Mechanical speed-variable cruising facility for swimming

Abstract

The invention discloses a mechanical variable-speed cruise equipment for swimming, which comprises a tail fin fixing rod, a foot fixing structure, an ankle hinge structure, a variable tail fin device and a balanced force application device. The left tail fin and the right tail fin of the variable tail fin device are The caudal fin fixing rod is located on both sides of the caudal fin fixing rod and is connected with the caudal fin fixing rod through at least one caudal fin hinge structure between each other; the variable caudal fin linkage element connects the ankle hinge shaft with the left caudal fin and the right caudal fin, and balances the force-applying linkage The element connects the hinge shaft of the ankle with the elastic element of the knee through the lever arm, and the swimmer can adjust the width or area of ​​the fin of the variable tail fin device and the elastic element of the knee by straightening the instep or hooking the foot. Elastic size.

Description

technical field [0001] The present invention relates to swimming equipment and diving equipment industry, especially to a kind of mechanical variable speed cruising equipment for swimming, which is used for swimming and diving sports. . Background technique [0002] In contemporary society, swimming and diving are becoming more and more popular, and various swimming equipment and diving equipment emerge in endlessly. The vast majority of swimming equipment and diving equipment use fins as the main propulsion tool. Double-footed monofins, double-footed double-finned swimmers wear a flipper on each foot, and the swimmer generates forward propulsion by alternately hitting the water with their legs. Double-footed monofins mean that swimmers wear one flipper on both feet , the swimmer generates forward propulsion by kicking the water synchronously with both legs. [0003] Whether it is a double-footed bifin or a double-footed monofin, it has its most suitable single kicking fre...

AI Technical Summary

Problems solved by technology

[0005] For the main propulsion tools of current swimming equipment and diving equipment, the bi-fins and mono-fins have not solved the natural movement structure defect that the human body is not suitable for swimming efficiently in water, and it is difficult to achieve high-speed and fast swimming. Swimming and low-speed slow swimming can obtain higher propulsion efficiency. The inventor carefully observes and studies the process of swinging tail fins of mammals such as dolphins and cetaceans returning to the sea life, and communicates with them. Human beings imitate the postures of dolphins and whales swinging their tail fins in the water to compare and compare the differences between the two, and then conduct a specific analysis of the reasons for the differences. Combined with the characteristics of human motion structure, through the scientific and reasonable use of ergonomics, provide A mechanical variable speed cruising equipment for swimming is proposed, which can adjust the fin spread width or fin width of the variable tail fin device by turning the ankle according to the swimming speed of the swimmer in the water, that is, doing the action of straightening the instep or hooking the foot. The exhibition area and the elastic force of the knee elastic elements can reach the high-speed and fast swimming with a higher frequency, and the low-speed and slow swimming with a lower frequency. It can effectively increase the proportion of useful work, thereby maximizing the advancing efficiency and swimming speed of swimming and diving, and fully exerting the swimming potential of the swimmer in the water, thereby achieving the purpose of long-distance continuous cruising; It can effectively reduce the feeling of fatigue during long-distance cruising; in addition, the direction of thrust produced by the mechanical variable speed cruising equipment is exactly the same as the direction of swimmers' travel, thus overcoming the problem of double fins or monofins being worn on the feet of swimmers. The resulting angle between the legs and the fins makes the direction of the propulsion generated by the fins hitting the water not completely consistent with the swimmer's forward direction, thereby further improving the propulsion efficiency

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