Novel positioning and inflating mechanism for explosion-proof valve of power battery PACK box body

The utility model provides a novel power battery PACK box body anti-explosion valve positioning and inflating mechanism which comprises a portal frame, a translation lifting mechanism used for being in butt joint with a power battery is arranged on the portal frame, and a variable-pitch pressing mechanism used for achieving the anti-explosion valve positioning and pressing effect is arranged on the lower surface of the portal frame. The variable-pitch pressing mechanism is arranged on the base, the variable-pitch pressing mechanism is connected with the translation lifting mechanism, the left end and the right end of the variable-pitch pressing mechanism are each provided with a floating positioning mechanism used for achieving explosion-proof valve positioning and floating deviation correction, and each floating positioning mechanism is provided with an explosion-proof valve suction opening mechanism used for opening an explosion-proof valve cover plate in a suction mode. The air tightness detection device i