Mounting structure of vertical exhaust passage of house

Abstract

The utility model relates to a mounting structure of a house vertical exhaust passage, which comprises an exhaust passage, a connecting piece and a reserved hole, the exhaust passage comprises an upper exhaust passage and a lower exhaust passage, the lower exhaust passage is positioned at the lower part in the reserved hole, a deformed steel bar is fixedly connected in the reserved hole, and the top surface of the lower exhaust passage is positioned below the deformed steel bar. The connecting piece comprises two U-shaped notches which are symmetrically arranged up and down, the deformed steel bar penetrates through the lower U-shaped notch and bears the connecting piece, a cementing agent is injected into the U-shaped notches, the upper end part of the lower exhaust passage extends into the lower U-shaped notch, and the lower end part of the upper exhaust passage extends into the upper U-shaped notch. According to the utility model, the upper exhaust passage can be conveniently mounted after building slurry is poured into the gap, and the height error between the upper exhaust passage and the lower exhaust passage can be counteracted by a gap between the lower exhaust passage and the deformed steel bar.

Description

Technical Field

[0001] This utility model relates to the field of building construction, specifically to an installation structure for a vertical exhaust duct in a residential building. Background Technology

[0002] In residential buildings, the exhaust duct (also known as a chimney) system is an indispensable part. Its main function is to effectively remove fumes, moisture, and odors generated in areas such as kitchens and bathrooms, maintaining indoor air quality. However, in actual construction, traditional residential exhaust duct installation methods have revealed a series of significant quality problems and technical bottlenecks.

[0003] Firstly, traditional installation methods face challenges in connecting pre-existing structural openings with pre-fabricated exhaust ducts. Particularly near walls, the extremely narrow gap between the opening and the duct severely restricts operational space. Even using an extended hose with a foam injection gun for applying sealant cannot guarantee a proper seal, resulting in incomplete sealing. This not only affects the overall performance of the exhaust system but can also trigger a series of chain reactions, such as a decline in indoor air quality.

[0004] Secondly, due to insufficient consideration of potential vertical height errors during the installation of upper and lower exhaust ducts, existing technologies are inadequate in addressing the issue of loose joints between upper and lower exhaust ducts, easily leading to potential leaks such as air, oil, and water. These problems not only increase the cost of subsequent maintenance and repairs but also, to some extent, affect the overall lifespan of the building and the comfort of its inhabitants. Utility Model Content

[0005] To address the technical problems existing in the prior art, the purpose of this utility model is to provide an installation structure for a vertical exhaust duct in a residential building. By first installing the lower exhaust duct, threaded steel, and connectors, there is sufficient operating space in the gap to facilitate the pouring of building slurry into the gap before installing the upper exhaust duct. The upper exhaust duct is then installed on the threaded steel using H-shaped connectors. The gap between the lower exhaust duct and the threaded steel can compensate for the height error between the upper and lower exhaust ducts.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An installation structure for a vertical ventilation duct in a residential building includes a ventilation duct, a connector, and a reserved opening in the floor slab. The ventilation duct includes an upper ventilation duct and a lower ventilation duct. The lower ventilation duct is located at the lower part of the reserved opening. A horizontal threaded steel bar is fixedly connected in the reserved opening. The top surface of the lower ventilation duct is located below the threaded steel bar. The connector includes multiple support rods. Each support rod has an H-shaped longitudinal section and two symmetrical U-shaped slots. The threaded steel bar passes through the lower U-shaped slot and supports the connector. An adhesive is injected into the U-shaped slot. The upper end of the lower ventilation duct extends into the lower U-shaped slot, and the lower end of the upper ventilation duct extends into the upper U-shaped slot.

[0008] As a preferred embodiment, a gap is provided between the outer wall of the lower exhaust duct and the connector and the inner wall of the reserved opening, and the gap is filled with building grout.

[0009] As a preferred embodiment, there are four support rods arranged in a square shape, and the cross-section of the exhaust duct is also square.

[0010] As a preferred embodiment, at least one side of the inner wall of the square reserved opening is a wall surface, and a reserved insertion hole for steel bars is opened on the wall surface. The reserved insertion hole for steel bars is filled with adhesive, and one end of the threaded steel bar is inserted into the reserved insertion hole for steel bars.

[0011] As a preferred option, a steel mesh is installed inside the floor slab, extending into the gaps, and the other end of the threaded steel bar away from the wall is tied to the steel mesh.

[0012] As a preferred embodiment, an annular sealing strip is provided on the outer periphery of the lower exhaust duct, and the sealing strip seals the lower end of the gap.

[0013] As a preferred embodiment, the support rod also includes a horizontal base plate in the middle, which has multiple injection holes for injecting adhesive downwards.

[0014] As a preferred option, the support rod is made of aluminum profile.

[0015] As a preferred option, there are two threaded steel bars, and through slots are opened on the outer sides of the two parallel support rods through which the threaded steel bars pass.

[0016] As a preferred option, the top surface of the connector is flush with the top surface of the floor slab.

[0017] This utility model has the following advantages:

[0018] (1) By fixing transverse threaded steel bars in the reserved opening and using connectors with U-shaped grooves to firmly connect the upper and lower exhaust ducts together, the structural stability and load-bearing capacity of the entire exhaust duct system are improved. This design ensures that the exhaust duct will not shift or deform during long-term use.

[0019] (2) The steel mesh extends into the gap and is tied to the threaded steel to form an integral reinforcement system, which significantly improves the overall strength and seismic performance of the floor slab and the exhaust duct.

[0020] (3) By first installing the lower exhaust duct, threaded steel and connectors, there is enough operating space in the gap, which makes it convenient to pour building slurry into the gap before installing the upper exhaust duct. The upper exhaust duct is installed on the threaded steel through the H-shaped connectors. The gap between the lower exhaust duct and the threaded steel can offset the height error between the upper and lower exhaust ducts. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a top view of the installation structure of the residential vertical exhaust duct of this utility model.

[0023] Figure 2 for Figure 1 AA sectional view.

[0024] Figure 3 for Figure 2 Enlarged diagram of point C.

[0025] Figure 4 for Figure 1 BB cross-sectional view.

[0026] Figure 5 for Figure 4 Enlarged diagram of point D.

[0027] Figure 6 This is a top view schematic diagram of the connection between the threaded steel bar and the connector.

[0028] Figure 7 This is a structural schematic diagram of the connector.

[0029] The components include: 1. Connector; 2. Reserved opening; 3. Upper vent; 4. Lower vent; 5. Threaded steel bar; 6. Reserved insertion hole for reinforcing bar; 7. U-shaped groove; 8. Horizontal bottom plate; 9. Gap; 10. Reinforcing mesh; 11. Sealing strip; 12. Glue injection hole; 13. Through groove; 14. Floor slab; 15. Spacing; 16. First pouring area; 17. Second pouring area; 18. Support rod. Detailed Implementation

[0030] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] like Figures 1 to 7As shown, an installation structure for a vertical exhaust duct in a residential building is located near a wall. It includes an exhaust duct, a connector 1, and a pre-reserved opening 2 in the floor slab 14. The square-section exhaust duct includes an upper exhaust duct 3 and a lower exhaust duct 4. The lower exhaust duct 4 is located at the lower part of the pre-reserved opening 2. A transverse threaded steel bar 5 is fixedly connected inside the pre-reserved opening 2. Threaded steel bar 5 is a common name for hot-rolled ribbed steel bars. In this embodiment, preferably, the inner wall of the square pre-reserved opening 2 has two walls and the other two sides being the sides of the floor slab 14. Two steel bar pre-reserved insertion holes 6 are opened on one of the walls. In this embodiment, preferably, there are two threaded steel bars 5. Adhesive is injected into the steel bar pre-reserved insertion holes 6. The connector 1 consists of four support rods 18, each of which is an H-shaped aluminum profile forming a square. Each support rod 18 has two symmetrical U-shaped slots and a central horizontal base plate 8. The threaded steel 5 passes through the lower U-shaped slot 7 and supports the connector 1. The length direction of the threaded steel 5 is consistent with the length direction of the corresponding U-shaped slot. The top surface of the threaded steel 5 supports the horizontal base plate 8. The width of the U-shaped slot 7 is greater than the wall thickness of the exhaust channel. The connector 1 has a corresponding shape to the exhaust channel. The upper end of the lower exhaust channel 4 extends into the lower U-shaped slot 7. The lower end of the upper exhaust duct 3 extends into the upper U-shaped groove 7. The top surface of the lower exhaust duct 4 is located below the threaded steel bar 5. The lower exhaust duct 4 and the threaded steel bar 5 have a gap of 15 to compensate for the installation height error between the upper exhaust duct 3 and the lower exhaust duct 4, ensuring more accurate installation positioning of the upper exhaust duct 3 and the lower exhaust duct 4. An adhesive is injected into the U-shaped groove 7. In this embodiment, the adhesive is preferably foam adhesive to ensure a tight connection between the upper exhaust duct 3 and the lower exhaust duct 4. A gap 9 is provided between the outer wall of the lower exhaust duct 4 and the connector 1 and the inner wall of the reserved opening 2. Construction grout is poured into the gap 9. The gap 9 includes a first pouring area 16 and a second pouring area 17. The first pouring area 16 is between the outer wall of the lower exhaust duct 4 and the connector 1 and the side of the floor slab 14, and the second pouring area 17 is between the outer wall of the lower exhaust duct 4 and the connector 1 and the wall surface. The building grout includes fine stone concrete and mortar. Fine stone concrete is poured in the first pouring area 16, and mortar is poured in the second pouring area 17. Because the second pouring area 17 is adjacent to the wall, the operating space is small, and the corresponding gap 9 is also narrow. It is more convenient and denser to use mortar for sealing. The first pouring area 16 connects to the floor slab 14, and the corresponding gap is wider, with more operating space. Fine stone concrete can also better connect with the floor slab 14.

[0032] The bottom plate 8 has multiple injection holes 12 for injecting adhesive downwards. By directly injecting adhesive downwards through these injection holes 12, installation becomes simpler and faster, shortening the construction period. Simultaneously, the amount of adhesive injected can be observed through adjacent injection holes 12 to ensure sufficient adhesive is injected and guarantees the tightness of the installed structure.

[0033] In the above installation structure, during installation, the lower exhaust duct 4 is installed first. The lower end of the lower exhaust duct 4 typically abuts against the connector 1 on the next floor. Then, the threaded steel bar 5 is installed, followed by the connector 1 on the threaded steel bar 5. Before installing the upper exhaust duct 3, construction grout is poured into the gap 9 to seal the reserved opening 2. This operation is necessary because there is sufficient pouring space above the gap 9, and the pouring space is unrestricted, allowing construction workers to stand on the floor slab 14 to pour and fill the gap 9. This solves the problem of difficulty in pouring construction grout near the wall, ensuring a tight seal in the gap 9. Once the construction grout sealing the gap 9 reaches a certain strength, adhesive is injected into the lower U-shaped groove 7 through the injection hole 12. Adhesive is then injected into the U-shaped groove 7 above the connector 1, and the upper exhaust duct 3 is installed. This effectively avoids air leakage and oil seepage at the joint between the upper exhaust duct 3 and the lower exhaust duct 4. The structure is simple, the operation is easy and convenient, and it is conducive to widespread adoption.

[0034] A steel mesh 10 is installed within the floor slab 14, extending into the gap 9. The other end of the threaded steel bar 5, away from the wall, is tied to the steel mesh 10. The steel mesh 10 extending into the gap 9 and being tied to the threaded steel bar 5 forms an integrated reinforcement system, significantly improving the overall strength and seismic performance of the floor slab 14 and the ventilation duct.

[0035] A circular sealing strip 11 is provided on the outer periphery of the lower exhaust duct 4, which seals the lower end of the gap 9. The sealing strip 11 acts as a formwork support for the lower end of the gap 9, thereby realizing the formwork-free installation structure. When building grout is poured into the gap 9, the sealing strip 11 can prevent the building grout from flowing downward.

[0036] Two parallel support rods 18 have through slots 13 on their outer sides for threaded steel bars 5 to pass through. In this embodiment, only two threaded steel bars 5 are needed to support the upper exhaust duct 3, while the U-shaped slots 7 below the other two parallel support rods 18 do not require threaded steel bars 5. The connection between the upper and lower exhaust ducts cleverly uses a combination of two threaded steel bars 5 and an H-shaped connector 1. This simplified structural design allows operators to complete the installation work more quickly, reducing complex adjustment and calibration steps and improving the overall construction progress. In addition, this design also helps to reduce construction difficulty and reduce reliance on highly skilled workers.

[0037] The top surface of connector 1 is flush with the top surface of floor slab 14, which makes it easy to smooth the building mortar in gap 9. It is only necessary to make it flush with the top surface of floor slab 14, which is convenient and improves efficiency.

[0038] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A structure for installing a residential vertical exhaust duct, characterized by: The utility model provides an exhaust channel, connecting piece (1) and the reserved hole (2) of floor (14) set up, exhaust channel includes upper exhaust channel (3) and lower exhaust channel (4), lower exhaust channel (4) is located in the lower part in reserved hole (2), and the transverse screw steel (5) is fixedly connected in reserved hole (2), the top surface of lower exhaust channel (4) is located below screw steel (5), and connecting piece (1) includes a plurality of support bars (18), each support bar (18) is equipped with two U-shaped notches (7) that are symmetrical up and down, and screw steel (5) passes through the U-shaped notch (7) below and screw steel (5) bears connecting piece (1), U-shaped notch (7) is injected with cementing agent, and the upper end of lower exhaust channel (4) extends into the U-shaped notch (7) below, and the lower end of upper exhaust channel (3) extends into the U-shaped notch (7) above.

2. The installation structure of a residential vertical air vent according to claim 1, characterized by: The outer wall of lower exhaust channel (4) and connecting piece (1) and the inner wall of reserved hole (2) are provided with gap (9), and building slurry is poured in gap (9).

3. A mounting structure for a residential vertical air shaft according to claim 2, characterized in that: The number of support bars (18) is four, and the four support bars (18) enclose a square, and the cross section of the exhaust channel corresponds to a square.

4. A mounting structure for a residential vertical air passage according to claim 3, characterized in that: At least one side of the inner wall of square reserved hole (2) is a wall surface, the wall surface is provided with a steel bar reserved jack (6), the steel bar reserved jack (6) is injected with cementing agent, and one end of screw steel (5) is inserted into the steel bar reserved jack (6).

5. A mounting structure for a residential vertical air passage according to claim 4, characterized in that: A steel mesh (10) is arranged in the floor (14), the steel mesh (10) extends into the gap (9), and the other end of the screw steel (5) away from the wall is tied and connected to the steel mesh (10).

6. The installation structure of a residential vertical air vent according to claim 2, characterized by: A circular sealing strip (11) is arranged on the outer periphery of the lower exhaust channel (4), and the sealing strip (11) seals the lower end of the gap (9).

7. The installation structure of a residential vertical air vent according to claim 3, characterized by: The support bar (18) further includes a middle horizontal bottom plate (8), and a plurality of glue injection holes (12) are formed in the horizontal bottom plate (8) for injecting cementing agent downward.

8. The installation structure of a residential vertical air vent according to claim 3, characterized by: The support bar (18) is an aluminum profile.

9. The installation structure of a residential vertical air vent according to claim 3, characterized by: The number of screw steels (5) is two, and a through groove (13) is formed in the outer side of the two parallel support bars (18) for the screw steels (5) to pass through.

10. The installation structure of a residential vertical air vent according to claim 1, characterized by: The top surface of the connecting piece (1) is flush with the top surface of the floor (14).

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