Intelligent bridge wind barrier

Abstract

The present application relates to a kind of intelligent bridge windbreaks, the present application effectively solves the problem that existing bridge windbreak cannot ensure vehicle safe passage while achieving larger wind permeability;Solving technical solutions include: the windbreak can minimize the lateral load force suffered by bridge while ensuring the safe driving of vehicle on bridge deck as far as possible (by guiding wind speed to pass below vehicle chassis, thereby forming a negative pressure zone at the bottom of vehicle, so that vehicle is subjected to a greater downward pressure when driving), while it can also increase with wind speed, remind driver to slow down vehicle speed, to reduce the instability of vehicle when encountering lateral wind speed at high speed, to the greatest extent ensure driving safety in windy conditions.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge, especially to an intelligent bridge wind barrier. BACKGROUND

[0002] In the highway bridge wind resistance design specification, the wind speed when the vehicle passes through the bridge is required, when the wind speed of the bridge exceeds the required value, the traffic control is generally carried out on the bridge for the safety of the passing vehicle, thereby affecting the traffic efficiency of the bridge, in order to improve the traffic efficiency of the bridge in the strong wind, the wind barrier is usually arranged on both sides of the bridge;

[0003] When it is in the strong wind weather, a part of the airflow is blocked under the action of the wind barrier, and another part of the airflow passes through the wind barrier and enters the driving lane, since the airflow is dispersed, the hidden danger of the driving safety of the passing vehicle caused by the strong wind speed is reduced, but since the wind barrier blocks a part of the airflow, the load is applied to the main structure of the bridge, the windward area of the bridge is additionally increased, the great lateral load force is applied to the bridge, and the safety hidden danger of the bridge structure is brought;

[0004] In order to reduce the lateral load force applied to the bridge from the wind speed, the wind barrier is usually increased in the wind permeability, but the wind permeability is increased, and the great safety hidden danger is brought to the passing vehicle, the wind permeability of the wind barrier is reduced, the lateral load force applied to the main structure of the bridge is great, and the existing bridge wind barrier cannot reduce the lateral load force applied to the bridge (increase the wind permeability) as much as possible while ensuring the safe driving of the passing vehicle on the bridge;

[0005] In view of this, an intelligent bridge wind barrier is provided to solve the above problems. SUMMARY

[0006] The intelligent bridge wind barrier can reduce the lateral load force applied to the bridge as much as possible while ensuring the safe driving of the passing vehicle on the bridge, and can remind the driver to slow down the driving speed of the vehicle with the increase of the wind speed, so as to reduce the instability of the vehicle in the high-speed driving under the lateral wind speed.

[0007] An intelligent bridge wind barrier, comprising a mounting frame, characterized in that a wind shield is rotatably installed on the mounting frame, and an arc-shaped groove coaxial with the wind shield and rotatably installed in cooperation with the wind shield is arranged on one side of the mounting frame, a wind exhaust pipe is communicated with the bottom of the arc-shaped groove and extends to the bottom of the mounting frame, a liquid storage unit is coaxially arranged on the outer wall of the arc-shaped groove and is driven by the wind shield, a liquid storage cavity arranged in an S shape is arranged on the bridge in a direction perpendicular to the bridge, and a plurality of liquid storage cavities are arranged in the length direction of the bridge, the liquid storage cavity is communicated with the liquid storage unit, and an elastic deformation member is arranged on the upper end of the liquid storage cavity.

[0008] The air baffle is provided with a ventilation window, the ventilation window is provided with a blocking piece, the mounting frame is provided with a wind speed sensor, and the wind speed sensor is electrically connected with a microcontroller.

[0009] The above technical scheme has the following beneficial effects:

[0010] (1) In the scheme, the wind barrier can minimize the lateral load force on the bridge while ensuring the safe driving of vehicles on the bridge deck (by guiding the wind speed below the vehicle chassis, a negative pressure area is formed at the bottom of the vehicle, so that the vehicle receives a greater downward pressure when driving), and can also remind the driver to slow down the vehicle speed as the wind speed increases, to reduce the instability of the vehicle when encountering lateral wind speed at high speed, and to ensure the driving safety in strong wind conditions to the greatest extent;

[0011] (2) The scheme is provided with a storage cavity and an elastic deformation piece in the form of S shape on the bridge deck, which can slow down the airflow passing through the vehicle chassis when the wind speed is too large, thereby further reducing the lateral thrust on the vehicle when the high-speed airflow hits the vehicle wheels, so that the vehicle can drive more stably under strong wind conditions;

[0012] (3) In the scheme, the cooperation of the arc-shaped gas storage cavity and the first flexible body provides a relatively constant temperature environment for the magnetorheological fluid stored in the arc-shaped box (to reduce the irreversible thickening of the magnetorheological fluid due to high and low temperature cycles in areas with large diurnal temperature difference, which leads to the decline of magnetorheological effect), and when the vehicle loses control and hits the first flexible body (which is compressed), it provides a buffer for the vehicle, reducing the risk of vehicle rollover when the vehicle hits at high speed. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0014] Figure 2 It is a schematic diagram of the structure posture of the present application without wind force passing through the wind barrier;

[0015] Figure 3 It is a schematic diagram of the structure posture of the present application when different wind speed passes through the wind barrier;

[0016] Figure 4 It is a schematic diagram of the airflow direction posture when the wind speed is too large;

[0017] Figure 5 It is a schematic diagram of the cooperation of the arc-shaped groove, arc-shaped box, arc-shaped gas storage cavity and first flexible body.

[0018] Figure 6 This is a schematic diagram of the installation relationship of the air deflector, ventilation window, and blocking airbag of the present invention;

[0019] Figure 7 This is a schematic diagram of the installation relationship between the liquid storage chamber and the elastic deformation member of the present invention;

[0020] Figure 8 This is a schematic diagram of the state of the vehicle of the present invention when it collides with a wind barrier. DETAILED DESCRIPTION

[0021] The above and other technical contents, features and effects of the present invention are described below with reference to the attached Figures 1 to 8 It can be clearly presented in the detailed description of the embodiments that the structural contents mentioned in the following embodiments are all referenced to the drawings in the specification.

[0022] Example 1: This example provides an intelligent bridge wind barrier, as shown in the attached Figure 1 As shown, it includes a mounting frame 1, which is installed on both sides of the bridge and is symmetrically arranged ( Figure 1 Only a schematic diagram of the state where the mounting frame 1 is installed on the lane on one side of the bridge is shown in FIG. 1 , the improvements of this solution are as follows:

[0023] As attached Figure 5 As shown, a windshield 2 is rotatably mounted on the mounting frame 1, and an arc-shaped groove 3 is integrally mounted on the side of the mounting frame 1 facing the bridge deck, which is coaxial with the windshield 2 and is rotatably mounted with the windshield 2. Figure 2 As shown, an exhaust pipe 4 connected to the arc groove 3 is installed at the bottom of the arc groove 3 (i.e., the position of the arc groove 3 close to the mounting frame 1), and the end of the exhaust pipe 4 extends to the end surface position on the bridge deck (when the wind enters the exhaust pipe 4 through the arc groove 3 and finally flows out from the end of the exhaust pipe 4, the air flow will flow along the area close to the bridge deck). A liquid storage unit is coaxially installed on the outer wall of the arc groove 3 and the liquid storage unit is driven by the windshield 2, as shown in the attached figure. Figure 1 As shown, a liquid storage cavity 5 arranged in an S shape is provided on the bridge deck (arranged in a direction perpendicular to the length of the bridge) and an elastic deformation member 6 is provided at the upper end of the liquid storage cavity 5 (the elastic deformation member 6 cooperates with the liquid outlet cavity to form a sealed cavity. The elastic deformation member 6 can be an elastic airbag and is bonded to the upper end surface of the liquid storage cavity 5 by high-strength glue, as shown in the attached figure). Figure 7), a plurality of liquid storage cavities 5 are arranged at intervals along the direction in which the length of the bridge extends. Note: a plurality of liquid storage cavities 5 arranged in an S shape and extending perpendicularly to the length of the bridge are only distributed in the lane area on one side of the bridge (i.e., the lane with the same vehicle travel direction). The liquid storage cavities 5 in the above-mentioned area are connected to the liquid storage units on the mounting frame 1 on one side of the bridge, and a plurality of liquid storage cavities 5 arranged in an S shape are also arranged in the lane area on the other side of the bridge. The liquid storage cavities 5 in this area are connected to the liquid storage units installed on the mounting frame 1 on the other side of the bridge, that is, the liquid storage units installed on the mounting frames 1 on both sides of the bridge are respectively connected to the liquid storage cavities 5 located on different lanes (opposite lanes) on the bridge deck;

[0024] As attached Figure 5 As shown, a ventilation window 7 is provided on the windshield 2 and a blocking member is provided inside the ventilation window 7. A wind speed sensor is provided on the mounting frame 1 and the wind speed sensor is electrically connected to a microcontroller. The microcontroller controls the action (opening or closing) of the blocking member. When the blocking member is opened, the ventilation window 7 is in a conducting state, and vice versa, the ventilation window is in a non-conducting state. In the specific implementation of this embodiment, the process is as follows:

[0025] When the environment is in a windless state, the positional relationship between the windshield 2 and the mounting bracket 1 is as shown in the attached figure. Figure 2 As shown in FIG, and at this time, the blocking member installed on the windshield 2 is in a state of blocking the ventilation window 7, when the ambient wind speed increases, the airflow will directly hit the windshield 2 and force the windshield 2 to rotate relative to the mounting frame 1 under the action of the wind force, as shown in FIG. Figure 2 As shown, that is, the windshield 2 is rotated in the counterclockwise direction in the figure under the action of the airflow (so that it is affected by the surrounding Figure 3 Under the action of the airflow in the arc groove, it rotates along the set direction). Assuming that the wind speed at this time is only large enough to push the wind deflector 2 to rotate slightly along the arc groove 3, but it is still not enough to guide the airflow into the exhaust pipe 4 connected to the arc groove 3. In this case, the airflow will not enter the bridge deck and affect the normal driving of vehicles on the bridge.

[0026] When the wind speed continues to increase and the angle of rotation of the windshield 2 relative to the arc groove 3 increases to a certain extent (as shown in the attached figure), Figure 3The position shown in the upper middle side view) is formed so that the airflow that hits the windshield 2 and enters the arc groove 3 is guided into the exhaust pipe 4. Finally, under the guidance of the exhaust pipe 4, the high-speed airflow is discharged outward from the end of the exhaust pipe 4 and flows along the area close to the bridge deck. When a vehicle passes by, the high-speed airflow will pass through the bottom of the vehicle chassis (the area close to the bridge deck), and the high-speed airflow will form a negative pressure area in the area below the vehicle chassis, so that the vehicle is subjected to a downward pressure from top to bottom under the action of the air pressure difference (increasing the force between the vehicle and the bridge deck, thereby increasing the vehicle's passing The friction between the wheels and the bridge deck during the process is reduced, which helps ensure the vehicle's driving stability in strong winds. Moreover, because the high-speed airflow basically passes through the area below the vehicle chassis and does not act on the side of the vehicle body, the lateral load force from the wind on the vehicle in strong winds is relatively small. Although the high-speed airflow will partially act on the vehicle's wheels when it is discharged from the end of the exhaust pipe 4 and passes through the area below the vehicle chassis, the frontal area of ​​the wheels is much smaller than the frontal area of ​​the vehicle's side. Therefore, the impact of the wind force acting on the vehicle's wheels on the vehicle's driving is limited (negligible).

[0027] As the wind speed continues to increase (until it reaches a set value, that is, when the wind speed exceeds this value, it will affect the safe passage of vehicles), the rotation angle of the windshield 2 relative to the arc groove 3 is further increased under the action of the wind force, until the rotation angle of the windshield 2 relative to the arc groove 3 reaches the limit value (set value, that is, as shown in the attached figure). Figure 3 At this time, the windshield 2 cannot continue to rotate relative to the arc-shaped slot 3. At this time, the wind speed sensor detects that the wind speed has reached the set value, and then the microcontroller controls the blocking member on the windshield 2 to move (open), as shown in the attached figure. Figure 4 As shown, with the opening of the blocking member provided on the windshield 2 (making the ventilation window 7 in the conducting state), the high-speed airflow passes directly through the conducting ventilation window 7 and flows obliquely upward along the direction indicated by the arrow in the figure under the guidance of the arc-shaped groove 3, thereby guiding the airflow passing through the windshield 2 in an oblique upward direction, thereby preventing the airflow from colliding with the windshield 2 installed on the mounting frame 1 on the other side of the bridge when passing through the bridge deck (which will apply a certain degree of lateral load force on the bridge). Since the airflow flows in an oblique upward direction when passing through the windshield 2 on one side of the bridge, it will not collide with the windshield 2 on the other side of the bridge when passing through the bridge deck, thereby not applying additional lateral load force to the bridge. Note: At this time, since the ventilation window 7 is in the conducting state, the wind force on the windshield 2 will be reduced, and therefore the rotation angle of the windshield 2 relative to the arc-shaped groove 3 will be reduced (that is, when the blocking member is opened, the windshield 2 rotates a certain angle toward the initial position);

[0028] The above process is carried out synchronously: as the windshield 2 rotates relative to the arc groove 3 under the action of wind force, the liquid storage unit is driven to work synchronously during the rotation of the windshield 2 relative to the arc groove 3 (initially when the windshield 2 is in the position as shown in the attached figure) Figure 2 When the position is shown in the figure, the elastic deformable members 6 installed on the plurality of liquid storage chambers 5 in the bridge deck are at the same height as the bridge deck (at this time, a certain amount of liquid is stored in the liquid storage chamber 5 and the plurality of liquid storage chambers 5 are connected to the corresponding liquid storage units), that is, they are flush with the bridge deck and do not hinder the normal passage of vehicles. As the windshield 2 rotates, the liquid storage units are driven to work synchronously, that is, the liquid originally in the liquid storage units is transported to the plurality of liquid storage chambers 5 connected thereto, thereby increasing the amount of liquid stored in the liquid storage chambers 5 and forcing the elastic deformable members 6 to expand upward (as shown in the figure). Figure 3 As shown in the upper middle side view, at this time, since the wind speed is still a certain distance away from the set value, the elastic deformation member 6 expands upward to a small extent), and a number of elastic deformation members 6 arranged in an S shape expand upward, so that the originally flat bridge surface becomes a bulge at intervals (as shown in the attached figure). Figure 1 As shown in FIG5 , when a vehicle passes over the bridge, the wheels press on the expanded elastic deformable member 6, causing bumps, which in turn causes the driver to slow down (the bumps can cause discomfort to the driver, forcing him to slow down). In a windy environment, reducing the vehicle's speed is beneficial to improving the vehicle's driving stability when passing the bridge.

[0029] As the wind speed gradually increases, the rotation angle of the windshield 2 relative to the arc-shaped slot 3 further increases until it reaches the set value (cannot rotate further). At this time, the liquid in the liquid storage unit is driven by the windshield 2 to be transported to the liquid storage chamber 5 connected thereto to the maximum extent, and the upward expansion degree of the plurality of elastic deformation members 6 also reaches the maximum extent (as shown in the attached figure). Figure 3 (As shown in the lower middle side view), when the vehicle is driving on the bridge deck, the degree of bumpiness generated is further aggravated, thus further forcing the driver to slow down;

[0030] At the same time, a channel is formed between the two elastic deformation members 6 (arranged in an S shape) that expand upward and are arranged adjacent to each other. Figure 1 As shown, when the high-speed airflow is discharged outward from the end of the exhaust pipe 4, the high-speed airflow flows at high speed between the channels formed by the two adjacent elastic deformable members 6. Since the elastic deformable members 6 are arranged in an S-shape (making the channel curved), when the high-speed airflow flows between the two adjacent elastic deformable members 6, part of the airflow will collide with the elastic deformable members 6 arranged in the S-shape (causing kinetic energy loss), thereby achieving the flow rate of part of the airflow, further reducing the flow rate of the airflow between the two adjacent elastic deformable members 6, reducing the force acting on the wheels, and further improving the driving stability of the vehicle in a windy environment.

[0031] Note: When the air flow passes through the channel formed by the two adjacent elastic deformation members 6, more and more air flow collides with the elastic deformation members 6 as the air flow moves, so that the flow rate of the air flow gradually decreases, and when the air flow moves to the position close to the other side of the bridge, the air flow rate has been greatly reduced (the kinetic energy of the air flow is greatly attenuated), and a greater load force will not be generated on the mounting frame 1 installed on the other side of the bridge.

[0032] Example 2, on the basis of example 1, as shown in the accompanying Figure 4 , the liquid storage unit includes an arc-shaped box 8 arranged on the outer wall of the arc-shaped groove 3 and coaxially arranged with the arc-shaped groove 3. A valve plate 9 is arranged in the arc-shaped box 8, and the valve plate 9 is connected to the arc-shaped box 8 by a transmission rod 10 (the transmission rod 10 is also arranged in an arc shape and coaxially arranged with the rotating shaft of the wind shield 2) and connected to the wind shield 2 after the transmission rod 10 extends out of the arc-shaped box 8. A spring (not shown in the figure) is arranged between the valve plate 9 and the top wall of the arc-shaped box 8. The liquid is stored in the arc-shaped box 8 above the valve plate 9, as shown in the accompanying Figure 5 , a liquid delivery pipe 27 (one on each side) is arranged at the upper end position of the arc-shaped box 8 and communicates with the arc-shaped box 8, and the liquid delivery pipe 27 and the liquid storage cavity 5 corresponding to the arc-shaped box 8 are communicated by a hose (not shown in the figure). When the wind force acts on the wind shield 2 in the direction shown by the arrow in the accompanying Figure 3 , and forces the wind shield 2 to rotate relative to the arc-shaped groove 3, the valve plate 9 is driven by the transmission rod 10 to move in the arc-shaped box 8 towards the compression spring, so that the liquid stored in the arc-shaped box 8 is delivered to the liquid storage cavity 5 connected thereto through the liquid delivery pipe 27, and as the wind force increases, the wind shield 2 drives the valve plate 9 to move in the arc-shaped box 8 to a greater distance, so that more liquid is delivered to the liquid storage cavity 5 (so that the elastic deformation member 6 expands to a greater extent);

[0033] As shown in the lower side view of the accompanying Figure 3 , a stop block 14 is arranged at the corresponding position in the arc-shaped box 8, and when the valve plate 9 moves in the arc-shaped box 8 to the position abutting against the stop block 14, the valve plate 9 cannot continue to move (at this time, the valve plate 9 moves to the maximum extent in the arc-shaped box 8, and the wind shield 2 also rotates to the maximum angle under the action of the wind force), indicating that the wind speed reaches the set value at this time (at this time, traffic control needs to be implemented on the bridge to limit vehicles to cross the bridge).

[0034] Example 3, on the basis of example 2, as shown in the accompanying Figure 2As shown, a number of blades 11 are spaced apart in the exhaust duct 4 along the length of the bridge, and the blades 11 drive a rectangular conductive frame 12 (the rectangular conductive frame 12 and the shaft of the blade 11 are insulated), and the rectangular conductive frame 12 is connected to an electrical circuit via a conductive slip ring 29. Two magnets 13 are installed in the exhaust duct 4 at intervals, and the rectangular conductive frame 12 can rotate between the two magnets 13 (a closed magnetic field is formed between the two magnets 13). As shown in the attached figure, Figure 2 As shown in the partially enlarged view, the ends of the rectangular conductive frame 12 away from the fan blades 11 are electrically connected to the arc-shaped conductive plates, and the conductive slip ring 29 is provided with a conductive groove rotatably mounted with the arc-shaped conductive plates (the two conductive grooves are electrically connected to the external electrical circuit), so that the rectangular conductive frame 12, the arc-shaped conductive plates, and the conductive slip ring 29 are electrically connected to each other. The specific operation of this embodiment is as follows:

[0035] When the high-speed airflow is guided to the exhaust pipe 4 and flows through the fan blades 11, it will drive the fan blades 11 to rotate at high speed and synchronously drive the rectangular conductive frame 12 to rotate rapidly between the two magnets 13. As the rectangular conductive frame 12 rotates rapidly between the two magnets 13 (cutting the magnetic flux lines), similar to the principle of wind power generation (which is a prior art and will not be described in detail here), an induced current is generated and the generated induced current is conducted to the external electrical circuit through the conductive slip ring 29, as shown in the attached figure. Figure 7 As shown, an electromagnet 28 is provided on the bottom wall of the liquid storage chamber 5 (the liquid storage chamber 5 is made of composite plastic and has good insulation, corrosion resistance, high hardness and other characteristics). The electromagnet 28 is electrically connected to the above-mentioned electrical circuit (the electromagnet 28 is provided on the bottom wall of the liquid storage chamber 5 and is also arranged in an S shape). When the airflow flows through the fan blades 11 and drives the fan blades 11 to rotate at a certain speed, a certain intensity of current is generated in the above-mentioned electrical circuit and the electromagnet 28 is energized (generating a certain intensity of magnetic field). The generated magnetic field covers the liquid in the liquid storage chamber 5 (in this embodiment, the liquid stored in the liquid storage chamber 5 is a magnetorheological fluid). The magnetorheological fluid exhibits low viscosity fluid characteristics when there is no external magnetic field. When a certain degree of magnetic field is applied externally, it changes to a state of high viscosity, low fluidity and a certain hardness (the magnetorheological fluid at this time is equivalent to a "semi-solid" form). When the external magnetic field is removed, it can quickly change to the initial state, and the response speed is extremely fast (millisecond level);

[0036] When a magnetic field passes through the magnetorheological fluid in the liquid storage chamber 5, the viscosity of the magnetorheological fluid stored in the liquid storage chamber 5 increases (i.e., the fluidity decreases), and as the magnetic field strength increases (the wind speed increases, the fan blade 11 rotates faster, and the induced current generated is larger), the viscosity gradually increases. When a vehicle is driving and pressing on the expanded elastic deformable member 6, since the viscosity of the magnetorheological fluid is larger (the fluidity is lower), the vehicle will produce a more obvious bump and vibration (when the wheel presses on the elastic deformable member 6, the magnetorheological fluid in the liquid storage chamber 5 below the wheel is affected). The wheel pressure will flow in the sealed cavity composed of the liquid storage cavity 5 and the elastic deformable member 6 in the direction away from the wheel). Since the viscosity of the magnetorheological fluid is relatively high at this time, its flow in the sealed cavity becomes more difficult (that is, its fluidity is greatly reduced when it is crushed by the wheel). Therefore, when the vehicle wheel crushes the upward-expanding elastic deformable member 6, the elastic deformable member 6 will not sink downward to a large extent due to the crushing of the wheel in a short period of time (that is, it will still be a certain distance above the bridge deck), forcing the vehicle to produce a large degree of bumps during driving (thereby reminding the driver to reduce the driving speed).

[0037] Example 4, based on Example 1, as shown in the attached Figure 5 As shown, the blocking member includes a blocking airbag 15 provided in the ventilation window 7 and the blocking airbag 15 is fixed to the side walls of the ventilation window 7 along the length of the bridge. Abutment rods 16 elastically connected to the windshield 2 are slidably installed in the windshield 2 on the upper and lower sides of the blocking airbag 15 (as shown in the attached figure). Figure 6 As shown in FIG, a spring is connected between the abutting rod 16 and the windshield 2, and the abutting rod 16 is fixedly connected to the side of the blocking airbag 15 facing the windshield 2. In this solution, four ventilation windows 7 are provided as an example for explanation, that is, each windshield 2 is provided with four blocking airbags 15, and the four blocking airbags 15 are connected to a control tube 17, and the control tube 17 is provided with an electromagnetic valve 18 electrically connected to the microcontroller. Initially, when the environment is in a windless state, a large amount of gas is filled in the four blocking airbags 15 and the four blocking airbags 15 are in an expanded state. The upper and lower sides of the inflated blocking airbags 15 respectively abut against the upper and lower walls of the ventilation window 7 (as shown in FIG). Figure 6 As shown in the lower middle side view, the spring connected to the abutment rod 16 is in a compressed state at this time) and the ventilation window 7 is blocked (the two sides of the blocking airbag 15 are respectively fixed to the side walls of the ventilation window 7 by high-strength glue);

[0038] At the beginning, the ventilation window 7 is in a non-conducting state under the action of several blocking air bags 15, and when the wind acts on the wind shield 2, it will force the wind shield 2 to rotate, and as the wind speed increases, when the wind speed increases to a set value, the microcontroller controls the electromagnetic valve 18 to open and makes the control pipe 17 in a conducting state, at this time the gas stored in the blocking air bag 15 is quickly discharged outward through the control pipe 17, and the inflated blocking air bag 15 gradually begins to shrink, so that the blocking air bag 15 is connected with the abutment rod 16, and the abutment rod 16 is connected with the abutment rod 16. The spring is released, at this time the ventilation window 7 is no longer blocked by the blocking air bag 15 and is in an open state, as shown in the figure, at this time the airflow passes through the ventilation window 7 and flows in the direction indicated by the arrow in the figure (at this time the wind barrier has the maximum air permeability), and at the same time the bridge begins to limit the passage of vehicles; Figure 6 As shown in the figure, the abutment rod 16 is connected with the abutment rod 16, and the abutment rod 16 is connected with the abutment rod 16. The spring is released, at this time the ventilation window 7 is no longer blocked by the blocking air bag 15 and is in an open state, as shown in the figure, at this time the airflow passes through the ventilation window 7 and flows in the direction indicated by the arrow in the figure (at this time the wind barrier has the maximum air permeability), and at the same time the bridge begins to limit the passage of vehicles; Figure 4 As shown in the figure, the abutment rod 16 is connected with the abutment rod 16, and the abutment rod 16 is connected with the abutment rod 16. The spring is released, at this time the ventilation window 7 is no longer blocked by the blocking air bag 15 and is in an open state, as shown in the figure, at this time the airflow passes through the ventilation window 7 and flows in the direction indicated by the arrow in the figure (at this time the wind barrier has the maximum air permeability), and at the same time the bridge begins to limit the passage of vehicles;

[0039] Note: The ventilation window 7 is arranged in a shape that is wider in the middle and narrower at both ends, because when the blocking air bag 15 inflates and expands, the middle part expands more than the two end parts (the two end parts of the blocking air bag 15 are fixedly connected with the two end side walls of the ventilation window 7, and when they inflate and expand, the expansion degree near the two end parts is smaller than that of the middle part).

[0040] As shown in the figure, the abutment rod 16 is connected with the abutment rod 16, and the abutment rod 16 is connected with the abutment rod 16. The spring is released, at this time the ventilation window 7 is no longer blocked by the blocking air bag 15 and is in an open state, as shown in the figure, at this time the airflow passes through the ventilation window 7 and flows in the direction indicated by the arrow in the figure (at this time the wind barrier has the maximum air permeability), and at the same time the bridge begins to limit the passage of vehicles; Figure 4 As shown in the figure, the abutment rod 16 is connected with the abutment rod 16, and the abutment rod 16 is connected with the abutment rod 16. The spring is released, at this time the ventilation window 7 is no longer blocked by the blocking air bag 15 and is in an open state, as shown in the figure, at this time the airflow passes through the ventilation window 7 and flows in the direction indicated by the arrow in the figure (at this time the wind barrier has the maximum air permeability), and at the same time the bridge begins to limit the passage of vehicles; Figure 2 As shown in the figure, the abutment rod 16 is connected with the abutment rod 16, and the abutment rod 16 is connected with the abutment rod 16. The spring is released, at this time the ventilation window 7 is no longer blocked by the blocking air bag 15 and is in an open state, as shown in the figure, at this time the airflow passes through the ventilation window 7 and flows in the direction indicated by the arrow in the figure (at this time the wind barrier has the maximum air permeability), and at the same time the bridge begins to limit the passage of vehicles; Figure 1 As shown in the figure, the abutment rod 16 is connected with the abutment rod 16, and the abutment rod 16 is connected with the abutment rod 16. The spring is released, at this time the ventilation window 7 is no longer blocked by the blocking air bag 15 and is in an open state, as shown in the figure, at this time the airflow passes through the ventilation window 7 and flows in the direction indicated by the arrow in the figure (at this time the wind barrier has the maximum air permeability), and at the same time the bridge begins to limit the passage of vehicles; Figure 4 As shown in the figure, the abutment rod 16 is connected with the abutment rod 16, and the abutment rod 16 is connected with the abutment rod 16. The spring is released, at this time the ventilation window 7 is no longer blocked by the blocking air bag 15 and is in an open state, as shown in the figure, at this time the airflow passes through the ventilation window 7 and flows in the direction indicated by the arrow in the figure (at this time the wind barrier has the maximum air permeability), and at the same time the bridge begins to limit the passage of vehicles; Figure 2 As shown in the figure, the abutment rod 16 is connected with the abutment rod 16, and the abutment rod 16 is connected with the abutment rod 16. The spring is released, at this time the ventilation window 7 is no longer blocked by the blocking air bag 15 and is in an open state, as shown in the figure, at this time the airflow passes through the ventilation window 7 and flows in the direction indicated by the arrow in the figure (at this time the wind barrier has the maximum air permeability), and at the same time the bridge begins to limit the passage of vehicles;

[0041] Note: The first flexible body 20, the second flexible body 21 and the third flexible body 22 are all made of flexible and non-deformable material (i.e. without elastic deformation characteristics, only bulging with the filling of gas and showing its original contour shape);

[0042] As shown in the accompanying Figure 2 When the environment is in the windless condition, the first flexible body 20, the second flexible body 21 and the third flexible body 22 are all in the bulging state (the first flexible body 20, the second flexible body 21, the third flexible body 22 and the arc-shaped gas storage cavity 19 store air), when the valve plate 9 is driven by the wind deflector 2 to move in the arc-shaped box 8, it synchronously realizes the air stored in the arc-shaped gas storage cavity 19 to be sucked into the arc-shaped box 8 (to cooperate with the movement of the valve plate 9 in the arc-shaped box 8), as the distance of the valve plate 9 movement increases, the amount of air sucked into the arc-shaped box 8 is greater, as shown in the accompanying Figure 3 side view, so that the first flexible body 20, the second flexible body 21 and the third flexible body 22 produce different degrees of deflation, so that when the valve plate 9 moves to the limit position, the deflation degree of the first flexible body 20, the second flexible body 21 and the third flexible body 22 is the largest (as shown in the accompanying Figure 3 lower side view), that is, most of the air is sucked into the arc-shaped box 8, so as to realize the movement of the valve plate 9 in the arc-shaped box 8 (and then deliver the liquid into the liquid storage cavity 5);

[0043] As shown in the accompanying Figure 2 When in the windless environment, since the first flexible body 20, the second flexible body 21 and the third flexible body 22 are all filled with a certain amount of air and realize the covering of most of the surface of the arc-shaped box 8, since the gas is a poor conductor of heat, it can provide a relatively constant temperature environment for the magnetorheological fluid in the arc-shaped box 8, in the area with large diurnal temperature difference, it can better avoid the large fluctuation of the ambient temperature of the magnetorheological fluid in the arc-shaped box 8, because the magnetorheological fluid is relatively sensitive to temperature change, the magnetorheological fluid is generally composed of ferromagnetic particles uniformly dispersed in the carrier liquid and additives to form a suspension liquid, since the carrier liquid and additives are mostly organic matter, the use temperature is limited, and the additive is relatively sensitive to temperature, when it is subjected to repeated high and low temperature cycles, it will cause the magnetorheological fluid to produce irreversible thickening (cause the magnetorheological effect to decrease), thereby affecting the flowability of the magnetorheological fluid in the arc-shaped box 8 (irreversible thickening, causing the flowability of the magnetorheological fluid in the arc-shaped box 8 to be greatly reduced, thereby increasing the difficulty of the wind deflector 2 to rotate under the action of wind force, unable to realize the timely guiding and dispersing of the air flow);

[0044] In the present scheme, by providing the first flexible body 20, the second flexible body 21 and the third flexible body 22 filled with gas on the upper and lower walls of the arc-shaped box 8 and the outer lateral wall, a better heat insulation buffer zone is formed outside the arc-shaped box 8, so that the environment of the MR fluid stored in the arc-shaped box 8 fluctuates within a certain range (small) as much as possible, and the decrease of the MR effect of the MR fluid caused by high and low temperature cycles is reduced to the greatest extent. In addition, a heat insulation film is provided on the contact part between the arc-shaped groove 3 and the arc-shaped box 8, and the wall of the liquid delivery pipe 27 and the liquid storage cavity 5, so as to reduce the temperature fluctuation of the environment of the MR fluid stored therein to the greatest extent.

[0045] When the wind speed increases to a set value (at this time, the vehicle is limited to pass), that is, the valve plate 9 moves to the position of abutting against the stopper 14, the microcontroller controls the electromagnetic valve 18 to open and makes the control pipe 17 in the conducting state. At this time, the gas in the blocking air bag 15 flows into the arc-shaped gas storage cavity 19 through the control pipe 17 and makes the first flexible body 20, the second flexible body 21 and the third flexible body 22 inflated again. As shown in the attached Figure 4 At this time, the blocking air bag 15 is no longer in contact with the upper and lower walls of the ventilation window 7 (the ventilation window 7 is in the conducting state), and the gas in the blocking air bag 15 enters the first flexible body 20, the second flexible body 21 and the third flexible body 22. Since the ventilation window 7 is in the conducting state at this time, the force acting on the wind deflector 2 from the airflow is greatly reduced. Therefore, under the action of the spring connected with the valve plate 9, the valve plate 9 moves in the arc-shaped box 8 towards the initial position and stops at a certain position (at this time, the force of the gas acting on the wind deflector 2 in the area other than the ventilation window 7 is balanced with the force of the spring acting on the valve plate 9). In the subsequent process, if the wind speed decreases (monitored by the wind speed sensor) and decreases to a set value (or a certain value lower than the set value), at this time, the traffic is allowed. Under the action of the microcontroller, the gas originally discharged from the blocking air bag 15 is filled into the blocking air bag 15 again (as shown in the attached Figure 5 As shown in the attached Figure 6When the vehicle is running on the bridge, the micro-pump stops working and the electromagnetic valve 18 is controlled to close synchronously, at this time the air vent 7 on the baffle 2 is in the non-conducting state again, and the air flow is guided into the exhaust duct 4 through the exhaust port 24 under the action of the baffle 2 (to realize the flow of air close to the bridge), so as to realize the stability during the running of the vehicle;

[0046] Note: When the wind speed exceeds the set value and starts to decrease (but is still higher than the set value), at this time the microcontroller controls the micro-pump to stop working, and due to the reduction of the force on the baffle 2 from the air flow, the valve plate 9 continues to move towards the initial position under the action of the spring connected thereto. Since the first flexible body 20, the second flexible body 21 and the third flexible body 22 cannot be elastically deformed, when they are filled with gas, as the valve plate 9 continues to move towards the initial position, part of the gas filled in the first flexible body 20, the second flexible body 21 and the third flexible body 22 will be pressed into the blocking air bag 15 (so that the blocking air bag 15 expands to a certain extent), until the wind speed decreases to the set value (or a certain value lower than the set value), the microcontroller controls the micro-pump to start and the gas originally in the blocking air bag 15 is extracted into the blocking air bag 15 again (so that the blocking air bag 15 returns to the initial state as shown in the middle lower side view); Figure 6

[0047] Note: Limiting blocks (not shown in the figure) for limiting the rotation angle of the baffle 2 can be installed on the mounting frame 1, so that when the baffle 2 rotates to the initial position again (i.e., the position shown in the middle of the figure), the rotation in the direction away from the arc-shaped groove 3 is limited by the limiting blocks (so that the baffle 2 can only rotate in the direction close to the arc-shaped groove 3); Figure 2

[0048] In this scheme, the cooperation of the first flexible body 20 and the arc-shaped gas storage cavity 19 can also realize a certain degree of buffering effect on the vehicle when the vehicle collides with the wind barrier due to loss of control during running on the bridge, as shown in the middle of the figure Figure 8 ​​As shown, when the vehicle collides with the first flexible body 20, the first flexible body 20 is impacted by the vehicle to produce a concave and press the gas inside through the communication pipe 26 into the space in the arc-shaped box 8 which does not store liquid, at the same time, the first flexible body 20 produces a certain degree of deflation, in the above process, a certain buffer to the vehicle collision is achieved (i.e. the vehicle continues to move a certain distance in the direction of impact, providing a certain buffer space for the vehicle to continue to move forward, so as to prevent the vehicle from rolling over due to receiving a larger resistance when the vehicle collides at high speed), as part of the gas is pressed into the arc-shaped box 8 and further forces the valve plate 9 to move in the arc-shaped box 8, so that the liquid stored in the arc-shaped box 8 is transported to the liquid storage cavity 5 connected thereto through the liquid delivery pipe 27, and further makes the elastic deformation piece 6 expand (protrude from the bridge), so that the vehicle advances a certain resistance (thereby weakening the part of the impact kinetic energy of the vehicle).

[0049] In Example 6, on the basis of Example 2, as shown in the accompanying drawings Figure 2 As shown, the wind deflector 2 is integrally provided with an arc-shaped plate 23 on the side facing the arc-shaped groove 3, which is in rotational contact with the arc-shaped groove 3, and the arc-shaped plate 23 is fixedly connected between the transmission rod 10, and the exhaust port 24 is provided at the bottom of the arc-shaped groove 3, and the exhaust pipe 4 is connected with the arc-shaped groove 3 through the exhaust port 24, initially when the wind deflector 2 is in the position as shown in the accompanying drawings Figure 2 As shown, the wind deflector 2 is integrally provided with an arc-shaped plate 23 on the side facing the arc-shaped groove 3, which is in rotational contact with the arc-shaped groove 3, and the arc-shaped plate 23 is fixedly connected between the transmission rod 10, and the exhaust port 24 is provided at the bottom of the arc-shaped groove 3, and the exhaust pipe 4 is connected with the arc-shaped groove 3 through the exhaust port 24, initially when the wind deflector 2 is in the position as shown in the accompanying drawings

[0050] As shown in the accompanying drawings Figure 3As shown in the upper middle side view, the arrangement of the curved plate 23 is to block the exhaust port 24 away from one end of the mounting frame 1 when the wind speed has not yet reached the set value and the wind shield 2 has not yet completely passed over the exhaust port 24. The airflow can only be guided from the partially opened exhaust port 24 to the exhaust pipe 4 and finally discharged outward through the end of the exhaust pipe 4. If the curved plate 23 is not provided, the airflow may enter the exhaust pipe 4 from the exhaust port 24 between the wind shield 2 and the mounting frame 1 and then pass through the exhaust port 24 again. The exhaust port 24 on the side of the windshield 2 facing away from the mounting frame 1 discharges air upward (if the vehicle body is high at this time, this part of the airflow will act on the vehicle body, applying a large lateral load to the vehicle, which is not conducive to the driving safety of the vehicle), and the setting of the curved plate 23 ensures that when the wind speed does not exceed the set safety value, the airflow can only be discharged from the end of the exhaust pipe 4 and pass through the bottom of the vehicle chassis close to the bridge deck, thereby reducing the effective area of ​​the high-speed airflow acting on the vehicle as much as possible, thereby reducing the lateral load force on the vehicle from the airflow.

[0051] Example 7, based on Example 4, as shown in the attached Figure 5 As shown, force-bearing belts 25 are provided on the upper and lower sides of the blocking airbag 15 (the force-bearing belts 25 are bonded and fixed to the blocking airbag 15 with high-strength glue), and the bottom of the abutment rod 16 is fixedly connected to the force-bearing belts 25 (the two are also bonded and fixed with high-strength glue). The provision of the force-bearing belts 25 increases the contact area between the abutment rod 16 and the blocking airbag 15 (equivalent to providing a force-bearing intermediate medium between the abutment rod 16 and the blocking airbag 15 to prevent the abutment rod 16 and the blocking airbag 15 from being directly in contact with each other, resulting in a smaller contact area and causing damage to the blocking airbag 15).

[0052] Wind power generation equipment or photovoltaic power generation equipment can be installed on both sides of the bridge to provide power to the power-consuming components in this solution.

[0053] The above is only for illustrating the present invention. It should be understood that the present invention is not limited to the above embodiments, and various variations that conform to the concept of the present invention are within the scope of protection of the present invention.

Claims

1. An intelligent bridge wind barrier, comprising a mounting frame (1), characterized in that: A windshield (2) is rotatably mounted on the mounting frame (1), and an arc-shaped groove (3) is provided on one side of the mounting frame (1), which is coaxially arranged with the windshield (2) and rotatably mounted therewith. The bottom of the arc-shaped groove (3) is connected to an exhaust pipe (4), and the exhaust pipe (4) extends to the bottom of the mounting frame (1). A liquid storage unit is coaxially provided on the outer wall of the arc-shaped groove (3), and the liquid storage unit is driven by the windshield (2). A liquid storage cavity (5) arranged in an S shape is provided on the bridge deck in a direction perpendicular to the bridge, and a plurality of liquid storage cavities (5) are spaced apart along the length direction of the bridge. The liquid storage cavity (5) is connected to the liquid storage unit, and an elastic deformation member (6) is provided at the upper end of the liquid storage cavity (5); The windshield (2) is provided with a ventilation window (7) and a blocking piece is provided in the ventilation window (7); the mounting frame (1) is provided with a wind speed sensor and the wind speed sensor is electrically connected to a microcontroller; the microcontroller controls the action of the blocking piece; The liquid storage unit comprises an arc-shaped box (8) provided on the outer wall of the arc-shaped groove (3) and arranged coaxially therewith, a valve plate (9) being provided in the arc-shaped box (8), and the valve plate (9) extending outward from the arc-shaped box (8) via a transmission rod (10) integrally connected therewith and then connected to the windshield (2); The windshield (2) is integrally provided with a curved plate (23) that is in rotational contact with the curved groove (3), and the curved plate (23) is fixedly connected to the transmission rod (10). The curved groove (3) and the exhaust pipe (4) are connected via an exhaust port (24). When the windshield (2) is in a natural state, the exhaust port (24) is not blocked by the curved plate (23) on the side away from the mounting frame (1).

2. The intelligent bridge wind barrier according to claim 1, characterized in that: A plurality of fan blades (11) are arranged at intervals along the length direction of the bridge in the exhaust pipe (4), and the fan blades (11) drive a rectangular conductive frame (12), and the rectangular conductive frame (12) is connected to an electrical circuit via a conductive slip ring (29). Magnets (13) are arranged at intervals in the exhaust pipe (4), and the rectangular conductive frame (12) is arranged between two magnets (13). An electromagnet (28) is provided on the bottom wall of the liquid storage chamber (5), and the electromagnet (28) is connected to the above-mentioned electrical circuit. Magnetorheological fluid is stored in the arc box (8).

3. The intelligent bridge wind barrier according to claim 1, characterized in that: The blocking member comprises a blocking airbag (15) arranged in the ventilation window (7), and the blocking airbag (15) is fixed to the side walls of the ventilation window (7) on both sides along the length extension direction of the bridge; an abutment rod (16) elastically connected to the windshield (2) is slidably installed in the windshield (2) located on the upper and lower sides of the blocking airbag (15), and the abutment rod (16) is fixedly connected to the blocking airbag (15) at one end facing the blocking airbag (15); the blocking airbag (15) is connected to a control tube (17), and the control tube (17) is provided with a solenoid valve (18) electrically connected to a microcontroller.

4. The intelligent bridge wind barrier according to claim 3, characterized in that: The outer wall of the arc box (8) is provided with an arc-shaped air storage cavity (19) arranged coaxially therewith, and a first flexible body (20) is provided at one end of the arc-shaped air storage cavity (19) away from the arc box (8). A second flexible body (21) and a third flexible body (22) are respectively provided on the upper and lower outer walls of the arc box (8) and are both communicated with the arc-shaped air storage cavity (19). The arc-shaped air storage cavity (19) is respectively communicated with the bottom of the arc box (8) and the control pipe (17).

5. The intelligent bridge wind barrier according to claim 3, characterized in that: The upper and lower sides of the blocking airbag (15) are respectively provided with force-bearing belts (25), and the bottom of the abutting rod (16) is fixedly connected to the force-bearing belts (25).

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