Integrated operating room air purification equipment

Abstract

The invention relates to the technical field of purification equipment, in particular to integrated operating room air purification equipment which comprises a shell, a pre-filtering layer and a sterilization filtering layer are arranged in the shell, the pre-filtering layer comprises a dust removal net, storage boxes are connected to the two opposite outer walls of the shell correspondingly, and reels are rotationally connected into the storage boxes; one end of the dust removal net is wound on the reel in one storage box, and the other end of the dust removal net is fixedly connected with the reel in the other storage box; the two pressed assemblies are movably arranged on the inner wall of the shell, after dust adheres to the dust removal net, when the air pressure in the dust removal cavity reaches the preset air pressure, the pressed assemblies are switched from the initial state to the pressed state, the two reels are driven to rotate in the same direction, and the clean part of the dust removal net is conveyed into the shell. Large-particle dust in the air is pre-filtered through the front dust removal net, the dust load of the follow-up sterilization filter layer is remarkably reduced, and dust removal and sterilization stage treatment is achieved, so that the blocking speed of the sterilization filter layer is slowed down, and the service life of the sterilization filter layer is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of purification equipment, and in particular to an integrated operating room air purification equipment. Background Art

[0002] The operating room is the core area of hospital infection control, and its air cleanliness directly affects the postoperative infection risk of surgical patients and the safety of medical staff. During the operation, pollutants such as microorganisms, dust, and volatile organic compounds suspended in the air may cause serious consequences such as incision infection and cross-infection. Therefore, continuously removing pathogens and particulate matter in the air through air purification equipment and maintaining a positive pressure environment and aseptic state in the operating room are key requirements for ensuring surgical safety.

[0003] Currently, the existing fresh air purification unit for a clean operating room includes a box body. Four reinforcing mounting plates are fixedly installed at both ends of the box body. Four mounting bolts are movably inserted into the four reinforcing mounting plates. A fastening spring is movably sleeved outside the four mounting bolts. Two side mounting plates are fixedly installed at both ends of the box body. An air inlet is communicated with one end of the box body, and an electric valve is movably installed inside the air inlet; through the provided sealing cover plate, when maintenance is required inside the box body, the bolts and the sealing cover plate can be removed at this time, and the medical grade 95 air filter inside the box body can be replaced and cleaned and maintained through the notch of the box body.

[0004] The medical grade 95 air filter needs to undertake both the functions of sterilization and dust removal at the same time, resulting in its surface being quickly blocked due to adhesion of a large amount of dust. This not only forces medical staff to frequently disassemble and replace the filter, greatly increasing the operation and maintenance costs, but also introducing external pollution risks due to repeated opening of the box body, damaging the aseptic environment of the operating room. In addition, the coupling of the dust removal and sterilization functions will accelerate the performance attenuation of the filter, further reducing the air purification efficiency. Summary of the Invention

[0005] In order to solve the above problems, this application provides an integrated operating room air purification equipment.

[0006] The integrated operating room air purification equipment provided by this application adopts the following technical solutions: An integrated operating room air purification equipment, comprising: A housing, provided with an air inlet and a plurality of air outlets, and an air inlet fan is provided at the air inlet; A plurality of air outlet pipes, each of which is communicated with one of the plurality of air outlets, and an ultraviolet sterilization lamp is provided in each air outlet pipe; A pre-filter layer and a disinfection and filtration layer, which are sequentially arranged in the housing from the air inlet to the air outlet direction, and the pre-filter layer includes: A dust removal net, wherein storage boxes are respectively connected to two opposite outer walls of the housing. A reel is rotatably connected inside the storage box. One end of the dust removal net passes through one of the storage boxes and is wound around the reel inside the storage box, and the other end is fixedly connected to the reel inside the other storage box. The dust removal net covers the middle of the housing, separating the housing into a dust removal chamber near the air inlet and a clean chamber near the air outlet; Two pressure - receiving components are movably arranged on the inner wall of the housing corresponding to the dust removal chamber, corresponding to the two reels one by one. The pressure - receiving component has an initial state and a pressure - receiving state; When the air pressure in the dust removal chamber reaches a preset air pressure after the dust removal net adheres to dust, the pressure - receiving component is pressured and switches from the initial state to the pressure - receiving state, driving the two reels to rotate in the same direction, transmitting the clean part of the dust removal net to the inside of the housing, so that the air pressure in the dust removal chamber returns to the initial air pressure, and the pressure - receiving component switches from the pressure - receiving state to the initial state.

[0007] Optionally, the pressure - receiving component includes: A movable block. A receiving groove is provided on the inner wall of the housing. The movable block is slidably installed at the notch of the receiving groove along the wall thickness direction of the housing. An internal thread groove is provided in the middle of the movable block; A screw rod is rotatably installed at the bottom of the receiving groove and is threadedly connected to the movable block. A transmission connection is provided between the screw rod and the corresponding reel. During the process of the pressure - receiving component switching from the initial state to the pressure - receiving state, the movable block moves from the notch of the receiving groove to the bottom of the groove, and the rotation of the screw rod drives the rotation of the reel; A reset member drives the movable block to return to the initial position away from the bottom wall of the receiving groove when the air pressure in the dust removal chamber returns to the initial air pressure.

[0008] Optionally, the pressure - receiving component further includes: A pressing plate is rotatably installed on the inner wall of the housing. A turbine is fixed on the pressing plate. When the pressure - receiving component is in the initial state, the pressing plate presses against the dust removal net. When the pressure - receiving component is in the pressure - receiving state, the pressing plate moves away from the dust removal net; A worm is fixed to one end of the screw rod away from the movable block and is meshed with the turbine; A constant - force coil spring is sleeved on the reel. One end of the constant - force coil spring is fixedly connected to the reel, and the other end is fixedly connected to the storage box. The constant - force coil spring is in a stretched state.

[0009] Optionally, the reset member is a spring, installed in the receiving groove and fixedly connected to the movable block and the inner wall of the housing.

[0010] Optionally, a damper is connected between the pressing plate and the inner wall of the housing, and the damper is used to buffer the rotation of the pressing plate during the process of the pressed component switching from the pressed state to the initial state.

[0011] Optionally, a spiral baffle is arranged in each air outlet pipe around the periphery of the ultraviolet sterilization lamp to form a spiral air outlet channel.

[0012] Optionally, the disinfection and filtration layer is detachably installed in the housing.

[0013] Optionally, the disinfection and filtration layer includes an activated carbon filter plate.

[0014] Optionally, the disinfection and filtration layer includes multiple layers of fiberglass filter paper.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. The pre-filter dust screen pre-filters large particulate dust in the air, significantly reducing the dust load on the subsequent disinfection and filtration layer, enabling it to focus on the sterilization and disinfection function, realizing dust removal-sterilization hierarchical treatment, thereby delaying the clogging speed of the disinfection and filtration layer and extending the service life of the disinfection and filtration layer; 2. Based on the air pressure-triggered automatic replacement structure of the dust screen, when the air pressure in the dust removal chamber rises to a preset threshold due to the clogging of the filter screen, the pressed component drives the reel to rotate synchronously, quickly replacing the clean section of the filter screen with the contaminated section, dynamically maintaining the pressure difference stability between the dust removal chamber and the clean chamber, and avoiding the risk of purification interruption caused by shutdown maintenance during the disassembly and replacement process and the intrusion of external pollutants; 3. The spiral in the air outlet pipe extends the ultraviolet irradiation path, significantly improving the air sterilization efficiency. At the same time, the modular disinfection and filtration layer can flexibly adapt the filter material combination according to different pollution types. On the premise of ensuring the air cleanliness of the operating room (such as meeting the standards of suspended particles and microorganism concentration), it realizes continuous purification operation with low energy consumption and high reliability, effectively reducing the risk of postoperative infection and extending the equipment maintenance cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of an integrated operating room air purification device in an embodiment of the present application; Figure 2 is Figure 1 a partial cross-sectional perspective view of the integrated operating room air purification device in Figure 3 is Figure 2 an enlarged schematic view of the circled part in

[0017] Description of the reference numerals: 1. Housing; 11. Dust removal chamber; 12. Clean chamber; 13. Accommodating tank; 2. Inlet air fan; 3. Outlet air duct; 31. Spiral baffle; 4. Ultraviolet sterilization lamp; 5. Prefilter layer; 51. Dust removal net; 52. Storage box; 53. Reel; 54. Compression component; 541. Movable block; 542. Screw rod; 543. Reset component; 544. Pressing plate; 545. Turbine; 546. Worm; 6. Disinfection and filtration layer. Detailed implementation manners

[0018] Next, in combination with the attached Figures 1-3 , the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0019] The embodiments of the present application disclose an integrated operating room air purification device. Refer to Figure 1 and Figure 2 , the integrated operating room air purification device includes a housing 1, a plurality of outlet air ducts 3, a prefilter layer 5, and a disinfection and filtration layer 6.

[0020] The housing 1 is provided with an air inlet and a plurality of air outlets. An inlet air fan 2 is provided at the air inlet. When the inlet air fan 2 is turned on, air can be conveyed into the housing 1 through the air inlet to form a positive pressure inside the housing 1. A plurality of outlet air ducts 3 are in one-to-one communication with the plurality of air outlets. An ultraviolet sterilization lamp 4 is provided in each outlet air duct 3, and the ultraviolet sterilization lamp 4 can disinfect and sterilize the air.

[0021] A spiral baffle 31 arranged around the periphery of the ultraviolet sterilization lamp 4 is provided in each outlet air duct 3 to form a spiral air outlet channel, which can extend the duration of the air irradiated by the ultraviolet sterilization lamp 4 and ensure the disinfection and sterilization effect. The longer the length of the outlet air duct 3, the greater the thread density of the spiral baffle 31, and the smaller the wind speed of the inlet air fan 2, the longer the duration of the air irradiated by the ultraviolet sterilization lamp 4. The specific parameters can be set according to the required irradiation duration to meet the high standards of the operating room. The cross-sectional area of the housing 1, the cross-sectional area and the number of the outlet air ducts 3 can be set according to actual needs.

[0022] The prefilter layer 5 and the disinfection and filtration layer 6 are sequentially arranged in the housing 1 from the air inlet to the air outlet direction. The disinfection and filtration layer 6 is detachably installed in the housing 1. The disinfection and filtration layer 6 includes one or more of an activated carbon filter plate, multiple layers of glass fiber filter paper, and an antiviral coating filter layer. Different types of filter layers can be flexibly replaced according to actual sterilization requirements.

[0023] Refer to Figure 2, the pre-filter layer 5 includes a dust removal net 51 and two pressure-bearing components 54. On the outer walls of the opposite sides of the housing 1, storage boxes 52 are fixedly connected respectively. Inside both storage boxes 52, winding shafts 53 are horizontally installed through bearings. The dust removal net 51 is a continuous wound filter material. One end of it passes through the side wall of the housing 1 and inserts into the left storage box 52 and is wound and fixed on the winding shaft 53 in this storage box 52, and the other end passes through the side wall of the housing 1 and inserts into the right storage box 52 and is fixedly connected with the winding shaft 53. The dust removal net 51 horizontally penetrates through the middle of the housing 1, dividing the interior of the housing 1 into a dust removal chamber 11 near the air inlet and a clean chamber 12 near the air outlet. Air enters from the air inlet and flows into the clean chamber 12 after the dust removal effect of the dust removal net 51 in the dust removal chamber 11.

[0024] The two pressure-bearing components 54 are symmetrically and movably arranged on the inner wall of the housing 1 corresponding to the dust removal chamber 11, and are in one-to-one correspondence and linkage with the winding shafts 53 on the left and right sides. The pressure-bearing component 54 has an initial state and a pressure-bearing state: when the inlet fan 2 operates and continuously conveys air into the dust removal chamber 11, the dust adhered to the dust removal net 51 affects the air flow, and the air pressure in the dust removal chamber 11 continuously increases. When the air pressure in the dust removal chamber 11 rises to a preset threshold value, the pressure-bearing component 54 is switched from the initial state to the pressure-bearing state under the action of the air pressure thrust, driving the two winding shafts 53 to rotate synchronously, and then conveying the clean section of the dust removal net 51 into the housing 1 to replace the contaminated filter section, so that the air pressure in the dust removal chamber 11 returns to the initial value. At this time, the pressure-bearing component 54 automatically resets to the initial state.

[0025] Referring to Figure 3 , each pressure-bearing component 54 specifically includes a movable block 541, a screw rod 542, a resetting member 543, a pressing plate 544 and a transmission component. A receiving groove body 13 is fixedly connected to the inner wall of the housing 1. The movable block 541 is slidably installed at the notch of the receiving groove body 13 along the wall thickness direction of the housing 1. On the side of the movable block 541 facing the bottom wall of the receiving groove body 13, an internal thread groove is provided. The screw rod 542 is rotatably installed at the bottom of the receiving groove body 13 around its own axis. The screw rod 542 penetrates through the bottom wall of the receiving groove body 13 and is threadedly connected with the internal thread groove of the movable block 541. The resetting member 543 is a spring, sleeved around the screw rod 542 and located inside the receiving groove body 13. One end is fixedly connected with the movable block 541, and the other end is fixedly connected with the bottom wall of the receiving groove body 13, and is used to pull the movable block 541 to reset after the air pressure in the dust removal chamber 11 decreases.

[0026] Furthermore, a rotating shaft is fixed to the end of the pressing plate 544. The rotating shaft is rotatably installed on the inner wall of the housing 1. The rotating shaft is parallel to the reel 53. A turbine 545 is coaxially fixed to the rotating shaft. The screw rod 542 passes through the bottom wall of the receiving groove body 13. One end of the screw rod 542 outside the receiving groove body 13 is fixedly connected to a worm 546. The worm 546 and the turbine 545 are engaged to form a worm and turbine transmission pair. A pre-tensioned constant force coil spring is sleeved on the reel 53. One end of the constant force coil spring is fixedly connected to the rotating shaft, and the other end is fixedly connected to the inner wall of the storage box 52. When the pressure-receiving assembly 54 is in the initial state, the constant force coil spring is in a stretched energy storage state. The pressing plate 544 self-locks through the turbine 545 - worm 546 to press against the surface of the dust removal net 51 to enhance the sealing performance; when the pressure-receiving assembly 54 is switched to the pressure-receiving state, the movable block 541 pushes the screw rod 542 to rotate, the worm 546 drives the turbine 545 to drive the pressing plate 544 to disengage from the dust removal net 51, and at the same time the rotating shaft releases the pre-tension of the constant force coil spring to realize the automatic winding and replacement of the dust removal net 51.

[0027] In addition, a hydraulic damper is connected between the pressing plate 544 and the inner wall of the housing 1. When the pressure-receiving assembly 54 returns from the pressure-receiving state to the initial state, the damper buffers the rotational movement of the pressing plate 544 to reserve time for the replacement of the dust removal net 51. When the air pressure in the dust removal chamber 11 reaches the preset threshold, the movable block 541 moves towards the inside of the receiving groove body 13 under the air pressure, driving the screw rod 542 and the worm 546 to rotate, and then driving the turbine 545 to rotate and the pressing plate 544 to rotate, releasing the pressing on the dust removal net 51. The rotating shaft in the storage box 52 rotates to drive the dust removal net 51 to move to realize winding and replacement. During the replacement process of the dust removal net 51, the ventilation degree of the dust removal net 51 gradually recovers, the air pressure in the dust removal chamber 11 gradually decreases to the initial state, and the pressing plate 544 slowly rotates under the action of the damper, preventing the pressing plate 544 from immediately rotating back to press the dust removal net 51 before the dust removal net 51 is completely replaced.

[0028] The constant force coil spring can provide a nearly constant output torque during the rotation of the reel 53, effectively eliminating the problem of the pre-tension attenuation of the traditional helical spring due to gradual reset, ensuring that the displacement amount of each filter screen replacement is stable and consistent; at the same time, the constant force coil spring can maintain a uniform tension release without an additional pre-tensioning mechanism, which not only simplifies the mechanical transmission complexity, but also extends the effective replacement cycle of the filter screen through a continuous and stable driving force, significantly improving the reliability of the equipment under long-term high-frequency use and reducing the maintenance frequency and failure rate caused by the degradation of the spring performance.

[0029] This technical solution pre-filters large particulate dust in the air through the pre-filter dust screen 51, significantly reducing the dust load on the subsequent disinfection and filtration layer 6, enabling it to focus on the sterilization and disinfection function, achieving dust removal - sterilization hierarchical treatment, thereby delaying the clogging speed of the filter medium and extending the replacement cycle to 3 - 5 times that of the original solution. At the same time, based on the automatic replacement structure of the dust screen 51 triggered by air pressure, when the air pressure in the dust removal chamber 11 rises to the preset threshold due to filter clogging, the pressure - receiving component 54 drives the reel 53 to rotate synchronously, quickly replacing the contaminated section of the filter screen with the clean section, dynamically maintaining the pressure difference stability between the dust removal chamber 11 and the clean chamber 12, avoiding the risk of purification interruption caused by downtime maintenance during disassembly and replacement and the intrusion of external pollutants. While ensuring the continuous and efficient operation of the operating room air purification system, it significantly reduces the consumable cost and maintenance frequency. Combined with the design of extending the ultraviolet irradiation path in the outlet duct 3 in a spiral shape, it significantly improves the air sterilization efficiency. At the same time, the modular disinfection and filtration layer 6 can flexibly adapt the filter material combination according to different pollution types, achieving low - energy - consumption and high - reliability continuous purification operation while ensuring the air cleanliness in the operating room (such as meeting the standards of suspended particles and microorganism concentration), effectively reducing the risk of postoperative infection and extending the equipment maintenance cycle.

[0030] The pure mechanical structure of this application is not sensitive to temperature and humidity fluctuations and can operate stably in high - humidity operating rooms or low - temperature storage environments, avoiding the risk of electronic components being damaged by moisture or low - temperature failure. At the same time, the mechanical linkage is not affected by electromagnetic interference (such as the radiation of electrosurgical knives and imaging equipment), ensuring that the filter screen replacement action is always accurately triggered in a complex medical electromagnetic environment. It can quickly respond to sudden pollution. When a large amount of particulate impurities are suddenly released, the sudden increase in air pressure can instantaneously trigger the continuous replacement of multiple - stage dust screens 51 to form an "emergency purification mode" to prevent pollutants from spreading to the clean chamber 12.

[0031] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0032] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0033] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An integrated operating room air purification device, characterized in that, Comprising: A housing (1) provided with an air inlet and a plurality of air outlets, and an intake fan (2) is provided at the air inlet; A plurality of air outlet pipes (3) are respectively connected to the plurality of air outlets one by one, and an ultraviolet sterilization lamp (4) is provided in each of the air outlet pipes (3); A pre-filter layer (5) and a disinfection and filtration layer (6) are sequentially arranged in the housing (1) in the direction from the air inlet to the air outlet. The pre-filter layer (5) includes: A dust removal net (51), storage boxes (52) are respectively connected to two opposite outer walls of the housing (1), a reel (53) is rotatably connected in the storage box (52), one end of the dust removal net (51) passes through one of the storage boxes (52) and is wound around the reel (53) in the storage box (52), and the other end is fixedly connected to the reel (53) in the other storage box (52). The dust removal net (51) covers the middle of the housing (1) and divides the housing (1) into a dust removal chamber (11) near the air inlet and a clean chamber (12) near the air outlet; Two pressure-receiving components (54) are movably arranged on the inner wall of the housing (1) corresponding to the dust removal chamber (11) and correspond to the two reels (53) one by one. The pressure-receiving component (54) has an initial state and a pressure-receiving state; When the air pressure in the dust removal chamber (11) reaches a preset air pressure after the dust removal net (51) adheres to dust, the pressure-receiving component (54) is pressed and switches from the initial state to the pressure-receiving state, driving the two reels (53) to rotate in the same direction, transmitting the clean part of the dust removal net (51) to the inside of the housing (1), so that the air pressure in the dust removal chamber (11) returns to the initial air pressure, and the pressure-receiving component (54) switches from the pressure-receiving state to the initial state.

2. The integrated operating room air purification equipment according to claim 1, characterized in that The pressure-receiving component (54) includes: A movable block (541), a receiving groove body (13) is provided on the inner wall of the housing (1), the movable block (541) is slidably installed at the notch of the receiving groove body (13) along the wall thickness direction of the housing (1), and an internal thread groove is provided in the middle of the movable block (541); A screw rod (542) is rotatably installed at the bottom of the receiving groove body (13) around its axis and is in threaded connection with the movable block (541). A transmission connection is provided between the screw rod (542) and the corresponding reel (53). During the process of the pressure-receiving component (54) switching from the initial state to the pressure-receiving state, the movable block (541) moves from the notch of the receiving groove body (13) to the bottom of the groove, and the rotation of the screw rod (542) drives the reel (53) to rotate; A resetting member (543) drives the movable block (541) to return to the initial position away from the bottom wall of the receiving groove body (13) when the air pressure in the dust removal chamber (11) returns to the initial air pressure.

3. The integrated operating room air purification equipment according to claim 2, characterized in that, The pressure-receiving component (54) further includes: The pressing plate (544) is rotatably mounted on the inner wall of the housing (1). A turbine (545) is fixed on the pressing plate (544). When the pressure-receiving assembly (54) is in the initial state, the pressing plate (544) presses against the dust removal net (51). When the pressure-receiving assembly (54) is in the pressurized state, the pressing plate (544) moves away from the dust removal net (51). The worm (546) is fixed to the end of the screw rod (542) away from the movable block (541) and meshes with the turbine (545). A constant force coil spring is sleeved on the reel (53). One end of the constant force coil spring is fixedly connected to the reel (53), and the other end is fixedly connected to the storage box (52). The constant force coil spring is in a stretched state.

4. The integrated operating room air purification equipment according to claim 3, characterized in that, The reset member (543) is a spring and is installed in the receiving groove body (13) and fixedly connected to the movable block (541) and the inner wall of the housing (1).

5. The integrated operating room air purification device according to claim 3, characterized in that, A damper is connected between the pressing plate (544) and the inner wall of the housing (1). The damper is used to buffer the rotation of the pressing plate (544) during the process of the pressure-receiving assembly (54) switching from the pressurized state to the initial state.

6. The integrated operating room air purification equipment according to claim 1, characterized in that, A spiral baffle (31) arranged around the ultraviolet sterilization lamp (4) is provided in each air outlet pipe (3), forming a spiral air outlet channel.

7. The integrated operating room air purification equipment according to claim 1, characterized in that The disinfection and filtration layer (6) is detachably installed in the housing (1).

8. The integrated operating room air purification equipment according to claim 7, characterized in that, The disinfection and filtration layer (6) includes an activated carbon filter plate.

9. The integrated operating room air purification equipment according to claim 7, characterized in that, The disinfection and filtration layer (6) includes multiple layers of fiberglass filter paper.

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