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power tool

A technology for power tools and working heads, applied in the field of power tools, can solve problems such as unfavorable operation comfort and simplicity, unfavorable size miniaturization of power tools, and inability to reflect the development trend of tool intelligence, and achieve the effect of convenient use.

Active Publication Date: 2016-06-22
POSITEC POWER TOOLS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the operation method of this type of transmission has the following disadvantages: 1. Due to the additional setting mode switching button and the corresponding structure inside it, it is not conducive to the miniaturization of the size of the entire electric tool
2. Additional operations are required for the user to perform mode conversion, which is not conducive to improving the comfort and simplicity of operation
3. Users need to choose independently according to the situation, which cannot reflect the development trend of tool intelligence

Method used

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Embodiment Construction

[0122] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0123] in the attached figure 1 The hand-held power tool 1 shown in is typically used along the figure 1 The illustrated working axis 10 performs percussion drilling, or hammer drilling, and rotary drilling, or screwing. Such handheld power tools 10 may include electric hammers, electric picks, and the like. In the present invention, an electric hammer is used as an example. The rotary hammer includes a housing 2 surrounding the periphery. The casing 2 is preferably spliced ​​from two half-shells. Such as figure 2 As shown, a motor 21 is provided inside the casing 2 . The motor 21 has a motor shaft 22 for generating a rotational output. In this embodiment, the motor 21 can be a DC motor or an AC motor with electronic control or manual control, through which the rotational speed of the motor can be adjusted and preferably, the rota...

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PUM

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Abstract

The invention relates to an electric hammer. The electric hammer can be provided with a working head and the working head is provided with a hexagonal profile and a circumferential groove. The electric hammer comprises a shell, a motor which is arranged in the shell, a transmission mechanism which is arranged in the shell, a chuck which is driven through power which is produced by the motor and the transmission mechanism which rotates around a working axis, the chuck comprises a sleeve which is used for holding the working head, the chuck additionally comprises an axial positioning piece and a clamping piece, the axial positioning piece is matched with the circumferential groove and the clamping piece is matched with the hexagonal profile of the working head and can move radially. The electric hammer provided by the invention has the beneficial effect that the working head can be firmly clamped by using the axial positioning piece and the clamping piece.

Description

technical field [0001] The present invention relates to a power tool. Background technique [0002] A number of hand-held power tools are known, especially for use in the home improvement, construction and industrial markets. These hand-held power tools are either designed solely for drilling, screwing or hammering work, or are designed for a combination of both, e.g. for drilling and screwing or for rotary and percussion type drilling. Such electric tools such as hammer drills are electric hammers, electric picks, etc. These electric tools all have a collet located at the front end of the electric tool for accommodating and clamping and locking the working head. Although the known working heads are optimally suited for the respective intended use, most are not at all or only poorly suited for other purposes. An example is the case where the working head is a twist drill, which is optimally suited for screwing and drilling, but is not suitable for use in stone and concre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25F3/00B25F5/00
Inventor 胡广朱伯元
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD
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