Equipment carrier having: a surface module with a first securing device (23, 24), a column module (30, 40) with a second securing device (33, 43); wherein the first securing device (23, 24) on the surface module and the second securing device (33, 43) on the column module (30, 40) are designed corresponding to each other such that the column module (30, 40) and the surface module are connectable to each other with a first, linear movement and a subsequent second, rotational movement of the column module (30, 40) relative to the surface module, and a further column module (30, 40), which is connectable to the surface module in the same way as the column module (30, 40) wherein, a further surface module, which is connectable to the column modules (30, 40), wherein the column modules (30, 40) and the further surface module are designed in such a way that the further surface module is connectable to the column modules (30, 40) only when the column modules (30, 40) are positioned and oriented relative to each other as in the case of their intended connection to the surface module wherein, recesses (63, 64) in the further surface module for receiving a respective end (36, 46) of a respective column module (30, 40) to be directed towards the further surface module, wherein the recesses (63, 64) are arranged and designed in such a way that the ends (36, 46) of the column modules (30, 40) to be directed towards the further surface module can be simultaneously inserted into a respective associated recess (63, 64) only when the column modules (30, 40) are positioned and oriented relative to each other as in the case of their intended connection to the surface module characterized in that, in which the securing devices (23, 24, 33, 43) are designed and arranged such that the first, linear movement is possible only in a predetermined arrangement and orientation of the column module (30, 40) relative to the surface module and in which bores (35, 45) are so arranged at the ends (36, 46) of the column modules (30, 40) to be directed towards the further surface module, and securing openings are so arranged on the further surface module, that the bores (35, 45) can be brought into coincidence with the securing openings only when the column modules (30, 40) are positioned and oriented relative to each other as in the case of their intended connection to the surface module wherein, in which the first securing device comprises a securing opening (23, 24) on the surface module, the second securing device comprises a pull rod on the column module (30, 40), the pull rod comprises a head, at the end (32, 42) of the column module (30, 40) to be directed towards the surface module, and a thread, at the end (36, 46) of the column module (30, 40) to be directed towards the further surface module, the head of the pull rod is provided and designed to protrude in relation to the end (32, 42) of the column module (30, 40) to be directed towards the surface module and to engage in a securing opening (23, 24) on the surface module, the thread of the pull rod is provided and designed to protrude in relation to the end (36, 46) of the column module (30, 40) to be directed towards the further surface module and to engage in a securing opening on the further surface module.