1. Firstly, take out the fixing bracket of the automatic pipe winder and fix it in the ceiling or wall where all the load-bearing objects can be carried; 2. When the fixing bracket is fixed, insert the automatic pipe winder into the bracket, and the fixing bracket is even; 3. Take out the screw and tighten it from the side of the automatic pipe winder to ensure that the screw will not loose; 4. Then choose you. The angle and position of the required operation should be installed with the positioning screw from the side of the automatic pipe winder. 5. Self-rescue small-caliber reel assembly should be complete; 6. The specifications and models of water hose, water gun and fire hydrant matched with small-caliber reel; 7. The location of reel should be convenient to use and ensure that one or more jets reach any part of the same floor indoor; 8. The reel should be flexible and easy to use. The maximum spacing of fire hydrant is located in the vicinity of corridors and stairs, which is obviously easy to use. The spacing of fire hydrant should ensure that there are two water-filled water columns of fire hydrants at any part of the same floor at the same time. When the building height is less than or equal to 24m and the volume is less than or equal to 5000 cubic meters, a water-filled water column can be used to reach any part of the room. The spacing of indoor hydrants should be determined by calculation. The spacing of fire hydrants in high-rise industrial buildings, elevated warehouses, class A and B factories should not exceed 30m; the spacing of fire hydrants in other single-storey and multi-storey buildings should not exceed 50m.