Air inlet assembly and ventilation device

Abstract

The application provides an air inlet assembly and a ventilation device. The air inlet assembly comprises a shell provided with an air inlet; a partition plate arranged in the shell and separating an inner part of the shell into a buffer cavity and a fan cavity in communication with each other, the air inlet being in communication with the fan cavity through the buffer cavity; and a sand discharging structure arranged at a sand discharging opening in a bottom surface of the buffer cavity. The air inlet assembly and the ventilation device provided by the application can effectively ensure the reliable operation of the air inlet assembly and overcome the need for manual disassembly of the ventilation device in the prior art, thereby reducing the cleaning difficulty and cost of the air inlet assembly.

Description

Technical Field

[0001] This invention relates to the field of ventilation structure technology, and in particular to an air intake component and a ventilation device. Background Technology

[0002] To address indoor air quality issues, an increasing number of buildings are installing ventilators to achieve indoor ventilation. The most common type of ventilator is the window ventilator, which provides fresh air to a room without opening the windows. Window ventilators are typically installed on building doors and windows. Due to space constraints, most window ventilators are currently non-powered (also known as natural ventilators), with a few being powered.

[0003] Whether it's a window-type non-powered ventilator or a powered ventilator, since they need to supply air into the room, they require an airflow channel for fresh outdoor air to flow into the room. A filter structure is installed in this airflow channel to filter the gas and prevent impurities and particles from entering the room. However, the filtration accuracy of existing filter structures is limited. Especially in environments such as high-altitude annular zones and high-altitude machine rooms, where the conditions are harsh, even with a filter structure, fine debris such as sand and dust will still accumulate inside the ventilator after prolonged operation. This debris will seriously affect the normal operation of the ventilator. Cleaning this debris requires disassembling the ventilator and removing the debris. Due to the harsh environment and thin air at high altitudes, maintenance of the ventilator is extremely difficult and costly, further increasing the difficulty of cleaning the accumulated debris and seriously affecting user comfort and experience. Summary of the Invention

[0004] In order to solve the technical problem that fine debris such as sand and dust accumulates inside the ventilator in the prior art, which affects the reliability and user experience of the ventilator, an air intake component and a ventilation device are provided, which have a buffer chamber to buffer the sand and dust and use a sand discharge port and sand discharge device to discharge it, thereby improving reliability and facilitating maintenance.

[0005] An air intake assembly, comprising:

[0006] A housing, on which an air inlet is provided;

[0007] A partition is disposed inside the housing, and the partition divides the interior of the housing into a buffer chamber and a fan chamber that are interconnected. The air inlet is connected to the fan chamber through the buffer chamber.

[0008] The sand discharge structure is provided at the sand discharge port on the bottom surface of the buffer cavity.

[0009] The sand discharge structure includes a sand discharge plate, which is movably disposed at the sand discharge port, and the sand discharge plate has a sand discharge state with the sand discharge port open and a closed state with the sand discharge port closed.

[0010] The sand discharge plate has a first edge and a second edge, the first edge is hinged to the sand discharge port, and when the sand discharge plate is in the closed state, the second edge abuts against the edge of the sand discharge port, and when the sand discharge plate is in the sand discharge state, a gap is formed between the second edge and the sand discharge port.

[0011] The sand discharge structure also includes a sand holding plate, which is disposed at the sand discharge port. When the sand discharge plate is in the closed state, the sand discharge plate and the sand holding plate together close the sand discharge port. When the sand discharge plate is in the sand discharge state, a gap is formed between the sand discharge plate and the sand holding plate.

[0012] When the sand discharge plate is in the closed state, the sand discharge plate and the sand holding plate together form a receiving groove, the opening of the receiving groove is connected to the buffer cavity, and the connection between the sand discharge plate and the sand holding plate is located at the lowest point of the receiving groove.

[0013] The sand-collecting plate is provided with a sealing structure. When the sand-discharging plate is in the closed state, the sand-discharging plate abuts against the sand-collecting plate through the sealing structure.

[0014] The sand discharge structure also includes a reset mechanism, which is disposed between the sand discharge plate and the housing, and the reset mechanism can switch the sand discharge plate to the closed state.

[0015] The reset mechanism includes an elastic element, one end of which is connected to the housing and the other end is connected to the sand discharge plate.

[0016] The air intake assembly also includes a first filter structure, which is detachably disposed at the air intake.

[0017] The air intake assembly also includes a rainproof structure, which is disposed at the air inlet and located on the side of the first filter structure away from the partition.

[0018] The air intake assembly also includes an air intake pipe, the first end of which is connected to the air inlet, and the second end is a free end, wherein the highest point of the end face of the second end is lower than the highest point of the end face of the first end.

[0019] The central axis of the air inlet pipe is arc-shaped, and the end face of the second end is inclined downward relative to the end face of the first end.

[0020] The air intake assembly also includes a second filter structure, which is disposed at the second end.

[0021] The air intake assembly also includes a base, and the housing is mounted on the ground via the base.

[0022] A ventilation device includes the aforementioned air intake assembly.

[0023] The air intake assembly and ventilation device provided by this invention utilize a partition to divide the interior of the housing into a buffer chamber and a fan chamber. The fan is located in the fan chamber, thereby creating a negative pressure in the buffer chamber and ultimately drawing in air from the air inlet to achieve air intake. After the gas flows into the buffer chamber, its velocity decreases, causing fine impurities such as sand and dust carried in the gas to fall and accumulate at the bottom of the buffer chamber under the action of gravity. When it is necessary to discharge the fine impurities accumulated inside the housing, the sand discharge structure can be controlled to open the sand discharge port, which can effectively ensure the reliable operation of the air intake assembly. At the same time, it can overcome the need for manual disassembly of the ventilator in the prior art, reducing the cleaning difficulty and cleaning cost of the air intake assembly. Moreover, due to the sealing of the sand discharge port by the sand discharge structure, external gas cannot enter the buffer chamber from the sand discharge port when the air intake assembly does not need to discharge sand, ensuring the reliable air intake of the air intake assembly. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the air intake assembly provided in an embodiment of the present invention;

[0025] Figure 2 A perspective view of the air intake assembly provided in an embodiment of the present invention;

[0026] Figure 3 A bottom view of the air intake assembly provided in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the air intake assembly without an air intake duct structure provided in an embodiment of the present invention;

[0028] Figure 5 A cross-sectional view of the air intake assembly provided in an embodiment of the present invention;

[0029] Figure 6 for Figure 5 A partial schematic diagram of point A;

[0030] Figure 7 A partial schematic diagram of the sand discharge plate, sand collection plate, and sealing structure provided in an embodiment of the present invention;

[0031] Figure 8 for Figure 5 A partial schematic diagram of point B;

[0032] In the picture:

[0033] 1. Shell; 11. Air inlet; 2. Partition; 12. Buffer chamber; 13. Fan chamber; 14. Sand discharge port; 3. Sand discharge structure; 4. First filter structure; 5. Rainproof structure; 6. Air inlet pipe; 7. Second filter structure; 31. Sand discharge plate; 32. Sand collection plate; 33. Receiving groove; 34. Sealing structure; 35. Reset mechanism; 8. Base. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.

[0035] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0036] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate for the embodiments of the invention described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0037] It should be noted that in the description of this invention, terms such as "upper," "lower," "left," "right," "inner," and "outer," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] Most existing window ventilators are non-powered ventilators (also known as natural ventilators), with a few being powered ventilators. Non-powered ventilators rely on air pressure differences for ventilation. Because they lack their own power source, their ventilation capacity is very limited, and the ventilation volume cannot be precisely controlled. Furthermore, their ventilation effect is significantly reduced when there is insufficient driving force for outdoor air to flow into the room (e.g., when the indoor exhaust system is not activated). While powered ventilators have their own power source, they are still limited by space and cannot simultaneously perform multiple functions such as filtration, humidification, dehumidification, and heating. Furthermore, regardless of whether it's a window-type non-powered ventilator or a powered ventilator, since they need to supply air into the room, they require an airflow channel for fresh outdoor air to enter the room. A filter structure is installed in this airflow channel to filter the gas and prevent impurities and particles from entering the room. However, the filtration accuracy of existing filter structures is limited. Especially in environments such as high-altitude annular zones and high-altitude machine rooms, where the conditions are harsh, even with a filter structure, fine debris such as sand and dust will still accumulate inside the ventilator after prolonged operation. This debris severely affects the normal operation of the ventilator. Cleaning this debris requires disassembling the ventilator and removing the internal debris. Due to the harsh environment and thin air at high altitudes, maintenance of the ventilator is extremely difficult and costly, further increasing the difficulty of cleaning the accumulated debris and seriously affecting user comfort and experience. Therefore, this application provides a... Figures 1 to 8The air intake assembly shown includes: a housing 1, on which an air inlet 11 is provided; a partition 2, which is disposed inside the housing 1 and divides the interior of the housing 1 into a buffer chamber 12 and a fan chamber 13 that are interconnected, and the air inlet 11 is connected to the fan chamber 13 through the buffer chamber 12; and a sand discharge structure 3, on which a sand discharge port 14 is provided on the bottom surface of the buffer chamber 12 and the sand discharge structure 3 is disposed at the sand discharge port 14. The interior of the housing 1 is divided into a buffer chamber 12 and a fan chamber 13 by a partition 2. The fan is located in the fan chamber 13, thereby creating a negative pressure in the buffer chamber 12. Air is then drawn in through the air inlet 11 to achieve air intake. After the gas flows into the buffer chamber 12, its velocity decreases, causing fine impurities such as sand and dust carried in the gas to fall and accumulate at the bottom of the buffer chamber 12 under the action of gravity. When it is necessary to discharge the fine impurities accumulated inside the housing 1, the sand discharge structure 3 can be controlled to open the sand discharge port 14. This effectively ensures the reliable operation of the air intake component and overcomes the need for manual disassembly of the ventilator in existing technologies, reducing the difficulty and cost of cleaning the air intake component. Moreover, because the sand discharge structure 3 seals the sand discharge port 14, external gas cannot enter the buffer chamber 12 through the sand discharge port 14 when the air intake component does not need to be discharged, ensuring the reliable air intake of the air intake component. This air intake component is placed outdoors and is itself protected against rain and sand. In low-altitude areas, this air intake component can introduce fresh air into the room, achieving a relatively balanced indoor and outdoor air temperature and airflow field. In extremely high-altitude areas, this air intake component not only introduces fresh air into the computer room but also, due to the extreme cold outdoors and the high temperature of the equipment inside the room caused by its own heat generation, it not only provides fresh air ventilation but also introduces cold outdoor air into the room to cool the equipment, reducing the energy consumption of indoor cooling equipment. Furthermore, in high-altitude areas, the thin air and harsh environments such as wind and sand make maintenance extremely difficult and costly. This air intake component is rainproof and windproof, reducing equipment failure rates and minimizing equipment maintenance.

[0040] The air intake assembly further includes a first filter structure 4, which is detachably mounted at the air inlet 11. The first filter structure 4 filters the air entering through the air inlet 11, thereby minimizing the entry of impurities into the buffer chamber 12 and ensuring the cleanliness of the air supplied to the room. Furthermore, the detachable nature of the first filter structure 4 allows for direct removal and cleaning when the air resistance exceeds a preset value. This overcomes the complex operation of disassembling the housing 1 and the first filter structure 4 in harsh environments for cleaning, effectively improving the user experience. Optionally, the first filter structure 4 can be slidably mounted at the air inlet 11, allowing for easy removal and installation by simply pulling or sliding it in without tools, making the operation flexible and convenient.

[0041] To introduce fresh outdoor air, the air intake assembly is located outdoors, delivering air indoors only through the air outlet on the fan chamber 13 and the air outlet duct connected to it. Therefore, in rainy conditions, rainwater can enter the air intake assembly, affecting its reliability (especially the fan inside the fan chamber 13). To address this, the air intake assembly also includes a rainproof structure 5, located at the air inlet 11, on the side of the first filter structure 4 furthest from the partition 2. The rainproof structure 5 blocks raindrops that may flow into the air inlet 11 (such as raindrops carried by the airflow at the air inlet 11), thereby improving the reliability of the air intake assembly. Figure 5 and Figure 8 As shown, the rainproof structure 5 is a louver structure, comprising multiple horizontally arranged louvers. Each louver is inclined relative to the horizontal plane, with the angle between the louvers and the horizontal plane ranging from 40° to 50°. At this angle, the louvers provide suitable resistance to airflow while effectively blocking raindrops. When the angle is less than 40°, the louvers' ability to block raindrops is weak. To achieve the same raindrop-blocking effect as when the angle is 40° to 50°, a large number of louvers would need to be added, resulting in increased wind resistance and reduced aesthetics. When the angle is greater than 50°, the louvers' ability to block raindrops increases, but at this point, wind resistance increases drastically, severely reducing the effective air intake area of ​​the air inlet 11 and affecting the air intake volume of the air intake assembly. Furthermore, considering the rainproof effect, air volume, and wind resistance, the ratio of the spacing between the louvers to the width of the louvers ranges from 1:1 to 1:3, preferably 1:2. At this point, the louvers are tilted, which does not completely block the air inlet 11. Instead, the airflow is directed upwards at an angle, and raindrops fall downwards along the louvers, ensuring both airflow volume and raindrop resistance. Specifically, the vertical upper part of the louvers effectively prevents rainwater from being drawn into the equipment, while the smooth lower part reduces resistance and increases airflow. When air passes through the louvers, their angle and area create resistance when fixed to the side of the equipment frame, directly reducing wind speed. Under certain conditions, lower wind speeds make it easier for dust and other debris to fall to the ground. Therefore, not only is rainwater blocked from entering the equipment, but dust is also dislodged, further improving air cleanliness. Then, the air passes through the first filter structure 4, minimizing the amount of impurities entering the buffer chamber 12 and improving the cleanliness and reliability of the air intake assembly.

[0042] To further improve the rainproof effect of the air intake assembly, the air intake assembly also includes an air intake pipe 6. The first end of the air intake pipe 6 is connected to the air inlet 11, and the second end is a free end, with the highest point of the second end's end face lower than the highest point of the first end's end face. Gas flows obliquely upwards through the second end and reaches the first end. At this point, raindrops carried within the gas will collect and drip off under the influence of gravity, reducing the amount of raindrops reaching the first end (air inlet 11), thereby further improving the rainproof effect of the air intake assembly. Figure 4 As shown in the figure, the central axis of the air inlet pipe 6 is arc-shaped, and the end face of the second end is inclined downward relative to the end face of the first end. Gas needs to flow along the arc of the air inlet pipe 6 through the second end, reducing the obstruction effect of the air inlet pipe 6 on the gas, while also maintaining the effect of gravity on raindrops in the gas. Furthermore, since water droplets on the rainproof structure 5 will drip downwards, when the air inlet pipe 6 is installed, the water droplets will drip into the air inlet pipe 6. At this time, a drainage hole is provided at the second end of the air inlet pipe 6. The drainage hole is used to discharge the water droplets obstructed by the rainproof structure 5 and the water droplets accumulated inside the air inlet pipe 6. Moreover, since water droplets accumulate at the drainage hole, a liquid seal is formed at the drainage hole, preventing gas from entering the air inlet pipe 6 through the drainage hole. This ensures that gas can only enter the air inlet pipe 6 through the second end, guaranteeing the reliable air intake of the air intake assembly.

[0043] The air intake assembly also includes a second filter structure 7, which is located at the second end. Due to the high power and strong suction of the fan, debris, small animals, and rainwater near the second end will be drawn in. Therefore, the second filter structure 7 performs a primary filtration, blocking some debris, small animals, and rainwater from entering the second end, thus improving the cleanliness of the gas entering the air intake pipe 6 and air inlet 11. However, inevitably, a small amount of small particles and rainwater will still be drawn into the equipment. In this case, the first filter structure 4 performs a second filtration to ensure the cleanliness of the gas. That is, the second filter structure 7 filters the gas entering the air intake pipe 6, and then the first filter structure 4 filters it, thus achieving secondary filtration and effectively increasing the cleanliness of the gas entering the buffer chamber 12. The first filter structure 4 has a higher filtration precision than the second filter structure 7. Specifically, the second filter structure 7 filters larger impurities (such as leaves), while the first filter structure 4 filters smaller impurities, effectively increasing the filtration effect of the gas. Furthermore, the second filter structure 7 can prevent small animals from entering the air inlet duct 6 and causing damage to the air inlet assembly, ensuring the reliability of the air inlet assembly. The second filter structure 7 is also detachably installed at the second end, facilitating cleaning.

[0044] Furthermore, after the gas passes through the second filter structure 7, the air inlet pipe 6, the rainproof structure 5, and the first filter structure 4 in sequence, the gas flow rate will be greatly reduced. Then, it flows into the buffer chamber 12, where fine impurities are deposited at the bottom of the buffer chamber 12 due to gravity. Finally, they are discharged through the sand discharge structure 3 and the sand discharge port 14, which fully ensures the cleanliness of the air inlet component and also ensures the reliability of the air inlet component.

[0045] In one embodiment, the sand discharge structure 3 includes a sand discharge plate 31, which is movably disposed at the sand discharge port 14. The sand discharge plate 31 has a sand discharge state with the sand discharge port 14 open and a closed state with the sand discharge port 14 closed. When the sand discharge plate 31 is in the closed state, it can seal the sand discharge port 14. At this time, small impurities entering the housing 1 with the airflow will accumulate at the bottom of the buffer chamber 12. Since the sand discharge port 14 is located at the bottom of the buffer chamber 12, the small impurities will accumulate on the sand discharge plate 31. When it is necessary to discharge the small impurities from the housing 1, it is only necessary to control the movement of the sand discharge plate 31 to discharge the small impurities from the bottom of the housing 1, thus achieving reliable discharge of impurities from the air intake assembly.

[0046] Optionally, the sand discharge plate 31 has a first edge and a second edge. The first edge is hinged to the sand discharge port 14. When the sand discharge plate 31 is in the closed state, the second edge abuts against the edge of the sand discharge port 14. When the sand discharge plate 31 is in the sand discharge state, a gap is formed between the second edge and the sand discharge port 14. That is, the sand discharge plate 31 opens or closes the sand discharge port 14 by rotating along its first edge. Since the sand discharge plate 31 opens and closes by rotating, the sand discharge port 14 can reach its maximum size. Furthermore, small impurities on the sand discharge plate 31 can slide off the sand discharge plate 31 directly under the action of gravity, ensuring reliable discharge of small impurities.

[0047] To improve the sealing effect of the sand discharge plate 31 on the sand discharge port 14, the sand discharge structure 3 further includes a sand holding plate 32. The sand holding plate 32 is disposed at the sand discharge port 14. When the sand discharge plate 31 is in the closed state, the sand discharge plate 31 and the sand holding plate 32 jointly seal the sand discharge port 14. When the sand discharge plate 31 is in the sand discharge state, a gap is formed between the sand discharge plate 31 and the sand holding plate 32. By using the sand holding plate 32 to adjust the cooperation state between the sand discharge plate 31 and the second edge to a cooperation between the sand discharge plate 31 and the sand holding plate 32, the sealing effect of the sand discharge plate 31 on the sand discharge port 14 is effectively improved. Preferably, when the sand discharge plate 31 is in the closed state, the sand discharge plate 31 and the sand holding plate 32 together form a receiving groove 33. The opening of the receiving groove 33 communicates with the buffer cavity 12, and the connection between the sand discharge plate 31 and the sand holding plate 32 is located at the lowest point of the receiving groove 33. The opening of the receiving tank 33 is located on the bottom surface of the buffer chamber 12, allowing fine impurities collected in the buffer chamber 12 to flow into the receiving tank 33 under gravity. Since the gas flows within the buffer chamber 12, the fine impurities in the receiving tank 33 are effectively removed from the gas flow area, thus preventing the gas from carrying the impurities back into the receiving tank 33 and ensuring the cleanliness of the gas flowing through the baffle 2 into the fan chamber 13. Furthermore, because the sand discharge plate 31 and the sand collection plate 32 are positioned at the lowest point of the receiving tank 33, when the sand discharge plate 31 rotates and forms a gap with the sand collection plate 32, the fine impurities in the receiving tank 33 can flow downwards under gravity and exit through this gap, achieving the purpose of discharging fine impurities from the housing 1. Figure 6 and 7 As shown in the figure, the cross-section of the receiving tank 33 is an inverted trapezoidal structure. The inclined side of the inverted trapezoid can guide the flow of fine impurities, making it easier for the fine impurities to enter the bottom of the receiving tank 33 and thus facilitate their discharge from the shell 1.

[0048] To further enhance the sealing effect of the sand discharge plate 31 and the sand holding plate 32 on the sand discharge port 14, a sealing structure 34 is provided on the sand holding plate 32. When the sand discharge plate 31 is in the closed state, the sand discharge plate 31 abuts against the sand holding plate 32 through the sealing structure 34. That is, when the sand discharge plate 31 is in the closed state, part of the sand discharge plate 31 abuts against the first side of the sealing structure 34, while the second side of the sealing structure 34 is fixedly set on the sand holding plate 32, thereby achieving a sealing effect between the sand discharge plate 31 and the sand holding plate 32. This prevents gas outside the housing 1 from entering the buffer cavity 12 through the gap between the sand discharge plate 31 and the sand holding plate 32, ensuring that all gas entering the buffer cavity 12 can only enter through the air inlet 11, thus ensuring the cleanliness of the gas entering the housing 1. Preferably, the sealing structure 34 is a rubber pad with vibration damping and noise reduction functions, preventing noise generated by the impact between the sand discharge plate 31 and the sand holding plate 32.

[0049] Since the sand discharge plate 31 has a certain mass, it will move downwards under the action of gravity. To ensure the sealing effect of the sand discharge plate 31 on the sand discharge port 14, the sand discharge structure 3 also includes a reset mechanism 35. The reset mechanism 35 is disposed between the sand discharge plate 31 and the housing 1, and the reset mechanism 35 can switch the sand discharge plate 31 to the closed state. The reset mechanism 35 drives the sand discharge plate 31 to move towards the sand discharge port 14, ensuring the reliability of the sand discharge plate 31 in the closed state. Furthermore, fine impurities in the buffer chamber 12 will accumulate on the sand discharge plate 31. When the sum of the weight of the fine impurities and the weight of the sand discharge plate 31 is greater than the reset force of the reset mechanism 35, the difference between the weight of the fine impurities, the weight of the sand discharge plate 31 and the reset force of the reset mechanism 35 will cause the sand discharge plate 31 to move downward. At this time, the sand discharge plate 31 will automatically switch to the sand discharge state until the difference between the weight of the fine impurities, the weight of the sand discharge plate 31 and the reset force of the reset mechanism 35 is negative. Then the sand discharge plate 31 will switch to the closed state and finally switch to the closed state, keeping the sand discharge port 14 closed.

[0050] Furthermore, since the fan is located inside the fan chamber 13, a negative pressure is formed inside the buffer chamber 12. This negative pressure will also move the sand discharge plate 31 toward the sand discharge port 14. In other words, this negative pressure will also drive the sand discharge plate 31 to switch to a closed state, thereby increasing the amount of fine impurities collected by the sand discharge plate 31, reducing the number of times the sand discharge plate 31 switches to the sand discharge state, and thus reducing the number of times the buffer chamber 12 communicates with the outside through the sand discharge port 14, further improving the cleanliness of the air intake component.

[0051] Specifically, the reset mechanism 35 includes an elastic element, one end of which is connected to the housing 1, and the other end is connected to the sand discharge plate 31. When the sand discharge plate 31 switches to the sand discharge state, the elastic element is driven by the sand discharge plate 31 to deform. At this time, the elastic element accumulates elastic potential energy. After the fine impurities are discharged from the housing 1, the elastic potential energy accumulated by the elastic element is released, causing the sand discharge plate 31 to switch to the closed state, thereby automatically closing the sand discharge port 14. This enables the air intake assembly to automatically discharge fine impurities, reducing the number of maintenance operations of the air intake assembly, effectively improving the user experience, and reducing maintenance costs. Figure 6 and 7 As shown, the elastic element is a spring, and when the sand discharge plate 31 switches to the sand discharge state, the spring is stretched. At this time, the spring has the ability to return to its original shape and can drive the sand discharge plate 31 to move upward, thereby having the ability to switch the sand discharge plate 31 to the closed state, so as to realize the purpose of automatic sand discharge and automatic reset of the sand discharge plate 31.

[0052] The air intake assembly also includes a base 8, through which the housing 1 is mounted on the ground. Bolts and fasteners are pre-embedded in the base 8 to secure the air intake assembly. This not only keeps the air intake assembly away from the ground, preventing it from being corroded by rainwater, but also, since the mounting base 8 is hollow in the middle, when the air intake assembly is discharging sand (when the sand discharge plate 31 switches to the sand discharge state and the sand discharge port 14 opens), the sand can be directly and smoothly discharged to the ground through the hollow structure in the middle of the base 8, thus saving material costs.

[0053] A ventilation device includes the aforementioned air intake assembly.

[0054] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. An air intake assembly, characterized by: include: Housing (1), on which an air inlet (11) is provided; A partition (2) is disposed inside the housing (1), and the partition (2) divides the interior of the housing (1) into a buffer chamber (12) and a fan chamber (13) that are interconnected. The air inlet (11) is connected to the fan chamber (13) through the buffer chamber (12). The sand discharge structure (3) has a sand discharge port (14) on the bottom surface of the buffer cavity (12), and the sand discharge structure (3) is located at the sand discharge port (14). The sand discharge structure (3) includes a sand discharge plate (31), which is movably disposed at the sand discharge port (14), and the sand discharge plate (31) has a sand discharge state with the sand discharge port (14) open and a closed state with the sand discharge port (14) closed. The sand discharge structure (3) also includes a sand holding plate (32), which is disposed at the sand discharge port (14). When the sand discharge plate (31) is in the closed state, the sand discharge plate (31) and the sand holding plate (32) together close the sand discharge port (14). When the sand discharge plate (31) is in the sand discharge state, a gap is formed between the sand discharge plate (31) and the sand holding plate (32). When the sand discharge plate (31) is in the closed state, the sand discharge plate (31) and the sand holding plate (32) together form a receiving groove (33), the opening of the receiving groove (33) is connected to the buffer cavity (12), and the connection between the sand discharge plate (31) and the sand holding plate (32) is located at the lowest point of the receiving groove (33).

2. The air intake assembly of claim 1, wherein: The sand-holding plate (32) is provided with a sealing structure (34). When the sand-discharging plate (31) is in the closed state, the sand-discharging plate (31) abuts against the sand-holding plate (32) through the sealing structure (34).

3. The air intake assembly according to claim 1, characterized in that: The sand discharge structure (3) further includes a reset mechanism (35), which is disposed between the sand discharge plate (31) and the housing (1), and the reset mechanism (35) can switch the sand discharge plate (31) to the closed state.

4. The air intake assembly according to claim 3, characterized in that: The reset mechanism (35) includes an elastic element, one end of which is connected to the housing (1) and the other end is connected to the sand discharge plate (31).

5. The air intake assembly according to claim 1, characterized in that: The air intake assembly also includes a first filter structure (4), which is detachably disposed at the air inlet (11).

6. The air intake assembly according to claim 5, characterized in that: The air intake assembly also includes a rainproof structure (5), which is located at the air inlet (11) and on the side of the first filter structure (4) away from the partition (2).

7. The air intake assembly according to claim 5, characterized in that: The air intake assembly also includes an air intake pipe (6), the first end of which is connected to the air inlet (11), the second end of which is a free end, and the highest point of the end face of the second end is lower than the highest point of the end face of the first end.

8. The air intake assembly according to claim 7, characterized in that: The central axis of the air inlet pipe (6) is arc-shaped, and the end face of the second end is inclined downward relative to the end face of the first end.

9. The air intake assembly according to claim 7, characterized in that: The air intake assembly also includes a second filter structure (7), which is disposed at the second end.

10. The air intake assembly according to claim 1, characterized in that: The air intake assembly also includes a base (8), and the housing (1) is mounted on the ground via the base (8).

11. A ventilation device, characterized in that: Includes the air intake assembly as described in any one of claims 1 to 10.

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