CN201223467Y

CN201223467Y - Electric toothbrush

Info

Publication number: CN201223467Y
Application number: CNU2008201215994U
Authority: CN
Inventors: 叶万青
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-17
Filing date: 2008-07-17
Publication date: 2009-04-22
Anticipated expiration: 2018-07-17

Abstract

The utility model relates to an electric toothbrush which comprises a brush head mechanism, a swinging mechanism and a shell, wherein a swinging rod is L-shaped, and comprises a swinging shaft and a swinging arm, the swinging shaft is mutually perpendicular to the swinging arm, a vertical penetrating sliding chute is formed on the swinging arm of the swinging rod, an interlocking mechanism is an eccentric wheel arranged at one end of the output shaft of a motor, a shaft hole corresponding to the sliding chute on the swinging rod is formed in the position of the eccentric wheel which deviates from the center of circle thereof, the upper end of a connecting axle is movably inserted in the sliding chute for the swinging rod, the lower end of the connecting axle is fixed in the axle hole of the eccentric wheel, and a swinging interlocking connection is formed through the sliding of the eccentric wheel in the sliding chute through the connecting axle and the back-and-forth swinging of the swinging arm around the swinging shaft. The motor drives the eccentric wheel to cause the connecting axle on the eccentric wheel to slide in the sliding chute on the swinging shaft and to cause the swinging arm to swing back and forth around the swinging shaft, thereby the rotation of the main axle is realized. Compared with the prior art, the connecting rod is not used, and the swinging mechanism is simplified through the connection between the swinging rod and the eccentric wheel through the connecting axle, thereby the work is more reliable.

Description

Electric toothbrush

Technical field

This utility model relates to a kind of articles for daily use, relates in particular to a kind of electric toothbrush.

Background technology

Electric toothbrush on the market now is made up of parts such as brush mechanism, swing mechanism, housings, wherein brush mechanism is made up of brush dish, brush holder, brush dish seat, swing mechanism is made up of motor, fork, connecting rod, main shaft, front-end of spindle links to each other with the brush dish, rear-end of spindle is connected with fork, motor makes the connecting rod action, connecting rod drives fork again and swings back and forth, the final swing that realizes main shaft, but the parts in this swing mechanism are many, complex structure, and owing to motor process also relative complex, so functional reliability is not high.

Summary of the invention

The purpose of this utility model is to overcome the defective of prior art, provides a kind of structure simpler, compacter, the more reliable electric toothbrush of working.

For achieving the above object, this utility model adopts a kind of electric toothbrush, comprise brush mechanism, swing mechanism, housing, wherein brush mechanism comprises the brush dish, brush holder, swing mechanism comprises motor, fork, main shaft, link gear, front-end of spindle links to each other with brush dish seat, rear-end of spindle is connected with fork, motor is connected by link gear and fork formation, fork is the L type, have balance staff and swing arm two parts, both are vertical mutually, the swing arm of fork is provided with the slippage slot of up/down perforation, link gear is the eccentric that is arranged on motor output shaft one end, and at the corresponding axis hole of slippage slot that departs from the eccentric on its home position formation and the fork, connecting axle upper end is movable to be plugged in the slippage slot of fork, the lower end of connecting axle is fixed in the eccentric axis hole, and eccentric swings back and forth around balance staff and constitutes swing and be connected by the slippage and the swing arm of connecting axle in slippage slot.

In order to realize best wobbling action, it is identical with eccentric diameter on the motor that this utility model further is set to the flute length of the slippage slot on the fork again, and the lowest point of the swing route of fork top link is lower than the eccentric cylindrical minimum point on the corresponding motor.

This utility model rotates by the driven by motor eccentric, make in the slippage slot of connecting axle on fork on it and slide, pendulum is swung back and forth around balance staff, thereby realize the motion of main shaft, compare with prior art, saved connecting rod, will link to each other between fork and the eccentric by connecting axle, simplified swing mechanism, made its work more reliable.

Description of drawings

Fig. 1 is this utility model example structure exploded view.

Fig. 2 is the F portion enlarged drawing of Fig. 1.

Fig. 3 is this utility model embodiment swing mechanism axonometric chart.

Fig. 4 is this utility model embodiment swing mechanism vertical view.

The specific embodiment

As Fig. 1, shown in 2, this utility model specific embodiment is a kind of electric toothbrush, comprise brush mechanism 1, swing mechanism 2 (Fig. 3,4), housing 3, button 5 parts such as grade, wherein brush mechanism is coiled by brush, brush holder, brush dish seat is formed, swing mechanism 2 comprises motor 21, fork 22, main shaft 23, eccentric 24, fork 22 is the L type, and have balance staff 221 and swing arm 222 two parts, balance staff 221 is vertical mutually with swing arm 222, the swing arm 222 of fork 22 is provided with the slippage slot 2221 of up/down perforation, the flute length of slippage slot 2221 is L, main shaft 23 front ends link to each other with brush dish seat, main shaft 23 rear ends are connected with balance staff 221 on the fork 22, eccentric 24 is arranged on motor 21 output shafts one end, the diameter of eccentric 24 is D, at the slippage slot 2221 corresponding axis holes 241 that depart from the eccentric 24 on its home position formation and the fork 22, the 4 upper end activities of one connecting axle are plugged in the slippage slot 2221 of fork 22, the lower end of connecting axle 4 is fixed in the axis hole 241 of eccentric 24, eccentric 24 swings back and forth around balance staff 221 and constitutes swing and be connected by the slippage and the swing arm 222 of connecting axle 4 in slippage slot 2221, the diameter D of the eccentric 24 on the flute length L of the slippage slot 2221 on the fork 22 and the motor 21 is identical, and the lowest point of the swing route of fork 22 top links 222 is lower than the cylindrical minimum point of the eccentric 24 on the corresponding motor 21.

Driving eccentric 24 by motor 21 rotates, make in the slippage slot 2221 of connecting axle 4 on fork 22 on it and slide, swing arm 222 is swung back and forth around balance staff 221, thereby realize the motion of main shaft 23, compare with prior art, saved connecting rod, will link to each other between fork 22 and the eccentric 24 by connecting axle 23, simplified swing mechanism 2, made its work more reliable.

Claims

1, a kind of electric toothbrush, comprise brush mechanism, swing mechanism, housing, wherein brush mechanism comprises the brush dish, brush holder, swing mechanism comprises motor, fork, main shaft, link gear, front-end of spindle links to each other with brush dish seat, rear-end of spindle is connected with fork, motor is connected by link gear and fork formation, it is characterized in that: described fork is the L type, have balance staff and swing arm two parts, both are vertical mutually, the swing arm of fork is provided with the slippage slot of up/down perforation, link gear is the eccentric that is arranged on motor output shaft one end, at the corresponding axis hole of slippage slot that departs from the eccentric on its home position formation and the fork, one connecting axle upper end is movable to be plugged in the slippage slot of fork, and the lower end of connecting axle is fixed in the eccentric axis hole, and eccentric swings back and forth to constitute to swing around balance staff with swing arm by the slippage of connecting axle in slippage slot and is connected.

2, electric toothbrush according to claim 1, it is characterized in that: the flute length of the slippage slot on the described fork is identical with eccentric diameter on the motor, and the lowest point of the swing route of fork top link is lower than the eccentric cylindrical minimum point on the corresponding motor.