Cable distribution box convenient to mount and dismount

The utility model discloses a cable distribution box convenient to mount and dismount, which belongs to the technical field of cable distribution boxes and comprises a box body, mounting plates are fixedly connected in the box body, a sliding rod is fixedly connected between the mounting plates, a lifting plate is slidably connected to the surface of the sliding rod, a motor is fixedly connected to the top of the lifting plate, and the motor is fixedly connected to the bottom of the lifting plate. A threaded column is fixedly connected to the top of an output shaft of the motor, a placement plate is arranged at the top of the mounting plate, and the threaded column is in threaded connection in the mounting plate and the placement plate; through an air conveying pump, an air filter and an air extracting pump, the air conveying pump works to convey air into the box body, and meanwhile, the air extracting pump works to extract the air in the box body, so that it is ensured that the interior of the box body is in