Patent ID: 7775612

Claim:
An interlocking device for a drawer slide comprising: a fixed slide rail, at least one movable slide rail, a positioning block, a first locking member, a second locking member, a pivot control member, at least one spring, a control block assembly and two connecting rods; wherein the moveable slide rail is movably disposed in the fixed slide rail; the positioning block is fixed at one end of the fixed slide rail and is defined with a slide groove; the first locking member is slideably disposed in the slide groove of the positioning block, one end of the first locking member is connected with one of the two connecting rods; the second locking member is slideably disposed in the slide groove of the positioning block, a pivot member is formed at one end of the second locking member, and the other end of the second locking member is connected with the other one of the two connecting rods; the pivot control member is located between the first and second locking members and is pivotally mounted on the pivot member of the second locking member, a guiding block is formed on the pivot control member for cooperating with the first locking member and includes a slant surface, a flat surface, and a control shaft is located beside the guiding block, the pivot control member is provided with a confirmation rod located in a direction of the moveable slide rail; the control block assembly includes a control block mounted on the movable slide rail and is provided with a guiding surface for cooperating with the control shaft of the pivot control member, the guiding surface pushes the pivot control member to rotate, a pushing block is formed on the control block for pushing the confirmation rod of the control pivot member to move; and the spring is disposed between the first locking member and the positioning block for pushing the first locking member toward the second locking member in response to the control block pushing the control shaft.