CN1598195A - A cavity formwork member - Google Patents

Abstract

A hollow shuttering member comprises an upper board (1), peripheral side panels (2), and a lower bottom (3), the upper board (1), the peripheral side panels (2), and the lower bottom (3) enclose a polyhedral hollow shuttering member, characterized in that at least one base layer of the upper board (1), the peripheral side panels (2), and the lower bottom (3) of the hollow shuttering member is light material (4). In this way, at least one of the upper plate, the peripheral side wall and the lower bottom is made of light material, so the light form member has relatively light weight and convenient carrying and construction, and can prevent the crack between the cast-in-situ concrete rib and the light form member due to light weight.

Description

A cavity formwork member

(1) Technical field

The present invention relates to a cavity formwork member.

(2) Background technology

At present, the cast-in-place concrete hollow floor is a widely used floor structure. The lightweight permanent tire molds filled in it include various hollow tubes and boxes, and the boxes are hollow or solid. 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 the patent No. ZL00203695.9 applied by Liang Jun, Shijiazhuang City, Hebei Province on February 23, 2000, and the name is called "combined concrete hidden rib floor cover plate" utility model patent, which discloses a formwork member in its specification sheet. It can be solid or hollow, and its shape can be made into rectangle, circle, polygon and other shapes according to design requirements. Another example is the patent No. ZL93206310.1 applied by Yu Shaohua in Tianjin on March 20, 1993, and the name is called "formwork member" utility model patent. It also discloses a thin-walled formwork member, which combines side walls with upper , The lower bottom is made of a fully enclosed fasting polyhedron structure, and the mold shell is equipped with reinforcing ribs, and is made of GRC or magnesium chloride GRC or sand-free ceramsite cement. Another example is that the application number applied by the applicant on November 23, 2001 is 01140106.0, the publication number is CN1356442, and the name is called "a kind of cavity structure formwork for cast-in-place reinforced concrete floor slab" patent application for invention. The cavity structure disclosed by it Formwork, including "upper plate, surrounding side walls, and lower bottom, the upper plate, surrounding side walls, and lower bottom form a polyhedral cavity member. This cavity member has the advantages of light weight, high strength, simple structure, and convenient construction and transportation. Features, at the same time, in actual use, the lower bottom can participate in the force, and can hang heavy objects without cracking the cast-in-place prefabricated joint surface. These lightweight tire mold components disclosed above are applied to cast-in-place concrete In the floor, it is both a formwork member and a prefabricated filling member, which has the characteristics of simple structure, high strength, excellent deformation resistance, anti-vibration performance, easy manufacture, and low cost. However, when this lightweight tire mold member is large, The weight is relatively heavy, the handling and construction are troublesome, and after a long period of use, cracks between the cast-in-place concrete ribs and the lightweight tire mold members are easy to appear. Therefore, it is urgent to develop a new cavity formwork member.

(3) Contents of the invention

The object of the present invention is to provide a cavity formwork member, which has the characteristics of light weight, easy handling, convenient construction, and the ability to prevent cracks between cast-in-place concrete ribs and lightweight tire formwork members.

The solution of the present invention is based on the prior art, including the upper plate, the surrounding side walls, and the lower bottom, and the upper plate, the surrounding side walls, and the lower bottom form a polyhedral cavity formwork member, which is characterized in that the cavity formwork At least one base layer of the upper plate, the surrounding side walls and the lower bottom of the component is made of lightweight material. In this way, since at least one of the upper plate, the surrounding side walls, and the lower bottom is made of lightweight material, the weight of the lightweight tire mold member is relatively light, and the transportation and construction are convenient. The cracks between the lightweight tire mold components are generated, thereby achieving the purpose of the present invention. In addition, the lightweight tire mold components also have the characteristics of simple structure, high strength, easy manufacture, and low cost, and are suitable for various cast-in-place steel bars Concrete or prestressed reinforced concrete floors, roofs, foundation slabs, walls, bridges, especially for beamless floors.

The present invention is also characterized in that at least one of the upper plate, the surrounding side walls, and the lower bottom contains reinforcements, or the reinforcements are exposed, or the reinforcements in each extend into the matrix of adjacent components and pull each other. Knot. Reinforcements are elongated members of filaments or tendons, or woven or woven cloth and nets of filaments or elongated members of tendons, or non-textured adhesive cloth, nets, or a combination of the two or more, such as reinforcements can be steel bars, steel wires, steel bars At least one of net, steel wire mesh, fiber, fiber tow, fiber mesh cloth, non-woven fabric, thin metal strip, thin strip with holes, packing tape, braided tape, etc. In this way, the above-mentioned reinforcements are contained in the upper plate, the surrounding side walls or the lower bottom, which greatly improves their strength and rigidity, so that the cavity formwork members are not easy to be damaged during stacking, transportation, installation and construction, even if there is a small area Damage, because of the connection of reinforcements, does not need to be repaired, and can continue to be used. If there are reinforcements on the cavity formwork component exposed outside the cavity formwork component, when the cavity formwork component is applied to the cast-in-place concrete hollow floor, the exposed reinforcement and the cast-in-place concrete can greatly Improve the gripping force between the cast-in-situ concrete and the cavity formwork components, optimize the performance of the entire hollow floor; at the same time, the exposed reinforcements are also convenient for use as handles, rings or hooks when the cavity formwork components are transported.

The present invention is also characterized in that the light material is at least one of foamed plastics, expanded perlite, expanded vermiculite, ceramsite concrete, cement-bonded foamed plastic granular concrete, aerated concrete or foamed concrete. In this way, the cavity formwork member has better sound insulation, heat insulation, and thermal insulation properties; the diversity of its light material types facilitates the use of nearby materials during production, which is conducive to reducing production costs.

The present invention is also characterized in that the upper plate or the surrounding side walls or the lower bottom are provided with convenient transporting parts. The carrier can be handles, hooks, rings or other devices. In this way, the cavity formwork components can be stacked, transferred, hoisted and constructed very conveniently, which reduces the work difficulty and work intensity of the above-mentioned processes, is conducive to improving the construction efficiency and reducing the construction cost.

The invention is also characterized in that at least one laminate is disposed in at least one of said upper panel, surrounding side walls or lower base. In this way, the upper plate, the surrounding side walls or the lower bottom are provided with laminated layers, which greatly reduces the production difficulty of the cavity formwork components, and at the same time greatly improves the impact resistance of the cavity formwork components, reducing the product cost. The breakage rate is high, which improves the production efficiency of cavity formwork components.

The present invention is also characterized in that the laminated layer is plastic board, thin iron sheet, mortar board, fiberboard, waterproof cardboard, concrete board, lightweight aggregate board, lightweight board or foam board.

The present invention is also characterized in that the horizontal section or vertical section shape of the cavity formwork member is rectangular, square, polygonal, arc-angled polygon, chamfered polygon, polygonal-arc, corrugated or circular. In this way, the diversification of the shape of the polyhedral cavity formwork member makes the cavity formwork member applied to the cast-in-place concrete hollow floor, and correspondingly forms various cast-in-place concrete structures of different shapes, thus making the cast-in-place concrete hollow building The structure of the cover is more reasonable, which is convenient for the design and construction units to choose.

The present invention is also characterized in that at least one of grooves, inner corners, chamfers, pits, holes, boss modules, convex lines, and outer corners is provided on the cavity formwork member. In this way, when the cavity formwork components are applied to the cast-in-place concrete hollow floor, the cast-in-place concrete is poured into the grooves, inner corners, chamfers, pits, and holes, and a local cast-in-place concrete reinforcement structure can be formed accordingly; The boss modules, protruding lines, and external corners set on the cavity formwork can evacuate the unstressed concrete in the floor, further reduce the weight of the floor itself, save the amount of concrete, reduce the cost of the floor, and improve performance of the roof.

The present invention is also characterized in that the grooves, internal corners, chamfers, and convex lines are arranged parallel, orthogonal, oblique or vertical to each other. In this way, when the cavity formwork component is applied to the cast-in-place concrete hollow floor, the grooves, internal corners, chamfers, and convex lines on the cavity formwork component are arranged in parallel, orthogonal, oblique or vertical , after the concrete is poured at the above positions, corresponding cast-in-place concrete strengthening structures in parallel, orthogonal, oblique or overpass are formed, which greatly improves the mechanical properties of the cast-in-place concrete floor.

The present invention is also characterized in that at least one of stiffeners, stiffeners, and ribs is provided in the closed cavity of the cavity formwork member, or at least one of stiffeners, stiffeners, and ribs is exposed in the cavity. Outside the cavity formwork member, there are reinforcements exposed on the stiffeners, stiffeners, and stiffeners, or the stiffeners, stiffeners, and ribs are laminated with the wall of the cavity member or the reinforcements and mesh reinforcements are exposed after lamination. In this way, when the cavity formwork member is applied to the cast-in-place concrete hollow floor, the stiffeners, stiffeners, and ribs or exposed stiffeners, stiffeners, and ribs set in the cavity formwork member can be integrated with the cast-in-place concrete. A composite structure combining cast-in-place and prefabrication is formed, and the internal stress system of the cast-in-place concrete floor is optimized. If there are reinforcements exposed thereon, the cavity formwork member and the cast-in-place concrete will be bonded more firmly, and the integrity of the floor will be better.

The present invention is also characterized in that at least one of the outer surfaces of the upper plate, the surrounding side walls, and the lower bottom is a corrugated, zigzag, brushed or rough outer surface. In this way, when the cavity formwork member is applied to the cast-in-place concrete hollow floor, because the surface is corrugated, zigzag, roughened or rough surface, the gap between the prefabricated cavity formwork member and the cast-in-place concrete The bonding force is stronger, which can greatly improve the overall performance of the floor.

The present invention is also characterized in that a positioning member is arranged on the cavity formwork member. The positioning member can be a pull ring, a pull hook, an iron wire, a supporting foot, a small protrusion, a small convex nail or other devices. In this way, when the cavity formwork components are applied to the cast-in-situ concrete hollow floor, the cavity formwork components can be accurately positioned to prevent the cavity formwork components from floating and shifting during pouring of concrete. The steel bar can be limited to effectively ensure the pouring quality of the floor.

The present invention is also characterized in that the cavity formwork components are provided with connectors for connecting the cavity formwork components with each other. Connectors can be steel bar, steel mesh, steel wire, steel wire mesh, angle steel, channel steel, L-shaped steel, T-shaped steel, ferrule, bolt, male and female groove, socket piece, sawtooth piece, convex groove, groove, bayonet, card Covers, holes, embedded iron parts, etc. In this way, when the cavity formwork components are applied to the cast-in-place concrete hollow floor, the connectors provided on the cavity formwork components can effectively and reliably control the distance between the cavity formwork components, and control the distance between the cast-in-place concrete ribs. The width and height ensure the pouring quality of the internal structure of the floor; at the same time, it is also conducive to the connection and positioning of the cavity formwork components, or the formation of group components to speed up the construction speed.

The present invention is also characterized in that at least two or more cavity formwork components are connected through connectors to form a group assembly, and the inner rib cavity is formed between the cavity formwork components. In this way, when the cavity formwork member is applied to the cast-in-place concrete floor, the cast-in-place concrete enters the inner rib cavity to form the cast-in-place concrete inner rib, which improves the mechanical properties of the floor; at the same time, the cavity formwork member The cavity formwork assembly is formed by connecting as a whole through the connecting piece, thus greatly improving the construction efficiency and construction speed of the floor.

The present invention is also characterized in that at least one of the upper plate and the lower bottom of the cavity formwork member protrudes from a pick-up plate or a pick-up plate exposed to reinforcements. In this way, when the cavity formwork component is applied to the cast-in-situ concrete hollow floor, the pick plate can replace the construction template, save the template installation process, reduce the material loss rate, and improve the construction efficiency at the same time.

The present invention is also characterized in that a plurality of cavity formwork members are connected by pick plates to form a group assembly, and the inner rib cavity is formed between the cavity formwork members. In this way, when the cavity formwork components are applied to the cast-in-situ concrete hollow floor, the pick plate can replace the construction formwork, save the formwork installation process, and reduce the material loss rate. At the same time, because the cavity formwork components form a group components, thus greatly improving the construction efficiency and construction speed of the floor.

(4) Description of drawings

Fig. 1 is a schematic structural diagram of Embodiment 1 of the present invention. In the accompanying drawings, 1 is an upper plate, 2 is a surrounding side wall, 3 is a lower bottom, and 4 is a lightweight material. In the following drawings, those with the same number have the same description. As shown in FIG. 1 , the upper plate 1 , surrounding side walls 2 and lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1 , surrounding side walls 2 and lower bottom 3 are all made of lightweight materials 4 .

Fig. 2 is a structural schematic diagram of Embodiment 2 of the present invention, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedron cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight The material 4 is made, and reinforcements 5 are arranged in the surrounding side walls 2 and the lower bottom 3, and the reinforcements 5 are steel wires as shown in the figure.

Fig. 3 is a schematic structural view of Embodiment 3 of the present invention, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight Made of material 4, the lightweight material 4 is ceramsite concrete.

Fig. 4 is a schematic structural view of Embodiment 4 of the present invention, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight The material 4 is made, and the surrounding side wall 2 is provided with a carrier 6 for easy transportation, and the carrier 6 is a handle as shown in the figure.

Fig. 5 is a schematic structural view of Embodiment 5 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight The material 4 is made, and the lamination layer 7 is arranged in the bottom 3 thereof.

Fig. 6 is a schematic structural view of Embodiment 6 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight Made of material 4, the lower bottom 3 is provided with a superimposed layer 7, and the superimposed layer 7 is a concrete board.

Fig. 7 is a structural schematic diagram of Embodiment 7 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight. Material 4 is made, and the horizontal cross-sectional shape of its cavity formwork member is polygonal.

Fig. 8 is a schematic structural view of Embodiment 8 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight Made of material 4, the cavity formwork member is also provided with internal corners 9, pits 11, holes 12 and boss modules 13.

Fig. 9 is a structural schematic diagram of Embodiment 9 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight Made of material 4, grooves 8, internal corners 9, chamfers 10, convex strips 14 and male corners 15 are also provided on the cavity formwork member.

Fig. 10 is a schematic structural view of Embodiment 10 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight. material 4, the closed cavity of the cavity formwork member is provided with stiffeners 16, stiffeners 17 and ribs 18 at the same time, and the stiffeners 16 and stiffeners 17 are partly exposed in the cavity formwork Component exterior.

Fig. 11 is a schematic structural view of Embodiment 11 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight. It is made of material 4, and its upper plate 1 is a corrugated outer surface.

Figure 12 is a schematic structural view of Embodiment 12 of the present invention, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight The material 4 is made, and the positioning piece 20 is arranged on its cavity formwork member, and the positioning piece 20 is a supporting positioning block in the figure.

Fig. 13 is a schematic structural view of Embodiment 13 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight material 4, the cavity formwork components are provided with connectors 21 for connecting the cavity formwork components to each other, and the connectors 21 are rods as shown in the figure.

Figure 14 is a schematic structural view of Embodiment 14 of the present invention, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight Made of material 4, a plurality of cavity formwork components are connected through connectors 21 to form a group assembly, and the distance between adjacent cavity formwork forms inner rib cavity 22.

Fig. 15 is a schematic structural view of Embodiment 15 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight. Material 4 is made, and its bottom 3 stretches out to have pick-up plate 23.

Fig. 16 is a schematic structural view of Embodiment 16 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight. The material 4 is made, and its multiple cavity formwork components are connected as a whole through the picking plate 23 to form a group assembly, and the distance between the cavity formwork components forms the inner rib cavity 22 .

(5) Specific implementation methods

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in the accompanying drawings, the present invention includes an upper plate 1, surrounding side walls 2, and lower bottom 3, and the upper plate 1, surrounding side walls 2, and lower bottom 3 form a polyhedral cavity formwork member, which is characterized in that the cavity formwork At least one base layer of the upper plate 1 , the surrounding side walls 2 , the lower bottom 3 of the component is a lightweight material 4 . Fig. 1 is a schematic structural diagram of Embodiment 1 of the present invention. In the accompanying drawings, 1 is an upper plate, 2 is a surrounding side wall, 3 is a lower bottom, and 4 is a lightweight material. In the following drawings, those with the same number have the same description. As shown in FIG. 1 , the upper plate 1 , surrounding side walls 2 and lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1 , surrounding side walls 2 and lower bottom 3 are all made of lightweight materials 4 .

The present invention is also characterized in that at least one of the upper plate 1, the surrounding side walls 2, and the lower bottom 3 contains reinforcements 5, or the reinforcements 5 are exposed, or the reinforcements 5 in each extend into the adjacent ones. Tie knots in the matrix of the components. Reinforcement 5 is silk, tendon slender member, or silk, tendon slender member weaving or weaving cloth and net, or non-textured bonding adhesive cloth, net, or a combination of the two or more, such as reinforcement 5 can be steel bar, steel wire , steel mesh, steel wire mesh, fiber, fiber tow, fiber mesh cloth, non-woven fabric, thin metal strip, thin strip with holes, packing tape, braided tape, etc. Fig. 2 is a structural schematic diagram of Embodiment 2 of the present invention, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedron cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight The material 4 is made, and reinforcements 5 are arranged in the surrounding side walls 2 and the lower bottom 3, and the reinforcements 5 are steel wires as shown in the figure.

The present invention is also characterized in that the light material 4 is at least one of foamed plastics, expanded perlite, expanded vermiculite, ceramsite concrete, cement-bonded foamed plastic granular concrete, aerated concrete or foamed concrete. Fig. 3 is a schematic structural view of Embodiment 3 of the present invention, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight Made of material 4, the lightweight material 4 is ceramsite concrete.

The present invention is also characterized in that the upper plate 1 or the surrounding side walls 2 or the lower bottom 3 are provided with a carrier 6 for easy transportation. Fig. 4 is a schematic structural view of Embodiment 4 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight The material 4 is made, and the surrounding side wall 2 is provided with a carrier 6 for easy transportation, and the carrier 6 is a handle as shown in the figure.

The present invention is also characterized in that at least one laminated layer 7 is provided in at least one of the upper plate 1 , the surrounding side wall 2 or the lower bottom 3 . Fig. 5 is a schematic structural view of Embodiment 5 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight The material 4 is made, and the lamination layer 7 is arranged in the bottom 3 thereof.

The present invention is also characterized in that the laminated layer 7 is a plastic board, thin iron sheet, mortar board, fiberboard, waterproof cardboard, concrete board, lightweight aggregate board, lightweight board or foam board. Fig. 6 is a schematic structural view of Embodiment 6 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight Made of material 4, the lower bottom 3 is provided with a superimposed layer 7, and the superimposed layer 7 is a concrete board.

The present invention is also characterized in that the horizontal section or vertical section shape of the cavity formwork member is rectangular, square, polygonal, arc-angled polygon, chamfered polygon, polygonal-arc, corrugated or circular. Fig. 7 is a structural schematic diagram of Embodiment 7 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight. Material 4 is made, and the horizontal cross-sectional shape of its cavity formwork member is polygonal.

The present invention is also characterized in that the cavity formwork member is provided with grooves 8, internal angles 9, chamfers 10, pits 11, holes 12, boss modules 13, convex strips 14, and external angles 15. at least one. Fig. 8 is a schematic structural view of Embodiment 8 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight Made of material 4, the cavity formwork member is also provided with internal corners 9, pits 11, holes 12 and boss modules 13. Fig. 9 is a structural schematic diagram of Embodiment 9 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight Made of material 4, grooves 8, internal corners 9, chamfers 10, convex strips 14 and male corners 15 are also provided on the cavity formwork member.

The present invention is also characterized in that the grooves 8 , internal corners 9 , chamfers 10 , and convex strips 14 are arranged parallel, orthogonal, oblique, or vertical to each other. As shown in Figure 9, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are enclosed to form a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all made of light-weight materials 4. The grooves 8, inner corners 9, chamfers 10 and convex lines 14 provided on the cavity formwork member are arranged parallel, orthogonal or perpendicular to themselves or to each other.

The present invention is also characterized in that at least one of stiffening ribs 16, stiffening rods 17, and reinforcing ribs 18 is arranged in the closed cavity of the cavity formwork member, or there are stiffening ribs 16, stiffening rods 17, and reinforcing ribs 18. At least one of them is exposed outside the cavity formwork member, or the reinforcement 5 is exposed on the stiffener 16, the stiffener 17, and the rib 18, or the stiffener 16, the stiffener 17, the rib 18 and the wall of the cavity member Exposed tendons and mesh reinforcements after lamination or lamination 5. Fig. 10 is a schematic structural view of Embodiment 10 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight. material 4, the closed cavity of the cavity formwork member is provided with stiffeners 16, stiffeners 17 and ribs 18 at the same time, and the stiffeners 16 and stiffeners 17 are partly exposed in the cavity formwork Component exterior.

The present invention is also characterized in that at least one of the outer surfaces of the upper plate 1 , the surrounding side walls 2 and the lower bottom 3 is corrugated, zigzag, brushed or rough. Fig. 11 is a schematic structural view of Embodiment 11 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight. It is made of material 4, and its upper plate 1 is a corrugated outer surface.

The present invention is also characterized in that a positioning member 20 is arranged on the cavity formwork member. Fig. 12 is a schematic structural view of Embodiment 12 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are light It is made of solid material 4, and its cavity formwork member is provided with a positioning piece 20, and the positioning piece 20 is a supporting positioning block as shown in the figure.

The present invention is also characterized in that the cavity formwork components are provided with connecting pieces 21 for connecting the cavity formwork components with each other. Fig. 13 is a schematic structural view of Embodiment 13 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight material 4, the cavity formwork components are provided with connectors 21 for connecting the cavity formwork components to each other, and the connectors 21 are rods as shown in the figure.

The present invention is also characterized in that at least two or more cavity formwork components are connected as a whole through connectors 21 to form a group assembly, and an inner rib cavity 22 is formed between the cavity formwork components. Figure 14 is a schematic structural view of Embodiment 14 of the present invention, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight Made of material 4, a plurality of cavity formwork components are connected through connectors 21 to form a group assembly, and the distance between adjacent cavity formwork forms inner rib cavity 22.

The present invention is also characterized in that at least one of the upper plate 1 and the lower bottom 3 of the cavity formwork member protrudes from a pick-up plate 23 or a pick-up plate 23 that exposes reinforcements 5 . Fig. 15 is a schematic structural view of Embodiment 15 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight. Material 4 is made, and its bottom 3 stretches out to have pick-up plate 23.

The present invention is also characterized in that a plurality of cavity formwork components are connected as a whole through pick-up plates 23 to form a group assembly, and an inner rib cavity 22 is formed between the cavity formwork components. Fig. 16 is a schematic structural view of Embodiment 16 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the upper plate 1, the surrounding side walls 2 and the lower bottom 3 are all lightweight. The material 4 is made, and its multiple cavity formwork components are connected as a whole through the picking plate 23 to form a group assembly, and the distance between the cavity formwork components forms the inner rib cavity 22 .

When the present invention is implemented, ceramsite concrete can be used to make an open cavity formwork member in the mold, and the open cavity formwork member can be obtained after demoulding and curing until the specified age, and then, the lower bottom 3 is made in the lower bottom mould. , the slurry of the lower bottom 3 can be made of ceramsite concrete, and a steel mesh reinforcement 5 can also be placed in the lower bottom 3. 3 are bonded into a whole, after the lower bottom 3 is set and hardened, it is demoulded, and cured to a specified age, that is, a cavity formwork member is obtained.

Claims (16)

1. A cavity formwork member, comprising an upper plate (1), surrounding side walls (2), and a lower bottom (3), surrounded by an upper plate (1), surrounding side walls (2), and a lower bottom (3) The polyhedral cavity formwork component is characterized in that at least one base layer of the upper plate (1), surrounding side walls (2) and lower bottom (3) of the cavity formwork component is made of lightweight material (4). 2. A cavity formwork member according to claim 1, characterized in that at least one of the upper plate (1), surrounding side walls (2), and lower bottom (3) contains reinforcements (5 ), or the reinforcements (5) are exposed, or the reinforcements (5) in each protrude into the matrix of adjacent components and tie each other. 3. A cavity formwork member according to claim 1, characterized in that said lightweight material (4) is foamed plastics, expanded perlite, expanded vermiculite, ceramsite concrete, cement-bonded foamed plastic particles At least one of concrete, air-entrained concrete or foamed concrete. 4. A cavity formwork member according to claim 1, characterized in that the upper plate (1) or the surrounding side walls (2) or the lower bottom (3) are provided with convenient handling parts ( 6). 5. A cavity formwork member according to claim 1, characterized in that at least one of the upper plate (1), surrounding side walls (2) or lower bottom (3) is provided with at least one stack Composite layer (7). 6. A cavity formwork member according to claim 5, characterized in that the laminated layer (7) is plastic board, thin iron sheet, mortar board, fiberboard, waterproof cardboard, concrete board, lightweight aggregate board, lightweight board or foam board. 7. A cavity formwork component according to any one of claims 1 to 6, characterized in that the shape of the cavity formwork component in horizontal section or vertical section is rectangle, square, polygon, Curved polygon, chamfered polygon, polyarc, corrugated, or circular. 8. A cavity formwork member according to any one of claims 1 to 6, characterized in that the cavity formwork member is provided with grooves (8), inner corners (9), At least one of a chamfer (10), a pit (11), a hole (12), a boss module (13), a convex line (14), and an external angle (15). 9. A cavity formwork member according to claim 8, characterized in that the grooves (8), internal corners (9), chamfers (10), and convex lines (14) are formed by themselves or each other. Parallel, orthogonal, oblique, or interchange settings. 10. A cavity formwork member according to any one of claims 1 to 6, characterized in that stiffeners (16), stiffeners (17), at least one of stiffeners (18), or at least one of stiffeners (16), stiffeners (17), stiffeners (18) is exposed outside the cavity formwork member, or stiffeners (16 ), stiffeners (17), stiffeners (18) and reinforcements (5) are exposed, or stiffeners (16), stiffeners (17), stiffeners (18) are superimposed on the wall of the cavity member or After stacking, exposed ribs and net reinforcements (5). 11. A cavity formwork member according to any one of claims 1 to 6, characterized in that the outer surfaces of the upper plate (1), surrounding side walls (2) and lower bottom (3) At least one of the surfaces is a corrugated, serrated, brushed or matte outer surface. 12. A cavity formwork member according to any one of claims 1 to 6, characterized in that a positioning member (20) is arranged on the cavity formwork member. 13. A cavity form member according to any one of claims 1 to 6, characterized in that the cavity form member is provided with a connecting piece for connecting the cavity form members to each other (twenty one). 14. A cavity formwork component according to claim 13, characterized in that at least two cavity formwork components are connected through connectors (21) to form a group assembly, and the cavity formwork components Constitute the inner rib mold cavity (22). 15. A cavity formwork member according to any one of claims 1 to 6, characterized in that at least one of the upper plate (1) and the lower bottom (3) of the cavity formwork member protrudes There is a pick plate (23) or a pick plate (23) with reinforcements (5). 16. A cavity formwork member according to claim 15, characterized in that a plurality of cavity formwork components are connected as a whole through pick-up plates (23) to form a group assembly, and the cavity formwork components form an inner Rib cavity (22).

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