Ground drain shaft sections - have bottom upward bends, locking hangers in place, and overlapped by sockets

摘要

A top piece (5) in shaft shape, prolongs a drain container upwards, in drainage provision in the ground. They have top edge insertion rebates for the bottom opening edge of the unit above. The bottom opening edge (11) of each upper piece (3,3') has bent sections (15) running upwards, overlapped by the socket piece of the plug-in rebate (23) outside. Hanger elements (10), extending into the drain interior, to form retainers, pass through these, outwards, so that their sides form-lock onto them, to hold them securely. Subsequent hanging of plugged-in components is made easier. (DS).