Multifunctional membrane method air purification and disinfection equipment
By designing a convenient mounting frame and cleaning mechanism, the problem of cumbersome disassembly and inconvenient cleaning of filters in existing air purification and disinfection equipment is solved, and convenient maintenance of filters and efficient cleaning of internal materials of the equipment is achieved.
Patent Information
- Application Number
- CN202421884697.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-06
AI Technical Summary
In existing air purification and disinfection equipment, the filter mesh is located inside the device, which makes disassembly and inconvenient to clean.
A multifunctional membrane air purification and disinfection equipment is designed, using a movable mounting frame and cleaning mechanism. Through the design of rotating threaded rods and mobile plates, the filter net is easily removed and inspected, and the cleaning and collection of filtered substances is achieved through the design of cleaning brushes and collection tanks.
The maintenance process of the filter is simplified, impurities accumulation inside the equipment are reduced, and the maintenance efficiency and purification effect of the equipment are improved.
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Figure CN222925687U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air purification equipment, in particular to a multifunctional membrane air purification and disinfection equipment. Background Technique
[0002] At the present stage in the purification workshop, due to the fact that the air conditioner outdoor unit is often not cleaned in time, harmful substances accumulate, resulting in the entry of harmful substances into the purification workshop, polluting the workshop structure boards, equipment and other facilities in the purification workshop. Therefore, it is necessary to use membrane air purification and disinfection equipment to purify the space.
[0003] The existing patent (publication number: CN216703894U) discloses a workshop air purifier. The utility model relates to the technical field of air purifiers, especially a workshop air purifier, including a purifier housing, a fixed housing and a limiting plate. The middle part of the inner side of the purifier housing is slidably connected with the fixed housing. The middle part of the left end face of the purifier housing is fixedly connected with the limiting plate through a fixed screw. The fixed housing is fixedly connected with a nano filter screen, an electrostatic dust removal layer, an active oxygen component and an improved activated carbon layer. The right end face of the fixed housing is fixedly connected with a sealing plate. In the utility model, through the arranged nano filter screen, active oxygen component, improved activated carbon layer and silver ion antibacterial evaporator, the space environment of the workshop is greatly improved. The final products are water, carbon dioxide and various non-toxic and harmless low molecular compounds, which can greatly improve the space environment of the workshop and create a comfortable and healthy environment for the front-line workers in the workshop. The inventor found the following problems in the prior art during the implementation of the present utility model. Nowadays, the air purification and disinfection equipment sucks in air and gradually filters the air through the filter screen inside the equipment. There are many harmful substances in the air inside the workshop, so the filter screen inside the purification equipment needs to be regularly maintained. Since the filter screen is located inside the device, the disassembly is relatively cumbersome. Secondly, since the device is located inside the workshop and the filter screen blocks a large amount of harmful substances, it is inconvenient to clean the filter screen. Content of the Utility Model
[0004] The purpose of the utility model is to provide a multifunctional membrane air purification and disinfection equipment to solve the problems of cumbersome disassembly and inconvenient cleaning of the filter screen due to the fact that the filter screen is located inside the device as mentioned in the above background technique. To achieve the above purpose, the utility model provides the following technical solution: a multifunctional membrane air purification and disinfection equipment, including a purification mechanism, the inner wall of the purification mechanism is fixedly connected with one side of an exhaust mechanism, and the inner wall of the purification mechanism is fixedly connected with one side of an installation mechanism. The installation mechanism includes a positioning frame, a limiting groove, an installation frame, a handle, a moving groove, a connection port, a threaded rod, a threaded block, a moving plate and a limiting block.
[0005] One side of the purification mechanism is fixedly connected to one side of the cleaning mechanism. The bottom end of the cleaning mechanism is fixedly connected to the top end of the collection mechanism. One side of the purification mechanism is fixedly connected to one side of the collection mechanism.
[0006] Preferably, the purification mechanism includes an equipment housing, ventilation grooves, sealing grooves, sealing rings, ventilation plates, photocatalyst filters, activated carbon filters, dust removal membrane filters, antibacterial filters, and dust filters. A ventilation groove is provided on one side of the inner wall of the equipment housing, and a sealing groove is provided on one side of the inner wall of the equipment housing. The inner wall of the sealing groove is fixedly connected to the outer wall of the sealing ring, and the inner wall of the ventilation groove is fixedly connected to the outer wall of the ventilation plate. The top of the equipment housing is fixedly connected to the inner wall of the dust filter.
[0007] Preferably, the exhaust mechanism is composed of a fixed frame, a support frame, a fixed groove, and an exhaust fan. One side of the fixed frame is fixedly connected to the inner wall of the equipment housing. The upper and lower ends of the support frame are respectively fixedly connected to the inner wall of the fixed frame. A fixed groove is provided inside the support frame. The inner wall of the fixed groove is fixedly connected to the outer wall of the exhaust fan.
[0008] Preferably, one side of the positioning frame is fixedly connected to the inner wall of the equipment housing. A limiting groove is provided on the side of the positioning frame away from the inner wall of the equipment housing. The inner wall of the sealing ring is movably connected to the outer wall of the mounting frame. One side of the mounting frame is fixedly connected to one side of the handle. Moving grooves are provided inside both sides of the mounting frame. The inner walls of the mounting frame are respectively fixedly connected to the outer walls of the photocatalyst filter, activated carbon filter, dust removal membrane filter, and antibacterial filter. A connection port is provided on one side of the moving groove. One end of the threaded rod is provided with a bearing. One end of the threaded rod is rotatably connected to the inner walls of both ends of the handle through the bearing. The inner wall of the threaded block is threadedly connected to the outer wall of the threaded rod. One side of the threaded block is fixedly connected to one end of the moving plate. The outer wall of the moving plate is movably connected to the inner wall of the moving groove. One side of the moving plate is fixedly connected to one end of the limiting block. The outer wall of the limiting block is movably connected to the inner wall of the connection port. The outer wall of the limiting block is movably connected to the inner wall of the limiting groove.
[0009] Preferably, the cleaning mechanism is composed of a cleaning frame, a stabilizing groove, a cleaning brush, and a connecting block. One side of the cleaning frame is fixedly connected to one side of the equipment housing. The cleaning frame is located above the sealing groove. A stabilizing groove is provided at the bottom of the cleaning frame. The inner wall of the stabilizing groove is fixedly connected to the outer wall of the cleaning brush. The bottom end of the cleaning frame is fixedly connected to the top end of the connecting block.
[0010] Preferably, the collection mechanism includes a collection rack, a collection groove, a rotation groove, a rotation rod, a damping ring and a rotation frame, and the top end of the collection rack is fixedly connected to the bottom end of the connection block. A collection groove is provided inside the collection rack, and a rotation groove is provided on one side of the collection groove. The inner wall of the rotation groove is rotatably connected to the outer wall of the rotation rod, and the outer wall of the rotation rod is fixedly connected to the inner wall of the damping ring. One end of the rotation rod is fixedly connected to one side of the rotation frame, and the side of the rotation frame away from the rotation rod is fixedly and rotatably connected to one side of the inner wall of the collection groove away from the rotation groove through a rotating shaft.
[0011] Compared with the prior art, the beneficial effects of the present utility model are:
[0012] In the present utility model, when removing the photocatalyst filter screen, the activated carbon filter screen, the dust removal film filter screen and the antibacterial filter screen, first rotate the threaded rod so that the threaded block moves along the outer wall of the threaded rod. The movement of the threaded block drives the moving plate to move, and the movement of the moving plate drives the limiting block away from the inside of the limiting groove, thereby releasing the limitation of the positioning frame on the mounting frame. Pull the handle to drive the mounting frame to move, and then remove the mounting frame, so as to repair the photocatalyst filter screen, the activated carbon filter screen, the dust removal film filter screen and the antibacterial filter screen inside the mounting frame, which facilitates the staff to repair the photocatalyst filter screen, the activated carbon filter screen, the dust removal film filter screen and the antibacterial filter screen.
[0013] In the present utility model, while the mounting frame is moving, the tops of the photocatalyst filter screen, the activated carbon filter screen, the dust removal film filter screen and the antibacterial filter screen inside the mounting frame are respectively in contact with the cleaning surfaces of the cleaning brushes. When the photocatalyst filter screen, the activated carbon filter screen, the dust removal film filter screen and the antibacterial filter screen inside the mounting frame are taken out, the cleaned substances fall into the collection groove and the inside of the rotation frame. When it is necessary to take out the substances, rotate the rotation rod to drive the rotation frame to flip through the damping of the damping ring through the rotating shaft. The flipping of the rotation frame causes the substances inside the rotation frame to fall, which facilitates the staff to clean and collect the filtered substances. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic diagram of the present utility model;
[0015] Figure 2 is a cross-sectional view of the present utility model;
[0016] Figure 3 is an exploded view of the present utility model;
[0017] Figure 4 is an exploded view of the air exhaust mechanism in the present utility model;
[0018] Figure 5 is an exploded view of the mounting mechanism in the present utility model;
[0019] Figure 6Explosion diagram of the cleaning mechanism in the present utility model;
[0020] Figure 7 Explosion diagram of the collection mechanism in the present utility model.
[0021] In the figure: 1. Purification mechanism; 101. Equipment housing; 102. Ventilation groove; 103. Sealing groove; 104. Sealing ring; 105. Ventilation plate; 106. Photocatalyst filter; 107. Activated carbon filter; 108. Dust removal membrane filter; 109. Antibacterial filter; 110. Dust filter; 2. Exhaust mechanism; 201. Fixed frame; 202. Support frame; 203. Fixed groove; 204. Exhaust fan; 3. Installation mechanism; 301. Positioning frame; 302. Limiting groove; 303. Installation frame; 304. Handle; 305. Moving groove; 306. Connection port; 307. Threaded rod; 308. Threaded block; 309. Moving plate; 310. Limiting block; 4. Cleaning mechanism; 401. Cleaning frame; 402. Stable groove; 403. Cleaning brush; 404. Connection block; 5. Collection mechanism; 501. Collection frame; 502. Collection groove; 503. Rotating groove; 504. Rotating rod; 505. Damping ring; 506. Rotating frame. Detailed implementation manners
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0023] Please refer to Figures 1 to 7 , the present utility model provides a technical solution: a multifunctional membrane method air purification and disinfection device, including a purification mechanism 1, the inner wall of the purification mechanism 1 is fixedly connected to one side of the exhaust mechanism 2, the inner wall of the purification mechanism 1 is fixedly connected to one side of the installation mechanism 3, and the installation mechanism 3 includes a positioning frame 301, a limiting groove 302, an installation frame 303, a handle 304, a moving groove 305, a connection port 306, a threaded rod 307, a threaded block 308, a moving plate 309 and a limiting block 310.
[0024] One side of the purification mechanism 1 is fixedly connected to one side of the cleaning mechanism 4, the bottom end of the cleaning mechanism 4 is fixedly connected to the top end of the collection mechanism 5, and one side of the purification mechanism 1 is fixedly connected to one side of the collection mechanism 5.
[0025] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 ,Figure 6 and Figure 7 As shown in Figure 6 and Figure 7 , the purification mechanism 1 includes an equipment housing 101, a ventilation groove 102, a sealing groove 103, a sealing ring 104, a ventilation plate 105, a photocatalyst filter screen 106, an activated carbon filter screen 107, a dust removal membrane filter screen 108, an antibacterial filter screen 109, and a dust filter screen 110. A ventilation groove 102 is formed on one side of the inner wall of the equipment housing 101, and a sealing groove 103 is formed on one side of the inner wall of the equipment housing 101. The inner wall of the sealing groove 103 is fixedly connected to the outer wall of the sealing ring 104, and the inner wall of the ventilation groove 102 is fixedly connected to the outer wall of the ventilation plate 105. The top of the equipment housing 101 is fixedly connected to the inner wall of the dust filter screen 110.
[0026] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , and Figure 7 , the exhaust mechanism 2 is composed of a fixing frame 201, a support frame 202, a fixing groove 203, and an exhaust fan 204. One side of the fixing frame 201 is fixedly connected to the inner wall of the equipment housing 101. The upper and lower ends of the support frame 202 are respectively fixedly connected to the inner wall of the fixing frame 201. A fixing groove 203 is formed inside the support frame 202, and the inner wall of the fixing groove 203 is fixedly connected to the outer wall of the exhaust fan 204. The air circulation is ensured by the exhaust fan 204.
[0027] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown in the figure, one side of the positioning frame 301 is fixedly connected to the inner wall of the device housing 101, and a limiting groove 302 is provided on the side of the positioning frame 301 away from the inner wall of the device housing 101. The inner wall of the sealing ring 104 is movably connected to the outer wall of the mounting frame 303, and one side of the mounting frame 303 is fixedly connected to one side of the handle 304. Moving grooves 305 are provided inside both sides of the mounting frame 303, and the inner walls of the mounting frame 303 are respectively fixedly connected to the outer walls of the photocatalyst filter screen 106, the activated carbon filter screen 107, the dust removal membrane filter screen 108, and the antibacterial filter screen 109. A connection port 306 is provided on one side of the moving groove 305, and one end of the threaded rod 307 is provided with a bearing. One end of the threaded rod 307 is rotatably connected to the inner walls of both ends of the handle 304 through the bearing, and the inner wall of the threaded block 308 is threadedly connected to the outer wall of the threaded rod 307. One side of the threaded block 308 is fixedly connected to one end of the moving plate 309, and the outer wall of the moving plate 309 is movably connected to the inner wall of the moving groove 305. One side of the moving plate 309 is fixedly connected to one end of the limiting block 310, and the outer wall of the limiting block 310 is movably connected to the inner wall of the connection port 306. The outer wall of the limiting block 310 is movably connected to the inner wall of the limiting groove 302. First, rotate the threaded rod 307 so that the threaded block 308 moves along the outer wall of the threaded rod 307. The movement of the threaded block 308 drives the moving plate 309 to move. The movement of the moving plate 309 drives the limiting block 310 away from the inside of the limiting groove 302, thereby releasing the limitation of the positioning frame 301 on the mounting frame 303. Pull the handle 304 to drive the mounting frame 303 to move, and then take out the mounting frame 303, so as to repair the photocatalyst filter screen 106, the activated carbon filter screen 107, the dust removal membrane filter screen 108, and the antibacterial filter screen 109 inside the mounting frame 303.
[0028] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 shown, the cleaning mechanism 4 is composed of a cleaning frame 401, a stable groove 402, a cleaning brush 403, and a connecting block 404. One side of the cleaning frame 401 is fixedly connected to one side of the device housing 101. The cleaning frame 401 is located above the sealing groove 103, and a stable groove 402 is provided at the bottom of the cleaning frame 401. The inner wall of the stable groove 402 is fixedly connected to the outer wall of the cleaning brush 403, and the bottom end of the cleaning frame 401 is fixedly connected to the top end of the connecting block 404. The tops of the photocatalyst filter screen 106, the activated carbon filter screen 107, the dust removal membrane filter screen 108, and the antibacterial filter screen 109 inside the mounting frame 303 are respectively in contact with the cleaning surface of the cleaning brush 403.
[0029] In this embodiment, as Figure 1 , Figure 2 , Figure 3, Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown in Figure 7 , the collection mechanism 5 includes a collection rack 501, a collection trough 502, a rotating trough 503, a rotating rod 504, a damping ring 505, and a rotating frame 506. The top end of the collection rack 501 is fixedly connected to the bottom end of the connection block 404. A collection trough 502 is provided inside the collection rack 501, and a rotating trough 503 is provided on one side of the collection trough 502. The inner wall of the rotating trough 503 is rotatably connected to the outer wall of the rotating rod 504, and the inner wall of the damping ring 505 is fixedly connected to the outer wall of the rotating rod 504. One end of the rotating rod 504 is fixedly connected to one side of the rotating frame 506, and the side of the rotating frame 506 away from the rotating rod 504 is fixedly and rotatably connected to one side of the inner wall of the collection trough 502 away from the rotating trough 503 through a rotating shaft. Rotating the rotating rod 504 drives the rotating frame 506 to flip through the damping of the damping ring 505, and the flipping of the rotating frame 506 causes the substances inside the rotating frame 506 to fall.
[0030] The usage method and advantages of the present utility model: When this multifunctional membrane method air purification and disinfection device is working, the working process is as follows:
[0031] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , when removing the photocatalyst filter screen 106, the activated carbon filter screen 107, the dust removal membrane filter screen 108, and the antibacterial filter screen 109, first rotate the threaded rod 307 so that the threaded block 308 moves along the outer wall of the threaded rod 307. The movement of the threaded block 308 drives the moving plate 309 to move. The movement of the moving plate 309 drives the limiting block 310 away from the inside of the limiting groove 302, thereby releasing the limitation of the positioning frame 301 on the mounting frame 303. Pull the handle 304 to drive the mounting frame 303 to move, and then remove the mounting frame 303, so as to repair the photocatalyst filter screen 106, the activated carbon filter screen 107, the dust removal membrane filter screen 108, and the antibacterial filter screen 109 inside the mounting frame 303. While the mounting frame 303 is moving, the tops of the photocatalyst filter screen 106, the activated carbon filter screen 107, the dust removal membrane filter screen 108, and the antibacterial filter screen 109 inside the mounting frame 303 are respectively in contact with the cleaning surface of the cleaning brush 403. When the photocatalyst filter screen 106, the activated carbon filter screen 107, the dust removal membrane filter screen 108, and the antibacterial filter screen 109 inside the mounting frame 303 are removed, the substances cleaned off fall into the collection trough 502 and the inside of the rotating frame 506. When it is necessary to remove the substances, rotate the rotating rod 504 to drive the rotating frame 506 to flip through the damping of the damping ring 505, and the flipping of the rotating frame 506 causes the substances inside the rotating frame 506 to fall.
[0032] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model, and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A multifunctional membrane air purification and disinfection device, comprising a purification mechanism (1), characterized in that: The inner wall of the purification mechanism (1) is fixedly connected to one side of the exhaust mechanism (2), and the inner wall of the purification mechanism (1) is fixedly connected to one side of the mounting mechanism (3), and the mounting mechanism (3) comprises a positioning frame (301), a limiting groove (302), a mounting frame (303), a handle (304), a movable groove (305), a connecting port (306), a threaded rod (307), a threaded block (308), a movable plate (309) and a limiting block (310); One side of the purification mechanism (1) is fixedly connected to one side of the cleaning mechanism (4), the bottom end of the cleaning mechanism (4) is fixedly connected to the top end of the collecting mechanism (5), and one side of the purification mechanism (1) is fixedly connected to one side of the collecting mechanism (5).
2. A multifunctional membrane air purification and disinfection equipment according to claim 1, characterized in that: The purification mechanism (1) comprises an equipment housing (101), a ventilation groove (102), a sealing groove (103), a sealing ring (104), a ventilation plate (105), a photocatalyst filter (106), an active carbon filter (107), a dust removal membrane filter (108), an antibacterial filter (109) and a dust filter (110); a ventilation groove (102) is provided on one side of the inner wall of the equipment housing (101); a sealing groove (103) is provided on one side of the inner wall of the equipment housing (101); the inner wall of the sealing groove (103) is fixedly connected to the outer wall of the sealing ring (104); the inner wall of the ventilation groove (102) is fixedly connected to the outer wall of the ventilation plate (105); and the top of the equipment housing (101) is fixedly connected to the inner wall of the dust filter (110).
3. A multifunctional membrane air purification and disinfection equipment according to claim 2, characterized in that: The exhaust mechanism (2) is composed of a fixing frame (201), a supporting frame (202), a fixing groove (203) and an exhaust fan (204), and one side of the fixing frame (201) is fixedly connected to the inner wall of the device housing (101), the inner wall of the fixing frame (201) is respectively fixedly connected to the upper and lower ends of the supporting frame (202), and a fixing groove (203) is provided inside the supporting frame (202), and the inner wall of the fixing groove (203) is fixedly connected to the outer wall of the exhaust fan (204).
4. The multifunctional membrane air purification and disinfection equipment according to claim 3, characterized in that: One side of the positioning frame (301) is fixedly connected to the inner wall of the device housing (101), and a limiting groove (302) is provided on the side of the positioning frame (301) away from the inner wall of the device housing (101), the inner wall of the sealing ring (104) is movably connected to the outer wall of the mounting frame (303), and one side of the mounting frame (303) is fixedly connected to one side of the handle (304), movable grooves (305) are provided inside both sides of the mounting frame (303), and the inner wall of the mounting frame (303) is respectively fixedly connected to the outer walls of the photocatalyst filter (106), the movable carbon filter (107), the dust removal membrane filter (108) and the antibacterial filter (109), and one side of the movable groove (305) is provided with a connection The handle (304) has a port (306), and one end of the threaded rod (307) is provided with a bearing, one end of the threaded rod (307) is rotatably connected to the inner walls of both ends of the handle (304) through the bearing, and the inner wall of the threaded block (308) is threadedly connected to the outer wall of the threaded rod (307), one side of the threaded block (308) is fixedly connected to one end of a movable plate (309), and the outer wall of the movable plate (309) is movably connected to the inner wall of the movable groove (305), one side of the movable plate (309) is fixedly connected to one end of a limit block (310), and the outer wall of the limit block (310) is movably connected to the inner wall of the connecting port (306), and the outer wall of the limit block (310) is movably connected to the inner wall of the limit groove (302).
5. The multifunctional membrane air purification and disinfection equipment according to claim 4, characterized in that: The cleaning mechanism (4) is composed of a cleaning frame (401), a stabilizing groove (402), a cleaning brush (403) and a connecting block (404), and one side of the cleaning frame (401) is fixedly connected to one side of the device housing (101), the cleaning frame (401) is located above the sealing groove (103), and a stabilizing groove (402) is provided at the bottom of the cleaning frame (401), the inner wall of the stabilizing groove (402) is fixedly connected to the outer wall of the cleaning brush (403), and the bottom end of the cleaning frame (401) is fixedly connected to the top end of the connecting block (404).
6. The multifunctional membrane air purification and disinfection equipment according to claim 5, characterized in that: The collecting mechanism (5) comprises a collecting frame (501), a collecting groove (502), a rotating groove (503), a rotating rod (504), a damping ring (505) and a rotating frame (506), wherein the top end of the collecting frame (501) is fixedly connected to the bottom end of the connecting block (404), the collecting frame (501) is provided with a collecting groove (502) inside, and a rotating groove (503) is provided on one side of the collecting groove (502), the inner wall of the rotating groove (503) is rotatably connected to the outer wall of the rotating rod (504), and the outer wall of the rotating rod (504) is fixedly connected to the inner wall of the damping ring (505), one end of the rotating rod (504) is fixedly connected to one side of the rotating frame (506), and the side of the rotating frame (506) away from the rotating rod (504) is fixedly rotatably connected to the side of the inner wall of the collecting groove (502) away from the rotating groove (503) via a rotating shaft.
Citation Information
Patent Citations
Workshop air purifier
CN216703894U