Seamless box - type four - sided tongue - and - groove metal curtain wall sandwich panel

Abstract

An embodiment of the present invention discloses a seamless box - type four - sided tongue - and - groove metal curtain wall sandwich panel, which comprises a thermal insulation core board, a first panel and a second panel, a first frame profile and a second frame profile; the first panel and the second panel are respectively arranged on the front and back sides of the thermal insulation core board; the first frame profile and the second frame profile are respectively arranged on a pair of opposite side edges of the thermal insulation core board, the first frame profile has a connecting protrusion, the second frame profile has a connecting groove for accommodating the connecting protrusion, and both ends of the first panel and the second panel are connected to the first frame profile and the second frame profile. The seamless box - type four - sided tongue - and - groove metal curtain wall sandwich panel provided by the embodiment of the present invention can exempt the front and rear panels of the thermal insulation core board from cutting, avoid leaving process cutting seams, not only improve the service life of the product, but also improve the performance of the panel such as airtightness and heat preservation performance.

Description

Technical Field

[0001] The present invention belongs to the technical field of building materials, and particularly relates to a seamless box - type four - sided tongue - and - groove metal curtain wall sandwich panel. Background Art

[0002] In industrial buildings, metal curtain wall sandwich panels are widely used. The method is that there is a thermal insulation core material between two layers of metal profiled sheets. The metal sheets are usually bent and profiled on two opposite sides in the long direction to form a plug - in tenon - and - mortise structure. There are exposed cutting sections on two opposite sides in the short direction, which need to be covered during later construction. This is called a two - tongue - and - groove panel in the industry. On this basis, the short sides of the two - tongue - and - groove panel are secondarily cut for the local vertical seams of the inner steel plate and the outer steel plate, and then secondarily bent so that the outer steel plate forms a box shape. The cutting seams at the four corners of the box shape are filled with measures such as metal putty and sealant. This is called a four - tongue - and - groove panel in the industry.

[0003] At present, whether it is a two - tongue - and - groove panel or a four - tongue - and - groove panel, it is necessary to fold the edges through a cutting plane and leave a process cutting seam, which affects the service life of the product under certain conditions and will also have an adverse impact on the performance such as the sealing and heat insulation of the product. Summary of the Invention

[0004] To solve at least one technical problem existing in the prior art, an embodiment of the present invention provides a seamless box - type four - sided tongue - and - groove metal curtain wall sandwich panel.

[0005] An embodiment of the present invention provides a seamless box - type four - sided tongue - and - groove metal curtain wall sandwich panel, which includes:

[0006] A thermal insulation core material board;

[0007] A first panel and a second panel, respectively arranged on the front and back sides of the thermal insulation core material board;

[0008] A first frame profile and a second frame profile, respectively arranged on a pair of opposite side edges of the thermal insulation core material board. The first frame profile has a connecting protrusion, and the second frame profile has a connecting groove for accommodating the connecting protrusion. Both ends of the first panel and the second panel are connected to the first frame profile and the second frame profile.

[0009] Further, the connecting protrusion includes a connecting portion and a transition portion. One end of the transition portion is arranged on the side edge of the thermal insulation core material board, and the other end is connected to the connecting portion. There is a sunken portion between the outer edge of the connecting portion and the outer edge of the transition portion.

[0010] Further, the connecting groove includes a first protruding portion and a second protruding portion located on both sides of the groove. The first protruding portion is used to sink into the sunken portion. The connecting portion sinks into the groove of the connecting groove, and the second protruding portion is arranged opposite to the transition portion.

[0011] Further, a foaming adhesive is provided on a side of the connecting portion facing away from the heat-insulating core material board.

[0012] Further, a first connecting seam is provided on a side of the second protruding portion facing away from the transition portion, and a T-shaped aluminum profile is provided in the first connecting seam.

[0013] Further, an EPDM rubber strip is provided between the first connecting seam and the T-shaped aluminum profile.

[0014] Further, a second connecting seam is provided on a side of the second protruding portion facing away from the heat-insulating core material board, and an EPDM rubber strip is provided in the second connecting seam.

[0015] Further, when the connecting portion sinks into the groove of the connecting groove, the EPDM rubber strip contacts the transition portion.

[0016] Further, the first panel is a steel plate, and both ends of the steel plate wrap and connect the sinking portion and the first protruding portion respectively.

[0017] Further, the second panel is a steel plate, and both ends of the steel plate partially wrap and connect the transition portion and the second protruding portion respectively.

[0018] Further, a sealant is provided in the wrapping joint between the first frame profile and the second frame profile and the two end portions of the steel plate.

[0019] Further, the first frame profile and the second frame profile are respectively provided on the other two opposite side edges of the heat-insulating core material board.

[0020] The seamless cut box-type four-sided tongue-and-groove metal curtain wall sandwich panel provided by the embodiment of the present invention, by arranging the first panel and the second panel on the front and back surfaces of the heat-insulating core material board, and respectively arranging the first frame profile and the second frame profile on two opposite side edges of the heat-insulating core material board, both ends of the first panel and the second panel are connected to the first frame profile and the second frame profile. The first frame profile has a connecting protrusion, and the second frame profile has a connecting groove for accommodating the connecting protrusion, so that the front and back panels of the heat-insulating core material board are free from cutting, avoiding leaving process cut seams, not only improving the service life of the product, but also improving the performance such as the sealing property and heat preservation property of the board. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0022] Figure 1 A schematic cross-sectional structure diagram of a seamless box-type four-sided rabbeted metal curtain wall sandwich panel provided by an embodiment of the present invention;

[0023] Figure 2 A schematic longitudinal cross-sectional structure diagram when the seamless box-type four-sided rabbeted metal curtain wall sandwich panels provided by the embodiments of the present invention are connected up and down;

[0024] Figure 3 Another schematic cross-sectional structure diagram of a seamless box-type four-sided rabbeted metal curtain wall sandwich panel provided by an embodiment of the present invention;

[0025] Figure 4 A schematic transverse cross-sectional structure diagram when the seamless box-type four-sided rabbeted metal curtain wall sandwich panels provided by the embodiments of the present invention are connected left and right. Detailed implementation manners

[0026] The following will describe in detail the implementation manners of the present invention in conjunction with the drawings and embodiments, so that the implementation process of how the present invention uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0027] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinction. As mentioned throughout the specification and claims, "comprising" is an open-ended term, so it should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve the technical problems within a certain error range and basically achieve the technical effects. In addition, the term "coupled" or "electrically connected" herein includes any direct and indirect electrical coupling means. Therefore, if a first device is described as being coupled to a second device in the text, it means that the first device can be directly electrically coupled to the second device, or indirectly electrically coupled to the second device through other devices or coupling means. The following description is the preferred implementation manner for implementing the present invention, but the description is for the purpose of explaining the general principles of the present invention and is not intended to limit the scope of the present invention. The protection scope of the present invention shall be subject to what is defined by the appended claims.

[0028] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or system comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or system. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or system comprising said element. Specific embodiments

[0030] Please refer to Figure 1 , which is a schematic cross-sectional structure diagram of a seamless box-type four-sided tongue-and-groove metal curtain wall sandwich panel provided by an embodiment of the present invention. The seamless box-type four-sided tongue-and-groove metal curtain wall sandwich panel (hereinafter referred to as the curtain wall panel) includes a thermal insulation core board 10, a first panel 210, a second panel 220, a first frame profile 310 and a second frame profile 320. Among them, the first panel 210 and the second panel 220 are respectively arranged on the front and back sides of the thermal insulation core board 10; the first frame profile 310 and the second frame profile 320 are respectively arranged on a pair of opposite side edges of the thermal insulation core board 10. The first frame profile 310 has a connecting protrusion 311, and the second frame profile 320 has a connecting groove 321 for accommodating the connecting protrusion 311. Both ends of the first panel 210 and the second panel 220 are connected to the first frame profile 310 and the second frame profile 320.

[0031] Specifically, the thermal insulation core board 10 includes, but is not limited to, any one of polystyrene foam plastic, mineral wool (rock wool), polystyrene granule material, polyurethane material, etc. The shape of the thermal insulation core board 10 is generally a rectangular or square structure. On a pair of opposite side edges of the thermal insulation core board 10, denoted here as the first side edge 110 and the second side edge 120, the first frame profile 310 is arranged on the first side edge 110, and the second frame profile 320 is arranged on the second side edge 120. The connecting protrusion 311 is arranged on the first frame profile 310 in a direction away from the center of the thermal insulation core board 10, and the connecting groove 321 is arranged on the second frame profile 320 in a direction away from the center of the thermal insulation core board 10. Please refer to Figure 2, when two of the curtain wall panels are connected along the panel surface direction, the first side edge 110 of one curtain wall panel is connected to the second side edge 120 of the other curtain wall panel, and the connecting protrusion 311 sinks into the connecting groove 321, so that the two curtain wall panels are butt-jointed. In addition, both ends of the first panel 210 are respectively connected to the first frame profile 310 and the second frame profile 320, while the second panel 220 is located on the side of the heat preservation core board 10 away from the first panel 210, and both ends of the second panel are respectively connected to the first frame profile 310 and the second frame profile 320. In this way, the heat preservation core board 10 is surrounded by the first frame profile 310, the second frame profile 320, the first panel 210 and the second panel 220 to form a relatively enclosed box structure, and measures such as using metal putty and sealant to fill the cutting seam are avoided, so that the sealing performance and heat preservation performance of the curtain wall panel can be effectively improved, and to a certain extent, the service life of the curtain wall panel can also be improved.

[0032] Further, the first frame profile 310 and the second frame profile 320 are respectively provided on the other two opposite side edges of the heat preservation core board 10.

[0033] Here, in the above embodiments, the case where the first frame profile 310 and the second frame profile 320 are provided on a pair of side edges of the heat preservation core board 10 is introduced. Next, the case where the first frame profile 310 and the second frame profile 320 are provided on the other pair of side edges of the heat preservation core board 10 is introduced.

[0034] Specifically, please refer to Figure 3 and Figure 4 . In other preferred embodiments of the present invention, on the other two opposite side edges of the heat preservation core board 10, denoted here as the third side edge 130 and the fourth side edge 140, the first frame profile 310 is provided on the side of the third side edge 130 away from the heat preservation core board 10, and the second frame profile 320 is provided on the side of the fourth side edge 140 away from the heat preservation core board 10. The first frame profile 310 and the second frame profile 320 here have the same structure and connection method as the first frame profile 310 and the second frame profile 320 in the above embodiments, and reference can be made to the description of the above embodiments, which will not be elaborated here.

[0035] With such a design, by providing the first frame profile 310 and the second frame profile 320 on two opposite side edges of the heat-insulating core material board 10, when one curtain wall board is connected to other curtain wall boards, docking is achieved through the connecting protrusion 311 and the connecting groove 321, so that there is no need to cut around the curtain wall board, and no cutting seam needs to be left, forming a box-shaped structure with tongue-and-groove joints on all four sides, further improving the sealing performance, heat-insulating performance and other properties of the curtain wall board, and also improving the service life of the curtain wall board to a certain extent.

[0036] Furthermore, the connecting protrusion 311 includes a connecting portion 3111 and a transition portion 3112. One end of the transition portion 3112 is provided on the side edge of the heat-insulating core material board 10, and the other end is connected to the connecting portion 3111. And there is a sunken portion 3113 between the outer edge of the connecting portion 3111 and the outer edge of the transition portion 3112.

[0037] Specifically, the transition portion 3112 includes but is not limited to an L-shaped structure. One side is attached to the first side edge 110 of the heat-insulating core material board 10, and the other side extends away from the heat-insulating core material board 10, and the connecting portion 3111 is connected to the end of this side. That is, the connecting portion 3111 is provided at the end of the end of the transition portion 3112 facing away from the heat-insulating core material board 10. Structurally, the connecting portion 3111 and the transition portion 3112 are not extensions of the same size, but there is the sunken portion 3113 between the outer edge of the connecting portion 3111, that is, in the direction of the thickness of the curtain wall board, and the outer edge of the transition portion 3112, that is, the edge of the transition portion 3112 facing away from the heat-insulating core material board 10. Specific usage and corresponding technical effects of the sunken portion 3113 will be given in the following embodiments.

[0038] In addition, the connecting groove 321 includes a first protruding portion 3211 and a second protruding portion 3212 located on both sides of the groove. The first protruding portion 3211 is used to sink into the sunken portion 3113, the connecting portion 3111 sinks into the groove of the connecting groove 321, and the second protruding portion 3212 is arranged opposite to the transition portion 3112.

[0039] Specifically, the connecting groove 321 is provided on the second side edge 120 of the heat-insulating core board 10. When two curtain wall boards are connected to each other, the connecting groove 321 is opposite to the connecting protrusion 311. The connecting groove 321 is formed by the first protruding portion 3211 and the second protruding portion 3212 being arranged at an interval. Among them, the first protruding portion 3211 is flush with the plate surface of the curtain wall board. When two curtain wall boards are connected to each other, the connecting protrusion 311 of one curtain wall board is used to sink into the connecting groove of the other curtain wall board, and the connecting portion 3111 is used to sink into the groove of the connecting groove 321. At this time, the second protruding portion 3212 and the transition portion 3112 are arranged opposite to each other, and there may be a distance between the two, or they may be in contact with each other.

[0040] During use, fasteners such as self-tapping screws pass through one side of the L-shaped transition portion 3112 close to the connecting portion, and one end of the curtain wall board is fixed to a structure such as a wall purlin. Then, the connecting groove 321 of another curtain wall board is butted against the fixed end of the above-mentioned curtain wall board. Specifically, the first protruding portion 3211 is used to sink into the sinking portion 3113, and the connecting portion 3111 sinks into the groove of the connecting groove 321. At this time, the second protruding portion 3212 and one side of the L-shaped transition portion 3112 close to the heat-insulating profile board 10 are arranged opposite to each other, and there is a distance between the second protruding portion 3212 and one side of the L-shaped transition portion 3112 close to the connecting portion 3111. This distance can be used to accommodate the end heads of fasteners such as self-tapping screws.

[0041] Furthermore, in order to improve the sealing performance between the connecting portion 3111 and the groove of the connecting groove 321 when two curtain wall boards are connected to each other, foaming glue 41 is provided on the side of the connecting portion 3111 facing away from the heat-insulating core board 10.

[0042] Specifically, the foaming glue 41 is provided on the outer edge of the connecting portion 3111 facing away from the heat-insulating core board 10. When the connecting portion 3111 sinks into the groove of the connecting groove 321, the foaming glue 41 can make the connection between the connecting groove 321 and the connecting protrusion 311 more dense, improve the sealing performance at the joint of the two curtain wall boards, and further improve the heat-insulating performance of the building wall board.

[0043] In addition, in other preferred embodiments of the present invention, a first connecting seam 51 is provided on the side of the second protruding portion 3212 facing away from the transition portion 3112, and a T-shaped aluminum profile 52 is provided in the first connecting seam 51.

[0044] Specifically, a first connection seam 51 is provided on a surface of the second protruding portion 3212 facing away from the side of the L-shaped transition portion 3112 close to the connection portion 3111. A T-shaped aluminum profile 52 is disposed within the first connection seam 51. The T-shaped aluminum profile 52 is used to fill the seam when two curtain wall panels are butted, making the seam look more beautiful and having a certain effect of improving the sealing performance.

[0045] Furthermore, in order to further improve the sealing performance of the seam when two curtain wall panels are butted, an EPDM rubber strip 42 is provided between the first connection seam 51 and the T-shaped aluminum profile 52.

[0046] Specifically, the vertical side of the T-shaped aluminum profile 52 is inserted into the first connection seam 51. However, in order to improve the sealing performance between the T-shaped aluminum profile 52 and the first connection seam 51, the EPDM rubber strip 42 is provided therebetween. The EPDM rubber strip 42 here has a shape similar to that of the T-shaped aluminum profile 52 and is also in a T-shaped structure. The horizontal section of the T-shaped structure is longer than the horizontal section of the T-shaped aluminum profile 52, so that both ends of the EPDM rubber strip 42 are in contact with the ends of the two curtain wall panels respectively, thereby improving the sealing performance of the seam when the two curtain wall panels are butted and further improving the overall aesthetics and sealing performance of the building curtain wall.

[0047] In addition, in other preferred embodiments of the present invention, a second connection seam 53 is provided on a surface of the second protruding portion 3212 facing away from the heat preservation core board 10, and an EPDM rubber strip 42 is disposed within the second connection seam 53.

[0048] Specifically, at the end of the second protruding portion 3212, that is, at the end facing another curtain wall panel, the second connection seam 53 is provided, and the EPDM rubber strip 42 is disposed within the second connection seam 53. The EPDM rubber strip 42 here faces the end of another curtain wall panel. Among them, the shape of the EPDM rubber strip 42 gradually decreases in the direction of the connection groove 321 accommodating the connection protrusion 311. Such a design can further improve the sealing performance when the connection groove 321 and the connection protrusion 311 are connected.

[0049] Furthermore, when the connection portion 3111 sinks into the groove of the connection groove 321, the EPDM rubber strip 42 contacts the transition portion 3112.

[0050] Specifically, when two of the curtain wall panels are connected to each other, the connecting portion 3111 sinks into the groove of the connecting groove 321. At this time, the second protruding portion 3212 faces the L-shaped transition portion 3112 and approaches the side of the heat preservation core material board 10, and the EPDM rubber strip 42 at its end contacts this side of the transition portion 3112, so as to hide fasteners such as self-tapping screws for fastening the curtain wall panel in the closed space formed by the second protruding portion 3212 and the transition portion 3112, avoiding its contact with the outside world, improving the connection performance of the fasteners, and further improving the service performance of the curtain wall panel.

[0051] In addition, the situation of the upper and lower connection of the curtain wall panel is introduced in the above embodiments. It is mainly fixed by fasteners such as self-tapping screws at one end, and is connected through the connecting groove 321 and the connecting protrusion 311 at the upper and lower ends of the board; when the curtain wall panel needs to be expanded left and right, similar to the above-introduced upper and lower connection, it is also connected through the connecting groove 321 and the connecting protrusion 311 provided on the opposite sides of the other side of the heat preservation core material board 10, and is fixed by fasteners such as self-tapping screws on the transition portion 3112 of the connecting protrusion 311.

[0052] Further, the first panel 210 is a steel plate, and both ends of the steel plate wrap the sinking portion 3113 and the first protruding portion 3211 respectively.

[0053] Specifically, the steel plate forms bent portions at both ends through processes such as pressing, and the bent portions at both ends wrap the outside of the sinking portion 3113 and the first protruding portion 3211 respectively.

[0054] In addition, the second panel 220 is a steel plate, and both ends of the steel plate partially wrap the transition portion 3112 and the second protruding portion 3212 respectively.

[0055] Specifically, this steel plate also forms bent portions at both ends through processes such as pressing, and the bent portions at both ends wrap the outside of the transition portion 3112 and the second protruding portion 3212 respectively.

[0056] Here, the steel plate has good strength, and the front and back surfaces of the heat preservation core material board 10 are wrapped by the steel plate, and the side edges of the heat preservation core material board 10 are closed by the first frame profile 310 and the second frame profile 320, placing the heat preservation core material board 10 in a relatively closed space to protect the heat preservation core material board 10, improve the service life of the heat preservation core material board 10, and further improve the service life of the curtain wall. At the same time, the strength of the curtain wall panel can be further improved, and the service life and service performance of the curtain wall panel can be improved.

[0057] Furthermore, sealant is provided in the wrapping joints between the first frame profile 310 and the second frame profile 320 and the two ends of the steel plate.

[0058] Specifically, the bent portions of the two ends of the steel plate are respectively partially wrapped around the outer sides of the first frame profile 310 and the second frame profile 320, that is, the first frame profile 310 and the second frame profile 320 are respectively connected to the steel plate. The specific connection method is a wrapping form, and sealant is provided in the wrapping joints, that is, on the outer sides of the places where the first frame profile 310 and the second frame profile 320 are connected to the steel plate, or the sealant is provided on the inner side of the steel plate. Through the setting of the sealant, the connection firmness between the steel plate and the first frame profile 310 and the second frame profile 320 can be effectively improved. Furthermore, the heat preservation core board 10 can be fixed in a relatively airtight space, improving the heat preservation performance of the heat preservation core board 10, and also improving the integrity of the curtain wall board, as well as the service performance and service life of the curtain wall board.

[0059] In addition, sealant is provided on the outer side of the end of the second panel 220. That is, when two curtain wall boards are butted, sealant is provided on both sides of the joint, making the connection between the two ends of the EPDM rubber strip 42 and the second panels 220 on both sides more dense, so as to improve the sealing performance when the two curtain wall boards are butted, thereby further improving the service performance and service life of the curtain wall board.

[0060] It should be noted that although the specific embodiments of the present invention have been described in detail with reference to the accompanying drawings, it should not be construed as a limitation of the protection scope of the present invention. Without structural conflict, the structures of the various parts mentioned in the above embodiments can be combined with each other. To avoid repetition, the technical solutions obtained after combination will not be described here again, but the technical solutions obtained after combination should also fall within the protection scope of the present invention. Within the scope described in the claims, various modifications and deformations that can be made by those skilled in the art without creative labor still fall within the protection scope of the present invention.

[0061] The examples of the embodiments of the present invention are intended to briefly illustrate the technical features of the embodiments of the present invention, so that those skilled in the art can intuitively understand the technical features of the embodiments of the present invention, and do not serve as an improper limitation of the embodiments of the present invention.

[0062] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative labor.

[0063] The above description shows and describes several preferred embodiments of the embodiments of the present invention. However, as mentioned above, it should be understood that the embodiments of the present invention are not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in related fields. And the changes and alterations made by those skilled in the art that do not depart from the spirit and scope of the embodiments of the present invention shall fall within the protection scope of the appended claims of the embodiments of the present invention.

Claims

1. A seamless box - type four - sided tongue - and - groove metal curtain wall sandwich panel, characterized in that, Comprising: Thermal insulation core material board; A first panel and a second panel, respectively disposed on the front and back sides of the thermal insulation core material board; A first frame profile and a second frame profile, respectively disposed on one pair of opposite sides of the thermal insulation core material board. The first frame profile has a connecting protrusion, and the second frame profile has a connecting groove for accommodating the connecting protrusion. Both ends of the first panel and the second panel are connected to the first frame profile and the second frame profile; The connecting protrusion includes a connecting portion and a transition portion. One end of the transition portion is disposed on the side of the thermal insulation core material board, and the other end is connected to the connecting portion. And there is a sunken portion between the outer edge of the connecting portion and the outer edge of the transition portion; The connecting groove includes a first protruding portion and a second protruding portion located on both sides of the groove. The first protruding portion is used to sink into the sunken portion. The connecting portion sinks into the groove of the connecting groove. The second protruding portion is disposed opposite to the transition portion. A foaming adhesive is provided on the surface of the connecting portion facing away from the thermal insulation core material board; 2. The seamless box - type four - sided tongue - and - groove metal curtain wall sandwich panel according to claim 1, characterized in that, A first connecting seam is provided on the surface of the second protruding portion facing away from the transition portion, and a T-shaped aluminum profile is provided in the first connecting seam; 3. The seamless box - type four - sided tongue - and - groove metal curtain wall sandwich panel according to claim 2, wherein An EPDM rubber strip is provided between the first connecting seam and the T-shaped aluminum profile; 4. The seamless box - type four - sided rabbeted metal curtain wall sandwich panel according to claim 1, characterized in that, A second connecting seam is provided on the surface of the second protruding portion facing away from the thermal insulation core material board, and an EPDM rubber strip is provided in the second connecting seam; 5. The seamless box - type four - sided tongue - and - groove metal curtain wall sandwich panel according to claim 4, characterized in that, When the connecting portion sinks into the groove of the connecting groove, the EPDM rubber strip contacts the transition portion; 6. The seamless box-type four-sided rabbeted metal curtain wall sandwich panel according to claim 1, wherein The first panel is a steel plate, and both ends of the steel plate respectively wrap the sunken portion and the first protruding portion; 7. The seamless box - type four - sided tongue - and - groove metal curtain wall sandwich panel according to claim 1, characterized in that, The second panel is a steel plate, and both ends of the steel plate respectively partially wrap the transition portion and the second protruding portion; 8. The seamless box-type four-sided tongue-and-groove metal curtain wall sandwich panel according to claim 6 or 7, characterized in that A sealant is provided in the wrapping joint between the first frame profile and the second frame profile and the two end portions of the steel plate; 9. The slotted box - type four - sided tenon - jointed metal curtain wall sandwich panel according to claim 1, wherein, The first frame profile and the second frame profile are respectively provided on the other pair of opposite sides of the thermal insulation core material board.

Images