Quickly install double-sided color steel plate glass fiber composite air pipe

Abstract

The utility model relates to the technical field of air pipe, disclose a kind of double-face color steel plate glass fibre composite air pipe of quick installation, including composite air pipe whole, the connecting place of composite air pipe whole is fixed with quick connecting mechanism, quick connecting mechanism includes horizontal link and longitudinal link, horizontal link and longitudinal link are each provided with two groups, two groups of horizontal link and two groups of longitudinal link constitute rectangular frame;The inside of the connecting place of horizontal link and longitudinal link is all provided with the hole of penetration, and the both ends of supporting beam are respectively inserted in the hole of penetration corresponding inside.This utility model through the modularization design of quick connecting mechanism, horizontal link, longitudinal link and supporting beam are prefabricated as standard component, only need to insert and splice frame on site, and simple operation of cooperation buckle plate and locking bolt can be completed fixed. Without being like traditional bolt connection and opening a large number of screw holes, reduce installation step, significantly shorten construction period.

Description

Technical Field

[0001] This utility model relates to the field of air ducts, and in particular to a quick-installation double-sided color steel plate fiberglass composite air duct. Background Technology

[0002] Double-sided corrugated steel sheet fiberglass composite ducts are widely used in building ventilation, air conditioning systems, and industrial exhaust systems due to their excellent thermal insulation, sound insulation, and fire resistance. With the increasing demands for construction efficiency and installation reliability in modern building engineering, rapid installation and stable connection of ducts have become a key focus in the industry. Currently, traditional double-sided corrugated steel sheet fiberglass composite ducts typically employ bolt splicing or plug-in sealing methods during installation.

[0003] Among them, bolted connections require a large number of bolt holes to be pre-drilled at the joint of the air duct, and the fixing is achieved by tightening the bolts one by one. The installation steps are cumbersome, time-consuming and labor-intensive. Moreover, the process of drilling bolt holes can easily damage the insulation layer and the surface of the color steel plate of the air duct, affecting the overall sealing and aesthetics.

[0004] While some plug-in structures simplify the installation process, the lack of a reliable locking mechanism makes the connections prone to loosening due to airflow vibrations during long-term use, leading to problems such as air leakage and increased noise, which seriously affects the system's operating efficiency.

[0005] Based on this, we propose a method for quickly installing double-sided color steel plate fiberglass composite air ducts. Utility Model Content

[0006] To address the technical problems associated with traditional bolted and plug-in connections, this utility model provides a quick-installation double-sided color steel plate fiberglass composite air duct.

[0007] This utility model is achieved by the following technical solution: a quick-installation double-sided color steel plate fiberglass composite air duct, including a composite air duct as a whole, a quick-connecting mechanism fixed at the connection of the composite air duct as a whole, the composite air duct as a whole is assembled from multiple air ducts, and a quick-connecting mechanism is installed at the assembly point of the air duct for fixation.

[0008] The quick-connect mechanism includes two sets of transverse and longitudinal links. The two sets of transverse and longitudinal links together form a rectangular frame. Through holes are provided at the connection points of the transverse and longitudinal links. The two ends of the supporting beam are inserted into the corresponding holes to achieve a detachable connection between the transverse and longitudinal links.

[0009] The transverse link and the longitudinal link are perpendicular to each other. A supporting beam is detachably connected at the connection between the transverse link and the longitudinal link. An extension plate extends outward from the transverse link and the longitudinal link. The extension plate is a flat plate structure that extends perpendicularly along the outer edge of the transverse link and the longitudinal link. The surface of the extension plate forms a 90° angle with the extension direction of the transverse link and the longitudinal link.

[0010] The surfaces of the transverse and longitudinal connecting rods are connected by snap-fit ​​plates. A snap-fit ​​head is integrally fixed to the top of each snap-fit ​​plate. The snap-fit ​​head has a hook-shaped cross-section and is integrally formed with the top of the snap-fit ​​plate via an arc-shaped transition structure. Locking bolts are threaded through the sides of the snap-fit ​​plates. The threaded end of the locking bolts passes through the snap-fit ​​plate and abuts against the outer wall of the transverse or longitudinal connecting rod.

[0011] As a further optimization of this utility model, through holes are opened at the connection points of the transverse and longitudinal connecting rods, and the two ends of the supporting beam are inserted into the corresponding holes to form a plug-in detachable structure. This design facilitates rapid on-site frame assembly, and the initial positioning of the frame can be completed without additional tools.

[0012] As a further optimization of this utility model, a rectangular frame is wrapped around the assembly point of the composite air duct. Through the vertical overlap of the horizontal and vertical connecting rods, a ring support is formed at the air duct connection point to ensure the structural rigidity of the splicing part.

[0013] As a further optimization of this utility model, the extension plate is a flat plate. The surface of the extension plate is attached to the outer wall of the duct splice and fixed to the duct surface by bolts or adhesive, forming a connection fulcrum between the frame and the duct, ensuring that the quick-connect mechanism is aligned with the overall position of the composite duct. The extension plate increases the contact area between the frame and the duct, distributing the force of the connection mechanism to the duct surface, avoiding local stress concentration, and at the same time assisting the frame in limiting the displacement of the duct splice, thus improving the overall vibration resistance.

[0014] As a further optimization of this utility model, when the quick-connecting mechanism wraps around the duct splice, the tight fit between the extension plate and the duct surface can be used with sealant to fill the splice gap. The buckle plate covers the connecting rod overlap, reducing airflow leakage points inside the frame. Combined with the tight fit of the barbed structure, the system's sealing performance is further improved.

[0015] As a further optimization of this utility model, a snap-fit ​​plate covers the overlap of the transverse and longitudinal connecting rods, and the snap-fit ​​head at its top is in the shape of a barb, which is integrally formed with the snap-fit ​​plate through an arc-shaped transition structure. During installation, the barb-shaped snap-fit ​​head hooks onto the edges of the transverse and longitudinal connecting rods, and the initial snap-fit ​​is achieved by utilizing the elastic deformation of the arc-shaped structure.

[0016] As a further optimization of this utility model, a locking bolt passes through the side of the buckle plate, and the threaded end of the bolt passes through the buckle plate and abuts against the outer wall of the transverse or longitudinal connecting rod. When the locking bolt is tightened, the bolt thrust makes the buckle plate fit tightly against the surface of the connecting rod, and at the same time, the barbed buckle head forms a mechanical lock with the transverse and longitudinal connecting rods to prevent the buckle plate from falling off.

[0017] As a further optimization of this utility model, two sets of transverse connecting rods and two sets of longitudinal connecting rods overlap to form a rectangular frame structure. The buckle plate covers the overlap of the transverse connecting rods and the longitudinal connecting rods, and the buckle plate fixes the overlapping transverse connecting rods and longitudinal connecting rods through the buckle head at the top and the locking bolts on the side.

[0018] As a further optimization of this utility model, the barbed structure of the buckle head provides initial friction to prevent the buckle plate from shifting during installation; the locking bolt achieves rigid fixation through mechanical tightening, ensuring the stability of the connection mechanism during long-term use and solving the problem of easy loosening of traditional plug-in structures.

[0019] As a further optimization of this utility model, the rectangular frame, through the insertion structure of the supporting beam and the double locking of the buckle plate, forms a composite fixing system of "rigid frame + elastic buckle + bolt tightening", which effectively resists loosening of the connection caused by airflow vibration. When the locking bolt abuts against the outer wall of the connecting rod, the buckle plate is further locked by the thread friction to prevent it from rotating or displacing during long-term vibration.

[0020] As a further optimization of this utility model, the components of the quick-connect mechanism, such as the transverse connecting rod, the longitudinal connecting rod, and the supporting beam, can be prefabricated as standard modules. On-site assembly can be completed through simple operations such as plugging, snapping, and bolt tightening, without the need to drill a large number of screw holes or use complex tools, thus reducing the installation steps compared to traditional bolt connections.

[0021] As a further optimization of this utility model, during installation, the frame is first spliced ​​by the supporting beam, and then the buckle head of the buckle plate and the locking bolt are used to achieve positioning and fixing simultaneously, avoiding the cumbersome process of "positioning-drilling-bolt fixing" in the traditional method, and significantly improving construction efficiency.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. This utility model utilizes a modular design for a quick-connect mechanism, prefabricating the transverse connecting rods, longitudinal connecting rods, and supporting beams as standard components. On-site installation only requires plugging and assembling the frame, and the simple operation of using snap-fit ​​plates and locking bolts completes the fixing process. Unlike traditional bolted connections, it eliminates the need for numerous bolt holes, reducing installation steps and avoiding the cumbersome "positioning-drilling-bolt fixing" process, significantly shortening the construction cycle and meeting the demands of modern engineering for efficient construction.

[0024] 2. This utility model uses a quick-connect mechanism with a double locking system of a plug-in frame of the supporting beam, a buckle head, and a locking bolt. The hook-shaped buckle head hooks onto the edge of the connecting rod to provide initial friction, and the locking bolt tightens to achieve rigid fixation, effectively resisting loosening caused by airflow vibration. This solves the problem of easy displacement in traditional plug-in structures and ensures the stability of the connection parts during long-term operation of the duct.

[0025] 3. This utility model eliminates the need for screw holes on the duct surface, avoiding damage to the double-sided color steel plate and the internal fiberglass insulation layer, thus maintaining the overall structural integrity and insulation performance of the duct. The extension plate distributes the stress on the connection mechanism, preventing localized stress concentration; it also ensures a smooth duct surface, improving the aesthetics after installation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This utility model Figure 1 Schematic diagram of the middle section of the structure;

[0028] Figure 3 This is a schematic diagram of the connection structure of the quick-connect mechanism of this utility model;

[0029] Figure 4 This utility model Figure 3 Schematic diagram of the disassembled structure of the fast connection mechanism;

[0030] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure of region A in the middle;

[0031] Figure 6 This is a schematic diagram of the disassembly and assembly structure of the receiving beam of this utility model;

[0032] Figure 7 This utility model Figure 6 Schematic diagram of the cross-section of the middle section.

[0033] Explanation of key symbols:

[0034] 1. Composite duct assembly; 2. Quick connection mechanism; 21. Horizontal connecting rod; 22. Longitudinal connecting rod; 23. Supporting beam; 24. Extension plate; 25. Clip plate; 26. Clip head; 27. Locking bolt. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0036] Example 1:

[0037] Please combine Figures 1-7 This embodiment proposes a quick-installation double-sided color steel plate fiberglass composite air duct, including a composite air duct whole 1, a quick-connect mechanism 2 fixed at the connection of the composite air duct whole 1, the composite air duct whole 1 is assembled from multiple air ducts, and the quick-connect mechanism 2 is installed at the assembly point of the air duct for fixation.

[0038] The quick-connection mechanism 2 includes a transverse link 21 and a longitudinal link 22. There are two sets of each transverse link 21 and longitudinal link 22. The two sets of transverse links 21 and the two sets of longitudinal links 22 form a rectangular frame. Through holes are opened inside the connection between the transverse link 21 and the longitudinal link 22. The two ends of the supporting beam 23 are respectively inserted into the corresponding holes to realize the detachable connection between the transverse link 21 and the longitudinal link 22.

[0039] In the specific technical solution, through holes are opened at the connection points of the transverse connecting rod 21 and the longitudinal connecting rod 22. The two ends of the supporting beam 23 are inserted into the corresponding holes, forming a plug-in detachable structure. This design facilitates rapid on-site frame assembly, allowing for initial frame positioning without additional tools. The rectangular frame wraps around the assembly point of the composite duct 1. The vertical overlap of the transverse connecting rod 21 and the longitudinal connecting rod 22 forms a ring-shaped support at the duct connection point, ensuring the structural rigidity of the splicing area.

[0040] The transverse link 21 and the longitudinal link 22 are perpendicular to each other. A supporting beam 23 is detachably connected at the connection between the transverse link 21 and the longitudinal link 22. An extension plate 24 extends outward from the transverse link 21 and the longitudinal link 22. The extension plate 24 is a flat plate structure that extends perpendicularly along the outer edge of the transverse link 21 and the longitudinal link 22. The plate surface of the extension plate 24 forms a 90° angle with the extension direction of the transverse link 21 and the longitudinal link 22.

[0041] Furthermore, the extension plate 24 is a flat plate. Its surface is attached to the outer wall of the duct splice and fixed to the duct surface with bolts or adhesive, forming a connection point between the frame and the duct, ensuring the quick-connect mechanism 2 is aligned with the overall composite duct 1. The extension plate 24 increases the contact area between the frame and the duct, distributing the force of the connection mechanism to the duct surface, avoiding localized stress concentration, and simultaneously assisting the frame in limiting displacement at the duct splice, thus improving overall vibration resistance.

[0042] Furthermore, when the quick-connect mechanism 2 wraps around the duct splice, the tight fit between the extension plate 24 and the duct surface can be used with sealant to fill the splice gaps. The buckle plate 25 covers the connecting rod overlap, reducing airflow leakage points inside the frame. Combined with the tight fit of the barbed structure, the system's sealing performance is further improved.

[0043] A snap-fit ​​plate 25 is connected to the surface of the transverse connecting rod 21 and the longitudinal connecting rod 22. A snap-fit ​​head 26 is integrally fixed to the top of the snap-fit ​​plate 25. The snap-fit ​​head 26 has a hook-shaped cross-section and is integrally formed with the top of the snap-fit ​​plate 25 through an arc-shaped transition structure. The snap-fit ​​plate 25 covers the overlap of the transverse connecting rod 21 and the longitudinal connecting rod 22. The snap-fit ​​head 26 at its top is hook-shaped and integrally formed with the snap-fit ​​plate 25 through an arc-shaped transition structure. During installation, the hook-shaped snap-fit ​​head 26 hooks onto the edges of the transverse connecting rod 21 and the longitudinal connecting rod 22, and the initial engagement is achieved by utilizing the elastic deformation of the arc-shaped structure.

[0044] A locking bolt 27 is threaded through the side of the snap-fit ​​plate 25. The threaded end of the locking bolt 27 passes through the snap-fit ​​plate 25 and abuts against the outer wall of the transverse connecting rod 21 or the longitudinal connecting rod 22. When the locking bolt 27 is tightened, the bolt's thrust causes the snap-fit ​​plate 25 to press tightly against the connecting rod surface. Simultaneously, the barbed snap-fit ​​head 26 forms a mechanical lock with the transverse connecting rod 21 and the longitudinal connecting rod 22, preventing the snap-fit ​​plate 25 from falling off.

[0045] Furthermore, the two sets of transverse connecting rods 21 and the two sets of longitudinal connecting rods 22 overlap to form a rectangular frame structure. The buckle plate 25 covers the overlap of the transverse connecting rods 21 and the longitudinal connecting rods 22, and the buckle plate 25 fixes the overlapping transverse connecting rods 21 and longitudinal connecting rods 22 by the buckle head 26 at the top and the locking bolts 27 on the side.

[0046] Specifically, the barbed structure of the buckle head 26 provides initial friction to prevent the buckle plate 25 from shifting during installation; the locking bolt 27 achieves rigid fixation through mechanical tightening, ensuring the stability of the connection mechanism during long-term use and solving the problem of easy loosening in traditional plug-in structures.

[0047] It should be noted that the rectangular frame, through the plug-in structure of the supporting beam 23 and the double locking of the buckle plate 25, forms a composite fixing system of "rigid frame + elastic buckle + bolt tightening", which effectively resists loosening of the connection caused by airflow vibration. When the locking bolt 27 abuts against the outer wall of the connecting rod, the buckle plate 25 is further locked by the thread friction to prevent it from rotating or displacing during long-term vibration.

[0048] In summary, the components of the quick-connect mechanism 2, such as the transverse connecting rod 21, the longitudinal connecting rod 22, and the supporting beam 23, can be prefabricated as standard modules. On-site assembly is completed through simple operations of plugging, snapping, and bolt tightening, eliminating the need for numerous screw holes or complex tools, thus reducing installation steps compared to traditional bolted connections. During installation, the frame is first assembled using the supporting beam 23, and then the snap-fit ​​heads 26 of the snap-fit ​​plate 25 and the locking bolts 27 are used to simultaneously achieve positioning and fixation, avoiding the cumbersome process of "positioning-drilling-bolt fixing" in traditional methods and significantly improving construction efficiency.

[0049] Working principle of quick installation of double-sided color steel plate fiberglass composite air duct

[0050] I. Frame Assembly Principle of Quick-Connect Mechanism

[0051] The quick-connect mechanism 2 consists of a rectangular frame formed by two sets of transverse connecting rods 21 and two sets of longitudinal connecting rods 22, and is detachably connected via a supporting beam 23. Specifically:

[0052] Through holes are made at the connection points of the transverse connecting rod 21 and the longitudinal connecting rod 22. The two ends of the supporting beam 23 are inserted into the corresponding holes, forming a plug-in detachable structure. This design facilitates rapid on-site frame assembly, allowing for initial frame positioning without additional tools. The rectangular frame wraps around the assembly point of the composite duct 1. The vertical overlap of the transverse connecting rod 21 and the longitudinal connecting rod 22 forms a ring-shaped support at the duct connection point, ensuring the structural rigidity of the joint.

[0053] II. Fixing Principle of Buckle Plate and Locking Structure

[0054] The snap plate 25 covers the overlap between the transverse connecting rod 21 and the longitudinal connecting rod 22. The snap head 26 at its top is in the shape of a barb and is integrally formed with the snap plate 25 through an arc transition structure. During installation, the barb-shaped snap head 26 hooks onto the edges of the transverse connecting rod 21 and the longitudinal connecting rod 22, and the initial snap-fit ​​is achieved by utilizing the elastic deformation of the arc structure.

[0055] A locking bolt 27 passes through the side of the snap-fit ​​plate 25. The threaded end of the bolt passes through the snap-fit ​​plate 25 and abuts against the outer wall of the transverse connecting rod 21 or the longitudinal connecting rod 22. When the locking bolt 27 is tightened, the bolt thrust makes the snap-fit ​​plate 25 fit tightly against the surface of the connecting rod. At the same time, the barbed snap-fit ​​head 26 forms a mechanical lock with the transverse connecting rod 21 and the longitudinal connecting rod 22 to prevent the snap-fit ​​plate 25 from falling off.

[0056] The function of the dual fixation mechanism:

[0057] The barbed structure of the snap-fit ​​head 26 provides initial friction to prevent the snap-fit ​​plate 25 from shifting during installation; the locking bolt 27 achieves rigid fixation through mechanical tightening, ensuring the stability of the connection mechanism during long-term use and solving the problem of easy loosening in traditional plug-in structures.

[0058] The extension plate 24 is a flat plate. Its surface is attached to the outer wall of the duct splice and fixed to the duct surface with bolts or adhesive, forming a connection point between the frame and the duct, ensuring the quick-connect mechanism 2 is aligned with the overall composite duct 1. The extension plate 24 increases the contact area between the frame and the duct, distributing the force of the connection mechanism to the duct surface, avoiding localized stress concentration. It also assists the frame in limiting displacement at the duct splice, improving overall vibration resistance.

[0059] IV. Anti-loosening and sealing principle of the integral connection mechanism

[0060] The rectangular frame, through the plug-in structure of the supporting beam 23 and the double locking of the buckle plate 25, forms a composite fixing system of "rigid frame + elastic buckle + bolt tightening", which effectively resists loosening of the connection caused by airflow vibration. When the locking bolt 27 abuts against the outer wall of the connecting rod, the buckle plate 25 is further locked by the thread friction to prevent it from rotating or displacing during long-term vibration.

[0061] Sealing guarantee:

[0062] When the quick-connecting mechanism 2 wraps around the duct splice, the tight fit between the extension plate 24 and the duct surface can be used with sealant to fill the splice gap. The buckle plate 25 covers the connecting rod overlap, reducing airflow leakage points inside the frame. Combined with the tight fit of the barbed structure, it further improves the system's sealing performance.

[0063] The components of the quick-connect mechanism 2, such as the transverse connecting rod 21, the longitudinal connecting rod 22, and the supporting beam 23, can be prefabricated as standard modules. On-site assembly can be completed through simple operations such as plugging, snapping, and bolt tightening, without the need to drill a large number of screw holes or use complex tools, thus reducing the installation steps compared to traditional bolt connections.

[0064] Positioning and locking are completed simultaneously: During installation, the frame is first spliced ​​by the supporting beam 23, and then the buckle head 26 of the buckle plate 25 and the locking bolt 27 are used to achieve positioning and fixing simultaneously, avoiding the cumbersome process of "positioning-drilling-bolt fixing" in the traditional method, and significantly improving construction efficiency.

[0065] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A quick-installation double-sided color steel plate fiberglass composite air duct, comprising an integral composite air duct (1), characterized in that, The composite duct assembly (1) is fixed with a quick connection mechanism (2). The quick connection mechanism (2) includes a horizontal connecting rod (21) and a vertical connecting rod (22). Each of the horizontal connecting rod (21) and the vertical connecting rod (22) is provided with two sets. The two sets of horizontal connecting rods (21) and the two sets of vertical connecting rods (22) form a rectangular frame. The transverse link (21) is perpendicular to the longitudinal link (22). A supporting beam (23) is detachably connected at the connection between the transverse link (21) and the longitudinal link (22). An extension plate (24) extends outward from the transverse link (21) and the longitudinal link (22). A buckle plate (25) is connected to the surface of the transverse link (21) and the longitudinal link (22). A buckle head (26) is integrally fixedly connected to the top of the buckle plate (25). A locking bolt (27) is threaded through the side of the buckle plate (25).

2. The quick-installation double-sided color steel plate fiberglass composite air duct as described in claim 1, characterized in that, The composite duct as a whole (1) is assembled from multiple ducts, and a quick connection mechanism (2) is installed at the assembly point of the ducts for fixation.

3. The quick-installation double-sided color steel plate fiberglass composite air duct as described in claim 1, characterized in that, The buckle head (26) has a hook-shaped cross section, and the buckle head (26) and the top of the buckle plate (25) are integrally formed through an arc transition structure.

4. The quick-installation double-sided color steel plate fiberglass composite air duct as described in claim 1, characterized in that, The end thread of the locking bolt (27) passes through the buckle plate (25) and abuts against the outer wall of the transverse connecting rod (21) or the longitudinal connecting rod (22).

5. The quick-installation double-sided color steel plate fiberglass composite air duct as described in claim 1, characterized in that, The transverse connecting rod (21) and the longitudinal connecting rod (22) are both provided with through holes. The two ends of the supporting beam (23) are respectively inserted into the corresponding holes to realize the detachable connection between the transverse connecting rod (21) and the longitudinal connecting rod (22).

6. The quick-installation double-sided color steel plate fiberglass composite air duct as described in claim 1, characterized in that, The two sets of transverse connecting rods (21) and the two sets of longitudinal connecting rods (22) overlap to form a rectangular frame structure. The buckle plate (25) covers the overlap of the transverse connecting rods (21) and the longitudinal connecting rods (22). The buckle plate (25) fixes the overlapping transverse connecting rods (21) and longitudinal connecting rods (22) by the buckle head (26) at the top and the locking bolts (27) on the side.

7. The quick-installation double-sided color steel plate fiberglass composite air duct as described in claim 1, characterized in that, The extension plate (24) is a flat plate structure that extends perpendicularly along the outer edges of the transverse connecting rod (21) and the longitudinal connecting rod (22), and the plate surface of the extension plate (24) forms a 90° angle with the extension direction of the transverse connecting rod (21) and the longitudinal connecting rod (22).

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