Anti-collision spacing limiting device for high-altitude tower crane

The utility model discloses an anti-collision spacing limiting device for a high-altitude tower crane, and particularly relates to the field of high-altitude tower cranes, the anti-collision spacing limiting device comprises an anti-collision control box body and a laser range finder which are fixed on two sides of one end of a tower crane suspension arm, one side of the laser range finder is fixedly connected with a mounting plate, and one side of the mounting plate is fixedly connected with a fixed insertion rod. The distance between one end of the tower crane suspension arm and an object is detected through the distance sensor and the laser range finder, and when the distance reaches a preset danger value, the alarm automatically gives out an alarm sound to remind a worker to stop operation in time, space limitation is achieved, and the anti-collision effect is achieved; the anti-collision control box body is conveniently and preliminarily hung on one side of one end of the tower crane suspension arm throu