CN220103471U

CN220103471U - Oil filter

Info

Publication number: CN220103471U
Application number: CN202321488980.5U
Authority: CN
Inventors: 孟令彬; 吴凤岭; 王喜阳; 岳绍研
Original assignee: Xinxiang Yuanlong Aviation Equipment Co ltd
Current assignee: Xinxiang Yuanlong Aviation Equipment Co ltd
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2023-11-28
Anticipated expiration: 2033-06-12

Abstract

The utility model provides an oil filter, which comprises a lower shell with an opening at the upper end, wherein the upper end of the lower shell is in threaded connection with the upper shell, one side of the upper shell is provided with a liquid inlet, the other side of the upper shell is provided with a liquid outlet, the lower end of the upper shell is provided with a connecting port communicated with the liquid outlet, a filter assembly is arranged in the lower shell, the filter assembly comprises a lower sealing cover, an outer filter cylinder and an inner filter cylinder are sequentially arranged at intervals from outside to inside at the upper end of the lower sealing cover, the upper end of the outer filter cylinder is in sealing connection with the connecting port, an upper sealing cover is fixed at the upper end of the inner filter cylinder, the upper sealing cover is arranged at intervals with the connecting port, the outer filter cylinder is communicated with the liquid inlet, and a liquid inlet communicated with the inner filter cylinder is arranged on the lower sealing cover. According to the utility model, through the cooperation of the outer filter cylinder, the inner filter cylinder and the liquid inlet, the double-channel filtration of oil is realized, and the filtration efficiency is improved.

Description

Oil filter

Technical Field

The utility model relates to the technical field of filters, in particular to an oil filter.

Background

The compressor of the refrigerating system needs to be lubricated or cooled by oil, and the oil is easy to contain impurities along with long-term use and needs to be filtered. Most of the existing oil filters are single-channel filters, namely oil is discharged through a liquid outlet after being filtered by a single filter cylinder, and the filtering area is limited, so that the filtering efficiency is low.

Disclosure of Invention

The utility model provides an oil filter, which realizes double-channel filtration of oil liquid and improves filtration efficiency through the cooperation of an outer filter cylinder, an inner filter cylinder and a liquid inlet.

The technical scheme of the utility model is realized as follows: the utility model provides an oil filter, including upper end open-ended lower casing, the upper end threaded connection of lower casing has the upper casing, one side of upper casing is provided with the inlet, the opposite side is provided with the liquid outlet, the lower extreme of upper casing is provided with the communicating connector of liquid outlet, be provided with filter unit in the lower casing, filter unit includes lower sealed lid, the upper end of lower sealed lid is from outside to interior interval in proper order to be provided with outer filter cartridge and interior filter cartridge, the upper end and the connector sealing of outer filter cartridge meet, the upper end of interior filter cartridge is fixed with sealed lid, upper sealed lid and connector interval set up, communicate with each other with the inlet between outer filter cartridge and the lower casing, be provided with the communicating inlet of interior filter cartridge on the sealed lid down. The outer filter cylinder is used for filtering oil from outside to inside, and the inner filter cylinder is used for filtering oil from inside to outside through the liquid inlet holes.

Further, an annular upper end cover is fixed at the upper end of the outer filter cylinder and clamped at the outer side of the connecting port, and a first sealing ring is arranged between the upper end cover and the connecting port.

Further, the pore size of the outer filter cartridge mesh decreases from outside to inside; the pore size of the inner filter cylinder mesh decreases from inside to outside.

Further, an annular outer U-shaped groove and an annular inner U-shaped groove are formed in the lower sealing cover, the lower end of the outer filter cylinder is fixed in the outer U-shaped groove, and the lower end of the inner filter cylinder is fixed in the inner U-shaped groove.

Further, a second sealing ring is arranged at the threaded connection part of the upper shell and the lower shell.

The utility model has the beneficial effects that:

the filtering component comprises the outer filter cylinder, the inner filter cylinder and the liquid inlet communicated with the inner filter cylinder, so that double-channel filtering is realized, filtering efficiency is improved, a part of oil can be filtered by the outer filter cylinder and then discharged through the connecting port, and a part of oil is filtered by the liquid inlet and the inner filter cylinder and then discharged through the connecting port. The upper sealing cover is arranged at intervals with the connecting port, so that filtered oil can smoothly enter the connecting port and be discharged through the liquid outlet.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a schematic view of a filter assembly.

The device comprises a lower shell 1, an upper shell 2, a second sealing ring 3, a liquid inlet 4, a liquid outlet 5, a connecting port 6, a lower sealing cover 7, an outer filter cartridge 8, an inner filter cartridge 9, an outer U-shaped groove 10, an inner U-shaped groove 11, an upper end cover 12, a first sealing ring 13, an upper sealing cover 14, a first outer framework 15, a first filter screen 16, a first inner framework 17, a second outer framework 18, a second filter screen 19 and a second inner framework 20.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, an oil filter comprises a lower casing 1 with an opening at the upper end, an upper casing 2 is connected with the upper end of the lower casing 1 in a threaded manner, a second sealing ring 3 is installed at the threaded connection position of the upper casing 2 and the lower casing 1, and the tightness of the threaded connection position is ensured through the second sealing ring 3. One side of the upper shell 2 is provided with a liquid inlet 4, the other side is provided with a liquid outlet 5, and the lower end of the upper shell 2 is provided with a connecting port 6 communicated with the liquid outlet 5.

The lower shell 1 is internally provided with a filter assembly, the filter assembly comprises a lower sealing cover 7, the lower sealing cover 7 is arranged at intervals with the inner bottom of the lower shell 1, an outer filter cylinder 8 and an inner filter cylinder 9 are sequentially arranged at intervals from outside to inside at the upper end of the lower sealing cover 7, an annular outer U-shaped groove 10 and an annular inner U-shaped groove 11 are arranged on the lower sealing cover 7, the lower end of the outer filter cylinder 8 is fixedly bonded in the outer U-shaped groove 10, the lower end of the inner filter cylinder 9 is fixedly bonded in the inner U-shaped groove 11, the outer filter cylinder 8 and the lower shell 1 are communicated with the liquid inlet 4, a liquid inlet 21 communicated with the inner filter cylinder 9 is arranged on the lower sealing cover 7, and the liquid inlet 21 is positioned on the lower sealing cover 7 at the inner side of the inner U-shaped groove 11 and is communicated with the inner part of the inner filter cylinder 9.

The upper end of the outer filter cylinder 8 is fixedly adhered with an annular upper end cover 12, the upper end cover 12 is clamped on the outer side of the connecting port 6, a first sealing ring 13 is arranged between the upper end cover 12 and the connecting port 6, and the upper end cover 12 is in sealing connection with the connecting port 6. An upper sealing cover 14 is fixed at the upper end of the inner filter cylinder 9, and the upper sealing cover 14 is arranged at intervals with the connecting port 6, so that the filtrate filtered by the outer filter cylinder 8 and the inner filter cylinder 9 is conveniently discharged through the connecting port 6.

As shown in fig. 1 and 2, the outer filter cartridge 8 includes a first outer frame 15, a first filter screen 16 and a first inner frame 17, which are sequentially disposed from outside to inside, the mesh size of the first outer frame 15 being larger than that of the first inner frame 17, and the mesh size of the first filter screen 16 being reduced from outside to inside; the inner filter cartridge 9 comprises a second outer framework 18, a second filter screen 19 and a second inner framework 20 which are sequentially arranged from outside to inside, the mesh size of the second outer framework 18 is smaller than that of the second inner framework 20, and the mesh size of the second filter screen 19 is reduced from inside to outside. I.e. the oil of the outer cartridge 8 is filtered from the outside to the inside, while the oil of the inner cartridge 9 is filtered from the inside to the outside.

The use method of the oil filter comprises the following steps: the oil enters the lower shell 1 through the liquid inlet 4, a part of the oil is discharged through the connection port 6 and the liquid outlet 5 after being filtered by the outer filter cartridge 8, and a part of the oil enters the inner filter cartridge 9 through the liquid inlet 21 and is discharged through the connection port 6 and the liquid outlet 5 after being filtered by the inner filter cartridge 9.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides an oil filter, includes upper end open-ended lower casing, and the upper end threaded connection of lower casing has the casing, and one side of going up the casing is provided with the inlet, and the opposite side is provided with the liquid outlet, and the lower extreme of going up the casing is provided with the communicating connector of with the liquid outlet, its characterized in that: the lower shell is internally provided with a filtering component, the filtering component comprises a lower sealing cover, the upper end of the lower sealing cover is sequentially provided with an outer filter cylinder and an inner filter cylinder at intervals from outside to inside, the upper end of the outer filter cylinder is in sealing connection with a connecting port, the upper end of the inner filter cylinder is fixedly provided with an upper sealing cover, the upper sealing cover is arranged at intervals with the connecting port, the outer filter cylinder is communicated with a liquid inlet through the lower shell, and the lower sealing cover is provided with a liquid inlet through the inner filter cylinder.

2. An oil filter according to claim 1, wherein: the upper end of the outer filter cylinder is fixed with an annular upper end cover, the upper end cover is clamped at the outer side of the connecting port, and a first sealing ring is arranged between the upper end cover and the connecting port.

3. An oil filter according to claim 1, wherein: the pore diameter of the outer filter cylinder mesh is reduced from outside to inside; the pore size of the inner filter cylinder mesh decreases from inside to outside.

4. An oil filter according to any one of claims 1-3, characterized in that: the lower sealing cover is provided with an annular outer U-shaped groove and an annular inner U-shaped groove, the lower end of the outer filter cylinder is fixed in the outer U-shaped groove, and the lower end of the inner filter cylinder is fixed in the inner U-shaped groove.

5. An oil filter according to claim 1, wherein: the threaded connection part of the upper shell and the lower shell is provided with a second sealing ring.