WO2021007886A1 - 电动牙刷刷头 - Google Patents

电动牙刷刷头 Download PDF

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Publication number
WO2021007886A1
WO2021007886A1 PCT/CN2019/098212 CN2019098212W WO2021007886A1 WO 2021007886 A1 WO2021007886 A1 WO 2021007886A1 CN 2019098212 W CN2019098212 W CN 2019098212W WO 2021007886 A1 WO2021007886 A1 WO 2021007886A1
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WO
WIPO (PCT)
Prior art keywords
groove
accommodating cavity
brush
transmission
electric toothbrush
Prior art date
Application number
PCT/CN2019/098212
Other languages
English (en)
French (fr)
Inventor
郭志焱
李军
兰德福
Original Assignee
浙江宝龙机电有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江宝龙机电有限公司 filed Critical 浙江宝龙机电有限公司
Publication of WO2021007886A1 publication Critical patent/WO2021007886A1/zh

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Classifications

    • 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
    • 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
    • A61C17/222—Brush body details, e.g. the shape thereof or connection to handle

Definitions

  • the invention relates to the technical field of daily necessities, in particular to a brush head structure in an electric toothbrush.
  • the brush head structure of electric toothbrushes basically includes a brush handle, a brush plate connected to the brush handle, and a transmission rod for transmission connection with a driving device.
  • the disc structure usually has a cavity brush disc seat, a rotating disc arranged on the brush disc base, and multiple bundles of bristles fixedly arranged on the rotating disc.
  • the driving device usually adopts a small motor, and the rotating disc is driven by a transmission rod and a transmission assembly. Rotation drives the rotation of the bristles and realizes the cleaning of the oral cavity.
  • the rotating disk is mostly circular, and multiple bundles of bristles are evenly distributed along the circumference of the rotating disk.
  • the transmission structure of the current common electric toothbrush head is relatively complicated and difficult to assemble, resulting in low production efficiency, and it is difficult to ensure a close fit between the transmission shaft and the brush head, and the noise is relatively large.
  • the present invention provides an electric toothbrush head, which has a simple and reasonable structure, can effectively drive the upper brush plate of the head, and the overall structure is convenient to assemble and has less noise during use.
  • the present invention provides an electric toothbrush head, which includes a brush handle and a brush plate.
  • the brush handle is hollowed with an accommodating cavity, one end of the brush handle is provided with a rotating groove, and the other end is provided with a transmission slot.
  • the rotation groove and the transmission slot are connected through the accommodating cavity, the brush plate is rotatably arranged on the rotation groove, a driving seat is rotatably arranged in the accommodating cavity, and the driving seat is provided with a drive connection for connecting with the motor.
  • a transmission rod that reciprocally rotates in the accommodating cavity, the accommodating cavity is also rotatably provided with a reversing member, a traction belt is provided in the accommodating groove, one end of the traction belt is fixedly connected with the outer peripheral wall of the brush plate, and the other One end is fixedly connected with the outer peripheral wall of the driving base after being reversed by the reversing member to form a transmission of the driving base to the rotation of the brush plate.
  • the beneficial effect of this arrangement is that it is arranged in this form, where the rotating groove is arranged on the side wall near the end, the brush plate is arranged in the rotating groove, and the bristles are arranged in the width direction of the accommodating cavity, so that the brush The tray is in a horizontal state.
  • the traction belt extending into the accommodating cavity first extends in the length direction of the accommodating groove, and after passing through the turning member, its orientation becomes the width direction of the accommodating cavity, where the width direction and the length direction include A certain range of deflection in this direction, 15° left and right deflection in this direction are included in the length direction or width direction, and finally connected to the side wall of the drive seat.
  • the fixed connection position of the traction belt and the brush plate is preferably located in the brush
  • the fixed position of the top of the disc and the rotating seat is also at the end of the rotating seat far away from the commutator, so that when the driving seat is reciprocally deflected under the drive of the motor, the deflection angle of the driving seat is preferably set to ⁇ 30 ⁇ 45° to avoid excessive
  • the large-angle deflection is also in line with the output mode of the existing motor output shaft. It can pull the traction belt to drive the brush plate to rotate.
  • This structure is simple and easy to achieve. It eliminates the wear between the previous mechanical transmission structures and reduces noise.
  • the structure of the transmission belt is simple to replace, easy to replace, and more convenient to install, which improves production and processing efficiency.
  • the present invention is further provided that the side wall of the brush plate is provided with a transmission groove along the circumferential direction, the side wall of the drive seat is provided with a positioning groove along the circumferential direction, and the reversing member includes a reversing shaft and two rotatingly arranged at the reversing
  • the reversing wheel on the shaft, the reversing shaft is fixedly arranged in the accommodating cavity along the width direction of the accommodating cavity, the traction belt is arranged in a ring shape, one end of the traction belt is tightly sleeved on the transmission groove, and the other end It extends along the length of the accommodating cavity and is tightened and sleeved on the positioning groove after the reversing rotation.
  • the beneficial effect of this arrangement is: adopting the above solution, the traction belt is arranged in this ring shape, the structure is more stable, the traction belt is stronger, and the service life is prolonged. At the same time, it is tightly sleeved on the transmission groove and the positioning groove. With the reciprocating rotation of the driving seat, the reciprocating pulling of the turntable is realized.
  • the structure is simple, simpler, and the processing positioning is also very convenient, improving the production and processing efficiency, and at the same time lower cost.
  • the present invention is further configured such that the included angle formed by the central axis of the brush plate and the central axis of the drive base is 70 to 120°.
  • the present invention is further provided that the positioning groove is bent.
  • the beneficial effect of this arrangement is that by adopting the above solution, the positioning groove is bent and arranged, so that the contact area between the positioning groove and the traction belt is larger, so that the rotation of the driving seat drives the movement of the traction belt better, and the use effect of the overall structure is further improved. .
  • the present invention is further provided that a fixing groove is provided at one end of the accommodating cavity close to the rotating groove, a rotating rod is formed on the driving seat, and the rotating rod is rotatably inserted in the fixing groove to form a positioning of the driving seat.
  • the present invention is further provided that a limit rod is provided at one end of the accommodating cavity close to the rotation groove, a limit groove is provided on the side wall of the brush plate, and the limit rod is inserted in the limit groove to form a rotation of the brush head Angle limit.
  • the present invention is further provided that a positioning sleeve is provided on the transmission slot, a guide groove and a guide block are arranged between the positioning sleeve and the transmission slot, and the guide groove and the guide block are clamped to form a positioning sleeve opposite receiving slot
  • the positioning sleeve is provided with perforations for the transmission rod to pass through.
  • the present invention is further provided that one end of the driving seat close to the transmission slot is provided with a fixing hole, the transmission rod is inserted in the fixing hole, a wedge-shaped groove is opened on the side wall of the transmission rod, and the inner wall of the fixing hole is provided There is a wedge block which is clamped with the wedge groove to form the fixation of the transmission rod in the fixing hole.
  • the beneficial effect of this arrangement is that the above-mentioned solution is adopted to ensure the connection between the transmission rod and the driving seat, and at the same time, it is convenient to disassemble and replace, has a good fixing effect, and improves the stability and use effect of the overall brush head.
  • Figure 1 is a schematic structural diagram of an embodiment of the present invention
  • Figure 2 is a cross-sectional view of an embodiment of the present invention.
  • Figure 3 is a schematic diagram of the transmission connection between the drive base and the brush plate in the embodiment of the present invention.
  • an electric toothbrush head which includes a brush handle 1 and a brush plate 2.
  • the brush handle 1 is hollowed with a cavity 11, and one end of the brush handle 1 A rotating slot is provided, and the other end is provided with a transmission slot.
  • the rotating slot and the transmission slot are connected through the accommodating cavity 11, the brush plate 2 is rotatably arranged on the rotating slot, and the accommodating cavity 11
  • a driving seat 3 is rotatably provided, and the driving seat 3 is provided with a transmission rod 31 for reciprocating rotation in the accommodating cavity 11 formed in a transmission connection with a motor, and a reversing member is also rotatably provided in the accommodating cavity 11, so
  • the accommodating cavity 11 is provided with a traction belt 4, one end of the traction belt 4 is fixedly connected to the outer peripheral wall of the brush plate 2, and the other end is fixedly connected to the outer peripheral wall of the driving seat 3 after being reversed by the reversing member to form a driving seat 3 pair of brushes Drive for disk 2 rotation.
  • the beneficial effect of this arrangement is that it is arranged in this form, where the rotating groove is arranged on the side wall near the end, the brush plate 2 is arranged in the rotating groove, and the bristles are arranged in the width direction of the accommodating cavity 11. So that the brush plate 2 is in a transverse state, the traction belt 4 extending into the accommodating cavity 11 first extends in the length direction of the accommodating groove, and after passing through the turning member, its orientation becomes the width direction of the accommodating cavity 11.
  • the side wall of the seat 3 is connected.
  • the fixed connection position of the traction belt 4 and the brush plate 2 is located at the top of the brush plate 2, and the fixed position with the rotating seat 3 is also located at the end of the rotating seat 3 away from the commutator, so that the driving seat 3 is
  • the deflection angle of the drive seat is preferably set to ⁇ 35° to avoid excessively large deflection, which also conforms to the output mode of the existing motor output shaft, and can pull the traction belt from 4 to drive the brush
  • the disk 2 rotates.
  • This structure is simple and easy to realize. It eliminates the abrasion between the previous mechanical transmission structures, thereby reducing the noise level.
  • the structure of the transmission belt is simple to replace, easy to replace, and at the same time the installation is more convenient, which improves the production and processing efficiency. .
  • the side wall of the brush plate 2 is provided with a transmission groove 21 along the circumferential direction
  • the side wall of the drive seat 3 is provided with a positioning groove 35 along the circumferential direction.
  • the reversing member includes a reversing shaft 5 and two rotatably arranged in the reversing direction.
  • the reversing wheel 51 on the shaft 5, the reversing shaft 5 is fixedly arranged in the accommodating cavity 11 along the width direction of the accommodating cavity 11, the traction belt 4 is arranged in a ring shape, and one end of the traction belt 4 is tightly sleeved On the transmission groove 21, the other end extends along the length of the accommodating cavity 11 and is tightened and sleeved on the positioning groove 35 after being reversed by the reversing wheel 51.
  • the beneficial effect of this arrangement is: adopting the above solution, the traction belt 4 is arranged in this ring-shaped form, the structure is more stable, the traction belt 4 is stronger, and the service life is prolonged.
  • the included angle formed by the central axis of the brush plate 2 and the central axis of the drive base 3 is 90°, that is, the brush plate is disposed in the positive direction along the width direction of the accommodating cavity 11, and the drive base 3 is disposed in the positive direction along the length direction of the accommodating cavity 11.
  • the beneficial effects of this arrangement are: the adoption of the above-mentioned solution makes the transmission after reversing smoother, and at the same time the structure is more stable, and the use effect of the overall structure is improved.
  • the brush tray 2 can contact the teeth of the oral cavity in a larger area to improve the cleaning effect.
  • the positioning groove 35 is bent and arranged.
  • the beneficial effect of this arrangement is that by adopting the above solution, the positioning groove 35 is bent and arranged, so that the contact area between the positioning groove 35 and the traction belt 4 is larger, so that the rotation of the driving seat 3 drives the movement of the traction belt 4 better, and further improves The use effect of the overall structure.
  • a fixing groove is provided at one end of the accommodating cavity 11 close to the rotating groove, and a rotating rod 32 is formed on the driving seat 3, and the rotating rod 32 is rotatably inserted into the fixing groove to form the positioning of the driving seat 3.
  • a limit rod 12 is provided at one end of the above-mentioned accommodating cavity 11 close to the rotating groove, and a limit groove 22 is provided on the side wall of the brush plate 2, and the limit rod 12 is inserted into the limit groove 22 to form a counter brush plate 2 Limit of rotation angle.
  • the above-mentioned transmission slot is provided with a positioning sleeve 6, and a guide groove and a guide block are arranged between the positioning sleeve 6 and the transmission slot.
  • the guide groove and the guide block are clamped to form a shielding of the accommodating groove by the positioning sleeve 6;
  • the positioning sleeve 6 is provided with a through hole for the transmission rod 31 to pass through.
  • the driving seat 3 is provided with a fixing hole at one end close to the transmission slot, the transmission rod 31 is inserted into the fixing hole, a wedge groove 34 is opened on the side wall of the transmission rod 31, and the inner wall of the fixing hole is provided with a wedge shape.
  • Block 33, the wedge-shaped block 33 is clamped with the wedge-shaped groove 34 to form the fixing of the transmission rod 31 in the fixing hole.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Brushes (AREA)

Abstract

一种电动牙刷刷头，包括刷柄（1）和刷盘（2），刷柄（1）中空设置形成有容置腔（11），刷柄（1）一端设置有转动槽，另一端为设置有传动插槽，转动槽与传动插槽通过容置腔（11）导通设置，刷盘（2）转动设置在转动槽上，容置腔（11）中转动设置有驱动座（3），驱动座（3）上设置有用于与电机传动连接形成在容置腔（11）中往复转动的传动杆（31），容置腔（11）中还转动设置有换向件，容置腔（11）中设置有牵引带（4），牵引带（4）一端与刷盘（2）外周壁固定连接，另一端经换向件换向后与驱动座（3）外周壁固定连接形成驱动座（3）对刷盘（2）转动的传动。其结构简单合理，能够有效对刷头上刷盘（2）进行驱动，同时整体结构装配方便，使用时噪音较少。

Description

电动牙刷刷头 技术领域
本发明涉及日用品技术领域，尤其是一种电动牙刷中的刷头结构。
 背景技术
目前，在日常生活中，电动牙刷已经十分的普及，目前电动牙刷的刷头结构基本上包括刷柄、连接在刷柄上的刷盘以及用于与驱动装置传动连接的传动杆，其中的刷盘结构通常具有型腔的刷盘座、设置在刷盘底座上的转动盘以及固定设置在转动盘上的多束刷毛，驱动装置通常采用小型的马达，通过传动杆以及传动组件驱动转动盘的转动，从而带动刷毛的旋转，实现对口腔的清洁，其中转动盘大多数为圆形，多束刷毛沿着转动盘的周向均匀分布。但是目前常见的电动牙刷头的传动结构较为复杂，装配比较困难，导致生产效率较低，而且难以保证传动轴与刷头之间的紧密配合，并且噪音较大。
 技术问题
针对现有技术的不足，本发明提供一种电动牙刷刷头，其结构简单合理，有效对刷头上刷盘进行驱动，同时整体结构装配方便，使用时噪音较少。
 技术解决方案
本发明提供一种电动牙刷刷头，包括刷柄和刷盘，所述刷柄中空设置形成有容置腔，所述刷柄一端设置有转动槽，另一端为设置有传动插槽，所述转动槽与传动插槽通过容置腔导通设置，所述刷盘转动设置在转动槽上，所述容置腔中转动设置有驱动座，所述驱动座上设置有用于与电机传动连接形成在容置腔中往复转动的传动杆，所述容置腔中还转动设置有换向件，所述容置槽中设置有牵引带，所述牵引带一端与刷盘外周壁固定连接，另一端经换向件换向后与驱动座外周壁固定连接形成驱动座对刷盘转动的传动。
 有益效果
这样设置的有益效果是：设置成这种形式，这里的转动槽是设置在靠近端部的侧壁上，刷盘设置在转动槽中，其刷毛是朝容置腔宽度方向设置的，使得刷盘处于横向状态，其向容置腔中延伸的牵引带，先是向容置槽长度方向延伸，经过转向件后使其朝向变为容置腔的宽度方向，这里的宽度方向和长度方向包含了在该方向上偏转一定范围，在该方向左右偏转15°均包含在长度方向或宽度方向的指向之内，最后和驱动座侧壁连接，这里作为优选牵引带与刷盘的固定连接位置位于刷盘顶端，与转动座的固定位置也位于转动座远离换向件的一端，使得驱动座在电机的带动下往复偏转时，这里驱动座的偏转角度作为优选设置为±30~45°，避免过大角度的偏转，也符合现有马达输出轴输出的模式，可以牵拉牵引带从而带动刷盘转动，这种结构简单，利于实现，消除以往机械传动结构之间的磨损，从而减小了噪音大小，并且传动带这一结构替换简单，便于更换，同时安装更为便捷，提高生产加工效率。
本发明进一步设置为所述刷盘侧壁上沿周向设置有传动槽，所述驱动座侧壁沿周向设置有定位槽，所述换向件包括换向轴和两个转动设置在换向轴上的换向轮，所述换向轴沿容置腔宽度方向固定设置在容置腔中，所述牵引带呈环形设置，所述牵引带一端绷紧套设传动槽上，另一端沿容置腔长度方向延伸并经换向轮换向后绷紧套设在定位槽上设置。
这样设置的有益效果是：采用上述方案，将牵引带设置成这种环形这种形式，结构更加稳定，使得牵引带强度更高，延长使用寿命，同时绷紧套设在传动槽以及定位槽上，随着驱动座的往复转动，实现对转盘的往复牵拉，这种结构简单，更为简答，加工定位也十分方便，提高生产加工效率，同时成本更低。
本发明进一步设置为所述刷盘中心轴与驱动座中心轴所成的夹角为70~120°。
这样设置的有益效果是：采用上述方案，使得在换向后的传动更为顺畅，同时结构也更为稳定，提高整体结构的使用效果。
本发明进一步设置为所述定位槽弯折设置。
这样设置的有益效果是，采用上述方案，将定位槽弯折设置，使得定位槽与牵引带的接触面积更大，从而使得驱动座转动带动牵引带的运动更好，进一步提高整体结构的使用效果。
本发明进一步设置为所述容置腔中靠近转动槽的一端设置有固定槽，所述驱动座上形成有转动杆，所述转动杆转动插设在固定槽中形成对驱动座的定位。
这样设置的有益效果是，采用上述方案，这样设置便于对驱动座进行定位安装，使得安装更为便捷，同时定位方便，提高装配效率。
本发明进一步设置为所述容置腔中靠近转动槽的一端设置有限位杆，所述刷盘侧壁上设置有限位槽，所述限位杆插设在限位槽中形成对刷头转动角度的限位。
这样设置的有益效果是，采用上述方案，这样设置结构简单，避免刷盘过度转动，保证结构的稳定性。
本发明进一步设置为所述传动插槽上设置有定位套，所述定位套与传动插槽之间设置有导向槽和导向块，所述导向槽与导向块卡接形成定位套对容置槽的遮蔽，所述定位套上开设有供传动杆穿出的穿孔。
这样设置的有益效果是，采用上述方案，可以更好的对驱动座进行支撑，保证驱动座的位置稳定，同时对容置腔进行遮蔽，减少外界污物进入的可能性，同时这种结构连接简单，利于实现，提高产品的使用效果。
本发明进一步设置为所述驱动座靠近传动插槽的一端设置有固定孔，所述传动杆插设在固定孔中，所述传动杆侧壁上开设有楔形凹槽，所述固定孔内壁设置有楔形块，所述楔形块与楔形凹槽卡接形成传动杆在固定孔中的固定。
这样设置的有益效果是，采用上述方案，保证传动杆与驱动座的连接，同时拆装替换方便，固定效果好，提高整体刷头使用的稳定性，以及使用效果。
 附图说明
图1为本发明实施例的结构示意图；
图2为本发明实施例的剖面视图；
图3为本发明实施例中驱动座与刷盘的传动连接示意图。
 本发明的最佳实施方式
由图1、图2和图3可以看出公开了一种电动牙刷刷头，包括刷柄1和刷盘2，所述刷柄1中空设置形成有容置腔11，所述刷柄1一端设置有转动槽，另一端为设置有传动插槽，所述转动槽与传动插槽通过容置腔11导通设置，所述刷盘2转动设置在转动槽上，所述容置腔11中转动设置有驱动座3，所述驱动座3上设置有用于与电机传动连接形成在容置腔11中往复转动的传动杆31，所述容置腔11中还转动设置有换向件，所述容置腔11中设置有牵引带4，所述牵引带4一端与刷盘2外周壁固定连接，另一端经换向件换向后与驱动座3外周壁固定连接形成驱动座3对刷盘2转动的传动。这样设置的有益效果是：设置成这种形式，这里的转动槽是设置在靠近端部的侧壁上，刷盘2设置在转动槽中，其刷毛是朝容置腔11宽度方向设置的，使得刷盘2处于横向状态，其向容置腔11中延伸的牵引带4，先是向容置槽长度方向延伸，经过转向件后使其朝向变为容置腔11的宽度方向，最后和驱动座3侧壁连接，这里作为优选牵引带4与刷盘2的固定连接位置位于刷盘2顶端，与转动座3的固定位置也位于转动座3远离换向件的一端，使得驱动座3在电机的带动下往复偏转时，这里驱动座的偏转角度作为优选设置为±35°，避免过大角度的偏转，也符合现有马达输出轴输出的模式，可以牵拉牵引带从4而带动刷盘2转动，这种结构简单，利于实现，消除以往机械传动结构之间的磨损，从而减小了噪音大小，并且传动带这一结构替换简单，便于更换，同时安装更为便捷，提高生产加工效率。
上述刷盘2侧壁上沿周向设置有传动槽21，所述驱动座3侧壁沿周向设置有定位槽35，所述换向件包括换向轴5和两个转动设置在换向轴5上的换向轮51，所述换向轴5沿容置腔11宽度方向固定设置在容置腔11中，所述牵引带4呈环形设置，所述牵引带4一端绷紧套设传动槽21上，另一端沿容置腔11长度方向延伸并经换向轮51换向后绷紧套设在定位槽35上设置。这样设置的有益效果是：采用上述方案，将牵引带4设置成这种环形这种形式，结构更加稳定，使得牵引带4强度更高，延长使用寿命，同时绷紧套设在传动槽21以及定位槽35上，随着驱动座3的往复转动，实现对转盘的往复牵拉，这种结构简单，更为简答，加工定位也十分方便，提高生产加工效率，同时成本更低。
上述刷盘2中心轴与驱动座3中心轴所成的夹角为90°，即刷盘沿容置腔11宽度方向正向设置，驱动座3沿容置腔11长度方向正向设置。这样设置的有益效果是：采用上述方案，使得在换向后的传动更为顺畅，同时结构也更为稳定，提高整体结构的使用效果。刷盘2可以更大面积的与口腔牙齿接触，提高清洁效果。
上述定位槽35弯折设置。这样设置的有益效果是，采用上述方案，将定位槽35弯折设置，使得定位槽35与牵引带4的接触面积更大，从而使得驱动座3转动带动牵引带4的运动更好，进一步提高整体结构的使用效果。
上述容置腔11中靠近转动槽的一端设置有固定槽，所述驱动座3上形成有转动杆32，所述转动杆32转动插设在固定槽中形成对驱动座3的定位。这样设置的有益效果是，采用上述方案，这样设置便于对驱动座3进行定位安装，使得安装更为便捷，同时定位方便，提高装配效率。
上述容置腔11中靠近转动槽的一端设置有限位杆12，所述刷盘2侧壁上设置有限位槽22，所述限位杆12插设在限位槽22中形成对刷盘2转动角度的限位。这样设置的有益效果是，采用上述方案，这样设置结构简单，避免刷盘2过度转动，保证结构的稳定性。
上述传动插槽上设置有定位套6，所述定位套6与传动插槽之间设置有导向槽和导向块，所述导向槽与导向块卡接形成定位套6对容置槽的遮蔽，所述定位套6上开设有供传动杆31穿出的穿孔。这样设置的有益效果是，采用上述方案，可以更好的对驱动座3进行支撑，保证驱动座3的位置稳定，同时对容置腔11进行遮蔽，减少外界污物进入的可能性，同时这种结构连接简单，利于实现，提高产品的使用效果。
上述驱动座3靠近传动插槽的一端设置有固定孔，所述传动杆31插设在固定孔中，所述传动杆31侧壁上开设有楔形凹槽34，所述固定孔内壁设置有楔形块33，所述楔形块33与楔形凹槽34卡接形成传动杆31在固定孔中的固定。这样设置的有益效果是，采用上述方案，保证传动杆31与驱动座3的连接，同时拆装替换方便，固定效果好，提高整体刷头使用的稳定性，以及使用效果。
上述的实施例仅为本发明的优选实施例，不能以此来限定本发明的权利范围，因此，依本发明申请专利范围所作的等同变化，比如采用类似工艺、类似结构的等效产品仍属本发明所涵盖的范围。

Claims (7)

  1. 一种电动牙刷刷头，包括刷柄和刷盘，所述刷柄中空设置形成有容置腔，所述刷柄一端设置有转动槽，另一端为设置有传动插槽，所述转动槽与传动插槽通过容置腔导通设置，所述刷盘转动设置在转动槽上，其特征在于：所述容置腔中转动设置有驱动座，所述驱动座上设置有用于与电机传动连接形成在容置腔中往复转动的传动杆，所述容置腔中还转动设置有换向件，所述容置槽中设置有牵引带，所述牵引带一端与刷盘外周壁固定连接，另一端经换向件换向后与驱动座外周壁固定连接形成驱动座对刷盘转动的传动。
  2. 根据权利要求1所述的电动牙刷刷头，其特征在于：所述刷盘侧壁上沿周向设置有传动槽，所述驱动座侧壁沿周向设置有定位槽，所述换向件包括换向轴和两个转动设置在换向轴上的换向轮，所述换向轴沿容置腔宽度方向固定设置在容置腔中，所述牵引带呈环形设置，所述牵引带一端绷紧套设传动槽上，另一端沿容置腔长度方向延伸并经换向轮换向后绷紧套设在定位槽上设置。
  3. 根据权利要求2所述的电动牙刷刷头，其特征在于：所述刷盘中心轴与驱动座中心轴所成的夹角为70~120°。
    4 根据权利要求2所述的电动牙刷刷头，其特征在于：所述定位槽弯折设置。
  4. 根据权利要求1或2或3所述的电动牙刷刷头，其特征在于：所述容置腔中靠近转动槽的一端设置有固定槽，所述驱动座上形成有转动杆，所述转动杆转动插设在固定槽中形成对驱动座的定位。
  5. 根据权利要求1或2或3所述的电动牙刷刷头，其特征在于：所述容置腔中靠近转动槽的一端设置有限位杆，所述刷盘侧壁上设置有限位槽，所述限位杆插设在限位槽中形成对刷头转动角度的限位。
  6. 根据权利要求1或2或3所述的电动牙刷刷头，其特征在于：所述传动插槽上设置有定位套，所述定位套与传动插槽之间设置有导向槽和导向块，所述导向槽与导向块卡接形成定位套对容置槽的遮蔽，所述定位套上开设有供传动杆穿出的穿孔。
  7. 根据权利要求6所述的电动牙刷刷头，其特征在于：所述驱动座靠近传动插槽的一端设置有固定孔，所述传动杆插设在固定孔中，所述传动杆侧壁上开设有楔形凹槽，所述固定孔内壁设置有楔形块，所述楔形块与楔形凹槽卡接形成传动杆在固定孔中的固定。
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