Cable-stayed bridge cable conduit positioning precision inspection device

Abstract

This invention proposes a device for testing the positioning accuracy of cable-stayed bridge ducts, specifically relating to the field of cable-stayed bridge technology. It includes two identical half-gears, a first and a second, a first bracket connected to one side of the half-gear, a second bracket connected to the side of the second half-gear, a rotating structure movably connected to both half-gears, and a detection component for detecting the inclination of the cable. Half-gears one and two are detachably connected and cover the outer top of the cable duct. The upper end of the first bracket is connected to a first drone, and the upper end of the second bracket is connected to a second drone. The structures of the first and second brackets are identical. The cable-stayed bridge cable duct positioning accuracy testing device provided by this invention can directly inspect the deviation between the centerline of the cable duct at the beam end and the centerline of the branch wire tube at the tower end, and can adjust the inclination of the cable duct, offering multi-functional technical benefits.

Description

Technical Field

[0001] This invention belongs to the field of cable-stayed bridge technology, specifically relating to a device for testing the positioning accuracy of cable guide tubes in cable-stayed bridges. Background Technology

[0002] A cable-stayed bridge, also known as a skeletal bridge, is a type of bridge where the main girder is directly supported by numerous cables to the bridge towers. It is a structural system composed of compression-bearing towers, tension-bearing cables, and bending-bearing beams. It can be viewed as a multi-span elastically supported continuous beam where cables replace piers. A cable-stayed bridge mainly consists of towers, main girders, and stay cables. The stay cables are the link between the main towers and the main girder, while the cable guides are important components that anchor the two ends of the cables to the main towers and the main girder respectively. In order to prevent the cables from being damaged by friction with the cable guide openings, which would affect the quality of the project, and to ensure that the stay cables on both sides of the symmetrical main towers are located on the same design plane, and to prevent the additional bending moment caused by anchorage eccentricity from exceeding the design allowable value, very high precision requirements are placed on the three-dimensional spatial coordinate positions of the center of the cable guide anchor plate and the center of the outer sleeve of the tower wall.

[0003] The typical installation process for stay cables is as follows: laying out the spatial position of the stay cable on the rigid frame – installing the stay cable – rough positioning of the stay cable – fine adjustment of the stay cable – welding and reinforcement of the stay cable – final inspection before pouring the stay cable concrete. The anchor points of the stay cables are on the anchor plates. A center point locator is fabricated and installed; it is a key piece of equipment for measurement and positioning. Using the center point locator, the center point of the space between the upper and lower openings of the stay cable is found, and then this center point is fixedly connected to the stay cable.

[0004] In the construction of cable-stayed bridges, the accuracy of the positioning of the cable guide duct at the beam end is crucial to the successful cable hanging later on, making it one of the key points of construction control. If the cable is improperly installed, resulting in the cable being too close to the duct, friction between the cable and the duct wall is highly likely, causing damage and affecting its service life. Currently, the cable guide duct is positioned using a total station. While the total station has sufficient positioning accuracy, it cannot visually verify whether the deviation between the centerline of the cable guide duct at the beam end and the centerline of the branch wire tube at the tower end meets the construction requirements, thus failing to guarantee successful cable hanging later. Therefore, this proposal suggests a cable-stayed bridge cable guide duct positioning accuracy testing device to visually verify whether the deviation between the centerline of the cable guide duct at the beam end and the centerline of the branch wire tube at the tower end meets the construction requirements. Summary of the Invention

[0005] The purpose of this invention is to provide a device for inspecting the positioning accuracy of cable-stayed bridge cable guide tubes, which solves the technical problem of how to intuitively inspect the deviation between the center lines of the cable guide tubes at the beam end and the branch wire tubes at the tower end, and realizes the adjustment of the inclination of the cable guide tubes, thus having a multi-functional technical effect.

[0006] A device for testing the positioning accuracy of a cable-stayed bridge cable guide tube includes two identical half-gears, a bracket one connected to one side of the half-gears, a bracket two connected to the side of the half-gears, a rotating structure movably connected to the half-gears, and a detection component for detecting the inclination of the cable. The detection component is disposed on the rotating structure. The half-gears are separable and can be connected to form a cylindrical gear structure. The half-gears cover the outer top of the cable guide tube.

[0007] The upper end of bracket one is connected to drone one, and the upper end of bracket two is connected to drone two. The structures of bracket one and bracket two are identical.

[0008] The detection assembly includes a locking block with an opening slot on its outer side, a movable column with one end perpendicularly connected to the locking block, a spring sleeved on the outer side of the movable column, a push plate slidably connected to the other end of the movable column, a pressure sensor disposed on one side of the push plate, and a telescopic cylinder perpendicularly connected to the other side of the push plate. The other end of the movable column passes horizontally through the push plate and is provided with a baffle. The spring is disposed between the locking block and the push plate.

[0009] The pressure sensor is disposed between the push plate and the locking block, and the telescopic cylinder is horizontally fixed on the rotary structure;

[0010] The detection component is also connected to an inclination detection component for detecting the inclination of the cable-stayed bridge.

[0011] The rotary structure includes a horizontally arranged drive gear, a motor coaxially connected to the drive gear, and a rotary frame. The drive gear passes through the central shaft of the drive gear and is rotatably connected to the rotary frame. The motor is mounted on the rotary frame. The drive gear meshes with the outer sides of the first half gear and the second half gear.

[0012] The bracket includes a positioning rod with one end perpendicularly connected to the outer side of the half gear, a movable rod with one end hinged to the side of the positioning rod, and an electric push rod connected to the other end of the positioning rod. The bottom end of the electric push rod is hinged to the positioning rod, the telescopic end of the electric push rod is hinged to the side of the movable rod, and the top end of the movable rod is connected to the UAV.

[0013] The function of the electric actuator is to adjust the angle between the positioning rod and the movable rod according to the actual situation, so as to ensure the stability of the drone's operation.

[0014] The cable guide tube includes a short tube and a plurality of fixed posts arranged in a ring array on the top surface of the short tube. The central axis of the fixed posts is parallel to the central axis of the short tube. An adjusting post is coaxially arranged at the bottom end of the fixed post, and the adjusting post is embedded in a blind hole provided at the top of the short tube.

[0015] A gap is provided between two adjacent fixed columns.

[0016] The limiting structure includes a fixed seat located below the positioning rod, a telescopic cylinder II passing vertically through the fixed seat, a semicircular plate located on the telescopic cylinder II, and a plurality of limiting plates arranged in a ring array vertically on the inner side of the semicircular plate. The telescopic end of the telescopic cylinder II is vertically connected to the outer side of the semicircular plate, and a fixing post is engaged between two adjacent limiting plates.

[0017] The support structure includes arc-shaped rods respectively disposed on both sides of the positioning rod. The center of the arc of the arc-shaped rod is located at the center of the cylindrical gear structure. One end of the arc-shaped rod is vertically connected to one side of the positioning rod, and the other end is engaged with one end of the other arc-shaped rod.

[0018] The pressure sensor is connected to the host computer.

[0019] The upper end faces of the first and second half-gears are respectively provided with disc-shaped scale lines.

[0020] The inclination detection component includes a plurality of conductive plates arranged from top to bottom on the inner side of the card block, a plurality of indicator lights arranged from top to bottom on the outer side of the rotary frame, and a power supply. The plurality of conductive plates correspond to the plurality of indicator lights and form a parallel circuit. The length of the plurality of conductive plates is equal to the length of the plurality of indicator lights.

[0021] The positive effects of this invention are as follows:

[0022] (1) This solution includes a rotating structure and a detection component, which work together to achieve the following technical effects:

[0023] First, the detection component includes a clamp and a pressure sensor. At this time, the opening slot on the outside of the clamp is clamped on the outside of the cable. The slewing frame rotates once under the action of the drive gear and the motor. The clamp squeezes the pressure sensor, and the pressure sensor uploads the signal to the host computer. People can then observe whether the force on each part is consistent.

[0024] Secondly, under the action of the telescopic cylinder one, the locking block is pushed, thereby generating a counterforce on the rotating frame. The counterforce acts on the fixed column through half gear one and half gear two, realizing the bending treatment of the fixed column, which helps to adjust the fixed column at any tilt angle in the future.

[0025] (2) The cable conduit set in this scheme is an improvement on the existing cable conduit. On the one hand, it can be used when the main beam height is small, that is, a fixed connection can be achieved by using a short tube; on the other hand, when the main beam height is large, several fixed columns can be connected to the short tube, and the angle of the fixed columns can be adjusted so as to adjust the included angle between the cable and the central axis of the short tube according to the actual situation.

[0026] (3) This solution includes a supporting structure, which has the following technical advantages:

[0027] First, the arc-shaped rods on bracket one and bracket two can be connected to each other. The connection between the two can position half gear one and half gear two to prevent them from changing position.

[0028] Secondly, the arc-shaped rod is set below the slewing frame, which can also support the slewing frame and ensure the stability of the slewing frame's rotation.

[0029] (4) A limit structure is set up. On the one hand, it has the function of temporary positioning and fixing column. The fixing column is stuck between two adjacent limit plates, which facilitates its docking with the short cylinder. On the other hand, the two telescopic cylinders push the two semicircular plates together, realizing the limitation and fastening of several fixing columns, increasing the stability of several fixing columns, thus ensuring the accuracy of the work of half gear one, half gear two and rotary frame.

[0030] (5) This scheme includes drones, which can be used for high-altitude operations. The drones are equipped with high-definition cameras and can perform corresponding control operations. On the other hand, the force generated by the two drones helps to make half gear one and half gear two work more stably. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of the positioning accuracy testing device in Embodiment 1 of the present invention.

[0032] Figure 2 This is a top view of the positioning accuracy testing device in Embodiment 1 of the present invention.

[0033] Figure 3 This is a schematic diagram of the connection structure between the inspection component and the rotating structure in Embodiment 1 of the present invention.

[0034] Figure 4 This is a schematic diagram of the structure of the testing component in Embodiment 1 of the present invention.

[0035] Figure 5 This is a schematic diagram of the limiting structure in Embodiment 1 of the present invention.

[0036] Figure 6This is a schematic diagram of the connection structure between the fixed column and the limiting structure in Embodiment 1 of the present invention.

[0037] Figure 7 This is a schematic diagram of the connection structure between the fixed column and the second half gear in Embodiment 1 of the present invention.

[0038] Figure 8 This is a schematic diagram of the connection structure between the inspection component and the inclination detection component in Embodiment 2 of the present invention.

[0039] Figure 9 This is a schematic diagram of the circuit structure of the slope detection component in Embodiment 2 of the present invention.

[0040] The attached figures are labeled as follows: 1. Fixed base; 2. Half gear one; 3. Half gear two; 31. Upper opening slot; 32. Lower opening slot; 33. Semicircular baffle; 4. Cable tie; 5. Detection component; 51. Locking block; 511. Conductive sheet; 52. Moving column; 53. Spring; 54. Pressure sensor; 55. Telescopic cylinder one; 56. Baffle; 57. Push plate; 6. Rotating frame; 61. Indicator light; 7. Connecting plate; 8. Movable rod; 9. Electric push rod; 10. Positioning rod; 11. Telescopic cylinder two; 12. Motor; 13. Drive gear; 14. Arc rod; 141. Embedded groove; 15. Semicircular plate; 151. Limiting piece; 16. Fixed column; 161. Adjusting column; 17. Short cylinder. Detailed Implementation

[0041] To more clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0042] Example 1

[0043] See Figures 1-7 A device for testing the positioning accuracy of cable guide tubes for cable-stayed bridges includes two identical half-gears 2 and 3, a bracket 1 connected to the side of half-gear 2, a bracket 2 connected to the side of half-gear 3, a rotating structure movably connected to half-gear 2 and half-gear 3, and a detection component 5 for detecting the inclination of the cable 4. The detection component 5 is set on the rotating structure. Half-gear 2 and half-gear 3 can be separably connected to form a cylindrical gear structure. Half-gear 2 and half-gear 3 cover the outer top of the cable guide tube.

[0044] The upper end of bracket one is connected to drone one through one of the connecting plates 7, and the upper end of bracket two is connected to drone two through another connecting plate 7. The structures of bracket one and bracket two are the same.

[0045] More preferably, an upper opening groove 31 is formed on the upper end face of half gear 1 2 and half gear 2 3, and a lower opening groove 32 is formed on the lower end face, for engaging with the rotary frame 6, so that the rotary frame 6 can rotate around the upper and lower opening grooves.

[0046] The detection component 5 includes a locking block 51 with an opening slot on the outside, a movable column 52 with one end vertically connected to the locking block 51, a spring 53 sleeved on the outside of the movable column 52, a push plate 57 slidably connected to the other end of the movable column 52, a pressure sensor 54 disposed on one side of the push plate 57, and a telescopic cylinder 55 vertically connected to the other side of the push plate 57. The other end of the movable column 52 passes horizontally through the push plate 57 and is provided with a baffle 56. The spring 53 is disposed between the locking block 51 and the push plate 57.

[0047] Pressure sensor 54 is positioned between push plate 57 and clamping block 51, and telescopic cylinder 55 is horizontally fixed on the rotary structure.

[0048] The rotary structure includes a horizontally arranged drive gear 13, a motor 12 coaxially connected to the drive gear 13, and a rotary frame 6. The drive gear 13 is rotatably connected to the rotary frame 6 through the central shaft of the drive gear 13. The motor 12 is mounted on the rotary frame 6. The drive gear 13 is meshed with the outer sides of half gear 1 2 and half gear 2 3.

[0049] The bracket includes a positioning rod 10 with one end perpendicularly connected to the outside of the half gear 2, a movable rod 8 with one end hinged to the side of the positioning rod 10, and an electric push rod 9 connected to the other end of the positioning rod 10. The bottom end of the electric push rod 9 is hinged to the positioning rod 10, the telescopic end of the electric push rod 9 is hinged to the side of the movable rod 8, and the top end of the movable rod 8 is connected to the UAV.

[0050] The cable guide includes a short tube 17 and a number of fixed posts 16 arranged in a ring array on the top surface of the short tube 17. The central axis of the fixed posts 16 is parallel to the central axis of the short tube 17. An adjusting post 161 is coaxially arranged at the bottom end of the fixed post 16 and is embedded in a blind hole at the top of the short tube 17.

[0051] A gap is provided between two adjacent fixed columns 16.

[0052] The limiting structure includes a fixed base 1 located below the positioning rod 10, a telescopic cylinder 11 that passes vertically through the fixed base 1, a semi-circular plate 15 located on the telescopic cylinder 11, and several limiting pieces 151 arranged in a ring array vertically on the inner side of the semi-circular plate 15. The telescopic end of the telescopic cylinder 11 is vertically connected to the outer side of the semi-circular plate 15, and a fixing post 16 is engaged between two adjacent limiting pieces 151.

[0053] The support structure includes arc-shaped rods 14 respectively disposed on both sides of the positioning rod 10. The arc center of the arc rod 14 is located at the center of the cylindrical gear structure. One end of the arc rod 14 is vertically connected to one side of the positioning rod 10, and its other end is engaged with one end of another arc rod 14.

[0054] Pressure sensor 54 is connected to the host computer.

[0055] The upper surfaces of half-gear 1 (2) and half-gear 2 (3) are respectively provided with disc-shaped scale lines.

[0056] The specific working process of this invention:

[0057] In actual operation, the short cylinder 17 is first fixed on the main beam, and the cable 4 is led out accordingly. At this time, driven by UAV 1 and UAV 2, the half gear 1 2 and half gear 2 3 are connected by bracket 1 and bracket 2 respectively. Before this, several fixed columns 16 are clamped in the limiting piece 151 of the semicircular plate 15. The adjusting column 161 at the bottom of the fixed column 16 is connected to the top of the short cylinder 17. The top of the fixed column 16 abuts against the inner groove formed by the semicircular baffle 33, half gear 1 2 and half gear 2 3.

[0058] The detection component 5 includes a locking block 51 and a pressure sensor 54. At this time, the opening slot on the outside of the locking block 51 is locked on the outside of the cable 4. Under the action of the telescopic cylinder 55, the locking block 51 is further pushed, so that the pressure sensor 54 works. The rotating frame 6 rotates one revolution under the action of the drive gear 13 and the motor 12. The locking block 51 squeezes the pressure sensor 54, and the pressure sensor 54 uploads the signal to the host computer, so that people can observe whether the force on each part is consistent.

[0059] If the reading of pressure sensor 54 remains unchanged or changes little, it indicates that the central axis of the inclined cable lock and the short tube 17 are well aligned, and the possibility of the inclined cable 4 contacting the cable guide tube is very small. If the reading changes significantly, it indicates that the inclined cable 4 is not on the central axis of the cable guide tube and needs to be adjusted.

[0060] When adjusting the eccentricity of the two, under the action of the telescopic cylinder 55, the locking block 51 is further pushed to form a counterforce on the rotating frame 6. The counterforce acts on the fixed column 16 through the half gear 2 and the half gear 3, realizing the bending treatment of the fixed column 16, which helps to adjust the fixed column 16 at any tilt angle in the future.

[0061] The cable guide tube set in this scheme is an improvement on the existing cable guide tube. On the one hand, it can be used when the main beam height is small, that is, a fixed connection can be achieved by using the short tube 17. On the other hand, when the main beam height is large, several fixed columns 16 can be connected to the short tube 17. At the same time, the angle of the fixed column 16 can be adjusted so as to adjust the included angle between the cable 4 and the central axis of the short tube 17 according to the actual situation.

[0062] This design includes a support structure with arc-shaped rods 14 on bracket one and bracket two, which can be fitted together. Specifically, one arc-shaped rod 14 has an elongated column at its end, and the other arc-shaped rod 14 has an embedded groove 141 at its end, with the elongated column embedded in the groove 141. The connection between the two can position the first half-gear 2 and the second half-gear 3, preventing changes in their positions. The arc-shaped rods 14 are located below the rotary frame 6, which also provides support for the rotary frame 6, ensuring the stability of its rotation.

[0063] The setting of the limiting structure serves two purposes. Firstly, it temporarily positions and fixes the posts 16, which are positioned between two adjacent limiting plates 151 to facilitate their docking with the short cylinder 17. Secondly, the two telescopic cylinders 11 push the two semicircular plates 15 together, thereby limiting and securing the posts 16 and increasing their stability. This ensures the accuracy of the operation of the half gear 12, half gear 23, and the rotating frame 6.

[0064] This solution incorporates drones, which serve two purposes. Firstly, they can be used for high-altitude operations. The drones are equipped with high-definition cameras and perform corresponding control operations. Secondly, the force generated by the drones helps to stabilize half-gears 1 and 2. Specifically, during actual operation, the stay cable is inclined, but the drones on either side are typically horizontal. Therefore, the drone below the stay cable provides an upward force, which, after decomposition, causes half-gear 1 to press against the stay cable. Conversely, the drone above the stay cable provides a downward force, which, after decomposition, causes half-gear 2 to press against the stay cable. This close proximity of half-gears 1 and 2 enhances their connection, making them less prone to detachment.

[0065] When the cable guide tube is short, the difference between the two alignments is not very prominent. However, in low-tower cable-stayed bridges, the main girder is relatively high and the cable guide tube is also relatively long. In this case, the difference between the two alignments is significant. This issue must be considered when pre-embedding the cable guide tube. Therefore, it is essential to modify the installation angle of the pre-embedded cable guide tube to avoid friction between the cable guide tube and the cable. This solution is applicable to both large and small main girder heights.

[0066] Example 2

[0067] See Figures 8-9 The detection component 5 is also connected to the inclination detection component used to detect the inclination of the cable.

[0068] The inclination detection component includes a number of conductive plates 511 arranged from top to bottom on the inner side of the block 51, a number of indicator lights 61 arranged from top to bottom on the outer side of the rotating frame 6, and a power supply. The conductive plates 511 correspond to the indicator lights 61 and form a parallel circuit. The length of the conductive plates 511 is equal to the length of the indicator lights 61, which makes it easier for people to observe the contact length between the stay cable 4 and the inner side of the block 51 more intuitively, and can indirectly estimate the eccentricity of the cable guide tube.

[0069] in Figure 9 In the middle, the various indicator lights are connected in parallel. When the conductive sheet 511 is closed, the corresponding indicator light 61 lights up. The conductive sheet 511 and the indicator light 61 correspond one-to-one from top to bottom.

[0070] Due to the eccentricity of the stay cable, the inner side of the locking block 51 cannot contact the stay cable 4 at every position. Therefore, a conductive sheet 511 is provided, and a corresponding indicator light 61 is provided. When some indicator lights 61 light up, it can be determined which conductive sheets 511 are connected. The conductive sheet 511 corresponding to the indicator light 61 that is not lit must not be connected, so the corresponding area of ​​the inner side of the locking block 51 is not in contact with the stay cable.

[0071] Only when all the conductive plates 511 are in contact with the cable 4 and all the indicator lights 61 are lit can it be determined that the cable guide tube has completed the corresponding adjustment.

[0072] The technical features of this invention not described can be implemented by or using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this invention, and this invention is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this invention should also be within the protection scope of this invention.

Claims

1. A device for testing the positioning accuracy of cable-stayed bridge cable guide tubes, characterized in that, It includes two identical half-gears, one (2) and two half-gears (3), a bracket one connected to the side of the half-gear one (2), a bracket two connected to the side of the half-gears two (3), a rotary structure movably connected to the half-gear one (2) and the half-gears two (3), and a detection component (5) for detecting the inclination of the cable (4). The detection component (5) is set on the rotary structure. The half-gear one (2) and the half-gears two (3) are separable and connected to form a cylindrical gear structure. The half-gear one (2) and the half-gears two (3) cover the outer side of the top of the cable guide tube. It also includes a limiting structure and a supporting structure. The upper end of the first bracket is connected to the first drone, and the upper end of the second bracket is connected to the second drone. The first bracket and the second bracket have the same structure. The detection component (5) includes a locking block (51) with an opening groove on the outside, a moving column (52) with one end vertically connected to the locking block (51), a spring (53) sleeved on the outside of the moving column (52), a push plate (57) slidably connected to the other end of the moving column (52), a pressure sensor (54) set on one side of the push plate (57), and a telescopic cylinder (55) vertically connected to the other side of the push plate (57). The other end of the moving column (52) passes horizontally through the push plate (57) and is provided with a baffle (56). The spring (53) is set between the locking block (51) and the push plate (57). The pressure sensor (54) is disposed between the push plate (57) and the locking block (51), and the telescopic cylinder (55) is horizontally fixed on the rotary structure; The detection component (5) is also connected to an inclination detection component for detecting the inclination of the cable-stayed bridge; The rotary structure includes a horizontally arranged drive gear (13), a motor (12) coaxially connected to the drive gear (13), and a rotary frame (6), which is rotatably connected to the rotary frame (6) through the central axis of the drive gear (13). The motor (12) is mounted on the rotary frame (6). The drive gear (13) meshes with the outer sides of the first half gear (2) and the second half gear (3). The bracket includes a positioning rod (10) with one end perpendicularly connected to the outside of the half gear (2), a movable rod (8) with one end hinged to the side of the positioning rod (10), and an electric push rod (9) connected to the other end of the positioning rod (10). The bottom end of the electric push rod (9) is hinged to the positioning rod (10), the telescopic end of the electric push rod (9) is hinged to the side of the movable rod (8), and the top end of the movable rod (8) is connected to the UAV. The cable guide includes a short tube (17) and a plurality of fixed posts (16) arranged in a ring array on the top surface of the short tube (17). The central axis of the fixed posts (16) is parallel to the central axis of the short tube (17). An adjusting post (161) is coaxially arranged at the bottom end of the fixed post (16). The adjusting post (161) is embedded in a blind hole provided at the top of the short tube (17). A gap is provided between two adjacent fixed posts (16). The limiting structure includes a fixed seat (1) located below the positioning rod (10), a telescopic cylinder (11) that passes vertically through the fixed seat (1), a semi-circular plate (15) located on the telescopic cylinder (11), and a plurality of limiting pieces (151) arranged in a ring array vertically on the inner side of the semi-circular plate (15). The telescopic end of the telescopic cylinder (11) is vertically connected to the outer side of the semi-circular plate (15), and a fixing post (16) is engaged between two adjacent limiting pieces (151).

2. The cable-stayed bridge cable guide tube positioning accuracy testing device according to claim 1, characterized in that, The support structure includes arc-shaped rods (14) respectively disposed on both sides of the positioning rod (10). The arc center of the arc-shaped rod (14) is located at the center of the cylindrical gear structure. One end of the arc-shaped rod (14) is vertically connected to one side of the positioning rod (10), and its other end is connected to one end of another arc-shaped rod (14).

3. The cable-stayed bridge cable guide tube positioning accuracy testing device according to claim 1, characterized in that, The pressure sensor (54) is connected to the host computer.

4. The cable-stayed bridge cable guide tube positioning accuracy testing device according to claim 1, characterized in that, The upper surfaces of the first half gear (2) and the second half gear (3) are respectively provided with disc-shaped scale lines.

5. The cable-stayed bridge cable guide tube positioning accuracy testing device according to claim 1, characterized in that, The inclination detection component includes a plurality of conductive sheets (511) arranged from top to bottom on the inner side of the card block (51), a plurality of indicator lights (61) arranged from top to bottom on the outer side of the rotary frame (6), and a power supply. The plurality of conductive sheets (511) correspond to the plurality of indicator lights (61) and form a parallel circuit. The length of the plurality of conductive sheets (511) is equal to the length of the plurality of indicator lights (61).

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