An anchoring device

Abstract

The present invention relates to the technical field of bridge structures, and more particularly, to an anchoring device. It includes a fixed outer shell, a bundling part, and a tensioning part. The fixed outer shell is used for fixedly connecting to a cable tower. There are two bundling parts, which are arranged at the left and right ends of the fixed outer shell respectively and are used for supporting the two ends of the steel strands. The tensioning part includes a translation block, a steel strand clamping plate, and a first adjusting member. The translation block and the steel strand clamping plate are both arranged inside the fixed outer shell. The translation block is used for connecting to the fixed outer shell. There are multiple steel strand clamping plates, and the multiple steel strand clamping plates are all arranged at the lower end of the translation block. The first adjusting member is arranged on the translation block and is used for driving the steel strand clamping plate to move in the vertical direction. A clamping groove is formed on the lower end surface of the steel strand clamping plate, and the middle part of the steel strand is used for being arranged in the clamping groove. Multiple steel strands can be adjusted in sequence to ensure that each steel strand can be tensioned, thereby ensuring the stability of the bridge.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge structures, and more particularly, to an anchoring device. Background Art

[0002] In existing bridge structures, due to its characteristics such as small height of the main girder, large spanning ability, and beautiful shape, the cable-stayed bridge has become one of the most popular bridge types for long-span bridges. A common form of the cable-stayed bridge is that a pylon is built in the middle, the bridge decks are arranged on both sides of the pylon, and the pylon and the bridge decks are connected by stay cables.

[0003] In the prior art, the stay cable is a bundle of steel strands composed of several steel strands. An anchoring structure is arranged on the pylon. One end of the steel strand is fixedly connected to the bridge deck, and the other end is fixedly connected to the anchoring structure. During the construction of the cable-stayed bridge, the stay cable composed of several steel strands can be tensioned integrally at one time, and each section of the bridge deck can be horizontally pulled up to avoid the collapse of the bridge deck. However, it is difficult to adjust the tightness of a single steel strand during the construction of the cable-stayed bridge, so it is impossible to ensure that each steel strand in the stay cable effectively tensions the bridge deck, which may affect the tension of the stay cable on the bridge deck and thus affect the stability of the bridge.

[0004] At the same time, bridge decks are arranged on both sides of the pylon, and different stay cables are used to connect the pylon to the bridge decks on both sides of the pylon. Therefore, the stress magnitudes on the bridge decks on both sides of the pylon may be different, which may also affect the stability of the bridge. Summary of the Invention

[0005] The present invention is used to solve at least one of the above technical problems.

[0006] To solve the above problems, the present invention provides an anchoring device applied to a cable-stayed bridge. The cable-stayed bridge includes a pylon, a bridge deck, and stay cables. The stay cables include multiple steel strands. The anchoring device includes a fixed housing, a bundling part, and a tensioning part. The fixed housing is used for fixedly connecting to the pylon. There are two bundling parts, which are arranged at the left and right ends of the fixed housing respectively, and are used for supporting both ends of the steel strands passing through the fixed housing.

[0007] The tensioning part includes a translation block, a steel strand clamping plate, and a first adjusting member. The translation block and the steel strand clamping plate are both arranged inside the fixed housing. The translation block is used for connecting to the fixed housing.

[0008] There are multiple steel strand clamping plates, and multiple steel strand clamping plates are all arranged at the lower end of the translation block. The first adjusting member is arranged on the translation block. There are multiple first adjusting members, and multiple first adjusting members are respectively connected to multiple steel strand clamping plates in one-to-one correspondence, and are used for respectively driving each steel strand clamping plate to move in the vertical direction.

[0009] A slot is provided on the lower end surface of each steel strand clamping plate, and multiple steel strands passing through the fixed housing are respectively used to pass through the slots of the corresponding steel strand clamping plates.

[0010] Technical effects of the present invention: The left end of the stay cable passes through the bundling part provided at the left end of the fixed housing and is fixed on the left bridge deck of the cable tower. The right end of the stay cable passes through the bundling part provided at the right end of the fixed housing and is fixed on the right bridge deck of the cable tower. Multiple steel strands in the middle of the stay cable are respectively arranged in the slots on the lower end surfaces of multiple steel strand clamping plates. The first adjusting member can be used to drive the steel strand clamping plate to move downward relative to the translation block, that is, each steel strand clamping plate can be adjusted individually. Thus, the first adjusting member can be used to adjust the un-tightened steel strands to ensure that each steel strand of the stay cable can be tightened, thereby ensuring the tension of the stay cable on the bridge deck and ensuring the stability of the bridge.

[0011] Meanwhile, one end of the stay cable is connected to the bridge deck on one side of the cable tower, and the other end of the stay cable is connected to the bridge deck on the other side of the cable tower. Multiple steel strands in the middle of the stay cable are arranged in the fixed housing and are respectively arranged in the slots on the lower end surfaces of multiple steel strand clamping plates. Then, one stay cable can be used to connect two sections of bridge decks on both sides of the cable tower, which can ensure that the two sections of bridge decks are subjected to the same force and thus ensure the stability of the bridge.

[0012] Optionally, the tensioning part further includes a second adjusting member, which is provided on the fixed housing and is used to drive the translation block to move in the vertical direction.

[0013] Optionally, the second adjusting member includes a fixed sleeve, an adjusting stud, and a spring. The fixed sleeve is fixedly connected to the fixed housing. The adjusting stud is vertically arranged and threadedly connected to the inner wall of the fixed sleeve. The lower end of the adjusting stud extends into the interior of the fixed housing. The spring is located between the adjusting stud and the translation block, and the upper and lower ends of the spring respectively abut against the lower end surface of the adjusting stud and the upper end surface of the translation block.

[0014] Optionally, a circular pipe column is fixedly provided at the upper end of the fixed housing. The lower part structure of the fixed sleeve is sleeved on the outer side wall of the circular pipe column. The circular pipe column is provided with a hollow structure with openings at both ends. The lower end of the adjusting stud is arranged in the circular pipe column, and the upper end of the adjusting stud is threadedly connected to the inner side wall of the upper part structure of the fixed sleeve.

[0015] Optionally, the second adjusting member further includes a pressing block, which is arranged between the adjusting stud and the spring, and the upper end surface of the pressing block abuts against the lower end surface of the adjusting stud, and the lower end surface of the pressing block abuts against the upper end of the spring.

[0016] Optionally, a vertically arranged strip rail is provided on the inner side wall of the fixed housing, a vertically arranged strip groove is provided on the translation block, and the strip rail is configured to be arranged in the strip groove.

[0017] Optionally, the first adjusting member is provided as a contact screw corresponding to the steel strand clamping plate. A sliding column is fixedly connected to the upper end of the steel strand clamping plate. A sliding groove is provided in the middle of the translation block. The sliding column is configured to be arranged in the sliding groove. The contact screw is threadedly connected to the upper end of the translation block. The lower end surface of the contact screw passes through the translation block and is configured to abut against the upper end surface of the sliding column.

[0018] Optionally, the bundling portion includes a bundling block and a rotating shaft column. The rotating shaft column is fixedly arranged on the bundling block. A bundling hole is provided in the bundling block. A plurality of bundling holes are provided, and the plurality of bundling holes correspond to the plurality of steel strands one by one.

[0019] An installation hole is provided on the fixed housing. A toothed groove is provided on the inner wall of the installation hole. The rotating shaft column is provided as a cylindrical structure. A sawtooth is provided on the outer side wall of the rotating shaft column. The rotating shaft column is configured to be arranged in the installation hole, and the sawtooth is configured to mesh with the toothed groove.

[0020] Optionally, two rotating shaft columns are provided, and the two rotating shaft columns are respectively fixedly arranged at the left and right ends of the bundling block. The fixed housing includes two fixed half-shells, the two fixed half-shells are arranged opposite to each other and are detachably connected. The installation holes are provided on both of the two fixed half-shells. The two rotating shaft columns at the left and right ends of the bundling block are respectively arranged in the installation holes on the two fixed half-shells.

[0021] Optionally, a first connecting plate and a second connecting plate are fixedly connected to the outer side wall of the fixed housing. The first connecting plate is horizontally arranged, the second connecting plate is vertically arranged, and both the first connecting plate and the second connecting plate are configured to be connected to the cable tower. Description of the Drawings

[0022] Figure 1 is a usage state diagram of the anchoring device of the present invention;

[0023] Figure 2 is a structural schematic diagram of the anchoring device of the present invention;

[0024] Figure 3 is an internal structural schematic diagram of the anchoring device of the present invention;

[0025] Figure 4 is Figure 3 the front view of the internal structure of the anchoring device in

[0026] Figure 5Schematic structural diagram of the second adjusting member of the present invention;

[0027] Figure 6 Schematic structural diagram of the fixed half shell of the present invention;

[0028] Figure 7 Schematic structural diagram of the steel strand clamping plate of the present invention;

[0029] Figure 8 Schematic structural diagram of the bundling part of the present invention.

[0030] Reference numerals:

[0031] 1. Fixed outer shell; 11. Fixed half shell; 111. Arc top plate; 112. Arc side plate; 12. Circular tube column; 121. Semi-circular tube; 13. Strip rail; 14. Mounting hole; 141. Tooth groove; 15. Fixed plate; 16. First connecting plate; 17. Second connecting plate; 18. Skylight; 2. Bundling part; 21. Bundling block; 211. Bundling hole; 22. Rotating shaft column; 221. Saw teeth; 3. Tightening part; 31. Translating block; 311. Strip groove; 32. Steel strand clamping plate; 321. Card slot; 322. Slide column; 33. First adjusting member; 34. Second adjusting member; 341. Fixed sleeve; 342. Adjusting stud; 343. Spring; 344. Pressing block; 4. Protective sleeve; 5. Cable tower; 6. Stay cable. Detailed implementation manners

[0032] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention is provided with reference to the accompanying drawings.

[0033] In this embodiment, an XYZ axis coordinate system is established. The positive direction of the X axis is the front, the negative direction of the X axis is the rear, the positive direction of the Y axis is the left, the negative direction of the Y axis is the right, the positive direction of the Z axis is the upper, and the negative direction of the Z axis is the lower.

[0034] To solve the above problems, as Figures 1 - 5 and Figure 7 shown, an anchoring device according to an embodiment of the present invention is applied to a cable-stayed bridge. The cable-stayed bridge includes a cable tower 5, a bridge deck and a stay cable 6. The stay cable 6 includes a plurality of steel strands. The anchoring device includes a fixed outer shell 1, a bundling part 2 and a tightening part 3. The fixed outer shell 1 is used for fixedly connecting to the cable tower 5. There are two bundling parts 2, and the two bundling parts 2 are arranged at the left and right ends of the fixed outer shell 1 and are respectively used for supporting the two ends of the steel strands passing through the fixed outer shell 1;

[0035] The tightening part 3 includes a translating block 31, a steel strand clamping plate 32 and a first adjusting member 33. The translating block 31 and the steel strand clamping plate 32 are both arranged inside the fixed outer shell 1, and the translating block 31 is used for connecting to the fixed outer shell 1;

[0036] A plurality of steel strand clamping plates 32 are provided, and the plurality of steel strand clamping plates 32 are all arranged at the lower end of the translation block 31. A first adjusting member 33 is arranged on the translation block 31. A plurality of first adjusting members 33 are provided, and the plurality of first adjusting members 33 are connected to the plurality of steel strand clamping plates 32 in one-to-one correspondence and are used to drive each steel strand clamping plate 32 to move in the vertical direction respectively;

[0037] A card slot 321 is formed in the lower end surface of each steel strand clamping plate 32, and the multiple steel strands passing through the fixed housing 1 are respectively used to pass through the card slots 321 of the corresponding steel strand clamping plates 32.

[0038] In this embodiment, by way of example, the fixed housing 1 is arranged in a structure with a hollow interior and openings at both the left and right ends, and is located above the bridge deck. The bundling part 2 is used to connect the interior and the exterior of the fixed housing 1, and the connection part with the steel strand is located above the card slot 321. The fixed housing 1 is fixedly arranged on the cable tower 5, and the middle part of the stay cable 6 is located inside the fixed housing 1; the left end of the stay cable 6 passes through the bundling part 2 arranged at the left end of the fixed housing 1 and is fixedly connected to the left bridge deck of the cable tower 5; the right end of the stay cable 6 passes through the bundling part 2 arranged at the right end of the fixed housing 1 and is fixedly connected to the right bridge deck of the cable tower 5. Since the stay cable 6 includes multiple steel strands and a plurality of steel strand clamping plates 32 are arranged inside the fixed housing 1, each steel strand is respectively arranged in the card slot 321 on the lower end surface of a steel strand clamping plate 32. When it is found that a steel strand in the stay cable 6 is tightened, it is necessary to confirm the steel strand clamping plate 32 corresponding to the steel strand and use the first adjusting member 33 to drive the steel strand clamping plate 32 to move downward. The downward movement of the steel strand clamping plate 32 can drive the middle part of the middle part of the steel strand to move downward; among them, the first adjusting member 33 can be set as a screw with the lower end connected to the steel strand clamping plate 32. Tighten the screw to push the steel strand clamping plate 32 downward, and loosen the screw to drive the steel strand clamping plate 32 to move upward. The first adjusting member 33 can be set as a telescopic cylinder. Connect the cylinder rod of the telescopic cylinder to the steel strand clamping plate 32, and start the telescopic cylinder to drive the steel strand clamping plate 32 to reciprocate in the vertical direction. The first adjusting member 33 can also be set as a linear motor. Connect the telescopic rod of the linear motor to the steel strand clamping plate 32, and start the linear motor to drive the steel strand clamping plate 32 to reciprocate in the vertical direction. Since the bundling parts 2 at both ends of the fixed housing 1 can be used as two fulcrums to support the two ends of the middle part of the steel strand and prevent the two ends of the steel strand from moving downward, when the middle part of the middle part of the steel strand moves downward, the untightened steel strand can be tightened.

[0039] In summary, the left end of the stay cable 6 passes through the bundling part 2 provided at the left end of the fixed housing 1 and is fixed to the left bridge deck of the cable tower 5. The right end of the stay cable 6 passes through the bundling part 2 provided at the right end of the fixed housing 1 and is fixed to the right bridge deck of the cable tower 5. Multiple steel strands in the middle of the stay cable 6 are respectively arranged in the card slots 321 on the lower end surfaces of multiple steel strand clamping plates 32. The first adjusting member 33 can be used to drive the steel strand clamping plates 32 to move downward relative to the translation block 31, that is, each steel strand clamping plate 32 can be adjusted individually. Thus, the first adjusting member 33 can be used to adjust the un-tightened steel strands to ensure that each steel strand of the stay cable 6 can be tightened, thereby ensuring the tensile force of the stay cable 6 on the bridge deck and ensuring the stability of the bridge.

[0040] At the same time, one end of the stay cable 6 is connected to the bridge deck on one side of the cable tower 5, and the other end of the stay cable 6 is connected to the bridge deck on the other side of the cable tower 5. Multiple steel strands in the middle of the stay cable 6 are arranged in the fixed housing 1 and are respectively arranged in the card slots 321 on the lower end surfaces of multiple steel strand clamping plates 32. Then, one stay cable 6 can be used to connect two sections of bridge decks on both sides of the cable tower 5, which can ensure that the two sections of bridge decks are subjected to the same force and thus ensure the stability of the bridge.

[0041] Optionally, the left and right ends of the lower end surface of the steel strand clamping plate 32 are set as rounded corners.

[0042] In this embodiment, the left and right ends of the lower end surface of the steel strand clamping plate 32 are set as rounded corners. When the steel strands are tightened, a smoother contact surface is provided when the steel strands contact the steel strand clamping plate 32, avoiding excessive wear between the steel strand clamping plate 32 and the steel strands.

[0043] Optionally, a sunk groove is formed on the lower end surface of the translation block 31, and multiple steel strand clamping plates 32 are all arranged in the sunk groove and are arranged in sequence in the front-rear direction.

[0044] In this embodiment, exemplarily, multiple steel strand clamping plates 32 are arranged in the sunk groove, wherein the front side surface of the foremost steel strand clamping plate 32 abuts against the front side wall of the sunk groove, and the rear side surface of the rearmost steel strand clamping plate 32 abuts against the rear side wall of the sunk groove.

[0045] Optionally, as Figure 4 shown, the tightening part 3 further includes a second adjusting member 34, which is arranged on the fixed housing 1 and is used to drive the translation block 31 to move in the vertical direction.

[0046] In this embodiment, exemplarily, when adjusting the tightness of the steel strands, initially, the second adjusting member 34 can be used to drive the translation block 31 to move downward in the vertical direction. Since a plurality of steel strand clamping plates 32 are arranged at the lower end of the translation block 31, the translation block 31 can synchronously drive the plurality of steel strand clamping plates 32 to move downward during the downward movement. Since a plurality of steel strands are correspondingly arranged in the card slots 321 of the plurality of steel strand clamping plates 32, the downward movement of the plurality of steel strand clamping plates 32 can drive the middle parts of the middle portions of the plurality of steel strands to move downward. At the same time, the bunching portions 2 at both ends of the fixed housing 1 can serve as two fulcrums for supporting the two ends of the steel strands to prevent the two ends of the steel strands from moving downward. At this time, a plurality of steel strands can be tightened simultaneously; wherein, the second adjusting member 34 can be set as a telescopic cylinder, and the cylinder rod of the telescopic cylinder is connected to the translation block 31. Starting the telescopic cylinder can drive the translation block 31 to perform reciprocating motion in the vertical direction. The second adjusting member 34 can also be set as a linear motor, and the telescopic rod of the linear motor is connected to the translation block 31. Starting the linear motor can drive the translation block 31 to perform reciprocating motion in the vertical direction. After that, the tightness of the steel strands in the stay cable 6 is detected, and the first adjusting member 33 is used to drive the steel strand clamping plate 32 to move downward. Then, the downward movement of the steel strand clamping plate 32 can drive the middle parts of the middle portions of the steel strands to move downward. At the same time, the bunching portions 2 at both ends of the fixed housing 1 can serve as two fulcrums for supporting the two ends of the steel strands to prevent the two ends of the steel strands from moving downward. At this time, the steel strands that have not been tightened can be tightened.

[0047] In summary, bunching portions 2 are arranged at the left and right ends of the fixed housing 1 for connecting the left end and the right end of the steel strands respectively. Steel strand clamping plates 32 are arranged inside the fixed housing 1, and the steel strands are correspondingly arranged in the card slots 321 on the lower end surfaces of the steel strand clamping plates 32. The second adjusting member 34 can drive the translation block 31 to slide in the vertical direction, which can drive a plurality of steel strand clamping plates 32 to move downward, and then can drive the middle parts of the middle portions of a plurality of steel strands to move downward simultaneously. Thus, when using the second adjusting member 34 to drive the translation block 31 to move downward, the distance that the plurality of steel strand clamping plates 32 are driven to move downward is larger, while the distance that the steel strand clamping plate 32 is directly driven to move downward by the first adjusting member 33 is smaller. Then, during the construction of the cable-stayed bridge, by first using the second adjusting member 34 and then using the first adjusting member 33, on the one hand, the steel strands can be roughly adjusted first and then finely adjusted, which can ensure that each steel strand of the stay cable 6 can be tightened, thereby ensuring the tension of the stay cable 6 on the bridge deck. On the other hand, using the second adjusting member 34 to drive the translation block 31 to move downward and drive a plurality of steel strand clamping plates 32 to move downward simultaneously can tighten a plurality of steel strands in the stay cable 6 at the same time. Then, using the first adjusting member 33 to drive a single steel strand clamping plate to move downward respectively to tighten the steel strands that have not been tightened yet can reduce the adjustment time compared with only using the first adjusting member 33 to adjust a single steel strand, which is beneficial to improving the efficiency of bridge erection.

[0048] Optionally, as Figure 3 and Figure 4 shown, the second adjusting member 34 includes a fixed sleeve 341, an adjusting stud 342, and a spring 343. The fixed sleeve 341 is fixedly connected to the fixed housing 1. The adjusting stud 342 is vertically arranged and threadedly connected to the inner wall of the fixed sleeve 341. The lower end of the adjusting stud 342 extends into the interior of the fixed housing 1. The spring 343 is located between the adjusting stud 342 and the translation block 31, and the upper and lower ends of the spring 343 are respectively abutted against the lower end face of the adjusting stud 342 and the upper end face of the translation block 31.

[0049] In this embodiment, during the process of using the second adjusting member 34 to drive the translation block 31 to move downward in the vertical direction, since the fixed sleeve 341 is fixedly connected to the fixed housing 1 and the adjusting stud 342 is threadedly connected to the fixed sleeve 341, tightening the adjusting stud 342 can drive the adjusting stud 342 to move vertically downward. Since the upper and lower ends of the spring 343 are respectively abutted against the lower end face of the adjusting stud 342 and the upper end face of the translation block 31, during the vertical downward movement of the adjusting stud 342, the translation block 31 can be driven to move downward, ensuring the driving effect of the second adjusting member 34 on the translation block 31. At the same time, by providing the spring 343, the steel strand can still have a certain elastic recovery ability when tightened, avoiding the steel strand from being overly tightened and broken, ensuring the tensioning effect of the steel strand on the bridge deck, and thus ensuring the stability of the bridge.

[0050] Optionally, as Figure 2 shown, a circular tube column 12 is fixedly provided at the upper end of the fixed housing 1. The lower part structure of the fixed sleeve 341 is sleeved on the outer side wall of the circular tube column 12. The circular tube column 12 is provided as a hollow structure with both ends open. The lower end of the adjusting stud 342 is arranged inside the circular tube column 12, and the upper end of the adjusting stud 342 is threadedly connected to the inner side wall of the upper part structure of the fixed sleeve 341.

[0051] In this embodiment, exemplarily, the fixed sleeve 341 is sleeved on the circular tube column 12, and a plurality of riveting screws are used to fix the fixed sleeve 341 on the circular tube column 12 in the vertical direction. The lower end of the adjusting stud 342 is extended into the circular tube column 12, and the middle part of the adjusting stud 342 is threadedly connected to the inner side wall of the upper part structure of the fixed sleeve 341. During the process of using the second adjusting member 34 to drive the translation block 31 to move downward in the vertical direction, when the adjusting stud 342 is tightened, the adjusting stud 342 can move vertically downward relative to the fixed sleeve 341.

[0052] Optionally, as Figures 2 - 4 shown, the anchoring device further includes a protective sleeve 4, and the protective sleeve 4 covers the upper end of the circular tube column 12.

[0053] In this embodiment, by way of example, the protective sleeve 4 is provided with a hollow structure that is open at the lower end and closed at the upper end. The protective sleeve 4 is sleeved on the upper end of the round tube column 12, and the protective sleeve 4 and the round tube column 12 can be used to protect the adjusting bolts and riveting screws to prevent them from being damaged by erosion. At the same time, the inner diameter of the inner wall of the protective sleeve 4 is slightly larger than or equal to the outer diameter of the outer wall of the round tube column 12, and the frictional force between the protective sleeve 4 and the round tube column 12 can be used to prevent the protective sleeve 4 from detaching from the round tube column 12.

[0054] Optionally, as Figure 4 shown, the second adjusting member 34 further includes a pressing block 344. The pressing block 344 is disposed between the adjusting stud 342 and the spring 343, and the upper end surface of the pressing block 344 abuts against the lower end surface of the adjusting stud 342, and the lower end surface of the pressing block 344 abuts against the upper end of the spring 343.

[0055] In this embodiment, by way of example, the pressing block 344 is provided with a cylindrical structure, and both the upper end surface and the lower end surface of the pressing block 344 are provided with smooth planes. During the process of using the second adjusting member 34 to drive the translation block 31 to move downward in the vertical direction, since the pressing block 344 is disposed between the adjusting stud 342 and the spring 343, when the adjusting stud 342 is tightened, it can drive the pressing block 344 to move downward. During the downward movement of the pressing block 344, it can drive the spring 343 to move downward, and then the spring 343 acts on the translation block 31 to drive the translation block 31 to move downward. Thus, since the adjusting stud 342 descends in a spiral manner during the tightening process, there is relative movement between it and the spring 343. When the frictional force between the two is relatively large, it may cause the adjusting stud 342 to be unable to be tightened further. By disposing the pressing block 344 between the adjusting stud 342 and the spring 343 and providing both the upper end surface and the lower end surface of the pressing block 344 with smooth planes, relative rotation occurs between the adjusting stud 342 and the upper end surface of the pressing block 344, which can prevent the adjusting stud 342 and the spring 343 from being stuck due to a large frictional force, thereby ensuring the function effect of the second adjusting member 34.

[0056] Optionally, as Figure 3 、 Figure 4 and Figure 6 shown, a vertically arranged strip rail 13 is provided on the inner side wall of the fixed housing 1, and a vertically arranged strip groove 311 is provided on the translation block 31. The strip rail 13 is adapted to be disposed in the strip groove 311.

[0057] In this embodiment, during the process of using the second adjusting member 34 to drive the translation block 31 to move downward in the vertical direction, the translation block 31 moves relative to the strip rail 13 on the fixed half shell 11 by relying on the strip groove 311. Since both the strip rail 13 and the strip groove 311 are vertically arranged, it can ensure that the translation block 31 moves in the vertical direction. Thus, it can prevent the movement path of the translation block 31 from deviating, and can drive a plurality of steel strand clamping plates 32 to move downward synchronously, thereby ensuring uniform force on multiple steel strands.

[0058] Optionally, as Figures 3 - 5 shown, the first adjusting member 33 is arranged as a contact screw corresponding to the steel strand clamping plate 32. A sliding column 322 is fixedly connected to the upper end of the steel strand clamping plate 32. A sliding groove is formed in the middle of the translation block 31. The sliding column 322 is used to be arranged in the sliding groove. The contact screw is threadedly connected to the upper end of the translation block 31. The lower end surface of the contact screw passes through the translation block 31 and is used to abut against the upper end surface of the sliding column 322.

[0059] In this embodiment, exemplarily, a plurality of sliding grooves are formed, and the plurality of sliding grooves are distributed in the front-rear direction. During the process of using the first adjusting member 33 to drive the steel strand clamping plate 32 to move downward in the vertical direction, the contact screw is tightened to drive the sliding column 322 to move in the vertical direction of the sliding groove. Since the sliding column 322 is fixedly connected to the upper end of the steel strand clamping plate 32, during the downward movement of the sliding column 322, the steel strand clamping plate 32 is driven to move downward synchronously. Thus, the contact screw can be used to adjust each steel strand clamping plate 32 individually, thereby ensuring the effect of the first adjusting member 33 for individually driving the steel strand clamping plate 32 to move in the vertical direction.

[0060] Optionally, two rows of contact screws are arranged, and the two rows of contact screws are respectively located at the left and right ends of the sliding column 322.

[0061] In this embodiment, two rows of contact screws are arranged, that is, a contact screw is correspondingly arranged at the left and right ends of each sliding column 322. During the process of using the first adjusting member 33 to drive the steel strand clamping plate 32 to move downward in the vertical direction, when the two contact screws are tightened simultaneously, the left and right ends of the sliding column 322 can be subjected to the same force, so that the sliding column 322 moves downward synchronously as a whole, thereby driving the steel strand clamping plate 32 to move downward synchronously as a whole. Then, the steel strands in the card slots on the lower end surface of the steel strand clamping plate 32 can also move downward synchronously. Thus, it is beneficial to make the forces at both ends of the steel strands the same, thereby ensuring the stability of the bridge.

[0062] Optionally, as Figure 2 shown, a skylight 18 is formed in the upper end of the fixed housing 1.

[0063] In this embodiment, the staff can directly act on the contact screw through the skylight 18 and adjust the steel strand clamping plate 32.

[0064] Optionally, as Figure 8 shown, the bundling part 2 includes a bundling block 21 and a rotating shaft column 22. The rotating shaft column 22 is fixedly arranged on the bundling block 21. A bundling hole 211 is formed in the bundling block 21. There are multiple bundling holes 211, and the multiple bundling holes 211 correspond to multiple steel strands one by one;

[0065] An installation hole 14 is formed in the fixed housing 1. A tooth groove 141 is arranged on the inner wall of the installation hole 14. The rotating shaft column 22 is arranged in a cylindrical structure, and a sawtooth 221 is arranged on the outer side wall of the rotating shaft column 22. The rotating shaft column 22 is used to be arranged in the installation hole 14, and the sawtooth 221 is used to mesh with the tooth groove 141.

[0066] In this embodiment, multiple steel strands pass through the multiple bundling holes 211 one by one. The rotating shaft column 22 is rotated by a certain angle, and then the rotating shaft column 22 is arranged in the installation hole 14. By using the sawtooth 221 on the outer side wall of the rotating shaft column 22 to mesh with the tooth groove 141 on the inner wall of the installation hole 14, the rotating shaft column 22 does not rotate relative to the fixed housing 1, so as to ensure that the bundling block 21 can be rotated to a specific angle to tighten one end of the steel strand. Thus, through the meshing of the sawtooth on the rotating shaft column 22 and the tooth groove 141 on the inner wall of the installation hole 14, the bundling block 21 can conform to the tensioning angle of the stay cable 6, so that each anchoring device can be adapted to different installation heights on the cable tower 5.

[0067] Optionally, the multiple bundling holes 211 are distributed in a circular array.

[0068] In this embodiment, exemplarily, the bundling holes 211 have the functions of restricting and guiding the steel strands to avoid entanglement between the steel strands. Distributing the multiple bundling holes 211 in a circular array can make multiple steel strands be combined into a steel strand bundle in the tightest state, which is convenient for combining multiple steel strands into the stay cable 6.

[0069] Optionally, there are two rotating shaft columns 22, and the two rotating shaft columns 22 are respectively and fixedly arranged at the left and right ends of the bundling block; the fixed housing 1 includes two fixed half shells 11. The two fixed half shells 11 are arranged oppositely and detachably connected. Installation holes 14 are formed on both the two fixed half shells 11, and the two rotating shaft columns 22 at the left and right ends of the bundling block 21 are respectively arranged in the installation holes 14 on the two fixed half shells 11.

[0070] In this embodiment, by way of example, the circular pipe column 12 includes two semi-circular pipes 121 and is formed by closing and shaping the two semi-circular pipes 121. The strip rail 13 is located on the inner wall of the fixed half shell 11. When assembling the anchoring device, the bundling block 21, the translation block 31 and the steel strand clamping plate 32 are arranged between the two fixed half shells 11, and the rotating shaft columns 22 at the front and rear ends of the bundling block 21 are respectively arranged in the mounting holes 14 on the two fixed half shells 11. Thus, the fixed outer shell 1 is set as two detachably connected fixed half shells 11, which can quickly assemble the anchoring device.

[0071] Optionally, as Figures 2 - 4 and Figure 6 shown, the fixed half shell 11 includes an arc top plate 111 and an arc side plate 112. Fixing plates 15 are arranged at both ends of the arc top plate 111, and the two fixing plates 15 are connected by snap-fastening or fixed by screws.

[0072] In this embodiment, by way of example, the mounting hole 14 is located on the arc side plate 112, and the strip rail 13 is located on the inner wall of the arc side plate 112. When the two fixed half shells 11 are arranged opposite to each other and closed, the two arc top plates 111 are joined. In one structure, a clamping block is arranged on one fixing plate 15, and a clamping opening is arranged on the other fixing plate 15. The clamping block is arranged in the clamping opening, and the friction force between the clamping block and the inner wall of the clamping opening is used to connect the two fixed half shells 11. In another structure, the two fixing plates 15 on the two fixed half shells 11 are mutually attached and fixed by screws. Thus, it is convenient to assemble the anchoring device.

[0073] Optionally, as Figure 2 and Figure 6 shown, a first connecting plate 16 and a second connecting plate 17 are fixedly connected to the outer side wall of the fixed outer shell 1. The first connecting plate 16 is horizontally arranged, and the second connecting plate 17 is vertically arranged.

[0074] In this embodiment, by way of example, both the first connecting plate 16 and the second connecting plate 17 are located on the outer wall of the arc side plate 112. The fixed outer shell 1 needs to be connected to the cable tower 5 by concrete or screws. When connecting by concrete, the horizontally arranged first connecting plate 16 and the vertically arranged second connecting plate 17 are fixedly connected to the outer side wall of the fixed outer shell 1, which can increase the contact area between the fixed outer shell 1 and the concrete, thereby enhancing the connection strength between the fixed outer shell 1 and the cable tower 5; when connecting by screws, the fixed outer shell 1 can be connected to the cable tower 5 through the first connecting plate 16 or the second connecting plate 17 respectively at the same time, thereby enhancing the connection strength between the fixed outer shell 1 and the cable tower 5.

[0075] Although the present disclosure is disclosed as above, the scope of protection of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the scope of protection of the present invention.

Claims

1. An anchoring device is applied to a cable-stayed bridge. The cable-stayed bridge includes a pylon (5), a bridge deck, and stay cables (6). The stay cables (6) include multiple steel strands, and it is characterized in that, It includes a fixed housing (1), a bunching part (2), and a tensioning part (3). The fixed housing (1) is used for fixedly connecting to the cable tower (5). There are two bunching parts (2), and the two bunching parts (2) are arranged at the left and right ends of the fixed housing (1) respectively, and are respectively used for supporting both ends of the steel strands passing through the fixed housing (1). The tensioning part (3) includes a translation block (31), a steel strand clamping plate (32), and a first adjusting member (33). The translation block (31) and the steel strand clamping plate (32) are both arranged inside the fixed housing (1), and the translation block (31) is used for connecting to the fixed housing (1). There are multiple steel strand clamping plates (32), and the multiple steel strand clamping plates (32) are all arranged at the lower end of the translation block (31). The first adjusting member (33) is arranged on the translation block (31). There are multiple first adjusting members (33), and the multiple first adjusting members (33) are connected to the multiple steel strand clamping plates (32) in one-to-one correspondence and are used for respectively driving each steel strand clamping plate (32) to move in the vertical direction. A card slot (321) is formed on the lower end surface of each steel strand clamping plate (32), and multiple steel strands passing through the fixed housing (1) are respectively used for passing through the card slots (321) of the corresponding steel strand clamping plates (32). The tensioning part (3) further includes a second adjusting member (34). The second adjusting member (34) is arranged on the fixed housing (1) and is used for driving the translation block (31) to move in the vertical direction. The second adjusting member (34) includes a fixed sleeve (341), an adjusting stud (342), and a spring (343). The fixed sleeve (341) is fixedly connected to the fixed housing (1). The adjusting stud (342) is vertically arranged and threadedly connected to the inner wall of the fixed sleeve (341). The lower end of the adjusting stud (342) extends into the interior of the fixed housing (1). The spring (343) is located between the adjusting stud (342) and the translation block (31), and the upper and lower ends of the spring (343) are respectively in contact with the lower end surface of the adjusting stud (342) and the upper end surface of the translation block (31).

2. The anchoring device according to claim 1, characterized in that, A circular pipe column (12) is fixedly arranged at the upper end of the fixed housing (1). The lower part structure of the fixed sleeve (341) is sleeved on the outer side wall of the circular pipe column (12). The circular pipe column (12) is arranged as a hollow structure with openings at both ends. The lower end of the adjusting stud (342) is arranged inside the circular pipe column (12), and the upper end of the adjusting stud (342) is threadedly connected to the inner side wall of the upper part structure of the fixed sleeve (341).

3. The anchoring device according to claim 1, characterized in that, The second adjusting member (34) further includes a pressing block (344). The pressing block (344) is arranged between the adjusting stud (342) and the spring (343), and the upper end surface of the pressing block (344) is in contact with the lower end surface of the adjusting stud (342), and the lower end surface of the pressing block (344) is in contact with the upper end of the spring (343).

4. The anchoring device according to claim 1, characterized in that, The inner side wall of the fixed housing (1) is provided with a vertically arranged strip rail (13), and the translation block (31) is provided with a vertically arranged strip groove (311), and the strip rail (13) is used to be arranged in the strip groove (311).

5. The anchoring device according to claim 1, characterized in that, The first adjusting member (33) is arranged as a contact screw corresponding to the steel strand clamping plate (32). A sliding column (322) is fixedly connected to the upper end of the steel strand clamping plate (32). A sliding groove is formed in the middle of the translation block (31). The sliding column (322) is used to be arranged in the sliding groove. The contact screw is threadedly connected to the upper end of the translation block (31), and the lower end surface of the contact screw passes through the translation block (31) and is used to abut against the upper end surface of the sliding column (322).

6. The anchoring device according to claim 1, characterized in that, The bundling part (2) includes a bundling block (21) and a rotating shaft column (22). The rotating shaft column (22) is fixedly arranged on the bundling block (21). A bundling hole (211) is formed in the bundling block (21). There are a plurality of bundling holes (211), and the plurality of bundling holes (211) correspond to the plurality of steel strands one by one; The fixed housing (1) is provided with a mounting hole (14). The inner wall of the mounting hole (14) is provided with a tooth groove (141). The rotating shaft column (22) is arranged as a cylindrical structure. A sawtooth (221) is arranged on the outer side wall of the rotating shaft column (22). The rotating shaft column (22) is used to be arranged in the mounting hole (14), and the sawtooth (221) is used to mesh with the tooth groove (141).

7. The anchoring device according to claim 6, characterized in that, There are two rotating shaft columns (22), and the two rotating shaft columns (22) are respectively fixedly arranged at the left and right ends of the bundling block (21); the fixed housing (1) includes two fixed half shells (11). The two fixed half shells (11) are arranged oppositely and are detachably connected. The mounting holes (14) are formed in both of the two fixed half shells (11). The two rotating shaft columns (22) at the left and right ends of the bundling block (21) are respectively arranged in the mounting holes (14) on the two fixed half shells (11).

8. The anchoring device according to claim 1, characterized in that, A first connecting plate (16) and a second connecting plate (17) are fixedly connected to the outer side wall of the fixed housing (1). The first connecting plate (16) is horizontally arranged, and the second connecting plate (17) is vertically arranged. Both the first connecting plate (16) and the second connecting plate (17) are used to be connected to the cable tower (5).

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