CN2035299U

CN2035299U - Screwdriver with illuminating device

Info

Publication number: CN2035299U
Application number: CN 88207526
Authority: CN
Inventors: 章根德
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-06-28
Filing date: 1988-06-28
Publication date: 1989-04-05

Abstract

The utility model relates to a light condensing screwdriver, which is used in dark surrounds. A circle of optical fiber is arranged on the periphery of a screwdriver bar of the screwdriver along the axial direction, and the upper end of an optical fiber bundle is communicated with a small light condensing electric torch The screwdriver has the advantages of simple structure, convenient manufacture and portability and can successfully screw on and off screws in the dark.

Description

Screwdriver with illuminating device

The utility model relates to a kind of under the condition of illumination extreme difference, particularly the screwdriver of working in the dark surrounds.

The screwdriver of loading and unloading screw generally is made up of knife bar and handle.In the past, people note for the improvement of handle very much, for example DRP DE45111 has proposed mounting teeth wheel apparatus on handle and the speed of accelerating to load and unload screw, but seldom for the improvement of knife bar, so that up to the present, all screwdrivers all must be worked under bright illumination, and just can't load and unload screw in dark surrounds.

The purpose of this utility model is that a kind of novel screwdriver---optically focused screwdriver will be provided, and it can produce bright hot spot so that can successfully load and unload screw in the environment in dark around driver bit.

The purpose of this utility model is achieved in that fitly arranges a circle optical fiber around the screwdriver knife bar vertically, and a fibre-optic end is tightened, and the other end is divided into the number bundle and passes the double-screw bolt that links to each other with knife bar and twist into a branch ofly again, and communicates with the little torch of optically focused.When connecting power supply, light passes near the driver bit by fibre-optic bundle and by on the screw that loads and unloads, produces enough illuminance for loading and unloading screw.

The utility model encloses optical fiber because only need to add one around original screwdriver knife bar, and links to each other with the little torch of optically focused, so structure is simple especially, simultaneously, light source and screwdriver fuse, and are easy to carry.In dark surrounds, need not other light sources and just can successfully load and unload screw.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is the profile according to the homalocephalus optically focused screwdriver that the utility model proposes.

Describe details and working condition in detail below in conjunction with Fig. 1 according to the concrete device that the utility model proposes.

This device comprises screwdriver rod (1), proper alignment one circle optical fiber (2) vertically around the knife bar, and tighten the optical fiber lower end, and the upper end is divided into four bundles and passes the double-screw bolt (3) that links to each other with knife bar and twist into a branch of again.Its top communicates with the little torch of optically focused (4) of 22 millimeters of diameters.

After connecting as the little torch of light source, light is gathered in by fibre-optic bundle near the driver bit, produces bright hot spot, provides enough illuminance for loading and unloading screw smoothly.

Fig. 2 is the profile according to the crosshead screwdriver with illuminating that the utility model proposes.

This device comprises screwdriver rod (5), proper alignment one circle optical fiber (2) vertically around the knife bar, and tighten the optical fiber lower end, and the upper end is divided into four bundles and passes the double-screw bolt (3) that links to each other with knife bar and twist into a branch of again. Its top communicates with the little torch of optically focused (4) of 22 millimeters of diameters.

After connecting as the little torch of light source, light is gathered in by fibre-optic bundle near the driver bit, produces bright hot spot, provides enough illuminance for loading and unloading smoothly screw.

Claims

1, in dark surrounds, is engaged in the optically focused screwdriver of loading and unloading screw, this device has a knife bar and handle, it is characterized in that arranging a circle optical fiber (2) vertically around the knife bar, tighten the optical fiber lower end, it is a branch of that the upper end is divided several bundles to pass to twist into behind the double-screw bolt (3) that links to each other with knife bar again, and communicate with the little torch of an optically focused (4).

2, device according to claim 1 is characterized in that optical fiber is parallel to axially-aligned, passes double-screw bolt (3) and communicates with the little torch of optically focused (4), in case connect power supply, the light of upper end just is delivered to the lower end along fibre-optic bundle.

3, device according to claim 1 is characterized in that fibre-optic bundle (2) is made up of many optical fibers, and one of optical fiber suffers a ground proper alignment and gluing on knife bar.

4, according to the described device of claim 1,2 and 3, the knife bar that it is characterized in that screwdriver can be the knife bar (1) of homalocephalus, or the knife bar of crosshead (5).