Double security cover

Double security cover (CN2446077Y)

The double security type bung cover is composed of a cover body and an unsealing handle. The structural feature is that an inward recessed hole is arranged in the center of the top of the cover body, a security film is arranged at the bottom of the recessed hole, a disassembled security cover is arranged on the top, and an automatic adjustment leakproof ring is arranged on the inner circumference of the cover body. At the upper end of the leak-proof ring, a baffle body is provided, and at the lower end, there is a disengagement-prevention wire. The double security-type bung cover has double anti-counterfeit and leak-proof functions, and can be used by non-unified model bungs produced by different manufacturers.