Electric toothbrush shaft
By assembling the shaft sleeve on the outside of the brush head fixing shaft of the electric toothbrush shaft and fixing it with the fixing part, the problem that the existing electric toothbrush shaft cannot adapt to different styles of brush heads, and the adaptation and more stable connection of brush heads of different sizes are achieved.
Patent Information
- Application Number
- CN202421860006.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-02
AI Technical Summary
The existing electric toothbrush shaft cannot be adapted to different styles of brush heads, which will not be installed when matching different brush heads.
An electric toothbrush shaft is designed, and the shaft sleeve is converted between the thick shaft and the thin shaft by assembling the shaft sleeve on the outside of the brush head fixing shaft and fixing the shaft sleeve using the fixing part to achieve the conversion between the thick shaft and the thin shaft, and adapting to the brush head of different sizes.
The adaptation between the thick shaft and the thin shaft is achieved, and the brush heads of different styles and sizes can be installed. The overall connection stability is improved through the design of the fixing part and avoiding the shaking of the shaft sleeve.
Smart Images
Figure CN222899365U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric toothbrushes, and specifically relates to an electric toothbrush shaft. Background Art
[0002] An electric toothbrush is a new type of toothbrush that makes the brush head generate high-frequency vibration through the rapid rotation or vibration of the motor core, instantly decomposes toothpaste into fine foam, and deeply cleans the tooth gaps. At the same time, the vibration of the bristles can promote blood circulation in the oral cavity and has a massage effect on the gingival tissue. An electric toothbrush usually consists of a body, a micro motor, and a brush head. The micro motor can be connected to the brush head through the shaft end to achieve the vibration cleaning of the teeth.
[0003] Existing electric toothbrush shafts come in different styles of thick shafts and thin shafts. The two types of shafts can be connected to different models of brush heads. Generally, the micro motors in electric toothbrushes can only install one of the shafts. Therefore, when matching different brush heads, it is impossible to adapt and install different styles of brush heads due to the different thicknesses of the shafts. Summary of the Utility Model
[0004] The purpose of the utility model is to provide an electric toothbrush shaft to solve the problems raised in the above background art.
[0005] To achieve the above purpose, the utility model provides the following technical solution: An electric toothbrush shaft includes a main shaft and a brush head fixing shaft fixed at the top of the main shaft. A shaft sleeve for increasing the size of the brush head fixing shaft is assembled on the brush head fixing shaft, and a fixing part for fixing the shaft sleeve is rotatably installed on the outer side of the brush head fixing shaft.
[0006] As a preferred solution of the utility model, the fixing part includes a fixing plate rotatably installed on the outer side of the main shaft. A first threaded ring is fixedly installed at the top of the fixing plate. A threaded groove is opened at the bottom end of the shaft sleeve, and the threaded groove is threadedly connected to the first threaded ring.
[0007] As a preferred solution of the utility model, a rotating ring is rotatably installed on the fixing plate, and a second threaded ring is fixedly connected to the top of the rotating ring.
[0008] As a preferred solution of the utility model, a sleeve hole matching the brush head fixing shaft is opened inside the shaft sleeve, so that the brush head fixing shaft is inserted into the sleeve hole to be assembled with the shaft sleeve.
[0009] As a preferred solution of the utility model, the fixing plate, the first threaded ring, the rotating ring, and the second threaded ring are all concentrically arranged.
[0010] As a preferred solution of the utility model, the fixing part can also be connected to the brush head to fix the brush head.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing a bushing that can be assembled outside the brush head fixing shaft, the size of the brush head fixing shaft can be increased, thereby realizing the conversion between a thick shaft and a thin shaft to adapt to different styles and sizes of brush heads. Moreover, the fixing part can stably assemble the bushing on the brush head fixing shaft without wobbling. At the same time, the fixing part can also fix the connection between the brush head and the body, improving the overall connection stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 FIG. is a schematic structural diagram of the bushing and the brush head fixing shaft of the present utility model after assembly;
[0013] Figure 2 FIG. is a perspective view of the present utility model;
[0014] Figure 3 FIG. is a schematic structural diagram of the bushing of the present utility model;
[0015] Figure 4 FIG. is a schematic structural diagram of the fixing part of the present utility model.
[0016] In the figure: 1, main shaft; 2, brush head fixing shaft; 3, fixing part; 4, bushing; 5, sleeve hole; 6, thread groove; 7, fixing plate; 8, first thread ring; 9, rotating ring; 10, second thread ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0018] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: An electric toothbrush shaft includes a main shaft 1 and a brush head fixing shaft 2 fixed to the top of the main shaft 1. A bushing 4 that increases the size of the brush head fixing shaft 2 is assembled on the brush head fixing shaft 2, enabling the brush head fixing shaft 2 to have two sizes, a thin type and a thick type, for assembling different-sized brush heads. A fixing part 3 for fixing the bushing 4 is rotatably installed outside the brush head fixing shaft 2, and the fixing part 3 can also be connected to the brush head. When the brush head is inserted into the brush head fixing shaft 2, the fixing part 3 can further fix the brush head.
[0019] Among them, the fixing part 3 includes a fixing plate 7 which is rotatably installed outside the main shaft 1. A first threaded ring 8 is fixedly installed on the top of the fixing plate 7. A threaded groove 6 is formed at the bottom end of the sleeve 4, and the threaded groove 6 is threadedly connected with the first threaded ring 8. When the fixing plate 7 is rotated, the first threaded ring 8 will be screwed into the threaded groove 6, thereby fixing the sleeve 4 assembled on the brush head fixing shaft 2.
[0020] Among them, a rotating ring 9 is rotatably installed on the fixing plate 7. A second threaded ring 10 is fixedly connected to the top of the rotating ring 9. Rotating the rotating ring 9 can screw the second threaded ring 10 into a matching fixing groove formed on the brush head to further fix the brush head.
[0021] Among them, a sleeve hole 5 matching the brush head fixing shaft 2 is formed inside the sleeve 4, and the brush head fixing shaft 2 is inserted into the sleeve hole 5 to be assembled with the sleeve 4.
[0022] Among them, the fixing plate 7, the first threaded ring 8, the rotating ring 9 and the second threaded ring 10 are all concentrically arranged, which is convenient for better connection of each component.
[0023] Specifically, when different styles of brush heads need to be installed, the sleeve hole 5 can be aligned with the brush head fixing shaft 2 and inserted so that the sleeve 4 is assembled outside the brush head fixing shaft 2. Then, by rotating the fixing plate 7, the first threaded ring 8 is screwed into the threaded groove 6 to fix the sleeve 4. And by rotating the rotating ring 9, the second threaded ring 10 can also be driven to rotate, so that the second threaded ring 10 is screwed into a matching fixing groove formed on the brush head, improving the firmness of the brush head and the body.
[0024] In the description of the present utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front part", "center", "both ends", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model.
[0025] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.
[0026] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. An electric toothbrush shaft, comprising a main shaft (1) and a brush head fixing shaft (2) fixed to the top of the main shaft (1), characterized in that: The brush head fixing shaft (2) is equipped with a shaft sleeve (4) which increases the size of the brush head fixing shaft (2), and a fixing part (3) which fixes the shaft sleeve (4) is rotatably mounted on the outer side of the brush head fixing shaft (2).
2. The electric toothbrush shaft according to claim 1, characterized in that: The fixing portion (3) comprises a fixing plate (7), the fixing plate (7) being rotatably mounted on the outside of the main shaft (1), a first threaded ring (8) being fixedly mounted on the top of the fixing plate (7), a threaded groove (6) being formed at the bottom end of the shaft sleeve (4), and the threaded groove (6) being threadedly connected to the first threaded ring (8).
3. The electric toothbrush shaft according to claim 2, characterized in that: A rotating ring (9) is rotatably mounted on the fixed plate (7), and a second threaded ring (10) is fixedly connected to the top of the rotating ring (9).
4. The electric toothbrush shaft according to claim 3, characterized in that: The shaft sleeve (4) is provided with a sleeve hole (5) matched with the brush head fixing shaft (2) inside, so that the brush head fixing shaft (2) is inserted into the sleeve hole (5) and assembled with the shaft sleeve (4).
5. The electric toothbrush shaft according to claim 3, characterized in that: The fixed plate (7), the first threaded ring (8), the rotating ring (9) and the second threaded ring (10) are all concentrically arranged.