CN213249925U

CN213249925U - Electric tooth brush

Info

Publication number: CN213249925U
Application number: CN202021014286.6U
Authority: CN
Inventors: 许小平; 沈路平
Original assignee: Hangzhou Newly Technology Co ltd
Current assignee: Hangzhou Newly Technology Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-05-25
Anticipated expiration: 2030-06-05

Abstract

The electric toothbrush comprises a brush handle and a brush head, wherein the brush head comprises a left rotating brush and a right rotating brush which are oppositely arranged on a brush shaft, the right end of the brush shaft can be rotatably arranged in a shaft hole at the upper end of the brush handle and is axially positioned on the shaft hole by the right rotating brush and a shaft cap at the right end of the brush shaft, a power source arranged in the brush handle is connected with a gear at the right side of the right rotating brush through a transmission shaft in the brush handle, and the right rotating brush drives the brush shaft to rotate; the bristles of the left rotating brush and the right rotating brush respectively comprise inner ring bristles and outer ring bristles, and the included angle between the inner ring bristles and the brush shaft is smaller than that between the outer ring bristles and the brush shaft; the left rotating hairbrush is slidably sleeved on the brush shaft, a spring is arranged between the left rotating hairbrush and the brush shaft, and the spring enables the left rotating hairbrush and the right rotating hairbrush to be close to each other. The distance between the brush hairs of the left brush and the right brush of the utility model can be automatically adapted to the thickness of the teeth, the end parts of the brush hairs can be ensured to contact the side surfaces of the teeth, and the cleaning efficiency of the brush hairs is higher; the comfort level of the human oral cavity is high.

Description

Electric tooth brush

Technical Field

The utility model relates to a toothbrush, especially an all-round electric toothbrush.

Background

At present, toothbrushes become necessary daily necessities for people. The toothbrush has various varieties, and particularly the electric toothbrush brings convenience for people to brush teeth. However, the conventional electric toothbrush has many defects, so that the electric toothbrush is not generally accepted.

Chinese patent publication No. CN201210502534 discloses an all-directional electric toothbrush, which comprises a left rotating brush and a right rotating brush arranged on a brush shaft. The brush has the disadvantages that the distance between the left and right brushes is fixed, the thickness of the molar is larger than that of the incisors, the brushes with the fixed distance can not adapt to the thickness of the teeth, and the heads of the brush hairs can not be ensured to act on the side surfaces of the teeth. The distance between the brushes on the left side and the right side can only be made according to the thickness of incisors, the bristles are bent when the teeth are brushed and ground, the head parts of the bristles cannot brush the side surfaces of the teeth, and the tooth brushing effect is insufficient.

Disclosure of Invention

The utility model overcomes the above disadvantages of the prior art, and provides an electric toothbrush which can automatically adapt to the tooth thickness at the distance between the left and right brush heads during the tooth brushing process.

The electric toothbrush comprises a brush handle and a brush head, wherein the brush head comprises a left rotating brush and a right rotating brush which are oppositely arranged on a brush shaft, the right end of the brush shaft can be rotatably arranged in a shaft hole at the upper end of the brush handle and is axially positioned on the shaft hole by the right rotating brush and a shaft cap at the right end of the brush shaft, a power source arranged in the brush handle is connected with a wheel gear at the right side of the right rotating brush through a transmission shaft in the brush handle, and the right rotating brush drives the brush shaft to rotate; the bristles of the left rotating brush and the right rotating brush respectively comprise inner ring bristles and outer ring bristles, and the included angle between the inner ring bristles and the brush shaft is smaller than that between the outer ring bristles and the brush shaft; the method is characterized in that: the left rotating brush is slidably sleeved on the brush shaft, an elastic body is arranged between the left rotating brush and the brush shaft, and the spring enables the left rotating brush and the right rotating brush to be close to each other.

Preferably, a fixed column is installed at the left end of the shaft brush, bristles are arranged on the right side face of the left rotating brush, the left side face of the left rotating brush is connected with a sleeve, the longitudinal axis of the sleeve and the brush shaft are on the same straight line, the sleeve is sleeved on the fixed column in an axially sliding mode, and a key used for driving the left rotating brush to rotate is arranged between the sleeve and the fixed column.

Preferably, the elastic body is arranged in the sleeve and sleeved on the brush shaft, and two ends of the elastic body respectively abut against the right side surface of the fixed column and the left side surface of the left rotating brush.

Preferably, the elastomer is a spring, and can also be silica gel or rubber.

The brush of the utility model has certain rigidity, if the distance between the left brush and the right brush is smaller than the thickness of the teeth in the process of brushing teeth, the brush of the left rotary brush head can push the left rotary brush head to slide along the brush shaft, and the right rotary brush head is kept away. If the distance between the left and right bristles is larger than the thickness of teeth, the spring can pull the left rotating brush and the right rotating brush closer.

The utility model has the advantages that: in the process of brushing teeth, the distance between the bristles of the left and right brushes can automatically adapt to the thickness of teeth, so that the end parts of the bristles can contact the side surfaces of the teeth, and the cleaning efficiency of the bristles is higher; the comfort level of the human oral cavity is high.

Drawings

Fig. 1 is a schematic structural view of the rotary brush heads on two sides of the embodiment of the present invention when they are closed.

Fig. 2 is a schematic structural view of the two sides of the rotating brush head of the embodiment of the present invention when separated.

Fig. 3 is a partially enlarged view of the rotary brush head of the present invention.

Fig. 4 is an exploded view of the rotary brush head of the present invention.

Fig. 5 is a left side view of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally and fixedly connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The numbering of the components in the figures means: brush holder 1, brush axle 2, left rotating brush 3, right rotating brush 4, spring 5, fixed column 6, sleeve 7, key 8.

The electric toothbrush comprises a brush handle 1 and a brush head, wherein the brush head comprises a left rotating brush 3 and a right rotating brush 4 which are oppositely arranged on a brush shaft 2, the right end of the brush shaft 2 can be rotatably arranged in a shaft hole at the upper end of the brush handle 1 and is axially positioned on the shaft hole by the right rotating brush 4 and a shaft cap at the right end of the brush shaft 2, a power source arranged in the brush handle 1 is connected with gear teeth at the right side of the right rotating brush 4 through a transmission shaft in the brush handle, and the right rotating brush 4 drives the brush shaft 2 to rotate; the bristles of the left rotary brush 3 and the right rotary brush 4 respectively comprise inner ring bristles and outer ring bristles, and the included angle between the inner ring bristles and the brush shaft is smaller than that between the outer ring bristles and the brush shaft; the left rotating brush can be slidably sleeved on a brush shaft for searching books, a spring 5 is arranged between the left rotating brush 3 and the brush shaft 2, and the spring 5 enables the left rotating brush 3 and the right rotating brush 4 to be close to each other.

The left end of the shaft brush 2 is provided with a fixed column 6, the right side face of the left-rotation brush 3 is provided with brush hair, the left side face of the left-rotation brush 3 is connected with a sleeve 7, the longitudinal axis of the sleeve 7 and the brush shaft 2 are on the same straight line, the sleeve 7 is sleeved on the fixed column 6 in an axially sliding manner, and a key 8 used for driving the left-rotation brush 3 to rotate is arranged between the sleeve 7 and the fixed column 6.

The spring 5 is arranged in the sleeve 7 and sleeved on the brush shaft 2, and two ends of the spring 5 respectively abut against the right side surface of the fixed column 6 and the left side surface of the left rotating brush 3.

The spring 5 may be made of an elastic material such as silicone rubber or rubber.

The brush of the utility model has certain rigidity, if the distance between the left brush and the right brush is less than the thickness of the teeth in the process of brushing teeth, the brush of the left rotary brush head 3 can push the left rotary brush head 3 to slide along the brush shaft 2, and the right rotary brush head 4 is kept away. The spring 5 makes the left rotary brush head 3 and the right rotary brush head 4 approach each other, so that the brush ends of the two rotary brush heads are tightly attached to the side surfaces of the teeth.

If the distance between the left and right brush hairs is larger than the thickness of the teeth, the spring 5 will pull the left rotary brush 3 and the right rotary brush 4 closer.

The utility model discloses at the in-process of brushing teeth, the brush hair interval of controlling the brush can be automatic and tooth thickness adaptation, guarantees that the tip of brush hair can hug closely the tooth side, and the cleaning efficiency of brush hair is higher.

Claims

1. The electric toothbrush comprises a brush handle and a brush head, wherein the brush head comprises a left rotating brush and a right rotating brush which are oppositely arranged on a brush shaft, the right end of the brush shaft can be rotatably arranged in a shaft hole at the upper end of the brush handle and is axially positioned on the shaft hole by the right rotating brush and a shaft cap at the right end of the brush shaft, a power source arranged in the brush handle is connected with a gear at the right side of the right rotating brush through a transmission shaft in the brush handle, and the right rotating brush drives the brush shaft to rotate; the bristles of the left rotating brush and the right rotating brush respectively comprise inner ring bristles and outer ring bristles, and the included angle between the inner ring bristles and the brush shaft is smaller than that between the outer ring bristles and the brush shaft; the method is characterized in that: the left rotating brush is slidably sleeved on the brush shaft, an elastic body is arranged between the left rotating brush and the brush shaft, and the elastic body enables the left rotating brush and the right rotating brush to be close to each other.

2. The powered toothbrush of claim 1, wherein: the brush is characterized in that a fixed column is installed at the left end of the brush shaft, bristles are arranged on the right side face of the left-rotation brush, the left side face of the left-rotation brush is connected with a sleeve, the longitudinal axis of the sleeve and the brush shaft are on the same straight line, the sleeve is sleeved on the fixed column in an axially sliding mode, and a key used for driving the left-rotation brush to rotate is arranged between the sleeve and the fixed column.

3. The powered toothbrush of claim 2, wherein: the elastic body is arranged in the sleeve and sleeved on the brush shaft, and two ends of the elastic body respectively abut against the right side surface of the fixed column and the left side surface of the left rotating brush.

4. The powered toothbrush of claim 3, wherein: the elastic body is a spring.