A pipe cleaning device

Abstract

This invention relates to the field of pipeline cleaning technology, specifically to a pipeline cleaning device for cleaning pipelines undergoing penetration testing, reducing the workload of testing personnel. It includes an installation cylinder with at least two installation supports arranged circumferentially along the cylinder. Each installation support has an arc-shaped cleaning plate at its end furthest from the cylinder. The outer circumferential surface of the cleaning plate is an arc-shaped cleaning surface, and a cleaning part for contacting the inner surface of the pipeline is provided on the cleaning surface. The installation cylinder is equipped with a drive mechanism for moving the installation cylinder axially along the pipeline. This invention, by arranging installation supports circumferentially on the installation cylinder, and installing cleaning plates on the supports with cleaning parts on the cleaning plates, achieves cleaning of the inner surface of the pipeline during use. The drive mechanism drives the installation cylinder to move axially along the pipeline, thus cleaning the inner surface of the pipeline.

Description

Technical Field

[0001] This invention relates to the field of pipeline cleaning technology, specifically to a pipeline cleaning device. Background Technology

[0002] Currently, 100% penetration testing of the inner and outer surfaces is mainly conducted on two types of pipes: one with an inner diameter of φ550mm and a length of approximately 8000mm; and the other with an inner diameter of φ550mm and a length ranging from 2000mm to 9000mm.

[0003] The commonly used technique is the solvent-removal dyeing method, which involves manual pre-cleaning and penetrant removal by inspectors inside the borehole. The process involves spraying a cleaning solvent onto a suitable non-woven fabric or special paper and then removing it piece by piece from the workpiece surface. Inspectors crawl into the borehole to perform the operation. Considering human anatomy, an adult's shoulder width is approximately 500mm, only slightly smaller than a small-diameter borehole. Even inside large pipes, the ease of operation is severely limited. The inspector moves forward by relying on abdominal strength and elbow support, resulting in low efficiency and extremely high labor intensity. The penetrant testing cleaning process has extremely stringent requirements for cleaning effectiveness; it cannot be over-cleaned or under-cleaned. To achieve the desired cleaning effect, the entire process is extremely slow and poses certain safety hazards, primarily due to the flammability of some components of the cleaning agent in its atomized state. High protective measures are required, and open flames must be strictly prohibited. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a pipeline cleaning device for cleaning pipelines used in penetration testing, thereby reducing the labor intensity of testing personnel.

[0005] The technical solution adopted by the present invention to solve its technical problem is a pipeline cleaning device, including an installation cylinder, at least two installation brackets are arranged along the circumference of the installation cylinder, each installation bracket is provided with an arc-shaped cleaning plate at the end away from the installation cylinder, the outer circumferential surface of the cleaning plate is an arc-shaped cleaning surface, the cleaning surface is provided with a cleaning part for abutting against the inner surface of the pipeline, and the installation cylinder is provided with a driving mechanism for driving the installation cylinder to move along the pipeline axial direction.

[0006] Furthermore, the mounting bracket includes a first connecting rod, a second connecting rod, and a sleeve. The first connecting rod and the second connecting rod are arranged crosswise and hinged. The sleeve is fitted onto the mounting cylinder and can move along the axial direction of the mounting cylinder. The lower end of the first connecting rod is hinged to the sleeve, and the lower end of the second connecting rod is hinged to the mounting cylinder. A first guide member is provided on the inner circumferential surface of the cleaning plate, which is arranged along the axial direction of the mounting cylinder. A second guide member is provided on the cleaning plate, which cooperates with the first guide member and can move relative to the first guide member. A locking component is provided on the sleeve for locking the sleeve. The upper end of the first connecting rod is hinged to the second guide member, and a hinged connecting seat is provided at the end of the first guide member. The upper end of the second connecting rod is hinged to the hinged connecting seat.

[0007] Furthermore, the first guide is a T-shaped block, and the second guide is a guide block with a T-shaped groove.

[0008] Furthermore, limit plates are provided at both ends of the first guide member, and the limit plates are fixedly connected to the inner surface of the cleaning plate.

[0009] Furthermore, wing plates are provided on both sides of the first guide member, and the opposing surfaces of the two wing plates are inclined guide surfaces. The guide block abuts against the two guide surfaces respectively. The distance between the two guide surfaces near the upper end of the first connecting rod is smaller than the distance between the two guide surfaces away from the upper end of the first connecting rod. A third guide member is provided on the inner wall of the limiting plate, and a fourth guide member is provided on the side wall of the wing plate opposite to the limiting plate. A cleaning cloth is provided on the outer surface of the wing plate.

[0010] Furthermore, a return spring is provided between the T-block and the guide surface. One end of the return spring is fixedly connected to the side wall of the T-block, and the other end is fixedly connected to the guide surface. The return spring is located on both sides of the guide block.

[0011] Furthermore, the locking assembly includes a threaded hole on the sleeve, in which a limit bolt is disposed, and the end of the limit bolt abuts against the outer surface of the mounting sleeve.

[0012] Furthermore, the drive mechanism includes a mounting base disposed on the outside of the pipe, a take-up reel rotatably connected to the mounting base, and the take-up reel and the mounting cylinder are connected by a connecting rope.

[0013] Furthermore, a fan is provided at the end of the mounting cylinder.

[0014] Furthermore, the cleaning part is cleaning paper or non-woven fabric.

[0015] The beneficial effects of the present invention are as follows: by setting an installation bracket around the circumference of the installation cylinder, setting a cleaning plate on the installation bracket, and setting a cleaning part on the cleaning plate, the cleaning part abuts against the inner surface of the pipe during use, and the driving mechanism drives the installation cylinder to move along the axial direction of the pipe, the inner surface of the pipe can be cleaned. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram illustrating the process of using the present invention;

[0018] Figure 3 This is a schematic diagram showing the connection between the cleaning plate and the wing plate;

[0019] Figure 4 This is a schematic diagram showing the wing plate deployed relative to the cleaning plate;

[0020] Figure 5 yes Figure 4 A diagram showing the installation of the cleaning unit and cleaning cloth.

[0021] Reference numerals: 1-Mounting cylinder; 2-Mounting bracket; 3-Cleaning plate; 4-Cleaning surface; 5-Cleaning part; 6-Drive mechanism; 601-Mounting seat; 602-Take-up reel; 603-Connecting rope; 7-First connecting rod; 8-Second connecting rod; 9-Sleeve; 10-First guide; 11-Second guide; 12-Hinged connecting seat; 13-Limiting plate; 14-Wing plate; 15-Guide surface; 16-Third guide; 17-Fourth guide; 18-Reset spring; 19-Limiting bolt; 20-Fan; 21-Cleaning cloth; 22-Pipe. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] like Figures 1-5As shown, the present invention provides a pipe cleaning device, including a mounting cylinder 1, at least two mounting brackets 2 arranged along the circumference of the mounting cylinder 1, an arc-shaped cleaning plate 3 arranged at the end of each mounting bracket 2 away from the mounting cylinder 1, the outer circumferential surface of the cleaning plate 3 being an arc-shaped cleaning surface 4, a cleaning part 5 for abutting against the inner surface of the pipe 22 being provided on the cleaning surface 4, and a driving mechanism 6 for driving the mounting cylinder 1 to move axially along the pipe 22 being provided on the mounting cylinder 1. The mounting cylinder 1 is coaxially arranged with the pipe 22. The mounting bracket 2 can be fixedly connected to the mounting cylinder 1. When there are two mounting brackets 2, they are arranged at a 180° interval. When there are three mounting brackets 2, they are arranged at a 120° interval. The mounting bracket 2 is used to install the cleaning plate 3. The outer circumference of the cleaning plate 3 is an arc-shaped cleaning surface 4. Each cleaning surface 4 abuts against the inner surface of the pipe 22 during use, and the multiple cleaning surfaces 4 form a ring to ensure full coverage of the inner surface of the pipe 22. The cleaning part 5 is a cleaning paper or non-woven fabric soaked in cleaning fluid. The cleaning part 5 can be connected to the cleaning plate 3 by bolts or adhesive. The driving mechanism 6 can be a driving trolley. The driving trolley is connected to the mounting cylinder 1 by a pull rope. The driving trolley moves along the pipe 22, which drives the mounting cylinder 1 to move along the pipe 22, thereby realizing the cleaning of the inside of the pipe 22 by the cleaning part 5.

[0024] To further enhance the applicability of the device, see [link to further information]. Figure 1 and Figure 3 The mounting bracket 2 includes a first connecting rod 7, a second connecting rod 8, and a sleeve 9. The first connecting rod 7 and the second connecting rod 8 are arranged crosswise and hinged. The sleeve 9 is sleeved on the mounting cylinder 1 and can move along the axial direction of the mounting cylinder 1. The lower end of the first connecting rod 7 is hinged to the sleeve 9, and the lower end of the second connecting rod 8 is hinged to the mounting cylinder 1. A first guide member 10 is provided on the inner circumferential surface of the cleaning plate 3, which is arranged along the axial direction of the mounting cylinder 1. A second guide member 11 is provided on the cleaning plate 3, which cooperates with the first guide member 10. The second guide member 11 can move relative to the first guide member 10. A locking component is provided on the sleeve 9 to lock the sleeve 9. The upper end of the first connecting rod 7 is hinged to the second guide member 11. A hinged connecting seat 12 is provided at the end of the first guide member 10, and the upper end of the second connecting rod 8 is hinged to the hinged connecting seat 12.

[0025] The first connecting rod 7 and the second connecting rod 8 are cross-connected by rivets. The first connecting rod 7 and the second connecting rod 8 are identical in shape and size, both being elongated. Hinge holes are drilled at the center and both ends of each connecting rod. The two connecting rods are connected by rivets passing through the central hinge holes, allowing both connecting rods to rotate around the rivets. The inner diameter of the sleeve 9 is larger than the outer diameter of the mounting cylinder 1, allowing the sleeve 9 to fit onto the mounting cylinder 1 and move relative to it. A hinge seat is installed on the outer surface of the sleeve 9, hinged to the lower end of the first connecting rod 7. A hinge seat is also installed on the outer surface of the mounting cylinder 1, hinged to the lower end of the second connecting rod 8. This configuration allows the first connecting rod 7 to rotate when the sleeve 9 is moved. The ends of the first connecting rod 7 and the second connecting rod 8 that are away from the mounting cylinder 1 extend or retract. Since the upper end of the first connecting rod 7 also moves synchronously when the sleeve 9 moves, a first guide member 10 arranged axially along the mounting cylinder 1 is provided on the inner circumferential surface of the cleaning plate 3. The upper end of the first connecting rod 7 is hinged to the second guide member 11. The second guide member 11 and the first guide member 10 cooperate, allowing the upper end of the first connecting rod 7 to move along the first guide member 10 as the sleeve 9 moves. Simultaneously, a hinged connecting seat 12 is provided at the end of the first guide member 10, and the upper end of the second connecting rod 8 is hinged to the hinged connecting seat 12. Thus, under the combined action of the first connecting rod 7 and the second connecting rod 8, the extension and retraction of the cleaning plate 3 relative to the mounting cylinder 1 can be achieved. The first guide member 10 can be a dovetail block, and the second guide member 11 can be a guide block with a dovetail groove. To prevent the sleeve 9 from moving after it has been moved into place, a locking component is provided on the sleeve 9. The locking component can be a wedge. After the sleeve 9 has been moved into place, the wedge is wedged into the gap between the sleeve 9 and the mounting cylinder 1 to lock the sleeve 9.

[0026] Since the dovetail groove and dovetail block are difficult to process, furthermore, as a preferred embodiment, the first guide member 10 is a T-shaped block, and the second guide member 11 is a guide block with a T-shaped groove. The guide block can be a circular block.

[0027] To prevent the second guide member 11 from slipping off the first guide member 10, further see... Figure 3 The first guide member 10 has limit plates 13 at both ends, and the limit plates 13 are fixedly connected to the inner surface of the cleaning plate 3.

[0028] When the radius of pipe 22 is larger than the radius of the arc formed by cleaning plate 3, sleeve 9 needs to be moved to make the cleaning part 5 on the outer surface of cleaning plate 3 abut against the inner surface of pipe 22. During the movement of sleeve 9, the extension of cleaning plate 3 will change, which will cause a gap between two adjacent cleaning plates 3, so that the cleaning part 5 cannot completely cover the inner surface of pipe 22. Further, see Figure 3 , Figure 4 and Figure 5The first guide member 10 has wing plates 14 on both sides, and the opposing surfaces of the two wing plates 14 are inclined guide surfaces 15. The guide block abuts against the two guide surfaces 15 respectively. The distance between the two guide surfaces 15 near the upper end of the first connecting rod 7 is smaller than the distance between the two guide surfaces 15 away from the upper end of the first connecting rod 7. The inner wall of the limiting plate 13 is provided with a third guide member 16, and the side wall of the wing plate 14 opposite to the limiting plate 13 is provided with a fourth guide member 17. The outer surface of the wing plate 14 is provided with a cleaning cloth 21. In the initial state, the end of the wing plate 14 away from the first guide member 10 is flush with the side of the cleaning plate 3. The third guide member 16 is a groove and the fourth guide member 17 is a slider. The two opposite surfaces of the wing plate 14 are inclined guide surfaces 15, and the guide block abuts against the two guide surfaces 15 respectively. When the guide block moves along the first guide member 10, the guide block will provide a horizontal component force to the wing plates 14 on both sides. This horizontal component force will cause the wing plate 14 to slide along the third guide member 16, thereby causing the end of the wing plate 14 to slide out of the cleaning plate 3. At the same time, a cleaning cloth 21 is provided on the outer surface of the wing plate 14. The cleaning cloth 21 is a non-woven fabric with good expansion and compression properties. When the wing plate 14 has not yet extended out of the cleaning plate 3, the cleaning cloth 21 is in a compressed state. When the wing plate 14 extends out of the cleaning plate 3, the cleaning cloth 21 expands and fills the gap between the outer surface of the wing plate 14 and the inner surface of the pipe 22.

[0029] In order to ensure that the wing plate 14 can be restored to its initial state as soon as possible after cleaning, further, see Figure 3 A return spring 18 is provided between the T-block and the guide surface 15. One end of the return spring 18 is fixedly connected to the side wall of the T-block and the other end is fixedly connected to the guide surface 15. The return spring 18 is located on both sides of the guide block.

[0030] In the above embodiments, the locking component uses a wedge block, and locking and unlocking the sleeve 9 are relatively cumbersome. Further, see... Figure 1 The locking assembly includes a threaded hole on the sleeve 9, in which a limiting bolt 19 is disposed. The end of the limiting bolt 19 abuts against the outer surface of the mounting cylinder 1. During use, the sleeve 9 moves axially along the mounting cylinder 1. After moving to the working position, the limiting bolt 19 is tightened, causing the end of the limiting bolt 19 to abut against the outer surface of the mounting cylinder 1, thus locking the sleeve 9 and preventing relative movement between the sleeve 9 and the mounting cylinder 1. With this structure, when the cleaning plate 3 is unfolded to a suitable extent, the sleeve 9 can be better locked onto the mounting cylinder 1, preventing the sleeve 9 from moving relative to the mounting cylinder 1 during use.

[0031] In the above embodiment, the driving mechanism 6 is a driving trolley. The driving trolley moves along the inner surface of the pipe 22 during use, which may damage the inner surface of the pipe 22. Further, see... Figure 1 and Figure 2 The drive assembly includes a mounting base 601 disposed on the outside of the pipe 22. A take-up reel 602 is rotatably connected to the mounting base 601, and the take-up reel 602 is connected to the mounting cylinder 1 via a connecting rope 603. The mounting base 601 is disposed on the workshop floor, and the take-up reel 602 is connected to the mounting base 601 via a bearing. A motor can be used to drive the take-up reel 602 to rotate. Through the rotation of the take-up reel 602, the connecting rope 603 is gradually wound around the take-up reel 602, thereby driving the mounting cylinder 1 to move along the axis of the pipe 22.

[0032] To ensure the cleaned inner surface of pipe 22 dries promptly, further see... Figure 1 A fan 20 is provided at the end of the mounting cylinder 1. The fan 20 is located at the rear end of the pipe 22 in the direction of movement.

[0033] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A pipe cleaning device, comprising a mounting cylinder (1), wherein at least two mounting brackets (2) are arranged circumferentially along the mounting cylinder (1), characterized in that: Each mounting bracket (2) has an arc-shaped cleaning plate (3) at its end away from the mounting cylinder (1). The outer circumferential surface of the cleaning plate (3) is an arc-shaped cleaning surface (4). The cleaning surface (4) is provided with a cleaning part (5) for abutting against the inner surface of the pipe (22). The mounting cylinder (1) is provided with a driving mechanism (6) for driving the mounting cylinder (1) to move axially along the pipe (22). The mounting bracket (2) includes a first connecting rod (7), a second connecting rod (8), and a sleeve (9). The first connecting rod (7) and the second connecting rod (8) are arranged crosswise and hinged. The sleeve (9) is fitted onto the mounting sleeve (1) and can move along the axial direction of the mounting sleeve (1). The lower end of the first connecting rod (7) is hinged to the sleeve (9), and the lower end of the second connecting rod (8) is hinged to the mounting sleeve (1). A first guide member (10) is provided on the inner circumferential surface of the cleaning plate (3) and arranged axially along the mounting sleeve (1). A second guide member (11) is provided on the cleaning plate (3) and used in conjunction with the first guide member (10). The second guide member (11) can move relative to the first guide member (10). The sleeve (9) is provided with a mechanism for adjusting the sleeve (9). The limiting assembly has the upper end of the first connecting rod (7) hinged to the second guide (11), and the end of the first guide (10) is provided with a hinged connecting seat (12). The upper end of the second connecting rod (8) is hinged to the hinged connecting seat (12). The first guide (10) is a T-shaped block, and the second guide (11) is a guide block with a T-shaped groove. Limiting plates (13) are provided at both ends of the first guide (10), and the limiting plates (13) are fixedly connected to the inner surface of the cleaning plate (3). Wing plates (1) are provided on both sides of the first guide (10). 4) The two wing plates (14) facing each other are inclined guide surfaces (15). The guide blocks abut against the two guide surfaces (15) respectively. The distance between the two guide surfaces (15) near the upper end of the first connecting rod (7) is smaller than the distance between the two guide surfaces (15) far from the upper end of the first connecting rod (7). A third guide (16) is provided on the inner wall of the limiting plate (13). A fourth guide (17) is provided on the side wall of the wing plate (14) opposite to the limiting plate (13). A cleaning cloth (21) is provided on the outer surface of the wing plate (14).

2. The pipe cleaning device as described in claim 1, characterized in that: A reset spring (18) is provided between the T-block and the guide surface (15). One end of the reset spring (18) is fixedly connected to the side wall of the T-block, and the other end is fixedly connected to the guide surface (15). The reset spring (18) is located on both sides of the guide block.

3. The pipe cleaning device as described in claim 1, characterized in that: The limiting component includes a threaded hole provided on the sleeve (9), in which a limiting bolt (19) is provided, and the end of the limiting bolt (19) abuts against the outer surface of the mounting cylinder (1).

4. The pipeline cleaning device as described in claim 1, characterized in that: The drive mechanism (6) includes a mounting base (601) disposed on the outside of the pipe (22), a take-up reel (602) is rotatably connected to the mounting base (601), and the take-up reel (602) is connected to the mounting cylinder (1) by a connecting rope (603).

5. The pipeline cleaning device as described in claim 1, characterized in that: A fan (20) is provided at the end of the mounting cylinder (1).

6. The pipe cleaning device as described in claim 1, characterized in that: The cleaning part (5) is cleaning paper or non-woven fabric.

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