Novel sulfur hexafluoride gas alarm and locking loop

The utility model provides a novel sulfur hexafluoride gas alarm and locking loop. The novel sulfur hexafluoride gas alarm and locking loop comprises a density relay, a signal lamp and an intermediate relay, the device input pin is connected with one end of the alarm node of the density relay, and the other end of the alarm node is connected with the positive end of the DC power supply. One end of the relay coil is connected with the device output pin, and the other end is connected with the negative end of the direct-current power supply; and the other end of the signal lamp is connected with the negative end of the direct-current power supply. The high-voltage switch sulfur hexafluoride alarm and locking loop device module has the beneficial effects that the high-voltage switch sulfur hexafluoride alarm and locking loop device module is simple, one module can realize independent air chamber and split-phase air chamber alarm and combined alarm, all elements are integrated together, the cost is low, the manuf