Movable sealing ring engine oil filter

Abstract

According to the technical scheme, the oil filter with the movable sealing rings comprises a shell, through holes are formed in the top and the bottom of the shell respectively, a filtering assembly communicated with the through holes is arranged at the bottom in the shell, the sealing rings are arranged in the through holes respectively, and the sealing rings are of a T-shaped structure. An oil pipe is inserted into the sealing ring in a sealed mode and is of a T-shaped structure, the large-diameter end of the oil pipe is located in the shell, a limiting ring is arranged on the portion, located outside the shell, of the oil pipe in a threaded mode, and the diameter of the limiting ring is smaller than the diameter of the side, located outside the shell, of the sealing ring. The position of the limiting ring on the oil pipe is changed through threaded connection between the limiting ring and the oil pipe, the limiting ring continuously gets close to the shell to press and fix the sealing ring so that the sealing ring can play a sealing role, meanwhile, the structure is simple, assembly and disassembly are convenient, and the practical value of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil filters, in particular to a movable sealing ring oil filter. Background Technique

[0002] During the operation of the engine, metal chips, dust, carbon deposits and colloidal precipitates oxidized at high temperature, water, etc. are continuously mixed into the lubricating oil. The function of the oil filter is to filter out these mechanical impurities and colloids, keep the lubricating oil clean, and extend its service life. The oil filter should have the properties of strong filtering ability, small flow resistance, and long service life.

[0003] However, the existing oil filters not only have a complex structure, but also have relatively low sealing performance, low pressure resistance, and are inconvenient to disassemble. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a movable sealing ring oil filter.

[0005] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A movable sealing ring oil filter, including a housing, through holes are provided at both the top and bottom of the housing, and a filtering component communicating with the through holes is arranged at the inner bottom of the housing. Sealing rings are arranged in the through holes. The sealing rings are arranged in a T-shaped structure, and the end with a larger diameter of the sealing ring is located outside the housing. A tubing is hermetically inserted into the sealing ring. The tubing is arranged in a T-shaped structure, and the end with a larger diameter of the tubing is located inside the housing. A limiting ring is threadedly arranged on the part of the tubing outside the housing, and the diameter of the limiting ring is smaller than the diameter of the side of the sealing ring outside the housing.

[0007] Preferably, the bottom surface of the limiting ring is flat.

[0008] Preferably, the bottom surface of the limiting ring is arc-shaped.

[0009] Preferably, a stepped platform is arranged on the side of the limiting ring close to the housing, and the outer diameter of the limiting ring is always the same.

[0010] Preferably, the filtering component includes a filter cartridge arranged at the inner bottom of the housing. A plurality of filter holes are provided on the filter cartridge, and a filter paper is arranged outside the filter cartridge.

[0011] Preferably, the inner diameter of the open end of the filter cartridge is larger than the diameter of the through hole, and the end with a larger diameter of the bottom tubing is located inside the filter cartridge.

[0012] Compared with the existing technology, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model changes the position of the limit ring on the oil pipe through the threaded connection between the limit ring and the oil pipe. On the one hand, the oil pipe is fixed on the outer shell, thus realizing the stable connection between the oil pipe and the outer shell. On the other hand, the limit ring continuously approaches the outer shell to press and fix the sealing ring, so that the sealing ring plays a sealing role. At the same time, the structure is simple, the loading and unloading are convenient, and the practical value of the device is improved;

[0014] 2. The utility model has a gap between the outer shell and the threaded part of the oil pipe through the stepped platform on the side of the limit ring close to the outer shell, avoiding the influence of the threaded part of the oil pipe on the seal, thus ensuring the sealing effect;

[0015] 3. The utility model circumferentially presses and fixes the sealing ring through the limit ring with a flat bottom surface, so that the oil passing through the through hole will not leak. The limit ring with an arc-shaped bottom surface reduces the contact area between the limit ring and the sealing ring, thereby increasing the pressure generated when the limit ring is pressed down, which is conducive to the sealing ring playing a good and stable sealing role. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The disclosure of the present utility model will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present utility model. In the drawings, the same reference numerals are used to refer to the same components.

[0017] Wherein:

[0018] Figure 1 is the overall structural schematic diagram of the present utility model;

[0019] Figure 2 is the structural schematic diagram of the outer shell of the present utility model;

[0020] Figure 3 is the structural schematic diagram of the oil pipe of the present utility model;

[0021] Figure 4 is the structural schematic diagram of the sealing ring of the present utility model.

[0022] The reference numerals in the drawings are described as follows: 1. Outer shell; 2. Sealing ring; 3. Oil pipe;

[0023] 4. Through hole; 5. Filter paper; 6. Filter cartridge; 7. Filter hole; 8. Limit ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] It is easy to understand that according to the technical solution of the present utility model, without changing the substantial spirit of the present utility model, those of ordinary skill in the art can propose various structural forms and implementation methods that can be mutually replaced. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present utility model, and should not be regarded as all of the present utility model or as a limitation or restriction on the technical solution of the present utility model.

[0025] As Figure 1 shown, as a movable sealing ring oil filter of the present utility model, it includes a housing 1. As Figure 2 shown, through holes 4 are provided at both the top and bottom of the housing 1. A filter cartridge 6 is arranged at the inner bottom of the housing 1. The filter cartridge 6 communicates with the through hole 4 at the bottom of the housing 1, and the inner diameter of the open end of the filter cartridge 6 is larger than the diameter of the through hole 4, ensuring that there is a spacing between the inner diameter of the filter cartridge 6 and the through hole 4 to provide a force-bearing platform. A plurality of filter holes 7 are provided on the filter cartridge 6, and a filter paper 5 is arranged outside the filter cartridge 6. One through hole 4 serves as an inlet hole, and the oil enters the housing 1 and is filtered by the filtering assembly composed of the filter cartridge 6, the filter holes 7 and the filter paper 5. The filtered oil is discharged through the other through hole 4.

[0026] Sealing rings 2 are arranged in the through holes 4. As Figure 4 shown, the sealing ring 2 is arranged in a T-shaped structure. The outer diameter of the smaller diameter end of the sealing ring 2 is the same as the diameter of the through hole 4, and the larger diameter end of the sealing ring 2 is located outside the housing 1. The T-shaped sealing ring 2 ensures the stability of the position of the sealing ring 2 and will not move in the front, back, left or right directions. A tubing 3 is inserted into the sealing ring 2, and the tubing 3 is hermetically arranged with the sealing ring 2. As Figure 3 shown, the tubing 3 is arranged in a T-shaped structure, and the larger diameter end of the bottom tubing 3 is located inside the filter cartridge 6. A limiting ring 8 is threadedly arranged on the part of the tubing 3 outside the housing 1. The diameter of the limiting ring 8 is smaller than the diameter of the side of the sealing ring 2 outside the housing 1. By changing the position of the limiting ring 8 on the tubing 3 through the threaded connection between the limiting ring 8 and the tubing 3, on the one hand, by reducing the distance between the limiting ring 8 and the housing 1, the tubing 3 is fixed on the housing 1, thereby realizing the stable connection between the tubing 3 and the housing 1. On the other hand, by continuously approaching the housing 1 with the limiting ring 8, the sealing ring 2 is pressed and fixed, so that the sealing ring 2 plays a sealing role. At the same time, the structure is simple, the loading and unloading are convenient, and the practical value of the device is improved.

[0027] The bottom surface of the limiting ring 8 can be set to be flat, and the bottom surface of the limiting ring 8 can also be set to be arc-shaped. By using the limiting ring 8 with a flat bottom surface to circumferentially press and fix the sealing ring 2, the oil passing in and out through the through hole 4 will not leak. By using the limiting ring 8 with an arc-shaped bottom surface, the contact area between the limiting ring 8 and the sealing ring 2 is reduced, thereby increasing the pressure generated when the limiting ring 8 is pressed down, which is beneficial to the sealing ring 2 to play a good and stable sealing role. AsFigure 3 As shown, a stepped platform is provided on one side of the inner part of the limit ring 8 close to the outer shell 1, and the outer diameter of the limit ring 8 is always the same. The stepped platform on the side of the limit ring 8 close to the outer shell 1 makes a gap between the outer shell 1 and the threaded part on the oil pipe 3, avoiding the influence of the threaded part on the oil pipe 3 on the sealing, thereby ensuring the sealing effect.

[0028] The technical scope of the present utility model is not limited to the content described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present utility model, and these deformations and modifications should all fall within the protection scope of the present utility model.

Claims

1. An active sealing ring oil filter, characterized in that: It includes a housing (1). Through holes (4) are provided at both the top and the bottom of the housing (1), and a filtering assembly communicating with the through holes (4) is arranged at the inner bottom of the housing (1). Sealing rings (2) are arranged in the through holes (4). The sealing rings (2) are arranged in a T-shaped structure, and the end with a larger diameter of the sealing ring (2) is located outside the housing (1). An oil pipe (3) is hermetically inserted into the sealing ring (2). The oil pipe (3) is arranged in a T-shaped structure, and the end with a larger diameter of the oil pipe (3) is located inside the housing (1). A limit ring (8) is threadedly arranged on the part of the oil pipe (3) outside the housing (1), and the diameter of the limit ring (8) is smaller than the diameter of the sealing ring (2) on one side outside the housing (1).

2. The movable sealing ring oil filter according to claim 1, wherein: The bottom surface of the limit ring (8) is arranged in a planar shape.

3. The movable sealing ring oil filter according to claim 1, characterized in that: The bottom surface of the limit ring (8) is arranged in a curved surface shape.

4. An active seal ring oil filter according to any one of claims 1-3, characterized in that: A stepped platform is arranged on the side of the limit ring (8) close to the housing (1) inside, and the outer diameter of the limit ring (8) is always the same.

5. The movable sealing ring oil filter according to claim 4, characterized in that: The filtering assembly includes a filter cartridge (6) arranged at the inner bottom of the housing (1). A plurality of filter holes (7) are provided on the filter cartridge (6), and a filter paper (5) is arranged outside the filter cartridge (6).

6. The movable sealing ring oil filter according to claim 5, characterized in that: The inner diameter of the open end of the filter cartridge (6) is larger than the diameter of the through hole (4), and the end with a larger diameter of the bottom oil pipe (3) is located inside the filter cartridge (6).

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