Draft model 01 - Water lock & Hydraulic syringe

Regarding the mechanical structure of water plus the lock structure, water locks were thought of. Analyse the internal structure of keys and locks to explore the possibility and structure of water locks. It is found that this structure will occupy a large part of the space inside the box, and it will be unsightly if it is made outside the box.

Regarding hydraulic power, there is also an interesting device experiment. Use two syringes and a soft round tube for connection. First connect one end of a syringe to the round tube, fill it with water, and then connect the other end of the round tube to another syringe. Then you will find that you can push the syringe on both sides to push the water to the other end.

So I thought of a concept that combines a water connector with water pressure, placing the organ in the box wall. The internal organs are triggered by concentrated hydraulic pressure penetrating into the box wall. But this structure still seems too complicated.