Low-cost high-strength upright and sliding block system thereof

The invention relates to a low-cost high-strength upright and a sliding block system thereof. The sliding block system of the low-cost high-strength upright includes an upright assembly and a slidingblock assembly; the sliding block assembly is arranged in the upright assembly; the upright assembly is a bent steel plate upright structure with an opening flange; the sliding block assembly includesa sliding block body, a front guide wheel group and a side guide wheel group; the top of the sliding block body is connected to a traction device arranged on the upper end of the upright assembly; ahanging basket support is connected to the sliding block body; the front guide wheel group and the side guide wheel group are separately arranged at the upper and lower ends of the sliding block body;front guide wheels of the front guide wheel group are located in the opening flange of the upright assembly and are used for relieving the front pressure exerted by the working load on the upright assembly; and side guide wheel