Outer wall window construction node structure
By introducing a buffer layer and drainage system into the structural nodes of the exterior wall windows, the problem of cracking of the exterior wall panels in areas with temperature differences and typhoons was solved, and the waterproofing and stability of the structure were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA MCC17 GRP CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional wall and window construction joints are prone to cracks in the mortar layer on the exterior wall panel in areas with large temperature differences or frequent typhoons, leading to rainwater seepage and corrosion of the structure, and lack of effective drainage measures.
The design incorporates a buffer layer and drainage system, including buffer components, corrugated stainless steel strips, and water collection troughs. The exterior wall panels are connected to the reinforced concrete floor slabs via positioning columns, and combined with mortar layers and drainage channels, it forms a structure that actively absorbs stress and drains water quickly.
It effectively reduces the direct force on the exterior wall panels, lowers the risk of mortar layer cracking, and prevents rainwater retention through a rapid drainage system, thereby improving waterproof performance and structural stability.
Smart Images

Figure CN224200085U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building construction technology, specifically a structural node for exterior wall windows. Background Technology
[0002] In traditional wall and window construction joints, exterior wall panels are typically directly adhered to the surface of reinforced concrete floor slabs with mortar, and then covered with mortar for waterproofing. However, in areas with large temperature differences or frequent typhoons, the effects of thermal expansion and contraction, as well as wind force, on the exterior wall panels can cause cracks in the mortar layer, allowing rainwater to seep in. At the same time, the lack of drainage measures between the exterior wall panels and the reinforced concrete floor slabs causes rainwater to stagnate, accelerating corrosion and ultimately leading to the detachment of the exterior wall panels.
[0003] A search revealed that a utility model with publication number CN111734007B proposes a self-waterproofing structure for exterior walls, which effectively prevents rainwater from seeping into the wall. However, if applied to areas with large temperature differences or frequent typhoons, the aforementioned problems will still exist. Summary of the Invention
[0004] In order to solve the problems mentioned in the background art, this utility model proposes an external wall window construction node structure to solve the above problems.
[0005] An exterior wall window construction node structure includes an exterior wall panel, an exterior window, and a reinforced concrete floor slab. Positioning columns are installed on the surface of the reinforced concrete floor slab facing the exterior wall panel, and a buffer layer is installed between the reinforced concrete floor slab and the exterior wall panel.
[0006] Furthermore, the number and location of the positioning posts need to be selected based on the specific construction environment. The positioning posts can be pre-installed as prefabricated components, or they can be installed by drilling and using other connection methods such as chemical bolts.
[0007] Furthermore, the buffer layer includes multiple sets of buffer components, which are fixedly installed on the surface of the exterior wall panel near the reinforced concrete floor slab and connected to the surface of the reinforced concrete floor slab through positioning columns. It also includes a mortar layer that covers the surface of the reinforced concrete floor slab and wraps the exterior wall panel and the buffer layer.
[0008] Furthermore, the buffer includes a mounting base, which includes a first plate-shaped portion and a second plate-shaped portion. The side surface of the first plate-shaped portion is provided with a mounting groove, and the mounting groove is fitted with connecting parts such as bolts. Taking bolts as an example, during installation, the required number of buffers is first calculated to determine the position of the hole on the surface of the outer wall panel. After the hole is made, bolts are used to pass through the mounting groove to fix the mounting base to the surface of the outer wall panel.
[0009] Furthermore, a corrugated stainless steel strip mounting groove is provided at the bottom of the second plate-shaped portion, and a second positioning groove is provided on the side surface of the second plate-shaped portion. The second positioning groove penetrates the second plate-shaped portion and is connected to the corrugated stainless steel strip mounting groove. A connecting groove is provided on the upper surface of the second plate-shaped portion. The connecting groove penetrates the second plate-shaped portion and is connected to the corrugated stainless steel strip mounting groove.
[0010] Furthermore, the corrugated stainless steel strip mounting groove is fitted with a corrugated stainless steel strip fastener. The surface of the corrugated stainless steel strip fastener is provided with a first positioning groove. The corrugated stainless steel strip fastener extends into the corrugated stainless steel strip mounting groove until the first positioning groove is aligned with the second positioning groove.
[0011] Furthermore, corrugated stainless steel strips can be used alone.
[0012] Furthermore, the flexibility of the corrugated stainless steel strip can effectively absorb the lateral stress caused by thermal expansion and contraction or wind, reducing the direct force on the exterior wall panel, thereby reducing the risk of cracking of the mortar layer. At the same time, the corrugated stainless steel strip itself also serves as a secondary waterproof barrier, further improving the waterproofing capability of the exterior wall.
[0013] Furthermore, the mounting slots and positioning slots of the mounting base allow for flexible adjustment of the position of the buffer during construction, adapting to different sizes of exterior wall panels, improving installation accuracy and structural stability. The connecting slots allow some mortar to pass through, connecting the buffer, reinforced concrete wall panel, and exterior wall panel into a whole, improving overall stability.
[0014] Then, the outer wall panel is moved so that the positioning column extends into the first positioning groove and the second positioning groove, connecting the outer wall panel and the reinforced concrete floor slab, and filling with mortar to form a mortar layer.
[0015] Furthermore, at least one corrugated stainless steel strip is connected to the lateral surface of the corrugated stainless steel strip fastener. The number of corrugated stainless steel strips installed needs to be determined according to the specific construction conditions. The spacing between adjacent corrugated stainless steel strips needs to be selected according to the specific construction requirements. At the same time, the connection method between the corrugated stainless steel strip and the corrugated stainless steel strip fastener is not unique, including but not limited to fixed connection and detachable connection. A corrugated stainless steel strip fastener is connected to each end of the corrugated stainless steel strip, and through holes are evenly opened on the surface of the corrugated stainless steel strip.
[0016] Furthermore, a stepped slope is provided at the connection between the top of the mortar layer and the bottom of the exterior window, and an eave is provided on the side of the bottom of the mortar layer away from the exterior wall panel.
[0017] Furthermore, the stepped slope design reduces rainwater accumulation at the window frame, and the eaves form a water-guiding structure to further prevent rainwater from seeping into the joints.
[0018] Furthermore, a water collection trough is provided at the bottom of the buffer layer, and a drainage channel is provided at the bottom of the water collection trough. The drainage channel is arranged at an angle, and a drip groove is opened at the bottom of the mortar layer, which is connected to the drainage channel.
[0019] Furthermore, rainwater that seeps into the buffer layer is collected by the water collection trough and then quickly discharged through the inclined drainage channel, avoiding water accumulation and reducing the risk of corrosion to structural materials.
[0020] Furthermore, the drip grooves guide rainwater to drip along a specific path, preventing rainwater from flowing back along the exterior wall panels and further improving waterproofing performance.
[0021] Furthermore, it also includes a square steel sub-frame, through which the exterior window is connected to the reinforced concrete floor slab, and a tongue and groove joint is installed at the joint of the square steel sub-frame near the mortar layer.
[0022] Furthermore, the square steel subframe provides stable fixing points for the window frame, reducing window frame displacement caused by wind or vibration. The tongue and groove joint mortar forms a labyrinth structure at the connection, extending the path of rainwater penetration and forming a dual physical and chemical waterproof barrier, significantly improving the sealing performance of the joint.
[0023] Furthermore, steel beams are installed inside the reinforced concrete floor slabs, and autoclaved aerated concrete blocks are installed inside the steel beams.
[0024] Furthermore, autoclaved aerated concrete blocks reduce the structural weight while providing excellent thermal insulation, while steel beams enhance the overall load-bearing capacity. Fire-retardant coatings and fiberglass mesh improve the fire resistance of the steel beams and prevent structural deformation at high temperatures.
[0025] Compared with the prior art, the exterior wall window construction node structure proposed in this utility model actively absorbs stress by setting a buffer layer, reducing the direct force on the exterior wall panel, thereby reducing the risk of cracking of the mortar layer. At the same time, a water collection trough is set at the bottom of the buffer layer, and the inclined drainage channel is connected to the drip groove at the bottom of the mortar layer to form a drainage system. Rainwater that seeps into the buffer layer is collected by the water collection trough and quickly discharged through the inclined drainage channel, avoiding water accumulation and reducing the risk of corrosion to structural materials. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 A structural schematic diagram of a window construction node structure in an exterior wall;
[0028] Figure 2 for Figure 1 Enlarged view of section A in the middle;
[0029] Figure 3 for Figure 1 Enlarged view of section B;
[0030] Figure 4 This is a schematic diagram of the buffer structure;
[0031] Figure 5 A schematic diagram of the connection structure between the corrugated stainless steel strip fastener and the corrugated stainless steel strip;
[0032] Figure 6 This is a schematic diagram of the mounting base structure;
[0033] Figure 7 This is a schematic diagram of the mounting base structure from another perspective.
[0034] in:
[0035] 1. Exterior wall panels;
[0036] 2. Exterior windows;
[0037] 3. Reinforced concrete floor slabs;
[0038] 4. Steel beams;
[0039] 5. Autoclaved aerated concrete blocks;
[0040] 6. Mortar layer;
[0041] 7. Foaming agent;
[0042] 8. Sealant;
[0043] 9. Fire-retardant coatings;
[0044] 10. Fiberglass mesh fabric;
[0045] 11. Tongue and groove;
[0046] 12. Stepped slope;
[0047] 13. Buffer components;
[0048] 14. Corrugated stainless steel strip;
[0049] 15. Positioning post;
[0050] 16. Water collection tank;
[0051] 17. Eaves;
[0052] 18. Drainage channels;
[0053] 19. Drip groove;
[0054] 20. Mounting base;
[0055] 21. Corrugated stainless steel strip fastener; 2101. First positioning groove;
[0056] 22. Through hole;
[0057] 2301. The first plate-shaped part; 2302. The second plate-shaped part;
[0058] 24. Mounting slot;
[0059] 25. Corrugated stainless steel strip mounting groove;
[0060] 26. Second positioning slot;
[0061] 27. Connecting slot. Detailed Implementation
[0062] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.
[0063] The application principle of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0064] Example 1
[0065] like Figure 1 , Figure 4-7 As shown, an exterior wall window construction node structure includes an exterior wall panel 1, an exterior window 2, and a reinforced concrete floor slab 3. A positioning column 15 is installed on the surface of the reinforced concrete floor slab 3 facing the exterior wall panel 1, and a buffer layer is installed between the reinforced concrete floor slab 3 and the exterior wall panel 1.
[0066] The buffer layer includes multiple sets of buffer components 13, which are fixedly installed on the surface of the exterior wall panel 1 near the reinforced concrete floor slab 3 and connected to the surface of the reinforced concrete floor slab 3 by positioning columns 15. It also includes a mortar layer 6, which covers the surface of the reinforced concrete floor slab 3 and wraps the exterior wall panel 1 and the buffer layer.
[0067] The buffer component 13 includes a mounting base 20, which includes a first plate-shaped portion 2301 and a second plate-shaped portion 2302. The side surface of the first plate-shaped portion 2301 is provided with a mounting groove 24, which is fitted with bolts and other connecting parts. Taking bolts as an example, during installation, the required number of buffer components 13 is first calculated to determine the position of the hole on the surface of the outer wall panel 1. After the hole is made, bolts are used to pass through the mounting groove 24 to fix the mounting base 20 to the surface of the outer wall panel 1.
[0068] The second plate-shaped portion 2302 has a corrugated stainless steel strip mounting groove 25 at its bottom and a second positioning groove 26 on its side surface. The second positioning groove 26 penetrates the second plate-shaped portion 2302 and communicates with the corrugated stainless steel strip mounting groove 25. The second plate-shaped portion 2302 has a connecting groove 27 on its upper surface. The connecting groove 27 penetrates the second plate-shaped portion 2302 and communicates with the corrugated stainless steel strip mounting groove 25.
[0069] The corrugated stainless steel strip mounting groove 25 is fitted with a corrugated stainless steel strip fastener 21. The surface of the corrugated stainless steel strip fastener 21 is provided with a first positioning groove 2101. The corrugated stainless steel strip fastener 21 extends into the corrugated stainless steel strip mounting groove 25 until the first positioning groove 2101 is aligned with the second positioning groove 26.
[0070] Then move the outer wall panel 1 so that the positioning column 15 extends into the first positioning groove 2101 and the second positioning groove 2101, connecting the outer wall panel 1 and the reinforced concrete floor slab 3, and fill it with mortar to form a mortar layer.
[0071] At least one corrugated stainless steel strip 14 is connected to the lateral surface of the corrugated stainless steel strip fastener 21. The number of corrugated stainless steel strips 14 installed needs to be determined according to the specific construction conditions. The spacing between adjacent corrugated stainless steel strips 14 needs to be selected according to the specific construction requirements. At the same time, the connection method between the corrugated stainless steel strip 14 and the corrugated stainless steel strip fastener 21 is not unique, including but not limited to fixed connection and detachable connection. A corrugated stainless steel strip fastener 21 is connected to each end of the corrugated stainless steel strip 14. Through holes 22 are evenly opened on the surface of the corrugated stainless steel strip 14.
[0072] Example 2
[0073] like Figure 2-3 As shown, based on Embodiment 1, an exterior wall window construction node structure is provided, wherein a stepped slope is provided at the connection between the top of the mortar layer 6 and the bottom of the exterior window 2, and an eave 17 is provided on the side of the bottom of the mortar layer 6 away from the exterior wall panel 1.
[0074] The bottom of the buffer layer is provided with a water collection trough 16, and the bottom of the water collection trough 16 is provided with a drainage channel 18. The drainage channel 18 is arranged at an angle. The bottom of the mortar layer 6 is provided with a drip groove 24, which is connected to the drainage channel 18.
[0075] It also includes a square steel sub-frame. The outer window 2 is connected to the reinforced concrete floor slab 3 through the square steel sub-frame. The square steel sub-frame is equipped with a tongue and groove joint 11 near the mortar layer 6. The square steel sub-frame is connected to the reinforced concrete floor slab 3 through a foaming agent 7, and the connection is sealed with sealant 8.
[0076] The reinforced concrete floor slab 3 has a steel beam 4 installed inside, and the steel beam 4 has an autoclaved aerated concrete block 5 installed inside. The side of the steel beam 4 closest to the interior is covered with a mortar layer 6, and is sprayed with fireproof coating 9 and laid with fiberglass mesh 10.
[0077] Example 3
[0078] like Figure 1-7 As shown, an exterior wall window construction node structure includes an exterior wall panel 1, an exterior window 2, and a reinforced concrete floor slab 3. A positioning column 15 is installed on the surface of the reinforced concrete floor slab 3 facing the exterior wall panel 1, and a buffer layer is installed between the reinforced concrete floor slab 3 and the exterior wall panel 1.
[0079] The buffer layer includes multiple sets of buffer components 13, which are fixedly installed on the surface of the exterior wall panel 1 near the reinforced concrete floor slab 3 and connected to the surface of the reinforced concrete floor slab 3 by positioning columns 15. It also includes a mortar layer 6, which covers the surface of the reinforced concrete floor slab 3 and wraps the exterior wall panel 1 and the buffer layer.
[0080] The buffer component 13 includes a mounting base 20, which includes a first plate-shaped portion 2301 and a second plate-shaped portion 2302. The side surface of the first plate-shaped portion 2301 is provided with a mounting groove 24, which is fitted with bolts and other connecting parts. Taking bolts as an example, during installation, the required number of buffer components 13 is first calculated to determine the position of the hole on the surface of the outer wall panel 1. After the hole is made, bolts are used to pass through the mounting groove 24 to fix the mounting base 20 to the surface of the outer wall panel 1.
[0081] The second plate-shaped portion 2302 has a corrugated stainless steel strip mounting groove 25 at its bottom and a second positioning groove 26 on its side surface. The second positioning groove 26 penetrates the second plate-shaped portion 2302 and communicates with the corrugated stainless steel strip mounting groove 25. The second plate-shaped portion 2302 has a connecting groove 27 on its upper surface. The connecting groove 27 penetrates the second plate-shaped portion 2302 and communicates with the corrugated stainless steel strip mounting groove 25.
[0082] The corrugated stainless steel strip mounting groove 25 is fitted with a corrugated stainless steel strip fastener 21. The surface of the corrugated stainless steel strip fastener 21 is provided with a first positioning groove 2101. The corrugated stainless steel strip fastener 21 extends into the corrugated stainless steel strip mounting groove 25 until the first positioning groove 2101 is aligned with the second positioning groove 26.
[0083] Then move the outer wall panel 1 so that the positioning column 15 extends into the first positioning groove 2101 and the second positioning groove 2101, connecting the outer wall panel 1 and the reinforced concrete floor slab 3, and fill it with mortar to form a mortar layer.
[0084] At least one corrugated stainless steel strip 14 is connected to the lateral surface of the corrugated stainless steel strip fastener 21. The number of corrugated stainless steel strips 14 installed needs to be determined according to the specific construction conditions. The spacing between adjacent corrugated stainless steel strips 14 needs to be selected according to the specific construction requirements. At the same time, the connection method between the corrugated stainless steel strip 14 and the corrugated stainless steel strip fastener 21 is not unique, including but not limited to fixed connection and detachable connection. A corrugated stainless steel strip fastener 21 is connected to each end of the corrugated stainless steel strip 14. Through holes 22 are evenly opened on the surface of the corrugated stainless steel strip 14.
[0085] A stepped slope is provided at the connection between the top of the mortar layer 6 and the bottom of the outer window 2, and an eave 17 is provided on the side of the bottom of the mortar layer 6 away from the outer wall panel 1.
[0086] A water collection trough 16 is provided at the bottom of the buffer layer, and a drainage channel 18 is provided at the bottom of the water collection trough 16. The drainage channel 18 is arranged at an inclination. A drip groove 24 is provided at the bottom of the mortar layer 6. The drip groove 24 is connected to the drainage channel 18. When rainwater seeps into the buffer layer, the rainwater is collected through the water collection trough 16 and discharged through the drainage pipe 18. When discharged, it drips out along the drip groove 24.
[0087] It also includes a square steel sub-frame, the outer window 2 is connected to the reinforced concrete floor slab 3 through the square steel sub-frame, and the square steel sub-frame is equipped with a tongue and groove joint 11 near the connection of the mortar layer 6.
[0088] The reinforced concrete floor slab 3 has a steel beam 4 installed inside, and the steel beam 4 has an autoclaved aerated concrete block 5 installed inside.
[0089] 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 exemplary 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.
[0090] 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 structural node for an exterior wall window, comprising an exterior wall panel (1), an exterior window (2), and a reinforced concrete floor slab (3), characterized in that: A positioning column (15) is installed on the surface of the reinforced concrete floor slab (3) facing the outer wall panel (1). A buffer layer is installed between the reinforced concrete floor slab (3) and the outer wall panel (1). The buffer layer includes multiple sets of buffer components (13). The buffer components (13) are fixedly installed on the surface of the outer wall panel (1) close to the reinforced concrete floor slab (3) and connected to the surface of the reinforced concrete floor slab (3) through the positioning column (15). The buffer layer also includes a mortar layer (6). The mortar layer (6) covers the surface of the reinforced concrete floor slab (3) and wraps the outer wall panel (1) and the buffer layer.
2. The exterior wall window construction node structure according to claim 1, characterized in that: The buffer (13) includes a mounting base (20), which includes a first plate-shaped portion (2301) and a second plate-shaped portion (2302). The first plate-shaped portion (2301) has a mounting groove (24) on its side surface. The second plate-shaped portion (2302) has a corrugated stainless steel strip mounting groove (25) at its bottom. The second plate-shaped portion (2302) has a second positioning groove (26) on its side surface. The second positioning groove (26) penetrates the second plate-shaped portion (2302) and communicates with the corrugated stainless steel strip mounting groove (25). The second plate-shaped portion (2302) has a connecting groove (27) on its upper surface. The connecting groove (27) penetrates the second plate-shaped portion (2302) and communicates with the corrugated stainless steel strip mounting groove (25).
3. The exterior wall window construction node structure according to claim 2, characterized in that: The corrugated stainless steel strip mounting groove (25) is fitted with a corrugated stainless steel strip fastener (21). The surface of the corrugated stainless steel strip fastener (21) is provided with a first positioning groove (2101). The corrugated stainless steel strip fastener (21) extends into the corrugated stainless steel strip mounting groove (25) until the first positioning groove (2101) is aligned with the second positioning groove (26).
4. The exterior wall window construction node structure according to claim 3, characterized in that: The corrugated stainless steel strip fastener (21) has at least one corrugated stainless steel strip (14) connected to its lateral surface. The corrugated stainless steel strip (14) is connected to a corrugated stainless steel strip fastener (21) at each end. The corrugated stainless steel strip (14) has through holes (22) evenly distributed on its surface.
5. The exterior wall window construction node structure according to claim 1, characterized in that: A stepped slope is provided at the connection between the top of the mortar layer (6) and the bottom of the outer window (2), and an eave (17) is provided on the side of the bottom of the mortar layer (6) away from the outer wall panel (1).
6. The exterior wall window construction node structure according to claim 1, characterized in that: The bottom of the buffer layer is provided with a water collection trough (16), the bottom of the water collection trough (16) is provided with a drainage channel (18), the drainage channel (18) is arranged at an inclination, and the bottom of the mortar layer (6) is provided with a drip groove (19), the drip groove (19) is connected to the drainage channel (18).
7. The exterior wall window construction node structure according to claim 1, characterized in that: It also includes a square steel sub-frame, the outer window (2) is connected to the reinforced concrete floor slab (3) through the square steel sub-frame, and the square steel sub-frame is fitted with a tongue and groove joint (11) near the mortar layer (6).
8. The exterior wall window construction node structure according to claim 1, characterized in that: The reinforced concrete floor slab (3) is equipped with steel beams (4), and the steel beams (4) are equipped with autoclaved aerated concrete blocks (5).
Citation Information
Patent Citations
External wall self-waterproof structure
CN111734007B