PORTABLE SINGLE-PHASE AIR BYPASS SWITCH FOR LIVE LINE WORK IN DISTRIBUTION NETWORK

摘要

A portable single-phase air bypass switch for live line work in a distribution network, comprising a shell assembly (1), a locating assembly (2), a conductive loop assembly (3), a clutch assembly (4), a switch-on assembly (5) and a switch-off assembly (6). The shell assembly (1) comprises a main sleeve barrel (11), an insulating sleeve pipe (12), a flange sleeve (13) and a bottom cover (14); the locating assembly (2) comprises a locating nut (21), a locating frame (22) and a locating column (23); the conductive loop assembly (3) comprises a conductive end cover (31), an upper conductive rod (32), a pressing sleeve (33), a connecting nut (34), a conductive sleeve pipe (35), a fixed contact (36), a moving contact (37) and a lower conductive rod (38); the clutch assembly (4) comprises a clutch (41), a clutching ring (42) and a clutching sleeve pipe (43); the switch-on assembly (5) comprises a switch-on energy-storage draw rod (51), a switch-on energy-storage draw ring (52), a switch-on spring (53), a switch-on locating pin (54), a switch-on release draw ring (55) and an inner sleeve pipe (56); and the switch-off assembly (6) comprises a small shaft (61), a switch-off spring (62), a stop block (63), a switch-off energy-storage shaft (64), a connecting rod (65), a switch-off energy-storage pressing head (66), a switch-off locating pin (67) and a switch-off release draw ring (68). The present invention integrates a quick switch-off function and a quick switch-on function into a whole, thereby solving the technical problem of instantaneous arc extinguishing in the operation of an overhead line, a power cable and a hybrid line bypass in a distribution network, so that the coverage rate of live line work is increased, and the security is good.