A tennis ball launching device

Abstract

The invention provides a tennis ball service device which comprises three foldable supporting mechanisms, a walking disc, a center supporting rod, a height and direction rotation mechanism, a ball box, an air compressor, a seat and the like. The tennis ball service device is separated from a service angle adjusting device and can guarantee ball service speed, ball service direction and placement which can be selected and set according to needs. A series of actions are automatically completed. In a specific embodiment, the center supporting rod and the ball box are main supporting parts, height and direction rotation angles are obtained by driving the mechanisms by a double-output motor. The power source of tennis ball service is the air compressor. The tennis ball service device is simple in structure, an existing complex mechanism is changed, the defects that a traditional machine is high in fault rate and instable in ball service quality are avoided, a tennis ball channel cannot abrade tennis balls, and the service life of the tennis balls is prolonged.

Description

technical field [0001] The invention relates to the field of sports equipment, in particular to a tennis ball launching device. Background technique [0002] Since the Ministry of Education put forward the proposal of "exercise one hour a day, work healthy for 50 years, and live happily for a lifetime." People have paid more attention to physical exercise, and the market demand for fitness equipment has expanded accordingly. Tennis is a beautiful and intense sport, many people like this sport, but the current tennis training relies on two people to practice or choose to connect against the wall, and the time schedule of the two practitioners may be inconsistent or the venue requirements may be affected limit. In order to make it easier for one person to practice tennis, some tennis launching devices have emerged. These devices can be used as sparring training to imitate people's serving speed and rotation strength, etc., have high degree of automation, good randomness, hig...

AI Technical Summary

Problems solved by technology

[0003] There are many styles of tennis launching devices. A tennis ball serving machine disclosed in Chinese patent (CN 104307159 A) is characterized in that the serving device includes two rollers, which are respectively arranged on the upper and lower sides of the horizontal channel, and the upper and lower sides of the horizontal channel are respectively There are slots, and the part of the rollers is embedded in the slots. The two rollers launch the tennis balls by friction. Although the balls can be launched smoothly in this way, the surface of the tennis balls will be scratched if the tennis balls are launched by the rollers for a long time. Wear and tear, reducing the quality and lifespan of tennis balls, thus increasing the cost of practicing tennis

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