A building ventilation structure

Abstract

This application relates to a building ventilation structure and the field of building ventilation equipment. The structure includes a ventilation device comprising an exhaust duct, a drive assembly, and a dust removal assembly. The exhaust duct has a circular cross-section on its inner circumferential wall. The drive assembly includes a rotating component located within the exhaust duct and circumferentially connected to it along the inner wall. The dust removal assembly includes a rotating rod and a brush. The rotating rod is fixedly connected to the rotating component, and the brush is fixedly connected to the rotating rod, with the brush in contact with the inner wall of the exhaust duct. This application reduces dust adhesion to the inner wall of the duct, thereby reducing duct blockage or decreased exhaust efficiency.

Description

Technical Field

[0001] This application relates to the field of building ventilation equipment, and more particularly to a building ventilation structure. Background Technology

[0002] Buildings mainly include residences, factories, shopping malls, etc. During the construction of factories, it is necessary to consider whether a large amount of dust will be generated inside the factory. If a large amount of dust is generated, a ventilation structure needs to be added to the factory to exhaust the air inside. After the air inside the factory is exhausted, the exhaust dust can be filtered.

[0003] In related technologies, refer to Figure 1 The ventilation structure of the factory mainly includes duct 11 and fan 12. The fan 12 is installed inside the duct 11 or at the port of the duct 11 to accelerate the airflow in the duct 11.

[0004] Regarding the aforementioned technologies, when the dust content of the dust passing through the duct is high, the dust easily adheres to the inner wall of the duct. When too much dust adheres to the inner wall of the duct, it may cause duct blockage or reduce the duct's exhaust efficiency. Summary of the Invention

[0005] In order to reduce dust adhesion to the inner wall of the duct, thereby reducing the occurrence of duct blockage or reduced duct exhaust efficiency, this application provides a building ventilation structure.

[0006] The technical solution for a building ventilation structure provided in this application is as follows:

[0007] A building ventilation structure includes a ventilation device, the ventilation device comprising an exhaust duct, a drive assembly, and a dust removal assembly;

[0008] The cross-section of the inner circumferential wall of the exhaust pipe is circular;

[0009] The drive assembly includes a rotating component located inside the exhaust duct, and the rotating component is circumferentially connected to the exhaust duct along the inner wall of the exhaust duct.

[0010] The dust removal assembly includes a rotating rod and a brush. The rotating rod is fixedly connected to the rotating component, and the brush is fixedly connected to the rotating rod, with the brush in contact with the inner wall of the exhaust pipe.

[0011] By adopting the above technical solution, when cleaning the inner wall of the exhaust duct, the rotating component drives the rotating rod to rotate, and the brush will rotate with the rotating rod. During the rotation, the brush will clean the inner wall of the exhaust duct. By setting the rotating component to drive the brush to rotate, the inner wall of the exhaust duct can be cleaned, reducing the amount of dust adhering to the inner wall of the exhaust duct, ensuring smooth exhaust and reducing the occurrence of reduced ventilation efficiency of the exhaust duct.

[0012] Optionally, it also includes a flow-dispersing component located inside the exhaust duct. The flow-dispersing component includes a rotating ring and blades. The rotating ring is rotatably connected to the exhaust duct, and the rotating ring is perpendicular to the axial direction of the inner wall of the exhaust duct along the rotation axis of the exhaust duct. The blades are fixedly connected to the rotating ring.

[0013] By adopting the above technical solution, the rotating ring will drive the blades to rotate as it rotates along the exhaust pipe. The blades will disturb the airflow in the exhaust pipe, causing the airflow in the exhaust pipe to flow in different directions. Compared with the straight airflow, the airflow can collide with the inner wall of the exhaust pipe from different directions, thereby generating an impact force on the impurities adhering to the inner wall of the exhaust pipe and reducing the adhesion of impurities to the inner wall of the exhaust pipe.

[0014] Optionally, at least two ventilation devices are provided, and a section of one of the two exhaust pipes of the two ventilation devices is connected; the two exhaust pipes are arranged vertically, and the turbulence-disrupting component is located at the connection point of the two exhaust pipes.

[0015] By adopting the above technical solution, a turbulence-disrupting component is installed at the connection point of the two exhaust ducts, which can simultaneously turbulent the airflow in both exhaust ducts. Furthermore, since the two exhaust ducts are set vertically, when the airflow enters the other exhaust duct from one exhaust duct, the airflow will generate an irregular trajectory. At this time, in conjunction with the turbulence-disrupting effect of the turbulence-disrupting component, the airflow direction can be further disrupted, increasing the probability of airflow colliding with the inner wall of the exhaust duct and reducing the adhesion of impurities to the inner wall of the exhaust duct.

[0016] Optionally, it also includes a driving device, which is connected between the rotating ring and the rotating component, and the rotating ring drives the rotating component to rotate along the exhaust pipe through the driving device.

[0017] By adopting the above technical solution, the rotating ring drives the rotating component to rotate along the exhaust pipe through the driving device, which can realize the linkage between the rotating ring and the rotating component, and can drive the rotating component to rotate without adding other power sources.

[0018] Optionally, the drive device includes a first bevel gear and two transmission components;

[0019] The first bevel gear is coaxially and fixedly connected to the rotating ring;

[0020] The transmission assembly includes a second bevel gear, a first transmission shaft, a third bevel gear, a fourth bevel gear, a second transmission shaft, and a transmission gear;

[0021] The second bevel gear meshes with the first bevel gear;

[0022] The first drive shaft is rotatably connected to the exhaust pipe; one end of the first drive shaft is coaxially fixedly connected to the second bevel gear, and the other end is coaxially fixedly connected to the third bevel gear.

[0023] The fourth bevel gear meshes with the third bevel gear;

[0024] The second drive shaft is rotatably connected to the exhaust pipe, and the second drive shaft is arranged perpendicular to the first drive shaft; one end of the second drive shaft is coaxially fixedly connected to the fourth bevel gear, and the other end is coaxially fixedly connected to the drive gear;

[0025] The rotating component is a gear ring, and each of the transmission gears in the transmission assembly meshes with the rotating component in one of the drive assemblies.

[0026] By adopting the above technical solution, the rotating ring drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear meshing with it to rotate, the second bevel gear drives the third bevel gear to rotate through the first transmission shaft, the third bevel gear drives the fourth bevel gear to rotate through the second transmission shaft, the fourth bevel gear drives the transmission gear meshing with it to rotate, and the transmission gear drives the rotating component meshing with it to rotate. By setting the first bevel gear and two transmission components, no other power source is needed to drive the rotating components in the two exhaust pipes to rotate simultaneously.

[0027] Optionally, it also includes an acceleration fan located inside one of the exhaust pipes, with the outlet of the acceleration fan facing the blades to drive the blades to rotate with the rotating ring.

[0028] By adopting the above technical solution, when the airflow enters from one exhaust duct to another, it will drive the rotating ring to rotate by driving the blades. At the same time, the accelerator fan will accelerate the airflow and further provide power for the rotation of the rotating ring.

[0029] Optionally, the exhaust duct includes a turbulence section, the inner wall of which is wavy along the length of the exhaust duct.

[0030] By adopting the above technical solution, when the airflow passes through different positions of the turbulence section, it needs to face the increase or decrease of the inner diameter of the turbulence section. Therefore, the airflow will continuously diffuse outward or converge inward, which can continuously change the flow direction of the airflow, so that the airflow collides with the inner wall of the exhaust pipe at different angles, which can further reduce the adhesion of dust on the inner wall of the exhaust pipe.

[0031] Optionally, the brush is in contact with at least the inner wall of the turbulence section.

[0032] By adopting the above technical solution, the brush can be brought into contact with the inner wall of the turbulence section, thus cleaning the impurities adhering to the inner wall of the turbulence section. Furthermore, since the brush will further change the airflow direction in the turbulence section during its rotation, it can further reduce the adhesion of impurities to the inner wall of the turbulence section.

[0033] Optionally, the dust removal assembly further includes a dust scraper blade, which is fixedly connected to the rotating rod and contacts the inner wall of the exhaust pipe.

[0034] By adopting the above technical solution, the scraper blades come into contact with the inner wall of the exhaust duct, which can further improve the cleaning degree of the inner wall of the exhaust duct.

[0035] Optionally, the scraper blade is a flexible blade.

[0036] By adopting the above technical solution and making the scraper blade a flexible blade, the possibility of the scraper blade getting stuck during rotation along the inner wall of the exhaust duct can be reduced.

[0037] In summary, this application includes at least one of the following beneficial technical effects:

[0038] 1. By setting a rotating component to drive the brush to rotate, the inner wall of the exhaust pipe can be cleaned to reduce dust adhesion to the inner wall of the exhaust pipe, thus ensuring smooth exhaust and reducing the occurrence of reduced ventilation efficiency of the exhaust pipe.

[0039] 2. The rotating ring drives the rotating component to rotate along the exhaust pipe via a drive device, which enables the linkage between the rotating ring and the rotating component, and the rotating component can be driven to rotate without the need for additional power sources;

[0040] 3. By setting up an accelerator fan, the airflow is accelerated while further powering the rotation of the rotating ring. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of the air duct in the background art of this application;

[0042] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application;

[0043] Figure 3 This is a view of the exhaust pipe in a cut-open state in an embodiment of this application, intended to show the internal structure of the exhaust pipe;

[0044] Figure 4 This is a schematic diagram of the structure of the driving component and the dust removal component in the embodiments of this application;

[0045] Figure 5 This is a schematic diagram of the structure of the turbulence component in the embodiments of this application;

[0046] Figure 6 This is a schematic diagram of the transmission assembly in an embodiment of this application;

[0047] Figure 7 yes Figure 6 Enlarged view of part A in the middle.

[0048] Explanation of reference numerals in the attached drawings: 11. Duct; 12. Fan; 2. Exhaust duct; 21. Straight pipe section; 211. First mounting base; 212. Second mounting base; 22. Turbulence section; 3. Drive assembly; 31. Guide ring; 311. Rotating groove; 312. Clearing groove; 32. Rotating component; 4. Dust removal assembly; 41. Rotating rod; 42. Brush; 43. Dust scraper; 5. Turbulence assembly; 51. Support shaft; 52. Rotating ring; 53. Blade; 6. Accelerator fan; 7. First bevel gear; 8. Transmission assembly; 81. First transmission shaft; 82. Second transmission shaft; 83. Second bevel gear; 84. Third bevel gear; 85. Fourth bevel gear; 86. Transmission gear. Detailed Implementation

[0049] The following is in conjunction with the appendix Figure 2-7 This application will be described in further detail.

[0050] This application discloses a building ventilation structure. (Refer to...) Figure 2 , Figure 3 and Figure 4 The building ventilation structure includes a ventilation device, a turbulence component 5, and a drive device; at least two ventilation devices are provided, and in this embodiment, two ventilation devices are preferred. Each ventilation device includes an exhaust pipe 2 and a dust removal component 4. The turbulence component 5 is located inside the exhaust pipe 2 of one of the ventilation devices. The turbulence component 5 drives the dust removal component 4 to work through the drive device to clean the inner wall of the exhaust pipe 2.

[0051] Reference Figure 3 The exhaust pipe 2 has a circular cross-section perpendicular to its own axis. The exhaust pipe 2 includes a straight pipe section 21 and a turbulence section 22. The pipe wall of the straight pipe section 21 has a rectangular cross-section parallel to its own axis, and the pipe wall of the turbulence section 22 has a wavy cross-section parallel to its own axis.

[0052] Reference Figure 3 and Figure 4 The ventilation device also includes a drive assembly 3; the drive assembly 3 includes a guide ring 31 and a rotating component 32. The guide ring 31 is circular and is coaxially welded to the inner wall of the straight pipe section 21. The inner circumferential wall of the guide ring 31 is coaxially provided with an annular rotating groove 311. The rotating component 32 is a toothed ring. In this embodiment, the rotating component 32 is preferably an external toothed ring. The rotating component 32 is coaxially located in the rotating groove 311. The outer circumferential wall of the rotating component 32 is in contact with the inner wall of the rotating groove 311, and the rotating component 32 can rotate in the rotating groove 311. Here, in order to ensure that the rotating component 32 can rotate in the rotating groove 311, the tolerance between the major diameter of the rotating component 32 and the diameter of the rotating groove 311 is a clearance fit, so as to avoid the rotating component 32 from getting stuck in the rotating groove 311 and also ensure that the rotating component 32 can rotate in the rotating groove 311.

[0053] Reference Figure 3 and Figure 4 In this embodiment, three cleaning components 4 are provided, and the three cleaning components 4 are evenly distributed along the circumference of the rotating member 32. The cleaning component 4 includes a rotating rod 41, a brush 42, and a scraper 43. The rotating rod 41 is arranged parallel to the axis of the straight pipe section 21. One end of the rotating rod 41 is welded to the rotating member 32, and the other end extends into the turbulence section 22. The brush 42 is glued to the rotating member 32, and the brush 42 is at least in contact with the inner wall of the turbulence section 22. That is, the brush 42 can also be arranged inside the straight pipe section 21 to contact the inner wall of the straight pipe section 21. The scraper 43 is a flexible sheet. The material of the scraper 43 is preferably a flexible material such as rubber or silicone. In this embodiment, the material of the scraper 43 is preferably rubber, that is, the scraper 43 is a rubber sheet. One end of the scraper 43 is fixedly glued to the rotating rod 41, and the other end contacts the inner wall of the turbulence section 22 to scrape away impurities on the inner wall of the turbulence section 22.

[0054] Reference Figure 3 Two exhaust pipes 2 are vertically arranged. The end wall of the straight pipe section 21 of one exhaust pipe 2 is welded to the side wall of the straight pipe section 21 of the other exhaust pipe 2. The two exhaust pipes 2 are connected. The flow-dispersing component 5 is located inside one of the exhaust pipes 2 and close to the port of the straight pipe section 21 of the other exhaust pipe 2. To facilitate the distinction between the two straight pipe sections 21, the straight pipe section 21 without the flow-dispersing component 5 is named the first straight pipe section 21, and the straight pipe section 21 with the flow-dispersing component 5 is named the second straight pipe section 21.

[0055] Reference Figure 3 and Figure 5The turbulence assembly 5 includes a support shaft 51, a rotating ring 52, and blades 53. The support shaft 51 is welded to the inner wall of the exhaust pipe 2, and the axis of the support shaft 51 is perpendicular to the axes of the two exhaust pipes 2. The rotating ring 52 is coaxially rotatably connected to the outer peripheral wall of the support shaft 51 through a bearing, so that the rotation axis of the rotating ring 52 coincides with the axis of the support shaft 51. The blades 53 are welded to the outer peripheral wall of the rotating ring 52, and there are multiple blades 53, which are evenly distributed around the circumference of the rotating ring 52.

[0056] Reference Figure 5 In order to accelerate the rotation of the rotating ring 52, an acceleration fan 6 is fixedly connected to the inner wall of the first straight pipe section 21 by screws. The air outlet of the acceleration fan 6 faces the blade 53, so that the blade 53 is driven to rotate by the acceleration fan 6.

[0057] Reference Figure 5 , Figure 6 and Figure 7 The driving device includes a first bevel gear 7 and two transmission components 8. The first bevel gear 7 is coaxially welded to the end wall of the rotating ring 52 so as to rotate synchronously with the rotating ring 52. The transmission components 8 include a first transmission shaft 81, a second transmission shaft 82, a second bevel gear 83, a third bevel gear 84, a fourth bevel gear 85 and a transmission gear 86. In this embodiment, all bevel gears are bevel gears with a helix angle of 45° so as to achieve a 90° change in transmission direction when the two bevel gears mesh.

[0058] Reference Figure 4 , Figure 6 and Figure 7 A first mounting base 211 and a second mounting base 212 are welded to the inner wall of the second straight pipe section 21. A first drive shaft 81 is rotatably connected to the first mounting base 211, and a second drive shaft 82 is rotatably connected to the second mounting base 212. One end of the first drive shaft 81 is coaxially welded to the second bevel gear 83, and the other end is coaxially welded to the third bevel gear 84. One end of the second drive shaft 82 is coaxially welded to the fourth bevel gear 85, and the other end is coaxially welded to the drive gear 86. The second bevel gear 83 meshes with the first bevel gear 7, and the third bevel gear 84 meshes with the fourth bevel gear 85. A clearance groove 312 is provided in the guide ring 31, which communicates with the rotation groove 311. The drive gear 86 is located in the clearance groove 312 and meshes with the rotating component 32. The second drive shaft 82 passes through the guide ring 31 and can rotate along the guide ring 31, so that the second drive shaft 82 drives the drive gear 86 to rotate, thereby driving the rotating component 32 to rotate.

[0059] Reference Figure 5 , Figure 6 and Figure 7To facilitate the distinction between the two transmission components 8, the transmission component 8 used to drive the rotating part 32 inside the first straight pipe section 21 is designated as the first transmission component 8, and the transmission component 8 used to drive the rotating part 32 inside the second straight pipe section 21 is designated as the second transmission component 8. The first transmission shaft 81 in the first transmission component 8 is parallel to the axis of the second straight pipe section 21, and the second transmission shaft 82 in the first transmission component 8 is parallel to the axis of the first straight pipe section 21. Similarly, the first transmission shaft 81 in the second transmission component 8 is parallel to the axis of the first straight pipe section 21, and the second transmission shaft 82 in the second transmission component 8 is parallel to the axis of the second straight pipe section 21, thereby completing the force transmission operation.

[0060] The implementation principle of a building ventilation structure in this application embodiment is as follows: airflow is introduced into the exhaust pipe 2 including the first straight pipe section 21 and discharged from the exhaust pipe 2 including the second straight pipe section 21. The airflow will drive the blades 53 to rotate, and the blades 53 will drive the rotating ring 52 to rotate, which will cause a certain disturbance to the airflow in the second straight pipe section 21.

[0061] After the airflow enters the turbulence section 22, because the pipe wall of the turbulence section 22 is wavy, the airflow in the turbulence section 22 will converge towards the inside of the turbulence section 22 when it flows from the larger inner diameter to the smaller inner diameter; when the airflow in the turbulence section 22 flows from the smaller inner diameter to the larger inner diameter, it will diffuse towards the outside of the turbulence section 22. This makes the airflow in the turbulence section 22 constantly fluctuate, rather than flowing in a straight line. Therefore, the airflow will collide with the inner wall of the turbulence section 22 at different angles from different directions, so as to blow off the impurities adhering to the inner wall of the exhaust pipe 2 and reduce the amount of impurities adhering to the inner wall of the exhaust pipe 2.

[0062] The accelerator fan 6 further drives the blades 53 to increase the rotation speed of the rotating ring 52. The first bevel gear 7 fixed on the rotating ring 52 will rotate with the rotating ring 52. The second bevel gear 83, which meshes with the first bevel gear 7, will rotate with the first bevel gear 7. The second bevel gear 83 drives the third bevel gear 84 and the fourth bevel gear 85, which meshes with the third bevel gear 84, to rotate through the first transmission shaft 81. The fourth bevel gear 85 drives the transmission gear 86 and the rotating component 32 to rotate through the second transmission shaft 82. The dust removal assembly 4 will then rotate with the rotating component 32. The rotating component 32 drives multiple rotating rods 41 to rotate. The brush 42 and the flexible scraper blade 43, which are fixedly connected to the rotating rods 41, will rotate synchronously with the rotating rods 41. The brush 42 and the scraper blade 43 will perform a double scraping operation on the inner wall of the exhaust pipe 2 to clean the inner wall of the exhaust pipe 2 more thoroughly.

[0063] In this application, the presence of the accelerator fan 6 enables the airflow in the exhaust pipe 2, which includes the first straight pipe section 21, to accelerate into the exhaust pipe 2, which includes the second straight pipe section 21. At the same time, it also accelerates the turbulence of the turbulence component 5. That is, the accelerator fan 6 can accelerate the rotation of the rotating ring 52, and the rotating ring 52 drives the dust removal component 4 to move through the transmission component 8. Therefore, the presence of the accelerator fan 6 can increase the cleaning frequency of the dust removal component 4. In this application, the accelerator fan 6, the turbulence component 5, and the dust removal component 4 can all exist as structures that turbulent the airflow. Among them, the dust removal component 4 directly acts on the inner wall of the exhaust pipe 2 to clean impurities. Through the synergy of multiple parties, the cleanliness of the inner wall of the exhaust pipe 2 can be effectively improved.

[0064] 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 building ventilation structure, characterized in that, It includes a ventilation device, which includes an exhaust pipe (2), a drive assembly (3), and a dust removal assembly (4); The cross-section of the inner circumferential wall of the exhaust pipe (2) is circular; The drive assembly (3) includes a rotating component (32), which is located inside the exhaust pipe (2) and is circumferentially connected to the exhaust pipe (2) along the inner wall of the exhaust pipe (2). The dust removal assembly (4) includes a rotating rod (41) and a brush (42). The rotating rod (41) is fixedly connected to the rotating component (32), and the brush (42) is fixedly connected to the rotating rod (41). The brush (42) is in contact with the inner wall of the exhaust pipe (2). The exhaust pipe (2) includes a turbulence section (22), the inner wall of which is wavy along the length of the exhaust pipe (2).

2. The building ventilation structure according to claim 1, characterized in that, It also includes a turbulence-disrupting component (5), which is located inside the exhaust pipe (2). The turbulence-disrupting component (5) includes a rotating ring (52) and blades (53). The rotating ring (52) is rotatably connected to the exhaust pipe (2), and the rotating ring (52) is perpendicular to the axial direction of the inner wall of the exhaust pipe (2) along the rotation axis of the exhaust pipe (2). The blades (53) are fixedly connected to the rotating ring (52).

3. A building ventilation structure according to claim 2, characterized in that, The ventilation device is provided in at least two, and one section of the two exhaust pipes (2) of the two ventilation devices is connected; the two exhaust pipes (2) are arranged vertically, and the turbulence component (5) is located at the connection point of the two exhaust pipes (2).

4. A building ventilation structure according to claim 3, characterized in that, It also includes a driving device, which is connected between the rotating ring (52) and the rotating component (32). The rotating ring (52) drives the rotating component (32) to rotate along the exhaust pipe (2) through the driving device.

5. A building ventilation structure according to claim 4, characterized in that, The drive device includes a first bevel gear (7) and two transmission components (8); The first bevel gear (7) is coaxially fixedly connected to the rotating ring (52); The transmission assembly (8) includes a second bevel gear (83), a first transmission shaft (81), a third bevel gear (84), a fourth bevel gear (85), a second transmission shaft (82), and a transmission gear (86); The second bevel gear (83) meshes with the first bevel gear (7); The first drive shaft (81) is rotatably connected to the exhaust pipe (2); one end of the first drive shaft (81) is coaxially fixedly connected to the second bevel gear (83), and the other end is coaxially fixedly connected to the third bevel gear (84); The fourth bevel gear (85) meshes with the third bevel gear (84); The second drive shaft (82) is rotatably connected to the exhaust pipe (2), and the second drive shaft (82) is arranged perpendicular to the first drive shaft (81); one end of the second drive shaft (82) is coaxially fixedly connected to the fourth bevel gear (85), and the other end is coaxially fixedly connected to the drive gear (86); The rotating component (32) is a gear ring, and the transmission gear (86) in each of the transmission components (8) meshes with the rotating component (32) in one of the drive components (3).

6. A building ventilation structure according to claim 5, characterized in that, It also includes an acceleration fan (6), which is located in one of the exhaust pipes (2) and the outlet of the acceleration fan (6) faces the blade (53) to drive the blade (53) to rotate with the rotating ring (52).

7. A building ventilation structure according to claim 6, characterized in that, The brush (42) is in contact with at least the inner wall of the turbulence section (22).

8. A building ventilation structure according to claim 7, characterized in that, The dust removal assembly (4) also includes a dust scraper (43), which is fixedly connected to the rotating rod (41) and contacts the inner wall of the exhaust pipe (2).

9. A building ventilation structure according to claim 8, characterized in that, The scraper blade (43) is a flexible blade.

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