Electric screwdriver

A technology of electric screwdriver and gear box, which is applied in the direction of screwdrivers, motor tools, wrench, etc., can solve the problems of inability to insert and turn screws, inconvenient use, etc., and achieve the effect of convenient use and wide application range

Inactive Publication Date: 2011-01-12
NINGBO HANPU TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this situation is often encountered in practical applications. The screws to be turned are located in a relatively narrow space or at a position relatively close to obstacles. For example, some screws or screws in some boxes are close to the inner wall of the box. Because the head of the commonly used electric screwdriver with the bit jack is coaxial

Method used

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  • Electric screwdriver
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Embodiment Construction

[0026] In order to better illustrate the technical solution of the present invention, the specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] As shown in the figure, an electric screwdriver includes a host machine 1 with a machine head 1.1, and is characterized in that it also includes an extension assembly 2 mainly composed of a gear box and a locking mechanism matched with the machine head 1.1.

[0028] Wherein, the locking mechanism refers to that the machine head 1.1 has a frustum-shaped peripheral surface with a small outside and a large inside, and the frustum-shaped peripheral surface of the machine head 1.1 is provided with positioning external teeth 1.1. .2; the locking mechanism includes a lock core 2.1, a lock sleeve 2.2 and a torsion spring 2.3, the lock core 2.1 is provided with positioning internal teeth 2.1.1 matching the positioning external teeth 1.1.1, and the lock s...

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Abstract

The invention discloses an electric screwdriver comprising a main engine (1) and an expansion assembly (2) in which a gear case is arranged, wherein the expansion assembly (2) is provided with a locking mechanism matched with the main engine (1). The invention also provides a locking mechanism with reliable locking and convenient disassembly. The gear case arranged in the expansion assembly (2) can be a parallel-shaft gear case or a bevel gear case, the reduction ratio of the gear case can be 1:1 or other reduction ratios, and the foldable angle of the bevel gear case is 90 degrees or other any angles. The electric screwdriver is additionally provided with the expansion assembly containing the gear case through the locking mechanism matched with the main engine, and the expansion assembly provided with the gear case can change the outputted moment and the direction of the main engine, thereby the electric screwdriver has the advantages of wider application range, simple disassembly of the expansion assembly and the main engine and convenient use.

Description

technical field [0001] The invention relates to the field of electric tools, in particular to an electric screwdriver. Background technique [0002] Electric screwdrivers generally include several parts such as a drive motor, a gearbox, and a machine head. As a convenient and efficient screwdriver tool, it has been more and more widely used in industry and various construction processes. However, this situation is often encountered in practical applications. The screws to be turned are located in a relatively narrow space or at a position relatively close to obstacles. For example, some screws or screws in some boxes are close to the inner wall of the box. Because the head of the commonly used electric screwdriver with the bit jack is coaxial with the body of the electric screwdriver, the bit of the electric screwdriver may not be inserted into the screwdriver due to the blockage of the head or the body of the electric screwdriver. In addition, if the screw to be turned req...

Claims

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Application Information

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IPC IPC(8): B25B21/00B25B23/00
Inventor 陈会甫
Owner NINGBO HANPU TOOLS
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