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hand driven screwdriver

A drive type, screwdriver technology, applied to screwdrivers, manufacturing tools, etc., can solve problems such as inconvenient use

Inactive Publication Date: 2016-05-18
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned hand-held screwdriver only needs to be manually powered, which is more suitable for home use. However, because its rack can only drive the knife bar to rotate in one direction, if you want to tighten the screw and loosen the screw, then It is necessary to set the tool holder in a split form, which is realized by changing the head of the tool holder (switching at both ends of the handle), but there is still the problem of inconvenient use

Method used

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Examples

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Embodiment Construction

[0018] Examples of handheld drive screwdrivers, such as Figure 1-3 As shown, the hand driven screwdriver includes a handle 11 and a handle 12 .

[0019] The inner hollow structure of the knife handle 11, the knife bar 12 is rotatably assembled on the knife handle 11 and can expand and contract in the knife handle 11 in the axial direction, and one end of the knife handle 11 is equipped with a one-way transmission wheel. In the embodiment What one-way transmission wheel adopts is flywheel and has two, and two one-way transmission wheels are arranged at intervals along the axial direction of cutter bar 12 and are divided into forward transmission wheel 13 and reverse transmission wheel 14 that transmission direction is opposite.

[0020] Gear bar 15 is equipped with radially on the handle of a knife 11, and rack 15 is corresponding with one-way drive wheel and cooperates with handle of a knife 11 in the axial direction of knife bar 12 anti-movement, wherein each one-way drive w...

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Abstract

The invention relates to the field of mechanical disassembling tools, in particular to a grip drive type screwdriver. The grip drive type screwdriver comprises a holder and a toolbar. The toolbar is rotationally assembled on the holder, racks are radially assembled on the holder, unidirectional transmission wheels which correspond to the racks are assembled on the toolbar and include a forward transmission wheel and a reverse transmission wheel, the forward transmission wheel and the reverse transmission wheel are axially arranged along the toolbar, a transmission direction of the forward transmission wheel is opposite to a transmission direction of the reverse transmission wheel, and when one of the forward transmission wheel and the reverse transmission wheel is meshed with the corresponding rack, the other transmission wheel and the rack corresponding to the other transmission wheel are axially staggered from each other along the toolbar. The grip drive type screwdriver has the advantages that a user only needs to grip the holder by a hand when using the screwdriver, the toolbar axially relatively moves, and the turning direction of the toolbar can be changed, so that a head of the toolbar does not need to be changed when screws are screwed down of screwed off, and the grip drive type screwdriver is quite convenient.

Description

technical field [0001] The invention relates to the field of mechanical dismounting tools, in particular to a hand-held driving screwdriver. Background technique [0002] Screws are one of the most widely used fasteners today. Whether it is on large equipment, or on some small appliances such as TVs, refrigerators, washing machines, or on some electrical components such as circuit boards and furniture, screws can be seen everywhere. [0003] Screwdrivers are tools suitable for tightening and loosening screws. With the continuous diversification of screws, screwdrivers are also in development. The original screwdriver consisted of two parts, the knife shaft and the knife handle. The arc between the knife shaft and the knife handle was fixed. When in use, the operator held the knife handle and rotated the knife handle forward and reverse around the axis of the knife bar to achieve Corresponding action on the screw. Obviously, this kind of screwdriver has the problem of low ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B15/00B25B15/02
CPCB25B15/06
Inventor 毛鹏军丁月华张伏邱兆美王俊张松泓
Owner HENAN UNIV OF SCI & TECH
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