The original poster’s idea is a good one, and I guess some manufacturers are also using it.
I think this point mentioned by the poster can be improved a little
2) The truck uses a slide-type storage rack that is twisted on both sides. Each rack is slightly wider than the barrel diameter. Densely covered with small rollers to increase sliding performance. It is fixed towards the front of the car, and the rear part of the car can be raised or lowered 10-15° with a jack or the like. It will automatically rise when loading the car, automatically lower when unloading, and can be locked when in place.
The slide-type storage rack can be modified with a conveyor belt similar to a gravel machine.
Using jacks and other things to lift and lower the work is inefficient. Just use a dump truck instead, or you can install special terrain at the loading and unloading area (digging two pitslt; not advisablegt;, stacking two pits) Each cup can be used)
This plan is only used for high-density transportation systems. The transportation volume is not large when delivered to general consumption points, so forget it