Automobile oil filter structure

Abstract

The utility model belongs to the technical field of oil filters, and discloses an automobile oil filter structure. Comprising a bucket-shaped shell with an opening in one end, a base plate arranged at the opening end of the shell, a center pipe arranged in the shell and coaxial with the shell, a filter paper layer mechanism arranged outside the center pipe in a sleeving mode and used for filtering engine oil and an overflow valve arranged at the end, away from the opening end of the shell, in the center pipe, and a plurality of oil inlet holes are formed in the base plate in an annular array mode. A check valve is arranged at the bottom of the base plate and right opposite to the oil inlet hole, a plurality of oil through holes are formed in the center pipe, a sealing ring used for installing a filter in a sealing mode is further arranged on the outer side of the base plate, and a second-order filtering assembly used for filtering engine oil passing through the overflow valve is further arranged at the oil outlet end of the center pipe. According to the engine oil filtering device, engine oil impurities can be filtered in a distributed mode, the filtering effect is improved, engine oil passing through the overflow valve is filtered, and irreversible damage to an engine caused by the fact that unfiltered engine oil enters an engine oil way is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of labeling machines, and particularly relates to an automobile oil filter structure. Background Art

[0002] The main function of the oil filter is to remove impurities such as dust, metal particles, carbon deposits and soot particles from the oil to protect the engine. By filtering the oil, it maintains the cleanliness of the oil and prevents wear of engine parts, thereby extending the service life of the engine.

[0003] First, when conventional oil filters currently on the market are working, when there are too many impurities attached to the outside of the filter paper, the resistance of the oil passing through the filter paper will increase. At this time, in order to protect the normal operation of the engine, under the action of liquid pressure, the oil that has not been fully filtered will continue to enter the oil circuit through the overflow valve;

[0004] Although the normal operation of the oil circuit is guaranteed, this part of the oil enters the oil circuit directly without being fully filtered, which will cause a large amount of impurities in the oil circuit, easily aggravating the mechanical wear inside the engine, causing irreversible damage, affecting the stability of the engine operation, and reducing its service life. Utility Model Content

[0005] The utility model provides an automobile oil filter structure, which can distribute and filter oil impurities and arrange two filtering paths to improve the filtering effect. At the same time, it filters the oil passing through the overflow valve to prevent unfiltered oil from entering the engine oil circuit and causing irreversible damage to the engine.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: an automobile oil filter structure, comprising:

[0007] The shell is a bucket-shaped structure with one end open;

[0008] a chassis, arranged at the open end of the shell;

[0009] a central tube, arranged in the shell and coaxially arranged with the shell;

[0010] The filter paper layer mechanism is sleeved on the outside of the central tube and is used to filter the engine oil;

[0011] A relief valve is arranged at an end of the central tube away from the shell opening;

[0012] The second-stage filter assembly is arranged at the oil outlet end of the central tube;

[0013] Among them, a sensing device for detecting the opening of the overflow valve is arranged on the shell at the installation position of the overflow valve, and the second-stage filter component.

[0014] Preferably, the filter paper layer mechanism comprises:

[0015] A filter paper layer assembly arranged in a ring shape;

[0016] A support frame, used to fix the filter paper layer assembly;

[0017] Wherein, the support frame is a mesh support mechanism.

[0018] Preferably, the filter paper layer assembly comprises:

[0019] Filter cotton layer 1, attached to the support frame;

[0020] The active filter layer 1 is arranged outside the filter cotton layer 1;

[0021] Filter paper 1, arranged on the outer side of active filter layer 1;

[0022] Wherein, the filter paper has a built-in skeleton for reinforcement.

[0023] Preferably, a plurality of oil holes are arranged on the central tube.

[0024] Preferably, the second-stage filter assembly comprises:

[0025] Base, used to seal the oil outlet of the center tube;

[0026] The second frame is covered on the upper end of the base, and the second frame is a conical structure;

[0027] The base is annular, the second skeleton is a double-layer structure, and a second-order filter paper layer assembly for filtering engine oil is arranged on the second skeleton.

[0028] Preferably, the second-stage filter paper layer assembly comprises:

[0029] The second filter cotton layer is arranged in the double-layer interlayer of the second frame;

[0030] The second active filter layer is arranged on the outside of the second filter cotton layer;

[0031] The second filter paper is arranged on the outer side of the second active filter layer.

[0032] Preferably, the base is filled with a layer of fine-porous sponge.

[0033] Preferably, a sealing ring for sealing the filter is also arranged on the outer side of the chassis.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] (1) By arranging the filter paper layer structure into three layers of filtration, the outermost layer of filter paper is first screened, then the impurities are adsorbed by the active filter layer 1, and finally the oil is filtered carefully by the filter cotton layer 1. The three-layer filtration is used to filter the oil in steps, thereby improving the filtering effect of the oil.

[0036] (2) By arranging a second-stage filter assembly at the oil outlet end of the central tube, the oil passing through the overflow valve is initially filtered, and the oil passing through the filter layer mechanism is subjected to a second-stage filtration, thereby solving the problem that the existing filter does not filter the oil passing through the overflow valve, and improving the filtering effect of the oil filter.

[0037] (3) By filling the base with a layer of fine-porous sponge, the fine-porous sponge layer performs a third filtration on the normally filtered engine oil and a second filtration on the engine oil flowing in through the overflow valve, thereby further improving the filtering effect of the engine oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural diagram of the utility model;

[0039] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure;

[0040] Figure 3 for Figure 2 Schematic diagram of the structure at A in FIG;

[0041] Figure 4 It is an exploded view of the utility model;

[0042] Figure 5 This is a schematic structural diagram of the second-stage filter assembly of the utility model;

[0043] Figure 6 It is a cross-sectional view of the second-stage filter assembly of the utility model;

[0044] Figure 7 for Figure 6 Schematic diagram of the structure at point B in .

[0045] Description of reference numerals:

[0046] 1-shell, 2-chassis, 201-oil inlet, 202-check valve, 3-center tube, 301-oil hole, 4-overflow valve, 5-support frame, 6-filter cotton layer one, 7-active filter layer one, 8-filter paper one, 9-skeleton one, 901-skeleton two, 10-base, 11-filter cotton layer two, 12-filter paper two, 13-active filter layer two, 14-fine-pore sponge, 15-sealing ring. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0048] Example 1:

[0049] like Figures 1 to 7 As shown, this embodiment provides an automobile oil filter structure, including a bucket-shaped shell 1 with an open end, a chassis 2 arranged at the open end of the shell 1, a center tube 3 arranged in the shell 1 and coaxially arranged with the shell 1, a filter paper layer mechanism sleeved on the outside of the center tube 3 for filtering the oil, and a relief valve 4 arranged in the center tube 3 away from the open end of the shell 1. A plurality of oil inlet holes 201 are arranged in an annular array on the chassis 2, a check valve 202 is arranged at the bottom of the chassis 2 facing the oil inlet holes 201, a plurality of oil holes 301 are arranged on the center tube 3, and a sealing ring 15 for sealing the filter is also arranged on the outside of the chassis 2. The arrangement of the sealing ring 15 can prevent the oil from leaking out when the filter is installed.

[0050] The filter paper layer mechanism includes a ring-shaped filter paper layer assembly and a support frame 5 for fixing the filter paper layer assembly. The support frame 5 is a mesh support mechanism for fixing the filter paper layer assembly.

[0051] Specifically, the filter paper layer assembly includes a filter cotton layer 6 attached to the support frame 5, an active filter layer 7 arranged outside the filter cotton layer 6, and a filter paper 8 arranged outside the active filter layer 7. The engine oil first passes through the filter paper 8 to filter out large particles of iron filings, then passes through the active filter layer 7 to absorb impurities, and finally passes through the filter cotton layer 6 for fine filtration, completing the complete filtration and entering the central tube 3.

[0052] The filter paper 8 has a built-in reinforcement frame 9, which can prevent the shape of the filter paper 8 from being deformed by changes in oil pressure.

[0053] Example 2:

[0054] On the basis of Example 1, in order to solve the problem that the oil flowing into the engine through the overflow valve 4 is not filtered, a second-stage filter component for filtering the oil passing through the overflow valve 4 is further arranged at the oil outlet end of the central pipe 3.

[0055] Specifically, the second-stage filter assembly includes a base 10 for sealing the oil outlet of the central tube 3 and a second frame 901 covering the upper end of the base 10. The second frame 901 has a conical structure, and the base 10 has a circular ring structure. The conical structure can disperse the uneven pressure caused by the oil entering, thereby preventing damage to the filter mechanism.

[0056] The second skeleton 901 is a double-layer structure, and a second-order filter paper layer assembly for filtering engine oil is arranged on the second skeleton 901.

[0057] Specifically, the second-order filter paper layer assembly includes a second filter cotton layer 11 arranged in the double-layer sandwich of the second skeleton 901, a second active filter layer 13 arranged outside the second filter cotton layer 11, and a second filter paper 12 arranged outside the second active filter layer 13.

[0058] Example 3:

[0059] On the basis of Example 2, in order to further improve the filtering effect of the engine oil, a layer of fine-porous sponge layer 14 is filled on the base 10. The fine-porous sponge layer 14 filters the normally filtered engine oil for a third time and filters the engine oil flowing in through the overflow valve 4 for a second time.

[0060] Working principle: During installation, align the chassis 2 with the installation position, place the sealing ring 15 on the chassis 2 and install the filter as a whole;

[0061] During operation, the oil enters the filter from the oil inlet 201. The check valve 202 prevents oil backflow when the engine is stopped. The oil entering the housing 1 first passes through the filter paper 18 to remove large iron particles, then passes through the active filter layer 17 to absorb impurities, and finally passes through the filter cotton layer 16 for fine filtration, and enters the central tube 3 through the oil hole 301. When passing through the oil outlet, it undergoes a second filtration by the filter paper 2 12, the active filter layer 2 13, and the filter cotton layer 2 11, and finally passes through the fine-porous sponge layer 14 to enter the engine's oil pipeline.

[0062] When the overflow valve 4 is opened, the engine oil will enter the central tube 3 from between the overflow valves 4. The engine oil entering the central tube 3 will be filtered by the filter paper 2 12, the active filter layer 2 13 and the filter cotton layer 2 11, and finally filtered by the fine-porous sponge layer 14 and enter the engine oil circuit.

[0063] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. An automobile oil filter structure, characterized in that: include: The housing (1) is a bucket-shaped structure with one end open; a chassis (2) arranged at the open end of the housing (1); A central tube (3) is arranged in the housing (1) and coaxially with the housing (1); A filter paper layer mechanism is sleeved on the outside of the central tube (3) and is used to filter the engine oil; A relief valve (4) is arranged at an end of the central tube (3) away from the opening of the housing (1); A second-stage filter assembly is also arranged at the oil outlet end of the central tube (3) for filtering the oil passing through the overflow valve (4); The second-stage filter assembly includes: A base (10) for sealing the oil outlet of the central tube (3); The second frame (901) is covered on the upper end of the base (10), and the second frame (901) is a conical structure; The base (10) is annular, the second frame (901) is a double-layer structure, and a second-order filter paper layer assembly for filtering engine oil is arranged on the second frame (901); The second-stage filter paper layer assembly comprises: The second filter cotton layer (11) is arranged in the double-layer sandwich of the second frame (901); The second active filter layer (13) is arranged outside the second filter cotton layer (11); The second filter paper (12) is arranged on the outside of the second active filter layer (13).

2. The automobile oil filter structure according to claim 1, characterized in that: The filter paper layer mechanism comprises: A filter paper layer assembly arranged in a ring shape; A support frame (5) for fixing the filter paper layer assembly; Wherein, the support frame (5) is a mesh support mechanism.

3. The automobile oil filter structure according to claim 2, characterized in that: The filter paper layer assembly comprises: A filter cotton layer (6) is attached to the support frame (5); An active filter layer (7) is arranged outside the filter cotton layer (6); Filter paper one (8), arranged on the outside of active filter layer one (7); Wherein, the filter paper (8) has a built-in frame (9) for reinforcement.

4. The automobile oil filter structure according to claim 1, characterized in that: A plurality of oil holes (301) are arranged on the central tube (3).

5. The automobile oil filter structure according to claim 1, characterized in that: The base (10) is filled with a layer of fine-porous sponge (14).

6. The automobile oil filter structure according to claim 5, characterized in that: A sealing ring (15) for sealing and installing a filter is also arranged on the outer side of the chassis (2).

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