Collapsible backpack pet trailer

A trailer apparatus comprising:

• a first half form adapted as a trailer bed having a floor and a solid frame perimeter defining an internal volume, the first half form open on one side;
• a second half form having a floor and a solid frame perimeter defining an internal volume the second half form open on one side;
• a frame joint having a first pivot bar and a second pivot bar, the pivot bars held spaced apart and fixed in parallel relationship by framing elements, the first half form mounted to pivot at one end over the first pivot bar, the second half form mounted to pivot at a like end over the second pivot bar on the frame joint, producing a clam shell arrangement between the first and second half forms;
• a first pair of locking mechanisms for locking the half forms in a closed and parallel position with the open sides of the half forms facing each other, doubling the internal volume defined within each half form for use as a secure storage apparatus for storing items within at least the internal volume of both half forms in closed position;
• a telescopic support frame having a base tubular portion and a telescopic portion thereof positioned within the tubular base portion, the telescopic portion thereof culminating at a pullout handle, the telescopic support frame positioned between the first and second half forms and connected to the first half form solid frame at one side and the second half form solid frame at the other side by a pair of sliding frame lock mechanisms;
• a pair of trailer wheels bracketed and mounted to pivot over a pair of wheel rods, the wheel rods mounted at one end to the frame joint on each side of the frame joint, the wheel rods spaced apart and held parallel at each side of the solid frame perimeter of the first half form, the wheels enabled to collapse into recesses in the floor of the first half form;
• and
• a telescopic tow bar having a base tubular member and a telescopic tubular member set within the base tubular member, the tow bar mounted to pivot out from a recessed position in the floor of the second half form and be telescoped out further in length to connect the trailer apparatus to a vehicle.