Hand electric tool machine

A power tool, hand-held technology, applied in the field of hand-held power tools, can solve the problems of hand grinding and insecurity, and achieve the effect of safe replacement, convenient and quick removal and installation

Inactive Publication Date: 2008-10-15
叶世祯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a hand-held power tool, which can electrically clamp/release the to

Method used

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  • Hand electric tool machine
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Examples

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Example Embodiment

[0025] As shown in Figures 1-13, the hand-held power tool (such as a hand drill) of the present invention includes a housing body 1, a driving device 10, a chuck device 30, a hollow power shaft 21 and a tool head storage device 20, wherein the driving device 10 is installed The chuck device 30 is installed in the front end of the housing body 1 and used to clamp the tool head 25; the hollow power shaft 21 is connected to the driving device 10, and the driving device 10 The hollow power shaft 21 is driven to rotate, and the hollow power shaft 21 has a hollow cavity 211 penetrating from the front end to the back end. The front end of the hollow power shaft 21 is fixed in the chuck device 30; the tool head storage device 20 is rotatably supported on the housing body 1, It also has a plurality of tool bit storage slots 233. The rear end of the hollow power shaft 21 corresponds to one of the tool bit storage slots 233, and the rotation of the tool bit storage device 20 can make each to...

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PUM

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Abstract

A handheld power tool is provided. The power tool comprises a casing body, a driving device, a clamping device, a hollow power shaft and a tool head storing device, wherein the driving device is arranged in the casing body for producing power; the clamping device is arranged on the front end of the casing body for clamping the tool head; the hollow power shaft is connected with the driving device and is driven to rotate by the driving device, and the hollow shaft is provided with a hollow cavity penetrating from the front end to the rear end and the front end is fixed in the clamping device; the tool head storing device is rotationally supported on the casing body, and comprises a plurality of tool head storing grooves; the rear end of the hollow power shaft correspondingly communicates with one of the tool head storing grooves. By adopting the inventive structure, the handheld power tool is capable of not only carrying tool heads of various specifications, but also facilitating the tool head replacement.

Description

technical field [0001] The present invention relates to a power tool, in particular to a hand-held power tool such as a hand electric drill. Background technique [0002] Hand-held power tools (such as electric hand drills), as the most commonly used power tools, have been using a drill key (small straight-toothed bevel gear) for many years to manually clamp and loosen the structure of the tool head. Although the structure is simple, it has the disadvantages of time-consuming and labor-intensive clamping and loosening of the drill bit, and unreliable clamping. [0003] In order to alleviate the above problems, a hand-held power tool that utilizes the forward / reverse rotation of a hand-held power tool (such as a hand electric drill) and manually grasps the chuck jacket to clamp and loosen the tool head has recently appeared, such as Patent No. The structure of the hand electric drill chuck provided for US5,913,524 and US6,007,071. Although this hand-held power tool effectiv...

Claims

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Application Information

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IPC IPC(8): B25F5/00F16D27/10B23B31/165
Inventor 叶世祯
Owner 叶世祯
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