Underground pipeline dredging spiral blade adjusting mechanism

The design of adjustable dredging and support components solves the problem that fixed-length spiral blades cannot cover the inner wall of the pipe, achieving flexible adjustment and stable support, and improving the comprehensiveness and efficiency of dredging.

CN224213502UActive Publication Date: 2026-05-08SICHUAN FENGZHAO CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN FENGZHAO CONSTR ENG CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing dredging equipment with fixed spiral blade lengths cannot completely cover the inner wall of underground pipes of different lengths and diameters, resulting in incomplete dredging and blind spots.

Method used

An adjustable dredging component was designed. The main body of the spiral blade moves axially through the extension and retraction of the cylinder, and the position of the blade relative to the inner wall of the pipe is adjusted by the electric push rod and support wheel of the support component to ensure stable contact. Combined with the lifting and rotation power of the servo motor, flexible adjustment and stable support are achieved.

Benefits of technology

It enables flexible adjustment of the spiral blade body inside the pipeline, covering a larger dredging area, improving the comprehensiveness and targeting of dredging, and ensuring the stability and efficiency of the dredging process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an underground pipeline dredging spiral blade adjusting mechanism, which belongs to the technical field of pipeline dredging and is characterized by comprising a base and a pipeline body, the top of the base is fixedly connected with a mounting plate, and a U-shaped frame is arranged on one side, close to the pipeline body, of the mounting plate. An adjustable desilting assembly is arranged in the U-shaped frame, a supporting assembly is arranged on the surface of the adjustable desilting assembly, and the adjustable desilting assembly is arranged, so that a spiral blade body can be precisely pushed to move in the pipeline body in the axial direction through telescopic movement of an air cylinder; the spiral blade body can be flexibly adjusted and move in the axial direction of the inner edge, the relative position of the spiral blade body and the inner wall of the pipeline can be flexibly adjusted, therefore, pipeline bodies of different lengths can be used, dredging blind areas caused by fixed positions are effectively avoided, and the comprehensiveness and pertinence of dredging work are greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline dredging technology, and in particular to an adjustment mechanism for a spiral blade for underground pipeline dredging. Background Technology

[0002] With the acceleration of urbanization, underground pipelines, as an important part of urban infrastructure, undertake key tasks such as sewage discharge and rainwater drainage. During long-term use, silt and debris inevitably accumulate on the inner wall of the pipeline, which seriously affects the pipeline's transport capacity and service life. Therefore, regular dredging and maintenance are essential.

[0003] Currently, the spiral blade dredging equipment widely used in the market often has a fixed spiral blade length. However, due to the large differences in the length of underground pipelines and the different siltation conditions in different areas, the fixed-length spiral blades cannot completely cover the inner wall of underground pipelines with long distances or large diameters, resulting in a large number of dredging blind spots. This makes it difficult to remove silt from the uncovered areas, resulting in incomplete dredging.

[0004] To address this, a spiral blade adjustment mechanism for dredging underground pipelines is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an adjustment mechanism for the spiral blades of underground pipeline dredging, which can solve the problem that the length of existing spiral blades is often fixed. However, due to the large differences in the length of underground pipelines and the different siltation conditions in different areas, the fixed-length spiral blades cannot completely cover the inner wall of underground pipelines with long distances or large diameters, resulting in a large number of dredging blind spots. This makes it difficult to remove silt from the uncovered areas, resulting in incomplete dredging.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an underground pipeline dredging spiral blade adjustment mechanism, comprising a base and a pipeline body, wherein an installation plate is fixedly connected to the top of the base, a U-shaped frame is provided on the side of the installation plate near the pipeline body, an adjustable dredging component is provided inside the U-shaped frame, and a support component is provided on the surface of the adjustable dredging component, the support component including an electric push rod;

[0007] The adjustable dredging assembly includes a movable plate. A fixed ring is fixedly connected to the left side of the movable plate. A rotating shaft is rotatably connected through the inside of the fixed ring. A drive motor is fixedly connected to the right side of the movable plate, and the output end of the drive motor is fixedly connected to the rotating shaft. A spiral blade body is fixedly connected to the surface of the rotating shaft. A connecting frame is fixedly connected to the right side of the movable plate, and the drive motor is located inside the connecting frame. A cylinder is fixedly connected to the right side of the inner wall of the U-shaped frame, and the telescopic end of the cylinder is fixedly connected to the connecting frame.

[0008] Preferably, the electric push rod is fixedly connected to the surface of the fixed ring, and the number of electric push rods is set to two and they are symmetrically distributed.

[0009] Preferably, the telescopic end of the electric push rod is fixedly connected to a mounting cylinder, and a movable rod is movably connected through the interior of the mounting cylinder. A circular plate is fixedly connected to one end of the movable rod inside the mounting cylinder, and an elastic element is fixedly connected to the bottom of the circular plate. The other end of the elastic element is fixedly connected to the inner wall of the mounting cylinder.

[0010] Preferably, a support wheel is fixedly connected to the end of the moving rod away from the mounting cylinder, and the support wheel is in rolling connection with the inner wall of the pipe body.

[0011] Preferably, a vertical groove is provided on the left side of the mounting plate, and a screw is rotatably connected to the inside of the vertical groove through a bearing. A servo motor is fixedly connected to the top of the mounting plate, and the output end of the servo motor is fixedly connected to the top end of the screw. A screw block is slidably connected to the surface of the screw, and the screw block is used in conjunction with the vertical groove.

[0012] Preferably, a connecting frame is fixedly connected to the left side of the screw block, and the left side of the connecting frame is fixedly connected to the right side of the U-shaped frame.

[0013] Preferably, the top and bottom of the inner wall of the U-shaped frame are provided with sliding grooves, and a limit rod is fixedly connected inside the sliding groove.

[0014] Preferably, guide blocks are fixedly connected to the top and bottom of the movable plate, and the guide blocks are slidably connected to the surface of the limiting rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This application, by setting an adjustable dredging component, can precisely push the spiral blade body to move axially within the pipe body through the extension and retraction of the cylinder. This allows the spiral blade body to be flexibly adjusted relative to the inner wall of the pipe, thereby enabling the use of pipe bodies of different lengths. This effectively avoids dredging blind spots caused by fixed positions and greatly improves the comprehensiveness and pertinence of dredging work.

[0017] 2. By setting up a support component, the two symmetrically distributed electric push rods can adjust the position of the support wheels according to the actual situation of the pipeline body, so that the support wheels are in close contact with the inner wall of the pipeline body, thereby providing stable support force for the adjustable dredging component, ensuring that the spiral blade body maintains a stable position and posture during the dredging process, avoiding shaking or displacement due to the dredging force, and ensuring the smooth progress of the dredging work. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the underground pipeline dredging spiral blade adjustment mechanism of this utility model;

[0019] Figure 2 This utility model Figure 1 Side view;

[0020] Figure 3 This is a schematic diagram of the adjustable dredging component of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the support component of this utility model;

[0022] Figure 5 This utility model Figure 2 Enlarged diagram of point A in the middle.

[0023] In the diagram, 1. Base; 2. Pipe body; 3. Mounting plate; 4. U-shaped frame; 5. Adjustable sludge removal component; 501. Moving plate; 502. Fixing ring; 503. Rotating shaft; 504. Drive motor; 505. Spiral blade body; 506. Connecting frame; 507. Cylinder; 6. Support component; 601. Electric push rod; 602. Mounting cylinder; 603. Moving rod; 604. Circular plate; 605. Elastic element; 606. Support wheel; 7. Vertical groove; 8. Screw; 9. Servo motor; 10. Screw block; 11. Connecting frame; 12. Slide groove; 13. Limiting rod; 14. Guide block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 The present invention provides the following technical solution:

[0026] An underground pipeline dredging spiral blade adjustment mechanism includes a base 1 and a pipeline body 2. An installation plate 3 is fixedly connected to the top of the base 1. A U-shaped frame 4 is provided on the side of the installation plate 3 near the pipeline body 2. An adjustable dredging component 5 is provided inside the U-shaped frame 4. A support component 6 is provided on the surface of the adjustable dredging component 5. The support component 6 includes an electric push rod 601.

[0027] The adjustable dredging component 5 includes a movable plate 501. A fixed ring 502 is fixedly connected to the left side of the movable plate 501. A rotating shaft 503 is rotatably connected through the inside of the fixed ring 502. A drive motor 504 is fixedly connected to the right side of the movable plate 501, and the output end of the drive motor 504 is fixedly connected to the rotating shaft 503. A spiral blade body 505 is fixedly connected to the surface of the rotating shaft 503. A connecting frame 506 is fixedly connected to the right side of the movable plate 501, and the drive motor 504 is located inside the connecting frame 506. A cylinder 507 is fixedly connected to the right side of the inner wall of the U-shaped frame 4. The telescopic end of the cylinder 507 is fixedly connected to the connecting frame 506.

[0028] In this embodiment: by setting an adjustable dredging component 5, the movable plate 501 serves as the basic carrier of the entire adjustable dredging component 5, ensuring the relative position stability of each component. The fixed ring 502 is the mounting base for the support component 6, allowing the support component 6 and the adjustable dredging component 5 to form an integral whole and work together. The drive motor 504 provides the rotational power required for dredging. By controlling the motor speed, the dredging force and efficiency of the spiral blades can be adjusted to adapt to pipes with different degrees of siltation. The rotating shaft 503 can transmit the torque of the drive motor 504 to the spiral blade body 505, driving it to rotate at high speed. The sludge is stirred and transported by the spiral blade body 505. The spiral thrust generated by the rotation can break and stir the sludge in the pipe body 2 and transport it to the outlet direction, directly realizing the sludge removal function. The connecting frame 506 can transmit the extension and retraction force of the cylinder 507 to the moving plate 501, so that the entire adjustable sludge removal assembly 5 can move axially in the pipe body 2, thereby facilitating the adjustment of the sludge removal position. The cylinder 507 can push the connecting frame 506 and the moving plate 501 through the extension and retraction movement, so as to realize the axial position adjustment of the spiral blade body 505 in the pipe body 2, thereby covering a larger sludge removal range.

[0029] Specifically, such as Figure 3 , Figure 4 As shown, the electric push rod 601 is fixedly connected to the surface of the fixed ring 502, and the number of electric push rods 601 is set to two and they are symmetrically distributed.

[0030] Specifically, such as Figure 4 As shown, the telescopic end of the electric push rod 601 is fixedly connected to the mounting cylinder 602. The interior of the mounting cylinder 602 is movably connected to a moving rod 603. One end of the moving rod 603 located inside the mounting cylinder 602 is fixedly connected to a circular plate 604. The bottom of the circular plate 604 is fixedly connected to an elastic element 605. The other end of the elastic element 605 is fixedly connected to the inner wall of the mounting cylinder 602.

[0031] Specifically, such as Figure 4As shown, a support wheel 606 is fixedly connected to the end of the moving rod 603 away from the mounting cylinder 602, and the support wheel 606 is in rolling connection with the inner wall of the pipe body 2.

[0032] In this embodiment: Through the above settings, the electric push rod 601 can drive the support wheel 606 to contact the inner wall of the pipe body 2 by extension and retraction, so that the support assembly 6 can be applied to pipe bodies 2 with different diameters. The two symmetrically distributed electric push rods 601 will form a stable triangular support structure to counteract the radial force generated by the rotation of the spiral blade body 505 during the dredging process, and prevent the adjustable dredging assembly 5 from shaking or deviating. When the support wheel 606 encounters a protrusion or depression on the inner wall of the pipe body 2, the moving rod 603 can slide in the mounting cylinder 602 under the action of the elastic element 605 to absorb the impact energy and reduce the vibration impact on the adjustable dredging assembly 5. The elastic force provided by the elastic element 605 can keep the support wheel 606 in contact with the inner wall of the pipe body 2 at all times. Even if the pipe body 2 is deformed or uneven, it can still maintain stable support. By rolling contact with the inner wall of the pipe body 2, the support wheel 606 can convert sliding friction into rolling friction, reduce the forward resistance of the adjustable dredging assembly 5, reduce energy consumption and improve work efficiency.

[0033] Specifically, such as Figure 2 As shown, a vertical groove 7 is provided on the left side of the mounting plate 3. A screw 8 is rotatably connected inside the vertical groove 7 via a bearing. A servo motor 9 is fixedly connected to the top of the mounting plate 3, and the output end of the servo motor 9 is fixedly connected to the top end of the screw 8. A screw block 10 is slidably connected to the surface of the screw 8, and the screw block 10 is used in conjunction with the vertical groove 7.

[0034] Specifically, such as Figure 2 As shown, a connecting bracket 11 is fixedly connected to the left side of the screw block 10, and the left side of the connecting bracket 11 is fixedly connected to the right side of the U-shaped bracket 4.

[0035] In this embodiment: Through the above settings, the vertical slot 7 can restrict the screw block 10 to move only in the vertical direction, ensuring that the lifting path of the adjustable dredging component 5 is precise and controllable. The screw 8 can convert the rotational motion of the servo motor 9 into the linear motion of the screw block 10, realizing the vertical lifting of the adjustable dredging component 5. The servo motor 9 can provide controllable rotational power, and the screw block 10 can be raised and lowered by forward and reverse rotation, ensuring that the adjustable dredging component 5 can stop at a specified height position. The connecting frame 11 can connect the screw block 10 to the U-shaped frame 4, ensuring that the driving force of the screw 8 can be effectively transmitted to the adjustable dredging component 5, so that the height of the adjustable dredging component 5 can be flexibly adjusted according to the dredging requirements, further improving the flexibility of use.

[0036] Specifically, such as Figure 5As shown, the top and bottom of the inner wall of the U-shaped frame 4 are provided with sliding grooves 12, and the sliding grooves 12 are fixedly connected with limit rods 13.

[0037] Specifically, such as Figure 5 As shown, guide blocks 14 are fixedly connected to the top and bottom of the movable plate 501, and the guide blocks 14 are slidably connected to the surface of the limiting rod 13.

[0038] In this embodiment: Through the above settings, the slide 12 and the limiting rod 13 can provide a sliding path for the guide block 14, ensuring that the moving plate 501 can only move linearly along the axis of the U-shaped frame 4, limiting its lateral or rotational displacement, thereby improving the linear motion accuracy of the adjustable dredging component 5.

[0039] Working principle: First, place the entire device at the inspection wellhead or work area of ​​the pipeline body 2, ensuring stable support for the entire device. Then, start the servo motor 9 to drive the screw 8 to rotate. The rotation of the screw 8 can drive the screw block 10 to move up and down along the vertical groove 7. The screw block 10, through the connecting frame 11, will drive the U-shaped frame 4 and the adjustable sludge removal component 5 to rise and fall together, so that the spiral blade body 505 is aligned with the central axis of the pipeline body 2 to be sludged. Then, control the electric push rod 601 to extend, pushing the installation cylinder 602, the moving rod 603 and the support wheel 606 to move towards the inner wall of the pipeline body 2, straight... The drive motor 504 is started after the support wheel 606 contacts the pipe wall. The drive motor 504 will drive the rotating shaft 503 and the spiral blade body 505 to rotate at high speed. The spiral blade body 505 can break and transport the sludge in the pipe body 2 through the spiral thrust. When it is necessary to adjust the horizontal position of the spiral blade body 505, the extension end of the cylinder 507 pushes the connecting frame 506 and the moving plate 501 to move. The spiral blade body 505 will move forward or backward along the axial direction of the pipe body 2, so that different areas in the pipe body 2 can be cleaned.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spiral blade adjustment mechanism for dredging underground pipelines, comprising a base (1) and a pipeline body (2), characterized in that: The top of the base (1) is fixedly connected to the mounting plate (3), and a U-shaped frame (4) is provided on the side of the mounting plate (3) near the pipe body (2). An adjustable sludge removal component (5) is provided inside the U-shaped frame (4), and a support component (6) is provided on the surface of the adjustable sludge removal component (5). The support component (6) includes an electric push rod (601). The adjustable dredging assembly (5) includes a movable plate (501), a fixed ring (502) is fixedly connected to the left side of the movable plate (501), a rotating shaft (503) is rotatably connected through the inside of the fixed ring (502), a drive motor (504) is fixedly connected to the right side of the movable plate (501), and the output end of the drive motor (504) is fixedly connected to the rotating shaft (503), a spiral blade body (505) is fixedly connected to the surface of the rotating shaft (503), a connecting frame (506) is fixedly connected to the right side of the movable plate (501), and the drive motor (504) is located inside the connecting frame (506). A cylinder (507) is fixedly connected to the right side of the inner wall of the U-shaped frame (4), and the telescopic end of the cylinder (507) is fixedly connected to the connecting frame (506).

2. The underground pipeline dredging spiral blade adjustment mechanism according to claim 1, characterized in that: The electric push rod (601) is fixedly connected to the surface of the fixed ring (502), and the number of electric push rods (601) is set to two and they are symmetrically distributed.

3. The underground pipeline dredging spiral blade adjustment mechanism according to claim 1, characterized in that: The telescopic end of the electric push rod (601) is fixedly connected to the mounting cylinder (602). A movable rod (603) is movably connected through the interior of the mounting cylinder (602). A circular plate (604) is fixedly connected to one end of the movable rod (603) inside the mounting cylinder (602). An elastic element (605) is fixedly connected to the bottom of the circular plate (604). The other end of the elastic element (605) is fixedly connected to the inner wall of the mounting cylinder (602).

4. The underground pipeline dredging spiral blade adjustment mechanism according to claim 3, characterized in that: The end of the moving rod (603) away from the mounting cylinder (602) is fixedly connected to a support wheel (606), and the support wheel (606) is in rolling connection with the inner wall of the pipe body (2).

5. The underground pipeline dredging spiral blade adjustment mechanism according to claim 1, characterized in that: A vertical groove (7) is provided on the left side of the mounting plate (3). A screw (8) is rotatably connected inside the vertical groove (7) through a bearing. A servo motor (9) is fixedly connected to the top of the mounting plate (3), and the output end of the servo motor (9) is fixedly connected to the top end of the screw (8). A screw block (10) is slidably connected to the surface of the screw (8), and the screw block (10) is used in conjunction with the vertical groove (7).

6. The underground pipeline dredging spiral blade adjustment mechanism according to claim 5, characterized in that: A connecting frame (11) is fixedly connected to the left side of the screw block (10), and the left side of the connecting frame (11) is fixedly connected to the right side of the U-shaped frame (4).

7. The underground pipeline dredging spiral blade adjustment mechanism according to claim 1, characterized in that: The top and bottom of the inner wall of the U-shaped frame (4) are provided with sliding grooves (12), and the sliding grooves (12) are fixedly connected with limit rods (13).

8. The underground pipeline dredging spiral blade adjustment mechanism according to claim 7, characterized in that: The top and bottom of the movable plate (501) are fixedly connected to guide blocks (14), and the guide blocks (14) are slidably connected to the surface of the limiting rod (13).