Medical negative pressure isolation ward ventilation regulation and control assembly

Abstract

The invention relates to the technical field of ventilation assemblies, and discloses a medical negative pressure isolation ward ventilation regulation and control assembly which comprises a ward local wall body, a first ventilation pipe is installed in the ward local wall body, a second ventilation pipe is installed at the rear end of the first ventilation pipe through a side plate, and an external line disinfection pipe is installed on the inner side of the side plate. And an air inlet pipe is mounted at the rear end of the second ventilation pipe through a mounting plate. According to the medical negative pressure isolation ward ventilation regulation and control assembly, an external line disinfection pipe is installed between a first ventilation pipe and a second ventilation pipe, the positions of the two sides of the external line disinfection pipe are limited through side plates, meanwhile, a plug pin is installed in an installation sleeve to limit the position of the external line disinfection pipe, and the convenience of structure assembly and disassembly is ensured; and after the external wire disinfection pipe is detached, the bolt can be rotated to adjust the elasticity of the spring, and meanwhile, the activated carbon can be detached and replaced, so that the convenience is improved during subsequent maintenance.

Description

Technical Field

[0001] This invention relates to the field of ventilation component technology, specifically to ventilation control components for medical negative pressure isolation wards. Background Technology

[0002] Negative pressure isolation wards are an important design for controlling the spread of infectious diseases and are widely used in hospital infection control and public health prevention. By creating an air pressure lower than the surrounding environment, negative pressure isolation wards ensure that air within the ward does not leak out, thus protecting other areas from potential pathogen contamination.

[0003] During use, the ventilation system for negative pressure isolation wards requires the fan to be continuously running. When the fan stops, the gas inside the negative pressure isolation ward will be discharged outdoors through the ventilation ducts, which may lead to infection problems and pose a safety hazard. Therefore, we have proposed a ventilation control component for medical negative pressure isolation wards. Summary of the Invention

[0004] To address the shortcomings of existing ventilation control components for medical negative pressure isolation wards, this invention provides a ventilation control component for medical negative pressure isolation wards. This component features a one-way membrane installed inside a sealing plate. The one-way membrane drives unidirectional gas transport, preventing backflow. Simultaneously, as the gas is transported to the outside, activated carbon adsorbs the gas, and ultraviolet disinfection lamps disinfect the passing gas, reducing hazards and solving the problems mentioned in the background art.

[0005] This invention provides the following technical solution: a ventilation control component for a medical negative pressure isolation ward, comprising a first ventilation pipe, a second ventilation pipe installed at the rear end of the first ventilation pipe via a side plate, an external disinfection pipe installed on the inner side of the side plate, an air inlet pipe installed at the rear end of the second ventilation pipe via an mounting plate, a fan jacket installed at the front end of the first ventilation pipe, an activated carbon mounting frame installed inside the second ventilation pipe, activated carbon installed at equal intervals inside the activated carbon mounting frame, a sealing plate fixed in the middle of the interior of the first ventilation pipe, a one-way membrane installed at the front end of the interior of the sealing plate, a bolt threaded onto the end of the threaded rod, a control plate fixed at the front end of the interior of the first ventilation pipe, and auxiliary transmission pipes fixed on both sides of the fan jacket.

[0006] Preferably, the activated carbon has pores inside, and the activated carbon mounting frames are arranged at equal intervals inside the activated carbon mounting frames.

[0007] Preferably, a gear plate is fixed to the rear end of the activated carbon mounting frame, and a gear plate is installed on one side of the second ventilation pipe. The gear plate is sandwiched between the second ventilation pipe and the air inlet pipe, and the gear installed at one end of the output shaft meshes with the gear plate.

[0008] Preferably, a scraper is installed inside the air intake pipe, and the scraper is fitted to the rear end of the activated carbon mounting frame.

[0009] Preferably, a disinfection lamp bracket is installed inside the ultraviolet disinfection tube, and ultraviolet disinfection lamps are installed at equal intervals on the inner side of the disinfection lamp bracket. The ultraviolet disinfection lamps are installed between the activated carbon mounting frame and the sealing plate.

[0010] Preferably, an installation sleeve is installed at the top of the external disinfection tube, and a positioning pin is installed inside the installation sleeve. The two sides of the positioning pin penetrate the interior of the first ventilation tube and the second ventilation tube.

[0011] Preferably, a threaded rod is fixed to the rear end of the one-way membrane, and a spring is wound around the outside of the threaded rod. The threaded rod is installed between the sealing plate and the spring.

[0012] Preferably, a rotary valve is movably sleeved on the outside of the control plate, and a control sleeve sleeved on the outside of the rotary valve is fixed to the outside of the first ventilation pipe. Holes are aligned inside the control plate and the rotary valve.

[0013] Preferably, the fan jacket is installed inside the medical negative pressure isolation ward, the air inlet pipe is located outside the medical negative pressure isolation ward, the fan is installed inside the fan jacket, and the inner side of the auxiliary transmission pipe is installed between the rotary valve and the fan.

[0014] Compared with existing ventilation control components for negative pressure isolation wards, the present invention has the following advantages: 1. This ventilation control component for a medical negative pressure isolation ward is installed between the first and second ventilation ducts via an external disinfection pipe. The side plate limits the position of the external disinfection pipe on both sides, and the internal mounting pin of the mounting sleeve also limits the position of the external disinfection pipe, ensuring ease of assembly and disassembly. After the external disinfection pipe is disassembled, the bolts can be rotated to adjust the spring elasticity, and the activated carbon can be disassembled and replaced, ensuring improved convenience for subsequent maintenance.

[0015] 2. This ventilation control component for medical negative pressure isolation wards uses activated carbon to filter the air passing through, while ultraviolet disinfection lamps disinfect the air passing through, improving the cleanliness of the air delivered to the medical negative pressure isolation wards and preventing backflow and leakage of air inside the wards, thus reducing the harm of infectious gases and improving the safety of the ventilation control component during use.

[0016] 3. The ventilation control component of this medical negative pressure isolation ward uses a one-way membrane installed inside the first ventilation duct. When the fan starts, a pressure difference is generated, which drives the one-way membrane to move to one side, thereby transporting outside air into the medical negative pressure isolation ward. When the fan stops, the one-way membrane adheres to one side of the sealing plate, thus preventing the backflow of gas and improving the safety of the ventilation device during use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 For the present invention Figure 1 Side view structural diagram; Figure 3 For the present invention Figure 1 Schematic diagram of cross-section structure; Figure 4 This is a side view of the main body structure of the present invention; Figure 5 This is a cross-sectional view of the ultraviolet disinfection structure of the present invention; Figure 6 This is a partially enlarged structural diagram of the sealing assembly of the present invention; Figure 7 This is a partially enlarged schematic diagram of the control structure of the present invention.

[0018] In the diagram: 1. Partial wall of the ward; 2. First ventilation duct; 3. Side panel; 4. Second ventilation duct; 5. External disinfection duct; 6. Mounting sleeve; 7. Mounting plate; 8. Air inlet pipe; 9. Fan casing; 10. Activated carbon mounting frame; 11. Activated carbon; 12. Gear plate; 13. Disinfection lamp bracket; 14. Ultraviolet disinfection lamp; 15. Sealing plate; 16. One-way membrane; 17. Threaded rod; 18. Spring; 19. Bolt; 20. Control plate; 21. Rotary valve; 22. Control sleeve; 23. Auxiliary transmission pipe; 24. Scraper. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below 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.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7The ventilation control component for a medical negative pressure isolation ward includes a first ventilation pipe 2, which is embedded in and runs through a partial wall 1 of the ward to ensure communication between the negative pressure isolation ward and the outside. A sealing strip is installed between the partial wall 1 and the first ventilation pipe 2 to improve airtightness. A second ventilation pipe 4 is installed at the rear end of the first ventilation pipe 2 via a side plate 3. An ultraviolet disinfection pipe 5 is installed inside the side plate 3, between the first and second ventilation pipes 2. An ultraviolet disinfection lamp 14 is installed inside the ultraviolet disinfection pipe 5 to disinfect the passing air. An air inlet pipe 8 is installed at the rear end of the second ventilation pipe 4 via a mounting plate 7. A fan jacket 9 is installed at the front end of the first ventilation pipe 2. An activated carbon mounting frame 10 is installed inside the second ventilation pipe 4. Activated carbon 11 is installed at equal intervals inside the first ventilation pipe 2. The activated carbon 11 filters the passing gas to ensure that the gas delivered to the medical negative pressure isolation ward remains clean. A sealing plate 15 is fixed in the middle of the first ventilation pipe 2. A one-way membrane 16 is installed at the front end of the sealing plate 15. A bolt 19 is threaded onto the end of the threaded rod 17. The bolt 19 adjusts the pressure generated by the spring 18. A control plate 20 is fixed at the front end of the first ventilation pipe 2. Auxiliary transmission pipes 23 are fixed on both sides of the fan jacket 9. When the first ventilation pipe 2 is closed, the fan absorbs the gas inside the medical negative pressure isolation ward through the auxiliary transmission pipes 23 and outputs it through the fan jacket 9, ensuring that the fan can continue to operate and improving gas flow.

[0021] Please see Figure 3 The activated carbon 11 has pores inside, and the activated carbon mounting frame 10 is arranged at equal intervals inside the activated carbon mounting frame 10. The activated carbon 11 is installed inside the activated carbon mounting frame 10. When the equipment needs ventilation, the outside air is transmitted to the inside of the first ventilation pipe 2 through the activated carbon 11 and then to the inside of the negative pressure isolation ward. The activated carbon 11 filters the passing gas to reduce the transmission of harmful impurities in the air.

[0022] Please see Figure 3 A gear plate 12 is fixed to the rear end of the activated carbon mounting frame 10. A 25 is installed on one side of the second ventilation pipe 4. The gear plate 12 is clamped between the second ventilation pipe 4 and the air inlet pipe 8. The gear installed at one end of the output shaft of the 25 meshes with the gear plate 12. The 25 drives the gear plate 12 to mesh through the gear, that is, the 25 drives the activated carbon mounting frame 10 to rotate. When the activated carbon mounting frame 10 is rotating, the filtration effect of the activated carbon 11 is improved.

[0023] Please see Figure 2A scraper 24 is installed inside the air intake pipe 8. The scraper 24 is fitted to the rear end of the activated carbon mounting frame 10. When the activated carbon mounting frame 10 rotates, the scraper 24 contacts the rear end of the activated carbon mounting frame 10. The scraper 24 scrapes away impurities adhering to the rear end of the activated carbon mounting frame 10, preventing impurities from adhering to the rear end of the activated carbon mounting frame 10, improving the dust removal effect of the equipment, and thus preventing impurities from interfering with the gas and ventilation.

[0024] Please see Figure 3 and Figure 5 The disinfection tube 5 contains a disinfection lamp holder 13, and ultraviolet disinfection lamps 14 are installed at equal intervals on the inner side of the disinfection lamp holder 13. The ultraviolet disinfection lamps 14 are installed between the activated carbon mounting frame 10 and the sealing plate 15. When the ultraviolet disinfection lamps 14 are turned on, they emit light to disinfect the air passing through them, preventing harmful gases in the outside air from being transmitted into the negative pressure isolation ward. At the same time, when infectious gases in the negative pressure isolation ward are recirculated, the sealing plate 15 disinfects the recirculated negative pressure isolation ward, effectively improving the disinfection and sterilization effect and preventing the leakage of harmful gases that could cause safety hazards.

[0025] Please see Figure 5 An installation sleeve 6 is installed at the top of the external disinfection tube 5. A positioning pin is installed inside the installation sleeve 6. The two sides of the positioning pin pass through the interior of the first ventilation tube 2 and the second ventilation tube 4. The installation sleeve 6 is installed at the top of the external disinfection tube 5, and the positioning pin is installed inside the installation sleeve 6. The two sides of the positioning pin extend into the interior of the first ventilation tube 2 and the second ventilation tube 4. That is, the positioning pin maintains stability when the external disinfection tube 5 is positioned between the first ventilation tube 2 and the second ventilation tube 4. At the same time, side plates 3 are installed on both sides between the first ventilation tube 2 and the second ventilation tube 4. The side plates 3 limit the position of the external disinfection tube 5 and ensure the convenience of maintenance of the disinfection lamp bracket 13 and the ultraviolet disinfection lamp 14.

[0026] Please see Figure 6A threaded rod 17 is fixed to the rear end of the one-way membrane 16. A spring 18 is wound around the outside of the threaded rod 17. The threaded rod 17 is installed between the sealing plate 15 and the spring 18 and is installed on one side of the sealing plate 15 through the one-way membrane 16. At the same time, a threaded rod 17 penetrating the interior of the sealing plate 15 is installed at one end of the one-way membrane 16. The elasticity applied by the spring 18 is adjusted by rotating the bolt 19. At the same time, the one-way membrane 16 blocks the interior of the sealing plate 15. When the fan is started, the fan creates a pressure difference, which drives the one-way membrane 16 to open. At the same time, air is transmitted to the interior of the negative pressure isolation ward through the sealing plate 15. When the fan stops, the one-way membrane 16 blocks the interior of the sealing plate 15, preventing the air inside the negative pressure isolation ward from flowing back to the outside, thus improving the safety of the ventilation control component.

[0027] Please see Figure 7 A rotary valve 21 is movably sleeved on the outside of the control plate 20. A control sleeve 22 is fixed on the outside of the rotary valve 21 and sleeved on the outside of the first ventilation pipe 2. Holes are aligned inside the control plate 20 and the rotary valve 21. The control plate 20 is located inside the first ventilation pipe 2. The rotary valve 21 is installed on one side of the control plate 20. Holes are aligned inside the control plate 20 and the rotary valve 21. When the holes are aligned, gas can be delivered to the inside of the medical negative pressure isolation ward through the holes. When it is necessary to adjust the external air delivery volume, the control sleeve 22 is rotated to control the gap between the holes of the control plate 20 and the rotary valve 21, thereby adjusting the gas delivery volume.

[0028] Please see Figure 1 and Figure 2 The fan housing 9 is installed inside the negative pressure isolation ward, while the air inlet pipe 8 is located outside the ward. A fan is installed inside the fan housing 9. The inner side of the auxiliary transmission pipe 23 is installed between the rotary valve 21 and the fan. When the fan housing 9 is installed inside the negative pressure isolation ward and the fan is started, it creates negative pressure, driving air from outside the ward's partial wall 1 through the air inlet pipe 8. Simultaneously, the gas is transported into the negative pressure isolation ward and, through the exhaust device, is transported to a specific disinfection chamber. The air is then disinfected and discharged, ensuring that the air inside the negative pressure isolation ward remains under negative pressure to prevent gas leakage. The auxiliary transmission pipe 23 is installed on both sides of the fan housing 9. When the control plate 20 and rotary valve 21 inside the first ventilation pipe 2 are closed, the fan drives the air inside the negative pressure isolation ward to flow back through the auxiliary transmission pipe 23, ensuring continuous air circulation and improving comfort within the ward.

[0029] Working principle: The equipment is assembled by installing the first ventilation pipe 2 inside the partial wall 1 of the ward, with the fan jacket 9 installed at the front end of the first ventilation pipe 2 facing the inside of the medical negative pressure isolation ward. The second ventilation pipe 4 is installed at the rear end of the first ventilation pipe 2 through the side plate 3. During use, an activated carbon mounting frame 10 is installed inside the second ventilation pipe 4, with activated carbon 11 installed at equal intervals inside the activated carbon mounting frame 10. At the same time, an external disinfection pipe 5 is installed between the first ventilation pipe 2 and the second ventilation pipe 4. An installation sleeve 6 is installed at the upper end of the external disinfection pipe 5, and a pin is installed inside the installation sleeve 6 for fixation to ensure the stability of the external disinfection pipe 5 during installation and positioning. The elastic force applied to the threaded rod 17 is adjusted by rotating the spring 18. When the equipment is used, the fan installed inside the fan jacket 9 is started. When the fan is in use, it drives the air circulation and creates negative pressure. The pressure pushes the one-way membrane 16 to one side. At the same time, the external air is transported to the inside of the medical negative pressure isolation ward through the air inlet pipe 8, the second ventilation pipe 4, the ultraviolet disinfection pipe 5 and the first ventilation pipe 2. When the gas passes through the activated carbon 11, the activated carbon 11 adsorbs impurities in the air. At the same time, when the gas passes through the ultraviolet disinfection pipe 5, the ultraviolet disinfection lamp 14 installed inside the ultraviolet disinfection pipe 5 disinfects harmful substances with ultraviolet light. This can drive the external pressure to be transported to the inside of the medical negative pressure isolation ward, ensuring that the inside of the medical negative pressure isolation ward is kept in a negative pressure state and preventing gas leakage inside the medical negative pressure isolation ward. The pressure inside the medical negative pressure isolation ward continues to increase. When the excess gas is transported to a specific disinfection room, the gas discharged from the medical negative pressure isolation ward is disinfected in the disinfection room and then discharged. The airflow can be adjusted by rotating the control sleeve 22, which in turn drives the rotary valve 21 to rotate. This adjusts the opening between the control plate 20 and the rotary valve 21, thereby controlling the air intake. When the fan stops, the one-way diaphragm 16 returns to its initial state under the elastic action of the spring 18, sealing the inside of the pipe and further reducing gas leakage. Some of the gas that leaks into the first ventilation pipe 2 during airflow flows back into the ultraviolet disinfection pipe 5, where the ultraviolet disinfection lamp 14 disinfects the returned gas, thus improving the safety performance of the equipment during use.

[0030] 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 ventilation control component for a medical negative pressure isolation ward, comprising a first ventilation pipe (2), a second ventilation pipe (4) installed at the rear end of the first ventilation pipe (2) via a side plate (3), and an external disinfection pipe (5) installed on the inner side of the side plate (3), characterized in that: An air inlet pipe (8) is installed at the rear end of the second ventilation pipe (4) via an mounting plate (7). A fan jacket (9) is installed at the front end of the first ventilation pipe (2). An activated carbon mounting frame (10) is installed inside the second ventilation pipe (4). Activated carbon (11) is installed at equal intervals inside the activated carbon mounting frame (10). A sealing plate (15) is fixed in the middle of the first ventilation pipe (2). A one-way membrane (16) is installed at the front end of the sealing plate (15). A bolt (19) is threaded onto the end of the threaded rod (17). A control plate (20) is fixed at the front end of the first ventilation pipe (2). Auxiliary transmission pipes (23) are fixed on both sides of the fan jacket (9).

2. The ventilation control component for medical negative pressure isolation wards according to claim 1, characterized in that: The activated carbon (11) has holes inside, and the activated carbon mounting frame (10) is arranged at equal intervals inside the activated carbon mounting frame (10).

3. The ventilation control component for medical negative pressure isolation wards according to claim 1, characterized in that: The activated carbon mounting frame (10) is fixed with a gear plate (12) at its rear end. A (25) is installed on one side of the second ventilation pipe (4). The gear plate (12) is sandwiched between the second ventilation pipe (4) and the air inlet pipe (8). The gear installed at one end of the output shaft of the (25) meshes with the gear plate (12).

4. The ventilation control component for medical negative pressure isolation wards according to claim 1, characterized in that: The air intake pipe (8) is equipped with a scraper (24), which is attached to the rear end of the activated carbon mounting frame (10).

5. The ventilation control component for medical negative pressure isolation wards according to claim 1, characterized in that: The disinfection tube (5) is equipped with a disinfection lamp bracket (13), and ultraviolet disinfection lamps (14) are installed at equal intervals on the inner side of the disinfection lamp bracket (13). The ultraviolet disinfection lamps (14) are installed between the activated carbon mounting frame (10) and the sealing plate (15).

6. The ventilation control component for medical negative pressure isolation wards according to claim 1, characterized in that: An installation sleeve (6) is installed at the top of the external disinfection tube (5), and a positioning pin is installed inside the installation sleeve (6). The two sides of the positioning pin penetrate the interior of the first ventilation tube (2) and the second ventilation tube (4).

7. The ventilation control component for medical negative pressure isolation wards according to claim 1, characterized in that: The rear end of the one-way membrane (16) is fixed with a threaded rod (17), and a spring (18) is wound around the outside of the threaded rod (17). The threaded rod (17) is installed between the sealing plate (15) and the spring (18).

8. The ventilation control component for medical negative pressure isolation wards according to claim 1, characterized in that: A rotary valve (21) is movably sleeved on the outside of the control plate (20), and a control sleeve (22) sleeved on the outside of the first ventilation pipe (2) is fixed on the outside of the rotary valve (21). Holes are aligned inside the control plate (20) and the rotary valve (21).

9. The ventilation control component for medical negative pressure isolation wards according to claim 1, characterized in that: The fan jacket (9) is installed inside the medical negative pressure isolation ward, the air inlet pipe (8) is located outside the medical negative pressure isolation ward, the fan is installed inside the fan jacket (9), and the inner side of the auxiliary transmission pipe (23) is installed between the rotary valve (21) and the fan.

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