A prefabricated bay window and a method of installing the same

Abstract

This invention discloses a precast bay window and its installation method, belonging to the field of building engineering technology. The precast bay window includes an external window opening formed by an upper cantilever slab, a left side slab, a lower cantilever slab, and a right side slab. An upward-extending, non-removable upper template is provided on the inner edge of the upper cantilever slab. The upper parts of the left and right side slabs extend upwards to be flush with the top of the non-removable upper template, and an embedded upper template extends inwardly from the inner side of the upper cantilever slab. The inner end face of the embedded upper template has upper template fixing holes. The precast bay window is integrally cast. This invention, through the use of a non-removable upper template and an embedded upper template, replaces the existing bottom formwork and outer formwork of cast-in-place beams. Only one side of the template needs to be installed to form the cast-in-place concrete cavity, greatly reducing the amount of on-site formwork support work, improving construction efficiency, and simplifying construction procedures. Furthermore, it reduces the construction joint between the cast-in-place part and the precast bay window, lowering the risk of cracking and leakage, and improving the quality of the completed construction.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, and in particular to a prefabricated bay window and its installation method. Background Technology

[0002] Precast bay windows require formwork erection for the window area during installation, followed by cast-in-place concrete pouring to secure the window. However, existing formwork systems for precast bay windows are inconvenient, and the wall section formwork requires additional bends. This not only hinders connection with the precast bay window components but also easily leads to formwork bursts and grout leakage. Furthermore, construction joints exist between the cast-in-place portion and the precast bay window components after construction, resulting in poor waterproofing, durability, and overall poor construction quality, failing to meet construction requirements.

[0003] Therefore, it is evident that the existing prefabricated bay windows still have inconveniences and defects in terms of structure and use, and urgently need further improvement. The new prefabricated bay window and its installation method created in this application can overcome many problems existing in the current prefabricated bay windows. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a precast bay window that overcomes the inconvenience of formwork support by setting up a formwork that does not require dismantling and an embedded formwork. Moreover, by setting up formwork fixing holes on the inner end face of the embedded formwork, it is easier to fix the on-site support formwork, quickly form the cast-in-place concrete cavity, reduce the amount of on-site support formwork work, improve construction efficiency, simplify procedures, and improve construction quality, thereby overcoming the shortcomings of existing precast bay windows.

[0005] To solve the above-mentioned technical problems, the present invention provides a prefabricated bay window, including an outer window opening of the bay window formed by an upper cantilever plate, a left side plate, a lower cantilever plate and a right side plate. The inner edge of the upper cantilever plate is provided with an upwardly extending non-removable upper template. The upper parts of the left side plate and the right side plate extend upward to be flush with the top of the non-removable upper template, and the inner side of the upper cantilever plate also extends inward to form an embedded upper template. The inner end face of the embedded upper template is provided with an upper template fixing hole.

[0006] In a further improvement, the inner edge of the cantilever plate is provided with a downward-extending, non-removable lower template, the lower parts of the left and right side plates extend downward to be flush with the bottom end of the non-removable lower template, the inner side of the cantilever plate is provided with an inwardly extending embedded lower template, and the inner end face of the embedded lower template is provided with a lower template fixing hole.

[0007] A further improvement is made by providing an inwardly extending embedded left template on the inner side of the left side plate, wherein a left template fixing hole is provided on the inner end face of the embedded left template; and / or

[0008] An inwardly extending embedded right template is provided on the inner side of the right side plate, and a right template fixing hole is provided on the inner end face of the embedded right template.

[0009] In a further improvement, the inner surfaces of the embedded upper template, embedded lower template, embedded left template, and embedded right template are all flush with the corresponding inner surfaces of the outer window opening of the convex window, and the embedded lower template is provided with ventilation holes.

[0010] In a further improvement, the outer surfaces of the embedded upper template, embedded lower template, embedded left template, and embedded right template are all set to rough surfaces.

[0011] In a further improvement, the prefabricated bay window is integrally cast.

[0012] As a further improvement, the upper surface of the cantilever plate is configured as a downward slope structure.

[0013] In a further improvement, a first tongue-and-groove structure is provided on all four edges of the outer window opening of the bay window, and a second tongue-and-groove structure is provided on the outer edges of the upward and downward extension plates of the left and right side plates, the second tongue-and-groove structure being the same as the first tongue-and-groove structure.

[0014] Alternatively, the outer window opening of the bay window is provided with a first tongue and groove structure on all four edges, the right side of the upward extension plate and the downward extension plate of the left side plate are both set as outward sloping surfaces, the left side of the upward extension plate and the downward extension plate of the right side plate are both set as outward sloping surfaces, and the width of the outer end face of the upward extension plate and the downward extension plate of the left side plate and the right side plate is equal to the width of the outer end face of the left side plate and the right side plate.

[0015] Alternatively, the outer window opening of the bay window is provided with a first tongue and groove structure on all four edges, and the width of the upward and downward extension plates of the left and right side plates is equal to the width of the outer end face of the left and right side plates.

[0016] As a further improvement of the present invention, the present invention also provides an installation method for the above-mentioned prefabricated bay window, the installation method comprising the following steps:

[0017] (1) Move the prefabricated bay window to the installation position and fix it with temporary support measures;

[0018] (2) Tie the reinforcing bars of the cast-in-place section to connect them with the precast bay window;

[0019] (3) Use connectors to fix the formwork of the cast-in-place part to the inside of the precast bay window to form the cast-in-place concrete cavity part;

[0020] (4) Pour concrete into the cavity of the cast-in-place concrete. After the concrete reaches the required strength, remove the connectors, dismantle the formwork of the cast-in-place part, and remove the temporary supports.

[0021] (5) Seal all template fixing holes and ventilation holes to complete the installation of the prefabricated bay window.

[0022] With this design, the present invention has at least the following advantages:

[0023] 1. The precast bay window of this invention uses a non-removable upper formwork and an embedded upper formwork to replace the cast-in-place beam bottom formwork and outer beam formwork that need to be installed and removed during the construction of existing precast bay windows. Only one side of the formwork needs to be installed to form the cast-in-place concrete cavity, which greatly reduces the amount of on-site support formwork work, improves construction efficiency, and simplifies construction procedures. Moreover, since the non-removable upper formwork and the embedded upper formwork are not removed, the gap between on-site support formwork is reduced, the construction joint between the cast-in-place part and the precast bay window is reduced, the risk of cracking is reduced, the risk of leakage is reduced, and the quality of construction is improved.

[0024] 2. Furthermore, by adding non-removable lower formwork and embedded lower formwork to replace the outer formwork of the upturned beam that needs to be installed and removed during the construction of existing precast bay windows, the construction process is further simplified. Additionally, the inclusion of embedded left and right formwork enables on-site concrete pouring on both sides of the precast bay window, meeting different site requirements.

[0025] 3. Furthermore, by making the outer surfaces of the embedded upper template, embedded lower template, embedded left template, and embedded right template rough, the shear resistance of the interface between the cast-in-place part and the precast component is improved, thus ensuring construction quality.

[0026] 4. Furthermore, by adopting the same tongue and groove structure, slope finding, or overall width reduction, the appearance dimensions of the side panel and its upper and lower extension panels are made consistent, ensuring the appearance of the prefabricated bay window, and also having the characteristics of convenient processing and reduced material usage.

[0027] 5. Furthermore, the inclusion of vent holes in the lower formwork facilitates the removal of air from the cavity during cast-in-place concrete construction, overcoming the drawbacks of insufficient compaction and improving construction quality. Attached Figure Description

[0028] The above is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Figure 1 This is a schematic diagram of the outdoor three-dimensional structure of the prefabricated bay window embodiment one of the present invention.

[0030] Figure 2 This is a schematic diagram of the interior three-dimensional structure of the prefabricated bay window embodiment one of the present invention.

[0031] Figure 3This is a front view of the outdoor structure of the first embodiment of the prefabricated bay window of the present invention.

[0032] Figure 4 This is a front view of the interior side structure of Embodiment 1 of the prefabricated bay window of the present invention.

[0033] Figure 5 yes Figure 3 Cross-sectional view of the AA line structure.

[0034] Figure 6 yes Figure 4 Cross-sectional view of the BB line structure.

[0035] Figure 7 yes Figure 4 Cross-sectional view of the CC line structure.

[0036] Figure 8 This is a schematic diagram of the structure of the on-site support template for the indoor side installation of the prefabricated bay window according to Embodiment 1 of the present invention.

[0037] Figure 9 This is a schematic diagram of the structure after the indoor side of the precast bay window of the present invention has been cast with concrete.

[0038] Figure 10 This is a structural cross-sectional view of another embodiment of the upward extension plates of the left and right sides of the prefabricated bay window in Embodiment 1 of the present invention.

[0039] Figure 11 This is a structural cross-sectional view of another embodiment of the upward extension plates of the left and right sides of the prefabricated bay window in Embodiment 1 of the present invention.

[0040] Figure 12 This is a flowchart illustrating the installation method of the prefabricated bay window of this invention.

[0041] Figure 13 This is a schematic diagram of the interior three-dimensional structure of the prefabricated bay window embodiment two of the present invention.

[0042] Figure 14 This is a schematic diagram of the interior three-dimensional structure of the prefabricated bay window embodiment three of the present invention.

[0043] Figure 15 This is a schematic diagram of the interior three-dimensional structure of the prefabricated bay window embodiment four of the present invention. Detailed Implementation

[0044] Example 1

[0045] See attached document Figures 1 to 7As shown, the prefabricated bay window in this embodiment includes a U-shaped bay window opening 1 formed by an upper cantilever plate 11, a left side plate 12, a lower cantilever plate 13, and a right side plate 14. The upper surface of the upper cantilever plate 11 is designed with a downward slope structure, which can prevent rainwater from accumulating at the corner flashing area and reduce the risk of water seepage in the prefabricated bay window.

[0046] In this embodiment, the inner edge of the upper cantilever plate 11 is provided with an upwardly extending, non-removable upper template 21, and the inner edge of the lower cantilever plate 13 is provided with a downwardly extending, non-removable lower template 23. The upper portions of the left side plate 12 and the right side plate 14 extend upward to be flush with the top of the non-removable upper template 21, forming an upwardly extending plate 22 of the left side plate 12 and an upwardly extending plate 24 of the right side plate 14. The lower portions of the left side plate 12 and the right side plate 14 extend downward to be flush with the bottom of the non-removable lower template 23, forming a downwardly extending plate 25 of the left side plate 12 and a downwardly extending plate 26 of the right side plate 14. Viewed from the outside of the prefabricated bay window, it forms two H-shaped arrangements, one above the other.

[0047] The inner side of the cantilever plate 11 extends inward to form an embedded upper template 31. The inner end face of the embedded upper template 31 has an upper template fixing hole 311 for fixing the upper template 110 to the inner side of the embedded upper template 31 via the connector 10. This is simple and convenient, and forms a cavity for the cast-in-place concrete section enclosed by the upper template 110, the embedded upper template 31, and the non-removable upper template 21, as shown in the attached figure. Figure 8 As shown, the functions of the non-removable upper formwork 21 and the embedded upper formwork 31 are to replace the bottom formwork and outer formwork of the cast-in-place beam, eliminating the need for installation and removal of the bottom formwork and outer formwork. Only the upper formwork 110 needs to be installed and removed, simplifying the construction process and improving construction efficiency.

[0048] The inner side of the cantilever plate 13 is provided with an inwardly extending embedded lower template 33. The inner end face of the embedded lower template 33 is provided with a lower template fixing hole 331, which is used to fix the lower template 130 to the inner side of the embedded lower template 33 through the connector 10, forming a cavity for the cast-in-place concrete part surrounded by the lower template 130, the embedded lower template 33 and the non-removable lower template 23, as shown in the attached figure. Figure 8 As shown, the function of the non-removable lower formwork 23 and the embedded lower formwork 33 is to replace the top formwork or the upturned beam of the cast-in-place structural wall, eliminating the need for installation and removal of the top formwork or the upturned beam formwork. Only the lower formwork 130 needs to be installed and removed, which simplifies the construction process and improves construction efficiency.

[0049] Furthermore, the embedded lower template 33 is provided with vent holes 20. The vent holes 20 are used to remove air from the cast-in-place cavity to prevent the casting from being loose.

[0050] An inwardly extending embedded left template 32 is provided on the inner side of the left side plate 12. A left template fixing hole 321 is provided on the inner end face of the embedded left template 32 for fixing the left template 120 to the inner side of the embedded left template 32 via a connector 10, forming a cavity in the cast-in-place concrete section enclosed by the left template 120, the embedded left template 32, and the inner wall of the wall, as shown in the attached figure. Figure 8 As shown, the function of the embedded left formwork 32 is to replace the left end formwork of the cast-in-place wall, eliminating the need for installation and removal of the left end formwork. Only the left formwork 120 needs to be installed and removed, simplifying the construction process and improving construction efficiency.

[0051] An inwardly extending embedded right template 34 is provided on the inner side of the right side plate 14. A right template fixing hole 341 is provided on the inner end face of the embedded right template 34 for fixing the right template 140 to the inner side of the embedded right template 34 via the connector 10, forming a cavity in the cast-in-place concrete section enclosed by the right template 140, the embedded right template 34, and the inner wall of the wall, as shown in the attached figure. Figure 8 As shown, the function of the embedded right formwork 34 is to replace the right end formwork of the cast-in-place wall, eliminating the need for installation and removal of the right end formwork. Only the right formwork 140 needs to be installed and removed, simplifying the construction process and improving construction efficiency.

[0052] In this embodiment, the inner surfaces of the embedded upper template 31, embedded lower template 33, embedded left template 32, and embedded right template 34 are all flush with the corresponding inner surface of the outer window opening 1 of the convex window. That is, the inner surfaces of the embedded upper template 31, embedded lower template 33, embedded left template 32, and embedded right template 34 are all inwardly flat extensions of the corresponding inner surface of the outer window opening 1 of the convex window.

[0053] The outer surfaces of the embedded upper template 31, embedded lower template 33, embedded left template 32, and embedded right template 34 are all made with rough surfaces to facilitate bonding with cast-in-place concrete and improve construction quality.

[0054] In this embodiment, the prefabricated bay window is integrally cast, meaning that all the above components are formed in one casting process.

[0055] In this embodiment, the outer window opening 1 of the bay window is provided with a first tongue and groove structure 2 on all four edges to enhance the waterproof and seepage-proof performance of the outer window.

[0056] To maintain the same external dimensions as the upward extension plates 22, 24 and the downward extension plates 25, 26 as the external window opening 1, a second tongue-and-groove structure 3 is provided at the outer edges of the upward extension plates 22, 24 and the downward extension plates 25, 26 of the left side plate 12 and the right side plate 14, as shown in the attached figure. Figure 7 As shown. The second tongue-and-groove structure 3 is the same as the first tongue-and-groove structure 2, and the production template is unified, reducing the types of additional molds and simplifying production.

[0057] Of course, the slope can also be configured such that the right sides of the upward extension plate and the downward extension plate 25' of the left side plate 12 are both set as outwardly sloping surfaces, and the left sides of the upward extension plate and the downward extension plate 26' of the right side plate 14 are both set as outwardly sloping surfaces, and the width of the outer end faces of the upward extension plates and the downward extension plates 25' and 26' of the left side plate 12 and the right side plate 14 is equal to the width of the outer end faces of the left side plate 12 and the right side plate 14, as shown in the attached figure. Figure 10 As shown.

[0058] Alternatively, the side panel dimensions can be reduced as follows: the widths of the upward and downward extension plates 25” and 26” of the left side panel 12 and the right side panel 14 are equal to the widths of the outer end faces of the left side panel 12 and the right side panel 14, as shown in the attached figure. Figure 11 As shown, this reduces the weight of components and the amount of material used.

[0059] See attached document Figure 12 As shown, the installation method of the prefabricated bay window in this embodiment includes the following steps:

[0060] (1) Transport the prefabricated bay window components produced in the factory to the construction site, and use lifting equipment to move the prefabricated bay window components to the installation position and fix them with temporary support measures;

[0061] (2) Tie the reinforcing bars of the cast-in-place section to connect them with the precast bay window;

[0062] (3) Use connectors to fix the formwork of the cast-in-place section to the inner side of the precast bay window through the respective formwork fixing holes, as shown in the attached figure. Figure 8 As shown, a cast-in-place concrete cavity is formed; for example, the upper formwork 110 is fixed to the inside of the embedded upper formwork 31 using connector 10, the lower formwork 130 is fixed to the inside of the embedded lower formwork 33 using connector 10, the left formwork 120 is fixed to the inside of the embedded left formwork 32 using connector 10, and the right formwork 140 is fixed to the inside of the embedded right formwork 34 using connector 10, thus forming a cast-in-place space around each embedded formwork;

[0063] (4) Pour concrete into the cavity of the cast-in-place concrete. After the concrete reaches the required strength, remove the connectors, dismantle the formwork of the cast-in-place section, and remove the temporary supports, as shown in the attached document. Figure 9 As shown;

[0064] (5) Seal all template fixing holes and ventilation holes to complete the installation of the prefabricated bay window.

[0065] This embodiment of precast bay window is integrally cast, including a non-removable upper formwork and a non-removable lower formwork, as well as embedded upper formwork, embedded lower formwork, embedded left formwork, and embedded right formwork. It is used to replace the cast-in-place beam bottom formwork, upturned beam, wall top formwork, wall left end formwork, and wall right end formwork that need to be installed and removed during the construction of existing precast bay windows. This greatly reduces the amount of on-site support formwork work, improves construction efficiency, and simplifies construction procedures. Moreover, by reducing the gaps between on-site support formwork, it reduces the construction joints between the cast-in-place part and the precast bay window, reduces the risk of cracking, extends the water seepage path of the external wall, reduces the risk of leakage, and improves the quality of construction completion.

[0066] Example 2

[0067] The difference between this embodiment and Embodiment 1 is as follows, as shown in the appendix. Figure 13 As shown, the inner side of the outer window of the bay window only extends the embedded upper template 31, the embedded right template 34 and the embedded lower template 33, which are used to realize the concrete pouring on the upper side of the embedded upper template, the left side of the embedded left template and the lower side of the embedded lower template.

[0068] Of course, the prefabricated bay windows can also be arranged symmetrically. For example, the inner side of the outer window of the bay window can only extend out to form an embedded upper template 31, an embedded left template 32, and an embedded lower template 33, which are used to pour concrete on the upper side of the embedded upper template, the left side of the embedded left template, and the lower side of the embedded lower template. In this way, when structural columns need to be set between the bay windows, two symmetrical prefabricated bay windows can be set up close to each other to adapt to the design requirements of different bay windows.

[0069] Example 3

[0070] The difference between this embodiment and Embodiment 1 is as follows, as shown in the appendix. Figure 14 As shown, the inner side of the outer window of the bay window only extends the embedded upper template 31 and the embedded lower template 33, which are only used to realize the concrete pouring on the upper side of the embedded upper template and the lower side of the embedded lower template.

[0071] Example 4

[0072] The difference between this embodiment and Embodiment 1 is as follows, as shown in the appendix. Figure 15 As shown, the inner side of the outer window of the bay window only extends out the embedded upper template 31, which is only used to realize the concrete pouring on the upper side of the embedded upper template.

[0073] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0074] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0075] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, or alterations made by those skilled in the art using the disclosed technical content shall fall within the protection scope of the present invention.

Claims

1. A prefabricated bay window comprising a bay window outer window opening enclosed by a jettied board, a left side board, a jettied lower board and a right side board, characterized in that, The inner edge of the cantilever plate is provided with an upward-extending, non-removable upper template. The upper parts of the left and right side plates extend upward to be flush with the top of the non-removable upper template. The inner side of the cantilever plate also extends inward to form an embedded upper template. The inner end face of the embedded upper template is provided with an upper template fixing hole. The inner edge of the cantilever plate is provided with a downward-extending, non-removable lower template. The lower parts of the left and right side plates extend downward to be flush with the bottom end of the non-removable lower template. The inner side of the cantilever plate is provided with an inward-extending embedded lower template. The inner end face of the embedded lower template is provided with a lower template fixing hole. An inwardly extending embedded left template is provided on the inner side of the left side plate, and a left template fixing hole is provided on the inner end face of the embedded left template; and / or, an inwardly extending embedded right template is provided on the inner side of the right side plate, and a right template fixing hole is provided on the inner end face of the embedded right template. The inner surfaces of the embedded upper template, embedded lower template, embedded left template, and embedded right template are all flush with the corresponding inner surfaces of the outer window opening of the convex window. The embedded lower template is provided with ventilation holes, and the outer surfaces of the embedded upper template, embedded lower template, embedded left template, and embedded right template are all made into rough surfaces.

2. The prefabricated bay window according to claim 1, characterized in that The precast bay window is cast in one piece.

3. A preformed bay window according to claim 1 or 2, wherein, The outer edges of the bay window opening are provided with a first tongue and groove structure, and the outer edges of the upward and downward extension plates of the left and right side plates are provided with a second tongue and groove structure, which is the same as the first tongue and groove structure.

4. The prefabricated bay window according to claim 1 or 2, characterized in that The outer window opening of the bay window is provided with a first tongue and groove structure on all four edges. The right side of the upward extension plate and the downward extension plate of the left side plate are both set as outward sloping surfaces. The left side of the upward extension plate and the downward extension plate of the right side plate are both set as outward sloping surfaces. The width of the outer end face of the upward extension plate and the downward extension plate of the left side plate and the right side plate is equal to the width of the outer end face of the left side plate and the right side plate.

5. The prefabricated bay window according to claim 1 or 2, characterized in that, The outer window opening of the bay window is provided with a first tongue and groove structure on all four edges. The width of the upward extension plate and the downward extension plate of the left side plate and the right side plate are equal to the width of the outer end face of the left side plate and the right side plate.

6. The method of installing a prefabricated bay window according to claim 1 or 2, wherein The installation method includes the following steps: (1) Move the prefabricated bay window to the installation position and fix it with temporary support measures; (2) Tie the reinforcing bars of the cast-in-place section to connect it with the precast bay window; (3) Use connectors to fix the formwork of the cast-in-place part to the inside of the precast bay window to form the cast-in-place concrete cavity part; (4) Pour concrete into the cavity of the cast-in-place concrete. After the concrete reaches the required strength, remove the connectors, dismantle the formwork of the cast-in-place part, and remove the temporary supports. (5) Seal all template fixing holes and ventilation holes to complete the installation of the prefabricated bay window.

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