Blocking module for a quick coupler in a construction machine

摘要

The module has a connection device (2) fixed on a tool (3). A fastener coupler (4) is arranged at an end of an arm of a civil engineering works vehicle connected to the device. A detection finger (32) moves between a deployed position and a retracted position. Connection chains connect the finger to a blocking bolt (16) to allow the bolt to pass from a deactivated position to an activated position. An inhibition unit of the chains allows passage of the bolt from the activated position toward the deactivated position when the finger is maintained in the retracted position.