Nodular cast iron pipe mounting equipment

Abstract

The utility model discloses nodular cast iron pipe installation equipment, and relates to the technical field of pipeline installation. Comprising a disc frame, walking wheels are arranged on the disc frame and used for supporting the disc frame to walk in a nodular cast iron pipe, and the disc frame and the nodular cast iron pipe are located on the same axis; the coaxial supporting and fixing mechanism is arranged at one end of the disc frame and used for supporting the disc frame in the nodular cast iron pipe so that the disc frame and the nodular cast iron pipe can be located on the same axis and fixed. The whole device is installed at the butt-joint installation position of the two nodular cast iron pipes for use, precise positioning between the two nodular cast iron pipes is achieved in combination with various auxiliary alignment structures such as the industrial camera, the laser tracker and the front-end detection mechanism, the problem that manual alignment operation is not high in precision is solved, and the work efficiency is improved. The alignment efficiency and precision during installation of the two nodular cast iron pipes are improved, and the butt joint stability of connectors is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of pipeline installation technology, and in particular to a ductile iron pipe installation device. Background Technology

[0002] In the construction of modern infrastructure, cities are developing rapidly, and the demand for various types of infrastructure is constantly rising. Ductile iron pipes, with their excellent properties such as high strength, corrosion resistance, and impact resistance, are widely used in key areas such as urban water supply and drainage. However, during their installation and connection, a series of challenging problems stand like huge rocks in the road of engineering construction, urgently needing to be solved.

[0003] In existing technologies, especially for the installation of large-diameter ductile iron pipes, manual operation is often relied upon. The processes of hoisting, positioning, and connection are labor-intensive and have limited precision. Due to the large diameter and heavy weight of the pipes, traditional hoisting and positioning methods are not only inefficient and time-consuming, but also prone to errors, easily leading to deviations in pipe installation positions. This makes it difficult to guarantee the long-term sealing and stability of the joints. Once leakage occurs, sewage may leak into the surrounding soil and water bodies, causing environmental pollution problems. It may also damage the foundations of nearby buildings, posing safety hazards.

[0004] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop a ductile iron pipe installation device. Utility Model Content

[0005] The purpose of this invention is to provide a ductile iron pipe installation device that can assist in the precise positioning of the docking end for docking connection during the installation of large-diameter ductile iron pipes.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model discloses a ductile iron pipe installation device, comprising:

[0008] A disc frame is provided with wheels to support the disc frame as it moves inside the ductile iron pipe. The disc frame and the ductile iron pipe are located on the same axis.

[0009] A coaxial support and fixing mechanism is provided at one end of the disc frame to support the disc frame inside the ductile iron pipe so that the disc frame and the ductile iron pipe are fixed on the same axis.

[0010] A front-end protective frame structure is disposed on the disc frame at one end opposite to the coaxial support and fixing mechanism.

[0011] An instrument assembly table is set on the disc frame, opposite to one end of the coaxial support and fixing mechanism and located inside the front protective frame structure. Multiple industrial cameras and multiple laser trackers are set on the instrument assembly table.

[0012] And a front-end detection mechanism, which is set on the front-end protective frame structure opposite to one end of the disc frame to measure the concentricity of two connected ductile iron pipes.

[0013] Furthermore, the traveling wheels are servo hub motors with wheels, and the traveling wheels are multiple ones evenly distributed circumferentially on the circumferential surface of the disc frame.

[0014] Furthermore, the walking wheels are arranged in two rows along the axis of the disc frame.

[0015] Furthermore, the coaxial support fixing mechanism includes a swing rod, which is a plurality of swing rods evenly distributed in the circumferential direction on the end face of the disc frame. One end of the swing rod is hinged to the end face of the disc frame, and the other end is hinged to a pressure plate that abuts against the inner wall of the ductile iron pipe.

[0016] A drive mechanism is provided on the disc frame to synchronously drive multiple swing rods to swing outward so that the pressure plate presses against the inner wall of the ductile iron pipe.

[0017] Furthermore, the driving mechanism includes an annular connector, which is coaxially arranged with the disc frame. Each swing rod is connected to the annular connector with a push rod. Both ends of the push rod are hinged to the annular connector and the swing rod. Multiple guide rods are provided on the end face of the disc frame to guide the axial movement of the annular connector. The multiple guide rods are arranged parallel to each other. The annular connector has guide holes into which the multiple guide rods extend one by one, and the guide rods slide within the guide holes.

[0018] A hydraulic cylinder is fixedly mounted on the disc frame, and the telescopic end of the hydraulic cylinder is fixedly connected to the annular connector.

[0019] Furthermore, the front-end protective frame structure includes a front-end top plate, and multiple arc-shaped ribs are connected between the front-end top plate and one end face of the disc frame opposite to the coaxial support and fixing mechanism. The multiple arc-shaped ribs are evenly distributed circumferentially, and the front-end top plate and the disc frame are coaxially arranged.

[0020] Furthermore, the multiple industrial cameras and the multiple laser trackers are evenly distributed in a circumferentially spaced manner.

[0021] Furthermore, the front-end detection mechanism includes a support rod vertically connected to the front-end top plate, and a support disk is connected to the end of the support rod. The support rod and the support disk are coaxially arranged relative to the disk frame. Multiple laser rangefinders are arranged on the circumferential surface of the support disk, and the multiple laser rangefinders are fixed on the circumferential surface of the support disk in a circumferentially evenly distributed manner.

[0022] This utility model has the following beneficial effects.

[0023] The overall device of this utility model is installed at the joint of two ductile iron pipes. It combines an industrial camera, a laser tracker, and a front-end detection mechanism to achieve precise positioning between the two ductile iron pipes. This avoids the problem of low accuracy in manual alignment operations, improves the alignment efficiency and accuracy when installing two ductile iron pipes, and ensures the stability of the joint. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0025] Figure 1 A schematic diagram of the structure of a ductile iron pipe installation device provided for an embodiment of this utility model;

[0026] Figure 2 A schematic diagram illustrating the usage state of a ductile iron pipe installation device when two ductile iron pipes are joined, provided for an embodiment of this utility model;

[0027] Figure 3 A front view of the side where the front top plate of a ductile iron pipe installation device is located, provided for an embodiment of this utility model;

[0028] Figure 4 This is a front view of the side where the coaxial support and fixing mechanism of a ductile iron pipe installation device is located, as provided in an embodiment of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Disc frame; 2. Wheels; 3. Instrument assembly table; 4. Industrial camera; 5. Laser tracker; 6. Swing rod; 7. Pressure plate; 8. Ring connector; 9. Push rod; 10. Guide rod; 11. Guide hole; 12. Hydraulic cylinder; 13. Front top plate; 14. Arc-shaped rib; 15. Support rod; 16. Support disc; 17. Laser rangefinder. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, a further detailed description of this utility model will be provided below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] See Figures 1 to 4 As shown;

[0033] This embodiment discloses a ductile iron pipe installation device, including:

[0034] The disc frame 1 is equipped with wheels 2 to support its movement inside the ductile iron pipe. With the support of the wheels 2, the disc frame 1 and the ductile iron pipe are located on the same axis, which facilitates the subsequent through-center positioning and fixing of the disc frame 1 inside the ductile iron pipe and the docking positioning operation of the two ductile iron pipes to be connected. This installation equipment mainly assists in precise alignment before the two ductile iron pipes are connected, so as to ensure the stability of the seal after the two ductile iron pipes are connected. It is a positioning device in the installation process of ductile iron pipe. The actual delivery of the ductile iron pipe and the force connection operation need to be carried out by other hoisting equipment.

[0035] A coaxial support and fixing mechanism is set at one end of the disc frame 1 to support the disc frame 1 inside the ductile iron pipe so that the disc frame 1 and the ductile iron pipe are fixed on the same axis, so that the equipment and the ductile iron pipe are concentrically fixed, so as to continue to carry out subsequent precise alignment operations.

[0036] The front protective frame structure is set on the disc frame 1 at one end opposite to the coaxial support and fixing mechanism. It is used to align with the other ductile iron pipe that is about to be hoisted over, and plays a protective role at the front end.

[0037] The instrument assembly platform 3 is set on the disc frame 1, opposite to one end of the coaxial support and fixing mechanism, and located inside the front protective frame structure. It is mainly used to install testing instruments, control systems, etc., and is effectively protected by the front protective frame structure. Multiple industrial cameras 4 and multiple laser trackers 5 are set on the instrument assembly platform 3. The end face photos of the ductile iron pipes captured by the industrial cameras 4 are used for technical analysis in conjunction with relevant image recognition technology to assist in the alignment operation of the ductile iron pipes. At the same time, multiple laser trackers 5 simultaneously measure straightness, that is, to detect whether the two ductile iron pipes to be connected are on the same axis to determine the accuracy of the connection. Similarly, the relevant control system automatically determines the position and attitude of the installed equipment based on the feedback information. The relevant control system and image recognition technology are common knowledge well known to those skilled in the art, and will not be elaborated here.

[0038] The front-end detection mechanism is set on the front-end protective frame structure opposite to one end of the disc frame 1 to measure the concentricity of the two ductile iron pipes that are connected. The front-end detection mechanism can further determine whether the connecting ends of the two ductile iron pipes are in the concentric position, and adjust the position according to the detection results to achieve precise connection of the two ductile iron pipes.

[0039] Furthermore, the traveling wheels 2 are servo hub motors with wheels, capable of moving autonomously after being powered on, thereby driving the disc frame 1 and the entire device to move inside the ductile iron pipe. Multiple traveling wheels 2 are evenly distributed circumferentially on the circumferential surface of the disc frame 1, allowing the size of the disc frame 1 to be adjusted according to the pipe diameter and ensuring that all traveling wheels 2 can roll on the inner wall of the ductile iron pipe, guaranteeing the concentric and coaxial position of the disc frame 1 and the ductile iron pipe. This equipment is designed and used according to the diameter of the ductile iron pipe.

[0040] Furthermore, the traveling wheels 2 are arranged in double rows along the axis of the disc frame 1, so that the traveling wheels 2 can support and maintain balance at both ends of the disc frame 1, thereby driving the equipment to move stably inside the ductile iron pipe. After the two pipes are connected, the equipment is controlled to move along the ductile iron pipe to the port position to wait for the installation of the next section of ductile iron pipe.

[0041] Furthermore, the coaxial support fixing mechanism includes a swing rod 6, which consists of multiple swing rods evenly distributed circumferentially on the end face of the disc frame 1. One end of the swing rod 6 is hinged to the end face of the disc frame 1, and the other end is hinged to a pressure plate 7 that abuts against the inner wall of the ductile iron pipe. The pressure plate 7 is hinged to the swing rod 6. When the swing rod 6 swings, the pressure plate 7 can rotate flexibly to fit against the inner wall of the ductile iron pipe. However, it is necessary to limit the swing angle of the pressure plate 7 relative to the swing rod 6 so that the pressure surface of the pressure plate 7 always faces the adjacent inner wall of the ductile iron pipe, such as the limiting structure at the hinge position.

[0042] A drive mechanism is provided on the disc frame 1 to synchronously drive multiple swing rods 6 to swing outward so that the pressure plate 7 presses against the inner wall of the ductile iron pipe. Under the drive of the drive mechanism, multiple swing rods 6 swing and multiple pressure plates 7 press against the inner wall of the ductile iron pipe in a synchronous manner, so as to accurately ensure the concentricity of the device when it is fixed inside the ductile iron pipe, so that the device can be fixed in position before the measurement of related instruments is carried out.

[0043] Furthermore, the drive mechanism includes an annular connector 8, which is coaxially arranged with the disc frame 1. Each swing rod 6 is connected to the annular connector 8 with a push rod 9. Both ends of the push rod 9 are hinged to the annular connector 8 and the swing rod 6. Multiple guide rods 10 are provided on the end face of the disc frame 1 to guide the axial movement of the annular connector 8. The multiple guide rods 10 are arranged parallel to each other. The annular connector 8 is provided with guide holes 11 that allow the multiple guide rods 10 to extend into one by one. The guide rods 10 slide in the guide holes 11.

[0044] A hydraulic cylinder 12 is fixedly installed on the disc frame 1, and the telescopic end of the hydraulic cylinder 12 is fixedly connected to the annular connector 8.

[0045] Specifically, driven by the hydraulic cylinder 12, the guide rod 10 slides in the guide hole 11 to guide the movement direction of the annular connector 8, thereby pushing the annular connector 8 to move axially relative to the disc frame 1, and simultaneously pushing multiple swing rods 6 to swing through the push rod 9, so as to complete the driving action of the coaxial support fixing mechanism to fix the equipment inside the ductile iron pipe.

[0046] Furthermore, the front-end protective frame structure includes a front-end top plate 13. Multiple arc-shaped ribs 14 are connected between the front-end top plate 13 and one end face of the coaxial support and fixing mechanism on the disc frame 1. The multiple arc-shaped ribs 14 are evenly distributed circumferentially. The front-end top plate 13 and the disc frame 1 are coaxially arranged so that the front-end top plate 13 and the multiple arc-shaped ribs 14 form a protective frame at the front end of the disc frame 1 to protect the multiple industrial cameras 4 and multiple laser trackers 5.

[0047] Furthermore, multiple industrial cameras 4 and multiple laser trackers 5 are evenly distributed in a circumferentially spaced manner, so that multiple industrial cameras 4 and multiple laser trackers 5 can perform position detection on the ductile iron pipe to be aligned at multiple positions, so as to make the detection more accurate and comprehensive, and the distribution position must avoid the front top plate 13 and the arc-shaped rib plate 14.

[0048] Furthermore, the front-end detection mechanism includes a support rod 15 vertically connected to the front-end top plate 13. A support disk 16 is connected to the end of the support rod 15. The support rod 15 and the support disk 16 are coaxially arranged relative to the disk frame 1. Multiple laser rangefinders 17 are mounted on the circumferential surface of the support disk 16, and are evenly distributed circumferentially. With the support of the support rod 15 and the support disk 16, the laser rangefinders 17 reach the axial distance of the ductile iron pipes at equal distances. Therefore, when measuring distances outwards, if the two ductile iron pipes are concentric, the measurement structure is identical; otherwise, the alignment is unsuccessful, and the docking ports of the two ductile iron pipes are not concentric or coaxial. Position adjustment is then performed based on the measurement deviations of the laser rangefinders 17 in each direction. Specific adjustment operations are performed by moving and aligning the ductile iron pipes using other equipment such as hoisting devices to achieve precise alignment and docking installation.

[0049] In the above technical solution, the ductile iron pipe installation equipment provided by this utility model has the following features:

[0050] Beneficial effects:

[0051] The overall device of this utility model is installed at the joint of two ductile iron pipes. It combines an industrial camera, a laser tracker, and a front-end detection mechanism to achieve precise positioning between the two ductile iron pipes. This avoids the problem of low accuracy in manual alignment operations, improves the alignment efficiency and accuracy when installing two ductile iron pipes, and ensures the stability of the joint.

[0052] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A ductile iron pipe installation device, characterized in that, include: A disc frame (1) is provided with wheels (2) to support the disc frame (1) to move inside the ductile iron pipe. The disc frame (1) and the ductile iron pipe are located on the same axis. A coaxial support and fixing mechanism is provided at one end of the disc frame (1) to support the disc frame (1) inside the ductile iron pipe so that the disc frame (1) and the ductile iron pipe are fixed on the same axis. A front-end protective frame structure is disposed on the disc frame (1) at one end opposite to the coaxial support and fixing mechanism; An instrument assembly table (3) is set on the disc frame (1) opposite to one end of the coaxial support and fixing mechanism and located inside the front protective frame structure. Multiple industrial cameras (4) and multiple laser trackers (5) are set on the instrument assembly table (3). And a front-end detection mechanism, which is set on the front-end protective frame structure opposite to one end of the disc frame (1) to measure the concentricity of two ductile iron pipes that are connected to each other.

2. The ductile iron pipe installation equipment according to claim 1, characterized in that, The walking wheel (2) is a servo hub motor with wheels. The walking wheel (2) is a plurality of wheels evenly distributed in the circumference on the circumferential surface of the disc frame (1).

3. The ductile iron pipe installation equipment according to claim 2, characterized in that, The walking wheels (2) are arranged in two rows along the axis of the disc frame (1).

4. The ductile iron pipe installation equipment according to claim 1, characterized in that, The coaxial support fixing mechanism includes a swing rod (6), which is a plurality of swing rods (6) evenly distributed in the circumferential direction on the end face of the disc frame (1). One end of the swing rod (6) is hinged to the end face of the disc frame (1), and the other end is hinged to a pressure plate (7) that abuts against the inner wall of the ductile iron pipe. A drive mechanism is provided on the disc frame (1) to synchronously drive multiple swing rods (6) to swing outward so that the pressure plate (7) presses against the inner wall of the ductile iron pipe.

5. The ductile iron pipe installation equipment according to claim 4, characterized in that, The driving mechanism includes an annular connector (8), which is coaxially arranged with the disc frame (1). Each swing rod (6) is connected to the annular connector (8) with a push rod (9). Both ends of the push rod (9) are hinged to the annular connector (8) and the swing rod (6). Multiple guide rods (10) are provided on the end face of the disc frame (1) to guide the axial movement of the annular connector (8). The multiple guide rods (10) are arranged parallel to each other. The annular connector (8) has guide holes (11) that allow the multiple guide rods (10) to extend into one by one. The guide rods (10) slide in the guide holes (11). A hydraulic cylinder (12) is fixedly installed on the disc frame (1), and the telescopic end of the hydraulic cylinder (12) is fixedly connected to the annular connector (8).

6. The ductile iron pipe installation equipment according to claim 1, characterized in that, The front-end protective frame structure includes a front-end top plate (13), and a plurality of arc-shaped ribs (14) are connected between the front-end top plate (13) and one end face of the disc frame (1) opposite to the coaxial support and fixing mechanism. The plurality of arc-shaped ribs (14) are evenly distributed in the circumferential direction, and the front-end top plate (13) and the disc frame (1) are coaxially arranged.

7. The ductile iron pipe installation equipment according to claim 1, characterized in that, The multiple industrial cameras (4) and the multiple laser trackers (5) are evenly distributed in a circumferentially spaced manner.

8. The ductile iron pipe installation equipment according to claim 6, characterized in that, The front-end detection mechanism includes a support rod (15) vertically connected to the front-end top plate (13). The end of the support rod (15) is connected to a support disk (16). The support rod (15) and the support disk (16) are coaxially arranged relative to the disk frame (1). Multiple laser rangefinders (17) are arranged on the circumferential surface of the support disk (16). The multiple laser rangefinders (17) are evenly distributed circumferentially and fixed on the circumferential surface of the support disk (16).

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