Full-coverage sealed engine oil filter

Abstract

The utility model relates to the technical field of filters, in particular to a full-coverage sealing type oil filter which comprises a filter body and filter paper, the filter body is in threaded connection with a threaded sealing plate assembly, and a threaded plate and a sealing plate piece are connected through riveting of a rivet and a riveting hole. The dense plate piece and the screw plate are integrally in threaded connection with the filter body through the threaded connector, the second matching inclined face of the dense plate piece is completely attached to the first matching inclined face of the screw plate, the sealing performance is guaranteed, the screw plate and the dense plate piece of the screw dense plate assembly are completely attached through a full-covering type riveting structure, and therefore the sealing performance is good, and the service life of the filter is prolonged. The device can ensure that the leakage rate of the check valve reaches the standard, and solves the problems that the existing device adopts a plurality of uniformly distributed salient point structures, the phenomena of electric sparks, carbon deposition and non-uniform heating are easy to generate at nugget parts in a resistance spot welding process, so that a gap between a screw plate and a dense plate piece is large, and a screw dense plate assembly is not completely attached; and the leakage amount consistency of the check valve is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a fully covered sealed engine oil filter. Background Art

[0002] Oil filters are used to filter engine oil. Traditional oil filters mostly require the use of screw-type dense plates. The screw-type dense plate structure of traditional dense plate full-coverage oil spin-on filter products is mostly a resistance spot welding structure. Resistance spot welding process: multiple evenly distributed protrusions are stamped on the screw plate, and then the screw plate and the dense plate are welded into one by resistance spot welding.

[0003] Most existing filters are provided with multiple layers of filtration, wherein the first layer of filtration is mostly used to filter some metal particles and debris to prevent the metal particles from entering the precision parts in the engine with the flow of engine oil and causing wear.

[0004] However, during the implementation of the above technical solution, it was found that there were at least the following technical problems:

[0005] The resistance spot welding process using multiple evenly distributed convex point structures is prone to sparks, carbon deposits and uneven heating at the molten core, resulting in a large gap between the screw plate and the seal plate, causing incomplete fit of the screw and seal plate assembly, which can lead to poor consistency in the leakage of the check valve.

[0006] After the existing oil filter is used for a long time without being disassembled, the connection between the filter interface and the engine may cause the filter to stick to the engine due to reasons such as oil seal deterioration or rubber sealing gasket aging or high-temperature melting, making the filter difficult to disassemble. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a fully covered sealed oil filter to solve the technical problems that the existing device adopts a resistance spot welding process with multiple evenly distributed convex point structures, which easily generates electric sparks, carbon deposits and uneven heating at the molten core, resulting in a large gap between the screw plate and the seal plate, causing incomplete fit of the screw and seal plate assembly, and resulting in poor consistency in the leakage of the check valve.

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A fully covered sealed oil filter comprises a filter body, wherein filter paper is arranged inside the filter body, a screw seal plate assembly is threadedly connected to the bottom of the filter body, the screw seal plate assembly comprises a seal plate, a threaded joint, a rivet bolt and a screw plate, the threaded joint is fixedly connected to the top surface of the seal plate, the threaded joint is threadedly connected to the filter body, the screw plate is provided with eight riveting holes, and the screw plate is provided with a matching inclined surface 1; a matching inclined surface 2 is arranged on the top surface of the seal plate, eight rivet bolts are fixedly connected to the top surface of the seal plate, and the eight rivet bolts are respectively arranged on the matching inclined surface 2, and the top contact positions of the parts of the seal plate where the matching inclined surface 2 is arranged and the parts of the screw plate where the matching inclined surface 1 is arranged are both designed with arcs, and the angles are consistent.

[0010] Preferably: a holding plate is fixedly connected to the top of the filter body, eight holding grooves are provided on the surface of the holding plate, and a hexagonal steel block is fixedly connected to one end of the holding plate away from the filter body.

[0011] Preferably, the portion where the second inclined surface of the dense plate is arranged to match the portion where the first inclined surface of the screw plate is arranged to match the dense plate, and the dense plate is located below the screw plate.

[0012] Preferably, the holding groove is fixedly connected to the axis of the holding plate at one end away from the filter body.

[0013] Preferably, the surface of the gripping plate is polished into a rough shape by sandblasting.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The screw plate and the seal plate are connected by riveting through rivets and riveting holes. The seal plate and the screw plate are connected to the filter body through threaded joints. The matching bevel 2 of the seal plate and the matching bevel 1 of the screw plate are completely fitted to ensure sealing. Since the full-coverage riveting structure is adopted to make the screw plate and the seal plate of the screw seal plate assembly completely fit, the sealing performance is good, which can ensure that the leakage of the check valve meets the standard and increase the overall strength. It solves the technical problem that the existing device adopts a resistance spot welding process with multiple evenly distributed convex point structures, and the molten core is prone to sparks, carbon deposition and uneven heating, resulting in a large gap between the screw plate and the seal plate, resulting in incomplete fit of the screw seal plate assembly, and poor consistency of the leakage of the check valve.

[0016] Second, by providing a gripping plate and a gripping groove, the staff can use greater force when disassembling the entire device, and the surface of the gripping plate is set to be rough, which is convenient for the staff to exert force. When the entire device cannot be manually disassembled using the gripping plate, a wrench can be used in conjunction with a hexagonal steel block to provide greater torque to separate the entire device from the engine, making the present application easy to disassemble and solving the problem that the existing oil filter is difficult to disassemble after long-term use.

[0017] 3. The static pressure performance of the screw-tight plate assembly with a full-coverage riveted structure is significantly improved compared to the traditional resistance spot welding structure screw-tight plate, and the transformation from the resistance spot welding structure to the mechanical riveted structure, the improvement of the process will also have the advantage of saving energy costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0019] Figure 1 It is a side view of the structure of the device as a whole and the screw plate assembly of the utility model in a separated state;

[0020] Figure 2 This is a top view of the screw-sealed plate assembly of the utility model;

[0021] Figure 3 This is a structural diagram of the screw-sealed plate assembly in a separated state of the utility model;

[0022] Figure 4 This is a half-section side view of the screw plate of the utility model;

[0023] Figure 5 It is a bottom view of the structure of the device as a whole and the screw-sealed plate assembly of the utility model in a separated state.

[0024] Legend: 1. Filter body; 2. Screw plate assembly; 3. Sealed plate; 4. Threaded joint; 5. Rivet bolt; 6. Screw plate; 7. Riveted hole; 8. Matching slope one; 9. Matching slope two; 101. Holding plate; 102. Hexagonal steel block; 103. Filter paper; 104. Holding groove. DETAILED DESCRIPTION

[0025] The embodiment of the present application provides a fully covered sealed oil filter, which effectively solves the problem that the existing device uses a resistance spot welding process with multiple evenly distributed convex point structures, which is prone to sparks, carbon deposits and uneven heating at the molten core, resulting in a large gap between the screw plate and the seal plate, causing incomplete fit of the screw and seal plate assembly, and causing poor consistency in the leakage of the check valve.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that the existing device uses a plurality of uniformly distributed convex point structure resistance spot welding process, which is easy to generate electric sparks, carbon deposition and uneven heating at the molten core, resulting in a large gap between the screw plate and the dense plate, resulting in incomplete fitting of the screw and dense plate assembly, and causing poor consistency of the leakage of the check valve. The overall idea is as follows:

[0027] In view of the problems existing in the prior art, the utility model provides a fully covered sealed oil filter, comprising a filter body 1, wherein a filter paper 103 (for a multi-stage filtering method) is arranged inside the filter body 1, a screw seal plate assembly 2 is threadedly connected to the bottom of the filter body 1, the screw seal plate assembly 2 comprises a seal plate 3, a threaded joint 4, a rivet bolt 5 and a screw plate 6, the rivet bolt 5 is hollow and used for oil circulation, the threaded joint 4 is fixedly connected to the top surface of the seal plate 3, the threaded joint 4 is threadedly connected to the filter body 1, the screw plate 6 is provided with eight riveting holes 7, and the screw plate 6 is provided with a matching inclined surface 1 8; the top surface of the seal plate 3 is provided with a matching inclined surface 2 9, eight rivet bolts 5 are fixedly connected to the top surface of the seal plate 3, and the eight rivet bolts 5 are respectively placed on the matching inclined surface 2 9, and the top contact positions of the portion where the seal plate 3 is provided with the matching inclined surface 2 9 and the portion where the screw plate 6 is provided with the matching inclined surface 1 8 are both designed with arcs, and the angles are consistent. A check valve may also be provided between the filter paper 103 and the screw plate 6 of the screw-sealed plate assembly 2 .

[0028] A holding plate 101 is fixedly connected to the top of the filter body 1 , and eight holding grooves 104 are provided on the surface of the holding plate 101 . A hexagonal steel block 102 is fixedly connected to one end of the holding plate 101 away from the filter body 1 .

[0029] The portion of the sealing plate 3 where the matching inclined surface 2 9 is arranged fits with the portion of the screw plate 6 where the matching inclined surface 1 8 is arranged, and the sealing plate 3 is located below the screw plate 6 .

[0030] The holding groove 104 is fixedly connected to the axis of the holding plate 101 at one end away from the filter body 1 .

[0031] The surface of the gripping plate 101 is polished into a rough shape by sandblasting.

[0032] The screw plate 6 is connected to the sealing plate 3 by riveting bolts 5 and riveting holes 7. The sealing plate 3 and the screw plate 6 are threadedly connected to the filter body 1 as a whole through the threaded joint 4. The matching bevel 2 9 of the sealing plate 3 and the matching bevel 1 8 of the screw plate 6 are completely fitted to ensure the sealing performance. Since the full-coverage riveting structure is adopted to make the screw plate 6 and the sealing plate 3 of the screw sealing plate assembly 2 completely fit, the sealing performance is good, which can ensure that the leakage of the check valve meets the standard and increase the overall strength. The existing device adopts a resistance spot welding process with multiple evenly distributed convex point structures, which is prone to electric sparks, carbon deposition and uneven heating at the molten core, resulting in a large gap between the screw plate 6 and the sealing plate 3, resulting in incomplete fit of the screw sealing plate assembly 2, and the technical problem of poor consistency in the leakage of the check valve.

[0033] Working principle:

[0034] In the first step, the screw plate 6 is connected to the dense plate 3 by riveting the rivet bolts 5 and the riveting holes 7. The dense plate 3 and the screw plate 6 are threadedly connected to the filter body 1 through the threaded joint 4. The matching bevel 2 9 of the dense plate 3 and the matching bevel 1 8 of the screw plate 6 are completely fitted to ensure the sealing. The screw plate 6 is designed as a fixed plate oil inlet through hole, and the dense plate 3 is designed as a forming plate oil inlet stretched and pre-punched. The oil inlet hole of the dense plate 3 is riveted to the oil inlet hole of the screw plate 6 by mechanical stamping to form a completely fitted state.

[0035] In the second step, by providing a gripping plate 101 and a gripping groove 104, the staff can use greater force when disassembling the entire device, and the surface of the gripping plate 101 is set to be rough, which is convenient for the staff to exert force. When the entire device cannot be manually disassembled using the gripping plate 101, using a wrench in conjunction with the hexagonal steel block 102 can provide greater torque to separate the entire device from the engine, making the present application easy to disassemble.

[0036] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A fully covered sealed oil filter, comprising a filter body (1), wherein a filter paper (103) is arranged inside the filter body (1), characterized in that: The bottom of the filter body (1) is threadedly connected with a screw-lock plate assembly (2); The screw plate assembly (2) comprises a seal plate (3), a threaded joint (4), a rivet bolt (5) and a screw plate (6); the threaded joint (4) is fixedly connected to the top surface of the seal plate (3); the threaded joint (4) is threadedly connected to the filter body (1); the screw plate (6) is provided with eight rivet holes (7); the screw plate (6) is provided with a first matching bevel (8); the top surface of the seal plate (3) is provided with a second matching bevel (9); eight rivet bolts (5) are fixedly connected to the top surface of the seal plate (3); the eight rivet bolts (5) are arranged on the second matching bevel (9); the top contact positions of the seal plate (3) where the second matching bevel (9) is arranged and the screw plate (6) where the first matching bevel (8) is arranged are both designed with circular arcs, and the angles are consistent.

2. A fully covered sealed oil filter as claimed in claim 1, characterized in that: A holding plate (101) is fixedly connected to the top of the filter body (1), a holding groove (104) is provided on the surface of the holding plate (101), and a hexagonal steel block (102) is fixedly connected to one end of the holding plate (101) away from the filter body (1).

3. A fully covered sealed oil filter as claimed in claim 1 or 2, characterized in that: The portion of the seal plate (3) where the matching inclined surface 2 (9) is arranged fits with the portion of the screw plate (6) where the matching inclined surface 1 (8) is arranged, and the seal plate (3) is located below the screw plate (6).

4. A fully covered sealed oil filter as claimed in claim 2, characterized in that: The holding groove (104) is fixedly connected to the axis of the holding plate (101) at one end away from the filter body (1).

5. A fully covered sealed oil filter as claimed in claim 4, characterized in that: The surface of the holding plate (101) is polished into a rough shape by using a sandblasting process.

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