CN201026431Y

CN201026431Y - Disassemble filter core

Info

Publication number: CN201026431Y
Application number: CNU2007201080899U
Authority: CN
Inventors: 吴雪荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-12
Filing date: 2007-04-12
Publication date: 2008-02-27
Anticipated expiration: 2017-04-12

Abstract

A dismountable decomposing filter element comprises an upper end cover, a lower end cover, an internal screen net, an external screen net and foldable filtering paper which is arranged in the interlayer between the internal screen net and the external screen net, wherein, the internal wall around through holes of the upper end cover and the lower end cover is provided with a locating groove which is provided with a plurality of threaded holes; two interfaces of the internal screen net and the external screen net are provided with ring locating skirt borders which extend in a radial direction and are provided with fixed holes which are matched with the threaded holes on the locating groove of the end covers; two end surfaces of the foldable ring filtering paper are respectively provided with a paper ring sheet with a through hole in the middle and the internal and external diameters of the paper ring sheet are respectively larger than the internal and external diameters of the ring filtering paper. The internal screen net and the external screen net of the utility model make relative matching parts into a dismountable decomposing type by connecting bolts with the upper end cover and the lower end cover and the filtering paper can be changed only by revolving out the bolts on the upper end cover and the lower end cover, pulling out and dismounting the internal screen net and the external screen net of the locating groove, which then achieves the purpose of changing filtering paper in a single and fission way and solves the technical problem of wholly changing the filtering element when changing the filtering paper.

Description

Detachable and separable filter element

Technical field

The utility model relates to a kind of filter core that is installed in cleaner inside, and the papery filter core of more specifically saying so and belonging to a kind of cleaner for example is installed in diesel fuel and is the papery filter core in the coarse cleaner.

Background technology

The purpose that diesel fuel filter is installed in diesel fuel system is: before diesel oil enters injection pump, remove the impurity and the moisture that are mingled in wherein, to reduce the wearing and tearing and the corrosion of injection pump and fuel injector precision pair, guarantee the diesel engine operate as normal.The structure of existing papery filter core is made of end cap up and down, interior outer leaching net (also have do not establish outer leaching net) and collapsible annular filter paper three parts usually, end cover structure is consistent up and down, be the bottle cap shape, the middle part of bottle cap is provided with through hole, interior outer leaching net is rolled into tubular by thin type iron plate and forms, the filtering holes of gathering on the barrel.The tubular two-port of Inner filter net connects with the through hole of end cap up and down respectively, and the Inner filter net periphery is nested with filter paper, and the filter paper periphery is nested with outer leaching net again.

The problem that existing filter element exists is: end cap up and down, interior outer leaching net and filter paper three parts are monoblock type and dispatch from the factory, filter paper one-time fixes on the interior capping that is glued to end cap up and down, therefore, the filter paper life-span one is to can only comprising end cap up and down, interior outer leaching net discards at interior whole filter core, and renew cartridge more again, add that filter paper is a kind of rapid wear material, service life, weak point generally had only about 30 days, therefore, frequent monoblock type more renew cartridge is not only wasted resource, also can increase the vehicle operating cost, particularly some driver is in order to save the vehicle operating cost, more renew cartridge often lags behind, and filter screen easily causes damage to associated components after stopping up, and also can influence the normal safety traffic of vehicle when serious.

Summary of the invention

For overcoming above shortcomings in the prior art, the utility model aims to provide a kind of detachable and separable filter element with new structure, and that this filter core improves is simple, it is convenient to decompose, and does not more need integral replacing during renew cartridge, gets final product and only change filter paper.

For achieving the above object, the utility model has adopted following technical scheme: this detachable and separable filter element, comprise end cap, interior outer leaching net up and down, and be positioned at collapsible filter paper three parts in the middle of the outer leaching net, end cover structure is consistent up and down, be the bottle cap shape, the end cap middle part is provided with through hole, and interior outer leaching net is rolled into tubular by thin type iron plate and forms, the filtering holes of gathering on the barrel, it is characterized in that: have locating slot on the inwall around the upper and lower end cap through hole, have some screws in the groove; The two-port of inside and outside filter screen has shirt rim, location radially, and the location has fixing hole on the shirt rim, and the screw on this fixing hole and the end cap is complementary; The both ends of the surface of collapsible annular filter paper are respectively equipped with a papery ring plate, and papery ring plate middle part has through hole, and the interior external diameter of papery ring plate is respectively greater than the interior external diameter of annular filter paper.

During concrete enforcement, be equipped with the soft material packing ring in the locating slot.

During concrete enforcement, the shirt rim, location of Inner filter net two-port is folded to the tubular inner edge, and the shirt rim, location of outer leaching net two-port is folded to the tubular outer rim.

During concrete enforcement, outer leaching net is a squirrel-cage locating rack, and the two ends of squirrel-cage locating rack are annular ring, is provided with on annular ring and upper end cover, fixing hole that bottom end cover locating slot screw is corresponding, is provided with support bar up and down between the annular ring.

Beneficial effect: outer leaching net connects with end cap up and down by bolt in the utility model, make relevant even part become detachable and separable, in addition, after the both ends of the surface of annular filter paper are provided with the papery ring plate of fixing shape, because the interior external diameter of papery ring plate is respectively greater than external diameter in the annular filter paper end face, the shirt rim, location at interior outer leaching net two ends can be pressed on the papery ring plate in the upper and lower end cap through hole locating slot on every side, thereby filter paper is fixed in the end cap locating slot.When changing filter paper, only need to screw out the bolt that upper and lower side covers, can take off filter paper after interior outer leaching net is extracted, decomposed in the locating slot and change, thereby realize that split changes the purpose of filter paper.

For the utility model technology contents that sharpens understanding, be described further below in conjunction with drawings and Examples.

Description of drawings

Fig. 1 is the assembly structure schematic diagram of an embodiment of the utility model.

Fig. 2 is a squirrel-cage locating rack structural representation.

The specific embodiment

Sequence number is represented respectively among the figure: upper end cover 10, end face 101, screw 102, through hole 103, screw 104; Inner filter net 20, tubular upper port 201, shirt rim 202, location, fixing hole 203, filtering holes 204; Annular filter paper 30, the annular scraps of paper 301, scraps of paper through hole 302, breach 303; Outer leaching net 40, fixing hole 401,401a, fixing hole 402,402a, filtering holes 403, shirt rim 404, location, annular ring 404a, 405a, shirt rim 405, location, support bar 406, bottom end cover 50, through hole 501, locating slot 502.

Referring to Fig. 1 (among the figure draw and be positioned at the annular scraps of paper of filter paper 30 lower surfaces in the end), the two ends up and down of this filter core are respectively upper end cover 10, bottom end cover 50, and the shape of end cap and structure are consistent fully up and down, are in opposite directions to be provided with.End face 101 middle parts of upper end cover 10 are provided with the through hole 103 (sometimes, the hole wall of this through hole 103 is provided with internal thread, and this internal thread is used for spinning with extraneous filter cartridge seat) for medium (for example: air, fuel oil etc.) circulation.For Inner filter net 20, outer leaching net 40 are installed, on the inwall of end cap through hole 103 peripheries up and down, be provided with an annular positioning groove 502, this locating slot 502 is used to admit Inner filter net 20, outer leaching net 40, and the annular scraps of paper 301 that are arranged in both interlayer filter paper 30, the shirt rim, location on Inner filter net 20, the outer leaching net 40 goes out filter paper 30 end face parts and is pressed in the annular positioning groove 502 the annular scraps of paper 301 are wide.Laying the soft material packing rings in the locating slot 502, mainly is to guarantee that the annular scraps of paper 301 do not slide as the purpose of rubber washer.

Between upper end cover 10 and the bottom end cover 50 Inner filter net 20 is set, Inner filter net 20 peripheries are nested with filter paper 30, filter paper 30 peripheries are nested with outer leaching net 40 again.Inner filter net 20 adopts thin type iron plate to be rolled into tubular, and the shirt rim, location 202 on it is folded to tubular inner edge (can certainly be folded to outer rim).Outer leaching net 50 also be rolled into tubular by thin type iron plate, 404,402 of the shirt rims, location of its two-port are folded to tubular outer rim (can certainly be folded to inner edge).

Detachable and separable between end cap, interior outer leaching net and filter paper connects purpose in order to reach up and down, after on the inwall around the through hole 103 of upper end cover 10, bottom end cover 50 locating slot 502 being set, in groove to outside have some screws 102,104, and, this screw 102,104 respectively with shirt rim 202, Inner filter net 20 location on fixing hole 203, therefore the corresponding one by one coupling of fixing hole 401 on the shirt rim 404, outer leaching net 40 location, can be fixed on upper and lower side to interior outer leaching net by bolt during installation and cover.

The purpose of shirt rim, location is set: be to utilize with the fixing of end cap up and down on the inwall that filter paper 30 is positioned at end cap up and down in Inner filter net 20, outer leaching net 40 two ends peristomas.Its method is: the annular scraps of paper 301 that have scraps of paper through hole 302 in the middle of the both ends of the surface of collapsible filter paper 30 are pasted respectively, make the ring-type width of the ring-type width of these annular scraps of paper 301 greater than filter paper 30, therefore, the shirt rim, location also just will be wide goes out the part compacting firmly and locate after fixing.Be enclosed within the periphery of Inner filter net 20 in order to ensure filter paper 30 smoothly through its mesopore, go out part at the annular scraps of paper 301 to inner width and have breach 303.

Referring to Fig. 2, when if some occasion is not established outer leaching net 40, for filter paper 30 is located, can on the position of original outer leaching net 40, a squirrel-cage locating rack be set, the two ends of squirrel-cage locating rack are annular ring 404a, 405a, the structure of this annular ring 404a, 405a should be with shirt rim, location 404,405 structures of above-mentioned outer leaching net 40 consistent, and be provided with on annular ring 404a, the 405a with upper end cover 10, bottom end cover 50 on the corresponding fixing hole 401a of locating slot 502 screws 104.At upper and lower annular ring 404a, 405a several support bars 406 are set.

Filter paper 30 that the utility model is used and papery ring plate 301 are dispatched from the factory after preferably making integral body by producer, and repairing department or driver change just more convenient, quick like this; Certainly, if consider convenient transportation, both also can pack the back transportation respectively, row replacing operation again after by repairing department or driver both being pasted then.

The above-mentioned filtering material of the utility model removes the filter paper place, also can adopt materials such as copper mesh, filter cloth, and these simple transformation also should belong to the protection domain of this patent.

Claims

1. detachable and separable filter element, comprise: end cap (10 up and down, 50), interior outer leaching net (20,40), and be positioned at collapsible filter paper (30) three parts in the middle of the outer leaching net (20,40), end cap (10 up and down, 50) structure is consistent, is the bottle cap shape, and the end cap middle part is provided with through hole (103), interior outer leaching net (20,40) be rolled into tubular by thin type iron plate and form, the filtering holes (204,403) of gathering on the barrel, it is characterized in that: upper and lower end cap (10,50) have locating slot (502) on through hole (103) inwall on every side, have some screws (102,104) in the groove; The two-port of inside and outside filter screen (20,40) has shirt rim, location (202,404,405) radially, and the location has fixing hole (203,401,402) on the shirt rim, and the screw on this fixing hole and the end cap (104) is complementary; The both ends of the surface of collapsible annular filter paper (30) are respectively equipped with a papery ring plate (301), and papery ring plate (301) middle part has through hole (302), and the interior external diameter of papery ring plate (301) is respectively greater than the interior external diameter of annular filter paper (30).

2. a kind of detachable and separable filter element as claimed in claim 1 is characterized in that: locating slot is equipped with the soft material packing ring in (502).

3. a kind of detachable and separable filter element as claimed in claim 1 is characterized in that: the shirt rim, location (202) of Inner filter net (20) two-port is folded to the tubular inner edge, and the shirt rim, location (404,405) of outer leaching net (40) two-port is folded to the tubular outer rim.

4. as claim 1 or 3 described a kind of detachable and separable filter elements, it is characterized in that: outer leaching net (40) is a squirrel-cage locating rack, the two ends of squirrel-cage locating rack are annular ring (404a, 405a), on annular ring (404a, 405a), be provided with and upper end cover (10), fixing hole (401a) that bottom end cover (50) locating slot screw (104) is corresponding, be provided with support bar (406) between the annular ring (404a, 405a) up and down.