公开(公告)号：US20240351374A1

公开(公告)日：2024-10-24

申请号：US18639574

申请日：2024-04-18

申请人： Dongguan Jingtong Machinery Technology Co., Ltd. ,  Xi'an Xiongfeng Energy Saving Technology Co., Ltd.

发明人： Quanxi Liu ,  Xiaoying Wang ,  Yu Liu ,  Nianguo Wang ,  Jianyi Liu ,  Chan Li ,  Qing Liu

IPC分类号： B60B27/04 ,  B60B27/02 ,  B62M9/02

CPC分类号： B60B27/047 ,  B60B27/023 ,  B62M9/02 ,  B60B2200/47 ,  B60B2900/113 ,  B60B2900/212 ,  B60B2900/5118 ,  B60B2900/541 ,  B60B2900/561

摘要： A bicycle rear-wheel drive mechanism comprises a fixed shaft, a hollow toothed disc shaft, a wheel shaft, a sprocket shaft, an end cap and pin posts, the hollow toothed disc shaft is composed of a shaft cylinder and a toothed disc arranged at one end of the shaft cylinder, the toothed disc is provided with an array of semi-circular slots located at the edge of the disc body; in this design, the structure is stronger, the torque transmitted is greater, and the driving ability is stronger; replacing the original ball bearings used in bicycles with standardized tapered roller bearings allows the mechanism to be adjusted to the optimal axial and radial positions after installation, while also improving sealing performance and durability.

公开(公告)号：US20240191744A1

公开(公告)日：2024-06-13

申请号：US18525722

申请日：2023-11-30

申请人： Dongguan Jingtong Machinery Technology Co., Ltd. ,  Xi'an Xiongfeng Energy Saving Technology Co., Ltd.

发明人： Qing Liu ,  Yu Liu ,  Quanxi Liu ,  Xuyang Liu ,  Ting Gao ,  Ming Liu ,  Junfeng Liu ,  Meng Fan ,  Xiaohong Wang ,  Xiaoying Wang ,  Peng Wang ,  Wei Wang ,  Jie Fan ,  Jianyi Liu

IPC分类号： F16B39/12

CPC分类号： F16B39/12

摘要： The invention proposes a kind of bending bolt type anti-loosening nut, which relates to the technical field of mechanical fastening. It comprises an upper nut and a lower nut, the upper nut and the lower nut are stacked on the outside of the bolt and used to tightly connect the bolt to the connecting piece, the lower nut is arranged close to the connecting piece, the upper nut is arranged on the outer end surface of the lower nut; the adjacent end between the upper nut and lower nut is provided with an inclined surface, the inclined surface is inclined towards the interior of the upper nut, so that an inclined plane angle with deformation space between the upper nut and lower nut is formed; the invention achieves the effect of preventing nut loosening, is low in price, easy to manufacture, and suitable for small or miniature anti-loosening nuts.