A pipe support for expanding a channel pipe comprises a fixed beam (6) with a rack the fixed beam (6) being provided with a movable support leg (7) which can move along the fixed beam (6) the movable support leg (7) being provided with a movable rotation handle (5) having a ratchet wheel one end of the fixed beam (6) being fixed with a fixed support leg (9) top ends of the movable support leg (7) and the fixed support leg (9) being provided with a rotatable support leg (8) which is provided with a channel pipe fixing bolt (1) and can unidirectionally rotate, respectively the movable support leg (7) and the fixed support leg (9) being provided with a fixed boss (4), respectively the two rotatable support legs (8) being provided with a rotatable boss (2) corresponding to the fixed boss (4), respectively and the two rotatable bosses (2) being provided with screw holes for receiving rotatable bolts (3). The fixed boss (4) on the movable support leg (7) is integrally formed with the movable support leg (7). The fixed boss (4) on the fixed support leg (9) is integrally formed with the fixed support leg (9). The rotatable bosses (2) on the two rotatable support legs (8) are integrally formed with the rotatable support legs (8).Linvention porte sur un support de tuyau pour lexpansion dun tuyau à regard. Ce support de tuyau comprend une poutre fixe (6) ayant une crémaillère la poutre fixe (6) étant dotée dun pied support mobile (7) qui peut se déplacer le long de la poutre fixe (6) le pied support mobile (7) étant doté dune poignée de rotation mobile (5) ayant une roue à rochet une extrémité de la poutre fixe (6) étant fixée par un pied support fixe (9) les extrémités supérieures du pied support mobile (7) et du pied support fixe (9) comportant chacune un pied support tournant (8) qui comporte un boulon de fixation de tuyau à regard et peut tourner de façon unidirectionnelle le pied support mobile (7) et le pied support fixe (9) comportant un bossage fixe (4), respectiv
