Immune biosensor with protective structure

The utility model discloses an immune biosensor with a protective structure, which belongs to the technical field of sensors and comprises a protective shell, a port is arranged on one side of the protective shell, fixing rods are uniformly arranged on the inner bottom wall of the protective shell, a protective layer is arranged on the outer sides of the fixing rods, a first magnetic block is fixed on the top of the protective layer, and a sleeve is sleeved on the outer side of the protective layer. A second magnetic block is fixed to the inner top wall of the sleeve, a fixing plate is fixed to the top of the second magnetic block, and a sliding groove is formed in the top of the fixing plate. According to the immune biosensor, damping and buffering are conducted through the counter-acting force of the second magnetic block in the sleeve and the first magnetic block on the top of the fixing rod, meanwhile, the protective layer on the outer side of the fixing rod has a certain damping effect, the protective ef