Tunnel drainage crystallization clogging cleaning device

By designing a tunnel drainage crystallization blockage cleaning device that combines a high-pressure water pump-driven rotary spray head and a double spray bar, the problem of incomplete removal of crystallization blockage in tunnel drainage pipes in existing technologies has been solved, achieving efficient and safe cleaning results.

CN121892452AActive Publication Date: 2026-04-21GUANGDONG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG UNIV OF TECH
Filing Date
2026-03-24
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing technologies are insufficient to completely remove mineral crystal blockages in tunnel drainage pipes. High-pressure water jets are ineffective at removing hard crystals, mechanical dredging equipment is prone to damaging pipe walls, and there is a lack of time-series control for chemical softeners.

Method used

A tunnel drainage crystallization blockage cleaning device was designed, which combines a high-pressure water pump to drive a rotating spray head, double spray bars and silt-breaking wing plates to achieve the synergistic effect of low-speed mechanical silt removal and chemical softening agent. Through the meshing of the transmission tooth plate and the positioning tenon plate, targeted cleaning is achieved for different stages of blockage. The device is safe and controllable by adjusting the auxiliary components to achieve the clutch function.

Benefits of technology

It achieves efficient cleaning of crystallized blockages in tunnel drainage pipes, protects the pipe walls from damage, ensures the stability and reliability of the device within the pipe, and achieves highly efficient cleaning results.

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Abstract

The invention relates to the technical field of pipeline cleaning, in particular to a tunnel drainage crystallization clogging cleaning device which comprises a connecting platform, a mounting beam, a tool connecting plate, an anti-scaling agent storage barrel and two center sleeve plates. The two transverse connecting beams are arranged on the two sides, opposite to each other, of the two transverse connecting beams, rotary spraying heads are arranged on the sides, opposite to each other, of the two transverse connecting beams, and spiral desilting assemblies used for removing clogging are arranged on the outer portions of the rotary spraying heads. A transmission toothed plate and a positioning tenon plate are meshed to drive a silt breaking wing plate to synchronously implement low-speed mechanical silt removal, a descaling agent storage barrel and a four-way spray head located on the rear portion spray a descaling agent to the pipe wall, an electric telescopic driving rod is used for controlling separation and reunion of a transmission mechanism, and double spray rods can be separated from a load and recover a high-speed rotating state during subsequent cleaning, softening and crystallization. Therefore, crystals with different clogging stages and different hardness can be cleaned in a targeted manner.
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Description

Technical Field

[0001] This invention relates to the technical field of pipeline cleaning, and in particular to a device for cleaning crystallization blockages in tunnel drainage systems. Background Technology

[0002] In limestone and carbonate rock areas, highway and railway tunnels, during their long-term service, accumulate calcium-rich groundwater. 2 + HCO3 - Plasma easily causes carbonate crystal deposition in drainage holes, drainage pipes, and at the interface with shotcrete, forming accumulated crystals that gradually reduce the water flow cross-section of the drainage system or even completely block it. In the maintenance of drainage pipes in tunnels, mineral crystal blockage inside the pipes is a common and difficult problem to completely remove. Currently, it is mainly treated by high-pressure water jet or mechanical sludge removal equipment, but these methods have obvious shortcomings: high-pressure water jet is difficult to remove hard crystals and the cleaning is not thorough. At the same time, in the existing high-pressure water flushing, the chemical softener is often directly flushed after spraying, which lacks the timing control of the chemical softener spraying. Mechanical direct sludge removal is too fast and can easily damage the pipe wall. Moreover, existing equipment often sets up the sludge removal head and the spray nozzle separately and uses multiple drive sources, making it difficult to achieve rapid and coordinated switching between "low-speed crushing of hard objects" and "high-speed flushing of residues" in the same operation process. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, this invention provides a tunnel drainage crystallization blockage cleaning device.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a tunnel drainage crystallization and sludge cleaning device, comprising a connecting platform, an installation beam fixedly connected to the outside of the connecting platform, the installation beam being a U-shaped plate, a tooling connecting plate for connecting to an external robotic arm fixedly connected to the end of the installation beam away from the connecting platform, the tooling connecting plate having several openings for connection on its outside, a descaling agent storage cylinder disposed inside the connecting platform, central sleeve plates fixedly connected to both sides of the outside of the descaling agent storage cylinder, the ends of the two central sleeve plates being fixedly connected to the two sides inside the connecting platform respectively, the descaling agent storage cylinder being positioned at the center inside the connecting platform by the two central sleeve plates, a liquid replenishment pipe disposed outside the descaling agent storage cylinder, a four-way nozzle for spraying liquid disposed outside the descaling agent storage cylinder, the liquid outlet of the descaling agent storage cylinder being interconnected with the four-way nozzle by a micro water pump, and transverse connecting beams fixedly connected to the outside of the two central sleeve plates. A rotary spray head for spraying the inner wall of the drain pipe is installed on one side of the connecting beam. The rotary spray head includes a jet pipe, a double spray bar, and an impeller drive seat. The jet pipe is fixedly connected to one side of the two transverse connecting beams and is located outside the descaling agent storage tank on the side away from the tooling connecting plate. The impeller drive seat is fixedly connected to the outside of the jet pipe and communicates with the jet pipe. The double spray bar is rotatably connected to the end of the impeller drive seat away from the jet pipe. The water pressure of the water flow drives the impeller inside the impeller drive seat and makes the double spray bar rotate. This spraying principle is a conventional existing technology and will not be described in detail here. A delivery pipe is fixedly connected to the outside of the jet pipe. The delivery pipe is fixedly connected to the outside of the descaling agent storage tank and communicates with the inside of the jet pipe to deliver water to the inside of the jet pipe. A booster water pump is fixedly connected to the end of the delivery pipe away from the jet pipe. The booster water pump is fixedly connected to the outside of the mounting beam and the inlet of the booster water pump is connected to an external water pipe.

[0005] As a preferred embodiment of the present invention, a spiral sludge-clearing assembly for clearing blockages is provided on the outside of the rotary spray head. The spiral sludge-clearing assembly includes a transmission toothed plate and a drive ring. The transmission toothed plate is fixedly connected to the outside of the dual spray bar. Two positioning tenons for inserting into the transmission toothed plate are symmetrically fixedly connected to the inner ring of the drive ring. Two sludge-breaking wing plates for sludge clearing are fixedly connected to the side of the drive ring away from the connecting platform. The two sludge-breaking wing plates are symmetrically arranged outside the drive ring. Each of the two positioning tenons has a slot at one end facing each other. The positioning tenons engage with the teeth on the outside of the transmission toothed plate through the slot. After engagement, the dual spray bar rotates, driving the transmission toothed plate and causing the positioning tenons and drive ring to rotate synchronously. The rotation of the drive ring drives the two sludge-breaking wing plates to rotate and clean the blockage crystals located outside the dual spray bar. A connecting push rod is fixedly connected to the outside of each positioning tenon. A square sleeve plate is movably connected to the outside of each connecting push rod. By pulling the square sleeve plate, the two positioning tenons are moved, thereby separating the slot from the teeth on the outside of the transmission toothed plate.

[0006] As a preferred embodiment of the present invention, the drive ring is externally provided with an adjustment auxiliary component for controlling its connection with the transmission gear plate. The adjustment auxiliary component includes a bearing, with two connecting horizontal plates fixedly connected to the inner ring of the bearing. The two connecting horizontal plates are respectively fixedly connected to the outside of two central sleeve plates. Two square sleeve plates are fixedly connected to the outer ring of the bearing. The outer ring of the bearing rotates with the two square sleeve plates and assists the drive ring in rotating. The adjustment auxiliary component also includes a limit ring disk, an electric telescopic drive rod, and an arc-shaped stop plate. The electric telescopic drive rod is fixedly embedded in the outside of the connecting platform. The output end of the electric telescopic drive rod is fixedly connected to a limit chuck. The inner edge of the limit ring disk is movably connected to the inside of the limit chuck. The outer side of the positioning ring disk, away from the connecting platform, is fixedly connected to two connecting push rods. The rotation of the two connecting push rods drives the positioning ring disk to rotate synchronously. The rotation of the positioning ring disk causes its inner ring edge to rotate synchronously with the inside of the positioning chuck. The output end of the electric telescopic drive rod drives the positioning chuck to move laterally. When the positioning chuck moves, it drives the positioning ring disk and pulls the two connecting push rods to separate the positioning tenon plate from the outside of the transmission tooth plate. The number of arc-shaped abutments is set to two. The two arc-shaped abutments are fixedly connected to the two sides of the outside of the connecting platform, and the arc-shaped abutments are set on the side of the positioning ring disk closer to the connecting platform. The arc-shaped abutments are used to limit the lateral movement distance of the positioning ring disk to prevent the positioning ring disk from moving too much.

[0007] As a preferred embodiment of the present invention, cleaning propulsion components for assisting the connecting platform to move inside the drain pipe are provided on both sides of the outer side of the mounting beam. Each cleaning propulsion component includes a rotating base and a rotating side plate. The rotating base is fixedly connected to the outside of the connecting platform, and the rotating side plate is rotatably connected to the inside of the rotating base via a rotating shaft. A side slot is opened at the end of the rotating side plate away from the rotating base, and a crawling wheel is rotatably connected inside the side slot. An outer slot is opened on the side of the rotating side plate near the mounting beam, and an empty slot is opened inside the outer slot. A bending spring is movably connected inside the outer slot, and the ends of the bending spring extend to both sides inside the outer slot. The end of the bending spring away from the inside of the outer slot is fixedly connected to the side of the outer side of the mounting beam. A guide arc rod is movably connected inside the bending spring, and the guide arc rod is fixedly connected to the side of the outer side of the mounting beam. The guide arc rod is used to support the bending spring and prevent the bending spring from bending and shrinking too much.

[0008] Compared with the prior art, the beneficial effects that this invention can achieve are: 1. Compared with the prior art, this invention uses a booster pump to drive a rotating spray head for high-pressure pre-rinsing, and utilizes the rotational power of the double spray rods to drive the silt-breaking blades to simultaneously perform low-speed mechanical silt removal through the meshing of the transmission tooth plate and the positioning tenon plate. While breaking up hard crystals, the rotation speed is limited by its own resistance mechanism, which also protects the spray head and prevents damage to the pipe wall. Subsequently, the descaling agent storage tank and the four-way spray head at the rear spray descaling agent onto the pipe wall to achieve chemical softening. The clutch of the transmission mechanism is controlled by the electric telescopic drive rod, which can disengage the double spray rods from the load and restore them to high-speed rotation during subsequent cleaning of softened crystals. This allows for targeted cleaning of different stages of siltation and crystal hardness. This invention integrates high-pressure flushing, mechanical silt removal and chemical softening functions, achieving efficient cleaning of crystallized siltation in tunnel drainage pipes.

[0009] 2. This invention uses the continuous elastic pressure provided by the bending spring to drive the rotating side plate so that the crawling wheel always keeps in close contact with the inner wall of the drainage pipe, ensuring the radial stability of the connecting platform when it travels in the pipe. At the same time, the guide arc rod provides guidance and limit for the movement of the bending spring, preventing it from bending excessively, further enhancing the mechanism's self-adaptability and movement reliability in the pipe, and realizing the smooth and stable advancement of the device in the drainage pipe.

[0010] 3. This invention achieves a safe and controllable clutch function for the dredging transmission mechanism by setting up an adjustment auxiliary component. The limiting ring disc is linked to the positioning tenon plate through a connecting push rod. Its axial movement can precisely control the engagement and disengagement of the positioning tenon plate and the transmission tooth plate. Under the drive of the electric telescopic drive rod, the limiting chuck drives the limiting ring disc to perform a stable lateral displacement, thereby remotely and automatically completing the switching of working modes. The arc-shaped stop plate, as a rigid limiting mechanism, effectively limits the maximum travel of the limiting ring disc, preventing it from disengaging from the preset working position or damaging the connecting parts due to overshoot, thus ensuring the controllability of the entire clutch action and the safety of the mechanism. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the drive ring of the present invention; Figure 3 This is a schematic diagram of the connection platform of the present invention; Figure 4 This is a schematic diagram of the structure of the connecting platform of the present invention extending into the drain pipe; Figure 5 This is a schematic diagram of the structure of the descaling agent storage cylinder of the present invention; Figure 6 This is a schematic diagram of the structure of the beam used in this invention; Figure 7 This is a schematic diagram of the structure of the rotating spray head of the present invention; Figure 8This is a schematic diagram of the structure of the silt-clearing wing plate of the present invention; Figure 9 For the present invention Figure 8 A magnified schematic diagram of the structure at point A in the middle.

[0012] The components include: 10. Connecting platform; 11. Mounting beam; 12. Tooling connecting plate; 13. Descaling agent storage tank; 14. Center sleeve plate; 15. Conveying pipeline; 16. Rotary spray head; 161. Jet pipe; 162. Double spray bar; 163. Impeller drive base; 17. Booster water pump; 18. Horizontal connecting beam; 19. Four-way nozzle; 20. Transmission gear plate; 21. Drive ring; 22. Silt-clearing wing plate; 2 3. Positioning tenon plate; 24. Connecting push rod; 25. Square sleeve plate; 26. Slot opening; 30. Bearing; 31. Limiting ring plate; 32. Electric telescopic drive rod; 33. Limiting chuck; 34. Connecting cross plate; 35. Arc-shaped abutment plate; 40. Rotating base; 41. Rotating side plate; 42. Empty slot opening; 43. Outer slot opening; 44. Crawling wheel; 45. Side slot opening; 46. Bending spring; 47. Guide arc rod. Detailed Implementation

[0013] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0014] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, a tunnel drainage crystallization and sludge cleaning device includes a connecting platform 10, which is annular in shape. An installation beam 11, a U-shaped plate, is fixedly connected to the outside of the connecting platform 10. A tooling connecting plate 12 for connecting to an external robotic arm is fixedly connected to one end of the installation beam 11 away from the connecting platform 10. The tooling connecting plate 12 has several openings for connection. A descaling agent storage cylinder 13 is installed inside the connecting platform 10. Central sleeve plates 14 are fixedly connected to both sides of the descaling agent storage cylinder 13. The ends of plates 14 that are far apart are fixedly connected to both sides inside the connecting platform 10. The descaling agent storage tank 13 is positioned at the center inside the connecting platform 10 by two central sleeve plates 14. A replenishment pipe is provided on the outside of the descaling agent storage tank 13, and a four-way nozzle 19 for spraying liquid is provided on the outside of the descaling agent storage tank 13. The outlet of the descaling agent storage tank 13 is interconnected with the four-way nozzle 19 by a micro water pump. Transverse connecting beams 18 are fixedly connected to the outside of both central sleeve plates 14. A drain pipe is provided on one side of the two transverse connecting beams 18 facing each other. A rotary spray head 16 is used for spraying and cleaning the inner wall. The rotary spray head 16 includes a jet pipe 161, a double spray bar 162, and an impeller drive seat 163. The jet pipe 161 is fixedly connected to one side of the two transverse connecting beams 18 facing each other, and is located outside the descaling agent storage tank 13 on the side away from the tooling connecting plate 12. The impeller drive seat 163 is fixedly connected to the outside of the jet pipe 161 and communicates with the jet pipe 161. The double spray bar 162 is rotatably connected to the end of the impeller drive seat 163 away from the jet pipe 161. The impeller drive seat 163 is driven by the water pressure of the water flow. 3. The internal impeller rotates the double spray bar 162. The spraying principle is a conventional technical method and will not be described in detail here. The external of the jet pipe 161 is fixedly connected to the delivery pipe 15. The delivery pipe 15 is fixedly connected to the outside of the descaling agent storage tank 13. The delivery pipe 15 is connected to the inside of the jet pipe 161 and delivers water to the inside of the jet pipe 161. The end of the delivery pipe 15 away from the jet pipe 161 is fixedly connected to the booster water pump 17. The booster water pump 17 is fixedly connected to the outside of the mounting beam 11. The inlet of the booster water pump 17 is connected to the external water pipe.

[0015] After the external robotic arm is connected to the tooling connection plate 12, the tooling connection plate 12 and the connection platform 10 are inserted into the drain pipe. The external water pipe, together with the booster water pump 17, delivers water flow and pressurizes the inside of the rotating spray head 16. The high-pressure water flow impacts the impeller drive seat 163 and causes it to drive the double spray bar 162 to rotate inside the drain pipe. The rotation of the double spray bar 162 pre-sprays and cleans the inner wall of the drain pipe.

[0016] like Figure 1 , Figure 2 , Figure 3 , Figure 6, Figure 7 and Figure 8 As shown, the rotating spray head 16 is externally equipped with a spiral sludge-removing assembly for clearing blockages. The spiral sludge-removing assembly includes a transmission toothed plate 20 and a drive ring 21. The transmission toothed plate 20 is fixedly connected to the outside of the double spray bar 162. The inner ring of the drive ring 21 is symmetrically fixedly connected with two positioning tenons 23 for inserting into the transmission toothed plate 20. On the side of the drive ring 21 away from the connecting platform 10, two sludge-breaking wing plates 22 for sludge removal are fixedly connected. The two sludge-breaking wing plates 22 are symmetrically arranged outside the drive ring 21. The corners of the sludge-breaking wing plates 22 are all sharp, and the sludge-breaking wing plates 22 are folded. When rotating, the two sludge-breaking wing plates 22 form a cone shape. The two positioning tenons... Each of the two positioning tenons 23 has a slot 26 at one end facing each other. The positioning tenon 23 engages with the teeth on the outside of the transmission gear plate 20 through the slot 26. After engagement, the double spray bar 162 rotates to drive the transmission gear plate 20 and make the positioning tenon 23 and the drive ring 21 rotate synchronously. The rotation of the drive ring 21 drives the two silt-breaking wings 22 to rotate and clean the silt crystals located outside the double spray bar 162. Each positioning tenon 23 is fixedly connected to a connecting push rod 24. Each connecting push rod 24 is movably connected to a square sleeve plate 25. By pulling the square sleeve plate 25, the two positioning tenons 23 are moved, thereby separating the slot 26 from the teeth on the outside of the transmission gear plate 20.

[0017] When the inner wall of the drainage pipe is pre-cleaned by the dual spray bar 162, the dual spray bar 162 drives the transmission gear plate 20 and causes the slot opening 26 and the positioning tenon plate 23 to rotate synchronously. The rotation of the two positioning tenon plates 23 drives the drive ring 21 and causes the two silt-breaking wing plates 22 to rotate synchronously outside the dual spray bar 162. The rotation of the silt-breaking wing plates 22 cleans the silt and crystals inside the drainage pipe. At the same time, the rotation of the drive ring 21 and the two silt-breaking wing plates 22 generates resistance to the rotation of the dual spray bar 162, reducing the resistance of the dual spray bar 162. While rotating at 62 rpm, the silt-breaking wing plate 22 protects the double spray bar 162 and limits the rotation speed of the silt-breaking wing plate 22 to prevent it from colliding with the inner wall of the drainage pipe and causing damage. This allows the double spray bar 162 to stably rotate and spray the inner wall of the drainage pipe. After the double spray bar 162 sprays the inner wall, the descaling agent storage cylinder 13 located behind the double spray bar 162, together with the four-way nozzle 19 located outside it, sprays the inner wall of the drainage pipe with descaling agent. The descaling agent reacts chemically with the crystals on the inner wall of the drainage pipe to soften the hard crystals.

[0018] like Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the drive ring 21 is externally equipped with an adjustment auxiliary component for controlling its connection with the transmission gear plate 20. The adjustment auxiliary component includes a bearing 30, the inner ring of which is fixedly connected to two connecting horizontal plates 34. The two connecting horizontal plates 34 are respectively fixedly connected to the outside of two central sleeve plates 14. Two square sleeve plates 25 are fixedly connected to the outer ring of the bearing 30. The outer ring of the bearing 30 rotates with the two square sleeve plates 25 and assists the drive ring 21 in rotating. The adjustment auxiliary component also includes a limit ring disk 31, an electric telescopic drive rod 32, and an arc-shaped abutment plate 35. The electric telescopic drive rod 32 is fixedly embedded in the outside of the connecting platform 10. The output end of the electric telescopic drive rod 32 is fixedly connected to a limit chuck 33. The inner edge of the limit ring disk 31 is movably connected to the inside of the limit chuck 33. The outer edge of the limit ring disk 31 is far from the inside of the limit chuck 33. One side of the connecting platform 10 is fixedly connected to two connecting push rods 24. The rotation of the two connecting push rods 24 drives the limiting ring disk 31 to rotate synchronously. The rotation of the limiting ring disk 31 causes its inner ring edge to rotate synchronously with the inside of the limiting chuck 33. The output end of the electric telescopic drive rod 32 drives the limiting chuck 33 to move laterally. When the limiting chuck 33 moves, it drives the limiting ring disk 31 and pulls the two connecting push rods 24 to separate the positioning tenon plate 23 from the slot 26 outside the transmission tooth plate 20. The number of arc-shaped abutments 35 is set to two. The two arc-shaped abutments 35 are fixedly connected to the two sides outside the connecting platform 10, and the arc-shaped abutments 35 are set on the side of the limiting ring disk 31 close to the connecting platform 10. The arc-shaped abutments 35 are used to limit the lateral movement distance of the limiting ring disk 31 to prevent the limiting ring disk 31 from moving too much.

[0019] After the dual spray bar 162 is extended deep into the drainage pipe, the pre-sprayed area is softened by the spray of descaling agent. The output end of the electric telescopic drive rod 32 controls the limiting chuck 33 to drive the limiting ring plate 31 and the two connecting push rods 24 to move towards the connecting platform 10. The two connecting push rods 24 drive the two positioning tenon plates 23 and separate the two slots 26 from the teeth on the outside of the transmission tooth plate 20. At this time, the power generated by the rotation of the dual spray bar 162 is released, so that the dual spray bar 162 rotates at high speed inside the drainage pipe and sprays and removes the softened crystals. The crystals and descaling agent are uniformly removed by the water flow to avoid the residue of residual liquid and dirt.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, cleaning propulsion assemblies for assisting the connection platform 10 in moving inside the drain pipe are provided on both sides of the outer side of the mounting beam 11. Each cleaning propulsion assembly includes a rotating base 40 and a rotating side plate 41. The rotating base 40 is fixedly connected to the outside of the connection platform 10, and the rotating side plate 41 is rotatably connected to the inside of the rotating base 40 via a rotating shaft. A side slot 45 is opened at the end of the rotating side plate 41 away from the rotating base 40. A crawler wheel 44 is rotatably connected inside the side slot 45. An outer slot 43 is opened on the outer side of the rotating side plate 41 near the mounting beam 11. An empty slot 42 is opened inside the outer slot 43. A bending spring 46 is movably connected inside the outer slot 43. The port corners extend to both sides inside the outer slot 43. The end of the bending spring 46 away from the inside of the outer slot 43 is fixedly connected to the side outside the mounting beam 11. The inside of the bending spring 46 is movably connected to the guide arc rod 47, which is fixedly connected to the side outside the mounting beam 11. The guide arc rod 47 is used to support the bending spring 46 and prevent the bending spring 46 from bending and shrinking too much. When the rotating side plate 41 rotates towards the mounting beam 11 and inside the rotating base 40, the rotating side plate 41 drives the bending spring 46 to shrink outside the guide arc rod 47. During the continuous rotation of the rotating side plate 41, the guide arc rod 47 is inserted into the inside of the empty slot 42 to assist the bending spring 46 in compression and positioning.

[0021] When the connecting platform 10 is inserted into the drain pipe, the crawling wheels 44 on both sides of the connecting platform 10 first contact the inner wall of the drain pipe. The elastic force generated by the bending spring 46 drives the rotating side plate 41 and makes the crawling wheels 44 press tightly against the inner wall of the drain pipe. When the connecting platform 10 moves inside the drain pipe, it drives the crawling wheels 44 on both sides to roll on the inner wall of the drain pipe. The elastic force generated by the crawling wheels 44 on both sides in conjunction with the guide arc rod 47 assists the connecting platform 10 to move stably inside the drain pipe.

[0022] After the tunnel drainage pipes are treated, a flushing and recovery unit can be added. By adding a flushing water interface, recovery hose and waste liquid collection container, its function is to flush away any remaining reactants inside the drainage pipes after the descaling work is completed, and remove the remaining dissolved products and reaction liquid, so as to prevent secondary crystallization or long-term retention of descaling residue.

[0023] Working principle: In use: First, after connecting the tooling connection plate 12 with the external robotic arm, the tooling connection plate 12 and the connection platform 10 are inserted into the drain pipe. The external water pipe, together with the booster water pump 17, delivers water flow and pressurizes the inside of the rotating spray head 16. The high-pressure water flow impacts the impeller drive seat 163 and causes it to drive the double spray bar 162 to rotate inside the drain pipe. The rotation of the double spray bar 162 pre-sprays and cleans the inner wall of the drain pipe.

[0024] In the second step, the dual spray bar 162 drives the transmission gear plate 20 and makes the slot opening 26 and the positioning tenon plate 23 rotate synchronously. The rotation of the two positioning tenon plates 23 drives the drive ring 21 and makes the two silt-breaking wing plates 22 rotate synchronously outside the dual spray bar 162. The rotation of the silt-breaking wing plates 22 cleans the silt and crystal inside the drain pipe. After the dual spray bar 162 sprays, the descaling agent storage cylinder 13 set behind the dual spray bar 162, together with the four-way nozzle 19 set outside it, sprays the descaling agent on the inner wall of the drain pipe. The descaling agent reacts chemically with the crystal on the inner wall of the drain pipe to soften the hard crystal.

[0025] The third step involves extending the dual spray bar 162 deep into the drain pipe, then moving the entire device outward from the depth of the drain pipe. The pre-sprayed area is softened by the descaling agent. The output end of the electric telescopic drive rod 32 controls the limiting chuck 33 to move the limiting ring 31 and the two connecting push rods 24 toward the connecting platform 10. The two connecting push rods 24 drive the two positioning tenon plates 23 and separate the two slots 26 from the teeth on the outside of the transmission tooth plate 20. At this point, the power generated by the rotation of the dual spray bar 162 is released, allowing the dual spray bar 162 to rotate at high speed inside the drain pipe and spray and remove the softened crystals.

[0026] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A tunnel drainage crystallization and siltation cleaning device, comprising a connecting platform (10), characterized in that, The connecting platform (10) is externally fixedly connected to an installation beam (11). The end of the installation beam (11) away from the connecting platform (10) is fixedly connected to a tooling connection plate (12) for connecting with an external robotic arm. The connecting platform (10) is internally provided with a descaling agent storage cylinder (13). Both sides of the descaling agent storage cylinder (13) are fixedly connected to a central sleeve plate (14). The ends of the two central sleeve plates (14) that are far apart are fixedly connected to the two sides inside the connecting platform (10). The descaling agent storage cylinder (13) is positioned at the center inside the connecting platform (10) through the two central sleeve plates (14). The descaling agent storage cylinder (13) is externally provided with a four-way nozzle (19) for spraying liquid. Two central sleeve plates (14) are fixedly connected to the outside of transverse connecting beams (18). On the opposite side of the two transverse connecting beams (18), there is a rotating spray head (16) for spraying the inner wall of the drain pipe. The rotating spray head (16) includes a jet pipe (161), a double spray bar (162), and an impeller drive seat (163). The rotating spray head (16) is externally equipped with a spiral sludge removal component for clearing blockages; The spiral dredging assembly includes a transmission toothed plate (20) and a drive ring (21). The transmission toothed plate (20) is fixedly connected to the outside of the double spray bar (162). The inner ring of the drive ring (21) is symmetrically fixedly connected to two positioning tenon plates (23) for inserting into the transmission toothed plate (20). The outer side of the drive ring (21) away from the connecting platform (10) is fixedly connected to two dredging wing plates (22). The drive ring (21) is externally provided with a control auxiliary component for controlling its connection with the transmission gear plate (20).

2. The tunnel drainage crystallization and siltation cleaning device according to claim 1, characterized in that, The outlet of the descaling agent storage cylinder (13) is interconnected with the four-way nozzle (19) by setting a micro water pump.

3. The tunnel drainage crystallization and siltation cleaning device according to claim 1, characterized in that, The jet pipe (161) is fixedly connected to the opposite side of the two transverse connecting beams (18), and the jet pipe (161) is located outside the descaling agent storage cylinder (13) on the side away from the tooling connecting plate (12). The impeller drive seat (163) is fixedly connected to the outside of the jet pipe (161) and communicates with the jet pipe (161). The double spray bar (162) is rotatably connected to the end of the impeller drive seat (163) away from the jet pipe (161). The impeller inside the impeller drive seat (163) is driven by the water pressure of the water flow, and the double spray bar (162) is rotated.

4. The tunnel drainage crystallization and siltation cleaning device according to claim 3, characterized in that, The jet pipe (161) is fixedly connected to a conveying pipe (15), which is fixedly connected to the outside of the descaling agent storage cylinder (13). The conveying pipe (15) is connected to the inside of the jet pipe (161) and conveys water flow inside the jet pipe (161). A booster pump (17) is fixedly connected to the end of the conveying pipe (15) away from the jet pipe (161). The booster pump (17) is fixedly connected to the outside of the mounting beam (11), and the inlet of the booster pump (17) is connected to an external water pipe.

5. The tunnel drainage crystallization and siltation cleaning device according to claim 1, characterized in that, Each of the two positioning tenon plates (23) has a slot (26) at one end facing each other. The positioning tenon plate (23) engages with the teeth on the outside of the transmission gear plate (20) through the slot (26). Each positioning tenon plate (23) is fixedly connected to a connecting push rod (24), and each connecting push rod (24) is movably connected to a square sleeve plate (25).

6. A tunnel drainage crystallization and siltation cleaning device according to claim 5, characterized in that, The control auxiliary component includes a bearing (30), the inner ring of the bearing (30) is fixedly connected to two connecting horizontal plates (34), the two connecting horizontal plates (34) are respectively fixedly connected to the outside of two central sleeve plates (14), and two square sleeve plates (25) are fixedly connected to the outer ring of the bearing (30). The outer ring of the bearing (30) rotates with the two square sleeve plates (25) and assists the drive ring (21) to rotate.

7. A tunnel drainage crystallization and siltation cleaning device according to claim 6, characterized in that, The control auxiliary component also includes a limiting ring disk (31), an electric telescopic drive rod (32) and an arc-shaped stop plate (35). The electric telescopic drive rod (32) is fixedly embedded in the outside of the connecting platform (10). The output end of the electric telescopic drive rod (32) is fixedly connected to the limiting chuck (33). The inner edge of the limiting ring disk (31) is movably connected to the inside of the limiting chuck (33). The side of the limiting ring disk (31) away from the connecting platform (10) is fixedly connected to two connecting push rods (24). The number of arc-shaped abutments (35) is set to two. The two arc-shaped abutments (35) are fixedly connected to the two sides of the outside of the connecting platform (10). The arc-shaped abutments (35) are set on the side of the limiting ring disk (31) close to the connecting platform (10). The arc-shaped abutments (35) are used to limit the lateral movement distance of the limiting ring disk (31) to avoid the limiting ring disk (31) from moving too much.

8. The tunnel drainage crystallization and siltation cleaning device according to claim 1, characterized in that, Both sides of the mounting beam (11) are provided with cleaning propulsion components to assist the connection platform (10) in moving inside the drain pipe; Each cleaning propulsion assembly includes a rotating base (40) and a rotating side plate (41). The rotating base (40) is fixedly connected to the outside of the connecting platform (10). The rotating side plate (41) is rotatably connected to the inside of the rotating base (40) by a rotating shaft. A side slot (45) is opened at the end of the rotating side plate (41) away from the rotating base (40). A crawler wheel (44) is rotatably connected inside the side slot (45). An outer slot (43) is provided on the side of the rotating side plate (41) near the mounting beam (11). An empty slot (42) is provided inside the outer slot (43). A bending spring (46) is movably connected inside the outer slot (43). The corner of the end of the bending spring (46) extends to both sides inside the outer slot (43). The end of the bending spring (46) away from the inside of the outer slot (43) is fixedly connected to the side outside the mounting beam (11). A guide arc rod (47) is movably connected inside the bending spring (46). The guide arc rod (47) is fixedly connected to the side outside the mounting beam (11).

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