? In some areas in the north, if you accidentally step on the manhole cover, you have to hit your head three times or fart. This is because it is said that stepping on the manhole cover will be unlucky for three days, so you will hit your head or ass three times to get rid of bad luck. In some places, you will hit it five times. Because the folk customs of each place are different, the number of clicks will also change. Extended data
Chengdu promulgated the Measures for the Management of Well Covers in Chengdu, and established a joint meeting system, a well cover supervision center and process specifications. Require the manhole cover ownership unit to carry out emergency treatment within 3 hours after receiving the dispatch, otherwise, the municipal manhole cover supervision center will carry out temporary emergency treatment to eliminate potential safety hazards; If the ownership unit fails to complete the repair and replacement work within 24 hours without reason, it shall be punished by the urban management administrative law enforcement department according to law. Cities such as Wuhan are also exploring the implementation of the "first inquiry responsibility system" in the field of manhole cover disposal.
There are 50 sets of intelligent electric manhole covers in Nanjing. Once the manhole cover is tilted or displaced, or it encounters illegal unlocking, theft, underground flooding, spontaneous combustion of equipment, etc. The smart manhole cover will locate the alarm in time and the staff will go to the maintenance as soon as possible.