公开(公告)号：US20230415843A1

公开(公告)日：2023-12-28

申请号：US18100368

申请日：2023-01-23

Applicant: ROYALBABY CYCLE BEIJING CO., LTD.

Inventor： Aicheng HUA ,  Yixiong WANG ,  Zhiwei CHAO ,  Lixin TONG

IPC: B62M3/08

CPC classification number: B62M3/08

Abstract: The present disclosure discloses a crank quick-connection structure. The crank quick-connection structure is used for connecting a crank with a main shaft, and includes an adapter and a connecting assembly. The adapter is connected to the main shaft, one end of the crank is provided with a cooperating cavity extending in a thickness direction thereof, and the adapter penetrates the cooperating cavity from one end of the cooperating cavity. The connecting assembly is connected to the adapter, and the connecting assembly has a locking position and a releasing position. In the locking position, the crank cooperates with the connecting assembly so that the cooperating cavity and the adapter are locked and connected; and in the releasing position, the crank is disengaged from the connecting assembly so that the crank can be disengaged from the adapter in an axial direction of the adapter.

公开(公告)号：US20230009204A1

公开(公告)日：2023-01-12

申请号：US17862845

申请日：2022-07-12

Applicant: ROYALBABY CYCLE BEIJING CO., LTD.

Inventor： Lixin TONG ,  Mengjing CHEN

IPC: F03G1/02 ,  F03G1/06 ,  F03G3/08

Abstract: The present application relates to the technical field of a wheel, and particularly to a stored energy transmission mechanism and stored energy-driven wheel. In particular, a stored energy transmission mechanism is integrated with a rotating component, which is used to drive the rotating component. The stored energy transmission mechanism includes a center shaft, an elastic component, a transmission cover, a flywheel, and a flywheel seat. The elastic component is sleeved outside the center shaft and positioned in the transmission cover, with one end being fixedly connected with the center shaft and the other end being fixedly connected with the transmission. When the transmission cover is rotated and fitted with the center shaft, it can tighten the elastic component to store energy.