Pipeline dredging device with rotary scraper

Abstract

The utility model relates to the technical field of pipeline desilting, and particularly discloses a pipeline desilting device with a rotary scraper, which is suitable for desilting the inner wall surface of a pipeline, and realizes desilting while walking by arranging a walking mechanism without manual operation. The two crawler wheels are adjustable in angle, and the angle of the crawler wheels can be adjusted according to the inner diameter of the pipeline, so that the dredging device is suitable for dredging work of pipelines with different inner diameters; the device can be used in cooperation with a visual control device and is in communication connection with a pipeline desilting device, the height of the mounting frame is adjusted firstly so that the center of the fixed end of the telescopic piece can be located on the center line of a pipeline, then the telescopic length of the telescopic piece is adjusted so that the scraper can make contact with the position of sludge on the inner wall face of the pipeline, then desilting work is conducted, and the walking mechanism is started; the walking mechanism walks and moves in the pipeline, sludge on the inner wall face of the pipeline is scraped in a rolling mode through the rolling scraper during walking, the rolling scraping resistance is small, the dredging efficiency is high, and the dredging effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline dredging, in particular to a pipeline dredging device with a rotary scraper. Background Art

[0002] Pipeline dredging is to dredge pipelines, clean the silt inside the pipelines, and keep them unblocked for a long time to prevent urban waterlogging. Pipeline dredging work has become an important task that cannot be ignored by the drainage department. When a large amount of sundries are discharged into the drainage pipelines and sediment and silt are deposited at the construction sites of infrastructure projects, the pipelines will be blocked. If the pipelines are not dredged and unblocked, sewage will overflow, polluting the environment and bringing trouble to people's lives.

[0003] Generally, a pipeline dredging device is used to clean pipelines. Such a device can refer to a pipeline dredging robot disclosed in Chinese Patent Application No. 202311649443.9, which includes a walking body and a dredging device arranged at the front end of the walking body. The dredging device includes a connecting shaft and a plurality of dredging plates. The plurality of dredging plates are circumferentially distributed on the connecting shaft with the axis of the connecting shaft as the center to form a dredging disk. The dredging plates can be slidably connected to the connecting shaft. The connecting shaft is installed at the front end of the walking body, and dredging knives are fixedly installed on the surfaces of the plurality of dredging plates facing away from the walking body.

[0004] The existing pipeline dredging robots generally have the following problems: 1. They adopt a single-track walking structure, and the angle of the track cannot be adjusted, making it difficult to adapt to pipeline dredging of different inner diameters; 2. In order to improve the waterproof and anti-corrosion performance of the inner wall of the pipeline, a waterproof and anti-corrosion coating is usually sprayed on the inner wall of the pipeline. However, most of the existing pipeline dredging robots use dredging plates to scrape off silt, and for some positions with relatively hard silt, the scraping resistance is large and the dredging effect is poor.

[0005] Therefore, the existing technology still needs to be improved and developed. Summary of the Utility Model

[0006] In view of the above deficiencies of the existing technology, the purpose of the present utility model is to provide a pipeline dredging device with a rotary scraper to solve the problems that the existing pipeline dredging robots cannot adapt to walking in pipelines of different diameters and the scraping resistance of the dredging plates is large.

[0007] A pipeline dredging device with a rotary scraper includes:

[0008] A walking mechanism, including a base and track wheels arranged on both sides of the base with adjustable angles, and the track wheels walk on the bottom of the inner wall of the pipeline;

[0009] A mounting frame, fixed to the base and with adjustable height;

[0010] The telescopic mechanism includes a plurality of telescopic members that are fan-shaped and spaced on the mounting frame and whose lengths can be adjusted telescopically.

[0011] The scraping blade assembly includes a bracket connected to the telescopic end of the telescopic member and a scraping blade rotatably arranged on the bracket. The scraping blades are circumferentially distributed and are used for dredging the inner wall surface of the pipeline. The axial section of the scraping blade is an elliptical structure.

[0012] Specifically, the pipeline dredging device further includes a rotating mechanism. The rotating mechanism is fixed to the mounting frame, the telescopic member is fixed to the output end of the rotating mechanism, and the rotation center of the rotating mechanism can be adjusted to be consistent with the center of the pipeline.

[0013] Specifically, the scraping blade is provided with n radial clearance grooves, n≥1, and the clearance grooves divide the scraping blade into n + 1 sheet-shaped scraping structures.

[0014] Specifically, the traveling mechanism further includes swing devices arranged on both sides of the base, and the two swing devices respectively drive the two crawler wheels to swing.

[0015] Specifically, the mounting frame is provided with a height adjustment device, and the height adjustment device is a manual lifting device, a pneumatic lifting device, a hydraulic lifting device or an electric lifting device.

[0016] Specifically, the telescopic member is a manual telescopic rod, a pneumatic telescopic rod, a hydraulic telescopic rod or an electric telescopic rod.

[0017] Specifically, the rotating mechanism is a motor.

[0018] Specifically, the pipeline dredging device further includes a planar dredging mechanism. The planar dredging mechanism includes an extension frame fixed to one end of the base in the traveling direction, a plurality of sweeping disks arranged at the bottom of the extension frame, and a driving device for driving the sweeping disks to rotate. The sweeping disks are used for cleaning the bottom plane of the inner wall of the pipeline.

[0019] Specifically, the second sweeping disk includes a disk detachably connected to the output end of the driving device and a cleaning belt arranged annularly on the disk.

[0020] The beneficial effects of the present utility model:

[0021] 1. The pipeline dredging device of the present utility model is suitable for the dredging work of the inner wall surface of the pipeline. By setting the traveling mechanism, it can dredge while walking without manual operation; there are two crawler wheels and the angle can be adjusted, and the angle of the crawler wheels can be adjusted according to the inner diameter of the pipeline, so as to adapt to the dredging work of pipelines with different inner diameters.

[0022] 2. It can adjust the height of the mounting bracket according to the inner diameter of the pipeline, so that the center of the fixed end of the telescopic member is consistent with the center of the pipeline. Then, adjust the telescopic length of the telescopic member to adapt to the inner diameter of the pipeline, enabling the scraper assembly to effectively dredge the inner wall surface of the pipeline;

[0023] 3. It can be used in conjunction with a visual control device, which is communicatively connected to the pipeline dredging device. First, adjust the height of the mounting bracket so that the center of the fixed end of the telescopic member is located on the center line of the pipeline. Then, adjust the telescopic length of the telescopic member so that the scraper can contact the position of the silt on the inner wall surface of the pipeline. Then, start the dredging work and activate the traveling mechanism to make the traveling mechanism move inside the pipeline. When moving, the silt on the inner wall surface of the pipeline is scraped off by the rolling scraper. The rolling scraping resistance is small, the dredging efficiency is high, and the dredging effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The front view of the pipeline dredging device of Embodiment 1 for dredging the inner wall of the pipeline;

[0025] Figure 2 The perspective view of the pipeline dredging device of Embodiment 1 for dredging the inner wall of the pipeline;

[0026] Figure 3 The front view of the scraper assembly of Embodiment 1;

[0027] Figure 4 The perspective view of the traveling mechanism of Embodiment 1;

[0028] Figure 5 The perspective view of the base, swing device, mounting bracket and height adjustment device of Embodiment 1;

[0029] Figure 6 The front view of the pipeline dredging device of Embodiment 2 for dredging the inner wall of the pipeline;

[0030] Figure 7 The perspective view of the pipeline dredging device of Embodiment 2 for dredging the inner wall of the pipeline;

[0031] Figure 8 The perspective view of the traveling mechanism of Embodiment 2;

[0032] Figure 9 The perspective view of the base, swing device and second dredging mechanism of Embodiment 2;

[0033] Figure 10 The right view of the scraper assembly of Embodiment 3;

[0034] Figure 11 The front view of the scraper assembly of Embodiment 4;

[0035] Figure 12Right view of the scraper assembly of Embodiment 4;

[0036] Figure 13 Schematic structural diagram of the pipeline dredging process by the scraper assembly and the limit structure of Embodiment 5.

[0037] Reference numerals are: traveling mechanism 10, base 11, crawler wheels 12, mounting frame 20, rotating mechanism 30, telescopic rod 41, swinging device 13, height adjustment device 21, movable shaft 211, threaded locking member 212, planar dredging mechanism 50, extension frame 51, sweeping disc 52, disc 521, cleaning belt 522, pipeline 60, plane 61, scraper assembly 70, bracket 71, scraper 72, clearance groove 721, sheet-shaped scraping structure 722, buffer structure 73, waist-shaped hole 731, elastic member 732, limit structure 74, side frame 741, support member 742. Detailed implementation manners

[0038] The present utility model provides a pipeline dredging device with a rotating scraper. To make the purpose, technical solution and effects of the present utility model clearer and more definite, the following takes examples with reference to the attached drawings and further elaborates on the present utility model in detail. It should be understood that the specific examples described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0039] In the description of the present utility model, it should be understood that for the orientation description, such as the upper, lower, front, rear, left, right, etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0040] Embodiment 1

[0041] Please refer to Figures 1 to 5 as shown. This embodiment discloses a pipeline dredging device with a rotating scraper, including:

[0042] A traveling mechanism 10, including a base 11 and crawler wheels 12 arranged on both sides of the base 11 and with adjustable angles, and the crawler wheels 12 travel on the inner bottom of the pipeline 60;

[0043] A mounting frame 20, fixed to the base 11 and with adjustable height;

[0044] A telescopic mechanism, including a plurality of telescopic members 41 arranged at intervals in a fan shape on the mounting frame 20 and capable of telescopic adjustment of the length;

[0045] The scraping blade assembly 70 includes a bracket 71 connected to the telescopic end of the telescopic member 41, and a scraping blade 72 rotatably provided on the bracket 71. The scraping blades 72 are circumferentially distributed and are used for dredging the inner wall surface of the pipeline 60. The axial section of the scraping blade 72 is an elliptical structure.

[0046] The pipeline dredging device of this embodiment is applicable to the dredging work of the inner wall surface of the pipeline 60. By setting the traveling mechanism 10, the crawler wheels 12 of the traveling mechanism 10 can travel on the inner bottom of the pipeline 60, thereby driving the scraping blade assembly 40 to travel inside the pipeline 60, realizing dredging while walking without manual operation; there are two crawler wheels 12 and the angle is adjustable, and the angle of the crawler wheels 12 can be adjusted according to the inner diameter of the pipeline 60, so as to adapt to the dredging work of pipelines 60 with different inner diameters.

[0047] In addition, an installation frame 20 is provided on the base 11, and a plurality of telescopic members 41 are provided on the installation frame 20 at fan-shaped intervals. In practical applications, the height of the installation frame 20 can be adjusted according to the inner diameter of the pipeline 60, so that the center of the fixed end of the telescopic member 41 is consistent with the center of the pipeline 60, and then the telescopic length of the telescopic member 41 is adjusted, so as to adapt to the inner diameter of the pipeline 60, so that the scraping blade assembly 70 can effectively dredge the inner wall surface of the pipeline 60.

[0048] During the use of the pipeline dredging device of this embodiment, it can be used in cooperation with a visual control device, which is communicatively connected to the pipeline dredging device of this embodiment. Then, the pipeline dredging device of this embodiment is placed into the pipeline 60 to be dredged. Before dredging, first adjust the height of the installation frame 20 so that the center of the fixed end of the telescopic member 41 is located on the center line of the pipeline 60, and then adjust the telescopic length of the telescopic member 41 so that the scraping blade 72 can contact the position of the silt on the inner wall surface of the pipeline 60, and then carry out the dredging work. Start the traveling mechanism 10 to make the traveling mechanism 10 travel and move inside the pipeline 60. When traveling and moving, the silt on the inner wall surface of the pipeline 60 is scraped off by the rolling scraping blade 72. The rolling scraping resistance is small, and it has a good scraping effect on hard silt.

[0049] In addition, since the scraping blades 72 are arranged at intervals in the circumferential direction, there will be an area where dredging is missed between two scraping blades 72. In order to dredge this area, further, the pipeline dredging device of this embodiment further includes a rotating mechanism 30. The rotating mechanism 30 is fixed to the installation frame 20, and the telescopic member 41 is fixed to the output end of the rotating mechanism 30. The rotation center of the rotating mechanism 30 can be adjusted to be consistent with the center of the pipeline 60. During the dredging process, using the visual control device, determine the position where the silt stock on the inner wall of the pipeline 60 is relatively large, drive one of the scraping blades 72 to rotate to this position through the rotating mechanism 30, and use the forward and backward movement of the traveling mechanism 10 to repeatedly roll and dredge this position through this scraping blade 72 to ensure that the silt can be cleaned up.

[0050] Further, the traveling mechanism 10 of this embodiment further includes swing devices 13 provided on both sides of the base 11. The two swing devices 13 respectively drive the two crawler wheels 12 to swing, thereby adjusting the angles of the two crawler wheels 12, improving the ground gripping effect of the two crawler wheels 12 on the inner wall surface of the pipeline 60, and preventing slipping. It should be noted that the swing device 13 of this embodiment can adopt a swing structure such as that in the prior art, such as the crawler chassis structure in a ring beam swing crawler chassis disclosed in Chinese Patent Publication No. CN203844863U, but is not limited to this structure.

[0051] The mounting frame 20 of this embodiment is provided with a height adjustment device 21. By adjusting the height of the mounting frame 20 through the height adjustment device 21, the rotation center of the rotating mechanism 30 is made to coincide with the center of the pipeline 60, and then the telescopic length of the telescopic member 41 is adjusted, so as to adapt to the inner diameter of the pipeline 60, enabling the first sweeping disc 42 to effectively dredge the inner wall surface of the pipeline 60.

[0052] Please refer to Figure 4 , the mounting frame 20 of this embodiment includes an upper frame body and a lower frame body. The height adjustment device 21 is provided between the upper frame body and the lower frame body. As a preferred embodiment, the height adjustment device 21 of this embodiment is a manual lifting device. The manual lifting device includes a movable shaft 211 and a threaded locking member 212. The movable shaft 211 is connected to the lower end of the upper frame body of the mounting frame 20. An activity hole is provided at the upper end of the lower frame body of the mounting frame 20. The movable shaft 211 can be axially inserted into the activity hole, and a radial screw hole is provided on the lower frame body of the mounting frame 20. The threaded locking member 212 is in threaded cooperation with the screw hole. By loosening or tightening the threaded locking member 212, the movable shaft 211 is released or locked. Using the manual lifting device to adjust the height of the mounting frame 20 can simplify the structure and reduce the equipment cost.

[0053] Of course, the height adjustment device 21 adopting a manual lifting device is only one of the preferred embodiments. In other embodiments, the height adjustment device 21 can also adopt a pneumatic lifting device, a hydraulic lifting device or an electric lifting device, and is not limited to the manual lifting device of this embodiment.

[0054] Further, the telescopic member 41 in this embodiment is a manual telescopic rod. The manual telescopic rod can adopt a rod structure that can be manually adjusted in length in the prior art, such as a manual telescopic rod disclosed in Chinese Patent Publication No. CN111248173B, a manual gear-rotating telescopic rod disclosed in Chinese Patent Publication No. CN117013433A, a new type of manual detachable telescopic rod disclosed in Chinese Patent Publication No. CN114319998A, and other telescopic structures in the prior art. By adjusting the telescopic length of the manual telescopic rod, the scraper 72 can reach the position of the silt on the inner wall surface of the pipeline 60, realizing the effective removal of the silt on the inner wall surface of the pipeline 60.

[0055] Of course, the use of a manual telescopic rod for the telescopic member 41 is only one of the preferred embodiments. In other embodiments, the telescopic member 41 can also adopt a pneumatic telescopic rod, a hydraulic telescopic rod or an electric telescopic rod, and is not limited to the manual telescopic rod in this embodiment.

[0056] Embodiment 2

[0057] Please refer to Figures 6 to 9 , since a flat surface 61 is provided at the inner bottom of some pipelines 60, in order to be able to clean the silt on the flat surface 61 at the inner bottom of the pipeline 60, the pipeline dredging device in this embodiment further includes a flat surface dredging mechanism 50. The flat surface dredging mechanism 50 includes an extension frame 51 fixed at one end of the walking direction of the base 11, a plurality of sweeping disks 52 arranged at the bottom of the extension frame 51, and a driving device for driving the sweeping disks 52 to rotate. The sweeping disks 52 are used to clean the flat surface 61 at the inner bottom of the pipeline 60.

[0058] Before dredging, first adjust the height of the mounting frame 20 so that the center of the fixed end of the telescopic member 41 is located on the center line of the pipeline 60, and then adjust the telescopic length of the telescopic member 41 so that the scraper 72 can reach the position of the silt on the inner wall surface of the pipeline 60. Then start the dredging work and start the walking mechanism 10 to make the walking mechanism 10 move inside the pipeline 60. When moving, the rolling scraper 72 is used to scrape the silt on the inner wall surface of the pipeline 60 by rolling. The rolling scraping resistance is small, and it has a good scraping effect on hard silt.

[0059] Place the pipeline dredging device of this embodiment into the pipeline 60 to be dredged. Before dredging, first adjust the height through the mounting frame 20 so that the center of the fixed end of the telescopic member 41 is located on the center line of the pipeline 60. Then, adjust the telescopic length of the telescopic member 41 so that the scraper 72 can contact the position of the silt on the inner wall surface of the pipeline 60. Then, adjust the height of the extension frame 51 so that the sweeping disc 52 can abut against the plane 61 at the inner bottom of the pipeline 60. Then, start the dredging work. Start the traveling mechanism 10 to make the traveling mechanism 10 travel and move in the pipeline 60. When traveling and moving, the rolling scraper 72 scrapes the silt on the inner wall surface of the pipeline 60 by rolling. At the same time, the driving device drives the sweeping disc 52 to rotate, and the sweeping disc 52 is used to clean the silt on the inner bottom plane 61 of the pipeline 60, realizing effective dredging. It can adapt to the dredging work of the pipeline 60 with the bottom plane 61. Moreover, by using the scraper 72 and the sweeping disc 52, compared with the dredging structure in the prior art, the dredging efficiency is higher and the dredging effect is better.

[0060] Further, the sweeping disc 52 includes a disc 521 detachably connected to the output end of the driving device, and a cleaning belt 522 arranged in a ring shape on the disc 521. The cleaning belt 522 can be made of deformable strip-shaped plastic material, which causes no damage to the inner wall surface of the pipeline 60 during the cleaning process and can effectively avoid scratching the plane 61 at the inner bottom of the pipeline 60.

[0061] Embodiment 3

[0062] Please refer to Figure 10 In this embodiment, the bracket 71 is provided with a buffer structure 73. The buffer structure includes a waist hole 731 provided on the bracket 71 and extending along the telescopic direction of the telescopic member 41, and an elastic member 732 arranged in the waist hole. The rotating shaft of the scraper 72 is connected to the elastic member 732. The elastic member 732 can be an elastic component such as a spring, a spring piece, or rubber. By using the elastic action of the elastic member 732, a buffer action along the telescopic direction of the telescopic member 41 is provided for the scraper 72. When the scraper 72 encounters a relatively hard position and cannot pass through, the buffer action of the telescopic member 41 can be utilized to avoid damage to the scraper 72.

[0063] Embodiment 4

[0064] Please refer to Figure 11 and 12 In this embodiment, the scraper 72 is provided with n radial clearance grooves 721, where n≥1. The clearance grooves 721 divide the scraper 72 into n + 1 sheet-shaped scraping structures 722. When the sheet-shaped scraping structures 722 scrape the silt, the silt can be scraped and fall to the position of the clearance grooves 721. After rotation, the silt in the clearance grooves 721 is thrown off, realizing the smooth scraping of the silt. And the sheet-shaped scraping structures 722 can be designed to be thinner, equivalent to the effect of a blade. By using the sharp structure in a rolling manner, the relatively hard silt can be scraped off, improving the scraping effect.

[0065] Embodiment 5

[0066] Please refer to Figure 13 , in this embodiment, a limiting structure 74 is provided on the bracket 71. The limiting structure 74 includes side frames 741 fixed to both sides of the bracket 71 and capable of adjusting the installation position along the telescopic direction of the telescopic member 41, and a support member 742 fixed to the side frames 741. The support member 742 includes a universal ball seat fixed to the side frames 741 and a universal ball provided on the universal ball seat. The universal ball can abut against the inner wall of the pipeline 60, and the universal ball can move in all directions and adjust the installation position through the side frames 741 to adjust the scraping depth of the scraper 72. Before dredging, the scraping depth of the scraper 72 can be adjusted through the limiting structure 74, and a certain distance is provided between the scraper 72 and the inner wall of the pipeline 60. The scraper 72 is limited by the limiting structure 74 to prevent the scraper 72 from directly contacting the inner wall of the pipeline 60 and damaging the coating on the inner wall of the pipeline 60.

[0067] The above has specifically described the preferred embodiments of the present invention, but the present invention is not limited to the described embodiments. Those skilled in the art can also make various equivalent variations or substitutions without departing from the spirit of the present invention, and these equivalent variations or substitutions are all included within the scope defined by the claims of the present invention.

Claims

1. A pipeline dredging device with a rotary scraper, characterized in that, Comprising: A traveling mechanism (10), including a base (11) and crawler wheels (12) disposed on both sides of the base (11) with adjustable angles, and the crawler wheels (12) travel on the inner bottom of a pipeline (60); A mounting frame (20), fixed to the base (11) and with adjustable height; A telescopic mechanism, including a plurality of telescopic members (41) arranged at intervals in a fan shape on the mounting frame (20) and capable of telescopic adjustment in length; A scraping blade assembly (70), including a bracket (71) connected to the telescopic end of the telescopic member (41) and a scraping blade (72) rotatably disposed on the bracket (71), the scraping blades (72) are circumferentially distributed and used for dredging the inner wall surface of the pipeline (60), and the axial section of the scraping blade (72) is an elliptical structure.

2. The pipe dredging device with a rotary scraper according to claim 1, characterized in that, The pipeline dredging device further includes a rotating mechanism (30), the rotating mechanism (30) is fixed to the mounting frame (20), the telescopic member (41) is fixed to the output end of the rotating mechanism (30), and the rotation center of the rotating mechanism (30) can be adjusted to be consistent with the center of the pipeline (60).

3. The pipeline dredging device with a rotary scraper according to claim 1, characterized in that, The scraping blade (72) is provided with n radial clearance grooves (721) along the radial direction, n≥1, and the clearance grooves (721) divide the scraping blade (72) into n + 1 sheet-shaped scraping structures (722).

4. A pipeline dredging device with a rotary scraper according to claim 1, characterized in that, The traveling mechanism (10) further includes swing devices (13) disposed on both sides of the base (11), and the two swing devices (13) respectively drive the two crawler wheels (12) to swing.

5. The pipe dredging device with a rotary scraper according to claim 1, characterized in that The mounting frame (20) is provided with a height adjustment device (21), and the height adjustment device (21) is a manual lifting device, a pneumatic lifting device, a hydraulic lifting device or an electric lifting device.

6. The pipe dredging device with a rotary scraper according to claim 1, characterized in that The telescopic member (41) is a manual telescopic rod, a pneumatic telescopic rod, a hydraulic telescopic rod or an electric telescopic rod.

7. The pipe dredging device with a rotary scraper according to claim 2, characterized in that, The rotating mechanism (30) is a motor.

8. The pipe dredging device with a rotary scraper according to claim 1, characterized in that, The pipeline dredging device further includes a planar dredging mechanism (50), the planar dredging mechanism (50) includes an extension frame (51) fixed to one end of the traveling direction of the base (11), a plurality of sweeping disks (52) disposed at the bottom of the extension frame (51), and a driving device for driving the sweeping disks (52) to rotate, and the sweeping disks (52) are used for cleaning the plane (61) at the inner bottom of the pipeline (60).

9. The pipe dredging device with a rotary scraper according to claim 8, characterized in that, The sweeping disk (52) includes a disk (521) detachably connected to the output end of the driving device and a cleaning belt (522) arranged in a ring shape on the disk (521).

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