| 摘要 |
PURPOSE: A flexible hose having a check valve function, is provided to allow the working convenience and efficiency and also to improve the economic profit and the stability of an extinguishing equipment by manufacturing a check valve and a flexible hose as a one body, that is by letting the flexible hose have a check valve structure. CONSTITUTION: The flexible hose having a check valve function includes: a stainless ring(3), connected to the inner side of a nut tube(2) which is located in one end of the flexible hose body(1); a valve body(4), shutting and opening the stainless ring(3); a guide hole(5), guiding the valve body(4) in a sliding manner; and a socket(9), arranged on the other end of the flexible hose body(1), that is, on the opposite end of the nut tube(2). The stainless ring(3) is connected to the inner side between the nut tube(2) and the flexible hose body(1), and the guide hole(5) has a through-flow space and is fixed-connected to the inner side of the nut tube(2) by using a snap ring(6).
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