An aesthetically pleasing and reliably supported built-in reinforcement bar

Abstract

This utility model discloses an aesthetically pleasing and reliably supported built-in reinforcing mullion. The outer supporting mullion has an inner frame cavity, and a first rigid polyurethane filler is fitted onto the inner wall of this cavity. A first built-in galvanized steel is fitted onto the inner side of the first rigid polyurethane filler. The inner supporting mullion has an inner frame cavity, and a second rigid polyurethane filler is fitted onto the inner wall of this cavity. A second built-in galvanized steel is also fitted onto the inner side of the second rigid polyurethane filler. This utility model, through an aluminum alloy frame composed of the outer and inner supporting mullions, combined with a composite structure of galvanized steel lining and polyurethane filling, achieves a balance between mechanical performance, thermal insulation, and ease of processing. The galvanized steel reinforces key load-bearing components, while the polyurethane optimizes energy saving and comfort, together forming a high-performance door and window support structure.

Description

Technical Field

[0001] This utility model relates to the field of door and window frame structure technology, specifically to an aesthetically pleasing and reliably supported built-in reinforcing mullion. Background Technology

[0002] A mullion is a segmented structure that separates and connects window frames. A window is manufactured as a whole. When the required strength is needed, it is reinforced by horizontal or vertical mullions. When the strength is insufficient, it needs to be spliced ​​from two or more parts, and the mullion is set at the splicing point. To improve the strength of the mullion and reduce its weight, metal mullions are commonly used. Currently, mullions are generally made of aluminum profiles. Because aluminum profiles not only have high strength but also have a lighter weight compared to other materials, they are widely used by various manufacturers. A Chinese patent discloses a reinforced mullion and a window with a reinforced mullion, application number CN201520624742.1. This patent improves the overall strength of the window frame by adding an additional lower mullion.

[0003] However, while current methods of increasing profile rigidity by adding external reinforcing mullions do improve rigidity, the use of aluminum alloy for these additional mullions results in an unsightly protrusion, which is unacceptable to customers. Furthermore, aluminum alloy mullions are more expensive, limiting customer acceptance. Additionally, the screw connection between the inner mullion and the added reinforcing mullions leads to direct contact and potential electrode corrosion. Over time, this can reduce the connection rigidity, affecting overall connection strength and support stability. Utility Model Content

[0004] This utility model provides an aesthetically pleasing and reliably supported built-in reinforcing mullion, which effectively solves the problem mentioned in the background art of improving profile rigidity by using external reinforcing mullions. Although the added mullions improve the rigidity of the profile, the use of aluminum alloy to make the additional external mullions causes the overall appearance of the profile to protrude, resulting in an unsightly appearance that is unacceptable to customers. Furthermore, the use of aluminum alloy to make the mullions is costly, limiting customer acceptance. In addition, the connection between the inner mullion and the added reinforcing mullion is made by screws, resulting in direct contact between them and the phenomenon of electrode corrosion. After long-term use, this will lead to a decrease in the connection rigidity, affecting the overall connection strength and support stability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an aesthetically pleasing and reliably supported built-in reinforcing mullion, comprising an aluminum alloy main profile, an outer supporting mullion at the top of the aluminum alloy main profile, and an inner supporting mullion at the bottom of the aluminum alloy main profile. The outer and inner supporting mullions are respectively snap-fitted to the aluminum alloy main profile, and the outer and inner supporting mullions are symmetrically arranged relative to the aluminum alloy main profile. A frame profile cantilever is connected to the top of the outer supporting mullion, and an extrusion mounting groove is formed on the edge of the frame profile cantilever.

[0006] The outer support mullion has an inner frame cavity, and a first rigid polyurethane filler is fitted to the inner wall of the inner frame cavity. A first built-in galvanized steel is fitted to the inner side of the first rigid polyurethane filler. The inner support mullion has an inner frame cavity, and a second rigid polyurethane filler is fitted to the inner wall of the inner frame cavity. A second built-in galvanized steel is also fitted to the inner side of the second rigid polyurethane filler.

[0007] Preferably, the aluminum alloy main profile is formed by extrusion molding, and its surface is treated with anodizing and electrophoretic coating. The cross-section of the aluminum alloy main profile is rectangular, and its interior has a pre-set cavity.

[0008] Preferably, the cantilevered edge of the frame profile has two extrusion mounting grooves with different inner diameters. The extrusion mounting groove with a larger inner diameter is used for the insertion and installation of the corner piece, and the extrusion mounting groove with a smaller inner diameter is used for the insertion and installation of the adhesive strip.

[0009] Preferably, both the first rigid-filled polyurethane and the second rigid-filled polyurethane have insertion cavities inside, and the first built-in galvanized steel and the second built-in galvanized steel are respectively filled into the corresponding insertion cavities, and the edges of the first built-in galvanized steel and the second built-in galvanized steel are tightly fitted to the inner wall of the corresponding insertion cavity.

[0010] Preferably, the first rigid polyurethane filler is tightly bonded to the inner wall of the cavity inside the outer frame by adhesive bonding, and the first rigid polyurethane filler is tightly fitted to the inner wall of the cavity inside the outer frame.

[0011] Preferably, the second rigid polyurethane filler is tightly bonded to the inner wall of the inner frame cavity by adhesive bonding, and the second rigid polyurethane filler is tightly fitted to the inner wall of the inner frame cavity.

[0012] Preferably, the first built-in galvanized steel and the second built-in galvanized steel are located at the center of the inner cavity of the outer frame and the inner cavity of the inner frame, respectively, and the first built-in galvanized steel and the second built-in galvanized steel are aligned vertically. The outer sides of the first built-in galvanized steel and the second built-in galvanized steel are both treated with galvanizing for rust prevention.

[0013] Preferably, the outer support mullion and the inner support mullion are each connected to a thickened support frame on their opposite sides, and the outer support mullion and the inner support mullion are respectively connected to the aluminum alloy main profile by snap-fitting through the thickened support frame at their respective ends.

[0014] Both sides of the thickened support frame are fixedly connected with protrusions, and two inclined blocks are provided between the two protrusions at the edge of the thickened support frame, and a mating groove is formed between one protrusion and one inclined block.

[0015] The aluminum alloy main profile has snap-fit ​​bending parts at both ends corresponding to the end positions of the thickened support frame, and the ends of the snap-fit ​​bending parts are connected to the docking slots with docking blocks.

[0016] Preferably, the aluminum alloy main profile is connected by a snap-fit ​​bend at its end to a snap-fit ​​groove formed by the snap-fit ​​block and the thickened support frame edge.

[0017] Preferably, the cross-section of the docking block is trapezoidal, the hypotenuse of the docking block is closely fitted with the inner hypotenuse of the protrusion and the hypotenuse, and the bent part of the snap-fit ​​bend is in close contact with the protrusion.

[0018] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.

[0019] 1. By inserting a first rigid polyurethane filler and a second rigid polyurethane filler into the interior of the outer support mullion and the inner support mullion respectively, and by filling the interior of the first rigid polyurethane filler and the second rigid polyurethane filler with a first built-in galvanized steel and a second built-in galvanized steel, the strength of the aluminum alloy main profile is increased by filling with polyurethane and building-in galvanized steel. Furthermore, by replacing the traditional external reinforcing mullion with an aesthetically pleasing and reliable built-in reinforcing mullion, the production cost is reduced, while the appearance of the original profile is not changed, and the overall aesthetics are better.

[0020] Furthermore, the built-in galvanized steel inside the polyurethane filling does not directly contact the profile, thus preventing electrode corrosion and increasing long-term rigidity. In addition, the polyurethane filling is tightly bonded to the outer and inner support mullions and their internal cavities through adhesive bonding, making the stress distribution on the polyurethane filling and the built-in galvanized steel inside more uniform and reliable, further ensuring the strength of the support.

[0021] 2. By using the first and second rigid polyurethane fillers corresponding to the outer and inner support mullions, heat transfer between indoors and outdoors can be effectively blocked, reducing the overall heat transfer coefficient of doors and windows and achieving excellent thermal insulation performance. Furthermore, the first and second rigid polyurethane fillers can effectively absorb vibrations and impacts during the opening and closing of doors and windows, improving user comfort through buffering. Additionally, the polyurethane fillers inside the outer and inner support mullions prevent condensation from forming inside the mullions, reducing noise transmission while achieving a sealed and moisture-proof seal, thus improving actual performance and meeting the needs of current building applications.

[0022] 3. By symmetrically arranging the outer and inner support mullions using aluminum alloy main profiles, the consistency of the force direction of the outer and inner support mullions is ensured, while simultaneously improving the bidirectional support strength of the aluminum alloy main profile. Furthermore, the first rigid polyurethane filler is tightly filled within the outer support mullion, and the second rigid polyurethane filler is tightly filled within the inner support mullion. The first and second built-in galvanized steel are respectively positioned at the internal center of the first and second rigid polyurethane fillers, and their centers are aligned vertically. This ensures that the first and second built-in galvanized steels possess higher support stiffness under load, thereby enhancing the overall rigidity of the profile.

[0023] 4. By setting thickened support frames at the connection ends of the outer and inner support mullions, and combining the protrusions and bevels on the thickened support frames, it is easy to form a docking groove at the edge of the thickened support frame. The snap-fit ​​bending part and docking block at the end of the aluminum alloy main profile facilitate quick alignment and snap-fit ​​connection between the aluminum alloy main profile and the outer and inner support mullions, improving the convenience of connection between the aluminum alloy main profile and the support mullions. The inner wall of the docking groove formed by the protrusions and bevels is provided with bevels, and the docking block is set as a trapezoidal structure to increase the support area of ​​the docking block. Combined with the tight fit between the snap-fit ​​bending part and the protrusion, the support strength of the outer and inner support mullions is effectively improved.

[0024] In summary, the aluminum alloy frame composed of external and internal support mullions, combined with a composite structure of galvanized steel lining and polyurethane filling, achieves a balance between mechanical performance, thermal insulation, and ease of processing. Galvanized steel reinforces key load-bearing components, while polyurethane optimizes energy saving and comfort, together forming the support structure for high-performance doors and windows. Attached Figure Description

[0025] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a front view of the present invention;

[0029] Figure 3 This is a structural schematic diagram of the aluminum alloy main profile of this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the outer support mullion of this utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the inner support mullion of this utility model;

[0032] Figure 6 This is a schematic diagram of a traditional profile with externally reinforced aluminum mullions;

[0033] The following are the labeling elements in the diagram: 1. Aluminum alloy main profile; 2. Outer support mullion; 3. Inner support mullion; 4. Frame profile cantilever; 5. Extruded mounting groove; 6. Outer frame internal cavity; 7. First rigid polyurethane filler; 8. First internal galvanized steel; 9. Inner frame internal cavity; 10. Second rigid polyurethane filler; 11. Second internal galvanized steel; 12. Thickened support frame; 13. Protrusion; 14. Angled block; 15. Butt joint groove; 16. Snap-fit ​​bend; 17. Butt joint block. Detailed Implementation

[0034] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0035] Example: Figure 1-6As shown, this utility model provides a technical solution: an aesthetically pleasing and reliably supported built-in reinforcing mullion, comprising an aluminum alloy main profile 1, an outer supporting mullion 2 at the top of the aluminum alloy main profile 1, and an inner supporting mullion 3 at the bottom of the aluminum alloy main profile 1. The aluminum alloy main profile 1 is formed by extrusion molding, and its surface is treated with anodizing and electrophoretic coating to improve the oxidation resistance and wear resistance of the aluminum alloy main profile 1. The cross-section of the aluminum alloy main profile 1 is rectangular, and its interior has a pre-set cavity for optimizing drainage, installing hardware, and increasing local rigidity. The outer supporting mullion 2 and the inner supporting mullion 3... The mullions 3 are connected to the main aluminum alloy profile 1 by snap-fit. The mullions 2 in the outer support and the mullions 3 in the inner support are symmetrically arranged relative to the main aluminum alloy profile 1. The top of the mullion 2 in the outer support is connected to the frame profile cantilever 4. The edge of the frame profile cantilever 4 has an extrusion mounting groove 5. There are two extrusion mounting grooves 5 on the edge of the frame profile cantilever 4. The inner diameters of the two extrusion mounting grooves 5 are different. The extrusion mounting groove 5 with a larger inner diameter is used for the snap-fit ​​installation of the corner piece, and the extrusion mounting groove 5 with a smaller inner diameter is used for the snap-fit ​​installation of the rubber strip, which facilitates the quick and accurate snap-fit ​​between the corner piece and the rubber strip and the frame profile cantilever 4.

[0036] The outer support mullion 2 has an inner frame cavity 6, and a first rigid polyurethane filler 7 is fitted onto the inner wall of the inner frame cavity 6. A first built-in galvanized steel 8 is fitted onto the inner side of the first rigid polyurethane filler 7. The inner support mullion 3 has an inner frame cavity 9, and a second rigid polyurethane filler 10 is fitted onto the inner wall of the inner frame cavity 9. The first rigid polyurethane filler 7 and the inner wall of the outer frame cavity 6 are tightly bonded together by adhesive. The inner walls of cavity 6 are tightly fitted together. The second rigid polyurethane filler 10 is tightly bonded to the inner wall of the inner frame cavity 9 by adhesive bonding. Furthermore, the tight fit between the second rigid polyurethane filler 10 and the inner wall of the inner frame cavity 9, along with the tight bonding between the polyurethane filler and the inner cavities of the outer support mullion 2 and the inner support mullion 3, ensures more uniform and reliable stress distribution on the polyurethane filler and its inner galvanized steel, further guaranteeing the strength of the support. The inner side of the second rigid polyurethane filler 10 is also fitted and connected by insertion. The first rigid polyurethane filler 7 and the second rigid polyurethane filler 10 each have an insertion cavity. The first and second built-in galvanized steel 8 and the second built-in galvanized steel 11 are respectively filled into the corresponding insertion cavities, and the edges of the first and second built-in galvanized steel 8 and the second built-in galvanized steel 11 are tightly fitted to the inner wall of the corresponding insertion cavity. This facilitates the insertion of the first rigid polyurethane filler 7 and the second rigid polyurethane filler 10 into the inner walls of the outer support mullion 2 and the inner support mullion 3, respectively. The galvanized steel 11 is located at the center of the inner cavity 6 of the outer frame and the inner cavity 9 of the inner frame, respectively. The first galvanized steel 8 and the second galvanized steel 11 are aligned vertically. The outer sides of the first galvanized steel 8 and the second galvanized steel 11 are galvanized for rust prevention, which improves the internal and external bidirectional support strength of the aluminum alloy main profile 1. Combined with the vertical center alignment of the first galvanized steel 8 and the second galvanized steel 11, the first galvanized steel 8 and the second galvanized steel 11 have higher support rigidity when under stress.

[0037] The outer support mullion 2 and the inner support mullion 3 are each connected to a thickened support frame 12 on their opposite sides, and the outer support mullion 2 and the inner support mullion 3 are respectively connected to the aluminum alloy main profile 1 by snap-fitting through the thickened support frame 12 at their respective ends.

[0038] Both sides of the thickened support frame 12 are fixedly connected with protrusions 13, and two inclined blocks 14 are provided between the two protrusions 13 at the edge of the thickened support frame 12, and a mating groove 15 is formed between one protrusion 13 and one inclined block 14.

[0039] At both ends of the aluminum alloy main profile 1, corresponding to the end positions of the thickened support frame 12, there are snap-fit ​​bending portions 16. At the end of the snap-fit ​​bending portion 16, corresponding to the mating groove 15, there is a mating block 17. The mating block 17 has a trapezoidal cross-section, and its inclined sides are tightly fitted with the inner inclined sides of the protrusion 13 and the inclined block 14, respectively. The bent portion of the snap-fit ​​bending portion 16 is in close contact with the protrusion 13. By setting the mating block 17 to a trapezoidal structure, the support area of ​​the mating block 17 is increased. Combined with the tight fit between the snap-fit ​​bending portion 16 and the protrusion 13, the support of the outer support mullion 2 and the inner support is effectively enhanced. The support strength of the mullion 3 is achieved by the aluminum alloy main profile 1 being connected to the outer support mullion 2 and the inner support mullion 3 by the snap-fit ​​bending part 16 at its end and the mating snap-fit ​​block 17 forming the mating snap-fit ​​groove 15 at the edge of the thickened support frame 12. The thickened support frame 12 is provided at the connection end of the outer support mullion 2 and the inner support mullion 3 respectively. Combined with the protrusion 13 and the inclined block 14 provided on the thickened support frame 12, it is easy to form the mating snap-fit ​​groove 15 at the edge of the thickened support frame 12. The snap-fit ​​bending part 16 and the mating snap-fit ​​block 17 at the end of the aluminum alloy main profile 1 facilitate the quick alignment and snap-fit ​​connection between the aluminum alloy main profile 1 and the outer support mullion 2 and the inner support mullion 3.

[0040] The working principle and usage process of this utility model: In the actual application of this built-in reinforced mullion, which is both aesthetically pleasing and reliably supported, it is first necessary to connect the aluminum alloy main profile 1 with the outer support mullion 2 and the inner support mullion 3. In the specific connection process, the connection ends of the outer support mullion 2 and the inner support mullion 3 are respectively provided with thickened support frames 12. Through the protrusions 13 and inclined blocks 14 provided on the thickened support frame 12, it is easy to form a docking groove 15 on the edge of the thickened support frame 12.

[0041] The snap-fit ​​bending part 16 and the docking block 17 at the end of the aluminum alloy main profile 1 facilitate quick alignment and snap-fit ​​connection between the aluminum alloy main profile 1 and the outer support mullion 2 and the inner support mullion 3, improving the convenience of connection between the aluminum alloy main profile 1 and the support mullion. After connection, the inner wall of the docking groove 15 formed by the protrusion 13 and the inclined block 14 is provided with an inclined edge, and the docking block 17 is set with a trapezoidal structure to increase the support area of ​​the docking block 17. Combined with the tight fit between the snap-fit ​​bending part 16 and the protrusion 13, the support strength of the outer support mullion 2 and the inner support mullion 3 is improved.

[0042] After the aluminum alloy main profile 1 is connected to the outer support mullion 2 and the inner support mullion 3 respectively, two extrusion mounting grooves 5 are formed on the side of the frame profile cantilever 4. The inner diameters of the two extrusion mounting grooves 5 are different. The extrusion mounting groove 5 with a larger inner diameter is used for the insertion and installation of the corner piece, and the extrusion mounting groove 5 with a smaller inner diameter is used for the insertion and installation of the rubber strip. This facilitates the quick and accurate connection between the corner piece and the rubber strip and the frame profile cantilever 4.

[0043] Next, after the outer support mullion 2 and the inner support mullion 3 are connected, the interiors of the outer support mullion 2 and the inner support mullion 3 are respectively filled with a first rigid polyurethane filler 7 and a second rigid polyurethane filler 10 in an embedded manner. Furthermore, the interiors of the first rigid polyurethane filler 7 and the second rigid polyurethane filler 10 are respectively filled with a first built-in galvanized steel 8 and a second built-in galvanized steel 11. This increases the strength of the aluminum alloy main profile 1 by filling with polyurethane and building-in galvanized steel, replacing the traditional external reinforcing mullion with an aesthetically pleasing and reliably supporting built-in reinforcing mullion. Traditional external reinforcing mullions, such as... Figure 6 As shown, this reduces production costs without altering the original profile's appearance, resulting in a better overall aesthetic. Its top is reinforced with internal aluminum.

[0044] After the first built-in galvanized steel 8 and the second built-in galvanized steel 11 are filled and connected, the first built-in galvanized steel 8 and the second built-in galvanized steel 11 do not directly contact the profile, and there will be no electrode corrosion. This increases the rigidity for long-term use. Furthermore, the polyurethane filling is tightly bonded to the cavity inside the outer support mullion 2 and the inner support mullion 3 by bonding, making the stress on the polyurethane filling and the built-in galvanized steel inside it more uniform and reliable.

[0045] During the actual support process of the outer support mullion 2 and the inner support mullion 3, the outer support mullion 2 and the inner support mullion 3 are symmetrically arranged with the aluminum alloy main profile 1, so that the force direction of the outer support mullion 2 and the inner support mullion 3 is consistent. Furthermore, the first built-in galvanized steel 8 and the second built-in galvanized steel 11 are respectively placed in the inner center of the first rigid filled polyurethane 7 and the second rigid filled polyurethane 10. The first built-in galvanized steel 8 and the second built-in galvanized steel 11 are aligned in the vertical direction, so that the first built-in galvanized steel 8 and the second built-in galvanized steel 11 have higher support stiffness when under force support, thereby improving the stiffness of the profile.

[0046] In practical use, the first rigid polyurethane filler 7 and the second rigid polyurethane filler 10, which are filled into the outer support mullion 2 and the inner support mullion 3 respectively, can effectively block the conduction of heat between indoors and outdoors, reduce the overall heat transfer coefficient of doors and windows, and achieve excellent thermal insulation performance. The first rigid polyurethane filler 7 and the second rigid polyurethane filler 10 can also effectively absorb the vibration and impact when doors and windows are opened and closed, and improve the comfort of use through buffering. In addition, the polyurethane filling can also prevent condensation from forming inside the mullion. While achieving sealing and moisture prevention, it also reduces the transmission of noise, improves the performance of actual use, and meets the needs of current building use.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An aesthetically pleasing and reliably supported built-in reinforcing bar comprising an aluminium alloy main profile (1), characterised in that: The top of the aluminum alloy main profile (1) is provided with an outer support mullion (2), and the bottom of the aluminum alloy main profile (1) is provided with an inner support mullion (3). The outer support mullion (2) and the inner support mullion (3) are respectively connected to the aluminum alloy main profile (1) by snap-fit. The outer support mullion (2) and the inner support mullion (3) are arranged symmetrically relative to the aluminum alloy main profile (1). The top of the outer support mullion (2) is connected with a frame profile cantilever (4), and the edge of the frame profile cantilever (4) forms an extrusion mounting groove (5). The outer support mullion (2) has an inner frame cavity (6) inside, and a first rigid polyurethane filling (7) is fitted and connected to the inner wall of the inner frame cavity (6). The inner side of the first rigid polyurethane filling (7) is fitted and connected to a first built-in galvanized steel (8) by insertion. The inner support mullion (3) has an inner frame cavity (9) inside, and a second rigid polyurethane filling (10) is fitted and connected to the inner wall of the inner frame cavity (9). The inner side of the second rigid polyurethane filling (10) is also fitted and connected to a second built-in galvanized steel (11) by insertion.

2. An aesthetically pleasing and reliably supported built-in reinforcing shelf in accordance with claim 1, wherein: The aluminum alloy main profile (1) is formed by extrusion molding. Its surface is treated with anodizing and electrophoretic coating. The cross section of the aluminum alloy main profile (1) is rectangular, and its interior has a pre-set cavity.

3. The aesthetically pleasing and reliably supported built-in reinforcement post of claim 1, wherein: The cantilever (4) of the frame profile has two extrusion mounting grooves (5) on its side. The two extrusion mounting grooves (5) have different inner diameters. The extrusion mounting groove (5) with a larger inner diameter is used for the insertion and installation of the corner piece, and the extrusion mounting groove (5) with a smaller inner diameter is used for the insertion and installation of the rubber strip.

4. The aesthetically pleasing and reliably supported built-in reinforcement post of claim 1, wherein: The first rigid polyurethane filling (7) and the second rigid polyurethane filling (10) are both provided with insertion cavities. The first built-in galvanized steel (8) and the second built-in galvanized steel (11) are respectively filled into the corresponding insertion cavities, and the edges of the first built-in galvanized steel (8) and the second built-in galvanized steel (11) are tightly fitted with the inner wall of the corresponding insertion cavity.

5. An aesthetically pleasing and reliably supported built-in reinforcing shelf in accordance with claim 4, wherein: The first rigid polyurethane filling (7) is tightly bonded to the inner wall of the inner cavity (6) of the outer frame by adhesive bonding, and the first rigid polyurethane filling (7) is tightly fitted to the inner wall of the inner cavity (6) of the outer frame.

6. The aesthetically pleasing and reliably supported built-in reinforcement shelf of claim 4, wherein: The second rigid polyurethane filling (10) is tightly bonded to the inner wall of the inner frame cavity (9) by adhesive bonding, and the second rigid polyurethane filling (10) is tightly fitted to the inner wall of the inner frame cavity (9).

7. The aesthetically pleasing and reliably supported built-in reinforcement shelf of claim 1, wherein: The first built-in galvanized steel (8) and the second built-in galvanized steel (11) are located at the center of the inner cavity (6) of the outer frame and the inner cavity (9) of the inner frame, respectively. The first built-in galvanized steel (8) and the second built-in galvanized steel (11) are aligned vertically. The outer sides of the first built-in galvanized steel (8) and the second built-in galvanized steel (11) are treated with galvanizing for rust prevention.

8. The aesthetically pleasing and reliably supported built-in reinforcement post of claim 1, wherein: The outer support mullion (2) and the inner support mullion (3) are each connected to a thickened support frame (12) on their opposite sides, and the outer support mullion (2) and the inner support mullion (3) are respectively connected to the aluminum alloy main profile (1) by the thickened support frame (12) at their respective sides. Both sides of the thickened support frame (12) are fixedly connected with protrusions (13), and two inclined blocks (14) are provided between the two protrusions (13) at the edge of the thickened support frame (12), and a mating groove (15) is formed between one protrusion (13) and one inclined block (14). The aluminum alloy main profile (1) has snap-fit ​​bending parts (16) at both ends corresponding to the end positions of the thickened support frame (12), and the end of the snap-fit ​​bending part (16) is connected to the docking slot (15) with a docking block (17).

9. An aesthetically pleasing and reliably supported built-in reinforcement bar according to claim 8, wherein: The aluminum alloy main profile (1) is connected by a snap-fit ​​bend (16) at its end to a snap-fit ​​groove (15) formed between the snap-fit ​​block (17) and the edge of the thickened support frame (12).

10. The aesthetically pleasing and reliably supported built-in reinforcement post of claim 9, wherein: The cross-section of the docking block (17) is trapezoidal. The hypotenuse of the docking block (17) is closely fitted with the inner hypotenuse of the protrusion (13) and the inclined block (14), respectively. The bent part of the snap-fit ​​bending part (16) is in close contact with the protrusion (13).

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