The toy that the astronauts brought into the sky turned out to be a Luban lock
What is the charm of Luban Lock? It seems simple, but it embodies extraordinary wisdom. Luban lock is a concentrated expression of the mortise and tenon structure. It is three-dimensionally inserted, the internal mortise and tenon are interlocked, the appearance is tightly fitted, and it is easy to disassemble and difficult to assemble, which is very clever.
Magical mortise and tenon structure
The mortise and tenon structure used by Luban Lock is a widely used connection method in ancient Chinese buildings and furniture. The convex part is called "tenon", and the concave part is called "mao". The joint of mortise and tenon can be tightly fastened without a single iron nail. Compared with direct nailing, the mortise and tenon combination is stronger and can effectively resist the distortion and deformation of the wood.
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