CN212225418U - Cyclone self-cleaning air filter - Google Patents
Cyclone self-cleaning air filter Download PDFInfo
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- CN212225418U CN212225418U CN202021196916.6U CN202021196916U CN212225418U CN 212225418 U CN212225418 U CN 212225418U CN 202021196916 U CN202021196916 U CN 202021196916U CN 212225418 U CN212225418 U CN 212225418U
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Abstract
The utility model discloses a whirlwind self-cleaning air filter, which comprises an outer cover, a filter element assembly and a base, wherein the filter element assembly comprises an air inlet pipe, a filter element cover, a filter element, an air inlet cover and a filter element bracket; the outer cover is covered on the air inlet cover, the filter element bracket comprises a supporting tube, and a dust guide plate is sleeved at the lower part of the supporting tube; the lower part of the air inlet cover is provided with a plurality of dust exhaust holes around the periphery of the air inlet cover, the base is vertically provided with a connecting screw rod, and the upper end of the connecting screw rod sequentially penetrates through the supporting pipe, the air inlet pipe, the filter element cover and the outer cover from bottom to top and then is connected with a locking nut. The utility model discloses simple structure, the assembly is maintained conveniently, and dust removal effect is good, can clean, remove dust to empty filter self to have the dewatering function, long service life is and use cost hangs down.
Description
Technical Field
The utility model relates to an empty filter technical field especially relates to an empty filter of whirlwind formula automatically cleaning.
Background
An air filter is usually arranged in an air inlet system of the internal combustion engine, and air filtered by the air filter is conveyed into a combustion chamber of the internal combustion engine through a carburetor, so that impurities in the air are prevented from damaging moving parts in the combustion chamber, and the service life of the internal combustion engine is further prevented from being influenced.
The air filter that equipment such as fuel engine, locomotive and farming machinery used at present mostly includes: the filter comprises an air filter cover, a filter element combination (comprising an upper cover, a lower cover, filter element paper and a support net), a filter element support plate, a base and the like; in the working process, air enters the air filter base body from the air inlet, and enters the air supply channel on the engine base through the clean air outlet hole on the filter element supporting plate after being combined and filtered by the filter element, but dust sucked along with the air can be adhered to the filter element, the filtering efficiency of the filter element is easily reduced after a long time, the air intake is reduced, the combustion efficiency of the engine is reduced, the CO content in tail gas is higher, the air is polluted, and the environment is not protected; meanwhile, along with the increase of time, a large amount of dust can be accumulated between the filter element combination in the air filter and the air filter base body and cannot be discharged, and the normal work of the air filter can be influenced after long-term accumulation, so that the filter element needs to be cleaned frequently; after dust is adhered to the filter element, the filter element is troublesome to clean, so that the filter element is mostly directly replaced, but the use cost is increased. Moreover, most of the existing air filters only have the function of dust removal, can not effectively remove water vapor in the air, and also influence the normal work and the service life of the engine. In addition, the existing air filter has a complex structure, is inconvenient to assemble and maintain and also causes troubles to use.
SUMMERY OF THE UTILITY MODEL
Not enough to the above-mentioned that exists to prior art, the utility model discloses an it is poor to solve current empty filter dust removal effect, can not remove dust to empty filter self, and dewatering effect is poor, and life is short, and use cost is high, and inconvenient problem is maintained in the assembly, provides the empty filter of whirlwind formula automatically cleaning, can effectively solve above-mentioned technical problem.
In order to solve the technical problem, the utility model discloses a technical scheme is like this: the utility model provides an empty filter of whirlwind formula automatically cleaning, includes dustcoat, filter element subassembly and base, its characterized in that: the filter element assembly comprises an air inlet pipe, a filter element cover, a filter element, an air inlet cover and a filter element support, wherein the filter element cover is of a structure with the upper end closed and the lower end open;
the air inlet cover is of a circular ring structure and is sleeved outside the filter element cover; the upper part of the air inlet cover is connected with the upper part of the filter element cover through a plurality of air deflectors, and a cyclone filter cavity is formed between the air inlet cover and the filter element cover; the air deflector is distributed around the filter element cover in a circle, two sides of the air deflector are respectively fixedly connected with the filter element cover and the air inlet cover, and one end of the air deflector corresponding to the air deflector inclines downwards; the adjacent ends of the two adjacent air deflectors are distributed in a vertically staggered manner, and the projections of the two adjacent air deflectors on the horizontal plane have overlapped parts, so that an air inlet channel with one end inclined downwards is formed between the two adjacent air deflectors;
the outer cover is also of a structure with the upper end closed and the lower end open, the outer cover is covered on the air inlet cover, the inner side of the upper end of the outer cover is provided with a positioning ring, and the outer cover is supported at the upper end of the filter element cover through the positioning ring; gaps are formed between the side wall of the outer cover and the air inlet cover to form a gravity filter cavity, and gaps are formed between the upper end of the outer cover, at least the upper end of the air inlet cover and the air deflector to enable air to enter the air inlet channel after passing through the gravity filter cavity;
the filter element bracket comprises a supporting pipe, the upper end of the supporting pipe extends into the lower end of the air inlet pipe and is detachably connected with the air inlet pipe, and the lower end of the supporting pipe is detachably connected with the base; the lower part of the supporting tube is sleeved with a dust guide plate, the inner side of the dust guide plate is fixedly connected with the supporting tube, the outer side of the dust guide plate inclines downwards and extends outwards to the outer side of the air inlet cover, and a gap is formed between the lower end of the outer cover and the dust guide plate; the lower end of the air inlet cover is tightly attached to the dust guide plate, a plurality of dust exhaust holes are formed in the lower portion of the air inlet cover around the periphery of the air inlet cover, the dust exhaust holes penetrate through the lower end of the air inlet cover, and the dust outlet direction of the dust exhaust holes is tangential to the inner wall of the air inlet cover and is consistent with the air inlet direction of the air inlet channel;
a connecting screw rod is vertically arranged on the base, the upper end of the connecting screw rod sequentially penetrates through the supporting tube, the air inlet tube, the filter element cover and the outer cover from bottom to top and then is connected with a locking nut, and the base, the supporting tube, the air inlet tube, the filter element cover and the outer cover are fastened together through the matching of the locking nut and the connecting screw rod; the base is provided with a filtered gas channel, one end of the filtered gas channel is communicated with the lower end of the supporting tube, and the other end of the filtered gas channel is used for outputting filtered gas.
Furthermore, a plurality of cyclone resistance baffles are arranged around the lower outer side of the supporting tube; the cyclone resistance baffle is vertically arranged, one side of the cyclone resistance baffle is connected with the supporting tube, the other side of the cyclone resistance baffle extends towards the side wall of the air inlet cover, the lower side of the cyclone resistance baffle is connected with the dust guide plate, and the upper side of the cyclone resistance baffle is tightly attached to the lower side of the filter element.
Further, the filter core includes coarse filter element and essence filter element, just essence filter element is located the coarse filter element top, wherein, the upside of coarse filter element is located the below of the inlet port downside of intake pipe, and the upside of essence filter element is located the below of the inlet port upside of intake pipe.
Furthermore, the coarse filter element and the fine filter element both adopt foam filter elements.
Furthermore, a limiting step is formed on the inner side of the lower portion of the air inlet pipe, the diameter of the upper portion of the supporting pipe is reduced and then the supporting pipe extends into the air inlet pipe, and the upper end of the supporting pipe is tightly attached to the limiting step.
Furthermore, the upper end of the filter element cover is provided with an annular positioning convex edge corresponding to the positioning ring; the lower side of the inner wall of the positioning ring is provided with a positioning groove corresponding to the positioning convex edge, and the positioning ring is sleeved on the positioning convex edge through the positioning groove.
Furthermore, a plurality of limiting plates are arranged at the upper end of the air inlet cover around the air inlet cover, the upper ends of the limiting plates extend to be attached to the upper end of the outer cover, and a space is reserved between every two adjacent limiting plates.
Furthermore, a plurality of positioning plates which are vertically arranged are arranged on the dust guide plate and close to the periphery of the dust guide plate around the periphery of the dust guide plate, and the positioning plates are arranged along the radial direction of the dust guide plate; the lower end of the outer cover is attached to the positioning plate.
Compared with the prior art, the utility model has the advantages of as follows:
1. simple structure, convenient assembling, dustcoat, filter element cover, intake pipe, stay tube and base pass through connecting screw and lock nut fastening connection to it is more convenient to make whole dismouting, and is swift, the maintenance of the whole empty filter of being more convenient for.
2. The whole air inlet process forms multi-stage dust removal through gravity dust removal, cyclone dust removal and filter element dust removal (including coarse filter element and fine filter element dust removal), so that the dust removal effect of the air filter can be greatly improved, and the air inlet quality of an engine is effectively improved.
3. The dust falling under the action of gravity in the cyclone dust removal cavity and the dust blocked by the filter element move to the edge of the dust guide plate along the dust guide plate, and after moving to be attached to the inner wall of the air inlet cover, the dust is discharged out of the air inlet cover through the dust discharge hole under the action of cyclone (spiral airflow), so that the automatic cleaning and dust removal of the air filter are realized, and the service life of the air filter can be greatly prolonged; simultaneously, the steam that gets into the inlet hood along with gas under the effect of whirlwind (spiral air current), collides and adheres on the inlet hood lateral wall with the inlet hood lateral wall, finally moves down and discharges the inlet hood through the dust exhaust hole to effectively increased the dewatering effect of empty filter, can further improve the quality of admitting air of engine.
4. Dismantle the back with empty filter, can easily take out the filter core, then can carry out cleaning to the filter core through modes such as vibration, washing, make the filter core can used repeatedly to greatly reduced the use cost of whole empty filter.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a sectional view taken along a line a-a in fig. 1.
Fig. 3 is a cross-sectional view taken along line B-B of fig. 2.
Fig. 4 is a top view of the utility model with the cover removed.
The direction indicated by the arrows in the figure is the gas flow direction.
In the figure: the device comprises an outer cover 1, a base 2, an air inlet pipe 3, a filter element cover 4, a coarse filter element 51, a fine filter element 52, an air inlet cover 6, a support pipe 71, a dust guide plate 72, an air deflector 8, an air inlet channel 9, a positioning ring 10, a dust discharge hole 11, a connecting screw rod 12, a cyclone resistance baffle 13, a positioning convex edge 14, a limiting plate 15 and a positioning plate 16.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example (b): referring to fig. 1 to 4, a cyclone-type self-cleaning air filter includes a housing 1, a filter cartridge assembly, and a base 2. The filter element assembly comprises an air inlet pipe 3, a filter element cover 4, a filter element, an air inlet cover 6 and a filter element support. The filter element cover 4 is of a structure with the upper end closed and the lower end open, the air inlet pipe 3 is vertically arranged in the filter element cover 4, and the upper end of the air inlet pipe is fixedly connected with the upper end of the filter element cover 4. Form the filter core mounting groove between this intake pipe 3 and filter core cover 4, the filter core is installed in this filter core mounting groove. The upper part of the air inlet pipe 3 is also provided with a plurality of air inlet holes around the circumference. Wherein, the filter core includes coarse filter element 51 and fine filter element 52, just fine filter element 52 is located coarse filter element 51 top, wherein, coarse filter element 51's upside is located the below of the inlet port downside of intake pipe 3, and fine filter element 52's upside is located the below of the inlet port upside of intake pipe 3. Therefore, the gas is filtered and dedusted through the two-stage filter element, and the dedusting effect of the gas can be further improved. In the practical process, foam filter elements are adopted in the rough filter element 51 and the fine filter element 52, so that the filter elements can be conveniently disassembled and assembled, and the filter elements can be conveniently cleaned, and the use cost of the whole air filter can be effectively reduced.
The air inlet cover 6 is of a circular ring structure and is sleeved outside the filter element cover 4; the upper part of the air inlet cover 6 is connected with the upper part of the filter element cover 4 through a plurality of air deflectors 8, and a cyclone filter cavity is formed between the air inlet cover and the filter element cover 4. The air deflectors 8 are distributed around the filter element cover 4 in a circle, two sides of the air deflectors are fixedly connected with the filter element cover 4 and the air inlet cover 6 respectively, and one end, corresponding to each air deflector 8, of each air deflector is inclined downwards; the adjacent ends of the two adjacent air deflectors 8 are distributed in a vertically staggered manner, and the projections of the two adjacent air deflectors 8 on the horizontal plane have overlapped parts, so that an air inlet channel 9 with one end inclined downwards is formed between the two adjacent air deflectors 8. By adopting the scheme, when the gas enters the gas inlet hood 6 through the gas inlet channel 9, the gas has a downward inclined angle, so that the gas can enter the cyclone filter cavity along the tangential direction of the cyclone filter cavity and obliquely downwards, and the gas forms spiral gas flow (namely generates cyclone) after entering the cyclone filter cavity. Meanwhile, after the gas enters the cyclone filter cavity, the dust collides with the side wall of the gas inlet hood 6 under the action of the airflow and then falls along the side wall of the gas inlet hood 6 under the action of gravity, so that the dust removal effect is effectively achieved; meanwhile, the water vapor in the gas is driven by the airflow to collide with the side wall of the gas inlet cover 6 and adhere to the side wall of the gas inlet cover 6, and then falls under the action of gravity, so that the water is effectively removed by the gas.
The outer cover 1 is also of a structure with a closed upper end and an open lower end, the outer cover 1 covers the air inlet cover 6, a positioning ring 10 is arranged on the inner side of the upper end of the outer cover 1, and the outer cover 1 is supported at the upper end of the filter element cover 4 through the positioning ring 10. Gaps are formed between the side wall of the outer cover 1 and the air inlet cover 6 to form a gravity filter cavity, and gaps are formed between the upper end of the outer cover 1 and at least the upper end of the air inlet cover 6 and the air deflector 8 to enable air to enter the air inlet channel 9 after passing through the gravity filter cavity. In the scheme, a gravity filter cavity is formed between the side wall of the outer cover 1 and the side wall of the air inlet cover 6, and air enters from the lower end of the gravity filter cavity, then flows out from the upper end of the gravity filter cavity and then enters the air inlet channel 9; in the process, the dust falls under the action of gravity, so that the heavier dust cannot enter the air inlet channel 9, and the effect of primary dust removal is effectively achieved. In the processing process, the upper end of the filter element cover 4 is provided with an annular positioning convex edge 14 corresponding to the positioning ring 10; a positioning groove corresponding to the positioning ledge 14 is formed on the lower side of the inner wall of the positioning ring 10, and the positioning ring 10 is sleeved on the positioning ledge 14 through the positioning groove. Thus, the outer cover 1 can be quickly positioned and assembled, and the assembly efficiency is effectively improved. A plurality of limiting plates 15 are arranged at the upper end of the air inlet cover 6 around the periphery of the air inlet cover, the upper ends of the limiting plates 15 extend to be attached to the upper end of the outer cover 1, and a space is reserved between every two adjacent limiting plates 15; through setting up limiting plate 15, can guarantee to have sufficient distance between dustcoat 1 upper end and the inlet hood 6 upper end to guarantee intake efficiency and air input.
The filter element support comprises a support pipe 71, the upper end of the support pipe 71 extends into the lower end of the air inlet pipe 3 and is detachably connected with the air inlet pipe 3, and the lower end of the support pipe is detachably connected with the base 2. A limiting step is formed on the inner side of the lower part of the air inlet pipe 3, the upper part of the supporting pipe 71 is reduced in diameter and then extends into the air inlet pipe 3, and the upper end of the supporting pipe is tightly attached to the limiting step; this enables quick assembly and positioning of the intake pipe 3 and the support pipe 71, contributing to further improvement in assembly efficiency. In specific implementation, a sealing step is formed on the outer wall of the supporting tube 71, the sealing step is located below the lower end of the air inlet tube 3, a first sealing ring (section sealing ring) is arranged between the lower end of the air inlet tube 3 and the sealing step, and the first sealing ring is sleeved on the supporting tube 71 to seal a gap between the lower end of the air inlet tube 3 and the sealing step, so that dust is prevented from entering the air inlet tube 3 through the gap. A dust guide plate 72 is sleeved at the lower part of the support pipe 71, the inner side of the dust guide plate 72 is fixedly connected with the support pipe 71, and the outer side of the dust guide plate 72 inclines downwards and extends outwards to the outer side of the air inlet hood 6; wherein, a gap is arranged between the lower end of the outer cover 1 and the dust guide plate 72; to ensure that gas can enter the housing 1 from the gap and thus enter the inlet hood 6 via the inlet duct 9. A plurality of positioning plates 16 which are vertically arranged are arranged on the dust guide plate 72 and close to the periphery of the dust guide plate around the periphery of the dust guide plate, and the positioning plates 16 are arranged along the radial direction of the dust guide plate 72; the lower end of the outer cover 1 is attached to the positioning plate 16; thus, it is possible to ensure a sufficient gap between the lower end of the housing 1 and the dust guide plate 72, thereby ensuring the intake air amount and the intake efficiency. The lower end of the air inlet cover 6 is tightly attached to the dust guide plate 72, a plurality of dust exhaust holes 11 are formed in the lower portion of the air inlet cover 6 around the periphery of the air inlet cover, the lower sides of the dust exhaust holes 11 penetrate through the lower end of the air inlet cover 6, and the dust outlet direction of the dust exhaust holes 11 is tangent to the inner wall of the air inlet cover 6 and is consistent with the air inlet direction of the air inlet channel 9. In this way, in the cyclone dust removal cavity, dust falling under the action of gravity moves to the edge of the dust guide plate 72 along the dust guide plate 72, and after moving to be attached to the inner wall of the air inlet cover 6, the dust is discharged out of the air inlet cover 6 through the dust discharge holes 11 under the action of cyclone (spiral airflow), so that the automatic cleaning and dust removal of the air filter are realized, and the service life of the air filter can be greatly prolonged; and water vapor is also discharged out of the air inlet cover 6 through the dust exhaust hole 11 under the action of cyclone (spiral airflow), so that the water removal effect of the air filter is effectively improved, and the air inlet quality of the engine can be further improved.
In the specific implementation process, a plurality of cyclone resistance baffles 13 are arranged around the lower outer side of the supporting pipe 71; the cyclone resistance baffle 13 is vertically arranged, one side of the cyclone resistance baffle is connected with the supporting pipe 71, the other side of the cyclone resistance baffle extends towards the side wall of the air inlet cover 6, the lower side of the cyclone resistance baffle is connected with the dust guide plate 72, and the upper side of the cyclone resistance baffle is tightly attached to the lower side of the filter element. Therefore, the dust blocked by the filter element falls between two adjacent cyclone resistance baffles 13 after falling, and the falling dust cannot rotate along with the airflow due to the existence of the cyclone resistance baffles 13, so that the dust is prevented from influencing the flow of the air; meanwhile, under the action of the spiral airflow, dust also falls onto the dust guide plate under the action of gravity after impacting the cyclone resistance baffle 13, so that the dust removal effect is further improved; only when the dust moves to the outer side of the cyclone resistance baffle 13 along the dust guide plate 72, the dust can move under the driving of the airflow, and under the action of the airflow, the dust moves to the edge of the dust guide plate 72 and then is discharged out of the air inlet cover 6 through the dust discharge hole 11. Moreover, because vibration exists all the time during the working process of the engine, dust in the filter element (the rough filter element 51 and the fine filter element 52) falls under the action of vibration, so that the filter element is further cleaned automatically, and the fallen dust firstly falls between two adjacent cyclone resistance baffles 13, then moves to the edge of the dust guide plate 72 and is finally discharged through the dust discharge hole 11; thereby improving the dust removal and automatic cleaning effects of the whole air filter.
A connecting screw rod 12 is vertically arranged on the base 2, and the upper end of the connecting screw rod 12 sequentially penetrates through the supporting pipe 71, the air inlet pipe 3, the filter element cover 4 and the outer cover 1 from bottom to top and then is connected with a locking nut; the base 2, the supporting tube 71, the air inlet tube 3, the filter element cover 4 and the outer cover 1 are fastened together through the matching of the locking nut and the connecting screw rod 12; therefore, the whole air filter is more convenient and quicker to disassemble and assemble and is more convenient to maintain. The base 2 has a filtered gas passage having one end communicating with the lower end of the support pipe 71 and the other end for outputting filtered gas. In the actual processing process, a second sealing ring is arranged between the upper end of the air inlet hood 6 and the screw rod, and the second sealing ring seals a gap between the upper end of the air inlet hood 6 and the screw rod; thereby preventing dust from entering the air inlet pipe 3 from the gap between the upper end of the air inlet cover 6 and the screw. This scheme is through the cooperation of second sealing washer with first sealing washer, and is sealed intake pipe 3 upper end and stay tube 71 lower extreme to improve the inside leakproofness of intake pipe 3 in the whole filter element group spare greatly, in order effectively to prevent that the dust from getting into intake pipe 3 in these clearances.
In the actual course of working, dustcoat, air inlet cover, filter core cover and intake pipe and the equal barrel axial lead of stay tube are established, and wherein, air inlet cover, filter core cover and intake pipe are as an organic whole through injection moulding, like this, can effectively improve the homogeneity of admitting air to and the stability of structure.
In the use, the empty filter that this scheme provided can directly link to each other with oil bath room, carburetor or other empty filter interfaces through the output that filters the gas passageway on the base 2 to make overall structure compacter.
The specific dust removal process of the air filter disclosed by the scheme is as follows:
a mixed gas of a class silt and slag enters through a gap between the lower end of the outer cover 1 and the dust guide plate 72, and the mixed gas is changed into a mixed gas of b class silt and slag after removing heavier silt and slag through a gravity filter chamber under the action of gravity;
2, the mixed gas of b-type silt-containing slag enters a cyclone filter cavity to form spiral airflow, a part of silt slag is discharged out of the air filter through a dust discharge hole 11 under the action of cyclone inertia force, and the mixed gas is changed into c-type silt-containing slag mixed gas; the other part of the lighter sediment continues to flow under the action of the negative pressure of the engine until the sediment contacts the coarse foam filter element and impacts the cyclone resistance baffle 13, then falls onto the dust guide plate under the action of gravity, moves along the dust guide plate 72 under the vibration of the engine, and then is discharged out of the air filter through the dust discharge hole 11 under the action of cyclone; the mixed gas becomes c-type mud-containing sand slag mixed gas; thereby well and automatically removing silt and slag in the mixed gas;
the c-type mud-sand-containing slag mixed gas continues to pass through the coarse foam filter element and then is changed into d-type mud-sand-containing slag mixed gas;
and 4, filtering the d-type silt-containing slag mixed gas by using a fine foam filter element to remove silt and slag, and changing the d-type silt and slag mixed gas into pure air (which is nearly pure or meets the requirement), thereby finally achieving the filtering effect.
The utility model discloses whole process of admitting air removes dust through gravity, cyclone, filter core (including coarse filter element 51 and fine filter element 52 dust removal), forms multistage dust removal to can improve the dust removal effect of empty filter greatly, effectively improve the quality of admitting air of engine. Simultaneously, dismantle the back with empty filter, can easily take out the filter core, then can carry out cleaning process to the filter core through modes such as vibration, washing, make the filter core can used repeatedly to greatly reduced the use cost of whole empty filter.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.
Claims (8)
1. The utility model provides an empty filter of whirlwind formula automatically cleaning, includes dustcoat, filter element subassembly and base, its characterized in that: the filter element assembly comprises an air inlet pipe, a filter element cover, a filter element, an air inlet cover and a filter element support, wherein the filter element cover is of a structure with the upper end closed and the lower end open;
the air inlet cover is of a circular ring structure and is sleeved outside the filter element cover; the upper part of the air inlet cover is connected with the upper part of the filter element cover through a plurality of air deflectors, and a cyclone filter cavity is formed between the air inlet cover and the filter element cover; the air deflector is distributed around the filter element cover in a circle, two sides of the air deflector are respectively fixedly connected with the filter element cover and the air inlet cover, and one end of the air deflector corresponding to the air deflector inclines downwards; the adjacent ends of the two adjacent air deflectors are distributed in a vertically staggered manner, and the projections of the two adjacent air deflectors on the horizontal plane have overlapped parts, so that an air inlet channel with one end inclined downwards is formed between the two adjacent air deflectors;
the outer cover is also of a structure with the upper end closed and the lower end open, the outer cover is covered on the air inlet cover, the inner side of the upper end of the outer cover is provided with a positioning ring, and the outer cover is supported at the upper end of the filter element cover through the positioning ring; gaps are formed between the side wall of the outer cover and the air inlet cover to form a gravity filter cavity, and gaps are formed between the upper end of the outer cover, at least the upper end of the air inlet cover and the air deflector to enable air to enter the air inlet channel after passing through the gravity filter cavity;
the filter element bracket comprises a supporting pipe, the upper end of the supporting pipe extends into the lower end of the air inlet pipe and is detachably connected with the air inlet pipe, and the lower end of the supporting pipe is detachably connected with the base; the lower part of the supporting tube is sleeved with a dust guide plate, the inner side of the dust guide plate is fixedly connected with the supporting tube, the outer side of the dust guide plate inclines downwards and extends outwards to the outer side of the air inlet cover, and a gap is formed between the lower end of the outer cover and the dust guide plate; the lower end of the air inlet cover is tightly attached to the dust guide plate, a plurality of dust exhaust holes are formed in the lower portion of the air inlet cover around the periphery of the air inlet cover, the dust exhaust holes penetrate through the lower end of the air inlet cover, and the dust outlet direction of the dust exhaust holes is tangential to the inner wall of the air inlet cover and is consistent with the air inlet direction of the air inlet channel;
a connecting screw rod is vertically arranged on the base, the upper end of the connecting screw rod sequentially penetrates through the supporting tube, the air inlet tube, the filter element cover and the outer cover from bottom to top and then is connected with a locking nut, and the base, the supporting tube, the air inlet tube, the filter element cover and the outer cover are fastened together through the matching of the locking nut and the connecting screw rod; the base is provided with a filtered gas channel, one end of the filtered gas channel is communicated with the lower end of the supporting tube, and the other end of the filtered gas channel is used for outputting filtered gas.
2. A cyclonic self-cleaning air filter as claimed in claim 1, wherein: a plurality of cyclone resistance baffles are arranged around the lower outer side of the supporting tube; the cyclone resistance baffle is vertically arranged, one side of the cyclone resistance baffle is connected with the supporting tube, the other side of the cyclone resistance baffle extends towards the side wall of the air inlet cover, the lower side of the cyclone resistance baffle is connected with the dust guide plate, and the upper side of the cyclone resistance baffle is tightly attached to the lower side of the filter element.
3. A cyclonic self-cleaning air filter as claimed in claim 1, wherein: the filter core includes coarse filter element and essence filter element, just essence filter element is located the coarse filter element top, wherein, the upside of coarse filter element is located the below of the inlet port downside of intake pipe, and the upside of essence filter element is located the below of the inlet port upside of intake pipe.
4. A cyclonic self-cleaning air filter as claimed in claim 3, wherein: the coarse filter element and the fine filter element are both foam filter elements.
5. A cyclonic self-cleaning air filter as claimed in claim 1, wherein: the inner side of the lower part of the air inlet pipe is formed with a limiting step, the diameter of the upper part of the supporting pipe is reduced and then extends into the air inlet pipe, and the upper end of the supporting pipe is tightly attached to the limiting step.
6. A cyclonic self-cleaning air filter as claimed in claim 1, wherein: the upper end of the filter element cover is provided with an annular positioning convex edge corresponding to the positioning ring; the lower side of the inner wall of the positioning ring is provided with a positioning groove corresponding to the positioning convex edge, and the positioning ring is sleeved on the positioning convex edge through the positioning groove.
7. A cyclonic self-cleaning air filter as claimed in claim 1, wherein: and a plurality of limiting plates are arranged at the upper end of the air inlet cover around the air inlet cover, the upper ends of the limiting plates extend to be attached to the upper end of the outer cover, and a space is reserved between every two adjacent limiting plates.
8. A cyclonic self-cleaning air filter as claimed in claim 1, wherein: a plurality of positioning plates which are vertically arranged are arranged on the dust guide plate and close to the periphery of the dust guide plate around the periphery of the dust guide plate, and the positioning plates are arranged along the radial direction of the dust guide plate; the lower end of the outer cover is attached to the positioning plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021196916.6U CN212225418U (en) | 2020-06-24 | 2020-06-24 | Cyclone self-cleaning air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021196916.6U CN212225418U (en) | 2020-06-24 | 2020-06-24 | Cyclone self-cleaning air filter |
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| Publication Number | Publication Date |
|---|---|
| CN212225418U true CN212225418U (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021196916.6U Active CN212225418U (en) | 2020-06-24 | 2020-06-24 | Cyclone self-cleaning air filter |
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| CN (1) | CN212225418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870524A (en) * | 2022-05-18 | 2022-08-09 | 佛山市顺德区奥格威电器制造有限公司 | Dust collecting equipment based on self-cleaning function design |
-
2020
- 2020-06-24 CN CN202021196916.6U patent/CN212225418U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870524A (en) * | 2022-05-18 | 2022-08-09 | 佛山市顺德区奥格威电器制造有限公司 | Dust collecting equipment based on self-cleaning function design |
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