An English shorthand training device
A training device and shorthand technology, used in teaching aids, educational aids, instruments, etc., can solve the problems of difficulty in concentration and unsatisfactory effect, and achieve the effect of optimizing the layout of components, saving space, and rolling comfortably
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[0025] The present invention will be further described below in conjunction with accompanying drawing.
[0026] Such as figure 1 , 2 3. An English shorthand training device. The upper ring 1 hollow circle protrudes downward to form the upper cylinder 2, the lower ring 3 hollow circle protrudes upward to form the lower cylinder 4, and the cylinder 5 passes through the bearing and the described The upper cylinder 2 is connected to the lower cylinder 4, the middle column 6 passes through the cylinder 5, and the two ends are respectively fixed on the side walls of the upper cylinder 2 and the lower cylinder 4 by fixing rods 8 , the side wall of the drum 5 is provided with a longitudinal rectangular opening 7, a clockwork spring 9 is arranged inside the drum 5, the central end of the clockwork spring 9 is fixed on the central column 6, and the outer side of the clockwork spring 9 The end is connected to one end of the connecting piece 10 , and the other end of the connecting piec...
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