WO2013020453A1 - 快速活扳手 - Google Patents

快速活扳手 Download PDF

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Publication number
WO2013020453A1
WO2013020453A1 PCT/CN2012/079123 CN2012079123W WO2013020453A1 WO 2013020453 A1 WO2013020453 A1 WO 2013020453A1 CN 2012079123 W CN2012079123 W CN 2012079123W WO 2013020453 A1 WO2013020453 A1 WO 2013020453A1
Authority
WO
WIPO (PCT)
Prior art keywords
wrench
hole
worm
tooth
pin
Prior art date
Application number
PCT/CN2012/079123
Other languages
English (en)
French (fr)
Inventor
黄旭东
Original Assignee
Huang Xudong
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 Huang Xudong filed Critical Huang Xudong
Priority to US14/237,061 priority Critical patent/US9718171B2/en
Priority to EP12821562.1A priority patent/EP2740570A4/en
Priority to CN201280003071.6A priority patent/CN103153545B/zh
Publication of WO2013020453A1 publication Critical patent/WO2013020453A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/10—Spanners; Wrenches with adjustable jaws
    • B25B13/12—Spanners; Wrenches with adjustable jaws the jaws being slidable
    • B25B13/14—Spanners; Wrenches with adjustable jaws the jaws being slidable by rack and pinion, worm or gear

Definitions

  • the invention belongs to the field of hardware tools, in particular to a quick adjustable wrench with a quick adjustment function.
  • the handle grips the shank with the thumb and the index finger at the same time, and the movable wrench can be used. Quickly slide, which greatly improves work efficiency.
  • the adjustable wrench is one of the most commonly used hand tools in hardware tools.
  • the advantage of the ordinary adjustable wrench is that it can pull a variety of hexagonal workpieces at the same time.
  • the disadvantage is that when rotating workpieces with different specifications, it is necessary to compare Long-term rotation of the worm adjusts the opening size of the clamping surface, which is inefficient and inconvenient to use.
  • the present invention provides a quick adjustable wrench which not only retains all the functions of the ordinary adjustable wrench, but also provides a function of allowing the clamping surface to open and close quickly, when clamping the workpiece. Hold the trigger with your thumb and forefinger while pinching the worm down.
  • the movable wrench can quickly slide away from the fixed wrench. Loosen the worm and push the movable wrench to move it quickly toward the fixed wrench. After contact with the workpiece, the workpiece can be quickly locked by rotating the worm slightly, which greatly improves the work efficiency.
  • the utility model relates to a quick adjustable wrench, which is composed of a trigger body, a movable wrench, a worm, a pin shaft, a spring, a support pin, a key wedge and a limit pin, and the front end of the wrench body has a fixed wrench, the wrench body The back end has a handle, the fixing wrench has a clamping surface, and the fixing wrench has a groove under the fixing.
  • the upper part of the groove is two surfaces parallel to each other, and the lower part of the groove has a circular arc surface, and the circular arc surface
  • the middle part has a gap downward to communicate with a rectangular through hole, and the movable wrench is from upper, middle and lower
  • the utility model has three parts, the upper part has a clamping surface, the middle part has a thickness smaller than the distance between two parallel faces in the fixed wrench groove, and the lower part has a circular arc surface symmetrically, and the maximum distance between the curved surfaces is smaller than a diameter of a bottom arc surface of the fixed wrench groove, a lower end of the movable wrench is provided with a tooth, the top of the tooth is flat and engages with a helical tooth of the worm, wherein the fixed wrench is concave
  • a key hole is disposed under the slot, and the key hole extends from the surface of the trigger body away from the fixed wrench clamping surface through the rectangular through hole to be adjacent to the lower surface of the fixed wrench clamping surface to form a
  • the length of the spring is less than the depth of the spring hole away from the side of the groove.
  • the support pin has a cylindrical shape and has an arcuate concave end at one end.
  • the utility model relates to a quick adjustable wrench, which comprises a fixed wrench integrated with a wrench handle and a movable wrench driven by a worm rotating shaft.
  • the movable wrench is provided with a tooth which can mesh with the worm helical tooth, and the wrench is fixed.
  • a ventilation window is disposed on a lower side of the wrench, and a support hole is disposed on a sidewall of the horizontal side of the transparent window, and a pin disposed in the support hole supports the worm in the transparent window;
  • the apertures of the support holes on both sides of the through-window are long apertures in which the pin shaft can move up and down.
  • the lower sides of the support holes on the horizontal sides of the transparent window are respectively provided with spring positioning holes, and the spring positioning holes are provided with springs, and the springs will be
  • the pin support causes the worm tooth to mesh with the teeth of the movable wrench; the movable wrench tooth has a height of at least one tooth on the tip side of the clamping surface higher than the height of the other teeth thereafter, The length of the spring after pressing down at least ensures that the length of the radial displacement of the worm teeth does not exceed the height of the highest tooth of the movable wrench.
  • the length of the spring depression is such that the length of the radial displacement of the worm teeth is one-half to four-fifth of the height of the highest tooth of the movable wrench.
  • the height of the movable jaw teeth on the clamping surface side has two teeth higher than the height of the other teeth, the other teeth have the same height, and the other teeth are the top two teeth. Four-fifths of the height of the tooth.
  • the spring is provided with a cylindrical support pin that pushes the cylindrical support pin against the pin.
  • the invention has the advantages of simple structure, convenient use, holding the wrench, and pinching the hem of the worm with the thumb and the index finger, so that the opening size of the clamping surface can be quickly adjusted, and the use efficiency of the adjustable wrench is improved;
  • the setting of the movable wrench does not fall off when the size of the opening of the clamping surface is adjusted, thereby reducing the processing procedure of the adjustable wrench and saving Expenditure.
  • Figure 1 is an exploded view of the structure of the present invention
  • Figure 2 is a front perspective view of the wrench structure of the present invention.
  • Figure 3 is a partial left side perspective view of the wrench structure fixing wrench of the present invention.
  • Figure 4 is a top view of the wrench structure of the present invention.
  • Figure 5 is a front view of the worm of the present invention.
  • Figure 6 is an assembled top view of the present invention.
  • Figure 7 is an assembled front perspective view of the present invention.
  • FIG. 8 is a schematic structural view of a trigger body according to Embodiment 2 of the present invention.
  • Figure 9 is a schematic view showing the meshing structure of the worm and the movable wrench tooth of the present invention.
  • FIG. 1 to FIG. 7 An example of an adjustable wrench, referring to FIG. 1 to FIG. 7, as shown in FIG. 1, the wrench is composed of a wrench 1, a movable wrench 2, a worm 3, a pin 4, a spring 5, a key wedge 6, and a limit
  • the position pin 7 and the support pin 8 are composed.
  • the front end of the wrench body 1 is a fixed wrench 101
  • the rear end of the wrench body is a handle 102
  • the fixed wrench has a workpiece clamping surface 103
  • the movable wrench 2 has a workpiece clamping surface 201.
  • 104 is a fixed wrench groove
  • 105 is a rectangular through hole
  • 106 is a key type through hole
  • 107 is a key type blind hole
  • 108 is a spring hole
  • 109 As the limiting hole, as shown in FIG. 1, FIG. 6, and FIG. 7, the spring 5 end is inserted into the spring hole 108, the worm 3 is placed in the middle of the rectangular through hole 105, and the pin 4 is inserted from the outside of the wrench.
  • the key In the through hole 106, simultaneously press down the top end of the support pin 8 in the key through hole such that the pin is located above the curved concave surface of the top end of the support pin, and the pin passes through the center of the worm a hole 302, pressing down the top end of the support pin 8 in the key type blind hole until the pin is located above the curved concave surface of the top end of the support pin and contacting the bottom surface of the key type blind hole 107, and then the key wedge
  • the block 6 is embedded in the key hole from the outside of the trigger body, preventing the pin from falling off the trigger body, pressing the worm 3 in the opposite direction of the spring tension, and facing the clamping surface 201 of the movable wrench facing the fixed wrench
  • the surface 103 is inserted into the fixed wrench groove 104, and a groove 203 is disposed on the middle side of the movable wrench to cooperate with the groove 104 away from the fixed wrench clamping surface 103.
  • a limiting hole 109 is defined in the side, and the limiting pin 7 is fixed in the limiting hole to prevent the movable wrench from slipping away from the clamping surface of the fixed wrench, as shown in FIG. 5, the worm
  • the tooth surface extension lines of the teeth 301 intersect at an acute angle A (an acute angle of 30 degrees to 45 degrees). This embodiment is an acute angle of 35 degrees.
  • the top end of the worm has a curved surface and is in mesh with the tooth 202 at the lower end of the movable wrench 2, and when the movable wrench 2 is away from the fixed wrench, the handle 102 is grasped, and the thumb is pushed
  • the fixed wrench can quickly realize the rapid movement of the movable wrench clamping surface in the direction of the fixed wrench clamping surface, and the worm gear 3 is lowered by the thumb and the index finger, so that the worm tooth can be completely disengaged and located in the lower part of the movable wrench
  • the teeth of the top are engaged, and the movable wrench can move back and forth in the groove at will.
  • This embodiment is an improvement based on the first embodiment.
  • the same portions as those of the first embodiment in the present embodiment will be understood by referring to the contents disclosed in the first embodiment.
  • a quick spanner wrench includes a fixed wrench 101 integrally coupled with the handle 102 of the wrench 1 and a movable wrench 2 driven by the worm 3, the movable wrench
  • the tooth 202 is meshed with the worm helical tooth, and the wrench is provided with a transparent window (the rectangular through hole in the embodiment 1) 105 on the lower side of the fixed wrench, and the sides of the horizontal side of the transparent window
  • the wall is provided with support holes 106 and 107, and the pin 4 disposed in the support hole supports the worm in the transparent window; wherein the aperture of the support hole on both sides of the transparent window is that the pin can move up and down radially
  • the elongated aperture (the keyhole in the first embodiment), the lower side of the horizontal support holes on the horizontal sides of the transparent window are respectively provided with a spring positioning hole (spring hole) 108, and the spring positioning hole is provided with a spring 5, The spring lifts the pin to urge the worm tooth to mesh with the tooth of the movable wrench; the difference from the first
  • the spring is provided with a cylindrical support pin 8, and the spring pushes the cylindrical support pin against the pin.
  • This embodiment is an improvement based on the second embodiment.
  • the same parts as the second embodiment in this embodiment are understood by referring to the contents disclosed in the second embodiment.
  • the content disclosed in the second embodiment should also be used as the present embodiment.
  • the content of the example is not repeated here.
  • the length of the spring depression is such that the length of the radial displacement of the worm tooth is from one-half to four-fifth of the height of the highest tooth of the movable wrench.
  • the height of the three teeth on the top end of the movable face tooth is higher than the height of the other teeth, and the heights of the other teeth are the same.
  • the other teeth are four-fifths of the height of the top three teeth.
  • the wrench is held by the hand, and the shackle of the worm is pinched at the same time with the thumb and the index finger, and the spring is compressed, so that the helical tooth tip of the worm is completely disengaged from the teeth of the flat head portion at the lower end of the movable wrench.
  • the movable wrench can freely slide in the horizontal direction (lateral direction) of the fixed wrench through window, and the worm is loosened. Since the angle of the helical tooth is reasonable, the helical tooth will automatically be under the tension of the spring. Engaging with the teeth at the lower end of the movable wrench. When the movable wrench is away from the fixed wrench clamping surface, use the thumb to push the wrench toward the clamping surface of the fixed wrench.
  • the movable wrench Being automatically compressed down, the movable wrench can move rapidly toward the fixed wrench clamping surface without rotating the worm, when the workpiece needs to be rotated, when the fixed wrench clamping surface is After the movable gripping surface is in contact with the workpiece, finely adjust the rotating worm with the thumb and forefinger, and the two clamping surfaces can quickly lock the surface of the workpiece, thereby reaching Quickly adjust the purpose of the opening and closing of the clamping surface, and since the three teeth at the end of the movable wrench are higher than the other teeth, the movable wrench is high tooth when the worm is clamped with both the thumb and the index finger. The block will not come out of the trigger.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Abstract

一种快速活扳手，所述扳手在固定扳头（101）下侧设置有蜗杆传动窗口（105），窗口的两侧设有支撑孔（106，107），支撑孔是销轴（4）可径向上下移动的长形口径孔，长形口径孔的下侧面分别设有弹簧定位孔（108），弹簧（5）将所述销轴托起促使蜗杆齿牙与活动扳头（2）的齿牙啮合；所述弹簧下压后的长度至少保证蜗杆齿牙径向移位的长度不超出活动扳头齿牙高度，所述活动扳头齿牙在夹持面侧的顶端至少有一个齿牙的高度高于其后其他齿牙的高度。本活动扳头结构简单，使用方便，可快速调整夹持面的开口大小，提高了活扳手的使用效率；采用不同活动扳头齿牙高度的设置，在调整开口大小时活动扳头不会脱落的前提下，减小了对活动扳手的加工工序，节省了成本。

Description

快速活扳手
技术领域
本发明属于五金工具领域，尤其涉及一种带有快速调节功能的快 速活扳手， 所述活扳手夹持工件时， 手握扳柄用拇指和食指同时捏住 蜗杆下拽， 活动扳头便可迅速滑动， 从而大大提高了工效。
背景技术
活扳手是五金工具中最为普遍使用的手动工具之一，普通活扳手 的优点是可以同时扳转多种规格尺寸的六角形工件，其劣势是当在旋 转规格差别很大的工件时，需要较长时间旋转蜗杆调整夹持面的开口 大小， 工作效率较低， 使用不方便。
发明内容
为了克服普通活扳手的不足， 本发明提供了一种快速活扳手， 所 述活扳手不仅保留了普通活扳手的所有功能，而且提供了可以使夹持 面迅速开合的功能， 夹持工件时， 手握扳柄用拇指和食指同时捏住蜗 杆下拽， 活动扳头便可迅速向远离固定扳头方向滑动， 松开蜗杆轻推 活动扳头可使其向固定扳头方向迅速移动， 当与工件接触后， 稍加旋 转蜗杆便可迅速锁住工件， 从而大大提高了工效。
为了实现上述目的， 本发明的技术方案是：
一种快速活扳手， 所述活扳手由扳体、 活动扳头、 蜗杆、 销轴、 弹簧、 支撑销、 键型楔块、 限位销组成， 扳体的前端有固定扳头， 扳 体的后端有手柄， 固定扳头上有夹持面， 固定扳头下方有一凹槽， 所 述凹槽内上部为相互平行的两个面， 凹槽下部呈圆弧面， 在所述圆弧 面的中间部分向下有豁口与一矩形通孔相通， 活动扳头由上、 中、 下 三个部分组成， 上部有夹持面， 中部的厚度小于所述固定扳头凹槽内 相互平行两个面之间的距离， 下部两侧对称呈圆弧面， 其弧面间的最 大距离小于所述固定扳头凹槽底部圆弧面的直径，所述活动扳头下部 顶端设有齿牙，该齿牙顶部呈平头并与蜗杆的螺旋齿相互啮合，其中， 位于所述固定扳头凹槽下方设有键型孔，键型孔从远离固定扳头夹持 面的扳体表面贯穿所述矩形通孔延伸至邻近所述固定扳头夹持面的 下方，形成一键型通孔和一键型盲孔，分别位于所述矩形通孔的两侧， 键型孔的中心线与所述固定扳头夹持面垂直，两个弹簧孔贯穿所述凹 槽下部， 分别延伸至键型通孔和键型盲孔另一面的下部， 将弹簧一端 透过凹槽下部分别插入弹簧孔内，将两个支撑销的较细一端同样透过 凹槽下部分别插入弹簧的中心孔内， 把蜗杆放置在所述矩形通孔中 间， 从扳体外侧将销轴一端插入键型通孔， 同时下压所述键型通孔内 的支撑销顶端， 使销轴位于所述支撑销顶端之上， 销轴穿过蜗杆的中 心孔， 同时下压键型盲孔内的支撑销顶端， 直至所述销轴位于所述支 撑销顶端之上并与键型盲孔底面接触，之后将键型楔块从扳体外侧嵌 入所述键型孔内， 阻止销轴从扳体脱落， 沿弹簧张力相反方向下压蜗 杆，将活动扳头的夹持面面对固定扳头的夹持面并将其下部推入所述 固定扳头的凹槽中， 位于所述活动扳头中部一侧设有凹槽， 与其相配 合， 在远离固定扳头夹持面的凹槽一侧设有限位通孔， 将限位销固定 在所述限位通孔内， 阻止活动扳头沿远离固定扳头夹持面方向滑脱。 所述蜗杆螺旋齿齿牙面相交延伸线呈锐角，锐角顶端呈弧面并滚 花处理。
所述弹簧的长度小于远离所述凹槽一侧的弹簧孔深度。 所述支撑销呈圆柱形， 且一端呈弧形凹面。
一种快速活扳手，包括与扳手手柄连为一体的固定扳头和由蜗杆 转动驱动的活动扳头，活动扳头上设有可与蜗杆螺旋齿牙相啮合的齿 牙， 所述扳手在固定扳头下侧设置有通透窗口， 通透窗口水平两侧的 侧壁上设有支撑孔，支撑孔中设置的销轴将所述蜗杆支撑在通透窗口 中； 其特征在于， 所述通透窗口两侧支撑孔的孔径是销轴可径向上下 移动的长孔径，所述通透窗口水平两侧支撑孔的下侧面分别设有弹簧 定位孔， 弹簧定位孔中设置有弹簧， 弹簧将所述销轴托起促使蜗杆齿 牙与活动扳头的齿牙啮合；所述活动扳头齿牙在夹持面侧的顶端至少 有一个齿牙的高度高于其后其它齿牙的高度，所述弹簧下压后的长度 至少保证蜗杆齿牙径向移位的长度不超出活动扳头最高齿牙高度。
所述弹簧压下的长度是保证蜗杆齿牙径向移位的长度是活动扳 头最高齿牙高度的二分之一至五分之四。
所述活动扳头齿牙在夹持面侧的顶端有两个齿牙的高度高于其 后其它齿牙的高度， 所述其它齿牙的高度一致， 所述其它齿牙是顶端 两个齿牙高度的五分之四。
所述弹簧上设有圆柱形支撑销，弹簧推动圆柱形支撑销顶在销轴 上。
本发明结构简单， 使用方便， 手握扳手， 用拇指和食指同时捏住 蜗杆下拽， 便可以迅速的调整夹持面的开口大小， 提高了活扳手的使 用效率； 不同活动扳头齿牙高度的设置， 在实现调整夹持面的开口大 小时活动扳头不会脱落的前提下， 减少了对活扳手的加工工序， 节省 了开支。
下面结合附图和实施例对发明作一详细描述。
附图说明
图 1为本发明结构爆炸图；
图 2为本发明扳体结构正视透视图；
图 3为本发明扳体结构固定扳头局部左视透视图；
图 4为本发明扳体结构上视图；
图 5为本发明蜗杆正视图；
图 6为本发明组装上视图；
图 7为本发明组装正视透视图；
图 8为本发明实施例 2的扳体结构示意图；
图 9为本发明蜗杆和活动扳头齿牙啮合结构示意图。
具体实施方式
实施例 1 ;
一种活扳手实施例， 参见图 1至图 7， 如图 1所示， 所述扳手由 扳体 1、 活动扳头 2、 蜗杆 3、 销轴 4、 弹簧 5、 键型楔块 6、 限位销 7、 支撑销 8组成， 扳体 1的前端是固定扳头 101， 扳体的后端是手 柄 102，固定扳头上有工件夹持面 103，活动扳头 2有工件夹持面 201， 如图 1、 图 2、 图 3、 图 4所示， 104为固定扳头凹槽， 105为矩形通 孔， 106为键型通孔， 107为键型盲孔， 108为弹簧孔， 109为限位 孔， 如图 1、 图 6、 图 7所示， 将弹簧 5—端分别插入弹簧孔 108内， 把蜗杆 3放置在矩形通孔 105中间，从扳体外侧将销轴 4一端插入键 型通孔 106内， 同时下压所述键型通孔内的支撑销 8的顶端， 使所述 销轴位于所述支撑销顶端的弧形凹面之上，销轴穿过所述蜗杆的中心 孔 302， 下压所述键型盲孔内的支撑销 8顶端， 直至所述销轴位于所 述支撑销顶端的弧形凹面之上并与键型盲孔 107底面接触，之后将键 型楔块 6从扳体外侧嵌入所述键型孔内， 防止销轴从所述扳体脱落， 沿弹簧张力相反方向下压蜗杆 3， 将活动扳头的夹持面 201面对固定 扳头的夹持面 103并将其插在所述固定扳头凹槽 104中，位于所述活 动扳头中部一侧设有凹槽 203， 与其相配合， 在远离固定扳头夹持面 103的凹槽 104—侧设有限位孔 109， 将限位销 7固定在所述限位孔 内， 阻止所述活动扳头沿远离所述固定扳头夹持面方向滑脱， 如图 5 所示， 所述蜗杆的齿牙 301 的齿牙面延伸线相交呈锐角 A ( 30度至 45度的锐角）本实施例是 35度锐角， 蜗杆的齿牙顶端呈弧面且与位 于所述活动扳头 2下部顶端的齿牙 202相互啮合，当活动扳头 2远离 所述固定扳头时， 手握所述手柄 102， 用拇指推所述固定扳头便可迅 速实现所述活动扳头夹持面向所述固定扳头夹持面方向迅速运动，用 拇指和食指下拽蜗杆 3， 可使蜗杆齿牙完全脱离与位于活动扳头下部 顶端的齿牙啮合， 此时活动扳头可以随意在所述凹槽内来回移动。
实施例 2;
本实施例是在实施例 1的基础上进行的改进，本实施例中与实施 例 1相同的部分， 请参照实施例 1中公开的内容进行理解。
参见图 8和图 9， 一种快速活扳手， 包括与扳手 1的手柄 102连 为一体的固定扳头 101和由蜗杆 3转动驱动的活动扳头 2， 活动扳头 上设有可与蜗杆螺旋齿牙相啮合的齿牙 202， 所述扳手在固定扳头下 侧设置有通透窗口 （实施例 1中的矩形通孔） 105， 通透窗口水平两 侧的侧壁上设有支撑孔 106和 107， 支撑孔中设置的销轴 4将所述蜗 杆支撑在通透窗口中； 其中， 所述通透窗口两侧支撑孔的孔径是销轴 可径向上下移动的长条形孔径 （实施例 1中的键形孔）， 所述通透窗 口水平两侧支撑孔的下侧面分别设有弹簧定位孔 （弹簧孔） 108， 弹 簧定位孔中设置有弹簧 5， 弹簧将所述销轴托起促使蜗杆齿牙与活动 扳头的齿牙啮合； 与实施例 1的不同点在于， 所述活动扳头齿牙在夹 持面侧的顶端侧的齿牙 202-1 至少有一个齿牙的高度高于其后其它 齿牙的高度，所述弹簧下压后的长度至少保证蜗杆齿牙径向移位的长 度不超出活动扳头最高齿牙高度。
实施例中， 所述弹簧上设有圆柱形支撑销 8， 弹簧推动圆柱形支 撑销顶在销轴上。
实施例 3 ;
本实施例是在实施例 2的基础上进行的改进，本实施例中与实施 例 2相同的部分， 请参照实施例 2中公开的内容进行理解， 实施例 2 公开的内容也应当作为本实施例的内容， 此处不作重复描述。
实施例中，所述弹簧压下的长度是保证蜗杆齿牙径向移位的长度 是活动扳头最高齿牙高度的二分之一至五分之四。
为了增加可靠性， 本实施例中，所述活动扳头齿牙在夹持面侧的 顶端有三个齿牙的高度高于其后其它齿牙的高度，所述其它齿牙的高 度一致， 所述其它齿牙是顶端三个齿牙高度的五分之四。其方法是在 加工的过程中留有活动扳头齿牙在夹持面侧的顶端的三个齿牙不动， 其余的齿牙做平头处理。
在本实施例中手握扳手， 用拇指和食指同时捏住蜗杆下拽， 此时弹簧 被压缩，使得所述蜗杆的螺旋齿齿顶完全脱离与位于活动扳头下部顶 端平头部分齿牙的啮合，活动扳头可以在所述固定扳头通透窗口水平 方向 （横向） 内自由滑动， 松开所述蜗杆， 由于螺旋齿的角度设计合 理， 在弹簧的张力作用下， 所述螺旋齿会自动与位于所述活动扳头下 部顶端齿牙相互啮合， 当所述活动扳头远离所述固定扳头夹持面时， 用拇指向靠近固定扳头夹持面方向轻推扳头，此时弹簧被自动压缩下 行， 在无需旋转蜗杆的情况下， 所述活动扳头便可向所述固定扳头夹 持面方向快速移动， 需要旋转工件时， 当所述固定扳头夹持面与所述 活动扳头夹持面与工件接触后， 用拇指和食指稍加旋转蜗杆进行微 调， 所述的两个夹持面便可以迅速锁紧工件表面， 从而达到迅速调节 夹持面开合的目的，同时由于所述活动扳头端部的三个齿牙高出其余 齿牙，所以当用拇指和食指同时捏住蜗杆下拽时活动扳头由于高齿牙 的阻挡不会脱出扳体。

Claims

权利 要 求 书
1.快速活扳手， 所述活扳手由扳体、 活动扳头、 蜗杆、 销轴、 弹 簧、 支撑销、 键型楔块、 限位销组成， 扳体的前端有固定扳头， 扳体 的后端有手柄， 固定扳头上有夹持面， 固定扳头下方有一凹槽， 所述 凹槽内上部为相互平行的两个面， 凹槽下部呈圆弧面， 在所述圆弧面 的中间部分向下有豁口与一矩形通孔相通， 活动扳头由上、 中、 下三 个部分组成， 上部有夹持面， 中部的厚度小于所述固定扳头凹槽内相 互平行两个面之间的距离， 下部两侧对称呈圆弧面， 其弧面间的最大 距离小于所述固定扳头凹槽底部圆弧面的直径，所述活动扳头下部顶 端设有齿牙， 该齿牙顶部呈平头并与蜗杆的螺旋齿相互啮合， 其特征 在于， 位于所述固定扳头凹槽下方设有键型孔， 键型孔从远离固定扳 头夹持面的扳体表面贯穿所述矩形通孔延伸至邻近所述固定扳头夹 持面的下方， 形成一键型通孔和一键型盲孔， 分别位于所述矩形通孔 的两侧， 键型孔的中心线与所述固定扳头夹持面垂直， 两个弹簧孔贯 穿所述凹槽下部， 分别延伸至键型通孔和键型盲孔另一面的下部， 将 弹簧一端透过凹槽下部分别插入弹簧孔内，将两个支撑销的较细一端 同样透过凹槽下部分别插入弹簧的中心孔内，把蜗杆放置在所述矩形 通孔中间， 从扳体外侧将销轴一端插入键型通孔， 同时下压所述键型 通孔内的支撑销顶端， 使销轴位于所述支撑销顶端之上， 销轴穿过蜗 杆的中心孔， 同时下压键型盲孔内的支撑销顶端， 直至所述销轴位于 所述支撑销顶端之上并与键型盲孔底面接触，之后将键型楔块从扳体 外侧嵌入所述键型孔内， 阻止销轴从扳体脱落， 沿弹簧张力相反方向 下压蜗杆，将活动扳头的夹持面面对固定扳头的夹持面并将其下部推 入所述固定扳头的凹槽中， 位于所述活动扳头中部一侧设有凹槽， 与 其相配合， 在远离固定扳头夹持面的凹槽一侧设有限位通孔， 将限位 销固定在所述限位通孔内，阻止活动扳头沿远离固定扳头夹持面方向 滑脱。
2.根据权利要求 1所述的快速活扳手， 其特征在于， 所述蜗杆螺 旋齿齿牙面相交延伸线呈锐角， 锐角顶端呈平面并滚花处理。
3.根据权利要求 1所述的快速活扳手， 其特征在于， 所述弹簧的 长度小于远离所述凹槽一侧的弹簧孔深度。
4.根据权利要求 1所述的快速活扳手， 其特征在于， 所述支撑销 呈圆柱形， 且一端呈弧形凹面。
5.快速活扳手，包括与扳手手柄连为一体的固定扳头和由蜗杆转 动驱动的活动扳头， 活动扳头上设有可与蜗杆螺旋齿牙相啮合的齿 牙， 所述扳手在固定扳头下侧设置有通透窗口， 通透窗口水平两侧的 侧壁上设有支撑孔，支撑孔中设置的销轴将所述蜗杆支撑在通透窗口 中； 其特征在于， 所述通透窗口两侧支撑孔的孔径是销轴可径向上下 移动的长孔径，所述通透窗口水平两侧支撑孔的下侧面分别设有弹簧 定位孔， 弹簧定位孔中设置有弹簧， 弹簧将所述销轴托起促使蜗杆齿 牙与活动扳头的齿牙啮合；所述活动扳头齿牙在夹持面侧的顶端至少 有一个齿牙的高度高于其后其它齿牙的高度，所述弹簧下压后的长度 至少保证蜗杆齿牙径向移位的长度不超出活动扳头最高齿牙高度。
6.根据权利要求 5所述的快速活扳手， 其特征在于， 所述弹簧压 下的长度是保证蜗杆齿牙径向移位的长度是活动扳头最高齿牙高度 的二分之一至五分之四。
7.根据权利要求 5所述的快速活扳手， 其特征在于， 所述活动扳 头齿牙在夹持面侧的顶端有两个齿牙的高度高于其后其它齿牙的高 度， 所述其它齿牙的高度一致， 所述其它齿牙是顶端两个齿牙高度的 五分之四。
8.根据权利要求 5所述的快速活扳手， 其特征在于， 所述弹簧上设有 支撑销， 弹簧推动支撑销顶在销轴上。
PCT/CN2012/079123 2011-08-05 2012-07-25 快速活扳手 WO2013020453A1 (zh)

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