Fabricated foundation connecting structure and wallboard mounting structure
By using a prefabricated foundation connection structure and employing pre-embedded connecting bolts and U-shaped plates, the problems of difficult transportation, complex construction, and high costs in traditional construction are solved. This achieves green, environmentally friendly, and efficient construction results, reduces material and labor costs, and ensures the firmness of the connection and the convenience of construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional cast-in-place foundation connections suffer from problems such as difficult transportation, difficult construction, large material loss, high labor costs, difficulties in modification and demolition, serious resource waste, and environmental pollution. In addition, cast-in-place foundation connections are not reliable, construction is greatly affected by weather, and the overall cost is high.
The prefabricated basic connection structure utilizes pre-embedded connecting bolts and U-shaped plates, combined with locking nuts and connecting plates, to achieve rapid installation of industrialized standard customized components through a completely dry construction method. This avoids on-site drilling and ensures a firm and convenient connection.
It achieves green and environmentally friendly construction, reduces construction waste, lowers material and labor costs, ensures consistent quality standards, ensures reliable connections, reduces secondary renovation costs, and makes construction simple and efficient.
Smart Images

Figure CN224063491U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building structure technology, and in particular to a prefabricated foundation connection structure and wall panel installation structure. Background Technology
[0002] Traditional cast-in-place foundation connections suffer from problems such as difficult transportation, difficult construction, high material loss, high labor costs, difficulties in modification and demolition, material waste, high overall cost, and heavy weight, which limit the healthy development of cast-in-place foundations.
[0003] Furthermore, connecting walls to a cast-in-place concrete foundation involves drilling holes into the existing foundation. Walls connected by drilling are not securely joined to the foundation and are prone to loosening, detachment, and aging. If drilling is not used, a new foundation can be excavated and poured, but this results in significant resource waste and higher construction costs.
[0004] Traditional prefabricated foundation connections are usually made using on-site grouting. However, on-site grouting has drawbacks such as incomplete grouting, low grouting strength, high susceptibility to on-site construction conditions, and environmental pollution.
[0005] Other cast-in-place foundation connections or prefabricated foundations have high overall costs, and on-site construction is greatly affected by weather, making construction difficult. The main focus is on optimizing the structural process, without considering secondary or multiple uses for building functionality optimization, nor on innovative optimization of production processes. Therefore, no overall cost advantage is realized. Utility Model Content
[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a prefabricated foundation connection structure and wall panel installation structure to solve the problems of low construction efficiency and high cost of the prior art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A prefabricated foundation connection structure and wall panel installation structure includes a foundation, the top surface of which is provided with a post-pouring groove, and connecting bolts are pre-embedded in the post-pouring groove; it also includes a U-shaped plate provided in the post-pouring groove, the bottom plate of the U-shaped plate is attached to the bottom of the post-pouring groove and connected to the connecting bolts, and the two support plates of the U-shaped plate are vertically arranged and extend out of the post-pouring groove.
[0009] In the aforementioned prefabricated foundation connection structure, the connecting bolts are vertically embedded in the foundation, and the upper end of the bolts is provided with external threads and is set higher than the bottom of the post-pouring groove; the base plate is provided with through holes, and the U-shaped plate is sleeved on the connecting bolts through the through holes and fixedly connected to the connecting bolts by locking nuts.
[0010] In the aforementioned prefabricated foundation connection structure, concrete is poured into the post-cast groove.
[0011] In the aforementioned prefabricated foundation connection structure, a pad is provided on each of the opposite sides of the upper side of the base plate, with a gap between the two pads, and when the U-shaped plate is connected to the connecting bolts, the upper end of the pad is flush with the top surface of the foundation.
[0012] In the aforementioned prefabricated foundation connection structure, the support plate is provided with multiple first connection holes.
[0013] In the aforementioned prefabricated foundation connection structure, a connecting plate is installed on the opposite side of the two support plates, and the connecting plate is parallel to the support plate and perpendicular to it.
[0014] In the aforementioned prefabricated foundation connection structure, the connection plate is provided with multiple second connection holes, and the lower side of the connection plate is in contact with the top surface of the foundation.
[0015] Based on the aforementioned prefabricated foundation connection structure, this utility model also provides a prefabricated wall panel installation structure, including a composite wall panel and the aforementioned prefabricated foundation connection structure; the composite wall panel includes a steel frame and a filling structure layer filled within the area enclosed by the steel frame, and panel layers are provided on both sides of the filling structure layer; the composite wall panel extends between the two supports of the U-shaped panel, the bottom steel frame of the composite wall panel is attached to the top surface of the foundation, and one side steel frame is fixedly connected to the two supports.
[0016] In the aforementioned prefabricated wall panel installation structure, the bottom steel frame of the composite wall panel extends between the two connecting plates and is fixedly connected to the two connecting plates.
[0017] In the aforementioned prefabricated wall panel installation structure, the composite wall panels include multiple panels, the steel frames on opposite sides of adjacent composite wall panels are respectively connected to the two sides of the support plate, and a buffer plate is filled between the steel frames on opposite sides of adjacent composite wall panels.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] 1. The prefabricated foundation connection structure of this utility model has the characteristics of being green, environmentally friendly, and detachable. The on-site construction process adopts a completely dry construction method, generating very little construction waste.
[0020] 2. The components used in this utility model's prefabricated foundation connection structure are all industrially standardized and customized (steel plates, bolts, rivets, etc.), allowing more than 95% of the work to be completed in the factory. On-site installation can be quickly achieved with only simple assembly, making construction simple.
[0021] 3. This utility model can ensure uniformity of standards through the control of high-precision molds and refined processes in factories, so that the application effect and quality standards of all products are consistent, thus solving the problem of implementing quality and image standards.
[0022] 4. Compared with traditional construction methods, this invention saves materials and eliminates the need for secondary drilling in the foundation, reducing labor and material costs. Furthermore, the connectors in this invention are replaceable, further reducing the cost of secondary modifications.
[0023] In summary, this utility model has the advantages of being green, energy-saving and environmentally friendly, quick to construct, stable and guaranteed in quality, and low in overall cost. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the main structure of the basic connection structure in this utility model;
[0025] Figure 2 This is a side view of the basic connection structure in this utility model;
[0026] Figure 3 This is a schematic diagram of the wall panel installation structure in this utility model;
[0027] In the diagram: 1-foundation, 2-post-pouring groove, 3-connecting bolt, 4-U-shaped plate, 5-locking nut, 6-pad, 7-first connecting hole, 8-connecting plate, 9-second connecting hole, 10-steel frame, 11-filling structural layer, 12-panel layer, 13-buffer plate. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Example 1: A prefabricated foundation connection structure. In specific implementation: see [link to example]. Figure 1-2 The system includes a precast reinforced concrete foundation 1, with a post-cast groove 2 on the top surface of the foundation 1, and connecting bolts 3 pre-embedded in the post-cast groove 2. The post-cast groove 2 is formed during the pouring of the foundation 1 using a PVC circular pipe as a template, and is circular in shape. It also includes a U-shaped plate 4, the bottom plate of which is connected to the connecting bolts 3, and two vertically arranged support plates extending out of the post-cast groove 2. The two support plates are used to connect the side steel frame 10 of the composite wall panel. The support plates are provided with multiple first connecting holes 7 for bolt connection with the composite wall panel.
[0030] Specifically, the connecting bolt 3 is vertically embedded in the foundation 1, with its upper end higher than the bottom of the post-cast groove 2, and this end is provided with external threads. The base plate has a through hole, through which the U-shaped plate 4 is sleeved onto the connecting bolt 3, and is fixedly connected to the connecting bolt 3 by a lock nut 5. A connecting plate 8 is installed on the opposite sides of the two support plates, and the connecting plate 8 is parallel to and perpendicular to the support plates, used to connect the bottom steel frame 10 of the composite wall panel. The connecting plate 8 is provided with multiple second connecting holes 9, and the lower side of the connecting plate 8 is in contact with the top surface of the foundation 1 for bolt connection with the composite wall panel.
[0031] A pad 6 is provided on each of the opposite sides of the upper side of the base plate. There is a gap between the two pads 6. When the U-shaped plate 4 is connected to the connecting bolt 3, the upper end of the pad 6 is flush with the top surface of the foundation 1.
[0032] Example 2, a prefabricated wall panel installation structure, see [link / reference] Figure 3 Based on the basic connection structure in Embodiment 1, this installation structure includes a composite wall panel and the aforementioned prefabricated basic connection structure. The composite wall panel includes a steel frame 10 and a filling structure layer 11 enclosed within the area of the steel frame 10. Panel layers 12 are provided on both sides of the filling structure layer 11. The composite wall panel extends between the two support plates of the U-shaped plate 4, with its bottom steel frame 10 abutting against the top surface of the foundation 1, and one side of the steel frame 10 fixedly connected to the two support plates. The bottom steel frame 10 of the composite wall panel extends between the two connecting plates 8 and is fixedly connected to them. Multiple composite wall panels are included, with the opposite steel frames 10 of adjacent composite wall panels connected to both sides of the support plates, and a buffer plate 13 filling the space between the opposite steel frames 10 of adjacent composite wall panels.
[0033] Specifically, a PVC circular pipe is installed at the top of the foundation 1 structure to form a cast-in-place trough 2. This facilitates operation and ensures a reliable connection between the upper structure and the foundation 1. Pre-embedded connecting bolts 3 extend into the foundation 1 structure, which are then cast together with the foundation 1 structure using concrete. After casting, the surface is leveled, a U-shaped plate 4 is placed on top, steel washers are added, and locking nuts 5 are tightened to achieve a fixed connection. A reinforcing connection structure (two straight steel plates, i.e., connecting plates 8) is also installed. These connecting plates 8 help connect to the main joists of the ground structure. The connecting plates 8 are steel plates with pre-drilled second connecting holes 9. Both ends of the connecting plates 8 are used to connect to the main joists, and the middle is connected to the support plate of the U-shaped plate 4 via bolts.
[0034] All the connecting structures of this utility model are detachable, and can be replaced in time if the connecting structures are corroded or damaged.
[0035] This connecting structure is pre-installed with the foundation 1 under construction, embedded in the soil, with its top end left open for connecting to other structures constructed later. This avoids the need for secondary connections by drilling into the existing foundation 1 during later construction and reduces the likelihood of weak connections between the connecting wall and foundation 1 during later construction. The overall design of this connecting structure includes the foundation 1 structure, which serves as a stable supporting platform, reducing the need for subsequent excavation and thus saving costs. Connecting bolts 3 are pre-embedded at the top of the foundation 1 structure, extending into it and cast together with the foundation 1 structure via concrete. Pre-casting the connecting bolts 3 and foundation 1 structure together serves as a unified load-bearing connection. The connecting bolts 3 are then connected to the main joists for connecting ground facilities via connecting plates 8 and U-shaped plates 4. The connecting wall constructed later directly connects to the main joists, achieving a rapid connection and avoiding direct drilling into the existing foundation 1. This makes the connection more secure, extends its service life, and facilitates replacement construction. Overall, the structure pre-embeds the installation and connection structure on the original foundation 1 so that when constructing greening and other structures, the connection structure can be directly connected to the pre-embedded connection structure on foundation 1, thereby ensuring the reliability of the connection and facilitating replacement, and saving costs.
[0036] Installation Method: First, pour the concrete foundation 1, and simultaneously embed PVC round pipes and connecting bolts 3 (the PVC round pipes are to facilitate the formation of the post-pouring groove 2, so that the bolts and locking nuts 5 can be connected). After the concrete is poured and leveled, place the pre-fabricated U-shaped plate 4 (with the first connection hole 7 reserved), add a gasket, and tighten it with the locking nuts 5. Then pour concrete to prevent the bolts and locking nuts 5 from rusting. At the same time, place two connecting plates 8 on the U-shaped plate 4 and connect them vertically to the U-shaped plate 4. After the connection is completed, put in the precast composite wall panel. The precast composite wall panel consists of two outermost decorative panels or panel layers 12 and an intermediate filling structural layer 11 or insulation board. The entire structure is inserted between the two connecting plates 8 and between the two support plates. Considering the connection stability between the two wall panels, a buffer plate 13 made of OSB board is placed between the two wall panels to act as a buffer. After installation, apply a protective coating to the connection area to prevent corrosion.
[0037] This utility model pre-embeds connecting bolts 3 on the existing concrete foundation 1, and connects the wall panel with bolts and rivets through "U"-shaped steel and "I"-shaped connecting plate 8; the prefabricated foundation 1 connection structure is firmly connected and easy to construct. The prefabricated foundation 1 connection structure has a circular post-pouring groove 2 connection area made in advance with PVC round pipe, which is also used to pre-embed the bolts into the concrete to facilitate connection with the composite wall panel above.
[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A fabricated foundation connection structure, characterized by: The utility model provides a kind of prefabricated foundation connecting structure, including foundation (1), the top surface of foundation (1) is equipped with post-cast channel (2), post-cast channel (2) is pre-buried with connecting bolt (3);It also includes U-shaped plate (4) in post-cast channel (2), the bottom plate of U-shaped plate (4) is attached to the channel bottom of post-cast channel (2) and is connected with connecting bolt (3), two branch plates of U-shaped plate (4) are vertically arranged and extend post-cast channel (2).
2. The fabricated foundation connection of claim 1, wherein: The connecting bolt (3) is vertically pre-buried in the foundation (1), and the upper end of the bolt (3) is provided with external threads and is higher than the channel bottom of the post-cast channel (2). The bottom plate is provided with a through hole, and the U-shaped plate (4) is sleeved on the connecting bolt (3) through the through hole and is fixedly connected with the connecting bolt (3) through the locking nut (5).
3. The fabricated foundation connection of claim 1, wherein: The post-cast channel (2) is poured with concrete.
4. The fabricated foundation connection of claim 1, wherein: The opposite sides of the upper side of the bottom plate are respectively provided with a pad (6), and the two pads (6) have a spacing, and when the U-shaped plate (4) is connected with the connecting bolt (3), the upper end of the pad (6) is flush with the top surface of the foundation (1).
5. The fabricated foundation connection of claim 1, wherein: A plurality of first connecting holes (7) are provided on the branch plate.
6. The fabricated foundation connection of claim 1, wherein: A connecting plate (8) is installed on the opposite side of the two branch plates, and the connecting plate (8) is parallel to the branch plate and is perpendicularly crossed with the branch plate.
7. The fabricated foundation connection of claim 6, wherein: A plurality of second connecting holes (9) are provided on the connecting plate (8), and the lower side of the connecting plate (8) is attached to the top surface of the foundation (1).
8. A panelized wallboard mounting structure, characterized by: The utility model provides a kind of prefabricated foundation connecting structure, including foundation (1), the top surface of foundation (1) is equipped with post-cast channel (2), post-cast channel (2) is pre-buried with connecting bolt (3);It also includes U-shaped plate (4) in post-cast channel (2), the bottom plate of U-shaped plate (4) is attached to the channel bottom of post-cast channel (2) and is connected with connecting bolt (3), two branch plates of U-shaped plate (4) are vertically arranged and extend post-cast channel (2).
9. The panelized wall mounting structure of claim 8, wherein: The bottom steel frame (10) of the composite wall panel extends between the two connecting plates (8) and is fixedly connected with the two connecting plates (8).
10. The panelized wall mounting structure of claim 8, wherein: The utility model provides a kind of prefabricated foundation connecting structure, including foundation (1), the top surface of foundation (1) is equipped with post-cast channel (2), post-cast channel (2) is pre-buried with connecting bolt (3);It also includes U-shaped plate (4) in post-cast channel (2), the bottom plate of U-shaped plate (4) is attached to the channel bottom of post-cast channel (2) and is connected with connecting bolt (3), two branch plates of U-shaped plate (4) are vertically arranged and extend post-cast channel (2). The bottom steel frame (10) of the composite wall panel extends between the two connecting plates (8) and is fixedly connected with the two connecting plates (8).