A device for removing rust from inner wall of ship pipeline

Abstract

The invention relates to the technical field of pipeline rust removal, and in particular to a device for removing rust from the inner wall of a ship pipeline, comprising a bottom plate, a grinding device and a rotating column, wherein the grinding device is located outside the rotating column, the bottom plate is located behind the rotating column, the rotating column comprises a water tank, a second cylinder and a third cylinder, the rear center of the water tank is fixedly connected to the front side of the second cylinder, the rear center of the second cylinder is fixedly connected to the front side of the third cylinder, a first groove is arranged at the rear side of the third cylinder, and a water inlet is arranged on the surface of the water tank, the grinding device comprises a first rotating ring, a second rotating ring, a first telescopic device, a second telescopic device and a third telescopic device, and by arranging the grinding device, the first telescopic device, the second telescopic device and the third telescopic device can be adjusted to expand and contract, so that the inside of the ship pipeline can be polished more conveniently, quickly, efficiently and precisely.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline rust removal, in particular to a device for removing rust from the inner wall of a ship pipeline. Background Art

[0002] The most common method for shipyards to remove rust from ship pipes is manual rust removal. The main tools for removing rust from ship pipes are hammers, shovels, scrapers, wire brushes, etc. The following problems often occur during manual rust removal:

[0003] 1. Manual rust removal is labor-intensive and inefficient, requiring more manpower, taking a long time, and producing a lot of dust. It is not only bad for the environment but is also likely to be harmful to human health.

[0004] 2. Only small-scale rust removal can be carried out, and the rust removal effect is uneven, which is greatly affected by the workers' proficiency and carefulness, and has a high degree of uncertainty. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a device for removing rust from the inner wall of a ship pipeline.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a device for removing rust from the inner wall of a ship pipeline, comprising a bottom plate, a telescopic device and a rotating column, the telescopic device is located outside the rotating column, the bottom plate is located behind the rotating column, the rotating column comprises a water tank, a No. 2 cylinder and a No. 3 cylinder, the rear center of the water tank is fixedly connected to the front side of the No. 2 cylinder, the rear center of the No. 2 cylinder is fixedly connected to the front side of the No. 3 cylinder, a No. 1 groove is provided on the rear side of the No. 3 cylinder, a water inlet is provided on the surface of the water tank, and the rotating column is driven by a motor to rotate, so that the rust removal liquid in the water tank in the rotating column is more evenly sprinkled on the inside of the ship pipe.

[0007] As a preferred technical solution of the present invention, the telescopic device includes a No. 1 rotating ring, a No. 2 rotating ring, a No. 1 telescopic device, a No. 2 telescopic device and a No. 3 telescopic device. The No. 2 telescopic device is arranged on the top of the No. 1 rotating ring and the No. 2 rotating ring, the No. 1 telescopic device is arranged on the right side of the No. 1 rotating ring and the No. 2 rotating ring, and the No. 3 telescopic device is arranged on the left side of the No. 1 rotating ring and the No. 2 rotating ring. The No. 1 rotating ring includes a No. 1 ring, a No. 1 connecting mechanism, a No. 2 connecting mechanism and a No. 3 connecting mechanism. The No. 1 connecting mechanism, the No. 2 connecting mechanism and the No. 3 connecting mechanism are respectively installed on the top and both sides of the No. 1 ring. The No. 1 ring is provided with a thread inside. The No. 2 rotating ring has the same structure as the No. 1 rotating ring. The No. 2 rotating ring has a thread inside. The moving ring includes a No. 1 ring, a No. 1 connecting mechanism, a No. 2 connecting mechanism and a No. 3 connecting mechanism. The inner side of the No. 2 rotating ring is fixedly connected to the front side of the No. 2 cylinder. The outer side of the No. 3 cylinder is provided with a threaded column. The No. 1 rotating ring is sleeved on the outer side of the No. 3 cylinder. The No. 1 connecting mechanism includes a No. 1 plate, a No. 2 plate and a first bolt. A No. 2 hole is opened in the middle of the No. 1 plate, a No. 3 hole is opened in the middle of the No. 2 plate, and the No. 2 hole and the No. 3 hole are fixedly connected by the first bolt. The bottoms of the No. 1 plate and the No. 2 plate are fixedly connected to the top of the No. 1 ring. The No. 2 connecting mechanism and the No. 3 connecting mechanism have the same structure as the No. 1 connecting mechanism. The bottom of the No. 2 connecting mechanism is fixedly connected to the left surface of the No. 1 ring.The bottom of the No. 3 connecting mechanism is fixedly connected to the right surface of the No. 1 ring, the No. 2 rotating ring is consistent with the No. 1 rotating ring in structure, the inner side of the No. 2 rotating ring is fixedly connected to the front side of the No. 2 cylinder, the threaded column includes a connecting cylinder and a No. 2 bearing, the outer ring of the No. 2 bearing is fixedly connected to the connecting cylinder, the inner ring of the No. 2 bearing is fixedly connected to the No. 3 cylinder, and the connecting cylinder is threadedly connected to the No. 1 ring. The No. 1 telescopic device includes a grinding plate, a T-shaped plate, a No. 1 inclined plate, a No. 2 inclined plate, a No. 3 inclined plate, a No. 4 inclined plate and a second bolt. A No. 11 hole is opened at a right angle on the upper front left side of the No. 3 inclined plate, a No. 9 hole is opened at a right angle on the lower rear left side of the No. 3 inclined plate, and a No. 10 hole is opened at the center of the left side of the No. 3 inclined plate. The No. 4 inclined plate has the same structure as the No. 3 inclined plate. The No. 9 holes on the No. 4 inclined plate and the No. 3 inclined plate are both sleeved on the first bolt of the No. 1 rotating ring, a No. 7 hole is opened at a right angle on the lower front left side of the No. 1 inclined plate, a No. 6 hole is opened at a right angle on the upper rear left side of the No. 1 inclined plate, and the No. 1 inclined plate A No. 8 hole is opened at the center of the left side. The No. 2 inclined plate has the same structure as the No. 1 inclined plate. The two No. 7 holes are connected with the first bolt in the No. 2 rotating ring. The two No. 8 holes of the No. 2 inclined plate and the No. 1 inclined plate are aligned with the two No. 10 holes of the No. 3 inclined plate and the No. 4 inclined plate. The two No. 8 holes and the two No. 10 holes are interspersed with the second bolt. The No. 4 hole and the No. 5 hole are opened at both ends below the T-shaped plate. The No. 4 hole and the No. 5 hole are in a straight line. The top of the T-shaped plate is fixedly connected to the bottom of the grinding plate. The No. 5 hole and the two No. 11 holes are inserted with the second bolt. The No. 4 hole and the two No. 6 holes are interspersed with the second bolt for fixed connection. The No. 2 telescopic device and the No. 3 telescopic device have the same structure as the No. 1 telescopic device. Because the No. 2 rotating ring is fixedly connected to the No. 2 cylinder, and the No. 1 rotating ring is threadedly connected to the threaded column, when the rotating column rotates, the No. 2 bearing on the threaded column will rotate the entire threaded column, so that the entire grinding device can be rotated and polished.

[0008] As a preferred technical solution of the present invention, the top of the bottom plate includes a motor, a No. 1 support plate, a rotating device and a No. 2 support plate. The top surface of the No. 2 support plate is fixedly connected to the bottom surface of the No. 1 support plate. The top surface of the No. 1 support plate is fixedly connected to the bottom surface of the motor. The output shaft of the motor is clamped with the No. 1 groove. The rotating device includes a chain, a large rotating wheel and a small rotating wheel. The middle of the large rotating wheel is fixedly connected to the outer side of the hollow column. The hollow column is sleeved with the rear side of the connecting cylinder. The right side of the chain is meshed with the large rotating wheel, and the left side of the chain is meshed with the small rotating wheel. A No. 1 hole is opened in the center of the small rotating wheel. A No. 1 bearing is arranged inside the No. 1 hole. The No. 1 hole is connected to the outer side of the No. 1 bearing. Make a fixed connection, the outer side of the right side of the No. 1 bearing is fixedly connected to the rotating handle, the inner side of the left side of the No. 1 bearing is fixedly connected to the horizontal axis, the bottom of the connecting column is fixedly connected to the upper left corner of the top surface of the No. 2 support plate, and the upper rear side of the connecting column is fixedly connected to the horizontal axis. When the threaded column rotates, it drives the large gear to rotate, and the large gear drives the small gear to rotate through the chain, so that the rotating handle also rotates. When the rotating handle is held, the small gear stops rotating, so that the large gear also stops rotating, and finally the threaded column stops rotating, so that the No. 1 rotating ring moves forward, and the No. 1 telescopic device, No. 2 telescopic device and No. 3 telescopic device complete the expansion.

[0009] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0010] 1. By setting the grinding device, the No. 1, No. 2 and No. 3 telescopic devices can be adjusted to expand and contract, so that the inside of the ship tube can be ground more conveniently, quickly, efficiently and finely.

[0011] 2. By setting a rotating column, when the motor drives the rotating column, the rust remover in the water tank can be more evenly spread over the inside of the ship pipe, and at the same time, the grinding device can be driven to rotate to grind the inside of the ship pipe, making it easier to remove the rust on the ship pipe without sparks caused by friction, which may cause safety hazards.

[0012] 3. By setting up a rotating device, when the rotating column rotates and drives the rotating device to rotate, you can hold the rotating handle to stop the small gear from rotating. The small gear stops rotating, which causes the large gear to stop rotating. Because the large gear is fixedly connected to the threaded column, the threaded column also stops rotating. However, the No. 1 rotating ring in the grinding device does not stop moving, but moves forward, thereby expanding the grinding device. The grinding device slowly expands to grind the rust on the ship pipe more cleanly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 For the present invention Figure 1 Schematic diagram of the structure of the midsole plate;

[0015] Figure 3 For the present invention Figure 2 Schematic diagram of the local structure of A;

[0016] Figure 4 For the present invention Figure 2 A schematic diagram of the structure of the rotating device;

[0017] Figure 5 For the present invention Figure 1 Schematic diagram of the structure of the middle rotating column;

[0018] Figure 6 For the present invention Figure 5 Schematic diagram of the structure of the No. 1 cylinder;

[0019] Figure 7 For the present invention Figure 1 A schematic diagram of the structure of the middle telescopic device;

[0020] Figure 8 For the present invention Figure 7 Structural diagram of the middle No. 1 telescopic device;

[0021] Fig. 9 For the present invention Figure 7 Schematic diagram of the structure of the rotating ring No. 1;

[0022] Fig.10 For the present invention Figure 7 Structural diagram of the No. 1 connecting mechanism;

[0023] Fig.11 For the present invention Figure 2 Schematic diagram of the structure of the middle threaded column;

[0024] Fig.12 For the present invention Figure 8 Schematic diagram of the structure of the middle T-shaped plate.

[0025] Among them: 1. bottom plate; 2. telescopic device; 3. rotating column; 10. motor; 11. No. 1 support plate; 12. rotating device; 13. threaded column; 15. No. 2 support plate; 16. connecting column; 160. horizontal axis; 121. No. 1 bearing; 122. rotating handle; 125. No. 1 hole; 123. chain; 124. hollow column; 120. large rotating wheel; 126. small rotating wheel; 20. No. 1 telescopic device; 21. No. 2 telescopic device; 22. No. 3 telescopic device; 23. No. 1 rotating ring; 24. No. 2 rotating ring; 25. second bolt; 231. No. 1 connecting mechanism; 233. No. 2 connecting mechanism; 232. No. 3 connecting mechanism; 234, first bolt; 230, No. 1 ring; 3210, No. 1 plate; 3212, No. 2 plate; 3211, No. 2 hole; 3213, No. 3 hole; 140, thread; 141, No. 2 bearing; 30, No. 1 cylinder; 300, water inlet; 301, water tank; 302, No. 2 cylinder; 303, No. 3 cylinder; 304, No. 1 groove; 210, polishing plate; 211, T-shaped plate; 2110, No. 4 hole; 2111, No. 5 hole; 212, No. 1 inclined plate; 215, No. 2 inclined plate; 2120, No. 6 hole; 2122, No. 7 hole; 2121, No. 8 hole; 213, No. 3 inclined plate; 214, No. 4 inclined plate; 2130, No. 9 hole; 2131, No. 10 hole; 3132, No. 11 hole. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0027] Embodiment: Figure 1 , Figure 5 , Figure 6 and Fig.11 A device for removing rust from the inner wall of a ship pipeline is shown, comprising a bottom plate 1, a telescopic device 2 and a rotating column 3, wherein the telescopic device 2 is located outside the rotating column 3, and the bottom plate 1 is located behind the rotating column 3. The rotating column 3 comprises a water tank 301, a second cylinder 302 and a third cylinder 303. The water tank 301 is in the shape of a cylindrical bucket, and is made of stainless steel. The center of the rear side of the water tank 301 is fixedly connected to the front side of the second cylinder 302, and the center of the rear side of the second cylinder 302 is fixedly connected to the front side of the third cylinder 303. A first groove 304 is provided on the rear side of the third cylinder 303, and a water inlet 300 is provided on the surface of the water tank 301.

[0028] See also Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.12The telescopic device 2 includes a No. 1 rotating ring 23, a No. 2 rotating ring 24, a No. 1 telescopic device 20, a No. 2 telescopic device 21 and a No. 3 telescopic device 22. The No. 1 rotating ring 23 and the No. 2 rotating ring 24 are provided with the No. 2 telescopic device 21 on the top, the No. 1 rotating ring 23 and the No. 2 rotating ring 24 are provided with the No. 1 telescopic device 20 on the right side, and the No. 3 telescopic device 22 is provided on the left side of the No. 1 rotating ring 23 and the No. 2 rotating ring 24. The No. 1 rotating ring 23 includes a No. 1 ring 230, a No. 1 connecting mechanism 231, a No. 2 connecting mechanism 233 and a No. 3 connecting mechanism 232. The No. 1 connecting mechanism 231, the No. 2 connecting mechanism 233 and the No. 3 connecting mechanism 232 are respectively installed on the top and both sides of the No. 1 ring 230. The second rotating ring 24 is provided with a thread, and the structure of the No. 1 rotating ring 23 is consistent with that of the No. 1 rotating ring 23. The No. 2 rotating ring 24 includes a No. 1 ring 230, a No. 1 connecting mechanism 231, a No. 2 connecting mechanism 233 and a No. 3 connecting mechanism 232. The inner side of the No. 2 rotating ring 24 is fixedly connected to the front side of the No. 2 cylinder 302. The outer side of the No. 3 cylinder 303 is provided with a threaded column 13, a No. 1 rotating ring 23, and the No. 1 rotating ring 23 is sleeved on the outer side of the No. 3 cylinder 303. The No. 1 connecting mechanism 231 includes a No. 1 plate 3210, a No. 2 plate 3212 and a first bolt 234. A No. 2 hole 3211 is opened in the middle of the No. 1 plate 3210, a No. 3 hole 3213 is opened in the middle of the No. 2 plate 3212, and the No. 2 hole 3211 and the No. 3 hole 3213 are connected by a first screw The bolt 234 is fixedly connected, the bottom of the No. 1 plate 3210 and the No. 2 plate 3212 are fixedly connected to the top of the No. 1 ring 230, the No. 2 connecting mechanism 233 and the No. 3 connecting mechanism 232 are consistent with the No. 1 connecting mechanism 231, the No. 2 connecting mechanism 233 includes the No. 1 plate 3210, the No. 2 plate 3212 and the first bolt 234, the No. 1 plate 3210 has a No. 2 hole 3211 in the middle, the No. 2 plate 3212 has a No. 3 hole 3213 in the middle, the No. 2 hole 3211 and the No. 3 hole 3213 are fixedly connected using the first bolt 234, the No. 1 plate 3210 and the No. 2 plate 3212 bottom are fixedly connected to the left side of the No. 1 ring 230, the No. 3 connecting mechanism 232 includes the No. 1 plate 3210, the No. 2 plate 3212 and the No. 3 hole 3213 212 and the first bolt 234, a second hole 3211 is opened in the middle of the No. 1 plate 3210, a third hole 3213 is opened in the middle of the No. 2 plate 3212, the second hole 3211 and the third hole 3213 are fixedly connected by the first bolt 234, the bottom of the No. 1 plate 3210 and the No. 2 plate 3212 are fixedly connected to the right side of the No. 1 ring 230, the bottom of the No. 2 connecting mechanism 233 is fixedly connected to the left surface of the No. 1 ring 230, the bottom of the No. 3 connecting mechanism 232 is fixedly connected to the right surface of the No. 1 ring 230, the No. 2 rotating ring 24 has the same structure as the No. 1 rotating ring 23, the inner side of the No. 2 rotating ring 24 is fixedly connected to the front side of the No. 2 cylinder 302, and the threaded column 13 includes a connecting cylinder 140 and a No. 2 bearing 141.

[0029] The outer ring of the No. 2 bearing 141 is fixedly connected to the connecting cylinder 140, the inner ring of the No. 2 bearing 141 is fixedly connected to the No. 3 cylinder 303, the connecting cylinder 140 is threadedly connected to the No. 1 ring 230, the No. 1 telescopic device 20 includes a grinding plate 210, a T-shaped plate 211, a No. 1 inclined plate 212, a No. 2 inclined plate 215, a No. 3 inclined plate 213, a No. 4 inclined plate 214 and a second bolt 25, the T-shaped plate 211 is T-shaped, the No. 11 hole 3132 is opened at a right angle on the upper front left side of the No. 3 inclined plate 213, and the No. 9 hole 2130 is opened at a right angle on the lower rear left side of the No. 3 inclined plate 213, The left center of the third inclined plate 213 has a No. 10 hole 2131, the structure of the fourth inclined plate 214 is consistent with that of the third inclined plate 213, the No. 9 holes 2130 on the fourth inclined plate 214 and the third inclined plate 213 are both sleeved on the first bolt 234 of the first rotating ring 23, the No. 7 hole 2122 is opened at a right angle at the front lower left side of the No. 1 inclined plate 212, the No. 6 hole 2120 is opened at a right angle at the rear upper left side of the No. 1 inclined plate 212, the No. 8 hole 2121 is opened at the center of the left side of the No. 1 inclined plate 212, the No. 2 inclined plate 215 has the same structure as that of the first inclined plate 212, and the two No. 7 holes 2122 are connected to the first bolt 234 in the second rotating ring 24. The bolt 234 is sleeved, the two No. 8 holes 2121 of the No. 2 inclined plate 215 and the No. 1 inclined plate 212 are aligned with the two No. 10 holes 2131 of the No. 3 inclined plate 213 and the No. 4 inclined plate 214, and the second bolt 25 is inserted into the two No. 8 holes 2121 and the two No. 10 holes 2131. The two ends of the lower side of the T-shaped plate 211 are respectively provided with a No. 4 hole 2110 and a No. 5 hole 2111, and the No. 4 hole 2110 and the No. 5 hole 2111 are in a straight line. The top of the T-shaped plate 211 is fixedly connected to the bottom of the grinding plate 210, and the No. 5 hole 2111 and the two No. 11 holes 3132 are inserted with the second bolt 25, the second bolt 25 is interspersed with the fourth hole 2110 and the two sixth holes 2120 for fixed connection, the second telescopic device 20 includes a grinding plate 210, a T-shaped plate 211, a first inclined plate 212, a second inclined plate 215, a third inclined plate 213, a fourth inclined plate 214 and a second bolt 25, the third telescopic device 20 includes a grinding plate 210, a T-shaped plate 211, a first inclined plate 212, a second inclined plate 215, a third inclined plate 213, a fourth inclined plate 214 and a second bolt 25, and the connection method of the second telescopic device 21 and the third telescopic device 22 is consistent with that of the first telescopic device 20.

[0030] See also Figure 2 , Figure 3 and Figure 4The top of the bottom plate 1 includes a motor 10, a No. 1 support plate 11, a rotating device 12 and a No. 2 support plate 15. The top surface of the No. 1 support plate 11 is fixedly connected to the bottom surface of the motor 10. The output shaft of the motor 10 is clamped with the No. 1 groove 304. The rotating device 12 includes a chain 123, a large rotating wheel 120 and a small rotating wheel 126. The middle of the large rotating wheel 120 is fixedly connected to the outer side of the hollow column 124. The hollow column 124 is sleeved with the rear side of the connecting cylinder 140. The right side of the chain 123 is meshed with the large rotating wheel 120, and the left side of the chain 123 is meshed with the small rotating wheel 126. The center of the small rotating wheel 126 has a No. 1 hole 125, and a No. 1 bearing 121 is arranged inside the No. 1 hole 125. The No. 1 hole 125 is fixedly connected to the outer side of the No. 1 bearing 121. The top surface of the No. 2 support plate 15 is fixedly connected to the bottom surface of the No. 1 support plate 11, the right outer side of the No. 1 bearing 121 is fixedly connected to the rotating handle 122, hold the rotating handle 122, the connecting cylinder 140 stops rotating, and the No. 1 rotating ring 23 moves forward on the thread 140, so that the No. 1 telescopic device 20, the No. 2 telescopic device 21 and the No. 3 telescopic device 22 expand outward to grind and remove rust from the inside of the pipeline. After expanding to a suitable position, the rotating handle 122 is released, and the rust on the inner wall of the pipeline is polished clean by holding the handle 122 multiple times, the left inner side of the No. 1 bearing 121 is fixedly connected to the horizontal axis 160, the bottom of the connecting column 16 is fixedly connected to the upper left corner of the top surface of the No. 2 support plate 15, and the upper rear side of the connecting column 16 is fixedly connected to the horizontal axis 160.

[0031] Working principle:

[0032] The first step is to add water and rust removal liquid to the water tank 301 through the water inlet 300 on the water tank 301. After the addition is completed, the water tank 301 is moved to the inside of the pipe to be cleaned, and the motor 10 is started. The motor 10 drives the rotating column 3 to rotate, thereby rotating the water tank 301. While the rotating column 3 rotates, the pipe to be cleaned is moved so that the grinding device 2 completely enters the inside of the pipe to be cleaned.

[0033] In the second step, when the rotating column 3 rotates, because the No. 2 rotating ring 24 is fixedly connected to the No. 2 cylinder 302, it will drive the entire grinding device 2 and the threaded column 13 to rotate, and because the threaded column 13 is fixedly connected to the hollow column 124, the hollow column 124 drives the large rotating wheel 120 to rotate, and the large rotating wheel 120 drives the small rotating wheel 126 to rotate through the chain 123. The rotation of the small rotating wheel 126 causes the rotating handle 122 to rotate, and the rotating handle 122 is manually held, so that the No. 1 rotating ring 23 moves forward on the thread 140, so that the No. 1 telescopic device 20, the No. 2 telescopic device 21 and the No. 3 telescopic device 22 are expanded outward to grind and remove rust from the inside of the pipeline. After expanding to a suitable position, the rotating handle 122 is released, and the rust on the inner wall of the pipeline is polished clean by holding the handle 122 multiple times.

[0034] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A device for removing rust from the inner wall of a ship pipeline, comprising a bottom plate (1), a telescopic device (2) and a rotating column (3), wherein the telescopic device (2) is located outside the rotating column (3) and the bottom plate (1) is located behind the rotating column (3), characterized in that: The rotating column (3) comprises a water tank (301), a second cylinder (302) and a third cylinder (303); The rear center of the water tank (301) is fixedly connected to the front side of the second cylinder (302), the rear center of the second cylinder (302) is fixedly connected to the front side of the third cylinder (303), a first groove (304) is provided on the rear side of the third cylinder (303), and a water inlet (300) is provided on the surface of the water tank (301); The telescopic device (2) comprises a first rotating ring (23), a second rotating ring (24), a first telescopic device (20), a second telescopic device (21) and a third telescopic device (22); A No. 2 telescopic device (21) is arranged on the top of the No. 1 rotating ring (23) and the No. 2 rotating ring (24), a No. 1 telescopic device (20) is arranged on the right side of the No. 1 rotating ring (23) and the No. 2 rotating ring (24), and a No. 3 telescopic device (22) is arranged on the left side of the No. 1 rotating ring (23) and the No. 2 rotating ring (24); The No. 1 rotating ring (23) comprises a No. 1 ring (230), a No. 1 connecting mechanism (231), a No. 2 connecting mechanism (233) and a No. 3 connecting mechanism (232); the No. 1 connecting mechanism (231), the No. 2 connecting mechanism (233) and the No. 3 connecting mechanism (232) are respectively installed on the top and both sides of the No. 1 ring (230); and the No. 1 ring (230) is provided with threads inside; The second rotating ring (24) has the same structure as the first rotating ring (23), and the second rotating ring (24) comprises a first ring (230), a first connecting mechanism (231), a second connecting mechanism (233) and a third connecting mechanism (232); The inner side of the second rotating ring (24) is fixedly connected to the front side of the second cylinder (302) by the first rotating ring (23), and the first rotating ring (23) is sleeved on the outside of the third cylinder (303); The first connecting mechanism (231) comprises a first plate (3210), a second plate (3212) and a first bolt (234); A second hole (3211) is formed in the middle of the first plate (3210), a third hole (3213) is formed in the middle of the second plate (3212), the second hole (3211) and the third hole (3213) are fixedly connected by a first bolt (234), and the bottoms of the first plate (3210) and the second plate (3212) are fixedly connected to the top of the first ring (230); The second connecting mechanism (233) and the third connecting mechanism (232) are consistent in structure with the first connecting mechanism (231); the bottom of the second connecting mechanism (233) is fixedly connected to the left surface of the first ring (230); the bottom of the third connecting mechanism (232) is fixedly connected to the right surface of the first ring (230); the second rotating ring (24) is consistent in structure with the first rotating ring (23); the inner side of the second rotating ring (24) is fixedly connected to the front side of the second cylinder (302); and the outer side of the third cylinder (303) is provided with a threaded column (13); The threaded column (13) comprises a connecting cylinder (140) and a second bearing (141); The outer ring of the second bearing (141) is fixedly connected to the connecting cylinder (140), the inner ring of the second bearing (141) is fixedly connected to the third cylinder (303), and the connecting cylinder (140) is threadedly connected to the first ring (230); The first telescopic device (20) comprises a grinding plate (210), a T-shaped plate (211), a first inclined plate (212), a second inclined plate (215), a third inclined plate (213), a fourth inclined plate (214) and a second bolt (25); An eleventh hole (3132) is formed at a right angle on the left upper front of the third inclined plate (213), a ninth hole (2130) is formed at a right angle on the left lower rear of the third inclined plate (213), a tenth hole (2131) is formed at the center of the left side of the third inclined plate (213), the fourth inclined plate (214) and the third inclined plate (213) have the same structure, and the ninth holes (2130) on the fourth inclined plate (214) and the third inclined plate (213) are both sleeved on the first bolt (234) of the first rotating ring (23); A seventh hole (2122) is formed at a right angle at the lower front left side of the first inclined plate (212), a sixth hole (2120) is formed at a right angle at the upper rear left side of the first inclined plate (212), and an eighth hole (2121) is formed at the center of the left side of the first inclined plate (212); The second inclined plate (215) has the same structure as the first inclined plate (212); the two No. 7 holes (2122) are sleeved with the first bolt (234) in the second rotating ring (24); the two No. 8 holes (2121) of the second inclined plate (215) and the first inclined plate (212) are aligned with the two No. 10 holes (2131) of the third inclined plate (213) and the fourth inclined plate (214); and the second bolts (25) are inserted into the two No. 8 holes (2121) and the two No. 10 holes (2131); A fourth hole (2110) and a fifth hole (2111) are respectively formed at the two ends of the lower side of the T-shaped plate (211); the top of the T-shaped plate (211) is fixedly connected to the bottom of the grinding plate (210); a second bolt (25) is inserted into the fifth hole (2111) and the two eleventh holes (3132); and the fourth hole (2110) and the two sixth holes (2120) are interspersed with the second bolt (25) for fixed connection; The second telescopic device (21) and the third telescopic device (22) have the same structure as the first telescopic device (20); The top end of the base plate (1) comprises a motor (10) and a first support plate (11); The top surface of the No. 1 support plate (11) is fixedly connected to the bottom surface of the motor (10), and the output shaft of the motor (10) is clamped to the No. 1 groove (304); The top of the bottom plate (1) further comprises a rotating device (12) and a second supporting plate (15); the rotating device (12) comprises a chain (123), a large rotating wheel (120) and a small rotating wheel (126); the middle of the large rotating wheel (120) is fixedly connected to the outer side of the hollow column (124); The hollow column (124) is sleeved inside the rear side of the connecting cylinder (140), the right side of the chain (123) is meshed with the large rotating wheel (120), and the left side of the chain (123) is meshed with the small rotating wheel (126). A No. 1 hole (125) is opened at the center of the small rotating wheel (126), and a No. 1 bearing (121) is arranged inside the No. 1 hole (125). The No. 1 hole (125) is fixedly connected to the outer side of the No. 1 bearing (121), and the top surface of the No. 2 support plate (15) is fixedly connected to the bottom surface of the No. 1 support plate (11).

2. A ship pipeline inner wall rust removal device according to claim 1, characterized in that: The right outer side of the No. 1 bearing (121) is fixedly connected to the rotating handle (122), the left inner side of the No. 1 bearing (121) is fixedly connected to the horizontal axis (160), the bottom of the connecting column (16) is fixedly connected to the upper left corner of the top surface of the No. 2 support plate (15), and the upper rear side of the connecting column (16) is fixedly connected to the horizontal axis (160).

Images