Anti-leakage SF6 gas density relay

An anti-leakage SF6 gas density relay comprises a stainless steel shell body, and a pointer, an amplifying mechanism, a C-shaped pipe and a plastic shell which are arranged in the interior of the stainless steel shell body, wherein the plastic shell is used for accommodating silicone oil, the lower end of the stainless steel shell body is provided with a gas inlet joint, one end of the C-shaped pipe is connected with the gas inlet joint, the other end is connected with the amplifying mechanism through a connecting rod, the pointer is arranged on a shaft of the amplifying mechanism, a notch is formed in the upper part of the plastic shell, a wire outgoing hole is formed in the stainless steel shell body at a position higher than the oil level of the silicone oil inside the plastic shell, the outer wall of the stainless steel shell body is fixedly connected with a connecting block at a position corresponding to the wire outgoing hole, a lead leading-out hole communicated with the wire outgoing hole is formed in the connecting block, and the lead leading-out hole is in an inverted Z shape. According to the anti-leakage SF6 gas density relay, the connecting block is welded on the outer wall of the stainless steel shell body, the leakage of silicone oil caused by the aging of a rubber sealing ring is avoided, the influence of severe environmental vibration and medium pressure fluctuation during the operation of the relay is avoided, and the normal operation of high-voltage switching equipment is ensured.