Foldable rotating arm structure and device of bicycle

Abstract

The foldable rotating arm structure comprises a rotating wheel and a rotating arm, and is characterized in that the rotating wheel is coaxial with a transverse pipe or surrounds the transverse pipe; the rotating arm is in steering connection with the rotating wheel or the support base so that the rotating arm can be attached to the transverse pipe when folded, and occupied upward space of the transverse pipe is reduced. The invention discloses a flywheel for balancing devices and interesting devices of bicycles and boosting bicycles. Through the arrangement mode that single batteries or multi-stage batteries are arranged in a radial single-layer mode and axially stacked in a multi-stage mode in the rotating arm, the angular momentum or the balance moment is increased during unfolding rotation, the rotating arm is parallel to the transverse pipe during folding, the mass center radius is small, and the moment is small, so that the rotating motor can be quickly started conveniently.

Description

technical field [0001] A foldable rotating arm structure and device of a bicycle are used in the fields of bicycles and power-assisted bicycles. Background technique [0002] Unmanned bicycles, self-driving bicycles, and two-wheeled vehicles need a gyro balance device to maintain in a stationary state, but the space for placing the gyro device on the light bicycle frame is very limited. , it is inconvenient for normal riding and difficult to be practical. At present, CN111874141A discloses an electric bicycle balancing device and an electric bicycle. The battery frame surrounding the driving motor has a built-in battery, and the weight of the battery is used as the momentum wheel, which reduces the extra flywheel weight and has a large capacity, but the frame structure cannot be folded; The axis of the battery is parallel to the drive motor, and the radial or multi-layered arrangement of the batteries cannot effectively reduce the radial or axial space occupied when folded....

AI Technical Summary

Problems solved by technology

[0002] Unmanned bicycles, self-driving bicycles, and two-wheeled vehicles need gyro balance devices to maintain them in a static state, but the space for placing gyro devices on light bicycle frames is very limited. Patent No. CN201753096U mentions a flywheel placed on a horizontal tube, which is large in size , it is not convenient for normal riding, and it is difficult to be practical

Currently CN111874141A discloses a balance device for an electric bicycle and an electric bicycle. The battery frame surrounding the driving motor has a built-in battery, and the weight of the battery is used as a momentum wheel, which reduces the extra flywheel counterweight and has a large capacity, but its frame structure cannot be folded; The axis of the battery is parallel to the drive motor, and the radial or axial space occupied by the battery cannot be effectively reduced when the battery is folded in a radially multi-layer stacked arrangement

The arrangement shown results in a large increase in mass, but a small increase in radius. The increase in angular momentum mainly depends on the increase in mass, and the required starting torque is constant. It is not portable

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