Device for collecting and serving tennis ball

Abstract

The invention discloses a device for collecting and serving a tennis ball. The device comprises a cart rack, cart wheels and a handle, and further comprises a ball collecting device, a ball conveyingdevice and a ball serving device, and the ball serving device comprises a frequency adjusting device and a rotary ball throwing device; the rotary ball throwing device comprises a fixed disc, a rotarycylinder located in the fixed disc and a magnetic induction brake for controlling flying of the tennis ball according to the rotary speed; the fixed disc comprises a top plate, a bottom plate, a sideplate which is provided with a gap and surrounds the portion between the top plate and the bottom plate and a movable plate which is arranged at the gap and connected with the magnetic induction brake, and the top plate is provided with a first ball hole in butt joint with a two-way ball cone; one end of the rotary cylinder is provided with a second ball hole in butt joint with the first ball hole and fixed to a third motor penetrating through the bottom plate, and the other end of the rotary cylinder is provided with a magnet matched with the magnetic induction brake. The device is applicable to different ball serving frequencies, the ball cannot get stuck, a path of the ball has a camber line in the horizontal direction, and the ball can veer.

Description

technical field [0001] The invention relates to the field of sports training equipment, in particular to a tennis receiving and receiving device. Background technique [0002] Tennis is one of the more common outdoor sports at present. Tennis players usually practice with others during training. Frequent bending over to pick up the ball during the practice often consumes a lot of physical strength of the player, and the training time is also easily restricted by others. [0003] Document CN 102145223A discloses an automatic tennis transceiver. The ball receiving and receiving device controls the frequency of the ball through a perforated partition connected to the motor, and uses two counter-rotating extrusion wheels to squeeze and launch the tennis ball. When the serving frequency becomes faster, the device is easy to jam the ball when controlling the serving frequency. At the same time, the types of serving are topspin, backspin and flat ball. The ball path lacks changes ...

AI Technical Summary

Problems solved by technology

Tennis players usually practice with others during training. Frequent bending to pick up the ball during practice often consumes a lot of physical strength of the player, and the training time is also easily restricted by others

[0003] Document CN 102145223A discloses an automatic tennis transceiver. The ball receiving and receiving device controls the frequency of the ball through a perforated partition connected to the motor, and uses two counter-rotating extrusion wheels to squeeze and launch the tennis ball. When the serving frequency becomes faster, the device is prone to jam the ball when controlling the serving frequency. At the same time, the types of serving are topspin, backspin and flat ball. The ball path lacks changes and is easy to be mastered by the players, which will affect the training effect.

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