Abstract: The present invention discloses combination tables and table-on-wheel structures. Each combination table includes two identical table-on-wheel structures connected side by side with two connection rods and stands firmly on grounds, roads or on object surfaces whether rough or smooth, flat or inclined. Each table-on-wheel structure includes a desktop frame; a stand frame; and two tail rods or connection rods connected together. With the implementation of the present invention, the combination tables or the table-on-wheel structures have the special benefits of being easy to set up or operate; and being able to stand firmly on the ground, no matter it is a level ground, a rough ground or a sloping ground. Each table-on-wheel structure sets firmly upon and applies to all kinds of wheels, whether large or small, and can thus be applied to all kinds of cars.

Abstract: The present invention discloses multipurpose roof panel structures formed by strong material. One roof panel includes a base panel and two movable barrier rods fixed on the base panel, said movable barrier rods are fixed on the two opposite sides of the base panel and can be inclined raised above or set flat adjacent to the base panel. The other roof panel includes a base panel, two movable barrier rods and plural fixing planks, wherein each movable barrier rod, being fixed on the two opposite sides of the base panel, is being inclined raised above the base panel and secured by at least a fixing plank, or being set flat resting adjacent to the base panel and secured. With the implementation of the present invention, the movable barrier rods are either raised to securely contain and protect objects or luggage, or set flat to have more space to contain and protect larger or longer objects such as ski board or surfboard, and thus make the roof panel structures multipurpose roof panel structures.

Abstract: The present invention discloses a mat connector structure for cars, used to connect two overlapping mats to a connection pole on a car floor. The mat connector structure includes a buckle block, a first connecting unit, at least one second connecting unit, and at least one third connecting unit in relative to the second connecting unit. With the implementation of the present invention, the mat connector structure, being convenient to install or disassemble, is easy to setup or remove the overlapping mats rapidly; adaptive to a variety of cars without being limited by the size or shape of the connection poles on cars; and with the first connecting unit and the second connecting unit being formed in different positions on the buckle block, debris, mud, water drops or other liquid are all contained on the mats without being leaking or dropping out to the car floor.

Abstract: The present invention discloses a multifunction ladder structure, it includes a first ladder frame; a second ladder frame; and two combining assemblies that combine the second ladder frame with the first ladder frame, altogether with an optional adjustable band and plural optional foot rods each slides or fixes individually in the first or the second ladder frame.

Abstract: The present invention discloses a tire table structure used to removably set firmly on a tire of a vehicle. The tire table structure includes a desktop unit for placing at least one object; two fixing rods each being connected to a first side of the desktop unit by a first joint unit; an U shaped rod connected at each end by a second joint unit to one fixing rod wherein each of the two ends of the U shaped rod being respectively connected to a different fixing rod; and at least one foot rod connected to a second side opposite to the first side of the desktop unit by a third joint unit. With the implementation of the present invention, the tire table structure has the special benefit of being easy to set up or operate; being able to firmly set on a tire of a vehicle; applying to all vehicle types; and more importantly, being able to fold the fixing rods, the U shaped rod and the foot rod separately at the first joint unit, the second joint unit or the third joint unit for convenient storage or transportations.

Abstract: The present invention discloses multipurpose roof panel structures formed by strong material. One roof panel includes a base panel and two movable barrier rods fixed on the base panel, said movable barrier rods are fixed on the two opposite sides of the base panel and can be inclined raised above or set flat adjacent to the base panel. The other roof panel includes a base panel, two movable barrier rods and plural fixing planks, wherein each movable barrier rod, being fixed on the two opposite sides of the base panel, is being inclined raised above the base panel and secured by at least a fixing plank, or being set flat resting adjacent to the base panel and secured. With the implementation of the present invention, the movable barrier rods are either raised to securely contain and protect objects or luggage, or set flat to have more space to contain and protect larger or longer objects such as ski board or surfboard, and thus make the roof panel structures multipurpose roof panel structures.

Abstract: The present invention discloses a roof rack fixing structure, used to fix a roof rack on a car top. The roof rack fixing structure includes a frame case with an opening; a first fastener; a second fastener; and a knob rod. With the implementation of the present invention, the roof rack fixing structure is firmly combined with the roof rack; more than one combining positions provided by the second fastener to be adaptive to various cars; and the position of the first fastener complies with the width of the roof rack rods on the car with no risk of loosening from it; moreover, with further implementation of an anti-theft lock, the roof rack fixing structure can be locked and secured and the risk of driving due to movement or loosening of the roof rack fixing structure is eliminated.

Abstract: The present invention discloses car mat structures used to set on the floor compartment area in a car to contain water drops or debris fallen or brought into the car. One car mat structure includes a bottom pad with plural sidelines; and plural dams, each being raised from one said sideline, wherein two opposite members of the dams are dual slop walls each being built with two inclined surfaces with different inclined angles. Another car mat structure includes a bottom pad; plural dams raised from the sidelines of the bottom pad; and plural triangle shutters formed to cover bottom corners each formed by two adjacent dams and the bottom pad. A third car mat structure includes a bottom pad; plural dams raised from the sidelines of the bottom pad, wherein two opposite members of the dams each being built with two inclined surfaces with different inclined angles; and plural triangle shutters.

Abstract: The present invention discloses a roof panel structure formed by strong material and includes a bottom panel and two movable barrier rods fixed on the bottom panel. The two movable barrier rods are fixed on the two opposite sides of the bottom panel and can be inclined risen above or set flat on the bottom panel. With the implementation of the present invention, the movable barrier rods of the roof panel structure are raised to securely contain and protect small objects or luggage; while when long objects, such as ski boards or surfboards are to be loaded on the roof panel structure, at least one of the movable barrier rods can be easily set flat to provide more space in roof panel structure. Thus making the roof panel structure a multiple purpose roof panel structure.

Abstract: The present invention discloses a rolling molding roof box structure. The rolling molding roof box includes a roof box formed by rolling molding and at least one roof box door. With the implementation of the present invention, the rolling molding roof box is firmly constructed and waterproof without combining portion; no fastening parts required with budget saving advantage; light weight for easy operating even by a single person; and capable of preventing separation by wind when driving to ensure the safety of driving of a vehicle with a roof box on car top.