Bridge self-powered semi-active pneumatic control device with power generation function

Abstract

The application discloses a bridge self-powered semi-active pneumatic control device with power generation function, which comprises the following components: an outer rail assembly, comprising two oppositely arranged outer rails; an inner rail assembly, located between the two outer rails, comprising two oppositely arranged inner rails; and a pneumatic control assembly, arranged on the outer rail assembly and / or the inner rail assembly, comprising a sliding mechanism, a blade base connected to the sliding mechanism, and a blade assembly arranged on the blade base. The sliding mechanism can drive the blade base to slide horizontally along the outer rail and / or the inner rail. The blade base is provided with an electricity storage element and a rotating element. The blade assembly comprises a rotating frame and a plurality of blades arranged on the rotating frame. The rotating frame is connected to the rotating element. The application can disperse bridge airflow vortex through blade rotation, change the air flow state on the bridge surface through blade wake flow, improve the wind-induced vibration performance of the bridge, inhibit the formation of spanwise vortex in the bridge direction, and inhibit wind-induced vibration.

Description

Technical Field

[0001] This invention relates to the field of bridge technology, and in particular to a bridge self-powered semi-active pneumatic control device that also has a power generation function. Background Technology

[0002] Wind-induced vibration of long-span bridges is caused by the wind load exerted on the bridge by the separated flow and vortices generated when air flows across the bridge cross-section. For bridges spanning rivers, seas, and mountainous areas, as the span increases, the structural stiffness and damping gradually decrease, making wind-induced vibration problems more prominent. Whether a bridge experiences wind-induced vibration depends on the surrounding airflow pattern. Changing the airflow pattern around the bridge surface can fundamentally suppress wind-induced vibration. Methods to improve wind-induced vibration performance by altering the flow field distribution on the bridge surface are called aerodynamic measures, including passive and active aerodynamic measures.

[0003] Passive aerodynamic measures have been widely applied to long-span bridges, with common methods including stabilizing plates, grids, windbreaks, wing plates, diverter plates, skirts, and guide vanes. These auxiliary structures are fixed to the bridge surface and can significantly improve wind-induced vibration performance under specific conditions. However, existing research shows that passive aerodynamic control measures are usually selected after wind tunnel testing using scaled-down models. Due to the limitations of model size and relatively fixed structures, the vibration suppression effect of such aerodynamic measures is only effective under specific wind conditions. When the angle of attack or wind direction changes, the improvement effect of these aerodynamic measures on wind-induced vibration will be greatly reduced, and they may even induce another vibration while suppressing one. In this case, traditional passive aerodynamic measures will not be able to meet the requirements for improving the wind-induced vibration performance of bridges, meaning that it is difficult to guarantee their control effect when the wind environment changes. Active aerodynamic measures can better avoid the above shortcomings by actively changing the shape or function of auxiliary structures to affect the flow field distribution around the bridge, such as variable-angle wing grids and active blowing and suction devices. Active aerodynamic measures can artificially intervene in wind-induced vibration based on sensor monitoring results, making them more effective and flexible than passive measures. However, active control often requires complex circuits and braking devices to adjust the attitude or working state to cope with various working conditions, which greatly increases the difficulty of construction and maintenance, and makes it more difficult to apply in practice. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a bridge self-powered semi-active pneumatic control device that also has power generation capabilities.

[0005] To achieve the above objectives, an embodiment of the present invention provides the following technical solution:

[0006] A bridge self-powered semi-active pneumatic control device that also has power generation capabilities includes:

[0007] An outer railing assembly, the outer railing assembly comprising two outer railings arranged opposite each other;

[0008] An inner railing assembly is located between the two outer railings, the inner railing assembly comprising two inner railings arranged opposite each other;

[0009] A pneumatic control assembly is disposed on the outer railing assembly and / or the inner railing assembly. The pneumatic control assembly includes a sliding mechanism, a blade base connected to the sliding mechanism, and a blade assembly disposed on the blade base. The sliding mechanism can drive the blade base to slide horizontally along the outer railing and / or the inner railing. The blade base is provided with an energy storage device and a rotating device. The blade assembly includes a rotating frame and a plurality of blades disposed on the rotating frame. The rotating frame is connected to the rotating device.

[0010] As a further improvement of the present invention, the sliding mechanism includes a first sliding member, the blade base includes a first blade base body, the first sliding member is connected to the first blade base body, and the rotating member includes a vertically arranged first rotating shaft, which is rotatably connected to the first blade base body.

[0011] As a further improvement of the present invention, the first sliding member includes a first pulley and a first motor. A first wheel axle is horizontally arranged on the first pulley. The first motor is disposed on the first blade base body and drives the first wheel axle to rotate. The first wheel axle is rotatably connected to the first blade base body.

[0012] As a further improvement of the present invention, the first blade base body includes a hollow first frame-shaped base and a first cylindrical rod connected to the first frame-shaped base.

[0013] As a further improvement of the present invention, the sliding mechanism includes two second sliding members arranged opposite each other in the vertical direction, the blade base includes two second blade base bodies arranged opposite each other in the vertical direction, each second sliding member is connected to the corresponding second blade base body, and the rotating member includes two second rotating shafts arranged opposite each other in the vertical direction, each second rotating shaft is rotatably connected to the corresponding second blade base body.

[0014] As a further improvement of the present invention, the second sliding member includes a second pulley and a second motor. A second wheel shaft is horizontally arranged on the second pulley. The second motor is disposed on the second blade base body and drives the second wheel shaft to rotate. The second wheel shaft is rotatably connected to the second blade base body.

[0015] As a further improvement of the present invention, the second blade base body includes a hollow second frame-shaped base and a second cylindrical rod connected to the second frame-shaped base.

[0016] As a further improvement of the present invention, the rotating frame includes a sleeve extending in a vertical direction, a plurality of bearing components spaced circumferentially on the outer circumferential surface of the sleeve, a plurality of blades being respectively connected to the plurality of bearing components, the blades extending in a vertical direction, and the bearing components including at least one bearing rod.

[0017] As a further improvement of the present invention, the bearing assembly includes two bearing rods, which are symmetrically arranged in the vertical direction and form a V-shape.

[0018] As a further improvement of the present invention, the energy storage device is a storage battery.

[0019] The beneficial effects of this invention are:

[0020] (1) According to the measured different bridge vibration states, the present invention can adjust the rotation speed of the shaft, thereby adjusting the rotation speed of the blades. The rotation of the blades will disperse the airflow vortex of the bridge, and the blade wake will change the airflow state on the bridge surface, avoid generating regular vortices to excite bridge wind vibration, and improve the wind-induced vibration performance of the bridge.

[0021] (2) By moving the pneumatic control components along the outer railing and / or inner railing, the position of the blades and the spacing between adjacent pneumatic control components are changed, thereby changing the longitudinal arrangement of the pneumatic control components on the main beam, thereby suppressing the formation of spanwise vortices in the longitudinal direction of the bridge, making the aerodynamic forces between different sections in the longitudinal direction asynchronous, and using the stiffness of the main beam itself to suppress wind-induced vibration.

[0022] (3) The blades of the self-powered semi-active pneumatic control measure of the present invention can power themselves during rotation, without the need for external wiring, and can control the start and stop of the pneumatic control components, the rotation of the shaft and the movement along the outer railing and / or the inner railing. Attached Figure Description

[0023] 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 only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a perspective view of a preferred embodiment of the present invention, showing the arrangement of the components on the main beam.

[0025] Figure 2 for Figure 1 Enlarged diagram of A in the middle;

[0026] Figure 3 This is a front view of a preferred embodiment of the present invention, arranged on the main beam;

[0027] Figure 4 This is a schematic diagram of the structure of the sliding mechanism disposed on the first outer railing in a preferred embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the connection between the sliding mechanism and the rotating frame in a preferred embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the rotating frame according to a preferred embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of the first sliding member in a preferred embodiment of the present invention;

[0031] Figure 8 This is a perspective view of the preferred embodiment of the present invention, which is arranged on the main beam.

[0032] Figure 9 for Figure 8 Enlarged diagram of B in the middle;

[0033] Figure 10 This is a front view of the preferred embodiment of the present invention, which is arranged on the main beam;

[0034] Figure 11 This is a schematic diagram of the structure of the sliding mechanism disposed on the second outer railing in the preferred embodiment of the present invention;

[0035] Figure 12 This is a schematic diagram of the connection between the sliding mechanism and the rotating frame in a preferred embodiment of the present invention;

[0036] Figure 13 This is a schematic diagram of the rotating frame according to a preferred embodiment of the present invention;

[0037] Figure 14 This is a schematic diagram of the structure of the second sliding member in a preferred embodiment of the present invention;

[0038] In the diagram: 1. Column; 2. Main beam; 101. First outer railing; 102. First inner railing; 103. First pneumatic control assembly; 104. First rotating frame; 1041. First sleeve; 1042. First bearing rod; 105. First blade; 107. First sliding member; 1071. First pulley; 1072. First axle; 108. First blade base body; 1081. First frame base; 1082. First cylindrical rod; 10 9. First rotating shaft; 201. Second outer railing; 202. Second inner railing; 203. Second pneumatic control assembly; 204. Second rotating frame; 2041. Second sleeve; 2042. Second bearing rod; 205. Second blade; 207. Second sliding member; 2071. Second pulley; 2072. Second wheel axle; 208. Second blade base body; 2081. Second frame base; 2082. Second cylindrical rod; 209. Second rotating shaft. Detailed Implementation

[0039] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0040] Example 1

[0041] Please see Figures 1-7This application discloses a bridge self-powered semi-active pneumatic control device with power generation function, comprising: an outer railing assembly, which includes two first outer railings 101 arranged opposite each other; an inner railing assembly, located between the two first outer railings 101, which includes two first inner railings 102 arranged opposite each other; and a first pneumatic control assembly 103, disposed on the outer railing assembly and / or the inner railing assembly. The pneumatic control assembly includes a sliding mechanism, a blade base connected to the sliding mechanism, and a blade assembly disposed on the blade base. The sliding mechanism can drive the blade base to slide horizontally along the first outer railings 101 and / or the first inner railings 102. The blade base is provided with an energy storage component and a rotating component. The blade assembly includes a first rotating frame 104 and a plurality of first blades 105 disposed on the first rotating frame 104. The first rotating frame 104 is connected to the rotating component. The first aerodynamic control component 103 is positioned on the outer railing assembly and / or the inner railing assembly according to the wind environment and wind vibration control requirements of the bridge site. It can be installed at the first outer railing 101, the first inner railing 102, or both. The rotation of the first blade 105 of the first aerodynamic control component 103 prevents vortices from forming in the direction of the incoming flow. The wake alters the airflow field around the bridge deck, thus changing the air velocity distribution on the bridge surface and improving the bridge's resistance to wind-induced vibration. Furthermore, the first aerodynamic control component 103 can slide horizontally along the first outer railing 101 and / or the first inner railing 102, thereby changing the distance between adjacent aerodynamic control components 103 and facilitating adjustments to the airflow pattern around the bridge cross-section based on the wind-induced vibration conditions.

[0042] When the first pneumatic control component 103 is installed only at the first outer railing 101, the sliding mechanism drives the blade base to slide horizontally along the first outer railing 101. At this time, the first outer railing 101 serves as the track for the first pneumatic control component 103 to move along the bridge direction. When the first pneumatic control component 103 is installed only at the first inner railing 102, the sliding mechanism drives the blade base to slide horizontally along the first inner railing 102. At this time, the first inner railing 102 serves as the track for the first pneumatic control component 103 to move along the bridge direction. When the first pneumatic control component 103 is installed at both the first outer railing 101 and the first inner railing 102, the sliding mechanism drives the blade base to slide horizontally along the first outer railing 101 and the first inner railing 102 respectively. At this time, both the first outer railing 101 and the first inner railing 102 serve as the tracks for the first pneumatic control component 103 to move along the bridge direction.

[0043] Specifically, the sliding mechanism includes a first sliding member 107, the blade base includes a first blade base body 108, the first sliding member 107 is connected to the first blade base body 108, and the rotating member includes a vertically arranged first rotating shaft 109, which is rotatably connected to the first blade base body 108. Thus, when the first sliding member 107 moves along the longitudinal direction of the bridge, it drives the first blade base body 108 to move along the longitudinal direction of the bridge.

[0044] More specifically, the first sliding member 107 includes a first pulley 1071 and a first motor (not shown in the figure). A first axle 1072 is horizontally mounted on the first pulley 1071. The first motor is mounted on the first blade base body 108 and drives the first axle 1072 to rotate. The first axle 1072 is rotatably connected to the first blade base body 108. The first axle 1072 can cooperate with the first blade base body 108 through bearings, so that when the first axle 1072 rotates, the first blade base body 108 will not rotate accordingly. When the first motor drives the first axle 1072 to rotate, the first pulley 1071 moves on the first outer railing 101 and / or the first inner railing 102, thereby driving the first blade base body 108 to move along the first outer railing 101 and / or the first inner railing 102.

[0045] Specifically, the first blade base body 108 includes a hollow first frame-shaped base 1081 and a first cylindrical rod 1082 connected to the first frame-shaped base 1081. The hollow first frame-shaped base 1081 is convenient to be fitted onto the first outer railing 101 and / or the first inner railing 102, and can cooperate with the first outer railing 101 and / or the first inner railing 102 to limit the first frame-shaped base 1081, ensuring that the first frame-shaped base 1081 moves horizontally. The first cylindrical rod 1082 is convenient to install the first rotating shaft 109, which allows the first rotating shaft 109 to rotate relative to the first cylindrical rod 1082.

[0046] Please see Figure 6The first rotating frame 104 includes a first sleeve 1041 extending vertically, and multiple support components spaced circumferentially on the outer circumferential surface of the first sleeve 1041. Multiple first blades 105 are respectively connected to the multiple support components, and the first blades 105 extend vertically. Each support component includes at least one first support rod 1042. The vertical extension of the first sleeve 1041 reduces the operating radius of the first pneumatic control component 103, facilitating the dense arrangement of multiple first pneumatic control components 103, and also enhances its adaptability to different wind directions. The vertical extension of the first blades 105, with their well-designed aerodynamic edges, results in lower wind resistance, lower starting speed, and operation even at low wind speeds. At this time, the first sleeve 1041 is fixedly connected to the first rotating shaft 109, and the first blades 105 are connected to the first support rod 1042.

[0047] To improve the stability of the first blade 105 on the support assembly and ensure the rotational stability of the first blade 105, the support assembly preferably includes two first support rods 1042, which are symmetrically arranged vertically and form a V-shape. Of the two first support rods 1042, one extends obliquely upwards and the other extends obliquely downwards. Preferably, each blade assembly has three first blades 105.

[0048] Specifically, the energy storage device is a battery (not shown in the figure), which is installed inside the first frame-shaped base 1081.

[0049] Preferably, two first pneumatic control components 103 are provided between every two adjacent posts 1 for supporting the first outer railing 101 and / or the first inner railing 102.

[0050] Wind-induced vibrations of bridge structures are mainly classified into buffeting, vortex-induced vibration, flutter, and galloping vibrations. All four types of vibrations are related to the flow around the surface of the main girder 2 and the wake morphology. The rotating first blade 105 generates a downstream wake vortex on the bridge surface and in the wake region. In the transverse direction, the blade wake vortex will affect the original airflow and avoid the concentration of aerodynamic forces; in the longitudinal direction, the downstream vortex of the blade will prevent the generation of spanwise flow. By irregularly setting the spacing between adjacent first aerodynamic control components 103 to irregularly arrange the first blade 105, the spanwise correlation of the main girder can be reduced, and the generation of wind-induced vibrations can be suppressed by utilizing the stiffness of the main girder itself.

[0051] The specific working principle is as follows:

[0052] When there is no wind or the wind speed is very low, the first pneumatic control component 103 can be moved to lock the first blade 105 and stop the machine without affecting bridge traffic; the locking of the first blade 105 is achieved by braking the first rotating shaft 109.

[0053] When the wind speed exceeds the set minimum wind speed, the first blade 105 is unlocked, and the first blade 105 rotates to generate electricity. The first aerodynamic control component 103 acts as a wind turbine generator, storing the wind power in the battery.

[0054] When the bridge experiences significant wind-induced vibration, such as vortex-induced vibration or flutter, the first shaft 109 rotates at a set speed according to the vibration amplitude, thereby driving the first blade 105 to rotate at a set speed. This changes the flow state around the bridge surface through the wake. If necessary, the first aerodynamic control component 103 can be moved appropriately to change its position in the longitudinal direction, thereby improving the bridge's wind-induced vibration performance in both the longitudinal and spanwise directions.

[0055] Example 2

[0056] Please see Figures 8-14 This application discloses a bridge self-powered semi-active pneumatic control device with power generation function, comprising: an outer railing assembly, which includes two second outer railings 201 arranged opposite each other; an inner railing assembly, located between the two second outer railings 201, which includes two second inner railings 202 arranged opposite each other; and a second pneumatic control assembly 203, disposed on the outer railing assembly and / or the inner railing assembly. The second pneumatic control assembly 203 includes a sliding mechanism, a blade base connected to the sliding mechanism, and a blade assembly disposed on the blade base. The sliding mechanism can drive the blade base to slide horizontally along the second outer railings 201 and / or the second inner railings 202. The blade base is provided with an energy storage component and a rotating component. The blade assembly includes a second rotating frame 204 and a plurality of second blades 205 disposed on the second rotating frame 204. The second rotating frame 204 is connected to the rotating component. The second pneumatic control component 203 is installed on the outer railing assembly and / or the inner railing assembly. Depending on the wind environment and wind-induced vibration control requirements at the bridge site, the second pneumatic control component 203 can be installed at the second outer railing 201, or the second inner railing 202, or both, to alter the airflow velocity distribution on the bridge surface. Furthermore, the second pneumatic control component 203 can slide horizontally along the second outer railing 201 and / or the second inner railing 202, thereby changing the distance between adjacent second pneumatic control components 203, thus facilitating adjustments to the airflow pattern around the bridge cross-section based on wind-induced vibration conditions.

[0057] When the second pneumatic control component 203 is installed only at the second outer railing 201, the sliding mechanism drives the blade base to slide horizontally along the second outer railing 201. At this time, the second outer railing 201 serves as the track for the second pneumatic control component 203 to move along the bridge direction. When the second pneumatic control component 203 is installed only at the second inner railing 202, the sliding mechanism drives the blade base to slide horizontally along the second inner railing 202. At this time, the second inner railing 202 serves as the track for the second pneumatic control component 203 to move along the bridge direction. When the second pneumatic control component 203 is installed at both the second outer railing 201 and the second inner railing 202, the sliding mechanism drives the blade base to slide horizontally along both the second outer railing 201 and the second inner railing 202. At this time, both the second outer railing 201 and the second inner railing 202 serve as the tracks for the second pneumatic control component 203 to move along the bridge direction.

[0058] Specifically, please refer to Figure 11 The sliding mechanism includes two second sliding members 207 arranged opposite each other in the vertical direction. The blade base includes two second blade base bodies 208 arranged opposite each other in the vertical direction. Each second sliding member 207 is connected to a corresponding second blade base body 208. The rotating member includes two second rotating shafts 209 arranged opposite each other in the vertical direction. Each second rotating shaft 209 is rotatably connected to a corresponding second blade base body 208. Thus, when the two second sliding members 207 move along the bridge direction, they respectively drive the two second blade base bodies 208 to move along the bridge direction.

[0059] For more details, please refer to Figure 11 , Figure 14 The second sliding member 207 includes a second pulley 2071 and a second motor (not shown in the figure). A second axle 2072 is horizontally mounted on the second pulley 2071. The second motor is mounted on the second blade base body 208 and drives the second axle 2072 to rotate. The second axle 2072 is rotatably connected to the second blade base body 208. The second axle 2072 can cooperate with the second blade base body 208 through bearings, so that when the second axle 2072 rotates, the second blade base body 208 will not rotate accordingly. When the second motor drives the second axle 2072 to rotate, the second pulley 2071 moves on the second outer rail 201 and / or the second inner rail 202, thereby driving the second blade base body 208 to move along the second outer rail 201 and / or the second inner rail 202.

[0060] Specifically, the second blade base body 208 includes a hollow second frame-shaped base 2081 and a second cylindrical rod 2082 connected to the second frame-shaped base 2081. The hollow second frame-shaped base 2081 is convenient to be fitted onto the second outer railing 201 and / or the second inner railing 202, and can cooperate with the second outer railing 201 and / or the second inner railing 202 to limit the second frame-shaped base 2081, ensuring that the second frame-shaped base 2081 moves horizontally. The second cylindrical rod 2082 is convenient to install the second rotating shaft 209, which allows the second rotating shaft 209 to rotate relative to the second cylindrical rod 2082.

[0061] Please see Figure 13 The second rotating frame 204 includes a second sleeve 2041 extending vertically, and multiple support components spaced circumferentially on the outer circumferential surface of the second sleeve 2041. Multiple second blades 205 are respectively connected to the multiple second support components, and the second blades 205 extend vertically. Each second support component includes at least one second support rod 2042. The vertical extension of the second sleeve 2041 reduces the operating radius of the second pneumatic control component 203, facilitating the dense arrangement of multiple second pneumatic control components 203, and also enhances its adaptability to different wind directions. The vertical extension of the second blades 205, with their well-designed aerodynamic edges, results in lower wind resistance, lower starting speed, and operation even at low wind speeds. At this time, the second sleeve 2041 is fixedly connected to the second rotating shaft 209, and the second blades 205 are connected to the second support rod 2042.

[0062] To improve the stability of the second blade 205 on the support assembly and ensure the rotational stability of the second blade 205, the support assembly preferably includes two second support rods 2042, which are symmetrically arranged in the vertical direction and form a V-shape. Of the two second support rods 2042, one extends obliquely upward and the other extends obliquely downward.

[0063] Specifically, the energy storage device includes two batteries (not shown in the figure), each battery being disposed within a corresponding second frame-shaped base 2081.

[0064] Wind-induced vibrations of bridge structures are mainly classified into buffeting, vortex-induced vibration, flutter, and galloping vibrations. All four types of vibration are related to the flow around the main girder surface and the wake morphology. The rotating second blade 205 generates a downstream wake vortex on the bridge surface and in the wake region. In the transverse direction, the blade wake vortex affects the original airflow, preventing the concentration of aerodynamic forces; in the longitudinal direction, the downstream vortex of the blade inhibits the generation of spanwise flow. By irregularly arranging the blades, the spanwise correlation of the main girder can be reduced, and the main girder's own stiffness can be used to suppress wind-induced vibrations.

[0065] The specific working principle is as follows:

[0066] When there is no wind or the wind speed is very low, the second pneumatic control component 203 can be moved to lock the second blade 205 and stop the machine without affecting bridge traffic; the locking of the second blade 205 is achieved by braking the second rotating shaft 209.

[0067] When the wind speed exceeds the set minimum wind speed, the second blade 205 is unlocked, and the second blade 205 rotates to generate electricity. The second aerodynamic control component 203 acts as a wind turbine generator to store wind power in the battery.

[0068] When the bridge experiences significant wind-induced vibration, such as vortex-induced vibration or flutter, the second shaft 209 rotates at a set speed according to the vibration amplitude, thereby driving the second blade 205 to rotate at a set speed. This changes the flow state around the bridge surface through the wake. If necessary, the second aerodynamic control component 203 can be moved appropriately to change its position in the longitudinal direction, thereby improving the bridge's wind-induced vibration performance in both the longitudinal and spanwise directions.

[0069] The pneumatic control device in Embodiment 1 is designed for column mounting, while the pneumatic control device in Embodiment 2 is designed for embedded mounting. The choice between column mounting and embedded mounting depends on the different bridge deck facility layouts and pneumatic control requirements. If there are height restrictions on bridge deck facilities, embedded mounting can be selected; if the wind speed at the bridge site is high or the requirements for controlling wind-induced vibrations of the bridge are high, necessitating the use of larger rotating blades, column mounting can be selected.

[0070] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0071] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bridge self-powered semi-active pneumatic control device with power generation function, characterized in that, include: An outer railing assembly, the outer railing assembly comprising two outer railings arranged opposite each other; An inner railing assembly is located between the two outer railings, the inner railing assembly comprising two inner railings arranged opposite each other; A pneumatic control assembly is disposed on the outer railing assembly and / or the inner railing assembly. The pneumatic control assembly includes a sliding mechanism, a blade base connected to the sliding mechanism, and a blade assembly disposed on the blade base. The sliding mechanism can drive the blade base to slide horizontally along the outer railing and / or the inner railing. The blade base is provided with an energy storage device and a rotating component. The blade assembly includes a rotating frame and a plurality of blades disposed on the rotating frame. The rotating frame is connected to the rotating component. When there is no wind or the wind speed is very low, the pneumatic control component can be moved to lock the blades and stop the machine; When the wind speed exceeds the set minimum wind speed, the blade lock is released, and the blade rotates to generate electricity. The aerodynamic control component acts as a wind turbine generator. When the bridge experiences significant wind-induced vibration, the rotating component rotates at a set speed according to the vibration amplitude, thereby driving the blades to rotate at a set speed. By changing the flow state around the bridge surface through the wake, the pneumatic control component can be moved appropriately to change its position in the longitudinal direction of the bridge.

2. The bridge self-powered semi-active pneumatic control device with power generation function according to claim 1, characterized in that, The sliding mechanism includes a first sliding member, the blade base includes a first blade base body, the first sliding member is connected to the first blade base body, and the rotating member includes a vertically arranged first rotating shaft, which is rotatably connected to the first blade base body.

3. The bridge self-powered semi-active pneumatic control device with power generation function according to claim 2, characterized in that, The first sliding member includes a first pulley and a first motor. A first axle is horizontally arranged on the first pulley. The first motor is disposed on the first blade base body and drives the first axle to rotate. The first axle is rotatably connected to the first blade base body.

4. A bridge self-powered semi-active pneumatic control device with power generation function as described in claim 2, characterized in that, The first blade base body includes a hollow first frame-shaped base and a first cylindrical rod connected to the first frame-shaped base.

5. A bridge self-powered semi-active pneumatic control device with power generation function as described in claim 1, characterized in that, The sliding mechanism includes two second sliding members arranged opposite each other in the vertical direction, the blade base includes two second blade base bodies arranged opposite each other in the vertical direction, each second sliding member is connected to the corresponding second blade base body, and the rotating member includes two second rotating shafts arranged opposite each other in the vertical direction, each second rotating shaft is rotatably connected to the corresponding second blade base body.

6. A bridge self-powered semi-active pneumatic control device with power generation function as described in claim 5, characterized in that, The second sliding member includes a second pulley and a second motor. A second wheel shaft is horizontally arranged on the second pulley. The second motor is disposed on the second blade base body and drives the second wheel shaft to rotate. The second wheel shaft is rotatably connected to the second blade base body.

7. A bridge self-powered semi-active pneumatic control device with power generation function as described in claim 5, characterized in that, The second blade base body includes a hollow second frame-shaped base and a second cylindrical rod connected to the second frame-shaped base.

8. A bridge self-powered semi-active pneumatic control device with power generation function as described in claim 1, characterized in that, The rotating frame includes a sleeve extending in a vertical direction and a plurality of bearing components spaced circumferentially on the outer circumferential surface of the sleeve. The plurality of blades are respectively connected to the plurality of bearing components. The blades extend in a vertical direction, and the bearing components include at least one bearing rod.

9. A bridge self-powered semi-active pneumatic control device with power generation function as described in claim 8, characterized in that, The load-bearing component includes two load-bearing rods, which are symmetrically arranged in the vertical direction and form a V-shape.

10. A bridge self-powered semi-active pneumatic control device with power generation function according to claim 1, characterized in that, The energy storage device is a storage battery.

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