CN217660262U

CN217660262U - Rotary electric toothbrush mechanism with U-shaped groove

Info

Publication number: CN217660262U
Application number: CN202221824720.6U
Authority: CN
Inventors: 吴呈祥; 章冠荣
Original assignee: Xiamen Chuangzhi Health Products Co ltd
Current assignee: Xiamen Chuangzhi Health Products Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-10-28
Anticipated expiration: 2032-07-14

Abstract

The utility model provides a take rotatory electric toothbrush mechanism in U type groove, includes the casing of compriseing main support and shell, install the motor in the main support fixed bolster, rotate wheel, U type connecting piece and brush-holder stud, the output shaft of motor in rotate the wheel, rotate and take turns to and be equipped with eccentric stilt, U type connecting piece is equipped with a U type groove, the stilt is rotationally connected in U type inslot, U type connecting piece still fixedly connected with brush-holder stud, the brush-holder stud sleeve that the brush-holder stud sees through the fixed bolster front end stretches out outside the fixed bolster, borrows to take the rotation of eccentric stilt to take turns to rotate, the stilt slides from this in U type groove and drives the brush-holder stud and do the angle reciprocating rotation that rotates the contained angle for theta. The utility model discloses, electric toothbrush's transmission structure adopts the stationary column eccentric structure movably who rotates the wheel to connect at the U type inslot of U type connecting piece, has realized electric toothbrush's transmission structure's high-efficient transmission, reduces the problem that loss energy is big in the transmission course, improves electric toothbrush's life.

Description

Rotary electric toothbrush mechanism with U-shaped groove

Technical Field

The utility model belongs to the technical field of electric toothbrush, concretely relates to take rotatory electric toothbrush mechanism in U type groove.

Background

Along with the improvement of living standards of people, the electric toothbrush is more and more widely applied to the life of people, a gear connecting rod mechanism is mostly adopted for realizing the reciprocating rotation of a rotating shaft on the market, a motor shaft is sleeved with a pinion and then meshed with a gearwheel, a column is formed at the eccentric position on the gearwheel and serves as a driving rod, a driven rod is sleeved on an output shaft, the two rods are connected through a connecting rod using a pin, the gearwheel of the driving rod does circular motion to drive the output shaft of the driven rod to do reciprocating swing, and therefore the rotary motion of the electric toothbrush is realized.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides a take rotatory electric toothbrush mechanism in U type groove, the purpose is through adopting but the direct connection motor and the output shaft to realize reciprocal rotatory drive mechanism, utilizes less part, the higher transmission structure of mechanical efficiency to reduce the big problem of loss energy in the transmission course.

In order to solve the problem, the utility model adopts the technical scheme as follows: the utility model provides a take rotatory electric toothbrush mechanism in U type groove, includes the casing of compriseing main support and shell, be equipped with the fixed bolster in the main support, install the motor in the fixed bolster, rotate wheel, U type connecting piece and brush-holder stud, the output shaft of motor in rotate the wheel, it is equipped with eccentric stationary mast on the rotation wheel, U type connecting piece is equipped with a U type groove, the stationary mast rotationally connect in U type inslot, just U type connecting piece still fixedly connected with brush-holder stud, just the brush-holder stud sees through the brush-holder stud sleeve of fixed bolster front end stretches out outside the fixed bolster, borrows by taking the rotation wheel rotation of eccentric stationary mast, the stationary mast is in U type inslot slides from this and drives the brush-holder stud is the reciprocal rotation of angle that rotates the contained angle for theta. The electric toothbrush drives the bristles on the brush rod to rotate left and right through the rotation of the brush rod so as to achieve the purpose of brushing teeth.

Furthermore, a supporting sleeve is arranged between the brush rod and the brush rod sleeve.

Furthermore, support its material of cover and be one in rubber or silica gel or TPE. Through set up between brush-holder stud and brush-holder stud sleeve and support the cover, utilize the elasticity that supports the cover to realize brush-holder stud and the telescopic sealing connection of brush-holder stud, reach the waterproof purpose of inside seal of toothbrush and do not influence the reciprocating rotation of brush-holder stud.

Further, the included rotation angle theta is a rotation angle of 20-120 degrees. The fixed column on the rotating wheel is matched with the U-shaped groove of the fixed column and the U-shaped connecting piece, the rotating wheel rotates to drive the fixed column to rotate eccentrically, therefore, the eccentrically-rotated fixed column drives the U-shaped connecting piece to rotate at a certain rotation included angle, and meanwhile, in the rotating process of the fixed column, the fixed column is matched with different positions of the U-shaped groove, so that the transmission effect of the fixed column on the U-shaped connecting piece is realized.

Furthermore, the U-shaped connecting piece is made of one of POM, PC or ABS. POM, PC or ABS all have good physical, mechanical properties, and POM material has good physical, mechanical and chemical properties especially has excellent antifriction performance, can provide the antifriction performance of U type connecting piece, prevents U type groove friction loss deformation of U type connecting piece, has improved electric toothbrush's life.

Further, the material of the rotating wheel is one of POM, PC or ABS. POM, PC or ABS all have good physics, mechanical properties, and the stationary column on the gyro wheel and the gyro wheel is rotated in order to realize the transmission effect to U type connecting piece better, adopts the material of antifriction performance especially POM to can improve electric toothbrush's life greatly.

Furthermore, the length L of the U-shaped groove is larger than twice of the distance between the circle center of the rotating wheel and the circle center of the fixed column. The length L of the groove of the U-shaped groove is larger than the distance from the circle center of the rotating wheel to the circle center of the fixed column by two times, so that the fixed column can be always positioned in the U-shaped groove in the rotating process of the rotating wheel, and the fixed column is prevented from being separated from the groove.

The utility model discloses, electric toothbrush's transmission structure adopts the stationary column eccentric structure movably who rotates the wheel to connect at the U type inslot of U type connecting piece, has realized electric toothbrush's transmission structure's high-efficient transmission, reduces the problem that loss energy is big in the transmission course, improves electric toothbrush's life.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the electric toothbrush of the present invention.

Fig. 2 is one of the schematic internal structures of the electric toothbrush.

Fig. 3 is a second schematic view of the internal structure of the electric toothbrush.

Fig. 4 is a schematic view showing an internal sectional structure of the electric toothbrush.

Fig. 5 is a schematic view of the connection structure of the U-shaped connecting member of the electric toothbrush.

Fig. 6 is a schematic view of the rotation included angle between the U-shaped connecting member and the fixed column of the rotating wheel.

Wherein, 1-shell, 11-main bracket, 12-shell, 2-brush rod, 3-fixed bracket, 31-brush rod sleeve, 4-motor, 5-rotating wheel, 51-fixed column, 6-U type connecting piece, 61-U type groove, 7-supporting sleeve.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the specific embodiments below.

As shown in figure 1, the rotary electric toothbrush mechanism with the U-shaped groove comprises a shell 1, wherein the shell 1 is composed of a main support 11 and a shell 12, the main support 11 is connected inside the shell 12, a fixed support 3 is arranged in the main support, the main support 11 is connected with the fixed support 3 through a common physical mechanical matching mode of the main support 11, and a rechargeable battery or a replaceable battery and the like can be installed in the shell 1 by adopting the known technology.

Referring to fig. 2 and 3, a motor 4, a rotating wheel 5, a U-shaped connecting member 6 and a brush rod 2 are installed in a fixing bracket 3, bristles (not shown) can be installed on the brush rod 2, the rotating wheel 5 is connected to an output shaft of the motor 4, an eccentric fixed column 51 is arranged on the rotating wheel 5, referring to fig. 5, the U-shaped connecting member 6 is provided with a U-shaped groove 61, the fixed column 51 is rotatably connected in the U-shaped groove 61, in order to prevent the fixed column 51 from being separated from the U-shaped groove 61 in the axial direction, the fixed column 51 is provided with a cap column, the diameter of the cap column is larger than that of the U-shaped groove 61, and the U-shaped groove 61 is inserted into the fixed column 51 to realize the axial positioning of the fixed column 51. The other end of the U-shaped connecting piece 6 is connected with a brush rod 2, the brush rod 2 can be formed into a U-shaped connecting piece 6 through insert injection molding, the brush rod 2 extends out of the fixed support 3 through a brush rod sleeve 31 at the front end of the fixed support 3, the fixed column 51 slides in the U-shaped groove 61 by means of the rotation of the rotating wheel 5 with the eccentric fixed column 51, the brush rod 2 is driven to rotate in an angle of theta in a reciprocating way by the sliding of the fixed column 51 in the U-shaped groove 61, the electric toothbrush drives the bristles on the brush rod 2 to rotate left and right through the rotation of the brush rod 2, so as to achieve the purpose of brushing teeth, in the embodiment, referring to FIG. 6, the rotating angle of theta is 20-120 degrees, the rotating angle of theta is an angle formed when the fixed column 51 of the rotating wheel 5 is positioned at the maximum eccentricity distance of two sides, the fixed column 51 is matched with the U-shaped groove 61 of the U-shaped connecting piece 6, the fixed column 51 is driven to rotate eccentrically by the rotation of the rotating wheel 5, therefore, the fixed column 51 which rotates eccentrically drives the U-shaped connecting piece 6 to rotate at a certain rotation included angle, the size of the rotation angle determines the brushing amplitude of bristles of the electric toothbrush, particularly, when the rotation angle is set to be 55 degrees, the brushing amplitude of the bristles of the electric toothbrush is proper, meanwhile, in the rotating process of the fixed column 51, the fixed column 51 is matched with different positions of the U-shaped groove 61, and the transmission effect of the fixed column 51 on the U-shaped connecting piece 6 is realized.

In order to prevent the fixed column 51 from being out of the groove in the process of being matched with the U-shaped groove 61, in the embodiment, the length L of the groove of the U-shaped groove 61 is larger than the distance from the circle center of the rotating wheel 5 to the circle center of the fixed column 51 by two times, so that the fixed column 51 can be always positioned in the U-shaped groove 61 in the rotating process of the rotating wheel 5 of the fixed column 51, and the fixed column 51 is prevented from being out of the groove.

In this embodiment, the U-shaped connecting member 6 and the rotating wheel 5, especially the fixed column 51 on the rotating wheel 5, are made of one of POM, PC or ABS, and the POM, PC or ABS have excellent physical and mechanical properties, especially the POM material has excellent physical, mechanical and chemical properties, especially excellent friction resistance, so as to provide wear resistance of the U-shaped connecting member 6 and the rotating wheel 5, improve the friction wear resistance of the U-shaped groove 61 of the U-shaped connecting member 6 or the wear resistance of the fixed column 51 on the rotating wheel 5, prevent the long-term friction fit between the U-shaped groove 61 and the fixed column 51 on the rotating wheel 5 from deformation, and improve the service life of the electric toothbrush.

Referring to fig. 3 and 4, a supporting sleeve 7 is arranged between the brush rod 2 and the brush rod sleeve 31, the supporting sleeve 7 is connected between the brush rod 2 and the brush rod sleeve 31 in a sealing mode, the sealing performance between the brush rod 2 and the rotating mechanism of the toothbrush is guaranteed, the inner sealing and waterproof purpose of the toothbrush is achieved, the material of the supporting sleeve 7 is made of rubber or silica gel or TPE, and the elasticity of the material is utilized, so that the brush rod 2 can be guaranteed not to influence the transmission of the reciprocating rotation of the rotating mechanism to the brush rod 2 on the sealing basis.

The above embodiments only express the embodiments of the present invention, and the description thereof is specific and detailed, but not 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.

Claims

1. The utility model provides a take U type groove rotation electric toothbrush mechanism which characterized in that: include the casing of constituteing by main support and shell, be equipped with the fixed bolster in the main support, install the motor in the fixed bolster, rotate wheel, U type connecting piece and brush-holder stud, the output shaft of motor in rotate the wheel, it is equipped with eccentric reference column to rotate to take turns, U type connecting piece is equipped with a U type groove, the reference column rotationally connect in U type inslot, just U type connecting piece still fixedly connected with brush-holder stud, just the brush-holder stud sees through the brush-holder stud sleeve of fixed bolster front end stretches out outside the fixed bolster, borrows by taking the rotation wheel rotation of eccentric reference column, the reference column is in slide from this and drive in U type inslot the brush-holder stud is made and is rotated the reciprocal rotation of angle that the contained angle is theta.

2. The rotary electric toothbrush mechanism with a U-shaped groove of claim 1, wherein: and a support sleeve is also arranged between the brush rod and the brush rod sleeve.

3. The rotary electric toothbrush mechanism with U-shaped groove of claim 2, characterized in that: the support sleeve is made of rubber or silica gel or TPE.

4. The rotary electric toothbrush mechanism with a U-shaped groove of claim 1, wherein: the rotation included angle theta is a rotation angle of 20-120 degrees.

5. The rotary electric toothbrush mechanism with a U-shaped groove of claim 1, wherein: the U-shaped connecting piece is made of one of POM, PC or ABS.

6. The rotary electric toothbrush mechanism with U-shaped groove as claimed in claim 1, characterized in that: the rotating wheel is made of one of POM, PC or ABS.

7. The rotary electric toothbrush mechanism with a U-shaped groove of claim 1, wherein: the length L of the U-shaped groove is larger than twice of the distance between the circle center of the rotating wheel and the circle center of the fixed column.