DEVICE FOR SUPPLYING WATER FLOW ALONG PLASMA CUTTING TORCH

To provide a device which reliably supplies water flow along a plasma cutting torch with a simple structure.SOLUTION: A device (water flow device), which is mounted to a plasma cutting torch and supplies water flow along siad plasma cutting torch, has: an inner cylindrical body 1 which is fitted to a body 10 of a torch B; an outer cylindrical body 2 which is disposed on an outer peripheral side of the inner cylindrical body 1, and constitutes a water chamber 4 between itself and an outer peripheral surface 1a; a partition member 3 which is so disposed between the inner cylindrical body 1 and the outer cylindrical body 2 as to face the water chamber 4, forms a flow channel 5 between itself and the outer peripheral surface 1a of the inner cylindrical body 1, and forms an opening 6 which connects the water chamber 4 and the flow channel 5 to each other; a connection member 8 which is communicated with the water chamber 4, and to which a water supply member for supplying water to the water chamber 4 is connected; and an outflow port 7 which is configured at an end part of the flow channel 5, and cylindrically drains water circulated in the flow channel 5.SELECTED DRAWING: Figure 1 【課題】簡易な構造で確実にプラズマ切断トーチに沿わせて水流を供給する装置を提供する。【解決手段】プラズマ切断トーチに装着され該プラズマ切断トーチに沿わせて水流を供給する装置（水流装置Ａ）であって、トーチＢの本体１０に嵌装される内筒体１と、内筒体１の外周側に配置され、外周面１ａとの間に水室４を構成する外筒体２と、内筒体１と外筒体２の間に水室４と対向して配置され、内筒体１の外周面１ａとの間に流路５を形成すると共に該水室４と流路５を接続する開口６を形成する仕切部材３と、水室４に連通し、該水室４に水を供給する水供給部材が接続される接続部材８と、流路５の端部に構成され、該流路５を流通した水を筒状に流出させる流出口７と、を有する。【選択図】 図１