An oral care toothbrush device having a multi-angle cleaning head

The quick-release mechanism design allows for easy replacement of the cleaning head of the multi-angle toothbrush, solving the problem of damage caused by the one-piece structure of existing toothbrushes, and improving service life and user experience.

CN224403140UActive Publication Date: 2026-06-26丁天皓

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
丁天皓
Filing Date
2025-07-10
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing multi-angle toothbrush devices use a one-piece structure. When the bristles of one set of cleaning heads are damaged, it will affect the overall toothbrush performance and user experience.

Method used

The quick-release mechanism, including a connecting rod, cone disc, movable sleeve, limit block, limit ball, and spring, allows users to easily disassemble and replace damaged cleaning heads. The quick connection and separation are achieved through the cooperation of the limit ball and the U-shaped limit groove.

Benefits of technology

It enables convenient replacement of the cleaning head, extends the lifespan of the toothbrush, improves the user experience, and adapts to the grip needs of different hand shapes.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224403140U_ABST
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Abstract

The application discloses an oral care toothbrush device with a multi-angle cleaning head, and belongs to the technical field of toothbrushes. The oral care toothbrush device comprises a handle main body and a rod body connected with the handle main body, and the end, away from the handle main body, of the rod body is provided with a three-sided toothbrush; a quick release mechanism is arranged at the connecting position of the handle main body and the rod body, and the quick release mechanism comprises a connecting rod connected with the handle main body and a cone disc connected with the rod body; and an active sleeve is movably arranged on the connecting rod. When the active sleeve is pressed, the limiting block compresses the spring and pushes the limiting steel ball to shrink inward, thereby releasing the limiting of the connecting seat; at this time, the cone disc can be separated from the connecting rod, the three-sided toothbrush can be disassembled, and after the active sleeve is loosened, the spring is reset to push the limiting steel ball to be clamped into the limiting groove of the connecting seat, thereby completing the locking; the threaded surface of the connecting rod is matched with the threaded groove of the handle main body, the extension length of the connecting rod can be finely adjusted, and different hand holding requirements can be met.
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Description

Technical Field

[0001] This application relates to the field of toothbrush technology, specifically an oral care toothbrush device with a multi-angle cleaning head. Background Technology

[0002] With increasing awareness of oral care, a variety of innovative toothbrushes have emerged on the market to provide more efficient cleaning. Traditional toothbrush designs typically use a single brush head structure, which can perform basic cleaning of teeth. However, as users' requirements for oral care effects increase, more and more innovative toothbrushes are beginning to adopt multi-angle brush head designs in order to cover more tooth surfaces and improve cleaning efficiency.

[0003] Existing multi-angle toothbrush devices mainly employ a design with multiple brush heads, typically adding multiple sets of bristles to the brush head. By combining bristles at different angles, they attempt to provide a more comprehensive oral cleaning experience. However, while this design improves cleaning effectiveness, it also brings some inconveniences. First, toothbrushes with multiple cleaning heads experience significantly higher brush head usage frequency, leading to a much faster rate of bristle wear. Compared to traditional single-head toothbrushes, the bristle wear frequency of these multi-angle toothbrushes is significantly higher. Existing multi-angle toothbrushes generally adopt a one-piece structure. When the bristles of one cleaning head are damaged, the integrated design of the entire toothbrush device often affects the overall toothbrush's performance and user experience.

[0004] Therefore, this application provides an oral care toothbrush device with a multi-angle cleaning head to solve the above-mentioned problems. Utility Model Content

[0005] This application provides an oral care toothbrush device with multi-angle cleaning heads, aiming to solve the problem mentioned in the background art that existing multi-angle toothbrushes generally adopt an integrated structure, and when the bristles of one set of cleaning heads are damaged, it often affects the overall toothbrush performance and user experience.

[0006] To achieve the above objectives, this application provides the following technical solution: an oral care toothbrush device with a multi-angle cleaning head, comprising a handle body and a rod connected to the handle body, wherein a three-sided toothbrush is provided at the end of the rod away from the handle body, and a quick-release mechanism is provided at the connection between the handle body and the rod.

[0007] The quick-release mechanism includes a connecting rod connected to the handle body and a conical disc connected to the rod body. A movable sleeve is movably sleeved on the connecting rod. A limiting block sleeved on the inner wall of the movable sleeve is fixedly installed and fitted with the connecting rod. Several limiting steel balls are distributed in a ring inside the connecting rod. A spring connected to the limiting block is sleeved on the connecting rod. A connecting seat that is inserted into the connecting rod is installed at one end of the conical disc.

[0008] Preferably, the upper end of the connecting seat is fixedly connected to the conical disc, and the connecting seat is provided with a limiting groove for limiting the limiting steel ball. The limiting groove is U-shaped. The limiting block compresses the spring and pushes the limiting steel ball to retract inward, so that the limiting steel ball can disengage along the U-shaped limiting groove.

[0009] Preferably, a second sealing rubber ring is fitted on one end of the connecting rod near the connecting seat to prevent bacteria from growing inside, extend the service life of the toothbrush, and facilitate water washing and disinfection.

[0010] Preferably, a first sealing rubber ring is fitted on the end of the connecting seat away from the connecting rod. The rubber ring is made of food-grade silicone, and the lip design enhances the sealing performance.

[0011] Preferably, the handle body has a threaded groove, and the connecting rod has a threaded surface that is threaded into the threaded groove.

[0012] When the movable sleeve of this oral care toothbrush is pressed, the limiting block compresses the spring and pushes the limiting steel ball inward to release the limiting of the connecting seat. At this time, the cone disc can be separated from the connecting rod to achieve the disassembly of the three-sided toothbrush. After the movable sleeve is released, the spring returns to its original position and pushes the limiting steel ball into the limiting groove of the connecting seat to complete the locking. The threaded surface of the connecting rod matches the threaded groove of the handle body, which can finely adjust the extension length of the connecting rod to adapt to the grip needs of different hand shapes. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an oral care toothbrush device with a multi-angle cleaning head;

[0014] Figure 2 This is a schematic diagram of the connecting rod structure;

[0015] Figure 3 This is a structural schematic diagram of the cross-sectional view of the connecting rod section;

[0016] Figure 4 This is a structural schematic diagram of the side cross-section of the connecting rod.

[0017] In the picture:

[0018] 1. Handle body; 2. Rod; 3. Three-sided toothbrush; 4. Threaded groove; 5. Quick release mechanism; 51. Conical disc; 52. Connecting seat; 521. Limiting groove; 522. First sealing rubber ring; 53. Movable sleeve; 531. Limiting block; 54. Connecting rod; 541. Threaded surface; 55. Second sealing rubber ring; 56. Spring; 57. Limiting steel ball. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] This embodiment provides an oral care toothbrush device with a multi-angle cleaning head, such as... Figure 1-4 As shown, the oral care toothbrush device includes a handle body 1 and a rod 2 connected to the handle body 1. A three-sided toothbrush 3 is provided at the end of the rod 2 away from the handle body 1, and a quick-release mechanism 5 is provided at the connection between the handle body 1 and the rod 2.

[0021] The quick-release mechanism 5 includes a connecting rod 54 connected to the handle body 1 and a conical disc 51 connected to the rod body 2. A movable sleeve 53 is movably sleeved on the connecting rod 54. A limiting block 531 sleeved on the inner wall of the movable sleeve 53 is fixedly installed and fitted with the connecting rod 54. Several limiting steel balls 57 are distributed in a ring inside the connecting rod 54. A spring 56 connected to the limiting block 531 is sleeved on the connecting rod 54. A connecting seat 52 that is inserted into the connecting rod 54 is installed at one end of the conical disc 51.

[0022] Specifically, when the movable sleeve 53 is pressed, the limiting block 531 compresses the spring 56 and pushes the limiting steel ball 57 inward to release the limitation on the connecting seat 52. At this time, the cone disc 51 can be separated from the connecting rod 54 to achieve the disassembly of the three-sided toothbrush 3. After the movable sleeve 53 is released, the spring 56 returns to its original position and pushes the limiting steel ball 57 into the limiting groove 521 of the connecting seat 52 to complete the locking. The limiting steel ball 57 is made of stainless steel and provides a clamping force of 10-15N to prevent loosening during use. The movable sleeve 53 is made of ABS engineering plastic with a non-slip textured surface. With this convenient quick-installation and quick-disassembly method, users can replace the cleaning head at any time according to the damage condition.

[0023] The upper end of the connecting seat 52 is fixedly connected to the cone plate 51. The connecting seat 52 is provided with a limiting groove 521 for limiting the limiting steel ball 57. The limiting groove 521 is U-shaped.

[0024] More specifically, the U-shaped limiting groove 521 cooperates with the limiting steel ball 57. When the connecting seat 52 is inserted into the connecting rod 54, the limiting steel ball 57 slides into the bottom along the groove to form a lock. The limiting groove 521 and the limiting steel ball 57 are interference fit. When the movable sleeve 53 is pressed, the limiting block 531 compresses the spring 56 and pushes the limiting steel ball 57 to retract inward. The limiting steel ball 57 can disengage along the U-shaped limiting groove 521.

[0025] A second sealing rubber ring 55 is fitted on the end of the connecting rod 54 near the connecting seat 52, and a first sealing rubber ring 522 is fitted on the end of the connecting seat 52 away from the connecting rod 54.

[0026] It should be noted that the second sealing rubber ring 55 prevents oral liquid from seeping into the handle body 1 along the gap between the connecting rod 54 and the connecting seat 52, and the first sealing rubber ring 522 blocks leakage at the connection between the cone disc 51 and the connecting seat 52. The two work together to improve the waterproof level. The rubber rings are all made of food-grade silicone. The lip design enhances the sealing performance. The lip of the first sealing rubber ring 522 faces the direction of the liquid source, forming a one-way seal.

[0027] The handle body 1 has a threaded groove 4, and the connecting rod 54 has a threaded surface 541 that is threaded into the threaded groove 4.

[0028] It is worth mentioning that the threaded surface 541 of the connecting rod 54 mates with the threaded groove 4 of the handle body 1 to provide axial fixing force. At the same time, the threaded connection allows for fine adjustment of the extension length of the connecting rod 54 to adapt to the gripping needs of different hand shapes.

[0029] When in use, pressing the movable sleeve 53 compresses the spring 56 and pushes the limiting steel ball 57 inward to release the limitation on the connecting seat 52. At this time, the cone disc 51 can be separated from the connecting rod 54 to disassemble the three-sided toothbrush 3. After releasing the movable sleeve 53, the spring 56 returns to its original position and pushes the limiting steel ball 57 into the limiting groove 521 of the connecting seat 52 to complete the locking. The threaded surface 541 of the connecting rod 54 cooperates with the threaded groove 4 of the handle body 1, which can finely adjust the extension length of the connecting rod 54 to adapt to the gripping needs of different hand shapes.

[0030] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. An oral care toothbrush device with a multi-angle cleaning head, comprising a handle body (1) and a rod (2) connected to the handle body (1), wherein a three-sided toothbrush (3) is provided at one end of the rod (2) away from the handle body (1), and a quick-release mechanism (5) is provided at the connection between the handle body (1) and the rod (2). Its features are: The quick-release mechanism (5) includes a connecting rod (54) connected to the handle body (1) and a conical disc (51) connected to the rod body (2). A movable sleeve (53) is movably sleeved on the connecting rod (54). A limiting block (531) sleeved on the inner wall of the movable sleeve (53) is fixedly installed on the connecting rod (54). Several limiting steel balls (57) are distributed in a ring inside the connecting rod (54). A spring (56) connected to the limiting block (531) is sleeved on the connecting rod (54). A connecting seat (52) that is inserted into the connecting rod (54) is installed at one end of the conical disc (51).

2. The oral care toothbrush device with a multi-angle cleaning head according to claim 1, characterized in that: The upper end of the connecting seat (52) is fixedly connected to the cone disc (51). The connecting seat (52) is provided with a limiting groove (521) for limiting the limiting steel ball (57). The limiting groove (521) is U-shaped.

3. The oral care toothbrush device with a multi-angle cleaning head according to claim 2, characterized in that: A second sealing rubber ring (55) is fitted on one end of the connecting rod (54) near the connecting seat (52).

4. The oral care toothbrush device with a multi-angle cleaning head according to claim 3, characterized in that: The first sealing rubber ring (522) is fitted on the end of the connecting seat (52) away from the connecting rod (54).

5. The oral care toothbrush device with a multi-angle cleaning head according to claim 4, characterized in that: The handle body (1) is provided with a threaded groove (4), and the connecting rod (54) is provided with a threaded surface (541) that is threaded into the threaded groove (4).