Abstract: In response to the situation where the power well cover located in the traffic lane is prone to damage and loss after being frequently crushed by heavy vehicles, this article has completed a temporary replacement device for the power well cover by designing a temporary replacement device. It can ensure that when the original power well cover is damaged, it temporarily acts as a well cover. Cover the wellhead and quickly restore road traffic. At the same time, the temporary device is easy to carry, highly operable, and recyclable. No significant preparation costs need to be invested. It has high economic efficiency and good promotion and application value.