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Multifunctional screwdriver

A screwdriver, multi-functional technology, used in screwdrivers, wrenches, manufacturing tools, etc., can solve the problems of disengagement of the cutter head, difficult to take out, and the cutter head is easy to fall into the inside of the equipment, etc., to increase life, improve smoothness, improve The effect of feel

Inactive Publication Date: 2018-01-05
JIANGYIN TONGQI HARDWARE ELECTRICAL APPLIANCE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As a derivative of a screwdriver, the multifunctional screwdriver is widely used in dismantling complex equipment because of its replaceable head structure. However, the traditional multifunctional screwdriver has a magnetic head or a spring coil For clamping type positive installation, the cutter head is installed on the screwdriver handle through the installation hole in front of the handle, and the cutter head is easy to disengage due to excessive pulling force, so the cutter head is easy to fall into the screwdriver handle. inside the device, difficult to remove

Method used

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  • Multifunctional screwdriver

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Embodiment Construction

[0018] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0019] Such as figure 1 As shown, the present invention is a multifunctional screwdriver, including a handle, a cylindrical fixed cavity is provided in the middle of the handle, and an annular support protrusion is provided at one end of the fixed cavity. A connecting sleeve, a supporting sleeve and a fixing sleeve are sequentially arranged in the fixed cavity, wherein one end of the connecting sleeve is in contact with the supporting protrusion, and a plurality of strip-shaped protruding keys are arranged in an annular array on the inner wall of the connecting sleeve; the supporting The sleeve is made of nylon, the connecting sleeve and the fixed sleeve are ...

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Abstract

The invention relates to a multifunctional screwdriver, which comprises a handle. A cylindrical fixing cavity is arranged in the middle of the handle, and an annular support protrusion is arranged at one end of the fixing cavity. Connecting sleeve, supporting sleeve and fixing sleeve, wherein one end of the connecting sleeve is in contact with the supporting protrusion, and a number of bar-shaped raised keys are arranged in a circular array on the inner wall of the connecting sleeve; the supporting sleeve is made of insulating material, and the fixing sleeve is fixed through threads. The inner wall of the cavity is fixedly connected, and a top cover is also threaded on the inner wall of the fixed sleeve; a number of bar-shaped grooves corresponding to the raised keys are arranged on the cutter head, and the side of the bar-shaped groove corresponding to the end of the cutter head is Open structure, the cutter head is slidably connected with the connecting sleeve through a strip groove, and a top block is also arranged in the fixed cavity, and the top block is located between the end of the cutter head and the top cover.

Description

technical field [0001] The invention relates to a multifunctional screwdriver, which belongs to the field of hardware tools. Background technique [0002] As a derivative of a screwdriver, the multifunctional screwdriver is widely used in dismantling complex equipment because of its replaceable head structure. However, the traditional multifunctional screwdriver has a magnetic head or a spring coil For clamping type positive installation, the cutter head is installed on the screwdriver handle through the installation hole in front of the handle, and the cutter head is easy to disengage due to excessive pulling force, so the cutter head is easy to fall into the screwdriver handle. Inside the device, difficult to remove. Contents of the invention [0003] The technical problem to be solved by the present invention is: to overcome the technical problem that the bit of the multifunctional screwdriver is easy to fall off in the prior art, and to provide a multifunctional screw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B23/00B25B15/02
Inventor 冯丽娜
Owner JIANGYIN TONGQI HARDWARE ELECTRICAL APPLIANCE FACTORY
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