Return air inlet with filtering function for operating room

Abstract

According to the technical scheme, the operating room air return opening with the filtering function comprises an air return pipeline, the bottom of the air return pipeline is fixedly connected with a connecting pipeline, the top of the right side of the connecting pipeline is fixedly connected with a curved pipeline, and the top of the left side of the curved pipeline is fixedly connected with the outer wall of the right side of the air return pipeline; the air return port comprises an air return pipeline, a filtering device is installed in the air return pipeline, the filtering device is used for air entering the air return pipeline, the bottom of the air return pipeline is connected with a cleaning device, and the cleaning device is used for cleaning dust in the air return pipeline. Dust on the fixing block can be blown to the second opening through the fan and discharged through the second opening, so that the dust is prevented from being accumulated on the air return pipeline, the dust cannot pollute follow-up entering air, and the air returning to an operating room is clean enough and does not carry germs.

Description

Technical Field

[0001] The utility model relates to the technical field of return air vents for operating rooms, in particular to a return air vent for operating rooms with a filtering function. Background Art

[0002] The existing application number CN202121249837.1 publicly releases a return air vent for an operating room with a filtering function, which relates to the field of ventilation technology for an operating room, including: a bellows, which is arranged above the house and is used to convey airflow, and the interior of the bellows is provided with an air duct for return air and a sewage discharge duct for sewage discharge, and a sewage collecting hopper, which is fixedly arranged on the inner wall of the bellows and is used to collect sewage impurities, and the sewage collecting hopper is located in the sewage discharge duct; the airflow is blown into the sewage collecting hopper under the action of the air guide plate, and the personnel connect the sewage discharge pipe to the sewage discharge nozzle, and the third disinfection lamp irradiates and disinfects the outside of the filter, the first disinfection lamp irradiates and disinfects the inside of the filter and the input end of the axial flow fan, and the second disinfection lamp disinfects the output end of the axial flow fan. When inhaling air, the odor generated during disinfection is taken away and discharged through the sewage discharge pipe connected to the sewage discharge nozzle, so that the interior of the bellows can be disinfected and sterilized, and at the same time, the air supply system pipeline of the air conditioner will not be affected.

[0003] The prior art has the following deficiencies: although the above-mentioned return air vent with a filtering function for an operating room can achieve disinfection and sterilization of the interior of the bellows without affecting the air supply system pipes of the air conditioner, the air guide plate in the above-mentioned return air vent with a filtering function for an operating room will block most of the air entering the bellows, so that the air can only pass from above the air guide plate, which will cause the dust in the air to accumulate on the dirt collecting hopper at the bottom of the air guide plate, and the diameter of the sewage discharge nozzle at the bottom of the sewage collecting hopper is small, so the dust is difficult to be discharged from the sewage discharge nozzle, and will adhere to the sewage collecting hopper, causing pollution to the subsequent incoming air, and it is also inconvenient for the user to quickly clean the air duct.

[0004] Therefore, it is necessary to invent an operating room return air vent with a filtering function. Utility Model Content

[0005] To this end, the utility model provides an operating room return air vent with a filtering function to solve the problems in the background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an operating room return air outlet with filtering function, comprising a return air duct, a connecting duct is fixedly connected to the bottom of the return air duct, a curved duct is fixedly connected to the top right side of the connecting duct, and the top left side of the curved duct is fixedly connected to the right outer wall of the return air duct;

[0007] A filtering device is installed in the return air duct, and the filtering device is used for the air entering the return air duct. A cleaning device is connected to the bottom of the return air duct, and the cleaning device is used to clean the dust in the return air duct.

[0008] Preferably, the outer wall of the fixed frame is fixedly connected to the inner wall of the return air duct, a fixing block 1 is fixedly installed on the inner wall of the return air duct close to the filter 1, and three air intake fans are fixedly installed on the inner wall of the fixing block 1.

[0009] Preferably, a servo motor is fixedly mounted on the right outer wall of the return air duct, the outer wall of the servo motor output end is rotatably connected to the right inner wall of the return air duct, and a rotating blade is fixedly mounted on the servo motor output end.

[0010] Preferably, the cleaning device comprises: two fixing blocks 2, two fans, opening 1 and opening 2;

[0011] The two fixing blocks 2 are respectively fixedly connected to the bottom of the inner wall of the return air duct, the opening 1 is arranged at the bottom of the inner wall of the return air duct, and the opening 2 is arranged on the right side of the return air duct.

[0012] Preferably, the opening one is located between the two fixed blocks two, the opening two is located between the two fixed blocks two, the two fans are fixedly connected to the outer wall of the return air duct, and the left outer wall of the return air duct is fixedly installed with a filter screen two.

[0013] The beneficial effects of the utility model are as follows: a fixed block and a fan are provided, and the fixed block is made of ASA material with a smooth surface, which is an anti-static material and has a good effect of preventing dust accumulation. In this way, when dust in the air accumulates on the fixed block and cannot be discharged through the first opening, the dust on the fixed block can be blown to the second opening through the fan and discharged through the second opening, thereby preventing dust from accumulating on the return air duct, so that the dust will not pollute the air that enters later, and the air returned to the operating room is clean enough and will not carry germs.

[0014] Rotating blades and servo motors are provided at the same time. After the air enters the return air duct, it will be blocked by the rotating blades when passing through the rotating blades. At this time, it can only flow out from the air reserved above the rotating blades. In this way, the dust in the air will be blocked under the rotating blades due to gravity, so that most of the large particles of dust in the air can be filtered. At the same time, the rotating blades can be driven to rotate by driving the servo motor, thereby changing the rotation angle of the rotating blades, so that the size of the reserved space on the rotating blades can be controlled. The user can adjust the size of the reserved space on the rotating blades according to needs, thereby filtering dust in the air to varying degrees. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1The front view provided by the utility model;

[0016] Figure 2 A rear view provided for the utility model;

[0017] Figure 3 A side view provided for the utility model;

[0018] Figure 4 A cross-sectional view provided for the utility model;

[0019] Figure 5 This is the front view of the exploded diagram provided by the utility model;

[0020] Figure 6 This is the back view of the exploded diagram provided by the utility model;

[0021] Figure 7 This is a front view of the return air duct provided by the utility model;

[0022] Figure 8 This is a front view of the fixing block provided by the utility model.

[0023] In the figure: return air duct 1, connecting duct 2, curved duct 3, filter screen 1 4, fixing block 1 5, suction fan 6, rotating blade 7, servo motor 8, medium efficiency filter 9, opening 1 10, opening 2 11, fixing frame 12, germicidal lamp 13, fixing block 2 14, fan 15, filter screen 2 16. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0025] Refer to the attached Figure 1-8 , the utility model provides a return air vent for an operating room with a filtering function. In order to achieve the above purpose, the utility model provides the following technical solutions: it includes a return air duct 1, a connecting duct 2 is fixedly connected to the bottom of the return air duct 1, a curved duct 3 is fixedly connected to the top of the right side of the connecting duct 2, and the top of the left side of the curved duct 3 is fixedly connected to the right outer wall of the return air duct 1. The return air duct 1 is made of aluminum alloy, and the openings at 4 where the filter screen is installed are used as the air inlet of the return air duct 1, and the other side is its air outlet. The connecting duct 2 is used to discharge the exhaust gas and part of the dust in the return air duct 1, and the curved duct 3 is used to receive the dust discharged from the return air duct 1, and can discharge the dust into the connecting duct 2, and discharge it to the outside together with the exhaust gas and dust in the connecting duct 2. The connecting duct 2 here should be connected to a specific machine to process the exhaust gas and dust discharged from the return air duct 1, prevent the exhaust gas and dust from polluting the environment, and also prevent the exhaust gas and dust from accumulating and wandering in the connecting duct 2;

[0026] A filtering device is installed in the return air duct 1, and the filtering device includes: a filter mesh 4, a medium-efficiency filter 9, and five sterilization lamps 13. The filtering device is used for the air entering the return air duct 1. A cleaning device is connected to the bottom of the return air duct 1 and includes: two fixed blocks 14, two fans 15, an opening 10, and an opening 2 11. The cleaning device is used to clean the dust in the return air duct 1.

[0027] The filter 4 is fixedly connected to the inner wall of the return air duct 1, and the inner wall of the return air duct 1 on the side away from the inner wall of the return air duct 1 is fixedly connected to the outer wall of the medium efficiency filter 9. The outer walls of the two sides of the five germicidal lamps 13 are fixedly installed with fixed frames 12, and the outer wall of the fixed frame 12 is fixedly connected to the inner wall of the return air duct 1. The inner wall of the return air duct 1 close to the filter 4 is fixedly installed with a fixed block 5, and the inner wall of the fixed block 5 is fixedly installed with three suction fans 6. When the air enters the return air duct 1, it needs to pass through the filter 4 first. The filter 4 is made of activated carbon material, which can absorb large and small particles and harmful molecules in the air, so that it can be initially filtered through the filter 4. The air is then driven by the suction fan 6 after preliminary filtration, because when the return air duct 1 is in use, the suction fan 6 will be turned on, and the suction fan 6 will blow air in the direction of the exhaust port of the return air duct 1, and generate suction in the direction of the air inlet of the return air duct 1, thereby driving the air to flow into the return air duct 1. Similarly, the germicidal lamp 13 will also be started. The germicidal lamp 13 here is the same as the germicidal lamp 13 used in the return air port of an operating room with a filtering function, which is publicly released in the application number CN202121249837.1, and can kill harmful bacteria in the air, thereby eliminating most of the bacteria in the air;

[0028] A servo motor 8 is fixedly installed on the right outer wall of the return air duct 1, and the outer wall of the output end of the servo motor 8 is rotatably connected to the inner wall of the right side of the return air duct 1. A rotating blade 7 is fixedly installed on the output end of the servo motor 8. After the air passes through these steps, the harmful bacteria and impurities in the air are basically eliminated, and only some medium and small dust have not been filtered. At this time, it is necessary to drive the servo motor 8 to drive the rotating blade 7 to rotate, so that the rotating blade 7 as a whole gradually rotates, thereby blocking most of the space in the return air duct 1, so that the air can only be discharged from above the rotating blade 7. In this way, the heavier and larger dust in the air can be isolated on the rotating blade 7 through the rotating blade 7, and only a small part of the fine dust is contained in the air passing through the rotating blade 7, and these air finally needs to pass through the medium efficiency filter 9, and the medium efficiency filter 9 also adopts the application number CN202121249837.1, which publicly releases a medium efficiency filter 9 used in the return air inlet of an operating room with a filtering function, which can filter fine dust particles in the air.

[0029] Two fixed blocks 14 are respectively fixedly connected to the bottom of the inner wall of the return air duct 1, an opening 10 is opened at the bottom of the inner wall of the return air duct 1, an opening 11 is opened on the right side of the return air duct 1, the opening 10 is located between the two fixed blocks 14, and the opening 11 is located between the two fixed blocks 14. Two fans 15 are fixedly connected to the outer wall of the return air duct 1, and a filter screen 16 is fixedly installed on the left outer wall of the return air duct 1. After the rotating blades 7 isolate the dust, the dust will gradually accumulate on the fixed block 14 and the bottom of the inner wall of the return air duct 1, and in the middle of the two fixed blocks 14 at the bottom of the inner wall of the return air duct 1, a filter screen 16 is installed. A fixed block with a slope is arranged, a through hole is opened in the middle of the fixed block, and a through hole also begins to be formed at the bottom of the inner wall of the return air duct 1 at the bottom of the through hole, through which the connecting duct 2 is connected, and the slope direction of the fixed block is from the return air duct 1 to the curved duct 3, from high to low. At the same time, the material used for the fixed block is the same as that of the fixed block 2 14, both of which are ASA anti-static material. The high gloss of this material can reach 90% to 95%, and dust is very difficult to adhere to it. In this way, by driving two fans 15 to blow air to the curved duct 3, the dust can be blown into the curved duct 3.

[0030] The use process of the utility model is as follows: when the air enters the return air duct 1, it needs to pass through the filter screen 4 first. The filter screen 4 absorbs large and small particles and harmful molecules in the air, and drives the suction fan 6 to generate suction in the direction of the air inlet of the return air duct 1, thereby driving the air to flow into the return air duct 1. Similarly, the sterilization lamp 13 is started to kill harmful bacteria in the air, and the servo motor 8 is driven to drive the rotating blade 7 to rotate, so that the rotating blade 7 gradually rotates as a whole, thereby blocking most of the space in the return air duct 1, so that the air can only be discharged from above the rotating blade 7. In this way, the heavier and larger dust in the air can be isolated on the rotating blade 7 by the rotating blade 7. After the rotating blade 7 isolates the dust, the dust will gradually accumulate on the top of the fixed block 2 14 and the fixed block with a slope, and drive the two fans 15 to blow air to the curved duct 3, so that the dust can be blown into the curved duct 3, and the air that has passed through the rotating blade 7 will pass through the medium efficiency filter 9 to filter the fine dust particles in the air, and then the air will be discharged.

[0031] The above are only preferred embodiments of the present invention. Any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the above technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. An operating room return air vent with a filtering function, comprising a return air duct (1), the bottom of the return air duct (1) being fixedly connected to a connecting duct (2), the right top of the connecting duct (2) being fixedly connected to a curved duct (3), the left top of the curved duct (3) being fixedly connected to the right outer wall of the return air duct (1); Features: A filtering device is installed in the return air duct (1), and the filtering device is used for filtering the air entering the return air duct (1). A cleaning device is connected to the bottom of the return air duct (1), and the cleaning device is used for cleaning dust in the return air duct (1).

2. The operating room return air vent with filtering function according to claim 1, characterized in that: The filtering device comprises: a filter screen (4), a medium-efficiency filter (9), and five germicidal lamps (13); The filter screen 1 (4) is fixedly connected to the inner wall of the return air duct (1), the inner wall of the return air duct (1) on the side away from the inner wall of the return air duct (1) is fixedly connected to the outer wall of the medium efficiency filter (9), and the outer walls on both sides of the five germicidal lamps (13) are fixedly installed with a fixing frame (12).

3. The operating room return air vent with filtering function according to claim 2, characterized in that: The outer wall of the fixed frame (12) is fixedly connected to the inner wall of the return air duct (1); a fixing block (5) is fixedly installed on the inner wall of the return air duct (1) close to the filter screen (4); and three suction fans (6) are fixedly installed on the inner wall of the fixing block (5).

4. The operating room return air vent with filtering function according to claim 1, characterized in that: A servo motor (8) is fixedly mounted on the right outer wall of the return air duct (1); the outer wall of the output end of the servo motor (8) is rotatably connected to the right inner wall of the return air duct (1); and a rotating blade (7) is fixedly mounted on the output end of the servo motor (8).

5. The operating room return air vent with filtering function according to claim 1, characterized in that: The cleaning device comprises: two second fixing blocks (14), two fans (15), an opening one (10), and an opening two (11); The two fixing blocks (14) are respectively fixedly connected to the bottom of the inner wall of the return air duct (1), the opening (10) is opened at the bottom of the inner wall of the return air duct (1), and the opening (11) is opened on the right side of the return air duct (1).

6. The operating room return air vent with filtering function according to claim 5, characterized in that: The opening one (10) is located between the two fixing blocks two (14), the opening two (11) is located between the two fixing blocks two (14), the two fans (15) are fixedly connected to the outer wall of the return air duct (1), and the left outer wall of the return air duct (1) is fixedly installed with a filter screen two (16).

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