A trenchless pipeline dredging device

Abstract

This utility model provides a trenchless pipeline dredging device, comprising multiple dredging mechanisms connected to each other via hinge joint assemblies. Each hinge joint assembly includes a cross-shaped joint shaft, with a first hinge joint and a second hinge joint respectively hinged along the cross direction. Each dredging mechanism includes a connecting shaft, one end of which is connected to the first hinge joint, and the other end to the dredging mechanism. The second hinge joint is connected to one end of the connecting shaft of an adjacent dredging mechanism, thereby enabling relative rotation of adjacent dredging mechanisms in multiple planes. By employing a connection structure of multiple dredging mechanisms and hinge joint assemblies, and utilizing the cross-shaped joint shaft to respectively hinge the first and second hinge joints and connect them to the connecting shaft, adjacent dredging mechanisms can rotate flexibly in multiple planes, improving the overall flexibility and curve-passing capability of the device.

Description

Technical Field

[0001] This utility model relates to the field of pipeline repair technology, and in particular to a trenchless pipeline dredging device. Background Technology

[0002] As urban underground pipe networks become increasingly complex, traditional open-cut dredging methods are no longer sufficient due to high costs and significant disruption to residents. Therefore, trenchless pipe dredging devices have emerged, allowing access to the pipes through manholes for unblocking operations without damaging the road surface. This technology boasts advantages such as short construction cycles, minimal environmental impact, and high safety, and is widely used in municipal and sewage systems, effectively improving pipe network operation and maintenance efficiency and urban management.

[0003] When dealing with pipeline dredging operations along long routes, to ensure that the dredging equipment can penetrate the entire pipe section, it is usually necessary to select a longer dredging device or an extended push rod / traction system. However, in actual operation, these longer devices often struggle to pass smoothly, especially when encountering bends in the pipeline system, due to their high rigidity and insufficient flexibility. Particularly at bends with small radii of curvature, the equipment is prone to jamming, wear, or even damage to the inner wall of the pipe, leading to dredging failure or secondary malfunctions.

[0004] Therefore, the aforementioned technical issues need to be resolved. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a trenchless pipeline dredging device to solve the problem that trenchless pipeline dredging devices in the prior art have difficulty passing through bends smoothly.

[0006] To achieve the above and other related objectives, this utility model provides the following technical solution: a trenchless pipeline dredging device, comprising multiple dredging mechanisms, wherein the dredging mechanisms are hinged to each other via hinge joint assemblies; each hinge joint assembly includes a cross joint shaft, wherein a first hinge joint and a second hinge joint are respectively hinged in the cross direction of the cross joint shaft; each dredging mechanism includes a connecting shaft, one end of which is connected to the first hinge joint and the other end of which is connected to the dredging assembly; the second hinge joint is connected to one end of the connecting shaft of an adjacent dredging mechanism, thereby enabling relative rotation of adjacent dredging mechanisms in multiple planes.

[0007] To achieve the above technical solution, a connection structure of multiple dredging mechanisms and hinged joint components is adopted. The first and second hinge joints are respectively hinged to the cross joint shaft and connected to the connecting shaft, allowing adjacent dredging mechanisms to rotate flexibly in multiple planes, improving the overall flexibility and bend-passing ability of the device. When passing through pipe bends, each dredging mechanism can adaptively deflect section by section according to the pipe route, effectively avoiding jamming or damage to the pipe wall, ensuring stable and continuous advancement of the equipment in long-distance, multi-bend pipes. This solves the technical problem that traditional rigid dredging devices are difficult to adapt to complex pipe diameters, and improves the reliability and applicability of trenchless dredging operations.

[0008] In one embodiment of the present invention, the hinge joint assembly is provided with a flexible sheath on its outer periphery.

[0009] To achieve the above technical solution, a flexible sheath is provided on the outer periphery of the articulated joint assembly. This not only protects and seals the internal articulated structure, preventing sewage and silt from entering and causing the joint to jam, but also effectively reduces the frictional resistance between the device and the pipe wall when passing through bends, avoiding scratches on the inner wall of the pipe. At the same time, the flexible sheath has a certain elastic deformation capacity, which can adapt to the deformation requirements of the joint when rotating in multiple planes, further improving the device's passability and operational stability in curved pipes, ensuring continuous and efficient dredging operations.

[0010] In one embodiment of this utility model, multiple sets of dredging components are arranged on the connecting shaft, and driving components are arranged between the dredging components; the driving components include multiple sets of driving rods and multiple sets of driving wheels; the driving rods and driving wheels are correspondingly connected.

[0011] To achieve the above technical solution, multiple sets of dredging components are installed on the connecting shaft, and drive components are provided between the dredging components. This structure realizes an integrated layout of dredging and walking functions. The drive components drive the drive rods through internal electric drive to rotate the drive wheels, thereby propelling the entire device to move forward or backward autonomously in the pipeline, improving the controllability and propulsion efficiency of the equipment. The setting of multiple sets of drive wheels enhances the contact stability with the pipe wall and avoids slippage. Especially in the case of bends or slippery conditions, it can still maintain reliable traction. Combined with the articulated structure, it allows the device to pass through complex pipe sections more smoothly, improving the overall adaptability of long-distance, multi-bend pipeline dredging operations.

[0012] In one embodiment of the present invention, the drive wheel moves in contact with the pipe wall, and a flexible ring is sleeved on the outside of the drive wheel.

[0013] To achieve the above technical solution, the drive wheel moves in contact with the pipe wall, and a flexible ring is fitted around its outside. Stable driving is achieved through the friction between the flexible ring and the pipe wall, effectively preventing wear or scratches caused by rigid contact between the drive wheel and the pipe wall. At the same time, the flexible ring has good elasticity and anti-slip properties, which can adapt to pipe walls of different diameters and local deformations, ensuring that the drive wheel maintains good contact and traction in bends or uneven pipe sections, improving the passability and operational stability of the device, and extending the service life of the equipment and pipeline.

[0014] In one embodiment of the present invention, the dredging assembly includes a drive bearing, dredging blades, and a dredging wheel; the drive bearing is mounted on a connecting shaft, and multiple sets of dredging blades are evenly distributed on the outer ring of the drive bearing, with the dredging blades externally connected to the dredging wheel.

[0015] To achieve the above technical solution, when the dredging component is working, the drive bearing drives the dredging blades and dredging wheel to rotate synchronously. The dredging blades first cut and break up the silt on the inner wall of the pipe, and the dredging wheel further gathers and guides the broken sludge, thus achieving efficient and continuous dredging operations.

[0016] In one embodiment of this utility model, the outer ring of the sludge wheel is provided with multiple sets of holes and grooves, and multiple bristles are implanted in the holes and grooves.

[0017] To achieve the above technical solution, the outer ring of the sludge-removing wheel is provided with multiple sets of grooves, and multiple bristles are embedded in the grooves. During the sludge removal process, the bristles directly contact the inner wall of the pipe, which can effectively remove stubborn sludge, biofilm and fine particulate deposits attached to the pipe wall, making up for the inadequacy of the sludge-removing blades in removing thin layers of dirt, and achieving a combined sludge removal effect of scraping and brushing. At the same time, the bristles have a certain degree of elasticity, which makes them well adaptable to pipes of different diameters and slightly deformed pipes, avoiding damage to the pipe wall and further improving the thoroughness and safety of sludge removal.

[0018] In one embodiment of this utility model, at least two sets of dredging components are provided on the connecting shaft.

[0019] To achieve the above technical solution, at least two sets of dredging components are installed on the connecting shaft. Through multi-point distributed arrangement, the coverage of dredging operations is expanded and the dredging efficiency per unit stroke is improved. At the same time, multiple dredging components work together to achieve segmented cutting and continuous removal of silt at different circumferential and axial positions of the pipeline, avoiding excessive local load that could cause equipment jamming and improving operational stability.

[0020] As described above, the trenchless dredging device of this utility model has the following beneficial effects: By adopting a connection structure of multiple dredging mechanisms and hinged joint components, and using a cross joint shaft to hinge the first and second hinge joints and connect them to the connecting shaft, adjacent dredging mechanisms can rotate flexibly in multiple planes, improving the overall flexibility and bend-passing ability of the device; when passing through pipe bends, each dredging mechanism can adaptively deflect section by section according to the pipe route, effectively avoiding jamming or damage to the pipe wall, ensuring stable and continuous advancement of the equipment in long-distance, multi-bend pipes, thereby solving the technical problem that traditional rigid dredging devices are difficult to adapt to complex pipe diameters, and improving the reliability and applicability of trenchless dredging operations. Attached Figure Description

[0021] Figure 1 The diagram shown is a structural schematic of a trenchless dredging device for pipelines disclosed in an embodiment of this utility model.

[0022] Figure 2 The diagram shown is a schematic diagram of the connecting joint assembly structure of a trenchless dredging device for pipelines disclosed in an embodiment of this utility model.

[0023] Figure 3 The diagram shown is a schematic diagram of the slurry wheel structure of a trenchless dredging device for pipelines disclosed in an embodiment of this utility model.

[0024] Component labeling: 1. Connecting joint assembly; 101. Cross joint shaft; 102. First hinge joint; 103. Second hinge joint; 2. Connecting shaft; 3. Drive assembly; 4. Dredging assembly; 400. Dredging wheel; 401. Drive bearing; 402. Groove; 403. Dredging blade. Detailed Implementation

[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] Please see Figure 1-2 This utility model provides a trenchless pipeline dredging device, including multiple dredging mechanisms that are hinged to each other via hinge joint assemblies. The hinge joint assembly includes a cross joint shaft 101, with a first hinge joint 102 and a second hinge joint 103 respectively hinged in the cross direction of the cross joint shaft 101. Each dredging mechanism includes a connecting shaft 2, with one end connected to the first hinge joint 102 and the other end connected to the dredging assembly 4. The second hinge joint 103 is connected to one end of the connecting shaft 2 of the adjacent dredging mechanism, thereby enabling relative rotation of the adjacent dredging mechanisms in multiple planes.

[0027] By employing a connection structure with multiple dredging mechanisms and hinged joint components, and using the cross joint shaft 101 to hinge the first and second hinge joints 103 respectively and connect them to the connecting shaft 2, adjacent dredging mechanisms can rotate flexibly in multiple planes, improving the overall flexibility and bend-passing ability of the device. When passing through pipe bends, each dredging mechanism can adaptively deflect section by section according to the pipe route, avoiding jamming or damage to the pipe wall, ensuring stable and continuous advancement of the equipment in long-distance, multi-bend pipes. This solves the technical problem that traditional rigid dredging devices are difficult to adapt to complex pipe diameters, and improves the reliability and applicability of trenchless dredging operations.

[0028] Furthermore, the hinge joint assembly is provided with a flexible sheath around its periphery.

[0029] A flexible sheath is provided around the hinge joint assembly. This not only protects and seals the internal hinge structure, preventing sewage and silt from entering and causing the joint to jam, but also reduces the frictional resistance between the device and the pipe wall when passing through bends, avoiding scratches on the inner wall of the pipe. At the same time, the flexible sheath has a certain degree of elastic deformation capacity, which can adapt to the deformation requirements of the joint when rotating in multiple planes, further improving the device's passability and operational stability in curved pipes, and ensuring continuous and efficient dredging operations.

[0030] Furthermore, multiple sets of dredging components 4 are provided on the connecting shaft 2, and drive components 3 are provided between the dredging components 4; the drive components 3 include multiple sets of drive rods and multiple sets of drive wheels; the drive rods and drive wheels are connected accordingly.

[0031] Multiple dredging components 4 are set on the connecting shaft 2, and drive components 3 are provided between the dredging components 4. This structure realizes the integrated layout of dredging and walking functions. The drive components 3 drive the drive rod through internal electric drive to drive the drive wheel to rotate, thereby propelling the entire device to move forward or backward autonomously in the pipeline, improving the controllability and propulsion efficiency of the equipment. The setting of multiple drive wheels enhances the contact stability with the pipe wall and avoids slippage. Especially in the case of bends or wet and slippery conditions, it can still maintain reliable traction. Combined with the articulated structure, it makes the device pass through complex pipe sections more smoothly and improves the overall adaptability of long-distance, multi-bend pipeline dredging operations.

[0032] Furthermore, the drive wheel moves in contact with the pipe wall, and a flexible ring is fitted around the outside of the drive wheel.

[0033] The drive wheel moves in contact with the pipe wall, and a flexible ring is fitted around it. Stable drive is achieved through the friction between the flexible ring and the pipe wall, preventing wear or scratches caused by rigid contact between the drive wheel and the pipe wall. At the same time, the flexible ring has good elasticity and anti-slip properties, which can adapt to pipes of different diameters and local deformations. This ensures that the drive wheel maintains good contact and traction in bends or uneven pipe sections, improves the device's passability and operational stability, and extends the service life of the equipment and pipeline.

[0034] For further information, please refer to [link / reference]. Figure 3 The dredging component 4 includes a drive bearing 401, dredging blades 403, and dredging wheel 400. The drive bearing 401 is mounted on the connecting shaft 2, and multiple sets of dredging blades 403 are evenly distributed on the outer ring of the drive bearing 401. The external parts of the dredging blades 403 are connected to the inside of the dredging wheel 400.

[0035] When the dredging component 4 is working, the drive bearing 401 drives the dredging blade 403 and the dredging wheel 400 to rotate synchronously. The dredging blade 403 first cuts and breaks up the silt on the inner wall of the pipe, while the dredging wheel 400 further gathers and guides the broken sludge, thus achieving efficient and continuous dredging operation.

[0036] Furthermore, the outer ring of the sludge wheel 400 is provided with multiple sets of holes and grooves 402, and multiple bristles are embedded in the holes and grooves 402.

[0037] The outer ring of the sludge-removing wheel 400 is equipped with multiple sets of grooves 402, and multiple bristles are embedded in the grooves 402. During the sludge removal process, the bristles come into direct contact with the inner wall of the pipe, which can remove stubborn sludge, biofilm and fine particulate deposits attached to the pipe wall. This compensates for the inadequacy of the sludge-removing blade 403 in removing thin layers of dirt, and achieves a combined sludge removal effect of scraping and brushing. At the same time, the bristles have a certain degree of elasticity, which makes them adaptable to different pipe diameters and slightly deformed pipes, avoiding damage to the pipe wall and further improving the thoroughness and safety of sludge removal.

[0038] Furthermore, at least two sets of dredging components 4 are provided on the connecting shaft 2, and two sets are provided in this embodiment.

[0039] At least two sets of dredging components 4 are installed on the connecting shaft 2. Through multi-point distributed arrangement, the coverage of dredging operations is expanded and the dredging efficiency per unit stroke is improved. At the same time, multiple dredging components 4 work together to achieve segmented cutting and continuous removal of silt at different circumferential and axial positions of the pipeline, avoiding excessive local load that could cause equipment jamming and improving operational stability.

[0040] Furthermore, the workflow of a trenchless pipeline dredging device includes:

[0041] First, the front end of the device is inserted into the pipeline inspection well and aligned with the target pipe section. The power system is started, and the drive rod drives the drive wheel, propelling the device forward autonomously. During the movement, multiple dredging components 4 work simultaneously. The drive bearing 401 drives the dredging blades 403 to rotate at high speed, cutting and peeling away silt, scale, tree roots, and other blockages on the pipe wall. Subsequently, the dredging wheel 400 gathers and guides the broken material, while the outer bristles of the dredging wheel 400 finely scrub the pipe wall to further remove residual dirt. Through the synergistic effect of the hinge joint components and the flexible sheath, the device achieves multi-plane flexible steering at bends, ensuring smooth passage through complex pipe sections. After dredging is completed, the device reverses its direction and exits the pipeline. In conjunction with the suction equipment, loose sludge is removed, achieving efficient, continuous, and low-damage trenchless pipeline dredging operations.

[0042] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. All equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A trenchless pipeline dredging device, characterized in that, The device includes multiple dredging mechanisms that are hinged to each other via hinge joint assemblies. Each hinge joint assembly includes a cross joint shaft, with a first hinge joint and a second hinge joint respectively hinged along the cross direction. Each dredging mechanism includes a connecting shaft, with one end connected to the first hinge joint and the other end connected to the dredging assembly. The second hinge joint is connected to one end of the connecting shaft of an adjacent dredging mechanism, thereby enabling relative rotation of adjacent dredging mechanisms in multiple planes.

2. The trenchless pipeline dredging device according to claim 1, characterized in that, The hinge joint assembly is provided with a flexible sheath on its outer periphery.

3. The trenchless pipeline dredging device according to claim 1, characterized in that, Multiple sets of dredging components are arranged on the connecting shaft, and drive components are arranged between the dredging components; the drive components include multiple sets of drive rods and multiple sets of drive wheels; the drive rods and drive wheels are connected to each other.

4. The trenchless pipeline dredging device according to claim 3, characterized in that, The drive wheel moves in contact with the pipe wall, and a flexible ring is fitted around the outside of the drive wheel.

5. A trenchless pipeline dredging device according to claim 2, characterized in that, The dredging assembly includes a drive bearing, dredging blades, and a dredging wheel; the drive bearing is mounted on a connecting shaft, and multiple sets of dredging blades are evenly distributed on the outer ring of the drive bearing, with the dredging blades externally connected to the dredging wheel.

6. A trenchless pipeline dredging device according to claim 5, characterized in that, The outer ring of the sludge wheel is provided with multiple sets of holes and grooves, and multiple bristles are inserted into the holes and grooves.

7. A trenchless pipeline dredging device according to claim 5, characterized in that, At least two sets of dredging components are provided on the connecting shaft.

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