Medicine injector for treating monkey pox

The utility model discloses a medicine injector for treating monkey pox, which aims to solve the problems of incompact structure and large occupied space in the prior art and comprises a needle tube, a piston is slidably arranged in the needle tube, a piston rod is fixedly arranged on the piston, a first through hole is arranged on the needle tube, and a plunger is hinged on the needle tube. A second through hole is formed in the plunger, a needle communicated with the second through hole is fixedly arranged on the plunger, if the plunger rotates on the needle tube, the needle can be folded or unfolded on the needle tube, if the needle is unfolded on the needle tube, the second through hole is communicated with the first through hole, and if the needle is folded on the needle tube, the plunger blocks the first through hole. 本实用新型公开了一种用于治疗猴痘的药物注射器，旨在克服现有技术中结构不紧凑和占用空间大的问题，它包括针管，针管内可滑动地设置有活塞，活塞上固定设置有活塞杆，针管上开设有第一通孔，针管上铰接有柱塞，柱塞上开设有第二通孔，柱塞上固定设置有连通第二通孔的针头，若柱塞在针管上转动时，针头可折叠或展开在针管上，若针头展开在针管上时，第二通孔连通在第一通孔上，若针头折叠在针管上时，柱塞