A type of ductile iron pipe adjustment and connection equipment for municipal engineering

Abstract

This invention discloses an adjustment and docking device for ductile iron pipes used in municipal engineering, relating to the field of ductile iron pipe docking and installation technology. It aims to solve the technical problem of insufficient functionality in existing ductile iron pipe adjustment and docking devices. The device includes a clamping body; an adjustment and docking mechanism is provided on one side of the clamping body; the adjustment and docking mechanism includes a suspension connecting frame; and below the suspension connecting frame are sequentially arranged a hollow rotating cavity, an adjustment drive sun rotation cavity, and an adjustment drive center rotation cavity. This invention achieves linear installation of ductile iron pipes by unidirectional axial rotation of the rotating seat through a dual planetary mode drive, and also enables slight tilt adjustment and installation of ductile iron pipes through axial and radial rotation of the rotating seat, effectively improving the functionality of the installation and the installation effect during effective tilt installation.

Description

Technical Field

[0001] This invention relates to the field of ductile iron pipe connection and installation technology, and more specifically, to a ductile iron pipe adjustment and connection device for municipal engineering. Background Technology

[0002] Ductile iron pipes possess the essence of iron and the properties of steel. The graphite in ductile iron pipes exists in a spherical form, typically with a size of 6-7 grades. Quality requirements dictate that the spheroidization grade of the cast iron pipe be controlled at 1-3 grades, with a spheroidization rate ≥80%. This significantly improves the material's mechanical properties, resulting in a combination of the essence of iron and the properties of steel. After annealing, the microstructure of ductile iron pipes consists of ferrite with a small amount of pearlite, exhibiting excellent mechanical properties, superior corrosion resistance, good ductility, and a good sealing effect. They are easy to install and are mainly used for water supply, gas transmission, and oil transportation in municipal and industrial enterprises. With the continuous development of municipal engineering projects in my country, the role of ductile iron pipes is becoming increasingly prominent.

[0003] Based on the existing municipal engineering pipeline laying and the characteristics of ductile iron pipeline contracting operations, the existing pipeline connection installation can be divided into two types: one is straight installation and the other is slightly inclined installation.

[0004] The following is an analysis of the compatibility of straight-installed ductile iron pipes and slightly inclined adjustable ductile iron pipes with straight and rotary installations, respectively:

[0005] Straight-line installation of ductile iron pipes

[0006] The reason it is more suitable for straight-line installation is that it is simple and efficient to operate: it can be directly matched with the straight direction of the pipeline, without the need for additional rotation to adjust the angle, and the pipe spigot can be directly inserted into the socket by simple pushing or other methods, which can improve the construction efficiency.

[0007] High alignment accuracy: With the help of measuring tools, the alignment of the pipeline's central axis can be precisely controlled, ensuring the straightness of the pipeline connection, reducing stress concentration inside the pipeline, and helping to improve the stability and sealing of the pipeline system.

[0008] Reduce rubber ring damage: During straight insertion, the rubber sealing ring is subjected to more uniform compression and friction, making it less prone to damage such as twisting and deformation, thus better ensuring the sealing performance of the interface.

[0009] The reason why rotary installation is relatively unsuitable is due to increased operational complexity: Rotary installation requires additional tools and operations to achieve the rotational insertion of the pipe. For straight-running pipes, these additional operations are unnecessary and increase the complexity and time cost of construction.

[0010] Potential impact on alignment accuracy: During rotation, uneven operating force may cause deviations in the pipe's central axis, affecting installation quality and increasing the difficulty of subsequent adjustments.

[0011] Slightly tilted adjustment for installation of ductile iron pipes

[0012] The reason why it is more suitable for rotational installation is that the angle adjustment is flexible: during the rotational insertion process, the force and direction of rotation can be adjusted in a timely manner according to the inclination of the pipe, gradually correcting the inclination of the pipe and making the pipe better adapt to the installation environment.

[0013] Reduce pipe stress: By rotating the pipe during installation, the pipe's own flexibility can be utilized to a certain extent to reduce the stress caused by forced straight insertion, thus avoiding damage caused by excessive local stress on the pipe.

[0014] Facilitates fine-tuning and correction: For slightly tilted pipes, the rotation installation allows for multiple fine-tuning adjustments. After each rotation, the pipe's tilt and connection status can be checked, enabling more precise installation and correction of the pipes.

[0015] The reason why it is relatively unsuitable for straight installation is that the insertion is difficult: due to the slight inclination of the pipe, there may be greater resistance when inserting it in a straight line, which can easily cause the rubber sealing ring to twist or shift, or even damage the pipe joint.

[0016] Difficulty in ensuring alignment: It is difficult to accurately control the alignment of the pipeline's centerline by inserting it in a straight line, which may lead to problems such as loose pipeline connections and inadequate sealing, affecting the overall performance of the pipeline system.

[0017] Existing ductile iron pipe adjustment and docking equipment mostly only considers straight installation. Therefore, in actual installation, it is often necessary to push the pipes to be installed. This affects the docking installation effect and efficiency in different operating environments. In view of this, we propose a ductile iron pipe adjustment and docking equipment for municipal engineering. Summary of the Invention

[0018] The purpose of this invention is to provide a ductile iron pipe adjustment and connection device for municipal engineering, so as to solve the technical problem of insufficient functionality of existing ductile iron pipe adjustment and connection devices.

[0019] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a ductile iron pipe adjustment and docking device for municipal engineering, comprising a clamping body; an adjustment and docking mechanism is provided on one side of the clamping body; the adjustment and docking mechanism includes a suspension connecting frame; a hollow rotating cavity, an adjustment driving sun rotating cavity, and an adjustment driving center rotating cavity are sequentially arranged below the suspension connecting frame; wherein, a worm gear drive assembly A, a worm gear drive assembly B, and a worm gear drive assembly C are respectively arranged on the sides of the suspension connecting frame opposite to the hollow rotating cavity, the adjustment driving sun rotating cavity, and the adjustment driving center rotating cavity; a docking adjustment assembly is provided inside the hollow rotating cavity; an adjustment driving outer double toothed ring is rotatably arranged inside the adjustment driving sun rotating cavity, and the worm gear drive assembly B and the adjustment... The outer double-toothed ring is a worm gear transmission structure; an inner double-toothed ring is rotatably arranged inside the central rotating cavity of the adjustment drive, and the worm drive assembly C and the inner double-toothed ring of the adjustment drive are worm gear transmission structures; wherein, the gap between the outer double-toothed ring of the adjustment drive and the inner double-toothed ring of the adjustment drive forms a double meshing cavity; wherein, a plurality of double ratchet shaft assemblies are arranged in a ring at equal intervals within the double meshing cavity; an adjustment docking planetary ring frame is rotatably arranged inside the hollow rotating cavity; a plurality of rotating seats are arranged in a ring at equal intervals within the adjustment docking planetary ring frame; a docking wheel seat is rotatably arranged between two adjacent rotating seats; wherein, the gaps within the plurality of docking wheel seats form a central drive toothed ring; an outer drive toothed ring is rotatably arranged in the interlayer of the hollow rotating cavity.

[0020] This invention achieves linear installation of ductile iron pipes by unidirectional axial rotation of the rotating seat through a dual planetary mode drive, and by slightly tilting and adjusting the installation of ductile iron pipes through axial and radial rotation of the rotating seat, effectively improving the functionality of the installation and the installation effect during tilting installation.

[0021] Preferably, the clamping body includes a radial clamp for ductile iron pipes; each clamping end of the radial clamp for ductile iron pipes is rotatably equipped with an auxiliary roller.

[0022] Preferably, the worm drive assembly A, worm drive assembly B and worm drive assembly C are all composed of a drive motor and a worm arranged at the output end of the drive motor.

[0023] Preferably, the outer wall of the adjusting drive outer double toothed ring is provided with a meshing drive vortex A; the inner wall of the adjusting drive outer double toothed ring is provided with a meshing drive tooth A; the adjusting drive inner double toothed ring is convex in shape, and the outer wall of the adjusting drive inner double toothed ring is sequentially provided with a meshing drive vortex B and a meshing drive tooth B; wherein the gap between the meshing drive tooth B and the meshing drive tooth A forms a double meshing cavity.

[0024] Preferably, the dual ratchet shaft assembly includes a plurality of planetary drive gear shafts arranged in a ring at equal intervals in the dual meshing chambers; each planetary drive gear shaft has a drive gear at its end, and the planetary drive gear shaft and the drive gear are connected by a ratchet structure; the plurality of planetary drive gear shafts are connected by a connecting disc.

[0025] Preferably, the outer surface of the docking wheel seat has a plurality of spiral external extrusion grooves at equal intervals in an annular shape; the inner wall of the docking wheel seat has a plurality of spiral internal extrusion grooves at equal intervals in an annular shape; and both axial sides of the docking wheel seat are chamfered; and the outer surface of the docking wheel seat is provided with a rubber layer.

[0026] Preferably, one side of the central drive gear ring is provided with a plurality of pointed cone-shaped auxiliary extrusion protrusions A; the other side of the central drive gear ring is provided with auxiliary teeth that mesh with the transmission gear.

[0027] Preferably, the outer wall of the outer drive gear ring is provided with meshing drive vortex teeth C; the inner wall of the outer drive gear ring is provided with a plurality of synchronous extrusion protrusions in the shape of sharp cones.

[0028] A method for using a ductile iron pipe adjustment and connection device for municipal engineering includes the following steps:

[0029] S100 Clamping Treatment: In conjunction with the suspension device, the ductile iron pipe is clamped by the radial clamp of the ductile iron pipe, and by tilting it so that one end of the ductile iron pipe passes through the clamping cavity of the radial clamp of the ductile iron pipe, so that one end of the ductile iron pipe contacts the rotating seat; and the suspension device is used to move the ductile iron pipe adjusting and docking equipment for municipal engineering to the end of the pipe to be docked as required, and to adjust the required angle.

[0030] S200, Lubrication treatment: Apply lubricating oil to both ends of the ductile iron pipe joint manually;

[0031] S300, docking driver processing:

[0032] S301. If linear propulsion installation is to be performed:

[0033] The double ratchet shaft assembly is driven to rotate at a fixed point by adjusting the outer double toothed ring and the inner double toothed ring. The power input of the double ratchet shaft assembly causes the central drive toothed ring to rotate as a whole. At this time, the planetary transmission gear shaft and the transmission gear are in ratchet meshing state. The rotation of the central drive toothed ring causes the auxiliary extrusion protrusion A to extrude the inner extrusion groove, causing the docking wheel seat to rotate. At the same time, the outer drive toothed ring is driven to rotate synchronously by the worm drive assembly A. The synchronous extrusion protrusion on the inner wall of the outer drive toothed ring is adapted to the inner extrusion groove on the inner wall of the docking wheel seat to cut into it in sequence. At this time, the docking wheel seat only rotates in a self-rotating manner to transport and dock, realizing linear propulsion installation.

[0034] S302. If rotary propulsion installation is performed:

[0035] The double ratchet shaft assembly is driven at low speed by adjusting the outer double-toothed ring and the inner double-toothed ring. The power input of the double ratchet shaft assembly causes the central drive gear ring to rotate. At this time, the planetary transmission gear shaft and the transmission gear are in ratchet meshing state. The rotation of the central drive gear ring causes the auxiliary extrusion protrusion A to extrude the inner extrusion groove, causing the docking wheel seat to rotate. At the same time, the worm gear drive assembly A drives the outer drive gear ring to rotate synchronously. The synchronous extrusion protrusion on the inner wall of the outer drive gear ring and the inner extrusion groove on the inner wall of the docking wheel seat are sequentially engaged. However, due to the difference in rotation speed between the central drive gear ring and the outer drive gear ring, the entire planetary ring frame is adjusted and rotated radially, realizing the propulsion, conveying, docking, and orientation rotation adjustment for rotary propulsion installation.

[0036] Compared with the prior art, the beneficial effects of the present invention are:

[0037] 1. This invention achieves linear installation of ductile iron pipes by unidirectional axial rotation of the rotating seat through a dual planetary mode drive, and by slightly tilting and adjusting the installation of ductile iron pipes through axial and radial rotation of the rotating seat, effectively improving the functionality of the installation and the installation effect during the tilting installation process.

[0038] 2. This invention uses a drive motor to drive the worm gear to rotate, which can then drive the outer double-toothed ring, the inner double-toothed ring, and the outer drive gear ring in a dual planetary mode.

[0039] 3. The present invention enables the double ratchet shaft assembly to perform integral planetary revolution and planetary rotation operations by setting up a double meshing cavity, thereby achieving the driving of the central drive gear ring.

[0040] 4. The present invention features a plurality of spiral external extrusion grooves arranged in an annular pattern on the outer surface of the docking wheel seat, which allow the external drive gear ring to extrude and drive the external extrusion grooves to form a transmission operation; and a plurality of spiral internal extrusion grooves arranged in an annular pattern on the inner wall of the docking wheel seat, which, together with the central drive gear ring, limit the docking wheel seat and enable synchronous rotational movement; and the rubber layer on the outer surface of the docking wheel seat and the chamfering on both sides of the axial direction of the docking wheel seat facilitate the engagement and cutting of the external drive gear ring. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0042] Figure 2 For the present invention Figure 1A magnified view of the structure at point A in the middle;

[0043] Figure 3 This is a schematic diagram of the overall three-dimensional structure of the adjustment and docking mechanism of the present invention;

[0044] Figure 4 This is a three-dimensional structural diagram of the adjustment and docking mechanism of the present invention.

[0045] Figure 5 This is a front view schematic diagram of the docking wheel seat and the central drive gear ring of the present invention;

[0046] Figure 6 This is a three-dimensional structural diagram of the adjustment drive outer double toothed ring, the adjustment drive inner double toothed ring, and the double ratchet shaft assembly of the present invention.

[0047] Figure 7 This is a three-dimensional structural diagram of the docking wheel seat of the present invention.

[0048] Explanation of the labels in the diagram:

[0049] 1. Clamping body; 2. Adjusting docking mechanism; 3. Suspension connecting frame; 4. Docking adjustment assembly; 5. Adjusting drive outer double toothed ring; 6. Adjusting drive inner double toothed ring; 7. Double ratchet shaft assembly; 8. Adjusting docking planetary ring frame; 9. Docking wheel seat; 10. Center drive toothed ring; 11. Outer drive toothed ring;

[0050] 101. Radial clamp for ductile iron pipes; 102. Auxiliary rollers;

[0051] 501. Meshing drive vortex gear A; 502. Meshing drive gear A;

[0052] 601. Meshing drive worm gear B; 602. Meshing drive tooth B;

[0053] 701. Planetary drive gear shaft; 702. Drive gear; 703. Connecting disc;

[0054] 801. Rotating seat;

[0055] 901. Outer extrusion groove; 902. Inner extrusion groove;

[0056] 1001, Auxiliary extrusion protrusion A; 1002, Auxiliary teeth;

[0057] 1101. Meshing drive vortex C; 1102. Synchronous extrusion protrusion;

[0058] 1201. Drive motor. Detailed Implementation

[0059] like Figures 1 to 7As shown, the present invention relates to an adjustment and docking device for ductile iron pipes used in municipal engineering, comprising a clamping body 1; an adjustment and docking mechanism 2 is provided on one side of the clamping body 1; the adjustment and docking mechanism 2 includes a suspension connecting frame 3; a hollow rotating cavity, an adjustment driving sun rotating cavity, and an adjustment driving center rotating cavity are sequentially arranged below the suspension connecting frame 3; wherein, a worm drive assembly A, a worm drive assembly B, and a worm drive assembly C are respectively arranged on the sides of the suspension connecting frame 3 opposite to the hollow rotating cavity, the adjustment driving sun rotating cavity, and the adjustment driving center rotating cavity; a docking adjustment assembly 4 is provided inside the hollow rotating cavity; an adjustment driving outer double toothed ring 5 is rotatably arranged inside the adjustment driving sun rotating cavity, and the worm drive assembly B and the adjustment driving outer double toothed ring 5 are worm wheels. The structure includes a worm gear drive; an adjusting drive inner double-toothed ring 6 is rotatably arranged inside the adjusting drive center rotating cavity, and the worm gear drive assembly C and the adjusting drive inner double-toothed ring 6 form a worm gear drive structure; the gap between the adjusting drive outer double-toothed ring 5 and the adjusting drive inner double-toothed ring 6 forms a double meshing cavity; several double ratchet shaft assemblies 7 are arranged in a ring at equal intervals within the double meshing cavity; an adjusting docking planetary ring frame 8 is rotatably arranged inside the hollow rotating cavity; several rotating seats 801 are arranged in a ring at equal intervals inside the adjusting docking planetary ring frame 8; docking wheel seats 9 are rotatably arranged between two adjacent rotating seats 801; the gaps inside the several docking wheel seats 9 form a center drive toothed ring 10; and an outer drive toothed ring 11 is rotatably arranged in the interlayer of the hollow rotating cavity. This invention achieves linear installation of ductile iron pipes by unidirectional axial rotation of the rotating seat 801 through a dual planetary mode drive, and by slightly tilting and adjusting the installation of ductile iron pipes through axial and radial rotation of the rotating seat 801, effectively improving the functionality of the installation and the installation effect during tilting installation.

[0060] In an embodiment of the present invention, the clamping body 1 includes a radial clamp 101 for ductile iron pipes; each clamping end of the radial clamp 101 for ductile iron pipes is rotatably equipped with an auxiliary roller 102. The present invention uses the rotating auxiliary roller 102 to assist in maintaining the ductile iron pipe in the clamped state to achieve a driven operation for radial adjustment, which facilitates radial movement of the pipe.

[0061] In embodiments of the present invention, worm drive assembly A, worm drive assembly B, and worm drive assembly C are all constructed using a drive motor 1201 and a worm gear arranged at the output end of the drive motor 1201. The present invention achieves worm gear rotation through the drive motor 1201, which can respectively drive the adjusting drive outer double-toothed ring 5, the adjusting drive inner double-toothed ring 6, and the outer drive toothed ring 11 in a dual planetary mode drive.

[0062] In an embodiment of the present invention, the outer wall of the adjusting drive outer double toothed ring 5 is provided with meshing drive vortex teeth A501; the inner wall of the adjusting drive outer double toothed ring 5 is provided with meshing drive teeth A502; the adjusting drive inner double toothed ring 6 is convex in shape, and the outer wall of the adjusting drive inner double toothed ring 6 is sequentially provided with meshing drive vortex teeth B601 and meshing drive teeth B602; wherein, the gap between the meshing drive teeth B602 and the meshing drive teeth A502 forms a double meshing cavity.

[0063] In an embodiment of the present invention, the dual ratchet shaft assembly 7 includes a plurality of planetary transmission gear shafts 701 arranged in a ring with equal spacing and having dual meshing chambers; a transmission gear 702 is provided at the end of each planetary transmission gear shaft 701, and a ratchet structure is formed between the planetary transmission gear shaft 701 and the transmission gear 702; the plurality of planetary transmission gear shafts 701 are connected by a connecting disc 703. The present invention, through the arrangement of dual meshing chambers, enables the dual ratchet shaft assembly 7 to perform integral planetary revolution and planetary rotation operations, thereby driving the central drive gear ring 10.

[0064] In an embodiment of the present invention, the outer surface of the docking wheel seat 9 is provided with a plurality of spirally arranged external extrusion grooves 901 at equal intervals in an annular shape; the inner wall of the docking wheel seat 9 is provided with a plurality of spirally arranged internal extrusion grooves 902 at equal intervals in an annular shape; and both axial sides of the docking wheel seat 9 are chamfered; and a rubber layer is provided on the outer surface of the docking wheel seat 9. The present invention, by providing a plurality of spirally arranged external extrusion grooves 901 at equal intervals in an annular shape on the outer surface of the docking wheel seat 9, enables the external drive gear ring 11 to extrude and drive the external extrusion grooves 901 to form a transmission operation; and by providing a plurality of spirally arranged internal extrusion grooves 902 at equal intervals in an annular shape on the inner wall of the docking wheel seat 9, it cooperates with the central drive gear ring 10 to achieve limiting and synchronous rotational movement of the docking wheel seat 9; and by providing a rubber layer on the outer surface of the docking wheel seat 9 and by providing chamfers on both axial sides of the docking wheel seat 9, it facilitates the engagement and cutting of the external drive gear ring 11.

[0065] In an embodiment of the present invention, a plurality of pointed cone-shaped auxiliary extrusion protrusions A1001 are provided on one side of the central drive gear ring 10; and auxiliary teeth 1002 that mesh with the transmission gear 702 are provided on the other side of the central drive gear ring 10.

[0066] In an embodiment of the present invention, the outer wall of the outer drive gear ring 11 is provided with meshing drive vortex teeth C1101; the inner wall of the outer drive gear ring 11 is provided with a plurality of synchronous extrusion protrusions 1102 in the shape of sharp cones.

[0067] Example 2: This example provides a ductile iron pipe adjustment and connection device for municipal engineering. The usage steps are as follows:

[0068] S100 Clamping Process: In conjunction with the suspension device, the ductile iron pipe is clamped by the radial clamp 101, and by tilting the pipe so that one end of the pipe passes through the clamping cavity of the radial clamp 101, causing one end of the pipe to contact the rotating seat 801; the suspension device is used to move the ductile iron pipe adjusting and docking equipment for municipal engineering to the required docking pipe end and adjust the required angle.

[0069] S200, Lubrication treatment: Apply lubricating oil to both ends of the ductile iron pipe joint manually;

[0070] S300, docking driver processing:

[0071] S301. If linear propulsion installation is to be performed:

[0072] The double ratchet shaft assembly 7 is driven to rotate at a fixed point by adjusting the outer double toothed ring 5 and the inner double toothed ring 6. The power input of the double ratchet shaft assembly 7 causes the central drive toothed ring 10 to rotate as a whole. At this time, the planetary transmission toothed shaft 701 and the transmission gear 702 are in ratchet meshing state. The rotation of the central drive toothed ring 10 causes the auxiliary extrusion protrusion A1001 to extrude the inner extrusion groove 902, causing the docking wheel seat 9 to rotate. At the same time, the outer drive toothed ring 11 is driven to rotate synchronously by the worm drive assembly A. The synchronous extrusion protrusion 1102 on the inner wall of the outer drive toothed ring 11 is adapted to cut into the inner extrusion groove 902 on the inner wall of the docking wheel seat 9 in sequence. At this time, the docking wheel seat 9 only rotates in a self-rotating manner to transport and dock, realizing linear propulsion installation.

[0073] S302. If rotary propulsion installation is performed:

[0074] The double ratchet shaft assembly 7 is driven to rotate at low speed by adjusting the outer double toothed ring 5 and the inner double toothed ring 6. The power input of the double ratchet shaft assembly 7 causes the central drive toothed ring 10 to rotate as a whole. At this time, the planetary transmission gear shaft 701 and the transmission gear 702 are in ratchet meshing state. The rotation of the central drive toothed ring 10 causes the auxiliary extrusion protrusion A1001 to extrude the inner extrusion groove 902, causing the docking wheel seat 9 to rotate. At the same time, the worm drive assembly A drives the outer drive toothed ring 11 to rotate synchronously. The synchronous extrusion protrusion 1102 on the inner wall of the outer drive toothed ring 11 is adapted to engage with the inner extrusion groove 902 on the inner wall of the docking wheel seat 9 in sequence. However, due to the difference in rotation speed between the central drive toothed ring 10 and the outer drive toothed ring 11, the planetary ring frame 8 is adjusted to rotate radially as a whole, realizing the propulsion, conveying, docking, and azimuth rotation adjustment for rotary propulsion installation.

[0075] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A ductile iron pipe adjustment and connection device for municipal engineering, characterized in that, Includes a clamping body (1); an adjustment docking mechanism (2) is provided on one side of the clamping body (1); The adjustment docking mechanism (2) includes a suspension connecting frame (3); a hollow rotating cavity, an adjustment driving solar rotating cavity and an adjustment driving center rotating cavity are arranged sequentially below the suspension connecting frame (3); Among them, the suspension connecting frame (3) is provided with worm drive assembly A, worm drive assembly B and worm drive assembly C on the side opposite to the hollow rotating cavity, the adjusting drive solar rotating cavity and the adjusting drive central rotating cavity respectively; The hollow rotating cavity is equipped with a docking adjustment component (4); The internal rotation of the adjusting drive solar rotation cavity is provided with an adjusting drive outer double toothed ring (5), and the worm drive assembly B and the adjusting drive outer double toothed ring (5) are worm gear transmission structures; The inner rotating cavity of the adjustment drive center is provided with an adjustment drive inner double toothed ring (6), and the worm drive assembly C and the adjustment drive inner double toothed ring (6) are worm gear transmission structures; The gap between the adjusting drive outer double toothed ring (5) and the adjusting drive inner double toothed ring (6) forms a double meshing cavity; and a plurality of double ratchet shaft assemblies (7) are arranged in a ring at equal intervals within the double meshing cavity. The hollow rotating cavity is equipped with an adjustable docking planetary ring frame (8); the adjustable docking planetary ring frame (8) is provided with several rotating seats (801) arranged in a ring at equal intervals. A docking wheel seat (9) is rotatably provided between two adjacent rotating seats (801); Among them, the internal gaps of several of the docking wheel seats (9) form a central drive gear ring (10). An external drive gear ring (11) is rotatably provided in the interlayer of the hollow rotating cavity.

2. The ductile iron pipe adjustment and connection device for municipal engineering according to claim 1, characterized in that, The clamping body (1) includes a radial clamp (101) for ductile iron pipes; each clamping end of the radial clamp (101) for ductile iron pipes is rotatably equipped with an auxiliary roller (102).

3. The ductile iron pipe adjustment and connection device for municipal engineering according to claim 2, characterized in that, The worm drive assembly A, worm drive assembly B and worm drive assembly C are all composed of a drive motor (1201) and a worm arranged at the output end of the drive motor (1201).

4. The ductile iron pipe adjustment and connection device for municipal engineering according to claim 3, characterized in that, The outer wall of the adjusting drive outer double toothed ring (5) is provided with meshing drive vortex teeth A (501); the inner wall of the adjusting drive outer double toothed ring (5) is provided with meshing drive teeth A (502). The inner double toothed ring (6) of the adjustment drive is convex in shape, and the outer wall of the inner double toothed ring (6) of the adjustment drive is provided with meshing drive vortex B (601) and meshing drive tooth B (602) in sequence. The gap between the meshing drive tooth B (602) and the meshing drive tooth A (502) forms a double meshing cavity.

5. A ductile iron pipe adjustment and connection device for municipal engineering according to claim 4, characterized in that, The double ratchet shaft assembly (7) includes a plurality of planetary transmission gear shafts (701) arranged in a ring at equal intervals in the double meshing cavity; the end of the planetary transmission gear shaft (701) is provided with a transmission gear (702), and the planetary transmission gear shaft (701) and the transmission gear (702) are connected by a ratchet structure. Several of the planetary drive gear shafts (701) are connected by a connecting disc (703).

6. A ductile iron pipe adjustment and connection device for municipal engineering according to claim 5, characterized in that, The outer surface of the docking wheel seat (9) is provided with a plurality of spiral external extrusion grooves (901) at equal intervals in an annular shape; the inner wall of the docking wheel seat (9) is provided with a plurality of spiral internal extrusion grooves (902) at equal intervals in an annular shape; and the docking wheel seat (9) is chamfered on both sides in the axial direction; and the outer surface of the docking wheel seat (9) is provided with a rubber layer.

7. A ductile iron pipe adjustment and connection device for municipal engineering according to claim 6, characterized in that, The central drive gear ring (10) has a plurality of cone-shaped auxiliary extrusion protrusions A (1001) on one side; the central drive gear ring (10) has auxiliary teeth (1002) on the other side that mesh with the transmission gear (702).

8. A ductile iron pipe adjustment and connection device for municipal engineering according to claim 7, characterized in that, The outer wall of the outer drive gear ring (11) is provided with meshing drive vortex C (1101); the inner wall of the outer drive gear ring (11) is provided with a number of synchronous extrusion protrusions (1102) in the shape of sharp cones.

9. A method for using a ductile iron pipe adjustment and connection device for municipal engineering, applicable to the ductile iron pipe adjustment and connection device for municipal engineering as described in claim 7, characterized in that... Includes the following steps: S100, Clamping treatment: In conjunction with the suspension device, the ductile iron pipe is clamped by the radial clamp (101) and the pipe is tilted so that one end of the ductile iron pipe passes through the clamping cavity of the radial clamp (101) and contacts the rotating seat (801); the suspension device is used to move the ductile iron pipe adjustment and docking equipment for municipal engineering to the required docking pipe end and adjust the required angle. S200, Lubrication treatment: Apply lubricating oil to both ends of the ductile iron pipe joint manually; S300, docking driver processing: S301. If linear propulsion installation is to be performed: The double ratchet shaft assembly (7) is driven to rotate at a fixed point by adjusting the outer double toothed ring (5) and adjusting the inner double toothed ring (6). The power input of the double ratchet shaft assembly (7) causes the central drive toothed ring (10) to rotate as a whole. At this time, the planetary transmission toothed shaft (701) and the transmission gear (702) are in ratchet meshing state. The rotation of the central drive toothed ring (10) causes the auxiliary extrusion protrusion A (1001) to extrude the inner extrusion groove (902), causing the docking wheel seat (9) to rotate. At the same time, the worm drive assembly A drives the outer drive toothed ring (11) to rotate synchronously, causing the synchronous extrusion protrusion (1102) on the inner wall of the outer drive toothed ring (11) to fit into the inner extrusion groove (902) on the inner wall of the docking wheel seat (9) in sequence. At this time, the docking wheel seat (9) only rotates and transports docking work in a self-rotating manner, realizing linear propulsion installation. S302. If rotary propulsion installation is performed: The double ratchet shaft assembly (7) is driven to rotate at low speed by adjusting the outer double gear ring (5) and the inner double gear ring (6). The power input of the double ratchet shaft assembly (7) causes the central drive gear ring (10) to rotate as a whole. At this time, the planetary transmission gear shaft (701) and the transmission gear (702) are in ratchet meshing state. The rotation of the central drive gear ring (10) causes the auxiliary extrusion protrusion A (1001) to extrude the inner extrusion groove (902), causing the docking wheel seat (9) to rotate. The outer drive gear ring (11) rotates synchronously through the worm gear drive assembly A, causing the synchronous extrusion protrusion (1102) on the inner wall of the outer drive gear ring (11) to fit into the inner extrusion groove (902) on the inner wall of the docking wheel seat (9) in sequence. However, due to the difference in rotation speed between the central drive gear ring (10) and the outer drive gear ring (11), the entire planetary ring frame (8) is radially rotated to achieve propulsion, conveying, docking, and azimuth rotation adjustment for rotary propulsion installation.

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