Spark testing screwdriver with replaceable tool bits

A screwdriver and cutter head technology, used in screwdrivers, indicating the existence of current/voltage, wrench, etc., can solve the problems of cutter head separation, difficulty in taking out, and cutter head easily falling into the interior of the equipment, etc. The effect of increased life and good elastic clamping force

Inactive Publication Date: 2018-01-05
JIANGYIN TONGQI HARDWARE ELECTRICAL APPLIANCE FACTORY
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  • 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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  • Spark testing screwdriver with replaceable tool bits

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Embodiment Construction

[0021] 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.

[0022] Such as figure 1 As shown, the present invention is an electric measuring screwdriver with a replaceable head, which includes a handle, a cylindrical fixed cavity is provided in the middle of the handle, and an annular fixed cavity is provided at one end of the fixed cavity. Supporting protrusions, a connecting sleeve, a supporting sleeve and a compression sleeve are sequentially arranged in the fixed cavity, wherein one end of the connecting sleeve is in contact with the supporting protrusion; the supporting sleeve is made of insulating material, and the compression sleeve It is fixedly connected with the inner wall of the fixed cavity by threads; a t...

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PUM

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Abstract

The invention relates to an electric-measuring screwdriver with a replaceable cutter head, which comprises a handle. A cylindrical fixed cavity is arranged in the middle of the handle, and an annular support protrusion is arranged at one end of the fixed cavity. A connection sleeve, a support sleeve and a compression sleeve are provided in sequence, wherein one end of the connection sleeve is in contact with the support protrusion; the compression sleeve is fixedly connected to the inner wall of the fixed cavity through threads; The flared end of port A is located at the end of the connecting sleeve, and a tapered port B is provided on the compression sleeve, and the flared end of the tapered port B is located at the end of the connecting sleeve; One end of the fixed sleeve is in contact with the connecting sleeve, a number of strip-shaped raised keys are arranged in an annular array on the inner wall of the fixed sleeve, and a number of strip-shaped grooves corresponding to the raised keys are arranged on the cutter head, and the strip-shaped grooves correspond to the cutter head. One side of the end is an open structure, and the cutter head is slidably connected with the connecting sleeve through a strip groove.

Description

technical field [0001] The invention relates to an electric measuring screwdriver with a replaceable cutter head, 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 multifunctional screwdriver bit is easy to fall off in the prior art, and to pro...

Claims

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Application Information

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IPC IPC(8): B25B15/02B25B23/00G01R19/145
Inventor 冯丽娜
Owner JIANGYIN TONGQI HARDWARE ELECTRICAL APPLIANCE FACTORY
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