| 摘要 |
A tube valve is provided to be easily opened and closed and to be installed in a narrow space of complex pipe line due to a simple structure. A tube valve includes a min body(10), a first cage(20), a second cage(30), a flexible tube(40), and a fixing device. The main body is installed to pipes and has a hollow cylindrical shape. The tube valve has a driving pressure introduction hole(11) formed at about center of the main body. The driving pressure introduction hole is communicated with an introduction pipe. The first cage is installed to a side of the main body and the second cage is installed to the other side of the main body. The first cage has the same shape as that of the second cage. Each of the first and second cages includes ring-shaped flanges(20a,30a) mounted to ends of the main body, and cylindrical parts(20b,30b) integrally formed with the flanges and having gradually reducing cross section. Steps are formed between the flanges and the cylindrical parts so that the ends of the flexible tube are inserted.
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