Environment-friendly durable waterproof four-core male joint

The utility model discloses an environment-friendly durable waterproof four-core male head which comprises a base, a connecting ring, a protruding block, a lock-shaped groove, an arrow groove, a labor-saving groove, a D-shaped groove cylinder, a core column, a cross-shaped separation column, a clamping groove, a connecting sleeve, an annular groove and external thread teeth. Protruding blocks are symmetrically arranged on the two sides of the inner wall of the connecting ring, a lock-shaped groove is formed in one side of the front face of the outer wall of the connecting ring, arrow grooves are symmetrically formed in the bottom end of the front face of the outer wall of the connecting ring and one side of the top end of the front face of the base, and labor-saving grooves are formed in the back face and the two sides of the outer wall of the connecting ring and the top ends of the back face and the two sides of the base. The integral structure of the four-core male head is optimized, and no fastener is need