Air pipe fixing structure capable of preventing roof waterproof protection layer from being damaged
By using crossbeams, legs, supports, and sleeve structures, combined with concrete curing and counterweight designs, the problem of damage to the waterproof layer caused by traditional duct fixing methods has been solved, achieving stable fixing and maintenance of waterproof performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional duct fixing methods can damage the roof's waterproof protective layer, leading to rainwater leakage and affecting the building's waterproof performance and service life.
It adopts a crossbeam, outrigger, support and sleeve structure, and uses the solidification of concrete to form an integral structure. The bottom of the sleeve abuts against the roof without penetrating the waterproof protective layer. Combined with the design of counterweights, support rings and support rods, it ensures the stability of the fixation and the integrity of the waterproof layer.
Effectively fix the ductwork to prevent displacement or shaking, maintain the integrity of the roof waterproofing layer, ensure that the waterproofing performance is not affected, and reduce maintenance costs.
Smart Images

Figure CN224032033U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of duct installation, and more particularly to a duct fixing structure that avoids damage to the roof waterproofing layer. Background Technology
[0002] In the field of building engineering, the installation of roof ducts is a crucial step in the construction of ventilation systems. Traditional duct fixing methods generally employ mechanical means, such as using bolts to directly fix the duct supports to the roof. While this conventional approach achieves the installation and positioning of the ducts, it has serious drawbacks.
[0003] As a crucial barrier preventing rainwater leakage and ensuring the dryness of the building's interior, the roof waterproofing layer is inevitably susceptible to damage when secured with bolts or other mechanical means. Once damaged, rainwater can easily seep through the breach into the roof structure, leading to leaks. This not only corrodes the building's roof structure and shortens its lifespan but can also cause dampness and damage to the interior finishes, affecting indoor comfort and increasing the cost and difficulty of subsequent repairs.
[0004] With the increasing demands for building quality and the growing emphasis on waterproofing performance, it is imperative to develop a new type of duct fixing structure that can effectively secure ducts while avoiding damage to the roof's waterproofing layer. Utility Model Content
[0005] In order to avoid damaging the roof's waterproof layer, this application provides a duct fixing structure that avoids damaging the roof's waterproof protective layer.
[0006] This application provides a duct fixing structure that avoids damaging the roof's waterproof protective layer, employing the following technical solution:
[0007] A duct fixing structure that avoids damaging the roof waterproofing layer includes a crossbeam, a leg, a support, and a sleeve. The crossbeam is used to hold the duct. The crossbeam is connected to one end of the leg. The end of the leg away from the crossbeam is connected to the support. The bottom of the support abuts against the roof. The sleeve is fitted on the outside of the leg and the support. The bottom of the sleeve abuts against the roof. The sleeve is used to hold concrete.
[0008] By adopting the above technical solution, the crossarm, as a component for placing the duct, provides a support platform for the duct, ensuring its stable placement. The outrigger connects the crossarm and the support, transferring the weight of the duct and crossarm to the support, while also serving a positioning function to ensure that the crossarm and duct are in the appropriate installation position. The sleeve is fitted onto the outside of the outrigger and the support. When concrete is poured into the sleeve, the concrete gradually fills and wraps around part of the outrigger and support. As the concrete solidifies and hardens, it forms an integral structure with the outrigger and support. The solidification process of the concrete generates a certain bonding force and mechanical interlocking force, firmly anchoring the outrigger and support to the roof. This ensures that the entire duct fixing structure is firmly connected to the roof, effectively preventing displacement or shaking of the duct during use. The bottom of the support directly abuts against the roof's waterproof protective layer, rather than using a fixing method that penetrates the waterproof protective layer. The bottom of the sleeve also abuts against the roof. The entire fixing process does not damage the waterproof protective layer, maintaining its integrity and ensuring that the roof's waterproof performance is not affected.
[0009] Preferably, the sleeve is provided with a counterweight.
[0010] By adopting the above technical solution, during the process of pouring concrete into the sleeve, the uncured concrete is in a flowing state. At this time, the stability of the entire fixed structure is poor. The counterweight increases the overall weight of the sleeve, making it have stronger adhesion to the roof. By increasing the pressure of the bottom of the sleeve on the roof, friction is used to prevent the sleeve from shifting or shaking during the concrete pouring process, ensuring that the legs and supports can be kept in the initial set position, laying the foundation for the formation of a stable fixed structure after the concrete solidifies.
[0011] Preferably, the counterweight is provided with a slot, which is adapted to the top edge of the sleeve.
[0012] By adopting the above technical solution, the detachable connection design allows the counterweight to be installed or removed according to actual needs. During installation, the slot on the counterweight is aligned with the top edge of the sleeve, and it can be directly inserted to complete the installation. After the concrete dries, the counterweight can be removed and reused, reducing costs.
[0013] Preferably, the sleeve has a support ring on the outer side of its bottom, and the bottom of the support ring abuts against the roof surface.
[0014] By adopting the above technical solution, the support ring provides a more stable support foundation for the sleeve. On the one hand, the presence of the support ring increases the width of the support surface at the bottom of the sleeve, which is like adding a stable "chassis" to the sleeve, reducing the possibility of the sleeve shaking or tipping when subjected to external forces. On the other hand, the support ring can effectively prevent the sleeve from shifting due to uneven pressure during concrete pouring. When pouring concrete, the lateral pressure of the concrete on the sleeve may cause the sleeve to tilt. However, the support ring is in close contact with the ground and can resist this lateral pressure, keeping the sleeve vertical and stable, ensuring uniform filling of concrete, and improving the overall stability of the fixed structure.
[0015] Preferably, the bottom of the support ring is provided with a sealing layer.
[0016] By adopting the above technical solution, when pouring concrete into the sleeve, the sealing layer can prevent concrete from leaking out from the gap between the bottom of the sleeve and the ground. If concrete leakage occurs, it will not only waste materials, but also affect the filling effect of concrete in the sleeve, resulting in insufficient strength of the fixed structure. The sealing layer is tightly attached to the ground and the bottom of the support ring, filling any possible gaps, allowing the concrete to be fully filled in the sleeve, ensuring that the concrete is tightly bonded to the support legs, supports and other components, and improving the stability and load-bearing capacity of the entire fixed structure.
[0017] Preferably, the support includes multiple support rods, which are arranged around the bottom of the support leg and the bottom of the multiple support rods abut against the roof.
[0018] By adopting the above technical solution, multiple support rods are distributed in a ring shape, providing support for the legs from different directions. This layout makes the force on the support more balanced in all directions, better resisting external forces from different directions, preventing the support from tilting or shifting, ensuring that the entire duct fixing structure is stably fixed on the roof, and ensuring the normal operation of the duct.
[0019] Preferably, the end of the support rod away from the support leg abuts against the inner wall of the sleeve.
[0020] By adopting the above technical solution, during the concrete pouring process, especially when vibrating the concrete, the sleeve may be deformed by the lateral pressure of the concrete. The support rod abuts against the inner wall of the sleeve, which can provide additional support force for the sleeve and restrain the deformation of the sleeve. When the sleeve is subjected to lateral pressure, the support rod can share part of the pressure, so that the sleeve maintains a relatively stable shape, ensuring that the concrete can be poured and solidified smoothly in the sleeve with a normal shape, and ensuring the quality of the fixed structure.
[0021] Preferably, the support rod is provided with protruding spikes.
[0022] By adopting the above technical solution, during the concrete pouring process, concrete will fill the area around the protrusion. After the concrete solidifies, the protrusion and the concrete form a mechanically interlocking structure. The protrusion is like a "reinforcing rib" in the concrete, which increases the bonding force and friction between the support rod and the concrete. This tight bond can more effectively transfer stress. When the fixed structure is subjected to external force, the support rod can better transfer the force to the concrete, which then disperses it to the entire roof, improving the load-bearing capacity and stability of the fixed structure.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] The bottom of the support is directly abutted against the waterproof protective layer of the roof and fixed with concrete, rather than by a fixing method that penetrates the waterproof protective layer. The entire fixing process will not damage the waterproof protective layer, thus maintaining the integrity of the roof's waterproof protective layer and ensuring that the roof's waterproof performance is not affected. Attached Figure Description
[0025] Figure 1 This is a first-view overall structural diagram of the fixed structure according to an embodiment of this application;
[0026] Figure 2 This is a cross-sectional view of the overall structure of the fixed structure according to an embodiment of this application;
[0027] Figure 3 This is a second-view overall structural diagram of the fixed structure in an embodiment of this application.
[0028] Figure label:
[0029] 1. Crossbeam; 2. Outrigger; 3. Support; 31. Support rod; 32. Spike; 4. Sleeve; 41. Counterweight; 42. Slot; 43. Support ring; 44. Sealing layer; 5. Roof; 6. Concrete; 7. Air duct. Detailed Implementation
[0030] 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 used to explain this utility model and are not intended to limit this utility model.
[0031] This utility model provides a duct fixing structure that avoids damaging the roof waterproofing layer. Its structure is as follows: Figure 1 - Figure 3As shown, it includes a crossbeam 1, a support leg 2, a support 3, and a sleeve 4. The crossbeam 1 is used to place the air duct. The crossbeam 1 is connected to one end of the support leg 2. The end of the support leg 2 away from the crossbeam 1 is connected to the support 3. The bottom of the support 3 abuts against the roof 5. The sleeve 4 is sleeved on the outside of the support leg 2 and the support 3. The bottom of the sleeve 4 abuts against the roof 5. The sleeve 4 is used to hold concrete 6.
[0032] In use, the crossarm 1 serves as a support platform for the ductwork, ensuring its stable placement. The support leg 2 connects the crossarm 1 and the support 3, transferring the weight of the ductwork and crossarm 1 to the support 3 and also providing positioning to ensure the crossarm 1 and ductwork are in the correct installation position. The sleeve 4 is fitted over the outside of the support leg 2 and the support 3. When concrete 6 is poured into the sleeve 4, it gradually fills and encases a portion of the support leg 2 and the support 3. As the concrete 6 hardens, it forms a unified structure with the support leg 2 and the support 3. The solidification process generates a certain bonding force and mechanical interlocking force, which firmly anchors the support leg 2 and the support 3 to the roof 5, thereby firmly connecting the entire duct fixing structure to the roof 5. This effectively prevents the duct from shifting or shaking during use. The bottom of the support 3 directly abuts against the waterproof protective layer of the roof 5, rather than using a fixing method that penetrates the waterproof protective layer. The bottom of the sleeve 4 also abuts against the roof 5. The entire fixing process will not damage the waterproof protective layer, maintaining the integrity of the waterproof protective layer of the roof 5, thereby ensuring that the waterproof performance of the roof 5 is not affected.
[0033] To increase the weight of sleeve 4, please refer to... Figure 1 In a preferred embodiment, the sleeve 4 is provided with a counterweight 41.
[0034] During use, when pouring concrete 6 into the sleeve 4, the uncured concrete 6 is in a flowing state. At this time, the stability of the entire fixed structure is poor. The counterweight 41 increases the overall weight of the sleeve 4, making it more adhesive to the roof 5. By increasing the pressure of the bottom of the sleeve 4 on the roof 5, friction is used to prevent the sleeve 4 from shifting or shaking during the pouring of concrete 6, ensuring that the support leg 2 and support 3 can remain in the initial set position, laying the foundation for the formation of a stable fixed structure after the concrete 6 has solidified.
[0035] For easy assembly and disassembly of counterweight 41, please refer to... Figure 2 In a preferred embodiment, the counterweight 41 is provided with a slot 42, which is adapted to the top edge of the sleeve 4.
[0036] When in use, the detachable connection design allows the counterweight 41 to be installed or removed according to actual needs. During installation, align the slot 42 on the counterweight 41 with the top edge of the sleeve 4 and insert it directly to complete the installation. After the concrete 6 dries, the counterweight 41 can be removed and reused, reducing costs.
[0037] To increase the contact area between the bottom of sleeve 4 and roof 5, please refer to... Figure 2 In a preferred embodiment, a support ring 43 is provided on the outer side of the bottom of the sleeve 4, and the bottom of the support ring 43 abuts against the roof 5.
[0038] In use, the support ring 43 provides a more stable support base for the sleeve 4. On the one hand, the presence of the support ring 43 increases the width of the support surface at the bottom of the sleeve 4, which is like adding a stable "chassis" to the sleeve 4, reducing the possibility of the sleeve 4 shaking or tipping when subjected to external forces. On the other hand, the support ring 43 can effectively prevent the sleeve 4 from shifting due to uneven pressure during the pouring of concrete 6. When pouring concrete 6, the lateral pressure of concrete 6 on the sleeve 4 may cause the sleeve 4 to tilt. However, the support ring 43 is in close contact with the ground and can resist this lateral pressure, keeping the sleeve 4 vertical and stable, ensuring that the concrete 6 is filled evenly, and improving the overall stability of the fixed structure.
[0039] To improve the sealing performance inside sleeve 4, please refer to... Figure 2 In a preferred embodiment, the bottom of the support ring 43 is provided with a sealing layer 44.
[0040] When concrete 6 is poured into sleeve 4 during use, sealing layer 44 prevents concrete 6 from leaking out from the gap between the bottom of sleeve 4 and the ground. If concrete 6 leaks out, it will not only waste materials, but also affect the filling effect of concrete 6 in sleeve 4, resulting in insufficient strength of the fixed structure. Sealing layer 44 is tightly attached to the ground and the bottom of support ring 43, filling any gaps that may exist, so that concrete 6 can be fully filled in sleeve 4, ensuring that concrete 6 is tightly bonded to components such as support leg 2 and support 3, and improving the stability and load-bearing capacity of the entire fixed structure.
[0041] To improve the stability of support 3, please refer to... Figure 2 In a preferred embodiment, the support 3 includes a plurality of support rods 31, which are arranged around the bottom of the support leg 2 and the bottom of the plurality of support rods 31 abuts against the roof 5.
[0042] In use, multiple support rods 31 are arranged in a ring to provide support for the support leg 2 from different directions. This layout makes the support 3 more evenly stressed in all directions, better resists external forces from different directions, prevents the support 3 from tilting or shifting, and ensures that the entire duct fixing structure is stably fixed on the roof 5, ensuring the normal operation of the duct.
[0043] To ensure that support 3 and sleeve 4 mutually limit each other, please refer to... Figure 2 In a preferred embodiment, the end of the support rod 31 away from the support leg 2 abuts against the inner wall of the sleeve 4.
[0044] During use, during the pouring of concrete 6, especially when vibrating concrete 6, the sleeve 4 may deform due to the lateral pressure of concrete 6. The support rod 31 abuts against the inner wall of the sleeve 4, which can provide additional support for the sleeve 4 and restrain the deformation of the sleeve 4. When the sleeve 4 is subjected to lateral pressure, the support rod 31 can share part of the pressure, so that the sleeve 4 maintains a relatively stable shape, ensuring that the concrete 6 can be poured and solidified smoothly in the sleeve 4 with a normal shape, thus ensuring the quality of the fixed structure.
[0045] To ensure a tighter bond between the support rod 31 and the concrete 6, please refer to... Figure 3 In a preferred embodiment, the support rod 31 is provided with protrusions 32.
[0046] During use, the area around the protruding spikes 32 is filled with concrete 6 during the pouring of concrete 6. After the concrete 6 solidifies, the protruding spikes 32 and concrete 6 form a mechanically interlocking structure. The protruding spikes 32 are like "reinforcing ribs" in concrete 6, increasing the bonding force and friction between the support rod 31 and concrete 6. This tight bond can more effectively transfer stress. When the fixed structure is subjected to external force, the support rod 31 can better transfer the force to concrete 6, which is then distributed to the entire roof 5, improving the load-bearing capacity and stability of the fixed structure.
[0047] The implementation principle of the duct fixing structure that avoids damage to the roof waterproofing protective layer in this application embodiment is as follows: The crossbeam 1 serves as a component for placing the duct, providing a support platform to ensure stable placement. The support leg 2 connects the crossbeam 1 and the support 3, transferring the weight of the duct and crossbeam 1 to the support 3, while also serving a positioning function to ensure the crossbeam 1 and duct are in the appropriate installation position. The sleeve 4 is fitted onto the outside of the support leg 2 and the support 3. When concrete 6 is poured into the sleeve 4, the concrete 6 gradually fills and wraps around a portion of the support leg 2 and the support 3. As the concrete 6 solidifies and hardens, it adheres to the support leg 2 and the support 3. 3. Forming an integral structure, the curing process of concrete 6 generates a certain bonding force and mechanical interlocking force, which tightly anchors the support leg 2 and support 3 to the roof 5, thereby firmly connecting the entire duct fixing structure to the roof 5, effectively preventing the duct from shifting or shaking during use. The bottom of support 3 directly abuts against the waterproof protective layer of the roof 5, instead of using a fixing method that penetrates the waterproof protective layer. The bottom of sleeve 4 also abuts against the roof 5. The entire fixing process will not damage the waterproof protective layer, maintaining the integrity of the waterproof protective layer of the roof 5, thereby ensuring that the waterproof performance of the roof 5 is not affected.
[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A wind pipe fixing structure for avoiding damage to a waterproofing layer of a roof, characterized by: Including cross arm (1), branch leg (2), support (3) and sleeve (4), the cross arm (1) is used to place the air pipe (7), the cross arm (1) is connected to the one end of branch leg (2), the end of branch leg (2) away from cross arm (1) is connected to support (3), the bottom of support (3) is abutted on roof (5), the sleeve (4) is sleeved on the outside of branch leg (2) and support (3), the bottom of sleeve (4) is abutted on roof (5), the sleeve (4) is used to contain concrete (6).
2. The wind pipe fixing structure for avoiding damage to a waterproofing layer of a roof according to claim 1, characterized in that: The sleeve (4) is equipped with counterweight (41).
3. The wind pipe fixing structure for avoiding damage to a waterproofing layer of a roof according to claim 2, characterized in that: The counterweight (41) is equipped with clamping groove (42), and the clamping groove (42) is matched with the top edge of sleeve (4).
4. The wind pipe fixing structure for avoiding damage to a waterproofing layer of a roof according to claim 1, characterized in that: The bottom outside of sleeve (4) is equipped with support ring (43), and the bottom of support ring (43) is abutted on roof (5).
5. The wind pipe fixing structure for avoiding damage to a waterproofing layer of a roof according to claim 4, characterized in that: The bottom of support ring (43) is equipped with sealing layer (44).
6. The wind pipe fixing structure for avoiding damage to a waterproofing layer of a roof according to claim 1, characterized in that: The support (3) includes a plurality of support rods (31), a plurality of support rods (31) are annularly arranged at the bottom of branch leg (2), and the bottoms of the plurality of support rods (31) are abutted on roof (5).
7. A wind pipe fixing structure for avoiding damage to a waterproofing layer of a roof according to claim 6, characterized in that: The end of support rod (31) away from branch leg (2) is abutted on the inner wall of sleeve (4).
8. The wind pipe fixing structure for avoiding damaging a waterproofing layer of a roof according to claim 6, characterized in that: The support rod (31) is equipped with protruding spine (32).