WO2023082876A1 - 清洁护理用具 - Google Patents

清洁护理用具 Download PDF

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Publication number
WO2023082876A1
WO2023082876A1 PCT/CN2022/121612 CN2022121612W WO2023082876A1 WO 2023082876 A1 WO2023082876 A1 WO 2023082876A1 CN 2022121612 W CN2022121612 W CN 2022121612W WO 2023082876 A1 WO2023082876 A1 WO 2023082876A1
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WO
WIPO (PCT)
Prior art keywords
boss
frame
cleaning
driven wheel
drive shaft
Prior art date
Application number
PCT/CN2022/121612
Other languages
English (en)
French (fr)
Inventor
戴晓国
徐振武
Original Assignee
上海携福电器有限公司
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Filing date
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Application filed by 上海携福电器有限公司 filed Critical 上海携福电器有限公司
Publication of WO2023082876A1 publication Critical patent/WO2023082876A1/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
    • A61C17/225—Handles or details thereof
    • 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

Definitions

  • the present invention relates to a cleaning and care appliance such as an electric toothbrush, and more particularly to a cleaning and care appliance, such as an electric toothbrush, with a linkage mechanism that converts the rotational motion of the drive device into the reciprocating rotation of the drive shaft.
  • Electric toothbrushes have a handle and a brush head attached to a drive shaft protruding from the handle.
  • the inside of the handle is equipped with a rotary motor.
  • the driving force provided by the rotary motor is output through its output shaft, and converted into reciprocating rotation of the drive shaft through the planar four-bar linkage structure, so that the brush head on it swings back and forth.
  • the longitudinal axis of the rotating motor and the longitudinal axis of the drive shaft directly attached to the brush head are equal and offset from each other, and the offset distance is usually more than 5mm.
  • the brush head of the electric toothbrush is arranged eccentrically with respect to the central longitudinal axis of the handle.
  • the present invention provides a cleaning and care appliance, which includes: a housing, a chamber is formed inside the housing; a motor, the motor includes an output shaft with a first axis, the The output shaft rotates, the motor is arranged in the chamber, the output shaft is provided with a driving wheel; the drive shaft has a second axis and extends out of the chamber; and a linkage mechanism, The linkage mechanism is respectively connected to the driving wheel of the output shaft and the drive shaft and is configured to convert the rotational movement of the output shaft about the first axis into the rotation of the drive shaft about the second axis.
  • the cleaning and care appliance includes a frame, the frame is disposed adjacent to the motor in the housing, the frame has a frame bottom wall, and protrudes from the frame bottom wall
  • the first boss and the second boss the drive shaft is accommodated in the first boss cavity formed by the first boss, and the second boss has a hole, the drive shaft is accommodated in the first boss cavity
  • the hole portion is used for the reciprocating rotation, and the second boss is stacked above the first boss so that the hole is located above the cavity of the first boss.
  • the second boss is stacked above the first boss such that the first axis of the output shaft is substantially aligned with the second axis of the drive shaft. That is to say, the longitudinal axes of the output shaft and the drive shaft are aligned or parallel with an offset distance of less than 1 mm, and the distal end of the drive shaft is located directly above the output shaft.
  • the positional relationship between the drive shaft and the output shaft reduces the size of the handle part, avoids the offset of the brush head relative to the handle part, and makes the shape design more flexible.
  • both the output shaft and the drive shaft can be held by the same frame with the axes of the motor output shaft and drive shaft substantially aligned.
  • the bottom of the boss hole is provided between the first boss and the second boss, the bottom of the boss hole abuts against the end of the drive shaft, and the bottom of the boss hole integrally formed with at least one of the first boss and the second boss.
  • the output shaft of the motor is provided with a driving wheel, and the driving wheel is at least partially accommodated in the first boss cavity
  • the linkage mechanism further includes: a driven wheel , the driven wheel meshes with the driving wheel gear; the driven wheel eccentric rod, the driven wheel eccentric rod is connected to the driven wheel, and the central axis of the driven wheel eccentric rod is eccentric relative to the rotation axis of the driven wheel Arrangement; connecting rod, one end of the connecting rod is connected to the driven wheel eccentric rod; a driving shaft eccentric rod, the driving shaft eccentric rod is connected to the other end of the connecting rod; and a driving shaft connecting rod, the driving shaft One end of the connecting rod is connected to the driving shaft eccentric rod, and the other end of the driving shaft connecting rod is fixed to the driving shaft.
  • the first boss has the first boss wall circumferentially surrounding the driving wheel, the first boss wall has a notch, and at the notch, the The driven wheel meshes with the driving wheel.
  • the other end of the drive shaft connecting rod is fixed to the drive shaft above the second boss.
  • the rack further includes an outer wall of the rack, the outer wall of the rack extends from the bottom wall of the rack, is integrally formed with the bottom wall of the rack and surrounds the linkage mechanism , wherein the frame bottom wall is provided with a first opening between the first boss and the outer wall, and the first opening accommodates one end of the driven wheel eccentric rod.
  • the second boss is formed separately from the first boss, and the second boss is clamped to the first boss.
  • the bottom wall of the frame forms a boss bottom hole on the side of the first boss close to the motor, and the output shaft of the motor extends into the first boss through the boss bottom hole. In the cavity.
  • the frame provides a compact arrangement structure by providing two overlapping bosses to install the link mechanism and the drive shaft. It is particularly advantageous that, in the present invention, the longitudinal axis of the brush head of the electric toothbrush and the longitudinal axis of the handle can be substantially on a straight line, and the drive shaft is kept substantially aligned with the output shaft of the motor through the same frame, so that the positioning is accurate and Easy to install.
  • FIG. 1 is a perspective view showing an electric toothbrush according to a preferred embodiment of the present invention.
  • Fig. 2 is a perspective view showing the internal structure of the electric toothbrush shown in Fig. 1 according to a preferred embodiment of the present invention, wherein part of the handle housing is removed.
  • Fig. 3 is a front view showing a link mechanism according to a preferred embodiment of the present invention.
  • Fig. 4 is a perspective view showing a motor and a link mechanism according to a preferred embodiment of the present invention.
  • Fig. 5 is a perspective view showing a linkage mechanism according to a preferred embodiment of the present invention, in which a four-bar linkage structure is schematically shown.
  • Fig. 6 shows a perspective view of a rack accommodating a linkage mechanism according to a preferred embodiment of the present invention.
  • Fig. 7 shows another perspective view of the frame housing the linkage mechanism according to the preferred embodiment of the present invention, wherein the drive shaft is attached to the frame.
  • an electric toothbrush 100 is taken as a typical example of a personal cleaning and care appliance, and an exemplary embodiment of the present invention is described in more detail with reference to the accompanying drawings.
  • the electric toothbrush 100 is taken as an example for explanation below, the present invention is not limited thereto.
  • the present invention is also applicable to electric shavers, electric facial cleansers, electric showers and other cleaning and care appliances that can provide cleaning action through the driving device.
  • nasal end/near side refers to the end or side of the position where the cleaning force acts close to the cleaning care appliance when it is used
  • far end/far side refers to the end or side that is close to the position where the cleaning force acts when it is used away from the cleaning care appliance.
  • FIG. 1 shows a perspective view of a cleaning and care appliance according to a preferred embodiment of the present invention
  • the cleaning and care appliance is an electric toothbrush 100 .
  • the electric toothbrush 100 mainly includes a handle part 1 and a brush head 2 detachably mounted on the handle part 1 .
  • the handle part 1 includes a handle housing 6 and various functional components installed in the handle housing 6 .
  • Cleaning elements 4 such as bristles are provided on the brush head 2 .
  • the middle part of the handle housing 6 is provided with a switch part 3 slightly close to the proximal side, and the user can press the switch part 3 to open each functional part inside the electric toothbrush 100 to make the brush head 2 reciprocate.
  • Fig. 2 further shows the internal structure of the electric toothbrush 100 according to a preferred embodiment of the present invention.
  • the electric toothbrush 100 includes a battery 5, a circuit board 8, a motor 10, and a linkage mechanism 7 arranged in a chamber formed by the handle housing 6. and drive shaft 11.
  • a frame 20 for accommodating and maintaining the link mechanism 7 and the drive shaft 11 and a frame cover 26 assembled with the frame 20 at the proximal side of the frame 20 are provided in the handle housing 6 .
  • the battery 5 is arranged at the distal side of the chamber of the handle part 1 to provide power for the motor 10 of the electric toothbrush 100 .
  • the circuit board 8 is arranged between the battery 5 and the motor 10, on which switches and related control devices are installed.
  • the circuit board 8 is disposed on the distal side of the motor 10 , and the output shaft of the motor 10 extends toward the link mechanism 7 on the proximal side of the motor 10 .
  • the output shaft is capable of rotational movement about its longitudinal axis L 2 (first axis).
  • the link mechanism 7 is configured as a driving wheel 16 and a drive shaft 11 respectively connected to the output shaft of the motor 10 for converting the rotational motion of the output shaft around the drive shaft 11 into the reciprocation of the drive shaft 11 around its longitudinal axis L 1 (second axis). turn.
  • the drive shaft 11 connected to the linkage mechanism 7 extends partly out of the cavity formed by the handle housing 6 of the handle in order to connect the brush head 2 .
  • FIG. 3 is a plan view showing a link mechanism 7 according to a preferred embodiment of the present invention
  • FIG. 4 is a perspective view showing a motor 10 and a link mechanism 7 according to a preferred embodiment of the present invention.
  • the link mechanism 7 includes a driven wheel 15 , a driven wheel eccentric rod 17 , a connecting rod 14 , a drive shaft eccentric rod 13 and a drive shaft connecting rod 12 , and these components constitute a four-bar linkage mechanism.
  • the driving wheel 16 is a cylindrical gear, which is installed on the output shaft of the motor 10, the rotation axis of the driving wheel 16 is in line with the longitudinal axis L2 of the output shaft, and the output of the motor 10
  • the rotation of the shaft drives the driving wheel 16 to rotate.
  • the driven wheel 15 is also a cylindrical gear, which meshes with the driving wheel 16 , and the rotation axis of the driven wheel 15 is parallel to the rotation axis of the driving wheel 16 but separated by a distance.
  • the driven wheel eccentric rod 17 in the link mechanism 7 is arranged substantially along the longitudinal direction, and the driven wheel eccentric rod 17 is respectively connected with the driven wheel 15 and the connecting rod 14 .
  • the connecting rod 14 is arranged transversely to the longitudinal direction, and connects the driven wheel eccentric rod 17 and the driving shaft eccentric rod 13 respectively.
  • the connecting rod 14 has a first hole 18 and a second hole 19 , one end of the driven wheel eccentric rod 17 is inserted into the first hole 18 , and the center of the first hole 18 is offset relative to the center of rotation of the driven wheel 15 , the driven wheel eccentric rod 17 is configured to connect the first hole 18 with a center offset and the driven wheel 15 together, which also constitutes the driving arm of the planar four-bar linkage mechanism.
  • the drive shaft eccentric rod 13 is connected to the connecting rod 14 and the drive shaft connecting rod 12 respectively.
  • the distal end of the drive shaft eccentric rod 13 is inserted into the second hole 19 of the connecting rod 14 .
  • the drive shaft eccentric rod 13 is also arranged substantially in the longitudinal direction and is offset to one side of the drive shaft 11 .
  • the drive shaft connecting rod 12 is respectively connected to the drive shaft eccentric rod 13 and the drive shaft 11 . Similar to the connecting rod 14, the drive shaft connecting rod 12 also has a first hole and a second hole separated by a certain distance, wherein the drive shaft eccentric rod 13 is inserted into the first hole, and the distal end of the drive shaft 11 is inserted through the second hole .
  • the central axis of the second hole of the drive shaft connecting rod 12 of the linkage mechanism 7 is substantially aligned with the rotation axis of the driving wheel 16, that is to say inserted into the second hole.
  • the longitudinal axis L 1 of the drive shaft 11 in the second bore is substantially aligned with the longitudinal axis of the output shaft connected to the motor 10 .
  • substantially aligned between the axis and the axis means that the two axes are on a straight line or the distance between the two parallel offsets is less than 1mm.
  • FIG. 5 shows a schematic diagram of a four-bar linkage device composed of the above-mentioned link mechanism 7 .
  • point O is the center of the drive shaft 11
  • point A is the center of the second hole of the connecting rod 14
  • point B is the center of the first hole of the connecting rod 14, that is, the position of the central axis of the eccentric shaft of the driven wheel
  • point C is the center of rotation of the driven wheel 15.
  • the rotation of the output shaft of the motor 10 drives the driving wheel 16 to rotate, and the engagement of the driving wheel 16 drives the driven wheel 15 to rotate around point C.
  • the driven wheel 15 is fixed to the eccentric rod 17 of the driven wheel, and the rotation of the driven wheel 15 drives the eccentric rod 17 of the driven wheel to also revolve around point C.
  • the driven wheel eccentric rod 17 drives the connecting rod 14, the drive shaft eccentric rod 13, and the drive shaft connecting rod 12 to reciprocate around point C, thereby driving the drive shaft 11 to reciprocate around point O, thereby realizing the brush head 2 installed on the drive shaft 11 reciprocating motion.
  • the drive shaft 11, the drive shaft connecting rod 12, the connecting rod 14, the driven wheel 15 and the driven wheel eccentric rod 17 constitute a planar four-bar linkage structure.
  • the line connecting the centers of the holes 18 constitutes a driving arm of a planar four-bar linkage structure, and the driving arm can continuously rotate 360 degrees, thereby realizing the reciprocating rotation of the driving shaft 11 around the longitudinal axis.
  • the frame 20 is arranged adjacent to the motor 10 in the casing.
  • the frame 20 has a frame bottom wall and a frame outer wall.
  • the first boss 24 and the second boss 23 protruding in the longitudinal direction, wherein the first boss 24 has a first boss wall, the first boss wall surrounds the first boss cavity 30, and the second boss
  • the table 23 has a second boss wall that surrounds the hole portion 21 .
  • the second boss 23 is stacked above the first boss 24 in the longitudinal direction such that the hole portion 21 is located above the first boss cavity 30 .
  • the hole portion 21 is located directly above the first boss cavity 30, that is, the hole portion 21 is entirely located in the space above the first boss cavity 30 in the longitudinal direction, so that the same frame 20 can hold and accommodate
  • the axes of the output shaft and the drive shaft 11 are substantially aligned.
  • a boss hole bottom 22 is provided between the first boss 24 and the second boss 23 , and the upper surface of the bottom 22 abuts against the end of the drive shaft 11 , thereby driving the drive shaft 11 to the role of positioning support.
  • the boss hole bottom 22 is integrally formed with the second boss wall, thereby becoming a part of the second boss 23 .
  • the bottom of the boss hole may also be integrally formed with the first boss 24 , for example, as a part of the top of the second boss 23 .
  • the first boss 24, the second boss 23 and the bottom of the hole of the boss can also be integrally formed.
  • the frame bottom wall 27 forms a boss bottom hole 25 on the side of the first boss 24 close to the motor 10, and the output shaft of the motor 10 can extend into the first boss through the boss bottom hole 25.
  • the diameter of the boss bottom hole 25 is set slightly larger than that of the driving wheel 16 , and a part of the driving wheel 16 extends through the bottom hole 25 .
  • the bottom hole 25 of the boss can also be set smaller so that only the output shaft of the motor 10 is allowed to pass through.
  • a notch is specially provided on the first boss wall 28. It can be clearly seen from FIGS. The driving wheel 16 and the driven wheel 15 located substantially outside the boss cavity 30 can engage with each other.
  • Frame bottom wall 27 and frame cover 26 are also respectively provided with two openings, and the positions of two openings correspond up and down preferably, and they receive the near end and the far end of driven wheel eccentric rod 17 respectively, and allow driven wheel The eccentric rod 17 rotates under the drive of the driven wheel 15 .
  • the driving wheel 16 installed on the output shaft of the motor was located in the first boss chamber 30, and the driven wheel 15 was in the space between the first boss chamber 30 outside and the frame outer wall 29. middle.
  • the connecting rod 14 and the drive shaft eccentric rod 13 are located in the space between the second boss wall and the frame outer wall 29 .
  • the driving shaft connecting rod 12 extends laterally in the space between the upper part of the second boss 23 and the lower part of the frame cover 26 , and one end of the connecting rod passing through the hole of the driving shaft 11 is located above the second boss 23 .
  • the second boss 23 and the first boss 24 are preferably formed as independent parts, and the bottom of the second boss 23 is snap-fitted to the top of the first boss 24 .
  • the first boss 24 and the second boss 23 may also be formed as a whole, fixedly assembled with the bottom wall of the frame.
  • the first boss 24 and the second boss 23 can also be injection-molded with the frame 20 as a whole.
  • the frame 20 is provided with two overlapping bosses to install the link mechanism 7 and the drive shaft 11, thereby providing a compact arrangement structure. It is particularly advantageous that, in the present invention, the longitudinal axis of the brush head 2 of the electric toothbrush 100 and the longitudinal axis of the handle can be substantially on a straight line, and the drive shaft 11 is kept substantially in line with the output shaft of the motor 10 through the same frame 20. Alignment, accurate positioning and easy installation.

Abstract

一种清洁护理用具，包括：外壳（1）；作旋转运动的电机（10）；驱动轴（11），驱动轴（11）具有第二轴线并且伸出空腔；以及连杆机构（7），连杆机构（7）分别连接到电机（10）的输出轴和驱动轴（11），并且构造成将输出轴绕第一轴线的旋转运动转换成驱动轴（11）绕第二轴线的往复转动，连杆机构（7）包括连接到输出轴的主动轮（16）；其中清洁护理用具包括机架（20），机架（20）在外壳内相邻电机（10）设置，机架（20）具有机架底壁（27）、从机架底壁（27）突升的第一凸台（24）和第二凸台（23），主动轮（16）容纳在第一凸台（24）的第一凸台腔（30）中，驱动轴（11）容纳在第二凸台（23）的孔部（21）中作往复转动，第二凸台（23）叠置在第一凸台（24）上方，使得孔部（21）位于第一凸台腔（30）的正上方。机架（20）通过设置两个叠置的凸台（23，24）来安装连杆机构（7）和驱动轴（11），从而提供了一种紧凑的布置结构。

Description

清洁护理用具 技术领域
本发明涉及诸如电动牙刷之类的清洁护理用具，尤其涉及具有将驱动装置的旋转运动转换成驱动轴的往复转动的连杆机构的清洁护理用具，例如电动牙刷。
背景技术
目前市场上已有各类手持使用的电动清洁护理用具，诸如电动牙刷。电动牙刷具有手柄和与伸出手柄的驱动轴附连在一起的刷头。手柄的内部装有旋转电机。旋转电机提供的驱动力通过其输出轴输出，并且通过平面四连杆结构转化为驱动轴的往复旋转，从而使其上的刷头往复摆动。
在现有的采用电机作为驱动装置的电动牙刷中，旋转电机的纵向轴线与直接附连刷头的驱动轴的纵向轴线两者平等并相互偏置，偏置的距离通常在5mm以上，在这种情况下，为了缩小产品的体积，电动牙刷的刷头相对于手柄的中心纵向轴线偏心布置。
然而，由于现有平面四连杆结构和驱动轴的安装结构的限制，现有的电机驱动的电动牙刷的整体外形轮廓相对较大，而且外观设计受到刷头和手柄中心纵向轴线偏置的限制。
因此，仍需对现有带有电机驱动装置的电动清洁护理用具的进行改进，在减小体积的同时增强外观的设计美学。
发明内容
为克服现有技术中的不足，本发明提供了一种清洁护理用具，该清洁护理用具包括：外壳，所述外壳内部形成腔室；电机，所述电机包括具有第一轴线的输出轴，所述输出轴作旋转运动，所述电机布置在所述腔室中，输出轴上设有主动轮；驱动轴，所述驱动轴具有第二轴线并且伸出所述腔室；以及连杆机构，所述连杆机构分别连接到所述输出轴的主动轮和所述驱动轴并且构造成将所述输出轴绕所述第一轴线的旋转运动转换成所述驱动轴绕所述第二轴线的往复转动；其中，所述清洁护理用具包括机架，所述机架在所述外壳内相邻所 述电机设置，所述机架具有机架底壁、从所述机架底壁突升出的第一凸台和第二凸台，所述驱动轴容纳在所述第一凸台形成的第一凸台腔中，并且所述第二凸台具有孔部，所述驱动轴容纳在所述孔部中以作所述往复转动，所述第二凸台叠置在所述第一凸台上方，使得所述孔部位于所述第一凸台腔的上方。
根据本发明的另一个方面，所述第二凸台叠置在所述第一凸台上方，使所述输出轴的第一轴线与所述驱动轴的第二轴线基本对齐。也就是说，输出轴和驱动轴的纵向轴线在一直线上或平行偏置距离小于1mm，驱动轴的远端位于输出轴的正上方。
这种驱动轴和输出轴的位置关系减小了手柄部的尺寸，避免了刷头相对手柄部偏置，使得外形设计更灵活。
借助于具有两个叠置凸台的机架，能够在电机输出轴与驱动轴的轴线基本对齐的情况下通过同一个机架来保持输出轴和驱动轴两者。
根据本发明的再一个方面，第一凸台与所述第二凸台之间设有凸台孔底部，所述凸台孔底部抵接所述驱动轴的端部，所述凸台孔底部与所述第一凸台和所述第二凸台中的至少一个一体形成。
根据本发明的再一个方面，所述电机的所述输出轴上设有主动轮，所述主动轮至少部分地容纳在所述第一凸台腔内，所述连杆机构进一步包括：从动轮，所述从动轮与所述主动轮齿轮啮合；从动轮偏心杆，所述从动轮偏心杆连接到所述从动轮，并且所述从动轮偏心杆的中心轴线相对所述从动轮的旋转轴线偏心布置；连杆，所述连杆的一端连接所述从动轮偏心杆；驱动轴偏心杆，所述驱动轴偏心杆连接到所述连杆的另一端；以及驱动轴连接杆，所述驱动轴连接杆的一端连接到所述驱动轴偏心杆，所述驱动轴连接杆的另一端固定到所述驱动轴。
根据本发明的再一个方面，所述第一凸台具有周向围绕所述主动轮的所述第一凸台壁，所述第一凸台壁具有缺口部，在所述缺口部处，所述从动轮和所述主动轮啮合。
根据本发明的再一个方面，所述驱动轴连接杆的所述另一端在所述第二凸台的上方固定到所述驱动轴。
根据本发明的再一个方面，所述机架还包括机架外壁，所述机架外壁从所述机架底壁延伸出，并且与所述机架底壁一体形成并包围所述连杆机构，其中所述机架底壁在所述第一凸台和所述外壁之间设有第一开孔，所述第一开孔容 纳所述从动轮偏心杆的一端。
根据本发明的再一个方面，所述第二凸台相对所述第一凸台分体形成，所述第二凸台卡接到所述第一凸台上。
根据本发明的再一个方面，所述机架底壁在第一凸台靠近所述电机的一侧形成凸台底孔，所述电机的所述输出轴通过凸台底孔伸入第一凸台腔内。
根据本发明的较佳实施例，机架通过设置两个叠置的凸台来安装连杆机构和驱动轴，从而提供了一种紧凑的布置结构。尤为有利的是，在本发明中，电动牙刷的刷头的纵向轴线与手柄的纵向轴线能够基本在一直线上，通过同一个机架使得保持驱动轴基本与电机的输出轴对齐，定位准确且安装方便。
附图说明
为了更完全理解本发明，可参考结合附图来考虑示例性实施例的下述描述，附图中：
图1为示出了根据本发明较佳实施例的电动牙刷的立体图。
图2为示出了根据本发明较佳实施例的图1所示的电动牙刷的内部结构的立体图，其中部分手柄外壳被移除。
图3为示出了根据本发明较佳实施例的连杆机构的正视图。
图4为示出了根据本发明较佳实施例的电机和连杆机构的立体图。
图5为示出了根据本发明较佳实施例的连杆机构的立体图，其中示意性地示出了四连杆结构。
图6示出了根据本发明较佳实施例的容纳连杆机构的机架的立体图。
图7示出了根据本发明较佳实施例的容纳连杆机构的机架的另一立体图，其中驱动轴被附连到机架上。
附图标记列表
1手柄部
2刷头
3开关部
4清洁元件
5电池
6手柄外壳
7连杆机构
8线路板
10电机
11驱动轴
12驱动轴连接杆
13驱动轴偏心杆
14连杆
15从动轮
16主动轮
17从动轮偏心杆
18第二孔
19第一孔
20机架
21孔部
22凸台孔底部
23第二凸台
24第一凸台
25凸台底孔
26机架盖
27机架底壁
28第一凸台壁
29机架外壁
30第一凸台腔100电动牙刷
L1驱动轴纵向轴线
L2输出轴纵向轴线
O驱动轴的中心
A连杆第一孔的中心
B连杆第二孔的中心
C从动轮的旋转中心
具体实施方式
下面结合具体实施例和附图对本发明作进一步说明，在以下的描述中阐述了更多的细节以便于充分理解本发明，但是本发明显然能够以多种不同于此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下根据实际应用情况作类似推广、演绎，因此不应以此具体实施例的内容限制本发明的保护范围。
下文以电动牙刷100作为个人清洁护理用具的典型例子，并结合附图更详细地描述本发明的示例性实施例。虽然下面仅以电动牙刷100为例进行解释说明，但本发明不限于此。本发明也可适用于电动剃须刀、电动洁面器、电动沐浴器等能够通过驱动装置提供清洁动作的清洁护理用具。
为了清楚起见，在本说明书中采用了表述空间相对位置的词语如“近端/近侧”、“远端/远侧”等来简单描述如图所示的一个元件或特征与另一元件(一或多个)或特征(一或多个)的相互关系，“近端/近侧”指靠近清洁护理用具使用时清洁作用力作用位置的端部或侧部；“远端/远侧”指远离清洁护理用具使用时接近清洁作用力作用位置的端部或侧部。
此外，本申请中使用的词汇“和/或”包括所列出的一或多个相关联的词汇中的任一个和所有组合。
尽管本说明书中使用了词语“第一”等来描述多个元件或构成部分，这些元件或构成部分不应受这些词语的限制。这些词语仅用于区分一个元件或构成部分和另一元件或构成部分，而不包含“顺序”。因此，将下面讨论的那些元件或构成部分的序数词相互变换也没有超出本发明的构思和范围。
图1示出了根据本发明较佳实施例的清洁护理用具的立体图，该清洁护理用具为电动牙刷100。
电动牙刷100主要包括手柄部1和可拆卸地安装在手柄部1上的刷头2。手柄部1包括手柄外壳6以及安装在手柄外壳6中的各功能部件。刷头2上设有诸如刷毛的清洁元件4。手柄外壳6的中部略靠近近端侧设有一个开关部3，使用者按动开关部3便能打开电动牙刷100内部的各功能部件，使刷头2作往复运动。
图2进一步示出了根据本发明较佳实施例的电动牙刷100内部构造。如图2所示，沿着电动牙刷100的纵向方向从远端至近端，电动牙刷100包括设置在手柄外壳6形成的腔室中的电池5、线路板8、电机10、连杆机构7和驱动轴11。此外，如图2所示，手柄外壳6内设置了容纳并保持连杆机构7以及驱 动轴11的机架20和在机架20的近端侧与机架20装配在一起的机架盖26。
在较佳实施例中，电池5布置在手柄部1的腔室的远端侧，为电动牙刷100的电机10提供电力。线路板8布置在电池5和电机10之间，其上装有开关以及相关控制器件。线路板8设置在电机10的远端侧，而电机10的输出轴在电机10的近端侧朝着连杆机构7延伸出。电机10致动时，输出轴能够围绕其纵向轴线L 2(第一轴线)作旋转运动。连杆机构7构造成分别连接到电机10输出轴上的主动轮16和驱动轴11，用于将输出轴绕的旋转运动转换成驱动轴11绕其纵向轴线L 1(第二轴线)的往复转动。在电动牙刷100的手柄外壳6的近端，连接到连杆机构7的驱动轴11部分地延伸出手柄的手柄外壳6形成的腔室，以便连接刷头2。
图3为示出了根据本发明较佳实施例的连杆机构7的平面图，而图4为示出了根据本发明较佳实施例的电机10和连杆机构7的立体图。如图3和图4所示，连杆机构7包括从动轮15、从动轮偏心杆17、连杆14、驱动轴偏心杆13以及驱动轴连接杆12，这些部件构成了四连杆机构。
具体地，在较佳实施例中，主动轮16为圆柱齿轮，其安装在电机10的输出轴上，主动轮16的旋转轴线与输出轴的纵向轴线L 2在一直线上，电机10的输出轴的旋转带动主动轮16旋转。从动轮15同样为圆柱齿轮，其与主动轮16啮合，从动轮15的旋转轴线与主动轮16的旋转轴线平行但隔开一距离。连杆机构7中的从动轮偏心杆17基本沿纵向方向布置从动轮偏心杆17分别连接从动轮15和连杆14。
连杆14横向于纵向方向布置，分别连接从动轮偏心杆17和驱动轴偏心杆13。从图5可见，连杆14具有第一孔18和第二孔19，从动轮偏心杆17的一端插入第一孔18中，且第一孔18的中心相对于从动轮15的旋转中心偏置，从动轮偏心杆17构造成将具有中心偏置的第一孔18和从动轮15连接在一起，这也构成了平面四连杆机构的驱动臂。
驱动轴偏心杆13分别连接连杆14和驱动轴连接杆12。驱动轴偏心杆13的远端插入在连杆14的第二孔19中。驱动轴偏心杆13也基本沿纵向方向布置，并且偏置在驱动轴11的一侧。
驱动轴连接杆12分别连接到驱动轴偏心杆13和驱动轴11。与连杆14类似，驱动轴连接杆12上也具有分开一定距离的第一孔和第二孔，其中驱动轴偏心杆13插入第一孔中，而驱动轴11的远端插入通过第二孔。
特别地，如图3和图4所示，在本发明中，连杆机构7的驱动轴连接杆12的第二孔的中心轴线与主动轮16的旋转轴线基本对齐，也就是说插入到第二孔中的驱动轴11的纵向轴线L 1与连接到电机10的输出轴的纵向轴线基本对齐。需特别说明的是，在本发明中，轴线与轴线“基本对齐”是指两轴线在一直线上或者两者平行偏置的距离小于1mm。
图5示出了由上述连杆机构7构成的四连杆装置示意图。在图5中，O点为驱动轴11的中心，A点为连杆14第二孔的中心，B点为连杆14第一孔的中心，也即为从动轮偏心轴的中心轴线所在位置，C点为从动轮15的旋转中心。电机10输出轴的旋转带动主动轮16旋转，主动轮16啮合带动从动轮15围绕C点旋转，从动轮15固定于从动轮偏心杆17，从动轮15的旋转带动从动轮偏心杆17也围绕C点旋转，由于连杆14的第一孔的中心点B相对C点是偏置的，且O点的位置是固定的，随着从动轮偏心杆17围绕C点的旋转，从动轮偏心杆17的旋转带动连杆14、驱动轴偏心杆13、驱动轴连接杆12围绕C点作往复运动，从而带动驱动轴11围绕O点作往复转动，由此实现了驱动轴11上安装的刷头2的往复运动。总之，驱动轴11、驱动轴连接杆12、连杆14、从动轮15和从动轮偏心杆17构成了平面四连杆结构，如图5所示，从动轮15的中心C到连杆14的孔18的中心的连线构成了平面四连杆结构的驱动臂，该驱动臂可以连续360度旋转，由此实现驱动轴11绕纵向轴线的往复转动。
机架20在外壳内相邻电机10设置，特别地，如图6和图7所述，机架20具有机架底壁、机架外壁，在机架外壁的内部从机架底壁基本沿纵向方向突升出的第一凸台24和第二凸台23，其中第一凸台24具有第一凸台壁，第一凸台壁围绕形成了第一凸台腔30，而第二凸台23具有第二凸台壁，第二凸台壁围绕形成孔部21。第一凸台腔30内主要容纳主动轮16，主动轮16能够在第一凸台腔30内旋转，而孔部21内容纳驱动轴11的端部，驱动轴11能够在第二凸台的孔部内转动。如图6所示，第二凸台23在纵向方向上叠置在第一凸台24的上方，使得孔部21位于第一凸台腔30的上方。较佳地，孔部21位于第一凸台腔30的正上方，即，孔部21整体都位于第一凸台腔30纵向上方的空间区域内，这样通过同一个机架20能够保持和容纳轴线基本对齐的输出轴和驱动轴11。
从图3中可以看到，第一凸台24与第二凸台23之间设凸台孔底部22，该底部22的上表面与驱动轴11的端部抵接，从而对驱动轴11起到定位支撑的 作用。在根据本发明的较佳实施例中，凸台孔底部22与第二凸台壁一体形成，由此成为第二凸台23的一部分。但应当理解，在其他替代实施例中，凸台孔底部也可以也第一凸台24一体形成，例如，作为第二凸台23的顶部的一部分。显然，第一凸台24和第二凸台23和凸台孔底部也可以一体形成。
进一步，如图6所述，机架底壁27在第一凸台24靠近电机10的一侧形成凸台底孔25，电机10的输出轴能够通过凸台底孔25伸入到第一凸台腔30内。如图3所示，在本发明较佳实施例中，凸台底孔25的直径设置得比主动轮16稍大，主动轮16的一部分延伸通过底孔25。应当理解，在其他替代实施方式中，凸台底孔25也可设置得较小，使得仅允许电机10的输出轴穿过。
此外，在第一凸台壁28上还特别地设置了一个缺口部，从图3、图6中可以清楚地看到，借助于该缺口部提供的空间，位于第一凸台腔30内部的主动轮16和基本位于凸台腔30外部的从动轮15能够相互啮合。
机架底壁27和机架盖26还分别设置了两个开孔，两个开孔的位置较佳地上下对应，它们分别接纳从动轮偏心杆17的近端和远端，且允许从动轮偏心杆17在从动轮15的带动下旋转。
当连杆机构7安装到机架20内时，安装在电机输出轴上的主动轮16位于第一凸台腔30内，从动轮15于第一凸台腔30外侧与机架外壁29的空间中。连杆14和驱动轴偏心杆13位于第二凸台壁与机架外壁29之间的空间中。驱动轴连接杆12在第二凸台23的上方和机架盖26下方之间的空间中横向地延伸，并且其穿设驱动轴11的孔的一端位于第二凸台23的上方。
此外，如图3，第二凸台23和第一凸台24较佳地形成独立的部件，第二凸台23的底部卡合安装到第一凸台24的顶部上。应当理解，在其他替代实施例中，第一凸台24和第二凸台23也可以形成为一个整体，与机架底壁固定装配在一起。第一凸台24和第二凸台23也可以和机架20注塑为一个整体。
根据本发明的较佳实施例，机架20通过设置两个叠置的凸台来安装连杆机构7和驱动轴11，从而提供了一种紧凑的布置结构。尤为有利的是，在本发明中，电动牙刷100的刷头2的纵向轴线与手柄的纵向轴线能够基本在一直线上，通过同一个机架20使得保持驱动轴11基本与电机10的输出轴对齐，定位准确且安装方便。
本发明虽然以较佳实施例公开如上，但其并不是用来限定本发明，任何本领域技术人员在不脱离本发明的精神和范围内，都可以做出可能的变动和修 改。因此，凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何修改、等同变化及修饰，均落入本发明权利要求所界定的保护范围之内。

Claims (10)

  1. 一种清洁护理用具，包括：
    外壳(1)，所述外壳内部形成腔室；
    电机(10)，所述电机包括具有第一轴线的输出轴，所述输出轴作旋转运动，所述电机布置在所述腔室中；
    驱动轴(11)，所述驱动轴具有第二轴线并且伸出所述腔室；以及
    连杆机构，所述连杆机构分别连接到所述输出轴和所述驱动轴并且构造成将所述输出轴绕所述第一轴线的旋转运动转换成所述驱动轴绕所述第二轴线的往复转动；
    其特征在于，所述清洁护理用具包括机架(20)，所述机架(20)在所述外壳内相邻所述电机(10)设置，所述机架(20)具有机架底壁、从所述机架底壁突升出的第一凸台(24)和第二凸台(23)，所述输出轴至少部分容纳在所述第一凸台(24)形成的第一凸台腔(30)中，并且所述第二凸台(23)具有孔部(21)，所述驱动轴(11)容纳在所述孔部(21)中以作所述往复转动，所述第二凸台(23)叠置在所述第一凸台(24)上方，使得所述孔部(21)位于所述第一凸台腔(30)的上方。
  2. 如权利要求1所述的清洁护理用具，其特征在于，所述第二凸台(23)叠置在所述第一凸台(24)上方，使所述输出轴的第一轴线与所述驱动轴的第二轴线基本对齐。
  3. 如权利要求1所述的清洁护理用具，其特征在于，所述第一凸台与所述第二凸台之间设有凸台孔底部(22)，所述凸台孔底部(22)抵接所述驱动轴(11)的端部，所述凸台孔底部(22)与所述第一凸台(24)和所述第二凸台(23)中的至少一个一体形成。
  4. 如权利要求1所述的清洁护理用具，其特征在于，
    所述电机(10)的所述输出轴上设有主动轮，所述主动轮至少部分地容纳在所述第一凸台腔内；
    所述连杆机构进一步包括：
    从动轮(15)，所述从动轮与所述主动轮齿轮啮合；
    从动轮偏心杆(17)，所述从动轮偏心杆连接到所述从动轮，并且所述从动轮偏心杆的中心轴线相对所述从动轮的旋转轴线偏心布置；
    连杆(14)，所述连杆的一端连接所述从动轮偏心杆(17)；
    驱动轴偏心杆(13)，所述驱动轴偏心杆(13)连接到所述连杆的另一端；以及
    驱动轴连接杆(12)，所述驱动轴连接杆的一端连接到所述驱动轴偏心杆(13)，所述驱动轴连接杆的另一端固定到所述驱动轴。
  5. 如权利要求4所述的清洁护理用具，其特征在于，所述第一凸台具有周向围绕所述主动轮的所述第一凸台壁，所述第一凸台壁具有缺口部，在所述缺口部处，所述从动轮和所述主动轮啮合。
  6. 如权利要求4所述的清洁护理用具，其特征在于，所述驱动轴连接杆(12)的所述另一端在所述第二凸台的上方固定到所述驱动轴。
  7. 如权利要求4所述的清洁护理用具，其特征在于，所述机架还包括机架外壁，所述机架外壁从所述机架底壁延伸出，并且与所述机架底壁一体形成并包围所述连杆机构，
    其中所述机架底壁在所述第一凸台和所述机架外壁之间设有第一开孔，所述第一开孔容纳所述从动轮偏心杆(17)的一端。
  8. 如权利要求7所述的清洁护理用具，其特征在于，所述机架还包括机架盖，所述机架盖具有固定在所述机架底壁的相对端固定到所述机架外壁，所述机架盖上设有第二开孔，所述第二开孔容纳所述从动轮偏心杆(17)的另一端。
  9. 如权利要求1所述的清洁护理用具，其特征在于，所述第二凸台相对所述第一凸台分体形成，所述第二凸台卡接到所述第一凸台上。
  10. 如权利要求1所述的清洁护理用具，其特征在于，所述机架底壁在第一凸台靠近所述电机的一侧形成凸台底孔(25)，所述电机的所述输出轴通过 所述凸台底孔伸入所述第一凸台腔(30)内。
PCT/CN2022/121612 2021-11-11 2022-09-27 清洁护理用具 WO2023082876A1 (zh)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204798047U (zh) * 2015-05-20 2015-11-25 上海携福电器有限公司 往复转动的刷头
CN206198079U (zh) * 2016-08-08 2017-05-31 北京希澈科技有限公司 电动牙刷
WO2017088113A1 (zh) * 2015-11-25 2017-06-01 上海携福电器有限公司 用于电动清洁器具、可往复旋转的头部组件
CN108030427A (zh) * 2017-12-07 2018-05-15 漳州蒙发利创新科技有限公司 一种绕动式机芯组件及使用其的个人清洁护理装置
CN110266170A (zh) * 2019-07-17 2019-09-20 温州伏尔特电子科技有限公司 一种电动牙刷的振动马达
CN209884399U (zh) * 2019-03-20 2020-01-03 伟创亚洲有限公司 一种摆动输出装置以及包含其的电动牙刷
CN209963906U (zh) * 2019-04-04 2020-01-17 深圳市力辉电机有限公司 一种结构紧凑的电机结构

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204798047U (zh) * 2015-05-20 2015-11-25 上海携福电器有限公司 往复转动的刷头
WO2017088113A1 (zh) * 2015-11-25 2017-06-01 上海携福电器有限公司 用于电动清洁器具、可往复旋转的头部组件
CN206198079U (zh) * 2016-08-08 2017-05-31 北京希澈科技有限公司 电动牙刷
CN108030427A (zh) * 2017-12-07 2018-05-15 漳州蒙发利创新科技有限公司 一种绕动式机芯组件及使用其的个人清洁护理装置
CN209884399U (zh) * 2019-03-20 2020-01-03 伟创亚洲有限公司 一种摆动输出装置以及包含其的电动牙刷
CN209963906U (zh) * 2019-04-04 2020-01-17 深圳市力辉电机有限公司 一种结构紧凑的电机结构
CN110266170A (zh) * 2019-07-17 2019-09-20 温州伏尔特电子科技有限公司 一种电动牙刷的振动马达

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