CN219354235U

CN219354235U - Multi-degree-of-freedom transmission mechanism and electric toothbrush comprising same

Info

Publication number: CN219354235U
Application number: CN202320481442.7U
Authority: CN
Inventors: 巢韵红; 袁佳祥
Original assignee: Changzhou Menghe Bearing Tools Factory
Current assignee: Changzhou Menghe Bearing Tools Factory
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-07-18
Anticipated expiration: 2033-03-14

Abstract

The utility model provides a multi-degree-of-freedom transmission mechanism and an electric toothbrush comprising the mechanism, and relates to the field of electric toothbrushes, and the mechanism comprises a driving component, a translation component, a swinging component, a brush body and a rotating component which are sequentially connected in a transmission way, wherein the driving component comprises two first gears which are meshed with each other and a second gear which is connected with the brush body, the translation component comprises two brackets and a connecting block which is inserted at the top ends of the two brackets and is connected with the first gears.

Description

Multi-degree-of-freedom transmission mechanism and electric toothbrush comprising same

Technical Field

The utility model relates to the field of electric toothbrushes, in particular to a multi-degree-of-freedom transmission mechanism and an electric toothbrush comprising the mechanism.

Background

In order to clear away the foreign matter in the oral cavity, use the brush hair vibration or the rotatory toothbrush of brush hair to clean the tooth, for a clear mode in oral cavity, wherein, when the brush hair is rotatory to clean the tooth, by the brush hair rotation dynamics great, lead to the tooth wearing and tearing big, and the tooth clearance washs relatively weak, lead to the tooth cleaning effect not good, secondly, when the brush hair vibration is clean the tooth, because the brush hair can't cover the tooth surface completely, still need the manual work to assist to drive and produce frictional force between electric toothbrush brush hair and the tooth, lead to the cleaning effect of tooth not good, consequently, propose a multi freedom drive mechanism and contain electric toothbrush of this mechanism on self-cleaning tooth surface.

Disclosure of Invention

The utility model aims to solve the following problems in the prior art: when the brush hair is rotated to clean teeth, the rotation force of the brush hair is large, so that the abrasion of the teeth is large, the tooth gap is relatively weak in cleaning, the tooth cleaning effect is poor, and secondly, when the brush hair is vibrated to clean the teeth, the brush hair cannot cover the surfaces of the teeth, and friction force is generated between the brush hair of the electric toothbrush and the teeth due to the fact that the brush hair is driven in a manual auxiliary mode, so that the tooth cleaning effect is poor.

In order to solve the problems in the prior art, the utility model provides a multi-degree-of-freedom transmission mechanism which comprises a driving assembly, a translation assembly, a swinging assembly, a brush body and a rotating assembly which are sequentially connected in a transmission way, wherein the driving assembly comprises two first gears meshed with each other and a second gear connected with the brush body, the translation assembly comprises two brackets and a connecting block which is inserted at the top ends of the two brackets and is connected with the first gears, one end of the connecting block is provided with a connecting rod, one side of the connecting block is provided with the connecting rod, the swinging assembly comprises two supporting seats and a rotating shaft which is inserted at the top ends of the supporting seats, the top ends of the rotating shaft are provided with stop rods connected with the brackets and the brush body, and the rotating assembly comprises an installation seat and a third gear which is installed at the top ends of the installation seat and is connected with the brush body.

Preferably, the middle part of the brush body is provided with a slot hole, the top end of the second gear is far away from the center and is provided with a connecting column, the connecting column of the second gear is inserted into the inner side of the kidney-shaped slot hole of the brush body, the kidney-shaped slot hole of the brush body is matched with the connecting column of the second gear in size, and the structure is used for enabling the rotating force of the second gear to drive the brush body to do translational motion.

Preferably, the driving assembly further comprises a supporting frame installed at the bottom end of the first gear and the bottom end of the second gear, the supporting frame comprises a mounting frame connected with the first gear and the second gear, a motor installed below the mounting frame and connected with the first gear, and the motor is used for enabling the first gear to rotate, so that the first gear drives the second gear and the connecting block to move.

Preferably, the slotted hole of the brush body is waist-shaped, the middle part of the brush body is cross-shaped, and the structure is used for enabling the rotating force of the second gear to drive the brush body to do translational motion.

Preferably, the top end of the connecting block and the side surface of the support are provided with baffles, and the structure is used for limiting the position of the connecting block and avoiding the falling of the connecting block.

Preferably, the number of the stop rods is two, the two stop rods are respectively positioned at two sides of the brush body and the connecting rod, the distance between the two stop rods is matched with the size of the brush body and the size of the connecting rod, the structure is used for enabling the brush body to horizontally move, and the brush body is prevented from being disconnected with the swinging assembly, so that the transmission mechanism is invalid.

Preferably, the middle part of connecting block is equipped with the through-hole, the through-hole of connecting block is waist shape, center department is kept away from on the top of first gear is equipped with the spliced pole, the spliced pole of first gear is pegged graft in the through-hole inboard of connecting block, the through-hole size of connecting block with the spliced pole size adaptation of first gear, this structure is used for making the rotation force of first gear drive the connecting block and do translational motion.

Preferably, the middle part of the top end of the mounting seat is provided with a groove, the inner side of the groove of the mounting seat is provided with a rack, the third gear is positioned on the inner side of the groove of the mounting seat and meshed with the rack of the mounting seat, and the structure is used for enabling the third gear to rotate when the brush body translates through the meshing of the third gear and the rack of the mounting seat when the top end of the mounting seat translates.

Preferably, the electric toothbrush manufactured by the multi-degree-of-freedom transmission mechanism comprises a support for supporting and fixing the multi-degree-of-freedom transmission mechanism, wherein the support comprises a brush body which is inserted into the top end of the support and connected with the multi-degree-of-freedom transmission mechanism, and a vibration motor which is arranged on the inner side of a brush head of the brush body.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the rotating force of the driving component is converted into the pushing force, so that the driving component drives the brush body to move on the X, Y, Z shaft on the support of the support through the swinging component and the rotating component, the brush body moves in a triaxial manner, the contact area between the brush head of the brush body and teeth is increased, meanwhile, the brush head is only required to be placed at the tooth position, and the electric toothbrush switch is turned on, the toothbrush automatically cleans the tooth surface with multiple degrees of freedom, so that the tooth cleaning efficiency is improved, and the cleaning effect is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged view of the brush body according to the present utility model;

FIG. 3 is an exploded view of the translation assembly of the present utility model;

FIG. 4 is an enlarged schematic cross-sectional view of the rotating assembly of the present utility model;

FIG. 5 is an enlarged schematic view of a swing assembly of the present utility model;

FIG. 6 is an exploded view of the drive assembly of the present utility model;

FIG. 7 is a schematic view of the structure of the support of the present utility model;

reference numerals: 1. a support; 2. a brush body; 3. a drive assembly; 31. a first gear; 32. a support frame; 33. a second gear; 4. a translation assembly; 41. a bracket; 42. a connecting rod; 43. a connecting block; 5. a swing assembly; 51. a stop lever; 52. a rotating shaft; 53. a support base; 6. a rotating assembly; 61. a third gear; 62. a mounting base; 7. a vibration motor.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model.

Specific embodiments of the present utility model are described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1-7, a multiple degree of freedom transmission mechanism includes a driving component 3, a translation component 4, a swinging component 5, a brush body 2 and a rotating component 6 which are sequentially connected in a transmission manner, wherein, it is noted that a slotted hole of the brush body 2 is waist-shaped, the middle part of the brush body 2 is cross-shaped, when the brush body 2 moves opposite to the second gear 33, the brush body 2 is driven to move back and forth, the driving component 3 includes two first gears 31 meshed with each other and the second gear 33 connected with the brush body 2, the translation component 4 includes two brackets 41, a connecting block 43 inserted at the top ends of the two brackets 41 and connected with the first gears 31, one end of the connecting block 43 is provided with a connecting rod 42 at one side of the bracket 41, wherein, the connecting block 43 is made to move in parallel on the brackets 41, the connecting block 43 is prevented from being askew, the top end of the connecting block 43 is provided with a baffle at the side of the bracket 41, the swinging component 5 comprises two supporting seats 53 and a rotating shaft 52 inserted at the top end of the supporting seat 53, the top end of the rotating shaft 52 is provided with a stop lever 51 connected with the bracket 41 and the brush body 2, wherein the number of the stop levers 51 is two, the two stop levers 51 are respectively positioned at two sides of the brush body 2 and the connecting rod 42, the distance between the two stop levers 51 is matched with the size of the brush body 2 and the connecting rod 42, the stop lever 51 drives the brush body 2 to reciprocate, the rotating component 6 comprises a mounting seat 62, a third gear 61 arranged at the top end of the mounting seat 62 and connected with the brush body 2, wherein, note that the middle part of the top end of the mounting seat 62 is provided with a groove for preventing the third gear 61 from being askew, the inner side of the groove of the mounting seat 62 is provided with a rack, the third gear 61 is positioned at the inner side of the groove of the mounting seat 62 and meshed with the rack of the mounting seat 62, so that the third gear 61 rolls on the mounting seat 62, the brush body 2 is driven to rotate.

As shown in fig. 1-7, a slot hole is arranged in the middle of the brush body 2, a connecting column is arranged at the top end of the second gear 33 far away from the center, the connecting column of the second gear 33 is inserted into the inner side of the kidney-shaped slot hole of the brush body 2, and the size of the kidney-shaped slot hole of the brush body 2 is matched with the size of the connecting column of the second gear 33.

As shown in fig. 1 to 7, the driving assembly 3 further includes a supporting frame 32 installed at the bottom ends of the first gear 31 and the second gear 33, the supporting frame 32 includes a mounting frame connected with the first gear 31 and the second gear 33, and a motor installed below the mounting frame and connected with the first gear 31, wherein it should be noted that a driving motor of the supporting frame 32 is a right angle driving for reducing an occupied space of the driving motor and reducing an overall size of the electric toothbrush.

As shown in fig. 1-7, a through hole is formed in the middle of the connecting block 43, the through hole of the connecting block 43 is waist-shaped, a connecting column is arranged at the top end of the first gear 31 far away from the center, the connecting column of the first gear 31 is inserted into the inner side of the through hole of the connecting block 43, and the size of the through hole of the connecting block 43 is matched with the size of the connecting column of the first gear 31.

As shown in figures 1-7, the electric toothbrush made of the multi-degree-of-freedom transmission mechanism comprises a support 1 for supporting and fixing the multi-degree-of-freedom transmission mechanism, wherein the support 1 comprises a brush body 2 which is inserted into the top end of the support 1 and is connected with the multi-degree-of-freedom transmission mechanism, and a vibration motor 7 which is arranged on the inner side of a brush head of the brush body 2.

Description of working principle: when the brush body 2 is used, the first gear 31 and the second gear 33 are driven to rotate by the transmission motor of the support frame 32, the first gear 31 and the second gear 33 respectively drive the connecting column to move at the through holes of the connecting block 43 and the inner sides of the kidney-shaped slots of the brush body 2, the rotation force of the first gear 31 and the second gear 33 is converted into the driving force, the second gear 33 drives the brush body 2 to move along the X axis, the first gear 31 drives the connecting block 43 to move at the top end of the bracket 41, the connecting block 43 drives the top end of the blocking rod 51 to move through the connecting rod 42 inserted at the inner sides of the two blocking rods 51, the blocking rod 51 drives the rotating shaft 52 to rotate at the top end of the supporting seat 53, the blocking rod 51 and the rotating shaft 52 are in a swinging shape above the supporting seat 53, the two groups of blocking rods 51 simultaneously drive the brush body 2 to move along the top end of the bracket of the support 1, the brush body 2 moves along the Y axis, the third gear 61 is driven to move along the top end of the mounting seat 62, and the teeth of the third gear 61 are meshed with the teeth of the third gear 61 through the rack 62 of the mounting seat 62, and the brush body 2 moves along the Z axis.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A multi-freedom-degree transmission mechanism is characterized in that: including drive assembly (3), translation subassembly (4), swing subassembly (5), brush body (2), rotating assembly (6) that drive assembly (3) include two intermeshing first gears (31) and with second gear (33) that brush body (2) are connected, translation subassembly (4) include two supports (41), peg graft in two support (41) top and with connecting block (43) that first gear (31) are connected, the one end of connecting block (43) just is located one side of support (41) is equipped with connecting rod (42), swing subassembly (5) include two supporting seats (53), peg graft pivot (52) on supporting seat (53) top, the top of pivot (52) be equipped with stop lever (51) that support (41) and brush body (2) are connected, rotating assembly (6) include mount pad (62) top and with third gear (61) that brush body (2) are connected.

2. A multiple degree of freedom transmission according to claim 1, wherein: the middle part of the brush body (2) is provided with a slotted hole, the top end of the second gear (33) is far away from the center and is provided with a connecting column, the connecting column of the second gear (33) is inserted into the inner side of the kidney-shaped slotted hole of the brush body (2), and the kidney-shaped slotted hole of the brush body (2) is matched with the connecting column of the second gear (33) in size.

3. A multiple degree of freedom transmission according to claim 1, wherein: the driving assembly (3) further comprises a supporting frame (32) arranged at the bottom ends of the first gear (31) and the second gear (33), the supporting frame (32) comprises a mounting frame connected with the first gear (31) and the second gear (33), and a motor arranged below the mounting frame and connected with the first gear (31).

4. A multiple degree of freedom transmission according to claim 1, wherein: the slotted hole of the brush body (2) is waist-shaped, and the middle part of the brush body (2) is cross-shaped.

5. A multiple degree of freedom transmission according to claim 3, wherein: the top end of the connecting block (43) and the side surface of the bracket (41) are provided with baffles.

6. A multiple degree of freedom transmission according to claim 2, wherein: the number of the stop rods (51) is two, the two stop rods (51) are respectively positioned at two sides of the brush body (2) and the connecting rod (42), and the distance between the two stop rods (51) is matched with the sizes of the brush body (2) and the connecting rod (42).

7. A multiple degree of freedom transmission according to claim 1, wherein: the middle part of connecting block (43) is equipped with the through-hole, the through-hole of connecting block (43) is waist shape, center department is kept away from on the top of first gear (31) is equipped with the spliced pole, the spliced pole of first gear (31) is pegged graft in the through-hole inboard of connecting block (43), the through-hole size of connecting block (43) with spliced pole size adaptation of first gear (31).

8. A multiple degree of freedom transmission according to claim 1, wherein: the middle part of the top end of the mounting seat (62) is provided with a groove, the inner side of the groove of the mounting seat (62) is provided with a rack, and the third gear (61) is positioned on the inner side of the groove of the mounting seat (62) and meshed with the rack of the mounting seat (62).

9. An electric toothbrush using a multiple degree of freedom drive mechanism according to any one of claims 1 to 8, wherein: the multifunctional brush comprises a support (1) for supporting and fixing a multi-degree-of-freedom transmission mechanism, wherein the support (1) comprises a brush body (2) which is inserted into the top end of the support (1) and is connected with the multi-degree-of-freedom transmission mechanism, and a vibration motor (7) which is arranged on the inner side of a brush head of the brush body (2).