WO2013071781A1 - 一种可调节式扳手 - Google Patents

一种可调节式扳手 Download PDF

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Publication number
WO2013071781A1
WO2013071781A1 PCT/CN2012/080169 CN2012080169W WO2013071781A1 WO 2013071781 A1 WO2013071781 A1 WO 2013071781A1 CN 2012080169 W CN2012080169 W CN 2012080169W WO 2013071781 A1 WO2013071781 A1 WO 2013071781A1
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WO
WIPO (PCT)
Prior art keywords
wrench
claw
adjustable
straight
lip
Prior art date
Application number
PCT/CN2012/080169
Other languages
English (en)
French (fr)
Inventor
马岳骁
马建伟
Original Assignee
Ma Yuexiao
Ma Jianwei
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 Ma Yuexiao, Ma Jianwei filed Critical Ma Yuexiao
Priority to AU2012339416A priority Critical patent/AU2012339416A1/en
Priority to US14/358,227 priority patent/US20140326109A1/en
Publication of WO2013071781A1 publication Critical patent/WO2013071781A1/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
    • B25B13/16—Spanners; Wrenches with adjustable jaws the jaws being slidable by screw or nut
    • 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
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/08—Spanners; Wrenches with rigid jaws of open jaw type
    • 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
    • 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
    • B25B13/20—Arrangements for locking the jaws
    • 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
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle

Definitions

  • the present invention relates to a novel wrench, and more particularly to a new adjustable wrench. Background technique
  • Wrenches are a common type of work tool. There are two types of wrenches. There are two main types according to adjustability: adjustable wrench and rigid hand. They each have their own advantages and disadvantages.
  • 1, 5 is a thumb-shaped lower grip claw, which is connected with the handle, 1 is a curved upper grip claw, on which
  • the strip hole 3 is opened and provided with a plurality of hinged positions; 5 and 1 are combined by the pivot 4 to form a gripping jaw, and the size of the jaw can be adjusted by adjusting the upper gripping claw 1 and the pivot 4
  • the hinged position is achieved by the angle of the pawl 1 at 4 pivot points. It can be used to rotate bolts, nuts, pipe joints, etc., or the same type of connector within a predetermined size range, and can be applied to a variety of sizes of nuts or pipe diameters. However, when the hex nut is tightened with this wrench, since the point A is often point contact, it is easy to damage the corner of the nut.
  • the existing adjustable adjustable wrench is more popular because it can accommodate a variety of nuts of different sizes and its opening width is continuously adjustable. But its shortcomings are also obvious.
  • Teen who has used an adjustable wrench knows that it is easy to slip if it is improperly adjusted, or damage the corner of the nut. This is because the direction of adjustment of the opening is the same as the direction of the force. Even if the width of the adjusted opening is the same as the size of the nut, the opening of the wrench is caused by the gap between the adjusting wheel and the rack when the force is applied. Getting bigger, causing skidding, or damage to the nut.
  • Fig. 3 it has a sliding hole respectively on the working faces of the two jaws of the rigid hand, and a wedge is placed in each sliding hole.
  • the two wedges can be tightly engaged with the nut, and when the clamping position needs to be replaced after the screwing is performed, the wrench is not pulled out and reinserted as in the conventional wrench, and only the wrench needs to be reversed. It is enough to turn, because the wedge compresses the spring and makes the jaws larger in the reverse rotation, which improves the working efficiency. Since the spacing between the two jaws of the wrench is fixed, a plurality of wrenches are needed during operation, which limits the application range of the wrench, and has a complicated structure and many components, which affects the stability thereof.
  • Chinese utility model patent ZL02270676.3 provides a single wedge wrench, as shown in Figure 4. It comprises a wedge 3 with a serrated groove and a jaw 1 which is associated with one of the jaws 4 and is slidable along the inner side of the jaw, the inner side and the clamping surface of the jaw The angle is greater than 0° and less than 90. ;
  • the spring 5 is arranged longitudinally between the wedge and the jaw. When the wrench is turned, the wrench does not need to be pulled out and reinserted, and only the wrench needs to be reversely rotated. Because the wedge compresses the spring in the reverse rotation, the jaws become larger, which is beneficial to improve the nut. Work efficiency.
  • the friction force and the clamping force are increased when the clamping object is screwed, and the protruding object can be effectively clamped, and the bald nut and the round pipe member can be clamped, thereby The role of the pipe wrench.
  • the shortcomings of the adjustable wrench are slippery, and the nut is easily damaged.
  • the technical problem to be solved by the present invention is to provide a problem that can solve the problem that the width of the existing wrench is not adjustable, and at the same time solve the problem that the existing adjustable wrench is aligned due to the adjustment of the opening size and the direction of the force.
  • an adjustable wrench comprising a handle, at least one end of the handle is provided with straight claws and oblique claws forming a wrench jaw at an angle to each other,
  • An adjustable sliding lip movable along a length thereof is disposed on the straight claw, and the adjusting sliding lip includes an inclined surface that acts with a nut, the inclined surface being parallel to an inner surface of the oblique claw forming the wrench jaw.
  • the adjustable wrench described above is provided with a positioning mechanism that can be fixed at any position on the straight claw between the adjusting sliding lip and the straight claw.
  • the positioning mechanism is a set screw provided on a side or a bottom surface of the adjusting lip.
  • the positioning mechanism is an interlocking locking serration provided on the sliding surface of the straight claw and the adjusting sliding lip.
  • the adjusting sliding lip is provided with a screw passing through the inside thereof, and a rotating wheel which is matched with the screw and adjusts the reciprocating movement of the sliding lip along the straight claw is fixed on the straight claw.
  • the jaw angle formed between the straight claw and the oblique claw is 5 ° ⁇ 40 °
  • the advantage of the adjustable wrench of the present invention is that the invention provides an adjusting sliding lip on the oblique claw by providing mutually angled straight claws and oblique claws, so that the nut acting surface of the adjusting sliding lip is always with the inner surface of the inclined claw during the moving process.
  • Parallel the pressure of the nut is perpendicular to the inclined surface of the adjusting lip when used, so that the force of the force is small in the direction of moving the adjusting lip, which is not easy to slip.
  • it has a locking function, and absorbs the advantages of accurate size of the rigid hand and is not easy to slip, and solves the problem that the opening width of the existing wrench is not adjustable, so that it is not necessary to equip the wrench when working.
  • the existing spanner wrench width can be continuously adjusted, and solves the existing adjustable wrench. Because the opening adjustment direction is consistent with the direction of the force, the dial wheel and the rack are easily worn, and the dial wheel and the tooth are made. The meshing gap is increased, and if it is improperly adjusted, 4 ⁇ is easy to slip, or the nut is damaged.
  • FIG. 1 is a structural view of a conventional adjustable multi-purpose wrench in the prior art
  • Figure 2 is a structural view of a conventional multi-purpose wrench
  • Figure 3 is a structural view of a double wedge wrench
  • Figure 4 is a structural view of a single wedge wrench
  • Figure 5 is a schematic structural view of the present invention.
  • FIG. 6 is a structural view of Embodiment 1 of the present invention.
  • Figure 7 is a structural view of Embodiment 2.
  • Figure 8 is a structural view of Embodiment 3.
  • Figure 9 is a structural view of Embodiment 4.
  • Figure 10 is a partial cross-sectional view showing the engagement of the tenon and the groove of the straight claw in the embodiment 4;
  • Figure 11 is a structural view of the embodiment 5;
  • Figure 12 is a view taken along the line A in the fifth embodiment.
  • an adjustable wrench includes a handle, and at least one end of the handle is provided with a straight claw 2 and a diagonal claw 1 which form a wrench jaw at an angle to each other, and the straight claw 2 is disposed An adjustment sliding lip 4 movable along its length, said adjustment lip 4 comprising an inclined surface 41 acting against a nut, said inclined surface 41 being parallel to the inner surface 11 of the oblique claw 1 forming the wrench jaw.
  • the wrench is composed of a diagonal claw 1 and a straight claw 2 and an adjusting sliding lip 4, wherein the adjusting sliding lip 4 has an inclined surface 41 with an inclination angle a, a straight claw 2 and a diagonal claw 1
  • the invention is 15.
  • the angle is the best, which can reduce the rotation range of the wrench handle and better protect the nut from damage. If the adjustment of the sliding lip 4 is not considered, it is basically the same as the different rigid hands. The difference is that the oblique claw 1 is tilted. An angle ⁇ causes the inclined claw 1 and the inclined surface 41 of the adjusting sliding lip 4 to form a gripping jaw. By adjusting the left and right positions of the sliding lip 3 in the X direction, the sliding lip 4 and the oblique claw 1 can be adjusted at Y, The size of the jaws formed in the direction to accommodate different sizes of nuts.
  • a positioning mechanism that can be fixed at any position on the straight claw 2 is provided between the adjusting lip 4 and the straight claw 2.
  • the positioning mechanism is a set screw 3 provided on the side or bottom surface of the adjusting lip 4 so as to be tightly hung on the straight claw 2, and does not easily slide.
  • the positioning mechanism is an interfit function provided on the sliding action surface of the straight claw 2 and the adjustment sliding lip 4. Lock the serrations 5.
  • the same portions as those of the first and second embodiments are not repeated, and the difference is that: as shown in FIG. 8, the adjusting sliding lip 4 is looped over the straight claw 2 and fixed to the screw 6, and the rotary dial 7 is rotated.
  • the screw 6 can be driven to adjust the reciprocating movement of the sliding lip 4, so that the size of the opening can be adjusted to adapt to the nut of different specifications, and the dial 7 and the screw 6 also play the role of locking and adjusting the sliding lip 4.
  • the same parts as the first, second, and third embodiments are not repeated, and the difference is that: as shown in FIG. 9 and FIG. 10, the adjusting sliding lip 4 is supported by the cam 42 and the straight claw 2 The groove 21 is fitted into the groove. Since the screw 6 is welded integrally with the adjusting lip 4, the left and right movement of the adjusting lip 4 can be adjusted by the dialing of the dial 7, so that the size of the opening can be adjusted.
  • Example 5
  • the wrench of the present invention can also be implemented by the following structure: the wrench is provided by the belt.
  • the inclined claw 1 having a square hole and the inclined claw 3 with the rack 4 and the screw-shaped dial 2 are composed as shown in FIG. Therefore, by turning the dial 2, the left and right movement of the sliding lip 3 can be adjusted, so that the size of the opening can be adjusted.

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

Abstract

一种可调节式扳手，包括手柄，所述手柄至少一端设置有互成一定角度形成扳手钳口的直爪（2）与斜爪（1），所述直爪上设置可沿其长度方向移动的调节滑唇（4），所述调节滑唇包括与螺母作用的倾斜面（41），该倾斜面与形成所述扳手钳口的斜爪的内表面（11）平行。该调节式扳手即吸取了呆扳手开口尺寸精确不易打滑的优点，又解决了现有呆扳手开口宽度不可调的问题。同时，该调节式扳手即充分吸取了现有活扳手开口宽度可连续调节的优点，又解决了其波轮和齿条易磨损从而导致打滑或损伤螺母的问题。

Description

说 明 书 一种可调节式扳手 技术领域
本发明涉及一种新型扳手， 具体地说是一种新型可调节的板手。 背景技术
扳手是一种常用的作业工具， 其种类繁多， 根据可调节性分主要 有两种： 活扳手和呆板手。 它们各有其优缺点。
1、 现有呆板手的优缺点
现在的呆扳手基本上都是采用双头设计，既一只呆扳手旋松或旋 紧两个规格的六角螺母。 因此， 工作时要配备多把扳手， 很^^烦。 为了改进现有扳手， 先后有人做了大量的改进工作。 中国发明专利 CN89107375 , 提供了一种可调式多用途扳手， 如图 1所示， 5为呈拇 指状的下握持爪， 它与手柄相连， 1为呈弯曲状的上握持爪， 其上开 有条形孔 3 , 并设有多个铰接位置； 5与 1靠枢轴 4结合在一起， 形 成握持钳口， 钳口的大小， 可以通过调节上握持爪 1与枢轴 4的铰接 位置，或以 4支点转动爪 1的角度来实现。它可用来旋动螺栓、螺帽、 管接头等不同种类， 或者在一预定尺寸范围内之同一种类之连接件， 并且可以适用于多种规格的螺帽或管径。但是， 用这种扳手拧六角螺 帽时， 由于 A点往往为点接触， 所以很容易损伤螺帽的角。
2、 现有活扳手的优缺点：
现有的可调活扳手较受欢迎，因为它可以适应不同尺寸的多种螺 帽，而且其开口宽度是连续可调的。但是其缺点也是 4艮明显的。一是， 容易打滑。 用过活扳手的人都清楚， 若是调节不当很容易打滑， 或损 伤螺母的角。 这是因为开口的调节方向与其受力的方向是一致的， 即 使调节的开口宽度与螺帽的大小相一致， 也会在用力时， 由于调节轮 与齿条间存在间隙， 而使扳手的开口变大， 导致打滑， 或损伤螺母。 二是， 由于设置了调节机构， 制造成本和制造难度相应增加。 工作效 率极低活扳手虽然用于多种规格的六角螺母的松紧，但在使用时需调 节开口宽度，往往需要调解多次才能使扳手的开口宽度与螺母的规格 一致，使用很不方便。若是开口宽度调节不当，很容易损坏螺母的角。 中国发明专利 CN92100748.5 , 提供了一种多用呆扳手， 如图 2所示， 它是在原呆扳手上稍作改动而成的， 具有方便、 实用、 效率等优点。 但它只能适用于 6种固定规格的螺帽， 而且也容易损伤螺帽的角。 中 国实用新型专利 ZL92105567, 公开了一种 "楔块式扳手"， 如图 3所 示， 它在呆板手的两个夹爪的工作面上分别开设滑孔， 各滑孔内放置 楔块。 利用该扳手拧紧螺母时， 两楔块能与螺母紧紧配合， 而当拧动 一次后需要重新更换夹持位置时，不用如传统扳手那样拔出扳手再重 新插入， 而只需要将扳手反向回转即可， 因为反向回转时， 楔块压缩 弹簧， 使钳口变大， 如此可提高了工作效率。 由于该扳手两夹爪的间 距是固定的，工作时仍需要配备若干把扳手，限制了扳手的应用范围， 而且结构复杂， 构件多， 影响其稳定性。 中国实用新型专利 ZL02270676.3 , 提供一种单楔块式扳手， 如图 4所示。 它包括带锯齿 状沟槽的楔块 3和夹爪 1 , 楔块与其中的一个夹爪 4相联， 并可沿该 夹爪的内侧面滑动， 该内侧面与夹爪的夹持面构成的夹角大于 0° 且 小于 90。 ； 楔块和夹爪之间纵向设置弹簧 5。 该扳手在拧动螺母时， 不需将扳手拔出、 再重新插入， 而只需要将扳手反向回转即可， 因为 反向回转时， 楔块压缩弹簧， 使钳口变大， 有利于提高工作效率。 由 于楔块的工作面具有多个夹齿，在拧动夹持物时增大了摩擦力和夹持 力， 能有效的将突持物 "啃住"， 可夹紧秃螺母和圓管件， 起到了管 钳的作用。 但是活扳手容易打滑的缺点依然存在， 且容易损伤螺帽。
综上， 尽管扳手的改进设计很多， 但是均未能从根本上改进现有 活扳手容易打滑的问题和呆板手不可调的问题。这是因为活扳手的开 口调节方向与其受力的方向是一致的， 在用力时， 由于调节轮与齿条 间存在间隙， 而使扳手的开口变大， 导致打滑， 或损伤螺母。 而呆板 手的改进主要集中在如何减少扳手的重新插入，并没有解决其开口可 调的问题。
发明内容
针对现有技术存在的不足， 本发明所要解决的技术问题是， 提供 一种可解决现有呆扳手宽度不可调的问题，同时解决现有活扳手因开 口尺寸调节方向与受力方向一致导致拨轮与齿条容易磨损的问题，以 及拨轮与齿条啮合间隙增大，使用时打滑而损伤螺母的问题的可调节 式扳手。
为解决上述技术问题， 本发明所采取的技术方案是： 一种可调节 式扳手， 包括手柄， 所述手柄至少一端设置有互成一定角度形成一扳 手钳口的直爪与斜爪，所述直爪上设置可沿其长度方向移动的调节滑 唇， 所述调节滑唇包括一与螺母作用的倾斜面， 该倾斜面与形成所述 扳手钳口的斜爪的内表面平行。
上述的可调节式扳手，所述调节滑唇与直爪之间设置有可在直爪 上任意位置固定的定位机构。
上述的可调节式扳手，所述定位机构为设于调节滑唇侧面或底面 的紧定螺釘。
上述的可调节式扳手，所述定位机构为设于直爪与调节滑唇滑动 作用面上的互相配合的锁定锯齿。
上述的可调节式扳手， 所述调节滑唇上设置穿过其内部的螺杆， 在直爪上固定有可旋转的与螺杆配合、调节滑唇沿所述直爪往复运动 的的拨轮。
上述的可调节式扳手， 所述直爪与斜爪之间形成的钳口角度为 5 ° ~ 40°
本发明可调节式扳手的优点是：该发明通过设置互成角度直爪与 斜爪， 在斜爪上设置调节滑唇， 使得调节滑唇的螺母作用面在移动过 程中始终与斜爪内表面平行，使用时螺母的压力与调节滑唇的倾斜面 垂直， 导致其作用力在沿调节滑唇移动方向上分力 4艮小， 不易打滑， 同时具有锁紧功能， 并且吸取了呆板手开口尺寸精确， 不易打滑的优 点， 又解决了现有呆扳手开口宽度不可调的问题， 使工作时不需要配 多把扳手。 同时又充分吸取现有活扳手开口宽度可连续调节的优点， 解决了现有活扳手， 因开口调节方向与受力方向一致， 而带来的拨轮 与齿条容易磨损， 使拨轮与齿条啮合间隙增大， 若调节不当， 4艮容易 打滑， 或损伤螺母的问题。
附图说明
图 1为现有技术中普通可调式多用途扳手的结构图；
图 2为普通多用呆扳手的结构图；
图 3为双楔块式扳手的结构图；
图 4为单楔块式扳手的结构图；
图 5为本发明的结构原理图；
图 6为本发明实施例 1的结构图；
图 7为实施例 2的结构图；
图 8为实施例 3的结构图；
图 9为实施例 4的结构图；
图 10为实施例 4中凸榫与直爪的凹槽相配合的局部截面图； 图 11为实施例 5的结构图；
图 12为实施例 5中 A向视图。
具体实施方式
下面结合附图及具体实施例对本发明做进一步详细说明； 实施例 1:
如图 5、 6所示， 一种可调节式扳手， 包括手柄， 所述手柄至少 一端设置有互成一定角度形成一扳手钳口的直爪 2与斜爪 1 , 所述直 爪 2上设置可沿其长度方向移动的调节滑唇 4, 所述调节滑唇 4包括 一与螺母作用的倾斜面 41 , 该倾斜面 41与形成所述扳手钳口的斜爪 1的内表面 11平行。 扳手由斜爪 1和直爪 2及调节滑唇 4组成， 其 中调节滑唇 4带一倾斜面 41 , 其倾斜角度为 a , 直爪 2与斜爪 1之 间形成的钳口角度为 5° ~ 40。 ， 本发明优选 15。 角为最佳， 既能减 少扳手手柄的转动幅度， 又能更好的保护螺母不受损毁， 如果不考虑 调节滑唇 4的存在， 跟不同的呆板手基本相同， 差别是斜爪 1外倾一 个 α角， 使斜爪 1与调节滑唇 4的倾斜面 41形成一个握持钳口， 通 过调节滑唇 3在 X方向上的左右位置， 便可调节滑唇 4与斜爪 1在 Y,方向上所形成的钳口的大小， 以适应不同尺寸的螺帽。 这样以来， 在拧螺帽时， 作用于调节滑唇 4的力主要是压向直爪 2, 使其倾斜面 41 受垂直力， 而推动调节滑唇 4左右移动的分力很小。 调节滑唇 4 与直爪 2之间设置有可在直爪 2上任意位置固定的定位机构。该定位 机构为设于调节滑唇 4侧面或底面的紧定螺釘 3 , 使之紧箍在直爪 2 上， 不会轻易滑动。
实施例 2:
本实施中， 与实施例 1相同部分不再重复， 其不同之处在于： 如 图 7所示，所述定位机构为设于直爪 2与调节滑唇 4的滑动作用面上 的互相配合的锁定锯齿 5。
实施例 3:
本实施中， 与实施例 1、 2相同部分不再重复， 其不同之处在于： 如图 8所示， 调节滑唇 4活套在直爪 2上并与螺杆 6相固定， 转动拨 轮 7可使螺杆 6带动调节滑唇 4往复移动， 从而可调节开口的大小， 适应不同规格的螺母， 同时拨轮 7与螺杆 6之间还起到了锁定调节滑 唇 4的作用。
实施例 4:
本实施中， 与实施例 1、 2、 3相同部分不再重复， 其不同之处在 于： 如图 9、 图 10所示， 调节滑唇 4依靠自身带有的凸榫 42与直爪 2的凹槽 21相嵌配合， 由于螺杆 6与调节滑唇 4焊接成一体， 因此 通过拨动拨轮 7, 便可调整调节滑唇 4左右移动， 从而可调节开口的 大小。 实施例 5;
本实施中， 与实施例 1、 2、 3、 4相同部分不再重复， 其不同之 处在于： 如图 11、 图 12所示， 本发明的扳手也可以采用以下结构方 式实现：扳手由带有方孔的斜爪 1和带有齿条 4的斜爪 3及螺杆状拨 轮 2组成， 如图 10所示。 因此， 通过拨动拨轮 2, 便可调整滑唇 3 左右移动， 从而可调节开口的大小。
当然， 上述说明并非是对本发明的限制， 本发明也并不限于上述 举例， 本技术领域的普通技术人员， 在本发明的实质范围内， 作出的 变化、 改型、 添加或替换， 都应属于本发明的保护范围。

Claims

权 利 要 求 书
1、 一种可调节式扳手， 包括手柄， 所述手柄至少一端设置有互 成一定角度形成一扳手钳口的直爪与斜爪， 其特征在于： 所述直爪上 设置可沿其长度方向移动的调节滑唇，所述调节滑唇包括一与螺母作 用的倾斜面， 该倾斜面与形成所述扳手钳口的斜爪的内表面平行。
2、 根据权利要求 1所述的可调节式扳手， 其特征是： 所述调节 滑唇与直爪之间设置有可在直爪上任意位置固定的定位机构。
3、 根据权利要求 2所述的可调节式扳手， 其特征是： 所述定位 机构为设于调节滑唇侧面或底面的紧定螺釘。
4、 根据权利要求 2所述的可调节式扳手， 其特征是： 所述定位 机构为设于直爪与调节滑唇滑动作用面上的互相配合的锁定锯齿。
5、 根据权利要求 2、 3或 4所述的可调节式扳手， 其特征是： 所 述调节滑唇上设置穿过其内部的螺杆，在直爪上固定有可旋转的与螺 杆配合、 调节滑唇沿所述直爪往复运动的的拨轮。
6、 根据权利要求 5所示的可调节式扳手， 其特征在于： 所述直 爪与斜爪之间形成的钳口角度为 5° ~ 40。 。
PCT/CN2012/080169 2011-11-18 2012-08-15 一种可调节式扳手 WO2013071781A1 (zh)

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