DEVICE FOR AUTOMATICALLY OPENING AND CLOSING OF THE MANHOLE LID USING AN ELECTROGNET

摘要

The present invention relates to an automatic opening and closing device for a manhole lid. The present invention solves problems, wherein a manhole lid is not easily opened or closed as foreign substances such as dust are hardened between circumferential surfaces of the manhole lid inserted into an upper end of a manhole support frame, the outer surface of the manhole lid is cracked or damaged when a bar such as a pipe is inserted into a groove of the manhole lid to lift up the manhole lid by a lever principle, efficiency of opening and closing work is decreased as the load of the manhole lid is heavy, and a worker stubs toes during the opening and closing work. The automatic opening and closing device for a lid comprises a moving table (100), a manhole lid detaching device (200), and a smart device (300). The automatic opening and closing device for a manhole lid receives the position of a manhole from a manhole management server in a remote place and transmits position data about the manhole to the foldable moving table. The automatic opening and closing device for a manhole lid can control general operation of the automatic opening and closing device for a manhole lid and the foldable moving table through a local area network. The automatic opening and closing device for a manhole lid facilitates attachment and detachment by removing foreign substances hardened between the circumferential surfaces of the manhole lid inserted into the upper end of the manhole support frame. The automatic opening and closing device for a manhole lid prevents the outer surface of the manhole lid from being damaged by enabling the worker to safely and automatically open and close the manhole lid using a magnetic force of an electromagnet without devoting energies of the worker. The automatic opening and closing device for a manhole lid using the electromagnet can improve work environment and facilitates the manhole lid opening and closing work.