Transmission mechanism of electric toothbrush

Abstract

The utility model discloses an electric toothbrush transmission mechanism, and relates to the field of toothbrush manufacturing devices. The electric toothbrush transmission mechanism comprises a toothbrush body and a brush head body mounted at the top of the toothbrush body, a brush handle is fixedly connected to the bottom of the toothbrush body, a mounting rod is arranged on the side, away from the brush head body, of the brush handle, a gear is fixedly connected to the bottom of the end, away from the brush head body, of the mounting rod, and the side, provided with a tooth block, of the gear is meshed with a sliding toothed plate; the bottom of the side, away from the mounting rod, of the sliding toothed plate is rotationally connected with a connecting rod, and the end, away from the sliding toothed plate, of the connecting rod is rotationally connected with an eccentric shaft. According to the electric toothbrush transmission mechanism, the brush head main body can rotate back and forth, so that the electric toothbrush can simulate a Bass tooth brushing method, the electric toothbrush is prevented from damaging teeth of a user during use, and meanwhile, the rotary brush head main body can increase the contact area with the teeth, so that omission is avoided when the user brushes the teeth.

Description

Technical Field

[0001] The utility model relates to the technical field of toothbrush manufacturing, in particular to a transmission mechanism of an electric toothbrush. Background Technique

[0002] With the development of society, people pay more attention to dental health. Therefore, electric toothbrushes are usually used to clean teeth. The principle of an electric toothbrush is to drive the brush head to vibrate through electricity to achieve the purpose of cleaning teeth. At the same time, the electric toothbrush can greatly simplify the brushing steps of users;

[0003] Since the existing electric toothbrushes usually drive the brush head of the toothbrush by vibration, so that the brush head quickly contacts the user's toothbrush, and then achieves the purpose of cleaning teeth;

[0004] However, the contact between this kind of electric toothbrush and the teeth is straight up and down, which makes the contact area between the toothbrush and the teeth smaller. When using this kind of electric toothbrush, it is easy to miss some tooth corners that cannot be cleaned. At the same time, the straight up and down vibration mode of this toothbrush cannot imitate the Bass brushing method to the greatest extent, which may cause damage to the user's teeth;

[0005] In view of the above situation, we propose a transmission mechanism of an electric toothbrush. Content of the Utility Model

[0006] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a transmission mechanism of an electric toothbrush.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A transmission mechanism of an electric toothbrush, including a toothbrush main body and a brush head main body installed on the top of the toothbrush main body. A brush handle is fixedly connected to the bottom of the toothbrush main body. An installation rod is arranged on one side of the brush handle away from the brush head main body. The top of the installation rod is movably clamped inside the brush handle. The bottom of the end of the installation rod away from the brush head main body is fixedly connected with a gear. The middle part of the installation rod is rotatably connected inside the toothbrush main body;

[0009] A tooth block is arranged on one side of the gear. The side of the gear provided with the tooth block is meshed with a sliding tooth plate;

[0010] A chute is arranged inside the toothbrush main body. The inside of the chute is slidably connected with one end of the sliding tooth plate adjacent to the installation rod. The sliding tooth plate and the gear are on the same horizontal plane;

[0011] A connecting rod is rotatably connected to the bottom of the side of the sliding tooth plate away from the mounting rod. One end of the connecting rod away from the sliding tooth plate is rotatably connected to an eccentric shaft, and the eccentric shaft is rotatably connected to the top of the connecting rod at a position deviating from the center point.

[0012] Preferably, a servo motor is fixedly connected to the inner ring surface of the toothbrush main body, and the output end of the servo motor is fixedly connected to the end of the eccentric shaft away from the connecting rod.

[0013] Preferably, a charging base is movably inserted into one end of the toothbrush main body away from the brush head main body, and the toothbrush main body is charged through the charging base.

[0014] Preferably, a switch is fixedly connected to the outer ring surface of the toothbrush main body, and the switch is used to control the start of the electric toothbrush.

[0015] The utility model discloses a transmission mechanism of an electric toothbrush, and the beneficial effects thereof are as follows:

[0016] For this transmission mechanism of the electric toothbrush, the user needs to first turn on the switch to drive the servo motor to rotate. When the servo motor rotates, the eccentric shaft rotates to make the connecting rod move in an irregular curve. The curve movement of the connecting rod makes the sliding tooth plate move back and forth. The sliding tooth plate makes the gear rotate back and forth. In this case, the reciprocating rotational movement of the mounting rod is realized, and then the reciprocating rotational movement of the brush head main body is realized, so that the electric toothbrush can simulate the Bass brushing method, prevent the electric toothbrush from damaging the user's teeth during use, and at the same time, the rotary brush head main body can increase the contact area with the teeth, so that the user will not miss any teeth when brushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall outer surface structure of the utility model;

[0018] Figure 2 is a schematic diagram of the overall internal structure of the utility model;

[0019] Figure 3 is the enlarged view of part A of the utility model Figure 2 of the utility model.

[0020] In the figure: 1, toothbrush main body; 2, switch; 3, brush handle; 4, brush head main body; 5, charging base; 6, mounting rod; 7, servo motor; 8, eccentric shaft; 9, connecting rod; 10, sliding tooth plate; 11, gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] 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 the embodiments.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 therefore should not be construed as a limitation to the present utility model.

[0023] An embodiment of the present utility model discloses a transmission mechanism for an electric toothbrush.

[0024] According to the attached Figures 1-3 As shown, it includes a toothbrush main body 1 and a brush head main body 4 installed on the top of the toothbrush main body 1. A brush handle 3 is fixedly connected to the bottom of the toothbrush main body 1. An installation rod 6 is provided on one side of the brush handle 3 away from the brush head main body 4. The top of the installation rod 6 is movably clamped inside the brush handle 3. A gear 11 is fixedly connected to the bottom of one end of the installation rod 6 away from the brush head main body 4. The middle of the installation rod 6 is rotatably connected inside the toothbrush main body 1;

[0025] A tooth block is provided on one side of the gear 11, and the side of the gear 11 with the tooth block is meshed with a sliding tooth plate 10;

[0026] A chute is provided inside the toothbrush main body 1, and one end of the sliding tooth plate 10 adjacent to the installation rod 6 is slidably connected to the inside of the chute. The sliding tooth plate 10 and the gear 11 are on the same horizontal plane;

[0027] A connecting rod 9 is rotatably connected to the bottom of the side of the sliding tooth plate 10 away from the installation rod 6. One end of the connecting rod 9 away from the sliding tooth plate 10 is rotatably connected to an eccentric shaft 8, and the eccentric shaft 8 is rotatably connected to the top of the connecting rod 9 at a position deviating from the center point.

[0028] A servo motor 7 is fixedly connected to the inner ring surface of the toothbrush main body 1. The output end of the servo motor 7 is fixedly connected to one end of the eccentric shaft 8 away from the connecting rod 9. The eccentric shaft 8 can drive the connecting rod 9 to move in an irregular curve.

[0029] A charging base 5 is movably inserted into one end of the toothbrush main body 1 away from the brush head main body 4. The toothbrush main body 1 is charged through the charging base 5.

[0030] A switch 2 is fixedly connected to the outer ring surface of the toothbrush main body 1. The switch 2 is used to control the start of the electric toothbrush. Press and hold the switch 2 for more than two seconds to turn on the power of the servo motor 7, and then press it lightly to change the number of rotations of the servo motor 7, so as to achieve the purpose of adjusting the rotation speed of the brush head main body 4, and further achieve the purpose of adjusting the brushing force of the electric toothbrush.

[0031] In summary: During the application of the present utility model, the user needs to first turn on the switch 2 to drive the servo motor 7 to rotate. When the servo motor 7 rotates, the eccentric shaft 8 rotates to make the connecting rod 9 perform an irregular curve motion. The curve motion of the connecting rod 9 makes the sliding tooth plate 10 move back and forth. The sliding tooth plate 10 makes the gear 11 perform a reciprocating rotational motion. In this case, the reciprocating rotational motion of the mounting rod 6 is realized, and then the reciprocating rotational motion of the brush head main body 4 is realized, so that the electric toothbrush can simulate the Bass brushing method, prevent the electric toothbrush from damaging the user's teeth during use, and at the same time, the rotary brush head main body 4 can increase the contact area with the teeth, so that the user will not miss when brushing teeth.

[0032] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. An electric toothbrush transmission mechanism, comprising a toothbrush body (1) and a brush head body (4) mounted on the top of the toothbrush body (1), characterized in that: The bottom of the toothbrush body (1) is fixedly connected to a brush handle (3); a mounting rod (6) is provided on a side of the brush handle (3) away from the brush head body (4); the top of the mounting rod (6) is movably engaged with the inside of the brush handle (3); the bottom of one end of the mounting rod (6) away from the brush head body (4) is fixedly connected to a gear (11); and the middle part of the mounting rod (6) is rotatably connected to the inside of the toothbrush body (1); A tooth block is provided on one side of the gear (11), and the side of the gear (11) provided with the tooth block is meshed with the sliding tooth plate (10); The toothbrush body (1) is provided with a slide groove inside, the inside of the slide groove is slidably connected to one end of the sliding tooth plate (10) adjacent to the mounting rod (6), and the sliding tooth plate (10) and the gear (11) are in the same horizontal plane; The bottom of the sliding tooth plate (10) away from the mounting rod (6) is rotatably connected to a connecting rod (9), and one end of the connecting rod (9) away from the sliding tooth plate (10) is rotatably connected to an eccentric shaft (8), and the eccentric shaft (8) is rotatably connected to the top of the connecting rod (9) at a point deviating from the center point.

2. The electric toothbrush transmission mechanism according to claim 1, characterized in that: A servo motor (7) is fixedly connected to the inner annular surface of the toothbrush body (1), and an output end of the servo motor (7) is fixedly connected to an end of the eccentric shaft (8) away from the connecting rod (9).

3. The electric toothbrush transmission mechanism according to claim 2, characterized in that: One end of the toothbrush body (1) away from the brush head body (4) is movably connected to a charging base (5), and the toothbrush body (1) is charged via the charging base (5).

4. The electric toothbrush transmission mechanism according to claim 3, characterized in that: The outer ring surface of the toothbrush body (1) is fixedly connected with a switch (2), and the switch (2) is used to control the start-up of the electric toothbrush.

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