Ultrasonic liquid level meter with protection effect

The invention relates to the field of liquid level meters, in particular to an ultrasonic liquid level meter with a protection effect, which comprises an upper shell arranged above a lower shell, two groups of first mounting blocks and two groups of second mounting blocks, first buffer plates are arranged on the two sides of the two groups of first mounting blocks, and second buffer plates are arranged on the two sides of the two groups of second mounting blocks; a first compression spring and a second compression spring are respectively arranged on the inner sides of the first mounting block and the second mounting block; the ultrasonic liquid level meter can be prevented from being directly collided with an external object to be damaged in the moving or using process, the good buffering protection effect is achieved, the service life of devices in the ultrasonic liquid level meter is prolonged, height fine adjustment can be conducted on a detection probe of the ultrasonic liquid level meter, the influence o