Self-adaptive wind shielding device for improving wind resistance of bridge and regulation and control method of self-adaptive wind shielding device

Abstract

The invention relates to the technical field of civil engineering, in particular to a self-adaptive wind shielding device for improving the wind resistance of a bridge and a regulation and control method thereof.The self-adaptive wind shielding device for improving the wind resistance of the bridge comprises two wind barrier stand columns and a plurality of wind barrier strips rotationally connected between the two wind barrier stand columns; each wind barrier strip is provided with a plurality of air inlets, and a self-adaptive pore regulator is inserted in each air inlet. In the using process, the wind shielding device can flexibly adjust the shapes and the porosity of the air inlets in the transverse wind barrier strips at different heights according to changes of the external wind environment, the ventilation rate between the transverse wind barrier strips at different heights can be changed, and therefore cooperative regulation and control of the shapes and the porosity of the air inlets and the ventilation rate between the transverse wind barrier strips are achieved; the bridge can actively adapt to changes of different wind environments, and the running safety of a train is guaranteed; meanwhile, the wind shielding device further has the advantages of being durable, convenient to disassemble and assemble, capable of being recycled and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of civil engineering, and in particular to an adaptive wind shielding device for improving the wind resistance of a bridge and a control method thereof. Background Art

[0002] Against the backdrop of lightweight development of high-speed trains, the impact of wind on train safety is becoming increasingly serious, potentially causing the vehicle to sway, slide, or even roll over. Therefore, installing windshields to reduce wind speed on the bridge deck and improve driving safety has become a necessary measure.

[0003] In order to ensure the safe operation of trains in strong winds, relevant scholars have adopted strategies such as setting up windbreak walls on embankments and installing wind barriers on bridges. However, the wind-resistant devices of this type of method cannot adjust the porosity, air inlet shape and height in real time according to changes in the wind environment, which has a great impact on the aerodynamic performance of the bridge and driving safety and comfort. At the same time, they have the disadvantages of low adaptability to variable strong wind environments and high economic costs. Summary of the invention

[0004] Based on this, it is necessary to provide an adaptive windshield device and a control method for improving the wind resistance of bridges, in view of the problems that the current bridge windshield devices cannot adjust the porosity, air inlet shape and height in real time according to changes in the wind environment during use, which has a great impact on the aerodynamic performance of the bridge and driving safety and comfort, and has low adaptability to changeable strong wind environments and high economic costs.

[0005] The above purpose is achieved through the following technical solutions:

[0006] An adaptive windshield device for improving the wind resistance of a bridge, the adaptive windshield device for improving the wind resistance of a bridge comprising two vertically arranged wind barrier columns that are spaced apart, a horizontal wind barrier strip being rotatably connected between the two wind barrier columns, a plurality of wind barrier strips being provided and arranged in sequence along a vertical direction, the wind barrier strips being capable of changing the air permeability between adjacent wind barrier strips when rotating, a plurality of air inlets being provided on each of the wind barrier strips, an adaptive pore regulator being inserted in each of the air inlets, the adaptive pore regulator being configured to be able to adjust the porosity of the wind barrier strips and the shape of the air inlets in real time according to different wind environments.

[0007] Furthermore, the adaptive aperture regulator includes a magnesium alloy frame, an adjustment part and N blades, the magnesium alloy frame is fixedly arranged on the wind barrier strip; the first end of the blade is movably arranged on the magnesium alloy frame, and the second end is suspended, the N blades are evenly arranged along the circumference, and together form a centrally symmetrical opening and closing structure; the adjustment part is configured to drive the N blades to move synchronously to change the opening and closing angle of the opening and closing structure; N is a natural number greater than or equal to two.

[0008] Furthermore, the adjustment portion includes N rounded rectangular holes and 2N cylindrical pins, and the N rounded rectangular holes are evenly arranged along the circumferential direction; the magnesium alloy frame is provided with a regular N-sided polygonal slideway; the cylindrical pins are grouped in pairs, and the two cylindrical pins in the same group are respectively fixed on both sides of the first end of the same blade, and one of the cylindrical pins is slidably inserted in the rounded rectangular hole, and the other cylindrical pin is slidably inserted in the regular N-sided polygonal slideway.

[0009] Furthermore, the adjustment part includes N connecting rods, which are arranged one by one with the blades and are evenly arranged along the circumferential direction. One end of the connecting rod is hinged to the magnesium alloy frame, and the other end is hinged to the blade; the first end of the blade is hinged to the magnesium alloy frame.

[0010] Furthermore, the adjustment portion includes N rounded rectangular grooves and 2N cylindrical pins, and the N rounded rectangular grooves are evenly arranged along the circumferential direction; the cylindrical pins are grouped in pairs, and the two cylindrical pins in the same group are corresponding to the same blade, and the first end of the blade is hinged to the magnesium alloy frame through one of the cylindrical pins, and the third end of the blade is slidably inserted into the rounded rectangular groove through another cylindrical pin.

[0011] Furthermore, the adjustment part includes a wheel A, two wheels B, N wheels C and a rotating belt, the wheel A is rotatably arranged on the magnesium alloy frame; the N wheels C are evenly arranged along the circumferential direction and are all capable of self-rotation; the blades and the wheels C are arranged in a one-to-one correspondence, and the first ends of the blades are fixedly sleeved on the wheels C; the rotating belt is simultaneously transmission-sleeved on the outside of the wheel A and the N wheels C; the two wheels B are both rotatably arranged on the magnesium alloy frame, and are symmetrically arranged about the wheel A, and are transmission-connected to the outside of the rotating belt.

[0012] Furthermore, a blade locking structure is inserted inside the magnesium alloy frame, and the blade locking structure is used to lock the blade when it moves to a desired position.

[0013] Furthermore, the blade locking structure includes a buckle, a locking pin or a locking plate.

[0014] Furthermore, the adaptive aperture regulator installed on the same wind barrier strip has different air inlet shapes.

[0015] The present invention also provides a control method for an adaptive wind shielding device for improving the wind resistance of a bridge, and the control method for an adaptive wind shielding device for improving the wind resistance of a bridge comprises the following steps:

[0016] S1, measure wind speed, wind direction and wind attack angle, convert physical signals into electrical signals, and transmit them to the work recorder for processing;

[0017] S2. Based on the recorded data, the porosity, air inlet shape and rotation angle of the wind barrier strips in different wind zones are calculated through the built-in algorithm, and then the opening and closing angle of the opening and closing structure is changed to adjust the porosity and air inlet shape; at the same time, the rotation angle of the wind barrier strips is changed to adjust the air permeability.

[0018] The beneficial effects of the present invention are:

[0019] The present invention provides an adaptive wind shielding device for improving the wind resistance of a bridge and a control method thereof. By changing the porosity of wind barrier strips, the shape of air inlets and the air permeability between wind barrier strips, the air is diverted into a plurality of small flow channels, thereby making the wind from different directions more sufficient and uniform when flowing through the wind barrier strips, and at the same time avoiding noise problems caused by excessive wind speed and air volume; multiple airflows at different angles and heights interfere with each other to form a reduced wind speed zone on the leeward side, reducing the incoming wind speed and turbulence intensity, and effectively reducing the effects of wind and the risk of impact and damage to trains during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the exploded parts of an adaptive windshield device for improving the wind resistance of a bridge provided by a first embodiment of the present invention;

[0021] Figure 2 Schematic diagram of a three-dimensional structure of an adaptive gap regulator of an adaptive wind shielding device for improving wind resistance of a bridge provided by the first embodiment of the present invention installed on a wind barrier strip Figure 1 ;

[0022] Figure 3 Schematic diagram of a three-dimensional structure of an adaptive gap regulator of an adaptive wind shielding device for improving wind resistance of a bridge provided by the first embodiment of the present invention installed on a wind barrier strip Figure 2 ;

[0023] Figure 4 A schematic diagram of a top view of the structure of an adaptive pore regulator of an adaptive wind shielding device for improving wind resistance of a bridge provided in the first embodiment of the present invention;

[0024] Figure 5 A bottom-up structural schematic diagram of an adaptive aperture regulator of an adaptive wind shielding device for improving wind resistance of a bridge provided in a first embodiment of the present invention;

[0025] Figure 6 Schematic diagram of the three-dimensional structure of the magnesium alloy frame of the adaptive pore regulator of the adaptive wind shielding device for improving the wind resistance of the bridge provided by the first embodiment of the present invention Figure 1;

[0026] Figure 7 Schematic diagram of the three-dimensional structure of the magnesium alloy frame of the adaptive pore regulator of the adaptive wind shielding device for improving the wind resistance of the bridge provided by the first embodiment of the present invention Figure 2 ;

[0027] Figure 8 A schematic diagram of the three-dimensional structure of a blade of an adaptive aperture regulator of an adaptive wind shielding device for improving wind resistance of a bridge provided in the first embodiment of the present invention;

[0028] Fig. 9 A schematic diagram of a top view of the structure of an adaptive pore regulator of an adaptive wind shielding device for improving the wind resistance of a bridge provided in a second embodiment of the present invention;

[0029] Fig.10 A bottom-up structural schematic diagram of an adaptive aperture regulator of an adaptive wind shielding device for improving wind resistance of a bridge provided in a second embodiment of the present invention;

[0030] Fig.11 A schematic diagram of the three-dimensional structure of a magnesium alloy frame of an adaptive pore regulator of an adaptive wind shielding device for improving wind resistance of a bridge provided in a second embodiment of the present invention;

[0031] Fig.12 A schematic diagram of a top view of the structure of an adaptive pore regulator of an adaptive wind shielding device for improving wind resistance of a bridge provided in a third embodiment of the present invention;

[0032] Fig.13 A bottom-up structural schematic diagram of an adaptive aperture regulator of an adaptive wind shielding device for improving wind resistance of a bridge provided in a third embodiment of the present invention;

[0033] Fig.14 A schematic diagram of the three-dimensional structure of a magnesium alloy frame of an adaptive pore regulator of an adaptive wind shielding device for improving wind resistance of a bridge provided in a third embodiment of the present invention;

[0034] Fig.15 A schematic diagram of a top view of the structure of an adaptive pore regulator of an adaptive wind shielding device for improving wind resistance of a bridge provided in a fourth embodiment of the present invention;

[0035] Fig.16 A bottom-up structural schematic diagram of an adaptive aperture regulator of an adaptive wind shielding device for improving wind resistance of a bridge provided in a fourth embodiment of the present invention;

[0036] Fig.17 A schematic diagram of the three-dimensional structure of an adaptive pore regulator of an adaptive wind shielding device for improving the wind resistance of a bridge without blades provided in a fourth embodiment of the present invention;

[0037] Fig.18 A schematic diagram of the three-dimensional structure of the blades of the adaptive gap regulator of the adaptive wind shielding device for improving the wind resistance of the bridge provided in the fourth embodiment of the present invention.

[0038] in:

[0039] 1. Wind speed and direction detector; 2. Wind barrier column; 3. Wind barrier strip; 4. Blade; 5. Coupling; 6. Cylindrical pin; 7. Air inlet; 8. Wind barrier strip windward side; 9. Wind barrier strip leeward side; 10. Steel plate; 11. Bolt; 12. Magnesium alloy frame; 13. Rounded rectangular hole; 14. Hexagonal slide; 15. Center circular hole; 16. Connecting rod; 17. Rounded rectangular groove; 18. Rotor A; 19. Rotor B; 20. Rotor C; 21. Axle; 22. Rotating belt. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned herein, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0042] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] like Figures 1 to 3As shown, the adaptive wind shielding device for improving the wind resistance of a bridge provided by the first embodiment of the present invention is used to improve the wind resistance of a bridge, and is configured to include two vertically disposed wind barrier columns 2 arranged at intervals, a horizontally disposed wind barrier strip 3 is rotatably connected between the two wind barrier columns 2, there are multiple wind barrier strips 3, and they are arranged in sequence along the vertical direction, and the wind barrier strips 3 can change the air permeability between adjacent wind barrier strips 3 when rotating, and each wind barrier strip 3 is provided with a plurality of air inlets 7, and each air inlet 7 is inserted with an adaptive pore regulator, and the adaptive pore regulator is configured to be able to adjust the porosity of the wind barrier strip 3 and the shape of the air inlet 7 in real time according to different wind environments.

[0044] Specifically in this embodiment, the material of the wind barrier column 2 is H-shaped steel. Due to its unique cross-sectional shape, the H-shaped steel has good bearing capacity and stability, thereby ensuring the stability and safety of the entire device and preventing the wind barrier strips 3 from tilting or collapsing due to excessive wind force. For example, the number of wind barrier strips 3 is eight. Figure 1 As shown, eight wind barrier strips 3 are arranged in sequence along the extension direction of the wind barrier column 2, and the total height of the eight wind barrier strips 3 is consistent with the height of the wind barrier column 2. The wind barrier strips 3 rely on the adaptive pore regulator to change the size and shape of the air inlet 7 to achieve the wind resistance function, and each wind barrier strip 3 has its corresponding control system, which is independent of each other and does not affect each other; the wind barrier strip 3 has a wind barrier strip windward surface 8 and a wind barrier strip leeward surface 9; in order to facilitate the rotation connection between the wind barrier strip 3 and the wind barrier column 2, as shown in FIG. Figure 1 As shown, connecting pins are welded at the left and right ends and the middle of each wind barrier strip 3. The wind barrier strip 3 is connected to the wind barrier column 2 through the connecting pins and the coupling 5. The wind barrier column 2 is connected to the coupling 5 through a spring latch. The spring latch realizes a self-locking function through a latch pin rod structure and a rolling steel ball. The self-locking position can be set according to the change of the angle of the wind barrier strip 3 to ensure the stability of the wind barrier strip 3 during operation. A rotation sensor is arranged inside the coupling 5.

[0045] For example, six adaptive aperture regulators are provided on each wind barrier strip 3. Figure 1 As shown, the six adaptive aperture regulators on the same wind barrier strip 3 are arranged at equal intervals along the length direction of the wind barrier strip 3; during the manufacturing process of the wind barrier strip 3, the air inlet 7 is designed to be circular so as to flexibly cooperate with the adaptive aperture regulator; the number and layout of these wind barrier strips 3 and adaptive aperture regulators can be adjusted and optimized according to real-time factors such as wind force and wind direction changes in the actual application environment to ensure the best wind blocking effect; in order to facilitate real-time sensing of changes in the external wind environment, such as Figure 1As shown, a wind speed and direction detector 1 is arranged on the top of the wind barrier pole on the left side. The wind speed and direction detector 1 is configured to measure wind speed, wind direction and wind attack angle in real time, and can convert physical signals into electrical signals, and can transmit the electrical signals to the working recorder for processing, so as to transmit them to the control system, so as to change the rotation angle of the wind barrier strip 3, and can flexibly adjust the shape and porosity of the air inlet 7 on the transverse wind barrier strip 3 at different heights through the adaptive pore regulator, so as to achieve coordinated regulation of the shape, porosity and air permeability of the air inlet 7 between the transverse wind barrier strips 3, so that the air is diverted into multiple small flow channels, so that the wind from different directions is more sufficient and uniform when flowing through the wind barrier strip 3, and at the same time, the noise problem caused by excessive wind speed and air volume can be avoided; multiple airflows at different angles and heights interfere with each other, and a reduced wind speed zone is formed on the leeward side 9 of the wind barrier strip, which reduces the incoming wind speed and turbulence intensity, and can effectively reduce the wind effect and the risk of impact and damage during the operation of the train.

[0046] In some embodiments, Figure 2 As shown, during the installation process, the adaptive aperture regulator can be set to be welded to the steel plate 10 first, and then firmly connected to the wind barrier strip windward surface 8 of the wind barrier strip 3 by bolts 11.

[0047] In other embodiments, Figure 3 As shown, during the installation process, the adaptive pore regulator can also be set to design and process a suitable groove at the position of the air inlet 7 and on the windward side 8 of the wind barrier strip 3 during the prefabrication stage of the wind barrier strip 3. Then, according to needs, the adaptive pore regulator can be accurately fixed inside the groove by welding or bolts 11 to ensure the convenience of installation.

[0048] In other embodiments, the adaptive aperture regulator is configured to include a magnesium alloy frame 12, an adjusting portion and N blades 4, the magnesium alloy frame 12 is fixedly disposed on the wind barrier strip 3; the first end of the blade 4 is movably disposed on the magnesium alloy frame 12, and the second end is suspended, the N blades 4 are evenly arranged along the circumferential direction, and together form a centrally symmetrical opening and closing structure; the adjusting portion is configured to be able to drive the N blades 4 to move synchronously to change the opening and closing angle of the opening and closing structure; N is a natural number greater than or equal to two.

[0049] Specifically in this embodiment, the magnesium alloy frame 12 is configured as a ring structure, and a central circular hole 15 is formed in the middle of the magnesium alloy frame 12 , and the size of the central circular hole 15 is precisely matched with the air inlet 7 of the wind barrier strip 3 .

[0050] During use, under the adjustment of the adjustment part, N blades 4 can be opened and closed at a uniform speed and adjusted into ventilation holes of different sizes, so as to change the porosity; the adaptive pore regulator can change the shape of the ventilation holes to adapt to different wind resistance requirements by adjusting the number of blades 4 and optimizing the geometric shape of the blades 4.

[0051] In the first embodiment, if Figures 4 to 8 As shown, the adjustment portion is configured to include N rounded rectangular holes 13 and 2N cylindrical pins 6, and the N rounded rectangular holes 13 are evenly arranged along the circumferential direction; a regular N-sided polygonal slideway is provided on the magnesium alloy frame 12; the cylindrical pins 6 are grouped in pairs, and the two cylindrical pins 6 in the same group are respectively fixedly arranged on both sides of the first end of the same blade 4, and one of the cylindrical pins 6 is slidably inserted in the rounded rectangular hole 13, and the other cylindrical pin 6 is slidably inserted in the regular N-sided polygonal slideway.

[0052] Specifically in this embodiment, N can be set to six, such as Figure 7 As shown, a regular hexagonal slideway 14 is provided on the magnesium alloy frame 12, and the center of the regular hexagonal slideway 14 coincides with the center of the central circular hole 15; the number of blades 4 and the rounded rectangular hole 13 are both set to six, as shown in FIG. Figure 6 As shown, the rounded rectangular holes 13 are arranged obliquely, and the six rounded rectangular holes 13 are evenly arranged along the circumference, as shown in FIG. Figure 8 As shown, the blade 4 is configured as a pentagonal plate-like structure, such as Figure 5 As shown, the pentagonal shape of the blade 4 is configured to be composed of a right-angled trapezoid and an obtuse triangle, and the right-angled side of the right-angled trapezoid and the side corresponding to the obtuse angle of the obtuse triangle are equal in length and overlap; the number of cylindrical pins 6 is set to twelve, such as Figure 8 As shown, the two cylindrical pins 6 on the same blade 4 are respectively and vertically arranged on the upper and lower plate surfaces of the blade 4, and are both located in the plate surface area where the obtuse triangle is located, and one of the cylindrical pins 6 is slidably inserted in the rounded rectangular hole 13, and the other cylindrical pin 6 is slidably inserted in one of the sides of the regular hexagonal slide 14, so as to provide support and guidance for the movement of the blade 4, reduce friction and wear, and guide the movement trajectory of the blade 4 to ensure that the blade 4 moves accurately along the predetermined path.

[0053] During use, if Figure 5 As shown, the six blades 4 together form an air inlet 7 in the shape of a regular hexagon. When the six blades 4 are opened and closed synchronously, the shape of the regular hexagon remains unchanged, and the area increases or decreases accordingly, thereby achieving a change in the shape and porosity of the air inlet 7.

[0054] In the second embodiment, if Figures 9 to 11As shown, the adjustment part is configured to include N connecting rods 16, which are arranged one by one with the blades 4 and are evenly arranged along the circumferential direction. One end of the connecting rod 16 is hinged to the magnesium alloy frame 12, and the other end is hinged to the blade 4; the first end of the blade 4 is hinged to the magnesium alloy frame 12.

[0055] Specifically in this embodiment, N can be set to five, that is, the number of blades 4 and connecting rods 16 are both five. Fig.10 As shown, the blade 4 is configured as a crescent-shaped plate structure, the connecting rod 16 is tilted, and one end of the connecting rod 16 away from the axis of the magnesium alloy frame 12 is hinged on the magnesium alloy frame 12, and the end close to the axis of the magnesium alloy frame 12 is hinged between the first end and the second end of the blade 4.

[0056] During use, if Fig.10 As shown, the five blades 4 together form an air inlet 7 in the shape of a cyclone. When the five blades 4 open and close synchronously, the cyclone shape remains unchanged, and the area increases or decreases accordingly, thereby achieving a change in the shape and porosity of the air inlet 7.

[0057] In the third embodiment, if Figure 12 to Figure 14 As shown, the adjustment portion is configured to include N rounded rectangular grooves 17 and 2N cylindrical pins 6, and the N rounded rectangular grooves 17 are evenly arranged along the circumferential direction; the cylindrical pins 6 are grouped in pairs, and the two cylindrical pins 6 in the same group are corresponding to the same blade 4. The first end of the blade 4 is hinged to the magnesium alloy frame 12 through one of the cylindrical pins 6, and the third end of the blade 4 is slidably inserted into the rounded rectangular groove 17 through another cylindrical pin 6.

[0058] Specifically in this embodiment, N can be set to five, that is, the number of blades 4 and rounded rectangular grooves 17 are both set to five, such as Fig.14 As shown, the rounded rectangular groove 17 is tilted, and the five rounded rectangular grooves 17 are evenly arranged along the circumferential direction. Fig.13 As shown, the blade 4 is configured as a sickle-shaped plate structure; the number of the cylindrical pins 6 is set to ten, and the two cylindrical pins 6 on the same blade 4 are respectively and vertically arranged on the upper and lower plate surfaces of the blade 4.

[0059] During use, if Fig.13 As shown, the five blades 4 together form an air inlet 7 in the shape of a cyclone. When the five blades 4 open and close synchronously, the cyclone shape remains unchanged, and the area increases or decreases accordingly, thereby achieving a change in the shape and porosity of the air inlet 7.

[0060] In the fourth embodiment, if Figures 15 to 18As shown, the adjustment part is configured to include a rotating wheel A18, two rotating wheels B19, N rotating wheels C20 and a rotating belt 22, wherein the rotating wheel A18 is rotatably arranged on the magnesium alloy frame 12; the N rotating wheels C20 are evenly arranged along the circumferential direction and are all capable of rotating; the blades 4 and the rotating wheels C20 are arranged one by one, and the first end of the blade 4 is fixedly sleeved on the rotating wheel C20; the rotating belt 22 is simultaneously transmission-sleeved on the outside of the rotating wheel A18 and the N rotating wheels C20; the two rotating wheels B19 are both rotatably arranged on the magnesium alloy frame 12, and are symmetrically arranged about the rotating wheel A18, and are transmission-connected to the outside of the rotating belt 22.

[0061] Specifically in this embodiment, N can be set to five, that is, the number of blades 4 and the number of wheels C20 are both five. Fig.18 As shown, the blade 4 is configured as a fan-shaped curved structure, such as Fig.16 As shown, five blades 4 are overlapped along the axial direction of the magnesium alloy frame 12; to facilitate the installation of the wheels A18, B19 and C20, eight axles 21 are vertically and fixedly arranged on the magnesium alloy frame 12, and the wheels A18, B19 and C20 are arranged to be sleeved on the axles 21 in a one-to-one correspondence during installation.

[0062] During use, if Fig.16 As shown, the five blades 4 together form an air inlet 7 in the shape of a regular pentagon. When the five blades 4 are opened and closed synchronously, the shape of the regular pentagon remains unchanged, and the area increases or decreases accordingly, thereby achieving a change in the shape and porosity of the air inlet 7.

[0063] In other embodiments, in order to provide a driving force for the synchronous opening and closing of N blades 4, a motor driver is arranged inside the magnesium alloy frame 12. By controlling the position of the cylindrical pin 6 inside the adaptive aperture regulator in the hexagonal slide 14 and the rounded rectangular hole 13, the rounded rectangular groove 17 or the degree of rotation of the connecting rod 16 or the wheel A18, the wheel B19, and the wheel C20, the opening and closing degree of the blade 4 is changed, thereby achieving the effect of changing the porosity and the shape of the air inlet 7; the motor driver transmits the action to the blade 4 through the cylindrical pin 6, the connecting rod 16 or the wheel A18, the wheel B19, and the wheel C20 to ensure that all blades 4 move in the same manner and speed.

[0064] In other embodiments, a blade 4 locking structure is inserted into the magnesium alloy frame 12 , and the blade 4 locking structure is used to lock the blade 4 when it moves to a desired position.

[0065] Specifically in this embodiment, the locking structure of the blade 4 can be set as any one of a buckle, a locking pin or a locking plate.

[0066] In other embodiments, the adaptive aperture regulator installed on the same wind barrier strip 3 may have different shapes of air inlet 7 to achieve precise adjustment and optimization of the air inlet 7 .

[0067] Specifically in this embodiment, taking a wind barrier strip 3 as an example, different adaptive gap regulators thereon can be set to adopt the regulating part in the first embodiment, the regulating part in the second embodiment, the regulating part in the third embodiment and the regulating part in the fourth embodiment.

[0068] The present invention also provides a control method for an adaptive wind shielding device for improving the wind resistance of a bridge, and is configured to include the following steps:

[0069] S1, measure wind speed, wind direction and wind attack angle, convert physical signals into electrical signals, and transmit them to the work recorder for processing;

[0070] S2. Based on the recorded data, the porosity of the wind barrier strips 3 in different wind zones, the shape of the air inlet 7 and the rotation angle are calculated through the built-in algorithm, and then the opening and closing angle of the opening and closing structure is changed to adjust the porosity and the shape of the air inlet 7; at the same time, the rotation angle of the wind barrier strips 3 is changed to adjust the air permeability.

[0071] Specifically in this embodiment, the wind speed and direction detector 1 arranged on the upper part of the wind barrier column 2 can measure the wind speed, wind direction and wind attack angle in real time, convert the physical signal into an electrical signal, and transmit it to the work recorder for processing.

[0072] More specifically, the motor driver built into the adaptive pore regulator controls the position of the internal cylindrical pin 6 of the adaptive pore regulator in the regular N-gon slide or the rounded rectangular groove 17, the rotation degree of the connecting rod 16 or the wheel A18, the wheel B19, and the wheel C20, and then changes the opening and closing degree of the blade 4, so as to realize the extension and retraction of the blade 4 and adjust the porosity. The motor driver built into the adaptive pore regulator and the rotation sensor built into the coupling 5 receive the data processed by the wind speed and direction detector, and calculate the porosity size, the shape of the air inlet 7 and the rotation angle of the wind barrier strip 3 in different wind zones through the built-in algorithm.

[0073] More specifically, facing the bridge deck environment under the action of 0° to 30° side wind, in order to achieve the best wind-blocking effect, the porosity of the wind barrier strips 3 can be reduced by an adaptive pore regulator, or the air permeability between the wind barrier strips 3 can be increased by changing the angle between the wind barrier strips 3 and the vertical plane, so as to effectively resist the invasion of side wind; facing the bridge deck environment under the action of 30° to 75° oblique wind, in order to achieve the optimal wind-blocking performance, the porosity of the wind barrier strips 3 can be increased by an adaptive pore regulator, or the air permeability between the wind barrier strips 3 can be reduced by changing the angle between the wind barrier strips 3 and the vertical plane, so as to balance the frontal impact and lateral penetration of the wind, and ensure the stability and safety of the bridge deck; facing the bridge deck environment under the action of 75° to 90° along the wind direction, that is, when the wind blows almost completely towards the bridge deck head-on, the direct relationship between the wind speed and the height and air permeability of the wind barrier strips 3 is no longer significant, and the porosity of the wind barrier strips 3 can be minimized by an adaptive pore regulator to maintain the aerodynamic stability and safety of the bridge deck.

[0074] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An adaptive windshield device for improving the wind resistance of a bridge, characterized in that: The adaptive wind-blocking device for improving the wind-resistance performance of a bridge comprises two vertically arranged wind barrier columns that are spaced apart, a horizontal wind barrier strip being rotatably connected between the two wind barrier columns, a plurality of wind barrier strips being provided and arranged in sequence along a vertical direction, the wind barrier strips being capable of changing the air permeability between adjacent wind barrier strips when rotating, a plurality of air inlets being provided on each of the wind barrier strips, an adaptive pore regulator being installed in each of the air inlets, the adaptive pore regulator being configured to be able to adjust the porosity of the wind barrier strips and the shape of the air inlets in real time according to different wind environments.

2. The adaptive windshield device for improving the wind resistance of a bridge according to claim 1, characterized in that: The adaptive aperture regulator includes a magnesium alloy frame, an adjustment part and N blades, wherein the magnesium alloy frame is fixedly arranged on the wind barrier strip; the first end of the blade is movably arranged on the magnesium alloy frame, and the second end is suspended, the N blades are evenly arranged along the circumference, and together form a centrally symmetrical opening and closing structure; the adjustment part is configured to be able to drive the N blades to move synchronously to change the opening and closing angle of the opening and closing structure; N is a natural number greater than or equal to two.

3. The adaptive windshield device for improving the wind resistance of a bridge according to claim 2, characterized in that: The adjustment portion includes N rounded rectangular holes and 2N cylindrical pins, and the N rounded rectangular holes are evenly arranged along the circumferential direction; the magnesium alloy frame is provided with a regular N-sided polygonal slideway; the cylindrical pins are grouped in pairs, and the two cylindrical pins in the same group are respectively fixed on both sides of the first end of the same blade, and one of the cylindrical pins is slidably inserted in the rounded rectangular hole, and the other cylindrical pin is slidably inserted in the regular N-sided polygonal slideway.

4. The adaptive windshield device for improving the wind resistance of a bridge according to claim 2, characterized in that: The adjusting part includes N connecting rods, which are arranged one by one with the blades and are evenly arranged along the circumferential direction. One end of the connecting rod is hinged to the magnesium alloy frame, and the other end is hinged to the blade; the first end of the blade is hinged to the magnesium alloy frame.

5. The adaptive windshield device for improving the wind resistance of a bridge according to claim 2, characterized in that: The adjusting portion includes N rounded rectangular grooves and 2N cylindrical pins, and the N rounded rectangular grooves are evenly arranged along the circumferential direction; the cylindrical pins are arranged in groups of two, and the two cylindrical pins in the same group are arranged corresponding to the same blade, and the first end of the blade is hinged to the magnesium alloy frame through one of the cylindrical pins, and the third end of the blade is slidably inserted into the rounded rectangular groove through another cylindrical pin.

6. The adaptive windshield device for improving the wind resistance of a bridge according to claim 2, characterized in that: The adjusting part includes a wheel A, two wheels B, N wheels C and a rotating belt, wherein the wheel A is rotatably arranged on the magnesium alloy frame; the N wheels C are evenly arranged along the circumferential direction and are all capable of self-rotation; the blades and the wheels C are arranged in a one-to-one correspondence, and the first ends of the blades are fixedly sleeved on the wheels C; the rotating belt is simultaneously transmission-sleeved on the outside of the wheel A and the N wheels C; the two wheels B are both rotatably arranged on the magnesium alloy frame, symmetrically arranged about the wheel A, and transmission-connected to the outside of the rotating belt.

7. The adaptive windshield device for improving the wind resistance of a bridge according to claim 2, characterized in that: A blade locking structure is inserted inside the magnesium alloy frame, and the blade locking structure is used to lock the blade when it moves to a desired position.

8. The adaptive windshield device for improving wind resistance of a bridge according to claim 7, characterized in that: The blade locking structure includes a buckle, a locking pin or a locking plate.

9. The adaptive windshield device for improving wind resistance of a bridge according to claim 1, characterized in that: The adaptive aperture regulators installed on the same wind barrier strip have different air inlet shapes.

10. A control method for an adaptive windshield device for improving the wind resistance of a bridge, characterized in that: The control method of the adaptive wind shielding device for improving the wind resistance of the bridge comprises the following steps: S1, measure wind speed, wind direction and wind attack angle, convert physical signals into electrical signals, and transmit them to the work recorder for processing; S2. Based on the recorded data, the porosity, air inlet shape and rotation angle of the wind barrier strips in different wind zones are calculated through the built-in algorithm, and then the opening and closing angle of the opening and closing structure is changed to adjust the porosity and air inlet shape; at the same time, the rotation angle of the wind barrier strips is changed to adjust the air permeability.

Images