Curtain wall inner corner installation structure and method

Abstract

The present invention relates to the field of curtain wall structure, and aims to solve the problems of inflexible use, narrow application scope and difficulty in installing special-shaped corner curtain wall panels in the prior art, and provides a curtain wall inner corner installation structure and method, which includes a wall; a fixed steel plate is provided at the inner corner of the wall, and the fixed steel plate is connected to the wall through expansion bolts; a first support and a second support are provided on the outer side of the fixed steel plate, and the same end of the first support and the second support is connected to the fixed steel plate, and the other ends of the first support and the second support are provided with a triangular keel, and the triangular keel is detachably connected to the other ends of the first support and the second support by bolts; a curtain wall panel is provided on the outer side of the triangular keel, and a hidden frame keel is provided between the triangular keel and the curtain wall panel, and one end of the hidden frame keel is connected to the outer side of the triangular keel, and the other end of the hidden frame keel is connected to the inner side of the curtain wall panel. The beneficial effects of the present invention are that it can be used flexibly, has a wide application scope, and is easy to install the special-shaped corner curtain wall panel.

Description

Technical Field

[0001] The invention relates to the field of curtain wall structures, and in particular to a curtain wall inner corner installation structure and method. Background Art

[0002] In real life, with the development of the times, the exterior walls of various high-rise buildings in the construction industry all adopt curtain wall structures, replacing traditional tile exterior walls and paint exterior walls. In order to better reflect the appearance of the building, more and more building surfaces adopt angled and curved structures, which leads to the structural requirements of multi-angle changes in the curtain wall panels. The structure of the existing keel frame is generally relatively fixed. When encountering special-shaped structures, curtain wall panels cannot be installed. Therefore, it cannot be used flexibly and has a narrow application range. In order to meet the curtain wall effects of special angles, it is necessary to develop a variety of styles of corner keels for assembly to solve the problems of difficult installation, high cost, serious waste of resources and complex structure of special-shaped corner curtain wall panels in the existing technology. Summary of the invention

[0003] The present invention aims to provide a curtain wall inner corner installation structure and method to solve the problems in the prior art of inflexible use, narrow application range, difficult installation of special-shaped corner curtain wall panels, high cost, serious waste of resources and complex structure.

[0004] The embodiment of the present invention is achieved as follows:

[0005] An embodiment of the present invention provides a curtain wall internal corner installation structure, which includes a wall body; a fixed steel plate is provided at the internal corner of the above-mentioned wall body, and the above-mentioned fixed steel plate is detachably connected to the above-mentioned wall body through expansion bolts; a first support member and a second support member are provided on the outer side of the above-mentioned fixed steel plate, and the first support member and the second support member are arranged in parallel with each other, and the same end of the above-mentioned first support member and the second support member is fixedly connected to the outer side of the above-mentioned fixed steel plate, and the other ends of the above-mentioned first support member and the second support member are provided with a triangular keel, and the above-mentioned triangular keel is detachably connected to the other ends of the above-mentioned first support member and the second support member through bolts; a curtain wall panel is provided on the outer side of the above-mentioned triangular keel, and a hidden frame keel is provided between the above-mentioned triangular keel and the curtain wall panel, one end of the above-mentioned hidden frame keel is connected to the outer side of the above-mentioned triangular keel, and the other end of the above-mentioned hidden frame keel is connected to the inner side of the above-mentioned curtain wall panel.

[0006] During installation, first fix the above-mentioned fixed steel plate at the inner corner of the above-mentioned wall by expansion bolts, then weld the same end of the first support member and the second support member to the outer side of the above-mentioned fixed steel plate, and then connect the triangular keel bolts to the other end of the above-mentioned first support member and the second support member, then fix one end of the above-mentioned concealed frame keel to the outer side of the above-mentioned triangular keel, and finally fix the curtain wall panel to the other end of the above-mentioned concealed frame keel.

[0007] The curtain wall internal corner installation structure disclosed in this embodiment has the beneficial effects of simple structure, flexible use, wide application range, easy installation of special-shaped corner curtain wall panels, low cost and little waste of resources due to the triangular keel used at the corner.

[0008] Optionally: the above-mentioned fixing steel plate is adapted to the inner corner of the above-mentioned wall, and both sides of the above-mentioned fixing steel plate are connected to the above-mentioned wall through expansion bolts. This arrangement allows the above-mentioned fixing steel plate to be more firmly connected to the above-mentioned wall.

[0009] Optionally: the other end of the first support member has a first fixing section, and the other end of the second support member has a second fixing section. The first fixing section and the second fixing section fit the triangular keel, and such arrangement facilitates the installation of the triangular keel.

[0010] Optionally: the above-mentioned triangular keel has a first side, a second side and a third side, and the first side is equal to the second side in length; the first fixing section of the above-mentioned first support member is in contact with the first side of the above-mentioned triangular keel and are fixed to each other by bolts, and the second fixing section of the above-mentioned second support member is in contact with the second side of the above-mentioned triangular keel and are fixed to each other by bolts; the third side of the above-mentioned triangular keel is connected to one end of the above-mentioned concealed frame keel. Such an arrangement facilitates the connection between the above-mentioned first support member and the second support member and the above-mentioned triangular keel to be more stably connected to the above-mentioned triangular keel to avoid loosening or falling off, thereby making the curtain wall positive angle installation structure more stable.

[0011] Optionally: the curtain wall panel has an inner panel surface and an outer panel surface, a honeycomb core is provided between the inner panel surface and the outer panel surface, and both sides of the honeycomb core are fully and tightly fitted with the inner panel surface and the outer panel surface.

[0012] Optionally: the same end of the first support member and the second support member is welded to the outer side of the fixed steel plate.

[0013] Optionally: multiple connecting devices are also provided on both sides of the inner corner of the above-mentioned wall, and the multiple connecting devices all have a base. A steel plate is provided between the above-mentioned base and the above-mentioned wall. The above-mentioned steel plate and one end of the base are connected to the above-mentioned wall through expansion bolts, and the other end of the above-mentioned base has a vertically arranged square steel, and the above-mentioned square steel is detachably connected to the above-mentioned base through bolts. The outer side of the above-mentioned square steel has a horizontally arranged square tube steel, one side of the above-mentioned square tube steel is welded to the square steel, and the above-mentioned curtain wall panel corresponding to the other side of the above-mentioned square tube steel is connected to the other side of the square tube steel through a plurality of the above-mentioned concealed frame keels. Such an arrangement is used to cooperate with the installation structure at the inner corner of the curtain wall to support the curtain wall as a whole.

[0014] Optionally: the base includes a web and a wing plate, the web is perpendicular to the wing plate, and the wing plate is completely in contact with the steel plate; first holes are provided on both sides of the outer end of the web, the square steel is located inside the outer end of the web, and second holes are provided on both sides of the square steel, the first hole is matched with the second hole, and the square steel is connected to the outer end of the web by bolts passing through the first hole and the second hole, and can be disassembled and adjusted for the second time according to actual needs.

[0015] The horizontally arranged square tube steels are evenly distributed in the vertical direction, and the vertically arranged square steels are evenly distributed in the horizontal direction. This arrangement not only reasonably arranges the square steels and square tube steels, but also makes the overall structure of the curtain wall evenly stressed, making the curtain wall structure more stable.

[0016] The present invention is also achieved through the following technical solutions:

[0017] A curtain wall inner corner installation method comprises the following steps:

[0018] Step 1: Lay out horizontal and vertical control lines on the wall, and then lay out the panel arrangement lines of the curtain wall panels according to the curtain wall layout design, combined with the position, elevation and characteristics of the curtain wall facade changes. According to the on-site conditions after the layout, measure the actual construction of the civil engineering structure, and deal with the positions with large errors that need to be adjusted;

[0019] Step 2: Install the fixed steel plate according to the positioning and design spacing of the square steel. The fixed steel plate is fixed to the wall through expansion bolts. After the installation is completed, use a torque wrench to check the tightening strength of the bolts and nuts, and spot weld them;

[0020] Determine the positions of the first support and the second support according to the vertical control line. During construction, first spot weld the first support and the second support on the fixed steel plate, then check their three-dimensional errors one by one, and fully weld and fix them after they are checked and adjusted to be qualified;

[0021] After the installed fixed steel plate and the first and second supporting members are inspected and accepted as qualified, the welding positions are treated with anti-corrosion;

[0022] Step 3: Install the insulation layer on the cleaned wall. The installation of the insulation board should be determined according to different projects and their specific requirements, but must comply with the "Construction Quality Acceptance Code for Energy-Saving Building Projects" (GB50411-2007);

[0023] Step 4: Install the triangular keel. Install the triangular keel to the first fixing section and the second fixing section at the outer ends of the first support member and the second support member by means of bolts. After installation, use a torque wrench to check the tightening strength of the bolts and nuts.

[0024] Step 5: Cut the curtain wall panels and cut the curtain wall panels at the inner corners at 45°.

[0025] Step 6: Slide the outer end of the concealed frame keel into the installation groove provided on the inner surface of the curtain wall panel, and install four concealed frame keels on the inner surface of each curtain wall panel;

[0026] Hang the curtain wall panels on the triangular keel through the concealed keel, and install them layer by layer from bottom to top. After the initial installation of the curtain wall panels, adjust the panels to ensure that the panels are horizontal and vertical by adjusting the flatness and verticality of the curtain wall panels. The gap size meets the requirements;

[0027] Step seven, after the construction is completed, clean it directly with clean water. Locally contaminated areas can be cleaned with cotton cloth dipped in xylene solvent. When mortar and other objects are splashed on the curtain wall panel, clean it with a short-bristled brush when it is almost dry, and then rinse with clean water. Do not grind directly with hard objects such as sandpaper to avoid damaging the self-cleaning layer of the curtain wall panel.

[0028] In summary, the curtain wall internal corner installation structure disclosed in the present invention has the beneficial effects of simple structure, flexible use, wide application range, easy installation of special-shaped corner curtain wall panels, low cost and little waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 It is a vertical view of the square steel and square tube steel in the embodiment of the present invention; (partially cut away)

[0032] Figure 3 In the embodiment of the present invention Figure 2 A schematic diagram of the structure of the partially enlarged figure A.

[0033] Icons: 1-wall; 2-fixed steel plate; 3-first support member; 4-second support member; 5-triangular keel; 6-curtain wall panel; 7-hidden frame keel; 8-first fixed section; 9-second fixed section; 10-first side; 11-second side; 12-third side; 13-inner panel surface; 14-outer panel surface; 15-honeycomb core; 16-connecting device; 17-base; 18-steel plate; 19-square steel; 20-square tube steel; 21-web plate; 22-wing plate; 23-first hole; 24-second hole. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second" and the like appear in the description of the present invention, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0038] In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Example

[0041] See also Figure 1 , Figure 2 and Figure 3 The present embodiment provides a curtain wall inner corner installation structure, comprising a wall 1; a fixed steel plate 2 is provided at the inner corner of the wall 1, and the fixed steel plate 2 is detachably connected to the wall 1 through expansion bolts; a first support member 3 and a second support member 4 are provided on the outer side of the fixed steel plate 2, and the first support member 3 and the second support member 4 are arranged parallel to each other, and the same end of the first support member 3 and the second support member 4 is fixedly connected to the outer side of the fixed steel plate 2, and the other end of the first support member 3 and the second support member 4 is provided with a triangular keel 5, and the triangular keel 5 is detachably connected to the upper The other end of the first support member 3 and the second support member 4; a curtain wall panel 6 is provided on the outer side of the above-mentioned triangular keel 5, and a hidden frame keel 7 is provided between the above-mentioned triangular keel 5 and the curtain wall panel 6, one end of the above-mentioned hidden frame keel 7 is connected to the outer side of the above-mentioned triangular keel 5, and the other end of the above-mentioned hidden frame keel 7 is connected to the inner side of the above-mentioned curtain wall panel 6, and some of the above-mentioned hidden frame keels 7 are prior art, and some of the connections between the above-mentioned hidden frame keels 7 and the triangular keels 5 and the curtain wall panel 6 are prior art, and the scientific name of some of the upper hidden frame keels 7 is "314 stainless steel material aluminum plate dry hanging special hanger", which is not shown in the present application figure.

[0042] During installation, first fix the above-mentioned fixing steel plate 2 at the inner corner of the above-mentioned wall 1 by expansion bolts, then weld the same end of the first support member 3 and the second support member 4 to the outer side of the above-mentioned fixing steel plate 2, and then bolt the triangular keel 5 to the other end of the above-mentioned first support member 3 and the second support member 4, then fix one end of the above-mentioned concealed keel 7 to the outer side of the above-mentioned triangular keel 5, and finally fix the curtain wall panel 6 to the other end of the above-mentioned concealed keel 7.

[0043] The curtain wall internal corner installation structure disclosed in this embodiment has the beneficial effects of simple structure, flexible use, wide application range, easy installation of special-shaped corner curtain wall panels, low cost and little resource waste due to the provision of the triangular keel 5 used at the corner.

[0044] The fixing steel plate 2 is adapted to the inner corner of the wall 1 , and both sides of the fixing steel plate 2 are connected to the wall 1 through expansion bolts. This arrangement allows the fixing steel plate 2 to be more firmly connected to the wall 1 .

[0045] The other end of the first support member 3 has a first fixing section 8, and the other end of the second support member 4 has a second fixing section 9. The first fixing section 8 and the second fixing section 9 fit with the triangular keel 5, so as to facilitate the installation of the triangular keel 5.

[0046] The triangular keel 5 has a first side 10, a second side 11 and a third side 12, and the first side 10 and the second side 11 are of equal length; the first fixing section 8 of the first support member 3 fits with the first side 10 of the triangular keel 5 and are fixed to each other by bolts, and the second fixing section 9 of the second support member 4 fits with the second side 11 of the triangular keel 5 and are fixed to each other by bolts; the third side 12 of the triangular keel 5 is connected to one end of the concealed frame keel 7. This arrangement facilitates the connection between the first support member 3 and the second support member 4 and the triangular keel 5 to be more stably, avoiding loosening or falling off, thereby making the curtain wall positive angle installation structure more stable.

[0047] The curtain wall panel 6 comprises an inner panel surface 13 and an outer panel surface 14 , a honeycomb core 15 is disposed between the inner panel surface 13 and the outer panel surface 14 , and both sides of the honeycomb core 15 are fully and tightly fitted to the inner panel surface 13 and the outer panel surface 14 .

[0048] The same end of the first support member 3 and the second support member 4 is welded to the outer side of the fixing steel plate 2 .

[0049] See also Figure 1 , Figure 2 and Figure 3 A plurality of connection devices 16 are also provided on both sides of the inner corner of the wall 1, and the plurality of connection devices 16 all have a base 17. A steel plate 18 is provided between the base 17 and the wall 1. One end of the steel plate 18 and the base 17 are connected to the wall 1 through expansion bolts. The other end of the base 17 has a vertically arranged square steel 19. The square steel 19 is detachably connected to the base 17 through bolts. The outer side of the square steel 19 has a horizontally arranged square tube steel 20. One side of the square tube steel 20 is welded to the square steel 19. The curtain wall panel 6 corresponding to the other side of the square tube steel 20 is connected to the other side of the square tube steel 20 through a plurality of the concealed frame keels 7. This arrangement is used to cooperate with the installation structure at the inner corner of the curtain wall to support the curtain wall as a whole. The arrangement of the steel plate 18 places the stress point of the base 17 on the steel plate 18, thereby expanding the stress area and further improving the stability of the connecting device. This protects the wall 1 from being easily damaged and effectively isolates the base 17 from the wall 1, making the base 17 less likely to rust or be damaged.

[0050] The base 17 includes a web 21 and a wing plate 22, the web 21 is perpendicular to the wing plate 22, and the wing plate 22 is completely attached to the steel plate 18; first holes 23 are provided on both sides of the outer end of the web 21, the square steel 19 is located in the outer end of the web 21, and second holes 24 are provided on both sides of the square steel 19, the first hole 23 is matched with the second hole 24, and the square steel 19 is connected to the outer end of the web 21 by bolts passing through the first hole 23 and the second hole 24, and can be disassembled and adjusted for a second time according to actual needs.

[0051] The horizontally arranged square tube steels 20 are evenly distributed in the vertical direction, and the vertically arranged square steels 19 are evenly distributed in the horizontal direction. Such an arrangement not only reasonably arranges the square steels 19 and the square tube steels 20, but also makes the overall structure of the curtain wall evenly stressed, making the curtain wall structure more stable.

[0052] A curtain wall inner corner installation method comprises the following steps:

[0053] Step 1: Lay out horizontal and vertical control lines on the wall 1, and then lay out the panel arrangement lines of the curtain wall panels 6 according to the curtain wall layout design and the position, elevation and characteristics of the curtain wall facade changes. According to the on-site conditions after the layout, measure the actual construction of the civil structure, and process the positions with large errors that need to be adjusted;

[0054] Step 2: Install the fixed steel plate 2 according to the positioning and design spacing of the square steel 19. The fixed steel plate 2 is fixed to the wall 1 through expansion bolts. After the installation is completed, use a torque wrench to check the tightening strength of the bolts and nuts, and spot weld them;

[0055] Determine the positions of the first support member 3 and the second support member 4 according to the vertical control line. During construction, first spot weld the first support member 3 and the second support member 4 on the fixed steel plate 2, and then check their three-dimensional errors one by one. After the inspection and adjustment are qualified, fully weld and fix them;

[0056] After the installed fixed steel plate 2, the first support member 3 and the second support member 4 are inspected and accepted as qualified, the welding positions are subjected to anti-corrosion treatment;

[0057] Step 3: construct the insulation layer on the cleaned wall 1. The installation of the insulation board should be determined according to different projects and their specific requirements, but must comply with the "Construction Quality Acceptance Code for Energy-Saving Building Projects" (GB50411-2007);

[0058] Step 4: Install the triangular keel 5. Use bolts to install the triangular keel 5 to the first fixing section 8 and the second fixing section 9 at the outer ends of the first support member 3 and the second support member 4. After installation, use a torque wrench to check the tightening strength of the bolts and nuts.

[0059] Step 5: cutting the curtain wall panel 6 , cutting the curtain wall panel 6 at the inner corner of the curtain wall at 45°, so that the long side of the outer panel surface 14 of the curtain wall panel 6 is shorter than the long side of the inner panel surface 13 .

[0060] Step 6, slide the outer end of the hidden frame keel 7 into the mounting groove provided on the inner panel surface 13 of the curtain wall panel 6, and install four hidden frame keels 7 on the inner panel surface 13 of each curtain wall panel 6;

[0061] Hang the curtain wall panels 6 on the triangular keels 5 through the concealed keels 7, and install them layer by layer from bottom to top. After the initial installation of the panels of the curtain wall panels 6, adjust the panels to ensure that the curtain wall panels 6 are horizontal and vertical by adjusting the flatness and verticality of the curtain wall panels 6. The size of the gap meets the requirements;

[0062] Step seven, after the construction is completed, clean it directly with clean water. Locally contaminated areas can be cleaned with cotton cloth dipped in xylene solvent. When mortar and other objects are splashed on the curtain wall panel 6, clean it with a short-bristled brush when it is almost dry, and then rinse it with clean water. Do not polish it directly with hard objects such as sandpaper to avoid damaging the self-cleaning layer of the curtain wall panel 6.

[0063] The outer surfaces of the base 17 , square steel 19 and square tube steel 20 are all coated with hot-dip galvanizing to prevent the base 17 , square steel 19 and square tube steel 20 from corrosion or rust, thereby extending the service life of the base 17 , square steel 19 and square tube steel 20 .

[0064] The square steel tubes 20 evenly distributed in the vertical direction facilitate the matching of the hooks of each curtain wall panel 6 .

[0065] The curtain wall panel 6 is made of printed porcelain honeycomb aluminum panel. The panels on both sides of the printed porcelain honeycomb aluminum panel are the inner panel 13 and the outer panel 14. The thickness of the outer panel 14 is ≧20 mm. The honeycomb core 15 in the middle is an aluminum alloy honeycomb core with a thickness of ≧17.7 mm. The thickness of the inner panel 13 is ≧0.8 mm.

[0066] The aluminum alloy honeycomb core is hexagonal in shape and evenly distributed.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A curtain wall inner corner installation structure, characterized in that: Including walls; A fixed steel plate is provided at the inner corner of the wall, and the fixed steel plate is detachably connected to the wall via expansion bolts; A first support member and a second support member are provided on the outer side of the fixed steel plate, the first support member and the second support member are arranged parallel to each other, the same end of the first support member and the second support member is fixedly connected to the outer side of the fixed steel plate, and a triangular keel is provided on the other end of the first support member and the second support member, and the triangular keel is detachably connected to the other end of the first support member and the second support member by bolts; A curtain wall panel is arranged on the outer side of the triangular keel, a concealed frame keel is arranged between the triangular keel and the curtain wall panel, one end of the concealed frame keel is connected to the outer side of the triangular keel, and the other end of the concealed frame keel is connected to the inner side of the curtain wall panel.

2. The curtain wall internal corner installation structure according to claim 1, characterized in that: The fixing steel plate is adapted to the inner corner of the wall, and both sides of the fixing steel plate are connected to the wall through expansion bolts.

3. The curtain wall internal corner installation structure according to claim 1, characterized in that: The other end of the first support member has a first fixing section, and the other end of the second support member has a second fixing section, and the first fixing section and the second fixing section are in contact with the triangular keel.

4. The curtain wall internal corner installation structure according to claim 3, characterized in that: The triangular keel has a first side, a second side and a third side, and the first side is equal to the second side in length; The first fixing section of the first support member is in contact with the first side of the triangular keel and fixed to each other by bolts, and the second fixing section of the second support member is in contact with the second side of the triangular keel and fixed to each other by bolts; The third side of the triangular keel is connected to one end of the concealed frame keel.

5. The curtain wall internal corner installation structure according to claim 1, characterized in that: The curtain wall panel has an inner panel surface and an outer panel surface, a honeycomb core is arranged between the inner panel surface and the outer panel surface, and both sides of the honeycomb core are fully and tightly fitted with the inner panel surface and the outer panel surface.

6. The curtain wall internal corner installation structure according to claim 1, characterized in that: The same end of the first support member and the second support member is welded to the outer side of the fixing steel plate.

7. The curtain wall internal corner installation structure according to claim 1, characterized in that: A plurality of connection devices are also provided on both sides of the inner corner of the wall, and each of the connection devices has a base. A steel plate is provided between the base and the wall. One end of the steel plate and the base is connected to the wall through an expansion bolt. The other end of the base has a vertically arranged square steel, and the square steel is detachably connected to the base through bolts. The outer side of the square steel has a horizontally arranged square tube steel, one side of the square tube steel is welded to the square steel, and the curtain wall panel corresponding to the other side of the square tube steel is connected to the other side of the square tube steel through a plurality of the concealed frame keels.

8. The curtain wall internal corner installation structure according to claim 7, characterized in that: The base comprises a web and a wing plate, the web is perpendicular to the wing plate, and the wing plate is completely attached to the steel plate; The outer end of the web is provided with first holes on both sides, the square steel is located inside the outer end of the web, and second holes are provided on both sides of the square steel, the first hole is matched with the second hole, and the square steel is connected to the outer end of the web by bolts passing through the first hole and the second hole.

9. The curtain wall internal corner installation structure according to claim 8, characterized in that: The horizontally arranged square tube steels are evenly distributed along the vertical direction, and the vertically arranged square steels are evenly distributed along the horizontal direction.

10. A curtain wall inner corner installation method, characterized in that: The steps include: Step 1: Lay out horizontal and vertical control lines on the wall, and then lay out the panel arrangement lines of the curtain wall panels according to the curtain wall layout design, combined with the position, elevation and characteristics of the curtain wall facade changes. According to the on-site conditions after the layout, measure the actual construction of the civil structure, and deal with the positions with large errors that need to be adjusted; Step 2: Install the fixed steel plate according to the positioning and design spacing of the square steel. The fixed steel plate is fixed to the wall through expansion bolts. After the installation is completed, use a torque wrench to check the tightening strength of the bolts and nuts, and spot weld them; Determine the positions of the first support and the second support according to the vertical control line. During construction, first spot weld the first support and the second support on the fixed steel plate, then check their three-dimensional errors one by one, and fully weld and fix them after they are checked and adjusted to be qualified; After the installed fixed steel plate and the first and second supporting members are inspected and accepted as qualified, the welding positions are treated with anti-corrosion; Step 3: Install the insulation layer on the cleaned wall. The installation of the insulation board should be determined according to different projects and their specific requirements, but must comply with the "Construction Quality Acceptance Code for Energy-Saving Building Projects" GB50411-2007; Step 4: Install the triangular keel. Install the triangular keel to the first fixing section and the second fixing section at the outer ends of the first support member and the second support member by means of bolts. After installation, use a torque wrench to check the tightening strength of the bolts and nuts. Step 5: Cut the curtain wall panels and cut the curtain wall panels at the inner corners at 45°. Step 6: Slide the outer end of the concealed frame keel into the installation groove provided on the inner surface of the curtain wall panel, and install four concealed frame keels on the inner surface of each curtain wall panel; Hang the curtain wall panels on the triangular keel through the concealed keel, and install them layer by layer from bottom to top. After the initial installation of the curtain wall panels, adjust the panels to ensure that the curtain wall panels are horizontal and vertical, and the gap size meets the requirements by adjusting the flatness and verticality of the curtain wall panels; Step seven, after the construction is completed, clean it directly with clean water. Locally contaminated areas can be cleaned with cotton cloth dipped in xylene solvent. When mortar is splashed on the curtain wall panel, clean it with a short-bristled brush when it is almost dry, and then rinse with clean water. Do not polish directly with sandpaper to avoid damaging the self-cleaning layer of the curtain wall panel.

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