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Screw withdrawal tool

A technology for removing tools and screws, which is applied in the direction of manufacturing tools, wrenches, wrenches, etc., and can solve problems such as slippage and large gaps

Inactive Publication Date: 2013-06-05
SUZHOU IND PARK XIECHENG PRECISION HARDWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Screws are an indispensable and important part in modern times. Generally, common screws are composed of a screw cap and a screw with a screw head. In the past, various tools for turning screws include: wrench, socket or wrench, etc.; The most common screw tool is the screw socket used with the wrench. The main way of use is to use the wrench to drive the sleeve, and the sleeve fits on the screw head or screw cap. The user drives the sleeve by turning the wrench. When the sleeve rotates with the wrench, the sleeve will rotate the screw head or screw cap together to achieve installation and disassembly operations. However, in the actual installation or disassembly process, due to the gap between the sleeve and the screw head or screw cap There is a large gap between them, which is prone to slipping, especially when working on some damaged screws

Method used

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Embodiment Construction

[0013] See figure 1 , a screw removal tool, including a fastening sleeve 1 and a compression rotating part 2 sleeved on the fastening sleeve 1, the inner side of one end (lower part) of the fastening sleeve 1 is provided with a hexagonal occlusal surface in section 11. Its cross-sectional shape can also be other shapes. The principle is that the more the better, the finer the better, but considering the manufacturability and application, so in this embodiment, its cross-section is hexagonal, and in order to increase its friction force, and its surface can also be covered with small teeth (not shown), the other end (upper) of the fastening sleeve 1 is provided with a connection hole 15, the cross section of the connection hole 15 is quadrangular, and can also be other shapes, its main The purpose is to insert other connecting tools into the connecting hole 15 when the rotary member 2 cannot be rotated and pressed, and the device is rotated to assemble / disassemble the screws. T...

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Abstract

The invention relates to a screw withdrawal tool. The screw withdrawal tool is particularly applicable to damaged screw operation. The screw withdrawal tool comprises a fastening sleeve and a compaction revolving part which is sleeved on the fastening sleeve, wherein occlusion faces are arranged on the inner side of one end of the fastening sleeve, the number of the occlusion faces is a plural, a sleeving combined hole is formed in an intersection position of each occlusion face, expansion joints are formed by upward extending of the fastening sleeve along sleeving combined holes, threads are arranged on the periphery of the fastening sleeve, the compaction revolving part comprises a cylinder portion which is sleeved outside the fastening sleeve, and a handle portion which is connected with the cylinder portion and is used for exerting external force action, and internal threads which are matched with the threads are arranged on the inner side of the cylinder portion. According to the screw withdrawal tool, vertical rotation of the compaction revolving part on the fastening sleeve improves occlusion force between each occlusion face and a screw head, and thus the screw head or a screw cap is assembled or disassembled, the operation is simple, and slipping phenomena are not prone to happening.

Description

technical field [0001] The invention relates to a screw removal tool, which is especially suitable for working on damaged screws. Background technique [0002] Screws are an indispensable and important part in modern times. Generally, common screws are composed of a screw cap and a screw with a screw head. In the past, various tools for turning screws include: wrench, socket or wrench, etc.; The most common screw tool is the screw socket used with the wrench. The main way of use is to use the wrench to drive the sleeve, and the sleeve fits on the screw head or screw cap. The user drives the sleeve by turning the wrench. When the sleeve rotates with the wrench, the sleeve will rotate the screw head or screw cap together to achieve installation and disassembly operations. However, in the actual installation or disassembly process, due to the gap between the sleeve and the screw head or screw cap There is a large gap between them, which is prone to slipping, especially when wo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/06
Inventor 陆建平
Owner SUZHOU IND PARK XIECHENG PRECISION HARDWARE
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