CN201369522Y

CN201369522Y - Adjustable rod clamp

Info

Publication number: CN201369522Y
Application number: CNU200820232514XU
Authority: CN
Inventors: 陈强
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-19
Filing date: 2008-12-19
Publication date: 2009-12-23
Anticipated expiration: 2018-12-19

Abstract

The utility model provides an adjustable rod clamp, which belongs to the field of power tools. The structure of the rod clamp comprises a first jaw, a second jaw, a jaw shaft, a first clamp arm and a third clamp arm; wherein the first jaw is fixed on the third clamp arm; the second jaw is fixed on the first clamp arm; the first clamp arm and the third clamp arm are articulated together through the jaw shaft; a second clamp arm is articulated with the third clamp arm and one end of a third rod; the jaw shaft is articulated with one end of a first rod; the first clamp arm is articulated with one end of a second rod; the free ends of the first rod, the second rod and the third rod are articulated together through the same articulated shaft; and the second clamp arm, the third clamp arm, the first rod and the third rod are formed into a parallelogram. Compared with the prior art, the adjustable rod clamp has the advantages of reasonable design, simple structure, safety, reliability, convenient use and easy maintenance; since the structure is adopted, the opening angle of the hand-held parts of the operating rods can be effectively prevented from being too large, and thereby operation is convenient.

Description

The adjustable bar pincers

Technical field

The utility model relates to a kind of electric power tool, specifically a kind of adjustable bar pincers.

Background technology

At present, the two bar pincers of the insulation of one of instrument that uses in the electric power system work high above the ground, its jaw is generally less, and the length of action bars is generally longer; When divesting cable insulation, if the diameter of cable is less, when jaw was clamped cable, the opening angle of action bars handgrip part was smaller so, and it is more convenient to operate; If the diameter of cable is bigger, when jaw was clamped cable, the opening angle of action bars handgrip part can be very big, so that a people can't operate; Though the scope that jaw can the clamping cable size is bigger,, cause the scope of clamping cable size extremely to be dwindled owing to can't operate; Owing to this reason, in personnel operation, need so both increase the weight of the work load of operation with going up the different two bar pincers of several specifications, strengthened the tool expense of equipment again.

Summary of the invention

The utility model provides a kind of adjustable bar pincers, and these bar pincers can effectively avoid the action bars handgrip part to open bigger angle.

The purpose of this utility model realizes according to following scheme; Comprise first jaw, second jaw, the pincers axle, first tong arm, the 3rd tong arm, first jaw is fixed on the 3rd tong arm, second jaw is fixed on first tong arm, and first tong arm and the 3rd tong arm are hinged by the pincers axle, be hinged with second tong arm on the 3rd tong arm, a wherein end of second tong arm and the 3rd bar is hinged, the pincers axle is hinged with a wherein end of first bar, a wherein end of first tong arm and second bar is hinged, and first bar, second bar, the free end of the 3rd bar is hinged by same jointed shaft, second tong arm, the 3rd tong arm and first bar, the 3rd bar constitutes a parallelogram.

The utility model compared with prior art, the beneficial effect that is produced is: reasonable in design, simple in structure, safe and reliable, easy to use, be easy to safeguard, adopt this structure, can effectively avoid the excessive situation of action bars handgrip part opening angle, be convenient to operation.

Description of drawings

Accompanying drawing 1 is the front view of adjustable bar pincers.

Reference numeral: first jaw 1, second jaw 2, pincers axle 3, first bar 4, first tong arm 5, second bar 6, the 3rd bar 7, second tong arm 8, the 3rd tong arm 9.

Embodiment

Do following detailed explanation below in conjunction with 1 pair of adjustable bar pincers of the present utility model of accompanying drawing.

As shown in Figure 1, adjustable bar pincers of the present utility model, its structure comprises first jaw 1, second jaw 2, pincers axle 3, first tong arm 5, the 3rd tong arm 9, first jaw 1 is fixed on the 3rd tong arm 9, second jaw 2 is fixed on first tong arm 5, and first tong arm 5 and the 3rd tong arm 9 are hinged by pincers axle 3, be hinged with second tong arm 8 on the 3rd tong arm 9, a wherein end of second tong arm 8 and the 3rd bar 7 is hinged, a wherein end of pincers axle 3 and first bar 4 is hinged, a wherein end of first tong arm 5 and second bar 6 is hinged, and first bar 4, second bar 6, the free end of the 3rd bar 7 is hinged by same jointed shaft, and second tong arm 8, the 3rd tong arm 9 and first bar 4, the 3rd bar 7 constitutes a parallelogram.

Because first bar 4 is fixing by second bar 6, thus during operation, first bar 4 all the time with second tong arm, 8 keeping parallelisms; First jaw 1, when second jaw 2 is open, second jaw 2 is fixed, preceding second tong arm 8 of gathering around just can be realized opening of first jaw 1; Because action bars does not need to open than wide-angle first jaw 1 is opened than wide-angle, under the prerequisite of the exhibition arm width that has dwindled the operating personnel, more can arbitrarily control the size that jaw is opened like this, effectively utilize the effective value in the specification limit.

Except that the described technical characterictic of specification, be those skilled in the art's known technology.

Claims

1, a kind of adjustable bar pincers, comprise first jaw (1), second jaw (2), pincers axles (3), first tong arm (5), the 3rd tong arm (9), first jaw (1) is fixed on the 3rd tong arm (9), second jaw (2) is fixed on first tong arm (5), and first tong arm (5) and the 3rd tong arm (9) are hinged by pincers axles (3), it is characterized in that, be hinged with second tong arm (8) on the 3rd tong arm (9), second tong arm (8) is hinged with a wherein end of the 3rd bar (7), pincers axles (3) are hinged with a wherein end of first bar (4), first tong arm (5) is hinged with a wherein end of second bar (6), and first bar (4), second bar (6), the free end of the 3rd bar (7) is hinged by same jointed shaft, and second tong arm (8), the 3rd tong arm (9) and first bar (4), the 3rd bar (7) constitutes a parallelogram.