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A ball-serving device and tennis ball technology, applied in the field of tennis training, can solve the problems affecting the quality of training, the fixed position of the ball, and the poor quality of the ball, and achieve the effects of complete functions, increased speed, and low production cost
Active Publication Date: 2020-04-28
SHAOYANG UNIV
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[0003] The object of the present invention is to provide a kind of serving device for tennis training in order to solve the above-mentioned problems, solve the problem that the existing serving device for tennis training has relatively low serving efficiency, and the quality of serving is also relatively poor, and the position of serving is relatively fixed in addition, This seriously affects the quality of training
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[0020] like figure 1 and figure 2 As shown, this specific embodiment adopts the following technical solutions: a tennis ball training device, including an outer shell 1, a universal wheel 2, a circular groove body 3, a turntable 4, an end cover 5, a motor 6, a connecting hole 7, a card Fastener 8, air extraction hole 9, fixed seat 10, air injection port 11, air delivery channel 12, air extractor 13, connecting pipe 14 and air extraction groove 15; the lower side of the outer casing 1 is provided with a circular groove body 3, The bottom of the outer casing 1 is provided with several universal wheels 2; the turntable 4 is movably connected in the circular groove body 3 through the end cover 5, and the center of the front side of the turntable 4 is fixedly connected with the output shaft end of the motor 6. The inner center of the rear side of the turntable 4 is movably connected to the outer circle of the front side of the fixed seat 10; the left side of the fixed seat 10 is ...
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Abstract
The invention discloses a ball shooting device for tennis training. The ball shooting device comprises an outer shell body, universal wheels, a round groove body, a rotating plate, an end cover, a motor, a connecting hole, a clamping piece, an exhaust hole, a fixed base, a gas spraying opening, a gas conveying channel, an exhaust machine, a connecting pipe and an exhaust groove. The ball shootingdevice is reasonable and simple in structure, low in production cost, convenient to install and complete in function; the motor is a stepping motor, and therefore the precise programming control can be conveniently conducted through an existing control technology, it is ensured that the rotating plate can indirectly rotate by 90 degrees anticlockwise, it is ensured that tennis balls can be intermittently filled and shot, and the ball shooting efficiency is improved; the exhaust machine can vacuumize the exhaust groove, when the connecting hole is located on the upper side, the exhaust hole onthe side face can be communicated with the interior of the exhaust groove, and therefore the tennis balls can be sucked into a ball-shaped clamping groove, and the tennis ball filling speed and quality are greatly improved.
Description
technical field [0001] The invention relates to the technical field of tennis training, in particular to a ball-serving device for tennis training. Background technique [0002] With the rapid growth of my country's economic strength, people's quality of life is constantly improving, so they pay more attention to the comprehensive development of their own morality, intelligence, physical fitness and beauty. Sports are good for health, and can also help people reduce stress and maintain a good mood. Among them, tennis is It is a sport that is widely loved by everyone, but for beginners, it is difficult to master and requires continuous strengthening of practice and training. However, in real life, if artificially assisted serve training is used, during the training process, the trainer or assistant will be physically vulnerable. Fatigue, which leads to insufficient training, affects the training effect, and the training cost is also high; while the existing tennis training ball...
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Application Information
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