Intravenous equipment support

In a mobile intravenous equipment support,

• an extensible and retractable post adapted to support intravenous equipment and including a base section and another section directly above the base section, said sections being tubular, said sections having alignment indicating markers thereon adjacent to opposing ends thereof,
• a detachable fitting sleeve fixed within the lower end of said another section,
• a shaft extension secured to the fitting sleeve centrally thereof and extending downwardly therefrom and having a lower end camming face and a radial keeper recess somewhat above the camming face,
• a removable and replaceable receiver sleeve fixed concentrically within the top of the base section in coaxial alignment with the shaft extension and having a bore adapted to closely receive the shaft extension and having a radial opening including a chord straight edge for alignment purposes,
• a radial lock pin engaged through a radial opening of the base section and having a chord flat longitudinal face for engagement with and alignment by said chord straight edge in said radial opening and an inner end camming face, and
• yielding means biasing the lock pin radially inwardly whereby the lock pin will automatically enter the keeper recess of the shaft extension following engagement of said camming faces when the shaft extension is inserted into the receiver sleeve while said indicating marker are longitudinally aligned.