SF6 gas density relay with gas supplementing function

The utility model relates to the technical field of instruments and meters, in particular to an SF6 gas density relay with a gas supplementing function, which comprises a relay, two sides of the relay are respectively provided with a connecting pipe and a signal line, the connecting pipe comprises a first connecting pipe, a second connecting pipe and a gas supplementing pipe, and the gas supplementing pipe is sleeved on one side of the first connecting pipe and one side of the second connecting pipe through threads. The stabilizing assembly is arranged on one side of the air supplementing pipe, the air supplementing pipe is in threaded connection with the connecting pipe of the relay, when air supplementing operation needs to be carried out on the relay connecting device, the air supplementing assembly connected with the air supplementing pipe is used for remotely carrying out jacking air supplementing on the ejector rod, operation is easy and convenient, and practicability is high. And the stabilizer bar is