Air return structure of clean operating room

Abstract

The utility model relates to the technical field of clean operating rooms, in particular to a clean operating room air return structure which comprises an air return pipe and an air return box, the upper side of the air return box is fixedly connected with the air return pipe, a fan is assembled in the air return pipe, a panel is fixedly arranged on the front side of the air return box, an air return opening is formed in the panel, and a flow guide assembly is arranged in the air return opening. A conical-structure flow guide cover is arranged on the left side in the air return box, and a filter screen plate is installed on the right side in the flow guide cover. The fan is assembled in the air return pipe, active air return is achieved, flowing of air flow in an operating room can be guided, the air return efficiency is improved, the time needed by indoor air flowing is shortened, the risk that particles stay in a room is reduced, the rotatable movable blades are adopted, the air return angle of the air return opening is adjusted, and the air return angle of the air return opening is adjusted. Workers in the operating room can adjust the direction of return air according to needs, airflow distribution in the operating room can be controlled more evenly, and the possibility of particle retention is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of clean operating rooms, in particular to an air return structure of a clean operating room. Background Art

[0002] Clean operating room, also known as dust-free room, sterile operating department or clean room, is a special operating room that uses certain air purification measures to reduce the total amount of microbial particles and microparticles in the air in the operating room to an allowable level. Clean operating room adopts air purification technology to control the source of microbial contamination and provide a suitable temperature and humidity environment for surgical operations. The main purpose of clean operating room is to control particulate contamination and ensure the life safety of surgical patients. By establishing scientific personnel and material processes and strict zoning management, clean operating room can minimize the risk of contamination during surgery, reduce postoperative infection rate, and improve the success rate of surgery. At the same time, clean operating room also provides a safe and comfortable working environment for medical staff, which helps to improve surgical efficiency and medical quality.

[0003] As an important air flow structure in a clean operating room, the return air duct can effectively circulate and filter the air in the operating room, maintain the air cleanliness of the operating room, and can be used for antibacterial treatment in the operating room to reduce the risk of surgical infection. In the prior art, the return air duct is usually set inside the wall of the operating room close to the ground, and the position is relatively low. The return air outlet is usually fixed and cannot be adjusted in angle. The wind direction of the return air cannot be adjusted as needed, and the return air duct needs to be cleaned regularly. The fixed structure of the return air outlet is not convenient to disassemble, and the return air duct is a passive return air return, which has a low return air efficiency. The time required for the air flow in the room is relatively long, which easily leads to the retention of particles in the room, and has a negative impact on the air quality of the operating room. Utility Model Content

[0004] In view of the existing deficiencies, the utility model provides a clean operating room return air structure, which solves the problems raised in the above-mentioned background technology and improves the cleanliness and use effect of the operating room.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A return air structure for a clean operating room comprises a return air duct and a return air box, wherein the return air duct is fixedly connected to the upper side of the return air box, a fan is installed inside the return air duct, a panel is fixedly provided on the front side of the return air box, a return air port is opened inside the panel, a guide assembly is arranged inside the return air port, a guide hood with a conical structure is arranged on the left side inside the return air box, and a filter screen is installed on the right side inside the guide hood.

[0007] Furthermore, the guide assembly consists of a fixed frame and multiple groups of movable blades. The fixed frame is embedded in the return air outlet. Multiple groups of movable blades with a transverse structure are evenly arranged inside the fixed frame. The movable blades are movably connected to the fixed frame through pins.

[0008] Furthermore, a plurality of groups of magnetic blocks are embedded on the inner side surface of the fixed frame, a limit retaining ring is fixed inside the return air box, and the limit retaining ring is arranged on the left side of the air deflector, and the fixed frame is connected to the limit retaining ring by magnetic adsorption through the magnetic blocks.

[0009] Furthermore, the filter screen is arranged on the right side inside the air deflector, the right side of the air deflector is arranged as an open structure, and a retaining edge is arranged at the opening.

[0010] Furthermore, the filter screen is filled with activated carbon particles, and two groups of handles are provided on the left side of the filter screen.

[0011] Furthermore, an arc-shaped guide plate is provided on the right side inside the return air box, the left end of the guide plate is fixed to the bottom surface of the inner wall of the return air box and is flush with the right end of the guide cover, and the right end is fixed to the top wall inside the return air box.

[0012] Furthermore, a plurality of groups of arc-shaped guide grooves are evenly arranged on the surface of the guide plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model adopts rotatable movable blades to adjust the return air angle of the return air outlet, so that the operating room staff can adjust the return air direction as needed. This design helps to more evenly control the air flow distribution in the operating room and reduce the possibility of particle retention.

[0015] 2. The utility model can not only guide the air flow but also effectively filter out particles and pollutants in the air by arranging a conical structure of the guide cover and the filter screen in the return air box, thereby improving the air quality of the operating room.

[0016] 3. The utility model adopts a connection method of magnet adsorption and fixation, so that the guide assembly is easy to disassemble and reinstall, thereby facilitating the staff to clean and maintain the inside of the return air box, and the filter screen is directly placed inside the guide cover, which is convenient for later disassembly and replacement.

[0017] 4. The utility model realizes active air return by installing a fan inside the return air duct, which can guide the flow of air in the operating room. Compared with the traditional passive air return method, it improves the return air efficiency, shortens the time required for indoor air flow, and helps to reduce the risk of particles staying indoors. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a cross-sectional view of the utility model.

[0020] Figure 3 It is a schematic diagram of the disassembled structure of the utility model.

[0021] Figure 4 It is a structural schematic diagram of the flow guide component in the utility model.

[0022] In the figure: 1. return air duct; 2. return air box; 3. panel; 4. guide assembly; 41. fixed frame; 42. magnetic block; 43. movable blades; 5. return air outlet; 6. fan; 7. guide plate; 8. filter screen plate; 9. guide cover; 10. limit ring. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example:

[0025] like Figures 1 to 4 As shown, a return air structure of a clean operating room includes a return air duct 1 and a return air box 2, the return air box 2 is fixedly connected to the return air duct 1 on the upper side, a fan 6 is installed inside the return air duct 1, a panel 3 is fixedly provided on the front side of the return air box 2, a return air outlet 5 is opened inside the panel 3, a guide assembly 4 is arranged inside the return air outlet 5, a conical structured guide hood 9 is arranged on the left side inside the return air box 2, and a filter screen plate 8 is installed on the right side inside the guide hood 9. This design solves the problem that the original return air duct 1 is usually arranged inside the wall of the operating room close to the ground and has a low position, the return air outlet 5 is usually fixedly arranged, the angle cannot be adjusted, and the wind direction of the return air cannot be adjusted as needed, and the return air duct 1 needs to be cleaned regularly, the fixed structure of the return air outlet 5 is not convenient to disassemble, and the return air mode of the return air duct 1 is passive return air, the return air efficiency is low, and the time required for the indoor air flow to flow is long, which easily causes particles to be retained indoors, and has a negative impact on the air quality of the operating room.

[0026] The guide assembly 4 is composed of a fixed frame 41 and a plurality of groups of movable blades 43. The fixed frame 41 is embedded in the return air outlet 5. A plurality of groups of movable blades 43 with a transverse structure are evenly arranged inside the fixed frame 41. The movable blades 43 are movably connected to the fixed frame 41 through a pin shaft. The movable blades 43 with a transverse structure are evenly arranged inside the fixed frame 41, which helps to achieve a more uniform airflow distribution and reduce eddy currents and dead angles. The plurality of groups of movable blades 43 are movably connected to the fixed frame 41 through a pin shaft, so that the blades can adjust their angles as needed. By adjusting the angles of the movable blades 43, the direction of the return airflow can be controlled, which helps to control the airflow distribution in the operating room and reduce the possibility of particle retention.

[0027] A plurality of groups of magnetic blocks 42 are embedded on the inner side of the fixed frame 41, a limit retaining ring 10 is fixed inside the return air box 2, and the limit retaining ring 10 is arranged on the left side of the air deflector 9, and the fixed frame 41 is magnetically adsorbed and connected to the limit retaining ring 10 through the magnetic blocks 42. Using the magnetic blocks 42 as a connecting piece, the fixed frame 41 can be quickly and accurately aligned with the limit retaining ring 10 inside the return air box 2 and adsorbed and fixed, which greatly simplifies the installation process, and when cleaning or maintenance is required, the fixed frame 41 can also be quickly separated from the limit retaining ring 10, which is convenient for installation and disassembly, and improves the maintenance and cleaning efficiency.

[0028] The filter plate 8 is arranged on the right side inside the air deflector 9, which can filter the air and absorb the particles contained in the air. The right side of the air deflector 9 is arranged as an open structure, which helps the airflow to smoothly enter the air deflector 9, reduce the airflow resistance, and improve the return air efficiency. A guard edge is arranged at the opening, and the filter plate 8 can be limited by the guard edge to prevent the filter plate 8 from falling off from the inside of the air deflector 9.

[0029] The filter panel 8 is filled with activated carbon particles, which can effectively absorb odors, harmful gases and some microorganisms in the air, thereby further improving the air quality of the operating room. Two sets of handles are provided on the left side of the filter panel 8. The presence of the handles makes the installation, disassembly and cleaning of the filter panel 8 simple and easy. The staff can easily take out the filter panel 8 for cleaning and maintenance through the handles.

[0030] An arc-shaped deflector plate 7 is provided on the right side of the return air box 2, the left end of the deflector plate 7 is fixed to the bottom surface of the inner wall of the return air box 2 and is flush with the right end of the deflector cover 9, and the right end is fixed to the top wall of the return air box 2. The arc-shaped deflector plate 7 helps to smoothly guide the airflow entering the return air box 2 to the inlet of the return air duct 1, reduce the turbulence and eddy flow of the airflow, and thus improve the flow efficiency of the airflow.

[0031] The surface of the guide plate 7 is evenly provided with a plurality of groups of guide grooves with an arc structure, and the guide grooves with an arc structure form a plurality of additional air flow channels on the surface of the guide plate 7, so that the air flow can pass through the guide plate 7 more smoothly, thereby reducing the resistance and turbulence of the air flow and ensuring that the air flow is more evenly distributed on the surface of the guide plate 7, thus avoiding the concentration or deviation of the air flow and improving the efficiency of the entire return air system.

[0032] The return air duct 1 and the return air box 2 of the utility model can be made of electrolytic steel plates, which meets the construction requirements of operating rooms.

[0033] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A clean operating room air return structure, comprising an air return duct (1) and an air return box (2), characterized in that: The return air box (2) is fixedly connected to a return air duct (1) on its upper side, a fan (6) is installed inside the return air duct (1), a panel (3) is fixedly provided on the front side of the return air box (2), a return air port (5) is provided inside the panel (3), a flow guide assembly (4) is provided inside the return air port (5), a conical flow guide cover (9) is provided on the left side inside the return air box (2), and a filter screen plate (8) is installed on the right side inside the flow guide cover (9).

2. The clean operating room return air structure according to claim 1, characterized in that: The air guide assembly (4) is composed of a fixed frame (41) and a plurality of groups of movable blades (43); the fixed frame (41) is embedded in the return air port (5); a plurality of groups of movable blades (43) with a transverse structure are evenly arranged in the fixed frame (41); the movable blades (43) are movably connected to the fixed frame (41) via a pin shaft.

3. The clean operating room return air structure according to claim 2, characterized in that: A plurality of groups of magnetic blocks (42) are embedded on the inner side surface of the fixed frame (41); a limit retaining ring (10) is fixedly provided inside the return air box (2); and the limit retaining ring (10) is arranged on the left side of the air deflector (9); and the fixed frame (41) is magnetically adsorbed and connected to the limit retaining ring (10) via the magnetic blocks (42).

4. The clean operating room return air structure according to claim 1, characterized in that: The filter screen plate (8) is arranged on the right side inside the air guide cover (9); the right side of the air guide cover (9) is arranged as an open structure, and a retaining edge is arranged at the opening.

5. The clean operating room return air structure according to claim 4, characterized in that: The filter screen plate (8) is filled with activated carbon particles, and two groups of handles are provided on the left side surface of the filter screen plate (8).

6. The clean operating room return air structure according to claim 1, characterized in that: An arc-shaped guide plate (7) is provided on the right side of the return air box (2). The left end of the guide plate (7) is fixed to the bottom surface of the inner wall of the return air box (2) and is flush with the right end of the guide cover (9), and the right end is fixed to the top wall of the return air box (2).

7. The clean operating room air return structure according to claim 6, characterized in that: The surface of the guide plate (7) is evenly provided with a plurality of groups of guide grooves with arc structures.

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