Manual swimming thruster

Abstract

The invention discloses a manual swimming thruster. The manual swimming thruster comprises propellers (4), a floating plate (1) used for providing buoyancy, a pair of handles (2) and a transmission assembly (3), wherein the handles (2) are driven in the mode of being held by the two hands and can swing in a reciprocating mode. The transmission assembly (3) and the floating plate (1) are fixedly installed. The transmission assembly (3) comprises a shell, a variable gear, an input shaft and an output shaft. The propellers (4) are fixedly installed on the output shaft of the transmission assembly. The handles (2) and the transmission shell are connected through hinges. The handles (2) swing in a reciprocating mode to drive the input shaft of a transmission to rotate. A user can hold the handles (2) with the two hands to operate the thruster, in the using process, tying connection is not needed, the device can provide the buoyancy and help a swimming beginner to float on the water surface, and is suitable for the swimming beginner, and the propellers can reach the ideal rotating speed and rotate continuously in one direction, so that continuous propelling force is provided.

Description

technical field [0001] 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 [0002] 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 experience the joy of swimming in water. It is fun, but if it is to learn swimming skills, it usually takes a long time, and many people give up because of this. [0003] Chinese patent (CN102553176B) d...

AI Technical Summary

Problems solved by technology

[0004] The above invention has the following defects: (1) The device is tied to the legs. If a rigid link device is used, it will affect the comfort of the legs and the operability is poor; if a flexible link is used, because the link is used as a power input component , 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

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