Mountain crossing frame and construction method thereof

Abstract

The invention relates to the technical field of power system overhead lines, and discloses a mountain crossing frame and a construction method thereof.The mountain crossing frame comprises tower erecting systems arranged in a rectangular structure, and a safety net system is arranged between the tower erecting systems; the tower erecting system comprises a foundation base assembly, and a plurality of standard knots and working knots which are arranged on the foundation base assembly. The foundation base assembly comprises a center stand column, limiting structures are arranged on the peripheral side of the center stand column, and the limiting structures make contact with the ground and are matched with the center stand column to form a triangular structure. The bottom of each standard section and the bottom of each working section are each provided with a first connecting structure, and the top of the center stand column and the top of each standard section are each provided with a second connecting structure matched with the corresponding first connecting structure. Pull rope fixing lugs and monitoring assemblies for monitoring pull force on the pull rope fixing lugs are arranged on the working sections and part of the standard sections; the device has the advantages of being good in terrain adaptability, high in installation efficiency, good in stability and abundant in safety protection.

Description

TECHNICAL FIELD

[0001] The present application relates to a mountain crossing frame and its construction method, belonging to the technical field of overhead line of power system. BACKGROUND

[0002] In the construction of mountain transmission line, the crossing frame is an important auxiliary facility, which is mainly used for crossing various obstacles in the construction process of transmission line to ensure the safety of construction and the smooth erection of line. At present, when crossing overhead line, it is often necessary to temporarily set up a crossing operation frame, which is to set up a bamboo or steel pipe scaffold and use hard objects to set up a bridge type crossing frame, which consumes a lot of materials and time, and has great work risk, which is easy to cause personal injury and often damages the line.

[0003] Therefore, in the prior art, the patent for invention with the patent application number CN202010675167.3 discloses a transmission line crossing frame, which includes a base, a main column and a crossing frame, and the support structure provided by the application can adjust the height of the entire transmission line crossing frame by adjusting the length of itself, so that it is not necessary to set up a bamboo or steel pipe scaffold structure when setting up the crossing frame, which has the advantages of reducing work risk and shortening construction time. However, the following problems still exist in actual use: 1. Poor terrain adaptability: it needs to rely on large machinery such as engineering vehicles for transportation, but most large machinery cannot reach the rugged terrain in mountainous areas, which requires a large amount of manual labor to transport.

[0004] 2. Low installation efficiency: the integral structure needs to be assembled piece by piece, and lacks standardized connecting parts, which results in a long installation time.

[0005] 3. Insufficient stability: the foundation treatment is simple, and when the tower height exceeds 20 meters, it is easy to be affected by wind and appear inclined and other phenomena.

[0006] 4. Weak safety protection: it lacks real-time monitoring devices, and cannot timely alarm when the tower is inclined or the rope is loose, which has construction safety hazards. SUMMARY

[0007] In order to solve the above problems existing in the prior art, the present application provides a mountain crossing frame and its construction method.

[0008] The technical scheme of the present application is as follows: In a first aspect, the present invention provides a mountain crossing frame, comprising a tower system arranged in a rectangular structure, with a safety net system between the tower systems. The tower system includes a foundation base assembly, several standard sections arranged vertically in sequence on the foundation base assembly, and a working section on the topmost standard section. The foundation base assembly includes a central column, with limiting structures on its periphery, the limiting structures contacting the ground and forming a triangular structure with the central column. A first connecting structure is provided at the bottom of each standard section and the bottom of each working section, and a second connecting structure matching the first connecting structure is provided at the top of the central column and the top of each standard section. The bottommost standard section is connected to the central column, adjacent standard sections are connected, and the topmost standard section is connected to the working section by the matching of the first and second connecting structures at corresponding positions. The working section and some standard sections are provided with rope fixing lugs and monitoring components for monitoring the tension on the rope fixing lugs.

[0009] Furthermore, the first connecting structure includes several fixing slots and positioning holes, and the second connecting structure includes a wing nut that corresponds one-to-one with the number and position of the fixing slots and a guide pin that corresponds one-to-one with the number and position of the positioning holes. The wing nut is flipped and mounted on the standard section and the central column by a hinge shaft. The wing nut is positioned such that after it is flipped to a vertical state, it can enter the fixing slot from the slot opening and its wing-shaped part is above the fixing slot. When the first connecting structure and the second connecting structure are matched and connected, the wing nut flips and enters the corresponding fixing slot, and the guide pin is inserted into the corresponding positioning hole.

[0010] Furthermore, the limiting structure includes pressure plates on the side walls of the central column. The end of each pressure plate close to the central column is rotatably connected to the central column via a first rotating seat so that it can be flipped on the central column. The end of each pressure plate away from the central column is rotatably connected to one end of a connecting rod via a second rotating seat. The other end of the connecting rod has a pin hole. The side walls of the central column are provided with pin fixing seats that correspond one-to-one with the connecting rods. The connecting rod is connected to the pin fixing seat through the pin hole and then passes through the pin body to fix its own posture.

[0011] Furthermore, the monitoring component includes a strain gauge and a signal control box. The strain gauge is fixedly installed on the pull rope fixing lug, and the signal control box is electrically connected to the strain gauge. The signal control box acquires the changing posture of the strain gauge, calculates the tension value on the pull rope fixing lug in real time, and feeds this value back to the remote operation center.

[0012] Furthermore, the monitoring component also includes a battery, which is configured in a one-to-one correspondence with the signal control box, and the battery supplies power to the corresponding signal control box.

[0013] Furthermore, the working section is also equipped with a first pressure roller group and a second pressure roller group arranged vertically. The first pressure roller group is located below the second pressure roller group. The safety net system includes a safety net body and load-bearing ropes distributed laterally on both sides of the safety net body. The safety net body is hung between the load-bearing ropes on both sides. The load-bearing ropes on both sides are arranged to pass through the first pressure roller group in the corresponding position of the tower system to realize the placement of the safety net body between the tower systems.

[0014] Furthermore, the safety net system also includes symmetrically arranged guy wires, with both guy wires arranged longitudinally and both guy wires passing through the second pressure roller group in the corresponding tower system.

[0015] Furthermore, ladders are provided on the working section and each standard section.

[0016] Furthermore, a pre-embedded fixing plate is also provided at the bottom of the central column.

[0017] Secondly, the present invention provides a construction method for the aforementioned mountain crossing frame, comprising the following steps: Step 1: Pre-construction preparation; Based on design requirements, prepare the corresponding number of safety net systems, foundation base components, standard sections, working sections, and monitoring components. Some standard sections have rope fixing lugs. Step 2: Fixing the foundation base assembly; excavate the foundation pit according to the design requirements, then put the foundation base assembly into the foundation pit, ensure that the central column is set vertically to the ground, and then backfill the foundation pit. Then, use the limiting structure to form a triangular structure with the central column and the ground to fix the central column. Step 3: Hoisting of standard sections; standard sections are hoisted vertically step by step using drones. Adjacent standard sections and the bottom standard section are connected to the central column through the matching of the first and second connecting structures at the corresponding positions. Step 4: Lifting of the working section; Using a drone, the working section is lifted onto the standard section at the top. The working section and the standard section are connected by matching the first and second connecting structures at corresponding positions. Step 5: Deployment of the safety net system; Install the safety net system between the constructed rectangular tower systems, ensuring that one tower system corresponds to one vertex of the safety net system. Step 6: Installation of monitoring components; Install the monitoring components on each rope fixing lug and test the working status of the monitoring components to ensure that they are working properly.

[0018] The present invention has the following beneficial effects: This invention provides a mountain crossing frame by adopting a segmented structure for the tower system, consisting of a foundation base assembly, several standard sections, and working sections. This modular design allows the frame to be transported manually, by drone, or using climbing vines, eliminating the need for heavy machinery. The first and second connecting structures standardize the connecting components between the foundation base assembly, standard sections, and working sections, eliminating the need for specialized connecting tools and shortening installation time. The foundation base assembly, with its limiting structure, forms a stable triangular structure with the ground, significantly improving the tower system's anti-overturning capability and preventing tilting due to wind. The monitoring components monitor the tension on the guy rope fixing lugs in real time, providing timely warnings in case of tower tilting or guy rope loosening. Compared to existing technologies, this invention offers advantages such as good terrain adaptability, high installation efficiency, good stability, and ample safety protection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the mountain crossing frame structure in this invention; Figure 2 This is a schematic diagram of the foundation base assembly in this invention; Figure 3 This is a schematic diagram of the standard section in this invention; Figure 4 This is a schematic diagram of the working section in this invention; Figure 5 This is a partial structural diagram of the safety net system during deployment in this invention; Figure 6 for Figure 3 Enlarged view of point A in the image; Figure 7 for Figure 3 Enlarged view of point B in the image.

[0020] The reference numerals in the figure are as follows: 1. Tower system; 12. Standard section; 13. Working section; 11. Foundation base assembly; 111. Central column; 112. Embedded fixing plate; 2. Safety net system; 21. Safety net body; 22. Load-bearing rope; 23. Guy wire; 3. Limiting structure; 31. Pressure plate; 32. First rotating seat; 33. Second rotating seat; 34. Connecting rod; 35. Pin fixing seat; 36. Pin body; 4. First connecting structure; 41. Fixing groove; 42. Positioning hole; 5. Second connecting structure; 51. Hinge shaft; 52. Butterfly nut; 53. Guide pin; 54. Butterfly part; 6. Secure the ear with the pull rope; 7. Monitoring components; 71. Strain gauges; 72. Signal control box; 73. Battery 8. First pressure roller assembly; 9. Second pressure roller assembly; 10. Ladder; a. Pull rope body; b. Ram's horn; c. Roller; d. Traction rope. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0022] Example: Please refer to Figures 1-7 This embodiment provides a mountain crossing frame and its construction method. The mountain crossing frame provided in this embodiment includes four tower systems 1 arranged in a rectangular structure, with a safety net system 2 connecting the four tower systems 1. In actual use, the specific number and distribution of the tower systems 1 can be selected and configured according to the actual situation.

[0023] In this embodiment, the tower erection system 1 includes a foundation base assembly 11, several standard sections 12 arranged vertically in sequence on the foundation base assembly 11, and a working section 13 arranged on the topmost standard section 12. The specific number and length of the standard sections 12 can be selected according to actual needs and are not limited here. Both the standard sections 12 and the working section 13 are arranged in a rectangular column structure, and the length of the working section 13 is less than the length of the standard section 12.

[0024] In this embodiment, the foundation base assembly 11 includes a central column 111 arranged in a rectangular column structure. Limiting structures 3 are provided on the peripheral sidewalls of the central column 111. When the limiting structures 3 contact the ground, they cooperate with the central column 111 to form a triangular structure, thereby providing good support for the central column 111 and improving the overturning resistance of the tower system 1. Specifically, the limiting structures 3 include pressure plates 31 on each sidewall of the central column 111. The end of each pressure plate 31 closest to the central column 111 is rotatably connected to the corresponding side of the central column 111 via a first rotating seat 32, allowing it to rotate up and down on the central column 111. On the top surface of the end of each pressure plate 31 away from the central column 111, one end of a connecting rod 34 is rotatably connected via a second rotating seat 33. The other end of the connecting rod 34 has a pin hole. Each of the peripheral side walls of the column 111 is provided with a pin fixing seat 35 that corresponds one-to-one with the connecting rod 34. The connecting rod 34 is connected to the pin fixing seat 35 through the pin hole and then passes through the pin hole and the pin fixing seat 35 to achieve its own posture fixed on the central column 111. This prevents the pressure plate 31 from performing the corresponding flipping action and will also be fixed together with the central column 111 along with the connecting rod 34, so as to ensure that the limiting structure 3 can provide sufficient support for the central column 111 in the future.

[0025] Each standard section 12 and the working section 13 are provided with a first connecting structure 4 at the bottom. The central column 111 and each standard section 12 are provided with a second connecting structure 5 that matches the first connecting structure 4. The bottom standard section 12 and the central column 111, adjacent standard sections 12, and the top standard section 12 and the working section 13 are all connected together by the matching of the first connecting structure 4 and the second connecting structure 5 at corresponding positions.

[0026] In this embodiment, the first connecting structure 4 includes a plurality of fixing slots 41 and positioning holes 42. The specific number and distribution of fixing slots 41 and positioning holes 42 on the standard section 12 and the working section 13 can be selected and set according to the actual situation. For example, two fixing slots 41 can be symmetrically arranged on each side of the standard section 12 and the working section 13, and the positioning holes 42 can be arranged between the two fixing slots 41 on the same side. Other numbers and distributions are also possible and are not limited here. The second connecting structure 5 includes a wing nut 52 arranged in a one-to-one correspondence with the number and position of the fixing slots 41 and a guide pin 53 arranged in a one-to-one correspondence with the number and position of the positioning holes 42. The wing nut 52 is flipped and set on the standard section 12 and the central column 111 by a hinge shaft 51. The hinge shaft 51 ensures that the wing nut 52 is stable in both vertical and horizontal states. The wing nut 52 is designed so that, after being flipped to a vertical position, it can enter the fixing groove 41 from the opening of the fixing groove 41, and its wing-shaped part 54 is positioned above the fixing groove 41 in the first connecting structure 4 that matches the second connecting structure 5. The wing-shaped part 54 of the wing nut 52 cannot pass through the corresponding fixing groove 41. When the first connecting structure 4 and the second connecting structure 5 are matched and connected, the wing nut 52 is flipped into the corresponding fixing groove 41, and the guide pin 53 is inserted into the corresponding positioning hole 42. The guide pin 53 is designed so that it cannot move left or right when inserted into the positioning hole 42. The design of the first connecting structure 4 and the second connecting structure 5 can standardize the connecting parts required between the foundation base assembly 11, several standard sections 12 and working sections 13, so that no special connecting tools are needed. During connection, only the guide pin 53 needs to be inserted into the positioning hole 42, and then the wing nut 52 is flipped into the corresponding fixing groove 41 to complete the required matching connection, which can greatly shorten the installation time.

[0027] Both the working section 13 and some standard sections 12 are equipped with rope fixing lugs 6 and monitoring components 7 for monitoring the tension on the rope fixing lugs 6. The selection of which standard sections 12 have rope fixing lugs 6 can be based on actual conditions. In most cases, standard sections 12 at higher positions need to have their rope bodies a secured; therefore, standard sections 12 with rope fixing lugs 6 are often selected from those at higher positions. For example, based on the ground, standard sections 12 at approximately every 12 meters are typically equipped with rope fixing lugs 6.

[0028] In this embodiment, the monitoring component 7 includes a strain gauge 71, a signal control box 72, and a battery 73. The strain gauge 71 is fixedly mounted on the pull rope fixing lug 6. The signal control box 72 is positioned correspondingly to the strain gauge 71 and is installed on the side wall of the standard section 12 and the working section 13 at the corresponding positions. The signal control box 72 is electrically connected to the strain gauge 71. The signal control box 72 acquires the changing posture of the strain gauge 71, calculates the tension value on the pull rope fixing lug 6 in real time, and feeds this value back to the remote operation center. The battery 73 is positioned correspondingly to the signal control box 72 and supplies power to the corresponding signal control box 72. In actual use, the signal control box 72 can be flipped on the standard section 12 and the working section 13 so that its signal direction can be turned downwards when needed, thereby achieving rain and sun protection.

[0029] The working section 13 is also equipped with a first pressure roller group 8 and a second pressure roller group 9 arranged vertically. The first pressure roller group 8 is located below the second pressure roller group 9, and the inlet and outlet directions of the first pressure roller group 8 are perpendicular to the inlet and outlet directions of the second pressure roller group 9. The safety net system 2 includes a safety net body 21, load-bearing ropes 22 arranged symmetrically on the upper and lower sides of the safety net body 21, and guy lines 23 arranged symmetrically on the left and right sides of the safety net body 21. The safety net body 21 is hung between the load-bearing ropes 22 on both sides. The load-bearing ropes 22 on both sides are arranged to pass through the first pressure roller group 8 in the corresponding tower system 1 to realize the placement of the safety net body 21 between the tower systems 1. The guy lines 23 on both sides are arranged to pass through the second pressure roller group 9 in the corresponding tower system 1 to connect the tower systems 1 at the corresponding positions, thereby strengthening the overall structural stability of the mountain crossing frame.

[0030] To facilitate construction workers in carrying out related construction operations such as hanging ropes, in this embodiment, both the working section 13 and each standard section 12 are equipped with ladders 10 for construction workers to climb.

[0031] To further enhance the stability of the foundation base assembly 11 when connected to the ground, in this embodiment, a pre-embedded fixing plate 112 is also fixedly installed at the bottom of the central column 111. The projected area of ​​the pre-embedded fixing plate 112 is larger than that of the central column 111. The pre-embedded fixing plate 112 can be pre-embedded in the ground, thereby improving the stability of the entire foundation base assembly 11 connected to the ground by strengthening the connection between the central column 111 and the ground.

[0032] The construction method of a mountain crossing frame provided in this embodiment includes using the aforementioned mountain crossing frame, and also includes the following steps: Step 1: Pre-construction preparation; According to the design requirements, prepare the corresponding number of safety net system 2, foundation base component 11, standard section 12, working section 13 and monitoring component 7. Some standard sections 12 have rope fixing ears 6 so that the rope body a can be used to fix the completed tower system 1.

[0033] Step 2: Fixing the foundation base assembly 11; According to design requirements, excavate four foundation pits two meters deep at the corresponding locations. Then, place the foundation base assembly 11 into the pits, ensuring the central column 111 is perpendicular to the ground, and backfill the pits. This ensures the pre-embedded fixing plate 112 is buried in the pit while the limiting structure 3 is not. Then, using the limiting structure 3 in conjunction with the central column 111 and the ground to form a triangular structure, the central column 111 is fixed. The specific method for fixing the central column 111 to the limiting structure 3 is as follows: the pressure plate 31 of each limiting structure 3 is flipped downwards to press it tightly against the ground. Then, the end of the connecting rod 34 with the pin hole is connected into the pin fixing seat 35, and the pin body 36 is inserted into the pin hole and the pin fixing seat 35, so that the connecting rod 34 and the pressure plate 31 are fixed together with the central column 111 to ensure that the connecting rod 34 and the pressure plate 31 will not change their own posture. At this time, the connecting rod 34 and the pressure plate 31, together with the ground, can form a triangular support structure with good stability for the central column 111. Each limiting structure 3 on each side forms a similar support structure, which can provide all-round support for the central column 111, thereby greatly improving the overturning resistance of the tower system 1.

[0034] Step 3: Lifting of Standard Section 12; Standard section 12 is lifted vertically step by step using a drone. The specific lifting sequence of standard sections 12 is based on the actual design standards to ensure that the standard section 12 with the rope fixing lug 6 is in the required position. Adjacent standard sections 12 and the bottom standard section 12 are connected to the central column 111 through the matching of the first connecting structure 4 and the second connecting structure 5 at corresponding positions. The specific method for matching the first connecting structure 4 and the second connecting structure 5 is as follows: the guide insert in the second connecting structure 5... Pin 53 corresponds to the positioning hole 42 in the first connecting structure 4. Then, the standard section 12 is hoisted on, and the wing nut 52 is flipped to enter the fixing groove 41 in the first connecting structure 4. At this time, the positioning hole 42 and the guide pin 53 can restrict the left and right displacement of the connected components, namely the adjacent standard section 12, the bottom standard section 12, and the central column 111. The wing nut 52 and the fixing groove 41 can restrict the up and down displacement of the connected components. This can effectively complete the connection of the corresponding connected components. During the hoisting of the standard section 12, when the standard section 12 with the rope fixing lug 6 is hoisted, the rope body a is connected to the rope fixing lug 6 and the bottom end of the rope body a is fixed to the design anchor point on the ground.

[0035] Step 4: Hoisting of Working Section 13; Using a drone, working section 13 is hoisted onto the top standard section 12. Working section 13 and standard section 12 are connected by the matching of the first connecting structure 4 and the second connecting structure 5 at corresponding positions. The specific connection method is similar to that in step 3, and will not be repeated here. After the working section 13 is hoisted, the tower erection system 1 is completed.

[0036] Step 5: Deployment of Safety Net System 2; Install Safety Net System 2 between the rectangularly distributed tower systems 1, ensuring that one apex of Safety Net System 2 corresponds to one tower system 1. The specific installation method is as follows: First, lay guy lines 23 between the top working sections 13 of adjacent tower systems 1 arranged longitudinally. Guy lines 23 are delivered to their respective positions using a drone. Construction workers then pass both ends of the guy lines 23 through the corresponding second pressure roller group 9 and fix them to the ground. Horns (b) can be installed on the top working section 13 to align the guy lines 23 as needed. Rollers (c) can be installed on the line segment between the two working sections 13 at the corresponding positions of the guy lines 23 to facilitate necessary transmission. Next, load-bearing ropes 22 are strung between the top working sections 13 of the adjacent horizontally arranged tower systems 1. These load-bearing ropes 22 are also delivered to their respective positions using drones. Construction workers pass both ends of the load-bearing ropes 22 through the corresponding first pressure roller group 8 and fix them to the ground. Then, using a drone, the safety net body 21 is delivered to the required position. Construction workers suspend the safety net body 21 between the two load-bearing ropes 22. Then, using the traction rope d installed on the safety net body 21, the safety net body 21 is unfolded between the two load-bearing ropes 22 to ensure that the coverage area meets the design requirements. After unfolding, the bottom end of the traction rope d is fixed to the ground.

[0037] Step 6: Installation of Monitoring Component 7; Construction personnel install strain gauges 71 on each rope fixing lug 6, and install signal control boxes 72 and batteries 73 on the corresponding standard section 12 and working section 13. This step can also be performed during the hoisting of standard section 12 and working section 13. Afterwards, electrically connect the strain gauges 71, signal control boxes 72, and batteries 73 at the corresponding positions, and test the working status of the strain gauges 71 and signal control boxes 72. If possible, perform simulated stress tests to ensure they function normally. At this point, the construction is complete.

[0038] In practical applications, the following structural alternatives can also be made.

[0039] 1. Foundation-fixed alternative: (1) The use of helical pile foundation to replace the pre-embedded foundation pit is suitable for terrain with shallow rock layer; (2) The material of the pressure plate 31 can be replaced with high-strength composite material, such as fiber reinforced composite material, while maintaining the compressive strength.

[0040] 2. Alternative connection methods: (1) An electromagnetic adsorption device can be used to replace the first connection structure 4 and the second connection structure 5, which can further realize rapid docking and separation; (2) A hydraulic locking mechanism can be used on the rope fixing ear 6 to replace manual fastening and adapt to high-altitude remote operation.

[0041] 3. Alternatives for transportation and hoisting: (1) A cableway transportation system can be used to replace drones, which is suitable for long-distance mountain transportation standard section 12; (2) A small winch can be integrated on the working section 13 to enable the standard section 12 to be lifted autonomously, reducing reliance on drones.

[0042] 4. Monitoring system replacement: (1) A Beidou positioning module can be used to replace strain gauge 71 to monitor the tilt state by changing the position of the top of the opposing tower system 1; (2) A video monitoring module can be added to transmit the status of tower system 1 and safety net system 2 in real time to assist remote decision-making.

[0043] 5. Safety net deployment replacement: (1) Inflatable safety nets can be used to replace traditional woven nets. They can be quickly deployed by air pressure and are suitable for emergency repair scenarios. (2) A self-tensioning device can be installed on the load-bearing rope 22 to automatically adjust the tightness of the safety net body 21 to adapt to different span requirements.

[0044] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A mountain crossing frame, comprising a tower system (1) arranged in a rectangular structure, wherein a safety net system (2) is provided between the tower systems (1), characterized in that: The tower system (1) includes a foundation base assembly (11), several standard sections (12) arranged in sequence along the vertical direction on the foundation base assembly (11), and a working section (13) arranged on the topmost standard section (12). Among them, the foundation base assembly (11) includes a central column (111), and a limiting structure (3) is provided on the periphery of the central column (111). The limiting structure (3) contacts the ground and cooperates with the central column (111) to form a triangular structure. Each standard section (12) and the bottom of the working section (13) are provided with a first connecting structure (4), and the top of the central column (111) and the top of each standard section (12) are provided with a second connecting structure (5) that matches the first connecting structure (4). The bottom standard section (12) and the central column (111), the adjacent standard sections (12) and the top standard section (12) and the working section (13) are connected together by the matching of the first connecting structure (4) and the second connecting structure (5) at the corresponding positions. Both the working section (13) and some standard sections (12) are equipped with rope fixing ears (6) and monitoring components (7) for monitoring the tension on the rope fixing ears (6).

2. The mountain crossing frame according to claim 1, characterized in that: The first connecting structure (4) includes several fixing slots (41) and positioning holes (42). The second connecting structure (5) includes a butterfly nut (52) that corresponds one-to-one with the number and position of the fixing slots (41) and a guide pin (53) that corresponds one-to-one with the number and position of the positioning holes (42). The butterfly nut (52) is flipped and set on the standard section (12) and the central column (111) by setting a hinge shaft (51). The butterfly nut (52) is set to satisfy that after it is flipped to a vertical state, it can enter the fixing slot (41) from the slot opening of the fixing slot (41) and its butterfly part (54) is above the fixing slot (41). When the first connecting structure (4) and the second connecting structure (5) are matched and connected, the butterfly nut (52) is flipped into the corresponding fixing slot (41) and the guide pin (53) is inserted into the corresponding positioning hole (42).

3. The mountain crossing frame according to claim 1, characterized in that: The limiting structure (3) includes pressure plates (31) provided on the side walls of the central column (111). The end of each pressure plate (31) close to the central column (111) is rotatably connected to the central column (111) by a first rotating seat (32) so that it can be flipped on the central column (111). The end of each pressure plate (31) away from the central column (111) is rotatably connected to one end of a connecting rod (34) by a second rotating seat (33). The other end of the connecting rod (34) is provided with a pin hole. The side walls of the central column (111) are provided with pin fixing seats (35) that correspond one-to-one with the connecting rod (34). The connecting rod (34) is connected into the pin fixing seat (35) through the pin hole and then passes into the pin body (36) to fix its own posture.

4. A mountain crossing frame according to claim 1, characterized in that: The monitoring component (7) includes a strain gauge (71) and a signal control box (72). The strain gauge (71) is fixedly installed on the pull rope fixing ear (6). The signal control box (72) is electrically connected to the strain gauge (71). The signal control box (72) acquires the changing posture of the strain gauge (71), calculates the tension value on the pull rope fixing ear (6) in real time, and feeds this value back to the remote operation center.

5. A mountain crossing frame according to claim 4, characterized in that: The monitoring component (7) also includes a battery (73), which is configured in a one-to-one correspondence with the signal control box (72), and the battery (73) supplies power to the corresponding signal control box (72).

6. A mountain crossing frame according to claim 1, characterized in that: The working section (13) is also provided with a first pressure roller group (8) and a second pressure roller group (9) arranged vertically. The first pressure roller group (8) is located below the second pressure roller group (9). The safety net system (2) includes a safety net body (21) and load-bearing ropes (22) arranged laterally on both sides of the safety net body (21). The safety net body (21) is hung between the load-bearing ropes (22) on both sides. The load-bearing ropes (22) on both sides are arranged to pass through the first pressure roller group (8) in the corresponding tower system (1) to realize the placement of the safety net body (21) between the tower systems (1).

7. A mountain crossing frame according to claim 6, characterized in that: The safety net system (2) also includes symmetrically arranged guy wires (23), both guy wires (23) are arranged longitudinally, and both guy wires (23) are arranged to pass through the second pressure roller group (9) in the corresponding tower system (1).

8. A mountain crossing frame according to claim 1, characterized in that: Ladders (10) are provided on each working section (13) and each standard section (12).

9. A mountain crossing frame according to claim 1, characterized in that: The bottom of the central column (111) is also provided with a pre-embedded fixing plate (112).

10. A construction method for a mountain crossing frame as described in any one of claims 1 to 9, characterized in that: Includes the following steps: Step A1: Pre-construction preparation; according to the design requirements, prepare the corresponding number of safety net systems (2), foundation base components (11), standard sections (12), working sections (13) and monitoring components (7), some standard sections (12) have rope fixing lugs (6); Step A2: Fixing the foundation base assembly (11); excavate the foundation pit according to the design requirements, then put the foundation base assembly (11) into the foundation pit, ensure that the central column (111) is set vertically to the ground, and then backfill the foundation pit. Then, use the limiting structure (3) to cooperate with the central column (111) and the ground to form a triangular structure to fix the central column (111). Step A3: Lifting of standard section (12); The standard section (12) is lifted vertically step by step with the help of a drone. The adjacent standard sections (12) and the bottom standard section (12) are connected to the central column (111) through the matching of the first connecting structure (4) and the second connecting structure (5) at the corresponding positions. Step A4: Lifting of the working section (13); The working section (13) is lifted onto the standard section (12) at the top using a drone. The working section (13) and the standard section (12) are connected by the matching of the first connecting structure (4) and the second connecting structure (5) at the corresponding positions. Step A5: Deployment of the safety net system (2); Install the safety net system (2) between the tower systems (1) that are distributed in a rectangular structure, so that one vertex of the safety net system (2) corresponds to one tower system (1). Step A6: Installation of monitoring components (7); Install monitoring components (7) on each rope fixing lug (6) and test the working status of monitoring components (7) to ensure that they can work properly.

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