Environment-friendly dust removal device for furniture processing

CN122770106APending Publication Date: 2026-09-18JIANGSU QIAOHONG SMART HOME CO LTD
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Patent Information

Application Number
CN202611117819.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-27
Publication Date
2026-09-18

AI Technical Summary

Technical Problem

[0003]现有除尘设备,过滤层级单一,净化能力不足:传统除尘仅设置单级布袋滤筒,粗木屑、超细粉尘混合过滤,滤材极易快速堵塞,需频繁停机清理,严重打断家具连续加工生产线,气流路径短、过滤效率低:常规设备风道直进直出,含尘气流与滤芯接触时间短,大量微粉无法被截留,废气排放不达标;滤芯负荷不均,耗材损耗快:固定风道结构下,进气侧滤芯持续承受高浓度粉尘,短时间饱和堵塞,其余滤芯利用率极低,整套滤芯更换周期短,运维成本

Benefits of technology

本发明通过设置三级梯度除尘:密封门粗过滤网拦截大块木屑纤维→U型过滤板完成中等粒径木粉粗滤→蛇形多滤芯柱通道深度捕捉微米级超细木粉,分层截留不同粒径粉尘,避免大小粉尘混合堵塞滤材。

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Abstract

The application discloses a kind of furniture processing environment-friendly dust removal devices, belong to furniture processing dust removal technical field, including mounting seat, filter box, exhaust fan and bottom plate, two groups of spare sliding filter elements are equipped in filter box to realize rough filtration;Bottom plate carries rotatable support column, multiple groups of storage cavities with filter element column are built in column body, cooperate with the U-shaped tube of top cover to form serpentine reciprocating filter channel, extend airflow travel to improve ultrafine dust interception effect.Support column is driven to rotate by electric push rod in cooperation with gear ring, and filter core air duct can be alternated to balance filter material load;Screw rod lifting top cover is matched with mechanical hard seal and electromagnetic inflatable flexible diaphragm double seal, effectively prevent air duct air leakage.The application realizes three-stage gradient dust removal, filter core consumable service life is longer, maintenance is convenient without secondary dust raising, dust suction negative pressure is stable, purification efficiency is high, can reduce dust explosion and occupational disease risk, adapt to continuous furniture processing production line, environmental protection and production benefit are outstanding.
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Description

Technical Field

[0001] This invention relates to the field of dust removal technology in furniture processing, and more specifically, to an environmentally friendly dust removal device for furniture processing. Background Technology

[0002] The furniture processing industry involves multiple processes such as board cutting, sanding, polishing, grooving, and milling. During the operation, a large amount of wood dust is continuously generated. The dust particle size ranges widely, including large wood chips and wood fibers as well as micron-sized ultrafine wood powder. If effective dust removal is not carried out, it will cause multiple hazards.

[0003] Existing dust removal equipment has a single filtration stage and insufficient purification capacity: Traditional dust removal only uses a single-stage bag filter cartridge, which filters a mixture of coarse wood chips and ultrafine dust. The filter media is prone to rapid clogging, requiring frequent shutdowns for cleaning, which seriously disrupts continuous furniture processing production lines. The airflow path is short and the filtration efficiency is low: Conventional equipment has a straight inlet and outlet air duct, resulting in short contact time between the dust-laden airflow and the filter element. A large amount of fine powder cannot be intercepted, and the exhaust gas emissions do not meet standards. The filter element load is uneven, and the consumables are consumed quickly: Under the fixed air duct structure, the filter element on the air inlet side is continuously subjected to high concentrations of dust, which saturates and clogs in a short time. The utilization rate of the remaining filter elements is extremely low, the replacement cycle of the entire filter element set is short, and the operation and maintenance costs are high. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide an environmentally friendly dust removal device for furniture processing. The supporting column is rotatable and adjustable. The alignment between the receiving cavity and the air duct through hole is switched by an electric push rod and a toothed ring and toothed plate, thereby changing the air intake position of the serpentine air duct. The low-load filter element at the end of the airflow can be rotated to the front end of the air intake, and all filter elements are evenly distributed to the dust-laden airflow, preventing premature saturation and clogging of filter elements on one side.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An environmentally friendly dust removal device for furniture processing includes a mounting base; a filter box is fixed to one end of the mounting base, and an exhaust fan is fixed to the other end; a chassis is provided above the mounting base; an exhaust pipe and an exhaust pipe are respectively connected to the chassis and the filter box and the exhaust fan; two sets of parallel filter elements are slidably arranged inside the filter box; a support member is fixed to the surface of the chassis; the support member includes a fixing frame; a support column is rotatably arranged inside the fixing frame; a collection cavity is evenly opened inside the support column; a filter element column is inserted into the collection cavity; a lifting member adapted to the support column is slidably arranged on the fixing frame; the lifting member includes a top cover; through holes adapted to the corresponding collection cavities are opened on the surface of the top cover and the chassis; U-shaped tubes are fixed to the two sets of opposite through holes on the top cover and one set of opposite through holes on the bottom surface of the chassis; the exhaust pipe, the collection cavities, the U-shaped tube, and the exhaust pipe form a serpentine filtration channel.

[0006] The invention is further configured such that: a sealing door is hinged to the side of the filter box; sliding grooves are provided on both opposite sides of the filter box; the filter element includes a storage box symmetrically fixed on both opposite sides of the filter box and a U-shaped filter plate slidably disposed in the storage box; an clearance opening is provided on the side of the storage box to slide and cooperate with the U-shaped filter plate; ear plates are symmetrically fixed at the clearance opening on the side of the storage box; the ear plates are fixed to the filter box by fastening bolts.

[0007] The invention is further configured such that: a guide groove is provided on one side of the storage box; a guide post that slides with the guide groove is fixed on the side of the U-shaped filter plate; an ear seat is fixed at the end of the guide post; a dust collection bag is connected to the bottom of the storage box; a conveying pipe is provided above the top of the storage box; several ear tubes are evenly connected between the conveying pipe and the storage box; an air inlet is provided on the side of the sealed door; a coarse filter screen is fixed on the air inlet; an extension pipe is symmetrically connected to the output end of the exhaust fan; and a flexible hose is connected between the extension pipe and the conveying pipe.

[0008] The invention is further configured such that: a rotating rod is rotatably provided on the side of the U-shaped filter plate; inclined partitions are uniformly fixed on the circumference of the rotating rod; an operating hole coaxial with the rotating rod is provided on the other side of the storage box; and a hexagonal groove adapted to an external hexagonal wrench is provided at the end of the rotating rod.

[0009] The present invention is further configured such that: the fixing frame includes a fixing ring arranged coaxially; the bearing column is rotatably arranged between the two fixing rings; a U-shaped plate is symmetrically fixed between the two fixing rings; the U-shaped plate is fixed on the surface of the chassis; a toothed ring is fixed on the outer wall of the bearing column; an electric push rod is fixed through a set of U-shaped plates; an extension seat is fixed at the telescopic end of the electric push rod; and a toothed plate that meshes with the toothed ring is fixed on the side of the extension seat.

[0010] The invention is further configured such that: a motor is fixed to the bottom surface of another set of U-shaped plates, and a limiting groove is provided on its side; a lead screw is fixed to the output end of the motor; an L-shaped plate that slides with the limiting groove is fixed to the circumferential side of the top cover; and a lifting seat that rotates with the lead screw is fixed to the bottom of the L-shaped plate.

[0011] The invention is further configured such that: annular cavities coaxial with the corresponding through holes are provided on the top of the top cover and the bottom of the chassis; annular elastic diaphragms are provided between the inner walls of the annular cavities; sealing grooves coaxial with the corresponding storage cavities are provided at both ends of the bearing column; the annular elastic diaphragms in the inflated state are adapted to the corresponding sealing grooves; sealing grooves coaxial with the bearing column are provided at both ends; and annular sealing plates adapted to the sealing grooves are fixed on the top cover and the chassis.

[0012] The invention is further configured such that: a piston cylinder is fixed on both the top cover and the chassis; a connecting pipe communicating with the corresponding annular cavity is uniformly arranged on the periphery of the piston cylinder near its bottom; a support frame is fixed on both the top cover and the chassis; a piston plate is slidably arranged inside the piston cylinder; a piston rod is fixed on the surface of the piston plate; a connecting plate is fixed at the end of the piston rod; a return spring sleeved on the piston rod is connected between the connecting plate and the top of the piston cylinder; an iron ring is fixed on the outer wall of the connecting plate; and an annular electromagnet is fixed on the support frame.

[0013] The advantages of this invention are: This invention employs a three-stage gradient dust removal system: a sealed door with a coarse filter screen intercepts large pieces of wood fiber; a U-shaped filter plate completes coarse filtration of medium-sized wood powder; and a serpentine multi-filter column channel deeply captures micron-sized ultrafine wood powder, thus layering and retaining dust of different particle sizes to prevent the mixing of large and small dust particles from clogging the filter media.

[0014] The present invention uses an exhaust duct, multiple sets of receiving cavities, a U-shaped duct, and an exhaust duct to form a reciprocating serpentine filtration channel. With the same equipment footprint, the contact time between the dust-laden airflow and the filter column is extended several times. The airflow fully contacts the filter material, significantly improving the ultrafine dust interception rate. The exhaust air meets the environmental emission standards of the woodworking industry.

[0015] The bearing column of this invention can be rotated and adjusted. The alignment relationship between the receiving cavity and the air duct through hole is switched by electric push rod and toothed ring tooth plate transmission, thereby changing the air intake position of the serpentine air duct. The low-load filter element at the end of the airflow can be rotated to the front end of the air intake, and all filter element columns evenly receive the dust-laden airflow, preventing premature saturation and blockage of filter elements on one side. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an environmentally friendly dust removal device for furniture processing according to the present invention.

[0017] Figure 2 For the present invention Figure 1 A structural diagram from another angle.

[0018] Figure 3 This is a schematic diagram of the serpentine filter channel of the present invention.

[0019] Figure 4 This is a structural schematic diagram of the filter box, exhaust fan, and chassis assembly of the present invention.

[0020] Figure 5 For the present invention Figure 4 A structural diagram from another angle.

[0021] Figure 6 This is a schematic diagram of the structure of the carrier component of the present invention.

[0022] Figure 7 This is a structural schematic diagram of the carrier component of the present invention from another angle.

[0023] Figure 8 This is a schematic diagram of the filter element column of the present invention.

[0024] Figure 9 This is a schematic diagram of the U-shaped tube of the present invention.

[0025] Figure 10 This is a schematic diagram of the structure of the storage box of the present invention.

[0026] Figure 11 For the present invention Figure 10 A structural diagram from a right-view perspective.

[0027] Figure 12 This is a schematic diagram of the structure of the U-shaped filter plate of the present invention.

[0028] Figure 13 This is a schematic diagram of the lifting component of the present invention.

[0029] Figure 14 For the present invention Figure 13 A structural diagram from a frontal viewpoint.

[0030] Figure 15 For the present invention Figure 13 A structural diagram from another angle.

[0031] In the diagram: 1. Mounting base; 2. Filter box; 3. Exhaust fan; 4. Chassis; 5. Exhaust duct; 6. Exhaust duct; 7. Filter element; 8. Supporting element; 9. Supporting column; 10. Storage chamber; 11. Filter element column; 12. Lifting element; 13. Top cover; 14. Through hole; 15. U-shaped tube; 16. Sealing door; 17. Slide groove; 18. Storage box; 19. U-shaped filter plate; 20. Clearance opening; 21. Ear plate; 22. Guide groove; 23. Guide column; 24. Dust collection bag; 25. Conveying pipe; 26. Ear tube; 27. Extension tube; 28. Rotating rod; 29. ​​Inclined partition; 30. Operating hole; 31. Fixing ring; 32. U-shaped plate; 33. Gear ring; 34. Electric push rod; 35. Extension seat; 36. Gear plate; 37. Motor; 38. Lead screw; 39. L-shaped plate; 40. Lifting seat; 41. Annular cavity; 42. Annular elastic diaphragm; 43. Sealing groove II; 44. Annular sealing plate; 45. Piston cylinder; 46. Connecting pipe; 47. Support frame; 48. Piston rod; 49. Connecting plate; 50. Return spring; 51. Iron ring; 52. Annular electromagnet. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0034] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0035] Example 1, please refer to Figure 1-15 The present invention provides the following technical solutions: An environmentally friendly dust removal device for furniture processing specifically includes a mounting base 1; a filter box 2 is fixed at one end of the mounting base 1, and an exhaust fan 3 is fixed at the other end; a chassis 4 is provided above the mounting base 1; an exhaust pipe 5 and an exhaust pipe 6 are respectively connected to the chassis 4 between the filter box 2, the exhaust fan 3, and the chassis 4; two sets of parallel filter elements 7 are slidably arranged inside the filter box 2; the two sets of filter elements 7 are backups for each other and can be pulled out and repaired individually.

[0036] A bearing component 8 is fixed to the surface of the chassis 4; the bearing component 8 includes a fixing frame; a bearing column 9 is rotatably arranged inside the fixing frame; a storage cavity 10 is evenly opened inside the bearing column 9; a filter column 11 is inserted into the storage cavity 10. A lifting component 12 adapted to the bearing column 9 is slidably installed on the fixed frame; the lifting component 12 includes a top cover 13; the top cover 13 and the surface of the chassis 4 are both provided with through holes 14 adapted to the corresponding storage cavities 10; two sets of opposite through holes 14 on the top cover 13 and one set of opposite through holes 14 on the bottom surface of the chassis 4 are fixed with U-shaped tubes 15; the exhaust pipe 5, each set of storage cavities 10, the U-shaped tube 15 and the exhaust pipe 6 form a serpentine filtration channel, the filter box 2 coarsely filters the air out → exhaust pipe 5 → through hole 14 on the left side of the chassis 4 → filter element column 11 inside the corresponding storage cavity 10 → U-shaped tube 15 on the top cover 13 reverses direction → filter element column 11 inside the adjacent storage cavity 10 → U-shaped tube 15 at the bottom of the chassis 4 reverses direction → filter element column 11 inside the last set of storage cavities 10 → exhaust pipe 6 → exhaust fan 3, forming a complete reciprocating serpentine filtration channel, which greatly extends the contact time between dust and filter element column 11.

[0037] Working principle of this embodiment: When the exhaust fan 3 is started, the air containing wood dust generated from grinding and cutting in the workshop first enters the filter box 2, where it is filtered by the filter element 7. After coarse filtration, the airflow with initially improved cleanliness is sent to the chassis 4 through the exhaust pipe 5, and then passes back and forth through four filter columns 11 along the serpentine filtration channel. The ultrafine wood dust is deeply trapped by the filter columns 11, and the purified air is discharged from the workshop through the exhaust pipe 6 by the exhaust fan 3. The serpentine reciprocating air duct increases the airflow travel, significantly increasing the filtration time and dust adsorption efficiency for the same equipment footprint. At the same time, the multi-layer filter columns 11 divert the airflow, resulting in a lower load on each filter column 11.

[0038] After prolonged use, dust accumulates more quickly on the filter column 11 directly facing the air inlet, causing an imbalance in filtration resistance. At this point, the lifting motor 37 drives the lead screw 38 to rotate, raising the top cover 13 and separating it from the support column 9. The U-shaped tube 15 then detaches from the upper end of the filter column 11. Subsequently, the electric push rod 34 is activated, pushing the toothed plate 36 to move horizontally. This, through the toothed ring 33, rotates the support column 9 90° / 180°, switching the alignment of the four sets of receiving chambers 10 with the upper and lower through holes 14. This reconfigures the serpentine air duct, moving the filter column 11 from the airflow end to the air inlet front. All filter columns 11 are evenly contacted by the dust-laden airflow, preventing premature saturation of some filter columns and extending the replacement cycle of the entire filter column set. After adjustment, the motor 37 reverses and lowers the top cover 13, re-sealing the double seal and restoring normal dust removal.

[0039] After the machine is stopped, the top cover 13 is raised and the support column 9 is rotated to the maintenance position. The filter column 11 can be pulled out directly to complete the cleaning or replacement without disassembling the whole machine, making disassembly and assembly convenient.

[0040] Example 2 Please see Figure 1-15 This second embodiment is an improvement on the first embodiment as follows: Specifically, a sealing door 16 is hinged to the side of the filter box 2; sliding grooves 17 are provided on both opposite sides of the filter box 2; the filter element 7 includes a storage box 18 symmetrically fixed on both opposite sides of the filter box 2 and a U-shaped filter plate 19 slidably disposed in the storage box 18; an avoidance opening 20 is provided on the side of the storage box 18 to slide and cooperate with the U-shaped filter plate 19; ear plates 21 are symmetrically fixed at the avoidance opening 20 on the side of the storage box 18; the ear plates 21 are fixed to the filter box 2 by fastening bolts.

[0041] A guide groove 22 is provided on one side of the storage box 18; a guide post 23 that slides with the guide groove 22 is fixed on the side of the U-shaped filter plate 19; an ear seat is fixed at the end of the guide post 23; a dust collection bag 24 is connected to the bottom of the storage box 18; a conveying pipe 25 is provided above the top of the storage box 18; several ear tubes 26 are evenly connected between the conveying pipe 25 and the storage box 18, and the ear tubes 26 are aligned with the filter surface of the U-shaped filter plate 19 to provide downward blowing airflow; an air inlet is provided on the side of the sealing door 16; a coarse filter screen is fixed on the air inlet; an extension pipe 27 is symmetrically connected to the output end of the exhaust fan 3; a flexible hose is connected between the extension pipe 27 and the conveying pipe 25 to divert the purified clean air to the coarse filtration area as a dust cleaning blowing air source.

[0042] A rotating rod 28 is rotatably mounted on the side of the U-shaped filter plate 19; inclined partitions 29 are evenly fixed around the circumference of the rotating rod 28, and when the inclined partitions 29 rotate, they are in close contact with the filter surface of the U-shaped filter plate 19 to scrape off the attached wood powder; an operating hole 30 coaxial with the rotating rod 28 is opened on the other side of the storage box 18; a hexagonal groove adapted to an external hexagonal wrench is opened at the end of the rotating rod 28.

[0043] The fixed frame includes a fixed ring 31 arranged coaxially; a support column 9 is rotatably positioned between two fixed rings 31; a U-shaped plate 32 is symmetrically fixed between the two fixed rings 31; the U-shaped plate 32 is fixed to the surface of the chassis 4; a toothed ring 33 is fixed to the outer wall of the support column 9; an electric push rod 34 is fixed through the interior of a set of U-shaped plates 32; an extension seat 35 is fixed to the telescopic end of the electric push rod 34; a toothed plate 36 that meshes with the toothed ring 33 is fixed to the side of the extension seat 35; the electric push rod 34 telescopically pushes the toothed plate 36 to translate, driving the support column 9 to rotate within the fixed ring 31, switching the alignment combination of the storage cavity 10 and the upper and lower through holes 14, and changing the direction of the serpentine air duct.

[0044] Another set of U-shaped plates 32 has a motor 37 fixed on its bottom surface and a limit groove opened on its side; a lead screw 38 is fixed at the output end of the motor 37; an L-shaped plate 39 that slides with the limit groove is fixed on the side of the top cover 13; a lifting seat 40 that rotates with the lead screw 38 is fixed at the bottom of the L-shaped plate 39; the motor 37 drives the lead screw 38 to rotate in both forward and reverse directions, thereby lifting the top cover 13 as a whole, realizing the separation and pressing action of the top cover 13 and the bearing column 9.

[0045] The top of the top cover 13 and the bottom of the chassis 4 are both provided with annular cavities 41 coaxial with the corresponding through holes 14; annular elastic diaphragms 42 are provided between the inner walls of the annular cavities 41; sealing grooves 1 coaxial with the corresponding storage cavities 10 are provided at both ends of the supporting column 9; the annular elastic diaphragm 42 in the inflated state is adapted to the corresponding sealing groove 1; sealing grooves 2 coaxial with the supporting column 9 are provided at both ends of the supporting column 9; annular sealing plates 44 adapted to sealing grooves 2 43 are fixed on the top cover 13 and the chassis 4. When the top cover 13 is lowered and pressed, the annular sealing plate 44 is embedded in the sealing groove 2 43 to form the first mechanical hard seal; after the annular cavity 41 is inflated, the elastic diaphragm 42 expands and is embedded in the sealing groove 1 to form the second flexible airtight seal, preventing air leakage in the air duct.

[0046] A piston cylinder 45 is fixed on both the top cover 13 and the chassis 4; a connecting pipe 46 is uniformly connected to the corresponding annular cavity 41 on the periphery of the piston cylinder 45 near its bottom; a support frame 47 is fixed on both the top cover 13 and the chassis 4; a piston plate is slidably arranged inside the piston cylinder 45; a piston rod 48 is fixed on the surface of the piston plate; a connecting plate 49 is fixed at the end of the piston rod 48; a return spring 50 sleeved on the piston rod 48 is connected between the connecting plate 49 and the top of the piston cylinder 45; an iron ring 51 is fixed on the outer wall of the connecting plate 49; an annular electromagnet 52 is fixed on the support frame 47. When the annular electromagnet 52 is energized, it attracts the iron ring 51 and presses down the piston plate, inflating the annular elastic diaphragm 42 into the annular cavity 41; when the power is turned off, the return spring 50 pulls the piston to return to its original position, releasing the gas in the cavity, and the annular elastic diaphragm 42 contracts and returns to its original position, allowing the top cover 13 to rise and fall smoothly.

[0047] Working principle of this embodiment two: Multi-stage dust removal complete airflow process Dust-laden particles in the furniture workshop → coarse filter screen on sealed door 16 (first stage to intercept large wood chips and fibers) → inner cavity of filter box 2 → U-shaped filter plate 19 (second stage coarse filtration, to intercept medium-sized wood dust) → exhaust pipe 5 → chassis serpentine filter channel (third stage deep fine filtration, to capture micron-sized ultrafine dust) → exhaust pipe 6 → exhaust fan 3 to discharge qualified air.

[0048] The exhaust fan 3 directs clean air to the extension pipe 27, hose, delivery pipe 25, and ear tube 26, blowing downwards onto the U-shaped filter plate 19 to assist in dust collection.

[0049] Once a single U-shaped filter plate (19) becomes saturated with dust, there is no need to stop the machine. Loosen the fastening bolts of the corresponding storage box ear plate 21, pull the U-shaped filter plate 19 outward, slide it into the outer storage box 18 along the guide groove 22, and after the U-shaped filter plate 19 is fully stored, one side of it will block the avoidance opening 20, so that dust will not leak out from the avoidance opening. Another set of clean, spare U-shaped filter plates is pushed into the filter box 2 along the slide 17 and put into filtration work. The equipment maintains negative pressure ventilation throughout the process, and the dust removal in the workshop is uninterrupted. The cleaning operation of the U-shaped filter plate 19 inside the storage box 18 will not affect the operation of the production line.

[0050] The automatic dust collection process of the U-shaped filter plate 19, consisting of scraping and reverse blowing, is as follows: A hex wrench is inserted through the operating hole 30 into the hexagonal groove of the rotating rod 28. The rotating rod 28 is manually rotated, and the inclined partition 29 continuously scrapes the wood powder that has accumulated on the surface of the U-shaped filter plate 19. The clean air from the exhaust fan 3 blows vertically downward through the ear tube 26 to sweep the U-shaped filter plate 19, and the dust scraped off quickly settles into the bottom dust collection bag 24 under the action of airflow and is collected in a concentrated manner. The dust collection bag 24 is a detachable bag, which can be removed and replaced directly when full, making it convenient to empty the dust and preventing secondary dust generation.

[0051] The operation process for the alternating sealing of filter element column 11 (same as in Example 1, but linked with the coarse filtration system) is as follows: After coarse filtration, the airflow enters the serpentine fine filtration channel. After running for a period of time, the motor 37 is started to drive the lead screw 38 to rotate, thereby lifting the top cover 13. The electric push rod 34 is started to drive the toothed plate 36 to move, which drives the toothed ring 33 and the supporting column 9 to rotate. The supporting column 9 rotates to change the position of the filter element air duct, completing the load balancing of the filter element column 11. The top cover 13 falls back, and the electromagnet 52 drives the connecting plate 49, piston rod 48 and piston plate to descend through the electromagnetic attracting ring 51. The piston plate slides down along the inner wall of the piston cylinder 45, sending the air inside the piston cylinder 45 into the corresponding annular cavity 41 through the corresponding connecting pipe 46. The annular elastic diaphragm 42 is inflated and expanded, the air duct is double-sealed, and the multi-stage filtration is restored. The entire coarse filtration + fine filtration system operates synchronously.

[0052] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0053] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0054] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0056] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A furniture processing environmental dust removal device, comprising a mounting base (1); a filter box (2) is fixed at one end of the mounting base (1), and an exhaust fan (3) is fixed at the other end; characterized in that: A chassis (4) is provided above the mounting base (1); the filter box (2) and the exhaust fan (3) are respectively connected to the chassis (4) by an exhaust pipe (5) and an exhaust pipe (6); two sets of parallel filter elements (7) are slidably arranged inside the filter box (2); The chassis (4) has a bearing component (8) fixed on its surface; the bearing component (8) includes a fixing frame; a bearing column (9) is rotatably arranged inside the fixing frame; a storage cavity (10) is evenly opened inside the bearing column (9); a filter column (11) is inserted into the storage cavity (10); A lifting component (12) adapted to the supporting column (9) is slidably installed on the fixed frame; the lifting component (12) includes a top cover (13); the top cover (13) and the chassis (4) are both provided with through holes (14) adapted to the corresponding storage cavity (10); the two sets of opposite through holes (14) on the top cover (13) and the one set of opposite through holes (14) on the bottom surface of the chassis (4) are all fixed with U-shaped tubes (15); the exhaust pipe (5), each set of storage cavities (10), the U-shaped tube (15) and the exhaust pipe (6) form a serpentine filter channel.

2. The environmentally friendly dust removal device for furniture processing according to claim 1, characterized in that: The filter box (2) is hinged to a sealing door (16) on the side; the filter box (2) is provided with sliding grooves (17) on both opposite sides; the filter element (7) includes a storage box (18) symmetrically fixed on both opposite sides of the filter box (2) and a U-shaped filter plate (19) slidably disposed in the storage box (18); the storage box (18) is provided with a clearance opening (20) on the side that slides with the U-shaped filter plate (19); ear plates (21) are symmetrically fixed at the clearance opening (20) on the side of the storage box (18); the ear plates (21) are fixed to the filter box (2) by fastening bolts.

3. The environmentally friendly dust removal device for furniture processing according to claim 2, characterized in that: A guide groove (22) is provided on one side of the storage box (18); a guide post (23) that slides with the guide groove (22) is fixed on the side of the U-shaped filter plate (19); an ear seat is fixed at the end of the guide post (23); a dust collection bag (24) is connected to the bottom of the storage box (18); a conveying pipe (25) is provided above the top of the storage box (18); several ear tubes (26) are evenly connected between the conveying pipe (25) and the storage box (18); an air inlet is provided on the side of the sealing door (16); a coarse filter screen is fixed on the air inlet; an extension pipe (27) is symmetrically connected to the output end of the exhaust fan (3); a flexible hose is connected between the extension pipe (27) and the conveying pipe (25).

4. The environmentally friendly dust removal device for furniture processing according to claim 3, characterized in that: The U-shaped filter plate (19) has a rotating rod (28) on its side; the rotating rod (28) has inclined partitions (29) evenly fixed on its circumference; the storage box (18) has an operating hole (30) on the other side that is coaxial with the rotating rod (28); the end of the rotating rod (28) has a hexagonal groove that is compatible with an external hexagonal wrench.

5. The environmentally friendly dust removal device for furniture processing according to claim 1, characterized in that: The fixed frame includes a fixed ring (31) arranged coaxially; the bearing column (9) is rotatably arranged between the two fixed rings (31); a U-shaped plate (32) is symmetrically fixed between the two fixed rings (31); the U-shaped plate (32) is fixed on the surface of the chassis (4); a toothed ring (33) is fixed on the outer wall of the bearing column (9); an electric push rod (34) is fixed through the inside of a set of U-shaped plates (32); an extension seat (35) is fixed at the telescopic end of the electric push rod (34); a toothed plate (36) that meshes with the toothed ring (33) is fixed on the side of the extension seat (35).

6. The environmentally friendly dust removal device for furniture processing according to claim 5, characterized in that: Another set of U-shaped plates (32) has a motor (37) fixed on the bottom surface and a limit groove opened on its side; a lead screw (38) is fixed at the output end of the motor (37); an L-shaped plate (39) that slides with the limit groove is fixed on the side of the top cover (13); a lifting seat (40) that rotates with the lead screw (38) is fixed at the bottom of the L-shaped plate (39).

7. The environmentally friendly dust removal device for furniture processing according to claim 6, characterized in that: The top of the top cover (13) and the bottom of the chassis (4) are provided with annular cavities (41) coaxial with the corresponding through holes (14); annular elastic diaphragms (42) are provided between the inner walls of the annular cavities (41); sealing grooves one coaxial with the corresponding storage cavities (10) are provided at both ends of the bearing column (9); the annular elastic diaphragm (42) in the inflated state is adapted to the corresponding sealing groove one; sealing grooves two coaxial with the bearing column (9) are provided at both ends of the bearing column (9); annular sealing plates (44) adapted to sealing grooves two (43) are fixed on the top cover (13) and the chassis (4).

8. The environmentally friendly dust removal device for furniture processing according to claim 7, characterized in that: A piston cylinder (45) is fixed on both the top cover (13) and the chassis (4); a connecting pipe (46) is uniformly connected to the corresponding annular cavity (41) on the periphery of the piston cylinder (45) near its bottom; a support frame (47) is fixed on both the top cover (13) and the chassis (4); a piston plate is slidably arranged inside the piston cylinder (45); a piston rod (48) is fixed on the surface of the piston plate; a connecting plate (49) is fixed at the end of the piston rod (48); a return spring (50) sleeved on the piston rod (48) is connected between the connecting plate (49) and the top of the piston cylinder (45); an iron ring (51) is fixed on the outer wall of the connecting plate (49); and an annular electromagnet (52) is fixed on the support frame (47).