A tower tube rust removal and repainting device

Abstract

The utility model discloses a tower drum rust removal and paint repair device belongs to tower drum repair technical field, including main casing, the inner chamber rotation of main casing is connected with the main shaft, and the outer wall fixed connection of main shaft has the sand blasting head for polishing tower drum outer wall, and removes the rust of tower drum outer wall through the high -speed abrasive of sand blasting head and sprays, and the side of sand blasting head is provided with the air -jet head for the cleaning of tower drum outer wall, the utility model discloses when using, through setting up multiple main connecting block and secondary connecting block, make the pull rope close, and multiple main connecting block and secondary connecting block overturn to tower drum direction in proper order to the tower drum outer wall of different inner diameter is pasted, and the curved surface of the tower drum of different model and size is adapted, and the contact area of magnetic attraction structure and tower drum is increased, ensure that magnetic attraction structure and tower drum outer wall always closely paste, realize the stable fixation with the tower drum of different model and size, effectively resist the wind power, operation vibration of high altitude operation's external force influence, reduce the risk of falling of device operation.

Description

Technical Field

[0001] This utility model relates to the field of tower repair technology, specifically a tower rust removal and paint repair device. Background Technology

[0002] A tower is a tall, columnar structure widely used in energy, communications, transportation and other fields. It is usually made of metal or composite materials and has characteristics such as high strength, wind load resistance and corrosion resistance. It can support the equipment on top and lift it to a certain height.

[0003] Because tower structures are mostly made of steel, they are susceptible to electrochemical corrosion and rust when exposed to the outdoors for extended periods, leading to a decrease in structural strength. Rust removal and repainting devices can extend the corrosion resistance period of towers by thoroughly removing corrosion sources and forming a protective coating, directly reducing the risk of premature failure due to corrosion.

[0004] Different tower models have different inner diameter specifications due to varying process requirements, heights, and dimensions. This means that traditional magnetic fixing structures, which rely on magnetic force to adhere to the outer wall of the tower, cannot adapt to the tower surface. Consequently, gaps or only partial contact may occur between the magnet and the tower, reducing the contact area and decreasing the magnet's attraction force. This can cause the device to shake, twist, or even slide along the outer wall of the tower during operation, affecting the accuracy of rust removal and paint repair and posing a significant safety hazard. Therefore, this invention provides a tower rust removal and paint repair device to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a tower rust removal and paint repair device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A tower rust removal and paint repair device includes a main shell. A main shaft is rotatably connected to the inner cavity of the main shell. A sandblasting head for grinding the outer wall of the tower is fixedly connected to the outer wall of the main shaft. High-speed abrasive is ejected from the sandblasting head to remove rust from the outer wall of the tower. An air jet nozzle for cleaning the outer wall of the tower is located on one side of the sandblasting head. Gas is ejected from the air jet nozzle to clean the rust-removed area of ​​the outer wall of the tower. A paint spraying nozzle is located at the end of the air jet nozzle away from the sandblasting head. Paint is sprayed from the paint spraying nozzle to repair the outer wall of the tower. A silicone baffle for isolation is fixedly connected to the outer wall of the main shaft. The two ends of the main shell... All components are fixedly connected with a fixing structure to increase stability. The fixing structure includes a main connecting block, which is rotatably connected to the outer wall of the main shell. A secondary connecting block is rotatably connected to the inner cavity of the main connecting block. A magnetic attraction structure for fixing the main shell to the outer wall of the tower is fixedly installed in the inner cavity of the secondary connecting block. The magnetic attraction structure generates a strong magnetic force to stably fix the main shell to the outer wall of the tower. A pull rope is slidably connected to the inner cavity of the main connecting block and the secondary connecting block near the tower end for pulling the main connecting block and the secondary connecting block to flip towards the tower end. By tightening the pull rope, the main connecting block and the secondary connecting block flip and fit against the outer wall of the tower in sequence.

[0008] As a further embodiment of this utility model, the magnetic attraction structure includes a clamping block, which is fixedly connected to the inner cavity of the secondary connecting block, and the inner cavity of the clamping block is rotatably connected to a rubber roller for driving the device to move up and down.

[0009] As a further embodiment of this utility model, the fixing structure also includes a secondary shell, one end of which is fixedly connected to the outer wall of the main shell, and the inner cavity of the secondary shell is rotatably connected to a winding rod for driving the pull rope to tighten.

[0010] As a further embodiment of this utility model, an extension support block is fixedly connected to the end of the secondary shell away from the main shell, and the main connecting block is rotatably connected to the outer wall of the extension support block via a connecting shaft.

[0011] As a further embodiment of this utility model, an extension shell is fixedly connected to the top of the main shell, a storage box for storing abrasive is fixedly connected to the inner cavity of the extension shell, a liquid storage box for storing paint is also fixedly connected to the inner cavity of the extension shell, a lower groove is provided in the inner cavity of the extension shell, and an air pump for supplying gas to the jet head is fixedly connected to the inner cavity of the lower groove.

[0012] As a further embodiment of this utility model, a receiving bin for receiving abrasive material that rebounds and falls back is fixedly connected to the bottom of the main shell, a silicone baffle for preventing contamination of the abrasive material is fixedly connected to the top of the receiving bin, a telescopic extension tube for increasing the sealing effect is fixedly connected to the end of the main shell near the tower, and an airbag ring is fixedly connected to the end of the telescopic extension tube away from the main shell, and the telescopic extension tube cooperates with the airbag ring.

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

[0014] When in use, this utility model is equipped with multiple main connecting blocks and secondary connecting blocks. When the pull rope is tightened, the multiple main connecting blocks and secondary connecting blocks flip sequentially toward the tower and fit against the outer wall of the tower with different inner diameters. This adapts to the curved surfaces of towers of different models and sizes, and increases the contact area between the magnetic structure and the tower. This ensures that the magnetic structure and the outer wall of the tower are always tightly fitted, achieving stable fixation with towers of different models and sizes. It effectively resists the influence of external forces such as wind and vibration during high-altitude operations, and reduces the risk of the device falling off during operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a tower rust removal and paint repair device.

[0016] Figure 2 This is a schematic diagram of the main connecting block in a tower rust removal and paint repair device.

[0017] Figure 3 This is a schematic diagram of the pull rope structure in a tower rust removal and paint repair device.

[0018] Figure 4 This is a schematic diagram of the airbag ring in a tower rust removal and paint repair device.

[0019] Figure 5 This is a schematic diagram of the structure of a silicone partition in a tower rust removal and paint repair device.

[0020] In the diagram: 1. Main shell; 2. Main shaft; 3. Sandblasting head; 4. Air jet head; 5. Fixing structure; 6. Extension shell; 7. Receiving bin; 8. Nozzle; 201. Silicone partition; 501. Main connecting block; 502. Secondary connecting block; 503. Magnetic suction structure; 504. Clamping block; 505. Rubber roller; 506. Motor; 507. Secondary shell; 508. Winding rod; 509. Electric motor; 510. Extension support block; 511. Inner groove; 512. Pull rope; 601. Storage bin; 602. Liquid storage bin; 603. Lower groove; 604. Air pump; 605. Discharge extension hose; 606. Liquid discharge extension hose; 607. Air discharge extension hose; 608. Motor; 609. Protective shell; 701. Silicone baffle; 702. Telescopic extension tube; 703. Airbag ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 In this embodiment of the invention, a tower rust removal and repainting device includes a main shell 1. A main shaft 2 is rotatably connected to the inner cavity of the main shell 1. A sandblasting head 3 for grinding the outer wall of the tower is fixedly connected to the outer wall of the main shaft 2. The sandblasting head 3 sprays high-speed abrasive to remove rust from the outer wall of the tower, exposing a fresh metal surface and allowing the new paint layer to bond more firmly with the tower substrate. An air jet head 4 is provided on one side of the sandblasting head 3 for cleaning the outer wall of the tower. The air jet head 4 sprays gas to clean the area of ​​the outer wall of the tower after rust removal, blowing away the sandblasting abrasive and rust residue remaining on the surface of the tower, preventing residual abrasive and rust residue from affecting the subsequent painting quality and preventing problems such as bulging and peeling under the new paint layer due to foreign objects. A paint spraying head 8 is provided at the end of the air jet head 4 away from the sandblasting head 3, spraying paint onto the tower. The outer wall is repaired so that the paint forms a protective coating on the outer wall of the tower, which isolates the tower base from corrosive media such as air, moisture, and salt, thus playing a role in corrosion prevention and rust prevention and extending the service life of the tower. Multiple sandblasting heads 3, air jet heads 4 and nozzles 8 are provided, and multiple sandblasting heads 3, air jet heads 4 and nozzles 8 are fixedly connected to the outer wall of the main shaft 2 in an axial array. The outer wall of the main shaft 2 is fixedly connected with silicone baffles 201 for isolation. There are four silicone baffles 201 in total, and the four silicone baffles 201 are fixedly connected to the outer wall of the main shaft 2 in a circumferential array. The sandblasting heads 3, air jet heads 4 and nozzles 8 are located between the four silicone baffles 201, and the four silicone baffles 201 form a physical barrier to separate the sandblasting heads 3, air jet heads 4 and nozzles 8. Both ends of the main shell 1 are fixedly connected with fixing structures 5 to increase stability.

[0023] The fixing structure 5 includes a main connecting block 501, which is rotatably connected to the outer wall of the main shell 1. A secondary connecting block 502 is rotatably connected to the inner cavity of the main connecting block 501 via a connecting shaft. A magnetic attraction structure 503 for fixing the main shell 1 to the outer wall of the tower is fixedly installed in the inner cavity of the secondary connecting block 502. The magnetic attraction structure 503 generates a strong magnetic force, attracting the main shell 1 to the tower surface and stably fixing it to the outer wall of the tower. Multiple main connecting blocks 501 and secondary connecting blocks 502 are provided, all rotatably connected via connecting shafts. The main connecting blocks 501 and secondary connecting blocks 502 are close to each other. Two pull ropes 512 are slidably connected to the inner cavity near the tower end for pulling the main connecting block 501 and the secondary connecting block 502 to flip towards the tower end. The ends of the two pull ropes 512 away from the main shell 1 are fixedly connected to the secondary connecting block 502 farthest from the main shell 1. By tightening the pull ropes 512, the main connecting block 501 and the secondary connecting block 502 are flipped towards the tower in sequence and attached to the outer wall of the tower with different inner diameters. This adapts to the curved surfaces of different towers, increases the contact area between the magnetic structure 503 and the tower, improves the adaptability of the fixation, and reduces the problem of poor fixation caused by differences in the shape of the tower.

[0024] Please see Figures 1-3 The magnetic attraction structure 503 includes a clamping block 504, which is fixedly connected to the inner cavity of the secondary connecting block 502. The inner cavity of the secondary connecting block 502 has an inner groove 511, and the clamping block 504 is fixedly connected to the inner cavity of the inner groove 511. The inner cavity of the clamping block 504 is rotatably connected to a rubber roller 505 for driving the device up and down via a transverse shaft. Specifically, four rubber rollers 505 are provided, all fixedly connected to the outer wall of the transverse shaft, and neodymium iron boron permanent magnets are fixedly installed in the inner cavities of the four rubber rollers 505. More specifically, a motor for driving the rubber rollers 505 to rotate is fixedly installed in the inner cavity of the secondary connecting block 502. The output shaft of motor 506 passes through clamping block 504 and is fixedly connected to the transverse shaft. After the secondary connecting block 502 is attached to the outer wall of the tower, the output shaft of motor 506 drives rubber roller 505 to rotate, causing the main shell 1 to move upward and perform touch-up painting on the high part of the outer wall of the tower. At the same time, when rubber roller 505 contacts the outer wall of the tower, the strong magnetic field generated by it can penetrate rubber roller 505 and be attracted to the surface of steel tower, anchoring the main shell 1 to the outer wall of the tower, effectively preventing the main shell 1 from slipping, tilting or falling, and providing a stable bearing foundation for working components such as sandblasting head 3, air jet head 4, and nozzle 8.

[0025] Please see Figures 1-3The fixing structure 5 also includes a secondary shell 507. One end of the secondary shell 507 near the main shell 1 is fixedly connected to the outer wall of the main shell 1. The inner cavity of the secondary shell 507 is rotatably connected to a winding rod 508 for tightening the pull ropes 512. Specifically, the ends of the two pull ropes 512 away from the secondary connecting block 502 are fixedly connected to the outer wall of the winding rod 508. The inner cavity of the secondary shell 507 is fixedly installed with a motor 509 for rotating the winding rod 508. The output shaft of the motor 509 is fixedly connected to the top of the winding rod 508. During use, it can be driven... The motor 509 drives the winding rod 508 to rotate, causing the pull rope 512 to wrap tightly around the outer wall of the winding rod 508. This causes the main connecting block 501 and the secondary connecting block 502 to flip towards the tower, until the rubber roller 505 adheres to the surface of the tower, increasing the contact range between the rubber roller 505 and the tower and improving the adhesion. Alternatively, the motor 509 can drive the winding rod 508 to rotate in the opposite direction, loosening the pull rope 512. This allows the main connecting block 501 and the secondary connecting block 502 to move away from the tower under their own weight or external force, making it easier to remove the device from the tower.

[0026] Please see Figures 1-3 An extension support block 510 is fixedly connected to the end of the secondary shell 507 away from the main shell 1. The main connecting block 501 closest to the main shell 1 is rotatably connected to the outer wall of the extension support block 510 through a connecting shaft. The extension support block 510 extends the main connecting block 501 outward, so that the fixed structure 5 and the main shell 1 maintain a certain distance. This avoids excessive local stress on the main shell 1 due to its own weight concentration, thus improving the overall stability. At the same time, by increasing the distance between the main shell 1 and the main connecting block 501, a larger rotation margin is added for the angle adjustment of the main connecting block 501 and the secondary connecting block 502. Therefore, when facing a tower with a small inner diameter, the extra distance provided by the extension support block 510 allows the main connecting block 501 and the secondary connecting block 502 to rotate significantly around the extension support block 510 and adjust their angle inward. This avoids collision with the main shell 1 due to being too close to it, and ensures that the rubber roller 505 can fit tightly against the surface of the small-diameter tower.

[0027] Please see Figures 4-5An extension shell 6 is fixedly connected to the top of the main shell 1. A storage tank 601 for storing abrasive is fixedly connected to the inner cavity of the extension shell 6. A liquid storage tank 602 for storing paint is also fixedly connected to the inner cavity of the extension shell 6. A lower groove 603 is provided in the inner cavity of the extension shell 6. An air pump 604 for providing gas to the jet head 4 is fixedly connected to the inner cavity of the lower groove 603. Specifically, when not in operation, the storage tank 601 is located above the sandblasting head 3, and a discharge extension hose 605 for conveying the abrasive stored in the storage tank 601 to the sandblasting head 3 is fixedly connected to the bottom of the storage tank 601. The discharge extension hose 605 passes through the main shell 1 and the extension shell 6 and is fixedly connected to the inner cavity of the main shaft 2. Multiple sandblasting heads 3 are fixedly connected to the outer wall of the discharge extension hose 605, so that the abrasive flows downward by its own gravity. With the flexible conveying of the discharge extension hose 605, the abrasive can be stably conveyed to each sandblasting head 3. Because the discharge extension hose 605 is flexible, when the main shaft 2 drives the blasting head 3 to rotate, the discharge extension hose 605 can flexibly deform with the main shaft 2 without obstruction due to rotation, ensuring a continuous and uniform supply of abrasive to the blasting head 3, ensuring the continuity and efficiency of rust removal operations, and avoiding work stoppage due to abrasive supply interruption. The liquid storage tank 602 is located above the nozzle 8, and the bottom of the liquid storage tank 602 is fixedly connected to the discharge extension hose 606 for transporting the paint stored in the liquid storage tank 602 to the nozzle 8. The discharge extension hose 606 passes through the main housing 1 and the extension housing 6 and is fixedly connected to the inner cavity of the main shaft 2. Multiple nozzles 8 are fixedly connected to the outer wall of the discharge extension hose 605. Because the liquid storage tank 602 is above the nozzle 8, the height difference can be used to help the paint flow downwards, and the paint can be accurately delivered to each nozzle 8 through the discharge extension hose 606. When the main shaft 2 drives the nozzle 8 to rotate, the hose can freely bend to adapt to the change of rotation angle, ensuring paint stability. The supply of paint ensures that the spray nozzle 8 can evenly spray paint onto the outer wall of the tower, guaranteeing the quality of the paint touch-up and avoiding problems such as uneven coating thickness caused by uneven paint supply. The air pump 604 is located above the spray nozzle 4, and the bottom of the spray nozzle 4 is fixedly connected to an exhaust extension hose 607 for delivering compressed air generated by the air pump 604 to the spray nozzle 4. The exhaust extension hose 607 passes through the main shell 1 and the extension shell 6 and is fixedly connected to the inner cavity of the main shaft 2. Multiple spray nozzles 4 are fixedly connected to the outer wall of the exhaust extension hose 607, so that the compressed air generated by the air pump 604 is delivered to each spray nozzle 4 through the exhaust extension hose 607. At the same time, the flexible nature of the exhaust extension hose 607 allows it to flexibly adjust its shape with the rotation of the main shaft 2 without obstructing the airflow, ensuring that the spray nozzle 4 can continuously obtain a stable air pressure. This allows the spray nozzle 4 to effectively blow away rust and residual abrasive after rust removal from the outer wall of the tower, creating clean surface conditions for subsequent painting operations and improving the painting effect and coating adhesion.

[0028] Please see Figures 4-5The bottom of the main shell 1 is fixedly connected to a receiving bin 7 for receiving the rebounding abrasive. The bottom of the extension shell 6 is fixedly connected to a motor 608 for driving the main shaft 2 to rotate. The output shaft of the motor 608 passes through the main shell 1 and the receiving bin 7 and is fixedly connected to the bottom of the main shaft 2. The inner cavity of the receiving bin 7 is fixedly connected to a protective shell 609 for protecting the outer wall of the output shaft of the motor 608. The output shaft of the motor 608 is connected to the inner cavity of the protective shell 609. The top of the receiving bin 7 is fixedly connected to a device to prevent the abrasive from being contaminated. A silicone baffle 701 is installed to prevent paint from entering the receiving bin 7 and contaminating the abrasive, thus preventing the abrasive from being reused. Two silicone baffles 701 are installed, and the two silicone baffles 701 overlap each other with their edges in close contact, forming a temporary receiving surface. When sand and rust fall on top of it, after accumulating to a certain weight, the silicone baffle 701 will flip downwards due to gravity over its own elasticity, allowing the sand and rust to enter the receiving bin 7. The cavity allows for the recycling, screening, and cleaning of the abrasive after operation, enabling it to be reused by the blasting head 3. This reduces abrasive waste and prevents sand and rust from scattering randomly after blasting, thus preventing their accumulation at the bottom or surrounding area of ​​the tower and reducing subsequent cleaning work, maintaining a clean working environment. A telescopic extension tube 702, which enhances the sealing effect, is fixedly connected to the opening at the end of the main shell 1 closest to the tower. An airbag ring 703 is fixedly connected to the end of the telescopic extension tube 702 away from the main shell 1, and... The telescopic extension tube 702 cooperates with the airbag ring 703, allowing the telescopic extension tube 702 to use its own elasticity and extensibility to push the airbag ring 703 to fit against the surface of the tower. Together with the telescopic extension tube 702 and the main shell 1, they form a relatively closed working area. Thus, during sandblasting, abrasive and rust are confined within the sealed space, preventing abrasive and rust from splashing to the outside and polluting the surrounding environment. During painting, the impact of wind on paint mist is reduced, the paint adhesion rate is improved, and dust blown off the undried paint layer is prevented from causing pollution.

[0029] The working principle of this utility model is as follows:

[0030] In use, this invention first drives the winding rod 508 to rotate via the drive motor 509, causing the pull rope 512 to wrap tightly around the outer wall of the winding rod 508. This causes the main connecting block 501 and the secondary connecting block 502 to flip towards the tower, until the rubber roller 505 adheres to the surface of the tower, thus securing it to the outer wall of the tower. Then, the drive motor 506 drives the output shaft to rotate the rubber roller 505, moving the main shell 1 to the area requiring repair. The drive motor 608 then rotates the main shaft 2 by 90°, aligning the sandblasting head 3 with the area to be rusted. Abrasive material is then sprayed from the sandblasting head 3 to remove rust from the tower surface. During rust removal, the abrasive material and the rust removed are combined... The slag will fall into the top of the silicone baffle 701 by pushing the airbag ring 703 and the telescopic extension tube 702. After accumulating to a certain weight, the silicone baffle 701 will flip downward due to gravity over its own elasticity, allowing the sand and rust to enter the inner cavity of the receiving bin 7 and be collected. Then, the motor 608 will drive the main shaft 2 to rotate 90°, so that the jet nozzle 4 is aimed at the area to be repaired. At the same time, the air pump 604 will drive the air to be delivered to the jet nozzle 4 through the air outlet extension hose 607 to clean the polished area. After cleaning, the motor 608 will drive the main shaft 2 to rotate 90° again, so that the nozzle 8 is aimed at the area to be repaired, and the nozzle 8 will spray paint to form a protective coating to complete the paint repair on the outer wall of the tower.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tower rust removal and paint repair device, comprising a main shell (1), characterized in that, The inner cavity of the main shell (1) is rotatably connected to a main shaft (2). The outer wall of the main shaft (2) is fixedly connected to a sandblasting head (3) for grinding the outer wall of the tower. The sandblasting head (3) sprays high-speed abrasive to remove the rust from the outer wall of the tower. A jet nozzle (4) for cleaning the outer wall of the tower is provided on one side of the sandblasting head (3). The jet nozzle (4) sprays gas to clean the area of ​​the outer wall of the tower after rust removal. A spray nozzle (8) for painting is provided at the end of the jet nozzle (4) away from the sandblasting head (3). The paint is sprayed from the spray nozzle (8) to repair the outer wall of the tower. A silicone baffle (201) for isolation is fixedly connected to the outer wall of the main shaft (2). Both ends of the main shell (1) are fixedly connected to a fixing structure (5) for increasing stability. The fixing structure (5) includes a main connecting block (501), which is rotatably connected to the outer wall of the main shell (1). The inner cavity of the main connecting block (501) is rotatably connected to a secondary connecting block (502). The inner cavity of the secondary connecting block (502) is fixedly installed with a magnetic attraction structure (503) for fixing the main shell (1) to the outer wall of the tower. The magnetic attraction structure (503) generates a strong magnetic force to stably fix the main shell (1) to the outer wall of the tower. The inner cavities of the main connecting block (501) and the secondary connecting block (502) near the tower are slidably connected with a pull rope (512) for pulling the main connecting block (501) and the secondary connecting block (502) to flip towards the tower end. By tightening the pull rope (512), the main connecting block (501) and the secondary connecting block (502) flip and adhere to the outer wall of the tower in sequence.

2. The tower rust removal and paint repair device according to claim 1, characterized in that, The magnetic attraction structure (503) includes a clamping block (504), which is fixedly connected to the inner cavity of the secondary connecting block (502). The inner cavity of the clamping block (504) is rotatably connected to a rubber roller (505) for driving the device to move up and down.

3. The tower rust removal and paint repair device according to claim 2, characterized in that, The fixing structure (5) also includes a secondary shell (507), one end of which is fixedly connected to the outer wall of the main shell (1) near the main shell (1), and the inner cavity of the secondary shell (507) is rotatably connected to a winding rod (508) for driving the pull rope (512) to tighten.

4. The tower rust removal and paint repair device according to claim 3, characterized in that, The secondary shell (507) is fixedly connected to an extension support block (510) at one end away from the main shell (1), and the main connecting block (501) is rotatably connected to the outer wall of the extension support block (510) via a connecting shaft.

5. The tower rust removal and paint repair device according to claim 1, characterized in that, An extension shell (6) is fixedly connected to the top of the main shell (1). A storage tank (601) for storing abrasive is fixedly connected to the inner cavity of the extension shell (6). A liquid storage tank (602) for storing paint is also fixedly connected to the inner cavity of the extension shell (6). A lower groove (603) is provided in the inner cavity of the extension shell (6). An air pump (604) for providing gas to the jet head (4) is fixedly connected to the inner cavity of the lower groove (603).

6. The tower rust removal and paint repair device according to claim 1, characterized in that, The bottom of the main shell (1) is fixedly connected to a receiving bin (7) for receiving the abrasive that rebounds and falls back. The top of the receiving bin (7) is fixedly connected to a silicone baffle (701) for preventing the abrasive from being contaminated. The end of the main shell (1) near the tower is fixedly connected to a telescopic extension tube (702) to increase the sealing effect. The end of the telescopic extension tube (702) away from the main shell (1) is fixedly connected to an airbag ring (703) and cooperates with the airbag ring (703) through the telescopic extension tube (702).

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