CN2207890Y

CN2207890Y - Hand pipe bender

Info

Publication number: CN2207890Y
Application number: CN 94218492
Authority: CN
Inventors: 刘凤玉; 张应友; 张发祥; 孟庆森
Original assignee: 马素梅
Priority date: 1994-08-19
Filing date: 1994-08-19
Publication date: 1995-09-20
Anticipated expiration: 2004-08-19

Abstract

The utility model relates to a hand pipe bender, relating to a tool which is especially used for processing and bending metal straight pipes to bent pipes. The utility model is composed of a bent pipe head and an operating handle arranged at the top of the bent pipe head. The bent pipe head is approximately in the shape of a sector, the bottom of the bent pipe head is provided with a circular pipe rail, and the exterior of the pipe rail is marked with scales for indicating the bending angles of metal pipes. One end of the pipe raid is provided with an open pipe hole which is provided for the bent metal pipes to insert, the inner wall of the open pipe hole is provided with an antiskid groove, and the external part of the pipe rail is provided with pedals for pedaling and pressing. The utility model has convenient operation, little consumption of labor and accurate bending angles of the metal bent pipes which are processed and bent, and is especially suitable for processing and bending various metal pipes.

Description

Hand pipe bender

The utility model relates to a kind of instrument that metal straight pipe processing is bent to bend pipe that is exclusively used in.

In the processing technology of metal tube, often need utilize pipe bender that metal straight pipe processing is bent to bend pipe.Pipe bender of the prior art mainly is made of corner and the operating grip that is connected in the corner top, the corner almost fan, and its bottom has the pipe rail groove of circular arc, and an end of pipe rail groove has the opening pipe hole that is used to insert by curved metal tube.During bend pipe, will be inserted in the opening pipe hole by curved metal tube earlier, and by operating grip the corner reinforcing be pressed down then, metal tube promptly is bent to arc along pipe rail groove.This manual pipe bender relatively simple for structure realized but the bend pipe operation relies on the operator to press down corner by the operating grip reinforcing fully, so its operation dislikes inconvenience slightly, and operator's labour intensity is also bigger.In addition, because pipe rail groove and pipe hole inner wall smooth, add the man-hour metal tube and easily slide in pipe hole and pipe rail groove and cause bending point dislocation and angle of bend inaccurate, angle of bend is also restive.

The purpose of this utility model promptly is the improvement suitable in addition to the structure of manual pipe bender of the prior art, makes it more convenient to operate laborsaving and be convenient to accurately control the angle of bend of bend pipe.

To achieve these goals, the utility model is set up one in the outer end of the existing manually curved sub-rail groove of organ pipe and is used for the pedal that pressure is pedaled in reinforcing, and reinforcing presses down elbow so that the operator can use both hands and feet.Simultaneously, add anti-slip tank and increase the scale of indicating angle of bend at pipe hole inwall, so that accurately control angle of bend in the pipe rail groove outside.Be described in further detail below in conjunction with the technical characterictic of specific embodiment the manual pipe bender of the utility model.

Accompanying drawing 1 is the structural representation of the manual pipe bender of the utility model;

Accompanying drawing 2 is the A-A cutaway view.

With reference to the accompanying drawings 1,2, the manual pipe bender of the utility model mainly is made of corner 1 and the operating grip 2 that is connected in corner 1 top.Corner 1 almost fan, its bottom has the pipe rail groove 3 of circular arc, one end of pipe rail groove 3 has the opening pipe hole 4 that is used to insert by curved metal tube, have anti-slip tank 5 on 4 inwalls of pipe hole, the outer end of pipe rail groove 3 has the pedal 6 that is used to pedal pressure, and the outside of pipe rail groove 3 indicates the scale 7 of expression metal tube angle of bend.

During bend pipe, will be inserted in the pipe hole 4 by curved metal tube earlier, and by operating grip 2 and foot-operated 6 reinforcings elbow 1 be pressed down then, metal tube can bend to arc along pipe rail groove 3, and angle of bend can be read from the scale in the pipe rail groove outside.

The utility model is easy to operate, laborsaving, and the crooked metal tube angle of bend of processing can accurately be controlled.Therefore, the utility model is particularly suitable for manually processing the bending metals pipe.

Claims

1, a kind of manual pipe bender that metal straight pipe processing is bent to bend pipe that is exclusively used in, constitute by corner and the operating grip that is connected in the corner top, the corner almost fan, its bottom has the pipe rail groove of circular arc, and an end of rail groove has the opening pipe hole that is used to insert by curved metal tube; The outer end of described pipe rail groove that is characterised in that of the present utility model has the pedal that is used to pedal pressure, and the outside of pipe rail groove indicates the scale of expression metal tube angle of bend, has anti-slip tank on the inwall of pipe hole.