What kinds of Luban locks are there?

1, big and small kongmingsuo; 2, four seasons lock; 3. Kongming chain lock; 4. Twelve-square lock; 5. Square lock (square corner luban ball); 6. Twenty-four locks (divided into Grade A and Grade B); 7. Eighteen-hook lock; 8. Sister ball; 9. Hexagon lock; 10, 14 may be locked; 1 1, small pineapple; 12, Sansanjie (big pineapple); 13, closed on March 8th.

Kongmingsuo is a traditional fixed connector of ancient civil buildings in China, and it is also an intellectual toy widely circulated in China. There are other names, such as "Don't be dull", "Liuzi Lianxiang", "Don't be helpless" and "Being difficult". Without nails and ropes, it is supported entirely by the connection of its own structure, just like a piece of paper can stand up when folded in half, showing a seemingly simple but extraordinary wisdom.

Composition structure:

Luban Lock originated from the tenon-mortise structure of ancient buildings in China. The concave-convex part (tenon-mortise structure) in this three-dimensional splicing instrument is very clever. Originally a wooden structure, it looks like a perfect cross cube. There are many Kongmingsuo toys with different shapes and internal structures, which are generally easy to disassemble and difficult to install. Observe carefully, think carefully and analyze its internal structure when assembling. It is beneficial to develop the brain and flexible fingers, and it is a good educational toy.

There are various types of Luban locks. Among them, the most common six (the first generation, the second generation or Grade A and Grade B) and nine Luban locks (the third generation or Grade C) are the most famous. Among them, six Luban locks have different structures according to different regions and design concepts. Six Luban locks are mainly divided into two categories according to the shape of tenons.

Class a and class b, of course, the tenon shape of the six-disc lock is far more than these two. Nine Luban locks, some of which can be selected to complete "Liuhe tenon", "Seven-star knot", "Eight-point buckle" and "Luban lock". It is not easy to realize the four-meshing structure by satisfying different numbers of nine tenons at the same time.