A, attached lifting scaffolding must have anti-overturning, anti-falling and synchronous lifting control safety devices. 2. The overturning prevention device shall meet the following requirements: 1. The anti-overturning device must include a guide rail and more than two slidable guide pieces connected with the guide rail; 2. Anti-overturning guide rails shall be set within the scope of anti-overturning guide pieces and reliably connected with the vertical main frame; 3. Under the conditions of lifting and use, the minimum distance between the top and bottom guides shall not be less than 2.8 m or1/4 of the height of the frame; 4. It should have the function of preventing the vertical main frame from tilting; 5. Bolts shall be used to connect with the wall support, and the gap between the device and the guide rod shall not be greater than 5mm ... 3. The anti-falling device must meet the following requirements: 1. Anti-falling devices should be set at the vertical main frame and attached to the building structure, and there should be no less than one anti-falling device at each lifting point. The anti-falling device must work under the conditions of use and lifting; 2. The anti-falling device must be a mechanical full-automatic device, and it is forbidden to use manual devices that need to be reorganized every time;