CN216198552U - Air filter structure - Google Patents
Air filter structure Download PDFInfo
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- CN216198552U CN216198552U CN202122716783.1U CN202122716783U CN216198552U CN 216198552 U CN216198552 U CN 216198552U CN 202122716783 U CN202122716783 U CN 202122716783U CN 216198552 U CN216198552 U CN 216198552U
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- filter
- box body
- air
- filter element
- box cover
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Abstract
The utility model discloses an air filter structure, which comprises a first filter and a second filter, wherein the first filter is connected with the second filter; the first filter and the second filter are connected; the first filter comprises a first box body, a first filter element and a first box cover, the first box cover is buckled on the first box body, and the first filter element is positioned between the first box body and the first box cover; the first box body is connected with the second filter, and a through hole for communicating the first box body with the second filter is arranged at the joint of the first box body and the second filter; an air inlet is arranged below the first box cover close to the first filter element side, and the lower end of the first box cover extends downwards to form a wind shield. The utility model has simple assembly, shortens the assembly time, saves the assembly space, effectively reduces the dust entering the air filter and prolongs the service life of the air filter.
Description
Technical Field
The utility model relates to the technical field of engines, in particular to an air filter structure.
Background
The air filter (commonly called as an air filter) has the functions of preventing sand particles and dust from flowing into an air inlet system of the engine, protecting a cylinder, a piston and a piston ring of the engine, prolonging the service life of the engine, fully combusting fuel oil of the engine, avoiding the abrasion of the dust to the engine, further ensuring the effective exertion of the power of the engine and the prolonging of the service life, and simultaneously reducing the pollution to the environment.
Currently, engines generally use a two-stage air filter, i.e., air is filtered and purified by two independent air filters, which are located at different positions on the engine. However, the two-stage air filter improves the assembly time, occupies a large assembly space, and dust is easily introduced into the air inlet of the air filter in the prior art, so that the service life of the air filter is shortened.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems, the utility model provides the air filter structure which is simple to assemble, shortens the assembling time, saves the assembling space, effectively reduces the dust entering the air filter and prolongs the service life of the air filter.
The utility model provides an air filter structure, which comprises a first filter and a second filter;
the first filter and the second filter are connected;
the first filter comprises a first box body, a first filter element and a first box cover, the first box cover is buckled on the first box body, and the first filter element is positioned between the first box body and the first box cover; the first box body is connected with the second filter, and a through hole for communicating the first box body with the second filter is arranged at the joint of the first box body and the second filter; an air inlet is arranged below the first box cover close to the first filter element side, and the lower end of the first box cover extends downwards to form a wind shield.
Preferably, the first box body is provided with a first cavity with one open side, the first box cover is used for blocking the open side of the first cavity, and the through hole is communicated with the first cavity and the second filter; a first annular step is arranged on the side, close to the first box body, of the first cavity, and the first filter element is clamped on the first annular step;
the first box cover is provided with a first annular supporting plate, a second annular step is arranged in the first annular supporting plate, and the side, close to the first box cover, of the first filter element is clamped on the second annular step.
Preferably, the lower end of the first annular support plate is provided with an air inlet.
Preferably, a plurality of first reinforcing rib plates which are arranged at equal intervals are arranged at the air inlet.
Preferably, a plurality of cross columns for supporting the first filter element are arranged in the first box cover.
Preferably, a plurality of first support plates and second support plates for supporting the first filter element are arranged in the first chamber, and the first support plates and the second support plates are arranged oppositely.
Preferably, the second filter comprises a second box body, a second filter element and a second box cover, the second box cover is buckled on the second box body, and the second filter element is positioned between the second box body and the second box cover; the second box body is connected with the first box body and provided with a second chamber, and the through hole is communicated with the first chamber and the second chamber; a third annular step is arranged on the side, close to the second box body, of the second cavity, and the second filter element is clamped on the third annular step; the second box cover is provided with a second annular supporting plate, and one side, close to the second box body, of the second annular supporting plate is pressed on the second filter element.
Preferably, a first air outlet is formed in the upper end of the second annular supporting plate, and a plurality of second reinforcing rib plates are arranged in the first air outlet.
Preferably, the second box body is provided with a second air outlet for inputting filtered air into the engine, the second air outlet and the second chamber are arranged up and down, and the first air outlet is positioned between the second air outlet and the second chamber.
Preferably, the first filter element adopts a foam filter element and the second filter element adopts a paper filter element.
The utility model has the following beneficial effects:
according to the technical scheme, the first filter and the second filter form an integrated structure, a split structure is abandoned, two air filters are prevented from being arranged at different positions of an engine, and the first filter and the second filter form an integrated structure, so that the transfer is simplified, the assembly time is shortened, and the assembly space is saved; simultaneously, air inlet 131 sets up on first lid, and the air inlet sets up downwards moreover, and in addition the design of deep bead for the air gets into between first filter core and the first lid from the below of first lid, and the impurity of big granule can not get into first filter under the influence of gravity in the air current of admitting air, thereby has reduced the dust effectively and has got into empty filter, has improved filtration efficiency, has prolonged the life of empty filter.
Drawings
FIG. 1 is a perspective view of one embodiment of the present invention;
FIG. 2 is a perspective view of a first cartridge side in accordance with one embodiment of the present invention;
FIG. 3 is a perspective view of the first chamber side in an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of the first cover according to an embodiment of the present invention;
FIG. 5 is a perspective view of the second filter element side in one embodiment of the present invention;
FIG. 6 is a perspective view of the second chamber side in accordance with one embodiment of the present invention;
fig. 7 is a schematic structural diagram of a second cover according to an embodiment of the utility model.
Reference numerals:
1-a first filter, 11-a first box body, 111-a through hole, 112-a first chamber, 113-a first annular step, 114-a first support plate, 115-a second support plate, 12-a first filter element, 13-a first box cover, 131-an air inlet, 132-an air baffle, 133-a first annular support plate, 134-a second annular step, 135-a first reinforcing rib plate, 136-a cross column, 2-a second filter, 21-a second box body, 211-a second chamber, 212-a third annular step, 22-a second filter element, 23-a second box cover, 231-a second annular support plate, 232-a first air outlet, 233-a second reinforcing rib plate, 24-a second air outlet.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 7, the present embodiment provides an air filter structure, which includes a first filter 1 and a second filter 2; the first filter 1 and the second filter 2 are connected. The first filter 1 comprises a first box body 11, a first filter element 12 and a first box cover 13, wherein the first box cover 11 is buckled on the first box body 13, and the first filter element 12 is positioned between the first box body 11 and the first box cover 13. The first box body 11 is connected with the second filter 2, and a through hole 111 for communicating the first box body 11 with the second filter 2 is arranged at the joint of the first box body 11 and the second filter 2. An air inlet 131 is arranged below the first cover 13 close to the first filter element, and the lower end of the first cover 131 extends downwards to form a wind shield 132.
According to the technical scheme, the first filter 1 and the second filter 2 form an integrated structure, a split structure is abandoned, two air filters are prevented from being arranged at different positions of an engine, and the first filter 1 and the second filter 2 form the integrated structure, so that the transfer is simplified, the assembly time is shortened, and the assembly space is saved; meanwhile, the air inlet 131 is arranged on the first box cover 13, the air inlet 131 is arranged downwards, and due to the design of the wind shield 132, air enters between the first filter element 12 and the first box cover 13 from the lower part of the first box cover 11, large-particle impurities in the intake air flow cannot enter the first filter 1 under the influence of gravity, so that dust entering the air filter is effectively reduced, the filtering efficiency is improved, and the service life of the air filter is prolonged.
Specifically, the first box body 11 is provided with a first chamber 112 with one side open, the first box cover 13 is used for blocking the open side of the first chamber 112, and the through hole 111 is communicated with the first chamber 112 and the second filter 2; the first chamber 112 is provided with a first annular step 113 near the first box body, and the first filter element 12 is clamped on the first annular step 113. The first cover 13 is provided with a first annular support plate 133, a second annular step 134 is provided in the first annular support plate 133, and the side of the first filter element 12 close to the first cover is clamped on the second annular step 134. The first annular step 113 and the second annular step 134 are designed to allow for quick positioning and installation of the first cartridge 12. Meanwhile, the intake air flows between the first filter element 12 and the first box cover 13 through the intake port 131, and then enters the first chamber 112 after being filtered by the first filter element 12, and the filtered air in the first chamber 112 enters the second filter 2 through the through hole 111. In addition, the interior space formed by the first annular support plate 133 facilitates channeling the flow of intake air.
In this embodiment, the lower end of the first annular supporting plate 133 is provided with the air inlet 131, so that the layout is more reasonable. In order to improve the structural strength of the air inlet 131, a plurality of first reinforcing rib plates 135 are disposed at the air inlet 131 at equal intervals. In addition, in order to effectively support the first filter element 12, a plurality of cross columns 136 for supporting the first filter element 12 are provided in the first cover 13. A plurality of first and second support plates 114, 115 are disposed within the first chamber 112 for supporting the first filter cartridge 12, the first and second support plates 114, 115 being in opposing arrangement.
The second filter 2 comprises a second box body 21, a second filter element 22 and a second box cover 23, the second box cover 23 is buckled on the second box body 1, and the second filter element 22 is positioned between the second box body 21 and the second box cover 23; the second box body 21 is connected with the first box body 11, the second box body 21 is provided with a second chamber 211, and the through hole 111 is communicated with the first chamber 112 and the second chamber 211; a third annular step 212 is arranged on the second chamber 211 close to the second box body, and the second filter element 22 is clamped on the third annular step 212; the second cover 23 is provided with a second annular support plate 231, and one side of the second annular support plate 231 close to the second box body is pressed against the second filter element 22. The filtered air in the first chamber 112 enters the second chamber 211 through the through holes 111, and the filtered air in the second chamber 211 is subjected to secondary filtration through the second filter element 22, so that the filtering quality of the intake airflow is improved; the third annular step 212 and the second annular support plate 231 are designed to facilitate quick installation of the second cartridge 22; and the inner cavity formed by the second annular supporting plate 231 is convenient for guiding the air after the secondary filtration.
In addition, the upper end of the second annular supporting plate 231 is provided with a first air outlet 232, and a plurality of second reinforcing rib plates 233 are arranged in the first air outlet 232. The design of first air outlet 232 is convenient for export the air after the second grade filtration in second annular backup pad 231, and the structural strength of first air outlet 232 department has been improved to the design of second deep floor 233 simultaneously. The second box body 21 is provided with a second air outlet 24 for inputting filtered air into the engine, the second air outlet 24 and the second chamber 211 are arranged up and down, and the first air outlet 232 is located between the second air outlet 24 and the second chamber 211. The air after the secondary filtration passes through the inner cavity formed by the second annular support plate 231 and the first air outlet 232 and is then guided out from the second air outlet 24.
In this embodiment, in order to ensure the filtering efficiency and filtering quality, the first filter element 12 is a foam filter element, and the second filter element 22 is a paper filter element.
It should be noted that the above preferred embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not cause the essence of the corresponding technical solution to depart from the scope of the technical solution of the embodiments of the present invention, and are intended to be covered by the claims and the specification of the present invention.
Claims (10)
1. An air filter structure, characterized in that: comprises a first filter and a second filter;
the first filter and the second filter are connected;
the first filter comprises a first box body, a first filter element and a first box cover, the first box cover is buckled on the first box body, and the first filter element is positioned between the first box body and the first box cover; the first box body is connected with the second filter, and a through hole for communicating the first box body with the second filter is arranged at the joint of the first box body and the second filter; an air inlet is arranged below the first box cover close to the first filter element side, and the lower end of the first box cover extends downwards to form a wind shield.
2. An air filter construction according to claim 1, wherein:
the first box body is provided with a first cavity with one open side, the first box cover is used for blocking the open side of the first cavity, and the through hole is communicated with the first cavity and the second filter; a first annular step is arranged on the side, close to the first box body, of the first cavity, and the first filter element is clamped on the first annular step;
the first box cover is provided with a first annular supporting plate, a second annular step is arranged in the first annular supporting plate, and the side, close to the first box cover, of the first filter element is clamped on the second annular step.
3. An air filter construction according to claim 2, wherein:
the lower end of the first annular supporting plate is provided with an air inlet.
4. An air filter construction according to claim 3, wherein:
a plurality of first reinforcing rib plates which are arranged at equal intervals are arranged at the air inlet.
5. An air filter construction according to claim 1, wherein:
a plurality of cross columns used for supporting the first filter element are arranged in the first box cover.
6. An air filter construction according to claim 2, wherein:
a plurality of first supporting plates and second supporting plates used for supporting the first filter element are arranged in the first cavity, and the first supporting plates and the second supporting plates are arranged oppositely.
7. An air filter construction according to any one of claims 1 to 6, wherein:
the second filter comprises a second box body, a second filter element and a second box cover, the second box cover is buckled on the second box body, and the second filter element is positioned between the second box body and the second box cover; the second box body is connected with the first box body and provided with a second chamber, and the through hole is communicated with the first chamber and the second chamber; a third annular step is arranged on the side, close to the second box body, of the second cavity, and the second filter element is clamped on the third annular step; the second box cover is provided with a second annular supporting plate, and one side, close to the second box body, of the second annular supporting plate is pressed on the second filter element.
8. An air filter construction according to claim 7, wherein:
and a first air outlet is formed in the upper end of the second annular supporting plate, and a plurality of second reinforcing rib plates are arranged in the first air outlet.
9. An air filter construction according to claim 8, wherein:
the second box body is provided with a second air outlet for inputting filtered air into the engine, the second air outlet and the second cavity are arranged from top to bottom, and the first air outlet is positioned between the second air outlet and the second cavity.
10. An air filter construction according to claim 7, wherein:
the first filter element adopts a foam filter element and a second filter element paper filter element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122716783.1U CN216198552U (en) | 2021-11-08 | 2021-11-08 | Air filter structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122716783.1U CN216198552U (en) | 2021-11-08 | 2021-11-08 | Air filter structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216198552U true CN216198552U (en) | 2022-04-05 |
Family
ID=80905152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122716783.1U Active CN216198552U (en) | 2021-11-08 | 2021-11-08 | Air filter structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216198552U (en) |
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2021
- 2021-11-08 CN CN202122716783.1U patent/CN216198552U/en active Active
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