CN201736165U - Screwdriver with clamping sleeve - Google Patents

Abstract

The utility model discloses a screwdriver with a clamping sleeve. The screwdriver comprises a screwdriver head, a screwdriver bar and a handle, wherein a screw clamping sleeve is sheathed on the screwdriver bar; the rear end of the screw clamping sleeve is provided with a mounting hole matched with the screwdriver bar, and the front end thereof is provided with an inner cavity with the diameter being more than the screwdriver head; and the length of the inner cavity is more than that of the screwdriver head. When the screwdriver is used, the screw clamping sleeve is pushed to the top end of the screwdriver, and a screw can not fall off when the screw is assembled or disassembled, so as to improve the working efficiency.

Description

Strap clamp cover screwdriver

Technical field

The utility model relates to a kind of screwdriver, and a kind of specifically have come off a strap clamp cover screwdriver of function of anti-screw.

Background technology

Conventional screwdriver structure is simple, easy to maintenance, use is extensive, but at screw-in, when screwing out screw, the cutter head position is restive, easily from the screw-socket landing; Particularly at the beginning of DRIVE SCREWS or screw when being about to screw out screw hole, careless slightly, very easily cause screw to come off, under the big or charged environment of workload, use very inconvenience, inefficiency and increase work danger.

Summary of the invention

The purpose of this utility model is at above-mentioned the deficiencies in the prior art, and a kind of structure improved strap clamp cover screwdriver is provided, and can prevent that screw from coming off, and increases work efficiency, and guarantees the security of operation.

The utility model is achieved in that it comprises cutter head, knife bar and handle, is set with a screw chuck on the knife bar, and there is the installing hole that cooperates with knife bar screw chuck rear end, and front end has the inner chamber of internal diameter greater than cutter head, and described interior cavity length is greater than the length of cutter head.During use the screw chuck is pushed into the screwdriver top, when the loading and unloading screw, screw can not come off out, can increase work efficiency.

Described screw chuck inner chamber is pre-large post-small horn shape, so that place screw.

A preferred version of the present utility model is that the screw chuck is made by insulating materials, and the wall of screw chuck inner chamber is provided with magnet.The screw that comes off in the screw chuck can be by magnet absorption in the screw chuck.

The utility model is by suit screw chuck on the knife bar of screwdriver, and when the loading and unloading screw, screw can not come off out, can increase work efficiency.And the screw chuck adopts insulation system, and except that driver bit exposed part metal, remainder is insulation, can be fit to charged occasion operation, can increase work efficiency, and guarantees the security of operation.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model user mode schematic diagram.

The specific embodiment

As shown in Figure 1, the utility model strap clamp cover screwdriver is made up of cutter head 1, knife bar 2, handle 4 and screw chuck 3 respectively.Cutter head 1 can be yi word pattern cutter head or cross cutter head.Screw chuck 3 is made by insulating materials, and there is the installing hole that cooperates with knife bar 2 screw chuck 3 rear ends, and screw chuck 3 can move along knife bar 2 by the installing hole of rear end; Screw chuck 3 front ends have the inner chamber 5 of internal diameter greater than cutter head 1, and inner chamber 5 is pre-large post-small horn shape, so that place screw, inner chamber 5 length can be enclosed within cutter head 1 part in its inner chamber 5 when 3 reaches of screw chuck greater than the length of cutter head 1; On the wall of screw chuck inner chamber 5 toroidal magnet 6 is housed, or the magnetic stripe that is provided with vertically, be used for adsorbing the screw 7 that comes off.

During use, as shown in Figure 2, behind the screw 7 that is fixed on 1 pair on the edge of a knife on the body of wall 8, screw chuck 3 is pushed into the top, this moment rotary handle 4, the screw 7 that unloads constantly enters in the screw chuck 7, and under the effect of screw chuck 3 and magnetic force, screw 7 can easily be fixed in the screw chuck 3 and unlikely falling; When screwing on screw 7, can be earlier screw 7 be inserted in the screw chucks 3, aim at screw 7 operations of tightening up a screw again.During without screw chuck 3, it is drawn back gets final product into handle 4 as shown in Figure 1.

Claims (3)

1. strap clamp overlaps screwdriver, comprise cutter head (1), knife bar (2) and handle (4), it is characterized in that: be set with a screw chuck (3) on the knife bar (2), there is the installing hole that cooperates with knife bar (2) screw chuck (3) rear end, front end has the inner chamber (5) of internal diameter greater than cutter head (1), and described inner chamber (5) length is greater than the length of cutter head (1).

2. strap clamp cover screwdriver according to claim 1, it is characterized in that: described screw chuck inner chamber (5) is pre-large post-small horn shape.

3. strap clamp cover screwdriver according to claim 1 and 2, it is characterized in that: described screw chuck (3) is made by insulating materials, and the wall of inner chamber (5) is provided with magnet (6).

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