Air return structure of clean room

Abstract

The utility model relates to a clean room air return structure, which belongs to the technical field of clean room air return and comprises a receiving box, a filter box fixedly connected to the top end of the receiving box, a mounting frame arranged on the outer side of the filter box, a second fixing frame fixedly connected to the inner wall of the filter box, and first fixing frames fixedly connected to two sides of the second fixing frame. And filter screens are fixedly connected to the interiors of the first fixing frames. The filter screen cleaning device has the advantages that when the filter screen in the first fixing frame needs to be cleaned, the cleaning plate can be driven to move up and down through rotation of the threaded rod, the cleaning plate can be more stable and not prone to shaking in the up-down lifting process through the arrangement of the fixing rod, dust on the surface of the filter screen can be scraped off, and the cleaning effect is better. And through the arrangement of the dust collecting mechanism, the scraped dust can be collected, and then workers can conveniently collect and treat the dust in a centralized mode.

Description

Technical Field

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

[0002] The clean room environmental monitoring and management system is a system for the internal environment management of the clean room. It plays a very important role. The clean room is also called a dust-free workshop, a clean room or a clean room. At the same time, the main function of the clean room is indoor pollution control. Without a clean room, pollution-sensitive parts cannot be mass-produced. At the same time, clean rooms are generally equipped with a unique return air structure.

[0003] After searching, a Chinese patent discloses a clean room return air structure (authorization announcement number CN219454163U), including a mounting frame, the front of the mounting frame is movably connected to the return air frame, the back of the mounting frame is fixedly provided with a filter box, and the inner wall of the filter box is fixedly provided with a filter mechanism. Although the patented technology can drive the protrusion to extend and retract through the reset spring, the protrusion abuts in the groove, and the return air frame can be installed on the mounting frame. The installation is simple and quick. When disassembly is required, the return air frame can be removed by the opposite operation. The structure is simple and easy to disassemble and assemble. The return air frame can be quickly replaced, which is beneficial to improve the return air effect. The incoming air will first enter through the filter slot, and then pass through the coarse filter screen plate, the fine filter screen plate and the disinfection filter plate in turn for multiple filtration, and finally sterilize and return the air to the clean room through the return air slot, which can ensure the cleanliness and freshness of the clean room, avoid pollution, and increase the functionality of the structure.

[0004] However, the above device still has some shortcomings in actual use. The most obvious one is that the coarse filter plate and the fine filter plate in the above clean room return air structure are not provided with a cleaning structure. When the return air structure is used for a long time, a lot of dust will adhere to the surface of the filter, which will further affect the return air effect of the return air structure, thereby failing to achieve the best use effect of the device. Utility Model Content

[0005] In view of the problem in the prior art that: the coarse filter plate and the fine filter plate in the above-mentioned clean room return air structure are not provided with a cleaning structure, when the return air structure is used for a long time, a lot of dust will adhere to the surface of the filter, which will further affect the return air effect of the return air structure, thereby failing to achieve the best use effect of the device, the main purpose of the present utility model is to provide a clean room return air structure.

[0006] The technical solution of the utility model is as follows: a clean room return air structure comprises a receiving box, a filter box is fixedly connected to the top of the receiving box, a mounting frame is arranged on the outer side of the filter box, a second fixed frame is fixedly connected to the inner wall of the filter box, both sides of the second fixed frame are fixedly connected to the first fixed frame, a filter screen is fixedly connected inside the first fixed frame, a threaded rod is rotatably connected inside the second fixed frame, a cleaning plate is threadedly connected to the outer side of the threaded rod, a fixed rod is fixedly connected inside the second fixed frame, the cleaning plate is slidably connected to the fixed rod, brushes are arranged on both sides of the cleaning plate, a card slot is opened at the bottom end of the inner wall of the first fixed frame, a dust collecting mechanism is arranged inside the card slot, and a mounting mechanism is arranged on the outer side of the mounting frame.

[0007] By adopting the above technical solution, the cleaning plate is driven to move up and down by the rotation of the threaded rod, so that the dust on the surface of the filter can be scraped off, the filtering effect of the filter on the dust can be restored, and the impact of dust on the return air structure can be reduced. The scraped dust can be collected by the setting of the dust collecting mechanism, which makes it convenient for the staff to collect and process the dust in a centralized manner.

[0008] As a preferred embodiment, the mounting mechanism includes two mounting plates installed around the mounting frame, a return air frame is provided on the side of the mounting frame away from the filter box, two fixing plates are fixedly connected around the return air frame, insertion holes are provided inside the fixing plates, a U-shaped piece is inserted between the fixing plate and the mounting plate, threads are provided at both ends of the U-shaped piece, fixing nuts are threadedly connected at both ends of the U-shaped piece, and the fixing nuts are in conflict with the outer sides of the mounting plates.

[0009] By adopting the above technical solution, the return air frame is fitted with the installation frame, and a U-shaped piece is inserted into the fixing plate and the installation plate, and then the U-shaped piece is fixed with a fixing nut, thereby facilitating the installation and disassembly of the return air frame.

[0010] As a preferred embodiment, the dust collecting mechanism includes a dust collecting box slidably connected to the inside of the card slot, the bottom end of the dust collecting box is fixedly connected to a magnetic plate, and the inner wall of the card slot is fixedly connected to an iron plate.

[0011] By adopting the above technical solution, the dust box can be fixed by using the magnetic plate and the iron plate in combination, and the dust box can be easily pulled out of the card slot.

[0012] As a preferred implementation, a sealing groove is provided on a side of the installation frame close to the return air frame, and a sealing member is fixedly connected to a side of the return air frame close to the installation frame, and the sealing member is snap-fitted to the sealing groove.

[0013] By adopting the above technical solution, the sealing performance between the return air frame and the installation frame can be improved, thereby improving the use effect of the return air structure.

[0014] As a preferred implementation, return air slots are equidistantly provided inside the return air frame, and handles are fixedly connected to both ends of the outer side of the return air frame.

[0015] By adopting the above technical solution and setting the return air slot, the return air structure can be used more easily.

[0016] As a preferred embodiment, a servo motor is fixedly mounted on the top of the filter box, and the output shaft of the servo motor extends to the inside of the second fixed frame and is fixedly connected to the threaded rod.

[0017] By adopting the above technical solution, the rotation of the output shaft of the servo motor can drive the rotation of the threaded rod.

[0018] Compared with the prior art, the advantages and positive effects of the utility model are:

[0019] 1. In the utility model, when the filter screen in the first fixed frame needs to be cleaned, the cleaning plate can be driven to move up and down by rotating the threaded rod, and the setting of the fixed rod can make the cleaning plate more stable and less likely to shake during the up and down lifting process, so that the dust on the surface of the filter screen can be scraped off, the filtering effect of the filter screen on the dust can be restored, and the influence of the dust on the return air structure can be reduced. The scraped dust can be collected by the setting of the dust collecting mechanism, so that it is convenient for the staff to collect and process the dust in a centralized manner.

[0020] 2. In the utility model, when dust falls from the surface of the filter, it can fall into the dust box at the bottom, and the dust box can be fixed by the coordinated use of the magnetic plate and the iron plate, and the dust box can be easily pulled out of the card slot, so as to facilitate the collection and treatment of the fallen dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the fixed frame structure of the utility model;

[0023] Figure 3 For this utility model Figure 1 The enlarged view of point A in the middle;

[0024] Figure 4 For this utility model Figure 2 Enlarged view of point B in the middle.

[0025] Legend: 1. Receiving box; 2. Filter box; 3. Servo motor; 4. Mounting frame; 5. Sealing groove; 6. Return air frame; 7. Seal; 8. Return air slot; 9. Fixing plate; 10. Socket; 11. First fixing frame; 12. Cleaning plate; 13. Fixing rod; 14. Slot; 15. Threaded rod; 16. Filter; 17. Iron plate; 18. U-shaped piece; 19. Fixing nut; 20. Magnetic plate; 21. Dust box; 22. Second fixing frame. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0027] Reference Figure 1-4 The clean room return air structure includes a receiving box 1, a filter box 2 is fixedly connected to the top of the receiving box 1, a mounting frame 4 is arranged on the outside of the filter box 2, a second fixed frame 22 is fixedly connected to the inner wall of the filter box 2, the first fixed frame 11 is fixedly connected to both sides of the second fixed frame 22, a filter screen 16 is fixedly connected to the inside of the first fixed frame 11, a threaded rod 15 is rotatably connected to the inside of the second fixed frame 22, a cleaning plate 12 is threadedly connected to the outside of the threaded rod 15, a fixing rod 13 is fixedly connected to the inside of the second fixed frame 22, the cleaning plate 12 is slidably connected to the fixing rod 13, brushes are arranged on both sides of the cleaning plate 12, a card slot 14 is opened at the bottom end of the inner wall of the first fixed frame 11, a dust collecting mechanism is arranged inside the card slot 14, and a mounting mechanism is arranged on the outside of the mounting frame 4.

[0028] When the filter 16 in the first fixed frame 11 needs to be cleaned, the cleaning plate 12 can be driven to move up and down by rotating the threaded rod 15, and the setting of the fixed rod 13 can make the cleaning plate 12 more stable and less likely to shake during the up and down lifting process, so that the dust on the surface of the filter 16 can be scraped off, the filtering effect of the filter 16 on the dust can be restored, and the influence of the dust on the return air structure can be reduced. The scraped dust can be collected by the setting of the dust collecting mechanism, which makes it convenient for the staff to collect and process the dust in a centralized manner.

[0029] Reference Figure 3The mounting mechanism includes two mounting plates 23 mounted around the mounting frame 4. A return air frame 6 is provided on the side of the mounting frame 4 away from the filter box 2. Two fixing plates 9 are fixedly connected around the return air frame 6. Plug holes 10 are provided inside the fixing plates 9. A U-shaped piece 18 is inserted between the fixing plates 9 and the mounting plate 23. Threads are provided at both ends of the U-shaped piece 18. Fixing nuts 19 are threadedly connected at both ends of the U-shaped piece 18. The fixing nuts 19 are in conflict with the outer side of the mounting plate 23.

[0030] When the return air frame 6 needs to be fixedly installed on the mounting frame 4, the return air frame 6 can be fitted with the mounting frame 4, and the U-shaped piece 18 can be inserted into the fixing plate 9 and the mounting plate 23, and then the U-shaped piece 18 can be fixed with the fixing nut 19, thereby facilitating the installation and disassembly of the return air frame 6.

[0031] Reference Figure 4 The dust collecting mechanism includes a dust collecting box 21 slidably connected to the inside of the card slot 14 , the bottom end of the dust collecting box 21 is fixedly connected to a magnetic plate 20 , and the inner wall of the card slot 14 is fixedly connected to an iron plate 17 .

[0032] When dust falls from the surface of the filter 16, it can fall into the dust box 21 at the bottom. The magnetic plate 20 and the iron plate 17 can be used together to fix the dust box 21, and the dust box 21 can be easily pulled out of the slot 14, so that the fallen dust can be collected and processed.

[0033] Reference Figure 1 A sealing groove 5 is provided on one side of the mounting frame 4 close to the return air frame 6 , and a sealing member 7 is fixedly connected to one side of the return air frame 6 close to the mounting frame 4 , and the sealing member 7 is snap-fitted to the sealing groove 5 .

[0034] When in use, the sealing member 7 and the sealing groove 5 are used in coordination to improve the sealing performance between the return air frame 6 and the mounting frame 4 , thereby improving the use effect of the return air structure.

[0035] Reference Figure 1 The interior of the return air frame 6 is provided with return air slots 8 at equal intervals, and handles are fixedly connected to both ends of the outer side of the return air frame 6. The return air slots 8 are provided to facilitate the use of the return air structure.

[0036] Reference Figure 1 A servo motor 3 is fixedly installed on the top of the filter box 2. The output shaft of the servo motor 3 extends to the inside of the second fixed frame 22 and is fixedly connected to the threaded rod 15. The rotation of the output shaft of the servo motor 3 can drive the rotation of the threaded rod 15.

[0037] Working principle: when the filter 16 in the first fixed frame 11 needs to be cleaned, the servo motor 3 can be started to drive the threaded rod 15 to rotate, and the cleaning plate 12 can be driven to move up and down. The setting of the fixed rod 13 can make the cleaning plate 12 more stable and less likely to shake during the up and down lifting process, so that the dust on the surface of the filter 16 can be scraped off, the filtering effect of the filter 16 on the dust is restored, and the influence of the dust on the return air structure is reduced. The dust scraped off can be collected by the setting of the dust collecting mechanism, so that it is convenient for the staff to Dust is collected and processed centrally, and when dust falls from the surface of the filter 16, it can fall into the dust box 21 at the bottom, and the magnetic plate 20 and the iron plate 17 are used in combination to fix the dust box 21, and at the same time, it is convenient to pull the dust box 21 out of the card slot 14, so as to facilitate the collection and processing of the fallen dust, and fit the return air frame 6 with the mounting frame 4, and insert the U-shaped piece 18 into the fixing plate 9 and the mounting plate 23, and then use the fixing nut 19 to fix the U-shaped piece 18, so as to facilitate the installation and disassembly of the return air frame 6.

[0038] The above are only preferred embodiments of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A clean room return air structure, comprising a receiving box (1), characterized in that: The top of the receiving box (1) is fixedly connected to a filter box (2), the outer side of the filter box (2) is provided with a mounting frame (4), the inner wall of the filter box (2) is fixedly connected to a second fixing frame (22), both sides of the second fixing frame (22) are fixedly connected to the first fixing frame (11), the interior of the first fixing frame (11) is fixedly connected to a filter screen (16), the interior of the second fixing frame (22) is rotatably connected to a threaded rod (15), the outer side of the threaded rod (15) is threadedly connected to a cleaning plate (12), the interior of the second fixing frame (22) is fixedly connected to a fixing rod (13), the cleaning plate (12) is slidably connected to the fixing rod (13), brushes are provided on both sides of the cleaning plate (12), the bottom end of the inner wall of the first fixing frame (11) is provided with a card slot (14), the interior of the card slot (14) is provided with a dust collecting mechanism, and the outer side of the mounting frame (4) is provided with a mounting mechanism.

2. The clean room return air structure according to claim 1, characterized in that: The mounting mechanism comprises two mounting plates (23) mounted on the four sides of the mounting frame (4); a return air frame (6) is arranged on the side of the mounting frame (4) away from the filter box (2); two fixing plates (9) are fixedly connected to the four sides of the return air frame (6); a plug hole (10) is provided inside each of the fixing plates (9); a U-shaped piece (18) is inserted between the fixing plate (9) and the mounting plate (23); threads are arranged at both ends of the U-shaped piece (18); fixing nuts (19) are threadedly connected to the two ends of the U-shaped piece (18); and the fixing nuts (19) are in contact with the outer sides of the mounting plate (23).

3. The clean room return air structure according to claim 1, characterized in that: The dust collecting mechanism comprises a dust collecting box (21) slidably connected inside the card slot (14), the bottom end of the dust collecting box (21) is fixedly connected to a magnetic plate (20), and the inner wall of the card slot (14) is fixedly connected to an iron plate (17).

4. The clean room return air structure according to claim 2, characterized in that: A sealing groove (5) is provided on one side of the installation frame (4) close to the return air frame (6), and a sealing member (7) is fixedly connected to one side of the return air frame (6) close to the installation frame (4), and the sealing member (7) is snap-fitted to the sealing groove (5).

5. The clean room return air structure according to claim 2, characterized in that: The interior of the return air frame (6) is provided with return air slots (8) at equal intervals, and handles are fixedly connected to both ends of the outer side of the return air frame (6).

6. The clean room return air structure according to claim 1, characterized in that: A servo motor (3) is fixedly mounted on the top of the filter box (2), and an output shaft of the servo motor (3) extends to the inside of the second fixed frame (22) and is fixedly connected to the threaded rod (15).

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