Patent ID: 8339774

Claim:
A connecting mechanism, comprising: a first connecting member comprising a first cylinder, a first piston movably accommodated within the first cylinder, and a first connecting rod connected to one side of the first piston, the first connecting rod extending out of the first cylinder and capable of moving with the first piston, the first piston dividing the first cylinder into a first space on the one side of the first piston and a second space on the opposite side of the first piston; a second connecting member comprising a second cylinder, a second piston movably accommodated within the second cylinder, and a second connecting rod connected to one side the second piston, the second connecting rod extending out of the second cylinder and capable of moving with the second piston, the second piston dividing the second cylinder into a third space on the one side of the second piston and a fourth space on the opposite side of the second piston; a first conduit communicating the first space with the third space; and a second conduit communicating the second space with the fourth space.