Built-in extensible tea table of motor home

The utility model discloses a motor home built-in extendable tea table which comprises a supporting assembly, a sliding assembly, universal guide wheels, a push-pull assembly, an extension box body and an extension tea table plate, the supporting assembly comprises a laterally-inverted U-shaped supporting frame, and connecting foot columns are evenly arranged at the four corners of the lower surface of the U-shaped supporting frame; one end of a horizontal plate at the upper end of the U-shaped supporting frame is connected with an expanding tea table plate through a hinge, the upper surface of a horizontal plate at the lower end of the U-shaped supporting frame is connected with an expanding box body through a sliding assembly, a connecting roller is arranged on the lower surface of the horizontal plate at the lower end of the U-shaped supporting frame, and a push-pull assembly is arranged at one end of the expanding box body. A strip made of rubber adheres to one side of the upper surface of the expansion b