A non-handheld fully automatic toothbrush
By designing a hands-free, fully automatic toothbrush, which utilizes the toothbrush body and bite activation, the problem of traditional toothbrushes requiring handheld operation is solved. This achieves automatic brushing and adapts to the cleaning needs of special populations, improving cleaning effectiveness and comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 袁清海
- Filing Date
- 2026-04-20
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional handheld toothbrushes require continuous handholding during use, reducing time efficiency and are not suitable for people with insufficient hand strength or dexterity, making it difficult to guarantee cleaning effectiveness and comfort.
Design a non-handheld fully automatic toothbrush, which uses a toothbrush body, a vibration frame, multiple vibration motors, a transmission column and a pressure switch. It is activated by biting to achieve automatic brushing and is suitable for special groups of people.
It enables automatic brushing without hands, improving time utilization and is suitable for special groups such as the elderly and those with arthritis, enhancing cleaning effectiveness and comfort.
Smart Images

Figure CN122096546A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of dental cleaning tools, specifically a non-handheld, fully automatic toothbrush. Background Technology
[0002] Currently, toothbrushes widely used in oral hygiene are mainly divided into two categories: traditional manual toothbrushes and electric toothbrushes. Traditional manual toothbrushes require the user to hold the handle and rely on the reciprocating motion of the arm and wrist to drive the brush head to mechanically rub against the tooth surface to remove plaque and food debris. Although electric toothbrushes reduce the amount of manual force required to some extent by using a built-in motor to drive the brush head to produce high-frequency vibration or rotation, the user still needs to hold the handle throughout the entire process and actively control the movement path and dwell time of the brush head in the mouth.
[0003] This type of handheld toothbrush has obvious drawbacks: First, users must maintain a holding position while brushing, making it impossible to perform other activities simultaneously and reducing time efficiency; second, for people with insufficient hand strength or dexterity (such as the elderly, arthritis patients, Parkinson's disease patients, and amputees), it is very difficult to hold the handle for a long time to brush their teeth, and they may not even be able to complete oral cleaning independently; third, when manually controlling the brush head movement, it is difficult to maintain even pressure and trajectory, which can easily lead to incomplete cleaning, damage to gums, and other problems, affecting oral cleaning effectiveness and gum health.
[0004] Therefore, in order to address the aforementioned technical problems, it is necessary to provide a non-handheld, fully automatic toothbrush. Summary of the Invention
[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide a non-handheld fully automatic toothbrush to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention provides a non-handheld fully automatic toothbrush, comprising a toothbrush body, a battery, a vibrating frame, multiple vibrating motors, multiple transmission columns, and a pressure switch. The toothbrush body has a pair of opposing tooth sockets, and a cavity is formed inside the toothbrush body. The battery is fixedly installed within the cavity. The multiple vibrating motors are fixedly installed within the cavity. The vibrating frame is fixedly installed at the output end of the multiple vibrating motors, and the shape of the vibrating frame is adapted to the tooth sockets. One end of each transmission column is fixedly connected to three inner walls of the vibrating frame, and bristles are fixedly connected to the transmission column. Through holes corresponding to the transmission columns are formed in the walls of the tooth sockets, and these through holes communicate with the cavity. The transmission columns pass through the through holes, allowing the bristles to be positioned within the tooth sockets. The pressure switch is installed within the tooth sockets, corresponding to the position of the incisors, and is electrically connected to the battery and the vibrating motors.
[0007] In one or more embodiments of the present invention, a first occlusal point and a second occlusal point are further provided in the alveolar ridge at positions corresponding to the user's molars and incisors, and the first occlusal point and the second occlusal point protrude from the bottom wall of the alveolar ridge.
[0008] In one or more embodiments of the present invention, the width of the alveolar bone is 3.3-3.6 cm.
[0009] In one or more embodiments of the present invention, the braces body is provided with a charging interface, and the waterproof rating of the charging interface is ≥ IPX7.
[0010] In one or more embodiments of the present invention, the brace body is further provided with a waterproof plug for sealing the charging interface.
[0011] In one or more embodiments of the present invention, the hardness of the bristles corresponding to the incisor region is lower than the hardness of the bristles corresponding to the molar region.
[0012] In one or more embodiments of the present invention, a sealing ring is provided at the through hole.
[0013] The beneficial effects of this invention are as follows: 1. Achieve fully automatic cleaning without hands: Users only need to bite down on the braces and the start is triggered by the natural biting of the front teeth, completely freeing up their hands. They can read, operate their mobile phones, or do other light activities while brushing their teeth, significantly improving time utilization. 2. Suitable for special groups: No need for hand gripping and fine control, the elderly, people with arthritis, Parkinson's disease, sequelae of stroke, amputation of arm and other hand dysfunctions can also independently and easily complete oral cleaning, improving their self-care ability and sense of dignity. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of a non-handheld fully automatic toothbrush according to an embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a non-handheld fully automatic toothbrush according to an embodiment of the present invention. Figure 2 ; Figure 3 This is a partial cross-sectional view of a non-handheld fully automatic toothbrush according to an embodiment of the present invention; Figure 4 for Figure 3 Schematic diagram of the structure at point A; Figure 5 This is a schematic diagram of the vibration frame of a non-handheld fully automatic toothbrush according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of a non-handheld fully automatic toothbrush according to an embodiment of the present invention. Figure 3 .
[0016] Explanation of reference numerals in the attached figures: 1. Braces body; 101. Cavity; 102. Through hole; 103. Charging interface; 11. Tooth socket; 12. Waterproof plug; 13. Pressure switch; 14. First occlusal point; 15. Second occlusal point; 2. Battery; 21. Vibration motor; 22. Vibration frame; 23. Transmission column; 24. Brush bristles. Detailed Implementation
[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0018] like Figure 1 Figure 6 As shown, an embodiment of the present invention provides a non-handheld fully automatic toothbrush, including a toothbrush body 1. The toothbrush body 1 has a pair of upper and lower opposing tooth sockets 11, which are used to accommodate the user's upper and lower teeth. The tooth sockets 11 are matched to the shape of the human dental arch.
[0019] The braces body 1 has a closed cavity 101 inside. This cavity 101 is located within the enclosing area of the alveolar 11 and is separated from the alveolar 11 by the alveolar wall. A battery 2 with a capacity of 10000mAh is fixedly installed inside the cavity 101, which can meet the power needs of multiple complete brushing cycles.
[0020] Multiple vibration motors 21 are installed inside the cavity 101, located on the upper and lower sides of the battery 2 respectively, to generate uniform vibration force. A U-shaped vibration frame 22 is fixedly mounted on the output end of all the vibration motors 21. The vibration frame 22 is made of a material with a certain degree of elasticity but capable of transmitting vibration; its shape is adapted to the orientation of the alveolar 11, and it is entirely located inside the cavity 101. A small gap is reserved between the vibration frame 22 and the inner wall of the dental brace body 1 to prevent vibration energy from being directly dissipated into the dental brace body 1.
[0021] Multiple transmission columns 23 are fixedly connected to the three inner walls of the vibration frame 22. Specifically, the vibration frame 22 includes an outer wall (corresponding to the labial surface of the tooth), an inner wall (corresponding to the lingual surface of the tooth), and a bottom wall (corresponding to the occlusal surface of the tooth). Multiple transmission columns 23 are evenly spaced along a U-shape on each wall. The transmission columns 23 are slender rigid columns and can be made of POM or stainless steel wire. The alveolar 11 has through holes 102 that communicate with the cavity 101. The position and number of through holes 102 correspond one-to-one with the transmission columns 23. Each transmission column 23 passes through a through hole 102, with one end fixed to the vibration frame 22 and the other end extending into the alveolar 11, where a brush bristle 24 is fixedly connected. The brush bristle 24 is made of food-grade nylon or PBT filaments with rounded ends. Through this structure, the mechanical vibration generated by the vibration motor 21 is transmitted to all transmission columns 23 via the U-shaped vibration frame 22, ultimately driving the brush bristle 24 to vibrate synchronously and at the same frequency.
[0022] A miniature pressure switch 13 is embedded in the alveolar bone 11, corresponding to the position of the bottom wall of the user's incisor. This pressure switch 13 is normally open and is electrically connected to the battery 2 and the vibration motor 21 via a sealed wire. When the user bites down on the incisor, triggering the pressure switch 13, the internal contacts of the pressure switch 13 close, the circuit is completed, and the vibration motor 21 begins to operate. When the pressure switch 13 is not triggered, the circuit is open.
[0023] To prevent the brush bristles 24 from being flattened by the occlusal surfaces of the teeth, thus hindering their effective vibration, this embodiment also provides a first occlusal point 14 and a second occlusal point 15 within the alveolar ridge 11, corresponding to the positions of the user's molars and incisors, respectively. The first occlusal point 14 and the second occlusal point 15 are made of elastic medical silicone and protrude from the bottom wall of the alveolar ridge 11.
[0024] When the user bites down, the alveolar bone behind the user's molars contacts the first occlusal point 14, while the incisal edge or occlusal surface of the incisors mainly contacts the second occlusal point 15, thus maintaining a preset gap between the user's tooth surface and the alveolar wall of the alveolar bone 11. This gap allows the bristles 24 sufficient space to bend and rebound during vibration, forming an effective brushing motion and significantly improving cleaning efficiency. At the same time, the elastic feedback provided by the occlusal point also enhances chewing comfort.
[0025] To further improve the cleaning ability of the bristles 24 on the tooth surfaces (labial and lingual surfaces), this embodiment optimizes the geometric dimensions of the alveolar 11. Specifically, when the user's teeth are normally occluded within the alveolar 11, the horizontal distance (i.e., gap) between the sidewall of the tooth and the corresponding sidewall of the alveolar 11 is set to 1 cm. This gap is not empty, but filled with bristles 24 of appropriate density. The 1 cm gap ensures that the bristles 24 have sufficient lateral vibration amplitude and that the bristles 24 can apply appropriate contact pressure to the tooth surfaces, avoiding insufficient cleaning due to an excessively large gap or the bristles 24 becoming compressed and ineffective due to an excessively small gap.
[0026] Meanwhile, in this embodiment, the width of the alveolar 11 is set to 3.5cm, which can cover more than 90% of the adult population and can be used without customization. Furthermore, to adapt to the moist, saliva-rich, and cleaning environment inside the oral cavity, this embodiment features a specifically designed waterproof structure. During molding, the dental brace body 1 completely seals the battery 2, vibration motor 21, MCU, and other electronic components within the cavity 101. The only channel connecting the cavity 101 to the outside is the through-hole 102 through which the drive column 23 passes. A miniature elastic sealing ring (such as a silicone O-ring) or an interference fit and grease seal is used at the through-hole 102 to prevent moisture from seeping in along the drive column 23.
[0027] Furthermore, the braces body 1 is equipped with a charging port 103, which meets an IPX7 or higher waterproof rating. Simultaneously, the braces body 1 also features a waterproof plug 12 to seal the charging port 103. The waterproof plug 12 is made of flexible silicone and fits tightly with the charging port 103. After charging, the user must tighten the waterproof plug 12 to ensure the overall waterproof performance during daily use and washing. As an alternative, wireless inductive charging can be used, eliminating the need for an exposed charging port 103 and further improving waterproof reliability.
[0028] Obviously, the above-described embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.
Claims
1. A non-handheld, fully automatic toothbrush, characterized in that, include: The braces body (1) has a pair of upper and lower opposing tooth sockets (11) on it, and a cavity (101) is formed inside the braces body (1). A storage battery (2) is fixedly installed inside a cavity (101); Multiple vibration motors (21) are fixedly installed inside the cavity (101); A vibration frame (22) is fixedly installed at the output end of multiple vibration motors (21), and the shape of the vibration frame (22) is adapted to the tooth groove (11); Multiple transmission columns (23) are fixedly connected at one end to the three inner walls of the vibration frame (22). Brush bristles (24) are fixedly connected to the transmission columns. Through holes (102) corresponding to the transmission columns (23) are opened on the groove wall of the tooth socket (11). The through holes (102) are connected to the cavity (101). The transmission columns (23) pass through the through holes (102) so that the brush bristles (24) are located in the tooth socket (11). Pressure switch (13) is installed in the tooth socket (11) and corresponds to the position of the incisor. Pressure switch (13) is electrically connected to battery (2) and vibration motor (21).
2. The non-handheld fully automatic toothbrush as described in claim 1, characterized in that, The alveolar ridge (11) is further provided with a first occlusal point (14) and a second occlusal point (15) at the positions corresponding to the user's molars and incisors. The first occlusal point (14) and the second occlusal point (15) protrude from the bottom wall of the alveolar ridge (11).
3. A non-handheld fully automatic toothbrush as described in claim 1, characterized in that, The width of the alveolar bone (11) is 3.3-3.6 cm.
4. A non-handheld fully automatic toothbrush as described in claim 1, characterized in that, The braces body (1) is provided with a charging interface (103), and the waterproof rating of the charging interface (103) is ≥ IPX7.
5. A non-handheld fully automatic toothbrush as described in claim 4, characterized in that, The brace body (1) is also provided with a waterproof plug (12) for sealing the charging interface (103).
6. A non-handheld fully automatic toothbrush as described in claim 1, characterized in that, The hardness of the bristles (24) corresponding to the incisor area is lower than that corresponding to the molar area.
7. A non-handheld fully automatic toothbrush as described in claim 1, characterized in that, A sealing ring is provided at the through hole (102).