A highly adaptable air duct
By introducing transition mechanisms and fixing components into the ductwork, a transitional connection between square and round ducts is achieved, solving the problem of insufficient applicability of ductwork in different scenarios and improving the applicability and stability of the ductwork.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NG TERASUN AIR DUCT
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing ductwork has limited applicability in different usage scenarios. Rectangular ductwork is suitable for embedding in walls but takes up a lot of space, while circular ductwork has low airflow resistance but is not easy to install, making it difficult to balance space and airflow requirements.
A highly adaptable duct is designed by setting a transition mechanism between a square first duct body and a circular second duct body, including a transition frame, a transition plate and a fixing component, to achieve a transition connection between the square and circular ducts. The connection is achieved by using the insertion and limiting method of the transition plate and the fixing component.
It enables flexible transformation of duct shape, improves the applicability of duct in different scenarios, enhances connection stability and sealing, and reduces the probability of gas leakage.
Smart Images
Figure CN224516188U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of ventilation equipment, and in particular to a highly adaptable air duct. Background Technology
[0002] Air ducts are piping systems used for air transport and distribution, widely used in buildings, industry, and air conditioning systems. Their main uses include: air transport (such as supply air, return air, fresh air intake, and exhaust air), temperature control (in conjunction with air conditioning or heating systems), purification and filtration (reducing dust and pollutants), and in industrial applications for dust removal, fume extraction, and bulk material transport.
[0003] In related technologies, one can refer to Chinese utility model patent with authorization announcement number CN218378349U, which discloses a composite air duct, including: an outer pipe, both ends of which are provided with outwardly extending mounting rings, and mounting holes are evenly provided on the mounting rings; an inner pipe, which is disposed inside the inner pipe; and a reinforcing device, which is disposed outside the outer pipe. The reinforcing device includes a support structure and a reinforcing structure. The support structure is disposed inside the inner pipe and extends through to the outer pipe, and the reinforcing structure is disposed outside the outer pipe and is used to reinforce the outer pipe.
[0004] In the actual manufacturing process of air ducts, the cross-sectional shape of the duct usually needs to be customized according to the actual installation requirements. Some ducts, like the ones mentioned above, have rectangular cross-sections, while others have circular cross-sections. Generally, circular ducts have lower airflow resistance and are suitable for long-distance air delivery, but they occupy more space; while rectangular ducts are easier to embed in walls or ceilings, saving installation space and are the most widely used in engineering applications. Therefore, when selecting and installing ducts in a given scenario, it is often necessary to comprehensively consider the performance of both shapes and sizes, as ducts with a single cross-sectional shape have limited applicability to different scenarios. Utility Model Content
[0005] To improve the applicability of air ducts to different usage scenarios, this application provides a highly applicable air duct.
[0006] This application provides a highly adaptable air duct, which adopts the following technical solution: A highly adaptable air duct includes a first duct body and a second duct body. The first duct body has a square cross-section, and the second duct body has a circular cross-section. A transition mechanism is provided between the first duct body and the second duct body, connecting them together. The transition mechanism includes: A transition frame, the cross-section of which is square, is connected to the first tube body; The first transition plate is triangular in shape, and there are four first transition plates, which are respectively located on the four sides of the transition frame. A transition ring, the transition ring having a circular cross-section, is connected to the second pipe body; The second transition plate is disposed on the transition ring. There are four second transition plates. The four second transition plates are evenly distributed along the circular surface of the transition ring. The second transition plate is inserted between two adjacent first transition plates and abuts against both adjacent first transition plates. A fixing component is disposed between a first transition plate and a second transition plate, and the fixing component is used to fix the relative position between the first transition plate and the second transition plate.
[0007] By adopting the above technical solution, a transition frame with a first transition plate is installed on the first duct body, and a transition ring with a second transition plate is installed on the second duct body. The first and second duct bodies are connected by interlocking the second and first transition plates and limiting them with a fixing component, thereby completing the transition connection between square and round ducts. This allows the duct shape to be changed to adapt to different work requirements, greatly improving the applicability of the duct.
[0008] Optionally, the fixing component includes: The first fixing plate is disposed on the side of the first transition plate, and a fixing groove is provided on the first fixing plate. The side of the second transition plate is inserted into the fixing groove on the first fixing plate. The second fixing plate is disposed on the transition frame; The third fixing plate is disposed on the second transition plate, and the second fixing plate and the third fixing plate are provided with a first fixing hole and a second fixing hole; A fixing screw, which passes sequentially through the first fixing hole and the second fixing hole on the second fixing plate and the third fixing plate; A fixing nut is threaded onto a fixing screw and abuts against a third fixing plate.
[0009] By adopting the above technical solution, a first fixing plate is installed on the side of the first transition plate, and a second transition plate is inserted into the fixing groove of the first fixing plate. Then, the fixing screw is moved through the first fixing hole and the second fixing hole on the second fixing plate and the third fixing plate in sequence. The fixing nut is tightened on the fixing screw, so that the second transition plate is pressed against the fixing groove, thereby completing the position fixing work between the first transition plate and the second transition plate.
[0010] Optionally, a first reinforcing rib is provided between the first transition plate and the transition frame, and a second reinforcing rib is provided on the first transition plate.
[0011] By adopting the above technical solution, a first reinforcing rib is installed between the first transition plate and the transition frame, which strengthens the connection between the first transition plate and the transition frame. A second reinforcing rib is installed on the first transition plate, which improves the structural strength of the first transition plate itself, thereby ensuring the overall structural strength and stability of the duct.
[0012] Optionally, a connecting component is provided between the transition frame and the first pipe body, and the transition frame and the first pipe body are connected together by the connecting component, the connecting component including: A first connecting plate is disposed on the first tube body; The second connecting plate is disposed on the transition frame, and the first connecting plate and the second connecting plate are pressed together. A connecting screw, which passes sequentially through a first connecting plate and a second connecting plate; A connecting nut, which is threaded onto the connecting screw and abuts against the second connecting plate.
[0013] By adopting the above technical solution, a first connecting plate is installed on the first pipe body, and a second connecting plate is installed on the transition frame. After the first connecting plate and the second connecting plate are pressed together, they are limited by the connecting screw and the connecting nut, thereby completing the connection and fixing work between the first pipe body and the transition frame.
[0014] Optionally, a sealing ring is fitted between the first connecting plate and the second connecting plate.
[0015] By adopting the above technical solution, a sealing ring is fitted between the first connecting plate and the second connecting plate, thereby improving the sealing performance between the first connecting plate and the second connecting plate and reducing the probability of gas leakage from the duct between the first connecting plate and the second connecting plate.
[0016] Optionally, an inclined guide surface is provided on one end face of the first fixing plate near the inner side of the first tube.
[0017] By adopting the above technical solution, an inclined guide surface is opened on the end face of the first fixed plate near the inner side of the first pipe body, which greatly reduces the resistance generated when the end of the first fixed plate located inside the first pipe body comes into contact with the gas in the duct, making it convenient for long-distance air supply.
[0018] Optionally, a rubber sealing gasket is provided in the fixing groove of the first fixing plate, and the second transition plate abuts against the rubber sealing gasket.
[0019] By adopting the above technical solution, a rubber sealing gasket is installed in the fixing groove of the first fixing plate, thereby improving the sealing performance of the second transition plate in the fixing groove and reducing the probability of gas leakage from the connection between the second transition plate and the first fixing plate.
[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. By installing a transition frame with a first transition plate on the first duct body and a transition ring with a second transition plate on the second duct body, the first duct body and the second duct body are connected by interlocking the second transition plate and the first transition plate and limiting the position by a fixing component, thus completing the transition connection between square duct and round duct. This allows the duct shape to be changed to adapt to different work requirements in different scenarios, greatly improving the applicability of the duct. 2. By installing a first fixing plate on the side of the first transition plate, inserting the second transition plate into the fixing groove of the first fixing plate, and then moving the fixing screw through the first fixing hole and the second fixing hole on the second fixing plate and the third fixing plate in sequence, and tightening the fixing nut on the fixing screw, the second transition plate can be pressed against the fixing groove, thereby completing the position fixing work between the first transition plate and the second transition plate. 3. By installing a rubber sealing gasket in the fixing groove of the first fixing plate, the sealing performance of the second transition plate in the fixing groove is improved, and the probability of gas leakage from the connection between the second transition plate and the first fixing plate is reduced. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of this application; Figure 2 yes Figure 1 Enlarged diagram of section A in the middle; Figure 3 This is a schematic diagram of the structure when the first fixing plate and the second transition plate are connected in this application.
[0022] Reference numerals: 11. First tube body; 12. Second tube body; 13. Sealing ring; 2. Transition mechanism; 21. Transition frame; 22. First transition plate; 23. Transition ring; 24. Second transition plate; 25. Fixing component; 3. Connecting component; 31. First connecting plate; 32. Second connecting plate; 33. Connecting screw; 34. Connecting nut; 35. First reinforcing rib plate; 36. Second reinforcing rib plate; 41. First fixing plate; 42. Second fixing plate; 43. Third fixing plate; 44. Fixing screw; 45. Fixing nut; 46. Fixing groove; 47. Rubber sealing gasket; 48. Guide surface. Detailed Implementation
[0023] The following is in conjunction with the appendix Figure 1 -Appendix Figure 2 This application will be described in further detail.
[0024] This application discloses a highly adaptable air duct.
[0025] Reference Figure 1 The high-applicability duct includes a first duct body 11 and a second duct body 12. The first duct body 11 has a square cross-section, and the second duct body 12 has a circular cross-section. A transition mechanism 2 is provided between the first duct body 11 and the second duct body 12, and the first duct body 11 and the second duct body 12 are connected together by the transition mechanism 2.
[0026] Reference Figure 1 and Figure 2 The transition mechanism 2 includes a transition frame 21, a first transition plate 22, a transition ring 23, a second transition plate 24, and a fixing component 25. The transition frame 21 has a square cross-section. A connecting component 3 is provided between the transition frame 21 and the first tube 11, and the transition frame 21 and the first tube 11 are connected together by the connecting component 3.
[0027] Reference Figure 1 and Figure 2 The connecting assembly 3 includes a first connecting plate 31, a second connecting plate 32, a connecting screw 33, and a connecting nut 34. The first connecting plate 31 is fixedly installed on the end of the first tube 11. The second connecting plate 32 is fixedly installed on the outer wall of the transition frame 21. The first connecting plate 31 and the second connecting plate 32 are pressed together. Each of the four corners of the first connecting plate 31 and the second connecting plate 32 has a connecting hole that communicates with each other. The connecting screw 33 passes through the connecting holes on the first connecting plate 31 and the second connecting plate 32 in sequence. The connecting nut 34 is threaded onto the connecting screw 33 and presses against the second connecting plate 32. A sealing ring 13 is fitted between the first connecting plate 31 and the second connecting plate 32.
[0028] Reference Figure 1 and Figure 2 Four first transition plates 22 are provided, arranged in a triangular pattern, and fixedly installed on the four sides of the transition frame 21. A first reinforcing rib 35 is fixedly installed on the outer wall of the connection between the first transition plate 22 and the transition frame 21, and a second reinforcing rib 36 is fixedly installed on the outer wall of the first transition plate 22. The first reinforcing rib 35 strengthens the connection between the first transition plate 22 and the transition frame 21. The second reinforcing rib 36 improves the structural strength of the first transition plate 22 itself, thereby ensuring the overall structural strength and stability of the duct.
[0029] Reference Figure 1 and Figure 2The transition ring 23 has a circular cross-section and is fixedly installed at the end of the second tube 12. The second transition plate 24 is fixedly installed on the side wall of the transition ring 23 away from the first tube 11. Four second transition plates 24 are provided, evenly distributed along the circular surface of the transition ring 23. One second transition plate 24 is inserted between two adjacent first transition plates 22.
[0030] Reference Figure 1 and Figure 2 The fixing component 25 is disposed between the first transition plate 22 and the second transition plate 24, and is used to fix the relative position between the first transition plate 22 and the second transition plate 24. The fixing component 25 includes a first fixing plate 41, a second fixing plate 42, a third fixing plate 43, a fixing screw 44, and a fixing nut 45.
[0031] Reference Figure 2 and Figure 3 The first fixing plate 41 is fixedly installed on the side wall of the first transition plate 22 away from the first tube body 11. A fixing groove 46 is formed on the side of the first fixing plate 41 near the second transition plate 24. The side of the second transition plate 24 is inserted into the fixing groove 46 on the first fixing plate 41. A rubber sealing gasket 47 is provided in the fixing groove 46 of the first fixing plate 41, and the second transition plate 24 abuts against the rubber sealing gasket 47. An inclined guide surface 48 is formed on the end face of the first fixing plate 41 near the inner side of the first tube body 11.
[0032] Reference Figure 2 The second fixing plate 42 is fixedly installed on the outer wall of the transition frame 21. The third fixing plate 43 is fixedly installed on the outer wall of the second transition plate 24. Both the second fixing plate 42 and the third fixing plate 43 have a first fixing hole and a second fixing hole. The fixing screw 44 passes through the first fixing hole and the second fixing hole on the second fixing plate 42 and the third fixing plate 43 in sequence. The fixing nut 45 is threaded onto the fixing screw 44 and abuts against the third fixing plate 43.
[0033] The working principle of this application embodiment is as follows: A transition frame 21 with a first transition plate 22 is installed on the first duct body 11, and a transition ring 23 with a second transition plate 24 is installed on the second duct body 12. The first duct body 11 and the second duct body 12 are connected by interlocking the second transition plate 24 and the first transition plate 22, thereby completing the transition connection between the square duct and the round duct. This allows the duct shape to be changed to adapt to different work requirements, greatly improving the applicability of the duct.
[0034] 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 high-utility air duct, characterized by: The system includes a first tube (11) and a second tube (12). The first tube (11) has a square cross-section, and the second tube (12) has a circular cross-section. A transition mechanism (2) is provided between the first tube (11) and the second tube (12). The first tube (11) and the second tube (12) are connected together by the transition mechanism (2). The transition mechanism (2) includes: Transition frame (21), the cross section of the transition frame (21) is square, and the transition frame (21) is connected to the first tube (11); The first transition plate (22) is triangular in shape. There are four first transition plates (22), which are respectively located on the four sides of the transition frame (21). Transition ring (23), the cross-section of the transition ring (23) is circular, and the transition ring (23) is connected to the second tube body (12); The second transition plate (24) is disposed on the transition ring (23). There are four second transition plates (24). The four second transition plates (24) are evenly distributed along the circular surface of the transition ring (23). The second transition plate (24) is inserted between two adjacent first transition plates (22) and abuts against both adjacent first transition plates (22). A fixing component (25) is disposed between a first transition plate (22) and a second transition plate (24), and the fixing component (25) is used to fix the relative position between the first transition plate (22) and the second transition plate (24).
2. The high adaptability air duct according to claim 1, characterized in that: The fixing component (25) includes: The first fixing plate (41) is disposed on the side of the first transition plate (22), and a fixing groove (46) is provided on the first fixing plate (41). The side of the second transition plate (24) is inserted into the fixing groove (46) on the first fixing plate (41). The second fixing plate (42) is disposed on the transition frame (21); The third fixing plate (43) is disposed on the second transition plate (24), and the second fixing plate (42) and the third fixing plate (43) are provided with a first fixing hole and a second fixing hole; A fixing screw (44) passes through the first fixing hole and the second fixing hole on the second fixing plate (42) and the third fixing plate (43) in sequence; A fixing nut (45) is threaded onto a fixing screw (44) and abuts against a third fixing plate (43).
3. The high adaptability air duct according to claim 1, characterized in that: A first reinforcing rib (35) is provided between the first transition plate (22) and the transition frame (21), and a second reinforcing rib (36) is provided on the first transition plate (22).
4. The high adaptability air duct according to claim 1, characterized in that: A connecting component (3) is provided between the transition frame (21) and the first tube (11), and the transition frame (21) and the first tube (11) are connected together by the connecting component (3). The connecting component (3) includes: The first connecting plate (31) is disposed on the first tube body (11); The second connecting plate (32) is disposed on the transition frame (21), and the first connecting plate (31) and the second connecting plate (32) are pressed together; A connecting screw (33) passes through the first connecting plate (31) and the second connecting plate (32) in sequence. A connecting nut (34) is threaded onto a connecting screw (33) and abuts against a second connecting plate (32).
5. A high adaptability duct according to claim 4, characterized in that: A sealing ring (13) is fitted between the first connecting plate (31) and the second connecting plate (32).
6. The high adaptability air duct according to claim 2, characterized in that: An inclined guide surface (48) is provided on one end face of the first fixing plate (41) near the inner side of the first tube body (11).
7. The high adaptability duct according to claim 2, characterized in that: A rubber sealing gasket (47) is provided in the fixing groove (46) of the first fixing plate (41), and the second transition plate (24) abuts against the rubber sealing gasket (47).