Hydraulic device for jacking construction of nodular cast iron pipe

Abstract

The invention relates to the technical field of nodular cast iron pipe jacking construction equipment, in particular to a hydraulic device for nodular cast iron pipe jacking construction, which comprises a mounting frame, a support plate, a hydraulic cylinder, a hanger, a traction mechanism and a control assembly. The supporting plate is slidably mounted on the mounting frame, the fixed end of the hydraulic cylinder is fixedly mounted on the mounting frame, the movable end of the hydraulic cylinder is fixedly connected to the supporting plate, and when the hydraulic cylinder works, the supporting plate is pushed to slide on the mounting frame; the hanging piece is mounted on the mounting frame and is used for hanging the mounting frame on a nodular cast iron pipe socket to be jacked; the traction mechanism is installed on the supporting plate and used for fixing an insertion opening of a nodular cast iron pipe to be jacked to a bellmouth where the nodular cast iron pipe is installed. The control assembly is installed on the installation frame and used for controlling the operation state of the hydraulic cylinder. The large-diameter nodular cast iron pipe jacking device has the effect of improving the jacking construction efficiency of the large-diameter nodular cast iron pipe.

Description

Technical Field

[0001] The present application relates to the technical field of ductile iron pipe jacking construction equipment, and in particular to a hydraulic device used for ductile iron pipe jacking construction. Background Art

[0002] With the substantial increase in domestic water conservancy projects, large-diameter ductile iron pipes are increasingly used in large-scale water supply and distribution projects. However, the construction of large-diameter ductile iron pipes is difficult, especially the problem of large volume and weight needs to be overcome during the installation process, which puts higher requirements on construction progress and cost control. Therefore, how to improve the installation efficiency of large-diameter ductile iron pipes has become an important issue in water conservancy project construction.

[0003] In the existing construction technology, in order to cope with the installation difficulties of large-diameter ductile iron pipes, a lifting equipment combined with a fall chain installation method is usually used. The ductile iron pipe to be jacked is lifted by a crane, and fall chains are installed on both sides of the pipe to be jacked and the installed pipe to align the sockets and spigots of the two pipes. The fall chains are manually operated to connect the two pipes. Although this method can connect large-diameter ductile iron pipes, the forces on both sides are not synchronized when the fall chains are manually operated for jacking, resulting in low quality of pipe jacking installation.

[0004] Regarding the above-mentioned related technologies, during the installation process of large-diameter ductile iron pipes, due to the large volume and weight of the pipes, the traditional lifting and chain-falling methods are complicated to operate and labor-intensive, resulting in slow construction progress and poor construction quality, which is difficult to meet the requirements of rapid construction of modern water conservancy projects. Summary of the invention

[0005] In order to improve the butt-jointing installation efficiency of large-diameter ductile iron pipes, the present application provides a hydraulic device for ductile iron pipe jacking construction.

[0006] The present application provides a hydraulic device for ductile iron pipe jacking construction, which adopts the following technical solution: A hydraulic device for ductile iron pipe jacking construction, comprising: Mounting frame; A support plate, the support plate being slidably mounted on the mounting frame; A hydraulic cylinder, wherein a fixed end of the hydraulic cylinder is fixedly mounted on the mounting frame, and a movable end of the hydraulic cylinder is fixedly connected to the support plate; A hanging member, the hanging member is installed on the mounting frame, and the hanging member is used to hang the mounting frame on the ductile iron pipe to be jacked; A pulling mechanism, the pulling mechanism is installed on the support plate, the pulling mechanism comprises a tensioning assembly and a fixing assembly, and the pulling mechanism is used to fix the spigot of the ductile iron pipe to be pushed in at the socket of the installed ductile iron pipe; A control component is installed on the mounting frame, and the control component is used to control the operating state of the hydraulic cylinder.

[0007] By adopting the above technical solution, the device can be quickly and conveniently hung on the socket of the ductile iron pipe to be pushed in through the hanging parts. The structural design of the mounting frame and the support plate makes the structure of the entire device stable, ensuring the stability of the installation process. During the jacking process, the tensioning assembly and the fixing assembly in the pulling mechanism work together to ensure that the socket of the ductile iron pipe to be pushed in is aligned with the socket of the installed ductile iron pipe, and a hydraulic cylinder is used as the jacking power source for jacking. Compared with the traditional manually operated fall chain, it can provide a stronger and more stable thrust, shorten the time for pipe docking, and improve the construction efficiency. At the same time, the precise control of the operating state of the hydraulic cylinder is achieved through the control component, further improving the convenience of operation of the device. In summary, the device significantly improves the docking and installation efficiency of ductile iron pipes and shortens the construction period.

[0008] Optionally, the hanging component includes: A hanging ear, wherein two hanging ears are provided, and the two hanging ears are symmetrically and fixedly mounted at two ends of the mounting frame; A hanging rope, both ends of which are respectively passed through the two hanging ears, and the hanging rope is hung at the socket of the ductile iron pipe to be pushed in; An adjustment lock buckle is installed on the lanyard, and the adjustment lock buckle is used to adjust the length of the lanyard.

[0009] By adopting the above technical solution, the entire device can be conveniently and quickly hung on the socket of the ductile iron pipe to be topped in. The two symmetrically arranged hanging ears ensure the installation stability of the device. The length of the hanging rope can be flexibly adjusted through the hanging rope and the adjustment lock to ensure the applicability and stability of the device on ductile iron pipes of different diameters, thereby improving the flexibility and efficiency of construction.

[0010] Optionally, the tensioning assembly is provided with two groups, and the two groups of the tensioning assemblies are symmetrically installed at both ends of the support plate, and the tensioning assembly includes: A tensioning motor, wherein a fixed end of the tensioning motor is fixedly mounted on the support plate; A reel, the reel is rotatably mounted on the support plate, and the reel is fixedly connected to the output end of the tensioning motor; A steel wire rope, the steel wire rope is wound around the drum, and one end of the steel wire rope is fixedly connected to the drum; A hook is fixedly mounted on an end of the steel wire rope away from the drum.

[0011] By adopting the above technical solution, the tensioning assembly can control the reel through the tensioning motor to perform synchronous tensioning operations on both sides of the pipeline at the same time, ensuring the synchronization of the forces on both sides of the pipeline, so that the ductile iron pipe to be pushed in can be more accurately docked at the socket of the installed ductile iron pipe, avoiding displacement and tilting during the jacking process, thereby improving the stability and safety of the installation. At the same time, the tensioning motor drives the reel to rotate to realize the retraction and release of the wire rope, which is fast and labor-saving. Compared with manual operation of the fall chain tensioning, it greatly improves the construction efficiency and reduces the labor cost and construction time.

[0012] Optionally, the fixing assembly is provided with two groups, and the two groups of the fixing assembly are symmetrically mounted at two ends of the support plate, and the fixing assembly includes: A screw rod, the screw rod is rotatably mounted on the support plate; A mounting ring, the mounting ring being fixedly mounted on one end of the screw rod close to the ductile iron pipe to be pushed in; A fastening nut, the fastening nut being threadedly connected to the screw rod; A pulling rope, one end of which is fixedly connected to the mounting ring, and one end of which is away from the mounting ring is fixedly connected to the installed ductile iron pipe.

[0013] By adopting the above technical solution, after the tensioning assembly tightens the two pipes together, the two ends of the pulling rope are fixedly connected to the mounting ring and the installed ductile iron pipe, and then locked and fixed by rotating the screw rod and the fastening nut. The two aligned ductile iron pipes are fixed from both sides to ensure the reliability and safety of the connection, avoid installation failure or safety accidents caused by looseness, and at the same time make the pipeline more evenly stressed during the jacking process, ensuring stability during the jacking process.

[0014] Optionally, the control component includes: A control box, the control box being fixedly mounted on the mounting frame; An oil tank, the oil tank is arranged in the control box, and hydraulic oil is placed in the oil tank; A hydraulic pump, the hydraulic pump is fixedly installed in the control box, and the hydraulic pump is connected to the oil tank; A drive motor, wherein the drive motor is fixedly installed in the control box, the drive motor is connected to the hydraulic pump, and the drive motor is used to drive the hydraulic pump to operate; An electromagnetic control valve is fixedly installed in the control box and is arranged between the hydraulic pressure and the hydraulic cylinder.

[0015] By adopting the above technical solution, the control box provides a stable installation location, which is convenient for centralized management and maintenance of various control components. During the jacking process, the drive motor provides power for the operation of the hydraulic pump. The hydraulic pump pressurizes the hydraulic oil in the tank and delivers it to the hydraulic cylinder. The electromagnetic control valve can accurately control the flow direction of the oil circuit. By controlling the oil circuit, the hydraulic cylinder can move forward, backward and stop. These components work together to ensure the efficient operation and precise operation of the device, thereby improving the installation efficiency of the ductile iron pipe and making the operation of the entire hydraulic device more stable and reliable.

[0016] Optionally, a protective cover is fixedly mounted on the hanging rope, and the protective cover is used to prevent the hanging rope from damaging the surface of the ductile iron pipe.

[0017] By adopting the above technical solution, the protective cover can effectively prevent the hanging rope from damaging the surface of the ductile iron pipe during the hanging jacking process, thereby ensuring the appearance quality and service life of the pipeline. At the same time, the protective cover can increase the friction between the hanging rope and the pipeline, making the hanging more stable.

[0018] Optionally, a lifting belt is provided on the mounting frame, and both ends of the lifting belt are fixedly mounted on the mounting frame.

[0019] By adopting the above technical solution, during the installation and disassembly process, there is no need for manual transportation. The device can be directly lifted to the next installation location using a lifting device through a lifting belt, which greatly saves time and labor costs. Compared with traditional manual handling methods, this method is faster and more efficient, can significantly shorten the construction period, and further improve construction efficiency.

[0020] Optionally, a plurality of steel bars are fixedly installed at intervals on the outer peripheral side of the fastening nut.

[0021] By adopting the above technical solution, multiple steel bars provide operators with better fulcrums and gripping positions when tightening the locking nuts. During the construction process, operators can more easily hold the steel bars to turn the locking nuts without the need for additional tools, thereby improving the convenience of operation.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: By using hydraulic devices to replace the traditional manually operated fall chain, a more powerful and stable thrust is provided. The operating state of the hydraulic cylinder is accurately controlled by the control components to achieve automatic operation, thus shortening the construction time of pipeline jacking. By setting the hanging parts, the mounting frame can be quickly and conveniently hung on the ductile iron pipe, and can adapt to ductile iron pipes of different diameters. The operation is simple and fast, which greatly improves the installation efficiency. By setting up a pulling mechanism, the tensioning motor and reel in the tensioning assembly can quickly pull the ductile iron pipe to be pushed in, ensuring that its socket is accurately docked with the socket of the fixed ductile iron pipe, reducing labor costs and labor intensity, and then through the screw rod, locking nut and pulling rope in the fixing assembly, the pipe to be pushed in is firmly docked and fixed in the tensioning position, ensuring that during the pushing process, the pipe can be effectively prevented from shaking or deflecting. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the installation of the hydraulic device for jacking construction in the embodiment of the present application; Figure 2 It is a structural schematic diagram of a hydraulic device for jacking construction according to an embodiment of the present application; Figure 3 This is an embodiment of the present application Figure 2 A local enlarged view of point A; Figure 4 It is a structural diagram of an embodiment of the present application for displaying a control component.

[0024] Description of reference numerals: 1. Ductile iron pipe to be pushed in; 2. Mounting frame; 3. Support plate; 4. Hydraulic cylinder; 5. Hanging parts; 51. Hanging ears; 52. Hanging rope; 53. Adjusting lock buckle; 531. Locking plate; 532. Locking ring; 533. Locking nut; 6. Pulling mechanism; 61. Tensioning assembly; 611. Tensioning motor; 612. Reel; 613. Wire rope; 614. Hook; 62. Fixing assembly; 621. Screw rod; 622. Mounting ring; 623. Fastening nut; 624. Pulling rope; 7. Control assembly; 71. Control box; 72. Oil tank; 73. Hydraulic pump; 74. Drive motor; 75. Solenoid control valve; 8. Protective cover; 9. Lifting belt; 10. Steel bar column. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] The following is combined with Figure 1-4 This application is described in further detail.

[0029] The embodiment of the present application discloses a hydraulic device for ductile iron pipe jacking construction.

[0030] Reference Figure 1 The hydraulic device for ductile iron pipe jacking construction includes a mounting frame 2, a support plate 3, two hydraulic cylinders 4, a hanging component 5, two sets of pulling mechanisms 6 and a control component 7. The support plate 3 is slidably mounted on the mounting frame 2, the fixed end of the hydraulic cylinder 4 is fixedly mounted on the mounting frame 2, and the movable end of the hydraulic cylinder 4 is fixedly connected to the support plate 3. When the hydraulic cylinder 4 is working, it pushes the support plate 3 to slide on the mounting frame 2; the hanging component 5 is mounted on the mounting frame 2, and the hanging component 5 is used to hang the mounting frame 2 on the socket of the ductile iron pipe 1 to be jacked; the pulling mechanism 6 is mounted on the support plate 3, and the pulling mechanism 6 includes a tensioning component 61 and a fixing component 62, and the pulling mechanism 6 is used to fix the socket of the ductile iron pipe 1 to be jacked to the socket of the installed ductile iron pipe; the control component 7 is mounted on the mounting frame 2, and the control component 7 is used to control the operating state of the hydraulic cylinder 4.

[0031] When in use, the device is hoisted to the socket of the ductile iron pipe 1 to be jacked by a lifting device such as a crane. After the operator hangs the device on the socket of the ductile iron pipe through the hanging piece 5, the ductile iron pipe is hoisted to the docking installation site, and dust, sand, stones and other debris within the range of the socket are cleaned to ensure that the socket and the socket of the pipe are clean and free of debris. The rubber ring is correctly installed and lubricated with vegetable oil to complete the preparation work before jacking.

[0032] Align the spigot of the pipe to be pushed in with the socket of the installed pipe, start the tensioning assembly 61, slowly push the spigot of the ductile iron pipe 1 to be pushed in into the socket of the installed ductile iron pipe and gradually tighten it, then fix the ductile iron pipe 1 to be pushed in with the installed ductile iron pipe through the fixing assembly 62, ensure that it is tightened and fixed firmly, start the hydraulic cylinder 4 through the control assembly 7, so that the hydraulic cylinder 4 pushes the spigot of the ductile iron pipe 1 to be pushed in gradually into the socket of the installed ductile iron pipe, so that the pipes are firmly connected, the jacking construction is completed, and the hydraulic cylinder 4 is closed for subsequent inspection and pipe trench backfilling.

[0033] Reference Figure 2 and Figure 3 The hanging member 5 includes a hanging ear 51, a hanging rope 52 and an adjustment lock 53. Two hanging ears 51 are provided, and the two hanging ears 51 are symmetrically and fixedly installed at the two ends of the mounting frame 2. The two ends of the hanging rope 52 are passed through the two hanging ears 51 through a rotatable ring structure. The hanging rope 52 is hung at the socket of the ductile iron pipe 1 to be pushed in. A protective cover 8 is fixedly installed on the hanging rope 52, and the protective cover 8 is used to prevent the hanging rope 52 from damaging the surface adjustment of the ductile iron pipe.

[0034] The adjustment lock buckle 53 is installed on the hanging rope 52. The adjustment lock buckle 53 is used to adjust the length of the hanging rope 52. The adjustment lock buckle 53 includes a locking piece 531, a locking ring 532 and a locking nut 533. The locking ring 532 is U-shaped, and both ends of the U-shape are inserted into the locking piece 531. Both ends of the U-shape are provided with threads, which cooperate with the locking nut 533. After the hanging rope 52 is adjusted to a suitable length, it is inserted into the hole surrounded by the locking piece 531 and the locking ring 532, and fixed with the locking nut 533 to achieve the purpose of adjustment.

[0035] When in use, according to the diameter of the ductile iron pipe 1 to be pushed in and the position requirement of the mounting frame 2, the appropriate length of the hanging rope 52 is determined, the hanging rope 52 is pulled to adjust its length to an appropriate position, and then the hanging rope 52 is inserted into the hole surrounded by the locking plate 531 and the locking ring 532, and the locking nut 533 is screwed on the threads at both ends of the U-shape of the locking ring 532, and the locking nut 533 is gradually tightened so that the locking plate 531 and the locking ring 532 tightly clamp the hanging rope 52, and the length of the hanging rope 52 is fixed, and the hanging rope 52 with the adjusted length is hung on the socket of the ductile iron pipe 1 to be pushed in. The protective sleeve 8 on the hanging rope 52 can effectively prevent the hanging rope 52 from damaging the surface of the ductile iron pipe during the hanging and pushing process. The hanging member 5 enables the device to be quickly hung on the socket of the ductile iron pipe 1 to be pushed in with different diameters, and has strong applicability and high flexibility.

[0036] Reference Figure 1 and Figure 2 , there are two groups of tensioning components 61, and the two groups of tensioning components 61 are symmetrically installed at both ends of the support plate 3. The tensioning components 61 include a tensioning motor 611, a drum 612, a steel wire rope 613 and a hook 614. The fixed end of the tensioning motor 611 is fixedly installed on the support plate 3, and the drum 612 is rotatably installed on the support plate 3. The drum 612 is horizontally arranged and the axis of the drum 612 is perpendicular to the ductile iron pipe 1 to be pushed in. The drum 612 is fixedly connected to the output end of the tensioning motor 611, and the steel wire rope 613 is wound on the drum 612. The steel wire rope 613 can be made of high-strength alloy materials such as carbon steel, alloy steel or stainless steel. One end of the steel wire rope 613 is fixedly connected to the drum 612, and the hook 614 is fixedly installed at the end of the steel wire rope 613 away from the drum 612.

[0037] When in use, the socket of the ductile iron pipe 1 to be pushed in is aligned with the socket of the installed ductile iron pipe through the lifting device. After the docking interface is aligned, the hooks 614 on both sides of the tensioning assembly 61 are hung on the installed ductile iron pipe, and the tensioning motor 611 is started. The output end of the tensioning motor 611 drives the reel 612 to rotate, and the wire rope 613 begins to be wound. As the reel 612 rotates, the wire rope 613 is gradually tightened, and the ductile iron pipe 1 to be pushed in, which has been preliminarily docked, is slowly pushed into the socket of the installed pipe and gradually tightened. During the tightening process, the speeds of the tensioning motors 611 on both sides are kept consistent, so that the force on both sides of the pipe mouth is evenly applied. When there is no obvious movement at the socket interface of the two pipes, the tightening is stopped. There is no need for manual tightening, which reduces labor intensity.

[0038] Reference Figure 1 and Figure 2Corresponding to the tensioning assembly 61 , two groups of fixing assemblies 62 are also provided. The two groups of fixing assemblies 62 are symmetrically installed at both ends of the support plate 3 . The fixing assemblies 62 include a screw rod 621 , a fastening nut 623 and a pulling rope 624 . The screw rod 621 is passed through and rotatably installed on the support plate 3. The axis of the screw rod 621 is set parallel to the axis of the ductile iron pipe 1 to be pushed in. A mounting ring 622 is fixedly installed on one end of the screw rod 621. The mounting ring 622 is used to fix the pulling rope 624. The fastening nut 623 is threadedly connected to the end of the screw rod 621 away from the mounting ring 622. Three steel bars 10 are fixedly installed on the outer peripheral side of the fastening nut 623. Generally, welding is used. The steel bars 10 are evenly arranged circumferentially with the axis of the fastening nut 623 as the center. One end of the pulling rope 624 is fixedly connected to the mounting ring 622, and the other end of the pulling rope 624 is detachably connected to the installed ductile iron pipe. The pulling rope 624 should be made of a non-elastic material with high tensile strength.

[0039] When in use, after the tensioning assembly 61 has preliminarily tightened the ductile iron pipe 1 to be pushed in and the installed ductile iron pipe, one end of the pulling rope 624 is fixedly connected to the mounting ring 622 at one end of the screw rod 621 to ensure that the connection is firm and reliable, and the other end of the pulling rope 624 is fixedly connected to the installed ductile iron pipe. A suitable connection method can be used to ensure that the connection is stable and easy to disassemble. When the screw rod 621 is adjusted to a suitable position, the fastening nut 623 is threadedly connected to the end of the screw rod 621 away from the mounting ring 622, and the fastening nut 623 is rotated through the steel column 10 to provide a better fulcrum for screwing the fastening nut 623. The tension of the pulling rope 624 is observed to ensure that the pulling rope 624 always maintains appropriate tension to fix the ductile iron pipe 1 to be pushed in and complete the preparations before pushing.

[0040] Reference Figure 2 and Figure 4 The control assembly 7 includes a control box 71, an oil tank 72, a hydraulic pump 73, a drive motor 74 and an electromagnetic control valve 75. The control box 71 is fixedly mounted on the mounting frame 2, the oil tank 72 is arranged in the control box 71, and hydraulic oil is placed in the oil tank 72. The hydraulic pump 73 is fixedly mounted in the control box 71, and the hydraulic pump 73 is communicated with the oil tank 72. The drive motor 74 is fixedly mounted in the control box 71, and the drive motor 74 is connected with the hydraulic pump 73. The drive motor 74 is used to drive the hydraulic pump 73 to operate. The electromagnetic control valve 75 is fixedly mounted in the control box 71, and the electromagnetic control valve 75 is arranged between the hydraulic pump 73 and the hydraulic cylinder 4.

[0041] During use, after the preparatory work such as tightening and fixing has been completed, the drive motor 74 is started, and the drive motor 74 starts to run to provide power for the hydraulic pump 73. The hydraulic pump 73 transports the oil in the oil tank 72 to the hydraulic cylinder 4, and controls the flow direction and flow of the hydraulic oil through the electromagnetic control valve 75. During jacking, the hydraulic oil flows into the piston chamber of the hydraulic cylinder 4, pushing the piston of the hydraulic cylinder 4 to extend. Since the distance between the support plate 3 and the installed ductile iron pipe is fixed, the hydraulic cylinder 4 will drive the mounting frame 2 to jack forward, thereby driving the ductile iron pipe 1 to be jacked to continuously jack into the socket of the installed ductile iron pipe.

[0042] When the ductile iron pipe jacking construction is completed or needs to be suspended, the electromagnetic control valve 75 is controlled to stop the hydraulic cylinder 4, cut off the flow of hydraulic oil, retract the piston rod of the hydraulic cylinder 4 or keep it at the current position, turn off the drive motor 74, and stop the hydraulic pump 73. The control component 7 realizes the precise control of the hydraulic cylinder 4, ensures the efficient operation and precise operation of the hydraulic device, and improves the installation efficiency of the ductile iron pipe.

[0043] Reference Figure 1 A lifting belt 9 is provided on the mounting frame 2, and both ends of the lifting belt 9 are tied to the mounting frame 2. The two tying positions are symmetrical. When tying, it is necessary to ensure that it is firm and reliable. A suitable knotting method or a special fixing buckle for the lifting belt 9 can be adopted. The entire hydraulic device is lifted up by the lifting belt 9 using a lifting equipment such as a crane or a crane hook to realize the transportation of the device, avoid the heavy labor of manual transportation, and reduce the workload of the construction personnel. At the same time, by lifting with a lifting device, the device can be moved more smoothly, reducing the collision of the device during the transfer process and protecting the integrity and performance of the device.

[0044] The implementation principle of the hydraulic device for ductile iron pipe jacking construction in an embodiment of the present application is as follows: during the jacking construction of the ductile iron pipe, first, the entire device is hung on the socket of the ductile iron pipe 1 to be jacked by means of a hanging member 5, the hanging ears 51 are symmetrically installed on both sides of the mounting frame 2, the hanging rope 52 passes through the hanging ears 51 and is hung on the socket, the adjusting lock buckle 53 can adjust the length of the hanging rope 52 according to actual conditions to ensure that the mounting frame 2 is stably suspended, and at the same time, the protective cover 8 on the hanging rope 52 prevents damage to the surface of the ductile iron pipe.

[0045] The tensioning assembly 61 and the fixing assembly 62 work together, the tensioning motor 611 drives the reel 612 to rotate, tightens the wire rope 613, and pulls the ductile iron pipe to be pushed in closer to the installed ductile iron pipe. The hook 614 is fixed to one end of the wire rope 613 to facilitate connection with the installed ductile iron pipe. One end of the pulling rope 624 is connected to the installed ductile iron pipe, and the other end controls the tension by adjusting the screw rod 621 and the fastening nut 623, thereby ensuring that the installed ductile iron pipe and the ductile iron pipe 1 to be pushed in remain fixed, thereby ensuring the accurate docking of the ductile iron pipe to be pushed in and the installed ductile iron pipe.

[0046] The support plate 3 is driven to slide on the mounting frame 2 by the hydraulic cylinder 4. The driving motor 74 in the control assembly 7 drives the hydraulic pump 73 to extract hydraulic oil from the oil tank 72, and the extension and contraction of the hydraulic cylinder 4 is accurately controlled by the electromagnetic control valve 75. When the hydraulic cylinder 4 works, the support plate 3 is pushed to move, providing stable power for the jacking of the pipeline. The lifting belt 9 on the mounting frame 2 plays an important role in the installation and disassembly process. It can be easily connected with the lifting equipment to realize the rapid transfer of the device without manual transportation, thereby improving the construction efficiency.

[0047] In summary, the hydraulic device realizes the high efficiency, precision and stability of ductile iron pipe jacking construction through the synergistic effect of various components, providing a strong guarantee for engineering construction.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hydraulic device for ductile iron pipe jacking construction, characterized in that: include: Mounting frame (2); A support plate (3), the support plate (3) being slidably mounted on the mounting frame (2); A hydraulic cylinder (4), wherein a fixed end of the hydraulic cylinder (4) is fixedly mounted on the mounting frame (2), and a movable end of the hydraulic cylinder (4) is fixedly connected to the support plate (3); A hanging member (5), the hanging member (5) being mounted on the mounting frame (2), the hanging member (5) being used to hang the mounting frame (2) on the ductile iron pipe (1) to be jacked; A pulling mechanism (6), the pulling mechanism (6) being mounted on the support plate (3), the pulling mechanism (6) comprising a tensioning assembly (61) and a fixing assembly (62), the pulling mechanism (6) being used to fix the spigot of the ductile iron pipe (1) to be pushed in at the socket of the installed ductile iron pipe; A control component (7), the control component (7) being mounted on the mounting frame (2), and the control component (7) being used to control the operating state of the hydraulic cylinder (4).

2. The hydraulic device for ductile iron pipe jacking construction according to claim 1, characterized in that: The hanging component (5) comprises: A hanging ear (51), wherein two hanging ears (51) are provided, and the two hanging ears (51) are symmetrically and fixedly mounted at two ends of the mounting frame (2); A hanging rope (52), the two ends of which are respectively passed through the two hanging ears (51), and the hanging rope (52) is hung on the socket of the ductile iron pipe (1) to be pushed in; An adjusting lock buckle (53), wherein the adjusting lock buckle (53) is mounted on the hanging rope (52), and the adjusting lock buckle (53) is used to adjust the length of the hanging rope (52).

3. The hydraulic device for ductile iron pipe jacking construction according to claim 1, characterized in that: The tensioning assembly (61) is provided in two groups, and the two groups of the tensioning assembly (61) are symmetrically mounted at two ends of the support plate (3). The tensioning assembly (61) comprises: A tensioning motor (611), wherein a fixed end of the tensioning motor (611) is fixedly mounted on the support plate (3); A reel (612), the reel (612) being rotatably mounted on the support plate (3), the reel (612) being fixedly connected to an output end of the tensioning motor (611); a steel wire rope (613), the steel wire rope (613) being wound around the drum (612), one end of the steel wire rope (613) being fixedly connected to the drum (612); A hook (614) is fixedly mounted on an end of the steel wire rope (613) away from the drum (612).

4. The hydraulic device for ductile iron pipe jacking construction according to claim 3, characterized in that: Two groups of the fixing components (62) are provided, and the two groups of the fixing components (62) are symmetrically mounted at two ends of the support plate (3). The fixing components (62) include: a screw rod (621), the screw rod (621) being rotatably mounted on the support plate (3); A mounting ring (622), the mounting ring (622) being fixedly mounted on one end of the screw rod (621) close to the ductile iron pipe (1) to be pushed in; a fastening nut (623), wherein the fastening nut (623) is threadedly connected to the screw rod (621); A pulling rope (624), one end of the pulling rope (624) being fixedly connected to the mounting ring (622), and one end of the pulling rope (624) being away from the mounting ring (622) being fixedly connected to the installed ductile iron pipe.

5. The hydraulic device for ductile iron pipe jacking construction according to claim 1, characterized in that: The control component (7) comprises: A control box (71), the control box (71) being fixedly mounted on the mounting frame (2); An oil tank (72), the oil tank (72) being arranged in the control box (71), and hydraulic oil being placed in the oil tank (72); A hydraulic pump (73), the hydraulic pump (73) being fixedly mounted in the control box (71), the hydraulic pump (73) being in communication with the oil tank (72); a drive motor (74), the drive motor (74) being fixedly mounted in the control box (71), the drive motor (74) being connected to the hydraulic pump (73), and the drive motor (74) being used to drive the hydraulic pump (73) to operate; An electromagnetic control valve (75), wherein the electromagnetic control valve (75) is fixedly installed in the control box (71), and the electromagnetic control valve (75) is arranged between the hydraulic pump (73) and the hydraulic cylinder (4).

6. The hydraulic device for ductile iron pipe jacking construction according to claim 2, characterized in that: A protective sleeve (8) is fixedly mounted on the hanging rope (52), and the protective sleeve (8) is used to prevent the hanging rope (52) from damaging the surface of the ductile iron pipe (1) to be pushed in.

7. The hydraulic device for ductile iron pipe jacking construction according to claim 1, characterized in that: A lifting belt (9) is provided on the mounting frame (2), and both ends of the lifting belt (9) are fixedly mounted on the mounting frame (2).

8. The hydraulic device for ductile iron pipe jacking construction according to claim 4, characterized in that: A plurality of steel bars (10) are fixedly installed at intervals on the outer peripheral side of the fastening nut (623).

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