A few days ago we learned about some of the knowledge of Skynet's safe city pole: the technical details and installation requirements of the monitoring pole in safe city, many people feel unsatisfied, always feel that it is standard knowledge and common requirements, not good operation Not practical. Ever since, at the request of the majority of friends, we have compiled some of our common e-police octagonal data to share with everyone.
The composition of the electronic police monitor pole:
The security monitoring pole serves as the main body for carrying various types of cameras, alarms, fill lights and other components and is mainly composed of poles, connecting flanges, shape arms, mounting flanges and embedded steel structures.
Video monitor pole common appearance form: cone and two straight rods
We often use the poles of the Skynet electronic police, which are generally tapered pipe poles; in which the tapered pipe poles are divided into: prismatic and conical.
Taper rods have the following advantages over the two-stage column poles: the processing process is simple: the cone poles directly use the steel plate to curl and then are welded to the welding process. There is almost no requirement for welding accuracy. The welding can be beautiful and reliable, and the weld seam is not direct. The durability and reliability are both high. The two-column pipe stem needs to be welded with an adapter between two straight pipes of different thicknesses, which requires high welding process. If the welding accuracy is not high, the problems of inconsistent and inconsistent axial directions of the upper and lower straight pipes tend to occur. In addition, the weld directly bears the gravity effect of the upper straight pipe, and the welding quality is not high enough to cause hidden troubles.
High wind resistance: Cone rods adopt an integrated process, and the forces in the axial and transverse directions are relatively uniform. The poles of two-stage columns need at least three parts to be welded. The overall strength depends to a large extent on the welding. Quality, and the force is not uniform so the strength is not as good as the former.
Appearance is more beautiful: the finer and thicker shape is more in line with most people's aesthetics. Straightening the tube too high makes it easy for people to feel top-heavy and unstable, thus creating an unsafe illusion.
Monitoring pole construction and installation:
Having said the components, let's talk about the installation of monitoring poles. The main construction steps are divided into: excavation pits, preset cages, concrete pouring, poles.
The cage should take fixed measures before pouring the concrete to ensure that the reinforced roof plane of the reinforced roof is measured horizontally in the two directions of the base roof; the concrete pouring of the monitoring base embedded part must be compacted to prevent concrete There is an empty drum.
The bolts fixing the pole to the ground cage shall not be less than M20 in general, and the height of the base surface of the cage protruding from the threaded part shall be greater than 70mm. All the nuts, gaskets and other structural parts used shall be national standard products.
The height of the monitor pole of the safe city is roughly 5-6 meters. During the installation process, the overall verticality of the installation is mainly noticed so as not to affect the use and aesthetics, and the verticality of the surrounding building body can be combined with the naked eye.
In fact, the deviation of the verticality of the vertical pole is approximately 1% visually almost impossible to detect, and when the deviation reaches 2%, the human eye can easily notice that the pole has a tilt.
The level of the upper flange and crossbar of the cone pole is critical
In fact, it must be ensured that the poles are erected after erection, and the horizontal poles are perpendicular to the horizontal plane. The most important point is to ensure that the pole mounting flange is perpendicular to the main body of the pole before leaving the pole.
Therefore, a reliable pole processing plant is critical. The verticality of the mounting flange of the pole and the main body of the rod largely depends on the welding process between the two. Therefore, it is necessary to conduct a certain inspection on the enterprises that produce poles in actual projects.
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