Puncture-proof protection device

The utility model relates to a stab-proof protection device which is provided with an inner bracket assembly, a spring assembly is sleeved on the inner bracket assembly, an outer bracket assembly is movably sleeved outside the inner bracket assembly, a placing space is arranged in the inner bracket assembly, the inner bracket assembly is provided with an inner bracket body, and one end of the inner bracket body extends to form a plurality of connecting long arms. A guiding limiting assembly is arranged on the connecting long arm, an avoiding mechanism is distributed on the inner bracket body, a positioning assembly is arranged at the other end of the inner bracket body, a limiting groove is formed in the corresponding position of the outer bracket assembly, and when the inner bracket body is connected with the outer bracket assembly, the positioning assembly is embedded into the limiting groove. An auxiliary limiting assembly is further arranged at the other end of the inner bracket body. Therefore, the Z-sha