Please refer to FIGS. 6 and 7, in which the first and second limiting units for a first variation of the pull-out aiding device 100 are shown. According to the first variation, the first limiting unit 113 includes two flanged bosses 113A, 113B, and the second limiting unit 212 includes two quick-release guide rails 212A, 212B that are associated with the two flanged bosses 113A, 113B in a one-to-one correspondence. As can be seen in FIGS. 6 and 7, the two flanged bosses 113A, 113B are movable in along the corresponding quick-release guide rails 212A, 212B.

In addition, the releasable fastening element 130 can have more than one latch 131. In the illustrated first variation of the first embodiment, there are shown two latches 131. Correspondingly, the second partitioning wall 220 can be provided with more than one latch hole 221 (not shown in FIGS. 6 and 7) for the latches 131 to engage with. The releasable fastening element 130 further has two locating stoppers 134, which are adapted to abut against a front edge of the second partitioning wall 220, so that the releasable fastening element 130 and the second partitioning wall 220 are held in place relative to each other.