Rocker handle device for low-pressure maintenance of aircraft engine

The embodiment of the invention discloses a rocker handle device for low-pressure maintenance of an aircraft engine. The rocker handle device includes a rocking handle assembly, a low-pressure rod andfixed frame assembly and a reverse coupling assembly; the rocking handle assembly includes a rocking bar, a handle assembly and a turnbuckle, the low-pressure rod and fixed frame assembly includes alow-pressure rod shaft body assembly, a fixed frame assembly sleeving outside the low-pressure rod shaft body assembly in a nested mode and a rocking handle adapter assembly connected with the low-pressure rod shaft body assembly, and the rocking handle adapter assembly is connected with the turnbuckle in a matched mode; the fixed frame assembly includes a spherical locking kit sleeving outside the low-pressure rod shaft body assembly in a nested mode and a fixing kit installed on a round rod of the spherical locking kit; and the reverse coupling assembly includes a first coupling, a cardan shaft assembly and a second