Variable dual-tail-fin device for swimming

Abstract

The invention discloses a variable double tail fin equipment for swimming, which comprises a left tail fin, a right tail fin, and a double tail fin fixing rod. At least one caudal fin hinge structure is connected, and the fin span width or the fin span area of ​​the left caudal fin plus the right caudal fin is variable; the variable double tail fin equipment for swimming also includes double tail fin intelligent control components, At least one of the left tail fin and the right tail fin is connected with the double tail fin control mechanism of the double tail fin intelligent control part through at least one linkage element between each other, which can realize the electric motor of fin width change or fin spread area change. Manipulation and automatic adjustment with speed; the variable double tail fin equipment for swimming is fixed or bound to at least one calf or at least one foot of the swimmer through the double tail fin fixing rod.

Description

technical field [0001] The present invention relates to swimming equipment and diving equipment industries, in particular to a variable double tail fin equipment for swimming, which is used for swimming and diving sports. It can swim at high speed or roam at low speed, and is especially suitable for long-distance cruise in water. . 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...

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 roaming at low speed can obtain the deficiency of higher propulsion efficiency, the inventor carefully observes and studies the process of swinging tail fins of mammals such as dolphins and cetaceans returning to sea life, and cooperates with human Comparing the postures of dolphins and whales swinging their tail fins in the water, comparing the differences between the two, and then analyzing the reasons for the differences in detail, combining the characteristics of the human body movement structure, and scientifically and rationally using ergonomics to provide A variable tail fin device for swimming, which can intelligently adjust the fin spread width or fin spread area of ​​the variable tail fin device according to the swimmer's swimming speed in water, leg swing frequency, and leg swing amplitude, so as to achieve both It can fetch water at a higher frequency for high-speed swimming, or at a lower frequency for swimming at a low speed. No matter what frequency is used for fetching water, the swimmer can effectively increase the proportion of useful work, and has the characteristics of intelligent speed change. In this way, the forward efficiency and swimming speed of swimming and diving can be improved to the greatest extent, and the swimming potential of swimmers in the water can be fully utilized, thereby achieving the purpose of long-distance continuous cruising; swimmers can effectively reduce the time spent in long-distance cruising through intelligent variable speed cruising. In addition, the direction of thrust generated by the variable double tail fin equipment is exactly the same as the swimmer's direction of travel, thereby overcoming the leg and webbing caused by the double-footed bifins or double-footed monofins worn on the swimmer's feet. There is a defect that the direction of the propulsion force generated by the fins hitting the water cannot be completely consistent with the swimmer's forward direction, so as to further improve the propulsion efficiency

Images