Patent ID: 7603743
Filing Date: 2009-10-20
Classification: A47L

Abstract:
1. A structure for connecting a dust collecting hose of a central vacuum cleaning system comprising: a dust collecting pipe which is communicated with the vacuum cleaning system; a base plate wherein one end of the dust collecting pipe is connected to the rear side of the base plate, and an installation recess is formed on the front surface of the base plate to be communicated with the dust collecting pipe, and a closed plate is mounted rotatively on the installation recess to open and close the dust collecting pipe; a connecting pipe which is connected to the dust collecting hose at the rear side of the connecting pipe and is inserted into the dust collecting pipe and electrically connected; and a switching member installed in the connecting pipe so that when the connecting pipe is being inserted into the collecting pipe the switching member protrudes towards the closed plate and extends beyond the open end of the connecting pipe, said switching member contacting the closed plate before the connecting pipe connects to the dust collecting pipe to rotate and switch the closed plate.