CN2836888Y

CN2836888Y - Filter core assembly of filter device

Info

Publication number: CN2836888Y
Application number: CN 200520076086
Authority: CN
Inventors: 黄圣达
Original assignee: ZHANGJIAGANG SHENGMEI MACHINERY CO Ltd
Current assignee: ZHANGJIAGANG SHENGMEI MACHINERY CO Ltd
Priority date: 2005-09-30
Filing date: 2005-09-30
Publication date: 2006-11-15
Anticipated expiration: 2015-09-30

Abstract

The utility model relates to a filter core assembly for a filter, which comprises an upper and a lower covers arranged on both ends of a filter core, wherein an outer filter core, a middle filter core and an inner filter core are arranged between the upper and the lower covers. The middle part of the lower cover corresponding to the inner side of the inner filter core is provided with liquid outlet holes; a plurality of liquid outlet holes are arranged in an annular region of the lower cover corresponding to the outer filter core and the inner filter core, and are respectively communicated with the liquid outlet hole in the middle of the lower cover; a plurality of liquid inlet holes are arranged in an annular region of the lower cover corresponding to the middle filter core and the inner filter core; a plurality of liquid inlet holes are also arranged in an annular region of the upper cover corresponding to the middle filter core and the inner filter core; The utility model has the advantages that the structure of a filter is compact and the volume is small; the flow quantity of the filter in unit time can be effectively improved by the arrangement of multiple layers of filter cores, and the service life of the filter can be extended.

Description

Cleaner filter core assembly

Technical field

The utility model belongs to the cleaner field, relates in particular to a kind of filter cored structure that is used for filter fuel, lubricated wet goods fluid.

Background technology

Existing cleaner all is by base, be arranged on the hollow columnar tank body on the base, and the cleaner filter core assembly composition that is arranged on tank interior and is fixedly connected with base, this cleaner filter core assembly comprises a filter core, be arranged on the loam cake and the lower cover at filter core two ends, filter core is made up of filter core support and the filter screen that is arranged on filter core support outside usually, filter core is arranged on the base by lower cover, offer in the base and be used for two passages that fluid flows into and flows out, one of them passage communicates with the inside of filter core by lower cover, and another passage directly communicates with the outside of filter core.This cleaner in use, unfiltered fluid is by flow through filter core and filter of the passage in the base, fluid after filtering then flows out from another passage, thereby realizes the filtering function of cleaner.Adopt the cleaner of above-mentioned cleaner filter core assembly mainly to have following shortcomings in use: owing to only be provided with a filter core in this cleaner filter core assembly, therefore, when cleaner is used to filter, be subjected to the restriction of filter element filtering effective area, fluid flow when cleaner filters is less, can not reach high filtration efficiency.Thereby, adopting under the situation of single filter core, if improve the time fluid flow that cleaner filters, a kind of method is exactly the fluid pressure when further adding big filter, but easily like this causes the filter core damage, and effect and not obvious; Another kind of way is exactly the surface area that increases filter core, promptly increases the volume of filter core and cleaner, but again certainly will greatly increase the manufacturing cost of cleaner like this, and influence installing and using of cleaner.

Summary of the invention

The purpose of this utility model is to provide a kind of can effectively increase the filter element filtering area under the constant situation of cleaner volume, and improves the cleaner rate of filtration, improves the cleaner filter core assembly of filter efficiency.

Further purpose of the present utility model is to provide a kind of cleaner filter core assembly that can improve the filter screen effective filtration area.

For realizing the purpose of this utility model, a kind of cleaner filter core assembly, comprise the loam cake and the lower cover that are arranged on the filter core two ends, be provided with outer filter core between described loam cake and the lower cover, middle filter core and inner filter core, offer fluid hole with the inboard corresponding lower cover of inner filter core middle part, with offer some fluid holes in outer filter core and the corresponding lower cover annular section of middle filter core, these fluid holes are connected with the fluid hole at lower cover middle part respectively, with offer some inlet openings in middle filter core and the corresponding lower cover annular section of inner filter core, and also offer some inlet openings in middle filter core and the corresponding loam cake annular section of inner filter core.

For realizing further purpose of the present utility model, a kind of cleaner filter core assembly also comprises: described outer, in, inner filter core respectively by outer, in, inner filter core support and filter screen form, filter screen is coated on respectively outward, in, the outside of inner filter core support; Described outer, in, the outer wall upper edge of inner filter core support its axially have respectively some evenly distributed bar shaped convex tendons be set, filter screen respectively with outer, in, bar shaped convex tendon on the inner filter core rack outer surface contacts.

The utility model has the advantages that: the cleaner structure compactness, volume is less; By the setting of multilayer filter core, effectively improved the flow of cleaner in the unit interval; And can prolong service life of cleaner.

Description of drawings

Below in conjunction with accompanying drawing the utility model cleaner filter core assembly is described in further detail:

Fig. 1 is the decomposition texture stereogram of the utility model cleaner filter core assembly;

Fig. 2 is the decomposition texture stereogram of the utility model cleaner filter core assembly other direction;

Fig. 3 is the structure cutaway view after the utility model cleaner filter core assembly assembling.

Among the figure: 1, loam cake, 11, inlet opening, 2, lower cover, 21, fluid hole, 22, fluid hole, 23, inlet opening, 3, outer filter core, 31, outer filter core support, 311, the bar shaped convex tendon, 32, filter screen, 4, middle filter core, 41, middle filter core support, 411, bar shaped convex tendon, 42, filter screen, 5, inner filter core, 51, inner filter core support, 511, the bar shaped convex tendon, 52, filter screen, 6, bolt, 7, bolt, 8, sealing ring.

The specific embodiment

As Fig. 1, shown in 2 and 3, a kind of cleaner filter core assembly, filter core 3 outside between loam cake 1 and lower cover 2, being provided with, middle filter core 4 and inner filter core 5, offer fluid hole 21 with inner filter core 5 inboard corresponding lower covers 2 middle parts, with offer some fluid holes 22 in outer filter core 3 and middle filter core 4 corresponding lower cover 2 annular sections, these fluid holes 22 are connected with the fluid hole 21 at lower cover 2 middle parts respectively, with offer some inlet openings 23 in middle filter core 4 and inner filter core 5 corresponding lower cover 2 annular sections, with also offer some inlet openings 11 in middle filter core 4 and inner filter core 5 corresponding loam cake 1 annular sections, in the utility model, these inlet openings 11,23 and the quantity of fluid hole 22 be three, they evenly are arranged on respectively usually, lower cover 1, on 2, certainly, above-mentioned inlet opening 11,23 and the quantity of fluid hole 22 also can be provided with more than two or three.

As shown in Figure 1, 2, 3, above-mentioned inner filter core 5 is fixedly connected with upper and lower cover 1,2 by three bolts 6 and three bolts 7 respectively, thereby outer filter core 3 and middle filter core 4 are fixedly installed between loam cake 1 and the lower cover 2 together.In the utility model, the quantity of

bolt

6,7 generally can adopt more than two or three; In addition,

bolt

6,7 also can be connected with among outer filter core 3, the middle filter core 4 any, realize that equally also outer filter core 3, middle filter core 4, inner filter core 5 are fixedly installed togather with loam cake 1, lower cover 2, be used for as long as fixedly install the piece of taking that

bolt

6,7 fixes at this moment at the place, two ends of this filter core support.

As illustrated in fig. 1 and 2, outside above-mentioned, in,

inner filter core

3,4,5 respectively by outside, in, inner

filter core support

31,41,51 and

filter screen

32,42,52 form, outward, in, inner

filter core support

31,41, it axially is respectively arranged with some evenly distributed bar shaped convex tendons 311 51 outer wall upper edge, 411,511,

filter screen

32,42,52 be coated on respectively outside, in, inner

filter core support

31,41, the bar shaped convex tendon 311 of 51 outer surfaces, 411, on 511, in the present embodiment, outward, in, inner

filter core support

31,41, also bar shaped convex tendon 311 can be set on 51 the outer wall, 411,511, but bar shaped convex tendon 311 is set, 411, after 511, can effectively reduce the contact area between filter screen and the filter core rack outer surface, thereby the effective filtration area when increasing strainer filtering is further accelerated the rate of filtration of cleaner.

Shown in Fig. 1,2 and 3, above-mentioned loam cake 1 and outer, in, between the

inner filter core

3,4,5 and lower cover 2 and in, also be respectively arranged with sealing ring 8 between the

inner filter core

4,5.

As shown in Figure 3, cleaner filter core assembly in the utility model in use, the fluid that need to filter from the feed pathway of pedestal flow into tank body and outside between the filter core 3 in the space, segment fluid flow directly filters through the filter screen 32 on outer filter core 3 surfaces, enter then between outer filter core 3 and the middle filter core 4, remaining segment fluid flow is then respectively from the inlet opening 23 of the inlet opening 11 of loam cake 1 and lower cover 2 enters between filter core 4 and the inner filter core 5, then, its part enters the inboard of inner filter core 5 after inner filter core 5 filters, another part through in filter core 4 enter after filtering outside between filter core 3 and the middle filter core 4, all are flowed out by lower cover 2 fluid holes 21 and lower cover 1 fluid hole 22 of outer filter core 3 between middle filter core 4 of inner filter core 5 inboards respectively through the fluid that filters again, thereby realize the filtration of fluid.Owing to be provided with three metafiltration cores in the above-mentioned cleaner filter core assembly, and three metafiltration cores all can bring into play its filtering function separately, therefore, can effectively improve the filter area of filter core in limited cleaner space, give full play to the filter efficiency of cleaner.

Claims

1, a kind of cleaner filter core assembly, comprise the loam cake and the lower cover that are arranged on the filter core two ends, it is characterized in that: be provided with outer filter core (3) between described loam cake (1) and the lower cover (2), middle filter core (4) and inner filter core (5), offer fluid hole (21) with the inboard corresponding lower cover of inner filter core (5) (2) middle part, with offer some fluid holes (22) in outer filter core (3) and the corresponding lower cover of middle filter core (4) (2) annular section, these fluid holes (22) are connected with the fluid hole (21) at lower cover (2) middle part respectively, with offer some inlet openings (23) in middle filter core (4) and the corresponding lower cover of inner filter core (5) (2) annular section, and also offer some inlet openings (11) in middle filter core (4) and the corresponding loam cake of inner filter core (5) (1) annular section.

2, a kind of cleaner filter core assembly according to claim 1 is characterized in that: described inner filter core (5) is fixedly installed on the upper and lower cover (1,2) by some bolts (6,7) respectively.

3, a kind of cleaner filter core assembly according to claim 1 and 2, it is characterized in that: described outer, in, inner filter core (3,4,5) respectively by outer, in, inner filter core support (31,41,51) and filter screen (32,42,52) form, filter screen (32,42,52) is coated on respectively outward, in, the outside of inner filter core support (31,41,51).

4, a kind of cleaner filter core assembly according to claim 3, it is characterized in that: described outer, in, the outer wall upper edge of inner filter core support (31,41,51) its axially be respectively arranged with some evenly distributed bar shaped convex tendons (311,411,511), filter screen (32,42,52) respectively with outer, in, bar shaped convex tendon (311,411,511) on inner filter core support (31,41, the 51) outer surface contacts.

5, a kind of cleaner filter core assembly according to claim 1 and 2 is characterized in that: described loam cake (1) and outer, in, between the inner filter core (3,4,5), lower cover (2) and in, inner filter core is respectively arranged with sealing ring (8) between (4,5).