| 摘要 |
<p>A telescopic object protection device comprises columns (10) which are formed by sleeving and combining fixed pieces (1) and sliding pieces (2), an object fixing mechanism and a lock. The fixed pieces (1) and the sliding pieces (2) are tubes or rods; the total lengths of the columns (10) are changed by sliding the sliding pieces (2) relative to the fixed pieces (1); the object fixing mechanism is divided into two parts connected to the fixed pieces (1) and the sliding pieces (2) of the columns respectively; the lock is used for limiting the lengths of the columns, so that the columns cannot extend at preset lengths; and an elastic object (20) is arranged between the fixed piece (1) and the sliding piece (2), so that the sliding piece can flick towards the column extension direction when the lock is in an unlocked state.</p> |
