Multi-curved metal plate curtain wall installation system and method

Abstract

The present invention provides a multi-curved metal plate curtain wall installation system, comprising: a main keel, a support assembly, a secondary keel, a hoop assembly and a U-shaped buckle assembly; the support assembly is fixed on the main keel; the secondary keel is a round tube, fixed on the support assembly; the hoop assembly comprises a male buckle, a female buckle, a hoop bolt and a hoop nut. The advantage is that the secondary keel adopts a round tube instead of a square tube to achieve spatial distortion, and the adapter adopts an adjustable hoop form, which can be adjusted front and back, left and right and 360° to ensure the installation accuracy of panels at different angles, and can better solve the problem that the conventional production and fixing methods cannot meet the existing complex shapes during the installation of the multi-curved curtain wall, and the turning angle and flatness of the aluminum veneer are better controlled by the multi-curved aluminum veneer, thereby well ensuring the installation accuracy and appearance quality of the special-shaped aluminum veneer curtain wall.

Description

Technical Field

[0001] The invention relates to a multi-curved metal plate curtain wall installation system and method. Background Art

[0002] In recent years, as the shape of domestic buildings has become more and more complex, the aluminum veneers used in conventional building curtain walls are flat plates, which are fixed to the primary and secondary keels through angle codes. The main keel is connected to the embedded parts through adapters. The conventional flat aluminum veneers have a single shape. After the keel is completed, the panel adjustment margin is small, and the flat aluminum veneer cannot guarantee a smooth transition in the special-shaped curtain wall, and cannot meet the needs of complex building shapes. Summary of the invention

[0003] The present invention provides a multi-curved metal plate curtain wall installation system, in which a circular tube is used for a secondary keel instead of a square tube to achieve spatial distortion, and an adapter is in the form of an adjustable clamp, which can be adjusted front, back, left, right and 360 degrees to ensure the installation accuracy of panels at different angles, and can better solve the problem that conventional production and fixing methods cannot meet the existing complex shapes during the installation of multi-curved curtain walls. The turning angle and flatness of the aluminum veneer are better controlled by the multi-curved aluminum veneer, thereby well ensuring the installation accuracy and appearance quality of the special-shaped aluminum veneer curtain wall, thereby overcoming the defects of the prior art.

[0004] The present invention provides a multi-curved metal plate curtain wall installation system, comprising: a main keel 100, a support assembly, a secondary keel 300, a hoop assembly 400 and a U-shaped buckle assembly 500; the support assembly is fixed on the main keel 100; the secondary keel 300 is a round tube and is fixed on the support assembly; the hoop assembly 400 comprises a male buckle 410, a female buckle 420, a hoop bolt 430 and a hoop nut 440; the male buckle 410 and the female buckle 420 are encircled on the secondary keel 300; one side of the male buckle 410 and the female buckle 420 are buckled; the threaded end of the hoop bolt 430 penetrates through the male buckle 410 and the female buckle 420 After the other side, it meshes with the clamp nut 440; the male buckle 410 has a male buckle step groove 411, and the female buckle 420 has a female buckle step groove 421; the male buckle step groove 411 and the female buckle step groove 421 are respectively located on both sides of the clamp assembly 400; the size of the inner groove of the male buckle step groove 411 matches the size of the bolt head of the male buckle bolt 520, and the size of the open groove of the male buckle step groove 411 matches the size of the threaded end of the male buckle bolt 520; the size of the inner groove of the female buckle step groove 421 matches the size of the bolt head of the female buckle bolt 550, and the size of the open groove of the female buckle step groove 421 matches the size of the threaded end of the female buckle bolt 55 0; the U-shaped buckle assembly 500 includes a U-shaped buckle 510, a male buckle bolt 520, a male buckle nut 530, a female buckle bolt 550 and a female buckle nut 560; the U-shaped buckle 510 includes two side plates 511 and a connecting plate 512; the two ends of the connecting plate 512 are respectively connected to one end of the two side plates 511; the two side plates 511 are provided with long slots 511a; the direction of the long slots 511a is perpendicular to the direction of the male buckle step groove 411 and the female buckle step groove 421; the threaded end of the male buckle bolt 520 passes through the long slot 511a of one side plate 511, The threaded end of the box bolt 550 passes through the long hole groove 511a of the other side plate 511; the U-shaped buckle 510 is sleeved on the clamp assembly 400, that is, the inner side of one side plate 511 is attached to the outer side of the male buckle 410, and the inner side of the other side plate 511 is attached to the outer side of the female buckle 420, the bolt head of the male buckle bolt 520 is embedded in the male buckle step groove 411, and the bolt head of the female buckle bolt 550 is embedded in the female buckle step groove 421; the male buckle nut 530 is engaged with the male buckle bolt 520 on the outer side of one side plate 511; the female buckle nut 560 is engaged with the female buckle bolt 550 on the outer side of the other side plate 511.

[0005] Furthermore, the present invention provides a multi-curved metal plate curtain wall installation system, which may also have the following characteristics: the support assembly includes a connecting rod 210, a connecting plate 220, at least one support bolt 230, and at least one support nut 240; the number of support bolts 230 and support nuts 240 is the same and corresponds one to one; one end of the connecting rod 210 is fixed to the main keel 100, and the other end is fixed to the connecting plate 220; the threaded end of the support bolt 230 passes through the connecting plate 220, and then transversely penetrates the secondary keel 300, and then engages with the corresponding support nut 240.

[0006] Furthermore, the present invention provides a multi-curved metal plate curtain wall installation system, which may also have the following characteristics: the support assembly further includes at least one first arc-shaped fixing gasket 250 and at least one second arc-shaped fixing gasket 260; the number of the two is the same as the number of the support bolts 230, and they correspond one to one; one side of the first arc-shaped fixing gasket 250 and the second arc-shaped fixing gasket 260 is an arc-shaped surface, which matches the shape of the secondary keel 300; the first arc-shaped fixing gasket 250 and the second arc-shaped fixing gasket 260 are The other side is a plane; the first arc-shaped fixing gasket 250 is arranged between the secondary keel 300 and the connecting plate 220, the plane of the first arc-shaped fixing gasket 250 is in contact with the connecting plate 220, and the arc-shaped surface of the first arc-shaped fixing gasket 250 is in contact with the secondary keel 300; the second arc-shaped fixing gasket 260 is arranged between the secondary keel 300 and the support nut 240, and the arc-shaped surface of the second arc-shaped fixing gasket 260 is in contact with the secondary keel 300; the plane of the second arc-shaped fixing gasket 260 is in contact with the support nut 240.

[0007] Furthermore, the present invention provides a multi-curved metal plate curtain wall installation system, which may also have the following characteristics: the U-shaped buckle assembly 500 also includes a male buckle anti-slip gasket 540 and a female buckle anti-slip gasket 570; the outer sides of the two side panels have engaging teeth 511b; the male buckle anti-slip gasket 540 and the female buckle anti-slip gasket 570 have teeth matching the engaging teeth 511b; the threaded end of the male buckle bolt 520 passes through the long hole groove 511a of one side panel 511, and then passes through the male buckle anti-slip gasket 540, and then engages with the male buckle nut 530, at which time the teeth of the male buckle anti-slip gasket 540 engage with the engaging teeth 511b; the threaded end of the female buckle bolt 550 passes through the long hole groove 511a of the other side panel 511; and then passes through the female buckle anti-slip gasket 570, and then engages with the female buckle nut 560, at which time the teeth of the female buckle anti-slip gasket 570 engage with the engaging teeth 511b.

[0008] Furthermore, the present invention provides a multi-curved metal plate curtain wall installation system, which may also have the following characteristics: the cylinder of the secondary keel 300 is formed by splicing in sections; and the cylinder of the secondary keel 300 is arc-shaped.

[0009] Furthermore, the present invention provides a multi-curved metal plate curtain wall installation system, which may also have the following characteristics: it also includes a U-shaped connecting strip 600 and one or two L-shaped decorative panels 700; the web of the U-shaped connecting strip 600 is fixedly connected to the connecting plate 512 of the U-shaped buckle 510 by fasteners; and one side of the L-shaped decorative panel 700 is fixedly connected to any one side wing of the U-shaped connecting strip 600.

[0010] Furthermore, the present invention provides a multi-curved metal plate curtain wall installation system, which may also have the following characteristics: it also includes a bolting fastener 800; the L-shaped decorative panel 700 includes a reinforcing rib 710; the adjacent two sides of the reinforcing rib 710 are respectively fixed on the two sides of the L-shaped decorative panel 700; the bolting fastener 800 includes a U-shaped main body 810 and two connecting wings 820; the two connecting wings 820 are respectively connected to one end of the two side wings of the U-shaped main body 810; one side of two adjacent L-shaped decorative panels 700 is respectively fitted and interlocked with the two side wings of the U-shaped main body 810; the two connecting wings 820 are respectively fixedly connected to the reinforcing ribs of the two adjacent L-shaped decorative panels 700.

[0011] In addition, the present invention provides a method for installing a multi-curved metal plate curtain wall, comprising the following steps:

[0012] Step A: installing and fixing the main keel 100.

[0013] Step B: The support assembly 200 is fixedly installed on the main keel 100 according to a preset position.

[0014] Step C: The secondary keel 300 of the round tube is fixedly installed on the support assembly 200.

[0015] Step D: The male buckle 410 and the female buckle 420 of the clamp assembly 400 are encircled on the secondary keel 300; one side of the male buckle 410 and the female buckle 420 are buckled; the threaded end of the clamp bolt 430 passes through the other side of the male buckle 410 and the female buckle 420, and then engages with the clamp nut 440.

[0016] Step E, the U-shaped buckle 510 is sleeved on the clamp assembly 400, that is, the inner side of one side plate 511 of the U-shaped buckle 510 is attached to the outer side of the male buckle 410, and the inner side of the other side plate 511 is attached to the outer side of the female buckle 420, the bolt head of the male buckle bolt 520 is embedded in the male buckle step groove 411, and the bolt head of the female buckle bolt 550 is embedded in the female buckle step groove 421; the male buckle nut 530 is meshed with the male buckle bolt 520 on the outer side of one side plate 511; the female buckle nut 560 is meshed with the female buckle bolt 550 on the outer side of the other side plate 511.

[0017] Furthermore, the present invention provides a method for installing a multi-curved metal plate curtain wall, which may also have the following characteristics: it also includes the following steps: step F, the web of the U-shaped connecting strip 600 and the connecting plate 512 of the U-shaped buckle 510 are fixedly connected by fasteners; one side of the L-shaped decorative panel 700 is fixedly connected to any one side wing of the U-shaped connecting strip 600.

[0018] Furthermore, the present invention provides a method for installing a multi-curved metal plate curtain wall, which may also have the following characteristics: it also includes the following steps: Step G, one side of two adjacent L-shaped decorative panels 700 is respectively fitted and interlocked with two side wings of the U-shaped main body 810 of the bolt fastener 800; the two connecting wings 820 of the bolt fastener 800 are respectively fixedly connected to the reinforcing ribs of the two adjacent L-shaped decorative panels 700. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the connection structure between the main keel and the support assembly in the present invention.

[0020] Figure 2 It is a stereoscopic diagram of the connection structure between the secondary keel and the support assembly in the present invention.

[0021] Figure 3 It is a half-section view of the connection structure between the secondary keel and the support assembly in the present invention.

[0022] Figure 4 It is a schematic diagram of the connection structure of the secondary keel, the hoop assembly and the U-shaped buckle assembly in the present invention.

[0023] Figure 5 It is a structural schematic diagram of the U-shaped buckle in the present invention.

[0024] Figure 6 It is a schematic diagram of the panel docking structure in the present invention.

[0025] Figure 7 This is a schematic diagram of the structure of the multi-curved metal plate curtain wall installation system of the present invention.

[0026] Figure 8 It is a schematic diagram of the structure of the bolt fastener in the present invention. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] In this embodiment, the multi-curved metal plate curtain wall installation system includes: a main keel 100, a support assembly, a secondary keel 300, a clamp assembly 400, a U-shaped buckle assembly 500, a U-shaped connecting strip 600, an L-shaped decorative panel 700 and a bolt fastener 800.

[0029] In this embodiment, the main keel 100 is made of 100*60*4mm square tube, which is welded and fixed to the steel structure. The installation points of the support assembly are set on the main keel 100 according to the design, and the connecting rod 210 of the support assembly is welded and fixed to the main keel 100. The secondary keel 300 is made of φ50*3mm arc-shaped round tube and is bolted to the support assembly in sections.

[0030] In this embodiment, the support assembly includes: a connecting rod 210, a connecting plate 220, two support bolts 230, two support nuts 240, two first arc-shaped fixing washers 250, two second arc-shaped fixing washers 260 and four elastic washers 270. The number of the support bolts 230, the support nuts 240, the first arc-shaped fixing washers 250 and the second arc-shaped fixing washers 260 is the same and corresponds one to one.

[0031] In this embodiment, one end of the connecting rod 210 is welded and fixed to the main keel 100, and the other end is welded and fixed to the connecting plate 220; the connecting plate 220 has four arc-shaped long bolt holes 221. One side of the first arc-shaped fixing gasket 250 and the second arc-shaped fixing gasket 260 is an arc-shaped surface, which matches the shape of the secondary keel 300. The other side of the first arc-shaped fixing gasket 250 and the second arc-shaped fixing gasket 260 is a flat surface;

[0032] like Figure 2 and Figure 3 As shown, in this embodiment, the threaded end of the support bolt 230 passes through an elastic washer 270 upwards, and then passes through the bolting hole 221 of the connecting plate 220; then passes through from the plane of the first arc-shaped fixing washer 250 to the arc-shaped surface, and then passes through the secondary keel 300 horizontally; then passes from the arc-shaped surface of the second arc-shaped fixing washer 260 to the plane, and then passes through an elastic washer 270, and finally engages with the corresponding support nut 240. When bolting the secondary keel 300, the special arc-shaped first arc-shaped fixing washer 250 and the second arc-shaped fixing washer 260 are used to bolt the secondary keel in an embracing manner, so that the stability of the secondary keel is enhanced.

[0033] like Figure 4 As shown, the clamp assembly 400 includes: a male buckle 410, a female buckle 420, a clamp bolt 430 and a clamp nut 440.

[0034] like Figure 5 As shown, in this embodiment, the arc of the inner side of the male buckle 410 matches the outer circle of the secondary keel 300. The upper side of the male buckle 410 has a male buckle step groove 411, a bolt through hole on the left side, and a protruding engaging portion 412 on the right side. The arc of the inner side of the female buckle 420 matches the outer circle of the secondary keel 300. The lower side of the female buckle 420 has a female buckle step groove 421, a bolt through hole 423 on the left side, and an engaging groove 421 on the right side.

[0035] The male buckle 410 and the female buckle 420 are encircled on the secondary keel 300; the engaging portion 412 of the male buckle 410 is engaged with the engaging groove 421 of the female buckle 420; the threaded end of the clamp bolt 430 passes through the bolt through holes of the male buckle 410 and the female buckle 420, and then engages with the clamp nut 440, completing the fixed connection between the clamp assembly 400 and the secondary keel 300. The clamp assembly can realize multi-angle curved surface connection of the metal veneer, and the adjustable design of the clamp can realize 360° rotation adjustment without dead angle.

[0036] like Figure 4 and Figure 6 As shown, the U-shaped buckle assembly 500 includes: a U-shaped buckle 510, a male buckle bolt 520, a male buckle nut 530, a female buckle bolt 550, a female buckle nut 560, a male buckle anti-slip gasket 540 and a female buckle anti-slip gasket 570.

[0037] The size of the inner groove of the male buckle step groove 411 matches the size of the bolt head of the male buckle bolt 520, and the size of the opening groove of the male buckle step groove 411 matches the size of the threaded end of the male buckle bolt 520. Similarly, the size of the inner groove of the female buckle step groove 421 matches the size of the bolt head of the female buckle bolt 550, and the size of the opening groove of the female buckle step groove 421 matches the size of the threaded end of the female buckle bolt 550.

[0038] The U-shaped buckle 510 includes: two side plates 511 and a connecting plate 512; the two ends of the connecting plate 512 are respectively connected perpendicularly to one end of the two side plates 511. The two side plates 511 have long slots 511a; the direction of the long slots 511a is perpendicular to the direction of the male buckle step groove 411 and the female buckle step groove 421. The outer sides of the two side plates have meshing teeth 511b; the male buckle anti-skid pad 540 and the female buckle anti-skid pad 570 have teeth matching the meshing teeth 511b.

[0039] The threaded end of the male buckle bolt 520 passes through the long hole groove 511a of one side plate 511, and the threaded end of the female buckle bolt 550 passes through the long hole groove 511a of the other side plate 511. The U-shaped buckle 510 is sleeved on the clamp assembly 400 from the front to the back, that is, the inner side of one side plate 511 is attached to the outer side of the male buckle 410, and the inner side of the other side plate 511 is attached to the outer side of the female buckle 420. The bolt head of the male buckle bolt 520 is embedded in the male buckle step groove 411, and the bolt head of the female buckle bolt 550 is embedded in the female buckle step groove 421.

[0040] After the male buckle anti-skid gasket 540 is sleeved on the male buckle bolt 520, it meshes with the male buckle nut 530, and at this time, the teeth of the male buckle anti-skid gasket 540 mesh with the meshing teeth 511b. Similarly, after the female buckle anti-skid gasket 570 is sleeved on the female buckle bolt 550, it meshes with the female buckle nut 560, and at this time, the teeth of the female buckle anti-skid gasket 570 mesh with the meshing teeth 511b, completing the fixed connection between the U-shaped buckle assembly 500 and the hoop assembly 400. After the connection is completed, the connecting plate 512 of the U-shaped buckle 510 is the basic surface for curtain wall installation. The long strip male buckle step groove and the female buckle step groove set on the hoop assembly are bolted to the U-shaped buckle, which can realize the adjustment of the installation angle of the decorative panel. The long strip hole of the hoop assembly realizes longitudinal adjustment, and the long strip hole grooves are set up on the upper and lower parts of the U-shaped buckle to realize lateral adjustment. Meshing teeth are set at the long strip hole groove of the U-shaped buckle, and the anti-skid gasket is inserted during bolting so that the U-shaped buckle will not shift after being fixed.

[0041] like Figure 7 and Figure 8 As shown, the web of the U-shaped connecting strip 600 and the connecting plate 512 of the U-shaped buckle 510 are fixedly connected by self-tapping screws 1. One side of an L-shaped decorative plate 700 is fixedly connected to one side wing of the U-shaped connecting strip 600 by rivets 2, and similarly, one side of another L-shaped decorative plate 700 is fixedly connected to the other side wing of the U-shaped connecting strip 600 by rivets 2. Foam strips 3 and structural silicone 4 are filled between the two L-shaped decorative plates 700.

[0042] In this embodiment, the L-shaped decorative plate 700 is a metal plate, including a reinforcing rib 710. The adjacent two sides of the reinforcing rib 710 are respectively fixed on the two sides of the L-shaped decorative plate 700. The bolt fastener 800 includes a U-shaped body 810 and two connecting wings 820. The two connecting wings 820 are respectively connected to one end of the two side wings of the U-shaped body 810. One side of two adjacent L-shaped decorative plates 700 is respectively fitted and interlocked with the two side wings of the U-shaped body 810; the two connecting wings 820 are respectively fixedly connected to the reinforcing ribs of two adjacent L-shaped decorative plates 700 using fasteners 5. The bolt fastener can control the flatness of the gap between the multi-curved panels, thereby achieving the function of adjusting the overall flatness.

[0043] It should be noted that this embodiment only describes a connection structure of a support assembly, a secondary keel 300, a clamp assembly 400, a U-shaped buckle assembly 500 and several decorative panels. In actual practice, a plurality of clamp assemblies can be installed on a secondary keel 300, and their number is not necessarily a one-to-one relationship. In addition, according to the actual strength consideration, the number of fasteners such as bolts can also be increased or decreased.

[0044] Installation method of multi-curved metal panel curtain wall installation system:

[0045] Preliminary steps: measuring and setting out

[0046] Review the installation deviation of the main steel structure based on the design drawings, compare the actual measured dimensions on site with the design drawings and models to ensure that the construction is within the allowable deviation. Generate the material list of the main keel, secondary keel, and decorative panel through reverse modeling with BIM software. The main and secondary keels are batch bent using a bending machine according to the bending size of the material list and the corresponding bolt holes are opened.

[0047] Step A, extract the three-dimensional coordinates and the axis grid control line, and weld and fix the 100*60*4mm square tube main keel 100 to the steel structure according to the axis grid and the three-dimensional coordinate points.

[0048] Step B: After the main keel 100 is installed, the support assembly installation point is released on the main keel 100, the connecting rod 210 is welded and fixed to the main keel 100, and the connecting plate 220 is provided with arc-shaped long bolt holes 221 in different directions to connect with the secondary keel 300 at multiple angles.

[0049] Step C, the φ50*3mm secondary keel 300 round tube is bolted to the special connection plate 220 in sections. The threaded end of the support bolt 230 passes through an elastic gasket 270 upwards, and then passes through the bolting hole 221 of the connection plate 220; then passes from the plane of the first arc-shaped fixing gasket 250 to the arc-shaped surface, and then passes through the secondary keel 300 horizontally; then passes from the arc-shaped surface of the second arc-shaped fixing gasket 260 to the plane, and then passes through an elastic gasket 270, and finally engages with the corresponding support nut 240. When bolting the secondary keel 300, the special arc-shaped first arc-shaped fixing gasket 250 and the second arc-shaped fixing gasket 260 are used to bolt the secondary keel in an embraced manner, so that the stability of the secondary keel is enhanced.

[0050] Step D: The male buckle 410 and the female buckle 420 of the clamp assembly 400 are encircled on the secondary keel 300; one side of the male buckle 410 and the female buckle 420 are buckled; the threaded end of the clamp bolt 430 passes through the other side of the male buckle 410 and the female buckle 420, and then engages with the clamp nut 440.

[0051] Step E: The threaded end of the male bolt 520 passes through the long slot 511a of one side plate 511, and the threaded end of the female bolt 550 passes through the long slot 511a of the other side plate 511. The U-shaped buckle 510 is put on the clamp assembly 400 from the front to the back, that is, the inner side of one side plate 511 is attached to the outer side of the male buckle 410, and the inner side of the other side plate 511 is attached to the outer side of the female buckle 420. The bolt head of the male bolt 520 is embedded in the male step groove 411, and the bolt head of the female bolt 550 is embedded in the female step groove 421. After the male anti-skid washer 540 is put on the male bolt 520, it meshes with the male nut 530, and at this time, the teeth of the male anti-skid washer 540 are engaged with the meshing teeth 511b. Similarly, after the female buckle anti-skid gasket 570 is put on the female buckle bolt 550, it engages with the female buckle nut 560. At this time, the teeth of the female buckle anti-skid gasket 570 engage with the engaging teeth 511b, completing the fixed connection between the U-shaped buckle assembly 500 and the clamp assembly 400.

[0052] Step F: The web of the U-shaped connecting strip 600 is fixedly connected to the connecting plate 512 of the U-shaped buckle 510 by using self-tapping screws; one side of the two L-shaped decorative panels 700 is fixedly connected to the two side wings of the U-shaped connecting strip 600 by using rivets. The two L-shaped decorative panels 700 are also filled with foam strips 3 and structural silicone 4.

[0053] Step G: One side of two adjacent L-shaped decorative panels 700 is respectively fitted and interlocked with the two side wings of the U-shaped main body 810 of the bolt fastener 800; the two connecting wings 820 of the bolt fastener 800 are respectively fixedly connected to the reinforcing ribs of the two adjacent L-shaped decorative panels 700.

[0054] The embodiments described above are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 on the present invention.

Claims

1. A multi-curved metal plate curtain wall installation system, characterized in that: It comprises a main keel (100), a support assembly, a secondary keel (300), a hoop assembly (400) and a U-shaped buckle assembly (500); Wherein, the support assembly is fixed on the main keel (100); The secondary keel (300) is a round tube fixed on the support assembly; The clamp assembly (400) comprises a male buckle (410), a female buckle (420), a clamp bolt (430) and a clamp nut (440); The male buckle (410) and the female buckle (420) are encircled on the secondary keel (300); one side of the male buckle (410) and the female buckle (420) are interlocked; the threaded end of the clamp bolt (430) penetrates the other side of the male buckle (410) and the female buckle (420) and then meshes with the clamp nut (440); The male buckle (410) has a male buckle step groove (411), and the female buckle (420) has a female buckle step groove (421); the male buckle step groove (411) and the female buckle step groove (421) are respectively located on two sides of the clamp assembly (400); The U-shaped buckle assembly (500) comprises: a U-shaped buckle (510), a male buckle bolt (520), a male buckle nut (530), a female buckle bolt (550) and a female buckle nut (560); The size of the inner groove of the male buckle step groove (411) matches the size of the bolt head of the male buckle bolt (520), and the size of the opening groove of the male buckle step groove (411) matches the size of the threaded end of the male buckle bolt (520); The size of the inner groove of the box buckle step groove (421) matches the size of the bolt head of the box buckle bolt (550), and the size of the opening groove of the box buckle step groove (421) matches the size of the threaded end of the box buckle bolt (550); The U-shaped buckle (510) comprises two side plates (511) and a connecting plate (512); two ends of the connecting plate (512) are respectively connected to one end of the two side plates (511); The two side plates (511) are provided with long hole grooves (511a); the direction of the long hole grooves (511a) is perpendicular to the direction of the male buckle step groove (411) and the female buckle step groove (421); The threaded end of the male bolt (520) passes through the long hole groove (511a) of one side plate (511), and the threaded end of the female bolt (550) passes through the long hole groove (511a) of the other side plate (511); The U-shaped buckle (510) is sleeved on the clamp assembly (400), that is, the inner side of one side plate (511) is attached to the outer side of the male buckle (410), and the inner side of the other side plate (511) is attached to the outer side of the female buckle (420), the bolt head of the male buckle bolt (520) is embedded in the male buckle step groove (411), and the bolt head of the female buckle bolt (550) is embedded in the female buckle step groove (421); The male screw nut (530) is meshed with the male screw bolt (520) on the outer side of one of the side plates (511); the female screw nut (560) is meshed with the female screw bolt (550) on the outer side of the other side plate (511); The support assembly comprises a connecting rod (210), a connecting plate (220), at least one support bolt (230), and at least one support nut (240); the support bolts (230) and the support nuts (240) are the same in number and correspond one to one; The connection plate (220) is provided with four arc-shaped long bolt connection holes (221); One end of the connecting rod (210) is fixed to the main keel (100), and the other end is fixed to the connecting plate (220); The threaded end of the support bolt (230) passes through the long bolt hole (221) of the connecting plate (220), and then transversely penetrates the secondary keel (300), and then engages with the corresponding support nut (240); The cylinder of the secondary keel (300) is formed by splicing in sections; the cylinder of the secondary keel (300) is arc-shaped; It also includes a U-shaped connecting strip (600) and one or two L-shaped decorative panels (700); The web of the U-shaped connecting strip (600) and the connecting plate (512) of the U-shaped buckle (510) are fixedly connected by fasteners; One side of the L-shaped decorative plate (700) is fixedly connected to any one side wing of the U-shaped connecting strip (600); Also included is a bolt fastener (800); The L-shaped decorative plate (700) comprises a reinforcing rib (710); The adjacent two sides of the reinforcing rib (710) are respectively fixed to the two sides of the L-shaped decorative plate (700); The bolt fastener (800) comprises a U-shaped body (810) and two connecting wings (820); The two connecting wings (820) are respectively connected to one end of the two side wings of the U-shaped body (810); One side of the two adjacent L-shaped decorative panels (700) is respectively fitted and interlocked with the two side wings of the U-shaped main body (810); and the two connecting wings (820) are respectively fixedly connected to the reinforcing ribs of the two adjacent L-shaped decorative panels (700).

2. The multi-curved metal panel curtain wall installation system according to claim 1, characterized in that: in, The support assembly further comprises at least one first arc-shaped fixing gasket (250) and at least one second arc-shaped fixing gasket (260); the number of the two is the same as the number of the support bolts (230), and they correspond one to one; One side of the first arc-shaped fixing gasket (250) and the second arc-shaped fixing gasket (260) is an arc-shaped surface, which matches the shape of the secondary keel (300); The other side of the first arc-shaped fixing gasket (250) and the second arc-shaped fixing gasket (260) is a plane; The first arc-shaped fixing gasket (250) is arranged between the secondary keel (300) and the connecting plate (220), and the arc-shaped surface of the first arc-shaped fixing gasket (250) is in contact with the secondary keel (300); The second arc-shaped fixing gasket (260) is arranged between the secondary keel (300) and the support nut (240), and the arc-shaped surface of the second arc-shaped fixing gasket (260) is in contact with the secondary keel (300).

3. The multi-curved metal panel curtain wall installation system according to claim 1, characterized in that: in, The U-shaped buckle assembly (500) further comprises a male buckle anti-skid gasket (540) and a female buckle anti-skid gasket (570); The outer sides of the two side plates are provided with meshing teeth (511b); The male buckle anti-skid pad (540) and the female buckle anti-skid pad (570) have teeth matching the meshing teeth (511b); The threaded end of the male buckle bolt (520) passes through the long slot (511a) of one of the side plates (511), and then passes through the male buckle anti-skid pad (540), and then meshes with the male buckle nut (530), at which time the teeth of the male buckle anti-skid pad (540) mesh with the meshing teeth (511b); The threaded end of the box bolt (550) passes through the long hole groove (511a) of the other side plate (511); after passing through the box anti-slip gasket (570), it engages with the box nut (560), and at this time, the teeth of the box anti-slip gasket (570) engage with the engaging teeth (511b).

4. The installation method of the multi-curved metal plate curtain wall installation system according to claim 1, characterized in that: The following steps are involved: Step A, installing and fixing the main keel (100); Step B: the support assembly (200) is fixedly installed on the main keel (100) according to a preset position; Step C, the secondary keel (300) of the circular tube is fixedly mounted on the support assembly (200); Step D: The male buckle (410) and the female buckle (420) of the clamp assembly (400) are encircled on the secondary keel (300); one side of the male buckle (410) and the female buckle (420) are interlocked; the threaded end of the clamp bolt (430) penetrates the other side of the male buckle (410) and the female buckle (420) and then meshes with the clamp nut (440); Step E: The U-shaped buckle (510) is sleeved on the clamp assembly (400), that is, the inner side of one side plate (511) of the U-shaped buckle (510) is fitted on the outer side of the male buckle (410), and the inner side of the other side plate (511) is fitted on the outer side of the female buckle (420); the bolt head of the male buckle bolt (520) is embedded in the male buckle step groove (411), and the bolt head of the female buckle bolt (550) is embedded in the female buckle step groove (421); the male buckle nut (530) is meshed with the male buckle bolt (520) on the outer side of one side plate (511); and the female buckle nut (560) is meshed with the female buckle bolt (550) on the outer side of the other side plate (511).

5. The method for installing a multi-curved metal curtain wall according to claim 4, characterized in that: The following steps are also included; Step F: The web of the U-shaped connecting strip (600) and the connecting plate (512) of the U-shaped buckle (510) are fixedly connected by fasteners; One side of the L-shaped decorative plate (700) is fixedly connected to any one side wing of the U-shaped connecting strip (600).

6. The method for installing a multi-curved metal curtain wall according to claim 5, characterized in that: The following steps are also included; Step G: One side of two adjacent L-shaped decorative panels (700) is respectively fitted and interlocked with the two side wings of the U-shaped main body (810) of the bolt fastener (800); the two connecting wings (820) of the bolt fastener (800) are respectively fixedly connected to the reinforcing ribs of the two adjacent L-shaped decorative panels (700).

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