curtain wall midspan support

Abstract

The utility model discloses a curtain wall across middle support relates to building outer dress technical field, and curtain wall across middle support includes board groove formula embedded part, fixed support and fixed hanger, and board groove formula embedded part part sets up in the concrete precast slab, and is outwardly extended with the mounting bolt, and the fixed support is connected in the mounting bolt and is locked through the nut, and the fixed hanger is connected in the side wall of fixed support, and the width direction interval of fixed hanger is equipped with first installation hole and second installation hole, and first installation hole is used to wear fixed bolt and connects fixed support, and second installation hole is used to wear fixed bolt and connects the installation stand, and the distance of fixed hanger relative to the concrete precast slab can be adjustable adjustment to adjust the position of installation stand.

Description

Technical Field

[0001] This utility model relates to the field of building exterior technology, and in particular to a mid-span support for curtain walls. Background Technology

[0002] In the field of construction, unitized curtain walls have been widely used. The unit panels of a unitized curtain wall are pre-assembled in the factory (glass, aluminum, etc.). The installation of the unitized curtain wall with the building structure is achieved by installing it on the connection points arranged on the solid wall surface through connectors.

[0003] The connection structure of the under-support of unitized curtain walls is closely related to the conditions of the main structure. Currently, conventional under-support systems for unitized curtain walls are not suitable for the narrow space between the curtain wall panels and the main structure. The support system on the side of the structural beam is located in the blind spot of sight and operation, which makes construction more difficult and has a lower tolerance for dimensional errors. Utility Model Content

[0004] The main purpose of this utility model is to propose a mid-span support for curtain walls, which aims to improve the convenience of curtain wall installation and construction and increase the dimensional tolerance of curtain wall support installation.

[0005] To achieve the above objectives, the curtain wall mid-span support proposed in this utility model includes:

[0006] A trough-type embedded part, wherein the trough-type embedded part is partially disposed in a precast concrete slab and extends outward with mounting bolts;

[0007] A fixed support is connected to the mounting bolt and locked in place by a nut.

[0008] A fixed bracket is attached to the side wall of the fixed support. The fixed bracket has a first mounting hole and a second mounting hole spaced apart in the width direction. The first mounting hole is used to pass through a fixing bolt to connect to the fixed support, and the second mounting hole is used to pass through a fixing bolt to connect to the mounting column. The distance between the fixed bracket and the precast concrete slab is adjustable to adjust the position of the mounting column.

[0009] In one embodiment, the fixing bracket is a plate-shaped structure, and both opposite sides of the fixing bracket can be connected to the fixing support and the mounting column.

[0010] In one embodiment, the fixing bracket includes a first plate and a second plate, the first plate and the second plate are offset along the thickness direction of the fixing bracket, the first mounting hole is provided in the first plate, and the second mounting hole is provided in the second plate.

[0011] In one embodiment, the first mounting hole and the second mounting hole are circular holes or oblong holes.

[0012] In one embodiment, the curtain wall mid-span support further includes a first pad and a second pad. The mounting bolt passes through the fixed support and the first pad in sequence and is locked with a nut. The fixing bolt passes through the second pad, the fixing bracket, and the fixed support in sequence and is locked with a nut.

[0013] In one embodiment, the first pad, the second pad, the fixed support, and the fixed hanger are all provided with serrated structures. The serrated structure on the first pad engages with the serrated structure on the fixed support, and the serrated structure on the second pad engages with the serrated structure on the fixed hanger.

[0014] In one embodiment, the mounting column is connected to the side of the fixing bracket facing away from the fixing support.

[0015] In one embodiment, the fixed support includes a first fixed plate and a second fixed plate, the second fixed plate being connected to one side of the first fixed plate, the first fixed plate and the second fixed plate being arranged perpendicularly, the first fixed plate being connected to the mounting bolt, and the fixed bracket being connected to the second fixed plate.

[0016] In one embodiment, the mounting column has a limiting portion, the limiting portion has a mounting groove, the fixing bolt passes through the mounting column and the fixing bracket in sequence, the head of the fixing bolt is accommodated in the mounting groove, and the sidewall of the mounting groove can restrict the fixing bolt from rotating in the mounting groove.

[0017] In one embodiment, the fixed support, the fixed bracket, and the mounting column are all aluminum alloy structures.

[0018] This utility model proposes a mid-span support for curtain walls. A grooved embedded part is partially embedded within a precast concrete slab, extending outwards with an installation bolt. This bolt serves both as an anchor and as the mounting base for subsequent components. A fixed support is secured to the installation bolt with a nut, forming the first detachable rigid connection. A fixed bracket, through first and second mounting holes spaced apart along its width, forms the second and third connections with the fixed support and the mounting column, respectively. The first mounting hole positions and fixes the fixed bracket to the fixed support, while the second mounting hole positions and fixes the fixed bracket to the mounting column. By adjusting the mounting position of the fixing bolt in the first and second mounting holes, the distance of the fixed bracket along the normal direction of the precast concrete slab surface can be adjusted, allowing the position of the mounting column to be independently corrected in three-dimensional space. This compensates for dimensional deviations or on-site installation errors generated during the factory prefabrication stage of the precast concrete slab. This adjustable distance mechanism improves the system's fault tolerance, reduces construction complexity, and enhances the error tolerance of curtain wall installation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 A structural schematic diagram of an embodiment of the curtain wall mid-span support provided by this utility model;

[0021] Figure 2 for Figure 1 Side view of the mid-span support of the central curtain wall;

[0022] Figure 3 for Figure 1 Exploded structural diagram of the mid-span support of the central curtain wall;

[0023] Figure 4 This is a schematic diagram of the installation structure of the curtain wall mid-span support structure under negative deviation state according to this utility model.

[0024] Figure 5 This is a schematic diagram of the installation structure of the curtain wall mid-span support structure under positive deviation state according to this utility model;

[0025] Figure 6 This is a schematic diagram of another installation structure of the curtain wall mid-span support structure under positive deviation state according to this utility model.

[0026] Explanation of icon numbers:

[0027] 100. Curtain wall mid-span support; 1. Plate groove type embedded part; 11. Mounting bolt; 2. Fixed support; 21. First fixing plate; 22. Second fixing plate; 3. Fixed hanger; 31. First plate; 31a. First mounting hole; 32. Second plate; 32a. Second mounting hole; 4. Mounting column; 41. Limiting part; 5. First pad; 6. Second pad; 200. Precast concrete slab.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] In the field of construction, unitized curtain walls have been widely used. The unit panels of a unitized curtain wall are pre-assembled in the factory (glass, aluminum, etc.). The installation of the unitized curtain wall with the building structure is achieved by installing it on the connection points arranged on the solid wall surface through connectors.

[0033] The connection structure of the under-support of unitized curtain walls is closely related to the conditions of the main structure. Currently, conventional under-support systems for unitized curtain walls are not suitable for the narrow space between the curtain wall panels and the main structure. The support system on the side of the structural beam is located in the blind spot of sight and operation, which makes construction more difficult and has a lower tolerance for dimensional errors.

[0034] To solve the above problems, please refer to... Figure 1 , Figure 2 , Figure 3 as well as Figure 6This utility model proposes a curtain wall mid-span support 100, including a plate groove type embedded part 1, a fixed support 2, and a fixed hanger 3. The plate groove type embedded part 1 is partially set in the precast concrete slab 200 and extends outward with mounting bolts 11. The fixed support 2 is connected to the mounting bolts 11 and locked with nuts. The fixed hanger 3 is connected to the side wall of the fixed support 2. The fixed hanger 3 has a first mounting hole 31a and a second mounting hole 32a spaced apart in the width direction. The first mounting hole 31a is used to pass through the fixed bolt to connect the fixed support 2, and the second mounting hole 32a is used to pass through the fixed bolt to connect the mounting column 4. The distance between the fixed hanger 3 and the precast concrete slab 200 is adjustable to adjust the position of the mounting column 4.

[0035] The technical solution of this utility model proposes a curtain wall mid-span support 100. A plate groove type embedded part 1 is partially embedded inside the precast concrete slab 200, and an installation bolt 11 extends outward. This bolt serves both as an anchor and as the mounting base shaft for subsequent components. The fixed support 2 is locked onto the installation bolt 11 by a nut, forming the first detachable rigid connection. The fixed hanger 3 forms the second and third connections with the fixed support 2 and the mounting column 4 respectively through the first mounting hole 31a and the second mounting hole 32a arranged at intervals in its width direction. The first mounting hole 31a realizes the positioning and fixing between the fixed hanger 3 and the fixed support 2, and the second mounting hole 32a realizes the positioning and fixing between the fixed hanger 3 and the mounting column 4. By adjusting the installation position of the fixing bolt in the first mounting hole 31a and the second mounting hole 32a, the distance of the fixed hanger 3 along the normal direction of the surface of the precast concrete slab 200 can be adjusted, so that the position of the mounting column 4 can be independently corrected in three-dimensional space, thereby offsetting the dimensional deviation or on-site installation error generated by the precast concrete slab 200 in the factory prefabrication stage. The adjustable distance mechanism improves the system's fault tolerance, reduces construction complexity, and enhances the fault tolerance of curtain wall installation.

[0036] In an optional embodiment, to facilitate the connection and fixation between the fixed support 2, the fixed hanger 3, and the mounting column 4, please refer to... Figure 1 and Figure 6 The fixed bracket 3 is a plate-shaped structure, and both sides of the fixed bracket 3 can be connected to the fixed support 2 and the mounting column 4.

[0037] The plate-like structure allows the thickness dimension of the fixing bracket 3 to be smaller than its planar dimension, reducing its weight while maintaining high planar rigidity. When both sides of the fixing bracket 3 can serve as connection surfaces, a single bracket can achieve bidirectional assembly: it can connect to the fixing support 2 on the left and the mounting column 4 on the right, or it can be installed in reverse. Furthermore, if one side is damaged due to construction collisions, the other side can still be used, improving material utilization. The plate-like structure also facilitates the machining of the first mounting hole 31a and the second mounting hole 32a in a single clamping operation on a CNC machine tool, ensuring hole position accuracy and reducing manufacturing costs.

[0038] In an alternative embodiment, please refer to Figure 1 and Figure 6 The fixing bracket 3 includes a first plate 31 and a second plate 32. The first plate 31 and the second plate 32 are staggered along the thickness direction of the fixing bracket 3. The first mounting hole 31a is provided in the first plate 31 and the second mounting hole 32a is provided in the second plate 32.

[0039] The staggered arrangement forms a stepped cross-section, allowing an adjustable gap to naturally exist between the first plate 31 and the fixed support 2, and between the second plate 32 and the mounting column 4. This gap provides space for the heads, nuts, and washers of the fixing bolts, preventing the bolts from protruding from the plate surface and scratching the curtain wall glass. At the same time, the stepped structure separates the contact surfaces of the fixed support 2 and the mounting column 4, and the staggered height difference can also act as a limiting step. When the mounting column 4 is subjected to wind loads and tends to slip, the side wall of the second plate 32 can be blocked by the end face of the first plate 31, forming a mechanical stop and improving connection safety.

[0040] In an optional embodiment, the first mounting hole 31a and the second mounting hole 32a are circular holes or oblong holes.

[0041] Circular holes are suitable for scenarios requiring high positioning accuracy and no secondary adjustment. The bolts form a complete circumferential contact with the hole wall, ensuring uniform load distribution. Oval holes provide additional freedom in the length direction. When on-site measurements reveal misalignment between the mounting column 4 and adjacent panels, lateral compensation can be achieved by sliding the fixing bolts within the oval holes, eliminating the need for re-drilling. This hole combination balances factory standardization with on-site adjustability. The long axis of the oval holes can be parallel to the long side of the precast concrete slab 200 to absorb panel length errors. Specifically, in this embodiment, both the first mounting hole 31a and the second mounting hole 32a include upper and lower sets to ensure the stability of the curtain wall mid-span support 100 connection. The first mounting hole 31a is an oval hole, while the second mounting hole 32a and the corresponding holes on the fixed support 2 that mate with the fixing bracket 3 are circular holes. The relative distance between the fixing bracket 3 and the precast concrete slab 200 can be adjusted by adjusting the installation position of the fixing bolts within the oval holes. In other embodiments, the first mounting hole 31a and the second mounting hole 32a can both be set as circular holes or oblong holes. When the first mounting hole 31a and the second mounting hole 32a are set as circular holes, it is only necessary to set the hole on the fixed support 2 that corresponds to the fixed hanger 3 as an oblong hole. This can also achieve the adjustment of the distance between the fixed hanger 3 and the precast concrete slab 200. The specific choice can be made according to actual needs.

[0042] In an optional embodiment, to further improve the stability of the connection of the curtain wall mid-span support 100, please refer to... Figure 1 and Figure 6 The curtain wall mid-span support 100 also includes a first pad 5 and a second pad 6. The mounting bolts 11 are sequentially inserted through the fixed support 2 and the first pad 5 and locked with nuts. The fixing bolts are sequentially inserted through the second pad 6, the fixing bracket 3 and the fixed support 2 and locked with nuts.

[0043] The first pad 5 is clamped between the fixed support 2 and the nut; the second pad 6 is clamped between the fixed hanger 3 and the fixed support 2. By setting the first pad 5 and the second pad 6, when the fixed support 2 and the fixed hanger 3 are installed using a bolt structure, the preload can be evenly distributed, avoiding local crushing caused by point contact, and ensuring the stability of the curtain wall mid-span support 100.

[0044] Furthermore, the first pad 5, the second pad 6, the fixed support 2, and the fixed hanger 3 are all provided with serrated structures. The serrated structure on the first pad 5 is engaged with the serrated structure on the fixed support 2, and the serrated structure on the second pad 6 is engaged with the serrated structure on the fixed hanger 3.

[0045] A serrated structure is provided on the contact surfaces of the first pad 5, the second pad 6, the fixed support 2, and the fixed hanger 3, forming a mechanical anti-loosening mechanism through toothed engagement. When a preload is applied to the nut for fixing, the serrated structures on the first pad 5 and the fixed support 2 interlock, and the serrated structures on the second pad 6 and the fixed hanger 3 interlock, generating lateral resistance perpendicular to the bolt axis to prevent fretting slippage caused by vibration or wind load. This structure upgrades the traditional anti-loosening method relying on friction to a shape-locking mechanism, improving connection reliability. When disassembly is required, simply loosening the nut disengages the serrations without damaging the base material, enabling reversible installation. The surface of the serrated structure can be further anodized to increase surface hardness and extend service life.

[0046] In an alternative embodiment, please refer to Figure 1 The mounting column 4 is connected to the side of the fixed bracket 3 facing away from the fixed support 2.

[0047] The mounting column 4 is located on the outside of the precast concrete slab 200, facilitating installation, inspection, and replacement from outside the building. Simultaneously, the fixing support 2 is concealed between the mounting column 4 and the precast concrete slab 200, reducing visual obtrusion and maintaining a clean curtain wall facade. The back-facing arrangement also allows the heads of the fixing bolts to face outdoors, enabling workers to disassemble glass panels directly from the outside without entering the building, minimizing disruption to building use. This helps ensure that the outer surface of the mounting column 4 remains coplanar with adjacent panels, achieving high-precision joints. Furthermore, in this embodiment, the consistent orientation of the fixing bolts ensures that the nuts are all located on the same side of the curtain wall mid-span support 100. This allows for disassembly and assembly of the curtain wall mid-span support 100 from only one side. Positioning the mounting column 4 on the side facing away from the fixing support 2 avoids the nut's location, increasing the operator's maneuverability of the nuts and improving ease of operation. It also facilitates construction in confined spaces, enhancing the operability of the curtain wall mid-span support 100.

[0048] In an optional embodiment, the fixed support 2 includes a first fixed plate 21 and a second fixed plate 22. The second fixed plate 22 is connected to one side of the first fixed plate 21. The first fixed plate 21 and the second fixed plate 22 are arranged vertically. The first fixed plate 21 is connected to the mounting bolt 11, and the fixed bracket 3 is connected to the second fixed plate 22.

[0049] The first fixing plate 21 is arranged along the normal direction of the surface of the precast concrete slab 200 to bear the axial tensile force of the mounting bolts 11; the second fixing plate 22 is arranged along the plane of the curtain wall to bear the lateral wind load transmitted by the mounting column 4. The vertical arrangement ensures independent force paths in the two directions, avoiding stress concentration; the L-shaped section forms a closed moment under load, improving the overall stiffness of the support. A rounded transition can be provided at the connection between the first fixing plate 21 and the second fixing plate 22 to reduce the stress concentration coefficient; simultaneously, this structure can also be formed in one piece through casting or other methods, reducing the risk of welding deformation. By adjusting the relative lengths of the first fixing plate 21 and the second fixing plate 22, it can be adapted to precast slabs of different thicknesses or columns of different specifications, achieving a series design. In this embodiment, the connecting hole on the first fixing plate 21 is an oblong hole to facilitate adjustment of the installation position of the fixing support 2 on the precast concrete slab 200.

[0050] In an alternative embodiment, please refer to Figure 1 The mounting column 4 forms a limiting part 41, and the limiting part 41 forms a mounting groove. The fixing bolt passes through the mounting column 4 and the fixing bracket 3 in sequence. The head of the fixing bolt is accommodated in the mounting groove. The side wall of the mounting groove can restrict the rotation of the fixing bolt in the mounting groove.

[0051] By setting a limiting part 41 and a mounting groove on the mounting column 4, the head of the fixing bolt is hidden in the groove, achieving an integrated effect of anti-rotation and appearance. The outline of the mounting groove is clearance-fitted with the outer outline of the fixing bolt head, usually hexagonal or square, to limit the bolt from rotating with the nut during installation; the groove depth is slightly greater than the bolt head height to ensure that the head does not protrude from the column surface and avoid interference with the glass sub-frame.

[0052] In an optional embodiment, the fixed support, the fixed bracket 3, and the mounting column 4 are all made of aluminum alloy.

[0053] Aluminum alloys possess advantages such as low density, high specific strength, and corrosion resistance. Furthermore, aluminum alloys can be anodized or powder-coated to achieve various surface finishes, matching curtain wall glass or aluminum panel cladding and achieving material integration. In addition, aluminum alloy extrusion processes can form complex cross-sections in a single step, have high recycling rates, and meet green building requirements.

[0054] The following is a detailed description of an embodiment of the curtain wall mid-span support 100 in this scheme:

[0055] Please refer to Figure 1 , Figure 1This is a schematic diagram of the curtain wall mid-span support 100 in normal installation state. The end face of the precast concrete slab 200 is flush with the reference surface. At this time, the first plate 31 on the fixing bracket 3 is connected to the second fixing plate 22 on the fixing support 2, and the first plate 31 is connected to the hole on the second fixing plate 22 away from the first fixing plate 21. The connection position is in the middle of the first mounting hole 31a.

[0056] When the installation foundation of the curtain wall exhibits a negative structural deviation, such as Figure 4 As shown, at this time, the end face of the precast concrete slab 200 is behind the reference surface, that is, the precast concrete slab 200 is concave. The connection position of the first mounting hole 31a and the fixing bolt can be adjusted to move the connection position to the end of the first mounting hole 31a near the first fixing plate 21, so that the position of the fixing bracket 3 is shifted outward to compensate for the dimensional deviation.

[0057] When the installation foundation of the curtain wall exhibits a positive structural deviation, such as Figure 5 As shown, at this time, the end face of the precast concrete slab 200 protrudes from the reference surface, that is, the precast concrete slab 200 bulges outward. The connection position of the first mounting hole 31a and the fixing bolt can be adjusted to move the connection position to the end of the first mounting hole 31a away from the first fixing plate 21, so that the position of the fixing bracket 3 is shifted inward to eliminate the dimensional deviation.

[0058] When the installation foundation of the curtain wall exhibits a positive structural deviation that exceeds the adjustment limit of the first mounting hole 31a, such as Figure 6 As shown, the end face of the precast concrete slab 200 protrudes beyond the reference surface, resulting in a large outward bulge. This can be mitigated by reversing the installation directions of the first plate 31 and the second plate 32. The second plate 32 on the fixing bracket 3 connects to the second fixing plate 22 on the fixing support 2, while the first plate 31 connects to the mounting column 4. The fixing bolts at the mounting column 4 are connected to the end of the first fixing hole near the first fixing plate 21, thus eliminating the dimensional deviation. Since the end of the second fixing plate 22 is relatively long, it may interfere with the fixing bolts at the mounting column 4. This can be addressed by appropriately cutting off a portion of the structure at the end of the second fixing plate 22 to avoid interference. In summary, the structural design of the curtain wall mid-span support 100 in this solution effectively adapts to dimensional deviations during curtain wall installation, improving the convenience and adaptability of the curtain wall mid-span support 100 installation.

[0059] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A mid-span support for curtain walls, characterized in that, include: A trough-type embedded part, wherein the trough-type embedded part is partially disposed in a precast concrete slab and extends outward with mounting bolts; A fixed support is connected to the mounting bolt and locked in place by a nut. A fixed bracket is attached to the side wall of the fixed support. The fixed bracket has a first mounting hole and a second mounting hole spaced apart in the width direction. The first mounting hole is used to pass through a fixing bolt to connect to the fixed support, and the second mounting hole is used to pass through a fixing bolt to connect to the mounting column. The distance between the fixed bracket and the precast concrete slab is adjustable to adjust the position of the mounting column.

2. The curtain wall mid-span support as described in claim 1, characterized in that, The fixing bracket is a plate-shaped structure, and both sides of the fixing bracket can be connected to the fixing support and the mounting column.

3. The curtain wall mid-span support as described in claim 1, characterized in that, The fixing bracket includes a first plate and a second plate, which are offset from each other along the thickness direction of the fixing bracket. The first mounting hole is located in the first plate and the second mounting hole is located in the second plate.

4. The curtain wall mid-span support as described in claim 3, characterized in that, The first mounting hole and the second mounting hole are circular holes or oblong holes.

5. The curtain wall mid-span support as described in any one of claims 1 to 4, characterized in that, The curtain wall mid-span support also includes a first pad and a second pad. The mounting bolts pass through the fixed support and the first pad in sequence and are locked with nuts. The fixing bolts pass through the second pad, the fixing bracket and the fixed support in sequence and are locked with nuts.

6. The curtain wall mid-span support as described in claim 5, characterized in that, The first pad, the second pad, the fixed support, and the fixed hanger are all provided with serrated structures. The serrated structure on the first pad and the fixed support are engaged in a corresponding manner, and the serrated structure on the second pad and the fixed hanger are engaged in a corresponding manner.

7. The curtain wall mid-span support as described in claim 5, characterized in that, The mounting column is connected to the side of the fixing bracket facing away from the fixing support.

8. The curtain wall mid-span support as described in claim 5, characterized in that, The fixed support includes a first fixed plate and a second fixed plate. The second fixed plate is connected to one side of the first fixed plate. The first fixed plate and the second fixed plate are arranged perpendicularly. The first fixed plate is connected to the mounting bolt, and the fixed bracket is connected to the second fixed plate.

9. The curtain wall mid-span support as described in claim 5, characterized in that, The mounting column forms a limiting part, and the limiting part forms a mounting groove. The fixing bolt passes through the mounting column and the fixing bracket in sequence. The head of the fixing bolt is accommodated in the mounting groove. The side wall of the mounting groove can restrict the rotation of the fixing bolt in the mounting groove.

10. The curtain wall mid-span support as described in claim 5, characterized in that, The fixed support, the fixed bracket, and the mounting column are all made of aluminum alloy.

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