Air circulation structure of efficient purification air handling unit

Abstract

The utility model discloses an efficient purification air circulation structure of an air handling unit, which relates to the technical field of air purification of the air handling unit and comprises a circulation pipe, a mounting groove is arranged in the middle of the circulation pipe, a filtering mechanism is movably mounted in the mounting groove, and a covering mechanism is arranged on the outer side of the mounting groove. According to the device, the anti-blocking mechanism is arranged to be matched with the collecting mechanism, when the filter screen of the circulating pipe needs to be cleaned, a driving motor is started to drive a rotating shaft, a worm, a worm gear and a rotating disc to rotate, a brush plate is driven to be attached to the filter screen to do annular displacement, efficient brushing and cleaning are achieved, and dust and impurities fall to the collecting frame through a guide frame and are received by a collecting drawer below; and if the brush plate needs to be replaced, the mounting screw rod is twisted to remove the mounting block, and the design ensures efficient operation of the equipment, is convenient to disassemble, assemble and maintain, and is high in practicability.

Description

Technical Field

[0001] This utility model belongs to the field of air purification technology for air conditioning units, and specifically relates to an air circulation structure for a high-efficiency air purification unit. Background Technology

[0002] In modern building environments, people's requirements for indoor air quality are increasing. As a key link in ensuring indoor air quality, the importance of air conditioning unit purification is self-evident. Air conditioning unit purification aims to filter and purify air by using various purification equipment and technologies equipped inside the unit, thereby providing a clean and healthy air environment for indoor spaces. For example, the purification air supply box and air conditioning unit disclosed in Chinese Patent No. CN208431903U, by setting up a box and a fan, allows outdoor air to enter the box through the air inlet, undergo primary and secondary filtration, and then be delivered into the room through the air outlet. To a certain extent, this solves the technical problem that traditional air supply boxes cannot deliver fresh air with the required cleanliness to the room, and provides an effective way to improve indoor air quality.

[0003] However, upon closer examination of practical applications, it was discovered that these devices have significant shortcomings in filter cleaning. During continuous operation, the filter constantly intercepts dust and impurities in the air. Over time, a large amount of dust and impurities accumulate on the outer surface of the filter, gradually clogging the filter pores. When too much dust accumulates on the filter, its filtration efficiency will decrease significantly. This not only seriously affects the air circulation within the air conditioning unit and hinders the smooth delivery of fresh air, but also negatively impacts the cooling and heating performance of the entire air conditioning system in the long run, failing to meet the indoor demand for suitable temperature and good air quality. Therefore, to further optimize the purification effect of the air conditioning unit and improve its operational stability and reliability, it is urgent to innovate and improve the design to address the lack of a filter cleaning structure in existing technologies, ensuring the continuous and efficient operation of the air conditioning unit and creating a more comfortable and healthy indoor environment for users. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide an efficient air circulation structure for air conditioning units, so as to solve the problem that the lack of filter cleaning function during the application of the prior art leads to easy clogging of the filter and thus affects the subsequent operation of the air conditioning.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A high-efficiency air purification air conditioning unit air circulation structure includes a circulation pipe, an installation groove in the middle of the circulation pipe, a filter mechanism movably installed inside the installation groove, a covering mechanism on the outside of the installation groove, the covering mechanism covering the outside of the filter mechanism, and a collection mechanism fixedly installed at the bottom of the circulation pipe, the top of the collection mechanism being connected to the inside of the circulation pipe.

[0007] The filtration mechanism includes a filter frame, which is slidably connected to the inside of the mounting groove. A filter screen is fixedly installed on one side of the inside of the filter frame. An internal groove is opened inside the filter frame, and an activated carbon filter element is slidably connected inside the internal groove. An anti-clogging component is fixedly installed on the outside of the filter screen, and the cleaning end of the anti-clogging component is in contact with the outer surface of the filter screen.

[0008] As a preferred technical solution, the anti-clogging component includes a drive motor, a rotating shaft, and a turntable. The drive motor is fixedly connected to the top of the filter frame, the rotating shaft is rotatably connected to the inside of the filter frame, and the turntable is rotatably connected to the outer center of the filter screen. The outer side of the turntable has grooves arranged in a ring at equal intervals. An installation block is inserted into the inside of the groove. A brush plate is fixedly connected to the outer side of the installation block. The bristles of the brush plate are in close contact with the outer side of the filter screen. An installation screw is threadedly connected to the outer side of the installation block. The installation screw is threadedly connected to the turntable. A transmission component is provided on the outer side of the turntable.

[0009] As a preferred technical solution, the transmission assembly includes a worm gear and a worm. The worm gear is fixedly installed on the front side of the turntable, and the worm is fixedly connected to the middle of the outer surface of the rotating shaft. The worm and the worm gear are connected in a transmission manner.

[0010] As a preferred technical solution, the covering mechanism includes a sealing cover and a limiting component. The sealing cover covers the inside of the mounting groove. Both sides of the bottom of the sealing cover are fixedly connected to a card plate. A card slot is opened on one side of the lower end of the card plate. The limiting component is disposed on both sides of the circulation pipe. The end of the limiting component is inserted into the inside of the card slot.

[0011] As a preferred technical solution, the limiting component includes a sliding groove, which is opened in the middle of both sides of the circulation tube. A slider is slidably connected inside the sliding groove. A locking block is fixedly connected to the end of the slider. The end of the locking block is inserted into the slot. A magnetic block is fixedly connected inside the locking block and the locking plate. The locking block and the locking plate are magnetically attracted to each other through the magnetic block. A square groove is opened on the outer side of the slider. Anti-slip textures are evenly spaced inside the square groove.

[0012] As a preferred technical solution, the collection mechanism includes a guide frame, which is fixedly connected to the bottom of the circulation pipe. A collection frame is fixedly connected to the bottom of the guide frame. A collection drawer is slidably connected inside the collection frame. A cover plate is fixedly connected to the outside of the collection drawer. Limiting screws are threadedly connected to both sides of the top of the cover plate. The ends of the limiting screws penetrate the cover plate and are threadedly connected to the collection frame.

[0013] As a preferred technical solution, mounting frame plates are fixedly installed on both sides of the circulation pipe, and mounting holes are provided at the outer corners of the mounting frame plates, and the mounting holes are countersunk holes.

[0014] In summary, the present invention has the following main advantages:

[0015] First, this device uses a combination of a filtration mechanism and a covering mechanism, which can effectively improve ease of use and maintenance efficiency. During installation, the filter frame is accurately placed into the installation slot, the sealing cover is put on, and the locking plate is inserted into both sides of the circulation pipe. The sliding block is pushed to make the locking block embed into the square slot, and the magnetic block is used to attract and stabilize it, thus completing the locking of the sealing cover onto the filter frame, achieving stable installation of the filter frame and the built-in activated carbon filter element. During disassembly, the operation is reversed. Push the sliding block and move the sealing plate up to easily pull out the filter frame and remove the filter element. The quick and convenient disassembly and assembly design greatly facilitates device maintenance.

[0016] Secondly, this device, through the combination of an anti-clogging mechanism and a collection mechanism, allows for efficient cleaning of the circulating pipe filter screen when cleaning is required. The drive motor activates the rotating shaft and worm gear, causing the worm wheel and turntable to rotate. This drives the brush plate to move in a circular motion against the filter screen, effectively cleaning it. Dust and impurities fall through the guide frame to the collection frame, where they are collected by the lower collection drawer. For cleaning, simply twist the limit screw to pull out the cover and remove the drawer. To replace the brush plate, simply twist the mounting screw to remove the mounting block. This design ensures efficient operation and facilitates disassembly, assembly, and maintenance, making it highly practical. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a top view of the disassembled structure of this utility model;

[0019] Figure 3 This is a top-view structural diagram of the disassembled state of this utility model;

[0020] Figure 4 This is a schematic diagram of the filter mechanism structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the anti-clogging component structure of this utility model.

[0022] Reference numerals: 1. Circulation pipe; 2. Filtration mechanism; 21. Filter frame; 22. Filter screen; 23. Internal groove; 24. Activated carbon filter element; 25. Anti-clogging component; 251. Drive motor; 252. Rotating shaft; 253. Turntable; 254. Groove body; 255. Mounting block; 256. Brush plate; 257. Mounting screw; 258. Transmission component; 2581. Worm gear; 2582. Worm wheel; 3. Covering mechanism; 31. Sealing cover; 32. Limiting component; 321. Slide groove; 322. Slider; 323. Locking block; 324. Square groove; 325. Anti-slip texture; 33. Locking plate; 34. Locking slot; 4. Mounting groove; 5. Collection mechanism; 51. Guide frame; 52. Collection frame; 53. Collection drawer; 54. Cover plate; 55. Limiting screw; 56. Mounting frame plate; 57. Mounting hole. Detailed Implementation

[0023] Example

[0024] refer to Figures 1 to 5 The air circulation structure of a high-efficiency air-conditioning unit in this embodiment includes a circulation pipe 1, an installation groove 4 in the middle of the circulation pipe 1, a filter mechanism 2 movably installed inside the installation groove 4, a covering mechanism 3 on the outside of the installation groove 4, the covering mechanism 3 covering the outside of the filter mechanism 2, and a collection mechanism 5 fixedly installed at the bottom of the circulation pipe 1, the top of the collection mechanism 5 being connected to the inside of the circulation pipe 1.

[0025] The filtration mechanism 2 includes a filter frame 21, which is slidably connected to the inside of the mounting groove 4. A filter screen 22 is fixedly installed on one side of the inside of the filter frame 21. An internal groove 23 is provided inside the filter frame 21, and an activated carbon filter element 24 is slidably connected inside the internal groove 23. An anti-clogging component 25 is fixedly installed on the outside of the filter screen 22, and the cleaning end of the anti-clogging component 25 is in close contact with the outer surface of the filter screen 22. Air flows in the circulation pipe 1. When it flows through the mounting groove 4 in the middle of the circulation pipe 1, it first enters the filtration mechanism 2. The filter frame 21 in the filtration mechanism 2 is slidably installed in the mounting groove 4. The filter screen 22 on one side of the frame can intercept larger particulate impurities in the air. At the same time, the activated carbon filter element 24 in the internal groove 23 adsorbs and purifies the air. In addition to removing odors and harmful gases, the filter screen 22 can be prone to accumulating impurities during use, affecting ventilation efficiency. At this time, the anti-clogging component 25 comes into play. Since the cleaning end of the anti-clogging component 25 is attached to the outer surface of the filter screen 22, it can clean the filter screen and prevent impurities from clogging it. The covering mechanism 3 covers the outside of the filter mechanism 2, which plays a role in stabilization and protection. The collection mechanism 5 is fixed at the bottom of the circulation pipe 1, and its top is connected to the inside of the circulation pipe 1. The dust and impurities cleaned by the anti-clogging component 25 will fall into the collection mechanism 5 under the action of gravity, thereby realizing the collection of dust and impurities and ensuring that the entire air circulation structure continues to operate efficiently, providing purified clean air to the air conditioning unit.

[0026] refer to Figures 1-5The anti-clogging component 25 includes a drive motor 251, a rotating shaft 252, and a turntable 253. The drive motor 251 is fixedly connected to the top of the filter frame 21. The rotating shaft 252 is rotatably connected to the inside of the filter frame 21. The turntable 253 is rotatably connected to the outer center of the filter screen 22. The outer side of the turntable 253 has grooves 254 arranged in a ring at equal intervals. An installation block 255 is inserted into the inside of the groove 254. A brush plate 256 is fixedly connected to the outer side of the installation block 255. The bristles of the brush plate 256 are in close contact with the outer side of the filter screen 22. An installation screw 257 is threadedly connected to the outer side of the installation block 255. 257 and turntable 253 are threaded together. A transmission assembly 258 is provided on the outer side of turntable 253. The transmission assembly 258 includes a worm gear 2582 and a worm 2581. The worm gear 2582 is fixedly installed on the front of turntable 253, and the worm 2581 is fixedly connected to the middle of the outer surface of rotating shaft 252. The worm 2581 and worm gear 2582 are connected in a transmission manner. When it is necessary to clean the filter screen 22 to prevent clogging, the drive motor 251, fixedly connected to the top of filter frame 21, is started. After the drive motor 251 runs, it drives the rotating shaft 252 connected to it to rotate inside filter frame 21. During the rotation of the rotating shaft 252... In the process, the worm gear 2581 fixedly connected to it rotates synchronously. Since the worm gear 2581 and the worm wheel 2582 are connected by mutual transmission, and the worm wheel 2582 is fixedly installed on the front of the turntable 253, the rotation of the worm gear 2581 will drive the worm wheel 2582 to rotate, thereby driving the turntable 253 to rotate in the middle of the outer side of the filter screen 22. When the turntable 253 rotates, the mounting blocks 255 inserted in the grooves 254 arranged in a ring at equal intervals on its outer side will rotate with the turntable 253. The brush plate 256 fixedly connected to the outer side of the mounting block 255 will also make a circular motion. Because the bristles of the brush plate 256 are in contact with the filter screen... The outer side of the filter screen 22 is tightly fitted. As the turntable 253 drives the brush plate 256 to rotate continuously, the bristles of the brush plate 256 continuously brush the outer side of the filter screen 22, cleaning the dust and impurities accumulated on the filter screen 22. If the brush plate 256 needs to be disassembled and replaced, the mounting screw 257, which is threaded to the outer side of the mounting block 255 and threaded to the turntable 253, can be twisted to move the mounting screw 257 outward, thereby removing the mounting block 255 and realizing the disassembly and replacement of the brush plate 256. This ensures that the anti-clogging component 25 can continuously and effectively clean the filter screen 22 and ensure the efficient operation of the air circulation structure.

[0027] refer to Figures 1-4The covering mechanism 3 includes a sealing cover 31 and a limiting component 32. The sealing cover 31 covers the inside of the mounting groove 4. A retaining plate 33 is fixedly connected to both sides of the bottom of the sealing cover 31. A retaining groove 34 is formed on one side of the lower end of the retaining plate 33. The limiting component 32 is disposed on both sides of the circulation pipe 1. The end of the limiting component 32 is inserted into the inside of the retaining groove 34. The limiting component 32 includes a sliding groove 321, which is formed in the middle of both sides of the circulation pipe 1. A slider 322 is slidably connected inside the sliding groove 321. The end of the slider 322 is fixedly connected to the sliding groove 321. A locking block 323 is fixedly connected, with its end inserted into the slot 34. Magnets are fixedly connected to both the inside of the locking block 323 and the slot 33. The locking block 323 and the slot 33 are magnetically attracted to each other via the magnets. A square groove 324 is provided on the outer side of the slider 322, and anti-slip textures 325 are evenly spaced inside the square groove 324. When the covering mechanism 3 needs to be installed to protect and fix the filter mechanism 2, the sealing cover 31 is placed inside the mounting groove 4. At this time, the slots 33 fixedly connected to both sides of the bottom of the sealing cover 31 are simultaneously activated. Upon reaching the appropriate position, the limiting components 32 on both sides of the circulation tube 1 begin to function. The sliding grooves 321 in the limiting components 32 are located in the middle of both sides of the circulation tube 1. The slider 322, slidably connected inside the sliding grooves 321, can move along the grooves 321. By pushing the slider 322, the locking block 323, fixedly connected to the end of the slider 322, moves towards the locking groove 34 until the end of the locking block 323 is precisely inserted into the locking groove 34 on one side of the lower end of the locking plate 33. Since both the inside of the locking block 323 and the inside of the locking plate 33 are fixedly connected... With the presence of magnetic blocks, the card block 323 and the card plate 33 are tightly fitted together under the mutual magnetic attraction of the magnetic blocks, which further enhances the stability of the connection. In addition, during the sliding of the slider 322, the friction can be increased by gripping the square groove 324 on the outside of the slider 322. The anti-slip texture 325 set at equal intervals inside the square groove 324 facilitates operation and makes the slider 322 move more smoothly and controllably, thereby completing the installation and fixing of the sealing cover 31, achieving effective coverage and protection of the filter mechanism 2, and ensuring the normal operation of the entire air circulation structure.

[0028] refer to Figures 1-3The collection mechanism 5 includes a guide frame 51, which is fixedly connected to the bottom of the circulation pipe 1. A collection frame 52 is fixedly connected to the bottom of the guide frame 51. A collection drawer 53 is slidably connected inside the collection frame 52. A cover plate 54 is fixedly connected to the outside of the collection drawer 53. Limiting screws 55 are threadedly connected to both sides of the top of the cover plate 54. The ends of the limiting screws 55 pass through the cover plate 54 and the collection frame 52 and are threadedly connected. Mounting frame plates 56 are fixedly installed on both sides of the circulation pipe 1. Mounting holes 57 are provided at the outer corners of the mounting frame plates 56. The mounting holes 57 are countersunk holes. When the air circulation structure of the air conditioning unit is running, the dust and impurities cleaned from the filter mechanism 2 slide down through the guide frame 51 fixedly connected to the bottom of the circulation pipe 1 under the action of gravity. The guide frame 51 guides the dust and impurities to move in a directional direction, so that they fall into the collection frame 52 fixedly connected below. A sliding collection drawer 53 is provided to collect dust and impurities. When dust accumulates in the collection drawer 53 to a certain extent and needs to be cleaned, first loosen the limiting screws 55 threaded on both sides of the top of the cover plate 54. The end of the limiting screw 55 passes through the cover plate 54 and is threaded to the collection frame 52. After loosening, the cover plate 54 on the outside of the collection drawer 53 can be pulled to pull the collection drawer 53 out of the collection frame 52 for easy cleaning of dust and impurities. After cleaning, the collection drawer 53 is pushed back to the original position of the collection frame 52, and the limiting screws 55 are tightened for fixation. The mounting frame plates 56 fixedly installed on both sides of the circulation pipe 1 have countersunk mounting holes 57 at their outer corners. These holes can be used to securely connect the entire collection mechanism 5 and the air circulation structure to external equipment or mounting frames using bolts or other connectors, ensuring that the collection mechanism 5 is fixed in position during operation and ensuring the stable operation of dust and impurity collection.

[0029] Operating Principle and Advantages: This device, through the coordinated operation of the filter mechanism 2 and the covering mechanism 3, effectively improves the convenience of use and the efficiency of maintenance during operation. During installation, the operation process is standardized and simple: First, accurately place the filter frame 21 inside the mounting groove 4. Then, cover the top of the mounting groove 4 with the sealing cover 31. During this process, insert the retaining plate 33 into both sides of the circulation pipe 1. Next, push the slider 322 in the sliding groove 321 to move. The displacement of the slider 322 causes the retaining block 323 to insert into the square groove 324. Because the retaining block 323 and the square groove 324 fit together, and with the adsorption of the magnetic block, the retaining block 323 can be stably positioned in the square groove 324, thereby allowing the sealing cover 31 to be firmly installed in the filter frame 21. After the top sealing cover 31 is installed, it forms a snap-fit ​​fixation on the filter frame 21, thereby stably installing the filter frame 21 and the activated carbon filter element 24 in the internal groove 23. When it is necessary to disassemble and install the filter frame 21 and the activated carbon filter element 24 in the internal groove 23, simply push the slider 322 to slide outward in the slide groove 321, and then push the sealing plate upward. The upward movement of the sealing plate causes the filter frame 21 to be pulled out from the installation groove 4, thereby completing the removal of the filter frame 21. After removing the filter frame 21, the activated carbon filter element 24 in the internal groove 23 can be easily taken out. This design enables the filter frame 21 and the activated carbon filter element 24 inside to be quickly and conveniently disassembled and installed in actual use, which greatly facilitates the use and maintenance of the device.

[0030] This device, through the cooperation of the anti-clogging component 25 and the collection mechanism 5, demonstrates excellent performance in actual operation. When the filter screen 22 inside the circulation pipe 1 needs cleaning, the drive motor 251 is started. The drive motor 251 rotates, driving the rotating shaft 252 to rotate, which in turn causes the worm gear 2581 to rotate. Since the worm gear 2581 and the worm wheel 2582 are connected by mutual transmission, the rotation of the worm gear 2581 drives the worm wheel 2582 to rotate synchronously. The rotation of the worm wheel 2582 drives the turntable 253 to rotate. The rotation of the turntable 253 causes the brush plates 256 on its outer side to make annular displacement. During the displacement, the brush plates 256 are always in close contact with the outer side of the filter screen 22. As the turntable 253 drives the brush plates 256 to continue rotating, the filter screen 22 can be efficiently brushed and cleaned. The dust and impurities generated during the cleaning process are removed under the action of gravity. The dust falls and is collected by the guide frame 51 and guided into the collection frame 52. The collection drawer 53 set below the collection frame 52 can effectively hold the dust. After the dust is collected, the cover plate 54 can be pulled out by turning the limit screw 55 to remove the collection drawer 53 for timely cleaning. In addition, if it is necessary to disassemble and install the brush plate 256 on the turntable 253 during the use of the device, the mounting screw 257 threaded to the turntable 253 can be turned to move it outward, thereby removing the mounting block 255 in the groove 254, and thus realizing the removal and replacement of the brush plate 256. In summary, this device not only has excellent cleaning function and can ensure the continuous and efficient operation of the equipment, but also has a structural design that facilitates quick disassembly, replacement and maintenance operations, showing strong practicality and having wide application value.

Claims

1. A high-efficiency air purification unit's air circulation structure, comprising a circulation pipe (1), characterized in that: The circulation pipe (1) has an installation groove (4) in the middle, and a filter mechanism (2) is movably installed inside the installation groove (4). A covering mechanism (3) is provided on the outside of the installation groove (4), and the covering mechanism (3) covers the outside of the filter mechanism (2). A collection mechanism (5) is fixedly installed at the bottom of the circulation pipe (1), and the top of the collection mechanism (5) is connected to the inside of the circulation pipe (1). The filtration mechanism (2) includes a filter frame (21), which is slidably connected to the inside of the mounting groove (4). A filter screen (22) is fixedly installed on one side of the inside of the filter frame (21). An internal groove (23) is opened inside the filter frame (21). An activated carbon filter element (24) is slidably connected inside the internal groove (23). An anti-clogging component (25) is fixedly installed on the outside of the filter screen (22). The cleaning end of the anti-clogging component (25) is attached to the outer surface of the filter screen (22).

2. The air circulation structure of a high-efficiency purification air conditioning unit according to claim 1, characterized in that: The anti-clogging component (25) includes a drive motor (251), a rotating shaft (252), and a turntable (253). The drive motor (251) is fixedly connected to the top of the filter frame (21). The rotating shaft (252) is rotatably connected to the inside of the filter frame (21). The turntable (253) is rotatably connected to the middle of the outer side of the filter screen (22). The turntable (253) has grooves (254) arranged in a ring at equal intervals on its outer side. An installation block (255) is inserted into the inside of the groove (254). A brush plate (256) is fixedly connected to the outer side of the installation block (255). The bristles of the brush plate (256) are in close contact with the outer side of the filter screen (22). An installation screw (257) is threadedly connected to the outer side of the installation block (255). The installation screw (257) is threadedly connected to the turntable (253). A transmission component (258) is provided on the outer side of the turntable (253).

3. The air circulation structure of a high-efficiency purification air conditioning unit according to claim 2, characterized in that: The transmission assembly (258) includes a worm gear (2582) and a worm (2581). The worm gear (2582) is fixedly installed on the front of the turntable (253), and the worm (2581) is fixedly connected to the middle of the outer surface of the rotating shaft (252). The worm (2581) and the worm gear (2582) are connected in a transmission manner.

4. The air circulation structure of a high-efficiency purification air conditioning unit according to claim 1, characterized in that: The covering mechanism (3) includes a sealing cover (31) and a limiting component (32). The sealing cover (31) covers the inside of the mounting groove (4). The bottom two sides of the sealing cover (31) are fixedly connected with a card plate (33). A card slot (34) is opened on one side of the lower end of the card plate (33). The limiting component (32) is set on both sides of the circulation pipe (1). The end of the limiting component (32) is inserted into the inside of the card slot (34).

5. The air circulation structure of a high-efficiency purification air conditioning unit according to claim 4, characterized in that: The limiting component (32) includes a slide groove (321), which is located in the middle of both sides of the circulation tube (1). A slider (322) is slidably connected inside the slide groove (321). A locking block (323) is fixedly connected to the end of the slider (322). The end of the locking block (323) is inserted into the slot (34). A magnetic block is fixedly connected inside the locking block (323) and the slot plate (33). The locking block (323) and the slot plate (33) are magnetically attracted to each other through the magnetic block. A square groove (324) is provided on the outside of the slider (322). Anti-slip textures (325) are provided at equal intervals inside the square groove (324).

6. The air circulation structure of a high-efficiency purification air conditioning unit according to claim 5, characterized in that: The collecting mechanism (5) includes a guide frame (51), which is fixedly connected to the bottom of the circulation pipe (1). A collecting frame (52) is fixedly connected to the bottom of the guide frame (51). A collecting drawer (53) is slidably connected inside the collecting frame (52). A cover plate (54) is fixedly connected to the outside of the collecting drawer (53). Limiting screws (55) are threadedly connected to both sides of the top of the cover plate (54). The ends of the limiting screws (55) pass through the cover plate (54) and the collecting frame (52) and are threadedly connected.

7. The air circulation structure of a high-efficiency purification air conditioning unit according to claim 1, characterized in that: The circulation pipe (1) is fixedly installed with mounting frame plates (56) on both sides. Mounting holes (57) are provided at the outer corners of the mounting frame plates (56). The mounting holes (57) are countersunk holes.

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