Continuous steel structure bridge bracket prepressing device

Abstract

The utility model belongs to the technical field of bridges, and particularly relates to a continuous steel structure bridge bracket prepressing device which comprises a cement pier body, and a fixing shell is arranged on the side wall of the cement pier body. The continuous steel structure bridge bracket prepressing device is provided with a first bevel gear and a second bevel gear, the first bevel gear can be driven to rotate by rotating a first hand rotating handle through external force, the second bevel gear can be driven to rotate through rotation of the first bevel gear, and a first threaded column is indirectly driven to rotate; the rotation of the first threaded column can make the first threaded plate move, the movement of the first threaded plate can drive the clamping and fixing plates to move, the two sets of clamping and fixing plates move oppositely or back to back, the pre-pressing plate can be quickly disassembled and assembled, and the situation that most bracket pre-pressing devices are fixedly installed through bolts, so that the mounting efficiency is improved is avoided. The connection mode is time-consuming and labor-consuming, the working intensity of personnel is increased, and the installation efficiency is low.

Description

Technical Field

[0001] This utility model relates to the field of bridge technology, and in particular to a preloading device for a continuous steel structure bridge bracket. Background Technology

[0002] In engineering projects such as construction, bridges, aviation, and pipelines, a type of beam with three or more supports is often encountered, called a continuous beam. Continuous beams have intermediate supports, so their deformation and internal forces are usually smaller than those of single-span beams. Therefore, they are widely used in engineering structures (such as bridges) and mechanical components. Continuous beams are statically indeterminate structures, and their internal forces can be solved using the force method.

[0003] Most existing bracket preloading devices are fixed and installed using bolts. This connection method is time-consuming and labor-intensive, increasing the workload of personnel and resulting in low installation efficiency.

[0004] Therefore, a preloading device for continuous steel bridge brackets is needed. Utility Model Content

[0005] The present invention proposes a preloading device for a continuous steel structure bridge bracket, which solves the problem that most existing bracket preloading devices are fixed and installed by bolts. This connection method is time-consuming and labor-intensive, increases the workload of personnel, and has low installation efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A preloading device for a continuous steel structure bridge bracket includes a concrete pier body. A fixing shell is provided on the side wall of the concrete pier body. A clamping shell is provided above the concrete pier body. A first bearing is provided on the upper surface of the clamping shell. A first hand crank is provided inside the first bearing. A first bevel gear is fixed to the end of the first hand crank. A second bevel gear is meshed with one side of the first bevel gear. A first threaded post is fixed inside the second bevel gear. A second bearing is provided at the connection between the clamping shell and the first threaded post. A first connecting post is fixed to the other end of the first threaded post. A first threaded plate is threadedly connected to the periphery of the first threaded post. A first slider is fixed to the side wall of the first threaded plate. A first slide rail is provided on the outer side of the first slider. A clamping fixing plate is fixed above the first threaded plate. A preloading plate is provided on one side of the clamping fixing plate.

[0008] Preferably, a third bearing is provided at the top of the fixed shell, a second hand crank is provided on the inner side of the third bearing, a second threaded post is fixed at the end of the second hand crank, a second connecting post is fixed at the other end of the second threaded post, a second threaded plate is threadedly connected to the outer periphery of the second threaded post, a second slider is fixed on the side wall of the second threaded plate, a second slide rail is provided on the outer side of the second slider, a movable plate is provided on one side of the second threaded plate, a first rotating shaft is provided at the connection between the second threaded plate and the movable plate, a brake plate is provided at the other end of the movable plate, a second rotating shaft is provided at the connection between the movable plate and the brake plate, a locking post is fixed on the side wall of the brake plate, a mounting hole is provided on the outer side of the locking post, a mounting plate is installed outside the mounting hole, a support frame is fixed on the side wall of the mounting plate, a limit post is fixed on the upper surface of the support frame, a limit hole is provided on the outer side of the limit post, and a connecting cross plate is provided outside the limit hole.

[0009] Preferably, the first hand handle forms a rotating structure with the clamping housing via the first bearing, and the first hand handle forms a fixed structure with the first bevel gear, and the first bevel gear forms a meshing structure with the second bevel gear, and the second bevel gear forms a fixed structure with the first threaded post and the first connecting post.

[0010] Preferably, the first threaded post and the first threaded plate form a threaded connection, and the first threaded plate forms a sliding structure with the first slide rail through the first slider, and the first threaded plate forms a fixed structure with the clamping and fixing plate.

[0011] Preferably, the second hand handle forms a rotating structure with the fixed housing via the third bearing, and the second hand handle forms a fixed structure with the second threaded post and the second connecting post.

[0012] Preferably, the second threaded post and the second threaded plate form a threaded connection, and the second threaded plate forms a sliding structure with the second slide rail through the second slider.

[0013] Preferably, the second threaded plate forms a rotating structure with the movable plate via the first rotating shaft, and the movable plate forms a rotating structure with the brake plate via the second rotating shaft, and the brake plate forms a fixed structure with the locking post, and the locking post forms a locking structure with the mounting plate via the mounting hole.

[0014] This utility model proposes a preloading device for a continuous steel structure bridge bracket. Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The continuous steel structure bridge bracket preloading device is equipped with a first bevel gear and a second bevel gear. By rotating the first hand handle by external force, the first bevel gear can be driven to rotate. The rotation of the first bevel gear can drive the second bevel gear to rotate, which in turn drives the first threaded column to rotate. The rotation of the first threaded column can move the first threaded plate. The movement of the first threaded plate can drive the clamping and fixing plate to move. The relative or back-to-back movement of the two sets of clamping and fixing plates can quickly disassemble and assemble the preloading plate, avoiding the time-consuming and labor-intensive connection method of bolt fixing installation of most bracket preloading devices, which increases the workload of personnel and has low installation efficiency.

[0016] 2. The preloading device for the continuous steel structure bridge bracket is equipped with a second threaded column and a second threaded plate. By rotating the second hand handle with external force, the second threaded column can be rotated. Through the threaded connection between the second threaded column and the second threaded plate, the rotation of the second threaded column can move the second threaded plate. The movement of the second threaded plate can drive the movable plate to move. The movement of the movable plate can drive the brake plate and the locking column to move. Through the relative clamping of the two sets of locking columns, a clamping assembly can be formed, thereby allowing the support frame to be quickly disassembled and assembled for the installation of the connecting cross plate. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of a preloading device for a continuous steel bridge bracket proposed in this utility model;

[0018] Figure 2 This is a rear view structural schematic diagram of a preloading device for a continuous steel bridge bracket proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the unfolded structure of a preloading device for a continuous steel bridge bracket proposed in this utility model;

[0020] Figure 4 This is a cross-sectional structural schematic diagram of a preloading device for a continuous steel bridge bracket proposed in this utility model.

[0021] In the diagram: 1. Cement block body; 2. Fixed shell; 3. Clamping shell; 4. First bearing; 5. First hand crank; 6. First bevel gear; 7. Second bevel gear; 8. First threaded post; 9. First connecting post; 10. Second bearing; 11. First threaded plate; 12. First slider; 13. First slide rail; 14. Clamping and fixing plate; 15. Third bearing; 16. Second hand crank; 17. Second threaded post; 18. Second connecting post; 19. Second threaded plate; 20. Second slider; 21. Second slide rail; 22. First rotating shaft; 23. Movable plate; 24. Second rotating shaft; 25. Brake plate; 26. Engaging post; 27. Mounting hole; 28. Mounting plate; 29. ​​Support frame; 30. Limiting post; 31. Limiting hole; 32. Connecting horizontal plate; 33. Preload plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a preloading device for a continuous steel structure bridge bracket, including a cement pier body 1, a fixing shell 2 on the side wall of the cement pier body 1, a clamping shell 3 on the top of the cement pier body 1, a first bearing 4 on the upper surface of the clamping shell 3, a first hand crank 5 on the inner side of the first bearing 4, a first bevel gear 6 fixed at the end of the first hand crank 5, a second bevel gear 7 meshing with one side of the first bevel gear 6, a first threaded post 8 fixed inside the second bevel gear 7, a second bearing 10 at the connection between the clamping shell 3 and the first threaded post 8, a first connecting post 9 fixed at the other end of the first threaded post 8, a first threaded plate 11 threadedly connected to the outer periphery of the first threaded post 8, a first slider 12 fixed on the side wall of the first threaded plate 11, a first slide rail 13 on the outer side of the first slider 12, a clamping fixing plate 14 fixed above the first threaded plate 11, and a preloading plate 33 on one side of the clamping fixing plate 14.

[0024] Furthermore, a third bearing 15 is provided at the top of the fixed shell 2, a second hand crank 16 is provided on the inner side of the third bearing 15, a second threaded post 17 is fixed at the end of the second hand crank 16, a second connecting post 18 is fixed at the other end of the second threaded post 17, a second threaded plate 19 is threadedly connected to the outer periphery of the second threaded post 17, a second slider 20 is fixed to the side wall of the second threaded plate 19, a second slide rail 21 is provided on the outer side of the second slider 20, and a movable plate 23 is provided on one side of the second threaded plate 19. The second threaded plate 19 and the movable plate 23... A first rotating shaft 22 is provided at the connection point of the movable plate 23, a brake plate 25 is provided at the other end of the movable plate 23, a second rotating shaft 24 is provided at the connection point of the movable plate 23 and the brake plate 25, a locking post 26 is fixed to the side wall of the brake plate 25, a mounting hole 27 is provided on the outer side of the locking post 26, a mounting plate 28 is installed on the outside of the mounting hole 27, a support frame 29 is fixed to the side wall of the mounting plate 28, a limit post 30 is fixed to the upper surface of the support frame 29, a limit hole 31 is provided on the outer side of the limit post 30, and a connecting cross plate 32 is provided on the outside of the limit hole 31.

[0025] Furthermore, the first hand crank 5 forms a rotating structure with the clamping housing 3 via the first bearing 4, and the first hand crank 5 forms a fixed structure with the first bevel gear 6, and the first bevel gear 6 forms a meshing structure with the second bevel gear 7, and the second bevel gear 7 forms a fixed structure with the first threaded post 8 and the first connecting post 9; by rotating the first hand crank 5 with external force, the first bevel gear 6 can be driven to rotate. Through the meshing structure of the first bevel gear 6 and the second bevel gear 7, the rotation of the first bevel gear 6 can cause the second bevel gear 7 to rotate, indirectly driving the first threaded post 8 to rotate.

[0026] Furthermore, the first threaded post 8 and the first threaded plate 11 form a threaded connection, and the first threaded plate 11 forms a sliding structure with the first slide rail 13 through the first slider 12, and the first threaded plate 11 forms a fixed structure with the clamping and fixing plate 14; through the threaded connection between the first threaded post 8 and the first threaded plate 11, the rotation of the first threaded post 8 can move the first threaded plate 11, and the movement of the first threaded plate 11 can drive the clamping and fixing plate 14 to move. The relative or back-to-back movement of the two sets of clamping and fixing plates 14 can quickly assemble and disassemble the preload plate 33.

[0027] Furthermore, the second hand crank 16 forms a rotating structure with the fixed shell 2 through the third bearing 15, and the second hand crank 16 forms a fixed structure with the second threaded post 17 and the second connecting post 18. When the second hand crank 16 is rotated by external force, the second threaded post 17 can be driven to rotate. Through the threaded connection between the second threaded post 17 and the second threaded plate 19, the rotation of the second threaded post 17 can move the second threaded plate 19.

[0028] Furthermore, the second threaded post 17 and the second threaded plate 19 form a threaded connection, and the second threaded plate 19 forms a sliding structure with the second slide rail 21 through the second slider 20; by rotating the second hand handle 16 by external force, the second threaded post 17 can be driven to rotate. Through the threaded connection between the second threaded post 17 and the second threaded plate 19, the rotation of the second threaded post 17 can move the second threaded plate 19.

[0029] Furthermore, the second threaded plate 19 forms a rotating structure with the movable plate 23 via the first rotating shaft 22, and the movable plate 23 forms a rotating structure with the brake plate 25 via the second rotating shaft 24. The brake plate 25 forms a fixed structure with the locking post 26, and the locking post 26 forms a locking structure with the mounting plate 28 via the mounting hole 27. The movement of the second threaded plate 19 can drive the movable plate 23 to move, and the movement of the movable plate 23 can drive the brake plate 25 and the locking post 26 to move. Through the relative clamping of the two sets of locking posts 26, a clamping assembly can be formed, thereby allowing the support frame 29 to be quickly disassembled and assembled for the installation of the connecting cross plate 32.

[0030] Working principle: First, the operator needs to rotate the first handle 5 by external force, which drives the first bevel gear 6 to rotate. Through the meshing structure of the first bevel gear 6 and the second bevel gear 7, the rotation of the first bevel gear 6 causes the second bevel gear 7 to rotate, which indirectly drives the first threaded column 8 to rotate. The rotation of the first threaded column 8 causes the first threaded plate 11 to move. The movement of the first threaded plate 11 causes the clamping and fixing plate 14 to move. The relative or back-to-back movement of the two sets of clamping and fixing plates 14 allows for quick assembly and disassembly of the preload plate 33. Then, by rotating the second hand crank 16 with external force, the second threaded post 17 can be rotated. Through the threaded connection between the second threaded post 17 and the second threaded plate 19, the rotation of the second threaded post 17 can move the second threaded plate 19. The movement of the second threaded plate 19 can move the movable plate 23. The movement of the movable plate 23 can move the brake plate 25 and the locking post 26. Through the relative clamping of the two sets of locking posts 26, a clamping assembly can be formed, so that the support frame 29 can be quickly disassembled and assembled in order to install the connecting cross plate 32.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A preloading device for a continuous steel bridge bracket, comprising a concrete pier body (1), characterized in that: The side wall of the cement block body (1) is provided with a fixing shell (2), and the upper part of the cement block body (1) is provided with a clamping shell (3). The upper surface of the clamping shell (3) is provided with a first bearing (4). The inner side of the first bearing (4) is provided with a first hand crank (5). The end of the first hand crank (5) is fixed with a first bevel gear (6). A second bevel gear (7) is meshed with one side of the first bevel gear (6). The inside of the second bevel gear (7) is fixed with a first threaded column (8). The clamping shell ( 3) A second bearing (10) is provided at the connection with the first threaded column (8). A first connecting column (9) is fixed at the other end of the first threaded column (8). A first threaded plate (11) is threadedly connected to the outer periphery of the first threaded column (8). A first slider (12) is fixed on the side wall of the first threaded plate (11). A first slide rail (13) is provided on the outer side of the first slider (12). A clamping and fixing plate (14) is fixed above the first threaded plate (11). A pre-pressure plate (33) is provided on one side of the clamping and fixing plate (14).

2. The preloading device for a continuous steel bridge bracket according to claim 1, characterized in that: The top of the fixed shell (2) is provided with a third bearing (15), and the inner side of the third bearing (15) is provided with a second hand crank (16). The end of the second hand crank (16) is fixed with a second threaded post (17), and the other end of the second threaded post (17) is fixed with a second connecting post (18). The outer periphery of the second threaded post (17) is threadedly connected with a second threaded plate (19). The side wall of the second threaded plate (19) is fixed with a second slider (20), and the outer side of the second slider (20) is provided with a second slide rail (21). A movable plate (23) is provided on one side of the second threaded plate (19), and the connection between the second threaded plate (19) and the movable plate (23) is provided with a... A first rotating shaft (22) is provided, and a brake plate (25) is provided at the other end of the movable plate (23). A second rotating shaft (24) is provided at the connection between the movable plate (23) and the brake plate (25). A locking post (26) is fixed on the side wall of the brake plate (25). An installation hole (27) is provided on the outside of the locking post (26). An installation plate (28) is installed on the outside of the installation hole (27). A support frame (29) is fixed on the side wall of the installation plate (28). A limit post (30) is fixed on the upper surface of the support frame (29). A limit hole (31) is provided on the outside of the limit post (30). A connecting cross plate (32) is provided on the outside of the limit hole (31).

3. The preloading device for a continuous steel bridge bracket according to claim 1, characterized in that: The first hand crank (5) forms a rotating structure with the clamping housing (3) through the first bearing (4), and the first hand crank (5) forms a fixed structure with the first bevel gear (6), and the first bevel gear (6) forms a meshing structure with the second bevel gear (7), and the second bevel gear (7) forms a fixed structure with the first threaded post (8) and the first connecting post (9).

4. The preloading device for a continuous steel bridge bracket according to claim 1, characterized in that: The first threaded post (8) and the first threaded plate (11) form a threaded connection, and the first threaded plate (11) forms a sliding structure with the first slide rail (13) through the first slider (12), and the first threaded plate (11) forms a fixed structure with the clamping and fixing plate (14).

5. A preloading device for a continuous steel bridge bracket according to claim 2, characterized in that: The second hand crank (16) forms a rotating structure with the fixed shell (2) through the third bearing (15), and the second hand crank (16) forms a fixed structure with the second threaded post (17) and the second connecting post (18).

6. The preloading device for a continuous steel bridge bracket according to claim 2, characterized in that: The second threaded post (17) and the second threaded plate (19) form a threaded connection, and the second threaded plate (19) forms a sliding structure with the second slide rail (21) through the second slider (20).

7. A preloading device for a continuous steel bridge bracket according to claim 2, characterized in that: The second threaded plate (19) forms a rotating structure with the movable plate (23) via the first rotating shaft (22), and the movable plate (23) forms a rotating structure with the brake plate (25) via the second rotating shaft (24).

8. The preloading device for a continuous steel bridge bracket according to claim 7, characterized in that: The brake plate (25) and the engaging post (26) form a fixed structure, and the engaging post (26) and the mounting plate (28) form an engaging structure through the mounting hole (27).

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