Multi-section telescoping structure

A telescoping structure, comprising:

• a hollow outer section comprising a first sidewall, a second sidewall, and a third sidewall, and a pair of sliding rails arranged on an interior surface of the first sidewall, the second sidewall defining a first guiding groove, the third sidewall defining a second guiding groove;
• and
• a hollow inner section slidably mounted in the hollow outer section, the hollow inner section comprising a fourth sidewall, a fifth sidewall, and a sixth sidewall, a pair of raised grooves arranged on an exterior surface of the fourth sidewall, a first cam follower arranged on an exterior surface of the fifth sidewall, and a second cam follower arranged on an exterior surface of the sixth sidewall;
• wherein the pair of sliding rails are engaged in the pair of raised grooves, the first cam follower is received in the first guiding groove, the second cam follower is received in the second guiding groove, so that the hollow inner section is movable between a retracted position, in which the hollow inner section is substantially inserted in the hollow outer section, and an extended position, in which the hollow inner section projects outwards from the hollow outer section.