Concrete forming device

Abstract

The invention provides a concrete forming device which comprises a plurality of prefabricated formworks, the prefabricated formworks are made of bare concrete, a pouring cavity with a pouring opening is defined by the multiple prefabricated formworks, and a bonding matching part is arranged on the surface, facing the pouring cavity, of at least one prefabricated formwork; wherein the pouring cavity is used for containing concrete, and under the condition that the concrete and the surface, facing the pouring cavity, of the prefabricated formwork are bonded and formed, embedded matching is formed between the concrete and the bonding matching part, so that the poured concrete and the prefabricated formwork form a building structure. According to the concrete forming device, the prefabricated formwork made of fair-faced concrete is adopted as the outer surface of a building structure, the repairing workload after the building structure is formed is reduced, the construction efficiency is improved, and the bonding matching part is arranged on the surface, facing the pouring cavity, of the prefabricated formwork and is in embedded fit with the poured concrete; and the bonding strength between the concrete and the prefabricated formwork is improved, so that the formed building structure is more stable.

Description

Technical Field

[0001] This application relates to the technical field of building construction, and particularly to a concrete forming device. Background Art

[0002] Fair-faced concrete is a high-performance concrete whose surface can be directly used as a decorative surface without additional decoration. Fair-faced concrete has a natural texture and is widely used in modern architecture.

[0003] During construction, multiple formworks are used to enclose and form a pouring cavity, and fair-faced concrete is poured into the pouring cavity. After the fair-faced concrete is formed, the formworks are removed to form building structures such as walls and sculptures made of fair-faced concrete.

[0004] However, when making fair-faced concrete buildings by traditional methods, on-site processing of formworks is required, which is prone to errors. Moreover, when pouring and forming on the construction site, there will be many bubbles and sand holes on the surface of the fair-faced concrete building, and a large amount of repair work is needed, which affects the construction efficiency. Summary of the Invention

[0005] This application provides a concrete forming device, which uses precast formworks made of fair-faced concrete as the outer surface of the building structure. Due to the high dimensional accuracy and good surface quality of the precast formworks, the workload of repairing after the building structure is formed is reduced, and the construction efficiency is improved. Moreover, a bonding and matching part is arranged on the surface of the precast formwork facing the pouring cavity, which forms an embedded fit with the poured concrete, improving the bonding strength between the concrete and the precast formwork, and making the formed building structure more stable.

[0006] To achieve the above object, this application adopts the following technical solutions: This application provides a concrete forming device, which is characterized by including: Multiple precast formworks made of fair-faced concrete, the multiple precast formworks enclose and form a pouring cavity with a pouring opening, and at least one precast formwork has a bonding and matching part on the surface facing the pouring cavity; Wherein, the pouring cavity is used to hold concrete. When the concrete bonds and forms on the surface of the precast formwork facing the pouring cavity, an embedded fit is formed between the concrete and the bonding and matching part, so that the poured concrete and the precast formwork form a building structure.

[0007] In some possible implementation manners, the bonding and matching part is a protrusion. When the poured concrete bonds and forms on the surface of the precast formwork facing the pouring cavity, the protrusion is embedded in the concrete; Or, the bonding and matching part is a groove. When the poured concrete bonds and forms on the surface of the precast formwork facing the pouring cavity, the concrete is embedded in the groove; Alternatively, the bonding and mating part is a concave-convex structure. When the cast concrete adheres to the surface of the precast formwork facing the casting cavity, the concrete and the concave-convex structure are mutually embedded and mated.

[0008] In some possible implementation manners, the bonding and mating part is formed by roughening treatment, grooving treatment or chiseling treatment on the surface of the precast formwork facing the casting cavity.

[0009] In some possible implementation manners, the concrete forming device further includes a fastening assembly. A plurality of precast formworks are assembled to form a casting cavity, and the plurality of precast formworks are fixed by the fastening assembly.

[0010] In some possible implementation manners, the fastening assembly includes a connecting member and a limiting buckle. The precast formwork includes a first precast formwork and a second precast formwork arranged oppositely. The connecting member passes through the through holes respectively provided in the first precast formwork and the second precast formwork. The limiting buckle is sleeved and locked on the connecting member. Limiting buckles are provided on both sides of the first precast formwork and both sides of the second precast formwork, and the first precast formwork and the second precast formwork are respectively limited by the limiting buckles.

[0011] In some possible implementation manners, the precast formwork includes a first precast formwork and a third precast formwork arranged adjacent to each other. The fastening assembly includes a connecting member, a sleeve member, a screw rod and a nut; The connecting member includes a first connecting member and a second connecting member. The first connecting member passes through the through hole provided in the first precast formwork, and the second connecting member passes through the through hole provided in the third precast formwork. The sleeve member includes a first sleeve member and a second sleeve member. The first sleeve member is sleeved on the first connecting member, and the second sleeve member is sleeved on the second connecting member; The screw rod includes a first screw rod and a second screw rod. One end of the first screw rod is threadedly connected to the first sleeve member, and the other end of the first screw rod is threadedly connected to one end of the nut. One end of the second screw rod is threadedly connected to the second sleeve member, and the other end of the second screw rod is threadedly connected to the other end of the nut.

[0012] In some possible implementation manners, the sleeve member includes a body, a mounting portion and a connecting portion. The body is sleeved on the connecting member. The mounting portion is fixedly connected to the side of the body away from the connecting member, and the mounting portion is provided with a mounting hole; The first end of the connecting portion is located in the mounting hole, the second end of the connecting portion extends out of the mounting hole, and the second end of the connecting portion is provided with a threaded hole for connecting with the screw rod; Wherein, there is a gap between the first end of the connecting portion and the mounting hole, and the mounting hole has a limiting portion for restricting the first end of the connecting portion from disengaging from the mounting hole.

[0013] In some possible implementation manners, the connecting member has light transmittance, and the connecting member is made of epoxy resin.

[0014] In some possible implementations, the forming device further includes a plurality of reinforcing plates. The plurality of reinforcing plates are arranged in a spliced manner and are attached to the side of the plurality of precast templates facing away from the casting cavity. The plurality of reinforcing plates and the plurality of precast templates are fixed by fastening components.

[0015] In some possible implementations, the splicing seams between adjacent arranged reinforcing plates are arranged in a staggered manner with the splicing seams between adjacent arranged precast templates.

[0016] As can be seen from the above technical solutions, the present application has at least the following beneficial effects: The concrete forming device provided by the present application includes a casting cavity formed by enclosing a plurality of precast templates. The casting cavity is used to accommodate concrete. The precast templates are prefabricated in a factory with high dimensional accuracy and stable quality. The precast templates only need to be installed on site, which is beneficial to quickly complete the preparation work before concrete pouring and shorten the overall construction period. The precast templates are made of fair-faced concrete, and the surface of the precast templates has the same texture and pattern as fair-faced concrete. When the poured concrete is bonded and formed with the precast templates, the concrete and the precast templates form a building structure. The precast templates serve as the decorative surface of the building structure. Due to the high surface quality, the workload of repair is reduced, and the construction efficiency is improved. Moreover, the precast templates can be prefabricated with specific textures, patterns, etc. according to design requirements to achieve complex textures and artistic effects. The surface of the precast templates facing the casting cavity is provided with a bonding matching part. When the concrete is bonded and formed with the surface of the precast templates facing the casting cavity, an embedded fit is formed between the concrete and the bonding matching part, which improves the bonding strength between the concrete and the precast templates and makes the formed building structure more stable.

[0017] It should be understood that the description of technical features, technical solutions, beneficial effects or similar languages in the present application does not imply that all features and advantages can be achieved in any single embodiment. On the contrary, it can be understood that the description of features or beneficial effects means that specific technical features, technical solutions or beneficial effects are included in at least one embodiment. Therefore, the description of technical features, technical solutions or beneficial effects in this specification does not necessarily refer to the same embodiment. Furthermore, the technical features, technical solutions and beneficial effects described in this embodiment can be combined in any appropriate manner. Those skilled in the art will understand that an embodiment can be implemented without one or more specific technical features, technical solutions or beneficial effects of a specific embodiment. In other embodiments, additional technical features and beneficial effects can also be identified in specific embodiments that do not embody all embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the concrete forming device provided by the present application in a specific embodiment; Figure 2 ForFigure 1 Top view; Figure 3 is Figure 1 Front view of the fastening assembly in Figure 4 is Figure 2 Enlarged view of part I in Figure 5 Schematic diagram of the limit buckle provided by the present application in a specific embodiment; Figure 6 Schematic diagram of the socket provided by the present application in a specific embodiment; Figure 7 is Figure 6 Cross-sectional view of Figure 8 Schematic diagram of the screw rod provided by the present application in a specific embodiment; Figure 9 Schematic diagram of the nut provided by the present application in a specific embodiment.

[0019] Reference numerals: 10 - precast template; 11 - first precast template; 12 - second precast template; 13 - third precast template; 14 - fourth precast template; 20 - pouring cavity; 30 - fastening assembly; 31 - connecting member; 311 - first connecting member; 312 - second connecting member; 32 - limit buckle; 321 - clamping portion; 322 - bolt; 323 - nut; 33 - socket; 331 - first socket; 332 - second socket; 333 - body; 334 - installation portion; 335 - connecting portion; 34 - screw rod; 341 - first screw rod; 342 - second screw rod; 35 - nut; 40 - reinforcing plate; 41 - first reinforcing plate; 42 - second reinforcing plate; 43 - third reinforcing plate; 44 - fourth reinforcing plate; X - first direction. Detailed implementation manners

[0020] Terms such as "first", "second", and "third" in the description and drawings of the present application are used to distinguish different objects, rather than to limit a specific order.

[0021] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific manner.

[0022] For the sake of clear and concise description of the following embodiments, a brief introduction to the related art is given first: Fair-faced concrete is a high-performance concrete whose surface is directly used as a decorative surface without additional decoration. It has a natural texture and is widely used in modern architecture. Traditional fair-faced concrete construction mainly relies on on-site casting and formwork shaping, but there are the following problems: Processing formwork on the construction site prolongs the construction period. Processing on-site is prone to errors, resulting in loose formwork joints, which are likely to leave marks on the formed concrete surface. Moreover, when casting on the construction site, there will be many defects such as air bubbles and sand holes on the surface of the formed concrete, requiring a large amount of repair work.

[0023] In view of this, the embodiments of the present application provide a concrete forming device, including a pouring cavity formed by enclosing multiple precast formworks. The pouring cavity is used to hold concrete. The precast formworks are prefabricated in the factory with high dimensional accuracy and stable quality. The precast formworks only need to be installed on-site, which is conducive to quickly completing the preparation work before concrete pouring and shortening the overall construction period. The precast formworks are made of fair-faced concrete, and the surface of the precast formworks has the same texture and pattern as fair-faced concrete. When the poured concrete bonds and forms with the precast formworks, the concrete and the precast formworks form a building structure, and the precast formworks serve as the decorative surface of the building structure. Due to the high surface quality, the amount of repair work is reduced, and the construction efficiency is improved. Moreover, the precast formworks can be prefabricated with specific textures, patterns, etc. according to design requirements to achieve complex textures and artistic effects. A bonding and matching part is arranged on the surface of the precast formworks facing the pouring cavity. When the concrete bonds and forms with the surface of the precast formworks facing the pouring cavity, an embedded fit is formed between the concrete and the bonding and matching part, improving the bonding strength between the concrete and the precast formworks and making the formed building structure more stable.

[0024] The following introduces the concrete forming device provided by the embodiments of the present application. As Figure 1-2 shown, the concrete forming device includes multiple precast formworks 10 made of fair-faced concrete. The multiple precast formworks 10 enclose to form a pouring cavity 20 with a pouring port. At least one precast formwork 10 has a bonding and matching part arranged on the surface facing the pouring cavity 20. Among them, the pouring cavity 20 is used to hold concrete. When the concrete bonds and forms with the surface of the precast formworks 10 facing the pouring cavity 20, an embedded fit is formed between the concrete and the bonding and matching part, so that the poured concrete and the precast formworks 10 form a building structure.

[0025] Among them, the precast formwork 10 is produced in the factory, less affected by environmental factors, and can strictly control the dimensional accuracy and appearance quality, ensuring that each precast formwork 10 meets high quality standards, making the integrity of the casting cavity 20 formed by enclosing multiple precast formworks 10 relatively high, and reducing the situation of joint marks left on the outer surface of the building structure after the concrete is formed; the precast formwork 10 is transported from the factory to the construction site, and the precast formwork 10 only needs to be installed at the construction site, which is conducive to quickly completing the preparatory work before concrete pouring, shortening the overall construction period. Moreover, the precast formwork 10 is made of fair-faced concrete, so that the surface of the precast formwork 10 has the same texture and grain as fair-faced concrete, and the precast formwork 10 can be directly used as a decorative surface. Furthermore, the precast formwork 10 can be prefabricated with specific textures, patterns, etc. according to design requirements to achieve complex textures and artistic effects.

[0026] During on-site construction, concrete is poured into the casting cavity 20 enclosed by the precast formwork 10 through the pouring port. When the concrete is bonded and formed on the surface of the precast formwork 10 facing the casting cavity 20, the concrete and the precast formwork 10 form a building structure. The outer surface of the precast formwork 10 made of fair-faced concrete is used as the decorative surface of the building structure. The outer surface quality of the precast formwork 10 is relatively high, reducing the repair workload and improving the construction efficiency. This building structure can directly be used to decorate buildings such as building facades and interior decorations, and there is no need to apply decorative materials on the outer surface of the building structure.

[0027] At least one surface of the precast formwork 10 facing the casting cavity 20 is provided with a bonding and matching part. When the concrete is bonded and formed on the surface of the precast formwork 10 facing the casting cavity 20, an embedded fit is formed between the concrete and the bonding and matching part, increasing the contact area between the concrete and the precast formwork 10, improving the friction and biting force between the concrete and the precast formwork 10, and further improving the bonding strength between the concrete and the precast formwork 10, making the formed building structure more stable.

[0028] In order to further improve the bonding strength between the precast formwork 10 and the poured concrete, it is possible that each surface of the multiple precast formworks 10 enclosing the casting cavity 20 facing the casting cavity 20 is provided with a bonding and matching part.

[0029] In a specific embodiment, the bonding and matching part is formed by roughening the surface of the precast formwork 10 facing the casting cavity 20 to enhance the bonding force with the concrete.

[0030] Among them, after the surface of the prefabricated formwork 10 is roughened, its surface area increases significantly. According to the bonding theory, the bonding force is proportional to the contact area of the bonding interface. The rough surface provides more contact points and contact area, enabling more molecular interactions between the prefabricated formwork 10 and the concrete, thereby enhancing the bonding strength; the rough surface can distribute the stress on the bonding interface over a larger area, reducing the degree of stress concentration, enabling the bonding interface to bear external forces more evenly, and thus improving the reliability and durability of the bond; the rough surface of the prefabricated formwork 10 is conducive to better penetration of the poured concrete, making the combination between the prefabricated formwork 10 and the concrete closer and enhancing the bonding performance of the bonding interface.

[0031] The bonding and mating part can be formed, for example, by roughening treatment or grooving treatment or chiseling treatment on the surface of the prefabricated formwork 10 facing the pouring cavity 20.

[0032] Among them, the roughness of the surface of the prefabricated formwork 10 after roughening treatment is less than the roughness of the surface of the prefabricated formwork 10 after grooving treatment, and the roughness of the surface of the prefabricated formwork 10 after grooving treatment is less than the roughness of the surface of the prefabricated formwork 10 after chiseling treatment.

[0033] The roughening treatment is, for example, removing the weak cement slurry shell-like structure formed on the surface of the substrate by a wire brush, increasing the contact area during the bonding process, and having an effect of enhancing the bonding force.

[0034] After the prefabricated formwork 10 is grooved, the poured concrete can well penetrate and fill in the grooves formed by cutting, forming a mechanical connection with the prefabricated formwork 10, and further enhancing the bonding force between the prefabricated formwork 10 and the concrete.

[0035] The surface of the prefabricated formwork 10 after chiseling treatment greatly increases the effective contact area of the bonding interface between the prefabricated formwork 10 and the concrete, making it easier for the poured concrete to penetrate into the surface of the prefabricated formwork 10 and greatly improving the bonding force.

[0036] Specifically, the bonding and mating part includes a geometric shape structure provided on the surface of the prefabricated formwork 10 for enhancing the bonding force between the concrete and the prefabricated formwork 10.

[0037] In the case where the poured concrete and the prefabricated formwork 10 are bonded and formed, the geometric shape structure forms an embedded fit with the concrete, increasing the friction and bite force between the two, and effectively improving the bonding force.

[0038] In a specific embodiment, the bonding and mating part is a protrusion. In the case where the poured concrete and the surface of the prefabricated formwork 10 facing the pouring cavity 20 are bonded and formed, the protrusion is embedded in the concrete.

[0039] In another specific embodiment, the bonding and mating part is a groove. When the cast concrete is bonded and formed on the surface of the precast formwork 10 facing the casting cavity 20, the concrete is embedded in the groove.

[0040] In yet another specific embodiment, the bonding and mating part is a concave-convex structure. When the cast concrete is bonded and formed on the surface of the precast formwork 10 facing the casting cavity 20, the concrete and the concave-convex structure are mutually embedded and mated.

[0041] To further improve the bonding force between the precast formwork 10 and the cast concrete, a bonding coating is also formed on the surface of the precast formwork 10 facing the casting cavity 20. The bonding coating is formed by curing an interfacial agent coated on the surface of the precast formwork 10.

[0042] Before casting the concrete, an interfacial agent is applied to the surface of the precast formwork 10 facing the casting cavity 20. After the interfacial agent is cured, the concrete is cast. The cured interfacial agent forms a bonding coating, which can be tightly combined with the surface of the precast formwork 10, providing a good bonding surface for the newly cast concrete, enabling a reliable bond to be formed between the precast formwork 10 and the newly cast concrete, thereby ensuring the integrity and mechanical properties of the structure; the cured interfacial agent can prevent the intrusion of moisture, air and other harmful substances, reduce the loss of moisture after the concrete is cast, provide favorable conditions for the hydration reaction of the concrete, and help improve the strength and durability of the concrete; the surface state of the cured interfacial agent is relatively stable, facilitating operations such as vibration and troweling by construction workers when casting concrete on it, and ensuring the forming quality of the concrete.

[0043] Among them, the interfacial agent is preferably an epoxy resin interfacial agent, which has high corrosion resistance, mechanical properties and bonding strength.

[0044] In one specific embodiment, as Figure 3 and in combination with Figure 1 , the concrete forming device further includes a fastening assembly 30. A plurality of precast formworks 10 are assembled to form a casting cavity 20, and the plurality of precast formworks 10 are held fixed by the fastening assembly 30.

[0045] Specifically, as Figure 1 and in combination with Figure 4 , the fastening assembly 30 includes a connecting member 31 and a limit buckle 32. The precast formwork 10 includes a first precast form 11 and a second precast form 12 arranged opposite to each other. The connecting member 31 passes through through holes respectively provided in the first precast form 11 and the second precast form 12, and the limit buckle 32 is sleeved and locked on the connecting member 31. Limit buckles 32 are provided on both sides of the first precast form 11 and both sides of the second precast form 12, and the first precast form 11 and the second precast form 12 are respectively limited by the limit buckles 32.

[0046] AsFigure 1 As shown, the limit buckles 32 on both sides of the first precast formwork 11 restrict the movement of the first precast formwork 11 along the first direction X, and the limit buckles 32 on both sides of the second precast formwork 12 restrict the movement of the second precast formwork 12 along the first direction X.

[0047] The limit buckles 32 can be sleeved on the connecting member 31. When the limit buckles 32 are in the position where they fit the precast formwork 10, the limit buckles 32 can be locked on the connecting member 31, and the two remain fixed; when it is necessary to remove the limit buckles 32, the limit buckles 32 are unlocked.

[0048] For the fixing method between other relatively arranged precast formworks 10 among the multiple precast formworks 10, refer to the fixing method of the first precast formwork 11 and the second precast formwork 12.

[0049] In this embodiment, every two relatively arranged precast formworks 10 can be fixed by the combination of the connecting member 31 and the limit buckles 32, which is convenient for installation and disassembly and is beneficial to improving the construction efficiency.

[0050] Among them, the connecting member 31 can be a connecting rod or a connecting bar, etc.

[0051] Specifically, as Figure 4 and in combination with Figure 5 , the limit buckle 32 includes two clamping portions 321, two bolts 322 and two nuts 323. Through holes are respectively provided on both sides of the clamping portion 321; during installation, the two clamping portions 321 are respectively butted and sleeved on the connecting member 31, and both sides of the two clamping portions 321 are fixed by the bolts 322 and the nuts 323 respectively, so that the two clamping portions 321 are locked on the connecting member 31; during disassembly, the connection between the bolts 322 and the nuts 323 is released, the two clamping portions 321 are separated, and they are removed from the connecting member 31.

[0052] Specifically, as Figure 1As shown, the prefabricated formwork 10 includes a first prefabricated formwork 11 and a third prefabricated formwork 13 arranged adjacent to each other. The fastening assembly 30 includes a connecting member 31, a socket member 33, a screw 34, and a nut 35. The connecting member 31 includes a first connecting member 311 and a second connecting member 312. The first connecting member 311 passes through a through hole provided in the first prefabricated formwork 11, and the second connecting member 312 passes through a through hole provided in the third prefabricated formwork 13. The socket member 33 includes a first socket member 331 and a second socket member 332. The first socket member 331 is sleeved on the first connecting member 311, and the second socket member 332 is sleeved on the second connecting member 312. The screw 34 includes a first screw 341 and a second screw 342. One end of the first screw 341 is threadedly connected to the first socket member 331, and the other end of the first screw 341 is threadedly connected to one end of the nut 35. One end of the second screw 342 is threadedly connected to the second socket member 332, and the other end of the second screw 342 is threadedly connected to the other end of the nut 35.

[0053] As Figure 6-9 shown, the socket member 33 has a mating hole, and the socket member 33 is sleeved on the connecting member 31 through the mating hole. A threaded hole is provided in the socket member 33. Opposite ends of the screw 34 each have a threaded section, and the nut 35 is provided with internal threads. The threaded section at one end of the screw 34 is threadedly connected to the threaded hole of the socket member 33, and the threaded section at the other end of the screw 34 is threadedly connected to the internal threads of the nut 35. Among them, the length of the threaded section at the end where the screw 34 is connected to the nut 35 is greater than the length of the nut 35, so that the nut 35 can be fully screwed onto the threaded section of the screw 34.

[0054] When fixing the adjacent first prefabricated formwork 11 and third prefabricated formwork 13, the first connecting member 311 can be passed through the through hole of the first prefabricated formwork 11, the first socket member 331 can be sleeved on the first connecting member 311, one end of the first screw 341 can be threadedly connected to the first socket member 331, and the nut 35 can be fully screwed onto the other end of the first screw 341. The second connecting member 312 is passed through the through hole of the second prefabricated formwork 12, the second socket member 332 is sleeved on the second connecting member 312, one end of the second screw 342 is threadedly connected to the second socket member 332, the other end of the second screw 342 is aligned with the end of the first screw 341 where the nut 35 is connected, and the nut 35 is screwed in the direction of withdrawing from the first screw 341 so that the nut 35 is screwed onto the other end of the second screw 342 until the first screw 341 and the second screw 342 are tightened, then stop screwing the nut 35. At this time, the adjacent first prefabricated formwork 11 and third prefabricated formwork 13 are kept relatively fixed.

[0055] The fixing method between other adjacent prefabricated formworks 10 among multiple prefabricated formworks 10 refers to the fixing method of the first prefabricated formwork 11 and the third prefabricated formwork 13.

[0056] In this embodiment, every two adjacent precast templates 10 can be fixed by a combination of a connecting piece 31, a socket piece 33, a screw 34 and a nut 35. The connection is stable and firm. After the concrete pouring is completed, only the parts connected by threads need to be disconnected, which is convenient for disassembly. Moreover, the socket piece 33, the screw 34 and the nut 35 can be reused, saving costs.

[0057] Among them, as Figure 6 shown, the socket piece 33 is provided with a plurality of threaded holes along its circumferential direction, so that the socket piece 33 can be connected to the corresponding screw 34 in multiple directions to adapt to the situation where at least three precast templates 10 are arranged adjacent to each other in pairs.

[0058] The fastening assembly 30 includes a plurality of connecting pieces 31, a plurality of limit buckles 32, a plurality of socket pieces 33, a plurality of screws 34 and a plurality of nuts 35, so that a plurality of precast templates 10 are stably joined together by being arranged oppositely and adjacently.

[0059] Specifically, as Figure 6-7 shown, the socket piece 33 includes a body 333, a mounting portion 334 and a connecting portion 335. The body 333 is used for sleeving on the connecting piece 31. The mounting portion 334 is fixedly connected to the side of the body 333 away from the connecting piece 31, and the mounting portion 334 is provided with a mounting hole; the first end of the connecting portion 335 is located in the mounting hole, the second end of the connecting portion 335 extends outside the mounting hole, and the second end of the connecting portion 335 is provided with a threaded hole for connecting with the screw 34; among them, there is a gap between the first end of the connecting portion 335 and the mounting hole of the mounting portion 334, and the mounting hole has a limiting portion for limiting the first end of the connecting portion 335 from disengaging from the mounting hole.

[0060] Taking the process of fixing the first precast template 11 and the third precast template 13 arranged adjacent to each other as an example, one end of the first screw 341 is threadedly connected to the first socket piece 331, and one end of the second screw 342 is threadedly connected to the second socket piece 332; since there is a gap between the connecting portion 335 of the socket piece 33 and the mounting hole of the mounting portion 334, the connecting portion 335 can rotate slightly along the Figure 7 shown direction A, that is, the first screw 341 can rotate slightly relative to the first socket piece 331, and the second screw 342 can rotate slightly relative to the second socket piece 332, so that the first screw 341 and the second screw 342 can be aligned, and the first screw 341 and the second screw 342 can be accurately connected to the nut 35 respectively. Moreover, the mounting hole of the mounting portion 334 has a limiting portion that limits the first end of the connecting portion 335 from disengaging from the mounting hole, so that the first screw 341 and the second screw 342 can be tightened.

[0061] The socket member 33 provided in this embodiment has a gap between the first end of the connecting portion 335 and the mounting hole of the mounting portion 334, enabling the connecting portion 335 to rotate slightly relative to the mounting portion 334, so that the first screw 341 and the second screw 342 can be aligned and then connected by the nut 35 to accommodate construction errors and material defects, reduce internal force concentration, and lower the risk of structural damage.

[0062] Among them, as Figure 7 shown, the outer surface of the first end of the connecting portion 335 can be spherical, making it easier for the first end of the connecting portion 335 to rotate in the mounting hole.

[0063] As Figure 7 shown in the embodiment, the mounting hole can be a tapered hole. The large end of the tapered hole is relatively closer to the body 333, and the small end of the tapered hole is relatively farther from the body 333. The aperture of the small end of the tapered hole is smaller than the width of the first end of the connecting portion 335. The small end of the tapered hole is formed as a limiting portion to restrict the first end of the connecting portion 335 from disengaging from the mounting hole.

[0064] In other embodiments, the limiting portion can be a limiting boss extending into the mounting hole, and the limiting boss is used to restrict the first end of the connecting portion 335 from disengaging from the mounting hole.

[0065] In a specific embodiment, the connecting member 31 has light transmissivity, and the connecting member 31 is made of epoxy resin.

[0066] After the concrete is poured and completed, the part of the connecting member 31 that extends beyond the precast formwork 10 is cut off, and the cut surface is polished and buffed to make the connecting member 31 flush with the precast formwork 10.

[0067] In this embodiment, the connecting member 31 is made of epoxy resin and has light transmissivity, which can enhance the decorative effect of the building structure formed by the precast formwork 10. Moreover, when multiple building structures enclose an activity space, the light-transmitting connecting member 31 can introduce outdoor sunlight into the activity space, reducing the lighting power consumption.

[0068] As Figure 1-2 shown in the embodiment, the connecting member 31 is an epoxy resin rod.

[0069] During factory manufacturing, the precast formwork 10 reserves holes. When multiple precast formworks 10 are assembled together, solid epoxy resin rods are placed in the holes. The epoxy resin rods have high strength and good bonding performance, which can enhance the local bearing capacity of the hole part, improve crack resistance and impermeability, and extend the structural durability.

[0070] In a specific embodiment, as Figure 1-2As shown, the forming device further includes a plurality of reinforcing plates 40. The plurality of reinforcing plates 40 are assembled and arranged, and the plurality of reinforcing plates 40 are attached to the side of the plurality of precast templates 10 facing away from the casting cavity 20. The plurality of reinforcing plates 40 and the plurality of precast templates 10 are fixed by a fastening assembly 30.

[0071] When pouring concrete into the casting cavity 20, the reinforcing plate 40 provides lateral support for the precast template 10 to prevent damage to the precast template 10 under the impact of the concrete.

[0072] Specifically, the reinforcing plate 40 can be a metal plate. For example, the reinforcing plate 40 is an aluminum alloy plate.

[0073] Among them, the joint seams between adjacent arranged reinforcing plates 40 are arranged in a staggered manner with the joint seams between adjacent arranged precast templates 10.

[0074] With such an arrangement, the risk of concrete leakage between the joint seams of the precast templates 10 can be reduced.

[0075] Take Figure 1 the shown embodiment as an example, the assembly and use process of the concrete forming device in this embodiment are introduced as follows: Figure 1 The shown concrete forming device is in a cuboid shape and includes three groups of precast templates 10 and three groups of reinforcing plates 40 arranged in the height direction. Taking the top group of precast templates 10 and a group of reinforcing plates 40 as an example, this group of precast templates 10 includes a first precast template 11 and a second precast template 12 arranged opposite to each other in the width direction, and a third precast template 13 and a fourth precast template 14 arranged opposite to each other in the length direction. The third precast template 13 and the fourth precast template 14 are in a U shape; this group of reinforcing plates 40 includes a first reinforcing plate 41 and a second reinforcing plate 42 arranged opposite to each other in the width direction, and a third reinforcing plate 43 and a fourth reinforcing plate 44 arranged opposite to each other in the length direction. The third reinforcing plate 43 and the fourth reinforcing plate 44 are in a U shape.

[0076] During assembly, the first reinforcement plate 41 and the second reinforcement plate 42 are placed on one side of the first prefabricated template 11 and the second prefabricated template 12 respectively, and a connecting piece 31 is used to pass through the through holes respectively set in the first reinforcement plate 41, the first prefabricated template 11, the second prefabricated template 12 and the second reinforcement plate 42, so that a space is reserved between the first prefabricated template 11 and the second prefabricated template 12, and the first reinforcement plate 41 is fitted with the first prefabricated template 11, and the second reinforcement plate 42 is fitted with the second prefabricated template 12. The two sleeves 33 are respectively sleeved on the first connecting piece 311 and are respectively located on the side of the first reinforcement plate 41 and the second reinforcement plate 42 away from the corresponding prefabricated template 10. The limiting buckles 32 are respectively connected to one side of the first prefabricated template 11 and one side of one of the sleeves 33, and one of the sleeves 33, the first prefabricated template 11 and the first reinforcement plate 41 are clamped; similarly, the other sleeve 33, the second prefabricated template 12 and the second reinforcement plate 42 are also clamped by the limiting buckle 32.

[0077] Place the third prefabricated template 13 into the U-shaped space of the third reinforcing plate 43 so that the third prefabricated template 13 fits with the third reinforcing plate 43, and place the fourth prefabricated template 14 into the U-shaped space of the fourth reinforcing plate 44 so that the fourth prefabricated template 14 fits with the fourth reinforcing plate 44; refer to the connection method of the first reinforcing plate 41, the first prefabricated template 11, the second prefabricated template 12 and the second reinforcing plate 42, and clamp the third prefabricated template 13, the third reinforcing plate 43 and the corresponding socket 33, and clamp the fourth prefabricated template 14, the fourth reinforcing plate 44 and the corresponding socket 33 through the connecting piece 31, the socket 33 and the limiting buckle 32 respectively.

[0078] The sleeves 33 corresponding to the set of prefabricated templates 10 and the set of reinforcing plates 40 are connected respectively by using screw rods 34 and nuts 35 .

[0079] Similarly, the middle and bottom prefabricated formworks 10 and reinforcing plates 40 in the height direction refer to the above-mentioned connection process.

[0080] Then, the corresponding sleeves 33 of the prefabricated formwork 10 and the reinforcing plate 40 at the top, middle and bottom in the height direction are connected using screw rods 34 and nuts 35 to form the entire concrete forming device.

[0081] Concrete is poured into the pouring cavity 20. After the concrete is formed, the fastening assembly 30 and the reinforcing plate 40 are removed, and the portion of the connecting member 31 that exceeds the precast formwork 10 is cut off and polished, and finally a building structure formed by the precast formwork 10 and concrete is formed.

[0082] The above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application.

Claims

1. A concrete forming device, characterized in that: include: A plurality of prefabricated templates, wherein the prefabricated templates are made of plain concrete, and the plurality of prefabricated templates are arranged to form a casting cavity having a casting port, and a bonding portion is provided on a surface of at least one of the prefabricated templates facing the casting cavity; The casting cavity is used to accommodate concrete. When the concrete is bonded to the surface of the precast formwork facing the casting cavity, an embedded fit is formed between the concrete and the bonding fitting portion, so that the cast concrete and the precast formwork form a building structure.

2. The concrete forming device according to claim 1, characterized in that: The bonding matching portion is a protrusion, and when the poured concrete is bonded to the surface of the prefabricated template facing the pouring cavity, the protrusion is embedded in the concrete; Alternatively, the bonding portion is a groove, and when the poured concrete is bonded to the surface of the prefabricated template facing the casting cavity, the concrete is embedded in the groove; Alternatively, the bonding portion is a concave-convex structure, and when the poured concrete is bonded to the surface of the prefabricated template facing the pouring cavity, the concrete and the concave-convex structure are embedded and matched with each other.

3. The concrete forming device according to claim 1, characterized in that: The bonding matching portion is formed by roughening, grooving or chiseling the surface of the prefabricated template facing the casting cavity.

4. The concrete forming device according to claim 1, characterized in that: The concrete forming device further comprises a fastening assembly, a plurality of the prefabricated templates are assembled to form a casting cavity, and the plurality of the prefabricated templates are fixed by the fastening assembly.

5. The concrete forming device according to claim 4, characterized in that: The fastening assembly includes a connecting piece and a limiting buckle, the prefabricated template includes a first prefabricated template and a second prefabricated template arranged relatively to each other, the connecting piece passes through the through holes respectively arranged in the first prefabricated template and the second prefabricated template, the limiting buckle is sleeved on and locked on the connecting piece, the limiting buckles are arranged on both sides of the first prefabricated template and both sides of the second prefabricated template, and the first prefabricated template and the second prefabricated template are respectively limited by the limiting buckles.

6. The concrete forming device according to claim 4, characterized in that: The prefabricated template includes a first prefabricated template and a third prefabricated template that are arranged adjacently, and the fastening assembly includes a connecting piece, a sleeve, a screw and a nut; The connecting member includes a first connecting member and a second connecting member, the first connecting member passes through a through hole provided in the first prefabricated template, and the second connecting member passes through a through hole provided in the third prefabricated template, and the sleeve member includes a first sleeve member and a second sleeve member, the first sleeve member is sleeved on the first connecting member, and the second sleeve member is sleeved on the second connecting member; The screw includes a first screw and a second screw, one end of the first screw is threadedly connected to the first socket, the other end of the first screw is threadedly connected to one end of the nut, one end of the second screw is threadedly connected to the second socket, and the other end of the second screw is threadedly connected to the other end of the nut.

7. The concrete forming device according to claim 6, characterized in that: The sleeve connector comprises a body, a mounting portion and a connecting portion, wherein the body is sleeved on the connecting portion, the mounting portion is fixedly connected to a side of the body away from the connecting portion, and the mounting portion is provided with a mounting hole; The first end of the connecting portion is located in the mounting hole, the second end of the connecting portion extends out of the mounting hole, and the second end of the connecting portion is provided with a threaded hole for connecting with the screw rod; There is a gap between the first end of the connecting portion and the mounting hole, and the mounting hole has a limiting portion, and the limiting portion is used to limit the first end of the connecting portion from being separated from the mounting hole.

8. The concrete forming device according to claim 5 or 6, characterized in that: The connecting piece is light-transmissive and is made of epoxy resin.

9. The concrete forming device according to claim 4, characterized in that: The forming device also includes a plurality of reinforcing plates, which are spliced ​​together and attached to a side of the prefabricated templates facing away from the casting cavity. The reinforcing plates and the prefabricated templates are fixed by the fastening assembly.

10. The concrete forming device according to claim 9, characterized in that: The joint seams between the adjacently arranged reinforcing plates and the joint seams between the adjacently arranged prefabricated templates are staggered.

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