A manhole cover with reminding function

Abstract

The invention discloses a manhole cover with a warning function. The manhole cover comprises a manhole cover body and a manhole cover holder matching with the manhole cover body. A photoelectric sensor is arranged at the connection of the manhole cover holder and the manhole cover body. The manhole cover holder located on the periphery of the manhole cover body is provided with a circle of a light emitting member controlled by a PLC which is connected to the photoelectric sensor. The manhole cover further comprises a voice module and a human body infrared sensor which is used for detecting human body infrared signals. The voice module and the human body infrared sensor are both connected to the PLC. According to the manhole cover, the photoelectric sensor is used for detecting whether the manhole cover body exists or not; if not, the light emitting member around the manhole cover holder is controlled to emit light to warn pedestrians; when flow spewing out of the sewer flushes the manhole cover body, the manhole cover body drives a pulling rope to tear off a seal cover sealing a warning device, and an elastic plate of the warning device bounces off and floats to the water surface so as to warn the pedestrians.

Description

technical field [0001] The invention relates to a manhole cover seat. Background technique [0002] Manhole covers are an indispensable municipal facility on urban roads. At present, manhole covers are often stolen. However, existing manhole covers do not have the functions of timely alarming and prompting passers-by and vehicles to avoid when the manhole covers are stolen, which often causes pedestrians to fall. Injuries in the well, damage to vehicles, and even death in severe cases. In addition, for well-known reasons, more inspection manhole covers are stolen at night. Due to the dim light at night and the difficulty of observation, inspection wells without manhole covers pose a greater threat to passers-by and vehicles. In the event of casualties or vehicle damage, it is often difficult for the relevant departments to deal with the issue of responsibility and compensation, which has caused a great burden to the country and society. [0003] In addition, in areas where...

AI Technical Summary

Problems solved by technology

[0002] Manhole covers are an indispensable municipal facility on urban roads. At present, manhole covers are often stolen. However, existing manhole covers do not have the functions of timely alarming and prompting passers-by and vehicles to avoid when the manhole covers are stolen, which often causes pedestrians to fall. Injuries in wells, vehicle damage, and even death in severe cases

In addition, for well-known reasons, more inspection manhole covers are stolen at night. Due to the dim light at night and difficult observation, inspection wells without manhole covers pose a greater threat to passers-by and vehicles.

In the event of casualties and vehicle damage, the relevant departments often face many difficulties in dealing with the issue of responsibility and compensation, which has caused a great burden to the country and society.

[0003] In addition, in areas where floods occur, the manhole cover is often washed away by the gushing water from the sewer. Since the manhole cover is submerged in the water at this time, it cannot be seen with the naked eye, and it is easy to cause pedestrians to fall into the manhole.

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