Rotatable ultrasonic module

The invention discloses a rotatable ultrasonic module. A circuit board of the rotatable ultrasonic module is connected with a rotating shaft through a main bayonet. The circuit board can rotate around the rotating shaft under the action of external force after being connected with the rotating shaft. A base is a cuboid with a smooth periphery, wherein a threaded hole is formed in the symcenter of the bottom of the base, the base is connected with the rotating shaft through a base bayonet, and the base can rotate around the rotating shaft under the action of the external force after being connected with the rotating shaft. Once the external force disappears, the rotating shaft is tightly clamped, and the relative positions of the circuit board and the base cannot be changed any more. According to the rotatable ultrasonic module, a rotating joint which can tightly clamp the ultrasonic module is connected with the ultrasonic module, so that the ultrasonic module is located within a certain spatial range; the problem that a traditional ultrasonic module is not provided with a rotating joint or the traditional ultrasonic module is provided with a rotating joint but the rotating joint cannot make the traditional ultrasonic module be fixed to a certain position after the traditional ultrasonic module rotates is solved; using efficiency and practicability are improved.