A ductile cast iron pipe finished product lifting appliance

Abstract

The application provides a nodular cast iron pipe finished product lifting appliance, and belongs to the technical field of nodular cast iron pipe lifting equipment, which comprises a crossbeam, a lifting assembly and a controller, the crossbeam is used for connecting a lifting hook of a crown block, the lifting assembly is used for connecting the crossbeam and has two groups of telescopic parts, the telescopic parts are telescopic along the axial direction of the nodular cast iron pipe and can be inserted into the two ends of the nodular cast iron pipe, the two groups of telescopic parts are used for lifting the nodular cast iron pipe by means of the crown block after being inserted, and the spacing between the two groups of telescopic parts can be adjusted, the controller is electrically connected with the two groups of telescopic parts respectively, the telescopic parts are controlled by the controller to be inserted into or separated from the two ends of the nodular cast iron pipe, the technical problem that a special person is needed to assist in completing the operation of removing and hanging the lifting hook when the nodular cast iron pipe is lifted is solved, the lifting operation is easy to cause danger to the person, the lifting hook can be automatically removed and hung on the cast pipe, the operation efficiency is improved, the labor is reduced, and the technical effect of reducing the operation danger is achieved.

Description

Technical Field

[0001] This invention belongs to the technical field of ductile iron pipe hoisting equipment, and more specifically, relates to a hoisting tool for finished ductile iron pipes. Background Technology

[0002] Currently, the production process of ductile iron pipes requires lifting equipment, especially for the lifting and transportation of finished pipes. Lifting equipment enables the lifting, loading, and unloading of ductile iron pipes. In the production workshop, overhead cranes are commonly used for lifting ductile iron pipes. However, this requires ground personnel to assist crane operators in attaching and detaching the hooks to ensure successful lifting. This method is inefficient, requires specialized personnel, and poses operational risks. Therefore, it is necessary to research a lifting device that can be attached to an overhead crane, allowing for automatic connection and disconnection from the pipe, and automatic hook attachment and detachment without the need for specialized personnel, thus reducing the risks associated with lifting ductile iron pipes. Summary of the Invention

[0003] The purpose of this invention is to provide a lifting tool for finished ductile iron pipes, which aims to solve the technical problem that when lifting ductile iron pipes, it is necessary to have a dedicated person assist in completing operations such as attaching and detaching the hook, which can easily cause danger to personnel.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a ductile iron pipe finished product lifting tool, comprising:

[0005] The crossbeam is used to connect the hook of the overhead crane;

[0006] A lifting assembly for connecting the crossbeam has two sets of telescopic parts. These telescopic parts extend and retract axially along the ductile iron pipe and can be inserted inwards from both ends of the pipe. After insertion, the two sets of telescopic parts are used to lift the ductile iron pipe by means of an overhead crane. The distance between the two sets of telescopic parts is adjustable.

[0007] The controller is electrically connected to the two sets of telescopic parts respectively, and controls the extension and retraction of the two sets of telescopic parts to be inserted into or detached from the two ends of the ductile iron pipe.

[0008] In one possible implementation, the lifting assembly includes a support block and a housing fixedly connected to two opposite ends of the support block. The outer end of the housing has an opening. Two sets of telescopic parts are respectively disposed in the two sets of housings. The telescopic part has a telescopic end that passes through the opening when it extends or retracts. The crossbeam is hung with multiple rigid rods, which are used to connect the support block.

[0009] In one possible implementation, the telescopic part includes a hydraulic cylinder with one end fixedly connected to the inner wall of the housing, a slide rail connected to the bottom of the inner side of the housing and near the opening, and a curved support column slidably connected to the slide rail in the middle and connected to the push end of the hydraulic cylinder at its upper end. The slide rail and the housing are interconnected to form an elongated through hole parallel to the axial direction of the ductile iron pipe. The curved support column passes through the elongated through hole, and the curved support column is used to push the curved support column to insert or disengage from the ductile iron pipe by means of the telescopic movement of the hydraulic cylinder.

[0010] In one possible implementation, the curved support column is L-shaped, with its upper end connected to the top of the hydraulic cylinder pusher and its lower end having a support beam. The upper end of the support beam has an arc-shaped protrusion that matches the inner circumferential arc of the ductile iron pipe.

[0011] In one possible implementation, the upper end of the support block is connected to an electric rotary table, the upper end of which is used to connect to the lifting rod and the lower end of which is used to connect to the support block. The lifting assembly uses the rotation of the electric rotary table to adjust the lifting posture of the ductile iron pipe.

[0012] In one possible implementation, the support block includes:

[0013] The block has a mounting sleeve in the middle, and an internal gear is coaxially fitted inside the mounting sleeve.

[0014] A gear shaft passes through the mounting sleeve and meshes with the internal gear for transmission. Both ends of the gear shaft extend out of the mounting sleeve. The gear shaft's axial direction is horizontal and perpendicular to the axial direction of the ductile iron pipe. Bearings are connected to the bottom of the lifting rods. There are two lifting rods, and both ends of the gear shaft are inserted into the bearings on the two lifting rods. A motor is connected to the bottom of one of the lifting rods. The power output end of the motor is connected to one end of the gear shaft. The motor is used to drive the gear shaft to rotate, thereby driving the block to rotate and the lifting assembly to rotate, thus adjusting the angle between the axial line of the ductile iron pipe and the horizontal plane.

[0015] In one possible implementation, the controller includes a remote controller and a control panel. The control panel is located in the crane operator's cab. The remote controller is wirelessly connected to the controller. A worker on the ground holds the remote controller. Both the control panel and the remote controller are used to control the operation of the telescopic unit.

[0016] In one possible implementation, a vision inspection component is provided at the lower end of the lifting assembly. The vision inspection component is used to inspect the appearance quality of the ductile iron pipe. The vision inspection component is electrically connected to the controller, and the detected image is transmitted to the controller. The controller has a receiving module adapted to receive the information detected by the vision inspection component.

[0017] In one possible implementation, the controller has a dataset of ductile iron pipe appearance quality information and an alarm. The receiving module can compare and analyze the data to obtain the quality information of the ductile iron pipe. If the detected ductile iron pipe quality does not conform to the dataset, the receiving module instructs the alarm to issue an alarm signal.

[0018] In one possible implementation, the crossbeam is a telescopic component with a degree of freedom to extend and retract in the horizontal direction, and the height of the crossbeam is adjusted by means of an overhead crane.

[0019] The beneficial effects of the ductile iron pipe lifting device provided by this invention are as follows: Compared with the prior art, the ductile iron pipe lifting device of this invention includes a crossbeam, a lifting assembly, and a controller. The crossbeam is used to connect to the hook of the overhead crane; the lifting assembly is used to connect to the crossbeam and has two sets of telescopic parts. The telescopic parts extend and retract along the axial direction of the ductile iron pipe and can be inserted into the pipe from both ends. After the two sets of telescopic parts are inserted, they are used to lift the ductile iron pipe with the help of the overhead crane. The distance between the two sets of telescopic parts is adjustable; the controller is electrically connected to the two sets of telescopic parts respectively, and controls the extension and retraction of the two sets of telescopic parts to connect or disconnect them from the two ends of the ductile iron pipe. This solves the technical problem that when lifting ductile iron pipes, it is necessary to have a dedicated person assist in completing the hook-attaching and hook-removing operations, which can easily cause danger to personnel. This invention has the technical effect of automatically realizing the hook-attaching and hook-removing operations with the ductile iron pipe, improving operational efficiency, reducing manpower, and reducing operational hazards. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a ductile iron pipe lifting tool provided in an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the structure of a finished ductile iron pipe lifting device provided in another embodiment of the present invention;

[0023] Figure 3A side view of a lifting assembly of a ductile iron pipe lifting device provided in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the lifting assembly of a ductile iron pipe lifting tool after it is connected to the pipe, as provided in an embodiment of the present invention.

[0025] Figure 5 A schematic diagram of the structure of a finished ductile iron pipe lifting device provided in another embodiment of the present invention;

[0026] Figure 6 A schematic diagram of the lifting assembly of a ductile iron pipe lifting device after it is connected to the pipe, as provided in another embodiment of the present invention;

[0027] Figure 7 for Figure 6 Side view of the lifting component.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Crossbeam; 2. Lifting assembly; 21. Telescopic part; 211. Hydraulic cylinder; 212. Slide rail; 213. Curved support column; 214. Long strip through hole; 215. Support beam; 216. Arc-shaped protrusion; 22. Support block; 221. Block; 222. Gear shaft; 223. Mounting sleeve; 23. Housing; 3. Controller; 4. Lifting rod; 41. Bearing; 42. Motor; 5. Electric rotary table; 6. Vision inspection assembly; 61. Bracket; 62. Industrial CCD camera; 63. Bearing component. Detailed Implementation

[0030] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0031] Please refer to the following: Figures 1 to 7 The present invention provides a lifting device for finished ductile iron pipes. The lifting device includes a crossbeam 1, a lifting assembly 2, and a controller 3. The crossbeam 1 is used to connect to the hook of an overhead crane. The lifting assembly 2, connected to the crossbeam 1, has two sets of telescopic parts 21. The telescopic parts 21 extend and retract along the axial direction of the ductile iron pipe and can be inserted into the pipe from both ends. After insertion, the two sets of telescopic parts 21 are used to lift the ductile iron pipe with the aid of the overhead crane. The distance between the two sets of telescopic parts 21 is adjustable. The controller 3 is electrically connected to the two sets of telescopic parts 21 respectively, and controls the extension and retraction of the two sets of telescopic parts 21 to connect or disconnect them from the two ends of the ductile iron pipe.

[0032] This invention provides a lifting device for finished ductile iron pipes. Compared with existing technologies, the crossbeam 1 is used to connect to the hook of the overhead crane; the lifting assembly 2 is used to connect to the crossbeam 1 and has two sets of telescopic parts 21. The telescopic parts 21 extend and retract along the axial direction of the ductile iron pipe and can be inserted into the pipe from both ends. After the two sets of telescopic parts 21 are inserted, they are used to lift the ductile iron pipe with the help of the overhead crane. The distance between the two sets of telescopic parts 21 can be adjusted; the controller 3 is electrically connected to the two sets of telescopic parts 21 respectively. The controller 3 controls the extension and retraction of the two sets of telescopic parts 21 to connect or disconnect them from the two ends of the ductile iron pipe. This solves the technical problem that when lifting ductile iron pipes, special personnel are needed to assist in the operation of hooking and unhooking, which is prone to causing danger to personnel. It has the technical effect of automatically realizing the hooking and unhooking operation with the ductile iron pipe, improving operation efficiency, reducing manpower, and reducing operational hazards.

[0033] In this embodiment, the extension and retraction of two sets of telescopic parts 21 enable insertion and disengagement from the cast pipe. After insertion, it functions like a forklift, lifting the cast pipe. Once the cast pipe is hoisted to a suitable or predetermined position, the telescopic parts 21 can be reversed to move the lifting assembly 2 away from the cast pipe. This achieves automatic connection and disengagement between the lifting assembly 2 and the cast pipe. During the hoisting process, no ground personnel are required; only one crane operator can complete the automatic hoisting of the cast pipe, reducing manual labor intensity, improving hoisting efficiency, and minimizing the risks associated with hoisting operations, effectively preventing injury to personnel. The crane operator can control the two sets of telescopic parts 21 via the controller 3, which offers flexible and convenient operation. The controller 3 can be installed in the crane operator's cab. The crossbeam 1 has high structural strength, capable of bearing the weight of the cast pipe and preventing deformation. Similarly, the lifting assembly 2 has high structural strength, capable of bearing the weight of the cast pipe and effectively preventing bending deformation, thus effectively completing the hoisting operation of the cast pipe. The crane hook is not shown in the figure. The crossbeam has a connecting part that connects to the hook, which can realize the connection with the hook. Preferably, the connecting part is a hook to realize the connection between the crossbeam 1 and the hook.

[0034] In some embodiments, please refer to Figures 1 to 7The lifting assembly 2 includes a support block 22 and a housing 23 fixedly connected to the two opposite ends of the support block 22. The outer end of the housing 23 has an opening. Two sets of telescopic parts 21 are respectively disposed within the two sets of housings 23. Each telescopic part 21 has a telescopic end that passes through the opening when it extends or retracts. A crossbeam 1 is connected to multiple rigid lifting rods 4, which are used to connect to the support block 22. The housing 23 provides support, and there are two sets in total. One side of the housing 23 is fixedly connected to the side of the support block 22. The telescopic parts 21 extend or retract along the length of the support block 22 or the housing 23. In this embodiment, the length of the lifting rods 4 is not limited. The telescopic parts 21 pass through the openings, enabling clamping or disengagement of the cast pipe. The two sets of housings 23 and the support block 22 are arranged in a straight line parallel to the axial direction of the cast pipe.

[0035] In some embodiments, please refer to Figures 1 to 7 The telescopic part 21 includes a hydraulic cylinder 211 fixedly connected to the inner wall of the housing 23 at one end, a slide rail 212 connected to the bottom of the inner side of the housing 23 near the opening, and a curved support column 213 slidably connected to the slide rail 212 in the middle and connected to the pushing end of the hydraulic cylinder 211 at the upper end. The slide rail 212 and the housing 23 are interconnected to form an elongated through hole 214 parallel to the axis of the ductile iron pipe. The curved support column 213 is inserted into the elongated through hole 214. The curved support column 213 is used to push the curved support column 213 to insert or disengage from the ductile iron pipe by means of the telescopic movement of the hydraulic cylinder 211. The hydraulic cylinder 211 is connected to an oil pipe or pipeline. By controlling the telescopic movement of the hydraulic cylinder 211, the curved support column 213 can be pushed to move horizontally. The lower end of the curved support column 213 can be inserted into the inside of the ductile iron pipe. The ductile iron pipe can be lifted and transported by the crane. The curved support column 213 is inserted into the inner cavity of the casting pipe along the axial direction from one end of the casting pipe. The curved support column 213 can move back and forth in the elongated through hole 214. The bottom of the slide rail 212 and the bottom of the housing 23 are connected to form the elongated through hole 214. The curved support column 213 can be translated by pushing it with the hydraulic cylinder 211.

[0036] In some embodiments, please refer to Figures 1 to 7 The curved support column 213 is L-shaped, with the upper end connected to the hydraulic cylinder 211 pushing the top, and the lower end having a support beam 215. The upper end of the support beam 215 has an arc-shaped protrusion 216, which matches the arc shape of the inner circumference of the ductile iron pipe. The arc-shaped protrusion 216 on the support beam 215 of the curved support column 213 contacts the inner wall surface of the cast iron pipe. The arc-shaped protrusion 216 increases the contact area between the support and the cast iron pipe, preventing the cast iron pipe from shifting or moving during hoisting. The curved support column 213 has high structural strength, can resist the weight of the cast iron pipe, and can effectively resist bending and prevent deformation. The support beam 215 is set horizontally and can be inserted or withdrawn from one end of the cast iron pipe.

[0037] Because the overhead crane's hook can only move forward, backward, left, right, up, and down, and cannot rotate circumferentially in a horizontal plane, existing methods require specialized personnel to operate the hook when lifting inclined cast iron pipes. This involves deflecting or rotating the hook to connect it to the pipe. To solve this problem, and eliminate the need for specialized personnel, some embodiments are described below. Figures 1 to 7 The upper end of the support block 22 is connected to an electric rotary table 5. The upper end of the electric rotary table 5 is used to connect to the lifting rod 4, and the lower end is used to connect to the support block 22. The lifting assembly 2 uses the rotation of the electric rotary table 5 to adjust the lifting posture of the ductile iron pipe. The horizontal left-right movement of the crane is defined as the X-axis, the horizontal forward-backward movement as the Y-axis, and the vertical movement as the Z-axis. When the cast iron pipe is placed at an angle on the ground, that is, when the axial line of the cast iron pipe is between the X-axis and the Y-axis, the crane hook cannot be directly inserted into the cast iron pipe. In this case, a special person is required to operate it. However, by using the electric rotary table 5 to rotate the lifting assembly 2, the extension and retraction directions of the two telescopic columns can be made parallel to the axial direction of the cast iron pipe, so that the cast iron pipe can be lifted and transported.

[0038] Specifically, the electric rotary table 5 can rotate circumferentially in the horizontal plane, thereby adjusting the lifting posture or direction of the cast pipe. With the cooperation of the overhead crane, it can move within the X, Y and Z axes, realizing movement in multiple degrees of freedom.

[0039] In this embodiment, there are multiple lifting rods 4, and their form is not limited. As long as they can lift the lifting component 2 and withstand a certain deformation, they can meet the usage requirements.

[0040] In some embodiments, please refer to Figures 1 to 7The support block 22 includes a block body 221 and a gear shaft 222. The middle part of the block body 221 has a mounting sleeve 223, and an internal gear is coaxially mounted inside the mounting sleeve 223. The gear shaft 222 passes through the mounting sleeve 223 and meshes with the internal gear for transmission. Both ends of the gear shaft 222 extend out of the mounting sleeve 223. The axial direction of the gear shaft 222 is horizontal and perpendicular to the axial direction of the ductile iron pipe. The bottom of the lifting rod 4 is connected to a bearing 41. There are two lifting rods 4. Both ends of the gear shaft 222 are inserted into the bearings 41 on the two lifting rods 4. The bottom of one of the lifting rods 4 is connected to a motor 42. The power output end of the motor 42 is connected to one end of the gear shaft 222. The motor 42 is used to drive the gear shaft 222 to rotate, thereby driving the block body 221 to rotate and the lifting assembly 2 to rotate, thereby adjusting the angle between the axial line of the ductile iron pipe and the horizontal plane. The gear shaft 222 can be pulled out from the mounting sleeve 223 and inserted into the mounting sleeve 223. After installation, when the gear shaft 222 rotates, the mounting sleeve 223 also rotates, thereby driving the lifting assembly 2 to rotate. This allows for the connection of the cast pipe that is tilted in the vertical plane (i.e., the cast pipe axis is within the angle between the X and Z axes), thus achieving lifting. When the motor 42 drives the gear shaft 222 to rotate, the gear shaft 222 meshes with the internal gear, and the gear shaft 222 drives the support block 22 to rotate.

[0041] To achieve flexible control over the two sets of telescopic sections 21, in some embodiments, please refer to... Figure 1 As shown in Figure 7, the controller 3 includes a remote control and a control panel. The control panel is located in the crane operator's cab. The remote control is wirelessly connected to the controller 3. A worker on the ground holds the remote control. Both the control panel and the remote control are used to control the operation of the telescopic section 21. Workers can operate the controller from the ground or from the crane operator's cab to control the hoisting operation of the cast pipe. Both the remote control and the control panel utilize existing technology and can control the extension and retraction of the telescopic section 21, thereby completing the hoisting of the cast pipe.

[0042] Specifically, the wireless communication connection between the remote controller and the controller 3 can adopt existing technologies such as 4G.

[0043] To enable the simultaneous inspection of the appearance quality of cast pipes during hoisting, multiple functions and effects have been implemented. In some embodiments, please refer to... Figures 1 to 7A vision inspection component 6 is installed at the lower end of the lifting assembly 2. The vision inspection component 6 is used to inspect the appearance quality of the ductile iron pipe. The vision inspection component 6 is electrically connected to the controller 3, and the detected image is transmitted to the controller 3. The controller 3 has a receiving module suitable for receiving the information detected by the vision inspection component 6. Through this vision inspection component 6, the image information of the outer wall of the ductile iron pipe can be detected, and the quality information of the outer wall of the pipe can be viewed on the controller 3, thus enabling quality inspection during lifting. When a quality defect is detected in the ductile iron pipe, the relevant information can be immediately received on the controller 3, thus quickly identifying the pipe as a defective product.

[0044] Specifically, the vision inspection component 6 includes an industrial CCD camera 62, capable of capturing images of the appearance quality of the cast pipe. The vision inspection component 6 includes a bracket 61 connected to the lower end of the lifting component 2, on which multiple cameras are evenly distributed, enabling simultaneous image capture of the outer circumferential wall of the cast pipe.

[0045] Preferably, a bearing 63 is provided at the lower end of the lifting assembly 2, and the middle part of the bracket 61 is rotatably connected to the bearing 63. The bracket 61 can rotate circumferentially in the horizontal plane, thereby enabling image acquisition of cast pipes arranged in any direction. The receiving module on the controller 3 adopts a prior art module, which is capable of receiving detected information.

[0046] In some embodiments, please refer to Figures 1 to 7 The controller 3 contains a dataset of ductile iron pipe appearance quality information and an alarm. The receiving module can compare and analyze the data to determine the quality information of the ductile iron pipe. If the quality of the inspected ductile iron pipe does not conform to the dataset, the receiving module instructs the alarm to issue an alarm signal. This dataset is pre-set and includes multiple images of defects on the outer wall of the pipes. When the acquired image of the pipe's appearance corresponds to or matches an image in the dataset, the controller 3 considers the pipe to be defective, and the alarm sounds to alert the staff. This dataset is part of the machine vision inspection equipment or device and can input various information to perform comparative analysis of the acquired images.

[0047] In order to adjust the distance between the two booms 4, in some embodiments, please refer to Figures 1-2 The crossbeam 1 is a telescopic component, possessing the freedom to extend and retract horizontally. The height of the crossbeam 1 is adjusted using a crane. Two lifting rods 4 are connected to both ends of the crossbeam 1. By adjusting the length of the crossbeam 1, the distance between the two lifting rods 4 can be adjusted accordingly. When lifting casting pipes of different lengths, this allows the lifting assembly 2 to stably lift the casting pipes. In this embodiment, the structural form of the crossbeam 1 is not limited, as long as it enables telescopic movement; for example, a multi-section telescopic beam structure from existing technologies can be used. Figure 5As shown, the rod 4 can also be configured in a U-shape, with its upper end connected to the crossbeam 1 via a suspension rope.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lifting device for finished ductile iron pipes, characterized in that, include: The crossbeam is used to connect the hook of the overhead crane; A lifting assembly for connecting the crossbeam has two sets of telescopic parts. These telescopic parts extend and retract axially along the ductile iron pipe and can be inserted inwards from both ends of the pipe. After insertion, the two sets of telescopic parts are used to lift the ductile iron pipe by means of an overhead crane. The distance between the two sets of telescopic parts is adjustable. The controller is electrically connected to the two sets of telescopic parts respectively, and controls the extension and retraction of the two sets of telescopic parts to be inserted into or detached from the two ends of the ductile iron pipe. The lifting assembly includes a support block and a housing that is fixedly connected to two opposite ends of the support block. The outer end of the housing has an opening. Two sets of telescopic parts are respectively arranged in the two sets of housings. The telescopic part has a telescopic end and the telescopic end passes through the opening when it extends or retracts. The crossbeam is hung with multiple rigid lifting rods, and the lifting rods are used to connect the support block. The telescopic part includes a hydraulic cylinder fixedly connected to the inner wall of the housing at one end, a slide rail connected to the bottom of the inner side of the housing and near the opening, and a curved support column slidably connected to the slide rail in the middle and connected to the pushing end of the hydraulic cylinder at the upper end. The slide rail and the housing are interconnected to form an elongated through hole parallel to the axial direction of the ductile iron pipe. The curved support column is inserted into the elongated through hole. The curved support column is used to push the curved support column to insert or disengage from the ductile iron pipe by means of the telescopic movement of the hydraulic cylinder. The upper end of the support block is connected to an electric rotary table. The upper end of the electric rotary table is used to connect the lifting rod, and the lower end is used to connect the support block. The lifting assembly uses the rotation of the electric rotary table to adjust the lifting posture of the ductile iron pipe. A vision inspection component is provided at the lower end of the lifting assembly. The vision inspection component is used to inspect the appearance quality of the ductile iron pipe. The vision inspection component is electrically connected to the controller, and the detected image is transmitted to the controller. The controller has a receiving module suitable for receiving the information detected by the vision inspection component.

2. The ductile iron pipe lifting tool as described in claim 1, characterized in that, The curved support column is L-shaped, with the upper end connected to the top of the hydraulic cylinder pusher and the lower end having a support beam. The upper end of the support beam has an arc-shaped protrusion that matches the inner circumference arc of the ductile iron pipe.

3. The ductile iron pipe lifting tool as described in claim 1, characterized in that, The support block includes: The block has a mounting sleeve in the middle, and an internal gear is coaxially fitted inside the mounting sleeve. A gear shaft passes through the mounting sleeve and meshes with the internal gear for transmission. Both ends of the gear shaft extend out of the mounting sleeve. The gear shaft's axial direction is horizontal and perpendicular to the axial direction of the ductile iron pipe. Bearings are connected to the bottom of the lifting rods. There are two lifting rods, and both ends of the gear shaft are inserted into the bearings on the two lifting rods. A motor is connected to the bottom of one of the lifting rods. The power output end of the motor is connected to one end of the gear shaft. The motor is used to drive the gear shaft to rotate, thereby driving the block to rotate and the lifting assembly to rotate, thus adjusting the angle between the axial line of the ductile iron pipe and the horizontal plane.

4. The ductile iron pipe lifting tool as described in claim 1, characterized in that, The controller includes a remote controller and a control panel. The control panel is located in the crane operator's cab. The remote controller is wirelessly connected to the controller. A worker on the ground holds the remote controller. Both the control panel and the remote controller are used to control the operation of the telescopic section.

5. A lifting device for finished ductile iron pipes as described in claim 1, characterized in that, The controller has a dataset of ductile iron pipe appearance quality information and an alarm. The receiving module can compare and analyze to obtain the quality information of the ductile iron pipe. If the detected ductile iron pipe quality does not meet the dataset, the receiving module instructs the alarm to issue an alarm signal.

6. A lifting device for finished ductile iron pipes as described in claim 1, characterized in that, The crossbeam is a telescopic component, with the freedom to extend and retract in the horizontal direction. The height of the crossbeam is adjusted by a crane.

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