A bedside table with a fresh air system

Abstract

A bedside table with a fresh air system, belonging to the technical field of bedside table technology, includes a cabinet body, and further includes: a first partition, a fourth partition, a fifth partition, ventilation strip holes, a second air intake pipe, a fan, a first ventilation pipe, a temperature regulator, a second ventilation pipe, and a third ventilation pipe. The first partition is installed vertically in the inner cavity of the cabinet, and the first partition is arranged parallel to the rear side of the inner wall of the cabinet. The fourth and fifth partitions are both installed along the front-rear direction on the front side wall of the first partition. This utility model solves the problem of lack of fresh air in traditional purifiers by constructing an indoor and outdoor air circulation system, thereby improving the overall purification capacity; it adjusts the fresh air temperature through an intelligent temperature control module to avoid indoor temperature fluctuations and improve comfort; it meets the oxygen supply needs of the bed area and the ventilation needs of the whole room through a flexible guiding function; it avoids direct airflow when supplying air to the bed and improves ventilation efficiency when air is directed away from the bed through an angle adjustment mechanism; and it controls multiple sets of air guiding components in a unified manner through a synchronous adjustment mechanism.

Description

Technical Field

[0001] This utility model belongs to the field of bedside table technology, specifically relating to a bedside table with a fresh air system. Background Technology

[0002] Currently, traditional bedside tables have relatively limited functions and lack air purification capabilities. While existing freestanding air purifiers can purify indoor air, they suffer from drawbacks such as large space requirements and inconvenient storage. With the trend towards efficient use of home space and integrated functionality, exploring how to incorporate air purification into bedside table design to achieve both space saving and functional expansion has become a key direction for innovation in home furnishing products.

[0003] A related technology (Chinese patent CN218304017U) discloses an air-purifying bedside table, including a cabinet body. The cabinet body is a cavity with an opening on one side. A storage drawer and an air intake fan are arranged inside the cabinet opening. The air intake fan has an air inlet and an air outlet, which respectively pass through the cabinet body and communicate with the outside. The air inlet is covered with a filter device. The bedside table has an air intake fan with an air inlet and an air outlet, both of which pass through the cabinet body and communicate with the outside. The air inlet is covered with a filter device. Air is drawn in from near the bedside table body after being filtered, and then discharged from the air outlet, thereby purifying the indoor air. The bedside table can purify air, has a simple structure, is convenient to use, and does not take up extra space.

[0004] While the above solutions can effectively purify indoor air, their function is limited to filtering, adsorbing, and purifying existing indoor air, lacking the function of actively introducing fresh outdoor air for ventilation. Because they cannot create air circulation, relying solely on internal purification is insufficient to significantly improve indoor oxygen levels or effectively reduce the concentration of accumulated carbon dioxide, resulting in a clear limitation in their overall ability to regulate indoor air quality. Utility Model Content

[0005] To address the shortcomings of existing air purification technologies, which only filter and purify indoor air and lack fresh air exchange, resulting in poor air circulation and limited overall purification capacity due to insufficient oxygen levels and ineffective carbon dioxide reduction, this invention provides a bedside table with a fresh air system. This system uses an oxygen sensor to monitor indoor oxygen levels in real time and links with a controller, fan, first ventilation pipe, second ventilation pipe, and third ventilation pipe to introduce fresh outdoor air into the room through ventilation slots. This creates an indoor-outdoor air circulation system, effectively solving air quality problems caused by insufficient ventilation and significantly improving overall purification capacity. The specific technical solution is as follows: A bedside table with a fresh air system includes a cabinet body and further includes: a first partition, a fourth partition, a fifth partition, ventilation slots, a second air intake duct, a fan, a first ventilation pipe, a temperature regulator, a second ventilation pipe, and a third ventilation pipe. The first partition is installed vertically within the inner cavity of the cabinet and is parallel to the rear side of the inner wall of the cabinet. The fourth and fifth partitions are both installed along the front-rear direction on the front side wall of the first partition, and the fourth and fifth partitions form an inner cavity for fresh air to enter. Multiple sets of ventilation slots are provided, and the multiple sets of ventilation slots... The strip-shaped holes are respectively opened through the fifth partition; the second air intake pipe is installed at the bottom of the left side wall of the cabinet and is connected to the inner cavity formed by the cabinet and the first partition; the fan is installed in the inner cavity between the cabinet and the first partition, and one end of the fan is connected to the second air intake pipe; the first ventilation pipe is connected to the other end of the fan, and the first ventilation pipe, the temperature regulator, the second ventilation pipe and the third ventilation pipe are sequentially connected, and both ends of the third ventilation pipe extend into the inner cavity formed by the fourth partition and the fifth partition respectively.

[0006] In the above technical solution, a fresh air ventilation guide unit is provided above the ventilation strip hole. The fresh air ventilation guide unit includes multiple sets of guide components. Each set of guide components includes: a mounting block, a rotating rod, a drive rod, an arc-shaped guide plate, and a gear. Two mounting blocks are provided, and the two mounting blocks are installed on the upper surface of the fifth partition plate in a corresponding manner. The rotating rod is rotatably mounted at the two mounting blocks. Two drive rods are provided, and one end of the two drive rods is fixedly mounted at the front and rear ends of the rotating rod, respectively. The arc-shaped guide plate is fixedly mounted at the other end of the two drive rods, and the arc-shaped guide plate is arc-shaped. The gear is fixedly mounted at the rear end of the rotating rod.

[0007] In the above technical solution, each group of guide components further includes: a vertical baffle, which is fixed and vertically installed on the fifth partition, and the vertical baffle is located to the left of the ventilation strip hole, and the arc-shaped guide plate is rotatably arranged relative to the vertical baffle.

[0008] In the above technical solution, a noise reduction component is provided between the fan and the first ventilation pipe. The noise reduction component includes: an expansion chamber, a sound-absorbing and noise-reducing layer, an inlet guide pipe, an outlet guide pipe, and circular holes. The expansion chamber is connected between the fan and the first ventilation pipe. The sound-absorbing and noise-reducing layer is installed on the inner wall of the expansion chamber. Multiple inlet guide pipes and outlet guide pipes are equidistantly arranged along the inner circumference of the expansion chamber, and the inlet guide pipes and outlet guide pipes are configured with a staggered insertion structure. Circular holes are equidistantly opened on the inlet guide pipes and outlet guide pipes.

[0009] In the above technical solution, the inlet guide pipe is inserted into the expansion chamber to a depth of half the depth of the expansion chamber, and the outlet guide pipe is inserted into the expansion chamber to a depth of one-quarter of the depth of the expansion chamber; the total area of ​​the circular holes accounts for 20%-30% of the total area of ​​the sidewalls of the inlet guide pipe and the outlet guide pipe, and the circular holes are arranged in a rectangular array with uniform holes, and the center distance between adjacent holes is 2-3 times the hole diameter.

[0010] In the above technical solution, the fresh air ventilation guiding unit further includes a dust-blocking component, which includes a mesh cover, a positioning pin, and a spring. The mesh cover is slidably embedded in the inner cavity of the arc-shaped guide plate, and the mesh cover has uniform holes. The mesh cover is set to an arc shape that adapts to the curvature of the arc-shaped guide plate. The positioning pin is slidably inserted into the inner cavity of the arc-shaped guide plate, and the bottom end of the positioning pin is slidably embedded in the hole of the mesh cover. The spring is sleeved on the positioning pin, and both ends of the spring are respectively connected to the outer wall of the positioning pin and the outer wall of the arc-shaped guide plate.

[0011] In the above technical solution, each group of guide components is uniformly driven by a drive component, which includes a rack, a movable frame, and a limiting block. The rack is horizontally movably disposed below the gear and meshes with the gear. The movable frame is fixedly installed on the lower surface of the rack. Two limiting blocks are provided, and the two limiting blocks are respectively fixedly installed on the rear sidewall of the first partition. The movable frame slides horizontally through the sidewall of the limiting block.

[0012] In the above technical solution, the rack is provided with a locking assembly, which includes: a second partition, a third partition, a through groove, a connecting seat, a threaded rod, a nut, and a handle. The second partition and the third partition are respectively installed in the space between the rear side wall of the first partition and the cabinet, and the third partition is flush with the upper surface of the cabinet. The driving assembly is located in the space between the third partition and the second partition. The through groove is horizontally opened through the third partition. One end of the connecting seat is fixedly connected to the rack. The second ventilation pipe is vertically and fixedly installed at the other end of the connecting seat. The threaded rod slides vertically through the inner cavity of the third partition, and the upper half of the threaded rod is provided with external threads, while the lower half is a smooth rod. The nut is threaded onto the upper half of the threaded rod. The handle is fixedly installed at the top of the handle.

[0013] In the above technical solution, a telescopic filter assembly is provided at the left end of the second air intake pipe. The telescopic filter assembly includes: a telescopic pipe, a first air intake pipe, an interface, an arc-shaped groove, a filter screen, and a positioning block. The telescopic pipe is connected to the left end of the second air intake pipe; the first air intake pipe is connected to the left end of the telescopic pipe; the interface is fixedly installed at the left end of the first air intake pipe; the arc-shaped groove is formed on the interface, and the length of the arc-shaped groove is greater than half of the circumference of the interface; the filter screen is slidably inserted into the inner cavity of the arc-shaped groove; and the positioning block is detachably positioned at the top of the interface.

[0014] The above technical solution further includes: a controller, an oxygen sensor, a support arm, a first platform, a second platform, a micro motor, a rotating shaft, a first connecting block, and a second connecting block. The controller is installed on the top of the front side wall of the cabinet; the oxygen sensor is installed on the upper surface of the third partition; two support arms are provided, and the two support arms are respectively vertically and fixedly installed on the left and right sides of the upper surface of the cabinet; the first platform is fixedly installed on the two support arms; the second platform is rotatably disposed on the front side of the first platform; the micro motor is installed on the right side wall of the first platform through a motor frame; the rotating shaft is installed on the output end of the micro motor; two first connecting blocks are provided, and the two first connecting blocks are respectively fixedly installed on the side wall of the second platform, and the rotating shaft is fixedly connected to the two first connecting blocks; the second connecting block is fixedly installed on the first platform, and the rotating shaft rotatably passes through the side wall of the second connecting block.

[0015] The advantages of this new bedside table with a fresh air system compared to existing technologies are as follows: I. In view of the problem that existing air purification methods only filter and purify indoor air and lack the function of introducing fresh air for ventilation, it is difficult to form an air circulation, resulting in the inability to increase indoor oxygen content and effectively reduce carbon dioxide concentration, thus limiting the overall purification capacity. This utility model realizes real-time monitoring of indoor oxygen content through an oxygen sensor, and links the controller, fan, first ventilation pipe, second ventilation pipe, third ventilation pipe and other components to introduce fresh outdoor air into the room through ventilation strip holes, thus constructing an indoor and outdoor air circulation system, effectively solving the air quality problems caused by lack of ventilation, and significantly improving the overall purification capacity; Second, this utility model further incorporates an outdoor air heating and cooling function. By constructing an intelligent temperature control module through a temperature regulator, the temperature of the fresh air introduced into the room is adjusted accordingly to ensure that its temperature is highly compatible with the indoor environment. This feature effectively avoids the problem of sudden changes in indoor temperature caused by the direct replacement of hot and cold air in traditional fresh air exchange, improves human comfort, and achieves dual optimization of fresh air exchange and temperature control. Third, this utility model has a fresh air ventilation guide function set at the ventilation strip hole, which can flexibly adjust the direction of fresh air entering the room to meet the differentiated air supply needs of being close to or away from the bed; when fresh air is blown in towards the bed, it can provide high concentration of oxygen to the human body in a targeted manner, which is especially suitable for scenarios where the indoor carbon dioxide concentration is too high in the morning and there is an urgent need to increase the oxygen content; when the airflow blows in away from the bed, it can realize the air replacement of the whole room environment, effectively balancing the functional needs of local oxygen supply and overall fresh air exchange. IV. This utility model can adjust the rotation angle of the arc-shaped guide plate relative to the vertical baffle: when fresh air needs to be blown towards the bed, the arc-shaped guide plate rotates towards the bed body, increasing the blocking area of ​​the air intake at the ventilation strip hole, thus meeting the fresh air delivery needs of the bed area while avoiding the airflow blowing directly to the head of the bed and causing discomfort to the human body; when fresh air needs to be blown away from the bed, the arc-shaped guide plate is in a more open state, which can realize the introduction of a large flow of outdoor fresh air, thereby improving the indoor and outdoor fresh air exchange efficiency; V. This utility model achieves synchronous adjustment of the rotation angle of multiple sets of arc-shaped guide plates corresponding to multiple sets of ventilation slots through the coordinated cooperation of rack and pinion and multiple sets of gears. This mechanism eliminates the need to adjust the fresh air intake at each ventilation slot independently. By uniformly controlling the rotation angle of multiple sets of arc-shaped guide plates, it not only significantly improves the intelligence and convenience of adjustment and reduces operation steps, but also ensures the consistency of the rotation angle of each set of arc-shaped guide plates after adjustment, realizing the coordinated control of fresh air exchange in multiple areas. VI. This utility model, through the coordinated operation of components such as connecting seat, threaded rod, hand lever, and through groove, can drive the rack above the cabinet to generate displacement, thereby driving all arc-shaped guide plates to synchronously complete the rotation angle adjustment. It can also lock the position of the threaded rod after adjustment with the help of nuts, so as to lock the position of the rack after displacement. It can achieve integrated control of multiple sets of arc-shaped guide plates, and the operation process is simple and efficient, reducing the complexity of multi-component linkage adjustment. VII. This utility model adopts a sliding embedded design inside each set of arc-shaped guide plates and is equipped with a mesh cover with a mesh structure. This structure ensures the smooth introduction of fresh air while achieving efficient dust interception function with its mesh structure. It effectively prevents outdoor dust from directly entering the cabinet through the open ventilation strip holes, thereby reducing the frequency of cabinet maintenance while ensuring fresh air exchange efficiency. 8. This utility model, through the coordinated setting of positioning pins and springs, can realize the position adjustment and locking of the mesh cover relative to the arc-shaped guide plate, ensuring that the two form a stable connection structure; wherein, the arc-shaped guide plate is responsible for guiding the input of fresh air, and the mesh cover can flexibly adapt to the angle after the arc-shaped guide plate is rotated, continuously playing the function of dust blocking, which not only ensures the stability of the overall structure, but also enables each component to independently achieve the coordinated work of guiding fresh air exchange and filtering dust. 9. This utility model integrates a noise reduction structure in the outdoor fresh air introduction path: When sound waves enter the expansion chamber, part of them enter the inner cavity of the expansion chamber through the circular hole at the inlet guide pipe, and the other part is directly incident. Due to the difference in the propagation path, the two types of sound waves generate a phase difference with the reflected waves from the inner wall of the expansion chamber, and interference effect occurs in the cavity to achieve energy cancellation. At the same time, the circular hole at the inlet guide pipe disperses the high-speed airflow into multiple small airflows, reducing the turbulence intensity to suppress the regenerated noise generated by the airflow impact. The noise reduction target is achieved through the dual mechanism of sound interference and airflow optimization. 10. In this utility model, the inlet guide pipe is inserted into the expansion chamber to a depth of half the expansion chamber depth, and the outlet guide pipe is inserted into the expansion chamber to a depth of one-quarter of the expansion chamber depth. The staggered insertion structure under this ratio forms a sound wave reflection path difference, and the phase interference effect of sound waves with different paths is used to enhance the energy cancellation effect, thereby achieving better noise reduction performance. XI. This utility model sets a sound-absorbing and noise-reducing layer on the inner wall of the expansion chamber. Through the wrapping structure, it blocks noise from radiating outward on the one hand, and uses sound-absorbing materials to absorb high-frequency sound waves a second time on the other hand, further improving the broadband noise reduction performance of the noise reduction system. 12. In this utility model, the total area of ​​the circular holes accounts for 20%-30% of the total area of ​​the sidewalls of the inlet and outlet guide pipes. This perforation ratio design follows the Helmholtz resonance sound absorption principle: the perforated structure at this ratio forms a resonance system with the air layer behind the pipe. When the incident sound wave frequency is consistent with the system's natural frequency, the air column at the neck of the hole resonates and consumes sound energy through friction with the hole wall. At the same time, the perforation ratio parameter matches the micro-perforated plate sound absorption theory. By controlling the coupling relationship between the aperture and the perforation ratio, the structure forms a broadband sound absorption peak in the mid-to-high frequency band. Combined with the sound wave interference effect of the misaligned reflection structure, noise attenuation across the entire frequency band is achieved. Thirteen, in this utility model, the circular holes are arranged in a rectangular array with uniform holes. The center distance between adjacent holes is 2-3 times the hole diameter. This design is based on the sound absorption theory of micro-perforated plates and the Helmholtz resonance principle, which can avoid "acoustic short circuit" and form a resonator array to achieve wideband sound absorption. At the same time, based on the fluid dynamics boundary layer separation control principle, the airflow is discretized into laminar micro-airflows, reducing turbulence intensity, suppressing regenerated noise, and achieving dual noise reduction of "airflow diffusion-sound energy dissipation". 14. In this utility model, the inlet guide pipe and the outlet guide pipe are made of 2-3mm thick stainless steel or carbon steel metal plates. Based on material mechanics, this thickness can resist wind pressure and airflow impact, prevent deformation of the round hole, and ensure stable perforation rate. From an acoustic point of view, the high rigidity of the metal plate can suppress structural noise radiation, and together with the sound-absorbing layer, it can block the transmission of noise. Moreover, the corrosion-resistant material can adapt to the outdoor environment and ensure the long-term effectiveness of the sound-absorbing structure. 15. This utility model is equipped with a telescopic pipe that can be extended and retracted between the first air intake pipe and the second air intake pipe. Through its adaptive length adjustment, it can meet the positioning requirements of the cabinet at different wall installation distances, and realize flexible adaptation and precise fixation of the equipment installation position. Sixteen, this utility model sets a filter screen at the connection between the first air intake pipe and the external environment, and ensures that the air entering the room meets the air quality standards by filtering the outdoor air, thereby achieving effective control over the cleanliness of the introduced air. 17. This utility model uses components such as interfaces, arc grooves, and positioning blocks to form a detachable structure, enabling quick replacement and disassembly of the filter screen, effectively reducing the complexity of equipment maintenance and improving the convenience and sustainability of daily system use. 18. This utility model adopts an integrated design concept, integrating two sets of drawer-type storage structures and indoor fresh air exchange function: by deeply integrating the fresh air exchange system with the main structure of the cabinet, while meeting the traditional cabinet storage needs, the fresh air exchange function is concealed and embedded, forming a composite furniture device that combines storage and air exchange functions, achieving synergistic optimization of space utilization and functionality. 19. This utility model constructs an intelligent control system through a controller to achieve multi-dimensional precise regulation: closed-loop control of the temperature regulator module to achieve dynamic calibration of the fresh air intake temperature; start-stop control of the fan; real-time monitoring of oxygen content by the oxygen sensor to flexibly control the intake or shutdown of fresh air; start-stop control of the micro motor and the rotation direction of its output end to flexibly control the rotation state of the second platform relative to the first platform; control of the operation status of the wireless charger, etc. This control system achieves unified scheduling of hardware resources through a modular programming interface, and can automatically match the optimal operating mode according to indoor and outdoor environmental parameters to achieve synergistic optimization of energy efficiency and comfort. In summary, by constructing an indoor-outdoor air circulation system, the present utility model solves the problem of lack of fresh air in traditional purification and improves comprehensive purification capacity; adjusts the temperature of fresh air through the intelligent temperature control module, avoids indoor temperature changes and improves comfort; meets the requirements of oxygen supply to the bed area and whole-house ventilation through the flexible air guide function; through the angle adjustment mechanism, it avoids direct blowing when supplying air to the bed and improves ventilation efficiency when the air guide deviates; uniformly controls multiple sets of air guide components through the synchronous adjustment mechanism, which improves convenience and consistency; drives and locks the air guide components through the linkage component, realizes integrated control and simplifies operation; ensures fresh air introduction, intercepts dust and reduces maintenance through the slidable embedded mesh structure; enables the air guide component and the dust-proof component to function in coordination through the locking structure; reduces operating noise through sound wave interference and airflow dispersion of the noise reduction structure; enhances sound wave interference and improves noise reduction performance through the staggered insertion design; blocks noise and absorbs high-frequency sound waves and expands noise elimination capacity through the wrapping of the inner wall sound-absorbing layer; achieves full-frequency noise reduction based on resonance and micro-perforated plate theory through the optimization of perforation rate and aperture; avoids acoustic short-circuit and reduces turbulence and achieves double noise reduction through rectangular array hole arrangement; ensures structural strength, suppresses noise and adapts to outdoor environments through the material selection and thickness design of metal plates; adapts to different installation distances and improves installation flexibility through the telescopic structure; ensures the cleanliness of introduced air through the filter device; realizes rapid replacement of the filter and reduces maintenance difficulty through the detachable structure; integrates storage and ventilation functions and optimizes space utilization through the integrated design; realizes multi-parameter linkage regulation through the intelligent control system, matches the optimal mode, and achieves the coordinated optimization of energy saving and comfort. Description of Drawings

[0016] Figure 1 is a structural schematic diagram of the cabinet in Embodiment 1 of the present utility model; Figure 2 is a structural schematic diagram of the wireless charger in Embodiment 1 of the present utility model; Figure 3 is Figure 2 an enlarged view of part A; Figure 4 is a structural schematic diagram of the drawer in Embodiment 1 of the present utility model; Figure 5 is a top view of the telescopic pipe in Embodiment 1 of the present utility model; Figure 6 is a rear sectional view of the cabinet in Embodiment 1 of the present utility model; Figure 7 is a rear structural schematic diagram of the expansion chamber in Embodiment 1 of the present utility model; Figure 8 is a rear structural schematic diagram of the rack in Embodiment 1 of the present utility model; Figure 9 is Figure 8 an enlarged view of part B; Figure 10for Figure 8 Enlarged view of point C; Figure 11 This is a schematic diagram of the structure of the movable frame in Embodiment 1 of this utility model; Figure 12 This is a schematic diagram of the arc-shaped guide plate in Embodiment 1 of this utility model; Figure 13 This is a schematic diagram of the structure of the third ventilation pipe in Embodiment 1 of this utility model; Figure 14 This is a schematic diagram of the inlet guide tube in Embodiment 1 of this utility model; Figure 15 This is a schematic cross-sectional view of the sound-absorbing and noise-reducing layer in Embodiment 1 of this utility model; Figure 16 for Figure 13 Enlarged view of point D; Figure 17 This is a schematic diagram of the structure of the first partition in Embodiment 1 of this utility model; Figure 18 This is a schematic diagram of the structure of the fourth partition in Embodiment 1 of this utility model; Figure 19 This is a control flowchart of the controller in Embodiment 1 of this utility model; Figure 20 This is a schematic diagram of the structure of the first platform in Embodiment 2 of this utility model; Figures 1 to 20 In the middle, 1. Cabinet, 2. First partition, 3. Second partition, 4. Third partition, 5. Fourth partition, 6. Fifth partition, 7. Ventilation strip hole, 8. Mounting block, 9. Rotating rod, 10. Drive rod, 11. Arc-shaped guide plate, 12. Vertical baffle, 13. Mesh cover, 14. Positioning pin, 15. Spring, 16. Gear, 17. Rack, 18. Moving frame, 19. Limiting block, 20. Connecting seat, 21. Threaded rod, 22. Nut, 23. Hand lever, 24. Through groove, 25. First air intake pipe, 26. Telescopic pipe, 27. Second air intake pipe, 28. Fan, 29. Expansion chamber 30. First ventilation pipe; 31. Temperature regulator; 32. Second ventilation pipe; 33. Third ventilation pipe; 34. Sound-absorbing and noise-reducing layer; 35. Inlet guide pipe; 36. Outlet guide pipe; 37. Circular hole; 38. Interface; 39. Arc groove; 40. Filter screen; 41. Positioning block; 42. Controller; 43. Oxygen sensor; 44. Support arm; 45. First platform; 46. Second platform; 47. Micro motor; 48. Rotating shaft; 49. First connecting block; 50. Second connecting block; 51. Divider strip; 52. Drawer; 53. Slide bar; 54. Slide groove; 55. Wireless charger. Detailed Implementation

[0017] The following are specific implementation cases and appendices. Figures 1 to 5The present invention will be further described below, but the present invention is not limited to these embodiments.

[0018] Example 1 Main references Figures 1 to 19 As shown, a bedside table with a fresh air system includes a cabinet body 1, and further includes: a first partition 2, a fourth partition 5, a fifth partition 6, a ventilation strip 7, a second air intake duct 27, a fan 28, a first ventilation pipe 30, a temperature regulator 31, a second ventilation pipe 32, and a third ventilation pipe 33. The first partition 2 is installed vertically inside the cabinet body 1, and is parallel to the rear side of the inner wall of the cabinet body 1. The fourth partition 5 and the fifth partition 6 are both installed along the front-rear direction on the front side wall of the first partition 2, and the fourth partition 5 and the fifth partition 6 form an inner ventilation system for fresh air to enter. The cavity; multiple sets of ventilation strip holes 7 are provided, and the multiple sets of ventilation strip holes 7 are respectively opened through the fifth partition plate 6; the second air intake pipe 27 is installed at the bottom of the left side wall of the cabinet 1 and is connected to the inner cavity formed by the cabinet 1 and the first partition plate 2; the fan 28 is installed in the inner cavity between the cabinet 1 and the first partition plate 2, and one end of the fan 28 is connected to the second air intake pipe 27; the fan 28 is a commercially available general-purpose fan, which can draw air from the outdoor environment connected by the first air intake pipe 25 to the fan 28 and deliver it to the expansion chamber 29. In addition, in order to meet the requirements of noise reduction... For environmental requirements, the fan 28 can be a low-noise, noise-reducing fan available on the market, as long as it meets the usage requirements; no further details or limitations will be provided here. The first ventilation pipe 30 is connected to the other end of the fan 28, and the first ventilation pipe 30, temperature regulator 31, second ventilation pipe 32, and third ventilation pipe 33 are sequentially connected, with both ends of the third ventilation pipe 33 extending into the inner cavity formed by the fourth partition 5 and the fifth partition 6, respectively. The temperature regulator 31 is a commercially available model that can adjust the temperature according to the temperature of the air entering through the first intake pipe 25. The temperature of the air transported by the first ventilation pipe 30, for example, in winter, when the cold outdoor air finally enters the temperature regulator 31 through the first air intake pipe 25, the temperature regulator 31 converts the cold outdoor air into hot air that meets the indoor temperature, thus achieving fresh air exchange while meeting the indoor ambient temperature. Conversely, in summer, the hot outdoor air is converted into cold air that meets the indoor temperature through the action of the temperature regulator 31. The temperature regulator 31 is a commercially available and mature device that meets the above-mentioned usage requirements, and will not be elaborated or limited here.

[0019] This invention constructs an intelligent temperature control module through a temperature regulator 31 to adjust the temperature of the fresh air introduced into the room, ensuring that its temperature is highly compatible with the indoor environment. This setting effectively avoids the problem of sudden changes in indoor temperature caused by the direct replacement of hot and cold air in traditional fresh air exchange, improves human comfort, and achieves dual optimization of fresh air exchange and temperature control.

[0020] This utility model uses components such as a fan 28, a first ventilation pipe 30, a second ventilation pipe 32, and a third ventilation pipe 33 to introduce fresh outdoor air into the room through ventilation strip holes 7, thus constructing an indoor and outdoor air circulation system. This effectively solves the air quality problem caused by lack of ventilation and significantly improves the overall purification capacity.

[0021] Main references Figure 1 , Figures 7 to 9 As shown, a fresh air ventilation guide unit is provided above the ventilation strip hole 7. The fresh air ventilation guide unit includes multiple sets of guide components. Each set of guide components includes: mounting block 8, rotating rod 9, drive rod 10, arc-shaped guide plate 11, and gear 16. There are two mounting blocks 8, and the two mounting blocks 8 are installed on the upper surface of the fifth partition 6 in a corresponding manner. The rotating rod 9 is rotatably installed at the two mounting blocks 8. There are two drive rods 10, and one end of the two drive rods 10 is fixedly installed at the front and rear ends of the rotating rod 9, respectively. The arc-shaped guide plate 11 is fixedly installed at the other end of the two drive rods 10, and the arc-shaped guide plate 11 is arc-shaped. The gear 16 is fixedly installed at the rear end of the rotating rod 9.

[0022] This invention features a fresh air ventilation guide function at the ventilation slot 7, which can flexibly adjust the direction of fresh air entering the room to meet the differentiated air supply needs of being near or away from the bed. When fresh air is blown towards the bed, it can specifically provide high concentrations of oxygen to the human body, which is especially suitable for scenarios where the indoor carbon dioxide concentration is too high in the morning and there is an urgent need to increase the oxygen content. When the airflow is blown away from the bed, it can achieve air replacement of the entire room environment, effectively balancing the functional needs of local oxygen supply and overall fresh air exchange.

[0023] Main references Figure 9 and Figure 12 As shown, each guide assembly also includes: a vertical baffle 12, which is fixed and vertically installed on the fifth partition 6, and the vertical baffle 12 is located on the left side of the ventilation strip hole 7. The arc-shaped guide plate 11 is rotated relative to the vertical baffle 12. By controlling the rotation of the arc-shaped guide plate 11 to cover the right side of the vertical baffle 12, the ventilation direction of the air outlet of the ventilation strip hole 7 can be adjusted.

[0024] This invention allows for adjustment of the rotation angle of the arc-shaped guide plate 11 relative to the vertical baffle 12: when fresh air needs to be blown towards the bed, the arc-shaped guide plate 11 rotates towards the bed, increasing the area of ​​air intake at the ventilation slot 7, thus meeting the fresh air delivery needs of the bed area while preventing airflow from blowing directly onto the head of the bed and causing discomfort to the human body; when fresh air needs to be blown away from the bed, the arc-shaped guide plate 11 is in a more open state, enabling the introduction of a large flow of outdoor fresh air, thereby improving the efficiency of indoor and outdoor fresh air exchange.

[0025] Main references Figure 6 , Figures 13 to 15 As shown, a noise reduction assembly is provided between the fan 28 and the first ventilation pipe 30. The noise reduction assembly includes: an expansion chamber 29, a sound-absorbing and noise-reducing layer 34, an inlet guide pipe 35, an outlet guide pipe 36, and a circular hole 37. The expansion chamber 29 is connected between the fan 28 and the first ventilation pipe 30. The sound-absorbing and noise-reducing layer 34 is installed on the inner wall of the expansion chamber 29. The present invention provides a sound-absorbing and noise-reducing layer 34 on the inner wall of the expansion chamber 29. Through the wrapping structure, it blocks noise from radiating outward on the one hand, and uses sound-absorbing materials to absorb high-frequency sound waves secondaryly on the other hand, further improving the broadband noise reduction performance of the noise reduction system. Multiple inlet guide pipes 35 and outlet guide pipes 36 are equidistantly arranged along the inner circumference of the expansion chamber 29, and the inlet guide pipes 35 and outlet guide pipes 36 are set with a staggered insertion structure. The circular holes 37 are equidistantly opened on the inlet guide pipes 35 and outlet guide pipes 36. In this utility model, the inlet guide pipe 35 and the outlet guide pipe 36 are made of 2-3mm thick stainless steel or carbon steel metal plates. Based on material mechanics, this thickness can resist wind pressure and airflow impact, prevent the round hole 37 from deforming, and ensure stable perforation rate. From an acoustic point of view, the high rigidity of the metal plate can suppress structural noise radiation, and together with the sound-absorbing layer, it can block the transmission of noise. Moreover, the corrosion-resistant material can adapt to the outdoor environment, ensuring the long-term effectiveness of the sound-absorbing structure.

[0026] Specifically, the sound-absorbing and noise-reducing layer 34 is a PET polyester fiber-phase change material composite sound-absorbing layer. Its base layer is a 15-20mm thick PET polyester fiber felt with a density of 80-100kg / m³, embedded with a 5-8mm thick phase change material. In this embodiment, the phase change material is octadecane, microcapsules with a phase change temperature of 25-30℃, and a perforated metal mesh covering the surface with a perforation rate of 25%. The interconnected pores between the PET polyester fibers generate viscous loss for mid-to-high frequency sound waves (800-5000Hz), with a sound absorption coefficient of approximately 0.6-0.8; the fiber elasticity can suppress vibrations caused by airflow pulsation within the pipe. Under the action of sound waves, the phase change material microcapsules undergo a solid-liquid phase change due to temperature fluctuations, absorbing / releasing latent heat, and dissipating sound energy through heat dissipation. Other noise-reducing and sound-absorbing materials can also be used in the sound-absorbing and noise-reducing layer 34 as needed, which will not be elaborated or limited here.

[0027] This invention integrates a noise reduction structure into the outdoor fresh air introduction path: when sound waves enter the expansion chamber 29, part of them enter the inner cavity of the expansion chamber 29 through the circular hole 37 at the inlet guide pipe 35, and the other part is directly incident. Due to the difference in the propagation path, the two types of sound waves generate a phase difference with the reflected waves from the inner wall of the expansion chamber 29, and interference effect occurs in the cavity to achieve energy cancellation. At the same time, the circular hole 37 at the inlet guide pipe 35 disperses the high-speed airflow into multiple small airflows, reducing the turbulence intensity to suppress the regenerated noise generated by the airflow impact. The noise reduction target is achieved through the dual mechanism of sound interference and airflow optimization.

[0028] Main references Figure 14 and Figure 15 As shown, the inlet guide pipe 35 is inserted into the expansion chamber 29 to a depth of half the depth of the expansion chamber 29, and the outlet guide pipe 36 is inserted into the expansion chamber 29 to a depth of one-quarter of the depth of the expansion chamber 29. The staggered insertion structure under this ratio forms a sound wave reflection path difference, and the phase interference effect of sound waves with different paths is used to enhance the energy cancellation effect, thereby achieving better noise reduction performance. The total area of ​​the circular holes 37 accounts for 20%-30% of the total area of ​​the sidewalls of the inlet guide pipe 35 and the outlet guide pipe 36. This perforation ratio design follows the Helmholtz resonance sound absorption principle: taking a guide pipe with a diameter of 100mm and a length of 500mm as an example, its total perforation area is 3140-4710mm2 (corresponding to 400-750 φ3mm holes). At this time, the perforated structure and the air layer behind the pipe form a resonant system. When the incident sound wave frequency is consistent with the system's natural frequency, the air column at the neck of the hole resonates and consumes sound energy through friction with the hole wall. At the same time, the perforation ratio parameter matches the micro-perforated plate sound absorption theory. By controlling the coupling relationship between the hole diameter (3-5mm) and the perforation ratio, this structure can achieve the desired sound absorption. A wideband sound absorption peak is formed in the mid-to-high frequency range (500-6300Hz), which, combined with the acoustic interference effect of the staggered reflection structure, achieves noise attenuation across the entire frequency band. Furthermore, the circular holes 37 are uniformly arranged in a rectangular array, with the center-to-center distance between adjacent holes being 2-3 times the hole diameter. In this embodiment, the hole diameter is φ3mm, corresponding to a spacing of 6-9mm. This design is based on the sound absorption theory of micro-perforated plates and the Helmholtz resonance principle, which can avoid "acoustic short circuit" and form a resonator array to achieve wideband sound absorption of 500-4000Hz. At the same time, based on the fluid dynamics boundary layer separation control principle, the airflow is discretized into laminar micro-airflows, reducing turbulence intensity and suppressing regenerated noise, achieving dual noise reduction of "airflow diffusion-acoustic energy dissipation".

[0029] Main references Figure 8 and Figure 10 As shown, the fresh air ventilation guiding unit also includes a dust-blocking component, which includes: a mesh cover 13, a positioning pin 14, and a spring 15. The mesh cover 13 is slidably embedded in the inner cavity of the arc-shaped guide plate 11. The mesh cover 13 has uniform holes and is set to an arc shape that fits the curvature of the arc-shaped guide plate 11. The positioning pin 14 is slidably inserted into the inner cavity of the arc-shaped guide plate 11, and the bottom end of the positioning pin 14 is slidably embedded in the hole of the mesh cover 13. The spring 15 is sleeved on the positioning pin 14, and the two ends of the spring 15 are respectively connected to the outer wall of the positioning pin 14 and the outer wall of the arc-shaped guide plate 11.

[0030] This invention features a sliding, embedded design within each set of arc-shaped guide plates 11, equipped with a mesh cover 13. This structure ensures smooth airflow while efficiently intercepting dust through its mesh structure, effectively preventing outdoor dust from directly entering the cabinet 1 through the open ventilation slots 7. This reduces the frequency of maintenance for the cabinet 1 while maintaining efficient air exchange. Through the coordinated arrangement of positioning pins 14 and springs 15, the position of the mesh cover 13 relative to the arc-shaped guide plates 11 can be adjusted and locked, ensuring a stable connection between the two. The arc-shaped guide plates 11 guide the inflow of fresh air, while the mesh cover 13 flexibly adapts to the angle of the rotating arc-shaped guide plates 11, continuously providing dust protection. This ensures the stability of the overall structure while allowing each component to independently achieve coordinated operation of fresh air exchange guidance and dust filtration.

[0031] Main references Figure 8 , Figure 9 , Figure 11 As shown, each group of guide components is driven by a drive component, which includes a rack 17, a moving frame 18, and a limiting block 19. The rack 17 is horizontally positioned below the gear 16 and meshes with the gear 16. The moving frame 18 is fixedly installed on the lower surface of the rack 17. There are two limiting blocks 19, which are fixedly installed on the rear side wall of the first partition 2. The moving frame 18 slides horizontally through the side wall of the limiting block 19.

[0032] This invention achieves synchronous adjustment of the rotation angle of multiple sets of arc-shaped guide plates 11 corresponding to multiple sets of ventilation slots 7 through the coordinated operation of rack 17 and multiple sets of gears 16. This mechanism eliminates the need to adjust the fresh air intake at each ventilation slot 7 individually. By uniformly controlling the rotation angle of multiple sets of arc-shaped guide plates 11, it not only significantly improves the intelligence and convenience of adjustment and reduces operation steps, but also ensures the consistency of the rotation angle of each set of arc-shaped guide plates 11 after adjustment, thus achieving coordinated control of fresh air exchange in multiple areas.

[0033] Main references Figure 8 and Figure 11As shown, a locking assembly is provided on the rack 17. The locking assembly includes: a second partition 3, a third partition 4, a through groove 24, a connecting seat 20, a threaded rod 21, a nut 22, and a lever 23. The second partition 3 and the third partition 4 are respectively installed in the space between the rear side wall of the first partition 2 and the cabinet 1, and the third partition 4 is flush with the upper surface of the cabinet 1. The driving assembly is located in the space between the third partition 4 and the second partition 3. The through groove 24 is opened horizontally through the third partition 4. One end of the connecting seat 20 is fixedly connected to the rack 17. The second ventilation pipe 32 is vertically and fixedly installed at the other end of the connecting seat 20. The threaded rod 21 slides vertically through the inner cavity of the third partition 4, and the upper half of the threaded rod 21 is provided with external threads, while the lower half is a smooth rod. The nut 22 is threaded onto the upper half of the threaded rod 21. The lever 23 is fixedly installed at the top of the lever 23.

[0034] This utility model, through the coordinated operation of components such as the connecting seat 20, threaded rod 21, handle 23, and through groove 24, can drive the rack 17 above the cabinet 1 to generate displacement, thereby driving all the arc-shaped guide plates 11 to synchronously complete the rotation angle adjustment. It can also lock the position of the threaded rod 21 after adjustment with the help of the nut 22, so as to lock the position of the rack 17 after displacement. It can perform integrated control of multiple sets of arc-shaped guide plates 11, and the operation process is simple and efficient, reducing the complexity of multi-component linkage adjustment.

[0035] Main references Figure 13 and Figure 16As shown, a telescopic filter assembly is provided at the left end of the second air intake pipe 27. The telescopic filter assembly includes: a telescopic pipe 26, a first air intake pipe 25, an interface 38, an arc-shaped groove 39, a filter screen 40, and a positioning block 41. The telescopic pipe 26 is connected to the left end of the second air intake pipe 27. This utility model configures a telescopic pipe 26 that can be telescopically adjusted between the first air intake pipe 25 and the second air intake pipe 27. Through its adaptive length adjustment, it can meet the positioning requirements of the cabinet 1 at different wall installation distances, realizing flexible adaptation and precise fixation of the equipment installation position. The left end of the first air intake pipe 25 is connected to the left end of the telescopic pipe 26. The interface 38 is fixedly installed on the left side of the first air intake pipe 25. At the end, an arc-shaped groove 39 is formed on the interface 38, and the length of the arc-shaped groove 39 is greater than half of the circumference of the interface 38; a filter screen 40 is slidably inserted into the inner cavity of the arc-shaped groove 39; this utility model sets a filter screen 40 at the connection between the first air intake pipe 25 and the external environment, and through the filtration of outdoor air, ensures that the air entering the room meets the air quality standards, and achieves effective control over the cleanliness of the introduced air; a positioning block 41 is detachably positioned at the top of the interface 38. Specifically, one end of the positioning block 41 is rotatably connected to the upper surface of the interface 38, and the other end is threadedly connected to the upper surface of the interface 38 through a positioning nut, and the positioning block 41 spans the top of the arc-shaped groove 39 to block the top of the arc-shaped groove 39. This utility model, through the interface 38, arc-shaped groove 39, positioning block 41 and other components, forms a detachable structure, realizing the function of quick replacement and disassembly of the filter screen 40, effectively reducing the complexity of equipment maintenance, and improving the convenience and sustainability of daily use of the system. The telescopic pipe 26 is a commercially available, general-purpose pipe that can be telescopically adjusted. It can expand and contract radially while ensuring a sealed connection. It is made of common materials and models and meets the requirements of this application. No further details or limitations will be provided here.

[0036] Main references Figure 1 , Figure 4 , Figures 17 to 19As shown, this solution also includes: a controller 42, an oxygen sensor 43, a support arm 44, a first platform 45, a second platform 46, a micro motor 47, a rotating shaft 48, a first connecting block 49, and a second connecting block 50. The controller 42 is installed on the top of the front side wall of the cabinet 1; the oxygen sensor 43 is installed on the upper surface of the third partition 4; two support arms 44 are provided, and the two support arms 44 are respectively vertically and fixedly installed on the left and right sides of the upper surface of the cabinet 1; the first platform 45 is fixedly installed on the two support arms 44; the second platform 46 is rotatably set on the front side of the first platform 45 through a pin shaft; the micro motor 47 is installed on the right side wall of the first platform 45 through a motor frame; the rotating shaft 48 is installed on the output end of the micro motor 47; two first connecting blocks 49 are provided, and the two first connecting blocks 49 are respectively fixedly installed on the side wall of the second platform 46, and the rotating shaft 48 is fixedly connected to the two first connecting blocks 49; the second connecting block 50 is fixedly installed on the first platform 45, and the rotating shaft 48 rotates through the side wall of the second connecting block 50.

[0037] Main references Figure 1 , Figure 4 As shown, this solution also includes: a divider 51, a drawer 52, a slide bar 53, a slide groove 54, and a wireless charger 55. The divider 51 is fixedly installed on the front side wall of the cabinet 1; there are two drawers 52, and the two drawers 52 are slidably embedded in the inner cavity of the cabinet 1; there are two slide bars 53, and the two slide bars 53 are fixedly installed on the left and right side walls of the drawers 52 respectively; there are two slide grooves 54, and the two slide grooves 54 are fixedly installed on the left and right sides of the inner side wall of the cabinet 1, and the slide bars 53 are slidably embedded in the inner cavity of the slide grooves 54; the wireless charger 55 is fixedly installed on the first platform 45.

[0038] In this utility model, the normal bedside table function is achieved through components such as drawer 52, and it also has a fresh air exchange system. It adopts an integrated design concept, integrating two sets of drawer-type storage structures and indoor fresh air exchange function: by deeply integrating the fresh air exchange system with the main structure of the cabinet 1, while meeting the traditional storage needs of the cabinet 1, the fresh air exchange function is concealed and embedded, forming a composite furniture device that combines storage and air exchange functions, achieving synergistic optimization of space utilization and functionality.

[0039] The controller 42 is electrically connected to the fan 28, temperature regulator 31, oxygen sensor 43, micro motor 47, and wireless charger 55. This invention constructs an intelligent control system through the controller 42, achieving multi-dimensional precise regulation: closed-loop control of the temperature regulator 31 to dynamically calibrate the temperature of the incoming fresh air; start / stop control of the fan 28; real-time monitoring of oxygen content by the oxygen sensor 43 to flexibly control the flow of fresh air; start / stop and output rotation direction control of the micro motor 47 to flexibly control the rotation state of the second platform 46 relative to the first platform 45; and control the operation of the wireless charger 55. This control system achieves unified scheduling of hardware resources through a modular programming interface, automatically matching the optimal operating mode based on indoor and outdoor environmental parameters to achieve synergistic optimization of energy efficiency and comfort. The controller 42 is a commercially available controller model, a digital computing electronic system specifically designed for industrial applications. It employs a programmable memory that stores instructions for performing logical operations, sequential control, timing, counting, and arithmetic operations. It controls various types of mechanical equipment or production processes through digital or analog input / output. It uses a commercially available, mature model that meets the requirements of this application for controlling other components for temperature control and start / stop adjustments, etc., and will not be elaborated upon or limited here. The oxygen sensor 43 uses a commonly available commercial model that can monitor the oxygen content in the surrounding environment in real time and transmit the information to the controller 42 for processing. The controller 42 can preset the oxygen threshold of the oxygen sensor 43. When the threshold exceeds this preset range, the controller 42 controls the fan 28 to automatically start to achieve fresh air exchange. This is existing technology, and it meets the above-mentioned usage requirements, and will not be elaborated upon or limited here. The micro motor 47 is a commonly available commercial micro motor that is reversible, meaning its output can be driven in either the forward or reverse direction according to usage requirements. It only needs to meet the usage requirements, and its model will not be elaborated upon or limited here. The wireless charger 55 is a commercially available and mature model of wireless charger, which can meet the wireless charging needs of electronic products, and will not be elaborated or limited here.

[0040] In this embodiment, the second platform 46 is flipped upward relative to the first platform 45. In this state, the second platform 46 does not obstruct the fresh air exchange at the ventilation strip hole 7.

[0041] The working principle of a bedside table with a fresh air system in this embodiment is as follows: When the oxygen sensor 43 detects that the indoor oxygen concentration is lower than the set threshold, it immediately transmits the sensing signal to the controller 42 for data processing. The controller 42 triggers the fan 28 and the temperature regulator 31 to start according to the preset control logic. After the fan 28 starts running, it creates negative pressure and draws outdoor air into the expansion chamber 29 through the guide channel composed of the first air intake pipe 25, the telescopic pipe 26, and the second air intake pipe 27. After noise reduction processing by the Helmholtz resonance and micro-perforated plate composite structure in the expansion chamber 29, the air is delivered to the temperature regulator 31. The temperature regulator 31 adjusts the heating or cooling power based on the PID control algorithm to keep the temperature difference between the air and the indoor environment within ±2℃. The air that has completed temperature control then passes through the second ventilation pipe 32 and the third ventilation pipe 33, and finally through the ventilation strip hole 7 at the top of the fourth partition 5, and is directionally delivered to the indoor space to achieve rapid replenishment of oxygen content. When adjusting the angle of the arc-shaped guide plate 11 relative to the vertical baffle 12, the nut 22 is rotated to move it upward along the external thread structure of the threaded rod 21, releasing the locking constraint of the nut 22 on the threaded rod 21 at the third partition 4. Subsequently, the drive lever 23 drives the threaded rod 21, the connecting seat 20, and the rack 17 to move synchronously in the horizontal direction. Based on the thread meshing transmission characteristics of the rack 17 and multiple gears 16, the multiple gears 16 are made to rotate synchronously and in the same direction, thereby realizing the synchronous rotation of multiple sets of rotating rods 9 and drive rods. 10. The synchronous rotation adjustment of the arc-shaped guide plate 11 completes the angle adjustment of multiple sets of arc-shaped guide plates 11 relative to the corresponding vertical baffle 12; this angle adjustment can change the air supply direction at the ventilation strip hole 7 to meet the different working conditions such as avoiding direct blowing or improving ventilation efficiency; after the adjustment is completed, the nut 22 is rotated again to make it fit against the upper surface of the third partition 4, and the position of the threaded rod 21 at the third partition 4 is re-locked through the threaded fastening action, and the positions of the rack 17, gear 16, and arc-shaped guide plate 11 after adjustment are fixed simultaneously; In the sound wave propagation path, efficient noise reduction is achieved through the synergistic effect of multiple noise reduction mechanisms: the staggered insertion structure of the inlet guide pipe 35 and outlet guide pipe 36 in the expansion chamber 29 creates a sound wave reflection path difference at different depths. Combined with the phase difference between the sound wave transmission and the direct wave generated by the perforated structure of the circular hole 37, an interference effect occurs in the cavity to cancel out the sound energy. The circular hole 37 has a perforation rate of 20%-30%, with uniformly arranged holes in a rectangular array and a hole spacing of 2-3 times the hole diameter. Based on the Helmholtz resonance sound absorption principle and the micro-perforated plate sound absorption theory, the perforated structure and the air layer form a resonance system. Through the resonance of the air column at the hole neck and the viscous loss in the micropores, broadband sound absorption is achieved in the 500-6300Hz frequency band. At the same time, the circular hole 37 discretizes the high-speed airflow into laminar micro-airflows. Based on the fluid dynamics boundary layer separation control principle, the turbulence intensity is reduced, and the airflow regeneration noise is suppressed. In addition, the sound-absorbing and noise-reducing layer 34 on the inner wall of the expansion chamber 29 is a wrap-around sound-absorbing structure that absorbs high-frequency sound waves in a secondary manner and blocks external noise radiation; the inlet guide pipe 35 and the outlet guide pipe 36 are made of 2-3mm thick stainless steel or carbon steel metal plates, which suppress structural noise with high rigidity, and block noise propagation in conjunction with the sound-absorbing layer. Finally, through the multi-dimensional synergy of sound interference, broadband sound absorption, airflow optimization and structural noise reduction, effective attenuation of noise across the entire frequency band is achieved. In addition, when the arc-shaped guide plate 11 is adjusted to the left side wall of the vertical baffle 12, that is, when the arc-shaped guide plate 11 no longer guides fresh air above the ventilation strip hole 7, in order to prevent dust from entering the cabinet 1 at the ventilation strip hole 7, the mesh cover 13 can be adjusted to extend out of the arc-shaped guide plate 11 to provide dust protection and cover the area directly above the ventilation strip hole 7. After adjustment, the positioning pin 14 is reinserted into the hole at the mesh cover 13 to achieve the positioning of the mesh cover 13 after adjustment. In addition, the micro motor 47 can drive the rotating shaft 48, the first connecting block 49, and the second platform 46 to rotate synchronously, thereby enabling the second platform 46 to rotate relative to the first platform 45. When the second platform 46 is adjusted to be on the same horizontal line as the first platform 45, an overall placement plane can be constructed. When the second platform 46 is adjusted to flip upward relative to the first platform 45, the space above the ventilation strip hole 7 and the mesh cover 13 can be in an open state, ensuring that the fresh air input at the ventilation strip hole 7 can smoothly perform targeted ventilation at the head of the bed or overall ventilation of the indoor environment. This utility model solves the problem of insufficient fresh air in traditional purifiers by constructing an indoor-outdoor air circulation system, thereby improving overall purification capabilities; it regulates the fresh air temperature through an intelligent temperature control module to avoid indoor temperature fluctuations and improve comfort; it meets the needs of oxygen supply to the bed area and ventilation throughout the room through a flexible guiding function; it avoids direct airflow when supplying air to the bed and improves ventilation efficiency when air is directed away from the bed; it unifies the control of multiple air guide components through a synchronous adjustment mechanism, improving convenience and consistency; it achieves integrated control and simplifies operation by driving and locking the air guide components through a linkage component; it ensures the introduction of fresh air and intercepts dust through a sliding embedded mesh structure, reducing maintenance; it allows the air guide and dustproof components to function synergistically through a locking structure; and it reduces operating noise through sound wave interference and airflow dispersion via a noise reduction structure. The staggered insertion design enhances sound wave interference and improves noise reduction performance; the inner wall sound-absorbing layer blocks noise and absorbs high-frequency sound waves, expanding the sound attenuation capability; through perforation rate and aperture optimization, full-band noise reduction is achieved based on resonance and micro-perforated plate theory; the rectangular array of holes avoids acoustic short circuits and reduces turbulence, achieving dual noise reduction; the selection and thickness design of metal plates ensures structural strength, suppresses noise, and adapts to outdoor environments; the telescopic structure adapts to different installation distances, improving installation flexibility; the filtration device ensures clean air intake; the detachable structure allows for quick filter replacement, reducing maintenance difficulty; the integrated design combines storage and ventilation functions, optimizing space utilization; and the intelligent control system enables multi-parameter linkage regulation, matching the optimal mode to achieve synergistic optimization of energy saving and comfort.

[0042] Example 2 Main references Figure 20 As shown, in this embodiment, the second platform 46 is on the same horizontal plane as the first platform 45. In this state, items can be placed on the second platform 46, which not only meets the needs of using a bedside table, but also enables the normal use of the indoor fresh air exchange function.

[0043] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0044] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0045] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0046] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0047] Unless otherwise stated, the term "multiple" means two or more.

[0048] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0049] The term "and / or" describes the relationship between objects, indicating that there can be three relationships. For example, A and / or B means: A or B, or A and B.

[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bedside table with a fresh air system, comprising a cabinet body (1), characterized in that: Also includes: The first partition (2) is installed vertically in the inner cavity of the cabinet (1), and the first partition (2) is arranged parallel to the rear side of the inner wall of the cabinet (1); The fourth partition (5) and the fifth partition (6) are installed on the front side wall of the first partition (2) along the front-back direction, and the fourth partition (5) and the fifth partition (6) form an inner cavity for fresh air to enter. Ventilation strip holes (7) are provided in multiple sets, and the multiple sets of ventilation strip holes (7) are respectively opened through the fifth partition plate (6); The second air intake pipe (27) is installed at the bottom of the left side wall of the cabinet (1) and is connected to the inner cavity formed by the cabinet (1) and the first partition (2); A fan (28) is installed in the cavity between the cabinet (1) and the first partition (2), and one end of the fan (28) is connected to the second air intake pipe (27); The first ventilation pipe (30), the temperature regulator (31), the second ventilation pipe (32), and the third ventilation pipe (33) are connected to the other end of the fan (28). The first ventilation pipe (30), the temperature regulator (31), the second ventilation pipe (32), and the third ventilation pipe (33) are sequentially connected. The two ends of the third ventilation pipe (33) extend into the inner cavity formed by the fourth partition (5) and the fifth partition (6), respectively.

2. A bedside table with a fresh air system according to claim 1, characterized in that: A fresh air ventilation guide unit is provided above the ventilation strip hole (7). The fresh air ventilation guide unit includes multiple sets of guide components, each set of guide components including: Mounting blocks (8), two mounting blocks (8) are provided, and the two mounting blocks (8) are installed on the upper surface of the fifth partition (6) in a front-to-back manner; Rotating rod (9), which is rotatably mounted on the two mounting blocks (8); Two drive rods (10) are provided, and one end of each drive rod (10) is fixedly installed at the front and rear ends of the rotating rod (9); An arc-shaped guide plate (11) is fixedly installed at the other end of the two drive rods (10), and the arc-shaped guide plate (11) is set to be arc-shaped; Gear (16), which is fixedly installed at the rear end of the rotating rod (9).

3. A bedside table with a fresh air system according to claim 2, characterized in that: Each set of the guiding components also includes: A vertical baffle (12) is fixed and vertically installed on the fifth partition (6), and the vertical baffle (12) is located to the left of the ventilation strip hole (7). The arc-shaped guide plate (11) is rotatably arranged above the vertical baffle (12).

4. A bedside table with a fresh air system according to claim 1, characterized in that: A noise reduction component is provided between the fan (28) and the first ventilation pipe (30), the noise reduction component including: An expansion chamber (29) is connected between the fan (28) and the first ventilation pipe (30); A sound-absorbing and noise-reducing layer (34) is installed on the circumferential inner wall of the expansion chamber (29); An inlet guide pipe (35) and an outlet guide pipe (36) are provided. Multiple inlet guide pipes (35) and outlet guide pipes (36) are provided at equal intervals along the inner circumference of the expansion chamber (29). The inlet guide pipes (35) and outlet guide pipes (36) are provided with a staggered insertion structure. The circular holes (37) are equidistantly opened on the inlet guide pipe (35) and the outlet guide pipe (36).

5. A bedside table with a fresh air system according to claim 4, characterized in that: The inlet guide pipe (35) is inserted into the expansion chamber (29) to a depth of half the depth of the expansion chamber (29), and the outlet guide pipe (36) is inserted into the expansion chamber (29) to a depth of one-quarter the depth of the expansion chamber (29); The total area of ​​the circular holes (37) accounts for 20%-30% of the total area of ​​the sidewalls of the inlet guide pipe (35) and the outlet guide pipe (36), and the circular holes (37) are arranged in a rectangular array with the center distance between adjacent holes being 2-3 times the hole diameter.

6. A bedside table with a fresh air system according to claim 2, characterized in that: The fresh air ventilation guiding unit also includes a dust-blocking component, which includes: The mesh cover (13) is slidably embedded in the inner cavity of the arc-shaped guide plate (11). The mesh cover (13) has uniform holes and is set to be arc-shaped to fit the curvature of the arc-shaped guide plate (11). Positioning pin (14), the positioning pin (14) is slidably inserted into the inner cavity of the arc-shaped guide plate (11), and the bottom end of the positioning pin (14) is slidably embedded in the hole of the mesh cover (13); Spring (15) is sleeved on the positioning pin (14), and the two ends of the spring (15) are respectively connected to the outer wall of the positioning pin (14) and the outer wall of the arc-shaped guide plate (11).

7. A bedside table with a fresh air system according to claim 2, characterized in that: Each group of guiding components is uniformly driven by a driving component, which includes: A rack (17) is horizontally positioned below the gear (16) and meshes with the gear (16). A movable frame (18) is fixedly installed on the lower surface of the rack (17); Limiting blocks (19), two limiting blocks (19) are provided, and the two limiting blocks (19) are respectively fixedly installed on the rear side wall of the first partition (2), and the moving frame (18) slides through the side wall of the limiting block (19) in the horizontal direction.

8. A bedside table with a fresh air system according to claim 7, characterized in that: The rack (17) is provided with a locking component, the locking component comprising: The second partition (3) and the third partition (4) are respectively installed in the space between the rear side wall of the first partition (2) and the cabinet (1), and the third partition (4) is flush with the upper surface of the cabinet (1). The drive assembly is located in the space between the third partition (4) and the second partition (3). A through groove (24) is formed horizontally through the third partition (4); Connecting seat (20), one end of which is fixedly connected to the rack (17); The threaded rod (21) and the second ventilation pipe (32) are vertically and fixedly installed at the other end of the connecting seat (20). The threaded rod (21) slides through the inner cavity of the third partition (4) in the vertical direction. The upper half of the threaded rod (21) is provided with external threads, and the lower half is provided with a smooth rod. Nut (22), the nut (22) being threaded onto the upper half of the threaded rod (21); Hand lever (23), the hand lever (23) is fixedly installed at the top of the hand lever (23).

9. A bedside table with a fresh air system according to claim 6, characterized in that: A telescopic filter assembly is provided at the left end of the second air intake pipe (27), the telescopic filter assembly comprising: Telescopic pipe (26), which is connected to the left end of the second air intake pipe (27); The first air intake pipe (25) is connected to the left end of the telescopic pipe (26); Interface (38), which is fixedly installed at the left end of the first air intake pipe (25); An arc-shaped groove (39) is formed on the interface (38), and the length of the arc-shaped groove (39) is greater than half of the circumference of the interface (38); A filter screen (40) is slidably inserted into the inner cavity of the arc-shaped groove (39); Positioning block (41), which is detachably positioned at the top of the interface (38).

10. A bedside table with a fresh air system according to claim 8, characterized in that: Also includes: The controller (42) is installed on the top of the front side wall of the cabinet (1); An oxygen sensor (43) is mounted on the upper surface of the third partition (4); Support arm (44), two support arms (44) are provided, and the two support arms (44) are respectively vertically and fixedly installed on the left and right sides of the upper surface of the cabinet (1); The first platform (45) is fixedly installed on the two support arms (44); The second platform (46) is rotatably mounted on the front side of the first platform (45); A micro motor (47) is mounted on the right side wall of the first platform (45) via a motor frame; A rotating shaft (48) is mounted on the output end of the micro motor (47); Two first connecting blocks (49) are provided. The two first connecting blocks (49) are respectively fixedly installed on the side wall of the second platform (46), and the rotating shaft (48) is fixedly connected to the two first connecting blocks (49). The second connecting block (50) is fixedly installed on the first platform (45), and the rotating shaft (48) rotates through the side wall of the second connecting block (50).

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