Air supply and exhaust mechanism of dust-free workshop

Abstract

The utility model relates to the technical field of air supply and exhaust mechanisms, and discloses an air supply and exhaust mechanism of a dust-free workshop, which comprises a shell and a filter mechanism, the outer wall of the front end of the shell is fixedly connected with an air frame, the two sides of the lower surface of the shell are fixedly connected with mounting boxes, the rear ends of the inner walls of the mounting boxes are fixedly connected with fans, and the fans are fixedly connected with the filter mechanism. The air suction end of the fan is fixedly connected with an air pipe, the rear end of the air pipe is fixedly connected with a mounting frame, the filtering mechanism comprises a first mounting frame, and a first dust filtering net is arranged on the inner wall of the first mounting frame. When the air supply and exhaust mechanism of the dust-free workshop is used, the handles on the two sides are pulled to conveniently drive the movable blocks to move upwards, the movable blocks move upwards to drive the reset springs to be continuously compressed and drive the sealing abutting blocks to move at the same time, and then the sealing abutting blocks are separated from the clamping grooves; and therefore, the dust filter screen I is taken, replaced or cleaned, dust accumulation can be reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of air supply and exhaust mechanisms, and in particular to air supply and exhaust mechanisms for cleanrooms. Background Technology

[0002] As is well known, a cleanroom is a specially designed clean environment used to control airborne particles, bacteria, and chemical contaminants, ensuring that products are not contaminated during the production process. These cleanrooms are widely used in industries such as pharmaceuticals, semiconductors, and aerospace. Their air filtration systems, efficient ventilation designs, and strict temperature and humidity controls maintain a specific cleanliness level. The construction and maintenance of cleanrooms require high standards of hygiene and safety to ensure product quality and production safety. Cleanrooms often use air supply and exhaust systems, which are mechanisms that replace outdoor air, accelerating air circulation and ensuring smooth indoor airflow.

[0003] However, in traditional cleanroom ventilation systems, dust accumulates on the filters after prolonged use, mainly due to dust deposition caused by airflow. As the amount of dust on the filters increases, airflow is obstructed, leading to a decrease in wind speed, which in turn affects the cleanliness and air exchange efficiency of the room. In addition, the accumulated dust may become a breeding ground for microorganisms, further reducing air quality. Therefore, technological improvements are urgently needed. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a cleanroom ventilation mechanism. When in use, pulling the handles on both sides facilitates the upward movement of multiple movable blocks. This upward movement of the movable blocks compresses the return spring, causing the sealing block to move and disengage from the locking groove. This allows the dust filter to be removed, replaced, or cleaned, reducing dust accumulation and extending the equipment's lifespan.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The air supply and exhaust mechanism of the cleanroom includes a housing and a filter mechanism. The housing has a fan frame fixedly connected to the outer wall at the front end, and mounting boxes fixedly connected to both sides of the lower surface of the housing. A fan is fixedly connected to the rear end of the inner wall of the mounting box. A duct is fixedly connected to the suction end of the fan, and a mounting bracket is fixedly connected to the rear end of the duct.

[0007] The filtering mechanism includes a first mounting frame, the inner wall of which is provided with a first dust filter screen. The front end of the top surface of the outer shell is provided with a mounting groove. Multiple return springs are fixedly connected to the top surface of the mounting groove. A sealing block is fixedly connected to the lower end of the return spring. Two movable blocks are fixedly connected to both sides of the upper end of the sealing block. Multiple snap-fit ​​holes are provided at the rear end of the outer wall of the mounting frame. A second mounting frame is provided at the rear end of the outer wall of the mounting frame. Multiple elastic snap-fit ​​blocks are fixedly connected to the outer wall of the front end of the second mounting frame. The inner wall of the second mounting frame is provided with a second dust filter screen.

[0008] Compared with the existing air supply and exhaust mechanisms in cleanrooms, the air supply and exhaust mechanism of this cleanroom uses multiple elastic buckles and locking holes to facilitate the removal, replacement, or cleaning of the second dust filter. It can work in conjunction with the first dust filter to improve the overall air filtration efficiency. When one filter needs to be cleaned or replaced, the other can continue to work, effectively reducing fluctuations in the workshop's air quality and demonstrating high practicality.

[0009] Furthermore, a storage slot is provided at the front end of the inner bottom surface of the outer shell, and the bottom surface of the storage slot is engaged with the lower surface of the mounting frame.

[0010] The bottom surface of the storage slot engages with the lower surface of the mounting frame to facilitate limiting the lower end of the mounting frame.

[0011] Furthermore, mounting plates are fixedly connected to the outer walls on both sides of the outer shell, and mounting holes are provided at the four corners of the mounting plates;

[0012] The mounting holes facilitate overall installation.

[0013] Furthermore, each of the air outlet ends of the fan is fixedly connected to a conveying pipe, and the adjacent sides of the conveying pipe are connected through the pipe. The inner walls of both sides of the outer casing are fixedly connected to flow pipes, the upper end of the conveying pipe is connected through the lower end of the flow pipe, and the outer wall of the front end of the flow pipe is connected through multiple flow ports.

[0014] Airflow is facilitated through delivery pipes, circulation pipes, and circulation ports.

[0015] Furthermore, a snap-fit ​​groove is provided in the middle of the upper surface of the mounting frame, and the lower end of the sealing block engages with the snap-fit ​​groove.

[0016] The lower end of the sealing block engages with the snap-fit ​​groove, which facilitates the limiting of the upper end of the mounting frame.

[0017] Furthermore, the upper ends of the movable blocks all extend through the mounting groove to the outside of the mounting groove and are all fixedly connected with handles;

[0018] The handle makes it easy to move the movable blocks.

[0019] Furthermore, the elastic locking block engages with the locking hole;

[0020] The elastic locking block engages with the locking hole to facilitate the limiting of the second mounting frame.

[0021] This utility model has the following beneficial effects:

[0022] 1. The cleanroom air supply and exhaust mechanism proposed in this utility model, compared with the existing cleanroom air supply and exhaust mechanism, allows multiple movable blocks to be moved upward by pulling the handles on both sides. The upward movement of the movable blocks causes the return spring to be continuously compressed, which in turn causes the sealing block to move, thereby causing the sealing block to disengage from the locking groove, so that the dust filter can be removed, replaced or cleaned, which can reduce dust accumulation and extend the service life of the equipment.

[0023] 2. The air supply and exhaust mechanism for cleanrooms proposed in this utility model, compared with the existing air supply and exhaust mechanisms for cleanrooms, allows for easy removal, replacement, or cleaning of the second dust filter screen through multiple elastic buckles and locking holes. It can work in conjunction with the first dust filter screen to improve the overall air filtration efficiency. When one filter screen needs to be cleaned or replaced, the other can continue to work, effectively reducing fluctuations in the air quality of the workshop and demonstrating high practicality. Attached Figure Description

[0024] Figure 1 This is a cross-sectional schematic diagram of the air supply and exhaust mechanism for a cleanroom proposed in this utility model.

[0025] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 This is an isometric drawing of the air supply and exhaust mechanism for the cleanroom proposed in this utility model;

[0027] Figure 4 This is an isometric schematic diagram of the air supply and exhaust mechanism for a cleanroom proposed in this utility model;

[0028] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0029] Figure 6 This is a schematic diagram of the air supply and exhaust mechanism for the cleanroom proposed in this utility model;

[0030] Figure 7 This is a front view of the air supply and exhaust mechanism for a cleanroom proposed in this utility model.

[0031] Legend:

[0032] 1. Outer casing; 11. Fan frame; 12. Storage slot; 13. Mounting plate; 14. Mounting hole; 15. Mounting box; 16. Fan; 17. Air duct; 18. Conveyor pipe; 19. Flow pipe; 110. Flow port;

[0033] 2. Filtering mechanism; 21. Mounting frame one; 22. Dust filter screen one; 23. Snap-fit ​​groove; 24. Mounting groove; 25. Return spring; 26. Movable block; 27. Sealing block; 28. Handle; 3. Mounting bracket; 31. Snap-fit ​​hole; 32. Mounting frame two; 33. Elastic snap-fit ​​block; 34. Dust filter screen two. Detailed Implementation

[0034] 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.

[0035] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 One embodiment provided by this utility model:

[0036] The air supply and exhaust mechanism of the cleanroom includes an outer shell 1 and a filter mechanism 2. The outer shell 1 has a fan frame 11 fixedly connected to the outer wall at the front end. The two sides of the lower surface of the outer shell 1 are fixedly connected to mounting boxes 15. The rear end of the inner wall of the mounting box 15 is fixedly connected to a fan 16. The suction end of the fan 16 is fixedly connected to a duct 17. The rear end of the duct 17 is fixedly connected to a mounting bracket 3.

[0037] The filter mechanism 2 includes a mounting frame 21, the inner wall of which is provided with a dust filter screen 22. The front end of the top surface of the outer casing 1 is provided with a mounting groove 24. Multiple return springs 25 are fixedly connected to the top surface of the mounting groove 24. A sealing block 27 is fixedly connected to the lower end of the return spring 25. Two movable blocks 26 are fixedly connected to both sides of the upper end of the sealing block 27. Multiple snap-fit ​​holes 31 are provided at the rear end of the outer wall of the mounting frame 3. A second mounting frame 32 is provided at the rear end of the outer wall of the mounting frame 3. Multiple elastic blocks 33 are fixedly connected to the outer wall at the front end of the second mounting frame 32. A second dust filter screen 34 is provided on the inner wall of the second mounting frame 32.

[0038] Compared with the existing air supply and exhaust mechanisms in cleanrooms, the air supply and exhaust mechanism of this cleanroom facilitates the removal, replacement, or cleaning of the second dust filter 34 by using multiple elastic buckles and locking holes 31. It can work in conjunction with the first dust filter 22 to improve the overall air filtration efficiency. When one filter needs to be cleaned or replaced, the other can continue to work, effectively reducing fluctuations in the air quality of the workshop and demonstrating high practicality.

[0039] Reference Figure 3 , Figure 6 and Figure 7 A storage slot 12 is provided at the front end of the bottom surface of the outer casing 1. The bottom surface of the storage slot 12 is engaged with the lower surface of the mounting frame 21. The engagement between the bottom surface of the storage slot 12 and the lower surface of the mounting frame 21 facilitates the limiting of the lower end of the mounting frame 21. Mounting plates 13 are fixedly connected to the outer walls on both sides of the outer casing 1. Mounting holes 14 are provided at the four corners of the mounting plates 13. The mounting holes 14 facilitate the overall installation. The air outlet of the fan 16 is fixedly connected to the conveying pipe 18. The adjacent sides of the conveying pipe 18 are connected through. Flow pipes 19 are fixedly connected to the inner walls on both sides of the outer casing 1. The upper end of the conveying pipe 18 is connected through to the lower end of the flow pipe 19. Multiple flow ports 110 are connected through the outer wall at the front end of the flow pipe 19. The conveying pipe 18, the flow pipe 19 and the flow ports 110 facilitate the flow of air.

[0040] Reference Figure 1 , Figure 5 and Figure 6 A snap-fit ​​groove 23 is provided in the middle of the upper surface of the mounting frame 21. The lower end of the sealing block 27 is engaged with the snap-fit ​​groove 23. The engagement of the lower end of the sealing block 27 with the snap-fit ​​groove 23 facilitates the limiting of the upper end of the mounting frame 21. The upper ends of the movable blocks 26 all penetrate through the mounting groove 24 to the outside of the mounting groove 24 and are all fixedly connected with handles 28. The handles 28 facilitate the movement of the movable blocks 26. The elastic locking block 33 is engaged with the snap-fit ​​hole 31. The engagement of the elastic locking block 33 with the snap-fit ​​hole 31 facilitates the limiting of the mounting frame 32.

[0041] Working principle: When in use, the fan 16 is turned on to draw air through the mounting frame 32, and the dust filter 34 performs preliminary filtration. Fresh air is then delivered to the circulation pipe 19 through the air duct, and the air is blown out through multiple circulation ports 110. The dust filter 22 performs secondary filtration of dust, and the air is then delivered into the workshop. Conversely, the fan 16 is reversed to exhaust the air in the workshop.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cleanroom ventilation system, comprising a housing (1) and a filter mechanism (2), characterized in that: The outer shell (1) has a wind frame (11) fixedly connected to the outer wall at the front end, and mounting boxes (15) fixedly connected to both sides of the lower surface of the outer shell (1). Fans (16) are fixedly connected to the rear end of the inner wall of the mounting boxes (15). Air ducts (17) are fixedly connected to the suction end of the fans (16), and mounting brackets (3) are fixedly connected to the rear end of the air ducts (17). The filtering mechanism (2) includes a first mounting frame (21), the inner wall of the first mounting frame (21) is provided with a first dust filter screen (22), the front end of the top surface of the outer shell (1) is provided with a mounting groove (24), the top surface of the mounting groove (24) is fixedly connected with a plurality of return springs (25), the lower end of the return springs (25) is fixedly connected with a sealing block (27), the upper end of the sealing block (27) is fixedly connected with two movable blocks (26) on both sides, the rear end of the outer wall of the mounting frame (3) is provided with a plurality of snap-fit ​​holes (31), the rear end of the outer wall of the mounting frame (3) is provided with a second mounting frame (32), the front end of the second mounting frame (32) is fixedly connected with a plurality of elastic snap-fit ​​blocks (33), and the inner wall of the second mounting frame (32) is provided with a second dust filter screen (34).

2. The air supply and exhaust mechanism for a cleanroom according to claim 1, characterized in that: The front end of the inner bottom surface of the outer shell (1) is provided with a storage groove (12), and the bottom surface of the storage groove (12) is engaged with the lower surface of the mounting frame (21).

3. The air supply and exhaust mechanism for a cleanroom according to claim 1, characterized in that: Mounting plates (13) are fixedly connected to the outer walls on both sides of the outer shell (1), and mounting holes (14) are provided at the four corners of the mounting plates (13).

4. The air supply and exhaust mechanism for a cleanroom according to claim 1, characterized in that: The air outlet of the fan (16) is fixedly connected to a conveying pipe (18), and the conveying pipe (18) is connected to the adjacent side. The inner walls of both sides of the outer shell (1) are fixedly connected to a flow pipe (19). The upper end of the conveying pipe (18) is connected to the lower end of the flow pipe (19), and the outer wall of the front end of the flow pipe (19) is connected to multiple flow ports (110).

5. The air supply and exhaust mechanism for a cleanroom according to claim 1, characterized in that: A snap-fit ​​groove (23) is provided in the middle of the upper surface of the mounting frame (21), and the lower end of the sealing block (27) is engaged with the snap-fit ​​groove (23).

6. The air supply and exhaust mechanism for a cleanroom according to claim 1, characterized in that: The upper ends of the movable blocks (26) all penetrate through the mounting groove (24) to the outside of the mounting groove (24) and are all fixedly connected with handles (28).

7. The air supply and exhaust mechanism for a cleanroom according to claim 1, characterized in that: The elastic locking block (33) engages with the locking hole (31).

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