Steel structure rust removal device for offshore oil engineering

Abstract

The utility model relates to the technical field of offshore oil engineering, in particular to an offshore oil engineering steel structure rust removal device which improves rust removal quality and efficiency, facilitates rust removal of tubular steel structures with different diameters and improves practicability. Comprising a baseplate; the device further comprises an auxiliary feeding mechanism, an adjusting mechanism, a feeding mechanism, a pressurizing mechanism, a spraying mechanism and a cleaning mechanism, the adjusting mechanism is installed on the auxiliary feeding mechanism, the feeding mechanism is installed on the adjusting mechanism, the pressurizing mechanism is installed at the top end of the auxiliary feeding mechanism, the spraying mechanism is installed on the pressurizing mechanism, and the cleaning mechanism is installed on the spraying mechanism. The cleaning mechanism is installed at the top end of the auxiliary feeding mechanism, the auxiliary feeding mechanism assists the feeding mechanism in conveying the tubular steel structures, the adjusting mechanism adjusts the height of the feeding mechanism, the feeding mechanism feeds the tubular steel structures with different diameters, and the conveying mechanism conveys the tubular steel structures with different diameters. The spraying mechanism assists the pressurizing mechanism in spraying a rust remover to the tubular steel structure, and the cleaning mechanism removes rust from the tubular steel structure.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore oil engineering, in particular to a rust removal device for steel structures of offshore oil engineering. Background Art

[0002] Steel structure is a structure made of steel materials. It is widely used in various engineering constructions, such as steel bridges, steel factories, steel gates, various large pipeline containers, high-rise buildings and tower rail mechanisms. Due to the influence of external air and water vapor, the surface of the steel structure will rust after being placed for a long time. In order to improve the durability and structural strength of the steel structure, it is necessary to clean the oxide layer on its surface.

[0003] The existing rust removal technology, for example, the prior art with application number CN202021783219.0, includes a workbench, a support wall, a motor, a rotating shaft, a belt, a grinding roller, a rotating column, a cleaning roller brush, a support plate, a rust remover placement box and a negative pressure fan, etc. Through the coordinated arrangement of the workbench, the support wall, the motor, the rotating shaft, the belt, the grinding roller, the rotating column, the cleaning roller brush, the support plate, the rust remover placement box, the negative pressure fan, the rust remover nozzle, the waste residue inlet pipe and the negative pressure air outlet, when using this equipment for rust removal, the rust remover nozzle can evenly spray the rust remover on the steel structure to remove the rust from the steel structure.

[0004] However, the prior art is not convenient for uniformly spraying the rust remover on the cylindrical steel structure, which reduces the rust removal effect. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a rust removal device for offshore oil engineering steel structures, which improves the quality and efficiency of rust removal, facilitates rust removal for tubular steel structures of different diameters, and improves practicality.

[0006] The utility model discloses a rust removal device for offshore oil engineering steel structure, comprising a bottom plate; an auxiliary feeding mechanism, an adjusting mechanism, a feeding mechanism, a pressurizing mechanism, a spraying mechanism and a cleaning mechanism, wherein the adjusting mechanism is mounted on the auxiliary feeding mechanism, the feeding mechanism is mounted on the adjusting mechanism, the pressurizing mechanism is mounted on the top of the auxiliary feeding mechanism, the spraying mechanism is mounted on the pressurizing mechanism, and the cleaning mechanism is mounted on the top of the auxiliary feeding mechanism, the auxiliary feeding mechanism assists the feeding mechanism in transporting a tubular steel structure, the adjusting mechanism adjusts the height of the feeding mechanism, the feeding mechanism feeds tubular steel structures of different diameters, the spraying mechanism assists the pressurizing mechanism in spraying a rust remover on the tubular steel structure, and the cleaning mechanism removes rust from the tubular steel structure; the auxiliary feeding mechanism assists the feeding mechanism in transporting the tubular steel structure, the adjusting mechanism adjusts the height of the feeding mechanism, and then the auxiliary feeding mechanism feeds tubular steel structures of different diameters, the spraying mechanism assists the pressurizing mechanism in spraying a rust remover on the tubular steel structure, so as to improve the quality of rust removal, and the cleaning mechanism removes rust from the tubular steel structure.

[0007] Preferably, the auxiliary feeding mechanism includes a base plate, a feeding rack, a sliding rod, a limit plate, a first spring, a first mounting frame and an auxiliary feeding roller. The feeding rack is installed on the top of the base plate, the sliding rod is slidably installed on the top of the feeding rack, the limit plate is installed on the top of the sliding rod, one end of the first spring is installed on the bottom end of the limit plate, the other end of the first spring is installed on the top of the feeding rack, the bottom end of the sliding rod is installed on the first mounting frame, and the auxiliary feeding roller is rotatably installed on the first mounting frame; the sliding rod is driven to slide on the feeding rack by the elasticity of the first spring, and then the auxiliary feeding mechanism feeds the tubular steel structure through the rotation of the auxiliary feeding roller.

[0008] Preferably, the adjustment mechanism includes a limit rod, a lead screw and two sliding mounting frames, a slide groove is provided on the side wall of the feeding frame, a mounting frame is provided on the side wall of the feeding frame, the limit rod is installed on the mounting frame, the lead screw is rotatably installed on the mounting frame, the two sliding mounting frames are slidably installed in the slide groove of the feeding frame, one sliding mounting frame is slidably installed on the limit rod, and the other sliding mounting frame is threadedly matched with the lead screw; when tubular steel structures of different diameters are to be fed, the lead screw is rotated, and the sliding mounting frame is driven to slide on the slide groove and the limit rod of the feeding frame due to the threaded relationship, thereby adjusting the spacing between the auxiliary feeding roller and the feeding mechanism, thereby feeding tubular steel structures of different diameters.

[0009] Preferably, the feeding mechanism includes a feeding roller, a feeding motor and a transmission belt. The feeding roller is rotatably mounted on two sliding mounting frames through a rotating shaft. The feeding motor is mounted on the sliding mounting frame. The transmission belt connects the output end of the feeding motor and the rotating shaft of the feeding roller. By turning on the feeding motor, the feeding roller is driven to rotate due to the transmission of the transmission belt, and then the tubular steel structures of different diameters are fed through the rotation of the feeding roller.

[0010] Preferably, the pressurizing mechanism includes a pressurizing bin, a pressurizing pump, a storage box and a pipeline, the pressurizing bin is installed on the top of the base plate, the pressurizing pump is installed on the top of the pressurizing bin, the storage box is installed on the side wall of the pressurizing bin, one end of the pipeline is installed on the pressurizing pump, and the other end of the pipeline is installed on the storage box; first, the rust remover is added to the storage box for storage, and then the rust remover in the storage box is added to the pressurizing bin by turning on the pressurizing pump, and the tubular steel structure is sprayed by the spraying mechanism.

[0011] Preferably, the spraying mechanism includes a sliding sleeve, a sealing plate, a push rod, a second mounting frame, a trigger roller and a second spring, the sliding sleeve is mounted on the inner wall of the pressurized chamber, the sealing plate is slidably mounted in the sliding sleeve, the push rod is mounted on the top end of the sealing plate, the push rod is slidably mounted on the top end of the sliding sleeve, a spraying hole is provided on the sliding sleeve, the second mounting frame is mounted on the top end of the push rod, the trigger roller is rotatably mounted on the second mounting frame, one end of the second spring is mounted on the top end of the sliding sleeve, and the other end of the second spring is mounted on the bottom end of the second mounting frame; when the tubular steel structure is not in contact with the trigger roller, the sealing plate is pulled to stick to the spraying hole of the sliding sleeve by the elasticity of the second spring, and the spraying hole is sealed by the sealing plate, and when the tubular steel structure is in contact with the trigger roller, the trigger roller is squeezed and rotated by the tubular steel structure, thereby driving the second spring to contract, and at the same time the push rod slides on the top end of the sliding sleeve, thereby separating the sealing plate from the spraying hole, and at this time the rust remover in the pressurized chamber sandblasts the tubular steel structure through the spraying hole to improve the quality of rust removal.

[0012] Preferably, the cleaning mechanism includes a cleaning frame, a cleaning gear ring, a driving gear, a telescopic rod, a rust removal block, a third spring and a cleaning motor. The cleaning frame is installed on the top of the base plate, the cleaning gear ring is rotatably installed on the cleaning frame, the driving gear is rotatably installed in the cleaning frame, the cleaning gear ring is meshed with the driving gear, the telescopic rod is installed on the inner wall of the cleaning gear ring, the rust removal block is installed on the telescopic rod, one end of the third spring is installed on the rust removal block, the other end of the third spring is installed on the inner wall of the pressure pump, the cleaning motor is installed on the side wall of the cleaning frame, and the output end of the cleaning motor is connected to the driving gear; the driving gear is driven to rotate by the cleaning motor, and then the cleaning gear ring is driven to rotate through the meshing relationship, thereby driving the rust removal block to rotate to clean the tubular steel structure, and the telescopic rod is extended and retracted and the elasticity of the third spring facilitates the rust removal block to remove rust from tubular steel structures of different diameters.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the auxiliary feeding mechanism assists the feeding mechanism in transporting the tubular steel structure, the adjusting mechanism adjusts the height of the feeding mechanism, thereby assisting the feeding mechanism in feeding the tubular steel structures of different diameters, the spraying mechanism assists the pressurizing mechanism in spraying rust remover on the tubular steel structure to improve the quality of rust removal, and the cleaning mechanism removes rust from the tubular steel structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a first axonometric structural schematic diagram of the utility model;

[0015] Figure 2 It is a second axonometric structural schematic diagram of the utility model;

[0016] Figure 3 It is a third axonometric structural schematic diagram of the utility model;

[0017] Figure 4 It is a first side cross-sectional structural schematic diagram of the utility model;

[0018] Figure 5 It is a second side cross-sectional structural schematic diagram of the utility model;

[0019] Figure 6 The utility model Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0020] Markings in the accompanying drawings: 01, auxiliary feeding mechanism; 11, bottom plate; 12, feeding rack; 13, sliding rod; 14, limiting plate; 15, first spring; 16, first mounting frame; 17, auxiliary feeding roller; 02, adjusting mechanism; 21, limiting rod; 22, lead screw; 23, sliding mounting frame; 03, feeding mechanism; 31, feeding roller; 32, feeding motor; 33, transmission belt; 04, pressurizing mechanism; 41, pressurizing bin; 42, pressurizing pump; 43, storage box; 44, pipeline; 05, spraying mechanism; 51, sliding sleeve; 52, sealing plate; 53, push rod; 54, second mounting frame; 55, trigger roller; 56, second spring; 06, cleaning mechanism; 61, cleaning rack; 62, cleaning gear ring; 63, driving gear; 64, telescopic rod; 65, rust removal block; 66, third spring; 67, cleaning motor. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] Example 1

[0023] like Figure 2 , Figure 3 and Figure 6As shown, it includes a bottom plate 11, and also includes an auxiliary feeding mechanism 01, an adjusting mechanism 02, a feeding mechanism 03, a pressurizing mechanism 04, a spraying mechanism 05 and a cleaning mechanism 06. The adjusting mechanism 02 is installed on the auxiliary feeding mechanism 01, the feeding mechanism 03 is installed on the adjusting mechanism 02, the pressurizing mechanism 04 is installed on the top of the auxiliary feeding mechanism 01, the spraying mechanism 05 is installed on the pressurizing mechanism 04, and the cleaning mechanism 06 is installed on the top of the auxiliary feeding mechanism 01;

[0024] The auxiliary feeding mechanism 01 assists the feeding mechanism 03 in transporting the tubular steel structure, the adjusting mechanism 02 adjusts the height of the feeding mechanism 03, the feeding mechanism 03 feeds tubular steel structures of different diameters, the spraying mechanism 05 assists the pressurizing mechanism 04 in spraying rust remover on the tubular steel structure, and the cleaning mechanism 06 removes rust from the tubular steel structure;

[0025] The auxiliary feeding mechanism 01 includes a bottom plate 11, a feeding frame 12, a slide bar 13, a limit plate 14, a first spring 15, a first mounting frame 16 and an auxiliary feeding roller 17. The feeding frame 12 is mounted on the top of the bottom plate 11, the slide bar 13 is slidably mounted on the top of the feeding frame 12, the limit plate 14 is mounted on the top of the slide bar 13, one end of the first spring 15 is mounted on the bottom end of the limit plate 14, the other end of the first spring 15 is mounted on the top of the feeding frame 12, the first mounting frame 16 is mounted on the bottom end of the slide bar 13, and the auxiliary feeding roller 17 is rotatably mounted on the first mounting frame 16;

[0026] The adjustment mechanism 02 includes a limit rod 21, a lead screw 22 and two sliding mounting frames 23. A slide groove is provided on the side wall of the feeding frame 12, and a mounting frame is provided on the side wall of the feeding frame 12. The limit rod 21 is installed on the mounting frame, and the lead screw 22 is rotatably installed on the mounting frame. The two sliding mounting frames 23 are slidably installed in the slide groove of the feeding frame 12, one sliding mounting frame 23 is slidably installed on the limit rod 21, and the other sliding mounting frame 23 is threadedly matched with the lead screw 22;

[0027] The feeding mechanism 03 includes a feeding roller 31, a feeding motor 32 and a transmission belt 33. The feeding roller 31 is rotatably mounted on two sliding mounting frames 23 through a rotating shaft. The feeding motor 32 is mounted on the sliding mounting frame 23. The transmission belt 33 connects the output end of the feeding motor 32 with the rotating shaft of the feeding roller 31.

[0028] The pressurizing mechanism 04 includes a pressurizing bin 41, a pressurizing pump 42, a material storage box 43 and a pipeline 44. The pressurizing bin 41 is installed at the top of the bottom plate 11, the pressurizing pump 42 is installed at the top of the pressurizing bin 41, the material storage box 43 is installed on the side wall of the pressurizing bin 41, one end of the pipeline 44 is installed on the pressurizing pump 42, and the other end of the pipeline 44 is installed on the material storage box 43;

[0029] The spraying mechanism 05 includes a sliding sleeve 51, a sealing plate 52, a push rod 53, a second mounting frame 54, a trigger roller 55 and a second spring 56. The sliding sleeve 51 is mounted on the inner wall of the pressurized chamber 41, the sealing plate 52 is slidably mounted in the sliding sleeve 51, the push rod 53 is mounted on the top of the sealing plate 52, the push rod 53 is slidably mounted on the top of the sliding sleeve 51, the sliding sleeve 51 is provided with a spraying hole, the second mounting frame 54 is mounted on the top of the push rod 53, the trigger roller 55 is rotatably mounted on the second mounting frame 54, one end of the second spring 56 is mounted on the top of the sliding sleeve 51, and the other end of the second spring 56 is mounted on the bottom end of the second mounting frame 54;

[0030] The sliding rod 13 is driven to slide on the feeding frame 12 by the elasticity of the first spring 15, and then the auxiliary feeding roller 17 is used to rotate the auxiliary feeding mechanism 03 to feed the tubular steel structure. When tubular steel structures of different diameters are to be fed, the lead screw 22 is rotated, and the sliding mounting frame 23 is driven to slide on the slide groove and the limit rod 21 of the feeding frame 12 due to the threaded relationship, and then the distance between the auxiliary feeding roller 17 and the feeding mechanism 03 is adjusted, so that tubular steel structures of different diameters can be fed. By turning on the feeding motor 32, the feeding roller 31 is driven to rotate due to the transmission of the transmission belt 33, and then the tubular steel structures of different diameters are fed by the rotation of the feeding roller 31. First, the rust remover is added to the storage box 43 for storage. , and then the rust remover in the storage box 43 is added into the pressurizing bin 41 by opening the pressurizing pump 42, and the tubular steel structure is sprayed by the spraying mechanism 05. When the tubular steel structure is not in contact with the trigger roller 55, the sealing plate 52 is pulled to the spraying hole of the sliding sleeve 51 by the elasticity of the second spring 56, and the spraying hole is sealed by the sealing plate 52. When the tubular steel structure is in contact with the trigger roller 55, the trigger roller 55 is squeezed by the tubular steel structure to rotate, thereby driving the second spring 56 to contract, and at the same time, the push rod 53 slides on the top of the sliding sleeve 51, thereby separating the sealing plate 52 from the spraying hole. At this time, the rust remover in the pressurizing bin 41 sandblasts the tubular steel structure through the spraying hole to improve the quality of rust removal, and the cleaning mechanism 06 removes rust from the tubular steel structure.

[0031] Example 2

[0032] like Figures 1 to 6As shown, it includes a bottom plate 11, and also includes an auxiliary feeding mechanism 01, an adjusting mechanism 02, a feeding mechanism 03, a pressurizing mechanism 04, a spraying mechanism 05 and a cleaning mechanism 06. The adjusting mechanism 02 is installed on the auxiliary feeding mechanism 01, the feeding mechanism 03 is installed on the adjusting mechanism 02, the pressurizing mechanism 04 is installed on the top of the auxiliary feeding mechanism 01, the spraying mechanism 05 is installed on the pressurizing mechanism 04, and the cleaning mechanism 06 is installed on the top of the auxiliary feeding mechanism 01. The auxiliary feeding mechanism 01 assists the feeding mechanism 03 to transport the tubular steel structure, the adjusting mechanism 02 adjusts the height of the feeding mechanism 03, the feeding mechanism 03 feeds tubular steel structures of different diameters, the spraying mechanism 05 assists the pressurizing mechanism 04 to spray rust remover on the tubular steel structure, and the cleaning mechanism 06 removes rust from the tubular steel structure;

[0033] The auxiliary feeding mechanism 01 includes a bottom plate 11, a feeding frame 12, a slide bar 13, a limit plate 14, a first spring 15, a first mounting frame 16 and an auxiliary feeding roller 17. The feeding frame 12 is mounted on the top of the bottom plate 11, the slide bar 13 is slidably mounted on the top of the feeding frame 12, the limit plate 14 is mounted on the top of the slide bar 13, one end of the first spring 15 is mounted on the bottom end of the limit plate 14, the other end of the first spring 15 is mounted on the top of the feeding frame 12, the first mounting frame 16 is mounted on the bottom end of the slide bar 13, and the auxiliary feeding roller 17 is rotatably mounted on the first mounting frame 16;

[0034] The adjustment mechanism 02 includes a limit rod 21, a lead screw 22 and two sliding mounting frames 23. A slide groove is provided on the side wall of the feeding frame 12, and a mounting frame is provided on the side wall of the feeding frame 12. The limit rod 21 is installed on the mounting frame, and the lead screw 22 is rotatably installed on the mounting frame. The two sliding mounting frames 23 are slidably installed in the slide groove of the feeding frame 12, one sliding mounting frame 23 is slidably installed on the limit rod 21, and the other sliding mounting frame 23 is threadedly matched with the lead screw 22;

[0035] The cleaning mechanism 06 includes a cleaning frame 61, a cleaning gear ring 62, a driving gear 63, a telescopic rod 64, a rust removal block 65, a third spring 66 and a cleaning motor 67. The cleaning frame 61 is installed at the top of the bottom plate 11, the cleaning gear ring 62 is rotatably installed on the cleaning frame 61, the driving gear 63 is rotatably installed in the cleaning frame 61, the cleaning gear ring 62 is meshed with the driving gear 63, the telescopic rod 64 is installed on the inner wall of the cleaning gear ring 62, the rust removal block 65 is installed on the telescopic rod 64, one end of the third spring 66 is installed on the rust removal block 65, and the other end of the third spring 66 is installed on the inner wall of the pressure pump 42. The cleaning motor 67 is installed on the side wall of the cleaning frame 61, and the output end of the cleaning motor 67 is connected to the driving gear 63;

[0036] The auxiliary feeding mechanism 01 assists the feeding mechanism 03 in transporting the tubular steel structure, the adjusting mechanism 02 adjusts the height of the feeding mechanism 03, and then assists the feeding mechanism 03 in feeding the tubular steel structures of different diameters, the spraying mechanism 05 assists the pressurizing mechanism 04 in spraying the rust remover on the tubular steel structure to improve the quality of rust removal, and the driving gear 63 is driven to rotate by turning on the cleaning motor 67, and then the cleaning gear ring 62 is driven to rotate through the meshing relationship, and then the rust removal block 65 is driven to rotate to clean the tubular steel structure, and the extension and retraction of the telescopic rod 64 and the elasticity of the third spring 66 facilitate the rust removal block 65 to remove rust on tubular steel structures of different diameters.

[0037] like Figures 1 to 6 As shown, the utility model is a rust removal device for marine petroleum engineering steel structures. When it is working, the elasticity of the first spring 15 drives the sliding rod 13 to slide on the feeding rack 12, and then the auxiliary feeding roller 17 rotates to assist the feeding mechanism 03 to feed the tubular steel structure. When tubular steel structures of different diameters are to be fed, the lead screw 22 is rotated, and the sliding mounting frame 23 is driven to slide on the slide groove and the limit rod 21 of the feeding rack 12 due to the threaded relationship, and then the distance between the auxiliary feeding roller 17 and the feeding mechanism 03 is adjusted, so that tubular steel structures of different diameters are fed. By turning on the feeding motor 32, the feeding roller 31 is driven to rotate due to the transmission of the transmission belt 33, and then the tubular steel structures of different diameters are fed by the rotation of the feeding roller 31. First, the rust remover is added to the storage box 43 for storage, and then the rust remover in the storage box 43 is added to the pressurizing bin 4 by turning on the pressure pump 42. 1, the tubular steel structure is sprayed by the spraying mechanism 05. When the tubular steel structure is not in contact with the trigger roller 55, the sealing plate 52 is pulled to stick to the spraying hole of the sliding sleeve 51 by the elasticity of the second spring 56, and the spraying hole is sealed by the sealing plate 52. When the tubular steel structure is in contact with the trigger roller 55, the trigger roller 55 is squeezed by the tubular steel structure to rotate, thereby driving the second spring 56 to contract, and at the same time, the push rod 53 slides on the top of the sliding sleeve 51, thereby separating the sealing plate 52 from the spraying hole. At this time, the rust remover in the pressurized chamber 41 sandblasts the tubular steel structure through the spraying hole to improve the quality of rust removal. The driving gear 63 is driven to rotate by turning on the cleaning motor 67, and then the cleaning gear ring 62 is driven to rotate through the meshing relationship, thereby driving the rust removal block 65 to rotate to clean the tubular steel structure. The extension and retraction of the telescopic rod 64 and the elasticity of the third spring 66 facilitate the rust removal block 65 to remove rust from tubular steel structures of different diameters.

[0038] The feeding motor 32, the pressure pump 42 and the cleaning motor 67 of the utility model are purchased on the market, and the technicians in the industry only need to install and operate them according to the accompanying instruction manuals, without the need for the technicians in this field to make creative efforts.

[0039] The main functions achieved by the utility model are: in the process of offshore oil engineering work, the quality and efficiency of rust removal are improved, and it is convenient to remove rust from tubular steel structures of different diameters, thereby improving practicability.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A rust removal device for offshore oil engineering steel structure, comprising a bottom plate (11); characterized in that: It also includes an auxiliary feeding mechanism (01), an adjusting mechanism (02), a feeding mechanism (03), a pressurizing mechanism (04), a spraying mechanism (05) and a cleaning mechanism (06), wherein the adjusting mechanism (02) is mounted on the auxiliary feeding mechanism (01), the feeding mechanism (03) is mounted on the adjusting mechanism (02), the pressurizing mechanism (04) is mounted on the top of the auxiliary feeding mechanism (01), the spraying mechanism (05) is mounted on the pressurizing mechanism (04), and the cleaning mechanism (06) is mounted on the top of the auxiliary feeding mechanism (01); The auxiliary feeding mechanism (01) assists the feeding mechanism (03) in transporting the tubular steel structure, the adjusting mechanism (02) adjusts the height of the feeding mechanism (03), the feeding mechanism (03) feeds tubular steel structures of different diameters, the spraying mechanism (05) assists the pressurizing mechanism (04) in spraying rust remover on the tubular steel structure, and the cleaning mechanism (06) removes rust from the tubular steel structure.

2. The rust removal device for offshore oil engineering steel structure according to claim 1, characterized in that: The auxiliary feeding mechanism (01) comprises a base plate (11), a feeding frame (12), a slide bar (13), a limit plate (14), a first spring (15), a first mounting frame (16) and an auxiliary feeding roller (17); the feeding frame (12) is mounted on the top of the base plate (11); the slide bar (13) is slidably mounted on the top of the feeding frame (12); the limit plate (14) is mounted on the top of the slide bar (13); one end of the first spring (15) is mounted on the bottom end of the limit plate (14); the other end of the first spring (15) is mounted on the top of the feeding frame (12); the first mounting frame (16) is mounted on the bottom end of the slide bar (13); and the auxiliary feeding roller (17) is rotatably mounted on the first mounting frame (16).

3. A rust removal device for offshore oil engineering steel structure as claimed in claim 2, characterized in that: The adjusting mechanism (02) comprises a limit rod (21), a lead screw (22) and two sliding mounting frames (23); a slide groove is arranged on the side wall of the feeding frame (12); a mounting frame is arranged on the side wall of the feeding frame (12); the limit rod (21) is mounted on the mounting frame; the lead screw (22) is rotatably mounted on the mounting frame; the two sliding mounting frames (23) are slidably mounted in the slide groove of the feeding frame (12); one sliding mounting frame (23) is slidably mounted on the limit rod (21); and the other sliding mounting frame (23) is threadedly matched with the lead screw (22).

4. A rust removal device for offshore oil engineering steel structure as claimed in claim 3, characterized in that: The feeding mechanism (03) comprises a feeding roller (31), a feeding motor (32) and a transmission belt (33); the feeding roller (31) is rotatably mounted on two sliding mounting frames (23) via a rotating shaft; the feeding motor (32) is mounted on the sliding mounting frames (23); and the transmission belt (33) connects the output end of the feeding motor (32) and the rotating shaft of the feeding roller (31).

5. The rust removal device for offshore oil engineering steel structure according to claim 2, characterized in that: The pressurizing mechanism (04) comprises a pressurizing bin (41), a pressurizing pump (42), a material storage box (43) and a pipeline (44); the pressurizing bin (41) is mounted on the top of the bottom plate (11); the pressurizing pump (42) is mounted on the top of the pressurizing bin (41); the material storage box (43) is mounted on the side wall of the pressurizing bin (41); one end of the pipeline (44) is mounted on the pressurizing pump (42); and the other end of the pipeline (44) is mounted on the material storage box (43).

6. The rust removal device for offshore oil engineering steel structure according to claim 5, characterized in that: The spraying mechanism (05) comprises a sliding sleeve (51), a sealing plate (52), a push rod (53), a second mounting frame (54), a trigger roller (55) and a second spring (56). The sliding sleeve (51) is mounted on the inner wall of the pressurizing chamber (41), the sealing plate (52) is slidably mounted in the sliding sleeve (51), the push rod (53) is mounted on the top end of the sealing plate (52), the push rod (53) is slidably mounted on the top end of the sliding sleeve (51), a spraying hole is arranged on the sliding sleeve (51), the second mounting frame (54) is mounted on the top end of the push rod (53), the trigger roller (55) is rotatably mounted on the second mounting frame (54), one end of the second spring (56) is mounted on the top end of the sliding sleeve (51), and the other end of the second spring (56) is mounted on the bottom end of the second mounting frame (54).

7. The rust removal device for offshore oil engineering steel structure according to claim 2, characterized in that: The cleaning mechanism (06) comprises a cleaning frame (61), a cleaning gear ring (62), a driving gear (63), a telescopic rod (64), a rust removal block (65), a third spring (66) and a cleaning motor (67). The cleaning frame (61) is mounted on the top of the base plate (11), the cleaning gear ring (62) is rotatably mounted on the cleaning frame (61), the driving gear (63) is rotatably mounted in the cleaning frame (61), the cleaning gear ring (62) is meshed with the driving gear (63), the telescopic rod (64) is mounted on the inner wall of the cleaning gear ring (62), the rust removal block (65) is mounted on the telescopic rod (64), one end of the third spring (66) is mounted on the rust removal block (65), the other end of the third spring (66) is mounted on the inner wall of the pressure pump (42), the cleaning motor (67) is mounted on the side wall of the cleaning frame (61), and the output end of the cleaning motor (67) is connected to the driving gear (63).

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