A respiratory isolation device for use with patients in an infectious disease unit

Abstract

The present application relates to the technical field of respiratory isolation device, disclose a kind of for infectious disease department ward patient's respiratory isolation device, including isolation ward, the top of the isolation ward is fixedly connected with support seat, the output end of drive motor is fixedly connected with rotating shaft, the bottom of the rotating shaft is fixedly connected with first driving wheel, the outer wall of the first driving wheel is installed with first belt, the inner wall of one end of the first belt is installed with first driven wheel, the inner wall of the first driven wheel is fixedly connected with rotating shaft, one side of the first belt is fixedly connected with connecting rod, one end of the connecting rod is fixedly connected with connecting pipe, one end of the connecting pipe is fixedly connected with collection cover. By drive motor drives first driving wheel to rotate, by first belt, so that first driven wheel drives rotating shaft to rotate, the rotation of first belt promotes connecting rod to move, finally drives collection cover to move flexibly, realize the position of dynamic moving collection cover, maximum degree collection patient's exhaled gas.

Description

Technical Field

[0001] This invention relates to the field of respiratory isolation devices, specifically a respiratory isolation device for patients in infectious disease wards. Background Technology

[0002] Infectious disease wards are used to treat patients with various respiratory infectious diseases. The droplets and aerosols produced by patients' breathing and coughing carry a large number of pathogens such as bacteria and viruses, which can easily spread in the ward and cause nosocomial cross-infection, posing a serious threat to the health of medical staff and patients in the same room. Negative pressure wards, by creating an indoor negative pressure environment and directional airflow, can effectively prevent pollutants in the ward from spreading outward. They are the core isolation facilities for critically ill patients, and therefore, negative pressure wards can be used to isolate patients' breathing.

[0003] Traditional respiratory isolation devices, such as exhaust hoods, are usually fixed in one place. This can lead to the ineffective collection of air containing droplets and aerosols exhaled by patients, resulting in a large amount of leakage into the isolation ward. This fails to block the spread of infectious microorganisms and increases the risk of cross-infection for medical staff and those in the surrounding area. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a respiratory isolation device for patients in infectious disease wards. It solves the problem that traditional respiratory isolation devices, where the exhaust hood is usually fixed in one position, cannot effectively collect the gas containing droplets and aerosols exhaled by patients, resulting in a large amount of leakage into the isolation ward. This fails to block the spread of infectious microorganisms and increases the risk of cross-infection for medical staff and surrounding personnel.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a respiratory isolation device for patients in an infectious disease ward, comprising a base plate, an isolation ward fixedly connected to the top of the base plate, a support base fixedly connected to the top of the isolation ward, a drive motor mounted on the inner wall of the support base, a rotating shaft fixedly connected to the output end of the drive motor, a rotating shaft rotatably connected to the top of the isolation ward on the outer wall of the rotating shaft, a first drive wheel fixedly connected to the bottom of the rotating shaft, a first belt mounted on the outer wall of the first drive wheel, a first driven wheel mounted on the inner wall of one end of the first belt, a rotating shaft fixedly connected to the inner wall of the first driven wheel, a rotating shaft rotatably connected to the top of the isolation ward on the outer wall of the rotating shaft, a connecting rod fixedly connected to one side of the first belt, a connecting pipe fixedly connected to one end of the connecting rod, a collection hood fixedly connected to one end of the connecting pipe, and an exhaust assembly mounted on the top of the isolation ward.

[0006] By adopting the above technical solution, when there is a patient in the isolation ward, the drive motor is started, and its output end drives the first driving wheel to rotate. With the help of the first belt, the first driven wheel rotates accordingly, which in turn drives the shaft to rotate. The rotation of the first belt causes the connecting rod to move, which in turn drives the collection hood to move flexibly. The position of the collection hood can be dynamically moved according to the patient's position and activity, so as to collect the patient's exhaled gas to the maximum extent, significantly improve the efficiency of respiratory isolation, effectively reduce the risk of pathogens spreading in the ward, and reduce the risk of cross-infection among medical staff and surrounding personnel.

[0007] Preferably, the exhaust assembly includes an exhaust pipe, one end of which is fixedly connected to the top of the isolation ward, and symmetrical support columns are fixedly connected to the inner wall of one end of the exhaust pipe. A negative pressure motor is installed on one side of the two support columns opposite to each other, and fan blades are evenly fixedly connected to the output end of the negative pressure motor.

[0008] Preferably, the outer wall of the exhaust pipe is slidably connected to an installation frame, and filter plates are symmetrically arranged inside the installation frame. A groove is opened in the middle of the exhaust pipe, and the outer wall of the filter plate is slidably connected to the groove.

[0009] Preferably, a mounting plate is fixedly connected to the top of the two filter plates, and the bottom of the mounting plate is located at the top of the mounting frame.

[0010] Preferably, a fixing plate is fixedly connected to the top of the exhaust pipe, and slide rods are slidably connected evenly inside the fixing plate. One end of each slide rod is fixedly connected to one side of the mounting frame, and a limit block is fixedly connected to the other end of the slide rod. Tension springs are evenly fixedly connected to one side of the fixing plate, and one end of each tension spring is fixedly connected to one side of the mounting frame. The inner wall of each tension spring is fitted onto the outer wall of the slide rod.

[0011] Preferably, an electric push rod is installed on the top of the mounting frame, and a connecting plate is rotatably connected to the output end of the electric push rod. A connecting rod is fixedly connected to the bottom of one end of the connecting plate, and a pressing plate is fixedly connected to the bottom of the connecting rod.

[0012] Preferably, a second driving wheel is fixedly connected to the top of the rotating shaft, a second belt is installed on the outer wall of the second driving wheel, a second driven wheel is provided on the inner wall of one end of the second belt, a rotating rod is fixedly connected to the inner wall of the second driven wheel, the outer wall of the rotating rod is rotatably connected to the top of the isolation ward, a cam is fixedly connected to the top of the rotating rod, a push plate is fixedly connected to the bottom of the mounting frame, and the protruding end of the cam is set to fit against one side of the push plate when it moves.

[0013] Preferably, a ventilation mesh is provided on one side of the isolation ward, and a movable door is hinged to the other side of the isolation ward, with a handle fixedly connected to one side of the movable door.

[0014] Preferably, a support plate is fixedly connected to the inner wall of the top of the isolation ward, and a conveying pipe is fixedly connected inside the support plate. One end of the conveying pipe is located inside the exhaust pipe, and a corrugated pipe is fixedly connected to the other end of the conveying pipe. One end of the corrugated pipe is fixedly connected to the outer wall of the connecting pipe.

[0015] Preferably, a protective cover is fixedly connected to the top of the isolation ward, and a hospital bed is installed on the top of the base plate.

[0016] Working principle: When the patient is on the bed inside the isolation ward, the drive motor is started. The output end of the drive motor drives the rotating shaft to rotate. The rotating shaft drives the first driving wheel to rotate. The first driving wheel drives the first driven wheel and the rotating shaft to rotate through the first belt. The first belt drives the connecting rod, connecting pipe and collection cover to move. The corrugated pipe extends and retracts synchronously with the collection cover. When the negative pressure motor is started, the output end of the negative pressure motor drives the fan blades to rotate at high speed, creating a negative pressure in the exhaust pipe. The gas in the ward and the gas collected by the collection hood enter the exhaust pipe through the corrugated pipe and the delivery pipe, and are discharged after being filtered by the exhaust pipe. When the shaft rotates, it drives the second driving wheel to rotate. The second driving wheel drives the second driven wheel and the rotating rod to rotate via the second belt. The rotating rod drives the cam to rotate. The cam's protruding end presses against the push plate. The push plate drives the mounting frame and filter plate to slide in the groove. The tension spring is compressed and deformed. After the cam disengages from the push plate, the tension spring drives the mounting frame and filter plate to reset, causing the filter plate to vibrate. The filter plate consists of a HEPA filter element and an activated carbon filter layer. The HEPA filter element will first come into contact with the collected gas, which can effectively intercept infectious microorganisms such as bacteria and viruses in droplets and aerosols. The activated carbon filter layer can adsorb odors generated during breathing. The electric push rod drives the connecting plate, connecting rod and pressing plate to fix and remove the filter plate. Outside air enters the isolation ward through the ventilation mesh plate. The movable door allows personnel to enter and exit. The protective cover protects the top structure of the isolation ward.

[0017] This invention provides a respiratory isolation device for patients in infectious disease wards. It has the following beneficial effects: 1. This invention starts a drive motor, whose output drives the first driving wheel to rotate. With the help of the first belt, the first driven wheel rotates accordingly, which in turn drives the shaft to rotate. The rotation of the first belt causes the connecting rod to move, which in turn drives the collection hood to move flexibly. It can dynamically move the position of the collection hood according to the patient's position and activity, so as to collect the patient's exhaled gas to the maximum extent, significantly improve the efficiency of respiratory isolation, effectively reduce the risk of pathogens spreading in the ward, and reduce the risk of cross-infection among medical staff and surrounding personnel.

[0018] 2. In this invention, the first driven wheel rotates simultaneously with the second driving wheel via a rotating shaft. The second driven wheel rotates via a second belt, which in turn rotates the rotating rod. The rotating rod then rotates the cam. When the cam's protruding end moves and contacts one side of the push plate, it exerts a squeezing effect on the push plate, causing the mounting frame to slide on the outer wall of the exhaust pipe and the filter plate to slide within the groove. At this time, the tension spring is compressed. When the cam continues to move and no longer contacts the push plate, the tension spring generates a reaction force, causing the mounting frame and filter plate to move in opposite directions. This process repeats, achieving a vibration effect. This prevents the filter plate from clogging, ensures smooth gas passage, and guarantees the filtration effect.

[0019] 3. When installing the filter plate, it is installed through the exhaust pipe from the top of the mounting frame, with the bottom of the filter plate placed on the inner wall of the bottom of the mounting frame. Then, the connecting plate is rotated so that the pressing plate is directly above the mounting plate. The electric push rod shortens, causing the pressing plate to press against the mounting plate, thus stabilizing and fixing the filter plate. When removing the filter plate, the electric push rod extends, driving the pressing plate and connecting plate upward. Then, the connecting plate is rotated so that the pressing plate turns to one side of the mounting plate, releasing the fixing of the mounting plate. The mounting plate and filter plate can then be easily removed, facilitating maintenance of the filter plate and ensuring that the filtration system is always in optimal working condition. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial structural diagram of the isolation ward of the present invention; Figure 3 This is a partial structural diagram of the exhaust pipe of the present invention; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a partial structural diagram of the collection cover of the present invention; Figure 6 This is a partial structural diagram of the filter plate of the present invention; Figure 7 for Figure 6 Enlarged structural diagram at point B; Figure 8 This is a partial structural diagram of the mounting frame of the present invention; Figure 9 This is a partial structural diagram of the fixing plate of the present invention.

[0021] The components include: 1. Base plate; 2. Isolation ward; 201. Support base; 202. Drive motor; 203. Rotating shaft; 204. First driving wheel; 205. First belt; 206. First driven wheel; 207. Rotating shaft; 208. Connecting rod; 209. Connecting pipe; 210. Collection cover; 3. Exhaust pipe; 301. Support column; 302. Negative pressure motor; 303. Fan blade; 4. Mounting frame; 401. Filter plate; 402. Slide groove; 403. Mounting plate; 5. Fixing 501. Plate; 502. Slide rod; 503. Limiting block; 504. Tension spring; 6. Electric push rod; 605. Connecting plate; 606. Connecting rod; 607. Pressing plate; 708. Second driving wheel; 709. Second belt; 700. Second driven wheel; 700. Rotating rod; 701. Cam; 702. Push plate; 803. Ventilation mesh plate; 804. Movable door; 805. Handle; 906. Support plate; 907. Conveying pipe; 908. Corrugated pipe; 10. Protective cover; 1001. Hospital bed. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 -Appendix Figure 5 This invention provides a respiratory isolation device for patients in an infectious disease ward, comprising a base plate 1, an isolation ward 2 fixedly connected to the top of the base plate 1, a support base 201 fixedly connected to the top of the isolation ward 2, a drive motor 202 mounted on the inner wall of the support base 201, a rotating shaft 203 fixedly connected to the output end of the drive motor 202, the outer wall of the rotating shaft 203 rotatably connected to the top of the isolation ward 2, a first drive wheel 204 fixedly connected to the bottom of the rotating shaft 203, a first belt 205 mounted on the outer wall of the first drive wheel 204, a first driven wheel 206 mounted on the inner wall of one end of the first belt 205, a rotating shaft 207 fixedly connected to the inner wall of the first driven wheel 206, the outer wall of the rotating shaft 207 rotatably connected to the top of the isolation ward 2, a connecting rod 208 fixedly connected to one side of the first belt 205, a connecting pipe 209 fixedly connected to one end of the connecting rod 208, a collection hood 210 fixedly connected to one end of the connecting pipe 209, and an exhaust assembly mounted on the top of the isolation ward 2.

[0024] Specifically, when there is a patient in isolation ward 2, the drive motor 202 is started, and the output end of the drive motor 202 generates rotational power, which drives the rotating shaft 203 to rotate. In turn, the rotating shaft 203 drives the first drive wheel 204 to rotate. The first drive wheel 204 begins to perform circular motion. Through the cooperation of the first belt 205, the rotation of the first drive wheel 204 is transmitted to the first driven wheel 206. The first driven wheel 206 rotates accordingly, which in turn drives the rotating shaft 207 to rotate. During the rotation of the first belt 205, the connecting rod 208 will move. The movement of the connecting rod 208 will ultimately drive the collection hood 210 to move flexibly along the movement trajectory of the first belt 205, thereby realizing the dynamic movement of the position of the collection hood 210, maximizing the collection of the patient's exhaled gas, significantly improving the efficiency of respiratory isolation, effectively reducing the risk of pathogen spread in the ward, and reducing the risk of cross-infection among medical staff and surrounding personnel. With the cooperation of the exhaust component, a stable airflow is formed in isolation ward 2, ensuring continuous air renewal in the ward.

[0025] Please see the appendix Figure 6 The exhaust assembly includes an exhaust pipe 3. One end of the exhaust pipe 3 is fixedly connected to the top of the isolation ward 2. Support columns 301 are symmetrically fixedly connected to the inner wall of one end of the exhaust pipe 3. A negative pressure motor 302 is installed on the opposite side of the two support columns 301. Fan blades 303 are evenly fixedly connected to the output end of the negative pressure motor 302.

[0026] Specifically, the negative pressure motor 302 is started, and the output end of the negative pressure motor 302 drives the fan blade 303 to rotate at high speed. When the fan blade 303 rotates at high speed, a strong negative pressure is generated in the exhaust pipe 3. The negative pressure environment causes the gas in the isolation ward 2 to quickly enter the exhaust pipe 3. After the gas in the isolation ward 2 enters the exhaust pipe 3, a stable airflow is formed, ensuring that the air in the ward is continuously renewed, maintaining the negative pressure state, effectively preventing the gas in the isolation ward 2 from spreading outward at will, achieving the effect of respiratory isolation, and strengthening the infection control effect.

[0027] Please see the appendix Figure 6 -Appendix Figure 9 The outer wall of the exhaust pipe 3 is slidably connected to the mounting frame 4, and the interior of the mounting frame 4 is symmetrically provided with filter plates 401. The middle part of the exhaust pipe 3 is provided with a sliding groove 402, and the outer wall of the filter plate 401 is slidably connected in the sliding groove 402. A mounting plate 403 is fixedly connected to the top of the two filter plates 401, and the bottom of the mounting plate 403 is set at the top of the mounting frame 4; A fixing plate 5 is fixedly connected to the top of the exhaust pipe 3. A slide rod 501 is evenly slidably connected inside the fixing plate 5. One end of the slide rod 501 is fixedly connected to one side of the mounting frame 4. A limit block 502 is fixedly connected to the other end of the slide rod 501. Tension springs 503 are evenly fixedly connected to one side of the fixing plate 5. One end of the tension spring 503 is fixedly connected to one side of the mounting frame 4. The inner wall of the tension spring 503 is respectively fitted onto the outer wall of the slide rod 501. A second driving wheel 7 is fixedly connected to the top of the rotating shaft 207. A second belt 701 is installed on the outer wall of the second driving wheel 7. A second driven wheel 702 is provided on the inner wall of one end of the second belt 701. A rotating rod 703 is fixedly connected to the inner wall of the second driven wheel 702. The outer wall of the rotating rod 703 is rotatably connected to the top of the isolation ward 2. A cam 704 is fixedly connected to the top of the rotating rod 703. A push plate 705 is fixedly connected to the bottom of the mounting frame 4. When the cam 704 moves, it is set to fit against one side of the push plate 705.

[0028] Specifically, the gas entering the exhaust pipe 3 passes through two filter plates 401 in sequence. The filter plates 401 are a HEPA filter and an activated carbon filter layer. The HEPA filter will come into contact with the collected gas first, which can effectively intercept infectious microorganisms such as bacteria and viruses in droplets and aerosols, providing the first safety barrier for the air in the isolation ward 2. The activated carbon filter layer can absorb odors generated during breathing, improve the patient's breathing experience, and create a relatively comfortable treatment environment. As the rotating shaft 207 drives the first driven wheel 206 to rotate, the second driving wheel 7 at the top of the rotating shaft 207 also rotates, driving the second driven wheel 702 to rotate via the second belt 701, which in turn causes the rotating rod 703 to rotate. The rotating rod 703 drives the cam 704 to rotate. When the protruding end of the cam 704 moves and abuts against one side of the push plate 705, it exerts a squeezing effect on the push plate 705. Since the push plate 705 is fixedly connected to the bottom of the mounting frame 4, the mounting frame 4 slides on the outer wall of the exhaust pipe 3, while the filter plate 401 moves within the groove 402. When sliding, the tension spring 503 is compressed. When the cam 704 continues to move and no longer contacts the push plate 705, the tension spring 503 generates a reaction force, causing the mounting frame 4 and the filter plate 401 to move in opposite directions. This is repeated to achieve a vibration effect, which can prevent the filter plate 401 from clogging, ensure smooth gas passage, and ensure the filtration effect. Moreover, the inner wall of the mounting frame 4 is in close contact with the outer wall of the exhaust pipe 3. When the filter plate 401 and the mounting frame 4 move, the mounting frame 4 will not cause the slide groove 402 to leak out, effectively avoiding air leakage and preventing pathogen leakage.

[0029] Please see the appendix Figure 6 -Appendix Figure 9An electric push rod 6 is installed on the top of the mounting frame 4. The output end of the electric push rod 6 is rotatably connected to a connecting plate 601. A connecting rod 602 is fixedly connected to the bottom of one end of the connecting plate 601. A pressing plate 603 is fixedly connected to the bottom of the connecting rod 602.

[0030] Specifically, when installing the filter plate 401, it is installed through the exhaust pipe 3 from the top of the mounting frame 4, so that the bottom of the filter plate 401 is placed on the bottom inner wall of the mounting frame 4. Then, the connecting plate 601 is rotated so that the pressing plate 603 is located directly above the mounting plate 403. Then, the electric push rod 6 is shortened by controlling it, which drives the connecting plate 601 and the connecting rod 602 to move downward. The connecting rod 602 drives the pressing plate 603 to move downward, and the pressing plate 603 presses the mounting plate 403, so that the filter plate 401 is stably fixed. When the filter plate 401 needs to be removed for cleaning or replacement, the electric push rod 6 extends, driving the pressing plate 603 and the connecting plate 601 to move upward. Then, the connecting plate 601 is rotated so that the pressing plate 603 is turned to the side of the mounting plate 403, releasing the fixing of the mounting plate 403. The mounting plate 403 and the filter plate 401 can then be easily removed, facilitating the maintenance of the filter plate 401 and ensuring that the filtration system is always in optimal working condition.

[0031] Please see the appendix Figure 2 -Appendix Figure 3 One side of the isolation ward 2 is equipped with a ventilation mesh panel 8, and the other side of the isolation ward 2 is hinged with a movable door 801. A handle 802 is fixedly connected to one side of the movable door 801.

[0032] Specifically, the ventilation mesh panel 8 allows outside air to enter the isolation ward 2 after being filtered, ensuring fresh air in the ward and providing patients with a relatively comfortable breathing environment. The movable door 801 is hinged to the other side of the isolation ward 2. The handle 802 on one side of the movable door 801 makes it easy for people to open and close the movable door 801. The movable door 801 facilitates the entry and exit of personnel and provides convenience for medical staff to carry out treatment operations and for the transfer of patients.

[0033] Please see the appendix Figures 3-4 The top inner wall of the isolation ward 2 is fixedly connected to a support plate 9, and the inside of the support plate 9 is fixedly connected to a delivery pipe 901. One end of the delivery pipe 901 is set inside the exhaust pipe 3, and the other end of the delivery pipe 901 is fixedly connected to a corrugated pipe 902. One end of the corrugated pipe 902 is fixedly connected to the outer wall of the connecting pipe 209.

[0034] Specifically, by placing one end of the conveying pipe 901 below the fan blade 303, a negative pressure is generated inside the conveying pipe 901 when the fan blade 303 is operating. The gas collected by the collection hood 210 is conveyed to the exhaust pipe 3 through the corrugated pipe 902 and the conveying pipe 901, and discharged after filtration. The corrugated pipe 902 has an automatic extension and retraction characteristic, which allows it to cooperate with the movement of the collection hood 210 without affecting the normal operation of the collection hood 210, ensuring a smooth gas collection and conveying process.

[0035] Please see the appendix Figure 1 Appendix Figure 3 The top of the isolation ward 2 is fixedly connected to a protective cover 10, and a hospital bed 1001 is installed on the top of the base plate 1.

[0036] Specifically, the protective cover 10 fixedly connected to the top of the isolation ward 2 protects the top structure and prevents dust, foreign objects and other objects from entering and damaging the equipment. The top of the protective cover 10 is designed to be openable, making it easy to remove or install the filter plate 401, which facilitates the maintenance and management of the equipment. A hospital bed 1001 is installed on the top of the base plate 1 and is located inside the isolation ward 2. The hospital bed 1001 provides a comfortable resting place for patients, which is conducive to their treatment and recovery.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A respiratory isolation device for patients in an infectious disease ward, comprising a base plate (1), characterized in that: An isolation ward (2) is fixedly connected to the top of the base plate (1). A support base (201) is fixedly connected to the top of the isolation ward (2). A drive motor (202) is installed on the inner wall of the support base (201). A rotating shaft (203) is fixedly connected to the output end of the drive motor (202). The outer wall of the rotating shaft (203) is rotatably connected to the top of the isolation ward (2). A first drive wheel (204) is fixedly connected to the bottom of the rotating shaft (203). A first belt (205) is installed on the outer wall of the first drive wheel (204). A first driven wheel (206) is installed on the inner wall of one end of the first belt (205). A rotating shaft (207) is fixedly connected to the inner wall of the first driven wheel (206). The outer wall of the rotating shaft (207) is rotatably connected to the top of the isolation ward (2). A connecting rod (208) is fixedly connected to one side of the first belt (205). A connecting pipe (209) is fixedly connected to one end of the connecting rod (208). A collection cover (210) is fixedly connected to one end of the connecting pipe (209). An exhaust assembly is installed on the top of the isolation ward (2).

2. The respiratory isolation device for patients in an infectious disease ward according to claim 1, characterized in that: The exhaust assembly includes an exhaust pipe (3), one end of which is fixedly connected to the top of the isolation ward (2). Support columns (301) are symmetrically fixedly connected to the inner wall of one end of the exhaust pipe (3). A negative pressure motor (302) is installed on one side opposite to the two support columns (301). Fan blades (303) are evenly fixedly connected to the output end of the negative pressure motor (302).

3. A respiratory isolation device for patients in an infectious disease ward according to claim 2, characterized in that: The outer wall of the exhaust pipe (3) is slidably connected to the mounting frame (4), and the interior of the mounting frame (4) is symmetrically provided with filter plates (401). The middle part of the exhaust pipe (3) is provided with a sliding groove (402), and the outer wall of the filter plate (401) is slidably connected in the sliding groove (402).

4. A respiratory isolation device for patients in an infectious disease ward according to claim 3, characterized in that: The top of the two filter plates (401) is fixedly connected to the mounting plate (403), and the bottom of the mounting plate (403) is set on the top of the mounting frame (4).

5. A respiratory isolation device for patients in an infectious disease ward according to claim 2, characterized in that: A fixing plate (5) is fixedly connected to the top of the exhaust pipe (3). A sliding rod (501) is evenly slidably connected inside the fixing plate (5). One end of the sliding rod (501) is fixedly connected to one side of the mounting frame (4). The other end of the sliding rod (501) is fixedly connected to a limit block (502). Tension springs (503) are evenly fixedly connected to one side of the fixing plate (5). One end of the tension spring (503) is fixedly connected to one side of the mounting frame (4). The inner wall of the tension spring (503) is respectively fitted onto the outer wall of the sliding rod (501).

6. A respiratory isolation device for patients in an infectious disease ward according to claim 5, characterized in that: An electric push rod (6) is installed on the top of the mounting frame (4). The output end of the electric push rod (6) is rotatably connected to a connecting plate (601). A connecting rod (602) is fixedly connected to the bottom of one end of the connecting plate (601). A pressing plate (603) is fixedly connected to the bottom of the connecting rod (602).

7. A respiratory isolation device for patients in an infectious disease ward according to claim 6, characterized in that: The top of the rotating shaft (207) is fixedly connected to a second driving wheel (7), the outer wall of the second driving wheel (7) is equipped with a second belt (701), the inner wall of one end of the second belt (701) is provided with a second driven wheel (702), the inner wall of the second driven wheel (702) is fixedly connected to a rotating rod (703), the outer wall of the rotating rod (703) is rotatably connected to the top of the isolation ward (2), the top of the rotating rod (703) is fixedly connected to a cam (704), the bottom of the mounting frame (4) is fixedly connected to a push plate (705), and the protruding end of the cam (704) is set to fit against one side of the push plate (705) when it moves.

8. A respiratory isolation device for patients in an infectious disease ward according to claim 1, characterized in that: The isolation ward (2) is provided with a ventilation mesh panel (8) on one side and a movable door (801) is hinged on the other side of the isolation ward (2). A handle (802) is fixedly connected to one side of the movable door (801).

9. A respiratory isolation device for patients in an infectious disease ward according to claim 1, characterized in that: The top inner wall of the isolation ward (2) is fixedly connected to a support plate (9), and a delivery pipe (901) is fixedly connected inside the support plate (9). One end of the delivery pipe (901) is set inside the exhaust pipe (3), and the other end of the delivery pipe (901) is fixedly connected to a corrugated pipe (902). One end of the corrugated pipe (902) is fixedly connected to the outer wall of the connecting pipe (209).

10. A respiratory isolation device for patients in an infectious disease ward according to claim 1, characterized in that: The top of the isolation ward (2) is fixedly connected to a protective cover (10), and a bed (1001) is set on the top of the base plate (1).

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