Contact net supporting and positioning device

The utility model discloses a catenary supporting and positioning device which comprises a fixed curved bar and a movable straight bar, the radius of the fixed curved bar is equal to that of the movable straight bar, an extending straight plate is arranged on the head portion of the fixed curved bar, and a main clamping plate and an auxiliary clamping plate are arranged on the two sides of the extending straight plate respectively. The bottoms of the main clamping plate and the auxiliary clamping plate are connected to the tail of a movable straight rod, a hanging buckle is arranged on the head of the movable straight rod, a fixing ring is arranged on the end face of the outer side of the main clamping plate, a stand column is arranged on the front end face of the fixing ring, an adjustable rectangular protruding plate is arranged on the rear end face of the stand column, and an outer adjusting plate is arranged on the front end face of the stand column. The utility model relates to a supporting and positioni