CN1289765C - A cavity formwork component for cast-in-place concrete - Google Patents

Abstract

A cast-in-place concrete cavity shuttering member comprises an upper board (1), peripheral side panels (2) and a lower bottom (3), wherein the upper board (1), the peripheral side panels (2) and the lower bottom (3) enclose a polyhedral cavity shuttering member, the lower bottom (3) extends out from at least one peripheral side panel (2) to form a cantilever board (4), and the cast-in-place concrete cavity shuttering member is characterized in that a negative angle (5) is arranged at least one vertical corner of the cavity shuttering member, and the lower bottom (3) is overlapped with a template (7) to form an overlapped lower bottom together. Thus, after the hollow shuttering member is applied to the cast-in-situ concrete hollow building cover, the reentrant corner can form the reinforced rib of the cast-in-situ concrete pier or column or pier column, thereby effectively eliminating the stress concentration of the building cover, preventing the generation of cracks, bearing larger concentrated load action without damage, and being applicable to the cast-in-situ reinforced concrete or prestressed reinforced concrete hollow building cover, room cover, wall, foundation slab and open web bridge.

Description

A cavity formwork component for cast-in-place concrete

(1) Technical field

The invention relates to a cavity formwork component for cast-in-place concrete.

(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 The formwork includes "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. This cavity formwork member has light weight, high strength, simple structure, Convenient construction and transportation. 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. In addition, this kind of polyhedral cavity formwork member, for The construction formwork is saved, and the lower bottom can also protrude from the surrounding side walls to form a pick-up plate, which can be used as a structural formwork for the cast-in-place concrete ribs between the cavity formwork components, which is conducive to improving the construction speed and reducing the construction cost. At the same time, This cavity formwork member also has the characteristics of simple structure, high strength, anti-deformation, excellent anti-vibration performance, easy manufacture, and low cost. However, the vertical corner of this cavity formwork member is affected by the impact of the floor The force is more complex, the stress is more concentrated, and it is easy to produce cracks, or even crack and damage. Therefore, it is urgent to develop a new type of cavity formwork component for cast-in-place concrete.

(3) Contents of the invention

The object of the present invention is to provide a cavity formwork member for cast-in-place concrete, which has the characteristics of improving the mechanical properties of the floor, reducing stress concentration, and preventing cracks after being applied to the cast-in-place concrete hollow floor.

The solution of the present invention is on the basis of prior art, comprises upper plate, surrounding side wall, lower bottom, and upper plate, surrounding side wall, lower bottom encircle polyhedron cavity formwork member, and lower bottom is from at least one surrounding side The wall protrudes to form a pick-up plate, which is characterized in that at least one vertical corner of the cavity formwork member is provided with a female corner, and the lower bottom and the formwork are superimposed to form a superimposed lower bottom. In this way, after the cavity formwork component is applied to the cast-in-place concrete hollow floor, since the vertical corner of the cavity formwork component is set as a recessed corner, the cast-in-place concrete pier or column or pier column can be formed at the recessed corner. Reinforcing ribs can effectively eliminate the stress concentration of the floor, prevent cracks, and can withstand large concentrated loads without damage; at the same time, the composite lower bottom formed by the template and the lower bottom has a high , easy to manufacture and other characteristics, can realize flow production, greatly reduce the cost of cavity formwork components, and is conducive to the popularization and application of cavity formwork components; in addition, cavity formwork components also have simple structure, high strength, resistance Deformation, excellent anti-vibration performance, easy manufacture, low cost, convenient construction, fast construction speed, etc., thus achieving the purpose of the present invention, suitable for hollow floors, roofs, walls of cast-in-place reinforced concrete or prestressed reinforced concrete body, foundation floor and vierendeel bridges, especially for hollow beamless floors.

The present invention is also characterized in that the surrounding vertical corners of the cavity formwork member are all set as internal corners. In this way, when the cavity formwork member is applied to the cast-in-place concrete hollow floor, the cast-in-place concrete is poured into the inner corners of the vertical corners around the cavity formwork member to form the reinforcement of the shear pier or column or pier column. The rib structure greatly strengthens the strength and stiffness of the intersecting nodes of the cast-in-place concrete ribs, and improves the mechanical properties of the cast-in-place concrete floor.

The invention is also characterized in that the cavity form members are provided with internal corners at the peripheral lateral corners. In this way, when the cavity formwork component is applied to the cast-in-place concrete hollow floor, the cast-in-place concrete is poured into the inner corners at the lateral corners around the cavity formwork component, forming the upper plate of the cast-in-place concrete on the floor and the cast-in-place concrete. The reinforced rib structure at the junction of concrete ribs greatly improves the mechanical properties of the cast-in-place concrete hollow floor.

The present invention is also characterized in that the vertical internal corner and the horizontal internal corner are arranged orthogonally or obliquely, or at an intersection or in a circle. In this way, when the cavity formwork components are applied to the cast-in-place concrete floor, vertical or horizontal reinforcing piers, columns or ribs are formed inside the floor, which fully strengthens the internal stress members of the floor, greatly improving The bearing capacity and earthquake resistance of the floor.

The present invention is also characterized in that the lower bottom protrudes from the adjacent two sides of the surrounding side walls to form an L-shaped pick plate, or the lower bottom protrudes from the surrounding side walls to form a square ring-shaped pick plate. In this way, when the cavity formwork component is applied to the cast-in-situ concrete hollow floor, the protruding pick plate can replace the construction formwork, which reduces the loss of the formwork, and at the same time, saves the installation process of the formwork, greatly improving the construction efficiency , reducing the overall cost of the floor.

The present invention is also characterized in that the upper plate or the surrounding side walls or pick-up plates 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, reducing the work difficulty and work intensity of the above-mentioned processes.

The present invention is also characterized in that at least one side of the upper plate protrudes from a pick-up plate. In this way, when the cavity formwork component is applied to the cast-in-place concrete hollow floor, the protruding pick plate can form a laminated floor slab with the cast-in-place concrete, which reduces the amount of cast-in-place concrete and the overall cost of the floor; at the same time , when the cavity formwork member is applied to the hollow wall, the pick-up plates protruding from the upper plate and the lower bottom can be used as formwork on both sides of the wall, which can greatly improve the construction efficiency and reduce the construction cost.

The present invention is also characterized in that at least one of the upper plate, the surrounding side walls, the lower bottom, and the pick-up plate contains reinforcements, or has reinforcements exposed. The reinforcement is at least one of steel bar, steel wire, prestressed tendon, steel mesh, steel wire mesh, fiber, fiber tow, fiber mesh cloth, non-woven fabric, thin metal strip, packing tape, and braided tape. In this way, the above-mentioned reinforcements are contained in the upper plate, the surrounding side walls, the lower bottom, or the pick plate, which greatly improves their strength and rigidity, so that the cavity formwork components are not easily damaged during stacking, transportation, installation, and construction. Small area of damage, because of the connection of reinforcements, does not need to be repaired, and can continue to be put into use. 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 be greatly improved. 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 reinforcements extend into the side wall and are anchored in the lower bottom or the pick-up plate, or there are reinforcements in the lower bottom or pick-up plate that extend into and are anchored in the side wall. In this way, there are reinforcements in the side wall extending into and anchored in the lower bottom or the pick plate, or reinforcements in the lower bottom or the pick plate extend into and anchored in the side wall, thus greatly improving the distance between the side wall and the lower bottom. The connection strength between the cavity formwork components can effectively ensure that the cavity formwork components will not crack, loosen or fall off between the side wall and the lower bottom or the pick plate during transportation, installation, and construction, and the cavity formwork components will be greatly reduced. breakage rate.

The feature of the present invention is that the horizontal cross-sectional shape of the polyhedral cavity formwork member is rectangle, square, polygon, polygon with arc angle, polygon with inner angle, polygon with arc angle, corrugated shape or circle. 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, chamfers, pits, holes, boss modules, convex lines, and external 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 provided on the cavity formwork member can evacuate the unstressed concrete in the floor, further reduce the weight of the floor itself, save the amount of concrete, and reduce the cost of the floor.

The present invention is also characterized in that the internal angles, grooves, chamfers, and convex lines are arranged in parallel, orthogonal, oblique, or vertical intersections by themselves or with 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, a parallel, orthogonal, oblique or overpass cast-in-place concrete strengthening structure is correspondingly 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 stiffening ribs, stiffening rods, and reinforcing ribs is provided in the closed cavity of the cavity formwork member, or at least one of stiffening ribs and stiffening bars is exposed from the cavity formwork. There are reinforcements exposed outside the component, or on the stiffeners and stiffeners. In this way, when the cavity formwork member is applied to the cast-in-place concrete hollow floor, the stiffeners, stiffeners, stiffeners or exposed stiffeners and stiffeners arranged in the cavity formwork member can form a concrete structure with the cast-in-place concrete. The composite structure combining pouring and prefabrication optimizes the internal stress system of the cast-in-place concrete floor. 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 lightweight materials are arranged in the closed cavity of the cavity formwork member. In this way, the impact resistance of the cavity formwork member is greatly improved, and the damage rate of the product during construction and application is reduced. At the same time, it also makes the cavity formwork components have better sound insulation, heat insulation, and thermal insulation properties; lightweight materials can be foamed plastics, expanded perlite, expanded vermiculite, foamed or aerated lightweight concrete, rock wool, ore Cotton, glass wool, ceramsite or ceramsite concrete, etc., the variety of lightweight materials makes it easy to obtain nearby materials during production, which is conducive to reducing production costs.

The present invention is also characterized in that at least one of the upper plate or the side wall is a detachable movable part. In this way, it is convenient to check the condition inside the cavity formwork member at any time, and at the same time, it is also possible to partially or completely fill the interior of the cavity formwork member with lightweight materials, or install other components inside the cavity formwork member, such as junction boxes. , water and electricity pipelines, fire sprinklers, etc.

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 pick-up plate 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 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 and speed up the construction.

The present invention is also characterized in that at least two or more cavity formwork components are connected as a whole through pick-up plates, and an 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 the pick-up plates into one body, thus greatly improving the construction efficiency and construction speed of the floor.

The present invention is also characterized in that fixed or movable braces are arranged in the mold cavity of the inner rib. The supporting parts can be rods, cables, plates, tendons, wires, thin strips, piers, blocks, etc. In this way, due to the provision of braces, the damage rate of the grouped cavity formwork components is greatly reduced due to the support or tie effect of the braces during the transportation and construction of the grouped cavity formwork components. When it is placed in the cast-in-situ concrete hollow floor, the installation and construction speed is fast, the work efficiency is high, and the construction speed of the floor can be greatly improved.

(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, 4 is a pick plate, and 5 is an inner corner. In the following drawings, those with the same numbering have the same description. As shown in Figure 1, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding sidewall 2 to form a pick plate 4, and the cavity formwork member The surrounding vertical corners are provided with internal corners 5.

Fig. 2 is a schematic structural view of Embodiment 2 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are all set as internal corners 5 .

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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Internal corners 5 are provided at the vertical corners around the cavity formwork member, and internal corners 6 are also provided at the lateral corners around the cavity formwork member.

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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with internal corners 5, and the horizontal corners are also provided with internal corners 6, and the vertical internal corners 5 and horizontal internal corners 6 are arranged orthogonally or obliquely to each other.

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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with inner corners 5, and the lower bottom 3 thereof protrudes from two adjacent surrounding side walls 2 to form an L-shaped pick-up plate.

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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with inner corners 5, and the lower bottom 3 thereof is superimposed with the template 7 to form a superimposed lower bottom together.

Fig. 7 is a schematic structural view 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with inner corners 5, and the upper plate 1 has a pick plate 4 protruding outward.

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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with internal corners 5, and reinforcements 9 are provided in the upper plate 1, the surrounding side walls 2, the lower bottom 3 and the pick plate 4. At the same time, there are also The reinforcement 9 is exposed, and the reinforcement 9 is shown as a thin strip of metal.

Fig. 9 is a schematic structural view 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork component are provided with internal corners 5, and the horizontal section shape of the cavity formwork component is polygonal.

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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with female corners 5 , and the cavity formwork member is also provided with pits 12 , holes 13 , boss modules 14 and male corners 16 .

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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with internal corners 5, and the cavity formwork member is also provided with grooves 10, chamfers 11 and convex lines 15 at the same time.

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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with internal corners 5, and stiffeners 17, stiffeners 18 and ribs 19 are also provided in the closed cavity of the cavity formwork member. At the same time, the stiffeners 17 and Stiffeners 18 are partially exposed outside the cavity formwork member, and reinforcements 9 protrude outwards from the exposed stiffeners.

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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with internal corners 5, and the closed cavity of the cavity formwork member is filled with light material 20, and the light material 20 in the figure is expanded perlite.

Fig. 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with inner corners 5, and the upper plate 1 is a detachable movable fastening cover plate.

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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with inner corners 5, and the upper plate 1 and two opposite side walls 2 have corrugated outer surfaces.

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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with internal corners 5, and the cavity formwork member is also provided with a positioning member 21, and the positioning member 21 is a supporting positioning block in the figure.

Fig. 17 is a schematic structural view of Embodiment 17 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork components are provided with internal corners 5, and the cavity formwork components are provided with connectors 22 for connecting the cavity formwork components to each other. The connectors 22 shown in the figure are socket-type square tube.

Fig. 18 is a schematic structural view of Embodiment 18 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork components are provided with inner corners 5, and a plurality of cavity formwork components are connected as a whole through pick-up plates 4, and inner rib cavity 23 is formed between the cavity formwork components.

Fig. 19 is a schematic structural view of Embodiment 19 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork components are provided with inner corners 5, and multiple cavity formwork components are connected as a whole through the pick plate 4, and the inner rib cavity 23 is formed between the cavity formwork components, and the inner rib mold cavity 23 is formed between the cavity formwork components. A stretcher 24 is arranged in the cavity 23, and the stretcher 24 shown in the figure is a stretcher rod.

(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 a lower bottom 3. The upper plate 1, surrounding side walls 2, and lower bottom 3 form a polyhedral cavity formwork member, and the lower bottom 3 is formed from at least one surrounding The side wall 2 protrudes to form the pick plate 4, which is characterized in that at least one vertical corner of the cavity formwork member is provided with a female corner 5, and the lower bottom 3 and the template 7 are superimposed to form a superimposed lower bottom. 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, 4 is a pick plate, and 5 is an inner corner. In the following drawings, those with the same numbering have the same description. As shown in Figure 1, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding sidewall 2 to form a pick plate 4, and the cavity formwork member The surrounding vertical corners are provided with internal corners 5. As shown in Figure 6, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding sidewalls 2 to form a pick plate 4, and the cavity formwork member The vertical corners around are provided with internal corners 5, and the lower bottom 3 is superposed with the template 7 to form a superimposed lower bottom together.

The present invention is also characterized in that the vertical corners around the cavity formwork member are all set as internal corners 5 . Fig. 2 is a schematic structural view of Embodiment 2 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are all set as internal corners 5 .

The present invention is also characterized in that internal corners 6 are provided at the surrounding transverse corners of the cavity formwork member. 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Internal corners 5 are provided at the vertical corners around the cavity formwork member, and internal corners 6 are also provided at the lateral corners around the cavity formwork member.

The present invention is also characterized in that the vertical internal corner 5 and the horizontal internal corner 6 are arranged orthogonally or obliquely or vertically or circularly to each other. 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with internal corners 5, and the horizontal corners are also provided with internal corners 6, and the vertical internal corners 5 and horizontal internal corners 6 are arranged orthogonally or obliquely to each other.

The present invention is also characterized in that the lower bottom 3 protrudes from the adjacent two sides of the surrounding side wall 2 to form an L-shaped pick plate, or the lower bottom 3 protrudes from the surrounding side wall 2 to form a square pick plate 4. Ring pick plate. 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with inner corners 5, and the lower bottom 3 thereof protrudes from two adjacent surrounding side walls 2 to form an L-shaped pick-up plate.

The present invention is also characterized in that the upper plate 1 or the surrounding side wall 2 or pick plate 4 is provided with a transporting piece 8 for easy transport. The carrier 8 is a handle, a hook, a ring or other devices. As shown in Figure 6, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding sidewalls 2 to form a pick plate 4, and the cavity formwork member The vertical corners around are provided with internal corners 5, and the pick-up plate 4 is provided with a carrier 8 for easy transportation.

The present invention is also characterized in that at least one side of the upper plate 1 is protruded with a pick plate 4 . Fig. 7 is a schematic structural view 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with inner corners 5, and the upper plate 1 has a pick plate 4 protruding outward.

The present invention is also characterized in that at least one of the upper plate 1 , surrounding side walls 2 , lower bottom 3 and pick plate 4 contains reinforcements 9 or has reinforcements 9 exposed. The reinforcement 9 is at least one of steel bar, steel wire, prestressed tendon, steel mesh, steel wire mesh, fiber, fiber tow, fiber mesh cloth, non-woven fabric, thin metal strip, packing tape, and braided tape. 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with internal corners 5, and reinforcements 9 are provided in the upper plate 1, the surrounding side walls 2, the lower bottom 3 and the pick plate 4. At the same time, there are also The reinforcement 9 is exposed, and the reinforcement 9 is shown as a thin strip of metal.

The present invention is also characterized in that reinforcements 9 extend into and anchor in the lower bottom 3 or pick plate 4 in the side wall 2, or reinforcements 9 extend in and anchor in the side wall in the lower bottom 3 or pick plate 4. 2 within. As shown in Figure 8, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding sidewalls 2 to form a pick plate 4, and the cavity formwork member Inside corners 5 are arranged at the vertical corners around, and reinforcements 9 are inserted into and anchored in the pick-up plate 4 in the side wall 2, and the reinforcements 9 are thin metal strips as shown in the figure.

The feature of the present invention is that the horizontal cross-sectional shape of the polyhedral cavity formwork member is rectangle, square, polygon, polygon with arc angle, polygon with inner angle, polygon with arc angle, corrugated shape or circle. Fig. 9 is a schematic structural view 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork component are provided with internal corners 5, and the horizontal section shape of the cavity formwork component is polygonal.

The present invention is also characterized in that at least one of grooves 10 , chamfers 11 , pits 12 , holes 13 , boss modules 14 , protruding lines 15 and male corners 16 is 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with female corners 5 , and the cavity formwork member is also provided with pits 12 , holes 13 , boss modules 14 and male corners 16 . 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with internal corners 5, and the cavity formwork member is also provided with grooves 10, chamfers 11 and convex lines 15 at the same time.

The present invention is also characterized in that the internal corners 5, 6, the grooves 10, the chamfers 11, and the protruding lines 15 are arranged parallel, orthogonal, oblique, or vertical by themselves or each other. As shown in Figure 11, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding sidewalls 2 to form a pick plate 4, and the cavity formwork member The vertical corners around are provided with internal corners 5, and the internal corners 5, grooves 10, chamfers 11, and convex strips 15 provided on the cavity formwork members are arranged in parallel, orthogonal, oblique or vertical intersections by themselves or each other.

The present invention is also characterized in that at least one of stiffening ribs 17, stiffening rods 18, and reinforcing ribs 19 is arranged in the closed cavity of the cavity formwork member, or at least one of stiffening ribs 17 and stiffening rods 18 is arranged. The outside of the cavity formwork member is exposed, or the reinforcement 9 is exposed on the stiffening rib 17 and the stiffening rod 18 . 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with internal corners 5, and stiffeners 17, stiffeners 18 and ribs 19 are also provided in the closed cavity of the cavity formwork member. At the same time, the stiffeners 17 and Stiffeners 18 are partially exposed outside the cavity formwork member, and reinforcements 9 protrude outwards from the exposed stiffeners.

The present invention is also characterized in that a lightweight material 20 is arranged in the closed cavity of the cavity formwork member. 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with internal corners 5, and the closed cavity of the cavity formwork member is filled with light material 20, and the light material 20 in the figure is expanded perlite.

The present invention is also characterized in that at least one of the upper plate 1 or the side wall 2 is a detachable movable part. Fig. 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with inner corners 5, and the upper plate 1 is a detachable movable fastening cover plate.

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 pick plate 4 is corrugated, zigzag, brushed or rough. 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with inner corners 5, and the upper plate 1 and two opposite side walls 2 have corrugated outer surfaces.

The present invention is also characterized in that a positioning member 21 is provided on the cavity formwork member. 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork member are provided with internal corners 5, and the cavity formwork member is also provided with a positioning member 21, and the positioning member 21 is a supporting positioning block in the figure.

The present invention is also characterized in that the cavity formwork components are provided with connecting pieces 22 for connecting the cavity formwork components with each other. Fig. 17 is a schematic structural view of Embodiment 17 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork components are provided with internal corners 5, and the cavity formwork components are provided with connectors 22 for connecting the cavity formwork components to each other. The connectors 22 shown in the figure are socket-type square tube.

The present invention is also characterized in that at least two or more cavity formwork components are connected as a whole through the pick plate 4, and the inner rib cavity 23 is formed between the cavity formwork components. Fig. 18 is a schematic structural view of Embodiment 18 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork components are provided with inner corners 5, and a plurality of cavity formwork components are connected as a whole through pick-up plates 4, and inner rib cavity 23 is formed between the cavity formwork components.

The present invention is also characterized in that the inner rib mold cavity 23 is provided with fixed or movable braces 24 . Fig. 19 is a schematic structural view of Embodiment 19 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 lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. The vertical corners around the cavity formwork components are provided with inner corners 5, and multiple cavity formwork components are connected as a whole through the pick plate 4, and the inner rib cavity 23 is formed between the cavity formwork components, and the inner rib mold cavity 23 is formed between the cavity formwork components. A stretcher 24 is arranged in the cavity 23, and the stretcher 24 shown in the figure is a stretcher rod.

During the implementation of the present invention, cement binder and glass fiber mesh cloth or steel wire mesh can be used to form a multilayer structure of one layer of cement binder, one layer of glass fiber mesh cloth and one layer of binder in the mould. The vertical corner of the vertical corner is the cavity formwork member of the opening of the inner corner 5, demoulding and curing to the specified age, and the open cavity formwork member is obtained, and then the lower bottom 3 is made in the lower bottom mold, and the lower bottom 3 The slurry can adopt cement mortar or cement concrete, and reinforcements 9 such as steel bars or steel wire mesh can also be placed in the lower bottom 3. Bonded with the lower bottom 3 as a whole, after the lower bottom 3 solidifies and hardens, it is demoulded, and after curing to a specified age, a cavity formwork member for cast-in-situ concrete with a vertical inner corner 5 at the vertical corner is obtained.

Claims (20)

1, a kind of cast-in-place concrete hollow-cavity mould component, comprise upper plate (1), sidewall (2), go to the bottom (3) on every side, upper plate (1), sidewall (2), go to the bottom (3) surround the polyhedron cavity former component on every side, (3) sidewall (2) around at least one of going to the bottom stretches out and constitutes bridging piece (4), it is characterized in that being provided with inner corner trim (5) at least one vertical corner of cavity former component, (3) and the template (7) of going to the bottom is superimposed, constitutes superimposed going to the bottom jointly.

2, a kind of cast-in-place concrete hollow-cavity mould component according to claim 1 is characterized in that the vertical corner all around of cavity former component all is set to inner corner trim (5).

3, a kind of cast-in-place concrete hollow-cavity mould component according to claim 1 is characterized in that the lateral corner place all around of cavity former component is provided with inner corner trim (6).

4, a kind of cast-in-place concrete hollow-cavity mould component according to claim 3 is characterized in that described vertical inner corner trim (5) and laterally orthogonal thereto each other or oblique or grade separation or ring friendship setting of inner corner trim (6).

5, a kind of cast-in-place concrete hollow-cavity mould component according to claim 1, it is characterized in that described going to the bottom (3) stretch out bridging piece (4) from the adjacent both sides of sidewall (2) on every side and constitute L shaped bridging piece, perhaps go to the bottom (3) all stretch out the annular bridging piece in bridging piece (4) formation side around sidewall (2) on every side.

6, a kind of cast-in-place concrete hollow-cavity mould component according to claim 1 is characterized in that described upper plate (1) or sidewall (2) or bridging piece (4) are provided with the carrying part (8) of convenient carrying on every side.

7, a kind of cast-in-place concrete hollow-cavity mould component according to claim 1 is characterized in that at least one side of described upper plate (1) is extended with bridging piece (4).

8, a kind of cast-in-place concrete hollow-cavity mould component according to claim 1 is characterized in that described upper plate (1), contains reinforce (9) at least one of sidewall (2), go to the bottom (3), bridging piece (4) on every side, perhaps has reinforce (9) to expose.

9, a kind of cast-in-place concrete hollow-cavity mould component according to claim 8, it is characterized in that having in the described sidewall (2) reinforce (9) to stretch into and be anchored at going to the bottom (3) or bridging piece (4) in, go to the bottom (3) or bridging piece (4) in have reinforce (9) to stretch into and be anchored in the sidewall (2).

10,, it is characterized in that the horizontal profile of described polyhedron cavity former component is shaped as rectangle, square, polygon, arc angle polygon, inner corner trim polygon, multi sphere limit shape, corrugated or circular according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 9.

11,, it is characterized in that also being provided with on the described cavity former component at least one in groove (10), chamfering (11), pit (12), hole (13), boss module (14), raised line (15), the external corner (16) according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 9.

12, a kind of cast-in-place concrete hollow-cavity mould component according to claim 11 is characterized in that described inner corner trim (5,6), groove (10), chamfering (11), raised line (15) self or is parallel, quadrature, oblique or grade separation setting mutually.

13, according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 9, it is characterized in that being provided with in the enclosed cavity of described cavity former component at least one in stiffening rib (17), bracing boom (18), the reinforcing rib (19), perhaps have in stiffening rib (17), the bracing boom (18) at least one to expose outside the cavity former component, perhaps stiffening rib (17), bracing boom (18) are gone up and are also had reinforce (9) to expose.

14,, it is characterized in that being provided with light material (20) in the enclosed cavity of described cavity former component according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 9.

15,, it is characterized in that in described upper plate (1) or the sidewall (2) at least one is for dismountable movable part according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 9.

16,, it is characterized in that described upper plate (1), at least one in the external surface of sidewall (2), bridging piece (4) is corrugated, zigzag, plucking shape or exasperate external surface on every side according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 9.

17,, it is characterized in that described cavity former component is provided with align member (21) according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 9.

18,, it is characterized in that described cavity former component is provided with connector connected to one another (22) between the cavity former component according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 9.

19, according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 9, it is characterized in that at least two above cavity former components are connected as one by bridging piece (4), constitute internal-rib die cavity (23) between the cavity former component.

20, a kind of cast-in-place concrete hollow-cavity mould component according to claim 19 is characterized in that being provided with in the described internal-rib die cavity (23) fixed or movable support draw piece (24).

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