Pressure-limiting check valve and fluid equipment

The utility model provides a pressure limiting check valve and fluid equipment, and relates to the field of check valves. The pressure-limiting check valve comprises a shell and a valve element, a fluid inlet and a fluid outlet are formed in the two ends of the shell respectively, the valve element is provided with a fixing piece, a connecting rod, an inlet plug, an outlet plug and an elastic piece, the fixing piece is fixedly connected with the shell, and the connecting rod is arranged along the axis of the shell and slidably connected to the fixing piece; the inlet plug and the outlet plug are arranged at the two ends of the connecting rod respectively and used for selectively plugging the fluid inlet and the fluid outlet, and the elastic piece is arranged between the inlet plug and the fixing piece. According to the pressure-limiting check valve, the fluid inlet of the pressure-limiting check valve can be opened or the fluid outlet of the pressure-limiting check valve can be closed by utilizing fluid press