CN202398188U

CN202398188U - Double-layer oil filter

Info

Publication number: CN202398188U
Application number: CN2012200083636U
Authority: CN
Inventors: 戴小远; 程辉; 陈迁; 邓怡刚
Original assignee: Wenzhou Nova Filter Cleaner Co Ltd
Current assignee: Wenzhou Nova Filter Cleaner Co Ltd
Priority date: 2012-01-10
Filing date: 2012-01-10
Publication date: 2012-08-29
Anticipated expiration: 2022-01-10

Abstract

The utility model discloses a double-layer oil filter, which comprises a casing. An opening is arranged at the upper end of the casing, a connecting cover is mounted at the opening of the upper end of the casing, a central connecting screw hole and oil inlets are arranged on the connecting cover, a filter element assembly is arranged in the casing, and the filter element assembly comprises an auxiliary filter element, a main filter element and a guide pipe used for connecting the auxiliary filter element and the main filter element. Therefore, compared with an existing oil filter with a single-layer filter element structure, filtering effect of the double-layer oil filter is greatly improved. Besides, an inner sealing ring is added between inner end faces of an upper cover and the connecting cover of auxiliary filter paper, an outer sealing ring is added on the outer end face of the connecting cover, and accordingly, oil-water backflow of the oil inlets on the connecting cover is effectively prevented. Because the sealing ring in the pipe is arranged between a lower cover of the auxiliary filter paper and an upper cover of the main filter paper, leakage between the lower cover of the auxiliary filter paper and the upper cover of the main filter paper is effectively prevented, overall sealing of the oil filter is greatly improved, and accordingly the double-layer oil filter is safer and more reliable in usage.

Description

Double-deck oil filter

Technical field

The utility model relates to a kind of oil filter, is specifically related to a kind of double-deck oil filter.

Background technology

At present, common oil filter is the individual layer oil filter on the market, though can play the effect of filtering machine oil, filter effect is relatively poor.

Summary of the invention

To the deficiency of prior art, the utility model provides a kind of filter effect better, the better double-deck oil filter of sealing property.

For realizing above-mentioned purpose, the utility model provides a kind of double-deck oil filter, comprises shell; Described shell open upper end, the open upper end place of shell is equiped with connection cover, and connection cover is provided with the center and connects screw and oil-in; Be provided with filter core assembly in the shell, the branch filter filter core that described filter core assembly comprises coaxial setting is with main filter filter core and is connected branchs filter filter core and the mozzle of main filter filter core, divide the filter filter core by a minute filter inner support, divide the filter central tube, divide filter filter paper, divide filter the filter paper loam cake, branch is filtered the filter paper lower cover and is constituted; Main filter filter core is made up of main filter filter paper, main filter central tube, main filter filter paper loam cake, main filter filter paper lower cover; Described mozzle upper end is connected screw and connects with the center of connection cover, the lower end of mozzle is connected with main filter filter paper loam cake, divides the filter central tube to be set in outside the mozzle; Divide and be provided with branch filter inner support between filter central tube and the mozzle; Divide filter filter paper wraparound outside minute filter central tube, the axial upper/lower terminal of branch filter filter paper is connected with branch filter filter paper loam cake respectively and filters the filter paper lower cover with dividing, and divides filter filter paper loam cake and connection cover to fix; Caping is joined on branch filter filter paper lower cover and the main filter filter paper; Be provided with support spring between main filter filter paper lower cover and the outer casing bottom, main filter filter paper loam cake is located at the axial upper/lower terminal of main filter filter paper respectively with main filter filter paper lower cover, and described main filter filter paper wraparound is on main filter central tube.

The utility model can further be set to be provided with inner seal ring between the inner side end of branch filter filter paper loam cake and connection cover, is fixed with exterior seal ring on the outside end face of connection cover, divides filter filter paper lower cover to filter between the filter paper loam cake with the master and is provided with the pipe inner seal ring.

The beneficial effect of the utility model is: the employing said structure, and branch filter filter core is filtered the double-decker that filter core constitutes with the master because the filter core assembly of the oil filter that the utility model provided is served as reasons, and therefore can improve the filter effect of oil filter greatly; In addition; Between the inner side end of minute filter filter paper loam cake and connection cover, set up inner seal ring, set up exterior seal ring on the outside end face of connection cover, can prevent effectively that the profit of oil-in on the connection cover from refluxing; Between minute filter filter paper lower cover and main filter filter paper loam cake, the pipe inner seal ring is set; Can effectively prevent the seepage between branch filter filter paper lower cover and the main filter filter paper loam cake, improve the overall tightness of oil filter widely, make the use of oil filter safer reliable.

Description of drawings

Fig. 1 is the structural representation of the utility model.

The specific embodiment

As shown in Figure 1ly provide a kind of double-deck oil filter, comprised shell 1, described shell 1 open upper end; The open upper end place of shell 1 is equiped with connection cover 2; Connection cover 2 is provided with the center and connects screw 21 and oil-in 22, is provided with filter core assembly in the shell 1, the branch filter filter core 3 that described filter core assembly comprises coaxial setting and main filter filter core 4 and is connected branchs and filters the mozzle 5 that filter core 3 and master filter filter core 4; Divide filter filter core 3 by a minute filter inner support 31, divide filter central tube 32, divide filter filter paper 33, divide filter filter paper loam cake 34, divide filter filter paper lower cover 35 to constitute; Main filter filter core 4 is made up of main filter filter paper 41, main filter central tube 42, main filter filter paper loam cake 43, main filter filter paper lower cover 44, and described mozzle 5 upper ends are connected screw 21 and connect with the center of connection cover 2, and the lower end of mozzle 5 is connected with main filter filter paper loam cake 43; Divide filter central tube 32 to be set in outside the mozzle 5; Divide to be provided with branch filter inner support 31 between filter central tube 32 and the mozzle 5, divide and filter filter paper 33 wraparounds outside minute filter central tube 32, divide filter filter paper 33 axial upper/lower terminals to be connected with branch filter filter paper loam cake 34 and branch filter filter paper lower cover 35 respectively; Divide filter filter paper loam cake 34 fixing with connection cover 2; Divide filter filter paper lower cover 35 and main filter filter paper loam cake 43 tops to join, be provided with support spring 6 between main filter filter paper lower cover 44 and shell 1 bottom, main filter filter paper loam cake 43 is located at main filter filter paper 41 axial upper/lower terminals respectively with main filter filter paper lower cover 44; Described main filter filter paper 41 wraparounds are on main filter central tube 42; Divide between the inner side end of filtering filter paper loam cake 34 and connection cover 2 to be provided with inner seal ring 7, be fixed with exterior seal ring 8 on the outside end face of connection cover 2, divide to be provided with between filter filter paper lower cover 35 and the main filter filter paper loam cake 43 and manage inner seal ring 9.

The employing said structure, branch filter filter core 3 is filtered the double-decker that filter core 4 constitutes with the master because the filter core assembly of the oil filter that the utility model provided is served as reasons, and therefore can improve the filter effect of oil filter greatly; In addition; Between the inner side end of minute filter filter paper loam cake 34 and connection cover 2, set up inner seal ring 7, set up exterior seal ring 8 on the outside end face of connection cover 2, can prevent effectively that the profit of oil-in 22 on the connection cover 2 from refluxing; Between minute filter filter paper lower cover 35 and main filter filter paper loam cake 43, pipe inner seal ring 9 is set; Can effectively prevent the seepage between branch filter filter paper lower cover 35 and the main filter filter paper loam cake 43, improve the overall tightness of oil filter widely, make the use of oil filter safer reliable.

Claims

1. a double-deck oil filter comprises shell, described shell open upper end; The open upper end place of shell is equiped with connection cover, and connection cover is provided with the center and connects screw and oil-in, is provided with filter core assembly in the shell; It is characterized in that: the branch filter filter core that described filter core assembly comprises coaxial setting and main filter filter core and is connected branchs and filters the mozzle that filter core and master filter filter core; Divide the filter filter core by a minute filter inner support, divide the filter central tube, divide filter filter paper, divide filter filter paper loam cake, divide filter filter paper lower cover to constitute, main filter filter core is made up of main filter filter paper, main filter central tube, main filter filter paper loam cake, main filter filter paper lower cover, described mozzle upper end is connected the screw connection with the center of connection cover; The lower end of mozzle is connected with main filter filter paper loam cake; Divide the filter central tube to be set in outside the mozzle, divide to be provided with branch filter inner support between filter central tube and the mozzle, divide filter filter paper wraparound outside minute filter central tube; Divide the axial upper/lower terminal of filter filter paper to be connected with branch filter filter paper loam cake and branch filter filter paper lower cover respectively; Divide filter filter paper loam cake and connection cover to fix, caping is joined on branch filter filter paper lower cover and the main filter filter paper, is provided with support spring between master's filter filter paper lower cover and the outer casing bottom; Main filter filter paper loam cake is located at the axial upper/lower terminal of main filter filter paper respectively with main filter filter paper lower cover, and described main filter filter paper wraparound is on main filter central tube.

2. double-deck oil filter according to claim 1; It is characterized in that: divide between the inner side end of filtering filter paper loam cake and connection cover to be provided with inner seal ring; Be fixed with exterior seal ring on the outside end face of connection cover, divide between filter filter paper lower cover and the main filter filter paper loam cake to be provided with the pipe inner seal ring.