A variable air volume control system for hospitals

Abstract

The present invention discloses a variable air volume control system for a hospital, which relates to the technical field of air volume regulation, comprising a variable air volume control device body, a filter maintenance mechanism being provided on one side of the interior of the variable air volume control device body, an air outlet regulation mechanism being provided on the other side of the interior of the variable air volume control device body, and a filter body being provided inside the variable air volume control device body; the present invention provides a filter maintenance mechanism, so that the filter body can automatically detect blockage during operation, and trigger a controller through the displacement of the filter body to start a vacuum cleaner and a cleaning brush, the cleaning brush can efficiently remove dust and pollutants on the filter body, and the vacuum cleaner absorbs these pollutants to prevent dust from re-entering the air flow, thereby ensuring continuous air purification, and regular cleaning of the filter can also improve air circulation, avoid a decrease in air volume due to blockage, thereby maintaining the air quality and ventilation effect of the hospital environment.

Description

Technical Field

[0001] The present invention relates to the technical field of air volume regulation, and in particular to a variable air volume control system for a hospital. Background Art

[0002] With the advancement of medical technology and the increasing complexity of the hospital environment, hospital air conditioning and ventilation systems are becoming increasingly important, especially in special areas such as operating rooms, ICU wards, and laboratories. Air quality, temperature and humidity control, and comfort directly affect patients' recovery and the work efficiency of medical staff. Therefore, how to provide efficient, comfortable, and energy-saving air conditioning solutions has become a key issue in modern hospital building design.

[0003] According to the invention patent with Chinese patent publication number CN114623582A, its name is a variable air volume control system for energy saving in centralized air conditioning and heating engineering. It is specifically described as including a variable air volume control system body, the variable air volume control system includes a VAV device, a DDC controller, a variable frequency fan body, a main power supply, an air volume delivery unit, which is arranged on the variable frequency fan body and is used to deliver the treated air to each air-conditioned room; an air volume control unit, which is arranged in each air-conditioned room and is used to adjust the air distribution volume in the air-conditioned room; a wind power generation unit, which is used to convert the adjusted excess air volume into electrical energy; an electricity storage unit, which is used to store the converted electrical energy; and a switching unit, which is used to switch the main power used by the variable frequency fan body to the electricity storage unit. This variable air volume control system for energy saving in centralized air conditioning and heating engineering regulates the air delivered to the air-conditioned room by the air duct through the operation control component on the air volume control unit, thereby achieving the purpose of regulating the air volume in a single room.

[0004] However, the existing variable air volume control system used in hospitals has the following shortcomings:

[0005] 1. Filters in traditional air conditioning systems typically require regular manual cleaning and maintenance, a time-consuming process that can disrupt the hospital environment, particularly within wards and operating rooms. When maintenance workers enter wards to clean, they can disrupt patients' rest, affecting their comfort and even impacting treatment outcomes. In specialized areas like operating rooms, the presence of maintenance workers can affect environmental cleanliness and even create a potential risk of cross-infection.

[0006] 2. Traditional air volume adjustment methods mostly rely on mechanical dampers, which can generate significant noise during air volume changes. In particular, the opening and closing of dampers and uneven air volume during adjustment can cause airflow turbulence and noise pollution, impacting the hospital's restful environment. Noise control is particularly important in areas requiring quiet, such as wards and operating rooms.

[0007] 3. Traditional filter cleaning methods often rely on manual labor or external cleaning equipment. However, even with manual cleaning, some stubborn dirt may not be completely removed, resulting in long-term dust accumulation on the filter, affecting air quality and system operating efficiency.

[0008] Therefore, we propose a variable air volume control system for hospitals to solve the above problems. Summary of the Invention

[0009] The purpose of the present invention is to provide a variable air volume control system for hospitals to solve the problems that traditional filter cleaning interferes with patients' rest and may cause cross infection, traditional air volume adjustment produces noise, affecting the hospital's rest environment, and manual cleaning is difficult to complete, and dust accumulation on the filter affects the air quality.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a variable air volume control system for a hospital, comprising a variable air volume control device body, a filter maintenance mechanism provided on one side of the interior of the variable air volume control device body, an air volume adjustment mechanism provided on the other side of the interior of the variable air volume control device body, and a filter body provided on the interior of the variable air volume control device body;

[0011] A filter maintenance mechanism, comprising two sealing membranes, which are used to cover the filter body, thereby effectively preventing dust or contaminants on the filter body from leaking during the filter body cleaning process;

[0012] The air volume adjustment mechanism includes an adjustment plate and an adjustment ring. The adjustment plate and the adjustment ring cooperate with each other to linearly adjust the air volume of the variable air volume control device body, making the change of the air volume smoother.

[0013] Preferably, a winding rod is inserted into the inside of the two sealing films, one end of the two sealing films is fixedly connected to the outer wall of the two winding rods respectively, a storage box is provided on the outside of the two sealing films, the upper and lower ends of the two winding rods are rotatably connected to the inner wall of the top end of the storage box and the inner wall of the bottom end of the storage box respectively, the top and bottom of the two winding rods are connected to a coil spring, the other ends of the two sealing films pass through the two storage boxes respectively, the other ends of the two sealing films are fixedly connected to a baffle, and the backs of the two storage boxes are fixedly connected to a fixed frame.

[0014] Preferably, the inner sides of the two baffles are fixedly connected with racks, the two racks are meshed with gears, the outer walls of the two racks are slidably connected with U-shaped fixing plates, the two U-shaped fixing plates are respectively fixedly connected to the front sides of the two fixed frames, the top of one of the fixed frames is fixedly connected with motor 1, the tops of the two fixed frames are fixedly connected with limiting plates, the output end of motor 1 is fixedly connected with a transmission rod, one end of the transmission rod passes through each limiting plate, and four pull ropes are wound around the outer wall of the transmission rod.

[0015] Preferably, the bottom ends of the two adjacent pull ropes pass through the fixed frame and are respectively fixedly connected to an inner concave plate, the two inner concave plates are slidably connected to the inner side of the fixed frame, the bottom end of each of the inner concave plates is connected to two vacuum cleaners, the top two sides of each of the inner concave plates are fixedly connected to limiting members, the inner side of each of the limiting members is fixedly connected to a spring rod, the bottom ends of the two fixed frames are fixedly connected to a base, the inner sides of the two fixed frames are fixedly connected to a compression spring, and one end of each compression spring is fixedly connected to a sealing plate.

[0016] Preferably, the top of the base is slidably connected to a mounting plate, the two filter bodies are connected to the middle of the mounting plate, two sliding grooves are provided at the top of the base, the inner walls of the two sliding grooves are slidably connected to sliders, and the tops of the two sliders are respectively fixedly connected to the bottom end of the mounting plate.

[0017] Preferably, the outer sides of the two sliders are rotatably connected to return springs, one end of the two return springs is provided with a sliding rod, the inner walls of the two slide grooves are fixedly connected to limit rings, one end of each sliding rod passes through the two limit rings, the inner sides of the two limit rings are rotatably connected to one end of the two return springs, one side of the two sliding rods is provided with a controller, and the two controllers are respectively connected to the inner walls of the two slide grooves.

[0018] Preferably, motor 2 is fixedly connected between the two fixed frames, the output end of motor 2 is fixedly connected to the inner side of the gear, two dust boxes are fixedly connected to the top of the base, the two dust boxes are respectively connected to two adjacent vacuum cleaners, four rubber plates are fixedly connected to the front of the mounting plate, each of the rubber plates is fixedly connected to a rubber protrusion on the front, and a cleaning brush is fixedly connected to the inner sides of the two concave plates, and the controller is electrically connected to motor 1, motor 2 and the vacuum cleaner.

[0019] Preferably, the front of the variable air volume control device body is snap-connected with a protective grille, the back of the variable air volume control device body is connected with an air supply device, and the inner wall of the variable air volume control device body is installed with a heat exchange coil body.

[0020] Preferably, the outer walls of the two adjustment rings are fixedly connected to the transmission ring, the front sides of the two adjustment rings are provided with adjustment grooves, the inner walls of the two adjustment grooves are slidably connected to limit columns, the two limit columns are respectively rotatably connected to the outer sides of each adjustment plate, and the front side of the heat exchange coil body is fixedly connected to two air outlet pipes.

[0021] Preferably, the front faces of the two air outlet ducts are fixedly connected with a fixing ring, the inner sides of the two fixing rings are rotatably connected with the two adjustment plates respectively, the top end of the inner wall of the variable air volume control device body is fixedly connected with a transmission motor, the output end of the transmission motor is fixedly connected with a transmission wheel, and a transmission belt is sleeved between the transmission wheel and the two transmission rings:

[0022] 1. The present invention is equipped with a filter maintenance mechanism. The filter body will automatically detect blockage during operation, and trigger the controller through the displacement of the filter body to start the vacuum cleaner and cleaning brush. The cleaning brush can efficiently remove dust and pollutants on the filter body, while the vacuum cleaner absorbs these pollutants to prevent dust from re-entering the air flow, ensuring continuous air purification. Regular cleaning of the filter can also improve air circulation and avoid a decrease in air volume due to blockage, thereby maintaining the air quality and ventilation effect of the hospital environment.

[0023] 2. The present invention utilizes an air volume adjustment mechanism to achieve linear air volume adjustment. When the user needs to adjust the variable air volume, the transmission motor is activated, driving the transmission wheel and transmission ring. The rotation of the adjustment ring drives the adjustment slot to squeeze the limit post. The limit post moves, causing the adjustment plate to rotate, thereby changing the ventilation volume of the fixed ring. This process makes the air volume change smoother and more precise, avoiding energy waste caused by excessive or insufficient air volume. In addition, smooth and precise air volume adjustment can maintain comfortable indoor temperature and humidity according to different needs, optimize the operating efficiency of the air conditioning system, effectively improve energy efficiency, and save operating costs. Traditional air volume adjustment methods may generate noise, especially during the adjustment process. However, precise adjustment of the adjustment plate and adjustment ring not only reduces the noise during air volume changes, but also ensures smoother and more uniform air flow, avoiding air turbulence or noise interference. This design is particularly suitable for patients who require rest, creating a quiet and comfortable treatment environment, reducing the impact on patients during rest, and facilitating their recovery.

[0024] 3. The present invention provides a filter maintenance mechanism. When the inner concave plate moves, the limit piece at the top contacts the rubber protrusion, compressing the spring rod and storing elastic potential energy. When the spring rod no longer contacts the rubber protrusion, one end of the spring rod will knock the rubber plate, generating vibration, which in turn causes the mounting plate to vibrate. This vibration assists in cleaning the filter body and can effectively loosen stubborn dirt attached to the filter body. Through the mechanical action of the spring rod, the rubber plate drives the mounting plate to vibrate, further enhancing the cleaning effect of the cleaning brush, so that the filter body can more thoroughly remove dust accumulation, maintain the optimal filtering state of the system, and thus improve air quality and cleanliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a main structural perspective diagram of a variable air volume control system for a hospital according to the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of a variable air volume control system for a hospital according to the present invention;

[0027] Figure 3 This is a structural schematic diagram of a fixed frame portion of a variable air volume control system for a hospital according to the present invention;

[0028] Figure 4 The present invention is a variable air volume control system for a hospital Figure 3 Enlarged view of point A in the middle;

[0029] Figure 5 The present invention is a variable air volume control system for a hospital Figure 3 Enlarged view of point B in the middle;

[0030] Figure 6 The present invention is a variable air volume control system for a hospital Figure 3 Enlarged view of point C in the middle;

[0031] Figure 7 This is a structural cross-sectional view of a storage box portion of a variable air volume control system for a hospital according to the present invention;

[0032] Figure 8 The present invention is a variable air volume control system for a hospital Figure 7 Enlarged view of point D in the middle;

[0033] Figure 9 This is a schematic structural diagram of a rack portion of a variable air volume control system for a hospital according to the present invention;

[0034] Figure 10 The present invention is a variable air volume control system for a hospital Figure 9 Enlarged view of point E in the middle;

[0035] Figure 11The figure is a schematic structural diagram of the regulating loop portion of a variable air volume control system for a hospital according to the present invention.

[0036] Figure: 1. Variable air volume control device body; 2. Protective grille; 3. Air supply device; 4. Air volume adjustment mechanism; 401. Drive motor; 402. Drive wheel; 403. Drive belt; 404. Drive ring; 405. Air outlet duct; 406. Fixing ring; 407. Adjustment plate; 408. Limiting column; 409. Adjustment slot; 410. Adjustment ring; 5. Hot and cold exchange coil body; 6. Filter maintenance mechanism; 601. Mounting plate; 602. Slide; 603. Motor 1; 604. Pull rope; 605. Drive rod; 606. Limiting plate; 607. Vacuum cleaner; 608 , concave plate; 609, fixing frame; 610, rack; 611, limiter; 612, spring rod; 613, storage box; 614, rubber protrusion; 615, rubber plate; 616, controller; 617, slide bar; 618, limit ring; 619, reset spring; 620, motor 2; 621, U-shaped fixing plate; 622, cleaning brush; 623, gear; 624, sealing plate; 625, coil spring; 626, sealing membrane; 627, compression spring; 628, baffle; 629, winding rod; 630, slider; 7, filter body; 8, base; 9, dust collection box. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] Please see the attached Figure 1 - Attachment Figure 11 As shown, the present invention provides a technical solution: a variable air volume control system for a hospital, comprising a variable air volume control device body 1, a filter maintenance mechanism 6 is provided on one side of the interior of the variable air volume control device body 1, an air volume adjustment mechanism 4 is provided on the other side of the interior of the variable air volume control device body 1, and a filter body 7 is provided inside the variable air volume control device body 1;

[0039] The filter maintenance mechanism 6 includes two sealing membranes 626. The sealing membranes 626 are used to cover the filter body 7, thereby effectively preventing dust or pollutants on the filter body 7 from leaking during the cleaning process of the filter body 7;

[0040] The air volume adjustment mechanism 4 includes an adjustment plate 407 and an adjustment ring 410. The adjustment plate 407 and the adjustment ring 410 cooperate with each other to linearly adjust the air volume of the variable air volume control device body 1, making the change of the air volume smoother. By presetting the above components, the air volume is precisely adjusted and the filter body 7 is automatically cleaned, thereby optimizing the air quality and comfort in the hospital. The sealing membrane 626 covers the filter body 7, effectively preventing dust or pollutants on the filter body 7 from leaking into the air when the filter body 7 is cleaned. Through this design, pollutants are controlled during the cleaning process, avoiding the air from being polluted again, and ensuring continuous air purification. The mutual cooperation of the adjustment plate 407 and the adjustment ring 410 enables the air volume of the variable air volume control device body 1 to be linearly adjusted. This design makes the change of the air volume smoother and more accurate, effectively avoiding energy waste caused by excessive or insufficient air volume, maintaining air circulation and comfortable temperature and humidity in the hospital, and is particularly suitable for wards and operating rooms that require a quiet environment.

[0041] Example 1, according to Figure 2 - Figure 10As shown, a winding rod 629 is inserted into the interior of the two sealing films 626, and one end of the two sealing films 626 is fixedly connected to the outer wall of the two winding rods 629 respectively. A storage box 613 is provided on the outside of the two sealing films 626, and the upper and lower ends of the two winding rods 629 are respectively rotatably connected to the inner wall of the top end of the storage box 613 and the inner wall of the bottom end of the storage box 613. The top of the two winding rods 629 and the bottom of the winding rods 629 are connected with a coil spring 625. The other ends of the two sealing films 626 pass through the two storage boxes 613 respectively. The other ends of the two sealing films 626 are fixedly connected to a baffle 628. The backs of the two storage boxes 613 are fixedly connected to a fixed frame 609. The inner sides of the two baffles 628 are fixedly connected to a rack 610. The two racks There are gears 623 meshing with each other between 610, and the outer walls of the two racks 610 are slidably connected with U-shaped fixed plates 621. The two U-shaped fixed plates 621 are respectively fixedly connected to the front sides of the two fixed frames 609. The top of one of the fixed frames 609 is fixedly connected to the motor 1 603. The tops of the two fixed frames 609 are fixedly connected to the limit plates 606. The output end of the motor 1 603 is fixedly connected to the transmission rod 605. One end of the transmission rod 605 passes through each limit plate 606. Four pull ropes 604 are wound around the outer wall of the transmission rod 605. The bottom ends of the two adjacent pull ropes 604 pass through the fixed frame 609 and are respectively fixedly connected with the inner concave plates 608. The two inner concave plates 608 are slidably connected to the inner side of the fixed frame 609. Each inner concave plate 608 The bottom end is connected to two vacuum cleaners 607, and the top two sides of each concave plate 608 are fixedly connected to the limiting members 611. The inner side of each limiting member 611 is fixedly connected to a spring rod 612. The bottom ends of the two fixed frames 609 are fixedly connected to the base 8. The inner sides of the two fixed frames 609 are fixedly connected to the compression springs 627. One end of each compression spring 627 is fixedly connected to the sealing plate 624. The top of the base 8 is slidably connected to the mounting plate 601. The two filter bodies 7 are connected to the middle of the mounting plate 601. The top of the base 8 is provided with two sliding grooves 602. The inner walls of the two sliding grooves 602 are slidably connected to sliders 630. The tops of the two sliders 630 are respectively fixedly connected to the bottom ends of the mounting plate 601. The outer sides are rotatably connected with return springs 619, one end of the two return springs 619 is provided with a slide bar 617, the inner walls of the two slide grooves 602 are fixedly connected with limit rings 618, one end of each slide bar 617 passes through the two limit rings 618, the inner sides of the two limit rings 618 are rotatably connected with one end of the two return springs 619, one side of the two slide bars 617 is provided with an integrated controller 616, the two integrated controllers 616 are respectively connected to the inner walls of the two slide grooves 602, a motor 2 620 is fixedly connected between the two fixed frames 609, the output end of the motor 2 620 is fixedly connected to the inner side of the gear 623, the top of the base 8 is fixedly connected to two dust boxes 9, and the two dust boxes 9 are respectively connected to the two adjacent vacuum cleaners 607.Four rubber plates 615 are fixedly connected to the front of the mounting plate 601. Each rubber plate 615 has a rubber protrusion 614 fixedly attached to its front. Cleaning brushes 622 are fixedly attached to the inner sides of the two recessed plates 608. The integrated controller 616 is electrically connected to motor 1 603, motor 2 620, and the vacuum cleaner 607. The front of the variable air volume control device body 1 is snap-fitted with a protective grille 2. The back of the variable air volume control device body 1 is connected to an air supply device 3. The heat exchange coil body 5 is mounted on the inner wall of the variable air volume control device body 1.

[0042] The effect achieved by the entire embodiment 1 is as follows: when the user starts the variable air volume control device body 1, the variable air volume control device body 1 will start the air supply device 3 to send air into the hot and cold exchange coil body 5. The hot and cold exchange coil is responsible for heating or cooling the air. Then the air enters the interior of the hospital ward through the protective grille 2. The filter body 7 inside the variable air volume control device body 1 will filter the air. However, when the filter body 7 is blocked, the ventilation volume will decrease, and the driving force of the wind will cause the filter body 7 to move. The filter body 7 drives the mounting plate 601 to move through the connection with the mounting plate 601. The slider 630 at the bottom of the mounting plate 601 compresses the return spring 619. One end of the return spring 619 triggers the slide bar 617, thereby activating the integrated controller 616. As the filter body 7 moves, the inner side of the filter body 7 will squeeze the sealing plate 624. The inner side of the sealing plate 624 is close to the mounting plate 601. The triggered integrated controller 616 starts motor 1 603 and motor 2 6 20. The start of motor 2 620 drives gear 623 to rotate, gear 623 meshes with two racks 610, racks 610 drive baffle 628 to move, baffle 628 further pulls out the sealing film 626 and closes the gap of fixed frame 609. When motor 1 603 is started, the output end of the motor drives the transmission rod 605 to rotate, and the transmission rod 605 tightens the pull rope 604, thereby driving the inner concave plate 608 to move on the inner wall of fixed frame 609. At this time, the integrated controller 616 is started. The vacuum cleaner 607 and the cleaning brush 622 on the concave plate 608 clean the filter body 7. The dust generated during the cleaning process is absorbed by the vacuum cleaner 607. At the same time, the movement of the concave plate 608 causes the limit piece 611 at the top to contact the rubber protrusion 614, squeezing the spring rod 612 and storing elastic potential energy. When the spring rod 612 no longer contacts the rubber protrusion 614, one end of it will knock the rubber plate 615, thereby causing the mounting plate 601 to vibrate, assisting in the cleaning of the filter body 7 and enhancing the cleaning effect.

[0043] It should be noted that the interior of the storage box 613 is connected with a coil spring 625. When the rack 610 drives the baffle 628 to move, the baffle 628 can drive the sealing film 626 to be pulled out of the storage box 613. When the cleaning is completed, the filter body 7 restores the ventilation volume, and the filter body 7 is driven by the reset spring 619 to reset. At this time, one end of the slide bar 617 is away from the trigger end of the integrated controller 616, and the motor 2 620 and the motor 1 603 are reset respectively. The motor 2 620 can drive the gear 623 to rotate, and the gear 623 respectively engages the two racks 610 to reset. The rack 610 can push the baffle 628. At this time, the winding rod 629 is affected by the coil spring 625, and the coil spring 625 can drive the winding to rotate, and the winding rod 629 can wind the sealing film 626. The dust absorbed by the vacuum cleaner 607 is stored inside the dust box 9. The integrated controller 616 has multiple built-in control switches. The integrated controller 616 will drive motor 1 603, motor 2 620 and vacuum cleaner 607 to start. Motor 1 603 and motor 2 620 will stop and reset according to the preset integrated controller 616 instruction control. Through the preset speed setting of the integrated controller 616, the speed of motor 1 603 and motor 2 620 can be accurately adjusted according to actual needs.

[0044] Example 2, according to Figure 1 - Figure 2 and Figure 11 As shown, the outer walls of the two adjustment rings 410 are fixedly connected to the transmission ring 404, the front sides of the two adjustment rings 410 are provided with adjustment grooves 409, the inner walls of the two adjustment grooves 409 are slidably connected to the limit columns 408, and the two limit columns 408 are respectively rotatably connected to the outer sides of each adjustment plate 407, the front side of the heat exchange coil body 5 is fixedly connected to two air outlet pipes 405, the front sides of the two air outlet pipes 405 are fixedly connected to the fixing rings 406, the inner sides of the two fixing rings 406 are respectively rotatably connected to the two adjustment plates 407, the top end of the inner wall of the variable air volume control device body 1 is fixedly connected to the transmission motor 401, the output end of the transmission motor 401 is fixedly connected to the transmission wheel 402, and a transmission belt 403 is sleeved between the transmission wheel 402 and the two transmission rings 404.

[0045] The effect achieved by the entire embodiment 2 is: when the user needs to adjust the variable air volume, the transmission motor 401 can be started, and the output end of the transmission motor 401 drives the transmission wheel 402 to rotate, and the transmission wheel 402 drives the two transmission rings 404 to rotate through the transmission belt 403, and the two transmission rings 404 respectively drive the adjustment ring 410 to rotate, and the adjustment ring 410 drives the adjustment groove 409 to squeeze the limiting column 408, and the limiting column 408 slides along the inner wall of the adjustment groove 409. The movement of the limiting column 408 drives the adjustment plate 407 to rotate, thereby adjusting the ventilation volume of the fixed ring 406. This adjustment method not only reduces costs, but also reduces the noise generated during the adjustment process. It is more friendly to patients who need to rest and provides a quiet and comfortable medical environment.

[0046] It should be noted that compared to traditional air volume control methods, this method reduces friction and uneven movement of mechanical components, thereby reducing noise. Traditional air volume control methods, such as manual or mechanical damper control, can cause loud noise due to the rapid opening and closing of dampers and uneven adjustment, especially under high air speeds and heavy loads. In hospitals, a quiet environment is crucial for patient recovery. Reducing noise can provide a more comfortable and quiet environment, especially in wards, preventing noise from affecting patients' rest and treatment.

[0047] The working principle of the whole device is as follows: when the user starts the variable air volume control device body 1, the variable air volume control device body 1 will start the air supply device 3 to send air into the hot and cold exchange coil body 5. The hot and cold exchange coil is responsible for heating or cooling the air. Then the air enters the interior of the hospital ward through the protective grille 2. The filter body 7 inside the variable air volume control device body 1 will filter the air. However, when the filter body 7 is blocked, the ventilation volume will decrease, and the driving force of the wind will cause the filter body 7 to displace. The filter body 7 drives the mounting plate 601 to move through the connection with the mounting plate 601. The slider 630 at the bottom of the mounting plate 601 compresses the reset spring 619, and the reset spring One end of the spring 619 triggers the slide bar 617, which in turn activates the integrated controller 616. As the filter body 7 moves, the inner side of the filter body 7 will squeeze the sealing plate 624. The inner side of the sealing plate 624 is close to the mounting plate 601. The triggered integrated controller 616 starts the motor 1 603 and the motor 2 620. The start of the motor 2 620 drives the gear 623 to rotate. The gear 623 engages with the two racks 610. The racks 610 drive the baffle 628 to move. The baffle 628 further pulls out the sealing film 626 and closes the gap of the fixed frame 609. When the motor 1 603 is started, the output end of the motor drives the transmission rod 605 to rotate, and the transmission rod 605 makes The pull rope 604 is tightened, thereby driving the concave plate 608 to move on the inner wall of the fixed frame 609. At this time, the integrated controller 616 starts the vacuum cleaner 607, and the cleaning brush 622 on the concave plate 608 cleans the filter body 7. The dust generated during the cleaning process is absorbed by the vacuum cleaner 607. At the same time, the movement of the concave plate 608 causes the top limit piece 611 to contact the rubber protrusion 614, squeezing the spring rod 612 and storing elastic potential energy. When the spring rod 612 no longer contacts the rubber protrusion 614, one end of it will knock on the rubber plate 615, thereby causing the mounting plate 601 to vibrate, assisting in the cleaning of the filter body 7 and enhancing the cleaning effect. When the user needs to adjust the variable air volume , the transmission motor 401 can be started, and the output end of the transmission motor 401 drives the transmission wheel 402 to rotate. The transmission wheel 402 drives the two transmission rings 404 to rotate through the transmission belt 403. The two transmission rings 404 respectively drive the adjustment ring 410 to rotate. The adjustment ring 410 drives the adjustment groove 409 to squeeze the limiting column 408. The limiting column 408 slides along the inner wall of the adjustment groove 409. The movement of the limiting column 408 drives the adjustment plate 407 to rotate, thereby adjusting the ventilation volume of the fixed ring 406. This adjustment method not only reduces costs, but also reduces the noise generated during the adjustment process. It is more friendly to patients who need to rest and provides a quiet and comfortable medical environment.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A variable air volume control system for a hospital, comprising a variable air volume control device body (1), characterized in that: A filter maintenance mechanism (6) is provided on one side of the interior of the variable air volume control device body (1), an air volume adjustment mechanism (4) is provided on the other side of the interior of the variable air volume control device body (1), and a filter body (7) is provided on the interior of the variable air volume control device body (1); A filter maintenance mechanism (6), the filter maintenance mechanism (6) comprising two sealing membranes (626), the sealing membranes (626) being used to cover the filter body (7), thereby effectively preventing dust or pollutants on the filter body (7) from leaking during the cleaning process of the filter body (7); An air volume adjustment mechanism (4), the air volume adjustment mechanism (4) comprising an adjustment plate (407) and an adjustment ring (410), wherein the adjustment plate (407) and the adjustment ring (410) cooperate with each other to linearly adjust the air volume of the variable air volume control device body (1), thereby making the change of the air volume smoother; A winding rod (629) is inserted into the interior of the two sealing films (626), one end of the two sealing films (626) is fixedly connected to the outer wall of the two winding rods (629), and a storage box (613) is provided outside the two sealing films (626). The upper and lower ends of the two winding rods (629) are respectively rotatably connected to the inner wall of the top end of the storage box (613) and the inner wall of the bottom end of the storage box (613). The top of the two winding rods (629) and the bottom of the winding rods (629) are both connected to a coil spring (625). The other end of the two sealing films (626) The two sealing films (626) respectively penetrate the two storage boxes (613), the other ends of the two sealing films (626) are fixedly connected to the baffles (628), the backs of the two storage boxes (613) are fixedly connected to the fixed frames (609), the inner sides of the two baffles (628) are fixedly connected to the racks (610), the two racks (610) are meshed with each other by a gear (623), the outer walls of the two racks (610) are slidably connected to the U-shaped fixing plates (621), and the two U-shaped fixing plates (621) are fixedly connected to the fronts of the two fixing frames (609), respectively. The top of one of the fixed frames (609) is fixedly connected to a motor 1 (603), the tops of the two fixed frames (609) are fixedly connected to a limit plate (606), the output end of the motor 1 (603) is fixedly connected to a transmission rod (605), one end of the transmission rod (605) passes through each limit plate (606), four pull ropes (604) are wound around the outer wall of the transmission rod (605), the bottom ends of the two adjacent pull ropes (604) pass through the fixed frame (609) and are fixedly connected to an inner concave plate (608), the two inner concave plates (608) are fixedly connected to the output end of the motor 1 (603), one end of the transmission rod (605) passes through each limit plate (606), four pull ropes (604) are wound around the outer wall of the transmission rod (605), the bottom ends of the two adjacent pull ropes (604) pass through the fixed frame (609) and are fixedly connected to an inner concave plate (608) respectively. ) is slidably connected to the inner side of the fixed frame (609), the bottom end of each of the concave plates (608) is connected to two vacuum cleaners (607), both sides of the top end of each of the concave plates (608) are fixedly connected to limiting members (611), the inner side of each limiting member (611) is fixedly connected to a spring rod (612), the bottom ends of the two fixed frames (609) are fixedly connected to a base (8), the inner sides of the two fixed frames (609) are fixedly connected to a compression spring (627), and one end of each compression spring (627) is fixedly connected to a sealing plate (624); The top of the base (8) is slidably connected to a mounting plate (601), the two filter bodies (7) are connected to the middle of the mounting plate (601), the top of the base (8) is provided with two slide grooves (602), the inner walls of the two slide grooves (602) are slidably connected to sliders (630), and the tops of the two sliders (630) are respectively fixedly connected to the bottom of the mounting plate (601).

2. A variable air volume control system for a hospital according to claim 1, characterized in that: The outer sides of the two sliders (630) are rotatably connected to the return springs (619), one end of the two return springs (619) is provided with a slide rod (617), the inner walls of the two slide grooves (602) are fixedly connected to the limit rings (618), one end of each slide rod (617) passes through the two limit rings (618), the inner sides of the two limit rings (618) are rotatably connected to one end of the two return springs (619), one side of the two slide rods (617) is provided with a controller (616), and the two controllers (616) are respectively connected to the inner walls of the two slide grooves (602).

3. A variable air volume control system for a hospital according to claim 2, characterized in that: A second motor (620) is fixedly connected between the two fixed frames (609), the output end of the second motor (620) is fixedly connected to the inner side of the gear (623), the top of the base (8) is fixedly connected to two dust collection boxes (9), the two dust collection boxes (9) are respectively connected to two adjacent vacuum cleaners (607), the front of the mounting plate (601) is fixedly connected to four rubber plates (615), the front of each rubber plate (615) is fixedly connected to a rubber protrusion (614), the inner sides of the two concave plates (608) are fixedly connected to a cleaning brush (622), and the controller (616) is electrically connected to the first motor (603), the second motor (620) and the vacuum cleaner (607).

4. The variable air volume control system for a hospital according to claim 1, characterized in that: The front of the variable air volume control device body (1) is snap-connected with a protective grille (2), the back of the variable air volume control device body (1) is connected with an air supply device (3), and the inner wall of the variable air volume control device body (1) is installed with a cold and hot exchange coil body (5).

5. The variable air volume control system for a hospital according to claim 4, characterized in that: The outer walls of the two adjustment rings (410) are fixedly connected to the transmission ring (404), the front faces of the two adjustment rings (410) are provided with adjustment grooves (409), the inner walls of the two adjustment grooves (409) are slidably connected to limit posts (408), the two limit posts (408) are respectively rotatably connected to the outer sides of each adjustment plate (407), and the front face of the heat exchange coil body (5) is fixedly connected to two air outlet pipes (405).

6. The variable air volume control system for a hospital according to claim 5, characterized in that: The front faces of the two air outlet pipes (405) are fixedly connected to fixed rings (406), the inner sides of the two fixed rings (406) are rotatably connected to two adjustment plates (407), the top end of the inner wall of the variable air volume control device body (1) is fixedly connected to a transmission motor (401), the output end of the transmission motor (401) is fixedly connected to a transmission wheel (402), and a transmission belt (403) is sleeved between the transmission wheel (402) and the two transmission rings (404).

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