It is mainly made up of frame, gate board, screw pole, nut etc. Rotate the handwheel by hand, then the screw pole drives the nut gate board move in horizontal to fro to open close the valve.
主要由框架、闸板、丝杆、螺母等零件构成，用手转动手轮使丝杆带着丝杆螺母和闸板沿水平方向往复运动，达到闸门的启闭目的。
Disclosed is a supporting pole frame which relates to the improvement of a fishing device supporting pole structure.
支杆架是涉及钓鱼用具支杆架结构的改进。
Subsoiling ploughAn automatic agricultural machinery with various functions. Made up of frame, pole, plough share, soil separating board, leading bogie and strengthening tie bar.
一种自动多功能深松犁属于农业机械，由架体总成、犁柱总成、铧片、分土板总成、导向架总成和加强拉杆总成组成。
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