A kind of Shui nationality improved structure of ultraviolet disinfection lamp having spiral channel,Include ultraviolet sterilization lamp body,Cover,Plastic shell main body,UV lamp watertight transparent pipe,It is formed with transparent spiral water channel,The ultraviolet germicidal lamp system is prolonged with UV discharge tube,The cover upper limb face can wear the ultraviolet sterilization lamp body,The plastic shell main body can accept the cover and be covered conjunction,The UV lamp watertight transparent pipe set the what plastic shell body interior and this can be worn what cover UV discharge tube completely entangle to avoid water flow bubble arrive,The transparent spiral water channel ring is set outside the UV lamp watertight transparent pipe periphery of the what plastic shell body interior,And generated by structure characteristic that the transparent spiral water channel ring is set and increase flow path to reach the design for extending UV sterilizing time,The plastic shell main body inner edge surface of arranging in pairs or groups is sticked and has the structure of reflecting piece,In order to what combination Hou in use,Water flows into the transparent spiral water channel through water inlet and connector and surround Hou,It is flowed out by water outlet and connector,And water flow or air will maximize its sterilizing function around the effect of Hou in the transparent spiral water channel.一種具螺旋水道之水族用紫外線殺菌燈改良結構，包括有紫外線殺菌燈體、蓋部、塑膠外殼主體、UV燈防水透明管，與透明螺旋水道所組成，該紫外線殺菌燈體係延具有UV放電管，該蓋部上緣面可穿套該紫外線殺菌燈體，該塑膠外殼主體可承接該蓋部加以蓋合，該UV燈防水透明管設於該塑膠外殼主體內部而可將該套穿於蓋部之UV放電管完整套住以避免水流泡到，該透明螺旋水道環設於該塑膠外殼主體內部之UV燈防水透明管周緣外，並藉由該透明螺旋水道環設的結構特徵而產生增加水流路徑以達到延長UV殺菌時間的設計，搭配該塑膠外殼主體內緣面貼設有反光片的結構，俾於結合後使用時，水經進水口與接頭流入該透明螺旋水道環繞後，由出水口與接頭流出，而水流或空氣在該透明螺旋水道環繞後的效果將最大化其殺菌功能。
