Quick coupler and quick coupler system with such a quick coupler

A quick coupler for changing attachments on a construction machine, the quick coupler comprising:

• a carrier,
• first receptacles arranged on one side of the carrier for a first coupling element,
• second receptacles arranged on the other side of the carrier for a second coupling element,
• a locking device associated with the first receptacles and movable between a release position and a locking position, and
• a catch device arranged on the carrier and having at least one catch hook pivotably arranged on the carrier for catching the attachment,
• wherein a control element is arranged on the catch hook for pivoting the catch hook independently of the locking device between a folded-down change and catch position and a folded-up safety position,
• wherein the catch hook is pushed into the folded-down change and catch position by a reset device,
• wherein the reset device comprises a bolt-shaped pressure element associated with the at least one catch hook and biased by a pressure spring, and
• wherein the bolt-shaped pressure element is arranged in a bore of the carrier and pushes with an upper end against an underside of the control element on the at least one catch hook.