What types of luban locks are they?

All kinds of Luban locks are: big and small Kongming locks, four seasons locks, sister balls, hexagonal locks, fourteen elder locks, small pineapples, Kongming chain locks, twelve square locks, square locks (square-corner Luban balls), twenty-four locks (divided into Grade A and Grade B), eighteen hook locks, three or three knots (big pineapples) and three or eight knots. A common combination is 6 followed by 9. According to different tenors, it can be transformed into many kinds. For example, if you choose some of the nine Kongming locks, you can complete the "seven-star knot" and "eight big mouths".

Brief introduction of Rubanso:

Lubansuo, also known as Kongmingsuo and Bagua Suo. According to legend, during the Spring and Autumn Period, Lu Ban, a craftsman of the State of Lu, made a toy that could be disassembled with six pieces of wood in order to test whether his son was clever or not, and asked his son to disassemble it. After a busy night, his son finally took it apart. This kind of toy was later called Luban Lock. In fact, this is just a legend. Lubansuo, also known as Kongmingsuo, Besapu, Liuzilian Boat, Mocher Pus, Nanmu, etc. , originated from the tenon-mortise structure pioneered by ancient architecture in China.

Luban lock is a traditional fixed connector of ancient civil buildings in China, and it is also an intellectual toy widely circulated in China. Also known as "not plain", "six sons are fragrant", "doing nothing" 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.