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hand drill

A technology of hand-held electric drills and electric drills, which can be used in portable drilling machines, drilling/drilling equipment, metal processing equipment, etc., and can solve the problems of drilling, danger, etc.

Active Publication Date: 2017-12-08
NINGBO XINSHENG TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the operator often needs to change the drill bit when using the electric drill. Because of the convenience, the operator directly replaces the drill bit when the electric drill is not powered off. very dangerous

Method used

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Such as Figure 1 to Figure 2 As shown, a hand-held electric drill includes an electric drill body 1 and a drill chuck 2 for installing a drill bit. It is characterized in that: the drill chuck 2 is provided with a circle of annular grooves 22, and the annular groove 22 is provided with a slide bar 3 , the end of one end of the slide bar 3 extends into the key hole 21 of the drill chuck 2, the part of the slide bar 3 extending into the key hole 21 is an inclined plane, and a ring-shaped retaining wall is arranged on the outside of the drill chuck 2 4. The annular retaining wall 4 is fixed on the electric drill body 1, an opening 41 is provided on the annular retaining wall 4, and the other end of the sliding rod 3 extends into the electric drill body 1 and is between the inner wall of the electric drill body 1 A first return spring 13 is provide...

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PUM

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Abstract

The invention relates to an electric hand drill comprising an electric drill body and a drill chuck used for mounting a drill bit, wherein a circle of annular groove is formed in the drill chuck, a slide bar is arranged in the annular groove, the end part of one end of the slide bar stretches into a key hole of the drill chuck, the other end of the slide bar stretches into the electric drill body, and a first reset spring is arranged between the other end of the slide bar and the inner wall of the electric drill body; a first toothed plate, a gear and a second toothed plate are arranged below the slide bar; a first magnet is arranged on the second toothed plate, a second magnet is arranged below the second toothed plate, the magnetic poles of opposite sides of the first magnet and the second magnet are the same, a magnetic slide way is arranged below the second magnet, a gasket is arranged in the magnetic slide way in a sliding way, a second reset spring is arranged below the gasket, an electric drill switch is arranged at one side of the gasket, an electric drill button is arranged at the other side of the gasket, two lugs are arranged on the gasket, and two grooves matched with the lugs are formed in the electric drill button. After the structure is adopted, no danger can occur even if an operator changes the drill bit without turning off power of the electric drill.

Description

technical field [0001] The invention belongs to the field of electric tools, and in particular relates to an electric drill. Background technique [0002] Electric drill is the most commonly used power tool by people. It has the advantages of convenience, low price, and portability, and is highly praised by workers in the hardware and decoration industries. But the operator often needs to change the drill bit when using the electric drill. Because of the convenience, the operator directly replaces the drill bit when the electric drill is not powered off. very dangerous. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the invention provides an electric drill. [0004] The present invention is realized through the following technical solutions. A hand-held electric drill includes an electric drill body and a drill chuck for installing a drill bit. An annular groove is arranged in the drill chuck, and a sliding rod is arranged in the annular...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B45/02
CPCB23B45/003B23B45/006B23B45/008B23B45/02
Inventor 史波
Owner NINGBO XINSHENG TOOLS
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