WO2015024405A1 - 一种可固定钳口尺寸的钳子 - Google Patents

一种可固定钳口尺寸的钳子 Download PDF

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Publication number
WO2015024405A1
WO2015024405A1 PCT/CN2014/079576 CN2014079576W WO2015024405A1 WO 2015024405 A1 WO2015024405 A1 WO 2015024405A1 CN 2014079576 W CN2014079576 W CN 2014079576W WO 2015024405 A1 WO2015024405 A1 WO 2015024405A1
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WO
WIPO (PCT)
Prior art keywords
handle
jaw
tooth surface
pliers
gear
Prior art date
Application number
PCT/CN2014/079576
Other languages
English (en)
French (fr)
Inventor
徐卫锋
Original Assignee
绍兴恒力工具有限公司
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 绍兴恒力工具有限公司 filed Critical 绍兴恒力工具有限公司
Publication of WO2015024405A1 publication Critical patent/WO2015024405A1/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
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/12—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears
    • B25B7/123—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears with self-locking toggle levers
    • 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
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/06—Joints
    • B25B7/10—Joints with adjustable fulcrum

Definitions

  • the utility model relates to a pliers capable of fixing a jaw size.
  • a pliers is a hand tool used to hold, fix, or twist, bend, or cut metal wires.
  • FIG. 1 is a schematic view of a prior art pliers. As can be seen from Fig. 1, the pliers only include the two portions of the jaw 1 and the handle 2, which are connected to each other by hinges between the two handles and the two jaws.
  • the existing pliers does not automatically clamp the required workpiece, and mainly relies on the operator's control of the two pliers handles to adjust the opening angle of the jaws and fixes the opening angle of the jaws by the force applied to the two handles; Inconvenience to the operator, that is, when the operator has to add another process in the process of completing the process, the pliers must be lowered, and no pressure is applied to the two handles, and the originally clamped workpiece is Will fall off due to the relaxation of the jaws. When the operator has to complete the process, the pliers are again used to clamp the workpiece, which seriously affects the operator's work efficiency.
  • the purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art, improve the working efficiency of the operator, and provide a pliers capable of fixing the jaw size, thereby maintaining the clamping state of the workpiece, not easy to fall off, and the jaw size can be adjusted and Can be fixed and easy to operate on different sizes of workpieces.
  • a pliers capable of fixing a jaw size comprising two tongs.
  • the two tongs are cross-connected to form a first jaw, a second jaw, a first handle and a second handle.
  • the tongs further comprise a locking device, the locking device is fixedly mounted on the first handle;
  • the locking device comprises a locking button, a locking gear and a positioning gear; the lower end of the locking gear is provided with a first tooth surface; the upper end of the positioning gear is provided with a second tooth surface and a lower end thereof is provided with a long handle;
  • the bottom of the button is coupled to the upper end of the lock gear; the first tooth surface of the lock gear is meshed with the second tooth surface of the positioning gear; and the bottom end of the long handle of the positioning gear is coupled to the second handle.
  • the utility model overcomes the shortcomings and deficiencies of the prior art, improves the working efficiency of the operator, and provides a pliers capable of fixing the jaw size, thereby maintaining the clamping state of the workpiece, not easy to fall off, the jaw size can be adjusted and Fixed functions and ease of operation for workpieces of different sizes.
  • the bottom of the lock button is provided with a bump
  • the upper end of the lock gear is provided with a groove
  • the bump is embedded in the groove and can move left and right in the groove. It is easier to realize the control of the lock gear by the lock button by setting the bump and the groove, so that the lock device is effectively controlled.
  • the first tooth surface and the second tooth surface are respectively a concave curved tooth surface and a convex curved tooth surface; or the first tooth surface and the second tooth surface are respectively a convex curved tooth surface and a concave curved tooth surface Or the first tooth surface and the second tooth surface are respectively two inclined tooth faces having the same inclination.
  • the gear operation principle is used to achieve the fixed and adjustable jaw size.
  • the plurality of settings of the first flank and the second flank can be combined according to actual needs to select a suitable structure to ensure its usability and Easy to implement.
  • a jaw ratchet is respectively disposed in the middle of the first jaw and the second jaw.
  • the jaw ratchet has two states of bouncing and retracting, and when the bouncing state is in a bouncing state, the gripping force is rotated; when the retracting state is in a retracted state, the pliers of the fixed jaw size are unstressed relative to the gripping object. Idle motion. This allows the pliers to reciprocate quickly, allowing the pliers in the fixed jaw size to maintain a good working angle without the need to loosen the jaws to adjust the angle.
  • the locking device further includes a spring, one end of the spring being coupled to a side of the positioning gear, and the other end of the spring being coupled to the first handle.
  • the pulling force of the spring on the positioning gear can restore the original state of the sliding lock gear in the non-operating state, complete its reset; and the distance at which the positioning gear slides can be appropriately controlled.
  • a port is provided at the junction of the second handle and the long handle, and the port is in the shape of a hole, an elongated strip or a long groove.
  • the port shape is set, wherein the hole shape facilitates the fixing of the positioning gear; the long groove shape or the elongated strip arrangement enables the fixed position of the bottom end of the long handle to be transferred to increase the fixing and adjustment range of the jaw angle.
  • the first jaw includes a first portion and a second portion, the second jaw includes a bent portion; the first portion and the second portion are hinged to form a gap in the middle of the first jaw and The first handle is connected, and the bent portion passes through the gap and is connected to the second handle.
  • the use of such an arrangement increases the adjustment range of the jaw size and increases the range of the fixed size of the jaws.
  • the first jaw and the second jaw are bilaterally symmetrical, and the first jaw and the second jaw are coupled to the first handle and the second handle respectively via a hinge shaft.
  • the settings here expand the range of use of the locking device.
  • the first handle further includes an LED light fitting, the LED light fitting being fixed to the locking device.
  • the LED light fittings provide illumination for the work area, making it easy to watch the operation.
  • the clampable jaw size pliers further includes a non-slip handle sleeve that fits over the two handles.
  • Non-slip handle cover Increases the friction between the hand and the handle, and has the function of anti-slip and misalignment; and because the anti-slip handle cover is made of insulating material, it also has an insulating function to prevent the operator from getting an electric shock.
  • Figure 1 is a schematic view of a prior art pliers.
  • FIG. 2 is a perspective view of the pliers of the present invention capable of fixing the jaw size.
  • FIG. 3 is an exploded perspective view of the components of the pliers of the present invention capable of fixing the jaw size.
  • FIG. 4 is a schematic view of the locking device of the pliers of the utility model capable of fixing the jaw size.
  • FIG. 5 is an exploded perspective view of the first jaw of the pliers of the present invention capable of fixing the jaw size.
  • Figure 6 is a schematic view of a second embodiment of the pliers of the present invention which can be fixed to the jaw size.
  • Figure 7 is a schematic view of a third embodiment of the pliers of the present invention which can be fixed to the jaw size.
  • FIG. 2 is a perspective view of the pliers of the utility model capable of fixing the jaw size
  • FIG. 3 is an exploded view of the components of the pliers of the utility model capable of fixing the jaw size
  • FIG. It is a schematic diagram of the locking device of the pliers of the utility model which can fix the jaw size.
  • the clampable size pliers 10 of the present embodiment includes two caliper bodies, a locking device 16 and a non-slip handle cover 18.
  • the two calipers are cross-connected to form a first jaw 11 , a second jaw 12 , a first handle 14 and a second handle 15 .
  • the non-slip handle sleeves 18 are respectively sleeved on the first handle 14 and the second handle 15 .
  • the locking device 16 is fixed to the first handle 14.
  • the locking device 16 includes a lock button 161, a lock gear 162, a positioning gear 163, and a spring 164.
  • the bottom end of the lock gear 161 is connected to the upper end of the lock gear 162, the lower end of the lock gear 162 is engaged with the upper end of the positioning gear 163; the lower end of the positioning gear 163 is fixed on the second handle 15;
  • One end of the spring 164 is coupled to a side of the positioning gear 163, and the other end of the spring 164 is coupled to the first handle 14.
  • the lock button 161 includes a bump 161a that is fixedly disposed at the bottom thereof.
  • the lock gear 162 includes a recess 162a and a first flank 162b disposed at an upper end thereof, the first serration 162b being disposed at a lower end thereof.
  • the positioning gear 163 includes a second flank 163a and a long shank 163b, the second flank 163a is disposed at an upper end thereof, and the long shank 163b is disposed at a lower end thereof.
  • the bump 161a in the lock button 161 is fitted into the recess 162a and is movable left and right in the recess 162a.
  • the first flank 162b and the second flank 163a are in meshing engagement.
  • the first tooth surface 162b is a concave curved tooth surface
  • the second tooth surface 163a is a convex curved surface.
  • the bottom end of the long handle 163b is coupled to the second handle 15.
  • a port 151 is provided at the junction of the second handle 15 and the long handle, and the port 151 is in the shape of a hole, an elongated strip or a long groove.
  • the shape of the port 151 is arranged, wherein the hole shape is favorable for fixing the positioning gear 163; the long groove shape or the long strip shape realizes that the fixed position of the bottom end of the long handle 163b can be transferred to increase the fixing of the jaw angle. And adjustment range.
  • a jaw ratchet 13 is respectively disposed in the middle of the first jaw 11 and the second jaw 12.
  • FIG. 5 is a schematic exploded view of the jaw of the pliers of the present invention.
  • the first jaw 11 includes a first portion 111 and a second portion 112.
  • the second jaw 12 includes a bent portion 121.
  • the first portion 111 and the second portion 112 are firstly connected by a hinge.
  • the gap in the middle of the jaw 11 is connected to the first handle 11, and the bent portion 121 passes through the gap and is integrated with the second handle 15.
  • first tooth surface 162b and the second tooth surface 163a are divided into a convex arc tooth surface and a concave arc tooth surface; the first tooth surface 162b and the second tooth surface 163a may also be set to have the same inclination respectively. Two inclined tooth faces.
  • FIG. 4 are used as an explanatory diagram.
  • the lock button 161 When the lock button 161 is turned to the right, the first handle 14 and the second handle 15 are locked.
  • the lock button 161 is moved while the bump 161a is inclined downward to the left and against the left inner side wall of the recess 162a, causing the lock gear 162 to tilt to the right.
  • the right end of the first tooth surface 162a of the lock gear 162 that is tilted to the right is in contact with the left end of the second tooth surface 163a of the positioning gear 163.
  • the bottom end of the long handle 163b is connected to the second handle 15, the opening angle between the first handle 14 and the second handle 15 is controlled.
  • the positioning gear 163 When a clamping force is applied to the two handles, the positioning gear 163 is subjected to a thrust, and the second tooth surface 163a is geared from right to left along the first tooth surface 162a, that is, the second tooth surface 163a and The first flank 162a is meshingly engaged. Since the second tooth surface 163a and the first tooth surface 162a are in mesh with each other, the second tooth surface 163a cannot be reversely moved, thereby achieving fixation of the jaw size. Meanwhile, since the second jaw 12 passes through the gap in the first jaw 11 and is integrated with the second handle 15 in this embodiment, the first jaw 11 can be bent at the second jaw 12. Discount 121 free activities.
  • the pliers 10 When the pliers 10 performs the clamping action, the first jaw 11 moves toward the jaws along the bend 121, and the second jaw 12 is stationary to clamp the workpiece. And since the jaw ratchet 13 has two states of bouncing and retracting, when the bobbin is in the pop-up state, the gripper is forced to rotate; when it is in the retracted state, the pliers of the fixed jaw size are not opposed to the gripper The idling movement of force. This allows the pliers to reciprocate quickly, allowing the pliers of the fixed jaw size in operation to maintain a good working angle without the need to loosen the jaws to adjust the angle. In this state, as long as the lock button 161 is not released, the jaws can be clamped and maintained in a clamped state.
  • the lock button 161 When the workpiece is not required to be clamped, the lock button 161 is toggled to the left to unlock the lock position control of the lock gear 162, and the tension of the spring 164 on the positioning gear 163 causes the positioning gear 163 to be fast. Return to the original position.
  • the engagement surface of the lock gear 162 and the positioning gear 163 are separated, that is, the first tooth surface 162b is separated from the second tooth surface 163a.
  • the lock gear 162 and the positioning gear 163 are freely movable.
  • the two handles can be opened or clamped, and the two jaws can be freely opened or clamped, and the dimensions between the two jaws can be freely changed.
  • the non-slip handle sleeve 18 can be fitted into the first handle 14 and the second handle 15, respectively.
  • FIG. 6 is a schematic view showing a second embodiment of the pliers of the present invention.
  • This embodiment is similar to the structure of Embodiment 1, except that: the first jaw 21 and the second jaw 22 of the clampable jaw size 10 are bilaterally symmetrical, and the first jaw 21 and the second The jaws 22 are coupled to the first handle 14 and the second handle 15, respectively, by a hinge shaft. That is, the two calipers are cross-connected by the hinge axis A and the caliper body is divided into a jaw portion and a handle portion by the hinge axis A.
  • the locking device 16 is mounted on the handle of the prior art pliers of Figure 1. The two jaws in this structure will move correspondingly with the movement of the two handles, and the size of the two jaws is fixed by the opening angle of the locking device fixing the handle.
  • FIG. 7 is a schematic view showing a third embodiment of the pliers of the present invention.
  • the structure of the embodiment is substantially the same as that of the embodiment 1 or the embodiment 2, and the difference is: the first handle 14 further includes an LED lamp fitting 17, and the LED lamp fitting 17 is fixed on the locking device 16.
  • the LED light fittings 16 can be activated to illuminate the working area and provide illumination.
  • the utility model overcomes the shortcomings and deficiencies of the prior art, improves the working efficiency of the operator, and provides a pliers capable of fixing the jaw size, thereby maintaining the clamping state of the workpiece, not easily falling off, and the jaws. Adjustable size, fixed function and ease of operation for different sizes of workpieces.

Abstract

一种可固定钳口尺寸的钳子（10），其包括两个钳体和锁位装置（16）。该两钳体交叉连接形成第一钳口（11）、第二钳口（12）、第一手柄（14）和第二手柄（15），该锁位装置固定安装在该第一手柄上；该锁位装置包括锁位按钮（161）、锁位齿轮（162）和定位齿轮（163）；该锁位齿轮的下端设有第一齿面（162b）；该定位齿轮上端设有第二齿面（163a）及其下端设有长柄（163b）；该锁位按钮的底部和该锁位齿轮的上端连接；该锁位齿轮的第一齿面与该定位齿轮的第二齿面啮合相接；该定位齿轮的长柄底端与该第二手柄连接。该可固定钳口尺寸的钳子，实现维持工件的夹紧状态、不易脱落、钳口尺寸可调节和可固定的功能和对不同尺寸工件操作的方便。

Description

一种可固定钳口尺寸的钳子
技术领域
本实用新型涉及一种可固定钳口尺寸的钳子。
背景技术
钳子是一种用于夹持、 固定加工工件或者扭转、 弯曲、 剪断金属丝线的手工工具。
请参阅图 1， 图 1为现有技术中的钳子的示意图。 由图 1可知， 该钳子只包括钳口 1和 手柄 2这两个部分， 其由两手柄和两钳口是通过铰链相互连接在一起的。 该现有钳子不会自 动夹紧所需工件， 其主要依靠操作者对两钳柄的控制而实现对钳口张开角度的调节并且利用 对两手柄施加的力固定钳口的张开角度； 为操作者带来不便， 即当操作者在完成这一工序的 过程中还要附加另一工序时， 就必须把钳子放下， 此时无压力施加在两手柄上， 原本被夹紧 的工件就会由于钳口的松弛脱落。 当操作者要接着完成这道工序时， 又要重新利用钳子夹紧 工件， 这样严重影响了操作者的工作效率。
发明内容
本实用新型的目的在于克服现有技术的缺点与不足， 提高操作者的工作效率， 提供一种 可固定钳口尺寸的钳子， 实现维持工件的夹紧状态、 不易脱落、 钳口尺寸可调节和可固定的 功能和对不同尺寸工件操作的方便。
本实用新型是通过以下技术方案实现的： 一种可固定钳口尺寸的钳子， 其包括两个钳体。 该两钳体交叉连接形成第一钳口、 第二钳口、 第一手柄和第二手柄， 重要的是： 该钳子还包 括锁位装置， 该锁位装置固定安装在该第一手柄上； 该锁位装置包括锁位按钮、 锁位齿轮和 定位齿轮； 该锁位齿轮的下端设有第一齿面； 该定位齿轮上端设有第二齿面及其下端设有长 柄； 该锁位按钮的底部和该锁位齿轮的上端连接； 该锁位齿轮的第一齿面与该定位齿轮的第 二齿面啮合相接； 该定位齿轮的长柄底端与该第二手柄连接。 本实用新型克服了现有技术的 缺点与不足， 提高了操作者的工作效率， 提供一种可固定钳口尺寸的钳子， 实现维持工件的 夹紧状态、 不易脱落、 钳口尺寸可调节和可固定的功能和对不同尺寸工件操作的方便。
该锁位按钮的底部设有凸块， 该锁位齿轮的上端设有凹槽， 该凸块嵌入该凹槽中并可在 该凹槽中左右移动。 通过设置凸块和凹槽更加容易实现该锁位按钮对该锁位齿轮的控制， 使 锁位装置得到有效的控制。
该第一齿面和该第二齿面分别为凹弧形齿面和凸弧形齿面； 或者该第一齿面和该第二齿 面分别为凸弧形齿面和凹弧形齿面； 又或者该第一齿面和该第二齿面分别为具有相同倾斜度 的两个倾斜齿面。 此处利用了齿轮运作原理实现钳口尺寸的固定和可调节。 而且该第一齿面 和该第二齿面的多种设置， 可根据现实需要而选择适合的结构进行组合， 保证其可用性以及 易于实施。
该第一钳口和该第二钳口的中部分别设有钳嘴棘轮。 该钳嘴棘轮具有弹开和回缩两个状 态， 其处于弹开状态时， 夹持物受力旋转； 其处于回缩状态时， 该可固定钳口尺寸的钳子相 对夹持物做不受力的空转运动。 这样可使钳子快速地往复运行， 让在操作中的可固定钳口尺 寸的钳子始终保持很好的作业角度而不需要松开钳口去调整角度。
该锁位装置还包括弹簧， 该弹簧的一端与该定位齿轮的侧面连接， 该弹簧的另一端与该 第一手柄连接。 利用该弹簧对定位齿轮的拉力可恢复不在工作状态中的滑动锁位齿轮的原始 状态， 完成其复位； 并且可以适当地控制定位齿轮滑动的距离。
该第二手柄与该长柄的连接处设有端口， 该端口为孔状、 长条形或长槽状。 该端口形状 的设置， 其中孔状有利于对定位齿轮的固定； 长槽状或长条形的设置实现了该长柄底端固定 的位置可转移而增加对钳口角度的固定和调节范围。
该第一钳口包括第一分部和第二分部， 该第二钳口包括弯折部； 该第一分部和该第二分 部通过铰连接形成第一钳口中部的空隙并与该第一手柄连接， 该弯折部穿过该空隙并与该第 二手柄连接。利用这样的设置加大了钳口尺寸的调节范围和增加了钳子钳口固定尺寸的范围。
该第一钳口和该第二钳口左右对称， 并且该第一钳口和该第二钳口通过铰链轴分别与该 第一手柄和该第二手柄连接。 此处的设置扩大了该锁位装置的使用范围。
该第一手柄还包括 LED灯配件， 该 LED灯配件固定在该锁位装置上。 当光线不足时， LED 灯配件为工作区域提供照明， 方便对操作过程的观看。
该可固定钳口尺寸的钳子还包括防滑手柄套， 该防滑手柄套套在两手柄上。 防滑手柄套 增加手与手柄之间的摩擦， 具有防滑和防止错位的功能； 并且由于防滑手柄套为绝缘材料， 也具有绝缘功能， 避免操作者触电。
为了更好地理解和实施， 下面结合附图详细说明本实用新型。
附图说明
图 1是现有技术钳子示意图。
图 2是本实用新型可固定钳口尺寸的钳子的立体图。
图 3是本实用新型可固定钳口尺寸的钳子的各部件分解示意图。
图 4是本实用新型可固定钳口尺寸的钳子的锁位装置示意图。
图 5是本实用新型可固定钳口尺寸的钳子的第一钳口分解示意图。
图 6是本实用新型可固定钳口尺寸的钳子第二实施例示意图。
图 7是本实用新型可固定钳口尺寸的钳子第三实施例示意图。
具体实施方式 实施例 1
请同时参阅图 2、 图 3和图 4， 其中图 2是本实用新型可固定钳口尺寸的钳子的立体图， 图 3是本实用新型可固定钳口尺寸的钳子的各部件分解示意图， 图 4是本实用新型可固定钳 口尺寸的钳子的锁位装置示意图。 本实施例的可固定钳口尺寸的钳子 10， 其包括两个钳体、 锁位装置 16和防滑手柄套 18。 该两钳体交叉连接形成第一钳口 11、 第二钳口 12、 第一手柄 14和第二手柄 15， 该防滑手柄套 18分别套在该第一手柄 14和该第二手柄 15上， 该锁位装 置 16固定在该第一手柄上 14。
该锁位装置 16包括锁位按钮 161、 锁位齿轮 162、 定位齿轮 163和弹簧 164。 该锁位按 钮 161的底部和该锁位齿轮 162的上端连接， 该锁位齿轮 162的下端与该定位齿轮 163的上 端啮合相接； 该定位齿轮 163的下端固定在该第二手柄 15上； 该弹簧 164的一端与该定位齿 轮 163的侧面连接， 该弹簧 164的另一端与该第一手柄 14连接。
具体地， 该锁位按钮 161包括的凸块 161a， 该凸块 161a固定设置在其底部。
该锁位齿轮 162包括凹槽 162a和第一齿面 162b， 该凹槽 162a设置在其上端， 该第一齿 面 162b设置在其下端。
该定位齿轮 163包括第二齿面 163a和长柄 163b， 该第二齿面 163a设置在其上端， 该长 柄 163b设置在其下端。
该锁位按钮 161中的凸块 161a嵌入该凹槽 162a中并可在该凹槽 162a中左右移动。该第 一齿面 162b和该第二齿面 163a啮合相接。 在本实施例中， 该第一齿面 162b为凹弧形齿面， 该第二齿面 163a为凸弧形面。 该长柄 163b的底端与该第二手柄 15连接。
该第二手柄 15与该长柄的连接处设有端口 151， 该端口 151为孔状、 长条形或长槽状。 该端口 151形状的设置， 其中孔状有利于对该定位齿轮 163的固定； 长槽状或长条形的设置 实现了该长柄 163b底端固定的位置可转移而增加对钳口角度的固定和调节范围。
该第一钳口 11和第二钳口 12的中部分别设有钳嘴棘轮 13。
请同时参阅图 5， 图 5是是本实用新型可固定钳口尺寸的钳子的一钳口分解示意图。 该 第一钳口 11包括第一分部 111和第二分部 112， 该第二钳口 12包括弯折部 121 ; 该第一分部 111和该第二分部 112通过铰连接形成第一钳口 11中部的空隙并与该第一手柄 11连接， 该 弯折部 121穿过该空隙并与该第二手柄 15连成一体。
另外， 本实施例中还具有其它变形实施例。 例如： 该第一齿面 162b和该第二齿面 163a 分为设为凸弧齿面和凹弧齿面； 该第一齿面 162b和第二齿面 163a还可以分别设为具有相同 倾斜度的两个倾斜齿面。
本实施例的工作过程如下： 本实施例以图 2和图 4作为说明示意图， 当将该锁位按钮 161向右拨动时， 会对该第一 手柄 14和该第二手柄 15具有锁住状态的作用；即向右拨动该锁位按钮 161，同时该凸块 161a 向左下方倾斜并且顶住该凹槽 162a的左内侧壁， 则致使该锁位齿轮 162往右翘。往右翘的锁 位齿轮 162的第一齿面 162a右端点便与该定位齿轮 163的第二齿面 163a左端点接触。 并且 由于该长柄 163b的底端与该第二手柄 15连接， 使第一手柄 14和第二手柄 15之间的张开角 度得以控制。 当对两手柄施加夹紧的力时， 该定位齿轮 163受到一推力， 其第二齿面 163a沿 着第一齿面 162a从右到左做齿轮运动，即此时该第二齿面 163a和该第一齿面 162a啮合相接。 由于该第二齿面 163a和该第一齿面 162a相互啮合， 故该第二齿面 163a不能进行逆向运动， 从而实现对钳口尺寸的固定。 同时， 由于本实施例中第二钳口 12穿过该第一钳口 11中的空 隙并与该第二手柄 15连成一体， 故该第一钳口 11可在第二钳口 12的弯折处 121 自由活动。 当钳子 10执行夹紧动作时， 该第一钳口 11会沿着该弯折处 121向其钳嘴方向移动， 而该第 二钳口 12是固定不动的， 从而夹紧工件。 并且由于钳嘴棘轮 13具有弹开和回缩两个状态， 其处于弹开状态时， 夹持物受力旋转； 其处于回缩状态时， 该可固定钳口尺寸的钳子相对夹 持物做不受力的空转运动。 这样可使钳子快速地往复运行， 让在操作中的可固定钳口尺寸的 钳子始终保持很好的作业角度而不需要松开钳口去调整角度。 在此状态下， 只要不松开锁位 按钮 161， 就可以使钳口夹紧并维持夹紧状态。
当不需要夹紧工件时， 将该锁位按钮 161向左拨动， 解开其对该锁位齿轮 162的锁位控 制， 并且该弹簧 164对该定位齿轮 163的拉力使该定位齿轮 163快速恢复原位。张开手柄后， 该锁位齿轮 162和该定位齿轮 163的啮合面分离， 即该第一齿面 162b与该第二齿面 163a分 离。 此时该锁位齿轮 162和该定位齿轮 163都可以自由活动。 并且两手柄可以张开也可以夹 紧， 两个钳口也可以自由张开或夹紧， 两个钳口之间的尺寸可以自由改变。 当直接握住手柄 觉得易滑落或者会对手部造成不适时， 可将防滑手柄套 18分别套入第一手柄 14和第二手柄 15中。
实施例 2
请参阅图 6， 图 6是本实用新型可固定钳口尺寸的钳子第二实施例示意图。 本实施例与 实施例 1的结构相似， 其区别在于： 该可固定钳口尺寸的钳子 10的第一钳口 21和第二钳口 22左右对称， 并且该第一钳口 21和该第二钳口 22通过铰链轴分别与该第一手柄 14和该第 二手柄 15连接。即利用铰链轴 A将两个钳体交叉连接并通过铰链轴 A将钳体分为钳口部分和 手柄部分。也可理解为将该锁位装置 16安装在图 1所述现有技术中的钳子的手柄上。这种结 构中的两钳口都会随着两手柄的运动而做相应的运动， 通过锁位装置固定手柄的张开角度而 固定两钳口的尺寸。 实施例 3
请参阅图 7， 图 7是本实用新型可固定钳口尺寸的钳子第三实施例示意图。 本实施例和 实施例 1或实施例 2的结构基本一致， 其区别在与： 该第一手柄 14还包括 LED灯配件 17， 该 LED灯配件 17固定在该锁位装置 16上。则当工作环境比较阴暗时，可启动 LED灯配件 16， 利用其照亮工作区域， 提供了照明作用。
相对于现有技术， 本实用新型克服了现有技术的缺点与不足， 提高操作者的工作效率， 提供一种可固定钳口尺寸的钳子， 实现维持工件的夹紧状态、 不易脱落、 钳口尺寸可调节、 可固定的功能和对不同尺寸工件操作的方便。
本实用新型并不局限于上述实施方式， 如果对本实用新型的各种改动或变形不脱离本实用新 型的精神和范围， 倘若这些改动和变形属于本实用新型的权利要求和等同技术范围之内， 则 本实用新型也意图包含这些改动和变形。

Claims

权利 要 求 书
1、 一种可固定钳口尺寸的钳子， 其包括两个钳体， 该两钳体交叉连接形成第一钳口、 第二 钳口、 第一手柄和第二手柄， 其特征在于： 还包括锁位装置， 该锁位装置固定安装在该 第一手柄上； 该锁位装置包括锁位按钮、 锁位齿轮和定位齿轮； 该锁位齿轮的下端设有 第一齿面； 该定位齿轮上端设有第二齿面及其下端设有长柄； 该锁位按钮的底部和该锁 位齿轮的上端连接； 该锁位齿轮的第一齿面与该定位齿轮的第二齿面啮合相接； 该定位 齿轮的长柄底端与该第二手柄连接。
2、 根据权利要求 1 所述的可固定钳口尺寸的钳子， 其特征在于： 该锁位按钮的底部设有凸 块， 该锁位齿轮的上端设有凹槽， 该凸块嵌入该凹槽中并可在该凹槽中左右移动。
3、 根据权利要求 1 所述的可固定钳口尺寸的钳子， 其特征在于： 该第一齿面和该第二齿面 分别为凹弧形齿面和凸弧形齿面； 或者该第一齿面和该第二齿面分别为凸弧形齿面和凹 弧形齿面； 又或者该第一齿面和该第二齿面分别为具有相同倾斜度的两个倾斜齿面。
4、 根据权利要求 1 所述的可固定钳口尺寸的钳子， 其特征在于： 该第一钳口和该第二钳口 的中部分别设有钳嘴棘轮。
5、 根据权利要求 1 所述的可固定钳口尺寸的钳子， 其特征在于： 该锁位装置还包括弹簧， 该弹簧的一端与该定位齿轮的侧面连接， 该弹簧的另一端与该第一手柄连接。
6、 根据权利要求 1 所述的可固定钳口尺寸的钳子， 其特征在于： 该第二手柄与该长柄的连 接处设有端口， 该端口为孔状、 长条形或长槽状。
7、 根据权利要求 4所述的可固定钳口尺寸的钳子， 其特征在于： 该第一钳口包括第一分部 和第二分部， 该第二钳口包括弯折部； 该第一分部和该第二分部通过铰连接形成第一钳 口中部的空隙并与该第一手柄连接， 该弯折部穿过该空隙并与该第二手柄连接。
8、 根据权利要求 4所述的可固定钳口尺寸的钳子， 其特征在于： 该第一钳口和该第二钳口 左右对称， 并且该第一钳口和该第二钳口通过铰链轴分别与该第一手柄和该第二手柄连 接。
9、 根据权利要求 1所述的可固定钳口尺寸的钳子， 其特征在于： 该第一手柄还包括 LED灯 配件， 该 LED灯配件固定在该锁位装置上。
10、 根据权利要求 1所述的可固定钳口尺寸的钳子， 其特征在于： 该可固定钳口尺寸的钳 子还包括防滑手柄套， 该防滑手柄套套在两手柄上。
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