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Drilling tool with dust collector

A drilling tool and dust collection device technology, which is applied in the field of drilling tools, can solve the problems of poor portability and rising costs, and achieve the effect of attractiveness, high efficiency, and prevention of external leakage

Inactive Publication Date: 2009-06-10
KOKI HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This device also requires external devices such as a compressor, which is poor in portability
In addition, due to the special structure in which the fluid passage is formed in the axial center of the drill, the cost will also increase

Method used

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  • Drilling tool with dust collector
  • Drilling tool with dust collector
  • Drilling tool with dust collector

Examples

Experimental program
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Effect test

Embodiment Construction

[0039] Below, refer to Figure 1 ~ Figure 2 , the drilling tool according to one embodiment of the present invention will be described. figure 1 is a partial cross-sectional view of the drilling tool, figure 2 is its appearance.

[0040] The hammer drill main body 1 has four modes as operation modes: rotation / impact mode, rotation mode, impact mode, and neutral (neutral) mode, and has an impact mechanism part, a rotation transmission mechanism part and Switch agency department. The rear end of the housing 2 ( figure 1 The right end of the handle 3) is provided with a handle 3, a switch 4 is provided on the handle 3, and an electric wire 5 for power supply is connected at the same time. A dial-shaped switch 6 for switching operation modes is provided on the side of the housing 2 . Utilize switch 6 can switch to above-mentioned four action modes. A tool holder 2a is provided at the front end of the housing, and a drill bit 26 is installed on the tool holder 2a. Homework ...

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Abstract

The invention provides a drilling tool having a miniaturized dust collection device, which improves the working efficiency while improving the dust collecting efficiency. The drilling tool uses the rotary force of an electric motor to rotate the drill bit. The dust collection device is installed near the front end of the drill bit. The dust collection device collects the dust caused by drilled material of drilling. The dust collection device is provided with: a penetrating portion configured to penetrate the drill bit; a dust collection nozzle that absorbs mill dust produced near the front end of the drill bit; and an ejection opening that ejects air. Absorbed air enters, passes through a dust collection filter and reaches the path of a fan connected with the electric motor, and a currentof air is formed by using the rotary force of the fan. The current of air is the current of air for absorption from the dust collection nozzle and the current of air for ejection from the ejection opening. The amount of the absorbed air is larger than that of the air ejected from the ejection opening.

Description

technical field [0001] The invention relates to a drilling tool driven by an electric motor or an engine, which is used for opening drilling holes, in particular to a drilling tool equipped with a dust collecting device, which can efficiently clean the dust generated during drilling. Dust collection. Background technique [0002] Drilling tools are used to create drilled holes in stone such as concrete or brick. Drilling tools are used to drill holes in the material to be drilled by driving a drill bit. There are common rotary drills, impact drills that rotate and impact the drill bit, and vibration drills. Since dust is generated when drilling with a drilling tool, operators sometimes wear a dust mask or protective glasses. In recent years, in order to remove dust generated during work, drilling tools equipped with dust collectors for collecting dust have been widely used. [0003] For example, in Japanese Patent Application Laid-Open No. 2004-276194, the form of coverin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B6/04E21B21/00B28D1/14B23B47/00B25D17/14
Inventor 西河智雅小堀贤志山崎真护
Owner KOKI HLDG CO LTD
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