One-way self-locking bridge vertical swivel device

Abstract

The application provides a one-way self-locking bridge vertical rotating device, which comprises a bridge main tower, one end of the bridge main tower is rotationally connected to a tower beam fixed section, and the middle part is temporarily supported by a one-way self-locking support structure and is installed on a bridge deck slab main beam; when a traction system drives the bridge main tower to rotate around the tower beam fixed section from an initial position, the one-way self-locking support structure moves in cooperation with the bridge main tower and forms a one-way self-locking support for the bridge main tower. The one-way self-locking support structure is arranged between the bridge deck slab main beam and the bridge main tower, when the traction system drives the bridge main tower to rotate around the tower beam fixed section from the initial position, the one-way self-locking support effect around the rotating hinge plane in the bridge vertical rotating construction is realized, and the safety of the one-way rotating construction process of the bridge is ensured.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, and in particular to a one-way self-locking vertical rotation device for bridges. Background Technology

[0002] Bridge rotation construction refers to a construction method in which the bridge structure is fabricated (cast or spliced) at a location outside the design axis, and then dynamically rotated using an external traction system. The greatest advantage of this technology is that it minimizes the impact on normal traffic, effectively utilizes the terrain conditions of the construction site, and is suitable for construction on urban arterial roads with high traffic density. Depending on the direction of rotation, it can be divided into vertical rotation construction methods, horizontal rotation construction methods, and methods combining horizontal and vertical rotation.

[0003] The vertical rotation construction method for bridges is a method that uses a traction system to rotate and pull the bridge structure, which is attached to the ground, around a hinge to the designed height. The vertical rotation system consists of a hinge, a horizontal assembly frame, pressure bars, a traction system, and an anchoring system. The main tower is assembled on the horizontal assembly frame, and the main tower is connected to the tower-beam fixed section through the hinge. It is then pulled to the main beam of the bridge deck by the traction system and the anchoring system. The traction system uses jacks to tension and achieve the vertical rotation of the main tower.

[0004] The core issue in bridge rotation construction technology is the overall stability of the bridge's vertical rotation system. The difficulty in vertical rotation construction lies in the poor stability of the main tower during unidirectional vertical rotation, making it highly susceptible to factors such as installation deviations, wind loads, temperature effects, and uneven traction. Traditional bridge vertical rotation construction typically only uses temporary wind bracing to ensure the lateral stability of the rotation system, making it difficult to guarantee the safety of unidirectional bridge rotation construction.

[0005] A new type of unidirectional self-locking support device can be installed on the rotating parts of the main beam and the main tower of the bridge deck to achieve a unidirectional self-locking support effect around the hinge plane during the vertical rotation construction of the bridge. Summary of the Invention

[0006] To address the aforementioned issues, this invention aims to propose a one-way self-locking vertical rotation device for bridges. By setting a one-way self-locking support structure between the main beam of the bridge deck and the main tower of the bridge, when the traction system drives the main tower of the bridge to rotate around the tower-beam fixed section from its initial position, a one-way self-locking support effect around the hinge plane is achieved during the vertical rotation construction of the bridge, providing a safety guarantee for the one-way rotation construction process of the bridge.

[0007] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0008] A one-way self-locking vertical rotation device for bridges includes a main bridge tower. One end of the main bridge tower is rotatably connected to the tower-beam fixed section, and the middle part is temporarily supported by a one-way self-locking support structure and installed on the main beam of the bridge deck. When the traction system drives the main bridge tower to rotate around the tower-beam fixed section from the initial position, the one-way self-locking support structure moves in coordination with the main bridge tower and forms a one-way self-locking support for the main bridge tower.

[0009] Furthermore, the one-way self-locking support structure includes a semi-circular fixed gear, a moving gear, a first connecting rod, a second connecting rod, a third connecting rod, and a translational one-way self-locking device. The translational one-way self-locking device and the semi-circular fixed gear are both fixed to the main beam of the bridge deck. One end of the first connecting rod is fixed to the axis of the semi-circular fixed gear by a pin. One end of the second connecting rod is rotatably connected to the main tower of the bridge. One end of the third connecting rod is rotatably and slidably connected to the translational one-way self-locking device. The other ends of the first, second, and third connecting rods are all fixed to the axis of the moving gear. The semi-circular fixed gear and the moving gear mesh with each other.

[0010] Furthermore, the translational one-way self-locking device includes two fixed boxes and a translational slider installed on the main beam of the bridge deck. The translational slider is a channel structure with an internal cavity and a vertical partition fixed in the middle. Both sides of the vertical partition are welded with return springs. Sliding blocks are movably connected to both sides of the translational slider through the return springs. The outer ends of the sliding blocks are provided with movable locking teeth. The inner side of the fixed boxes is provided with fixed slots and horizontal slides. The bottom sides of the translational slider are provided with protrusions that correspond to and match the horizontal slides. When the translational slider slides in the horizontal slides of the two fixed boxes through the protrusions on both sides of the bottom, the movable locking teeth and the fixed slots form a one-way self-locking effect. One end of the third connecting rod is rotatably connected to the top of the translational slider.

[0011] Furthermore, the fixing slot is fishbone shaped.

[0012] Furthermore, the sliding block has a groove at the center of its four sides, and the internal cavity of the translational slider has a corresponding matching locking block around its channel structure.

[0013] Furthermore, the main tower of the bridge includes two beams connected in a "V" shape. One end of each beam is rotatably connected to the tower beam fixed section, and the middle part is temporarily supported by a one-way self-locking support structure and installed on the main beam of the bridge deck.

[0014] Furthermore, the beam-column and tower beam fixed section are connected by a one-way self-locking hinge.

[0015] Furthermore, the one-way self-locking hinge includes a fixed lug and a rotating lug. The rotating end of the fixed lug is provided with a ring, and the inner circle of the ring is provided with a rotating hole for the fixed lug ring self-locking groove. The rotating side of the rotating shaft of the rotating lug is provided with a slot, and a spring is arranged in the slot. One end of the spring is fixedly connected to the rotating lug, and the other end is connected to a one-way gear. When the rotating lug is rotatably installed in the rotating hole of the fixed lug ring self-locking groove of the fixed lug via the rotating shaft, the one-way gear and the rotating hole of the fixed lug ring self-locking groove form a one-way self-locking effect.

[0016] Beneficial effects: By setting a one-way self-locking support structure between the main beam of the bridge deck and the main tower of the bridge, when the traction system drives the main tower of the bridge to rotate around the tower-beam fixed section from the initial position, the invention achieves a one-way self-locking support effect around the hinge plane during the vertical rotation construction of the bridge, providing a safety guarantee for the one-way rotation construction process of the bridge. Attached Figure Description

[0017] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the unidirectional self-locking bridge vertical rotation device according to an embodiment of the present invention;

[0019] Figure 2 This is a side view of the unidirectional self-locking bridge vertical rotation device according to an embodiment of the present invention;

[0020] Figure 3 The explosion of the translational one-way self-locking device of the one-way self-locking bridge vertical rotation device described in the embodiment of the present invention. Figure 1 ;

[0021] Figure 4 The explosion of the translational one-way self-locking device of the one-way self-locking bridge vertical rotation device described in the embodiment of the present invention. Figure 2 ;

[0022] Figure 5 This is a schematic diagram of the internal structure of the translational slider of the unidirectional self-locking bridge vertical rotation device according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the unidirectional self-locking hinge structure of the unidirectional self-locking bridge vertical rotation device according to an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the fixed ear plate structure of the unidirectional self-locking bridge vertical rotation device according to an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the rotating ear plate structure of the unidirectional self-locking bridge vertical rotation device according to an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the rotating shaft structure of the rotating ear plate of the unidirectional self-locking bridge vertical rotation device according to an embodiment of the present invention. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Example 1

[0030] See Figure 1-9 A one-way self-locking vertical rotation device for bridges includes a main bridge tower 1. One end of the main bridge tower 1 is rotatably connected to the tower-beam fixed section 2, and the middle part is temporarily supported by a one-way self-locking support structure 3 and installed on the main beam of the bridge deck 4. When the traction system drives the main bridge tower 1 to rotate around the tower-beam fixed section 2 from the initial position, the one-way self-locking support structure 3 moves in coordination with the main bridge tower 1 and forms a one-way self-locking support for the main bridge tower 1.

[0031] This embodiment achieves a one-way self-locking support structure between the main beam of the bridge deck and the main tower of the bridge. When the traction system drives the main tower of the bridge to rotate around the tower-beam fixed section from the initial position, it realizes the one-way self-locking support effect around the hinge plane during the vertical rotation construction of the bridge, providing a safety guarantee for the one-way rotation construction process of the bridge.

[0032] It should be noted that in this embodiment, the main tower of the bridge is traction-driven by a traction system and rotates in one direction and is protected by a one-way self-locking support structure. After rotating to the set position and connecting with the tower-beam solidification section for the next step, the one-way self-locking support structure of this embodiment can be dismantled accordingly and thus reused.

[0033] In a specific example, the one-way self-locking support structure 3 includes a semi-circular fixed gear 30, a moving gear 31, a first connecting rod 32, a second connecting rod 33, a third connecting rod 34, and a translational one-way self-locking device 35. The translational one-way self-locking device 35 and the semi-circular fixed gear 30 are both fixed to the main beam 4 of the bridge deck. One end of the first connecting rod 32 is fixed to the axis of the semi-circular fixed gear 30 by a pin. One end of the second connecting rod 33 is rotatably connected to the main tower 1 of the bridge. One end of the third connecting rod 34 is rotatably and slidably connected to the translational one-way self-locking device 35. The other ends of the first connecting rod 32, the second connecting rod 33, and the third connecting rod 34 are all fixed to the axis of the moving gear 31. The semi-circular fixed gear 30 and the moving gear 31 mesh with each other.

[0034] When the traction system drives the main tower of the bridge to rotate from its initial position, the first and second connecting rods drive the moving gear to rotate around the semi-circular fixed gear, thereby causing the other end of the third connecting rod to rotate and slide forward in the translational self-locking device. Since the translational one-way self-locking device has a self-locking function, the third connecting rod in this embodiment cannot move backward, thereby realizing the one-way self-locking support movement of the third connecting rod.

[0035] In a specific example, the translational one-way self-locking device 35 includes two fixed boxes 350 installed on the main beam 4 of the bridge deck and a translational slider 351. The translational slider 351 is a channel structure with an internal cavity, and a vertical partition 3510 is fixed in the middle. Return springs 3511 are welded to both sides of the vertical partition 3510. Sliding blocks 3512 are movably connected to both sides of the translational slider 351 through the return springs 3511. The outer ends of the sliding blocks 3512 are provided with movable locking teeth 3513. The inner side of the fixed housing 350 is provided with a fixed slot 3500 and a horizontal slide rail 3501. The bottom sides of the translational slider 351 are provided with protrusions 3514 that correspond to and match the horizontal slide rail 3501. When the translational slider 351 slides in the horizontal slide rail 3501 of the two fixed housings 350 through the protrusions 3514 on both sides of the bottom, the movable locking teeth 3513 and the fixed slot 3500 form a one-way self-locking effect. One end of the third connecting rod 33 is rotatably connected to the top of the translational slider 351.

[0036] When the traction system drives the main tower of the bridge to rotate around the hinge from its initial position, the first and second connecting rods drive the moving gear to rotate around the semi-circular fixed gear, thereby driving the third connecting rod to move the translational slider in the translational self-locking device horizontally. Since the movable locking tooth and the fixed locking groove form a one-way self-locking effect, the one-way self-locking support movement of the third connecting rod is realized.

[0037] In one specific example, the fixing slot 3500 is fishbone shaped.

[0038] In this embodiment, the fishbone-shaped fixing slot can improve the self-locking effect between the movable locking teeth and the fixing slot.

[0039] In a specific example, the sliding block 3512 has a groove 35120 at the center of its four sides, and the internal cavity of the translational slider 351 has a locking block 3515 around its channel structure that corresponds to and matches the groove 35120.

[0040] To facilitate the movement of the slider, grooves are cut at the center of the four sides of the slider to fit into the locking block in the middle of the translational slider.

[0041] In a specific example, the main tower 1 of the bridge includes two beams 10 connected in a "V" shape. One end of each beam 10 is rotatably connected to the tower beam fixed section 2, and the middle part is installed on the main beam of the bridge deck 4 through a one-way self-locking support structure 3.

[0042] In a specific example, the beam-column 10 is connected to the tower beam fixed section 2 via a one-way self-locking hinge 5.

[0043] In this embodiment, the self-locking direction of the unidirectional self-locking hinge is consistent with the self-locking direction of the unidirectional self-locking support structure, and they work together to provide double safety assurance for the unidirectional rotation construction process of the bridge.

[0044] In a specific example, the one-way self-locking hinge 5 includes a fixed ear plate 50 and a rotating ear plate 51. The rotating end of the fixed ear plate 50 is provided with a ring 500, and the inner ring of the ring 500 is provided with a fixed ear plate ring self-locking groove rotating hole 5000. The rotating side of the rotating shaft 510 of the rotating ear plate 51 is provided with a slot, and a spring 511 is arranged in the slot. One end of the spring 511 is fixedly connected to the rotating ear plate 51, and the other end is connected to a one-way gear 512. When the rotating ear plate 51 is rotatably installed in the fixed ear plate ring self-locking groove rotating hole 5000 of the fixed ear plate 50 via the rotating shaft 510, the one-way gear 512 and the fixed ear plate ring self-locking groove rotating hole 5000 form a one-way self-locking effect.

[0045] When the main tower of the bridge rotates, the rotating ear plate rotates around the fixed ear plate. The one-way gear on the rotating ear plate compresses the bottom spring to complete the rotation. The one-way gear of the movable ear plate and the rotating hole of the annular self-locking groove of the fixed ear plate form a one-way rotation self-locking effect.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A one-way self-locking vertical rotation device for bridges, characterized in that, The bridge includes a main tower (1), one end of which is rotatably connected to the tower-beam fixed section (2). The middle part is temporarily supported by a one-way self-locking support structure (3) and installed on the bridge deck main beam (4). When the traction system drives the main tower (1) to rotate around the tower-beam fixed section (2) from the initial position, the one-way self-locking support structure (3) moves in coordination with the main tower (1) and forms a one-way self-locking support for the main tower (1). The one-way self-locking support structure (3) includes a semi-circular fixed gear (30), a moving gear (31), a first connecting rod (32), a second connecting rod (33), a third connecting rod (34), and a flat... The moving one-way self-locking device (35) and the semi-circular fixed gear (30) are both fixed on the main beam (4) of the bridge deck; one end of the first connecting rod (32) is fixed to the center of the semi-circular fixed gear (30) by a pin, one end of the second connecting rod (33) is rotatably connected to the main tower (1) of the bridge, and one end of the third connecting rod (34) is rotatably and slidably connected to the moving one-way self-locking device (35); the other ends of the first connecting rod (32), the second connecting rod (33) and the third connecting rod (34) are all fixed to the center of the moving gear (31), and the semi-circular fixed gear (30) and the moving gear (31) mesh with each other.

2. The unidirectional self-locking bridge vertical rotation device according to claim 1, characterized in that, The translational one-way self-locking device (35) includes two fixed boxes (350) and a translational slider (351) installed on the main beam (4) of the bridge deck. The translational slider (351) is a channel structure with an internal cavity and a vertical partition (3510) fixed in the middle. Both sides of the vertical partition (3510) are welded with return springs (3511). Both sides of the translational slider (351) are movably connected to sliding blocks (3512) through return springs (3511). The outer ends of the sliding blocks (3512) are provided with movable locking teeth (3513). The fixed boxes The inner side of the body (350) is provided with a fixed slot (3500) and a horizontal slide (3501). The bottom sides of the translational slider (351) are provided with protrusions (3514) that correspond to and match the horizontal slide (3501). When the translational slider (351) slides in the horizontal slide (3501) of the two fixed boxes (350) through the protrusions (3514) on both sides of the bottom, the movable locking teeth (3513) and the fixed slot (3500) form a one-way self-locking effect. One end of the third connecting rod (34) is rotatably connected to the top of the translational slider (351).

3. The unidirectional self-locking bridge vertical rotation device according to claim 2, characterized in that, The fixing slot (3500) is fishbone shaped.

4. The unidirectional self-locking bridge vertical rotation device according to claim 2, characterized in that, The sliding block (3512) has a groove (35120) at the center of its four sides, and the internal cavity of the translational slider (351) has a locking block (3515) around its channel structure that matches the groove (35120).

5. The unidirectional self-locking bridge vertical rotation device according to claim 1, characterized in that, The main tower (1) of the bridge includes two beams (10) connected in a "V" shape. One end of each beam (10) is rotatably connected to the tower beam fixed section (2), and the middle part is temporarily supported by a one-way self-locking support structure (3) and installed on the main beam of the bridge deck (4).

6. The unidirectional self-locking bridge vertical rotation device according to claim 5, characterized in that, The beam-column (10) and the tower beam fixed section (2) are connected by a one-way self-locking hinge (5).

7. The unidirectional self-locking bridge vertical rotation device according to claim 6, characterized in that, The one-way self-locking hinge (5) includes a fixed ear plate (50) and a rotating ear plate (51). The rotating end of the fixed ear plate (50) is provided with a ring (500). The inner ring of the ring (500) is provided with a fixed ear plate ring self-locking groove rotating hole (5000). The rotating side of the rotating shaft (510) of the rotating ear plate (51) is provided with a slot. A spring (511) is arranged in the slot. One end of the spring (511) is fixedly connected to the rotating ear plate (51), and the other end is connected to a one-way gear (512). When the rotating ear plate (51) is rotatably installed in the fixed ear plate ring self-locking groove rotating hole (5000) of the fixed ear plate (50) through the rotating shaft (510), the one-way gear (512) and the fixed ear plate ring self-locking groove rotating hole (5000) form a one-way self-locking effect.

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