Adjustable variable exercise question bank machine
A question bank machine and adjustment technology, which is applied in the direction of mechanical operation teaching aids, instruments, educational tools, etc., can solve the problems of inconvenient adjustment, inconvenience for users to use, inconvenient for horizontal rotation adjustment and movement adjustment, etc., and achieves convenient horizontal movement adjustment. Effect
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[0012] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0013] Such as figure 1 As shown, an adjustable variable exercise library machine includes a base 1, the bottom of the base 1 is provided with a first moving wheel 2 and a second moving wheel 3, the base 1 is provided with a guide tube 4, and the guide tube 4 is a tubular structure , the guide tube 4 is sleeved with a coiled tube 5, the outer surface of the coiled tube 5 is provided with external threads, the inner surface of the guide tube 4 is provided with internal threads, and the guide tube 4 and the coiled tube 5 are connected by threads; the end of the coiled tube 5 The outer peripheral surface is covered with a rotary plate 9, and a guide shaft 10 is arranged above the rotary plate 9, and the guide shaft 10 is arranged horizontally. Suppor...
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