Waterproof structure of prefabricated outer wall
By designing a waterproof structure of inverted "V" inclined surface and water collection frame at the prefabricated exterior wall joints, the problem of water leakage at the prefabricated exterior wall joints is solved, and the water flow is effectively guided and collected, avoiding the accumulation of water flow at the joints, and achieving a low-cost waterproof effect.
Patent Information
- Application Number
- CN202422722780.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-11-08
AI Technical Summary
The prefabricated exterior wall joints are prone to water leakage, resulting in rainwater penetration. The prior art is difficult to effectively prevent water flow from accumulating at the floor slabs and walls or at the floor slabs and floor slabs.
A waterproof structure is designed, including an inverted "V" inclined surface and a water collection frame, which guides water flow to the inside of the water collection frame through the inclined surface to prevent the water flow from piled up at the joints, and uses cement casting or corner frames to connect the waterproof structure with the prefabricated exterior wall roof panel.
It realizes a simple and low-cost waterproofing effect, avoids the accumulation of water flow at the joints between the floor slabs and the walls or floor slabs, and solves the waterproofing problem of the docking position of the prefabricated walls.
Smart Images

Figure CN223281544U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of prefabricated wall waterproofing, in particular to a waterproof structure of a prefabricated exterior wall. Background Art
[0002] Prefabricated exterior walls are prefabricated in a factory and then transported to the construction site for installation. They can be entire exterior wall panels or individual structural units. The production process includes rebar tying, formwork installation, and concrete pouring, ensuring quality and precision through industrialized production methods.
[0003] Leakage at the joints of prefabricated exterior walls is a common and critical issue. This leakage can be caused by shrinkage and deformation of the materials: During the production process, materials such as concrete shrink. When different prefabricated panels are installed together, the varying degrees of shrinkage can create gaps at the joints. For example, if the shrinkage of prefabricated concrete exterior wall panels exceeds design expectations after curing, tiny cracks can form at the joints, creating pathways for rainwater to penetrate.
[0004] In order to prevent rainwater from gathering at the joints of prefabricated exterior walls and from seeping into the cracks, a waterproof structure for prefabricated exterior walls is proposed. Utility Model Content
[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.
[0006] To this end, the purpose of the utility model is to propose a waterproof structure for prefabricated exterior walls, which has a simple structure and low cost. It can guide the water flow to the inside of the water collection frame, avoid the accumulation of water at the joints between the floor slabs and the walls, or between the floor slabs, and solve the waterproofing problem at the joint position of the prefabricated wall.
[0007] In order to achieve the above-mentioned purpose, the utility model proposes that the waterproof structure may include a prefabricated exterior wall roof slab joint waterproof structure and a side waterproof structure;
[0008] The top surface of the waterproof structure at the joint of the prefabricated exterior wall roof plate is a first inclined surface connected on two sides, and the shape of the two connected first inclined surfaces is an inverted "V" shape. The ends of the two first inclined surfaces are connected to water collection frames. First vertical blocks are provided below the two first inclined surfaces, and the first vertical blocks are connected to the prefabricated exterior wall roof plate;
[0009] The top surface of the side waterproofing structure is a second slope connected on both sides, and the shape of the second slope connected on both sides is an inverted "V" shape. The slope length of the inner second slope is shorter than the slope length of the outer second slope. A second vertical block is arranged below the two second slopes, and the second vertical block is connected to the prefabricated exterior wall roof slab. An angled block is arranged below the inner second slope, and a water collecting frame is connected to the inclined end of the angled block.
[0010] The waterproof structure of the prefabricated exterior wall of the utility model has a simple structure and low cost. It guides the water flow to the inside of the water collection frame to avoid water accumulation at the joints between the floor slab and the wall, or between the floor slabs, and solves the waterproof problem at the joint position of the prefabricated wall.
[0011] In addition, the waterproof structure of the prefabricated exterior wall proposed in the application may also have the following additional technical features:
[0012] Specifically, the end of the prefabricated exterior wall is a slope, and the roof plate of the prefabricated exterior wall is provided with an end installation groove connected to the slope. The waterproof structure also includes an end waterproof structure, and the end waterproof structure includes a plane and a third inclined plane. The thickness of the plane is the same as the depth of the end installation groove. There are mounting frames fixed on both sides of the top surface of the plane, and hooks are provided at the ends of the mounting frames.
[0013] Specifically, the first vertical block and the second vertical block are connected to the prefabricated exterior wall roof slab by pouring cement.
[0014] Specifically, the first vertical block and the second vertical block are connected to the prefabricated exterior wall roof slab via corner brackets.
[0015] Specifically, a plurality of grooves matching the water collecting frames are provided on the top of the prefabricated exterior wall roof slab.
[0016] Specifically, the water collecting trough of the water collecting frame has a slope.
[0017] Additional aspects and advantages of the present invention will be partially given in the following description, and partially become apparent from the following description, or be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The above-mentioned and / or additional advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0019] Figure 1 This is a schematic diagram of a waterproof structure of a prefabricated exterior wall according to an embodiment of the present invention;
[0020] Figure 2 This is a schematic diagram of the waterproof structure at the joint of the prefabricated exterior wall roof slab in the waterproof structure of the prefabricated exterior wall according to one embodiment of the present invention;
[0021] Figure 3 This is a schematic diagram of the side waterproof structure of the waterproof structure of the prefabricated exterior wall according to one embodiment of the present invention;
[0022] Figure 4 This is a schematic diagram of the waterproof structure at the middle end of the waterproof structure of a prefabricated exterior wall according to an embodiment of the present invention.
[0023] As shown in the figure: 1. Waterproof structure at the joints of prefabricated exterior wall roof slabs; 2. Side waterproof structure; 3. First vertical block; 4. Second vertical block; 5. Bevel block; 6. Water collecting frame; 7. First slope; 8. Second slope; 9. End mounting groove; 10. Flat surface; 11. Erection frame; 12. End waterproof structure; 13. Third slope; 14. Hook mouth. DETAILED DESCRIPTION
[0024] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.
[0025] The waterproof structure of the prefabricated exterior wall according to the embodiment of the present invention will be described below with reference to the accompanying drawings.
[0026] Figure 1 It is a structural schematic diagram of a waterproof structure of a prefabricated exterior wall according to an embodiment of the utility model.
[0027] like Figure 1 As shown, the waterproof structure of the prefabricated exterior wall in an embodiment of the present invention may include a waterproof structure 1 at the joint of the prefabricated exterior wall roof plate and a side waterproof structure 2.
[0028] The top surface of the waterproof structure 1 at the joint of the prefabricated exterior wall roof slab is a first inclined surface 7 connected on both sides. The shape of the two connected first inclined surfaces 7 is an inverted "V" shape. The ends of the two first inclined surfaces 7 are connected to a water collecting frame 6. A first vertical block 3 is arranged below the two first inclined surfaces 7. The first vertical block 3 is connected to the prefabricated exterior wall roof slab. The waterproof structure 1 at the joint of the prefabricated exterior wall roof slab is used for waterproofing the joint of the prefabricated exterior wall roof slab. Water from the joint of the roof slab penetrates to the lower floor. Generally, water accumulates at the joint and water penetrates at the joint. A prefabricated exterior wall joint waterproof structure is arranged above the joint to make the water flow converge at the first inclined surface 7 to the inside of the water collecting frame 6 and then flow out from the water collecting frame 6.
[0029] The top surface of the side waterproof structure 2 is a second slope 8 connected on both sides, and the shape of the second slope 8 connected on both sides is an inverted "V" shape. The slope length of the inner second slope 8 is shorter than the slope length of the outer second slope 8. A second vertical block 4 is arranged below the two second slopes 8, and the second vertical block 4 is connected to the prefabricated exterior wall roof slab. An angled block 5 is arranged below the inner second slope 8, and a water collecting frame 6 is connected to the inclined end of the angled block 5. The side waterproof structure 2 is arranged at the joint between the wall and the floor slab, and the water flow is also diverted to the outside of the wall and the inside of the water collecting frame 6 through the inverted "V" shaped slope structure, so that the water flow will not accumulate at the joint position.
[0030] As a possible scenario, the first vertical block 3 and the second vertical block 4 are connected to the prefabricated exterior wall roof slab by cement pouring, and the waterproof structure 1 and the side waterproof structure 2 at the joint of the prefabricated exterior wall roof slab can be connected to the roof slab of the prefabricated exterior wall by cement pouring, so that the joint of the floor slab is waterproof, or the joint between the wall and the floor slab is waterproof.
[0031] As a possible situation, the first vertical block 3 and the second vertical block 4 are connected to the prefabricated exterior wall roof slab through corner brackets, and the waterproof structure 1 and the side waterproof structure 2 at the joint of the prefabricated exterior wall roof slab can be connected to the roof slab of the prefabricated exterior wall by fixing the corner brackets, so that the joint of the floor slab is waterproof, or the joint between the wall and the floor slab is waterproof.
[0032] In one embodiment of the present invention, Figure 1-4 As shown, the above-mentioned waterproof structure for prefabricated exterior walls has a slope at the end of the prefabricated exterior wall, and the roof plate of the prefabricated exterior wall is provided with an end mounting groove 9 connected to the slope. The waterproof structure also includes an end waterproof structure 12, and the end waterproof structure 12 includes a plane 10 and a third inclined surface 13. The thickness of the plane 10 is the same as the depth of the end mounting groove 9. A mounting frame 11 is fixed on both sides of the top surface of the plane 10, and a hook mouth 14 is provided at the end of the mounting frame 11. The end waterproof structure 12 allows water to flow out along the slope, and the end waterproof structure 12 is mounted on the adjacent water collecting frame 6 through the mounting frame 11.
[0033] In one embodiment of the present invention, Figure 1 As shown, a plurality of grooves adapted to the water collecting frames 6 are provided on the top of the prefabricated exterior wall roof slab, and the grooves can be used for placing the water collecting frames 6 .
[0034] In one embodiment of the present invention, the water collecting trough of the water collecting frame 6 has a slope, and the collected water can flow out from the slope.
[0035] Specifically, in the actual implementation process, a prefabricated exterior wall joint waterproof structure is set above the joint, so that the water flow converges to the inside of the water collecting frame 6 on the first slope 7, and flows out of the water collecting frame 6 to avoid the roof slab joint. A side waterproof structure 2 is set at the joint between the wall and the floor slab to divert the water flow to the outside of the wall and the inside of the water collecting frame 6. The end waterproof structure 12 allows the water to flow out along the slope, and the end waterproof structure 12 is erected on the adjacent water collecting frame 6 through the erection frame 11.
[0036] In summary, the waterproof structure of the prefabricated exterior wall of the embodiment of the utility model has a simple structure and low cost. It guides the water flow to the inside of the water collection frame 6, avoids the accumulation of water flow at the joints between the floor and the wall, or between the floor and the floor, and solves the waterproofing problem at the joint position of the prefabricated wall.
[0037] In this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.
[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.
[0039] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.
Claims
1. A waterproof structure for a prefabricated exterior wall, characterized in that: The waterproof structure comprises a prefabricated exterior wall roof slab joint waterproof structure (1) and a side waterproof structure (2); The top surface of the waterproof structure (1) at the joint of the prefabricated exterior wall roof plate is a first inclined surface (7) connected on two sides, and the first inclined surfaces (7) on both sides are in an inverted "V" shape; The ends of the two first inclined surfaces (7) are both connected to a water collecting frame (6); A first vertical block (3) is provided below the two first inclined surfaces (7), and the first vertical block (3) is connected to the prefabricated exterior wall roof slab; The top surface of the side waterproof structure (2) is a second inclined surface (8) connected on two sides, and the second inclined surfaces (8) on both sides are in an inverted "V" shape; The inclined surface length of the second inclined surface (8) on the inner side is shorter than the inclined surface length of the second inclined surface (8) on the outer side; Second vertical blocks (4) are provided below the two second inclined surfaces (8), and the second vertical blocks (4) are connected to the prefabricated exterior wall roof slabs; An angled block (5) is provided below the second inner inclined surface (8), and a water collecting frame (6) is connected to the inclined surface end of the angled block (5); The top surface of the bevel block (5) is a bevel, and the side edges of the bevel block (5) fit in with the side edges of the second vertical block (4).
2. The waterproof structure of the prefabricated exterior wall according to claim 1, characterized in that: The end of the prefabricated exterior wall is a slope, and the roof plate of the prefabricated exterior wall is provided with an end mounting groove (9) connected to the slope. The waterproof structure also includes an end waterproof structure (12), and the end waterproof structure (12) includes a plane (10) and a third inclined surface (13). The thickness of the plane (10) is the same as the depth of the end mounting groove (9). Both sides of the top surface of the plane (10) are fixed with a mounting frame (11), and the end of the mounting frame (11) is provided with a hook mouth (14).
3. The waterproof structure of the prefabricated exterior wall according to claim 1, characterized in that: The first vertical block (3) and the second vertical block (4) are connected to the prefabricated exterior wall roof slab by cement pouring.
4. The waterproof structure of the prefabricated exterior wall according to claim 1, characterized in that: The first vertical block (3) and the second vertical block (4) are connected to the prefabricated exterior wall roof slab via corner brackets.
5. The waterproof structure of the prefabricated exterior wall according to claim 1, characterized in that: The top of the prefabricated exterior wall roof plate is provided with a plurality of grooves adapted to the water collecting frame (6).
6. The waterproof structure of the prefabricated exterior wall according to claim 1, characterized in that: The water collecting trough of the water collecting frame (6) has a slope.