Table tennis ball service machine

Abstract

A table tennis ball service machine includes a ball-collecting unit, a control valve and a ball service mechanism. The ball-collecting unit has a ball-collecting groove connected with ping pong table and having its rear side provided with a blocking net and its lower side connected with a ball-collecting tube and a ball-feeding tube. The control valve is positioned at the lower end of the ball-collecting tube for controlling dropping of balls. The ball service mechanism connected with the upper side of the ball-feeding tube includes a ball service tube, a blower, a support frame, a universal joint, a cam and a motor. The ball serving tube has its outer end extending through the blocking net and formed with an outlet and its rear side formed with an inlet communicating with the ball-feeding tube. Thus, the ball serving speed and the angle can be controlled.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] This invention relates to a table tennis ball service machine, particularly to one able to control ball serving speeds and angles. [0003] 2. Description of the Prior Art [0004] Taking exercises can not only promote health but also help alleviate mental tension and unhappiness. Table tennis is an activity involving a man's whole body. Playing table tennis is able to train the ability of thinking and judgment and the speed of reflexing action after thinking. In addition, playing table tennis is also able to train the reaction of the sense system and the function of the skeleton and the muscle system, strengthening the function of both the circulatory system and the respiration system. Since there are a variety of methods and tactics in playing table tennis; therefore, to play table tennis well and to be superior to others, a player has to practice the skills constantly. The technique of playing table tennis, such as s...

AI Technical Summary

Benefits of technology

[0006] The table tennis ball service machine in the present invention includes a ball-collecting unit, a control valve and a ball service mechanism. The ball-collecting unit is provided with a ball-collecting groove connected with the table. The ball-collecting groove has its rear side provided with a blocking net and its lower end connected with a ball-collecting tube having its lower end connected with a ball-feeding tube having its starting end formed with a suction opening. The control valve positioned at the lower end of the ball-collecting tube is provided with a telescopic rod having one end pivotally connected with a control member, which is pivotally combined with a positioning base by a pivot. The control member has the other end hooked with a spring, which has the other end hooked with the positioning base. The ball service mechanism assembled at the upper end of the ball-feeding tube consists of a ball service tube, a blower, a support frame, a universal rotary member, a cam and a motor. The ball service tube has its outer end inserted through the blocking net and formed with an outlet and its rear end formed with an inlet connected with the ball-feeding tube.

Problems solved by technology

However, a conventional table tennis ball service apparatus can only serve balls at a horizontal angle, impossible to serve balls in multi-directions and at different speeds.

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