Auxiliary equipment for installing large-diameter pipeline

Abstract

The utility model discloses auxiliary equipment for installing a large-diameter pipeline, which belongs to the technical field of pipeline construction and comprises a jacking pipe frame and a plurality of auxiliary plug connectors. The jacking pipe frame comprises a plurality of jacking rods. The auxiliary plug connectors are arranged at the ends of the corresponding ejector rods, detection parts capable of deforming are arranged on the auxiliary plug connectors, and strain patches are arranged on the detection parts. A plurality of jacking rods of the jacking pipe frame provide multidirectional supporting force for the auxiliary plug connector on the inner wall of the butt joint pipeline, the auxiliary plug connector deforms when making contact with the bearing pipeline, deformation of a detection part on the auxiliary plug connector is monitored by the strain patch in real time, and the stress state is fed back. And the eccentric value of the butt-joint pipeline and the bearing pipeline can be judged according to the stress state fed back by the auxiliary plug connector in each direction. According to the equipment, dynamic mechanical monitoring during pipeline butt joint is achieved, the butt joint state of the two pipelines is visually displayed, the butt joint adjustment precision is improved, local stress concentration of the two pipelines during butt joint is avoided, and dependence on manual experience is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline construction technology, specifically an auxiliary device for the installation of large-diameter pipelines. Background Technology

[0002] With the rapid development of energy transmission, water conservancy projects, and urban pipeline network construction, the application of large-diameter pipelines is becoming increasingly widespread. These pipelines play a core role in urban water supply, energy transmission pipelines, and large industrial pipeline networks, and the quality of their connection construction directly affects the system's sealing performance, structural stability, and service life.

[0003] Traditional pipeline connection construction often employs heavy lifting equipment combined with manual adjustments. Coarse positioning of the pipeline is achieved using gantry cranes, hydraulic jacks, and other similar instruments, followed by fine-tuning by construction workers using pry bars, chain hoists, and other tools. However, large-diameter pipelines, due to their significant weight and inertia, are easily affected by wind and crane vibrations during the lifting and connection process, resulting in low connection accuracy, poor construction efficiency, and susceptibility to collision damage to the pipe joint structure. Furthermore, using a single gantry crane or crawler crane for operation, relying on manual visual measurement and adjustment of the pipe section's posture, makes aligning the pipe joint's center axis extremely difficult.

[0004] Patent CN205504202U discloses an auxiliary installation device for large-diameter socket pipes, including a target pipe support unit, a ruler pipe support unit, a camera pipe support unit, and a display terminal. The target pipe support unit is placed inside the pipe socket, while the ruler pipe support unit and the camera pipe support unit are placed inside the spigot of the pipe to be installed, with the ruler pipe support unit on the outside and the camera pipe support unit on the inside, separated by a certain distance. The display terminal is located in the crane cab, allowing the operator to directly see the pipe connection status in the trench. This device visually displays the pipe connection status to the operator through image acquisition and ultrasonic ranging. However, the device has many components, a complex installation process, and the camera's image acquisition inside the pipe requires high levels of ambient light and cleanliness. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary device for the installation of large-diameter pipelines, so as to solve the problems mentioned in the prior art.

[0006] An auxiliary device for installing large-diameter pipes is provided, comprising:

[0007] A jacking frame, which includes multiple jacking rods;

[0008] Multiple auxiliary connectors are disposed at the ends of corresponding push rods. Each auxiliary connector has a deformation detection part and a strain gauge is disposed on the detection part.

[0009] Furthermore, the auxiliary connector is sequentially formed with a pressing part, a detection part, and a contact part, and the pressing part cooperates with the end of the push rod.

[0010] The separate design of the clamping section, detection section, and contact section allows for modularization of each function. The clamping section ensures stable contact between the push rod and the pipeline, the detection section focuses on deformation sensing, and the contact section transmits the eccentric displacement of the pipeline to the deformation section.

[0011] Furthermore, the contact portion is an arc-shaped plate structure that extends radially outward and then inward.

[0012] The arc-shaped structure of the contact part can come into contact with the inner wall of the pipe to be connected during the movement, and is forced to move inward under the interference of the inner wall of the pipe to be connected, thus forcing the detection part to deform.

[0013] Furthermore, a flexible pad is provided on the side of the clamping part away from the top rod.

[0014] The flexible pad can disperse the pressure applied to the inner wall of the pipe by the clamping part, and avoid local stress concentration that could cause the inner wall of the pipe to collapse.

[0015] Furthermore, the surface of the flexible pad has multiple ratchet teeth formed along its length.

[0016] After the flexible pad comes into contact with and is compressed against the inner wall of the pipe, the edge of the pipe is restrained by ratchet teeth, enhancing the anti-slip capability of the clamping part. When friction is generated between the contact part and the inner wall of the pipe to be connected, the risk of slippage of the clamping part is reduced.

[0017] Furthermore, at least four push rods are provided.

[0018] At least four push rods are distributed circumferentially, forming a multi-directional detection system. Stress feedback from at least four directions creates an intuitive dual-axis distance coordinate system, reducing the difficulty of adjustment for operators.

[0019] Furthermore, the top rod is a telescopic rod.

[0020] The telescopic rod can adapt to the installation requirements of pipes with different inner diameters and provides an adjustable base for the clamping force between the auxiliary connector and the inner wall of the pipe.

[0021] Furthermore, the jacking frame also includes an integrated kit on which multiple jacking rods are mounted.

[0022] The integrated kit combines multiple push rods into one unit, reducing the complexity of adjusting the position of each push rod relative to the pipe individually.

[0023] Furthermore, the integrated kit is equipped with a laser line marker.

[0024] Laser line markers are used to ensure the perpendicularity of the pipeline's central axis to the integrated kit's reference plane, thereby ensuring the uniformity of deformation of different upward detection parts under idealized docking scenarios, and thus ensuring the consistency of pipeline adjustment displacement and stress feedback data.

[0025] Furthermore, the integrated kit includes at least one actuator cylinder, with two push rods serving as the two output ends of the actuator cylinder.

[0026] The two output push rods of the actuator cylinder have synchronous extension and retraction, so that after the two push rods cooperate with the inner wall of the pipe, the integrated kit is located in the central area of ​​the pipe, and the initial positioning difficulty of the integrated kit is reduced by the automatic drive of the actuator cylinder.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] Multiple jacking rods of the lifting pipe rack provide multi-directional support to the auxiliary connector on the inner wall of the connecting pipe. When the auxiliary connector contacts the receiving pipe, it deforms. The deformation of the detection part on the auxiliary connector is monitored in real time by strain gauges, providing feedback on the stress state. The eccentricity between the connecting and receiving pipes can be determined by the stress state feedback from the auxiliary connector in each direction. This equipment achieves dynamic mechanical monitoring during pipe connection, intuitively displaying the state of the two pipes during connection, improving the accuracy of connection adjustment, avoiding localized stress concentration between the two pipes during connection, and reducing reliance on manual experience. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this drawing or the prior art, 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 this drawing. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0030] Figure 1 A diagram showing the usage status of auxiliary equipment used for the installation of large-diameter pipelines;

[0031] Figure 2 A schematic diagram of the overall structure of auxiliary equipment used for the installation of large-diameter pipelines;

[0032] Figure 3 A schematic diagram of the structure of the auxiliary connector provided by this utility model.

[0033] In the diagram: 1. Lifting pipe rack; 11. Lifting rod; 12. Integrated kit; 121. Laser line marker; 122. Actuating cylinder; 2. Auxiliary connector; 21. Clamping part; 22. Detection part; 23. Contact part; 24. Flexible pad; 3. Strain gauge. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0035] Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0036] However, there may be instances where unnecessary detailed descriptions are omitted. For example, detailed descriptions of well-known matters or repetitive descriptions of essentially the same structures may be omitted. This is to avoid unnecessarily lengthy descriptions and to facilitate understanding by those skilled in the art. Furthermore, the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand this application and are not intended to limit the subject matter of the claims.

[0037] Please see Figure 1-2 As shown in the embodiment of this utility model, an auxiliary device for installing large-diameter pipes includes a pipe jacking frame 1 and multiple auxiliary connectors 2. The pipe jacking frame 1 includes multiple jacking rods 11. Multiple auxiliary connectors 2 are disposed at the ends of corresponding jacking rods 11, and each auxiliary connector 2 has a deformation detection part 22, on which a strain gauge 3 is disposed.

[0038] Multiple jacking rods 11 of the lifting pipe rack 1 contact the inner wall of the pipe through corresponding auxiliary connectors 2, applying multi-directional support force in the circumferential direction of the pipe. When two pipes are connected, the auxiliary connectors 2 contact the inner wall of the pipe and deform. The strain gauges 3 on the detection unit 22 sense the stress change during the deformation of the detection unit 22 and feed back the stress change values ​​in each direction. The deviation of the stress values ​​in each direction is converted into the deviation of the alignment distance between the pipes, thus providing intuitive data support for pipe adjustment. By judging the pipe eccentricity value through deformation and stress data, the adjustment direction is guided in real time, avoiding errors from manual visual inspection and improving docking accuracy and efficiency.

[0039] Furthermore, after initial positioning of the two pipes is achieved through the auxiliary connector 2, the limiting effect of the auxiliary connector 2 enhances the stability of the docking pipes and prevents pipe swaying from affecting docking accuracy. The auxiliary connector 2 also has a certain docking guidance effect, guiding the pipes to shift in the alignment direction and eliminating pipe breakage caused by excessive stress due to pipe collision.

[0040] It should be noted that the connecting pipes are divided into pre-assembled receiving pipes and connecting pipes in a hoisted state. The auxiliary equipment provided by this utility model can be installed on either the receiving pipe or the connecting pipe, and is not limited here. For ease of description, the auxiliary equipment is used in conjunction with the connecting pipe in the following embodiments.

[0041] Specifically, please refer to Figure 3 As shown, the auxiliary connector 2 is sequentially formed with a clamping part 21, a detection part 22, and a contact part 23. The clamping part 21 is clamped and fixed to the inner wall of the connecting pipe by the end of the push rod 11; the contact part 23 contacts the inner wall of the receiving pipe and transmits the displacement; the detection part 22 deforms due to the displacement of the contact part 23, and the deformation effect is sensed by the strain gauge 3 and the stress value is output.

[0042] In one specific embodiment, the strain gauge 3 is connected to an external system, and the stress value is transmitted to the external system and displayed to the operator on a screen.

[0043] Furthermore, the contact portion 23 is a radially extending arc-shaped plate structure that first extends outward and then inward. Specifically, the outer diameter of the arc-shaped plate's end is smaller than the inner diameter of the receiving pipe, while the outer diameter of the radially expanding portion of the arc-shaped plate is larger than the inner diameter of the receiving pipe. When the connecting pipe approaches the receiving pipe, the front end of the contact portion 23 avoids the pipe opening, allowing the arc-shaped outer wall of the contact portion 23 to smoothly contact the edge of the pipe opening. During continuous advancement, interference occurs between the arc-shaped outer wall and the pipe opening, forcing the detection portion 22 to deform. The outer diameter of the root portion where the arc-shaped plate transitions to the detection portion 22 is less than or equal to the inner diameter of the receiving pipe, thus preventing interference with the connection of the two pipes.

[0044] In a further enhancement, the eccentric displacement between the pipes is amplified by the arc-shaped structure of the contact part 23 and transmitted to the detection part 22, thereby improving the detection resolution of the strain patch 3.

[0045] Furthermore, a flexible pad 24 is provided on the side of the clamping part 21 away from the push rod 11. The flexible pad 24 is placed between the clamping part 21 and the inner wall of the pipe. After being compressed, it undergoes elastic deformation to disperse the local pressure applied by the push rod 11. The flexible pad 24 transforms the concentrated load into a distributed load, preventing the inner wall of the pipe from being crushed.

[0046] Furthermore, the surface of the flexible pad 24 has multiple ratchet teeth formed along its length. When compressed, these ratchet teeth embed into the inner wall of the pipe, forming a "barbed" engagement. This enhances the engagement effect between the clamping part 21 and the inner wall of the pipe.

[0047] In one specific embodiment, the flexible pad 24 on the clamping part 21 partially contacts the inner wall of the pipe and partially exists on the outside of the pipe, so that the surface with ratchet teeth contacts the end face of the pipe opening to form a mechanical limit. The limiting ratchet teeth provide axial locking force to prevent the clamping part 21 from retracting under the friction of the contact part 23.

[0048] In one specific embodiment, the ratchet forms a scale indication on the flexible pad 24, and the number of ratchets that engage with each clamping part 21 in the circumferential direction of the pipe opening is the same. According to the scale indication of the ratchet, the amount of engagement between each clamping part 21 and the inner wall of the pipe is forced to be the same, thereby ensuring that the reference plane of the lifting pipe rack 1 is parallel to the radial plane of the pipe.

[0049] Please see Figure 2 As shown, at least four push rods 11 are provided, evenly distributed along the circumference of the pipe to form an orthogonal support system, which detects stress data in four directions. An X / Y axis offset model is constructed using the four-axis data, allowing operators to directly determine horizontal and vertical deviations.

[0050] The top rod 11 is a telescopic rod, which has a fixed sleeve and a movable rod. A snap fastener assembly is provided between the fixed sleeve and the movable rod to limit the extension length of the movable rod. The telescopic function of the top rod 11 enables flexible matching of auxiliary equipment with pipe docking conditions of different pipe diameters. The clamping force between the clamping part 21 and the inner wall of the pipe can also be achieved by telescopically extending the top rod 11.

[0051] Specifically, the jacking frame 1 also includes an integrated kit 12, on which multiple jacking rods 11 are mounted. One end of each jacking rod 11 is fixed within the integrated kit 12, while the other end serves as a movable end to drive the auxiliary connector 2. The integrated kit 12 acts as a mounting base for the jacking rods 11, and can coordinate the synchronous movement of multiple jacking rods 11 through a unified module. For example, in parallel alignment operations with the radial plane of the pipeline, the integrated kit 12 enables the synchronous alignment of multiple jacking rods 11, reducing the complexity of decentralized adjustments and improving operational efficiency.

[0052] Furthermore, the integrated kit 12 is equipped with a laser line marker 121. The laser line marker 121 can achieve rapid alignment and calibration of the auxiliary equipment and the pipeline by projecting a laser reference coil and aligning it with the edge of the pipe opening.

[0053] Furthermore, the integrated kit 12 includes at least one actuator cylinder 122, with two push rods 11 serving as the two output ends of the actuator cylinder 122. The actuator cylinder 122 can be a pneumatic cylinder, hydraulic cylinder, or similar type. The actuator cylinder 122 drives the two push rods 11 to extend and retract synchronously, forcing the two push rods 11 to maintain symmetrical movement, thus automatically centering the integrated kit 12 and achieving adjustable clamping force. After centering via the actuator cylinder 122, the remaining push rods 11 can be manually adjusted in terms of extension length and clamping force through the telescopic structure.

[0054] It should be noted that this application is not limited to the above-described embodiments. The above embodiments are merely examples, and any embodiments with the same structure and effect as the technical concept within the scope of this application are included in the technical scope of this application. Furthermore, various modifications that can be conceived by those skilled in the art to the embodiments, and other ways of constructing by combining some of the constituent elements of the embodiments, without departing from the spirit of this application, are also included in the scope of this application.

Claims

1. An auxiliary device for installing large-diameter pipelines, characterized in that, include: A jacking frame (1) includes multiple jacking rods (11); Multiple auxiliary connectors (2) are provided at the ends of corresponding push rods (11). Each auxiliary connector (2) has a detection part (22) capable of generating deformation, and a strain patch (3) is provided on the detection part (22).

2. The auxiliary equipment for installing large-diameter pipelines according to claim 1, characterized in that, The auxiliary connector (2) is formed in sequence with a pressing part (21), a detection part (22) and a contact part (23), wherein the pressing part (21) cooperates with the end of the push rod (11).

3. The auxiliary equipment for installing large-diameter pipelines according to claim 2, characterized in that, The contact portion (23) is an arc-shaped plate structure that extends outward and then inward in the radial direction.

4. The auxiliary equipment for installing large-diameter pipelines according to claim 2, characterized in that, A flexible pad (24) is provided on the side of the clamping part (21) away from the top rod (11).

5. An auxiliary device for installing large-diameter pipelines according to claim 4, characterized in that, The surface of the flexible pad (24) has multiple ratchet teeth along its length.

6. The auxiliary equipment for installing large-diameter pipelines according to claim 1, characterized in that, At least four top rods (11) are provided.

7. The auxiliary equipment for installing large-diameter pipelines according to claim 1, characterized in that, The top rod (11) is a telescopic rod.

8. An auxiliary device for installing large-diameter pipelines according to claim 1, characterized in that, The jacking frame (1) also includes an integrated kit (12), on which a plurality of the jacking rods (11) are mounted.

9. An auxiliary device for installing large-diameter pipelines according to claim 8, characterized in that, The integrated kit (12) is equipped with a laser line marker (121).

10. An auxiliary device for installing large-diameter pipelines according to claim 8, characterized in that, The integrated kit (12) contains at least one actuator (122) and two push rods (11) which are the two output ends of the actuator (122).

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