WO2017147730A1 - 双阶段钳 - Google Patents

双阶段钳 Download PDF

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Publication number
WO2017147730A1
WO2017147730A1 PCT/CN2016/000670 CN2016000670W WO2017147730A1 WO 2017147730 A1 WO2017147730 A1 WO 2017147730A1 CN 2016000670 W CN2016000670 W CN 2016000670W WO 2017147730 A1 WO2017147730 A1 WO 2017147730A1
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WO
WIPO (PCT)
Prior art keywords
pin
main body
stage
connecting rod
handle
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PCT/CN2016/000670
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English (en)
French (fr)
Inventor
莫德超
Original Assignee
莫德超
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Publication date
Application filed by 莫德超 filed Critical 莫德超
Priority to JP2018546728A priority Critical patent/JP6584690B2/ja
Priority to DE112016005121.2T priority patent/DE112016005121B4/de
Publication of WO2017147730A1 publication Critical patent/WO2017147730A1/zh
Priority to US15/995,759 priority patent/US10730165B2/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/2812—Surgical forceps with a single pivotal connection
    • A61B17/2841—Handles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B17/2909—Handles
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/08—Handle constructions with provision for storing tool elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B17/2909—Handles
    • A61B2017/2912—Handles transmission of forces to actuating rod or piston
    • A61B2017/2919—Handles transmission of forces to actuating rod or piston details of linkages or pivot points
    • A61B2017/292—Handles transmission of forces to actuating rod or piston details of linkages or pivot points connection of actuating rod to handle, e.g. ball end in recess
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B2017/2946—Locking means

Definitions

  • the invention relates to a hand tool, a pliers, in particular to a multi-function wrench pliers with two-stage automatic switching, a large opening jaw and a high clamping force. For convenience of reference, it is simply referred to as a two-stage pliers.
  • the existing hand tools especially the small-sized one-handed pliers used in daily use, have relatively simple functions, general performance, and reformed requirements.
  • a two-stage clamp comprising a main body structure (1), a main body structure (2) and a handle (3), characterized by:
  • the upper part of the main body structure (1) is a multi-function jaw, and a pin shaft (5) and a pin shaft (6) are mounted in the middle portion, and the pin shafts (5, 6) are provided with radial through holes and connecting rods in the middle of the axial direction. 7), (8) can move in the through hole, the pin (5, 6) can rotate, can not move axially, the main structure (1) is connected to the spring (13) at the tail, and the other end of the spring (13) is connected to the main body Structure (2), the main structure (1) has a hole at the end, a pin (18) is mounted, and the pin (18) is hinged to the two main structures (1, 2).
  • the upper part of the main structure (2) is a multi-function jaw, and the lower end of the central protruding part is provided with ratchet teeth.
  • the center of the base circle of the ratchet is the center of the pin (18), and the tail of the main structure (2) is the handle.
  • the pliers handle can be hollow structure, and practical small parts can be installed inside the cavity.
  • the upper part of the handle (3) is hinged to the main structure (1) through the pin (16), and is hinged to the pawl (4) by the pin (17) in the vicinity, and the lower part passes through the small pin (15) and the connecting rod.
  • the handle (3) can adopt a hollow structure, and the utility can install practical small parts as needed.
  • the pawl (4) is connected to the connecting rod (7) via a small pin (14), the connecting rod (7) supports a preloading spring (11), and the other end of the spring (11) is pressed against the pin (5). There is a limit nut (9) at the end of the connecting rod (7).
  • the connecting rod (8) supports the preloading spring (12), the other end of the spring (12) is pressed against the pin (6), and the end of the connecting rod (8) has a limiting nut (10).
  • Figure 2 is a schematic diagram of the state of the two-stage clamp in the second stage.
  • Figure 3 is a schematic elevational and side elevational view of the main components (1, 2, 3, 4, 5, 6) with the direct and side views of the components being side by side, and the members (5, 6) showing the pin ( 5, 6) It can rotate, and the middle through hole can be seen from the side view of the pin.
  • a two-stage clamp comprising a main body structure (1), a main body structure (2) and a handle (3), characterized by:
  • the upper part of the main body structure (1) is a multi-function jaw, and a pin shaft (5) and a pin shaft (6) are mounted in the middle portion, and the pin shafts (5, 6) are provided with radial through holes and connecting rods in the middle of the axial direction. 7), (8) can move in the through hole, the pin (5, 6) can rotate, can not move axially, the main structure (1) is connected to the spring (13) at the tail, and the other end of the spring (13) is connected to the main body Structure (2), the main structure (1) has a hole at the end, a pin (18) is mounted, and the pin (18) is hinged to the two body structures (1, 2).
  • the upper part of the main structure (2) is a multi-function jaw, and the lower end of the central protruding part is provided with ratchet teeth.
  • the center of the base circle of the ratchet is the center of the pin (18), and the tail of the main structure (2) is the handle.
  • the pliers handle can be hollow structure, and practical small parts can be installed inside the cavity.
  • the upper part of the handle (3) is hinged to the main structure (1) through the pin (16), and is hinged to the pawl (4) by the pin (17) in the vicinity, and the lower part passes through the small pin (15) and the connecting rod.
  • the handle (3) can adopt a hollow structure, and the utility can install practical small parts as needed.
  • the pawl (4) is connected to the connecting rod (7) via a small pin (14), the connecting rod (7) supports a preloading spring (11), and the other end of the spring (11) is pressed against the pin (5). , the end of the connecting rod (7) has a limit nut (9).
  • the connecting rod (8) supports the preloading spring (12), the other end of the spring (12) is pressed against the pin (6), and the end of the connecting rod (8) has a limiting nut (10).
  • the jaws (2, 3) When clamping or shearing the workpiece with pliers, the jaws (2, 3) are first driven to open the jaws to a size larger than the corresponding size of the workpiece so that the workpiece can be placed in; the preload spring (13) helps Zhang Open the jaws.
  • the jaws (2, 3) When the workpiece is placed in the jaws, the jaws (2, 3) are driven to close; the body structure (1) and the handle (3) are connected by a pin (16) through a small pin (15), The connecting rod (8), the pre-pressing spring (12) and the pin (6) are connected to another place, so that the main structure (1) and the handle (3) form a linkage body, and the handle (3) is pre-compressed when moving.
  • the workpiece prevents the jaw from continuing to close.
  • the operator continues to forcefully close the body structure (2) and the handle (3), and the handle (3) rotates about the fulcrum pin (16).
  • the pawl (4) is driven to engage the main body structure (2) with the cooperation of the preloading spring (11).
  • the continued movement of the handle (3) drives the pawl (4) and drives
  • the main structure (2) and the main structure (1) move relative to each other to realize the closing of the jaws and clamp the workpiece (19); this stage is one of the names of the present invention, called the second stage;
  • the distance between 16, 17) is small. It can be seen from the figure that the linear velocity of the pawl and jaw is very low relative to the linear velocity of the lower end of the handle (3). In other words, the jaw has a very high High clamping force.
  • the stroke of the jaw is small.
  • the clamp is closed to the end and the jaw has not reached the required stroke, it can be used. Hold the two clamps in your hand and stop the jaws from opening Start, then loosen the handle, wait until the handle opens, continue to close the handle, and so on until the jaw reaches the desired stroke.
  • the present invention cleverly utilizes a phased approach, so that even in the case of one-handed manipulation, the opening of the jaws is large and the clamping force is large. Therefore, it can be used as a wrench or as a pliers, a vise, a nutcracker, a water pipe clamp, a water pump pliers, a nail puller, and the like.
  • a spanner wrench When used as a spanner wrench, there is no need to adjust the worm gear, it can quickly fit the nut and work efficiently.
  • the nut is turned, a little training is performed to control the rhythm of opening and closing, and the ratchet wrench is provided.
  • the jaws When twisting a nut that is not very tight, the jaws can clamp the nut in almost any position, regardless of the angle of the nut edge, so that it can be used in certain rotationally restricted spaces and improves work efficiency.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Surgical Instruments (AREA)

Abstract

一种双阶段钳，是一种手动工具，尤其是一种具有双阶段自动切换、具有大开口钳口和高夹持力的多功能扳手钳，包括：第一主体结构(1)、第二主体结构(2)、手柄(3)、棘爪(4)、第一销轴(5)、第二销轴(6)、第一连杆(7)、第二连杆(8)、第一限位螺母(9)、第二限位螺母(10)、第一预压弹簧(11)、第二预压弹簧(12)、支撑弹簧(13)、第一小销轴(15)、第二小销轴(14)、第三销轴(18)、第四销轴(16)、第五销轴(17)。该双阶段钳克服了现有手动工具种类繁多、携带不便、效率低下的问题。

Description

双阶段钳 技术领域
本发明涉及一种手动工具，钳，尤其是一种具有双阶段自动切换、具有大开口钳口和高夹持力的多功能扳手钳，为了便于称呼，姑且简称为双阶段钳。
背景技术
在人们的日常生活、工作等情形中，需要使用种类繁多的手动工具。现有的手动工具，大多数功能单一，或者性能一般。比如老虎钳，开口较小，夹持力较小，使用范围受到很多限制。再比如蜗轮活动扳手，只适用于拧螺母，不能当做钳子使用。某些所谓的多功能工具，其实只是单功能工具的简单组合，使用效果不甚理想。
总之，现有的手动工具，尤其是日常使用的体积较小的单手操控的钳子类，功能比较单一，性能一般，有改革提高的需求。
发明内容
本发明的目的是，提供一种多功能并且某些性能突出的手动工具钳，克服现有手动工具种类繁多、携带不便、效率低下的问题。为此，本发明采用以下技术方案：
1、双阶段钳，包括主体结构(1)、主体结构(2)和手柄(3)，其特征是：
所述主体结构(1)上部为多功能钳口，中部安装有销轴(5)及销轴(6)，销轴(5、6)在轴向中部开有径向贯通孔，连杆(7)、(8)可以在贯通孔内运动，销轴(5、6)可以转动，不能轴向运动，主体结构(1)尾部连接着弹簧(13)，弹簧(13)另一端连接到主体结构(2)，主体结构(1)尾端部开有孔，安装有销轴(18)，销轴(18)铰接着两个主体结构(1、2).
2、主体结构(2)上部为多功能钳口，中部突出部位下端面开有棘齿，棘齿的基圆的圆心为销轴(18)的圆心，主体结构(2)的尾部为钳柄，钳柄可以采用中空结构，空腔里面可以安装实用小部件。
3、手柄(3)上部通过销轴(16)与主体结构(1)铰接，邻近处通过销轴(17)与棘爪(4)铰接，稍下部位通过小销轴(15)与连杆(8)连接，手柄(3)可以采用中空结构，空腔里面可以按需安装实用小零件。
4、棘爪(4)通过小销轴(14)与连杆(7)连接，连杆(7)支承着预压弹簧(11)，弹簧(11)另一端压在销轴(5)上，连杆(7)端部有一个限位螺母(9)。
5、连杆(8)支承着预压弹簧(12)，弹簧(12)另一端压在销轴(6)上，连杆(8)端部有一个限位螺母(10)。
附图说明
本发明通过下文的详细描述并结合附图将能被完全理解，下述附图并不是对本发明的限定，而仅是为了便于解释和理解。
图1是本发明双阶段钳处于第一阶段状态示意图。
图2是双阶段钳处于第二阶段状态示意图.
图3是主要部件(1、2、3、4、5、6)的直视和侧视示意图，构件的直视图和侧视图并排靠近，构件(5、6)图表示的是销轴(5、6)能转动，和销轴侧视能看到中部贯通孔。
图4是钳子处于闭合和打开状态的外观大致示意图，图中只包含了3个主要构件。
具体实施方式
以下结合说明书附图对本发明做进一步说明。
1、双阶段钳，包括主体结构(1)、主体结构(2)和手柄(3)，其特征是：
所述主体结构(1)上部为多功能钳口，中部安装有销轴(5)及销轴(6)，销轴(5、6)在轴向中部开有径向贯通孔，连杆(7)、(8)可以在贯通孔内运动，销轴(5、6)可以转动，不能轴向运动，主体结构(1)尾部连接着弹簧(13)，弹簧(13)另一端连接到主体结构(2)，主体结构(1)尾端部开有孔，安装有销轴(18)，销轴(18)铰接着两个主体结构(1、2)。
2、主体结构(2)上部为多功能钳口，中部突出部位下端面开有棘齿，棘齿的基圆的圆心为销轴(18)的圆心，主体结构(2)的尾部为钳柄，钳柄可以采用中空结构，空腔里面可以安装实用小部件。
3、手柄(3)上部通过销轴(16)与主体结构(1)铰接，邻近处通过销轴(17)与棘爪(4)铰接，稍下部位通过小销轴(15)与连杆(8)连接，手柄(3)可以采用中空结构，空腔里面可以按需安装实用小零件。
4、棘爪(4)通过小销轴(14)与连杆(7)连接，连杆(7)支承着预压弹簧(11)，弹簧(11)另一端压在销轴(5)上，连杆(7)端部有一个限位螺母(9).
5、连杆(8)支承着预压弹簧(12)，弹簧(12)另一端压在销轴(6)上，连杆(8)端部有一个限位螺母(10)。
用钳子夹持或剪切工件时，首先会驱动钳柄(2、3)，使钳口张开到大于工件相应的尺寸，以便能把工件放进去；预压弹簧(13)有助于张开钳口。当把工件放进钳口之后，便驱动钳柄(2、3)使之闭合；主体结构(1)和手柄(3)通过销轴(16)连接一处，通过小销轴(15)、连杆(8)、预压弹簧(12)、销轴(6)连接另一处，于是主体结构(1)和手柄(3)组成了一个联动体，手柄(3)运动时会通过预压缩弹簧(12)的弹力驱动主体结构(1)运动，进而使钳口闭合并且接触工件(19)；在钳口接触到工件之前，闭合钳口所需要的驱动力是很微小的，此时预压缩弹簧(12)提供的预压力足够，弹簧(12)没有被进一步压缩，主体结构(1)和手柄(3)之间没有相对运动，仅靠弹簧力实现钳口闭合，此一阶段便是本发明名称由来之一，称为第一阶段；因为主体结构(1)的长度与主体结构(2)手柄部分的长度之比可以大于1，所以由图可以看出，钳口在第一阶段是能快速闭合的。
当钳口闭合接触到工件时，工件阻止了钳口的继续闭合，此时，操作者继续用力闭合主体结构(2)和手柄(3)，于是手柄(3)绕支点销轴(16)转动，棘爪(4)被带动，在预压弹簧(11)的配合下，啮合主体结构(2)，啮合完成之后，手柄(3)的继续运动，就会驱动棘爪(4)，进而驱动主体结构(2)和主体结构(1)相对运动，实现钳口的闭合，夹持紧工件(19)；此一阶段便是本发明名称由来之一，称为第二阶段；因为销轴(16、17)之间的距离较小，由图可以看出，棘爪、钳口的运动线速度相对于手柄(3)下端部的线速度而言是很低的，换言之，钳口具有很高的夹持力。
钳的第二阶段时钳口的行程较小，当需要夹持柔软的工件，或者剪断较粗的线状物体时，如果钳柄闭合到了尽头，钳口还没有达到所需行程时，可以用手握住两个钳头，阻止钳口开 启，然后松开钳柄，等钳柄张开后继续重复闭合钳柄的动作，以此类推，直至钳口达到所需的行程。
当夹持或剪切结束之后，松开钳柄，钳子主要运动部件便做逆运动，先经历第二阶段，然后进入第一阶段，运动过程不再赘述。限位螺母(9、10)可以调整配合间隙，保证钳子正常工作还有操控手感。在第一阶段中，螺母(9)切合并顶住销轴(5)，使得棘爪与主体结构(2)不接触。
本发明巧妙的利用分阶段的方式，使得即使在单手操控的情况下，也能保证钳口的开度的很大，和夹持力的很大。所以可以用来当做扳手使用也可以当做大力钳、老虎钳、坚果钳、水管钳、水泵钳、拔钉钳等使用。在当做活动扳手使用时，无需调整蜗轮，可以快速贴合螺母，高效率的工作。拧动螺母时，稍加训练，控制好张开和闭合的节奏，就具备了棘轮扳手的功能。在拧动不是很紧的螺母时，钳口可以在几乎任何位置夹紧螺母，而不必考虑螺母边缘的角度，这样便可以在某些转动受限空间处使用，并且提高了工作效率。
本发明图示的钳子的结构，还可以是其他的结构形式，并不影响本发明根本构思的实现。

Claims (5)

  1. 双阶段钳，包括主体结构(1)、主体结构(2)和手柄(3)，其特征是：
    所述主体结构(1)上部为多功能钳口，中部安装有销轴(5)及销轴(6)，销轴(5、6)在轴向中部开有径向贯通孔，连杆(7)、(8)可以在贯通孔内运动，销轴(5、6)可以转动，不能轴向运动，主体结构(1)尾部连接着弹簧(13)，弹簧(13)另一端连接到主体结构(2)，主体结构(1)尾端部开有孔，安装有销轴(18)，销轴(18)铰接着两个主体结构(1、2)。
  2. 根据权利要求1所述的双阶段钳，主体结构(2)上部为多功能钳口，中部突出部位下端面开有棘齿，棘齿的基圆的圆心为销轴(18)的圆心，主体结构(2)的尾部为钳柄，钳柄可以采用中空结构，空腔里面可以安装实用小部件。
  3. 根据权利要求1所述的双阶段钳，手柄(3)上部通过销轴(16)与主体结构(1)铰接，邻近处通过销轴(17)与棘爪(4)铰接，稍下部位通过小销轴(15)与连杆(8)连接，手柄(3)可以采用中空结构，空腔里面可以按需安装实用小零件。
  4. 根据权利要求1所述的双阶段钳，棘爪(4)通过小销轴(14)与连杆(7)连接，连杆(7)支承着预压弹簧(11)，弹簧(11)另一端压在销轴(5)上，连杆(7)端部有一个限位螺母(9)。
  5. 根据权利要求1所述的双阶段钳，连杆(8)支承着预压弹簧(12)，弹簧(12)另一端压在销轴(6)上，连杆(8)端部有一个限位螺母(10)。
PCT/CN2016/000670 2016-03-02 2016-12-05 双阶段钳 WO2017147730A1 (zh)

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US15/995,759 US10730165B2 (en) 2016-03-02 2018-06-01 Two-stage pincer

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CN107150294B (zh) 2019-05-17
CN107150294A (zh) 2017-09-12

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