Valve device with pipe, and method for manufacturing a valve device with pipe

Abstract

The present invention provides a valve device with a pipe that allows for easy design of the valve device, and a method for manufacturing the valve device with a pipe. [Solution] The valve device with a pipe 1 constitutes part of a circulation circuit through which fluid flows. The valve device with a pipe 1 comprises a plurality of pipes 4, a valve device 2 having a plurality of sleeve portions 3 made of synthetic resin through which the pipes 4 are rotatably connected, and a pin 6 inserted from the sleeve portion 3 through to the pipe 4. The inner wall of the pin insertion hole 5 through which the pin 6 of the sleeve portion 3 is inserted has a tapered shape that gradually widens in diameter from the outer opening edge of the sleeve portion 3 toward the inside of the sleeve portion 3.

Claims

1. A valve device with a pipe that constitutes part of a circulating circuit through which a fluid flows, Multiple pipes, A valve device having multiple sleeve portions made of synthetic resin, each of which is rotatably connected to the aforementioned pipe, A pin inserted from the sleeve portion to the pipe, Equipped with, A valve device with a pipe, characterized in that the inner wall of the pin insertion hole through which the pin is inserted in the sleeve portion has a tapered shape that gradually widens in diameter from the outer opening edge of the sleeve portion toward the inside of the sleeve portion.

2. A valve device with a pipe according to claim 1, The aforementioned pipe is provided with a claw portion that protrudes radially outward, The inner circumferential surface of the sleeve portion is provided with a vertical groove for receiving the claw portion and a horizontal groove that is continuous with the vertical groove and extends in the circumferential direction. The engagement of the claw portion and the lateral groove portion prevents the pipe from falling out of the sleeve portion. A valve device with a pipe, characterized in that the pin insertion hole is provided in the circumferential direction of the sleeve portion at the same or overlapping phase with the vertical groove portion or the horizontal groove portion.

3. A valve device with a pipe according to claim 2, A valve device with a pipe, characterized in that the pin insertion hole is provided overlapping with the vertical groove or the horizontal groove.

4. A valve device with a pipe according to claim 3, The aforementioned pin is a pipe-attached valve device characterized by being formed by curving a thin plate into a cylindrical shape to create a C-shaped cross-section.

5. A valve device with a pipe according to any one of claims 1 to 4, The three aforementioned pipes, The three aforementioned sleeve portions, A valve device with a pipe, equipped with the necessary components.

6. A valve device with a pipe according to claim 5, The three aforementioned pipes lead to a water pump, a heating heat exchanger, an oil cooler, and a radiator, respectively, in a valve device with pipes.

7. A method for manufacturing a valve device with a pipe that constitutes part of a circulating circuit through which a fluid flows, The aforementioned valve device with pipe is Multiple pipes, A valve device having multiple sleeve portions made of synthetic resin, each of which is rotatably connected to the aforementioned pipe, A pin inserted from the sleeve portion to the pipe, Equipped with, A method for manufacturing a valve device with a pipe, characterized in that the pin insertion hole through which the pin is inserted in the sleeve portion is formed by a mold removed from the inside of the sleeve portion.

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