CN103976552B - A kind of percussion mechanism - Google Patents

Abstract

The invention discloses a vibrating mechanism, which comprises an upper fixing part used for connecting bristles and a lower fixing part used for connecting micro motors, the upper fixing part is connected with the lower fixing part through elastic parts, and the An eccentric mechanism is provided between the upper fixing part and the lower fixing part; its advantages are: 1. An eccentric mechanism is provided so that the brush mounting plate can rotate in a horizontal circle; 2. Two elastic parts are arranged symmetrically , during the rotation of the rotating shaft, the force of the two elastic parts is different, and the pulling force on both sides of the brush mounting plate is also different, thus realizing the longitudinal vibration of the brush mounting plate.

Description

a vibration mechanism

technical field

The invention relates to an internal mechanism of electric brushes, in particular to a vibrating mechanism.

Background technique

In power tools or electric daily brushes, many products have a vibrating mechanism inside to achieve the effect of massaging or brushing away dirt or particles.

Existing vibration mechanisms generally only achieve one-way vibration, such as vertical or horizontal vibration, and rarely can realize simultaneous vertical and horizontal motion.

Contents of the invention

The invention aims at the deficiencies of the prior art, and provides a vibrating mechanism capable of simultaneously realizing longitudinal and transverse vibrations.

In order to solve the above-mentioned technical problems, the present invention is solved by the following technical solutions: a vibrating mechanism, including an upper fixture for connecting bristles and a lower fixture for connecting micro motors, the upper fixture and the The lower fixing part is connected through elastic parts, and an eccentric mechanism is arranged between the upper fixing part and the lower fixing part.

The eccentric mechanism includes a drive shaft, an upper bearing and a lower bearing, the drive shaft includes an eccentric block, a driven shaft is arranged above the eccentric block, and the driven shaft is installed with the The upper bearing, the upper bearing is installed on the upper fixing part; the drive shaft is arranged under the eccentric block, and the front end of the drive shaft is provided with a transmission device for connecting the micro motor, the The lower bearing is installed on the driving shaft, and the lower bearing is installed on the lower fixing member; the centerline of the driven shaft and the centerline of the driving shaft are not on the same axis.

The upper fixing part includes a brush installation plate for installing bristles, a saddle seat with an opening facing downward is provided under the brush installation plate, and a saddle seat is provided in the middle of the saddle seat. counterbore, the upper bearing is installed in the counterbore, the two sides of the saddle seat are respectively provided with an upper lug, and the inner side of the upper lug is provided with an upper An installation groove, the upper end of the elastic part is stuck in the upper installation groove.

The center of the lower fixing part is provided with a through hole, the lower bearing is installed in the through hole, the two sides of the lower fixing part are respectively provided with a lower lug, and the lower bearing is installed in the through hole. The inner side of the hanging ear is provided with a lower installation groove with an opening facing upward, and the lower end of the elastic part is stuck in the lower installation groove.

The elastic part is an O-ring.

Compared with the prior art, the present invention has the following beneficial effects: 1. An eccentric mechanism is provided so that the brush mounting plate can rotate in a horizontal circle; , the force of the two elastic parts is different, and the pulling force on both sides of the brush mounting plate is also different, so that the longitudinal vibration of the brush mounting plate is realized.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of an embodiment of the present invention.

Fig. 2 is an exploded view of the parts of the embodiment of the present invention.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail: as shown in Fig. 1, Fig. 2, label is as follows among the figure: upper fixing part 1, lower fixing part 2, elastic part 3, eccentric mechanism 4, transmission shaft 5 , upper bearing 6, lower bearing 7, eccentric block 8, driven shaft 9, driving shaft 10, transmission device 11, brush mounting plate 12, saddle seat 13, counterbore (not shown in the figure), upper lug 14 , Upper mounting groove 15, through hole 16, lower hanging lug 17, lower mounting groove 18.

A vibrating mechanism includes an upper fixture 1 for connecting bristles and a lower fixture 2 for connecting a micro motor, the upper fixture 1 and the lower fixture 2 are connected through elastic parts 3, the upper fixture 1 and the lower fixture An eccentric mechanism 4 is arranged between the 2.

The eccentric mechanism 4 includes a transmission shaft 5, an upper bearing 6 and a lower bearing 7, the transmission shaft 5 includes a fan-shaped eccentric block 8, a driven shaft 9 is arranged above the eccentric block 8, and an upper bearing 6 is installed on the driven shaft 9. The upper bearing 6 is installed on the upper fixing part 1; the drive shaft 10 is arranged under the eccentric block 8, and the front end of the drive shaft 10 is provided with a transfer device 11 for connecting the micro motor, and the transfer device 11 is optimized to use a pointed cross slotted The lower bearing 7 is installed on the driving shaft 10, and the lower bearing 7 is installed on the lower fixing part 2; the center line of the driven shaft 9 and the center line of the driving shaft 10 are not on the same axis; the eccentric mechanism 4 can make the upper fixing part 1 Circular rotation in the same plane, front and back, left and right.

The upper fixture 1 includes a brush mounting plate 12 for installing the bristles, a saddle 13 with an opening facing downwards is provided below the brush mounting plate 12, and a counterbore is provided in the middle of the saddle 13. The bearing 6 is installed in the counterbore, and an upper lug 14 is provided on both sides of the saddle seat 13, and an upper mounting groove 15 with an opening facing downward is arranged on the inner side of the upper lug 14, and the upper end of the elastic part 3 is stuck on the upper Installed in groove 15.

A through hole 16 is arranged at the center of the lower fixing part 2, and the lower bearing 7 is installed in the through hole 16. A lower hanging ear 17 is arranged on each side of the lower fixing part 2, and an opening is arranged inside the lower hanging ear 17. The lower mounting groove 18 faces upward, and the lower end of the elastic part 3 is stuck in the lower mounting groove 18 .

The elastic part is an O-ring.

During the rotation of the transmission shaft 5, the two elastic parts 3 are subjected to different forces at the same time, so that the brush mounting plate 12 vibrates longitudinally, and when one side is lifted, the other side will be lifted. Pulling down, combined, the brush mounting plate 12 can realize simultaneous vertical and horizontal vibrations.

This vibrating mechanism can also be used in fields such as facial massage, makeup removal, teeth brushing, and fingernail brushing.

Claims (4)

1. a percussion mechanism, it is characterized in that: comprise the upper fixing element (1) for connecting bristle and the lower fixture (2) for being connected micro-shaped motor, described upper fixing element (1) is connected by elastic part (3) with described lower fixture (2), is provided with eccentric stiffener (4) between described upper fixing element (1) and described lower fixture (2); Described eccentric stiffener (4) comprises power transmission shaft (5), upper bearing (metal) (6) and lower bearing (7), described power transmission shaft (5) comprises the eccentric block (8) of, the top of described eccentric block (8) is provided with driven shaft (9), described driven shaft (9) is provided with described upper bearing (metal) (6), and described upper bearing (metal) (6) is arranged on described upper fixing element (1); The below of described eccentric block (8) is provided with driving shaft (10), the front end of described driving shaft (10) is provided with the transfer device (11) for connecting micro-shaped motor, described driving shaft (10) is provided with described lower bearing (7), and described lower bearing (7) is arranged on described lower fixture (2); The center line of described driven shaft (9) and the center line of described driving shaft (10) are not on the same axis.

2. percussion mechanism as claimed in claim 1, it is characterized in that: described upper fixing element (1) comprises one for installing the hairbrush installing plate (12) of bristle, the below of described hairbrush installing plate (12) is provided with a downward opening saddle seat (13), the centre position of described saddle seat (13) is provided with a counterbore, described upper bearing (metal) (6) is arranged in described counterbore, the both sides of described saddle seat (13) are respectively provided with a upper hangers (14), the inner side of described upper hangers (14) is provided with a downward opening upper mounting groove (15), the upper end of described elastic part (3) is stuck in described upper mounting groove (15).

3. percussion mechanism as claimed in claim 2, it is characterized in that: the center of described lower fixture (2) is provided with a through hole (16), described lower bearing (7) is arranged in described through hole (16), the both sides of described lower fixture (2) are respectively provided with a lower hangers (17), the inner side of described lower hangers (17) is provided with an opening up lower mounting groove (18), and the lower end of described elastic part (3) is stuck in described lower mounting groove (18).

4. percussion mechanism as claimed in claim 2 or claim 3, is characterized in that: described elastic part (3) is O shape circle.