CN203141386U - Screwdriver - Google Patents

Abstract

The utility model discloses a screwdriver which comprises a driver rod and a handle. The handle is provided with a center hole, a driver rod sleeve is embedded in the center hole, ridges arranged evenly at intervals are arranged on the surface of the driver rod sleeve, one end of the driver rod sleeve is contracted towards an inner center to form a limit ring, a small hole is arranged at the other end of the driver rod sleeve, an elastic bead is fixed on an inserting hole edge through a fastening ring, one end of the driver rod is provided with a slot type screwdriver head, the other end of the driver rod is provided with a cross screwdriver head, and the driver rod is clamped in an inserting hole through the limit ring. Compared with the prior art, the screwdriver has two functions of a slot type screwdriver and a cross screwdriver, direct contact between the driver heads and the handle is avoided, the service life is prolonged, and the combining firmness of the driver rod sleeve and the handle is improved through the ridges on the driver rod sleeve. The elastic bead fixed through the fastening ring is arranged on the driver rod sleeve, the firmness of combination of the driver rod and the handle is improved due to a butting effect of the elastic bead, switching of the driver rod is flexible, and use is convenient.

Description

A kind of screwdriver

Technical field

The utility model relates to a kind of screwdriver, belongs to the hand-operated tools field.

Background technology

In existing screwdriver, all be to be constituted by screwdriver rod and screw handle, one end of screwdriver rod is made straight screwdriver head or Philip's head screw cutter head, the other end is fixed in the screw handle, and according to different situations, the operator need buy two kinds of screwdrivers, cost is higher, and in use, need change Phillips screwdriver and straight screwdriver back and forth, very inconvenient.The patent No. is that the Chinese utility model patent of ZL97228326.9 discloses a kind of screwdriver; be straight screwdriver by knife bar being made an end; the other end is Phillips screwdriver; the handle place is movable fixing with knife bar by a threaded knob; realized the function of two kinds of screwdrivers has been incorporated into together; yet; this screwdriver structurally exists defective; threaded knob need rotate back and forth in use; very inconvenient, knob also damages easily, and; after knife bar and handle combination; in handle of a knife inside, cutter head directly is against in the centre bore of handle, cutter head is not played protection; cutter head damages when rotating energetically easily, influences the service life of screwdriver.

The utility model content

The purpose of this utility model is to provide a kind of screwdriver at above-mentioned the deficiencies in the prior art, can strengthen the function of use of screwdriver, can protect driver bit simultaneously, prevents from damaging, and increases the service life.

For achieving the above object, the technical solution of the utility model is: a kind of screwdriver, comprise knife bar and handle, described handle offers centre bore, be inlaid with the knife bar cover in the centre bore, described knife bar cover surface is provided with at interval fin uniformly, offer orthohexagonal jack in the knife bar cover, one end of knife bar cover shrinks towards heart and forms spacing collar, offer aperture on the other end, be placed with hoodle in the aperture, hoodle is wrapped with tight loop, and hoodle is fixed on the jack edge by tight loop, described knife bar one end is the straight screwdriver head, the other end is the Philip's head screw cutter head, the shape of knife bar cross section, size is complementary with jack, and knife bar is connected in the jack by spacing collar.

The beneficial effects of the utility model are: compared with prior art, have two kinds of functions of straight screwdriver and Phillips screwdriver, avoided cutter head directly to contact with handle, prolonged service life, the fin that knife bar puts improved knife bar cover and handle in conjunction with fastness, knife bar puts and is provided with by the fixing hoodle of tight loop, the conflict effect by hoodle not only strengthens the fastness that knife bar is combined with handle, and make that the conversion of knife bar is more flexible, use convenient.

Description of drawings

Fig. 1 is front view of the present utility model;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the stereogram of knife bar cover;

Fig. 4 is the front view of knife bar;

Fig. 5 is the B-B cutaway view of Fig. 4.

Among the figure: 1, knife bar, 2, handle, 3, centre bore, 4, the knife bar cover, 5, fin, 6, jack, 7, spacing collar, 8, aperture, 9, hoodle, 10, tight loop, 11, the straight screwdriver head, 12, the Philip's head screw cutter head.

The specific embodiment

Below in conjunction with accompanying drawing, and in conjunction with the embodiments, the utility model is described further.

Embodiment:

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the utility model comprises knife bar 1 and handle 2, described handle 2 offers centre bore 3, be inlaid with knife bar cover 4 in the centre bore 3, described knife bar overlaps 4 surfaces and is provided with at interval fin 5 uniformly, offer orthohexagonal jack 6 in the knife bar cover 4, one end of knife bar cover 4 shrinks towards heart and forms spacing collar 7, offer aperture 8 on the other end, be placed with hoodle 9 in the aperture 8, hoodle 9 is wrapped with tight loop 10, hoodle 9 is fixed on jack 6 edges by tight loop 10, and described knife bar 1 one ends are straight screwdriver head 11, and the other end is Philip's head screw cutter head 12, the shape of knife bar 1 cross section, size is complementary with jack 6, and knife bar 1 is connected in the jack 6 by spacing collar 7.

Operation principle of the present utility model is: an end of knife bar 1 is straight screwdriver head 11, the other end is Philip's head screw cutter head 12, the feasible function that the utlity model has two kinds of screwdrivers, knife bar overlaps 4 surfaces and is provided with at interval fin 5 uniformly, fin 5 can prevent relatively rotating of handle 2 and knife bar cover 4, improve handle 2 and knife bar cover 4 in conjunction with fastness, in like manner, the regular hexagon design of jack 6 and knife bar 1, can improve jack 6 and knife bar 1 in conjunction with fastness; The end of knife bar cover 4 shrinks towards heart and forms spacing collar 7, and knife bar 1 is connected on the jack 6 by spacing collar 7, can avoid cutter head directly to contact with handle 2, prevents the damage of cutter head, prolongation product service life; Tight loop 10 is fixed on hoodle 9 on jack 6 edges, when knife bar 1 is inserted in the knife bar cover 4, knife bar 1 extruding hoodle 9, this moment is because the effect that braces of tight loop 10, make knife bar 1 tightr with 4 combinations of knife bar cover, promote integrally-built robustness, make knife bar 1 insert, extract and be more prone to, simply the convenient screwdriver function conversion simultaneously.

Claims (1)

1. screwdriver, comprise knife bar (1) and handle (2), it is characterized in that: described handle (2) offers centre bore (3), be inlaid with knife bar cover (4) in the centre bore (3), described knife bar cover (4) surface is provided with at interval fin (5) uniformly, offer orthohexagonal jack (6) in the knife bar cover (4), one end of knife bar cover (4) shrinks towards heart and forms spacing collar (7), offer aperture (8) on the other end, be placed with hoodle (9) in the aperture (8), hoodle (9) is wrapped with tight loop (10), hoodle (9) is fixed on jack (6) edge by tight loop (10), described knife bar (1) one end is straight screwdriver head (11), the other end is Philip's head screw cutter head (12), the shape of knife bar (1) cross section, size is complementary with jack (6), and knife bar (1) is connected in the jack (6) by spacing collar (7).

Images