Rotary automobile filter

Abstract

The utility model relates to the technical field of filter devices, and discloses a spin-on type automobile filter which comprises an outer shell, a spin-on type cover plate is fixedly connected to the left side of the outer shell, a filter part is arranged in the outer shell, a check valve is installed in a crack between the filter part and the spin-on type cover plate, and the filter part is connected with the spin-on type cover plate. And a pressure release valve is arranged in the filtering piece, and a magnetic attraction assembly is arranged on the outer side of the filtering piece. According to the utility model, through the cooperation of the magnetic suction assembly, the annular push plate and the reset assembly, metal impurities in impurities filtered out from the outer side of the filter element can be subjected to magnetic suction and impurity removal, so that the surface load of the paper-folded filter element on the outer side of the filter element is reduced, and the service life of the filter element is prolonged; and the magnetic attraction assembly can be automatically driven by oil pressure to move rightwards and reset, so that the magnetic attraction assembly can pass through the whole outer side of the filtering piece, the adsorption effect on metal impurities is improved, and the influence on the speed of engine oil passing through the filtering piece is reduced.

Description

Technical Field

[0001] This utility model relates to the field of filter device technology, and in particular to a spin-on automotive filter. Background Technology

[0002] A filter is a device or assembly that separates impurities from a fluid by passing it through a porous material. It is commonly used in the automotive industry as an engine component. Before entering the engine, engine oil needs to pass through a filtration system to remove contaminants. The main component of the filtration system is the filter, the most typical and widely used of which is the spin-on type.

[0003] A search revealed Chinese Patent Publication No. CN217652801U, which discloses a spin-on filter. This filter includes a sealing ring seat welded to the upper end cover of the filter element to support the filter element assembly. This eliminates the need for a spring between the outer shell and the lower end cover of the filter element, reducing the number of parts and decreasing the distance between them. Furthermore, an external thread is provided on the filter shell to form a threaded wall, allowing the filter to be installed in the engine compartment of an automobile or on a mounting base on the vehicle chassis via the threaded wall, eliminating the need for the threaded flange of the threaded cover plate in the prior art.

[0004] After prolonged use, metal impurities generated by engine wear during operation will also enter the filter along with the circulating oil. They will eventually be filtered out by the filter element and remain on the outside of the filter element. These increasing metal impurities will increase the surface load of the filter element, which will affect the service life of the filter element and lead to frequent filter element replacement. The static magnets placed inside the housing can only attract and settle impurities, but cannot deal with the adhering substances on the surface of the filter element. Therefore, a spin-on automotive filter is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a spin-on automotive filter, which aims to improve the problem in the prior art where the metal impurities carried by the engine oil increase continuously as the oil is continuously circulated, leading to a continuous increase in the surface load of the filter element and a great impact on the service life of the filter element.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a spin-on automotive filter, comprising a housing, a spin-on cover plate fixedly connected to the left side of the housing, a filter element disposed inside the housing, a check valve installed in the gap between the filter element and the spin-on cover plate, a pressure relief valve disposed inside the filter element, a magnetic suction assembly disposed on the outside of the filter element, and an elastic reset assembly disposed on the right side of the magnetic suction assembly;

[0007] The magnetic suction assembly includes a magnetic ring and a triangular magnetic block. The magnetic ring is sleeved on the outside of the filter element, and the triangular magnetic block is fixedly connected to the inner wall surface of the magnetic ring. There are several magnetic rings, which are arranged in a left-right array on the outside of the filter element. Adjacent magnetic rings are fixedly connected to each other by connecting rods. An annular push plate is fixedly connected to the outside of the leftmost magnetic ring.

[0008] As a further description of the above technical solution:

[0009] The number of triangular magnetic blocks is several, and the several triangular magnetic blocks are fixedly connected to the inner wall surface of the magnetic ring in a ring array.

[0010] As a further description of the above technical solution:

[0011] The triangular magnetic block has chamfered edges at its corners.

[0012] As a further description of the above technical solution:

[0013] The elastic reset assembly includes a side plate, a telescopic rod, and a reset spring. The side plate is fixedly connected to the outside of the rightmost magnetic ring, the telescopic rod is fixedly connected to the right side surface of the side plate, and the reset spring is sleeved on the outside of the telescopic rod.

[0014] As a further description of the above technical solution:

[0015] The right ends of the telescopic rod and the return spring are fixedly connected to the inner right wall surface of the outer casing, and the left end of the return spring is fixedly connected to the left side surface of the side plate.

[0016] As a further description of the above technical solution:

[0017] A gap is left between the outer wall of the annular pusher plate and the inner wall of the outer casing.

[0018] As a further description of the above technical solution:

[0019] An annular groove is provided on the right side surface of the outer casing. An annular collecting plate is fixedly connected inside the annular groove, and an annular magnetic plate is fixedly connected to the right side surface of the annular collecting plate.

[0020] As a further description of the above technical solution:

[0021] The annular collecting plate has a recessed center on its left side surface that extends to the right.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by combining the magnetic suction component, the annular push plate, and the reset component, the metal impurities filtered from the outside of the filter element can be magnetically removed, reducing the surface load on the paper-like filter element on the outside of the filter element, extending the service life of the filter element, and the magnetic suction component can be automatically moved to the right and reset by the oil pressure, so that the magnetic suction component can pass through the entire outside of the filter element, improving the adsorption effect on metal impurities and reducing the impact on the rate at which the oil passes through the filter element.

[0024] 2. In this utility model, the combination of the annular through groove, the annular collection plate and the annular magnetic plate can adsorb and limit the metal impurities in the impurities that fall to the bottom of the outer shell under the action of gravity, so as to prevent these metal impurities from returning to the liquid circulation system. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a spin-on automotive filter proposed in this utility model;

[0026] Figure 2 This is an exploded view of the internal parts of the housing of a spin-on automotive filter proposed in this utility model.

[0027] Figure 3 This is a schematic cross-sectional view of the front part of the filter element of a spin-on automotive filter according to the present invention.

[0028] Figure 4 This is a schematic diagram of the magnetic suction assembly of a spin-on automotive filter proposed in this utility model;

[0029] Figure 5 This utility model proposes a spin-on automotive filter. Figure 4 A partial diagram of point A;

[0030] Figure 6 This is a schematic diagram showing a cross-sectional view of the front part of the housing of a spin-on automotive filter according to the present invention.

[0031] Figure 7 This utility model proposes a spin-on automotive filter. Figure 6 A schematic diagram of part B.

[0032] Legend:

[0033] 1. Outer shell; 2. Screw-on cover; 3. Filter element; 4. Check valve; 5. Pressure relief valve; 6. Magnetic suction assembly; 61. Magnetic ring; 62. Triangular magnetic block; 63. Connecting rod; 7. Annular push plate; 8. Elastic reset assembly; 81. Side plate; 82. Telescopic rod; 83. Reset spring; 9. Chamfer; 10. Annular through groove; 11. Annular collection plate; 12. Annular magnetic plate. Detailed Implementation

[0034] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figures 1-3 This utility model provides an embodiment of a spin-on automotive filter, comprising a housing 1, a spin-on cover 2 fixedly connected to the left side of the housing 1, a threaded mounting cylinder installed at the center of the spin-on cover 2, and an oil inlet hole on the left side surface, allowing dirty engine oil to enter the housing 1 for filtration. A filter element 3 is disposed inside the housing 1, comprising a central tube, a left end cap, a right end cap, and a folded paper-shaped filter element. The left and right end caps are respectively installed at the left and right ends of the folded paper-shaped filter element, while the central tube is inserted into the interior of the folded paper-shaped filter element. A limit spring is provided on the right side of the right end cap, allowing the central tube, left end cap, and right end cap to... The filter element 3 is tightly connected to the origami-shaped filter element. At the same time, filter holes are opened on the outside of the central tube, and the inside of the central tube is connected to the inside of the threaded mounting cylinder. The filter element 3 includes a check valve 4 installed in the gap between the filter element 3 and the screw-on cover plate 2. The check valve 4 can automatically close when the machine stops, blocking the oil inlet hole and keeping about 100-300ml of machine oil in the filter. The filter element 3 is equipped with a pressure relief valve 5. When the filter element 3 is blocked, the machine oil cannot enter the inside of the central tube through the origami-shaped filter element and the filter holes on the outside of the central tube. As the oil pressure inside the outer shell 1 continues to increase, the pressure relief valve 5 will open to avoid insufficient oil supply.

[0036] After the filter is installed by screwing on the threaded mounting sleeve on the screw-on cover plate 2, the dirty engine oil will flow into the outer casing 1 through the oil inlet hole and push open the check valve 4 to smoothly enter the outside of the filter element 3. At this time, the pressure relief valve 5 is closed. After being filtered by the paper-like filter element, the dirty engine oil will enter the central tube through the filter holes and finally return to the engine oil passage through the threaded mounting sleeve, forming a complete circuit.

[0037] Reference Figures 4-5A magnetic suction assembly 6 is provided on the outer side of the filter element 3. The magnetic suction assembly 6 includes a magnetic ring 61 and triangular magnetic blocks 62. The magnetic ring 61 is sleeved on the outer side of the filter element 3, and the triangular magnetic blocks 62 are fixedly connected to the inner wall surface of the magnetic ring 61. When the magnetic ring 61 moves, it can drive the triangular magnetic blocks 62 to move synchronously. There are several triangular magnetic blocks 62, which are fixedly connected to the inner wall surface of the magnetic ring 61 in a ring array. The size and number of triangular magnetic blocks 62 are related to the size of the folded recess on the outer side of the paper-like filter element. The size and quantity are well-matched. A gap is left between the outer wall of the triangular magnetic block 62 and the outer wall of the origami-shaped filter element, preventing direct contact and avoiding wear on the origami-shaped filter element during movement, thus extending its service life. Chamfers 9 are provided at the corners of the triangular magnetic block 62, creating a pointed structure on the side of the triangular magnetic block 62 that is close to the origami-shaped filter element. When the triangular magnetic block 62 adsorbs metal impurities filtered from the outside of the origami-shaped filter element, these impurities are adsorbed on the inclined surface of the chamfer 9. This reduces the amount of metal impurities on the side of the triangular magnetic block 62 that faces the outer wall of the origami-shaped filter element, preventing excessive accumulation of metal impurities that could contact the origami-shaped filter element and affect its filtration. Simultaneously, the chamfer 9 reduces oil flow resistance and prevents turbulence from interfering with filtration. Several magnetic rings 61 are arranged in a left-right array and nested on the outside of the filter element 3. Adjacent magnetic rings 61 are fixedly connected by connecting rods 63, which allow all magnetic rings 61 to move synchronously. The magnetic ring 61 located on the far left is fixedly connected to an annular push plate 7. A gap is left between the outer wall of the annular push plate 7 and the inner wall of the outer shell 1 to avoid the annular push plate 7 affecting the speed at which the oil reaches the outside of the filter element 3 too much. When the oil enters the interior of the outer shell 1 through the check valve 4, the oil pressure generated will push the annular push plate 7 to the right from the left surface of the annular push plate 7, which will drive the magnetic suction assembly 6 to move to the right as a whole, so that the magnetic suction assembly 6 can magnetically remove impurities from the entire surface of the outer side of the folded paper filter element.

[0038] A spring-loaded reset assembly 8 is provided on the right side of the magnetic attraction assembly 6. The spring-loaded reset assembly 8 includes a side plate 81, a telescopic rod 82, and a reset spring 83. The side plate 81 is fixedly connected to the outside of the rightmost magnetic ring 61. The telescopic rod 82 is fixedly connected to the right side surface of the side plate 81. The reset spring 83 is sleeved on the outside of the telescopic rod 82. The right ends of both the telescopic rod 82 and the reset spring 83 are fixedly connected to the right inner wall surface of the outer casing 1. The left end of the reset spring 83 is fixedly connected to the left side surface of the side plate 81. The telescopic rod 82 can guide and limit the movement of the magnetic attraction assembly 6, ensuring that the magnetic attraction assembly 6 can only perform linear movement in the left and right directions, thus preventing... The misalignment causes direct contact with the origami-shaped filter element, resulting in wear. At the same time, when the magnetic suction assembly 6 moves to the right, it compresses the telescopic rod 82 and the return spring 83, causing the return spring 83 to generate elastic potential energy. After the machine stops, the oil no longer enters the housing 1. At this time, the annular push plate 7 is no longer affected by oil pressure, and the pushing force on the magnetic suction assembly 6 to the right disappears. The magnetic suction assembly 6 will automatically reset under the action of the elastic potential energy of the return spring 83, and pass through the entire outer side of the origami-shaped filter element again to magnetically remove impurities from the entire origami-shaped filter element, improving the impurity removal efficiency and reducing the impact on the efficiency of the oil passing through the filter element 3.

[0039] Reference Figures 6-7 An annular groove 10 is provided on the right side surface of the outer casing 1. An annular collecting plate 11 is fixedly connected inside the annular groove 10. The center of the annular groove on the left side surface of the annular collecting plate 11 is recessed to the right. An annular magnetic plate 12 is fixedly connected to the right side surface of the annular collecting plate 11. When the filter is installed vertically, impurities will fall downwards. Under the magnetic attraction of the annular magnetic plate 12, the metal impurities will concentrate and enter the recess of the annular collecting plate 11 for storage and containment, preventing them from flowing back to the outside of the filter element 3 with the flow of oil, thus affecting its filtration effect.

[0040] Working principle: After the filter is installed vertically, when dirty engine oil enters the housing 1 through the oil inlet, it pushes the annular pusher 7 from the left to the right, thereby causing the magnetic suction assembly 6 to move to the right. This allows the magnetic suction assembly 6 to move across the entire outer side of the filter element 3. During this movement, the magnetic ring 61 and the triangular magnetic block 62 magnetically attract and adsorb the metal impurities filtered from the outside of the folded paper-shaped filter element, reducing the residue of metal impurities on the outside of the folded paper-shaped filter element. This reduces the surface load on the folded paper-shaped filter element and extends its service life. When the magnetic suction component 6 moves to the right, it will squeeze the return spring 83, causing the return spring 83 to compress and generate elastic potential energy. After the machine stops, the oil pressure inside the outer shell 1 weakens until it disappears. The magnetic suction component 6 and the annular push plate 7 will be reset under the action of the elastic potential energy of the return spring 83, and pass through the outside of the filter element 3 again to further adsorb the filtered impurities. When the next oil is fed, it can move to the right again under the action of oil pressure. The magnetic suction component 6 leaves a distance from the outside of the filter element 3 to avoid wear on the folded paper filter element and ensure the effect of magnetic impurity removal.

[0041] Metal impurities that fall to the bottom of the outer shell 1 under the action of gravity will be concentrated in the recess of the annular collection plate 11 under the action of the annular magnetic plate 12, thus preventing these metal impurities from re-entering the liquid circulation system.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spin-on automotive filter, comprising a housing (1), characterized in that: A screw-on cover plate (2) is fixedly connected to the left side of the outer shell (1). A filter element (3) is provided inside the outer shell (1). A check valve (4) is installed in the gap between the filter element (3) and the screw-on cover plate (2). A pressure relief valve (5) is provided inside the filter element (3). A magnetic suction assembly (6) is provided on the outside of the filter element (3). An elastic reset assembly (8) is provided on the right side of the magnetic suction assembly (6). The magnetic suction assembly (6) includes a magnetic ring (61) and a triangular magnetic block (62). The magnetic ring (61) is sleeved on the outside of the filter element (3). The triangular magnetic block (62) is fixedly connected to the inner wall surface of the magnetic ring (61). There are several magnetic rings (61). Several magnetic rings (61) are arranged in a left-right array and sleeved on the outside of the filter element (3). Adjacent magnetic rings (61) are fixedly connected to each other by a connecting rod (63). The outer side of the leftmost magnetic ring (61) is fixedly connected to an annular push plate (7).

2. A spin-on automotive filter according to claim 1, characterized in that: The number of the triangular magnetic blocks (62) is several, and the several triangular magnetic blocks (62) are fixedly connected to the inner wall surface of the magnetic ring (61) in a ring array.

3. A spin-on automotive filter according to claim 1, characterized in that: The triangular magnetic block (62) has chamfers (9) at its corners.

4. A spin-on automotive filter according to claim 1, characterized in that: The elastic reset assembly (8) includes a side plate (81), a telescopic rod (82), and a reset spring (83). The side plate (81) is fixedly connected to the outside of the rightmost magnetic ring (61), the telescopic rod (82) is fixedly connected to the right side surface of the side plate (81), and the reset spring (83) is sleeved on the outside of the telescopic rod (82).

5. A spin-on automotive filter according to claim 4, characterized in that: The right ends of the telescopic rod (82) and the return spring (83) are fixedly connected to the inner right wall surface of the outer shell (1), and the left end of the return spring (83) is fixedly connected to the left side surface of the side plate (81).

6. A spin-on automotive filter according to claim 1, characterized in that: A gap is left between the outer wall of the annular push plate (7) and the inner wall of the outer shell (1).

7. A spin-on automotive filter according to claim 1, characterized in that: An annular groove (10) is provided on the right side surface of the outer shell (1), and an annular collecting plate (11) is fixedly connected inside the annular groove (10). An annular magnetic plate (12) is fixedly connected to the right side surface of the annular collecting plate (11).

8. A spin-on automotive filter according to claim 7, characterized in that: The annular collecting plate (11) is recessed to the right at the annular center on the left side surface.

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