CN2033307U

CN2033307U - Tube-curving hand vice

Info

Publication number: CN2033307U
Application number: CN 88211741
Authority: CN
Inventors: 潘金荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-05-06
Filing date: 1988-05-06
Publication date: 1989-03-01

Abstract

The utility model provides a tube-bending hand vice which is composed of a double-handle, a fulcrum mandrel and a bend tube holding component. The bend tube holding component is composed of a tube limiting block piece, a bend tube profiling and a bend tube force application facet. Using the lever principle, the tube limiting block piece delimits a tube on one side of the bend tube profiling, the tube on the other side of the bend tube profiling is impelled by the bend tube force application facet on the double-handle, and then the bending of the tube is realized on the bend tube profiling. Moreover, the bending rotation angle is smooth. Different bend tube profiling are changed, and the utility model can bend tubes with different rotation angle radiuses. The tube-bending hand vice is suitable for bending pipe lines less than phi 10 mm particularly. The utility model has the advantages of simple structure, small volume, light weight, easy operation and carrying.

Description

Manual pipe-bending spanner

The utility model relates to a kind of pincers class hand tools, particularly a kind of manual pipe-bending spanner.

Bending processing for the various pipelines of caliber more than φ 1/2 inch, mainly be to adopt motor machine bending machine, fluid pressure type bending machine and pneumatic type bending machine now to the pipe bending, and then bend pipe delivered to implement the place and install, but be that the copper tube below the φ 10mm, the bending processing of stainless steel tube, solid steel unit and other tubules footpath pipes below the φ 8mm then lack special equipment for caliber.Extensive application along with new technologies such as instrument automation, hydraulic pressure automations, as connection device, carry the tubule footpath pipeline bending processing of signal and transferring power just to become generally to need, if with above-mentioned bending machine to these tubules footpath pipe bending, then bad adaptability, the inefficiency of processing cost height, the change of operation place are therefore very inapplicable; Bend by hand pipe then yielding, the tube bending radius size of bending effort, troublesome poeration, tube wall differ, therefore be difficult to reach construction process requirement.

The purpose of this utility model be to provide a kind of simple in structure, easy to operate, bending is attractive in appearance and the manual pipe-bending spanner being convenient to carry.

Task of the present utility model is finished with following mode: manually pipe-bending spanner is made up of bend pipe base handle, actuating handle, connection fulcrum and hold assembly.Bend pipe pattern and bend pipe force surface on the spacing block piece of pipe on the base handle, the actuating handle have constituted hold assembly, and the fulcrum axle is connected in series bend pipe pattern, actuating handle and base handle successively.The pipe that the utilization lever principle will be bent places on the pattern of fulcrum, the pattern spacing block piece of pipe on one side defines an end of pipe, thereby the bend pipe force surface of pattern another side is made square to the other end of pipe is afterburning to fulcrum, bends the pipe of corner such as pattern radius.The pattern of displacement different radii just can bend the pipe of different knuckle radius, and is long more from pivot distance to the force position of handle, also big more to the torque of fulcrum, and bend pipe is also just laborsaving more.

Manual pipe-bending spanner provided by the utility model is because member is few and use the bend pipe pattern, therefore low cost of manufacture, in light weight, volume is little, the bent tube technique performance is good, as long as just can bend the pipe that to have smooth corner with arm strength, particularly suitable is the bending processing of following pipe of φ 10mm and solid steel light to caliber, and it is convenient especially to carry when pipeline installation, pipeline maintenance, bending reinforcing bar.

Below in conjunction with the accompanying drawings concrete structure of the present utility model is further described with embodiment:

Fig. 1 is the vertical view of a kind of concrete structure of the utility model.

Fig. 2 is that Fig. 1 structure is put and is twice the A-A cutaway view.

Be used to install the 1 fen spanner portion of pipe-bending spanner base handle and the installation portion of manual pipe-bending spanner critical piece, there are two installing holes on the installation portion plane, and the outside is the spacing block piece installing hole of pipe, and the inboard is a pipe-bending spanner fulcrum connection holes.Be used for the 8 fens spanner portions of pipe-bending spanner actuating handle and the connecting portion of bend pipe, there is a pipe-bending spanner fulcrum connection holes inboard, connecting portion plane, and there is the bend pipe force surface of a projection in the outside, plane.The spacing block piece of pipe is one one pulley 3 that has semi-circular groove week, and pulley axle 2 uses thread connection on base handle 1 by the base handle installing hole.The pattern of bend pipe is one one pulley 6 that has semi-circular groove week, the radius of semi-circular groove is by 1/2 of the bend pipe external diameter, fulcrum coupling spindle 4 two ends are threaded, it passes the fulcrum connection holes on pulley 6, the actuating handle 8, uses thread connection on base handle 1 by the fulcrum connection holes on the base handle.Wing nut 5 screws in fulcrum coupling spindle 4 upper ends and makes block.The bend pipe force surface that actuating handle 8 connecting portion planes are recessed is a folding face on the flat edge, the center line of pulley 3 and pulley 6 half slots is on same plane, convenient in order to lay pipe, two pulleys, half slot center line upside circumference respectively have one to be the breach at edge with the string.An internal common tangent of folding face and pulley 3 external diameters and pulley 6 external diameters in one plane.Bending adds man-hour, needs curved pipe one end supporting pulley 3 half slots, and pulley 6 half slots are being supported at the middle part, the other end is supporting the folding face of actuating handle 8, to the two handle application of forces, makes actuating handle 8 go to desired location, pipe is just bent needed corner, and bending radius equals the radius of pulley 6.If pipe-bending spanner is mainly to φ 10, φ 8, φ 6, φ 4(mm) the pipe bending processing of caliber, 1/2 of desirable four kinds of tube outer diameter are the half slot radius, make the pulley 6 of four kinds of specifications, as long as just turn on the pulley that wing nut 5 can be changed required specification before the bend pipe.If add the spanner portion of long handle, increase the half slot size of pulley 6, scope that just can the crooked caliber of corresponding expansion.

Claims

1, pincers class hand tools, particularly a kind of manual pipe-bending spanner of forming by handle, fulcrum axle and hold assembly, it is characterized in that handle is made up of pipe-bending spanner base handle 1 and actuating handle 8, hold assembly is made up of the bend pipe pattern on spacing block piece of the pipe on the base handle 1 and the actuating handle 8, bend pipe force surface, and fulcrum coupling spindle 4 is connected in series bend pipe pattern, actuating handle 8 and base handle successively.

2, pipe-bending spanner according to claim 1, the spacing block piece that it is characterized in that pipe are one one pulleys 3 that has semi-circular groove week, and pulley axle 2 uses thread connection on base handle 1.

3, pipe-bending spanner according to claim 1 is characterized in that the bend pipe force surface is the folding face that a projection is arranged on the actuating handle 8.

4, pipe-bending spanner according to claim 1 is characterized in that the bend pipe pattern is one one pulley 6 that has semi-circular groove week, and the radius of semi-circular groove is by 1/2 of the bend pipe external diameter.

5, according to claim 1 or 4 described pipe-bending spanners, it is characterized in that fulcrum coupling spindle 4 TBE (threaded both ends)s, on base handle 1, upper end and wing nut screw with thread connection in the lower end.

6, according to claim 1,2 or 4 described pipe-bending spanners, it is characterized in that on pulley 3, the pulley 6 the semi-circular groove center line at grade, and the upside circumference of center line respectively has one to be the breach on limit with the string.