A hard foam polyurethane thermal insulation waterproof integrated wall for fabricated steel structure house

Abstract

The utility model discloses a kind of hard foam polyurethane heat preservation waterproof integrated wall for fabricated steel structure house, belong to construction engineering field, the wall includes C type steel beam, wall brick and hard foam polyurethane spraying layer.C type steel beam inner wall is equipped with T type slide rail groove, wall brick is equipped with T type brick and positioning groove.When wall is installed, wall brick is inserted with C type steel beam and adjacent wall brick by T type brick, and by work type brick locking end, the rear side outer surface of C type steel beam and wall brick is equipped with inclined recess and dovetail groove respectively, and the sprayed hard foam polyurethane spraying layer is filled and solidified in recess to form physical lock buckle, and insulation layer and wall base layer are firmly mechanically anchored.The utility model realizes quick assembly by physical interlocking structure, solves the problem that insulation layer is easy to fall off by mechanical anchoring, is stable and reliable in connection, and realizes heat preservation waterproof integration.

Description

Technical Field

[0001] This utility model relates to the field of building engineering, and in particular to an integrated rigid polyurethane foam insulation and waterproofing wall for prefabricated steel structure residential buildings. Background Technology

[0002] With the deepening development of industrialized construction and green building concepts, prefabricated buildings, especially steel-structured residential buildings, are gradually becoming an important development direction in the construction industry due to their short construction cycle, energy conservation and environmental protection, and superior seismic performance. In prefabricated steel-structured residential buildings, the walls, as the enclosure structure, directly affect the overall performance and service life of the building due to their insulation, waterproofing, installation efficiency, and the reliability of their connection with the main structure.

[0003] Existing prefabricated wall systems, while prioritizing rapid installation, often neglect the long-term stability and reliability of the insulation layer. Traditional insulation layers typically use boards or are sprayed on-site and then connected to the wall substrate via adhesives and anchors. However, this connection method, especially under the combined effects of temperature changes, humidity, wind loads, and structural vibrations, can lead to adhesive aging and failure, and anchors loosening. This can result in hollow areas, cracking, delamination, or even large-scale detachment of the insulation layer from the wall substrate. Once the insulation layer detaches, it not only severely impacts the building's insulation performance and increases energy consumption but can also create safety hazards. Furthermore, a weak connection between the insulation layer and the wall structure can affect overall waterproofing, providing a pathway for moisture penetration and causing problems such as dampness and mold. This unreliability in the connection between the insulation layer and the substrate has become a significant bottleneck restricting the performance and durability of prefabricated steel structure residential walls.

[0004] Therefore, this utility model proposes a rigid polyurethane foam insulation and waterproofing integrated wall for prefabricated steel structure residential buildings to overcome the shortcomings of the existing technology. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an integrated rigid polyurethane foam insulation and waterproofing wall for prefabricated steel structure residential buildings, aiming to improve the structural defects of the existing technology, such as unreliable connection between the insulation layer and the wall base, easy detachment, and low wall installation efficiency.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a rigid polyurethane foam insulation and waterproofing integrated wall for prefabricated steel structure residential buildings, comprising C-shaped steel beams; multiple wall bricks; I-shaped bricks; and a rigid polyurethane foam spray coating that is sprayed and cured on the outer rear surface of the C-shaped steel beams and all wall bricks. T-shaped sliding rail grooves extending along the length direction are formed on the inner walls of the C-shaped steel beams. A T-shaped brick is fixedly connected to one outer edge of each wall brick, and a positioning groove is formed on the inner wall of the other side. An inclined groove is formed on the outer rear surface of the C-shaped steel beams. A dovetail groove is formed on the outer rear surface of each wall brick. The C-shaped steel beams and wall bricks are initially connected through the sliding fit of the T-shaped bricks and the T-shaped sliding rail grooves. The wall bricks are spliced ​​together by the insertion and fixing of the T-shaped bricks into the positioning grooves. The wall bricks and C-shaped steel beams are fixed by locking pins using I-shaped bricks. The cured body formed by the rigid polyurethane foam spray coating fills the interior of the inclined grooves and the dovetail grooves to form a physical lock.

[0007] Preferably, there are multiple inclined grooves, and the inner walls of two adjacent inclined grooves are V-shaped and mutually inclined and symmetrical.

[0008] Preferably, the inner wall of the dovetail groove has an inverted hook structure that is smaller on the outside and larger on the inside, and the width of the opening of the dovetail groove is smaller than the width of its bottom.

[0009] Preferably, the T-shaped brick includes a T-shaped head, and the inner wall of the positioning groove has a groove shape that matches the T-shaped head to achieve a tight fit.

[0010] Preferably, the present invention further includes an I-beam and high-strength bolts; the I-beam is fixedly connected to the top interior space of the C-beam by the high-strength bolts.

[0011] Preferably, it also includes gypsum board, which is fixedly connected to the inner front wall of the C-shaped steel beam by the high-strength bolts.

[0012] Preferably, the rigid polyurethane foam spray coating is a continuous, seamless whole that completely covers the rear exterior wall surface of the C-shaped steel beam and all wall bricks.

[0013] Preferably, the T-shaped brick and the wall brick are integrally formed.

[0014] This utility model has the following beneficial effects: 1. This utility model achieves rapid assembly of wall brick modules and wall bricks and C-shaped steel beams by combining T-shaped bricks with positioning grooves and T-shaped sliding rail grooves of I-shaped bricks and C-shaped steel beams. This solves the problems of low installation efficiency and complex connection structure of prefabricated walls in the prior art, and achieves the effect of improving construction efficiency and simplifying installation process.

[0015] 2. This utility model, by setting an inclined groove on the outer surface of the rear side of the C-shaped steel beam and a dovetail groove on the outer surface of the rear side of the wall brick, enables the sprayed rigid polyurethane foam coating to form a large number of physical interlocks with these specially shaped grooves after curing. This solves the problem of the insulation layer easily falling off and delaminating due to the failure of adhesion in the prior art, and achieves the effect of mechanical anchoring and stable and reliable connection between the insulation layer and the wall substrate. Attached Figure Description

[0016] Figure 1 A perspective view of a prefabricated steel structure residential rigid polyurethane foam insulation and waterproofing integrated wall for residential buildings proposed in this utility model; Figure 2 This utility model provides a schematic diagram of a rigid polyurethane foam spray coating for an integrated thermal insulation and waterproofing wall for prefabricated steel structure residential buildings. Figure 3 A schematic diagram of a C-shaped steel beam for a prefabricated steel structure residential building with integrated rigid polyurethane foam insulation and waterproofing. Figure 4 A schematic diagram of a T-shaped brick for a prefabricated steel structure residential building with integrated rigid polyurethane foam insulation and waterproofing. Figure 5 for Figure 4 Enlarged structural diagram at point A in the diagram; Figure 6 This utility model presents a dovetail groove diagram for a rigid polyurethane foam insulation and waterproofing integrated wall for prefabricated steel structure residential buildings.

[0017] Legend: 1. C-shaped steel beams; 2. Rigid polyurethane foam spray coating; 3. I-shaped steel beams; 4. Gypsum board; 5. High-strength bolts; 6. Wall tiles; 7. T-shaped bricks; 8. I-shaped bricks; 9. Inclined grooves; 10. Positioning grooves; 11. Dovetail grooves. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1-6This utility model provides an embodiment of a prefabricated steel structure residential rigid polyurethane foam insulation and waterproofing integrated wall, comprising two C-shaped steel beams 1 and multiple wall bricks 6 disposed between the two C-shaped steel beams 1. The C-shaped steel beams 1 serve as the vertical support frame of the wall, providing structural strength. The wall bricks 6 serve as the filling modules of the wall, constituting the main body of the wall. During wall installation, the two C-shaped steel beams 1 are arranged in parallel, and their rear positions are fixed, serving as the vertical support frame of the wall structure. Each C-shaped steel beam 1 has T-shaped sliding rail grooves extending along its length on its opposite inner wall, and these T-shaped sliding rail grooves are used for sliding engagement with the wall bricks 6. Each wall brick 6 has a T-shaped brick 7 fixedly connected to one outer edge, and a positioning groove 10 is formed on the inner wall of the other side. The T-shaped brick 7 has a T-shaped head, and the inner wall of the positioning groove 10 has a groove shape that matches the T-shaped head, for a tight fit with the T-shaped brick 7. The wall is assembled in the following way: the T-shaped brick 7 of the first wall brick 6 is aligned and slidably fitted into the T-shaped slide rail groove on the inner wall of one of the C-shaped steel beams 1, achieving initial physical locking between the wall brick 6 and the C-shaped steel beam 1. Then, the remaining wall bricks 6 are spliced ​​in sequence, and the T-shaped brick 7 of the next wall brick 6 is inserted and fixed into the positioning groove 10 of the previous wall brick 6, using the T-shaped head of the T-shaped brick 7 and the groove shape on the inner wall of the positioning groove 10 to achieve a tight fit. Multiple wall bricks 6 are spliced ​​in sequence from one side to the other until the last wall brick 6; To ensure the final fixation of the wall, the wall also includes I-beams 8. Half of the I-beam 8 is inserted into the positioning groove 10 of the last wall brick 6, while the other half is inserted into the T-shaped slide rail groove of the opposite C-shaped steel beam 1. The outer surface of the I-beam 8 fits tightly against the inner wall of the C-shaped steel beam 1 and the inner wall of the positioning groove 10, acting as a locking pin to firmly fix the end of the entire row of wall bricks 6 to the C-shaped steel beam 1. During the splicing process, the gaps at the bottom or top between adjacent components are filled with concrete to ensure the overall stability of the splice. This wall structure also includes a rigid polyurethane foam coating 2 sprayed and cured onto the rear outer surfaces of the C-shaped steel beam 1 and all wall bricks 6. The rear outer surface of the C-shaped steel beam 1 has multiple inclined grooves 9, with the inner walls of adjacent grooves 9 forming a V-shape and symmetrically inclined. The rear outer surface of the wall bricks 6 has dovetail grooves 11, the inner walls of which have a hook-like structure with a smaller outer diameter and a larger inner diameter, and the groove opening width is smaller than the groove bottom width. During spraying, the rigid polyurethane foam coating 2 flows fully in liquid form and completely fills the internal spaces of the inclined grooves 9 and dovetail grooves 11. After curing, the solidified body formed by the rigid polyurethane foam coating 2 creates numerous physical interlocks within these grooves, resulting in an inseparable mechanical lock between the rigid polyurethane foam coating 2 and the rear surfaces of the C-shaped steel beam 1 and the wall bricks 6, ultimately forming a robust whole relying on interlocking physical structures. The rigid polyurethane foam spray coating 2 is a continuous and seamless whole, completely covering the C-shaped steel beam 1 and the rear exterior wall surface of all wall bricks 6, achieving integrated thermal insulation and waterproofing. The T-shaped bricks 7 are integrally molded with the wall bricks 6; The I-beam 3 is fixedly connected to the top interior space of the C-beam 1 by high-strength bolts 5. The I-beam 3 is used to enhance the top rigidity of the wall, improving its overall stability and resistance to deformation. Similarly, the gypsum board 4 is fixedly connected to the front inner wall of the C-beam 1 by high-strength bolts 5. The installation of the gypsum board 4 forms the interior surface of the wall, providing a flat wall base for subsequent interior decoration. The high-strength bolts 5, acting as connectors, pass through the gypsum board 4 and the I-beam 3 and are fastened to the C-beam 1, ensuring a firm and reliable connection between the components. Each wall tile 6 has a T-shaped brick 7 fixedly connected to one outer edge, and the other side... The inner wall is provided with positioning grooves 10. In the assembled state, two adjacent wall tiles 6 are spliced ​​by inserting the T-shaped brick 7 of one wall tile into the positioning groove 10 of the other wall tile, ensuring the tightness of the connection between the wall tile modules and the accuracy of positioning. The T-shaped brick 7 and the wall tile 6 are integrally formed, which improves the connection strength and production efficiency. For locking the end of the wall, the I-shaped brick 8 is I-shaped, with one half inserted into the positioning groove 10 of the last wall tile 6, and the other half inserted into the T-shaped slide rail groove of the C-shaped steel beam 1 on the right. The outer surface of the I-shaped brick 8 is tightly fitted with the inner wall of the C-shaped steel beam 1 and the inner wall of the positioning groove 10, ensuring that the entire row of wall tiles 6 is firmly locked in the lateral direction, preventing the wall tiles from loosening or shifting, and ensuring the integrity and flatness of the wall surface. To enhance the mechanical anchoring force between the rigid polyurethane foam coating 2 and the C-shaped steel beam 1, please refer to... Figure 1 and Figure 2Multiple inclined grooves 9 are formed on the outer rear surface of the C-shaped steel beam 1, and the inner walls of adjacent inclined grooves 9 are V-shaped and symmetrically inclined. This V-shaped symmetrical structure allows the rigid polyurethane foam spray coating 2, which is filled and cured within the grooves, to form a wedge-shaped interlock, improving its tensile and shear resistance. To enhance the mechanical anchoring force between the rigid polyurethane foam spray coating 2 and the wall bricks 6, please refer to... Figure 1 and Figure 2 The dovetail groove 11, located on the outer rear surface of wall tile 6, has an inverted hook structure with a smaller outer opening and a larger inner opening. Specifically, the width of the opening of the dovetail groove 11 is smaller than the width of the bottom. After the liquid rigid polyurethane foam spray coating 2 is filled and cured, the resulting solidified body is firmly hooked and locked inside the dovetail groove 11, making it difficult to separate even under great external force. To ensure the tightness and precision of the connection between wall tiles 6 and between wall tiles 6 and C-shaped steel beam 1, please refer to... Figure 1 The T-shaped brick 7 includes a T-shaped head, and the inner wall of the positioning groove 10 has a groove shape that matches the T-shaped head, allowing the head of the T-shaped brick 7 to fit tightly into the inner wall of the positioning groove 10, eliminating splicing gaps and ensuring the flatness of the wall surface. The rigid polyurethane foam spray coating 2 is a continuous and seamless whole. This not only ensures the uniformity of thermal insulation performance and avoids the thermal bridging effect caused by splicing gaps, but also forms a complete waterproof barrier, covering the entire rear exterior wall surface of the C-shaped steel beam 1 and all wall bricks 6, thus achieving integrated functions of thermal insulation and waterproofing. The T-shaped brick 7 and the wall brick 6 are integrally molded, simplifying the number of parts and reducing production and assembly processes. At the same time, the absence of additional connection points also enhances the structural strength and durability of the T-shaped brick 7.

[0020] Working principle: During wall installation, the rear positions of the two C-shaped steel beams 1, which serve as the vertical support frame, are first fixed. Then, the T-shaped brick 7 on the outer left edge of the first wall tile 6 is aligned with the T-shaped groove on the inner wall of the left C-shaped steel beam 1, and the head of the T-shaped brick 7 is slid in and locked into the T-shaped groove of the C-shaped steel beam 1. Next, another wall tile 6 is taken, and its outer left edge T-shaped brick 7 is inserted into the positioning groove 10 on the inner right wall of the previous wall tile 6. The T-shaped head of the T-shaped brick 7 and the groove shape of the inner wall of the positioning groove 10 achieve a tight fit. Multiple wall tiles 6 are then spliced ​​together from left to right until the outer right surface of the last wall tile 6 is flush with the inner surface of the right C-shaped steel beam 1. At this point, the left half of the specially made I-shaped brick 8 is inserted into the positioning groove 10 on the right side of the last wall brick 6, while its right half is inserted into the T-shaped slide rail groove of the right C-shaped steel beam 1. The I-shaped brick 8 acts as a locking pin, firmly fixing the right end of the entire row of wall bricks 6 to the right C-shaped steel beam 1. Subsequently, the I-shaped steel beam 3 is fixed to the top interior space of the C-shaped steel beam 1 using high-strength bolts 5 to enhance the top rigidity of the wall. At the same time, the gypsum board 4 is fixed to the front inner wall of the C-shaped steel beam 1 using high-strength bolts 5 to form the interior surface of the wall. Finally, thermal insulation treatment is performed by uniformly spraying a rigid polyurethane foam coating 2 onto the rear outer surface of the C-shaped steel beam 1 and the rear outer surface of all wall bricks 6. During the spraying process, the liquid rigid polyurethane foam coating 2 flows and fills the internal space of the pre-set inclined grooves 9 on the rear outer surface of the C-shaped steel beam 1 and the interior of the densely packed dovetail grooves 11 on the rear outer surface of the wall bricks 6. Because the inner walls of two adjacent inclined grooves 9 are V-shaped and symmetrically inclined, and the inner walls of the dovetail grooves 11 have an inverted hook structure with a smaller outer diameter and a larger inner diameter, after the rigid polyurethane foam coating 2 foams and cures, its cured body forms a large number of physical interlocks inside these grooves, thereby creating an inseparable locking and fixation between the rigid polyurethane foam coating 2 and the rear side of the C-shaped steel beam 1 and the rear side of the wall bricks 6.

Claims

1. A rigid polyurethane foam insulation and waterproofing integrated wall system for prefabricated steel structure residential buildings, characterized in that, include: C-shaped steel beam (1), and T-shaped slide rail grooves extending along its length are provided on the opposite inner walls of the C-shaped steel beam (1); Multiple wall bricks (6), each of the wall bricks (6) has a T-shaped brick (7) fixedly connected to one outer edge, and a positioning groove (10) opened on the inner wall of the other side; The wall brick (8) is a T-shaped brick (7) of the initial wall brick (6) that slides into the T-shaped groove of one of the C-shaped steel beams (1). The remaining wall bricks (6) are spliced ​​together in sequence. The T-shaped brick (7) of the next wall brick (6) is inserted and fixed in the positioning groove (10) of the previous wall brick (6). Half of the I-shaped brick (8) is inserted into the positioning groove (10) of the last wall brick (6), and the other half of the I-shaped brick (8) is inserted into the T-shaped groove of the opposite C-shaped steel beam (1) to achieve locking pin fixation. The rigid polyurethane foam spray coating (2) has an inclined groove (9) on the rear outer surface of the C-shaped steel beam (1) and a dovetail groove (11) on the rear outer surface of the wall brick (6). The cured body formed by the rigid polyurethane foam spray coating (2) after curing fills the interior of the inclined groove (9) and the dovetail groove (11) to form a physical lock.

2. The prefabricated steel structure residential rigid polyurethane foam insulation and waterproofing integrated wall system according to claim 1, characterized in that: There are multiple inclined grooves (9), and the inner walls of two adjacent inclined grooves (9) are V-shaped and mutually inclined and symmetrical.

3. The prefabricated steel structure residential rigid polyurethane foam insulation and waterproofing integrated wall system according to claim 1, characterized in that: The inner wall of the dovetail groove (11) has an inverted hook structure with a smaller outer diameter and a larger inner diameter, and the width of the opening of the dovetail groove (11) is smaller than the width of its bottom.

4. The prefabricated steel structure residential rigid polyurethane foam insulation and waterproofing integrated wall system according to claim 1, characterized in that: The T-shaped brick (7) includes a T-shaped head, and the inner wall of the positioning groove (10) is provided with a groove shape that matches the T-shaped head to achieve a tight fit.

5. The prefabricated steel structure residential rigid polyurethane foam insulation and waterproofing integrated wall system according to claim 1, characterized in that: It also includes an I-beam (3) and high-strength bolts (5), wherein the I-beam (3) is fixedly connected to the top interior space of the C-beam (1) by the high-strength bolts (5).

6. The prefabricated steel structure residential rigid polyurethane foam insulation and waterproofing integrated wall system according to claim 5, characterized in that: It also includes a gypsum board (4), which is fixedly connected to the inner front wall of the C-shaped steel beam (1) by the high-strength bolts (5).

7. The prefabricated steel structure residential rigid polyurethane foam insulation and waterproofing integrated wall system according to claim 1, characterized in that: The rigid polyurethane foam spray coating (2) is a continuous and seamless whole, and completely covers the rear exterior wall surface of the C-shaped steel beam (1) and all wall bricks (6).

8. The prefabricated steel structure residential rigid polyurethane foam insulation and waterproofing integrated wall system according to claim 1, characterized in that: The T-shaped brick (7) and the wall brick (6) are integrally formed.

Images