A prefabricated concrete bay window structure

Abstract

This utility model relates to the field of building construction structure technology, specifically disclosing a prefabricated concrete bay window structure, including a horizontal panel, a front panel, and side panels. Two side panels are symmetrically installed on the main platform. A firewall is fixedly connected inside the side panels, and a front panel is connected to the outside of the side panels. A horizontal panel is installed on top of the front and side panels. The horizontal panel, firewall, front panel, and side panels constitute the bay window sill structure. The horizontal panel, front panel, and side panels are all formed with expansion plug holes and / or bolt through holes through precast slab molds. The precast concrete slab structure assembly of this utility model is conducive to improving construction efficiency, saving costs, improving safety performance, and is convenient, safe, and reliable in construction. It effectively solves the problems of complex construction process and many subsequent quality defects in bay windows. The joints of the panels are sealed with mortar, ensuring both sealing and strength are safe and reliable.

Description

Technical Field

[0001] This utility model belongs to the field of building construction structure technology, specifically relating to a prefabricated concrete bay window structure. Background Technology

[0002] With the development of urban construction, high-rise buildings are becoming increasingly common. Modern buildings, especially residential buildings, are mostly shear wall structures. During the construction of bay windows, it is necessary to proceed with the main structure layer by layer or with secondary structure construction. Traditionally, bay window construction typically involves on-site formwork erection of an external concrete structure, enclosed by concrete or brick walls. This method is not only cumbersome and inefficient, consuming large quantities of steel pipes, fasteners, and timber formwork, resulting in high costs, but also prone to quality problems later on, such as steel reinforcement falling to the bottom of the slab during concrete pouring, leading to breakage of the external slab or water leakage. This makes it difficult to guarantee construction quality, further increases construction costs, and reduces construction efficiency.

[0003] Existing prefabricated building technologies are mostly monolithic prefabrication, and although they have begun to be applied, their adoption rate is still not high. This is mainly because the monolithic prefabrication of concrete bay windows makes transportation, hoisting, and installation time-consuming and labor-intensive, easily increasing costs. Furthermore, the combination of traditional prefabricated construction methods and the assembly of small components cannot effectively solve the problems of complex construction processes and numerous subsequent quality defects associated with bay windows. Therefore, there is a need to design a simplified, prefabricated concrete bay window structure to address the issues of cumbersome transportation and installation, low on-site compatibility, and high construction costs associated with existing monolithic prefabricated bay window structures. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a prefabricated concrete bay window structure.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a prefabricated concrete bay window structure, including a horizontal panel, a front panel and a side panel. Two side panels are provided and symmetrically installed on the main platform. A firewall is fixedly connected inside the side panel. The front panel is connected to the outside of the side panel. A horizontal panel is installed on the top of the front panel and the side panel. The horizontal panel, firewall, front panel and side panel form a bay window sill structure.

[0006] The horizontal panels, front panels, and side panels are all formed with expansion plugs and / or bolt through holes using precast slab molds.

[0007] Specifically, the main platform is set on the outside of the wall, and a firewall is built on the main platform. The inside of the firewall is flush with the inside of the wall, and the top of the firewall is flush with the top of the horizontal panel.

[0008] Specifically, a bay window frame is installed on the main platform, and the bay window frame wraps around the outside of the bay window sill structure.

[0009] Specifically, the precast slab mold includes an inner frame, an inner substrate, a limiting beam, and a support beam. The inner substrate is fixedly connected to the bottom of the inner frame. The inner frame and the inner substrate form a square frame structure with an opening at the top. Multiple sets of square frame structures are provided, and each set of square frame structures is adapted to the casting size of a horizontal panel, a front panel, or a side panel.

[0010] Specifically, the horizontal panel is cast using a square frame structure with five bottom hole rods fixed on the inner substrate, and the horizontal panel is cast and formed with five bolt through holes.

[0011] Specifically, the inner lining plate of the square frame structure used for casting the upright panel is fixed with four bottom hole rods, and the inner wall of the inner lining frame of one side of the square frame structure used for casting the upright panel is fixed with three side hole rods. After the upright panel is cast, it is provided with four bolt through holes and three expansion plug holes at the top.

[0012] Specifically, a side hole rod is fixed on the inner wall of one side of the square frame structure used for casting the side panel, and two side hole rods are fixed on the inner wall of the adjacent other side of the square frame structure used for casting the side panel. After the side panel is cast, it has one expansion plug hole at the top and two expansion plug holes on the outer side.

[0013] Specifically, there are two limiting beams arranged symmetrically, and two limiting blocks are fixedly installed on each limiting beam. The inner side of the limiting block blocks blocks the support beam. The two support beams are located inside the two limiting beams. The support beams and limiting beams are both tightly attached to the outside of the inner lining frame. A clamping mechanism is installed between the two limiting beams, and the clamping mechanism is located at the support beam.

[0014] Specifically, the clamping mechanism includes a clamping block one, a clamping block two, and a clamping rod. The clamping block one is fixedly connected to one end of the clamping rod, and the clamping rod passes through the through hole on the clamping block two. The clamping rod is a threaded rod, and a clamping nut is threadedly connected to the clamping rod. The clamping nut is located on the outside of the clamping block two. The clamping block one and the clamping block two are respectively set on the outside of the two limiting beams.

[0015] Specifically, an expansion plug is placed in the expansion plug hole, a fastening bolt is installed in the expansion plug, the fastening bolt passes through the bolt through hole, and the fastening bolt and the expansion plug cooperate to fix the horizontal panel, the front panel and the side panel together.

[0016] This utility model has the following beneficial effects:

[0017] This utility model designs a prefabricated concrete bay window structure using precast concrete panels assembled from precast molds. Engineering practice has proven that this improves construction efficiency, saves costs, enhances safety, and ensures convenient and reliable construction. Different sizes of horizontal, front, and side panels can be fabricated using precast molds of varying sizes, allowing for immediate construction. This effectively solves the problems of complex construction processes and numerous subsequent quality defects associated with bay windows. In addition to using bolts for fixing, mortar is applied to the joints of the panels for sealing, ensuring both sealing and strength for a safe and reliable connection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the assembly structure of a prefabricated concrete bay window.

[0019] Figure 2 This is a top view of the horizontal panel.

[0020] Figure 3 This is the front view of the upright panel.

[0021] Figure 4 This is a top view of the upright panel.

[0022] Figure 5 This is the front view of the side panel.

[0023] Figure 6 This is a schematic diagram of the precast panel mold structure for horizontal panels.

[0024] Figure 7 This is a schematic diagram of the precast panel mold structure for the upright panel.

[0025] As shown in the figure: 1-Horizontal panel; 2-Front panel; 3-Side panel; 4-Bay window frame; 5-Main platform; 6-Wall; 7-Precast slab mold; 701-Inner lining frame; 702-Inner lining plate; 703-Bottom hole rod; 704-Side hole rod; 705-Limiting beam; 706-Limiting block; 707-Supporting beam; 708-Clamping block one; 709-Clamping block two; 710-Clamping rod; 8-Expansion plug hole; 9-Bolt through hole; 10-Fasting bolt. Detailed Implementation

[0026] The technical solutions of the present utility model will be described in further detail below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] like Figures 1-7As shown, a prefabricated concrete bay window structure includes a horizontal panel 1, a front panel 2, and side panels 3. Two side panels 3 are symmetrically installed on a main platform 5. A firewall is fixedly connected inside the side panels 3, and the front panel 2 is connected to the outside of the side panels 3. The horizontal panel 1 is installed on top of the front panel 2 and the side panels 3. The horizontal panel 1, firewall, front panel 2, and side panels 3 constitute the bay window sill structure. A bay window frame 4 is installed on the main platform 5, and the bay window frame 4 wraps around the outside of the bay window sill structure.

[0028] The main platform 5 is set on the outside of the wall 6. A firewall is built on the main platform 5. The inside of the firewall is flush with the inside of the wall 6, and the top of the firewall is flush with the top of the horizontal panel 1.

[0029] The horizontal panel 1, the front panel 2, and the side panels 3 are all formed with expansion plug holes 8 and / or bolt through holes 9 using precast panel mold 7. The horizontal panel 1 has five bolt through holes 9, the front panel 2 has four bolt through holes 9 and three expansion plug holes 8, and the side panels 3 have three expansion plug holes 8. The two bolt through holes 9 on the side of the horizontal panel 1 closest to the wall 6 correspond to one expansion plug hole 8 at the top of the side panels 3 on each side. The three bolt through holes 9 on the side of the horizontal panel 1 furthest from the wall 6 correspond to the three expansion plug holes 8 at the top of the front panel 2 on each side. The four bolt through holes 9 on the front panel 2 correspond to the expansion plug holes 8 at the front of the side panels 3 on each side. An expansion plug is placed in the expansion plug hole 8, and a fastening bolt 10 is installed in the expansion plug. The fastening bolt 10 passes through the bolt through hole 9, and the fastening bolt 10 and the expansion plug cooperate to fix the horizontal panel 1, the front panel 2, and the side panels 3 together.

[0030] The precast slab mold 7 includes an inner frame 701, an inner substrate 702, a bottom hole rod 703, a side hole rod 704, a limiting beam 705, a limiting block 706, a support beam 707, and a clamping mechanism. The inner frame 701 is fixedly connected to the inner substrate 702 at the bottom. The inner frame 701 and the inner substrate 702 form a square frame structure with an opening at the top. The inner frame 701, the inner substrate 702, the bottom hole rod 703, and the side hole rod 704 are all made of soft rubber or soft plastic material and are integrally molded according to different slab sizes and hole requirements.

[0031] The square frame structure is provided in multiple sets, and each set of square frame structures is adapted to the casting size of the horizontal panel 1, the front panel 2, or the side panel 3.

[0032] like Figure 6 As shown, five bottom hole rods 703 are fixed on the inner lining plate 702 of the square frame structure used for casting the horizontal panel 1. Figure 2 As shown, the horizontal panel 1 has five bolt through holes 9 after it is cast and formed.

[0033] like Figure 7 As shown, four bottom hole rods 703 are fixed on the inner lining plate 702 of the square frame structure used for casting the upright panel 2, and three side hole rods 704 are fixed on the inner wall of one side inner lining frame 701 of the square frame structure used for casting the upright panel 2. Figure 3-4 As shown, after the upright panel 2 is cast and formed, it is provided with four bolt through holes 9 and three expansion plug holes 8 at the top.

[0034] A side hole rod 704 is fixed to the inner wall of one side of the inner lining frame 701 of the square frame structure used for casting the side panel 3. Two side hole rods 704 are fixed to the inner wall of the inner lining frame 701 on the adjacent side of the square frame structure used for casting the side panel 3. Figure 5 As shown, after the side facade 3 slab is cast and formed, it is provided with one expansion plug hole 8 at the top and two expansion plug holes 8 on the outer side.

[0035] Two limiting beams 705 are provided and symmetrically arranged. Two limiting blocks 706 are fixedly installed on each limiting beam 705. The inner side of the limiting block 706 blocks the support beam 707. The two support beams 707 are located inside the two limiting beams 705. The support beams 707 and the limiting beams 705 are both in close contact with the outer side of the inner lining frame 701. A clamping mechanism is installed between the two limiting beams 705. The clamping mechanism is located at the support beam 707.

[0036] The clamping mechanism includes a clamping block 708, a second clamping block 709, and a clamping rod 710. The first clamping block 708 is fixedly connected to one end of the clamping rod 710. The clamping rod 710 passes through the through hole on the second clamping block 709. The clamping rod 710 is a threaded rod, and a clamping nut is threaded onto the clamping rod 710. The clamping nut is located on the outside of the second clamping block 709. The first clamping block 708 and the second clamping block 709 are respectively located on the outside of the two limiting beams 705.

[0037] The construction principle of this utility model:

[0038] 1) Prepare a precast slab mold 7 with the required size for the bay window, and install the inner frame 701, the limiting beam 705, the support beam 707 and the clamping mechanism.

[0039] 2) Cut the reinforcing bars and check the dimensional deviation of the cut bars. The dimensional deviation should be within ±5mm. Tie and install the reinforcing bars in the precast slab mold 7. After installation, check the quality of the reinforcing bars and make a concealed record. The positional deviation of the reinforcing bars should be ≤5mm.

[0040] 3) Pour concrete according to the construction specifications, vibrate, smooth, and compact it. During troweling, place the alkali-resistant fiberglass mesh flat on the surface layer, pressing it 2-3mm below the concrete surface. Leave test blocks as required by the specifications. Before the concrete initially sets, perform a second troweling, paying attention to the flatness and penetration of the alkali-resistant fiberglass mesh, ensuring there is no warping or folding. Regularly check the flatness of the concrete, requiring a flatness deviation of ≤3mm.

[0041] 4) After the concrete reaches the design strength, remove the mold and check the molding condition and the dimensional deviation of the concrete slab. The dimensional deviation should be within ±5mm.

[0042] 5) Hoist and transport the precast concrete slabs, taking care to protect the finished products during the process and avoid excessive secondary repairs.

[0043] 6) First, install the two vertical precast panels (side panels 3). Note that adhesive mortar should be applied to the ends of the two side panels 3, but not to the bolt holes. Then, install the outer vertical precast panel (front panel 2). Tighten the bolts to the two side panels 3 through the reserved holes (bolt through holes 9) on the outer panel, and together with the pre-built inner firewall, form the four-sided maintenance support structure of the bay window.

[0044] 7) After the vertical bay window panel is firmly secured, apply adhesive mortar to the upper end of the vertical precast panel and install the horizontal precast panel (horizontal panel 1).

[0045] 8) Fill both vertical and horizontal joints with bonding mortar and press it firmly to prevent deformation, displacement, cracking, and water seepage.

[0046] This utility model is not limited to the above-described embodiments. Anyone should know that any structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.

[0047] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A prefabricated concrete bay window structure, characterized in that It includes a horizontal panel, a front panel, and a side panel. Two side panels are symmetrically installed on the main platform. A firewall is fixedly connected inside the side panel, and a front panel is connected to the outside of the side panel. A horizontal panel is installed on top of the front panel and the side panel. The horizontal panel, firewall, front panel, and side panel together form a bay window sill structure. The horizontal panels, front panels, and side panels are all formed with expansion plugs and / or bolt through holes using precast slab molds.

2. The prefabricated concrete bay window structure according to claim 1, characterized in that, The main platform is set on the outside of the wall, and a firewall is built on the main platform. The inside of the firewall is flush with the inside of the wall, and the top of the firewall is flush with the top of the horizontal panel.

3. The prefabricated concrete bay window structure according to claim 2, characterized in that, The main platform is equipped with a bay window frame, which wraps around the outside of the bay window sill structure.

4. The prefabricated concrete bay window structure according to claim 1, characterized in that, The precast slab mold includes an inner frame, an inner substrate, a limiting beam, and a support beam. The inner substrate is fixedly connected to the bottom of the inner frame. The inner frame and the inner substrate form a square frame structure with an opening at the top. There are multiple sets of square frame structures, and each set of square frame structures is adapted to the casting size of a horizontal panel, a front panel, or a side panel.

5. The prefabricated concrete bay window structure according to claim 4, characterized in that, The horizontal panel is cast using a square frame structure with five bottom hole rods fixed on the inner substrate. After the horizontal panel is cast, it has five bolt through holes.

6. The prefabricated concrete bay window structure according to claim 4, characterized in that, The inner lining plate of the square frame structure used for casting the upright panel is fixed with four bottom hole rods, and the inner wall of the inner lining frame of one side of the square frame structure used for casting the upright panel is fixed with three side hole rods. After the upright panel is cast, it is provided with four bolt through holes and three expansion plug holes at the top.

7. The prefabricated concrete bay window structure according to claim 4, characterized in that, The inner wall of one side of the square frame structure used for casting the side panel is fixed with a side hole rod, and the inner wall of the adjacent side of the square frame structure used for casting the side panel is fixed with two side hole rods. After the side panel is cast, it has one expansion plug hole at the top and two expansion plug holes on the outer side.

8. The prefabricated concrete bay window structure according to claim 4, characterized in that, The limiting beam is provided in two symmetrical arrangements, and two limiting blocks are fixedly installed on each limiting beam. The inner side of the limiting block blocks blocks the support beam. The two support beams are located inside the two limiting beams. The support beams and limiting beams are both tightly attached to the outside of the inner lining frame. A clamping mechanism is installed between the two limiting beams, and the clamping mechanism is located at the support beam.

9. The prefabricated concrete bay window structure according to claim 8, characterized in that, The clamping mechanism includes a clamping block one, a clamping block two, and a clamping rod. The clamping block one is fixedly connected to one end of the clamping rod. The clamping rod passes through the through hole on the clamping block two. The clamping rod is a threaded rod, and a clamping nut is threadedly connected to the clamping rod. The clamping nut is located on the outside of the clamping block two. The clamping block one and the clamping block two are respectively set on the outside of the two limiting beams.

10. The prefabricated concrete bay window structure according to claim 1, characterized in that, An expansion plug is placed in the expansion plug hole, and a fastening bolt is installed in the expansion plug. The fastening bolt passes through the bolt through hole, and the fastening bolt and the expansion plug cooperate to fix the horizontal panel, the front panel and the side panel together.

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