Buried pipeline dredger

Abstract

The application discloses a buried pipeline dredging device, which comprises a crushing structure, one side of the crushing structure is provided with a driving source structure, a first driving structure is fixedly installed on the side, away from the crushing structure, of the driving source structure, and a guide structure is fixedly connected to the side, away from the driving source structure, of the first driving structure. The buried pipeline dredging device is characterized in that a driving motor drives a rotating plate to rotate through a worm gear transmission part, and then drives a drill bit to rotate; the drill bit can crush obstacles in the pipeline while rotating, so that the obstacles cannot affect the normal conveying of the pipeline; meanwhile, the annular plate drives the grinding block to rotate while rotating; the friction end surface of the grinding block is in contact with the inner wall of the pipeline, so that the grinding block can rub against the inside of the pipeline, thereby further grinding and removing the objects adhered to the inner wall of the pipeline, and the cleaning effect of the obstacles in the pipeline is improved.

Description

Technical Field

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

[0002] A pipeline is a system of pipes, pipe fittings, valves, and other components used to transport gases, liquids, or fluids containing solid particles. Typically, fluids are pressurized by blowers, compressors, pumps, and boilers, flowing from high-pressure areas to low-pressure areas within the pipeline. Alternatively, the fluid's own pressure or gravity can be used for transport. Pipelines have a wide range of applications, primarily in water supply, drainage, heating, gas supply, long-distance transport of oil and natural gas, agricultural irrigation, hydraulic engineering, and various industrial installations. Some pipelines are buried underground, often referred to as buried pipelines.

[0003] This application improves upon existing technology. During current construction processes, buried pipelines are easily blocked by substances such as concrete and gravel due to inadequate protection or malicious damage. Therefore, a buried pipeline dredging device is proposed. The main function of the dredging device is to clean the blockage in the pipeline without damaging the ground, thus clearing the pipeline. Summary of the Invention

[0004] The purpose of this invention is to provide a buried pipe dredging device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides a buried pipe dredging device, comprising a breaking structure, a drive source structure on one side of the breaking structure, a first drive structure fixedly installed on the side of the drive source structure away from the breaking structure, a guide structure fixedly connected to the side of the first drive structure away from the drive source structure, a strong spring fixedly connected to the side of the guide structure away from the first drive structure, and a third drive structure fixedly connected to the side of the strong spring away from the guide structure. The breaking structure includes a circular ring plate, eight clamping structures fixedly installed at equal intervals in a circle on the side of the circular ring plate away from the drive source structure, a rotating plate disposed between the clamping ends of the eight clamping structures, and a plurality of mounting holes equally spaced in a circle on the side of the rotating plate away from the circular ring plate. A drill bit is fixedly connected to the rotating plate through the mounting holes. The drive source structure includes a cover, which is fixedly connected to the circular ring plate. A drive motor is fixedly installed inside the cover, and a worm gear transmission component is disposed at the drive end of the drive motor, and the worm gear transmission component is fixedly connected to the rotating plate.

[0006] In a preferred embodiment, a plurality of hollow square frames are fixedly installed at equal intervals on the outer wall of the annular plate. An installation block is fixedly installed inside the hollow square frame. A grinding frame is fixedly installed on one side of the installation block, and a grinding block is fixedly installed in the inner cavity of the grinding frame.

[0007] In a preferred embodiment, the pressing structure includes a base plate, on which a sliding block adapted to the base plate is slidably connected via a slide rail. A wheel frame is fixedly connected to the bottom of the sliding block, and a roller is rotatably mounted on the bottom of the wheel frame. A groove is provided on one side of the sliding block, and two rotating arms are rotatably mounted on one side of the base plate. A slide rail is provided on one side of each rotating arm, and a short shaft is provided between the groove and the slide rail.

[0008] In a preferred embodiment, the first driving structure and the third driving structure are identical in structure. The third driving structure includes a circular plate, a slide rod fixedly installed at the center of one side of the circular plate, a circular plate two fixedly connected to one end of the slide rod, three hinge seats one fixedly installed on one side of the circular plate two, a rotating block rotatably connected to the circular plate two through the hinge seats one, a fixed column fixedly connected to one end of the rotating block, a U-shaped frame fixedly connected to one end of the fixed column, a guide wheel one rotatably installed in the inner cavity of the U-shaped frame, and a servo motor fixedly connected to the driving end of the guide wheel one, an installation shaft rotatably installed on the outer wall of the U-shaped frame, a sliding sleeve one slidably installed on the outer wall of the slide rod one, three sets of protrusions one fixedly installed on the outer wall of the sliding sleeve one, a connecting frame one rotatably installed between the installation shaft and the protrusions one, and a strong spring two sleeved on the outer wall of the slide rod one between the sliding sleeve one and the circular plate two.

[0009] In a preferred embodiment, the hinge seat 1 includes two square blocks 1, a horizontal shaft 1 is rotatably mounted between the two square blocks 1, and the horizontal shaft 1 is fixedly connected to the rotating block.

[0010] In a preferred embodiment, the guide structure includes a circular plate three, a sliding rod three fixedly connected to the center of one side of the circular plate three, a circular plate four fixedly connected to one end of the sliding rod three, three sliding sleeves three fixedly installed between the opposite surfaces of the circular plate three and the circular plate four, a sliding sleeve three slidably installed on the outer wall of the sliding rod three, a strong spring three sleeved on the outer wall of the sliding rod three and located between the sliding sleeve three and the circular plate three, three sets of protrusions three fixedly installed on the outer wall of the sliding sleeve three, three sets of hinge seats two fixedly installed on the side of the circular plate four near the circular plate three, a connecting frame two rotatably installed on the circular plate four through the hinge seats two, a guide wheel three rotatably installed in the inner cavity of the connecting frame two, two connecting plates two rotatably installed on the outer wall of the connecting frame two, a guide wheel four rotatably installed between the opposite surfaces of the two connecting plates two, and a connecting plate one rotatably installed between the connecting frame two and the protrusions three.

[0011] In a preferred embodiment, a sliding sleeve 2 is slidably mounted on the outer wall of the strong spring 3. Two protrusions 2 are fixedly mounted on the outer wall of the sliding sleeve 2. A connecting frame 3 is rotatably mounted on the two protrusions 2 through a convex shaft provided on their opposite surfaces, and the connecting frame 3 is rotatably connected to the connecting plate 2.

[0012] In a preferred embodiment, the hinge seat consists of two square blocks, with a horizontal shaft rotatably mounted between the two square blocks, and the horizontal shaft is fixedly connected to the connecting frame.

[0013] Compared with the prior art, the beneficial effects of the buried pipe dredging device of the present invention are:

[0014] 1. This invention utilizes a combination of a crushing structure, a drive source structure, a grinding block, a grinding frame, a drill bit, a hollow square frame, a mounting block, a drive motor, mounting holes, a rotating plate, a circular ring plate, a clamping structure, and a worm gear transmission component. The drive motor drives the rotating plate to rotate via the worm gear transmission component, which in turn drives the drill bit to rotate. As the drill bit rotates, it crushes obstacles inside the pipeline to prevent them from affecting the normal transport of goods. Simultaneously, the rotating circular ring plate also drives the grinding block to rotate. The friction end face of the grinding block is in contact with the inner wall of the pipeline, allowing the grinding block to rub against the inside of the pipeline, further grinding and removing objects adhering to the inner wall of the pipeline, thereby improving the removal effect of obstacles inside the pipeline.

[0015] 2. This invention utilizes the combined use of rollers, sliding blocks, sliding grooves, short shafts, rotating arms, base plates, slides, and wheel frames. The rotation of the two rotating arms allows the short shaft to slide inside the slide, which in turn moves the sliding block, thus moving the rollers. When installing the rotating plate, it is placed between multiple rollers, and then the rollers clamp the rotating plate. When disassembling the rotating plate, the contact rollers press against it, thus enabling the installation and disassembly of the rotating plate. Different diameter rotating plates can be installed according to different pipe diameters. Furthermore, the hollow square frame can be installed and replaced, improving the applicability of the drain cleaner to pipes of different sizes. The assembly and disassembly structure is simple, replacement is convenient, and it is easy to use.

[0016] 3. This invention utilizes a first driving structure, a guiding structure, a powerful spring, a third driving structure, a circular plate, a sliding sleeve, a connecting frame, a protrusion, a sliding rod, a second circular plate, a hinge seat, a rotating block, a fixed column, a U-shaped frame, a mounting shaft, a guide wheel, and a servo motor in conjunction. The servo motor drives the guide wheel to rotate, and the guide wheel contacts and rubs against the inner wall of the pipe, thereby achieving automatic movement of the drain cleaner inside the pipe. This allows the drain cleaner to be cleaned of blockages without damaging the ground, thus clearing the pipe and ensuring normal operation within the pipe. The U-shaped frame is rotatably connected to the circular plate 2 via a hinged seat 1. When the pipe diameter is small, the outer wall of the guide wheel 1 contacts the inner wall of the pipe, and the U-shaped frame rotates towards the sliding rod. At this time, the connecting frame 1 drives the sliding sleeve 1 to move upward and compresses the strong spring 2, thereby adjusting the distance between the guide wheel 1 and the sliding rod 1. This allows the drive structure to adapt to different pipe diameters, eliminating the need to switch to a drive structure that matches the pipe diameter, reducing the complexity of use, and thus improving the convenience of using the drain cleaner.

[0017] 4. The present invention utilizes the combined use of protrusion 2, sliding sleeve 2, circular plate 3, circular plate 4, sliding sleeve 3, hinge seat 2, strong spring 3, sliding rod 2, connecting plate 1, connecting frame 2, guide wheel 3, connecting plate 2, connecting frame 3, guide wheel 4, protrusion 3, and sliding rod 3. The principle of the guiding structure is consistent with that of the driving structure, and the guiding structure is applicable to guiding pipes of different sizes, with excellent performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a buried pipeline dredging device according to an embodiment of the present invention;

[0019] Figure 2 This is a plan view of a buried pipeline dredging device according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the guide structure in a buried pipeline dredging device according to an embodiment of the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the annular plate in a buried pipe dredging device according to an embodiment of the present invention.

[0022] Figure 5 This is a planar side view of the annular plate in a buried pipe dredging device according to an embodiment of the present invention;

[0023] Figure 6 A buried pipe dredging device according to an embodiment of the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0024] Figure 7A buried pipe dredging device according to an embodiment of the present invention Figure 1 Enlarged structural diagram at point B;

[0025] Figure 8 This is a schematic diagram of the structure between the first driving structure and the third driving structure in a buried pipeline dredging device according to an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached drawings: 1. Crushing structure; 2. Drive source structure; 3. First drive structure; 4. Guide structure; 5. Strong spring; 6. Third drive structure; 7. Grinding block; 8. Grinding frame; 9. Drill bit; 10. Hollow square frame; 11. Mounting block; 12. Drive motor; 13. Mounting hole; 14. Rotating plate; 15. Circular plate; 16. Pressing structure; 17. Roller; 18. Sliding block; 19. Slide groove; 20. Short shaft; 21. Rotating arm; 22. Base plate; 22. Slide rail; 23. Wheel frame; 24. Circular plate; 25. Sliding sleeve; 26. Connecting frame. 7. 28. 29. 20. 20. 31. 31. 32. 33. 34. 35. 36. 37. 38. 39. 30. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 30. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. 40. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. 40. 51. 52. 53. 54. 55. 56. 57. 58. 59. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 50. 50. 51. 52. 53. 54. 55. 55. 56. 57. 58. 59. 50. 50. 51. 52. 53 ... Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1

[0029] Please see Figures 1-8The buried pipe dredging device of the preferred embodiment of the present invention includes a breaking structure 1. A driving source structure 2 is provided on one side of the breaking structure 1. A first driving structure 3 is fixedly installed on the side of the driving source structure 2 away from the breaking structure 1. A guide structure 4 is fixedly connected to the side of the first driving structure 3 away from the driving source structure 2. A strong spring 5 is fixedly connected to the side of the guide structure 4 away from the first driving structure 3. A third driving structure 6 is fixedly connected to the side of the strong spring 5 away from the guide structure 4. The breaking structure 1 includes a circular ring plate 15. Eight clamping structures 16 are fixedly installed in a circular shape at equal intervals on the side of the circular ring plate 15 away from the driving source structure 2. A rotating plate 14 is provided between the clamping ends of the eight clamping structures 16. A plurality of mounting holes 13 are opened in a circular shape at equal intervals on the side of the rotating plate 14 away from the circular ring plate 15. A drill bit 9 is fixedly connected to the rotating plate 14 through the mounting holes 13. The drive source structure 2 includes a cover, which is fixedly connected to the annular plate 15. A drive motor 12 is fixedly installed inside the cover. The drive end of the drive motor 12 is provided with a worm gear transmission component, which is fixedly connected to the rotating plate 14.

[0030] Furthermore, the outer wall of the annular plate 15 is fixedly mounted with several hollow square frames 10 at equal intervals in a circular shape. The interior of the hollow square frames 10 is fixedly mounted with mounting blocks 11. A grinding frame 8 is fixedly mounted on one side of the mounting block 11, and a grinding block 7 is fixedly mounted in the inner cavity of the grinding frame 8.

[0031] Furthermore, the clamping structure 16 includes a base plate 22, on which a sliding block 18 adapted to be slidingly connected via a slide rail is provided. A wheel frame 24 is fixedly connected to the bottom of the sliding block 18, and a roller 17 is rotatably mounted on the bottom of the wheel frame 24. A groove 19 is provided on one side of the sliding block 18. Two rotating arms 21 are rotatably mounted on one side of the base plate 22, and a slide rail 23 is provided on one side of the rotating arms 21. A short shaft 20 is provided between the groove 19 and the slide rail 23.

[0032] Example 2

[0033] In a preferred embodiment, the first driving structure 3 and the third driving structure 6 have the same structure. The third driving structure 6 includes a circular plate 25, and a slide rod 29 is fixedly installed at the center of one side of the circular plate 25. One end of the slide rod 29 is fixedly connected to a circular plate 30, and three hinge seats 31 are fixedly installed on one side of the circular plate 30. A rotating block 32 is rotatably connected to the circular plate 30 through the hinge seats 31. One end of the rotating block 32 is fixedly connected to a fixing post 33, and one end of the fixing post 33 is fixedly connected to a U-shaped frame 34. A guide wheel 36 is rotatably installed in the inner cavity of the U-shaped frame 34, and a servo motor is fixedly connected to the driving end of the guide wheel 36.

[0034] Furthermore, a mounting shaft 35 is rotatably mounted on the outer wall of the U-shaped frame 34, a sliding sleeve 26 is slidably mounted on the outer wall of the slide rod 29, three sets of protrusions 28 are fixedly mounted on the outer wall of the sliding sleeve 26, and a connecting frame 27 is rotatably mounted between the mounting shaft 35 and the protrusions 28. A strong spring 52 is sleeved on the outer wall of the slide rod 29 between the sliding sleeve 26 and the circular plate 30. The hinge seat 31 includes two square blocks, a horizontal shaft is rotatably mounted between the two square blocks, and the horizontal shaft is fixedly connected to the rotating block 32.

[0035] Example 3

[0036] Furthermore, the guide structure 4 includes a circular plate 39, a slide rod 53 fixedly connected to the center of one side of the circular plate 39, a circular plate 40 fixedly connected to one end of the slide rod 53, and three sliding sleeves 41 fixedly installed between the opposing surfaces of the circular plate 39 and the circular plate 40. Sliding sleeves 41 are slidably installed on the outer wall of the slide rod 53, and a strong spring 43 is sleeved on the outer wall of the slide rod 53 between the sliding sleeves 41 and the circular plate 39. Three sets of protrusions 51 are fixedly installed on the outer wall of the sliding sleeves 41.

[0037] Furthermore, three sets of hinge seats 42 are fixedly installed on the side of circular plate 40 near circular plate 39. A connecting frame 46 is rotatably installed on circular plate 40 via hinge seats 42. A guide wheel 47 is rotatably installed inside the connecting frame 46, and two connecting plates 48 are rotatably installed on the outer wall of the connecting frame 46. A guide wheel 50 is rotatably installed between the opposing surfaces of the two connecting plates 48. A connecting plate 45 is rotatably installed between the connecting frame 46 and the protrusion 51. A sliding sleeve 38 is slidably installed on the outer wall of the strong spring 43. Two protrusions 37 are fixedly installed on the outer wall of the sliding sleeve 38. A connecting frame 49 is rotatably installed on the two protrusions 37 via a convex shaft on their opposing surfaces. The connecting frame 49 is rotatably connected to the connecting plate 48. A horizontal shaft is rotatably installed between two square blocks 2 of the hinge seat 42, and the horizontal shaft is fixedly connected to the connecting frame 46.

[0038] Example 4

[0039] The working principle of the buried pipeline dredging device of the present invention is described in detail below:

[0040] When the buried pipe dredging device of the present invention is used, the drive motor 12 drives the rotating plate 14 to rotate through the worm gear transmission component, which in turn drives the drill bit 9 to rotate. While the drill bit 9 is rotating, it can break up the obstacles inside the pipe to prevent the obstacles from affecting the normal transportation of the pipe. At the same time, the annular plate 15 also drives the grinding block 7 to rotate when it rotates. The friction end face of the grinding block 7 is in contact with the inner wall of the pipe, so that the grinding block 7 can rub against the inside of the pipe, thereby further grinding and removing the objects adhering to the inner wall of the pipe, thus improving the removal effect of obstacles inside the pipe. The rotation of the two rotating arms 21 allows the short shaft 20 to slide inside the slide rail 23, which in turn moves the sliding block 18, thus moving the roller 17. When the rotating plate 14 needs to be installed, it is placed between multiple rollers 17, and then clamped by the rollers 17. When the rotating plate 14 needs to be disassembled, it is simply pressed by the contact rollers 17, thus enabling the installation and disassembly of the rotating plate 14. Different diameter rotating plates 14 can be installed according to different pipe diameters. At the same time, the hollow square frame 10 can also be installed and disassembled, improving the applicability of the drain cleaner to pipes of different sizes. The installation and disassembly structure is simple, and replacement is convenient and easy to use. The servo motor drives the guide wheel 36 to rotate, and the guide wheel 36 contacts and rubs against the inner wall of the pipe, thereby realizing the automatic movement of the drain cleaner inside the pipe. This allows the drain cleaner to clean the blockage in the pipe without damaging the ground, clearing the pipe and ensuring normal flow. The U-shaped frame 34 is rotatably connected to the circular plate 30 via the hinge seat 31. When the pipe diameter is small, the outer wall of the guide wheel 36 contacts the inner wall of the pipe, causing the U-shaped frame 34 to rotate towards the slide rod 29. At this time, the connecting frame 27 drives the sliding sleeve 26 to move upward, compressing the strong spring 52 and adjusting the distance between the guide wheel 36 and the slide rod 29. This allows the drive structure to adapt to different pipe diameters without needing to switch to a different drive structure, reducing the complexity of use and improving the convenience of the drain cleaner. The guide structure 4 operates on the same principle as the drive structure, making it suitable for guiding pipes of different sizes with excellent performance.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A buried pipe dredging device, comprising a breaking structure (1), characterized in that: A drive source structure (2) is provided on one side of the crushing structure (1). A first drive structure (3) is fixedly installed on the side of the drive source structure (2) away from the crushing structure (1). A guide structure (4) is fixedly connected on the side of the first drive structure (3) away from the drive source structure (2). A strong spring (5) is fixedly connected on the side of the guide structure (4) away from the first drive structure (3). A third drive structure (6) is fixedly connected on the side of the strong spring (5) away from the guide structure (4). The crushing structure (1) includes a circular ring plate (15). The side of the circular ring plate (15) away from the drive source structure (2) is circular. Eight clamping structures (16) are fixedly installed at equal intervals. A rotating plate (14) is provided between the clamping ends of the eight clamping structures (16). The rotating plate (14) has a number of mounting holes (13) equidistantly arranged in a circle on the side away from the annular plate (15). A drill bit (9) is fixedly connected to the rotating plate (14) through the mounting holes (13). The drive source structure (2) includes a cover and is fixedly connected to the annular plate (15). A drive motor (12) is fixedly installed inside the cover. A worm gear transmission component is provided at the drive end of the drive motor (12) and is fixedly connected to the rotating plate (14). The guide structure (4) includes a circular plate three (39), a sliding rod three (53) is fixedly connected to the center of one side of the circular plate three (39), a circular plate four (40) is fixedly connected to one end of the sliding rod three (53), three sliding sleeves three (41) are fixedly installed between the opposite surfaces of the circular plate three (39) and the circular plate four (40), the sliding sleeves three (41) are slidably installed on the outer wall of the sliding rod three (53), a strong spring three (43) is sleeved on the outer wall of the sliding rod three (53) and located between the sliding sleeves three (41) and the circular plate three (39), and a fixed spring three (43) is installed on the outer wall of the sliding sleeves three (41). Three sets of protrusions (51), three sets of hinge seats (42) are fixedly installed on the side of the circular plate (40) near the circular plate (39), the circular plate (40) is rotatably installed with a connecting frame (46) through the hinge seat (42), the inner cavity of the connecting frame (46) is rotatably installed with a guide wheel (47), the outer wall of the connecting frame (46) is rotatably installed with two connecting plates (48), the opposite surfaces of the two connecting plates (48) are rotatably installed with a guide wheel (50), and the connecting frame (46) and the protrusions (51) are rotatably installed with a connecting plate (45). The outer wall of the strong spring three (43) is slidably mounted with a sliding sleeve two (38), and the outer wall of the sliding sleeve two (38) is fixedly mounted with two protrusions two (37). The two protrusions two (37) are rotatably mounted with a connecting frame three (49) through a convex shaft set on their opposite surfaces, and the connecting frame three (49) is rotatably connected with the connecting plate two (48).

2. The buried pipeline dredging device according to claim 1, characterized in that: The outer wall of the circular plate (15) is fixedly installed with several hollow square frames (10) at equal intervals. The hollow square frames (10) are fixedly installed with mounting blocks (11). A grinding frame (8) is fixedly installed on one side of the mounting block (11). A grinding block (7) is fixedly installed in the inner cavity of the grinding frame (8).

3. The buried pipeline dredging device according to claim 1, characterized in that: The pressing structure (16) includes a base plate (22), on which a sliding block (18) adapted to it is slidably connected via a slide rail. A wheel frame (24) is fixedly connected to the bottom of the sliding block (18), and a roller (17) is rotatably mounted on the bottom of the wheel frame (24). A groove (19) is provided on one side of the sliding block (18), and two rotating arms (21) are rotatably mounted on one side of the base plate (22). A slide rail (23) is provided on one side of the rotating arms (21), and a short shaft (20) is provided between the groove (19) and the slide rail (23).

4. The buried pipeline dredging device according to claim 1, characterized in that: The first driving structure (3) has the same structure as the third driving structure (6). The third driving structure (6) includes a circular plate (25). A slide rod (29) is fixedly installed at the center of one side of the circular plate (25). A circular plate (30) is fixedly connected to one end of the slide rod (29). Three hinge seats (31) are fixedly installed on one side of the circular plate (30). A rotating block (32) is rotatably connected to the circular plate (30) through the hinge seats (31). A fixed column (33) is fixedly connected to one end of the rotating block (32). A U-shaped ... The U-shaped frame (34) has a guide wheel (36) rotatably mounted in its inner cavity, and a servo motor is fixedly connected to the drive end of the guide wheel (36). The outer wall of the U-shaped frame (34) is rotatably mounted with an installation shaft (35). The outer wall of the slide rod (29) is slidably mounted with a sliding sleeve (26). The outer wall of the sliding sleeve (26) is fixedly mounted with three sets of protrusions (28). A connecting frame (27) is rotatably mounted between the installation shaft (35) and the protrusions (28). A strong spring (52) is sleeved on the outer wall of the slide rod (29) between the sliding sleeve (26) and the circular plate (30).

5. The buried pipeline dredging device according to claim 4, characterized in that: The hinge seat (31) includes two square blocks, and a horizontal shaft is rotatably mounted between the two square blocks, and the horizontal shaft is fixedly connected to the rotating block (32).

6. The buried pipeline dredging device according to claim 1, characterized in that: The hinge seat 2 (42) consists of two square blocks 2, and a horizontal shaft 2 is rotatably installed between the two square blocks 2, and the horizontal shaft 2 is fixedly connected to the connecting frame 2 (46).

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