CN215860554U

CN215860554U - Air filter of fuel ventilation pipeline

Info

Publication number: CN215860554U
Application number: CN202121926396.4U
Authority: CN
Inventors: 王志斌
Original assignee: Shanghai Enkuofu Environmental Protection Technology Co ltd
Current assignee: Shanghai Enkuofu Environmental Protection Technology Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-02-18
Anticipated expiration: 2031-08-17

Abstract

The utility model belongs to the technical field of air filters, and discloses an air filter of a fuel ventilation pipeline, which comprises a shell, wherein a filtering inner cavity is formed in the shell, a sealing groove is formed in the top of the shell, an air inlet pipe is movably sleeved in the sealing groove, a transit pipe is fixedly communicated with the bottom of the air inlet pipe, and an auxiliary filter element is fixedly arranged in the filtering inner cavity. According to the utility model, the air is discharged along the interior of the air inlet pipe and enters the filtering inner cavity, the tail end of the air inlet pipe points to be parallel to the tangent line of the outer surface of the main filter element and forms a sixty-degree included angle with the horizontal plane, so that the air from the outside cannot be directly and singly blown to the outer surface of the main filter element, but is blown to the auxiliary filter element firstly, and the air which is preliminarily adsorbed and filtered uniformly passes through the main filter element, thereby avoiding the phenomenon that the local part of the main filter element becomes dirtier due to the single air inlet, further avoiding influencing the air inlet efficiency, prolonging the service life of the main filter element and improving the air inlet efficiency.

Description

Air filter of fuel ventilation pipeline

Technical Field

The utility model belongs to the technical field of air filters, and particularly relates to an air filter of a fuel ventilation pipeline.

Background

When an automobile engine works, a sealed engine case generates negative pressure under the action of a piston, outside air is sucked in and then mixed with fuel, before the air enters an air cylinder, the air needs to pass through an air filter of a fuel ventilation pipeline, the air filter divides dust and impurities in the air according to the diameter and selectively filters and adsorbs the dust and the impurities, and for the fuel ventilation pipeline of the automobile, the air filter is used for blocking the impurities such as the dust and the like in the air outside the air cylinder and preventing the air cylinder from being damaged.

At present, air cleaner's main component part is the shell and adds the filter core, current air cleaner installs before the engine intake valve, be responsible for filtering impurity in the air, because current air cleaner direction of admitting air is single, the passageway that leads to admitting air at every turn is single, the part that can contact the filter core at first after having caused air entering filter inside at every turn like this, long this in the past, the part that the filter core contacted air at first just can be dirty than other parts, can lead to admitting air inefficiency, simultaneously, the life of filter core has been reduced.

In addition, the existing air filter does not have a proper self-cleaning function, impurities and dust can adhere to the outer surface of the filter element for adsorbing and filtering the impurities in the air, and the filter element cannot be properly cleaned generally due to the fact that the service life of the filter element is short, so that the ventilation efficiency of the filter element is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provides an air filter of a fuel ventilation pipeline, which has the advantages of high air intake efficiency and convenience in cleaning.

In order to achieve the purpose, the utility model provides the following technical scheme: an air filter of a fuel ventilation pipeline comprises a shell, wherein a filtering inner cavity is formed in the shell, a sealing groove is formed in the top of the shell, an air inlet pipe is movably sleeved in the sealing groove, a transit pipe is fixedly communicated with the bottom of the air inlet pipe, an auxiliary filter element is fixedly installed in the filtering inner cavity, a support ring is fixedly installed at the bottom of the filtering inner cavity, a clamping groove is formed in the top of the support ring, a main filter element is movably clamped at the top of the clamping groove, an air outlet pipe is fixedly communicated with the bottom of the shell, an air outlet is formed in the bottom of the shell, an air inlet groove is formed in the air inlet pipe, the air outlet pipe is connected with an engine, the air inlet pipe is connected with external air, the air passing through an automobile air inlet fence enters the transit pipe along the air inlet pipe, then enters an air cylinder through the main filter element under the negative pressure action of a cylinder piston to complete the work of the engine, the air comes and gives a reaction force of transfer pipe along the transfer pipe blowout, at this moment, external air does not directly dash the surface to main filter core, but evenly dashes earlier and filters the inner chamber inside, then evenly through main filter core, meanwhile, the transfer pipe that receives reaction force can rotate, it needs to notice that the upper end of intake pipe is not with last one-level pipeline fixed connection, but connect with the form that sealed activity cup jointed, like this, just can not influence the rotation of intake pipe.

As a preferable technical scheme of the present invention, the number of the transfer pipes is four, the four transfer pipes are circumferentially distributed at the bottom of the air inlet pipe at equal intervals based on the center of a circle of the air inlet pipe, as shown in fig. 2, the four transfer pipes are fixedly communicated with the bottom of the air inlet pipe, when air enters the transfer pipes along the air inlet pipe and enters the filtering inner cavity due to negative pressure, a reaction force directed at one end of each transfer pipe is given to drive the transfer pipes to rotate, because the end directions of the four transfer pipes are consistent with the included angles of the horizontal plane, the reaction force generated by the four transfer pipes can drive the air inlet pipe to rotate, air exhausted from the end of each transfer pipe can blow to the auxiliary filter element first, so that the auxiliary filter element can absorb and filter the air first, and the working strength of the main filter element is reduced.

As a preferred technical scheme of the utility model, a driving block is fixedly sleeved on the outer surface of the transit pipe, a turntable is fixedly installed at the bottom of the driving block, a cleaning strip is fixedly connected to the bottom of the turntable, the cleaning strip is positioned above the main filter element, a shovel sheet is fixedly installed at the edge of the bottom of the cleaning strip, a sleeve opening is formed in the driving block, the transit pipe penetrates through the sleeve opening, when air is discharged along the transit pipe, the transit pipe and the air inlet pipe are driven to rotate, then the driving block, the turntable, the cleaning strip and the shovel sheet are driven to rotate, the rotating cleaning strip can scrape the outer surface of the main filter element, impurities in the air wrapped on the periphery of the main filter element are cleaned, and the service life of the main filter element is prolonged.

As a preferred technical scheme of the utility model, the other end of the transit pipe forms a sixty-degree included angle with the horizontal plane, the other end of the transit pipe is parallel to the tangent line of the main filter element, the tail end of the transit pipe points to form a sixty-degree included angle with the horizontal plane, and because air exhausted from the tail end of the transit pipe by negative pressure can generate a reverse thrust to the transit pipe, the transit pipe can obtain a component force from the horizontal plane, so that the air inlet pipe is driven to rotate, and the air inlet pipe is driven to rotate ceaselessly by the force exerted on the four transit pipes.

As a preferred technical scheme of the utility model, the cleaning strip is wrapped on the outer surface of the main filter element in a spiral downward manner, the distance between the cleaning strip and the outer surface of the main filter element is one millimeter, the cleaning strip is wrapped on the main filter element in a spiral downward manner, the cleaning strip is driven by the transfer pipe to rotate around the outer surface of the main filter element and scrape and clean, the distance of one millimeter enables the cleaning strip to generate wind power during rotation, then dust or other particles which are just attached to the outer surface of the main filter element are driven, and then the shoveling sheet is responsible for shoveling away the fallen impurities.

As a preferred technical scheme of the present invention, the cross-sectional shape of the shovel blade is a right trapezoid, the acute angle direction of the cross-section of the shovel blade is consistent with the tangential direction of the rotation of the turntable, the shovel blade is driven by the turntable and the cleaning strip to move on the top edge of the support ring, the acute angle direction of the cross-section of the shovel blade is consistent with the tangential line of the moving direction of the shovel blade, and when the shovel blade is driven to rotate, impurities falling on the top edge of the support ring are shoveled away, so that the impurities fall on the bottom of the filter cavity, and the cleaning of the main filter element is maintained.

Compared with the prior art, the utility model has the following beneficial effects:

1. the air inlet pipe is movably sleeved inside the sealing groove, so that the air inlet pipe can rotate freely, air is discharged along the inside of the air inlet pipe and enters the filtering inner cavity, the tail end of the transit pipe points to be parallel to the tangent of the outer surface of the main filter element and forms a sixty-degree included angle with the horizontal plane, so that air from the outside cannot be directly and singly blown to the outer surface of the main filter element, but is blown to the auxiliary filter element first, and the air after primary adsorption and filtration uniformly passes through the main filter element, so that the local dirtying of the main filter element caused by the single air inlet is avoided, the air inlet efficiency is influenced, the service life of the main filter element is longer, and the air inlet efficiency is higher.

2. The self-cleaning filter core is provided with the sealing groove, the air inlet pipe, the transit pipe, the driving block, the rotary table, the cleaning strip and the like, so that the self-cleaning function of the main filter core is realized, the transit pipe passes through air, the air discharged along the tail end of the transit pipe can provide a reaction force for the transit pipe under the action of negative pressure of an engine, so that the transit pipe and the air inlet pipe are driven to rotate, the cleaning strip is driven to rotate along the outer surface of the main filter core through driving the driving block and the rotary table to rotate so as to be scraped and cleaned, and sundries falling on the edge of the top of the supporting ring are shoveled down through the shoveling piece, so that the main filter core has the self-cleaning function during working.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram showing the separation of the internal structure of the housing according to the present invention;

FIG. 3 is a schematic front view of the structure of the present invention;

FIG. 4 is a schematic view of the internal structure of the housing of the present invention;

FIG. 5 is a schematic structural view of an air inlet pipe, a transfer pipe, a driving block, a turntable, a cleaning strip, a shovel blade and an air inlet groove.

In the figure: 1. a housing; 2. an air outlet pipe; 3. a sealing groove; 4. an air inlet pipe; 5. an auxiliary filter element; 6. a support ring; 7. a card slot; 8. a main filter element; 9. a transit tube; 10. driving the block; 11. a turntable; 12. cleaning the strips; 13. a shovel blade; 14. an air inlet groove; 15. looping; 16. filtering the inner cavity; 17. and an air outlet.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, the utility model provides an air filter of a fuel ventilation pipeline, which comprises a shell 1, wherein a filtering inner cavity 16 is arranged inside the shell 1, a sealing groove 3 is arranged at the top of the shell 1, an air inlet pipe 4 is movably sleeved inside the sealing groove 3, a transit pipe 9 is fixedly communicated with the bottom of the air inlet pipe 4, an auxiliary filter element 5 is fixedly arranged inside the filtering inner cavity 16, a support ring 6 is fixedly arranged at the bottom of the filtering inner cavity 16, a clamping groove 7 is arranged at the top of the support ring 6, a main filter element 8 is movably clamped at the top of the clamping groove 7, an air outlet pipe 2 is fixedly communicated with the bottom of the shell 1, an air outlet 17 is arranged at the bottom of the shell 1, an air inlet groove 14 is arranged inside the air inlet pipe 4, the air outlet pipe 2 is connected with an engine, the air inlet pipe 4 is connected with outside air, the air passing through an automobile air inlet fence enters the transit pipe 9 along the air inlet pipe 4, and then under the negative pressure action of a cylinder piston, get into the cylinder through main filter core 8 and accomplish the engine and do work, the air comes and gives a reaction force of transfer pipe 9 along the 9 blowout of transfer pipe, at this moment, external air does not directly dash the surface to main filter core 8, but evenly dashes into earlier inside the filter inner chamber 16, then evenly through main filter core 8, meanwhile, the transfer pipe 9 that receives the reaction force can rotate, it is noted that, the upper end of intake pipe 4 is not with last one-level pipeline fixed connection, but connect with the form that sealed activity cup jointed, thus, just can not influence the rotation of intake pipe 4.

The number of the transfer pipes 9 is four, the four transfer pipes 9 are circumferentially distributed at the bottom of the air inlet pipe 4 at equal intervals by taking the circle center of the air inlet pipe 4 as a reference, as shown in fig. 2, the four transfer pipes 9 are fixedly communicated with the bottom of the air inlet pipe 4, when air enters the transfer pipes 9 along the air inlet pipe 4 due to negative pressure and enters the filtering inner cavity 16, a reaction force pointing to one end of each transfer pipe 9 is given to drive the transfer pipes 9 to rotate, because the included angles between the pointing directions of the ends of the four transfer pipes 9 and the horizontal plane are uniform, the reaction force generated by the four transfer pipes 9 can drive the air inlet pipe 4 to rotate, air exhausted from the ends of the transfer pipes 9 can blow to the auxiliary filter element 5 first, so that the auxiliary filter element 5 absorbs and filters the air first, and the working strength of the main filter element 8 is reduced.

Wherein, the fixed cover of surface of transfer pipe 9 has been connected with drive piece 10, the bottom fixed mounting who drives piece 10 has carousel 11, the bottom fixedly connected with clearance strip 12 of carousel 11, clearance strip 12 is located the top of main filter core 8, the bottom edge fixed mounting of clearance strip 12 has shovel piece 13, cuff 15 has been seted up to the inside of drive piece 10, transfer pipe 9 passes cuff 15, can drive transfer pipe 9 and intake pipe 4 when air discharges along transfer pipe 9 and rotate, then drive piece 10, carousel 11, clearance strip 12 and shovel piece 13 rotate, the clearance strip 12 in the rotation just can scrape main filter core 8's surface, give the clearance with some impurity of parcel in main filter core 8 outlying air, improve main filter core 8's life.

Wherein, the other end of transfer pipe 9 is sixty degrees contained angle with the horizontal plane, and the other end of transfer pipe 9 is parallel with the tangent line of main filter core 8, and the terminal directive of transfer pipe 9 is sixty degrees contained angle with the horizontal plane, because negative pressure can produce a thrust to transfer pipe 9 from the air of transfer pipe 9 end exhaust, transfer pipe 9 can obtain one and come from horizontal component to drive intake pipe 4 and rotate, and the power that four transfer pipes 9 received separately will promote intake pipe 4 and rotate ceaselessly.

Wherein, clearance strip 12 wraps up at main filter core 8's surface with the decurrent form of spiral, a millimeter is separated from between clearance strip 12 and main filter core 8's the surface, main filter core 8 is wrapping up with the decurrent form of spiral to clearance strip 12, rotate and scrape the clearance round main filter core 8's surface under the drive of transfer pipe 9, the distance of a millimeter makes clearance strip 12 can produce wind-force when rotating, then drive main filter core 8 surface and just attached to dust or other granule, then slice 13 is responsible for shoveling away the impurity that drops.

Wherein, the cross sectional shape of shovel piece 13 is right trapezoid, and the acute angle of shovel piece 13 cross-section points to unanimous with the rotatory tangential direction of carousel 11, and shovel piece 13 is driven by carousel 11 and clearance strip 12 and removes at the top edge of support ring 6, and the acute angle of its cross-section points to unanimous with the tangent line of its moving direction, and when shovel piece 13 was driven and carries out the pivoted, will fall on the impurity shovel away of support ring 6 top edge for debris fall on the bottom of filtering inner chamber 16, keep the clearance of main filter core 8.

The working principle and the using process of the utility model are as follows:

a piston in the engine forms negative pressure through up-and-down reciprocating motion, so that outside air enters the transit pipe 9 along the air inlet pipe 4 and then is discharged into the filtering inner cavity 16 from the tail end of the transit pipe 9, the air entering the filtering inner cavity 16 firstly rushes to the auxiliary filter element 5 and then is preliminarily adsorbed and filtered by the auxiliary filter element 5, and the air treated by the auxiliary filter element 5 uniformly passes through the main filter element 8 and then enters the engine along the air outlet 17 and the air outlet pipe 2;

when air is discharged along the tail end outlet of the transit pipe 9, a reaction force is given to the transit pipe 9, so that the transit pipe 9 is pushed to drive the air inlet pipe 4 to rotate, the transit pipe 9 in rotation drives the driving block 10 and the rotating disc 11 to rotate, then the cleaning strips 12 and the shovel blades 13 are driven to rotate, the cleaning strips 12 in rotation generate wind power on the outer surface of the main filter element 8, then dust or other sundries which are just attached to the outer surface of the main filter element 8 are driven to clean, and the moving shovel blades 13 shovel away the cleaned sundries to finish self-cleaning of the main filter element 8.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An air filter of fuel ventilation pipeline, includes shell (1), its characterized in that: filter inner chamber (16) has been seted up to the inside of shell (1), seal groove (3) have been seted up at the top of shell (1), intake pipe (4) have been cup jointed in the inside activity of seal groove (3), the fixed intercommunication in bottom of intake pipe (4) has transit pipe (9), the inside fixed mounting who filters inner chamber (16) has vice filter core (5), the bottom fixed mounting who filters inner chamber (16) has support ring (6), draw-in groove (7) have been seted up at the top of support ring (6), the top activity joint of draw-in groove (7) has main filter core (8), the fixed intercommunication in bottom of shell (1) has outlet duct (2), gas outlet (17) have been seted up to the bottom of shell (1), air inlet duct (14) have been seted up to the inside of intake pipe (4).

2. An air filter for a fuel ventilation line as set forth in claim 1, wherein: the number of the transfer pipes (9) is four, and the four transfer pipes (9) are circumferentially distributed at the bottom of the air inlet pipe (4) at equal intervals by taking the circle center of the air inlet pipe (4) as a reference.

3. An air filter for a fuel ventilation line as set forth in claim 2, wherein: the fixed cover of surface of transfer pipe (9) has been connect and has been taken movable block (10), the bottom fixed mounting who takes movable block (10) has carousel (11), the bottom fixedly connected with clearance strip (12) of carousel (11), clearance strip (12) are located the top of main filter core (8), the bottom edge fixed mounting of clearance strip (12) has shovel piece (13), cuff (15) have been seted up to the inside of taking movable block (10), transfer pipe (9) pass cuff (15).

4. An air filter for a fuel ventilation line as set forth in claim 2, wherein: the other end of the transit pipe (9) and the horizontal plane form a sixty-degree included angle, and the other end of the transit pipe (9) is parallel to the tangent line of the main filter element (8).

5. An air filter for a fuel ventilation line as set forth in claim 3, wherein: the cleaning strips (12) are wrapped on the outer surface of the main filter element (8) in a downward spiral mode, and a distance between the cleaning strips (12) and the outer surface of the main filter element (8) is one millimeter.

6. An air filter for a fuel ventilation line as set forth in claim 3, wherein: the section of the shovel piece (13) is in a right trapezoid shape, and the acute angle direction of the section of the shovel piece (13) is consistent with the rotating tangential direction of the rotary table (11).