Quick-insertion butt joint type air pipe

Abstract

The utility model discloses a quick-plug butt joint type air pipe which comprises air pipe bodies and pipe joint assemblies fixed to the bottom faces of the air pipe bodies, each pipe joint assembly is of a frame structure, two sets of pipe joint assemblies are arranged in a mirror image mode relative to the horizontal center line of the air pipe bodies, and a first clamping plate and a second clamping plate are used for being in butt joint with the adjacent pipe joint assemblies of the two air pipe bodies. The first clamping plate and the second clamping plate are clamped between the two pipe connecting assemblies in a sliding mode and connected to the multiple internal fixing assemblies in the air pipe body in a penetrating mode. The pipe connecting assemblies are fixed to the air pipe body, the structural strength and the assembling stability of the interior of the air pipe body are improved, when two identical air pipes are connected, the adjacent pipe connecting assemblies are connected in an attached mode, the first clamping plate and the second clamping plate are clamped between the two joint assemblies in a sliding mode, and therefore the air pipes can be connected conveniently. Butt joint operation is easy and convenient, and the strength and precision of the connecting structure between the two air pipes are further improved.

Description

Technical Field

[0001] This utility model relates to the field of duct technology, specifically a quick-connect duct. Background Technology

[0002] Ductwork is a core component of building ventilation and air conditioning (HVAC) systems, much like the human respiratory system. It is responsible for the directional and efficient delivery and distribution of treated air (cool air, hot air, or fresh air) or the exhaust of stale air within a building. Ductwork systems are made from various materials (such as galvanized steel, stainless steel, composite materials, and flexible hoses) and are primarily circular or rectangular in shape. The performance of a ductwork system directly determines indoor air quality, the uniformity of temperature and humidity control, system operating efficiency, and noise levels.

[0003] In existing technologies, duct connections are typically cumbersome, relying on bolted flanges or complex assembly processes, which are time-consuming, labor-intensive, and require highly skilled installers. Furthermore, the ductwork itself (especially large-diameter sections) lacks effective internal support, making it prone to cross-sectional out-of-roundness or overall deformation, further weakening the rigidity and precision of the connection points and reducing the stability of the ductwork in use. Utility Model Content

[0004] The purpose of this invention is to provide a quick-connect duct to solve the problems mentioned in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect duct, including a duct body, a pipe connection assembly fixed to the bottom surface of the duct body, the pipe connection assembly having a frame structure, the pipe connection assembly having two sets of mirror images of the horizontal centerline of the duct body, a first snap-fit ​​plate and a second snap-fit ​​plate for connecting two adjacent pipe connection assemblies of the duct body, the first snap-fit ​​plate and the second snap-fit ​​plate being slidably snapped between the two sets of pipe connection assemblies, and multiple sets of internal fastening components penetrating and connecting inside the duct body;

[0006] The duct body includes an outer duct body, an inner duct body spaced apart inside the outer duct body, an inner partition plate inserted between the inner wall of the outer duct body and the outer wall of the inner duct body, and a pipe fitting assembly fitted between the outer duct body and the inner duct body.

[0007] As a preferred embodiment, the pipe connection assembly includes a first docking component and a second docking component. Both the first and second docking components are fitted between the outer and inner pipe bodies. Two sets of the first and second docking components are mirror images of each other. The two sets of first docking components and the two sets of second docking components are spliced ​​together to form a frame structure. Reinforcing components are fixed between the inner walls of adjacent first and second docking components. The first and second docking components have the same structure. A first snap-fit ​​plate is slidably snapped into the inside of the two sets of first docking components, and a second snap-fit ​​plate is slidably snapped into the inside of the two sets of second docking components.

[0008] As a preferred embodiment, the first docking component includes a top plate that fits against the top surface of the outer tube and the top surface of the inner tube, a first clamping plate connected to one side of the top plate, a second clamping plate connected to the other side of the top plate, a third clamping plate connected to the inner wall of the second clamping plate, a first fixing bolt that penetrates and connects inside the first and second clamping plates, the first clamping plate fitting against the inner wall of the inner tube, the third clamping plate fitting against the outer wall of the outer tube, the first fixing bolt penetrating and connecting inside the outer tube, the inner tube, and the inner partition, the third clamping plate having an inverted J-shaped structure, and one side of the first snap-fit ​​plate slidingly snapping into the inverted J-shaped structure of the third clamping plate.

[0009] Preferredly, the first clamping plate, the top plate, the second clamping plate, and the third clamping plate are an integral bent structure.

[0010] As a preferred embodiment, the reinforcing component includes a fixing plate that fits against the inner wall of the first clamping plate, an inclined bracing plate that is inclinedly connected to the side wall of the fixing plate, and a second fixing bolt that penetrates and connects to the inside of the fixing plate. One end of the second fixing bolt penetrates and connects to the inside of the first clamping plate and the inner tube body. There are two fixing plates mirrored about the vertical centerline of the inclined bracing plate.

[0011] As a preferred option, the reinforcing component also includes a rib groove inside the bracing plate, wherein the side of the rib groove near the inner wall of the bracing plate is concave and the side of the rib groove near the outer wall of the bracing plate is convex.

[0012] As a preferred embodiment, the inner solid assembly includes a connecting rod that extends through the interior of the outer tube, with both ends of the connecting rod extending through the outer wall of the outer tube. Two clamping discs are sleeved on the outer wall of the connecting rod, and the clamping discs are fitted against the outer wall of the outer tube. Limiting rings are sleeved and fixed on the outer walls of both ends of the connecting rod, and the limiting rings are inserted into the clamping discs.

[0013] As a priority, the top and bottom surfaces of the first card plate are provided with flat push grooves, which are inverted trapezoidal structures.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model not only improves the structural strength and assembly stability of the duct body by fixing the pipe connection assembly to the duct body, but also makes it easy to connect two identical ducts by using adjacent pipe connection assemblies to fit together, and allows the first and second snap-fit ​​plates to slide and snap between the two sets of joint assemblies. This further improves the structural strength and accuracy of the connection between the two ducts.

[0016] Multiple sets of internal reinforcement components are connected throughout the duct body to provide internal support and ensure the stability of the internal connections, thereby improving the overall structural strength of the duct. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the quick-connect duct connection structure according to the present invention;

[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the pipe connection assembly structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the pipe fitting assembly and the duct body of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the first docking component of this utility model;

[0022] Figure 6 This is a schematic diagram of the reinforcing component structure of this utility model;

[0023] Figure 7 This is a schematic diagram of the internal solid component structure of this utility model;

[0024] Figure 8 This is a schematic diagram of the first snap-fit ​​plate structure of this utility model;

[0025] Figure label:

[0026] 1. Outer tube body; 2. Inner tube body; 300. Inner partition plate; 400. Pipe connection assembly; 410. First docking component; 411. First clamping plate; 412. Top plate; 413. Second clamping plate; 414. Third clamping plate; 415. First fixing bolt; 420. Second docking component; 430. Reinforcing component; 431. Diagonal brace plate; 432. Fixing plate; 433. Second fixing bolt; 434. Rib protrusion; 500. First snap-fit ​​plate; 510. Flat push groove; 600. Second snap-fit ​​plate; 700. Inner fixing assembly; 710. Connecting rod; 720. Clamping disc; 730. Limiting ring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example: This utility model provides a technical solution for a quick-connect duct, such as... Figures 1-8As shown, the device includes a duct body, a pipe connection assembly 400 fixed to the bottom surface of the duct body, and a frame structure. The pipe connection assembly 400 has two sets of first snap-fit ​​plates 500 and second snap-fit ​​plates 600 mirrored about the horizontal centerline of the duct body for connecting two adjacent pipe connection assemblies 400 of the duct body. The first snap-fit ​​plates 500 and second snap-fit ​​plates 600 are slidably snapped between the two sets of pipe connection assemblies 400, and multiple sets of internal fastening components 700 are connected through the inside of the duct body.

[0029] The duct body includes an outer duct body 1, an inner duct body 2 spaced apart inside the outer duct body 1, an inner partition 300 inserted between the inner wall of the outer duct body 1 and the outer wall of the inner duct body 2, and a pipe connection assembly 400 fitted between the outer duct body 1 and the inner duct body 2.

[0030] By fixing the pipe connection assembly 400 to the duct body, not only is the internal structural strength and assembly stability of the duct body improved, but also when two identical ducts are connected, the adjacent pipe connection assemblies 400 are used to fit together, and the first snap-fit ​​plate 500 and the second snap-fit ​​plate 600 are slidably snapped between the two sets of joint assemblies, making the docking operation simple and further improving the structural strength and accuracy of the connection between the two ducts.

[0031] Multiple sets of internal reinforcement components 700 are connected through the inside of the duct body to provide internal support for the duct body and ensure the stability of the internal connections, thereby improving the overall structural strength of the duct.

[0032] Furthermore, the pipe connection assembly 400 includes a first docking component 410 and a second docking component 420. Both the first docking component 410 and the second docking component 420 are fitted between the outer pipe body 1 and the inner pipe body 2. Two sets of the first docking component 410 and the second docking component 420 are mirror images of each other. The two sets of first docking components 410 and the two sets of second docking components 420 are spliced ​​together to form a frame structure. A reinforcing component 430 is fixed between the inner walls of adjacent first docking components 410 and the inner walls of second docking components 420. The first docking components 410 and the second docking components 420 have the same structure. A first snap-fit ​​plate 500 is slidably snapped into the inside of the two sets of first docking components 410, and a second snap-fit ​​plate 600 is slidably snapped into the inside of the two sets of second docking components 420.

[0033] The first docking component 410 and the second docking component 420 are respectively fitted onto the outer pipe body 1 and the inner pipe body 2 to ensure the fixing strength inside the duct body. After the first docking component 410 and the second docking component 420 are spliced ​​into a frame structure, the reinforcing component 430 is used to connect between the first docking component 410 and the second docking component 420, which improves the structural strength of the connection between the pipe connection assembly 400 and the duct body and improves the overall integrity of the duct.

[0034] By sliding the first snap-fit ​​plate 500 and the second snap-fit ​​plate 600 onto the first docking component 410 and the second docking component 420 respectively, the convenience of docking and disassembly operations is improved.

[0035] Furthermore, the first docking component 410 includes a top plate 412 that fits against the top surface of the outer tube 1 and the top surface of the inner tube 2, a first clamping plate 411 connected to one side of the top plate 412, a second clamping plate 413 connected to the other side of the top plate 412, a third clamping plate 414 connected to the inner wall of the second clamping plate 413, and a first fixing bolt 415 that penetrates and connects inside the first clamping plate 411 and the second clamping plate 413. The first clamping plate 411 fits against the inner wall of the inner tube 2, the third clamping plate 414 fits against the outer wall of the outer tube 1, and the first fixing bolt 415 penetrates and connects inside the outer tube 1, the inner tube 2 and the inner partition 300. The third clamping plate 414 has an inverted J-shaped structure, and one side of the first snap-fit ​​plate 500 is slidably snapped into the inverted J-shaped structure of the third clamping plate 414.

[0036] By attaching the first clamping plate 411 to the inner wall of the inner tube body 2, attaching and positioning the top plate 412 to the top surface of the duct body, and attaching the third clamping plate 414 to the outer wall of the outer tube body 1, the first docking component 410 is positioned and secured on the duct body, ensuring assembly accuracy and improving the stability of installation and fixation.

[0037] Furthermore, the first clamping plate 411, the top plate 412, the second clamping plate 413, and the third clamping plate 414 are an integral bending structure.

[0038] Furthermore, the reinforcing component 430 includes a fixing plate 432 that fits against the inner wall of the first clamping plate 411, a diagonal bracing plate 431 that is inclinedly connected to the side wall of the fixing plate 432, and a second fixing bolt 433 that penetrates and connects to the inside of the fixing plate 432. One end of the second fixing bolt 433 penetrates and connects to the inside of the first clamping plate 411 and the inner tube 2. There are two fixing plates 432 that are mirror images of the vertical center line of the diagonal bracing plate 431.

[0039] The fixing plate 432 is connected to the first clamping plate 411 by the second fixing bolt 433, and the diagonal brace 431 is used to support and fix it between the first docking part 410 and the second docking part 420, thereby improving the structural strength.

[0040] Furthermore, the reinforcing component 430 also includes a rib groove 434 inside the bracing plate 431. The side of the rib groove 434 near the inner wall of the bracing plate 431 has a concave structure, and the side of the rib groove 434 near the outer wall of the bracing plate 431 has a convex structure. By providing the rib groove 434 on the bracing plate 431, the bending resistance of the bracing plate 431 is improved.

[0041] Furthermore, the inner solid component 700 includes a connecting rod 710 that penetrates and connects to the inside of the outer tube 1. Both ends of the connecting rod 710 are respectively disposed through the outer wall of the outer tube 1. Two clamping discs 720 are sleeved on the outer wall of the connecting rod 710. The clamping discs 720 are attached to the outer wall of the outer tube 1. Limiting rings 730 are sleeved and fixed on the outer walls of both ends of the connecting rod 710. The limiting rings 730 are inserted into the inside of the clamping discs 720.

[0042] Furthermore, the first card plate 500 has a push groove 510 on both its top and bottom surfaces, and the push groove 510 has an inverted trapezoidal structure.

[0043] By opening a push groove 510 on the first snap-fit ​​plate 500, the frictional resistance of pushing the first snap-fit ​​plate 500 can be increased during sliding snap-fit, thereby improving the convenience of sliding snap-fit ​​of the first snap-fit ​​plate 500.

[0044] Specifically, the pipe fitting assembly 400 is installed onto the duct body, the first docking component 410 and the second docking component 420 are assembled and fixed respectively, the first clamping plate 411 is attached to the inner wall of the inner duct body 2, the third clamping plate 414 is attached to the outer wall of the outer duct body 1, the top plate 412 is attached between the top surfaces of the outer duct body 1 and the inner duct body 2, the inner partition plate 300 is sealed between the inner duct body 2 and the outer duct body 1, and the first fixing bolt 415 is connected through the first clamping plate 411 and the third clamping plate 414, and also passes through the inner duct body 2, the inner partition plate 300 and the outer duct body 1. The fixing plate 432 is fixed to the first clamping plate 411 and the inner duct body 2 with the second fixing bolt 433, and the diagonal brace plate 431 is supported between the first docking component 410 and the second docking component 420.

[0045] Next, the connecting rod 710 is passed through the inside of the duct body, the clamp 720 is installed on the connecting rod 710, the limiting ring 730 is inserted into the inside of the clamp 720 so that the clamp 720 fits against the outer wall of the outer duct body 1, and the limiting ring 730 is welded and fixed to the connecting rod 710.

[0046] Finally, connect the two ducts so that the pipe fitting components 400 on the two ducts are mirror-fitted, and hold the first snap-fit ​​plate 500 and the second snap-fit ​​plate 600 and slide them into the J-shaped structure of the two third clamping plates 414 on the same side.

[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A quick-plug mating air duct, characterized by, Includes a duct body, a pipe connection assembly (400) fixed to the bottom surface of the duct body, the pipe connection assembly (400) is a frame structure, the pipe connection assembly (400) is mirrored about the horizontal centerline of the duct body with two sets of first snap-fit ​​plates (500) and second snap-fit ​​plates (600) for connecting two adjacent pipe connection assemblies (400) of the duct body, the first snap-fit ​​plate (500) and the second snap-fit ​​plate (600) are slidably snapped between the two sets of pipe connection assemblies (400), and multiple sets of internal fastening components (700) are connected through the inside of the duct body; The duct body includes an outer duct body (1), an inner duct body (2) spaced inside the outer duct body (1), an inner partition plate (300) inserted between the inner wall of the outer duct body (1) and the outer wall of the inner duct body (2), and a pipe connection assembly (400) fitted between the outer duct body (1) and the inner duct body (2).

2. A quick-plug mating air duct according to claim 1, wherein: The pipe fitting assembly (400) includes a first docking component (410) and a second docking component (420). Both the first docking component (410) and the second docking component (420) are fitted between the outer pipe body (1) and the inner pipe body (2). The first docking component (410) and the second docking component (420) are mirror images of each other. The two sets of first docking components (410) and the two sets of second docking components (420) are spliced ​​into a frame structure. A reinforcing component (430) is fixed between the inner walls of adjacent first docking components (410) and the inner walls of second docking components (420). The first docking components (410) and the second docking components (420) have the same structure. The first snap-fit ​​plate (500) is slidably snapped into the inside of the two sets of first docking components (410), and the second snap-fit ​​plate (600) is slidably snapped into the inside of the two sets of second docking components (420).

3. A quick-plug mating air duct according to claim 2, wherein: The first docking component (410) includes a top plate (412) fitted to the top surface of the outer tube (1) and the top surface of the inner tube (2), a first clamping plate (411) connected to one side of the top plate (412), a second clamping plate (413) connected to the other side of the top plate (412), a third clamping plate (414) connected to the inner wall of the second clamping plate (413), and a through-hole connection between the first clamping plate (411) and the second clamping plate (413). The first fixing bolt (415) and the first clamping plate (411) are attached to the inner wall of the inner tube (2), and the third clamping plate (414) is attached to the outer wall of the outer tube (1). The first fixing bolt (415) is connected through the outer tube (1), the inner tube (2) and the inner partition (300). The third clamping plate (414) has an inverted J-shaped structure. The first snap-fit ​​plate (500) is slidably snapped into the inverted J-shaped structure of the third clamping plate (414) on one side.

4. A quick-plug mating air duct according to claim 3, wherein: The first clamping plate (411), the top plate (412), the second clamping plate (413), and the third clamping plate (414) are an integral bending structure.

5. A quick-plug mating air duct according to claim 3, wherein: The reinforcing component (430) includes a fixing plate (432) that fits against the inner wall of the first clamping plate (411), a diagonal bracing plate (431) that is inclined to the side wall of the fixing plate (432), and a second fixing bolt (433) that penetrates and connects inside the fixing plate (432). One end of the second fixing bolt (433) penetrates and connects inside the first clamping plate (411) and the inner tube (2). There are two fixing plates (432) that are mirror images of the vertical center line of the diagonal bracing plate (431).

6. A quick-plug mating air duct according to claim 5, wherein: The reinforcing component (430) also includes a rib groove (434) inside the bracing plate (431). The side of the rib groove (434) near the inner wall of the bracing plate (431) is concave, and the side of the rib groove (434) near the outer wall of the bracing plate (431) is convex.

7. A quick-plug mating air duct according to claim 1, wherein: The inner solid component (700) includes a connecting rod (710) that penetrates and connects to the inside of the outer tube (1). Both ends of the connecting rod (710) are respectively disposed through the outer wall of the outer tube (1). Two clamping discs (720) are sleeved on the outer wall of the connecting rod (710). The clamping discs (720) are attached to the outer wall of the outer tube (1). Limiting rings (730) are fixedly sleeved on the outer walls of both ends of the connecting rod (710). The limiting rings (730) are inserted into the inside of the clamping discs (720).

8. A quick-plug mating air duct according to claim 1, wherein: The first card plate (500) has a push groove (510) on both its top and bottom surfaces. The push groove (510) has an inverted trapezoidal structure.

Images