present invention is to pipe water from the branch to the direction of agricultural water supply to the water pipe to the manifold hameuroseo as produced by injection molding of minute mechanism used to join the superior productivity and assembly convenience in agricultural water pipe and about a minute mechanism to reduce the manufacturing costs, and more particularly to a water flow hole on one side (106) forming coupler (2) having an inner side and is formed integrally with the inner surface of the semi-circular on the inside by the stem 102, a pair of outwardly projecting coupling groove formed in the water pipe 101 and the inner surface of the stem 102 a guide groove 104 formed on the male threads and 103 minutes to form an instrument body that is hayeoseo (1) at the end of the stem (102) and transverse to form an abutment (301) and water in a semi-circular front tube defects groove 101 of the guide groove 104 is input to the guide projection (302) to the input of the water pipe fitting groove 101 by the inwardly around, the reverse operation to the pressure port 3 with: along a helical male thread (103) and screwed to the minute appliance body (1) at the rear side of the female screw 402 is formed by pressing a sphere (3) around the inner periphery, reverse operation and pressure close to the pressure port 3 tightening the cap (4): composed of was added to the water pipe (5) to the water pipe fitting groove 101 and input to the guide groove 104 of the guide protrusion 302, the stem 102 at the rear side and the inner surface to be pressed groove 401 of the coupling tube coupled to the pressure sphere in water groove and the tightening of the cap 4, the female screw 402 and the minute appliance body (1) of the male screw 103 screwed to the pressure cap 4 and the pressure port 3 of the rear pressure surface 303 hameuroseo pressing the pressure cap 4 is pressed port 3 at the same time is also in close contact with the pressure port 3 will be fixed to allow for a p
