CN2258109Y

CN2258109Y - Angle adjustable screwdriver

Info

Publication number: CN2258109Y
Application number: CN 96215618
Authority: CN
Inventors: 李松敏
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-07-17
Filing date: 1996-07-17
Publication date: 1997-07-23
Anticipated expiration: 2006-07-17

Abstract

The utility model relates to an angle adjustable screwdriver. A pull-over seat is pivoted on a handle to form a break over and fixing structure; the front end of the handle is equipped with a conduit; a side wall is equipped with a through hole; the other side wall opposite to the through hole is equipped with a blind hole opposite to the through hole, and an elastic element is equipped in the blind hole; a pin rod with a slot on one side passes into the through hole and contacts the elastic element. The back end of the pull-over seat forms an extending panel; a plurality of clip conduits are equipped on one side edge of the periphery of the extending panel to match and to pivot joint in the conduit; the extending panel can rotate in the conduit by pushing a pin rod compression elastic element; the elastic element elastically pushes the pin rod to move; the slot side of the pin rod clamps into a clip conduit of the extending panel to fix the pull-over seat. The structure to control the break over is simple, which can reduce the cost.

Description

The screwdriver of adjustable turn over knuckle degree

The utility model relates to a kind of field of hand and is used for fastening, dismounting or clamping tools, particularly relate to a kind of structure and more simplify than traditional product, and adjust angle and fixing after the screwdriver of more certain adjustable turn over knuckle degree.

Screwdriver is the indispensable instrument of loading and unloading screw, and the position of screw locking be positioned at sometimes corner, near wall place or other hands be difficult for stretching and the place, thereby then caused the difficult of loading and unloading screws.Therefore design a kind of screwdriver of adjustable turn over knuckle degree, by the design of its suitable angle of can transferring, when making the screwdriver head of an end be matched with the screw terminal at narrower and small place, the handle of the other end then may extend to broad position to help operation by human hand.

See also figure seat 4, shown in Figure 5, the screwdriver of traditional adjustable turn over knuckle degree, it includes leader A, a rotary disk basement B, a shifting axle C, a spring D and a pivot E, wherein, this handle A is formed with a conduit A0, the pivot hole A1 that is provided with mutual correspondence and runs through at relative two sidewalls of this conduit A0, and be provided with the macropore A3 that always passes to conduit A0 in the appropriate location of a sidewall, another sidewall then is provided with an aperture A2 in the position corresponding to this macropore A3; This shifting axle C is formed with the enlarged head C1 of an external diameter corresponding to above-mentioned macropore A3 internal diameter at the one end, and be provided with a C2 of microcephaly portion in the appropriate position, stage casing, and be provided with the axostylus axostyle C3 of an external diameter corresponding to above-mentioned aperture A2 internal diameter at the other end, after being inserted in a spring D on this axostylus axostyle C3, again this axostylus axostyle C3 is packed in the aperture A2 by macropore A3 place, and fasten in the circular groove that is located at axostylus axostyle C3 so that shifting axle C can not break away from a clasp F, it makes the enlarged head C1 end of shifting axle C have the gesture of outside ejection by this spring D; This rotary disk basement B is provided with a through hole B1 in its appropriate position, the one end is provided with a trepanning B2 who supplies screwdriver head G to be inserted in, one side periphery of the other end is provided with that several are outstanding and corresponding to the circular groove B3 of the shifting axle C microcephaly C2 of portion surface radian, when being engaged in rotary disk basement B in the conduit A0, pass pivot hole A1 and through hole B1 is articulated the two by pivot E, make rotary disk basement B in conduit A0, freely to rotate.The frame mode of its control rotary disk basement B rotational angle, be that elastic force by spring D acts on the C2 of microcephaly portion, the arc-shaped surface of the C2 of microcephaly portion is snapped in the circular groove B3 of rotary disk basement B to fix this rotary disk basement B, then compress spring D when pushing this enlarged head C1 simultaneously, and then making the blocking of the C2 of microcephaly portion disengaging to circular groove B3, can adjust the rotational angle of rotary disk basement B this moment.

Though the screwdriver of above-mentioned conventional adjustable turning angle can reach the function of adjusting angle, but its structure is comparatively complicated, manufacturing cost is higher, and is engaged in the circular groove B3 of rotating disk by the axostylus axostyle C3 of circular arc, and it also may produce slippage and the situation that causes rocking when application of force transmission.

Because the drawback of the screwdriver of above-mentioned traditional adjustable turn over knuckle degree, the design people is based on abundant practical experience and professional knowledge, through constantly studying, design, and after studying sample repeatedly and improving, creates the utility model finally.

Main purpose of the present utility model is, overcomes the deficiencies in the prior art, and a kind of screwdriver of adjustable turn over knuckle degree of new structure is provided, and the structure of its control turnover is more simplified than traditional product, can reduce production costs.

Of the present utility model time a purpose is, a kind of screwdriver of adjustable turn over knuckle degree of new structure is provided, the blocking that the draw-in groove that makes its pin rod short slot cooperation by ㄇ shape also be ㄇ shape adjusts after the angle is fixed, and it can be rocked when application of force transmission more really and not.

The purpose of this utility model is realized by following technical scheme.A kind of screwdriver of adjustable turn over knuckle degree, it includes a leader and a cover headstock, this cover headstock is hubbed on the handle, and the relative structure of doing turnover and being fixed at this handle of formation, it is characterized in that: this handle, its front end is provided with a conduit, sidewall at this conduit is provided with a through hole, relatively the inner face at another sidewall of this through hole is provided with a blind hole corresponding to this through hole, in this blind hole, inserted a flexible member, and in this through hole, penetrate the pin rod that a side forms short slot, and contact at this flexible member; This overlaps headstock, be formed with an extension board in its back-end, and periphery one lateral margin of this extension board is provided with several draw-in grooves, this extension board is engaged in the conduit of handle and is articulated in this conduit, it promotes pin rod and compression elastic element rotates this extension board in conduit, the elastic force of flexible member promotes this pin rod and moves, and its short slot one side snaps in a draw-in groove of extension board and fixes this cover headstock.

The purpose of this utility model can also further realize by following technical measures.The screwdriver of aforesaid adjustable turn over knuckle degree, the appropriate location of wherein said its front end of handle is provided with one and laterally runs through the pivot hole that this conduit is positioned at two sidewalls relatively, and be provided with the screw in a corresponding above-mentioned handle pivot hole in the extension board appropriate location of cover headstock, this extension board is engaged in the conduit of handle, this screw is corresponding to the pivot hole of handle, and is provided with screw and articulates and be integral.The screwdriver of aforesaid adjustable turn over knuckle degree, the short slot of wherein said pin rod and the draw-in groove of extension board all are to form ㄇ shape groove.

The utility model compared with prior art has tangible advantage and good effect.By above technical scheme as can be known, the screwdriver of the utility model is adjustable turn over knuckle degree, it is provided with a cover headstock at handle pivot, this pullover base rear end is formed with extension board, and a peripheral lateral margin is provided with several draw-in grooves, be matched with flexible member and make it have the pin rod of the gesture of elastic telescopic and be provided with one at handle front end appropriate location, one side of this pin rod is provided with a short slot, elastic force by this flexible member, make it snap in the draw-in groove of extension board and fix this cover headstock at order short slot one end of pin rod of nature, then can make the blocking of this draw-in groove disengaging when pushing this pin rod, can adjust the turning angle of cover headstock in view of the above extension board.The structure of its control turnover than traditional product more the blocking after the precision fix the situation that it can be shaken more really and not when application of force transmission.

In sum, structure of the present utility model is more simplified than traditional product, and more stable certain after the adjustment angle is also fixing, thereby more is suitable for practicality, no matter it structurally or bigger improvement is all arranged on the function, really is a new and innovative, progressive, practical new design.

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

Fig. 1 be the utility model structure face the plan cross-section exploded view.

Fig. 2 is the section plan of facing after the utility model combination.

Fig. 3 is the top plan view action diagram that the utility model will overlap the headstock turnover.

Fig. 4 is the STRUCTURE DECOMPOSITION stereogram of the screwdriver of conventional adjustable turning angle.

Fig. 5 is the section plan after the screwdriver of conventional adjustable turning angle among Fig. 4 makes up.

Below in conjunction with accompanying drawing and preferred embodiment, to its concrete structure of screwdriver, feature and effect thereof according to the adjustable turn over knuckle degree that the utility model proposes, describe in detail as after.

See also shown in Figure 1, the screwdriver of the utility model is adjustable turn over knuckle degree, it mainly includes leader 1, one cover headstock 2, one pin rod 3 and a flexible member 4, wherein, this handle 1, its preferred embodiment is to be provided with a conduit 11 at its front end, and be separated out two sidewalls by this conduit 11, sidewall at this conduit 11 is provided with a through hole 13, relatively the inner face at another sidewall of this through hole 13 is provided with a blind hole 14 corresponding to this through hole 13, this flexible member 4 is arranged in this blind hole 14, pin rod 3 is penetrated and contacts on this flexible member 4 by through hole 13, and pin rod 3 is provided with a short slot 31 at the one side.This cover headstock 2 is formed with a trepanning 22 that can supply the screwdriver head (not shown) to be inserted at its front end, one extension in its back-end is provided with an extension board 21, periphery one lateral margin of this extension board 21 is provided with several draw-in grooves that is shape 212 (as shown in Figure 3), and the appropriate location of this extension board 21 is provided with a screw 211; The fit structure mode of this cover headstock 2 and handle 1, be that the extension board 21 that will overlap headstock 2 is engaged in the conduit 11 of handle 1, after making the pivot hole 12 of screw 211 on the extension board 21 corresponding to handle 1, pass in the screw 211 that this pivot hole 12 is arranged in extension board 21 with a screw 5 again and finish pivot joint, and extension board 21 can freely be rotated in conduit 11.

See also shown in Figure 2, combined by above-mentioned structure, when the turning angle of headstock 2 is overlapped in the desire adjustment, directly push the end of the pin rod 3 that protrudes in handle 1, this moment, flexible member 4 was promptly suppressed and storage power, make the short slot 31 of pin rod 3 break away from the draw-in groove 212 of extension board 21, this moment can be with cover headstock 2 according to the suitable angle of using (as shown in Figure 3) of needs rotation, treat to decontrol this pin rod 3 again after angle adjustment is finished, can utilize the elastic restoring force of flexible member 4 that pin rod 3 outside bullets are moved this moment, and make an end of its short slot 31 snap into the draw-in groove 212 of extension board 21 and can prevent to overlap headstock 2 rotations.By the shape short slot 31 of pin rod 3 of the present utility model, cooperate the shape draw-in groove 212 of extension board 21, can obtain preferable stability, and its contexture part is less, structure is very simplified, and can reduce production costs.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model changes any simple modification modification, change and the equivalent structure that above embodiment did, and all still belongs in the scope of technical solutions of the utility model.

Claims

1, a kind of screwdriver of adjustable turn over knuckle degree, it includes a leader and a cover headstock, and this cover headstock is hubbed on the handle, and forms the structure of doing turnover and being fixed at this handle relatively, it is characterized in that:

This handle, its front end is provided with a conduit, sidewall at this conduit is provided with a through hole, relatively the inner face at another sidewall of this through hole is provided with a blind hole corresponding to this through hole, in this blind hole, inserted a flexible member, and in this through hole, penetrate the pin rod that a side forms short slot, and contact at this flexible member;

This overlaps headstock, be formed with an extension board in its back-end, and periphery one lateral margin of this extension board is provided with several draw-in grooves, this extension board is engaged in the conduit of handle and is articulated in this conduit, it promotes pin rod and compression elastic element rotates this extension board in conduit, the elastic force of flexible member promotes pin rod and moves, and its short slot one side snaps in a draw-in groove of extension board and fixes this cover headstock.

2, the screwdriver of adjustable turn over knuckle degree according to claim 1, the appropriate location that it is characterized in that described its front end of handle is provided with one and laterally runs through the pivot hole that this conduit is positioned at two sidewalls relatively, and be provided with the screw in a corresponding above-mentioned handle pivot hole in the extension board appropriate location of cover headstock, this extension board is engaged in the conduit of handle, this screw is corresponding to the pivot hole of handle, and is provided with screw and articulates and be integral.

3, the screwdriver of adjustable turn over knuckle degree according to claim 1 and 2 is characterized in that the short slot of described pin rod and the draw-in groove of extension board all are to form ㄇ shape groove.