| 摘要 |
PURPOSE:To cause circulation and flow both in horizontal and vertical directions smoothly in a duct line of a spraying device by permitting rotary motion in the horizontal and vertical direction in a rotary spraying pipe by one rotary joint. CONSTITUTION:A main body 3 of a joint is housed in a bottomed cylindrical external cylinder 14 freely rotatably in the peripheral direction, and the inside of the main body 3 of the joint is divided to a chamber 9 and 10 by a partition wall 12 which is gradually twisted in the peripheral direction from the bottom end part of the inside toward the opening part at the top of the main body. And a connecting pipe 5 is connected to form communication freely rotatably to the main body of the joint and to one side of the opening part of the external cylinder 14 in one of the divided chamber 9, and a connecting port 6 of a hose joint is connected freely rotatably to the main body 3 of the joint and to another side of the opening of the external cylindrical body in another divided chamber 10 and communicated therewith. A bottom end of the opening of the connecting pipe 4 is connected with the main body 3 of the joint in the same direction with the bottom end face of a partition wall 4a to form one body. Therefore, the twisted wall 12 maintains its relative position even if the connecting pipe is rotated horizontally.
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