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Tennis ball launcher

A transmitter and tennis ball technology, applied to rackets, sports accessories, etc., can solve problems such as inapplicability, and achieve the effect of improving accuracy

Inactive Publication Date: 2021-01-19
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing tennis ball transmitters on the market use the random or fixed-point throwing method, which cannot adjust the tennis ball launch angle and launch speed according to the change of the angle and distance after the athlete's position moves, so it is mainly suitable for the athlete's fixed-point shooting. Daily training, not suitable for tennis games where players move frequently

Method used

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Embodiment Construction

[0016] An example of the present invention is figure 1 As shown, it includes the bottom rotating module and the launch module mounted on the bottom rotating module.

[0017] The bottom rotating module includes a vertical rotating shaft 1 and a second servo motor 11 driving the vertical rotating shaft 1 to rotate. The main shaft of the second servo motor 11 is provided with a driving gear 12 ; the vertical rotating shaft 1 is provided with a driven gear 13 meshing with the driving gear 12 .

[0018] Such as figure 2 , the launch module includes a bottom steel frame 2 connected to the vertical rotating shaft 1 and an upper steel frame 3 hinged above the bottom steel frame 2; the hinge shaft 4 of the bottom steel frame 2 and the upper steel frame 3 is a horizontal axis. The bottom steel frame 2 is provided with a ramp 5; the bottom end of the ramp 5 is provided with a telescopic device 6 that can expand and contract along the ramp 5, and the telescopic device 6 in this embodim...

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Abstract

The invention discloses a tennis ball launcher. The tennis ball launcher comprises a bottom rotating module and a launching module installed on the bottom rotating module. The bottom rotating module comprises a vertical rotating shaft; the launching module comprises a bottom steel frame connected with the vertical rotating shaft and an upper steel frame hinged to the upper portion of the bottom steel frame. A hinge shaft of the bottom steel frame and the upper steel frame is a horizontal shaft; a ramp is arranged on the bottom steel frame; a telescopic device capable of extending and retracting along the ramp is arranged at the bottom end of the ramp; two parallel rollers are arranged on the upper steel frame; the distance between the two rollers is not smaller than the diameter of a tennis ball; the two rollers are symmetrically arranged along a vertical plane, and the telescopic device is located on the symmetrical plane of the two rollers. The top end of the ramp is connected with the two rollers. The vertical angle and the horizontal angle of launching can be adjusted according to the change of the position of an athlete, the launching speed is adjusted, and the accuracy of tennis landing is improved.

Description

technical field [0001] The invention relates to the technical field of sports training auxiliary equipment, in particular to a tennis ball transmitter. Background technique [0002] The tennis ball transmitter is a device that automatically launches the tennis ball to the vicinity of the athlete, so that the athlete can easily receive the tennis ball and put it into training and competition. At present, the existing tennis ball transmitters on the market use the random or fixed-point throwing method, which cannot adjust the tennis ball launch angle and launch speed according to the change of the angle and distance after the athlete's position moves, so it is mainly suitable for the athlete's fixed-point shooting. Daily training, not suitable for tennis games where players move frequently. Contents of the invention [0003] In order to solve the above problems, the present invention proposes a tennis ball transmitter, which can adjust the vertical angle and horizontal angl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A63B69/40
CPCA63B69/40A63B2225/09A63B2102/02
Inventor 宦海祥冒加强殷慧泽冒佳盛袁德涛
Owner YANCHENG INST OF TECH
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