Distribution network spanning frame and distribution network spanning frame adjusting method based on PID control

Abstract

The application provides a distribution network crossing frame and a PID control-based distribution network crossing frame adjusting method, and relates to the technical field of power transmission line construction equipment. The distribution network crossing frame comprises multiple lifting frames, traction ropes, stay ropes, support nets, first adjusting members, second adjusting members, inclination sensors and a control device. The multiple lifting frames are respectively arranged at multiple corner portions of a reference figure and are height-adjustable. The traction ropes are connected to the lifting frames at both ends of the side of the reference figure. The stay ropes are connected to the lifting frames and the support surface. The support net is arranged at the top of the lifting frame and is connected to the traction rope. The first adjusting member is connected to the traction rope, and the second adjusting member is connected to the stay rope. The inclination sensor is arranged on the lifting frame and is used for detecting the perpendicularity. The control device controls the operating state of the first adjusting member and the second adjusting member according to the detection result of the inclination sensor. The application realizes the automatic and accurate regulation and control of the perpendicularity of the crossing frame body, and improves the adjusting precision, construction efficiency and safety.

Description

Technical Field

[0001] This application relates to the field of transmission line construction equipment technology, and in particular to a distribution network crossing frame and a distribution network crossing frame adjustment method based on PID control. Background Technology

[0002] During the construction and renovation of power distribution networks, it is often necessary to erect new overhead lines to connect distributed renewable energy sources or meet the demands of new loads. These new lines inevitably need to cross existing power lines, communication lines, highways, railways, and other obstacles during construction. Currently, commonly used methods for crossing these obstacles rely heavily on traditional tools and equipment such as bamboo poles and large cranes. However, these traditional methods generally suffer from problems such as large workloads, high costs, lengthy erection and dismantling times, and difficulty in guaranteeing construction quality, seriously affecting the construction efficiency and progress of power distribution networks.

[0003] More critically, the verticality of existing crossing structures is typically adjusted manually after erection. Construction workers rely on experience to visually assess whether the structure is tilted and make rough adjustments by manually manipulating ropes or support structures. This method is not only time-consuming and labor-intensive, but also lacks real-time, precise posture feedback, making it difficult to guarantee adjustment accuracy. When faced with changes in external factors such as uneven ground settlement or wind disturbances, the tilt angle of the structure cannot be corrected in a timely and effective manner, leading to a decrease in the overall stability of the crossing structure. Once the structure becomes unstable, it can easily cause frictional damage between the cables and the crossed lines, and may even lead to the structure collapsing, causing serious safety accidents.

[0004] Therefore, how to overcome the problems of poor adjustment accuracy, low construction efficiency and safety hazards of existing power distribution network crossing frames has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] This application provides a power distribution network crossing frame and a power distribution network crossing frame adjustment method based on PID control, in order to solve the technical problems of existing power distribution network crossing frames where the verticality of the frame depends on manual adjustment and cannot achieve automated and precise control, resulting in poor adjustment accuracy, low construction efficiency and safety hazards.

[0006] In a first aspect, embodiments of this application provide a power distribution network crossing frame, comprising:

[0007] A lifting frame, wherein there are multiple lifting frames, which are respectively located at multiple corners of the reference drawing, and the height of the lifting frame is adjustable;

[0008] The two lifting frames located at both ends of either side of the reference drawing are connected by the traction rope;

[0009] Diagonal cable, used to connect the lifting frame and the support surface;

[0010] A support net is provided on the top of the lifting frame and is connected to multiple traction ropes respectively;

[0011] A first adjusting element is connected to the traction rope to adjust the tilt angle of the lifting frame by adjusting the tension of the traction rope;

[0012] The second adjusting component is connected to the inclined rope to adjust the tilt angle of the lifting frame by adjusting the tension of the inclined rope;

[0013] An inclination sensor is installed on the lifting frame, and the inclination sensor is used to detect the verticality of the lifting frame;

[0014] A control device is electrically connected to the tilt sensor, the first adjusting member, and the second adjusting member, respectively. The control device is configured to control the operating state of the first adjusting member and the second adjusting member based on the detection result of the tilt sensor.

[0015] In one possible implementation, the lifting frame includes multiple nested frames, wherein the height of the inner frame relative to the outer frame is adjustable between any two adjacent frames.

[0016] In one possible implementation, the plurality of frames include a first frame, a second frame, and a third frame that are nested sequentially from the inside out;

[0017] Each of the frames includes an inner side facing the reference pattern and an outer side facing away from the reference pattern;

[0018] The top of the first frame is provided with a first inner top pulley located on the inner side and a first outer top pulley located on the outer side;

[0019] The bottom end of the third frame is provided with a third bottom inner pulley located on the inner side and a third bottom outer pulley located on the outer side;

[0020] The two ends of the traction rope are respectively wound around the first top inner pulley and the third bottom inner pulley of the two lifting frames and then connected to the first adjusting component.

[0021] The inclined rope passes sequentially around the first top outer pulley and the third bottom outer pulley before connecting to the second adjusting member.

[0022] In one possible implementation, the bottom end of the third frame is provided with a third bottom middle pulley located between the third bottom inner pulley and the third bottom outer pulley;

[0023] The traction rope also extends from the bottom to at least the top of the first frame after passing around the first adjusting member and the third bottom middle pulley, connecting with the first frame.

[0024] In one possible implementation, the bottom end of the first frame is provided with a first bottom inner pulley located on the inner side and a first bottom outer pulley located on the outer side;

[0025] The top of the second frame is provided with a second top inner pulley located on the inner side and a second top outer pulley located on the outer side, and the bottom of the second frame is provided with a second bottom inner pulley located on the inner side and a second bottom outer pulley located on the outer side;

[0026] The top of the third frame is provided with a third top inner pulley located on the inner side and a third top outer pulley located on the outer side;

[0027] The inclined rope, after passing through the second adjusting member, sequentially passes through the third top outer pulley, the second bottom outer pulley, the second bottom inner pulley, and the third top inner pulley before connecting to the top of the first frame.

[0028] In one possible implementation, the lifting frame further includes a connecting rope, one end of which is connected to the outer side of the top of the third frame, and the other end of which passes sequentially around the second top outer pulley, the third bottom outer pulley, the third bottom inner pulley, and the second top inner pulley before being connected to the inner side of the top of the third frame.

[0029] In one possible implementation, either the first adjusting member or the second adjusting member includes:

[0030] A winding device for winding wire;

[0031] A winding drive is connected to the winding device to drive the winding device to rotate.

[0032] In one possible implementation, it further includes: a base assembly, wherein there are multiple base assemblies corresponding to the lifting frame.

[0033] The base assembly includes:

[0034] The base, on which the lifting frame is supported;

[0035] The diagonal bracing rods are arranged at intervals along the circumference of the lifting frame, and the two ends of the diagonal bracing rods are respectively connected to the base and the lifting frame.

[0036] In one possible implementation, the support mesh is an elastic mesh.

[0037] In one possible implementation, the traction rope is a steel wire rope; and / or, the guide rope is a steel wire rope.

[0038] In one possible implementation, at least one of the first adjusting member and the second adjusting member is an electrically tightening device;

[0039] The control device includes:

[0040] A PID controller, which is communicatively connected to the tilt sensor, is used to generate a control signal based on the verticality deviation.

[0041] An interface for an electric tightening device is electrically connected to the electric tightening device and is used to transmit the control signal.

[0042] Secondly, embodiments of this application provide a distribution network crossing frame adjustment method based on PID control, applied to the distribution network crossing frame described in any of the above claims, comprising the following steps:

[0043] The verticality deviation of the lifting frame is detected, and a deviation signal is generated;

[0044] Based on the deviation signal, the proportional (P), integral (I), and derivative (D) parameters are calculated to generate a control signal;

[0045] The control signal is transmitted to the first adjusting component to adjust the tension of the traction rope, or the control signal is transmitted to the second adjusting component to adjust the tension of the inclined rope, thereby correcting the verticality of the lifting frame.

[0046] The power grid crossing frame and its adjustment method based on PID control provided in this application embodiment monitor the verticality of the lifting frame in real time using an inclination sensor. The control device automatically controls the first and second adjusting components to dynamically adjust the tension of the traction rope and the inclined rope based on the monitoring results, achieving automated and precise control of the verticality of the crossing frame. Compared with the manual adjustment method relying on experience in the prior art, this application significantly improves the adjustment accuracy and avoids the problem of the frame tilting being unable to be corrected in time due to external factors such as foundation settlement and wind disturbance, thereby greatly improving the overall stability and construction safety of the crossing frame. Attached Figure Description

[0047] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0048] Figure 1 A schematic diagram of the structure of the power distribution network crossing frame provided for an embodiment of this application;

[0049] Figure 2A schematic diagram of the structure of two lifting frames connected in a power distribution cross-bracing frame provided for an embodiment of this application;

[0050] Figure 3 A schematic diagram of the structure of the top of the lifting frame in the power distribution cross-pass provided for an embodiment of this application;

[0051] Figure 4 A schematic diagram of the PID tension control structure in the distribution network crossing frame adjustment method based on PID control provided in the embodiments of this application;

[0052] Figure 5 A schematic diagram of the lifting structure of the power distribution cross-pass provided in the embodiments of this application.

[0053] Figure 6 A structural block diagram of the control device, tilt sensor, and adjustment element in the power distribution cross-bracing frame provided for embodiments of this application.

[0054] Explanation of reference numerals in the attached figures:

[0055] 100-Lifting frame; 110-First frame; 111-First top inner pulley; 112-First top outer pulley; 113-First bottom inner pulley; 114-First bottom outer pulley; 120-Second frame; 121-Second top inner pulley; 122-Second top outer pulley; 123-Second bottom inner pulley; 124-Second bottom outer pulley; 130-Third frame; 131-Third bottom inner pulley; 132-Third bottom outer pulley; 133-Third top inner pulley; 134-Third top outer pulley; 135-Third bottom middle pulley;

[0056] 200-Torsion Rope;

[0057] 300-Slant cable;

[0058] 400-Support Network;

[0059] 500 - First Adjusting Component;

[0060] 600 - Second Adjustment Component;

[0061] 700- Tilt Sensor;

[0062] 800 - Control device;

[0063] 900 - Connecting rope;

[0064] 1000 - Base assembly; 1010 - Base; 1020 - Diagonal brace.

[0065] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0066] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. Other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are all within the scope of protection of this application.

[0067] It should be noted that the directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0068] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0069] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, and a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0070] During the construction and renovation of power distribution networks, it is often necessary to erect new overhead lines to connect distributed renewable energy sources or meet the demands of new loads. These new lines inevitably need to cross existing power lines, communication lines, highways, railways, and other obstacles during construction. Currently, commonly used methods for crossing these obstacles rely heavily on traditional tools and equipment such as bamboo poles and large cranes. However, these traditional methods generally suffer from problems such as large workloads, high costs, lengthy erection and dismantling times, and difficulty in guaranteeing construction quality, seriously affecting the construction efficiency and progress of power distribution networks.

[0071] More critically, the verticality of existing crossing structures is typically adjusted manually after erection. Construction workers rely on experience to visually assess whether the structure is tilted and make rough adjustments by manually manipulating ropes or support structures. This method is not only time-consuming and labor-intensive, but also lacks real-time, precise posture feedback, making it difficult to guarantee adjustment accuracy. When faced with changes in external factors such as uneven ground settlement or wind disturbances, the tilt angle of the structure cannot be corrected in a timely and effective manner, leading to a decrease in the overall stability of the crossing structure. Once the structure becomes unstable, it can easily cause frictional damage between the cables and the crossed lines, and may even lead to the structure collapsing, causing serious safety accidents.

[0072] Therefore, how to overcome the problems of poor adjustment accuracy, low construction efficiency and safety hazards of existing power distribution network crossing frames has become a technical problem that urgently needs to be solved in this field.

[0073] To address the technical problems of existing power distribution network crossing frames, which rely on manual adjustment for verticality and cannot achieve automated and precise control, resulting in poor adjustment accuracy, low construction efficiency, and safety hazards, this application proposes a power distribution network crossing frame and a PID control-based adjustment method for it. The power distribution network crossing frame includes multiple lifting frames, traction ropes, inclined ropes, a support net, a first adjusting component, a second adjusting component, an angle sensor, and a control device. Multiple lifting frames are located at various corners of a reference diagram, and their heights are adjustable. Two lifting frames located at either end of a side of the reference diagram are connected by traction ropes. Inclined ropes connect the lifting frames to the support surface. The support net is located at the top of the lifting frames and is connected to multiple traction ropes. The first adjusting component is connected to the traction ropes to adjust the angle of the lifting frame by adjusting the tension of the traction ropes. The second adjusting component is connected to the inclined ropes to adjust the angle of the lifting frame by adjusting the tension of the inclined ropes. An angle sensor is located on the lifting frame and is used to detect the verticality of the lifting frame. The control device is electrically connected to the tilt sensor, the first adjusting member, and the second adjusting member, respectively. The control device is configured to control the operating state of the first adjusting member and the second adjusting member based on the detection result of the tilt sensor.

[0074] The power distribution network crossing frame provided in this application embodiment monitors the verticality of the lifting frame in real time using tilt sensors. A control device automatically controls the first and second adjusting components to dynamically adjust the tension of the traction ropes and inclined ropes based on the monitoring results, achieving automated and precise control of the frame's verticality. Compared to the manual adjustment methods relying on experience in existing technologies, this application significantly improves adjustment accuracy and avoids the problem of untimely correction of frame tilt caused by external factors such as foundation settlement and wind disturbance, thereby greatly enhancing the overall stability and construction safety of the crossing frame.

[0075] The power distribution network crossing frame provided in this application replaces tedious manual operation with automated adjustment, eliminating the need for construction workers to repeatedly visually inspect, climb, and manually adjust ropes. This not only significantly shortens the time required for frame leveling, reducing the labor intensity and operational risks for construction workers, but also effectively reduces construction interruptions caused by excessive adjustment time, thereby significantly improving the efficiency of power distribution network overhead line crossing construction and accelerating the project construction progress.

[0076] The power distribution network crossing frame provided in this application has an automated adjustment system that can continuously and dynamically maintain the optimal vertical state of the frame, ensuring structural reliability even in complex and changing external environments. This fundamentally eliminates the major safety hazards of wire wear or frame collapse caused by frame instability, providing a solid safety guarantee for crossing construction and solving the technical problems of poor adjustment accuracy, low construction efficiency, and safety hazards in the prior art.

[0077] The technical solution of the application will be described in detail below with reference to the accompanying drawings and specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0078] In the embodiments of this application, reference is made to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, an embodiment of this application provides a power distribution network crossing frame, including multiple lifting frames 100, traction ropes 200, inclined ropes 300, support nets 400, a first adjusting member 500, a second adjusting member 600, an tilt sensor 700, and a control device 800.

[0079] There are multiple lifting frames 100, which are respectively located at multiple corners of the reference drawing, and the height of the lifting frames 100 is adjustable.

[0080] The two lifting frames 100 located at either end of the reference drawing are connected by the traction rope 200.

[0081] The inclined rope 300 is used to connect the lifting frame 100 and the support surface.

[0082] The support net 400 is located on the top of the lifting frame 100 and is connected to multiple traction ropes 200.

[0083] The first adjusting member 500 is connected to the traction rope 200 to adjust the tilt angle of the lifting frame 100 by adjusting the tension of the traction rope 200.

[0084] The second adjusting component 600 is connected to the inclined rope 300 to adjust the tilt angle of the lifting frame 100 by adjusting the tension of the inclined rope 300.

[0085] An inclination sensor 700 is installed on the lifting frame 100 and is used to detect the verticality of the lifting frame 100.

[0086] The control device 800 is electrically connected to the tilt sensor 700, the first adjustment member 500, and the second adjustment member 600, respectively. The control device 800 is configured to control the operating state of the first adjustment member 500 and the second adjustment member 600 according to the detection result of the tilt sensor 700.

[0087] The power distribution cross-bracing frame of this application embodiment includes multiple lifting frames 100, traction ropes 200, inclined ropes 300, support nets 400, first adjusting components 500, second adjusting components 600, tilt sensors 700, and control devices 800.

[0088] Multiple lifting frames 100 are respectively located at multiple corners of a reference shape. For example, the reference shape can be a rectangle or a square, and correspondingly, four lifting frames 100 are respectively located at the four vertices of the rectangle. Each lifting frame 100 is a height-adjustable structure, such as using a screw lifting mechanism, a hydraulic lifting column, or a scissor lifting structure, to achieve independent adjustment of the vertical height of the top of the lifting frame 100.

[0089] The traction rope 200 is used to connect two lifting frames 100 located at either end of any side of the reference drawing. For example, for four rectangular lifting frames 100, along one long side of the rectangle, the two lifting frames 100 located at both ends of that long side are connected by a traction rope 200; similarly, along the other long side and the two short sides, the corresponding lifting frames 100 at both ends are also connected by traction ropes 200. In this way, multiple traction ropes 200 together form a grid-like support plane at the top of the lifting frames 100.

[0090] The support net 400 is laid and fixed on top of multiple lifting frames 100, and is connected to multiple traction ropes 200. The support net 400 can be made of high-strength nylon rope or steel wire rope, and is used to support the conductors or other construction materials being crossed, preventing them from falling.

[0091] One end of the inclined cable 300 is connected to the top or middle of the lifting frame 100, and the other end is fixed to the ground or other stable support surface. The function of the inclined cable 300 is to provide lateral tension to the lifting frame 100, thereby enhancing the wind resistance and structural stability of the entire crossing frame.

[0092] The first adjusting member 500 is connected to each traction rope 200. The first adjusting member 500 can be an electric winch or a tensioner, used to tighten or loosen the traction rope 200, thereby changing the magnitude and direction of the tension of the traction rope 200 on the top of the lifting frame 100. By adjusting the tension of the traction rope 200, the tilt angle of the lifting frame 100 connected to it in the horizontal direction can be finely adjusted.

[0093] The second adjusting member 600 is connected to each of the inclined ropes 300. The second adjusting member 600 can also be an electric winch or tensioner, used to tighten or loosen the inclined ropes 300, thereby changing the magnitude and direction of the tension exerted by the inclined ropes 300 on the lifting frame 100. By adjusting the tension of the inclined ropes 300, the tilt angle of the lifting frame 100 in the direction perpendicular to the support surface can be finely adjusted.

[0094] An inclination sensor 700 is installed on each lifting frame 100 to detect the perpendicularity of the lifting frame 100 relative to the direction of gravity in real time, i.e., the tilt angle and tilt direction of the lifting frame 100. The inclination sensor 700 sends the detected attitude signal to the control device 800 in real time.

[0095] The control device 800 is electrically connected to the tilt sensor 700, the first adjusting member 500, and the second adjusting member 600. The core function of the control device 800 is to automatically control the operating state of the first adjusting member 500 and the second adjusting member 600 based on the detection results of the tilt sensor 700. Specifically, when the tilt sensor 700 of any lifting frame 100 detects that the lifting frame 100 has tilted and sends the tilt data to the control device 800, the control device 800 calculates the magnitude and direction of the compensation force required to correct the tilt. Subsequently, the control device 800 issues a command to drive the first adjusting member 500 and the second adjusting member 600 associated with the lifting frame 100 to perform corresponding tightening or loosening actions. For example, if one lifting frame 100 tilts inward, the control device 800 can tighten the second adjusting member 600 of the inclined rope 300 connected to the outside of the lifting frame 100, while simultaneously loosening the first adjusting member 500 of the traction rope 200 connected to the lifting frame 100, thereby generating a counter-torque to pull the lifting frame 100 back to a vertical state. This process is a closed-loop real-time feedback adjustment process until all tilt sensors 700 of the lifting frames 100 report that the verticality meets the standard.

[0096] Through the above structure, the power distribution cross-bracing frame of this application can realize automated, high-precision real-time adjustment of the verticality of the frame, effectively solving the problems of poor accuracy, low efficiency and safety risks caused by manual adjustment mentioned in the background technology.

[0097] The power distribution network crossing frame provided in this application embodiment monitors the verticality of the lifting frame 100 in real time using an angle sensor 700. The control device 800 automatically controls the first adjusting component 500 and the second adjusting component 600 to dynamically adjust the tension of the traction rope 200 and the inclined rope 300 based on the monitoring results, achieving automated and precise control of the crossing frame's verticality. Compared to the manual adjustment methods relying on experience in existing technologies, this application significantly improves adjustment accuracy and avoids the problem of untimely correction of frame tilt caused by external factors such as foundation settlement and wind disturbance, thereby greatly enhancing the overall stability and construction safety of the crossing frame.

[0098] The power distribution network crossing frame provided in this application replaces tedious manual operation with automated adjustment, eliminating the need for construction workers to repeatedly visually inspect, climb, and manually adjust ropes. This not only significantly shortens the time required for frame leveling, reducing the labor intensity and operational risks for construction workers, but also effectively reduces construction interruptions caused by excessive adjustment time, thereby significantly improving the efficiency of power distribution network overhead line crossing construction and accelerating the project construction progress.

[0099] The power distribution network crossing frame provided in this application has an automated adjustment system that can continuously and dynamically maintain the optimal vertical state of the frame, ensuring structural reliability even in complex and changing external environments. This fundamentally eliminates the major safety hazards of wire wear or frame collapse caused by frame instability, providing a solid safety guarantee for crossing construction and solving the technical problems of poor adjustment accuracy, low construction efficiency, and safety hazards in the prior art.

[0100] It should be noted that the tilt sensor 700 can be a dual-axis tilt sensor 700 or a triaxial accelerometer based on microelectromechanical systems (MEMS) technology, or a liquid pendulum tilt sensor 700 or an electrochemical tilt sensor 700. The tilt sensor 700 is installed on the upper part of the column or the top truss of the lifting frame 100, with the mounting surface parallel or perpendicular to the axis of the column of the lifting frame 100, so that the tilt angle detected by the tilt sensor 700 can accurately reflect the perpendicularity deviation of the lifting frame 100 relative to the direction of gravity. The tilt sensor 700 outputs analog voltage signals, current signals, or digital communication signals (e.g., RS485, I2C, CAN bus signals) to send the real-time detected tilt angle value of the lifting frame 100 to the control device 800.

[0101] The control device 800 may include a central processing unit, a storage unit, an input / output interface, and a drive circuit. The central processing unit may be a microcontroller, a digital signal processor (DSP), a field-programmable gate array (FPGA), or an industrial control computer. The storage unit pre-stores the standard verticality threshold of the lifting frame 100 and the control logic programs of the first adjustment member 500 and the second adjustment member 600. The input / output interface is used to receive the detection signal sent by the tilt sensor 700 and send control commands to the drive circuits of the first adjustment member 500 and the second adjustment member 600. When the central processing unit receives a tilt angle feedback from the tilt sensor 700 corresponding to any lifting frame 100 that exceeds the preset threshold, the central processing unit, based on the tilt direction and tilt angle, calls the control logic program to calculate the required adjustment amount of the first adjustment member 500 and the second adjustment member 600 associated with that lifting frame 100, and controls the first adjustment member 500 and / or the second adjustment member 600 to perform tightening or loosening actions through the drive circuit until the tilt angle feedback from the tilt sensor 700 falls back to the preset threshold range.

[0102] Furthermore, the control device 800 can also be connected to a human-machine interface, which can be a touch screen, a combination of buttons and a display screen, or a mobile terminal wireless communication interface. Construction personnel can use the human-machine interface to set verticality thresholds, switch between manual and automatic modes, and view the real-time tilt angle data of each lifting frame 100. The control device 800 can also be configured with a wireless communication module, which uses WiFi, LoRa, 4G / 5G, or Bluetooth communication methods to upload the tilt angle data of each lifting frame 100 to a remote monitoring terminal in real time, enabling remote monitoring and early warning of the construction process.

[0103] In some embodiments, the lifting frame 100 includes multiple nested frames, and the height of the inner frame relative to the outer frame is adjustable between any two adjacent frames.

[0104] In this embodiment, the lifting frame 100 includes multiple nested frames. The frames employ a sleeve-type structure, with the outermost frame serving as a base 1010 fixed to the ground or support surface, and the top of the innermost frame supporting the support net 400. In any two adjacent frames, the outer wall of the inner frame slides into contact with the inner wall of the outer frame. The height of the inner frame relative to the outer frame is adjustable. Specifically, guide grooves and guide rails can be provided between the inner walls of the outer and inner frames to ensure alignment during lifting. The height adjustment mechanism can be a screw-nut pair, where the screw is rotatably mounted in the outer frame, and the nut is fixed to the bottom of the inner frame. A motor drives the screw to rotate, causing the inner frame to rise or fall. Alternatively, a hydraulic cylinder or electric push rod can be used. The cylinder body of the hydraulic cylinder is fixed to the outer frame, and the piston rod is connected to the inner frame. Extension and retraction are achieved through a hydraulic system or a motor. Once the predetermined height is reached, the inner and outer frames can be locked together using a locking mechanism. This locking mechanism can be a pin-type, snap-on, or wedge-type structure to prevent unexpected slippage. The number of frames can be determined based on the maximum height required, for example, using a three- or four-level nested structure, with each level adjustable independently, thus achieving a wide range of stepless or stepped adjustment of the overall height of the lifting frame 100.

[0105] In this embodiment, by configuring the lifting frame 100 as multiple nested frames with adjustable height between adjacent frames, the inner frame can be completely retracted into the outer frame when not in use. This significantly reduces the overall volume and length of the crossing frame, facilitating transportation and on-site handling, and lowering logistics costs and manpower input during the construction preparation phase. In use, the frames are deployed sequentially according to the required height for crossing obstacles, quickly reaching the target height without the need for additional splicing or complex support structures, significantly shortening setup time and improving construction efficiency. Simultaneously, the nested telescopic structure, combined with automated drive components (such as motor screws or hydraulic cylinders), can be linked with the control device 800 and tilt sensor 700 to achieve precise height control and automatic verticality compensation of the lifting frame 100. This avoids errors and instability caused by manual adjustments based on experience, further enhancing the overall safety and construction quality of the crossing frame. In addition, the multi-layer nested design ensures that the lifting frame 100 has good structural rigidity and bending resistance when fully raised, and can reliably bear the load of the support net 400 and the conductor. This solves the technical problems of poor adjustment accuracy, low construction efficiency and safety hazards in the existing technology.

[0106] In other embodiments, the multiple frames include a first frame 110, a second frame 120, and a third frame 130 nested from the inside out. Each frame includes an inner side facing the reference drawing and an outer side facing away from the reference drawing. The top of the first frame 110 is provided with a first top inner pulley 111 located on the inner side and a first top outer pulley 112 located on the outer side. The bottom of the third frame 130 is provided with a third bottom inner pulley 131 located on the inner side and a third bottom outer pulley 132 located on the outer side. The two ends of the traction rope 200 are respectively wrapped around the first top inner pulley 111 and the third bottom inner pulley 131 of the two lifting frames 100 and then connected to the first adjusting member 500. The diagonal pull rope 300 is wrapped around the first top outer pulley 112 and the third bottom outer pulley 132 and then connected to the second adjusting member 600.

[0107] In this embodiment, the multiple frames include a first frame 110, a second frame 120, and a third frame 130 nested from the inside out. The first frame 110 is located at the innermost side, the second frame 120 is fitted around the first frame 110, and the third frame 130 is fitted around the second frame 120. Each frame has an inner side facing the reference image and an outer side facing away from the reference image. The top of the first frame 110 is provided with a first top inner pulley 111 and a first top outer pulley 112, with the first top inner pulley 111 located inside the first frame 110 and the first top outer pulley 112 located outside the first frame 110. The bottom of the third frame 130 is provided with a third bottom inner pulley 131 and a third bottom outer pulley 132, with the third bottom inner pulley 131 located inside the third frame 130 and the third bottom outer pulley 132 located outside the third frame 130.

[0108] The first adjusting member 500 includes a first winding device and a first winding drive member, and one first adjusting member 500 is provided for each lifting frame 100. The routing path of the traction rope 200 is as follows: one end of the traction rope 200 is led out from the first winding device of the first adjusting member 500 corresponding to one lifting frame 100, first passes around the third bottom inner pulley 131 of the lifting frame 100, then passes upward around the first top inner pulley 111 of the lifting frame 100, then extends horizontally to another lifting frame 100, passing around the first top inner pulley 111 and the third bottom inner pulley 131 of the other lifting frame 100 in sequence, and finally the other end of the traction rope 200 is connected to the first winding device of the first adjusting member 500 corresponding to the other lifting frame 100. Through this routing method, the traction rope 200 forms a complete closed loop between the two lifting frames 100. The first winding drive unit drives the first winding device to rotate, thereby tightening or loosening the traction rope 200 and simultaneously changing the tension distribution between the top and bottom of the inner sides of the two lifting frames 100.

[0109] The second adjusting member 600 includes a second winding device and a second winding drive. Each lifting frame 100 is provided with one second adjusting member 600. The routing path of the inclined rope 300 is as follows: one end of the inclined rope 300 is led out from the second winding device of the second adjusting member 600 corresponding to the lifting frame 100, first passes around the third bottom outer pulley 132 of the lifting frame 100, then passes upwards around the first top outer pulley 112 of the lifting frame 100, and then the inclined rope 300 continues to extend to the anchor point on the support surface and is fixedly connected to the anchor point. Through this routing method, the inclined rope 300 forms a continuous tension transmission path from bottom to top on the outside of the lifting frame 100. The second winding drive drives the second winding device to rotate, thereby tightening or loosening the inclined rope 300 and changing the tension on the outside of the lifting frame 100.

[0110] The first frame 110, the second frame 120, and the third frame 130 are slidably fitted together by a guide structure. When the lifting frame 100 extends or retracts, the first top inner pulley 111 and the first top outer pulley 112 move up and down with the first frame 110, while the third bottom inner pulley 131 and the third bottom outer pulley 132 remain fixed with the third frame 130. This ensures that the tension of the traction rope 200 and the inclined rope 300 always acts on the key stress points of the lifting frame 100, avoiding frictional damage between the ropes and the edges of the frame.

[0111] In this embodiment, the traction rope 200 is routed by extending from the first winding device of the first adjusting member 500 of a lifting frame 100, first winding downwards around the third bottom inner pulley 131 of the lifting frame 100, then winding upwards around the first top inner pulley 111 of the lifting frame 100, and then extending horizontally to another lifting frame 100, sequentially winding around the first top inner pulley 111 and the third bottom inner pulley 131 of that other lifting frame 100 before connecting to the first winding device of the first adjusting member 500 of that other lifting frame 100. This arrangement allows the traction rope 200 to form a continuous tension transmission path from bottom to top inside the lifting frame 100 when the first adjusting member 500 retracts or extends the traction rope 200. This arrangement enables the first adjusting member 500 to simultaneously act on the top and bottom of the inner side of the lifting frame 100 when retracting or extending the traction rope 200, forming a pair of opposite-direction tension torques with separate points of action. This allows for efficient and precise adjustment of the tilt angle of the lifting frame 100 towards the inside or outside of the reference pattern, avoiding local stress concentration and adjustment blind spots caused by single-point force application. Meanwhile, the traction rope 200 is guided by pulleys throughout its length, and has no direct contact with the edges of the frame, which reduces rope wear and extends its service life.

[0112] Furthermore, by setting the routing of the guy rope 300 to originate from the second winding device of the second adjusting member 600, first winding downwards around the third bottom outer pulley 132, then upwards around the first top outer pulley 112, and finally extending to the anchor point on the support surface, the guy rope 300 forms a continuous tension transmission path from bottom to top on the outside of the lifting frame 100. This arrangement allows the second adjusting member 600 to simultaneously act on the bottom and top of the outside of the lifting frame 100 when retracting and extending the guy rope 300, forming a lateral stabilizing moment to resist external disturbances such as wind and foundation settlement. Each lifting frame 100 is independently equipped with a second adjusting member 600, enabling the control device 800 to make differentiated adjustments for different tilt conditions of a single lifting frame 100, significantly enhancing the overall anti-overturning capability and attitude control flexibility of the crossing frame. Through the coordinated operation of the first adjusting component 500 and the second adjusting component 600, the control device 800 can independently perform high-precision attitude correction on each lifting frame 100 based on the real-time feedback from the tilt sensor 700. This completely eliminates the limitations of manual visual inspection and manual adjustment, significantly improves adjustment accuracy, construction efficiency and safety performance, and effectively solves the technical problems of poor adjustment accuracy, low construction efficiency and safety hazards in the existing technology.

[0113] In other possible embodiments, the bottom end of the third frame 130 is provided with a third bottom middle pulley 135 located between the third bottom inner pulley 131 and the third bottom outer pulley 132; the traction rope 200 also extends from below to at least the top of the first frame 110 after passing around the first adjusting member 500 and passing around the third bottom middle pulley 135 to connect with the first frame 110.

[0114] In this embodiment, a third bottom intermediate pulley 135 is also provided at the bottom end of the third frame 130. The third bottom intermediate pulley 135 is located between the third bottom inner pulley 131 and the third bottom outer pulley 132. The routing of the traction rope 200 is further extended based on the above: in addition to following the aforementioned path from the first winding device of the first adjusting member 500 of a lifting frame 100, winding downwards around the third bottom inner pulley 131, winding upwards around the first top inner pulley 111, extending horizontally to another lifting frame 100 and sequentially winding around the first top inner pulley 111 and the third bottom inner pulley 131 before returning to the first winding device of that other lifting frame 100, the traction rope 200 also winds around the third bottom intermediate pulley 135 after winding around the first winding device of the first adjusting member 500. The traction rope 200 extends vertically upwards from below the third bottom intermediate pulley 135 to the top of the first frame 110 and is fixedly connected to the top of the first frame 110. Specifically, the traction rope 200 can be drawn out from the first winding device, and a section of rope is first separated. This section of rope passes downward around the third bottom middle pulley 135, and then passes upward through the inside of the first frame 110 or extends along the outside of the first frame 110 to the top of the first frame 110. It is then fixed to the top of the first frame 110 by a hook, rope clamp, or welding ring. This section of rope and the main body of the traction rope 200 that forms a closed loop can be different parts of the same rope or independent ropes, but they are all under the unified control of the first adjusting member 500. With this structure, the first adjusting member 500 can adjust the horizontal tension between the two lifting frames 100 by winding and releasing the traction rope 200, and can also independently adjust the vertical tension on the inner top of each lifting frame 100, thereby achieving more precise control over the tilt angle of a single lifting frame 100.

[0115] In this embodiment, by setting an additional connection path for the traction rope 200 between the third bottom intermediate pulley 135 and the top of the first frame 110, and by extending the traction rope 200 upwards to the top of the first frame 110 after passing around the first adjusting member 500 and then around the third bottom intermediate pulley 135, the tensioning operation of the first adjusting member 500 on the traction rope 200 can simultaneously act on two levels: on the one hand, adjusting the horizontal traction force between the two lifting frames 100, and on the other hand, independently adjusting the vertical tension on the inner top of each lifting frame 100. This dual adjustment mechanism allows the control device 800 to more flexibly and accurately correct the verticality of a single lifting frame 100. Even if the two lifting frames 100 have different tilt directions and angles, differentiated correction can be achieved by adjusting the tension of their respective branch rope segments, significantly improving the overall attitude control accuracy of the bridging frame. Meanwhile, the arrangement of the traction rope 200 extending from below the third bottom middle pulley 135 and fixed upwards utilizes the space at the bottom of the third frame 130 as a turning fulcrum, avoiding interference or wear between the rope and the frame edges during the extension and retraction of the lifting frame 100, thus extending the rope's service life. Furthermore, this structure does not require additional power sources or adjustment components; it achieves higher precision adjustment capabilities simply by optimizing the existing traction rope 200 path, reducing equipment costs and maintenance complexity. This further strengthens the solution to the problems of poor adjustment precision, low construction efficiency, and safety hazards in the prior art.

[0116] In another embodiment, the bottom end of the first frame 110 is provided with a first bottom inner pulley 113 located on the inner side and a first bottom outer pulley 114 located on the outer side.

[0117] The top of the second frame 120 is provided with a second top inner pulley 121 located on the inner side and a second top outer pulley 122 located on the outer side, and the bottom of the second frame 120 is provided with a second bottom inner pulley 123 located on the inner side and a second bottom outer pulley 124 located on the outer side.

[0118] The top of the third frame 130 is provided with a third top inner pulley 133 located on the inner side and a third top outer pulley 134 located on the outer side.

[0119] After passing through the second adjusting member 600, the inclined rope 300 passes through the third top outer pulley 134, the second bottom outer pulley 124, the second bottom inner pulley 123, and the third top inner pulley 133 in sequence before connecting to the top of the first frame 110.

[0120] In this embodiment, the bottom end of the first frame 110 is provided with a first inner bottom pulley 113 and a first outer bottom pulley 114, with the first inner bottom pulley 113 located inside the first frame 110 and the first outer bottom pulley 114 located outside the first frame 110. The top end of the second frame 120 is provided with a second inner top pulley 121 and a second outer top pulley 122, with the second inner top pulley 121 located inside the second frame 120 and the second outer top pulley 122 located outside the second frame 120; the bottom end of the second frame 120 is provided with a second inner bottom pulley 123 and a second outer bottom pulley 124, with the second inner bottom pulley 123 located inside the second frame 120 and the second outer bottom pulley 124 located outside the second frame 120. The top of the third frame 130 is provided with a third top inner pulley 133 and a third top outer pulley 134. The third top inner pulley 133 is located inside the third frame 130, and the third top outer pulley 134 is located outside the third frame 130.

[0121] The routing path of the inclined cable 300 is further optimized based on the above: one end of the inclined cable 300 is led out from the second winding device of the second adjusting member 600 corresponding to the lifting frame 100, first winding downwards around the third bottom outer pulley 132 of the lifting frame 100, then winding upwards around the first top outer pulley 112 of the lifting frame 100, and then the inclined cable 300 continues to extend to the anchor point on the support surface and is fixedly connected to the anchor point. On this basis, after winding around the second adjusting member 600, the inclined cable 300 also winds around the third top outer pulley 134, the second bottom outer pulley 124, the second bottom inner pulley 123, and the third top inner pulley 133 in sequence, and finally connects to the top of the first frame 110. Specifically, after the inclined cable 300 is led out from the second adjusting member 600, it first passes around the third top outer pulley 134, then downwards around the second bottom outer pulley 124, then around the second bottom inner pulley 123, and then upwards around the third top inner pulley 133, finally being fixedly connected to the top of the first frame 110. Through this multi-segment winding path, the inclined cable 300 forms a multi-guide and tension transmission structure inside the lifting frame 100, so that the second adjusting member 600 can simultaneously act on multiple key nodes of the lifting frame 100 to retract and extend the inclined cable 300, achieving a multi-point balanced distribution of the outer tension.

[0122] The first frame 110, the second frame 120, and the third frame 130 are connected by a guide structure to achieve a sliding fit. When the lifting frame 100 extends or retracts, each pulley moves with the corresponding frame, always maintaining smooth guidance and tension transmission of the inclined rope 300.

[0123] In this embodiment, inner and outer pulleys are respectively installed at the bottom of the first frame 110, the top and bottom of the second frame 120, and the top of the third frame 130. The inclined rope 300, after passing through the second adjusting member 600, sequentially passes through the third top outer pulley 134, the second bottom outer pulley 124, the second bottom inner pulley 123, and the third top inner pulley 133 before connecting to the top of the first frame 110. This allows the inclined rope 300 to form a multiple looping path inside the lifting frame 100, from top to bottom and back to top. This arrangement allows the second adjusting member 600 to simultaneously act on multiple height positions outside the lifting frame 100 when retracting or extending the inclined rope 300, including the top of the third frame 130, the inner and outer sides of the bottom of the second frame 120, and the inner side of the top of the third frame 130, forming a multi-point coordinated lateral tension distribution. This significantly improves the overall stiffness and stability of the lifting frame 100 when resisting complex external forces (such as uneven wind force and eccentric load). Meanwhile, the inclined rope 300 is guided by multiple pulleys, avoiding direct friction between the rope and the edges of the frame, extending the rope's service life, and ensuring that the inclined rope 300 remains in a smooth guiding state at different telescopic heights, without jamming or sudden tension changes due to frame telescopic movement. Through the coordinated operation of the first adjusting component 500 and the second adjusting component 600, the control device 800 can perform high-precision attitude correction on each lifting frame 100 based on real-time feedback from the tilt sensor 700, completely eliminating the limitations of manual visual inspection and adjustment, significantly improving adjustment accuracy, construction efficiency, and safety performance, and effectively solving the technical problems of poor adjustment accuracy, low construction efficiency, and safety hazards in existing technologies.

[0124] In some possible embodiments, the lifting frame 100 further includes a connecting rope 900, one end of which is connected to the outer side of the top of the third frame 130, and the other end is connected to the inner side of the top of the third frame 130 after passing through the second top outer pulley 122, the third bottom outer pulley 132, the third bottom inner pulley 131 and the second top inner pulley 121 in sequence.

[0125] In this embodiment, the lifting frame 100 also includes a connecting rope 900. One end of the connecting rope 900 is fixedly connected to the outer side of the top of the third frame 130. The connecting rope 900 starts from the outer side of the top of the third frame 130, passes sequentially around the second top outer pulley 122, the third bottom outer pulley 132, the third bottom inner pulley 131, and the second top inner pulley 121, and finally the other end of the connecting rope 900 is fixedly connected to the inner side of the top of the third frame 130. Through this routing method, the connecting rope 900 forms a closed loop path between the outer side of the top of the third frame 130 and the inner side of the top of the third frame 130. This path passes sequentially through the second top outer pulley 122 and the second top inner pulley 121 at the top of the second frame 120, and the third bottom outer pulley 132 and the third bottom inner pulley 131 at the bottom of the third frame 130. The length of the connecting rope 900 is fixed and it does not participate in active adjustment. However, during the extension and retraction of the lifting frame 100, the connecting rope 900 is kept taut by the guiding action of each pulley, and a pre-tensioning force is applied to the second frame 120 and the third frame 130 to enhance the structural coupling between the frames of each layer.

[0126] In this embodiment, by setting a connecting rope 900, with one end connected to the outer side of the top of the third frame 130 and the other end sequentially passing through the second top outer pulley 122, the third bottom outer pulley 132, the third bottom inner pulley 131, and the second top inner pulley 121 before connecting to the inner side of the top of the third frame 130, the connecting rope 900 forms a closed-loop tension structure within the lifting frame 100. This structure establishes a direct mechanical connection between the outer and inner sides of the top of the third frame 130, while distributing the tension to the top of the second frame 120 and the bottom of the third frame 130. This effectively suppresses deformation and swaying of the lifting frame 100 when subjected to lateral forces or torsional moments, significantly improving the overall torsional stiffness and structural stability of the lifting frame 100. The connecting rope 900 is guided by multiple pulleys, avoiding direct friction between the rope and the edges of the frame, extending its service life, and ensuring smooth sliding during the extension and retraction of the lifting frame 100 without affecting its normal height adjustment. The connecting rope 900, as a passive reinforcement element, requires no additional power source or control device 800. It has a simple structure and low cost, yet it can effectively compensate for the deficiencies of the active adjustment system in terms of torsion and deformation resistance, further improving the safety and reliability of the gantry under complex working conditions, thereby better solving the safety hazards existing in the background technology.

[0127] In some embodiments, either the first adjusting member 500 or the second adjusting member 600 includes a winding device and a winding drive. The winding device is used for winding wire; the winding drive is connected to the winding device to drive the winding device to rotate.

[0128] In this embodiment, either the first adjusting member 500 or the second adjusting member 600 includes a winding device and a winding drive. The winding device is used to wind and unwind the rope. The winding device can be a drum, winch, or reel structure. The surface of the winding device has a spiral groove or a smooth surface to accommodate the rope, so as to evenly distribute the rope. The winding drive is connected to the winding device and is used to drive the winding device to rotate forward or backward. The winding drive can be a servo motor, stepper motor, or hydraulic motor. The output shaft of the winding drive is connected to the rotating shaft of the winding device through a coupling, gear transmission, or belt transmission. When the winding drive receives a control command from the control device 800, the winding drive drives the winding device to rotate, realizing the action of tightening or loosening the rope, thereby adjusting the tension of the traction rope 200 or the inclined rope 300. The winding drive can be equipped with an encoder or angle sensor inside or outside to provide real-time feedback on the number of rotations or angle of the winding device, so that the control device 800 can accurately calculate the winding and unwinding length and tension of the rope.

[0129] In this embodiment, by configuring either the first adjusting member 500 or the second adjusting member 600 to include a winding device and a winding drive, the tension adjustment of the traction rope 200 or the inclined rope 300 no longer relies on manual operation. Instead, the winding drive automatically drives the winding device according to the instructions of the control device 800. This automated adjustment method completely eliminates the errors caused by manual visual inspection based on experience and manual pulling of the rope, significantly improving the adjustment accuracy and ensuring that the verticality of the lifting frame 100 can be precisely controlled within the preset range. At the same time, the winding drive has a fast response speed and reliable operation, and can quickly make adjustments based on the real-time feedback of the tilt sensor 700, significantly shortening the adjustment time and improving construction efficiency. In addition, automated adjustment avoids manual operation by construction personnel at heights or in dangerous areas, reducing labor intensity and personal safety risks, and fundamentally solving the technical problems of poor adjustment accuracy, low construction efficiency, and safety hazards caused by manual adjustment in the background art.

[0130] In one possible embodiment, it further includes: a base assembly 1000, which is a plurality of base assemblies corresponding to the lifting frame 100. The base assembly 1000 includes a base 1010 and diagonal braces 1020, and the lifting frame 100 is supported on the base 1010. There are a plurality of diagonal braces 1020, which are spaced apart circumferentially along the lifting frame 100. The two ends of the diagonal braces 1020 are respectively connected to the base 1010 and the lifting frame 100.

[0131] In this embodiment, the power distribution network crossing frame also includes a base assembly 1000. Multiple base assemblies 1000 are provided, corresponding to each lifting frame 100, with one base assembly 1000 for each lifting frame 100. The base assembly 1000 includes a base 1010 and multiple diagonal braces 1020. The base 1010 is placed on a support surface, and the bottom of the lifting frame 100 is supported on the base 1010. The base 1010 bears all the vertical loads of the lifting frame 100, the supporting network 400 above it, and the conductors, and distributes the loads to the support surface. Multiple diagonal braces 1020 are spaced apart circumferentially along the lifting frame 100. The number of diagonal braces 1020 can be three, four, or more to ensure lateral support to the lifting frame 100 from different directions. Each diagonal brace 1020 has its two ends connected to the base 1010 and the lifting frame 100, respectively. One end of the diagonal brace 1020 is hinged or fixedly connected to the base 1010, and the other end is hinged or fixedly connected to the bottom or middle of the third frame 130 of the lifting frame 100. The diagonal brace 1020 can be a rigid member, such as a steel pipe or angle steel, or it can be an adjustable-length telescopic rod to adapt to different terrains and installation angles. Through the combined action of multiple diagonal braces 1020, the installation stability of the lifting frame 100 on the base 1010 is significantly enhanced.

[0132] In this embodiment, by setting a base assembly 1000, and within the base assembly 1000, a base 1010 and multiple diagonal braces 1020 spaced circumferentially along the lifting frame 100, the bottom of the lifting frame 100 obtains reliable support and lateral restraint. The base 1010 evenly transfers the vertical load of the lifting frame 100 to the support surface, avoiding tilting of the frame caused by local foundation settlement. The multiple diagonal braces 1020 provide lateral support to the lifting frame 100 from different directions, effectively resisting the overturning moment caused by horizontal loads such as wind force, tension of the traction rope 200, and tension of the diagonal rope 300, significantly improving the overall overturning resistance and structural stability of the crossing frame. The connection method between the diagonal braces 1020 and the base 1010 and the lifting frame 100 is simple and reliable, and easy to install and disassemble, which is beneficial to improving on-site construction efficiency. The base assembly 1000 works in conjunction with the tilt sensor 700, the first adjusting component 500, and the second adjusting component 600 to form an automatic leveling system, enabling the crossing frame to maintain a stable vertical posture under complex terrain and severe weather conditions. This further solves the safety hazards caused by poor precision of manual adjustment and easy instability of the frame in the prior art.

[0133] In other embodiments, the support net 400 is an elastic net.

[0134] In this embodiment, the support net 400 is an elastic net. The elastic net is woven from an elastic material, such as polyester fiber, nylon, or a rubber-fiber composite woven fabric. The mesh size of the elastic net is determined according to the diameter of the cable it supports, ensuring that the cable will not pass through the mesh. The elastic net is laid and fixed on top of multiple lifting frames 100, with its edges connected to the traction rope 200, keeping the elastic net taut under the support of the traction rope 200. The elastic net has a certain initial pretension to maintain a flat support surface, and can elastically deform to absorb impact energy when subjected to cable impact or ballast. The connection between the elastic net and the traction rope 200 can be achieved using hooks, cable ties, or buckles, facilitating installation and replacement.

[0135] In this embodiment, by setting the support net 400 as an elastic net, the support net 400 can undergo elastic deformation when subjected to accidental impact from falling conductors or construction materials, absorbing impact energy and preventing rigid collisions between the conductors and the support net 400 that could lead to conductor insulation damage or metal fatigue. The elastic properties of the elastic net can also automatically adapt to uneven conductor loads, keeping the support surface stable and reducing the risk of conductors rolling or slipping on the support net 400, thereby reducing the probability of frictional damage between the conductors and the crossed lines. Simultaneously, the elastic net's elastic contraction properties simplify tensioning and fixing operations during installation, improving construction efficiency. The elastic net can be quickly recycled after use, resulting in high reusability and reduced construction costs. Through the buffering and protective effects of the elastic net, the overall safety of the crossing frame is significantly improved, effectively solving the technical problems of safety accidents caused by frame instability or wire friction in the prior art.

[0136] In one possible embodiment, the traction rope 200 is a steel wire rope; and / or, the guy rope 300 is a steel wire rope.

[0137] In this embodiment, the traction rope 200 is a steel wire rope. The steel wire rope is made of multiple strands of fine steel wire twisted together, possessing high tensile strength and wear resistance. The surface of the steel wire rope can be coated with anti-rust grease or galvanized to improve corrosion resistance and adapt to complex outdoor environments. The diameter of the steel wire rope is selected based on the load requirements of the bridging frame and the height of the lifting frame 100, typically using a diameter between six and twelve millimeters. The steel wire rope cooperates with the winding device of the first adjusting component 500. The drum surface of the winding device has grooves matching the diameter of the steel wire rope to ensure that the steel wire rope is neatly arranged during winding, avoiding tangling and compression deformation.

[0138] In this embodiment, the stay rope 300 is a steel wire rope. The stay rope 300 is also made of multiple strands of fine steel wire twisted together, possessing high tensile strength and wear resistance. The surface of the stay rope 300 can be coated with anti-rust grease or galvanized to improve corrosion resistance. The diameter of the stay rope 300 is selected based on the lateral load requirements of the gantry and the height of the lifting frame 100, typically using a diameter between eight and sixteen millimeters. The stay rope 300 cooperates with the winding device of the second adjusting member 600. The drum surface of the winding device has a groove matching the diameter of the stay rope 300 to ensure that the stay rope 300 is neatly arranged during winding.

[0139] In this embodiment, the traction rope 200 and the inclined rope 300 can both be made of steel wire rope, or one of them can be made of steel wire rope and the other can be made of other types of rope, such as synthetic fiber rope.

[0140] In this embodiment, by using a steel wire rope as the traction rope 200, the traction rope 200 exhibits excellent tensile strength and low elongation when subjected to large tension. This ensures that the retraction and extension actions of the first adjusting member 500 on the traction rope 200 can be quickly and accurately transmitted to the lifting frame 100, improving the response speed and accuracy of verticality adjustment. The high wear resistance of the steel wire rope makes it less prone to wear and breakage during frequent contact with pulleys, extending the service life of the traction rope 200, reducing replacement frequency, and lowering maintenance costs.

[0141] In this embodiment, by using a steel wire rope as the stay rope 300, the stay rope 300 maintains good structural stability when subjected to lateral tension over a long period of time, and will not lose pretension due to creep or slack, thus ensuring the long-term reliability of the overturning resistance of the crossing frame. The high breaking tensile strength reserve of the steel wire rope provides sufficient safety margin for the crossing frame under extreme conditions such as strong winds and earthquakes, significantly reducing the safety risk of the frame collapsing due to rope breakage.

[0142] In this embodiment, by simultaneously setting the traction rope 200 and the inclined rope 300 as steel wire ropes, the entire rope system of the crossing frame has uniform material characteristics and maintenance requirements, which simplifies spare parts management and on-site construction process, further improves construction efficiency and system reliability, and effectively solves the technical problems in the background art of poor adjustment accuracy, low construction efficiency and safety hazards.

[0143] In other embodiments, at least one of the first adjusting member 500 and the second adjusting member 600 is an electrically tightening device;

[0144] The control device 800 includes a PID controller and an interface for an electric tensioning device. The PID controller is communicatively connected to the tilt sensor 700 and is used to generate control signals based on the verticality deviation. The interface for the electric tensioning device is electrically connected to the electric tensioning device and is used to transmit control signals.

[0145] In this embodiment, at least one of the first adjusting member 500 and the second adjusting member 600 is an electric tightening device. The electric tightening device can be an electric winch or an electric push rod. The electric winch integrates a reducer and brake, enabling precise rope winding and self-locking. The control device 800 includes a PID controller and an electric tightening device interface. The PID controller is communicatively connected to the tilt sensor 700. The PID controller receives the verticality deviation signal of the lifting frame 100 detected in real time by the tilt sensor 700, compares the verticality deviation signal with a preset target verticality, and generates a control signal through proportional, integral, and derivative operations. The electric tightening device interface is electrically connected to the electric tightening device, used to transmit the control signal generated by the PID controller to the electric tightening device, driving the electric tightening device to perform corresponding tightening or loosening actions. The PID controller can be equipped with a parameter tuning module, allowing construction personnel to adjust the proportional coefficient, integral time, and derivative time according to the site conditions to adapt to the adjustment needs under different load and wind speed conditions. The interface of the electric tightening device can adopt relay output, analog voltage output or PWM pulse output to ensure reliable transmission of control signals.

[0146] In this embodiment, by configuring at least one of the first adjusting member 500 and the second adjusting member 600 as an electric tightening device, and by having the PID controller in the control device 800 generate a control signal based on the verticality deviation of the tilt sensor 700, the electric tightening device is driven to perform the adjustment action via the electric tightening device interface, thus realizing closed-loop automatic control of the verticality of the lifting frame. The PID controller can dynamically adjust the adjustment force according to the magnitude, trend, and cumulative error of the real-time deviation, enabling the verticality of the lifting frame 100 to quickly converge to the target value, avoiding the overshoot and oscillation phenomena commonly found in traditional manual adjustment, and significantly improving the adjustment accuracy and response speed. The electric tightening device interface ensures reliable matching between the control signal and the actuator, reducing signal interference and delay, and improving the overall stability of the system. This automated closed-loop control system completely eliminates the reliance on manual inspection and operation, significantly shortens the adjustment time, reduces the labor intensity and operational risks of construction personnel, and effectively solves the technical problems of poor adjustment accuracy, low construction efficiency, and safety hazards caused by manual adjustment in the background art.

[0147] A second aspect of this application provides a distribution network crossing frame adjustment method based on PID control, applicable to distribution network crossing frames in any of the above embodiments, comprising the following steps:

[0148] The verticality deviation of the lifting frame 100 is detected, and a deviation signal is generated.

[0149] The proportional (P), integral (I), and derivative (D) parameters are calculated based on the deviation signal to generate the control signal.

[0150] The control signal is transmitted to the first adjusting member 500 to adjust the tension of the traction rope 200, or the control signal is transmitted to the second adjusting member 600 to adjust the tension of the inclined rope 300, thereby correcting the verticality of the lifting frame 100.

[0151] In this embodiment, the PID-based distribution network crossing frame adjustment method is applied to the distribution network crossing frame in any of the aforementioned embodiments. The distribution network crossing frame includes an intelligent electrical control box, a tilt sensor 700, inter-pole wire ropes, inclined wire ropes, an electric tensioning device, and multiple electric lifting poles. The intelligent electrical control box, as the core of the control device 800, has a built-in PID controller and an interface for the electric tensioning device. The tilt sensor 700 is installed on each electric lifting pole to detect the verticality of the electric lifting pole in real time. The inter-pole wire ropes are equivalent to the traction ropes 200 in the aforementioned embodiments, and the inclined wire ropes are equivalent to the inclined ropes 300 in the aforementioned embodiments. The electric tensioning device is connected to the inter-pole wire ropes and the inclined wire ropes to perform tightening or loosening actions. The method includes the following steps.

[0152] Step one: Set the proportional, integral, and derivative parameters of the PID controller for the electric tensioning device motor. Construction personnel, based on site conditions such as the height of the lifting mast, wind speed, and load weight, pre-set the proportional coefficient, integral time constant, and derivative time constant through the human-machine interface of the intelligent control box. These parameters determine the PID controller's response characteristics to deviation signals, including response speed, overshoot, and steady-state accuracy.

[0153] Step two, refer to Figure 4 As shown, using the tilt sensor 700 and the tension information of the inclined steel wire rope, the tension information is compared with the desired output value to calculate the deviation value. The tilt sensor 700 collects the tilt angle of the electric lifting rod relative to the direction of gravity in real time, while the tension sensor on the inclined steel wire rope collects the current tension value. The intelligent control box compares the collected tilt angle and tension value with the preset target value to calculate the verticality deviation value and the tension deviation value. The verticality deviation value includes a deviation component in the oxy plane and a deviation component in the oyz plane, denoted as […]. and The oxy plane and the oyz plane are two mutually perpendicular orthogonal planes that together form a three-dimensional coordinate system used to comprehensively describe the tilt state of the lifting boom.

[0154] Step 3, refer to Figure 4As shown, the verticality of the lifting boom is compared with its current position. The intelligent control box obtains the actual axial direction of the lifting boom, where I is the actual axial direction of the lifting boom, and projects the actual axial direction onto the oxy plane and oyz plane respectively to obtain the projection vector. and Project the vector and By comparing with the ideal axial direction, the deviation value in the oxy plane is calculated. and the deviation value in the oyz plane Deviation value and It reflects the degree of tilt of the lifting boom in two orthogonal directions.

[0155] Step four: Calculate the control parameters of the wire rope motor between poles using the PID control formula. The PID control formula is:

[0156]

[0157]

[0158] in, and These represent the output signals of the wire rope control module between poles in the x and y directions, respectively. For the desired target tensile force value, and These are the measured tensile force values ​​in the x and y directions, respectively. and This indicates the tensile force deviation value. and These represent the scaling factors in the x and y directions, respectively. and Let represent the integral coefficients in the x and y directions, respectively. and These represent the differential coefficients in the x and y directions, respectively. The control parameters of the wire rope motor between the poles are calculated using the above formula. These control parameters are converted into pulse signals and transmitted to the encoder and speed detector of the electric tensioning device. The electric tensioning device precisely controls the motor rotation based on the received pulse signals, achieving precise tightening or loosening of the wire rope between the poles.

[0159] Step 5: Calculate the control parameters of the cable-stayed wire rope motor using the PID control formula. The PID control formula is:

[0160]

[0161]

[0162] in, and These represent the output signals of the cable-stayed wire rope control module in the x and y directions, respectively. and These are the perpendicularity deviation values ​​on the oxy plane and the oyz plane, respectively. and These represent the scaling factors in the x and y directions, respectively. and Let represent the integral coefficients in the x and y directions, respectively. and These represent the differential coefficients in the x and y directions, respectively. The control parameters of the cable-stayed wire rope motor are calculated using the above formula. These control parameters are converted into pulse signals and transmitted to the encoder and speed detector of the electric tensioning device. The electric tensioning device precisely controls the motor rotation based on the received pulse signals, achieving precise tightening or loosening of the cable-stayed wire rope.

[0163] During the ascent of the gantry crane, the tension of the stay cables is set to a relatively small value, less than the tension after the crane is fixed, to avoid excessive lateral tension that could cause instability of the lifting pole. Once the crane reaches the required ascent height, the system automatically tightens the inter-pole stay cables and stay cables, bringing the crane into a stable working state. Throughout the adjustment process, the tilt sensor 700 continuously detects and updates the verticality deviation signal. The PID controller continuously adjusts the control parameters based on the updated deviation signal, forming a closed-loop feedback adjustment cycle until the verticality deviation is reduced to within the allowable range.

[0164] In this embodiment, a PID controller is used to calculate proportional, integral, and derivative parameters in real time based on the verticality deviation detected by the tilt sensor 700 and the tension information of the inclined wire rope, and then generate control signals to achieve precise closed-loop adjustment of the tension of the wire rope between the poles and the tension of the inclined wire rope. The proportional term of the PID controller can respond quickly to the current deviation, the integral term can eliminate long-term accumulated static errors, and the derivative term can predict the trend of deviation changes and suppress overshoot in advance. The synergistic effect of the three makes the verticality correction process of the lifting pole both fast and smooth, avoiding the repeated oscillations and adjustment lag problems common in traditional manual adjustment, and significantly improving the adjustment accuracy and response speed.

[0165] In this embodiment, by decomposing the verticality deviation into components in two orthogonal directions, the oxy plane and the oyz plane, and applying independent PID control to the inter-rod wire rope and the inclined wire rope respectively, the adjustment system can comprehensively cover all tilting directions of the lifting mast in three-dimensional space. This dual-channel parallel control strategy ensures that the lifting mast can be accurately identified and effectively corrected regardless of its tilt direction, avoiding the adjustment blind spot caused by single-direction control and significantly improving the attitude control capability of the traverse frame under various complex working conditions.

[0166] In this embodiment, by setting the tension of the inclined steel wire rope to a relatively small value during the ascent of the gantry frame, and automatically tightening the inter-pole steel wire rope and inclined steel wire rope after reaching the target height, a phased control strategy for the lifting process and stable working state is achieved. This phased control method ensures both flexibility and safety during the lifting process, as well as structural stability and anti-overturning capability during the working state, effectively solving the technical problems in the prior art caused by poor adjustment accuracy, low construction efficiency, and safety hazards.

[0167] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0168] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A power distribution network crossing frame, characterized in that, include: A lifting frame (100), wherein there are multiple lifting frames (100), and the multiple lifting frames (100) are respectively located at multiple corners of the reference figure, and the height of the lifting frame (100) is adjustable; The two lifting frames (100) located at both ends of either side of the reference drawing are connected by the traction rope (200); A diagonal cable (300) is used to connect the lifting frame (100) and the support surface; A support net (400) is provided on the top of the lifting frame (100) and is connected to a plurality of the traction ropes (200); The first adjusting member (500) is connected to the traction rope (200) to adjust the tilt angle of the lifting frame (100) by adjusting the tension of the traction rope (200); The second adjusting member (600) is connected to the inclined rope (300) to adjust the tilt angle of the lifting frame (100) by adjusting the tension of the inclined rope (300); An inclination sensor (700) is provided on the lifting frame (100), and the inclination sensor (700) is used to detect the verticality of the lifting frame (100); A control device (800) is electrically connected to the tilt sensor (700), the first adjustment member (500), and the second adjustment member (600), respectively. The control device (800) is configured to control the operating state of the first adjustment member (500) and the second adjustment member (600) based on the detection result of the tilt sensor (700).

2. The distribution network crossing frame according to claim 1, characterized in that, The lifting frame (100) includes multiple nested frames, and the height of the inner frame relative to the outer frame in any two adjacent frames is adjustable.

3. The power distribution network crossing frame according to claim 2, characterized in that, The multiple frames include a first frame (110), a second frame (120), and a third frame (130) nested from the inside out; Each of the frames includes an inner side facing the reference pattern and an outer side facing away from the reference pattern; The top of the first frame (110) is provided with a first top inner pulley (111) located on the inner side and a first top outer pulley (112) located on the outer side; The bottom end of the third frame (130) is provided with a third bottom inner pulley (131) located on the inner side and a third bottom outer pulley (132) located on the outer side; The two ends of the traction rope (200) are respectively wound around the first top inner pulley (111) and the third bottom inner pulley (131) of the two lifting frames (100) and then connected to the first adjusting member (500); The inclined rope (300) passes sequentially around the first top outer pulley (112) and the third bottom outer pulley (132) before connecting to the second adjusting member (600).

4. The distribution network crossing frame according to claim 3, characterized in that, The bottom end of the third frame (130) is provided with a third bottom middle pulley (135) located between the third bottom inner pulley (131) and the third bottom outer pulley (132); The traction rope (200) also extends from below to at least the top of the first frame (110) after passing around the first adjusting member (500) and the third bottom intermediate pulley (135), and connects to the first frame (110).

5. The distribution network crossing frame according to claim 3, characterized in that, The bottom end of the first frame (110) is provided with a first bottom inner pulley (113) located on the inner side and a first bottom outer pulley (114) located on the outer side; The top of the second frame (120) is provided with a second top inner pulley (121) located on the inner side and a second top outer pulley (122) located on the outer side, and the bottom of the second frame (120) is provided with a second bottom inner pulley (123) located on the inner side and a second bottom outer pulley (124) located on the outer side; The top of the third frame (130) is provided with a third top inner pulley (133) located on the inner side and a third top outer pulley (134) located on the outer side; The inclined rope (300) passes through the second adjusting member (600) and then sequentially passes through the third top outer pulley (134), the second bottom outer pulley (124), the second bottom inner pulley (123), and the third top inner pulley (133) before connecting to the top of the first frame (110).

6. The distribution network crossing frame according to claim 5, characterized in that, The lifting frame (100) also includes a connecting rope (900), one end of which is connected to the outer side of the top of the third frame (130), and the other end is connected to the inner side of the top of the third frame (130) after passing through the second top outer pulley (122), the third bottom outer pulley (132), the third bottom inner pulley (131) and the second top inner pulley (121) in sequence.

7. The distribution network crossing frame according to any one of claims 1-6, characterized in that, Either the first adjusting member (500) or the second adjusting member (600) includes: A winding device for winding wire; A winding drive is connected to the winding device to drive the winding device to rotate.

8. The distribution network crossing frame according to any one of claims 1-6, characterized in that, Also includes: A base assembly (1000), wherein there are multiple base assemblies (1000) corresponding to the lifting frame (100). The base assembly (1000) includes: The base (1010) is supported on the lifting frame (100); Diagonal bracing (1020), there are multiple diagonal bracing (1020), the multiple diagonal bracing (1020) are arranged at intervals along the circumference of the lifting frame (100), and the two ends of the diagonal bracing (1020) are respectively connected to the base (1010) and the lifting frame (100).

9. The distribution network crossing frame according to any one of claims 1-6, characterized in that, At least one of the first adjusting member (500) and the second adjusting member (600) is an electrically tightening device; The control device (800) includes: A PID controller, which is communicatively connected to the tilt sensor (700), is used to generate a control signal based on the verticality deviation; An interface for an electric tightening device is electrically connected to the electric tightening device and is used to transmit the control signal.

10. A method for regulating a distribution network crossing frame based on PID control, applied to the distribution network crossing frame according to any one of claims 1-9, characterized in that, Includes the following steps: The verticality deviation of the lifting frame (100) is detected, and a deviation signal is generated; Based on the deviation signal, the proportional (P), integral (I), and derivative (D) parameters are calculated to generate a control signal; The control signal is transmitted to the first adjusting member (500) to adjust the tension of the traction rope (200), or the control signal is transmitted to the second adjusting member (600) to adjust the tension of the inclined rope (300) to correct the verticality of the lifting frame (100).

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