Efficient and portable totally-closed lubricating oil three-stage filter
By designing a high-efficiency, portable, fully enclosed three-stage lubricating oil filter, a filtration channel is formed by connecting short pipe sections, ball valves, and multiple connecting shells. Each connecting shell contains a filter screen with a different mesh size, which solves the problem of lubricating oil and environmental pollution caused by multiple container changes in the existing technology, and achieves fully enclosed three-stage filtration and high-efficiency filtration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI YANCHANG PETROLEUM GRP
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-21
AI Technical Summary
The existing three-stage filtration process requires multiple container changes, which poses a risk of secondary contamination of lubricating oil and environmental pollution.
A high-efficiency, portable, fully enclosed three-stage lubricating oil filter was designed. The filter channel is formed by connecting short pipes, ball valves, multiple connecting shells and filter cylinders. Each connecting shell is equipped with a filter screen of different mesh size to achieve three-stage filtration. The filter screen is fixed by threaded connection and chuck to ensure stable use.
It achieves three-stage filtration in a fully enclosed environment, reducing the risk of lubricant and environmental contamination, and improving filtration efficiency and portability.
Smart Images

Figure CN224141606U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lubricating oil filter technology, and in particular to a high-efficiency, portable, fully enclosed three-stage lubricating oil filter. Background Technology
[0002] A lubricating oil filter is a device used to filter out impurities, contaminants, and harmful substances such as moisture from lubricating oil. It is widely used in various mechanical equipment that requires lubrication, such as engines, gearboxes, and hydraulic systems.
[0003] In the existing technology, operators have to switch containers several times to achieve three-stage filtration in the previous three-stage filtration process. The whole process is not in a fully enclosed environment, which increases the risk of secondary contamination of lubricating oil and environmental pollution during operation. Utility Model Content
[0004] The purpose of this invention is to solve the problem that in the previous three-stage filtration process, the operator had to change containers several times to achieve three-stage filtration. The whole process was not in a fully enclosed environment, which increased the risk of secondary contamination of lubricating oil and environmental pollution during operation. The invention proposes a high-efficiency, portable, fully enclosed three-stage lubricating oil filter.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A high-efficiency, portable, fully enclosed three-stage lubricating oil filter includes an oil drum connection port. A connecting short section is fixedly connected to the side wall of the oil drum connection port. A ball valve is located at the end of the connecting short section away from the oil drum connection port. A first connecting shell is located at the end of the ball valve away from the connecting short section. A first filter cartridge is inserted into the end of the first connecting shell away from the ball valve. A second connecting shell is inserted into the end of the first filter cartridge away from the first connecting shell. An elbow is located at the end of the second connecting shell away from the first filter cartridge. A third connecting shell is located at the end of the elbow, away from the second connecting shell. A second filter cartridge is inserted into the end of the third connecting shell away from the elbow. An output port is located at the bottom of the second filter cartridge. Connecting rings are inserted into the interior of the first, second, and third connecting shells. A mesh filter is located inside the first connecting shell and fixed to the inner wall of the connecting ring. A mesh filter is located inside the second connecting shell and fixed to the inner wall of the connecting ring. A mesh filter is located inside the third connecting shell and fixed to the inner wall of the connecting ring.
[0007] Preferably, the ball valve has a first threaded pipe at each end, which is threaded to the inner wall of the connecting short pipe and the first connecting shell respectively.
[0008] Preferably, the two ends of the elbow are respectively fixedly connected to the second threaded pipe and respectively threaded to the inner walls of the second connecting shell and the third connecting shell.
[0009] Preferably, threaded rings are fixedly connected to both ends of the first filter cylinder and the second filter cylinder, and the corresponding ends of the first connecting shell and the second connecting shell are threaded to the side walls of the threaded rings at both ends of the first filter cylinder, and the corresponding ends of the third connecting shell and the output interface are threaded to the side walls of the threaded rings at both ends of the second filter cylinder.
[0010] Preferably, the inner walls on both sides of the plurality of connecting rings are respectively provided with grooves, and the inner walls of the grooves are rotatably provided with chucks. The inner walls of the first connecting shell, the second connecting shell and the third connecting shell are respectively provided with slots, and the plurality of chucks are respectively clamped and disposed on the inner walls of the slots.
[0011] Preferably, a rotating handle is fixedly connected to the side wall of each of the plurality of chucks, and a notch is provided on the side wall of the connecting ring, with the rotating handle extending to the inner wall of the notch.
[0012] Compared with the prior art, this utility model provides a high-efficiency, portable, fully enclosed three-stage lubricating oil filter, which has the following beneficial effects:
[0013] 1. This high-efficiency, portable, fully enclosed three-stage lubricating oil filter is formed by connecting short pipes, ball valves, multiple connecting shells (first connecting shell, second connecting shell, third connecting shell, first filter cartridge, second filter cartridge, and elbow pipe) in sequence to create a lubricating oil filtration channel. Each connecting shell contains a filter screen with a different mesh size: a 60-mesh filter screen in the first connecting shell, an 80-mesh filter screen in the second connecting shell, and a 100-mesh filter screen in the third connecting shell, thus achieving a three-stage filtration function.
[0014] 2. This high-efficiency, portable, fully enclosed three-stage lubricating oil filter uses a first threaded tube to connect and fix the ball valve to the connecting short section tube and the first connecting shell at both ends respectively. The second threaded tube can connect and fix the elbow tube to the second and third connecting shells at both ends respectively. Multiple threaded rings can connect and fix the first and second connecting shells to the first filter cartridge. The third connecting shell and the output interface are connected and fixed to the second filter cartridge.
[0015] 3. This high-efficiency, portable, fully enclosed three-stage lubricating oil filter uses a chuck that rotates within the grooves on the inner walls of the connecting ring. The connecting ring with the filter screen is inserted into the corresponding first, second, or third connecting shell. Rotating the handle on the chuck causes it to engage with the slot on the inner wall of the connecting shell, thus securing the connecting ring. This ensures the normal use of 60-mesh, 80-mesh, and 100-mesh filters. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the high-efficiency, portable, fully enclosed three-stage lubricating oil filter proposed in this utility model.
[0017] Figure 2 for Figure 1 Enlarged structural diagram of part A in the middle section;
[0018] Figure 3 for Figure 1 A three-dimensional view of the structure of the first connecting shell in the middle;
[0019] Figure 4 for Figure 1 Three-dimensional view of the structure of the second connecting shell.
[0020] In the diagram: 1. Oil drum connection port; 2. Connecting short pipe; 3. Ball valve; 4. First connecting shell; 5. First filter cylinder; 6. Second connecting shell; 7. Elbow pipe; 8. Third connecting shell; 9. Second filter cylinder; 10. Output interface; 11. First threaded pipe; 12. Second threaded pipe; 13. Threaded ring; 14. Connecting ring; 15. 60-mesh filter screen; 16. 80-mesh filter screen; 17. 100-mesh filter screen; 18. Chuck; 19. Rotary handle. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figure 1-4 A high-efficiency, portable, fully enclosed three-stage lubricating oil filter includes an oil drum connection port 1. A connecting short pipe 2 is fixedly connected to the side wall of the oil drum connection port 1. A ball valve 3 is provided at the end of the connecting short pipe 2 opposite to the oil drum connection port 1. A first connecting shell 4 is provided at the end of the ball valve 3 opposite to the connecting short pipe 2. A first filter cartridge 5 is inserted into the end of the first connecting shell 4 opposite to the ball valve 3. A second connecting shell 6 is inserted into the end of the first filter cartridge 5 opposite to the first connecting shell 4. An elbow pipe 7 is provided at the end of the second connecting shell 6 opposite to the first filter cartridge 5. The first connecting shell 4, the second connecting shell 6 and the third connecting shell 8 are respectively provided with a third connecting shell 8. The second connecting shell 8 is connected to a second filter cylinder 9 at the end opposite to the elbow pipe 7. The bottom of the second filter cylinder 9 is provided with an output interface 10. The first connecting shell 4, the second connecting shell 6 and the third connecting shell 8 are respectively provided with a connecting ring 14. The first connecting shell 4 is provided with a 60-mesh filter screen 15 and is fixed to the inner wall of the connecting ring 14. The second connecting shell 6 is provided with an 80-mesh filter screen 16 and is fixed to the inner wall of the connecting ring 14. The inner wall of the third connecting shell 8 is provided with a 100-mesh filter screen 17 and is fixed to the inner wall of the connecting ring 14.
[0023] The ball valve 3 has a first threaded pipe 11 at both ends, which is threaded to the inner wall of the connecting short pipe 2 and the first connecting shell 4 respectively. The elbow pipe 7 is fixedly connected to the second threaded pipe 12 at both ends, which is threaded to the inner wall of the second connecting shell 6 and the third connecting shell 8 respectively.
[0024] The first filter cylinder 5 and the second filter cylinder 9 are respectively fixedly connected to the two ends of threaded rings 13. The corresponding ends of the first connecting shell 4 and the second connecting shell 6 are respectively threaded to the side walls of the threaded rings 13 at both ends of the first filter cylinder 5. The corresponding ends of the third connecting shell 8 and the output interface 10 are respectively threaded to the side walls of the threaded rings 13 at both ends of the second filter cylinder 9.
[0025] This filter uses the oil tank connection port 1 as the connection component to the lubricating oil storage tank. It is connected in sequence through the short pipe 2, ball valve 3, multiple connecting shells, first connecting shell 4, second connecting shell 6, third connecting shell 8, first filter cylinder 5, second filter cylinder 9, and elbow pipe 7, forming a filtration channel for lubricating oil. Each connecting shell is equipped with a filter screen of different mesh size: a 60-mesh filter screen 15 in the first connecting shell 4, an 80-mesh filter screen 16 in the second connecting shell 6, and a 100-mesh filter screen 17 in the third connecting shell 8, realizing a three-stage filtration function. The output port 10 is used to output the filtered lubricating oil.
[0026] The ball valve 3 is fixed by threading the first threaded pipe 11 to the connecting short pipe 2 and the first connecting shell 4 at both ends. The second threaded pipe 12 can fix the elbow pipe 7 to the second connecting shell 6 and the third connecting shell 8 at both ends. Multiple threaded rings 13 can fix the first connecting shell 4 and the second connecting shell 6 to the first filter cylinder 5. The third connecting shell 8 and the output interface 10 are fixed by threading the second filter cylinder 9.
[0027] To ensure a stable connection of the connecting ring 14, such as Figure 1-4 As shown, grooves are provided on the inner walls of the two sides of the multiple connecting rings 14, and chucks 18 are rotatably provided on the inner walls of the grooves. Slots are provided on the inner walls of the first connecting shell 4, the second connecting shell 6 and the third connecting shell 8. The multiple chucks 18 are respectively clamped on the inner walls of the slots. Rotating handles 19 are fixedly connected to the side walls of the multiple chucks 18. Notches are provided on the side walls of the connecting rings 14, and the rotating handles 19 extend to the inner walls of the notches.
[0028] A chuck 18 is rotatably installed in the grooves on both sides of the inner wall of the connecting ring 14. The connecting ring 14 with the filter screen is inserted into the corresponding first connecting shell 4, second connecting shell 6 or third connecting shell 8. The handle 19 on the chuck 18 is rotated so that the chuck 18 is engaged in the slot on the inner wall of the connecting shell, thereby fixing the connecting ring 14. This ensures the normal use of the 60-mesh filter 15, 80-mesh filter 16 and 100-mesh filter 17.
[0029] 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. A high efficiency, portable, totally enclosed, three-stage lubricating oil filter comprising an oil drum connection port (1), characterized in that: A connecting short pipe (2) is fixedly connected to the side wall of the oil drum connection port (1). A ball valve (3) is provided at the end of the connecting short pipe (2) away from the oil drum connection port (1). A first connecting shell (4) is provided at the end of the ball valve (3) away from the connecting short pipe (2). A first filter cylinder (5) is inserted into the end of the first connecting shell (4) away from the ball valve (3). A second connecting shell (6) is inserted into the end of the first filter cylinder (5) away from the first connecting shell (4). A bend pipe (7) is provided at the end of the second connecting shell (6) away from the first filter cylinder (5). A third connecting shell (8) is provided at the end of the bend pipe (7) away from the second connecting shell (6). The third connecting shell (8) is connected to a second filter cylinder (9) at the end opposite to the elbow pipe (7). The bottom of the second filter cylinder (9) is provided with an output interface (10). The first connecting shell (4), the second connecting shell (6) and the third connecting shell (8) are respectively connected to a connecting ring (14). The first connecting shell (4) is provided with a 60-mesh filter screen (15) and is fixed to the inner wall of the connecting ring (14). The second connecting shell (6) is provided with an 80-mesh filter screen (16) and is fixedly connected to the inner wall of the connecting ring (14). The inner wall of the third connecting shell (8) is provided with a 100-mesh filter screen (17) and is fixedly connected to the inner wall of the connecting ring (14).
2. The efficient, portable, totally enclosed, three-stage lubricating oil filter of claim 1, wherein: The ball valve (3) has a first threaded pipe (11) at each end, which is threaded to the inner wall of the connecting short pipe (2) and the first connecting shell (4).
3. The efficient, portable, totally enclosed, three-stage lubricating oil filter of claim 1, wherein: The two ends of the elbow pipe (7) are respectively fixedly connected to the second threaded pipe (12) and respectively threaded to the inner walls of the second connecting shell (6) and the third connecting shell (8).
4. The efficient, portable, totally enclosed, three-stage lubricating oil filter of claim 1, wherein: The first filter cylinder (5) and the second filter cylinder (9) are respectively fixedly connected to threaded rings (13). The corresponding ends of the first connecting shell (4) and the second connecting shell (6) are respectively threaded to the side walls of the threaded rings (13) at both ends of the first filter cylinder (5). The corresponding ends of the third connecting shell (8) and the output interface (10) are respectively threaded to the side walls of the threaded rings (13) at both ends of the second filter cylinder (9).
5. The efficient, portable, totally enclosed, three-stage lubricating oil filter of claim 1, wherein: The inner walls of the multiple connecting rings (14) are respectively provided with grooves, and the inner walls of the grooves are provided with chucks (18). The inner walls of the first connecting shell (4), the second connecting shell (6) and the third connecting shell (8) are respectively provided with slots, and the multiple chucks (18) are respectively clamped and disposed on the inner walls of the slots.
6. The efficient, portable, totally enclosed, three-stage lubricating oil filter of claim 5, wherein: A rotating handle (19) is fixedly connected to the side wall of each of the multiple chucks (18), and a notch is provided on the side wall of the connecting ring (14), with the rotating handle (19) extending to the inner wall of the notch.