A kind of high safety self-destruction syringe easy to assembly,Its system structure: housing,Core bar,Piston,Conehead component,Injection needle and protective case,Injection needle is fixed in conehead element,Protection shroud is flexibly connected above injection needle with the needle stand of injection needle,Conehead element is fixed in the inner cavity of housing front end,Piston is mounted on core bar,The main part of core bar is sleeved in housing,The injection needle that the front end of core bar is installed in injection in insertion conehead component and in energy band mantle head assembly is retracted in housing together,Wherein the conehead component by screw thread conehead,Sealing ring,Transition piece and hollow wedge composition,Simple by what this authoring structure,The mold accuracy of manufacture is low,It is easy to process,It is more suitable for automatic assembling,Just what produces the control of stay in grade in enormous quantities and meets market sales volume demand,Safe self-destruction performance is avoided simultaneously, and the safe infirm risk of self-destruction performance is caused accidentally or using careless manipulation by what assembly.一種裝配方便的高安全自毀式注射器，其係架構：外套、芯杆、活塞、錐頭組件、注射針和保護套，注射針安裝固定在錐頭元件中，保護套罩裝在注射針上方與注射針之針座活動連接，錐頭元件安裝固定在外套前端的內腔中，活塞安裝在芯杆上，芯杆的主體部分套裝在外套中，芯杆的前端在注射時插入錐頭組件中並能帶動錐頭組件上安裝的注射針一起退回外套中，其中所述的錐頭組件由螺紋錐頭、密封圈、過渡件和空心楔組成，由於本創作結構簡單、模具製造精度低，加工方便，更適合自動化組裝，便於大批量生產品質穩定的控制及滿足市場銷量需求，同時避免了安全自毀性能由於裝配不慎或使用操作不慎引起安全自毀性能不生效的風險。
