Pipe laying device for municipal works

Abstract

The application discloses a pipe burying device for municipal works, and relates to the technical field of municipal works, which comprises a moving main body, the moving main body is in a frame shape, and a plurality of moving wheels for driving the moving main body to move are rotationally arranged at the bottom of the moving main body; a clamping part for clamping a pipeline is slidably arranged on the moving main body, and the clamping part can rotate on the moving main body; and a plurality of cleaning protrusions are fixed to the side wall of the clamping part. The application has the effect of prolonging the service life of the pipeline.

Description

Technical Field

[0001] This application relates to the field of municipal engineering technology, and in particular to a buried pipe device for municipal engineering. Background Technology

[0002] Pipeline laying is an important construction process in municipal engineering. The main process involves digging pipe trenches according to the design drawings, and then placing pipes of the appropriate type into the trenches for connection and laying.

[0003] Patent application CN202110344313.9 discloses a sewage pipe burial device for municipal engineering and its usage method. The device includes a base plate, with a fixed seat and a drive seat symmetrically fixedly connected to one side of the upper surface of the base plate. An installation plate is movably arranged between the fixed seat and the drive seat. A fixing mechanism is mounted on the installation plate. A through-slot is formed in the middle of the drive seat, in which a drive plate is slidably mounted. A transmission screw is rotatably connected to the bottom of the slot, and the transmission screw is threadedly connected to the drive plate. The drive plate is fixedly connected to one side of the installation plate. The fixing mechanism includes a handle rotatably connected to the middle of the upper surface of the installation plate. This invention, through the addition of a fixing mechanism, allows for control of the depth and position of the clamping clips as needed within the pipe trench, replacing manual labor, saving time and effort, and providing excellent stability. It effectively avoids the need for readjustment due to positional deviations during manual placement, greatly accelerating the progress and efficiency of pipe laying projects.

[0004] In the process of realizing the above application, the inventors discovered that the technology has at least the following problems: during the excavation of the pipe trench, the bottom of the trench will not remain level and is often uneven. This leads to the possibility of pipe damage due to uneven stress when the pipe is placed in the trench, which reduces the service life of the pipe. Summary of the Invention

[0005] In order to improve the service life of pipelines, this application provides a buried pipe device for municipal engineering.

[0006] The buried pipe device for municipal engineering provided in this application adopts the following technical solution: A pipe-laying device for municipal engineering includes a mobile body, which is frame-shaped and has several rotatable wheels at its bottom for driving the movement of the mobile body. A clamping part for clamping the pipe is slidably disposed on the mobile body and can rotate on the mobile body. Several cleaning protrusions are fixed on the side wall of the clamping part.

[0007] By adopting the above technical solution, the clamping part clamps the pipe and transfers it from the ground to the pipe trench. During this transfer process, the opening of the clamping part faces directly upward or diagonally upward to prevent the pipe from falling off. When the clamping part enters the pipe trench, it rotates so that its opening faces vertically downward, and the pipe falls off, completing the pipe laying. At the same time, during the rotation of the clamping part, the cleaning protrusions are cleaned inside the pipe trench, making the ground of the pipe trench level and reducing the possibility of pipe damage caused by unevenness at the bottom of the inner side of the pipe trench.

[0008] Optionally, the moving body is provided with a rotating body, which is C-shaped. The rotating body has an installation groove at its end that fits against the moving body. A first rotating rod and a second rotating rod are fixed to the top inner side of the rotating body. A driving cylinder is rotatably mounted on the first rotating rod. A first driving rod is rotatably mounted at the end of the second rotating rod. The end of the driving cylinder is rotatably connected to the side wall of the first driving rod. A second driving rod is rotatably connected to the end of the first driving rod and the second driving rod is rotatably connected to the clamping part. A third driving rod is rotatably connected to the side wall of the second rotating rod. A fourth driving rod is rotatably connected to the end of the third driving rod and the fourth driving rod is rotatably connected to the side wall of the clamping part.

[0009] By adopting the above technical solution, the cylinder is started, which drives the cylinder piston rod to push the first driving rod to rotate. The first rotating rod drives the second rotating rod to rotate, thereby moving the position of the clamping part. At the same time, during the movement of the clamping part, the third driving rod and the fourth driving rod rotate, thereby moving the clamping part.

[0010] Optionally, the axis of rotation of the first driving rod is parallel to the axis of rotation of the second driving rod, the axis of rotation of the two ends of the second driving rod is parallel to the axis of rotation of the second driving rod, the axis of rotation of the two ends of the third driving rod is perpendicular to the axis of rotation of the second driving rod, and the axis of rotation of the two ends of the fourth driving rod is perpendicular to the axis of rotation of the second driving rod.

[0011] By adopting the above technical solution, since the axial directions of the first and second driving rods are perpendicular to the axial directions of the third and fourth driving rods, the clamping part will not shake during the movement, thus improving the stability of the pipe laying process.

[0012] Optionally, a rotating bar is fixed to the side wall of the clamping part, a driving block is slidably disposed on the rotating bar, a driving turntable is rotatably disposed inside the driving block and the side wall of the driving turntable is in contact with the side wall of the rotating bar, and a driving motor for driving the driving turntable to rotate is fixed on the driving block; the second driving rod and the fourth driving rod are both rotatably disposed on the driving block.

[0013] By adopting the above technical solution, the drive turntable is rotated. Since the side wall of the drive turntable is in contact with the side wall of the rotating bar, the rotating bar is driven to rotate during the rotation of the drive turntable, thereby driving the clamping part to rotate, which facilitates the pipe laying process. Therefore, the clamping part can move vertically on the moving body, and at the same time, it can rotate around its own axis.

[0014] Optionally, the rotating body is rotatably connected to the moving body, the rotating body's shaft is located at its own opening, the moving body's side wall is fixed with a rotating plate, and a plurality of rotating electric cylinders are rotatably connected to the rotating plate, with the piston rods of the rotating electric cylinders rotatably disposed on the side wall of the rotating body.

[0015] By adopting the above technical solution, the rotary electric cylinder can easily drive the rotating body to rotate, thereby facilitating the pipe laying process.

[0016] Optionally, the clamping part includes a first part and a second part, the second part being rotatably connected to the first part, a limit strip being slidably disposed on the first part, and a limit block being fixed on the second part, the limit block being provided with a limit groove for the limit strip to pass through.

[0017] By adopting the above technical solution, the limiting strip is inserted into the limiting groove, thereby restricting the position of the first part and the second part, preventing relative rotation between them, thus facilitating the clamping of the pipe.

[0018] Optionally, a reset block is fixed on the first part, a reset hole is provided on the reset block, the limiting strip is slidably disposed on the inner side wall of the reset hole, and a reset spring for pushing the limiting strip is provided in the reset hole. A positioning groove is provided on the side wall of the limiting block, and a positioning rod is fixed on the side wall of the limiting strip and the positioning rod passes through the positioning groove.

[0019] By adopting the above technical solution, the positioning rod is pushed to move during the movement of the driving block, thereby driving the limit strip to move, which facilitates the process of clamping the pipe.

[0020] Optionally, a docking groove is provided at one end of the clamping part along its length, and a docking block is fixed at the other end of the clamping part along its length. A docking guide surface is provided on the docking block, and a plurality of moving balls are rolled on the inner sidewall of the clamping part.

[0021] By adopting the above technical solution, the docking block is inserted into the docking groove, thereby connecting two adjacent clamping parts and facilitating the docking of the ends of two adjacent pipes.

[0022] Optionally, a drive unit is detachably connected to the clamping part. The drive unit is arc-shaped and an operating block is rotatably connected to the drive unit. An operating disk is rotatably mounted on the operating block. An operating motor for driving the operating disk to rotate is fixed on the operating block. Several operating protrusions are fixed on the side wall of the operating disk.

[0023] By adopting the above technical solution, the operating disc rotates, and at the same time, the operating protrusion abuts against the pipe, which facilitates the movement of the pipe.

[0024] Optionally, the operating protrusion is provided with an operating guide surface, and the operating guide surface makes the end of the operating protrusion have a pointed shape.

[0025] By adopting the above technical solution, the operating protrusion is set in a pointed shape, which facilitates the movement of the pipeline.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. After clamping the pipe, the clamping part is transferred from the ground to the pipe trench. During this transfer, the opening of the clamping part faces directly upward or diagonally upward to prevent the pipe from falling off. When the clamping part enters the pipe trench, it rotates so that its opening faces vertically downward, and the pipe falls off the clamping part, completing the pipe laying. At the same time, during the rotation of the clamping part, the protrusions are cleared and the inside of the pipe trench is cleaned to make the ground of the pipe trench level, reducing the possibility of pipe damage caused by unevenness at the bottom of the inside of the pipe trench. 2. Since the axes of the first and second driving rods are perpendicular to the axes of the third and fourth driving rods, the clamping part will not wobble during the movement, thus improving the stability of the pipe laying process. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the main structure of an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the structure of the first rotating rod, which is also the second rotating rod.

[0029] Figure 3 yes Figure 1 Enlarged view of section A in the middle.

[0030] Figure 4 This is a cross-sectional view of the internal structure of the drive block.

[0031] Figure 5 This is a cross-sectional view of the internal structure of the drive unit.

[0032] Explanation of reference numerals in the attached figures: 1. Moving main body; 2. Moving wheel; 3. Clamping part; 4. Cleaning protrusion; 5. Rotating main body; 6. Mounting slot; 7. First rotating rod; 8. Second rotating rod; 9. Drive cylinder; 10. First driving rod; 11. Second driving rod; 12. Third driving rod; 13. Fourth driving rod; 14. Rotating bar; 15. Drive block; 16. Drive turntable; 17. Drive motor; 18. Rotating plate; 19. Rotating electric cylinder; 20. First part; 21. The first part Two parts; 22. Limiting strip; 23. Limiting block; 24. Limiting groove; 25. Reset block; 26. Reset hole; 27. Positioning groove; 28. Positioning rod; 29. ​​Docking groove; 30. Docking block; 31. Docking guide surface; 32. Moving ball; 33. Drive unit; 34. Operating block; 35. Operating panel; 36. Operating motor; 37. Operating protrusion; 38. Operating guide surface; 40. Rotating groove; 41. First locking groove; 42. First locking block. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0034] This application discloses a buried pipe device for municipal engineering. (Refer to...) Figure 1 The pipe-laying device used in municipal engineering includes a mobile body 1, which moves along the length of a pipe trench dug in the ground. The mobile body 1 also transports the pipe, facilitating its placement within the trench. Several moving wheels 2 are rotatably connected to the bottom of the mobile body 1 via a pivot, driving its movement and facilitating the repositioning of the mobile body 1, thus aiding in the pipe-laying process. The mobile body 1 is equipped with a clamping part 3, which is arc-shaped and can clamp the pipe. The clamping part 3 can rotate along the length of the mobile body 1 and slide vertically along the mobile body 1. 3. Sliding arrangement on the moving body 1. Clamping part 3 is used to clamp the pipe. Several cleaning protrusions 4 are fixed on the outer wall of the clamping part 3 by integral molding. After clamping the pipe, the clamping part 3 is transferred from the ground to the pipe trench. During this transfer, the opening of the clamping part 3 faces directly upward or diagonally upward so that the pipe will not fall off the clamping part 3. When the clamping part 3 enters the pipe trench, the clamping part 3 rotates so that its opening faces vertically downward. The pipe falls off the clamping part 3, and the pipe laying is completed. At the same time, during the rotation of the clamping part 3, the cleaning protrusions 4 clean the inside of the pipe trench, so that the ground of the pipe trench is set horizontally, reducing the possibility of pipe damage caused by unevenness at the bottom of the inside of the pipe trench.

[0035] Reference Figure 1 and Figure 2The moving body 1 is equipped with a rotating body 5, which is C-shaped. One sidewall of the rotating body 5, near its opening, is attached to the upper surface of the moving body 1. A mounting groove 6 is provided on this sidewall, connecting the interior space of the rotating body 5 to the interior of the frame-shaped moving body 1. The rotating shaft of the rotating body 5 is located on the sidewall at its opening, and the rotating body 5 is rotatably connected to the sidewall along the length of the moving body 1. A clamping part 3 is located inside the rotating body 5. The rotating body drives the clamping part 3 to rotate, facilitating the clamping of the pipe. A first rotating rod 7 and a second rotating rod 8 are integrally formed and fixed to the bottom inner side of the rotating body 5. The axis of the first rotating rod 7 is square. The axis of the first rotating rod 7 is parallel to the length direction of the moving body 1, and the axis of the second rotating rod 7 is parallel to the axis of the second rotating rod 8. A driving cylinder 9 is rotatably mounted on the first rotating rod 7 via a rotating shaft. A first driving rod 10 is rotatably mounted on the end of the second rotating rod 8 via a rotating shaft. The piston rod end of the driving cylinder 9 is rotatably connected to the side wall of the first driving rod 10 via a rotating shaft. When the driving cylinder 9 is activated, it drives the first driving rod 10 to rotate around the second rotating rod 8. The first rotating rod 7 is positioned above the second rotating rod 8 to facilitate the rotation of the first driving rod 10. A second driving rod 11 is rotatably connected to the end of the first driving rod 10 via a flipping shaft. The second driving rod 11 is rotatably mounted on the clamping part 3 via a rotating shaft. A third driving rod 12 is rotatably mounted on the side wall of the rotating rod 8 via a rotating shaft. A fourth driving rod 13 is rotatably connected to the end of the third driving rod 12 via a rotating shaft, and the fourth driving rod 13 is rotatably connected to the side wall of the clamping part 3. Furthermore, the axis of the first driving rod 10 is parallel to the axis of the second rotating rod 8; the axes of the two ends of the second driving rod 11 are parallel to the axis of the second rotating rod 8; the axes of the two ends of the third driving rod 12 are perpendicular to the axis of the second rotating rod 8; and the axes of the two ends of the fourth driving rod 13 are perpendicular to the axis of the second rotating rod 8. This drives the cylinder 9 to start, causing the piston rod of the cylinder 9 to push the first driving rod 10 to rotate. The second rotating rod is driven to rotate, thereby moving the position of the clamping part 3. At the same time, during the movement of the clamping part 3, the third driving rod 12 and the fourth driving rod 13 rotate. Since the axial direction of the first driving rod 10 and the second driving rod 11 is perpendicular to the axial direction of the third driving rod 12 and the fourth driving rod 13, the clamping part 3 will not shake during the movement. When the clamping part 3 clamps the pipe and moves in the vertical direction, the clamping part 3 can be driven to move by starting the driving cylinder 9, thereby moving the pipe and facilitating the pipe laying process. At the same time, the clamping part 3 will not shake, which enhances the stability of the pipe laying process. Several devices for controlling the movement of the clamping part 3 as described above are provided.

[0036] Reference Figure 2 , Figure 3 and Figure 4A rotating bar 14 is integrally formed and fixed to the side wall of the clamping part 3. A drive block 15 is slidably mounted on the rotating bar 14. A drive turntable 16 is rotatably mounted inside the drive block 15 via a rotating shaft. The side wall of the drive turntable 16 is in contact with the side wall of the rotating bar 14. A drive motor 17 is fixed to the drive block 15 by bolts. The shaft of the drive motor 17 is keyed to the drive turntable 16. The drive motor 17 drives the drive turntable 16 to rotate. The second drive rod 11 and the fourth drive rod 13 are both rotatably mounted on the drive block 15. When the drive motor 17 starts, it drives the drive turntable 16 to rotate. At the same time, the axis of the rotating bar 14 is in the same direction as the axis of the clamping part 3. The drive block 15 also has a hole for the rotating bar 14 to pass through. The rotating groove 40 has a first locking groove 41 on the side wall of the rotating bar 14. A first locking block 42 is fixed on the inner side wall of the rotating groove 40 and passes through the first locking groove 41, thereby preventing the driving block 15 from disengaging from the rotating bar 14 and allowing the driving block 15 to slide along the length of the rotating bar 14, driving the turntable 16 to rotate. Since the side wall of the driving turntable 16 is in contact with the side wall of the rotating bar 14, the rotating bar 14 is driven to rotate during the rotation of the driving turntable 16, thereby driving the clamping part 3 to rotate, which facilitates the pipe embedding process. Therefore, the clamping part 3 can move vertically on the moving body 1 and can rotate around its own axis. The number of rotating bars 14 corresponds to the number of second rotating rods 8.

[0037] Reference Figure 1 , Figure 2 and Figure 3 The rotating body 5 is rotatably connected to the moving body 1 via a rotating shaft, and the rotating shaft of the rotating body 5 is placed on the side wall of the lifting opening. When the rotating body 5 rotates, the opening of the rotating body 5 contacts the pipe on the ground, and the pipe on the ground is placed inside the rotating body 5 and clamped by the clamping part 3, which facilitates the pipe laying process. The side wall of the moving body 1 is fixed with a rotating plate 18 by an integral molding method. Several rotating electric cylinders 19 are rotatably connected to the rotating plate 18 via a rotating shaft. The piston rod of the rotating electric cylinder 19 is rotatably set on the side wall of the rotating body 5. When the rotating electric cylinder 19 is started, it drives the rotating body 5 to rotate, which facilitates the rotating body 5 to cover the pipe. After the clamping part 3 clamps the pipe, the rotating electric cylinder 19 is reset, so that the pipe is placed directly above the moving body 1, which facilitates the pipe laying process.

[0038] Reference Figure 1 , Figure 2 and Figure 3The clamping part 3 includes a first part 20 and a second part 21. Both the first part 20 and the second part 21 are arc-shaped and have several cleaning protrusions 4. The second part 21 is rotatably connected to the first part 20 via a rotating shaft. A limit strip 22 is slidably mounted on the first part 20, and a limit block 23 is fixed on the second part 21. A limit groove 24 is formed on the limit block 23, and the limit strip 22 passes through the limit groove 24, thereby preventing rotation between the first part 20 and the second part 21. The first part 20 and the second part 21 can rotate and separate, facilitating the clamping of the pipe. After the pipe is clamped, the first part 20 and the second part 21 are fixed. The opening diameter of the holding part 3 is smaller than the pipe diameter, reducing the possibility of the pipe detaching from the clamping part 3. A reset block 25 is integrally formed on the first part 20. The reset block 25 has a reset hole 26. The limiting block 23 passes through the reset hole 26 and is slidably connected to the inner side wall of the reset hole 26. A reset spring is provided in the reset hole 26. One end of the reset spring abuts against the bottom of the inner side of the reset hole 26, and the other end abuts against the limiting block 23. The reset spring is used to push the limiting strip 22 toward the limiting block 23, so that the limiting strip 22 passes through the limiting groove 24, which facilitates the clamping process of the pipe. A positioning rod 28 is integrally formed on the side wall of the limiting strip 22. The number of positioning rods 28 is the same as that of the driving block 15. The number corresponds to the length direction of the positioning rod 28, which is perpendicular to the length direction of the limiting strip 22. A positioning groove 27 is provided on the limiting block 23 for the positioning rod 28 to pass through. During the rotation of the clamping part 3, the side wall of the positioning rod 28 contacts the side wall of the driving block 15. Under the driving action of the driving block 15, the positioning rod 28 is pushed to move, thereby causing the limiting strip 22 to disengage from the limiting groove 24. The first part 20 and the second part 21 can rotate relative to each other, facilitating the clamping process of the pipe. The driving block 15 moves in the opposite direction, and under the action of the return spring, the limiting strip 22 passes through the limiting groove 24. At this time, the first part 20 and the second part 21 cannot rotate, reducing the possibility of the pipe disengaging from the clamping part 3. During the clamping process, the rotating body 5 rotates, and the clamping part 3 rotates simultaneously. The driving block 15 pushes the positioning rod 28 to move, and the limiting strip 22 separates from the limiting groove 24, so that the opening of the clamping part 3 is directly facing the pipe, thereby placing the pipe inside the clamping part 3. The driving block 15 rotates in the opposite direction, and the limiting strip 22 passes through the limiting groove 24. The positions of the first part 20 and the second part 21 are fixed. After the clamping part 3 moves into the pipe groove, the clamping part 3 continues to rotate, and the driving block 15 pushes the positioning rod 28 to move, and the limiting strip 22 separates from the limiting groove 24. The pipe inside the clamping part 3 is released from the clamping part 3 under the action of gravity. At the same time, the cleaning protrusion 4 on the side wall of the clamping part 3 cleans the bottom of the inner side of the pipe groove, reducing the possibility of pipe damage.

[0039] Reference Figure 2 , Figure 3 and Figure 4 One end of the clamping part 3 along its length is provided with a docking groove 29, and the other end of the clamping part 3 along its length is fixed with a docking block 30 by integral molding. The docking block 30 is provided with a docking guide surface 31. When the docking blocks 30 of two adjacent clamping parts 3 are inserted into the docking groove 29, the two clamping parts 3 are coaxially arranged. At this time, the pipes in the two clamping parts 3 are coaxially arranged. By pushing one of the pipes, the ends of the pipes in the two clamping parts 3 can be made to fit together. Several moving balls 32 are embedded in the inner side wall of the clamping part 3, and the moving balls 32 can roll to facilitate the movement of the pipes.

[0040] Reference Figure 1 and Figure 5 A drive unit 33 is detachably connected to the clamping part 3. The drive unit 33 is arc-shaped, and an operating block 34 is rotatably mounted on the drive unit 33. An operating disk 35 is rotatably connected inside the operating block 34 via a rotating shaft. An operating motor 36 is fixed to the operating block 34 by bolts. The rotating shaft of the operating motor 36 is keyed to the operating disk 35. Several operating protrusions 37 are integrally formed on the side wall of the operating disk 35 and are evenly distributed around the axis of the operating disk 35. The operating protrusions 37 have openings... There is an operating guide surface 38, which makes the end of the operating protrusion 37 set in a pointed shape. When it is necessary to control the movement of the pipeline, the drive unit 33 is connected to the clamping unit 3 by bolts, and the operating motor 36 is started. The operating motor 36 drives the operating disk 35 to rotate. The end of the operating protrusion 37 abuts against the side wall of the pipeline. Therefore, the pipeline can be driven to move during the rotation of the operating disk 35. At the same time, the operating block 34 is rotatably set on the drive unit 33. By rotating the operating block 34, the angle of the operating disk 35 can be adjusted to facilitate the movement of the pipeline.

[0041] The implementation principle of a pipe-laying device for municipal engineering in this application embodiment is as follows: The moving body 1 is placed above the pipe trench, and the pipe is placed on the ground adjacent to the moving body 1. The rotating body 5 rotates and is fitted onto the pipe. During this process, the clamping part 3 rotates, causing the first part 20 and the second part 21 to separate and clamp the pipe. After clamping, the clamping part 3 rotates in the opposite direction so that the pipe will not detach from the clamping part 3. The rotating body 5 rotates in the opposite direction, driving the pipe to move onto the moving body 1. At this time, the clamping part 3 moves downward under the action of the cylinder 9 and moves into the pipe trench. The clamping part 3 continues to rotate. During the rotation, the bottom of the inner side of the pipe trench is cleaned. At the same time, during the rotation of the rod, the first part 20 and the second part 21 are not restricted by the limiting strip 22 and the limiting groove 24 and can rotate relative to each other. The pipe detaches from the clamping part 3 under the action of gravity, and the pipe laying is completed.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A buried pipe device for municipal engineering, characterized in that: Includes a mobile body (1), the mobile body (1) is frame-shaped and the bottom of the mobile body (1) is rotatably provided with a number of moving wheels (2) for driving the mobile body (1) to move, the mobile body (1) is slidably provided with a clamping part (3) for clamping the pipe, and the clamping part (3) can rotate on the mobile body (1), and the side wall of the clamping part (3) is fixed with a number of cleaning protrusions (4); A rotating bar (14) is fixed to the side wall of the clamping part (3). A driving block (15) is slidably arranged on the rotating bar (14). A driving turntable (16) is rotatably arranged inside the driving block (15), and the side wall of the driving turntable (16) is in contact with the side wall of the rotating bar (14). A driving motor (17) for driving the driving turntable (16) to rotate is fixed on the driving block (15). The clamping part (3) includes a first part (20) and a second part (21). The second part (21) is rotatably connected to the first part (20). A limit strip (22) is slidably provided on the first part (20). A limit block (23) is fixed on the second part (21). A limit groove (24) for the limit strip (22) to pass through is provided on the limit block (23).

2. The buried pipe device for municipal engineering according to claim 1, characterized in that: The moving body (1) is provided with a rotating body (5), which is C-shaped. The rotating body (5) is fitted with a mounting groove (6) at the end of the moving body (1). The top of the inner side of the rotating body (5) is fixed with a first rotating rod (7) and a second rotating rod (8). A driving cylinder (9) is rotatably provided on the first rotating rod (7). A first driving rod (10) is rotatably provided at the end of the second rotating rod (8). The end of the driving cylinder (9) is rotatably connected to the side wall of the first driving rod (10). A second driving rod (11) is rotatably connected at the end of the first driving rod (10) and the second driving rod (11) is rotatably connected to the clamping part (3). A third driving rod (12) is rotatably connected to the side wall of the second rotating rod (8). A fourth driving rod (13) is rotatably connected at the end of the third driving rod (12) and the fourth driving rod (13) is rotatably connected to the side wall of the clamping part (3).

3. The buried pipe device for municipal engineering according to claim 2, characterized in that: The first driving rod (10) has its axis of rotation parallel to the axis of rotation of the second driving rod (8), the axis of rotation of the two ends of the second driving rod (11) is parallel to the axis of rotation of the second driving rod (8), the axis of rotation of the two ends of the third driving rod (12) is perpendicular to the axis of rotation of the second driving rod (8), and the axis of rotation of the two ends of the fourth driving rod (13) is perpendicular to the axis of rotation of the second driving rod (8).

4. The buried pipe device for municipal engineering according to claim 2, characterized in that: The second driving rod (11) and the fourth driving rod (13) are both rotatably mounted on the driving block (15).

5. The buried pipe device for municipal engineering according to claim 2, characterized in that: The rotating body (5) is rotatably connected to the moving body (1). The rotating body (5) has its shaft positioned at its opening. The moving body (1) has a rotating plate (18) fixed to its side wall. Several rotating electric cylinders (19) are rotatably connected to the rotating plate (18). The piston rod of the rotating electric cylinder (19) is rotatably mounted on the side wall of the rotating body (5).

6. The buried pipe device for municipal engineering according to claim 1, characterized in that: A reset block (25) is fixed on the first part (20). A reset hole (26) is provided on the reset block (25). The limiting strip (22) is slidably disposed on the inner side wall of the reset hole (26). A reset spring for pushing the limiting strip (22) is provided in the reset hole (26). A positioning groove (27) is provided on the side wall of the limiting block (23). A positioning rod (28) is fixed on the side wall of the limiting strip (22) and the positioning rod (28) passes through the positioning groove (27).

7. The buried pipe device for municipal engineering according to claim 1, characterized in that: The clamping part (3) has a docking groove (29) at one end along its length, and a docking block (30) is fixed at the other end along its length. The docking block (30) has a docking guide surface (31) on it, and a number of moving balls (32) are rolled on the inner wall of the clamping part (3).

8. The buried pipe device for municipal engineering according to claim 1, characterized in that: A drive unit (33) is detachably connected to the clamping part (3). The drive unit (33) is arc-shaped and an operating block (34) is rotatably connected to the drive unit (33). An operating disk (35) is rotatably mounted on the operating block (34). An operating motor (36) for driving the operating disk (35) to rotate is fixed on the operating block (34). Several operating protrusions (37) are fixed on the side wall of the operating disk (35).

9. The buried pipe device for municipal engineering according to claim 8, characterized in that: The operation protrusion (37) is provided with an operation guide surface (38), and the operation guide surface (38) makes the end of the operation protrusion (37) pointed.

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