| 摘要 |
PURPOSE:To easily collect dirt flowing in bathtub water in a wide range of difference of surface height and compact a slide tube by widening scope of transfer of slide tube and varying the length of slide tube complying with the height of water surface. CONSTITUTION:On the outer circumference of a dirt collecting nozzle 3, a suction hole of bathtub water of a dirt collecting device 2, a plurality of slide tubes 9 equipped with slide prevention function respectively are provided. Namely, a slide tube 9 consisting of three cylinders 9a, 9b and 9c is installed expansibly on the outer circumference of the nozzles 3, and each of said three cylinders 9a-9c has a hang-up to prevent it from sliding off. Further, the utmost inner cylinder 9c is furnished with slide prevention function not to slide off from the dirt collecting nozzle 3.
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