Anti-internal-leakage abrasion-resistant valve

The utility model provides an anti-internal-leakage abrasion-resistant valve which solves the problem that an abrasion-resistant valve in the prior art internally leaks. The anti-internal-leakage abrasion-resistant valve comprises an adjusting valve and a valve body which are integrally arranged, wherein the adjusting valve comprises a support and a hand wheel arranged on the support; the valve body comprises an inlet valve casing, an outlet valve casing and a valve plate, the inlet valve casing and the outlet valve casing are in butt joint, a cavity is formed between the inlet valve casing and the outlet valve casing, the hand wheel is connected with the valve plate through a lead screw, besides, an overflow piece is arranged in the inner cavity of the valve body and composed of an inlet bush, an abrasion-resistant protecting groove, an outlet bush, a sealing ring and a liner plate, and the abrasion-resistant protecting groove is embedded between the inlet bush and the outlet bush. The anti-internal-leakage abrasion-resistant valve is characterized by further comprising elastic cushions which are arranged on a spigot of the inlet bush and a spigot table of the inlet valve casing; the semicircular upper bevel of the valve plate is 25 degrees, and the abrasion-resistant protecting groove is a plane type spigot platform. Due to the technical scheme, the internal sealing effect of the valve is achieved, the valve can be opened and closed more flexibly, and the torque is smaller.