Rotary type liftable bridge anti-collision device

Abstract

The invention discloses a rotary lifting bridge anti-collision device which comprises a rotating device, a lifting device and an air bag anti-collision device. The rotating device is rotatably sleeved on the outer wall of the pier, the lifting device is mounted on the rotating device, and the air bag anti-collision device can lift vertically along the pier by the aid of the lifting device to adjust the height and can also rotate horizontally around the pier along with the rotating device to adjust the angle. The air bag anti-collision device comprises a retractable shell and a built-in air bag, and the outer side of the shell is wrapped by the air bag. During working, the shell is turned from contraction to opening, and the inflatable air bag is supported; the air bags can change the advancing direction of the ship and absorb impact force by means of elasticity and energy absorption, the ship is prevented from directly colliding with the piers or impact force is prevented from influencing the piers, and damage to the bridge body is greatly reduced. During non-working, the shell shrinks, the air bags are deflated, the lifting device drives the air bag anti-collision device to move upwards to be close to the bottom face of the bridge, the size of the device is reduced to the maximum degree, the channel space is vacated, and the channel occupation problem is solved.

Description

Technical Field

[0001] This invention relates to the field of bridge collision avoidance technology, and in particular to a rotating and lifting bridge collision avoidance device. Background Technology

[0002] With the large-scale construction of bridges and the booming development of the shipping industry, ship collisions with bridges are becoming increasingly frequent, posing a great threat to the safety of bridges and people. Therefore, it is necessary to use bridge anti-collision devices to protect bridges.

[0003] However, current research on anti-ship collision devices is still immature. Traditional anti-ship collision devices are simply adding buffer materials to the bridge piers, which has poor protective effect. Modern new anti-ship collision devices are also passively added to the bridge piers, with only some material optimization. However, the devices are large in size and will encroach on the width of navigation. At the same time, they are still slightly lacking in reducing the damage caused by ship collisions. Summary of the Invention

[0004] This invention provides a rotating and lifting bridge anti-collision device to overcome the above-mentioned problems.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A rotating and lifting bridge anti-collision device includes a rotating device, a lifting device, and an airbag anti-collision device.

[0007] The rotating device is rotatably mounted on the outer wall of the bridge pier. The lifting device is mounted on the rotating device. The airbag anti-collision device can be raised and lowered on the bridge pier in the vertical direction through the lifting device to adjust the vertical height of the airbag anti-collision device. The rotating device can drive the lifting device and the airbag anti-collision device to rotate horizontally around the bridge pier to adjust the horizontal angle of the airbag anti-collision device.

[0008] The airbag anti-collision device includes a shell and an airbag disposed inside the shell. The outer side of the shell is covered by the airbag. In the working state, the shell can change from an initial contracted state to an open state and inflate the airbag. In the non-working state, the shell can change from an open state to a contracted state, and the deflated airbag can be driven away from the water surface by the lifting device.

[0009] Furthermore, the rotating device includes an inner ring assembly, a first transmission wheel, a second transmission wheel, a transmission belt, and a rotation drive motor;

[0010] The inner ring assembly is rotatably fitted onto the outer wall of the pier. The lifting device is installed on the outside of the inner ring assembly. The second transmission wheel is rotatably installed on the pier and is fixedly connected to the airbag anti-collision device via a flexible metal rod. The rotary drive motor is installed on the pier and can drive the second transmission wheel to rotate via the first transmission wheel and the transmission belt. The rotation of the second transmission wheel can drive the airbag anti-collision device, the lifting device, and the inner ring assembly to rotate around the pier.

[0011] Furthermore, the lifting device includes a rack, a turbine, a screw, and a lifting drive motor;

[0012] The rack is fixed vertically to the outside of the inner ring assembly, and the top of the rack is fixedly connected to the second transmission wheel. An installation rod is fixed inside the airbag anti-collision device. The turbine is rotatably mounted on the installation rod and meshes with the rack. One end of the screw is connected to the lifting drive motor located inside the airbag anti-collision device, and the other end of the screw meshes with the turbine.

[0013] Furthermore, the outer shell includes an annular structure, a top shell, and a bottom shell;

[0014] The annular structure is located on the outside of the inner ring assembly. The inner side of the annular structure is fixedly connected to the second transmission wheel via the flexible metal rod. The bottom of the outer side of the annular structure is fixedly connected to the bottom shell. The top of the outer side of the annular structure is connected to the top shell via a telescopic structure. The annular structure, the top shell, and the bottom shell form a shell structure with an opening on the outside. The airbag is located inside the shell structure, and the opening can be covered by the airbag.

[0015] The lifting drive motor is located inside the annular structure.

[0016] Furthermore, the inner ring assembly includes an inner ring and rollers;

[0017] The inner ring is fitted on the outside of the pier, the roller is rotatably mounted on the inside of the inner ring, and the side of the roller away from the inner ring abuts against the outer peripheral wall of the pier. The rack is fixed on the outside of the inner ring, and the inner ring can be driven by the airbag anti-collision device and rotate around the outer periphery of the pier through the roller.

[0018] Furthermore, the telescopic structure includes a telescopic rod and a telescopic rod driving device. The telescopic rod is arranged in a vertical direction. The top of the telescopic rod is fixedly connected to the top shell, and the bottom of the telescopic rod is fixedly connected to the bottom shell. The telescopic rod driving device is connected to the telescopic rod and is used to drive the telescopic rod to extend out of the annular structure so that the outer shell is in an open state or to drive the telescopic rod to retract into the annular structure so that the outer shell is in a retracted state.

[0019] Furthermore, the airbag anti-collision device also includes an inflator / deflator for inflating or deflating the airbag, the inflator / deflator being disposed inside the annular structure.

[0020] Furthermore, it also includes radar monitoring devices and a main control system;

[0021] The radar monitoring device is installed at the bottom of the main beam of the bridge and is used to monitor the distance between the ship and the bridge pier in real time to obtain distance data, monitor the position of the airbag anti-collision device in real time to obtain position data, and send the distance data and position data to the main control system in real time.

[0022] The main control system is used to receive the distance data and position data, control the start and stop of the rotary drive motor, control the start and stop of the lifting drive motor, control the start and stop of the telescopic rod drive device, and control the start and stop of the inflation / deflation machine.

[0023] The beneficial effects of this invention are:

[0024] This invention discloses a rotary and liftable bridge anti-collision device. The rotating mechanism drives the airbag anti-collision device to rotate, adjusting its impact angle with the ship. Utilizing the elasticity and energy absorption effect of the airbag, it changes the ship's direction of travel and absorbs the impact force. This allows the device to absorb the impact energy of the ship and change its course during a collision, preventing the ship from directly colliding with the bridge pier or indirectly affecting it due to excessive impact force. This significantly reduces the damage to the bridge caused by ship collisions and the resulting impact force, achieving efficient protection of the bridge pier. When not in operation, the airbag remains uninflated and its outer shell remains contracted, minimizing the overall size of the airbag anti-collision device. The lifting mechanism then moves the entire airbag anti-collision device upwards as close as possible to the bridge's underside. This not only reduces the device's size but also frees up navigation space, solving the problem of obstructing the navigation channel. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a rotating and lifting bridge anti-collision device disclosed in this invention when the outer shell is opened. Figure 1 (Open);

[0027] Figure 2 This is a schematic diagram of the structure of a rotating and lifting bridge anti-collision device disclosed in this invention when the outer shell is opened. Figure 2 (Open);

[0028] Figure 3 This is a front view schematic diagram of the open state of a rotary liftable bridge anti-collision device disclosed in this invention;

[0029] Figure 4 This is a schematic diagram of the closed state of a rotary liftable bridge anti-collision device disclosed in this invention;

[0030] Figure 5 This is a front view schematic diagram of the closed state of a rotary liftable bridge anti-collision device disclosed in this invention;

[0031] Figure 6 This is a schematic diagram of the ring structure of a rotating and lifting bridge anti-collision device disclosed in this invention.

[0032] In the picture:

[0033] 1. Rotating device; 11. Inner ring assembly; 111. Inner ring; 112. Roller; 12. First transmission wheel; 13. Second transmission wheel; 14. Transmission belt; 15. Flexible metal rod;

[0034] 2. Lifting device; 21. Rack; 22. Turbine; 23. Screw;

[0035] 3. Airbag anti-collision device; 31. Outer shell; 311. Ring structure; 312. Top shell; 313. Bottom shell; 32. Airbag; 33. Telescopic rod;

[0036] 4. Bridge piers. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example:

[0039] like Figure 1-5 The image shows a rotating and lifting bridge anti-collision device provided in this embodiment, including a rotating device 1, a lifting device 2, and an airbag anti-collision device 3;

[0040] The rotating device 1 is rotatably mounted on the outer wall of the bridge pier 4. The lifting device 2 is mounted on the rotating device 1. The airbag anti-collision device 3 can be raised and lowered on the bridge pier 4 in the vertical direction through the lifting device 2 to adjust the vertical height of the airbag anti-collision device 3. The rotating device 1 can drive the lifting device 2 and the airbag anti-collision device 3 to rotate horizontally around the bridge pier 4 to adjust the horizontal angle of the airbag anti-collision device 3.

[0041] The airbag anti-collision device 3 includes a housing 31 and an airbag 32 disposed within the housing 31. The outer side of the housing 31 (the side away from the pier 4) is covered by the airbag 32 (the main body of the airbag is disposed inside the housing, and the airbag can cover the outer side, part of the top side, and part of the bottom side of the housing). In the working state, the housing 31 can be converted from the initial contracted state to the open state and inflated airbag. In the non-working state, the housing 31 can be converted from the open state to the contracted state, and the deflated airbag can be driven away from the water surface by the lifting device 2.

[0042] This invention discloses a rotary and liftable bridge anti-collision device. The rotary device drives the airbag anti-collision device to rotate, adjusting its impact angle with the ship. Utilizing the elasticity and energy absorption effect of the airbag, it changes the ship's direction of travel and absorbs the impact force. This allows the device to absorb the impact energy of the ship and change its course during a collision, preventing the ship from directly colliding with the bridge pier or indirectly affecting it due to excessive impact force. This significantly reduces the damage to the bridge caused by ship collisions and the resulting impact force, achieving efficient protection of the bridge pier. When not in operation, the airbag remains uninflated and the outer shell remains contracted, minimizing the overall size of the airbag anti-collision device. The lifting device moves the entire airbag anti-collision device upwards as close as possible to the bridge floor. This not only reduces the size of the device but also frees up channel space, solving the problem of obstructing the waterway.

[0043] In a specific embodiment, the rotating device 1 includes an inner ring assembly 11, a first transmission wheel 12, a second transmission wheel 13, a transmission belt 14, and a rotation drive motor;

[0044] The inner ring assembly 11 is rotatably fitted onto the outer wall of the pier 4. The lifting device 2 is installed on the outside of the inner ring assembly 11. The second transmission wheel 13 is rotatably installed on the pier 4 and is fixedly connected to the airbag anti-collision device 3 via a flexible metal rod 15. The rotary drive motor is installed on the pier 4 and can drive the second transmission wheel 13 to rotate via the first transmission wheel 12 and the transmission belt 14. The rotation of the second transmission wheel 13 can drive the airbag anti-collision device 3, the lifting device 2, and the inner ring assembly 11 (inner ring) to rotate around the pier 4.

[0045] The second drive wheel 13 is mounted on the pier 4 via a bearing. The bearing is an existing half-body bearing, which is divided into two independent halves, left and right, along the radial direction. Both the inner and outer rings of the bearing have precision-machined split surfaces and are equipped with locating pin holes and special sealing strips. During installation, first, align the inner ring of the left half bearing with the pre-set annular mounting step on the outer wall of the pier 4 (if the pier 4 is made of concrete, a metal mounting sleeve must be fitted before installing the bearing). Then, align the inner hole of the second transmission wheel 13 of the left half with the outer ring of the left half bearing. Use temporary clamps to pre-fix the left half transmission wheel and the left half bearing onto the pier 4. Next, align the inner ring of the right half bearing with the mounting step of the pier 4, and align the outer ring with the inner hole of the second transmission wheel 13 of the right half. Fasten the right half transmission wheel to ensure that the mating end faces of the left and right half transmission wheels are tightly fitted. At the same time, ensure that the split surfaces of the left and right halves of the bearing are precisely aligned. Connect and fix the bearing by inserting positioning pins into pin holes and welding. Finally, complete the overall fastening of the bearing and the second transmission wheel 13. Fix the rotary drive motor on the pier 4, and fix the output end of the motor to the first transmission wheel 12. Fit the two ends of the transmission belt 14 onto the outside of the first transmission wheel 12 and the second transmission wheel 13, respectively, to complete the installation of the rotating device 1.

[0046] Since the second drive wheel 13 is fixedly connected to the airbag anti-collision device 3, and with the cooperation of the inner ring assembly 11, when the second drive wheel 13 is driven to rotate by the rotary drive motor, the drive belt 14 and the first drive wheel 12, the second drive wheel 13 can drive the airbag anti-collision device 3 to rotate in the lateral direction around the outer periphery of the pier 4, thereby adjusting the angle of the airbag anti-collision device 3 according to the optimal anti-collision angle to adapt to the waterway with different navigation directions, or to deal with the sudden situation of the ship deviating from the waterway, and improve the anti-collision coverage.

[0047] The second drive wheel 13 is the core power transmission component of the rotating system. It needs to drive the airbag anti-collision device 3 (ring structure 311, outer shell 31, airbag 33, and lifting drive motor) to rotate around the bridge pier 4 via a flexible metal rod. Due to the instantaneous torque fluctuation when the rotating drive motor starts / stops, and the possible slight vibration of the transmission belt 14 during operation, as well as the slight shaking of the airbag caused by water flow impact, the connection part will be subjected to instantaneous fluctuations in tension or torque. If a purely rigid connecting rod is used for direct connection, the instantaneous stress will be concentrated at the connection point between the ring structure 311 and the second drive wheel 13, which is prone to causing problems with long-term use. The ring structure 311 is prone to cracking or weld point detachment, and it is easily broken directly once the stress exceeds its yield strength. In contrast, the flexible metal rod in this application can absorb the impact stress during rotation start / stop through its own slight elastic deformation, disperse the force of torque fluctuation on the connecting structure, avoid component damage caused by rigid impact, and extend the service life of the connection between the outer shell 31 and the second transmission wheel 13. The flexible metal rod is made of high-strength material, which can not only exert its flexible adjustment characteristics to avoid tensile fracture or torsional deformation, but also has rigidity to ensure the effective transmission of power from the second transmission wheel 13 to the ring structure 311.

[0048] In a specific embodiment, the lifting device 2 includes a rack 21, a turbine 22, a screw 23, and a lifting drive motor;

[0049] The rack 21 is welded vertically to the outside of the inner ring assembly 11 (inner ring), and the top of the rack 21 is welded and fixed to the second transmission wheel 13. A mounting rod is fixed to the inner side of the airbag anti-collision device 3. Figure 1 and Figure 2 (Not shown in the image), the turbine 22 is rotatably mounted on the mounting rod, the turbine 22 meshes with the rack 21, one end of the screw 23 is coaxially fixedly connected to the lifting drive motor inside the airbag anti-collision device 3, and the other end of the screw 23 meshes with the turbine 22.

[0050] The meshing surfaces of the rack 21 and the turbine 22 are in rigid metal contact, which can withstand the longitudinal impact force transmitted by the airbag during a collision (avoiding deformation of the transmission structure). The top of the rack 21 is welded and fixed to the second transmission wheel 13, and its connection strength allows the airbag anti-collision device 3 to maintain a stable position even under strong water flow impact.

[0051] After receiving a signal (an instruction to rise or fall) from the main control system, the lifting drive motor starts and drives the screw 23 to rotate. The screw 23 drives the turbine 22 to rotate. During the rotation of the turbine 22, it will rise or fall along the rack 21, thereby driving the entire airbag anti-collision device 3 to rise and fall synchronously along the rack 21. This achieves the raising and lowering of the airbag anti-collision device 3 along the pier 4, ultimately realizing the height adjustment of the airbag anti-collision device 3 on the pier 4 to meet the different anti-collision height requirements of different sizes of boats and ships, achieving more effective protection for the pier 4. At the same time, when not in operation, the airbag anti-collision device 3 can be moved as high as possible to avoid encroaching on the navigation area.

[0052] In a specific embodiment, the outer shell 31 includes an annular structure 311, a top shell 312, and a bottom shell 313;

[0053] The annular structure 311 is disposed on the outside of the inner ring assembly 11. The inner side of the annular structure 311 is welded and fixed to the second transmission wheel 13 through the flexible metal rod. The bottom of the outer side of the annular structure 311 is fixedly connected to the bottom shell 313. The top of the outer side of the annular structure 311 is connected to the top shell 312 through a telescopic structure. The annular structure 311, the top shell 312 and the bottom shell 313 form a shell (outer shell 31) structure with an opening on the outside. The airbag is disposed inside the shell structure, and the opening can be covered by the airbag.

[0054] The lifting drive motor is located inside the annular structure 311, and a schematic diagram of the annular structure 311 is shown below. Figure 6 As shown.

[0055] In this embodiment, both the top shell 312 and the bottom shell 313 are hexagonal stainless steel plates, and both are perpendicular to the axis of the pier 4. The outer periphery of the airbag is fixedly connected to the top shell 312, the bottom shell 313, and the annular structure 311 (using high-strength adhesives such as polyurethane or epoxy resin). After the airbag is inflated, its outer side can wrap around and cover the opening end of the outer shell 31 (i.e., the direction facing the ship to collide), thereby playing its role in protecting the ship and the pier 4 from damage. The lifting drive motor is located inside the annular structure 311. On the one hand, this can minimize the connection distance between the motor and the screw 23, avoid power loss in the intermediate transmission link, ensure that the torque output by the motor can be efficiently transmitted to the screw 23, and improve the response speed of the screw 23 driving the turbine 22 to rise and fall along the rack 21. On the other hand, there is no need to reserve additional space for motor installation outside the device, and the hollow area of ​​the annular structure 311 can be fully utilized, making the overall device structure more compact. The annular structure has a through hole to facilitate the connection between the screw and the lifting drive motor inside the annular structure. Sealing rubber is installed at the through hole to ensure sealing.

[0056] In a specific embodiment, the inner ring assembly 11 includes an inner ring 111 and rollers 112;

[0057] The inner ring has a roller mounting groove (not shown in the figure) on its inner side wall. The inner ring is fitted on the outer side of the pier 4. The roller is rotatably installed in the roller mounting groove, and the side of the roller away from the inner ring abuts against the outer peripheral side wall of the pier 4. The rack 21 is fixed (welded) to the outer side of the inner ring. The inner ring can be driven by the airbag anti-collision device 3 and the lifting device 2 (rack 21) and rotate around the outer periphery of the pier 4 through the roller.

[0058] The inner ring is a hollow cylindrical structure and a semi-integral structure. The rollers are pre-installed in the mounting groove of the semi-integral inner ring. Then, the inner ring with rollers is wrapped around and installed on the outer side wall of the pier 4 by welding. Subsequently, the rack 21 is welded to the outer wall of the inner ring, which facilitates on-site assembly at any height of the pier 4 without relying on the axial insertion space at the end of the pier 4.

[0059] The inner ring and rollers are similar to the outer ring and rollers of a bearing (the outer ring and rollers are rotatable), and the pier 4 is equivalent to the inner ring of the bearing (fixed). This bearing-like structure design can convert the sliding friction between the inner ring and the pier 4 into the rolling friction of the rollers, which greatly reduces the frictional resistance when the inner ring rotates around the pier 4. It is easy to cooperate with the rotating device 1 to realize that the airbag anti-collision device 3 can rotate smoothly 360° around the pier 4 under the drive of the rotating device 1.

[0060] In a specific embodiment, the telescopic structure includes a telescopic rod 33 and a telescopic rod driving device. The telescopic rod 33 is arranged vertically, with its top fixedly connected to the top shell 312 and its bottom fixedly connected to the bottom shell 313. The telescopic rod driving device is connected to the telescopic rod 33 and is used to drive the telescopic rod 33 to extend out of the annular structure 311 so that the outer shell 31 is in an open state or to drive the telescopic rod 33 to retract into the annular structure 311 so that the outer shell 31 is in a retracted state.

[0061] The annular structure 311 is provided with mounting slots for telescopic rods 33. The telescopic rods 33 are installed vertically in the mounting slots (only the bottom fixed end is welded to the annular structure 311, and the top of the telescopic end is welded to the top shell 312). In this embodiment, a telescopic rod 33 mounting slot is provided on the annular structure 311 at 90-degree intervals along the vertical direction, that is, four telescopic rod 33 mounting slots are provided on the inner side of the annular structure 311, corresponding to the installation of four telescopic rods 33. A telescopic rod 33 mounting slot is provided on the outer edge of the bottom shell 313 at 60-degree intervals along the vertical direction, that is, six telescopic rod 33 mounting slots are provided. The telescopic rod 33 mounting slot accommodates six telescopic rods 33. In practical applications, the number of telescopic rods 33 and their mounting slots can be adjusted as needed. The telescopic rods 33 are coated with an anti-rust metal coating to prevent seawater corrosion. The telescopic rod drive device is a miniature air pump, which can regulate the extension and retraction of the telescopic rods 33. The telescopic rods 33 allow for height adjustment of the outer shell 31, limiting the vertical height of the airbag. Different airbag inflation levels allow for varying degrees of opening of the anti-collision mechanism to meet the needs of different application scenarios.

[0062] When in operation, after the telescopic rod 33 drive motor receives the bridge anti-collision warning signal or start command from the main control system, it switches to forward rotation mode and transmits power to the telescopic rod 33 through the gear structure, driving the telescopic rod 33 to move vertically upward and gradually extend the annular structure 311. During the extension of the telescopic rod 33, the top shell 312 connected to it is simultaneously lifted upward until the telescopic rod 33 extends to the preset length. During this process, the airbag is inflated. After the top shell 312 (outer shell 31) is fully expanded to the preset height, the airbag is also fully inflated. During the extension of the telescopic rod 33, the lifting device 2 also receives the bridge anti-collision warning signal or start command simultaneously and drives the airbag anti-collision device 3 to a suitable position (anti-collision height) on the pier 4, so that the device forms an effective protective barrier for the bridge (pier 4) to deal with possible collision risks.

[0063] In the non-working state, taking the inner telescopic rod 33 as an example (the inner and outer telescopic rods operate in the same synchronous manner): The drive motor receives the standby command from the main control system, starts the reverse mode, and drives the telescopic rod 33 to move vertically downward through the gear structure, so that the telescopic rod 33 gradually retracts into the annular structure 311. At this time, the airbag is simultaneously deflated. As the telescopic rod 33 continues to retract, the top shell 312 connected to the telescopic rod 33 moves downward synchronously until the telescopic rod 33 is completely housed in the annular structure 311. The top shell 312 fits tightly against the outer top of the annular structure 311, so that the distance between the top shell 312 and the bottom shell 313 is minimized, forming a compact contracted state. At the same time, the deflation machine expels air from the airbag, so that the airbag volume decreases and is retracted into the outer shell 31. The lifting device 2 synchronously drives the airbag anti-collision device 3 to rise along the rack 21 and the pier 4, raising the airbag anti-collision device 3 away from the water surface, giving way to passing ships and ensuring that the device occupies as little navigation area as possible when not in operation.

[0064] In a specific embodiment, the airbag anti-collision device 3 further includes an inflator / deflator for inflating or deflating the airbag, the inflator / deflator being disposed inside the annular structure 311.

[0065] The airbag 33 has an air inlet and an air outlet, and the airbag anti-collision device 3 also includes a control unit and sensors;

[0066] The main control system of this device uses the distance data of the ship sent by the radar detection device to judge whether there is a risk. When it is judged that there is a risk of collision with the bridge pier 4, the main control system sends a trigger signal to the control unit of the airbag anti-collision device 3. The control unit controls the inflation and deflation machine to inflate the airbag. The sensor monitors the inflation status of the airbag in real time and can send the airbag status to the control unit in real time. The control unit can interact with the main control system, and can also receive the instructions of the main control system and control the start and stop of the inflation and deflation machine and the start time.

[0067] All drive motors and air filling / defilling machines in this application are equipped with waterproof covers to improve sealing and prevent the motors and air filling / defilling machines from being immersed in seawater. The exterior of the metal / steel structure and the welded joints are coated with anti-rust metal coatings to improve the corrosion resistance of the device structure and the service life of the device.

[0068] In a specific embodiment, it also includes a radar monitoring device and a main control system;

[0069] The radar monitoring device is installed at the bottom of the main beam of the bridge. It is used to monitor the distance between the ship and the pier 4 in real time to obtain distance data, monitor the position of the airbag anti-collision device 3 in real time to obtain position data, and send the distance data and position data to the main control system in real time.

[0070] The main control system is used to receive the distance data and position data, control the start and stop status, speed and running time of the rotary drive motor, control the start and stop status, speed and running time of the lifting drive motor, control the start and stop status, speed and running time of the telescopic rod drive device, and control the start and stop status, speed and running time of the inflation / deflation machine.

[0071] This embodiment also includes a sea level monitoring device and a ship navigation status detector. The sea level monitoring device comprises a marine observation station, a radar station, marine observation buoys, and an observation vessel to monitor marine environmental changes such as sea level height, water flow dynamics, and rainfall. This data is transmitted to the main control system, enabling the polygonal collision avoidance body to adjust its height in real time based on these changes. The ship navigation status detector is used to promptly detect key parameters such as the ship's speed, attitude, load, and position, and transmits these parameters to the main control system.

[0072] The working process of the device in this application is as follows:

[0073] The radar monitoring device monitors the passing vessels, infers their speed, deviation angle, size, etc., and calculates the possibility of the vessel colliding with the bridge pier 4 based on the relative distance between the vessel and the bridge pier 4 using the navigation data through the main control system (computer). At the same time, the sea level monitoring device monitors the current sea level height and transmits the current sea level height to the computer.

[0074] When the computer determines that a potential collision threshold has been reached, it analyzes the ship's speed, offset angle, ship size, relative distance from the pier 4, and current sea level to find the optimal collision avoidance position. The computer then transmits a signal to the motor and inflator, initiating automatic protection. The lifting drive motor rotates, driving the turbine 22 and screw 23 to move the airbag collision avoidance mechanism up and down along the rack 21, reaching the appropriate height. The rotation drive motor rotates, driving the first transmission wheel 12, which in turn drives the second transmission wheel 13 via the transmission belt 14. The rotation of the second transmission wheel 13, through a flexible metal rod and rollers, moves the airbag collision avoidance device 3, causing the entire collision avoidance mechanism to rotate horizontally around the pier 4, adjusting to the appropriate collision avoidance angle. The telescopic rod drive device then drives the outer shell 31 from its initial retracted state to its open state, inflating the airbag. At this time, the inflator inflates the airbag to a predetermined state, ready for collision avoidance.

[0075] When a ship impacts the designated location of the airbag, the impact force causes the airbag to deform. The airbag absorbs most of the impact force and protects the ship from damage through deformation. At the same time, the ring structure 311 absorbs the impact force of the ship a second time to protect the pier 4. The airbag uses its rebound property to turn the bow of the ship, changing the ship's forward direction and causing it to deviate from the pier 4, thus achieving collision avoidance. After the collision avoidance work is completed, the lifting device 2 drives the airbag collision avoidance device 3 to rise to a position that does not obstruct the ship's navigation. The telescopic rod drive device drives the outer shell 31 to change from the open state to the retracted state. At this time, the inflator deflates the airbag, and the airbag is stored in the outer shell 31.

[0076] The processes of data detection (monitoring), data acquisition, data sending (transmission), and data judgment (processing) in this embodiment are all existing technologies, and their more specific principles will not be elaborated here.

[0077] In summary, this device achieves multi-dimensional active protection for bridge piers through the coordinated action of lifting devices, rotating devices, airbag anti-collision devices, radar monitoring devices, and main control systems. It is particularly suitable for complex working conditions in navigable waters with different water levels and different vessel passage angles. At the same time, due to the inflatable and deflated nature of the airbags and the overall lifting and lowering capability of the device, it reduces the occupation of the waterway and improves the navigation capacity of the waterway.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotating, liftable bridge anti-collision device, characterized in that, It includes a rotating device (1), a lifting device (2), and an airbag anti-collision device (3); The rotating device (1) is rotatably mounted on the outer wall of the bridge pier (4). The lifting device (2) is mounted on the rotating device (1). The airbag anti-collision device (3) can be raised and lowered on the bridge pier (4) in the vertical direction through the lifting device (2) to adjust the vertical height of the airbag anti-collision device (3). The rotating device (1) can drive the lifting device (2) and the airbag anti-collision device (3) to rotate horizontally around the bridge pier (4) to adjust the horizontal angle of the airbag anti-collision device (3). The airbag anti-collision device (3) includes a housing (31) and an airbag (32) disposed inside the housing (31). The outer side of the housing (31) is covered by the airbag (32). In the working state, the housing (31) can be converted from the initial contracted state to the open state and support the inflated airbag. When not in operation, the outer shell (31) can be converted from an open state to a retracted state, and the deflated airbag can be driven away from the water surface by the lifting device (2).

2. The rotating and lifting bridge anti-collision device according to claim 1, characterized in that, The rotating device (1) includes an inner ring assembly (11), a first transmission wheel (12), a second transmission wheel (13), a transmission belt (14), and a rotation drive motor; The inner ring assembly (11) is rotatably fitted onto the outer wall of the pier (4). The lifting device (2) is installed on the outside of the inner ring assembly (11). The second transmission wheel (13) is rotatably installed on the pier (4). The second transmission wheel (13) is fixedly connected to the airbag anti-collision device (3) through a flexible metal rod (15). The rotary drive motor is installed on the pier (4). The rotary drive motor can drive the second transmission wheel (13) to rotate through the first transmission wheel (12) and the transmission belt (14). The rotation of the second transmission wheel (13) can drive the airbag anti-collision device (3), the lifting device (2), and the inner ring assembly (11) to rotate around the pier (4).

3. The rotating and lifting bridge anti-collision device according to claim 2, characterized in that, The lifting device (2) includes a rack (21), a turbine (22), a screw (23), and a lifting drive motor; The rack (21) is fixed to the outside of the inner ring assembly (11) in the vertical direction, and the top of the rack (21) is fixedly connected to the second transmission wheel (13). The airbag anti-collision device (3) has an installation rod fixed inside. The turbine (22) is rotatably mounted on the installation rod. The turbine (22) meshes with the rack (21). One end of the screw (23) is connected to the lifting drive motor located in the airbag anti-collision device (3), and the other end of the screw (23) meshes with the turbine (22).

4. The rotary liftable bridge anti-collision device according to claim 3, characterized in that, The outer shell (31) includes an annular structure (311), a top shell (312), and a bottom shell (313); The annular structure (311) is located on the outside of the inner ring assembly (11). The inner side of the annular structure (311) is fixedly connected to the second transmission wheel (13) through the flexible metal rod (15). The bottom of the outer side of the annular structure (311) is fixedly connected to the bottom shell (313). The top of the outer side of the annular structure (311) is connected to the top shell (312) through a telescopic structure. The annular structure (311), the top shell (312), and the bottom shell (313) form a shell structure with an opening on the outside. The airbag (32) is located inside the shell structure, and the opening can be covered by the airbag (32). The lifting drive motor is located inside the annular structure (311).

5. The rotary liftable bridge anti-collision device according to claim 3, characterized in that, The inner ring assembly (11) includes an inner ring (111) and rollers (112); The inner ring (111) is fitted on the outside of the pier (4), the roller (112) is rotatably installed on the inside of the inner ring, and the side of the roller (112) away from the inner ring (111) abuts against the outer peripheral wall of the pier (4). The rack (21) is fixed on the outside of the inner ring (111), and the inner ring (111) can be driven by the airbag anti-collision device (3) and rotate around the outer periphery of the pier (4) through the roller (112).

6. The rotary liftable bridge anti-collision device according to claim 4, characterized in that, The telescopic structure includes a telescopic rod (33) and a telescopic rod driving device. The telescopic rod (33) is arranged in a vertical direction. The top of the telescopic rod (33) is fixedly connected to the top shell (312), and the bottom of the telescopic rod (33) is fixedly connected to the bottom shell (313). The telescopic rod driving device is connected to the telescopic rod (33) and is used to drive the telescopic rod (33) to extend out of the annular structure (311) so that the outer shell (31) is in an open state or to drive the telescopic rod (33) to retract into the annular structure (311) so that the outer shell (31) is in a retracted state.

7. The rotary liftable bridge anti-collision device according to claim 6, characterized in that, The airbag anti-collision device (3) also includes an inflator / deflator for inflating or deflating the airbag, the inflator / deflator being disposed inside the annular structure (311).

8. The rotary liftable bridge anti-collision device according to claim 7, characterized in that, It also includes radar monitoring devices and a main control system; The radar monitoring device is installed at the bottom of the main beam of the bridge and is used to monitor the distance between the ship and the bridge pier (4) in real time to obtain distance data, monitor the position of the airbag anti-collision device (3) in real time to obtain position data, and send the distance data and position data to the main control system in real time. The main control system is used to receive the distance data and position data, control the start and stop of the rotary drive motor, control the start and stop of the lifting drive motor, control the start and stop of the telescopic rod drive device, and control the start and stop of the inflation / deflation machine.

Images