WO2023087855A1 - 一种转动式电动牙刷 - Google Patents

一种转动式电动牙刷 Download PDF

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Publication number
WO2023087855A1
WO2023087855A1 PCT/CN2022/117299 CN2022117299W WO2023087855A1 WO 2023087855 A1 WO2023087855 A1 WO 2023087855A1 CN 2022117299 W CN2022117299 W CN 2022117299W WO 2023087855 A1 WO2023087855 A1 WO 2023087855A1
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WO
WIPO (PCT)
Prior art keywords
mounting seat
bristle mounting
shaft
outer ring
inner ring
Prior art date
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PCT/CN2022/117299
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English (en)
French (fr)
Inventor
何少敏
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温州乐邦电器有限公司
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Publication date
Application filed by 温州乐邦电器有限公司 filed Critical 温州乐邦电器有限公司
Publication of WO2023087855A1 publication Critical patent/WO2023087855A1/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
    • 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
    • A61C17/221—Control arrangements therefor
    • 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
    • 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
    • A61C17/349—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor with multiple brush bodies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • H02K7/075—Means for converting reciprocating motion into rotary motion or vice versa using crankshafts or eccentrics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Definitions

  • the invention relates to the technical field of toothbrushes, in particular to a rotary electric toothbrush.
  • toothbrushes In order to clean the oral cavity in daily life, toothbrushes are used to clean the oral cavity, but manual toothbrushes usually do not clean the teeth cleanly, and irregular manual operation strength and movements can cause bleeding gums and wear of tooth enamel. .
  • the Chinese patent number is 201922011535.X, and the application date is 2019.11.20. It announces a horizontal inner and outer ring rotating in both directions simultaneously.
  • the electric toothbrush includes: a toothbrush head, The toothbrush head includes a toothbrush head housing, a transmission shaft, an inner ring brush head and an outer ring brush head, the transmission shaft is arranged in the toothbrush head housing, and the inner ring brush head is arranged on the toothbrush head housing , connected to the transmission shaft, the outer ring brush head is set outside the inner ring brush head; the handle housing, the handle housing is connected to the toothbrush head housing; the drive shaft is arranged on the handle The housing is connected to the transmission shaft; the transmission gear and the driven gear, the transmission gear is sleeved on the drive shaft, and the driven gear is arranged on the outer ring brush head close to the toothbrush head housing On one side, the transmission gear meshes with the driven gear; the drive motor, the output end is connected to the drive shaft, the drive shaft drives the drive shaft to rotate and then drives the inner ring brush head to
  • the problem with the above technical solution is that the brush head of the inner ring and the brush head of the outer ring are operated in circles, so that the toothpaste is placed on the brush head of the inner ring and the brush head of the outer ring, the toothpaste will fly off under the action of centrifugal force, and the tooth cleaning effect is not good. good.
  • the invention overcomes the deficiencies of the prior art and provides a rotary electric toothbrush, on which the bristle mounting seat of the outer ring and the bristle mounting seat of the inner ring rotate reciprocally and reversely at the same time, the structure is simple, and the tooth cleaning effect is better.
  • a rotary electric toothbrush including a handle body and a toothbrush head assembly
  • the toothbrush head assembly includes a base, an outer ring bristle mounting seat and an inner ring bristle mounting seat
  • the base is installed On the handle body, both the outer ring bristle mounting seat and the inner ring bristle mounting seat are rotatably arranged on the base.
  • the bristle mounting base reciprocates and reversely rotates the drive assembly.
  • the drive assembly includes a motor device and a transmission rod.
  • the motor device is fixed in the handle body.
  • the output shaft can drive the transmission rod to rotate, and the transmission rod simultaneously drives the outer ring bristle mounting seat and the inner ring bristle mounting seat to reciprocate and reversely rotate through the eccentric structure.
  • the motor device can have its own deceleration function, and can also include a motor and a deceleration structure, thereby reducing the speed of the output shaft.
  • the output shaft of the motor device drives the transmission rod to rotate, and the transmission rod simultaneously drives the outer ring bristles through the eccentric structure.
  • the seat and the inner ring bristle mounting seat reciprocate and reversely rotate within a certain angle, and the reciprocating rotation angle of the outer ring bristle mounting seat and the inner ring bristle mounting seat can be determined according to actual needs.
  • the bristles of the outer ring bristle mounting seat When brushing teeth, the bristles of the outer ring bristle mounting seat
  • the bristles of the inner bristle mounting seat and the inner ring bristle mounting seat can reciprocate in the opposite direction at the same time to scrub the tooth surface in two directions, and the reciprocating rotation angle of the outer ring bristle mounting seat and the inner ring bristle mounting seat is small, the centrifugal force is small, and the toothpaste is not easy to fly off , the tooth cleaning effect is better, and the structure is simple.
  • a further setting of the present invention is: the eccentric structure includes a first eccentric shaft and a second eccentric shaft fixed or integrally arranged on the transmission rod, the first eccentric shaft and the second eccentric shaft are set away from the central axis of the transmission rod, and the first eccentric The shaft and the second eccentric shaft are misplaced with each other, the outer ring bristle mounting seat is provided with a first slot for the first eccentric shaft to be inserted, and the inner ring bristle mounting seat is provided with a second slot for the second eccentric shaft to be inserted.
  • the transmission rod drives the first eccentric shaft and the second eccentric shaft to perform eccentric movement, the first eccentric shaft abuts against the side wall of the first placement groove and the second eccentric shaft abuts against the side wall of the second placement groove to realize the bristles of the outer ring
  • the installation seat and the inner ring bristle installation seat reciprocate and reversely rotate at the same time.
  • the transmission rod drives the first eccentric shaft and the second eccentric shaft to perform eccentric movement
  • the first eccentric shaft and the second eccentric shaft can respectively abut against the side walls of the first placement groove and the second placement groove to drive the outer ring
  • the bristle mounting seat and the inner ring bristle mounting seat reciprocate and reversely rotate within a certain angle
  • the structure is simple, the structure is more compact, and the design is reasonable, and the width of the left and right sides of the placement groove matches the diameter of the eccentric shaft, and the placement of the groove
  • the length of the front and rear sides is greater than the rotation range of the eccentric shaft, and the eccentric shaft can only drive the outer ring bristle mounting seat or the inner ring bristle mounting seat to reciprocate, but cannot drive the outer ring bristle mounting seat or the inner ring bristle mounting seat to move back and forth.
  • the further setting of the present invention is: the first eccentric shaft is provided with a first ball head, the first placement groove is provided with a first arc-shaped surface at the side wall corresponding to the first ball head, and the second eccentric shaft A second ball head is arranged on the shaft, and the second placing groove is provided with a second arc-shaped surface at a side wall corresponding to the second ball head.
  • the first ball head is always in contact with the first arc-shaped surface of the first placement groove during the rotation with the first eccentric shaft
  • the second ball head is always in contact with the first arc-shaped surface of the first placement groove during the rotation with the second eccentric shaft.
  • the second arc-shaped surface of the two placement grooves is in contact, which can reduce the rotation noise of the outer ring bristle mounting seat and the inner ring bristle mounting seat, and can also make the rotation of the outer ring bristle mounting seat and the inner ring bristle mounting seat more smooth and stable. Simple and well designed.
  • a further setting of the present invention is: the base is provided with a stop block on the rotation tracks of the outer ring bristle mounting seat and the inner ring bristle mounting seat, and the outer ring bristle mounting seat is provided with a first elastic clip on the side close to the base hook, the inner ring bristle mounting seat is provided with a second elastic hook on the side close to the base, the first elastic hook and the second elastic hook can be hooked on the stop block respectively, and can be arranged along the stop block Rotating, the first elastic hook cooperates with the stop block and the second elastic hook cooperates with the stop block to restrict the outer ring bristle installation seat and the inner ring bristle installation seat from detaching from the base.
  • the first elastic hook and the second elastic hook can be elastically deformed, and the first elastic hook and the second elastic hook can be respectively hooked on the stop block, which not only can limit the bristle mounting seat of the outer ring
  • the bristle mounting seat of the outer ring and the bristle mounting seat of the inner ring are separated from the base without affecting the rotation of the bristle mounting seat of the outer ring and the bristle mounting seat of the inner ring.
  • the structure is simple and the design is reasonable.
  • a further setting of the present invention is that: the handle body is provided with a drive shaft for rotation, the output shaft of the motor device drives the drive shaft to rotate through the deceleration assembly, and the drive shaft directly or indirectly drives the transmission rod to rotate.
  • the speed range of the drive shaft can be adjusted through the deceleration assembly, so that the reciprocating rotation speed of the outer ring bristle mounting seat and the inner ring bristle mounting seat is in a reasonable range, which can meet the cleaning needs of the teeth and reduce tooth decay. Minor damage to the gums.
  • the further setting of the present invention is: the output shaft of the motor device is arranged along the length direction of the handle body, the drive shaft and the output shaft of the motor device are arranged along the same central axis, the drive shaft is connected with the transmission rod through the transmission sleeve, and the The transmission sleeve and the drive shaft are arranged along the same central axis, the transmission sleeve is synchronously rotated and arranged on the drive shaft, and the transmission sleeve and the transmission rod are circumferentially linked and connected.
  • the drive shaft, the transmission sleeve and the output shaft of the motor device are arranged along the same central axis, which saves the installation space. Circumferential linkage connection, convenient disassembly and assembly, stable transmission, simple structure and reasonable design.
  • a further setting of the present invention is: the handle body is provided with a mounting shaft on the side of the output shaft of the motor device, the mounting shaft and the output shaft of the motor device are parallel to each other, and the reduction assembly includes a first transmission gear and a second transmission gear
  • the first transmission gear and the second transmission gear are set on the installation shaft for synchronous rotation
  • the output shaft of the motor device is provided with a driving gear meshed with the first transmission gear
  • the drive shaft is provided with a drive shaft for synchronous rotation with the second transmission gear.
  • the driven gear that meshes with the two transmission gears.
  • the diameter of the first transmission gear is larger than the diameter of the driving gear, which can realize one-stage reduction transmission
  • the diameter of the driven gear is larger than the diameter of the second transmission gear, which can realize two-stage reduction transmission, and the deceleration effect is better.
  • the diameter of the first transmission gear is larger than the diameter of the second transmission gear, which can meet the requirement that the output shaft and the drive shaft of the motor device are arranged along the same central axis, avoid transmission interference, and the transmission through the gear is more stable, simple in structure, and reasonable in design.
  • Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention.
  • Fig. 2 is the cross-sectional structure schematic diagram of the embodiment of the present invention.
  • Fig. 3 is a schematic diagram of the cooperative structure of the transmission rod, the outer ring bristle mounting seat and the inner ring bristle mounting seat;
  • Fig. 4 is a schematic diagram of the installation structure of the outer ring bristle mounting seat and the inner ring bristle mounting seat;
  • Fig. 5 is a schematic structural view of the outer ring bristle mounting seat
  • Fig. 6 is a schematic structural view of the inner ring bristle mounting seat
  • Fig. 7 is a schematic structural view of the drive assembly
  • Fig. 8 is a schematic structural view of the transmission rod
  • Fig. 9 is a schematic diagram of the cooperation structure of the motor device and the drive shaft
  • Fig. 10 is a structural schematic diagram of the deceleration assembly.
  • a rotary electric toothbrush includes a handle body 1 and a toothbrush head assembly.
  • the toothbrush head assembly includes a base 2, an outer ring bristle mounting seat 3 and an inner ring bristle mounting seat 4.
  • the base 2 is installed on On the handle body 1, the outer ring bristle mounting seat 3 and the inner ring bristle mounting seat 4 are both rotatably arranged on the base 2, the outer ring bristle mounting seat 3 is located on the outside of the inner ring bristle mounting seat 4, and also includes a drive for simultaneously driving the outer ring bristle
  • the mounting base 3 and the inner ring bristle mounting base 4 reciprocate and reversely rotate the driving assembly.
  • the angle of the outer ring bristle mounting base 3 and the inner ring bristle mounting base 4 reciprocating rotation can be determined according to actual needs.
  • the driving assembly includes a motor device 5 and a transmission
  • the rod 6 and the motor device 5 are fixedly arranged in the handle body 1, and the transmission rod 6 is arranged on the base 2 to rotate along the length direction of the handle body 1.
  • the output shaft of the motor device 5 can drive the transmission rod 6 to rotate, and the transmission rod 6 passes through the eccentric structure Simultaneously drive the outer ring brush hair mounting seat 3 and the inner ring brush hair mounting seat 4 to reciprocate and reversely rotate.
  • the eccentric structure includes a first eccentric shaft 61 and a second eccentric shaft 62 fixed or integrally arranged on the transmission rod 6, and the first eccentric shaft 61 and the second eccentric shaft 62 are set away from the central axis of the transmission rod 6, The first eccentric shaft 61 and the second eccentric shaft 62 are misplaced with each other.
  • the outer ring bristle mounting seat 3 is provided with a first placement groove 31 for the first eccentric shaft 61 to be inserted.
  • the eccentric structure can also be that gears are respectively rotated at the corresponding outer ring bristle mounting seats and inner ring bristle mounting seats on the base, and the central axis of the two gears is perpendicular to the axial direction of the transmission shaft.
  • the transmission rod drives two gears to rotate, and the two gears respectively drive the eccentric shafts on it to rotate, and the two eccentric shafts respectively drive the outer ring bristle mounting seat and the inner ring bristle mounting seat to reciprocate.
  • the first eccentric shaft 61 is integrally provided with a first ball head 611
  • the first placement groove 31 is provided with a first arc-shaped surface 311 at the side wall corresponding to the first ball head 611
  • the second eccentric shaft 62 is integrally provided with a second ball head 621
  • the second placement groove 41 is provided with a second arc-shaped surface 411 at a side wall corresponding to the second ball head 621 .
  • the base 2 is provided with a stop block 21 on the rotation track of the outer ring bristle mounting seat 3 and the inner ring bristle mounting seat 4, and the outer ring bristle mounting seat 3 is integrally provided with a first
  • the elastic hook 32, the inner ring bristle mounting seat 4 is integrally provided with a second elastic hook 42 on the side close to the base 2, the first elastic hook 32 and the second elastic hook 42 can be respectively hooked on the stop block 21 and can rotate along the stop block 21, the first elastic hook 32 cooperates with the stop block 21 and the second elastic hook 42 cooperates with the stop block 21 to limit the outer ring bristle mounting seat 3 and the inner ring bristle mounting seat 4 Detach from base 2.
  • the handle body 1 is provided with a drive shaft 7 for rotation.
  • the output shaft of the motor device 5 drives the drive shaft 7 to rotate through the deceleration assembly, and the drive shaft 7 directly or indirectly drives the transmission rod 6 to rotate.
  • the motor device itself can also have a deceleration function.
  • the output shaft of the motor device 5 is arranged along the length direction of the handle body 1, the drive shaft 7 and the output shaft of the motor device 5 are arranged along the same central axis, and the drive shaft 5 is connected to the transmission rod 6 through the transmission sleeve 8,
  • the transmission sleeve 8 and the drive shaft 7 are arranged along the same central axis, and the transmission sleeve 8 is synchronously rotated and arranged on the drive shaft 7 by means of a tightly fitted sleeve, and the transmission sleeve 8 and the transmission rod 6 are inserted to realize the circumferential linkage connection.
  • the drive shaft 7 is arranged perpendicular to the output shaft of the motor device 5 .
  • the drive shaft and the transmission rod directly realize the circumferential linkage connection of the two through plugging.
  • the handle body 1 is provided with a mounting shaft 91 on one side of the output shaft of the motor device 5, the mounting shaft 91 is parallel to the output shaft of the motor device 5, and the reduction assembly includes a first transmission gear 92 and a second transmission gear 93, the first transmission gear 92 and the second transmission gear 93 are set on the installation shaft 91 for synchronous rotation, and the output shaft of the motor device 5 is provided with a driving gear 94 meshed with the first transmission gear 92 for synchronous rotation.
  • Synchronous rotation is provided with the driven gear 95 that meshes with the second transmission gear 93, the diameter of the first transmission gear 92 is larger than the diameter of the driving gear 94, can realize one-stage reduction transmission, the diameter of the driven gear 95 is larger than the second transmission gear The diameter of 93 can realize two-stage reduction transmission.
  • the drive shaft and the output shaft of the motor device can also be arranged in a staggered manner, and multiple groups of gears can be arranged for deceleration operation.

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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)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Brushes (AREA)

Abstract

本发明涉及一种转动式电动牙刷，包括柄体和牙刷头组件，牙刷头组件包括底座、外圈刷毛安装座和内圈刷毛安装座，所述底座安装在柄体上，外圈刷毛安装座和内圈刷毛安装座均转动设置在底座上，外圈刷毛安装座位于内圈刷毛安装座的外侧，还包括有同时驱动外圈刷毛安装座和内圈刷毛安装座往复反向转动的驱动组件，所述驱动组件包括电机装置和传动杆，电机装置固定设置在柄体内，所述传动杆沿柄体的长度方向转动设置在底座上，电机装置的输出轴可带动传动杆转动，传动杆通过偏心结构同时驱动外圈刷毛安装座和内圈刷毛安装座往复反向转动。采用上述方案，其上的外圈刷毛安装座和内圈刷毛安装座同时往复反向转动，结构简单，牙齿的清洁效果更佳。

Description

一种转动式电动牙刷 技术领域
本发明涉及牙刷技术领域，尤其是一种转动式电动牙刷。
背景技术
在日常生活中为了清洁口腔，会使用牙刷进行清理口腔，但是手动牙刷通常会出现对牙齿清洁不干净的情况，手动操作力度及动作的不规范会造成牙龈出血，以及造成牙釉质被磨损等问题。
中国专利号为201922011535.X，申请日为2019.11.20的专利，其公布了一种水平内外圈正反双向同时旋转电动牙刷，该水平内外圈正反双向同时旋转电动牙刷包括：牙刷头，所述牙刷头包括牙刷头壳体、传动轴、内圈刷头及外圈刷头，所述传动轴设置在所述牙刷头壳体内，所述内圈刷头设置在所述牙刷头壳体上，连接于所述传动轴，所述外圈刷头套设在所述内圈刷头外侧；手柄壳体，所述手柄壳体连接于所述牙刷头壳体；驱动轴，设置在所述手柄壳体内连接于所述传动轴；传动齿轮及从动齿轮，所述传动齿轮套设在所述驱动轴上，所述从动齿轮设置在所述外圈刷头靠近所述牙刷头壳体的一侧，所述传动齿轮啮合于所述从动齿轮；驱动电机，所述的输出端连接于所述驱动轴，驱动轴带动传动轴转动进而带动内圈刷头转动，传动轴转动带动套设在传动轴上的传动齿轮，传动齿轮通过从动齿轮带动外圈刷头转动。上述技术方案存在的问题是，内圈刷头和外圈刷头进行转圈操作，这样牙膏置于内圈刷头和外圈刷头上，牙膏在离心力的作用下会飞掉，牙齿清洁效果不佳。
发明内容
本发明克服了现有技术的不足，提供了一种转动式电动牙刷，其上的外圈刷毛安装座和内圈刷毛安装座同时往复反向转动，结构简单，牙齿的清洁效果更佳。
为了实现上述目的，本发明采用的技术方案是：一种转动式电动牙刷，包括柄体和牙刷头组件，牙刷头组件包括底座、外圈刷毛安装座和内圈刷毛安装座，所述底座安装在柄体上，外圈刷毛安装座和内圈刷毛安装座均转动设置在底座上，外圈刷毛安装座位于内圈刷毛安装座的外侧，还包括有同时驱动外圈刷毛安装座和内圈刷毛安装座往复反向转动的驱动组件，所述驱动组件包括电机装置和传动杆，所述电机装置固定设置在柄体内，所述传动杆沿柄体的长度方向转动设置在底座上，电机装置的输出轴可带动传动杆转动，传动杆通过偏心结构同时驱动外圈刷毛安装座和内圈刷毛安装座往复反向转动。
通过采用上述方案，该电机装置可自带减速功能，也可以包括马达和减速结构，从而降低输出轴的转速，电机装置的输出轴带动传动杆转动，传动杆通过偏心结构同时驱动外圈刷毛安装座和内圈刷毛安装座在一定角度内往复反向转动，外圈刷毛安装座和内圈刷毛安装座往复转动的角度可根据实际需要而定，在刷牙操作时，外圈刷毛安装座的刷毛和内圈刷毛安装座的刷毛可沿相反的方向同时往复转动，对牙齿的表面进行双向洗刷，并且外圈刷毛安装座和内圈刷毛安装座往复转动角度较小，离心力小，牙膏不易飞离，牙齿的清洁效果更佳，结构简单。
本发明的进一步设置是：所述偏心结构包括固定或一体设置在传动杆的第一偏心轴和第二偏心轴，第一偏心轴和第二偏心轴偏离传动杆的中心轴设置，第一偏心轴和第二偏心轴彼此错位设置，外圈刷毛安装座上设置有供第一偏心轴插设的第一放置槽，内圈刷毛安装座上设置有供第二偏心轴插设的第二放置槽，传动杆带动第一偏心轴和第二偏心轴做偏心运动，第一偏心轴抵靠第一放置槽的侧壁以及第二偏心轴抵靠第二放置槽的侧壁可实现外圈刷毛安装座和内圈刷毛安装座同时往复反向转动。
通过采用上述方案，传动杆带动第一偏心轴和第二偏心轴做偏心运动，第一偏心轴和第二偏心轴可分别抵靠第一放置槽和第二放置槽的侧壁从而带动外圈刷毛安装座和内圈刷毛安装座在一定的角 度内往复反向转动，结构简单，结构更加紧凑，设计合理，并且放置槽的左右两侧的宽度与偏心轴的直径相适配，放置槽的前后两侧的长度大于偏心轴的转动范围，偏心轴只能带动外圈刷毛安装座或内圈刷毛安装座往复转动，不能带动外圈刷毛安装座或内圈刷毛安装座前后移动。
本发明的进一步设置是：所述第一偏心轴上设置有第一球头，所述第一放置槽在对应第一球头的侧壁处设置有第一弧形面，所述第二偏心轴上设置有第二球头，所述第二放置槽在对应第二球头的侧壁处设置有第二弧形面。
通过采用上述方案，第一球头在随第一偏心轴转动的过程中始终与第一放置槽的第一弧形面相接触，第二球头在随第二偏心轴转动的过程中始终与第二放置槽的第二弧形面相接触，这样可降低外圈刷毛安装座和内圈刷毛安装座的转动噪音，也能使外圈刷毛安装座和内圈刷毛安装座的转动更加顺畅稳定，结构简单，设计合理。
本发明的进一步设置是：所述底座在外圈刷毛安装座和内圈刷毛安装座的转动轨迹上设置有止挡块，所述外圈刷毛安装座在靠近底座的一侧设置有第一弹性卡钩，所述内圈刷毛安装座在靠近底座的一侧设置有第二弹性卡钩，第一弹性卡钩和第二弹性卡钩可分别勾设在止挡块上，并可沿止挡块转动，第一弹性卡钩与止挡块配合以及第二弹性卡钩与止挡块配合可限制外圈刷毛安装座和内圈刷毛安装座脱离底座。
通过采用上述方案，第一弹性卡钩和第二弹性卡钩可发生弹性变形，第一弹性卡钩和第二弹性卡钩可分别勾设在止挡块上，不仅可限制外圈刷毛安装座和内圈刷毛安装座脱离底座，而且不会影响外圈刷毛安装座和内圈刷毛安装座进行转动，结构简单，设计合理。
本发明的进一步设置是：所述柄体上转动设置有驱动轴，电机装置的输出轴通过减速组件带动驱动轴转动，驱动轴直接或间接带动传动杆转动。
通过采用上述方案，可通过减速组件调整驱动轴的转速范围，从而使外圈刷毛安装座和内圈刷毛安装座往复转动的速度在合理的区间，又能满足对牙齿的清洁需要，又能减小对牙龈的损伤。
本发明的进一步设置是：所述电机装置的输出轴沿柄体的长度方向设置，所述驱动轴与电机装置的输出轴沿同一中心轴设置，驱动轴通过传动套与传动杆连接，所述传动套与驱动轴沿同一中心轴设置，传动套同步转动设置在驱动轴上，传动套与传动杆周向联动连接。
通过采用上述方案，驱动轴、传动套与电机装置的输出轴沿同一中心轴设置，节省了安装空间，传动套紧配外套于驱动轴，传动杆与传动套通过插接的方式实现两者的周向联动连接，拆装方便，传动稳定，结构简单，设计合理。
本发明的更进一步设置是：所述柄体在电机装置的输出轴的一旁设置有安装轴，安装轴与电机装置的输出轴相互平行，所述减速组件包括第一传动齿轮和第二传动齿轮，第一传动齿轮和第二传动齿轮同步转动设置在安装轴上，所述电机装置的输出轴上同步转动设置有与第一传动齿轮相啮合的主动齿轮，驱动轴上同步转动设置有与第二传动齿轮相啮合的从动齿轮。
通过采用上述方案，第一传动齿轮的直径大于主动齿轮的直径，可实现一级减速传动，从动齿轮的直径大于第二传动齿轮的直径，可实现二级减速传动，减速效果更佳，第一传动齿轮的直径大于第二传动齿轮的直径，可满足电机装置的输出轴与驱动轴沿同一中心轴设置的需要，避免传动干涉，通过齿轮传动，也更加稳定，结构简单，设计合理。
下面结合附图对本发明作进一步描述。
附图说明
图1为本发明实施例的整体结构示意图；
图2为本发明实施例的剖面结构示意图；
图3为传动杆、外圈刷毛安装座和内圈刷毛安装座的配合结构示意图；
图4为外圈刷毛安装座和内圈刷毛安装座的安装结构示意图；
图5为外圈刷毛安装座的结构示意图；
图6为内圈刷毛安装座的结构示意图；
图7为驱动组件的结构示意图；
图8为传动杆的结构示意图；
图9为电机装置和驱动轴的配合结构示意图；
图10为减速组件的结构示意图。
具体实施方式
如图1-图10所示，一种转动式电动牙刷，包括柄体1和牙刷头组件，牙刷头组件包括底座2、外圈刷毛安装座3和内圈刷毛安装座4，底座2安装在柄体1上，外圈刷毛安装座3和内圈刷毛安装座4均转动设置在底座2上，外圈刷毛安装座3位于内圈刷毛安装座4的外侧，还包括有同时驱动外圈刷毛安装座3和内圈刷毛安装座4往复反向转动的驱动组件，外圈刷毛安装座3和内圈刷毛安装座4往复转动的角度可根据实际需要而定，驱动组件包括电机装置5和传动杆6，电机装置5固定设置在柄体1内，传动杆6沿柄体1的长度方向转动设置在底座2上，电机装置5的输出轴可带动传动杆6转动，传动杆6通过偏心结构同时驱动外圈刷毛安装座3和内圈刷毛安装座4往复反向转动。
在本实施例中，偏心结构包括固定或一体设置在传动杆6的第一偏心轴61和第二偏心轴62，第一偏心轴61和第二偏心轴62偏离传动杆6的中心轴设置，第一偏心轴61和第二偏心轴62彼此错位设置，外圈刷毛安装座3上设置有供第一偏心轴61插设的第一放置槽31，内圈刷毛安装座4上设置有供第二偏心轴62插设的第二放置槽41，传动杆6带动第一偏心轴61和第二偏心轴62做偏心运动，第一偏心轴61抵靠第一放置槽31的侧壁以及第二偏心轴62抵靠第二放置槽41的侧壁可实现外圈刷毛安装座3和内圈刷毛安装座4同时往复反向转动。当然该偏心结构也可以是，底座上在对应外圈刷毛安装座和内圈刷毛安装座处分别转动设置有齿轮，两个齿轮的中心轴垂直于传动轴的轴向，两个齿轮上分别设置有偏心轴，传 动杆带动两个齿轮转动，两个齿轮分别带动其上的偏心轴转动，两个偏心轴再分别带动外圈刷毛安装座和内圈刷毛安装座往复转动。
在本实施例中，第一偏心轴61上一体设置有第一球头611，第一放置槽31在对应第一球头611的侧壁处设置有第一弧形面311，第二偏心轴62上一体设置有第二球头621，第二放置槽41在对应第二球头621的侧壁处设置有第二弧形面411。
在本实施例中，底座2在外圈刷毛安装座3和内圈刷毛安装座4的转动轨迹上设置有止挡块21，外圈刷毛安装座3在靠近底座2的一侧一体设置有第一弹性卡钩32，内圈刷毛安装座4在靠近底座2的一侧一体设置有第二弹性卡钩42，第一弹性卡钩32和第二弹性卡钩42可分别勾设在止挡块21上，并可沿止挡块21转动，第一弹性卡钩32与止挡块21配合以及第二弹性卡钩42与止挡块21配合可限制外圈刷毛安装座3和内圈刷毛安装座4脱离底座2。
在本实施例中，柄体1上转动设置有驱动轴7，电机装置5的输出轴通过减速组件带动驱动轴7转动，驱动轴7直接或间接带动传动杆6转动。当然也可以是电机装置自身带减速功能。
在本实施例中，电机装置5的输出轴沿柄体1的长度方向设置，驱动轴7与电机装置5的输出轴沿同一中心轴设置，驱动轴5通过传动套8与传动杆6连接，传动套8与驱动轴7沿同一中心轴设置，传动套8通过紧配插套的方式同步转动设置在驱动轴7上，传动套8与传动杆6通过插接的方式实现两者的周向联动连接。当然也可以是：驱动轴7垂直于电机装置5的输出轴设置。当然也可以是：驱动轴与传动杆通过插接的方式直接实现两者的周向联动连接。
在本实施例中，柄体1在电机装置5的输出轴的一旁设置有安装轴91，安装轴91与电机装置5的输出轴相互平行，减速组件包括第一传动齿轮92和第二传动齿轮93，第一传动齿轮92和第二传动齿轮93同步转动设置在安装轴91上，电机装置5的输出轴上同步转动设置有与第一传动齿轮92相啮合的主动齿轮94，驱动轴7上同步转动设置有与第二传动齿轮93相啮合的从动齿轮95，第一 传动齿轮92的直径大于主动齿轮94的直径，可实现一级减速传动，从动齿轮95的直径大于第二传动齿轮93的直径，可实现二级减速传动。当然也可以驱动轴与电机装置的输出轴错开设置，并可设置多组齿轮进行减速操作。
以上实施例，只是本发明优选地具体实施例，本领域技术人员在本发明技术方案范围内进行的通常变化和替换都包含在本发明的保护范围内。

Claims (7)

  1. 一种转动式电动牙刷，包括柄体和牙刷头组件，牙刷头组件包括底座、外圈刷毛安装座和内圈刷毛安装座，所述底座安装在柄体上，外圈刷毛安装座和内圈刷毛安装座均转动设置在底座上，外圈刷毛安装座位于内圈刷毛安装座的外侧，其特征在于：还包括有同时驱动外圈刷毛安装座和内圈刷毛安装座往复反向转动的驱动组件，所述驱动组件包括电机装置和传动杆，所述电机装置固定设置在柄体内，所述传动杆沿柄体的长度方向转动设置在底座上，电机装置的输出轴可带动传动杆转动，传动杆通过偏心结构同时驱动外圈刷毛安装座和内圈刷毛安装座往复反向转动。
  2. 根据权利要求1所述的一种转动式电动牙刷，其特征在于：所述偏心结构包括固定或一体设置在传动杆的第一偏心轴和第二偏心轴，第一偏心轴和第二偏心轴偏离传动杆的中心轴设置，第一偏心轴和第二偏心轴彼此错位设置，外圈刷毛安装座上设置有供第一偏心轴插设的第一放置槽，内圈刷毛安装座上设置有供第二偏心轴插设的第二放置槽，传动杆带动第一偏心轴和第二偏心轴做偏心运动，第一偏心轴抵靠第一放置槽的侧壁以及第二偏心轴抵靠第二放置槽的侧壁可实现外圈刷毛安装座和内圈刷毛安装座同时往复反向转动。
  3. 根据权利要求2所述的一种转动式电动牙刷，其特征在于：所述第一偏心轴上设置有第一球头，所述第一放置槽在对应第一球头的侧壁处设置有第一弧形面，所述第二偏心轴上设置有第二球头，所述第二放置槽在对应第二球头的侧壁处设置有第二弧形面。
  4. 根据权利要求1或2或3所述的一种转动式电动牙刷，其特征在于：所述底座在外圈刷毛安装座和内圈刷毛安装座的转动轨迹上设置有止挡块，所述外圈刷毛安装座在靠近底座的一侧 设置有第一弹性卡钩，所述内圈刷毛安装座在靠近底座的一侧设置有第二弹性卡钩，第一弹性卡钩和第二弹性卡钩可分别勾设在止挡块上，并可沿止挡块转动，第一弹性卡钩与止挡块配合以及第二弹性卡钩与止挡块配合可限制外圈刷毛安装座和内圈刷毛安装座脱离底座。
  5. 根据权利要求1或2或3所述的一种转动式电动牙刷，其特征在于：所述柄体上转动设置有驱动轴，电机装置的输出轴通过减速组件带动驱动轴转动，驱动轴直接或间接带动传动杆转动。
  6. 根据权利要求5所述的一种转动式电动牙刷，其特征在于：所述电机装置的输出轴沿柄体的长度方向设置，所述驱动轴与电机装置的输出轴沿同一中心轴设置，驱动轴通过传动套与传动杆连接，所述传动套与驱动轴沿同一中心轴设置，传动套同步转动设置在驱动轴上，传动套与传动杆周向联动连接。
  7. 根据权利要求5所述的一种转动式电动牙刷，其特征在于：所述柄体在电机装置的输出轴的一旁设置有安装轴，安装轴与电机装置的输出轴相互平行，所述减速组件包括第一传动齿轮和第二传动齿轮，第一传动齿轮和第二传动齿轮同步转动设置在安装轴上，所述电机装置的输出轴上同步转动设置有与第一传动齿轮相啮合的主动齿轮，驱动轴上同步转动设置有与第二传动齿轮相啮合的从动齿轮。
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