Lightning arrester

The utility model provides a lightning arrester. The lightning arrester comprises a switch cabinet, a placement box, a sliding rod, a limiting rod, a clamping mechanism and a lightning rod, a placement box is arranged on the side surface of the switch cabinet; the sliding rod is arranged in the placement box in a liftable manner; limiting holes are formed in the side faces of the sliding rods, slidable limiting rods are arranged on the side faces of the containing boxes, and the limiting rods can be inserted into the limiting holes. A clamping part is arranged at the top end of the sliding rod and can clamp a lightning rod. According to the lightning arrester, the first sliding rod can be prevented from being detached during detachment, and the lightning rod is more convenient to detach and install. 本实用新型提供了一种避雷装置，包括开关柜、放置盒、滑杆、限位杆、夹持机构和避雷针；开关柜侧面设有放置盒，滑杆可升降地设于放置盒内；滑杆的侧面设有限位孔，放置盒侧面设有可滑动的限位杆，限位杆能插入限位孔内；滑杆顶端设有夹持部件，夹持部件能夹持避雷针。上述的避雷装置能避免在进行拆卸时将滑杆一通拆下，更便于拆卸与安装避雷针。