The speed difference of the runner is used for automatic control, high hanging and low using. When working, the anti falling hook at the upper end of the anti falling device is hung on the structural frame above the working point, and the anti falling hook at the lower end is hung on the safety belt of the staff. When the falling speed of the steel wire rope exceeds 1 m / s, the runner drives the brake tooth to brake the runner, and the steel wire rope is stopped, so that the staff can not fall. After the danger is eliminated, the force on the wire rope is released. Under the action of the spring, the runner rotates in reverse direction to reset the brake teeth, release the runner, and the anti falling device returns to normal working state
China labor insurance net