CN214908504U - Electric toothbrush motor output structure and electric toothbrush - Google Patents

Abstract

The utility model relates to an electric toothbrush motor output structure and an electric toothbrush, the electric toothbrush motor output structure comprises an output shaft body, a motor cover and a motor cover, wherein one end of the output shaft body is connected with the motor, and the other end of the output shaft body extends out of the motor; the protruding unit is arranged at one end, far away from the motor, of the output shaft body; the connecting unit is connected with the toothbrush head, a clamping part is arranged inside the connecting unit, and the other end of the output shaft body can extend into the connecting unit and enables the protruding unit to be matched with the clamping part; wherein, the clamping part has elasticity. The utility model discloses a firm fixed coordination of toothbrush head and electric toothbrush motor output structure has avoided toothbrush head among the prior art to appear not hard up or the defect that drops between long-time use back and the electric toothbrush motor output structure, simultaneously, through setting joint portion to have elasticity, its can strengthen the interact power between electric toothbrush motor output structure and the toothbrush head, has prolonged the life of toothbrush.

Description

Electric toothbrush motor output structure and electric toothbrush

Technical Field

The utility model relates to an electric toothbrush field especially relates to an electric toothbrush motor output structure and electric toothbrush.

Background

With the development of science and technology, the continuous improvement of the living standard of people and the increasing importance of people on the oral health, the electric toothbrush gradually becomes a popular product. The electric toothbrush can make the brush head generate high-frequency vibration through the quick rotation or vibration of the motor core, instantly decompose toothpaste into fine foam to deeply clean teeth gaps, and meanwhile, the vibration of the brush hair can promote the blood circulation of the oral cavity and has a massage effect on gum tissues.

Among the prior art, the assembly order of toothbrush head and motor output shaft of electric toothbrush is: the motor output shaft is inserted into the toothbrush head from the bottom opening of the toothbrush head, and then the toothbrush head is rotationally fixed on the motor output shaft, so that the toothbrush head is fixedly connected with the electric toothbrush body.

Above-mentioned electric toothbrush's among the prior art toothbrush head fixed knot constructs also can realize the fixed connection of toothbrush head and electric toothbrush body to a certain extent, but because the high-speed rotation of motor or vibration, after using for a long time, probably lead to the not hard up or the droing of toothbrush head.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide an electric toothbrush motor output structure and an electric toothbrush with simple structure, convenient assembly and firm connection aiming at the problem that the toothbrush head and the motor output shaft are easy to loosen or fall off.

The utility model discloses an electric toothbrush motor output structure, it includes:

a motor;

one end of the output shaft body is connected with the motor, and the other end of the output shaft body extends out of the motor;

the protruding unit is arranged at one end, far away from the motor, of the output shaft body;

the connecting unit is connected with a toothbrush head of the electric toothbrush, wherein a clamping part is arranged inside the connecting unit, and the other end of the output shaft body can extend into the connecting unit and enables the protruding unit to be matched with the clamping part;

wherein, the joint portion has elasticity.

In one embodiment, the connection unit includes:

the connecting body, the lower extreme of connecting the body is equipped with an accommodation hole, the other end of output shaft body can pass the accommodation hole back stretches into in the connecting body.

In one embodiment, the clamping portion includes an opening and a buckle, the opening is disposed on the side wall of the connecting body, the buckle is disposed in the opening, and the buckle bends and extends towards the inside of the connecting body, wherein the buckle is matched with the protruding unit.

In one embodiment, the protruding unit is provided with a first surface and a second surface which are connected with each other, the buckle is provided with a third surface and a fourth surface which are connected with each other, when the protruding unit is matched with the buckle, the first surface is in contact with the third surface, an included angle is formed between the first surface and the fourth surface, and the included angle is an obtuse angle.

In one embodiment, a cross section is arranged at one end of the output shaft body, which is far away from the motor, and the protruding unit is arranged on the upper surface of the cross section.

In one embodiment, the output shaft body is provided with a chamfer plane, the chamfer plane is connected with the cross section, and an included angle is formed between the chamfer plane and the cross section, wherein the included angle is an obtuse angle.

The utility model discloses an electric toothbrush, it includes shell and toothbrush head, and above-mentioned electric toothbrush motor output structure, the motor of electric toothbrush motor output structure is installed in the shell, the linkage unit of electric toothbrush motor output structure with the toothbrush head is connected.

In one embodiment, it further comprises:

the toothbrush support is arranged in the shell, and the upper end and the lower end of the toothbrush support are respectively provided with the motor and the battery;

sealing member, cover are established on the output shaft body of motor, just the sealing member sets up the inside of shell, wherein, the sealing member has rigidity portion and elasticity portion, rigidity portion is fixed the top of toothbrush support, be equipped with the draw-in groove on the output shaft body of electric toothbrush motor output structure, elasticity portion card is gone into in the draw-in groove, wherein, the draw-in groove sets up on the whole circumferential direction of output shaft body.

In one embodiment, the elastic part is internally provided with an elastic long hole, the elastic long hole is rotatably sleeved outside the clamping groove, the diameter of the elastic long hole is smaller than the outer diameter of the clamping groove, and the length of the elastic long hole is matched with that of the clamping groove.

In one embodiment, the device further comprises a PCB board, an acrylic lens, a key and a vibration buffer piece;

the PCB is fixed on the toothbrush bracket;

the acrylic lens is arranged on the shell;

the button is arranged on the acrylic lens and can realize the functions of turning on and turning off the electric toothbrush and adjusting the mode after being pressed;

and the vibration buffer piece is arranged between the PCB and the shell.

Above-mentioned electric toothbrush motor output structure and electric toothbrush, one end through keeping away from the motor on the output shaft body sets up protruding unit, then be connected toothbrush head and linkage unit, then, utilize inside joint portion of linkage unit and protruding unit to cooperate, realize the firm connection of toothbrush head and output shaft body, it has avoided the toothbrush head not hard up or the defect that drops that appears after long-time the use, user experience has been promoted, and simultaneously, through setting joint portion to have elasticity, it can strengthen the interaction force between output shaft body and the toothbrush head, joint strength between the two has been improved, thereby electric toothbrush's life has been prolonged.

Drawings

FIG. 1 is a schematic structural view of an output structure of a motor of an electric toothbrush according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a connection unit of an output structure of a motor of an electric toothbrush according to an embodiment of the present application;

FIG. 3 is a partial cross-sectional view of an electric toothbrush motor output structure according to one embodiment of the present application;

FIG. 4 is a schematic view of a powered toothbrush according to one embodiment of the present application;

FIG. 5 is a split-type state view of an electric toothbrush according to an embodiment of the present application;

FIG. 6 is an exploded view of an electric toothbrush according to one embodiment of the present application;

FIG. 7 is a schematic view of another angled configuration of an electric toothbrush according to one embodiment of the present application;

fig. 8 is a cross-sectional view taken along line a-a of fig. 7.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1-2, fig. 1 is a schematic structural view illustrating an output structure of a motor of an electric toothbrush according to an embodiment of the present application; fig. 2 is a schematic view illustrating a structure of a connection unit of an output structure of a motor of an electric toothbrush according to an embodiment of the present application. The utility model discloses an electric toothbrush motor output structure, it includes:

one end of the output shaft body 1 is connected with the motor 2, and the other end of the output shaft body 1 extends out of the motor 2; the utility model discloses in, motor 2 is applied to electric toothbrush, and motor 2 can realize rotating or vibrating under the state of circular telegram, through the transmission effect of output shaft body 1, makes electric toothbrush's 6 swings of toothbrush head to realize user's the function of brushing teeth. In an embodiment of the present invention, the motor 2 may be accommodated in a housing of the electric toothbrush, for example, a cavity is provided in the electric toothbrush, and then the motor 2 is placed in the cavity for installation and fixation. In another embodiment of the present invention, the motor 2 can be also separately provided with a housing for protection, and the motor 2 with the housing is fixed on the electric toothbrush, so that the motor 2 can be conveniently overhauled and installed. The utility model discloses in, under normal assembly, output shaft body 1's one end can carry out erection joint through modes such as welding, spiro union with motor 2, and output shaft body 1's the other end expose to motor 2's outside, and for the ease of output shaft body 1 carries out erection joint with toothbrush head 6, output shaft body 1's the other end need expose to the outside certain length of shell, and this length can use the custom to carry out reasonable settlement according to toothbrush head 6's actual installation space and user.

The protruding unit 3 is arranged at one end, far away from the motor 2, of the output shaft body 1;

the connecting unit 4 is connected with a toothbrush head 6 of the electric toothbrush, wherein a clamping part 5 is arranged inside the connecting unit 4, the other end of the output shaft body 1 can extend into the connecting unit 4, and the protruding unit 3 is matched with the clamping part 5;

wherein, the clamping part 5 has elasticity. Specifically, joint portion 5 produces elastic deformation, can form certain elastic force to protruding unit 3, and it has strengthened the interact power between output shaft body 1 and the linkage unit 4, avoids becoming flexible between the two, has prolonged the life of toothbrush, has promoted user experience.

Referring to fig. 2, the connection unit 4 of the present invention includes:

the output shaft comprises a connecting body 41, wherein a containing hole 42 is formed in the lower end of the connecting body 41, and the other end of the output shaft body 1 can penetrate through the containing hole 42 and then extend into the connecting body 41. In an embodiment of the present invention, the accommodating hole 42 may be a blind hole, a through hole, or the like. In order to make the connection between the output shaft body 1 and the connecting body 41 more secure, the shape and the inner diameter of the receiving hole 42 may be configured to be matched with the shape and the outer diameter of the output shaft body 1, respectively.

In an embodiment of the present invention, a cavity can be opened inside the toothbrush head 6, and the connecting body 41 can be fixed in the cavity of the toothbrush head 6 by interference fit or glue pasting. Specifically, in order to enlarge the contact area between the connecting body 41 and the toothbrush head 6 and improve the connection strength, in an embodiment of the present invention, the connecting body 41 is a cone-like body with a thin upper part and a thick lower part, and the cavity shape of the toothbrush head 6 matches with the shape of the connecting body 41. In other embodiments of the present invention, the connecting body 41 may also be in the shape of a polygon pyramid, a cylinder, etc.

In an embodiment of the present invention, the fastening portion 5 includes an opening 51 and a buckle 52, the opening 51 is disposed on the sidewall of the connecting body 41, the buckle 52 is disposed in the opening 51, and the buckle 52 extends toward the inside of the connecting body 41, wherein the buckle 52 is engaged with the protruding unit 3.

Specifically, when the output shaft body 1 is inserted into the connecting body 41, the protruding unit 3 on the output shaft body 1 is clamped on the buckle 52, so as to ensure the firm fixation of the toothbrush head 6 and the output shaft body 1, and in addition, the opening 51 is arranged in the middle of the connecting body 41, which is mainly convenient for processing and forming the buckle 52. Alternatively, the opening 51 may be circular, rectangular, square, or the like, which is convenient to machine. In another embodiment of the present invention, the position of the opening 51 can be set at the top, bottom, etc. of the connecting body 41, which only needs to ensure that the buckle 52 is conveniently processed.

In an embodiment of the present invention, the cross-sectional shape of the protruding unit 3 is a triangle, the protruding unit 3 has a first surface 31 and a second surface 32 connected to each other, and the first surface 31 and the second surface 32 are two sides of the triangle. Referring to fig. 3, fig. 3 is a partial sectional view illustrating an output structure of a motor of an electric toothbrush according to an embodiment of the present invention, the latch 52 has a third surface 521 and a fourth surface 522 connected to each other, when the protrusion unit 3 is engaged with the latch 52, the first surface 31 is in contact with the third surface 521, and an included angle is formed between the first surface 31 and the fourth surface 522, and the included angle is an obtuse angle. Specifically, when the output shaft body 1 is sleeved on the connection unit 4, in order to ensure the firmness and safety of the connection, the first surface 31 is fully contacted with the third surface 521, or a part of the first surface 31 is at least fully contacted with a part of the third surface 521. An included angle is formed between the first surface 31 and the fourth surface 522, and the included angle is an obtuse angle, so that on one hand, the shape interference generated in the mutual contact sliding process of the first surface 31 and the third surface 521 is avoided, and on the other hand, the contact position of the first surface 31 and the third surface 521 can be limited, so that the connection position precision and the connection structure strength of the protruding unit 3 and the buckle 52 can be improved, and the defect of looseness or falling off is avoided. The included angle formed between the first surface 31 and the fourth surface 522 may be 120 °, 135 °, 150 °, and the like.

In another embodiment of the present invention, the cross-sectional shape of the protrusion unit 3 may also be rectangular, spherical, etc., and accordingly, the first surface 31 and the second surface 32 may also be flat, curved, spherical, etc. Preferably, the third surface 521 and the fourth surface 522 of the buckle 52 may also have shapes such as a plane, a curved surface, and a spherical surface, and the specific shape of the third surface 521 needs to be in contact fit with the first surface 31 to achieve the connection function.

The utility model discloses an in the embodiment, for the convenience of once only process out protruding unit 3, reduce manufacturing procedure, reduce the processing degree of difficulty, keep away from on the output shaft body 1 the one end of motor 2 is equipped with a cross section 11, protruding unit 3 sets up the upper surface department of cross section 11.

The utility model discloses an in the embodiment, when protruding unit 3 and buckle 52 cooperate, in order to carry on spacingly to the position of buckle 52, be equipped with a scarf 12 on the output shaft body 1, scarf 12 is connected with cross section 11, just scarf 12 with a contained angle has between the cross section 11, the contained angle is the obtuse angle. Preferably, the angle between the chamfer 12 and the transverse plane 11 is approximately 120 ° -160 °; if the included angle between the chamfer 12 and the cross section 11 can be set to 135 °, 150 °, etc., in other embodiments of the present invention, the specific included angle between the chamfer 12 and the cross section 11 can be reasonably adjusted according to actual conditions. Optionally, when the cross section 11, the chamfer 12 and the protrusion unit 3 are machined in a specific process, the cross section, the chamfer and the protrusion unit can be machined and formed at one time through a numerical control machine, the operation is simple and convenient, the number of working procedures is small, and therefore the machining cost can be effectively reduced.

Referring to fig. 4 and 5, fig. 4 is a schematic view illustrating a structure of an electric toothbrush according to an embodiment of the present application, and fig. 5 is a split state view illustrating the electric toothbrush according to an embodiment of the present application. The utility model discloses an electric toothbrush, it includes shell 7 and toothbrush head 6 to and above-mentioned electric toothbrush motor output structure, electric toothbrush motor output structure's motor 2 is installed in the shell 7, electric toothbrush motor output structure's linkage unit 4 with toothbrush head 6 is connected. The utility model discloses an embodiment, cavity formation cavity in the shell 7, the motor 2 of electric toothbrush motor output structure is installed in the cavity, and wherein, the shape of shell 7 can be for shapes such as cylinder, cuboid.

Referring to fig. 6, fig. 6 is an exploded view of an electric toothbrush according to an embodiment of the present invention, which further includes:

the toothbrush holder 8 is arranged in the shell 7, and the upper end and the lower end of the toothbrush holder 8 are respectively provided with the motor 2 and the battery 10; in other embodiments of the present invention, the motor 2 and the battery 10 may be installed on the left and right sides of the toothbrush holder 8 or on the same side. The toothbrush holder 8 and the housing 7 may be connected by means of bolts, bonding, etc.

Sealing member 9, the cover is established on the output shaft body 1 of motor 2, just sealing member 9 sets up the inside of shell 7, wherein, sealing member 9 has rigidity portion 91 and elastic component 92, rigidity portion 91 is fixed the top of toothbrush support 8, lie in on the output shaft body 1 of electric toothbrush motor output structure the outside part of shell 7 is equipped with draw-in groove 13, elastic component 92 card is gone into in the draw-in groove 13, wherein, for improving holistic sealed effect, draw-in groove 13 sets up the whole circumferential direction of output shaft body 1.

In an embodiment of the present invention, the rigid portion 91 is a fixing bracket, the fixing bracket can be made of hard rubber material, such as hard plastic, metal sheet, etc., the fixing bracket is sleeved on the output shaft body 1, then the elastic portion 92 (such as silica gel sleeve, rubber sleeve, etc.) is sleeved on the fixing bracket to form the sealing member 9, and the sealing member 9 can prevent water from entering the inside of the casing 7 from the gap between the output shaft body 1 and the casing 7, thereby playing a role of water proofing.

In an embodiment of the present invention, the tail portion of the elastic portion 92 may be provided with an external thread, the upper portion of the rigid portion 91 may be provided with an internal thread, and the elastic portion 92 and the rigid portion 91 are hermetically connected by the cooperation of the external thread and the internal thread. In another embodiment of the present invention, the tail portion of the elastic portion 92 may be provided with an internal thread, and the upper portion of the rigid portion 91 may be provided with an external thread, so that the elastic portion 92 and the rigid portion 91 are hermetically connected by the cooperation of the external thread and the internal thread. In another embodiment of the present invention, the elastic portion 92 and the rigid portion 91 may be connected by bonding or the like.

Referring to fig. 7 and 8, fig. 7 is a schematic view illustrating another angle of the electric toothbrush according to an embodiment of the present application, and fig. 8 is a sectional view taken along line a-a of fig. 7. The utility model discloses an elasticity portion 92's inside has elasticity slot hole 921, elasticity slot hole 921 is established in the rotatory cover draw-in groove 13 outside, the diameter of elasticity slot hole 921 is less than draw-in groove 13's external diameter, elasticity slot hole 921 the length with draw-in groove 13's length phase-match.

The utility model discloses an embodiment, the one end of elasticity portion 92 forms elasticity slot hole 921 after the incurving extends, establishes this elasticity slot hole 921 rotation cover on draw-in groove 13, and it can not influence the normal rotation or the shake of output shaft body 1, will moreover the diameter of elasticity slot hole 921 sets to be less than the external diameter of draw-in groove 13 can increase the area of contact of elasticity portion 92 and draw-in groove 13 to improve the sealed effect of elasticity portion 92. Meanwhile, in order to avoid the elastic part 92 sliding up and down along the card slot 13, the relative friction between the elastic part 92 and the card slot 13 is reduced, the service life of the elastic part 92 is prolonged, and the length of the elastic long hole 921 is matched with that of the card slot 13.

In an embodiment of the present invention, the electric toothbrush further comprises a PCB 11, an acrylic lens 16, a button 15 and a vibration buffer 14;

the PCB 11 is fixed on the toothbrush bracket 8; alternatively, the PCB 11 may be fixed to the toothbrush holder 8 by means of screws, snaps, welding, or the like;

the acrylic lens 16 is arranged on the shell 7;

the button 15 is arranged on the acrylic lens 16, and the button 15 can realize the functions of starting/shutting down the electric toothbrush, adjusting the mode and the like after being pressed; in this embodiment, the acrylic lens 16 can be used for installing the key 15, so as to avoid the defect of poor waterproof effect caused by directly installing the key 15 on the housing 7, and improve the appearance effect of the electric toothbrush.

And a vibration damper 14 disposed between the PCB board 11 and the case 7. Optionally, the vibration buffer 14 may be a foam, a silicone pad, or the like, and the foam is disposed between the PCB 11 and the housing 7 for alleviating vibration of the electric toothbrush during operation. The utility model discloses an in the embodiment, can also offer the through-hole with vibration bolster 14, the position of the great components and parts of the high protrusion on PCB board 11 can be dodged to the position of its through-hole to play the effect of protection PCB board 11, simultaneously, can also reduce vibration bolster 14's total weight, save bolster 14's manufacturing cost.

To sum up, the utility model discloses an one end of keeping away from motor 2 on output shaft body 1 sets up protruding unit 3, then be connected toothbrush head 6 with linkage unit 4, then, utilize linkage unit 4 inside joint portion 5 and protruding unit 3 to cooperate, realize toothbrush head 6 and output shaft body 1's firm being connected, it has avoided the toothbrush head 6 not hard up or the defect that drops that appears after long-time the use, user experience has been promoted, and simultaneously, through setting joint portion 5 to have elasticity, it can strengthen the interaction force between output shaft body 1 and the toothbrush head 6, joint strength between the two has been improved, thereby electric toothbrush's life has been prolonged.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. An electric toothbrush motor output structure, comprising:

a motor;

one end of the output shaft body is connected with the motor, and the other end of the output shaft body extends out of the motor;

the protruding unit is arranged at one end, far away from the motor, of the output shaft body;

the connecting unit is connected with a toothbrush head of the electric toothbrush, wherein a clamping part is arranged inside the connecting unit, and the other end of the output shaft body can extend into the connecting unit and enables the protruding unit to be matched with the clamping part;

wherein, the joint portion has elasticity.

2. The electric toothbrush motor output structure of claim 1, wherein the connection unit comprises:

the connecting body, the lower extreme of connecting the body is equipped with an accommodation hole, the other end of output shaft body can pass the accommodation hole back stretches into in the connecting body.

3. The electric toothbrush motor output structure of claim 2, wherein the clip portion comprises an opening and a clip, the opening is disposed on a side wall of the connecting body, the clip is disposed in the opening, and the clip bends and extends toward the inside of the connecting body, wherein the clip is engaged with the protrusion unit.

4. The output structure of the electric toothbrush motor according to claim 3, wherein the protrusion unit has a first surface and a second surface connected to each other, the latch has a third surface and a fourth surface connected to each other, when the protrusion unit is engaged with the latch, the first surface contacts the third surface, and an included angle is formed between the first surface and the fourth surface, and the included angle is an obtuse angle.

5. The electric toothbrush motor output structure of claim 1, wherein an end of the output shaft body remote from the motor is provided with a cross section, and the protrusion unit is provided at an upper surface of the cross section.

6. The output structure of the electric toothbrush motor according to claim 5, wherein the output shaft body is provided with a chamfered surface, the chamfered surface is connected with the cross section, and an included angle is formed between the chamfered surface and the cross section, and the included angle is an obtuse angle.

7. An electric toothbrush comprising a housing and a head, and an electric toothbrush motor output structure according to any one of claims 1 to 6, the motor of the electric toothbrush motor output structure being mounted in the housing, the connection unit of the electric toothbrush motor output structure being connected to the head.

8. The electric toothbrush of claim 7, further comprising:

the toothbrush support is arranged in the shell, and the upper end and the lower end of the toothbrush support are respectively provided with the motor and the battery;

the sealing member, the cover is established on the output shaft body of motor, just the sealing member sets up the inside of shell, wherein, the sealing member has rigidity portion and elasticity portion, rigidity portion is fixed the top of toothbrush support, lie in on the output shaft body of electric toothbrush motor output structure the outside part of shell is equipped with the draw-in groove, elasticity portion card is gone into in the draw-in groove, wherein, the draw-in groove sets up the whole circumferential direction of output shaft body is upwards.

9. The electric toothbrush according to claim 8, wherein the elastic portion has an elastic long hole inside, the elastic long hole is rotatably sleeved outside the slot, the diameter of the elastic long hole is smaller than the outer diameter of the slot, and the length of the elastic long hole matches with the length of the slot.

10. The electric toothbrush according to claim 8, further comprising a PCB board, an acryl lens, a button, and a vibration buffer;

the PCB is fixed on the toothbrush bracket;

the acrylic lens is arranged on the shell;

the button is arranged on the acrylic lens and can realize the functions of turning on and turning off the electric toothbrush and adjusting the mode after being pressed;

and the vibration buffer piece is arranged between the PCB and the shell.

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