A multi-layer filtering mechanism of an air supply system exhaust purification device

Abstract

This utility model discloses a multi-layer filtration mechanism for a fresh air system exhaust purification device, including a filter box. An outer plate is fixedly connected to one end of the filter box, and a filter plate is fixedly installed inside the outer plate. An inner plate is fixedly installed inside the filter box, and a filter screen is fixedly connected to one side of the inner plate. A cleaning mechanism is provided on one side of the filter screen. An air pump is located between the outer and inner plates of the filter box, and the air pump is fixedly installed on the inner wall of the filter box. A driving mechanism is provided on one side of the air pump, and a dust suction hood is fixedly installed above the air pump, located on one side of the filter screen. This invention solves the problem that multi-layer filtration mechanisms cannot collect floating dust when cleaning the filter screen, preventing the filter screen from filtering dust floating in the filter box again when using the fresh air system after cleaning. Therefore, it reduces the filtration burden on the filter screen, improves the cleaning effect on the filter box, reduces filter screen clogging, and extends the service life of the filter screen.

Description

Technical Field

[0001] This utility model relates to the technical field of filtration mechanisms in fresh air systems, specifically a multi-layer filtration mechanism for a fresh air system exhaust purification device. Background Technology

[0002] With increasing public concern about indoor air quality, the filtration performance of air conditioning and fresh air systems has become a key focus for consumers. A fresh air system is an independent air handling system consisting of a supply air system and an exhaust air system. It is divided into ducted fresh air systems and ductless fresh air systems. A ducted fresh air system consists of a fresh air unit and ductwork fittings. The fresh air unit purifies outdoor air and introduces it into the room, while the ductwork exhausts indoor air. A ductless fresh air system also consists of a fresh air unit, which purifies outdoor air and introduces it into the room. Relatively speaking, ducted fresh air systems are more suitable for industrial or large office areas due to their larger scale of installation, while ductless fresh air systems are more suitable for residential use due to their ease of installation. Fresh air systems are generally used in conjunction with air conditioning and filters.

[0003] A search revealed that patent application number 202420931754.8 provides a filter mechanism for an air conditioning fresh air system, belonging to the field of fresh air filtration technology. The mechanism includes a filter box, with an air outlet duct fixed to the left side wall of the filter box. An outer plate is fixedly connected to the right end of the filter box via screws. A dustproof net is fixedly connected inside the outer plate. An mounting plate is fixedly connected inside the filter box, and a filter screen is fixedly connected inside the mounting plate. An installation rod is provided between the dustproof net and the filter screen, allowing the cleaning component to rotate slowly to reduce wear and facilitating replacement. This solves the problems of inconvenience in cleaning the filter screen and replacing the cleaning component in existing technologies.

[0004] However, the above-mentioned patented solution has certain shortcomings. In the process of cleaning the filter mechanism, the filter mechanism is cleaned by the first cleaning brush and the second cleaning brush. However, most of the dust on the filter screen floats inside the filter box during the cleaning process. Although the dust can be collected by the collection box, the scattered dust cannot be collected. When the fresh air system is used again, the dust floating in the filter box will be adsorbed on the filter screen again, thus reducing the cleaning effect of the filter box, increasing the filtration burden on the filter screen and shortening the service life of the filter screen. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a multi-layer filtration mechanism for a fresh air system exhaust purification device. This solves the problem that the multi-layer filtration mechanism cannot collect floating dust when cleaning the filter screen, thus preventing the filter screen from filtering dust floating in the filter box again when using the fresh air system after cleaning. Therefore, it can reduce the filtration burden on the filter screen, improve the cleaning effect on the filter box, reduce filter screen clogging, and extend the service life of the filter screen.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer filtration mechanism for a fresh air system exhaust purification device, comprising a filter box, an outer plate fixedly connected to one end of the filter box, a filter plate fixedly installed inside the outer plate, an inner plate fixedly installed inside the filter box, a filter screen fixedly connected to one side surface of the inner plate, a cleaning mechanism provided on one side surface of the filter screen, an air pump provided between the outer plate and the inner plate of the filter box, the air pump fixedly installed on the inner wall of the filter box, a driving mechanism provided on one side surface of the air pump, a dust suction hood fixedly installed above the air pump, the dust suction hood being located on one side of the filter screen, an exhaust pipe fixedly connected to the side surface of the air pump, one end of the exhaust pipe passing through the filter box and connected to a dust collection assembly, and a disinfection mechanism provided on the other side surface of the inner plate.

[0007] Preferably, the cleaning mechanism includes a cleaning brush II and a cleaning brush I, with the cleaning brush II located on one side surface of the filter screen and the cleaning brush I located on one side surface of the filter plate. A drive shaft is rotatably connected inside the filter plate, with one end of the drive shaft fixedly connected to one side surface of the cleaning brush II and the other end of the drive shaft fixedly connected to the cleaning brush I via a screw. A transmission component is provided on the side surface of the drive shaft.

[0008] Preferably, the drive mechanism includes a pulley II, and one side surface of the pulley II is connected to the air pump via a drive shaft. A belt is fitted on the side surface of the pulley II, and one end of the belt is fitted with a pulley I. A dual-axis motor is fixedly connected to one side surface of the pulley I, and the dual-axis motor is fixedly connected to the inner wall of the filter box.

[0009] Preferably, the transmission assembly includes a support frame, which is fixedly connected to the side surface of the drive shaft. One end of the support frame is fixedly connected to a gear ring, and the side surface of the gear ring is meshed with a gear. The gear is fixedly connected to the other end of the dual-shaft motor.

[0010] Preferably, the dust collection assembly includes a mounting head, which is fixedly connected to one end of the exhaust pipe. A dust collection hood is threadedly connected to one side of the mounting head, and an installation groove is provided on the inner surface of the dust collection hood. A filter cover is provided on one side of the dust collection hood, and a locking block is fixedly connected to one end of the filter cover. The locking block is aligned with the installation groove.

[0011] Preferably, the upper surface of the filter box is provided with an inspection port, and an assembly plate is installed above the inspection port. The other end of the filter box is fixedly connected to an exhaust pipe.

[0012] Preferably, the disinfection mechanism includes a protective cover, which is installed on the other side surface of the inner plate. An activated carbon filter layer is fixedly installed inside the protective cover, and disinfection lamps are symmetrically fixedly connected to one side surface of the protective cover.

[0013] This invention provides a multi-layer filtration mechanism for a fresh air system exhaust purification device. Compared with the prior art, it has the following advantages:

[0014] 1. By cooperating with the air pump and drive mechanism connected to one side of the air pump inside the filter box, the dust suction cover fixedly connected to the upper surface of the air pump, and the exhaust pipe fixedly connected to the side surface of the air pump, the dust inside the filter box can be discharged from the filter box while cleaning the filter mechanism. This solves the problem in the above patent that floating dust cannot be collected when cleaning the filter screen. It also prevents the filter screen from filtering the floating dust in the filter box again when using the fresh air system after cleaning the filter screen. Therefore, it can reduce the filtration burden on the filter screen, improve the cleaning effect of the filter box, reduce the clogging of the filter screen, and extend the service life of the filter screen.

[0015] 2. The protective cover fixedly connected to the other side of the inner panel and the activated carbon filter layer installed inside the protective cover work together with the disinfection lamp symmetrically fixedly connected to one side of the protective cover to eliminate harmful gases and bacteria in the air, thus improving the filtration effect of the multi-layer filtration mechanism. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A schematic diagram of the side view structure;

[0018] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0019] Figure 4 This utility model Figure 1 Schematic diagram of the internal structure of the middle filter box;

[0020] Figure 5 This utility model Figure 4 Schematic diagram of the inner structure of the outer and inner panels.

[0021] In the diagram: 1. Filter box; 101. Inspection port; 102. Assembly plate; 103. Exhaust pipe; 2. Dust collection hood; 201. Mounting slot; 202. Filter cover; 203. Locking block; 3. Outer plate; 301. Cleaning brush I; 302. Filter plate; 303. Screw; 4. Mounting head; 401. Exhaust pipe; 402. Dust suction hood; 403. Air pump; 5. Dual-shaft motor; 501. Gear; 502. Gear ring; 503. Support frame; 504. Drive shaft; 505. Cleaning brush II; 6. Inner plate; 601. Protective cover; 602. Disinfection lamp; 603. Activated carbon filter layer; 604. Filter screen; 7. Pulley I; 701. Belt; 702. Pulley II. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 This utility model provides a technical solution: a multi-layer filtration mechanism for a fresh air system exhaust purification device, including a filter box 1. One end of the filter box 1 is fixedly connected to an outer plate 3. A filter plate 302 is fixedly installed inside the outer plate 3. An inner plate 6 is fixedly installed inside the filter box 1. A filter screen 604 is fixedly connected to one side surface of the inner plate 6. A cleaning mechanism is provided on one side surface of the filter screen 604. An air pump 403 is provided between the outer plate 3 and the inner plate 6 of the filter box 1. The air pump 403 is fixedly installed on the inner wall of the filter box 1. A driving mechanism is provided on one side surface of the air pump 403. A dust suction hood 402 is fixedly installed above the air pump 403. The dust suction hood 402 is located on one side of the filter screen 604. An exhaust pipe 401 is fixedly connected to the side surface of the air pump 403. One end of the exhaust pipe 401 passes through the filter box 1 and is connected to a dust collection assembly. A disinfection mechanism is provided on the other side surface of the inner plate 6.

[0024] As a technical optimization of this utility model, the cleaning mechanism includes cleaning brush II 505 and cleaning brush I 301. Cleaning brush II 505 is located on one side surface of filter screen 604, and cleaning brush I 301 is located on one side surface of filter plate 302. A drive shaft 504 is rotatably connected inside filter plate 302. One end of drive shaft 504 is fixedly connected to one side surface of cleaning brush II 505, and the other end of drive shaft 504 is fixedly connected to cleaning brush I 301 through screw 303. A transmission component is provided on the side surface of drive shaft 504. The cleaning brush II 505 and cleaning brush I 301 in the cleaning mechanism can clean the dust accumulated on filter plate 302 and filter screen 604, avoiding clogging of filter plate 302 and filter screen 604 and affecting the use of fresh air system.

[0025] As a technical optimization of this utility model, the driving mechanism includes pulley II 702. One side surface of pulley II 702 is connected to air pump 403 via a drive shaft. A belt 701 is sleeved on the side surface of pulley II 702. One end of belt 701 is sleeved with pulley I 7. A dual-axis motor 5 is fixedly connected to one side surface of pulley I 7. The dual-axis motor 5 is fixedly connected to the inner wall of filter box 1. The dual-axis motor 5, pulley I 7, belt 701, and pulley II 702 can drive air pump 403 to operate, thereby removing dust from inside filter box 1 when cleaning filter screen 604 and filter plate 302. This prevents filter screen 604 from filtering the dust floating inside filter box 1 again when using the fresh air system after cleaning, thus reducing the filtration burden on filter screen 604.

[0026] As a technical optimization of this utility model, the transmission component includes a support frame 503, which is fixedly connected to the side surface of the drive shaft 504. A gear ring 502 is fixedly connected to one end of the support frame 503, and a gear 501 is meshed with the side surface of the gear ring 502. The gear 501 is fixedly connected to the other end of the dual-axis motor 5. Through the cooperation between the support frame 503, the gear ring 502, and the gear 501 in the transmission mechanism, the cleaning brush II 505 and the cleaning brush I 301 can be driven to rotate simultaneously, thus facilitating the cleaning of dust accumulated on the filter plate 302 and the filter screen 604.

[0027] As a technical optimization of this utility model, the dust collection assembly includes a mounting head 4, which is fixedly connected to one end of the exhaust pipe 401. A dust collection hood 2 is threadedly connected to one side of the mounting head 4. An installation groove 201 is provided on the inner surface of the dust collection hood 2. A filter cover 202 is provided on one side of the dust collection hood 2. A locking block 203 is fixedly connected to one end of the filter cover 202. The locking block 203 is aligned with the installation groove 201. The dust discharged by the air pump 403 can be collected through the dust collection hood 2 and the filter cover 202, so as to avoid the dust being directly discharged into the outside air and causing air pollution.

[0028] As a technical optimization of this utility model, an inspection port 101 is provided on the upper surface of the filter box 1, an assembly plate 102 is installed above the inspection port 101, and an exhaust pipe 103 is fixedly connected to the other end of the filter box 1.

[0029] As a technical optimization of this utility model, the disinfection mechanism includes a protective cover 601, which is installed on the other side surface of the inner plate 6. An activated carbon filter layer 603 is fixedly installed inside the protective cover 601, and a disinfection lamp 602 is symmetrically fixedly connected to one side surface of the protective cover 601. The activated carbon filter layer 603 inside the protective cover 601 can filter harmful gases in the air and prevent harmful gases from being emitted into the indoor space. At the same time, the disinfection lamp 602 can eliminate bacteria and viruses in the air, further improving the air filtration quality.

[0030] In use, this invention filters larger dust particles from the air through the filter plate 302 inside the outer panel 3, followed by the filter screen 604 to filter smaller dust particles. Then, the activated carbon layer inside the activated carbon filter layer 603 filters harmful gases from the air. Finally, the disinfection lamp 602 eliminates bacteria in the air. When cleaning the filter plate 302 and filter screen 604 is required, the operator needs to start the dual-axis motor 5 in the drive mechanism. The dual-axis motor 5 drives the gear ring 502 to rotate via the gear 501. The gear ring 502, through the support frame 503, drives the cleaning brush II 505 and cleaning brush I 301 to rotate. At this time, cleaning brush I 301 and cleaning brush II 505 will respectively... The filter plate 302 and filter screen 604 are cleaned. The dust removed from the filter screen 604 by the cleaning brush II 505 will remain inside the filter box 1. During the cleaning process of the cleaning brush II 505, the dual-shaft motor 5 will drive the air pump 403 through pulley I 7, belt 701 and pulley II 702. Then the air pump 403 will draw the dust inside the filter box 1 into the exhaust pipe 401 through the dust suction hood 402, and then discharge it into the dust collection hood 2 and filter cover 202 through the exhaust pipe 401. After cleaning is completed, the operator will rotate and open the filter cover 202 and pour out the dust inside the filter cover 202 to prevent the filter screen 604 inside the filter box 1 from filtering the dust that was previously cleaned, thereby reducing the filtration load of the filtration mechanism.

[0031] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-layer filtering mechanism of an exhaust purification device of a fresh air system, comprising a filtering box (1), characterized in that: One end of the filter box (1) is fixedly connected to an outer plate (3), and a filter plate (302) is fixedly installed inside the outer plate (3). An inner plate (6) is fixedly installed inside the filter box (1), and a filter screen (604) is fixedly connected to one side surface of the inner plate (6). A cleaning mechanism is provided on one side surface of the filter screen (604). An air pump (403) is provided between the outer plate (3) and the inner plate (6) of the filter box (1), and the air pump (403) is fixedly installed on the inner wall of the filter box (1). A driving mechanism is provided on one side surface of the air pump (403), and a dust suction hood (402) is fixedly installed above the air pump (403). The dust suction hood (402) is located on one side of the filter screen (604). An exhaust pipe (401) is fixedly connected to the side surface of the air pump (403), and one end of the exhaust pipe (401) passes through the filter box (1) and is connected to a dust collection assembly. A disinfection mechanism is provided on the other side surface of the inner plate (6).

2. The multi-layer filtration mechanism of the fresh air system exhaust purification device according to claim 1, characterized in that: The cleaning mechanism includes a cleaning brush II (505) and a cleaning brush I (301), with the cleaning brush II (505) located on one side surface of the filter screen (604) and the cleaning brush I (301) located on one side surface of the filter plate (302). The filter plate (302) is rotatably connected to a drive shaft (504), with one end of the drive shaft (504) fixedly connected to one side surface of the cleaning brush II (505) and the other end of the drive shaft (504) fixedly connected to the cleaning brush I (301) via a screw (303). A transmission component is provided on the side surface of the drive shaft (504).

3. The multi-layer filtering mechanism of the fresh air system exhaust purification device according to claim 1, characterized in that: The drive mechanism includes a pulley II (702), and one side surface of the pulley II (702) is connected to the air pump (403) via a drive shaft. A belt (701) is fitted on the side surface of the pulley II (702), and a pulley I (7) is fitted on one end of the belt (701). A dual-axis motor (5) is fixedly connected to one side surface of the pulley I (7), and the dual-axis motor (5) is fixedly connected to the inner wall of the filter box (1).

4. The multi-layer filtering mechanism of the fresh air system exhaust purification device according to claim 2, characterized in that: The transmission assembly includes a support frame (503), and the support frame (503) is fixedly connected to the side surface of the drive shaft (504). One end of the support frame (503) is fixedly connected to a gear ring (502), and the side surface of the gear ring (502) is meshed with a gear (501). The gear (501) is fixedly connected to the other end of the dual-axis motor (5).

5. The multi-layer filtering mechanism of the fresh air system exhaust purification device according to claim 1, characterized in that: The dust collection assembly includes a mounting head (4), which is fixedly connected to one end of an exhaust pipe (401). A dust collection cover (2) is threadedly connected to one side of the mounting head (4), and an installation groove (201) is provided on the inner surface of the dust collection cover (2). A filter cover (202) is provided on one side of the dust collection cover (2), and a locking block (203) is fixedly connected to one end of the filter cover (202). The locking block (203) is aligned with the installation groove (201).

6. The multi-layer filtering mechanism of the fresh air system exhaust purification device according to claim 1, characterized in that: The filter box (1) has an inspection port (101) on its upper surface and an assembly plate (102) is installed above the inspection port (101). The other end of the filter box (1) is fixedly connected to an exhaust pipe (103).

7. The multi-layer filtering mechanism of the fresh air system exhaust purification device according to claim 1, characterized in that: The disinfection mechanism includes a protective cover (601), and the protective cover (601) is installed on the other side surface of the inner plate (6). An activated carbon filter layer (603) is fixedly installed inside the protective cover (601), and a disinfection lamp (602) is symmetrically fixedly connected to one side surface of the protective cover (601).

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