Expansion joint assembly and curtain wall

Abstract

The embodiment of the utility model provides an expansion joint assembly and a curtain wall. The expansion joint assembly is located at the junction of a first metal sandwich decorative plate and a second metal sandwich decorative plate adjacent to the first metal sandwich decorative plate and matched with connectors of the metal sandwich decorative plates on the corresponding sides so as to achieve sealing connection, and a carrier bearing the first metal sandwich decorative plate and a carrier bearing the second metal sandwich decorative plate are made of different materials. A deformation gap is formed between different carriers, and the expansion joint assembly covers the deformation gap and can deform along with the deformation difference. The expansion joint assembly comprises a side expansion joint assembly and an upper and lower expansion joint assembly, the side expansion joint assembly is located between the adjacent side edges of the first metal sandwich decorative plate and the second metal sandwich decorative plate, and the upper and lower expansion joint assembly is located between the adjacent upper and lower edges of the first metal sandwich decorative plate and the second metal sandwich decorative plate. Therefore, sealing of different structures at different boundaries and covering of deformation gaps are met. The expansion joint assembly is applied to the curtain wall, so that the attractiveness and the sealing performance of the deformation joint are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure house building materials, in particular to an expansion joint assembly and a curtain wall. Background Art

[0002] At present, steel structures are gradually being used in the construction field due to their strong appearance shaping ability, high strength, short cycle and low cost. Therefore, many buildings will adopt the combination of concrete and steel structures to absorb the advantages of both. This leads to the problem of deformation difference due to the different amounts of thermal expansion and contraction of concrete and steel structures under the influence of external temperature. The deformation difference will cause gaps at the connection between the two or stress caused by mutual squeezing, which not only affects the structural strength, but also affects the sealing, leading to the risk of water ingress into the room. Utility Model Content

[0003] In view of the above problems, an embodiment of the utility model is proposed. The purpose of the embodiment of the utility model is to provide an expansion joint assembly located at the interface connecting two adjacent metal sandwich decorative panels of different materials, which can achieve good sealing and will not be affected by the different thermal expansion and contraction of different materials.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] An expansion joint assembly is located at the junction of adjacent metal sandwich decorative panels 1 and 2, and is matched with interfaces on the corresponding sides to achieve a sealed connection. The materials of the carriers carrying the metal sandwich decorative panels 1 and 2 are different, and there is a deformation gap between the different carriers. The expansion joint assembly covers the deformation gap and can deform along with the deformation difference.

[0006] Expansion joint components include:

[0007] A side expansion joint group is located between a first metal sandwich decorative panel and a second metal sandwich decorative panel which are connected at long sides to form a horizontal row;

[0008] The upper and lower expansion joint groups, the short side of the metal sandwich decorative panel 2 is located at the upper end or lower end of the metal sandwich decorative panel 2, and the upper end of the metal sandwich decorative panel 2 and the lower end of the metal sandwich decorative panel 1 or the lower end of the metal sandwich decorative panel 2 and the upper end of the metal sandwich decorative panel 1 are sealed and connected through the upper and lower expansion joint components.

[0009] Preferably, the side expansion joint assembly comprises:

[0010] The side telescopic bracket, the outer side of the female interface of one of the metal sandwich decorative panel 1 and the metal sandwich decorative panel 2 is connected to one end of the side telescopic bracket, and the outer side of the male interface of the other is connected to the other end of the side telescopic bracket. The length of the side telescopic bracket is adjustable.

[0011] Preferably, the side telescopic bracket has a plurality of wave crests protruding outward at intervals, and the plurality of wave crests are evenly distributed between the male interface and the female interface.

[0012] Preferably, the distance between the male interface and the female interface is 100 mm.

[0013] Preferably, the side expansion joint assembly further comprises:

[0014] The connecting bracket group is abutted against the boss in the center of the female head interface and is covered on the boss. The inner side of the connecting bracket group facing away from the boss is abutted against the carrier, and the outer side extends out of the female head interface and is abutted against the side telescopic bracket.

[0015] Preferably, the connecting bracket group includes:

[0016] A support member, having an accommodation groove at one end facing the female interface, the boss being accommodated in the accommodation groove, and having a mounting plate at the inner side of one end of the support member away from the accommodation groove, the mounting plate being connected to the carrier; and

[0017] The mounting piece is L-shaped, with one end abutting against the end of the support piece away from the accommodating groove, and the other end connected to the end of the side telescopic bracket. The end of the side telescopic bracket is located between the other end of the mounting piece and the outer side wall of the female interface.

[0018] Preferably, the side expansion joint assembly further comprises:

[0019] One end of the insulation cotton is connected to the female interface, and the other end is matched and abutted with the male interface.

[0020] Preferably, the upper and lower expansion joint assemblies include:

[0021] A leveling telescopic bracket 1, one end of which is connected to the root of the outer side of the male interface, and the other end of which is located between the metal sandwich decorative panel 2 and the carrier. The end of the leveling telescopic bracket 1 connected to the male interface protrudes outward with a boss flush with the outer side of the metal sandwich decorative panel 1, and the part of the boss connected to the other end of the leveling telescopic bracket abuts against the end of the male interface; and

[0022] The second leveling telescopic bracket is connected to the carrier and is sealed at the plug interface of the female interface. The second leveling telescopic bracket is flush with the end of the female interface.

[0023] Preferably, there are sealing connectors between the first leveling telescopic bracket and the side edge of the first metal sandwich decorative panel, and between the second leveling telescopic bracket and the side edge of the first metal sandwich decorative panel.

[0024] Another object of the embodiment of the utility model is to provide a metal curtain wall with good sealing at the joints of metal sandwich panels of different materials and beautiful appearance.

[0025] To achieve this purpose, the present invention adopts the following technical solutions:

[0026] A curtain wall, comprising:

[0027] A plurality of metal sandwich decorative panels 1 arranged in sequence, a plurality of metal sandwich decorative panels 2 arranged in sequence, and expansion joint components respectively sealed and connected to the metal sandwich decorative panels 1 and the metal sandwich decorative panels 2;

[0028] The materials of the carriers carrying the first metal sandwich decorative panel and the second metal sandwich decorative panel are different, and there is a deformation gap between the different carriers, and the expansion joint assembly covers the deformation gap;

[0029] The expansion joint assembly is any one of the expansion joint assemblies described above.

[0030] The technical solution provided by the embodiment of the utility model is that the expansion joint assembly is covered at the deformation gap between carriers of different materials, and the two ends of the expansion joint assembly are respectively sealed and connected with the metal sandwich decorative panel 1 and the metal sandwich decorative panel 2 carried by the carriers of different materials, and the expansion joint assembly can deform with the deformation difference. When the carriers of different materials produce a deformation difference due to changes in the external temperature, the expansion joint assembly can deform with the size of the deformation difference without affecting the sealing connection at both ends and can always cover the deformation gap to ensure aesthetics. The metal curtain wall uses the above expansion joint assembly to ensure the beauty and sealing of the deformation gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of a metal curtain wall provided in one embodiment of the utility model;

[0033] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle;

[0034] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure at BB in the middle.

[0035] In the figure: 10, expansion joint assembly; 20, metal sandwich decorative panel 1; 30, metal sandwich decorative panel 2; 100, side expansion joint group; 110, side telescopic bracket; 111, crest; 120, connecting bracket group; 121, support member; 1211, receiving groove; 1212, mounting plate; 122, mounting member; 130, thermal insulation cotton; 140, inner telescopic bracket;

[0036] 200, upper and lower expansion joint group; 210, leveling expansion bracket 1; 211, protrusion; 220, leveling expansion bracket 2; 230, sealing connector;

[0037] 300, male connector; 310, concave connector;

[0038] 400, female connector; 410, boss; 420, lap joint. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0040] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0043] Figure 1 A schematic diagram of the structure of a metal curtain wall provided in an embodiment of the utility model is shown in FIG. Figure 1 shown.

[0044] The present embodiment provides a curtain wall, which can be applied to the exterior wall of a steel structure building. The metal curtain wall includes a plurality of metal sandwich decorative panels 20 and a plurality of metal sandwich decorative panels 30 arranged in sequence. The materials of the carriers carrying the metal sandwich decorative panels 20 and the carriers carrying the metal sandwich decorative panels 30 are different. For example, the carrier carrying the metal sandwich decorative panels 20 is a steel structure purlin keel, while the carrier carrying the metal sandwich decorative panels 30 is concrete cement. Since the materials of the two are different, the amount of thermal expansion and contraction when the external temperature changes is also different, which will cause deformation difference. In order to avoid the influence of the deformation difference on the entire curtain wall, deformation gaps are provided between carriers of different materials to accommodate the deformation difference. However, if the deformation gaps are directly exposed to the outer surface of the curtain wall, not only the appearance is affected, but also the thermal insulation and sealing effects therein will be affected.

[0045] In order to solve the above problems, the metal curtain wall of this embodiment also includes an expansion joint assembly 10, which is located at the junction of the metal sandwich decorative panel 1 20 and the metal sandwich decorative panel 2 30, and is respectively matched with the interfaces of the metal sandwich decorative panels on the corresponding sides to achieve a sealed connection. The expansion joint assembly 10 can deform along with the deformation difference, thereby not affecting the sealing of the connection.

[0046] In order to facilitate the installation of adjacent metal sandwich decorative panels and ensure the reliability of the connection, the ends of the metal sandwich decorative panels have interfaces, specifically, one side has a male interface 300, and the other side has a female interface 400. The male interface 300 of the downstream metal sandwich decorative panel is plugged into the female interface 400 of the upstream metal sandwich decorative panel to achieve the positioning and sealing connection of the two adjacent metal sandwich decorative panels. Figure 1As shown, multiple metal sandwich decorative panels are sequentially buckled through the interfaces of the long sides to form a horizontal row, which is recorded as row A, and multiple metal sandwich decorative panels are sequentially buckled through the interfaces of the short sides to form a horizontal row, which is recorded as row B. For the aesthetics of the metal curtain wall, in some embodiments of the utility model, the metal curtain wall is at certain special positions or variable carriers, such as windows or the junction of purlin keels and concrete. The following takes the window as an example for explanation. The window is located on the metal sandwich decorative panels that are continuously connected in the center of row A. The upper and lower rows connected to row A with windows are row B, and the continuous metal sandwich decorative panels on row A that constitute the boundary of the window are metal sandwich decorative panels 2 30, and the remaining metal sandwich decorative panels of rows A and B are metal sandwich decorative panels 1 20. In this case, the long side of the metal sandwich decorative panel 1 20 of row B should overlap with the short side of the metal sandwich decorative panel 2 30 on both sides along the longitudinal direction. Different lengths cannot achieve accurate docking, so the long side of the metal sandwich decorative panel 1 20 of row B does not have an interface. Then, horizontally, Figure 1 At the middle AA section, one side of the expansion joint assembly 10 located at the adjacent long side of the metal sandwich decorative panel 2 30 and the metal sandwich decorative panel 1 20 is sealed and connected to the male interface 300, and the other side is sealed and connected to the female interface 400; in the longitudinal direction, as Figure 1 At the middle BB section, the lower side of the expansion joint assembly 10 is connected to the male interface 300 or the female interface 400 of the short side above the metal sandwich decorative panel 2 30, and the upper side of the expansion joint assembly 10 is connected to the side of the long side of the metal sandwich decorative panel 1 20 of row B; and the upper side of the expansion joint assembly 10 is connected to the male interface 300 or the female interface 400 of the short side below the metal sandwich decorative panel 2 30, and the lower side of the expansion joint assembly 10 is connected to the side of the long side of the metal sandwich decorative panel 1 20 of row B. The structures of the expansion joint assembly 10 at the above three positions are different. Therefore, in some embodiments of the present invention, one achievable structure of the expansion joint assembly 10 is that the expansion joint assembly 10 includes a side expansion joint group 100 and an upper and lower expansion joint group 200, wherein the side expansion joint group 100 is located between the adjacent sides of the metal sandwich decorative panel 1 20 and the metal sandwich decorative panel 2 30 which are connected by their long sides to form a horizontal row, that is, Figure 1 At the middle AA section, when the short side of the metal sandwich decorative panel 2 30 is located at the upper end or the lower end of the metal sandwich decorative panel, the upper end of the metal sandwich decorative panel 2 30 and the lower end of the metal sandwich decorative panel 1 20 or the lower end of the metal sandwich decorative panel 2 30 and the upper end of the metal sandwich decorative panel 1 20 are sealed and connected through the upper and lower expansion joint groups 200 10, that is, Figure 1 At the middle BB section.

[0047] In some other embodiments of the present invention, the metal curtain wall is arranged in A rows from top to bottom, and at the window position it is a vertical row of metal sandwich decorative panels 2 30 arranged continuously in sequence. In this case, the expansion joint assembly 10 is only a side expansion joint group 100.

[0048] Since the expansion joint assembly 10 provided in this embodiment can be used at interfaces of various structures of the upper, lower, left and right metal sandwich decorative panels 230, it can be determined whether all the expansion joint assemblies 10 are used, or only the side expansion joint group 100 or the upper and lower expansion joint groups 200 are used according to the actual situation of the specific arrangement structure of the metal curtain wall. Here, this embodiment does not make specific limitations.

[0049] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle, then combine Figure 2 The side expansion joint set 100 pieces 10 will be described in detail.

[0050] In some embodiments of the present invention, the side expansion joint group 100 includes a side expansion bracket 110, and the outer side of the female interface 400 of one of the metal sandwich decorative panel 1 20 and the metal sandwich decorative panel 2 30 is connected to one end of the side expansion bracket 110, and the outer side of the male interface 300 of the other is connected to the other end of the side expansion bracket 110, so as to cover the deformation gap. When a deformation difference occurs between the carrier carrying the metal sandwich decorative panel 1 20 and the carrier carrying the metal sandwich decorative panel 2 30, and the deformation difference is accommodated by the deformation gap, the length of the side expansion bracket 110 can be adjusted to change with the change of the deformation difference, thereby ensuring the sealing and reliability of the connection at the connection point.

[0051] Further, as an optional solution, the side telescopic bracket 110 is provided with a plurality of crests 111 protruding outward at intervals, and the plurality of crests 111 are evenly distributed between the male interface 300 and the female interface 400. The distance between the crests 111 at both ends of the side telescopic bracket 110 and the male interface 300 or the female interface 400 on the corresponding side is equal to the spacing between adjacent crests 111, so that the connection seam between the metal sandwich decorative panel 1 20 and the metal sandwich decorative panel 2 30 is more beautiful. Due to the setting of the crests 111, the side telescopic bracket 110 is contracted, reducing the distance between the two ends, and when a deformation difference occurs, the deformation difference can be eliminated by flattening the crests 111.

[0052] In this embodiment, the distance between the male interface 300 and the female interface 400 is 100 mm, which is enough to accommodate the deformation difference between two metal sandwich decorative panels of different materials. There are two crests 111, and the distance between the crests 111 is 20 mm. Therefore, from the appearance, there are two rows of evenly spaced vertical stripes between the metal sandwich decorative panel 1 20 and the metal sandwich decorative panel 2 30, making the joint more beautiful.

[0053] Please continue to refer to Figure 2 In order to make the surface of two adjacent metal sandwich device panels smooth after connection, the outer side of the male interface 300 is often a concave platform 310 with a height difference with the outer metal plate surface, and the outermost side of the corresponding female interface 400 is a lap platform 420 flush with the outer metal plate surface. When two adjacent metal sandwich decorative panels are overlapped together, the inner side of the lap platform 420 is in contact with the outer side of the concave platform 310, so that the outer side surfaces of the two adjacent metal sandwich decorative panels are flush, ensuring the beauty of the entire outer surface of the metal curtain wall. When the side telescopic bracket 110 is connected to the male interface 300, one end of the side telescopic bracket 110 can directly abut against the outer side surface of the male interface 300 and be fixed with bolts, and when connected to the female interface 400, in order to ensure the aesthetics of the interface, the outer side surface of the other end of the side telescopic bracket 110 abuts against the inner side surface of the overlapping platform 420, so that there is a certain distance between the wave crests 111 on both sides of the side telescopic bracket 110 and the male interface 300 or the female interface 400 on the corresponding side.

[0054] In some embodiments of the present invention, one possible connection method between the side telescopic bracket 110 and the female connector 400 may be adhesive bonding. However, in order to enhance the reliability of the connection, another possible connection method between the telescopic bracket 110 and the female connector 400 may be screwing or riveting.

[0055] For more details, please refer to Figure 2 The side expansion joint assembly 100 further includes a connecting bracket assembly 120, which abuts against the boss 410 in the center of the female interface 400 and is covered on the boss 410. The inner side of the connecting bracket assembly 120, which is away from the boss 410, abuts against the carrier, and the outer side extends out of the female interface 400 and abuts against the side expansion bracket 110. The connecting bracket assembly 120 makes the connection between the side expansion bracket 110 and the female interface 400 more stable.

[0056] For further information, please refer to Figure 2One possible structure of the connecting bracket set 120 is that the connecting bracket set 120 includes a support member 121 and a mounting member 122, wherein the end of the support member 121 facing the female interface 400 has a receiving groove 1211, and the boss 410 is received in the receiving groove 1211. The inner side of the end of the support member 121 away from the receiving groove 1211 has a mounting plate 1212, and the mounting plate 1212 is connected to the carrier by screws. The mounting piece 122 is L-shaped, with one end abutting against the end of the support piece 121 away from the accommodating groove 1211. The screw passes through the support piece 121 and the wall of the accommodating groove 1211 and is screwed on the female interface 400 to achieve a stable connection between the mounting piece 122 and the support piece 121. The other end of the support piece 121 is connected to the end of the side telescopic bracket 110. The end of the side telescopic bracket 110 is located between the other end of the mounting piece 122 and the outer wall of the female interface 400, and is connected by screws or rivets. The connection point is located at the trough position between the crest 111 at the end of the side telescopic bracket 110 and the female interface 400. The head of the screw or rivet is the same color as the side telescopic bracket 110 and is not easy to detect from the outside, thereby not only ensuring the reliability of the connection but also ensuring the beautiful appearance.

[0057] Since the spacing between the male interface 300 and the female interface 400 is 100 mm, if only the external temperature of the side telescopic bracket 110 and the internal temperature are easily exchanged between the interfaces, the thermal insulation effect of the entire metal curtain wall is poor. In order to solve this problem, in some embodiments, the connection bracket group 120 also includes thermal insulation cotton 130, and the thermal insulation cotton 130 matches the male interface 300 or the side of the support member 121 at the corresponding end at both ends of the horizontal direction away from the receiving groove 1211. The screws connecting the side telescopic bracket 110 and the mounting member 122 are passed through the side telescopic bracket 110 and the mounting member 122 and then screwed on the thermal insulation cotton 130 to achieve a fixed connection of the thermal insulation cotton 130. Of course, the connection between the thermal insulation cotton 130 and the male interface 300 and the support member 121 is provided with adhesive, so that the thermal insulation cotton 130 is fixed more firmly and the connection strength is higher.

[0058] Furthermore, in order to ensure the life of the thermal insulation cotton 130, the side telescopic bracket 110 further includes an inner telescopic bracket 140, one end of the inner telescopic bracket 140 is fixed between the inner side surface of the male interface 300 and the carrier by screws that lock the male interface 300 and the carrier, and the other end of the inner telescopic bracket 140 is fixed between the mounting plate 1212 and the carrier by screws that lock the support member 121 and the carrier. The center of the inner telescopic bracket 140 has a raised crest 111 to cover the deformation gap on the inner side of the deformation gap to protect the thermal insulation cotton 130, and change with the change of the deformation difference.

[0059] Figure 3 for Figure 1The cross-sectional structure diagram at BB in the figure. Figure 3 The upper and lower expansion joint groups 200 will be described in detail.

[0060] In some embodiments of the present invention, a structure that can be realized of the upper and lower expansion joint groups 200 pieces 10 is that the upper and lower expansion joint groups 200 pieces 10 include a leveling telescopic bracket 1 210 and a leveling telescopic bracket 220, please refer to Figure 3 One end of the leveling telescopic bracket 210 is connected to the root of the outer side of the male interface 300, and the other end is located between the metal sandwich decorative panel 2 30 and the carrier. The end of the leveling telescopic bracket 210 connected to the male interface 300 has a protrusion 211 protruding outward that is flush with the outer side of the metal sandwich decorative panel 20, and the part where the protrusion 211 is connected to the other end of the leveling telescopic bracket abuts against the end of the male interface 300. There is a certain distance between the protrusion 211 and the side edges of the two adjacent metal sandwich decorative panels in the longitudinal direction. As an optional solution, the distance is 20mm. The protrusion 211 is located in the center, so that in terms of appearance, the protrusion 211 is a horizontal bar in the center of the two adjacent metal sandwich decorative panels, making the appearance more beautiful. When there is a displacement difference between carriers of different materials, the protrusion 211 can be expanded to eliminate the difference. Please refer to Figure 3 The second leveling telescopic bracket 220 is connected to the carrier and blocked at the plug interface of the female interface 400. The second leveling telescopic bracket 220 is flush with the end of the female interface 400. The second leveling telescopic bracket 220 is parallel to the upper side of the metal sandwich decorative panel 1 20 and has a spacing of 20mm. When there is a displacement difference between carriers of different materials, it can be eliminated by this spacing. The structure is simple and the cost is low.

[0061] In order to ensure the stability of the connection between the leveling telescopic bracket 1 210 and the lower side of the metal sandwich decorative panel 1 20 located above, and the leveling telescopic bracket 2 220 and the upper side of the metal sandwich decorative panel 2 30 located below, as an optional solution, there are sealing connectors 230 between the leveling telescopic bracket 1 210 and the side of the metal sandwich decorative panel 1 20, and between the leveling telescopic bracket 2 220 and the side of the metal sandwich decorative panel 1 20, and the outer side of the sealing connector 230 is located inside the outer side of the metal sandwich decorative panel, so that in appearance, there is a 20mm gap between the metal sandwich decorative panel 2 30 located above and the metal sandwich decorative panel 1 20 located below. As an optional solution, the sealing connector 230 is an EPDM rubber strip, which not only has good connectivity, but also can effectively prevent water and ensure the sealing of the metal curtain wall.

[0062] By setting the inner concave seam at the boundary between the metal sandwich decorative panel 1 20 and the metal sandwich decorative panel 2 30 to 20 mm, the size of the concave seam of the entire metal curtain wall is consistent, and there is no exposed interface of the metal sandwich decorative panel, thereby improving the aesthetics of the entire metal curtain wall.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An expansion joint assembly, characterized in that: Located at the junction of adjacent metal sandwich decorative panel 1 (20) and metal sandwich decorative panel 2 (30), and respectively matched with the interface of the corresponding side to achieve a sealed connection, the material of the carrier carrying the metal sandwich decorative panel 1 (20) and the carrier carrying the metal sandwich decorative panel 2 (30) are different, and there is a deformation gap between the different carriers, the expansion joint assembly covers the deformation gap, and can deform following the deformation difference between the different carriers; The expansion joint assembly comprises: A side expansion joint group (100) is located between the first metal sandwich decorative panel (20) and the second metal sandwich decorative panel (30) which are connected by long sides to form a horizontal row; An upper and lower expansion joint group (200), wherein the short side of the second metal sandwich decorative panel (30) is located at the upper end or the lower end of the second metal sandwich decorative panel (30), and the upper end of the second metal sandwich decorative panel (30) and the lower end of the first metal sandwich decorative panel (20) or the lower end of the second metal sandwich decorative panel (30) and the upper end of the first metal sandwich decorative panel (20) are sealed and connected via the upper and lower expansion joint group (200).

2. The expansion joint assembly according to claim 1, characterized in that: The side expansion joint assembly (100) comprises: A side telescopic bracket (110), wherein the outer side of the female interface (400) of one of the metal sandwich decorative panel 1 (20) and the metal sandwich decorative panel 2 (30) is connected to one end of the side telescopic bracket (110), and the outer side of the male interface (300) of the other is connected to the other end of the side telescopic bracket (110), and the length of the side telescopic bracket (110) is adjustable.

3. The expansion joint assembly according to claim 2, characterized in that: The side telescopic bracket (110) is provided with a plurality of wave crests (111) protruding outward at intervals, and the plurality of wave crests (111) are evenly distributed between the male interface (300) and the female interface (400).

4. The expansion joint assembly according to claim 2, characterized in that: The distance between the male interface (300) and the female interface (400) is 100 mm.

5. The expansion joint assembly according to claim 2, characterized in that: The side expansion joint assembly (100) further comprises: The connecting bracket group (120) is in contact with the boss (410) at the center of the female head interface (400) and is covered on the boss (410); the inner side of the connecting bracket group (120) facing away from the boss (410) is in contact with the carrier, and the outer side extends out of the female head interface (400) and is in contact with the side telescopic bracket (110).

6. The expansion joint assembly according to claim 5, characterized in that: The connecting bracket set (120) comprises: A support member (121), having a receiving groove (1211) at one end facing the female interface (400), the boss (410) being received in the receiving groove (1211), and having a mounting plate (1212) at the inner side of one end of the support member (121) facing away from the receiving groove (1211), the mounting plate (1212) being connected to the carrier; and The mounting member (122) is L-shaped, one end of which abuts against an end of the support member (121) away from the receiving groove (1211), and the other end is connected to the end of the side telescopic bracket (110), and the end of the side telescopic bracket (110) is located between the other end of the mounting member (122) and the outer side wall of the female connector (400).

7. The expansion joint assembly according to claim 2, characterized in that: The side expansion joint assembly (100) further comprises: The heat-insulating cotton (130) has one end connected to the female interface (400) and the other end matched and abutted with the male interface (300).

8. The expansion joint assembly according to any one of claims 5 to 7, characterized in that: The upper and lower expansion joint groups (200) include: A first leveling telescopic bracket (210), one end of which is connected to the root of the outer side of the male interface (300), and the other end of which is located between the second metal sandwich decorative panel (30) and the carrier, the end of the first leveling telescopic bracket (210) connected to the male interface (300) protruding outwardly with a boss (410) flush with the outer side of the first metal sandwich decorative panel (20), and the portion of the boss (410) connected to the other end of the leveling telescopic bracket abutting against the end of the male interface (300); and The second leveling telescopic bracket (220) is connected to the carrier and is sealed at the plug interface of the female interface (400). The second leveling telescopic bracket (220) is flush with the end of the female interface (400).

9. The expansion joint assembly according to claim 8, characterized in that: There are sealing connectors (230) between the first leveling telescopic bracket (210) and the side edge of the first metal sandwich decorative panel (20), and between the second leveling telescopic bracket (220) and the side edge of the first metal sandwich decorative panel (20).

10. A curtain wall, characterized in that: include: A plurality of metal sandwich decorative panels one (20) arranged in sequence, a plurality of metal sandwich decorative panels two (30) arranged in sequence, and expansion joint components respectively sealed and connected to the metal sandwich decorative panels one (20) and the metal sandwich decorative panels two (30); The materials of the carriers carrying the first metal sandwich decorative panel (20) and the second metal sandwich decorative panel (30) are different, and there is a deformation gap between the different carriers, and the expansion joint assembly covers the deformation gap; The expansion joint assembly is the expansion joint assembly according to any one of claims 1 to 9.

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