Highway bridge prestress tension structure

Abstract

The utility model discloses a highway bridge prestress tensioning structure which comprises a tensioning jack, the bottom of the tensioning jack is fixedly connected with an installation base, the bottom of the installation base is fixedly connected with an installation top plate, the bottom of the installation top plate is symmetrically and fixedly connected with supporting rods, and the outer sides of the supporting rods are slidably connected with a fixed top plate. A movable seat is fixedly connected to the bottom of the supporting rod, a threaded rod is rotatably connected to one side of the interior of the movable seat, bearings are symmetrically and rotatably connected to the outer side of the threaded rod, a fixed base is rotatably connected to the outer side of one end of the threaded rod, and the top of the bearing at the upper end is fixedly connected to the bottom of a fixed top plate; the bottom of the bearing at the lower end is fixedly connected to the top of the fixed base, a control box body is fixedly connected to the bottom of the fixed base, when in use, the threaded rod and the controller are arranged to control the double-drive motor, and the threaded rod is driven by the double-drive motor to penetrate through the interior of the fixed base and is rotationally connected to the interior of the bearing.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge prestressed construction auxiliary equipment, and in particular relates to a prestressed tensioning structure of a highway bridge. Background Art

[0002] The prestressed tensioned structure of a highway bridge refers to the use of prestressed technology during the bridge construction process, which pre-stresses the bridge beams or cable surfaces by tensioning high-strength steel strands to improve the bridge's bearing capacity, rigidity and stability, reduce the beam's own weight, thereby saving materials, reducing loads, and extending the bridge's service life. Prestressed tensioned structures are widely used in modern bridge engineering, especially for the design of bridges with large spans, high loads and complex structures.

[0003] Some existing prestressed tensioning structures of highway bridges are unable to adjust the height of the device according to on-site requirements, resulting in a smaller scope of application of the device and affecting the overall use effect. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a prestressed tensioning structure for a highway bridge to solve the problem that some existing prestressed tensioning structures for highway bridges proposed in the above background technology cannot adjust the height of the device according to on-site requirements, resulting in a small scope of application of the device and affecting the overall use effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a prestressed tensioning structure for a highway bridge, comprising a tensioning jack, wherein the bottom of the tensioning jack is fixedly connected to a mounting seat, the bottom of the mounting seat is fixedly connected to a mounting top plate, the bottom of the mounting top plate is symmetrically fixedly connected to a support rod, the outer side of the support rod is slidably connected to the fixed top plate, the bottom of the support rod is fixedly connected to a movable seat, one side of the interior of the movable seat is rotatably connected to a threaded rod, the outer side of the threaded rod is symmetrically rotatably connected to a bearing, the outer side of one end of the threaded rod is rotatably connected to a fixed base, the top of the upper bearing is fixedly connected to the bottom of the fixed top plate, the bottom of the lower bearing is fixedly connected to the top of the fixed base, the bottom of the fixed base is fixedly connected to a control box, and the interior of the control box is symmetrically fixedly connected to a dual-drive motor.

[0006] Preferably, a protective top plate is fixedly connected to the top of the tensioning jack.

[0007] Preferably, four support rods are provided, and one end of the threaded rod is rotatably connected to the output end of the dual-drive motor.

[0008] Preferably, a support seat is fixedly connected to the bottom of the fixed top plate.

[0009] Preferably, two dual-drive motors are provided, and a controller is fixedly connected to one side of the dual-drive motor.

[0010] Preferably, a mounting groove is provided inside the control box.

[0011] Preferably, the bottom of the control box is fixedly connected to a limiting base, the interior of the limiting base is symmetrically fixedly connected to a supporting base plate, a plurality of supporting base plates are provided, and heat dissipation holes are provided inside the supporting base plates.

[0012] Preferably, the bottom of the limiting base is symmetrically fixedly connected to a supporting base, one side of the supporting base is symmetrically fixedly connected to a protective slope, four supporting bases are provided, and eight protective slopes are provided.

[0013] Compared with the existing technology, the present invention provides a prestressed tensioning structure for a highway bridge, which has the following beneficial effects:

[0014] 1. The utility model sets a threaded rod and a controller controls the dual-drive motor. Driven by the dual-drive motor, the threaded rod passes through the interior of the fixed base and is rotatably connected to the interior of the bearing. During the rotation of the threaded rod, the movable seat on the outside of the threaded rod is rotatably connected to the threaded rod, and moves up and down with the support rod. Through the up and down displacement of the support rod, the displacement effect of structures such as the fixed top plate, the mounting top plate, the mounting seat, the tensioning jack and the protective top plate can be achieved. The threaded rod has high bonding strength and bearing capacity, and can effectively support the tensioning jack. Through the drive of the dual-drive motor, the threaded rod can be rotated, thereby achieving the tensioning effect. The operation is simple and convenient.

[0015] 2. The utility model provides a protective slope that increases the stability of the base during operation, preventing the base from tilting due to rain, construction activities, or other factors. This helps protect the safety of the engineering structure and avoid damage.

[0016] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the axial structure of a prestressed tension structure for a highway bridge proposed in the utility model;

[0019] Figure 2 This is a front structural schematic diagram of a prestressed tension structure for a highway bridge proposed in the present utility model;

[0020] Figure 3 This is a side view structural diagram of a prestressed tension structure for a highway bridge proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of a cross-sectional structure of a prestressed tension structure of a highway bridge proposed in the present utility model;

[0022] Figure 5 This is a schematic diagram of a vertical cross-section structure of a prestressed tension structure of a highway bridge proposed by the utility model;

[0023] Figure 6 for Figure 5 A schematic diagram of the enlarged structure at point A;

[0024] Figure 7 This is a schematic diagram of the front vertical section structure of a prestressed tension structure for a highway bridge proposed by the utility model;

[0025] In the figure: tensioning jack 1, protective top plate 2, mounting seat 3, mounting top plate 4, support rod 5, fixed top plate 6, movable seat 7, threaded rod 8, bearing 9, support seat 10, fixed base 11, control box 12, limit base 13, support base 14, protective slope 15, mounting groove 16, dual-drive motor 17, controller 18, support bottom plate 19, heat dissipation hole 20. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-7The utility model provides a technical solution: a prestressed tensioning structure of a highway bridge, including a tensioning jack 1, the bottom of the tensioning jack 1 is fixedly connected to a mounting seat 3, the bottom of the mounting seat 3 is fixedly connected to a mounting top plate 4, the bottom of the mounting top plate 4 is symmetrically fixedly connected to a support rod 5, the outer side of the support rod 5 is slidably connected to a fixed top plate 6, the bottom of the support rod 5 is fixedly connected to a moving seat 7, one side of the inside of the moving seat 7 is rotatably connected to a threaded rod 8, the outer side of the threaded rod 8 is symmetrically rotatably connected to a bearing 9, the outer side of one end of the threaded rod 8 is rotatably connected to a fixed base 11, the top of the upper end bearing 9 is fixedly connected to the bottom of the fixed top plate 6, the bottom of the lower end bearing 9 is fixedly connected to the top of the fixed base 11, the bottom of the fixed base 11 is fixedly connected to a control box 12, the inside of the control box 12 The dual-drive motor 17 is symmetrically fixedly connected to the bottom, and the controller 18 controls the dual-drive motor 17. Driven by the dual-drive motor 17, the threaded rod 8 passes through the interior of the fixed base 11 and is rotatably connected to the interior of the bearing 9. During the rotation of the threaded rod 8, the movable seat 7 on the outside of the threaded rod 8 is rotatably connected to the threaded rod 8, and moves up and down with the support rod 5. Through the up and down displacement of the support rod 5, the displacement effect of the fixed top plate 6, the installation top plate 4, the installation seat 3, the tensioning jack 1 and the protective top plate 2 can be achieved. The threaded rod 8 has high bonding strength and bearing capacity, and can effectively support the tensioning jack 1. Through the drive of the dual-drive motor 17, the threaded rod 8 can be rotated, thereby achieving the tensioning effect. The operation is simple and convenient.

[0028] In the present invention, preferably, a protective top plate 2 is fixedly connected to the top of the tensioning jack 1 .

[0029] In the present invention, preferably, four support rods 5 are provided, and one end of the threaded rod 8 is rotatably connected to the output end of the dual-drive motor 17 .

[0030] In the present invention, preferably, a support base 10 is fixedly connected to the bottom of the fixed top plate 6 .

[0031] In the present invention, preferably, two dual-drive motors 17 are provided, and a controller 18 is fixedly connected to one side of the dual-drive motor 17 .

[0032] In the present invention, preferably, a mounting groove 16 is provided inside the control box 12 .

[0033] In the present invention, preferably, the bottom of the control box 12 is fixedly connected to the limiting base 13, and the interior of the limiting base 13 is symmetrically fixedly connected to the supporting base 19. There are several supporting bases 19, and the interior of the supporting base 19 is provided with heat dissipation holes 20.

[0034] In the present invention, preferably, the bottom of the limit base 13 is symmetrically fixedly connected to a support base 14, and one side of the support base 14 is symmetrically fixedly connected to a protective slope 15. There are four support bases 14 and eight protective slopes 15. During operation, the protective slopes 15 can increase the stability of the base and prevent the base from tilting due to rain, construction activities, or other factors. This helps to protect the safety of the engineering structure and avoid damage.

[0035] The working principle and usage process of the present invention are as follows: During use, a threaded rod 8 is provided, and a controller 18 controls a dual-drive motor 17. Driven by the dual-drive motor 17, the threaded rod 8 penetrates the interior of the fixed base 11 and is rotatably connected to the interior of the bearing 9. As the threaded rod 8 rotates, the movable seat 7 outside the threaded rod 8 is rotatably connected to the threaded rod 8, and the support rod 5 is moved up and down. The up and down displacement of the support rod 5 can achieve the displacement effect of the fixed top plate 6, the mounting top plate 4, the mounting seat 3, the tensioning jack 1, and the protective top plate 2. The threaded rod 8 has a high bonding strength and load-bearing capacity, which can effectively support the tensioning jack 1. The dual-drive motor 17 drives the threaded rod 8 to rotate, thereby achieving the tensioning effect. The operation is simple and convenient. The protective slope 15 is provided to increase the stability of the base during operation, preventing the base from tilting due to rain, construction activities, or other factors. This helps to protect the safety of the engineering structure and avoid damage.

[0036] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prestressed tensioning structure for a highway bridge, comprising a tensioning jack (1), characterized in that: The bottom of the tensioning jack (1) is fixedly connected to a mounting seat (3), the bottom of the mounting seat (3) is fixedly connected to a mounting top plate (4), the bottom of the mounting top plate (4) is symmetrically fixedly connected to a support rod (5), the outer side of the support rod (5) is slidably connected to a fixed top plate (6), the bottom of the support rod (5) is fixedly connected to a moving seat (7), one side of the inside of the moving seat (7) is rotatably connected to a threaded rod (8), the outer side of the threaded rod (8) is symmetrically rotatably connected to a bearing (9), the outer side of one end of the threaded rod (8) is rotatably connected to a fixed base (11), the top of the upper end of the bearing (9) is fixedly connected to the bottom of the fixed top plate (6), the bottom of the lower end of the bearing (9) is fixedly connected to the top of the fixed base (11), the bottom of the fixed base (11) is fixedly connected to a control box (12), and the inside of the control box (12) is symmetrically fixedly connected to a dual-drive motor (17).

2. A prestressed tension structure for a highway bridge according to claim 1, characterized in that: A protective top plate (2) is fixedly connected to the top of the tensioning jack (1).

3. The prestressed tension structure of a highway bridge according to claim 1, characterized in that: Four support rods (5) are provided, and one end of the threaded rod (8) is rotatably connected to the output end of the dual-drive motor (17).

4. The prestressed tension structure of a highway bridge according to claim 1, characterized in that: The bottom of the fixed top plate (6) is fixedly connected to a support seat (10).

5. The prestressed tension structure of a highway bridge according to claim 1, characterized in that: Two dual-drive motors (17) are provided, and a controller (18) is fixedly connected to one side of the dual-drive motor (17).

6. The prestressed tension structure of a highway bridge according to claim 1, characterized in that: A mounting groove (16) is provided inside the control box (12).

7. The prestressed tension structure of a highway bridge according to claim 1, characterized in that: The bottom of the control box (12) is fixedly connected to a limiting base (13), and the interior of the limiting base (13) is symmetrically fixedly connected to a supporting base plate (19), and a plurality of supporting base plates (19) are provided, and heat dissipation holes (20) are provided inside the supporting base plates (19).

8. The prestressed tension structure of a highway bridge according to claim 7, characterized in that: The bottom of the limiting base (13) is symmetrically fixedly connected to a support base (14), and one side of the support base (14) is symmetrically fixedly connected to a protection slope (15). Four support bases (14) are provided, and eight protection slopes (15) are provided.

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