| 摘要 |
<p>A telescopic collection box comprises a lower box body (1), a middle box body (2) and an upper box body (3) that are nested in turn. A top cover (5) is provided on the upper box body (3). Between the lower box body (1) and the middle box body (2) are provided a guiding device (4) for allowing the lower box body (1) and the middle box body (2) to slide relatively and a restricting device (8) for preventing the lower box body (1) from departing from the bottom of the middle box body (2). Between the middle box body (2) and the upper box body (3) are also provided an upper guiding device (4) for allowing the middle box body (2) and the upper box body (3) to slide relatively and a restricting device (8) for preventing the middle box body (2) from departing from the bottom of the upper box body (3). The guiding devices (4) comprise female dovetail slots (41) provided at side walls of one box body and male dovetails (42) provided at side walls of another adjacent box body and slidable in the female dovetail slots (41). The telescopic collection box has the guiding devices including female dovetail slots and male dovetails that fit with each other and can not depart from each other, thereby overcoming the drawbacks in the prior art.</p> |
