CN220365661U - Detachable air prefilter - Google Patents
Detachable air prefilter Download PDFInfo
- Publication number
- CN220365661U CN220365661U CN202321789508.5U CN202321789508U CN220365661U CN 220365661 U CN220365661 U CN 220365661U CN 202321789508 U CN202321789508 U CN 202321789508U CN 220365661 U CN220365661 U CN 220365661U
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- China
- Prior art keywords
- disc
- filter disc
- filter screen
- filter
- air
- Prior art date
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- 238000011045 prefiltration Methods 0.000 title claims abstract description 16
- 239000000428 dust Substances 0.000 claims abstract description 56
- 238000001914 filtration Methods 0.000 claims abstract description 25
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 210000000078 claw Anatomy 0.000 abstract description 8
- 239000003570 air Substances 0.000 description 63
- 238000004140 cleaning Methods 0.000 description 11
- 238000009825 accumulation Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000012080 ambient air Substances 0.000 description 3
- 238000003915 air pollution Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a detachable air prefilter, which comprises a coarse filtration assembly, wherein the coarse filtration assembly comprises an upper coarse filtration disc and a lower coarse filtration disc, and the upper coarse filtration disc is upwards connected with an upper shell; two sides of the central tube below the lower coarse filter disc are respectively provided with an ash collecting cavity, and each ash collecting cavity is connected with the lower coarse filter disc in a buckling way through a claw upwards; the bottom end of the ash collecting cavity is higher than the bottom end of the central tube; the upper rough filter disc is provided with a plurality of inner pipes in interference fit through the mounting holes, the lower rough filter disc is provided with a plurality of outer pipes in interference fit through the mounting holes, the inner pipes correspond to the outer pipes one by one, and the outer surfaces of the inner pipes in the outer pipes are provided with impellers in interference fit; the inner pipe, the corresponding outer pipe and the corresponding impeller form a swirl pipe assembly; an air inlet filter screen is connected between the upper coarse filter disc and the lower coarse filter disc, is cylindrical and encloses the swirl tube assemblies. According to the utility model, the claw is used for conveniently disassembling and assembling the dust collecting cavity, and the butterfly nut is used for conveniently disassembling and assembling the air inlet filter screen, so that the accumulated dust can be conveniently and thoroughly cleaned.
Description
Technical Field
The utility model relates to the technical field of air filtration of motor vehicles.
Background
Engineering machinery and agricultural vehicles often work on occasions with large air pollution, and the working load of an air filter is large; if the prefilter function is not added, the service life of the air filter is greatly shortened, the air filter is required to be frequently maintained or replaced, the use cost is increased, and the air filter is inconvenient. Thus, the air prefilter becomes an indispensable device for such vehicles.
Most of air prefilters used in the current market are cyclone air prefilters, the prefilter efficiency is only about 70-80%, and the whole air prefilter is not detachable, so that maintenance and cleaning are relatively inconvenient; part of products adopt cyclone pipes to be arranged into a circular structure, the rough filtration efficiency is improved, but most of the products adopt a non-detachable dust collection cavity structure, and dust is cleaned through the side wall opening of the dust collection cavity; in the use environment of engineering machinery and agricultural machinery vehicles, the dust is polluted greatly, the dust accumulation speed in the dust collecting cavity is high, the dust in the dust collecting cavity is likely to harden, and the like, and the dust is difficult to clean in a mode of cleaning the dust through the side wall opening.
In addition, the air inlet filter screen of the existing prefilter is difficult to detach, dust is easy to adhere to the inner surface and the outer surface of the air inlet filter screen, even a blocking phenomenon occurs, and the air inlet filter screen is difficult to detach and inconvenient to clean.
Disclosure of Invention
The utility model aims to provide a detachable air prefilter which is convenient for cleaning deposited dust, and is suitable for motor vehicles with larger air pollution in working occasions such as engineering machinery, agricultural machinery vehicles and the like.
In order to achieve the above purpose, the detachable air prefilter of the utility model comprises a rough filtration component, wherein the rough filtration component comprises an upper rough filtration disk and a lower rough filtration disk, the upper rough filtration disk is upwards connected with an upper shell, and an air outlet cavity is enclosed between the upper shell and the upper rough filtration disk; the center of the upper coarse filter disc is connected with a central tube, the upper end of the central tube is communicated with the air outlet cavity, and the lower end of the central tube extends out of the lower coarse filter disc and is used for being communicated with an air inlet of an air filter of the motor vehicle; the upper coarse filter disc and the lower coarse filter disc are fixedly connected through a plurality of connecting rods;
two sides of the central tube below the lower coarse filter disc are respectively provided with an ash collecting cavity, and each ash collecting cavity is connected with the lower coarse filter disc in an upward buckling way; the bottom end of the ash collecting cavity is higher than the bottom end of the central tube;
the upper rough filter disc is provided with a plurality of inner pipes through the interference fit of the mounting holes, the lower rough filter disc is provided with a plurality of outer pipes through the interference fit of the mounting holes, the inner pipes correspond to the outer pipes one by one, and the inner pipes extend downwards into the middle upper parts of the corresponding outer pipes; the inner pipe is communicated with the air outlet cavity upwards, and the outer pipe is communicated with one of the two dust collecting cavities downwards; an impeller for guiding air is arranged on the outer surface of the inner tube in the outer tube in an interference fit manner;
the inner pipe, the corresponding outer pipe and the corresponding impeller form a swirl pipe assembly; an air inlet filter screen is connected between the upper coarse filter disc and the lower coarse filter disc, is cylindrical and encloses the swirl tube assemblies.
The horizontal sections of the upper shell and the air inlet filter screen are elliptical; the air inlet filter screen is surrounded by two semi-elliptic filter screen sheets.
One ends of the two filter screen pieces are hinged through a hinge structure, connecting plates are respectively arranged at the other ends of the two filter screen pieces, and the connecting plates of the two filter screen pieces are fixedly connected through butterfly nuts and screws.
The dust collecting cavity is a transparent structure made of transparent materials.
Each dust collection cavity is connected with the lower coarse filter disc through a clamping jaw in a clamping manner.
The utility model has the following advantages:
in the utility model, the ash collecting cavity is connected with the lower coarse filter disc in a clamping way through the clamping jaw, so that the ash collecting cavity is convenient to install or detach. When the dust collecting cavity is full, the claws are opened, the dust collecting cavity is taken down, and dust can be conveniently cleaned through the top opening (the area is far larger than the opening on the side wall and the sealing cover is not required to be arranged at the opening) of the dust collecting cavity.
When the prior air inlet filter screen is blocked, only the outer surface of the air inlet filter screen can be cleaned, the inner surface of the air inlet filter screen is difficult to clean, and the air inlet filter screen cannot be thoroughly cleaned. By using the utility model, the butterfly nut can be unscrewed to conveniently open the two filter screens by taking the hinge structure as the rotation center, so that the inner and outer surfaces of the air inlet filter screen can be conveniently and thoroughly cleaned, and the problem that the air inlet filter screen is blocked and difficult to clean when working in the occasion with large dust pollution is avoided. After cleaning, the butterfly nut can be screwed down to conveniently assemble the two filter screen sheets into a complete air inlet filter screen.
The dust collecting cavity is of a transparent structure, and workers can conveniently observe the dust accumulation condition in the dust collecting cavity, and timely detach the dust collecting cavity for thorough cleaning when the dust collecting cavity is full or about to be full of dust.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a view in the A-A direction of FIG. 1;
FIG. 3 is a B-B view of FIG. 2;
FIG. 4 is a schematic top view of the present utility model;
fig. 5 is a schematic perspective view of the present utility model.
Detailed Description
As shown in fig. 1 to 5, the detachable air prefilter of the present utility model comprises a coarse filtration assembly, the coarse filtration assembly comprises an upper coarse filtration disc 1 and a lower coarse filtration disc 2, the upper coarse filtration disc 1 is connected with an upper shell 4 upwards through a tapping screw 3, and an air outlet cavity 5 is defined between the upper shell 4 and the upper coarse filtration disc 1; the center of the upper coarse filter disc 1 is connected with a central tube 6, the upper end of the central tube 6 is communicated with the air outlet cavity 5, and the lower end of the central tube 6 extends out of the lower coarse filter disc 2 and is used for being communicated with an air inlet of an air filter of the motor vehicle through an interface 8; the upper coarse filter disc 1 is fixedly connected with the lower coarse filter disc 2 through a plurality of connecting rods 7;
two sides of the central tube 6 below the lower coarse filter disc 2 are respectively provided with an ash collecting cavity 9, and each ash collecting cavity 9 is connected with the lower coarse filter disc 2 in a buckling way through a claw 10; the bottom end of the ash collecting cavity 9 is higher than the bottom end of the central tube 6;
the upper coarse filter disc 1 is provided with a plurality of inner tubes 11 through the interference fit of the mounting holes, the lower coarse filter disc 2 is provided with a plurality of outer tubes 12 through the interference fit of the mounting holes, the inner tubes 11 are in one-to-one correspondence with the outer tubes 12, and the inner tubes 11 extend downwards into the middle upper parts of the corresponding outer tubes 12; the inner pipe 11 is communicated with the air outlet cavity 5 upwards, and the outer pipe 12 is communicated with one of the two ash collecting cavities 9 downwards; an impeller 13 for guiding air is arranged on the outer surface of the inner tube 11 inside the outer tube 12 in an interference fit manner;
the inner tube 11 and the corresponding outer tube 12 and the corresponding impeller 13 form a swirl tube assembly; the swirl tube assembly is provided in plurality at intervals between the upper coarse filter disc 1 and the lower coarse filter disc 2. An air inlet filter screen is connected between the upper coarse filter disk 1 and the lower coarse filter disk 2, is cylindrical and encloses the swirl tube assemblies.
In the utility model, the ash collecting cavity 9 is connected with the lower coarse filter disc 2 in a buckling way through the clamping jaw 10, so that the ash collecting cavity 9 is very convenient to install or detach. When the dust collecting cavity 9 is full, the claws 10 are opened, the dust collecting cavity 9 is removed, and the dust collecting cavity 9 can be cleaned conveniently through the top opening (the area is far larger than the opening on the side wall and a sealing cover is not required to be arranged at the opening) of the dust collecting cavity 9. Of course, the dust collecting cavity 9 is turned over firstly, dust is poured out, and then the adhesion hardening and non-pouring dust in the dust collecting cavity 9 are cleaned through the opening. After cleaning, the ash collecting cavity 9 is buckled on the lower coarse filter disc 2 through the clamping claw 10.
The horizontal sections of the upper shell 4 and the air inlet filter screen are elliptical; the air inlet filter screen is surrounded by two semi-elliptic filter screen sheets 15, one ends of the two filter screen sheets 15 are hinged through a hinge structure 16, the other ends of the two filter screen sheets 15 are respectively provided with a connecting plate 17, and the connecting plates 17 of the two filter screen sheets 15 are fixedly connected with a screw 19 through a butterfly nut 18.
When the prior air inlet filter screen is blocked, only the outer surface of the air inlet filter screen can be cleaned, the inner surface of the air inlet filter screen is difficult to clean, and the air inlet filter screen cannot be thoroughly cleaned. According to the utility model, the butterfly nut 18 can be unscrewed to conveniently open the two filter screen sheets 15 by taking the hinge structure 16 as the rotation center, so that the inner and outer surfaces of the air inlet filter screen can be conveniently and thoroughly cleaned, and the problem that the air inlet filter screen is blocked and difficult to clean when working in the occasion with large dust pollution is avoided. After cleaning, the wing nut 18 is tightened again to conveniently assemble the two filter sheets 15 into a complete air inlet filter.
The dust collection chamber 9 is a transparent structure made of a transparent material. The dust collecting cavity 9 is of a transparent structure, and workers can conveniently observe the dust accumulation condition in the dust collecting cavity, and timely detach the dust collecting cavity 9 for thorough cleaning when the dust collecting cavity is full or about to be full of dust.
When the motor vehicle provided with the utility model works, negative pressure at the engine is conducted to the air filter through the pipeline, and is conducted to the air outlet cavity 5 through the air inlet of the air filter and the central pipe 6 in the utility model, and then is conducted to the outer pipe 12 through the inner pipe 11, and is transmitted to the space between the upper coarse filter disc 1 and the lower coarse filter disc 2 through the gap between the inner pipe 11 and the outer pipe 12, and finally, the external ambient air is sucked in through the air inlet filter screen.
The ambient air is filtered at one stage when passing through the air inlet filter screen, and dust can be accumulated and adhered on the air inlet filter screen gradually. When dust adhesion on the air inlet filter screen is more and even local is blocked, a worker can unscrew the butterfly nut 18, open the two filter screen sheets 15 by taking the hinge structure 16 as a rotation center, conveniently and thoroughly clean the inner surface and the outer surface of the air inlet filter screen, unscrew the butterfly nut 18 after cleaning, and assemble the two filter screen sheets 15 into a complete air inlet filter screen.
When ambient air enters the outer tube 12 downwards through a gap between the inner tube 11 and the outer tube 12 (this is the prior art), a rotational flow is formed under the action of the flow guide (air guide) of the impeller 13, solid impurity particles (especially larger particles) in the air flow have larger inertia, and the solid impurity particles overcome the suction force on each negative pressure under the action of the inertia and enter the ash collecting cavity 9; under the action of negative pressure, the air flow except the large particles upwards enters the inner tube 11 and then enters the air outlet cavity 5, and finally is sent into the air filter through the central tube 6. The dust collecting cavity 9 is of a transparent structure, workers can conveniently observe the dust accumulation condition in the dust collecting cavity, when the dust collecting cavity is full or about to be full of dust, the claw 10 is opened in time to detach the dust collecting cavity 9 for thorough cleaning, and after the cleaning is finished, the claw 10 is used for clamping the dust collecting cavity 9 to the lower coarse filter disc 2.
The above embodiments are only for illustrating the technical solution of the present utility model, and it should be understood by those skilled in the art that although the present utility model has been described in detail with reference to the above embodiments: modifications and equivalents may be made thereto without departing from the spirit and scope of the utility model, which is intended to be encompassed by the claims.
Claims (5)
1. The detachable air prefilter comprises a coarse filtration assembly, wherein the coarse filtration assembly comprises an upper coarse filtration disc and a lower coarse filtration disc, the upper coarse filtration disc is upwards connected with an upper shell, and an air outlet cavity is formed between the upper shell and the upper coarse filtration disc in a surrounding manner; the center of the upper coarse filter disc is connected with a central tube, the upper end of the central tube is communicated with the air outlet cavity, and the lower end of the central tube extends out of the lower coarse filter disc and is used for being communicated with an air inlet of an air filter of the motor vehicle; the upper coarse filter disc and the lower coarse filter disc are fixedly connected through a plurality of connecting rods;
the method is characterized in that:
two sides of the central tube below the lower coarse filter disc are respectively provided with an ash collecting cavity, and each ash collecting cavity is connected with the lower coarse filter disc in an upward buckling way; the bottom end of the ash collecting cavity is higher than the bottom end of the central tube;
the upper rough filter disc is provided with a plurality of inner pipes through the interference fit of the mounting holes, the lower rough filter disc is provided with a plurality of outer pipes through the interference fit of the mounting holes, the inner pipes correspond to the outer pipes one by one, and the inner pipes extend downwards into the middle upper parts of the corresponding outer pipes; the inner pipe is communicated with the air outlet cavity upwards, and the outer pipe is communicated with one of the two dust collecting cavities downwards; an impeller for guiding air is arranged on the outer surface of the inner tube in the outer tube in an interference fit manner;
the inner pipe, the corresponding outer pipe and the corresponding impeller form a swirl pipe assembly; an air inlet filter screen is connected between the upper coarse filter disc and the lower coarse filter disc, is cylindrical and encloses the swirl tube assemblies.
2. The removable air pre-filter of claim 1, wherein: the horizontal sections of the upper shell and the air inlet filter screen are elliptical; the air inlet filter screen is surrounded by two semi-elliptic filter screen sheets.
3. The removable air pre-filter of claim 2, wherein: one ends of the two filter screen pieces are hinged through a hinge structure, connecting plates are respectively arranged at the other ends of the two filter screen pieces, and the connecting plates of the two filter screen pieces are fixedly connected through butterfly nuts and screws.
4. A removable air pre-filter according to any one of claims 1 to 3, wherein: the dust collecting cavity is a transparent structure made of transparent materials.
5. A removable air pre-filter according to any one of claims 1 to 3, wherein: each dust collection cavity is connected with the lower coarse filter disc through a clamping jaw in a clamping manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321789508.5U CN220365661U (en) | 2023-07-10 | 2023-07-10 | Detachable air prefilter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321789508.5U CN220365661U (en) | 2023-07-10 | 2023-07-10 | Detachable air prefilter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220365661U true CN220365661U (en) | 2024-01-19 |
Family
ID=89516805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321789508.5U Active CN220365661U (en) | 2023-07-10 | 2023-07-10 | Detachable air prefilter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220365661U (en) |
-
2023
- 2023-07-10 CN CN202321789508.5U patent/CN220365661U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |