| 摘要 |
PURPOSE:To enable a pump cylinder, selector valve, delivery pipe, etc. to be all easily washed by a low priced device, by supplying pressure water to a circulation path, formed in a rod or a pump piston of a driving cylinder, and moving a washing bowl. CONSTITUTION:A device, arranging a washing bowl 28 in the front of a pump piston 3a and extending a rod 22a simultaneously switching a selector valve (not shown in the drawing), connects a pump cylinder 2a with a delivery pipe (not shown in the drawing). Pressure water is supplied between the pump piston 3a and the washing bowl 28 through a hose 27 and a circulation path 23a provided in a point part of the rod 22a, and the washing bowl 28 is moved to the front by the pressure of water. In this way, the pump cylinder 2a, selector valve and inside of the delivery pie can be all easily washed. While the above described constitution, decreasing a number of part items, enables the device to be low priced.
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