WO2016033758A1

WO2016033758A1 - Electric toothbrush with large swing amplitude

Info

Publication number: WO2016033758A1
Application number: PCT/CN2014/085842
Authority: WO
Inventors: 姜付成; 李众志; 王恪典; 姜常勇
Original assignee: 东莞市颐美电子科技有限公司
Priority date: 2014-09-03
Filing date: 2014-09-03
Publication date: 2016-03-10

Abstract

An electric toothbrush with a large swing amplitude. The electric toothbrush comprises a handle (1) provided with a hollow cavity (11) and a brush head (2) inserted in one end of the handle (1). A dual-swing-arm rotation mechanism (5) is driven by a motor (4). The dual-swing-arm rotation mechanism (5) is connected to a brush head rotation shaft (6). The brush head rotation shaft (6) extends out of the handle (1). The brush head (2) is connected to a tail end of the brush head rotation shaft (6). According to the electric toothbrush, the dual-swing-arm rotation mechanism (5) is connected to the brush head rotation shaft (6) and is then connected to the brush head (2), and the rotation of the motor (4) allows, by means of the dual-swing-arm rotation mechanism (5), the brush head rotation shaft (6) to carry out reciprocating mechanical rotation, which acts on the brush head (2) to make the brush head (2) carry out reciprocating mechanical rotation. Driven by the motor, the electric toothbrush has a large swing amplitude and strong force, and effectively cleans teeth with strong force and a large amplitude. The toothbrush has a small quantity of components, is easy to assemble, and has low manufacturing and production costs.

Description

Wide swinging electric toothbrush

Technical field

The invention relates to the technical field of electric toothbrushes, in particular to a wide-swing electric toothbrush.

Background technique

The electric toothbrush has the function of automatically cleaning the teeth and has a good cleaning effect, and is more and more favored by more consumers; however, the current electric toothbrush generally includes a handle provided with a hollow cavity and a brush head inserted at one end of the handle. The battery and the electromagnet oscillating device electrically connected to the battery are driven by the electromagnet oscillating device to brush the teeth; however, the electromagnet oscillating device drives the brush head, although the frequency is high, but the swing is small and the force is small. It is weak and can't clean the teeth very well. In addition, the electromagnet oscillating device has more electronic small parts, complicated assembly, high manufacturing cost and high production cost.

Summary of the invention

The present invention is directed to a wide swinging electric toothbrush that solves the above problems in view of the deficiencies of current electric toothbrushes.

In order to achieve the above object, the present invention adopts the following technical solutions:

The utility model relates to a wide-swing electric toothbrush, which comprises a handle provided with a hollow cavity and a brush head inserted at one end of the handle; the handle is provided with a battery and a motor in sequence in the hollow cavity to the mounting brush head. Electrically connected to the motor, the motor drives A double swing arm rotating mechanism is driven, the double swing arm rotating mechanism is connected to a brush head rotating shaft, and the brush head rotating shaft extends out of the handle, and the brush head is connected to the end of the brush head rotating shaft.

Preferably, the double swing arm rotating mechanism comprises an eccentric bearing connected to the eccentric position of the motor turntable of the motor, the eccentric bearing is clamped in a long slot of the swing block, and the swing block is hinged through a rotating shaft In the hollow cavity, the other side of the swinging block is provided with a dial, the dial is inserted into a swinging groove of the swinging piece, and the swinging piece is connected to the rotating shaft of the brush head.

Preferably, the rotating shaft connecting the swinging blocks is disposed on a connecting seat in the hollow cavity.

Preferably, the brush head shaft is disposed on a ring seat fixed in the hollow cavity.

Preferably, the handle is provided with a touch switch that controls the conduction of the circuit.

Preferably, the cavity of the double swing arm rotating mechanism is filled with a shock absorbing grease.

The utility model has the beneficial effects that the electric toothbrush comprises a handle provided with a hollow cavity and a brush head inserted at one end of the handle; the handle is arranged with a battery and a motor in the hollow cavity to the end of the mounting brush head, and the battery is electrically connected. To the motor, the motor drives a double swing arm rotating mechanism, the double swing arm rotating mechanism is connected to a brush head rotating shaft, the brush head rotating shaft extends out of the handle, and the brush head is connected to the brush head rotating shaft end; The electric toothbrush is connected to the brush head through a double swing arm rotating mechanism, and then connected to the brush head, and the rotation of the motor is rotated by the double swing arm rotating mechanism to reciprocate mechanically rotate the brush head shaft, thereby causing the brush head to perform reciprocating mechanical rotation. Driven by the motor, the swing is large, the force is strong, and the teeth are effectively cleaned with a strong force and a large extent; in addition, the toothbrush fittings of the invention are few, the assembly is simple, and the manufacturing and production costs are low.

DRAWINGS

Figure 1 is a schematic cross-sectional view of the present invention

2 is an exploded perspective view of the double swing arm rotating mechanism of the present invention;

detailed description

The present invention will be further described below in conjunction with FIGS. 1 and 2.

A wide-swing electric toothbrush comprising a handle 1 provided with a hollow cavity 11 and a brush head 2 inserted at one end of the handle 1; the handle 1 is sequentially disposed in the hollow cavity 11 toward the end of the mounting brush head 2 a battery 3, a motor 4, the battery 3 is electrically connected to the motor 4, the motor 4 drives a double swing arm rotating mechanism 5, the double swing arm rotating mechanism 5 is connected to a brush head shaft 6, and the brush head shaft 6 is extended. The handle 1 is connected, and the brush head 2 is connected to the end of the brush head shaft 6.

As a preferred embodiment of the present invention, the double swing arm rotating mechanism 5 of the present invention includes an eccentric bearing 51 that is coupled to the eccentric position of the motor turntable 41 of the motor 4, and the eccentric bearing 51 is attached to the elongated slot 521 of the swing block 52. The swinging block 52 is hinged in the hollow cavity 11 through a rotating shaft 53. The motor 4 rotates to rotate the biasing bearing in the elongated slot 521, so that the swinging block 52 swings around the rotating shaft 53, and the other side of the swinging block 52 A dial pin 522 is disposed, and the dial pin 522 is inserted into the swinging groove 541 of the swinging piece 54. The dialing pin 522 swings with the swinging block 52 to drive the brush head rotating shaft 6 to reciprocate at a certain angle around the center of the brush head rotating shaft 6.

For a better fixed connection, the shaft 53 connecting the oscillating block 52 is arranged on a connecting seat 55 in the hollow chamber 11; the head shaft 6 is passed through a ring seat 56 fixed in the hollow chamber 11.

In this embodiment, the touch switch 7 with the control circuit turned on is provided on the handle 1, which can be very good. Perform switching operations.

As a preferred embodiment, in the embodiment, the damping grease 8 is filled in the cavity of the double swing arm rotating mechanism 5, which can reduce noise, silence, shock absorption and lubrication.

The electric toothbrush of the present invention is connected to the brush head 2 by the double swing arm rotating mechanism 5, and then connected to the brush head 2, and the rotation of the motor 4 is reciprocally mechanically rotated by the double swing arm rotating mechanism 5 to the brush head shaft 6 The brush head 2 performs reciprocating mechanical rotation, is driven by the motor 4, has a large swing, strong force, and has strong strength and large effective cleaning on the teeth; in addition, the toothbrush accessories of the invention are few and the assembly is simple. Manufacturing and production costs are lower.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and equivalent changes or modifications to the structures, features, and principles described in the claims of the present invention should be included. Within the scope of the present patent application.

Claims

A wide swinging electric toothbrush comprising a handle (1) provided with a hollow cavity (11) and a brush head (2) inserted at one end of the handle (1); characterized in that the handle ( 1) A battery (3) and a motor (4) are sequentially disposed in the hollow chamber (11) toward the mounting brush head (2), and the battery (3) is electrically connected to the motor (4), the motor (4) Driving a double swing arm rotating mechanism (5), the double swing arm rotating mechanism (5) is connected to a brush head rotating shaft (6), the brush head rotating shaft (6) extends out of the handle (1), and the brush head (2) is connected The end of the brush head shaft (6).
A wide-swing electric toothbrush according to claim 1, wherein said double swing arm rotating mechanism (5) comprises an eccentric bearing (51) connected to an eccentric position of a motor turntable (41) of the motor (4). The eccentric bearing (51) is clamped in a long slot (521) of a swing block (52), and the swing block (52) is hinged in the hollow cavity (11) through a rotating shaft (53). The other side of the swinging block (52) is provided with a dial (522), the dial (522) is inserted into a swinging groove (541) of a swinging piece (54), and the swinging piece (54) is connected to the brush head. Rotating shaft (6).
A wide-swing electric toothbrush according to claim 2, characterized in that the rotating shaft (53) connecting the swinging block (52) is disposed on a connecting seat (55) in the hollow chamber (11).
A wide-swing electric toothbrush according to claim 1, characterized in that the head rotating shaft (6) is passed through a ring seat (56) fixed in the hollow chamber (11).
A wide-swing electric toothbrush according to claim 1, characterized in that the handle (1) is provided with a touch switch (7) for controlling the conduction of the circuit.
A wide-swing electric toothbrush according to any of claims 1-6, characterized in that the cavity of the double swing arm rotating mechanism (5) is filled with a damping grease (8).