Tank cleaning device for dirty oil tank

Abstract

The invention relates to the technical field of waste oil tank cleaning, and discloses a waste oil tank cleaning device which is characterized in that an inclined frame is arranged at one end of a supporting plate, the inclined frame is rotationally connected with a rotating shaft, a pulley is rotationally connected to the outer wall of the rotating shaft, a second cable passes through the pulley, and a lubricating assembly used for lubricating the second cable is installed on the outer wall of the rotating shaft. Through the arrangement of the lubricating structure, a second cable passes through a pulley and rubs with the pulley, so that the pulley and a rotating shaft are driven to rotate, in the rotating process of the rotating shaft, a second gear is driven to rotate, the second gear drives a first gear, and the first gear drives a rotating shaft and a blade plate to rotate; a small cavity is formed between each blade plate and the inner wall of the cavity and used for conveying lubricating oil in the oil storage box.

Description

Technical Field

[0001] The invention relates to the technical field of waste oil tank cleaning, in particular to a waste oil tank cleaning device. Background Art

[0002] The dirty oil tank cleaning device is a device specially used to clean the sediment in the dirty oil tank. It can improve the efficiency of tank cleaning, reduce the intensity of manual labor, and ensure the safety of operation. During the storage and transportation of crude oil in the tank, semi-solidified deposits with a height of 0.6-4 meters are deposited at the bottom of the tank, of which 98% are organic substances such as wax and asphalt; the remaining 2% are inorganic substances such as mud, rust, paint and water.

[0003] The application number is CN202121823741.0, which discloses a cleaning and storage device for an underground waste oil tank, an underground waste oil tank, wherein a composite cleaning pipe and a composite suction pipe are respectively sleeved inside the underground waste oil tank, and a steering infusion valve pipe is provided on one side of the top of the underground waste oil tank, and the interior of the steering infusion valve pipe includes a U-shaped curved pipe, and the U-shaped curved pipe is a U-shaped structure. The composite cleaning pipe, composite suction pipe, and steering infusion valve pipe assembly provided in the utility model are assembled into a composite tube-type multifunctional self-cleaning mechanism, and the first pumping mechanism, the second pumping mechanism, and the composite storage box provided are assembled into a two-way pumping storage mechanism. After the two are used in conjunction with each other, the cleaning waste liquid inside the waste oil tank body can be automatically removed while the inner wall of the waste oil tank body inside the underground waste oil tank is fully and automatically cleaned, thereby realizing a high degree of automated operation and improving cleaning efficiency and cleaning quality; In the above application, the cleaning solution is sprayed through a composite cleaning tube, and the dissolved impurities and cleaning liquid are extracted through a composite suction tube to improve the cleaning efficiency and cleaning quality. However, after the device has been used for a long time, residues may accumulate on the inner wall of the suction tube. Excessive accumulation may cause pipe blockage. In addition, the traditional mechanical cleaning technology utilizes a special liquid injection device installed on the tank top support column, and adopts the physical cleaning technology of "crude oil washing crude oil, fully enclosed, and mechanical automatic circulation" for cleaning. This cleaning process is actually the process of using good crude oil to dissolve the sediment at the bottom of the tank and transfer it to other storage tanks, which will cause waste of crude oil. Summary of the invention

[0004] The object of the present invention is to provide a dirty oil tank cleaning device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a dirty oil tank cleaning device, comprising a support plate, a cable assembly and a pipe body, wherein four fixing blocks are installed on the upper surface of the support plate, the cable assembly is installed on the upper surface of the support plate, a rectangular notch is provided on the support plate, and the pipe body is rotatably connected to the inner wall of the rectangular notch; The cable assembly comprises a drum, a second cable and a first cable, two support frames are installed on the upper surface of the support plate, the drum is rotatably connected between the two support frames, the first cable and the second cable are respectively wound around the outer wall of the drum, and a partition is arranged between the first cable and the second cable; An anchor block is fixedly connected to the outer wall of the tube body, one end of the second cable is connected to the anchor block, and a reamer assembly is installed on one side outer wall of the tube body; An inclined frame is provided at one end of the support plate, the inclined frame is rotatably connected to a rotating shaft, a pulley is rotatably connected to the outer wall of the rotating shaft, the second cable passes through the pulley, and a lubrication component for lubricating the second cable is installed on the outer wall of the rotating shaft; An output assembly is installed on the upper surface of the support plate, and the output assembly extends to the inner side of the tube body, and a bump structure is installed on the inner side of the tube body; A lifting assembly is provided at the bottom of the support plate; The purpose of the above arrangement is that the four fixed blocks arranged on the support plate cooperate with the crane to lift the support plate onto the lifting assembly, operate the cable assembly, rotate the drum, retract and release the first cable and the second cable, the second cable passes through the pulley and rubs against the pulley, thereby driving the pulley and the rotating shaft to rotate, thereby driving the lubrication assembly to operate and lubricate the second cable, the retraction and release of the second cable adjusts the rotation angle of the pipe body, the oil and dirt at the bottom of the oil tank are mixed into slurry through the reamer assembly, and then the oil and dirt are extracted and discharged through the output assembly; One end of the first cable cooperates with the bumping structure to pull it, and during the movement, the mud suction pipe in the output component is shaken to prevent the mud from clogging the inner wall of the mud suction pipe.

[0006] Further, the cable assembly also includes a first motor and a driving gear, the first motor is mounted on the upper surface of the support plate, the driving gear is mounted on the output shaft of the first motor, a driven gear is mounted on the rotating shaft of the drum, and the driving gear and the driven gear are meshed with each other; The purpose of the above arrangement is that the output shaft of the first motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate, and the driven gear drives the drum to rotate.

[0007] Further, the output assembly includes a second motor and an oil pump, the oil pump is mounted on the upper surface of the support plate, the second motor is mounted on the outer wall of the oil pump and drives the oil pump, the two ports of the oil pump are respectively connected to a connecting pipe and a mud discharge pipe, the outer wall of the connecting pipe is connected to a mud suction pipe, and the mud suction pipe extends to the bottom of the pipe body; The purpose of the above arrangement is that the output end of the second motor drives the oil pump to operate, and through the operation of the oil pump, the oil at the bottom of the connecting pipe and the mud suction pipe is sucked, passed through the oil pump, and then discharged through the mud discharge pipe.

[0008] Further, the reamer assembly includes a third motor, the third motor is mounted on the bottom outer wall of the tube body, the output end of the third motor passes through the tube body, and the output end of the third motor is connected to the reamer; The purpose of the above arrangement is that the output end of the third motor drives the reamer to rotate, so as to mix the oil sludge and water at the bottom of the tank into slurry.

[0009] Further, the lubrication assembly includes an oil storage box, a cavity and a first gear, the outer wall of the oil storage box is connected with an oil inlet pipe, the oil storage box is installed on the inner side of the inclined frame, the outer wall of the rotating shaft is installed with a second gear, and the first gear and the second gear are meshed with each other; The cavity is mounted on the inner wall of the oil storage box, the rotating shaft of the first gear penetrates the oil storage box and the cavity and extends to the inside of the cavity, and a plurality of blades are mounted on the outer wall of the rotating shaft; The purpose of the above arrangement is that the second cable passes through the pulley and rubs against the pulley, thereby driving the pulley and the rotating shaft to rotate. During the rotation of the rotating shaft, the second gear is driven to rotate, the second gear drives the first gear, and the first gear drives the rotating shaft and the blade to rotate.

[0010] Furthermore, a notch groove is provided on the outer wall of the cavity, the cavity is connected with the inside of the oil storage box through the notch groove, the bottom of the cavity is connected with an oil outlet pipe, and the oil outlet pipe passes through the oil storage box and extends to the outside of the second cable; The purpose of the above arrangement is to form a small cavity between each blade and the inner wall of the cavity to transport the lubricating oil inside the oil storage box.

[0011] Furthermore, the lifting assembly includes a flat plate, a lifting and folding frame, a driving motor and a screw rod, the two flat plates are respectively installed at the top and bottom of the lifting and folding frame, the driving motor and the screw rod are installed in the middle of the lifting and folding frame, and the output end of the driving motor is connected to the screw rod to drive the lifting and folding frame; The purpose of the above arrangement is to drive the screw rod to rotate by the driving motor, so as to drive the lifting and folding frame to rise and fall.

[0012] Further, the bump structure includes a ring body, a connecting rod and a protrusion, one end of the first cable is connected to the ring body, the connecting rod is installed on the outer wall of the ring body, and the connecting rod cooperates with the protrusion; The purpose of the above-mentioned arrangement is that one end of the first cable pulls the ring body. During the movement of the ring body, the connecting rod passes through the protrusion, the connecting rod rises and then falls, and repeats this cycle. A number of elliptical blocks are provided on the inner wall of the ring body, and are arranged in a ring on the inner wall of the ring body. The ring body bumps up and down, driving the elliptical blocks to move up and down, bumping and touching the inner wall of the sludge suction pipe, thereby reducing the accumulation of oil stains inside the sludge suction pipe.

[0013] The present invention has the following beneficial effects: (1) The present invention sets a bumping structure. One end of the first cable pulls the ring body. During the movement of the ring body, the connecting rod passes through the protrusion, and the connecting rod tilts upward and then falls down, repeating the cycle. A plurality of elliptical blocks are set on the inner wall of the ring body and are arranged in a ring on the inner wall of the ring body. The ring body bumps up and down, driving the elliptical blocks to move up and down, bumping and touching the inner wall of the sludge suction pipe, reducing the accumulation of oil and dirt inside the sludge suction pipe, thereby avoiding the problem of pipeline blockage.

[0014] (2) The present invention sets up a lubrication structure. The second cable passes through the pulley and rubs against the pulley, thereby driving the pulley and the rotating shaft to rotate. During the rotation of the rotating shaft, the second gear is driven to rotate. The second gear drives the first gear. The first gear drives the rotating shaft and the blade to rotate. A small cavity is formed between each blade and the inner wall of the cavity to transport the lubricating oil inside the oil storage box.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the lifting assembly of the present invention; Figure 3 It is a schematic diagram of the pipe structure of the present invention; Figure 4 For the present invention Figure 3 The structural diagram at A in the middle; Figure 5is a schematic diagram of a cable assembly of the present invention; Figure 6 It is a schematic diagram of the output component of the present invention; Figure 7 It is a schematic diagram of the lubrication assembly of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the structure in B; In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1, support plate; 101, fixed block; 2, cable assembly; 201, first motor; 202, driving gear; 203, driven gear; 204, drum; 205, first cable; 206, second cable; 3, output assembly; 300, oil pump; 301, second motor; 302, connecting pipe; 303, mud discharge pipe; 304, mud suction pipe; 4, pipe body; 401, anchor block; 402, protrusion; 5, reamer assembly; 501, third motor; 502, reamer; 6, lubrication assembly; 601, cavity; 6010, notch groove; 602, first gear; 603, second gear; 604, oil outlet pipe; 605, blade; 7, inclined frame; 8, lifting assembly; 9, rotating shaft; 10, ring body; 1001, connecting rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figure 1 - Figure 8 As shown, the present invention is a dirty oil tank cleaning device, comprising a support plate 1, a cable assembly 2 and a pipe body 4, four fixing blocks 101 are installed on the upper surface of the support plate 1, the cable assembly 2 is installed on the upper surface of the support plate 1, a rectangular notch is provided on the support plate 1, and the pipe body 4 is rotatably connected to the inner wall of the rectangular notch; The cable assembly 2 includes a drum 204, a second cable 206 and a first cable 205. Two support frames are installed on the upper surface of the support plate 1. The drum 204 is rotatably connected between the two support frames. The first cable 205 and the second cable 206 are respectively wound on the outer wall of the drum 204. A partition is provided between the first cable 205 and the second cable 206. An anchor block 401 is fixedly connected to the outer wall of the tube body 4, one end of the second cable 206 is connected to the anchor block 401, and a reamer assembly 5 is installed on one side of the outer wall of the tube body 4; An inclined frame 7 is provided at one end of the support plate 1, and the inclined frame 7 is rotatably connected to a rotating shaft 9, and a pulley is rotatably connected to the outer wall of the rotating shaft 9, and the second cable 206 passes through the pulley. A lubrication component 6 for lubricating the second cable 206 is installed on the outer wall of the rotating shaft 9; An output assembly 3 is installed on the upper surface of the support plate 1, and the output assembly 3 extends to the inner side of the tube body 4, and a bump structure is installed on the inner side of the tube body 4; A lifting assembly 8 is provided at the bottom of the support plate 1; In this embodiment, the purpose of the above arrangement is that the four fixing blocks 101 arranged on the support plate 1 cooperate with the crane to hoist the support plate 1 onto the lifting assembly 8, operate the cable assembly 2, rotate the drum 204, retract and release the first cable 205 and the second cable 206, the second cable 206 passes through the pulley and rubs against the pulley, thereby driving the pulley and the rotating shaft 9 to rotate, thereby driving the lubrication assembly 6 to operate, lubricate the second cable 206, the retraction and release of the second cable 206 adjusts the rotation angle of the tube body 4, and the oil and dirt at the bottom of the oil tank are mixed into slurry through the reamer assembly 5, and then the oil and dirt are extracted and discharged through the output assembly 3; One end of the first cable 205 cooperates with the bumping structure to pull it, and during the movement, the mud suction pipe 304 in the output component 3 is shaken to prevent the mud from clogging the inner wall of the mud suction pipe 304.

[0020] As an implementation method, Figure 5 As shown, further: The cable assembly 2 further includes a first motor 201 and a driving gear 202. The first motor 201 is mounted on the upper surface of the support plate 1. The driving gear 202 is mounted on the output shaft of the first motor 201. A driven gear 203 is mounted on the rotating shaft of the drum 204. The driving gear 202 and the driven gear 203 are meshed with each other. In this embodiment, the purpose of the above arrangement is that the output shaft of the first motor 201 drives the driving gear 202 to rotate, the driving gear 202 drives the driven gear 203 to rotate, and the driven gear 203 drives the roller 204 to rotate.

[0021] As an implementation method, Figure 6 As shown, further: The output assembly 3 includes a second motor 301 and an oil pump 300. The oil pump 300 is mounted on the upper surface of the support plate 1. The second motor 301 is mounted on the outer wall of the oil pump 300 and drives the oil pump 300. The two ports of the oil pump 300 are respectively connected with a connecting pipe 302 and a mud discharge pipe 303. The outer wall of the connecting pipe 302 is connected with a mud suction pipe 304, and the mud suction pipe 304 extends to the bottom of the pipe body 4. In this embodiment, the purpose of the above-mentioned setting is that the output end of the second motor 301 drives the oil pump 300 to operate, and through the operation of the oil pump 300, the oil and dirt at the bottom of the connecting pipe 302 and the mud suction pipe 304 are sucked up, passed through the oil pump, and then discharged through the mud discharge pipe 303.

[0022] As an implementation method, Figure 3 As shown, further: The reamer assembly 5 includes a third motor 501, which is mounted on the bottom outer wall of the tube body 4, and the output end of the third motor 501 passes through the tube body 4, and the output end of the third motor 501 is connected to the reamer 502; In this embodiment, the purpose of the above arrangement is that the output end of the third motor 501 drives the reamer 502 to rotate, so as to mix the oily sludge at the bottom of the tank with water into slurry.

[0023] As an implementation method, Figure 7 As shown, further: The lubrication assembly 6 includes an oil storage box, a cavity 601 and a first gear 602. The outer wall of the oil storage box is connected with an oil inlet pipe. The oil storage box is installed on the inner side of the inclined frame 7. The outer wall of the rotating shaft 9 is installed with a second gear 603. The first gear 602 and the second gear 603 are meshed with each other. The cavity 601 is installed on the inner wall of the oil storage box, the rotating shaft of the first gear 602 passes through the oil storage box and the cavity 601 and extends to the inside of the cavity 601, and a plurality of blades 605 are installed on the outer wall of the rotating shaft; In this embodiment, the purpose of the above-mentioned setting is that the second cable 206 passes through the pulley and rubs against the pulley, thereby driving the pulley and the rotating shaft 9 to rotate. During the rotation of the rotating shaft 9, the second gear 603 is driven to rotate, and the second gear 603 drives the first gear 602, and the first gear 602 drives the rotating shaft and the blade to rotate.

[0024] As an implementation method, Figure 8 As shown, further: A notch groove 6010 is provided on the outer wall of the cavity 601, and the cavity 601 is connected with the inside of the oil storage box through the notch groove 6010. The bottom of the cavity 601 is connected with an oil outlet pipe 604, and the oil outlet pipe 604 passes through the oil storage box and extends to the outside of the second cable 206; In this embodiment, the purpose of the above arrangement is to form a small cavity between each blade 605 and the inner wall of the cavity 601 to transport the lubricating oil inside the oil storage box.

[0025] As an implementation method, Figure 2 As shown, further: The lifting assembly 8 includes a flat plate, a lifting and folding frame, a driving motor and a screw rod. The two flat plates are respectively installed at the top and bottom of the lifting and folding frame. The driving motor and the screw rod are installed in the middle of the lifting and folding frame. The output end of the driving motor is connected to the screw rod and drives the lifting and folding frame. In this embodiment, the purpose of the above arrangement is to drive the screw rod to rotate by the driving motor, so as to drive the lifting and folding frame to rise and fall.

[0026] As an implementation method, Figure 4 As shown, further: The bump structure includes a ring body 10, a connecting rod 1001, and a protrusion 402. One end of the first cable 205 is connected to the ring body 10. The connecting rod 1001 is installed on the outer wall of the ring body 10. The connecting rod 1001 and the protrusion 402 cooperate with each other. In this embodiment, the purpose of the above-mentioned arrangement is that one end of the first cable 205 pulls the ring body 10. During the movement of the ring body 10, the connecting rod 1001 passes through the protrusion 402, and the connecting rod 1001 rises and then falls, repeating the cycle. A plurality of elliptical blocks are arranged on the inner wall of the ring body 10 in a ring shape on the inner wall of the ring body 10. The ring body 10 bumps up and down, driving the elliptical blocks to move up and down, bumping and touching the inner wall of the mud suction pipe 304, thereby reducing the accumulation of oil stains inside the mud suction pipe 304.

[0027] Working principle: The four fixing blocks 101 arranged on the support plate 1 cooperate with the crane to lift the support plate 1 onto the lifting assembly 8, and the driving motor drives the screw rod to rotate, so as to drive the lifting and folding frame to lift and lower the height of the support plate 1; The output end of the third motor 501 drives the reamer 502 to rotate, and mixes the oil sludge at the bottom of the tank with water to form a slurry. The output end of the second motor 301 drives the oil pump 300 to operate. Through the operation of the oil pump 300, the oil at the bottom of the connecting pipe 302 and the mud suction pipe 304 is sucked, passed through the oil pump, and then discharged through the mud discharge pipe 303; The output shaft of the first motor 201 drives the driving gear 202 to rotate, the driving gear 202 drives the driven gear 203 to rotate, the driven gear 203 drives the roller 204 to rotate, the roller 204 rotates, and the first cable 205 and the second cable 206 are retracted and released; The second cable 206 passes through the pulley and rubs against the pulley, thereby driving the pulley and the rotating shaft 9 to rotate. During the rotation of the rotating shaft 9, the second gear 603 is driven to rotate, and the second gear 603 drives the first gear 602, and the first gear 602 drives the rotating shaft and the blade to rotate. A small cavity is formed between each blade 605 and the inner wall of the cavity 601 to transport the lubricating oil inside the oil storage box; One end of the first cable 205 pulls the ring body 10. During the movement of the ring body 10, the connecting rod 1001 passes through the protrusion 402, and the connecting rod 1001 rises and then falls, repeating the cycle. A number of elliptical blocks are provided on the inner wall of the ring body 10, which are arranged in a ring on the inner wall of the ring body 10. The ring body 10 bumps up and down, driving the elliptical blocks to move up and down, bumping and touching the inner wall of the mud suction pipe 304, thereby reducing the accumulation of oil stains inside the mud suction pipe 304.

[0028] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A dirty oil tank cleaning device, comprising a support plate (1), a cable assembly (2) and a pipe body (4), characterized in that: Four fixing blocks (101) are installed on the upper surface of the support plate (1), the cable assembly (2) is installed on the upper surface of the support plate (1), a rectangular notch is provided on the support plate (1), and the tube body (4) is rotatably connected to the inner wall of the rectangular notch; The cable assembly (2) comprises a drum (204), a second cable (206) and a first cable (205); two support frames are installed on the upper surface of the support plate (1); the drum (204) is rotatably connected between the two support frames; the first cable (205) and the second cable (206) are respectively wound around the outer wall of the drum (204); and a partition is provided between the first cable (205) and the second cable (206); An anchor block (401) is fixedly connected to the outer wall of the tube body (4), one end of the second cable (206) is connected to the anchor block (401), and a reamer assembly (5) is installed on the outer wall of one end of the tube body (4); An inclined frame (7) is provided at one end of the support plate (1), the inclined frame (7) is rotatably connected to a rotating shaft (9), a pulley is rotatably connected to the outer wall of the rotating shaft (9), the second cable (206) passes through the pulley, and a lubrication component (6) for lubricating the second cable (206) is installed on the outer wall of the rotating shaft (9); An output assembly (3) is installed on the upper surface of the support plate (1), the output assembly (3) extends to the inner side of the tube body (4), and a bump structure is installed on the inner side of the tube body (4); A lifting assembly (8) is provided at the bottom of the support plate (1).

2. A dirty oil tank cleaning device according to claim 1, characterized in that: The cable assembly (2) further comprises a first motor (201) and a driving gear (202); the first motor (201) is mounted on the upper surface of the support plate (1); the driving gear (202) is mounted on the output shaft of the first motor (201); a driven gear (203) is mounted on the rotating shaft of the roller (204); the driving gear (202) and the driven gear (203) are meshed with each other.

3. A dirty oil tank cleaning device according to claim 2, characterized in that: The output assembly (3) comprises a second motor (301) and an oil pump (300); the oil pump (300) is mounted on the upper surface of the support plate (1); the second motor (301) is mounted on the outer wall of the oil pump (300) and drives the oil pump (300); two ports of the oil pump (300) are respectively connected to a connecting pipe (302) and a mud discharge pipe (303); the outer wall of the connecting pipe (302) is connected to a mud suction pipe (304); and the mud suction pipe (304) extends to the bottom of the pipe body (4).

4. A dirty oil tank cleaning device according to claim 3, characterized in that: The reamer assembly (5) comprises a third motor (501), the third motor (501) being mounted on the bottom outer wall of the tube body (4), the output end of the third motor (501) passing through the tube body (4), and the output end of the third motor (501) being connected to the reamer (502).

5. A dirty oil tank cleaning device according to claim 4, characterized in that: The lubrication assembly (6) comprises an oil storage box, a cavity (601) and a first gear (602); an outer wall of the oil storage box is connected to an oil inlet pipe; the oil storage box is mounted on the inner side of the inclined frame (7); a second gear (603) is mounted on the outer wall of the rotating shaft (9); the first gear (602) and the second gear (603) are meshed with each other; The cavity (601) is mounted on the inner wall of the oil storage box, the rotating shaft of the first gear (602) passes through the oil storage box and the cavity (601) and extends to the inside of the cavity (601), and a plurality of blades (605) are mounted on the outer wall of the rotating shaft.

6. A dirty oil tank cleaning device according to claim 5, characterized in that: A notch groove (6010) is provided on the outer wall of the cavity (601), and the cavity (601) is connected to the interior of the oil storage box through the notch groove (6010). The bottom of the cavity (601) is connected to an oil outlet pipe (604), and the oil outlet pipe (604) passes through the oil storage box and extends to the outside of the second cable (206).

7. A dirty oil tank cleaning device according to claim 6, characterized in that: The lifting assembly (8) comprises a flat plate, a lifting and folding frame, a driving motor and a screw rod, wherein the two flat plates are respectively mounted on the top and bottom of the lifting and folding frame, and the driving motor and the screw rod are mounted in the middle of the lifting and folding frame, and the output end of the driving motor is connected to the screw rod and drives the lifting and folding frame.

8. A dirty oil tank cleaning device according to claim 7, characterized in that: The bump structure comprises a ring body (10), a connecting rod (1001) and a protrusion (402); one end of the first cable (205) is connected to the ring body (10); the connecting rod (1001) is mounted on the outer wall of the ring body (10); the connecting rod (1001) and the protrusion (402) cooperate with each other; a plurality of elliptical blocks are provided on the inner wall of the ring body (10) and are arranged in a ring shape on the inner wall of the ring body (10).

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