It snatchs with reversible jack catch frock to turn to quick -witted adjusting nut

The utility model provides an it snatchs with reversible jack catch frock to turn to quick -witted adjusting nut, includes the support arm, the both ends of support arm are provided with first jack catch and second jack catch respectively, first jack catch and second jack catch are packing into respectively to the both ends of support arm of slidingtype to cup jointing with quick SJH and locking it at a jack catch, another locates the jack catch then as the work end. First jack catch and second jack catch quick SJH unblock, exchange behind the position both ends of the support arm of packing into respectively of slidingtype again with first jack catch and second jack catch when remodeling, cup joint once more and lock quick SJH, remodel fast. The utility model discloses an it snatchs withreversible jack catch frock to turn to quick -witted adjusting nut, its design is for the front and back two sides, and is more convenient when remodeling to simple structure cooperates quick SJH to obtain the effect that rap