CN112228255B

CN112228255B - Air filter

Info

Publication number: CN112228255B
Application number: CN202011084770.0A
Authority: CN
Inventors: 于世杰
Original assignee: Wenzhou Haotai Auto Parts Co ltd
Current assignee: Wenzhou Haotai Auto Parts Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2022-12-20
Anticipated expiration: 2040-10-12
Also published as: CN112228255A

Abstract

The invention discloses an air filter which comprises a filter shell, wherein a filter element is embedded in the filter shell, an air outlet pipe communicated with the interior of the filter shell is arranged at the lower end of the filter shell, an annular baffle is connected in the filter shell in a sealing and sliding manner, an annular pipe is connected in the filter shell in a sealing and sliding manner, the annular pipe and the annular baffle are welded through an air inlet pipe, the air inlet pipe is communicated with the interior of the annular pipe, the lower end of the annular pipe is elastically connected to the inner bottom of the filter shell through a first spring, a plurality of through holes are formed in the side wall of the annular pipe, and a telescopic device enabling the spring to contract is arranged in the annular pipe. The first spring is continuously stretched through the contraction device, so that the annular pipe and the annular baffle are pulled to move up and down along the filter element, air exhausted by the air inlet pipe can be uniformly distributed on the whole filter element, the filter element is consumed more uniformly, and meanwhile, the service life of the filter element is greatly prolonged.

Description

Air filter

Technical Field

The invention relates to the technical field of air filters, in particular to an air filter.

Background

Air cleaners are commonly used in engines of motor vehicles such as automobiles and motorcycles to filter air entering the engine to prevent dust in the air from entering the engine cylinder and causing damage to the engine.

Because the separation effect of the filter element in the filter, most of dirt such as dust is gathered on the filter element part close to the air inlet, after the filter element part close to the air inlet is used for a period of time, a large amount of dust is polluted, the filter element part far away from the air inlet is still very clean, but the integral filtering performance is greatly reduced, and the filter element cannot be used continuously. This not only results in uneven wear of the filter element, but also results in a short filter element life. Accordingly, the present document proposes an air cleaner.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides an air filter.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an air filter, includes the filter casing, the filter casing is internal to be inlayed and to be equipped with the filter core, the lower extreme of filter casing is equipped with rather than the communicating outlet duct of inside, filter casing internal seal sliding connection has the ring baffle, filter casing internal seal sliding connection has the ring pipe, just through the intake pipe welding between ring pipe and the ring baffle, intake pipe and the inside intercommunication of ring pipe, the lower extreme of ring pipe is at the interior bottom of filter casing through first spring elastic connection, a plurality of through-holes have been seted up to the lateral wall of ring pipe, install the telescoping device who makes the spring shrink in the ring pipe, the gas pocket has been seted up at the interior top of filter casing.

Preferably, the telescoping device includes two sliding plugs of sealed sliding connection in the ring tube, just the sliding plug adopts magnetic material to make, and two the sliding plug passes through second spring elastic connection, inlays on the inner wall of ring tube and is equipped with the closed coil with spring electric connection.

Preferably, a plurality of strip-shaped grooves are formed in the inner wall of the annular baffle, iron vibration plates are connected in the strip-shaped grooves in a sliding mode, and the vibration plates are elastically connected to the inner wall of the strip-shaped grooves through third springs.

The invention has the following beneficial effects:

1. the first spring is continuously stretched through the shrinking device, so that the annular pipe and the annular baffle are pulled to move up and down along the filter element, air exhausted by the air inlet pipe can be uniformly distributed on the whole filter element, the filter element is more uniformly worn, and the service life of the filter element is greatly prolonged;

2. by arranging magnetic sliding plugs, spiral coils and other components, the sliding plugs can reciprocate in the annular pipe by utilizing the pulse characteristic of the engine during air intake, and continuously enter and exit the spiral coils to generate induction current to stretch the first spring, so that a complex electric drive component is not required to be installed, and the energy-saving and environment-friendly effects are achieved;

3. through setting up parts such as vibration board, third spring, can attract each vibrating board of iron system to pat the filter core when the sliding plug slides along the ring pipe, can beat out the dust that part remained on the filter core, improve the filter effect of filter core, also can further prolong the life of filter core.

Drawings

Fig. 1 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 2 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

FIG. 4 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 5 is an enlarged view of the structure at C in FIG. 4;

FIG. 6 is a schematic cross-sectional view of an annular plate in the present device.

In the figure: the filter comprises a filter shell 1, air holes 101, a filter element 2, an air outlet pipe 3, an air inlet pipe 4, an annular baffle 5, an annular pipe 6, a sliding plug 7, a spring 8, a through hole 9, a closed coil 10, a first spring 11, a vibrating plate 12, a third spring 13 and a strip-shaped groove 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The first embodiment is as follows:

referring to fig. 1-3, an air cleaner, including filter housing 1, filter housing 1 embeds is equipped with filter element 2, filter housing 1's lower extreme is equipped with communicating outlet duct 3 rather than inside, filter housing 1 internal seal sliding connection has ring baffle 5, filter housing 1 internal seal sliding connection has ring pipe 6, it should be explained that, ring baffle 5 and ring pipe 6 all with filter element 2's lateral wall in close contact with, in order to guarantee good gas tightness, and through intake pipe 4 welding between ring pipe 6 and the ring baffle 5, in addition, intake pipe 4 seals and runs through filter housing 1, and intake pipe 4 is longer can reciprocate along with ring baffle 5 and ring pipe 6 and pass in and out filter housing. Intake pipe 4 and the inside intercommunication of annular duct 6, annular duct 6's lower extreme passes through 11 elastic connection of first spring at the interior bottom of filter casing 1, a plurality of through-holes 9 have been seted up to annular duct 6's lateral wall, install the telescoping device who makes the shrink of first spring 11 in the annular duct 6, gas pocket 101 has been seted up at filter casing 1's interior top, through setting up gas pocket 101, can make things convenient for annular baffle 5 to reciprocate at filter casing 1 unhindered, and because the through-hole setting is between annular baffle 5 and annular duct 6, consequently exhaust air only can get into 2 parts of filter core between annular baffle 5 and the annular duct 6, discharge after filtering again.

The telescopic device comprises two sliding plugs 7 which are connected in the annular pipe 6 in a sealing and sliding mode, the sliding plugs 7 are made of magnetic materials, the air inlet end of the air inlet pipe 4 is arranged between the two sliding plugs 7, in an initial state, the two sliding plugs 7 are relatively short, the number of the through holes 9 between the two sliding plugs 7 is small, the two sliding plugs 7 are elastically connected through the second spring 8, and the closed coil 10 electrically connected with the first spring 11 is embedded in the inner wall of the annular pipe 6. The closing coil 10 is distributed only on a part of the wall of the annular tube 6, so that the sliding plug 7 can completely enter and exit the inside of the closing coil 10 when moving.

Due to the motion characteristics of a cylinder piston in the engine, the engine is in an intermittent pulse form when air is fed and exhausted. Therefore, when the air inlet pipe 4 is used for air inlet, the number of the through holes 9 between the two sliding plugs 7 is small, air entering the annular pipe 6 from the air inlet pipe 4 cannot be discharged completely at once, so that the air pressure in the annular pipe 6 is increased instantly, the two sliding plugs 7 can be pushed to move relatively, the second spring 8 can be contracted, and when the air inlet pipe is positioned in an air inlet interval of an engine, the second spring 8 is stretched again and pushes the two sliding plugs 7 to move back and reset. Therefore, in the process of engine pulse air intake, the two sliding plugs 7 move back and forth in the annular tube 6, and the sliding plugs 7 can also move in and out of the closing coil 10 when moving, so that the magnetic flux in the closing coil 10 can be continuously changed to generate induction current, the first spring 11 can be electrified and contracted, and when the sliding plugs 7 completely leave the closing coil 10, the magnetic flux in the closing coil 10 is zero, the first spring 11 is powered off and extends and recovers, and the first spring 11 can be continuously electrified and powered off to continuously expand and contract the first spring 11. The first spring 11 pulls the ring tube 6 and the ring damper 5 to reciprocate up and down in the filter case 1 during expansion and contraction.

Air exhausted from the through hole 9 on the annular pipe 6 is blocked by the annular baffle 5 and the annular pipe 6, and the air can only enter the filter element 2 between the annular baffle 5 and the annular pipe 6, and is exhausted into an engine cylinder through the air outlet pipe 3 after being filtered. And the annular pipe 6 and the annular baffle 5 constantly reciprocate in the filter casing 1 again, can make even the spouting of exhaust air around filter element 2 like this, so can make the more even of filter element 2 consume, also can prolong the life of filter element 2 greatly simultaneously.

Example two:

referring to fig. 4-6, unlike the first embodiment, a plurality of strip grooves 14 are formed on the inner wall of the ring-shaped baffle 5, an iron vibration plate 12 is slidably connected in the strip grooves 14, and the vibration plate 12 is elastically connected to the inner wall of the strip grooves 14 through a third spring 13. A plurality of strip-shaped grooves 14 are distributed at equal intervals along the periphery of the filter element 2, so as to be sequentially close to and away from each vibrating plate 12 during the movement of the sliding plug 7.

In this embodiment, when the sliding plug 7 slides along the annular tube 6, it will be close to each iron vibrating plate 12 in sequence, and when the magnetic sliding plug 7 is close to a certain iron vibrating plate 12, it can attract the vibrating plate 12 to move in its direction and flap the filter element 2 once, after the sliding plug 7 leaves, the third spring 13 pulls the vibrating plate 12 to move back and forth to reset. So can be at the motion in-process of sliding plug 7, make each vibration board 12 pat filter core 2 many times, can beat partial filths such as dust attached to on filter core 2, improve the penetrating effect and the filtering quality of filter core 2, also can further prolong the change cycle of filter core 2, promote the life of filter core 2.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. An air filter comprises a filter shell (1), wherein a filter element (2) is embedded in the filter shell (1), and an air outlet pipe (3) communicated with the interior of the filter shell is arranged at the lower end of the filter shell (1), and is characterized in that an annular baffle (5) is connected in the filter shell (1) in a sealing and sliding manner, an annular pipe (6) is connected in the filter shell (1) in a sealing and sliding manner, the annular pipe (6) and the annular baffle (5) are welded through an air inlet pipe (4), the air inlet pipe (4) is communicated with the interior of the annular pipe (6), the lower end of the annular pipe (6) is elastically connected to the inner bottom of the filter shell (1) through a first spring (11), a plurality of through holes (9) are formed in the side wall of the annular pipe (6), a telescopic device for enabling the first spring (11) to contract is installed in the annular pipe (6), and an air hole (101) is formed in the inner top of the filter shell (1);

the telescopic device comprises two sliding plugs (7) which are connected in a sealing and sliding manner in the annular tube (6), the sliding plugs (7) are made of magnetic materials, the two sliding plugs (7) are elastically connected through a second spring (8), and a closed coil (10) which is electrically connected with the first spring (11) is embedded in the inner wall of the annular tube (6);

the two sliding plugs (7) move back and forth in the annular tube (6), and the sliding plugs (7) can also enter and exit the closed coil (10) when moving, so that the magnetic flux in the closed coil (10) can be continuously changed to generate induction current, and the first spring (11) can be electrified and contracted;

a plurality of strip-shaped grooves (14) are formed in the inner wall of the annular baffle (5), iron vibration plates (12) are connected in the strip-shaped grooves (14) in a sliding mode, and the vibration plates (12) are elastically connected to the inner wall of the strip-shaped grooves (14) through third springs (13).