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Wind spring type tennis ejecting apparatus

A kind of ejection device and clockwork technology, which is applied in the direction of sports accessories, etc., can solve the problems of equipment idleness and waste, and achieve the effect of increasing concentration, increasing practice intensity and avoiding mistakes

Inactive Publication Date: 2008-12-10
黄剑
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Personal purchases are still relatively small, because the equipment will be idle after mastering the technical movements, and it is obviously a bit wasteful after a one-time investment
If it is purchased collectively, it will bring a lot of trouble and inconvenience to use and manage the expensive equipment

Method used

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  • Wind spring type tennis ejecting apparatus
  • Wind spring type tennis ejecting apparatus
  • Wind spring type tennis ejecting apparatus

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Experimental program
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Embodiment Construction

[0014] Combine below Figure 1-Figure 2 It is a specific structural form of the present invention. It comprises a temporary storage cabin 1 for tennis balls, an ejection cabin 2, and a spring transmission mechanism. One end of the tennis temporary storage cabin 1 is provided with a tennis inlet 3, and the other end is provided with a ball sending device 4, which is a spring assembly. The above-mentioned ejection chamber 2 is composed of a fixed sleeve 5 sealed at the bottom and a movable part 6 sleeved in the fixed sleeve and movable in the fixed sleeve; the bottom of the fixed sleeve 5 can be rotated to adjust the stretching force of the spring. The movable part is equipped with a spring cover 7 and a shifting block 8, and a spring 9 is arranged between the spring cover of the movable part and the bottom of the fixed sleeve, and the ejection chamber is divided into two parts, the spring cavity 10 and the ejection cavity 11, by the spring cover. , the upper part of the eject...

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PUM

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Abstract

A clockwork-spring-type tennis ejection device relates to the technical field of the ejection device for practicing tennis. The device comprises a temporary storage cabin for tennis ball (1), an ejection cabin (2) and a clockwork spring transmission mechanism; wherein, a tennis inlet is arranged at (3)one end of the temporary storage cabin for tennis ball (1) and a ball delivery device (4) is arranged at the other end ;of the temporary storage cabin for tennis ball; the ejection cabin (2) consists of a fixed sleeve and a movable part (6); a spring (9) is arranged between the movable part and the bottom of the fixed sleeve; the fixed sleeve is provided with two side openings, and one is an inlet (13) for ejection cavity, through which the temporary storage cabin for tennis ball is communicated with the ejection cavity; in general conditions, the inlet for ejection cavity is sealed by the movable part; when the movable part slides downwards, the spring is depressed, the inlet for ejection cavity is temporarily opened and the tennis ball is delivered into the ejection cavity by the ball delivery device; afterwards, the tennis is ejected through an outlet for ejection cavity depending upon the recovery force of the spring. The device is characterized by strong pertinence, simple structure, easy operation and low price.

Description

Technical field [0001] The invention relates to a spring-type tennis ejection device, which belongs to the field of sporting goods, in particular to an ejection device for tennis practice. Background technique [0002] The present invention is a tennis ball ejection device, and the prior art closest to the present invention has the following types: multifunctional tennis ball machine (patent number: 95205606.2), tennis throwing device (patent number: 96222872.9), a tennis practice Device (patent number: 96215081.9), tennis sparring device (patent number: 96241893.5), tennis training device (patent number: 97203045.X), single-person self-entertainment netless tennis (patent number: 200320104620.7), tennis ball throwing training device ( Patent No.: 200310106676.0), Electronic Tennis Exerciser (Patent No.: 200510023889.6), Tennis Serving Machine for Training (Patent No.: 200620090512.2), Energy Storage Serving Machine (Patent No.: 200620097178.3), Continuous High Speed ​​Rebou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A63B69/40A63B69/38
Inventor 黄剑
Owner 黄剑
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