A rust removal device for buried carbon steel pipes in sewage treatment plants
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2026-08-14
AI Technical Summary
其中，人工进入管道打磨不仅劳动强度大、作业环境恶劣，且对于管径较小或长度较长的管道，人工难以深入操作，存在效率低下、除锈不彻底的问题；高压水冲洗虽能去除部分疏松锈层，但对于附着紧密的锈蚀效果有限，且会产生大量污水需要后续处理；而传统的简易除锈工具往往难以适应不同管径的碳钢管，在管道内的支撑稳定性差，移动不便，同时除锈过程中产生的废屑易堆积在管道内，既影响除锈效果，又需额外进行清理，增加了作业成本和时间，此外，现有工具大多需要人工推动或牵引移动，难以实现自动化作业，在处理长距离直埋碳钢管时，操作难度极大，难以满足污水处理厂对管道维护的高效性、安全性和彻底性要求
[0018]通过设置的除锈打磨组件和驱动组件的配合，能够实现不同内径碳钢管除锈打磨操作，同时通过设置的支撑移动组件和调节组件的设置，既能保证该装置工作时的稳定性，又能使得该装置适应在不同内径的碳钢管内运动，且通过设置的除尘推进组件则能够及时将除锈打磨产生的废屑快速排出，并利用气流反作用力实现了装置的自动推进，减少了人工干预，显著提升了工作效率，另外通过牵引绳的设置不仅能够保证在完成作业后能够便捷地回收，避免了因卡滞或无法取出而导致的额外操作，而且能够用于控制该装置在碳钢管内的移动速度。
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Figure CN224630460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline maintenance technology, and in particular to a pipeline rust removal device for directly buried carbon steel pipes in sewage treatment plants. Background Technology
[0002] In wastewater treatment plant infrastructure, directly buried carbon steel pipes are widely used for transporting wastewater and related media due to their low cost and high strength. However, because wastewater contains a large amount of corrosive substances, and the direct burial environment easily exposes the inner wall of the pipe to moisture, soil impurities, etc., the inner wall of carbon steel pipes is prone to corrosion after long-term use. Corrosion not only leads to a reduction in the inner diameter of the pipe and a decrease in transport efficiency, but may also pollute the water quality due to rust flakes, and even cause safety hazards such as pipe leaks. Therefore, regular rust removal treatment of the inner wall of carbon steel pipes is an important part of ensuring the stable operation of the wastewater treatment system. Currently, rust removal operations on the inner wall of carbon steel pipes mostly adopt methods such as manual entry into the pipe for grinding, high-pressure water washing, or treatment with simple tools. Manually entering pipes for grinding is not only labor-intensive and involves a harsh working environment, but also presents challenges for smaller diameter or longer pipes, leading to inefficiency and incomplete rust removal. While high-pressure water flushing can remove some loose rust, its effectiveness against tightly adhered rust is limited, and it generates a large amount of wastewater requiring subsequent treatment. Traditional simple rust removal tools are often unsuitable for carbon steel pipes of different diameters, have poor stability within the pipe, and are difficult to move. Furthermore, the waste generated during rust removal tends to accumulate inside the pipe, affecting the rust removal effect and requiring additional cleaning, increasing operating costs and time. In addition, most existing tools require manual pushing or pulling, making automated operation difficult. When dealing with long-distance buried carbon steel pipes, the operation is extremely difficult, failing to meet the requirements of wastewater treatment plants for efficient, safe, and thorough pipe maintenance.
[0003] Therefore, this utility model proposes a pipeline rust removal device for directly buried carbon steel pipes in sewage treatment plants to solve the above-mentioned problems.
[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings mentioned in the background art by proposing a pipeline rust removal device for directly buried carbon steel pipes in sewage treatment plants.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a pipeline rust removal device for directly buried carbon steel pipes in sewage treatment plants, comprising an installation cylinder, two partitions, a shell, a guide cylinder, two rotating rings, a drive assembly, a support and movement assembly, an adjustment assembly, a rust removal and grinding assembly, and a dust removal and propulsion assembly;
[0007] The housing and the guide tube are respectively fixedly installed at both ends of the mounting tube. Both partitions are fixedly installed inside the mounting tube. The support and movement assembly is set on the housing. The adjustment assembly is set inside the mounting tube and the housing and is connected to the support and movement assembly. Both rotating rings are rotatably installed on the outside of the mounting tube. The rust removal and grinding assembly is set on the two rotating rings. The drive assembly is set inside the mounting tube and is connected to the two rotating rings. The dust removal and propulsion assembly is set on the partition on the right side and extends into the guide tube.
[0008] Preferably, the supporting movable assembly includes multiple support rods, multiple mounting seats, and multiple movable wheels. Multiple rotating pins are rotatably mounted on the inner wall of the housing. Support rods are radially fixed on each of the multiple rotating pins. Mounting seats are hinged on each of the multiple support rods. Two movable wheels are rotatably mounted on each of the multiple mounting seats.
[0009] Preferably, the adjustment assembly includes a multi-faceted toothed plate, multiple linkage gears, and an electric cylinder. The electric cylinder is fixedly installed on the partition on the left side, and the multi-faceted toothed plate is fixedly installed on the telescopic end of the electric cylinder. Multiple linkage gears are fixedly sleeved on multiple rotating pins, and multiple linkage gears mesh with the multi-faceted toothed plate.
[0010] Preferably, the rust removal and grinding assembly includes multiple support rods and multiple grinding discs. Multiple support rods are hinged to the outer periphery of both rotating rings. The same grinding disc is hinged to two support rods located in the same plane. The multiple grinding discs are arranged in a circular array based on the axis of the mounting cylinder.
[0011] Preferably, the drive assembly includes a dual-axis motor, two transmission gears, two rotating shafts, and two gear discs. The dual-axis motor is fixedly installed inside the mounting cylinder, which has two mounting ports. Two rotating shafts arranged in parallel to each other are rotatably installed on the inner wall of the mounting cylinder. Transmission gears are fixedly sleeved on both rotating shafts. Gear discs are embedded and fixedly installed on the inner sidewalls of the two rotating rings. The two transmission gears pass through the corresponding mounting ports and mesh with the corresponding gear discs. The two output shafts of the dual-axis motor are connected to the corresponding rotating shafts through universal joints.
[0012] Preferably, a mounting frame is fixedly installed inside the mounting cylinder, a dual-axis motor is fixedly installed on the mounting frame, four support blocks are fixedly installed on the inner wall of the mounting cylinder, and two rotating shafts are respectively rotatably installed on the corresponding two support blocks.
[0013] Preferably, the dust removal propulsion assembly includes a drive motor and fan blades. The drive motor is fixedly installed on the partition on the right side. The output shaft of the drive motor extends into the guide tube and is fixedly fitted with fan blades. The guide tube is arranged in a tapering shape from left to right.
[0014] Preferably, the mounting cylinder has multiple arc-shaped openings, and filter plates are fixedly installed in each of the multiple arc-shaped openings.
[0015] Preferably, a traction rope is fixedly installed on the mounting cylinder.
[0016] Preferably, a plurality of guide rods arranged in parallel to each other are fixedly installed on one inner wall of the mounting cylinder, and the plurality of guide rods are slidably connected to the mounting plate.
[0017] The beneficial effects of this utility model are:
[0018] By coordinating the rust removal and grinding components and the drive components, rust removal and grinding operations on carbon steel pipes of different inner diameters can be achieved. Simultaneously, the inclusion of support and adjustment components ensures the stability of the device during operation and allows it to adapt to movement within carbon steel pipes of varying inner diameters. Furthermore, the dust removal and propulsion components promptly remove waste materials generated during rust removal and grinding, and the use of airflow reaction force enables automatic propulsion, reducing manual intervention and significantly improving work efficiency. Additionally, the traction rope not only ensures convenient retrieval after operation, avoiding additional operations due to jamming or inability to remove the device, but also controls the device's movement speed within the carbon steel pipe. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional structural schematic diagram of a pipeline rust removal device for directly buried carbon steel pipes in a sewage treatment plant, as proposed in this utility model.
[0021] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;
[0022] Figure 3 for Figure 2 The main view;
[0023] Figure 4 This is a structural schematic diagram of the supporting moving component, the adjusting component, and the guide rod portion proposed in this utility model;
[0024] Figure 5 This is a schematic diagram of the supporting ring, rust removal and grinding assembly, and gear disc structure proposed in this utility model;
[0025] Figure 6 This is a schematic diagram of the drive assembly, mounting base, support block, and universal joint portion proposed in this utility model.
[0026] Figure 7 This is a schematic diagram of the drive motor and fan blades proposed in this utility model.
[0027] Figure 8 This is a schematic diagram of the installation cylinder, the guide cylinder, and the filter plate of this utility model.
[0028] In the diagram: 1. Mounting cylinder; 101. Traction rope; 11. Partition plate; 12. Filter plate; 13. Shell; 14. Guide cylinder; 2. Support rod one; 21. Mounting base; 22. Moving wheel; 3. Multi-faceted toothed plate; 31. Linkage gear; 32. Mounting plate; 33. Electric cylinder; 4. Rotating ring; 41. Support rod two; 42. Grinding disc; 5. Gear plate; 51. Transmission gear; 511. Rotating shaft; 52. Dual-shaft motor; 6. Drive motor; 61. Fan blade. Detailed Implementation
[0029] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0030] Reference Figure 1-8 A rust removal device for direct-buried carbon steel pipes in a sewage treatment plant includes an installation cylinder 1, two baffles 11, a shell 13, a guide cylinder 14, and two rotating rings 4.
[0031] The housing 13 and the guide tube 14 are respectively fixedly installed at both ends of the mounting tube 1. Both partitions 11 are fixedly installed inside the mounting tube 1. Multiple rotating pins are rotatably installed on the inner wall of the housing 13. Support rods 2 are radially fixedly installed on each of the multiple rotating pins. Mounting seats 21 are hinged on each of the multiple support rods 21. Two movable wheels 22 are rotatably installed on each of the multiple mounting seats 21. This can provide effective support for the device when the multiple movable wheels 22 are in contact with the inner wall of the carbon steel pipe, and at the same time facilitate the movement of the device inside the carbon steel pipe.
[0032] An electric cylinder 33 is fixedly installed on the partition 11 on the left side. A multi-faceted toothed plate 3 is fixedly installed on the telescopic end of the electric cylinder 33. A linkage gear 31 is fixedly sleeved on multiple rotating pins. The multiple linkage gears 31 mesh with the multi-faceted toothed plate 3. The tilt angle of multiple support rods 2 can be adjusted synchronously as needed, thereby controlling the contact between multiple moving wheels 22 and the inner wall of the carbon steel pipe, and can adapt well to carbon steel pipes of different sizes.
[0033] Both rotating rings 4 are rotatably mounted on the outside of the mounting cylinder 1. Multiple support rods 41 are hinged to the outer periphery of both rotating rings 4. The same grinding disc 42 is hinged to the two support rods 41 located in the same plane. The multiple grinding discs 42 are arranged in a circular array based on the axis of the mounting cylinder 1. When the rotating rings 4 rotate, the grinding discs 42 can be controlled to perform rust removal and grinding operations on the inner wall of the carbon steel pipe. At the same time, the grinding discs 42 can achieve adaptive adjustment according to the inner diameter of the carbon steel pipe.
[0034] A dual-axis motor 52 is fixedly installed inside the mounting cylinder 1. The mounting cylinder 1 has two mounting ports. Two parallel rotating shafts 511 are rotatably mounted on the inner wall of the mounting cylinder 1. A transmission gear 51 is fixedly sleeved on each of the two rotating shafts 511. A gear plate 5 is embedded and fixedly installed on the inner side wall of each of the two rotating rings 4. The two transmission gears 51 pass through the corresponding mounting ports and mesh with the corresponding gear plates 5. The two output shafts of the dual-axis motor 52 are connected to the corresponding rotating shafts 511 through universal joints, which can provide driving force for the two mounting rings.
[0035] A drive motor 6 is fixedly installed on the partition 11 on the right side. The output shaft of the drive motor 6 extends into the guide tube 14 and is fixedly fitted with a fan blade 61. The guide tube 14 is arranged in a tapered shape from left to right, which can prevent the waste generated during rust removal and grinding from accumulating and staying near the grinding disc 42. At the same time, the airflow is used to discharge it in the opposite direction of movement, and the reaction force when pushing the airflow is used to control the device to move along the carbon steel pipe. The airflow speed difference between the inlet and outlet can be used to alleviate the situation where the filter plate 12 is easily blocked by debris.
[0036] In this embodiment, in order to provide stable support for the dual-axis motor 52 and the rotating shaft 511, a mounting frame is fixedly installed inside the mounting cylinder 1, the dual-axis motor 52 is fixedly installed on the mounting frame, and four support blocks are fixedly installed on the inner wall of the mounting cylinder 1. The two rotating shafts 511 are respectively rotatably installed on the corresponding two support blocks.
[0037] In this embodiment, in order to allow air outside the mounting cylinder 1 to enter the mounting cylinder 1 when the drive motor 6 controls the fan blade 61 to rotate rapidly, and to allow it to be discharged backward through the guide tube 14, while also preventing debris generated during the rust removal and grinding process from being directly sucked into the mounting cylinder 1, the mounting cylinder 1 is provided with multiple arc-shaped openings, and filter plates 12 are fixedly installed in each of the multiple arc-shaped openings.
[0038] In this embodiment, in order to facilitate the return of the device from the carbon steel pipe after the rust removal and grinding process is completed, a traction rope 101 is fixedly installed on the mounting cylinder 1, which also facilitates the control of the device's travel speed inside the carbon steel pipe.
[0039] In this embodiment, in order to provide a stable guide for the mounting plate 32, a plurality of guide rods arranged in parallel to each other are fixedly installed on one side of the inner wall of the mounting cylinder 1, and the plurality of guide rods are slidably connected to the mounting plate 32.
[0040] The circuits, electronic components, and module mechanisms involved all employ existing technologies, which can be fully implemented by those skilled in the art, and need no further explanation. The content protected by this application does not involve any improvement to the software, circuits, or methods.
[0041] Working principle: In use, the device is first placed inside the carbon steel pipe to be treated and the power is turned on. The electric cylinder 33 drives the multi-faceted toothed plate 3 to move, causing the linkage gear 31 to drive the rotating pin to rotate, thereby adjusting the tilt angle of the support rod 2. This process allows the moving wheel 22 on the mounting base 21 to fit tightly against the inner wall of the carbon steel pipe, providing stable support for the device and ensuring its smooth movement inside the carbon steel pipe. Subsequently, the dual-shaft motor 52 is started, and through the meshing transmission gear 51 and the toothed disc 5, the two rotating rings 4 are driven to rotate synchronously, causing the support rod 41 on the rotating ring 4 to drive the grinding disc 42. The device performs rust removal and grinding on the inner wall of the carbon steel pipe. The grinding disc 42 can automatically adjust its position according to the inner diameter of the pipe to ensure uniform rust removal effect. At the same time, the drive motor 6 drives the fan blade 61 to rotate at high speed, generating a strong airflow to quickly discharge the waste generated during the rust removal process, avoiding accumulation and affecting work efficiency. Under the push of the airflow reaction force, the device automatically moves forward along the axial direction of the carbon steel pipe to complete the rust removal work of the entire pipe section. The traction rope 101 can not only be used to control the moving speed of the device inside the carbon steel pipe, but also can smoothly pull the device back to its original position after the operation is completed.
[0042] The above provides a detailed description of a rust removal device for directly buried carbon steel pipes in sewage treatment plants, as provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core idea of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A pipeline rust removal device for directly buried carbon steel pipe of a sewage treatment plant, characterized in that, It includes an installation cylinder (1), two baffles (11), a housing (13), a guide tube (14), two rotating rings (4), a drive assembly, a support and movement assembly, an adjustment assembly, a rust removal and grinding assembly, and a dust removal and propulsion assembly; The housing (13) and the guide tube (14) are respectively fixedly installed at both ends of the mounting tube (1). The two partitions (11) are fixedly installed inside the mounting tube (1). The support moving component is set on the housing (13). The adjustment component is set inside the mounting tube (1) and the housing (13) and connected to the support moving component. The two rotating rings (4) are rotatably installed on the outside of the mounting tube (1). The rust removal and grinding component is set on the two rotating rings (4). The drive component is set inside the mounting tube (1) and connected to the two rotating rings (4). The dust removal and propulsion component is set on the partition (11) on the right side and extends into the guide tube (14).
2. A pipeline rust removal device for directly buried carbon steel pipe of sewage treatment plant according to claim 1, characterized in that: The supporting moving assembly includes multiple support rods (2), multiple mounting seats (21) and multiple moving wheels (22). Multiple rotating pins are rotatably mounted on the inner wall of the housing (13). Support rods (2) are radially fixed on each of the multiple rotating pins. Mounting seats (21) are hinged on each of the multiple support rods (2). Two moving wheels (22) are rotatably mounted on each of the multiple mounting seats (21).
3. A pipeline rust removal device for directly buried carbon steel pipe of sewage treatment plant according to claim 2, characterized in that: The adjustment assembly includes a multi-faceted toothed plate (3), multiple linkage gears (31) and an electric cylinder (33). The electric cylinder (33) is fixedly installed on the partition (11) on the left side. The multi-faceted toothed plate (3) is fixedly installed on the telescopic end of the electric cylinder (33). Multiple linkage gears (31) are fixedly sleeved on multiple rotating pins. The multiple linkage gears (31) mesh with the multi-faceted toothed plate (3).
4. The pipeline rust removal device for directly buried carbon steel pipe of sewage treatment plant according to claim 1, characterized in that: The rust removal and polishing assembly includes multiple support rods (41) and multiple polishing discs (42). Multiple support rods (41) are hinged to the outer periphery of the two rotating rings (4). The same polishing disc (42) is hinged to the two support rods (41) located in the same plane. The multiple polishing discs (42) are arranged in a circular array based on the axis of the mounting cylinder (1).
5. A device for removing rust from a carbon steel pipeline directly buried in a sewage treatment plant according to claim 1, characterized in that: The drive assembly includes a dual-axis motor (52), two transmission gears (51), two rotating shafts (511), and two gear discs (5). The dual-axis motor (52) is fixedly installed inside the mounting cylinder (1). Two mounting ports are opened on the mounting cylinder (1). Two rotating shafts (511) arranged in parallel are rotatably installed on the inner wall of the mounting cylinder (1). Transmission gears (51) are fixedly sleeved on both rotating shafts (511). Gear discs (5) are embedded and fixedly installed on the inner side walls of the two rotating rings (4). The two transmission gears (51) pass through the corresponding mounting ports and mesh with the corresponding gear discs (5). The two output shafts of the dual-axis motor (52) are connected to the corresponding rotating shafts (511) through universal joints.
6. A pipeline rust removal device for directly buried carbon steel pipe of sewage treatment plant according to claim 5, characterized in that: An installation frame is fixedly installed inside the installation cylinder (1), a dual-axis motor (52) is fixedly installed on the installation frame, and four support blocks are fixedly installed on the inner wall of the installation cylinder (1). Two rotating shafts (511) are respectively rotatably installed on the corresponding two support blocks.
7. A pipeline rust removal device for directly buried carbon steel pipe of sewage treatment plant according to claim 1, characterized in that: The dust removal propulsion assembly includes a drive motor (6) and a fan blade (61). The drive motor (6) is fixedly installed on the partition (11) on the right side. The output shaft of the drive motor (6) extends into the guide tube (14) and is fixedly fitted with the fan blade (61). The guide tube (14) is arranged in a tapered shape from left to right.
8. A pipeline rust removal device for directly buried carbon steel pipe of sewage treatment plant according to claim 1, characterized in that: The mounting cylinder (1) has multiple arc-shaped openings, and filter plates (12) are fixedly installed in each of the multiple arc-shaped openings.
9. A pipeline rust removal device for directly buried carbon steel pipe of sewage treatment plant according to claim 1, characterized in that: A traction rope (101) is fixedly installed on the mounting cylinder (1).
10. A pipeline rust removal device for directly buried carbon steel pipe of sewage treatment plant according to claim 1, characterized in that: Multiple guide rods arranged in parallel to each other are fixedly installed on one inner wall of the mounting cylinder (1), and the multiple guide rods are slidably connected to the mounting plate (32).