Operating room disinfection and ventilation fresh air system and ventilation method

Abstract

The invention relates to the technical field of operating room ventilation equipment, in particular to an operating room disinfection and ventilation fresh air system and a ventilation method.The operating room disinfection and ventilation fresh air system comprises a shell, two exhaust pipes, an air inlet pipe, a magnet frame, a metal frame and a fresh air assembly; the fresh air assembly comprises two rotating units, a telescopic unit, two limiting units, a supporting frame and a filter plate, and after the filter plate is used, the rotating units are started to drive the telescopic unit to move, so that the supporting frame moves to the outside of the shell through the air inlet; the telescopic unit is started to drive the supporting frame to move downwards from the suspended ceiling; and the limiting unit is operated to release the limiting of the supporting frame to complete the quick disassembly of the filter plate, so that the suspended ceiling does not need to be manually disassembled, the filter plate can be directly moved into the operating room, the disassembly is quick, simple and convenient, the replacement efficiency of the filter plate is greatly improved, and the operating room is prevented from being occupied for too long time during replacement.

Description

Technical Field

[0001] The present invention relates to the technical field of ventilation equipment for operating rooms, and in particular to a disinfection ventilation fresh air system and a ventilation method for operating rooms. Background Art

[0002] Currently, in order to ensure the safety of surgery, a sterile environment is required in the operating room. The air in the operating room is usually disinfected, but the traditional method is to manually use disinfection equipment or install disinfection lamps, which is inefficient.

[0003] In the prior art, a ventilation system is pre-installed in the ceiling of the operating room. The outdoor air is drawn into the operating room, and the air is filtered for dust through the filter plate provided in the fresh air system. Then, atomized disinfectant is sprayed out for disinfection. At the same time, the original air in the operating room is drawn out to complete the disinfection and ventilation. Compared with disinfection lamps and manual disinfection, the efficiency is greatly improved.

[0004] However, in the aforementioned prior art, when air is taken in, the filter plate used to filter dust needs to be replaced after long-term use, otherwise the filtering performance will decrease or even fail to filter; and the fresh air system is generally installed in the ceiling, which makes it very inconvenient to replace the filter plate. The staff needs to dismantle the ceiling panel and then use tools to operate in the fresh air system to remove the filter plate. This is cumbersome and complicated, affecting the normal use of the operating room and is very inconvenient. Summary of the invention

[0005] The purpose of the present invention is to provide an operating room disinfection ventilation fresh air system and ventilation method, so as to solve the problem in the prior art that when the air is taken in, the filter plate used to filter dust needs to be replaced after long-term use, otherwise the filtering performance will decrease or even fail to filter; and the fresh air system is generally installed in the ceiling, which makes the replacement of the filter plate very inconvenient. The staff needs to dismantle the ceiling panel and then use tools to operate in the fresh air system to remove the filter plate, which is cumbersome and complicated, affects the normal use of the operating room, and is very inconvenient.

[0006] To achieve the above-mentioned object, the present invention provides an operating room disinfection ventilation fresh air system, comprising a shell, two exhaust pipes, an air intake pipe, a magnet frame, a metal frame and a fresh air component, wherein the two exhaust pipes pass through the shell, the air intake pipe is connected to the shell, the shell has an air inlet, the magnet frame is arranged on the inner top wall of the shell, and the metal frame and the magnet frame attract each other;

[0007] The fresh air component includes two rotating units, a telescopic unit, two limiting units, a support frame and a filter plate. The two rotating units are symmetrically arranged inside the outer shell, the telescopic unit is arranged between the two rotating units, the metal frame is arranged on the telescopic unit, the two limiting units are symmetrically arranged on the metal frame, the support frame is arranged inside the metal frame through the limiting units, and the filter plate is detachably connected to the support frame.

[0008] Among them, the fresh air component also includes a disinfection plate, a camera, an air detector and a controller. The disinfection plate is detachably connected to the support frame and is located on one side of the filter plate. The camera is arranged inside the magnet frame and located above the filter plate. The air detector is arranged at the air inlet, and the controller is arranged above the outer shell.

[0009] Wherein, the rotating unit includes a motor, a first gear and a second gear. The motor is arranged inside the shell, the output end of the motor is fixedly connected to the first gear, the first gear and the second gear are meshed with each other, and the second gear is fixedly connected to the telescopic unit.

[0010] Wherein, the telescopic unit includes a connecting plate and two telescopic cylinders, both ends of the connecting plate are fixedly connected to the corresponding second gears, the two telescopic cylinders are fixedly connected to the connecting plate, and the output ends of the two telescopic cylinders are fixedly connected to the metal frame.

[0011] Among them, the limiting unit includes a spring, a limiting block and a shift block, the metal frame has a groove and a slot, the groove is connected to the slot, the two ends of the spring are respectively movably connected to the limiting block and the inner wall of the groove, the shift block is slidably connected to the slot, one end of the shift block passes through the slot and is fixedly connected to the limiting block, the support frame has a limiting slot, and the limiting block and the limiting slot are adapted to each other.

[0012] Wherein, the fresh air component further includes two reinforcement units, and the two reinforcement units are symmetrically arranged on the magnet frame and the metal frame;

[0013] The reinforcement unit includes a fixed block, a limiting cylinder and a clamping block. The fixed block is fixedly connected to the metal frame and is located on one side of the metal frame. The limiting cylinder is arranged on one side of the fixed block. The output end of the limiting cylinder passes through the fixed block and is fixedly connected to the clamping block. The magnet frame has a clamping slot, and the clamping block and the clamping slot are adapted to each other.

[0014] Wherein, the fresh air component further includes two air inlet units, and the two air inlet units are symmetrically arranged inside the housing;

[0015] The air intake unit includes a plurality of adjusting cylinders, a movable frame and a plurality of air intake fans. The plurality of adjusting cylinders are fixedly connected to the outer shell and are sequentially distributed on the inner bottom wall of the outer shell. The output end of the adjusting cylinder is fixedly connected to the movable frame. The movable frame and the air inlet are adapted to each other. The plurality of air intake fans are sequentially arranged inside the movable frame.

[0016] Wherein, the fresh air component further includes a disinfection unit, and the disinfection unit is arranged inside the shell;

[0017] The disinfection unit includes a disinfection box, two atomization mechanisms, a liquid level sensor, a liquid filling pump and a liquid filling pipe. The disinfection box is arranged inside the outer shell, the two atomization mechanisms are symmetrically arranged on the disinfection box, the liquid level sensor is arranged inside the disinfection box, the liquid filling pump is arranged inside the disinfection box, and one end of the liquid filling pipe is connected to the liquid inlet end of the liquid filling pump.

[0018] Among them, the atomization mechanism includes a liquid suction pump, a liquid suction pipe and an atomizing nozzle. The liquid suction pump is arranged inside the disinfection box. One end of the liquid suction pipe is connected to the liquid outlet end of the liquid suction pump, and the other end of the liquid suction pipe is connected to the atomizing nozzle. The atomizing nozzle is located below the air inlet pipe.

[0019] The present invention also provides an operating room disinfection and ventilation method, which uses the above-mentioned operating room disinfection and ventilation fresh air system, and includes the following steps:

[0020] The air inside the operating room is exhausted through the exhaust pipe, while the air intake pipe draws the air from the external environment into the shell;

[0021] External air is filtered through the filter plate to remove dust, and then, after being sterilized in the housing, enters the operating room through the air inlet;

[0022] After the filter plate is used, the rotating unit is started to drive the telescopic unit to move, so that the support frame passes through the air inlet and moves to the outside of the housing;

[0023] The telescopic unit is started to drive the support frame to move downward from the ceiling;

[0024] The limiting unit is operated to remove the supporting frame from the metal frame, thereby completing the rapid disassembly of the filter plate.

[0025] The present invention provides an operating room disinfection ventilation fresh air system and ventilation method, wherein the support frame and the filter plate are fixed by magnetically cooperating with the magnet frame and the metal frame; then the air inside the operating room is discharged through the exhaust pipe, and at the same time, the air inlet pipe draws the air from the external environment into the shell; the external air passes through the filter plate to filter dust, and then enters the operating room through the air inlet after being disinfected in the shell; after the filter plate is used, the rotating unit is started to drive the telescopic unit to move, so that the support frame passes through the air inlet and moves to the outside of the shell; the telescopic unit is started to drive the support frame to move downward from the ceiling; the limiting unit is operated to remove the support frame from the metal frame to complete the rapid disassembly of the filter plate. Through the above-mentioned structural setting, the filter plate can be directly moved into the operating room without manually disassembling the ceiling, and the disassembly is quick and simple, thereby greatly improving the replacement efficiency of the filter plate and avoiding occupying the operating room for too long during replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 It is an overall bottom view of the present invention.

[0029] Figure 3 It is a cross-sectional view of the entire present invention.

[0030] Figure 4 The present invention Figure 3 AA line section view.

[0031] Figure 5 The present invention Figure 3 BB line cross-sectional view.

[0032] Figure 6 It is the internal structure diagram of the shell of the present invention.

[0033] Figure 7 The present invention Figure 3 Enlarged view of the local structure at location C.

[0034] Figure 8 It is a flow chart of the steps of the disinfection and ventilation method for an operating room of the present invention.

[0035] 1-housing, 2-exhaust pipe, 3-intake pipe, 4-magnet frame, 5-metal frame, 6-air inlet, 7-support frame, 8-filter plate, 9-disinfection plate, 10-camera, 11-air detector, 12-controller, 13-motor, 14-first gear, 15-second gear, 16-connecting plate, 17-telescopic cylinder, 18-spring, 19-limiting block, 20-shifting block, 21-groove, 22-slotting, 23-limiting groove, 24-fixing block, 25-limiting cylinder, 26-block, 27-slot, 28-adjusting cylinder, 29-moving frame, 30-intake fan, 31-disinfection box, 32-liquid level sensor, 33-liquid adding pump, 34-liquid adding pipe, 35-liquid extraction pump, 36-liquid extraction pipe, 37-atomizing nozzle. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0037] See also Figures 1 to 7 The present invention provides a new air system for disinfection and ventilation of an operating room, comprising a housing 1, two exhaust pipes 2, an air inlet pipe 3, a magnet frame 4, a metal frame 5 and a new air component, wherein the new air component comprises two rotating units, a telescopic unit, two limiting units, a support frame 7 and a filter plate 8, wherein the new air component further comprises a disinfection plate 9, a camera 10, an air detector 11 and a controller 12, wherein the rotating unit comprises a motor 13, a first gear 14 and a second gear 15, wherein the telescopic unit comprises a connecting plate 16 and two telescopic cylinders 17, wherein the limiting unit comprises a spring 18, a limiting block 19 and a dial Block 20, the metal frame 5 has a groove 21 and a slot 22, the fresh air component also includes two reinforcement units, the reinforcement unit includes a fixed block 24, a limit cylinder 25 and a block 26, the fresh air component also includes two air intake units, the air intake unit includes multiple adjustment cylinders 28, a movable frame 29 and multiple air intake fans 30, the fresh air component also includes a disinfection unit, the disinfection unit includes a disinfection box 31, two atomization mechanisms, a liquid level sensor 32, a liquid filling pump 33 and a liquid filling pipe 34, the atomization mechanism includes a liquid extraction pump 35, a liquid extraction pipe 36 and an atomization nozzle 37.

[0038] Among them, the two exhaust pipes 2 pass through the outer shell 1, the air intake pipe 3 is connected to the outer shell 1, the outer shell 1 has an air inlet 6, the magnet frame 4 is arranged on the inner top wall of the outer shell 1, the metal frame 5 and the magnet frame 4 attract each other, the two rotating units are symmetrically arranged inside the outer shell 1, the telescopic unit is arranged between the two rotating units, the metal frame 5 is arranged on the telescopic unit, the two limiting units are symmetrically arranged on the metal frame 5, the support frame 7 is arranged inside the metal frame 5 through the limiting unit, and the filter plate 8 is detachably connected to the support frame 7. The air inside the operating room is discharged through the exhaust pipe 2, and at the same time, the air from the external environment is drawn into the outer shell 1 by the air inlet pipe 3; the external air passes through the filter plate 8 to filter dust, and then enters the operating room through the air inlet 6 after being disinfected in the outer shell 1; after the filter plate 8 is used, the rotating unit is started to drive the telescopic unit to move, so that the support frame 7 passes through the air inlet 6 and moves to the outside of the outer shell 1; the telescopic unit is started to drive the support frame 7 to move downward from the ceiling; the limiting unit is operated to remove the support frame 7 from the metal frame 5, thereby completing the rapid disassembly of the filter plate 8.

[0039] Secondly, the disinfection plate 9 is detachably connected to the support frame 7 and is located on one side of the filter plate 8. The camera 10 is arranged inside the magnet frame 4 and above the filter plate 8. The air detector 11 is arranged at the air inlet 6, and the controller 12 is arranged above the housing 1. After the air passes through the filter plate 8 to filter dust, it passes through the disinfection plate 9 for initial disinfection. The camera 10 takes a picture of the top of the filter plate 8 to detect whether there is a large amount of dust accumulation. When the dust accumulation is serious, the filter plate 8 can be removed for disassembly. The air detector 11 can monitor the quality of the discharged air to judge the effect of disinfection and dust filtration. After receiving the information from the camera 10 and the air detector 11, the controller 12 transmits the control instructions of the host computer to the rotating unit and the telescopic unit to control the filter plate 8 to move out of the housing 1.

[0040] Meanwhile, the motor 13 is disposed inside the housing 1, the output end of the motor 13 is fixedly connected to the first gear 14, the first gear 14 and the second gear 15 are meshed with each other, and the second gear 15 is fixedly connected to the telescopic unit. When the motor 13 is started, the first gear 14 is driven to rotate, meshed with the second gear 15, and the telescopic unit is driven to rotate.

[0041] In addition, both ends of the connecting plate 16 are fixedly connected to the corresponding second gear 15, and the two telescopic cylinders 17 are fixedly connected to the connecting plate 16. The output ends of the two telescopic cylinders 17 are fixedly connected to the metal frame 5. The second gear 15 rotates, driving the connecting plate 16 to rotate, and through the connection of the telescopic cylinder 17, driving the metal frame 5 to separate from the magnet frame 4, pass through the air inlet 6, and be located inside the operating room, and then the support frame 7 is disassembled.

[0042] In addition, the metal frame 5 has a groove 21 and a slot 22, the groove 21 is connected to the slot 22, the two ends of the spring 18 are respectively movably connected to the limit block 19 and the inner wall of the groove 21, the shift block 20 is slidably connected to the slot 22, one end of the shift block 20 passes through the slot 22 and is fixedly connected to the limit block 19, and the support frame 7 has a limit slot 23, the limit block 19 and the limit slot 23 are mutually adapted. When the metal frame 5 is located in the operating room, the telescopic cylinder 17 is started to drive the metal frame 5 to move down, closer to the ground, and convenient for the staff to disassemble; at this time, the shift block 20 is shifted to slide in the slot 22, driving the limit block 19 to disengage from the limit slot 23, and then the support frame 7 is removed from the inside of the metal frame 5, and then a new support frame 7 is placed, and after the spring 18 is released, the limit block 19 enters the limit slot 23 to complete the installation.

[0043] Then, the two reinforcement units are symmetrically arranged on the magnet frame 4 and the metal frame 5; the fixed block 24 is fixedly connected to the metal frame 5 and is located on one side of the metal frame 5, the limit cylinder 25 is arranged on one side of the fixed block 24, the output end of the limit cylinder 25 passes through the fixed block 24 and is fixedly connected to the clamping block 26, the magnet frame 4 has a clamping slot 27, and the clamping block 26 and the clamping slot 27 are adapted to each other. The fixed block 24 supports the limit cylinder 25, and the limit cylinder 25 is started to drive the clamping block 26 to move and enter the clamping slot 27, and then after the metal frame 5 and the magnet frame 4 are attracted, it plays a reinforcement role to prevent falling due to insufficient magnetic force.

[0044] Again, the two air inlet units are symmetrically arranged inside the housing 1; the multiple regulating cylinders 28 are fixedly connected to the housing 1 and are sequentially distributed on the inner bottom wall of the housing 1; the output end of the regulating cylinder 28 is fixedly connected to the moving frame 29, the moving frame 29 and the air inlet 6 are mutually adapted, and the multiple air inlet fans 30 are sequentially arranged inside the moving frame 29. When the regulating cylinder 28 is started, the moving frame 29 is driven away from the air inlet 6, thereby facilitating the passage of the metal frame 5; at the same time, when air is introduced, the air inlet fan 30 is started to increase the air inlet speed.

[0045] Furthermore, the disinfection unit is arranged inside the housing 1; the disinfection box 31 is arranged inside the housing 1, the two atomizing mechanisms are symmetrically arranged on the disinfection box 31, the liquid level sensor 32 is arranged inside the disinfection box 31, the liquid adding pump 33 is arranged inside the disinfection box 31, and one end of the liquid adding pipe 34 is connected to the liquid inlet end of the liquid adding pump 33. Disinfectant is stored in the disinfection box 31, and the air is disinfected for the second time after being atomized by the atomizing mechanism. The liquid level sensor 32 can detect the remaining capacity of the disinfectant. When the remaining capacity drops to a preset value, the controller 12 controls the liquid adding pump 33 to start, and at the same time, the liquid adding pipe 34 is connected to the external disinfectant to complete the liquid addition; the liquid adding pipe 34 can be pre-buried in the wall of the operating room during installation and a valve can be set at the end for adding at any time, or the liquid adding pipe 34 can be fixedly attached to the wall of the operating room so that the staff can add at any time.

[0046] Finally, the liquid pump 35 is arranged inside the disinfection box 31, one end of the liquid pumping pipe 36 is connected to the liquid outlet end of the liquid pump 35, and the other end of the liquid pumping pipe 36 is connected to the atomizing nozzle 37, and the atomizing nozzle 37 is located below the air inlet pipe 3. The liquid pump 35 can extract the disinfectant in the disinfection box 31, pass through the liquid pumping pipe 36 to the atomizing nozzle 37, and then spray it out in atomization to perform secondary disinfection on the air passing through the disinfection plate 9.

[0047] When using an operating room disinfection ventilation system of the present embodiment, the air inside the operating room is discharged through the exhaust pipe 2, and the air intake pipe 3 draws the air from the external environment into the housing 1; after the air passes through the filter plate 8 to filter dust, it passes through the disinfection plate 9 for primary disinfection; the liquid extraction pump 35 extracts the disinfectant in the disinfection box 31, reaches the atomizing nozzle 37 through the liquid extraction pipe 36, and then sprays it out in atomization, and performs secondary disinfection on the air passing through the disinfection plate 9, and finally the air enters the operating room through the air inlet 6; the camera 10 takes a picture above the filter plate 8 to detect whether there is a large amount of dust accumulation. When the dust accumulation is serious, the filter plate 8 can be removed for disassembly, and the air detector 11 can monitor the quality of the discharged air to determine the effect of disinfection and dust filtration. Finally, after the controller 12 receives the information from the camera 10 and the air detector 11, it determines that replacement is needed and transmits the control instruction of the host computer to the rotating unit and the telescopic unit; at this time, the motor 13 is started to drive the The first gear 14 rotates and meshes with the second gear 15, and the second gear 15 rotates, driving the connecting plate 16 to rotate, and through the connection of the telescopic cylinder 17, the metal frame 5 is driven to be separated from the magnet frame 4, through the air inlet 6, and located inside the operating room; then the telescopic cylinder 17 is started, driving the metal frame 5 to move down, closer to the ground, and convenient for the staff to disassemble; at this time, the shifting block 20 is moved to slide in the slot 22, driving the limit block 19 to be separated from the limit slot 23, and then the support frame 7 is removed, and then a new support frame 7 is placed, and the spring 18 is reset after release, and the limit block 19 enters the limit slot 23 to complete the installation, and the filter plate 8 is quickly disassembled, and finally the metal frame 5 returns to the shell 1 to cooperate with the magnet frame 4, and disinfection and ventilation are performed again; through the above-mentioned structural setting, there is no need to manually disassemble the ceiling, and the filter plate 8 can be directly moved into the operating room, and the disassembly is fast and simple, thereby greatly improving the replacement efficiency of the filter plate 8, and avoiding occupying the operating room for too long during replacement.

[0048] See also Figure 8 The present invention also provides a method for disinfecting and ventilating an operating room, comprising the following steps:

[0049] S1: The air inside the operating room is exhausted through the exhaust pipe 2, and the air inlet pipe 3 draws the air from the external environment into the housing 1;

[0050] S2: External air passes through the filter plate 8 to filter dust, and then enters the operating room through the air inlet 6 after being sterilized in the housing 1;

[0051] S3: After the filter plate 8 is used, the rotating unit is started to drive the telescopic unit to move, so that the support frame 7 passes through the air inlet 6 and moves to the outside of the housing 1;

[0052] S4: the telescopic unit is started, driving the support frame 7 to move downward from the ceiling;

[0053] S5: operate the limiting unit to remove the support frame 7 from the metal frame 5, thereby completing the rapid disassembly of the filter plate 8.

[0054] Among them, the air inside the operating room is discharged through the exhaust pipe 2, and at the same time, the air from the external environment is drawn into the outer shell 1 by the air inlet pipe 3; the external air passes through the filter plate 8 to filter dust, and then enters the operating room through the air inlet 6 after being disinfected in the outer shell 1; after the filter plate 8 is used, the rotating unit is started to drive the telescopic unit to move, so that the support frame 7 passes through the air inlet 6 and moves to the outside of the outer shell 1; the telescopic unit is started to drive the support frame 7 to move downward from the ceiling; the limiting unit is operated to remove the support frame 7 from the metal frame 5, thereby completing the rapid disassembly of the filter plate 8.

[0055] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. An operating room disinfection ventilation system, comprising a shell, two exhaust pipes, an air intake pipe, a magnet frame and a metal frame, wherein the two exhaust pipes pass through the shell, the air intake pipe is connected to the shell, the shell has an air inlet, the magnet frame is arranged on the inner top wall of the shell, the metal frame and the magnet frame attract each other, and is characterized in that: It also includes fresh air components; The fresh air component includes two rotating units, a telescopic unit, two limiting units, a support frame and a filter plate. The two rotating units are symmetrically arranged inside the outer shell, the telescopic unit is arranged between the two rotating units, the metal frame is arranged on the telescopic unit, the two limiting units are symmetrically arranged on the metal frame, the support frame is arranged inside the metal frame through the limiting units, and the filter plate is detachably connected to the support frame.

2. The operating room disinfection ventilation system according to claim 1, characterized in that: The fresh air component also includes a disinfection plate, a camera, an air detector and a controller. The disinfection plate is detachably connected to the support frame and is located on one side of the filter plate. The camera is arranged inside the magnet frame and above the filter plate. The air detector is arranged at the air inlet, and the controller is arranged above the outer shell.

3. The operating room disinfection ventilation system according to claim 2, characterized in that: The rotating unit includes a motor, a first gear and a second gear. The motor is arranged inside the housing. The output end of the motor is fixedly connected to the first gear. The first gear and the second gear are meshed with each other. The second gear is fixedly connected to the telescopic unit.

4. The operating room disinfection ventilation system according to claim 3, characterized in that: The telescopic unit includes a connecting plate and two telescopic cylinders, both ends of the connecting plate are fixedly connected to the corresponding second gears, the two telescopic cylinders are fixedly connected to the connecting plate, and the output ends of the two telescopic cylinders are fixedly connected to the metal frame.

5. The operating room disinfection ventilation system according to claim 4, characterized in that: The limiting unit includes a spring, a limiting block and a shifting block. The metal frame has a groove and a slot. The groove is connected to the slot. The two ends of the spring are respectively movably connected to the limiting block and the inner wall of the groove. The shifting block is slidably connected to the slot. One end of the shifting block passes through the slot and is fixedly connected to the limiting block. The support frame has a limiting slot. The limiting block and the limiting slot are adapted to each other.

6. The operating room disinfection ventilation system according to claim 5, characterized in that: The fresh air component further includes two reinforcement units, which are symmetrically arranged on the magnet frame and the metal frame; The reinforcement unit includes a fixed block, a limiting cylinder and a clamping block. The fixed block is fixedly connected to the metal frame and is located on one side of the metal frame. The limiting cylinder is arranged on one side of the fixed block. The output end of the limiting cylinder passes through the fixed block and is fixedly connected to the clamping block. The magnet frame has a clamping slot, and the clamping block and the clamping slot are adapted to each other.

7. The operating room disinfection ventilation system according to claim 6, characterized in that: The fresh air assembly further includes two air inlet units, and the two air inlet units are symmetrically arranged inside the housing; The air intake unit includes a plurality of adjusting cylinders, a movable frame and a plurality of air intake fans. The plurality of adjusting cylinders are fixedly connected to the outer shell and are sequentially distributed on the inner bottom wall of the outer shell. The output end of the adjusting cylinder is fixedly connected to the movable frame. The movable frame and the air inlet are adapted to each other. The plurality of air intake fans are sequentially arranged inside the movable frame.

8. The operating room disinfection ventilation system according to claim 7, characterized in that: The fresh air assembly further includes a disinfection unit, which is disposed inside the housing; The disinfection unit includes a disinfection box, two atomization mechanisms, a liquid level sensor, a liquid filling pump and a liquid filling pipe. The disinfection box is arranged inside the outer shell, the two atomization mechanisms are symmetrically arranged on the disinfection box, the liquid level sensor is arranged inside the disinfection box, the liquid filling pump is arranged inside the disinfection box, and one end of the liquid filling pipe is connected to the liquid inlet end of the liquid filling pump.

9. The operating room disinfection ventilation system according to claim 8, characterized in that: The atomization mechanism includes a liquid suction pump, a liquid suction pipe and an atomizing nozzle. The liquid suction pump is arranged inside the disinfection box. One end of the liquid suction pipe is connected to the liquid outlet end of the liquid suction pump, and the other end of the liquid suction pipe is connected to the atomizing nozzle. The atomizing nozzle is located below the air inlet pipe.

10. A method for disinfection and ventilation of an operating room, using the disinfection and ventilation fresh air system of an operating room as claimed in claim 9, characterized in that: The steps include: The air inside the operating room is exhausted through the exhaust pipe, while the air intake pipe draws the air from the external environment into the shell; External air is filtered through the filter plate to remove dust, and then, after being sterilized in the housing, enters the operating room through the air inlet; After the filter plate is used, the rotating unit is started to drive the telescopic unit to move, so that the support frame passes through the air inlet and moves to the outside of the housing; The telescopic unit is started to drive the support frame to move downward from the ceiling; The limiting unit is operated to remove the supporting frame from the metal frame, thereby completing the rapid disassembly of the filter plate.

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