An indoor ventilation device

Abstract

The application relates to the technical field of indoor ventilation, in particular to an indoor ventilation device which comprises a box body, an air outlet arranged at one end of the box body, an air inlet arranged at the other end of the box body, an air treatment assembly for filtering air and a dust falling assembly; the air treatment assembly comprises a filtering assembly and a cleaning assembly. In the application, the rotation of a screw rod is driven by starting a power source, the connecting block is driven to move along the screw rod, the connecting rod, the scraper and the scraping head are synchronously driven to move, the surface of the filtering screen is cleaned, the problem that the performance of the filtering screen is reduced due to the accumulation of impurities on the surface of the filtering screen is effectively avoided, the rotation direction of the screw rod is driven by switching the power source, the scraper and the scraping head are driven to reciprocate on the surface of the filtering screen, multiple cleaning is realized, and the cleaning effect is better.

Description

Technical Field

[0001] The present invention relates to the technical field of indoor ventilation, and in particular to an indoor ventilation device. Background Art

[0002] The core purpose of indoor ventilation is to improve indoor air quality and remove pollutants in the air, such as dust and lint. Indoor ventilation in factories is especially important. To ensure dust-free production, it is even more necessary to ensure the filtration of pollutants in the air. The filter is the core barrier to ensure air quality in modern indoor ventilation systems, but its performance will deteriorate rapidly due to the accumulation of pollutants.

[0003] The patent application with application number CN202411230689.7 relates to the technical field of ventilation and air exchange devices, specifically a ventilation and air exchange device for packaging and printing workshops, including an exhaust duct and an air intake duct, both of which pass through the wall, and the exhaust duct and the air intake duct are respectively provided with an exhaust fan and an air intake fan inside the exhaust duct and the air intake duct, and also includes an air exchange box, and the outer ends of the exhaust duct and the air intake duct extend into the top inner side and the bottom inner side of the air exchange box respectively; the invention has a drying mechanism and a humidifying mechanism, when the air is relatively dry, it can be humidified by the humidifying mechanism, and when the air is relatively humid, it can be dehumidified by the drying mechanism, so the present invention can maintain indoor ventilation while maintaining indoor air humidity.

[0004] However, the patent does not explain how to clean the filter. Long-term use will cause the filter performance to deteriorate, affecting the air filtering effect.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the Invention

[0006] The object of the present invention is to provide an indoor ventilation device that can effectively solve the above technical problems.

[0007] In order to achieve the purpose of the present invention, the following technical solutions are adopted:

[0008] An indoor ventilation device comprises: a box body; an air outlet at one end of the box body; an air inlet at the other end of the box body; an air treatment component for filtering air and a dust reduction component;

[0009] The air treatment component includes: a filter component and a cleaning component;

[0010] The filter assembly includes: a fixed frame fixedly mounted on the box body; a filter screen fixedly mounted on the fixed frame; a limiting groove provided on the side of the fixed frame; a chamfer provided on the bottom end of the fixed frame; and a fixed block fixedly mounted on the fixed frame.

[0011] The cleaning assembly includes: a power source; a screw fixedly mounted on the output shaft of the power source; a connecting block threadedly connected to the screw; and a connecting rod rotatably mounted on the connecting block.

[0012] A scraper is fixedly mounted on the connecting rod; and a scraper head is fixedly mounted on the scraper.

[0013] Furthermore, the cleaning assembly also includes: a spring 1 fixedly mounted on the connecting block; one end of the spring 1 is fixedly connected to the connecting rod; and a top block is fixedly mounted on one end of the connecting rod.

[0014] Furthermore, the dust reduction component includes: a sliding frame; a swinging groove provided on the sliding frame; a long shaft fixedly installed on the swinging groove; a swinging shaft rotatably installed on the long shaft; a torsion spring wound on the long shaft, and the two ends of the torsion spring are respectively fixedly installed on the swinging groove and the swinging shaft; a nozzle fixedly installed on the end of the swinging shaft; a water pipe connected to the nozzle; an adjusting groove provided on the box body; the sliding frame is slidably connected to the box body through the swinging shaft and the adjusting groove.

[0015] Furthermore, the dust reduction component also includes: an electric telescopic rod that drives the sliding frame to move; and a debris removal component.

[0016] Furthermore, the impurity removal component includes: a rotating groove opened on the sliding frame; a rotating rod rotatably installed on the rotating groove; a spring three fixedly installed on the sliding frame; and a push rod fixedly installed on the spring three.

[0017] Furthermore, a clamping hole is provided on the rotating rod; an inclined surface is provided on the edge of the clamping hole; the top rod cooperates with the clamping hole, and two groups of clamping holes are provided.

[0018] Furthermore, a cleaning plate is fixedly mounted on the rotating rod; a second spring is fixedly mounted on one end of the cleaning plate; a cleaning head is fixedly mounted on one end of the second spring; and the cleaning head is slidably connected to the cleaning plate.

[0019] Furthermore, the box body is obliquely provided with a first hydrophobic surface and a second hydrophobic surface, both of which are obliquely arranged; a first row of waste outlets is provided between the first hydrophobic surface and the second hydrophobic surface; a second row of waste outlets is provided on the end face of the box body close to the air inlet.

[0020] Furthermore, a partition is fixedly installed inside the box, and the partition divides the inside of the box into two groups of channels.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention provides an indoor ventilation device, which drives the screw to rotate by starting the power source, and then drives the connecting block to move along the screw, and at the same time drives the connecting rod, scraper and scraper head to move synchronously, so as to clean the surface of the filter screen, and effectively avoid the problem of reduced filter performance caused by accumulation of impurities on the surface of the filter screen. By switching the power source to drive the rotation direction of the screw, the scraper and scraper head can be driven to move back and forth up and down on the surface of the filter screen, thereby achieving multiple cleanings and better cleaning effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0024] Figure 1 is a schematic diagram of an indoor ventilation device of the present invention;

[0025] Figure 2 This is a schematic diagram of an indoor ventilation device according to the present invention from another perspective;

[0026] Figure 3 This is a schematic cross-sectional view of a box body of an indoor ventilation device according to the present invention;

[0027] Figure 4 A schematic diagram of a cleaning component of an indoor ventilation device according to the present invention;

[0028] Figure 5 An indoor ventilation device of the present invention Figure 4 A in the middle is an enlarged schematic diagram;

[0029] Figure 6 A schematic diagram of a scraper of an indoor ventilation device according to the present invention;

[0030] Figure 7 An indoor ventilation device of the present invention Figure 6 The enlarged schematic diagram of point B in the middle;

[0031] Figure 8 This is a schematic diagram of a first hydrophobic surface of an indoor ventilation device according to the present invention;

[0032] Figure 9 An indoor ventilation device of the present invention Figure 8 Enlarged schematic diagram at point C in the middle;

[0033] Figure 10 A partial schematic diagram of a dust suppression component of an indoor ventilation device according to the present invention;

[0034] Figure 11 A sliding frame schematic diagram of an indoor ventilation device according to the present invention;

[0035] Figure 12This is a schematic diagram of an impurity removal component of an indoor ventilation device of the present invention;

[0036] Figure 13 An indoor ventilation device of the present invention Figure 12 The enlarged schematic diagram of point D in the middle;

[0037] Figure 14 This is a schematic diagram of a cleaning plate of an indoor ventilation device of the present invention.

[0038] In the picture:

[0039] 1. Box; 11. First hydrophobic surface; 12. Second hydrophobic surface; 13. First waste outlet; 14. Second waste outlet; 2. Air outlet; 3. Air inlet; 4. Partition; 5. Air handling assembly; 51. Cleaning assembly; 511. Screw; 512. Connecting block; 513. Spring 1; 514. Connecting rod; 515. Scraper; 5151. Scraping head; 516. Top block; 52. Filter assembly; 521. Fixing frame; 522. Filter screen; 523 , chamfer; 524, limit groove; 525, fixed block; 6, dust suppression component; 61, sliding frame; 62, swing groove; 63, swing shaft; 64, nozzle; 65, water pipe; 66, adjustment groove; 67, electric telescopic rod; 68, debris removal component; 681, rotating groove; 682, rotating rod; 6821, cleaning plate; 6822, spring two; 6823, cleaning head; 683, card hole; 684, inclined surface; 685, spring three; 686, push rod. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0041] In the description of the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0042] like Figures 1 to 14 As shown, the present invention provides an indoor ventilation device, comprising: a box body 1, a partition 4 is fixedly installed inside the box body 1, and the partition 4 divides the inside of the box body 1 into two groups of channels; the two groups of channels can simultaneously accommodate fresh air and return air; an air outlet 2 is opened at one end of the box body 1, and the air outlet 2 is a pipe-shaped design, and a flange is installed at its end, which can be connected to other pipes to realize long-distance air supply; an air inlet 3 is opened at the other end of the box body 1, and the air inlet 3 is directly opened on the box body 1, and a protective net is installed at the opening to prevent foreign matter from entering, and a certain distance difference is formed between the air outlet 2 and the air inlet 3 to avoid air mixing and affecting the cleanliness of the gas; an air treatment component 5 and a dust reduction component 6 for filtering the air; the air treatment component 5 is arranged at a position close to the air outlet 2, and filters the air by means of a filter 522, and the dust reduction component 6 is arranged at a position close to the air inlet 3, and reduces dust and particles in the air in the form of spray.

[0043] A high-pressure fan is also fixedly installed on the box body 1, which draws outdoor air into the room through a group of channels to achieve air supply, and draws indoor air out through another group of channels to achieve ventilation in the room.

[0044] The air treatment component 5 includes: a filter component 52 and a cleaning component 51;

[0045] The filter assembly 52 includes: a fixed frame 521 fixedly mounted on the box body 1; a filter screen 522 fixedly mounted on the fixed frame 521; the filter screen 522 is preferably a 304 stainless steel metal filter screen 522 with a mesh size of 20-100, which can effectively filter dust, pet hair and other particulate matter;

[0046] The cleaning assembly 51 includes: a power source, which is preferably a motor; the power source is fixedly mounted on the box body 1, and the power source output shaft passes through the box body 1; a screw 511 fixedly mounted on the power source output shaft, and the other end of the screw 511 is rotatably mounted on the box body 1; a connecting block 512 threadedly connected to the screw 511; a connecting rod 514 rotatably mounted on the connecting block 512, and a scraper 515 is fixedly mounted on the connecting rod 514; a scraper head 5151 is fixedly mounted on the scraper 515, and the scraper head 5151 is in close contact with the surface of the filter screen 522.

[0047] When in use, start the power source to drive the screw 511 to rotate, and then drive the connecting block 512 to move along the screw 511, and at the same time drive the connecting rod 514, scraper 515 and scraper head 5151 to move synchronously, so as to clean the surface of the filter 522, and effectively avoid the problem of reduced performance of the filter 522 due to accumulation of impurities on the surface of the filter 522. By switching the power source to drive the rotation direction of the screw 511, the scraper 515 and scraper head 5151 can be driven to move back and forth on the surface of the filter 522, so as to achieve multiple cleanings and better cleaning effects.

[0048] It should be noted that the filter assembly 52 also includes: a limiting groove 524 opened on the side of the fixed frame 521; the connecting rod 514 is slidably connected to the limiting groove 524. When the power source drives the connecting block 512 to move, the connecting rod 514 slides in the limiting groove 524. Under the limitation of the limiting groove 524, the screw rod 511 stably drives the connecting rod 514 to move axially along the screw rod 511.

[0049] It should be noted that when the scraper 515 removes impurities, the impurities will accumulate at the bottom of the filter 522, causing the filtering effect of the filter 522 to deteriorate. The accumulation of impurities may also breed bacteria and cause greater corrosion to the bottom of the filter 522. The filter assembly 52 also includes: a chamfer 523 provided on the bottom end of the fixing frame 521; a fixing block 525 fixedly mounted on the fixing frame 521; and the cleaning assembly 51 also includes: a spring 513 fixedly mounted on the connecting block 512; one end of the spring 513 is fixedly connected to the connecting rod 514; one end of the connecting rod 514 is fixedly mounted with a top block 516;

[0050] When the connecting rod 514 drives the scraper 515 and the scraping head 5151 to clean the filter screen 522, the top block 516 moves downward synchronously. When the top block 516 contacts the fixed block 525, the fixed block 525 pushes the top block 516 to drive the connecting rod 514 to rotate, and at the same time drives the scraper 515 and the scraping head 5151 to rotate, so that the scraping head 5151 cooperates with the angle of the chamfer 523 to scrape off the impurities at the bottom of the filter screen 522, thereby avoiding corrosion and blockage caused by the accumulation of impurities at the bottom of the filter screen 522.

[0051] When the top block 516 drives the connecting rod 514 to rotate, the spring 1 513 is deformed by the force. When the connecting block 512 moves upward under the action of the screw 511, the top block 516 is separated from the fixed block 525. At this time, the spring 1 513 is reset, driving the connecting rod 514 to reset, which is convenient for subsequent use.

[0052] In general, the air treatment component 5 can effectively filter the air entering the room and isolate the dust in the air. If the filter 522 is clogged due to long-term use or excessive dust and lint in the environment, it can also be scraped off by the cleaning component 51 to ensure the effectiveness of the filter 522.

[0053] When there is a lot of dust in the natural environment, the air is filtered by the filter 522. The filter 522 will be blocked frequently, and the cleaning component 51 cannot completely discharge the dust and lint from the box 1, making cleaning difficult. It will also affect indoor ventilation. In addition, dusty days are accompanied by high temperature, dryness, and low indoor humidity.

[0054] The dust reduction component 6 includes: a sliding frame 61; a swinging groove 62 provided on the sliding frame 61; a long shaft fixedly mounted on the swinging groove 62; a swinging shaft 63 rotatably mounted on the long shaft, a torsion spring wound on the long shaft, and two ends of the torsion spring are respectively fixedly mounted on the swinging groove 62 and the swinging shaft 63; a nozzle 64 fixedly mounted on the end of the swinging shaft 63, and three groups of nozzles 64 are provided on the sliding frame 61, respectively located at the upper end of the sliding frame 61 and on both sides connected to the upper end, a water pipe 65 connected to the nozzle 64, the water pipe 65 is preferably a hose, and one end of the water pipe 65 passes through the box 1 and is connected to a water source, and the spray volume of the nozzle 64 can be adjusted to meet different needs; an adjusting groove 66 provided on the box 1; the sliding frame 61 is slidably connected to the box 1 through the swinging shaft 63 and the adjusting groove 66, as well as a debris removal component 68.

[0055] When there is a lot of wind and sand, the nozzle 64 is started to spray water mist to reduce the dust in the air. The air after dust reduction is filtered twice through the air treatment component 5 and then discharged into the room, which not only reduces the dust and lint in the air but also increases the air humidity.

[0056] In addition, the dust reduction component 6 also includes: an electric telescopic rod 67 that drives the sliding frame 61 to move. A protective shell needs to be installed on the surface of the electric telescopic rod 67 to prevent wind and sand from affecting the electric telescopic rod 67. The electric telescopic rod 67 is fixedly installed on the box body 1. In the initial state, the sliding frame 61 is close to the air inlet 3, but has not reached the end of the adjustment slot 66. When the electric telescopic rod 67 pushes the sliding frame 61 to move toward the filter 522, when the sliding frame 61 moves to the end of the adjustment slot 66, the adjustment slot 66 pushes the swing shaft 63 to rotate through the long axis, while driving the torsion spring to deform. At this time, the nozzle 64 sprays toward the filter 522, so that the dust and fluff on the surface of the filter 522 are bonded together under the action of water. At this time, when scraped by the scraper 5151, no dust will be raised, causing secondary pollution. In addition, the nozzle 64 cleans the filter 522 at an angle, and the cleaning effect is better.

[0057] It should be noted that when the sliding frame 61 moves to the other end, the nozzle 64 tilts in the other direction, which can clean the protective net at the air inlet 3 and has a good use effect.

[0058] It should be added that another group of adjustment grooves 66 are provided on the surface of the partition 4, that is, two groups of nozzles 64 located on the side of the sliding frame 61 will spray toward the filter 522, and another group of nozzles 64 will keep spraying downward to always reduce dust in the air to ensure the dust reduction effect.

[0059] In addition, the box body 1 is provided with a first hydrophobic surface 11 and a second hydrophobic surface 12, both of which are arranged obliquely; a first row of waste ports 13 is provided between the first hydrophobic surface 11 and the second hydrophobic surface 12; a second row of waste ports 14 is provided on the end surface of the box body 1 close to the air inlet 3, and when the nozzle 64 is close to the air inlet 3, the nozzle 64 sprays obliquely toward the air inlet 3, and the sprayed water mist forms a mixture with the dust in the air and falls on the second hydrophobic surface. 12 and discharged through the second waste outlet 14. When the nozzle 64 approaches the filter 522, the nozzle 64 sprays toward the filter 522. The sprayed water mist and the impurities scraped off by the scraper 5151 flow to the first waste outlet 13 through the first hydrophobic surface 11, thereby classifying and collecting impurities in the air and impurities cleaned from the filter 522. Through the impurities in the first waste outlet 13 and the second waste outlet 14, it can be judged whether there is bacterial growth on the filter 522 and impurities in the air.

[0060] That is to say, the sliding of the sliding frame 61 can adjust the water spraying position of the nozzle 64 on the one hand, so that the nozzle 64 can clean the protective net on the one hand and the filter net 522 on the other hand, and at the same time, the impurities scraped off by the scraper 5151 can be discharged through the first row of waste ports 13, and the use effect is good.

[0061] In general, when the sliding frame 61 is moved by the electric telescopic rod 67, the adjustment groove 66 can limit the movement of the sliding frame 61, control the water spraying of the nozzle 64, improve the use effect of the nozzle 64, and ensure that the sliding frame 61 does not shake when moving. When the sliding frame 61 moves to one end of the sliding groove, the nozzle 64 sprays water obliquely to clean the filter 522 with water, and the cleaning effect is good.

[0062] Finally, when the sliding frame 61 moves, it synchronously drives the debris removal component 68 to move. The debris removal component 68 includes: a rotating groove 681 provided on the sliding frame 61; a rotating rod 682 rotatably mounted on the rotating groove 681; a spring three 685 fixedly mounted on the sliding frame 61; a push rod 686 fixedly mounted on the spring three 685; a locking hole 683 is provided on the rotating rod 682; a bevel 684 is provided on the edge of the locking hole 683; the push rod 686 cooperates with the locking hole 683, and the locking hole 683 is provided in two groups.

[0063] A cleaning plate 6821 is fixedly mounted on the rotating rod 682 ; a second spring 6822 is fixedly mounted on one end of the cleaning plate 6821 ; a cleaning head 6823 is fixedly mounted on one end of the second spring 6822 ; the cleaning head 6823 is slidably connected to the cleaning plate 6821 .

[0064] When the sliding frame 61 moves, it drives the rotating rod 682 to move synchronously. At the same time, the cleaning plate 6821 on the rotating rod 682 drives the cleaning head 6823 to clean the first hydrophobic surface 11 to avoid clogging by impurities and affecting the use effect of the filter 522.

[0065] The sliding frame 61 moves toward the filter screen 522, so that the cleaning plate 6821 contacts the scraping head 5151. The reaction force of the scraping head 5151 pushes the cleaning plate 6821 to drive the rotating rod 682 to rotate. At this time, the push rod 686 is guided by the inclined surface 684, moves toward the spring three 685, and squeezes the spring three 685. At the same time, the push rod 686 moves out of the card hole 683 and rotates with the rotating rod 682. The push rod 686 coincides with the other set of card holes 683. At this time, the spring three 685 is reset, and the push rod 686 enters the other set of card holes 683, thereby fixing the rotating rod 682. After the rotating rod 682 rotates, the cleaning plate 6821 and the cleaning head 6823 are always connected to the first scavenging hole under the action of the spring two 6822. When the cleaning plate 6821 and the cleaning head 6823 come into contact with the second hydrophobic surface 12, the cleaning plate 6821 and the cleaning head 6823 push the rotating rod 682 in the opposite direction to prevent the cleaning head 6823 from contacting the first hydrophobic surface 11. When the cleaning plate 6821 and the cleaning head 6823 move to contact the second hydrophobic surface 12, since the second hydrophobic surface 12 is higher than the first hydrophobic surface 11, the second hydrophobic surface 12 pushes the rotating rod 682 to rotate in the opposite direction through the cleaning plate 6821, so that the cleaning head 6823 does not contact the first hydrophobic surface 11. At this time, when the cleaning head 6823 moves toward the filter screen 522, it will not drive the impurities on the first hydrophobic surface 11 to move toward the filter screen 522, and the use effect is good.

[0066] That is to say, the movement of the sliding frame 61 can, on the one hand, drive the nozzle 64 to change the direction of the water spraying and improve the cleaning effect. On the other hand, it can drive the cleaning head 6823 and the cleaning plate 6821 to clean the first hydrophobic surface 11 to prevent impurities from accumulating on the first hydrophobic surface 11 and affecting the filtering effect of the filter 522. At the same time, it can prevent impurities from accumulating and breeding bacteria. When the sliding frame 61 moves toward the filter 522, the cleaning plate 6821 and the cleaning head 6823 do not contact the first hydrophobic surface 11, thereby ensuring that the cleaning head 6823 will not push the impurities on the first hydrophobic surface 11 toward the filter 522 in reverse, thereby ensuring the use effect of the filter 522.

[0067] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0068] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. An indoor ventilation device, characterized in that: include: A box body; an air outlet opened at one end of the box body; an air inlet opened at the other end of the box body; Air handling components and dust reduction components for filtering air; The air treatment component includes: a filter component and a cleaning component; The filter assembly includes: a fixed frame fixedly mounted on the box body; a filter screen fixedly mounted on the fixed frame; a limiting groove provided on the side of the fixed frame; a chamfer provided on the bottom end of the fixed frame; and a fixed block fixedly mounted on the fixed frame. The cleaning assembly includes: a power source; a screw fixedly mounted on the output shaft of the power source; a connecting block threadedly connected to the screw; and a connecting rod rotatably mounted on the connecting block. The connecting rod is fixedly mounted with a scraper; the scraper is fixedly mounted with a scraper head; The dust suppression assembly includes: a sliding frame; a swinging groove provided on the sliding frame; a long shaft fixedly mounted on the swinging groove; a swinging shaft rotatably mounted on the long shaft; a torsion spring wound around the long shaft, with both ends of the torsion spring fixedly mounted on the swinging groove and the swinging shaft respectively; a nozzle fixedly mounted on the end of the swinging shaft; a water pipe connected to the nozzle; an adjustment groove provided on the box; the sliding frame is slidably connected to the box via the swinging shaft and the adjustment groove; The cleaning assembly further comprises: a spring 1 fixedly mounted on the connecting block; one end of the spring 1 is fixedly connected to the connecting rod; one end of the connecting rod is fixedly mounted with a top block; The dust reduction assembly further includes: an electric telescopic rod for driving the sliding frame to move; and a debris removal assembly; The impurity removal assembly includes: a rotation slot provided on the sliding frame; a rotation rod rotatably mounted on the rotation slot; a spring 3 fixedly mounted on the sliding frame; and a push rod fixedly mounted on the spring 3. The rotating rod is provided with a locking hole; the edge of the locking hole is provided with an inclined surface; the top rod is matched with the locking hole, and the locking holes are provided in two groups; A cleaning plate is fixedly mounted on the rotating rod; a second spring is fixedly mounted on one end of the cleaning plate; a cleaning head is fixedly mounted on one end of the second spring; and the cleaning head is slidably connected to the cleaning plate.

2. An indoor ventilation device according to claim 1, characterized in that: The box body is obliquely provided with a first hydrophobic surface and a second hydrophobic surface, both of which are obliquely arranged; a first row of waste outlets is provided between the first hydrophobic surface and the second hydrophobic surface; a second row of waste outlets is provided on the end surface of the box body close to the air inlet.

3. An indoor ventilation device according to claim 1, characterized in that: A partition is fixedly installed inside the box body, and the partition body divides the inside of the box body into two groups of channels.

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