WO2013044747A1 - 用于电动工具的旋转控制机构 - Google Patents

用于电动工具的旋转控制机构 Download PDF

Info

Publication number
WO2013044747A1
WO2013044747A1 PCT/CN2012/081651 CN2012081651W WO2013044747A1 WO 2013044747 A1 WO2013044747 A1 WO 2013044747A1 CN 2012081651 W CN2012081651 W CN 2012081651W WO 2013044747 A1 WO2013044747 A1 WO 2013044747A1
Authority
WO
WIPO (PCT)
Prior art keywords
bracket
control mechanism
rotation control
hole
rotating body
Prior art date
Application number
PCT/CN2012/081651
Other languages
English (en)
French (fr)
Inventor
杨旦程
Original Assignee
李咏
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 李咏 filed Critical 李咏
Priority to US13/824,996 priority Critical patent/US20140054147A1/en
Publication of WO2013044747A1 publication Critical patent/WO2013044747A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/04—Levers
    • H01H3/06—Means for securing to shaft of driving mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for

Definitions

  • the present invention relates to a switch control mechanism, and more particularly to a rotation control mechanism for a power tool.
  • a switch control mechanism of a conventional electric power tool such as an electric screwdriver
  • a trigger portion that triggers a micro switch by a groove on a top surface of a side wall when the rotary body rotates, thereby controlling the rotation or stop of the motor.
  • the switch control mechanism of the existing power tool has at least the following technical problems: there may be a problem that the trigger portion blocks the groove to make the rotating body unable to rotate, and the trigger portion is exposed to It is easy to cause false triggering outside, and the control is not flexible and reliable. Summary of the invention
  • the technical problem to be solved by the creative embodiment of the present invention is to provide a rotation control mechanism for a power tool that is flexible, reliable, stable in performance, compact in structure, and reliable in transmission.
  • a creative embodiment of the present invention provides a rotation control mechanism for a power tool, including a micro switch having a trigger portion, further comprising: a bracket, the micro switch being fixed at the a rotating body pivotally connected to the bracket by a rotating shaft, and a driving body for triggering a triggering portion of the micro switch on the bracket is disposed on the side wall of the rotating body parallel to the side wall direction.
  • an edge of the touch body is provided with a groove, and both edges of the groove are convex symmetric curved surfaces, and the trigger portion is in the groove and follows the rotating body The rotation is in a progressively tapered engagement with the groove.
  • a torsion spring is further disposed on the bracket, and the two extended ends of the torsion spring respectively abut against both ends of the inner portion of the rotating body.
  • a potentiometer is further disposed on the bracket, and the potentiometer is provided with a gear that can rotationally adjust the resistance value thereof, and a top surface of the side wall opposite to the touch body is provided with the A rack that meshes with the gears.
  • the bracket is provided with a first through hole
  • two sidewalls of the rotating body are provided with a second through hole corresponding to the first through hole
  • the second through hole is middle Two through holes whose axes are on the same straight line, and the rotating shaft passes through the first through holes and the second through holes.
  • the micro switch is a push button type, a reed roller type, a lever roller type or a short moving arm type micro switch.
  • the beneficial effects of the embodiment of the present invention are: by pivoting the rotating body on the bracket, the triggering body for triggering the triggering portion of the micro switch is disposed on the side wall of the rotating body parallel to the side wall direction Therefore, the existing control mechanism overcomes the defect that the rotating body cannot rotate and the trigger portion is easily triggered by mistake, thereby achieving flexible and reliable control and stable performance. Compact structure and reliable technical effects.
  • FIG. 1 is a schematic structural view of one side of a rotation control mechanism for a power tool according to an embodiment of the present invention.
  • FIG. 2 is an exploded perspective view of the rotation control mechanism shown in FIG. 1.
  • FIG. 3 is a schematic structural view of the other side of the rotation control mechanism shown in FIG. 1.
  • a rotation control mechanism for a power tool includes a bracket 10, a rotating body 20, a micro switch 30 and a rotating shaft 40 disposed on the bracket 10.
  • the bracket 10 includes a circuit board and a heat sink connected to the circuit board.
  • the bracket 10 is provided with a first through hole 11, a torsion spring 13 and a potentiometer 15.
  • the potentiometer 15 is provided with a gear 151 rotatably adjusting its resistance value, and a top surface of the side wall of the rotating body 20 is provided with a rack 21 that meshes with the gear 151.
  • the rotating body 20 is substantially in the shape of a ship, and is provided with a second through hole 23 corresponding to the first through hole 11, and the second through hole 23 is two through holes whose central axes are on the same straight line. It is disposed on both sidewalls of the rotating body 20.
  • a contact body 25 for triggering the trigger portion 31 of the micro switch 30 is further disposed on the inner side wall of the rotating body 20 in parallel with the side wall direction.
  • the edge of the touch body 25 is provided with a groove, and the two edges of the groove are convex symmetric curved surfaces, and the triggering portion 31 is in the groove, and rotates with the rotating body 20
  • the groove is formed into a gradual transition.
  • the rack 21 is provided on a side wall of the rotating body 20 opposite to the touch body 25.
  • the micro switch 30 is a push button type, a reed roller type, a lever roller type or a short moving arm type micro switch.
  • the rotating shaft 40 is received in the first through hole 11 and the second through hole 23, and the bracket 10 and the rotating body 20 are rotatably connected, that is, the rotating body 20 is rotated by means of a rotating shaft 40 is pivotally connected to the bracket 10.
  • the working process of the rotation control mechanism for the power tool is: when the rotating body 20 receives the user operation and rotates clockwise, the driving body 25 simultaneously rotates the triggering portion 31 to open the micro switch 30, the motor rotates, the tooth The strip 21 simultaneously drives the gear 151 of the potentiometer 15 to rotate to adjust the resistance, thereby adjusting the rotational speed of the motor; when the rotating body 20 is rotated counterclockwise by the user, unlike the above-described working process, the rotating direction of the motor becomes opposite.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

一种用于电动工具的旋转控制机构，包括具有触发部（31）的微动开关（30），支架（10），微动开关固设于支架上；借助于转轴（40）枢接于支架上的旋转体（20），旋转体内侧壁上平行于侧壁方向设有用于触发支架上的微动开关的触发部的触动体（25）。该旋转控制机构通过在支架上枢接旋转体，在旋转体内侧壁上平行于侧壁方向设置用于触发微动开关的触发部的触动体，从而克服了现有的控制机构会出现旋转体无法旋转及触发部易误触发的缺陷，进而达到了控制灵活可靠，性能稳定，结构紧凑，传动可靠的技术效果。

Description

用于电动工具的旋转控制机构 技术领域
[0001] 本发明创造涉及开关控制机构， 尤其涉及一种用于电动工具的旋转控制机构。
背景技术
[0002] 现有电动工具的开关控制机构， 例如电动起子就是旋转体旋转时利用其侧壁顶面的 沟槽触发微动开关的触发部， 进而控制电机的转或停。 然而， 发明人在实施本发明创造过程 中， 发现现有的电动工具的开关控制机构至少存在如下技术问题： 会出现触发部挡住沟槽使 旋转体无法旋转的问题， 且所述触发部暴露于外容易导致误触发， 控制不够灵活可靠。 发明内容
[0003] 本发明创造实施例所要解决的技术问题在于， 提供一种控制灵活可靠， 性能稳定， 结构紧凑， 传动可靠的用于电动工具的旋转控制机构。
[0004] 为了解决上述技术问题， 本发明创造实施例提出了一种用于电动工具的旋转控制机 构， 包括具有触发部的微动开关， 还包括： 支架， 所述微动开关固设于所述支架上； 借助于 转轴枢接于所述支架上的旋转体， 所述旋转体内侧壁上平行于所述侧壁方向设有用于触发支 架上的微动开关的触发部的触动体。
[0005] 进一步地，， 所述触动体的边缘设有沟槽， 所述沟槽的两边缘为凸设的对称曲面， 所 述触发部抵于所述沟槽内， 并随所述旋转体的旋转与所述沟槽成渐入渐出的配合。
[0006] 进一步地， 所述支架上还固设有扭力弹簧， 所述扭力弹簧的两伸长端分别抵于所述 旋转体的内部的两端。
[0007] 进一步地， 所述支架上还固设有电位器， 所述电位器上设有可转动调节其电阻值的 齿轮， 与所述触动体相对的侧壁的顶面设有与所述齿轮啮合的齿条。
[0008] 进一步地， 所述支架上设有第一通孔， 所述旋转体的两侧壁上设有与所述第一通孔 对应的第二通孔， 所述第二通孔为中轴线位于同一直线上的两个通孔， 所述转轴穿过所述第 一通孔和第二通孔。
[0009] 进一步地， 所述微动开关为按钮式、 簧片滚轮式、 杠杆滚轮式或短动臂式微动开 关。
[0010] 本发明创造实施例的有益效果是： 通过在支架上枢接旋转体， 在旋转体内侧壁上平 行于所述侧壁方向设置用于触发所述微动开关的触发部的触动体， 从而克服了现有的控制机 构会出现旋转体无法旋转及触发部易误触发的缺陷， 进而达到了控制灵活可靠， 性能稳定， 结构紧凑， 传动可靠的技术效果。
附图说明
[0011] 图 1是本发明创造实施例的用于电动工具的旋转控制机构的一侧的结构示意图。
[0012] 图 2是图 1所示的旋转控制机构的分解示意图。
[0013] 图 3是图 1所示的旋转控制机构的另一侧的结构示意图。
具体实施方式
[0014] 请参考图 1〜图 3， 本发明创造实施例的用于电动工具的旋转控制机构， 包括支架 10、 旋转体 20、 设于所述支架 10上的微动开关 30及转轴 40。
[0015] 所述支架 10 包括电路板和连接于所述电路板的散热片。 所述支架 10 上设有第一通 孔 11、 扭力弹簧 13及电位器 15。
[0016] 所述扭力弹簧 13 的两伸长端分别抵于所述旋转体 20 的内部的两端， 中间部位固设 于所述支架 10上， 从而所述扭力弹簧 13对所述旋转体 20具有复位作用， 用户操作所述旋 转体 20顺时针或逆时针旋转一定角度后， 旋转体 20可借由所述扭力弹簧 13的弹性恢复力 回归原位。
[0017] 所述电位器 15上设有可转动调节其电阻值的齿轮 151， 所述旋转体 20的侧壁的顶面 设有与所述齿轮 151啮合的齿条 21。
[0018] 所述旋转体 20大致呈船型， 设有与所述第一通孔 11对应的第二通孔 23， 所述第二 通孔 23为中轴线位于同一直线上的两个通孔， 设置于所述旋转体 20的两侧壁上。
[0019] 所述旋转体 20 内侧壁上平行于所述侧壁方向还设有用于触发所述微动开关 30 的触 发部 31 的触动体 25。 所述触动体 25 的边缘设有沟槽， 所述沟槽的两边缘为凸设的对称曲 面， 所述触发部 31抵于所述沟槽内， 并随所述旋转体 20的旋转与所述沟槽成渐入渐出的配 合。 所述齿条 21设于所述旋转体 20的与所述触动体 25相对的侧壁上。
[0020] 所述微动开关 30为按钮式、 簧片滚轮式、 杠杆滚轮式或短动臂式微动开关。
[0021] 所述转轴 40容置于所述第一通孔 11和第二通孔 23内， 可使所述支架 10和所述旋转 体 20转动连接， 也即所述旋转体 20借助于转轴 40枢接于所述支架 10上。
[0022] 所述用于电动工具的旋转控制机构的工作过程为： 旋转体 20 接受用户操作而顺时针 旋转时， 触动体 25同时旋转触动触发部 31而开启微动开关 30， 电机旋转， 齿条 21同时带 动电位器 15的齿轮 151旋转而调节了电阻， 从而调节电机的转速； 旋转体 20接受用户操作 逆时针旋转时与上述工作过程不同的是电机的旋转方向变为相反。
[0023] 以上所述是本发明创造的具体实施方式， 应当指出， 对于本技术领域的普通技术人 员来说， 在不脱离本发明创造原理的前提下， 还可以做出若干改进和润饰， 这些改进和润饰 也视为本发明创造的保护范围。

Claims

1. 一种用于电动工具的旋转控制机构， 包括具有触发部的微动开关， 其特征在于， 所述旋 转控制机构还包括：
支架， 所述微动开关固设于所述支架上；
借助于转轴枢接于所述支架上的旋转体， 所述旋转体内侧壁上平行于所述侧壁方向设有用于 触发支架上的微动开关的触发部的触动体。
2. 如权利要求 1 所述的用于电动工具的旋转控制机构， 其特征在于， 所述触动体的边缘设 有沟槽， 所述沟槽的两边缘为凸设的对称曲面， 所述触发部抵于所述沟槽内， 并随所述旋转 体的旋转与所述沟槽成渐入渐出的配合。
3. 如权利要求 1 所述的用于电动工具的旋转控制机构， 其特征在于， 所述支架上还固设有 扭力弹簧， 所述扭力弹簧的两伸长端分别抵于所述旋转体的内部的两端。
4. 如权利要求 1 所述的用于电动工具的旋转控制机构， 其特征在于， 所述支架上还固设有 电位器， 所述电位器上设有可转动调节其电阻值的齿轮， 与所述触动体相对的侧壁的顶面设 有与所述齿轮啮合的齿条。
5. 如权利要求 1 所述的用于电动工具的旋转控制机构， 其特征在于， 所述支架上设有第一 通孔， 所述旋转体的两侧壁上设有与所述第一通孔对应的第二通孔， 所述第二通孔为中轴线 位于同一直线上的两个通孔， 所述转轴穿过所述第一通孔和第二通孔。
6. 如权利要求 1 所述的用于电动工具的旋转控制机构， 其特征在于， 所述微动开关为按钮 式、 簧片滚轮式、 杠杆滚轮式或短动臂式微动开关。
PCT/CN2012/081651 2011-09-26 2012-09-20 用于电动工具的旋转控制机构 WO2013044747A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/824,996 US20140054147A1 (en) 2011-09-26 2012-09-20 Rotational Control Mechanism for an Electrical Tool

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201120364069.4 2011-09-26
CN201120364069.4U CN202268266U (zh) 2011-09-26 2011-09-26 用于电动工具的旋转控制机构

Publications (1)

Publication Number Publication Date
WO2013044747A1 true WO2013044747A1 (zh) 2013-04-04

Family

ID=46159051

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/081651 WO2013044747A1 (zh) 2011-09-26 2012-09-20 用于电动工具的旋转控制机构

Country Status (3)

Country Link
US (1) US20140054147A1 (zh)
CN (1) CN202268266U (zh)
WO (1) WO2013044747A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202268266U (zh) * 2011-09-26 2012-06-06 雷通科技发展有限公司 用于电动工具的旋转控制机构
EP3117963A1 (de) 2015-07-17 2017-01-18 HILTI Aktiengesellschaft Handwerkzeugmaschine

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003109451A (ja) * 2001-09-28 2003-04-11 Omron Corp トリガスイッチ
US6610946B2 (en) * 2001-04-20 2003-08-26 Black & Decker Inc. Actuation mechanism for a power tool
CN101174814A (zh) * 2007-10-26 2008-05-07 深圳市和而泰电子科技有限公司 电机的无级调速装置和方法
CN101325132A (zh) * 2007-06-13 2008-12-17 鹏智科技(深圳)有限公司 音频播放装置
CN201234367Y (zh) * 2008-07-29 2009-05-06 上海天剑电磁技术有限公司 大功率电磁感应加热设备用直线滑道控制装置
CN201478150U (zh) * 2009-09-02 2010-05-19 乐清市雷顿电气科技有限公司 双电源开关的旋转控制机构
CN201505549U (zh) * 2009-10-16 2010-06-16 东莞市邦泽电子有限公司 一种碎纸机
CN102008227A (zh) * 2010-09-15 2011-04-13 乔林友 一种加热容器用的压力传感器
CN201824334U (zh) * 2010-10-21 2011-05-11 南京德朔实业有限公司 电动工具
CN202003887U (zh) * 2011-01-21 2011-10-05 雷通科技发展有限公司 微动开关旋转控制机构
CN202018860U (zh) * 2011-01-21 2011-10-26 雷通科技发展有限公司 电位器旋转控制机构
CN202268266U (zh) * 2011-09-26 2012-06-06 雷通科技发展有限公司 用于电动工具的旋转控制机构

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196343A (en) * 1978-03-02 1980-04-01 C.A.H., Inc. Hair dryer
US6787721B1 (en) * 2003-12-19 2004-09-07 Wen-Sheng Huang Safety switch of screwdriver

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6610946B2 (en) * 2001-04-20 2003-08-26 Black & Decker Inc. Actuation mechanism for a power tool
JP2003109451A (ja) * 2001-09-28 2003-04-11 Omron Corp トリガスイッチ
CN101325132A (zh) * 2007-06-13 2008-12-17 鹏智科技(深圳)有限公司 音频播放装置
CN101174814A (zh) * 2007-10-26 2008-05-07 深圳市和而泰电子科技有限公司 电机的无级调速装置和方法
CN201234367Y (zh) * 2008-07-29 2009-05-06 上海天剑电磁技术有限公司 大功率电磁感应加热设备用直线滑道控制装置
CN201478150U (zh) * 2009-09-02 2010-05-19 乐清市雷顿电气科技有限公司 双电源开关的旋转控制机构
CN201505549U (zh) * 2009-10-16 2010-06-16 东莞市邦泽电子有限公司 一种碎纸机
CN102008227A (zh) * 2010-09-15 2011-04-13 乔林友 一种加热容器用的压力传感器
CN201824334U (zh) * 2010-10-21 2011-05-11 南京德朔实业有限公司 电动工具
CN202003887U (zh) * 2011-01-21 2011-10-05 雷通科技发展有限公司 微动开关旋转控制机构
CN202018860U (zh) * 2011-01-21 2011-10-26 雷通科技发展有限公司 电位器旋转控制机构
CN202268266U (zh) * 2011-09-26 2012-06-06 雷通科技发展有限公司 用于电动工具的旋转控制机构

Also Published As

Publication number Publication date
US20140054147A1 (en) 2014-02-27
CN202268266U (zh) 2012-06-06

Similar Documents

Publication Publication Date Title
US6938346B1 (en) Pair of scissors comprising a gear transmission mechanism to work a movable jaw thereof
JP4451851B2 (ja) エア駆動工具のロータリーバルブ位置変更切替え機構
JP5201972B2 (ja) 電動手工具装置
JP5839322B2 (ja) 三位置開閉器用操作器
US20130239753A1 (en) Pneumatic driven ratchet wrench
JP2011005628A5 (zh)
TWI728825B (zh) 棘輪扳手之撥鈕結構
WO2013044747A1 (zh) 用于电动工具的旋转控制机构
EP3156182B1 (en) Driving device
WO2011106209A3 (en) Shutter damping assembly
TW200513362A (en) Folding blade knife with spring assisted pivoting feature
TWI544130B (zh) 把手機構
JP2000233383A (ja) 電動工具のスイッチ機構
GB2082248A (en) Automatic door closer
TW202247954A (zh) 機械式調整扭力的數位顯示扭力扳手
KR200467758Y1 (ko) 창호용 핸들
JP4617223B2 (ja) フィンガー把持装置
TWI544131B (zh) 把手裝置及其復位機構
TWM490942U (zh) 棘輪扳手換向裝置
RU2006126333A (ru) Пылесос с качающимся элементом управления
TW201601882A (zh) 棘輪扳手換向裝置
TWI615245B (zh) 棘輪扳手
KR20080006219U (ko) 비닐하우스용 보온덮개 개폐장치
JP2011035645A5 (zh)
JP4615743B2 (ja) 手持ち操作装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 13824996

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12835776

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12835776

Country of ref document: EP

Kind code of ref document: A1