Knob positioning structure

Abstract

The utility model discloses a knob positioning structure, which belongs to the technical field of household appliances and comprises a knob and a knob support, a concave hole is arranged on the knob, an elastic plunger is arranged on the knob support, and the knob is rotatably arranged on the knob support and is in mutual elastic avoidance or locking fit with the elastic plunger through the concave hole during rotation. According to the structure, the elastic movement of the elastic plunger is utilized, so that the elastic plunger can be in mutual elastic avoidance and locking fit with the knob and the concave hole, the knob can be effectively ensured to rotate and can be positioned at the same time, and the defect that the knob in the prior art is in concave-convex positioning fit through interference deformation is overcome; in addition, the elastic plunger can generate certain vibration and sound feedback during elastic work, so that a user can know the rotating position of the knob, and the use experience of the user is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of home appliance technology, specifically a knob positioning structure. Background Technology

[0002] In common household appliances, such as coffee machines, knobs are used to control the electrical system. For example, Chinese utility model patent CN202323119398.4 discloses a knob-type coffee machine controller and coffee machine. To prevent the knob from rotating on its own, existing appliances typically have a protrusion on the knob and a recess on the mating connecting part. The knob and connecting part use interference deformation to achieve a convex-concave positioning, thus limiting the knob's rotation. However, when the product is first used, the interference deformation and convex-concave fit have high stress, requiring the user to apply considerable force to rotate the knob, affecting usability. Furthermore, after prolonged use, the protrusion and recess become worn down, causing the convex-concave positioning to fail, resulting in the knob rotating arbitrarily and failing to maintain its position, leading to poor stability and a short lifespan. Therefore, further improvement is necessary. Utility Model Content

[0003] The present invention aims to provide a knob positioning structure to overcome the shortcomings of the prior art.

[0004] A knob positioning structure designed for this purpose includes a knob and a knob support. The knob has a recessed hole, and the knob support has an elastic plunger. The knob is rotatably mounted on the knob support, and during rotation, it elastically avoids or locks against the elastic plunger through the recessed hole.

[0005] The knob bracket is provided with an assembly hole, and the elastic plunger is installed and removed from the assembly hole.

[0006] The elastic plunger includes a plunger bracket, an elastic element, and a plunger. The plunger bracket is positioned and disassembled on the assembly hole. The elastic element is positioned on the plunger bracket. The plunger elastically extends and retracts on the plunger bracket through the elastic element, and during elastic extension and retraction, it avoids or locks into the concave hole.

[0007] The end of the plunger that elastically expands and contracts on the plunger support is a raised semi-circular shape, and the recessed hole is a recessed semi-circular shape.

[0008] The elastic element is a compression spring, one end of which elastically acts on the plunger bracket, and the other end elastically acts on the plunger. The plunger always elastically extends outward from the plunger bracket through the elastic element.

[0009] A limiting ring is fixedly provided on the knob bracket, a buckle is provided on the knob, and a buckle engagement part is provided on the limiting ring. The knob is fastened to the buckle engagement part by the buckle.

[0010] A limit ring is fixedly installed on the knob bracket, and a buckle is provided on the knob. The limit ring is provided with a buckle engagement part, and the knob is fastened to the buckle engagement part by the buckle.

[0011] An inclined portion is provided between the buckle and the buckle mating portion, and the two are guided and fastened together through the inclined portion.

[0012] The structure also includes a fixed component and a rotating component. The knob bracket is fixedly mounted on the fixed component. The knob bracket is provided with an adapter hole. The rotating component (13) passes through the adapter hole and is fixedly connected to the knob.

[0013] The knob has a plug-in part at its center and a fastening hole on the plug-in part. The rotating part has a plug-in mating part and a fastening mating hole on the plug-in mating part. The plug-in part and the plug-in mating part are plugged into each other. The fastening hole and the fastening mating hole correspond to each other and are fixedly mated by fasteners.

[0014] A decorative piece is also attached to the knob, which covers the fastening hole and the fastener.

[0015] This utility model improves upon the above-mentioned structure by providing a recessed hole on the knob and an elastic plunger on the knob support. When the knob rotates, it acts on the elastic plunger, allowing the elastic plunger to move elastically and elastically avoid the knob, so that the knob can rotate smoothly. When the knob rotates to a certain position, the elastic plunger separates from the knob, elastically resets, and locks itself with the recessed hole to achieve the rotational positioning of the knob, thereby preventing it from rotating on its own.

[0016] In other words, by utilizing the elastic movement of the elastic plunger, it can elastically avoid and lock with the knob and the recess, thereby effectively ensuring that the knob can rotate and be positioned at the same time. This replaces the drawback of the existing knob technology that uses interference deformation for positioning, thereby improving the product's stability and service life. In addition, the elastic plunger can generate a certain amount of vibration and sound feedback when it is working elastically, so that the user knows the rotation position of the knob, which greatly improves the user experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the assembly cross-sectional structure of an embodiment of the present invention.

[0018] Figure 2This is a cross-sectional view of the knob.

[0019] Figure 3 This is a cross-sectional view of the limiting ring.

[0020] Figure 4 This is a cross-sectional view of the elastic plunger when it is in the extended state.

[0021] Figure 5 This is a cross-sectional view of the elastic plunger when it is in a contracted state. Detailed Implementation

[0022] 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.

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] See Figures 1-5 This knob positioning structure includes a knob 1 and a knob support 2. The knob 1 is provided with a recessed hole 3, and the knob support 2 is provided with an elastic plunger 4. The knob 1 is rotatably mounted on the knob support 2, and during rotation, it elastically avoids or locks against the elastic plunger 4 through the recessed hole 3.

[0025] In this embodiment, a recessed hole 3 is provided on the knob 1, and an elastic plunger 4 is provided on the knob support 2. When the knob 1 rotates, it acts on the elastic plunger 4 so that the elastic plunger moves elastically and elastically avoids the knob 1 so that the knob 1 can rotate smoothly. When the knob 1 rotates to a certain position, the elastic plunger 4 separates from the knob 1 and elastically resets, and locks itself with the recessed hole 3 to realize the rotation positioning of the knob 1, thereby preventing it from rotating on its own.

[0026] That is, this embodiment utilizes the elastic movement of the elastic plunger 4 to allow it to elastically avoid and lock with the knob 1 and the recess 3, thereby effectively ensuring that the knob 1 can rotate while also being positioned, replacing the drawbacks of the prior art knob 1's interference deformation and concave-convex positioning fit. This improves the product's stability and service life. In addition, the elastic plunger 4 can generate a certain amount of vibration and sound feedback when working elastically, allowing the user to know the rotation position of the knob 1, greatly improving the user experience.

[0027] The knob bracket 2 is provided with an assembly hole, and the elastic plunger 4 is installed and removed from the assembly hole.

[0028] Specifically, the elastic plunger 4 includes a plunger bracket 5, an elastic element 6, and a plunger 7. The plunger bracket 5 is positioned and disassembled on the assembly hole, the elastic element 6 is positioned on the plunger bracket 5, and the plunger 7 elastically extends and retracts on the plunger bracket 5 through the elastic element 6, and during elastic extension and retraction, it avoids or locks with the concave hole 3.

[0029] In this embodiment, the positioning function of the assembly hole is used to enable the plunger bracket 5 to be positioned and disassembled on the assembly hole. At the same time, the plunger 7 can also elastically extend and retract on the plunger bracket 5 through the elastic force of the elastic element 6, so that the plunger 7 can avoid or lock with the knob 1 and the recess 3.

[0030] In addition, by utilizing the supporting assembly function of the plunger bracket 5, the plunger bracket 5, the elastic element 6, and the plunger 7 can form a modular elastic plunger 4. This modular elastic plunger 4 can be directly disassembled and positioned on the assembly hole, making disassembly and assembly convenient.

[0031] Furthermore, since the elastic plunger 4 is detachable, users can select elastic elements 6 with different elastic forces. When the elastic plunger 4 selects a larger elastic force from the elastic element 6, the knob 1 needs to apply a larger force to rotate; when the elastic plunger 4 selects a smaller elastic force from the elastic element 6, the knob 1 needs to apply a smaller force to rotate, thus meeting the rotation needs of different users for the knob 1.

[0032] The end of the plunger 7 that elastically expands and contracts on the plunger support 5 is a raised semi-circle, and the concave hole 3 is a recessed semi-circle.

[0033] In this embodiment, the protruding semi-circular end of the plunger 7 and the recessed semi-circular hole 3 can both lock together and separate from each other, thereby facilitating the rotation of the knob 1.

[0034] The elastic element 6 is a compression spring. One end of the spring acts elastically on the plunger bracket 5, and the other end acts elastically on the plunger 7. The plunger 7 always extends elastically outward from the plunger bracket 5 through the elastic element 6, thereby ensuring that the plunger 7 is always locked in place with the concave hole 3, thus ensuring the assembly stability of the knob 1.

[0035] A limit ring 8 is fixedly installed on the knob bracket 2, and a buckle 9 is provided on the knob 1. A buckle engagement part 10 is provided on the limit ring 8, and the knob 1 is fastened to the buckle engagement part 10 by the buckle 9.

[0036] In this embodiment, the limiting ring 8 is provided with a connecting hole, and the knob bracket 2 is provided with a connecting mating hole. The connecting hole and the connecting mating hole correspond to each other and are fixedly engaged by a connector. The knob 1 is positioned on the limiting ring 8 by the engagement of the buckle 9 and the buckle mating part 10 to prevent it from coming loose from the limiting ring 8.

[0037] An inclined portion 11 is provided between the buckle 9 and the buckle mating portion 10, and the two are guided and fastened together through the inclined portion 11.

[0038] In this embodiment, the inclined portions 11 are provided at the upper and lower ends of the buckle 9 and the buckle mating portion 10. When the buckle 9 and the buckle mating portion 10 are fastened, they are guided and engaged with each other through the inclined portions 11, which facilitates the fastening between the buckle 9 and the buckle mating portion 10.

[0039] The structure also includes a fixed component 12 and a rotating component 13. The knob bracket 2 is fixedly mounted on the fixed component 12. The knob bracket 2 is provided with an adapter hole. The rotating component 13 passes through the adapter hole and is fixedly connected to the knob 1.

[0040] In this embodiment, when the knob 1 is rotated, it can drive the rotating component 13 to rotate together, while the fixed component 12, the knob bracket 2, and the limiting ring 8 are fixed relative to the knob 1 and the rotating component 13.

[0041] A plug-in part 14 is provided at the center of the knob 1, and a fastening hole 15 is provided on the plug-in part 14. A plug-in mating part 16 is provided on the rotating part 13, and a fastening mating hole is provided on the plug-in mating part 16. The plug-in part 14 and the plug-in mating part 16 are plugged into each other. The fastening hole 15 and the fastening mating hole correspond to each other and are fixedly mated by fasteners 17.

[0042] In this embodiment, the plug-in part 14 and the plug-in mating part 16 are plugged into each other, which can achieve pre-positioning between the knob 1 and the rotating part 13. Then, the fastener 17 is used to fix it on the fastening hole 15 and the fastening mating hole, so that the knob 1 and the rotating part 13 can be fixed.

[0043] To enhance the product's aesthetic appeal, a decorative piece 18 is attached to the knob 1, which covers the fastening hole 15 and the fastener.

[0044] In this embodiment, the surface of the knob 1 is provided with a recess 19, and the decorative piece 18 is attached to the recess 19 with glue or the like, and covers the fastening hole 15 and the fastener.

[0045] In addition, a shielding edge 20 is provided around the knob 1. After assembly, the knob 1 uses the shielding edge 20 to shield at least part of the outer periphery of the knob bracket 2 and the upper outer periphery of the fixing component 12. At the same time, the knob 1 also shields the limiting ring 8, thereby further improving the aesthetic appearance of the product.

[0046] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A knob positioning structure, comprising a knob (1) and a knob support (2), characterized in that: The knob (1) is provided with a recess (3), and the knob bracket (2) is provided with an elastic plunger (4). The knob (1) is rotatably mounted on the knob bracket (2), and when rotated, it elastically avoids or locks with the elastic plunger (4) through the recess (3).

2. The knob positioning structure according to claim 1, characterized in that: The knob bracket (2) is provided with an assembly hole, and the elastic plunger (4) is installed and removed from the assembly hole.

3. The knob positioning structure according to claim 2, characterized in that: The elastic plunger (4) includes a plunger bracket (5), an elastic element (6) and a plunger (7). The plunger bracket (5) is positioned and disassembled on the assembly hole. The elastic element (6) is positioned on the plunger bracket (5). The plunger (7) elastically extends and retracts on the plunger bracket (5) through the elastic element (6) and avoids or locks with the concave hole (3) during elastic extension and retraction.

4. The knob positioning structure according to claim 3, characterized in that: The end of the plunger (7) that elastically expands and contracts on the plunger bracket (5) is a raised semi-circle, and the concave hole (3) is a recessed semi-circle.

5. The knob positioning structure according to claim 3, characterized in that: The elastic element (6) is a compression spring, one end of which acts elastically on the plunger bracket (5), and the other end acts elastically on the plunger (7). The plunger (7) always extends elastically toward the outer end of the plunger bracket (5) through the elastic element (6).

6. The knob positioning structure according to claim 1, characterized in that: A limiting ring (8) is fixedly provided on the knob bracket (2), a buckle (9) is provided on the knob (1), and a buckle engagement part (10) is provided on the limiting ring (8). The knob (1) is fastened to the buckle engagement part (10) by the buckle (9).

7. The knob positioning structure according to claim 6, characterized in that: An inclined portion (11) is provided between the buckle (9) and the buckle mating portion (10), and the two are guided and fastened by the inclined portion (11).

8. The knob positioning structure according to claim 6, characterized in that: It also includes a fixing component (12) and a rotating component (13). The knob bracket (2) is fixedly mounted on the fixing component (12). The knob bracket (2) is provided with a transition hole. The rotating component (13) passes through the transition hole and is fixedly connected to the knob (1).

9. The knob positioning structure according to claim 8, characterized in that: The knob (1) has a plug-in part (14) at its center, and a fastening hole (15) is provided on the plug-in part (14). The rotating part (13) has a plug-in mating part (16), and a fastening mating hole is provided on the plug-in mating part (16). The plug-in part (14) and the plug-in mating part (16) are plugged into each other. The fastening hole (15) and the fastening mating hole correspond to each other and are fixedly mated by fasteners (17).

10. The knob positioning structure according to claim 9, characterized in that: A decorative piece (18) is also attached to the knob (1), which covers the fastening hole (15) and the fastener.

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