A high pressure water jetting pipeline dredging apparatus
By designing a rotating nozzle and a backflush head, combined with adjustable support components and a roller structure, the problem of stubborn scale on the inner wall of pipes being difficult to remove by high-pressure water jet dredging equipment has been solved, achieving efficient and stable pipe dredging results.
Patent Information
- Application Number
- CN202522178693.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-15
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-15
AI Technical Summary
The existing high-pressure water jet cleaning equipment has a fixed water flow direction at the nozzle front end, which makes it difficult to effectively flush away stubborn scale adhering to the circumferential surface of the pipe, causing the equipment to jam and affecting the cleaning efficiency and continuity of operation.
A high-pressure water jet pipeline dredging device was designed, which adopts a rotating nozzle and a backflush head structure. The water jet from the backflush head generates a reaction force to drive the rotating nozzle to rotate. Combined with adjustable support components and roller structure, it can achieve comprehensive flushing and stable propulsion of the pipeline inner wall.
It effectively removes stubborn scale from the inner wall of pipes, prevents equipment from jamming, improves dredging efficiency, reduces equipment wear, and ensures the continuity and stability of operations.
Smart Images
Figure CN224678849U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pipeline cleaning equipment, specifically a high-pressure water jet pipeline dredging equipment. Background Technology
[0002] Over long periods of use, municipal drainage pipes accumulate large amounts of silt, grease, and household waste, and may even experience complex blockages such as tree root intrusion. Currently, the main methods of dredging include high-pressure water jet cleaning and mechanical winch dredging. High-pressure water jet cleaning relies on a high-pressure pump to generate high-pressure water, which is then ejected at high speed through nozzles. The impact force of the water flow cuts and washes away the scale buildup on the pipe walls, dispersing the blockages and flushing them away with the water flow.
[0003] However, existing high-pressure water jet dredging equipment has certain limitations: the water flow direction sprayed from the nozzle tip is fixed and always consistent with the nozzle's direction of travel. It can only impact blockages directly in front of the pipe. For stubborn scale adhering to the circumference of the pipe's inner wall, the water flow in this direction is difficult to effectively flush it and cannot peel it off the pipe wall. These unremoved scales will continue to adhere to the pipe wall. As the dredging equipment advances, it is very easy for it to get stuck with the nozzle frame. This not only increases the equipment's travel resistance but may also cause the nozzle frame to jam, preventing the entire dredging equipment from moving forward. This seriously affects dredging efficiency and work continuity, and may even cause additional damage to the nozzle or the inner wall of the pipe due to forced advancement. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a high-pressure water jet pipeline dredging device to solve the technical problems mentioned above in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure water jet pipeline dredging device, comprising a high-pressure delivery pipe and a support assembly. One end of the high-pressure delivery pipe is connected to a nozzle frame. A sealing box is connected to the outer surface of the nozzle frame via a fixing frame. An electric cylinder is installed inside the sealing box. The output end of the electric cylinder is connected to a mounting frame. A roller is connected inside the mounting frame. One end of the nozzle frame is connected to a rotating nozzle. A second slip ring is connected to the outer surface of the rotating nozzle. A guide rail and a pull rod are respectively connected to the outside of the second slip ring. One end of the rotating nozzle is connected to a spray pipe via a connecting frame, and the outside of the spray pipe is rotatably connected to one end of the pull rod. A connecting pipe is connected between the spray pipe and the nozzle at the front end of the rotating nozzle.
[0006] Furthermore, the support assembly includes a fixed ring and a first slip ring, and the fixed ring and the first slip ring are externally connected to a support frame via cross links, with travel wheels installed at both ends of the support frame.
[0007] By adopting the above technical solution, the fixed ring serves as the fixed fulcrum of the support component, ensuring the stability of the cross linkage when it is deployed; the traveling wheel rolls against the inner wall of the pipe, which can convert the sliding friction between the equipment and the pipe wall into rolling friction, significantly reducing the equipment's traveling resistance, ensuring that the equipment moves smoothly along the pipe axis, and avoiding the equipment from stopping or deviating due to excessive resistance.
[0008] Furthermore, the rotating nozzle is externally connected to three sets of back jets, and the three sets of back jets are distributed in a ring array.
[0009] By adopting the above technical solution, the three sets of annular arrays of back jets generate a uniform reaction force when spraying water, driving the rotating nozzle to rotate at a constant speed around its own axis, so that the nozzle and back jet rotate synchronously, achieving a comprehensive circumferential flushing of the inner wall of the pipe, effectively removing stubborn scale adhering to the pipe wall, avoiding scale accumulation that could cause equipment jamming, and at the same time accelerating the rapid discharge of sludge, preventing sludge from obstructing the forward movement of the travel wheel.
[0010] Furthermore, both the fixing ring and the first slip ring are fixed to the nozzle frame by fixing bolts, and the fixing bolts on the first slip ring abut against the nozzle frame.
[0011] By adopting the above technical solution, the fixing bolts of the fixing ring achieve "permanent locking" with the nozzle frame, preventing displacement of the support components during operation; the "tightening fixing" design of the first slip ring allows for flexible loosening or locking when adjusting the support radius: after the operator loosens the fixing bolts, the first slip ring can be pushed to move axially along the nozzle frame, adjusted to the support position that matches the pipe diameter, and then the fixing bolts can be tightened so that the end is tightly abutted against the outer wall of the nozzle frame, thereby locking the position of the first slip ring.
[0012] Furthermore, the cross links are provided in three sets, and the three sets of cross links are distributed in a circular array.
[0013] By adopting the above technical solution, the cross-links of the three sets of ring arrays can evenly transmit the supporting force to the three support frames, so that the nozzle frame always remains in a centered position in the pipe, avoiding the nozzle frame tilting due to insufficient support on one side, and thus preventing damage caused by the rotating nozzle colliding with the pipe wall; at the same time, the evenly distributed support frames can ensure that the contact pressure between the traveling wheel and the pipe wall is consistent, reducing local wear of the traveling wheel and extending its service life, and the stable support structure can counteract the shaking caused by the backflow of high-pressure water flow, ensuring the stability of the water flow impact force during dredging and improving the dredging effect.
[0014] Furthermore, the connecting pipe is a flexible hose, and the material of the connecting pipe is the same as that of the high-pressure transmission pipe, both being high-pressure resistant steel wire braided rubber hoses.
[0015] By adopting the above technical solutions, the hose material has good flexibility and can be flexibly deformed according to the angle of the nozzle, avoiding the breakage or leakage of the connecting pipe due to the rotation of the nozzle, and ensuring the stable delivery of high-pressure water flow; the high-pressure resistant steel wire braided rubber hose can withstand the pressure of 10-30MPa high-pressure water flow, which fully meets the pressure requirements of high-pressure water jet dredging. At the same time, the wear resistance of the rubber material can reduce the long-term wear of the connecting pipe caused by water flow impact, extend its service life, and ensure the long-term stable operation of the equipment in high-intensity dredging operations.
[0016] Furthermore, the longitudinal section of the roller is inverted "I" shape, and the roller engages with the guide rail.
[0017] By adopting the above technical solution, the interlocking design of the inverted "I"-shaped roller structure and the guide rail can prevent the roller from dislodging from the guide rail during movement, ensuring stable cooperation between the roller and the guide rail when driven by the electric cylinder. This drives the second slip ring to move along the axis of the rotating nozzle and pulls the lever, thereby adjusting the nozzle angle and causing the water flow to be redirected to flush out blockages or scale on the inner wall of the pipe, improving the sludge removal effect.
[0018] Furthermore, the rotating nozzle has a groove on its exterior, and the second slip ring is slidably connected to the rotating nozzle through the groove.
[0019] By adopting the above technical solution, the groove provides a stable sliding track for the second slip ring, ensuring that the second slip ring moves smoothly along the axis of the rotating nozzle, avoiding deflection or jamming of the second slip ring during movement, ensuring the accuracy of the tie rod in adjusting the nozzle angle, and at the same time, the groove structure can limit the radial displacement of the second slip ring and prevent it from detaching from the rotating nozzle.
[0020] Furthermore, the first slip ring is slidably connected to the nozzle holder, and the inner wall of the first slip ring is provided with a wear-resistant bushing, which is made of polytetrafluoroethylene.
[0021] By adopting the above technical solution, the sliding design of the first slip ring, combined with the wear-resistant bushing, not only achieves flexible adjustment of the support radius, but also reduces frictional resistance and component wear during sliding, allowing workers to easily adjust the support position according to the pipe diameter.
[0022] Furthermore, a support ring is connected to one side of the outer surface of the nozzle frame, and the mounting bracket is slidably connected to the support ring.
[0023] By adopting the above technical solution, the support ring provides auxiliary support and guidance for the mounting frame, ensuring that the mounting frame moves smoothly along the nozzle frame axis under the drive of the electric cylinder, avoiding deflection or shaking of the mounting frame during movement, and improving the stability and accuracy of nozzle angle adjustment.
[0024] In summary, the present invention has the following main advantages: 1. This utility model achieves flexible adjustment of the nozzle angle by setting up an electric cylinder, rollers, guide rails and pull rods. When encountering stubborn blockages, the nozzle spray direction can be adjusted to focus on flushing specific areas and improve sludge removal efficiency. 2. This utility model sets up a rotating nozzle and a backflush head. The reaction force generated by the water flow from the backflush head drives the rotating nozzle to rotate, so that the nozzle and the backflush head rotate simultaneously, achieving a comprehensive circumferential flushing of the inner wall of the pipe, effectively removing stubborn scale adhering to the pipe wall and preventing equipment jamming. 3. By setting an adjustable support component, utilizing cross linkages and travel wheels, this utility model enables the equipment to adapt to pipes of different diameters and ensures that the equipment travels in the center of the pipe, reducing travel resistance and avoiding tilting and collisions. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the sealing box of this utility model; Figure 3 This is a schematic diagram of the rotating nozzle structure of this utility model; Figure 4 This is a schematic diagram of the support ring structure of this utility model.
[0026] In the diagram: 1. High-pressure delivery pipe; 2. Nozzle holder; 3. Support assembly; 301. Fixing ring; 302. First slip ring; 303. Cross link; 304. Support frame; 305. Traveling wheel; 4. Fixing bolt; 5. Sealing box; 6. Electric cylinder; 7. Mounting bracket; 8. Roller; 9. Rotating nozzle; 10. Backflush head; 11. Second slip ring; 12. Guide rail; 13. Tie rod; 14. Connecting pipe; 15. Nozzle; 16. Groove; 17. Wear-resistant bushing; 18. Support ring. Detailed Implementation
[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0028] The embodiments of this utility model will be described below based on its overall structure.
[0029] Example 1: A high-pressure water jet pipeline dredging device, such as... Figures 1-4As shown, the assembly includes a high-pressure delivery pipe 1 and a support assembly 3. One end of the high-pressure delivery pipe 1 is connected to a nozzle holder 2. A sealing box 5 is connected to the outer surface of the nozzle holder 2 via a fixing frame. An electric cylinder 6 is installed inside the sealing box 5. The output end of the electric cylinder 6 is connected to a mounting frame 7. A roller 8 is connected inside the mounting frame 7. One end of the nozzle holder 2 is connected to a rotating nozzle 9. A second slip ring 11 is connected to the outer surface of the rotating nozzle 9. A guide rail 12 and a pull rod 13 are respectively connected to the outside of the second slip ring 11. One end of the rotating nozzle 9 is connected to a spray pipe 15 via a connecting frame. The outside of the spray pipe 15 is rotatably connected to one end of the pull rod 13. The spray pipe 15 and the front end of the rotating nozzle 9 are connected to each other. A connecting pipe 14 connects the nozzles. The support assembly 3 includes a fixed ring 301 and a first slip ring 302. The fixed ring 301 and the first slip ring 302 are connected to a support frame 304 by a cross link 303. The support frame 304 is equipped with travel wheels 305 at both ends. The fixed ring 301 serves as a fixed fulcrum for the support assembly 3, ensuring the stability of the cross link 303 when it is deployed. The travel wheels 305 roll against the inner wall of the pipe, which can convert the sliding friction between the equipment and the pipe wall into rolling friction, significantly reducing the travel resistance of the equipment and ensuring that the equipment moves smoothly along the pipe axis, avoiding the equipment from stopping or deviating due to excessive resistance.
[0030] See Figure 1 , Figure 3 and Figure 4 In the above embodiment, the rotating nozzle 9 is externally connected to three sets of backflush heads 10, and the three sets of backflush heads 10 are arranged in a ring array. When the backflush heads 10 of the three ring array spray water, they generate a uniform reaction force, which drives the rotating nozzle 9 to rotate at a constant speed around its own axis, so that the nozzle 15 and the backflush heads 10 rotate synchronously, thereby achieving a comprehensive circumferential flushing of the inner wall of the pipe, effectively removing stubborn scale adhering to the pipe wall, avoiding scale accumulation that could cause equipment jamming, and accelerating the rapid discharge of sludge to prevent sludge from obstructing the forward movement of the travel wheel 305.
[0031] See Figure 1 and Figure 2 In the above embodiment, both the fixing ring 301 and the first slip ring 302 are fixed to the nozzle frame 2 by fixing bolts 4, and the fixing bolts 4 on the first slip ring 302 abut against the nozzle frame 2. The fixing bolts 4 of the fixing ring 301 achieve "permanent locking" with the nozzle frame 2, preventing displacement of the support component 3 during operation. The "tightening fixing" design of the first slip ring 302 can be flexibly loosened or locked when adjusting the support radius: after the operator loosens the fixing bolts 4, the first slip ring 302 can be pushed to move axially along the nozzle frame 2. After adjusting to the support position that matches the pipe diameter, the fixing bolts 4 are tightened so that the end abuts tightly against the outer wall of the nozzle frame 2, thereby locking the position of the first slip ring 302.
[0032] See Figure 1 and Figure 2In the above embodiment, there are three sets of cross links 303, and the three sets of cross links 303 are distributed in a ring array. The three sets of ring array cross links 303 can evenly transmit the supporting force to the three support frames 304, so that the nozzle frame 2 always remains in a centered state in the pipe, avoiding the nozzle frame 2 from tilting due to insufficient support on one side, and thus preventing the rotating nozzle 9 from colliding with the pipe wall and causing damage. At the same time, the evenly distributed support frames 304 can ensure that the contact pressure between the traveling wheel 305 and the pipe wall is consistent, reducing the local wear of the traveling wheel 305, extending its service life, and the stable support structure can counteract the shaking caused by the backflow of high-pressure water flow, ensuring the stability of the water flow impact force during dredging and improving the dredging effect.
[0033] See Figure 1 , Figure 3 and Figure 4 In the above embodiment, the connecting pipe 14 is a flexible hose, and the material of the connecting pipe 14 is the same as that of the high-pressure conveying pipe 1, which is a high-pressure resistant steel wire braided rubber hose. The hose material has good flexibility and can be flexibly deformed according to the angle of the nozzle 15, avoiding the connection pipe 14 from breaking or leaking due to the rotation of the nozzle 15, thus ensuring the stable delivery of high-pressure water flow. The high-pressure resistant steel wire braided rubber hose can withstand the pressure of 10-30MPa high-pressure water flow, which fully meets the pressure requirements of high-pressure water jet dredging. At the same time, the wear resistance of the rubber material can reduce the long-term wear of the connecting pipe 14 caused by water flow impact, extend its service life, and ensure the long-term stable operation of the equipment in high-intensity dredging operations.
[0034] See Figure 1 , Figure 3 and Figure 4 In the above embodiment, the longitudinal section of the roller 8 is in the shape of an inverted "I" and the roller 8 is engaged with the guide rail 12. The inverted "I" shaped roller 8 structure and the engagement design with the guide rail 12 can prevent the roller 8 from dislodging from the guide rail 12 during movement, ensuring stable cooperation between the roller 8 and the guide rail 12 when the electric cylinder 6 is driven. This drives the second slip ring 11 to move axially along the rotating nozzle 9 and pulls the pull rod 13, thereby realizing the adjustment of the angle of the nozzle 15, so that the water flow is redirected to flush the blockage or scale on the inner wall of the pipe, improving the sludge removal effect.
[0035] See Figure 1 , Figure 3 and Figure 4 In the above embodiment, the rotating nozzle 9 is provided with a groove 16 on the outside, and the second slip ring 11 is slidably connected to the rotating nozzle 9 through the groove 16. The groove 16 provides a stable sliding track for the second slip ring 11, ensuring that the second slip ring 11 moves smoothly along the axial direction of the rotating nozzle 9, avoiding the second slip ring 11 from deflecting or getting stuck during the movement, ensuring the accuracy of the adjustment of the nozzle 15 angle by the pull rod 13. At the same time, the groove 16 structure can limit the radial displacement of the second slip ring 11 and prevent it from disengaging from the rotating nozzle 9.
[0036] See Figure 1 and Figure 2 In the above embodiment, the first slip ring 302 is slidably connected to the nozzle frame 2. The inner wall of the first slip ring 302 is provided with a wear-resistant bushing 17, and the wear-resistant bushing 17 is made of polytetrafluoroethylene. The sliding design of the first slip ring 302, together with the wear-resistant bushing 17, not only realizes the flexible adjustment of the support radius, but also reduces the frictional resistance and component wear during sliding, so that the staff can easily adjust the support position according to the pipe diameter.
[0037] Example 2: To further improve the stability of the mounting bracket 7, Example 2 is an improvement on Example 1. (See attached document for details.) Figure 4 A support ring 18 is connected to one side of the outer surface of the nozzle frame 2, and the mounting frame 7 is slidably connected to the support ring 18. The support ring 18 provides auxiliary support and guidance for the mounting frame 7, ensuring that the mounting frame 7 moves smoothly along the axis of the nozzle frame 2 under the drive of the electric cylinder 6, avoiding the mounting frame 7 from deflecting or shaking during the movement, and improving the stability and accuracy of the nozzle 15 angle adjustment.
[0038] The implementation principle of this utility model is as follows: First, the worker measures the inner diameter of the pipe to be dredged, loosens the fixing bolt 4 on the first slip ring 302, and pushes the first slip ring 302 to move axially along the nozzle frame 2. The first slip ring 302 drives the cross linkage 303 to unfold, thereby causing the support frame 304 to open synchronously until the travel wheels 305 at both ends of the support frame 304 simulate contact with the inner wall of the pipe (or preset positions according to the pipe diameter). After confirming that the support radius is suitable, the fixing bolt 4 on the first slip ring 302 is tightened, so that the bolt ends are tightly abutted against the outer wall of the nozzle frame 2, locking the first slip ring 302. At position 302, adjust the support component 3; place the adjusted dredging equipment into the pipe to be dredged from the pipe well opening, and connect the other end of the high-pressure delivery pipe 1 to the external high-pressure pump; start the high-pressure pump, and high-pressure water flows through the high-pressure delivery pipe 1 into the nozzle frame 2: part of the water flows through the nozzle at the front end of the rotating nozzle 9 into the connecting pipe 14, and is sprayed out from the nozzle 15, using the impact force of the high-speed water flow to cut and disperse the silt, domestic waste and other blockages in front of the pipe; another part of the water flows out from the three sets of back jets 10 on the outer wall of the rotating nozzle 9, and the reaction force of the water flow drives the rotation. The nozzle 9 rotates at a constant speed around its own axis, while the water jet from the backflush head 10 simultaneously flushes away stubborn grease and scale from the inner wall of the pipe, peeling them off. With the continuous impact of the water flow and the reaction force of the backflush head 10, the equipment, assisted by the travel wheel 305, slowly advances along the pipe axis. The dislodged blockages and scale are discharged from the pipe along with the water flow, completing the pipe cleaning. When encountering stubborn scale buildup on the inner wall of the pipe that prevents the equipment from moving forward: the operator first reverses the equipment a short distance, then starts the electric cylinder 6 (electric cylinder power supply) via an external remote control. The line is fixed on the delivery pipe and moves synchronously with the delivery pipe. The output end of the electric cylinder 6 retracts and pulls the mounting bracket 7 towards the sealing box 5. As the roller 8 engages with the guide rail 12, the roller 8 drives the second slip ring 11 to move smoothly along the axis of the rotating nozzle 9. During the movement of the second slip ring 11, the pull rod 13 pulls the nozzle 15 to rotate around the hinge point of the connecting frame, changing the spray direction of the nozzle 15. After the nozzle 15 is adjusted to a suitable position, the electric cylinder 6 is turned off, so that the nozzle 15 maintains the current angle. Under the impact of the water flow, the blockage or scale on the inner wall of the pipe in this area is removed.
[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A high-pressure water jet pipeline dredging device, comprising a high-pressure delivery pipe (1) and a support assembly (3), characterized in that: One end of the high-pressure delivery pipe (1) is connected to a nozzle frame (2). The outer surface of the nozzle frame (2) is connected to a sealing box (5) via a fixing frame. An electric cylinder (6) is installed inside the sealing box (5). The output end of the electric cylinder (6) is connected to a mounting frame (7). A roller (8) is connected inside the mounting frame (7). One end of the nozzle frame (2) is connected to a rotating nozzle (9). The outer surface of the rotating nozzle (9) is connected to a second slip ring (11). The second slip ring (11) is connected to a guide rail (12) and a pull rod (13) on the outside. One end of the rotating nozzle (9) is connected to a nozzle pipe (15) via a connecting frame. The nozzle pipe (15) is rotatably connected to one end of the pull rod (13). A connecting pipe (14) is connected between the nozzle pipe (15) and the nozzle at the front end of the rotating nozzle (9).
2. The high-pressure water jet pipeline dredging equipment according to claim 1, characterized in that: The support assembly (3) includes a fixed ring (301) and a first slip ring (302). The fixed ring (301) and the first slip ring (302) are connected to a support frame (304) via a cross link (303). The support frame (304) has travel wheels (305) installed at both ends.
3. The high-pressure water jet pipeline dredging equipment according to claim 1, characterized in that: The rotating nozzle (9) is externally connected to three sets of back jets (10), and the three sets of back jets (10) are distributed in a ring array.
4. The high-pressure water jet pipeline dredging equipment according to claim 2, characterized in that: The fixed ring (301) and the first slip ring (302) are both fixed to the nozzle frame (2) by fixing bolts (4), and the fixing bolts (4) on the first slip ring (302) abut against the nozzle frame (2).
5. The high-pressure water jet pipeline dredging equipment according to claim 2, characterized in that: The cross link (303) is provided in three sets, and the three sets of cross links (303) are distributed in a ring array.
6. The high-pressure water jet pipeline dredging equipment according to claim 1, characterized in that: The connecting pipe (14) is a flexible hose, and the material of the connecting pipe (14) is the same as that of the high-pressure conveying pipe (1), which is a high-pressure resistant steel wire braided rubber hose.
7. The high-pressure water jet pipeline dredging equipment according to claim 1, characterized in that: The longitudinal section of the roller (8) is in the shape of an inverted "I", and the roller (8) meshes with the guide rail (12).
8. The high-pressure water jet pipeline dredging equipment according to claim 1, characterized in that: The rotating nozzle (9) has a groove (16) on its outside, and the second slip ring (11) is slidably connected to the rotating nozzle (9) through the groove (16).
9. A high-pressure water jet pipeline dredging device according to claim 2, characterized in that: The first slip ring (302) is slidably connected to the nozzle holder (2), and the inner wall of the first slip ring (302) is provided with a wear-resistant bushing (17), which is made of polytetrafluoroethylene.
10. A high-pressure water jet pipeline dredging device according to claim 1, characterized in that: The nozzle holder (2) has a support ring (18) connected to one side of its outer surface, and the mounting bracket (7) is slidably connected to the support ring (18).