Tennis training device with rotatable tennis serving function

Abstract

The invention discloses a tennis training device with a rotatable tennis serving function, and belongs to the technical field of sports equipment. The tennis training device with the rotatable tennis serving function comprises a racket swinging structure and a ball throwing structure, a motor is fixedly arranged on a bottom plate, an output shaft of the motor is fixedly connected with one end of a first sleeve, an included angle alpha is formed between the axis of the output shaft of the motor and the axis of the first sleeve, and a first threaded hole is formed in the wall of the first sleeve, the first threaded hole is in threaded connection with a first bolt used for abutting against a handle of the tennis racket. The ball throwing structure comprises a fixing rod, one end of the fixing rod is fixed to the upper portion of the motor shell, the other end of the fixing rod is inclined upwards and provided with a notch in the length direction of the fixing rod, an opening of the notch is upward, and a channel used for containing tennis balls is formed in the inner wall of the notch. The device is used for simulating the racket swinging action of a human hand, so that a practicer can pre-judge the rotating direction and the motion trail of a tennis ball by observing the racket swinging action, and training is closer to real opposite playing.

Description

technical field [0001] The invention relates to the technical field of sports equipment, in particular to a tennis trainer with the function of rotatable tennis balls. Background technique [0002] With the continuous improvement of people's quality of life, people pay more and more attention to fitness and sports. Maintaining good exercise habits can improve people's physical fitness and mental state. Now tennis is more and more popular. [0003] At present, in tennis practice, the coach often teaches skills, and then learners start from the simplest serve and practice repeatedly. In reality, as the rotation and flight trajectory of the tennis ball can be judged in advance by judging the opponent's swing, and The existing tennis ball servers on the market often send the tennis ball from the cylindrical launch tube. The moment the tennis ball is sent out, the practitioner only knows that the tennis ball is sent out, but how the tennis ball rotates and the direction of rotati...

AI Technical Summary

Problems solved by technology

[0003] At present, in tennis practice, the coach often teaches skills, and then learners start from the simplest serve and practice repeatedly. In reality, as the rotation and flight trajectory of the tennis ball can be judged in advance by judging the opponent's swing, and The existing tennis ball servers on the market often send the tennis ball from the cylindrical launch tube. The moment the tennis ball is sent out, the practitioner only knows that the tennis ball is sent out, but how the tennis ball rotates and the direction of rotation is not easy to judge. There is a large difference between the result and the actual game process, so a tennis training device with a rotatable tennis serving function is proposed

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