Branch off line of quick separating brake of explosion chamber constructs

The utility model provides a branch off line of quick separating brake of explosion chamber constructs belongs to circuit breaker technical field. It has solved current branch off line constituent floodgate not enough fast and stable's problem. The one's duty off line constructs including the casing, move end guide rod assembly and turning arm subassembly, the both ends movable support who moves end guide rod assembly is on the casing, and it can stretch out or the indentation at relative casing under the effect of turning arm subassembly to move end guide rod assembly, it still includes the elastic component to divide the off line to construct, the elastic component is in when stretching out the state and produces and make it have the effort to opposite direction movement tendency movingend guide rod assembly moving end guide rod assembly, the first end of elastic component links firmly on the casing, the second end of elastic component links firmly on moving end guide rod assembly.The one's duty off line co