Modular anti-overturning gallery bridge fixing structure under deep sea strong environment

Abstract

The present application relates to offshore promenade bridge anti-overturning technical field, particularly to a kind of modularization anti-overturning promenade bridge fixing structure under strong environment of deep sea, including platform, the side of platform is provided with arm support module, the downside of platform is provided with first free mechanism and second free mechanism, first free mechanism and second free mechanism are fixedly provided with first turntable between, platform and first free mechanism are fixedly provided with second turntable between, first free mechanism and second free mechanism include top plate and bottom plate.The present application is by setting first free mechanism and second free mechanism same structure and initial stagger, and first turntable is arranged between the two to realize relative angle adjustment, so that two groups of free mechanisms can be adjusted in real time according to the direction of wave, when acting in the same direction, additional inclination compensation can be provided by superposition, effectively break through the maximum compensation angle limit of single mechanism, personnel and materials can be safely transferred on the side of promenade bridge.

Description

Technical Field

[0001] This invention relates to the field of anti-overturning technology for offshore walkways, and in particular to a modular anti-overturning fixed structure for walkways in deep-sea environments. Background Technology

[0002] The deep-sea environment is characterized by large wind, wave, and current loads and complex and changeable sea conditions. The offshore walkways installed on the upper deck of ships serve as critical channels for the transfer of personnel and supplies, and thus face severe risks of capsizing and instability under the continuous impact of waves. Traditional offshore walkways themselves use rigid supports or single-degree-of-freedom compensation mechanisms, which are difficult to effectively cope with multi-directional and multi-modal wave excitation.

[0003] Existing technologies employ multi-angle hydraulic compensation structures for real-time compensation to maintain platform stability. While this active compensation scheme achieves attitude adjustment, it relies solely on multiple hydraulic rod mechanisms for push-pull compensation. It lacks effective lateral constraints and self-stability enhancement measures during operation. Furthermore, the hydraulic rods themselves tilt and deflect during push-pull compensation, leading to accumulated errors over time and potential instability of the bridge platform, posing a significant risk of overturning during personnel and material transfers. In addition, the traditional free-angle hydraulic compensation structure has a limited compensation angle range; its effectiveness decreases significantly when there is a large angle between the wave direction and the compensation direction. Therefore, we propose a modular anti-overturning bridge fixing structure for deep-sea environments with high winds. Summary of the Invention

[0004] In order to overcome the technical problems existing in the prior art, the present invention provides a modular anti-overturning bridge fixing structure in deep-sea strong environment.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including a platform, a boom module is provided on the side of the platform, a first free mechanism and a second free mechanism are provided on the lower side of the platform, a first turntable is fixedly provided between the first free mechanism and the second free mechanism, and a second turntable is fixedly provided between the platform and the first free mechanism. The first free mechanism and the second free mechanism include a top plate and a bottom plate. Hydraulic rods are inclinedly arranged at equal intervals between the top plate and the bottom plate. Bearing brackets are rotatably installed at the output end and the tail end of the hydraulic rods, respectively. A stabilizing component is arranged between the sides of the hydraulic rods, and an adjusting component is arranged between the top plate and the bottom plate. The stabilizing component includes a mounting rod, inside which are arranged a movable rod, a first buffer cylinder, a second buffer cylinder, and a distance sensor. The first and second buffer cylinders elastically support the movable rod, and a movable block and a first universal joint are arranged on the side of the movable rod. The movable rod can stabilize and constrain the hydraulic rod. The adjustment assembly includes a mounting block, an electric actuator fixedly connected to the lower side of the mounting block, a telescopic rod and a second universal joint provided on the side of the mounting block to cooperate with the constraint mounting rod for stability, and a constraint cylinder, constraint rod and a third universal joint provided on the upper side of the mounting block to cooperate with the main beam to stabilize the top plate and bottom plate.

[0006] Furthermore, the first free mechanism and the second free mechanism have the same structure. In the initial state, the two are staggered. The bearing bracket is fixedly installed on the side of the top plate and the bottom plate. The second turntable is fixedly connected between the upper side of the top plate and the lower side of the platform. The first turntable is fixedly connected between the lower side of the bottom plate and the upper side of the top plate.

[0007] Furthermore, the mounting rod is positioned between the hydraulic rods, and mounting cavities are provided on both sides of the mounting rod. The movable rod is slidably mounted inside the mounting cavity, with a portion of the movable rod extending out of the mounting cavity.

[0008] Furthermore, the first buffer cylinder is fixedly connected between the side of the movable rod and the wall of the mounting cavity, and the first buffer cylinder is movably sleeved on the side of the movable rod. The second buffer cylinder is fixedly connected between the other side of the movable rod and the wall of the mounting cavity. A distance sensor is fixedly installed on the wall of the mounting cavity, and the distance sensor is located at the center of the second buffer cylinder.

[0009] Furthermore, the movable block is movably sleeved on the side of the hydraulic rod, and the first universal joint is fixedly installed on the side of the movable rod away from it, with the other end of the first universal joint fixedly connected to the plane of the movable block.

[0010] Furthermore, the mounting block is positioned between the top plate and the bottom plate and corresponds to their center position. The mounting block is flush with the mounting rod, and the electric actuator is vertically fixedly installed at the center position of the corresponding hydraulic rod side.

[0011] Furthermore, the telescopic rod is disposed between the mounting block and the mounting rod, and the tail end of the telescopic rod is rotatably mounted on the inner side of the mounting block via a round shaft. The second universal joint is fixedly connected to the side of the telescopic rod away from the mounting block, and the other end of the second universal joint is fixedly mounted on the side of the mounting rod.

[0012] Furthermore, a flange is fixedly installed at the lower center of the top plate, a third universal joint is fixedly installed inside the flange, a constraint rod is fixedly installed on the other side of the third universal joint and extends from the center of the mounting block, and a constraint sleeve is splined onto the side of the constraint rod and the constraint sleeve is fixedly installed on the upper side of the mounting block.

[0013] Compared with the prior art, the beneficial effects that this invention can achieve are: 1. This invention sets up a first free mechanism and a second free mechanism with the same structure and initially staggered, and sets up a first turntable between the two to achieve relative angle adjustment. This allows the two sets of free mechanisms to adjust their cooperative posture in real time according to the wave direction. When they act in the same direction, they can provide additional tilt compensation, effectively breaking through the maximum compensation angle limit of a single mechanism. This can stably ensure the safe transfer of personnel and materials on the upper side of the corridor bridge.

[0014] 2. The present invention provides lateral elastic constraint when the hydraulic rod is pushed and pulled during the stabilization component by the cooperation structure of the movable rod with the first buffer cylinder and the second buffer cylinder. The distance sensor detects the displacement of the movable rod in real time and feeds it back to the controller, so as to realize the accurate monitoring of the tilt state of the hydraulic rod, ensure that the hydraulic rod always works within the safe tilt range, and effectively prevent instability or damage caused by excessive deflection.

[0015] 3. The adjustment component of this invention drives the mounting block to move via an electric actuator, and drives the mounting rod and movable sleeve to slide along the side of the hydraulic rod via a telescopic rod and a second universal joint, thereby achieving a wide range of adjustable control over the constraint force of the hydraulic rod. That is, the lower the position of the movable sleeve, the greater the constraint force, and vice versa. This allows the stabilizing component to adaptively adjust the constraint stiffness according to changes in sea conditions, taking into account both the flexibility in shallow sea conditions and the anti-overturning capability in large sea conditions.

[0016] 4. This invention uses the splined structure of the constraint cylinder and constraint rod combined with the third universal joint to form an auxiliary main beam support. When the hydraulic rod performs multi-angle compensation movements, it always maintains the centering stability between the top plate and the bottom plate, forming a dual protection mechanism with the stabilizing components, thereby improving the structural integrity and long-term service reliability of the entire free mechanism under complex wave excitation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the free mechanism of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a partial cross-sectional schematic diagram of the stabilizing component of the present invention; Figure 5 This is a partial exploded view of the stabilizing component of the present invention; Figure 6 This is a schematic diagram of the structure of the adjustment component of the present invention; Figure 7 This is a schematic diagram of the peripheral structure of the mounting rod of the present invention; Figure 8 This is a schematic diagram of the peripheral structure of the constraint cylinder of the present invention.

[0018] The components are as follows: 1. Platform; 11. Boom module; 2. First free mechanism; 21. Top plate; 22. Base plate; 23. Hydraulic rod; 24. Bearing bracket; 3. Second free mechanism; 4. First turntable; 5. Second turntable; 6. Stabilizing component; 61. Mounting rod; 62. Mounting cavity; 63. Movable rod; 64. First buffer cylinder; 65. Second buffer cylinder; 66. Distance sensor; 67. Movable block; 68. First universal joint; 7. Adjusting component; 71. Mounting block; 72. Electric actuator; 73. Telescopic rod; 74. Second universal joint; 75. Flange bracket; 76. Third universal joint; 77. Constraint cylinder; 78. Constraint rod. Detailed Implementation

[0019] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0020] Example: Figure 1 and Figure 2As shown, a modular anti-overturning bridge fixing structure for deep-sea environments includes a platform 1. A boom module 11 is installed on the side of the platform 1. The boom module 11 consists of a boom luffing hydraulic cylinder, a main boom, and a telescopic boom. A first free mechanism 2 and a second free mechanism 3 are installed on the underside of the platform 1. The first free mechanism 2 and the second free mechanism 3 have identical structures and are initially staggered. A first turntable 4 is fixed between the first free mechanism 2 and the second free mechanism 3, and a second turntable 5 is fixed between the platform 1 and the first free mechanism 2. Specifically, during use, the first free mechanism 2 and the second free mechanism 3 coordinate to perform multi-angle anti-overturning operations on the platform 1, ensuring that the platform 1 remains horizontal under wave impact. Thus, the main boom module 11... The boom angle is changed by the boom luffing hydraulic cylinder. In addition, the second turntable 5 can drive the platform 1 to rotate. The telescopic boom can extend and retract to dock with the ship, and personnel can be safely transferred. During compensation, the first turntable 4 can drive the first free mechanism 2 to rotate to a different angle position corresponding to the second free mechanism 3, so that the first free mechanism 2 and the second free mechanism 3 can cooperate to achieve a larger angle compensation adjustment. For example, under normal circumstances, the first free mechanism 2 has a set maximum unidirectional tilt angle. When the first free mechanism 2 and the second free mechanism 3 are in the same direction, their synergistic effect can provide additional tilt compensation for the platform 1. In this way, by adjusting the corresponding positions of the first free mechanism 2 and the second free mechanism 3, the compensation effect on the platform 1 can be increased in real time, so that the overall bridge can have a better resistance to wind and waves and maintain stability.

[0021] like Figure 2 As shown, the first free mechanism 2 and the second free mechanism 3 include a top plate 21 and a bottom plate 22. Hydraulic rods 23 are equidistantly inclined between the top plate 21 and the bottom plate 22. Bearing frames 24 are rotatably installed at the output end and the tail end of the hydraulic rods 23, and the bearing frames 24 are correspondingly fixedly installed on the sides of the top plate 21 and the bottom plate 22. The bearing frames 24 are composed of bearings and bearing rods. A stabilizing component 6 is provided between the sides of the hydraulic rods 23. The stabilizing component 6 can increase the stability between the hydraulic rods 23. An adjusting component 7 is provided between the top plate 21 and the bottom plate 22. The adjusting component 7 can adjust the position of the stabilizing component 6. At the same time, after the adjusting component 7 is adapted and adjusted, it can increase the stability between the top plate 21 and the bottom plate 22. The second turntable 5 is fixedly connected between the upper side of the top plate 21 and the lower side of the platform 1. The first turntable 4 is fixedly connected between the lower side of the bottom plate 22 and the upper side of the top plate 21.

[0022] like Figures 3 to 7As shown, the stabilizing component 6 includes a mounting rod 61, which is positioned between the hydraulic rods 23. The mounting rod 61 is a cylindrical rod, and mounting cavities 62 are formed on both sides of the mounting rod 61. Each mounting cavity 62 is a cylindrical cavity with a convex cross-section. A movable rod 63 is slidably mounted inside the mounting cavity 62, with a portion of the movable rod 63 extending out of the mounting cavity 62. The movable rod 63 is a cylindrical rod with a T-shaped cross-section. A first buffer cylinder 64 is fixedly connected between the side of the movable rod 63 and the wall of the mounting cavity 62. 4. A second buffer cylinder 65 is fixedly connected between the movable rod 63 and the wall of the mounting cavity 62 on the other side of the movable rod 63. The first buffer cylinder 64 and the second buffer cylinder 65 are corrugated cylinders made of elastic material. A distance sensor 66 is fixedly installed on the wall of the mounting cavity 62 and is located at the center of the second buffer cylinder 65. A movable block 67 is movably sleeved on the side of the hydraulic rod 23 and corresponds to the position of the movable rod 63. The movable block 67 is an annular block with a flat surface machined on one side. A first universal joint 68 is fixedly installed on the side of the moving rod 63 that is far away from it, and the other end of the first universal joint 68 is fixedly connected to the plane of the movable block 67. The first universal joint 68 is a multi-section universal joint. Specifically, when the hydraulic rod 23 is pushed and the first free mechanism 2 and the second free mechanism 3 perform stability compensation on the platform 1, the two ends of the hydraulic rod 23 are constrained by the bearing bracket 24 to rotate. Multiple sets of hydraulic rods 23 can achieve compensation for the top plate 21, keeping the top plate 21 in a horizontal state. At the same time, when the hydraulic rod 23 is pushed and pulled, it will change its angle. When the hydraulic rod 23 changes its angle, the first universal joint 68 will universally adapt to push and pull the movable rod 63. At this time, the movable rod 63 slides inside the mounting cavity 62, and the first buffer cylinder 64 and the second buffer cylinder 65 will be squeezed or stretched and deformed accordingly. This will provide a stable support effect for the hydraulic rod 23. The distance sensor 66 monitors the displacement of the movable rod 63 in real time and feeds it back to the external controller. The controller can then know the tilt state of the hydraulic rod 23, so that the hydraulic rod 23 can better perform tilt compensation.

[0023] like Figures 6 to 8As shown, the adjustment assembly 7 includes a mounting block 71, which is positioned between the top plate 21 and the bottom plate 22 and corresponds to their center position. The mounting block 71 is flush with the mounting rod 61. The mounting block 71 is a triangular round block. An electric actuator 72 is fixedly connected to the lower side of the mounting block 71 and is vertically fixedly installed at the center position of the side of the corresponding hydraulic rod 23. A telescopic rod 73 is provided between the mounting block 71 and the mounting rod 61, and the tail end of the telescopic rod 73 is rotatably mounted inside the mounting block 71 via a round shaft. The telescopic rod 73 is a freely adjustable telescopic round rod. When the telescopic rod 73 is away from the mounting block 71... A second universal joint 74 is fixedly connected to the side of the mounting block 71, and the other end of the second universal joint 74 is fixedly installed on the side of the mounting rod 61. The second universal joint 74 is a multi-section universal joint. A flange 75 is fixedly installed at the center of the lower side of the top plate 21. A third universal joint 76 is fixedly installed inside the flange 75. The third universal joint 76 is a single-section universal joint made of high-strength material. A constraint rod 78 is fixedly installed on the other side of the third universal joint 76, and the constraint rod 78 extends from the center of the mounting block 71. The constraint rod 78 is a splined round rod. A constraint sleeve 77 is splinedly sleeved on the side of the constraint rod 78 and approximately The bundle 77 is fixedly installed on the upper side of the mounting block 71, and the constraint rod 78 is a hollow cylinder with a spline groove on the inner side. Specifically, when the electric actuator 72 pushes and pulls the mounting block 71 to move, the telescopic rod 73 extends and retracts accordingly. Through the second universal joint 74, it pulls the mounting rod 61 to move up and down to the corresponding position. After the position is adjusted, the mounting block 71 is pushed and pulled to be level with the mounting rod 61. At this time, the mounting rod 61 can drive the movable block 67 to move to the side of the hydraulic rod 23. The corresponding movable rod 63 slides inside the mounting cavity 62. As the movable block 67 moves further and further away from the hydraulic rod 23, the position of the movable block 67 increases. The lower the constraint force of the movable rod 63 on the hydraulic rod 23, the greater the constraint force. When the hydraulic rod 23 requires a larger constraint, the electric actuator 72 pulls the mounting block 71 downward, and when the hydraulic rod 23 requires a smaller constraint, the electric actuator 72 pushes the mounting block 71 upward. At the same time, the constraint cylinder 77 slides along the constraint rod 78, guiding the mounting block 71 to maintain the alignment with the third universal joint 76, thus providing auxiliary support between the top plate 21 and the bottom plate 22. This, combined with the constraint of the electric actuator 72, provides support between the top plate 21 and the bottom plate 22. When the hydraulic rod 23 is tilted, the third universal joint 76 can rotate accordingly.

[0024] Working principle: When the boardwalk is in use, personnel need to pass through. At this time, multiple sets of module compensation and adjustment are performed. Through the modular setting of the first free mechanism 2 and the second free mechanism 3, the first free mechanism 2 and the second free mechanism 3 are connected through the first turntable 4. The second turntable 5 rotates the platform 1 normally. The first turntable 4 can rotate the first free mechanism 2 to adjust the angle between the first free mechanism 2 and the second free mechanism 3. In this way, the first free mechanism 2 and the second free mechanism 3 can cooperate to increase the compensation angle, so that the boom module 11 can stably dock with different ship positions and complete the safe transfer of personnel. Moreover, the stabilizing component 6 and the adjusting component 7 included in the first free mechanism 2 and the second free mechanism 3 give them good stability. Only three sets of hydraulic rods 23 are needed to realize the six-degree-of-freedom motion compensation function of the platform 1. To enhance stability compensation, the hydraulic rod 23 between the top plate 21 and the bottom plate 22 is adapted to push and pull motion, and multi-angle compensation is performed in conjunction with the bearing bracket 24. This enables the top plate 21 to be kept horizontal, and the platform 1 can be kept horizontal under the impact of waves. When the hydraulic rod 23 is pushed and pulled, it tilts itself. The corresponding movable block 67 can push and pull the movable rod 63 to slide inside the mounting cavity 62. The first buffer cylinder 64 and the second buffer cylinder 65 deform and buffer. The first universal joint 68 ensures the universal angle compensation connection between the movable rod 63 and the movable block 67. The distance sensor 66 detects the distance of the movable rod 63 in real time and feeds it back to the external controller. The controller can then know the real-time position of the movable rod 63 and thus determine the tilt state of the hydraulic rod 23, ensuring that the hydraulic rod 23 is within a safe tilt range. Adjusting the stability compensation, the electric actuator 72 pushes and pulls the mounting block 71 to move its position. When the electric actuator 72 drives the mounting block 71 to move, the telescopic rod 73 adaptively extends and retracts, and drives the mounting rod 61 to move up and down through the second universal joint 74. When the mounting rod 61 moves, the corresponding movable rod 63 can cooperate to pull the movable block 67 to move its position on the side of the hydraulic rod 23. The movable rod 63 can then slide to a corresponding position. The lower the position of the movable block 67, the greater the constraint force on the hydraulic rod 23 by the movable rod 63. After the position of the mounting rod 61 is adjusted, the electric actuator 72 pushes and pulls the mounting block 71 until it is level with the mounting rod 61. (Subsequent...) When the hydraulic rod 23 is adjusted for compensation, the telescopic rod 73 adapts to the telescopic movement. The second universal joint 74, in conjunction with universal rotation compensation, further enhances the stability of the mounting rod 61. When the mounting block 71 moves, the constraint cylinder 77 is always sleeved on the side of the constraint rod 78, so that the electric actuator 72, mounting block 71, constraint cylinder 77, constraint rod 78 and the third universal joint 76 together provide stable support between the top plate 21 and the bottom plate 22, similar to the main beam support structure. The third universal joint 76 adapts to the universal angle for compensation. The above multi-directional stability compensation ensures the stability of the bridge against overturning under the impact of waves in the deep sea environment.

[0025] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A modular anti-overturning corridor bridge fixing structure in a deep-sea environment, comprising a platform (1), a boom module (11) is provided on the side of the platform (1), a first free mechanism (2) and a second free mechanism (3) are provided on the lower side of the platform (1), a first turntable (4) is fixedly provided between the first free mechanism (2) and the second free mechanism (3), and a second turntable (5) is fixedly provided between the platform (1) and the first free mechanism (2). Its features are: The first free mechanism (2) and the second free mechanism (3) include a top plate (21) and a bottom plate (22). Hydraulic rods (23) are equidistantly inclined between the top plate (21) and the bottom plate (22). Bearing brackets (24) are rotatably installed at the output end and the tail end of the hydraulic rods (23). A stabilizing component (6) is provided between the sides of the hydraulic rods (23). An adjusting component (7) is provided between the top plate (21) and the bottom plate (22). The first free mechanism (2) and the second free mechanism (3) have the same structure and are initially staggered. The stabilizing component (6) includes a mounting rod (61), inside which are arranged a movable rod (63), a first buffer cylinder (64), a second buffer cylinder (65) and a distance sensor (66). The first buffer cylinder (64) and the second buffer cylinder (65) elastically support the movable rod (63). The side of the movable rod (63) is provided with a movable block (67) and a first universal joint (68). The movable rod (63) can stably constrain the hydraulic rod (23). The movable block (67) is movably sleeved on the side of the hydraulic rod (23), and the first universal joint (68) is fixedly installed on the side of the movable rod (63) away from it, and the other end of the first universal joint (68) is fixedly connected to the plane of the movable block (67). The adjustment assembly (7) includes a mounting block (71), an electric actuator (72) is fixedly connected to the lower side of the mounting block (71), a telescopic rod (73) and a second universal joint (74) are provided on the side of the mounting block (71), the telescopic rod (73) and the second universal joint (74) cooperate with the constraint mounting rod (61) to stabilize, and a constraint cylinder (77), a constraint rod (78) and a third universal joint (76) are provided on the upper side of the mounting block (71). The constraint cylinder (77) and the constraint rod (78) are combined with the third universal joint (76) to form an auxiliary main beam support, stabilizing the top plate (21) and the bottom plate (22).

2. The modular anti-overturning bridge fixing structure in a deep-sea environment according to claim 1, characterized in that: The bearing frame (24) is fixedly installed on the side of the top plate (21) and the bottom plate (22). The second turntable (5) is fixedly connected between the upper side of the top plate (21) and the lower side of the platform (1). The first turntable (4) is fixedly connected to the lower side of the bottom plate (22) and the upper side of the top plate (21).

3. The modular anti-overturning bridge fixing structure in a deep-sea environment according to claim 2, characterized in that: The mounting rod (61) is positioned between the hydraulic rods (23). Mounting cavities (62) are provided on both sides of the mounting rod (61). The movable rod (63) is slidably mounted inside the mounting cavity (62) and the movable rod (63) extends out of the mounting cavity (62).

4. The modular anti-overturning bridge fixing structure in a deep-sea environment according to claim 3, characterized in that: The first buffer cylinder (64) is fixedly connected between the side of the movable rod (63) and the wall of the mounting cavity (62), and the first buffer cylinder (64) is movably sleeved on the side of the movable rod (63). The second buffer cylinder (65) is fixedly connected between the other side of the movable rod (63) and the wall of the mounting cavity (62). A distance sensor (66) is fixedly installed on the wall of the mounting cavity (62), and the distance sensor (66) is located at the center of the second buffer cylinder (65).

5. The modular anti-overturning bridge fixing structure in a deep-sea environment according to claim 4, characterized in that: The mounting block (71) is positioned between the top plate (21) and the bottom plate (22) and corresponds to their center position. The mounting block (71) is level with the mounting rod (61), and the electric actuator (72) is vertically fixed at the center position of the side of the corresponding hydraulic rod (23).

6. The modular anti-overturning corridor bridge fixing structure according to claim 5, characterized in that: The telescopic rod (73) is positioned between the mounting block (71) and the mounting rod (61), and the tail end of the telescopic rod (73) is rotatably mounted on the inner side of the mounting block (71) via a round shaft. The second universal joint (74) is fixedly connected to the side of the telescopic rod (73) away from the mounting block (71), and the other end of the second universal joint (74) is fixedly mounted on the side of the mounting rod (61).

7. The modular anti-overturning corridor bridge fixing structure according to claim 6, characterized in that: A flange (75) is fixedly installed at the lower center of the top plate (21). A third universal joint (76) is fixedly installed inside the flange (75). A constraint rod (78) is fixedly installed on the other side of the third universal joint (76) and extends from the center of the mounting block (71). A constraint sleeve (77) is splined onto the side of the constraint rod (78) and is fixedly installed on the upper side of the mounting block (71).

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