This creation is a kind of related improved structure of fish news buoy cover of what, it particularly relates on a kind of lock tug what buoy tube, connection buoy tube internal receipt fish news instrument is used, and detect fish news buoy tube can, transmit fish news signal to fishing boat, so that fishing operation is used. It is mainly by center barrel mast,Signal turn-button,Frequency form,Signal wire hole seat and fixing seat are formed,There is screw thread to consolidate for antenna spiral shell for the center barrel mast upper end system,Side is then extended with ribs,The intensity of center barrel mast fixation can be increased； Signal turn-button is connected with the reception fish of buoy tube inside news instrument,Control the opening and closing of signal； Frequency form system is a circular through-hole,Top is covered with a magnifying glass,The frequency of observation buoy tube signal projector is used,It is quite practical and convenient； And signal wire is penetrated cover Hou and is consolidated by inside with cap nut spiral shell by signal wire hole seat system,It can avoid the risk stolen by directly destruction Hou,For quite practical and progress person.本創作係有關於一種魚訊浮標筒蓋之構造改良，特別是指一種鎖掣於浮標筒之上方，藉以連接浮標筒內部接收魚訊儀器，而使魚訊浮標筒可進行偵測、傳遞魚訊信號至漁船，以便漁撈作業之用。其主要係由中心筒柱、信號轉鈕、頻率視窗、信號線孔座及固定座所組成，該中心筒柱上端係具有螺紋可供天線螺固，側邊則延伸有加強肋，可增加中心筒柱固定之強度；信號轉鈕與浮標筒內部之接收魚訊儀器相連接，控制信號之啟閉；頻率視窗係為一圓形透孔，上方罩有一放大鏡，藉以觀察浮標筒信號發射器之頻率，相當實用且便利；而信號線孔座係將信號線穿入筒蓋後由內部以螺絲帽螺固，可避免遭到直接破壞後失竊之風險，為相當實用且進步者。
