this devise is that the present applicant is registered as a Utility Model Registration No. 20-0464635 owners No. (Name of devising: the electric toothbrush) rotate, as well as the Chimoio to improve designed for, on the toothbrush to manage the more clean the teeth by a, of course, before the return to the backward to facilitate that, Stand inside the fluid 200 before the gear to the side at the same time as embedded circular Chimoio 120 on both sides of a backward rail predetermined period reciprocation to facilitate groove 110 and a rail groove 110 of 100 140 doedoe having a Chimoio body 130 is free to rotate so easily formed, the base 100 is the, in the downward direction so that a predetermined length reciprocation and the end portion is connected to the hinge 400, the connecting load while a predetermined interval forward and, in accordance with the operation of 300, the upper end at the same time, the reciprocating motion is straight Chimoio 210 is buried, the sides, the gear 220 is formed, fluid 200 is a rail groove ( configuration seating 110), said fluid (200), the drive shaft of the drive motor 500 so that the former, with a predetermined period with reciprocating movement and direction in the rail groove 110, 530 and crank arm 510 and eccentric shaft ( 520) doedoe a connecting rod 300 is connected to, the connecting rod 300 has fluid 200 and the flow formed in the center of one side configured at the same time an integral slot (310) is connected to the hinge 400, two-headed Chimoio 210 I, and to return this to the backward, circular in the process of reciprocating the Chimoio 120 above and at the same time the rotation of the Chimoio (120,210) is on, as a predetermined period with the flow in the downward direction will be one such that the teeth .본 고안은 본원 출원인이 등록권리자로 있는 실용신안등록 제20-0464635호(고안의 명칭:전동칫솔)에 대한 개량고안으로 치모의 회전뿐만 아니라, 상, 하는 물론, 전, 후 방향으로 왕복이 용이하도록 함으로써 치아를 보다 더 청결하게 관리할 수 있도록 하는 전동칫솔에 관한 것으로,받침대(100)의 내측으로 유동체(200)가 전, 후 방향으로 일정구간 왕복운동이 용이하도록 레
