Engine oil recovery device

By designing a sliding drum to strike the filter plate and using inert gas treatment, the problems of impurity deposition and oxidation during oil recycling were solved, achieving stability in oil purity and flow rate, extending the storage period, and improving the quality of regenerated oil.

CN224498160UActive Publication Date: 2026-07-14韩铁山

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
韩铁山
Filing Date
2025-09-24
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In the current automotive oil recycling process, impurities such as metal shavings, carbon particles, and sludge in waste oil can easily enter the storage tank or subsequent processing equipment directly with the oil, causing blockage of the delivery pipeline, wear of the pump body, and the need for frequent shutdowns for disassembly and cleaning, which affects the recycling efficiency and the quality of the recycled oil.

Method used

Design an oil recovery device comprising a storage tank and a filter assembly. The device utilizes a sliding cylinder that moves up and down within a fixed cylinder to strike a filter plate, intercepting solid contaminants. Inert gas heating and extraction of water vapor are used to prevent impurity deposition and oxidation reactions.

Benefits of technology

It effectively intercepts solid contaminants, maintains stable oil purity and flow, prevents filter clogging, extends oil storage life, and improves the quality of regenerated oil.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224498160U_ABST
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Abstract

The utility model relates to machine oil recovery technical field, and disclose a kind of machine oil recovery device, including storage tank, the inside of storage tank is provided with filter assembly, and the top of storage tank is provided with heating assembly;The filter assembly includes the feed pipe of storage tank outer surface top fixed connection, and the inside fixed connection of feed pipe has filter plate, the inner wall fixed connection of feed pipe has fixed cylinder, and the inside of fixed cylinder is vertically direction slidingly embedded with sliding cylinder, and the outer surface of sliding cylinder is wound with second spring;The heating assembly includes the gas storage tank of fixed connection in the top of storage tank outer surface, and the inside of gas storage tank is provided with diaphragm, and the top of storage tank outer surface is fixedly connected with heating device, and the inside of heating device is provided with gas outlet pipe, and the end of gas outlet pipe away from heating device is arranged in the inside of feed pipe, solve the problem that impurity in waste machine oil is directly entered storage tank with machine oil in use process.
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Description

Technical Field

[0001] This utility model relates to the field of engine oil recovery technology, specifically to an engine oil recovery device. Background Technology

[0002] In the current automotive engine oil recycling process, impurities such as metal shavings, carbon particles, and sludge in waste engine oil can easily enter storage tanks or subsequent processing equipment directly with the oil. This can not only easily clog delivery pipelines and wear down pump bodies and heat exchanger components, but also require frequent shutdowns to disassemble and clean related components, resulting in limited overall recycling efficiency. Impurities that are not intercepted in advance will mix with the engine oil for a long time, which may catalyze adverse reactions in the engine oil and affect the final quality of the recycled engine oil. Utility Model Content

[0003] The purpose of this invention is to provide an oil recovery device to solve the problem in the existing automotive oil recovery process mentioned above, where impurities such as metal fragments, carbon particles, and sludge in waste oil easily enter the storage tank or subsequent processing equipment directly with the oil. This not only easily clogs the delivery pipeline and wears down the pump body and heat exchanger components, but also requires frequent shutdowns to disassemble and clean related components, resulting in limited overall recovery efficiency. Furthermore, impurities that are not intercepted in advance will mix with the oil for a long time, which may catalyze adverse reactions in the oil and affect the final quality of the regenerated oil.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an oil recovery device, including a storage tank, wherein a filter assembly is provided inside the storage tank, and a heating assembly is provided on the top of the storage tank;

[0005] The filter assembly includes a feed pipe fixedly connected to the top of the outer surface of the storage tank, and a filter plate fixedly connected inside the feed pipe. A fixed cylinder is fixedly connected to the inner wall of the feed pipe, and a sliding cylinder is slidably embedded inside the fixed cylinder in a vertical direction. A second spring is wound around the outer surface of the sliding cylinder.

[0006] The heating assembly includes a gas storage box fixedly connected to the top of the outer surface of the storage box, and a diaphragm is provided inside the gas storage box. A heating device is fixedly connected to the top of the outer surface of the storage box, and an air outlet pipe is provided inside the heating device. The end of the air outlet pipe away from the heating device is located inside the feed pipe.

[0007] Preferably, a power shaft is rotatably embedded inside the feed pipe, and the power shaft is rotatably embedded inside the fixed cylinder. A first connecting plate is fixedly connected to the outer surface of the power shaft, and a first connecting post is rotatably embedded inside the first connecting plate. A second connecting plate is rotatably sleeved on the outer surface of the first connecting post.

[0008] Preferably, a third connecting post is rotatably embedded inside the second connecting plate, a sliding rod is slidably embedded inside the sliding cylinder in a vertical direction, and a connecting frame is fixedly connected to one side of the outer surface of the sliding rod. The third connecting post is rotatably embedded inside the connecting frame, a first spring is wound around the outer surface of the sliding rod, and a baffle is fixedly connected to the outer surface of the sliding cylinder.

[0009] Preferably, an air pump is fixedly connected to the top of the outer surface of the storage box, and an air extraction pipe is provided inside the air pump, with the end of the air extraction pipe away from the air pump located inside the storage box.

[0010] Preferably, the gas storage tank is provided with an air inlet pipe, and the end of the air inlet pipe away from the gas storage tank is located inside the air pump. The gas storage tank is also provided with a guide pipe, and the end of the guide pipe away from the gas storage tank is located inside the heating device.

[0011] Preferably, a gas supply pipe is fixedly connected to the top of the outer surface of the gas storage tank, and a gas release pipe is fixedly connected to the outer surface of the gas storage tank.

[0012] Preferably, a drive motor is fixedly connected to the outer surface of the feed pipe, and the output shaft of the drive motor is fixedly connected to the power shaft. A discharge pipe is provided inside the storage box, and an observation window is provided on the outer surface of the storage box.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] Firstly, in this invention, the operator unscrews the threaded cover plate on the feed pipe and adds engine oil into the storage tank through the feed pipe. The engine oil is filtered through the filter plate and enters the storage tank. The drive motor is turned on, and the output shaft of the drive motor drives the power shaft to rotate. The rotation of the power shaft drives the slide rod to move up and down through the first and second connecting plates. The up and down movement of the slide rod drives the slide cylinder to move inside the fixed cylinder through the first spring. The up and down movement of the slide cylinder inside the fixed cylinder causes the slide cylinder to strike the filter plate. Through the above technical solution, the filter plate in the feed pipe can directly intercept solid contaminants in the waste engine oil, such as metal shavings generated by engine wear, carbon particles generated by combustion, dust, sludge, etc., preventing impurities from accumulating in the storage tank, avoiding bottom contamination and oil stratification, ensuring uniform purity of the engine oil in the tank, and preventing the filter holes in the filter plate from becoming clogged by the striking of the slide cylinder, thus maintaining a stable feed flow.

[0015] Secondly, in this invention, the operator unscrews the threaded cover plate on the feed pipe and adds engine oil into the storage tank through the feed pipe. The engine oil is filtered through the filter plate and enters the storage tank. The drive motor is turned on, and the output shaft of the drive motor drives the power shaft to rotate. The rotation of the power shaft drives the slide rod to move up and down through the first and second connecting plates. The up and down movement of the slide rod drives the slide cylinder to move inside the fixed cylinder through the first spring. The up and down movement of the slide cylinder inside the fixed cylinder causes the slide cylinder to strike the filter plate. Through the above technical solution, the filter plate in the feed pipe can directly intercept solid contaminants in the waste engine oil, such as metal shavings generated by engine wear, carbon particles generated by combustion, dust, sludge, etc., preventing impurities from accumulating in the storage tank, avoiding bottom contamination and oil stratification, ensuring uniform purity of the engine oil in the tank, and preventing the filter holes in the filter plate from becoming clogged by the striking of the slide cylinder, thus maintaining a stable feed flow. Attached Figure Description

[0016] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0017] Figure 2 This is the second three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 3 This is a schematic diagram of the anatomical three-dimensional structure of the present invention;

[0019] Figure 4 This is a partial three-dimensional structural diagram of the present invention;

[0020] Figure 5 This is a schematic diagram of the three-dimensional anatomical structure of part of this utility model.

[0021] The components include: 1. Storage tank; 101. Discharge pipe; 102. Observation window; 2. Feed pipe; 201. Filter plate; 3. Fixed cylinder; 301. Power shaft; 302. First connecting plate; 303. First connecting column; 304. Second connecting plate; 305. Third connecting column; 306. Connecting frame; 307. Slide rod; 308. First spring; 4. Slide cylinder; 401. Baffle; 402. Second spring; 5. Air pump; 501. Air extraction pipe; 502. Air inlet pipe; 6. Air storage tank; 601. Diaphragm; 602. Air replenishment pipe; 603. Air release pipe; 7. Heating device; 701. Air guide pipe; 702. Air outlet pipe; 8. Drive motor. Detailed Implementation

[0022] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 An oil recovery device includes a storage tank 1, a filter assembly inside the storage tank 1, and a heating assembly on the top of the storage tank 1.

[0024] The filter assembly includes a feed pipe 2 fixedly connected to the top of the outer surface of the storage box 1, a filter plate 201 fixedly connected inside the feed pipe 2, a fixed cylinder 3 fixedly connected to the inner wall of the feed pipe 2, a sliding cylinder 4 slidably embedded inside the fixed cylinder 3 in a vertical direction, and a second spring 402 wrapped around the outer surface of the sliding cylinder 4.

[0025] The heating assembly includes an air storage box 6 fixedly connected to the top of the outer surface of the storage box 1, and a diaphragm 601 is provided inside the air storage box 6. A heating device 7 is fixedly connected to the top of the outer surface of the storage box 1, and an air outlet pipe 702 is provided inside the heating device 7. The end of the air outlet pipe 702 away from the heating device 7 is located inside the feed pipe 2.

[0026] Using the above technical solution, the worker unscrews the threaded cover plate outside the feed pipe 2 and adds machine oil into the storage tank 1 through the feed pipe 2. The machine oil is filtered through the filter plate 201 and enters the interior of the storage tank 1. The drive motor 8 is turned on, and the output shaft of the drive motor 8 drives the power shaft 301 to rotate. The rotation of the power shaft 301 drives the slide rod 307 to move up and down reciprocally through the first connecting plate 302 and the second connecting plate 304. The up and down reciprocating movement of the slide rod 307 drives the slide cylinder 4 to move in the fixed cylinder 3 through the first spring 308. The slide cylinder 4 moves inside the fixed cylinder 3, and the slide cylinder 4 moves up and down reciprocally inside the fixed cylinder 3, thereby causing the slide cylinder 4 to strike the filter plate 201. Through the above technical solution, the filter plate 201 in the feed pipe 2 can directly intercept solid pollutants in the waste oil, such as metal shavings generated by engine wear, carbon particles generated by combustion, dust, sludge, etc., to prevent impurities from depositing in the storage tank 1, avoid bottom contamination and oil stratification, and ensure uniform purity of the oil in the tank. The striking of the slide cylinder 4 prevents the filter holes in the filter plate 201 from becoming clogged and maintains a stable feed flow.

[0027] With the above technical solution, after all the engine oil has been added, the threaded cover plate on the outside of the feed pipe 2 is screwed on, making the storage tank 1 a sealed cavity. The operator adds inert gas to the inside of the storage tank 6 beforehand through the air supply pipe 602. The vacuum pump 5 is then turned on, and it draws air through the vacuum pipe 501. The drawn gas is then transported to the inside of the storage tank 6 through the air inlet pipe 502. The inside of the storage tank 6 is divided into two sides by a diaphragm 601. When the vacuum pump 5 draws gas in, it simultaneously compresses the inert gas on the other side. The inert gas breaks through the pressure valve in the air guide pipe 701, thus entering the heating device 7. The heating device 7 heats the inert gas, and the heated inert gas is then transported to the inside of the feed pipe 2 through the air outlet pipe 702. After passing through the filter plate 201, it enters the storage tank 1. Internally, the above technical solution avoids the oxidation reaction of hydrocarbon compounds and additives in waste engine oil when they come into contact with oxygen, which would generate gums, asphaltenes, organic acids, etc., seriously affecting the regeneration quality. By extracting and injecting the same amount of inert gas, the negative or excessive positive pressure in storage tank 1 is avoided, and a slight positive pressure is maintained inside the tank. After the inert gas fills storage tank 1, the air can be discharged, inhibiting the oxidation reaction, reducing the rate of acid value increase of engine oil during storage, reducing the amount of gum formation, and extending the storage period of engine oil. At the same time, the high temperature of the inert gas in contact with the engine oil can raise the temperature of the engine oil, causing the free water and emulsified water in it to evaporate quickly. The evaporated water vapor is extracted by the air pump 5 to achieve auxiliary dehydration. When the inert gas is introduced from the feed pipe 2, it will generate an airflow scouring effect on the filter plate 201, blowing out fine impurities.

[0028] Specifically, a power shaft 301 is rotatably embedded inside the feed pipe 2, and the power shaft 301 is rotatably embedded inside the fixed cylinder 3. A first connecting plate 302 is fixedly connected to the outer surface of the power shaft 301, and a first connecting post 303 is rotatably embedded inside the first connecting plate 302. A second connecting plate 304 is rotatably sleeved on the outer surface of the first connecting post 303.

[0029] Through the above technical solution, the power shaft 301 rotates through the first connecting plate 302 and the second connecting plate 304, thereby driving the slide rod 307 to move up and down reciprocally.

[0030] Specifically, a third connecting post 305 is rotatably embedded inside the second connecting plate 304, a sliding rod 307 is slidably embedded inside the sliding cylinder 4 in a vertical direction, and a connecting frame 306 is fixedly connected to one side of the outer surface of the sliding rod 307. The third connecting post 305 is rotatably embedded inside the connecting frame 306. A first spring 308 is wound around the outer surface of the sliding rod 307, and a baffle 401 is fixedly connected to the outer surface of the sliding cylinder 4.

[0031] Through the above technical solution, the slide bar 307 moves up and down, thereby driving the slide cylinder 4 to move inside the fixed cylinder 3 via the first spring 308.

[0032] Specifically, a vacuum pump 5 is fixedly connected to the top of the outer surface of the storage box 1, and a vacuum pipe 501 is provided inside the vacuum pump 5. The end of the vacuum pipe 501 away from the vacuum pump 5 is located inside the storage box 1.

[0033] Through the above technical solution, the air pump 5 draws air through the air extraction pipe 501.

[0034] Specifically, the gas storage tank 6 is provided with an air inlet pipe 502, and the end of the air inlet pipe 502 away from the gas storage tank 6 is located inside the air pump 5. The gas storage tank 6 is provided with a gas guide pipe 701, and the end of the gas guide pipe 701 away from the gas storage tank 6 is located inside the heating device 7.

[0035] Through the above technical solution, the extracted gas is transported to the interior of the gas storage tank 6 through the air inlet pipe 502. The interior of the gas storage tank 6 is divided into two sides by the diaphragm 601. When the air pump 5 extracts gas and enters, it will simultaneously squeeze the inert gas on the other side. The inert gas breaks through the pressure valve set in the air guide pipe 701 and enters the interior of the heating device 7.

[0036] Specifically, a gas supply pipe 602 is fixedly connected to the top of the outer surface of the gas storage tank 6, and a gas release pipe 603 is fixedly connected to the outer surface of the gas storage tank 6.

[0037] Using the above technical solution, staff can add inert gas into the gas storage tank 6 in advance through the gas supply pipe 602.

[0038] Specifically, a drive motor 8 is fixedly connected to the outer surface of the feed pipe 2, and the output shaft of the drive motor 8 is fixedly connected to the power shaft 301. A discharge pipe 101 is provided inside the storage box 1, and an observation window 102 is provided on the outer surface of the storage box 1.

[0039] Through the above technical solution, the output shaft of the drive motor 8 drives the power shaft 301 to rotate, and the oil is discharged through the discharge pipe 101.

[0040] In use, the operator unscrews the threaded cover plate on the feed pipe 2 and adds machine oil into the storage tank 1 through the feed pipe 2. The machine oil is filtered through the filter plate 201 and then enters the storage tank 1. The drive motor 8 is turned on, and the output shaft of the drive motor 8 drives the power shaft 301 to rotate. The rotation of the power shaft 301 drives the slide rod 307 to move up and down reciprocally through the first connecting plate 302 and the second connecting plate 304. The up and down reciprocating movement of the slide rod 307 drives the slide cylinder 4 to move inside the fixed cylinder 3 through the first spring 308. The slide cylinder 4 moves up and down inside the fixed cylinder 3, causing it to strike the filter plate 201. Through the above technical solution, the filter plate 201 in the feed pipe 2 can directly intercept solid pollutants in the waste oil, such as metal shavings generated by engine wear, carbon particles generated by combustion, dust, sludge, etc., preventing impurities from accumulating in the storage tank 1, avoiding bottom contamination and oil stratification, ensuring uniform purity of the oil in the tank, and preventing the filter holes in the filter plate 201 from becoming clogged by the striking of the slide cylinder 4, thus maintaining a stable feed flow rate.

[0041] After all the engine oil has been added, screw on the threaded cover plate on the feed pipe 2 to make the storage tank 1 a sealed cavity. The operator adds inert gas to the storage tank 6 beforehand through the air supply pipe 602. The vacuum pump 5 is then turned on, and it draws air through the vacuum pipe 501. The drawn gas is then transported to the inside of the storage tank 6 through the air inlet pipe 502. The inside of the storage tank 6 is divided into two sides by a diaphragm 601. When the vacuum pump 5 draws gas in, it simultaneously compresses the inert gas on the other side. The inert gas breaks through the pressure valve in the air guide pipe 701 and enters the heating device 7. The heating device 7 heats the inert gas, and the heated inert gas is then transported to the feed pipe 2 through the air outlet pipe 702. After passing through the filter plate 201, it enters the storage tank 1. Through the above technical solution, the hydrocarbon compounds and additives in the waste engine oil are prevented from undergoing oxidation reactions when they come into contact with oxygen, generating gums, asphaltenes, organic acids, etc., which seriously affect the regeneration quality. By extracting and injecting the same amount of inert gas, the negative or excessive positive pressure in the storage tank 1 is avoided, and a slight positive pressure is maintained inside the tank. After the inert gas fills the storage tank 1, the air can be discharged, inhibiting the oxidation reaction, reducing the rate of acid value increase of the engine oil during storage, reducing the amount of gum formation, and extending the storage period of the engine oil. At the same time, the high-temperature inert gas in contact with the engine oil can raise the engine oil temperature, causing the free water and emulsified water in it to evaporate quickly. The evaporated water vapor is extracted by the air pump 5 to achieve auxiliary dehydration. When the inert gas is introduced from the feed pipe 2, it will generate an airflow scouring effect on the filter plate 201, blowing out fine impurities.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oil recovery device, comprising a storage tank (1), characterized in that: The storage box (1) is equipped with a filter assembly inside and a heating assembly on the top of the storage box (1); The filter assembly includes a feed pipe (2) fixedly connected to the top of the outer surface of the storage box (1), and a filter plate (201) fixedly connected inside the feed pipe (2). A fixed cylinder (3) is fixedly connected to the inner wall of the feed pipe (2), and a slide cylinder (4) is slidably embedded in the interior of the fixed cylinder (3) in a vertical direction. A second spring (402) is wound around the outer surface of the slide cylinder (4). The heating assembly includes a gas storage box (6) fixedly connected to the top of the outer surface of the storage box (1), and a diaphragm (601) is provided inside the gas storage box (6). A heating device (7) is fixedly connected to the top of the outer surface of the storage box (1), and an air outlet pipe (702) is provided inside the heating device (7). The end of the air outlet pipe (702) away from the heating device (7) is located inside the feed pipe (2).

2. The oil recovery device according to claim 1, characterized in that: The feed pipe (2) is rotatably embedded with a power shaft (301), and the power shaft (301) is rotatably embedded in the fixed cylinder (3). The outer surface of the power shaft (301) is fixedly connected with a first connecting plate (302), and the inner surface of the first connecting plate (302) is rotatably embedded with a first connecting post (303). The outer surface of the first connecting post (303) is rotatably sleeved with a second connecting plate (304).

3. The oil recovery device according to claim 2, characterized in that: The second connecting plate (304) has a third connecting post (305) rotatably embedded inside. The sliding cylinder (4) has a sliding rod (307) slidably embedded inside in a vertical direction. A connecting frame (306) is fixedly connected to one side of the outer surface of the sliding rod (307). The third connecting post (305) is rotatably embedded inside the connecting frame (306). A first spring (308) is wrapped around the outer surface of the sliding rod (307). A baffle (401) is fixedly connected to the outer surface of the sliding cylinder (4).

4. The oil recovery device according to claim 1, characterized in that: A vacuum pump (5) is fixedly connected to the top of the outer surface of the storage box (1), and a vacuum pipe (501) is provided inside the vacuum pump (5). The end of the vacuum pipe (501) away from the vacuum pump (5) is located inside the storage box (1).

5. The oil recovery device according to claim 1, characterized in that: The gas storage tank (6) is provided with an air inlet pipe (502), and the end of the air inlet pipe (502) away from the gas storage tank (6) is located inside the air pump (5). The gas storage tank (6) is provided with a gas guide pipe (701), and the end of the gas guide pipe (701) away from the gas storage tank (6) is located inside the heating device (7).

6. The oil recovery device according to claim 1, characterized in that: A gas supply pipe (602) is fixedly connected to the top of the outer surface of the gas storage tank (6), and a gas release pipe (603) is fixedly connected to the outer surface of the gas storage tank (6).

7. The oil recovery device according to claim 1, characterized in that: The outer surface of the feed pipe (2) is fixedly connected to a drive motor (8), and the output shaft of the drive motor (8) is fixedly connected to the power shaft (301). The storage box (1) is provided with a discharge pipe (101), and the outer surface of the storage box (1) is provided with an observation window (102).