The mosquito killing device is formed by an upper suspension rod tube integrated, a lower suspension tube integration, a support tube integration, an electric shock prevention tension spring, a protective cover plate and an electric unit which are portable and retractable adjustable length； It can quickly adjust the wide-range spacing, and is fixed in the existing equipment frame by the fine adjustment of the compression spring inside the tube, which is suitable for the current specifications of various windows (doors)； the mosquito-repellent electrode is composed of an anti-electric shock stretching spring, the spring Only two exposed electrodes of about 2 mm in length were left on each side of the circumference of each circle, and the other were coated with insulating varnish. The device can be protected from electric shock caused by accidental contact by adjusting the thickness of the spring insulating coating, the coil diameter, the DC voltage and the spacing of the springs. The inner and outer telescopic tube assembly and the anti-shock electric expansion spring are assembled in the suspension tube using plastic fasteners, and the components can be quickly disassembled and joined.本滅蚊裝置，由可攜帶及可伸縮調節長度的上懸吊桿管集成、下懸吊管集成、支撐管集成、防觸電拉伸彈簧、防護蓋板及電氣單元所組立而成；各管件可快速進行大範圍間距的調整，並靠管內壓縮彈簧的微調固定於即有設施框架內，適用於目前各種窗(門)的規格尺寸；滅蚊電極由防觸電拉伸彈簧構成，該彈簧每圈圓周兩側只留兩處長度約2mm裸露電極，其他均塗覆絕緣漆。本裝置可經由彈簧絕緣塗層厚度、彈簧圈徑、直流電壓及各彈簧間距的調整，防止人員因意外碰觸所造成的觸電。各內外伸縮管組裝及防觸電伸縮彈簧組裝於懸吊管均使用塑膠扣件，元件之間能快速拆卸及接合。
