CN203347952U

CN203347952U - Air filter

Info

Publication number: CN203347952U
Application number: CN 201320439439
Authority: CN
Inventors: 陈华
Original assignee: Wuxi Longsheng Technology Co Ltd
Current assignee: Wuxi Longsheng Technology Co Ltd
Priority date: 2013-07-23
Filing date: 2013-07-23
Publication date: 2013-12-18
Anticipated expiration: 2023-07-23

Abstract

The utility model discloses an air filter, which comprises an outer case, wherein a bottomless inner case is assembled in the outer case, the top end of an inner case is sealed through a case cover, a cavity of the inner case is communicated with an engine air inlet through an air outlet pipe, one end, positioned in the inner case, of the air outlet pipe is connected with a filtering device used for filtering air through a connecting element, the filtering device comprises a round-tube-shaped filter core connected with the bottom end of the connecting element, a filter cup is covered on the outer circumferential side of the filter core, the filter core is tightly pressed between the bottom surface of the filter cup and the connecting element through self-tapping screws, communicated air inlet passages are respectively arranged between the side wall of the outer case and the side wall of the inner case as well as between the bottom end of the inner case and the bottom surface of the outer case, a gap used for allowing the air to flow is formed between the filter cup and the filter core, and an air passage used for communicating a center hole of the filter core and the air outlet pipe is arranged in the connecting element. The air filter has the advantages that the structure is simple, the cost is low, the size is smaller, the dust storage capability is high, and the air filter can be effectively prevented from ageing too early.

Description

A kind of air-strainer

Technical field

The utility model relates to the automotive air intake technical field, particularly a kind of air-strainer.

Background technique

Air-strainer is mainly used in the fields such as pneumatic machinery and diesel machine, and effect is to provide clean air for these machinery, in case machinery sucks the probability that increases abrasion with the air of impurity particle and damage at work.The chief component of air-strainer is filter core and casing, and wherein filter core is main filtration fraction, bearing the filtration work of gas, and casing is that the external structure of necessary protection is provided for filter core.The job requirement of air-strainer is to bear high efficiency air filtering work, not for Air Flow increases too much resistance, and can long time continuous working.

Motor car engine is wanted a large amount of air of inspiration in the course of the work, if the dust that air, without filtering, suspends in air is inhaled in cylinder, and will the accelerating piston group and the wearing and tearing of cylinder.Larger particle enters between piston and cylinder, can cause serious " scuffing of cylinder bore " phenomenon, particularly serious in this working environment rocky in drying.Air-strainer is contained in the place ahead of Carburetor or suction tude, plays the effect of dust, sand grains in the filtering air, guarantees to enter enough, clean air in cylinder.

Light-duty Vehicle air-strainer used generally mostly is dry-type air cleaner, and its filter core is paper filter core, has the advantages such as filtering efficiency is high, quality is light, cost is low, easy to maintenance, is widely adopted.Yet the shell of paper filter core is all quality of rubber materials, and the shell of quality of rubber materials has following shortcoming: 1) poorly sealed between upper lower casing, air easily from enter motor in gap between shell and lower casing, motor is worked the mischief; 2) easily aging, cause filtering mouth closure not tight, the crack failure phenomenon even occurs; 3) life-span is short, volume is large, manufacture cost is high, manufacturing deficiency is serious etc.The paper filter core of dry-type air cleaner is the form that single-layer folded stacker matter filter core adds layer of non-woven fabric mostly, its shortcoming is that capacity is low, add the filter core of nonwovens, because nonwovens is too fine and closely woven, when doing the grey ability test of storage, nonwovens stops up too early, causes the air filter mouth to store up grey poor ability, finally causes the phenomenons such as effective engine power descends, efficiency is low, oil consumption is large to occur.

Summary of the invention

The technical problem that the utility model solves is to provide the air-strainer that a kind of simple in structure, with low cost, small volume, storage ash ability are strong, can effectively prevent premature aging.

For solving the problems of the technologies described above, technical solution adopted in the utility model is:

A kind of air-strainer, comprise sheet metal part through the electrophoretic process shell that is made, and in shell, by being arranged on arc convex on the inwall of shell middle part along an equipped bottomless inner casing, the top of inner casing seals by cap; The cavity of described inner casing is by being communicated with engine intake for the outside steam outlet pipe of cleaned air of carrying, by level and relative set, through hole on the sidewall of shell and inner casing supports described steam outlet pipe, and the end that steam outlet pipe is arranged in inner casing connects the filtrating equipment for filtered air by link;

Described filtrating equipment comprises the cylindrical shape filter core formed by the pine sawdust compacting that is connected to the link bottom, the filter core outer circumferential sides is coated with height and the corresponding filter bowl of filter core, and by cross-under, the tapping screw in the filter core center hole is pressed between filter bowl bottom surface and link described filter core;

Be provided with the gas-entered passageway be communicated with between between described side wall of outer shell and interior shell side wall and inner casing bottom and shell bottom surface, be provided with between filter bowl and filter core for flowing through the gap of gas, be provided with the gas channel that is communicated with filter core center hole and steam outlet pipe in link.

The concrete structure of described link is: described link comprises right angle type link body, be provided with the vertical breathing pipe and the horizontal communication pipe that are connected in the link body, the bottom of described vertical breathing pipe is communicated with the filter core center hole, and the horizontal communication pipe is communicated with steam outlet pipe; Described link arranges on the outer wall of vertical breathing pipe and is provided with the tapped hole mutually equipped with tapping screw.

The improvement of described link is: described link arranges vertical breathing pipe position for the cylindrical section mutually equipped with the filter core center hole, and the middle and lower part of cylindrical section is fixedly connected with the annular table that is useful on filter core top, location.

The further improvement of described link is: the horizontal communication inner tube wall of described link is equipped mutually with the steam outlet pipe outer wall, and the horizontal communication pipe is provided with for orienting the limited step of tracheae with the position that vertical breathing pipe is connected; Between described horizontal communication pipe and steam outlet pipe by being arranged on shackle member on horizontal communication pipe outer wall and fastening with the mutually equipped plus screw of shackle member.

Improvement of the present utility model is: described link adopts teflon injection molded.

Owing to having adopted above technological scheme, the obtained technological progress of the utility model is:

The utility model is simple in structure, with low cost, small volume, storage ash ability is strong, can effectively prevent premature aging.The utility model gas-entered passageway simple in structure and tortuous is the impurity such as dust in filtered air effectively, thereby the impurity that air filter mouth inner filter core is saved bit by bit is slower, the filter core operating time strengthens greatly, the filter element cleaning cycle lengthens greatly, thereby greatly lengthen maintenance period, reduced labourer's labor intensity, reduced maintenance expenses, even also can use well under severe working environment.

Filter core of the present utility model is to form with the pine compacting, and technological operation is simple, and filtering fineness is good; The periphery of pine filter core wraps the air filter mouth by filter bowl again not only can play the air filtering effect, and can also play the function of noise elimination noise reduction.Coordinating between shell and inner casing adopts a kind of outstanding convex surface to be assembled, and this assembly structure makes between shell and inner casing degree of tightness suitable, can easily be press-fitted, and can easyly remove again, and can not make shell and inner casing damage.Shell of the present utility model, inner casing and cap all adopt sheet metal part make moulding and assembled after electrophoretic process again, can greatly strengthen corrosion resistance of the present utility model.

On the utility model link cylindrical section annular table for spacing filter core, guarantee that filter core can be pressed between link and filter bowl, realizes the filtration fully of air.The setting of limited step in link horizontal communication pipe, for to steam outlet pipe device position-limiting action, place steam outlet pipe dark to inserting in link, blocks vertical breathing pipe, assurance gas channel unimpeded.

The accompanying drawing explanation

Fig. 1 is that master of the present utility model looks sectional view;

Fig. 2 is side view cutaway drawing of the present utility model;

The stereogram that Fig. 3 is link described in the utility model;

The sectional view that Fig. 4 is link described in the utility model;

Fig. 5 is scheme of installation of the present utility model.

Wherein: 1. shell, 2. cap, 3. inner casing, 4. steam outlet pipe, 5. support, 6. Studs, 7. tapping screw, 8. filter bowl, 9. filter core, 10. link, 101. link bodies, 102. annular table, 103. shackle member, 104. vertical breathing pipes, 105. horizontal communication pipes, 106. limited steps, 107. tapped hole, 11. plus screw, 12. arc convex edges, 13. exocoel, 14. inner chambers, 15. gap.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.

A kind of air-strainer, its structure as depicted in figs. 1 and 2, comprises shell 1, inner casing 3, cap 2, steam outlet pipe 4 and filtrating equipment.

Shell 1, inner casing 3 and cap 2 all adopt sheet metal part make moulding and join through the laggard luggage of electrophoretic process.Be provided with spaced arc convex on the inwall at shell 1 middle part along 12, inner casing 3 is installed in shell along 12 by the arc convex, and inner casing 3 is without bottom surface, and the top of inner casing 3 is by cap 2 sealings; The top of shell, along being symmetrically arranged with at least two gap 15, compresses cap 2 for bending inwards.Be provided with the gas-entered passageway be communicated with between between side wall of outer shell and interior shell side wall and inner casing bottom and shell bottom surface, air enters the cavity of inner casing from gas-entered passageway.

Two corresponding through holes have been horizontally disposed with on the sidewall of shell and inner casing, for supporting steam outlet pipe 4; The cavity of inner casing 3 is communicated with engine intake by steam outlet pipe 4, and steam outlet pipe 4 is for carrying cleaned air after filtering to motor.The end that steam outlet pipe 4 is arranged in inner casing is connected with filtrating equipment by link 10.

Described filtrating equipment comprises filter core 9 and filter bowl 8, and filter core is arranged in filter bowl.Filter core 9 is columnar structured, adopts the pine sawdust compacting to form; The filter bowl 8 uncovered setting that makes progress, the height of filter bowl is corresponding with the height of filter core, and filter bowl is coated on the outer circumferential sides of filter core.The bottom of link 10 is pressed on filter core 9 tops, and by cross-under, the tapping screw in the filter core center hole 7 is pressed between filter bowl 8 bottom surfaces and link 10 filter core 9.Be provided with between filter bowl and filter core for flowing through the gap of gas, be convenient to air in this gap enters into the center hole of filter core after filter element filtering.

The structure of link 10 as shown in Figure 3 and Figure 4, comprise right angle type link body 101, be provided with the gas channel that is communicated with filter core 9 center holes and steam outlet pipe 4 in link body 101, gas channel comprises vertical breathing pipe 104 and the horizontal communication pipe 105 be connected, the bottom of vertical breathing pipe 104 is communicated with filter core 9 center holes, and horizontal communication pipe 105 is communicated with steam outlet pipe 4.

Link 10 arranges vertical breathing pipe 104 positions for the cylindrical section mutually equipped with filter core 9 center holes, the middle and lower part of cylindrical section is fixedly connected with the annular table 102 that is useful on filter core top, location, is provided with the tapped hole mutually equipped with tapping screw 107 on the outer wall of cylindrical section.

Horizontal communication pipe 105 inwalls of link 10 are equipped mutually with the steam outlet pipe outer wall, and horizontal communication pipe 105 is provided with the limited step 106 for orienting tracheae with the position that vertical breathing pipe 104 is connected.Between horizontal communication pipe 105 and steam outlet pipe 4 by being arranged on shackle member 103 on horizontal communication pipe outer wall and equipped 103 plus screw 11 is fastening mutually with shackle member.

Link of the present utility model adopts teflon injection molded.Be provided with support 5 on outer shell outer wall of the present utility model, as shown in Figure 5, support 5 is connected with engine bin by Studs 6, then by steam outlet pipe 4, the fresh air after filtering is sent into to firing chamber, completes the air filter function.

Assembly process of the present utility model is as described below:

The first step, first pack inner casing 3 in shell 1 into, utilizes the arc convex of the protrusion of shell 1, along 12, inner casing 3 is pressed into to outer casing underpart, then steam outlet pipe 4 is encased in shell 1, the steam outlet pipe connector portions apart from shell 1 apart from being about 25mm.

Second step, put into filter bowl 8 to filter core 9, then the link 10 of packing on filter core 9, then with tapping screw 7, from the tapped hole 107 of filter bowl 8 bottom precession links 10, tightens; Then steam outlet pipe is inserted in the horizontal communication pipe of link 10, undertaken spacing by 106 pairs of steam outlet pipes of limited step 4; Recycling by shackle member 13 and with it equipped plus screw 11 link is fixed on steam outlet pipe 4.

The 3rd step is loaded onto cap 3 on the ready-made parts of second step, then two gap, 15 bendings of shell 1 is compressed to cap 2.

The 4th step, be communicated with the joint of steam outlet pipe with the suction port of motor, finally by Studs, the support on outer shell outer wall and engine compartment cover are fixed together, and completes assembling.

Work of the present utility model becomes as described below:

Air enters shell 1, along the gas-entered passageway between shell and inner casing, flows in inner casing and enters exocoel 13, completes coarse filtration, and the air that now enters exocoel 13 has not had the heavy impurity such as dust.Subsequently, the air of crossing through coarse filtration enters inner chamber 14 through filter core 9 again, and the essence that completes air filters journey.Finally, the air of filtering through essence enters in steam outlet pipe through filter core center hole, vertical breathing pipe, horizontal communication pipe successively, finally enters motor.

Claims

1. an air-strainer, it is characterized in that: comprise sheet metal part through the electrophoretic process shell (1) that is made, be equipped with a bottomless inner casing (3) by the arc convex be arranged on the inwall of shell middle part along (12) in shell, the top of inner casing (3) is by cap (2) sealing; The cavity of described inner casing (3) is by being communicated with engine intake for the outside steam outlet pipe (4) of cleaned air of carrying, by level and relative set, through hole on the sidewall of shell and inner casing supports described steam outlet pipe (4), and the end that steam outlet pipe (4) is arranged in inner casing connects the filtrating equipment for filtered air by link (10);

Described filtrating equipment comprises the cylindrical shape filter core (9) formed by the pine sawdust compacting that is connected to link (10) bottom, filter core (9) outer circumferential sides is coated with height and the corresponding filter bowl of filter core (8), and by cross-under, the tapping screw in the filter core center hole (7) is pressed between filter bowl (8) bottom surface and link (10) described filter core (9);

Be provided with the gas-entered passageway be communicated with between between described side wall of outer shell and interior shell side wall and inner casing bottom and shell bottom surface, be provided with between filter bowl and filter core for flowing through the gap of gas, be provided with the gas channel that is communicated with filter core (9) center hole and steam outlet pipe (4) in link (10).

2. a kind of air-strainer according to claim 1, it is characterized in that: described link (10) comprises right angle type link body (101), be provided with the vertical breathing pipe (104) and the horizontal communication pipe (105) that are connected in link body (101), the bottom of described vertical breathing pipe (104) is communicated with filter core (9) center hole, and horizontal communication pipe (105) is communicated with steam outlet pipe (4); Described link (10) arranges on the outer wall of vertical breathing pipe (104) and is provided with the tapped hole mutually equipped with tapping screw (107).

3. a kind of air-strainer according to claim 2, it is characterized in that: described link (10) arranges vertical breathing pipe (104) position for the cylindrical section mutually equipped with filter core (9) center hole, and the middle and lower part of cylindrical section is fixedly connected with the annular table (102) that is useful on filter core top, location.

4. a kind of air-strainer according to claim 2, it is characterized in that: horizontal communication pipe (105) inwall of described link (10) is equipped mutually with the steam outlet pipe outer wall, and horizontal communication pipe (105) is provided with the limited step (106) for orienting tracheae with the position that vertical breathing pipe (104) is connected; Between described horizontal communication pipe (105) and steam outlet pipe (4) by being arranged on shackle member (103) on horizontal communication pipe outer wall and the plus screw (11) of equipped (103) is fastening mutually with shackle member.

5. according to the described a kind of air-strainer of claim 1 to 4 any one, it is characterized in that: described link adopts teflon injection molded.