Overhead conductor radius detection device

The invention relates to the technical field of electrical detection equipment, and particularly discloses an overhead conductor radius detection device which comprises a handheld rod, two tangent plates arranged oppositely and a measurement mechanism. The tangent plates are arranged at the top end of the handheld rod, the center line of the included angle of the two tangent plates coincides withthe center line of the handheld rod, and the measurement mechanism comprises an abutting piece and a braking assembly. The abutting piece is arranged between the two tangent plates and can slide relative to the handheld rod in the extending direction of the handheld rod, and the braking assembly is used for fixing the abutting piece and the handheld rod. When an overhead conductor abuts against the abutting piece and is tangent to the two tangent plates, the braking assembly fixes the abutting piece, and the distance between the abutting point and the intersection point D of the extension lines of the two tangent plat