Ball throwing device for tennis service practices

Abstract

The invention discloses a ball throwing device for tennis service practices. The ball throwing device comprises a base, wherein a swinging rod is connected onto the base through a support shaft, a track is arranged in the swinging rod, an up-and-down reciprocate driving device is connected at one end of the swinging rod, a tennis ball basket is connected onto the base through a connecting piece, an exit is arranged at the bottom of the tennis ball basket and located above the track, and a switch door plank is arranged at the lower end of the exit and connected with a driving mechanism. A plurality of tennis balls are placed in the tennis ball basket, when the other end of the swinging rod moves downwards, the switch door plank is rotated to open the exit and the tennis balls fall to the track of the swinging rod, and when the other end of the swinging rod is stopped or reversed after being reversed and moved upwards, the tennis balls rolled to the end of the track are thrown upwards under the inertial effect. According to the ball throwing device, the swinging rod is repeatedly driven by utilizing the up-and-down reciprocate driving device, and the tennis balls are released by utilizing the tennis ball basket and the switch door plank one by one, and the tennis balls at the end of the swinging rod are thrown, so that repeatedly upward-throwing movements of the tennis balls by athletes are prevented, and the time of the athletes for actual hitting practices is increased.

Description

Technical field: [0001] The invention relates to the field of machinery, in particular to sports equipment, in particular to an automatic throwing device, in particular to a ball throwing device used for practicing tennis serve movements. Background technique: [0002] Tennis is a popular competitive sport. For tennis beginners, holding the racket, serving, and hitting are the three basic skills. Among them, serving is a scoring technique that is completely controlled by the player unilaterally. pivotal role. Serving techniques include flat serve, sliced ​​serve and topspin serve. The three different types of serve techniques are different in the grip method, throwing position, hitting point and rebound direction. To master the different three types of serving and accurately judge the landing point of the tennis ball in the air to hit, it needs repeated practice and training. Because the process of throwing a tennis ball firstly needs to be arranged in the serving process...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a ball throwing device used for tennis serving practice, said ball throwing device used for tennis serving practice to solve the problems caused by the players in the prior art constantly repeating the process of throwing the tennis ball up. Technical issues with reduced time to actually practice hitting

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