The present invention relates to a branch pipe direct branching branch of the water pipe which is convenient to join the branch to the main water pipe and to form a branch pipe tightening coupling portion on one side of the branch to directly tighten the branch pipe. Specifically, both sides and the rear side are formed in a "U" shape, the inner side is formed as a device groove, the back side has a pressurized surface which is a semi-circular groove on the front side, and the back side has a pressurized surface formed with a tightening screw around the outer circumference. The main water pipe coupling part for adjusting the pressing force by inserting the operation tool having a screw and screwing the pressure cap having the tightening female screw to the inner diameter at the rear of the operating screw with the tightening screw of the branch body. Protruding on the other side of the device groove of the branching body and having a male thread on the outer circumference, the packing and the pressure port are put into the inner side of the coupling hole having a water hole communicating with the working groove in the inner center, and a taper hole is formed on one side of the inner diameter and the female screw on the other side. The outer circumference is formed as an inclined protrusion on the inner side of the tightening cap formed therein, the inner circumference has an annular protrusion and the outer circumferential wall is cut in the longitudinal direction, and a fastener having a cutting groove is introduced into the inner side of the tightening cap, and the tightening cap is screwed with the coupling hole. Branch pipe joints: Consisting of the main water pipe (7) into the device groove 11 and the operating port (2) from the rear side of the main water pipe (7) into the inside of the device groove (11), the guide projections (23) Is inserted into the guide groove 12 so that the actuating tool 2 slides forward and backward without departing from the inside of the apparatus groove 11 to the left and right, and the pressure cap 3 at the rear side of the actuating tool 2. When the tightening female screw 31 and the tightening screw 13 of the branch body 1 are combined, the supporting surface 22 of the actuating tool 2 and the bottom surface 32 of the pressure cap 3 come into close contact with each other. Increasing the screw tightening amount of the pressure cap (3) to the mechanism body (1) advances the operating port (2) to pressurize the main water pipe (7) while the main in the inner device groove (11) of the branch body (1) The water pipe 7 is fixed tightly and the screwing amount of the coupler 14 and the tightening cap 6 is reduced so that the packing 9 and the packing pressurization port 4 and the tightening port 5 are not in close contact with each other. Clamping opening (5) and packing pressurizing opening (4) and packing (9) Injecting the branch pipe (8) into the inner side and tightening the tightening cap (6) and the coupling holes 14, the close contact surface 43 of the packing pressure port (4) and the close contact surface 53 of the tightening port (5) is At the same time, the packing pressurization port 4 pressurizes the packing 9 while the packing 9 is sandwiched between the locking jaw 17 and the packing pressurizing surface 41 so that the cross section is deformed and the inner diameter is reduced. Press tightly to the outer circumference of the) to maintain the airtightness and the tightening hole (5) is pushed toward the small diameter of the tapered hole (61) at this time the width of the incision groove (52) is narrowed and the inner diameter of the tightening hole (5) Since the tightening opening 5 tightens the outer diameter of the branch pipe 8, the branch pipe 8 is fixed to the branch body 1.
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