Machine head structure and high-pressure injector

• Main Authors: YANG SHOUWANG, LAI YONGXIN, WANG WUXING
• Format: Patent
• Language: Chinese; English
• Published: 28.12.2021
• 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 provides a machine head structure and a high-pressure injector, which are applied to the high-pressure injector. A first mounting hole is formed in the front end of the shell, a water baffle is arranged at the position of an inner port of the first mounting hole, the tail of the needle cylinder is connected into the first mounting hole in a sleeved mode, and a second mounting hole is formed in the surface of the water baffle; a rack is arranged in the shell, a push rod is arranged on the rack, a third mounting hole is formed in one end of the rack, and a rod body of the push rod is sleeved with the third mounting hole; a first sealing ring is arranged between the front face of the water baffle and the inner wall of the shell, and a second sealing ring is arranged on the edge of the inner end opening of the second mounting hole. And a driving structure. According to the technical scheme, the machine head structure ensures that when the push rod does linear reciprocating motion, the double-sea