Rapid installation device for large-diameter nodular cast iron pipe

The design of the guiding mechanism and the docking mechanism solves the problem of insufficient guiding structure in the installation of large-diameter ductile iron pipes, realizing fast and accurate pipe docking and improving installation efficiency and precision.

CN224074292UActive Publication Date: 2026-04-03JIANGSU QILI CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-14
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The lack of a guide structure in the existing technology that allows for quick installation and adjustment results in insufficient installation efficiency and accuracy for large-diameter ductile iron pipes.

Method used

The system employs a guiding mechanism and a docking mechanism, including a transmission block, a moving block, a positioning plate, a guide plate, and a control component. Through cylinder drive and threaded column adjustment, it achieves precise docking and rapid fixation of the pipe body.

Benefits of technology

This improved the docking speed and accuracy of large-diameter ductile iron pipes, reduced installation steps and time, and enhanced overall installation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of pipeline installation, and discloses a quick installation device for a large-diameter nodular cast iron pipe, which comprises a pipe body, a fixed plate is arranged at the top end of the pipe body, a guide mechanism is arranged in the fixed plate, a butt joint mechanism is arranged in the guide mechanism, the guide mechanism comprises two transmission blocks, and the transmission blocks are connected with the butt joint mechanism. The outer portions of the two transmission blocks are slidably connected into the fixing plate, the top ends of the two transmission blocks are fixedly connected with moving blocks, the bottom ends of the two transmission blocks are fixedly connected with positioning plates, the outer portions of the positioning plates are fixedly connected with fixing blocks, and the inner portions of the fixing blocks are slidably connected with moving boxes. According to the pipe body butt-joint device, the guide plate guides the butt-joint direction, the guide wheel assists the pipe body to move, butt-joint accuracy is guaranteed, the threaded column can be rotated according to the wall thickness of the pipe body, the positions of the guide wheel and the guide plate can be adjusted, the requirements of different scenes are met, and the butt-joint speed and accuracy of the pipe body are greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline installation technology, and in particular to a rapid installation device for large-diameter ductile iron pipes. Background Technology

[0002] With the continuous expansion of municipal water supply, drainage, and gas transmission projects, large-diameter ductile iron pipes are playing an increasingly important role in urban infrastructure construction due to their excellent ductility, superior corrosion resistance, and reliable sealing. These pipes are widely used, from urban water supply networks to sewage discharge components and natural gas transmission projects, and are of great significance to ensuring the normal operation of cities. Therefore, higher requirements are placed on the efficiency and stability of their installation technology.

[0003] A search revealed Chinese publication number CN216785446U, which discloses a ductile iron pipe installation device, specifically relating to the field of pipe installation. This ductile iron pipe installation device is used for the installation and connection between two pipes. The device includes a binding assembly, an electric tensioning assembly, and a suspension assembly. One end of the binding assembly is attached to the socket of the first pipe via a sling, and the other end is fixed to the socket of the second pipe via a hook. An electric tensioning assembly is provided between the two ends of the binding assembly.

[0004] The aforementioned patent states in its specification that "when installing the pipe, simply activating the electric tensioning assembly allows both ends of the binding assembly to be pulled and locked, thereby smoothly sliding the insertion end of the second pipe into the socket of the first pipe to complete the installation." However, before the connection, there is a lack of a quick-installation guide structure, or the guide structure cannot be adjusted according to the size and thickness of the tank. Therefore, a quick-installation device for large-diameter ductile iron pipes is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a quick installation device for large-diameter ductile iron pipes, aiming to improve the problem of the lack of a guide structure that can be quickly installed and adjusted in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A quick installation device for a large-diameter ductile iron pipe includes a pipe body, a fixing plate at the top of the pipe body, a guide mechanism inside the fixing plate, a docking mechanism inside the guide mechanism, and two transmission blocks slidably connected to the outside of the two transmission blocks inside the fixing plate. A moving block is fixedly connected to the top of each of the two transmission blocks, and a positioning plate is fixedly connected to the bottom of each of the two transmission blocks. A fixing block is fixedly connected to the outside of the positioning plate, and a moving box is slidably connected inside the fixing block. A connecting column is fixedly connected to the front end of the moving box, and a guide plate is fixedly connected to the front end of the connecting column. Multiple guide wheels are provided inside the moving box, and a control component is provided outside the fixing block.

[0008] The above technical solution utilizes a guiding mechanism composed of components such as a transmission block, a moving block, and a positioning plate. This mechanism allows the positioning plate to clamp the tube, the guide plate to guide, and the guide wheels to assist in movement, thereby achieving precise guidance for tube docking and improving docking efficiency and accuracy.

[0009] As a further description of the above technical solution:

[0010] The outer side of the connecting column is slidably connected to the inside of the fixing block, and the rear end of the guide plate is slidably connected to the front end of the fixing block;

[0011] The above technical solution, which uses a sliding connection between the connecting column and the guide plate and the fixed block, ensures the stability and flexibility of the guide plate during operation, ensures a smooth guiding process, and further improves the pipe body docking accuracy.

[0012] As a further description of the above technical solution:

[0013] The control component includes a threaded post, the external thread of which is connected to the interior of the fixed block, and a cylinder is fixedly connected to the top of the fixed plate.

[0014] The above technical solution, with its threaded connection between the threaded column and the fixed block, combined with the cylinder, provides power and operation for adjusting the position of the moving box, enabling the guide mechanism to be flexibly adjusted according to the pipe wall thickness and other conditions, thus enhancing the applicability of the device.

[0015] As a further description of the above technical solution:

[0016] The front end of the threaded column is rotatably connected to the rear end of the movable box, and the drive end of the cylinder is fixedly connected to one side of the two movable blocks.

[0017] The above technical solution, which connects the threaded column to the moving box and the cylinder to the moving block, enables the effective transmission of power, precise control of the movement of the moving box and related components, and accurate adjustment of the guiding mechanism to meet different docking requirements.

[0018] As a further description of the above technical solution:

[0019] The bottom end of the movable block is slidably connected to the top end of the fixed plate, and the adjacent sides of the two positioning plates are in contact with the outside of the tube body;

[0020] The above technical solutions—the sliding connection between the moving block and the fixed plate, and the contact cooperation between the positioning plate and the tube body—ensure the stability of the guiding mechanism during operation, make the positioning and clamping reliable, and provide a stable foundation for tube body docking.

[0021] As a further description of the above technical solution:

[0022] The docking mechanism includes two limiting blocks, the two limiting blocks are slidably connected to the inside of the positioning plate, a sliding block is fixedly connected to the adjacent side of the two limiting blocks, a telescopic column is fixedly connected to the adjacent side of the two sliding blocks, a spring is sleeved on the outside of the telescopic column, a pull rod is fixedly connected to the outside of the two sliding blocks, and an installation groove is opened on the outside of the positioning plate.

[0023] The above technical solution, consisting of a limiting block, a sliding block, and a telescopic column, forms a docking mechanism that enables the rapid installation and fixation of the sling, facilitating subsequent pulling of the pipe body for docking and improving the convenience of the docking operation.

[0024] As a further description of the above technical solution:

[0025] The two limiting blocks are externally slidably connected inside the mounting groove, and the two ends of the spring are respectively fixedly connected to the adjacent sides of the two sliding blocks;

[0026] The above technical solution allows the limiting block to slide within the mounting groove, and the spring-connected sliding block enables the limiting block to automatically reset and securely restrict the sling, ensuring the stability and reliability of the sling installation.

[0027] As a further description of the above technical solution:

[0028] The positioning plate has a groove on its outside, and the pull rod is slidably connected to the inside of the groove.

[0029] The above technical solution allows the pull rod to slide within the groove, providing operators with a convenient control method, facilitating the operation of the limit block, enabling quick assembly and disassembly of the lasso, and improving docking efficiency.

[0030] This utility model has the following beneficial effects:

[0031] 1. In this utility model, a fixing plate is fitted onto the top of the pipe body, and the cylinder is activated to push the moving block to slide, thereby driving the positioning plate to clamp the pipe body and fix the fixing plate. This can adapt to different pipe body sizes to a certain extent. At this time, the guide plate and guide wheel start to work. The guide plate guides the docking direction, and the guide wheel assists the pipe body to move, ensuring accurate docking. Moreover, the threaded column can be rotated according to the pipe body wall thickness to adjust the position of the guide wheel and guide plate, meet the needs of different scenarios, and greatly improve the speed and accuracy of pipe body docking.

[0032] 2. In this utility model, after the guide mechanism is set up, the docking mechanism can be used to quickly fix the sling. During operation, pull the pull rods in opposite directions to drive the sliding block to make the limiting block slide out of the installation groove. After the sling is put in, release the pull rod. The spring pushes the sliding block to fix the sling with the limiting block. When removing the sling, pull the pull rod again and the sling can be easily taken out. This quick sling removal and installation method reduces the installation steps and time, and significantly improves the overall efficiency of pipe docking. Attached Figure Description

[0033] Figure 1 This is a three-dimensional schematic diagram of a rapid installation device for a large-diameter ductile iron pipe proposed in this utility model.

[0034] Figure 2 This is a schematic diagram of the transmission block of a quick installation device for large-diameter ductile iron pipes proposed in this utility model.

[0035] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0036] Figure 4 This is a schematic diagram of the moving box of a quick installation device for large-diameter ductile iron pipes proposed in this utility model.

[0037] Legend:

[0038] 1. Pipe body; 2. Fixing plate; 3. Guide mechanism; 31. Moving block; 32. Transmission block; 33. Positioning plate; 34. Fixing block; 35. Moving box; 36. Connecting column; 37. Guide plate; 38. Guide wheel; 39. Control component; 391. Threaded column; 392. Cylinder; 4. Docking mechanism; 41. Limiting block; 42. Sliding block; 43. Telescopic column; 44. Spring; 45. Tie rod; 46. Mounting groove. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Reference Figure 1 , Figure 2 and Figure 4 The present invention provides an embodiment of a rapid installation device for a large-diameter ductile iron pipe, comprising a pipe body 1. The pipe body 1, as the main body of the ductile iron pipe, is the core object of the entire installation operation. A fixing plate 2 is provided at the top of the pipe body 1. A guide mechanism 3 is provided inside the fixing plate 2. The guide mechanism 3 plays a crucial guiding role in the docking process of the pipe body 1, ensuring accurate docking of the pipe body 1. A docking mechanism 4 is provided inside the guide mechanism 3. The docking mechanism 4 is responsible for cooperating with external components such as slings to achieve rapid connection and fixation of the pipe body 1.

[0041] Specifically, in actual operation, when it is necessary to install large-diameter ductile iron pipes, the fixing plate 2 is first placed on the top of the pipe body 1. This step provides a basic platform for subsequent guiding and docking operations. Then, the guiding mechanism 3 begins to play its role. Through the internal transmission structure, the guiding mechanism 3 can guide the pipe body 1 to move along the predetermined direction, reducing deviations during docking. The docking mechanism 4 is connected to the externally prepared lasso. The lasso can be connected to the pulling equipment or other auxiliary tools. Under the precise guidance of the guiding mechanism 3, the docking mechanism 4 uses the force of the lasso to quickly and accurately dock the pipe body 1 with another pipe body 1, greatly improving the installation efficiency and docking accuracy, making the entire installation operation smoother and more efficient.

[0042] The guiding mechanism 3 includes two transmission blocks 32, which can slide inside the fixed plate 2. This sliding method provides the motion basis for subsequent positioning and guiding actions. A movable block 31 is fixedly connected to the top of each of the two transmission blocks 32, and a positioning plate 33 is fixedly connected to the bottom of each of the two transmission blocks 32. Driven by the transmission blocks 32, the positioning plate 33 achieves positioning and clamping of the tube body 1. A fixed block 34 is fixedly connected to the outside of the positioning plate 33, and a movable box 35 is slidably connected inside the fixed block 34. The movable box 35 can slide within the fixed block 34, thereby adjusting its position. A connecting post 36 is fixedly connected to the front end of the movable box 35, and a guide plate 37 is fixedly connected to the front end of the connecting post 36. The connecting post 36 connects the movable box 35 and the guide plate 37, transmitting motion and force. When the tube body 1 is docked, the guide plate 37 guides the docking direction of the tube body 1. The guide provides guidance, enabling tube 1 to accurately dock with another tube 1, greatly improving the accuracy and success rate of docking. The movable box 35 is equipped with multiple guide wheels 38 inside. During the movement of tube 1, the guide wheels 38 can reduce the friction between tube 1 and the device. Like wheels rolling on a track, they provide auxiliary support and movement for tube 1, ensuring the smooth movement of tube 1 during docking and thus ensuring the accuracy of docking. The fixed block 34 is equipped with a control component 39 on the outside. The control component 39 is used to adjust and control the position of components such as the movable box 35. The external sliding connection of the connecting column 36 is inside the fixed block 34, which allows the connecting column 36 to maintain stable guidance during movement. The rear end of the guide plate 37 is slidably connected to the front end of the fixed block 34, further ensuring the stability of the guide plate 37 during operation.

[0043] Specifically, after the fixing plate 2 is placed on the top of the tube body 1, the cylinder 392 is activated. The driving end of the cylinder 392 pushes the moving block 31 to slide on the top of the fixing plate 2, which drives the transmission block 32 connected to it. The transmission block 32 moves down, causing the positioning plate 33 to move towards each other, tightly clamping the tube body 1 and fixing the fixing plate 2. At this time, the fixing block 34 is in place with the positioning plate 33, providing support for the subsequent guiding components. The initial positioning work of the installation device on the tube body 1 is completed, preparing for the docking of the tube body 1.

[0044] Control component 39 includes a threaded post 391, which, through a threaded connection with the fixed block 34, enables linear motion during rotation, thereby driving the connected components to move. The external thread of the threaded post 391 is connected to the inside of the fixed block 34. This connection provides constraint and power transmission for the movement of the threaded post 391. A cylinder 392 is fixedly connected to the top of the fixed plate 2, providing power to drive components such as the moving block 31 to move. The front end of the threaded post 391 is rotatably connected to the rear end of the moving box 35, enabling... The rotation of the threaded column 391 can be effectively transmitted to the movable box 35, driving it to move. The drive end of the cylinder 392 is fixedly connected to the adjacent side of the two movable blocks 31. When the cylinder 392 is started, it can directly push the movable block 31 to slide on the top of the fixed plate 2. The bottom end of the movable block 31 is slidably connected to the top of the fixed plate 2, ensuring the stability of the movable block 31 during movement. The adjacent side of the two positioning plates 33 is in contact with the outside of the tube body 1. Through this contact, the tube body 1 is positioned and clamped, ensuring that the position of the fixed plate 2 is fixed.

[0045] Specifically, rotating the threaded column 391, because it is threadedly connected to the fixed block 34, pushes the movable box 35 to slide within the fixed block 34. The movable box 35 drives the connecting column 36 and the guide plate 37 to move. At the same time, the position of the guide wheel 38 inside the movable box 35 also changes accordingly. After adjusting the position according to the wall thickness of the tube body 1, the guide plate 37 can accurately guide the docking direction of the tube body 1, and the guide wheel 38 assists the tube body 1 to move smoothly, ensuring accurate docking.

[0046] Reference Figures 1 to 3The docking mechanism 4 includes two limiting blocks 41, which serve to restrict and fix the lasso within the docking mechanism 4. The two limiting blocks 41 are externally slidably connected to the inside of the positioning plate 33. This sliding connection allows the limiting blocks 41 to move flexibly within the positioning plate 33. Sliding blocks 42 are fixedly connected to adjacent sides of each of the two limiting blocks 41. The connection between the sliding blocks 42 and the limiting blocks 41 effectively transmits external force, driving the limiting blocks 41 to move. Telescopic columns 43 are fixedly connected to adjacent sides of the two sliding blocks 42. The telescopic columns 43 can extend and retract during the movement of the sliding blocks 42, serving as a buffer and resetting mechanism. A spring 44 is sleeved on the outside of the telescopic columns 43, providing a resetting mechanism for the sliding blocks 42 and the limiting blocks 41. The system includes two sliding blocks 42, each with a fixed pull rod 45. The pull rod 45 allows operators to manually control the sliding blocks 42 and the limiting blocks 41. The positioning plate 33 has an external mounting groove 46, which provides space for the lasso. The two limiting blocks 41 are externally slidably connected to the inside of the mounting groove 46, allowing the limiting blocks 41 to restrict and fix the lasso installed in the mounting groove 46. The two ends of the spring 44 are fixedly connected to the adjacent sides of the two sliding blocks 42, ensuring that the spring 44 can effectively apply a restoring force to the sliding blocks 42. The positioning plate 33 has an external sliding groove, and the pull rod 45 is externally slidably connected to the inside of the sliding groove, allowing the pull rod 45 to maintain stable guidance during movement.

[0047] Specifically, before connecting pipe body 1, a sling needs to be installed. The operator pulls the lever 45 in opposite directions. The lever 45 drives the sliding block 42, causing the limiting block 41 to slide out of the installation groove 46. After the sling is placed into the installation groove 46, the lever 45 is released, the spring 44 returns to its original position, and the sliding block 42 is pushed so that the limiting block 41 tightly locks the sling, completing the quick installation of the sling and facilitating the subsequent connection of another pipe body 1 for docking operations.

[0048] Working principle: When the operator needs to dock two pipe bodies 1, the outer part of the fixing plate 2 is fitted onto the top of one of the pipe bodies 1. Then, the cylinder 392 is activated, causing two moving blocks 31 to slide on the top of the fixing plate 2. This causes two transmission blocks 32 to drive a positioning plate 33 to move, so that the two positioning plates 33 clamp the outside of the pipe body 1, thereby fixing the position of the fixing plate 2. At this time, the fixing block 34 will be set at the front end of the fixing plate 2. The guide plate 37 will guide the docking of the pipe bodies 1. The guide wheel 38 will assist the movement of the pipe body 1 to ensure the accuracy of docking. The operator can adjust the position of the moving box 35 according to the wall thickness of the pipe body 1. By rotating the threaded column 391, the moving box 35 slides inside the fixing block 34, thereby changing the position of the guide wheel 38 and the guide plate 37 to meet different usage scenarios. Through the quick and adjustable guide structure, the docking speed and effect between the pipe bodies 1 are improved.

[0049] After the guide mechanism 3 is set up, the lasso can be quickly fixed inside the docking mechanism 4, facilitating the subsequent pulling of the pipe body 1. First, by pulling the two pull rods 45 in opposite directions, the sliding block 42 drives the limiting block 41 to move, causing the limiting block 41 to slide out of the installation groove 46. At this time, the lasso can be placed inside the installation groove 46. Then, the control of the pull rods 45 is released, and the spring 44 will automatically push the two sliding blocks 42 to slide, so that the two limiting blocks 41 restrict the lasso, completing the installation. When disassembly is required, the two pull rods 45 are pulled again, allowing the lasso to slide out of the installation groove 46. The efficiency of docking the pipe body 1 is improved by quickly installing and removing the lasso.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick installation device for large-diameter ductile iron pipes, comprising a pipe body (1), characterized in that: The top of the tube (1) is provided with a fixing plate (2), the inside of the fixing plate (2) is provided with a guide mechanism (3), and the inside of the guide mechanism (3) is provided with a docking mechanism (4). The guiding mechanism (3) includes two transmission blocks (32). The two transmission blocks (32) are slidably connected to the inside of the fixed plate (2). The top of each of the two transmission blocks (32) is fixedly connected to a moving block (31). The bottom of each of the two transmission blocks (32) is fixedly connected to a positioning plate (33). The outside of the positioning plate (33) is fixedly connected to a fixed block (34). The inside of the fixed block (34) is slidably connected to a moving box (35). The front end of the moving box (35) is fixedly connected to a connecting column (36). The front end of the connecting column (36) is fixedly connected to a guide plate (37). The inside of the moving box (35) is provided with multiple guide wheels (38). The outside of the fixed block (34) is provided with a control component (39).

2. The quick installation device for large-diameter ductile iron pipes according to claim 1, characterized in that: The external part of the connecting column (36) is slidably connected to the inside of the fixing block (34), and the rear end of the guide plate (37) is slidably connected to the front end of the fixing block (34).

3. The quick installation device for large-diameter ductile iron pipes according to claim 1, characterized in that: The control component (39) includes a threaded post (391), the external thread of which is connected to the interior of the fixed block (34), and a cylinder (392) is fixedly connected to the top of the fixed plate (2).

4. The quick installation device for large-diameter ductile iron pipes according to claim 3, characterized in that: The front end of the threaded column (391) is rotatably connected to the rear end of the movable box (35), and the drive end of the cylinder (392) is fixedly connected to the adjacent side of the two movable blocks (31).

5. The quick installation device for a large-diameter ductile iron pipe according to claim 4, characterized in that: The bottom end of the moving block (31) is slidably connected to the top end of the fixed plate (2), and the adjacent sides of the two positioning plates (33) are in contact with the outside of the tube body (1).

6. The quick installation device for large-diameter ductile iron pipes according to claim 1, characterized in that: The docking mechanism (4) includes two limiting blocks (41). The two limiting blocks (41) are slidably connected to the inside of the positioning plate (33). Sliding blocks (42) are fixedly connected to the adjacent side of the two limiting blocks (41). Telescopic columns (43) are fixedly connected to the adjacent side of the two sliding blocks (42). Springs (44) are sleeved on the outside of the telescopic columns (43). Pull rods (45) are fixedly connected to the outside of the two sliding blocks (42). The positioning plate (33) has an installation groove (46) on its outside.

7. The quick installation device for a large-diameter ductile iron pipe according to claim 6, characterized in that: The two limiting blocks (41) are externally slidably connected inside the mounting groove (46), and the two ends of the spring (44) are respectively fixedly connected to the adjacent side of the two sliding blocks (42).

8. The quick installation device for a large-diameter ductile iron pipe according to claim 6, characterized in that: The positioning plate (33) has a groove on its outside, and the pull rod (45) is slidably connected to the inside of the groove.

Citation Information

Patent Citations

  • Nodular cast iron pipeline mounting device

    CN216785446U