Butterfly stroke land training device

Abstract

The invention discloses a butterfly swimming stroke land trainer. The butterfly swimming stroke land training instrument comprises a support frame and a bumping track; a plurality of middle shafts are arranged on the support frame, the middle shafts are all sleeved with a long-shaft bearing, and the middle shafts are parallelly arranged in a row to form a middle shaft board; one or more driving gears meshed with the bumping track are arranged on the end portion of the middle shaft board; the bumping track comprises a track body surrounded on the middle shaft board, a plurality of bumpings with different height are arranged on the outer surface of the track body, and the bumpings are arrayed in order to make the top ends of the bumpings connect together to form a relatively smooth corrugated curved surface, a plurality of lifting plates are arranged on each bumping, and all the lifting plates are connected together to form a lifting track; a corrugated sports flexible structure for a trainer to lie prostrate and move up and down along with the bumping track is arranged on the lifting track; a guide orbit which is consistent with the arm pulling of the butterfly stroke is arranged outside the support frame. The butterfly swimming stroke land trainer makes the trainer to achieve a set of underwater butterfly swimming stroke actions which are standard, complete and continuous on the land.

Description

technical field [0001] The invention belongs to the field of sports equipment, and in particular relates to a butterfly stroke land training device. Background technique [0002] Butterfly is one of the swimming events, the practitioners are divided into the following essentials when practicing: [0003] 1. Breathing in butterfly strokes, generally stroke once with both arms and breathe once. After the arms enter the water, start to exhale slowly, and when the arms hold the water and finish the inward stroke, start to raise your head. As the arms stroke back, the position of the head and shoulders gradually rises, and the exhalation also proceeds from slow to fast, and continues to raise the head forward. When the two hands are paddling to the bottom of the abdomen, the chin is out of the water and stretched forward along the water. When the two hands are pushing the water and the arms are out of the water, open the mouth and inhale. Hold your breath in the water. Most p...

AI Technical Summary

Problems solved by technology

[0016] At present, in the process of butterfly training, standing on land, lying prone, or decomposing in the water are used to practice arm strokes, body wave swings, leg kicks, etc., and a complete cycle of movements can only be practiced in the water, but in In the early days of swimming, many students did not practice well in the water

Existing patent applications (such as Chinese patent CN203777639) disclose a land swimming simulator, but its disadvantage is that the training effect for butterfly stroke is not ideal, and it cannot simulate the unique wave curve of butterfly stroke, and it cannot practice complete and continuous swimming. Actions

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