Lifting servo for cross bar support of pole vault frame

Abstract

The invention relates to a lifting servo device with simple operation, while it can confirm the height accuracy of beam rod in rod jump, wherein it comprises post fixed with lifting tooth bar and sliding fixed with sliding support; the sliding support is arranged with lifting motor; the output axle of lifting motor is fixed with one end of worm; another end of worm is movably arranged in the sliding support; the sliding support has transmission axle connected to transmission gear and worm wheel; the worm wheel is matched with worm; the transmission gear is matched with lifting tooth bar; one side of post has lifting sliding groove; the sliding support has lifting post matched with sliding groove; the locking bolt via sliding groove fixes the sliding frame and lifting post; the rod support is connected to the sliding frame.

Description

technical field [0001] The invention relates to a pole vault frame, in particular to a lifting servo device for a cross bar bracket in a pole vault frame. Background technique [0002] Pole vault is a kind of sports equipment widely used in track and field. The structure of the commonly used pole vault frame usually includes: a base, a column is arranged on the base, and a device for controlling the lifting of the cross bar bracket is arranged in the column. The adjusting handle on the top is matched with the adjusting screw rod, and a lifting chute is provided on one side wall of the column, and the sliding frame passes through the lifting chute and is threadedly connected with the adjusting screw rod, and is used to set the horizontal bar bracket for shelving the horizontal bar. on the sliding box. When in use, the staff must constantly adjust the position of the crossbar according to the athlete's high jump height. The adjustment process is: the staff shakes the adjustm...

AI Technical Summary

Problems solved by technology

The disadvantage of the lifting device with this structure is: the height of the cross bar is adjusted by the hand-operated adjustment handle. Due to factors such as improper force and uneven force, the adjustment process is difficult to grasp. When the adjusted height exceeds the set height, it needs to be adjusted. Going back, and when going back, it is very easy to go too far, which requires constant back and forth corrections

In this way, not only the accuracy of the position of the crossbar cannot be well guaranteed, but also the adjustment process is time-consuming and laborious, which greatly increases the workload of the staff

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