Intelligent manhole cover for power tunnel

Abstract

The present invention relates to an intelligent manhole cover special for an electric power tunnel. The intelligent manhole cover comprises a cylindrical base at an opening of a manhole and a cover plate mounted at the top end of the base to seal the base. Internal threads are formed in the inner wall of the top of the base, while an external thread mounting portion matching with the internal threads is disposed at the central position of the bottom of the cover plate. A sunk groove is formed in the top end face of the base, and a first pressure sensor is mounted in the sunk groove. A plurality of support lugs are annularly disposed along the periphery of the inner wall of the bottom of the base at intervals; an inner supporting plate is placed on the support lug, and a second pressure sensor is mounted between each support lug and the inner supporting plate. Environment monitoring sensors and a light sensing probe are also mounted on the inner wall of the base. The intelligent manhole cover also comprises a controller and an alarm device. Signal output ends of the various sensors, the signal output end of the light sensing probe and the control input end of the alarm device are all electrically connected to the controller. The intelligent manhole cover special for an electric power tunnel is simple in structure, convenient to implement, high in intelligent level, and good in protection effect, and is integrated with a plurality of monitoring and protection functions.

Description

technical field [0001] The invention relates to the field of power facilities, in particular to a special intelligent manhole cover for power tunnels. Background technique [0002] The interior of the power tunnel is an independent closed space, in which a large number of power cables and other facilities are laid, and it bears the heavy responsibility of urban power supply. In order to facilitate operation and maintenance work, a "manhole" for operation and maintenance personnel to enter and exit is set at a certain distance on the power tunnel. Manholes are generally located on green belts, sidewalks or roadways. [0003] The manhole of the power tunnel is simply covered with a cover plate. The cover plate only serves to close the manhole and has almost no other functions, let alone intelligent self-protection and management functions. In specific use, there are the following deficiencies: ①The installation of the cover plate is not firm, and it is easy to detach from th...

AI Technical Summary

Problems solved by technology

[0003] The manhole of the power tunnel is simply covered with a cover plate. The cover plate only serves to close the manhole and has almost no other functions, let alone intelligent self-protection and management functions. In specific use, there are the following deficiencies: ①The installation of the cover plate is not firm, and it is easy to detach from the manhole opening, forming a dislocation phenomenon and causing the manhole to be exposed; ②There is no textual information describing its attributes on the manhole cover, which is not convenient for operation and maintenance management; ③External rainwater and sewage are easily It flows into the tunnel through the manhole, thereby destroying the insulation of the power facilities and causing a power outage; ④ When the cover plate is damaged or dislocated, it cannot send a message in time to notify the operator to carry out maintenance; 5. Due to the damage and dislocation of the cover plate, the manhole is exposed. It is very easy to cause pedestrians and vehicles to fall into the manhole, resulting in personal casualties and property damage accidents; ⑥After the cover is closed, the internal environment (smoke, temperature, humidity) information of the power tunnel cannot be sent to the operation and maintenance personnel in real time. Unable to control in time

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