WO2019120185A1 - 一种电动牙刷 - Google Patents

一种电动牙刷 Download PDF

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Publication number
WO2019120185A1
WO2019120185A1 PCT/CN2018/121683 CN2018121683W WO2019120185A1 WO 2019120185 A1 WO2019120185 A1 WO 2019120185A1 CN 2018121683 W CN2018121683 W CN 2018121683W WO 2019120185 A1 WO2019120185 A1 WO 2019120185A1
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WO
WIPO (PCT)
Prior art keywords
toothbrush
plate
guide groove
annular
annular guide
Prior art date
Application number
PCT/CN2018/121683
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English (en)
French (fr)
Inventor
王新
Original Assignee
深圳极别科技有限公司
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Filing date
Publication date
Application filed by 深圳极别科技有限公司 filed Critical 深圳极别科技有限公司
Publication of WO2019120185A1 publication Critical patent/WO2019120185A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/3409—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body

Definitions

  • the utility model belongs to the technical field of toothbrushes, in particular to an electric toothbrush.
  • Electric toothbrush is a new product that has appeared in recent years. It has set off a revolution in the field of oral health in foreign countries. Although the application of electric toothbrush in China is not popular, it has been predicted that it will become an important member of public health products. According to the survey, electric toothbrushes are more scientific and effective than ordinary toothbrushes, which can completely remove plaque, reduce gingivitis and bleeding gums. It is also a popular commodity in many countries in Europe and America.
  • the electric toothbrush rotates quickly, causing the brush head to generate high-frequency vibration.
  • the toothpaste is decomposed into fine foam in an instant, and the teeth are deeply cleaned.
  • the vibration of the bristles can promote the blood circulation of the mouth and have an unexpected massage effect on the gum tissue.
  • the electric toothbrushes on the market basically rely on mechanical vibration to clean the teeth, and the structural shape of the electric toothbrush is mainly the same as that of the conventional toothbrush structure.
  • the brush head Since the brush head has a short service life and often needs to be replaced, the brush head and the handle are generally designed to be detachable in order to replace the brush head.
  • the power supply and the electric control component are disposed in the handle, on the handle
  • the output shaft is mechanically connected with the brush head to drive the brush head to vibrate. Since the electric toothbrush generates vibration during use, the brush head and the handle are also easy to disassemble, so the waterproof seal between the brush head and the handle is sealed. Processing has always been a technical difficulty in the art, whereby no circuit connection is usually provided between the brush head and the handle.
  • the utility model provides an electric toothbrush, and the structure design of the electric toothbrush is adapted to the shape of the human body, and the hands can be released for brushing.
  • An electric toothbrush comprising: a grip portion internally provided with driving devices and a control panel connected to each other; a brush head connected to the grip portion, comprising a U-shaped outer casing and a toothbrush plate movably connected in the U-shaped outer casing, the toothbrush The surface of the plate is provided with a toothbrush hair; wherein the driving device is connected to the handle portion through a transmission device, and the driving device drives the toothbrush plate to swing back and forth in the horizontal direction in the U-shaped outer casing of the brush head through the transmission device, so as to make the toothbrush plate The toothbrush hair completes the brushing action.
  • the driving device comprises a driving shaft and a driving gear, and the driving device drives the driving gear to rotate by the driving shaft, and the driving gear of the driving device is connected with the transmission device to drive the transmission device, and the transmission device further drives the toothbrush plate of the brush head to complete the brushing operation. action.
  • the transmission device comprises an annular guide groove, and a movable plate is embedded in the annular guide groove, and the movable plate can be vertically moved inside the annular guide groove relative to the annular guide groove, and an annular track hole is arranged in the middle of the movable plate, and the inside of the circular track hole is arranged
  • a transmission gear is disposed, and two ends of the annular track hole are provided with a reversing curved guide plate, and the reversing curved guide plate can guide the driving gear to reversing from one side of the annular track hole to the other side, and the driving gear passes through the circular track hole
  • the annular guide groove is fixedly connected with the toothbrush plate, and the driving gear drives the movable plate to move when the driving gear rotates, and the movable plate drives the annular guide groove and the toothbrush plate to swing back and forth in the horizontal direction.
  • the annular guide groove has a rectangular shape, a circular shape or an elliptical shape, and the width of the movable plate in the horizontal direction is the same as the horizontal width of the slot of the annular guide groove, and the height of the vertical direction of the movable plate is smaller than the vertical direction of the slot of the annular guide groove. the height of.
  • annular channel is disposed on the inner ring edge of the annular guide groove, and the movable plate is embedded in the annular channel of the annular guide groove.
  • the driving device is meshed with the adapter shaft, the adapter shaft meshes with the driving gear, and the driving device is connected to the driving gear through the adapter shaft.
  • control board is provided with a power switch, a speed control button and a timing control module, the control board can control the switch and the running speed of the speed regulating motor, and the timing control module can control the set time of the speed regulating motor.
  • the toothbrush plate is made of a silicone material, and includes a front outer toothbrush plate and a side outer toothbrush plate, and an inner tooth toothbrush plate, the front outer tooth toothbrush plate and the side outer tooth toothbrush plate constitute a U-shaped tooth-oriented tooth, the inner tooth toothbrush
  • the board is also U-shaped.
  • front external toothbrush plate, the side external toothbrush plate and the inner toothbrush plate are fixedly connected, and the front external toothbrush plate, the side external toothbrush plate and the inner toothbrush plate are integrally formed or have a detachable connection structure.
  • the transmission device and the front outer toothbrush plate are integrally formed, and the two ends of the U-shaped outer casing of the brush head are provided with a nip portion for the user to bite the occlusion portion for brushing.
  • the electric toothbrush of the utility model has reasonable structural design, the bristles of the toothbrush are adapted to the shape of the human body, the hands can be liberated when brushing the teeth, and the transmission structure design is simple and ingenious, and the brush head can be driven to swing back and forth in the horizontal direction to drive around the teeth.
  • the toothbrush hair is brushed back and forth, which has the advantage of being more suitable for the crowd.
  • Figure 1 is a schematic structural view of an electric toothbrush of the present invention
  • Figure 2 is a cross-sectional view of the electric toothbrush of the present invention.
  • FIG. 3 is a schematic exploded view of the electric toothbrush of the present invention.
  • Figure 4 is a schematic structural view of the electric toothbrush of the present invention.
  • 5-6 are schematic structural views of a transmission device in the electric toothbrush of the present invention.
  • the electric toothbrush of the present invention includes a grip portion 100 and a brush head 200.
  • One end of the grip portion 100 is connected to one end of the brush head 200, and a driving device 6 is disposed in the grip portion 100.
  • the driving device 6 can drive the brush head 200 to move, and the brush head 200 can complete the brushing action during the movement.
  • the handle portion 100 includes a housing 1 and a driving device 6 disposed inside the housing 1.
  • the driving device 6 can be a speed regulating motor, and the driving device 6 is connected to the control board 5.
  • the control board 5 is provided with a power switch, a speed control button 19, and The indicator light 3, the control board 5 can control the switch and the running speed of the speed regulating motor.
  • the control board 5 further includes a timing control module, and the timing control module can control the time set by the speed regulating motor.
  • the driving device 6 can be powered by a power source 2 installed in the casing.
  • the power source 2 is connected to the speed regulating motor through the control board 5.
  • the power source 2 is a detachable power source or a fixed power source, and the charging interface 4 is disposed on the casing to charge the power source 2.
  • a wireless charging and receiving coil 27 can be disposed on the power source 2 to provide support for charging the power source 2.
  • the outer casing of the grip portion 100 includes a first half shell and a second half shell, and the first half shell and the second half shell are preferably symmetrical structures, and the first half shell and the second half shell are fastened by The screws are fixed to constitute the outer casing of the grip portion 100, and the first half shell and the second half shell are joined to each other with an annular waterproof ring 25.
  • One end of the grip portion 100 is coupled to the brush head 200, and the end portion of the grip portion 100 connected to the brush head portion 200 is a connecting end of the grip portion 100, and the drive shaft of the speed regulating motor extends from the connecting end of the grip portion 100.
  • the drive shaft 8 is connected to the end of the drive shaft, and the speed control motor drive shaft extending from the connection end of the handle portion 100 is connected to the brush head 200 through the drive gear 8, that is, the speed control motor drive shaft is connected through the end portion.
  • the drive gear 8 is coupled to the brush head 200 to drive the brush head 200 to move to complete the brushing action.
  • the connecting end of the grip portion 100 is provided with a rotating fixing sleeve 23 and a rotating connecting sleeve 24, and the driving shaft of the speed regulating motor protrudes from the rotating fixing sleeve 23 and the rotating connecting sleeve 24, and is connected to the brush head 200.
  • the speed regulating motor is meshed with the adapter shaft 7
  • the adapter shaft 7 is meshed with the driving gear 8
  • the output shaft of the speed regulating motor is connected to the driving gear 8 via the adapter shaft 7.
  • the adapter shaft 7 can be sleeved with a spring 26.
  • the brush head 200 includes a U-shaped outer casing 22.
  • the inner side of the U-shaped outer casing 22 is movably connected with a toothbrush plate.
  • the surface of the toothbrush plate is provided with a toothbrush 14 .
  • the drive shaft of the speed regulating motor is connected to the toothbrush plate through a transmission device, and the speed regulating motor passes through The transmission drives the toothbrush plate to reciprocate within the U-shaped outer casing 22 to complete the brushing action.
  • the transmission device includes an annular guide groove 12, which may have a rectangular shape, a circular shape or an elliptical shape.
  • the annular guide groove 12 is internally embedded with a movable plate 9, such as an inner ring of the annular guide groove 12.
  • An annular channel is provided on the side, and the movable plate 9 is embedded in the annular channel of the annular guide groove 12.
  • the middle portion of the movable plate 9 is provided with an annular track hole 10, the annular track hole 10 may be an elliptical track hole, and a transmission gear is disposed in the annular track hole 10, and a reversing curved guide plate 11 is disposed at both ends of the annular track hole 10, and the reversing arc is provided.
  • the guide plate 11 guides the drive gear 8 to perform a reversing movement at the end of the annular track hole 10.
  • the drive gear 8 passes through the annular track hole 10 and meshes with the transmission gear of the annular track hole 10. It should be noted that the drive gear 8 remains rotated in situ, and the drive gear 8 acts in a relative motion with the drive gear to cause relative movement of the transmission.
  • the movable panel 9 when the movable panel 9 is located at the center of the annular guide 12, the movable panel 9 and the annular guide 12 are of a symmetrical structure, and the drive shaft is rotated near the centerline position of the annular guide 12.
  • the drive gear 8 on the drive shaft meshes with the drive gear of the transmission, thereby driving the movable plate 9 to move within the annular guide 12.
  • the commutating curved guide 11 guides the drive gear 8 of the drive shaft to the other side of the annular track hole 10
  • the reverse curved guide 11 provided at the other end guides the gear of the drive shaft to move back to the initial side of the annular track hole 10. motion.
  • the width of the movable plate 9 in the horizontal direction is preferably the same as the width of the horizontal direction of the slot of the annular guide groove 12.
  • the height of the movable panel 9 in the vertical direction is smaller than the height of the vertical direction of the slot of the annular guide groove 12. This dimensional relationship ensures that the movable panel 9 only drives the annular guide 12 for horizontal reciprocation.
  • the driving gear 8 rotates in the annular track hole 10 provided on the movable plate 9, and drives the movable plate 9 to perform a circular motion of the vertical surface in the annular guide groove 12, that is, the movable plate 9 is driven by the gear, along the ring
  • the inner notch of the guide groove 12 is vertically moved to the left and right, and the width of the movable plate 9 in the horizontal direction is the same as the horizontal width of the annular guide groove 12.
  • the height of the movable plate 9 in the vertical direction is smaller than the vertical direction of the annular guide groove 12.
  • the annular guide groove 12 is fixedly coupled to the toothbrush plate, so that the drive shaft moves through the drive movable plate 9 to synchronously drive the annular guide groove 12 and the toothbrush plate to reciprocate in the horizontal direction, thereby completing the brushing action.
  • the toothbrush board includes a front external toothbrush plate 13 and a side external toothbrush plate 15 and an inner toothbrush plate 17, and the front outer toothbrush plate 13 and the side outer toothbrush plate 15 form a U-shape of the teeth, and the inner toothbrush plate 17 is also The U-shaped, front external toothbrush plate 13, the lateral external toothbrush plate 15, and the inner toothbrush plate 17 are fixedly connected to each other, for example, by a silicone connecting piece 18, or a front external toothbrush plate 13, a lateral external toothbrush plate 15, and an inner side.
  • the toothbrush plate 17 is an integrally formed structure, so that when the drive shaft drives the transmission, the transmission drives the front outer toothbrush plate 13, the side outer toothbrush plate 15, and the inner toothbrush plate 17 to perform horizontal reciprocation simultaneously. Brushing action.
  • the transmission device and the front outer toothbrush plate 13 are integrally formed, or the transmission device is integrally formed with the front outer toothbrush plate 13, the side outer toothbrush plate 15, and the inner toothbrush plate 17.
  • the transmission, the front outer toothbrush plate 13 and the side outer toothbrush plate 15 and the inner toothbrush plate 17 may also be detachable connection structures to facilitate replacement of components.
  • the U-shaped outer casing 22, the front outer toothbrush plate 13 and the side outer toothbrush plate 15 and the inner toothbrush plate 17 can be made of a non-toxic and harmless silicone material to ensure consumer safety.
  • the occlusal portion 20 is provided at both ends of the U-shaped outer casing 22 of the brush head 200. When the toothbrush is brushed using the electric toothbrush of the present invention, the occlusal portion 20 can be bitten by the internal teeth to perform brushing.
  • the toothbrush plate having the bristles 14 is fixedly coupled to the silicone holder 21, and the silicone holder 21 is disposed inside the U-shaped outer casing 22, or the bristles 14 can be directly implanted on the silicone holder 21 to eliminate the setting of the toothbrush plate.
  • the structural shape of the silicone support 21 matches the shape of the human oral cavity.
  • the silicone support 21 includes an outer curved edge and an inner curved edge.
  • the front external toothbrush plate 13 and the lateral external toothbrush plate 15 are fixed on the outer curved edge of the silicone support 21.
  • the inner toothbrush plate 17 is fixed on the inner curved edge of the silicone holder 21, so that when the brush head 200 having the silicone holder 21 is inserted into the cavity, the front outer toothbrush plate 13 and the side outer toothbrush plate 15 are placed.
  • the bristles 14 surround the outer tooth surface, and the bristles 14 on the inner toothbrush plate 17 surround the inner tooth surface.
  • the silicone holder 21 can be detachably connected to the U-shaped connection bracket 16 through the fixing bracket 28, the upper row of teeth 29, and the upper row of tooth fixing sleeves 30 to facilitate replacement of components.
  • the toothbrush plate disposed on the silicone holder 21 can be movably coupled to the U-shaped housing 22 via the U-shaped connection bracket 16, and the U-shaped housing is provided on the inner side of the U-shaped housing 22 to support the shape of the U-shaped housing 22.
  • the electric toothbrush of the present invention is used as follows.
  • the toothbrush is applied to the toothbrush 14 of the electric toothbrush, the brush head 200 of the electric toothbrush is placed in the user's mouth, and the user's teeth bite the bite piece of the brush head.
  • the front external toothbrush plate 13 and the side external toothbrush plate 15 and the bristles 14 on the inner toothbrush plate 17 surround the inner and outer sides of the entire tooth of the user.
  • the speed regulating motor starts to start, the speed regulating motor drives the driving gear 8 to rotate, the driving gear 8 moves along the circular track hole 10 of the transmission device, and the driving gear 8 passes through the transmission gear on the circular track hole 10.
  • the movable movable plate 9 is reciprocated up and down and left and right in the annular guide groove 12, and the annular guide groove 12 is fixedly connected with the front external toothbrush plate 13, and the front external toothbrush plate 13 is fixed to the side external toothbrush plate 15 and the inner toothbrush plate 17 Connected, so that the annular guide groove 12 synchronously drives all the toothbrush plates to swing back and forth in the horizontal direction.
  • the bristles 14 on the toothbrush plate move horizontally back and forth for brushing.
  • a timing module is disposed in the control panel 5, and the timing of the control panel 5 is set to set a predetermined brushing time, such as 3 minutes, and the automatic stopping after the brushing is more convenient.
  • the speed control button the speed value of the speed control motor can be selected, which is convenient for the user to adjust the speed according to his own habits.

Abstract

一种电动牙刷，包括：握柄部(100)，内部设置有彼此相连的驱动装置(6)和控制板(5)；刷头部(200)，与握柄部(100)相连，包括U形外壳(22)和活动连接在U形外壳(22)内的牙刷板(13、15、17)，牙刷板(13、15、17)的表面设置有牙刷毛(14)；其中，驱动装置(6)通过传动装置与握柄部(100)相连，驱动装置(6)通过传动装置带动牙刷板(13、15、17)在刷头部(200)的U形外壳(22)内沿水平方向来回摆动，以使牙刷板(13、15、17)上的牙刷毛(14)完成刷牙动作。电动牙刷具有结构设计合理，牙刷的牙刷毛(14)与人体口型相适配，刷牙时可以解放双手，传动结构设计简单巧妙，可驱动刷头部(200)沿水平方向来回摆动，带动包围在牙齿四周的牙刷毛(14)来回进行刷牙，具有适用人群更广的优点。

Description

一种电动牙刷 技术领域
本实用新型属于牙刷技术领域，尤其涉及一种电动牙刷。
背景技术
电动牙刷是近几年出现的新产品，在国外已掀起了口腔保健领域的革命，虽然电动牙刷在我国的应用尚不普及，但已有人预测，它将成为大众保健品中的重要一员。调查显示，电动牙刷与普通牙刷相比，更为科学有效，可以更彻底清除牙菌斑、减少牙龈炎和牙龈出血，也是目前欧美许多国家普遍流行的日用品。
电动牙刷快速旋转，使刷头产生高频振动，瞬间将牙膏分解成细微泡沫，深入清洁牙缝，刷毛的颤动能促进口腔的血液循环，对牙龈组织有意想不到的按摩效果。
目前市场上的电动牙刷基本上都是依靠机械振动的方式进行牙齿清洁，且电动牙刷的结构外形主要还是与传统的牙刷结构外形相同。由于刷头的使用寿命较短，经常需要更换，因此刷头与刷柄普遍设计成可拆卸式，以便对刷头进行更换，通常电源及电控组件均设置在刷柄内，刷柄上的输出轴与刷头机械连接，以驱动刷头振动，由于电动牙刷在使用过程中会产生振动，另外刷头与刷柄之间还要便于拆装，因此刷头与刷柄之间的防水密封处理一直是本领域的技术难点，由此，刷头与刷柄之间通常不会设置电路连接。
然而，现有的电动牙刷结构和普通牙刷结构外形没有太大区别，使用者需要用手握住刷柄进行刷牙，不能解放双手，特别是对于行动不便的人更不实用。
实用新型内容
为解决上述现有技术中的问题，本实用新型提供了一种电动牙刷，该电动牙刷结构设计与人体口型相适配，可以解放双手来进行刷牙。
为实现上述目的，本实用新型的电动牙刷的具体技术方案如下：
一种电动牙刷，包括：握柄部，内部设置有彼此相连的驱动装置和控制板；刷头部，与握柄部相连，包括U形外壳和活动连接在U形外壳内的牙刷板，牙刷板的表面设置有牙刷毛；其中，驱动装置通过传动装置与握柄部相连，驱动装置通过传动装置带动牙刷板在刷头部的U形外壳内沿水平方向来回摆动，以使牙刷板上的牙刷毛完成刷牙动作。
进一步，驱动装置包括驱动轴和驱动齿轮，驱动装置通过驱动轴带动驱动齿轮转动，驱动装置的驱动齿轮与传动装置相连以带动传动装置运动，传动装置进而带动刷头部的牙刷板运动以完成刷牙动作。
进一步，传动装置包括环形导槽，环形导槽内部嵌设有活动板，活动板可在环形导槽内部相对于环形导槽竖向运动，活动板的中部设置有环形轨道孔，环形轨道孔内部设置有传动齿轮，环形轨道孔的两端设置有换向弧形导板，换向弧形导板可引导驱动齿轮从环形轨道孔的一侧换向运动到另一侧，驱动齿轮穿过环形轨道孔并与环形轨道孔的传动齿轮啮合，环形导槽与牙刷板固定连接，驱动齿轮旋转时通过啮合的传动齿轮驱动活动板运动，活动板带动环形导槽和牙刷板沿水平方向来回摆动。
进一步，环形导槽呈长方形、圆形或椭圆形，活动板水平方向的宽度与环形导槽的槽孔水平方向的宽度相同，活动板竖直方向的高度小于环形导槽的槽孔竖直方向的高度。
进一步，环形导槽的内环边上设置有环形槽道，活动板嵌设在环形导槽的环形槽道内。
进一步，驱动装置与转接轴相啮合，转接轴与驱动齿轮相啮合，驱动装置通过转接轴与驱动齿轮相连。
进一步，控制板上设置有电源开关、调速按钮及定时控制模块，控制板可控制调速电机的开关及运行速度，定时控制模块可控制调速电机运行设定的时间。
进一步，牙刷板由硅胶材料制成，并且包括前外齿牙刷板和侧外齿牙刷板以及内侧齿牙刷板，前外齿牙刷板和侧外齿牙刷板构成牙齿走向的U形，内侧齿牙刷板也呈U形。
进一步，前外齿牙刷板、侧外齿牙刷板以及内侧齿牙刷板固定相连，前外齿牙刷板、侧外齿牙刷板以及内侧齿牙刷板为一体成型结构或者为可拆卸连接结构。
进一步，传动装置与前外齿牙刷板为一体成型结构，刷头部的U形外壳的两端设置有咬合部以方便用户咬住咬合部进行刷牙。
本实用新型的电动牙刷具有结构设计合理，牙刷的刷毛与人体口型相适配，刷牙时可以解放双手，传动结构设计简单巧妙，可驱动刷头部沿水平方向来回摆动，带动包围在牙齿四周的牙刷毛来回进行刷牙，具有适用人群更广的优点。
附图说明
图1为本实用新型的电动牙刷的结构示意图；
图2为本实用新型的电动牙刷的剖面图；
图3为本实用新型的电动牙刷的分解结构示意图；
图4为本实用新型的电动牙刷的结构示意图；
图5-6为本实用新型的电动牙刷中传动装置的结构示意图。
具体实施方式
为了更好地了解本实用新型的目的、结构及功能，下面结合附图，对本实用新型的电动牙刷做进一步详细的描述。
如图1-4所示，本实用新型的电动牙刷包括握柄部100和刷头部200，握柄部100的一端与刷头部200的一端相连，握柄部100中设置有驱动装置6，驱动装置6可驱动刷头部200运动，刷头部200在运动过程中，可完成刷牙动作。
握柄部100包括外壳1和设置在外壳1内部的驱动装置6，驱动装置6可以是调速电机，驱动装置6与控制板5相连，控制板5上设置有电源开关、调速按钮19及指示灯3，控制板5可控制调速电机的开关及运行速度。控制板5上还包括定时控制模块，定时控制模块可控制调速电机运行设定的时间。驱动装置6可由安装在外壳内的电源2供电，电源2通过控制板5与调速电机相连，电源2为可拆卸电源或固定式电源，外壳上设置有充电接口4，从而为电源2充电。电源2上可设置无线充接收线圈27，从而为电源2充电提供支撑。
握柄部100的外壳包括第一半壳体和第二半壳体，第一半壳体和第二半壳体优选为对称结构，第一半壳体和第二半壳体扣合后可由螺钉固定，从而构成握柄部100的外壳，第一半壳体和第二半壳体接合的部位设置有环形防水圈25。
握柄部100的一端与刷头部200连接，握柄部100与刷头部200连接的端部为握柄部100的连接端，调速电机的驱动轴从握柄部100的连接端伸出，驱动轴的端部连接有驱动齿轮8，从握柄部100的连接端伸出的调速电机驱动轴通过驱动齿轮8与刷头部200相连，即调速电机驱动轴通过端部连接的驱动齿轮8与刷头部200连接，从而驱动刷头部200运动完成刷牙动作。优选地，握柄部100的连接端设置有旋转固定套23和旋转连接套24，调速电机的驱动轴从旋转固定套23和旋转连接套24中伸出，并且与刷头部200相连。
优选地，调速电机与转接轴7相啮合，转接轴7与驱动齿轮8相啮合，调速电机的输出轴通过转接轴7与驱动齿轮8相连。转接轴7上可套接弹簧26。
刷头部200包括U形外壳22，U形外壳22的内侧活动连接有牙刷板，牙刷板的表面设置有牙刷毛14，调速电机的驱动轴通过传动装置与牙刷板相连，调速电机通过传动装置驱动牙刷板在U形外壳22内往复运动，从而完成刷牙动作。
如图5-6所示，传动装置包括环形导槽12，环形导槽12可以呈长方形、圆形或椭圆形，环形导槽12内部嵌设有活动板9，例如环形导槽12的内环 边上设置有环形槽道，活动板9嵌设在环形导槽12的环形槽道内。活动板9的中部设置有环形轨道孔10，环形轨道孔10可以是椭圆形轨道孔、环形轨道孔10内设置传动齿轮，环形轨道孔10两端设置有换向弧形导板11，换向弧形导板11可引导驱动齿轮8在环形轨道孔10的端部进行换向运动。驱动齿轮8穿过环形轨道孔10，并与环形轨道孔10的传动齿轮啮合。应注意的是，驱动齿轮8保持原地旋转，驱动齿轮8通过与传动齿轮啮合的相互力作用，使传动装置发生相对运动。
优选地，当活动板9位于环形导槽12的中心位置时，活动板9和环形导槽12为对称结构，驱动轴位于环形导槽12的中线位置附近转动。
由此，在驱动轴上的驱动齿轮8保持原位置旋转时，驱动轴上的驱动齿轮8与传动装置的传动齿轮啮合，从而驱动活动板9在环形导槽12内移动。当驱动齿轮8沿环形轨道孔10的一侧运动到环形轨道孔10该侧的端部位置时，换向弧形导板11引导驱动轴的驱动齿轮8移动到环形轨道孔10的另一侧，当驱动齿轮8沿环形轨道孔10的该另一侧运动到环形轨道孔10的另一端时，另一端设置的换向弧形导板11引导驱动轴的齿轮移动回到环形轨道孔10的初始侧运动。
因注意的是，为确保环形导槽12以及与环形导槽12固定连接的牙刷板仅做水平往复运动，活动板9水平方向的宽度优选与环形导槽12的槽孔水平方向的宽度相同，而活动板9竖直方向的高度小于环形导槽12的槽孔竖直方向的高度。这种尺寸关系可确保活动板9仅带动环形导槽12做水平往复运动。
由此，驱动齿轮8在活动板9上设置的环形轨道孔10中转动，驱动活动板9在环形导槽12内做竖直面的环线运动，即活动板9在齿轮的驱动下，沿环形导槽12的内槽口做竖直面的上下左右画圈运动，活动板9水平方向的宽度与环形导槽12的水平宽度一致，活动板9竖直方向的高度小于环形导槽12的竖向高度，从而在活动板9的上下左右画圈运动过程中，驱动环形导槽12在水平面内来回往复运动，也即左右水平摆动。环形导槽12与牙刷板固定连接，从而驱动轴通过驱动活动板9运动从而同步带动环形导槽12和牙刷板在水平方向上往复运动，从而完成刷牙动作。
牙刷板包括前外齿牙刷板13和侧外齿牙刷板15以及内侧齿牙刷板17， 前外齿牙刷板13和侧外齿牙刷板15构成牙齿走向的U形，内侧齿牙刷板17也呈U形，前外齿牙刷板13、侧外齿牙刷板15以及内侧齿牙刷板17彼此固定相连，例如通过硅胶连接片18相连，或前外齿牙刷板13、侧外齿牙刷板15以及内侧齿牙刷板17为一体成型结构，从而当驱动轴驱动传动装置运动时，传动装置带动前外齿牙刷板13、侧外齿牙刷板15以及内侧齿牙刷板17同步做水平方向的往复运动，进行刷牙动作。
优选地，传动装置与前外齿牙刷板13为一体成型结构，或者传动装置与前外齿牙刷板13、侧外齿牙刷板15、内侧齿牙刷板17为一体成型结构。此外，传动装置、前外齿牙刷板13和侧外齿牙刷板15以及内侧齿牙刷板17也可为可拆卸连接结构，以方便更换零部件。
U形外壳22，前外齿牙刷板13和侧外齿牙刷板15以及内侧齿牙刷板17可采用无毒无害的硅胶材料制成，以确保消费者使用安全。刷头部200的U形外壳22的两端设置有咬合部20，使用本实用新型的电动牙刷进行刷牙时，可用内部牙齿咬住咬合部20进行刷牙。
进一步，具有牙刷毛14的牙刷板与硅胶支架21固定连接，硅胶支架21设置在U形外壳22的内侧，或者也可将牙刷毛14直接植入硅胶支架21上，取消牙刷板的设置。硅胶支架21的结构外形与人体口腔外形匹配，硅胶支架21包括外侧弧形边和内侧弧形边，前外齿牙刷板13和侧外齿牙刷板15固定在硅胶支架21的外侧弧形边上，内侧齿牙刷板17固定在硅胶支架21的内侧弧形边上，从而再将具有硅胶支架21的刷头部200塞入口腔中时，前外齿牙刷板13和侧外齿牙刷板15上的牙刷毛14包围外侧齿表面，内侧齿牙刷板17上的牙刷毛14包围内侧齿表面。
进一步，硅胶支架21可通过固定支架28、上排齿29、上排齿固定套30可拆卸地与U型连接支架16连接，以方便更换零部件。
设置在硅胶支架21上的牙刷板可通过U型连接支架16与U形外壳22活动连接，U形外壳22的内侧设置有U型支架以支撑U形外壳22的形状。
本实用新型的电动牙刷使用过程如下，在电动牙刷的牙刷毛14上涂上牙膏，将电动牙刷的刷头部200放入用户口腔，使用者的牙齿咬住刷头部的咬合片，此时前外齿牙刷板13和侧外齿牙刷板15以及内侧齿牙刷板17上的牙 刷毛14包围用户的整个牙齿的内侧面和外侧面。按下握柄部100电源开关，调速电机开始启动，调速电机带动驱动齿轮8转动，驱动齿轮8沿着传动装置的环形轨道孔10运动，驱动齿轮8通过环形轨道孔10上的传动齿轮带动活动板9在环形导槽12内做上下左右往复运动，环形导槽12与前外齿牙刷板13固定连接，前外齿牙刷板13与侧外齿牙刷板15以及内侧齿牙刷板17固定相连，从而实现环形导槽12同步带动所有牙刷板沿水平方向来回摆动运动。这样，牙刷板上的牙刷毛14水平向来回运动进行刷牙。
由此，使用本实用新型的电动牙刷刷牙时，使用者不需要用手握住电动牙刷的握柄部100就能完成刷牙动作，解放了双手。控制板5内设置有定时模块，通过设置控制板5的定时功能，从而设置规定的刷牙时间，如3分钟，刷完后自动停止，更加方便。此外，通过选择调速按钮可选定调速电机的速度值，方便使用者根据自己的习惯，调整速度。
可以理解，本实用新型是通过一些实施例进行描述的，本领域技术人员知悉的，在不脱离本实用新型的精神和范围的情况下，可以对这些特征和实施例进行各种改变或等效替换。另外，在本实用新型的教导下，可以对这些特征和实施例进行修改以适应具体的情况及材料而不会脱离本实用新型的精神和范围。因此，本实用新型不受此处所公开的具体实施例的限制，所有落入本申请的权利要求范围内的实施例都属于本实用新型所保护的范围内。

Claims (10)

  1. 一种电动牙刷，其特征在于，包括：
    握柄部，内部设置有彼此相连的驱动装置和控制板；
    刷头部，与握柄部相连，包括U形外壳和活动连接在U形外壳内的牙刷板，牙刷板的表面设置有牙刷毛；
    其中，驱动装置通过传动装置与握柄部相连，驱动装置通过传动装置带动牙刷板在刷头部的U形外壳内沿水平方向来回摆动，以使牙刷板上的牙刷毛完成刷牙动作。
  2. 根据权利要求1所述的电动牙刷，其特征在于，驱动装置包括驱动轴和驱动齿轮，驱动装置通过驱动轴带动驱动齿轮转动，驱动装置的驱动齿轮与传动装置相连以带动传动装置运动，传动装置进而带动刷头部的牙刷板运动以完成刷牙动作。
  3. 根据权利要求2所述的电动牙刷，其特征在于，传动装置包括环形导槽，环形导槽内部嵌设有活动板，活动板可在环形导槽内部相对于环形导槽竖向运动，活动板的中部设置有环形轨道孔，环形轨道孔内部设置有传动齿轮，环形轨道孔的两端设置有换向弧形导板，换向弧形导板可引导驱动齿轮从环形轨道孔的一侧换向运动到另一侧，驱动齿轮穿过环形轨道孔并与环形轨道孔的传动齿轮啮合，环形导槽与牙刷板固定连接，驱动齿轮旋转时通过啮合的传动齿轮驱动活动板运动，活动板带动环形导槽和牙刷板沿水平方向来回摆动。
  4. 根据权利要求3所述的电动牙刷，其特征在于，环形导槽呈长方形、圆形或椭圆形，活动板水平方向的宽度与环形导槽的槽孔水平方向的宽度相同，活动板竖直方向的高度小于环形导槽的槽孔竖直方向的高度。
  5. 根据权利要求3所述的电动牙刷，其特征在于，环形导槽的内环边上设置有环形槽道，活动板嵌设在环形导槽的环形槽道内。
  6. 根据权利要求2所述的电动牙刷，其特征在于，驱动装置与转接轴相啮合，转接轴与驱动齿轮相啮合，驱动装置通过转接轴与驱动齿轮相连。
  7. 根据权利要求1所述的电动牙刷，其特征在于，控制板上设置有电源开关、调速按钮及定时控制模块，控制板可控制调速电机的开关及运行速度，定时控制模块可控制调速电机运行设定的时间。
  8. 根据权利要求3所述的电动牙刷，其特征在于，牙刷板由硅胶材料制成，并且包括前外齿牙刷板和侧外齿牙刷板以及内侧齿牙刷板，前外齿牙刷板和侧外齿牙刷板构成牙齿走向的U形，内侧齿牙刷板也呈U形。
  9. 根据权利要求8所述的电动牙刷，其特征在于，前外齿牙刷板、侧外齿牙刷板以及内侧齿牙刷板固定相连，前外齿牙刷板、侧外齿牙刷板以及内侧齿牙刷板为一体成型结构或者为可拆卸连接结构。
  10. 根据权利要求8所述的电动牙刷，其特征在于，传动装置与前外齿牙刷板为一体成型结构，刷头部的U形外壳的两端设置有咬合部以方便用户咬住咬合部进行刷牙。
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