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Large-size multipurpose screw fastening device

A fastening device and large-scale technology, applied to screwdrivers, wrenches, wrench, etc., to achieve the effect of convenient and fast use and simple structure principle

Inactive Publication Date: 2015-10-21
赵美文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In traditional screw fastening tools, there are different screwdrivers to match the cut shapes of different screw ends. When carrying, you need to carry a set of all kinds. For small screwdrivers, there is already a replaceable front end design, but for large size screwdrivers, usually use one-to-one

Method used

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  • Large-size multipurpose screw fastening device
  • Large-size multipurpose screw fastening device
  • Large-size multipurpose screw fastening device

Examples

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Embodiment Construction

[0013] The present invention will be further illustrated below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0014] like Figure 1 to Figure 3 A large-size multi-purpose screw fastening device is shown, including a handle 1, a transmission rod 2, a reinforced variable-diameter cylinder 3, a cut flat end face 4, a hexagonal flat groove 5, a round rod flat groove 6, a cylindrical pressure sleeve 7, and a cut fit Groove 8, adjust cutter head 9.

[0015] One end of the transmission rod 2 is fixedly connected to the middle position of the lower end surface of the handle 1, and the other end is fixedly connected to the upper end surface of the reinforced variable-diameter cylinder 3. 3 on the protr...

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PUM

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Abstract

The invention discloses a large-size multipurpose screw fastening device. The large-size multipurpose screw fastening device comprises a handle, a transmission rod, a strengthening diameter-variable cylinder, a flatly-cut end face, a hexagonal flat groove, a round pole flat groove, a cylinder pressing sleeve, a notch coincidence groove and adjustable tool bits. The large-size multipurpose screw fastening device is simple in structural principle; and through the separation setting of the vertically-movable plugging pressing sleeve and the hexagonal flat groove with an open lower side, a closed square inner cavity can be formed, so that replacement of tool bits with different functions at the lower end is achieved, adjustment can be carried out according to needs, and the large-size multipurpose screw fastening device is rapid and convenient to carry.

Description

technical field [0001] The invention relates to a fastening tool, in particular to a large-size multi-purpose screw fastening device. Background technique [0002] In traditional screw fastening tools, there are different screwdrivers to match the cut shapes of different screw ends. When carrying, you need to carry a set of all kinds. For small screwdrivers, there is already a replaceable front end design, but for large Size screwdrivers are usually used one-to-one. Contents of the invention [0003] The object of the present invention is to provide a large-size multi-purpose screw fastening device to address the shortcomings of the prior art. [0004] In order to achieve the above-mentioned purpose, the method adopted in the present invention is: a large-size multi-purpose screw fastening device, including a handle, a transmission rod, a reinforced variable-diameter cylinder, a cut flat end surface, a hexagonal flat groove, a round rod flat groove, and a cylindrical pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B15/02B25B23/00
CPCB25B15/02B25B23/0007
Inventor 赵美文
Owner 赵美文
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