Screw Motor Actuated Vehicle Box Extension System

A screw motor actuated vehicle box extension system, comprising a slide-out box, load-bearing plate, load-bearing box, support frame, screw motor, guide rail one, guide rail two, slide block one, slide block two, slide block three, and slide block four. The slide-out box is set at the opening of the vehicle body, with corresponding load-bearing boxes positioned below the relative side walls. Two load-bearing boxes have identical internal structures, are correspondingly placed, and move synchronously. The load-bearing plate is fixed on the load-bearing box, and guide rails one and two are arranged parallelly up and down through the load-bearing plate and fixed on the load-bearing box. Slide blocks one, three connect slidingly with guide rail one, and slide blocks two, four connect slidingly with guide rail two. These slide blocks are fixed on the support frame. The screw motor, guide rails one and two, slide blocks one to four, load-bearing plate, and part of the support frame (excluding the baseplate) are integrated inside the load-bearing box. The bottom of the load-bearing box has a long slot, allowing it to slide back and forth along the lower end of the support frame.