2results about "Preformed elements" patented technology

This invention discloses a method for concealed installation of water supply pipes in a thin-walled membrane structure for modular concrete buildings, comprising the following steps: inserting an inner PB flexible hose into an outer flexible plastic sleeve to form a double-layer combined sleeve; pre-embedding the double-layer combined sleeve within a membrane shell steel mold; pre-embedding a junction box at the water point and connecting it to the double-layer combined sleeve; pouring concrete into the membrane shell steel mold and curing it; connecting the inner PB flexible hose to a horizontal water supply pipe suspended from the prefabricated bathroom ceiling slab via an upper conversion joint; and connecting and fixing the inner PB flexible hose to a faucet or angle valve via a lower conversion joint, thus completing the concealed installation of the water supply pipes in the bathroom functional area. During the water supply pipe installation process in the bathroom functional area, the water supply pipes can be laid within composite beams or shear walls. The inner PB water supply pipes can be pulled out from the junction box using the combined sleeve and junction box, enabling convenient maintenance. The concealed installation of the bathroom water supply pipes is completed in the factory, saving on-site construction time.