Washing device for filter cartridge of central air conditioner

The invention discloses a washing device for a filter cartridge of a central air conditioner. The washing device comprises a washing tank, a plurality of filter cartridge supporting devices which are arranged in the washing tank in parallel, a power device arranged at one side of the washing tank, and a transmission device which is in transmission connection with the power device and the plurality of filter cartridge supporting devices; each of the plurality of filter cartridge supporting devices comprises a bidirectional screw rod, supporting rods, pushing rods, fixed blocks, movable blocks, supporting seats and a worm wheel; the transmission device is a worm rod; the worm rod is in transmission connection with the worm wheel in each filter cartridge supporting device; the worm rod is in transmission connection with an output end of the power device. According to the device disclosed by the invention, the worm rod is driven through the power device and the worm wheels are driven through the worm rod; the wor