阅读说明：本技术 多向综合驱动式电动牙刷 (Multidirectional comprehensive driving type electric toothbrush ) 是由 何泽枫 何诗航 于 2020-05-25 设计创作，主要内容包括：本发明公开一种多向综合驱动式电动牙刷,包括刷柄和刷头,刷柄内设置有驱动电机,电机驱动下传动轴,下传动轴的端部固定有下齿轮,所述下齿轮的上端设置有齿盘,齿盘沿刷柄壳体横向设置并可绕横向轴线转动,齿盘具有横向分布的啮合齿,齿盘上端设置有上齿轮,所述齿盘的下部横向与所述下齿轮啮合、齿盘的上部与所述上齿轮啮合,上齿轮固定在上传动轴的下端部,上传动轴与所述刷头上的刷毛驱动机构连接并可转动驱动刷毛驱动机构,所述齿盘上部带有凸轮,刷头连接架上端与刷头连接,所述刷头连接架下端带有连接环,连接环套在所述凸轮上,所述齿盘被下齿轮驱动转动时所述凸轮上下推移所述连接环进而驱动刷头上下振动。该电动牙刷能够同时实现刷头的整体高频上下移动和刷毛的左右高频移动,并且两组移动都是由一套传动组件实现,使电动牙刷在简单传动结构设置的前提下同时实现多组的复杂动作,从而能够更加干净的刷牙。(The invention discloses a multidirectional comprehensive driving type electric toothbrush, which comprises a brush handle and a brush head, wherein a driving motor is arranged in the brush handle, the motor drives a lower transmission shaft, a lower gear is fixed at the end part of the lower transmission shaft, the upper end of the lower gear is provided with a fluted disc which is transversely arranged along the brush holder shell and can rotate around a transverse axis, the fluted disc is provided with transversely distributed meshing teeth, the upper end of the fluted disc is provided with an upper gear, the lower part of the fluted disc is transversely meshed with the lower gear, the upper part of the fluted disc is meshed with the upper gear, the upper gear is fixed at the lower end part of the upper transmission shaft, the upper transmission shaft is connected with the bristle driving mechanism on the brush head and can rotatably drive the bristle driving mechanism, the upper part of the fluted disc is provided with a cam, the upper end of the brush head connecting frame is connected with the brush head, the lower end of the brush head connecting frame is provided with a connecting ring which is sleeved on the cam, when the fluted disc is driven by the lower gear to rotate, the cam pushes the connecting ring up and down to drive the brush head to vibrate up and down. This electric toothbrush can realize the whole high frequency of brush head simultaneously and reciprocate and the high frequency removal about the brush hair to two sets of removals are all realized by one set of drive assembly, make electric toothbrush realize multiunit complicated action simultaneously under the prerequisite that simple transmission structure set up, thereby can cleaner brush teeth.)

1. The utility model provides an electronic toothbrush of multidirectional integrated drive formula, includes brush holder and brush head, is provided with driving motor in the brush holder, motor drive underdrive axle, and the end fixing of underdrive axle has lower gear, characterized by: the upper end of lower gear is provided with the fluted disc, and the fluted disc transversely sets up and can rotate around horizontal axis along the brush holder casing, and the fluted disc has transverse distribution's meshing tooth, and the fluted disc upper end is provided with the gear, the lower part of fluted disc transversely with lower gear engagement, the upper portion of fluted disc with go up the gear engagement, go up the gear and fix the lower tip at last transmission shaft, go up the transmission shaft with brush overhead brush hair actuating mechanism and connect and rotatable drive brush hair actuating mechanism, fluted disc upper portion has the cam, and brush head link upper end is connected with the brush head, brush head link lower extreme has the go-between, and the go-between cover is in on the cam, when the fluted disc is rotated by lower gear drive the cam passes from top to bottom the go-between and.

2. The multi-directional combination drive powered toothbrush of claim 1, wherein: the brush hair driving mechanism comprises a crankshaft, a slot is formed in the lower end of the crankshaft, the upper transmission shaft is provided with an inserting end, the slot is inserted into the inserting end, and the length of the inserting matching between the slot and the inserting end is larger than the moving range of the connecting ring pushed by the cam.

3. The multidirectional integrated drive type electric toothbrush according to claim 1 or 2, wherein: the transverse width of the inner hole of the connecting ring is larger than or equal to the transverse swing width range of the cam.

4. The multidirectional integrated drive type electric toothbrush according to claim 1 or 2, wherein: the brush head connecting frame comprises a connecting rod and a connecting plate, the connecting ring is arranged on the connecting plate, a buckle connector is arranged at the upper end of the connecting rod and is buckled with the brush head, the connecting plate and the connecting rod are distributed in a step shape and form connection, strip-shaped placing grooves corresponding to the connecting rod are formed in the two side portions of the inner wall of the brush holder shell, and the connecting rod is placed into the strip-shaped placing grooves.

5. The multi-directional combination drive powered toothbrush of claim 3, wherein: the brush head connecting frame comprises a connecting rod and a connecting plate, the connecting ring is arranged on the connecting plate, a buckle connector is arranged at the upper end of the connecting rod and is buckled with the brush head, the connecting plate and the connecting rod are distributed in a step shape and form connection, strip-shaped placing grooves corresponding to the connecting rod are formed in the two side portions of the inner wall of the brush holder shell, and the connecting rod is placed into the strip-shaped placing grooves.

6. The multidirectional integrated drive type electric toothbrush according to claim 1 or 2, wherein: the brush hair driving mechanism comprises a crankshaft, a plurality of left and right sliding blocks and a transverse sliding rail mechanism, wherein a plurality of eccentric shafts are arranged on the crankshaft, vertical grooves are formed in the left and right sliding blocks, the eccentric shafts are located in the vertical grooves, and brush hair is respectively arranged on the front surfaces of the left and right sliding blocks.

7. The multi-directional combination drive powered toothbrush of claim 5, wherein: the brush hair driving mechanism comprises a crankshaft, a plurality of left and right sliding blocks and a transverse sliding rail mechanism, wherein a plurality of eccentric shafts are arranged on the crankshaft, vertical grooves are formed in the left and right sliding blocks, the eccentric shafts are located in the vertical grooves, and brush hair is respectively arranged on the front surfaces of the left and right sliding blocks.

8. The multi-directional combination drive powered toothbrush of claim 6, wherein: the eccentric shaft comprises an eccentric shaft A and an eccentric shaft B which are different in eccentric direction, the eccentric shaft A and the eccentric shaft B are distributed at intervals and are respectively placed in the vertical grooves, the transverse sliding rail mechanism 1 is a transverse sliding groove formed by separating a transverse partition plate, a plurality of left and right sliding blocks are respectively arranged in the transverse sliding groove, bristles penetrate through bristle grooves in the shell and are fixed on the left and right sliding blocks, and the width of each bristle groove corresponds to the distance of the bristles moving left and right.

9. The multi-directional combination drive powered toothbrush of claim 7, wherein: the eccentric shaft comprises an eccentric shaft A and an eccentric shaft B which are different in eccentric direction, the eccentric shaft A and the eccentric shaft B are distributed at intervals and are respectively placed in the vertical grooves, the transverse sliding rail mechanism 1 is a transverse sliding groove formed by separating a transverse partition plate, a plurality of left and right sliding blocks are respectively arranged in the transverse sliding groove, bristles penetrate through bristle grooves in the shell and are fixed on the left and right sliding blocks, and the width of each bristle groove corresponds to the distance of the bristles moving left and right.

10. The multi-directional combination drive powered toothbrush of claim 9, wherein: an annular gap is reserved at the joint of the brush head and the brush handle, an elastic sleeve is arranged at the annular gap, and the elastic sleeve changes along with the brush head in the process of moving up and down at high frequency.

Technical Field

The invention relates to a multidirectional comprehensive driving type electric toothbrush.

Background

The transmission electric toothbrush includes brush holder and brush head, is provided with driving motor in the brush holder, motor drive mechanism, driving motor passes through drive mechanism drive brush hair, and the drive mode includes: 1. the high-frequency ultrasonic vibration drives the bristles to vibrate; 2. the bristles are driven to rotate; 3. the bristles are driven to move back and forth; 4. the brush hair is driven to move left and right. However, the above-mentioned several groups of actions can only be operated individually, and it is impossible to perform two groups of actions simultaneously in one mode, such as realizing high frequency movement of the brush bristles up and down and left and right, and simultaneously making the brush bristles perform high frequency movement up and down and left and right to brush teeth more cleanly.

Disclosure of Invention

The invention provides a multidirectional comprehensive driving type electric toothbrush which can simultaneously realize high-frequency movement of bristles up and down and left and right through a simple and efficient transmission mechanism.

Therefore, the multidirectional comprehensive driving type electric toothbrush provided by the invention comprises a brush handle and a brush head, wherein a driving motor is arranged in the brush handle, the motor drives a lower transmission shaft, a lower gear is fixed at the end part of the lower transmission shaft, the upper end of the lower gear is provided with a fluted disc which is transversely arranged along the brush holder shell and can rotate around a transverse axis, the fluted disc is provided with transversely distributed meshing teeth, the upper end of the fluted disc is provided with an upper gear, the lower part of the fluted disc is transversely meshed with the lower gear, the upper part of the fluted disc is meshed with the upper gear, the upper gear is fixed at the lower end part of the upper transmission shaft, the upper transmission shaft is connected with the bristle driving mechanism on the brush head and can rotatably drive the bristle driving mechanism, the upper part of the fluted disc is provided with a cam, the upper end of the brush head connecting frame is connected with the brush head, the lower end of the brush head connecting frame is provided with a connecting ring which is sleeved on the cam, when the fluted disc is driven by the lower gear to rotate, the cam pushes the connecting ring up and down to drive the brush head to vibrate up and down.

Furthermore, the bristle driving mechanism comprises a crankshaft, a slot is formed in the lower end of the crankshaft, the upper transmission shaft is provided with an insertion end, the slot is inserted into the insertion end, and the length of the insertion fit between the slot and the insertion end is larger than the moving range of the connecting ring pushed by the cam.

Further, the transverse width of the inner hole of the connecting ring is larger than or equal to the transverse swing width range of the cam.

Further, the brush head connecting frame comprises a connecting rod and a connecting plate, the connecting ring is arranged on the connecting plate, a buckle connector is arranged at the upper end of the connecting rod and is buckled with the brush head, the connecting plate and the connecting rod are distributed in a step shape and form connection, strip-shaped placing grooves corresponding to the connecting rod are formed in the two side portions of the inner wall of the brush holder shell, and the connecting rod is placed into the strip-shaped placing grooves.

Furthermore, the bristle driving mechanism comprises a crankshaft, a plurality of left and right sliding blocks and a transverse sliding rail mechanism, wherein a plurality of eccentric shafts are arranged on the crankshaft, vertical grooves are formed in the left and right sliding blocks, the eccentric shafts are located in the vertical grooves, and bristles are respectively arranged on the front surfaces of the left and right sliding blocks.

Furthermore, the eccentric shaft comprises an eccentric shaft A and an eccentric shaft B which are different in eccentric direction, the eccentric shaft A and the eccentric shaft B are distributed at intervals and are respectively placed in the vertical grooves, the transverse sliding rail mechanism 1 is a transverse sliding groove formed by separating a transverse partition plate, the left sliding block and the right sliding block are respectively arranged in the transverse sliding groove, bristles penetrate through bristle grooves in the shell and are fixed on the left sliding block and the right sliding block, and the width of the bristle grooves corresponds to the distance of the left and right movement of the bristles.

Furthermore, an annular gap is reserved at the joint of the brush head and the brush handle, an elastic sleeve is arranged at the annular gap, and the elastic sleeve changes along with the brush head in the process of moving up and down at high frequency.

The invention has the technical effects that:

1. this multidirectional integrated drive formula electric toothbrush can realize the whole high frequency of brush head simultaneously and reciprocate and the high frequency of controlling of brush hair removes to two sets of removals are all realized by one set of drive assembly, make electric toothbrush realize multiunit complex action simultaneously under the prerequisite that simple drive structure set up, thereby can cleaner brush teeth.

2. According to the brush head, the driving motor drives the fluted disc through the lower transmission shaft and the lower gear, the fluted disc drives the upper transmission shaft through meshing the upper gear, the cam fixed on the fluted disc can simultaneously push the whole brush head up and down through eccentric rotation, the group of transmission mechanisms is simple and efficient in structure, and can more efficiently and stably realize up-down and left-right high-frequency movement.

Drawings

Fig. 1 is a schematic perspective view of a multi-directional integrated driven electric toothbrush according to the present invention.

Fig. 2 is an enlarged schematic view of the back side of the toothbrush head in fig. 1 with the back cover plate removed.

Fig. 3 is a schematic view of a crankshaft structure driving bristles in a brush head.

Fig. 4 is a perspective view of the electric toothbrush with the rear housing removed.

Fig. 5 is an enlarged view of the structure of the intermediate transmission mechanism composed of the upper gear, the lower gear and the toothed disc in the electric toothbrush.

Fig. 6 is a perspective view of the electric toothbrush with the rear housing, the toothed disc, and the coupling ring removed.

Detailed Description

The present invention will be described in further detail with reference to examples.

Referring to fig. 1-6, a multidirectional combined driving type electric toothbrush provided in embodiment 1 of the present invention includes a brush handle 1 and a brush head 2, a driving motor is disposed in the brush handle 1, the motor drives a lower transmission shaft 3, a lower gear 4 is fixed to an end portion of the lower transmission shaft 3, a fluted disc 5 is disposed at an upper end of the lower gear 4, the fluted disc 5 is disposed transversely along a brush handle housing and can rotate around a transverse axis, in this embodiment, the fluted disc 5 is sleeved on a transverse rotating shaft 20, the fluted disc 5 has transversely distributed engaging teeth 6, an upper gear 7 is disposed at an upper end of the fluted disc 5, a lower portion of the fluted disc 5 is transversely engaged with the lower gear 4, an upper portion of the fluted disc 5 is engaged with the upper gear 7, the upper gear 7 is fixed to a lower end portion of an upper transmission shaft 8, the upper transmission shaft 8 is connected to a bristle driving mechanism on the brush, the upper end of the brush head connecting frame 9 is connected with the brush head 2, the lower end of the brush head connecting frame 9 is provided with the connecting ring 91, the connecting ring 91 is sleeved on the cam 51, the transverse width of the inner hole 92 of the connecting ring 91 is larger than or equal to the transverse swinging width range of the cam 51, and when the fluted disc 5 is driven to rotate by the lower gear 4, the cam 51 pushes the connecting ring 91 up and down so as to drive the brush head 2 to vibrate up and down. The brush hair driving mechanism comprises a crankshaft 10, a slot 11 is formed in the lower end of the crankshaft 10, an inserting end 81 is formed in the upper transmission shaft 8, the slot 11 is inserted into the inserting end 81, the cross section of the matching position of the slot 11 and the inserting end 81 is polygonal, the length of the inserting matching of the slot 11 and the inserting end 81 is larger than the moving range of the connecting ring 91 pushed by the cam 51, and therefore the brush head connecting frame 9 can be driven smoothly, and the brush head 2 is driven.

Referring to fig. 3-4, the brush head connecting frame 9 includes a connecting rod 93 and a connecting plate 94, the connecting ring 91 is disposed on the connecting plate 94, the upper end of the connecting rod 93 has a snap joint 94, the snap joint 94 is snap-connected to the brush head 2, the connecting plate 94 and the connecting rod 93 are distributed in a step shape and form a connection, two side portions of the inner wall of the housing of the brush holder 2 have strip-shaped grooves 95 corresponding to the connecting rod 93, and the connecting rod 93 is disposed in the strip-shaped grooves 95. The brush head connecting frame 9 has very compact structure, can be reasonably and efficiently installed in the narrow brush handle 1, and realizes double driving.

Referring to fig. 2-4, the bristle driving mechanism comprises a crankshaft 10, a plurality of left and right sliders 13 and a transverse sliding rail mechanism, wherein a plurality of eccentric shafts are arranged on the crankshaft 10, vertical slots 131 are arranged on the left and right sliders 13, the eccentric shafts are arranged in the vertical slots 131, and bristles 14 are respectively arranged on the front surfaces of the left and right sliders 13. The eccentric shafts comprise eccentric shafts A121 and B122 with different eccentric directions, the eccentric shafts A121 and B122 are distributed at intervals and are respectively placed in the vertical grooves 131, the transverse sliding rail mechanism is a transverse sliding groove 16 formed by separating a transverse partition plate 15, the left and right sliders 13 are respectively arranged in the transverse sliding groove 16, the bristles 14 penetrate through bristle grooves 17 on the shell and are fixed on the left and right sliders 13, and the width of the bristle grooves 17 corresponds to the distance of the left and right movement of the bristles 14. The structure of the crankshaft 10 of the bristle driving mechanism can enable one crankshaft 10 as a transmission rod to drive the left and right sliding blocks 13 in different directions at the same time, and is beneficial to efficient tooth brushing.

Referring to fig. 1, 4 and 5, an annular gap 18 is reserved at the joint of the brush head 2 and the brush handle 1, an elastic sleeve 19 is arranged at the annular gap 18, and the elastic sleeve 19 changes along with the process that the brush head 2 moves up and down at high frequency. The provision of the annular gap 18 and the elastomeric sleeve 19 enables the brush head 2 to move back and forth at high speed whilst maintaining the integrity of the seal and appearance.