Material height constant device

Abstract

The utility model discloses a material height constant device which comprises a machine frame, a fixed pulley is arranged on the upper portion of the machine frame, a placing piece and a balancing weight are movably arranged on the two sides of the fixed pulley respectively, and the placing piece is provided with a guide wheel in sliding fit with the machine frame. A connecting rope is connected between the placing piece and the balancing weight, the connecting rope is wound on the fixed pulley, a limiting rod is rotatably arranged on the lower portion of the rack, and when the limiting rod rotates to be in a transverse state and the guide wheel is located below the limiting rod, the limiting rod limits the guide wheel to move upwards. According to the material height constant device of the structure, the material box can be lifted, people can rapidly take materials in the assembling process, the number of times that people bend down is reduced, and the number of placing pieces can be reduced subsequently so that the difficulty of carrying the material box to the rack can be reduced.

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