CN215688664U

CN215688664U - Electric toothbrush

Info

Publication number: CN215688664U
Application number: CN202121353836.1U
Authority: CN
Inventors: 雷德贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2022-02-01
Anticipated expiration: 2031-06-17

Abstract

The utility model discloses an electric toothbrush, which comprises a brush handle and a brush head, wherein a battery jar and a motor are arranged in the brush handle; a transmission shaft is arranged on the motor; the transmission shaft comprises a straight shaft and a crankshaft, and the straight shaft is connected with the crankshaft; the straight shaft extends from the motor to the brush head; the crankshaft is arranged in the brush head; a plurality of brushing units are arranged on the crankshaft; the plurality of brushing units are arranged side by side and can be rotatably arranged on a fixed shaft, and two ends of the fixed shaft are fixed on the brushing head; a through groove is formed in the bottom of the brushing unit, and the crankshaft is located in the through groove; when the crankshaft rotates, the bristle unit is driven to rotate in a reciprocating mode by taking the fixed shaft as a rotating shaft. When brushing teeth, the bristles are fixed to be a rotating shaft, the brush head is transversely placed on the surface of teeth, and the bristles move up and down, so that the action of cleaning gaps between the teeth is simulated during manual tooth brushing, the gaps between the teeth are effectively cleaned, and the problem that the existing electric toothbrush cannot well clean the gaps between the teeth is solved.

Description

Electric toothbrush

Technical Field

The utility model belongs to the technical field of toothbrushes, and particularly relates to an electric toothbrush.

Background

In recent years, people have an increased awareness of oral hygiene and particular attention has been paid to the health protection of teeth. Toothbrushes are important tools for cleaning teeth, and electric toothbrushes have better cleaning performance than ordinary toothbrushes, and are selected by more and more users.

In principle, electric toothbrushes have two main categories: rotation and vibration. The principle of the rotary toothbrush is simple, namely the motor drives the circular brush head to rotate, the friction effect is enhanced while the common tooth brushing action is carried out, the rotary toothbrush has high strength, the tooth surface is cleaned completely, the tooth gaps are relatively weak to clean, the abrasion to the teeth is large, and the rotary toothbrush is not recommended to be used for a long time.

The vibration type toothbrush is more complicated and higher in price. The electric driving vibration motor is arranged in the vibration type toothbrush, so that the brush head can generate high-frequency swing perpendicular to the brush handle direction, the brush head cannot directly act on gaps between teeth, the gaps between the teeth are cleaned, cleaning is not in place, and dental calculus is generated.

In conclusion, the existing electric toothbrushes have the problem that the gaps between teeth cannot be well cleaned.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric toothbrush, which solves the problem that the existing electric toothbrush cannot well clean gaps between teeth.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an electric toothbrush, which comprises a brush handle and a brush head, wherein a battery jar and a motor are arranged in the brush handle; a transmission shaft is arranged on the motor; the transmission shaft comprises a straight shaft and a crankshaft, and the straight shaft is connected with the crankshaft; the straight shaft extends from the motor to the brush head; the crankshaft is arranged in the brush head; a plurality of brushing units are arranged on the crankshaft; the plurality of brushing units are arranged side by side and can be rotatably arranged on a fixed shaft, and two ends of the fixed shaft are fixed on the brushing head; a through groove is formed in the bottom of the brushing unit, and the crankshaft is located in the through groove; when the crankshaft rotates, the bristle unit is driven to rotate in a reciprocating mode by taking the fixed shaft as a rotating shaft.

According to the technology, a crankshaft is arranged in a brush head, and a plurality of brush hair units are arranged on the crankshaft; the plurality of brushing units are arranged side by side and can be rotatably arranged on a fixed shaft, and two ends of the fixed shaft are fixed on the brushing head; a through groove is formed in the bottom of the brushing unit, and the crankshaft is located in the through groove; the crankshaft drives the bristle unit to rotate in a reciprocating mode by taking the fixed shaft as a rotating shaft during rotation, and when the toothbrush is used for brushing teeth, the bristles are fixed to the rotating shaft, the toothbrush head is transversely placed on the surface of teeth and moves up and down, so that the action of cleaning the slit between the teeth during manual tooth brushing is simulated, the slit between the teeth is effectively cleaned, and the problem that the existing electric toothbrush cannot well clean the slit between the teeth is solved.

In one possible design, the bristle unit comprises a bristle part and a mounting seat, the bristle part being mounted in the mounting seat, the mounting seat being provided with a through hole in which the fixed shaft penetrates.

In one possible design, the two sides of the mounting seat are inclined planes or arc-shaped and are positioned on the two sides of the crankshaft. Through setting up mount pad both sides limit and be inclined plane or arc for the installation reduces from the upper end to the lower extreme gradually, makes the brush hair unit when reciprocating along the fixed axle, has fine degree of cooperation between the chamber arm of edge and brush head, reduces the clearance that needs to rotate and reserve.

In one possible design, the opposite side of the brush head with respect to the bristles is provided with a number of ventilation holes. Consider because the brush hair unit is the activity setting, inside foam or food waste that brush teeth produced stayed the brush head easily, through setting up the bleeder vent for the inside cavity of brush head has fine gas permeability, and it is clean to directly wash the brush head to make things convenient for on the one hand, can dry the brush head fast on the one hand, avoids breeding the bacterium.

In one possible design, the crankshaft comprises a first crank throw, a first crankshaft journal and a second crank throw which are connected in sequence; the first crank throw and the second crank throw are positioned on the same plane, and the first crank throw and the second crank throw are positioned on two sides of the axis of the first crankshaft journal; the first crank throw and the second crank throw are provided with independent bristle units.

In one possible design, the crankshaft comprises a first crank throw, a first crankshaft journal, a second crank throw, a second crankshaft journal and a third crank throw which are connected in sequence; the first crank shaft journal and the second crank shaft journal are positioned on the same axis, the first crank throw, the second crank throw and the third crank throw are positioned on the same plane, the first crank throw and the second crank throw are positioned on two sides of the axis, and the first crank throw and the third crank throw are positioned on the same side of the axis; the first crank throw, the second crank throw and the third crank throw are respectively provided with independent bristle units.

Has the advantages that:

1. the utility model provides an electric toothbrush.A crankshaft is arranged in a toothbrush head, and a plurality of bristle units are arranged on the crankshaft; the plurality of brushing units are arranged side by side and can be rotatably arranged on a fixed shaft, and two ends of the fixed shaft are fixed on the brushing head; a through groove is formed in the bottom of the brushing unit, and the crankshaft is located in the through groove; the crankshaft drives the bristle unit to rotate in a reciprocating manner by taking the fixed shaft as a rotating shaft when rotating, the bristles are fixed as the rotating shaft when brushing teeth, the brush head is transversely placed on the surface of teeth, and the bristles move up and down, so that the action of cleaning the slit between the teeth when manually brushing teeth is simulated, the slit between the teeth is effectively cleaned, and the problem that the existing electric toothbrush cannot well clean the slit between the teeth is solved;

2. according to the electric toothbrush provided by the utility model, the two side edges of the mounting seat are inclined planes or arc-shaped, so that the mounting is gradually reduced from the upper end to the lower end, when the bristle unit rotates along the fixed shaft in a reciprocating manner, the edge and the cavity arm of the toothbrush head have good matching degree, and the reserved gap required to rotate is reduced;

3. according to the electric toothbrush provided by the utility model, the condition that foam or food residues generated by tooth brushing are easy to stay in the brush head because the bristle unit is movably arranged is considered, and the air holes are formed, so that a cavity in the brush head has good air permeability, the brush head can be conveniently and directly washed and cleaned, the brush head can be quickly dried, and bacteria breeding is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic top view of the internal structure of a head portion of a powered toothbrush provided by the present invention;

FIG. 2 is a front view of the internal structure of the head portion of the powered toothbrush provided by the present invention;

FIG. 3 is a front view showing an internal structure of a brush head of the electric toothbrush according to the present invention in which three brush units are installed;

FIG. 4 is a left side view schematically illustrating the structure of a bristle unit of the electric toothbrush according to the present invention

Fig. 5 is a front view schematically illustrating an internal structure of a brush head of the electric toothbrush according to the present invention when two bristle units are mounted.

The reference numbers in the figures are:

1-transmission shaft, 101-straight shaft, 102-crankshaft, 2-brush head, 3-brush unit, 301-brush part, 302-mounting seat, 303-through groove, 4-fixed shaft, 5-vent hole, 6-first crank throw, 7-first crankshaft journal, 8-second crank throw, 9-second crankshaft journal and 10-third crank throw.

Detailed Description

The utility model is further described with reference to the following figures and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the utility model. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein. It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments of the present invention.

As shown in fig. 1 to 3, the electric toothbrush provided by the first aspect of the present invention is an electric toothbrush, which includes a handle and a head 2, wherein a battery jar and a motor (not shown) are provided in the handle; a transmission shaft 1 is arranged on the motor; the transmission shaft 1 comprises a straight shaft 101 and a crankshaft 102, and the straight shaft 101 is connected with the crankshaft 102; the straight shaft 101 extends from the motor to the brush head 2; the crankshaft 102 is arranged in the brush head 2; a plurality of brush units 3 are arranged on the crankshaft 102; the plurality of brushing units 3 are arranged side by side, the plurality of brushing units 3 are rotatably arranged on a fixed shaft 4, and two ends of the fixed shaft 4 are fixed on the brush head 2; a through groove 303 is formed in the bottom of the brushing unit 3, and the crankshaft 102 is positioned in the through groove 303; when the crankshaft 102 rotates, the brush unit 3 is driven to rotate back and forth by using the fixed shaft 4 as a rotating shaft. As an example, as shown in fig. 5, the crankshaft 102 includes a first crank throw 6, a first crank journal 7 and a second crank throw 8 which are connected in sequence; the first crank throw 6 and the second crank throw 8 are positioned on the same plane, and the first crank throw 6 and the second crank throw 8 are positioned on two sides of a straight line where the journal of the crankshaft 102 is positioned; the first and

second bell cranks

6, 8 are provided with separate bristle units 3.

In a possible embodiment, as shown in fig. 4, the brush unit 3 comprises a brush part 301 and a mounting base 302, the brush part 301 is mounted in the mounting base 302, the mounting base 302 is provided with a through hole, and the fixing shaft 4 penetrates through the through hole.

In one possible embodiment, the two sides of the mounting seat 302 on the two sides of the crankshaft 102 are inclined planes or arc-shaped.

In a possible embodiment, the brush head 2 is provided with a number of ventilation holes 5 on the opposite side with respect to the bristles.

The electric toothbrush provided by the second aspect of the utility model comprises a brush handle and a brush head 2, wherein a battery groove and a motor are arranged in the brush handle; a transmission shaft 1 is arranged on the motor; the transmission shaft 1 comprises a straight shaft 101 and a crankshaft 102, and the straight shaft 101 is connected with the crankshaft 102; the straight shaft 101 extends from the motor to the brush head 2; the crankshaft 102 is arranged in the brush head 2; a plurality of brush units 3 are arranged on the crankshaft 102; the plurality of brushing units 3 are arranged side by side, the plurality of brushing units 3 are rotatably arranged on a fixed shaft 4, and two ends of the fixed shaft 4 are fixed on the brush head 2; a through groove 303 is formed in the bottom of the brushing unit 3, and the crankshaft 102 is positioned in the through groove 303; when the crankshaft 102 rotates, the brush unit 3 is driven to rotate back and forth by using the fixed shaft 4 as a rotating shaft. As an example, as shown in fig. 3, the crankshaft 102 includes a first crank throw 6, a first crank journal 7, a second crank throw 8, a second crank journal 9 and a third crank throw 10 which are connected in sequence; the first crankshaft journal 7 and the second crankshaft journal 9 are located on the same axis, the first crank throw 6, the second crank throw 8 and the third crank throw 10 are located on the same plane, the first crank throw 6 and the second crank throw 8 are located on two sides of the axis, and the first crank throw 6 and the third crank throw 10 are located on the same side of the axis; the first crank throw 6, the second crank throw 8 and the third crank throw 10 are respectively provided with independent bristle units 3.

The bristle unit 3 comprises a bristle part 301 and a mounting seat 302, the bristle part 301 is mounted in the mounting seat 302, the mounting seat 302 is provided with a through hole, and the fixing shaft 4 penetrates through the through hole. The two sides of the mounting base 302 are inclined planes or arc-shaped, so that the mounting is gradually reduced from the upper end to the lower end. The opposite side of the brush head 2 relative to the bristles is provided with a plurality of air vents 5.

In summary, the electric toothbrush provided by the utility model has the advantages that the crankshaft is arranged in the toothbrush head, and the crankshaft is provided with the plurality of bristle units; the plurality of brushing units are arranged side by side and can be rotatably arranged on a fixed shaft, and two ends of the fixed shaft are fixed on the brushing head; a through groove is formed in the bottom of the brushing unit, and the crankshaft is located in the through groove; the crankshaft drives the bristle unit to rotate in a reciprocating mode by taking the fixed shaft as a rotating shaft during rotation, and when the toothbrush is used for brushing teeth, the bristles are fixed to the rotating shaft, the toothbrush head is transversely placed on the surface of teeth and moves up and down, so that the action of cleaning the slit between the teeth during manual tooth brushing is simulated, the slit between the teeth is effectively cleaned, and the problem that the existing electric toothbrush cannot well clean the slit between the teeth is solved.

Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric toothbrush is characterized by comprising a brush handle and a brush head (2), wherein a battery jar and a motor are arranged in the brush handle; a transmission shaft (1) is arranged on the motor; the transmission shaft (1) comprises a straight shaft (101) and a crankshaft (102), and the straight shaft (101) is connected with the crankshaft (102); the straight shaft (101) extends from the motor to the brush head (2); the crankshaft (102) is arranged in the brush head (2); a plurality of brushing units (3) are arranged on the crankshaft (102); the brushing units (3) are arranged side by side, the brushing units (3) are rotatably sleeved on the fixed shaft (4), and two ends of the fixed shaft (4) are fixed on the brush head (2); a through groove (303) is formed in the bottom of the brushing unit (3), and the crankshaft (102) is located in the through groove (303); when the crankshaft (102) rotates, the brushing unit (3) is driven to rotate in a reciprocating manner by taking the fixed shaft (4) as a rotating shaft.

2. The electric toothbrush according to claim 1, characterized in that the bristle unit (3) comprises a bristle part (301) and a mounting seat (302), the bristle part (301) being mounted in the mounting seat (302), the mounting seat (302) being provided with a through hole in which the fixed shaft (4) penetrates.

3. The electric toothbrush according to claim 2, wherein the side edges of the mounting base (302) on both sides of the crankshaft (102) are beveled or curved.

4. An electric toothbrush according to claim 1, characterized in that the side of the brush head (2) remote from the bristles is provided with a number of ventilation holes (5).

5. The electric toothbrush according to claim 1, characterized in that the crankshaft (102) comprises a first bell crank (6), a first crankshaft journal (7) and a second bell crank (8) connected in sequence; the first crank throw (6) and the second crank throw (8) are positioned on the same plane, and the first crank throw (6) and the second crank throw (8) are positioned on two sides of the axis of the first crankshaft journal (7); the first crank throw (6) and the second crank throw (8) are provided with independent bristle units (3).

6. The electric toothbrush according to claim 1, characterized in that the crankshaft (102) comprises a first bell crank (6), a first crankshaft journal (7), a second bell crank (8), a second crankshaft journal (9) and a third bell crank (10) connected in sequence; the first crankshaft journal (7) and the second crankshaft journal (9) are located on the same axis, the first crank throw (6), the second crank throw (8) and the third crank throw (10) are located on the same plane, the first crank throw (6) and the second crank throw (8) are located on two sides of the axis, and the first crank throw (6) and the third crank throw (10) are located on the same side of the axis; the first crank throw (6), the second crank throw (8) and the third crank throw (10) are respectively provided with an independent bristle unit (3).