Forced demolding mechanism and mold for lower cover of water tank

The utility model relates to a forced demoulding mechanism and mould for a water tank lower cover, which comprises a fixed mould, a movable mould, the water tank lower cover and the forced demoulding mechanism for the water tank lower cover, and the fixed mould is positioned above the movable mould; a water tank lower cover is mounted between the fixed mold and the movable mold, a cavity is formed in the fixed mold and is communicated with the water tank lower cover, a forced demolding mechanism for the water tank lower cover is mounted in the cavity, and the lower end of the forced demolding mechanism for the water tank lower cover extends into an inverted buckling part of the water tank lower cover. The holding force of the back-off part of the water tank lower cover on the fixed mold insert is utilized to enable the fixed mold insert to move along with the water tank lower cover during mold opening, then strong demolding is carried out by utilizing the characteristic that the back-off part of the water tan