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With the vigorous construction of the smart city, more and more public infrastructure began to move towards intelligence, digitalization and technology, and the smart well cover came into being, and now the smart well cover has become an important component module in the construction of the smart city. Aiming at the problems of road safety caused by waterlogging on urban roads and well cover displacement due to well covers, as well as the inefficiency of well cover operation and maintenance, this paper designs an anti-flooding and smart inspection smart well cover, which consists of anti-sludge blocking device, electro-permanent magnetic suction device and intelligent ultrasonic liquid level sensor and analyzes its performance. Firstly, the design of anti-sludge device is completed based on the transmission principle of gear and rack; secondly, the ultrasonic level sensor and electric permanent magnet suction device are analyzed in principle; finally, the material analysis and finite element analysis of the manhole cover are carried out based on the design specification of urban road engineering. Intelligent manhole cover effectively alleviates urban flooding phenomenon, prevents manhole cover displacement, improves the supervision efficiency of municipal departments on manhole cover, reduces road safety hazards, and vigorously promotes the construction of smart city.
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