CN2156994Y - Screwdriver - Google Patents

Abstract

The utility model belongs to the category of hardware tools. A screw can be previously fixed on a screwdriver and put at an operating point together. The utility model is especially suitable for the places with small operating space and inconvenience for operating. The utility model is composed of a clamping piece 2, a screwdriver rod 3, a bushing 4, a spring 5 and a screwdriver handle 6. The bushing 4 and the spring 5 are sheathed on the clamping piece 2 which is arranged on the screwdriver rod 3, and the screwdriver rod 3 is arranged on the screwdriver handle 6.

Description

Screwdriver

The utility model belongs to the hardware ﹠ tools class

When twisting screw, the time regular meeting to run into the space little, hand can't stretch into the situation that buttresses screw, not only bothers but also time-consuming, sometimes even the situation that exists screw to screw on.

The purpose of this utility model is to provide a kind of a kind of novel screwdriver of screws clamp also together being delivered to the operating point before screwing at screwdriver at the problems referred to above.

The utility model is made up of clamping element 2, spiral shell knife bar 3, sleeve pipe 4, spring 5, spiral shell handle of a knife 6, clamping element 2 heads are chuck, spring 5 is contained on the clamping element 2, the pawl of clamping element 2 head chucks is pinched together, sleeve pipe 4 is inserted on clamping element 2, and contact with spring 5, then clamping element 2 is enclosed within on the spiral shell knife bar 3, at last spiral shell knife bar 3 is inserted on the spiral shell handle of a knife 6.

Advantage of the present utility model is, can together put on the operating point with the screw predetermined fixed on screwdriver, has solved crawl space, and hand can't stretch into the problem of helping screw.

Fig. 1 is the utility model structure chart.

Fig. 2 is the utility model A-A cross section view.

Embodiment:

Retaining tongue 8 is arranged on clamping element 2, spring 5 and sleeve pipe 4 are contained on the clamping element 2 having groove 7 on the spiral shell knife bar 3, then, together be contained on the spiral shell knife bar 3, retaining tongue 8 slides in groove 7, spiral shell knife bar 3 is contained on the spiral shell handle of a knife 6, using method: screw 1 is placed on the edge of a knife of spiral shell knife bar 3, with clamping element 2 and sleeve pipe 4 pinching in opposite directions, compression spring 5, then, together promote forward, when retaining tongue 8 pushes up chute 7 tops, trip spring 5, under the active force effect of spring 5, the collet segment of clamping element 2 is clamped screw 1, and last is with delivering on the operating point.After screw is screwed on the operating point slightly, with clamping element 2 and sleeve pipe 4 pinching in opposite directions, compression spring 5, and together pull back, get out of the way screw 1, last, continuing to turn spiral shell handle of a knife 6 can be screwed in screw 1 on the operating point.

Claims (2)

1, a kind of novel screwdriver comprises spiral shell knife bar 3, spiral shell handle of a knife 6, it is characterized in that, also comprises clamping element 2, sleeve pipe 4, spring 5, and spring 5 and sleeve pipe 4 are enclosed within on the clamping element 2, and together is contained on the spiral shell knife bar 3, and spiral shell knife bar 3 is contained on the spiral shell handle of a knife 6.

2, according to the described a kind of novel screwdriver of claim 1, it is characterized in that, fluted 7 on the spiral shell knife bar 3, retaining tongue 8 is arranged on the clamping element 2, retaining tongue 8 can slide in groove 7.

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