一种龙骨层间连接件、限位机构及双层龙骨结构
By using interlayer connectors in a double-layer keel structure and employing a snap-fit design with self-locking nails and nail sleeves, the problem of loosening and misalignment in double-layer keel structures for sports venue floors is solved, thereby improving the stability and service life of the floor. It is suitable for various types of wood and simplifies construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 山东省体育训练中心
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-17
AI Technical Summary
The existing double-layer keel structure is prone to instability in sports venue floors due to loosening and misalignment. This is especially true in badminton, where frequent sudden stops and lateral movements can cause the joints to loosen and become damaged. Existing fixing methods, such as pneumatic nails and structural adhesives, are either highly polluting or destructive and cannot effectively meet the needs of different types of wood.
The system employs interlayer keel connectors, including a structure of horizontal web plates, vertical wing plates, and corner plates. Combined with self-locking nails and nail sleeves, the system achieves the limiting and reinforcement of the two-layer keel through the snap-fit of the self-locking nails and nail sleeves and the wedge-shaped fin design, thereby enhancing the connection stability.
It effectively disperses lateral stress, prevents loosening and misalignment at joints, improves the stability and service life of the floor, reduces damage to wood, is suitable for various types of wood, and simplifies the construction process.
Smart Images

Figure CN224514652U_ABST