Assembly type high-precision quantitative injector

• Main Authors: ZHANG YONGJUN, FU JING, ZHENG YAXIN, LU PANZHONG, LUO XIANCHUN
• Format: Patent
• Language: Chinese; English
• Published: 26.08.2022
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

The utility model relates to the field of injectors, provides an assembly type high-precision quantitative injector, and aims to provide an injector capable of precisely controlling the dosage. According to the main scheme, the device comprises an outer sleeve (1) and a core rod (5) and is characterized in that a rod body of the core rod (5) is provided with core rod threads in the axial direction of the core rod, the device further comprises a support (2) and a nut clamp (4) fixed to the upper portion of the support (2), and a nut (3) is rotationally installed on the upper portion of the support (2) through the nut clamp (4), so that the nut rotates relative to the support (2) and the nut clamp (4). The core rod (5) penetrates through the limiting through hole in the support (2) to be in clearance fit with the limiting through hole, the core rod (5) cannot rotate in the limiting through hole, core rod threads are matched with the threaded through hole in the nut (3), and when the nut is rotated, the threaded