The present invention discloses a new toilet lid hinge comprising a spring, a plastic cup, a clamp rod, a mounting plate, a mounting disk, a vertical rod and a collet, the vertical rod being welded to the mounting disk perpendicular thereto in center position; a fixing groove is formed in the surface of the fixing disk; an annular groove is formed in the upper end surface of the vertical rod; the entirety of the clamping sleeve is cylindrical; and in the collet, a through hole extending centrally in the longitudinal direction is formed; the clamping bar protrudes from the through hole, with one of its ends being inserted into the plastic shell and the other end being butt connected to the spring and being inserted together with the spring into another plastic shell; an invisible groove, along the radial direction of the clamping sleeve and in the middle position thereof, is formed on one side of the clamping bar; one of two beak-shaped plates is clamped in each case in one of the two opposite plastic shells. The toilet lid hinge is capable of connecting a cover for a bowl, a seat for a bowl, and a bowl at the same time; when the toilet is in use, the friction between the cover for the bowl and the seat for the bowl and the friction between the seat for the bowl and the bowl can be reduced, which the life of the cover for the bowl, the seat for the bowl Bowl and bowl extended.
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