Layered engine filter element

Abstract

The utility model relates to the technical field of automobile maintenance, in particular to a layered engine filter element which comprises an outer shell, a check valve part, a central pipe, first filter paper, a bypass valve part and an inner-layer filter set, the central pipe is arranged in the outer shell, and the first filter paper is arranged between the outer shell and the peripheral face of the central pipe. A check valve part is arranged at one end of the center pipe and comprises a metal disc, a rubber ring and a sealing ring, the metal disc is installed at one end of the center pipe, the rubber ring is arranged between the metal disc and the center pipe, and the sealing ring is embedded in the top of the shell and is in interference fit with the metal disc. The No.1 filter paper and the No.2 filter paper are respectively arranged between the shell and the central pipe and on the bypass valve for filtering, so that impurities and pollutants of engine oil discharged by the bypass valve can be fully removed, and the filtering effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile maintenance, in particular to a layered engine filter element. Background Art

[0002] The engine filter is a filter located inside the engine. Its main function is to filter the oil circulating inside the engine and remove impurities and pollutants in the oil, such as dust, metal particles, carbon deposits and soot particles, to protect the engine from pollution and reduce wear, thereby extending the life of the engine.

[0003] The engine filter element is mainly composed of a shell, filter paper, a center tube, a check valve and a bypass valve. However, the existing engine filter element only has a filtering structure between the shell and the outer peripheral surface of the center tube, and the internal bypass valve lacks a filtering structure. During the operation of the bypass valve, the oil flowing out of the bypass valve cannot be filtered, and impurities and pollutants therein cannot be effectively removed, resulting in poor overall filtering effect.

[0004] To this end, this patent provides a layered engine filter element. Utility Model Content

[0005] In order to overcome the shortcomings of the existing engine filter element that only has an outer filter structure and lacks a filter structure on the internal bypass valve, the oil flowing out during operation cannot be filtered, the impurities and pollutants therein cannot be effectively removed, and the overall filtering effect is poor, the utility model provides a layered engine filter element.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions: a layered engine filter element, including an outer shell, a check valve part, a center tube, a No. 1 filter paper, a bypass valve part and an inner filter group, the inner shell is provided with a center tube, a No. 1 filter paper is provided between the outer shell and the outer peripheral surface of the center tube, a check valve part is provided at one end of the center tube, the check valve part includes a metal disc, a rubber ring and a sealing ring, the metal disc is installed at one end of the center tube, the rubber ring is arranged between the metal disc and the center tube, and the sealing ring is embedded in the top of the outer shell. and has an interference fit with the metal disk, the metal disk and the sealing ring are both provided with oil inlet holes, the other end of the center tube is provided with a bypass valve part, the bypass valve part includes a tapered guide pipe, a valve plate, a first elastic member and a connecting rod, the end of the center tube away from the sealing ring is provided with a pressure relief port, the center tube is provided with a tapered guide pipe located above the pressure relief port, the pressure relief port is installed with a valve plate, a first elastic member is connected between the valve plate and the tapered guide pipe, a connecting rod is fixed to the valve plate, and an inner filter group is provided on the tapered guide pipe.

[0007] Furthermore, the rubber ring has a certain elasticity.

[0008] Furthermore, the inner filter group includes a filter tube, a connecting frame, No. 2 filter paper, a water stop plug and a second elastic member. The filter tube is fixedly connected to the conical guide tube, No. 2 filter paper is arranged in the filter tube, the connecting frame is fixedly connected to the filter tube, a water stop plug is arranged on the top of the filter tube, and a second elastic member is connected between the water stop plug and the connecting frame.

[0009] Furthermore, a prompting device is included, which includes a waterproof box, an intelligent prompter, wires, batteries, a cover plate and an insulating plate. The waterproof box and the intelligent prompter are arranged on one end of the outer shell close to the connecting rod, and the intelligent prompter is connected to the waterproof box through wires. Two groups of batteries are arranged inside the waterproof box. A cover plate is arranged at the bottom of the waterproof box, and the waterproof box is closed by the cover plate. An insulating plate is arranged on the connecting rod.

[0010] Furthermore, a first sealing ring is included. The first sealing ring is embedded at the connection between the metal disk and the sealing ring to fill the gap between the metal disk and the sealing ring.

[0011] Furthermore, it also includes a second sealing ring, and the second sealing ring is embedded in the top of the filter tube to fill the gap between the filter tube and the water stop plug.

[0012] Compared with the prior art, the utility model has the following technical effects: 1. By arranging No. 1 filter paper and No. 2 filter paper between the outer shell and the center tube and on the bypass valve for filtering, the oil discharged from the bypass valve can also fully remove impurities and pollutants, thereby improving the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the sealing ring, the central tube and the No. 1 filter paper of the utility model.

[0015] Figure 3 It is an exploded view of the sealing ring, metal disk and rubber ring of the utility model.

[0016] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the conical flow guide pipe, valve plate and connecting rod of the utility model.

[0017] Figure 5 It is an exploded view of the conical flow guide pipe, the valve plate and the first elastic member of the utility model.

[0018] Figure 6 It is a three-dimensional cross-sectional structural schematic diagram of the filter tube, the connecting frame and the No. 2 filter paper of the utility model.

[0019] Figure 7 It is a three-dimensional cross-sectional structural schematic diagram of the housing and the connecting rod of the utility model.

[0020] Figure 8 The exploded diagram of the waterproof box, intelligent reminder and wires of the utility model.

[0021] In the accompanying drawings: 1. outer casing, 2. sealing ring, 3. metal plate, 4. rubber ring, 5. oil inlet hole, 6. center tube, 7. No. 1 filter paper, 8. pressure relief port, 9. conical guide tube, 10. valve plate, 11. first elastic member, 12. connecting rod, 13. filter tube, 14. connecting frame, 15. No. 2 filter paper, 16. water stop plug, 17. second elastic member, 18. waterproof box, 19. intelligent reminder, 20. electric wire, 21. battery, 22. cover plate, 23. insulating plate, 24. first sealing ring, 25. second sealing ring. DETAILED DESCRIPTION

[0022] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0023] Example 1

[0024] See also Figure 1-Figure 4, a layered engine filter element, comprising an outer shell 1, a check valve part, a center tube 6, a first filter paper 7, a bypass valve part and an inner filter group, wherein a center tube 6 is arranged inside the outer shell 1, a first filter paper 7 is arranged between the outer shell 1 and the outer circumference of the center tube 6, a check valve part is arranged at one end of the center tube 6, the check valve part comprises a metal disc 3, a rubber ring 4, a sealing ring 2 and a first sealing ring 24, the metal disc 3 is installed at one end of the center tube 6, the rubber ring 4 is arranged between the metal disc 3 and the center tube 6, the rubber ring 4 has a certain elasticity, when conveying a certain pressure of engine oil, the rubber ring 4 can be deformed, thereby opening the check valve, the sealing ring 2 is embedded in the top of the outer shell 1, and has an interference fit with the metal disc 3, the metal disc 3 and the sealing ring 2 are both provided with an oil inlet hole 5, and the first sealing ring 24 is embedded at the connection between the metal disc 3 and the sealing ring 2 for filling the metal The gap between the disk 3 and the sealing ring 2 plays a sealing role. The other end of the central tube 6 is provided with a bypass valve part. When the No. 1 filter paper 7 is blocked by too many impurities, the bypass valve can be temporarily opened to allow the oil to bypass the filter element to reach the engine parts that need lubrication to avoid causing greater losses. The bypass valve part includes a conical guide tube 9, a valve plate 10, a first elastic member 11 and a connecting rod 12. The end of the central tube 6 away from the sealing ring 2 is provided with a pressure relief port 8. The central tube 6 is provided with a conical guide tube 9 located above the pressure relief port 8. The pressure relief port 8 is installed with a valve plate 10. The first elastic member 11 is connected between the valve plate 10 and the conical guide tube 9. Under the action of the first elastic member 11, the valve plate 10 can move up and down to realize the opening and closing of the pressure relief port 8. The valve plate 10 is fixed with a connecting rod 12, and the conical guide tube 9 is provided with an inner filter group.

[0025] See also Figure 5 and Figure 6 The inner filter group includes a filter tube 13, a connecting frame 14, a No. 2 filter paper 15, a water stop plug 16, a second elastic member 17 and a second sealing ring 25. The filter tube 13 is fixedly connected to the top of the conical guide tube 9. The No. 2 filter paper 15 is arranged in the filter tube 13. The No. 2 filter paper 15 is used to filter the oil discharged from the bypass valve to improve the overall filtering effect of the filter element. The filter tube 13 is fixedly connected to the top of the connecting frame 14. The water stop plug 16 is arranged on the top of the filter tube 13. A second elastic member 17 is connected between the water stop plug 16 and the connecting frame 14. Pressure relief can be carried out by moving the water stop plug 16 up and down. A second sealing ring 25 is embedded in the top of the filter tube 13 to fill the gap between the filter tube 13 and the water stop plug 16.

[0026] During the operation of the engine, the oil pump delivers oil with a certain pressure. The oil enters from the oil inlet hole 5 and will break the rubber ring 4, then enters the outer shell 1 to the outer layer of the No. 1 filter paper 7 to wait for filtration. At this time, the valve plate 10 is in a closed state due to the suppression of the first elastic member 11. Then, under the action of the oil pressure, the oil continuously passes through the No. 1 filter paper 7 and enters the central tube 6, and then flows into the engine lubrication system for lubrication, while the impurities in the oil remain on the No. 1 filter paper 7. As the impurities continue to accumulate on the No. 1 filter paper 7, the permeability of the No. 1 filter paper 7 continues to decrease, the flow resistance continues to increase, and the oil pressure outside the No. 1 filter paper 7 continues to rise. At this time, the oil pushes the valve plate 10 open, and the oil enters the filter tube 13 from the pressure relief port 8, is filtered by the No. 2 filter paper 15, and then flows into the central tube 6. When the No. 2 filter paper 15 is blocked and the oil pressure in the filter tube 13 rises, the water stop plug 16 can be movably opened for pressure relief.

[0027] Example 2

[0028] Based on Example 1, please refer to Figure 7 and Figure 8 , also includes a prompting device, the prompting device includes a waterproof box 18, an intelligent prompter 19, an electric wire 20, a battery 21, a cover plate 22 and an insulating plate 23, the outer end of the shell 1 close to the connecting rod 12 is provided with a waterproof box 18 and an intelligent prompter 19, the intelligent prompter 19 is connected to the waterproof box 18 through the electric wire 20, two groups of batteries 21 are arranged inside the waterproof box 18, a cover plate 22 is arranged at the bottom of the waterproof box 18, the waterproof box 18 is closed by the cover plate 22, and an insulating plate 23 is arranged on the connecting rod 12, and the two groups of batteries 21 can be separated by the insulating plate 23 to perform a power-off operation.

[0029] When the bypass valve is opened, it indicates that the filter paper No. 1 7 is clogged. At this time, the valve plate 10 uses the connecting rod 12 to drive the insulating plate 23 to rise, so that the insulating plate 23 separates the two groups of batteries 21 to cut off the power. The intelligent reminder 19 receives the power-off response and immediately sends a signal to the car's intelligent system to prompt, so that the driver can find and replace the filter element in time to ensure the safety of the engine.

[0030] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A layered engine filter element, comprising a shell (1), a check valve portion, a center tube (6), a first filter paper (7) and a bypass valve portion, wherein the shell (1) is provided with a center tube (6), a first filter paper (7) is provided between the shell (1) and the outer circumference of the center tube (6), a check valve portion is provided at one end of the center tube (6), the check valve portion comprises a metal disc (3), a rubber ring (4) and a sealing ring (2), the metal disc (3) is mounted at one end of the center tube (6), the rubber ring (4) is arranged between the metal disc (3) and the center tube (6), the sealing ring (2) is embedded in the top of the shell (1) and is interference fit with the metal disc (3), The metal plate (3) and the sealing ring (2) are both provided with an oil inlet hole (5); the other end of the center tube (6) is provided with a bypass valve part, and the bypass valve part comprises a conical guide tube (9), a valve plate (10), a first elastic member (11) and a connecting rod (12); the end of the center tube (6) away from the sealing ring (2) is provided with a pressure relief port (8); the center tube (6) is provided with a conical guide tube (9) located above the pressure relief port (8); the pressure relief port (8) is installed with a valve plate (10); a first elastic member (11) is connected between the valve plate (10) and the conical guide tube (9); a connecting rod (12) is fixedly connected to the valve plate (10); and the invention is characterized in that: It also includes an inner filter group, and the inner filter group is arranged on the conical flow guide pipe (9).

2. A layered engine filter element according to claim 1, characterized in that: The rubber ring (4) has a certain elasticity.

3. A layered engine filter element according to claim 1, characterized in that: The inner filter group comprises a filter tube (13), a connecting frame (14), a second filter paper (15), a water stopper (16) and a second elastic member (17); the filter tube (13) is fixedly connected to the conical flow guide tube (9); the second filter paper (15) is arranged in the filter tube (13); the connecting frame (14) is fixedly connected to the filter tube (13); a water stopper (16) is arranged on the top of the filter tube (13); and a second elastic member (17) is connected between the water stopper (16) and the connecting frame (14).

4. A layered engine filter element according to claim 1, characterized in that: The invention also comprises a prompting device, which comprises a waterproof box (18), an intelligent prompter (19), an electric wire (20), a battery (21), a cover plate (22) and an insulating plate (23). The waterproof box (18) and the intelligent prompter (19) are arranged at one end of the outer shell (1) close to the connecting rod (12). The intelligent prompter (19) is connected to the waterproof box (18) through the electric wire (20). Two groups of batteries (21) are arranged inside the waterproof box (18). The bottom of the waterproof box (18) is provided with a cover plate (22), and the waterproof box (18) is closed by the cover plate (22). The connecting rod (12) is provided with an insulating plate (23).

5. A layered engine filter element according to claim 1, characterized in that: It also includes a first sealing ring (24), which is embedded at the connection between the metal disk (3) and the sealing ring (2) and is used to fill the gap between the metal disk (3) and the sealing ring (2).

6. A layered engine filter element according to claim 3, characterized in that: It also includes a second sealing ring (25), which is embedded in the top of the filter tube (13) and is used to fill the gap between the filter tube (13) and the water stopper (16).

Images