CN201189217Y - Electric toothbrush - Google Patents

Abstract

The utility model belongs to necessities for daily life, and in particular relates to an electric toothbrush consisting of a power source shell (11), an electric motor (9), a battery (10), a power switch (12) and a reversing switch (13). The left end of the power source shell (11) is connected with a connecting shell (15) by use of a connecting switch (14); a coupling (8) is arranged in the shell (15); one end of the coupling (8) is fixed with the electric motor (9); one end of a driving brush shaft (4) is inserted in the middle of the coupling (8); a driving gear (6) is fixed on the driving brush shaft (4); the driving gear (6) meshes with a driven gear (7); the driven gear (7) is fixed on one end of a driven brush shaft (5); and brush hairs (3) are fixed around the front ends of the driving brush shaft (4) and the driven brush shaft (5). The electric toothbrush has the advantages that the electric toothbrush is convenient to control, has the brush hairs capable of rotating oppositely in different directions, cleans teeth thoroughly, and is especially suitable for people lacking wrist force.

Description

electric toothbrush

technical field

The utility model belongs to daily necessities, in particular to an electric toothbrush.

Background technique

At present, most of the toothbrushes used in people's daily life are manual toothbrushes with bristles on the head side of the toothbrush. People need to brush up and down with their hands and wrists. It is very inconvenient for some disabled people. Existing electric toothbrush has overcome above-mentioned deficiency, but electric toothbrush is a brush shaft, and bristle rotates with the same direction of shaft, can not thoroughly clean the deep part of tooth.

Contents of the invention

The purpose of the utility model is to overcome the above-mentioned technical deficiencies, and provide an electric toothbrush with a good effect of biaxial relative rotation for brushing teeth.

The technical solution adopted by the utility model to solve the technical problem is: the electric toothbrush is composed of a power supply housing, a motor, a battery, a power switch and a steering switch, and is characterized in that a connection housing is connected with a connection switch at the left end of the power supply housing, A coupling is installed in the middle, one end of the coupling is fixedly connected with the motor shaft, one end of the active brush shaft is inserted in the middle of the coupling, and a driving gear is fixed on the active brush shaft, the driving gear meshes with the passive gear, and the passive gear is fixed on the passive shaft. On one end of the brush shaft, the bristles are fixed around the front ends of the active brush shaft and the passive brush shaft. The brush shaft hole and the brush shell are made into an inverted U shape. Two parallel circular bosses are arranged in the front end, and a hole is arranged in the middle of the round bosses. The active brush shaft and the passive brush shaft with bristle ends are inserted into the round boss holes.

The beneficial effects of the utility model are: the electric toothbrush is convenient to control, the bristles can be rotated relative to each other in different directions, and the teeth are thoroughly cleaned, and the toothbrush is especially suitable for people with insufficient wrist strength.

Description of drawings

The following will be described in detail with examples in conjunction with the accompanying drawings.

Fig. 1 is a front sectional view of the electric toothbrush structure.

Fig. 2 is an enlarged view of the P direction in Fig. 1 .

In the figure, 1-brush casing boss; 2-brush casing; 3-bristles; 4-active brush shaft; 5-passive brush shaft; 6-driving gear; 7-passive gear; 8-coupling; ; 10-battery; 11-power shell; 12-power switch; 13-turn switch; 14-connection switch; 15-connection shell;

Detailed ways

Embodiment, with reference to accompanying drawing 1, 2, the power supply housing 11 of electric toothbrush is made step round shell shape, and two batteries 10 are fixedly installed in the shell, and a positive pole of battery 10, negative pole are connected, and the positive pole of one battery 10 is connected power supply One end of the switch 12, the negative pole of the other battery 10 is connected to the positive pole of the steering switch 13, the other end of the power switch 12 is connected to the negative pole of the steering switch 13, the positive and negative poles of the steering switch 13 are connected to the positive and negative poles of the motor 9, and the motor 9 is fixedly connected to the shaft. One end of the shaft 8 and the other end of the coupling 8 are inserted into the groove of the active brush shaft 4, a driving gear 6 is fixed on the active brush shaft 4, the driving gear 6 meshes with a passive gear 7, and the passive gear 7 is fixed on the passive brush shaft 5 . The driving gear 6, the driven gear 7 and the shaft coupling 8 are all contained in the connection housing 15, and the connection housing 15 is movably connected on the power supply housing 11 with the connection switch 14. The right end of the brush housing 2 is circular and is threadedly connected with the connection housing 15. The inner end surface of the thread is closed, and holes for the active brush shaft 4 and the passive brush shaft 5 are provided on the closed surface to prevent water from entering the connection housing 15 when brushing teeth. And in the power housing 11. The front end of the brush housing 2 is made into an inverted U shape. Two circular bosses 1 are arranged on the inner surface of the front end of the brush housing 2, and holes are set in the circular bosses 1, and the front ends of the active brush shaft 4 and the passive brush shaft 5 with bristles are inserted into the holes of the boss 1 in parallel. The bristles 3 are fixed at the front end of the active brush shaft 4 and the passive brush shaft 5, and the active brush shaft 4 and the passive brush shaft 5 can rotate inwardly and outwardly under the control of the steering switch 13 to drive the bristle 3 to clean the teeth.

The material of the electric toothbrush is made of non-toxic hard plastic.

Claims (1)

1. An electric toothbrush is composed of a power supply housing (11), a motor (9), a battery (10), a power switch (12), and a steering switch (13), and is characterized in that the left end of the power supply housing (11) is used Connection switch (14) connects a connection casing (15), and shaft coupling (8) is housed in casing (15), and shaft coupling (8) one end is fixedly connected with motor (9) shaft, and shaft coupling ( 8) One end of the active brush shaft (4) is inserted in the middle, and a driving gear (6) is fixedly installed on the active brush shaft (4). The driving gear (6) meshes with the driven gear (7), and the driven gear (7) is fixed on the passive On one end of the brush shaft (5), the bristles (3) are fixed around the front ends of the active brush shaft (4) and the passive brush shaft (5). The casing (15) is threaded, and the inner end of the thread is closed. The active brush shaft (4) and the passive brush shaft (5) holes are arranged on the closed surface, and the brush shell (2) is made into an inverted U shape. Two parallel circular bosses (1), holes are arranged in the middle of the circular bosses (1), and the ends of the active brush shaft (4) and the passive brush shaft (5) with bristles (3) are inserted into the holes of the circular boss (1).