Connecting assembly of trepanning needle head and injector

The utility model discloses a connecting assembly for a perforated needle head and an injector, and particularly relates to the technical field of medical instruments, the connecting assembly comprises a perforated needle tube connector main body, threads are arranged on the outer side of the perforated needle tube connector main body, and a connecting sealing mechanism is arranged on one side of the perforated needle tube connector main body; the connecting and sealing mechanism comprises a connecting pipe, one end of the connecting pipe is fixedly connected with one side of the perforating needle pipe connector body and fixedly connected with a needle tube connecting pipe, the needle tube connecting pipe is sleeved with a sealing gasket, one side of the sealing gasket is fixedly connected with a moving rod, and an inner cavity is formed in the connecting pipe. The connection sealing mechanism is arranged, the connection assembly is connected with the injector in a threaded connection mode, the disassembly a