WO2014206330A1 - 低压开关电器的手动操作装置 - Google Patents

低压开关电器的手动操作装置 Download PDF

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Publication number
WO2014206330A1
WO2014206330A1 PCT/CN2014/080920 CN2014080920W WO2014206330A1 WO 2014206330 A1 WO2014206330 A1 WO 2014206330A1 CN 2014080920 W CN2014080920 W CN 2014080920W WO 2014206330 A1 WO2014206330 A1 WO 2014206330A1
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WO
WIPO (PCT)
Prior art keywords
ratchet
pawl
operating handle
stop
low
Prior art date
Application number
PCT/CN2014/080920
Other languages
English (en)
French (fr)
Inventor
周密
沈迪
尤安顺
曲德刚
李�真
Original Assignee
上海电科电器科技有限公司
浙江正泰电器股份有限公司
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 上海电科电器科技有限公司, 浙江正泰电器股份有限公司 filed Critical 上海电科电器科技有限公司
Priority to CA2916114A priority Critical patent/CA2916114C/en
Priority to US14/901,573 priority patent/US9966208B2/en
Priority to EP14818806.3A priority patent/EP3016127A4/en
Publication of WO2014206330A1 publication Critical patent/WO2014206330A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3005—Charging means
    • H01H3/3021—Charging means using unidirectional coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/34—Driving mechanisms, i.e. for transmitting driving force to the contacts using ratchet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever

Definitions

  • This invention relates to the field of high capacity low voltage switchgear and, more particularly, to a manually operated apparatus for a large capacity low voltage switchgear. Background technique
  • the rotation center of the manual operation handle of the operating mechanism of the domestic switchgear is concentric with the axis that drives the energy storage movement of the mechanism.
  • This structure is convenient and compact; but during the operation of the large-capacity switchgear, manual The operating force will be very large, and even manual operation is difficult.
  • the automatic transfer switch of the single-handle dual energy storage mechanism in the frame class of 1600A, this structure is more convenient and feasible, but in the 4000A, the structure is too large and cannot be operated reliably. Designing a new type of operating handle with reasonable hand operation has become an urgent requirement for product design. Summary of the invention
  • the present invention aims to propose a manual operating device with a small hand operating force.
  • a manual operation device for a low-voltage switchgear is provided.
  • the operation handle is provided with a fixing groove, the fixing groove is matched with the second fixing plate, the second fixing plate is placed in the fixing groove, and in the second A reset torsion spring is disposed between the fixing plate and the fixing groove.
  • the pawl is rotatably mounted on the second fixing plate by the fixing pin, the pawl is rotated around the fixing pin, one end of the first return spring is connected to the top end of the pawl, and the other end of the first return spring is connected to the operating handle, and the operating handle is mounted On the mounting shaft of the operating mechanism of the low voltage switchgear.
  • a rotating shaft is mounted on the mounting plate, and the rotating shaft is a low-voltage electric appliance
  • the shaft of the energy storage mechanism of the switch, the mounting shaft and the rotating shaft are different shafts.
  • the ratchet is mounted on the rotating shaft, and the bottom end of the pawl is caught between the teeth of the ratchet.
  • the bottom of the mounting plate is provided with a stop tweezers, the stop tweezers are rotatably mounted on the mounting plate, the top end of the stop tweezers is caught between the teeth of the ratchet, and one end of the second return spring is connected to the bottom end of the stop tweezers The other end of the second return spring is fixed to the mounting plate.
  • the operating handle and the second fixing plate are provided with corresponding holes, the mounting shaft passes through the operating handle and the hole on the second fixing plate, the operating handle rotates around the mounting shaft, and the reset torsion spring is sleeved on the mounting shaft.
  • the mounting plate has a fixing member that positions the extreme position of the operating handle.
  • the operating handle rotates to move the pawl, and the bottom end of the pawl embedded between the teeth of the ratchet drives the ratchet to rotate around the rotating shaft, and the ratchet rotates over a tooth position, and the bottom end of the pawl is along the edge of the ratchet tooth
  • the first return spring pulls the pawl to rotate about the fixing pin, and the bottom end of the pawl is embedded between the next tooth of the ratchet.
  • the ratchet rotates, pushing the stop tweezers to rotate and stopping the top end of the tweezers from exiting the teeth of the ratchet, the ratchet rotates over a tooth position, the stop tweezers are pulled by the second return spring, and the top end of the stop tweezers is engaged with the ratchet The next tooth.
  • the center of rotation of the operating handle of the manual operating device of the low voltage switchgear of the present invention is not the same as the axis for energizing the mechanism, and the operating handle is rotated about the other axis.
  • Rotating the operating handle to drive the ratchet mounted on the shaft of the energy storage the driving torque is significantly increased, and the corresponding manual operation force can be significantly reduced.
  • the hand feel is easy, Free, safe and reliable.
  • Figure 1 is a view showing the mounting structure of a manual operation device of a low voltage switchgear according to an embodiment of the present invention.
  • FIG. 2 is a block diagram showing the operation handle of a manual operation device of a low voltage switchgear according to an embodiment of the present invention. detailed description
  • the present invention discloses a manual operating device for a low voltage switchgear.
  • 1 is a view showing a mounting structure of a manual operation device of a low voltage switchgear according to an embodiment of the present invention.
  • Figure 2 shows a structural view of the operating handle therein.
  • the operating handle 1 is provided with a fixing groove 13 which is matched in shape and size to the second fixing plate 6.
  • the second fixing plate 6 is placed in the fixing groove 13, and a reset torsion spring 2 is provided between the second fixing plate 6 and the fixing groove 13.
  • Operating handle 1 Mounted on the mounting shaft of the operating mechanism of the low-voltage switchgear. Referring to Fig.
  • the operation handle 1 and the second fixing plate 6 are provided with corresponding holes, and the mounting shaft passes through the holes in the operation handle 1 and the second fixing plate 6.
  • the operating handle 1 is rotated about the mounting shaft, and the reset torsion spring 2 is placed on the mounting shaft.
  • the pawl 5 is rotatably mounted to the second fixed plate 6 by the fixing pin 4.
  • the pawl 5 is rotated about the fixing pin 4, one end of the first return spring 3 is connected to the top end of the pawl 5, and the other end of the first return spring 3 is connected to the operating handle 1.
  • the mounting plate 8 is provided with a rotating shaft 1 1 which is a rotating shaft of the energy storage mechanism of the low-voltage electrical switch, and the mounting shaft and the rotating shaft 1 1 are different shafts.
  • the ratchet 7 is rotatably mounted on the rotary shaft 1 1 , and the bottom end of the pawl 5 is caught between the teeth of the ratchet 7.
  • the bottom of the mounting plate 8 is provided with a stopper tweezers 9, and the stopper tweezers 9 are rotatably mounted on the mounting plate 8, and the rotation shaft of the stopper tweezers 9 is located near the bottom end of the stopper tweezers 9. The top end of the stop pawl 9 is caught between the teeth of the ratchet 7.
  • the pawl 5 is located above the ratchet 7, the bottom end of the pawl 5 is caught between the teeth above the ratchet 7, the stop pawl 9 is located below the ratchet 7, and the tip of the stop pawl 9 is caught under the ratchet 7 between.
  • One end of the second return spring 10 is connected to the bottom end of the stopper tweezers 9, and the other end of the second return spring 10 is fixed to the mounting plate 8.
  • the operating handle 1 When the operating handle 1 is pulled, the operating handle 1 rotates to move the pawl 5, and the bottom end of the pawl 5 embedded between the teeth of the ratchet 7 drives the ratchet 7 to rotate about the rotating shaft 11.
  • the ratchet 7 is rotated past the position of one tooth, and the bottom end of the pawl 5 slides outward along the edge of the tooth of the ratchet 7, which is equivalent to withdrawing from the tooth.
  • the first return spring 3 pulls the pawl 5 about the fixed pin 4, and the bottom end of the pawl 5 is fitted between the next teeth of the ratchet 7.
  • the ratchet 7 rotates, pushes the stop pawl 9 to rotate and the top end of the stop pawl 9 exits between the teeth of the ratchet 7, the ratchet 7 rotates over a tooth position, and the stop pawl 9 is rotated by the second return spring 10 pulls, the top end of the stop pawl 9 snaps into the next tooth of the ratchet 7.
  • the pawl 5 drives the ratchet 7 to rotate to stop the position of the latch 9 to lock the ratchet 7.
  • the ratchet 7 rotates to store energy for the energy storage mechanism. As shown in FIG. 1 and FIG. 2, specifically, the operation handle 1 is rotated counterclockwise, and the pawl 5 rotates accordingly.
  • the ratchet 7 When the arc surface of the pawl 5 is tangent to the arc surface of the ratchet 7, the ratchet 7 is pushed to rotate.
  • the shaft 11 for driving energy storage is rotated to perform an energy storage operation.
  • the ratchet 7 when the ratchet 7 is rotated counterclockwise by the action of the pawl 5, the ratchet 7 pushes the stop pawl 9 to rotate clockwise, and when the ratchet 7 rotates over the angle of one tooth, the stop pawl 9 is at the second return spring. Under the action of 10, the card is re-locked between the teeth of the ratchet 7, and the handle 1 is stopped.
  • the operating handle 1 is reset by the reset torsion spring 2 to prepare for the second energy storage operation.
  • the operating handle 1 is mounted on a shaft that is not concentric with the ratchet 7. According to the illustrated embodiment, the handle 1 is rotated counterclockwise during operation, and the ratchet 7 is driven by the pawl 5 on the operating handle 1 to perform an energy storage operation. Since the ratchet 7 and the operating handle 1 are not mounted on the same shaft, the drive is driven. The torque radius is large, which can generate a large driving torque and achieve a labor-saving effect.
  • the stop tweezers 9, under the action of the second return spring 10, can cause the ratchet 7 to snap into the locking ratchet 7 after each rotation of the tooth 7, ensuring reliable positioning for the next operation.
  • the pawl 5 drives the ratchet wheel 7 after rotating one tooth, and returns to the home position by the first return spring 3, and the next operation can be performed.
  • the operation handle 1 is reset by the reset torsion spring 2 after each operation, and the next operation is prepared.
  • the operating handle 1 and the ratchet 7 are not on the same shaft, so that the ratchet 7 is driven by the pawl 5 mounted on the operating handle 1 (due to the large radius of the ratchet), a large operating force can be generated with a small operation force.
  • Operating torque is possible. Therefore, it is possible to generate a large torque with a small operating force to drive the transfer of the energy storage spindle to realize the energy storage operation, which makes the manual operation easy and convenient.
  • the handle is rotated one at a time to complete the energy storage operation of the energy storage spindle to meet the design requirements.
  • the center of rotation of the operating handle of the manual operating device of the low-voltage switchgear of the present invention is not the same as the axis for energizing the mechanism, and the operating handle is rotated about the other axis. Rotating the operating handle to drive the ratchet mounted on the shaft of the energy storage, the driving torque is significantly increased, and the corresponding manual operation force can be significantly reduced. When the large-capacity switching device is operated by using the operating handle of the structure, the hand feel is easy, Free, safe and reliable.
  • the above embodiments are provided to those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept. The scope of the invention is not limited by the embodiments described above, but should be the maximum range of the innovative features mentioned in the claims.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

一种低压开关电器的手动操作装置，包括：操作手柄（1）上开有固定槽（101），固定槽（101）与第二固定板（6）匹配，第二固定板（6）置于固定槽（101）内，并在第二固定板（6）和固定槽（101）之间设置复位扭簧（2）；棘爪（5）通过固定销（4）转动安装于第二固定板（6）上，棘爪（5）绕固定销（4）转动，第一复位弹簧（3）的一端连接到棘爪（5）的顶端，第一复位弹簧（3）的另一端连接到操作手柄（1）上，操作手柄（1）安装在操作机构的安装轴上；安装板（8）上安装有转轴（11），转轴（11）是储能机构的转轴，安装轴和转轴（11）是不同的轴；棘轮（7）转动安装在转轴（11）上，棘爪（5）的底端卡在棘轮（7）的齿间；安装板（8）的底部安装有止动掣子（9）,止动掣子（9）转动安装在安装板（8）上，止动掣子（9）的顶端卡在棘轮（7）的齿间，第二复位弹簧（10）的一端连接到止动掣子（9）的底端，第二复位弹簧（10）的另一端固定在安装板（8）上。

Description

低压开关电器的手动操作装置 技术领域
本发明涉及大容量低压开关电器领域， 更具体地说， 涉及一种用于大 容量低压开关电器的手动操作装置。 背景技术
在低压电器领域， 当大容量开关电器， 例如： 4000A的自动转换开关、 4000A以上的断路器产品， 由于开关的容量大， 需要有较大的手动操作力 才可能顺利进行储能操作， 实现开关电器的分、 合操作。 在 IEC标准中， 手动操作力通常控制在 250N 以下， 过大的操作力使人工操作困难， 也存 在一定的不安全因素。
目前国内的开关电器的操作机构的手动操作手柄的旋转中心， 都是与 带动机构储能运动的轴同心的， 这种结构比较方便、 结构紧凑； 但在大容 量开关电器的操作过程中， 手动操作力将非常大， 甚至手动操作困难。 在 单手柄双储能机构的自动转换开关中， 在框架等级为 1600A的产品中， 这 种结构还是比较方便可行的， 但在 4000A中， 这种结构手操力过大， 不能 可靠操作， 因此设计一种新型的、 手操力合理的操作手柄成为产品设计的 迫切要求。 发明内容
本发明旨在提出一种手操作力较小的手动操作装置。
根据本发明的一实施例， 提出一种低压开关电器的手动操作装置， 操 作手柄上开有固定槽， 固定槽与第二固定板匹配， 第二固定板置于固定槽 内， 并在第二固定板和固定槽之间设置复位扭簧。 棘爪通过固定销转动安 装于第二固定板上， 棘爪绕固定销转动， 第一复位弹簧的一端连接到棘爪 的顶端， 第一复位弹簧的另一端连接到操作手柄上， 操作手柄安装在低压 开关电器的操作机构的安装轴上。 安装板上安装有转轴， 转轴是低压电器 开关的储能机构的转轴， 安装轴和转轴是不同的轴。 棘轮转动安装在转轴 上， 棘爪的底端卡在棘轮的齿间。 安装板的底部安装有止动掣子， 止动掣 子转动安装在安装板上， 止动掣子的顶端卡在棘轮的齿间， 第二复位弹簧 的一端连接到止动掣子的底端， 第二复位弹簧的另一端固定在安装板上。
操作手柄和第二固定板上开有位置对应的孔， 安装轴穿过操作手柄和 第二固定板上的孔， 操作手柄绕安装轴转动， 复位扭簧套在安装轴上。
安装板上具有固定件， 固定件定位操作手柄的极限位置。
拉动操作手柄， 操作手柄转动带动棘爪移动， 嵌入在棘轮的齿间的棘 爪的底端带动棘轮绕转轴转动， 棘轮转过一个齿的位置， 棘爪的底端沿棘 轮的齿的边缘向外侧滑出， 第一复位弹簧拉动棘爪绕固定销转动， 棘爪的 底端嵌入到棘轮的下一个齿间。 棘轮转动， 推动止动掣子转动且止动掣子 的顶端退出棘轮的齿间， 棘轮转过一个齿的位置， 止动掣子由第二复位弹 簧拉动， 止动掣子的顶端卡入棘轮的下一个齿间。
本发明的低压开关电器的手动操作装置的操作手柄的旋转中心与带动 机构储能的轴不同心， 操作手柄围绕另一轴转动。 旋转操作手柄， 带动安 装在储能的轴上的棘轮， 使驱动力矩明显增大， 相应所需的手动操作力可 以明显减小， 使用该结构的操作手柄操作大容量开关电器时， 手感轻松、 自如、 安全可靠。 附图说明
本发明上述的以及其他的特征、 性质和优势将通过下面结合附图和实 施例的描述而变的更加明显， 在附图中相同的附图标记始终表示相同的特 征， 其中：
图 1揭示了根据本发明的一实施例的低压开关电器的手动操作装置的 安装结构图。
图 2揭示了根据本发明的一实施例的低压开关电器的手动操作装置中 操作手柄的结构图。 具体实施方式
参考图 1和图 2所示， 本发明揭示了一种低压开关电器的手动操作装 置。 其中图 1揭示了根据本发明的一实施例的低压开关电器的手动操作装 置的安装结构图。 图 2揭示了其中的操作手柄的结构图。 如图所示， 操作 手柄 1上开有固定槽 13 , 固定槽 1 3的形状和尺寸与第二固定板 6匹配。 第二固定板 6置于固定槽 13内， 并在第二固定板 6和固定槽 1 3之间设置 复位扭簧 2。 操作手柄 1 安装在低压开关电器的操作机构的安装轴上。 参 考图 2所示， 操作手柄 1和第二固定板 6上开有位置对应的孔， 安装轴穿 过操作手柄 1和第二固定板 6上的孔。 操作手柄 1绕安装轴转动， 复位扭 簧 2套在安装轴上。 棘爪 5通过固定销 4转动安装于第二固定板 6上。 棘 爪 5绕固定销 4转动， 第一复位弹簧 3的一端连接到棘爪 5的顶端， 第一 复位弹簧 3的另一端连接到操作手柄 1上。
安装板 8上安装有转轴 1 1 , 转轴 1 1是低压电器开关的储能机构的转 轴， 安装轴和转轴 1 1是不同的轴。 棘轮 7转动安装在转轴 1 1上， 棘爪 5 的底端卡在棘轮 7的齿间。安装板 8的底部安装有止动掣子 9,止动掣子 9 转动安装在安装板 8上， 止动掣子 9的转轴位于靠近止动掣子 9的底端的 位置。 止动掣子 9的顶端卡在棘轮 7的齿间。 棘爪 5位于棘轮 7的上方， 棘爪 5的底端卡入棘轮 7的上方的齿间 , 止动掣子 9位于棘轮 7的下方， 止动掣子 9的顶端卡在棘轮 7下方的齿间。 第二复位弹簧 1 0的一端连接 到止动掣子 9的底端， 第二复位弹簧 10的另一端固定在安装板 8上。 在 安装板 8上还具有固定件 1 2, 固定件 12定位操作手柄 1 的极限位置。 使 得操作手柄 1不会出现卡死的情况。
拉动操作手柄 1 , 操作手柄 1转动带动棘爪 5移动， 嵌入在棘轮 7的 齿间的棘爪 5的底端带动棘轮 7绕转轴 1 1转动。 棘轮 7转过一个齿的位 置， 棘爪 5的底端沿棘轮 7的齿的边缘向外侧滑出， 相当于从齿间退出。 第一复位弹簧 3拉动棘爪 5绕固定销 4转动， 棘爪 5的底端嵌入到棘轮 7 的下一个齿间。 棘轮 7转动， 推动止动掣子 9转动且止动掣子 9的顶端退 出棘轮 7的齿间， 棘轮 7转过一个齿的位置， 止动掣子 9由第二复位弹簧 10拉动， 止动掣子 9的顶端卡入棘轮 7的下一个齿间。 重复上述的过程， 棘爪 5带动棘轮 7转动而止动掣子 9锁止棘轮 7的位置。 棘轮 7转动给储 能机构储能。 如图 1 和图 2所示， 具体而言， 逆时针旋转操作手柄 1 , 棘 爪 5随之转动， 当棘爪 5的圓弧面与棘轮 7圓弧面相切时， 推动棘轮 7转 动， 由此带动储能用的轴 1 1转动进行储能操作。 同时， 当棘轮 7由棘爪 5 带动作逆时针旋转时， 棘轮 7推动止动掣子 9作顺时针转动， 当棘轮 7转 过一个齿的角度后， 止动掣子 9在第二复位弹簧 1 0 的作用下重新卡在棘 轮 7的齿间 , 停止转动手柄 1 , 操作手柄 1在复位扭簧 2的作用下复位， 为第二次储能操作做准备。
操作手柄 1安装在不与棘轮 7同心的轴上。 按照图示的实施例， 在操 作时逆时针旋转手柄 1 , 由操作手柄 1上的棘爪 5驱动棘轮 7实现储能操 作 ，由于棘轮 7与操作手柄 1不安装在同一个轴上，使驱动力矩半径很大， 可以产生较大的驱动力矩， 达到省力的效果。 止动掣子 9在第二复位弹簧 10的作用下，可使棘轮 7每转过一个齿后卡入锁死棘轮 7,确保可靠定位， 为下一次操作做准备。 棘爪 5驱动棘轮 7转动一个齿以后， 通过第一复位 弹簧 3回复原位， 可进行下一次的操作。 操作手柄 1每操作一次后， 在复 位扭簧 2的作用下复位， 准备下一次操作。
在整个操作中， 操作手柄 1与棘轮 7不在同一个轴上， 使通过操作手 柄 1 上安装的棘爪 5带动棘轮 7 (由于棘轮的半径很大） 能以较小的操作 力产生较大的操作扭矩成为可能。 因此， 可以用较小的操作力产生较大的 力矩来驱动储能主轴的转达实现储能操作， 使手动操作轻松、 方便。 根据 以上的原理， 一次次转动手柄， 使储能主轴完成储能操作， 满足设计的要 求。
本发明的低压开关电器的手动操作装置的操作手柄的旋转中心与带动 机构储能的轴不同心， 操作手柄围绕另一轴转动。 旋转操作手柄， 带动安 装在储能的轴上的棘轮， 使驱动力矩明显增大， 相应所需的手动操作力可 以明显减小， 使用该结构的操作手柄操作大容量开关电器时， 手感轻松、 自如、 安全可靠。 上述实施例是提供给熟悉本领域内的人员来实现或使用本发明的， 熟 悉本领域的人员可在不脱离本发明的发明思想的情况下， 对上述实施例做 出种种修改或变化， 因而本发明的保护范围并不被上述实施例所限， 而应 该是符合权利要求书提到的创新性特征的最大范围。

Claims

权利要求
1. 一种低压开关电器的手动操作装置， 其特征在于， 包括：
操作手柄（ 1 ) , 操作手柄（ 1 )上开有固定槽（ 101 ) , 固定槽（ 101 ) 与第二固定板（6) 匹配， 第二固定板（6) 置于固定槽 （ 101 ) 内， 并在 第二固定板（6)和固定槽 （ 101 )之间设置复位扭簧（2) ； 棘爪（5)通 过固定销 （4)转动安装于第二固定板（6) 上， 棘爪（5) 绕固定销 （4) 转动， 第一复位弹簧（3) 的一端连接到棘爪（5) 的顶端， 第一复位弹簧
(3)的另一端连接到操作手柄（ 1 )上， 操作手柄（ 1 )安装在低压开关电 器的操作机构的安装轴上；
安装板（ 8 ) , 安装板（ 8 )上安装有转轴（ 11 ) , 转轴（ 11 )是低压 电器开关的储能机构的转轴， 所述安装轴和转轴 （ 11 )是不同的轴， 棘轮
(7)转动安装在转轴 （ 11 )上， 棘爪（5) 的底端卡在棘轮（7) 的齿间， 安装板（ 8 )的底部安装有止动掣子（ 9 ) , 止动掣子（ 9 )转动安装在安装 板（8)上，止动掣子（9)的顶端卡在棘轮（7)的齿间， 第二复位弹簧（ 10) 的一端连接到止动掣子（9)的底端， 第二复位弹簧（ 10)的另一端固定在 安装板（8) 上。
2. 如权利要求 1所述的低压开关电器的手动操作装置， 其特征在于， 所述操作手柄 （1 ) 和第二固定板（6) 上开有位置对应的孔， 所述安装轴 穿过操作手柄（ 1 )和第二固定板（6)上的孔， 操作手柄（ 1 )绕安装轴转 动， 所述复位扭簧（2)套在安装轴上。
3. 如权利要求 2所述的低压开关电器的手动操作装置， 其特征在于， 所述安装板（8) 上具有固定件 （ 12) , 固定件 （ 12) 定位操作手柄 （ 1 ) 的极限位置。
4. 如权利要求 3所述的低压开关电器的手动操作装置， 其特征在于, 拉动操作手柄（ 1 ) , 操作手柄（ 1 )转动带动棘爪（5)移动， 嵌入在棘轮 ( 7) 的齿间的棘爪（5) 的底端带动棘轮（7) 绕转轴 （ 11 ) 转动， 棘轮 (7)转过一个齿的位置， 棘爪（5)的底端沿棘轮（7)的齿的边缘向外侧 滑出， 第一复位弹簧（3)拉动棘爪（5) 绕固定销 （4)转动， 棘爪（5) 的底端嵌入到棘轮（7) 的下一个齿间。
5. 如权利要求 3所述的低压开关电器的手动操作装置， 其特征在于， 棘轮（7)转动， 推动止动掣子（9)转动且止动掣子（9)的顶端退出棘轮 (7)的齿间， 棘轮（7)转过一个齿的位置， 止动掣子（9) 由第二复位弹 簧（10)拉动， 止动掣子 （9) 的顶端卡入棘轮（7) 的下一个齿间。
PCT/CN2014/080920 2013-06-28 2014-06-27 低压开关电器的手动操作装置 WO2014206330A1 (zh)

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