Pipeline inner wall rust removal device

By designing a rust removal device for the inner wall of pipelines, and using a combination of rust removal brushes and negative pressure fans, automated rust removal of the inner wall of pipelines has been achieved. This solves the problems of low rust removal efficiency, significant safety hazards, and untimely rust dust removal in existing technologies, thereby improving cleaning efficiency and safety.

CN224059493UActive Publication Date: 2026-03-31MCC TIANGONG GROUP TIANJIN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing technologies for rust removal on the inner walls of pipelines suffer from problems such as long construction cycles, high operational intensity, low efficiency, significant safety hazards, and inability to clean rust dust in a timely manner, which are particularly evident in small-diameter and long pipelines.

Method used

A rust removal device for the inner wall of a pipe was designed, including a rust removal mechanism and a collection mechanism. The rust removal mechanism moves along the inner wall of the pipe by means of a rust removal brush and is connected to the collection mechanism through a dust suction pipe. The negative pressure fan is used to adsorb and store rust dust in a timely manner, thereby achieving automated rust removal.

Benefits of technology

It achieves automatic rust removal of the inner wall of pipes, reduces harm to the human body, improves cleaning efficiency, saves time and costs, is applicable to pipes of different specifications, and avoids environmental pollution.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224059493U_ABST
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Abstract

The utility model provides a pipeline inner wall derusting device which comprises a derusting mechanism, a collecting mechanism and a dust collection pipeline, the derusting mechanism is arranged in a pipeline and can move along the pipeline inner wall, a derusting brush is arranged on the derusting mechanism, the collecting mechanism is arranged outside the pipeline, and the dust collection pipeline is arranged on the collecting mechanism. One end of the dust collection pipeline is arranged on the rust removal mechanism, and the other end of the dust collection pipeline is arranged on the collection mechanism. The pipeline inner wall rust removal device has the advantages that manual work is replaced, automatic rust removal of the inner wall of a pipeline is achieved, damage to the human body is reduced, the cleaning effect is guaranteed, production efficiency is improved, time cost is saved, and other auxiliary equipment is not needed. And during cleaning, the cleaned rust dust can be timely adsorbed and stored in a centralized manner, so that the pollution to the environment is avoided, and the cleaning efficiency is further improved. The device can be suitable for pipelines of different specifications and is wide in application range.
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Description

Technical Field

[0001] This utility model belongs to the field of pipeline rust removal technology, and in particular relates to a pipeline inner wall rust removal device. Background Technology

[0002] After use, chemical plant pipelines develop a layer of dirt and rust on their inner walls. During equipment maintenance, these layers need to be removed. Currently, manual handheld rust removers are used to remove the dirt and rust. However, this method has the following drawbacks:

[0003] 1. The construction period is long, the labor intensity of construction workers is high, the efficiency is extremely low, the time cost is high, and other auxiliary equipment is also required to help rotate the pipes.

[0004] 2. The construction environment is harsh. After use, the inner walls of the pipes contain chemical substances and rust. When removing rust, rust dust is released into the air, and construction workers will inhale the pollutants, which is extremely harmful to them.

[0005] 3. Currently, existing old chemical pipelines with large diameters can be cleaned and rusted manually, but some pipelines with small diameters cannot be cleaned manually.

[0006] 4. For some long pipes, traditional rust removal machines have a limited range of rust removal capabilities, and the pipes need to be hoisted onto the rust removal machine before rust removal can be performed, resulting in relatively low overall work efficiency.

[0007] 5. Existing rust removal machines cannot immediately remove the brushed rust and dust after removing rust from chemical pipelines, often requiring subsequent cleaning of the rust and dust inside the pipelines. Utility Model Content

[0008] To solve the above-mentioned technical problems, this utility model provides a pipe inner wall rust removal device, which effectively solves the technical problems of difficult pipe inner wall rust removal, cumbersome operation, low work efficiency, safety hazards, and inability to collect and clean rust dust in a timely manner, thus overcoming the shortcomings of the prior art.

[0009] The technical solution adopted in this utility model is: a pipe inner wall rust removal device, comprising:

[0010] A rust removal mechanism is installed inside the pipe and can move along the inner wall of the pipe. The rust removal mechanism is equipped with a rust removal brush.

[0011] A collection mechanism is located outside the pipe;

[0012] The dust suction pipe is installed on the rust removal mechanism at one end and on the collection mechanism at the other end.

[0013] Furthermore, the rust removal mechanism includes,

[0014] The box body has a movable component at the bottom, which can drive the box body to move along the inner wall of the pipe, and the suction end of the suction pipe is located below the box body;

[0015] A first drive motor is disposed inside the housing. The first drive motor is provided with a mounting shaft, which is disposed outside the housing. The mounting shaft is provided with the rust removal brush.

[0016] Furthermore, the mounting shaft is provided with a mounting plate, which is arranged along the length of the mounting shaft, and the mounting plate is provided with the rust removal brush.

[0017] Furthermore, a plurality of connecting rods are provided between the mounting shaft and the mounting plate, and the plurality of connecting rods are arranged along the length of the mounting shaft.

[0018] Furthermore, the moving component includes,

[0019] The second drive motor is located below the first drive motor;

[0020] A drive shaft is mounted on the second drive motor;

[0021] The rollers are located on the outside of the housing and are connected to the drive shaft.

[0022] Furthermore, telescopic rods are provided on both sides of the interior of the box, and the telescopic rods extend to the outside of the box and are provided with abutment plates, which can abut against the inner wall of the pipe.

[0023] Furthermore, the collection mechanism includes,

[0024] The base has casters at the bottom;

[0025] The negative pressure box is set on the base and has a collection drawer inside, which is connected to the vacuum pipe.

[0026] A negative pressure fan is installed on one side of the negative pressure box and connected to the negative pressure box.

[0027] Furthermore, a filter plate is provided inside the negative pressure box on the side near the negative pressure fan, and the filter plate is located on the outside of the collection drawer.

[0028] Furthermore, a power supply box is provided above the negative pressure box, which is used to supply power to the rust removal mechanism and the collection mechanism.

[0029] The advantages and positive effects of this utility model are as follows: By adopting the above-mentioned technical solution, automatic rust removal of the inner wall of the pipe is achieved, replacing manual labor, reducing harm to the human body, ensuring cleaning effect, improving production efficiency, saving time costs, and eliminating the need for other auxiliary equipment. During cleaning, the removed rust dust can be absorbed and stored in a concentrated manner, avoiding environmental pollution and further improving cleaning efficiency. It is applicable to pipes of different specifications and has a wide range of applications. Attached Figure Description

[0030] Figure 1 This is an external schematic diagram of a pipe inner wall rust removal device according to an embodiment of this utility model.

[0031] Figure 2 This is a schematic diagram of the internal structure of a pipe rust removal device according to an embodiment of this utility model.

[0032] Figure 3 This is a schematic diagram of the internal structure of the rust removal mechanism box of a pipe inner wall rust removal device according to an embodiment of this utility model.

[0033] In the picture:

[0034] 10. Rust removal mechanism; 11. Housing; 111. Partition plate

[0035] 12. Rust removal brush; 13. First drive motor; 14. Mounting shaft

[0036] 15. Mounting plate; 16. Connecting rod; 17. Moving assembly

[0037] 171. Second drive motor; 172. Drive shaft; 173. Roller

[0038] 18. Telescopic pole 19. Support plate 20. Collection mechanism

[0039] 21. Base; 22. Casters; 23. Push handle

[0040] 24. Negative pressure box 25. Collection drawer 26. Negative pressure fan

[0041] 27. Filter plate; 30. Dust suction pipe; 31. Fixing clamp.

[0042] 32. Dust hood; 40. Power supply box; 50. Controller

[0043] 60. Connecting wire; 70. Pipe Detailed Implementation

[0044] This utility model provides a pipe inner wall rust removal device. The embodiments of this utility model are described below with reference to the accompanying drawings.

[0045] In the description of the embodiments of this utility model, it should be understood that the terms "top," "bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that unless otherwise expressly specified and limited, the terms "set" and "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model through specific circumstances.

[0046] like Figure 1 , Figure 2 and Figure 3 As shown in the figure, an embodiment of this utility model discloses a rust removal device for the inner wall of a pipe, comprising a rust removal mechanism 10 and a collection mechanism 20. The rust removal mechanism 10 is disposed inside the pipe 70 and can move along the inner wall of the pipe 70. The rust removal mechanism 10 is equipped with a rust removal brush 12, which automatically cleans the inner wall of the pipe 70 during movement, making operation simple and saving time and effort. The collection mechanism 20 is disposed outside the pipe 70. A suction pipe 30 is connected between the rust removal mechanism 10 and the collection mechanism 20, with one end of the suction pipe 30 attached to the rust removal mechanism 10 and the other end attached to the collection mechanism 20. The suction pipe 30 can promptly absorb the cleaned rust dust into the collection mechanism 20, avoiding environmental pollution.

[0047] Specifically, the rust removal mechanism 10 includes a housing 11 and a first drive motor 13. A moving component 17 is provided at the bottom of the housing 11, which can move the housing 11 along the inner wall of the pipe 70. The suction end of the suction pipe 30 is located below the housing 11. The first drive motor 13 is located inside the housing 11, and a mounting shaft 14 is provided on the first drive motor 13. The mounting shaft 14 is located outside the housing 11, and a rust removal brush 12 is provided on the mounting shaft 14. In this embodiment, a partition 111 is fixedly installed inside the housing 11. The first drive motor 13 is installed on the upper part of the partition 111. The output shaft of the first drive motor 13 is arranged along the length of the pipe 70, and the mounting shaft 14 is fixed along the length of the pipe 70 on the output shaft of the first drive motor 13. The first drive motor 13 drives the mounting shaft 14 to rotate, thereby driving the rust removal brush 12 to rotate circumferentially along the pipe 70, performing a comprehensive cleaning of the circumference of the pipe 70. A moving component 17 is installed below the partition 111 to move the entire housing 11 along the inner wall of the pipe 70. The suction pipe 30 is fixed at the bottom of the housing 11 using a fixing hoop 31. The suction end of the suction pipe 30 is located close to the rust removal brush 12. The suction end of the suction pipe 30 is fixed with a horn-shaped suction cover 32, which is more conducive to adsorbing rust dust.

[0048] Specifically, to facilitate the installation of the rust-removing brush 12, a mounting plate 15 is provided on the mounting shaft 14. The mounting plate 15 is set along the length of the mounting shaft 14, and the rust-removing brush 12 is installed on the mounting plate 15. The specific number of rust-removing brushes 12 is not limited. In this embodiment, to ensure the cleaning effect, two rust-removing brushes 12 are symmetrically fixed on the mounting shaft 14. The rust-removing brushes 12 are set as long strip steel brushes and are fixed on the mounting plate 15 along the length of the pipe 70. The rust-removing brushes 12 can contact the inner wall of the pipe.

[0049] Specifically, to ensure the rust-removing brush 12 is securely installed, multiple connecting rods 16 are fixed between the mounting shaft 14 and the mounting plate 15. The specific number of connecting rods 16 is not limited. The multiple connecting rods 16 are arranged along the length of the mounting shaft 14. In this embodiment, the connecting rods 16 are perpendicular to the mounting shaft 14 and the mounting plate 15, with one end fixedly connected to the mounting shaft 14 and the other end fixedly connected to the mounting plate 15. The multiple connecting rods 16 are arranged at equal intervals along the length of the mounting shaft 14.

[0050] Specifically, the moving assembly 17 includes a second drive motor 171, a transmission shaft 172, and a roller 173. The second drive motor 171 is located below the first drive motor 13, the transmission shaft 172 is located on the second drive motor 171, and the roller 173 is located on the outside of the housing 11 and connected to the transmission shaft 172. In this embodiment, two sets of moving assemblies 17 are provided and installed below the partition 111. The second drive motor 171 is a dual-axis motor, with the transmission shaft 172 fixedly installed at both ends of the second drive motor 171. The transmission shaft 172 is set perpendicular to the length of the pipe 70, and one end extends to the outside of the housing 11 where the roller 173 is fixedly installed. The roller 173 contacts the inner wall of the pipe 70. The second drive motor 171 can drive the roller 173 to roll along the inner wall of the pipe 70, thereby driving the entire housing 11 to move along the inner wall of the pipe 70 to clean the entire pipe 70.

[0051] Preferably, to prevent the rust-removing brush 12 from failing to thoroughly clean a certain location inside the pipe 70 due to the movement of the housing 11, thus affecting the cleaning effect, telescopic rods 18 are provided on both sides inside the housing 11. The telescopic rods 18 extend to the outside of the housing 11 and are fitted with abutment plates 19, which can abut against the inner wall of the pipe 70. In this embodiment, above the partition 111, telescopic rods 18 are symmetrically installed on both sides of the first drive motor 13. The telescopic rods 18 are electric telescopic rods, perpendicular to the length of the pipe 70. The movable end of the telescopic rod 18 extends to the outside of the housing 11 and is fixed with abutment plates 19. The side of the abutment plate 19 closest to the pipe 70 is arc-shaped, which is more conducive to abutting against the inner wall of the pipe 70. When cleaning a certain location, the telescopic rod 18 extends, causing the abutment plate 19 to abut against the inner wall of the pipe 70, allowing the rust-removing brush 12 to thoroughly clean the inner wall of the pipe 70 at that location. After cleaning, the telescopic rod 18 shortens, causing the abutment 19 to detach from the inner wall of the pipe 70, without affecting the movement of the entire box 11.

[0052] Specifically, the collection mechanism 20 includes a base 21, a negative pressure box 24, and a negative pressure fan 26. For ease of movement, casters 22 are installed on the bottom of the base 21. The negative pressure box 24 is fixed to the base 21 and has a collection drawer 25 inside, connected to the suction pipe 30. The negative pressure fan 26 is located on one side of the negative pressure box 24 and connected to it. In this embodiment, to facilitate pushing the entire collection mechanism 20, a push handle 23 is fixedly installed on the side of the base 21 away from the rust removal mechanism 10. After the rust removal device is used, it can be placed on the base 21 and stored together with the collection mechanism 20. A pull-out opening matching the collection drawer 25 is provided on one side of the negative pressure box 24, and a pull-out handle is fixed to the outside of the collection drawer 25, making it easy to remove the collection drawer 25 from the negative pressure box 24 for cleaning. The negative pressure fan 26 is connected to the negative pressure box 24 and uses the suction pipe 30 to draw the cleaned rust dust into the collection drawer 25.

[0053] Specifically, in order to prevent rust and dust from entering the negative pressure fan 26 and affecting its service life, a filter plate 27 is fixed inside the negative pressure box 24 on the side near the negative pressure fan 26. The filter plate 27 is located on the outside of the collection drawer 25.

[0054] Preferably, a power supply box 40 is provided above the negative pressure box 24. The power supply box 40 contains a battery to power the first drive motor 13, the second drive motor 171, and the telescopic rod 18 in the rust removal mechanism 10, as well as the negative pressure fan 26 of the collection mechanism 20, ensuring the normal operation of the cleaning work. In this embodiment, a controller 50 is fixed above the power supply box 40, and a connecting cable 60 is provided on one side of the controller 50. The first drive motor 13, the second drive motor 171, and the telescopic rod 18 are all electrically connected to the controller 50 and the power supply box 40 via the connecting cable 60. To accommodate pipes 70 of different lengths, both the connecting cable 60 and the suction pipe 30 need to be of relatively long length.

[0055] A method for removing rust from the inner wall of a pipe using the pipe rust removal device described above includes the following steps:

[0056] The rust removal mechanism 10 is placed at one end of the pipe 70. The controller 50 activates the first drive motor 13, which drives the rust removal brush 12 to rotate circumferentially along the inner wall of the pipe 70 for cleaning. During the cleaning process, the controller 50 activates the telescopic rod 18, extending it so that the abutment plate 19 abuts against the inner wall of the pipe 70, ensuring the stability of the rust removal mechanism 10. After the end of the pipe 70 is cleaned, the controller 50 controls the telescopic rod 18 to retract, disengaging the abutment plate 19 from the inner wall of the pipe 70. The controller 50 then activates the second drive motor 171, which drives the roller 173 to roll along the inner wall of the pipe 70 via the transmission shaft 172, moving the entire rust removal device to the next position for cleaning until the entire pipe 70 is cleaned.

[0057] During the cleaning process, the rust removal mechanism 10 drives the suction pipe 30 into the pipe 70. After the dirt or rust on the inner wall of the pipe 70 is removed, the controller 50 turns on the negative pressure fan 26 to expel the air in the negative pressure box 24, creating negative pressure. This causes the suction pipe 30 to generate suction, which promptly absorbs and collects the cleaned rust dust into the collection drawer 25 through the dust collection hood 32, preventing the cleaned rust dust from remaining inside the pipe 70. The rust dust collected in the collection drawer 25 needs to be cleaned regularly.

[0058] The advantages and positive effects of this utility model are:

[0059] 1. It replaces manual labor, realizes automatic rust removal of the inner wall of pipes, reduces harm to the human body, ensures cleaning effect, improves production efficiency, saves time and costs, and requires no other auxiliary equipment.

[0060] 2. During cleaning, the removed rust and dust can be absorbed and stored in a concentrated manner, which not only avoids environmental pollution but also further improves cleaning efficiency.

[0061] 3. It is applicable to pipes of different specifications and has a wide range of applications.

[0062] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A pipe inner wall rust removing device characterized by, The utility model relates to a pipeline rust removal device, which comprises: a rust removal mechanism arranged inside a pipeline and movable along the inner wall of the pipeline, the rust removal mechanism being provided with a rust removal brush; a collection mechanism arranged outside the pipeline; a dust suction pipeline, one end of which is arranged on the rust removal mechanism and the other end of which is arranged on the collection mechanism.

2. A pipe inner wall rust removal device according to claim 1, characterized in that: The rust removal mechanism comprises: a box body provided with a moving assembly at the bottom, the moving assembly being capable of moving the box body along the inner wall of the pipeline, the dust suction end of the dust suction pipeline being arranged below the box body; a first driving motor arranged in the box body, the first driving motor being provided with a mounting shaft arranged outside the box body, the mounting shaft being provided with the rust removal brush.

3. A pipe internal wall rust removal device according to claim 2, characterized in that: The mounting shaft is provided with a mounting plate arranged along the length of the mounting shaft, the mounting plate being provided with the rust removal brush.

4. A pipe internal wall rust removal device according to claim 3, characterized in that: A plurality of connecting rods are arranged between the mounting shaft and the mounting plate.

5. A device for removing rust from the inside of a pipe according to any one of claims 2-4, characterized in that: The moving assembly comprises: a second driving motor arranged below the first driving motor; a transmission shaft arranged on the second driving motor; rollers arranged outside the box body and connected to the transmission shaft.

6. A pipe internal wall rust removal device according to claim 5, characterized in that: Both sides of the box body are provided with telescopic rods, the telescopic rods extending to the outside of the box body and being provided with abutting plates, the abutting plates being capable of abutting against the inner wall of the pipeline.

7. A device for removing rust from the inside of a pipe according to any one of claims 1 to 4 and 6, characterized in that: The collection mechanism comprises: a base provided with universal wheels at the bottom; a negative pressure box arranged on the base, the inside of the negative pressure box being provided with a collection drawer connected to the dust suction pipeline; a negative pressure fan arranged on one side of the negative pressure box and connected to the negative pressure box.

8. A pipe internal wall rust removal device according to claim 7, characterized in that: The negative pressure box is provided with a filter plate near the side of the negative pressure fan, the filter plate being arranged outside the collection drawer.

9. A pipe internal wall rust removal device according to claim 7, characterized in that: The negative pressure box is provided with a power supply box above, the power supply box being used for supplying power to the rust removal mechanism and the collection mechanism.