Anti-blocking engine oil filter

Abstract

The utility model discloses an anti-blocking engine oil filter which comprises an outer shell, the top of the outer shell is detachably connected with a top cover through threads, the top cover is provided with a plurality of oil inlet pipes, the inner sides of the oil inlet pipes are provided with spiral flow guide channels, the middle position of the top cover is provided with an oil outlet, and the lower side of the top cover is fixedly provided with a connecting ring. The lower side of the connecting ring is connected with a multi-filtering mechanism, the multi-filtering mechanism comprises an inner filter element framework, a middle filter element framework, an outer filter element framework, an inner-layer filter element, a middle-layer filter element and an outer-layer filter element, the inner filter element framework, the middle filter element framework and the outer filter element framework are all fixed with the connecting ring, the inner-layer filter element is fixedly mounted on the outer side of the inner filter element framework, and the outer-layer filter element is fixedly mounted on the outer side of the middle-layer filter element framework. A middle-layer filter element is fixedly mounted on the outer side of the middle filter element framework, and an outer-layer filter element is fixedly mounted on the outer side of the outer filter element framework. According to the utility model, impurities directly accumulated on the filter elements are reduced through the centrifugal effect, and then the quantity of impurities on each layer of filter element is reduced through multi-layer filtration, so that the risk of overall blockage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of oil filter technology, and in particular to an anti-clogging oil filter. Background Technology

[0002] Oil filters are used to filter out impurities from engine oil. Existing oil filters pass all impurities through the filter element during use, significantly increasing the amount of impurities on the element. Furthermore, existing filter elements are single-layer designs, leading to a large accumulation of impurities and potential clogging. Therefore, there is an urgent need to develop an anti-clogging oil filter that first reduces the direct accumulation of impurities on the filter element through centrifugation, and then further reduces the amount of impurities on each layer through multi-layer filtration, thereby lowering the overall risk of clogging. This would overcome the shortcomings of current applications and meet current needs. Utility Model Content

[0003] The purpose of this invention is to provide an anti-clogging oil filter to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An anti-clogging oil filter includes a housing. A top cover is detachably connected to the top of the housing via threads. Multiple oil inlet pipes are provided on the top cover, and a spiral guide channel is provided on the inner side of each oil inlet pipe. An oil outlet is located in the middle of the top cover. A connecting ring is fixed to the lower side of the top cover, and a multi-layer filtration mechanism is connected to the lower side of the connecting ring. The multi-layer filtration mechanism includes: an inner filter element frame, a middle filter element frame, an outer filter element frame, an inner layer filter element, a middle layer filter element, and an outer layer filter element. The inner, middle, and outer filter element frames are all fixed to the connecting ring. An inner layer filter element is fixedly installed on the outer side of the inner filter element frame, a middle layer filter element is fixedly installed on the outer side of the middle filter element frame, and an outer layer filter element is fixedly installed on the outer side of the outer filter element frame. The outer layer filter element is made of glass fiber, the middle layer filter element is made of polypropylene non-woven fabric, and the inner layer filter element is made of nanofiber membrane. All three filter elements are folded.

[0006] Preferably, the inner bottom of the multi-filtration mechanism is fixed with a mounting ring, and a bypass mechanism is movably connected to the mounting ring.

[0007] Preferably, the bypass mechanism includes a stop block, a spring, and a transition block. The stop block is positioned above the mounting ring. The lower end of the spring is fixed to the stop block, and the upper end is fixed to the transition block. The transition block is fixed to the inner filter element frame.

[0008] Preferably, a sealing ring is fixed to the outer side of the outer shell, and the sealing ring is fitted to the top cover.

[0009] The beneficial effects of this utility model are as follows: When using this anti-clogging oil filter, the inlet and outlet are connected to the oil system via pipes. Oil enters through the inlet pipe and flows spirally through the spiral guide channel. Under oil pressure, the inlet check valve is forced open downwards, allowing the oil to enter the outer casing. Furthermore, the rotation of the oil generates centrifugal force, which causes impurities in the oil to be thrown onto the inner wall of the outer casing and then deposited at the bottom, reducing the direct accumulation of impurities on the multi-stage filtration mechanism. Then, the oil passes through the outer casing sequentially... The filter consists of a first-layer filter, a middle-layer filter, and an inner-layer filter. The outer filter intercepts larger particles such as metal shavings and grit, providing initial filtration and reducing the burden on subsequent filter layers. The middle filter removes smaller impurities such as dust and sludge produced by oil oxidation. Finally, the inner filter further enhances filtration precision, ensuring the filtered oil achieves extremely high cleanliness. The filtered oil is discharged from the outlet. This stratified filtration of impurities ensures filtration precision while reducing the amount of impurities accumulated on each layer, thus lowering the risk of clogging. In summary, this invention first reduces the direct accumulation of impurities on the filter element through centrifugation, and then reduces the amount of impurities on each filter layer through multi-layer filtration, thereby reducing the overall risk of clogging. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0011] Figure 2 This is an internal sectional view of the present invention.

[0012] Figure 3 This utility model Figure 2 A partial view at point A in the middle.

[0013] Figure 4 This utility model Figure 2 A partial view at point B in the middle.

[0014] Figure 5 This is a partial structural schematic diagram of the present invention.

[0015] Figure 6 This utility model Figure 5 Diagram showing the split state.

[0016] Legend:

[0017] 1. Outer shell; 2. Top cover; 201. Oil inlet pipe; 2011. Spiral guide channel; 202. Oil outlet; 3. Sealing ring; 4. Connecting ring; 5. Oil inlet check valve; 6. Multi-stage filtration mechanism; 601. Inner filter element frame; 602. Middle filter element frame; 603. Outer filter element frame; 604. Inner filter element; 605. Middle filter element; 606. Outer filter element; 7. Mounting ring; 8. Bypass mechanism; 801. Stop block; 802. Spring; 803. Adapter block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Specific implementation examples are given below.

[0020] See Figures 1-6In this embodiment of the present invention, an anti-clogging oil filter includes a housing 1. A top cover 2 is detachably connected to the top of the housing 1 via threads. A sealing ring 3 is fixed to the outer side of the housing 1, and the sealing ring 3 fits snugly against the top cover 2. The top cover 2 is provided with multiple oil inlet pipes 201. A spiral guide channel 2011 is provided on the inner side of each oil inlet pipe 201, allowing oil to flow spirally through the spiral guide channel 2011. A [missing information - likely a design feature] is located in the middle of the top cover 2. An oil outlet 202 is provided. A connecting ring 4 is fixed to the lower side of the top cover 2. An oil inlet check valve 5 (which can slide up and down) is slidably installed on the upper side of the connecting ring 4. A multi-stage filtration mechanism 6 is connected to the lower side of the connecting ring 4. The multi-stage filtration mechanism 6 includes: an inner filter element frame 601, a middle filter element frame 602, an outer filter element frame 603, an inner filter element 604, a middle filter element 605, and an outer filter element 606. All 603 are fixed to the connecting ring 4. The inner filter element 604 is fixedly installed on the outer side of the inner filter element frame 601, the middle filter element 605 is fixedly installed on the outer side of the middle filter element frame 602, and the outer filter element 606 is fixedly installed on the outer side of the outer filter element frame 603. The outer filter element 606 is made of glass fiber with a pore size of 50-80 micrometers. It is mainly used to intercept larger impurity particles, such as metal fragments and gravel, to play a preliminary filtration role and reduce the burden on subsequent filter layers. The middle filter element 605 is made of polypropylene non-woven fabric with a pore size of 10-30 micrometers. It can filter out smaller impurities, such as dust and colloids produced by oil oxidation. The inner filter element 604 is made of nanofiber membrane with a pore size of less than 5 micrometers to further improve the filtration accuracy and ensure that the filtered oil reaches a very high level of cleanliness. The inner filter element 604, middle filter element 605, and outer filter element 606 are all folded to increase their effective filtration area.

[0021] The bottom of the multi-filter mechanism 6 is fixed with a mounting ring 7. A bypass mechanism 8 is movably connected to the mounting ring 7. The bypass mechanism 8 includes a stop block 801, a spring 802, and a connecting block 803. The stop block 801 blocks the upper side of the mounting ring 7. The lower end of the spring 802 is fixed to the stop block 801, and the upper end is fixed to the connecting block 803. The connecting block 803 is fixed to the inner filter element frame 601. When the multi-filter mechanism 6 is severely blocked and the oil cannot pass through, the oil pressure inside the outer casing 1 increases. At this time, the oil overcomes the resistance of the spring 802 and pushes the stop block 801 upward, so that the oil can pass through the mounting ring 7 and be discharged directly from the oil outlet 202, ensuring normal supply to the mechanism when it is severely blocked.

[0022] Working principle: In use, this anti-clogging oil filter connects the inlet pipe 201 and outlet port 202 to the oil system via a pipeline. Oil enters through the inlet pipe 201 and flows spirally through the spiral guide channel 2011. Under oil pressure, the inlet check valve 5 is forced open, allowing the oil to enter the outer casing 1. Furthermore, the rotation of the oil generates centrifugal force, which throws impurities onto the inner wall of the outer casing 1 and deposits them at the bottom, reducing the direct accumulation of impurities on the multi-stage filtration mechanism 6. The oil then passes sequentially through the outer filter element 60. 6. The middle filter element 605, inner filter element 604, and outer filter element 606 are used to intercept larger impurity particles, such as metal shavings and gravel, playing a preliminary filtration role and reducing the burden on subsequent filter layers. The middle filter element 605 can filter out smaller impurities, such as dust and gum produced by oil oxidation. Finally, the inner filter element 604 further improves the filtration accuracy, ensuring that the filtered oil reaches an extremely high level of cleanliness. The filtered oil is discharged from the oil outlet 202. The stratified filtration of impurities not only ensures filtration accuracy but also reduces the amount of impurities accumulated on each layer, thereby reducing the risk of clogging.

[0023] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An anti-clogging oil filter, characterized in that, The system includes an outer casing (1), to which a top cover (2) is detachably connected by threads. The top cover (2) has multiple oil inlet pipes (201), and a spiral guide channel (2011) is provided on the inner side of each oil inlet pipe (201). An oil outlet (202) is located in the middle of the top cover (2). A connecting ring (4) is fixed to the lower side of the top cover (2), and a multi-stage filtration mechanism (6) is connected to the lower side of the connecting ring (4). The multi-stage filtration mechanism (6) includes: an inner filter element frame (601), a middle filter element frame (602), an outer filter element frame (603), an inner filter element (604), a middle filter element (605), and an outer filter element (606). The core frame (601), the middle filter frame (602), and the outer filter frame (603) are all fixed to the connecting ring (4). The inner filter frame (601) is fixedly installed with an inner filter element (604) on the outside. The middle filter frame (602) is fixedly installed with a middle filter element (605) on the outside. The outer filter frame (603) is fixedly installed with an outer filter element (606). The outer filter element (606) is made of glass fiber. The middle filter element (605) is made of polypropylene nonwoven fabric. The inner filter element (604) is made of nanofiber membrane. The inner filter element (604), the middle filter element (605), and the outer filter element (606) are all folded designs.

2. The anti-clogging oil filter according to claim 1, characterized in that, The inner bottom of the multi-filtration mechanism (6) is fixed with an installation ring (7), and a bypass mechanism (8) is movably connected to the installation ring (7).

3. The anti-clogging oil filter according to claim 2, characterized in that, The bypass mechanism (8) includes: a stop block (801), a spring (802) and a transition block (803). The stop block (801) is blocked on the upper side of the mounting ring (7). The lower end of the spring (802) is fixed to the stop block (801) and the upper end is fixed to the transition block (803). The transition block (803) is fixed to the inner filter element frame (601).

4. The anti-clogging oil filter according to claim 1, characterized in that, A sealing ring (3) is fixed to the outside of the outer shell (1), and the sealing ring (3) is in contact with the top cover (2).

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