Electric toothbrush with knob
By designing a knob structure on the electric toothbrush, and utilizing a combination of a rotating ring, a magnet, and a Hall sensor, the problem of tedious button operation is solved, providing a more novel and accurate control experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING JIKE TECHNOLOGY CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-08
AI Technical Summary
The button operation of existing electric toothbrushes is too conventional and lacks novelty, making daily use boring.
It adopts a knob structure, which replaces button operation by combining a rotating ring, magnet and Hall sensor, and provides gear sensing by combining the elastic limit of the movable spring and the slot.
It achieves a more innovative and accurate operating experience, thus enhancing the user experience.
Smart Images

Figure CN224206922U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric toothbrush technology, and in particular to an electric toothbrush with a knob. Background Technology
[0002] Electric toothbrushes use the rapid rotation or vibration of a motor to create high-frequency vibrations in the brush head, instantly breaking down toothpaste into fine foam that deeply cleans between teeth. At the same time, the vibration of the bristles promotes blood circulation in the mouth and has a massaging effect on the gum tissue, making them widely used in daily life.
[0003] Currently, most electric toothbrushes activate their functions via buttons, which is too conventional and lacks novelty for consumers, making daily use quite boring.
[0004] Therefore, it is necessary to optimize and upgrade the structure of the buttons on electric toothbrushes. Utility Model Content
[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an electric toothbrush with a knob.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An electric toothbrush with a knob includes an electric toothbrush body and a rotating ring. The electric toothbrush body has a mounting position, and the rotating ring is rotatably mounted on the mounting position. The rotating ring has at least one magnet, and its inner ring has at least two slots. A spring clip bracket is fixedly mounted on the mounting position. The spring clip bracket has at least one movable spring clip, which is connected to the spring clip bracket at one end, with the other ends suspended. The outer end face of the movable spring clip has outwardly protruding dots. The electric toothbrush body has a built-in circuit board, and at least one Hall sensor is located at the mounting position. The Hall sensor is electrically connected to the circuit board.
[0008] As the rotating ring rotates, the protrusions are selectively embedded in a single slot, and the moved magnet and the Hall sensor form a magnetic field change sensing.
[0009] Preferably, the mounting position is an annular groove, and the rotating ring is fitted into the mounting position so that the rotating ring can rotate freely within the mounting position.
[0010] Preferably, the outer end face of the rotating ring is provided with anti-slip texture.
[0011] Preferably, a limiting block is provided on the mounting position, and a limiting groove is provided on the rotating ring corresponding to the position of the limiting block, with the limiting block placed in the limiting groove.
[0012] Preferably, the electric toothbrush body includes a handle and a toothbrush head, the circuit board is installed inside the handle, the handle also has an electric toothbrush motor and a battery electrically connected to the circuit board, the output shaft of the electric toothbrush motor is connected to the toothbrush head, and the mounting position is provided on the handle.
[0013] By adopting the above solution, this utility model designs the rotating ring as a component that can rotate under human force, and combines the sensing relationship between the magnet and the Hall sensor to replace the conventional button control. At the same time, the elastic limit between the protrusion on the movable spring and the slot provides a corresponding gear feel when rotating, making the operation more accurate for consumers. Attached Figure Description
[0014] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.
[0015] Figure 2 This is a schematic diagram of the structure of the rotating ring detaching from the main body of the electric toothbrush according to an embodiment of the present invention.
[0016] Figure 3 This is a schematic diagram of the mounting position according to an embodiment of the present invention.
[0017] Figure 4 This is a schematic diagram of the rotating ring according to an embodiment of the present invention.
[0018] Figure 5 This is an exploded view of the structure of an embodiment of this utility model. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," 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. They 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, and therefore should not be construed as a limitation of this utility model. 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, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0022] like Figures 1 to 5 As shown, this embodiment provides an electric toothbrush with a knob, including an electric toothbrush body 1 and a rotating ring 2. The electric toothbrush body 1 is provided with a mounting position 3. The rotating ring 2 is rotatably mounted on the mounting position 3. The rotating ring 2 is provided with at least one magnet 21. The inner ring of the rotating ring 2 is provided with at least two slots 22. A spring clip bracket 31 is fixedly mounted on the mounting position 3. The spring clip bracket 31 is provided with at least one movable spring clip 32. The movable spring clip 32 is connected to the spring clip bracket 31 at one end, and the other ends are suspended. The outer end face of the movable spring clip 32 is provided with outwardly protruding protrusions 33. The electric toothbrush body 1 has a built-in circuit board 11 and at least one Hall sensor 12 is provided at the mounting position. The Hall sensor 12 is electrically connected to the circuit board 11.
[0023] As the rotating ring 2 rotates, the protrusion 33 is selectively embedded in a single slot 22, and the moved magnet 21 and Hall sensor 12 form a magnetic field change sensing.
[0024] In this embodiment, the rotating ring is designed as a component that can rotate under human force. Combined with the sensing relationship between magnet 21 and Hall sensor 12, it replaces conventional button control. Simultaneously, the elastic limit between the protrusion 33 on the movable spring 32 and the slot 22 provides a corresponding tactile feedback during rotation, allowing for more accurate operation. Specifically, when the rotating ring 2 rotates under human force, magnet 21 rotates accordingly, changing its position and consequently altering the magnetic field emitted by it. Hall sensor 12 remains stationary, generating a sensing signal. This signal is then recognized as a control command, replacing the control command previously generated by pressing a button. The number of magnets 21 and Hall sensors 12 can be one, two, or more, depending on the specific operating system program. The design of the spring clip bracket 31 mainly uses a metal alloy ring (specifically C-shaped). Relying on the elasticity of the metal alloy as a reference, it continuously provides top pressure when the rotating ring 2 rotates. On the one hand, it provides rotational stability for the rotating ring 2, and on the other hand, it allows the protrusion 33 to be engaged in the slot 22, which can form a resistance, allowing the consumer to feel the existence of the operating gear. The existence of multiple slots 22 corresponds to the number of gears. The specific number of gears is also determined by the internal control system program.
[0025] Furthermore, in this embodiment, the mounting position 3 can be an annular groove, and the rotating ring 2 can be fitted into the mounting position, allowing the rotating ring 2 to rotate freely within the mounting position 3.
[0026] Furthermore, to facilitate the application of rotational force to the rotating ring 2 by hand, the outer end face of the rotating ring 2 in this embodiment is provided with anti-slip texture 24. The specific shape of the anti-slip texture 24 can be an alternating groove or a shape with anti-slip function such as granular protrusions.
[0027] Furthermore, in the design, corresponding positions are provided for the number of slots 22. To prevent the protrusion 33 from rotating to a position where no slot 22 is provided, which would result in invalid operation and waste the consumer's time if it continues to rotate, a limiting block 34 is provided on the mounting position 3 in this embodiment. A limiting groove 25 is provided on the rotating ring 2 at the position corresponding to the limiting block 34. The limiting block 34 is placed in the limiting groove 25. The range of the limiting groove 25 is equal to the range where the slot 22 is located. In this way, the rotating ring 2 can always rotate within the range where the protrusion 33 and the slot 22 can be engaged.
[0028] Furthermore, the specific structure of the electric toothbrush body 1 is largely the same as existing structures, specifically: the electric toothbrush body 1 includes a handle 13 and a toothbrush head 14; the circuit board 11 is installed inside the handle 13; the handle 13 also houses an electric toothbrush motor 15 electrically connected to the circuit board 11 and a battery 16; the output shaft of the electric toothbrush motor 15 is connected to the toothbrush head 14; and the mounting position 3 is located on the handle 13. The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An electric toothbrush with a knob, characterized in that: The toothbrush includes an electric toothbrush body and a rotating ring. The electric toothbrush body has a mounting position, and the rotating ring is rotatably mounted on the mounting position. The rotating ring has at least one magnet, and its inner ring has at least two slots. A spring clip bracket is fixedly mounted on the mounting position. The spring clip bracket has at least one movable spring clip, which is connected to the spring clip bracket at one end, with the other ends suspended. The outer end face of the movable spring clip has outwardly protruding dots. The electric toothbrush body has a built-in circuit board, and at least one Hall sensor is located at the mounting position. The Hall sensor is electrically connected to the circuit board. As the rotating ring rotates, the protrusions are selectively embedded in a single slot, and the moved magnet and the Hall sensor form a magnetic field change sensing.
2. An electric toothbrush with a knob as described in claim 1, characterized in that: The mounting position is an annular groove, and the rotating ring is fitted into the mounting position, allowing the rotating ring to rotate freely within the mounting position.
3. An electric toothbrush with a knob as described in claim 2, characterized in that: The outer end face of the rotating ring is provided with anti-slip texture.
4. An electric toothbrush with a knob as described in claim 1, characterized in that: A limiting block is provided on the mounting position, and a limiting groove is provided on the rotating ring at the position corresponding to the limiting block, with the limiting block placed in the limiting groove.
5. An electric toothbrush with a knob as described in claim 1, characterized in that: The electric toothbrush body includes a handle and a toothbrush head. The circuit board is installed inside the handle. The handle also has an electric toothbrush motor and a battery that are electrically connected to the circuit board. The output shaft of the electric toothbrush motor is connected to the toothbrush head. The mounting position is located on the handle.