ensuring the installation stability of the driving structure 40. When the user removes the pressure limiting valve 30 for cleaning, the driving structure 40 can still be stably installed on the cover body assembly. Therefore, the technical solution of this embodiment can effectively solve the problem in the related art that the user may miss to install the driving structure and thus affect the subsequent pressure regulation operation.

[0037] Specifically, in this embodiment, the pressure limiting valve 30 has at least two working states, for example, a pressure limiting state in which the pressure limiting valve 30 is pressed on the exhaust rod 20 and a pressure-free state in which the pressure limiting valve 30 is lifted by the driving structure 40 and no longer blocks the exhaust rod 20; or the pressure limiting valve 30 is provided as a split structure so that the pressure limiting valve 30 has three working states (mentioned later).

[0038] like Figure 1 as well as Figures 3 to 5 As shown, two groove walls of the guide groove 53 arranged opposite to each other in the vertical direction form two guide surfaces 51. When the guide groove 53 is arranged on the cover body 10 and the guide protrusion 52 is arranged on the driving structure 40, the cover body 10 includes a face cover 11 and a mounting seat 12. The face cover 11 is provided with a guide surface 51, and the mounting seat 12 is provided with another guide surface 51. The cover body 10 includes a face cover 11 and a mounting seat 12 which are arranged separately, and a guide surface 51 is provided on each of the face cover 11 and the mounting seat 12. The two are spliced ​​together to form a complete guide groove 53. During specific processing, the face cover 11 and the mounting seat 12 are demolded separately to facilitate the formation of the guide groove 53.

[0039] like Figure 3 and Figure 4 As shown, the face cover 11 includes a cover body 111 and a panel 112, the cover body 111 is provided with a mounting hole 113, the panel 112 is provided at the mounting hole 113, the guide surface 51 on the face cover 11 is provided on the lower surface of the panel 112, the mounting seat 12 includes a barrel portion 121 penetrating the mounting hole 113, the guide surface 51 on the mounting seat 12 is provided on the upper surface of the barrel portion 121, and the mounting seat 12 is detachably mounted on the face cover 11. By providing the panel 112 on the face cover 11 and providing the guide surface 51 on the lower surface of the panel 112, and providing the barrel portion 121 on the mounting seat 12 and providing the guide surface 51 on the upper surface of the barrel portion 121, a complete guide groove 53 is formed after the two are docked. In addition, after the panel 112 and the mounting seat 12 are docked, the steam flowing out of the exhaust rod 20 can be blocked to prevent the steam from entering between the cover body 10 and the steel cover to form condensed water.

[0040] Specifically, Figure 4 and Fig. 9 As shown, the barrel portion 121 includes a double-layer plate structure arranged at intervals in the radial direction, wherein the inner plate structure protrudes upward from the outer plate structure, and a guide surface 51 is formed on the upper surface of the outer plate structure; the driving structure 40 includes a turntable 41, the turntable 41 includes an operating disk and an annular plate arranged below the operating disk, and a guide protrusion 52 is arranged on the outer surface of the annular plate. When the driving structure 40 is assembled with the face cover 11 and the mounting seat 12, the annular plate of the turntable 41 will be inserted into the gap between the double-layer plate structure of the barrel portion 121, and the guide protrusion 52 will extend above the guide surface 51 on the outer plate structure.

[0041] like Figure 3 As shown, the enclosure 112 on the face cover 11 is also a double-layer plate structure, and the guide surface 51 is arranged on the plate structure located on the inner side. When the face cover 11, the mounting seat 12 and the driving structure 40 are assembled, the driving structure 40 is first passed through the mounting hole 113 from the upper right to the bottom, and the guide protrusion 52 slightly protrudes from the plate structure located on the inner side of the enclosure 112. When the driving structure 40 is pressed down, the guide protrusion 52 hits the plate structure located on the inner side of the enclosure 112, causing it to be slightly deformed, so that the guide protrusion 52 can pass over the plate structure, and then the guide protrusion 52 is aligned with the guide surface 51 on the face cover 11, and finally the mounting seat 12 is installed under the face cover 11.

[0042] like Figure 4 and Fig. 9As shown, in this embodiment, the mounting seat 12 is a valve seat structure, which also includes a lug portion 122 arranged on the periphery of the barrel portion 121, a bottom plate 123 arranged below the barrel portion 121, and a perforated structure is arranged on the bottom plate 123. The mounting seat 12 also includes a mounting cylinder 124 arranged at the perforated structure and extending downward, and the exhaust rod 20 is inserted through the mounting cylinder 124 and the perforated structure, and the pressure limiting valve 30 is arranged in the space surrounded by the bottom plate 123 and the barrel portion 121. In this embodiment, a guide surface 51 is provided on the original structure of the cover assembly (the face cover 11 and the valve seat structure), and there is no need to additionally set a new structure to form the guide groove 53. Specifically, a hole structure is provided on the lug portion 122 of the mounting seat 12, and a mounting column is provided on the lower surface of the face cover 11. The mounting seat 12 is fixed to the bottom of the face cover 11 by fasteners inserted through the hole structure and the mounting column.

[0043] Of course, in an embodiment not shown in the figure, the guide surface can also be set on the upper surface of the enclosure, so that the mounting seat is a new structure independent of the valve seat structure and is located above the enclosure, and the mounting seat and the enclosure are connected to form a guide groove.

[0044] like Figures 3 to 5 As shown, there are multiple switching components 50, and the multiple switching components 50 are arranged at intervals along the circumferential direction of the pressure limiting valve 30. By providing multiple switching components 50, the cover body 10 supports the driving structure 40 at multiple points, avoiding the drive structure 40 from tilting during the position switching process, so that the drive structure 40 can stably switch positions.

[0045] Specifically, the “plurality” in the above “multiple switching components 50” refers to two or more. In this embodiment, the cover assembly includes three switching components 50 , and the three switching components 50 are arranged at intervals in the circumferential direction of the pressure limiting valve 30 .

[0046] like Figures 6 to 9 As shown, the pressure limiting valve 30 is provided with an outer flange 31, and the driving structure 40 includes a turntable 41 sleeved on the outer periphery of the pressure limiting valve 30, and the turntable 41 is supported below the outer flange 31. The turntable 41 is supported below the outer flange 31. When the turntable 41 moves in the vertical direction, it will drive the pressure limiting valve 30 to move with it, thereby realizing the switching of the working state of the pressure limiting valve 30, which has the advantages of simple structure and reliable driving. Specifically, in this embodiment, the outer flange 31 has a plurality of flange sections and a plurality of upper convex sections arranged at intervals along the circumferential direction, and an upper convex section is arranged between each two adjacent flange sections, so that the user can insert his fingers under the upper convex section to remove the pressure limiting valve 30 when needed, and the lower surface of the flange section is on the same plane and can be matched with the upper surface of the turntable 41.

[0047] like Figure 1 , Figure 2 and Figure 5 As shown, the cover body 10 is provided with a plurality of indicating positions 13, and the driving structure 40 is provided with an indicating convex edge 42. When the pressure limiting valve 30 is in different working states, the indicating convex edge 42 cooperates with different indicating positions 13. A plurality of indicating positions 13 corresponding to the multiple working states of the pressure limiting valve 30 are provided on the cover body 10. When the indicating convex edge 42 cooperates with one of the indicating positions 13, it indicates that the pressure limiting valve 30 is in the working state corresponding to the indicating position 13. The user can judge whether the driving structure 40 has been rotated to the right position according to the positional relationship between the indicating convex edge 42 and the indicating position 13, which is convenient for the user to use.

[0048] In the present embodiment, the pressure limiting valve 30 has three working states. Specifically, the pressure limiting valve 30 includes a first valve body 32 and a second valve body 33 sleeved on the outer periphery of the first valve body 32. The first convex edge 321 and the second convex edge 322 are provided on the outer surface of the first valve body 32. The first convex edge 321 and the second convex edge 322 have a preset interval in the axial direction of the first valve body 32 and the second convex edge 322 is above the first convex edge 321. The third convex edge 331 is provided on the inner surface of the second valve body 33. The third convex edge 331 is located between the first convex edge 321 and the second convex edge 322. The height of the third convex edge 331 is less than the preset interval. The multiple working states include a high-pressure state, a low-pressure state and a pressure-free state. The driving structure 40 can drive the second valve body 33 to move in the vertical direction. When the second valve body 33 moves to the position where the third convex edge 331 abuts and cooperates with the first convex edge 321, the pressure limiting valve 30 is in a high-pressure state ( Figure 7 (a)), when the second valve body 33 moves to a position where the third convex edge 331 is separated from the first convex edge 321 and the second convex edge 322, the pressure limiting valve 30 is in a low pressure state ( Figure 7 (b)), when the second valve body 33 moves to the position where the third convex edge 331 abuts against the second convex edge 322, the pressure limiting valve 30 is in a pressure-free state ( Figure 7(c) status). When the third convex edge 331 is in abutment with the first convex edge 321, the weight of the second valve body 33 is completely pressed on the first valve body 32, and the first valve body 32 is pressed on the exhaust rod 20. At this time, the force applied by the pressure-limiting valve 30 to the exhaust rod 20 is the sum of the weight of the first valve body 32 and the second valve body 33. A large pressure is required in the cooking chamber to push the pressure-limiting valve 30 open, thereby realizing high-pressure cooking. When the third convex edge 331 is separated from the first convex edge 321 and the second convex edge 322, the force applied by the pressure-limiting valve 30 to the exhaust rod 20 is the weight of the first valve body 32. A relatively small pressure in the cooking chamber can push the pressure-limiting valve 30 open, thereby realizing low-pressure cooking. When the third convex edge 331 is in abutment with the second convex edge 322, the weight of the first valve body 32 is pressed on the second valve body 33, and the weight of the second valve body 33 is pressed on the driving structure 40. The first valve body 32 no longer blocks the exhaust rod 20, thereby connecting the inside of the cooking chamber with the outside, thereby realizing pressure-free cooking. By setting the pressure limiting valve 30 as a split structure and respectively setting a first convex edge 321 and a second convex edge 322 on the first valve body 32 and a third convex edge 331 on the second valve body 33, the above-mentioned three-speed pressure regulation is achieved, which has the advantages of simple structure and easy control.

[0049] In this embodiment, the first valve body 32 includes a valve body 323 and a valve cover 324 which are separately arranged. The edge of the valve cover 324 protrudes outward from the valve body 323 to form a second convex edge 322. The first convex edge 321 is arranged on the outer surface of the valve body 323. The second valve body 33 includes a valve body 332 and an outer flange 31 arranged above the valve body 332. The rotary disk 41 is supported below the outer flange 31. The valve body 332 is a cylindrical structure. The third flange 331 is arranged on the inner surface of the valve body 332. The first valve body 32 is arranged as a split structure, which facilitates the assembly of the first valve body 32 and the second valve body 33.

[0050] Specifically, Figure 4 As shown, the plurality of working sections 531 include a high pressure section 5311, a low pressure section 5312 and a pressure-free section 5313 which are sequentially arranged and gradually increased along the circumferential direction of the pressure limiting valve 30. When the guide protrusion 52 cooperates with the high pressure section 5311, the pressure limiting valve 30 is in a high pressure state, when the guide protrusion 52 cooperates with the low pressure section 5312, the pressure limiting valve 30 is in a low pressure state, and when the guide protrusion 52 cooperates with the pressure-free section 5313, the pressure limiting valve 30 is in a pressure-free state. By setting the high pressure section 5311, the low pressure section 5312 and the pressure-free section 5313 to correspond to the high pressure state, the low pressure state and the pressure-free state of the pressure limiting valve 30 respectively, the driving structure 40 is driven to move in the vertical direction through the cooperation between the guide groove 53 and the guide protrusion 52, thereby driving the pressure limiting valve 30 to switch positions, which has the advantage of a simple structure.

[0051] The process of switching the working state of the pressure limiting valve 30 is described below in combination with the corresponding relationship between each working section 531 and each working state of the pressure limiting valve 30:

[0052] When the guide protrusion 52 on the rotating disk 41 slides to the lowest point of the guiding groove 53 (i.e., the high-pressure section 5311), there is a certain gap between the rotating disk 41 and the outer flange 31 of the second valve body 33. At this time, the first valve body 32 and the second valve body 33 are both pressed on the exhaust rod 20, and the two valves are simultaneously pressed up (i.e., the high-pressure state).

[0053] When the guide protrusion 52 on the rotating disk 41 slides to the middle position of the guiding groove 53 (i.e., the low-pressure section 5312), the rotating disk 41 lifts the outer flange 31 of the second valve body 33, so that only the first valve body 32 is pressed on the exhaust rod 20 at this time, and the first valve body 32 is in the pressed-up state;

[0054] When the guide protrusion 52 on the turntable 41 slides to the highest point of the guide groove 53 (i.e., the non-pressure section 5313), the turntable 41 lifts the outer flange 31 of the second valve body 33, so that the entire pressure-limiting valve 30 is not pressed on the exhaust rod 20 at this time, and both valve bodies are in a state where neither is pressed.

[0055] like Figure 8 and Fig. 9 As shown, in this embodiment, the cover assembly further includes a steel cover, the cover body 10 is mounted on the steel cover, the exhaust rod 20 is passed through the steel cover, and the pressure limiting valve 30 is mounted on the exhaust rod 20 .

[0056] In this embodiment, the guide groove 53 is formed by connecting two guide surfaces 51 to guide the guide protrusion 52, so that the drive structure 40 can move in the vertical direction. Of course, in the embodiment not shown in the figure, only one guide surface can be supported below the guide protrusion, for example: only the guide surface is set on the mounting seat but not on the cover; or the multiple indicator positions on the cover are set into a stepped structure, so that the indicator convex edge of the drive structure can also serve as a guide protrusion and can be processed into a more eye-catching shape or color, so that the indicator position and the indicator convex edge can play the role of indication and guidance at the same time.

[0057] In this embodiment, the guide groove 53 includes three working sections 531 and two inclined connecting sections 532, and the pressure limiting valve 30 includes a first valve body 32 and a second valve body 33 arranged in a nested manner, thereby realizing three-speed pressure regulation. In an embodiment not shown in the figure, the pressure limiting valve may also have only one valve body, and the guide groove may include two working sections and one inclined connecting section. When the guide protrusion cooperates with the working section located below, the pressure limiting valve presses on the exhaust rod, which is a high-pressure state; when the guide protrusion cooperates with the working section located above, the pressure limiting valve does not press on the exhaust rod, which is a non-pressure state; an electromagnetic valve is installed on the cover assembly to intermittently lift the pressure limiting valve to realize a low-pressure state. Alternatively, the pressure-limiting valve has two nested valve bodies, and the guide groove includes two working sections and an inclined connecting section. When the guide protrusion cooperates with the working section located below, the two valve bodies are pressed on the exhaust rod, which is a high-pressure state; when the guide protrusion cooperates with the working section located above, only one pressure-limiting valve is pressed on the exhaust rod, which is a low-pressure state; a push button and a lever structure are added to the cover body assembly so that the user can press the push button to make the lever structure swing and lift the entire pressure-limiting valve to achieve a pressure-free state.

[0058] The following combination Figure 8 and Fig. 9 The method of exhausting air by pressing the button 14 and the lever structure 15 is described. Specifically, the button 14 and the pressure limiting valve 30 are respectively arranged at both ends of the lever structure 15 and can abut against the lever structure 15. When in use, the user can press the button 14 to make the pressure limiting valve 30 Figure 8 The left end of the lever structure 15 is pressed down and the right end is tilted, and the right end of the lever structure 15 lifts one side of the pressure limiting valve 30, exposing the exhaust port at the upper end of the exhaust rod 20 for exhaust. When the pressure limiting valve 30 is driven to exhaust by the push button 14 and the lever structure 15, since the pressure limiting valve 30 is lifted to the side and tilted against the exhaust port of the exhaust rod 20, only part of the exhaust port is connected to the outside, the opening of the exhaust port is small, and the exhaust is relatively slow. In addition, since the high-temperature steam is ejected from one side for a long time, the structure of the cover assembly corresponding to the side will age or deform, affecting the service life of this part of the structure; when the switching assembly 50 is used to drive the pressure limiting valve 30 to switch to the pressure-free state for exhaust, the pressure limiting valve 30 can be lifted vertically as a whole, so that the exhaust port of the exhaust rod 20 is in a fully open state, achieving uniform and rapid exhaust of steam, and increasing the steam discharge volume and speed.

[0059] like Figure 8 and Fig. 9 As shown, the present application also provides a cooking utensil, including a cover assembly, wherein the cover assembly is the above-mentioned cover assembly, and the above-mentioned cover assembly can effectively solve the problem in the related technology that the user may miss to install the driving structure and thus affect the subsequent pressure adjustment operation, and the cooking utensil with the above-mentioned cover assembly also has the above-mentioned advantages.

[0060] Specifically, in this embodiment, the cooking utensil is a pressure cooking utensil with a pressure regulating function. Of course, in embodiments not shown in the figure, the cooking utensil can also be a rice cooker, a low-pressure rice cooker, a soybean milk maker, a food processor, a cooking machine, an electric stew pot, a multi-function pot and other products.

[0061] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0062] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0063] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0064] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cover assembly, characterized in that: include: Cover body (10); An exhaust rod (20) is disposed through the cover body (10); A pressure limiting valve (30) is arranged at the upper end of the exhaust rod (20), the pressure limiting valve (30) being movably arranged on the cover body (10) along the vertical direction and having a plurality of working states; A driving structure (40) is rotatably arranged on the cover body (10) and is drivingly matched with the pressure limiting valve (30) to drive the pressure limiting valve (30) to switch between the plurality of working states; A switching assembly (50) comprises a guide groove (53) and a guide protrusion (52) inserted into the guide groove (53) and cooperating with the guide groove (53); one of the guide groove (53) and the guide protrusion (52) is arranged on the cover body (10); the other of the guide groove (53) and the guide protrusion (52) is arranged on the driving structure (40); the guide groove (53) comprises a plurality of working sections (531) and at least one inclined connecting section (532) sequentially arranged along the circumferential direction and the axial direction of the pressure limiting valve (30); each two adjacent working sections (531) are connected by one of the inclined connecting sections (532); when the driving structure (40) rotates, the guide protrusion (52) can cooperate with different working sections (531) so that the driving structure (40) moves along the vertical direction and drives the pressure limiting valve (30) to switch to different working states.

2. The cover assembly according to claim 1, characterized in that: Two groove walls of the guide groove (53) arranged opposite to each other in the vertical direction form two guide surfaces (51); when the guide groove (53) is arranged on the cover body (10) and the guide protrusion (52) is arranged on the drive structure (40), the cover body (10) comprises a cover (11) and a mounting seat (12); one guide surface (51) is arranged on the cover (11), and another guide surface (51) is arranged on the mounting seat (12).

3. The cover assembly according to claim 2, characterized in that: The face cover (11) comprises a cover body (111) and a surrounding plate (112); the cover body (111) is provided with a mounting hole (113); the surrounding plate (112) is arranged at the mounting hole (113); the guide surface (51) on the face cover (11) is arranged on the lower surface of the surrounding plate (112); the mounting seat (12) comprises a cylindrical portion (121) passing through the mounting hole (113); the guide surface (51) on the mounting seat (12) is arranged on the upper surface of the cylindrical portion (121); and the mounting seat (12) is detachably mounted on the face cover (11).

4. The cover assembly according to any one of claims 1 to 3, characterized in that: There are a plurality of switching components (50), and the plurality of switching components (50) are arranged at intervals along the circumferential direction of the pressure limiting valve (30).

5. The cover assembly according to any one of claims 1 to 3, characterized in that: The pressure limiting valve (30) is provided with an outer flange (31), and the driving structure (40) comprises a rotating disk (41) sleeved on the outer periphery of the pressure limiting valve (30), and the rotating disk (41) is supported below the outer flange (31).

6. The cover assembly according to any one of claims 1 to 3, characterized in that: The cover body (10) is provided with a plurality of indicating positions (13), and the driving structure (40) is provided with an indicating convex edge (42); when the pressure limiting valve (30) is in different working states, the indicating convex edge (42) cooperates with different indicating positions (13).

7. The cover assembly according to any one of claims 1 to 3, characterized in that: The pressure-limiting valve (30) comprises a first valve body (32) and a second valve body (33) sleeved on the outer periphery of the first valve body (32); a first convex edge (321) and a second convex edge (322) are arranged on the outer surface of the first valve body (32); the first convex edge (321) and the second convex edge (322) have a preset interval in the axial direction of the first valve body (32) and the second convex edge (322) is above the first convex edge (321); a third convex edge (331) is arranged on the inner surface of the second valve body (33); the third convex edge (331) is located between the first convex edge (321) and the second convex edge (322); the height of the third convex edge (331) is less than the preset interval; and the plurality of working states The driving structure (40) can drive the second valve body (33) to move in the vertical direction. When the second valve body (33) moves to a position where the third convex edge (331) abuts against the first convex edge (321), the pressure-limiting valve (30) is in the high-pressure state. When the second valve body (33) moves to a position where the third convex edge (331) is separated from the first convex edge (321) and the second convex edge (322), the pressure-limiting valve (30) is in the low-pressure state. When the second valve body (33) moves to a position where the third convex edge (331) abuts against the second convex edge (322), the pressure-limiting valve (30) is in the no-pressure state.

8. The cover assembly according to claim 7, characterized in that: The plurality of working sections (531) include a high-pressure section (5311), a low-pressure section (5312) and a no-pressure section (5313) which are sequentially arranged and gradually increased along the circumferential direction of the pressure-limiting valve (30); when the guide protrusion (52) cooperates with the high-pressure section (5311), the pressure-limiting valve (30) is in the high-pressure state; when the guide protrusion (52) cooperates with the low-pressure section (5312), the pressure-limiting valve (30) is in the low-pressure state; and when the guide protrusion (52) cooperates with the no-pressure section (5313), the pressure-limiting valve (30) is in the no-pressure state.

9. The cover assembly according to claim 7, characterized in that: The first valve body (32) comprises a valve main body (323) and a valve cover (324) which are separately arranged. The edge of the valve cover (324) protrudes outward from the valve main body (323) to form the second convex edge (322). The first convex edge (321) is arranged on the outer surface of the valve main body (323).

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

Images