Pull type mobile power supply charging vehicle

The utility model relates to the field of electric traffic, discloses a pull-type mobile power supply charging vehicle, and solves the problem that the anti-falling and limiting effects of a traction cap of an existing pull-type mobile power supply charging vehicle are poor. Through the screw rods, the movable blocks, the connecting plates and the clamping plates, in order to prevent the problem that the traction cap and the towing head are loosened due to bumpy roads, the bidirectional motor in the mounting shell at the bottom end of the frame plate is started through an external button, and the bidirectional motor drives the screw rods at the two ends, the first movable block and the second movable block to move in the opposite directions; therefore, the first movable block and the second movable block drive the first connecting plate and the second connecting plate at one end to move in the channel, the first connecting plate and the second connecting plate drive the first arc-shaped clamping plate and the