CN218870546U

CN218870546U - Transmission structure for electric toothbrush

Info

Publication number: CN218870546U
Application number: CN202222447268.2U
Authority: CN
Inventors: 常田; 方浩; 孙艺
Original assignee: Shanghai Mange Technology Co ltd
Current assignee: Shanghai Mange Technology Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-04-18
Anticipated expiration: 2032-09-15

Abstract

The utility model relates to a transmission structure for electric toothbrush, including brush head and installation handle, one side of brush head is equipped with first drive mechanism, second drive mechanism and installation mechanism, first drive mechanism includes first bevel gear, second bevel gear, first rotation axis, eccentric wheel, second rotation axis, first connecting rod, removal frame and actuating mechanism, first bevel gear, second bevel gear, first rotation axis and eccentric wheel all are provided with two, two second bevel gear fixed cover respectively is established at two outside the first rotation axis, and respectively with two first bevel gear meshing, the utility model discloses in be provided with first drive mechanism, be convenient for drive removal frame, installation handle and brush head through first motor rotation and be reciprocating motion, and two eccentric wheels set up in the both sides of first connecting rod, improve the stability of first connecting rod motion.

Description

Transmission structure for electric toothbrush

Technical Field

The utility model relates to a transmission technical field specifically is a transmission structure for electric toothbrush.

Background

Electric toothbrushes are generally classified into two types, one in which a brush head makes a linear reciprocating motion, and the other in which a brush head makes a rotational motion. The electric toothbrush which does linear reciprocating motion generally drives an eccentric wheel to rotate through a motor, so that a toothbrush handle is driven to do reciprocating motion along the handle direction, the driving of the electric toothbrush is realized, the eccentric wheel of the existing transmission structure is arranged on one side of a movable rod, so that only one side of the movable rod is stressed when the movable rod does reciprocating motion, and the motion is unstable; in addition, the brush head of the existing electric toothbrush does linear reciprocating motion or rotary motion, and the motion mode is single; simultaneously, electric toothbrush's brush head generally sets to detachable, and some electric toothbrush's brush head combines two kinds of motion modes, nevertheless the difficult and body of brush head are connected, and transmission structure is difficult for assembling in addition.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the problem that exists among the prior art, the utility model provides a transmission structure for electric toothbrush to solve the technical problem who mentions in the background art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a transmission structure for an electric toothbrush comprises a brush head and an installation handle, wherein a first transmission mechanism, a second transmission mechanism and an installation mechanism are arranged on one side of the brush head, the first transmission mechanism comprises a first bevel gear, a second bevel gear, a first rotating shaft, an eccentric wheel, a second rotating shaft, a first connecting rod, a movable frame and a driving mechanism, the first bevel gear, the second bevel gear, the first rotating shaft and the eccentric wheel are respectively and fixedly sleeved outside the first rotating shaft, the second bevel gear is respectively and fixedly meshed with the first bevel gear, the eccentric wheel is respectively and fixedly installed on the first rotating shaft, the axis of the eccentric wheel is collinear with the axis of the first rotating shaft, the axis of the second rotating shaft is parallel with the axis of the eccentric wheel, the two ends of the second rotating shaft are respectively and fixedly connected with the positions of the eccentric wheel, deviating from the axis, one end of the first connecting rod is rotatably connected with the second rotating shaft, and the other end of the first connecting rod is rotatably connected with the movable frame.

Preferably, actuating mechanism includes first motor, third rotation axis, first gear and second gear meshing, and the fixed cover of first gear is established outside the output shaft of first motor, and the fixed cover of second gear is established outside the third rotation axis, and one of them the fixed cover of first bevel gear is established outside the output shaft of first motor, and the other one the fixed cover of first bevel gear is established outside the third rotation axis, is convenient for drive two first bevel gears through first motor and moves together.

Preferably in further, the second transmission mechanism comprises a second motor, a third bevel gear, a fourth bevel gear, a fifth bevel gear, a sixth bevel gear and a fourth rotating shaft, the third bevel gear is fixedly sleeved outside an output shaft of the second motor, the fourth bevel gear slides and is non-rotatably sleeved at one end of the fourth rotating shaft and is meshed with the third bevel gear, the fifth bevel gear is fixedly sleeved at the other end of the fourth rotating shaft and is meshed with the sixth bevel gear, the brush head is rotatably arranged at one end of the mounting handle, one end of the brush head penetrates through the mounting handle and is connected with the sixth bevel gear, and the second motor is used for driving the brush head to rotate.

Preferably in further, installation mechanism includes installation knob, connecting sleeve, stop sleeve and limiting plate, the fixed setting of limiting plate is in removing the frame, and the one end of installation handle is equipped with the stopper, and stop sleeve slides and sets up in removing the frame, installation knob and stop sleeve fixed connection, and the connecting sleeve thread bush is established outside removing the frame, and connecting sleeve and installation knob rotate to be connected, be provided with on stop sleeve and the installation knob with the first spacing groove of stopper complex, the last one side that is close to the limiting plate of stop sleeve be provided with stopper complex second spacing groove, be convenient for installation handle with remove the frame and connect.

In further preferred, the fourth bevel gear is externally rotatably sleeved with a connecting disc, a connecting plate is arranged on the outer edge of the connecting disc, the connecting plate is detachably connected with the connecting disc through a bolt, the connecting plate is detachably connected with the moving frame through a bolt, a through groove matched with the connecting plate is formed in the moving frame, and the fourth bevel gear is fixedly connected with the moving frame conveniently.

In a further preferred mode, one end of the movable frame is provided with a connecting seat through bolt connection, and the first connecting rod is rotatably connected with the connecting seat, so that the movable frame is connected with the first connecting rod conveniently.

In further preferred, the second motor is externally provided with a mounting frame, the through groove is provided with a mounting groove matched with the mounting frame, the mounting frame and the moving frame are detachably connected through a bolt, and the second motor and the moving frame are conveniently connected.

(III) advantageous effects

Compared with the prior art, the utility model provides a transmission structure for electric toothbrush possesses following beneficial effect:

1. the utility model is provided with the first transmission mechanism, which is convenient for driving the moving frame, the installation handle and the brush head to do reciprocating motion through the rotation of the first motor, and the two eccentric wheels are arranged at the two sides of the first connecting rod, thereby improving the stability of the motion of the first connecting rod;

2. the second transmission mechanism is arranged in the moving frame, so that the brush head can be driven to rotate through the rotation of the second motor, the first motor and the second motor can be operated separately, and the brush head can do reciprocating motion or rotating motion or can be operated simultaneously, so that the brush head can do reciprocating motion and rotating motion;

3. the utility model discloses well installation handle with remove and be equipped with installation mechanism between the frame, be convenient for install the installation handle fixed, fourth bevel gear installs fixedly through connection pad and connecting plate and removal frame, is convenient for remove the connection pad and connects fixedly in the removal frame again.

Drawings

Fig. 1 is a schematic overall structure diagram of a transmission structure for an electric toothbrush of the present invention;

FIG. 2 is a schematic view of the present invention showing the second rotating shaft, the first connecting rod and the connecting seat in an unconnected state;

FIG. 3 is a schematic view showing the second transmission mechanism and the mounting handle in an unconnected state;

FIG. 4 is a schematic view of the present invention showing the state where the connecting sleeve and the movable frame are not connected;

fig. 5 is a schematic view of the structure of the middle connection sleeve, the installation knob and the limit sleeve of the present invention.

In the figure: 1. a brush head; 2. a handle is installed; 3. a first bevel gear; 4. a second bevel gear; 5. a first rotating shaft; 6. an eccentric wheel; 7. a second rotation shaft; 8. a first link; 9. a movable frame; 10. a first motor; 11. a third rotation axis; 12. a first gear; 13. a second gear; 14. a second motor; 15. a third bevel gear; 16. a fourth bevel gear; 17. a fifth bevel gear; 18. a sixth bevel gear; 19. a fourth rotation axis; 20. installing a knob; 21. a connecting sleeve; 22. a limiting sleeve; 23. a limiting plate; 24. a limiting block; 25. a first limit groove; 26. a second limit groove; 27. a connecting disc; 28. a connecting plate; 29. a through groove; 30. a connecting seat; 31. a mounting frame; 32. and (4) mounting the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-5, a transmission structure for an electric toothbrush comprises a brush head 1 and a mounting handle 2, a first transmission mechanism, a second transmission mechanism and a mounting mechanism are arranged on one side of the brush head 1, the first transmission mechanism comprises two first bevel gears 3, two second bevel gears 4, a first rotating shaft 5, eccentric wheels 6, a second rotating shaft 7, a first connecting rod 8, a moving frame 9 and a driving mechanism, the two first bevel gears 3, the two second bevel gears 4, the first rotating shaft 5 and the eccentric wheels 6 are respectively and fixedly sleeved outside the two first rotating shafts 5 and respectively meshed with the two first bevel gears 3, the two eccentric wheels 6 are respectively and fixedly mounted on the two first rotating shafts 5, the axes of the eccentric wheels 6 and the axes of the first rotating shafts 5 are collinear, the axes of the second rotating shafts 7 and the axes of the eccentric wheels 6 are parallel, two ends of the second rotating shafts 7 are respectively and fixedly connected with positions on the two eccentric wheels 6 deviating from the axes, one end of the first connecting rod 8 is rotatably connected with the second rotating shaft 7, and the other end is rotatably connected with the moving frame 9.

Referring to fig. 1-5, the driving mechanism includes a first motor 10, a third rotating shaft 11, a first gear 12 and a second gear 13, the first gear 12 is engaged with the second gear 13, the first gear 12 is fixedly sleeved outside the output shaft of the first motor 10, the second gear 13 is fixedly sleeved outside the third rotating shaft 11, one of the first bevel gears 3 is fixedly sleeved outside the output shaft of the first motor 10, and the other first bevel gear 3 is fixedly sleeved outside the third rotating shaft 11. When the device is used, the first motor 10 is started to drive the first gear 12 to rotate and further drive the second gear 13 to rotate, and when the first gear 12 and the second gear 13 rotate, the two first bevel gears 3 are driven to rotate together and further the two second bevel gears 4 are driven to rotate together, so that the two first rotating shafts 5, the two eccentric wheels 6 and the second rotating shaft 7 are driven to rotate together.

Referring to fig. 1-5, the second transmission mechanism includes a second motor 14, a third bevel gear 15, a fourth bevel gear 16, a fifth bevel gear 17, a sixth bevel gear 18, and a fourth rotation shaft 19, the third bevel gear 15 is fixedly sleeved outside an output shaft of the second motor 14, the fourth bevel gear 16 is slidably and non-rotatably sleeved at one end of the fourth rotation shaft 19 and is engaged with the third bevel gear 15, the fifth bevel gear 17 is fixedly sleeved at the other end of the fourth rotation shaft 19 and is engaged with the sixth bevel gear 18, the brush head 1 is rotatably disposed at one end of the mounting handle 2, and one end of the brush head 1 penetrates through the mounting handle 2 and is connected with the sixth bevel gear 18. When the toothbrush is used, the second motor 14 is started to drive the third bevel gear 15 to rotate, so as to drive the fourth bevel gear 16 to rotate, so as to drive the fourth rotating shaft 19 to rotate, and the fourth rotating shaft 19 drives the fifth bevel gear 17 to rotate, so as to drive the toothbrush head 1 to rotate through the sixth bevel gear 18.

Referring to fig. 1-5, the mounting mechanism includes a mounting knob 20, a connecting sleeve 21, a limiting sleeve 22 and a limiting plate 23, the limiting plate 23 is fixedly disposed in the moving frame 9, a limiting block 24 is disposed at one end of the mounting handle 2, the limiting sleeve 22 is slidably disposed in the moving frame 9, the mounting knob 20 is fixedly connected to the limiting sleeve 22, the connecting sleeve 21 is threadedly disposed outside the moving frame 9, the connecting sleeve 21 is rotatably connected to the mounting knob 20, a first limiting groove 25 matched with the limiting block 24 is disposed on the limiting sleeve 22 and the mounting knob 20, and a second limiting groove 26 matched with the limiting block 24 is disposed on one side of the limiting sleeve 22 close to the limiting plate 23. When using, insert the stopper 24 on the installation handle 2 into first spacing groove 25, until stopper 24 and limiting plate 23 laminating on the installation handle 2, rotate installation handle 2, make it drive stopper 24 rotate to align with second spacing groove 26, rotate connecting sleeve 21, make it and remove a 9 threaded connection, drive installation knob 20 and limiting sleeve 22 and remove to the direction that is close to limiting plate 23 in the connection process, until stopper 24 is located second spacing groove 26 completely, it is fixed to accomplish the connection of installation handle 2 and removal frame 9.

Referring to fig. 1-5, a connecting plate 27 is rotatably sleeved outside the fourth bevel gear 16, a connecting plate 28 is disposed on an outer edge of the connecting plate 27, the connecting plate 28 and the connecting plate 27 are detachably connected by a bolt, the connecting plate 28 and the movable frame 9 are detachably connected by a bolt, and a through slot 29 matched with the connecting plate 28 is disposed on the movable frame 9. One end of the movable frame 9 is provided with a connecting seat 30 through bolt connection, and the first connecting rod 8 is rotatably connected with the connecting seat 30. The second motor 14 is externally provided with a mounting frame 31, the through groove 29 is provided with a mounting groove 32 matched with the mounting frame 31, and the mounting frame 31 and the moving frame 9 are detachably connected through bolts. When in use, the connecting disc 27 is inserted into the moving frame 9 from one side of the moving frame 9, the connecting disc 27 is pushed until the connecting disc 27 moves to the through groove 29, the connecting plate 28 is inserted into the through groove 29, the connecting plate 28 and the connecting disc 27 are fixed through bolt connection, the connecting disc 27 and the connecting plate 28 are pushed to move to proper positions, the connecting plate 28 and the moving frame 9 are fixed through bolt connection, the mounting frame 31 is inserted into the mounting groove 32, the mounting frame 31 and the moving frame 9 are fixed through bolt connection, the connecting seat 30 is inserted into the moving frame 9, and the connecting seat 30 and the moving frame 9 are fixed through bolt connection.

Example 2:

in summary, in use, the connecting disc 27 is inserted into the moving frame 9 from one side of the moving frame 9, the connecting disc 27 is pushed until it moves to the through groove 29, the connecting plate 28 is inserted into the through groove 29, the connecting plate 28 and the connecting disc 27 are fixed by bolting, the connecting disc 27 and the connecting plate 28 are pushed to move to proper positions, the connecting plate 28 and the moving frame 9 are fixed by bolting, the mounting frame 31 is inserted into the mounting groove 32, the mounting frame 31 and the moving frame 9 are fixed by bolting, the connecting frame 30 is inserted into the moving frame 9, the connecting frame 30 and the moving frame 9 are fixed by bolting, the limiting block 24 on the mounting handle 2 is inserted into the first limiting groove 25 until the limiting block 24 and the limiting plate 23 on the mounting handle 2 are attached, the mounting handle 2 is rotated to drive the limiting block 24 to align with the second limiting groove 26, the connecting sleeve 21 is rotated to be in threaded connection with the moving frame 9, the mounting knob 20 and the limiting sleeve 22 are driven to move in a direction close to the limiting groove 23 until the limiting block 24 is completely positioned in the second limiting groove 26, the connecting sleeve 2 is inserted into the fourth limiting shaft 16, and the bevel gear is inserted into the fourth limiting shaft 16.

Example 3:

in conclusion, in use, the first motor 10 is started to drive the first gear 12 to rotate and further drive the second gear 13 to rotate, when the first gear 12 and the second gear 13 rotate, the two first bevel gears 3 are driven to rotate together and further drive the two second bevel gears 4 to rotate together, the two first rotating shafts 5, the two eccentric wheels 6 and the second rotating shaft 7 are driven to rotate together and further drive the first connecting rod 8 to move, the moving frame 9 is slidably arranged in the shell of the electric toothbrush, and the first connecting rod 8 drives the moving frame 9 to reciprocate in the moving process, so as to drive the mounting handle 2 and the toothbrush head 1 to reciprocate together; the second motor 14 is started to drive the third bevel gear 15 to rotate, so as to drive the fourth bevel gear 16 to rotate, so as to drive the fourth rotating shaft 19 to rotate, the fourth rotating shaft 19 drives the fifth bevel gear 17 to rotate, and the brush head 1 is driven to rotate through the sixth bevel gear 18; the first motor 10 and the second motor 14 may be activated separately to allow a single movement of the brush head 1 or may be activated simultaneously to allow two movements of the brush head 1 to occur simultaneously.

In all the above-mentioned embodiments, the connection between two components may be selected from welding, bolt and nut fit connection, bolt or screw connection or other known connection methods according to actual situations, which are not repeated herein, and it is preferable to consider welding in the above description, although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The utility model provides an electric toothbrush uses transmission structure, includes brush head (1) and installation handle (2), its characterized in that: the novel toothbrush is characterized in that a first transmission mechanism, a second transmission mechanism and an installation mechanism are arranged on one side of the toothbrush head (1), the first transmission mechanism comprises a first bevel gear (3), two second bevel gears (4), a first rotating shaft (5), eccentric wheels (6), a second rotating shaft (7), a first connecting rod (8), a moving frame (9) and a driving mechanism, the number of the first bevel gears (3), the number of the second bevel gears (4), the number of the first rotating shaft (5) and the number of the eccentric wheels (6) are two, the two second bevel gears (4) are fixedly sleeved outside the two first rotating shafts (5) respectively and are meshed with the two first bevel gears (3) respectively, the two eccentric wheels (6) are fixedly installed on the two first rotating shafts (5) respectively, the axial lines of the eccentric wheels (6) and the axial lines of the first rotating shafts (5) are collinear, the axial lines of the second rotating shafts (7) are parallel to the axial lines of the eccentric wheels (6), the two ends of the second rotating shafts (7) are fixedly connected with the positions, which deviate from the axial lines of the two eccentric wheels (6), one end of the first connecting rod (8) is connected with the second rotating shaft (7), and the moving frame (9) is connected with the moving frame.

2. The transmission structure for the electric toothbrush according to claim 1, wherein: the driving mechanism comprises a first motor (10), a third rotating shaft (11), a first gear (12) and a second gear (13), the first gear (12) is meshed with the second gear (13), the first gear (12) is fixedly sleeved outside an output shaft of the first motor (10), the second gear (13) is fixedly sleeved outside the third rotating shaft (11), one of the first gear (3) is fixedly sleeved outside an output shaft of the first motor (10), and the other one of the first gear (3) is fixedly sleeved outside the third rotating shaft (11).

3. The transmission structure for the electric toothbrush according to claim 1, wherein: the second transmission mechanism comprises a second motor (14), a third bevel gear (15), a fourth bevel gear (16), a fifth bevel gear (17), a sixth bevel gear (18) and a fourth rotating shaft (19), the third bevel gear (15) is fixedly sleeved outside an output shaft of the second motor (14), the fourth bevel gear (16) slides and is non-rotatably sleeved at one end of the fourth rotating shaft (19) and is meshed with the third bevel gear (15), the fifth bevel gear (17) is fixedly sleeved at the other end of the fourth rotating shaft (19) and is meshed with the sixth bevel gear (18), the brush head (1) is rotatably arranged at one end of the mounting handle (2), and one end of the brush head (1) penetrates through the mounting handle (2) and is connected with the sixth bevel gear (18).

4. The transmission structure for the electric toothbrush according to claim 1, wherein: installation mechanism is including installation knob (20), connecting sleeve (21), stop sleeve (22) and limiting plate (23), limiting plate (23) are fixed to be set up in removing frame (9), the one end of installation handle (2) is equipped with stopper (24), stop sleeve (22) slide to set up in removing frame (9), installation knob (20) and stop sleeve (22) fixed connection, connecting sleeve (21) threaded sleeve is established outside removing frame (9), and connecting sleeve (21) and installation knob (20) rotate to be connected, be provided with on stop sleeve (22) and installation knob (20) with stopper (24) complex first spacing groove (25), one side that is close to limiting plate (23) on stop sleeve (22) is provided with stopper (24) complex second spacing groove (26).

5. The transmission structure for an electric toothbrush according to claim 3, wherein: fourth bevel gear (16) outer rotating sleeve is equipped with connection pad (27), and the outer fringe of connection pad (27) is equipped with connecting plate (28), and connecting plate (28) and connection pad (27) pass through bolt detachably and connect, and connecting plate (28) and removal frame (9) pass through bolt detachably and connect, are provided with logical groove (29) with connecting plate (28) complex on the removal frame (9).

6. The transmission structure for the electric toothbrush according to claim 5, wherein: one end of the movable frame (9) is provided with a connecting seat (30) through bolt connection, and the first connecting rod (8) is rotatably connected with the connecting seat (30).

7. The transmission structure for the electric toothbrush according to claim 5, wherein: the mounting frame (31) is arranged outside the second motor (14), the mounting groove (32) matched with the mounting frame (31) is formed in the position of the through groove (29), and the mounting frame (31) is detachably connected with the moving frame (9) through bolts.