Leak-proof adjustable flue connection device

Abstract

The utility model discloses a kind of adjustable flue connecting devices of anti-leakage, the device includes upper precast block, lower precast block, shear wall, floor, upper flue and lower flue, the corner of shear wall and floor top is equipped with upper flue, the corner of shear wall and floor below is equipped with lower flue, and upper flue and lower flue are interconnected;Lower precast block is equipped between the upper flue and lower flue with the floor, the lower precast block top is slidably connected with multiple upper precast blocks, the upper precast block is slidably displaced on lower precast block, the gap size between its inner wall and flue outer wall can be flexibly adjusted, in turn effectively guarantee the sealing property of flue connecting portion, prevent the appearance leakage phenomenon, can simultaneously adapt to different size flue.

Description

Technical Field

[0001] This utility model belongs to the field of building technology, and more specifically, relates to a leak-proof adjustable flue connection device. Background Technology

[0002] With social development and the continuous improvement of urban living standards, people's requirements for indoor living environments are also increasing. In modern buildings, the flue system is an important component of areas such as kitchens and bathrooms, used to exhaust fumes and waste gases. Existing flue structures typically have square flue openings pre-installed at the corners of the floor slabs in each kitchen and bathroom, with the flue itself being a prefabricated square pipe. During installation, gaps form between the flue and the floor slab, which need to be sealed to ensure the flue system's airtightness and leak-proof performance. However, current technology usually uses concrete to seal these gaps, a method with significant shortcomings. Specifically, when the flue penetrates the wall, the filling of the pre-reserved holes is often not dense enough, leading to the formation of water seepage channels in the concrete later, causing leakage problems. Furthermore, during secondary concrete pouring, insufficient compaction due to vibration or the formation of cold joints can also easily lead to leakage. These problems not only affect the building's waterproofing performance but may also adversely impact the living environment and reduce residents' quality of life. Therefore, existing technologies have significant shortcomings in terms of sealing and leak-proof performance at flue connections, requiring a more reliable, efficient, and adaptable solution to meet people's demands for a high-quality living environment. Utility Model Content

[0003] To address the aforementioned deficiencies or improvement needs of existing technologies, this utility model provides a leak-proof adjustable flue connection device. The lower precast block is stably attached to the floor slab via its L-shaped mounting groove, significantly enhancing the structural stability of the entire device. This also improves installation convenience and efficiency, effectively reducing installation time and labor intensity, and ensuring installation accuracy. The design of the lower precast block's top being higher than the floor slab effectively prevents moisture leakage to the floor below, further ensuring the sealing of the flue connection and providing strong protection for the building's waterproof performance. Furthermore, the sliding block of the upper precast block adapts to the sliding groove of the lower precast block, allowing flexible adjustment of the gap between its inner wall and the flue. This not only reduces the gap at the flue connection, significantly improving leak-proof performance, but also allows it to adapt to flues of different sizes and minor deviations that may occur during construction, ensuring smooth installation.

[0004] To achieve the above objectives, this utility model proposes a leak-proof adjustable flue connection device, comprising an upper precast block, a lower precast block, a shear wall, a floor slab, an upper flue, and a lower flue; wherein,

[0005] An upper flue is installed at the corner above the shear wall and floor slab, and a lower flue is installed at the corner below the shear wall and floor slab, with the upper and lower flues connected to each other.

[0006] The upper and lower flues are provided with a lower precast block between them and the floor slab. Multiple upper precast blocks are slidably connected to the top of the lower precast block. The upper precast block can flexibly adjust the gap between its inner wall and the outer wall of the flue by sliding displacement on the lower precast block, thereby effectively ensuring the sealing of the flue connection and preventing leakage. It can also adapt to flues of different sizes.

[0007] Furthermore, the lower prefabricated block includes an overlapping block, a connecting block, and an L-shaped mounting groove. The overlapping block and the connecting block are both hollow rectangular structures that run vertically through each other. They form a vertically overlapping layout in space. The bottom of the overlapping block is fixedly connected to the connecting block, and the inner sidewalls of the overlapping block and the connecting block are flush. The outer sidewalls of the two form an L-shaped mounting groove.

[0008] Furthermore, the lower prefabricated block also includes two sliding grooves formed at the top of each side of the overlapping block.

[0009] Furthermore, the top of the lower precast block is higher than the top of the floor slab, and the bottom of the lower precast block is flush with the bottom of the floor slab.

[0010] Furthermore, the upper precast block is an isosceles trapezoidal structure with two sliding blocks spaced apart at its bottom, and the two sliding blocks are adapted to the sliding groove.

[0011] Furthermore, both the upper and lower precast blocks are made according to the size of the reserved holes in the floor slab. Before installing the lower precast block, the concrete surface around the reserved holes in the floor slab and the corresponding position of the shear wall is chiseled and cleaned to remove slag, dust, and oil stains, so as to ensure that no cavity will appear when sealing later.

[0012] Furthermore, before installing the lower precast blocks, apply a special sealing material to the corresponding installation locations on the floor slab and shear wall.

[0013] Furthermore, the outer walls of the upper and lower flues are connected to the lower precast blocks using an adhesive. After the upper and lower flues are installed, the upper precast blocks are adjusted so that their side walls abut against the outer wall of the upper flue, and the gaps are sealed with special sealing material. After the sealing material dries, a layer of polyurethane coating is applied to its surface.

[0014] Furthermore, the special sealing materials include, but are not limited to, waterproof mortar, gypsum, or expanded fine aggregate concrete.

[0015] Furthermore, the upper precast block and the lower precast block are made of precast concrete.

[0016] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects:

[0017] (1) The leak-proof adjustable flue connection device of this utility model has a lower precast block that is stably attached to the floor slab through its L-shaped installation groove, which enhances the structural stability of the entire device, improves the convenience and efficiency of installation, effectively reduces installation time and labor intensity, and ensures the accuracy of installation. In addition, the bottom of the lower precast block is flush with the bottom of the floor slab, making the entire device look neater and more beautiful after installation, and blending with the surrounding building structure, which enhances the overall visual effect. The design that the top of the lower precast block is higher than the top of the floor slab effectively prevents water from seeping to the floor below, further ensuring the sealing of the flue connection part and providing a strong guarantee for the waterproof performance of the building.

[0018] (2) The leak-proof adjustable flue connection device of this utility model can flexibly adjust the gap between its inner wall and the flue by matching the sliding block of the upper precast block with the sliding groove of the lower precast block. This not only reduces the gap at the flue connection, significantly improving the leak-proof performance, but also allows it to adapt to flues of different sizes and minor deviations that may occur during construction, ensuring smooth installation. In addition, the use of special sealing materials to seal the gaps further improves the airtightness of the connection.

[0019] (3) Before installing the lower precast block, the adjustable flue connection device of this utility model applies a special sealing material to the corresponding installation positions of the floor slab and shear wall, which can effectively fill the small pores and uneven areas, ensuring that the lower precast block forms a tight connection with the floor slab and shear wall. After the sealing material dries, a layer of polyurethane coating is applied to its surface to further enhance the sealing of the connection. In addition, a waterproof mortar layer is laid on the top of the floor slab and leveled to improve the anti-leakage performance of the floor slab. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the installation structure of an adjustable anti-leakage flue connection device according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of a leak-proof adjustable flue connection device according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the upper prefabricated block of a leak-proof adjustable flue connection device according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the lower prefabricated block of a leak-proof adjustable flue connection device according to an embodiment of the present invention.

[0024] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-upper precast block, 11-sliding block, 2-lower precast block, 21-overlapping block, 22-connecting block, 23-sliding groove, 24-L-shaped installation groove, 3-shear wall, 4-floor slab, 5-upper flue, 6-lower flue. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0028] In this patent, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0029] Example 1

[0030] like Figure 1-4 As shown in the figure, this embodiment provides a leak-proof adjustable flue connection device, including an upper precast block 1, a lower precast block 2, a shear wall 3, a floor slab 4, an upper flue 5, and a lower flue 6. The upper flue 5 is installed at the corner above the shear wall 3 and the floor slab 4, and the lower flue 6 is installed at the corner below the shear wall 3 and the floor slab 4. The upper flue 5 and the lower flue 6 are interconnected. A lower precast block 2 is provided between the upper flue 5, the lower flue 6, and the floor slab 4. Multiple upper precast blocks 1 are slidably connected to the top of the lower precast block 2. The upper precast blocks 1 can flexibly adjust the gap between their inner walls and the outer walls of the flue by sliding on the lower precast blocks 2, thereby effectively ensuring the sealing of the flue connection and preventing leakage. It also meets the diverse needs for flue connection gaps in different installation scenarios. The adjustable design of this device allows it to adapt to flues of different sizes, making it widely applicable.

[0031] Furthermore, the lower prefabricated block 2 includes an overlapping block 21, a connecting block 22, and a sliding groove 23; wherein, the overlapping block 21 and the connecting block 22 are both hollow rectangular structures that run vertically through each other, forming a vertically overlapping layout in space. The bottom of the overlapping block 21 is fixedly connected to the connecting block 22, and the inner sidewalls of the overlapping block 21 and the connecting block 22 are flush. The outer sidewalls of the two form an L-shaped installation groove 24, which enables the lower prefabricated block 2 to be stably overlapped on the floor slab 4, significantly improving the structural stability of the entire device. Secondly, the L-shaped installation groove 24 enables the lower prefabricated block 2 to be quickly and accurately installed on the floor slab 4, greatly simplifying the installation process and improving installation efficiency.

[0032] Furthermore, each side of the overlapping block 21 has two sliding grooves 23 at its top for sliding connection with the upper precast block 1. This allows the upper precast block 1 to flexibly adjust the gap between its inner wall and the flue as needed, further improving the convenience and adaptability of installation, effectively reducing the gap at the flue connection point, and significantly improving the anti-leakage performance. In addition, the adjustable design of this device allows it to adapt to flues of different sizes, making it widely applicable.

[0033] Furthermore, the upper precast block 1 is an isosceles trapezoidal structure with two sliding blocks 11 spaced apart at its bottom. The two sliding blocks 11 are adapted to the sliding groove 23, allowing the upper precast block 1 to move along the sliding groove 23, thereby moving away from or closer to the upper flue 5. This adjusts the relative position between the upper precast block 1 and the upper flue 5, enabling dynamic adjustment of the relative position between the top precast block 1 and the flue. This effectively controls the gap between them, allowing it to adapt to flues of different sizes. Consequently, it can fit more tightly against the outer wall of the flue, enhancing the sealing at the connection between the flue and the floor slab and improving the reliability of the device.

[0034] Furthermore, the top of the lower precast block 2 is higher than the top of the floor slab 4, which can effectively prevent water from seeping downstairs and avoid problems such as dampness and mold on the downstairs walls caused by leakage. The bottom of the lower precast block 2 is flush with the bottom of the floor slab 4, so that the entire device has a cleaner and more beautiful appearance after installation, and is integrated with the floor slab structure, improving the overall visual effect and making it more harmonious and unified in appearance.

[0035] Furthermore, the upper precast block 1 and the lower precast block 2 are made of precast concrete.

[0036] Furthermore, both the upper precast block 1 and the lower precast block 2 are made according to the size of the reserved hole in the floor slab 4. Before installing the lower precast block 2, the concrete surface around the reserved hole in the floor slab 4 and the corresponding position of the shear wall 3 are chiseled. The concrete surface after chiseling is cleaned to remove impurities such as scum, dust, and oil stains, so as to ensure that no cavity will appear when sealing later.

[0037] Furthermore, before installing the lower precast block 2, a special sealing material is applied to the corresponding installation positions on the floor slab 4 and shear wall 3. This effectively fills the tiny pores and uneven areas on the surfaces of the floor slab 4 and shear wall 3. When the lower precast block 2 is installed, this sealing material ensures a tight connection between the lower precast block 2 and the floor slab 4 and shear wall 3, thereby significantly improving the airtightness of the connection and effectively preventing moisture and flue gas leakage. In addition, the sealing material provides a certain structural strength after curing, enhancing the stability of the entire connection device.

[0038] Furthermore, the connection between the upper flue 5 and the lower flue 6 is located in the middle of the floor slab cross-section. The outer walls of both are connected to the lower precast block 2 with an adhesive. After the upper flue 5 and the lower flue 6 are installed, the upper precast block 1 is adjusted so that its side wall abuts against the outer wall of the upper flue 5, and the gap is sealed with a special sealing material. After the sealing material dries, a layer of polyurethane coating is applied to its surface to ensure the sealing of the entire flue connection.

[0039] Furthermore, the special sealing materials include, but are not limited to, waterproof mortar, gypsum, or expanded fine aggregate concrete.

[0040] Furthermore, a waterproof mortar layer is laid on the top of the floor slab 4, and the floor slab 4 is leveled using the waterproof mortar, thereby further enhancing the anti-seepage performance of the floor slab 4.

[0041] In another embodiment of this utility model, an installation method for a leak-proof adjustable flue connection device is provided. First, according to the size of the reserved hole in the floor slab 4, an upper precast block 1 and a lower precast block 2 are fabricated. Next, the concrete surface around the reserved hole in the floor slab 4 and at the corresponding position in the shear wall 3 is chiseled and cleaned to remove impurities such as scum, dust, and oil. Then, a special sealing material is applied to the corresponding installation positions in the floor slab 4 and the shear wall 3, and an adhesive is applied to the inner wall of the lower precast block 2. Finally, the lower precast block 2 is installed, so that the lower precast block... The L-shaped mounting groove 24 of block 2 is stably attached to the floor slab 4, ensuring that the bottom of the lower precast block 2 is flush with the bottom of the floor slab 4 and the top of the lower precast block 2 is higher than the top of the floor slab 4. Then, by adjusting the position of the upper precast block 1 and the outer wall of the upper flue 5, the inner wall of the upper precast block 1 abuts against the outer wall of the upper flue 5, and the gap is sealed with special sealing material. After the sealing material dries, a layer of polyurethane coating is applied to its surface. Finally, a waterproof mortar layer is laid on the top of the floor slab 4 and leveled with waterproof mortar to further enhance the anti-leakage performance of the floor slab 4.

[0042] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A leak-proof adjustable flue connection device, characterized in that, It includes upper precast blocks (1), lower precast blocks (2), shear walls (3), floor slabs (4), upper flue (5), and lower flue (6); among which, An upper flue (5) is installed at the corner above the shear wall (3) and the floor slab (4), and a lower flue (6) is installed at the corner below the shear wall (3) and the floor slab (4), and the upper flue (5) and the lower flue (6) are connected to each other. The upper flue (5) and lower flue (6) are provided with a lower precast block (2) between them and the floor slab (4). The top of the lower precast block (2) is slidably connected to a plurality of upper precast blocks (1). The upper precast block (1) can flexibly adjust the gap between its inner wall and the outer wall of the flue by sliding displacement on the lower precast block (2), thereby effectively ensuring the sealing of the flue connection and preventing leakage. At the same time, it can adapt to flues of different sizes.

2. The leak-proof adjustable flue connection device according to claim 1, characterized in that, The lower prefabricated block (2) includes an overlapping block (21), a connecting block (22), and an L-shaped mounting groove (24). The overlapping block (21) and the connecting block (22) are both hollow rectangular structures that run vertically through each other. They form a vertically overlapping layout in space. The bottom of the overlapping block (21) is fixedly connected to the connecting block (22), and the inner sidewalls of the overlapping block (21) and the connecting block (22) are flush. The outer sidewalls of the two form an L-shaped mounting groove (24).

3. The leak-proof adjustable flue connection device according to claim 2, characterized in that, The lower precast block (2) also includes two sliding grooves (23) opened at the top of each side of the overlapping block (21).

4. The leak-proof adjustable flue connection device according to claim 3, characterized in that, The top of the lower precast block (2) is higher than the top of the floor slab (4), and the bottom of the lower precast block (2) is flush with the bottom of the floor slab (4).

5. The leak-proof adjustable flue connection device according to claim 4, characterized in that, The upper precast block (1) is an isosceles trapezoidal structure with two sliding blocks (11) spaced apart at its bottom. The two sliding blocks (11) are adapted to the sliding groove (23).

6. A leak-proof adjustable flue connection device according to any one of claims 1-5, characterized in that, Both the upper precast block (1) and the lower precast block (2) are made according to the size of the reserved hole in the floor slab (4). Before installing the lower precast block (2), the concrete surface around the reserved hole in the floor slab (4) and the corresponding position of the shear wall (3) are chiseled. The concrete surface after chiseling is cleaned to remove scum, dust and oil stains to ensure that no cavity will appear when sealing later.

7. A leak-proof adjustable flue connection device according to any one of claims 1-5, characterized in that, Before installing the lower precast block (2), apply special sealing material to the corresponding installation positions of the floor slab (4) and shear wall (3).

8. A leak-proof adjustable flue connection device according to any one of claims 1-5, characterized in that, The outer walls of the upper flue (5) and the lower flue (6) are connected to the lower precast block (2) with an adhesive. After the upper flue (5) and the lower flue (6) are installed, the upper precast block (1) is adjusted so that its side wall abuts against the outer wall of the upper flue (5), and the gap is sealed with special sealing material. After the sealing material dries, a layer of polyurethane coating is applied to its surface.

9. A leak-proof adjustable flue connection device according to claim 8, characterized in that, The special sealing materials include, but are not limited to, waterproof mortar, gypsum, or expanded fine aggregate concrete.

10. A leak-proof adjustable flue connection device according to any one of claims 1-5, characterized in that, The upper precast block (1) and the lower precast block (2) are made of precast concrete.

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