Displacement sensor fixing device suitable for dynamic test of shock absorber

A displacement sensor fixing device suitable for a dynamic test of a shock absorber comprises a hanging ring fixing support, straps and a locking mechanism, a connecting screw rod is fixedly arranged on the outer side surface of the hanging ring fixing support and used for assembling a hanging ring of a displacement sensor, the two sides of the hanging ring fixing support are further hinged to the straps respectively, and the locking mechanism is arranged on the hanging ring fixing support. The end, away from the hanging ring fixing support, of each strap is a locking end, the two straps correspondingly surround the outer surface wall of the shock absorber, and closed rings of the two locking ends are correspondingly locked through a locking mechanism. The fixing device can adapt to the situation that the diameter of the shock absorber is within a certain change range, and is matched with straps of different specifications so as to cover shock absorbers of various diameter specifications. When a shock absorbe