Interactive drawer-fastening mechanism

An interactive drawer-fastening mechanism, comprising a driving shaft component fixed to a respective drawer in a cabinet and a fastening assembly fixed to the cabinet and perpendicular to a drawing direction of the drawer;

• the driving shaft component including a seat and a driving arm rotatably connected to each other, the driving arm having one end thereof provided with a driving shaft that is rotatable with respect to the seat and is perpendicular to a drawing direction of the drawers;
• the fastening assembly including a fastening base, an upper limit block, a lower limit block, and a plurality of sliding block components, the upper limit block and the lower limit block being fixed to the fastening base's top and bottom, respectively, the plurality of sliding block components being closely fitted onto the fastening base from top to bottom and being slid vertically with respect to the fastening base, each of the plurality of sliding block components including a sliding block, a retaining shaft and a torsion spring, the retaining shaft including an arc plate as well as an immovable shaft and a movable shaft that are perpendicular to two ends of the arc plate at an identical side, wherein the retaining shaft has the immovable shaft rotatably received in a round hole of the sliding block so as to form a center of rotation, and has the movable shaft rotatable against the center of rotation, while the torsion spring is fitted between the immovable shaft and the sliding block;
• when all the drawers are closed, the driving shaft of the driving shaft component being located between the retaining shaft of one said sliding block component and the sliding block of the lower adjacent sliding block component, each said sliding block component being in its normal state, and a gap A being formed between a top of the topmost sliding block component and the upper limit block;
• when any of the drawers is drawn out, the driving shaft of the driving arm fixed to the drawer moving forward with the drawer, thereby driving the sliding block component thereabove to slide upward, making the gap A decrease gradually, and when the driving shaft passes through a gap between the two sliding block components, the drawer being open, and the retaining shaft of the sliding block component biased by the torsion spring starting to rotate to a location between the two sliding block components, so that the gap A remains its state when the drawer is open, where 0≤A<D, and the other driving shafts are prevented from being drawn out, thereby realizing interaction;
• wherein D is a diameter of the driving shaft.