WO2020143182A1 - 一种快夹头组件 - Google Patents

一种快夹头组件 Download PDF

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Publication number
WO2020143182A1
WO2020143182A1 PCT/CN2019/092557 CN2019092557W WO2020143182A1 WO 2020143182 A1 WO2020143182 A1 WO 2020143182A1 CN 2019092557 W CN2019092557 W CN 2019092557W WO 2020143182 A1 WO2020143182 A1 WO 2020143182A1
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WIPO (PCT)
Prior art keywords
chuck
ball
collet
contact
quick
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PCT/CN2019/092557
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English (en)
French (fr)
Inventor
李挺进
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浙江博来工具有限公司
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Application filed by 浙江博来工具有限公司 filed Critical 浙江博来工具有限公司
Publication of WO2020143182A1 publication Critical patent/WO2020143182A1/zh

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    • 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
    • B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G3/00—Attaching handles to the implements
    • B25G3/02—Socket, tang, or like fixings
    • B25G3/12—Locking and securing devices
    • B25G3/20—Locking and securing devices comprising clamping or contracting means acting concentrically on the handle or socket
    • B25G3/22—Chucks

Definitions

  • the invention belongs to the technical field of electric tools, and in particular relates to a quick chuck assembly.
  • the existing power tools are generally equipped with multiple tool heads, which are suitable for different occasions.
  • Each tool head is disassembled and assembled through a quick clamp assembly.
  • the existing quick clamp assembly exists when it is used The following defects: Due to its structural design, most of them require two hands to operate, one hand is used to open the clamping slot, and the other hand is used to put the tool head into the clamping slot, which is less convenient to replace.
  • the present invention provides a quick chuck assembly according to the deficiencies of the prior art.
  • the quick chuck assembly is easy to install and disassemble, easy to operate, and simple in structure.
  • a quick chuck assembly includes a connecting end and a chuck connected to the connecting end.
  • a limit ring is provided on an inner cavity wall of the chuck, and an elastic element is provided in the inner cavity of the chuck. One end of the elastic element is in contact with the connecting end, and the other end is in contact with the limiting ring.
  • the side wall of the chuck close to the limiting ring is provided with a round hole, and the inner part of the round hole is movable
  • the sleeve is provided with a ball, the diameter of the ball is greater than the depth of the round hole, the side of the elastic element is in contact with the ball, so that the ball moves out of the inner cavity of the chuck, and the outer sleeve of the chuck is provided for control
  • a control assembly that clamps or loosens the collet, and the control assembly snaps into the ball.
  • the elastic element includes a first spring and an annular retaining ring connected to one end of the first spring, the other end of the first spring abuts against the connecting end, and the other end of the annular retaining ring One end is in contact with the limit ring, and the side is in contact with the ball to push the ball out of the inner cavity of the chuck.
  • control assembly includes an operation sleeve body and a second spring, the second spring is disposed between the operation sleeve body and the chuck, a protrusion is provided on the inner wall of the operation sleeve body, and the second spring One end is in contact with the bump, the other end is in contact with the connecting end, and the bump is in contact with the ball.
  • the protrusion is interference fit with the inner wall of the operation sleeve body.
  • the convex block is convexly formed by the inner wall ring of the operation sleeve body.
  • the chuck is provided with an annular buckle that restricts the downward movement of the operation sleeve body.
  • an outer fitting groove is provided on the outer wall of the chuck, and the ring-shaped retaining ring is provided in the outer fitting groove.
  • the ring-shaped retaining ring is integrally formed with the collet.
  • a quick chuck assembly of the present invention is provided with an elastic element in the inner cavity of the chuck.
  • the elastic element is reset, and then The ball embedded on the side wall of the chuck is ejected outward, and the ball moves in the direction of the control component, which is used to catch the control component and slide down.
  • the chuck can be kept in a loose state.
  • the quick chuck assembly of the present invention has a simple structure, convenient installation and removal of the tool head, relatively labor-saving use, and convenient operation.
  • FIG. 1 is a schematic structural diagram of Embodiment 1 of the present invention.
  • Embodiment 2 is a schematic structural diagram of Embodiment 2 of the present invention.
  • a quick chuck assembly includes a connection head 1 and a chuck 2 connected to the connection head 1.
  • the other end of the connection head 1 can be connected to a handle, a machine head and other components.
  • a limit ring is provided on the inner cavity wall of the chuck 2
  • an elastic element is provided in the inner cavity of the chuck, one end of the elastic element is in contact with the connection head 1, and the other end is in contact with the limit ring Abutting
  • the side wall of the chuck close to the limit ring is provided with a round hole
  • the inner part of the round hole is provided with a ball 3
  • the diameter of the ball 3 is greater than the depth of the round hole, to ensure that the ball 3 is partially exposed
  • the side of the elastic element is in contact with the ball 3 to push the ball 3 to the outside
  • the outer sleeve of the chuck 2 is provided with an outer sleeve for controlling the clamping or unclamping of the chuck 2
  • the control assembly in the non-working state, the ball
  • the elastic element is reset, its side is in contact with the ball 3, the ball 3 is ejected outward, and the ball 3 moves outward to block the control assembly and prevent the control assembly Slide down to ensure that the chuck 2 is always in a loosened state.
  • the tool head 4 needs to be installed, directly put the tool head 4 into the chuck 2 and squeeze the elastic element upward. The elastic element is compressed, and then the ball 3 The ball 3 moves into the inner cavity when the contact is disengaged.
  • the quick chuck assembly of the present invention has a simple structure, which ensures that the chuck 2 can be released when the tool head 4 is pulled out. At 4 o'clock, it can be inserted directly without manual release of the chuck 2. The operation is simple, convenient and labor-saving.
  • the elastic element includes a first spring 7 and an annular retaining ring 8 connected to one end of the first spring 7, and the other end of the first spring 7 abuts the connecting end 1 when the tool head 4 When pulling out, the first spring 7 provides quick recovery.
  • the ring-shaped retaining ring 8 abuts the limit ring on the side wall of the inner cavity of the chuck 2, and its side abuts the ball 3, and pushes the ball 3 out In the inner cavity, the ball 3 moves outward to catch the control assembly, thereby preventing the control assembly from sliding downward, and ensuring that the chuck 2 is always in a released state.
  • the control assembly includes an operation sleeve body and a second spring 5, the second spring 5 is disposed between the operation sleeve body and the chuck 2, and a protrusion 6 is provided on the inner wall of the operation sleeve body.
  • the block 6 can be designed separately from the body of the operation sleeve. At this time, the protrusion and the inner wall of the body of the operation sleeve are in interference fit.
  • the protrusion 6 can also be integrally formed with the body of the operation sleeve.
  • the inner wall of the body of the operation sleeve is convexly formed.
  • the second spring 5 One end is in contact with the bump 6 and the other end is in contact with the connecting end 1.
  • a ring buckle 9 is convexly formed on the outer wall of the chuck 2 in order to limit the slippage of the operating sleeve body.
  • connection between the chuck 2 and the connection head 1 is provided with a step, and the outer wall of the chuck 2 is provided with an external insertion groove.
  • the ring-shaped retaining ring 9 is embedded in the outer recessed groove.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Abstract

一种快夹头组件，包括连接端头（1）及与连接端头连接的夹头（2），所述夹头的内腔壁上设有限位环，所述夹头的内腔内设有弹性元件，所述夹头靠近限位环的侧壁上开设有圆孔，所述圆孔的内部活动套设有滚珠（3），所述滚珠直径大于圆孔的深度，所述弹性元件抵接滚珠，使滚珠向外移动，所述夹头的外部套设有控制组件，所述控制组件与滚珠卡接，阻止了控制组件向下滑移，保证夹头一直处于松开状态，当需要安装工具头（4）时，只需将工具头直接放入夹头内，按压弹性元件，当滚珠卡入工具头上的凹槽时，控制组件下滑，夹头既夹紧工具头。该快夹头组件结构简单，安装和拆卸工具头方便，省力，操作便捷。

Description

一种快夹头组件 技术领域
本发明属于电动工具技术领域，具体涉及一种快夹头组件。
背景技术
现有的电动工具，为增加电动工具的适用性，一般配有多个工具头，配合不同场合适用，各工具头之间通过快夹组件进行拆装，现有的快夹组件在使用时存在下述缺陷：由于其结构设计，大多需要双手进行操作，一只手用于开启夹槽，另一只手用于将工具头放入夹槽中，更换较不方便。
发明内容
本发明根据现有技术的不足提供一种快夹头组件，该快夹头组件安装和拆卸方便，操作简便，结构简单。
为实现上述目的，本发明提供的技术方案如下：
一种快夹头组件，包括连接端头及与所述连接端头连接的夹头，所述夹头的内腔壁上设有限位环，所述夹头的内腔内设置有弹性元件，所述弹性元件的一端与所述连接端头抵接，另一端与所述限位环抵接，所述夹头靠近限位环的侧壁上开设有圆孔，所述圆孔的内部活动套设有滚珠，所述滚珠直径大于圆孔的深度，所述弹性元件的侧面与所述滚珠抵接，使滚珠向外移出夹头的内腔，所述夹头的外部套设有用于控制夹头夹紧或松开的控制组件，所述控制组件与所述滚珠卡接。
进一步的，所述弹性元件包括第一弹簧及与第一弹簧的一端连接的环状挡圈，所述第一弹簧的另一端与所述连接端头抵接，所述环状挡圈的另一端与所述限位环抵接，侧面与所述滚珠抵接，将滚珠顶出夹头的内腔。
进一步的，所述控制组件包括操作套本体和第二弹簧，所述第二弹簧设置于操作套本体和夹头之间，所述操作套本体内壁上设有凸块，所述第二弹簧的一端与凸块抵接，另一端与连接端头抵接，所述凸块与所述滚珠抵接。
作为优选的，所述凸块与操作套本体内壁过盈配合。
作为另一优选的，所述凸块是由操作套本体内壁环凸成型的。
进一步的，所述夹头上设有限制操作套本体向下滑移的环状扣环。
作为优选的，所述夹头的外壁上设置有外嵌槽，所述环状扣环设置于外嵌槽内。
作为另一优选的，所述环状扣环与所述夹头一体成型。
相对于现有技术，本发明的有益效果为：本发明的一种快夹头组件，在夹头的内腔设有弹性元件，当夹头中的工具头拔出后，弹性元件复位，然后将夹头侧壁上嵌设的滚珠向外顶 出，滚珠向控制组件方向移动，用于卡住控制组件向下滑移，此时可以保证夹头一直处于松开状态，当需要安装工具头时，只需将工具头直接放入夹头内，按压弹性元件，弹性元件被压缩，当滚珠卡入工具头连杆上的凹槽时，控制组件向下移动，使夹头夹紧工具头，完成安装，本发明的快夹头组件结构简单，安装和拆卸工具头方便，使用起来比较省力，操作便捷。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例1的结构示意图。
图2为本发明实施例2的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1。
如图1所示一种快夹头组件，包括连接端头1及与所述连接端头1连接的夹头2，连接端头1的另一端可连接握柄、机头等构件，所述夹头2的内腔壁上设有限位环，所述夹头的内腔内设置有弹性元件，所述弹性元件的一端与所述连接端头1抵接，另一端与所述限位环抵接，所述夹头靠近限位环的侧壁上开设有圆孔，所述圆孔的内部套设有滚珠3，所述滚珠3直径大于圆孔的深度，保证滚珠3的局部外露于夹头的内腔内，所述弹性元件的侧面与所述滚珠3抵接，将滚珠3向外部顶出，所述夹头2的外部套设有用于控制夹头2夹紧或松开的控制组件，在未工作状态下，所述滚珠3与控制组件卡接，阻止控制组件向下移动。
本发明的快夹头组件，当工具头4拔出后，弹性元件复位，其侧面与滚珠3抵接，将滚珠3向外顶出，滚珠3向外移动从而卡住控制组件，阻止控制组件向下滑移，保证夹头2一直处于松开状态，当需要安装工具头4时，直接将工具头4放入夹头2内，向上挤压弹性元件，弹性元件被压缩，则与滚珠3脱离接触，滚珠3向内腔内移动，当工具头4连杆上的凹槽移动至滚珠3时，滚珠3卡入凹槽内，则控制组件失去滚珠3的抵制，向下滑移，使夹头2夹紧工具头4，完成工具头2的安装，本发明的快夹头组件结构简单，保证了在工具头4拔出状态时，夹头2能处于松开状态，当安装工具头4时，直接插入，不需要人工先松开夹 头2，操作起来简单、方便，还省力。
其中，所述弹性元件包括第一弹簧7及与第一弹簧7的一端连接的环状挡圈8，所述第一弹簧7的另一端与所述连接端头1抵接，当工具头4拔出时，第一弹簧7提供较快的恢复性，环状挡圈8与夹头2内腔侧壁上的限位环抵接，其侧面与滚珠3抵接，并将滚珠3顶出内腔，滚珠3向外移动卡住控制组件，从而阻止控制组件向下滑移，保证夹头2一直处于松开状态。
其中，所述控制组件包括操作套本体和第二弹簧5，所述第二弹簧5设置于操作套本体和夹头2之间，所述操作套本体内壁上设有凸块6，所示凸块6可以与操作套本体分离设计，此时凸块与操作套本体内壁过盈配合，凸块6也可以与操作套本体一体成型，由操作套本体内壁环凸成型，所述第二弹簧5的一端与凸块6抵接，另一端与连接端头1抵接，当拔出工具头4时，滚珠3被环状挡圈8顶出，滚珠3向外移动，此时滚珠3与凸块6的下端卡接，阻止操作套本体向下滑移，保证了夹头2一直处于松开状态。
进一步的，所述夹头2的外壁上环凸成型有环状扣环9，是为了限制操作套本体滑移，安装快夹头组件时，先将控制组件从夹头2的上端套进，再将夹头2与连接端头1连接。
实施例2。
本实施例与实施例1的区别在于：如图2所示，所述夹头2与连接端头1的连接处设置有台阶，所述夹头2的外壁上设置有外嵌槽，所述环状扣环9嵌设于外嵌槽内，此种结构安装时需要将控制组件从夹头2远离连接端头1的一端套进，然后再安装环状扣环9，其他结构同实施例1，此处不再累述。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (8)

  1. 一种快夹头组件，其特征在于：包括连接端头及与所述连接端头连接的夹头，所述夹头的内腔壁上设有限位环，所述夹头的内腔内设置有弹性元件，所述弹性元件的一端与所述连接端头抵接，另一端与所述限位环抵接，所述夹头靠近限位环的侧壁上开设有圆孔，所述圆孔的内部活动套设有滚珠，所述滚珠直径大于圆孔的深度，所述弹性元件的侧面与所述滚珠抵接，使滚珠向外移出夹头的内腔，所述夹头的外部套设有用于控制夹头夹紧或松开的控制组件，所述控制组件与所述滚珠卡接。
  2. 如权利要求1所述的快夹头组件，其特征在于：所述弹性元件包括第一弹簧及与第一弹簧的一端连接的环状挡圈，所述第一弹簧的另一端与所述连接端头抵接，所述环状挡圈的另一端与所述限位环抵接，侧面与所述滚珠抵接，将滚珠顶出夹头的内腔。
  3. 如权利要求1所述的快夹头组件，其特征在于：所述控制组件包括操作套本体和第二弹簧，所述第二弹簧设置于操作套本体和夹头之间，所述操作套本体内壁上设有凸块，所述第二弹簧的一端与凸块抵接，另一端与连接端头抵接，所述凸块与所述滚珠抵接。
  4. 如权利要求3所述的快夹头组件，其特征在于：所述凸块与操作套本体内壁过盈配合。
  5. 如权利要求3所述的快夹头组件，其特征在于：所述凸块是由操作套本体内壁环凸成型的。
  6. 如权利要求3所述的快夹头组件，其特征在于：所述夹头上设有限制操作套本体向下滑移的环状扣环。
  7. 如权利要求6所述的快夹头组件，其特征在于：所述夹头的外壁上设置有外嵌槽，所述环状扣环设置于外嵌槽内。
  8. 如权利要求6所述的快夹头组件，其特征在于：所述环状扣环与所述夹头一体成型。
PCT/CN2019/092557 2019-01-08 2019-06-24 一种快夹头组件 WO2020143182A1 (zh)

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CN201102215Y (zh) * 2007-06-20 2008-08-20 仲展实业有限公司 结构改良的快速接头
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