Mobile speed measuring device for expressway

The utility model discloses an expressway mobile speed measuring device, and relates to the technical field of expressways. Comprising a guardrail body and a shell, moving wheels are installed on the shell, a driving device used for driving the moving wheels to rotate is installed on the moving wheels, and a camera, a speed measuring device and a control device are installed on the shell; a groove is formed in the shell, a storage battery is installed in the groove, a supporting frame is installed on the shell, a bidirectional electric telescopic rod is installed on the supporting frame, and clamping plates are installed at the two ends of the bidirectional electric telescopic rod. According to the expressway mobile speed measuring device provided by the utility model, the driving device is started through the control device and the storage battery, the driving device drives the moving wheels to rotate, and the moving wheels can move along the guardrail body when rotating so as to drive the camera, the speed