Ventilation structure for clean room

Abstract

The utility model discloses a ventilation structure for a clean room, relates to the technical field of ventilation structures, and aims to solve the problems that in the prior art, particulate matters such as adsorbed dust are accumulated on the surface of a filtering piece due to long-time work, so that the filtering and adsorbing effects of the filtering piece are influenced, and time and labor are wasted when the filtering piece is cleaned manually. According to the scheme, the ventilation device comprises a ventilation frame, symmetrically-distributed partition plates are welded and fixed between the top and the bottom in the ventilation frame, and fans fixedly installed in the ventilation frame are arranged on the sides, away from each other, of the two partition plates. Dust particles in air entering the clean room are filtered through the filter frame and the filter screen, a rotating screw drives a square rod in threaded connection to move in the ventilation frame at intervals, at the moment, a first servo motor drives a rolling brush to rotate, and the dust particles in the air entering the clean room are filtered out. The rotating rolling brush is used for brushing off dust on the filter screen in the moving filter frame.

Description

Technical Field

[0001] This utility model relates to the field of ventilation structure technology, and in particular to a ventilation structure for clean rooms. Background Technology

[0002] A cleanroom is a specially designed room that removes pollutants such as airborne particles, harmful air, and bacteria from a defined space and controls indoor temperature, cleanliness, indoor pressure, airflow speed and distribution, noise and vibration, lighting, and static electricity within a specific range. The ventilation system of a cleanroom has separate air intake and exhaust systems, and both the intake and exhaust mechanisms need to filter the air to prevent dust from the outside air from entering the cleanroom.

[0003] According to the search, the patent (application number: 202020442659.3) discloses "a clean room ventilation device". This device can eliminate odorous gases in the air, thereby achieving the effect of initial air purification. Through the set electrostatic generator, it removes and adsorbs microorganisms and fine dust pollutants in the air, so that its air purification effect can achieve the ideal effect and make the air drawn in by the ventilation device cleaner.

[0004] However, during the use of the above-mentioned device, the dust and other particles adsorbed by the device will accumulate on the surface of the filter element due to long-term operation, thereby affecting the filtration and adsorption effect of the filter element. Manual cleaning of the filter element is time-consuming and laborious. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a ventilation structure for clean rooms, which overcomes the shortcomings of the prior art and effectively solves the problem that in the prior art, long-term operation will cause the adsorbed dust and other particles to accumulate on the surface of the filter element, thereby affecting the filtration and adsorption function of the filter element, and manual cleaning of the filter element is time-consuming and laborious.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A ventilation structure for a cleanroom includes a ventilation frame. Symmetrically distributed partitions are welded and fixed between the top and bottom of the ventilation frame. Fans are installed and fixed within the ventilation frame on the sides of the partitions that are far apart from each other. A fixed frame is provided on one side of the fan, and a cleaning mechanism is provided on the other side of the fan. The cleaning mechanism includes a fixed frame, roller brushes rotatably connected to the inner walls of both ends of the fixed frame, and a first servo motor installed on the outer wall of one end of the fixed frame. A filter mechanism is provided between the cleaning mechanism and the fan. The filter mechanism includes a fixed plate, a connecting plate welded and fixed to the bottom of the fixed plate, a square rod welded and fixed to the top of the fixed plate, filter frames respectively provided on both sides of the fixed plate, and a screw screwed to one end of the square rod.

[0008] Two fans blow air towards the cleaning mechanism, thus transporting air out of the cleanroom. Meanwhile, the channel structure between the two partitions draws outside air into the cleanroom due to the negative pressure. A filter frame and filter screen filter the dust particles entering the cleanroom. At regular intervals, a second servo motor drives a screw to rotate, which in turn moves a screwed square rod within the ventilation frame, causing the entire filtration mechanism to move laterally. When an infrared sensor detects a nearby moving object, a first servo motor drives a roller brush to rotate. The rotating roller brush brushes off the dust from the filter screen within the moving filter frame. Combined with the airflow generated by the fans, the brushed-off dust particles are blown outwards, completing the cleaning of the filter screen within the filter frame.

[0009] Preferably, the outer walls of the fixed frame are welded and fixed to the inner walls of the ventilation frame and the outer walls of the partition, and a filter screen is welded and fixed to the inner walls of the fixed frame.

[0010] The fixed frame and filter can prevent dust from the outside air from entering the clean room.

[0011] Preferably, fixing blocks are welded and fixed at both ends of the outer wall of one side of the fixing frame, and the fixing blocks are welded and fixed to the outer wall of the partition. The output shaft of the first servo motor is connected and fixed to one end of the roller brush through a coupling. An infrared sensor is installed on the side of the outer wall of the partition near the fan.

[0012] When the infrared sensor detects a moving object nearby, the first servo motor drives the roller brush to rotate, and the rotating roller brush brushes off the dust on the filter screen inside the moving filter frame.

[0013] Preferably, an opening is provided on one side of the outer wall of the partition, and the opening is in sliding fit with the fixed plate. The top inner wall and bottom inner wall of the ventilation frame are provided with sliding grooves, and the two sliding grooves are in sliding fit with the square rod and the connecting plate respectively.

[0014] The fixed plate and filter frame move through the opening in the partition, while the square rod and connecting plate move along the slide.

[0015] Preferably, strip blocks are welded and fixed at both ends of the top of the connecting plate, and a groove is provided at the bottom of the filter frame to form a sliding fit with the strip blocks.

[0016] Two filter frames are inserted along the strip block on both sides of the fixed plate.

[0017] Preferably, positioning holes are provided at the bottom of one side of the outer wall of the filter frame and at both ends of one side of the outer wall of the connecting plate, and limit blocks are inserted into the positioning holes. The filter frame connecting plates are fastened together by the limit blocks, and filter screens are welded and fixed to the inner walls of the filter frame.

[0018] When the two filter frames abut against the outer walls of the two sides of the fixed plate, the limiting block is inserted into the positioning hole to limit and fix the position between the filter frame and the connecting plate.

[0019] Preferably, a second servo motor is installed and fixed at one end of the top slide groove of the ventilation frame, and the output shaft of the second servo motor is connected and fixed to one end of the screw through a coupling.

[0020] The output shaft of the second servo motor drives the screw to rotate, and the rotating screw drives the screwed square rod to move along the slide groove.

[0021] The beneficial effects of this utility model are as follows:

[0022] The filter uses a set filter frame and filter screen to filter dust particles entering the cleanroom. At regular intervals, a rotating screw drives a screw-connected square rod to move within the ventilation frame, causing the entire filter mechanism to move laterally. At this time, the first servo motor drives the roller brush to rotate. The rotating roller brush brushes off the dust on the filter screen in the moving filter frame. Combined with the airflow generated by the fan, the brushed-off dust particles are blown outward, completing the cleaning of the filter screen in the filter frame. This effectively solves the problem in existing technologies where prolonged operation leads to the accumulation of adsorbed dust and other particles on the surface of the filter element, thus affecting the filtration and adsorption effect of the filter element, and manual cleaning of the filter element is time-consuming and labor-intensive. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a ventilation structure for a cleanroom proposed in this utility model;

[0024] Figure 2 This is a rear view schematic diagram of the ventilation frame structure of a ventilation structure for a cleanroom proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the cleaning mechanism of a ventilation structure for a cleanroom proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the filter mechanism of a ventilation structure for a cleanroom proposed in this utility model.

[0027] In the diagram: 1. Ventilation frame; 2. Partition plate; 3. Fan; 4. Fixing frame; 5. Cleaning mechanism; 6. Fixing bracket; 7. Fixing block; 8. Roller brush; 9. First servo motor; 10. Filtering mechanism; 11. Fixing plate; 12. Connecting plate; 13. Strip block; 14. Square rod; 15. Filtering frame; 16. Limiting block; 17. Screw; 18. Second servo motor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Example:

[0030] Reference Figure 1-4 A ventilation structure for a cleanroom includes a ventilation frame 1. Symmetrically distributed partitions 2 are welded and fixed between the top and bottom of the ventilation frame 1. Fans 3 are installed and fixed inside the ventilation frame 1 on the side of the two partitions 2 that are far apart from each other. A fixed frame 4 is provided on one side of the fan 3, and a cleaning mechanism 5 is provided on the other side of the fan 3. The cleaning mechanism 5 includes a fixed frame 6, a roller brush 8 rotatably connected to the inner walls of both ends of the fixed frame 6, and a first servo motor 9 installed on the outer wall of one end of the fixed frame 6. A filter mechanism 10 is provided between the cleaning mechanism 5 and the fan 3. The filter mechanism 10 includes a fixed plate 11, a connecting plate 12 welded and fixed to the bottom of the fixed plate 11, a square rod 14 welded and fixed to the top of the fixed plate 11, filter frames 15 respectively provided on both sides of the fixed plate 11, and a screw 17 screwed to one end of the square rod 14.

[0031] The outer walls of the fixed frame 4 are welded and fixed to the inner walls of the ventilation frame 1 and the outer walls of the partition 2, respectively. Filter screens are welded and fixed to the inner walls of the fixed frame 4. The fixed frame 4 and the filter screen can prevent dust in the outside air from entering the clean room. Fixing blocks 7 are welded and fixed to both ends of the outer wall of one side of the fixed frame 6. The fixing blocks 7 are welded and fixed to the outer wall of the partition 2. The output shaft of the first servo motor 9 is connected and fixed to one end of the roller brush 8 through a coupling. An infrared sensor is installed on the side of the outer wall of the partition 2 near the fan 3. When the infrared sensor detects that an object is moving nearby, the first servo motor 9 drives the roller brush 8 to rotate. The rotating roller brush 8 brushes off the dust on the filter screen in the moving filter frame 15.

[0032] An opening is provided on one side of the outer wall of the partition 2, and the opening is slidably engaged with the fixed plate 11. The top and bottom inner walls of the ventilation frame 1 are provided with sliding grooves, and the two sliding grooves are slidably engaged with the square rod 14 and the connecting plate 12 respectively. The fixed plate 11 and the filter frame 15 move through the opening in the partition 2. The square rod 14 and the connecting plate 12 move along the sliding groove. The top two ends of the connecting plate 12 are welded and fixed with strip blocks 13. The bottom of the filter frame 15 is provided with a groove that is slidably engaged with the strip blocks 13. The two filter frames 15 are respectively inserted into the two sides of the fixed plate 11 along the strip blocks 13.

[0033] Positioning holes are provided at the bottom of one outer wall of the filter frame 15 and at both ends of one outer wall of the connecting plate 12. Limiting blocks 16 are inserted into the positioning holes. The filter frame 15 and the connecting plate 12 are fastened together by the limiting blocks 16. Filter screens are welded and fixed to the inner walls of the filter frame 15. When the two filter frames 15 abut against the outer walls of the fixing plate 11 on both sides, the limiting blocks 16 are inserted into the positioning holes to limit and fix the position between the filter frame 15 and the connecting plate 12. A second servo motor 18 is installed and fixed at one end of the top slide groove of the ventilation frame 1. The output shaft of the second servo motor 18 is connected and fixed to one end of the screw 17 through a coupling. The output shaft of the second servo motor 18 drives the screw 17 to rotate. The rotating screw 17 drives the screwed square rod 14 to move along the slide groove.

[0034] Working principle:

[0035] During operation, two fans blow air towards the cleaning mechanism 5, thereby transporting air from the cleanroom to the outside. The channel structure between the two partitions 2 draws outside air into the cleanroom due to the negative pressure inside. The filter frame 15 and filter screen filter the dust particles in the air entering the cleanroom. At regular intervals, the second servo motor 18 drives the screw 17 to rotate. The rotating screw 17 drives the screwed square rod 14 to move within the ventilation frame 1, thereby causing the entire filter mechanism 10 to move laterally. When the infrared sensor detects a moving object nearby, the first servo motor 9 drives the roller brush 8 to rotate. The rotating roller brush 8 brushes off the dust on the filter screen inside the moving filter frame 15. Combined with the airflow generated by the fans, the brushed-off dust particles are blown outward, completing the cleaning of the filter screen inside the filter frame 15.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A ventilation structure for a cleanroom, comprising a ventilation frame (1), characterized in that, Symmetrically distributed partitions (2) are welded and fixed between the top and bottom of the ventilation frame (1), and a fan (3) is installed and fixed in the ventilation frame (1) on the side of the two partitions (2) that are far apart from each other. A fixed frame (4) is provided on one side of the fan (3), and a cleaning mechanism (5) is provided on the other side of the fan (3). The cleaning mechanism (5) includes a fixed frame (6), a roller brush (8) rotatably connected to the inner walls of both ends of the fixed frame (6), and a first servo motor (9) installed on the outer wall of one end of the fixed frame (6). A filter mechanism (10) is provided between the cleaning mechanism (5) and the fan (3), and the filter mechanism (10) includes a fixed plate (11), a connecting plate (12) welded and fixed to the bottom of the fixed plate (11), a square rod (14) welded and fixed to the top of the fixed plate (11), filter frames (15) respectively provided on both sides of the fixed plate (11), and a screw (17) screwed to one end of the square rod (14).

2. The ventilation structure for a cleanroom according to claim 1, characterized in that, The outer walls of the fixed frame (4) are welded and fixed to the inner wall of the ventilation frame (1) and the outer wall of the partition (2), and the inner walls of the fixed frame (4) are all welded and fixed with filter screens.

3. The ventilation structure for a cleanroom according to claim 1, characterized in that, Fixing blocks (7) are welded to both ends of the outer wall of one side of the fixing frame (6), and the fixing blocks (7) are welded to the outer wall of the partition (2). The output shaft of the first servo motor (9) is connected to one end of the roller brush (8) through a coupling. An infrared sensor is installed on the side of the outer wall of the partition (2) near the fan (3).

4. A ventilation structure for a cleanroom according to claim 1, characterized in that, The partition (2) has an opening on one side of its outer wall, and the opening is in sliding fit with the fixing plate (11). The top inner wall and bottom inner wall of the ventilation frame (1) are both provided with sliding grooves, and the two sliding grooves are in sliding fit with the square rod (14) and the connecting plate (12) respectively.

5. A ventilation structure for a cleanroom according to claim 1, characterized in that, The top two ends of the connecting plate (12) are welded and fixed with strip blocks (13), and the bottom of the filter frame (15) is provided with a groove that slides with the strip blocks (13).

6. A ventilation structure for a cleanroom according to claim 1, characterized in that, The bottom of one side of the outer wall of the filter frame (15) and both ends of one side of the outer wall of the connecting plate (12) are provided with positioning holes, and limit blocks (16) are inserted into the positioning holes. The filter frame (15) and the connecting plate (12) are fastened together by the limit blocks (16). The filter screens are welded and fixed to the inner walls of the filter frame (15).

7. A ventilation structure for a cleanroom according to claim 4, characterized in that, The second servo motor (18) is fixedly installed at one end of the top slide groove of the ventilation frame (1), and the output shaft of the second servo motor (18) is connected and fixed to one end of the screw (17) through a coupling.

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