Arm strength training device for children's volleyball training
A training device and volleyball technology, applied in the field of volleyball training, can solve problems such as devices without volleyball training, and achieve the effect of exercising arm strength and maintaining hand feel
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[0025] Such as Figure 1-7 As shown, a kind of arm strength training device for children's volleyball training in this embodiment includes four support tubes 1, the bottoms of the four support tubes 1 are fixedly equipped with telescopic components, and the tops of the four support tubes 1 are fixedly installed with For the same top plate 2, the bottom center of the top plate 2 is fixedly connected with a pillar 3, the bottom of the pillar 3 is fixedly connected with a cylinder 4, and both sides of the cylinder 4 are fixedly connected with cross bars 36, and the distance between the four cross bars 36 is One end of the cylinder 4 is respectively fixedly connected to one side of the four support tubes 1, the inner wall of the cylinder 4 is rotatably connected with a rotating rod 11, and both ends of the rotating rod 11 are fixedly connected with a rotating screw 17, and the two rotating screws 17 The outer wall is equipped with a rotating spiral ring 18, and the end of the rota...
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