WO2013020335A1 - 可变换钳柄角度的夹紧工具 - Google Patents

可变换钳柄角度的夹紧工具 Download PDF

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Publication number
WO2013020335A1
WO2013020335A1 PCT/CN2011/082154 CN2011082154W WO2013020335A1 WO 2013020335 A1 WO2013020335 A1 WO 2013020335A1 CN 2011082154 W CN2011082154 W CN 2011082154W WO 2013020335 A1 WO2013020335 A1 WO 2013020335A1
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Prior art keywords
handle
caliper
angle
clamp handle
shank
Prior art date
Application number
PCT/CN2011/082154
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English (en)
French (fr)
Inventor
张磊
Original Assignee
润联(天津)五金工具有限公司
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 润联(天津)五金工具有限公司 filed Critical 润联(天津)五金工具有限公司
Priority to EP11870548.2A priority Critical patent/EP2682233B1/en
Publication of WO2013020335A1 publication Critical patent/WO2013020335A1/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/14Locking means
    • B25B7/16Locking means combined with means for tightening the operating arms of jaws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/18Adjusting means for the operating arms

Definitions

  • the invention belongs to the field of hardware tools, and in particular relates to a clamping tool capable of changing the angle of the shank.
  • the technical problem to be solved by the present invention is to provide a clamping tool which has a simple structure, can improve the efficiency of construction work, and is easy to operate and labor-saving.
  • a clamping tool capable of changing the angle of the caliper handle, comprising a working head, a caliper handle and an adjusting mechanism connecting the working head and the tong handle, the working head is a clamp head
  • the clamp head is provided with a replaceable die
  • the clamp handle includes a left clamp handle and a right clamp handle
  • the clamp handle is provided with a ratchet type stop mechanism, and the ratchet type
  • the retracting mechanism comprises: a ratchet mounted on the upper shank of the right caliper handle and a ratchet mounted on the left caliper handle; the right caliper handle including an upper shank and a lower shank movably connected thereto by a rotating shaft,
  • a caliper angle adjustment mechanism is mounted on the right caliper handle.
  • the shank angle adjusting mechanism comprises: a slider assembly, a guiding pin, a compression spring and a positioning pin for adjusting the dominant angle of the right caliper, the slider assembly is slid by the main slider, the wire rope and the wrench a block assembly, the slider assembly is disposed in the U-shaped groove of the lower shank of the right caliper handle, and is movably connected to the lower shank by a guide pin, the locating pin is mounted on the upper shank of the right caliper, the compression spring The set is in the wire rope, one end of the compression spring is connected to the main slider, and the other end is abutted on the spring plate.
  • the main slider and the wrench slider are in the shape of a right caliper and are mounted in the right caliper handle.
  • the main slider and the arbor slider are provided with a guiding groove for sliding under the guiding pin shaft.
  • the lower part of the outer end of the slider is provided with an adjustment handle suitable for human hand, and the upper part of the main slider is provided with a groove for adjusting the angle of the right caliper.
  • the lower end of the upper shank of the right caliper handle is formed to prevent the caliper from opening a large angle.
  • the side of the lower jaw of the right caliper handle is provided with a circular arc groove for avoiding the force of the guide pin shaft.
  • the lower jaw handle of the right caliper handle is formed with an outwardly bent portion.
  • the present invention employs the above-described technical solution, that is, the ratchet-type retaining mechanism and the caliper-angle adjusting mechanism on the caliper handle, the adjustment operation of the caliper opening and closing angle can be realized.
  • the angle of the clamping handle can be easily changed by simply pulling the handle.
  • the clamping operation is not only labor-saving, but also improves the efficiency of the installation and construction, and the clamping handle is designed at a certain angle, through the angle adjustment mechanism of the clamping handle, Avoid the touch of your hands during work.
  • Figure 1 is a schematic view of the structure of the present invention
  • Figure 2 is a schematic view showing the initial state of the opening of the present invention
  • FIG. 3 is a schematic view showing a state after adjusting the angle of the caliper at the initial stage of the present invention
  • FIG. 4 is a schematic view showing a state in which the angle of the caliper is adjusted when the hands are about to touch during the working process of the present invention.
  • a clamping tool capable of changing the angle of the shank comprising a working head 1, a shank 2 and an adjusting mechanism 3 connecting the working head and the tong handle, the working head is passed by the nipper 1-1
  • the cover plate 1-2 is connected to the positioning shaft 1-3, and a replaceable die 1-4 is mounted on the caliper head, the caliper handle 2 including a left caliper handle 2-1 and a right caliper handle 2-2.
  • the caliper handle is provided with a ratchet type stop mechanism 4 and a caliper angle adjustment mechanism 5, and the right caliper handle 2-2 includes an upper caliper 2-2a and a lower caliper 2 connected thereto by a rotary shaft 6 2 b.
  • the ratchet type stop mechanism 4 includes: a ratchet plate 4-2 mounted on the upper shank upper gripper 2-2a and a ratchet 4-1 mounted on the left caliper handle.
  • a caliper angle adjustment mechanism 5 is attached to the right caliper.
  • the shank angle adjustment mechanism includes: a slider assembly, a guide pin 5-2, a compression spring 5.3, and a locating pin 5-4 for a right nipper dominant angle adjustment,
  • the slider assembly is composed of a main slider 5-1, a wire rope 5-6 and a wrench slider 5-5.
  • the slider assembly is disposed in the U-shaped groove of the lower clamp handle of the right caliper handle, and passes through the guide pin shaft and the lower clamp handle.
  • the movable pin is mounted on the upper shank of the right caliper handle, and the compression spring is set in the wire rope, one end is connected with the main slider, and the other end is abutted on the spring plate 5-7.
  • the main slider 5-1 and the trigger slider 5-5 are in the shape of a right caliper and are mounted in the right caliper handle, and the main slider and the wrench slider are formed on the guide pin shaft.
  • the sliding guide groove 5-la, the lower part of the outer end of the slider is provided with an adjustment handle 5-lb suitable for manual movement, and the upper part of the main slider is provided with four slots 5-lc for adjusting the angle of the right caliper.
  • the lower end of the upper shank of the right caliper handle is formed to prevent the caliper from opening a large angle of the bending portion 2-3.
  • the side surface of the lower caliper of the right caliper handle is provided with a circular arc groove 2-4 for avoiding the force of the guide pin shaft, and the lower shank of the right caliper handle is provided with an outwardly bent portion.
  • the working principle of the invention is:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Clamps And Clips (AREA)
  • Sheet Holders (AREA)

Abstract

一种可变换钳柄角度的夹紧工具,包括工作头(1)、钳柄(2)及调节结构(3),工作头(1)是由钳头(1-1)通过盖板(1-2)和定位轴(1-3)连接构成,钳头(1-1)上装有可更换的口模(1-4),钳柄(2)包括左钳柄(2-1)和右钳柄(2-2),钳柄(2)上装有棘轮式止退机构(4),棘轮式止退机构(4)包括:安装在右钳柄(2-2)上部钳柄(2-2a)的棘板(4-2)及安装在左钳柄(2-1)上的棘轮(4-1);右钳柄(2-2)包括上部钳柄(2-2a)和通过旋转轴(6)与其活动连接的下部钳柄(2-2b),在右钳柄(2-2)上安装有钳柄角度调整机构(5)。本夹紧工具工作时,只需扳动手柄即可轻松改变钳柄角度,夹紧操作不仅非常省力、还提高了安装施工的效率,而且钳柄(2)设计成一定的角度,通过钳柄角度调整机构(5),避免在工作时双手碰触的现象。

Description

可变换钳柄角度的夹紧工具 技术领域
本发明属于五金工具领域, 特别是涉及一种可变换钳柄角度的夹紧工 具。
背景技术
公知的 PVC管、 PEX管及铝塑复合管被广泛用作供水、 供油和供气的 输送管道, 在安装此类管道时必须使用专用的夹紧钳才能安装牢固。 众所 周知, 尽管目前巿场上出现了可用于多种规格管道夹紧的工具, 其仅适用 于小规格管道夹紧操作, 当用于大规格管道的夹紧连接时, 不仅非常费力, 浪费作业时间, 降低施工效率, 而且给施工人员带来诸多不便。 因此, 设 计一种结构合理、 操作简单且用于大规格管道连接且省力的夹紧工具已成 为五金业急需解决的课题。
发明内容
本发明所要解决的技术问题是提供一种结构简单、 可提高施工作业效 率且便于操作、 省力的可变换钳柄角度的夹紧工具。
为解决上述技术问题所釆取的技术方案是: 一种可变换钳柄角度的夹 紧工具, 包括工作头、 钳柄及连接工作头和钳柄的调节机构, 所述工作头 是由钳头通过盖板和定位轴连接构成, 在钳头上装有可更换的口模, 所述 钳柄包括左钳柄和右钳柄, 所述钳柄上装有棘轮式止退机构, 所述棘轮式 止退机构包括: 安装在右钳柄上部钳柄的棘板及安装在左钳柄上的棘轮; 所述右钳柄包括上部钳柄和通过旋转轴与其活动连接的下部钳柄, 在所述 右钳柄上安装有钳柄角度调整机构。
其中, 所述钳柄角度调整机构包括: 滑块组件、 导向销轴、 压缩弹簧 和用于右钳柄主导角度调整的定位销轴, 所述滑块组件由主滑块、 钢丝绳 和扳把滑块组成, 滑块组件设置于右钳柄下部钳柄的 U型槽内, 通过导向 销轴与下部钳柄活动连接, 所述定位销轴安装在右钳柄上部钳柄上, 所述 压缩弹簧套装在钢丝绳中, 压缩弹簧一端与主滑块连接, 另一端抵于弹簧 托板上。
所述主滑块和扳把滑块呈右钳柄随型形状并安装于右钳柄内, 主滑块 和扳把滑块上制有用于其在导向销轴作用下滑动的导向槽, 扳把滑块外端 下部制有适宜人手扳动的调节手柄, 主滑块上部制有便于调整右钳柄角度 的凹槽。
所述右钳柄上部钳柄的下端制成防止钳柄张开过大角度的挡弯部。 所述右钳柄下部钳柄的侧面制有避免导向销轴产生作用力的圆弧四 槽。
所述右钳柄下部钳柄制有向外折弯部。
本发明具有的优点和积极效果是: 由于本发明釆用上述技术方案, 即 通过钳柄上的棘轮式止退机构和钳柄角度调整机构, 可实现钳柄张开及闭 合角度的调整操作。 本夹紧工具工作时, 只需扳动手柄即可轻松改变钳柄 角度, 夹紧操作不仅非常省力、 提高了安装施工的效率, 而且钳柄设计成 一定的角度, 通过钳柄角度调节机构, 避免了在工作时双手碰触的现象。 附图说明
图 1是本发明的结构示意图; 图 2是本发明打开初始状态示意图;
图 3是本发明刚要工作初期调整钳柄角度后的状态示意图;
图 4是本发明工作过程中双手即将碰触时调整钳柄角度的状态示意图。 图中: 1、 工作头; 1 -1钳头; 1-2、 盖板; 1 - 3、 定位轴; 1 -4、 口模; 2、 钳柄; 2-1、 左钳柄; 2-2、 右钳柄; 2-2a、 上部钳柄; 2_2b、 下部 钳柄; 2- 3、 挡弯部; 2-4、 圆弧凹槽; 3、 调节机构; 4、 棘轮式止退 机构; 4-1、 棘轮; 4-2、 棘板; 5、 钳柄角度调整机构; 5-1、 主滑块; 5_l a、 导向槽; 5_l b、 调节手柄; 5_l c、 凹槽; 5-2、 导向销轴; 5-3、 压缩弹簧; 5-4、 定位销轴; 5-5、 扳把滑块; 5-6、 钢丝绳; 5-7、 弹 簧托板; 6、 旋转轴; 8、 紧固件; 9、 管材; 1 0、 管接头。
具体实施方式
为能进一步了解本发明的发明内容、特点及功效, 兹例举以下实施例, 并配合附图详细说明如下:
请参阅图 1 -图 4, 可变换钳柄角度的夹紧工具, 包括工作头 1、 钳柄 2 及连接工作头和钳柄的调节机构 3,所述工作头是由钳头 1-1通过盖板 1 -2 和定位轴 1 -3连接构成, 在钳头上装有可更换的口模 1 -4, 所述钳柄 2包 括左钳柄 2-1和右钳柄 2-2。 所述钳柄上装有棘轮式止退机构 4和钳柄角 度调整机构 5, 所述右钳柄 2-2包括上部钳柄 2-2 a和通过旋转轴 6与其活 动连接的下部钳柄 2-2 b。 所述棘轮式止退机构 4包括: 安装在右钳柄上部 钳柄 2-2a上的棘板 4-2及安装在左钳柄上的棘轮 4-1。在所述右钳柄上安 装有钳柄角度调整机构 5。 所述钳柄角度调整机构包括: 滑块组件、 导向 销轴 5-2、压缩弹簧 5- 3和用于右钳柄主导角度调整的定位销轴 5-4, 所述 滑块组件由主滑块 5-1、 钢丝绳 5-6和扳把滑块 5-5组成, 滑块组件设置 于右钳柄下部钳柄的 U型槽内, 通过导向销轴与下部钳柄活动连接, 所述 定位销轴安装在右钳柄上部钳柄上, 所述压缩弹簧套装在钢丝绳中, 一端 与主滑块连接, 另一端抵于弹簧托板 5-7上。
所述主滑块 5-1和扳把滑块 5-5呈右钳柄随型形状并安装于右钳柄内, 主滑块和扳把滑块上制有用于其在导向销轴作用下滑动的导向槽 5-l a, 扳 把滑块外端下部制有适宜人手扳动的调节手柄 5-l b, 主滑块上部制有便于 调整右钳柄角度的四槽 5-l c。
所述右钳柄上部钳柄的下端制成防止钳柄张开过大角度的挡弯部 2- 3。
所述右钳柄下部钳柄的侧面制有避免导向销轴产生作用力的圆弧四槽 2-4, 在所述右钳柄下部钳柄制有向外折弯部。
本发明的工作原理为:
请参阅图 2、 图 3和图 4, 当夹紧工具处于初始打开状态时 (图 2 ), 由于钳柄 2张开的角度过大, 如果没有角度调整机构, 手握钳柄需要施加 很大的力才能使钳柄闭合,此时推动调节手柄 5-l b,将扳把滑块 5-5拉下, 在钢丝绳 5-6的带动下, 使主滑块 5-1脱离和定位销轴 5-4的侧面接触, 定位销轴正好落在右钳柄和主滑块的 ffl槽处, 即可旋转右钳柄使其开口角 度减小 (图 3 )。 此时, 即可轻松对旋转角度后的钳柄施加作用力, 通过棘 轮步进作用, 将钳柄闭合。 当钳柄闭合至两手要碰触时 (图 4, Α位置), 向外转动右钳柄, 此时在压缩弹簧 5- 3的作用下, 主滑块向上弹起, 定位 销轴和主滑块侧面接触, 又使钳柄张开了一定的角度 (图 4, B位置), 再 继续施加作用力, 紧固件 8在夹紧作用力下, 使管接头 1 0和管材 9紧密 合, 即可完成一次连接工作。 本夹紧工具操作简单, 省时省力, 提高了 装施工的效率。

Claims

杈利要求书
1. 一种可变换钳柄角度的夹紧工具, 包括工作头、 钳柄及连接工作头 和钳柄的调节机构, 所述工作头是由钳头通过盖板和定位轴连接构成, 在 钳头上装有可更换的口模, 所述钳柄包括左钳柄和右钳柄, 其特征在于: 所述钳柄上装有棘轮式止退机构, 所述棘轮式止退机构包括: 安装在右钳 柄上部钳柄的棘板及安装在左钳柄上的棘轮; 所述右钳柄包括上部钳柄和 通过旋转轴与其活动连接的下部钳柄, 在所述右钳柄上还安装有钳柄角度 调整机构。
2. 根据权利要求 1所述的可变换钳柄角度的夹紧工具, 其特征在于: 所述钳柄角度调整机构包括: 滑块组件、 导向销轴、 压缩弹簧和用于右钳 柄主导角度调整的定位销轴, 所述滑块组件由主滑块、 钢丝绳和扳把滑块 组成, 滑块组件设置于右钳柄下部钳柄的 u型槽内, 通过导向销轴与下部 钳柄活动连接, 所述定位销轴安装在右钳柄上部钳柄上, 所述压缩弹簧套 装在钢丝绳中, 一端与主滑块连接, 另一端抵于弹簧托板上。
3. 根据权利要求 2所述的一种可变换钳柄角度的夹紧工具, 其特征在 于: 所述主滑块和扳把滑块呈右钳柄随型形状并安装于右钳柄内, 主滑块 和扳把滑块上制有用于其在导向销轴作用下滑动的导向槽, 扳把滑块外端 下部制有适宜人手扳动的调节手柄, 主滑块上部制有便于调整右钳柄角度 的凹槽。
4. 根据权利要求 1所述的一种可变换钳柄角度的夹紧工具, 其特征在 于: 所述右钳柄上部钳柄的下端制成防止钳柄张开过大角度的挡弯部。
5. 根据权利要求 4所述的一种可变换钳柄角度的夹紧工具, 其特征在 于:所述右钳柄下部钳柄的侧面制有避免导向销轴产生作用力的圆弧 ffl槽。
6. 根据权利要求 5所述的一种可变换钳柄角度的夹紧工具, 其特征在 于: 所述右钳柄下部钳柄制有向外折弯部。
PCT/CN2011/082154 2011-08-09 2011-11-14 可变换钳柄角度的夹紧工具 WO2013020335A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11870548.2A EP2682233B1 (en) 2011-08-09 2011-11-14 Clamping tool capable of changing clamp handle angle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2011202860095U CN202225105U (zh) 2011-08-09 2011-08-09 可变换钳柄角度的夹紧工具
CN201120286009.5 2011-08-09

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US10343295B2 (en) 2015-12-10 2019-07-09 Milwaukee Electric Tool Corporation Bolt cutter
CN113183096A (zh) * 2021-04-23 2021-07-30 神华神东煤炭集团有限责任公司 一种开口销折弯钳
US11745326B2 (en) 2018-03-30 2023-09-05 Milwaukee Electric Tool Corporation Bolt cutter
US12115687B2 (en) 2018-03-30 2024-10-15 Milwaukee Electric Tool Corporation Bolt cutter

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US10343295B2 (en) 2015-12-10 2019-07-09 Milwaukee Electric Tool Corporation Bolt cutter
US11090822B2 (en) 2015-12-10 2021-08-17 Milwaukee Electric Tool Corporation Bolt cutter
US11745326B2 (en) 2018-03-30 2023-09-05 Milwaukee Electric Tool Corporation Bolt cutter
US12115687B2 (en) 2018-03-30 2024-10-15 Milwaukee Electric Tool Corporation Bolt cutter
CN113183096A (zh) * 2021-04-23 2021-07-30 神华神东煤炭集团有限责任公司 一种开口销折弯钳
CN113183096B (zh) * 2021-04-23 2022-07-26 神华神东煤炭集团有限责任公司 一种开口销折弯钳

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