Elevator carriage quality analyzing and testing device

The utility model provides an elevator carriage quality analyzing and testing device which comprises a PCB main board, a sound processing device and a power source, the PCB main board and the sound processing device are both electrically connected with the power source, the PCB main board is electrically connected with the sound processing device, the elevator carriage quality analyzing and testing device further comprises a sound noise reduction orienting device, a loudspeaker and a sound collecting device, the sound noise reduction orienting device is a square box body, and the loudspeaker is electrically connected with the sound collecting device. One end is provided with a sound outlet, and the inner wall and the inner wall of the side surface of the sound box are arranged to be wave-shaped; the loudspeaker is arranged in the cavity of the sound noise reduction orienting device, and the sound outlet end of the loudspeaker is opposite to the sound outlet and is relatively fixed; and the sound acquisition d