Feather ball match sideline drop point penalty device

Abstract

The invention discloses a feather ball match sideline drop point penalty device which comprises a display strip body, the top of the display strip body is coated with a layer of silver nitrate coating agent, a fixing hole is formed in the position, close to one corner, of the top of the display strip body, and a fixing sleeve is arranged in the fixing hole. A threaded column is in threaded connection with the position, close to the edge of the top, of the inner wall of the fixing sleeve, a fixing column is rotationally connected to the top of the threaded column through a bearing, a mounting base is fixed to the top of the fixing column, and a mounting groove is formed in the top of the mounting base. The problems that when a shuttlecock falls on a sideline in a game, the situation of score judgment exists when the shuttlecock falls on the sideline, however, due to the fact that the falling speed of the shuttlecock is high and the shuttlecock can not be well observed by naked eyes, the shuttlecock is very easy to dispute during judgment, and the judgment of referees is difficult are solved.

Description

technical field [0001] The invention relates to the technical field of badminton, in particular to a penalty device for sideline landing in a badminton game. Background technique [0002] Badminton is an indoor sport in which a long-handled netted racket is used to hit a small ball made of feathers and cork through a net. The badminton game is played on a rectangular field, separated by a net in the middle of the field. The two sides use various techniques and tactics such as serving, hitting and moving to hit the ball back and forth on the net so as not to make the ball fall within the effective area of ​​their own side, or Make the opponent miss the ball to win. [0003] At present, in badminton games, due to the need to use sidelines to divide the field, when the shuttlecock falls on the sideline during the game, there will be a situation to determine the score. However, due to the fast falling speed of the shuttlecock, it cannot be observed with the naked eye. Therefore...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a badminton game sideline fall point judgment device to solve the problem that in badminton games, due to the need to use sidelines to divide the field, when the shuttlecock falls on the sideline during the game, there will be a situation in which the score is judged, but Due to the fast falling speed of the badminton, it cannot be observed with the naked eye very well, so it is easy to be very controversial when judging, which brings difficult problems to the referees.

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