Nozzle fault detection device

The utility model provides a nozzle fault detection device, which comprises a host, a piezoelectric unit, a vibration platform and a vibration data instrument, the host, the piezoelectric unit and the vibration data instrument are electrically connected with one another, the piezoelectric unit is arranged on the vibration platform, a pressure point unit is provided with a pressure point driver, the host sends a driving signal to the piezoelectric unit according to a preset frequency, and the piezoelectric unit is connected with the vibration data instrument. The piezoelectric unit sends a driving signal to the piezoelectric driver, the piezoelectric driver provides vibration power for the detected spray head and drives the spray head to vibrate, the vibration platform transmits vibration data to the vibration data instrument, and the vibration data instrument sends the vibration frequency to the host to compare whether the mark is normal or not. According to the utility model, the problems of low efficiency a