An ultra-thin double-sided composite wall
By introducing steel plates and interlocking blocks into the double-sided composite wall, the problem of concrete slabs cracking during transportation was solved, enabling rapid replacement of damaged slabs and improving structural strength, while reducing resource waste and costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JINCONNE NEW MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-02
AI Technical Summary
Existing double-sided composite walls are prone to cracking due to impacts on the concrete slabs during transportation and hoisting, leading to the abandonment of the entire device, resulting in resource waste and increased costs.
The design employs steel plates and interlocking blocks, allowing damaged concrete slabs to be replaced individually, and the external forces are shared by the first and second protective plates, increasing structural strength to prevent slippage.
It enables rapid replacement of damaged concrete slabs, reduces resource waste, lowers operating costs, and improves the structural stability and environmental friendliness of the device.
Smart Images

Figure CN224314463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of composite wall technology, and in particular to an ultra-thin double-sided composite wall. Background Technology
[0002] Ultra-thin double-sided composite walls are a new type of building wall with concrete slabs on both sides and steel trusses in the middle. Due to their advantages such as high construction efficiency, they are widely used in the field of prefabricated buildings. With their unique structural and performance advantages, they meet the needs of modern buildings in terms of space utilization, energy saving, and environmental protection.
[0003] Currently, existing double-sided composite walls are monolithic structures. During actual transportation and hoisting of the composite walls, due to the large overall area of the concrete slabs on both sides of the composite wall, the concrete slabs are prone to cracking due to impact. Even if the other concrete slab is intact, the workers can only discard the entire composite wall, which wastes resources and increases the company's operating costs. To address these issues, we propose an ultra-thin double-sided composite wall. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an ultra-thin double-sided composite wall.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An ultra-thin double-sided composite wall includes two sets of concrete slabs, with steel plates distributed on the adjacent sides of the two sets of concrete slabs. Truss reinforcement bars are fixedly welded to the adjacent sides of the steel plates. A protrusion is fixedly connected to the inner side of the concrete slab. A receiving groove adapted to the protrusion is opened inside the steel plate. A cover plate is provided at the end of the steel plate, and an insertion block is fixedly connected to the inner side of the cover plate. The insertion block extends through the inner wall of the steel plate into the protrusion, and a mating groove adapted to the insertion block is opened inside the protrusion. The side of the cover plate is connected to the protrusion by a first bolt.
[0007] Preferably, there are two sets of protrusions and mating grooves, and the two sets of protrusions and mating grooves are symmetrically distributed about the central axis of the steel plate.
[0008] Preferably, the cover plate is configured with an L-shaped structure, and a groove is provided at the center of the cover plate.
[0009] Preferably, protective plates are fixedly connected to both ends of the cover plate, and the inner wall of the protective plate is in contact with the outer wall of the steel plate.
[0010] Preferably, two sets of first protective plates are symmetrically arranged on the inner sides of the two sets of steel plates, and second protective plates are symmetrically distributed at the upper and lower ends of the two sets of first protective plates.
[0011] Preferably, the second protective plate has a reserved groove inside, and a second bolt is inserted into the reserved groove, and the end of the first protective plate has a screw hole that matches the second bolt.
[0012] Preferably, there are four sets of the second bolts and the reserved grooves, and the four sets of the second bolts and the reserved grooves are located at the corners of the second protective plate.
[0013] Preferably, a plug-in plate is fixedly connected to the inner side of the second protective plate, and the first protective plate has an insertion slot adapted to the plug-in plate inside.
[0014] Preferably, the two sets of first protective plates and second protective plates together form a U-shaped structure, and the sides of both sets of first protective plates and second protective plates are glued with rubber plates.
[0015] Preferably, the protrusion is configured as a strip structure, and the outer wall of the protrusion and the inner wall of the mating groove are tightly fitted together.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1. This device, equipped with steel plates and plug-in blocks, allows workers to easily replace damaged concrete slabs during use by working together, eliminating the need to discard the entire device and thus effectively improving its environmental friendliness.
[0018] 2. By setting up a first protective plate and a second protective plate, the device can improve the structural strength of the device during transportation and limit the relative displacement of the two sets of concrete slabs, so as to effectively prevent the concrete slabs from shifting due to uneven stress and causing the wall to deform. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of an ultra-thin double-sided composite wall proposed in this utility model;
[0020] Figure 2 for Figure 1 A three-dimensional schematic diagram of the installation status of the first and second protective plates in the middle;
[0021] Figure 3 for Figure 1 A three-dimensional cross-sectional view of the plug-in plate and plug slot structure in the diagram;
[0022] Figure 4for Figure 1 A three-dimensional cross-sectional view of the concrete slab and steel plate structure in the diagram;
[0023] Figure 5 for Figure 1 A three-dimensional cross-sectional view of the cover plate and the first bolt structure.
[0024] In the diagram: 1. Concrete slab; 2. Steel plate; 3. Truss reinforcement; 4. Protrusion; 5. Cover plate; 6. Insertion block; 7. First bolt; 8. Butt joint groove; 9. First protective plate; 10. Second protective plate; 11. Insertion plate; 12. Insertion groove; 13. Second bolt; 14. Protective plate. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0026] Reference Figure 1-5 An ultra-thin double-sided composite wall includes a concrete slab 1, of which two sets of concrete slabs 1 are provided, and steel plates 2 are distributed on the side of the two sets of concrete slabs 1 that are close to each other. Truss steel bars 3 are fixedly welded to the side of the steel plates 2 that are close to each other. A protrusion 4 is fixedly connected to the inner side of the concrete slab 1. A receiving groove 8 adapted to the protrusion 4 is opened inside the steel plate 2. A cover plate 5 is provided at the end of the steel plate 2, and an insertion block 6 is fixedly connected to the inner side of the cover plate 5. The insertion block 6 extends through the inner wall of the steel plate 2 into the protrusion 4, and a mating groove adapted to the insertion block 6 is opened inside the protrusion 4. The side of the cover plate 5 is connected to the protrusion 4 by a first bolt 7. The tightness of the connection between the concrete slab 1 and the steel plate 2 can be effectively ensured by the insertion block 6 inserted into the protrusion 4 through the inner side of the cover plate 5.
[0027] Furthermore, refer to Figure 1 and Figure 4 It can be seen that there are two sets of protrusions 4 and receiving grooves 8, and the two sets of protrusions 4 and receiving grooves 8 are symmetrically distributed about the central axis of steel plate 2. In use, the reliability of the connection between concrete slab 1 and steel plate 2 can be further guaranteed by the mutual cooperation of the two sets of protrusions 4 and receiving grooves 8.
[0028] Furthermore, refer to Figure 1 It can be seen that the cover plate 5 is designed with an L-shaped structure, and a groove is provided at the center of the cover plate 5. The groove is not shown in the figure. The groove allows the staff to quickly pull the cover plate 5 after the first bolt 7 is pulled out from the inside of the cover plate 5.
[0029] Furthermore, refer to Figure 1 and Figure 5It can be seen that protective plates 14 are fixedly connected to both ends of the cover plate 5, and the inner wall of the protective plate 14 is in contact with the outer wall of the steel plate 2. During use, the protective plates 14 connected to both sides of the cover plate 5 can be used to seal the sides of the cover plate 5, so as to effectively prevent the concrete poured later from entering the interior of the protrusion 4.
[0030] Furthermore, refer to Figure 2 , Figure 3 and Figure 4 It can be seen that two sets of first protective plates 9 are symmetrically arranged on the inner side of the two sets of steel plates 2, and second protective plates 10 are symmetrically distributed at the upper and lower ends of the two sets of first protective plates 9. The arrangement of the first protective plates 9 and the second protective plates 10 can improve the structural strength of the device and limit the relative displacement of the two sets of concrete plates 1, so as to effectively prevent the concrete plates 1 from shifting due to uneven force.
[0031] Furthermore, refer to Figure 3 It can be seen that the second protective plate 10 has a reserved groove inside, and a second bolt 13 is inserted into the reserved groove. The end of the first protective plate 9 has a screw hole that matches the second bolt 13. In use, through the cooperation of the second bolt 13 and the threaded groove, when the device is rotated to the installation position, the first protective plate 9 and the second protective plate 10 can be easily removed from the inside of the concrete slab 1 to ensure the normal use of the concrete slab 1 and to realize the reuse of the first protective plate 9 and the second protective plate 10.
[0032] Furthermore, refer to Figure 2 and Figure 3 It can be seen that there are four sets of second bolts 13 and reserved slots, and the four sets of second bolts 13 and reserved slots are located at the corners of the second protective plate 10. Through the cooperation of the four sets of second bolts 13 and reserved slots, the tightness of the connection between the first protective plate 9 and the second protective plate 10 can be effectively guaranteed.
[0033] Furthermore, refer to Figure 3 It can be seen that the inner side of the second protective plate 10 is fixedly connected to the plug plate 11, and the inside of the first protective plate 9 is provided with an insertion slot 12 that is compatible with the plug plate 11. Through the cooperation of the plug plate 11 and the insertion slot 12, the second protective plate 10 can be pre-positioned during installation so as to carry out subsequent installation operations.
[0034] Furthermore, refer to Figure 2It can be seen that the two sets of first protective plates 9 and second protective plates 10 together form a U-shaped structure. The sides of the two sets of first protective plates 9 and second protective plates 10 are glued with rubber plates. By forming the U-shaped structure of the first protective plates 9 and second protective plates 10, the protection effect of this device can be improved. The rubber plates are not shown in the figure. By setting the rubber plates, the edges of the first protective plates 9 and second protective plates 10 can be buffered and protected.
[0035] Furthermore, refer to Figure 5 It can be seen that the protrusion 4 is set as a strip structure, and the outer wall of the protrusion 4 and the inner wall of the receiving groove 8 are closely fitted. Since the protrusion 4 is set as a strip, its contact area with the receiving groove 8 can be effectively increased, which makes it easier to use the receiving groove 8 and the first bolt 7 for subsequent docking operations.
[0036] Working principle: When using this utility model, the workers can first transport the device to the designated area of the construction site. During the entire transportation process, the first protective plate 9 and the second protective plate 10 distributed between the two sets of concrete slabs 1 can share the external force applied to the concrete slabs 1 during transportation, and disperse the stress originally concentrated in certain parts of the concrete slabs 1 to the first protective plate 9 and the second protective plate 10, thereby reducing the deformation of the concrete slabs 1 themselves. After the transportation of the concrete slabs 1 is completed, the workers can use tools such as electric drills to pull out the second bolts 13 inserted inside the second protective plate 10 from the end of the first protective plate 9. Then the workers can take out the first protective plate 9 and the second protective plate 10 from between the concrete slabs 1, and then the workers can install the device in a suitable area.
[0037] When a single concrete slab 1 is damaged by external force during transportation, the worker can use a tool to pull the first bolt 7 out from the inside of the cover plate 5 and the protrusion 4 to release the restriction on the cover plate 5. Then the worker can pull the cover plate 5, thereby pulling the plug block 6 connected to the inside of the cover plate 5 out from the inside of the protrusion 4. Then, by pulling the concrete slab 1 laterally, the protrusion 4 can be pulled out from the inside of the steel plate 2, so as to realize the quick disassembly and replacement of the damaged concrete slab 1. The above is the entire working principle of this utility model.
[0038] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.
[0039] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
[0040] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
Claims
1. An ultra-thin double-sided composite wall, comprising a concrete slab (1), characterized in that, Two sets of concrete slabs (1) are provided, and steel plates (2) are distributed on the side of the two sets of concrete slabs (1) that are close to each other. Truss steel bars (3) are fixedly welded on the side of the steel plates (2) that are close to each other. A protrusion (4) is fixedly connected to the inner side of the concrete slab (1). A receiving groove (8) adapted to the protrusion (4) is opened in the interior of the steel plate (2). A cover plate (5) is provided at the end of the steel plate (2), and a plug-in block (6) is fixedly connected to the inner side of the cover plate (5). The plug-in block (6) extends through the inner wall of the steel plate (2) into the protrusion (4), and a mating groove adapted to the plug-in block (6) is opened in the interior of the protrusion (4). The side of the cover plate (5) is connected to the protrusion (4) by a first bolt (7).
2. The ultra-thin double-skin facades wall according to claim 1, characterized in that, The protrusions (4) and the receiving grooves (8) are provided in two sets, and the two sets of protrusions (4) and receiving grooves (8) are symmetrically distributed about the central axis of the steel plate (2).
3. The ultra-thin double-sided composite wall according to claim 1, characterized in that, The cover plate (5) is configured as an L-shaped structure, and a groove is provided at the center of the cover plate (5).
4. The ultra-thin double-sided composite wall according to claim 1, characterized in that, The cover plate (5) is fixedly connected to the two ends of the protective plate (14), and the inner wall of the protective plate (14) is in contact with the outer wall of the steel plate (2).
5. The ultra-thin double-sided composite wall according to claim 1, characterized in that, Two sets of first protective plates (9) are symmetrically arranged on the inner side of the two sets of steel plates (2), and second protective plates (10) are symmetrically distributed at the upper and lower ends of the two sets of first protective plates (9).
6. The ultra-thin double-sided composite wall according to claim 5, characterized in that, The second protective plate (10) has a reserved groove inside, and a second bolt (13) is inserted inside the reserved groove. The end of the first protective plate (9) has a screw hole that matches the second bolt (13).
7. The ultra-thin double-sided composite wall according to claim 6, characterized in that, There are four sets of the second bolt (13) and the reserved groove, and the four sets of the second bolt (13) and the reserved groove are located at the corner of the second protective plate (10).
8. The ultra-thin double-sided composite wall according to claim 5, characterized in that, The inner side of the second protective plate (10) is fixedly connected to a plug plate (11), and the inside of the first protective plate (9) is provided with a plug slot (12) that is compatible with the plug plate (11).
9. The ultra-thin double-sided composite wall according to claim 5, characterized in that, The two sets of first protective plates (9) and second protective plates (10) together form a U-shaped structure, and the sides of the two sets of first protective plates (9) and second protective plates (10) are glued with rubber plates.
10. The ultra-thin double-sided composite wall according to claim 1, characterized in that, The protrusion (4) is configured as a strip structure, and the outer wall of the protrusion (4) and the inner wall of the receiving groove (8) are closely fitted.