A flue duct connecting support device and a method of installing the same

Abstract

The application provides a smoke exhaust pipe connecting supporting device and a mounting method thereof, and belongs to the technical field of building engineering. The device comprises a supporting device, which comprises a supporting structure and a water stop. The supporting structure comprises a cavity, an upper groove body and a lower groove body surrounding the cavity. The grooves of the upper groove body and the lower groove body are reversely arranged along the axial direction of the cavity. The water stop surrounds the supporting structure. The application integrates the functions of sealing, bearing, fire prevention and water prevention into one, and has the advantages of simple structure, easy construction, low manufacturing cost and good quality effect.

Description

Technical Field

[0001] This invention belongs to the field of building engineering technology, and in particular relates to a smoke exhaust duct connection support device and its installation method. Background Technology

[0002] Smoke exhaust ducts are an important component of building ventilation systems, and the support and sealing of their connections directly affect smoke extraction efficiency and safety. Existing smoke exhaust duct connection and support methods have the following drawbacks:

[0003] (1) Poor sealing performance: Cement grout is used to seal the pipe joints, which is prone to gaps due to pipe vibration and temperature changes;

[0004] (2) Insufficient load-bearing stability: The pipe is mainly supported by transverse threaded steel bars, resulting in poor stress balance.

[0005] (3) Insufficient fire and water resistance: The existing supporting structure has poor fire resistance and does not have waterproof performance, making it easy for water to seep into the floor. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides a smoke exhaust duct connection support device and its installation method. The device integrates sealing, load-bearing, fireproofing and waterproofing functions, and has a simple structure, is easy to construct, has low manufacturing cost and good quality.

[0007] The technical solution adopted in this invention is: a smoke exhaust pipe connection support device, including a support structure; the support structure includes a cavity and an upper groove and a lower groove surrounding the cavity, the groove openings of the upper groove and the lower groove are respectively arranged in opposite directions along the axial direction of the cavity.

[0008] Furthermore, it also includes a water-stopping element, which is arranged around the supporting structure and is used to be embedded in the floor slab.

[0009] Furthermore, the water-stopping component is at a first distance from the end of the upper groove body away from the lower groove body, and the first distance is greater than the depth at which the water-stopping component is to be embedded in the floor slab.

[0010] Furthermore, the water-stopping component has a second distance from the end of the lower groove body away from the upper groove body, and the second distance is equal to the thickness of the floor slab minus the depth to which the water-stopping component is to be embedded in the floor slab.

[0011] Furthermore, the supporting structure includes a first supporting component and a second supporting component; the upper groove is formed in the first supporting component; and the lower groove is formed in the second supporting component.

[0012] Furthermore, both the first and second support components include an inner wall panel, a sealing plate, and an outer wall panel; the inner wall panel encloses and forms the cavity, and the outer wall panel is parallel to and spaced apart from the inner wall panel; the two ends of the sealing plate are respectively connected to the same end of the inner wall panel and the outer wall panel.

[0013] Furthermore, the first and second bearing components are welded together via the sealing plate; the water-stop component is welded to the outer wall panel.

[0014] Furthermore, the upper and lower tanks are coated with a sealing material.

[0015] Furthermore, the surfaces of the supporting structure and the waterstop are coated with anti-corrosion and fire-retardant paint.

[0016] The installation method of the smoke exhaust duct connection support device as described above includes the following steps:

[0017] Assemble the first bearing insert, the second bearing insert, and the waterstop component into one unit;

[0018] Install water-stopping components at the designated locations on the floor slab to be poured;

[0019] Fill the upper and lower tanks with temporary sealing material;

[0020] Pour the concrete for the floor slab;

[0021] Remove the temporary sealing material and apply a sealing material to the upper tank and the lower tank.

[0022] Insert the upper exhaust pipe into the upper tank and the lower exhaust pipe into the lower tank.

[0023] The advantages and positive effects of this invention are:

[0024] (1) By setting up a support structure and water-stopping parts, the smoke exhaust pipe connection support device formed integrates sealing, load-bearing, fireproofing and waterproofing functions, and has the advantages of simple structure, easy construction, low production cost and good quality effect.

[0025] (2) The trench forms the positioning and fixing of the pipe body, and then the water-stopping parts form an overall force system of the supporting structure, floor and smoke exhaust pipe, making the smoke exhaust pipe more stable, less prone to displacement or deformation, and suitable for long-term use.

[0026] (3) By setting water-stopping components, a physical barrier is formed at the gap between the floor slab and the supporting structure, which can effectively cut off the seepage channel and achieve a good waterproof effect;

[0027] (4) By coating the upper and lower tanks with sealing material, the sealing effect of the exhaust pipe is ensured. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention;

[0029] Figure 2 This is a cross-sectional schematic diagram of a specific embodiment of the present invention;

[0030] Figure 3 This is a top view schematic diagram of a specific embodiment of the present invention.

[0031] In the picture:

[0032] 1. Supporting device; 2. Smoke exhaust pipe; 3. Floor slab; 4. First supporting component; 5. Second supporting component; 6. Water-stopping component; 7. Sealing material; 8. Outer wall panel; 9. Inner wall panel; 10. Sealing plate. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0035] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0036] like Figures 1 to 3As shown in the figure, this embodiment of the invention proposes a smoke exhaust duct connection support device 1, including a support structure. The support structure includes a cavity and an upper groove and a lower groove surrounding the cavity. The groove openings of the upper groove and the lower groove are respectively arranged in opposite directions along the axial direction of the cavity. The smoke exhaust duct 2 is formed by splicing multiple pipe sections along the height direction of the building. The support structure is used to support the pipe. The support structure has a cavity and is provided with an upper groove and a lower groove. The cavity is used to form a continuous smoke exhaust channel together with the pipe to ensure smooth exhaust of fumes. The axial direction of the cavity is the same as the axial direction of the pipe. The upper groove and the lower groove are respectively provided with grooves, which are the openings of the grooves. The pipe can be inserted into the groove through the groove, so that the groove forms a positioning and fixing of the pipe. Through this setting, gaps can be effectively avoided at the connection between the upper and lower pipes, ensuring the sealing of the smoke exhaust channel.

[0037] It can be understood that the tube set between two adjacent floor slabs 3 has its top end inserted into the lower groove of the support structure on the upper floor slab 3 and its bottom end inserted into the upper groove of the support structure on the lower floor slab 3. The weight of the tube is transferred to the lower floor slab 3 and also to the tube on the next floor through the support structure. This transfer is carried out layer by layer from top to bottom, eventually forming a stable support system.

[0038] Optionally, the shape of the cavity is adapted to the hollow structure of the exhaust pipe 2; the opening width of the upper and lower grooves is adapted to the wall thickness of the exhaust pipe 2; preferably, the opening width of the upper and lower grooves is slightly larger than the wall thickness of the exhaust pipe, so that the exhaust pipe 2 can be smoothly inserted into the pipe body.

[0039] Furthermore, in this embodiment, the smoke exhaust pipe 2 connecting the support device 1 also includes a water-stopping element 6. The water-stopping element 6 is surrounded by the support structure and is used to be embedded in the floor slab 3. The end of the water-stopping element 6 away from the support structure is used to be set inside the floor slab 3, so that the floor slab 3, the water-stopping element 6 and the support structure are connected as one, forming a physical barrier at the gap between the floor slab 3 and the support structure, which can effectively cut off the seepage channel, thereby preventing water from flowing from the top of the floor slab 3 along the connection between the two into the room on the next floor, achieving a good waterproof effect.

[0040] Meanwhile, the installation of the water-stop component 6 also forms a fixation for the overall support device 1, making it more stable and less prone to shaking and displacement, thereby improving the stability of the smoke exhaust pipe 2; on the other hand, the weight of the upper layer pipe can be transferred to the water-stop component 6 through the upper groove, and further transferred to the floor slab 3 through the water-stop component 6, so that the floor slab 3 and the support device 1 together form a support for the upper layer pipe, thereby further improving the stable support of the smoke exhaust pipe 2.

[0041] Optionally, the aforementioned supporting structure and water-stopping component 6 are manufactured according to the specifications of the smoke exhaust duct 2, and can be either an integrated component or a separate structure.

[0042] Preferably, the aforementioned waterstop 6 adopts a plate-like structure, is arranged along the axial direction perpendicular to the cavity, and surrounds the supporting structure for a circumference, and has a set width, so that the end away from the supporting structure can extend into the floor slab 3 to achieve a good waterproof effect.

[0043] Furthermore, in this embodiment, the water-stopping component 6 has a first distance from the end of the upper groove body away from the lower groove body, and the first distance is greater than the depth at which the water-stopping component 6 is to be embedded in the floor slab 3. Specifically, when the water-stopping component 6 is embedded in the floor slab 3, its embedding depth is the distance between the water-stopping component 6 and the top surface of the floor slab 3. With this setting, the end of the upper groove body away from the lower groove body can protrude out of the floor slab 3. Compared with the embodiment where the end of the upper groove body away from the lower groove body is flush with or recessed into the floor slab 3, it can prevent water accumulation on the floor slab 3 from entering the connection between the upper groove body and the smoke exhaust pipe 2, and avoid the smoke exhaust pipe 2 being soaked in water, which would affect the structural safety and stability.

[0044] Optionally, the aforementioned support structure has a height arranged along the axial direction of the cavity; the connection position of the aforementioned water-stopping member 6 and the weight structure is such that the distance between it and the end of the upper tank away from the lower tank meets the requirement of the first distance; preferably, the setting of the first distance takes into account the possible water accumulation depth.

[0045] Furthermore, in this embodiment, the waterstop 6 has a second distance from the end of the lower groove body away from the upper groove body. The second distance is equal to the thickness of the floor slab 3 minus the depth to which the waterstop 6 is to be embedded in the floor slab 3. With this setting, when the waterstop 6 is embedded in the floor slab 3, the end of the lower groove body away from the upper groove body is exactly flush with the floor slab 3, so as to achieve a good appearance effect and avoid obstructing the room decoration.

[0046] Optionally, the supporting structure has a set height, which is the length along the axial direction of the cavity. After the water-stop 6 is connected to the supporting structure, the distances from the two ends of the supporting structure in the height direction are A and B, respectively. The thickness of the floor slab 3 is C, and the water-stop 6 is to be embedded in the floor slab 3 at a depth of D. Where A > D, its corresponding end is provided with an upper groove; B = CD, its corresponding end is provided with a lower groove. This can be achieved as long as the height of the supporting structure is greater than the thickness of the floor slab 3.

[0047] Preferably, the waterstop 6 is embedded in the middle of the thickness of the floor slab 3, so that the connection between the waterstop 6 and the floor slab 3 is stable and has a good waterproof effect. At this time, the distance between the waterstop 6 and the end of the upper groove that is away from the lower groove is greater than the distance between the waterstop 6 and the end of the lower groove that is away from the upper groove. That is to say, the waterstop 6 is not set in the middle of the height direction of the supporting structure, but closer to the end of the lower groove.

[0048] Furthermore, in this embodiment, the supporting structure includes a first supporting component 4 and a second supporting component 5; the upper groove is formed in the first supporting component 4; and the lower groove is formed in the second supporting component 5. That is, the supporting structure is a modular structure, with the first supporting component 4 and the second supporting component 5 being independent components. This design reduces the difficulty of manufacturing the supporting structure, allowing the first supporting component 4 and the second supporting component 5 to be mass-produced in a factory and then transported to the construction site for assembly.

[0049] Optionally, the first support member 4 and the second support member 5 are closed ring structures with concave cross-sections; the enclosing shape of the first support member 4 and the second support member 5 is set according to the cross-sectional shape of the exhaust pipe 2; for example, when the cross-sectional shape of the exhaust pipe 2 is circular, the first support member 4 and the second support member 5 are circular ring structures with concave cross-sections; when the cross-sectional shape of the exhaust pipe 2 is rectangular, the first support member 4 and the second support member 5 are rectangular ring structures with concave cross-sections.

[0050] Preferably, when the cross-sectional shape of the exhaust pipe 2 is rectangular, the first support component 4 and the second support component 5 are both composed of four long strip structures with concave cross-sections, which makes it easier to process and manufacture, and after on-site assembly, the upper and lower grooves are connected to form a continuous annular groove.

[0051] Furthermore, in the above embodiments, both the first support component 4 and the second support component 5 include an inner wall plate 9, a sealing plate 10, and an outer wall plate 8; the inner wall plate 9 encloses a cavity, and the outer wall plate 8 is parallel to and spaced apart from the inner wall plate 9; the two ends of the sealing plate 10 are respectively connected to the same end of the inner wall plate 9 and the outer wall plate 8, forming a U-shaped groove. The outer wall plate 8, the sealing plate 10, and the inner wall plate 9 all have a certain thickness, so that when the three are connected, they form a closed ring structure with a concave cross-section.

[0052] Optionally, the inner wall panel 9, the sealing plate 10, and the outer wall panel 8 are all made of galvanized steel sheet, and the sealing plate 10 is welded to the same end of the inner wall panel 9 and the outer wall panel 8 to form a trough structure with one end open.

[0053] Furthermore, in the above embodiment, the first support plug 4 and the second support plug 5 are welded together by the sealing plate 10, so that the first support plug 4 and the second support plug 5 form an integral structure, and the slots of the upper and lower grooves face opposite directions in the height direction of the supporting structure.

[0054] Furthermore, in the above embodiments, the waterstop 6 is also made of galvanized steel sheet and welded to the second upper wall plate and / or the second lower wall plate. The welding position of the waterstop 6 is set according to its embedment depth, so that when the waterstop plate is pre-embedded in the floor slab 3, the top of the first support 4 protrudes from the floor slab 3, and the bottom of the second support 5 is flush with the floor slab 3; both the supporting structure and the waterstop 6 are made of common materials, resulting in low manufacturing costs.

[0055] Optionally, the waterstop plate is set at the connection between the first support member 4 and the second support member 5, and the three are welded to form an integral structure. With this setting, the height of the first support member 4 and the second support member 5 can be set according to the thickness of the floor slab 3 and the pre-embedded depth of the waterstop 6, which is more conducive to the accurate positioning of the waterstop 6 and ensures the accurate position of the support device 1.

[0056] Furthermore, the upper and lower troughs are coated with sealing material 7. When the exhaust pipe 2 is inserted into the upper and lower troughs, the sealing material 7 can fill the gap between the exhaust pipe 2 and the trough, which on the one hand acts as an adhesive, improving the connection stability between the exhaust pipe 2 and the upper and lower troughs; on the other hand, it forms a sealing effect, which can effectively prevent oil fumes from overflowing from the gap between the exhaust pipe 2 and the trough, avoiding oil fume leakage and odor diffusion.

[0057] Furthermore, in this embodiment, the surfaces of the supporting structure and the waterstop 6 are coated with anti-corrosion and fire-retardant paint, giving them good anti-corrosion and fire-retardant properties. The surfaces of the supporting structure and the waterstop 6 include the surface of the first wall panel near the cavity, the surface of the second wall panel near the floor slab 3, and the upper and lower surfaces of the waterstop 6.

[0058] This application also proposes an installation method for the above-mentioned smoke exhaust duct connection support device, including the following steps:

[0059] S1. Assemble the first bearing insert 4, the second bearing insert 5, and the waterstop 6 into one unit;

[0060] In this embodiment, the inner wall panel 9, the sealing plate 10 and the outer wall panel 8 are welded together to form the first support component 4 and the second support component 5. Then, the two sealing plates 10 are welded together to form a support structure. Finally, the water-stopping component 6 is welded to the outside of the support structure to form an integral support device 1.

[0061] In this embodiment, the waterstop plate is welded to the connection between the first bearing plug 4 and the second bearing plug 5 to ensure that the weld at the connection between the three is full, smooth, and leak-proof.

[0062] S2. Install the waterstop 6 at the designated position of the floor slab 3 to be poured;

[0063] In this embodiment, when the floor slab 3 is being reinforced, the waterstop 6 is connected to the reinforcing bars of the floor slab 3 to form a temporary fixation.

[0064] In this embodiment, the water-stopping element 6 is located in the middle of the thickness of the floor slab 3.

[0065] S3. Fill the upper and lower tanks with temporary sealing material;

[0066] In this embodiment, foam board is used as a temporary sealing material to fill the upper and lower tanks to prevent concrete from flowing into the upper and lower tanks during concrete pouring and obstructing the installation of the exhaust pipe 2.

[0067] S4, pour concrete for floor slab 3;

[0068] S5. Remove the temporary sealing material and apply sealing material 7 to the upper and lower tanks;

[0069] After the concrete is poured, the foam board can be removed, and sealant can be applied to the upper and lower tanks.

[0070] S6. Insert the upper exhaust pipe 2 into the upper tank and the lower exhaust pipe 2 into the lower tank.

[0071] When the exhaust pipe 2 is inserted into the groove, some sealant will overflow. After the exhaust pipe 2 is inserted into the groove, the overflowing sealant needs to be pressed and smoothed.

[0072] After completing the construction of all floors and smoke exhaust duct 2 in accordance with the above steps, an air pressure seal test can be carried out to ensure that smoke exhaust duct 2 has good air tightness.

[0073] The advantages and positive effects of this invention are:

[0074] (1) By setting up a support structure and water-stopping parts, the smoke exhaust pipe connection support device formed integrates sealing, load-bearing, fireproofing and waterproofing functions, and has the advantages of simple structure, easy construction, low production cost and good quality effect.

[0075] (2) The trench forms the positioning and fixing of the pipe body, and then the water-stopping parts form an overall force system of the supporting structure, floor and smoke exhaust pipe, making the smoke exhaust pipe more stable, less prone to displacement or deformation, and suitable for long-term use.

[0076] (3) By setting water-stopping components, a physical barrier is formed at the gap between the floor slab and the supporting structure, which can effectively cut off the seepage channel and achieve a good waterproof effect;

[0077] (4) By coating the upper and lower tanks with sealing material, the sealing effect of the exhaust pipe is ensured.

[0078] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A smoke exhaust duct connection support device, characterized in that: It includes a support structure; the support structure includes a cavity and an upper groove and a lower groove surrounding the cavity, the groove openings of the upper groove and the lower groove being arranged in opposite directions along the axial direction of the cavity.

2. The smoke exhaust duct connection support device according to claim 1, characterized in that: It also includes a water-stopping component, which is surrounded by the supporting structure and is used to be embedded in the floor slab.

3. The smoke exhaust duct connection support device according to claim 2, characterized in that: The waterstop component is at a first distance from the end of the upper groove body away from the lower groove body, and the first distance is greater than the depth at which the waterstop component is to be embedded in the floor slab.

4. The smoke exhaust duct connection support device according to claim 2 or 3, characterized in that: The waterstop component has a second distance from the end of the lower groove body away from the upper groove body. The second distance is equal to the thickness of the floor slab minus the depth to which the waterstop component is to be embedded in the floor slab.

5. The smoke exhaust duct connection support device according to claim 4, characterized in that: The supporting structure includes a first supporting component and a second supporting component; the upper groove is formed in the first supporting component; and the lower groove is formed in the second supporting component.

6. The smoke exhaust duct connection support device according to claim 5, characterized in that: Both the first and second support components include an inner wall panel, a sealing plate, and an outer wall panel; the inner wall panel encloses and forms the cavity, and the outer wall panel is parallel to and spaced apart from the inner wall panel; the two ends of the sealing plate are respectively connected to the same end of the inner wall panel and the outer wall panel.

7. The smoke exhaust duct connection support device according to claim 6, characterized in that: The first and second bearing components are welded together via the sealing plate; the water-stop component is welded to the outer wall panel.

8. The smoke exhaust duct connection support device according to claim 1 or 7, characterized in that: The upper and lower tanks are coated with sealing material.

9. The smoke exhaust duct connection support device according to claim 1, characterized in that: The surfaces of the supporting structure and the water-stopping component are coated with anti-corrosion and fire-retardant paint.

10. The installation method of the smoke exhaust duct connection support device as described in any one of claims 1-9, characterized in that, Includes the following steps: Assemble the first bearing insert, the second bearing insert, and the waterstop component into one unit; Install water-stopping components at the designated locations on the floor slab to be poured; Fill the upper and lower tanks with temporary sealing material; Pour the concrete for the floor slab; Remove the temporary sealing material and apply a sealing material to the upper tank and the lower tank. Insert the upper exhaust pipe into the upper tank and the lower exhaust pipe into the lower tank.

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