A chimeric wallboard

Abstract

The utility model discloses a kind of embedded wallboards for fabricated building, including outer wallboard assembly, wallboard frame, inner wallboard assembly and first fastening screw. Outer wallboard assembly and inner wallboard assembly are arranged at intervals, and wallboard frame is located between the two. Outer wallboard assembly contains at least two groups of outer wallboard units, which are provided with U-shaped groove-shaped first bending part at first end, and L-shaped second bending part at second end;When adjacent unit is assembled, second bending part is placed in the U-shaped groove of first bending part, and first fastening screw is screwed with wallboard frame in sequence by passing through the two. Inner wallboard assembly is fixedly connected with wallboard frame. The structure forms the first waterproof barrier by lapping, avoids screw loosening, splicing seam misplacement and leakage hidden danger caused by vibration, temperature deformation, and guarantees the waterproof and thermal insulation function of wallboard.

Description

Technical Field

[0001] This utility model relates to the field of construction, and in particular to an interlocking wall panel. Background Technology

[0002] As an emerging force in the construction industry, prefabricated construction has attracted considerable attention in recent years. National and local governments have vigorously promoted green building development and introduced relevant policies to encourage its application. Prefabricated construction has already begun to emerge in various fields. In the tourism and resort sector, it is commonly seen in distinctive homestays and mobile sales offices; in commercial settings, it is also widely used in shops and temporary exhibition venues. Furthermore, some leading companies have expanded its application to comprehensive fields such as medical quarantine, schools, and data centers.

[0003] Currently, in traditional prefabricated house wall panel insulation composite structures, the connection between adjacent wall panels and frames is mostly achieved by screws for rigid fixation. During long-term use, the screws are prone to loosening due to vibration and temperature deformation, which in turn leads to misalignment of the wall panel joints and gradually forms a systemic leakage hazard. Over time, this hazard may further develop into rainwater infiltration or thermal performance degradation, seriously affecting the waterproof and thermal insulation functions of the wall panels. Utility Model Content

[0004] In view of this, the present utility model discloses an interlocking wall panel, including an outer wall panel assembly, a wall panel frame, an inner wall panel assembly, and a first fastening screw. The outer wall panel assembly and the inner wall panel assembly are spaced apart, and the wall panel frame is located between the outer wall panel assembly and the inner wall panel assembly.

[0005] The exterior wall panel assembly includes at least two sets of exterior wall panel units. The first end of the exterior wall panel unit in the width direction is provided with a first bending portion, which is a U-shaped groove structure. The second end of the exterior wall panel unit in the width direction is provided with a second bending portion. The second bending portion of the second exterior wall panel unit is located in the U-shaped groove of the first bending portion of the first exterior wall panel unit. The first fastening screw passes through the second bending portion and the first bending portion in sequence and is screwed to the wall panel frame.

[0006] As a supplement to the technical solution of this utility model, the first bending part includes a first vertical bend, a first horizontal bend, and a second vertical bend. The first vertical bend is a bend formed by bending the end of the outer wall panel unit towards the wall panel frame. The first vertical bend is perpendicular to the panel of the outer wall panel unit. The second vertical bend is spaced apart from the first vertical bend and is arranged parallel to each other. The first vertical bend and the second vertical bend are connected to the first horizontal bend at the end near the wall panel frame. The first vertical bend, the first horizontal bend, and the second vertical bend form a U-shaped groove structure.

[0007] The second bending portion includes a third vertical bend and a second horizontal bend. The third vertical bend is formed by bending the end of the outer wall panel unit towards the wall panel frame. The second horizontal bend is perpendicular to the third vertical bend and is located at the end of the third vertical bend closest to the wall panel frame, thus forming an L-shaped structure for the second bending portion.

[0008] In two adjacent sets of exterior wall panel units, the second lateral bend of the second bend of the exterior wall panel unit on the right side contacts the first lateral bend of the first bend of the exterior wall panel unit on the left side, and the third vertical bend of the second bend contacts the second vertical bend of the first bend. The first fastening screw passes through the second lateral bend and the first lateral bend in sequence and connects to the wall panel frame.

[0009] As a supplement to the technical solution of this utility model, it also includes a U-shaped beam. The U-shaped beam has a U-shaped cross-section and is inserted into the U-shaped groove formed by the first bend and the second bend. The U-shaped beam includes a first vertical side, a second vertical side, and a first horizontal side. The first horizontal side is located between the first vertical side and the second vertical side. The first vertical side of the U-shaped beam contacts the first vertical bend of the first bend and is connected by adhesive. The second vertical side of the U-shaped beam contacts the third vertical bend of the second bend and is connected by adhesive. The first horizontal side of the U-shaped beam is on the same plane as the surface of the outer wall panel unit.

[0010] As a supplement to the technical solution of this utility model, the end of the outer wall panel unit in the length direction is provided with a bent edge facing the wall panel frame, and the bent edge at the end of the outer wall panel unit in the length direction is screwed to the wall panel frame.

[0011] As a supplement to the technical solution of this utility model, it also includes a thermal insulation layer. The wall panel frame includes horizontal beams and vertical beams. The horizontal beams are provided in two sets and are arranged in parallel relative to each other. Several sets of vertical beams are evenly arranged between the two sets of horizontal beams. A set of thermal insulation layer is provided between two adjacent vertical beams.

[0012] As a supplement to the technical solution of this utility model, it also includes a fitting connector and a second fastening screw. The side surface of the outer wall panel unit near the wall panel frame is provided with an outer wall panel reinforcing rib. The outer wall panel reinforcing rib is arranged laterally and is evenly arrayed along the length direction of the outer wall panel.

[0013] The external wall panel reinforcing ribs are formed by two L-shaped corner members spaced apart. The first side of the two L-shaped corner members is perpendicular to the surface of the external wall panel, and the second side is parallel to the surface of the external wall panel, so that the external wall panel reinforcing ribs form a groove structure with the opening facing the wall panel frame.

[0014] The fitting connector has an L-shaped structure. The first side of the fitting connector has a strip-shaped slot that mates with the L-shaped angle bracket. There are two sets of the strip-shaped slots, which can respectively mate with the second sides of the two L-shaped angle brackets. The second sides of the two L-shaped angle brackets are respectively inserted into the strip-shaped slots on the first side of the fitting connector. The second side of the fitting connector contacts the side surface of the insulation layer away from the outer wall panel unit and is connected to the insulation layer by the second fastening screw.

[0015] As a supplement to the technical solution of this utility model, it also includes a fitting corner bracket, a fitting pendant, and a fitting fastener;

[0016] The inner wall panel assembly includes at least two sets of inner wall panel units. Each inner wall panel unit has a bent edge facing the wall panel frame at its end in the width direction. The bent edges of the two sets of inner wall panel units in the width direction are fixedly connected.

[0017] The fitting angle bracket has an L-shaped structure. The first side of the fitting angle bracket is fixedly connected to the bent edge at the end of the inner wall panel in the width direction. The fitting fastener is set on the second side of the fitting angle bracket. The upper part of the fitting fastener is attached to the fitting angle bracket and connected by screws. The lower part of the fitting fastener is separated from the fitting angle bracket.

[0018] The lower part of the fastener is attached to and fixedly connected to the vertical beam of the wall panel frame, while the upper part of the fastener is separated from the vertical beam of the wall panel frame.

[0019] The lower part of the interlocking fastener on the interior wall panel unit is inserted between the upper part of the interlocking bracket and the wall panel frame. In this state, the upper part of the interlocking bracket is located between the lower part of the interlocking fastener and the interlocking corner bracket.

[0020] As a supplement to the technical solution of this utility model, the vertical end of the inner wall panel unit is provided with a bent edge facing the wall panel frame, and the bent edge at the vertical end of the inner wall panel unit is connected to the crossbeam of the wall panel frame by screws.

[0021] As a supplement to the technical solution of this utility model, the inner wall panel unit is provided with inner wall panel reinforcing ribs on the panel surface near the wall panel frame. The inner wall panel reinforcing ribs are arranged horizontally, and their two ends are respectively welded to the bent edges at the ends of the inner wall panel unit in the width direction.

[0022] As a supplement to the technical solution of this utility model, the exterior wall panel assembly, the interior wall panel assembly, and the wall panel frame are all made of aluminum alloy.

[0023] Beneficial Effects: The interlocking wall panel disclosed in this utility model achieves superior waterproofing performance by overlapping the first and second bends of the outer wall panel unit to form a first waterproof barrier, which, combined with a U-shaped beam, constitutes a second waterproof barrier. This achieves composite protection through structural waterproofing and adhesive material waterproofing, significantly improving waterproofing reliability and effectively solving the leakage risks that easily occur with traditional rigid connections. Regarding structural stability, the vertical end bends of the outer wall panel unit are screwed to the wall panel frame, and the interlocking connectors provide rigid fixation for the insulation layer. Combined with various fixing methods for the inner wall panel unit, this significantly enhances the overall structural stability, preventing components from loosening or falling off. In terms of thermal insulation performance, the insulation layer installed within the wall panel frame, along with a reasonable structural design, effectively improves the insulation effect of the wall panel, meeting building energy conservation requirements. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0025] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0026] Figure 3 This is a schematic diagram of the external wall panel unit structure of this utility model.

[0027] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0028] Figure 5 This is a schematic diagram of the first bending section.

[0029] Figure 6 This is a schematic diagram of the second bend.

[0030] Figure 7 This is a schematic diagram of the assembly of two adjacent exterior wall panel units and a U-shaped beam.

[0031] Figure 8 This is a schematic diagram of the assembly structure of the wall panel frame and insulation layer of this utility model.

[0032] Figure 9 This is a schematic diagram of the reinforcing bars for an exterior wall panel unit.

[0033] Figure 10 This is a schematic diagram of the assembly structure of the exterior wall panel unit, the interlocking connectors, and the insulation layer.

[0034] Figure 11 This is a schematic diagram of the interlocking connector structure.

[0035] Figure 12 This is a schematic diagram of the internal wall panel unit structure of this utility model.

[0036] Figure 13 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0037] Figure 14 This is a schematic diagram of the assembly structure of the interlocking fasteners and wall panel frame.

[0038] Figure 15 This is a schematic diagram of the assembly structure of the corner brackets, hanging parts, and interior wall panel units.

[0039] In the diagram: 1. Exterior wall panel unit, 2. Wall panel frame, 3. Interior wall panel unit, 4. First bend, 5. Second bend, 6. First vertical bend, 7. First horizontal bend, 8. Second vertical bend, 9. Third vertical bend, 10. Second horizontal bend, 11. First fastening screw, 12. U-shaped beam, 13. First vertical side, 14. Second vertical side, 15. First horizontal side, 16. Horizontal beam, 17. Vertical beam, 18. Fitting connector, 19. Corner piece, 20. Fitting corner bracket, 21. Fitting hanger, 22. Fitting fastener, 23. Exterior wall panel reinforcing rib, 24. Insulation layer, 25. Strip groove, 26. Interior wall panel reinforcing rib. Detailed Implementation

[0040] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] like Figures 1 to 15 As shown, a type of interlocking wall panel for use in prefabricated buildings includes an outer wall panel assembly, a wall panel frame 2, an inner wall panel assembly, and a first fastening screw 11. The outer wall panel assembly and the inner wall panel assembly are spaced apart, and the wall panel frame 2 is located between the outer wall panel assembly and the inner wall panel assembly.

[0043] The exterior wall panel assembly includes at least two sets of exterior wall panel units 1. The first end of the exterior wall panel unit 1 in the width direction is provided with a first bending portion 4, which is a U-shaped groove structure. The second end of the exterior wall panel unit 1 in the width direction is provided with a second bending portion 5. When two adjacent sets of exterior wall panel units 1 are assembled, the second bending portion 5 of the second exterior wall panel unit 1 is located in the U-shaped groove of the first bending portion 4 of the first exterior wall panel unit 1. The first fastening screw passes through the second bending portion 5 and the first bending portion 4 in sequence and is screwed to the wall panel frame 2.

[0044] The inner wall panel assembly is fixedly connected to the wall panel frame 2.

[0045] With the above setup, two adjacent sets of exterior wall panel units 1 can be connected by overlapping, and then fixed to the wall panel frame 2 by screws to form the first waterproof barrier. This avoids the technical problem that the screws may loosen due to vibration and temperature deformation during long-term use, which could lead to misalignment of the wall panel joints and gradually form a systemic leakage hazard.

[0046] As a supplement to the above technical solution, the first bending portion 4 includes a first vertical bend 6, a first horizontal bend 7, and a second vertical bend 8. The first vertical bend 6 is a bend formed by bending the end of the outer wall panel unit 1 towards the wall panel frame 2. The first vertical bend 6 is perpendicular to the panel of the outer wall panel unit 1. The second vertical bend 8 is spaced apart from and parallel to the first vertical bend 6. The first horizontal bend 7 is connected to the end of the first vertical bend 6 and the second vertical bend 8 near the wall panel frame 2. The first vertical bend 6, the first horizontal bend 7, and the second vertical bend 8 form a U-shaped groove structure. The length of the second vertical bend 8 is less than the length of the first vertical bend 6.

[0047] The second bending portion 5 includes a third vertical bend 9 and a second horizontal bend 10. The third vertical bend 9 is a bend formed by bending the end of the outer wall panel unit 1 toward the wall panel frame 2. The second horizontal bend 10 is arranged perpendicularly to the third vertical bend 9 and is located at the end of the third vertical bend 9 near the wall panel frame 2, so that the second bending portion 5 forms an L-shaped structure.

[0048] When the first bend 4 and the second bend 5 cooperate with each other, the second lateral bend 10 of the second bend 5 contacts the first lateral bend 7 of the first bend 4, and the third vertical bend 9 of the second bend 5 contacts the second vertical bend 8 of the first bend 4. Then the first fastening screw passes through the second lateral bend 10 and the first lateral bend 7 in sequence and is connected to the wall panel frame 2.

[0049] In the above technical solution, when the second bending part 5 is placed inside the first bending part 4, the structure formed by the second bending part 5 and the first bending part 4 is also a U-shaped groove structure.

[0050] As a supplement to the above technical solution, a U-shaped beam 12 is also included. The U-shaped beam 12 has a U-shaped cross-section and is inserted into the U-shaped groove formed by the first bending part 4 and the second bending part 5. The U-shaped beam 12 includes a first vertical side 13, a second vertical side 14, and a first horizontal side 15. The first horizontal side 15 is located between the first vertical side 13 and the second vertical side 14. The first vertical side 13 of the U-shaped beam 12 contacts the first vertical bending side 6 of the first bending part 4 and is connected by adhesive. The second vertical side 14 of the U-shaped beam 12 contacts the third vertical bending side 9 of the second bending part 5 and is connected by adhesive. The first horizontal side 15 of the U-shaped beam 12 is on the same plane as the surface of the outer wall panel unit 1.

[0051] The U-shaped beam 12 serves to block the connection between the two sets of exterior wall panel units 1, forming a second waterproof barrier and achieving a composite barrier of structural waterproofing and adhesive material waterproofing. In addition to its waterproofing function, it enhances aesthetics and prevents the first fastening screw 11 from directly contacting the outside environment, thus preventing corrosion.

[0052] As a supplement to the above technical solution, the vertical end of the outer wall panel unit 1 is provided with a bent edge facing the wall panel frame 2. The bent edge at the vertical end of the outer wall panel unit 1 is screwed to the wall panel frame 2 to further fix the outer wall panel unit 1 to the wall panel frame 2 and improve the structural stability.

[0053] As a preferred embodiment of this invention, it further includes an insulation layer 24. The wall panel frame 2 includes horizontal beams 16 and vertical beams 17. The horizontal beams 16 are arranged in two sets and are relatively parallel. Several sets of vertical beams 17 are evenly distributed between the two sets of horizontal beams 16, and an insulation layer 24 is provided between two adjacent vertical beams 17. The insulation layer 24 can improve the insulation performance of the wall panel.

[0054] As a supplement to the above technical solution, it also includes a fitting connector 18 and a second fastening screw. The side surface of the exterior wall panel unit 1 near the wall panel frame 2 is provided with exterior wall panel reinforcing ribs 23. The exterior wall panel reinforcing ribs 23 are arranged laterally and uniformly arrayed along the length of the exterior wall panel. The exterior wall panel reinforcing ribs 23 are groove structures with openings facing the wall panel frame 2, specifically formed by two L-shaped angle members 19 spaced apart. The first side of the two L-shaped angle members 19 is perpendicular to the surface of the exterior wall panel, and the second side is parallel to the surface of the exterior wall panel.

[0055] The fitting connector 18 has an L-shaped structure. The first side of the fitting connector 18 is provided with a strip-shaped slot 25 that mates with the L-shaped angle member 19. There are two sets of the strip-shaped slot 25, which can respectively mate with the second side of the two L-shaped angle members 19, so that the second side of the two L-shaped angle members 19 is inserted into the strip-shaped slot 25 on the first side of the fitting connector 18. The second side of the fitting connector 18 contacts the side surface of the insulation layer 24 away from the outer wall panel unit 1, and is connected to the insulation layer 24 by the second fastening screw.

[0056] Multiple sets of interlocking connectors 18 are evenly arrayed along the length of the reinforcing ribs 23 of the outer wall panel.

[0057] During actual installation, the width direction of the first side of the fitting connector 18 can be adjusted to be parallel to the length direction of the reinforcing rib 23 of the outer wall panel. The fitting connector 18 is then inserted between the two sets of L-shaped corner pieces 19 through the gap between their second sides. The fitting connector 18 is then rotated 90° so that the strip-shaped slot 25 on the first side of the fitting connector 18 engages with the second side of the L-shaped corner piece 19, allowing the second side of the L-shaped corner piece 19 to be inserted into the strip-shaped slot 25 on the first side of the fitting connector 18, thus limiting the fitting connector 18. After rotating the fitting connector 18 90°, the second side of the fitting connector 18 can fit against the insulation layer 24. Then, the second fastening screw is used to fix the fitting connector 18 to the insulation layer 24. Through the above settings, the insulation layer 24 is connected to the outer wall panel unit 1 through the fitting connector 18. Compared to traditional technical solutions, where the bonding of insulation materials to panels and back panels mainly relies on adhesives, adhesives can experience accelerated aging, reduced bonding performance, or even complete failure under high temperature and humidity conditions. This can lead to the separation of the insulation material from the panel interface, and in severe cases, large areas of the insulation layer may fall off, directly weakening the composite insulation effect of the wall panel. This invention avoids the technical problem of adhesive degradation and aging under high temperature and humidity conditions by using a rigid connection method.

[0058] As a preferred technical solution of this utility model, it also includes a corner bracket 20, a hanging piece 21, and a fastener 22.

[0059] The interior wall panel assembly includes at least two sets of interior wall panel units 3. The ends of the interior wall panel units 3 in the width direction are provided with bent edges facing the wall panel frame 2. The bent edges of the two sets of interior wall panel units 3 in the width direction can be fixedly connected by screws or by welding.

[0060] The fitting angle bracket 20 has an L-shaped structure. The first side of the fitting angle bracket 20 is fixedly connected to the bent edge at the end of the width direction of the inner wall panel. The fitting fastener 22 is set on the second side of the fitting angle bracket 20. The upper part of the fitting fastener 22 is attached to the fitting angle bracket 20 and connected by screws. The lower part of the fitting fastener 22 is separated from the fitting angle bracket 20.

[0061] The lower part of the fastener 22 is attached to and fixedly connected to the vertical beam 17 of the wall panel frame 2, while the upper part of the fastener 22 is separately disposed from the vertical beam 17 of the wall panel frame 2. Figure 14 , Figure 15 As shown, both the interlocking fastener 22 and the interlocking hanging piece 21 are Z-shaped structures.

[0062] When the outer wall panel unit 1 is assembled with the wall panel frame 2, the lower part of the fitting fastener 22 on the inner wall panel unit 3 is inserted between the upper part of the fitting bracket 21 and the wall panel frame. In this state, the upper part of the fitting bracket 21 is located between the lower part of the fitting fastener 22 and the fitting corner bracket 20.

[0063] With the above settings, the technical effect of achieving preliminary assembly of the exterior wall panel unit 1 and the interior wall panel by simply hanging them together can be achieved, which can greatly improve assembly efficiency.

[0064] As a supplement to the above technical solution, the vertical end of the inner wall panel unit 3 is provided with a bent edge facing the wall panel frame 2. The bent edge at the vertical end of the inner wall panel unit 3 is connected to the crossbeam 16 of the wall panel frame 2 by screws, so as to realize the fixed connection between the wall panel unit and the wall panel frame 2.

[0065] As a supplement to the above technical solution, the inner wall panel unit 3 is provided with an inner wall panel reinforcing rib 26 on the side of the panel close to the wall panel frame 2. The inner wall panel reinforcing rib 26 is arranged horizontally, and its two ends are welded to the bent edge at the width end of the inner wall panel unit 3. The setting of the inner wall panel reinforcing rib 26 can improve the structural stability of the inner wall panel unit 3, while also ensuring the structural stability of the bent edge at the width end of the inner wall panel unit 3.

[0066] As a supplement to the technical solution of this utility model, the exterior wall panel assembly, the interior wall panel assembly, and the wall panel frame 2 are all made of aluminum alloy. By using aluminum alloy materials to replace steel materials, the installation load is reduced by utilizing its lightweight characteristics, the service life is extended by its excellent corrosion resistance, and the aesthetic requirements of different architectural styles are met by relying on diverse surface treatment processes.

[0067] The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be included within the protection scope of the present invention.

Claims

1. A chimeric wallboard, characterized by, It includes an outer wall panel assembly, a wall panel frame (2), an inner wall panel assembly, and a first fastening screw (11). The outer wall panel assembly and the inner wall panel assembly are spaced apart, and the wall panel frame (2) is located between the outer wall panel assembly and the inner wall panel assembly. The exterior wall panel assembly includes at least two sets of exterior wall panel units (1). The first end of the exterior wall panel unit (1) in the width direction is provided with a first bending part (4). The first bending part (4) is a U-shaped groove structure. The second end of the exterior wall panel unit (1) in the width direction is provided with a second bending part (5). The second bending part (5) of the second exterior wall panel unit (1) is located in the U-shaped groove of the first bending part (4) of the first exterior wall panel unit (1). The first fastening screw passes through the second bending part (5) and the first bending part (4) in sequence and is screwed to the wall panel frame (2).

2. The chimeric wallboard of claim 1, wherein, The first bending part (4) includes a first vertical bend (6), a first horizontal bend (7), and a second vertical bend (8). The first vertical bend (6) is a bend formed by bending the end of the outer wall panel unit (1) toward the wall panel frame (2). The first vertical bend (6) is perpendicular to the panel of the outer wall panel unit (1). The second vertical bend (8) is spaced apart from the first vertical bend (6) and parallel to each other. The first vertical bend (6) and the second vertical bend (8) are connected to the first horizontal bend (7) at the end near the wall panel frame (2). The first vertical bend (6), the first horizontal bend (7), and the second vertical bend (8) form a U-shaped groove structure. The second bending portion (5) includes a third vertical bend (9) and a second horizontal bend (10). The third vertical bend (9) is a bend formed by bending the end of the outer wall panel unit (1) toward the wall panel frame (2). The second horizontal bend (10) is perpendicular to the third vertical bend (9) and is located at the end of the third vertical bend (9) near the wall panel frame (2), so that the second bending portion (5) forms an L-shaped structure. In two adjacent sets of exterior wall panel units (1), the second horizontal bend (10) of the second bend (5) of the exterior wall panel unit (1) on the right side contacts the first horizontal bend (7) of the first bend (4) of the exterior wall panel unit (1) on the left side, and the third vertical bend (9) of the second bend (5) contacts the second vertical bend (8) of the first bend (4). The first fastening screw passes through the second horizontal bend (10) and the first horizontal bend (7) in sequence and connects to the wall panel frame (2).

3. The chimeric wallboard of claim 1, wherein, It also includes a U-shaped beam (12), the U-shaped beam (12) has a U-shaped cross section, which is inserted into the U-shaped groove formed by the first bending part (4) and the second bending part (5). The U-shaped beam (12) includes a first vertical side (13), a second vertical side (14), and a first horizontal side (15). The first horizontal side (15) is located between the first vertical side (13) and the second vertical side (14). The first vertical side (13) of the U-shaped beam (12) contacts the first vertical bending side (6) of the first bending part (4) and is connected by adhesive. The second vertical side (14) of the U-shaped beam (12) contacts the third vertical bending side (9) of the second bending part (5) and is connected by adhesive. The first horizontal side (15) of the U-shaped beam (12) is on the same plane as the surface of the outer wall panel unit (1).

4. The chimeric wallboard of claim 1, wherein, The outer wall panel unit (1) has a bent edge at its end in the length direction facing the wall panel frame (2), and the bent edge at the end in the length direction of the outer wall panel unit (1) is screwed to the wall panel frame (2).

5. The chimeric wallboard of claim 1, wherein, It also includes a thermal insulation layer (24). The wall panel frame (2) includes a horizontal beam (16) and a vertical beam (17). The horizontal beam (16) is provided in two sets and is arranged in parallel. Several sets of vertical beams (17) are evenly arranged between the two sets of horizontal beams (16). A set of thermal insulation layer (24) is provided between two adjacent vertical beams (17).

6. A chimeric wallboard according to claim 5, wherein, It also includes a fitting connector (18) and a second fastening screw. The outer wall panel unit (1) is provided with an outer wall panel reinforcing rib (23) on the side surface near the wall panel frame (2). The outer wall panel reinforcing rib (23) is arranged laterally and is evenly arrayed along the length of the outer wall panel. The external wall panel reinforcing rib (23) includes two L-shaped corner pieces (19) spaced apart. The first side of the two L-shaped corner pieces (19) is perpendicular to the surface of the external wall panel, and the second side is parallel to the surface of the external wall panel, so that the external wall panel reinforcing rib (23) forms a groove structure with the opening facing the wall panel frame (2). The fitting connector (18) has an L-shaped structure. The first side of the fitting connector (18) is provided with a strip-shaped slot (25) that matches the L-shaped angle (19). There are two sets of the strip-shaped slot (25) so that they can match the second side of the two L-shaped angles (19) respectively. The second side of the two L-shaped angles (19) is inserted into the strip-shaped slot (25) on the first side of the fitting connector (18). The second side of the fitting connector (18) contacts the side surface of the insulation layer (24) away from the outer wall panel unit (1) and is connected to the insulation layer (24) by the second fastening screw.

7. The chimeric wallboard of claim 1, wherein, It also includes interlocking corner brackets (20), interlocking pendants (21), and interlocking fasteners (22); The inner wall panel assembly includes at least two sets of inner wall panel units (3). The ends of the inner wall panel units (3) in the width direction are provided with bent edges facing the wall panel frame (2). The bent edges of the two sets of inner wall panel units (3) in the width direction are fixedly connected. The fitting angle bracket (20) has an L-shaped structure. The first side of the fitting angle bracket (20) is fixedly connected to the bent edge at the end of the width direction of the inner wall panel. The fitting fastener (22) is set on the second side of the fitting angle bracket (20). The upper part of the fitting fastener (22) is attached to the fitting angle bracket (20) and connected by screws. The lower part of the fitting fastener (22) is separated from the fitting angle bracket (20). The lower part of the fitting fastener (22) is attached to and fixedly connected to the vertical beam (17) of the wall panel frame (2), and the upper part of the fitting fastener (22) is separated from the vertical beam (17) of the wall panel frame (2). The lower part of the fitting fastener (22) on the inner wall panel unit (3) is inserted between the upper part of the fitting bracket (21) and the wall panel frame. In this state, the upper part of the fitting bracket (21) is located between the lower part of the fitting fastener (22) and the fitting corner bracket (20).

8. A chimeric wallboard according to claim 7, wherein, The vertical end of the inner wall panel unit (3) is provided with a bent edge facing the wall panel frame (2), and the bent edge at the vertical end of the inner wall panel unit (3) is connected to the crossbeam (16) of the wall panel frame (2) by screws.

9. The chimeric wallboard of claim 7, wherein, The inner wall panel unit (3) has an inner wall panel reinforcing rib (26) on the side of the wall panel frame (2). The inner wall panel reinforcing rib (26) is arranged horizontally, and its two ends are welded to the bent edge of the inner wall panel unit (3) in the width direction.

10. The chimeric wallboard of claim 1, wherein, The exterior wall panel assembly, interior wall panel assembly, and wall panel frame (2) are all made of aluminum alloy.

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