U-shaped electric toothbrush and toothbrushing method thereof

Abstract

The present invention discloses a U-shaped electric toothbrush and a method for brushing teeth. The toothbrush comprises a handle and a motor rotating shaft extending out of the handle, an inner cam and an outer cam are fixedly installed on the motor rotating shaft, an inner brush sheet is inserted at a position adjacent to the inner cam on the motor rotating shaft, and an outer brush sheet is inserted at a position adjacent to the outer cam, a base body inserted on the motor rotating shaft is sandwiched between the inner and outer brush sheets, and bristles are installed on the opposite surfaces of the inner and outer brush sheets, the inner cam is embedded in the inner brush sheet and can drive the inner brush sheet to slide back and forth along the base, the outer cam is embedded in the outer brush sheet and can drive the outer brush sheet to slide back and forth along the base, and the inner cam and the outer cam are also respectively matched with the inner brush sheet and the outer brush sheet, so that the inner brush sheet and the outer brush sheet can slide back and forth along the motor rotating shaft together with the base. In the U-shaped electric toothbrush and the method for brushing teeth disclosed by the present invention, the cam can drive the brush sheet to slide back and forth, and can also make the brush sheet slide back and forth, thereby realizing orthogonal brushing with upper and lower front and back superposition, and the brushing effect is better.

Description

Technical Field

[0001] The invention belongs to the field of electric toothbrushes, and in particular relates to a U-shaped electric toothbrush and a teeth brushing method thereof in the field. Background Art

[0002] Chinese utility model patent CN 209152510U discloses a smart toothbrush, which includes a brush head and a host; the brush head includes a brush head body, a first support frame and a motor; the host includes a housing, a brush head seat, a second support frame, a liquid storage tank for holding toothpaste liquid, a PCB board, a battery, an air pump and a controller, and the brush head seat is connected to the rear end of the first support frame, the PCB board, the battery, and the air pump are sequentially installed on the second support frame, and the controller is installed on the PCB board; an air inlet is set on the housing, and a sensor set on the PCB board is connected to the controller circuit, the sensor detects the gas entering from the air inlet and transmits the detection value to the controller, and the controller outputs the detection value. It can only perform up and down brushing, and cannot brush front and back, and the brushing effect is not ideal. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a U-shaped electric toothbrush which can brush up and down as well as front and back and a toothbrushing method thereof.

[0004] The present invention adopts the following technical solution:

[0005] A U-shaped electric toothbrush, the improvement of which lies in: comprising a handle and a motor rotating shaft extending out of the handle, an inner cam and an outer cam fixedly mounted on the motor rotating shaft, an inner brush sheet inserted at a position adjacent to the inner cam on the motor rotating shaft, an outer brush sheet inserted at a position adjacent to the outer cam, a base inserted on the motor rotating shaft is sandwiched between the inner and outer brush sheets, in addition, bristles are respectively mounted on opposite surfaces of the inner and outer brush sheets, the inner cam is embedded in the inner brush sheet and can drive the inner brush sheet to slide back and forth along the base, the outer cam is embedded in the outer brush sheet and can drive the outer brush sheet to slide back and forth along the base, the inner cam and the outer cam are also respectively matched with the inner brush sheet and the outer brush sheet, so that the inner brush sheet and the outer brush sheet can slide back and forth along the motor rotating shaft together with the base.

[0006] Furthermore, a hole matching the inner cam is provided on the surface of the inner brush piece opposite to the inner cam, and a vertically inclined inclined surface is provided in the hole. The inner cam is embedded in the hole of the inner brush piece and can drive the inner brush piece to slide back and forth along the base. A protrusion is provided on the surface of the inner cam opposite to the inclined surface of the hole in which it is located, and a hole matching the outer cam is provided on the surface of the outer brush piece opposite to the outer cam. A vertically inclined inclined surface is provided in the hole. The outer cam is embedded in the hole of the outer brush piece and can drive the outer brush piece to slide back and forth along the base. In addition, a protrusion is provided on the surface of the outer cam opposite to the inclined surface of the hole in which it is located. The protrusions on the inner cam and the outer cam respectively cooperate with the inclined surfaces in the holes of the inner brush piece and the outer brush piece, so that the inner brush piece and the outer brush piece can slide back and forth along the motor rotating shaft together with the base.

[0007] Furthermore, the bite switch in the base is electrically connected to the motor in the handle, and the bite switch can be closed when the teeth bite the base, and the motor can be started after the bite switch is closed to rotate the motor shaft.

[0008] Furthermore, the holes on the inner brush sheet and the holes on the outer brush sheet are both waist-shaped holes.

[0009] Furthermore, a blocking piece is inserted on the motor rotating shaft, and the blocking piece is located on the outer side of the outer cam.

[0010] Furthermore, the cross-sections of the inner brush sheet and the outer brush sheet are both U-shaped to match the shape of the teeth, and the width of the outer brush sheet is greater than that of the inner brush sheet.

[0011] Furthermore, elastic parts are arranged on the surfaces of the base body that match the outer brush sheet and the inner brush sheet.

[0012] Furthermore, the protrusions on the inner cam and the outer cam are 180° apart in the vertical direction, and the inclined surfaces in the holes of the inner brush plate and the outer brush plate have the same inclination angle in the vertical direction.

[0013] A method for brushing teeth, using the above-mentioned U-shaped electric toothbrush, the improvement of which is that after the user puts the inner brush piece, outer brush piece and base of the U-shaped electric toothbrush into the mouth, the user bites the base with teeth to close the bite switch, and after the bite switch is closed, the motor can be started so that the motor rotating shaft drives the inner cam and the outer cam to rotate, the inner cam is embedded in the waist-shaped hole of the inner brush piece and can drive the inner brush piece to slide back and forth along the base, the outer cam is embedded in the waist-shaped hole of the outer brush piece and can drive the outer brush piece to slide back and forth along the base, the protrusions on the inner cam and the outer cam are respectively matched with the inclined surfaces in the waist-shaped holes of the inner brush piece and the outer brush piece, and the two protrusions separated by 180° alternately push the inclined surfaces opposite to them during the rotation process, so that the inner brush piece and the outer brush piece can slide back and forth along the motor rotating shaft together with the base, thereby realizing orthogonal brushing that is superimposed in the front and back and up and down directions at the same time.

[0014] The beneficial effects of the present invention are:

[0015] The U-shaped electric toothbrush and the teeth brushing method disclosed in the present invention can drive the brush piece to slide back and forth up and down and also slide back and forth, thereby realizing orthogonal teeth brushing that is superimposed up and down and front and back, and the teeth brushing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a U-shaped electric toothbrush disclosed in Embodiment 1 of the present invention;

[0017] Figure 2 It is a schematic diagram of the exploded components of the U-shaped electric toothbrush disclosed in Example 1 of the present invention;

[0018] Figure 3 It is a structural schematic diagram of a U-shaped inner brush piece in a U-shaped electric toothbrush disclosed in Example 1 of the present invention;

[0019] Figure 4 It is a schematic structural diagram of a base body in a U-shaped electric toothbrush disclosed in Example 1 of the present invention;

[0020] Figure 5 It is a structural schematic diagram of a U-shaped outer brush piece in a U-shaped electric toothbrush disclosed in Embodiment 1 of the present invention;

[0021] Figure 6a It is a schematic diagram of the main structure of the cam in the U-shaped electric toothbrush disclosed in Example 1 of the present invention;

[0022] Figure 6b is a schematic side view of the structure of the cam in the U-shaped electric toothbrush disclosed in Example 1 of the present invention;

[0023] Figure 7 It is a structural schematic diagram of a baffle in a U-shaped electric toothbrush disclosed in Embodiment 1 of the present invention;

[0024] Figure 8 It is a schematic diagram of the function of the baffle in the U-shaped electric toothbrush disclosed in Example 1 of the present invention;

[0025] Fig. 9 It is a schematic diagram of the coordination of the cam and the waist-shaped hole in the U-shaped electric toothbrush disclosed in Example 1 of the present invention;

[0026] Fig.10 It is a schematic diagram of the coordination between the inner and outer cam protrusions and the inner and outer brush blade inclined surfaces in the U-shaped electric toothbrush disclosed in Example 1 of the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] Embodiment 1, as Figure 1-2 As shown, this embodiment discloses a U-shaped electric toothbrush, including a handle 6 and a motor shaft 4 extending out of the handle, on which an inner cam 51 and an outer cam 53 (the cam structure is as shown in FIG. Figure 6a , 6b), an inner brush sheet 1 is inserted at a position adjacent to the inner cam on the motor shaft, an outer brush sheet 3 is inserted at a position adjacent to the outer cam, and a base 2 (structure as shown in FIG. 6b) is inserted on the motor shaft. Figure 4 The inner and outer brush pieces are sandwiched between the base and the outer and inner brush pieces, that is, the base is in surface contact with the outer and inner brush pieces, and the inner and outer brush pieces can slide up and down along the base. In addition, bristles are installed on the opposite surfaces of the inner and outer brush pieces, the inner cam is embedded in the inner brush piece and can drive the inner brush piece to slide up and down along the base, the outer cam is embedded in the outer brush piece and can drive the outer brush piece to slide up and down along the base, and the inner cam and the outer cam are respectively matched with the inner and outer brush pieces, so that the inner and outer brush pieces can slide back and forth along the motor rotating shaft together with the base.

[0029] Specifically, Figure 3 Therefore, a hole matching the inner cam is set on the surface of the inner brush piece opposite to the inner cam, the hole-axis between the motor shaft and the inner brush piece is matched with a large gap, a vertically inclined slope is set in the hole, the inner cam is embedded in the hole of the inner brush piece and can drive the inner brush piece to slide up and down along the base body, which requires that the aperture of the inner brush piece can cover the relative motion space between the base body and the inner brush piece, and a protrusion is set on the surface of the inner cam opposite to the slope of the hole where it is located. Figure 5 As shown, a hole matching the outer cam is provided on the surface opposite to the outer cam of the outer brush piece, and the hole-axis between the motor rotating shaft and the outer brush piece is matched with a large gap, and a vertically inclined inclined surface is provided in the hole. The outer cam is embedded in the hole of the outer brush piece and can drive the outer brush piece to slide back and forth along the base body, which requires that the aperture of the outer brush piece can cover the relative movement space between the base body and the outer brush piece. In addition, a protrusion is provided on the surface of the outer cam opposite to the inclined surface of the hole in which it is located, and the protrusions on the inner cam and the outer cam respectively match the inclined surfaces in the holes of the inner brush piece and the outer brush piece, so that the inner brush piece and the outer brush piece can slide back and forth along the motor rotating shaft together with the base body.

[0030] In this embodiment, the bite switch in the base is electrically connected to the motor in the handle. When the teeth bite the base, the bite switch can be closed. When the bite switch is closed, the motor can be started to rotate the motor shaft.

[0031] like Fig. 9 As shown, the holes on the inner brush sheet and the holes on the outer brush sheet are both waist-shaped holes.

[0032] A baffle 7 (structured as shown in FIG. Figure 7 As shown in the figure), the baffle is located on the outside of the outer cam (i.e., on the Figure 2 Behind the middle and outer cams, close to the handle).

[0033] In this embodiment, the cross-sections of the inner brush sheet and the outer brush sheet are both U-shaped to match the shape of the teeth, and the width of the outer brush sheet is greater than that of the inner brush sheet.

[0034] In this embodiment, elastic parts are arranged on the surfaces of the base body that match the outer brush sheet and the inner brush sheet so as to enable resetting when necessary.

[0035] like Fig.10 As shown, the protrusions on the inner cam and the outer cam are 180° apart in the vertical direction, and the inclined surfaces in the holes of the inner brush plate and the outer brush plate have the same inclination angle in the vertical direction.

[0036] The present embodiment also discloses a method of brushing teeth. Using the above-mentioned U-shaped electric toothbrush, after the user puts the inner brush blade, outer brush blade and base of the U-shaped electric toothbrush into the mouth, the user bites the base with the teeth to close the bite switch. After the bite switch is closed, the motor can be started so that the motor shaft drives the inner cam and the outer cam to rotate. The inner cam is embedded in the waist-shaped hole of the inner brush blade and can drive the inner brush blade to slide back and forth along the base. The outer cam is embedded in the waist-shaped hole of the outer brush blade and can drive the outer brush blade to slide back and forth along the base. The protrusions on the inner cam and the outer cam respectively cooperate with the inclined surfaces in the waist-shaped holes of the inner brush blade and the outer brush blade. The two protrusions separated by 180° alternately push the inclined surfaces opposite to them during the rotation process, so that the inner brush blade and the outer brush blade can slide back and forth along the motor shaft together with the base, thereby realizing orthogonal brushing that is superimposed in the front-to-back and up-and-down directions at the same time. Figure 8 As shown, the baffle can be held in the mouth or attached to the outside of the lips during brushing to prevent liquid from flowing out or splashing.

Claims

1. A U-shaped electric toothbrush, characterized in that: The brush assembly comprises a handle and a motor shaft extending out of the handle, an inner cam and an outer cam are fixedly mounted on the motor shaft, an inner brush is inserted at a position adjacent to the inner cam on the motor shaft, and an outer brush is inserted at a position adjacent to the outer cam, a base body inserted on the motor shaft is sandwiched between the inner and outer brushes, and bristles are further mounted on opposite surfaces of the inner and outer brushes, the inner cam is embedded in the inner brush and can drive the inner brush to slide back and forth along the base, the outer cam is embedded in the outer brush and can drive the outer brush to slide back and forth along the base, the inner cam and the outer cam are respectively matched with the inner brush and the outer brush, so that the inner brush and the outer brush can slide back and forth along the motor shaft together with the base; a lever matching the inner cam is arranged on the surface of the inner brush opposite to the inner cam A hole is provided in the hole, in which a vertically inclined inclined surface is provided, the inner cam is embedded in the hole of the inner brush piece and can drive the inner brush piece to slide back and forth up and down along the base, a protrusion is provided on the surface of the inner cam opposite to the inclined surface of the hole in which it is located, and a hole matching the outer cam is provided on the surface of the outer brush piece opposite to the outer cam, and a vertically inclined inclined surface is provided in the hole, the outer cam is embedded in the hole of the outer brush piece and can drive the outer brush piece to slide back and forth along the base, and a protrusion is provided on the surface of the outer cam opposite to the inclined surface of the hole in which it is located, the protrusions on the inner cam and the outer cam respectively match the inclined surfaces in the holes of the inner brush piece and the outer brush piece, so that the inner brush piece and the outer brush piece can slide back and forth along the rotating shaft of the motor together with the base; the hole on the inner brush piece and the hole on the outer brush piece are both waist-shaped holes.

2. The U-shaped electric toothbrush according to claim 1, characterized in that: A blocking piece is also inserted on the motor rotating shaft and is located on the outer side of the outer cam.

3. The U-shaped electric toothbrush according to claim 2, characterized in that: The cross sections of the inner brush sheet and the outer brush sheet are both U-shaped to match the shape of the teeth, and the width of the outer brush sheet is greater than that of the inner brush sheet.

4. The U-shaped electric toothbrush according to claim 3, characterized in that: An elastic part is arranged on the surface of the base body which matches with the outer brush sheet and the inner brush sheet.

5. The U-shaped electric toothbrush according to claim 4, characterized in that: The protrusions on the inner cam and the outer cam are 180 degrees apart in the vertical direction, and the inclined surfaces in the holes of the inner brush piece and the outer brush piece have the same inclination angle in the vertical direction.

6. A method of brushing teeth, using the U-shaped electric toothbrush according to claim 5, characterized in that: After the user puts the inner brush piece, outer brush piece and base of the U-shaped electric toothbrush into the mouth, the bite switch can be closed by biting the base with the teeth. After the bite switch is closed, the motor can be started, so that the motor shaft drives the inner cam and the outer cam to rotate, and the inner cam is embedded in the waist-shaped hole of the inner brush piece and can drive the inner brush piece to slide back and forth along the base. The outer cam is embedded in the waist-shaped hole of the outer brush piece and can drive the outer brush piece to slide back and forth along the base. The protrusions on the inner cam and the outer cam respectively cooperate with the inclined surfaces in the waist-shaped holes of the inner brush piece and the outer brush piece. The two protrusions 180° apart alternately push the inclined surfaces opposite to them during the rotation process, so that the inner brush piece and the outer brush piece can slide back and forth along the motor shaft together with the base, thereby realizing orthogonal brushing that is superimposed in the front and back and up and down directions at the same time.

Images