Inner bay window structure

Abstract

The utility model belongs to the technical field of constructional engineering, and discloses an inner bay window structure. The inner bay window structure is arranged on a building outer wall, a first reserved tongue-and-groove extending in the horizontal direction is formed in the inner side of the building outer wall, and the extending length of the first reserved tongue-and-groove is smaller than the width of the building outer wall; the inner bay window structure comprises an inner wall, the inner wall is arranged on the inner side of the building outer wall in parallel, the side, close to the building outer wall, of the inner wall is provided with a second reserved tongue-and-groove which is the same as the first reserved tongue-and-groove in the horizontal height, and the second reserved tongue-and-groove and the first reserved tongue-and-groove are oppositely arranged; the bay window cover plate is at least partially erected on the first reserved rabbet and the second reserved rabbet. According to the bay window cover plate, through the arrangement of the first reserved rabbet and the second reserved rabbet, position support is provided for installation of the bay window cover plate, additional arrangement of a lifting lug is not needed, the construction complexity is reduced, the construction cost is saved, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building engineering, and specifically relates to an inner bay window structure. Background Art

[0002] There are two types of bay windows: inner bay windows and outer bay windows. An inner bay window is usually made of window glass on one side and walls on the two sides. It is safer than an outer bay window with window glass on three sides and can be modified according to actual decoration needs. Therefore, inner bay windows are widely used in architectural design.

[0003] The Chinese patent application number 202021149507.0 discloses a connection structure of a prefabricated concrete bay window cover plate, including a prefabricated bay window, a bay window upper beam and a prefabricated bay window cover plate. The prefabricated bay window is provided with a cantilever extending horizontally toward one side of the bay window upper beam in the length direction, and the upper end of the bay window upper beam is provided with a tongue close to the prefabricated bay window. One side of the prefabricated bay window cover plate is horizontally overlapped on the cantilever of the prefabricated bay window, and the other side is horizontally overlapped in the tongue of the bay window upper beam, and the two sides of the prefabricated bay window cover plate are respectively bonded to the cantilever and the tongue through a cement mortar leveling layer. The above-mentioned application scheme requires additional cantilever to overlap the bay window cover plate, which not only leads to a large construction workload, but also requires a large construction cost due to the extension of the cement and steel structure, and also prolongs the construction period due to the cumbersome steps.

[0004] Therefore, there is an urgent need to provide an internal bay window structure that overcomes the above-mentioned problems, does not require the provision of cantilever ears, has lower construction costs, and has lower construction difficulty and construction workload.

[0005] In view of this, this application is hereby filed. Utility Model Content

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an inner bay window structure with lower construction cost, construction difficulty and construction workload.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is: an inner bay window structure is arranged on the outer wall of a building, and a first reserved groove extending in the horizontal direction is arranged on the inner side of the outer wall of the building, and the extension length of the first reserved groove is less than the width of the outer wall of the building;

[0008] The inner bay window structure comprises:

[0009] An inner wall, the inner wall is arranged parallel to the inner side of the outer wall of the building, a second reserved groove having the same horizontal height as the first reserved groove is arranged on a side of the inner wall close to the outer wall of the building, and the second reserved groove is arranged opposite to the first reserved groove;

[0010] A bay window cover plate, wherein the bay window cover plate is at least partially mounted on the first reserved tongue and the second reserved tongue.

[0011] According to an implementation manner of the utility model, a certain distance is spaced between the sides of the building outer wall and the inner wall that are close to each other.

[0012] According to an embodiment of the present utility model, the width of the bay window cover is smaller than the distance between the first reserved tongue and the second reserved tongue;

[0013] When the bay window cover is installed on the exterior wall and the interior wall of the building, there is a gap between the bay window cover and the first reserved tongue and groove and / or the second reserved tongue and groove.

[0014] According to one embodiment of the utility model, the gap is filled and compacted by using foam glue and / or cement-based grouting.

[0015] According to an embodiment of the present utility model, the first reserved tongue and groove and the second reserved tongue and groove have the same depth in the vertical direction and are the same as the thickness of the bay window cover.

[0016] According to one embodiment of the utility model, along the length direction of the bay window cover, the extension length of the first reserved tongue and groove in the horizontal direction is smaller than the extension length of the second reserved tongue and groove in the horizontal direction.

[0017] According to one embodiment of the utility model, along the width direction of the bay window cover, the extension length of the first reserved tongue and groove in the horizontal direction is greater than the extension length of the second reserved tongue and groove in the horizontal direction.

[0018] According to one embodiment of the present utility model, the bay window cover comprises:

[0019] A cover plate body, wherein the cover plate body is a square structure, and one side of the cover plate body is at least partially placed on the second reserved groove;

[0020] The protrusion is a cubic structural member having the same thickness as the cover body, the protrusion is connected to a side of the cover body away from the first reserved groove, the length of the protrusion is smaller than the length of the cover body, and the protrusion is at least partially placed on the first reserved groove.

[0021] According to an embodiment of the present utility model, the bay window cover includes a first cover and a second cover, and the first cover and the second cover are arranged along the width direction of the bay window cover;

[0022] The projections of the first cover plate and the second cover plate in a length direction parallel to the bay window cover plate overlap, and the projection areas of the first cover plate and the second cover plate in a thickness direction parallel to the bay window cover plate are equal.

[0023] According to an embodiment of the present utility model, the bay window cover plate further includes a third cover plate, and the third cover plate is arranged between the first cover plate and the second cover plate;

[0024] Along the length direction of the bay window cover plate, the projections of the third cover plate overlap with those of the first cover plate and the second cover plate.

[0025] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0026] 1) In the present invention, by providing the first reserved tongue and the second reserved tongue, a position support is provided for the installation of the bay window cover plate, and no additional ears are required, which reduces the complexity of construction, saves construction costs, and improves construction efficiency;

[0027] 2) In the present invention, by leaving a gap margin, the difficulty of erection and installation can be reduced and the construction efficiency can be improved; at the same time, the sealing of the entire interior of the bay window can be ensured, thereby preventing condensation water from entering the interior of the bay window.

[0028] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0030] Figure 1 This is a partial structural schematic diagram of an inner bay window structure in an embodiment of the utility model;

[0031] Figure 2 This is a structural schematic diagram of a bay window cover in an embodiment of the utility model;

[0032] Figure 3 This is a structural schematic diagram of an inner bay window structure in an embodiment of the utility model;

[0033] Figure 4 This is a structural schematic diagram of another bay window cover in an embodiment of the utility model;

[0034] Figure 5 This is a structural schematic diagram of another bay window cover in an embodiment of the utility model;

[0035] Figure 6 It is a schematic structural diagram of another bay window cover in an embodiment of the utility model.

[0036] Description of the main components in the figure:

[0037] 1. Building exterior wall; 11. First reserved tongue and groove; 2. Interior wall; 21. Second reserved tongue and groove; 3. Bay window cover; 30. Cover body; 31. Protrusion; 32. First cover; 33. Second cover; 34. Third cover.

[0038] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figures 1 to 6 As shown, an inner bay window structure of the utility model is arranged on an outer wall 1 of a building, and a first reserved groove 11 extending in a horizontal direction is arranged on the inner side of the outer wall 1 of the building, and the extension length of the first reserved groove 11 is less than the width of the outer wall 1 of the building;

[0043] The inner bay window structure comprises:

[0044] An inner wall 2, the inner wall 2 is arranged parallel to the inner side of the building outer wall 1, and a second reserved groove 21 having the same horizontal height as the first reserved groove 11 is arranged on a side of the inner wall 2 close to the building outer wall 1, and the second reserved groove 21 is arranged opposite to the first reserved groove 11;

[0045] The bay window cover plate 3 is at least partially mounted on the first reserved tongue and groove 11 and the second reserved tongue and groove 21 .

[0046] In the utility model, by setting the first reserved tongue and groove 11 and the second reserved tongue and groove 21, position support is provided for the installation of the bay window cover 3, and the support position is preset, and there is no need to set additional ears, which reduces the complexity of construction, saves construction costs, and improves construction efficiency.

[0047] Please refer to the attached Figure 1 and attached Figure 3 In a specific implementation of this embodiment, a window installation position is provided on the building exterior wall 1, and the lower side of the window installation position is a window edge. The first reserved groove 11 is a receiving groove on the window edge that is recessed downward (toward the building layer board) and inward (toward the inner wall 2). The building layer board refers to the floor slab on the bottom side.

[0048] Please refer to the attached Figure 1 and attached Figure 3 In a specific implementation of this embodiment, the two sides of the inner wall 2 are connected to the surrounding walls of the building (not marked in the figure), and the inner wall 2 is set on the building layer board. The height of the top of the inner wall 2 is the same as the horizontal height of the window edge, and the second reserved groove 21 is a groove that is concave downward (toward the building layer board) and inward (toward the direction close to the building outer wall 1) at the top of the inner wall 2.

[0049] In a specific implementation of this embodiment, the downward extension direction (toward the building layer board) of the first reserved groove 11 and / or the second reserved groove 21 is perpendicular to its inward extension direction (toward the reserved groove near the other side).

[0050] In a specific implementation of this embodiment, the downward extension direction (toward the building layer board) of the first reserved groove 11 and / or the second reserved groove 21 is at a certain angle to the vertical direction (for example, +5°, of course, it can also be other degrees, such as -6° / +10°); accordingly, the side edge of the corresponding side of the bay window cover 3 corresponds to the corresponding angle (for example, -5°, of course, it can also be other degrees, such as +6° / -10°). It should be pointed out that the clockwise angle with the corresponding reference direction is +, and the counterclockwise angle is -.

[0051] In a specific implementation of this embodiment, the inward extension direction of the first reserved groove 11 and / or the second reserved groove 21 (toward the direction close to the reserved groove on the other side) is at a certain angle to the horizontal direction (for example, +5°, of course, it can also be other degrees, such as -6° / +10°); accordingly, the side edge of the corresponding side of the bay window cover 3 corresponds to the corresponding angle (for example, -5°, of course, it can also be other degrees, such as +6° / -10°). It should be pointed out that the clockwise angle with the corresponding reference direction is +, and the counterclockwise angle is -.

[0052] In a specific implementation of this embodiment, the distance between the window edge of the building exterior wall 1 and the top end of the interior wall 2 and the building layer board (the floor board on the bottom side) is 700 mm.

[0053] In a specific implementation of this embodiment, the dimensions of the first reserved groove 11 are: 80 mm in width, 100 mm in height, and the same length as the window edge.

[0054] In a specific implementation of this embodiment, the dimensions of the second reserved groove 21 are: 50 mm in width, 100 mm in height, and the length is the same as the length of the inner wall.

[0055] Please refer to the attached Figure 1 and attached Figure 3 In a specific implementation of this embodiment, a certain distance is spaced between the sides of the building exterior wall 1 and the interior wall 2 that are close to each other.

[0056] It can be understood that the building exterior wall 1 and the interior wall 2, the building perimeter walls and the building layer panels are arranged to form a cubic building component with an open upper end and a hollow interior, and the bay window cover 3 is arranged on the upper opening to close the cubic building component.

[0057] In a specific implementation of this embodiment, the bay window cover 3 is set up on the building exterior wall 1 and the interior wall 2, that is, the frame construction of the interior bay window structure is completed; in another specific implementation of this embodiment, before the bay window cover 3 is set up on the building exterior wall 1 and the interior wall 2, it is necessary to add filling materials in advance to the square building member that is open at the top and hollow inside. The filling materials can be one or more of bricks, cement, and sand.

[0058] Please refer to the attached Figure 1 To Attachment Figure 6 In a specific implementation of the present embodiment, the length of the bay window cover 3 on the side facing the building exterior wall 1 is less than the length of the bay window cover 3 on the side facing the interior wall 2.

[0059] It can be understood that the length of the bay window cover 3 on the side facing the building exterior wall 1 is the length of the window edge in the horizontal direction; because the length of the window is smaller than the length of the building exterior wall 1, and the length of the interior wall 2 is the same or approximately the same as the length of the building exterior wall 1, therefore, the length of the bay window cover 3 on the side facing the building exterior wall 1 is smaller than the length of the bay window cover 3 on the side facing the interior wall 2.

[0060] In a specific implementation of this embodiment, the width of the bay window cover 3 is less than the distance between the opposite sides of the first reserved tongue and groove 11 and the second reserved tongue and groove 21. It can be understood that when the bay window cover 3 is set on the building exterior wall 1 and the interior wall 2, the bay window cover 3 does not completely occupy the first reserved tongue and groove 11 and / or the second reserved tongue and groove 21. That is, when the bay window cover 3 is set on the building exterior wall 1 and the interior wall 2, there is a gap between the bay window cover 3 and the first reserved tongue and groove 11 and / or the second reserved tongue and groove 21.

[0061] In a specific implementation of this embodiment, the gap between the bay window cover plate 3 and the first reserved groove 11 and the second reserved groove 21 is filled and compacted by cement-based grouting.

[0062] In a specific implementation of this embodiment, the bay window cover plate 3 is prefabricated on site near the bay window to facilitate later installation.

[0063] In the utility model, through the above-mentioned arrangement, a gap margin is left, which can reduce the difficulty of erection and installation and improve construction efficiency. At the same time, it can also ensure the overall sealing of the interior of the bay window, block condensation on the window or water splashed from the outside, and prevent condensation from entering the interior of the bay window.

[0064] Please refer to the attached Figure 1 and attached Figure 3In a specific implementation of this embodiment, the first reserved groove 11 and the second reserved groove 21 have the same depth in the vertical direction, and are the same thickness as the bay window cover 3 (in the vertical direction). It can be understood that after the bay window cover 3 is erected on the building exterior wall 1 and the interior wall 2, the lower end of the bay window cover 3, the lower side of the first reserved groove 11 and the lower side of the second reserved groove 21 are at the same height; after the bay window cover 3 is erected on the building exterior wall 1 and the interior wall 2, the top of the bay window cover 3, the window edge and the top of the interior wall 2 are on the same horizontal plane.

[0065] Please refer to the attached Figure 1 , Attachment Figure 2 and attached Figure 3 In a specific implementation of the present embodiment, along the length direction of the bay window cover 3, the extension length of the first reserved tongue and groove 11 in the horizontal direction is smaller than the extension length of the second reserved tongue and groove 21 in the horizontal direction.

[0066] Please refer to the attached Figure 1 , Attachment Figure 2 and attached Figure 3 In a specific implementation of the present embodiment, along the width direction of the bay window cover 3, the extension length of the first reserved tongue and groove 11 in the horizontal direction is greater than the extension length of the second reserved tongue and groove 21 in the horizontal direction.

[0067] In the utility model, through the above arrangement, it is ensured that both sides of the bay window cover plate 3 have stable and reliable installation positions, ensuring the stability of the erection and installation.

[0068] Please refer to the attached Figure 2 and attached Figure 4 In a specific implementation of this embodiment, the bay window cover 3 includes:

[0069] A cover plate body 30, wherein the cover plate body 30 is a cubic structural member, and one side of the cover plate body 30 is at least partially placed on the second reserved groove 21;

[0070] The protrusion 31 is a cubic structural member having the same thickness as the cover body 30 , the protrusion 31 is connected to a side of the cover body 30 away from the first reserved groove 11 , the length of the protrusion 31 is smaller than the length of the cover body 30 , and the protrusion 31 is at least partially placed on the first reserved groove 11 .

[0071] In a specific implementation of this embodiment, a receiving position (not shown in the figure) is provided on one side adjacent to the cover body 30 or the protrusion 31, and the receiving position is an extended edge protruding from one side and extending away from the other side of the cover body 30, and the protrusion 31 or the cover body 30 is provided with a receiving groove matched with the extended edge. The receiving groove provided on the side of the protrusion 31 away from the first reserved groove 11 is built on the receiving position provided on the side of the cover body 30, or the receiving groove on the side of the cover body 30 away from the second reserved groove 21 is built on the receiving position on the side of the protrusion 31.

[0072] In another specific implementation of the present embodiment, a support column (not shown in the figure) is arranged between the building exterior wall 1 and the interior wall 2, and the bottom end of the support column is arranged on the building layer (floor), and the other end is supported on the bottom side (in the vertical direction) of the cover body 30 and / or the protrusion 31; at least one support column is arranged.

[0073] Please refer to the attached Figure 2 and attached Figure 5 In another specific implementation of the present embodiment, the bay window cover plate 3 includes a first cover plate 32 and a second cover plate 33, and the first cover plate 32 and the second cover plate 33 are arranged along the width direction of the bay window cover plate 3;

[0074] The projections of the first cover plate 32 and the second cover plate 33 along the length direction parallel to the bay window cover plate 3 overlap, and the projection areas of the first cover plate 32 and the second cover plate 33 along the thickness direction parallel to the bay window cover plate 3 are equal.

[0075] It should be further pointed out that, in the above embodiment, the first cover plate 32 and the second cover plate 33 are "L-shaped" structural members, and one side of the first cover plate 32 and the second cover plate 33 are both laid on the first reserved tongue and groove 11, and the other side of the first cover plate 32 and the second cover plate 33 (opposite to the side laid on the first reserved tongue and groove 11) are both laid on the second reserved tongue and groove 21.

[0076] In a specific implementation of this embodiment, a support column (not shown in the figure) is arranged between the building exterior wall 1 and the interior wall 2, and the bottom end of the support column is arranged on the building layer plate (floor), and the other end is supported on the bottom side (relative to the vertical direction) of the first cover plate 32 and / or the second cover plate 33; at least one support column is arranged.

[0077] Please refer to the attached Figure 2 and attached Figure 6In a specific implementation of this embodiment, the bay window cover plate 3 further includes a third cover plate 34, and the third cover plate 34 is disposed between the first cover plate 32 and the second cover plate 33;

[0078] Along the length direction of the bay window cover plate 3 , the third cover plate 34 overlaps with the projections of the first cover plate 32 and the second cover plate 33 .

[0079] In the utility model, the assembleable bay window cover plate 3 is provided, so that the manufacturing and transportation are convenient and the installation is more convenient.

[0080] It should be further pointed out that in the above implementation, there are two specific solutions:

[0081] 1) The first cover plate 32 and the second cover plate 33 are "L-shaped" structural members, and the third cover plate 34 is a rectangular structural member (not shown in the figure). Along the width direction of the bay window cover plate 3, the maximum extension lengths of the first cover plate 32, the second cover plate 33 and the third cover plate 34 are the same. One side of the first cover plate 32, the second cover plate 33 and the third cover plate 34 are all laid on the first reserved tongue and groove 11, and the other sides of the first cover plate 32, the second cover plate 33 and the third cover plate 34 (opposite to the side laid on the first reserved tongue and groove 11) are all laid on the second reserved tongue and groove 21.

[0082] 2) Please refer to the attached Figure 6 , the first cover plate 32, the second cover plate 33 and the third cover plate 34 are all rectangular parallelepiped structural members. Along the length direction of the bay window cover plate 3, the projections of the first cover plate 32 and the second cover plate 33 are equal and smaller than the projection size of the third cover plate 34; along the thickness direction of the bay window cover plate 3, the projections of the first cover plate 32 and the second cover plate 33 are equal and smaller than the projection size of the third cover plate 34. The first cover plate 32, the second cover plate 33 and the third cover plate 34 are arranged in sequence, one side of the third cover plate 34 is laid on the first reserved tongue and groove 11, and the other side of the third cover plate 34 (opposite to the side laid on the first reserved tongue and groove 11) is laid on the second reserved tongue and groove 21; the first cover plate 32 and the second cover plate 33 are laid on the second reserved tongue and groove 21 of the inner wall 2 on the side away from the building exterior wall 1.

[0083] In a specific implementation of the present embodiment, a receiving position (not shown in the figure) is provided on one side of the first cover plate 32 or the second cover plate 33 or the third cover plate 34, and a receiving groove matching the receiving position is provided on the side of the cover plate opposite to the receiving position of the first cover plate 32 or the second cover plate 33 or the third cover plate 34. For example, a receiving position is provided on one side of the first cover plate 32 close to the third cover plate 34, a receiving position is provided on one side of the second cover plate 33 close to the third cover plate 34, and receiving grooves are provided on both sides of the third cover plate 34 close to the first cover plate 32 and the second cover plate 33. When installing, the receiving position is installed in the receiving groove. Of course, other combinations are also possible, which are not listed here one by one.

[0084] In a specific implementation of this embodiment, a support column (not shown in the figure) is arranged between the building exterior wall 1 and the interior wall 2, and the bottom end of the support column is arranged on the building layer plate (floor), and the other end is supported on the bottom side (relative to the vertical direction) of the first cover plate 32 and / or the second cover plate 33 and / or the third cover plate 34; at least two support columns are arranged.

[0085] In a specific implementation of this embodiment, a lifting ring (not shown in the figure) is provided on the bay window cover 3, and the bay window cover 3 is installed by hoisting;

[0086] Before the bay window cover 3 is installed, the gap (between the bay window cover and the first reserved tongue and / or the second reserved tongue and / or the gap) is filled and plugged with foam glue and / or cement-based grouting material;

[0087] In a specific implementation of this embodiment, the bottom side of the gap (the bottom side relative to the vertical direction) is first filled with foam glue, and 2 to 3 cm is reserved on the top for filling with cement-based grouting material.

[0088] In a specific implementation of this embodiment, during decoration, the wall plastering covers the entire wall (part of the building exterior wall 1 and the interior wall 2) and the bay window cover 3;

[0089] When decorating the bay window cover plate 3 and the tongue and groove (the first reserved tongue and groove and the second reserved tongue and groove), gaps, and joints, overlapped mesh cloth is used for grouting and leveling.

[0090] By applying the inner bay window structure provided by the utility model, it is not necessary to set the pick ears, which reduces the construction steps, reduces the construction workload and reduces the construction cost.

[0091] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. An internal bay window structure, arranged on an exterior wall (1) of a building, characterized in that: The inner side of the building exterior wall (1) is provided with a first reserved groove (11) extending in a horizontal direction, and the extension length of the first reserved groove (11) is smaller than the width of the building exterior wall (1); The inner bay window structure comprises: An inner wall (2), the inner wall (2) being arranged parallel to the inner side of the building outer wall (1), a second reserved groove (21) having the same horizontal height as the first reserved groove (11) being arranged on a side of the inner wall (2) close to the building outer wall (1), the second reserved groove (21) being arranged opposite to the first reserved groove (11); A bay window cover plate (3), wherein the bay window cover plate (3) is at least partially mounted on the first reserved tongue and groove (11) and the second reserved tongue and groove (21).

2. The inner bay window structure according to claim 1, characterized in that: The sides of the building outer wall (1) and the inner wall (2) that are close to each other are spaced apart from each other.

3. The inner bay window structure according to claim 2, characterized in that: The width of the bay window cover (3) is smaller than the distance between the first reserved tongue and groove (11) and the second reserved tongue and groove (21) facing each other; When the bay window cover plate (3) is covered on the building exterior wall (1) and the interior wall (2), a gap exists between the bay window cover plate (3) and the first reserved tongue and groove (11) and / or the second reserved tongue and groove (21).

4. The inner bay window structure according to claim 3, characterized in that: The gap is filled and compacted by using foam glue and / or cement-based grouting.

5. The inner bay window structure according to claim 1, characterized in that: The first reserved groove (11) and the second reserved groove (21) have the same depth in the vertical direction, and are the same as the thickness of the bay window cover (3).

6. The inner bay window structure according to claim 5, characterized in that: Along the length direction of the bay window cover plate (3), the extension length of the first reserved tongue and groove (11) in the horizontal direction is smaller than the extension length of the second reserved tongue and groove (21) in the horizontal direction.

7. The inner bay window structure according to claim 6, characterized in that: Along the width direction of the bay window cover plate (3), the extension length of the first reserved tongue and groove (11) in the horizontal direction is greater than the extension length of the second reserved tongue and groove (21) in the horizontal direction.

8. An inner bay window structure according to any one of claims 1 to 7, characterized in that: The bay window cover plate (3) comprises: A cover plate body (30), the cover plate body (30) being a cubic structural member, and one side of the cover plate body (30) being at least partially mounted on the second reserved groove (21); A protrusion (31), the protrusion (31) being a cubic structural member having the same thickness as the cover plate body (30), the protrusion (31) being connected to a side of the cover plate body (30) away from the first reserved groove (11), the length of the protrusion (31) being less than the length of the cover plate body (30), and the protrusion (31) being at least partially mounted on the first reserved groove (11).

9. An inner bay window structure according to any one of claims 1 to 7, characterized in that: The bay window cover plate (3) comprises a first cover plate (32) and a second cover plate (33), wherein the first cover plate (32) and the second cover plate (33) are arranged along the width direction of the bay window cover plate (3); The projections of the first cover plate (32) and the second cover plate (33) in a length direction parallel to the bay window cover plate (3) overlap, and the projection areas of the first cover plate (32) and the second cover plate (33) in a thickness direction parallel to the bay window cover plate (3) are equal.

10. The inner bay window structure according to claim 9, characterized in that: The bay window cover plate (3) further comprises a third cover plate (34), wherein the third cover plate (34) is arranged between the first cover plate (32) and the second cover plate (33); Along the length direction of the bay window cover plate (3), the projections of the third cover plate (34) overlap with those of the first cover plate (32) and the second cover plate (33).

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