A lower casement assembly

By using structural beams and back ribs to fix the lower bay window assembly with tie rods, the problem of difficult-to-control bolt hole sealing is solved, achieving stable fixation without drilling and reducing the risk of rainwater leakage.

CN224452248UActive Publication Date: 2026-07-03CHINA CONSTRUCTION SECOND BUREAU (GUANGDONG) CONSTRUCTION CO LTD +1
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-19
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing bay window components, the quality of screw hole sealing is difficult to control when fixing aluminum film panels and bay window panels, resulting in a significant risk of rainwater leakage.

Method used

The bay window panel is supported by structural beams, and the aluminum film panel is fixed by the first and second back ribs and tie rods. This avoids drilling screw holes in the bay window panel and aluminum film panel, and the compression of the back ribs and tie rods reduces the risk of rainwater leakage.

Benefits of technology

There is no need to drill screw holes in the bay window panel and aluminum film panel, which reduces the risk of rainwater leakage and improves the stability and waterproof performance of the components.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224452248U_ABST
    Figure CN224452248U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of building technology and discloses a bay window assembly, comprising: a bay window panel with one side connected to a structural beam on one side in a first direction; a first aluminum foil panel attached to the first side of the bay window panel in a second direction; a second aluminum foil panel attached to the second side of the bay window panel in a second direction; a first back rib attached to the side of the first aluminum foil panel away from the bay window panel, with one end of the first back rib extending beyond the bay window panel and the first aluminum foil panel in the first direction; a second back rib attached to the side of the second aluminum foil panel away from the bay window panel, with one end of the second back rib extending beyond the bay window panel and the second aluminum foil panel in the first direction; and a first tie rod extending along a second direction, passing sequentially through the first and second back ribs. This utility model provides a bay window assembly that can reduce the risk of rainwater leakage.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a bay window component. Background Technology

[0002] During residential construction, rainwater leakage from bay windows is a major challenge in quality control and one of the maintenance items with the highest number of complaints after delivery. To secure the aluminum frame panel and bay window panel, existing lower bay window components have screw holes drilled in both the bay window panel and the aluminum frame panel for tie rods to pass through and fix. These screw holes then need to be sealed, but the quality of the sealing is difficult to control, posing a significant risk of rainwater leakage. Utility Model Content

[0003] The purpose of this invention is to provide a downward-facing window assembly that can reduce the risk of rainwater leakage.

[0004] To achieve the above objectives, this utility model provides a downward-facing window assembly, comprising:

[0005] A structural beam extending along a second direction;

[0006] A bay window panel, the bay window panel extending along a first direction, and one side of the bay window panel in the first direction being connected to one side of the structural beam in the first direction;

[0007] The first aluminum film panel is attached to the first side of the bay window panel in the second direction;

[0008] The second aluminum film panel is attached to the second side of the bay window panel in the second direction;

[0009] The first back rib plate is attached to the side of the first aluminum film plate away from the bay window plate, and one end of the first back rib plate away from the structural beam extends beyond the bay window plate and the first aluminum film plate in a first direction.

[0010] The second back rib is attached to the side of the second aluminum film plate away from the bay window plate, and one end of the second back rib plate away from the structural beam extends beyond the bay window plate and the second aluminum film plate in a first direction.

[0011] The first pair of tie rods extends along the second direction and passes through the first back rib plate and the second back rib plate in sequence.

[0012] Wherein, the first direction and the second direction are perpendicular to each other.

[0013] Preferably, it further includes:

[0014] A fixing screw extends along a second direction and passes through the second back rib plate and is inserted into the second aluminum film plate.

[0015] Preferably, it further includes:

[0016] A side aluminum film panel is attached to the side of the bay window panel away from the structural beam, and the side of the side aluminum film panel away from the bay window panel abuts against the first tie rod.

[0017] Preferably, it further includes:

[0018] The first corner plate is connected between the first aluminum film plate and the side aluminum film plate, and the two ends of the first corner plate abut against the first back rib plate and the first tie rod, respectively.

[0019] The second corner plate is connected between the second aluminum film plate and the side aluminum film plate, and the two ends of the second corner plate abut against the second back rib plate and the first tie rod, respectively.

[0020] Preferably, it further includes:

[0021] The third aluminum film plate is attached to the first side of the structural beam in the first direction;

[0022] The fourth aluminum film plate is attached to the second side of the structural beam in the first direction;

[0023] The third back rib plate is attached to the side of the third aluminum film plate away from the structural beam, and one side of the third back rib plate in the second direction is connected to one side of the first back rib plate in the second direction.

[0024] The fourth back rib plate is attached to the side of the fourth aluminum film plate away from the structural beam, and one side of the fourth back rib plate in the second direction is connected to one side of the second back rib plate in the second direction.

[0025] The second pair of tie rods extends along the first direction and passes sequentially through the third back rib plate, the third aluminum film plate, the structural beam, the fourth aluminum film plate, and the fourth back rib plate.

[0026] Preferably, it further includes:

[0027] A floor slab extending along a first direction, one side of the floor slab in the first direction being connected to a second side of the structural beam in the first direction, the floor slab being located in the second direction of the fourth aluminum film plate and the fourth back rib plate.

[0028] Preferably, it further includes:

[0029] The fifth aluminum film panel is attached to the second side of the structural beam in the first direction, and the fifth aluminum film panel is located in the second direction of the floor slab;

[0030] The third pair of tie rods extends along the first direction and passes sequentially through the third back rib plate, the third aluminum film plate, the structural beam, and the fifth aluminum film plate.

[0031] Preferably, it further includes:

[0032] The first back rib block is installed between the third back rib plate and the third aluminum film plate, and the first back rib block abuts against the third back rib plate and the third aluminum film plate on both sides in the first direction respectively.

[0033] The second back rib block is attached to the side of the fourth back rib plate away from the fourth aluminum film plate.

[0034] The second tie rod passes through the third back rib plate, the first back rib block, the third aluminum film plate, the structural beam, the fourth aluminum film plate, the fourth back rib plate, and the second back rib block in sequence.

[0035] Preferably, it further includes:

[0036] The third back rib block is installed between the third back rib plate and the third aluminum film plate. The third back rib block abuts against the third back rib plate and the third aluminum film plate on both sides in the first direction, and the third back rib block is located in the second direction of the first back rib block.

[0037] The fourth back rib block is attached to the side of the fifth aluminum film plate away from the structural beam.

[0038] The third tie rod passes sequentially through the third back rib plate, the third back rib block, the third aluminum film plate, the structural beam, the fifth aluminum film plate, and the fourth back rib block.

[0039] Preferably, a drip line is provided along the lower edge of the end of the bay window panel away from the structural beam.

[0040] Compared with the prior art, the beneficial effects of this embodiment of the lower bay window component are as follows:

[0041] The structural beam extends along the second direction, and the bay window panel extends along the first direction. One side of the bay window panel in the first direction is connected to one side of the structural beam in the first direction. The structural beam serves to support and fix the bay window panel.

[0042] A first aluminum film plate and a second aluminum film plate are respectively attached to the two sides of the bay window panel in the second direction. A first back rib plate and a second back rib plate are respectively attached to the sides of the first aluminum film plate and the second aluminum film plate away from the bay window panel. The end of the back rib plate away from the structural beam extends beyond the bay window panel and the aluminum film plate in the first direction. A first tie rod extending in the second direction passes through the parts of the two back rib plates that extend beyond the bay window panel and the aluminum film plate to pull them together. The first aluminum film plate, the bay window panel and the second aluminum film plate are fixed by the compression between the first back rib plate and the second back rib plate. Based on the fixed bay window panel, the first aluminum film plate and the second aluminum film plate, there is no need to open screw holes in the bay window panel, the first aluminum film plate and the second aluminum film plate, and there is no need to seal the screw holes, reducing the risk of rainwater leakage of the lower bay window component. Attached Figure Description

[0043] Figure 1 This is a structural schematic diagram of the lower bay window assembly described in an embodiment of this utility model;

[0044] Figure 2 This is a schematic diagram of the assembly structure of the aluminum film plate, bay window plate, structural beam and floor slab in the bay window assembly described in this embodiment of the utility model;

[0045] In the diagram, 1. Structural beam; 2. Bay window panel; 3. Floor slab; 4. First aluminum sheet; 5. Second aluminum sheet; 6. Third aluminum sheet; 7. Fourth aluminum sheet; 8. Fifth aluminum sheet; 9. Side aluminum sheet; 10. First back rib plate; 11. Second back rib plate; 12. Third back rib plate; 13. Fourth back rib plate; 14. First tie rod; 15. Second tie rod; 16. Third tie rod; 17. Fixing rod; 18. First corner plate; 19. Second corner plate; 20. First back rib block; 21. Second back rib block; 22. Third back rib block; 23. Fourth back rib block; 24. Drip line. Detailed Implementation

[0046] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0047] In the description of this utility model, it should be understood that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0048] In the description of this utility model, it should be understood that the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," "longitudinal," "X-axis direction," "Y-axis direction," and "Z-axis direction," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Moreover, some of the above terms, in addition to indicating orientation or positional relationship, may also be used to indicate other meanings; for example, the term "upper" may in some cases be used to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0049] like Figure 1-2 As shown, a lower bay window assembly according to an embodiment of the present utility model includes: a structural beam 1, a bay window panel 2, a first aluminum film panel 4, a second aluminum film panel 5, a first back rib panel 10, a second back rib panel 11, and a first tie rod 14.

[0050] Structural beam 1 extends along the second direction Y;

[0051] The bay window panel 2 extends along the first direction X, and one side of the bay window panel 2 in the first direction X is connected to one side of the structural beam 1 in the first direction X.

[0052] The first aluminum film plate 4 is attached to the first side of the bay window panel 2 in the second direction Y;

[0053] The second aluminum film plate 5 is attached to the second side of the bay window panel 2 in the second direction Y;

[0054] The first back rib plate 10 is attached to the side of the first aluminum film plate 4 away from the bay window plate 2, and the end of the first back rib plate 10 away from the structural beam 1 extends beyond the bay window plate 2 and the first aluminum film plate 4 in the first direction X.

[0055] The second back rib plate 11 is attached to the side of the second aluminum film plate 5 away from the bay window plate 2. The end of the second back rib plate 11 away from the structural beam 1 extends beyond the bay window plate 2 and the second aluminum film plate 5 in the first direction X.

[0056] The first pair of tie rods 14 extends along the second direction Y, and the first pair of tie rods 14 passes through the first back rib plate 10 and the second back rib plate 11 in sequence.

[0057] Among them, the first direction X and the second direction Y are perpendicular to each other.

[0058] It should be noted that the structural beam 1 extends along the second direction Y, and the bay window panel 2 extends along the first direction X. One side of the bay window panel 2 in the first direction X is connected to one side of the structural beam 1 in the first direction X. The structural beam 1 serves to support and fix the bay window panel 2.

[0059] A first aluminum film plate 4 and a second aluminum film plate 5 are respectively attached to the two sides of the bay window panel 2 in the second direction Y. A first back rib plate 10 and a second back rib plate 11 are respectively attached to the sides of the first aluminum film plate 4 and the second aluminum film plate 5 away from the bay window panel 2. The end of the back rib plate away from the structural beam 1 extends beyond the bay window panel 2 and the aluminum film plate in the first direction X. The first tie rod 14 extending along the second direction Y passes through the parts of the two back rib plates that extend beyond the bay window panel 2 and the aluminum film plate to pull them together. The first aluminum film plate 4, the bay window panel 2 and the second aluminum film plate 5 are fixed by the compression between the first back rib plate 10 and the second back rib plate 11. Based on the fixed bay window panel 2, the first aluminum film plate 4 and the second aluminum film plate 5, there is no need to open screw holes on the bay window panel 2, the first aluminum film plate 4 and the second aluminum film plate 5, and there is no need to seal the screw holes, which reduces the risk of rainwater leakage of the lower bay window assembly.

[0060] In this embodiment, it further includes: a fixing screw 17, which extends along the second direction Y and passes through the second back rib plate 11 and is inserted into the second aluminum film plate 5.

[0061] It should be noted that the second back rib plate 11 and the second aluminum film plate 5 are located below the bay window panel 2. The fixing screw 17 passes through the second back rib plate 11 and is inserted into the second aluminum film plate 5 to reinforce the second back rib plate 11 and the second aluminum film plate 5. The fixing screw 17 does not pass through the bay window panel 2, which effectively reduces the risk of rainwater leakage in the bay window panel 2.

[0062] Furthermore, the second aluminum film plate 5 is not only attached to the bottom of the bay window panel 2, but also to the bottom of the structural beam 1, and the screw holes on the second aluminum film plate 5 are opened in the opposite direction of the second direction Y of the structural beam 1.

[0063] In this embodiment, it further includes: a side aluminum film plate 9, which is attached to the side of the bay window panel 2 away from the structural beam 1, and the side of the side aluminum film plate 9 away from the bay window panel 2 abuts against the first tie rod 14.

[0064] It should be noted that a side aluminum film plate 9 is attached to the side of the bay window panel 2 away from the structural beam 1, and the side of the side aluminum film plate 9 away from the bay window panel 2 abuts against the first tie rod 14 to maintain the verticality of the first tie rod 14 and improve the stability of the overall structure.

[0065] In this embodiment, it further includes: a first corner plate 18 and a second corner plate 19. The first corner plate 18 is connected between the first aluminum film plate 4 and the side aluminum film plate 9. The two ends of the first corner plate 18 abut against the first back rib plate 10 and the first tie rod 14, respectively. The second corner plate 19 is connected between the second aluminum film plate 5 and the side aluminum film plate 9. The two ends of the second corner plate 19 abut against the second back rib plate 11 and the first tie rod 14, respectively.

[0066] It should be noted that the first corner plate 18 is connected between the first aluminum film plate 4 and the side aluminum film plate 9, and the two ends of the first corner plate 18 abut against the first back rib plate 10 and the first tie rod 14, respectively. The second corner plate 19 is connected between the second aluminum film plate 5 and the side aluminum film plate 9, and the two ends of the second corner plate 19 abut against the second back rib plate 11 and the first tie rod 14, respectively. This can improve the structural stability between the first aluminum film plate 4, the second aluminum film plate 5, the first back rib plate 10, the second back rib plate 11 and the first tie rod 14.

[0067] Furthermore, the corner plate is made of a waterproof material. Since the first corner plate 18 connects the first aluminum film plate 4 and the side aluminum film plate 9, and the first aluminum film plate 4 is attached to the first side of the bay window slab 2 in the second direction Y, while the side aluminum film plate 9 is attached to the side of the bay window slab 2 away from the structural beam 1, the first corner plate 18 is located at the corner between the first aluminum film plate 4 and the side aluminum film plate 9. The first corner plate 18 is an L-shaped plate, preferably angle iron, which can prevent rainwater from leaking from this corner. The second corner plate 19 is similar.

[0068] In this embodiment, it further includes: a third aluminum film plate 6, a fourth aluminum film plate 7, a third back rib plate 12, a fourth back rib plate 13, and a second tie rod 15;

[0069] The third aluminum film plate 6 is attached to the first side of the structural beam 1 in the first direction X;

[0070] The fourth aluminum film plate 7 is attached to the second side of the structural beam 1 in the first direction X;

[0071] The third back rib plate 12 is attached to the side of the third aluminum film plate 6 away from the structural beam 1, and one side of the third back rib plate 12 in the second direction Y is connected to one side of the first back rib plate 10 in the second direction Y.

[0072] The fourth back rib plate 13 is attached to the side of the fourth aluminum film plate 7 away from the structural beam 1, and one side of the fourth back rib plate 13 in the second direction Y is connected to one side of the second back rib plate 11 in the second direction Y.

[0073] The second tie rod 15 extends along the first direction X and passes through the third back rib plate 12, the third aluminum film plate 6, the structural beam 1, the fourth aluminum film plate 7 and the fourth back rib plate 13 in sequence.

[0074] It should be noted that, in order to prevent the surface of the structural beam 1 from being eroded by rainwater, a third aluminum film plate 6 and a fourth aluminum film plate 7 are respectively attached to the two sides of the structural beam 1 in the first direction X. The third back rib plate 12 is attached to the side of the third aluminum film plate 6 away from the structural beam 1, and the fourth back rib plate 13 is attached to the side of the fourth aluminum film plate 7 away from the structural beam 1. The second tie rod 15 extending along the first direction X passes through the third back rib plate 12, the third aluminum film plate 6, the structural beam 1, the fourth aluminum film plate 7 and the fourth back rib plate 13 in sequence for tie fixing.

[0075] Since the third back rib plate 12 is connected to one side of the first back rib plate 10 in the second direction Y, and the fourth back rib plate 13 is connected to one side of the second back rib plate 11 in the second direction Y, the third back rib plate 12 and the first back rib plate 10 are an integral structure, and the fourth back rib plate 13 and the second back rib plate 11 are an integral structure, which together can stably fix the structural beam 1, the bay window plate 2 and the aluminum film plate.

[0076] Furthermore, the first aluminum film plate 4 and the third aluminum film plate 6 are connected by a corner plate, and the second aluminum film plate 5 and the fourth aluminum film plate 7 are connected by a corner plate.

[0077] It should be noted that by adding the first back rib block 20 between the third back rib plate 12 and the third aluminum film plate 6, and attaching the second back rib block 21 to the side of the fourth back rib plate 13 away from the fourth aluminum film plate 7, the second tie rod 15 passes through the third back rib plate 12, the first back rib block 20, the third aluminum film plate 6, the structural beam 1, the fourth aluminum film plate 7, the fourth back rib plate 13 and the second back rib block 21 in sequence, which can improve the rigidity and stability of the structure.

[0078] In this embodiment, it further includes: a floor slab 3, which extends along the first direction X, and one side of the floor slab 3 in the first direction X is connected to the second side of the structural beam 1 in the first direction X. The floor slab 3 is located in the second direction Y of the fourth aluminum film plate 7 and the fourth back rib plate 13.

[0079] It should be noted that one side of the floor slab 3 in the first direction X is connected to the second side of the structural beam 1 in the first direction X. The floor slab 3 is located in the second direction Y of the fourth aluminum film plate 7 and the fourth back rib plate 13, so as to avoid blocking the connection between the fourth aluminum film plate 7 and the second aluminum film plate 5, and to avoid blocking the connection between the fourth back rib plate 13 and the second back rib plate 11.

[0080] In this embodiment, it further includes: a fifth aluminum film plate 8 and a third tie rod 16;

[0081] The fifth aluminum film plate 8 is attached to the second side of the structural beam 1 in the first direction X, and the fifth aluminum film plate 8 is located in the second direction Y of the floor slab 3.

[0082] The third tie rod 16 extends along the first direction X and passes through the third back rib plate 12, the third aluminum film plate 6, the structural beam 1 and the fifth aluminum film plate 8 in sequence.

[0083] It should be noted that a fifth aluminum film plate 8 is set on the second direction Y of the floor slab 3 and the fifth aluminum film plate 8 is attached to the second side of the structural beam 1 in the first direction X. The third tie rod 16 extending along the first direction X passes through the third back rib plate 12, the third aluminum film plate 6, the structural beam 1 and the fifth aluminum film plate 8 in sequence to fix the third back rib plate 12, the third aluminum film plate 6, the fifth aluminum film plate 8 and the bay window plate 2.

[0084] In this embodiment, it further includes: a first back rib block 20 and a second back rib block 21;

[0085] The first back rib block 20 is installed between the third back rib plate 12 and the third aluminum film plate 6. The first back rib block 20 abuts against the third back rib plate 12 and the third aluminum film plate 6 on both sides in the first direction X.

[0086] The second back rib block 21 is attached to the side of the fourth back rib plate 13 away from the fourth aluminum film plate 7.

[0087] The second tie rod 15 passes sequentially through the third back rib plate 12, the first back rib block 20, the third aluminum film plate 6, the structural beam 1, the fourth aluminum film plate 7, the fourth back rib plate 13, and the second back rib block 21.

[0088] In this embodiment, it further includes: a third back rib block 22 and a fourth back rib block 23;

[0089] The third back rib block 22 is installed between the third back rib plate 12 and the third aluminum film plate 6. The third back rib block 22 abuts against the third back rib plate 12 and the third aluminum film plate 6 on both sides in the first direction X, and the third back rib block 22 is located in the second direction Y of the first back rib block 20.

[0090] The fourth back rib block 23 is attached to the side of the fifth aluminum film plate 8 away from the structural beam 1;

[0091] The third tie rod 16 passes sequentially through the third back rib plate 12, the third back rib block 22, the third aluminum film plate 6, the structural beam 1, the fifth aluminum film plate 8, and the fourth back rib block 23.

[0092] It should be noted that adding a third back rib block 22 between the third back rib plate 12 and the third aluminum film plate 6 and located in the second direction Y of the first back rib block 20, and attaching the fourth back rib block 23 to the side of the fifth aluminum film plate 8 away from the structural beam 1, and allowing the second tie rod 15 to pass through the third back rib plate 12, the third back rib block 22, the third aluminum film plate 6, the structural beam 1, the fifth aluminum film plate 8, and the fourth back rib block 23 in sequence, can improve the rigidity and stability of the structure.

[0093] In this embodiment, a drip line 24 is further provided on the lower edge of the end of the bay window panel 2 away from the structural beam 1.

[0094] It should be noted that a drip line 24 is installed at the lower edge of the end of the bay window slab 2 away from the structural beam 1 to force rainwater to drip vertically under the action of gravity, thereby preventing rainwater from flowing along the bay window slab 2 to the joint and reducing the risk of rainwater leakage.

[0095] The working process of this utility model is as follows: the structural beam 1 extends along the second direction Y, the bay window panel 2 extends along the first direction X, and one side of the bay window panel 2 in the first direction X is connected to one side of the structural beam 1 in the first direction X. The structural beam 1 plays the role of supporting and fixing the bay window panel 2.

[0096] A first aluminum film plate 4 and a second aluminum film plate 5 are respectively attached to the two sides of the bay window panel 2 in the second direction Y. A first back rib plate 10 and a second back rib plate 11 are respectively attached to the sides of the first aluminum film plate 4 and the second aluminum film plate 5 away from the bay window panel 2. The end of the back rib plate away from the structural beam 1 extends beyond the bay window panel 2 and the aluminum film plate in the first direction X. The first tie rod 14 extending along the second direction Y passes through the parts of the two back rib plates that extend beyond the bay window panel 2 and the aluminum film plate to pull them together. The first aluminum film plate 4, the bay window panel 2 and the second aluminum film plate 5 are fixed by the compression between the first back rib plate 10 and the second back rib plate 11. Based on the fixed bay window panel 2, the first aluminum film plate 4 and the second aluminum film plate 5, there is no need to open screw holes on the bay window panel 2, the first aluminum film plate 4 and the second aluminum film plate 5, and there is no need to seal the screw holes, which reduces the risk of rainwater leakage of the lower bay window assembly.

[0097] In summary, this utility model provides a downward-facing window assembly that can reduce the risk of rainwater leakage.

[0098] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A lower casement assembly characterized by, include: Structural beam (1), the structural beam (1) extending along a second direction; A bay window panel (2) extends along a first direction, and one side of the bay window panel (2) in the first direction is connected to one side of the structural beam (1) in the first direction. The first aluminum film plate (4) is attached to the first side of the bay window panel (2) in the second direction; The second aluminum film plate (5) is attached to the second side of the bay window panel (2) in the second direction; The first back rib plate (10) is attached to the side of the first aluminum film plate (4) away from the bay window plate (2), and one end of the first back rib plate (10) away from the structural beam (1) extends beyond the bay window plate (2) and the first aluminum film plate (4) in a first direction. The second back rib plate (11) is attached to the side of the second aluminum film plate (5) away from the bay window plate (2), and one end of the second back rib plate (11) away from the structural beam (1) extends beyond the bay window plate (2) and the second aluminum film plate (5) in a first direction. The first pair of pull screws (14) extends along the second direction and passes through the first back rib plate (10) and the second back rib plate (11) in sequence; Wherein, the first direction and the second direction are perpendicular to each other.

2. The lower casement assembly of claim 1, wherein, Also includes: A fixing screw (17) extends along a second direction and passes through the second back rib plate (11) and is inserted into the second aluminum film plate (5).

3. The lower casement assembly of claim 1, wherein, Also includes: A side aluminum film panel (9) is attached to the side of the bay window panel (2) away from the structural beam (1), and the side of the side aluminum film panel (9) away from the bay window panel (2) abuts against the first tie rod (14).

4. The lower casement assembly of claim 3, wherein, Also includes: The first corner plate (18) is connected between the first aluminum film plate (4) and the side aluminum film plate (9). The two ends of the first corner plate (18) abut against the first back rib plate (10) and the first tie rod (14) respectively. The second corner plate (19) is connected between the second aluminum film plate (5) and the side aluminum film plate (9). The two ends of the second corner plate (19) abut against the second back rib plate (11) and the first tie rod (14), respectively.

5. The lower casement assembly of claim 1, wherein, Also includes: The third aluminum film plate (6) is attached to the first side of the structural beam (1) in the first direction; A fourth aluminum film plate (7) is attached to the second side of the structural beam (1) in the first direction; The third back rib plate (12) is attached to the side of the third aluminum film plate (6) away from the structural beam (1), and the third back rib plate (12) is connected to one side of the first back rib plate (10) in the second direction on one side in the second direction. The fourth back rib plate (13) is attached to the side of the fourth aluminum film plate (7) away from the structural beam (1), and the side of the fourth back rib plate (13) in the second direction is connected to the side of the second back rib plate (11) in the second direction. The second pair of tie rods (15) extends along the first direction and passes through the third back rib plate (12), the third aluminum film plate (6), the structural beam (1), the fourth aluminum film plate (7) and the fourth back rib plate (13) in sequence.

6. The lower casement assembly of claim 5, wherein, Also includes: The floor slab extends along a first direction, and one side of the floor slab in the first direction is connected to the second side of the structural beam (1) in the first direction. The floor slab is located in the second direction of the fourth aluminum film plate (7) and the fourth back rib plate (13).

7. The lower casement assembly of claim 6, wherein, Also includes: The fifth aluminum film panel (8) is attached to the second side of the structural beam (1) in the first direction, and the fifth aluminum film panel (8) is located in the second direction of the floor slab; The third pair of tie rods (16) extends along the first direction and passes through the third back rib plate (12), the third aluminum film plate (6), the structural beam (1) and the fifth aluminum film plate (8) in sequence.

8. The lower casement assembly of claim 7, wherein, Also includes: The first back rib block (20) is installed between the third back rib plate (12) and the third aluminum film plate (6). The first back rib block (20) abuts against the third back rib plate (12) and the third aluminum film plate (6) on both sides in the first direction. The second back rib block (21) is attached to the side of the fourth back rib plate (13) away from the fourth aluminum film plate (7); The second tie rod (15) passes through the third back rib plate (12), the first back rib block (20), the third aluminum film plate (6), the structural beam (1), the fourth aluminum film plate (7), the fourth back rib plate (13), and the second back rib block (21) in sequence.

9. The lower casement assembly of claim 8, wherein, Also includes: The third back rib block (22) is installed between the third back rib plate (12) and the third aluminum film plate (6). The third back rib block (22) abuts against the third back rib plate (12) and the third aluminum film plate (6) on both sides in the first direction. The third back rib block (22) is located in the second direction of the first back rib block (20). The fourth back rib (23) is attached to the side of the fifth aluminum film plate (8) away from the structural beam (1); The third tie rod (16) passes through the third back rib plate (12), the third back rib block (22), the third aluminum film plate (6), the structural beam (1), the fifth aluminum film plate (8), and the fourth back rib block (23) in sequence.

10. The lower casement assembly of claim 1, wherein, A drip line (24) is provided at the lower edge of the end of the bay window panel (2) away from the structural beam (1).