Floating sealing mechanism and sealing testing fixture

The invention discloses a floating sealing mechanism and a sealing testing fixture. The floating sealing mechanism comprises a substrate, a sealing ring, a bulb floating rod and an elastic part; a floating space is formed in the substrate, and a containing groove is formed in the outer side of the substrate; the sealing ring is fixedly installed in the containing groove of the substrate; the bulbfloating rod comprises a bulb and a floating rod, and the bulb is installed in the floating space of the substrate in a floating mode; the elastic part is arranged on the floating rod in a sleeving mode; and in the floating sealing mechanism, the compression amount of the elastic part is controlled through the compression force generated in the sealing process, and the bulb freely floats in the floating space. According to the floating sealing mechanism, independent sealing of a single connector port can be achieved, the compression force can be independently adjusted, and the characteristic that the dimensional toler