A concrete precast component

Abstract

The utility model relates to a kind of concrete prefabricated components, relate to building construction technology field, to solve the problem of the corner of existing PC concrete prefabricated component is vulnerable and construction accessory is complicated.This prefabricated component includes concrete wallboard ontology, and four corner portions are embedded with metal corner guard, and recessed multifunctional installation box is embedded on panel surface;Metal corner guard is connected with concrete ontology by anchoring steel bar;The inner chamber of recessed multifunctional installation box is in the ladder-shaped dovetail groove structure of inner width outer narrow.This concrete prefabricated component is covered with metal corner guard by four corners, effectively solves the corner collapse problem that easily occurs in the transport hoisting of prefabricated wallboard at low cost;At the same time, using the recessed box of dovetail groove structure, the quick stable connection of hoisting hook and inclined support rod is realized, and it does not affect the stacking transport of component, significantly improves construction efficiency and component quality.

Description

Technical Field

[0001] This utility model relates to the field of precast concrete components, specifically to a precast concrete wall panel component with integrated corner protectors and a multi-functional mounting base. Background Technology

[0002] With the development of prefabricated buildings, precast concrete components (PC components) are being used more and more widely. However, existing PC precast concrete components have the following two obvious problems in current technology: (1) Easily damaged during construction and transportation: Although concrete is resistant to pressure, its edges and corners are very fragile. During the demolding process in the factory, the transfer in the storage yard, the truck transportation, and the on-site lifting, the edges and corners are often bumped and knocked, which causes the concrete to crack and chip, seriously affecting the appearance and quality.

[0003] (2) The construction process is complicated: Traditional PC component connections often use pre-reserved steel sleeves for grouting, which requires high technical skills from workers and makes it difficult to detect the grouting quality, resulting in slow construction speed.

[0004] Therefore, there is a need for a precast concrete wall panel component that can effectively protect the edges and corners from damage, and simplify on-site hoisting and support connection operations. Utility Model Content

[0005] The technical problem to be solved by this utility model is to address the issues of easily damaged corners and complicated construction accessories in existing precast PC concrete components, and to provide a precast concrete wall panel component with built-in corner protectors and a multi-functional mounting base.

[0006] To solve the above-mentioned technical problems, this precast concrete component includes a concrete wall panel body. Metal corner protectors are embedded at the four corners of the concrete wall panel body. The outer surface of the metal corner protectors is flush with the side, top, and bottom surfaces of the concrete wall panel body. Several anchoring steel bars are fixedly connected to the inner surface of the metal corner protectors, extending and being cast into the interior of the concrete wall panel body. At least one recessed multi-functional mounting box is embedded on each of the two side panels of the concrete wall panel body. The opening of the recessed multi-functional mounting box is flush with the surface of the concrete wall panel body, and the inner cavity of the recessed multi-functional mounting box has a trapezoidal dovetail groove structure that is wider inside and narrower outside.

[0007] Furthermore, the metal corner protector is an L-shaped angle steel or a corner-wrapping structure welded from three steel plates, and the outer surface of the metal corner protector is provided with positioning holes and / or welding connection areas for temporary fixing.

[0008] Furthermore, the bottom of the recessed multi-functional mounting box is fixed with reinforcing ribs, which extend into the internal steel mesh of the concrete wall panel body.

[0009] Furthermore, the inner wall of the trapezoidal dovetail groove structure is provided with anti-slip serrations.

[0010] This utility model discloses a precast concrete component that overcomes the shortcomings of existing PC concrete precast components, such as easily damaged corners and complicated construction accessories. By covering the four corners with metal corner protectors, it effectively solves the problem of corner cracking that easily occurs during transportation and hoisting of precast wall panels at low cost. At the same time, by utilizing the concave box with a dovetail groove structure, it achieves a quick and stable connection between the hoisting hook and the inclined support rod without affecting the stacking and transportation of components, significantly improving construction efficiency and component quality. Attached Figure Description

[0011] The following description, in conjunction with the accompanying drawings, further illustrates a precast concrete component according to this utility model: Figure 1 This is a schematic diagram of the planar structure of this precast concrete component; Figure 2 This is a three-dimensional structural diagram of the precast concrete component; Figure 3 yes Figure 1 AA-direction cross section; Figure 4 yes Figure 2 Exploded structure diagram; Figure 5 yes Figure 4 A magnified view of part B in the middle; Figure 6 yes Figure 4 A magnified view of part C in the middle.

[0012] In the picture: 1-Concrete wall panel body; 11-Reinforcing steel mesh; 2-Metal corner protector; 21-Anchoring steel bar; 22-Positioning hole; 23-Welded connection area; 3- Recessed multi-functional mounting box; 31- Trapezoidal dovetail groove structure; 32- Reinforcing rib; 33- Anti-slip toothed texture. Detailed Implementation

[0013] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0014] In the description of this utility model, it should be understood that the terms "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] The present invention will be further described below with specific embodiments, but the scope of protection of the present invention is not limited to the following embodiments.

[0016] Implementation method 1: such as Figures 1 to 4 As shown, this precast concrete component includes a concrete wall panel body 1. For the parts of the precast wall panel most prone to impact damage, this embodiment embeds metal corner protectors 2 at the four corners of the concrete wall panel body 1. The outer surface of the metal corner protectors 2 is flush with the side, top, and bottom surfaces of the concrete wall panel body 1. This design provides protection without affecting the overall dimensional accuracy of the wall panel. Several anchoring steel bars 21 are welded and fixed to the inner surface of the metal corner protectors 2. These anchoring steel bars 21 extend and are anchored inside the concrete, ensuring a tight bond between the metal corner protectors and the concrete, preventing detachment. This design solves most of the corner chipping problems during transportation and hoisting with a relatively small amount of metal material.

[0017] Implementation method 2: such as Figure 2 , 4 As shown, the metal corner protector 2 of this precast concrete component is made of L-shaped angle steel, or welded from three steel plates into a right-angle corner. For ease of on-site construction, positioning holes 22 for temporary fixing are provided on the outer surface of the metal corner protector 2. After the wall panel is erected, construction workers can quickly install temporary guardrails by passing a pin through the hole. In addition, a welding connection area 23 (i.e., the exposed steel plate surface with raised strips) is reserved on the corner protector surface. When splicing two wall panels, welding can be directly performed in this area to achieve a dry, rigid connection between the wall panels. The remaining structures and components are as described in Embodiment 1 and will not be repeated.

[0018] Implementation method 3: such as Figure 1 , 2As shown in Figures 4 to 6, recessed multi-functional mounting boxes 3 are pre-embedded on both sides (usually the upper area) of the concrete wall panel body 1 of this precast concrete component. The opening of the mounting box 3 is flush with the panel surface and does not protrude from the panel surface, facilitating stacking and transportation. The inner cavity of the mounting box 3 is a trapezoidal dovetail groove structure 31 with a wider inner side and a narrower outer side. To prevent the support rod from sliding, anti-slip teeth 33 are integrally formed on the inner side wall of the trapezoidal dovetail groove structure 31, thereby solving the problem of inconvenient hoisting and support connection. The remaining structures and components are as described in Embodiment 1 and will not be described again.

[0019] Implementation method 4: such as Figure 3 , 6 As shown: The bottom of the mounting box 3 of this precast concrete component is welded and fixed with reinforcing ribs 32. The reinforcing ribs 32 extend inward and are tied or welded to the steel mesh frame 11 inside the concrete wall panel body 1, distributing the lifting force across the entire wall panel frame to accommodate the huge pulling force during lifting and prevent the recessed multi-functional mounting box 3 from being pulled out of the concrete. The remaining structures and components are as described in Embodiment 1 and will not be described again.

[0020] When using: (1) Transportation: Since the metal corner protectors 2 protect the fragile corners and the recessed multi-functional installation box 3 does not protrude from the surface, the prefabricated wall panels can be tightly stacked and laid flat on the flatbed truck without worrying about bumps or interference from embedded parts, thus improving transportation efficiency.

[0021] (2) Lifting: No complicated special lifting tools are required. Construction personnel can directly use ordinary lifting hooks and insert them into the opening of the concave multi-functional installation box 3. Since the inner cavity is a dovetail groove that is wider inside and narrower outside, after the hook is inserted, the hook tip will naturally hook onto the wider inner cavity wall. During the lifting process, the hook is pulled upward by the force and is locked by the narrow opening of the trapezoidal dovetail groove structure 31, realizing safe and fast hook lifting.

[0022] (3) Support: After the wall panel is hoisted into place, diagonal support rods need to be installed to adjust the verticality. The end of the diagonal support rod is directly inserted into the box. Using the principle of being wider inside and narrower outside, the support rod head is stuck and cannot be pulled out. In addition, the anti-slip teeth 33 increase the friction and ensure stable support.

[0023] (4) Connection: After the wall panel is in place, the construction personnel directly use the metal corner protector 2 at the corner as the welding point to weld and fix the adjacent wall panels. There is no need for formwork and grouting, and the construction site is clean and efficient.

[0024] This precast concrete component effectively solves the problem of corner cracking that easily occurs during the transportation and hoisting of precast wall panels by covering the four corners with metal corner protectors at a low cost. Simultaneously, the use of a dovetail groove structure with recessed boxes enables a quick and stable connection between the hoisting hooks and the diagonal support rods, without affecting the stacking and transportation of components, significantly improving construction efficiency and component quality. Specifically, (1) Low cost and high efficiency protection: Metal corner protectors are used to protect the four corners of the concrete wall panel that are most vulnerable to damage. Compared with the full edge protection solution, the cost and weight are greatly reduced, while effectively preventing corner breakage during transportation and hoisting, and reducing the amount of repair work later.

[0025] (2) Multifunctional integrated interface: The innovative concave multifunctional mounting box adopts a dovetail groove structure, which has the feature of multiple uses in one hole. It can be used with wedge-shaped lifting tools for self-locking hoisting, and can also be used with the end of the inclined support rod for anti-slip support.

[0026] (3) Easy to stack and transport: The installation box adopts a concave design and does not protrude from the surface of the wall panel, so that the prefabricated wall panels can be tightly stacked on the transport vehicle without worrying about damaging the embedded parts, thus improving the transportation efficiency.

[0027] The above description illustrates the main features, basic principles, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments or examples described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments or examples should be considered exemplary and not restrictive. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precast concrete component, comprising a concrete wall panel body (1), characterized in that: Metal corner protectors (2) are pre-embedded at the four corners of the concrete wall panel body (1). The outer surface of the metal corner protectors (2) is flush with the side surface, top surface, and bottom surface of the concrete wall panel body (1). Several anchoring steel bars (21) are fixedly connected to the inner surface of the metal corner protectors (2). The anchoring steel bars (21) extend and are cast into the interior of the concrete wall panel body (1). At least one recessed multi-functional installation box (3) is pre-embedded on both sides of the concrete wall panel body (1). The opening of the recessed multi-functional installation box (3) is flush with the surface of the concrete wall panel body (1). The inner cavity of the recessed multi-functional installation box (3) is a trapezoidal dovetail groove structure (31) with a wider inner cavity and a narrower outer cavity.

2. The precast concrete component according to claim 1, characterized in that: The metal corner protector (2) is an L-shaped angle steel or a corner-covering structure welded from three steel plates. The outer surface of the metal corner protector (2) is provided with positioning holes (22) for temporary fixing and / or welding connection areas (23).

3. The precast concrete component according to claim 1, characterized in that: The bottom of the recessed multi-functional mounting box (3) is fixed with a reinforcing rib (32), which extends into the internal steel mesh (11) of the concrete wall panel body (1).

4. The precast concrete component according to claim 1, characterized in that: The inner wall of the trapezoidal dovetail groove structure (31) is provided with anti-slip serrations (33).

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