CN2248610Y - Strong force shears for cutting steel bar - Google Patents

Abstract

The utility model relates to a pair of strong force shears for cutting steel bars, which comprises shear heads and shear handles. The rebound billiards is characterized in that the former is composed of an upper and a lower handles. The anterior part of the upper handle is provided with a small gear sector corresponding to a planet wheel, and the small gear sector and the rear end of a link plate of the shears are hinged with the rear end of the shear body of the anterior part of the lower handle. The anterior part of the link plate of the shears and a movable shear blade are hinged with the anterior part of the shear body. The latter is composed of the shear body and a shear blade, a movable shear blade and a top thread, fixed on the shear body. The movable shear blade is provided with a big gear sector which can be meshed with the small gear sector. Because the shears are adopted with toothed-gear drive, the utility model has the characteristics of labour saving, easy operation, large shearing force, light weight, low cost, etc.

Description

Powerful shear for cutting steel bar

The utility model relates to the metal sheet slitting instrument, particularly a kind of powerful shear for cutting steel bar of cutting off metal wire rods such as reinforcing bar, cable, steel wire rope.

At present, industry all departments need manual industry of cutting off metal wire rod, as used cutting implements such as the electrician of factory, enterprise, construction site, cement prefabricated component, wire rod drawing mill, every profession and trade, cable factory, wire rod manufactory, wire rope factories, normally common tool setting formula scissors, this scissors exists shearing force little, the weight height, volume is big, deficiencies such as cost is higher, and is not wear-resisting, and the life-span is short.

The problem that the utility model exists at prior art, design provides a kind of simple in structure, easy to use, and shearing force is big, can cut off the reinforcing bar of below 16 millimeters, and is in light weight, the powerful shear for cutting steel bar that cost is low.

The utility model is achieved by following manner: a kind of powerful shear for cutting steel bar, comprise that scissors bit and scissors are two parts, it is characterized in that: said scissors is made of part up knob and following handle, wherein, the up knob front end is provided with the little sector gear that is equivalent to planetary gear, the two is articulated in down the scissor body rear portion of handle front end by little axle the rear end of the centre bore of little sector gear and the scissors carrier bar that is provided with previously thereof, and the bottom circular hole of scissors chain front edge of board and scissors bit movable scissors sheet front end cutting edge partly the two be articulated in down the scissor body front portion of handle front end by axle.Said scissors bit part by with following handle be one and the scissor body of its front end and on fixed blade sheet by the screw installation, cooperate the movable scissors sheet of shearing and being articulated in the scissor body front portion by axle and scissors chain front edge of board jointly with the fixed blade sheet, and the jackscrew that fixed blade sheet front end is provided with is formed, wherein, movable scissors sheet rear design for can with the engagement of little sector gear and be equivalent to sun gear big sector gear, the upper front end of movable scissors sheet and bottom are designed to cutting edge respectively and are used for hinged circular hole, the screw both sides horizontal direction of fixed blade sheet offers and can make it move horizontally the rectangular channel of regulating the cutting edge gap, and its rear portion then is the cutting edge that cooperates with movable scissors sheet cutting edge.Aforementioned said jackscrew also has been the effect of secured adjusted fixed blade sheet.Present technique use and principle are: when having removed up knob, the little sector gear of its front end counterclockwise rotates around little axle, and the big sector gear clockwise direction that drives the movable scissors sheet rear portion that is engaged with sways, thereby movable scissors sheet front end cutting edge is opened backward, be that cutting edge gap between movable scissors sheet and the fixed blade sheet increases and opens, put the metal wire rod that to cut off this moment into, as reinforcing bar etc., when depressing up knob downwards, each parts is opposite with the aforementioned movement process, and reinforcing bar is promptly cut off.

The utility model is compared with prior art, has characteristics simple in structure, easy to use, owing to adopt gear drive, reduced externally applied forces, be fit to weak labour's manual operations, and shearing force has increased 2-3 doubly, can cut off the reinforcing bar of below 16 millimeters, simultaneously, can select for use the A3 steel to make, cutting edge is partly used a spot of tool steel, the original light 8-10 of cast steel scissors of weight ratio doubly, cost reduces 6-8 doubly, and manufacturing process is simple etc.Usually need not cast and die forging directly processing and manufacturing.

Fig. 1 is a front perspective view of the present utility model.

Fig. 2 is rear side stereogram of the present utility model (opposite with Fig. 1 direction).

Fig. 3 is the partial enlarged drawing of the little sector gear engagement of the big sector gear at movable scissors sheet of the present utility model rear portion and up knob front end.

Among the figure: 1 scissor body, 2 jackscrews, 3 screws, 4 fixed blade sheets, 5,6 movable scissors sheets, 7 scissors carrier bars, 8 little axles, 9 little sector gears, 10 up knobs, 11 times handles, 12 big sector gears, 13 cutting edges, 14 cutting edges, 15 circular holes, 16 centre bores, 17 rectangular channels.

Cui embodiment of the present utility model, as Figure 1-3.A kind of powerful shear for cutting steel bar, comprise that scissors bit and scissors are two parts, it is characterized in that: said scissors is made of part up knob 10 and following handle 11, wherein, up knob 10 front ends are provided with the little sector gear 9 that is equivalent to planetary gear, the two is articulated in down the rear portion of the scissor body 1 of handle 11 front ends by little axle 8 rear end of the centre bore 15 of little sector gear 9 and the scissors carrier bar 7 that is provided with previously thereof, and the bottom circular hole 15 of scissors carrier bar 7 front ends and scissors bit movable scissors sheet 6 front end cutting edges partly the two be articulated in down scissor body 1 front portion of handle 11 front ends by axle 5.Said scissors bit part by with following handle 11 be one and the scissor body 1 of its front end and on pass through the fixed blade sheet 4 of screw 3 installations, cooperate the movable scissors sheet 6 of shearing and being articulated in scissor body 1 front portion by axle 5 and scissors carrier bar 7 front ends jointly with fixed blade sheet 4, and the jackscrew 2 that fixed blade sheet 4 front ends are provided with is formed, wherein, movable scissors sheet 6 rear design for can with 9 engagements of little sector gear and be equivalent to sun gear big sector gear 12, the upper front end of movable scissors sheet 6 and bottom are designed to cutting edge 13 respectively and are used for hinged circular hole 15, the screw 5 both sides horizontal directions of fixed blade sheet 4 and being provided with can make it move horizontally the rectangular channel 17 of regulating the cutting edge gap, and its rear portion then is the cutting edge 14 that cooperates with movable scissors sheet cutting edge 13.Present technique can manufacture large, medium and small all size according to user's needs.

Claims (1)

1. A kind of powerful shear for cutting steel bar comprises that scissors bit and scissors two parts, is characterized in that:

   A, said scissors are made of part up knob and following handle, wherein, the up knob front end is provided with the little sector gear that is equivalent to planetary gear, the two is articulated in down the scissor body rear portion of handle front end by little axle the rear end of the centre bore of little sector gear and the scissors carrier bar that is provided with previously thereof, and the bottom circular hole of scissors chain front edge of board and scissors bit movable scissors sheet front end cutting edge partly the two be articulated in down the scissor body front portion of handle front end by axle;

   B, said scissors bit part by with following handle be one and the scissor body of its front end and on fixed blade sheet by the screw installation, cooperate the movable scissors sheet of shearing and being articulated in the scissor body front portion by axle and scissors chain front edge of board jointly with the fixed blade sheet, the jackscrew that fixed blade sheet front end is provided with is formed, wherein, movable scissors sheet rear design for can with the engagement of little sector gear and be equivalent to sun gear big sector gear, the upper front end of movable scissors sheet and bottom are designed to cutting edge respectively and are used for hinged circular hole, the screw both sides horizontal direction of fixed blade sheet and being provided with can make it move horizontally the rectangular channel of regulating the cutting edge gap, and its rear portion then is the cutting edge that cooperates with movable scissors sheet cutting edge.

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