Plastic thin wall box

Abstract

A plastic thin-walled box, comprising an upper panel (1), surrounding side panels (2), and a lower bottom panel (3), wherein the upper panel (1), the surrounding side panels (2), and the lower bottom panel (3) enclose each other to form a seal The cavity thin-walled box is characterized in that the upper plate (1), the surrounding side plates (2) and the lower bottom plate (3) are all plastic sheets (4), and the cavity thin-walled box is made of plastic sheets ( 4) Assembled, the combined parts are connected into a whole by the connector (5), the connector (5) is a male-female groove connector that prevents slipping, and the male strip (6) of the male-female groove connector (5') is inserted into the female The grooves (7) are internally connected, and the male strip (6) or / and the female groove (7) are provided with an anti-slip member (8), and the male strip (6) is inserted into the female groove (7) in a forward direction. It is suitable for floors, roofs, walls, foundation slabs and bridges of cast-in-place reinforced concrete or prestressed reinforced concrete, especially for beamless floors.

Description

(1) Technical field [0001] The invention relates to a plastic thin-wall box. (2) Background technology [0002] At present, in the prior art, the hole-forming member of the cast-in-place reinforced concrete hollow slab is a permanent mandrel, such as paper tubes, plastic tubes, metal bellows, hollow form shells, and lightweight materials for mandrels. These tubular mandrels or hollow components are mainly considered to evacuate the concrete and reduce the weight of the hollow slab. For example, the patent No. ZL99249798.1, which the applicant applied for on November 29, 1999, is a utility model patent named "fiber-reinforced thin-walled member for reinforced concrete filling", which discloses a thin-walled formwork member, including an upper plate, The surrounding side walls, the lower bottom, and the upper plate, the surrounding side walls and the lower bottom form a polyhedral cavity. Another example is that the application number applied by the applicant on November 23,...

AI Technical Summary

Problems solved by technology

However, this kind of thin-walled box formwork member is an integral thin-walled box member, and the thin-walled box formwork member is easy to be damaged during production stacking, transportation and installation construction, especially in the transportation process, and it is not easy to damage after damage. Repair, the wall surface cannot be disassembled and replaced. At the same time, it takes up a lot of space during transportation, the quantity of each transportation is small, and the transportation cost is high, which undoubtedly increases the cost of the thin-walled box and the construction cost of the cast-in-place reinforced concrete hollow slab.

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