CN86204262U - Combined screw-driver with double workhead rod - Google Patents

Abstract

The utility model provides a combined screw driver using double working heads as a rotary rod. The screw driver is characterized in that both ends of the rotary rod are the working heads. In this way, one half of the rotary rod can be saved on the basis of no influence of use functions, and the utility model can be conveniently carried and stored.

Description

Combined screw-driver with double workhead rod

The utility model belongs to a kind of improvement of combined type hand with screwdriver.

Existing combination screw driver, by handle and affixed thereon gripper jaw, the swing arm of binding nut and many different operating heads is formed.Swing arm one end is a working head, and the other end is a clamping part, and every swing arm is realized a function only, use the working head of difference in functionality need change corresponding swing arm, and its shortcoming is that rod member is too much, is unfavorable for carrying keeping.

Task of the present utility model is that a kind of improved combination screw driver will be provided.Under the prerequisite that does not reduce existing function of use, working head has all been made at the two ends of every swing arm, reach the purpose that reduces half swing arm, portable, easy keeping.

Structure of the present utility model is as follows:

A kind of knockdown screwdriver (Fig. 1) is fixed in the clamping three-jaw (2) on the handle by handle (1), is enclosed within outside the clamping three-jaw, utilizes the inclined-plane to the nut (3) that the clamping three-jaw clamps, and can insert handle and be held swing arm (4) composition that three-jaw clamps.It is characterized in that two kinds of working heads (5) and (7) of difference in functionality are made at swing arm (Fig. 2) two ends.Respectively there are one section (6) to make polygonal cross-section to prevent with respect to the handle rotation and to move axially at the position at the close working head two ends of swing arm, when selecting certain working head of a certain swing arm for use, the no working head of the other end can be inserted handle, and swing arm clamped, at this moment structure external form and existing combined screwdriver are basic identical.For the working head that makes the cutting edge broad also can insert handle, so that other end work, handle can be made hollowly, wide sword working head is inserted from the handle afterbody.

Preferred embodiment of the utility model is, the polygonal cross-section at swing arm two ends can be designed to regular hexagon, its length is identical with clamping three-jaw working portion length, can prevent effectively that swing arm from skidding and axial float, and the difference in functionality working head matched, make every swing arm at most only have a wide sword working head, easy to use, greatly improved operating efficiency.

Description of drawings:

Fig. 1 is the whole profile of screwdriver.

Fig. 2 is a screwdriver swing arm schematic diagram.

Claims (2)

1, one by handle (1), be fixed in clamping three-jaw (2) on the handle, be enclosed within nut (3) that the clamping three-jaw utilizes the inclined-plane that the clamping three-jaw is clamped outward, can insert handle and be held the combination screw driver that swing arm (4) that three-jaw clamps is formed, it is characterized in that, swing arm and handle are detachable, the swing arm two ends all are working head, and swing arm respectively has one section cross section to be polygon near the position at working head two ends.

By the described screwdriver of claim 1, it is characterized in that 2, the handle that wide sword working head is inserted is hollow.

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