To prevent deformation of a hose caused by a housing condition by integratedly forming a hook groove on the outer peripheral surface of a hose joint constituted in a curve pipe, and arranging a hook part installing body connected to the hook groove on the outer peripheral surface of a hose protecting body, in a hose connecting device used in an electric cleaner.

In an initial condition, a hook part 117 and a hook installing body 119 are connected to each other, and they are separated from each other at the time of the housing condition after cleaning is completed. The separated hook installing body 119 is hooked to a hook groove 121 formed on the outer peripheral surface of the hose joint of a curve pipe 105. When cleaning is carried out again, the hook installing body 119 is detached from the hook groove 121, and it is used while holding to the hook part 117. The movement of the hose protecting body 115 is restricted when strong curve load is applied to a hose 104 on cleaning, a curvature radius can be enlarged. It is also possible to prevent deformation of the hose 104 caused by the housing condition.