Knob structure and cooking utensil comprising same

By introducing elastic elements and limiting flanges into the knob structure of cooking appliances, the problems of loose knobs and poor feel have been solved, achieving stable knob connection and excellent operating experience.

CN223941287UActive Publication Date: 2026-02-24BEAR ELECTRICAL APPLIANCE CO LTD +1
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Patent Information

Application Number
CN202520555495.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-02-24
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

The knob structure of existing cooking appliances is prone to loosening after assembly and has a poor feel when turning.

Method used

An elastic element is introduced into the knob structure to apply a force along the first direction to the connecting rod, ensuring a stable connection between the knob and the connecting rod. Stability and assembly accuracy are enhanced by structures such as limiting flanges, locking blocks, and fasteners.

Benefits of technology

This design prevents the knob from loosening, improves the accuracy and stability of knob operation, optimizes the feel of rotation, and enhances the overall stability and adaptability of the knob structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a knob structure and a cooking utensil comprising the same. The knob structure comprises: a housing having a mounting side wall; the knob piece is rotationally connected to the mounting side wall; the connecting rod piece is connected to the rotary knob piece and synchronously rotates along with the rotary knob piece, and the rotary knob piece and the connecting rod piece are oppositely arranged on the two sides of the mounting side wall respectively; the triggering piece is arranged on the connecting rod piece; the elastic piece is arranged between the mounting side wall and the connecting rod piece, the elastic piece is configured to apply force to the connecting rod piece in the first direction, and the first direction is the direction from the rotary knob piece to the connecting rod piece. Therefore, the knob piece is subjected to an acting force towards the inside of the shell, good friction exists between the knob piece and the mounting side plate, the aim of preventing the knob piece from loosening is achieved, the knob piece cannot rebound or loosen when rotating to any position, the accuracy of the indication mark is improved, and in addition, the knob piece is convenient to use. And the rotation hand feeling of the knob piece is optimized due to the existence of the elastic piece, so that a user can feel more stable rotation experience during operation.
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Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a knob structure and a cooking appliance including the knob. Background Technology

[0002] Existing knob structures in cooking appliances typically include a housing, a knob component, a connecting rod, and a trigger component. The housing has a mounting sidewall, the knob component is rotatably mounted on the mounting sidewall, the connecting rod is connected to the knob component and rotates synchronously with it, and the knob component and connecting rod are respectively positioned opposite each other on both sides of the mounting sidewall. The trigger component is mounted on the connecting rod and is connected to the thermostat of the cooking appliance. By rotating the knob component, the connecting rod can be rotated to change the position of the trigger component, thereby triggering the thermostat. However, existing knob components have problems such as play, easy loosening, and poor rotation feel after assembly. Utility Model Content

[0003] In order to overcome at least one of the defects of the prior art, the present invention provides a knob structure and a cooking appliance including the knob. By setting an elastic element between the mounting side wall and the connecting rod, stable support is achieved for the connecting rod and the knob to prevent loosening, while improving the feel of rotation.

[0004] The technical solution adopted by this utility model to solve its problem is:

[0005] A knob structure for a cooking utensil includes: a housing having a mounting sidewall; a knob rotatably connected to the mounting sidewall; a linkage connected to the knob and rotating synchronously with it, the knob and linkage being disposed opposite each other on opposite sides of the mounting sidewall; a trigger member disposed on the linkage; and an elastic member disposed between the mounting sidewall and the linkage, the elastic member being configured to apply a force to the linkage in a first direction, the first direction being from the knob to the linkage.

[0006] According to some embodiments of the present invention, the connecting rod is provided with a mounting groove extending along the first direction, and the trigger is connected to the mounting groove and can move along the mounting groove.

[0007] According to some embodiments of the present invention, a limiting flange is provided on the periphery of the connecting rod, one end of the elastic member abuts against the mounting sidewall, and the other end abuts against the limiting flange.

[0008] According to some embodiments of the present invention, the knob is provided with a rotating shaft, the mounting sidewall is provided with a mounting hole, and the rotating shaft is rotatably disposed in the mounting hole.

[0009] According to some embodiments of the present invention, the rotating shaft is provided with a first locking block, and the connecting rod is provided with a second locking block, the first locking block and the second locking block being engaged with each other.

[0010] According to some embodiments of the present invention, the first card block and the second card block are both semi-circular in cross-section perpendicular to the axis of rotation.

[0011] According to some embodiments of the present invention, the knob structure further includes a fastener, which is inserted into the first locking block and the second locking block.

[0012] According to some embodiments of this utility model, the mounting sidewall is an arc-shaped sidewall, and the arc-shaped sidewall protrudes to provide a mounting platform, with the sidewall of the knob fitting against the mounting platform.

[0013] According to some embodiments of this utility model, the elastic element is a spring.

[0014] Additionally, cooking appliances, including the knob structure described above.

[0015] In summary, the knob structure and cooking appliance including it provided by this utility model have at least the following technical effects:

[0016] Because the knob and the connecting rod are connected, the force exerted by the elastic element on the connecting rod is transmitted to the knob. The knob is then subjected to a force that acts inward into the housing, resulting in good friction between the knob and the mounting side plate. This prevents the knob from loosening. Furthermore, the knob will not spring back or loosen when rotated to any position, thus increasing the accuracy of the indication. In addition, the presence of the elastic element optimizes the feel of the knob's rotation, allowing users to experience a more stable rotation during operation. Attached Figure Description

[0017] Figure 1 This is a cross-sectional structural diagram of the cooking appliance according to an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0019] Figure 3 This is a top view of the knob structure assembled in a cooking appliance according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the knob component according to an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the connecting rod in an embodiment of the present utility model;

[0022] Figure 6 This is a schematic diagram of the shell structure according to an embodiment of the present utility model.

[0023] The meanings of the reference numerals in the attached figures are as follows:

[0024] 1. Housing; 11. Mounting sidewall; 111. Mounting hole; 112. Mounting platform; 2. Knob; 21. Rotating shaft; 211. First locking block; 3. Connecting rod; 31. Mounting groove; 32. Limiting flange; 33. Second locking block; 4. Trigger; 5. Elastic element; 6. Fastener; 7. Temperature controller. Detailed Implementation

[0025] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] Please see Figures 1 to 6 This embodiment also discloses a knob structure for a cooking utensil, including a housing 1, a knob 2, a connecting rod 3, an elastic element 5, and a trigger element 4; the housing 1 has a mounting sidewall 11; the knob 2 is rotatably connected to the mounting sidewall 11; the connecting rod 3 is connected to the knob 2 and rotates synchronously with the knob 2, the knob 2 and the connecting rod 3 are respectively disposed opposite to each other on both sides of the mounting sidewall 11; the trigger element 4 is disposed on the connecting rod 3; the elastic element 5 is disposed between the mounting sidewall 11 and the connecting rod 3, and the elastic element 5 is configured to apply a force to the connecting rod 3 in a first direction, the first direction being the direction from the knob 2 to the connecting rod 3.

[0030] like Figure 3As shown, specifically in this embodiment, the trigger 4 is used to connect with the thermostat 7 of the cooking appliance, and can drive the connecting rod 3 to rotate to change the position of the trigger 4, thereby achieving the purpose of triggering the thermostat 7.

[0031] Specifically, in this embodiment, the first direction can be referenced. Figure 2 In the e1 direction.

[0032] The knob structure disclosed in this embodiment, since the knob 2 and the connecting rod 3 are connected, the force exerted by the elastic element 5 on the connecting rod 3 is transmitted to the knob 2. The knob 2 will be subjected to a force towards the inside of the housing 1, so that there is good friction between the knob 2 and the mounting side plate, thereby achieving the purpose of preventing the knob 2 from becoming loose. Furthermore, when the knob 2 is rotated to any position, it will not rebound or become loose, thereby increasing the accuracy of the indication. In addition, the presence of the elastic element 5 also optimizes the rotation feel of the knob 2, allowing the user to experience a more stable rotation experience during operation.

[0033] like Figure 1 and Figure 2 As shown, preferably, in this embodiment, the connecting rod 3 is provided with a mounting groove 31 extending along the first direction. The trigger 4 is connected to the mounting groove 31 and can move along the mounting groove 31 to adjust the installation position. Thus, the introduction of the mounting groove 31 allows the trigger 4 to move freely within the mounting groove 31, thereby enabling fine-tuning of the trigger 4's position according to actual needs. This avoids the problem of the trigger 4 not being properly installed due to the presence of the elastic element 5. Furthermore, this flexibility not only facilitates precise positioning of the trigger 4 during design and production but also allows the knob structure to be adapted to more types of cooking appliance thermostats 7, improving the product's versatility and adaptability.

[0034] like Figure 2 and Figure 3As shown, preferably, in this embodiment, a limiting flange 32 is provided on the periphery of the connecting rod 3, and one end of the elastic member 5 abuts against the mounting sidewall 11, while the other end abuts against the limiting flange 32. Thus, on the one hand, the limiting flange 32 provides a stable support point for the elastic member 5, ensuring that the elastic member 5 can be evenly stressed between the mounting sidewall 11 and the connecting rod 3, effectively preventing the elastic member 5 from shifting or deforming. Furthermore, by precisely designing the position and shape of the limiting flange 32, the distribution of elastic force generated by the elastic member 5 on the connecting rod 3 can be optimized. This helps ensure that the knob 2 receives a uniform and stable elastic force during rotation, reducing the problem of knob loosening or difficult rotation caused by uneven elastic force, and improving the user experience. On the other hand... On the one hand, the introduction of the limiting flange 32 simplifies the assembly process of the knob structure. During assembly, only one end of the elastic element 5 needs to be fixed to the mounting side wall 11, and the other end needs to be abutted against the limiting flange 32. No additional fixing device or complicated adjustment steps are required, which not only improves assembly efficiency but also reduces production costs. In addition, as part of the connecting rod 3, the limiting flange 32 increases the overall structural strength of the connecting rod 3. Under long-term use or when subjected to large external forces, the limiting flange 32 can effectively resist deformation or damage, thus extending the service life of the knob structure.

[0035] like Figure 2 , Figure 4 and Figure 6 As shown, preferably, in this embodiment, the knob 2 has a protruding rotating shaft 21, and the mounting sidewall 11 has a mounting hole 111, with the rotating shaft 21 rotatably disposed in the mounting hole 111. Thus, on the one hand, the fitting design of the rotating shaft 21 and the mounting hole 111 ensures the stability of the knob 2 during rotation. The precise dimensions and shape of the rotating shaft 21, in close fit with the mounting hole 111, reduce friction and wobbling during rotation, allowing the knob 2 to rotate smoothly and stably, improving the user's tactile experience. On the other hand, the design of the rotating shaft 21 and the mounting hole 111 facilitates precise assembly. During manufacturing, the dimensions and shape of the rotating shaft 21 and the mounting hole 111 can be precisely machined to ensure a tight fit between them. This high-precision assembly helps reduce assembly errors and improves the overall stability and reliability of the knob structure.

[0036] like Figure 4 and Figure 5As shown, preferably, in this embodiment, the rotating shaft 21 is provided with a first locking block 211, and the connecting rod 3 is provided with a second locking block 33, with the first locking block 211 and the second locking block 33 engaging with each other. Thus, on the one hand, the engaging design of the first locking block 211 and the second locking block 33 ensures a stable connection between the knob 2 and the connecting rod 3. This connection method is not only robust and reliable, but also effectively prevents relative displacement or loosening of the knob 2 and the connecting rod 3 during rotation, thereby improving the overall stability of the knob structure. On the other hand, the engaging design simplifies the assembly process of the knob 2 and the connecting rod 3. During assembly, simply align the rotating shaft 21 with the mounting hole 111 and rotate the knob 2 to engage the first locking block 211 and the second locking block 33. This assembly method not only improves assembly efficiency but also helps ensure assembly accuracy and reduces assembly errors.

[0037] like Figure 4 and Figure 5 As shown, preferably, in this embodiment, both the first locking block 211 and the second locking block 33 have semi-circular cross-sections perpendicular to the axial direction of the rotating shaft 21. This semi-circular cross-section design allows the first locking block 211 and the second locking block 33 to form a tight fit during engagement, thereby enhancing engagement stability. This design helps prevent relative displacement between the knob 2 and the connecting rod 3 due to external forces during rotation, ensuring a secure connection of the knob structure. Furthermore, the semi-circular cross-section simplifies the assembly process. During assembly, simply align the first locking block 211 on the rotating shaft 21 with the second locking block 33 on the connecting rod 3, and gently rotate the knob 2 to achieve smooth engagement. This assembly method not only improves assembly efficiency but also reduces friction and wear during assembly, extending the service life of the knob structure.

[0038] like Figure 2 As shown, preferably, in this embodiment, the knob structure further includes a fastener 6, which is inserted into the first locking block 211 and the second locking block 33. Thus, the addition of the fastener 6 greatly enhances the connection strength between the first locking block 211 and the second locking block 33, ensuring the absolute stability of the knob 2 and the connecting rod 3 during rotation. This effectively prevents the locking blocks from loosening or falling off due to vibration or external force, thereby improving the overall stability and reliability of the knob structure. Furthermore, as an additional fixing method, the fastener 6 effectively prevents the knob 2 and the connecting rod 3 from separating under unexpected circumstances (such as severe vibration or impact), ensuring the safe operation of the cooking appliance under extreme conditions and reducing potential risks caused by knob structure failure.

[0039] Preferably, in this embodiment, the fastener 6 is a screw. As a common type of fastener, the screw has high strength and stable connection performance. Using the screw as the connector between the first locking block 211 and the second locking block 33 in the knob structure can ensure a firm connection between the two and effectively prevent loosening or falling off due to external force during rotation. Furthermore, the installation and removal process of the screw is relatively simple and can be easily completed with tools such as screwdrivers. This greatly reduces the assembly and maintenance difficulty of the knob structure and improves work efficiency.

[0040] like Figure 2 , Figure 3 and Figure 6 As shown, preferably, in this embodiment, the mounting sidewall 11 is an arc-shaped sidewall, and a mounting platform 112 is provided protruding from the arc-shaped sidewall. The mounting hole 111 extends through the mounting platform 112, and the sidewall of the knob 2 is fitted to the mounting platform 112. Thus, on the one hand, the mounting platform 112 provides a precise assembly reference for the knob 2, allowing the sidewall of the knob 2 to fit tightly against the mounting platform 112, ensuring accurate alignment between the knob 2 and the mounting sidewall 11, thereby improving assembly accuracy. On the other hand, the mounting platform 112 increases the contact area between the knob 2 and the housing 1, providing more stable support. This helps prevent the knob 2 from shaking or shifting due to uneven force during rotation, enhancing the overall stability of the knob structure. Furthermore, the design of the arc-shaped sidewall and the mounting platform 112 not only meets functional requirements but also enhances the product's aesthetics. This design makes the knob structure more compact and streamlined, more harmonious with the overall style of the cooking appliance, and enhances the product's visual appeal.

[0041] like Figure 2 As shown, preferably, in this embodiment, the elastic element 5 is a spring. Thus, as a common elastic element, the spring has stable elastic force and restoring properties. Using it as the elastic element 5 in the knob structure ensures that the knob 2 maintains a certain elastic force and feedback force during rotation, improving the accuracy and comfort of user operation. Furthermore, the size, shape, and material of the spring can be selected and adjusted according to actual needs to adapt to different knob structures and assembly requirements. This design flexibility makes the spring an ideal choice for the elastic element 5 in the knob structure.

[0042] It should be noted that in some other embodiments, the elastic element 5 may also be made of silicone or rubber, depending on the actual needs.

[0043] In addition, this embodiment also provides a cooking appliance including the knob structure described above, which has all the advantages of the knob structure described above.

[0044] In summary, the knob structure and cooking appliance including it disclosed in this utility model can bring at least the following beneficial technical effects:

[0045] 1) The knob 2 will be subjected to a force that acts into the housing 1, which will result in good friction between the knob 2 and the mounting side plate, thereby achieving the purpose of preventing the knob 2 from loosening. Furthermore, the knob 2 will not spring back or loosen when rotated to any position, thereby increasing the accuracy of the indicator.

[0046] 2) The presence of the elastic element 5 optimizes the rotation feel of the knob 2, allowing users to experience a more stable rotation experience during operation;

[0047] 3) The introduction of the mounting slot 31 allows the trigger 4 to move freely within the mounting slot 31, and the position of the trigger 4 can be finely adjusted according to actual needs, thereby avoiding the problem of the trigger 4 not being installed properly due to the presence of the elastic element 5.

[0048] 4) The setting of the limiting flange 32 provides a stable support point for the elastic element 5, ensuring that the elastic element 5 can be evenly stressed between the mounting side wall 11 and the connecting rod 3, effectively preventing the elastic element 5 from shifting or deforming.

[0049] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A knob structure for cooking utensils, characterized in that, include: The housing (1) has a mounting sidewall (11); A knob (2) is rotatably connected to the mounting sidewall (11); A connecting rod (3) is connected to the knob (2) and rotates synchronously with the knob (2). The knob (2) and the connecting rod (3) are respectively disposed on opposite sides of the mounting sidewall (11). A trigger element (4) is disposed on the connecting rod element (3); An elastic element (5) is disposed between the mounting sidewall (11) and the connecting rod (3), the elastic element (5) being configured to apply a force to the connecting rod (3) in a first direction, the first direction being the direction from the knob (2) to the connecting rod (3).

2. The knob structure according to claim 1, characterized in that, The connecting rod (3) is provided with a mounting groove (31) extending along the first direction, and the trigger (4) is connected to the mounting groove (31) and can move along the mounting groove (31).

3. The knob structure according to claim 1, characterized in that, The connecting rod (3) is provided with a limiting flange (32) on its periphery. One end of the elastic member (5) abuts against the mounting sidewall (11), and the other end abuts against the limiting flange (32).

4. The knob structure according to claim 1, characterized in that, The knob (2) has a protruding pivot (21), and the mounting sidewall (11) has a mounting hole (111). The pivot (21) is rotatably mounted in the mounting hole (111).

5. The knob structure according to claim 4, characterized in that, The rotating shaft (21) is provided with a first locking block (211), and the connecting rod (3) is provided with a second locking block (33). The first locking block (211) and the second locking block (33) are engaged with each other.

6. The knob structure according to claim 5, characterized in that, The first card block (211) and the second card block (33) are both semi-circular in cross section perpendicular to the axis of rotation (21).

7. The knob structure according to claim 6, characterized in that, The knob structure also includes a fastener (6), which is inserted into the first locking block (211) and the second locking block (33).

8. The knob structure according to any one of claims 1-7, characterized in that, The mounting sidewall (11) is an arc-shaped sidewall, and the arc-shaped sidewall is provided with a mounting platform (112) protruding from it. The sidewall of the knob (2) is fitted onto the mounting platform (112).

9. The knob structure according to any one of claims 1-7, characterized in that, The elastic element (5) is a spring.

10. A cooking utensil, characterized in that, Includes the knob structure as described in any one of claims 1-9.