As can be seen in FIG. 22, the chassis-wall module 200 includes a first partitioning wall 210 and a pull-out aiding device 100 described in the first embodiment of the present invention; and the pulling member 110 of the pull-out aiding device 100 is movably coupled with the first partitioning wall 210.

As shown in FIG. 23, a variation of the chassis-wall module 200 includes a first partitioning wall 210 and a pull-out aiding device 100 described in the second embodiment of the present invention; and the pulling member 110 of the pull-out aiding device 100 is movably coupled with the first partitioning wall 210. In this case, the first partitioning wall 210 includes a receiving recess 213, and the pulling member 110 is arranged in the receiving recess 213.

In summary, the pull-out aiding device 100 and the chassis-wall module 200 according to the present invention can be easily and effortlessly operated to help a user conveniently remove a corresponding apparatus from a chassis.

The present invention has been described with some preferred embodiments thereof and it is understood that the preferred embodiments are only illustrative and not intended to limit the present invention in any way and many changes and modifications in the described embodiments can be carried out without departing from the scope and the spirit of the invention that is intended to be limited only by the appended claims.