Abstract: A control switch includes a rotary shaft rotatably mounted therein. A switching knob is mounted to the rotary shaft and a surface of the control switch. Also, a stationary shaft is arranged beside the rotary shaft. A driving control disk and a locking control disk are sequentially and rotatably fit onto the stationary shaft so that when the switching knob on the surface is actuated, the rotary shaft is rotated to selectively drive cables through the driving control disk or the locking control disk to thereby effect switching of transmission modes and the function of locking. Thus, the amount of space required for installation is reduced and the chance of malfunctioning is also reduced and further, the costs are reduced.

Abstract: A suspension system is coupled between a front wheel and a vehicle frame of an all-terrain vehicle, including an inverted A-shaped connection rack and two shock absorbers. The connection rack has an end coupled to the vehicle frame and an opposite end coupled to the wheel. The shock absorbers are coupled to the connection rack in such a way to be set respectively frontward and rearward with respect to each other. An opposite end of each shock absorber is coupled to the vehicle frame. Each shock absorber includes a spring composed of upper, intermediate, and lower sections each having helical turns arranged in such a way that the turns of the upper and lower sections of the spring are sparsely arranged, while the turns of the intermediate section is densely arranged.

Abstract: The fuel tank has an indentation inside which its inlet is positioned. An elastic fuel pipe is provided so that a bottom end of the fuel pipe is fixedly attached to the inlet of the fuel tank. Due to its elasticity, the fuel pipe could easily have its top end aligned with and attached to a fuel inlet of the motor vehicle. A cap is then plugged into the fuel pipe's top end to seal the fuel tank.

Abstract: A control switch includes a rotary shaft rotatably mounted therein. A switching knob is mounted to the rotary shaft and a surface of the control switch. Also, a stationary shaft is arranged beside the rotary shaft. A driving control disk and a locking control disk are sequentially and rotatably fit onto the stationary shaft so that when the switching knob on the surface is actuated, the rotary shaft is rotated to selectively drive cables through the driving control disk or the locking control disk to thereby effect switching of transmission modes and the function of locking. Thus, the amount of space required for installation is reduced and the chance of malfunctioning is also reduced and further, the costs are reduced.

Abstract: An air intake box is integrally molded and includes an inlet section that has a tail end extending and forming a bent and upward inclined guide section and a connection section connected to the guide section. External air enters the inlet section through an air-inlet port and is then guided upward by the guide section and further guided toward an engine through a sleeve fit into the connection section to make the air intake more smooth and increase the amount of air intake for realizing cooling of a belt of a transmission system and preventing water from directly entering the engine transmission system so as to protect the belt of the transmission system from failure due to slippage and ensure that the engine power can be effectively transmitted through the transmission system.

Abstract: A differential gear train for a wheeled vehicle includes a first housing, a first cover, a second housing, a second cover, a plurality of pinions, a first sun gear, and a second sun gear. Thus, the first sun gear drives the second sun gear by provision of the pinions at different positions so that the second propeller shaft in the second sun gear is directly driven by the first propeller shaft in the first sun gear by transmission of the first sun gear, the second sun gear and the pinions to perform a direct transmission exactly without incurring deflection, thereby enhancing the precision of transmission.

Abstract: A differential gear train for a wheeled vehicle includes a first housing, a first cover, a second housing, a second cover, a plurality of pinions, a first sun gear, and a second sun gear. Thus, the first sun gear drives the second sun gear by provision of the pinions at different positions so that the second propeller shaft in the second sun gear is directly driven by the first propeller shaft in the first sun gear by transmission of the first sun gear, the second sun gear and the pinions to perform a direct transmission exactly without incurring deflection, thereby enhancing the precision of transmission.