A toothbrush handle

Abstract

The technical scheme discloses a toothbrush handle, which comprises a handle body, a handle shell and a rotating brush disc; the eccentric swing rod of the handle body is designed in an integrated mode; the rotating brush disc is designed with a slot at a position matched with the eccentric swing rod, and the end position of the eccentric swing rod is inserted into the slot; the rotating brush disc is designed with a transversely annularly protruding ring table part at an end position matched with the handle shell; the handle shell is designed with a buckle for limiting the ring table part at a position corresponding to the ring table part, and the buckle is aligned with the rotating center axis of the handle shell. The technical scheme solves the technical problem of how to optimize the structure of the handle shell so that the rotating brush disc can be well positioned and avoid large shaking.

Description

Technical Field

[0001] This utility model relates to a daily necessities, specifically a toothbrush handle. The toothbrush handle has a unique positioning design to ensure stability during use. Due to the improved stability, its eccentric swing arm can be designed as an integrated unit. Background Technology

[0002] Electric toothbrushes are currently widely used. A typical electric toothbrush handle design includes a handle body, a rotating brush disc, bristles, and a handle shell. The handle body fits onto the main toothbrush structure and uses an eccentric lever to oscillate the rotating brush disc. The brush disc has bristles for oral cleaning. The handle shell secures both the handle body and the rotating brush disc, with the handle body located inside the handle shell. In the current design, the lack of proper restraint between the rotating brush disc and the handle shell causes noticeable wobbling when the rotating brush disc is oscillated by the eccentric lever, affecting the toothbrush's normal use. Furthermore, to mitigate this wobbling, the eccentric lever is currently designed as a separate unit. The part of the eccentric lever that engages with the rotating brush disc is made of metal to ensure sufficient force and strength, while other parts are made of plastic. This design is more complex to manufacture and increases costs. Utility Model Content

[0003] The purpose of this invention is to provide a toothbrush handle, and the technical problem to be solved is: how to optimize the structure of the handle shell so that the rotating brush disc can be well positioned and avoid excessive shaking.

[0004] A toothbrush handle includes a handle body, a handle shell, and a rotating brush disc; the eccentric rocker arm of the handle body is an integral design, and the rotating brush disc has a slot at the position where it mates with the eccentric rocker arm, the end of which is inserted into the slot; the rotating brush disc has a transversely annular protruding pedestal at the end position where it mates with the handle shell, and the handle shell has a buckle at the position corresponding to the pedestal to limit the pedestal, the buckle being aligned with the rotation center axis of the handle shell.

[0005] The buckles are three in number and evenly arranged.

[0006] The handle body and handle shell are fastened together at the bottom position.

[0007] The rotating brush disc has a positioning cavity with a hollow structure at the position where it mates with the rotation center axis of the handle housing.

[0008] The outer wall of the handle shell has a teardrop-shaped cavity.

[0009] The beneficial effects of this utility model are: the integrated design of the eccentric swing arm simplifies the manufacturing of the handle and reduces its cost; the design of the ring platform and the buckle ensures accurate positioning of the buckle on the ring platform, reducing the shaking of the rotating brush disc; the design of the rotating central shaft and the positioning cavity forms a second positioning, thereby ensuring good relative stability between the handle shell and the rotating brush disc. Attached Figure Description

[0010] Figure 1 This is a diagram of a toothbrush handle; Figure 2 This is a schematic diagram of the handle shell; Figure 3 This is a diagram of a toothbrush handle after the handle cover has been removed; Figure 4 This is a schematic diagram of the handle; In the picture 1. Handle; 11. Off-center lever; 2. Handle housing; 21. Snap fastener; 22. Rotation center shaft; 23. Cavity; 3. Rotating brush disc, 31. Ring platform, 32. Disc body, 321. Slot, 322. Positioning cavity, 33. Brush bristles. Detailed Implementation

[0011] Please refer to Figures 1 to 4 The toothbrush handle shown in the figure mainly consists of a handle body 1, a handle shell 2, and a rotating brush disc 3. The handle body 1 is primarily assembled with the motor unit of the electric toothbrush, causing it to reciprocate in a swinging motion under the action of the motor, which in turn drives the rotating brush disc 3 to reciprocate in a swinging motion. The handle shell 2 mainly serves as an external component of the handle body 1, and also fixes and limits the rotating brush disc 3. In practical applications, the above components can be further optimized as needed, such as optimizing the shape, structure, material, and quantity of features, adding other components, or directly or indirectly replacing existing components with equivalent ones.

[0012] The main difference between the handle 1 shown in the picture and the existing handle 1 is that the handle 1 is optimized into a one-piece structure. This design replaces the original combination of metal and plastic, and the one-piece manufacturing eliminates the need for separate, multi-step production, simplifying the manufacturing process and reducing costs. The design of other parts of the handle 1 can refer to existing designs.

[0013] In order to limit the rotation of the brush disk 3, the handle shell 2 in the figure has a design of evenly arranged buckles 21 inside the part where it is assembled with the rotating brush disk 3 at the top. As shown in the figure, three buckles 21 are evenly arranged and all face the rotation center axis 22 of the handle shell 2. Correspondingly, the rotating brush disk 3 has a transversely protruding annular platform 31 designed at the corresponding position. In this way, the buckles 21 press against the annular platform 31 at a uniform height, thereby ensuring the limitation of the rotation of the brush disk 3. The assembly of the handle shell 2 and the handle body 1 can refer to the existing technology, such as assembling the handle body 1 and the handle shell 2 by interlocking them at the bottom. In order to reduce the overall weight of the handle body 1 or improve its overall performance, a teardrop-shaped cavity 23 can be designed on the outer wall of the handle shell 2.

[0014] The rotating brush disc 3 in the figure has a disc body 32 and brush bristles 33. A slot 321 is designed at the position where the disc body 32 mates with the eccentric swing rod 1111. This allows the end (top) of the eccentric swing rod 11 to be easily inserted into the slot 321, thus enabling the eccentric swing rod 11 to drive the rotating brush disc 3 to oscillate back and forth. Simultaneously, for better fixation and positioning, the disc body 32 has a hollow positioning cavity 322 at the position where it mates with the rotation center shaft 22. This allows the rotation center shaft 22 to be easily inserted into the positioning cavity 322, further fixing and positioning the rotating brush disc 3 to the handle shell 2.

[0015] The specific embodiments described above are merely illustrative of the present technical solution and are not intended to limit the present technical solution. In the description of the present technical solution, it should be noted that terms such as "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are only for the convenience of describing the present technical solution 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 the present technical solution.

[0016] Furthermore, in the description of this technical solution, it should be noted that, unless otherwise explicitly specified and limited, the terms "fixed" and "fitting" 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this technical solution according to the specific circumstances.

[0017] Although embodiments of the present technical solution have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present technical solution, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A toothbrush handle, characterized in that: The device includes a handle body (1), a handle shell (2), and a rotating brush disc (3). The eccentric rocker arm (11) of the handle body (1) is an integral design. The rotating brush disc (3) has a slot (321) at the position where it mates with the eccentric rocker arm (11). The end of the eccentric rocker arm (11) is inserted into the slot (321). The rotating brush disc (3) has a transversely protruding ring platform (31) at the end position where it mates with the handle shell (2). The handle shell (2) has a buckle (21) at the position corresponding to the ring platform (31) to limit the ring platform (31). The buckle (21) is aligned with the rotation center axis (22) of the handle shell (2).

2. A toothbrush handle according to claim 1, characterized in that: The buckle (21) has three and is evenly arranged.

3. A toothbrush handle according to claim 1, characterized in that: The handle body (1) and handle shell (2) are fastened together at the bottom position.

4. A toothbrush handle according to claim 1, characterized in that: The rotating brush (3) has a positioning cavity (322) with a hollow structure at the position where it mates with the rotation center axis (22) of the handle (2).

5. A toothbrush handle according to claim 1, characterized in that: The outer wall of the handle shell (2) has a teardrop-shaped cavity (23).

Images