The present creation provides an external revolving-car seat and a controlling structure of pedal.

A slide track structure of truck boxes includes a slider track set, a horizontally acting unit and a power unit. The slider track set is provided on a truck bottom plate and the horizontally acting unit is further engaged with the slider track set so as to lift the slider track set. The power unit connects with the horizontally acting unit so that the power unit drives the horizontally acting unit...

A car power providing device includes a battery set and a master control module is disclosed. The battery set is utilized to provide a DC voltage and a status signal. The master control module electrically connects to the battery set and arranges the power to the car according to the status signal provided by the battery set. The battery set comprises a battery package, a monitor module, and a com...