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Do you know the composition of watchtower

It is a sight-seeing tool, which is mainly used in the fields of public security duty in traffic or mass activity places, police officers and soldiers monitoring in prison cells, duty defense at border posts, forest fire prevention in forestry departments, etc. It is a flexible tool for looking up from afar.

A watchtower comprises five bases, namely four watchtower bases and one escalator base.

watchtower

A frame body is arranged above the base, the four corners of the frame body are formed by connecting upright posts, and the tops of the four upright posts are connected with the upper upright post through upright post flanges so as to extend to a higher layer; The expansion screw fixes the escalator on the escalator base, the side edge of the escalator is connected with the upright post through a connecting piece, the top of the escalator and the upright post are a square platform, the four sides of the top of the square platform are welded with fences, the fences are covered with a layer of protective nets, the middle position of the top of the square platform is a viewing room, the viewing room is a steel structure cabin, the walls on four sides are respectively connected with reinforced steel beams near the roof and above the fences to increase the strength of the viewing room, the top of the viewing room is a tapered roof, steel purlins are connected on four sides of the tapered roof, and steel beams are fixed on four sides

watchtower

The base is distributed in four corners, and four are embedded in the base of the watchtower.

" L" type screw rod with two expansion screws embedded in the escalator base;

watchtower

A frame body is arranged above the base, the four corners of the frame body are formed by connecting upright posts, the two ends of the upright posts are upright post flanges, the upright post flanges at the bottom of the upright posts are connected and fixed by bolts and an L - shaped screw rod, the side surfaces of the top ends of the four upright posts are on the same horizontal plane, every two adjacent upright post flanges are connected by transverse steel beams, the middle positions of the bottoms of the four transverse steel beams are connected with the upright posts at the two sides through two reinforcing rods, and the tops of the four upright posts are connected with the upright posts at the upper layer through the upright post flanges so as to extend to a higher layer; The expansion screw fixes the escalator on the escalator base, the side edge of the escalator is connected with the upright post through a connecting piece, the bottom of the escalator is fixed with the upright post through an escalator bottom rod, the top of the escalator and the upright post are a square platform, the four sides of the top of the square platform are welded with fences, the fences are covered with a layer of protective nets, the escalator extends to the inside of the fences all the time, the middle position of the top of the square platform is a viewing room, the viewing room is a steel structure cabin, and the viewing room is on the square platform, Air conditioning is installed on the exterior wall of the observation room, doors and windows are installed on the wall near one side of the escalator, reinforced steel beams are respectively connected to the walls on the four sides of the observation room near the roof and above the fence, upright rods are vertically installed between the door frame and the window to increase the strength of the observation room, the top of the observation room is a tapered roof, steel purlins are connected to the four sides of the tapered roof, steel beams are fixed to the four sides, the steel purlins and the steel beams are fixed together by bolts, lightning rods are fixed to the eaves of the observation room, and lighting lamps are fixed under the eaves.