Electric toothbrush structure

Abstract

The utility model discloses an electric toothbrush structure, which relates to the technical field of electric toothbrushes and comprises a handle, a magnetic suspension motor is mounted in the handle, the output end of the magnetic suspension motor is connected with a transmission shaft, and the outer end of the transmission shaft is slidably sleeved with an internal thread sleeve; the brush head assembly comprises a connecting rod and a brush head which are connected with each other, the connecting rod is in threaded connection with the inner threaded sleeve, and the brush head is sleeved with a buffer cover; a plurality of brush tongue strips are fixed to the side, away from the flexible bristles on the brush head, of the buffer cover at equal intervals, and a cavity is formed in the wall of the buffer cover. The buffer cover is sleeved on the brush head, is made of medical silica gel materials, is safe, non-toxic and good in flexibility, plays a role in protection, buffers impact force on teeth when the brush head assembly collides with the teeth, reduces damage to the teeth, and can be conveniently detached to be cleaned or replaced at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of electric toothbrushes, in particular to an electric toothbrush structure. Background Art

[0002] An electric toothbrush consists of a motor, a brush head, and a power source. The rapid rotation or vibration of the motor core causes the brush head to generate high-frequency vibrations, breaking the toothpaste into fine foam to clean the gaps between teeth. Electric toothbrushes are divided into two types: plug-in and battery-driven. Compared with traditional manual toothbrushes, electric toothbrushes are driven by electricity, and the brush head moves at a speed of thousands or even tens of thousands of times per minute, which is much more efficient than manual toothbrushes.

[0003] At present, when the electric toothbrush head is inserted deep into the mouth to brush the teeth, the side and back of the electric toothbrush head sometimes collide with the teeth. Since the material of the electric toothbrush head itself is hard material and the electric toothbrush head is directly connected to the vibration shaft, the electric toothbrush head is in a high-frequency vibration state. When the back of the electric toothbrush head hits the teeth, it will produce a large impact force on the teeth and a loud noise, resulting in a bad experience. At the same time, when the brush head of the electric toothbrush is damaged, it is inconvenient to disassemble it for replacement. Utility Model Content

[0004] The purpose of the utility model is to provide an electric toothbrush structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric toothbrush structure, comprising:

[0006] A handle, wherein a magnetic suspension motor is installed inside the handle, and an output end of the magnetic suspension motor is connected to a transmission shaft, and an outer end of the transmission shaft is rotated to extend out of the handle, and a rectangular block is fixed outside the handle, and an inner threaded sleeve is slidably sleeved on the outer end of the transmission shaft;

[0007] A brush head assembly, the brush head assembly comprising a connecting rod and a brush head connected to each other, a rectangular groove is provided at one end of the connecting rod away from the brush head, the rectangular groove matches the rectangular block, the connecting rod is threadedly connected to the internal threaded sleeve, and a buffer cover is sleeved on the brush head;

[0008] A plurality of brush tongue strips are fixed at equal intervals on one side of the buffer cover away from the flexible bristles on the brush head. A cavity is opened in the wall of the buffer cover, and a plurality of support strips are fixed in the cavity.

[0009] Preferably, the buffer cover, tongue brush strip and support strip are integrally formed of medical silicone material, which is safe, non-toxic, flexible and has a protective effect.

[0010] Preferably, both left and right sides of the brush head are provided with limiting grooves, and limiting blocks are fixed at positions corresponding to the limiting grooves in the buffer cover, and the limiting blocks are nested in the limiting grooves, thereby ensuring the stability of the buffer cover after it is sleeved on the brush head and preventing it from loosening.

[0011] Preferably, an annular groove is provided on the outer wall of one end of the transmission shaft away from the magnetic levitation motor, and the internally threaded sleeve is slidably sleeved on the annular groove. A plurality of convex strips are fixed at equal intervals on the outer wall of the internally threaded sleeve, and the internally threaded sleeve is limited by the annular groove to prevent the internally threaded sleeve from being separated from the transmission shaft. The friction between the hand and the internally threaded sleeve can be increased by the plurality of convex strips, thereby facilitating the rotation of the internally threaded sleeve.

[0012] Preferably, a battery and a circuit board are installed inside the handle, the battery is electrically connected to the circuit board, the circuit board is electrically connected to the magnetic levitation motor, and a switch button is provided on the handle, and the switch button is electrically connected to the circuit board.

[0013] Preferably, a plurality of protrusions are fixed on the handle at equal intervals, and the protrusions can increase the friction between the hand and the handle, so that the grip can be more stable.

[0014] Preferably, an outer side of one end of the connecting rod away from the brush head is provided with an outer thread matching the inner thread on the inner thread sleeve, so as to facilitate the threaded connection between the connecting rod and the inner thread sleeve, and the connection is simple and convenient.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. A buffer cover is sleeved on the brush head, a cavity is opened in the wall of the buffer cover, and a plurality of support bars are fixed in the cavity. The buffer cover is made of medical silicone material, which is safe, non-toxic, and flexible, and plays a protective role. The impact force of the brush head assembly on the teeth when it collides with the teeth is reduced, and the damage to the teeth is reduced. At the same time, the buffer cover can be easily disassembled for cleaning or replacement;

[0017] 2. By arranging multiple tongue brush strips on the buffer cover, it is convenient to clean the tongue surface and improve the cleaning effect;

[0018] 3. A rectangular block and an internal threaded sleeve are provided on the transmission shaft, and a rectangular groove and an external thread are provided on the connecting rod. The connecting rod is sleeved on the rectangular block through the rectangular groove, and then the internal threaded sleeve is moved up and rotated so that the internal threaded sleeve is threadedly connected to the connecting rod. This makes the connection between the transmission shaft and the brush head assembly simple and easy to disassemble. When the brush head assembly is damaged, it can be disassembled and replaced, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the handle of the utility model;

[0022] Figure 3 For this utility model Figure 2 Schematic diagram of the structure after removing the internal thread sleeve;

[0023] Figure 4 This is a schematic diagram of the brush head assembly structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the brush head assembly of the utility model after removing the buffer cover;

[0025] Figure 6 This is a schematic diagram of the structure of the buffer cover of the utility model;

[0026] Figure 7 This is a schematic diagram of the buffer cover of the utility model from another angle;

[0027] Figure 8 It is a three-dimensional cross-sectional view of the buffer cover of the utility model.

[0028] Description of reference numerals:

[0029] 1. Handle; 2. Transmission shaft; 3. Rectangular block; 4. Internal threaded sleeve; 5. Connecting rod; 6. Brush head; 7. Rectangular groove; 8. Buffer cover; 9. Brush tongue strip; 10. Cavity; 11. Support strip; 12. Limiting groove; 13. Limiting block; 14. Annular groove; 15. Switch button; 16. Convex head. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] The utility model provides Figures 1 to 8 An electric toothbrush structure shown includes:

[0032] A handle 1, wherein a magnetic suspension motor is installed inside the handle 1, and a transmission shaft 2 is connected to the output end of the magnetic suspension motor. The outer end of the transmission shaft 2 is rotated and extended out of the handle 1, and a rectangular block 3 is fixed outside the handle 1, and an internal threaded sleeve 4 is slidably sleeved on the outer end of the transmission shaft 2;

[0033] The brush head assembly includes a connecting rod 5 and a brush head 6 connected to each other. A rectangular groove 7 is provided at one end of the connecting rod 5 away from the brush head 6. The rectangular groove 7 matches the rectangular block 3. The connecting rod 5 is threadedly connected to the internal threaded sleeve 4. A buffer cover 8 is sleeved on the brush head 6.

[0034] A cavity 10 is defined in the wall of the buffer cover 8 , and a plurality of support bars 11 are fixed in the cavity 10 .

[0035] The buffer cover 8, the tongue brush strip 9 and the support strip 11 are integrally formed of medical silicone material, which is safe, non-toxic, and flexible, and plays a protective role.

[0036] Limiting grooves 12 are provided on both sides of the brush head 6, and limiting blocks 13 are fixed at positions corresponding to the limiting grooves 12 in the buffer cover 8. The limiting blocks 13 are nested in the limiting grooves 12, ensuring the stability of the buffer cover 8 after it is sleeved on the brush head 6 and preventing it from loosening.

[0037] An annular groove 14 is provided on the outer wall of one end of the transmission shaft 2 away from the magnetic levitation motor, and the internally threaded sleeve 4 is slidably sleeved on the annular groove 14. A plurality of convex strips are fixed at equal intervals on the outer wall of the internally threaded sleeve 4. The internally threaded sleeve 4 is limited by the annular groove 14 to prevent the internally threaded sleeve 4 from being separated from the transmission shaft 2. The friction between the hand and the internally threaded sleeve 4 can be increased by the plurality of convex strips, thereby facilitating the rotation of the internally threaded sleeve 4.

[0038] A battery and a circuit board are installed inside the handle 1. The battery is electrically connected to the circuit board, and the circuit board is electrically connected to the magnetic levitation motor. A switch button 15 is provided on the handle 1, and the switch button 15 is electrically connected to the circuit board.

[0039] A plurality of protrusions 16 are fixed on the handle 1 at equal intervals, and the protrusions 16 can increase the friction between the hand and the handle 1, so that the grip can be more stable.

[0040] An outer side of one end of the connecting rod 5 away from the brush head 6 is provided with an outer thread matching the inner thread on the inner thread sleeve 4, so that the connecting rod 5 is conveniently threadedly connected to the inner thread sleeve 4, and the connection is simple and convenient.

[0041] In the utility model, when the brush head assembly is connected to the transmission shaft 2, the rectangular groove 7 on the brush head assembly is aligned with the rectangular block 3 on the transmission shaft 2, so that the rectangular block 3 is inserted into the rectangular groove 7, and then the internal threaded sleeve 4 is moved and rotated so that the internal threaded sleeve 4 is threadedly sleeved on the connecting rod 5 on the brush head assembly to achieve the connection between the transmission shaft 2 and the brush head assembly. The connection is simple and convenient. When disassembling, the internal threaded sleeve 4 is rotated in the opposite direction to separate the internal threaded sleeve 4 from the connecting rod 5, and then the handle 1 is pulled to make the rectangular block 3 disengage from the rectangular groove 7. The brush head assembly is separated from the transmission shaft 2, and the disassembly is simple and quick. When the brush head assembly is damaged, it can be disassembled and replaced, which reduces costs. A buffer cover 8 is sleeved on the brush head 6, and a cavity 10 is opened in the wall of the buffer cover 8. A plurality of support bars 11 are fixed in the cavity 10. The buffer cover 8 is made of medical silicone material, which is safe and non-toxic, and has good flexibility. It plays a protective role, and can buffer the impact force of the brush head assembly on the teeth when it collides with the teeth, thereby reducing damage to the teeth. At the same time, the buffer cover 8 can be easily disassembled for cleaning or replacement.

[0042] like Figure 7 As shown, a plurality of brush tongue strips 9 are fixed at equal intervals on one side of the buffer cover 8 away from the flexible bristles on the brush head 6 .

[0043] In the utility model, the multiple tongue brushing strips 9 on the buffer cover 8 facilitate cleaning of the tongue surface, thereby improving the cleaning effect.

[0044] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An electric toothbrush structure, characterized in that: include: A handle (1), wherein a magnetic suspension motor is installed inside the handle (1), an output end of the magnetic suspension motor is connected to a transmission shaft (2), an outer end of the transmission shaft (2) is rotated to extend out of the handle (1) and a rectangular block (3) is fixed outside the handle (1), and an inner threaded sleeve (4) is slidably sleeved on the outer end of the transmission shaft (2); A brush head assembly, the brush head assembly comprising a connecting rod (5) and a brush head (6) connected to each other, the connecting rod (5) having a rectangular groove (7) at one end away from the brush head (6), the rectangular groove (7) matching the rectangular block (3), the connecting rod (5) being threadedly connected to an internally threaded sleeve (4), and a buffer cover (8) being sleeved on the brush head (6); A plurality of brush tongue strips (9) are fixed at equal intervals on a side of the buffer cover (8) away from the flexible bristles on the brush head (6); a cavity (10) is provided in the wall of the buffer cover (8); and a plurality of support strips (11) are fixed in the cavity (10).

2. An electric toothbrush structure according to claim 1, characterized in that: The buffer cover (8), tongue brush strip (9) and support strip (11) are integrally formed using medical silicone material.

3. The electric toothbrush structure according to claim 1, characterized in that: The left and right sides of the brush head (6) are both provided with limiting grooves (12), and a limiting block (13) is fixed at a position corresponding to the limiting groove (12) in the buffer cover (8), and the limiting block (13) is nested in the limiting groove (12).

4. The electric toothbrush structure according to claim 1, characterized in that: An annular groove (14) is formed on the outer wall of one end of the transmission shaft (2) away from the magnetic suspension motor, the internal thread sleeve (4) is slidably sleeved on the annular groove (14), and a plurality of convex strips are fixed at equal intervals on the outer wall of the internal thread sleeve (4).

5. The electric toothbrush structure according to claim 1, characterized in that: A battery and a circuit board are installed inside the handle (1), the battery is electrically connected to the circuit board, the circuit board is electrically connected to the magnetic levitation motor, and a switch button (15) is provided on the handle (1), and the switch button (15) is electrically connected to the circuit board.

6. The electric toothbrush structure according to claim 1, characterized in that: A plurality of protrusions (16) are fixed on the handle (1) at equal intervals.

7. The electric toothbrush structure according to claim 1, characterized in that: An outer side of one end of the connecting rod (5) away from the brush head (6) is provided with an external thread matching the internal thread on the internal thread sleeve (4).

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