Air distribution box

Abstract

The utility model discloses an air distribution box which comprises a box body, an air inlet is formed in the top wall of the box body, a plurality of air distribution openings are formed in the bottom wall of the box body, a water pipe connector is arranged on the side wall of the box body, and a surface air cooler is arranged in the box body and located between the air inlet and the air distribution openings. The surface air cooler is communicated with a water supply and return pipeline outside the box body through the water pipe connector. The problems that the temperature of low floors is low throughout the year and the temperature of high floors is high throughout the year can be effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of fresh air system technology, specifically to an air distribution box. Background Technology

[0002] In green buildings, indoor fresh air systems often use distribution boxes as the connection between the main and branch air ducts. Because air rises or falls with different temperatures, during the cooling season, cold air accumulates on lower floors, and during the heating season, heat accumulates on higher floors. Traditional distribution boxes often use empty boxes with one inlet and multiple outlets and built-in insulation, such as the utility model patent with announcement number CN222230873U. This can only deliver the original temperature of the fresh air at the corresponding height of each floor to each room of the residents. As a result, the temperature of lower floors is lower all year round, and the temperature of higher floors is higher all year round. This phenomenon is particularly obvious on the first floor or the top floor. Utility Model Content

[0003] This utility model provides an air distribution box, which uses a surface cooler with a circulating cold / hot medium inside the box to exchange heat with the fresh air passing through the box, thereby changing the temperature of the fresh air and regulating the temperature of the fresh air entering each floor.

[0004] To achieve these and other advantages according to the present invention, a distribution box is provided, comprising:

[0005] The enclosure has an air inlet on its top wall, multiple air outlets on its bottom wall, and water pipe interfaces on its side walls. A surface cooler is installed inside the enclosure, located between the air inlet and the multiple air outlets. The surface cooler is connected to the water supply and return pipelines outside the enclosure through the water pipe interfaces.

[0006] Preferably, in the air distribution box, the bottom edges of the multiple fins of the surface cooler are all set in a V shape, the bottom tips of each fin are all located on the same straight line, and an upward-opening V-shaped guide groove is provided directly below the tip of the fin. A drain outlet corresponding to the bottom tip of the guide groove is provided on the bottom wall of the box.

[0007] Preferably, in the aforementioned air distribution box, one side wall of the box body is provided as a detachable cover plate, and a sealing ring is provided at the joint between the cover plate and the box body.

[0008] Preferably, in the air distribution box, the sealing ring includes:

[0009] The first annular groove is engaged with the mating edge of the box body and the cover plate;

[0010] The second annular groove has the same opening direction as the first annular groove. One side wall of the second annular groove is connected to the top wall of the first annular groove, and the top wall of the second annular groove abuts against the cover plate.

[0011] Preferably, in the air distribution box, the edge of the cover plate is provided with a plurality of connecting plates parallel to it, and the outer wall of the box body is provided with a plurality of connecting bases, the connecting bases being detachably connected to their corresponding connecting plates.

[0012] Preferably, in the air distribution box, the connecting plate is provided with a connecting notch, the connecting base is hinged with a connecting screw, the connecting screw is engaged at the connecting notch and movably fitted with a connecting nut, and the connecting plate is located between the connecting base and the connecting nut and abuts against the connecting nut.

[0013] Preferably, in the air distribution box, an auxiliary rotating plate is provided on the connecting nut.

[0014] Preferably, in the air distribution box, a disinfection module is movably disposed inside the box near the air distribution port.

[0015] Preferably, in the air distribution box, a T-shaped mounting base composed of a horizontal plate and a vertical plate is provided on the inner side wall of the box. The horizontal plate is connected to the side wall of the box, and a plurality of first mounting holes are provided on the vertical plate along its length. The disinfection module is provided with at least one mounting block, and the mounting block is provided with a second mounting hole. At least one second mounting hole corresponds to at least one of the first mounting holes and a positioning rod is inserted therein.

[0016] Preferably, in the air distribution box, the first mounting hole and the second mounting hole are both threaded holes, and the positioning rod is a bolt.

[0017] Preferably, in the air distribution box, an air distribution pipe is connected to the air distribution port, and the air distribution pipe is detachably connected to the box body via a locking mechanism, the locking mechanism comprising:

[0018] A connecting cylinder is inserted into the air distribution port, and the air distribution pipe is sleeved on its outside;

[0019] An outer locking cylinder is located outside the housing and sleeved outside the air distribution pipe. The outer locking cylinder is frustoconical and its smaller diameter end is close to the housing.

[0020] At least three inner locking components, all of which are arc-shaped and are movably inserted between the air distribution pipe and the outer locking cylinder, clamping the air distribution pipe with the connecting cylinder. The inner walls of each inner locking component are located on the same cylindrical side surface, and the outer walls of each inner locking component are located on the same frustum side surface, and are all connected to the inner wall of the outer locking cylinder through a threaded structure.

[0021] This utility model has at least the following beneficial effects: It can efficiently regulate air temperature. The air inlet on the top wall of the box facilitates natural air flow, and the multiple air outlets on the bottom wall can adjust the airflow as needed. In conjunction with the water pipe interface on the side wall, the surface cooler is connected to the supply and return water pipes. When cooling, cold water cools the air by lowering the surface cooler, and when heating, hot water heats the air, achieving flexible and efficient air conditioning. It can increase the temperature of fresh air on lower floors after passing through the surface cooler, and decrease the temperature of fresh air on higher floors after passing through the surface cooler, thereby effectively alleviating the problem of lower floors having lower temperatures all year round and higher floors having higher temperatures all year round.

[0022] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall assembly structure of the air distribution box in one of the technical solutions of this utility model;

[0024] Figure 2 This is a schematic diagram of the main structure of the air distribution box in one of the technical solutions of this utility model;

[0025] Figure 3 This is a side view of the air distribution box in one of the technical solutions of this utility model;

[0026] Figure 4 This is a top view of the air distribution box in one of the technical solutions of this utility model;

[0027] Figure 5 This is a cross-sectional view of the air distribution box in one of the technical solutions of this utility model;

[0028] Figure 6 This is a schematic diagram of the surface cooler structure in another technical solution of this utility model;

[0029] Figure 7 This is a schematic diagram of the sealing ring structure in another technical solution of this utility model;

[0030] Figure 8 This is a cross-sectional view of the sealing ring in another technical solution of this utility model;

[0031] Figure 9 This is a schematic diagram of the cover plate structure in another technical solution of this utility model;

[0032] Figure 10 This is a schematic diagram of the connection structure between the cover plate and the box body in another technical solution of this utility model;

[0033] Figure 11This is a schematic diagram of the connection structure between the disinfection module and the mounting base in another technical solution of this utility model;

[0034] Figure 12 This is a front view schematic diagram of the connection structure between the disinfection module and the mounting base in another technical solution of this utility model;

[0035] Figure 13 This is a schematic diagram of the connecting cylinder structure in another technical solution of this utility model;

[0036] Figure 14 This is a schematic diagram of the external locking cylinder structure in another technical solution of this utility model;

[0037] Figure 15 This is a schematic diagram of the internal locking component structure in another technical solution of this utility model;

[0038] Figure 16 This is a schematic diagram of the main structure of the inner locking component in another technical solution of this utility model;

[0039] Among them, 1-air inlet, 2-sealing ring, 201-first annular groove, 202-second annular groove, 3-connecting nut, 4-connecting screw, 5-connecting plate, 6-connecting base, 7-cover plate, 8-box body, 9-water pipe interface, 10-outer locking cylinder, 11-inner locking piece, 12-connecting cylinder, 13-air distribution port, 14-auxiliary rotating plate, 15-surface cooler, 16-guide channel, 17-disinfection module, 18-mounting base, 1801-vertical plate, 1802-horizontal plate, 19-mounting block, 20-second mounting hole, 21-fins. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0041] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, this utility model provides a distribution box, comprising:

[0044] The housing 8 has an air inlet 1 on its top wall, multiple air outlets 13 on its bottom wall, and a water pipe interface 9 on its side wall. A surface cooler 15 is installed inside the housing 8. The surface cooler 15 is located between the air inlet 1 and the multiple air outlets 13. The surface cooler 15 is connected to the water supply and return pipeline outside the housing 8 through the water pipe interface 9.

[0045] The air distribution box provided in this technical solution is mainly used in the field of air conditioning. It mainly includes a box body 8. The top wall of the box body 8 is provided with an air inlet 1, through which outside air enters the interior of the box body 8. Multiple air distribution ports 13 are distributed on the bottom wall of the box body 8, which are used to deliver the air processed inside the box body 8 to different areas, such as different rooms. A water pipe interface 9 is provided on the side wall of the box body 8. This interface plays a key connection role. A surface cooler 15 is installed inside the box body 8, which is located between the air inlet 1 and the multiple air distribution ports 13. The surface cooler 15 is connected to the supply and return water pipes outside the box body 8 through the water pipe interface 9, so that the cold source or heat source in the supply and return water pipes can be used to cool or heat the air entering through the air inlet 1.

[0046] The working principle or usage method of the air distribution box provided in this technical solution is as follows:

[0047] Air Circulation and Treatment: During operation, outside air enters through the air inlet 1 on the top wall of the housing 8. The temperature of the surface cooler 15 can be controlled by adjusting the hot and cold water in the supply and return water pipes according to actual needs. When cooling is required, cold water is supplied, lowering the temperature of the surface cooler 15; when heating is required, hot water is supplied, raising the temperature of the surface cooler 15. The incoming air exchanges heat with the surface cooler 15 as it flows between the air inlet 1 and the air distribution outlet 13. In cooling mode, the air is cooled; in heating mode, the air is heated. The treated air is then distributed to different areas through multiple air distribution outlets 13 on the bottom wall of the housing 8, achieving temperature regulation in these areas.

[0048] This utility model has at least the following beneficial effects:

[0049] High-efficiency air temperature regulation: The enclosure 8, through the connection design of the air inlet 1, the air outlet 13, and the surface cooler 15 with the supply and return water pipes, can flexibly utilize cold or heat sources to efficiently cool or heat the air entering the enclosure 8, meet the air temperature regulation needs of different areas, and achieve precise air conditioning effect. It can make the temperature of fresh air on the lower floors rise after passing through the surface cooler 15, and the temperature of fresh air on the higher floors drop after passing through the surface cooler 15, thereby effectively alleviating the problem of the lower floors having lower temperatures all year round and the higher floors having higher temperatures all year round.

[0050] In another technical solution, such as Figure 5 , Figure 6 As shown, in the air distribution box, the bottom edges of the multiple fins 21 of the surface cooler 15 are all set in a V shape, and the bottom tips of each fin 21 are all located on the same straight line. A V-shaped guide groove 16 with an upward opening is provided directly below the tip of the fin 21, and a drain outlet corresponding to the bottom tip of the guide groove 16 is provided on the bottom wall of the box body 8.

[0051] The surface cooler 15 in this technical solution features a unique design with multiple fins 21. The bottom edge of each fin 21 is V-shaped, and the bottom tips of each fin 21 are all on the same straight line. A V-shaped guide groove 16 with an upward opening is provided directly below the tip of the fin 21. When moisture in the air condenses into water droplets on the fins 21 of the surface cooler 15, it flows along the bottom of the V-shaped fin 21 to the tip and then drips into the V-shaped guide groove 16 below. On the bottom wall of the housing 8, there is a drain outlet corresponding to the bottom tip of the guide groove 16. The condensate collected by the guide groove 16 is finally discharged from the housing 8 through this drain outlet, ensuring the normal operation of the equipment and preventing the accumulation of condensate in the housing 8, which would cause adverse effects. A drain pipe can be connected to the drain outlet to collect and discharge the condensate from the housing 8.

[0052] The working principle of this technical solution is as follows: Condensate collection and discharge: During the refrigeration process, as the air is cooled, the water vapor in it condenses into water droplets on the low-temperature surface cooler 15 fins 21. Thanks to the unique V-shaped design at the bottom of the surface cooler 15 fins 21, the water droplets flow along the bottom of the V-shaped fins 21 towards the tip. The upward-opening V-shaped guide channel 16 directly below the tip of the fins 21 can accurately catch the water droplets dripping from the tip of the fins 21. As the water droplets continuously accumulate, the condensate in the guide channel 16 flows towards the bottom tip. The drain outlet on the bottom wall of the housing 8, corresponding to the bottom tip of the guide channel 16, discharges the condensate in the guide channel 16 into the housing 8. If a drain pipe is connected to the drain outlet, the condensate can be guided to a designated location for centralized collection and treatment, preventing condensate from splashing randomly around the housing 8 and maintaining a clean and dry operating environment for the equipment.

[0053] This technical solution also includes the following beneficial effects:

[0054] Unique condensate management: The V-shaped design at the bottom of the fins 21 of the surface cooler 15, along with the matching V-shaped guide channel 16 and drain outlet, forms a highly efficient condensate collection and discharge system. This ensures that condensate can be discharged from the housing 8 in a timely and smooth manner, preventing condensate from accumulating inside the housing 8, reducing the risk of equipment failure, ensuring stable equipment operation, and maintaining a clean and dry operating environment.

[0055] Reasonable and compact structure: The layout of each component is reasonable. The air inlet 1, air outlet 13, surface cooler 15, water pipe interface 9, etc. are closely coordinated. Multiple functions such as air handling, heat exchange and condensate drainage are realized in a limited space. The overall structure is compact, saves installation space, and is easy to integrate into various air conditioning systems.

[0056] In another technical solution, such as Figure 1 , Figure 2 , Figure 5 As shown, in the aforementioned air distribution box, the bottom wall of the box body 8 is configured with a V-shaped structure, and the drain outlet is located at the bottom tip of the bottom wall of the box body 8. This facilitates the outflow of condensate.

[0057] In another technical solution, such as Figure 1 , Figure 3 , Figure 4 , 7 As shown, in the aforementioned air distribution box, one side wall of the box body 8 is provided with a removable cover plate 7, and a sealing ring 2 is provided at the joint between the cover plate 7 and the box body 8. The removable cover plate 7 facilitates the disassembly and maintenance of the internal parts of the box body 8; the sealing ring 2 improves the overall sealing performance of the air distribution box and prevents air leakage.

[0058] In another technical solution, such as Figure 1 , Figure 3 , Figure 4 , Figure 7 , Figure 8 As shown, in the aforementioned air distribution box, the sealing ring 2 includes:

[0059] The first annular groove 201 is fastened to the mating edge of the box body 8 and the cover plate 7;

[0060] The second annular groove 202 has the same opening direction as the first annular groove 201. One side wall of the second annular groove 202 is connected to the top wall of the first annular groove 201, and the top wall of the second annular groove 202 abuts against the cover plate 7.

[0061] The first annular groove 201 is fastened to the mating edge of the housing 8 and the cover plate 7, initially forming a sealing barrier to block the intrusion of some external air, dust, and moisture. The second annular groove 202 opens in the same direction as the first annular groove 201, and one side wall is connected to the top wall of the first annular groove 201. Its top wall abuts against the cover plate 7, constructing a double sealing structure. In complex operating environments, such as industrial plants with large amounts of dust and exhaust gas, the double seal can more effectively prevent pollutants from entering the housing 8, ensuring the normal operation of key components such as the surface cooler 15, and improving the precision and quality of air handling. The top wall of the second annular groove 202 abuts tightly against the cover plate 7 and can adaptively adjust according to the pressure during the installation of the cover plate 7 to ensure the tightness of the seal. At the same time, the structure of the two annular grooves in... To a certain extent, it acts as a buffer. When the cover plate 7 is subjected to external impact or slight deformation due to temperature changes, the elastic structure of the annular groove can absorb some of the stress, avoiding sealing failure caused by rigid contact, ensuring that the housing 8 always maintains good sealing performance under different working conditions, and improving the stability of equipment operation; improving sealing stability: Compared with a single sealing ring 2, this unique double groove structure increases the sealing contact area and sealing path. During long-term use, even if some sealing areas experience slight wear or aging, other areas can still maintain effective sealing, greatly improving the stability and reliability of the seal. For example, in some air conditioning systems that require continuous operation, stable sealing performance can reduce the frequency of equipment maintenance, reduce operating costs, and ensure the continuous and efficient operation of the system.

[0062] In another technical solution, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 9 , Figure 10As shown, in the aforementioned air distribution box, the edge of the cover plate 7 is provided with multiple parallel connecting plates 5, and the outer wall of the box body 8 is provided with multiple connecting bases 6. The connecting bases 6 are detachably connected to their corresponding connecting plates 5. The parallel connecting plates 5 on the edge of the cover plate 7 correspond to the positions of the connecting bases 6 on the outer wall of the box body 8, allowing for quick and accurate alignment during installation without repeated adjustments, greatly shortening installation time and improving installation efficiency, making it suitable for large-scale equipment installation scenarios. The detachable connection between the connecting plates 5 and the connecting bases 6 allows for easy disassembly and quick opening of the cover plate 7 when maintenance and repair of the equipment inside the box body 8 are required, facilitating the inspection, repair, or replacement of internal components and reducing maintenance difficulty and cost. The even distribution and coordinated connection of multiple connecting plates 5 and connecting bases 6 disperses the external forces on the cover plate 7, enhancing the stability of the connection between the cover plate 7 and the box body 8, ensuring that the cover plate 7 remains tightly fitted to the box body 8 under conditions of vibration and external impact, guaranteeing normal operation of the equipment.

[0063] In another technical solution, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 9 , Figure 10 As shown, in the aforementioned air distribution box, the connecting plate 5 is provided with a connecting notch, and a connecting screw 4 is hinged to the connecting base 6. The connecting screw 4 is engaged at the connecting notch and movably fitted with a connecting nut 3. The connecting plate 5 is located between the connecting base 6 and the connecting nut 3 and abuts against the connecting nut 3. Multiple connecting structures work together to connect the cover plate 7 to the box body 8. The connecting screw 4 is hinged to the connecting base 6. During use, it can be directly rotated to the connecting notch without the need for cumbersome alignment. Then, the connecting nut 3 is fitted to complete the connection. The installation process is simple and efficient, reducing installation difficulty and improving work efficiency. After tightening, the connecting nut 3 tightly abuts against the connecting plate 5. Combined with the fixing effect of the connecting screw 4, the connecting plate 5 is securely clamped between the connecting base 6 and the connecting nut 3. This effectively withstands the vibration and external forces generated during equipment operation, ensuring a stable connection between the cover plate 7 and the housing 8, preventing loosening that could affect normal equipment operation. The connecting screw 4 can move at the connecting notch. By adjusting the tightening of the connecting nut 3, the connection tightness between the connecting plate 5 and the connecting base 6 can be flexibly adjusted to meet the connection requirements of the cover plate 7 under different working conditions. It also facilitates fine-tuning according to actual conditions during reinstallation after equipment maintenance.

[0064] In another technical solution, such as Figure 4 , Figure 10 As shown, in the aforementioned air distribution box, an auxiliary rotating plate 14 is provided on the connecting nut 3 to facilitate rotation of the connecting nut 3.

[0065] In another technical solution, such as Figure 5 , Figure 11 , Figure 12 As shown, in the aforementioned air distribution box, a disinfection module 17 is movably installed inside the box body 8 near the air distribution port 13. The disinfection module 17 can be a plasma disinfection module or an ultraviolet disinfection module; the disinfection module 17 can effectively kill bacteria, viruses and other microorganisms in the air, purify the air, and improve the air treatment quality of the fresh air system; for densely populated places such as office buildings, the purified air can reduce the spread of germs, reduce the risk of infection for personnel, protect the health of office workers, and create a healthier office environment; the movable disinfection module 17 is easy to disassemble and flexibly adjust its position, making it convenient to regularly inspect and replace the disinfection module 17, ensuring that the disinfection module 17 always maintains a good working condition, and its position can be flexibly adjusted to make full use of the disinfection function.

[0066] In another technical solution, such as Figure 5 , Figure 11 , Figure 12As shown, in the aforementioned air distribution box, a T-shaped mounting base 18 composed of a horizontal plate 1802 and a vertical plate 1801 is provided on the inner side wall of the box body 8. The horizontal plate 1802 is connected to the side wall of the box body 8. The vertical plate 1801 is provided with a plurality of first mounting holes along its length direction. The disinfection module 17 is provided with at least one mounting block 19. The mounting block 19 is provided with a second mounting hole 20. At least one second mounting hole 20 corresponds to at least one of the first mounting holes and a positioning rod is inserted therein. Before installing the disinfection module 17, ensure that the T-shaped mounting base 18 on the inner wall of the box 8 is securely installed. Check whether the connection between the horizontal plate 1802 and the side wall of the box 8 is tight, and whether the first mounting hole on the vertical plate 1801 is blocked or damaged. At the same time, confirm that the second mounting hole 20 on the mounting block 19 of the disinfection module 17 is intact. Then, move the disinfection module 17 to a position close to the mounting base 18, aligning the second mounting hole 20 on the mounting block 19 with the first mounting hole on the vertical plate 1801. According to actual needs, select the appropriate position for the first mounting hole and the second mounting hole 20 to correspond, and then insert the positioning rod into the corresponding mounting hole to complete the initial fixation. If it is necessary to adjust the position of the disinfection module 17, the positioning rod can be pulled out, and the disinfection module 17 can be moved along the length of the vertical plate 1801. The first mounting hole and the second mounting hole 20 can be re-aligned, and the positioning rod can be inserted again until the disinfection module 17 is adjusted to the ideal position and fixed securely. The T-shaped mounting base 18 and the disinfection module 17 are connected through mounting holes and positioning rods. The operation is simple and requires no complicated tools or professional skills, allowing for quick installation and improving construction efficiency. The multiple first mounting holes on the vertical plate 1801 allow for flexible adjustment of the installation height of the disinfection module 17 based on factors such as the airflow direction inside the housing 8 and the position of the air distribution vent 13, ensuring maximum disinfection effect. The connection method of inserting the positioning rod into the corresponding mounting hole effectively prevents the disinfection module 17 from shaking or shifting during operation, ensuring stable operation and extending its service life.

[0067] In another technical solution, the first and second mounting holes in the air distribution box are both threaded holes, and the positioning rod is a bolt. The bolt and nut together fix the disinfection module on the mounting base; the threaded hole and the bolt and nut provide a strong tightening force, ensuring the disinfection module is stable and does not loosen during operation; the installation height of the disinfection module can be flexibly adjusted according to airflow by rotating the bolt; disassembly is simple, requiring only the unscrewing of the nut and bolt, saving maintenance costs and time.

[0068] In another technical solution, such as Figure 1 ... Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 13 , Figure 14 , Figure 15 , Figure 16As shown, in the aforementioned air distribution box, an air distribution pipe is connected to the air distribution port 13. The air distribution pipe is detachably connected to the box body 8 via a locking mechanism. The locking mechanism includes:

[0069] A connecting cylinder 12 is inserted into the air distribution port 13, and the air distribution pipe is sleeved on its outside;

[0070] An outer locking cylinder 10 is located outside the housing 8 and sleeved outside the air distribution pipe. The outer locking cylinder 10 is frustoconical and its smaller diameter end is close to the housing 8.

[0071] At least three inner locking members 11, all of which are arc-shaped and are movably inserted between the air distribution pipe and the outer locking cylinder 10, and clamp the air distribution pipe with the connecting cylinder 12. The inner wall of each inner locking member 11 is located on the same cylindrical side surface, and the outer wall of each inner locking member 11 is located on the same frustum side surface, and is connected to the inner wall of the outer locking cylinder 10 through a threaded structure. The connecting cylinder 12 is inserted at the air distribution port 13, and the connecting cylinder 12 located inside the housing 8 is connected to the housing 8. When installing the air distribution pipe, first, the outer locking cylinder 10 is fitted onto the connecting cylinder 12 located outside the housing 8, then the air distribution pipe is inserted into the outer locking cylinder 10 and fitted onto the connecting cylinder 12. Then, multiple inner locking parts 11 are inserted between the air distribution pipe and the outer locking cylinder 10, their positions are adjusted, and then each inner locking part 11 is rotated synchronously. Driven by the threaded structure, each inner locking part 11 moves continuously towards the small diameter end of the outer locking cylinder 10. At the same time, the gap between each inner locking part 11 gradually decreases, clamping the air distribution pipe together with the connecting cylinder 12. The air distribution pipe is squeezed and tightened continuously until it is completely sealed. Rotating each inner locking part 11 in the opposite direction can loosen and disassemble the air distribution pipe. The inner wall of the inner locking part 11 can be set to an undulating corrugated surface or a smooth surface according to the type of air distribution pipe wall, corresponding to the installation of corrugated pipes or smooth PVC pipes, respectively. In this technical solution, the connection method of each component using sleeves and threads is simple to operate, requires no complicated tools, and is highly efficient in installation, enabling rapid connection of the air distribution duct to the housing 8. Multiple inner locking parts 11 and connecting cylinder 12 together clamp the air distribution duct, and the inner locking parts 11 are threadedly connected to the outer locking cylinder 10, providing strong clamping force to ensure that the air distribution duct will not loosen or fall off during operation, guaranteeing stable system operation. The arc-shaped design of the inner locking parts 11 and their compatibility with components of different shapes can adapt to air distribution ducts of different diameters, improving the versatility of the locking mechanism. Disassembly is convenient: simply rotating the outer locking cylinder 10 in the reverse direction loosens the inner locking parts 11, enabling rapid disassembly of the air distribution duct, facilitating maintenance, replacement, or system modification. Preferably, four inner locking parts are provided, which can be assembled into a structure with an inner cylindrical side and an outer frustum-shaped side.

[0072] In another technical solution, the inner wall of the air distribution box is lined with thermal insulation cotton for sound absorption and heat preservation.

[0073] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.

[0074] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A distribution box, characterized in that, include: The enclosure has an air inlet on its top wall, multiple air outlets on its bottom wall, and water pipe interfaces on its side walls. A surface cooler is installed inside the enclosure, located between the air inlet and the multiple air outlets. The surface cooler is connected to the water supply and return pipelines outside the enclosure through the water pipe interfaces.

2. The air distribution box as described in claim 1, characterized in that, The bottom edges of the multiple fins of the surface cooler are all V-shaped, and the bottom tips of each fin are all on the same straight line. A V-shaped guide groove with an upward opening is provided directly below the tip of the fin, and a drain outlet corresponding to the bottom tip of the guide groove is provided on the bottom wall of the housing.

3. The air distribution box as described in claim 1, characterized in that, One side wall of the box is provided with a detachable cover plate, and a sealing ring is provided at the joint between the cover plate and the box.

4. The air distribution box as described in claim 3, characterized in that, The sealing ring includes: The first annular groove is engaged with the mating edge of the box body and the cover plate; The second annular groove has the same opening direction as the first annular groove. One side wall of the second annular groove is connected to the top wall of the first annular groove, and the top wall of the second annular groove abuts against the cover plate.

5. The air distribution box as described in claim 3, characterized in that, The cover plate has multiple parallel connecting plates along its edge, and the outer wall of the box has multiple connecting bases, which are detachably connected to their corresponding connecting plates.

6. The air distribution box as described in claim 5, characterized in that, The connecting plate is provided with a connecting notch, and a connecting screw is hinged on the connecting base. The connecting screw is engaged at the connecting notch and is movably fitted with a connecting nut. The connecting plate is located between the connecting base and the connecting nut and abuts against the connecting nut.

7. The air distribution box as described in claim 1, characterized in that, Inside the enclosure, a disinfection module is movably installed near the air vent.

8. The air distribution box as described in claim 7, characterized in that, The inner side wall of the box is provided with a T-shaped mounting base composed of a horizontal plate and a vertical plate. The horizontal plate is connected to the side wall of the box. The vertical plate is provided with a plurality of first mounting holes along its length. The disinfection module is provided with at least one mounting block. The mounting block is provided with a second mounting hole. At least one second mounting hole corresponds to at least one of the first mounting holes and a positioning rod is inserted therein.

9. The air distribution box as described in claim 8, characterized in that, Both the first mounting hole and the second mounting hole are threaded holes, and the positioning rod is a bolt.

10. The air distribution box as described in claim 1, characterized in that, An air distribution duct is connected to the air distribution outlet, and the air distribution duct is detachably connected to the housing via a locking mechanism. The locking mechanism includes: A connecting cylinder is inserted into the air distribution port, and the air distribution pipe is sleeved on its outside; An outer locking cylinder is located outside the housing and sleeved outside the air distribution pipe. The outer locking cylinder is frustoconical and its smaller diameter end is close to the housing. At least three inner locking components, all of which are arc-shaped and are movably inserted between the air distribution pipe and the outer locking cylinder, clamping the air distribution pipe with the connecting cylinder. The inner walls of each inner locking component are located on the same cylindrical side surface, and the outer walls of each inner locking component are located on the same frustum side surface, and are all connected to the inner wall of the outer locking cylinder through a threaded structure.

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