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Variable caudal fin device for swimming

A caudal fin and variable technology, applied in swimming fins, transportation and packaging, ships, etc., can solve the problems of inability to achieve propulsion efficiency, reduce fatigue in long-distance cruises, etc., achieve convenient and free choice, reduce resistance, and reduce fatigue. sense of effect

Pending Publication Date: 2017-07-25
朱光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the disadvantages that the main propulsion tools of current swimming equipment and diving equipment, the double fins and the double fins, cannot achieve high propulsion efficiency in both states of high-speed fast swimming and low-speed roaming, the inventors Through careful research, combined with the structural characteristics of human body movement, and scientifically and rationally using ergonomics, a variable tail fin device for swimming is provided, which can not only fetch water at a higher frequency and swim at a high speed, but also swim at a lower speed. No matter what frequency the swimmer fetches water at, the swimmer can obtain higher propulsion efficiency, so as to achieve the purpose of arbitrarily changing the cruising speed; in addition, the swimmer can also effectively reduce the long-term Fatigue from distance cruising

Method used

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  • Variable caudal fin device for swimming
  • Variable caudal fin device for swimming
  • Variable caudal fin device for swimming

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Embodiment one: if Figure 10 As shown, a kind of variable tail fin device for swimming of the present invention mainly comprises main tail fin 1, auxiliary tail fin 2, main and auxiliary fin hinged structure 3, main and auxiliary fin elastic device 4, variable tail fin fixing rod 7 and is combined in Structural state together.

[0080] The left and right sides of the main caudal fin 1 are respectively provided with an auxiliary caudal fin 2, and the main caudal fin 1 and the auxiliary caudal fin 2 are connected together in parallel, and the span width of the main caudal fin 1 plus the auxiliary caudal fin 2 is variable.

[0081] The auxiliary tail fin 2 is connected with the main tail fin 1 through the main and auxiliary fin hinge structure 3, and the auxiliary tail fin 2 is rotatable with the hinge point of the main and auxiliary fins as the center of the rotation axis.

[0082] A main and auxiliary fin elastic device 4 is respectively arranged between the two auxili...

Embodiment 2

[0087] Embodiment two: if Figure 11 As shown, a variable tail fin device for swimming of the present invention mainly includes main tail fin 1, auxiliary tail fin 2, main and auxiliary fin hinge structure 3, main and auxiliary fin elastic device 4, main and auxiliary fin locking structure 6, can Change the structural state of the caudal fin fixing rod 7 and combine them together; the auxiliary caudal fin 2 has a smooth, rounded surface with low flow resistance, which can effectively reduce the resistance of swimmers.

[0088] In this embodiment, in addition to including the main tail fin 1, the auxiliary tail fin 2, the main and auxiliary fin hinge structure 3, the main and auxiliary fin elastic device 4, and the variable tail fin fixing rod 7, between the main tail fin 1 and the auxiliary tail fin 2 there is an additional Main and auxiliary fin locking structure 6.

[0089] The main and auxiliary fin locking structure 6 includes a main and auxiliary fin locking bolt 601 and...

Embodiment 3

[0092] Embodiment three: as Figure 12 , Figure 13 As shown, a variable tail fin device for swimming of the present invention mainly includes a main tail fin 1, an auxiliary tail fin 2, a main and auxiliary fin hinged structure 3, a main and auxiliary fin locking structure 6, a variable tail fin fixing rod 7, a main The structural state of the auxiliary fin elastic element 401 and combined together.

[0093] In this embodiment, in addition to the main tail fin 1, the auxiliary tail fin 2, the main and auxiliary fin hinge structure 3, the main and auxiliary fin locking structure 6, and the variable tail fin fixing rod 7, one is provided on each side of the main tail fin 1. The elastic elements 401 of the main and auxiliary fins of the shrapnel type apply elastic force to the auxiliary tail fins 2 on the left and right sides respectively; the elastic elements 401 of the main and auxiliary fins of the shrapnel type can be made of metal materials, or can be made of elastic non-m...

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Abstract

The invention discloses a variable caudal fin device for swimming. The variable caudal fin device comprises a main caudal fin and auxiliary caudal fins, at least one caudal fin is arranged on the side face of the main caudal fin, the main caudal fin is parallel to the auxiliary caudal fins, the auxiliary caudal fins are hinged to the main caudal fin through main-and-auxiliary caudal fin hinged structures, the auxiliary caudal fins rotate around main-and-auxiliary hinge points as rotation axis centers, main-and-auxiliary fin elastic components are arranged between the main caudal fin and the auxiliary caudal fins, the main-and-auxiliary fin elastic components apply the elastic force between the main caudal fin and the auxiliary caudal fins, elastic force adjusting structures for adjusting the elastic force of the main-and-auxiliary fin elastic components are arranged between the main caudal fin and the auxiliary caudal fins, and the main caudal fin is fixed to at least one shank or at least one foot of a swimmer through a variable caudal fin fixing rod.

Description

technical field [0001] The invention relates to swimming equipment and diving equipment industries, in particular to a variable tail fin device for swimming, which can be 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 is a double-foot...

Claims

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Application Information

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IPC IPC(8): B63C11/02A63B31/08
CPCA63B31/08B63C11/02Y02T70/10
Inventor 朱光
Owner 朱光