Manual swimming thruster

Abstract

The invention discloses a manual swimming thruster. The manual swimming thruster comprises a propeller (4), a floating plate (1), a pair of reciprocating swinging type handles (2) and a gearbox assembly (3), wherein the floating plate (1) is used for supplying a buoyancy force, and the reciprocating swinging type handles (2) can be held by two hands to be driven; the gearbox assembly (3) is fixedly mounted with the floating plate (1) and comprises a shell, a variable gear, an input shaft and an output shaft; the propeller (4) is fixedly mounted on the output shaft of the gearbox assembly, andthe handles (2) are connected with a gearbox shell through hinges and can execute reciprocating swing so as to drive the input shaft of a gearbox to rotate. The manual swimming thruster is operated byholding the handles (2) by two hands, the binding connection is not required in the use process, and the thruster is capable of supplying the buoyancy force, so that a swimming beginner can be assisted to float on the water surface, and the thruster is suitable for being used by the swimming beginner; and the propeller can reach an ideal rotation speed and can continuously rotate towards one direction so as to supply a continuous propulsive force.

Description

[0001] This application is a divisional application of the Chinese invention patent (application date: June 30, 2014, patent name: manual swimming propeller) with application number 201410305158.X. technical field [0002] The invention relates to a swimming auxiliary device with a propeller, in particular to a propulsion device which enables the swimmer to swim forward in water through the swimmer driving a propeller wheel. Background technique [0003] Swimming is a skill that relies on self-reliance to float on the water and moves forward in the water with the movement of one's own limbs. It is one of the sports that is liked by men, women, and children. However, to master swimming skills proficiently, a long-term training process is required. The survey found that in public swimming pools, there are not many people who can master swimming skills proficiently. Most people can only stand in shallow water or float on the water with the help of swimming rings, and cannot expe...

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned invention has the following defects: (1) the device is tied to the leg, if a rigid link device is used, it will affect the comfort of the leg, and the operability is poor; if a flexible link is used, because the link is used as a power input assembly , will inevitably affect the stability of the entire device

(2) The main function of this device is to speed up swimming, which is only suitable for people who have already mastered swimming skills, and is not suitable for beginners

Directly increasing the diameter of the propeller or the transmission ratio between the second gear and the transition gear will cause an increase in volume and quality, which will affect the use effect

(4) The first connecting rod and the second connecting rod swing back and forth around the hinge point, so that the propeller shaft rotates forward and reverse alternately. Set a one-way flywheel, so that the propeller actually rotates intermittently, and during the time period when the propeller stops rotating, not only can it not speed up, but it will also increase the resistance to sliding forward

Images