A rotary flow control valve that requires no linear motion is disclosed. The rotary flow control valve comprises a drive mechanism and a rotary flow control valve coupled with the drive mechanism, wherein the rotary flow control valve is rotated by the drive mechanism without requiring conversion of a linear motion to a rotational motion.

A wire controller of a dropper seatpost includes a pneumatic elevation rod, an outer tube, a wire controller assembly and a C-ring. The pneumatic elevation rod includes an inner tube, an actuation rod and a collar. The outer tube has a first end with a collar fixer and a second end with an annular recess. The collar is fastened to the collar fixer. The wire controller assembly includes a blocking body with a blocking mount and a wiring base with a wire pulling lever. The blocking body is received in the second end. The actuation rod is blocked by the blocking mount. The C-ring is compressively received in the annular recess and abuts against the blocking body to make the wire controller assembly rotatably fixed and received in the second end of the outer tube.

A wire controller of a dropper seatpost includes a pneumatic elevation rod, an outer tube, a wire controller assembly and a C-ring. The pneumatic elevation rod includes an inner tube, an actuation rod and a collar. The outer tube has a first end with a collar fixer and a second end with an annular recess. The collar is fastened to the collar fixer. The wire controller assembly includes a blocking body with a blocking mount and a wiring base with a wire pulling lever. The blocking body is received in the second end. The actuation rod is blocked by the blocking mount. The C-ring is compressively received in the annular recess and abuts against the blocking body to make the wire controller assembly rotatably fixed and received in the second end of the outer tube.

An auxiliary wheel mechanism 151 of a two-wheeled vehicle disclosed herein includes an auxiliary wheel 1, a saddle support member 7, a transmission member 9, and an auxiliary wheel urging member 23. The auxiliary wheel 1 is supported by a vehicle body 11 to be located on a side of a rear wheel 13 and to be movable between a retracted position retracted from a road surface 17 and an operative position where the vehicle body 11 is supported against the road surface 17 so as not to tilt. The saddle support member 7 is provided on the vehicle body 11 and supports a saddle 27 such that the saddle 27 is movable backward and forward. The transmission member 9 transmits a backward and forward movement of the saddle 27 to the auxiliary wheel 1 such that the auxiliary wheel 1 is located at the retracted position when the saddle 27 is located at a front position, and the auxiliary wheel 1 is located at the operative position when the saddle 27 is located at a rear position. The auxiliary wheel urging member 23 urges the auxiliary wheel 1 toward the retracted position. Accordingly, it is possible to achieve the auxiliary wheel mechanism that is for the two-wheeled vehicle and enables a rider to move an auxiliary wheel between a retracted position and an operative position without a manual operation of the rider.

This invention is an electric unicycle. It is an improvement of a unicycle and a self-balancing electric unicycle. It comprises one wheel (1B), brushless DC motor (1C), operating-pedal (1D), seat (2A), pneumatic springs (2B) for shock absorb, mainboard (1F), lithium-ion battery pack (1G), telescopic handle (1I), emergency brake footboard (1J), casing (1H). The emergency brake footboard (1J) can be easily mounted and unmounted and folded. While in using, the user generally rides on the seat, swings their foot, to adjust the depression angle of the operating-pedal (1D), to control the wheel rotation, rather than by an electric gyro. Thus, this invention is easy to operate, easy to learn, easy to use, flexible, portable, zero emission, great trafficability. It will become the main short-distance means of transportation for cities and villages, and even can be used in poor road conditions, such as field exploration and forest patrol.

This invention is an electric unicycle. It is an improvement of a unicycle and a self-balancing electric unicycle. It comprises one wheel (1B), brushless DC motor (1C), operating-pedal (1D), seat (2A), pneumatic springs (2B) for shock absorb, mainboard (1F), lithium-ion battery pack (1G), telescopic handle (1I), emergency brake footboard (1J), casing (1H). The emergency brake footboard (1J) can be easily mounted and unmounted and folded. While in using, the user generally rides on the seat, swings their foot, to adjust the depression angle of the operating-pedal (1D), to control the wheel rotation, rather than by an electric gyro. Thus, this invention is easy to operate, easy to learn, easy to use, flexible, portable, zero emission, great trafficability. It will become the main short-distance means of transportation for cities and villages, and even can be used in poor road conditions, such as field exploration and forest patrol.

An electric transformable scooter that can transform between a stand-on configuration and a ride-on configuration. The scooter has a fixed frame member at the front to which the front wheel and handlebar are mounted, and movable frame member that extends between the rear wheel and the fixed frame member. The front end of the movable frame member slides or otherwise adjusts to either a lower position or an upper position on the fixed frame member. When the movable frame member is at the lower position and locked thereat, it is generally horizontal, and its top surface defines a stand-on floorboard for stand-on operation. When the movable frame member is slid to its upper position and locked thereat, it is inclined from front to rear, and portion rotates away and locks thereat to become a seat for ride-on operation.

An electric transformable scooter that can transform between a stand-on configuration and a ride-on configuration. The scooter has a fixed frame member at the front to which the front wheel and handlebar are mounted, and movable frame member that extends between the rear wheel and the fixed frame member. The front end of the movable frame member slides or otherwise adjusts to either a lower position or an upper position on the fixed frame member. When the movable frame member is at the lower position and locked thereat, it is generally horizontal, and its top surface defines a stand-on floorboard for stand-on operation. When the movable frame member is slid to its upper position and locked thereat, it is inclined from front to rear, and portion rotates away and locks thereat to become a seat for ride-on operation.

A rider's seat for a two-wheeled vehicle, in particular a scooter, includes a seating body and a bracket connecting the seating body to a body of the two-wheeled vehicle. The bracket is displaceable relative to the body of the two-wheeled vehicle along a longitudinal direction of the two-wheeled vehicle. The seating body is displaceable relative to the bracket at least along a vertical direction of the two-wheeled vehicle. The seating body is partially received within a guide of the bracket such that the guide of the bracket directs displacement of the seating body at least along the vertical direction of the two-wheeled vehicle. The guide of the bracket includes a curvilinear profile.

A rider's seat for a two-wheeled vehicle, in particular a scooter, includes a seating body and a bracket connecting the seating body to a body of the two-wheeled vehicle. The bracket is displaceable relative to the body of the two-wheeled vehicle along a longitudinal direction of the two-wheeled vehicle. The seating body is displaceable relative to the bracket at least along a vertical direction of the two-wheeled vehicle. The seating body is partially received within a guide of the bracket such that the guide of the bracket directs displacement of the seating body at least along the vertical direction of the two-wheeled vehicle. The guide of the bracket includes a curvilinear profile.