CN205325557U

CN205325557U - One -way curved bar screwdriver

Info

Publication number: CN205325557U
Application number: CN201620007554.9U
Authority: CN
Inventors: 陈烁
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-05
Filing date: 2016-01-05
Publication date: 2016-06-22
Anticipated expiration: 2026-01-05

Abstract

The utility model discloses an one -way curved bar screwdriver, it belongs to five metals apparatus field, its beneficial effect be can be crooked transmission torsion. The utility model provides a realize like this that it includes tool bit, main handle, connected by a metal flexible axle between tool bit and the main handle, the metal flexible axle is worn the cover and is right angle form bending for in the tubulose curved bar of three -section one, the lower extreme of tool bit is provided with the boss, and the device has a bearing between the up end of curved bar and boss, still has subsidiary handle at the middle section position of curved bar device simultaneously. This design is used in being applicable to more constrictive operating space.

Description

Unidirectional curved bar screwdriver

Technical field

This utility model belongs to hardware & tools field, specifically refers to a kind of unidirectional curved bar screwdriver。

Background technology

Screwdriver is from a kind of instrument apparatus not in people's daily life and operation, screw or bolt is unloaded on being mainly used to, it is generally made up of the knife bar of handle and direct rod shape, the outer end of knife bar is that yi word pattern or criss-cross cutter head are to adapt to the head of a nail of different edge of a knife shape, knife bar and handle are on same axis, also require that this axis aligns the axis of screw and reverses screw driver handle while applying a pressure to screw to ensure reliably docking of driver bit and the screw head of a nail in use, the bigger this screwdriver in space of operation instrument use easily if can align to unload on screw, if and the space of the instrument of operation is restricted such as narrow space and is difficult to hold the screwdriver of whole, instrument now uses just highly difficult, though can be inadequate cutter head is directed at the head of a nail, but because the restriction of narrow space cannot accomplish that the axis of screwdriver and the axis of nail rod are on same axis, thus cannot transmit turning moment reliably, can not normal operating, in order to the life of convenient people in such cases and production are accomplished by a kind of screwdriver that the straight-bar of screwdriver can be transformed to the curved bar that can bend to adapt to narrow working place。

Summary of the invention

The purpose of this utility model is to provide the new unidirectional curved bar screwdriver of technical scheme of a kind of screwdriver, and it can meet above-mentioned needs。

The technical solution of the utility model is achieved in that it includes cutter head, main handle, is connected by metal flexible axle between described cutter head and main handle, and metal flexible axle is set in the tubulose curved bar that rectangular sigmoid is three sections；The lower end of described cutter head is provided with boss, and between the upper surface and boss of curved bar, device has a bearing, also has auxiliary handle at position, the stage casing device of curved bar simultaneously。

The beneficial effects of the utility model are: the transmission torsion that can bend。

Accompanying drawing illustrates:

Fig. 1 is the front view (containing cutter head position partly cut open zoomed-in view) of the design screwdriver。

In figure, 1 is cutter head, and 2 is bearing, and 3 is metal flexible axle, and 4 is curved bar, and 5 is auxiliary handle, and 6 is main handle, and 7 is boss。

Detailed description of the invention:

The design is illustrated below in conjunction with accompanying drawing。

As shown in Figure 1, the screwdriver of the design includes cutter head 1, main handle 6, coupled together by a metal flexible axle 3 between cutter head and main handle, metal flexible axle is set in the tubulose curved bar 4 that rectangular sigmoid is three sections, metal flexible axle 3 be a kind of by the steel wire form concentric spirals of many certain rugosity close around Long Circle bar, it can be made the folding of larger angle in the axial direction and bend break-in and can transmit bigger torsional moment diametrically, and the rotary torsion of transmission one end that namely it can bend is to the other end；The lower end of cutter head 1 is provided with boss 7, and between the upper surface of curved bar 4 and boss 7, device has a pressure bearing 2, also has auxiliary handle 5 at position, the stage casing device of curved bar 4 simultaneously。Time specifically used, both hands hold main handle 6, auxiliary handle 5 respectively, cutter head is aligned the edge of a knife at screw head of a nail position and applies a thrust in case anti-avulsion position, rotate main handle, torsional moment will be delivered to the cutter head of the other end by metal flexible axle, bearing also can this transmission of power-assisted without blocking, thus completing the operation of the screw up and down that common straight-bar screwdriver can not complete in the working place of relatively narrower。

Claims

1. a unidirectional curved bar screwdriver, it includes cutter head, main handle, it is characterized in that being connected by metal flexible axle between described cutter head and main handle, and metal flexible axle is set in the tubulose curved bar that rectangular sigmoid is three sections；The lower end of described cutter head is provided with boss, and between the upper surface and boss of curved bar, device has a bearing, also has auxiliary handle at position, the stage casing device of curved bar simultaneously。