Three-dimensional fine adjustment device for cable guide pipe of cable-stayed bridge

Abstract

The application relates to the technical field of cable-stayed bridges, and particularly discloses a three-dimensional fine adjustment device for a cable-stayed bridge cable guide pipe, which comprises a lifting adjustment table and an angle adjustment assembly; the angle adjustment assembly is arranged at the top side of the lifting adjustment table and is used for adjusting the use angle of a fixed pipe structure; the angle adjustment assembly comprises an adjusting screw rod, an adjusting sliding seat is threadedly connected to the outer side of the adjusting screw rod, and an adjusting connecting arm is rotatably arranged at the top end of the adjusting sliding seat; through the arrangement of the angle adjustment assembly, the adjusting connecting arm gradually tends to be in a vertical state through the movement of the adjusting sliding seat, so that the fixed pipe table and the connecting end part of the adjusting connecting arm can be lifted, the fixed pipe table can be upwardly inclined, the cable guide pipe clamped by the fixed pipe structure can be inclined and adjusted in angle, and the three-dimensional fine adjustment device can be flexibly applied in a construction site and the installation precision of the cable guide pipe is improved.

Description

Technical Field

[0001] This application relates to the field of cable-stayed bridge technology, and in particular to a three-dimensional fine-tuning device for cable guide tubes of cable-stayed bridges. Background Technology

[0002] Cable-stayed bridges are a major structural form of modern long-span bridges. Their core feature is that the main beam of the bridge deck is connected to the towering pylons (columns) by cable stays, forming a unique force-bearing system. To protect the cable stays from damage, cable guide tubes are pre-embedded at both ends of the cable-stayed bridge, and the cables can pass through the cable guide tubes. The cable stays are connected to the pylons and beams through the cable guide tubes to ensure structural safety and durability.

[0003] However, the current technology still has the following problems: the installation angle of the cable guide is fixed by the positioning frame and cannot be freely adjusted according to the on-site construction, resulting in poor accuracy of the cable guide during installation, which in turn makes it difficult to thread the cable. Summary of the Invention

[0004] This application provides a three-dimensional fine-tuning device for cable-stayed bridge cable guides, which solves the problem that in the prior art, the installation angle of the cable guide is fixed by a positioning frame and cannot be freely adjusted according to the on-site construction, resulting in poor accuracy of the cable guide during installation and difficulty in threading the cables. This device enables free adjustment of the cable guide angle, allowing for flexible application on the construction site, improving the installation accuracy of the cable guide, and making it easier to thread the cables.

[0005] This application provides a three-dimensional fine-tuning device for cable-stayed bridge cable guide tubes, comprising:

[0006] Lifting and adjusting platform;

[0007] An angle adjustment component is disposed on one side of the top of the lifting adjustment platform, and the angle adjustment component is used to adjust the operating angle of the fixed tube structure;

[0008] The angle adjustment assembly includes an adjustment screw, an adjustment slide is threaded to the outer side of the adjustment screw, an adjustment connecting arm is rotatably provided at the top of the adjustment slide, and fixed seat slides are rotatably provided at both ends of the adjustment screw. The fixed seat slides are fixedly provided at the top of the lifting adjustment platform. The rotation of the adjustment screw is used to drive the adjustment slide to move, which is suitable for adjusting the included angle between the adjustment connecting arm and the lifting adjustment platform by moving the adjustment slide.

[0009] A fixed tube structure is provided at the top of the lifting adjustment platform and is used to clamp the fixed cable guide tube.

[0010] The fixed pipe structure includes a support platform, which is rotatably connected to the adjusting arm, and the support platform is rotatably disposed on the other side of the top of the lifting and adjusting platform.

[0011] Furthermore, the top of the support platform is provided with a receiving groove, and a fixed sliding shell is symmetrically fixedly provided on the inner side of the receiving groove. A connecting pipe platform is slidably provided on the inner side of the receiving groove. A slide rail is provided on the connecting pipe platform corresponding to the position of the fixed sliding shell. The support platform and the connecting pipe platform are both designed with curved tops.

[0012] Furthermore, a pressure-driving connecting plate is symmetrically rotatably arranged at the bottom end of the connecting platform, a drive gear plate is rotatably arranged at the other end of the pressure-driving connecting plate, a coupling gear is meshed at the top of the drive gear plate, a connecting pressure plate is fixedly arranged on the outer side of the coupling gear, a pipe-clamping arc plate is rotatably arranged at the other end of the connecting pressure plate, the side of the pipe-clamping arc plates that are close to each other is set with an arc surface, and the side of the pipe-clamping arc plates that are close to each other is provided with anti-slip texture, side supports are rotatably arranged at both ends of the connecting pressure plate, a side receiving platform is slidably arranged at the bottom end of the drive gear plate, the side support is fixedly arranged at the top of the side receiving platform, and the side receiving platform is fixedly arranged at the bottom end of the connecting platform.

[0013] Furthermore, a return spring and a lower guide rod are fixedly installed at the bottom end of the connecting platform. The lower guide rod is located inside the return spring. A bottom connecting cover is fixedly installed at the other end of the return spring. The bottom connecting cover is fixedly installed at the bottom end of the connecting platform. The lower guide rod passes through and slides at the bottom end of the bottom connecting cover. A locking assembly is installed at the other end of the lower guide rod. The locking assembly is suitable for locking the fixed pipe structure in the clamping state.

[0014] Furthermore, the locking assembly includes a connecting round block, which is fixedly disposed at the other end of the lower guide rod. A receiving groove is symmetrically opened on the outer side of the connecting round block. A return spring is fixedly disposed on the inner side of the receiving groove. A locking block is fixedly disposed at the other end of the return spring. The locking block is slidably disposed on the inner side of the receiving groove. The side of the locking blocks that is far apart from each other is set as an inclined surface.

[0015] Furthermore, a fixed cylindrical shell is fixedly installed at the bottom end of the bottom connecting cover. A sliding groove is symmetrically opened on the outer side of the fixed cylindrical shell. A fixed ring is fixedly installed on the inner side of the fixed cylindrical shell. The fixed ring is located at the top of the locking block. A movable ring plate is installed at the bottom end of the locking block. The movable ring plate is slidably installed on the inner side of the fixed cylindrical shell. An extension plate is symmetrically installed on the outer side of the movable ring plate. The extension plate is slidably installed on the inner side of the sliding groove. A guide rod is fixedly installed at the bottom end of the extension plate. A bottom connecting plate is fixedly installed at the other end of the guide rod. A return plate spring is fixedly installed at the top end of the bottom connecting plate. The return plate spring is fixedly installed at the bottom end of the fixed cylindrical shell.

[0016] Furthermore, the bottom end of the lifting adjustment platform is provided with a height adjustment structure, which includes a sliding platform. A first expansion connecting plate is symmetrically rotatably arranged at the top end of the sliding platform. A second expansion connecting plate is arranged above the first expansion connecting plate. A connecting frame is rotatably arranged at the same end of the first and second expansion connecting plates. A double-threaded screw is threaded through and connected to one side of the connecting frame. Symmetrical threads are arranged on the outer side of the double-threaded screw. Hanging plates are rotatably arranged on both sides of the second expansion connecting plate. The connecting frame is fixedly arranged at the bottom end of the lifting adjustment platform.

[0017] Furthermore, an upper connecting platform is slidably provided at the bottom end of the sliding stage, and a first lead screw is threadedly connected to the bottom end of the sliding stage. The first lead screw is rotatably provided on both sides of the top end of the upper connecting platform. A lower connecting platform is slidably provided at the bottom end of the upper connecting platform, and a second lead screw is threadedly connected to the bottom end of the upper connecting platform. The second lead screw is rotatably provided on both sides of the top end of the lower connecting platform. The lower connecting platform is fixedly provided around the pre-embedded installation position of the cable guide tube by bolts.

[0018] The technical solution provided in this application has at least the following technical effects or advantages:

[0019] 1. This application, through the setting of the angle adjustment component, allows the adjustment arm to gradually move towards a vertical state by adjusting the movement of the sliding block. This allows the connection end between the support platform and the adjustment arm to rise, thereby allowing the support platform to tilt upwards. This enables the cable guide clamped by the fixed pipe structure to tilt and adjust its angle, thus flexibly applying it on the construction site and improving the installation accuracy of the cable guide.

[0020] 2. With the setting of the fixed tube structure, when the cable guide is pressed on the top of the support platform in the fixed tube structure, the two clamping arc plates will automatically clamp and fix the cable guide. Furthermore, the clamping arc plates in the clamping state will not easily loosen through the locking assembly, thereby making the cable guide more stable during adjustment.

[0021] 3. This application uses a height adjustment structure to adjust the height of the cable guide to adapt to the angle water. By rotating the double-threaded screw in the height adjustment structure, the connecting frame can move relative to the cable guide, thereby increasing or decreasing the included angle between the first expansion plate and the second expansion plate. This allows the height of the lifting adjustment platform to be changed, thereby further precisely adjusting the installation position of the cable guide. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of the combined structure of the lifting adjustment platform, the angle adjustment component, and the support platform according to the embodiments of this application.

[0024] Figure 3 This is a three-dimensional structural diagram of the fixed tube structure in the embodiment of this application.

[0025] Figure 4 This is a schematic diagram of the combined structure of the connecting platform, the driving pressure plate, the driving tooth plate, the rotating gear, the rotating pressure plate and the side connecting platform in the embodiment of this application.

[0026] Figure 5 This is a cross-sectional view of the fixed tube structure in the embodiment of this application.

[0027] Figure 6 This is a schematic diagram showing the disassembled structure of the lower guide rod, connecting circular block, and locking block in the embodiment of this application.

[0028] Figure 7 This is a schematic diagram showing the disassembled structure of the lifting adjustment platform and the height adjustment structure in the embodiments of this application.

[0029] Figure 8 This is a schematic diagram of the split structure between the upper and lower connectors in the embodiment of this application.

[0030] In the diagram: 1. Lifting and adjusting platform; 2. Angle adjusting assembly; 201. Fixed seat slide; 202. Adjusting screw; 203. Adjusting slide; 204. Adjusting connecting arm; 3. Fixed pipe structure; 301. Support platform; 3011. Receiving groove; 3012. Fixed slide; 302. Connecting pipe platform; 303. Driving pressure plate; 304. Driving gear plate; 305. Coupling gear; 306. Coupling pressure plate; 307. Pipe clamping arc plate; 308. Side support; 309. Side connecting platform; 310. Return spring; 311. Bottom connecting cover; 312. Lower guide rod; 313. Connecting round block; 3131. Receiving groove; 314. Locking block; 3141. Return spring; 315. Fixed cylinder shell; 3151. Slide groove; 316. Fixed ring; 317. Movable ring plate; 318. Guide rod; 319. Return plate spring; 4. Height adjustment structure; 401. Sliding platform; 402. First expansion connecting plate; 403. Second expansion connecting plate; 404. Lifting plate; 405. Connecting frame; 406. Double-threaded screw; 5. Upper connecting platform; 501. First screw; 6. Lower connecting platform; 601. Second screw; 7. Cable guide. Detailed Implementation

[0031] This application discloses a three-dimensional fine-tuning device for cable-stayed bridge cable guide tubes. By setting the angle adjustment component 2 and adjusting the movement of the sliding block 203, the adjusting arm 204 gradually tends to a vertical state, thereby allowing the connection end between the support platform 301 and the adjusting arm 204 to rise. This allows the support platform 301 to tilt upwards, enabling the cable guide tube 7 held by the fixed pipe structure 3 to tilt and adjust its angle. This allows for flexible application on construction sites and improves the installation accuracy of the cable guide tube 7.

[0032] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0033] Example 1:

[0034] Reference Figure 1 and Figure 2 This application discloses a three-dimensional fine-tuning device for cable-stayed bridge ducts, comprising: an angle adjustment component 2, which is disposed on one side of the top of the lifting adjustment platform 1. The angle adjustment component 2 is used to adjust the operating angle of the fixed tube structure 3. The angle adjustment component 2 includes an adjustment screw 202, an adjustment slide 203 is threadedly connected to the outer side of the adjustment screw 202, an adjustment connecting arm 204 is rotatably disposed at the top of the adjustment slide 203, and fixed seat slides 201 are rotatably disposed at both ends of the adjustment screw 202. The fixed seat slides 201 are fixedly disposed at the top of the lifting adjustment platform 1. The rotation of the adjustment screw 202 is used to drive the adjustment slide 203 to move, which is suitable for adjusting the included angle between the adjustment connecting arm 204 and the lifting adjustment platform 1 by moving the adjustment slide 203.

[0035] The adjusting screw 202 in the rotation angle adjustment assembly 2 causes the adjusting slide 203 to slide inside the fixed slide shell 201, thereby changing the angle between the adjusting connecting arm 204 and the fixed slide shell 201. The larger the angle, the larger the tilt angle of the cable guide 7, thus achieving the effect of adjusting the installation angle of the cable guide 7, and thus flexibly applying it on the construction site.

[0036] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 It also includes a fixed pipe structure 3, which is set at the top of the lifting adjustment platform 1. The fixed pipe structure 3 is used to clamp the fixed cable guide 7. The fixed pipe structure 3 includes a support platform 301, which is rotatably connected to the adjustment arm 204. The support platform 301 is rotatably set on the other side of the top of the lifting adjustment platform 1. The top of the support platform 301 is provided with a receiving groove 3011. A fixed sliding shell 3012 is symmetrically fixed on the inner side of the receiving groove 3011. A connecting pipe platform 302 is slidably set on the inner side of the receiving groove 3011. A slide rail is set on the connecting pipe platform 302 corresponding to the position of the fixed sliding shell 3012. The support platform 301 and the connecting pipe platform 302 are set with an arc surface at the top.

[0037] When the connecting platform 302 rises and falls, it slides with the fixed sliding shell 3012 via a slide rail, so that the connecting platform 302 can only move in the vertical direction. The top of the support platform 301 and the connecting platform 302 are set with arc surfaces, which makes it easy for the cable guide 7 to be located at the top center of the support platform 301 at all times, thus improving the accuracy of the cable guide 7 during installation.

[0038] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A pressure-driving connecting plate 303 is symmetrically and rotatably arranged at the bottom end of the connecting plate 302. A drive tooth plate 304 is rotatably arranged at the other end of the pressure-driving connecting plate 303. A coupling gear 305 is meshed at the top of the drive tooth plate 304. A connecting pressure plate 306 is fixedly arranged on the outside of the coupling gear 305. A clamping arc plate 307 is rotatably arranged at the other end of the clamping arc plate 306. The side of the clamping arc plate 307 that is close to each other is set with an arc surface. The side of the clamping arc plate 307 that is close to each other is set with anti-slip texture. Side supports 308 are rotatably arranged at both ends of the connecting pressure plate 306. A side receiving platform 309 is slidably arranged at the bottom end of the drive tooth plate 304. The side supports 308 are fixedly arranged at the top end of the side receiving platform 309. The side receiving platform 309 is fixedly arranged at the bottom end of the connecting plate 301.

[0039] The cable guide 7 is pressed down by its own weight, causing the connecting platform 302 to press down. The pressing down of the connecting platform 302 will gradually increase the included angle between the two driving pressure plates 303. As a result, the driving tooth plate 304 will be moved by the change of the driving pressure plate 303. The movement of the driving tooth plate 304 will drive the rotating gear 305 to rotate. The rotation of the rotating gear 305 will drive the rotating pressure plate 306 to move. The included angle between the rotating pressure plate 306 and the driving tooth plate 304 will gradually decrease. The clamping arc plate 307 provided at the other end of the rotating pressure plate 306 will fit against the outside of the cable guide 7. Thus, the two clamping arc plates 307 form a clamping force to fix the cable guide 7, which makes it more stable when adjusting the cable guide 7 and reduces the use of external hoisting equipment.

[0040] The locking assembly includes a connecting block 313, which is fixedly mounted on the other end of the lower guide rod 312. A receiving groove 3131 is symmetrically provided on the outer side of the connecting block 313. A return spring 3141 is fixedly mounted on the inner side of the receiving groove 3131. A locking block 314 is fixedly mounted on the other end of the return spring 3141. The locking block 314 is slidably mounted on the inner side of the receiving groove 3131. The side of the locking blocks 314 that is far apart from each other is set with an inclined surface. A fixing cylinder shell 315 is fixedly mounted on the bottom end of the bottom cover 311. A sliding groove 3151 is symmetrically provided on the outer side of the fixing cylinder shell 315. A fixing ring 316 is fixedly mounted on the inner side of the fixing cylinder shell 315. The fixing ring 316 is located at the top of the locking block 314.

[0041] As the connecting platform 302 descends, the return spring 310 is compressed, and simultaneously the lower guide rod 312 and the connecting block 313 in the locking assembly descend together. When the locking block 314 contacts the fixing ring 316, the locking block 314 enters the receiving groove 3131 through the inclined surface set on the side of the locking block 314 that is far apart from each other, and the return spring 3141 is compressed. When the locking block 314 enters between the fixing ring 316 and the movable ring plate 317, the elastic force of the return spring 3141 allows the locking block 314 to be released, thereby preventing the lower guide rod 312 from being pulled upward, thus forming a locked state, making the clamping arc plate 307 more stable when clamping.

[0042] Specifically, the bottom end of the locking block 314 is provided with a movable ring plate 317, which is slidably disposed on the inner side of the fixed cylinder shell 315. An extension plate is symmetrically disposed on the outer side of the movable ring plate 317, which is slidably disposed on the inner side of the slide groove 3151. A guide rod 318 is fixedly disposed at the bottom end of the extension plate, and a bottom connecting plate is fixedly disposed at the other end of the guide rod 318. A return plate spring 319 is fixedly disposed at the top end of the bottom connecting plate, and the return plate spring 319 is fixedly disposed at the bottom end of the fixed cylinder shell 315.

[0043] After the cable guide 7 is installed and fixed, the fixed pipe structure 3 needs to be disengaged from the cable guide 7. The bottom plate can be pushed upward so that the guide rod 318 can drive the movable ring plate 317 to move upward and the locking block 314 can enter the receiving groove 3131. At this time, the angle of the support platform 301 can be slowly adjusted by the angle adjustment component 2 so that the included angle between the support platform 301 and the lifting adjustment platform 1 becomes smaller. The connecting platform 302 and the lower guide rod 312 will gradually rise by the elastic force of the return spring 310, so that the clamping arc plate 307 releases the cable guide 7, thereby allowing the device to be disassembled.

[0044] Example 2:

[0045] Reference Figure 1 and Figure 7 The bottom end of the lifting adjustment platform 1 is provided with a height adjustment structure 4, which includes a sliding platform 401. A first expansion connecting plate 402 is symmetrically rotatably arranged at the top of the sliding platform 401. A second expansion connecting plate 403 is arranged above the first expansion connecting plate 402. A connecting frame 405 is rotatably arranged at the same end of the first expansion connecting plate 402 and the second expansion connecting plate 403. A double threaded screw 406 is threaded through and connected to one side of the connecting frame 405. Symmetrical threads are arranged on the outer side of the double threaded screw 406. Lifting plates 404 are rotatably arranged on both sides of the second expansion connecting plate 403. The connecting frame 405 is fixedly arranged at the bottom end of the lifting adjustment platform 1.

[0046] When the installation height of the cable guide 7 needs to be adjusted, the double-threaded screw 406 in the height adjustment structure 4 is rotated directly, which increases the distance between the connecting frames 405. As a result, the first expansion plate 402 and the second expansion plate 403 are driven to open under the movement of the connecting frames 405. The included angle between the first expansion plate 402 and the second expansion plate 403 increases, thereby raising the height of the lifting adjustment platform 1. This allows the height of the fixed pipe structure 3 and the cable guide 7 it holds to be adjusted, so that the angle after the cable guide 7 is adjusted can be matched, making the installation of the cable guide 7 more precise.

[0047] Reference Figure 1 , Figure 7 and Figure 8 The bottom end of the sliding platform 401 is slidably provided with an upper connecting platform 5. The bottom end of the sliding platform 401 is threadedly connected with a first lead screw 501. The first lead screw 501 is rotatably provided on both sides of the top end of the upper connecting platform 5. The bottom end of the upper connecting platform 5 is slidably provided with a lower connecting platform 6. The bottom end of the upper connecting platform 5 is threadedly connected with a second lead screw 601. The second lead screw 601 is rotatably provided on both sides of the top end of the lower connecting platform 6. The lower connecting platform 6 is fixedly provided around the pre-embedded installation position of the cable guide 7 by bolts.

[0048] When adjusting the lateral position of the cable guide 7, the first lead screw 501 is rotated, which drives the sliding table 401 to move. When adjusting the longitudinal position of the cable guide 7, the second lead screw 601 is rotated, which drives the upper connecting table 5 to move. This allows for adjustment of the lateral and longitudinal positions of the cable guide 7, further improving the accuracy of the cable guide 7 installation.

[0049] Working principle: The device is installed around the pre-embedded installation position of the cable guide 7 via the lower connecting platform 6. The cable guide 7 is placed on top of the support platform 301, with the longer end of the cable guide 7 being the end that is inclined and inserted into the bridge structure. When the cable guide 7 contacts the connecting platform 302, the weight of the cable guide 7 causes the connecting platform 302 to press down. The downward pressure of the connecting platform 302 causes the included angle between the two driving pressure connecting plates 303 to gradually increase, thereby driving the rotating toothed plate 304 to move due to the change in the driving pressure connecting plates 303. The movement of the drive gear plate 304 drives the rotating gear 305 to rotate. The rotation of the rotating gear 305 drives the rotating pressure plate 306 to move. The included angle between the rotating pressure plate 306 and the drive gear plate 304 will gradually decrease. The clamping arc plate 307 provided at the other end of the rotating pressure plate 306 will fit against the outside of the cable guide 7. Thus, the two clamping arc plates 307 form a clamping force to fix the cable guide 7, which makes it more stable when adjusting the cable guide 7 and reduces the use of external hoisting equipment, making the installation of the cable guide 7 simpler.

[0050] Among them, the connecting platform 302 slides with the fixed sliding shell 3012 through the slide rail, so that the connecting platform 302 can only move in the vertical direction. The top of the support platform 301 and the connecting platform 302 are set with arc surface, which makes it easy for the cable guide 7 to be located at the top center of the support platform 301 at all times, thus improving the accuracy of the cable guide 7 during installation.

[0051] As the connecting platform 302 descends, the return spring 310 is compressed, and at the same time, the lower guide rod 312 and the connecting block 313 in the locking assembly descend together. When the locking block 314 contacts the fixing ring 316, the locking block 314 enters the receiving groove 3131 through the inclined surface set on the side of the locking block 314 that is far away from each other, and the return spring 3141 is compressed. When the locking block 314 enters between the fixing ring 316 and the movable ring plate 317, the elastic force of the return spring 3141 allows the locking block 314 to be released, thereby preventing the lower guide rod 312 from being pulled upward, thus forming a locked state, making the clamping arc plate 307 more stable when clamping.

[0052] When adjusting the installation angle of the cable guide 7, rotate the adjusting screw 202 in the angle adjusting assembly 2 so that the adjusting slide 203 slides inside the fixed slide 201, thereby changing the angle between the adjusting arm 204 and the fixed slide 201. The larger the angle, the greater the tilt angle of the cable guide 7, thereby achieving the effect of adjusting the installation angle of the cable guide 7, and thus flexibly applying it on the construction site.

[0053] Once the cable guide 7 is adjusted and fixed in the bridge structure, push the bottom plate upward so that the guide rod 318 can drive the movable ring plate 317 to move upward and the locking block 314 can enter the receiving groove 3131. At this time, the angle of the support platform 301 is slowly adjusted by the angle adjustment component 2 so that the angle between the support platform 301 and the lifting adjustment platform 1 becomes smaller. The connecting platform 302 and the lower guide rod 312 will gradually rise by the elastic force of the return spring 310, so that the clamping arc plate 307 releases the cable guide 7, thereby allowing the device to be disassembled.

[0054] Furthermore, when it is necessary to adjust the installation height of the cable guide 7, the double-threaded screw 406 in the height adjustment structure 4 is directly rotated, which increases the distance between the connecting frames 405. As a result, the movement of the connecting frames 405 drives the first expansion plate 402 and the second expansion plate 403 to open, increasing the included angle between the first expansion plate 402 and the second expansion plate 403. This raises the height of the lifting adjustment platform 1, allowing adjustment of the height of the fixed pipe structure 3 and the cable guide 7 it holds. When adjusting the lateral position of the cable guide 7, the first screw 501 is rotated, which drives the sliding platform 401 to move. When adjusting the longitudinal position of the cable guide 7, the second screw 601 is rotated, which drives the upper connecting platform 5 to move. This allows adjustment of the lateral and longitudinal positions of the cable guide 7, further improving the installation accuracy of the cable guide 7.

[0055] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0056] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A three-dimensional fine-tuning device for cable-stayed bridge cable guide tubes, characterized in that: include: Lifting and adjusting platform; An angle adjustment component is disposed on one side of the top of the lifting adjustment platform, and the angle adjustment component is used to adjust the operating angle of the fixed tube structure; The angle adjustment assembly includes an adjustment screw, an adjustment slide is threaded to the outer side of the adjustment screw, an adjustment connecting arm is rotatably provided at the top of the adjustment slide, and fixed seat slides are rotatably provided at both ends of the adjustment screw. The fixed seat slides are fixedly provided at the top of the lifting adjustment platform. The rotation of the adjustment screw is used to drive the adjustment slide to move, which is suitable for adjusting the included angle between the adjustment connecting arm and the lifting adjustment platform by moving the adjustment slide. A fixed tube structure is provided at the top of the lifting adjustment platform and is used to clamp the fixed cable guide tube. The fixed pipe structure includes a support platform, which is rotatably connected to the adjusting arm, and the support platform is rotatably disposed on the other side of the top of the lifting and adjusting platform. The top of the support platform is provided with a receiving groove, and a fixed sliding shell is symmetrically fixedly provided on the inner side of the receiving groove. A connecting platform is slidably provided on the inner side of the receiving groove. A slide rail is provided on the connecting platform corresponding to the position of the fixed sliding shell. The support platform and the connecting platform are designed with curved tops. The bottom end of the connecting platform is symmetrically and rotatably equipped with a pressure-driving connecting plate. The other end of the pressure-driving connecting plate is rotatably equipped with a drive tooth plate. The top end of the drive tooth plate is meshed with a rotating gear. A rotating pressure plate is fixedly equipped on the outside of the rotating gear. The other end of the rotating pressure plate is rotatably equipped with a pipe-clamping arc plate. The side of the pipe-clamping arc plates that are close to each other is curved. The side of the pipe-clamping arc plates that are close to each other is provided with anti-slip texture. The two ends of the rotating pressure plate are rotatably equipped with side supports. The bottom end of the drive tooth plate is slidably equipped with a side receiving platform. The side support is fixedly equipped on the top end of the side receiving platform. The side receiving platform is fixedly equipped on the bottom end of the connecting platform. A return spring and a lower guide rod are fixedly installed at the bottom end of the connecting platform. The lower guide rod is located inside the return spring. A bottom connecting cover is fixedly installed at the other end of the return spring. The bottom connecting cover is fixedly installed at the bottom end of the connecting platform. The lower guide rod passes through and slides at the bottom end of the bottom connecting cover. A locking assembly is installed at the other end of the lower guide rod. The locking assembly is suitable for locking the fixed pipe structure in the clamping state. A fixing cylinder shell is fixedly installed at the bottom end of the bottom connecting cover. The outer side of the fixing cylinder shell has symmetrically opened sliding grooves. A fixing ring is fixedly installed on the inner side of the fixed cylinder shell. The fixing ring is located at the top of the locking block. A movable ring plate is installed at the bottom of the locking block. The movable ring plate is slidably installed on the inner side of the fixed cylinder shell. An extension plate is symmetrically installed on the outer side of the movable ring plate. The extension plate is slidably installed on the inner side of the slide groove. A guide rod is fixedly installed at the bottom of the extension plate. A bottom connecting plate is fixedly installed at the other end of the guide rod. A return plate spring is fixedly installed at the top of the bottom connecting plate. The return plate spring is fixedly installed at the bottom end of the fixed cylinder shell.

2. The three-dimensional fine-tuning device for cable-stayed bridge ducts as described in claim 1, characterized in that, The locking assembly includes a connecting round block, which is fixedly disposed at the other end of the lower guide rod. A receiving groove is symmetrically opened on the outer side of the connecting round block. A return spring is fixedly disposed on the inner side of the receiving groove. A locking block is fixedly disposed at the other end of the return spring. The locking block is slidably disposed on the inner side of the receiving groove. The side of the locking blocks that is far apart from each other is set as an inclined surface.

3. The three-dimensional fine-tuning device for cable-stayed bridge ducts as described in claim 1, characterized in that, The bottom of the lifting adjustment platform is provided with a height adjustment structure, which includes a sliding platform. A first expansion connecting plate is symmetrically rotatably arranged at the top of the sliding platform. A second expansion connecting plate is arranged above the first expansion connecting plate. A connecting frame is rotatably arranged at the same end of the first and second expansion connecting plates. A double-threaded screw is threaded through and connected to one side of the connecting frame. Symmetrical threads are arranged on the outer side of the double-threaded screw. Hanging plates are rotatably arranged on both sides of the second expansion connecting plate. The connecting frame is fixedly arranged at the bottom of the lifting adjustment platform.

4. The three-dimensional fine-tuning device for cable-stayed bridge ducts as described in claim 3, characterized in that, The sliding platform has an upper connecting platform slidably mounted on its bottom end. The bottom end of the sliding platform is threadedly connected to a first lead screw, which is rotatably mounted on both sides of the top of the upper connecting platform. The bottom end of the upper connecting platform has a lower connecting platform slidably mounted on its bottom end. The bottom end of the upper connecting platform is threadedly connected to a second lead screw, which is rotatably mounted on both sides of the top of the lower connecting platform. The lower connecting platform is fixedly mounted around the pre-embedded installation position of the cable guide tube by bolts.

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