CN211610160U - Electric toothbrush - Google Patents

Abstract

The utility model relates to an electric toothbrush, the connecting rod of which connects a protecting cover and a brush handle, the brush handle is provided with an inner cavity, a motor, a battery and a circuit board are arranged in the inner cavity, the circuit board is connected with the motor in series, and the battery is connected with the circuit board in series to supply power for the motor; one end of the motor facing the brush head is connected with a rotating shaft, the rotating shaft is connected with one end of the motor and is positioned in the brush handle, and the other end of the rotating shaft penetrates through the inner cavity of the brush handle and is connected with the brush head; the protecting cover is connected with the connecting rod and is positioned at the upper part of the brush head; the brush head is provided with brush hair which is vertical to the horizontal direction of the rotating shaft. By adopting the utility model, the bristles can not generate grinding pressure when contacting with teeth, only generate rolling friction, can not damage gum, can easily enter gaps when cleaning the teeth gaps, and can clear away substances attached to the teeth gaps, thereby being beneficial to improving the service life of the bristles; meanwhile, the arc-shaped protecting cover makes people feel more comfortable; in addition, the forward and reverse control of the rotation of the brush hairs not only improves the cleaning efficiency, but also is suitable for various use habits of users.

Description

Electric toothbrush

Technical Field

The utility model relates to an electric toothbrush.

Background

The electric toothbrush sold in the market at present comprises a brush head, a brush head seat, a connecting rod and a brush handle, wherein the brush head is positioned on the brush head seat, the brush head seat is connected with the brush handle through the connecting rod, a micro motor is arranged in the brush head seat, a rotating shaft of the micro motor is connected with the brush head, a battery and a circuit board are arranged in an inner cavity of the brush handle, the circuit board is connected with the micro motor in series through an electric wire, and the battery supplies power for the micro motor. The electric toothbrush has the advantages that the rotating shaft is vertical to the connecting rod, so that the rotating direction of the toothbrush head is consistent with the horizontal direction of the connecting rod, and the bristles are opposite to teeth and are mutually ground and rubbed with the teeth when in use, so that firstly, the friction force is large, and the gums are easily damaged; secondly, substances in the slits between the teeth are difficult to remove; thirdly, the bristles are easy to damage, which affects the service life of the product.

Disclosure of Invention

The utility model aims to provide an electric toothbrush which can prevent gum from being damaged, can clean all parts of teeth and is comfortable to use aiming at the defects.

The utility model discloses the technical scheme who takes: an electric toothbrush comprises a brush head, a protecting cover, a connecting rod and a brush handle, wherein the connecting rod is connected with the protecting cover and the brush handle; one end of the motor facing the brush head is connected with a rotating shaft, the rotating shaft is connected with one end of the motor and is positioned in the brush handle, and the other end of the rotating shaft penetrates through the inner cavity of the brush handle and is connected with the brush head; the protecting cover is connected with the connecting rod and is positioned at the upper part of the brush head; the brush head is provided with brush hair which is vertical to the horizontal direction of the rotating shaft.

The electric toothbrush is characterized in that the protecting cover is arc-shaped.

The electric toothbrush is characterized in that the brush hair is arranged on the brush head in a circumferential shape.

The electric toothbrush is characterized in that the arc-shaped width of the protecting cover just covers the two ends of the circumferential bristles, namely the arc-shaped width is consistent with the added width of the bristles and the brush head.

The electric toothbrush is characterized by further comprising a sealing ring, wherein the sealing ring is arranged in the inner cavity of the toothbrush handle and sleeved on the rotating shaft.

The electric toothbrush is characterized by further comprising a rear cover, and the rear cover is arranged on the toothbrush handle.

The electric toothbrush is characterized by further comprising a starting switch, wherein the starting switch is arranged on the toothbrush handle and is connected with a circuit on the circuit board in series.

The electric toothbrush is characterized by further comprising a steering switch, wherein the steering switch is arranged on the toothbrush handle and is connected with a circuit of the circuit board in series.

The electric toothbrush is characterized in that the circuit board is provided with a motor forward rotation circuit and a motor reverse rotation circuit.

The electric toothbrush is characterized in that the connecting rod is tubular with a through hole.

The utility model is designed in such a way, because the bristles can not generate grinding pressure when contacting with teeth, only rolling surface friction can be generated, gum can not be damaged, the bristles can easily enter gaps when cleaning the gaps between the teeth, the substances attached to the gaps between the teeth can be removed, and the service life of the bristles can be prolonged; meanwhile, the arc-shaped protecting cover enables people to feel more comfortable; in addition, the rotation of the bristles is controlled in the forward and reverse directions, so that the cleaning efficiency is improved, and the brush is suitable for various use habits of users.

Drawings

Fig. 1 is a schematic sectional view of the present invention.

Fig. 2 is a schematic view of the brush head portion of fig. 1 according to the present invention in the direction of a.

The numbers in the figure indicate: brush hair 1, protecting cover 2, brush head 3, connecting rod 4, rotating shaft 5, sealing ring 6, steering switch 7, starting switch 8, motor 9, circuit board 10, brush holder 11, battery 12, back lid 13 and inner chamber 14.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1 and 2, the electric toothbrush comprises a brush head 3, a protective cover 2, a connecting rod 4, a brush holder 11, a rear cover 13, a sealing ring 6, a starting switch 8 and a steering switch 7, wherein the connecting rod 4 is connected with the protective cover 2 and the brush holder 11, the brush holder 11 is provided with an inner cavity 14, a motor 9, a battery 12 and a circuit board 10 are arranged in the inner cavity 14, the circuit board 10 is connected with the motor 9 in series (the series connection circuit diagram is not marked and belongs to the known public technology), and the battery 12 is connected with the circuit board 10 in series (the series connection circuit diagram is not marked and belongs to the known public technology) to supply; a rear cover 13 is provided on the rear of the handle 11 (obviously, it could also be provided on the surface or on the bottom); one end of the motor 9 close to the brush head 3 is connected with a rotating shaft 5, the rotating shaft 5 is connected with one end of the motor 9 and is positioned in the brush handle 11, and the other end of the rotating shaft 5 penetrates through an inner cavity 14 of the brush handle 11 to be connected with the brush head 3 and is positioned in a through hole of the connecting rod 4; the protecting cover 2 is connected with the connecting rod 4 and is positioned at the upper part of the brush head 3; the brush head 3 is provided with bristles 1, and the bristles 1 are vertical to the horizontal direction of the rotating shaft 5 (or the bristles 1 are consistent with the rotating direction of the rotating shaft 5); the sealing ring 6 is arranged in the inner cavity 14 of the brush holder 11, sleeved on the rotating shaft 5 and leaned against the top end of the inner cavity 14, and is used for preventing water from entering the brush holder 11; the starting switch 8 is arranged on the upper part of the brush handle 11 and is connected with the circuit on the circuit board 10 in series (the series circuit diagram is not marked, and belongs to the well-known public technology); the steering switch 7 is arranged on the upper part of the brush handle 11 and is connected with the circuit of the circuit board 10 in series (the series circuit diagram is not marked, and belongs to the common technology); the protecting cover 2 is arc-shaped, and the width of the arc-shaped cover just covers the two ends of the circumferential bristles 1, namely the width of the arc-shaped cover is consistent with the sum width of the bristles 1 and the brush head 2; the circuit board 10 is provided with a motor forward rotation circuit and a motor reverse rotation circuit, and the forward rotation circuit and the motor reverse rotation circuit can be designed by adopting a common known circuit.

When the toothbrush is used, the right hand is used for holding the brush handle 11, the brush head 3 firstly extends into the position, close to the outer part of the oral cavity, of the upper and lower teeth on the left side, the brush bristles 1 are opposite to the teeth, the starting switch 8 is pressed down, the battery 12 supplies power to the motor 9 through the circuit board 10, the upper rotating shaft 5 of the motor 9 rotates forwards, and the outer part of the teeth on the left side is cleaned; then, the starting switch 8 is released, the motor 9 stops rotating, the brush head 3 is extended into the position, close to the inner part of the oral cavity, of the upper and lower teeth on the left side, and the steering switch 7 is pressed down to enable the motor 9 to rotate reversely, so that the inner side of the left teeth is cleaned.

After the left side tooth is cleaned, release steering switch 7, motor 9 stall, stretch into the tooth that the right side is upper and lower earlier with brush head 3 and lean on outside department in the oral cavity, let brush hair 1 be to the tooth, press steering switch 7 and make pivot 5 reverse rotation on the motor 9, clean the right side tooth outside, then, release steering switch 7, motor 9 stall, stretch into brush head 3 and lean on inside department in the oral cavity to the tooth that the right side is upper and lower, press starting switch 8 once more, make pivot 5 forward rotation on the motor 9, clean right side tooth inboard.

Of course, the above usage methods are not limited to these, such as users who are used to brush teeth with left hand, but they are not listed here.

In the above, because the bristles 1 do not generate grinding pressure when contacting with teeth, only rolling surface friction is generated, and the gum is not damaged, when cleaning the teeth gap part, the bristles 1 are easy to enter the teeth gap because the teeth gap is linear, so as to clear away the substances attached to the teeth gap, and the service life of the bristles 1 is prolonged; meanwhile, the arc-shaped protecting cover 2 can shield the flesh in the face when in use, so that people can feel more comfortable; in addition, the forward and reverse control of the rotation of the brush bristles 1 not only improves the cleaning efficiency, but also is suitable for various user habits.

Claims (10)

1. An electric toothbrush comprises a brush head, a protecting cover, a connecting rod and a brush handle, wherein the connecting rod is connected with the protecting cover and the brush handle; one end of the motor facing the brush head is connected with a rotating shaft, the rotating shaft is connected with one end of the motor and is positioned in the brush handle, and the other end of the rotating shaft penetrates through the inner cavity of the brush handle and is connected with the brush head; the protecting cover is connected with the connecting rod and is positioned at the upper part of the brush head; the brush head is provided with brush hair which is vertical to the horizontal direction of the rotating shaft.

2. The powered toothbrush as defined in claim 1, wherein the cover is arcuate.

3. The powered toothbrush of claim 1, wherein the bristles are circumferentially disposed on the head.

4. An electric toothbrush according to claim 1, wherein the arc-shaped width of the cover covers exactly the two ends of the circumferential bristles, corresponding to the combined width of the bristles and the head.

5. The powered toothbrush as defined in claim 1, further comprising a sealing ring disposed within the interior of the handle and disposed about the shaft.

6. The powered toothbrush of claim 1, further comprising a rear cover, the rear cover being disposed on the handle.

7. The powered toothbrush of claim 1, further comprising a start switch disposed on the handle and connected in series with the circuit on the circuit board.

8. The powered toothbrush of claim 1, further comprising a diverter switch disposed on the handle and connected in series with the circuit of the circuit board.

9. The electric toothbrush of claim 1, wherein the circuit board has a motor forward rotation circuit and a motor reverse rotation circuit.

10. The powered toothbrush of claim 1, wherein the connecting rod is tubular with a through hole.

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