Air pipe based on integrated composite board

By setting V-shaped grooves on both sides of the sound insulation cotton and using U-shaped angle iron reinforcing rods, the problem of insufficient adhesive contact area in traditional air ducts is solved, enhancing the bonding strength and structural stability of the air duct and achieving better sound insulation performance.

CN224135364UActive Publication Date: 2026-04-17ANHUI LVSHENGTONG ENVIRONMENTAL ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI LVSHENGTONG ENVIRONMENTAL ENGINEERING CO LTD
Filing Date
2025-06-11
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In traditional soundproof ducts, the limited contact area between the adhesive and the sound insulation cotton results in low bonding strength, making the duct prone to peeling under mechanical stress or environmental factors, thus affecting the structural stability and sound insulation performance of the duct.

Method used

The system adopts an integrated composite panel structure. V-shaped grooves are set on both sides of the sound insulation cotton to increase the contact area of ​​the adhesive. U-shaped angle irons and reinforcing rods are used to enhance the connection stability. Combined with rivet fixation, a sealed tube body is formed.

Benefits of technology

This improves the bonding strength between the adhesive and the sound insulation cotton, preventing the sound insulation cotton from separating and ensuring the overall structural stability and sound insulation effect of the duct.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an air pipe based on an integrated composite board, which comprises a pipe body and sealing assemblies, the two ends of the pipe body are respectively provided with the sealing assemblies, the pipe body is formed by splicing a first L-shaped plate and a second L-shaped plate, and the two ends of the first L-shaped plate are respectively and fixedly connected with the second L-shaped plate through first rivets; the first L-shaped plate comprises a shell, one side of the shell is fixedly connected with first sound insulation cotton and second sound insulation cotton through glue, one side of the first sound insulation cotton is fixedly connected with a first inner plate, one side of the second sound insulation cotton is fixedly connected with a second inner plate, and one side of the first inner plate is in contact with one side of the second inner plate. According to the utility model, the pipe body, the sealing assembly and the first rivet are matched with one another, so that the air pipe of the integrated composite board can be assembled.
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Description

Technical Field

[0001] This utility model relates to the field of air duct technology, specifically to an air duct based on an integrated composite panel. Background Technology

[0002] In the field of ventilation systems, traditional soundproof ducts are usually made of soundproof cotton and metal sheets (such as iron sheets) bonded together with adhesive. The specific manufacturing process includes: first, applying adhesive evenly to both sides of the soundproof cotton, then attaching the metal sheets to both sides of the soundproof cotton to form duct panels; after the panels have cured, the four panels are fixed and assembled into a duct body using screws or rivets, and finally, angle irons are installed at both ends of the duct body to complete the duct manufacturing.

[0003] However, existing technologies have the following significant drawbacks: Because traditional sound insulation cotton typically has a flat surface, the contact area between the adhesive and the cotton (especially porous materials like sponge) is limited, resulting in low bonding strength. During duct assembly or long-term use, the adhesive layer is prone to peeling off from the sound insulation cotton due to mechanical stress or environmental factors (such as temperature and humidity changes), thus affecting the overall structural stability and sound insulation performance of the duct. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a duct based on an integrated composite panel, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A duct based on an integrated composite panel includes a duct body and a sealing assembly. The sealing assembly is installed at both ends of the duct body. The duct body is spliced ​​from a first L-shaped plate and a second L-shaped plate. The two ends of the first L-shaped plate are fixedly connected to the second L-shaped plate by a first rivet. The first L-shaped plate includes an outer shell. A first sound insulation cotton and a second sound insulation cotton are fixedly connected to one side of the outer shell by adhesive. A first inner plate is fixedly connected to one side of the first sound insulation cotton, and a second inner plate is fixedly connected to one side of the second sound insulation cotton. One side of the first inner plate and one side of the second inner plate are in contact with each other.

[0007] Furthermore, the outer shell includes a first plate, one end of which is fixedly connected to a second plate, and one end of which is fixedly connected to a third plate. The first plate and the second plate are perpendicular to each other, and the second plate and the third plate are perpendicular to each other.

[0008] Furthermore, V-shaped grooves are provided at equal intervals on both sides of the first and second sound insulation cotton.

[0009] Furthermore, the first inner plate includes a long plate, one end of which is fixedly connected to a short plate, the long plate and the short plate being perpendicular to each other, and the second inner plate adopting the same structure as the first inner plate.

[0010] Furthermore, the sealing assembly includes U-shaped angle irons, with U-shaped angle irons installed at both ends of the tube body. A total of four sets of U-shaped angle irons are provided, and one side of each U-shaped angle iron is fixed to the surface of the tube body by a second rivet.

[0011] Furthermore, the sealing assembly also includes reinforcing rods, the two ends of which are fixedly connected to U-shaped angle irons by third rivets, and two sets of reinforcing rods are provided in total.

[0012] This invention provides a duct based on an integrated composite panel. Compared with the prior art, it has the following advantages:

[0013] 1. The V-groove allows the outer shell, the first inner panel, and the second inner panel to be more firmly bonded to the first and second sound insulation cotton using adhesive, thus preventing separation.

[0014] 2. By using 4 sets of U-shaped angle irons, the two ends of the tube can be sealed, avoiding the exposure of the sound insulation cotton.

[0015] 3. The reinforcing rod not only connects the two sets of U-shaped angle irons together, but also increases the overall stability of the tube. Attached Figure Description

[0016] 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.

[0017] Figure 1 A schematic diagram of the overall structure of this utility model is shown;

[0018] Figure 2 A schematic diagram of the sealing assembly of this utility model is shown;

[0019] Figure 3 A schematic diagram of the disassembled sealing assembly of this utility model is shown;

[0020] Figure 4 This illustrates the intended shape of the tube body of this utility model;

[0021] Figure 5 A schematic diagram of the disassembled tube body of this utility model is shown;

[0022] Figure 6 This diagram shows a disassembled schematic of the first L-shaped plate of this utility model;

[0023] As shown in the figure:

[0024] 100. Pipe body;

[0025] 200. Sealing assembly; 201. U-shaped angle iron; 202. Second rivet; 203. Reinforcing rod; 204. Third rivet;

[0026] 300. First L-shaped panel; 301. Outer shell; 3011. First panel; 3012. Second panel; 3013. Third panel; 302. First sound insulation cotton; 303. Second sound insulation cotton; 304. First inner panel; 3041. Long panel; 3042. Short panel; 305. Second inner panel; 306. V-groove;

[0027] 400, Second L-shaped plate;

[0028] 500. First rivet. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, 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.

[0030] Example

[0031] To address the technical problems in the background section, the following duct based on an integrated composite panel is proposed:

[0032] Combination Figures 1-6 As shown, the present invention provides a duct based on an integrated composite panel, including a duct body 100 and a sealing assembly 200. The sealing assembly 200 is installed at both ends of the duct body 100. The duct body 100 is spliced ​​from a first L-shaped plate 300 and a second L-shaped plate 400. The two ends of the first L-shaped plate 300 are fixedly connected to the second L-shaped plate 400 by a first rivet 500. The first L-shaped plate 300 includes a shell 301. A first sound insulation cotton 302 and a second sound insulation cotton 303 are fixedly connected to one side of the shell 301 by adhesive. A first inner plate 304 is fixedly connected to one side of the first sound insulation cotton 302, and a second inner plate 305 is fixedly connected to one side of the second sound insulation cotton 303. One side of the first inner plate 304 and one side of the second inner plate 305 are in contact with each other.

[0033] The air duct can be assembled into an integrated composite panel by the cooperation of the pipe body, sealing components and the first rivet.

[0034] In this embodiment, the outer shell 301 includes a first plate 3011, a second plate 3012 is fixedly connected to one end of the first plate 3011, and a third plate 3013 is fixedly connected to one end of the second plate 3012. The first plate 3011 and the second plate 3012 are perpendicular to each other, and the second plate 3012 and the third plate 3013 are perpendicular to each other.

[0035] The design of the first plate 3011, the second plate 3012, and the third plate 3013 facilitates the later connection of the two sets of L-shaped plates together using the first rivet 500.

[0036] In this embodiment, V-shaped grooves 306 are provided at equal intervals on both sides of the first sound insulation cotton 302 and the second sound insulation cotton 303.

[0037] The V-groove 306 allows the outer shell 301, the first inner panel 304, and the second inner panel 305 to be more firmly bonded to the first sound insulation cotton 302 and the second sound insulation cotton 303 using adhesive, thus preventing separation.

[0038] In this embodiment, the first inner plate 304 includes a long plate 3041, one end of which is fixedly connected to a short plate 3042. The long plate 3041 and the short plate 3042 are perpendicular to each other. The second inner plate 305 adopts the same structure as the first inner plate 304.

[0039] The long plate 3041 and the short plate 3042 work together to form an inner panel, so that when the first inner panel and the second inner panel are combined, they can be fixed together by adhesive and screws.

[0040] In this embodiment, the sealing assembly 200 includes a U-shaped angle iron 201. U-shaped angle irons 201 are respectively installed at both ends of the tube body 100. A total of 4 sets of U-shaped angle irons 201 are provided. One side of the U-shaped angle iron 201 is fixed to the surface of the tube body 100 by a second rivet 202.

[0041] By using four sets of U-shaped angle irons 201, the two ends of the tube body 100 can be sealed, thus preventing the sound insulation cotton from being exposed.

[0042] In this embodiment, the sealing assembly 200 also includes a reinforcing rod 203. The two ends of the reinforcing rod 203 are fixedly connected to the U-shaped angle iron 201 by a third rivet 204. There are two sets of reinforcing rods 203.

[0043] The reinforcing rod 302 not only connects the two sets of U-shaped angle irons 201 together, but also increases the overall stability of the tube body 100.

[0044] Working principle and usage process of this utility model:

[0045] In use:

[0046] During assembly, firstly, adhesive is applied to one side of the first sound insulation cotton 302 and the second sound insulation cotton 303. Since V-grooves are provided on both sides of the first sound insulation cotton 302 and the second sound insulation cotton 303, a certain amount of adhesive can be stored. After the adhesive is applied, the first sound insulation cotton 302 and the second sound insulation cotton 303 are respectively adhered to the outer shell 301, which is in a bent state. After adhesion, adhesive is applied to the other side of the first sound insulation cotton 302 and the second sound insulation cotton 303. Then, the second inner panel 305 and the first inner panel 304 are separated. Do not stick to the first sound insulation cotton 302 and the second sound insulation cotton 303. The first inner panel 304 and the second inner panel 305 are also formed by bending, thus completing the production of the first L-shaped panel 300. After the first L-shaped panel 300 is completed, the second L-shaped panel 400 is produced. After completion, assembly can begin. During assembly, firstly, insert one end of the first panel in the second L-shaped panel 400 into one side of the third panel 3013 in the first L-shaped panel 300. When inserting, it is also necessary to insert one end of the third panel in the second L-shaped panel 400 into the first L-shaped panel 300. After the first plate is inserted, the worker can then use the first rivet 500 to fix the first L-shaped plate 300 and the second L-shaped plate 400 together. The first inner plate 304 and the second inner plate 305, due to their contact and compression, create a relatively sealed interior for the tube body 100. Once the surface of the tube body 100 is fixed using the first rivet 500, the tube body 100 is assembled. Then, adhesive is used to seal the gap between the first inner plate 304 and the second inner plate 305. After sealing, the overall assembly is complete. Assemble the tube body 100. After assembly, install the sealing component 200. Align the opening of the U-shaped angle iron 201 with one end of the tube body 100 and insert the U-shaped angle iron 201. After insertion, use the second rivet 202 to fix the U-shaped angle iron 201 to the surface of the tube body 100. After the four sets of U-shaped angle irons 201 are fixed, install the reinforcing rod 203. Make the two ends of the reinforcing rod 203 contact with the U-shaped angle iron 201 respectively. After contact, use the third rivet 204 to fix the reinforcing rod 203 to the U-shaped angle iron 201, which increases the stability of the tube body 100.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover 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 limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wind pipe based on a one-piece composite panel, characterized by: It includes a pipe body (100) and a sealing assembly (200). The sealing assembly (200) is installed at both ends of the pipe body (100). The pipe body (100) is spliced ​​from a first L-shaped plate (300) and a second L-shaped plate (400). The two ends of the first L-shaped plate (300) are respectively fixedly connected to the second L-shaped plate (400) by a first rivet (500). The first L-shaped plate (300) includes a shell (301). A first sound insulation cotton (302) and a second sound insulation cotton (303) are fixedly connected to one side of the shell (301) by adhesive. A first inner plate (304) is fixedly connected to one side of the first sound insulation cotton (302), and a second inner plate (305) is fixedly connected to one side of the second sound insulation cotton (303). One side of the first inner plate (304) and one side of the second inner plate (305) are in contact with each other.

2. The air duct based on the integrated composite panel according to claim 1, characterized in that: The outer casing (301) includes a first plate (3011), a second plate (3012) is fixedly connected to one end of the first plate (3011), a third plate (3013) is fixedly connected to one end of the second plate (3012), the first plate (3011) and the second plate (3012) are perpendicular to each other, and the second plate (3012) and the third plate (3013) are perpendicular to each other.

3. A wind pipe based on a one-piece composite plate according to claim 2, characterized in that: The first sound insulation cotton (302) and the second sound insulation cotton (303) are provided with V-shaped grooves (306) at equal intervals on both sides.

4. A duct based on a one-piece composite panel according to claim 3, characterized in that: The first inner plate (304) includes a long plate (3041), one end of which is fixedly connected to a short plate (3042). The long plate (3041) and the short plate (3042) are perpendicular to each other. The second inner plate (305) adopts the same structure as the first inner plate (304).

5. A duct based on a one-piece composite panel according to claim 4, characterized in that: The sealing assembly (200) includes U-shaped angle irons (201), and U-shaped angle irons (201) are respectively installed at both ends of the tube body (100). A total of 4 sets of U-shaped angle irons (201) are provided. One side of the U-shaped angle irons (201) is fixed to the surface of the tube body (100) by a second rivet (202).

6. A wind pipe based on a unitary composite panel according to claim 5, characterized in that: The sealing assembly (200) also includes a reinforcing rod (203), the two ends of which are fixedly connected to the U-shaped angle iron (201) by a third rivet (204), and two sets of the reinforcing rod (203) are provided.