Bridge steel structure connecting piece with fine adjustment function

Abstract

The utility model discloses a bridge steel structure connecting piece with a fine adjustment function, and relates to the technical field of bridge construction. The device comprises two positioning sleeves, the two positioning sleeves are the same and are arranged in a mirror image mode, the positioning sleeve located on the rear side is fixedly connected with two first fixing discs, the positioning sleeve located on the front side is fixedly connected with two second fixing discs, and a connecting sleeve is arranged between the two second fixing discs. The two limiting blocks slide into the two limiting grooves in the relative movement process, so that installation and connection between the positioning sleeve and the connecting sleeve are achieved, the two-way threaded rod only needs to be rotated to drive the two limiting blocks to move out of the limiting grooves in the back-to-back mode in the disassembly process, disassembly is convenient and flexible, installation is rapid and labor-saving, and the assembly efficiency is improved. And when the connecting sleeve or the positioning sleeve is damaged and deformed, the connecting sleeve or the positioning sleeve can be independently replaced, so that the bridge steel structure connecting piece is more economical, and the practicability of the bridge steel structure connecting piece is further improved.

Description

Technical Field

[0001] This utility model belongs to the field of bridge construction technology, and specifically relates to a bridge steel structure connector with fine-tuning function. Background Technology

[0002] Currently, in the process of road and bridge construction, it is often necessary to use steel structure connectors to assemble and connect steel columns and steel pipes. Specifically, the steel columns are set vertically, while the steel pipes are distributed horizontally. Then, during construction, when the end of the steel pipe close to the steel column is connected to the steel column through the steel structure connector, the steel pipe can be assembled onto the steel column.

[0003] CN202520350819.4 A steel structure connector for road and bridge construction involves first fixing a positioning sleeve onto a steel column, then inserting the end of a steel pipe near the steel column into the connecting sleeve, and fixing the position of the steel pipe on the connecting sleeve. Since the connecting sleeve and the fixing plate are rotatably connected, the connecting sleeve can be rotated in the horizontal direction. Therefore, during use, the angle between the steel pipe and the steel column in the horizontal direction can be adjusted according to the actual construction situation for ease of use. After adjustment, the steel pipe can be locked and fixed to the steel column using a locking mechanism for easy assembly.

[0004] However, in this comparative example, the connecting sleeve is rotatably connected to the fixed plate via a rotating shaft. Because the rotating shaft is fixedly connected to the fixed plate, the connecting sleeve and the fixed plate cannot be disassembled and separated. When the connecting sleeve or positioning sleeve is damaged or deformed, the entire steel structure connector needs to be replaced. It is impossible to disassemble and replace the damaged parts individually, which will result in a waste of resources, reduce the flexibility of the steel structure connector, and thus reduce the practicality of the steel structure connector. Utility Model Content

[0005] In the comparative example, the connecting sleeve is rotatably connected to the fixed plate via a rotating shaft. Because the rotating shaft is fixedly connected to the fixed plate, the connecting sleeve and the fixed plate cannot be disassembled and separated. When the connecting sleeve or positioning sleeve is damaged or deformed, the entire steel structure connector needs to be replaced, as the damaged parts cannot be disassembled and replaced individually. This results in a waste of resources, reduces the flexibility of the steel structure connector, and consequently reduces its practicality. This utility model proposes a bridge steel structure connector with a fine-tuning function to overcome the above-mentioned technical problems existing in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a bridge steel structure connector with a fine-tuning function, comprising two identical positioning sleeves arranged in a mirror image. Two first fixing discs are fixedly connected to the rear positioning sleeve, and two second fixing discs are fixedly connected to the front positioning sleeve. A connecting sleeve is provided between the two second fixing discs, and an installation mechanism is provided between the two second fixing discs. The installation mechanism is used to install the connecting sleeve between the two second fixing discs. An adjustment mechanism is provided on each of the two second fixing discs to adjust the angle between the connecting sleeve and the positioning sleeve. A fixing mechanism is provided on each of the first fixing discs to fix the two positioning sleeves.

[0008] Furthermore, the installation mechanism includes two positioning blocks, which are fixedly connected to the outer surface of the positioning sleeve located on the front side. The outer surfaces of the two positioning blocks on opposite sides are fixedly connected to the outer surfaces of the two second fixing discs on adjacent sides. Each positioning block has a sliding arc groove extending from its lower surface on its upper surface, and a limit block is slidably connected in each sliding arc groove.

[0009] Furthermore, the limiting block is arc-shaped and is adapted to the sliding arc groove. Two limiting blocks are provided with bidirectional threaded rods. The two limiting blocks are threaded onto the two opposite threads of the bidirectional threaded rods. The upper and lower outer surfaces of the connecting sleeve are provided with limiting grooves. The adjacent outer surfaces of the two limiting blocks slide into the two limiting grooves respectively.

[0010] Furthermore, the bottom wall of each limiting groove is provided with a support groove, which communicates with the interior of the limiting groove. The support groove extends out of the outer surface of the connecting sleeve near the positioning sleeve, and the support groove is slidably connected to the bidirectional threaded rod.

[0011] Furthermore, the adjustment mechanism includes two connecting arc grooves, which are formed on the outer surfaces of the two adjacent sides of the two second fixed disks. The connecting arc grooves are arc-shaped, and connecting blocks are slidably connected in each connecting arc groove. The two connecting blocks are rotatably sleeved on the outer surface of the bidirectional threaded rod. Limiting arc grooves are formed on the outer surfaces of the two opposite sides of the two second fixed disks.

[0012] Furthermore, the limiting arc groove communicates with the corresponding connecting arc groove inside. The limiting arc groove is arc-shaped, and a limiting plate is slidably connected inside each limiting arc groove. The two limiting plates are rotatably sleeved on the outer surface of the bidirectional threaded rod. The opposite outer surfaces of the two limiting arc grooves are fixedly connected to the opposite outer surfaces of the two limiting plates. The upper and lower ends of the bidirectional threaded rod rotatably pass through the opposite outer surfaces of the two limiting plates. Hexagonal prism blocks are fixedly connected to the upper and lower ends of the bidirectional threaded rod, and the hexagonal prism blocks are all located inside the corresponding limiting arc groove.

[0013] Furthermore, the outer surface of the positioning block is provided with a plurality of first threaded holes, the first threaded holes communicating with the interior of the sliding arc groove, and a fixing bolt being threadedly connected to the first threaded hole. The fixing bolt extends into the corresponding sliding arc groove through the first threaded hole, and one end of the fixing bolt extending into the sliding arc groove contacts the outer surface of the corresponding limiting block.

[0014] Furthermore, the fixing mechanism includes four fixing blocks, which are fixedly connected to the outer surfaces of the two adjacent sides of the two first fixing discs. Two second threaded holes are opened on the outer surface of the two positioning blocks near the fixing blocks. Each fixing block is provided with a countersunk hole, which is adapted to the second threaded hole.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model achieves the installation and connection between the positioning sleeve and the connecting sleeve by having the two limiting blocks slide into the two limiting grooves during relative movement, thus preventing the connecting sleeve from detaching from the two positioning blocks. During disassembly, simply rotate the bidirectional threaded rod to move the two limiting blocks out of the limiting grooves in opposite directions. Disassembly is convenient and flexible, and installation is quick and labor-saving. If the connecting sleeve or positioning sleeve is damaged or deformed, the connecting sleeve or positioning sleeve can be replaced separately, which is more economical and increases the practicality of bridge steel structure connectors.

[0017] 2. This utility model, by pushing the connecting sleeve, causes two limiting blocks to slide in the sliding arc groove, two connecting blocks to slide in the connecting arc groove, and two limiting plates to slide in the limiting arc groove. Because the limiting arc groove, connecting arc groove, and sliding arc groove are all arc-shaped, the angle between the connecting sleeve and the positioning sleeve also changes during the sliding of the limiting blocks, connecting blocks, and limiting plates, thereby achieving the function of adjusting the angle between the connecting sleeve and the positioning sleeve, and thus increasing the applicability and flexibility of the bridge steel structure connector.

[0018] 3. This utility model allows for the installation of multiple connecting sleeves on the first fixing plate, with each connecting sleeve having a different size. Because the connection between the connecting sleeve and the positioning sleeve is achieved by sliding the limiting block into the limiting groove, the connection can be made possible by adjusting the distance between the two limiting blocks. This allows connecting sleeves of different sizes to be installed and connected on the positioning sleeve, thereby increasing the practicality and flexibility of the bridge steel structure connectors.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the fixing block structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the positioning sleeve structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the connecting sleeve structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the limiting plate structure of this utility model;

[0026] Figure 6 This is a vertical cross-sectional view of the second fixed disk of this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Positioning sleeve; 2. First fixing plate; 3. Second fixing plate; 4. Fixing block; 5. Positioning block; 6. Connecting sleeve; 7. Sliding arc groove; 8. Limiting arc groove; 9. Limiting plate; 10. Bidirectional threaded rod; 11. Limiting block; 12. Hexagonal prism block; 13. Connecting block; 14. Connecting arc groove; 15. Fixing bolt; 16. Limiting groove; 17. Support groove; 18. First threaded hole; 19. Countersunk hole; 20. Second threaded hole. Detailed Implementation

[0029] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0030] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0031] Please see Figures 1-6 As shown, this utility model is a bridge steel structure connector with fine-tuning function, including two positioning sleeves 1. The two positioning sleeves 1 are identical and arranged in a mirror image. Two first fixing discs 2 are fixedly connected to the positioning sleeve 1 located on the rear side, and two second fixing discs 3 are fixedly connected to the positioning sleeve 1 located on the front side. A connecting sleeve 6 is arranged between the two second fixing discs 3. An installation mechanism is arranged between the two second fixing discs 3. The installation mechanism is used to install and connect the connecting sleeve 6 between the two second fixing discs 3. An adjustment mechanism is arranged on the two second fixing discs 3. The adjustment mechanism can be used to adjust the angle between the connecting sleeve 6 and the positioning sleeve 1. A fixing mechanism is arranged on the first fixing disc 2. The fixing mechanism is used to fix the two positioning sleeves 1.

[0032] In use, the two positioning sleeves 1 are fixedly fitted onto the steel column to be installed using a fixing mechanism, thus achieving fixed installation between the two positioning sleeves 1 and between the first fixing plate 2 and the second fixing plate 3. Then, the connecting sleeve 6 is placed between the two second fixing plates 3. By rotating the installation mechanism, the connecting sleeve 6 is connected to the positioning sleeve 1, ensuring that the connecting sleeve 6 cannot detach from the positioning sleeve 1. Similarly, rotating the installation mechanism can release the connection between the connecting sleeve 6 and the positioning sleeve 1, making disassembly flexible and convenient. Under the action of the adjustment mechanism, when the connecting sleeve 6 is pushed, it rotates around the steel column, thereby adjusting the angle between the connecting sleeve 6 and the positioning sleeve 1, further enhancing the installation flexibility between the connecting sleeve 6 and the positioning sleeve 1.

[0033] In one embodiment, the installation mechanism includes two positioning blocks 5, which are fixedly connected to the outer surface of the positioning sleeve 1 located on the front side. The outer surfaces of the two positioning blocks 5 on opposite sides are fixedly connected to the outer surfaces of the two second fixing discs 3 on adjacent sides. The upper surface of each positioning block 5 is provided with a sliding arc groove 7 extending out of its lower surface, and a limit block 11 is slidably connected in each sliding arc groove 7.

[0034] The limiting block 11 is arc-shaped and is adapted to the sliding arc groove 7. Two bidirectional threaded rods 10 are provided on the two limiting blocks 11. The two limiting blocks 11 are threaded onto the two opposite threads of the bidirectional threaded rods 10. The upper and lower outer surfaces of the connecting sleeve 6 are provided with limiting grooves 16. The adjacent outer surfaces of the two limiting blocks 11 slide into the two limiting grooves 16 respectively.

[0035] The bottom wall of the limiting groove 16 is provided with a support groove 17. The support groove 17 communicates with the interior of the limiting groove 16. The support groove 17 extends out of the outer surface of the connecting sleeve 6 near the positioning sleeve 1. The support groove 17 is slidably connected to the bidirectional threaded rod 10.

[0036] The connecting sleeve 6 is placed between the two positioning blocks 5, and the bidirectional threaded rod 10 is slidably connected in the two support grooves 17. Then, by rotating the hexagonal prism block 12, the bidirectional threaded rod 10 can be rotated. The rotation of the bidirectional threaded rod 10 causes the two limiting blocks 11 to move in opposite or opposite directions. When the two limiting blocks 11 move relative to each other, they move closer to each other and slide into the two limiting grooves 16. At this time, the connecting sleeve 6 cannot be detached from the two positioning blocks 5, thus realizing the installation connection between the positioning sleeve 1 and the connecting sleeve 6. When disassembling, simply rotate the bidirectional threaded rod 10 to move the two limiting blocks 11 out of the limiting grooves 16 in opposite directions. Disassembly is convenient and flexible, and installation is quick and labor-saving. If the connecting sleeve 6 or the positioning sleeve 1 is damaged or deformed, the connecting sleeve 6 or the positioning sleeve 1 can be replaced separately, which is more economical and increases the practicality of the bridge steel structure connector.

[0037] In one embodiment, the adjustment mechanism includes two connecting arc grooves 14, which are formed on the outer surfaces of the two adjacent sides of the two second fixed disks 3. The connecting arc grooves 14 are arc-shaped, and connecting blocks 13 are slidably connected in each connecting arc groove 14. The two connecting blocks 13 are rotatably sleeved on the outer surface of the bidirectional threaded rod 10. Limiting arc grooves 8 are formed on the outer surfaces of the two opposite sides of the two second fixed disks 3.

[0038] The limiting arc groove 8 communicates with the corresponding connecting arc groove 14. The limiting arc groove 8 is arc-shaped. Each limiting arc groove 8 is slidably connected to a limiting plate 9. The two limiting plates 9 are rotatably sleeved on the outer surface of the bidirectional threaded rod 10. The opposite outer surfaces of the two limiting arc grooves 8 are fixedly connected to the opposite outer surfaces of the two limiting plates 9. The upper and lower ends of the bidirectional threaded rod 10 rotatably pass through the opposite outer surfaces of the two limiting plates 9. Hexagonal prism blocks 12 are fixedly connected to the upper and lower ends of the bidirectional threaded rod 10. The hexagonal prism blocks 12 are all located in the corresponding limiting arc groove 8.

[0039] The outer surface of the positioning block 5 is provided with a plurality of first threaded holes 18. The first threaded holes 18 communicate with the interior of the sliding arc groove 7. A fixing bolt 15 is threadedly connected to the first threaded hole 18. The fixing bolt 15 extends into the corresponding sliding arc groove 7 through the first threaded hole 18. One end of the fixing bolt 15 extending into the sliding arc groove 7 contacts the outer surface of the corresponding limiting block 11.

[0040] After the positioning sleeve 1 and the connecting sleeve 6 are installed and connected, pushing the connecting sleeve 6 causes the two limiting blocks 11 to slide within the sliding arc groove 7, the two connecting blocks 13 to slide within the connecting arc groove 14, and the two limiting plates 9 to slide within the limiting arc groove 8. Because the limiting arc groove 8, the connecting arc groove 14, and the sliding arc groove 7 are all arc-shaped, the sliding of the limiting blocks 11, the connecting blocks 13, and the limiting plates 9 also causes the angle between the connecting sleeve 6 and the positioning sleeve 1 to change, thereby achieving the function of adjusting the angle between the connecting sleeve 6 and the positioning sleeve 1, and thus increasing the applicability of the bridge steel structure connector. The system offers advantages in terms of both performance and flexibility. After adjusting the connecting sleeve 6 to a suitable angle, multiple fixing bolts 15 are rotated into suitable first threaded holes 18, causing one end of the fixing bolt 15 to contact and press against the outer surface of the limiting block 11. This increases the friction between the limiting block 11 and the sliding arc groove 7, and between the fixing bolt 15 and the limiting block 11, thereby fixing the limiting block 11 and the connecting sleeve 6. This fixes the angle between the positioning sleeve 1 and the connecting sleeve 6, making the operation convenient and flexible and increasing the practicality of the bridge steel structure connector.

[0041] In one embodiment, the fixing mechanism includes four fixing blocks 4, which are fixedly connected to the outer surfaces of the two adjacent sides of the first fixing discs 2. Two second threaded holes 20 are provided on the outer surface of the two positioning blocks 5 near the fixing blocks 4. A countersunk hole 19 is provided on each fixing block 4, and the countersunk hole 19 is adapted to the second threaded hole 20.

[0042] In addition, in specific applications, the two positioning sleeves 1 are fitted onto the steel column, and then the bolts are threaded through the countersunk holes 19 and screwed into the corresponding second threaded holes 20 to fix the two positioning sleeves 1 and the first fixing plate 2 and the second fixing plate 3. Thus, the two positioning sleeves 1 are also fixedly fitted onto the steel column. The fixing is convenient, quick, safe and reliable.

[0043] In this scheme, the first fixing plate 2 can be equipped with multiple connecting sleeves 6, each with a different size. Because the connection between the connecting sleeve 6 and the positioning sleeve 1 is achieved by the limiting block 11 sliding into the limiting groove 16, the connection between the connecting sleeve 6 and the positioning sleeve 1 can be achieved by adjusting the distance between the two limiting blocks 11. When the size of the connecting sleeve 6 is small, the distance between the two limiting blocks 11 needs to be small to achieve the fixation of the connecting sleeve 6. When the size of the connecting sleeve 6 is large, the distance between the two limiting blocks 11 needs to be large to achieve the fixation of the connecting sleeve 6. This allows connecting sleeves 6 of different sizes to be installed and connected on the positioning sleeve 1, thereby increasing the practicality and flexibility of the bridge steel structure connectors.

[0044] In this scheme, the relative sliding range of the two limiting blocks 11 is limited. The sliding range of the limiting blocks 11 must ensure that one end of the fixing bolt 15 screwed into the sliding arc groove 7 can fully contact the outer surface of the limiting block 11 to ensure the stability of the connecting sleeve 6.

[0045] In this scheme, the positioning block 5 is fixedly connected to the second fixed plate 3, which increases the strength of the second fixed plate 3. With the positioning block 5 providing a certain support for the second fixed plate 3, the strength of the second fixed plate 3 can be guaranteed while the stability of the connecting sleeve 6 can be increased.

[0046] In summary, by means of the above-mentioned technical solution of this utility model, by fitting two positioning sleeves 1 onto the steel column, and then by threading bolts through the countersunk holes 19 and connecting them with the corresponding second threaded holes 20, the two positioning sleeves 1 are fixed together, as are the first fixing plate 2 and the second fixing plate 3, thereby fixing the two positioning sleeves 1 onto the steel column. The connecting sleeve 6 is placed between the two positioning blocks 5, and the bidirectional threaded rod 10 is slidably connected to the two support grooves 17. Rotating the hexagonal prism block 12 drives the bidirectional threaded rod 10 to rotate. The rotation of the bidirectional threaded rod 10 drives the two limiting blocks 11 to move in opposite or opposite directions. When the two limiting blocks 11 move relative to each other, they move closer together. During relative movement, the sleeve 6 slides into the two limiting grooves 16. At this time, the connecting sleeve 6 cannot detach from the two positioning blocks 5, thus realizing the installation connection between the positioning sleeve 1 and the connecting sleeve 6. When disassembling, simply rotate the bidirectional threaded rod 10 to drive the two limiting blocks 11 to move out of the limiting grooves 16 in opposite directions. Disassembly is convenient and flexible. Pushing the connecting sleeve 6 causes the two limiting blocks 11 to slide in the sliding arc groove 7, the two connecting blocks 13 to slide in the connecting arc groove 14, and the two limiting plates 9 to slide in the limiting arc groove 8. Since the limiting arc groove 8, the connecting arc groove 14, and the sliding arc groove 7 are all arc-shaped, the sliding of the limiting blocks 11, the connecting blocks 13, and the limiting plates 9 also causes the angle between the connecting sleeve 6 and the positioning sleeve 1 to change, thereby realizing the function of adjusting the angle between the connecting sleeve 6 and the positioning sleeve 1.

[0047] Through the above technical solution, 1. During the relative movement of the two limiting blocks 11, they slide into the two limiting grooves 16, so that the connecting sleeve 6 cannot be separated from the two positioning blocks 5, thereby realizing the installation connection between the positioning sleeve 1 and the connecting sleeve 6. When disassembling, simply rotate the bidirectional threaded rod 10 to drive the two limiting blocks 11 to move out of the limiting grooves 16 in opposite directions. Disassembly is convenient and flexible, and installation is quick and labor-saving. When the connecting sleeve 6 or the positioning sleeve 1 is damaged or deformed, the connecting sleeve 6 or the positioning sleeve 1 can be replaced separately, which is more economical and increases the practicality of bridge steel structure connectors.

[0048] 2. By pushing the connecting sleeve 6, the two limiting blocks 11 slide in the sliding arc groove 7, the two connecting blocks 13 slide in the connecting arc groove 14, and the two limiting plates 9 slide in the limiting arc groove 8. Since the limiting arc groove 8, the connecting arc groove 14, and the sliding arc groove 7 are all arc-shaped, the angle between the connecting sleeve 6 and the positioning sleeve 1 changes during the sliding process of the limiting blocks 11, the connecting blocks 13, and the limiting plates 9. This achieves the function of adjusting the angle between the connecting sleeve 6 and the positioning sleeve 1, thereby increasing the applicability and flexibility of the bridge steel structure connector.

[0049] 3. Multiple connecting sleeves 6 can be equipped on the first fixed plate 2. The sizes of the multiple connecting sleeves 6 are different. In this solution, the connection between the connecting sleeve 6 and the positioning sleeve 1 is achieved by sliding the limiting block 11 into the limiting groove 16. Therefore, by adjusting the distance between the two limiting blocks 11, connecting sleeves 6 of different sizes can be installed and fixed, so that connecting sleeves 6 of different sizes can be installed and connected on the positioning sleeve 1, thereby increasing the practicality and flexibility of the bridge steel structure connector.

[0050] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A bridge steel structure connector with fine-tuning function, comprising two positioning sleeves (1), characterized in that, The two positioning sleeves (1) are identical and mirror-shaped. Two first fixing discs (2) are fixedly connected to the positioning sleeve (1) located on the rear side, and two second fixing discs (3) are fixedly connected to the positioning sleeve (1) located on the front side. A connecting sleeve (6) is provided between the two second fixing discs (3), and an installation mechanism is provided between the two second fixing discs (3). The installation mechanism is used to install the connecting sleeve (6) between the two second fixing discs (3). An adjustment mechanism is provided on the two second fixing discs (3). The adjustment mechanism can be used to adjust the angle between the connecting sleeve (6) and the positioning sleeve (1). A fixing mechanism is provided on the first fixing disc (2). The fixing mechanism is used to fix the two positioning sleeves (1).

2. A bridge steel structure connector with fine-tuning function according to claim 1, characterized in that, The installation mechanism includes two positioning blocks (5), which are fixedly connected to the outer surface of the positioning sleeve (1) located on the front side. The outer surfaces of the two positioning blocks (5) on opposite sides are fixedly connected to the outer surfaces of the two second fixing discs (3) on adjacent sides. The upper surface of each positioning block (5) is provided with a sliding arc groove (7) extending out of its lower surface. Limiting blocks (11) are slidably connected in the sliding arc groove (7).

3. A bridge steel structure connector with fine-tuning function according to claim 2, characterized in that, The limiting block (11) is arc-shaped and is adapted to the sliding arc groove (7). Two bidirectional threaded rods (10) are provided on the two limiting blocks (11). The two limiting blocks (11) are threaded onto the two opposite threads of the bidirectional threaded rods (10). The upper and lower outer surfaces of the connecting sleeve (6) are provided with limiting grooves (16). The adjacent outer surfaces of the two limiting blocks (11) slide into the two limiting grooves (16).

4. A bridge steel structure connector with fine-tuning function according to claim 3, characterized in that, The bottom wall of the limiting groove (16) is provided with a support groove (17). The support groove (17) communicates with the interior of the limiting groove (16). The support groove (17) extends out of the outer surface of the connecting sleeve (6) near the positioning sleeve (1). The support groove (17) is slidably connected to the bidirectional threaded rod (10).

5. A bridge steel structure connector with fine-tuning function according to claim 4, characterized in that, The adjustment mechanism includes two connecting arc grooves (14), which are opened on the outer surfaces of the two adjacent sides of the two second fixed disks (3). The connecting arc grooves (14) are arc-shaped, and connecting blocks (13) are slidably connected in each connecting arc groove (14). The two connecting blocks (13) are rotatably sleeved on the outer surface of the bidirectional threaded rod (10). Limiting arc grooves (8) are opened on the outer surfaces of the two opposite sides of the two second fixed disks (3).

6. A bridge steel structure connector with fine-tuning function according to claim 5, characterized in that, The limiting arc groove (8) communicates with the corresponding connecting arc groove (14). The limiting arc groove (8) is arc-shaped. Limiting plates (9) are slidably connected inside the limiting arc groove (8). The two limiting plates (9) are rotatably sleeved on the outer surface of the bidirectional threaded rod (10). The opposite outer surfaces of the two limiting arc grooves (8) are fixedly connected to the opposite outer surfaces of the two limiting plates (9). The upper and lower ends of the bidirectional threaded rod (10) rotatably pass through the opposite outer surfaces of the two limiting plates (9). Hexagonal prism blocks (12) are fixedly connected to the upper and lower ends of the bidirectional threaded rod (10). The hexagonal prism blocks (12) are all located inside the corresponding limiting arc groove (8).

7. A bridge steel structure connector with fine-tuning function according to claim 6, characterized in that, The outer surface of the positioning block (5) is provided with a plurality of first threaded holes (18). The first threaded holes (18) communicate with the interior of the sliding arc groove (7). A fixing bolt (15) is threadedly connected to the first threaded hole (18). The fixing bolt (15) extends into the corresponding sliding arc groove (7) through the first threaded hole (18). One end of the fixing bolt (15) extending into the sliding arc groove (7) contacts the outer surface of the corresponding limiting block (11).

8. A bridge steel structure connector with fine-tuning function according to claim 7, characterized in that, The fixing mechanism includes four fixing blocks (4), which are fixedly connected to the outer surfaces of the two adjacent sides of the first fixing discs (2). Two second threaded holes (20) are opened on the outer surface of the two positioning blocks (5) near the fixing blocks (4). A countersunk hole (19) is opened on each fixing block (4), and the countersunk hole (19) is adapted to the second threaded hole (20).

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