Air conditioner filter screen filtering detection device and method

Abstract

The application discloses an air conditioner filter screen filtering detection device and method, and relates to the technical field of filter screen production detection.The device comprises a detection cabinet, a bearing assembly, a filtering detection assembly, a cleaning assembly and a recovery assembly; the detection cabinet is a cabinet body with a cavity, and a CCD detector is arranged in the cavity; the bearing assembly is used for mounting the air conditioner filter screen and can drive the air conditioner filter screen to ascend and descend in the detection cabinet so as to move between the CCD detector and the filtering detection assembly; the filtering detection assembly is arranged in the detection cabinet, can throw detection powder to the surface of the passing air conditioner filter screen, and the bearing assembly can drive the filter screen to pass through the filtering detection assembly; the cleaning assembly is arranged in the detection cabinet and is used for cleaning the filter screen on the bearing assembly; and the recovery assembly is arranged between the filtering detection assembly and the cleaning assembly and is used for recovering the detection powder.The application can realize the mobile detection of the air conditioner filter screen, can collect the powder through the recovery assembly and clean the filter screen through the cleaning assembly, is convenient for repeated detection of the filter screen after cleaning and drying, and improves the detection convenience and efficiency.

Description

Technical Field

[0001] This invention relates to the field of filter production and testing technology, specifically to an air conditioning filter testing device and method. Background Technology

[0002] Air conditioner filters are crucial components installed inside air conditioners. Their primary function is to filter harmful substances such as dust, bacteria, and viruses from the air, ensuring clean and healthy indoor air. Therefore, the quality of air conditioner filters directly affects indoor air quality and the health and safety of users. The manufacturing process of air conditioner filters includes cutting, sewing, reinforcement, and inspection. The inspection process refers to the testing of the filter after manufacturing, including checking its appearance, dimensions, and filtration effectiveness.

[0003] In related technologies, to facilitate the inspection of the production quality of filter screens, such as appearance and dimensions, patent CN206258397U provides an automatic filter screen inspection device. This device utilizes the high-efficiency detection capability of a CCD lens to replace the previous entirely manual inspection, quickly inspecting the visible appearance and dimensional characteristics of the product and providing results in real time. This greatly improves quality control efficiency while significantly reducing the number of operators required. At the same time, due to the automatic and continuous nature of the inspection, long-term measurement of the product can be achieved, and data analysis can be used to find patterns in quality fluctuations, providing support for further process optimization.

[0004] Although the existing technical solutions mentioned above can achieve automatic inspection of the appearance of the filter by utilizing the efficient detection capability of the CCD lens, the filter still needs to be sampled and inspected after cutting, sewing and strengthening. During the finished product inspection, it is not convenient to transfer the finished filter between the visual inspection and filtration effect inspection stations, and manual operation is still required, making it difficult to automatically inspect the finished air conditioning filter. Summary of the Invention

[0005] To address one of the shortcomings of existing technologies, this invention provides an air conditioner filter detection device, solving the problem of air conditioner filter detection.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an air conditioner filter detection device, comprising:

[0007] The testing cabinet is a cabinet with an internal cavity, and a CCD detector is installed inside the testing cabinet;

[0008] The support assembly is used to install and place the air conditioning filter, and the support assembly can drive the air conditioning filter to rise or fall inside the testing cabinet;

[0009] The filter detection assembly is located inside the detection cabinet. The filter detection assembly and the supporting assembly can drive the air conditioner filter screen through the filter detection assembly. The filter detection assembly can put detection powder onto the surface of the air conditioner filter screen that is passing through it.

[0010] The cleaning unit, located inside the testing cabinet, is used to clean the air conditioning filter screen carried by the carrier component;

[0011] The recovery component is located between the filtration and detection component and the cleaning component. The recovery component is used to recover the powder used for detection.

[0012] Preferably, the CCD detector is located in the upper part of the detection cabinet, and the CCD detector is located above the filter detection component;

[0013] A cleaning box is provided in the lower part of the testing cabinet, and the cleaning components are installed in the cleaning box.

[0014] Preferably, the filter detection component includes:

[0015] The first detection tube is installed inside the detection cabinet, with one end of the first detection tube facing the air conditioning filter on the supporting component.

[0016] The second detection tube is disposed opposite to the first detection tube and can move toward or away from the second detection tube; the first and second detection tubes can clamp the air conditioning filter on the carrier assembly;

[0017] The powder dispensing component can dispense detection powder into the first or second detection tube;

[0018] An exhaust fan, connected to the inside of the first or second detection tube, can form an air passage inside the first or second detection tube to guide the powder from the powder dispersing component to the air conditioning filter.

[0019] Preferably, both the first detection tube and the second detection tube are movably disposed inside the detection cabinet, and the first detection tube and the second detection tube can be close to or far from each other;

[0020] The ends of the first and second detection tubes facing the support assembly are contoured structures corresponding to both sides of the air conditioning filter; when the first and second detection tubes are attached to the air conditioning filter on the support assembly, a sealed air duct can be formed.

[0021] Preferably, the powder dispersing component and the first detection tube are internally connected, and the blower and the second detection tube are internally connected;

[0022] The powder dispersing component is disposed on the upper side of the first detection tube, and the first detection tube has a discharge port at the output end of the powder dispersing component; a grid plate is fixedly disposed on the side of the first detection tube away from the bearing component.

[0023] The filtering detection component also includes:

[0024] The opening and closing drive assembly is provided with at least one set corresponding to the first detection tube and the second detection tube respectively, and the opening and closing drive assembly drives the first detection tube and the second detection tube to move closer or further away from each other.

[0025] Preferably, a current detector is fixedly installed on the outside of the induced draft fan.

[0026] Preferably, the powder assembly includes:

[0027] A powder container is located on the upper side of the first detection tube;

[0028] A rotating drum is disposed inside the powder container and is rotatably connected to the powder container;

[0029] At least one powder outlet is provided on the wall of the rotating drum;

[0030] The powder inlet is located at one axial end of the rotating drum.

[0031] The powder adding tube is connected to the powder inlet.

[0032] The motor is linked to the rotating drum and can drive the rotating drum to rotate.

[0033] Preferably, the recycling component includes:

[0034] The first recovery tube is disposed below the first detection tube, and the upper end of the first recovery tube is connected to the inside of the first detection tube.

[0035] The second recovery tube is located below the second detection tube, and the second recovery tube and the second detection tube are internally connected.

[0036] The input pipe is connected to the first recycling pipe; and the input pipe is also connected to the blower.

[0037] The output pipe is connected to the second recovery pipe; the input pipe and the output pipe are slidably connected to the cabinet wall of the detection cabinet respectively;

[0038] The collection box is connected to the bottom of the first recycling tube;

[0039] The first and second recovery tubes are oscillable.

[0040] Preferably, the carrier component includes:

[0041] The support frame is used to support the air conditioner filter.

[0042] The mounting plate is fixedly installed on one side of the support frame;

[0043] The U-shaped frame is slidably connected to the hanging plate;

[0044] A vibration assembly, located between the hanging plate and the U-shaped frame, can drive the load-bearing frame to vibrate.

[0045] Preferably, the testing cabinet further includes:

[0046] A lifting assembly is installed on the top of the testing cabinet. The lifting assembly is a telescopic rod, and its movable end is connected to the U-shaped frame.

[0047] Both the first and second detection tubes have mating ports at their ports near the support frame, and the mating ports are distributed on the upper and lower sides of the ports of the first and second detection tubes.

[0048] The bearing frame has protrusions fixedly installed on both sides of the corresponding mating opening. The protrusions are semi-circular in shape and correspond to the lifting components.

[0049] Preferably, the clear component includes:

[0050] Two side panels are installed inside the cleaning tank;

[0051] A brush plate is provided for each of the side plates, and the brush plate is located on one side opposite to the two side plates; the brush plate and the side plate are horizontally slidably connected; and the two brush plates are slidably connected by a sliding shaft;

[0052] A U-shaped component is disposed on the top of the brush plate; the brush plate is linked to the vibration assembly through the U-shaped component and can move horizontally reciprocating under the drive of the vibration assembly.

[0053] A detection method, applied to the aforementioned air conditioner filter detection device, includes the following steps:

[0054] S1. Loading: Use the lifting push rod to drive the bearing assembly to the top inside the testing cabinet, and install the air conditioner filter to be tested on the bearing assembly in preparation for testing;

[0055] S2. Visual inspection: The lifting push rod drives the supporting component and the air conditioning filter it carries to move downward. During the movement, the CCD detector inside the inspection cabinet is used to inspect the appearance and size of the air conditioning filter.

[0056] S3. Filter testing: As the carrier component moves the air conditioner filter through the CCD detector, it continues to move to the testing station of the filter testing component. The first and second testing tubes are pressed and sealed on both sides of the carrier component, so that the air conditioner filter is in the testing duct for filtration performance testing.

[0057] S4. Powder Recovery: After the filtration performance test, the carrier component continues to move downward to the station where the recovery component is located. By connecting the first recovery pipe and the second recovery pipe to the outside of the carrier component and the air conditioning filter, the carrier component drives the air conditioning filter to shake and automatically clean the powder accumulated in the filter. The cleaned powder enters the inside of the collection box for collection under the guidance of the lower slope and the upper slope.

[0058] S5. Cleaning the air conditioning filter: After most of the powder is removed, the carrier component continues to drive the air conditioning filter to be inside the cleaning box. Then, the two side plates inside the cleaning box are driven to move closer to the carrier component, so that the side plates drive the outer brush plate to move closer to the outside of the air conditioning filter. Then, the carrier component drives the air conditioning filter to shake, so that the air conditioning filter and the brush plate move relative to each other to achieve cleaning.

[0059] S6. Drying the air conditioning filter: The cleaned air conditioning filter is lifted to the top of the cleaning box by the support component, and then shaken to drain water. After draining water, it is moved between the first and second recovery pipes and dried by blowing air through the input pipe on the outside of the first recovery pipe.

[0060] S7. Reset and repeat test: The dried air conditioning filter moves to the top of the test cabinet under the drive of the bearing component, and then repeats steps S2 to S6 for cyclic testing.

[0061] Compared with the prior art, this application has the following advantages: The present application is provided with a support component as a support structure. By installing the air conditioner filter on the support component, it is easy to lift and move, so as to move the air conditioner filter between the CCD detector and the filter detection component. In order to facilitate repeated testing, a recycling component and a cleaning component are set inside the detection cabinet to collect the powder filtered by the air conditioner filter and clean the air conditioner filter, so as to automatically clean and dry the air conditioner filter and conduct repeated testing. Attached Figure Description

[0062] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of this application;

[0063] Figure 2 This is a schematic diagram of the internal structure of an embodiment of this application;

[0064] Figure 3 This is a schematic diagram of the assembly structure of the filter detection component and the cleaning component in an embodiment of this application;

[0065] Figure 4 This is a schematic diagram of the structure of the filtering and detection component in an embodiment of this application;

[0066] Figure 5 This is a schematic diagram of the structure of the first detection tube in the filter detection assembly of this application embodiment;

[0067] Figure 6 This is a three-dimensional structural diagram of the carrier component according to an embodiment of this application;

[0068] Figure 7 This is a schematic diagram of the main structure of the carrier component in an embodiment of this application;

[0069] Figure 8 This is an exploded structural diagram of the load-bearing component according to an embodiment of this application;

[0070] Figure 9 This is a three-dimensional structural diagram of the recycling component according to an embodiment of this application;

[0071] Figure 10 This is a cross-sectional view of the recycling component according to an embodiment of this application;

[0072] Figure 11 This is a schematic diagram of the cleaning component in an embodiment of this application.

[0073] In the picture:

[0074] 100. Air conditioner filter;

[0075] 1. Inspection cabinet; 11. CCD detector; 12. Cleaning box; 13. Lifting push rod; 14. Drive rod; 15. Loading window; 16. Inspection window; 17. Cabinet door A; 18. Cabinet door B;

[0076] 2. Filter detection assembly; 21. First detection tube; 22. Second detection tube; 23. Grid plate; 24. Feed port; 25. Powder dispersing assembly; 251. Powder dispersing tank; 252. Rotary drum; 253. Powder outlet; 254. Feed inlet; 255. Feeding pipe; 256. Motor; 26. Exhaust fan; 27. Current detector; 28. Opening and closing drive assembly; 29. ​​Fitting port;

[0077] 3. Load-bearing components; 31. Load-bearing frame; 32. U-shaped frame; 33. Hanging plate; 34. Vertical plate; 35. Cam; 351. Roller; 36. Sliding hole A; 37. Sliding rod; 38. Spring A; 39. Motor; 310. Rotary wheel; 311. Eccentric shaft; 312. Mounting frame; 313. Socket; 314. Sliding hole B; 315. Sliding pin; 316. Pressure ring; 317. Spring B; 318. Outer ring; 319. Protrusion;

[0078] 4. Recycling Components; 41. First Recycling Pipe; 42. Second Recycling Pipe; 43. Input Pipe; 44. Output Pipe; 45. Lower Inclined Surface; 46. Upper Inclined Surface; 47. Recycling Pipe; 48. Collection Box; 49. Notch A; 410. Notch B; 411. Slide A; 412. Slide B; 413. Slide Table; 414. Spring C; 415. Connecting Plate;

[0079] 5. Cleaning components; 51. Side plate; 52. Brush plate; 53. Sliding shaft; 54. U-shaped part; 55. Connecting bracket A; 56. Connecting bracket B; 57. Sliding sleeve; 58. Sliding rail. Detailed Implementation

[0080] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0081] Please see Figures 1-11 This application provides the following technical solutions:

[0082] An air conditioner filter testing device includes a testing cabinet 1, a filter testing component 2, a support component 3, a recovery component 4, and a cleaning component 5. A CCD detector 11 is installed inside the testing cabinet 1, and a cleaning box 12 is fixedly installed at the bottom of the testing cabinet 1. The filter testing component 2 is located inside the testing cabinet 1, below the CCD detector 11. The support component 3 is used to mount and hold the air conditioner filter 100, and moves up and down inside the testing cabinet 1 under external force. The recovery component 4 is located at the bottom of the filter testing component 2 and is used to collect powder shaken off by the support component 3. The cleaning component 5 is located inside the cleaning box 12 and is used to clean the air conditioner filter 100 carried by the support component 3. The filter testing component 2 includes components that are slidably mounted on both sides of the testing cabinet 1. The first detection tube 21 and the second detection tube 22 are located on both sides of the support component 3 and are sealed to both sides of the support component 3 by external force. A powder dispersing component 25 is fixedly installed on the top of the first detection tube 21 for dispensing powder into the first detection tube 21. A blower 26 is fixedly installed on the side of the second detection tube 22 away from the support component 3 for attracting the powder inside the first detection tube 21 to the outside of the air conditioner filter 100. Specifically, a loading window 15 and a maintenance window 16 are opened on one side of the detection cabinet 1. The loading window 15 is set above the CCD detector 11. Cabinet doors A17 and B18 are respectively set on the outside of the detection cabinet 1 corresponding to the loading window 15 and the maintenance window 16.

[0083] During testing, the outer door A17 of the testing cabinet 1 is opened, and the air conditioning filter 100 to be tested is installed on the support assembly 3 inside the testing cabinet 1, so that the support assembly 3 supports the air conditioning filter 100. After closing the door A17, the support assembly 3 is driven to move downward inside the testing cabinet 1, so that the support assembly 3 carries the air conditioning filter 100 through the CCD detector 11 inside the testing cabinet 1 for visual inspection. After inspection, the air conditioning filter 100 is then moved downward to the inspection station of the filter inspection assembly 2. Then, the first inspection tube 21 and the second inspection tube 22 are respectively sealed and fitted on both sides of the support assembly 3, so that the support assembly 3 is located in the inspection channel formed by the first inspection tube 21 and the second inspection tube 22, so as to facilitate the movement of the air conditioning filter 100 between the CCD detector 11 and the filter inspection assembly 2. In actual testing, in order to improve testing efficiency, To reduce the detection cycle, powder is added to the first detection tube 21 via the powder dispersing component 25 to simulate dust in the air. To prevent the powder adhering to the outside of the air conditioning filter 100 after detection from polluting the air and to achieve recycling, the carrying component 3 is driven downward to the position of the recycling component 4. The carrying component 3 causes the air conditioning filter 100 to vibrate, shaking off the powder on the outside, which is then collected by the recycling component 4 for reuse. In order to repeatedly detect the air conditioning filter 100 to obtain more detailed filtration performance, a cleaning box 12 is set at the bottom of the detection cabinet 1. The cleaning component 5 inside the cleaning box 12 can automatically clean the air conditioning filter 100. After cleaning, the air conditioning filter 100 can move upward again to return to the original point for detection under the drive of the carrying component 3, so that the air conditioning filter 100 can be automatically cyclically detected, making the detection operation more convenient.

[0084] A grid plate 23 is fixedly installed on the side of the first detection tube 21 away from the bearing component 3. A discharge port 24 is opened on the top of the first detection tube 21 corresponding to the output end of the powder dispersing component 25. A current detector 27 is fixedly installed on the outside of the blower 26. An opening and closing drive component 28 is provided on the outside of both the first detection tube 21 and the second detection tube 22. The opening and closing drive components 28 are both fixedly installed on the outside of the detection cabinet 1.

[0085] During filtration performance testing, the opening and closing drive assembly 28 drives the first detection tube 21 and the second detection tube 22 to seal against both sides of the support assembly 3, so that the air conditioning filter 100 automatically engages with the detection channel. Then, the induced draft fan 26 on one side of the second detection tube 22 draws air from inside the first detection tube 21 into the second detection tube 22. As the powder dispersing assembly 25 adds powder into the first detection tube 21, the powder gradually adheres to the outside of the air conditioning filter 100 under the action of the induced draft fan 26. As the amount of powder filtered by the air conditioning filter 100 gradually increases, the pressure difference between the two sides of the air conditioning filter 100 gradually increases. Therefore, the pressure difference between the two sides of the air conditioning filter 100 can be detected by measuring the pressure difference. The air conditioner filter 100 has a dust holding capacity. As the pressure difference gradually increases, the load on the induced draft fan 26 during air intake also gradually increases, causing the current of the induced draft fan 26 to change. The filtration performance of the air conditioner filter 100 can be measured based on the relationship between the pressure difference on both sides of the air conditioner filter 100 and the current change of the induced draft fan 26. Furthermore, the filtration performance of the air conditioner filter 100 can also be detected by detecting the current change of the induced draft fan 26 through the current detector 27. The relationship between the current signal detected by the current detector 27 and the pressure difference on both sides of the air conditioner filter 100 is existing technology (e.g., the filter assembly and filter clogging detection method disclosed in patent document CN111111342B), and will not be elaborated here.

[0086] The powder assembly 25 includes a powder container 251 fixedly mounted on the top of the first detection tube 21. Inside the powder container 251, a rotating drum 252 for holding powder is rotatably mounted. A powder outlet 253 is opened on the circumference of the rotating drum 252. A powder inlet 254 is fixedly mounted on one end of the rotating drum 252. The powder inlet 254 is rotatably connected to a feeding pipe 255 at one end of the powder container 251. A motor 256 for driving the rotating drum 252 is fixedly mounted on the other end of the powder container 251.

[0087] When powder is added into the first detection tube 21, the rotating drum 252 is driven by the motor 256 to rotate inside the powder tank 251, so that the powder inside the rotating drum 252 is in motion, preventing the powder from being difficult to discharge under static compression. When the powder outlet 253 on the outside of the rotating drum 252 rotates to the bottom and is aligned with the output end of the powder tank 251, the powder inside the rotating drum 252 rolls to the bottom and enters the discharge port 24 through the powder outlet 253. Then, the powder is put into the first detection tube 21 through the discharge port 24 to simulate the dust environment in the air. A feeding pipe 255 is set at one end of the powder tank 251 to facilitate the replenishment of powder into the rotating drum 252. With the help of the recycling component 4, the powder can be collected, realizing the recycling effect of the powder.

[0088] The recycling component 4 includes a first recycling pipe 41 and a second recycling pipe 42, which are respectively fixedly disposed at the bottom of the first detection pipe 21 and the second detection pipe 22. An input pipe 43 is fixedly disposed on the outside of the first recycling pipe 41, and an output pipe 44 is fixedly disposed on the outside of the second recycling pipe 42. The other ends of the input pipe 43 and the output pipe 44 are slidably disposed on the outside of the detection cabinet 1. The bottom of the first recycling pipe 41 and the second recycling pipe 42 are respectively provided with a lower inclined surface 45 and an upper inclined surface 46. A recycling pipe 47 is fixedly disposed on the outside of the first recycling pipe 41 corresponding to the lower inclined surface 45. A collection box 48 is fixedly disposed on the other end of the recycling pipe 47. The collection box 48 is located on the outside of the detection cabinet 1. When the bearing component 3 is located between the first recycling pipe 41 and the second recycling pipe 42, it is driven by an external force to trigger vibration. A blower is connected to the other end of the input pipe 43.

[0089] After the carrier component 3 moves the air conditioning filter 100 to the station where the recycling component 4 is located, the first detection tube 21 and the second detection tube 22 drive the first recycling tube 41 and the second recycling tube 42 to come close together, so as to isolate the air conditioning filter 100 between the first recycling tube 41 and the second recycling tube 42. Then, the carrier component 3 drives the air conditioning filter 100 to shake, and the shaken powder will eventually fall to the bottom of the first recycling tube 41 and the second recycling tube 42. It is guided into the interior of the recycling tube 47 through the lower slope 45 and the upper slope 46 at the bottom of the first recycling tube 41 and the second recycling tube 42, and finally collected through the collection box 48 at the other end of the recycling tube 47. In order to make the powder recycling more complete, an external blower can blow air into the input tube 43, so that the airflow output by the input tube 43 blows the powder on the top of the lower slope 45 and the upper slope 46 into the collection box 48. The input tube 43 can also blow hot air to dry the air conditioning filter 100 after cleaning.

[0090] To achieve the shaking of the air conditioner filter 100, the support assembly 3 includes a support frame 31 for supporting the air conditioner filter 100 and a U-shaped frame 32 for supporting the support frame 31. The U-shaped frame 32 is slidably disposed on the outside of the support frame 31. A hanging plate 33 is fixedly disposed on the top of the support frame 31. A vertical plate 34 is fixedly disposed on one side of the top of the U-shaped frame 32. A cam 35 is rotatably disposed on the outside of the vertical plate 34. The cam 35 is located between the support frame 31 and the hanging plate 33. The cam 35 is driven to rotate by an external force. A roller 351 is rotatably disposed on the protruding end of the cam 35 to push the hanging plate 33 upward. Specifically, to make the shaking of the support frame 31 more powerful, a sliding hole A36 is opened at the top of the U-shaped frame 32. A sliding rod 37 is slidably disposed inside the sliding hole A36. The sliding rod 37 is slidably disposed on the top of the support frame 31. A spring A38 is provided on the outer side of the support frame 31 and the U-shaped frame 32. In order to facilitate the installation of the air conditioner filter 100 and the support frame 31, a mounting frame 312 is fixedly provided on the outer side of the support frame 31. The mounting frame 312 has an insertion port 313 for inserting the air conditioner filter 100 on the side near the loading window 15. Sliding holes B314 are provided at the four corners of the side of the mounting frame 312 away from the support frame 31. Sliding pins 315 are slidably provided on the inner side of each sliding hole B314. A pressure ring 316 for pressing the frame of the air conditioner filter 100 is fixedly provided at one end of the sliding pin 315 near the air conditioner filter 100. An outer ring 318 is fixedly provided at the other end of the sliding pin 315 on the outer side of the mounting frame 312. A spring B317 is provided on the outer side of the sliding pin 315 between the pressure ring 316 and the mounting frame 312.

[0091] When it is necessary to shake the air conditioning filter 100, the cam 35 on one side of the drive plate 34 is rotated, causing the cam 35 to drive the outer roller 351 to revolve between the hanging plate 33 and the support frame 31. When the roller 351 contacts the hanging plate 33, it reduces frictional resistance by rotating itself, thereby pushing the hanging plate 33 to move the support frame 31 upward. When the roller 351 leaves the hanging plate 33, the support frame 31 falls to the bottom of the U-shaped frame 32 by its own weight, and vibrates by colliding with the U-shaped frame 32. In order to make the vibration effect of the air conditioning filter 100 better, when the support frame 31 is lifted, the slide rod 37 is pushed to move upward, and the spring A38 is squeezed at the same time. When the support frame 31 moves downward automatically, the impact force between the support frame 31 and the U-shaped frame 32 is greater under the elastic force applied by the spring A38, which improves the dust shaking effect of the air conditioning filter 100.

[0092] A lifting push rod 13 for driving the U-shaped frame 32 to rise and fall is fixedly installed on the top of the testing cabinet 1. A driving rod 14 is fixedly installed at the driving end of the lifting push rod 13, and the other end of the driving rod 14 is fixedly installed on the top of the U-shaped frame 32. The first testing tube 21 and the second testing tube 22 are both provided with mating ports 29 on the side near the support frame 31. The mating ports 29 are distributed at the top and bottom of the first testing tube 21 and the second testing tube 22. Protrusions 319 are fixedly installed on both sides of the support frame 31 corresponding to the mating ports 29. The protrusions 319 are semi-circular in shape and have the same diameter as the driving rod 14.

[0093] When the carrier assembly 3 drives the air conditioning filter 100 to shake off powder between the first recovery pipe 41 and the second recovery pipe 42, in order to prevent the powder from spreading upward, when the carrier frame 31 drives the air conditioning filter 100 to be positioned between the first recovery pipe 41 and the second recovery pipe 42, the bottoms of the first recovery pipe 41 and the second recovery pipe 42 are aligned and fitted together, while the first detection pipe 21 and the second detection pipe 22 located at the top of the first recovery pipe 41 and the second recovery pipe 42 move closer to the outside of the drive rod 14 until they are in close contact and sealed with the drive rod 14, so as to ensure the sealing of the powder cleaning space. At the same time, in order to ensure the sealing of the bottom and top of the first detection pipe 21 and the second detection pipe 22 with the carrier frame 31, protrusions 319 are fixedly provided on both sides of the carrier frame 31 corresponding to the mating ports 29, so that the first detection pipe 21 and the second detection pipe 22 fit with the carrier frame 31. The mating ports 29 and the protrusions 319 fit together to ensure the sealing of the first detection pipe 21 and the second detection pipe 22 with the carrier frame 31.

[0094] The cleaning assembly 5 includes two side plates 51 disposed inside the cleaning tank 12. Each of the two side plates 51 is provided with a brush plate 52 on the side that is close to each other. A sliding shaft 53 is fixedly disposed at the bottom of one of the brush plates 52. The sliding shaft 53 is slidably disposed with the other brush plate 52. The two side plates 51 are fixedly disposed at the bottom of the first recycling pipe 41 and the second recycling pipe 42 respectively by connecting frame A55 and connecting frame B56.

[0095] When the carrier assembly 3 moves the air conditioning filter 100 into the cleaning box 12, the first detection tube 21 and the second detection tube 22 move closer together, which in turn moves the connecting frame A55 and the connecting frame B56 at the bottom of the first recovery tube 41 and the second recovery tube 42 closer together. The connecting frame A55 and the connecting frame B56 then move the side plates 51 on both sides of the carrier frame 31 closer together. After the first detection tube 21 and the second detection tube 22 are engaged with the drive rod 14 again, the side plates 51 move the brush plates 52 to engage with both sides of the air conditioning filter 100. Then, the carrier assembly 3 drives the air conditioning filter 100 to shake vertically again, so that the air conditioning filter 100 and the brush plates 52 on both sides move relative to each other to achieve the washing function and ensure that the powder is thoroughly cleaned. A brush is provided on the side of the air conditioning filter 100 that the brush plate 52 is close to. The brush has a certain pressure on the air conditioning filter 100 and the area of ​​the brush covers the area of ​​the air conditioning filter 100.

[0096] Each brush plate 52 is fixedly provided with a slide rail 58 on the side near the side plate 51. A sliding sleeve 57 is slidably provided on the outside of the slide rail 58. The sliding sleeve 57 is horizontally fixed to the side plate 51. A U-shaped part 54 is fixedly provided on the top of one of the brush plates 52. A motor 39 for driving the cam 35 is fixedly provided on the outside of the vertical plate 34. A wheel 310 is also provided at the output end of the motor 39. An eccentric shaft 311 is fixedly provided on the outside of the wheel 310. The eccentric shaft 311 is located directly above the U-shaped part 54 by its own weight. The cam 35 and the wheel 310 are respectively connected to the driving end of the motor 39 through a one-way bearing.

[0097] During actual cleaning, because the air conditioner filter 100 has a flexible frame on its outer side, several intersecting cleaning gaps are formed at the connection between the filter and the frame. To achieve thorough cleaning, when cleaning vertically, the drive end of the motor 39 drives the cam 35 to rotate independently via a one-way bearing, causing the cam 35 to drive the support frame 31 to vibrate vertically. When cleaning horizontally, the motor 39 reverses its direction, causing the drive end to flip. The drive end then drives the rotor 310 to rotate independently via a one-way bearing, causing the rotor 310 to vibrate vertically. The eccentric shaft 311 rotates inside the U-shaped part 54. During the rotation, the eccentric shaft 311 drives the U-shaped part 54 to reciprocate, which in turn causes the U-shaped part 54 to drive one of the brush plates 52 to slide along the sliding sleeve 57. At the same time, the brush plate 52 is carried by the sliding shaft 53 to move synchronously with the other brush plate 52, so as to achieve synchronous cleaning of both sides of the air conditioner filter 100. The eccentric shaft 311 is always at the bottom due to its own weight. When the support frame 31 moves downward, the eccentric shaft 311 automatically falls into the inside of the U-shaped part 54.

[0098] Notch A49 and notch B410 are respectively provided on the side of the lower inclined surface 45 and the upper inclined surface 46 that are close to each other. Notch A49 and notch B410 are both semi-circular shapes that cooperate with the outer side of the drive rod 14. Slide plates A411 and B412 are slidably arranged on the top of the lower inclined surface 45 and the upper inclined surface 46, respectively. A slide table 413 is fixedly arranged at the bottom of the lower inclined surface 45. The slide table 413 is slidably arranged on one side of the detection cabinet 1. A spring C414 is arranged inside the slide table 413. A connecting plate 415 is fixedly arranged at the bottom of the slide plate A411. The spring C414 is located on the side of the connecting plate 415 away from the slide plate B412.

[0099] When the first recovery pipe 41 and the second recovery pipe 42 drive the two brush plates 52 to approach the air conditioner filter 100, in order to prevent the drive rod 14 from interfering with the first recovery pipe 41 and the second recovery pipe 42, notches A49 and B410 are provided at the bottom of the lower inclined surface 45 and the upper inclined surface 46 corresponding to the drive rod 14. This allows the first recovery pipe 41 and the second recovery pipe 42 to fit on the outside of the drive rod 14 through notches A49 and B410. Furthermore, to ensure the sealing of the lower inclined surface 45 and the upper inclined surface 46 during powder recovery, [further details are needed]. Do not place slide plates A411 and B412 on the lower slope 45 and upper slope 46. Slide plate A411 slides upward under the elastic force of spring C414 to block the notch A49, and slide plate B412 slides down under its own weight to block the notch B410, so as to ensure the sealing after the lower slope 45 and upper slope 46 are aligned and fitted. When the lower slope 45 and upper slope 46 move closer to the outside of the drive rod 14, slide plates A411 and B412 will be squeezed by the drive rod 14 and automatically slide away to the sides to adapt to different working conditions.

[0100] The present invention also provides a detection method for the above-mentioned air conditioner filter detection device, comprising the following steps:

[0101] First, open the cabinet door A17 on the outside of the testing cabinet 1. At this time, the lifting push rod 13 drives the bearing assembly 3 to be located at the top inside the testing cabinet 1. Insert one side of the air conditioner filter 100 into the mounting frame 312 through the insertion port 313. During the insertion process, pull the outer ring 318 outward to make the pressure ring 316 move away from the bearing frame 31, so as to facilitate the smooth insertion of the air conditioner filter 100. Then, release the outer ring 318 and use the pressure of the spring B317 to drive the pressure ring 316 to press the edge of the air conditioner filter 100, so as to install the air conditioner filter 100 on the bearing assembly 3 for testing.

[0102] Then, the lifting push rod 13 drives the bearing assembly 3 and the air conditioning filter 100 it carries to move downwards. During the movement, the CCD detector 11 inside the inspection cabinet 1 performs appearance and size inspections on the air conditioning filter 100. As the bearing assembly 3 drives the air conditioning filter 100 through the CCD detector 11, it continues to move to the inspection station of the filter inspection assembly 2. At this time, the opening and closing drive assembly 28 drives the first inspection tube 21 and the second inspection tube 22 to seal and cooperate on both sides of the bearing assembly 3, so that the air conditioning filter 100 can automatically cooperate with the inspection channel. Then, the exhaust fan 26 on one side of the second inspection tube 22 is started to draw the air inside the first inspection tube 21 into the second inspection tube 22. At the same time, the motor 256 is started to drive the rotating drum 252 to rotate inside the powder tank 251. When the powder outlet 253 on the outside of the rotating drum 252 rotates to the bottom and aligns with the output end of the powder tank 251, the rotating drum 252... When the powder inside 52 rolls to the bottom, it can enter the inside of the discharge port 24 through the powder outlet 253, and then the powder is put into the inside of the first detection tube 21 through the discharge port 24 to simulate the dust environment in the air. Under the action of the induced draft fan 26, the powder gradually adheres to the outside of the air conditioning filter 100. As the amount of powder filtered by the air conditioning filter 100 gradually increases, the pressure difference between the two sides of the air conditioning filter 100 will gradually increase. Therefore, the dust holding capacity of the air conditioning filter 100 can be detected by detecting the pressure on both sides of the air conditioning filter 100. As the pressure difference gradually increases, the load of the induced draft fan 26 during air intake also gradually increases, causing the current of the induced draft fan 26 to change. The filtration performance of the air conditioning filter 100 can be measured according to the relationship between the pressure difference between the two sides of the air conditioning filter 100 and the current change of the induced draft fan 26. Furthermore, the filtration performance of the air conditioning filter 100 can also be detected by detecting the current change of the induced draft fan 26 through the current detector 27.

[0103] After the filtration performance test, the drive assembly 3 continues to move downwards to the station where the recovery assembly 4 is located. The first recovery pipe 41 and the second recovery pipe 42 are placed together on the outside of the drive assembly 3 and the air conditioning filter 100 for isolation. At this time, the bottoms of the first recovery pipe 41 and the second recovery pipe 42 are aligned and fitted together, while the first detection pipe 21 and the second detection pipe 22 located at the top of the first recovery pipe 41 and the second recovery pipe 42 move closer to the outside of the drive rod 14 until they are in contact and sealed together to ensure the airtightness of the powder cleaning space. Simultaneously, to ensure the first detection... The sealing between the bottom and top of the measuring tube 21 and the second measuring tube 22 and the support frame 31 is ensured by fixing protrusions 319 on both sides of the support frame 31 corresponding to the mating ports 29, so that the first measuring tube 21 and the second measuring tube 22 can mate with the support frame 31. The mating ports 29 and the protrusions 319 cooperate with each other to ensure the sealing between the first measuring tube 21 and the second measuring tube 22 and the support frame 31. When the motor 39 runs, it drives the cam 35 on one side of the vertical plate 34 to rotate, so that the cam 35 drives the outer roller 351 to revolve between the hanging plate 33 and the support frame 31. When roller 351 contacts the mounting plate 33, it reduces frictional resistance by rotating, thereby pushing the mounting plate 33 to move the support frame 31 upward. After roller 351 disengages from the mounting plate 33, the support frame 31 falls to the bottom of the U-shaped frame 32 under its own weight, vibrating by colliding with the U-shaped frame 32. To improve the vibration effect of the air conditioning filter 100, when the support frame 31 is lifted, it pushes the slide rod 37 upward and compresses the spring A38. When the support frame 31 moves downward automatically, the elastic force applied by the spring A38 causes the support frame 31 to collide with the U-shaped frame 32. The impact force is greater, which improves the dust removal effect of the air conditioner filter 100. The dust will eventually fall to the bottom of the first recovery pipe 41 and the second recovery pipe 42. It will be guided into the interior of the recovery pipe 47 through the lower slope 45 and the upper slope 46 at the bottom of the first recovery pipe 41 and the second recovery pipe 42. Finally, it will be collected by the collection box 48 at the other end of the recovery pipe 47. In order to make the dust removal more complete, an external blower can blow air into the input pipe 43, so that the airflow output from the input pipe 43 blows the dust on the top of the lower slope 45 and the upper slope 46 into the collection box 48.

[0104] After most of the powder is removed, the carrier assembly 3 continues to drive the air conditioning filter 100 to be located inside the cleaning box 12. Then, the first detection tube 21 and the second detection tube 22 move closer to each other, thereby driving the connecting brackets A55 and B56 at the bottom of the first recovery tube 41 and the second recovery tube 42 to move closer to each other. This causes the connecting brackets A55 and B56 to drive the side plates 51 located on both sides of the carrier frame 31 to move closer to each other. This continues until the first detection tube 21 and the second detection tube 22 are engaged with the drive rod 14 again. The side plates 51 then drive the brush plates 52 to engage with both sides of the air conditioning filter 100. Then, the carrier assembly 3 drives the air conditioning filter 100 to shake vertically again, causing the air conditioning filter 100 to engage with the brush plates 52 on both sides. The relative movement between the two parts enables vertical cleaning. During horizontal cleaning, the motor 39 reverses its direction, causing the drive end to flip. The drive end drives the rotating wheel 310 to rotate independently via a one-way bearing. This causes the rotating wheel 310 to drive the eccentric shaft 311 to rotate inside the U-shaped part 54. During rotation, the eccentric shaft 311 drives the U-shaped part 54 to reciprocate, which in turn causes one of the brush plates 52 to slide along the sliding sleeve 57. At the same time, the brush plate 52 is carried by the sliding shaft 53 to move synchronously with the other brush plate 52, thus achieving simultaneous cleaning of both sides of the air conditioning filter 100. The eccentric shaft 311 is always at the bottom due to its own weight. When the support frame 31 moves downward, the eccentric shaft 311 automatically falls into the inside of the U-shaped part 54.

[0105] After cleaning, the air conditioning filter 100 is lifted to the top of the cleaning box 12 by the support component 3, and then shaken to drain water. After draining, it is moved between the first recovery pipe 41 and the second recovery pipe 42 and dried by air blowing through the input pipe 43 on the outside of the first recovery pipe 41. Then, the support component 3 is driven by the lifting push rod 13 to be lifted to the top for repeated testing, making the testing of the air conditioning filter 100 more efficient and convenient.

[0106] In the description of this application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0107] In this application and its embodiments, unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0108] In this application and its embodiments, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0109] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0110] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0111] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. An air conditioner filter detection device, characterized in that, include: The testing cabinet is a cabinet with an internal cavity, and a CCD detector is installed inside the testing cabinet; The support assembly is used to install and place the air conditioning filter, and the support assembly can drive the air conditioning filter to rise or fall inside the testing cabinet; The filter detection assembly is located inside the detection cabinet. The supporting assembly can drive the air conditioner filter screen through the filter detection assembly. The filter detection assembly can put detection powder onto the surface of the air conditioner filter screen that is passing through it. The cleaning unit, located inside the testing cabinet, is used to clean the air conditioning filter screen carried by the carrier component; A recovery component is located between the filtration and detection component and the cleaning component. The recovery component is used to recover the powder used for detection. The filtering detection component includes: The first detection tube is installed inside the detection cabinet, with one end of the first detection tube facing the air conditioning filter on the supporting component. The second detection tube is disposed opposite to the first detection tube and can move toward or away from the second detection tube; the first and second detection tubes can clamp the air conditioning filter on the carrier assembly; The powder dispensing component can dispense detection powder into the first or second detection tube; An exhaust fan, connected to the inside of the first or second detection tube, can form an air passage inside the first or second detection tube to guide the powder from the powder dispersing component to the air conditioning filter. Both the first and second detection tubes are movably disposed inside the detection cabinet, and the first and second detection tubes can be close to or far from each other. The ends of the first and second detection tubes facing the support assembly are contoured structures corresponding to both sides of the air conditioning filter; when the first and second detection tubes are attached to the air conditioning filter on the support assembly, a sealed air duct can be formed. The powder dispersing component is internally connected to the first detection tube, and the blower is internally connected to the second detection tube; The powder dispersing component is disposed on the upper side of the first detection tube, and the first detection tube has a discharge port at the output end of the powder dispersing component; a grid plate is fixedly disposed on the side of the first detection tube away from the bearing component.

2. The air conditioner filter detection device as described in claim 1, characterized in that, The filtering detection component also includes: The opening and closing drive assembly is provided with at least one set corresponding to the first detection tube and the second detection tube respectively, and the opening and closing drive assembly drives the first detection tube and the second detection tube to move closer or further away from each other.

3. The air conditioner filter detection device as described in claim 2, characterized in that, The powder dispersing component includes: A powder container is located on the upper side of the first detection tube; A rotating drum is disposed inside the powder container and is rotatably connected to the powder container; At least one powder outlet is provided on the wall of the rotating drum; The powder inlet is located at one axial end of the rotating drum. The powder adding tube is connected to the powder inlet.

4. The air conditioner filter detection device as described in claim 3, characterized in that, The recycling component includes: The first recovery tube is disposed below the first detection tube, and the upper end of the first recovery tube is connected to the inside of the first detection tube. The second recovery tube is located below the second detection tube, and the second recovery tube and the second detection tube are internally connected. The input pipe is connected to the first recycling pipe; and the input pipe is also connected to the blower. The output tube is connected to the second recovery tube; The collection box is connected to the bottom of the first recycling tube; The first and second recovery tubes are oscillable.

5. The air conditioner filter detection device as described in claim 4, characterized in that, The carrier component includes: The support frame is used to support the air conditioner filter. The mounting plate is fixedly installed on one side of the support frame; The U-shaped frame is slidably connected to the hanging plate; A vibration assembly, located between the hanging plate and the U-shaped frame, can drive the load-bearing frame to vibrate.

6. The air conditioner filter detection device as described in claim 5, characterized in that, The testing cabinet also includes: A lifting assembly is installed on the top of the testing cabinet. The lifting assembly is a telescopic rod, and its movable end is connected to the U-shaped frame. Both the first and second detection tubes have mating ports at their ports near the support frame, and the mating ports are distributed on the upper and lower sides of the ports of the first and second detection tubes. The bearing frame has protrusions fixedly installed on both sides of the corresponding mating opening. The protrusions are semi-circular in shape and correspond to the lifting components.

7. The air conditioner filter detection device as described in claim 6, characterized in that, The cleaning assembly includes: There are two side panels inside the cleaning tank; A brush plate is provided for each of the side plates, and the brush plate is located on one side opposite to the two side plates; the brush plate and the side plate are horizontally slidably connected; and the two brush plates are slidably connected by a sliding shaft; A U-shaped component is disposed on the top of the brush plate; the brush plate is linked to the vibration assembly through the U-shaped component and can move horizontally reciprocating under the drive of the vibration assembly.

8. A detection method, characterized in that, The air conditioning filter detection device as described in any one of claims 1-7 includes the following steps: S1. Loading: Use the lifting push rod to drive the bearing assembly to the top inside the testing cabinet, and install the air conditioner filter to be tested on the bearing assembly in preparation for testing; S2. Visual inspection: The lifting push rod drives the supporting component and the air conditioning filter it carries to move downward. During the movement, the CCD detector inside the inspection cabinet is used to inspect the appearance and size of the air conditioning filter. S3. Filter testing: As the carrier component moves the air conditioner filter through the CCD detector, it continues to move to the testing station of the filter testing component. The first and second testing tubes are pressed and sealed on both sides of the carrier component, so that the air conditioner filter is in the testing duct for filtration performance testing. S4. Powder Recovery: After the filtration performance test, the carrier component continues to move downward to the station where the recovery component is located. By connecting the first recovery pipe and the second recovery pipe to the outside of the carrier component and the air conditioning filter, the carrier component drives the air conditioning filter to shake and automatically clean the powder accumulated in the filter. The cleaned powder enters the inside of the collection box for collection under the guidance of the lower slope and the upper slope. S5. Cleaning the air conditioning filter: After most of the powder is removed, the carrier component continues to drive the air conditioning filter to be inside the cleaning box. Then, the two side plates inside the cleaning box are driven to move closer to the carrier component, so that the side plates drive the outer brush plate to move closer to the outside of the air conditioning filter. Then, the carrier component drives the air conditioning filter to shake, so that the air conditioning filter and the brush plate move relative to each other to achieve cleaning. S6. Drying the air conditioning filter: The cleaned air conditioning filter is lifted to the top of the cleaning box by the support component, and then shaken to drain water. After draining water, it is moved between the first and second recovery pipes and dried by blowing air through the input pipe on the outside of the first recovery pipe. S7. Reset and repeat test: The dried air conditioning filter moves to the top of the test cabinet under the drive of the bearing component, and then repeats steps S2 to S6 for cyclic testing.

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