Dredging equipment for drainage pipeline

Abstract

The invention provides desilting equipment for a drainage pipeline, and relates to pipeline maintenance equipment, the desilting equipment comprises a traction joint, a first folding supporting device, a second folding supporting device, a third folding supporting device, a crushing device, a power supply device and a collecting device; the first folding supporting device is connected to the traction connector and the front portion of the crushing device, the second folding supporting device is connected to the rear portion of the crushing device and the front portion of the power supply device, and the third folding supporting device is connected to the rear portion of the power supply device and the front portion of the collecting device. The device is used for crushing blockages with different hardness and forms, so that substances which are deposited and solidified for a long time in a drainage pipeline are cut and crushed, and the problem that existing mechanical dredging equipment is difficult to thoroughly clean the interior of the drainage pipeline is solved.

Description

Technical Field

[0001] This invention relates to the field of pipeline maintenance equipment, and more specifically to a dredging device for drainage pipelines. Background Technology

[0002] Currently, common drainage pipeline dredging technologies mainly include high-pressure water jet dredging and traditional mechanical dredging equipment. Among them:

[0003] High-pressure water jet dredging technology utilizes a high-pressure pump to generate a high-pressure water jet, which is then propelled at high speed through a specially designed nozzle. This jet impacts the silt on the inner wall of the drainage pipe, breaking it up and flushing it away with the water flow. This technology is effective in removing silt to a certain extent and is relatively environmentally friendly because it relies primarily on the impact force of water and does not involve the use of large amounts of chemical agents.

[0004] Traditional mechanical dredging equipment typically employs dredging robots or dredging tools equipped with mechanical components such as scrapers and brushes. Dredging robots generally possess a certain degree of automation, such as autonomous movement and exploration within the pipeline. They use robotic arms or rotating scrapers and brushes to scrape or sweep away sludge from the pipe walls, then collect and transport the removed sludge out of the pipeline.

[0005] However, the composition of silt in drainage pipes is extremely complex, containing mud, gravel, oil, biological residue, and substances that have solidified due to long-term deposition. Existing dredging methods cannot ensure that all types of silt are completely removed without residue. For example, traditional mechanical scraping equipment often fails to completely remove sticky oily silt, and the residual oil gradually attracts new impurities, causing the silt to accumulate again. Conventional dredging tools cannot fully cover pipe corners, changes in diameter, and small depressions in the pipe wall, making these areas breeding grounds for silt, which over time can lead to pipe blockages or poor drainage. Summary of the Invention

[0006] The purpose of this invention is to provide a sludge removal device and lifting mechanism for drainage pipelines, so as to solve the problem that existing mechanical sludge removal equipment is difficult to clean the sludge inside drainage pipelines.

[0007] The problem of substances that have been deposited and solidified over a long period of time being difficult to clean.

[0008] For the purposes described above, this application provides a dredging device for drainage pipelines, comprising a traction joint, a first folding support device, a second folding support device, a third folding support device, a crushing device, a power supply device, and a collection device.

[0009] The traction joint, crushing device, power supply device, and collection device are arranged sequentially from front to back;

[0010] The first folding support device is connected to the front of the traction joint and the crushing device;

[0011] The second folding support device is connected to the rear of the crushing device and the front of the power supply device;

[0012] The third folding support device is connected to the rear of the power supply device and the front of the collection device;

[0013] The first, second, and third folding support devices have the same structure and are used to contact the inner wall of the pipe, respectively, and can be extended and adjusted according to the diameter of the pipe.

[0014] The crushing device is used to crush blockages of different hardness and shape.

[0015] Furthermore, the crushing device includes a crushing support housing, a swing motor, a swing arm, a cutting drive motor, and a cutting wheel;

[0016] The crushing support housing has an internal accommodating cavity, the swing motor is fixed inside the accommodating cavity, the first end of the swing arm is provided with a circular gear, the middle part of the circular gear is rotatably connected to the inner wall of the accommodating cavity through a shaft, the accommodating cavity is also connected to a drive gear through a shaft, the swing motor is connected to the crushing support housing, and the output shaft of the swing motor is connected to the shaft of the drive gear.

[0017] The second end of the swing arm is connected to a cutting wheel via a shaft, and the cutting drive motor is fixed on the swing arm and connected to the shaft of the cutting wheel.

[0018] Furthermore, the first folding support device, the second folding support device, and the third folding support device each include a support housing, an adjusting motor, a lead screw, a triangular support base, and a support adjusting assembly;

[0019] The adjusting motor is fixed inside the support housing;

[0020] One end of the lead screw is mounted to the support housing via a bearing, and the adjusting motor is connected to the end of the lead screw. The other end of the lead screw is used to rotatably connect to the corresponding traction joint, crushing device, power supply device, or collection device via a bearing.

[0021] The middle part of the lead screw is set as a smooth rod part, and the triangular support is rotatably connected to the smooth rod part through a bearing;

[0022] The two sides of the smooth rod are provided with threaded connection parts with opposite rotation directions. Each of the two threaded connection parts is threaded with a triangular sliding seat. Furthermore, the three protruding first corners of the triangular sliding seat correspond one-to-one with the protruding second corners of the triangular support seat.

[0023] Each of the first and second corner sections is rotatably connected by a shaft to a support and adjustment assembly for contacting the inside of the pipe.

[0024] Furthermore, the support adjustment assembly includes a first rotating frame, a second rotating frame, and support wheels;

[0025] One end of the first rotating frame is rotatably connected to the second corner via a shaft, and the other end of the first rotating frame is rotatably connected to the support wheel via a shaft.

[0026] One end of the second rotating frame is rotatably connected to the first corner via a shaft, and the other end of the second rotating frame is rotatably connected to the first rotating frame via a shaft.

[0027] Furthermore, the included angle between the three first corners of the triangular sliding seat is 220 degrees, and the included angle between the three second corners of the triangular support seat is 220 degrees.

[0028] Furthermore, the first folding support device, the second folding support device, and the third folding support device each include three guide rods, with both ends of the guide rods fixed between the support housing and the corresponding traction joint, crushing device, power supply device, or collection device.

[0029] Guide holes are provided on the first and second corner portions to slide with the corresponding guide rods.

[0030] Furthermore, the power supply device includes a battery protective case and a storage battery. The storage battery is disposed inside the battery protective case and is used to connect to the controller, the first folding support device, the second folding support device, the third folding support device, and the crushing device via wiring.

[0031] Furthermore, the collection device includes a storage compartment and a conveying device;

[0032] The front end of the storage compartment is connected to the motor compartment via a bracket;

[0033] The conveying device includes a conveying motor, a conveying shaft, and spiral blades. The conveying motor is fixed inside the motor compartment, and the spiral blades are mounted on the conveying shaft and located inside the storage compartment. One end of the conveying shaft is rotatably connected to the cover of the motor compartment via a bearing, and the conveying motor is connected to the conveying shaft. The other end of the conveying shaft is rotatably connected to the rear support of the storage compartment via a bearing.

[0034] Furthermore, the collection device also includes a storage bag, the opening of which is detachably connected to the rear end of the storage compartment via a connecting component.

[0035] By adopting the above technical solution, the dredging equipment for drainage pipelines provided in this application has the following technical advantages compared with the prior art:

[0036] In this solution, the first folding support device is connected to the front of the traction joint and the crushing device, the second folding support device is connected to the rear of the crushing device and the front of the power supply device, and the third folding support device is connected to the rear of the power supply device and the front of the collection device. The first, second, and third folding support devices have the same structure and are used to contact the inner wall of the pipe. They can be extended and adjusted according to the diameter of the pipe, so that they can move in pipes of different diameters. The crushing device has a rotary cutting component for crushing blockages of different hardness and shape, thereby cutting and crushing the long-term deposited and solidified substances in the drainage pipe, solving the problem that existing mechanical dredging equipment is difficult to thoroughly clean the drainage pipe. Attached Figure Description

[0037] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the structure of the dredging equipment for drainage pipelines provided in the embodiments of this application;

[0039] Figure 2 This is a schematic diagram of the crushing device provided in the embodiments of this application from a first-view perspective;

[0040] Figure 3 This is a structural schematic diagram of the crushing device provided in the embodiments of this application from a second perspective;

[0041] Figure 4 This is a schematic diagram of the structure of the first folding support device provided in the embodiments of this application;

[0042] Figure 5 This is a schematic diagram of the collection device provided in the embodiments of this application.

[0043] Icons: 100-Traction joint; 200-First folding support device; 201-Second folding support device; 202-Third folding support device; 210-Support housing; 220-Screw rod; 230-Triangular support seat; 231-Second corner; 240-Triangular sliding seat; 241-First corner; 250-First rotating frame; 260-Second rotating frame; 270-Support wheel; 280-Guide rod; 300-Crushing device; 310-Crushing support housing; 320-Accommodation cavity; 330-Oscillating motor; 340-Drive gear; 350-Oscillating arm; 360-Circular gear section; 370-Cut drive motor; 380-Cut wheel; 400-Power supply device; 500-Collection device; 510-Storage bin; 520-Storage bag; 530-Motor compartment; 540-Helical blade; 550-Conveying shaft. Detailed Implementation

[0044] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] This invention addresses the common problems in existing drainage pipeline dredging technologies, especially mechanical dredging equipment, which often suffer from incomplete cleaning, difficulty adapting to different pipe diameters, and poor cleaning effectiveness in special pipe areas (such as corners, diameter changes, and pipe wall depressions) when dealing with complex components (such as silt, gravel, oil, and biological residue) and long-term solidified hard blockages. It proposes a modular dredging device integrating adaptive support, efficient crushing, and reliable collection functions. This device aims to achieve stable movement throughout the pipeline, effective crushing of various blockages, and immediate collection and transportation of crushed products, thereby significantly improving the thoroughness, efficiency, and adaptability of dredging operations.

[0048] like Figure 1 As shown in the illustration, this application provides a dredging device for drainage pipelines, which is configured as a modular structure extending along the pipeline axis. From front to back (i.e., along the traction direction), the structure sequentially includes: a traction joint 100, a first folding support device 200, a crushing device 300, a second folding support device 201, a power supply device 400, a third folding support device 202, and a collection device 500. This sequential layout is based on a special design that balances functional flow and mechanical properties.

[0049] The traction joint 100 serves as the traction point for the entire equipment, connecting to an external power source (such as a traction cable) to provide power for the equipment's forward and backward movement within the pipeline. However, the internal environment of a pipeline is not an ideal smooth cylindrical surface; variations in diameter, localized deformation, and misalignment of interfaces are common. If the main body of the equipment lacks effective radial support and self-aligning capabilities, relying solely on the traction point for movement can easily lead to tilting, jamming, or even damage to the equipment.

[0050] To address this, this solution incorporates three identical folding support devices between the key functional modules of the equipment: the first folding support device 200 is located between the traction joint 100 and the crushing device 300; the second folding support device 201 is located between the crushing device 300 and the power supply device 400; and the third folding support device 202 is located between the power supply device 400 and the collecting device 500. These three support devices constitute the three main support points of the equipment within the pipeline, forming a stable "three-point support" system. This effectively prevents the equipment from swaying or rolling during operation, ensuring that its axis remains as consistent as possible with the pipeline axis.

[0051] Furthermore, each folding support device is capable of adaptive radial extension adjustment based on the inner diameter of the pipe. Correspondingly, when the equipment moves from one type of pipe to another, or passes through areas of local expansion or contraction in the pipe, the support device can adjust its extension according to the engineer's instructions, maintaining appropriate contact with the pipe wall and providing stable support. This ensures the equipment's ability to pass through different pipe diameters and even non-standard pipes, as well as its operational stability. This is the foundation for the equipment's wide applicability.

[0052] After ensuring the stable operation of the equipment, the dredging function of this solution is achieved by the crushing device 300. For blockages in drainage pipes, especially long-term deposits such as hardened lumps, concrete fragments, and tree root intrusions, which are hard and irregularly shaped, traditional scrapers, brushes, or low-pressure water jets are ineffective. The crushing device 300 in this solution is designed to overcome this challenge. The core of the crushing device 300 is an active rotating cutting component, which is not fixed but designed as a dynamic crushing head with a certain range of oscillation capability.

[0053] Specifically, such as Figure 2 and Figure 3 As shown, the crushing device 300 includes a crushing support housing 310, which has an internal accommodating cavity 320. A swing motor 330 is fixed inside the accommodating cavity 320. The output shaft of the swing motor 330 is connected to a drive gear 340. A swing arm 350 is rotatably connected to the inner wall of the accommodating cavity 320 via a circular gear portion 360 at one end, which meshes with the drive gear 340. When the swing motor 330 operates, it drives the swing arm 350 to reciprocate within a certain angle around its axis connected to the housing via gear transmission. A rotary cutting assembly is installed at the other end of the swing arm 350. The rotary cutting assembly includes a cutting drive motor 370 and a cutting wheel 380 that is directly driven by the motor to rotate at high speed. Therefore, the cutting wheel 380 possesses two movements simultaneously: first, high-speed rotation around its own axis, generating powerful local cutting and crushing capabilities; second, reciprocating oscillation with the swing arm 350, which expands the working range of the cutting wheel 380 from a "point" to a "fan," covering a larger radial area within the pipe. In particular, it effectively cleans deposits located on the sides, top, and bottom of the pipe wall, avoiding the cleaning dead zones that may exist with fixed crushing heads. This combined "rotation and oscillation" motion mode enables it to handle blockages of varying hardness and shape: for hard, lumpy materials, the high-speed rotating cutting wheel 380 mills and crushes them; for soft but highly adhesive sludge, the oscillating motion produces scraping and peeling effects.

[0054] In addition, considering the diversity of blockages, the cutting wheel 380 can adopt a modular design, which makes it easy to quickly change the blades with different tooth shapes, materials (such as cemented carbide, diamond coating) or structures (such as hammer head, toothed disc) according to the actual type of blockage encountered (such as rock, solidified grease, fibrous material), thereby further improving the crushing efficiency and targeting.

[0055] In some extended solutions, auxiliary dredging components can be integrated into the crushing support housing 310. For example, high-pressure water nozzles can be arranged near the cutting wheel 380 to pre-soften or disperse some of the blockages using water jets, thereby reducing cutting resistance. Alternatively, a small camera and lighting can be installed to transmit the blockage situation in front to the external operator in real time, enabling visualized and precise crushing.

[0056] like Figure 4 As shown, the stable support of the equipment within the pipeline depends on the precise movement of the three folding support devices mentioned above. To gain a deeper understanding of its working principle, its core adjustment mechanism is described in detail below. Each folding support device includes: a cylindrical support housing 210, an adjustment motor built into the housing, a lead screw 220 arranged axially, a triangular support seat 230, two triangular sliding seats 240, and three sets of support adjustment components.

[0057] The regulating motor serves as the power source, and its output end is connected to one end of the lead screw 220 via a coupling. This end of the lead screw 220 is supported on the support housing 210 by a bearing, allowing it to rotate freely. The other end of the lead screw 220 is rotatably connected to an adjacent front or rear equipment module (such as the traction joint 100, the housing of the crushing device 300, the housing of the power supply device 400, or the front support of the collecting device 500) via another set of bearings, but axial movement is not restricted, thereby connecting the entire folding support device in series in the equipment.

[0058] The design of the lead screw 220 includes a smooth, polished section in the middle, with oppositely threaded sections (left-hand and right-hand threads) on both sides. A triangular support 230 is fitted onto the middle section of the polished section via a bearing, allowing it to rotate freely relative to the polished section, but is constrained axially. A triangular sliding seat 240 is screwed onto each of the two oppositely threaded sections. Specifically, each triangular sliding seat 240 has three outwardly radially protruding first corner portions 241, and the triangular support 230 also has three outwardly radially protruding second corner portions 231. These corner portions are evenly distributed circumferentially (e.g., spaced 220 degrees apart), and the first corner portion 241 of one triangular sliding seat 240 and one second corner portion 231 of one triangular support 230 are approximately aligned axially, forming a pair. A support adjustment assembly connects each pair (one first corner portion 241 and one second corner portion 231). When the adjusting motor drives the lead screw 220 to rotate, the two triangular sliding seats 240, due to their engagement with threads of opposite directions, will move in opposite directions or in a straight line along the axis of the lead screw 220. The movement of the triangular sliding seats 240, through the support adjusting assembly, converts the linear motion into the radial extension and retraction motion of the support wheel 270.

[0059] Specifically, when the two triangular sliding seats 240 move towards each other (closer to the triangular support seat 230), they push the support adjustment component outward until it contacts and presses against the inner wall of the pipe; conversely, when the two triangular sliding seats 240 move away from each other (away from the triangular support seat 230), they drive the support wheel 270 to retract towards the central axis of the equipment. By controlling the direction and angle of the adjustment motor, the extension radius of the support wheel 270 can be precisely controlled, achieving self-adaptation to different pipe diameters.

[0060] The support adjustment assembly is the direct mechanism for realizing motion conversion and force transmission, and its design reliability directly affects the stability of the support. The support adjustment assembly in this solution includes a first rotating frame 250, a second rotating frame 260, and a support wheel 270. One end of the first rotating frame 250 is rotatably connected to the second corner portion 231 of the triangular support seat 230 via a pin; the other end of the first rotating frame 250 is fitted with the support wheel 270 via another pin, allowing the support wheel 270 to rotate around this axis to reduce sliding friction with the pipe wall. One end of the second rotating frame 260 is rotatably connected to the first corner portion 241 of the triangular sliding seat 240 via a pin, and its other end is rotatably connected to a point in the middle of the first rotating frame 250 via a pin.

[0061] When the triangular sliding seat 240 moves axially, the second rotating frame 260 pushes or pulls the first rotating frame 250, forcing the first rotating frame 250 to rotate around its connection point with the triangular support seat 230, thereby achieving the radial extension or retraction of the support wheel 270. This mechanism has the advantages of smooth transmission, good structural rigidity, and moderate force amplification coefficient. As a component that directly contacts the pipe wall, the design of the support wheel 270 also needs to be considered. The outer surface of the wheel can be covered with materials with high friction coefficient, wear resistance, and minimal damage to the pipe lining (such as cement, ceramics, polyethylene), such as engineering rubber or polyurethane, to provide sufficient traction and cushioning.

[0062] To improve sealing performance, rubber telescopic sleeves are fitted on the triangular support 230, triangular sliding seat 240, support housing 210, and on the corresponding traction joint 100, crushing device 300 housing, power supply device 400 housing, and front end bracket of collecting device 500 connected to the other end of screw 220. This improves the sealing and protection of screw 220 without affecting the movement of triangular support 230 and the rotation of screw 220.

[0063] To ensure that the triangular sliding seat 240 and triangular support seat 230 move only along a preset axial direction during the adjustment of the folding support device without uncontrollable rotation or tilting, a guide mechanism is also provided in this embodiment. Preferably, each folding support device has three guide rods 280, with both ends of the guide rods 280 fixed to the support housing 210 and the corresponding connection points of the adjacent front or rear end equipment modules. The three guide rods 280 are preferably evenly distributed circumferentially. Correspondingly, guide holes are machined on each first corner 241 of the triangular sliding seat 240 and each second corner 231 of the triangular support seat 230 for sliding engagement with the three guide rods 280. Thus, regardless of how the lead screw 220 drives the triangular sliding seat 240, the guide rods 280 are strictly limited to translational movement along the equipment axis, while also preventing the triangular support seat 230 from rotating or tilting. This ensures the synchronicity and accuracy of the movement of all support adjustment components, allowing the three support wheels 270 to always maintain synchronous extension and contraction on the same circumferential surface, achieving stable support.

[0064] The power supply unit 400 in this solution is an independent module, mainly consisting of a robust, sealed battery housing and a battery pack housed within it. The battery housing must possess excellent waterproof, dustproof, shockproof, and corrosion-resistant properties to withstand the harsh environment inside the pipes, which may contain moisture and corrosive components. The battery pack, acting as an energy storage unit, provides power to all electrical components in the equipment, including but not limited to: the regulating motors in each folding support device, the swing motor 330 and cutting drive motor 370 in the crushing device 300, the conveying motor in the collecting device 500, and corresponding controllers, sensors, and communication modules. Power lines extend from the battery, pass through the connection structures between modules or dedicated cable trays, and reliably connect to each electrical terminal. The controller can be integrated within the power supply unit 400 or set up independently, responsible for receiving external commands or coordinating and controlling the working sequence, direction, and speed of each motor according to a preset program, achieving coordinated operation of the entire equipment. In addition, to cope with emergencies or expand functionality, the power supply unit 400 can also be reserved with an external power interface, allowing mains power or generator power to be introduced directly from outside the conduit via cable as a supplement or replacement for the built-in battery.

[0065] The final step in dredging is to effectively remove the broken blockages from the pipe, so the performance of the collection device 500 directly affects the overall dredging efficiency.

[0066] like Figure 5 As shown, the collection device 500 of this scheme includes a collection bin 510, a conveying device, and a collection bag 520. The collection bin 510 is a hollow cylindrical or box-shaped container, with its front end connected to a motor bin 530 via a bracket. A conveying motor is fixed inside the motor bin 530. The conveying device includes a conveying shaft 550 penetrating the collection bin 510. The front end of the conveying shaft 550 is connected to the cover of the motor bin 530 via a bearing and is connected to the output end of the conveying motor; the rear end of the conveying shaft is supported on a bracket at the rear end of the collection bin 510 via another bearing. Spiral blades 540 (i.e., an auger) are installed on the conveying shaft, with a blade diameter slightly smaller than the inner diameter of the collection bin 510. When the conveying motor drives the conveying shaft to rotate, the spiral blades 540 rotate synchronously. Crushed sludge, fragments, and other materials enter the front end of the collection bin 510 from behind the crushing device 300. The rotating spiral blades 540 generate axial thrust on the materials, continuously conveying them backward along the collection bin 510. This spiral conveyor system is continuous and stable, capable of handling various materials from fine particles to small lumps, and is not prone to clogging.

[0067] To accommodate the continuously supplied materials and facilitate their removal from the pipeline after operation, a detachable collection bag 520 is connected to the rear opening of the collection bin 510. The collection bag 520 is typically made of a high-strength, wear-resistant, and waterproof flexible material (such as coated canvas or reinforced PVC). When the collection bag 520 is full, it can be disassembled, sealed, and removed for disposal. An empty collection bag 520 can then be installed to continue operation, greatly improving operational continuity and avoiding the drawbacks of traditional dredging equipment requiring frequent pipeline exits to dump waste.

[0068] To achieve quick and reliable connection and separation between the storage bag 520 and the storage compartment 510, a specialized connection component needs to be designed. This solution provides a simple and practical hook-and-loop fastener scheme. Specifically, several hooks (such as D-rings or fixed hooks) are evenly distributed along the rear opening edge of the storage compartment 510. Correspondingly, hooks matching the number and position of the hooks are sewn or fixed to the edge of the opening of the storage bag 520. During installation, simply hook the hooks of the storage bag 520 opening one by one into the hooks of the storage compartment 510; during disassembly, the operation is reversed to quickly remove the fully loaded storage bag 520. This mechanical connection method is reliable, low-cost, and easy to operate, even in humid or dirty environments. Furthermore, the connection component can take other forms. For example, a quick-release clamp structure can be used, where rotating a locking ring simultaneously presses and seals the bag opening, achieving mechanical locking.

[0069] In summary, the dredging equipment for drainage pipelines provided in this embodiment of the invention, through the organic combination of a traction joint 100, three adaptive folding support devices arranged in series, a compound motion crushing device 300, a built-in power supply device 400, and a spiral conveyor and detachable collection device 500, constructs a highly integrated, fully functional, and highly adaptable pipeline dredging system.

[0070] Its workflow is as follows:

[0071] External traction forces drive the entire device into the pipeline via traction joint 100. Three folding support devices automatically or manually unfold according to the pipeline's inner diameter, providing stable support and alignment for the device. Upon reaching the blockage area, the crushing device 300 activates, its swinging and high-speed rotating cutting wheel 380 efficiently crushing various blockages, including hard, soft, and hardened materials. Smaller particles and silt, under gravity and the device's forward movement, are guided to the inlet of the collection device 500. The screw conveyor inside the collection device 500 continuously transports the material backward and loads it into a removable collection bag 520. When the collection bag 520 is nearly full or the work section is completed, the device can exit the pipeline, replace the collection bag 520, and continue operation. Throughout the process, the power supply device 400 provides power for all actions, and the controller coordinates the orderly operation of each unit. This equipment is particularly suitable for dredging sections of urban drainage networks and industrial pipelines with severe sedimentation, hardened blockages, and varying pipe diameters.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dredging device for drainage pipelines, characterized in that, It includes a traction joint, a first folding support device, a second folding support device, a third folding support device, a crushing device, a power supply device, and a collection device; The traction joint, crushing device, power supply device, and collection device are arranged sequentially from front to back; The first folding support device is connected to the front of the traction joint and the crushing device; The second folding support device is connected to the rear of the crushing device and the front of the power supply device; The third folding support device is connected to the rear of the power supply device and the front of the collection device; The first, second, and third folding support devices have the same structure and are used to contact the inner wall of the pipe, respectively, and can be extended and adjusted according to the diameter of the pipe. The crushing device has a rotary cutting component for crushing blockages of different hardness and shape.

2. The dredging equipment for drainage pipelines according to claim 1, characterized in that, The crushing device includes a crushing support housing, a swing motor, a swing arm, and a rotary cutting assembly; The crushing support shell has an internal accommodating cavity, the swing motor is fixed inside the accommodating cavity, the first end of the swing arm is provided with a circular gear, the middle part of the circular gear is rotatably connected to the inner wall of the accommodating cavity through a shaft, and a drive gear is also connected inside the accommodating cavity through a shaft. The swing motor is connected to the crushing support housing, and the output shaft of the swing motor is connected to the shaft of the drive gear. The rotary cutting assembly includes a cutting drive motor and a cutting wheel. The second end of the swing arm is connected to the cutting wheel via a shaft. The cutting drive motor is fixed on the swing arm and connected to the shaft of the cutting wheel.

3. The dredging equipment for drainage pipelines according to claim 1, characterized in that, The first folding support device, the second folding support device, and the third folding support device all include a support housing, an adjusting motor, a lead screw, a triangular support base, and a support adjusting assembly; The adjusting motor is fixed inside the support housing; One end of the lead screw is mounted to the support housing via a bearing, and the adjusting motor is connected to the end of the lead screw. The other end of the lead screw is rotatably connected to the corresponding traction joint, crushing device, power supply device, or collection device via a bearing. The middle part of the lead screw is set as a smooth rod part, and the triangular support is rotatably connected to the smooth rod part through a bearing; The two sides of the smooth rod are provided with threaded connection parts with opposite rotation directions. Each of the two threaded connection parts is threaded with a triangular sliding seat. Furthermore, the three protruding first corners of the triangular sliding seat correspond one-to-one with the protruding second corners of the triangular support seat. Each of the first and second corner sections is rotatably connected by a shaft to a support and adjustment assembly for contacting the inside of the pipe.

4. The dredging equipment for drainage pipelines according to claim 3, characterized in that, The support adjustment assembly includes a first rotating frame, a second rotating frame, and support wheels; One end of the first rotating frame is rotatably connected to the second corner via a shaft, and the other end of the first rotating frame is rotatably connected to the support wheel via a shaft. One end of the second rotating frame is rotatably connected to the first corner via a shaft, and the other end of the second rotating frame is rotatably connected to the first rotating frame via a shaft.

5. The dredging equipment for drainage pipelines according to claim 4, characterized in that, The included angle between the three first corners of the triangular sliding seat is 220 degrees, and the included angle between the three second corners of the triangular support seat is 220 degrees.

6. The dredging equipment for drainage pipelines according to claim 5, characterized in that, The first folding support device, the second folding support device, and the third folding support device each include three guide rods, with both ends of the guide rods fixed between the support housing and the corresponding traction joint, crushing device, power supply device, or collection device. Guide holes are provided on the first and second corner portions to slide with the corresponding guide rods.

7. The dredging equipment for drainage pipelines according to claim 1, characterized in that, The power supply device includes a battery protective case and a storage battery. The storage battery is housed inside the battery protective case and is used to connect to the controller, the first folding support device, the second folding support device, the third folding support device, and the crushing device via wiring.

8. The dredging equipment for drainage pipelines according to claim 1, characterized in that, The collection device includes a storage compartment and a conveying device; The front end of the storage compartment is connected to the motor compartment via a bracket; The conveying device includes a conveying motor, a conveying shaft, and spiral blades. The conveying motor is fixed inside the motor compartment, and the spiral blades are mounted on the conveying shaft and located inside the storage compartment. One end of the conveying shaft is rotatably connected to the cover of the motor compartment via a bearing, and the conveying motor is connected to the conveying shaft. The other end of the conveying shaft is rotatably connected to the rear support of the storage compartment via a bearing.

9. The dredging equipment for drainage pipelines according to claim 8, characterized in that, The collection device also includes a storage bag, the opening of which is detachably connected to the rear end of the storage compartment via a connecting component.

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