52results about How to "Variety of cross-sectional shapes" patented technology

A plastic material thin-walled tube includes annular thin-walled tube, top seal plate for sealing tube end to form hollow thin-walled tube, featuring said body split-joined by a rolled sheet and connected to form longitudinal splice strip, connecting piece being a male threaded trough connector whose male strip pluging into releasing proof member in female threaded trough. Said invention has advantages of easy assembling, simple structure, and low cost, can be used in various kinds of cast-in-situ steel reinforcement concrete hollow slab, hollow building cover, and house cap base slab, wall, and hollow bridge etc.

A plastic material thin-walled tube includes annular thin-walled tube, top seal plate for sealing tube end to form hollow thin-walled tube, featuring said body split-joined by a rolled sheet and connected to form longitudinal splice strip, intracavity set with one of partible stand bar annular ring, bracing ring, stand bar or support plate, and contacting with inner wall of thin-walled tube body transverse direction set along thin-walled tube. Said invention is suitable for different kinds of cast-in-situ steel reinforcement concrete or prestressed reinforcement concrete hollow slab, hollow building cover, house cap, soleplate, wall and hollow bridge, specially hollow flat slab floor.

A plastic thin wall tube includes a ring thin wall tube and a closer board closing the end of the tube to form a close hollow thin wall tube characterizing that said tube is spliced by rolling a sheet to a ring, the joint parts are connected by a connector to form a longitudinal spliced strip, the inner cavity of the tube is set with a slit support rod ring, a support ring, a support rod or a support board, which is horizontal along the tube and has a plug notch and a reinforcing rib or allocation block is set on the notch to be stacked with it suitable for various hollow boards, hollow floors, roofs and foundation base plates.

A plastic thin-wall box includes circle-shape thin-wall pipe, blocking plates for enclosing both ends of said circle-shape thin-wall pipe to form a close cavity. The said thin-wall pipe features that it was rolled into circle-shape by a piece of plate; assembled section contact with each other by connecting parts and form a longitudinal assembled strip; at least one dowel go across the assembled parts of the plate of the thin-wall pipe, or of the endings of the thin-wall pipe and the blocking plate. The dowel contacts the plate of the thin-wall plate with the blocking plate strongly, raising the whole function of the plastic thin-wall pipe greatly. It is simple structure, easy construction, low cost, etc. The present invention is suitable for various cast-in-place hollow floor slab, roofing, base slab, wall and open web bridge.

A plastic thin wall tube includes a ring thin wall tube and a closer board closing the end of the tube to form a close hollow thin wall tube characterizing that said tube is spliced by a rolling a sheet to a ring, the spliced parts are connected by a connector to form a longitudinal strip, in which, the connector is composed of a male post and a female hole and the male post is plug into the female hole.

A plastic material thin-walled tube includes annular thin-walled tube, top seal plate for sealing tube end to form hollow thin-walled tube, featuring said body split-joined by a rolled sheet and connected to form longitudinal splice strip, connecting piece being a male threaded trough connector whose male strip pluging into releasing proof member in female threaded trough. Said invention has advantages of easy assembling, simple structure, and low cost, can be used in various kinds of cast-in-situ steel reinforcement concrete hollow slab, hollow building cover, and house cap etc.

A plastic thin-wall box includes circle-shape thin-wall pipe, blocking plates for enclosing both ends of said circle-shape thin-wall pipe to form a close cavity. The said thin-wall pipe features that it was rolled into circle-shape by a piece of plate, assembled section contact with each other by connecting parts; the connecting parts are male-female notches connecting parts, and the male bar insert the female notch and form a longitudinal assembled strip; the longitudinal assembled strip has at least one male bar or / and one female notch; It is simple structure, easy construction, lost cost, etc. Meanwhile, the male bar and female notch contacts well with each other and contact easily, rapidly. The present invention is suitable for various cast-in-place hollow floor slab, roofing, base slab, wall and open web bridge.

A plastic thin-wall box includes circle-shape thin-wall pipe, blocking plates for enclosing both ends of said circle-shape thin-wall pipe to form a close cavity. The said thin-wall pipe features that it was rolled into circle-shape by a piece of plate; assembled section contact with each other by connecting parts and form a longitudinal assembled strip; the cementing layer is assembled by two parts, which located at the assembled part of the plates of the thin-wall pipe or the ending of the thin-wall pipe and the blacking plate. It is simple structure, easy construction, low cost, etc. The present invention is suitable for various cast-in-place reinforced concrete hollow floor slab, roofing, base slab, wall and open web bridge, especially cast-in-place reinforced concrete hollow no-beam floor slab.

A plastic thin-wall box includes circle-shape thin-wall corrugated pipe, blocking plates for enclosing both ends of said circle-shape thin-wall corrugated pipe to form a close cavity. The said thin-wall pipe features that it was rolled into circle-shape by a piece of plate; assembled sections contact with each other by connecting parts and form a longitudinal assembled strip. It is simple structure, easy construction, lost cost, etc. and it can enlarge the connecting area between the pipe and cast-in-place reinforced concrete; enhance the connecting intensity. The present invention is suitable for various cast-in-place hollow floor slab, roofing, base slab, wall and open web bridge.