Background Technology: Bicycles have the characteristics of both long-distance travel and environmental protection. Today, when we pay attention to the quality of life, cycling can not only exercise, but also protect the environment. Therefore, it has become the choice of many people. Bicycles are usually composed of frame, fork, handle and bowl group. The bowl group is an important structure which connects the front fork with the handle vertical pipe. It is the key to affect the bicycle handling and balance.

When cyclists ride, they need both hands to control the direction of the ride. When the direction of the vehicle is offset, the arm needs to adjust the direction of the head car in time to maintain balance. A long time of keeping the arm in such a tense state will lead to fatigue. When the bicycle is parked for a long time, the bicycle may fall to the ground due to lack of balance. At present, the existing structure of the market is simply to connect the front fork with the handle vertical pipe by using the spring. When turning the handlebar, the spring tension force plays a role of retraction. When this structure is used for a long time, the spring elastic fatigue will make the spring elastic force insufficient, the surface rusty or loosening phenomenon. This structure is an external component, which affects the overall aesthetics of the product used, and can not enhance itself. Balance in cycling or parking.