Air purification structure for ventilation fan of medical clean room

Abstract

The utility model relates to the technical field of air purification, and discloses an air purification structure for a ventilation fan of a medical clean room, which comprises a shell, baffles are fixedly connected to the front end and the rear end of the shell, a filter layer is arranged at the rear end of the inner wall of the shell, and a sliding rod is fixedly connected to the inner wall of the middle end of the shell. A mounting frame is slidably connected to the outer wall of the sliding rod, a damageable filtering part is arranged on the inner wall of the mounting frame, mounting plates are arranged on the two sides of the mounting frame, mounting grooves are formed in the two ends of each mounting plate, and the inner walls of the mounting grooves are connected with the mounting frame through clamping assemblies. According to the utility model, the damageable filter pieces can be dynamically switched in real time, the winding roller is controlled by the motor to adjust the filter screen, the air is accurately filtered, the efficiency and the precision are improved, and the service life of equipment is prolonged. Meanwhile, quick-wear parts are convenient to replace, the mounting plate can be quickly taken out by opening the maintenance plate and shifting the clamping block, the maintenance cost is reduced, the shutdown influence is reduced, and the operation efficiency and usability of equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air purification technical field especially relates to a medical clean room ventilation fan air purification structure. BACKGROUND

[0002] In the modern medical field, the medical clean room plays a vital role. With the rapid development of medical technology, many medical places with high environmental requirements such as operating rooms, intensive care units, and pharmaceutical production workshops must rely on clean rooms to maintain a stable and clean air environment to minimize the negative impact of pollutants such as microorganisms and dust particles on the medical process and drug quality.

[0003] Currently, the air purification structure of the ventilation fan used in the medical clean room mostly adopts a relatively traditional fixed filtration mode. Usually, one or several fixed filter elements are installed singly in the ventilation duct, such as the commonly used primary, medium, and high-efficiency filters arranged in order. However, when the external air quality changes dramatically, such as during the arrival of smog weather, large surrounding construction dust, or seasonal pollen diffusion, the fixed filter element combination cannot flexibly respond to different levels of pollution. Since the filtration strategy cannot be adjusted in real time according to the actual pollution situation, the high-precision filter element remains in a high-load working state during lighter pollution periods, not only causing energy waste but also accelerating its wear and tear and shortening its service life. At the same time, the filter element replacement process in the existing purification structure is complicated. During installation, professional tools are often needed to accurately install the filter element in the specific frame, which takes a lot of time, and it is also difficult to disassemble, requiring careful handling to avoid damaging surrounding components. This makes the equipment maintenance cycle long, and once the filter element needs to be replaced urgently, the clean room has to be shut down for a long time, seriously affecting the normal medical business and increasing the hospital's operating costs. To address this technical problem, the present application proposes an air purification structure for a ventilation fan of a medical clean room. SUMMARY

[0004] The utility model aims at solving the shortcomings in the prior art and provides an air purification structure for a ventilation fan of a medical clean room, which can dynamically switch the vulnerable filter element in real time, adjust the filter screen through the motor control winding roller, accurately filter the air, improve the efficiency and precision, and prolong the service life of the equipment. At the same time, the vulnerable parts are convenient to replace, the maintenance plate is opened, the mounting plate is quickly taken out by turning the clamping block, the maintenance cost is reduced, the downtime is reduced, and the equipment operation efficiency and availability are improved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The utility model provides an air purification structure for medical clean room ventilation fan, including the shell, both ends of the shell are fixedly connected with the baffle, the inner wall rear end of the shell is provided with the filter layer, the inner wall middle end of the shell is fixedly connected with the slide rod, the outer wall of slide rod is connected with the mounting bracket, the inner wall of mounting bracket is provided with the vulnerable filter piece, the both sides of mounting bracket are provided with the mounting plate, the both ends of mounting bracket are all opened the mounting groove, the inner wall of mounting groove is connected with the mounting plate through the clamping component, for the installation of vulnerable filter piece, the rear side of mounting bracket is connected with the inner wall of shell through the winding assembly, the outer wall of slide rod is provided with telescopic spring, for the sliding of mounting bracket is controlled.

[0007] Further, the winding assembly includes a winding roller rotatably connected to an inner wall of one side of the shell, the winding roller is provided with a traction rope on an outer wall thereof, one end of the traction rope is connected to the rear side of the mounting bracket.

[0008] Further, the winding roller is provided with a motor mounted on a bottom side thereof through a fixing frame, and a driving end of the motor is fixedly connected to the bottom side of the winding roller.

[0009] Further, one end of the telescopic spring is connected to the outer wall of the mounting bracket, and the other end of the telescopic spring is connected to the inner wall of the shell.

[0010] Further, the clamping assembly includes a clamping block one fixedly connected to the inner wall of the mounting groove, the outer wall of the mounting plate is fixedly connected with a limiting rod, the outer wall of the limiting rod is slidably connected with a clamping block two, and the outer wall of the clamping block two is arranged on the outer wall of the clamping block one.

[0011] Further, the outer wall of the limiting rod is provided with a return spring, and one end of the limiting rod away from the mounting plate is fixedly connected with a circular limiting plate.

[0012] Further, the outer wall of the baffle is provided with a gas hole plate, and the rear side of the gas hole plate is fixedly connected with a gas collecting pipe.

[0013] Further, the middle ends of the two sides of the shell are provided with maintenance plates for replacement of the vulnerable filter piece.

[0014] The utility model has the advantages of:

[0015] 1、In the utility model, the equipment can dynamically switch the vulnerable filter piece in real time according to the pollution degree of external air quality, the winding and unwinding of the traction rope are controlled by the motor, the vulnerable filter piece with different filtering performance is flexibly adjusted to the rear end of the gas collecting pipe, the precision filtration of the entering air is realized, the filtering efficiency and filtering precision are improved, the air quality entering the clean room always meets the requirements, the service life of the whole equipment is prolonged, and damage caused by long-time high-load work of a single filter piece is avoided.

[0016] 2. In this utility model, by opening the maintenance plate and moving the second locking block to compress the reset spring, the second locking block is disengaged from the first locking block, and the mounting plate can be easily removed from the mounting slot of the mounting bracket. This enables the rapid replacement of easily damaged filter components, improves the operating efficiency and availability of the equipment, reduces maintenance costs, and also reduces the impact of maintenance downtime on the normal operation of the cleanroom. Attached Figure Description

[0017] Figure 1 This is a perspective view of an air purification structure for a ventilation fan in a medical cleanroom, as proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the outer shell structure of an air purification structure for a ventilation fan in a medical cleanroom, as proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the air collection pipe structure of an air purification structure for a ventilation fan in a medical cleanroom, as proposed in this utility model.

[0020] Figure 4 for Figure 3 Enlarged view of point A in the image;

[0021] Figure 5 This is a schematic diagram of the mounting frame structure for an air purification structure for a ventilation fan in a medical cleanroom, as proposed in this utility model.

[0022] Figure 6 for Figure 5 Enlarged view of point B in the image.

[0023] Legend:

[0024] 1. Outer shell; 2. Baffle; 3. Air vent plate; 4. Maintenance plate; 5. Filter layer; 6. Slide rod; 7. Mounting bracket; 8. Vulnerable filter element; 9. Air collection pipe; 10. Telescopic spring; 11. Traction rope; 12. Winding roller; 13. Motor; 14. Mounting plate; 15. Locking block one; 16. Return spring; 17. Limiting rod; 18. Locking block two. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 3 , Figure 5 and Figure 6The utility model provides a kind of air purification structure for medical clean room ventilation fan, including shell 1, the front and rear ends of shell 1 are fixedly connected with baffle 2, the rear end of the inner wall of shell 1 is provided with filter layer 5, the middle end inner wall of shell 1 is fixedly connected with slide rod 6, the outer wall of slide rod 6 is slidably connected with mounting bracket 7, the inner wall of mounting bracket 7 is provided with vulnerable filter element 8, the both sides of mounting bracket 7 are provided with mounting plate 14, mounting bracket 7 both ends are provided with mounting groove, the clamping block one 15 fixedly connected in the inner wall of mounting groove, the outer wall of mounting plate 14 is fixedly connected with limit rod 17, the outer wall of limit rod 17 is slidably connected with clamping block two 18, the outer wall of clamping block two 18 is arranged on the outer wall of clamping block one 15, the outer wall of limit rod 17 is provided with reset spring 16, the end of limit rod 17 away from mounting plate 14 is fixedly connected with circular limit plate, to be used to the installation of vulnerable filter element 8, winding roller 12 is rotatably connected in the inner wall of one side of shell 1, the outer wall of winding roller 12 is provided with traction rope 11, one end of traction rope 11 is connected with the back of mounting bracket 7, motor 13 is installed on the bottom side of winding roller 12 by fixing frame, the drive end of motor 13 is fixedly connected on the bottom side of winding roller 12, the outer wall of slide rod 6 is provided with telescopic spring 10, to be used for the sliding of mounting bracket 7 is controlled;

[0027] Specifically, by setting a fan as driving source on the inner wall of the gas collector 9, fresh air in the outside world is sucked into the inside of the shell 1 through the front baffle 2 and the air hole plate 3, first, some larger particles of dust and mosquitoes in the outside world are filtered through the air hole plate 3, the filtered air is filtered again through the vulnerable filter element 8 on the inner wall of the mounting bracket 7, and then enters the inside of the shell 1 to be finally filtered through the filter layer 5, and finally the air is discharged into the inside of the medical clean room through the rear baffle 2 and the air hole plate 3, and according to the pollution degree in the outside world, the motor 13 is started to drive the winding roller 12 to rotate to wind the traction rope 11, the mounting bracket 7 and the vulnerable filter element 8 are pulled to slide on the outer wall of the slide rod 6, the telescopic spring 10 on the outer wall of the slide rod 6 is compressed, and one of the vulnerable filter elements 8 is moved to the rear end of the gas collector 9, the air entering the gas collector 9 is filtered through different vulnerable filter elements 8, and the filter screen can be dynamically switched in real time according to the air quality. When another vulnerable filter element 8 needs to be switched, the winding roller 12 is controlled to release the traction rope 11 through the motor 13, and the reset of the telescopic spring 10 is matched to move another vulnerable filter element 8 to the rear side of the gas collector 9, and at the same time, the vulnerable filter element 8 not in operation is close to the inner wall of the maintenance plate 4, the maintenance plate 4 is opened, the reset spring 16 on the outer wall of the limit rod 17 is compressed by the clamping block two 18, the clamping block two 18 and the clamping block one 15 are separated, the mounting plate 14 is separated from the mounting groove on the outer wall of the mounting bracket 7, and the vulnerable filter element 8 is taken out from the inside of the mounting bracket 7, so that the vulnerable filter element 8 is quickly replaced.

[0028] Referring to Figure 1 , Figure 2 and Figure 4 , one end of the telescopic spring 10 is connected to the outer wall of the mounting frame 7, the other end of the telescopic spring 10 is connected to the inner wall of the shell 1, the outer wall of the baffle 2 is provided with the air hole plate 3, the rear side of the front air hole plate 3 is fixedly connected with the air collecting pipe 9, and the middle end of the two sides of the shell 1 is provided with the maintenance plate 4 for replacing the vulnerable filter element 8;

[0029] Specifically, the compression and reset of the telescopic spring 10 and the winding and unwinding of the traction rope 11 driven by the motor 13 and the winding roller 12 realize the control of the sliding of the mounting frame 7 on the outer wall of the sliding rod 6, so that the switching of different specifications of the vulnerable filter element 8 is realized. The air collecting pipe 9 can ensure that the air from the outside first contacts the vulnerable filter element 8 for filtering when entering the inside of the shell 1. The maintenance plate 4 is convenient for opening the shell 1 to maintain the vulnerable filter element 8 on the inner wall of the mounting frame 7, and sealing glue or a sealing ring can be applied between the maintenance plate 4 and the shell 1 during installation.

[0030] Working principle: the equipment uses the fan installed on the inner wall of the air collecting pipe 9 as a power source, uses the front baffle 2 and the air hole plate 3 to introduce fresh air from the outside into the inside of the shell 1. The air is first filtered by the air hole plate 3 to remove larger particles of dust and mosquitoes, then is filtered by the vulnerable filter element 8 in the mounting frame 7 for the second time, and finally is filtered by the filter layer 5 in the shell 1 to complete the final filtering, and then enters the medical clean room through the rear baffle 2 and the air hole plate 3. When it is necessary to dynamically switch the filter screen according to the air quality from the outside, the motor 13 is started under the stop state to drive the winding roller 12 to rotate, wind the traction rope 11, make the mounting frame 7 and the vulnerable filter element 8 slide along the sliding rod 6, compress the telescopic spring 10, and move the vulnerable filter element 8 to the rear end of the air collecting pipe 9 to realize the switching of different filter screens. If it is necessary to replace the vulnerable filter element 8, the winding roller 12 is controlled by the motor 13 to unwind the rope, and the telescopic spring 10 is reset to move another vulnerable filter element 8 to the rear side of the air collecting pipe 9. At this time, the vulnerable filter element 8 that is not working is close to the inner wall of the maintenance plate 4. The maintenance plate 4 is opened, the clamping block two 18 is moved, the reset spring 16 outside the limiting rod 17 is compressed, the clamping block two 18 is separated from the clamping block one 15, and then the mounting plate 14 is taken out of the mounting groove of the mounting frame 7 to complete the quick replacement of the vulnerable filter element 8.

[0031] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. An air purification structure for a ventilation fan in a medical cleanroom, characterized in that, The utility model provides an easy-to-damage filter element replacement device, which belongs to the technical field of filter element replacement devices.

2. The air purification structure for a clean room ventilation fan according to claim 1, characterized by: The winding assembly comprises a winding roller (12) rotatably connected to the inner wall of one side of the shell (1), and the outer wall of the winding roller (12) is provided with a traction rope (11), one end of the traction rope (11) is connected to the rear side of the mounting rack (7).

3. A clean room air purification structure for a ventilator for a medical clean room according to claim 2, characterized by: The bottom side of the winding roller (12) is provided with a motor (13) through a fixing frame, and the driving end of the motor (13) is fixedly connected to the bottom side of the winding roller (12).

4. The air purification structure for a clean room ventilation fan according to claim 1, characterized by: One end of the telescopic spring (10) is connected to the outer wall of the mounting rack (7), and the other end of the telescopic spring (10) is connected to the inner wall of the shell (1).

5. The air purification structure for a clean room ventilation fan of claim 1, wherein: The clamping assembly comprises a clamping block one (15) fixedly connected to the inner wall of the mounting groove, the outer wall of the mounting plate (14) is fixedly connected with a limiting rod (17), the outer wall of the limiting rod (17) is slidably connected with a clamping block two (18), and the outer wall of the clamping block two (18) is arranged on the outer wall of the clamping block one (15).

6. A clean room air handling fan air cleaning structure according to claim 5 wherein: The outer wall of the limiting rod (17) is provided with a reset spring (16), and one end of the limiting rod (17) away from the mounting plate (14) is fixedly connected with a circular limiting plate.

7. A clean room air handling fan air cleaning structure according to claim 1 wherein: The outer wall of the baffle (2) is provided with a gas hole plate (3), and the rear side of the gas hole plate (3) is fixedly connected with a gas collecting pipe (9).

8. A clean room air handling fan air cleaning structure according to claim 1 wherein: The middle end of the two sides of the shell (1) is provided with a maintenance plate (4) for replacing the easy-to-damage filter element (8). The middle end of the two sides of the shell (1) is provided with a maintenance plate (4) for replacing the easy-to-damage filter element (8).

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