CN216439353U

CN216439353U - Mechanical driving electric toothbrush

Info

Publication number: CN216439353U
Application number: CN202122923453.XU
Authority: CN
Inventors: 况国
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-05-06
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses a mechanical transmission type electric toothbrush in the technical field of electric toothbrushes, which comprises a toothbrush head part and a driving part, wherein the driving part comprises an external shell, an internal motor, an internal power supply and an internal swinging device; an output gear is fixedly arranged on an output shaft of the motor in a penetrating mode, the swinging device comprises two swinging gears, the swinging gears are duplicate gears and comprise full-tooth gears and half-tooth gears, the driving portion further comprises a connecting shaft, the bottom of the brush head portion is detachably connected to the top of the connecting shaft, and a transmission gear is fixedly arranged at the bottom of the connecting shaft in a penetrating mode; compared with the prior art, the brush head part has the advantages that the brush head part can swing up and down in a reciprocating mode through the mechanical structure, the structure is simpler, a chip is not needed for control, the manufacturing cost is low, and the mechanical structure is longer in service life and more stable than an electronic structure.

Description

Mechanical driving electric toothbrush

Technical Field

The utility model relates to the technical field of electric toothbrushes, in particular to a mechanical transmission type electric toothbrush.

Background

Electric toothbrush makes the brush head produce high-frequency vibration through the quick rotation or the vibration of motor core, decomposes into slight foam with toothpaste in the twinkling of an eye, goes deep into clean slit between the teeth, and meanwhile, the blood circulation of the promotion oral cavity of quivering of brush hair has the massage effect to gum tissue, divides in principle, and electric toothbrush has two categories: rotation and vibration. The rotating toothbrush is simple in principle, the circular brush head is driven to rotate through the motor, the friction effect is enhanced while the ordinary tooth brushing action is carried out, the rotating toothbrush is high in force, the tooth surface is cleaned completely, the tooth space is cleaned relatively weakly, the tooth abrasion is large, the vibrating toothbrush is more complex, and the price is higher. The electric driving vibration motor is arranged in the vibration type toothbrush, the brush head can generate high-frequency swing perpendicular to the brush handle direction, the swing amplitude is small and is about 5 mm respectively, the largest swing amplitude of the industry is 6 mm, the high-frequency swing brush head can efficiently finish the tooth brushing action during tooth brushing, and the mixture of toothpaste and water in the oral cavity can generate a large amount of tiny bubbles due to the vibration of more than 30000 times per minute, and the pressure generated when the bubbles burst can deeply penetrate through tooth gaps to clean dirt.

Most of existing vibrating toothbrushes are magnetic suspension motors, the rotation of the motors in different directions is achieved through changing the current direction to swing the bristles up and down, a control chip is usually needed to control the vibrating toothbrush, the manufacturing cost is high, and the vibrating toothbrush has requirements on the working precision.

In summary, the applicant has proposed a mechanically driven electric toothbrush.

SUMMERY OF THE UTILITY MODEL

In view of the problems of complex structure and high manufacturing cost of the vibrating electric toothbrush in the prior art, the technical scheme of the utility model provides the mechanical transmission type electric toothbrush which solves the problems.

In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows:

a mechanical transmission type electric toothbrush comprises a toothbrush head part and a driving part, wherein the driving part comprises an external shell, an internal motor, an internal power supply and an internal swinging device, and the motor is electrically connected with the power supply; the output shaft of the motor is connected with an output gear, the swinging device comprises two swinging gears, the swinging gears are duplicate gears and comprise full-tooth gears and half-tooth gears, the full-tooth gears of the two swinging gears are meshed, the full-tooth gears of the output gear and one of the swinging gears are meshed, the driving part further comprises a connecting shaft, the bottom of the brush head part is detachably connected to the top of the connecting shaft, the bottom of the connecting shaft is connected with a transmission gear in a rotating mode, and the two half-tooth gears are meshed with the transmission gear in a single-contact mode respectively.

By arranging two duplex oscillating gears, an output gear of a motor is meshed with a full-tooth gear of one oscillating gear, the output gear rotates forwards to drive the full-tooth gear meshed with the output gear to rotate reversely, the reverse-rotating full-tooth gear drives the other full-tooth gear to rotate forwards, the corresponding two half-tooth gears also rotate forwards in a reverse direction, a transmission gear is meshed with the forward-rotating half-tooth gear to drive a brush head part to swing in one direction, then the teeth of the forward-rotating half-tooth gear are meshed with the transmission gear and then idle, the teeth of the reverse-rotating half-tooth gear are meshed with the transmission gear to drive the brush head part to swing in the other direction, and the reciprocating motion is realized by repeating the steps, when the toothbrush is used, the toothbrush is horizontally held, the brush head part can do reciprocating swing up and down along the direction of tooth gaps, the cleaning function of teeth is realized, and the mechanical structure is driven, the control chip is not needed to control the current, the structure is very simple, the manufacturing cost is low, the use is convenient, and the service life of the mechanical structure is longer.

Further limiting, connecting lines of the axes of the two swing gears and the axes of the transmission gears are arranged in an isosceles triangle, and the axes of the two swing gears are used as base angles of the isosceles triangle; the two oscillating gears and the transmission gear are arranged in such a way, so that the space inside the shell can be better utilized, and the space is saved and the device is compact.

Further limiting, a speed regulating switch is arranged on the shell, and the speed regulating switch and the motor are electrically connected with a power supply; the speed regulating switch is arranged to control the rotating speed of the motor so as to adapt to crowds with different bearing degrees, and the application range is wider.

Further limiting, a rectangular section is arranged at the top of the connecting shaft, a limiting lug is further arranged on the rectangular section, and a mounting groove matched with the rectangular section and the limiting lug is formed in the bottom of the brush head; the brush head can be prevented from being separated through the limit bump in a limiting mode, and the rectangular section can prevent the brush head from rotating relative to the connecting shaft when rotating, so that the using effect is not affected.

Further limiting, a power supply cavity, a motor cavity and a swing cavity are at least sequentially arranged in the shell from bottom to bottom, a power supply is placed in the power supply cavity, a motor is placed in the motor cavity, and a swing device is fixed in the swing cavity; like this at the inside space that plans the casing that sets up power supply chamber, motor chamber and swing chamber can be better of casing, inner structure is more neat, also can be better utilize the space.

Further defined, the power source is a rechargeable battery; the rechargeable battery is adopted, so that convenience and endurance are guaranteed, and safety is high.

Compared with the prior art, the brush head part has the advantages that the brush head part can swing up and down in a reciprocating mode through the mechanical structure, the structure is simpler, a chip is not needed for control, the manufacturing cost is low, and the mechanical structure is longer in service life and more stable than an electronic structure.

Drawings

FIG. 1 is a front split view of the present invention;

FIG. 2 is a front internal portion schematic view of the drive section;

FIG. 3 is a schematic view of a swing apparatus;

FIG. 4 is a simplified schematic illustration of a gear mesh state;

figure 5 is a partial cross-sectional view of the right side of the brushhead portion.

The corresponding labels in the figures are: 1-brush head part, 11-mounting groove, 2-driving part, 3-shell, 31-power cavity, 32-motor cavity, 33-swinging cavity, 4-power, 5-motor, 51-output shaft, 6-output gear, 7-swinging gear, 71-right full-tooth gear, 72-right half-tooth gear, 73-left full-tooth gear, 74-left half-tooth gear, 8-transmission gear, 9-connecting shaft, 91-rectangular section, 92-limit bump, 10-left gear shaft, 12-speed-regulating switch, 13-right gear shaft, A1-first transmission tooth, A2-second transmission tooth, A3-third transmission tooth, B1-first right half tooth, B2-second right half tooth, B3-third right half tooth, b4-fourth right half tooth, C1-first left half tooth, C2-second left half tooth, C3-third left half tooth, C4-fourth left half tooth.

Detailed Description

In order that those skilled in the art can better understand the technical solution of the present invention, the following embodiments are further described with reference to the accompanying drawings and examples.

As shown in fig. 1-5, a mechanical transmission type electric toothbrush comprises a brush head part 1 and a driving part 2, wherein the driving part 2 comprises an outer shell 3, an inner motor 5, an inner power source 4 and an inner swinging device, the power source 4, the motor 5 and the swinging device are all arranged inside the shell 3, the motor 5 is electrically connected with the power source 4, the shell 3 is also provided with a speed regulating switch 12, the speed regulating switch 12 controls the running speed of the motor 5, the speed regulating switch 12 and the motor 5 are electrically connected with the power source 4, and the power source 4 is a rechargeable battery; a power supply cavity 31, a motor cavity 32 and a swing cavity 33 are at least sequentially arranged in the shell 3 from bottom to bottom, a power supply 4 is placed in the power supply cavity 31, a motor 5 is placed in the motor cavity 32, and a swing device is fixed in the swing cavity 33; an output gear 6 is fixedly arranged on an output shaft 51 of the motor 5 in a penetrating mode, the swinging device comprises two swinging gears 7, each swinging gear 7 is a duplicate gear and comprises a right full-tooth gear 71, a right half-tooth gear 72, a left full-tooth gear 73 and a left half-tooth gear 74, the left full-tooth gear 73 and the left half-tooth gear 74 form the duplicate gear, the right full-tooth gear 71 and the right half-tooth gear 72 form the duplicate gear, the output gear 6 is meshed with the right full-tooth gear 71, the driving part 2 further comprises a connecting shaft 9, a rectangular section 91 is arranged at the top of the connecting shaft 9, a limiting bump 92 is further arranged on the rectangular section 91, and a mounting groove 11 matched with the rectangular section 91 and the limiting bump 92 is formed in the bottom of the brush head part 1; the bottom of the connecting shaft 9 is fixedly connected with a transmission gear 8 in a penetrating manner, the right half-tooth gear 72 and the left half-tooth gear 74 are respectively meshed with the transmission gear 8 in a one-touch manner, in the one-touch manner in the embodiment, when the right half-tooth gear 72 is meshed with the transmission gear 8, the teeth on the left half-tooth gear 74 are completely separated from the teeth on the transmission gear 8, and when the transmission gear 8 is meshed with the left half-tooth gear 74, the teeth on the right half-tooth gear 72 are completely separated from the teeth on the transmission gear 8; the connecting line of the axle center point of the right full-tooth gear 71, the axle center point of the left full-tooth gear 73 and the axle center point of the transmission gear 8 is in an isosceles triangle shape, and the connecting line of the axle center points of the right full-tooth gear 71 and the left full-tooth gear 73 is used as the bottom edge of the isosceles triangle; the transmission gear 8 is also half-tooth, the left full-tooth gear 73 is rotationally fixed in the swinging cavity 33 through the left gear shaft 10, and the right full-tooth gear 71 is rotationally fixed in the swinging cavity 33 through the right gear shaft 13; the number of teeth of each gear can be set according to the swing angle required by people, and the brush head part 1 is made of a deformable material and is directly and forcibly pushed into and connected with the connecting shaft 9.

By arranging two duplex oscillating gears 7, an output gear 6 of a motor is meshed with a right full-tooth gear 71 of one oscillating gear 7, the output gear 6 rotates clockwise to drive the right full-tooth gear 71 to rotate anticlockwise, the right full-tooth gear 71 rotates anticlockwise to drive a left full-tooth gear 73 to rotate clockwise, a corresponding right half-tooth gear 72 also rotates anticlockwise, a left half-tooth gear 74 rotates clockwise, a transmission gear 8 is meshed with the right half-tooth gear 72 rotating anticlockwise to drive a brush head part to swing in one direction, after the right half-tooth gear 72 rotating anticlockwise is meshed with the transmission gear 8 and is disengaged, the left half-tooth gear 74 rotating clockwise is meshed with the transmission gear 8 to drive the brush head part to swing in the opposite direction, and the brush head part 1 performs reciprocating motion by repeating the steps, when the toothbrush is used, the toothbrush is horizontally held, the brush head part 1 can perform reciprocating swing up and down along the direction of a gap between teeth, the tooth cleaning function is realized, the mechanical structure is driven, the control chip is not required to control the current of the tooth cleaning device, the structure is very simple, the manufacturing cost is low, the use is convenient, and the service life of the mechanical structure is longer; the arrangement of the two oscillating gears 7 and the transmission gear 8 can better utilize the space in the shell, thereby saving more space and being more compact; a speed regulating switch 12 is arranged to control the rotating speed of the motor 5 so as to adapt to crowds with different bearing degrees, and the application range is wider; the brush head part can be prevented from falling off by limiting through the limiting lug 92, and the rectangular section 91 can prevent the brush head part 1 from rotating relative to the connecting shaft 9 when rotating, so that the use effect is influenced; therefore, the power supply cavity 31, the motor cavity 32 and the swing cavity 33 are arranged in the shell 3, so that the space in the shell 3 can be better planned, the internal structure is more orderly, and the space can be better utilized; the rechargeable battery is adopted, so that convenience and endurance are guaranteed, and safety is high.

The right half-tooth gear 72 is provided with a first right half-tooth B1, a second right half-tooth B2, a third right half-tooth B3 and a fourth right half-tooth B4 in a clockwise manner, the left half-tooth gear 74 is provided with a first left half-tooth C1, a second left half-tooth C2, a third left half-tooth C3 and a fourth left half-tooth C4 in a clockwise manner, the transmission gear 8 is provided with a first transmission tooth A1, a second transmission tooth A2 and a third transmission tooth A3 in a clockwise manner, in operation, the clockwise rotating output gear 6 drives the right full-tooth gear 71 to rotate anticlockwise, the right half-tooth gear 72 also starts to rotate anticlockwise, the third transmission tooth A3 is positioned in tooth grooves of the first right half-tooth B1 and the second right half-tooth B2 to continue to rotate, the second transmission tooth A2 is positioned in tooth grooves of the second half-tooth B2 and the third right half-tooth B3, the third transmission tooth A3 is positioned in tooth grooves of the third right half-tooth B3 and the right half-tooth B4 to continue to rotate, and then the transmission gear 8272 and the transmission tooth continues to disengage, after the transmission gear 8 and the right half-tooth gear 72 are disengaged, the left half-tooth gear 74 and the transmission gear 8 start to be meshed, the first transmission tooth A1 is located in tooth grooves of a third left half-tooth C3 and a fourth left half-tooth C4 and continues to rotate, the second transmission tooth A2 is located in tooth grooves of a second left half-tooth C2 and a third left half-tooth C3, the third transmission tooth A3 is located in tooth grooves of the first left half-tooth C1 and the second left half-tooth C2, then the transmission gear 8 and the left half-tooth gear 74 continue to be disengaged, and after the disengagement, the transmission gear 8 is meshed with the right half-tooth gear 72 again, so that the brush head part 1 is driven to swing back and forth in a repeated mode.

Compared with the prior art, the brush head part has the advantages that the brush head part can swing up and down in a reciprocating mode through the mechanical structure, the structure is simpler, a chip is not needed for control, the manufacturing cost is low, and the mechanical structure is longer in service life and more stable than an electronic structure. When the mechanical electric toothbrush is adopted, when the toothbrush is horizontally held by a left-right moving brush head in a common use process, the bristles can contact and move relative to the left and right planes of teeth under the manual action, and can swing up and down under the electric action, the swinging direction does reciprocating swing up and down along the direction of gaps among the teeth, so that the function of cleaning the teeth is better realized,

the mechanically driven electric toothbrush provided by the present invention has been described in detail above, and the description of the specific embodiments is only for the purpose of helping to understand the method of the present invention and its core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. Mechanical transmission formula electric toothbrush, including brushhead portion and drive division, its characterized in that: the driving part comprises an external shell, an internal motor, an internal power supply and an internal swinging device, the motor is electrically connected with the power supply, and an output shaft of the motor is connected with an output gear; the swinging device comprises two swinging gears, the swinging gears are duplicate gears and comprise full-tooth gears and half-tooth gears, the full-tooth gears of the swinging gears are meshed, the output gear and one of the output gears are meshed with the full-tooth gears of the swinging gears, the driving part further comprises a connecting shaft, the bottom of the brush head part is detachably connected to the top of the connecting shaft, the bottom of the connecting shaft is connected with a transmission gear, and the half-tooth gears are meshed with the transmission gear in a single-contact mode respectively.

2. The mechanically driven electric toothbrush of claim 1, wherein: the axes of the two swing gears and the axes of the transmission gears are arranged in an isosceles triangle, and a connecting line of the axes of the two swing gears is used as the bottom side of the isosceles triangle.

3. The mechanically driven electric toothbrush of claim 1, wherein: the shell is also provided with a speed regulating switch, and the speed regulating switch and the motor are electrically connected with the power supply.

4. The mechanically driven electric toothbrush of claim 1, wherein: the top of connecting axle is equipped with the rectangle section, still be equipped with a spacing lug on the rectangle section, the bottom of brushhead portion seted up with the rectangle section with spacing lug assorted mounting groove.

5. The mechanically driven, electric toothbrush of claim 1, wherein: the casing is inside from being equipped with power chamber, motor chamber and swing chamber down in proper order at least, the power is placed the power intracavity, the motor is placed at the motor intracavity, pendulous device is fixed the swing intracavity.

6. The mechanically driven, electric toothbrush of claim 1, wherein: the power supply is a rechargeable battery, and an interface for charging the rechargeable battery is arranged on the shell.