| 摘要 |
The invention relates to a telescopic support (10) for the construction industry, comprising an outer tube (12) and an inner tube (14) axially displaceably arranged therein, said inner tube being secured by means of a fail safe against removal from the outer tube (12). The fail safe comprises a stop element which is arranged on the outer tube (12) and with which at least one stop means (48) arranged on the inner tube (14) can be brought in contact. According to the invention, the stop element is provided in the region of an end (20) of the outer tube (12) and covers the free cross-sectional surface of the outer tube (12) at least partially. The stop element is preferably designed as cap (22) and comprises an internal thread (26) that engages with an external thread (36) of the outer tube (12). The external thread (36) is in engagement with a recessed nut (38) on which a securing pin (40) can be supported, which can be guided through the outer and inner tubes (12; 14) transversely to the longitudinal axis (30) of the telescopic support (10). |
