This creation system provides a kind of domestic animal epiornitic seedling injector structure,Its main body system is the body that a setting tool has inclined-plane to rest against platform,What rests against platform side and is equipped with a limit frid,And it is equipped with a needle outlet and a microswitch in limit frid predetermined position,And it is equipped with first dose of syringe that one can be shifted and second dose of syringe that one not can be shifted in internal body,First dose of syringe has syringe needle,And second dose of syringe does not set syringe needle then,But link the syringe needle base portion of first dose of syringe of what with a conduit,This first,With independent telescoping cylinder tug control, its feeding for pushing away agent bar is injected respectively in two doses of syringe Hou portions,And pull by the reply of its pedestal spring control its push away agent bar reset,Cooperation sets the setting of what engine body exterior dose switch bar,Enable it that domestic animal fowl neck setting what is being limited frid and is triggering its microswitch Hou,Start its Hou for moving forward and inserting the needle into domestic animal fowl neck of the telescoping cylinder stopper in first dose of syringe Hou portion according to the dosage of its setting,Continue again push away tug push away agent bar by medicament inject domestic animal carcass in,If having demand second dose of syringe Hou portion telescoping cylinder of sequential start push away tug its push away agent bar and by medicament through conduit from syringe needle injection domestic animal carcass,Reach domestic animal fowl vaccine injection operator.本創作係提供一種牲禽疫苗注射機結構，其主體係為一設具有斜面靠置檯的機體，於靠置檯一側設有一限位槽板，並在限位槽板預定位置設有一出針孔及一微動開關，而在機體內部設有一可移位之第一劑針筒及一不可移位之第二劑針筒，該第一劑針筒具有針頭，而第二劑針筒則未設針頭，而是以一導管連結於第一劑針筒的針頭基部，該第一、二劑針筒後部分別以獨立的伸縮缸掣控其推劑桿的進給注射，並藉其基座彈簧的回復而掣控其推劑桿復位，配合設於機體外部一劑量切換鈕的設定，使其得以在將牲禽頸部靠置於限位槽板並觸發其微動開關後，依其設定之劑量而啟動第一劑針筒後部之伸縮缸掣動其前移而將針頭插入牲禽頸部之後，再續行推掣推劑桿將藥劑注入牲禽體內，若有需求則依序啟動
