Control device for last strength in javelin throwing teaching
A control device and javelin technology, applied in the direction of sports accessories, etc., can solve the problem that the shooting angle of the javelin is not easy to grasp, etc., and achieve the effect of simple structure, safe use, and stable power setting
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[0023] The present invention will be further described below in conjunction with accompanying drawing and embodiment.
[0024] The control device for javelin final force teaching of the present invention includes A column 2 and B column 12 with different heights fixed at intervals, the height of A column is higher than that of B column by a certain size, and a javelin is connected between the upper part of A column and the upper part of B column Guide cable 7, on the described javelin guide cable, slide and install exercise javelin 8 along the length direction.
[0025] The A column and the B column are respectively provided with a height adjustment device, and the height adjustment device can also be used as an angle adjustment device to adjust the angle of the guide wire rope.
[0026] The height adjustment device includes lower gear boxes 11, 1, lead screws 3, 13 and slide blocks 10, 4, lead screw and nut pairs are arranged in the A column and the B column, slide blocks 10,...
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