Locking and bolting unit

摘要

A locking and bolting unit for sections telescoping out of a basic element, in particular sections of a telescoping boom of a mobile crane. The invention involves a locking and bolting unit for sections telescoping out of a basic element, in particular sections of a telescoping boom of a mobile crane, comprising two safety bolts (3) arranged displaceably relative to each other, and an interlocking bolt (5) interacting with a grasper (4). Moreover, the safety bolts (3) and an extension of the grasper (4) constructed as a piston rod (5) are positioned together in a lower housing section vertically displaceable in relation to each other and the piston (6) for the piston rod (5) of the grasper (4) is located in an upper housing part (2) placed on a lower housing part (1).

主权项

1. Locking and bolting unit for sections of a telescoping boom of a mobile crane comprising two safety bolts arranged along a common axis displaceably relative to each other and an interlocking bolt interacting with a grasper, wherein the safety bolts and an extension of the grasper constructed as a first piston rod together are arranged in a lower housing section and displaceable in relation to each other, and in that a piston for the first piston rod of the grasper is located in an upper housing part placed on a lower housing part, and wherein a second piston rod is coupled between the safety bolts and extends along the common axis between the safety bolts, and the safety bolts are movable toward and away from each other along the common axis of the second piston rod, wherein the second piston rod is connected to at least one of the safety bolts and guided in another safety bolt of the two safety bolts.