Scale collecting assembly of heating and ventilation pipeline
By adjusting the bolt position and chain tension, the chain can adapt to different pipe diameters, and the barrier net folding mechanism can adapt to curved pipes. This solves the problem of poor compatibility of existing HVAC pipe scale collection components and improves the convenience of installation and maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 汤旺县供热服务中心
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-17
AI Technical Summary
Existing scale collection components for HVAC ducts are difficult to adapt to different pipe diameters, resulting in poor equipment compatibility, increased procurement costs and installation and maintenance complexity, and limiting their application in diverse HVAC systems.
The chain can be dynamically adjusted to adapt to different pipe diameters by adjusting the bolt position and chain tension; the barrier net is folded by a four-bar linkage to adapt to the installation of narrow or curved pipes.
It improves the equipment compatibility and convenience of scale collection components, reduces the difficulty of installation and maintenance, and expands the scope of application.
Smart Images

Figure CN224136089U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of scale collection technology, and in particular to a scale collection component for HVAC pipes. Background Technology
[0002] In HVAC systems, over long-term use, the circulating water in the pipes gradually accumulates scale on the inner walls due to calcium, magnesium ions, and other minerals. This scale not only reduces the pipes' heat transfer efficiency and increases system energy consumption, but also causes blockages, affecting the system's normal operation and shortening equipment lifespan.
[0003] Existing HVAC duct scale collection components mostly employ a fixed structure design, using built-in filters, magnetic rods, and other devices to intercept and adsorb scale impurities in the water flow. The technical principle is to utilize the filter's pore size to intercept scale particles larger than the pore size, or to use the magnetic rod's magnetism to adsorb magnetic mineral particles in the water, thereby achieving scale collection. The filter structure is simple, easy to install and replace; the magnetic rod, through the action of a magnetic field, completes the adsorption process without direct contact with the water flow, reducing resistance to water flow to some extent.
[0004] However, existing fixed-structure scale collection components have significant drawbacks. Due to their fixed specifications, they are difficult to adapt to HVAC ducts of different diameters. When dealing with pipes of varying diameters, different specifications of components must be designed or procured separately for each diameter. This not only increases equipment procurement costs but also leads to poor equipment compatibility. In actual installation and maintenance, frequent replacement of different specifications of components is required, reducing work efficiency and limiting the application of scale collection components in diverse HVAC systems. Therefore, this paper proposes a scale collection component for HVAC ducts to solve the above problems. Summary of the Invention
[0005] The purpose of this invention is to provide a scale collection component for HVAC pipes to solve the problems mentioned in the background art.
[0006] By adopting the above technical solution, the effect of adapting to water pipes of different sizes can be achieved.
[0007] Compared with the prior art, the beneficial effects of this utility model are: the scale collection component for HVAC pipes,
[0008] By adjusting the position of the bolts, the position of the second connecting block can be adjusted, thereby making the chain tension adjustable and controlling the limit of chain rotation. This achieves the effect of adapting to water pipes of different sizes, solving the problem of poor equipment compatibility caused by the need to design or purchase different specifications of components for different pipe diameters, and improving the diversity of scale collection components for HVAC pipelines.
[0009] In this invention, pressing the button disengages the locking pin from the transmission rod, causing the collar to move. This then moves the first support block on the outer wall, which in turn moves the first connecting column and the second hollow block, simultaneously pulling the first connecting plate to move and gather the barrier net. Next, the third hollow block rotates on the side wall of the cross connecting plate, causing the second connecting column to move. This causes another first rotating sleeve and the second rotating sleeve to rotate on the outer wall of the second connecting column, achieving the effect of folding the barrier net. This solves the problem that fixed barrier nets are usually large in size, difficult to install in narrow or curved pipes, and affect the overall pipeline layout. It also improves the storage convenience of the scale collection component for HVAC pipelines. Attached Figure Description
[0010] Figure 1 This is a three-dimensional schematic diagram of a scale collection component for HVAC pipes proposed in this utility model;
[0011] Figure 2 This is a schematic diagram of the inner wall structure of a scale collection component for HVAC pipes proposed in this utility model;
[0012] Figure 3 This is a schematic diagram of the outer wall structure of the transmission rod of a scale collection component for HVAC pipes proposed in this utility model;
[0013] Figure 4 This is a schematic diagram of the outer wall structure of the collar of a scale collection component for HVAC pipes proposed in this utility model;
[0014] Figure 5 This is a schematic diagram of the barrier mesh sidewall structure of a scale collection component for HVAC pipes proposed in this utility model.
[0015] Figure 6 This is a schematic diagram of the outer wall structure of the scale collection component for HVAC pipes proposed in this utility model;
[0016] Figure 7 for Figure 4 Enlarged view of point A in the middle.
[0017] In the diagram: 1. Pipe; 2. Transmission rod; 3. Barrier net; 4. First connecting block; 5. Chain; 6. Second connecting block; 7. Bolt; 8. Hole; 9. First fixing post; 10. Second fixing post; 11. Button; 12. Locking post; 13. First support post; 14. First spring; 15. Collar; 16. Slide rail; 17. First support block; 18. First hollow block; 19. First connecting post; 20. Second hollow block; 21. First rotating sleeve; 22. Second rotating sleeve; 23. First connecting plate; 24. Cross connecting plate; 25. Third hollow block; 26. Second connecting post. Detailed Implementation
[0018] 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.
[0019] Please see Figure 1-3 This utility model provides a technical solution: a scale collection component for HVAC pipes, including a pipe 1, a transmission rod 2 is provided on the inner wall of the pipe 1, the transmission rod 2 serves as the main shaft for power transmission, transmitting the rotational motion of the external drive device to the chain 5 and the barrier net 3, an adjustment component is provided on the outer wall of the transmission rod 2, and a limit component is provided on the outer wall of the transmission rod 2.
[0020] The adjustment assembly includes a first connecting block 4 and a second connecting block 6. The side walls of both the first connecting block 4 and the second connecting block 6 are fixedly connected to the outer wall of the transmission rod 2. A first fixing post 9 is fixedly connected to the inner wall of the first connecting block 4. A chain 5 is provided on the outer wall of the first fixing post 9. The chain 5 surrounds the first fixing post 9 and forms a closed loop with the second fixing post 10. As the transmission rod 2 rotates, the chain 5 rolls along the inner wall of the pipe 1. Through frictional contact between the chain 5 and the inner wall of the pipe 1, it directly scrapes and peels off the attached scale particles, achieving a highly efficient cleaning effect. A second fixing post 10 is provided on the inner wall of the chain 5. The second fixed column 10 is fixedly connected to the inner wall of the second connecting block 6. The inner wall of the second connecting block 6 is threaded with bolts 7. By turning the bolts 7, the axial position of the second connecting block 6 on the transmission rod 2 is adjusted, the distance between the second fixed column 10 and the first fixed column 9 is changed, the tension and working diameter of the chain 5 are dynamically adjusted, adapting to different pipe diameters and avoiding slack or excessive wear of the chain 5. The outer wall of the bolts 7 is threaded inside the transmission rod 2. The transmission rod 2 has a hole 8 inside, and the outer wall of the first fixed column 9 is threaded inside the transmission rod 2.
[0021] 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.
[0022] Reference Figure 1 , Figures 4-7The limiting component includes a slide rail 16, the side wall of which is fixedly connected to the outer wall of the transmission rod 2. A collar 15 is slidably connected to the outer wall of the slide rail 16. The collar 15 slides axially along the slide rail 16, driving the first support block 17, the first hollow block 18, and the second hollow block 20. The barrier net 3 can be unfolded or folded by pushing and pulling the collar 15, facilitating equipment installation, maintenance, and operation in confined spaces. The inner wall of the collar 15 is slidably connected to the outer wall of the transmission rod 2. A first support column 13 is fixedly connected inside the collar 15. A button 11 is fixedly connected to one end of the first support column 13. Pressing the button... At 11 o'clock, the locking pin 12 disengages from the internal limiting hole of the transmission rod 2, releasing the fixed state of the collar 15; after release, the first spring 14 pushes the button 11 to reset, and the locking pin 12 re-engages into the limiting hole, realizing manual quick locking and unlocking of the barrier net 3 in the folded state, ensuring operational stability. The side wall of the button 11 is rotatably connected to the inside of the collar 15, and the locking pin 12 is fixedly connected to the side wall of the button 11. The outer wall of the locking pin 12 is set inside the transmission rod 2. The side wall of the button 11 is provided with a first spring 14, one end of which is fixedly connected to the side wall of the button 11. One end is fixedly connected to the outer wall of the collar 15. A first support block 17 is fixedly connected to the outer wall of the collar 15. A first hollow block 18 is rotatably connected to the side wall of the first support block 17. A first connecting post 19 is fixedly connected to the side wall of the first hollow block 18. A second hollow block 20 is fixedly connected to one end of the first connecting post 19. A first connecting plate 23 is rotatably connected to the inner wall of the second hollow block 20. A second rotating sleeve 22 and a first rotating sleeve 21 are rotatably connected to the outer wall of the first connecting plate 23. A barrier net 3 is fixedly connected to the side walls of both the first rotating sleeve 21 and the second rotating sleeve 22. One end of the transmission rod 2... A cross-shaped connecting plate 24 is fixedly connected. The first connecting plate 23, the first rotating sleeve 21, and the second rotating sleeve 22 form a four-bar linkage mechanism. The displacement of the second hollow block 20 drives the barrier net 3 to gather or unfold, converting the linear motion of the collar 15 into the rotational folding action of the barrier net 3, reducing the space occupied and adapting to the deployment of the pipe bend section. A third hollow block 25 is rotatably connected to the side wall of the cross-shaped connecting plate 24. A second connecting column 26 is fixedly connected to the side wall of the third hollow block 25. Another set of first rotating sleeves 21 and second rotating sleeves 22 is provided on the outer wall of the second connecting column 26.
[0023] Working principle: When using the scale collection component for HVAC pipes, first connect the transmission rod 2 to one end of the output shaft. Then, as the transmission rod 2 rotates, it drives the chain 5 to rotate on the inner wall of the pipe 1. The chain 5 cleans the scale on the inner wall of the pipe 1. Next, when adjusting the crushing diameter, first unscrew the bolt 7 from the inner wall of the second connecting block 6, so that its outer wall is separated from the inside of the transmission rod 2. Then, the position of the second connecting block 6 can be adjusted. Then, the second connecting block 6 drives the second fixed column 10 on the inner wall to move. Then, the tension of the chain 5 can be adjusted, and then the diameter of the chain 5 can be adjusted to adapt to different sizes of water pipes.
[0024] Next, during the folding of the barrier net 3, button 11 needs to be pressed first. The force applied to button 11 causes the first support column 13 to rotate on the inner wall of the collar 15. As button 11 rotates, it causes the locking column 12 to disengage from the transmission rod 2. Simultaneously, the force applied to button 11 retracts the first spring 14 on the side wall, resetting the locking column 12. Next, the collar 15 can be pushed, causing it to slide on the side wall of the slide rail 16. Simultaneously, the inner wall of the collar 15 slides on the outer wall of the transmission rod 2. The force applied to the collar 15 then moves the first support block 17 on the outer wall. Simultaneously, the movement of the first support block 17 moves the first hollow block 18 on the side wall. Then… During the movement of the first hollow block 18, the first connecting post 19 on the side wall is moved. At the same time, the movement of the first connecting post 19 will drive the second hollow block 20 to rotate the first connecting plate 23. Then, when the first connecting plate 23 rotates, it will drive the first rotating sleeve 21 and the second rotating sleeve 22 to rotate, randomly causing the barrier net 3 to gather. In summary, during the rotation of the barrier net 3, the first rotating sleeve 21 and the second rotating sleeve 22 will rotate, causing them to rotate on the outer wall of the second connecting post 26. Then, when the second connecting post 26 rotates, it will drive the third hollow block 25 to rotate, randomly causing the third hollow block 25 to rotate on the side wall of the cross connecting plate 24, achieving the effect of folding the barrier net 3.
Claims
1. A scale collection assembly for a heating pipe comprising a pipe (1), characterized in that: The inner wall of the pipe (1) is provided with a transmission rod (2), the outer wall of the transmission rod (2) is provided with an adjustment component, and the outer wall of the transmission rod (2) is provided with a limit component; The adjustment assembly includes a first connecting block (4) and a second connecting block (6). The side walls of the first connecting block (4) and the second connecting block (6) are fixedly connected to the outer wall of the transmission rod (2). The inner wall of the first connecting block (4) is fixedly connected to a first fixing post (9). The outer wall of the first fixing post (9) is provided with a chain (5). The inner wall of the chain (5) is provided with a second fixing post (10). The side wall of the second fixing post (10) is fixedly connected to the inner wall of the second connecting block (6). The inner wall of the second connecting block (6) is threadedly connected to a bolt (7). The outer wall of the bolt (7) is threadedly connected to the inside of the transmission rod (2). The transmission rod (2) has a hole (8) inside. The outer wall of the first fixing post (9) is threadedly connected to the inside of the transmission rod (2).
2. A scale collection assembly for a hydronic system as recited in claim 1, wherein: The limiting component includes a slide rail (16), the side wall of which is fixedly connected to the outer wall of the transmission rod (2), and a collar (15) is slidably connected to the outer wall of the slide rail (16), the inner wall of which is slidably connected to the outer wall of the transmission rod (2).
3. A scale collection assembly for a hydronic system as recited in claim 2, wherein: The collar (15) is fixedly connected to a first support column (13), and a button (11) is fixedly connected to one end of the first support column (13). The side wall of the button (11) is rotatably connected to the inside of the collar (15).
4. A scale collection assembly for a hydronic system as recited in claim 3, wherein: The button (11) has a locking post (12) fixedly connected to its side wall, and the outer wall of the locking post (12) is set inside the transmission rod (2).
5. A scale collection assembly for a hydronic system as recited in claim 4, wherein: The button (11) is provided with a first spring (14) on its side wall. One end of the first spring (14) is fixedly connected to the side wall of the button (11), and the other end of the first spring (14) is fixedly connected to the outer wall of the collar (15).
6. A scale collection assembly for a hydronic system as recited in claim 5, wherein: The outer wall of the collar (15) is fixedly connected to a first support block (17), the side wall of the first support block (17) is rotatably connected to a first hollow block (18), and the side wall of the first hollow block (18) is fixedly connected to a first connecting post (19).
7. A scale collection assembly for a hydronic system according to claim 6, wherein: The first connecting column (19) is fixedly connected to a second hollow block (20) at one end. The inner wall of the second hollow block (20) is rotatably connected to a first connecting plate (23). The outer wall of the first connecting plate (23) is rotatably connected to a second rotating sleeve (22) and a first rotating sleeve (21). The side walls of the first rotating sleeve (21) and the second rotating sleeve (22) are both fixedly connected to a barrier net (3).
8. A scale collection assembly for a hydronic system according to claim 7, wherein: One end of the transmission rod (2) is fixedly connected to a cross connecting plate (24), and the side wall of the cross connecting plate (24) is rotatably connected to a third hollow block (25). The side wall of the third hollow block (25) is fixedly connected to a second connecting column (26), and the outer wall of the second connecting column (26) is provided with another set of first rotating sleeve (21) and second rotating sleeve (22).