Multi-layer folding self-cleaning air filter

Abstract

The utility model relates to the field of production of air filters, in particular to a multi-layer folding self-cleaning air filter, which comprises a filtering mechanism, a dust collection base arranged at the bottom of the filtering mechanism, a dust collection fan arranged in the center of the dust collection base, and a scraping and sweeping mechanism. When the outer scraping and sweeping frame, the middle scraping and sweeping frame and the inner scraping and sweeping frame move up and down, dust attached to the filtering mechanism is scraped off through rubber scraping pieces of the outer scraping and sweeping frame, the middle scraping and sweeping frame and the inner scraping and sweeping frame, and the situation that the dust is attached and influences the air filtering speed is avoided; a rotating impeller drives a rotating shifting ring to rotate to push a concave wedge plate upwards, so that a single brush plate, a first double brush plate and a second double brush plate move up and down in an outer scraping and sweeping frame, a middle scraping and sweeping frame and an inner scraping and sweeping frame, and stubborn dust attached to the filtering mechanism is brushed, swept and cleaned.

Description

TECHNICAL FIELD

[0001] The utility model relates to air filter production field especially is related to a kind of multilayer folding self-cleaning air filter. BACKGROUND

[0002] Multilayer folding air filter is a kind of air purification device that filter material is folded into wave shape or multilayer structure by special process, and multilayer wave shape filter material is formed into wave pattern structure by folding multiple times using aluminum mesh or non-woven fabric and the like, and effective aperture is reduced by cross-over superposition, to enhance filtering accuracy, and filter area can be expanded, and effective filter area is significantly increased under the same volume by paper folding process, and the existing multilayer folding air filter is generally cleaned by air reverse flow cleaning or taking down multiple filter materials for cleaning one by one, and if air reverse flow cleaning is used, the flow speed of air after passing through filter material is greatly reduced, so that some dust or stains with strong adhesion cannot be completely cleaned, and the method of disassembling filter material one by one is obviously more troublesome. SUMMARY

[0003] The utility model discloses a kind of multilayer folding self-cleaning air filter to solve the above problems.

[0004] The utility model discloses the above-mentioned purposes are realized by the following technical solutions:

[0005] A kind of multilayer folding self-cleaning air filter, including filter mechanism, filter mechanism bottom is equipped with dust absorption base, dust absorption base center position is equipped with dust absorption fan, still include scraping mechanism;

[0006] Scraping mechanism includes outer scraping frame, and the inner side of outer scraping frame is equipped with middle scraping frame, and the inner side of middle scraping frame is equipped with inner scraping frame, and the top of outer scraping frame, middle scraping frame and inner scraping frame is equipped with lifting assembly, and single brush plate is slidably connected in the inside of outer scraping frame, first double brush plate is slidably connected in the inside of middle scraping frame, second double brush plate is slidably connected in the inside of inner scraping frame, and the bottom of outer scraping frame, middle scraping frame and inner scraping frame is equipped with two suction mechanisms;

[0007] Suction mechanism includes rotating knob, and the upper end of rotating knob is equipped with two symmetrical concave wedge plates, and rotating vane is fixed on the lower end of rotating knob, and rotating vane outside is covered with corrugated pipe for guiding dust into the inside of dust absorption base.

[0008] Preferably, the inner circle of the outer scraping frame and the inner and outer sides of the middle scraping frame and the inner scraping frame are both provided with rubber scrapers with toothed structure.

[0009] Preferably, the inner circle of the single brush plate and the inner and outer sides of the first double brush plate and the second double brush plate are both attached with bristles.

[0010] Preferably, the bottom of the outer scraping frame, the middle scraping frame and the inner scraping frame are provided with through holes for allowing the rotating knob to rotate.

[0011] Preferably, the filter mechanism comprises a protective screen, an upper pressing plate fixed to the upper end of the protective screen, a lower pressing plate fixed to the lower end of the protective screen, a first filter screen, a second filter screen and a third filter screen fixed between the upper pressing plate and the lower pressing plate, the third filter screen being located inside the second filter screen, the second filter screen being located inside the first filter screen, and a discharge fan fixed to the top center of the upper pressing plate for discharging air inside the third filter screen.

[0012] Preferably, the lower pressing plate is provided with air guide holes for connecting six corrugated pipes.

[0013] Preferably, the dust suction base forms a dust suction cavity with the lower pressing plate.

[0014] Compared with the prior art, the beneficial effects are as follows:

[0015] 1. When the outer scraping frame, the middle scraping frame and the inner scraping frame move up and down, the dust attached to the filter mechanism is scraped off by the rubber blades of the three, so that the dust is prevented from being attached and affecting the air filtration speed.

[0016] 2. When the outer scraping frame, the middle scraping frame and the inner scraping frame move upwards, the rotating knob is driven to rotate by the rotating impeller to push the concave wedge upwards, so that the single brush plate, the first double brush plate and the second double brush plate move up and down inside the outer scraping frame, the middle scraping frame and the inner scraping frame, thereby brushing and cleaning the stubborn dust attached to the filter mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 is a structural schematic view of the multi-layer folded self-cleaning air filter according to the present application;

[0019] Figure 2 is a first sectional view of the multi-layer folded self-cleaning air filter according to the present application;

[0020] Figure 3 is a second sectional view of the multi-layer folded self-cleaning air filter according to the present application;

[0021] Figure 4It is the first filter screen, the second filter screen and the third filter screen structure schematic view of the multi-layer folding self-cleaning air filter of the utility model.

[0022] Figure 5 It is the outer scraping frame, the middle scraping frame and the inner scraping frame local section view of the multi-layer folding self-cleaning air filter of the utility model.

[0023] Figure 6 It is the lifting frame structure schematic view of the multi-layer folding self-cleaning air filter of the utility model.

[0024] Figure 7 It is the dust suction base structure schematic view of the multi-layer folding self-cleaning air filter of the utility model.

[0025] Figure 8 It is the rotating knob, the rotating impeller and the concave wedge plate structure schematic view of the multi-layer folding self-cleaning air filter of the utility model.

[0026] Figure 9 It is the outer scraping frame, the middle scraping frame and the inner scraping frame structure schematic view of the multi-layer folding self-cleaning air filter of the utility model.

[0027] Figure 10 The utility model discloses a multi-layer folding self-cleaning air filter's suction mechanism local section view.

[0028] The figure mark is explained as follows:

[0029] 1, filter mechanism;2, scraping mechanism;3, suction mechanism;4, dust suction base;5, dust suction fan;11, upper pressing plate;12, protective net;13, lower pressing plate;14, first filter screen;15, second filter screen;16, third filter screen;17, export fan;21, outer scraping frame;22, middle scraping frame;23, inner scraping frame;24, electric push rod;25, lifting frame;26, single brush plate;27, first double brush plate;28, second double brush plate;31, rotating knob;32, rotating impeller;33, concave wedge plate;34, bellows. Specific implementation

[0030] In the description of the utility model, need explanation, unless another explicit stipulation and limitation, term " install " " link " " connect " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;It can be directly connected, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements inside.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood through specific circumstances.

[0031] The utility model discloses further illustrate below combining with the drawing:

[0032] As Figures 1-10 The utility model discloses a multi -layered pleated self -cleaning air filter, including filter mechanism 1, filter mechanism 1 bottom is equipped with dust collection base 4, and dust collection base 4 center position is equipped with dust collection fan 5, still including sweep mechanism 2;

[0033] In this embodiment: sweep mechanism 2 includes outer sweep frame 21, and the inner side of outer sweep frame 21 is equipped with middle sweep frame 22, and the inner side of middle sweep frame 22 is equipped with inner sweep frame 23, and the top of outer sweep frame 21, middle sweep frame 22 and inner sweep frame 23 is equipped with lifting assembly, and the inside sliding connection of outer sweep frame 21 has single brush plate 26, and the inside sliding connection of middle sweep frame 22 has first double brush plate 27, and the inside sliding connection of inner sweep frame 23 has second double brush plate 28, and the inner and outer two sides of the inner circle of outer sweep frame 21 and middle sweep frame 22, inner sweep frame 23 are equipped with the rubber scraper of toothed structure, and the bottom of outer sweep frame 21, middle sweep frame 22 and inner sweep frame 23 are equipped with two suction mechanisms 3, and the dust on filter mechanism 1 is scraped off through the rubber scraper of outer sweep frame 21, middle sweep frame 22 and inner sweep frame 23 three.

[0034] In this embodiment: suction mechanism 3 includes rotary knob 31, and the upper end of rotary knob 31 is equipped with two symmetrical concave wedge plates 33, and the lower end of rotary knob 31 is fixed with rotary impeller 32, and the outer side of rotary impeller 32 is covered with corrugated pipe 34 for guiding dust into the inside of dust collection base 4, and the air in the inside of dust collection base 4 is blown outwards through dust collection fan 5, at this time, corrugated pipe 34 will suck the air at single brush plate 26, first double brush plate 27 and second double brush plate 28 into the inside of dust collection base 4, and the dust generated during the cleaning of the three is also sucked into dust collection base 4, in this process, rotary impeller 32 will be rotated due to the flow of air, and rotary knob 31 will be synchronously rotated by rotary impeller 32, and the concave wedge plate 33 on the upper side of rotary knob 31 is pushed upwards through rotary knob 31, and then makes single brush plate 26, first double brush plate 27 and second double brush plate 28 reciprocate on the inner side of outer sweep frame 21, middle sweep frame 22 and inner sweep frame 23.

[0035] In the embodiment, the inner circle of the single brush plate 26 and the inner and outer sides of the first double brush plate 27 and the second double brush plate 28 are all adhered with bristles, the bottom of the outer scraping frame 21, the middle scraping frame 22 and the inner scraping frame 23 are all provided with through holes for allowing the rotating knob 31 to rotate, the outer scraping frame 21 and the rubber scraping plate of the inner circle thereof cooperate with the outer side of the first filter screen 14 to form a first cleaning cavity, the rubber scraping plates on the two sides of the middle scraping frame 22 cooperate with the inner side of the first filter screen 14 and the outer side of the second filter screen 15 to form a second cleaning cavity, and the rubber scraping plates on the two sides of the inner scraping frame 23 cooperate with the inner side of the second filter screen 15 and the outer side of the third filter screen 16 to form a third cleaning cavity. At this time, the single brush plate 26, the first double brush plate 27 and the second double brush plate 28 are driven by the suction mechanism 3 to reciprocate in the first cleaning cavity, the second cleaning cavity and the third cleaning cavity respectively, so that the bristles of the single brush plate 26, the first double brush plate 27 and the second double brush plate 28 are used to brush and clean the inner and outer sides of the first filter screen 14, the inner and outer sides of the second filter screen 15 and the outer side of the third filter screen 16 respectively.

[0036] In the embodiment, the filter mechanism 1 includes the protective screen 12, the upper pressing plate 11 is fixed to the upper end of the protective screen 12, the lower pressing plate 13 is fixed to the lower end of the protective screen 12, the first filter screen 14, the second filter screen 15 and the third filter screen 16 are fixed between the upper pressing plate 11 and the lower pressing plate 13, the third filter screen 16 is located inside the second filter screen 15, the second filter screen 15 is located inside the first filter screen 14, the discharge fan 17 for sending out the air inside the third filter screen 16 is fixed to the top center position of the upper pressing plate 11, the air guide holes for connecting the six corrugated pipes 34 are provided in the lower pressing plate 13, the dust suction base 4 forms a dust suction cavity with the lower pressing plate 13, the first filter screen 14, the second filter screen 15 and the third filter screen 16 are fixed by the upper pressing plate 11 and the lower pressing plate 13, the air inside the third filter screen 16 is sent out by the rotation of the discharge fan 17, and then the external air enters the third filter screen 16 through the first filter screen 14 and the second filter screen 15, so as to realize multi-layer filtration of the air, and the first filter screen 14 on the outside is protected by the protective screen 12 during the air filtration process.

[0037] In the embodiment: the lifting assembly comprises two lifting frames 25 extending out of the upper pressing plate 11, the lower ends of the two lifting frames 25 are fixed at the top of the outer scraping frame 21, the middle scraping frame 22 and the inner scraping frame 23 respectively, the ends of the two lifting frames 25 away from each other are respectively provided with an electric push rod 24 for driving the lifting frames 25 to move up and down, the fixed ends of the two electric push rods 24 are fixed at the front and back of the upper pressing plate 11 and the lower pressing plate 13 respectively, the two lifting frames 25 are driven to move up and down synchronously by the extension or shortening of the telescopic parts of the two electric push rods 24, and the outer scraping frame 21, the middle scraping frame 22 and the inner scraping frame 23 are driven to move up and down along the sides of the first filter screen 14, the second filter screen 15 and the third filter screen 16 respectively.

[0038] Working principle: in use, first, the second filter screen 15 corresponding to the first filter screen 14 is driven to move down, at this time, the outer scraping frame 21, the middle scraping frame 22 and the inner scraping frame 23 are driven to move down by the two second filter screens 15, after the bottom of the outer scraping frame 21, the middle scraping frame 22 and the inner scraping frame 23 are attached to the top of the lower pressing plate 13, the air inside the third filter screen 16 is sent out by the rotation of the air outlet fan 17, and then the external air enters the third filter screen 16 through the first filter screen 14 and the second filter screen 15, so as to realize multi-layer filtration of the air, and the first filter screen 14 is protected by the protective net 12 during the air filtration process,

[0039] In addition, the outer scraping frame 21 and the rubber scraper of the inner ring cooperate with the outer side of the first filter screen 14 to form a first cleaning cavity, the rubber scrapers on both sides of the middle scraping frame 22 and the inner side of the first filter screen 14 and the outer side of the second filter screen 15 form a second cleaning cavity, and the rubber scrapers on both sides of the inner scraping frame 23 and the inner side of the second filter screen 15 and the outer side of the third filter screen 16 form a third cleaning cavity;

[0040] When the first filter screen 14, the second filter screen 15 and the third filter screen 16 are filtered for a period of time, the two electric push rods 24 are used to drive the two lifting frames 25 to move upward synchronously by extending or shortening the telescopic part, and the outer scraping frame 21, the middle scraping frame 22 and the inner scraping frame 23 are driven to move upward along the side of the first filter screen 14, the second filter screen 15 and the third filter screen 16, and the dust suction fan 5 is started to blow the air in the dust suction base 4 outwards, at this time, the corrugated pipes 34 are used to suck the air at the single brush plate 26, the first double brush plate 27 and the second double brush plate 28 into the dust suction base 4, in the process, the rotation of the air flow is used to drive the rotation impeller 32 to rotate, and the rotation impeller 32 is used to drive the rotating push ring 31 to rotate synchronously, the rotating push ring 31 is used to push the concave wedge plate 33 on the upper side of the rotating push ring 31 upwards, after the rotating push ring 31 rotates past the concave wedge plate 33, the single brush plate 26, the first double brush plate 27 and the second double brush plate 28 fall due to the gravity, and then the above operation is repeated, so that the single brush plate 26, the first double brush plate 27 and the second double brush plate 28 move up and down in the first cleaning cavity, the second cleaning cavity and the third cleaning cavity respectively, and the bristles of the single brush plate 26, the first double brush plate 27 and the second double brush plate 28 are used to brush and clean the inner and outer sides of the first filter screen 14, the inner and outer sides of the second filter screen 15 and the outer side of the third filter screen 16 respectively, and after the air in the first cleaning cavity, the second cleaning cavity and the third cleaning cavity is sucked into the dust suction base 4 through the six corrugated pipes 34, in the process, the dust generated by the single brush plate 26, the first double brush plate 27 and the second double brush plate 27 is sucked into the dust suction base 4, and the dust after cleaning is discharged downwards by the dust suction fan 5.

[0041] When the outer scraping frame 21, the middle scraping frame 22 and the inner scraping frame 23 are attached to the bottom of the upper pressing plate 11, the two electric push rods 24 are used to drive the lifting frames 25 to move downwards, and the rubber scraping blades of the three are used to scrape the residual dust on the inner and outer sides of the first filter screen 14, the inner and outer sides of the second filter screen 15 and the outer side of the third filter screen 16, and then the self-cleaning process of the first filter screen 14, the second filter screen 15 and the third filter screen 16 is completed.

[0042] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A multi-layer pleated self-cleaning air filter, comprising a filtering mechanism (1), the bottom of the filtering mechanism (1) is provided with a dust suction base (4), and the center of the dust suction base (4) is provided with a dust suction fan (5), characterized in that: Also include a scraping mechanism (2); The scraping mechanism (2) includes an outer scraping frame (21), the inner side of the outer scraping frame (21) is provided with a middle scraping frame (22), the inner side of the middle scraping frame (22) is provided with an inner scraping frame (23), the top of the outer scraping frame (21), the middle scraping frame (22) and the inner scraping frame (23) is provided with a lifting assembly, the inner side of the outer scraping frame (21) is slidably connected with a single brush plate (26), the inner side of the middle scraping frame (22) is slidably connected with a first double brush plate (27), the inner side of the inner scraping frame (23) is slidably connected with a second double brush plate (28), the bottom of the outer scraping frame (21), the middle scraping frame (22) and the inner scraping frame (23) is provided with two suction mechanisms (3); The suction mechanism (3) includes a rotating knob (31), the upper end of the rotating knob (31) is provided with two symmetrical concave wedge plates (33), the lower end of the rotating knob (31) is fixedly connected with a rotating impeller (32), the outer side of the rotating impeller (32) is sleeved with a corrugated pipe (34) for guiding dust into the inside of the dust suction base (4).

2. The multi-layer pleated self-cleaning air filter of claim 1, wherein: The inner ring of the outer scraping frame (21) and the inner and outer sides of the middle scraping frame (22) and the inner scraping frame (23) are provided with tooth-shaped rubber scraping plates.

3. The multi-stage pleated self-cleaning air filter of claim 1, wherein: The inner ring of the single brush plate (26) and the inner and outer sides of the first double brush plate (27) and the second double brush plate (28) are adhered with bristles.

4. The multi-stage pleated self-cleaning air filter of claim 1, wherein: The bottom of the outer scraping frame (21), the middle scraping frame (22) and the inner scraping frame (23) is provided with a through hole for rotating the rotating knob (31).

5. The multi-stage pleated self-cleaning air filter of claim 1, wherein: The filter mechanism (1) includes a protective net (12), the upper end of the protective net (12) is fixedly connected with an upper pressing plate (11), the lower end of the protective net (12) is fixedly connected with a lower pressing plate (13), the upper pressing plate (11) and the lower pressing plate (13) are fixedly connected with a first filter screen (14), a second filter screen (15) and a third filter screen (16), the third filter screen (16) is located inside the second filter screen (15), the second filter screen (15) is located inside the first filter screen (14), the top center of the upper pressing plate (11) is fixedly connected with an air outlet fan (17) for sending air out of the third filter screen (16).

6. The multi-stage pleated self-cleaning air filter of claim 5, wherein: The lower pressing plate (13) is provided with air guide holes for connecting six corrugated pipes (34).

7. The multi-stage pleated self-cleaning air filter of claim 5, wherein: The dust suction base (4) and the lower pressing plate (13) form a dust suction cavity.

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