A window formwork support aluminum mold
Patent Information
- Application Number
- CN202522209151.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-19
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-19
AI Technical Summary
During the concrete pouring process, stress concentration at the corners of existing window casting aluminum formwork leads to uncontrolled cracks, affecting aesthetics and subsequent decorative surface construction.
Guide strips are installed on the support frame to guide the concrete to crack at specific locations, forming controllable guide joints. This, combined with a modular design, facilitates disassembly and transportation.
It enables controllability of concrete cracks, improves aesthetics, simplifies the construction process of subsequent decorative surfaces, and enhances ease of use.
Smart Images

Figure CN224931361U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction, and in particular to an aluminum formwork for window casting support. Background Technology
[0002] The function of aluminum formwork for window pouring support is to support and shape the concrete during the pouring of concrete in the window area of a building. It is widely used in building projects that adopt standardized designs, such as high-rise residential buildings, apartments, and hotels.
[0003] The aluminum formwork for window casting in related technologies typically includes a rectangular support frame. The support frame is connected to the wall, and a casting gap is reserved between the support frame and the wall. Concrete is then poured into the casting gap, and the concrete is smoothed at the inner edge of the support frame. After the concrete has cured, the support frame is removed, thus enabling the casting of the building window.
[0004] Due to the shrinkage characteristics of concrete and stress concentration caused by temperature differences, stress concentration occurs at the 45° angle of the window under cooling conditions. A significant stress difference exists between the window corner and its four sides, representing a sudden stress change, which is the main cause of concrete cracking. This is especially true for aluminum formwork support systems, which are prone to developing diagonal cracks in the wall surface at the bottom corner of the window. Furthermore, the location of these cracks is uncontrollable, making subsequent wall decoration work difficult and affecting aesthetics; therefore, improvements are needed. Utility Model Content
[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an aluminum formwork for window casting support. After the window casting operation is completed, two guide joints can be formed on the wall surface at the bottom corner of the window to guide the concrete to crack at specific locations, thereby making the cracks controllable, facilitating the subsequent wall decoration surface construction, and improving the aesthetics.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a window casting support aluminum formwork, including a rectangular support frame, wherein two guide strips are vertically arranged at the lower end of the support frame facing the wall, and the two guide strips correspond to the corresponding corner positions of the bottom side of the window, so that after the window completes the concrete casting operation, the wall surface layer at the bottom corner of the window forms two guide seams under the action of the two guide strips.
[0007] Optionally, the support frame includes two horizontal support plates and two vertical support plates, with the two vertical support plates located between the two horizontal support plates, and the two ends of the two vertical support plates being detachably connected to the corresponding horizontal support plates.
[0008] Optionally: a first flange is fixedly connected to one side of each of the two horizontal support plates that are close to each other, and a second flange is fixedly connected to both ends of each of the vertical support plates, and each second flange is connected to the corresponding first flange by a fastening bolt.
[0009] Optionally: each of the vertical support plates is provided with a positioning post at both ends, and the two horizontal support plates are provided with positioning grooves at their ends on the side closest to each other, and each positioning post can be tightly inserted into the corresponding positioning groove.
[0010] Optionally, each of the vertical support plates has a sealing strip fixedly connected to both ends, and the sealing strip can tightly abut against the corresponding horizontal support plate.
[0011] Optionally, each of the horizontal and vertical support plates has a grid-like reinforcing rib on its surface.
[0012] Optionally, each of the horizontal support plates and the vertical support plates is fixedly connected with a lifting ring.
[0013] In summary, this utility model has the following beneficial effects: 1. By setting two guide strips on the support frame, after the window pouring is completed, two guide joints can be formed on the wall surface at the bottom corner of the window to guide the concrete to crack within the guide joints, making the cracks controllable, facilitating the subsequent wall decoration surface construction, and improving the aesthetics. 2. By setting up modular support aluminum formwork, it is convenient for workers to carry out production, transportation and other operations of support aluminum formwork, thereby improving the ease of use. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the embodiment; Figure 2 This is a structural schematic diagram of an embodiment; Figure 3 This is a cross-sectional view of an embodiment.
[0015] Reference numerals: 1. Support frame; 11. Horizontal support plate; 12. Vertical support plate; 13. First flange; 14. Second flange; 15. Fastening bolt; 2. Guide strip; 3. Positioning post; 4. Positioning groove; 5. Sealing strip; 6. Reinforcing rib; 7. Lifting ring. Detailed Implementation
[0016] The present invention will be further described in detail below with reference to the accompanying drawings.
[0017] Reference Figure 1 , Figure 2A window casting support aluminum formwork includes a rectangular support frame 1. Two guide strips 2 are vertically fixedly connected to the lower end of the support frame 1 facing the wall, and the two guide strips 2 correspond to the corresponding corner positions on the bottom side of the window.
[0018] After the concrete pouring for the window is completed and the supporting aluminum formwork is removed, two guide joints are formed on the wall surface at the bottom corner of the window under the action of the two guide strips 2. This can also be understood as the two guide strips 2 pressing out two grooves on the wall surface. This design allows the concrete stress to be released towards the two guide joints, guiding the concrete to crack within the guide joints, thus controlling the cracking. Subsequent grouting of the guide joints can then be used for surface repair, facilitating later wall decoration work and improving aesthetics.
[0019] Reference Figure 1 , Figure 2 The support frame 1 includes two horizontal support plates 11 and two vertical support plates 12. The two vertical support plates 12 are located between the two horizontal support plates 11, and both ends of the two vertical support plates 12 are detachably connected to the corresponding horizontal support plates 11. Meanwhile, two guide strips 2 are integrally formed and installed on the lower horizontal support plate 11. By setting up modular support aluminum formwork, it is convenient for workers to carry out production, handling, and other operations of the support aluminum formwork, thereby improving ease of use.
[0020] Reference Figure 1 , Figure 3 Two horizontal support plates 11 are respectively fixedly connected to a first flange 13 on the side close to each other, and two vertical support plates 12 are respectively fixedly connected to a second flange 14 at both ends. Each second flange 14 is connected to the corresponding first flange 13 by a fastening bolt 15, so as to realize the quick assembly and disassembly of the two horizontal support plates 11 and the two vertical support plates 12.
[0021] Reference Figure 1 , Figure 3 Each vertical support plate 12 has a positioning post 3 at both ends, and the two horizontal support plates 11 have positioning grooves 4 at their ends on the side closest to each other. Each positioning post 3 can be tightly inserted into the corresponding positioning groove 4, which can not only realize the positioning of the vertical support plate 12 and the horizontal support plate 11 during installation, but also improve the structural strength of the connection between the vertical support plate 12 and the horizontal support plate 11.
[0022] Reference Figure 1 , Figure 3 Each vertical support plate 12 has a sealing strip 5 fixedly connected to both ends, and the sealing strip 5 can tightly abut against the corresponding horizontal support plate 11, thereby improving the sealing effect between the vertical support plate 12 and the horizontal support plate 11 and reducing the risk of concrete mortar leakage.
[0023] Reference Figure 1Each horizontal support plate 11 and vertical support plate 12 has an integrally formed mesh-like reinforcing rib 6 on its surface to improve structural strength. At the same time, each horizontal support plate 11 and vertical support plate 12 is fixedly connected with a lifting ring 7 to facilitate the hoisting and transportation of the supporting aluminum formwork by the workers.
[0024] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.
Claims
1. A window casting support aluminum formwork, comprising a rectangular support frame (1), characterized in that: The support frame (1) has two guide strips (2) vertically installed at the lower end of the side facing the wall. The two guide strips (2) correspond to the corresponding corners of the bottom side of the window, so that after the concrete pouring operation is completed, the wall surface layer at the bottom corner of the window forms two guide seams under the action of the two guide strips (2).
2. The aluminum formwork for window casting support according to claim 1, characterized in that: The support frame (1) includes two horizontal support plates (11) and two vertical support plates (12). The two vertical support plates (12) are located between the two horizontal support plates (11), and the two ends of the two vertical support plates (12) are detachably connected to the corresponding horizontal support plates (11).
3. The aluminum formwork for window casting support according to claim 2, characterized in that: Two horizontal support plates (11) are respectively fixedly connected to a first flange (13) on their sides that are close to each other, and each vertical support plate (12) is respectively fixedly connected to a second flange (14) at both ends, and each second flange (14) is connected to the corresponding first flange (13) by a fastening bolt (15).
4. The aluminum formwork for window casting support according to claim 2, characterized in that: Each of the vertical support plates (12) is provided with a positioning post (3) at both ends, and the two horizontal support plates (11) are provided with positioning grooves (4) at the two ends of the side closest to each other, and each positioning post (3) can be tightly inserted into the corresponding positioning groove (4).
5. The aluminum formwork for window casting support according to claim 2, characterized in that: Each of the vertical support plates (12) is fixedly connected to a sealing strip (5) at both ends, and the sealing strip (5) can tightly abut against the corresponding horizontal support plate (11).
6. The aluminum formwork for window casting support according to claim 2, characterized in that: Each of the horizontal support plate (11) and the vertical support plate (12) is provided with a grid-like reinforcing rib (6) on its surface.
7. The aluminum formwork for window casting support according to claim 2, characterized in that: Each of the horizontal support plate (11) and the vertical support plate (12) is fixedly connected with a lifting ring (7).
