Patent attributes
A containing module includes a connection casing, a tubular member, and first and second connection members. A tubular structure extends inwardly from a first end portion of the connection casing and has first and second guide portions. The first guide portion extends inwardly from the tubular structure. The second guide portion extends from the first guide portion. The first and second connection members are pivoted to a second end portion of the connection casing. A protruding point protrudes from the tubular member corresponding to the first guide portion. The protruding point is movable along the first guide portion and the second guide portion.