WO2024051142A1 - 一种防止过度上紧的超声刀用扭力扳手 - Google Patents

一种防止过度上紧的超声刀用扭力扳手 Download PDF

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Publication number
WO2024051142A1
WO2024051142A1 PCT/CN2023/082274 CN2023082274W WO2024051142A1 WO 2024051142 A1 WO2024051142 A1 WO 2024051142A1 CN 2023082274 W CN2023082274 W CN 2023082274W WO 2024051142 A1 WO2024051142 A1 WO 2024051142A1
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WO
WIPO (PCT)
Prior art keywords
wrench
hole
wall
seat
tightening
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PCT/CN2023/082274
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English (en)
French (fr)
Inventor
尹宏屹
郭双梅
张新岗
Original Assignee
思卓瑞(深圳)医疗科技有限公司
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Publication of WO2024051142A1 publication Critical patent/WO2024051142A1/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
    • B25B13/48—Spanners; Wrenches for special purposes
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters

Definitions

  • the utility model relates to the technical field of ultrasonic knife disassembly and assembly wrenches, in particular to a torque wrench for ultrasonic knife that prevents over-tightening.
  • the current ultrasonic knife transducer and the ultrasonic knife arbor are mostly connected by threaded connection.
  • the outer wall of the knife arbor adopts a hexagonal structure, which is convenient for tightening with a wrench.
  • the currently used tightening wrenches still have the following problems in use. question:
  • the tightening force of traditional tightening wrenches is not easy to control. After tightening, the firmness of the connection between the ultrasonic knife and the transducer cannot be controlled. Excessive tightening force will lead to the risk of breakage at the connection between the knife bar or the transducer and even damage to the equipment. If it is damaged and scrapped, the tightening force is too small, which will result in insufficient firmness of the connection between the tool bar and the transducer, which will affect product performance and create surgical risks.
  • the purpose of the present invention is to solve at least one of the technical drawbacks.
  • one purpose of the present invention is to provide a torque wrench for ultrasonic scalpel that prevents over-tightening, so as to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.
  • an embodiment of the present invention provides a torque wrench for an ultrasonic knife that prevents over-tightening, including a wrench body, a groove body is opened at the center of one side edge of the wrench body, and the groove body
  • a wrench seat is provided on the inner wall of the tank, and no less than one fixed block is fixedly connected to the side of the inner wall of the tank.
  • a wrench hole is provided in the center of the wrench seat, and guide grooves are provided on both sides of the surface of the wrench seat.
  • the inner walls of the two guide grooves are slidingly connected with guide blocks, the middle part of one side of the guide block is fixedly connected with a sliding block, and there are through holes on both sides of the wrench seat, and the through holes penetrate Inside the guide groove, the sliding block penetrates through the outer wall of the wrench seat through a through hole.
  • the inner walls of the guide block and the guide groove are provided with compression springs.
  • One side of the sliding block and the fixed block is opened as The inclined surfaces of the sliding block and the fixed block correspond to each other.
  • a through hole is provided at the center of the bottom surface of the inner wall of the tank, and a connecting platform is fixedly connected to the center of one side of the wrench seat, and the diameter of the connecting platform is equal to the diameter of the through hole.
  • the connecting platform is rotatably connected to the through hole, the connecting platform penetrates through the outer wall of the wrench body through the through hole, and the wrench hole penetrates the wrench seat and the connecting platform.
  • the technical effect achieved by adopting the above solution is that by docking the connecting platform with the through hole, the sliding of the wrench seat can be restricted and the stability can be improved.
  • the side of the wrench body close to the tank body is fixedly connected with a sealing cover, the diameter of the sealing cover matches the diameter of the tank body, and the sealing cover completely covers the tank body, so
  • the thickness of the wrench seat matches the distance between the sealing cover and the bottom surface of the inner wall of the tank.
  • a through hole is provided at the center of the sealing cover. The position of the through hole corresponds to the position of the wrench hole.
  • the through hole The diameter of the hole is larger than the diameter of the wrench hole.
  • the technical effect achieved by using the above solution is that the wrench seat can be fixed to the inner wall of the tank through the sealing cover, and the through hole can ensure that the ultrasonic tool can be penetrated.
  • the width of the guide block matches the width of the inner wall of the guide groove
  • the size of the guide block is larger than the size of the through hole
  • the cross-sectional size of the sliding block is consistent with the size of the through hole. Accordingly, the length of the inner wall of the guide groove is greater than the length of the sliding block.
  • the technical effect achieved by using the above solution is that the sliding block can be completely retracted to the inner wall of the guide groove when it is squeezed, and the sliding block is prevented from escaping from the through hole through the blocking of the guide block.
  • the diameter of the compression spring is smaller than the depth of the guide groove, and the length of the compression spring after reset is greater than the length of the inner wall of the guide groove.
  • the technical effect achieved by using the above solution is to make the compression spring press against the guide block, press the sliding block against the outer wall of the wrench seat, and prevent the outer wall of the compression spring from protruding from the outer wall of the guide groove to prevent interference with the sealing cover. superior.
  • the utility model uses the wrench hole to cover the rotating head of the ultrasonic tool to fix the tool, and then rotate the wrench body so that the sliding block can resist the fixed block and drive the wrench seat to rotate, thereby driving the tool to rotate and tightening.
  • After tightening in place continuing to apply tightening force will cause the sliding block to be guided through the inclined plane and retracted to the inner wall of the guide groove, thereby causing the wrench body to rotate and the wrench base to stop tightening to prevent over-tightening from damaging the tool connection.
  • Figure 1 is a schematic diagram of the internal structure of the utility model
  • Figure 2 is a schematic structural diagram of the tank body of the present utility model
  • Figure 3 is a schematic structural diagram of the wrench seat of the present utility model
  • Figure 4 is a schematic structural diagram of the sliding block of the present utility model
  • Figure 5 is a schematic diagram of the utility model in use.
  • Embodiment 1 As shown in Figures 1 to 5, a torque wrench for ultrasonic scalpels that prevents over-tightening is provided. It includes a wrench body 1. A groove body 2 is provided at the center of one side edge of the wrench body 1. The groove body 2 The inner wall of the wrench seat 4 is provided with a wrench seat 4. The middle portions of both sides of the inner wall of the tank body 2 are fixedly connected with fixed blocks 3. A wrench hole 5 is provided at the center of the wrench seat 4. Guide grooves 6 are provided on both sides of the surface of the wrench seat 4.
  • the inner walls of the two guide grooves 6 are slidingly connected with guide blocks 7, the middle part of one side of the guide block 7 is fixedly connected with the sliding block 8, the center of the other side of the guide block 7 is a cylindrical protruding structure, and both sides of the wrench seat 4 There are through holes 12 on both sides.
  • the through holes 12 penetrate into the inside of the guide groove 6.
  • the sliding block 8 penetrates through the outer wall of the wrench seat 4 through the through holes 12.
  • the inner walls of the guide block 7 and the guide groove 6 are provided with a compression spring 9.
  • the compression spring 9 is sleeved on the outer wall of the cylindrical protruding structure of the guide block 7, one side of the sliding block 8 and the fixed block 3 is provided with a slope, and the slopes of the sliding block 8 and the fixed block 3 correspond to each other.
  • a through hole 11 is provided at the center of the bottom surface of the inner wall of the tank body 2, and a connecting platform 13 is fixedly connected to the center of one side of the wrench seat 4.
  • the diameter of the connecting platform 13 is consistent with the through hole 11.
  • the diameter of the wrench body 1 is matched, and the connecting platform 13 is rotatably connected to the through hole 11.
  • the connecting platform 13 penetrates through the outer wall of the wrench body 1 through the through hole 11.
  • the wrench hole 5 penetrates the wrench base 4 and the connecting platform 13, and passes through the connecting platform 13 and the through hole. 11 docking can limit the sliding of the wrench base 4 and improve the stability.
  • a sealing cover 10 is fixedly connected to the side of the wrench body 1 close to the tank body 2.
  • the diameter of the sealing cover 10 matches the diameter of the tank body 2, and the sealing cover 10 completely covers the tank.
  • Body 2 the thickness of the wrench seat 4 matches the distance between the sealing cover 10 and the bottom surface of the inner wall of the tank body 2.
  • a through hole is provided at the center of the sealing cover 10, and the position of the through hole corresponds to the position of the wrench hole 5.
  • the diameter of the through hole is larger than the diameter of the wrench hole 5.
  • the wrench seat 4 can be fixed to the inner wall of the tank body 2 through the sealing cover 10, and the through hole can ensure that the ultrasonic tool can be penetrated.
  • the width of the guide block 7 matches the width of the inner wall of the guide groove 6, the size of the guide block 7 is larger than the size of the through hole 12, and the cross-section size of the sliding block 8 is consistent with the through hole.
  • the inner wall of the guide groove 6 is longer than the length of the sliding block 8, so that the sliding block 8 can be completely retracted to the inner wall of the guide groove 6 when it is squeezed, and is blocked by the guide block 7 to prevent the sliding block from being stuck. The block 8 comes out of the through hole 12.
  • the diameter of the compression spring 9 is smaller than the depth of the guide groove 6, and the length of the compression spring 9 after reset is greater than the length of the inner wall of the guide groove 6, so that the compression spring 9 presses against the guide block. 7. Press the sliding block 8 against the outer wall of the wrench seat 4, and prevent the outer wall of the compression spring 9 from protruding from the outer wall of the guide groove 6 to prevent interference with the sealing cover 10.
  • the advantage of this embodiment is that the cylindrical protruding structure of the guide block 7 can prevent the compression spring 9 from deflecting and improve stability.
  • Embodiment 2 The difference between this embodiment and Embodiment 1 is that the center of the side of the guide block 7 away from the sliding block 8 has a circular groove structure, and one end of the compression spring 9 is placed in the circular groove structure on one side of the guide block 7 Internally, the advantage of this embodiment is that one end of the spring is positioned on the inner wall of the circular groove to prevent the spring from deflecting and at the same time not affecting the slidable stroke of the guide block 7 .
  • a torque wrench for ultrasonic scalpels that prevents over-tightening.
  • the working principle is as follows:
  • Block 3 drives the wrench seat 4 to rotate, thereby driving the tool to rotate and tightening.
  • Block 3 drives the wrench seat 4 to rotate, thereby driving the tool to rotate and tightening.
  • continuing to apply tightening force will cause the sliding block 8 to be guided by the inclined plane and retracted to the inner wall of the guide groove 6, thereby Rotate the wrench body 1 and stop tightening the wrench base 4 to prevent over-tightening from damaging the tool connection.

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

Abstract

本实用新型涉及超声刀拆装扳手技术领域，特别是一种防止过度上紧的超声刀用扭力扳手，包括扳手主体，所述扳手主体一侧边缘的中心处开设有槽体，所述槽体的内壁设置有扳手座。本实用新型的优点在于：通过扳手孔套住超声刀具的转动头，可以固定住刀具，然后转动扳手主体，可以使滑动卡块顶住固定卡块，带动扳手座转动，从而可以带动刀具转动，实现上紧，在上紧到位后，继续施加上紧力，会使滑动卡块通过斜面引导，收回到导向槽的内壁，从而使扳手主体转动，而扳手座停止上紧，防止过度上紧拧坏刀具连接部，而且拆卸时，只需倒转扳手主体，使滑动卡块和固定卡块相互顶紧，可以带动扳手座倒转，实现刀具的拆卸。

Description

一种防止过度上紧的超声刀用扭力扳手 技术领域
本实用新型涉及超声刀拆装扳手技术领域，特别是一种防止过度上紧的超声刀用扭力扳手。
 背景技术
目前的超声刀换能器与超声刀杆连接多采用螺纹连接的方式，刀杆的外壁采用六棱结构，方便使用扳手套住上紧，但是目前所使用的上紧扳手在使用中还存在以下问题：
传统的上紧扳手其上紧力不便于控制，在上紧后无法控制超声刀与换能器连接的牢固度，拧紧力过大会导致刀杆或换能器的连接处出现断裂风险甚至导致设备受损报废，拧紧力过小会使刀杆与换能器的连接牢固度不足，进而导致影响产品性能及产生手术风险。
 实用新型
本实用新型的目的旨在至少解决所述技术缺陷之一。
为此，本实用新型的一个目的在于提出一种防止过度上紧的超声刀用扭力扳手，以解决背景技术中所提到的问题，克服现有技术中存在的不足。
为了实现上述目的，本实用新型一方面的实施例提供一种防止过度上紧的超声刀用扭力扳手，包括扳手主体，所述扳手主体一侧边缘的中心处开设有槽体，所述槽体的内壁设置有扳手座，所述槽体内壁的侧面固定连接有不少于一个固定卡块，所述扳手座的中心处开设有扳手孔，所述扳手座表面的两侧均开设有导向槽，两个所述导向槽的内壁均滑动连接有导向块，所述导向块一侧面的中部固定连接有滑动卡块，所述扳手座的两侧均开设有通孔，所述通孔贯穿入导向槽的内部，所述滑动卡块通过通孔贯穿出扳手座的外壁，所述导向块与导向槽的内壁设置有压紧弹簧，所述滑动卡块与固定卡块的一侧均开设为斜面，所述滑动卡块与固定卡块的斜面相互对应。
由上述任一方案优选的是，所述槽体内壁底面的中心处开设有贯通孔，所述扳手座一侧面的中心处固定连接有连接台，所述连接台的直径与贯通孔的直径相适配，所述连接台与贯通孔转动连接，所述连接台通过贯通孔贯穿出扳手主体的外壁，所述扳手孔贯穿扳手座与连接台。
采用上述方案达到的技术效果是：通过连接台与贯通孔对接，可以限制扳手座滑动，提高稳定性。
由上述任一方案优选的是，所述扳手主体靠近槽体的一侧固定连接有密封盖，所述密封盖的直径与槽体的直径相适配，所述密封盖完全覆盖槽体，所述扳手座的厚度与密封盖和槽体内壁底面之间的间距相适配，所述密封盖的中心处开设有贯穿孔，所述贯穿孔的位置与扳手孔的位置相对应，所述贯穿孔的直径大于扳手孔的直径。
采用上述方案达到的技术效果是：通过密封盖可以将扳手座固定到槽体的内壁，而且贯穿孔可以保证超声刀具可以穿出。
由上述任一方案优选的是，所述导向块的宽度与导向槽内壁的宽度相适配，所述导向块的尺寸大于通孔的尺寸，所述滑动卡块截面的尺寸与通孔的尺寸相适配，所述导向槽内壁的长度大于滑动卡块的长度。
采用上述方案达到的技术效果是：从而使滑动卡块受到挤压时可以完全收回到导向槽内壁，而且通过导向块的阻挡，防止滑动卡块脱出通孔。
由上述任一方案优选的是，所述压紧弹簧的直径小于导向槽的深度，所述压紧弹簧复位后的长度大于导向槽内壁的长度。
采用上述方案达到的技术效果是：从而使压紧弹簧顶紧导向块，将滑动卡块顶紧在扳手座的外壁，而且防止压紧弹簧的外壁凸出导向槽的外壁，防止干涉密封盖盖上。
与现有技术相比，本实用新型所具有的优点和有益效果为：
本实用新型通过扳手孔套住超声刀具的转动头，可以固定住刀具，然后转动扳手主体，可以使滑动卡块顶住固定卡块，带动扳手座转动，从而可以带动刀具转动，实现上紧，在上紧到位后，继续施加上紧力，会使滑动卡块通过斜面引导，收回到导向槽的内壁，从而使扳手主体转动，而扳手座停止上紧，防止过度上紧拧坏刀具连接部，而且拆卸时，只需倒转扳手主体，使滑动卡块和固定卡块相互顶紧，可以带动扳手座倒转，实现刀具的拆卸。
 附图说明
图1为本实用新型的内部结构示意图；
图2为本实用新型槽体的结构示意图；
图3为本实用新型扳手座的结构示意图；
图4为本实用新型滑动卡块的结构示意图；
图5为本实用新型使用时的示意图。
图中：1-扳手主体，2-槽体，3-固定卡块，4-扳手座，5-扳手孔，6-导向槽，7-导向块，8-滑动卡块，9-压紧弹簧，10-密封盖，11-贯通孔，12-通孔，13-连接台。
 实施方式
下面结合附图对本实用新型做进一步的描述，但本实用新型的保护范围不局限于以下所述。
实施例一：如图1至图5所示，一种防止过度上紧的超声刀用扭力扳手，它包括扳手主体1，扳手主体1一侧边缘的中心处开设有槽体2，槽体2的内壁设置有扳手座4，槽体2内壁两侧的中部均固定连接有固定卡块3，扳手座4的中心处开设有扳手孔5，扳手座4表面的两侧均开设有导向槽6，两个导向槽6的内壁均滑动连接有导向块7，导向块7一侧面的中部固定连接有滑动卡块8，导向块7另一侧面的中心处为圆柱突起结构，扳手座4的两侧均开设有通孔12，通孔12贯穿入导向槽6的内部，滑动卡块8通过通孔12贯穿出扳手座4的外壁，导向块7与导向槽6的内壁设置有压紧弹簧9，压紧弹簧9套接于导向块7圆柱突起结构的外壁，滑动卡块8与固定卡块3的一侧均开设为斜面，滑动卡块8与固定卡块3的斜面相互对应。
作为本实用新型的一种可选技术方案，槽体2内壁底面的中心处开设有贯通孔11，扳手座4一侧面的中心处固定连接有连接台13，连接台13的直径与贯通孔11的直径相适配，连接台13与贯通孔11转动连接，连接台13通过贯通孔11贯穿出扳手主体1的外壁，扳手孔5贯穿扳手座4与连接台13，通过连接台13与贯通孔11对接，可以限制扳手座4滑动，提高稳定性。
作为本实用新型的一种可选技术方案，扳手主体1靠近槽体2的一侧固定连接有密封盖10，密封盖10的直径与槽体2的直径相适配，密封盖10完全覆盖槽体2，扳手座4的厚度与密封盖10和槽体2内壁底面之间的间距相适配，密封盖10的中心处开设有贯穿孔，贯穿孔的位置与扳手孔5的位置相对应，贯穿孔的直径大于扳手孔5的直径，通过密封盖10可以将扳手座4固定到槽体2的内壁，而且贯穿孔可以保证超声刀具可以穿出。
作为本实用新型的一种可选技术方案，导向块7的宽度与导向槽6内壁的宽度相适配，导向块7的尺寸大于通孔12的尺寸，滑动卡块8截面的尺寸与通孔12的尺寸相适配，导向槽6内壁的长度大于滑动卡块8的长度，使滑动卡块8受到挤压时可以完全收回到导向槽6内壁，而且通过导向块7的阻挡，防止滑动卡块8脱出通孔12。
作为本实用新型的一种可选技术方案，压紧弹簧9的直径小于导向槽6的深度，压紧弹簧9复位后的长度大于导向槽6内壁的长度，使压紧弹簧9顶紧导向块7，将滑动卡块8顶紧在扳手座4的外壁，而且防止压紧弹簧9的外壁凸出导向槽6的外壁，防止干涉密封盖10盖上。
该实施例的优点在于通过导向块7圆柱突起结构可以防止压紧弹簧9发生偏移，提高稳定性。
实施例二：该实施例与实施例一的区别在于，导向块7远离滑动卡块8一侧面的中心处为圆槽结构，压紧弹簧9的一端套于导向块7一侧面的圆槽结构内部，该实施例的优点在于，弹簧的一端定位于圆槽的内壁，防止弹簧发生偏移，同时不会影像导向块7的可滑动行程。
一种防止过度上紧的超声刀用扭力扳手，工作原理如下：
1）将扳手孔5套住超声刀具的转动头，固定住刀具的转动头；
2）然后转动扳手主体1，可以使滑动卡块8顶住固定卡块3，带动扳手座4转动，从而可以带动刀具转动，实现上紧；
3）上紧到位后，继续施加上紧力，会使滑动卡块8通过斜面引导，收回到导向槽6的内壁，从而使扳手主体1转动，而扳手座4停止上紧，防止过度上紧拧坏刀具连接部；
4）需要拆卸时，只需倒转扳手主体1，使滑动卡块8和固定卡块3相互顶紧，可以带动扳手座4倒转，实现刀具的拆卸。
综上所述，该防止过度上紧的超声刀用扭力扳手，通过扳手孔5套住超声刀具的转动头，可以固定住刀具，然后转动扳手主体1，可以使滑动卡块8顶住固定卡块3，带动扳手座4转动，从而可以带动刀具转动，实现上紧，在上紧到位后，继续施加上紧力，会使滑动卡块8通过斜面引导，收回到导向槽6的内壁，从而使扳手主体1转动，而扳手座4停止上紧，防止过度上紧拧坏刀具连接部，而且拆卸时，只需倒转扳手主体1，使滑动卡块8和固定卡块3相互顶紧，可以带动扳手座4倒转，实现刀具的拆卸。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本实用新型的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
本领域技术人员不难理解，本实用新型包括上述说明书的实用新型内容和具体实施方式部分以及附图所示出的各部分的任意组合，限于篇幅并为使说明书简明而没有将这些组合构成的各方案一一描述。凡在本实用新型的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。
尽管上面已经示出和描述了本实用新型的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本实用新型的限制，本领域的普通技术人员在不脱离本实用新型的原理和宗旨的情况下在本实用新型的范围内可以对上述实施例进行变化、修改、替换和变型。本实用新型的范围由所附权利要求及其等同限定。

Claims (5)

  1. 一种防止过度上紧的超声刀用扭力扳手，其特征在于：包括扳手主体（1），所述扳手主体（1）一侧边缘的中心处开设有槽体（2），所述槽体（2）的内壁设置有扳手座（4），所述槽体（2）内壁的侧面固定连接有不少于一个固定卡块（3），所述扳手座（4）的中心处开设有扳手孔（5），所述扳手座（4）表面的两侧均开设有导向槽（6），两个所述导向槽（6）的内壁均滑动连接有导向块（7），所述导向块（7）一侧面的中部固定连接有滑动卡块（8），所述扳手座（4）的两侧均开设有通孔（12），所述通孔（12）贯穿入导向槽（6）的内部，所述滑动卡块（8）通过通孔（12）贯穿出扳手座（4）的外壁，所述导向块（7）与导向槽（6）的内壁设置有压紧弹簧（9），所述滑动卡块（8）与固定卡块（3）的一侧均开设为斜面，所述滑动卡块（8）与固定卡块（3）的斜面相互对应。
  2. 根据权利要求1所述的一种防止过度上紧的超声刀用扭力扳手，其特征在于：所述槽体（2）内壁底面的中心处开设有贯通孔（11），所述扳手座（4）一侧面的中心处固定连接有连接台（13），所述连接台（13）的直径与贯通孔（11）的直径相适配，所述连接台（13）与贯通孔（11）转动连接，所述连接台（13）通过贯通孔（11）贯穿出扳手主体（1）的外壁，所述扳手孔（5）贯穿扳手座（4）与连接台（13）。
  3. 根据权利要求2所述的一种防止过度上紧的超声刀用扭力扳手，其特征在于：所述扳手主体（1）靠近槽体（2）的一侧固定连接有密封盖（10），所述密封盖（10）的直径与槽体（2）的直径相适配，所述密封盖（10）完全覆盖槽体（2），所述扳手座（4）的厚度与密封盖（10）和槽体（2）内壁底面之间的间距相适配，所述密封盖（10）的中心处开设有贯穿孔，所述贯穿孔的位置与扳手孔（5）的位置相对应，所述贯穿孔的直径大于扳手孔（5）的直径。
  4. 根据权利要求3所述的一种防止过度上紧的超声刀用扭力扳手，其特征在于：所述导向块（7）的宽度与导向槽（6）内壁的宽度相适配，所述导向块（7）的尺寸大于通孔（12）的尺寸，所述滑动卡块（8）截面的尺寸与通孔（12）的尺寸相适配，所述导向槽（6）内壁的长度大于滑动卡块（8）的长度。
  5. 根据权利要求4所述的一种防止过度上紧的超声刀用扭力扳手，其特征在于：所述压紧弹簧（9）的直径小于导向槽（6）的深度，所述压紧弹簧（9）复位后的长度大于导向槽（6）内壁的长度。
PCT/CN2023/082274 2022-09-06 2023-03-17 一种防止过度上紧的超声刀用扭力扳手 WO2024051142A1 (zh)

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