Efficient engine oil filter

Abstract

The utility model relates to an efficient engine oil filter which comprises a shell, filter paper and a bypass valve, an upper clamping plate and a lower clamping plate are arranged in the shell, the filter paper is arranged between the upper clamping plate and the lower clamping plate, and the bypass valve comprises a valve seat fixedly connected to the upper clamping plate and a valve element arranged on the valve seat and matched with the upper clamping plate. A mounting seat is fixedly connected to the valve element, a plurality of L-shaped mounting rods are fixedly connected to the peripheral side face of the mounting seat, the transverse flat portions of the mounting rods are located above the upper clamping plate, and the vertical portions of the mounting rods are located on one side of the filter paper and fixedly connected with a plurality of scrapers located in wrinkles of the filter paper. According to the efficient oil filter, when the filter paper is blocked and moves, the mounting rod drives the scraper to scrape in the wrinkles of the filter paper so as to stir impurities accumulated in the filter paper, the passing ability of the filter paper is recovered, and therefore the service life of the oil filter is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of engine oil filters, in particular to a high-efficiency engine oil filter. Background Art

[0002] The oil filter is installed in the oil circuit of the engine to remove impurities such as dust, metal particles, carbon deposits and soot particles in the oil, maintain the cleanliness of the oil flowing through the engine, and thus protect the engine.

[0003] The main structure of the oil filter in the prior art includes a housing, a filter paper with a star-shaped cross-section arranged in the housing, and a bypass valve arranged in the housing at the end of the filter paper. After the oil entering the housing is filtered by the filter paper, impurities therein will accumulate at the folds of the filter paper, affecting the permeability of the filter paper and shortening the service life of the filter.

[0004] In view of the above problems, the present invention makes improvements. Utility Model Content

[0005] The utility model provides a high-efficiency oil filter, which solves the above-mentioned problems existing in the prior art during use.

[0006] The technical solution of the utility model is achieved in this way:

[0007] A high-efficiency oil filter comprises a shell, filter paper and a bypass valve, wherein an upper clamping plate and a lower clamping plate are arranged in the shell, the filter paper is arranged between the upper clamping plate and the lower clamping plate, the bypass valve comprises a valve seat fixedly connected to the upper clamping plate and a valve core arranged on the valve seat and matched with the upper clamping plate, a mounting seat is fixedly connected to the valve core, a plurality of L-shaped mounting rods are fixedly connected to the peripheral side of the mounting seat, the horizontal portion of the mounting rod is located above the upper clamping plate, the vertical portion of the mounting rod is located on one side of the filter paper and a plurality of scrapers located in the folds of the filter paper are fixedly connected to the vertical portion of the mounting rod.

[0008] Preferably, the valve core is provided with a guide rod which vertically passes through the valve seat downward.

[0009] Preferably, the mounting seat is placed on the upper surface of the valve core, the guide rod passes upward through the valve core and is screwed into the mounting seat, and a limiting ring is formed on the peripheral side of the guide rod, which is tightly against the lower surface of the valve core.

[0010] Preferably, a scraper strip made of a flexible material and in contact with the filter paper is fixedly connected to the side end of the scraper facing the filter paper.

[0011] Preferably, the side end of the scraper bar that contacts the filter paper is chamfered so that the scraper bar and the filter paper are in linear contact.

[0012] Preferably, the scraper is hollowed out in the middle to form a through hole.

[0013] Preferably, an adsorption groove is provided on the inner wall of the through hole, and a magnetic sheet is provided on the bottom of the adsorption groove.

[0014] Preferably, a plurality of guide blocks corresponding to a plurality of mounting rods are formed on the lower clamping plate, and the vertical portions of the mounting rods pass downward through the guide blocks.

[0015] In summary, the beneficial effect of the utility model is that when impurities accumulate in the folds of the filter paper, blocking the filter paper and reducing the permeability of the filter paper, the increased oil pressure in the housing will push the valve core to move downward and open the bypass valve, so that the oil in the gap between the housing and the filter paper flows into the inner network through the bypass valve and flows back to the engine. While the valve core moves downward, the valve core drives the scraper to move in the folds of the filter paper through the mounting rod, stirring the impurities accumulated in the folds of the filter paper, restoring the permeability of the filter paper, and allowing the filter paper to continue to filter the oil entering the housing, thereby extending the service life of the oil filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 2 The schematic diagram of the structure of the utility model after the shell is removed;

[0019] Figure 3 This is a schematic diagram of the structure of the connection between the mounting seat and the valve core in the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the scraper in the utility model;

[0021] Figure 5 This is an exploded schematic diagram of the scraper in the utility model;

[0022] Figure 6 It is a cross-sectional schematic diagram of the scraper in the utility model.

[0023] In the figure: 1. Shell; 2. Filter paper; 3. Bypass valve; 31. Valve seat; 32. Valve core; 33. Return spring; 4. Upper clamping plate; 5. Lower clamping plate; 51. Guide block; 6. Mounting seat; 7. Mounting rod; 8. Scraper; 81. Scraper strip; 82. Through hole; 83. Adsorption groove; 84. Magnetic sheet; 9. Guide rod; 91. Limiting ring; 10. Inner net. DETAILED DESCRIPTION

[0024] The following will be combined with the attached embodiment of the utility model Figure 1-6 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] As shown in the figure, a high-efficiency oil filter comprises a shell 1, an inner net 10, a filter paper 2 and a bypass valve 3, wherein an upper clamping plate 4 and a lower clamping plate 5 are arranged in the shell 1, the filter paper 2 is sleeved on the inner net 10 and arranged between the upper clamping plate 4 and the lower clamping plate 5, and the filter paper 2 is fixed by the upper clamping plate 4 and the lower clamping plate 5, the bypass valve 3 comprises a valve seat 31 fixedly connected to the upper clamping plate 4 and a valve core 32 arranged on the valve seat 31 and matched with the upper clamping plate 4, a return spring 33 is arranged between the valve seat 31 and the valve core 32, a mounting seat 6 is fixedly connected to the valve core 32, and a plurality of L-shaped mounting rods 7 are fixedly connected to the side surface of the mounting seat 6, the number of the mounting rods 7 is consistent with the number of folds of the filter paper 2, the horizontal portion of the mounting rod 7 is located above the upper clamping plate 4, the vertical portion of the mounting rod 7 is located on one side of the filter paper 2, and a plurality of scrapers 8 located in the folds of the filter paper 2 are fixedly connected to the vertical portion of the mounting rod 7.

[0026] Specifically, the valve core 32 is provided with a guide rod 9 which vertically passes through the valve seat 31 downwards.

[0027] Specifically, the mounting seat 6 is placed on the upper surface of the valve core 32, the guide rod 9 passes upward through the valve core 32 and is screwed into the mounting seat 6, and a limiting ring 91 is formed on the side surface of the guide rod 9, which is tightly against the lower surface of the valve core 32, thereby achieving a fixed connection between the mounting seat 6 and the valve core 32.

[0028] In the above embodiment, the engine oil flowing into the housing 1 first flows into the gap between the housing 1 and the filter paper 2. After being filtered by the filter paper 2, the engine oil flows back into the engine through the mesh of the inner net, thereby filtering out impurities in the engine through the action of the filter paper 2 to ensure the cleanliness of the engine oil flowing back into the engine. The filtered impurities will accumulate in the folds of the filter paper 2, blocking the filter paper 2 and reducing the permeability of the filter paper 2. At this time, the increased oil pressure in the housing 1 will push the valve core 32 to move downward and open the bypass valve 3, so that the engine oil in the gap between the housing 1 and the filter paper 2 flows into the inner net through the bypass valve 3 and flows back to the engine. While the valve core 32 moves downward, the valve core 32 drives the scraper 8 to move in the folds of the filter paper 2 through the mounting seat 6 and the mounting rod 7, stirring the impurities accumulated in the folds of the filter paper 2 The impurities in the wrinkles of the filter paper 2 are restored to the permeability of the filter paper 2, so that the filter paper 2 can continue to filter the oil entering the housing 1, thereby extending the service life of the oil filter, and the guide rod 9 slides on the valve seat 31 while the valve core 32 moves, providing a guide for the movement of the valve core 32 and ensuring the stability of the movement of the valve core 32, thus ensuring the stability of the valve core 32 when the valve core 32 drives the scraper 8 to move through the mounting seat 6 and the mounting rod 7, ensuring that the scraper 8 can move in the wrinkles of the filter paper 2 to stir the accumulated impurities, and the mounting seat 6 is fixedly mounted on the valve core 32 by the guide rod 9, and it is only necessary to open a through hole 82 on the existing valve core 32 for the guide rod 9 to pass through, thereby reducing the processing requirements for the existing structure, thereby reducing the production cost.

[0029] Preferably, the scraper 8 is fixedly connected to a scraper strip 81 made of a flexible material (the flexible material may be rubber, etc.) which contacts the filter paper 2 on the side end thereof facing the filter paper 2. When the scraper 8 is moved by the mounting rod 7, the scraper 8 drives the scraper strip 81 to scrape the surface of the folds of the filter paper 2 to scrape off the impurities adsorbed on the surface of the filter paper 2, so as to better restore the permeability of the filter paper 2 and extend the service life of the oil filter. The scraper strip 81 made of the flexible material has a certain deformation space when it contacts the filter paper 2 and is driven by the scraper 8 to scrape the filter paper 2, thereby reducing the resistance of the scraper strip 81 to scrape the filter paper 2, thereby ensuring that the scraper 8 can be driven by the mounting rod 7 to move smoothly.

[0030] Preferably, the side end of the scraper strip 81 that contacts the filter paper 2 is chamfered so that the scraper strip 81 and the filter paper 2 are in linear contact, that is, only the chamfered side end of the scraper strip 81 contacts the filter paper 2, thereby reducing the contact area between the scraper strip 81 and the filter paper 2, thereby reducing the obstruction of the scraper strip 81 on the filter paper 2, and will not affect the permeability of the filter paper 2 when the filter paper 2 works normally.

[0031] Preferably, the scraper 8 is hollowed out in the middle to form a through hole 82, and the through hole 82 reduces the resistance to the oil flowing between the housing 1 and the filter paper 2, thereby ensuring the fluidity of the oil.

[0032] Preferably, an adsorption groove 83 is provided on the inner wall of the through hole 82, and a magnetic sheet 84 is provided on the bottom of the adsorption groove 83. When the engine oil flows through the through hole 82, the metal impurities mixed in the engine oil will be attracted by the magnetic sheet 84 and enter the adsorption groove 83 and accumulate in the adsorption groove 83, thereby reducing the impurity content in the engine oil passing through the filter paper 2, thereby extending the service life of the filter paper 2, that is, extending the service life of the oil filter.

[0033] Preferably, a plurality of guide blocks 51 corresponding to a plurality of mounting rods 7 are formed on the lower clamping plate 5, and the vertical portion of the mounting rod 7 passes downward through the guide block 51. When the mounting rod 7 is moved by the valve core 32, its vertical portion slides in the guide block 51 and is guided, thereby ensuring the stability of the mounting rod 7 when moving, that is, ensuring the stability of the scraper 8 when moving in the folds of the filter paper 2.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency oil filter, comprising a housing (1), filter paper (2) and a bypass valve (3), wherein an upper clamping plate (4) and a lower clamping plate (5) are arranged in the housing (1), the filter paper (2) is arranged between the upper clamping plate (4) and the lower clamping plate (5), and the bypass valve (3) comprises a valve seat (31) fixedly connected to the upper clamping plate (4) and a valve core (32) arranged on the valve seat (31) and cooperating with the upper clamping plate (4), characterized in that: The valve core (32) is fixedly connected to a mounting seat (6), and a plurality of L-shaped mounting rods (7) are fixedly connected to the side surface of the mounting seat (6), the horizontal portion of the mounting rod (7) is located above the upper clamping plate (4), the vertical portion of the mounting rod (7) is located on one side of the filter paper (2), and a plurality of scrapers (8) located in the folds of the filter paper (2) are fixedly connected to the vertical portion of the mounting rod (7).

2. A high efficiency oil filter according to claim 1, characterized in that: The valve core (32) is provided with a guide rod (9) which vertically passes through the valve seat (31) downwards.

3. A high efficiency oil filter according to claim 2, characterized in that: The mounting seat (6) is placed on the upper surface of the valve core (32), the guide rod (9) passes through the valve core (32) upwards and is screwed into the mounting seat (6), and a limiting ring (91) is formed on the side surface of the guide rod (9) and is tightly pressed against the lower surface of the valve core (32).

4. A high-efficiency oil filter according to claim 1, characterized in that: A scraper strip (81) made of a flexible material and in contact with the filter paper (2) is fixedly connected to the side end of the scraper (8) facing the filter paper (2).

5. A high-efficiency oil filter according to claim 4, characterized in that: The side end of the scraper bar (81) that contacts the filter paper (2) is chamfered so that the scraper bar (81) and the filter paper (2) are in linear contact.

6. A high-efficiency oil filter according to claim 5, characterized in that: The scraper (8) has a hollowed-out middle portion to form a through hole (82).

7. A high-efficiency oil filter according to claim 6, characterized in that: An adsorption groove (83) is provided on the inner wall of the through hole (82), and a magnetic sheet (84) is provided on the bottom of the adsorption groove (83).

8. The high-efficiency oil filter according to claim 1, characterized in that: A plurality of guide blocks (51) corresponding one-to-one to a plurality of mounting rods (7) are formed on the lower clamping plate (5), and the vertical portions of the mounting rods (7) pass downward through the guide blocks (51).

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