A modular combined air conditioning duct
Through modular design and detachable flange connection, flexible air delivery and precise control of air conditioning duct are achieved, solving the problems of inconvenient disassembly and assembly and single air delivery direction in the existing technology, and improving the system's flexibility and maintenance convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 江苏德融空调科技有限公司
- Filing Date
- 2026-05-28
- Publication Date
- 2026-06-30
AI Technical Summary
Most existing air conditioning ducts are integrated structures, which cannot be flexibly disassembled and combined, and can only supply air in two directions, limiting the air supply range and flexibility, and failing to meet the multi-directional air supply needs of large or complex indoor environments.
The design is modular and includes the duct body, air inlet pipe, and No. 1 and No. 2 air outlet pipes. The baffle is driven by a cylinder to rotate inside the air outlet pipe, so as to achieve precise control of air direction and air volume. It adopts a detachable flange connection structure to simplify the disassembly and assembly process.
It enables flexible air delivery through the three-way pipe, precisely controls the airflow direction and flow rate, reduces noise and vibration, improves energy efficiency, and simplifies the disassembly and maintenance process.
Smart Images

Figure CN122305608A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of air conditioning duct technology, specifically to a modular combined air conditioning duct. Background Technology
[0002] Air conditioning ducts are a crucial component of air conditioning systems. They are responsible for delivering hot or cold air to every corner of the room, ensuring uniform indoor temperature distribution and improving user comfort.
[0003] Most existing air conditioning ducts adopt an integrated structure, which means that the various parts of the duct are fixedly connected during manufacturing and cannot be easily disassembled and combined. In addition, most existing air conditioning ducts are two-way pipes, which means that the duct can only deliver air in two directions. This limits the range and flexibility of air delivery. In some large or complex indoor environments, it may be necessary to deliver air in multiple directions to meet the needs of different areas, and two-way pipes cannot meet this requirement.
[0004] For example, the patented patent CN106403214A discloses a three-way connection assembly for air conditioning refrigeration pipes. Although the air conditioning refrigeration pipe in this patent is designed as a three-way pipe with three connection ports, it does not have a flexible airflow control function. This makes it impossible for users to determine and control which opening the airflow exits from according to actual usage needs, and also impossible to accurately control the airflow rate exiting from each opening. In addition, the connection pipe body in this patent is made as a single piece, which means that it is not a modular or detachable component. When maintenance or replacement of a certain part is required, the entire component may need to be disassembled, which increases the complexity and cost of maintenance.
[0005] Therefore, it is necessary to invent a modular and combined air conditioning duct to solve the above problems. Summary of the Invention
[0006] The purpose of this invention is to provide a modular and combined air conditioning duct to solve the problems of inconvenient disassembly and assembly of ducts and the fact that ducts can only deliver air in two directions, which limits the range and flexibility of air delivery.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a modular combined air conditioning duct, comprising a duct body, a first air outlet pipe, and a second air outlet pipe. One end of the duct body is provided with an air inlet pipe, and the other end of the duct body is provided with the first and second air outlet pipes. A mounting bracket is provided at the top of the first and second air outlet pipes. A cylinder is provided on one side of the mounting bracket, and one end of the cylinder is rotatably connected inside the mounting bracket. A connector is connected to the output end of the cylinder, and a connecting plate is hinged to the connector. A shaft seat is provided below the connecting plate. Baffles are provided inside the first and second air outlet pipes. A first flange is provided at one end of the duct body, and a second flange is provided at one end of the air inlet pipe. A plug-in block is provided on one side of the second flange, and a plug-in groove is formed on one side of the second flange. The plug-in block and the plug-in groove are matched.
[0008] Preferably, the No. 1 air outlet pipe and the No. 2 air outlet pipe have the same structural design, and the air inlet end of the No. 1 air outlet pipe and the air outlet end of the No. 2 air outlet pipe are connected to the air outlet end of the pipe body to ensure unobstructed airflow.
[0009] Preferably, the bearing is located at the upper and lower ends of the outer wall of the first and second air outlet pipes. The bearing has a rotating shaft rotatably installed inside, and the top of the rotating shaft is rotatably connected to the connecting plate. The bearing and the rotating shaft allow the baffle to rotate inside the first and second air outlet pipes to adjust the air direction or air volume.
[0010] Preferably, the rotating shaft is located at the center of the baffle, which has a disc-shaped structure. The outer diameter of the baffle is equal to the inner diameter of the first and second air outlet pipes, ensuring that the baffle can completely cover or open the cross-section of the air outlet pipes when rotating, thereby achieving precise control of the air volume.
[0011] Preferably, the first flange and the second flange have the same structural design, and a sealing ring is provided at the connection between the first flange and the second flange. The sealing ring is glued to the surface of the second flange by adhesive, and a tight connection is achieved by the sealing ring to prevent air leakage.
[0012] Preferably, a spigot pipe is provided at one end of the second flange near the pipe body. The spigot pipe is snapped into the inside of the pipe body, making installation more convenient and faster.
[0013] Preferably, the plug-in block has an "L" shaped structure design, and the plug-in block and the plug-in slot are connected by a snap-fit connection. The design of the plug-in block and the plug-in slot also facilitates disassembly and reinstallation.
[0014] Preferably, a connecting seat is provided on one side wall of the first flange, and a limiting plate is hinged on the connecting seat, which can be flexibly adjusted.
[0015] Preferably, a fixing bolt is connected through the limiting plate, and a screw hole is opened on the other side of the second flange. The fixing bolt and the screw hole are matched, and the matching of the fixing bolt and the screw hole makes the connection between the first flange and the second flange both firm and easy to disassemble.
[0016] The technical effects and advantages provided by the present invention in the above technical solution are as follows: 1. The pipe design in this invention is a three-way pipe, which is divided into an air inlet pipe and two air outlet pipes (air outlet pipe No. 1 and air outlet pipe No. 2). Baffles are installed inside air outlet pipe No. 1 and air outlet pipe No. 2. The baffles are driven by a cylinder and can rotate inside the air outlet pipe. By adjusting the position of the baffles, the airflow can be precisely controlled from which air outlet pipe to be discharged and the amount of airflow discharged. In addition, the presence of the baffles can also reduce the impact of airflow on the air outlet pipe wall to a certain extent, thereby reducing noise and vibration. At the same time, in some cases, it may be necessary to discharge airflow from only one air outlet pipe. In this case, by closing the baffle of the other air outlet pipe, unnecessary energy loss can be reduced and the energy efficiency of the entire ventilation system can be improved. 2. This invention adopts a detachable structure between the pipe body and the air inlet pipe. When disassembling the pipe body and the air inlet pipe, it is only necessary to manually loosen the six fixing bolts and then turn the air inlet pipe in the opposite direction so that the plug block on the side wall of the air inlet pipe can be disengaged from the plug groove on the side wall of the pipe body. No complicated tools are required during the disassembly and assembly process. This specific disassembly and assembly method not only simplifies the disassembly and assembly process and improves the efficiency of disassembly and assembly, but also enhances the flexibility of the system and the characteristics of easy maintenance and replacement. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the No. 1 and No. 2 air outlet pipes of the present invention. Figure 3 This is a right-side view of the No. 1 and No. 2 air outlet pipes of the present invention. Figure 4 This is a three-dimensional cross-sectional view of the No. 2 air outlet duct of the present invention; Figure 5 This is a three-dimensional exploded view of the pipe body and air inlet pipe of the present invention. Figure 6 This is a top-explosive structural diagram of the pipe body and air inlet pipe of the present invention; Figure 7 This is a three-dimensional structural diagram of the insertion tube of the present invention; Figure 8 This is a three-dimensional cross-sectional view of the insertion slot of the present invention; Figure 9 For the present invention Figure 8 Enlarged 3D structural diagram at point A.
[0018] Explanation of reference numerals in the attached figures: 1. Pipe body; 2. Inlet pipe; 3. No. 1 outlet pipe; 4. No. 2 outlet pipe; 5. Mounting bracket; 6. Cylinder; 7. Connector; 8. Connecting plate; 9. Shaft seat; 10. Rotating shaft; 11. Baffle; 12. No. 1 flange; 13. No. 2 flange; 14. Sealing ring; 15. Insert pipe; 16. Insert block; 17. Insert groove; 18. Connecting seat; 19. Limiting plate; 20. Fixing bolt; 21. Screw hole. Detailed Implementation
[0019] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.
[0020] This invention provides, for example Figure 1-8 The modular combined air conditioning duct shown includes a duct body 1, a first air outlet duct 3, and a second air outlet duct 4. One end of the duct body 1 is provided with an air inlet duct 2, and the other end of the duct body 1 is provided with the first air outlet duct 3 and the second air outlet duct 4. The top of the first air outlet duct 3 and the second air outlet duct 4 is provided with a mounting bracket 5. A cylinder 6 is provided on one side of the mounting bracket 5. One end of the cylinder 6 is rotatably connected to the inside of the mounting bracket 5. The output end of the cylinder 6 is connected to a connector 7. A connecting plate 8 is hinged to the connector 7. A bearing seat 9 is provided below the connecting plate 8. A baffle 11 is provided inside the first air outlet duct 3 and the second air outlet duct 4. One end of the duct body 1 is provided with a first flange 12, and one end of the air inlet duct 2 is provided with a second flange 13. A plug-in block 16 is provided on one side of the second flange 13. A plug-in groove 17 is opened on one side of the second flange 13. The plug-in block 16 and the plug-in groove 17 are matched.
[0021] The No. 1 air outlet duct 3 and the No. 2 air outlet duct 4 have the same structural design. The air inlet end of the No. 1 air outlet duct 3 and the No. 2 air outlet duct 4 are connected to the air outlet end of the duct body 1. The bearing seat 9 is located at the upper and lower ends of the outer wall of the No. 1 air outlet duct 3 and the No. 2 air outlet duct 4. The bearing seat 9 has a rotating shaft 10 inside. The top of the rotating shaft 10 is rotatably connected to the connecting plate 8. The rotating shaft 10 is located at the center of the baffle 11. The baffle 11 has a disc-shaped structure design. The outer diameter of the baffle 11 is equal to the inner diameter of the No. 1 air outlet duct 3 and the No. 2 air outlet duct 4.
[0022] The No. 1 air outlet duct 3 and the No. 2 air outlet duct 4 are connected to the duct body 1 to form a complete airflow path. A disc-shaped rotatable baffle 11 is installed inside the No. 1 air outlet duct 3 and the No. 2 air outlet duct 4. The rotating baffle 11 is driven by the cylinder 6, which realizes precise control of air volume and air direction and increases the flexibility of the air outlet end of the air outlet duct.
[0023] Flange 12 and flange 13 have the same structural design. A sealing ring 14 is provided at the connection between flange 12 and flange 13. The sealing ring 14 is glued to the surface of flange 13. A plug pipe 15 is provided at the end of flange 13 near the pipe body 1. The plug pipe 15 is snapped into the inside of the pipe body 1. The plug block 16 has an "L" shaped structure design. The plug block 16 and the plug groove 17 are snapped together. A connecting seat 18 is provided on the side wall of flange 12. A limit plate 19 is hinged on the connecting seat 18. A fixing bolt 20 is connected through the limit plate 19. A screw hole 21 is opened on the other side of flange 13. The fixing bolt 20 matches the screw hole 21.
[0024] The main pipe 1 and the air inlet pipe 2 are connected by flange 12 and flange 13, and a snap-fit connection structure of plug block 16 and plug groove 17 is provided, as well as a limiting plate 19 on the connecting seat 18. The plug block 16 is snap-fitted with the plug groove 17 to increase the stability of the connection, while the limiting plate 19 is hinged to the connecting seat 18 and can be rotated and fixed on the other side of flange 13. The tight connection and stability between flange 12 and flange 13 are ensured by the matching connection of fixing bolts 20 and screw holes 21.
[0025] Working principle of this invention: Refer to the instruction manual appendix Figure 1-4 When using this invention, firstly, when the pipe body 1 needs ventilation, the cylinder 6 is activated. The output end of the cylinder 6 pushes or pulls the connector 7, thereby moving the connecting plate 8. The movement of the connecting plate 8 is transmitted to the baffle 11 through the bearing 9 and the rotating shaft 10. Since the rotating shaft 10 is located at the center of the baffle 11, the baffle 11 will rotate around the rotating shaft 10. By rotating the baffle 11, the opening size of the first air outlet pipe 3 and the second air outlet pipe 4 can be changed, thereby adjusting the air direction and air speed. When the baffle 11 completely covers one of the air outlet pipes (the first air outlet pipe 3 and the second air outlet pipe 4), the air volume of the air outlet pipe (the first air outlet pipe 3 and the second air outlet pipe 4) will be reduced or completely stopped. When the baffle 11 is partially or fully opened, the air volume will increase accordingly. Thus, the use of the first air outlet pipe 3 and the second air outlet pipe 4 can be selected according to the usage requirements. Refer to the instruction manual appendix Figure 5-9When using this invention, align flange 12 and flange 13 to prepare for connecting air inlet pipe 2 to pipe body 1. Align plug block 16 with plug groove 17 and gradually enter the entrance of plug groove 17. When plug block 16 enters the plug groove 17 to a certain depth, slightly turn air inlet pipe 2 so that part of plug block 16 can be locked inside plug groove 17, thereby achieving initial positioning and fixing. After the initial positioning and fixing is completed, adjust the position of limiting plate 19 and manually turn fixing bolt 20 in sequence so that fixing bolt 20 is fixed inside screw hole 21 on the other side of flange 13 to achieve additional positioning and fixing effect. At this point, the connection between pipe body 1 and air inlet pipe 2 is completely fixed. If replacement, maintenance or cleaning is required later, simply follow the reverse steps.
Claims
1. A modular combined air conditioning duct, comprising a duct body (1), a first air outlet duct (3), and a second air outlet duct (4), characterized in that: One end of the pipe body (1) is provided with an air inlet pipe (2), and the other end of the pipe body (1) is provided with a first air outlet pipe (3) and a second air outlet pipe (4). A mounting bracket (5) is provided at the top of the first air outlet pipe (3) and the second air outlet pipe (4). A cylinder (6) is provided on one side of the mounting bracket (5). One end of the cylinder (6) is rotatably connected inside the mounting bracket (5). A connector (7) is connected to the output end of the cylinder (6), and a connecting plate (8) is hinged to the connector (7). A bearing seat (9) is provided below the connecting plate (8). Baffles (11) are provided inside the first air outlet pipe (3) and the second air outlet pipe (4). A first flange (12) is provided at one end of the pipe body (1). A second flange (13) is provided at one end of the air inlet pipe (2). A plug-in block (16) is provided on one side of the second flange (13). A plug-in groove (17) is opened on one side of the second flange (13). The plug-in block (16) and the plug-in groove (17) are matched.
2. The modular combined air conditioning duct according to claim 1, characterized in that: The No. 1 air outlet pipe (3) and the No. 2 air outlet pipe (4) have the same structural design. The air inlet end of the No. 1 air outlet pipe (3) and the No. 2 air outlet pipe (4) are connected to the air outlet end of the pipe body (1).
3. The modular combined air conditioning duct according to claim 1, characterized in that: The bearing seat (9) is located at the upper and lower ends of the outer walls of the first air outlet pipe (3) and the second air outlet pipe (4). The bearing seat (9) is rotatably equipped with a rotating shaft (10), and the top of the rotating shaft (10) is rotatably connected to the connecting plate (8).
4. A modular combined air conditioning duct according to claim 3, characterized in that: The rotating shaft (10) is located at the center of the baffle (11), which has a disc-shaped structure. The outer diameter of the baffle (11) is equal to the inner diameter of the first air outlet pipe (3) and the second air outlet pipe (4).
5. A modular combined air conditioning duct according to claim 1, characterized in that: The first flange (12) and the second flange (13) have the same structural design. A sealing ring (14) is provided at the connection between the first flange (12) and the second flange (13). The sealing ring (14) is glued to the surface of the second flange (13).
6. A modular combined air conditioning duct according to claim 5, characterized in that: The second flange (13) is provided with a plug pipe (15) at one end near the pipe body (1), and the plug pipe (15) is snapped into the inside of the pipe body (1).
7. A modular combined air conditioning duct according to claim 1, characterized in that: The plug block (16) has an "L" shaped structure design, and the plug block (16) and the plug slot (17) are connected by a snap-fit connection.
8. A modular combined air conditioning duct according to claim 5, characterized in that: A connecting seat (18) is provided on one side wall of the first flange (12), and a limit plate (19) is hinged on the connecting seat (18).
9. A modular combined air conditioning duct according to claim 8, characterized in that: A fixing bolt (20) is connected through the limiting plate (19), and a screw hole (21) is opened on the other side of the second flange (13). The fixing bolt (20) and the screw hole (21) are matched.