Patent ID: 8028877

Claim:
A connection device comprising: a back board adapted to be fixed to a back of a bag; a transverse bar connected to an upper portion of the back board and two stops connected on two ends of the transverse bar, two flanges extending from a top and a lower side of the transverse bar; two hook units connected to the transverse bar and each comprising a guide portion, a hook portion, a torsion spring and a pin, the guide portion including two first grooves defined in a first side thereof and the two first grooves located at an upper position and a lower position, the flanges engaged with the first grooves, and a lower part connected to a lower portion of the back board and a second groove defined in the lower part, a plurality of positioning notches defined in a first inside of the second groove and a T-shaped slot defined in a second inside of the second groove, a sliding member slidably engaged with the second groove and having a recess defined therein, an I-shaped member having a first end pivotably engaged with the recess and a second end of the I-shaped member being pivotable about the first end of the I-shaped member.