Slidable semi-fabricated polyhedral curtain wall system and construction method thereof

Abstract

The invention discloses a slidable semi-fabricated polyhedral curtain wall system and a construction method thereof, and relates to the technical field of building curtain walls, the slidable semi-fabricated polyhedral curtain wall system comprises side columns, middle columns, channel steel adapters, steel beams, glass channel aluminum and glass panels; the two side stand columns are symmetrically arranged on the two sides of the middle stand column, one ends of the channel steel connectors are connected with the side stand columns, and the other ends of the channel steel connectors are connected with a building body. According to the scheme, the sliding cavities are designed in the side stand columns, the modeling requirements of different inlet and outlet faces are met through a unified stand column profile mold, the demand quantity of the mold is greatly reduced, meanwhile, the glass panel is matched with the falling groove of the glass groove aluminum, the modeling face can be adjusted in a front-back gradual change sliding mode, the glass panel can be evenly stressed, and the appearance of the glass panel is more attractive. The problems that the glass panel is frequently disassembled and assembled in the positioning process, and spontaneous explosion and damage are caused by uneven stress of the edge of the glass panel due to the front-and-back toppling are solved.

Description

Technical Field

[0001] The present invention relates to a slidable semi - prefabricated polyhedron curtain wall system and its construction method, belonging to the technical field of building curtain walls. Background Art

[0002] Conventional curtain walls mostly adopt different shaped profiles for different planes in design. For special shapes, even all use steel keels, and special components need to be produced by suppliers with relatively high processing technologies. This method has the following disadvantages: 1. Inconvenient construction area measures; 2. A large variety of parts, many on - site operation processes, and it is difficult to guarantee the effect; 3. If steel keels are used, usually the welding connection method is adopted, which has potential fire safety hazards; 4. The on - site progress is slow, and it is difficult to guarantee the accuracy. Existing polyhedron curtain walls require a large amount of three - dimensional cutting and processing. This method requires the support of powerful suppliers for complex processing, with high costs and slow progress. Summary of the Invention

[0003] Aiming at the above - mentioned existing technical problems, the object of the present invention is to propose a slidable semi - prefabricated polyhedron curtain wall system and its construction method.

[0004] The technical solution of the present invention is realized as follows: A slidable semi - prefabricated polyhedron curtain wall system includes side columns, middle columns, channel steel adapters, steel cross - beams, glass trough aluminums and glass panels; there are two side columns, and the two side columns are symmetrically arranged on both sides of the middle column. One end of the channel steel adapter is connected to the side column, and the other end is connected to the building main body; one end of the steel cross - beam is fixedly connected to the side column, and the other end is fixedly connected to the middle column;

[0005] A sliding cavity is opened on the side of the side column close to the middle column. The glass trough aluminum is slidably arranged in the sliding cavity and is positioned and connected to the side column by countersunk head screws; an installation groove is provided on the glass trough aluminum. One end of the glass panel is inserted into the installation groove of the glass trough aluminum, and the other end of the glass panel is fixedly connected to the outside of the middle column.

[0006] Preferably, the glass trough aluminum divides the sliding cavity on the side column into two cavities. A first vertical decorative frame and a second vertical decorative frame are respectively arranged on the inner and outer sides of the glass trough aluminum. The first vertical decorative frame closes the cavity located inside the glass trough aluminum, and the second vertical decorative frame closes the cavity located outside the glass trough aluminum.

[0007] Preferably, slots are provided on both sides of the glass channel aluminum. One end of the first vertical decorative frame is inserted into the slot inside the glass channel aluminum, and the other end of the first vertical decorative frame is clamped on the side column; a first aluminum alloy inner pressure plate is provided at the outer end of the side column. One end of the second vertical decorative frame is inserted into the slot outside the glass channel aluminum, and the other end of the second vertical decorative frame is fixed on the side column through the first aluminum alloy inner pressure plate.

[0008] Preferably, a reinforcing steel pipe is fixedly arranged inside the cavity of the glass channel aluminum.

[0009] Preferably, an outdoor decorative part is fixedly arranged on the outer side of the first aluminum alloy inner pressure plate, and an aluminum alloy sealing plate is clamped and arranged on the inner side of the outdoor decorative part. The aluminum alloy sealing plate is used for closing the gap between the first aluminum alloy inner pressure plate and the outdoor decorative part, and the outer side of the aluminum alloy sealing plate is flush with the outer side of the second vertical decorative frame.

[0010] Preferably, a glass attachment frame is fixedly arranged on the outer side of the middle column, and the glass panel is fixed on the glass attachment frame through a two-component structural adhesive; a second aluminum alloy inner pressure plate is fixedly arranged on the glass attachment frame, and the second aluminum alloy inner pressure plate presses the glass panel from the outside; a decorative cover plate is fixedly arranged on the outer side of the second aluminum alloy inner pressure plate.

[0011] Preferably, the steel cross beam is fixedly connected to the side column through an adapter steel part, and an aluminum back plate is arranged at the rear side of the steel cross beam. The two ends of the aluminum back plate are respectively connected and fixed to the adjacent side columns.

[0012] Preferably, a first steel core is arranged inside the side column, and the first steel core is used for connecting and fixing the upper and lower adjacent side columns; a second steel core is arranged inside the middle column, and the second steel core is used for connecting and fixing the upper and lower adjacent middle columns.

[0013] Preferably, a horizontal long hole is formed in the channel steel adapter, and an adjusting bolt is inserted into the horizontal long hole. The adjusting bolt cooperates with the horizontal long hole to adjust the front and rear positions of the side column.

[0014] The present invention also provides a construction method for a slidable semi-assembled polyhedron curtain wall system, comprising the following steps:

[0015] S1. Fix the channel steel adapter on the pre-embedded parts of the building main body by welding;

[0016] S2. Drill the approximate positioning holes of the finished surface of the glass panel in the sliding cavity of the side column in advance in the workshop, slide and adjust the position of the glass groove aluminum and fix it, clamp the cut first vertical decorative frame and the second vertical decorative frame on both sides of the glass groove aluminum respectively, close the sliding cavity, and then fix the reinforcing steel pipe in the inner cavity for reinforcement, complete the overall assembly of the side column, and then transport it to the construction site;

[0017] S3. Fix the first steel insert in the side column, install the assembled side column on the channel steel adapter, and match it with the adjusting bolt through the horizontal long hole on the channel steel adapter, adjust the position and fix it;

[0018] S4, the steel beam, the second steel insert and the decorative cover are transported to the construction site after being processed in the workshop. One end of the steel beam is connected and fixed to the side column through a transfer steel piece, and the other end is welded to the center column. An aluminum back plate is installed on the rear side of the center column so that the center column and the steel beam are not exposed.

[0019] S5. The processed glass panels are installed in the glass groove aluminum in the order of numbers, and the glass is fixed and sealed with glass glue strips and sealants. The glass panels and the center column are finally trimmed and sealed with decorative cover plates.

[0020] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0021] 1. The curtain wall system of the present invention realizes the modeling requirements of different inlet and outlet surfaces by designing a sliding cavity on the side column, which greatly reduces the demand for molds. At the same time, the glass panel cooperates with the glass groove aluminum to realize the modeling surface that can be gradually slid and adjusted forward and backward, and can also keep the glass panel under uniform force, avoiding frequent disassembly and assembly of the glass panel during the positioning process and the self-explosion and breakage problems caused by uneven force on the edge of the glass panel due to the problem of tilting forward and backward.

[0022] 2. Through the assembled combination design of aluminum alloy decorative frame and glass groove aluminum, the problem of uneven closing or even holes caused by processing errors and on-site installation adjustments can be avoided.

[0023] 3. The construction method of the present invention can reduce the workload and construction difficulty at the construction site, improve construction efficiency, and help shorten the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the content of the embodiments of the present invention and these drawings.

[0025] Appendix Figure 1 It is a cross-sectional node diagram of a slidable semi-assembled polyhedron curtain wall system described in the present invention;

[0026] Appendix Figure 2 For appendix Figure 1 It is an enlarged view of part A in the appendix;

[0027] Appendix Figure 3 For appendix Figure 1 It is an enlarged view of part B in the appendix;

[0028] Appendix Figure 4 For appendix Figure 3 It is an enlarged view of part C in the appendix;

[0029] Appendix Figure 5 It is a longitudinal-sectional node diagram of a slidable semi-assembled polyhedron curtain wall system described in the present invention.

[0030] In the figure: 1. Side column; 11. Sliding cavity; 12. First aluminum alloy inner pressing plate; 121. Outdoor decorative part; 122. Aluminum alloy sealing plate; 13. Reinforcing steel pipe; 14. First steel core; 2. Middle column; 21. Glass attachment frame; 211. Second aluminum alloy inner pressing plate; 212. Decorative cover plate; 22. Second steel core; 3. Channel steel adapter; 31. Horizontal long hole; 32. Adjusting bolt; 5. Steel cross beam; 51. Aluminum back plate; 6. Glass channel aluminum; 61. Installation groove; 62. First vertical decorative frame; 63. Second vertical decorative frame; 64. Slot; 7. Glass panel; 8. Building main body; 9. Adapter steel part. Specific embodiments

[0031] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the following will further describe the technical solutions of the embodiments of the present invention in detail with reference to the drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "straight", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0033] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] As shown in the attached Figures 1-5 drawings, a slidable semi - prefabricated polyhedron curtain wall system described in the present invention includes side columns 1, middle columns 2, channel steel adapters 3, steel cross - beams 5, glass groove aluminums 6, and glass panels 7.

[0035] There are two side columns 1, and the two side columns 1 are symmetrically arranged on both sides of the middle column 2. One end of the channel steel adapter 3 is connected to the side column 1, and the other end is connected to the building main body 8 to realize the connection between the curtain wall system and the building main body 8.

[0036] In this embodiment, a horizontal long hole 31 is provided on the channel steel adapter 3, and an adjusting bolt 32 is inserted into the horizontal long hole 31. The adjusting bolt 32 cooperates with the horizontal long hole 31 to adjust the front - rear position of the side column 1 to reduce errors and improve the installation accuracy.

[0037] One end of the steel cross - beam 5 is fixedly connected to the side column 1, and the other end is fixedly connected to the middle column 2; in this embodiment, the steel cross - beam 5 is fixedly connected to the side column 1 through a connecting steel part 9, and the other end is fixedly connected to the middle column by welding. Of course, common bolts, angle codes and other components in the art can also be used to connect the steel cross - beam 5 and the middle column 2.

[0038] Furthermore, an aluminum backplate 51 is provided on the rear side of the steel cross - beam 5. Both ends of the aluminum backplate 51 are respectively fixedly connected to the adjacent side columns 1, playing a role in shielding the middle column 2 and the steel cross - beam 5, making the appearance of the curtain wall more tidy.

[0039] As shown in the attached Figure 1 、3 As shown, a sliding cavity 11 is opened on the side of the side column 1 close to the middle column 2, and the glass groove aluminum 6 is slidably set in the sliding cavity 11, and is positioned and connected with the side column 1 by countersunk screws; the glass groove aluminum 6 has a mounting groove 61, one end of the glass panel 7 is inserted into the mounting groove 61 of the glass groove aluminum 6, and sealant is applied on both sides of the glass panel 7 to improve the sealing and waterproof effect, and the other end of the glass panel 7 is connected and fixed to the outer side of the middle column 2; specifically, a glass auxiliary frame 21 is fixedly set on the outer side of the middle column 2, and the glass panel 7 is fixed on the glass auxiliary frame 21 by a two-component structural adhesive; a second aluminum alloy inner pressure plate 211 is fixedly set on the glass auxiliary frame 21, and the second aluminum alloy inner pressure plate 211 presses the glass panel 7 from the outside; a decorative cover plate 212 is fixedly set on the outer side of the second aluminum alloy inner pressure plate 211.

[0040] By designing a sliding cavity 11 on the side column 1, it is possible to use a unified column profile mold to meet the modeling requirements of different inlet and outlet surfaces, which greatly reduces the demand for molds. At the same time, the glass panel 7 cooperates with the glass groove aluminum 6 to achieve the modeling surface that can be gradually slid and adjusted forward and backward, and the glass panel 7 can be kept evenly stressed, avoiding frequent disassembly and assembly of the glass panel 7 during the positioning process and the self-explosion and breakage caused by uneven stress on the edge of the glass panel 7 due to the problem of tilting forward and backward.

[0041] The glass groove aluminum 6 divides the sliding cavity 11 on the side column 1 into two cavities. The first vertical decorative frame 62 and the second vertical decorative frame 63 are respectively provided on the inner and outer sides of the glass groove aluminum 6. The first vertical decorative frame 62 closes the cavity located on the inner side of the glass groove aluminum 6, and the second vertical decorative frame 63 closes the cavity located on the outer side of the glass groove aluminum 6.

[0042] Specifically, slots 64 are provided on both sides of the glass groove aluminum 6, one end of the first vertical decorative frame 62 is inserted into the slot 64 on the inner side of the glass groove aluminum 6, and the other end of the first vertical decorative frame 62 is clamped on the side column 1; the outer end of the side column 1 is provided with a first aluminum alloy inner pressure plate 12, one end of the second vertical decorative frame 63 is inserted into the slot 64 on the outer side of the glass groove aluminum 6, and the other end of the second vertical decorative frame 63 is fixed to the side column 1 through the first aluminum alloy inner pressure plate 12.

[0043] Furthermore, a reinforcing steel pipe 13 is fixedly disposed in the cavity located inside the glass groove aluminum 6 , and the reinforcing steel pipe 13 is fixed inside the column by countersunk screws, thereby enhancing the structural strength of the side column 1 .

[0044] Further, an outdoor decorative member 121 is fixedly arranged on the outer side of the first aluminum alloy inner pressing plate 12, and an aluminum alloy sealing plate 122 is snap-connected to the inner side of the outdoor decorative member 121. The aluminum alloy sealing plate 122 is used to close the gap between the first aluminum alloy inner pressing plate 12 and the outdoor decorative member 121, and the outer side of the aluminum alloy sealing plate 122 is flush with the outer side of the second vertical decorative frame 63 to ensure the consistency of the curtain wall appearance.

[0045] In this embodiment, a first steel insert core 14 is arranged inside the side column 1, and the first steel insert core 14 is used to connect and fix the adjacent upper and lower side columns 1; a second steel insert core 22 is arranged inside the middle column 2, and the second steel insert core 22 is used to connect and fix the adjacent upper and lower middle columns 2; thereby completing the connection of the adjacent upper and lower side columns 1 and middle columns 2, and at the same time improving the structural strength of the side columns 1 and middle columns 2, making the curtain wall system more stable.

[0046] The present invention also provides a construction method for the above-mentioned slidable semi-assembled polyhedron curtain wall system, which includes the following steps:

[0047] S1. Fix the channel steel adapter 3 on the pre-embedded parts of the building main body 8 by welding; ensure the welding quality to ensure that the channel steel adapter 3 is firmly connected to the building main body 8, providing a stable foundation for the subsequent installation of the side column 1.

[0048] S2. In the workshop, roughly position holes for the finished surface of the glass panel 7 are pre-opened in the sliding cavity 11 of the side column 1, then the glass channel aluminum 6 is placed into the sliding cavity 11, the position of the glass channel aluminum 6 is adjusted and fixed by sliding, the cut first vertical decorative frame 62 and the second vertical decorative frame 63 are respectively snap-connected to both sides of the glass channel aluminum 6 to close the sliding cavity 11, ensure that the sliding cavity 11 is well sealed, and then fix the reinforcing steel pipe 13 in the inner cavity for reinforcement to complete the overall assembly of the side column 1, and then transport it to the construction site.

[0049] The integrally assembled side column 1 is processed and assembled in the workshop, which can improve the assembly accuracy and efficiency and is beneficial to shortening the construction period.

[0050] S3. Fix the first steel insert core 14 in the side column 1, install the assembled side column 1 on the channel steel adapter 3, and cooperate with the horizontal long hole 31 and the adjusting bolt 32 on the channel steel adapter 3 to adjust the position and then fix it.

[0051] S4. After the steel cross beam 5, the second steel insert core 22 and the decorative cover plate 212 are processed in the workshop, they are uniformly transported to the construction site. One end of the steel cross beam 5 is connected and fixed to the side column 1 through a connecting steel part 9, and the other end is welded to the middle column 2. The aluminum back plate 41 is installed on the rear side of the middle column 2 to make the middle column 2 and the steel cross beam 5 not exposed, ensuring the neat appearance of the curtain wall system.

[0052] The processed glass panel 7 with the shape is installed into the glass groove aluminum 6 in sequence according to the numbering order, and the glass is fixed and sealed through the glass rubber strip and the sealant. Then, the glass panel 7 and the middle column 2 are finally trimmed and closed through the decorative cover plate 212.

[0053] Adopting the semi - prefabricated design of the present invention, the side column 1 can be integrally assembled and installed, and components such as the steel cross beam 5 can be completed in advance in the workshop, reducing the workload and construction difficulty at the construction site, improving the construction efficiency, and shortening the construction period.

[0054] The above - mentioned embodiments are only for illustrating the technical concept and characteristics of the present invention. The purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it, and it cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A slidable semi - prefabricated polyhedron curtain wall system, characterized in that: It includes side columns (1), middle columns (2), channel steel adapters (3), steel cross beams (5), glass groove aluminums (6) and glass panels (7); there are two side columns (1), and the two side columns (1) are symmetrically arranged on both sides of the middle column (2). One end of the channel steel adapter (3) is connected to the side column (1), and the other end is connected to the building main body (8); one end of the steel cross beam (5) is fixedly connected to the side column (1), and the other end is fixedly connected to the middle column (2). On the side of the side column (1) close to the middle column (2), a sliding cavity (11) is provided. The glass groove aluminum (6) is slidably arranged in the sliding cavity (11) and is positioned and connected to the side column (1) by countersunk head screws; the glass groove aluminum (6) has a mounting groove (61). One end of the glass panel (7) is inserted into the mounting groove (61) of the glass groove aluminum (6), and the other end of the glass panel (7) is fixedly connected to the outside of the middle column (2).

2. The slidable semi - prefabricated polyhedron curtain wall system according to claim 1, characterized in that: The glass groove aluminum (6) divides the sliding cavity (11) on the side column (1) into two cavities. A first vertical decorative frame (62) and a second vertical decorative frame (63) are respectively arranged on the inner and outer sides of the glass groove aluminum (6). The first vertical decorative frame (62) closes the cavity located inside the glass groove aluminum (6), and the second vertical decorative frame (63) closes the cavity located outside the glass groove aluminum (6).

3. A slidable semi - prefabricated polyhedron curtain wall system according to claim 2, characterized in that: Slots (64) are provided on both sides of the glass groove aluminum (6). One end of the first vertical decorative frame (62) is inserted into the slot (64) inside the glass groove aluminum (6), and the other end of the first vertical decorative frame (62) is clamped on the side column (1); a first aluminum alloy inner pressing plate (12) is arranged at the outer end of the side column (1). One end of the second vertical decorative frame (63) is inserted into the slot (64) outside the glass groove aluminum (6), and the other end of the second vertical decorative frame (63) is fixed on the side column (1) through the first aluminum alloy inner pressing plate (12).

4. A slidable semi - prefabricated polyhedron curtain wall system according to claim 2, characterized in that: A strengthening steel pipe (13) is fixedly arranged inside the cavity located inside the glass groove aluminum (6).

5. A slidable semi - prefabricated polyhedral curtain wall system according to claim 3, characterized in that: An outdoor decorative part (121) is fixedly arranged on the outside of the first aluminum alloy inner pressing plate (12). An aluminum alloy sealing plate (122) is clamped and arranged on the inside of the outdoor decorative part (121). The aluminum alloy sealing plate (122) is used to close the gap between the first aluminum alloy inner pressing plate (12) and the outdoor decorative part (121), and the outside of the aluminum alloy sealing plate (122) is flush with the outside of the second vertical decorative frame (63).

6. A slidable semi - prefabricated polyhedron curtain wall system according to claim 1, characterized in that: A glass attachment frame (21) is fixedly arranged on the outside of the middle column (2). The glass panel (7) is fixed on the glass attachment frame (21) by two-component structural adhesive; a second aluminum alloy inner pressing plate (211) is fixedly arranged on the glass attachment frame (21). The second aluminum alloy inner pressing plate (211) presses the glass panel (7) from the outside; a decorative cover plate (212) is fixedly arranged on the outside of the second aluminum alloy inner pressing plate (211).

7. A slidable semi - prefabricated polyhedron curtain wall system according to claim 1, characterized in that: The steel cross beam (5) is connected and fixed to the side column (1) through an adapter steel piece (9). An aluminum back plate (51) is arranged at the rear side of the steel cross beam (5), and two ends of the aluminum back plate (51) are respectively connected and fixed to adjacent side columns (1).

8. A slidable semi - prefabricated polyhedron curtain wall system according to claim 1, characterized in that: A first steel insert core (14) is arranged inside the side column (1), and the first steel insert core (14) is used for connecting and fixing adjacent upper and lower side columns (1); a second steel insert core (22) is arranged inside the middle column (2), and the second steel insert core (22) is used for connecting and fixing adjacent upper and lower middle columns (2).

9. A slidable semi - prefabricated polyhedron curtain wall system according to claim 1, characterized in that: A horizontal long hole (31) is formed in the channel steel adapter (3), and an adjusting bolt (32) is inserted into the horizontal long hole (31). The adjusting bolt (32) cooperates with the horizontal long hole (31) to adjust the front and rear positions of the side column (1).

10. The construction method of a slidable semi - prefabricated polyhedron curtain wall system according to any one of claims 1 - 9, characterized in that: Comprising the following steps: S1. Fix the channel steel adapter (3) on the pre-embedded part of the building main body (8) by welding; S2. In the workshop, roughly position holes for the finished surface of the glass panel (7) are pre-opened in the sliding cavity (11) of the side column (1). The position of the glass channel aluminum (6) is adjusted and fixed by sliding. The cut first vertical decorative frame (62) and the second vertical decorative frame (63) are respectively clamped on both sides of the glass channel aluminum (6). The sliding cavity (11) is closed, and then a reinforcing steel pipe (13) is fixed in the inner cavity for reinforcement. The overall assembly of the side column (1) is completed and then transported to the construction site; S3. Fix the first steel insert core (14) inside the side column (1). The assembled side column (1) is installed on the channel steel adapter (3), and the position is adjusted and fixed by the cooperation of the horizontal long hole (31) and the adjusting bolt (32) on the channel steel adapter (3); S4. After the steel cross beam (5), the second steel insert core (22) and the decorative cover plate (212) are processed in the workshop, they are uniformly transported to the construction site. One end of the steel cross beam (5) is connected and fixed to the side column (1) through the adapter steel piece (9), and the other end is welded to the middle column (2). An aluminum back plate (41) is installed at the rear side of the middle column (2) to make the middle column (2) and the steel cross beam (5) not exposed; S5. The processed glass panel (7) with a shape is sequentially installed into the glass channel aluminum (6) according to the numbering sequence, and the glass is fixed and sealed through a glass rubber strip and a sealant. Then, the decorative cover plate (212) is used for final edge closing and sealing of the glass panel (7) and the middle column (2).

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