Knob structure and cooking equipment
By simplifying the design and material selection of the knob structure, and using a combination of outer shell, embedded bracket and decorative piece, the problems of complex knob structure and high cost are solved, and a low-cost and easy-to-install knob structure is achieved.
Patent Information
- Application Number
- CN202520095253.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-15
AI Technical Summary
The existing knob has a complex structure, a large number of sub-components, and many production processes, resulting in high production and material costs.
The design incorporates a shell, embedded bracket, and decorative pieces. The assembly process is simplified by using snap-fit and slot connections, combined with the design of guide surfaces and guide posts. Aluminum alloy and plastic materials are used to reduce the amount of metal used.
This reduces the difficulty and cost of installing the knob structure, while maintaining the metallic texture and improving assembly efficiency and material utilization.
Smart Images
Figure CN223598174U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of knob, especially to a knob structure and cooking equipment. BACKGROUND
[0002] The knob of the equipment such as cooking range, oven and cooking machine has the requirement of high voltage breakdown resistance, and usually adopts the structure of aluminum alloy body + plastic inlay;
[0003] However, on the one hand, the current knob structure is relatively complex, the number of sub-components is large, the production process is many, and the assembly is difficult, thereby leading to relatively high production cost, on the other hand, the current knob body aluminum alloy material is relatively large, leading to relatively high material cost. SUMMARY
[0004] Therefore, it is necessary to provide a knob structure and cooking equipment with simple structure and assembly and relatively low cost in view of the problem of relatively high cost of the knob structure.
[0005] The application provides a knob structure, which comprises a shell, an inlay support and a decorative sheet, the inlay support is located in the shell and comprises a bottom plate, a center column, a guide column and at least two buckles, the center column, the guide column and the buckle are fixed to the bottom plate;
[0006] The shell is annular and has a clamping groove around itself in the circumferential direction on the inner wall, and the shell inner wall is also provided with a guide portion around itself in the circumferential direction, and the inner wall of the guide portion comprises a plurality of first guide surfaces connected head to tail in the circumferential direction of the shell;
[0007] The outer wall of the guide column comprises a plurality of second guide surfaces connected in sequence in the circumferential direction of the shell, the second guide surface is correspondingly attached to part of the first guide surface, the buckle is clamped with the clamping groove, and the decorative sheet is fixed to the top of the center column and attached to the shell.
[0008] In one embodiment, the width of each first guide surface in the circumferential direction of the shell corresponds to a central angle of the circle less than or equal to 10°.
[0009] In one embodiment, a plurality of guide columns and a plurality of buckles are arranged on the bottom plate, and the guide columns and the buckles are spaced apart and arranged at equal intervals in the circumferential direction of the shell.
[0010] In one embodiment, four guide columns and four buckles are arranged on the bottom plate.
[0011] In one embodiment, the clamping groove is arranged on the inner wall of the guide portion, and the height of the guide column is greater than that of the buckle.
[0012] In one of the embodiments, the guide portion protrudes inwardly from the inner wall of the shell, and the top surface of the bottom plate is flush with the bottom surface of the guide portion.
[0013] In one of the embodiments, the top portion of the shell is provided with an embedding groove, and a gap exists between the bottom wall of the embedding groove and the top surface of the center column. The top surface of the center column is provided with a glue groove. The decorative sheet is flush with the bottom wall of the embedding groove and is glued and fixed with the top surface of the center column.
[0014] In one of the embodiments, the bottom plate is further provided with a first reinforcing rib. One end of the first reinforcing rib is fixed with the guide column, and the other end is fixed with the center column. The top surface of the first reinforcing rib is flush with the top surface of the center column.
[0015] In one of the embodiments, the bottom plate is further provided with a second reinforcing rib. The second reinforcing rib is located between the guide column and the center column and is fixed with the guide column. The top surface of the second reinforcing rib is flush with the top surface of the center column.
[0016] The second aspect of the present application provides a cooking device comprising the above-mentioned rotary knob structure.
[0017] The above-mentioned rotary knob structure is completed by three sub-components of the shell, the embedded bracket and the decorative sheet. The embedded bracket is fixed with the shell by buckling. The decorative sheet is fixed with the center column of the embedded bracket, thereby reducing the number of sub-components and the installation difficulty and cost of the rotary knob structure.
[0018] On this basis, the first guide surface arranged circumferentially on the inner wall of the shell and the second guide surface on the outer wall of the guide column make it unnecessary to consider whether the relative angle between the embedded bracket and the shell is accurately aligned during the insertion of the embedded bracket into the shell. Even if there is an angular deviation, the angle can be automatically adjusted during assembly so as to be matched in place due to the small design angle of the single first guide surface and the small angular deviation. In turn, the assembly difficulty is effectively reduced. After assembly in place, the fitting between the first guide surface and the second guide surface also plays a role in rotation limiting.
[0019] In addition, the shell is made of aluminum alloy or other commonly used metal materials, and the embedded bracket is made of plastic material, so as to reduce the amount of metal material as much as possible, while ensuring that the appearance has a metal texture and reducing the material cost of the rotary knob structure as much as possible. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 FIG. 1 is a perspective view of the rotary knob structure of the present application;
[0021] Figure 2 FIG. 3 is an exploded view of the rotary knob structure of the present application; Figure 1
[0022] Figure 3 for Figure 1 A diagram showing the area behind the hidden decorative piece;
[0023] Figure 4 for Figure 3 A three-dimensional view after being cut open along the frontal view.
[0024] Reference numerals: 10, outer shell; 11, slot; 12, guide part; 12a, first guide surface; 13, embedding groove; 20, embedded bracket; 21, base plate; 22, central column; 22a, adhesive groove; 23, guide column; 23a, second guide surface; 24, buckle; 25, first reinforcing rib; 26, second reinforcing rib; 30, decorative piece. Detailed Implementation
[0025] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0028] In the utility model, unless another definite provision and limitation, the terms "mount", "connect", "fix", and so on should be understood broadly, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication or mutual action relation of two elements, unless another definite limitation.For the ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0029] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium.Moreover, the first feature "above", "above" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature.The first feature "below", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0030] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on the other element or there can be a middle element.When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element.The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only implementation.
[0031] Please refer to Figure 1 , Figure 2 and Figure 3 It is provided that the knob structure comprises a shell 10, an embedded support 20 and a decorative sheet 30, the embedded support 20 is located in the shell 10 and comprises a bottom plate 21, a center column 22, a guide column 23 and at least two buckles 24, the center column 22, the guide column 23 and the buckle 24 are all fixed to the bottom plate 21;The shell 10 is annular and the inner wall is provided with a clamping groove 11 surrounding itself in the circumferential direction, the inner wall of the shell 10 is further provided with a guide portion 12 surrounding itself in the circumferential direction, the inner wall of the guide portion 12 comprises a plurality of first guide surfaces 12a connected head to tail in the circumferential direction of the shell 10;The outer wall of the guide column 23 comprises a plurality of second guide surfaces 23a connected in turn in the circumferential direction of the shell 10, the second guide surface 23a corresponds to and is attached to part of the first guide surface 12a, the buckle 24 is clamped with the clamping groove 11, and the decorative sheet 30 is fixed to the top of the center column 22 and attached to the shell 10.
[0032] In the present application, the installation of the knob is completed by three sub-components of the shell 10, the embedded support 20 and the decorative sheet 30, wherein the embedded support 20 is fixedly connected with the shell 10 through the buckle 24, and the decorative sheet 30 is fixed with the center column 22 of the embedded support 20, thereby reducing the number of sub-components and the installation difficulty and cost of the knob structure.
[0033] On this basis, the first guide surface 12a circumferentially arranged on the inner wall of the shell 10 and the second guide surface 23a on the outer wall of the guide column 23 are arranged, so that during the insertion of the embedded support 20 into the shell 10, it is not necessary to consider whether the relative angle between the two is accurately aligned, even if there is an angular deviation, due to the small design angle of the single first guide surface 12a and the small angular deviation, the angle can be automatically adjusted during assembly, so that the angle is matched in place, thereby effectively reducing the assembly difficulty, and the annular clamping groove 11 can ensure that the buckle 24 can be inserted into the clamping groove 11 and completed clamping regardless of the relative angle of the embedded support 20 and the shell 10 during the insertion and assembly. After assembly, the fit between the first guide surface 12a and the second guide surface 23a can also play a role in rotation limiting.
[0034] In addition, the shell 10 is made of aluminum alloy or other commonly used metal materials, and the embedded support 20 is made of plastic material, so as to reduce the amount of metal material as much as possible, while ensuring that the appearance has a metal texture, and as much as possible to reduce the material cost of the knob structure of the present application.
[0035] Specifically, the center column 22 is located at the center position of the bottom plate 21 to ensure stable fixation of the decorative sheet 30.
[0036] In some embodiments, the width of each first guide surface 12a along the circumferential direction of the shell 10 corresponds to a central angle of the circle of 10° or less, and the width of each second guide surface 23a along the circumferential direction of the shell 10 corresponds to a central angle of the circle which is the same as that of the first guide surface 12a.
[0037] It is not difficult to understand that the larger the central angle corresponding to the first guide surface 12a, the greater the angular deviation that may exist between the embedded support 20 and the shell 10 during assembly, and the weaker the ability of the two to automatically rotate and adjust the angle during assembly. By controlling the central angle corresponding to the first guide surface 12a to be 10° or less, the embedded support 20 and the shell 10 can be smoothly assembled during assembly.
[0038] Of course, if the central angle corresponding to the first guide surface 12a is too small, it will lead to greater processing difficulty and cost, and may affect the rotation limiting effect after assembly. Preferably, the width of each first guide surface 12a along the circumferential direction of the shell 10 corresponds to a central angle of the circle of 10°.
[0039] Please refer to Figure 2 andFigure 3 As shown in some embodiments, a plurality of guide posts 23 and a plurality of buckles 24 are arranged on the bottom plate 21, and the guide posts 23 and the buckles 24 are arranged at equal intervals along the circumferential direction of the shell 10.
[0040] The guide posts 23 arranged at equal intervals along the circumferential direction can ensure that the inner-embedded support 20 is uniformly stressed when being inserted into the shell 10, thereby relatively rotating between the two more stably, and the buckles 24 arranged at equal intervals along the circumferential direction can ensure stable and reliable clamping.
[0041] Preferably, in some embodiments, four guide posts 23 and four buckles 24 are arranged on the bottom plate 21.
[0042] Please refer to Figure 1 and Figure 2 As shown in some embodiments, the clamping groove 11 is arranged on the inner wall of the guide portion 12, and the height of the guide post 23 is greater than that of the buckle 24.
[0043] In this way, during the process of installing the inner-embedded support 20 into the shell 10, the guide post 23 will first contact the guide portion 12 and automatically rotate to fine-tune the angle, thereby forming a sliding connection between the first guide surface 12a and the second guide surface 23a, and then the buckle 24 is clamped into the clamping groove 11; through the sliding connection between the first guide surface 12a and the second guide surface 23a, the inner-embedded support 20 is limited along the circumferential direction with the shell 10 before clamping, thereby facilitating the clamping between the buckle 24 and the clamping groove 11, and achieving the effect of reducing the installation difficulty.
[0044] Please refer to Figure 2 and Figure 4 As shown in some embodiments, the guide portion 12 protrudes inwardly from the inner wall of the shell 10, and the top surface of the bottom plate 21 is attached to the bottom surface of the guide portion 12.
[0045] Through the mutual top of the top surface of the bottom plate 21 and the bottom surface of the guide portion 12, a limiting effect along the axial direction of the shell 10 can be achieved.
[0046] Specifically, the buckle 24 and the guide post 23 are both provided with a gap from the edge of the top surface of the bottom plate 21, so that the attachment surface of the top surface of the bottom plate 21 and the bottom surface of the guide portion 12 is annular, thereby ensuring that the stress at each position is uniform when the inner-embedded support 20 is installed in place, and the flatness is high.
[0047] More specifically, the bottom end of the inner wall of the shell 10 is formed with a chamfer, so as to facilitate the installation of the inner-embedded support 20 into the shell 10.
[0048] Please refer to Figure 2 , Figure 3 and Figure 4As shown, in some embodiments, the top of the shell 10 is provided with an embedding groove 13, and there is a gap between the bottom wall of the embedding groove 13 and the top surface of the center column 22. The top surface of the center column 22 is provided with a glue containing groove, and the decorative sheet 30 is attached to the bottom wall of the embedding groove 13 and is fixed by glue.
[0049] Due to the existence of the glue containing groove 22a, the glue liquid will first fill the glue containing groove 22a and then overflow outward, so as to ensure the glue area and the thickness of the glue layer, and to improve the adhesion between the decorative sheet 30 and the center column. The gap between the bottom wall of the embedding groove 13 and the top surface of the center column 22 allows the excess glue liquid to overflow along the gap between the decorative sheet 30 and the top surface of the center column 22, so as to ensure that the decorative sheet 30 can be attached to the bottom wall of the embedding groove 13.
[0050] Specifically, the decorative sheet 30 and the center column 22 are fixed by silicone glue.
[0051] Please refer to Figure 3 and Figure 4 As shown, in some embodiments, the bottom plate 21 is further fixed with a first reinforcing rib 25, one end of the first reinforcing rib 25 is fixed with the guide column 23, and the other end is fixed with the center column 22. The top surface of the first reinforcing rib 25 is flush with the top surface of the center column 22. The bottom plate 21 is further fixed with a second reinforcing rib 26, the second reinforcing rib 26 is located between the guide column 23 and the center column 22 and is fixed with the guide column 23. The top surface of the second reinforcing rib 26 is flush with the top surface of the center column 22.
[0052] The existence of the first reinforcing rib 25 and the second reinforcing rib 26 can improve the structural strength of the embedded bracket 20, and can also increase the support area and the glue area of the embedded bracket 20 to the decorative sheet 30, so as to improve the installation flatness and the adhesion reliability of the decorative sheet 30, and to ensure that the decorative sheet 30 can be firmly attached from the inside to the outside, and to prevent the edge of the decorative sheet 30 from being warped.
[0053] Specifically, the top surface of the center column 22, the top surface of the first reinforcing rib 25 and the top surface of the second reinforcing rib 26 are higher than the top surface of the guide column 23, so that when the glue liquid of the above glue point overflows, the glue liquid cannot overflow into the embedding groove 13 through the top surface of the guide column 23, thereby ensuring the installation flatness of the decorative sheet 30.
[0054] More specifically, each guide column 23 is fixedly connected with two second reinforcing ribs 26, the first reinforcing rib 25 is fixed at the middle position of the inner wall of the guide column 23 in the circumferential direction, and the two second reinforcing ribs 26 are located on both sides of the first reinforcing rib 25 in the circumferential direction and are respectively fixed at both ends of the inner wall of the guide column 23 in the circumferential direction.
[0055] The second aspect of the present application provides a cooking device comprising the above-mentioned rotary knob structure.
[0056] Any combination of the technical features in the above-described embodiments can be made, and for the sake of brevity, not all possible combinations are described, however, as long as the combination of the technical features does not exist in contradiction, it shall be considered as within the scope of the present disclosure.
[0057] The above-described embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it shall not be understood as a limitation on the scope of the present application patent. It should be pointed out that, for ordinary skilled in the art, under the premise of not departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent shall be subject to the appended claims.
Claims
1. A knob structure characterized by, The application relates to a rotary knob structure, which comprises a shell (10), an embedded support (20) and a decorative sheet (30), wherein the embedded support (20) is located in the shell (10) and comprises a bottom plate (21), a center column (22), a guide column (23) and at least two buckles (24), and the center column (22), the guide column (23) and the buckles (24) are all fixed to the bottom plate (21). The shell (10) is annular, and the inner wall of the shell (10) is provided with a clamping groove (11) which surrounds the shell (10) in the circumferential direction, and the inner wall of the shell (10) is further provided with a guide portion (12) which surrounds the shell (10) in the circumferential direction, and the inner wall of the guide portion (12) comprises a plurality of first guide surfaces (12a) which are connected end to end in the circumferential direction of the shell (10). The outer wall of the guide column (23) comprises a plurality of second guide surfaces (23a) which are connected in sequence in the circumferential direction of the shell (10), the second guide surfaces (23a) correspondingly abut part of the first guide surfaces (12a), the buckles (24) are clamped with the clamping groove (11), and the decorative sheet (30) is fixed to the top of the center column (22) and abuts the shell (10).
2. The knob structure according to claim 1, wherein The width of each first guide surface (12a) in the circumferential direction of the shell (10) corresponds to a central angle of the circle which is less than or equal to 10 degrees.
3. The knob structure of claim 1, wherein The bottom plate (21) is provided with a plurality of guide columns (23) and a plurality of buckles (24), and the guide columns (23) and the buckles (24) are spaced apart and arranged at equal intervals in the circumferential direction of the shell (10).
4. The knob structure according to claim 3, wherein The bottom plate (21) is provided with four guide columns (23) and four buckles (24).
5. The knob structure of claim 1, wherein The clamping groove (11) is formed in the inner wall of the guide portion (12), and the height of the guide column (23) is greater than that of the buckle (24).
6. The knob structure of claim 1, wherein The guide portion (12) protrudes inwardly from the inner wall of the shell (10), and the top surface of the bottom plate (21) abuts the bottom surface of the guide portion (12).
7. The knob structure of claim 1, wherein The top of the shell (10) is provided with an embedding groove (13), and there is a spacing between the bottom wall of the embedding groove (13) and the top surface of the center column (22), the top surface of the center column (22) is provided with a glue containing groove (22a), and the decorative sheet (30) abuts the bottom wall of the embedding groove (13) and is fixed by glue to the top surface of the center column (22).
8. The knob structure of claim 3, wherein The bottom plate (21) is further fixed with a first reinforcing rib (25), one end of the first reinforcing rib (25) is fixed to the guide column (23), the other end is fixed to the center column (22), and the top surface of the first reinforcing rib (25) is flush with the top surface of the center column (22).
9. The knob structure of claim 3, wherein The bottom plate (21) is further fixed with a second reinforcing rib (26), the second reinforcing rib (26) is located between the guide column (23) and the center column (22) and is fixed to the guide column (23), and the top surface of the second reinforcing rib (26) is flush with the top surface of the center column (22).
10. A cooking apparatus, characterized by, The application further relates to a rotary knob structure comprising the rotary knob structure as claimed in any one of claims 1-9.