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Dual-speed multifunctional electric hammer

A multi-functional, two-speed technology, applied in the direction of portable motorized devices, impact tools, light impact tools, etc., can solve the problems of low efficiency and achieve the effect of compact structure, simple operation and convenient function conversion

Active Publication Date: 2008-04-09
CHANGZHOU TONGYANG ELECTRICAL MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the efficiency of the existing electric hammer is not high when drilling holes smaller than φ10 on steel and wood

Method used

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  • Dual-speed multifunctional electric hammer
  • Dual-speed multifunctional electric hammer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0040] Embodiment The double-speed multifunctional electric hammer shown in the drawings includes a front part and a rear part (not shown); the front part is a transmission control part, and the rear part is a power part.

[0041] The front-end components include a front-end housing 15, a base 16 connected to the front-end housing 15, a drive shaft assembly 17, an impact shaft assembly 6, a low-speed bull gear 12, a high-speed bull gear 9, a bull gear return spring 11, a low-speed slide plate 34, and a high-speed gear. Slide plate 35, slide plate spring 41, sliding pinion assembly 26, inner knob 32, outer knob 33, anti-rotation plate 44, wherein:

[0042]The transmission shaft assembly 17 is mainly composed of a transmission shaft 24, a gear 18 sleeved on the transmission shaft 24, a swing rod bearing 19 sleeved on the transmission shaft 24, and a gear that can...

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Abstract

The invention belongs to the electric tool technology field, and relates to a double-speed multi-purpose electric hammer. The invention comprises front end and rear end parts; the front end part comprises a front end casing body, a bottom seat, a transmission shaft component, an impact axle component, a sliding pinion gear component, a low-speed bull gear, a high-speed bull gear, a bull gear return spring, inner and outer knobs, a low-speed sliding plate, a high-speed sliding plate, a sliding plate spring, and a rotation stopping plate. The invention adopts one knob to realize the conversion of five function of the electric hammer, the single hammer, the neutral gear, the hammer drill, the low-speed drill and the high-speed drill, and the function is reliable, and the installation and the use are convenient. The invention solves the problem that the efficiency is not high when the existing electric hammer is used for drilling small holes on steel or timber.

Description

technical field [0001] The invention belongs to the technical field of electric tools in the machinery industry, and in particular relates to a two-speed multifunctional electric hammer which uses a single knob to realize five functions of single hammer, neutral gear, hammer drill, low-speed drill and high-speed drill. Background technique [0002] Existing electric hammers have at most four functions, i.e. single hammer, neutral gear, hammer drill, and low-speed drill. The single hammer function is generally used to chisel wire grooves on cement and brick walls and shovel ceramic tiles; the neutral position is used to adjust the angle between the cutting edge of the flat chisel and the working surface, so that the operator can hold the electric hammer comfortably when working; The hammer drill function is generally used to drill holes in cement and brick walls; the low-speed drill function is generally used to drill holes larger than φ10 in steel and wood. However, the low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25D16/00B25F3/00
CPCB25D2211/061B25D2250/275B25D16/006B25D2216/0076B25D2216/0023B25D2216/0038B25D2250/045B25D2216/0015
Inventor 陈松年
Owner CHANGZHOU TONGYANG ELECTRICAL MFG
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