How to spell square lock and luban lock?

The square lock is spelled as follows:

1. Take out four pieces of wood and stand opposite each other. Take out two pieces of wood and put them on the gaps at the bottom of the four pieces of wood.

2. Put two battens on the left and right, put the beads in, put two battens on the 1 batten, insert them on it, and lift the lock with your right hand.

3. Pull down the 1 slat at the lower left to expose a gap. Put the last piece of wood, that is, the one with the gap, and adjust the position.

4. Push the two protruding wooden strips back in turn, and the Luban lock will be assembled.

Brief introduction of luban institute

Luban Lock, also known as Bagua Lock and Kongming Lock, is a traditional fixed connector of ancient civil buildings in China. It was once widely used in China's intellectual toys, and there are other names, such as "Don't be dull", "Six sons in one", "Don't be helpless" and "It's difficult to be a human being".

Luban lock, without nails and ropes, is completely supported by the connection of its own structure, just like a piece of paper folded in half can stand up, showing a seemingly simple but extraordinary wisdom.

Luban Lock is said to be a toy invented by Zhu Gekongming in the Three Kingdoms period according to the principle of Eight Diagrams Metaphysics, which was once widely circulated among the people. People pay more and more attention to it, which is conducive to relaxing body and mind, developing brain and flexible fingers. It is a leisure toy suitable for all ages. Kongmingsuo seems simple, but the mystery inside is endless, and it is difficult to complete the splicing.