Abstract: A combinational cooling pad structure with flash drive storage comprises a cooling pad and a flash drive. The cooling pad comprises at least three combinational pads with structural surfaces. At least two connecting portions are correspondingly disposed between the combinational pads. Limiting structures are correspondingly disposed on outer sides of the outer combinational pads. The combinational pads are connected by the connecting portions to form a structure which can be unfolded flatly; and are folded closely together to form a structural body surrounded by the structural surfaces; and are combined securely by the corresponding limiting structures. An inner hole for inserting the flash drive is defined and formed by inner surfaces of the surrounding combinational pads. A coupling portion is protrudingly disposed at an end of the flash drive, and an interface connector is disposed on the coupling portion. The coupling portion is then inserted into the inner hole.

Abstract: A foldable trolley comprises a supporting frame having two lateral rods with a roller disposed at each of two ends of the lateral rods, opposite inner sides of the two horizontal lateral rods being coupled interlockingly with a cross connecting rod for compressing and expanding; a supporting plate placed on the expanded supporting frame comprising a plurality of plates connected with ligaments for forming a multi-section foldable structure; and a handle set comprising two vertical supporting rods with lower ends pivotally connected to the two lateral rods of the supporting frame, and upper ends sleevely connected to a dismountable horizontal rod. Thereby, after the horizontal rod and the supporting plate of the combinational structure are dismounted, the cross connecting rod between the two lateral rods of the supporting frame can be collapsed for forming a compact structure with a decreased volume.

Abstract: A combinational cooling pad structure with flash drive storage comprises a cooling pad and a flash drive. The cooling pad comprises at least three combinational pads with structural surfaces. At least two connecting portions are correspondingly disposed between the combinational pads. Limiting structures are correspondingly disposed on outer sides of the outer combinational pads. The combinational pads are connected by the connecting portions to form a structure which can be unfolded flatly; and are folded closely together to form a structural body surrounded by the structural surfaces; and are combined securely by the corresponding limiting structures. An inner hole for inserting the flash drive is defined and formed by inner surfaces of the surrounding combinational pads. A coupling portion is protrudingly disposed at an end of the flash drive, and an interface connector is disposed on the coupling portion. The coupling portion is then inserted into the inner hole.