Separable composite housed lightning arrester

The utility model provides a separable composite housed lightning arrester, which comprises a round sleeve and a separating mechanism, and is characterized in that the separating mechanism is fixed on the round sleeve by using a bolt, and then a pressing plate is pressed downwards, so that the upper end of the bolt enters the inside of a limiting groove; a pressing plate moves downwards to drive a moving plate to move downwards, so that a sliding plate can be driven to move downwards in a sliding groove, then an inclined surface of a clamping plate is driven to extrude an inclined surface of a clamping groove, the clamping plate is shrunk towards one side, and when the upper end of a bolt completely enters a limiting groove, a limiting spring resets to drive one end of the clamping plate to enter the clamping groove; according to the lightning arrester disclosed by the utility model, the sliding plate can limit the moved pressing plate, so that the bolt can be limited, the bolt can be further prevented from s