Bridge anti-crosswind device

Abstract

The utility model discloses a bridge anti-crosswind device, relates to the technical field of bridges, and aims to solve the technical problem that when a vehicle with a larger volume runs on a bridge and crosswind airflow passes through, the vehicle is easy to roll over due to the larger contact area between the airflow and the side surface of the vehicle, the bridge anti-crosswind device comprises a plurality of windshield frames, and a notch is formed in one side of each windshield frame. Through the guide fan blades, when the wind is weak, the first torsional spring and the transmission plate act force on the guide fan blades, so that the guide fan blades cannot move, air flow flows towards the bridge ground, the ground cleaning function can be achieved, meanwhile, when the wind is strong, the first torsional spring and the transmission plate cannot limit the movement of the guide fan blades, and the wind energy is saved. When the air flow passes through the guide fan blades, the air flow is in an inclined upward state, so that the air flow passing through the guide fan blades is converged with the air flow outside the bridge, the damage of strong wind to the bridge is avoided, and the reliability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridges, and more specifically, to a crosswind prevention device for bridges. Background Art

[0002] Crosswind on a bridge refers to the action of wind on the bridge in the horizontal direction. This wind load has a direct impact on the stability and safety of the bridge; in windy weather, especially in environments such as large bridges and viaducts, strong winds may cause the deterioration of vehicle running performance, affect lateral stability, and even cause serious accidents such as vehicle overturning.

[0003] Currently, when a large vehicle travels on a bridge and crosswind airflow passes by, due to the large contact area between the airflow and the side of the vehicle, it is easy to cause phenomena such as vehicle rollover, thus affecting the driving safety of the driver. In view of this, we propose a crosswind prevention device for bridges. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, adapt to the actual needs, and provide a crosswind prevention device for bridges to solve the technical problem that when a large vehicle travels on a bridge and crosswind airflow passes by, due to the large contact area between the airflow and the side of the vehicle, it is easy to cause vehicle rollover.

[0005] To solve the above technical problem, the utility model provides the following technical solution: A crosswind prevention device for bridges, including a number of windshields. A notch is provided on one side of each windshield, and a mounting plate is fixedly connected to the bottom of each windshield. A wind guiding unit is arranged inside the notch; the wind guiding unit includes a number of support rods; connection units are arranged on both sides of each windshield, and the connection units are fixedly connected to the windshield; a number of the support rods are jointly movably connected to the inner walls on both sides of the notch. A guiding fan blade is fixedly sleeved on the outer wall of each support rod, and a passage is formed between adjacent two guiding fan blades. Transmission cylinders are fixedly sleeved at both ends of each support rod, and a transmission plate is movably connected between adjacent two transmission cylinders through a first pin. First torsion springs are movably sleeved at both ends of each support rod. In the utility model, through the guiding fan blades, when encountering weak wind, a force is applied to the guiding fan blades through the first torsion springs and the transmission plates, making it impossible for them to move, so that the airflow flows towards the bridge ground, and the function of ground cleaning can be realized. At the same time, when encountering strong wind, the first torsion springs and the transmission plates cannot restrict the movement of the guiding fan blades. When the airflow passes through the guiding fan blades, the flow direction of the airflow is in an inclined upward state, so that the airflow passing through the guiding fan blades converges with the airflow outside the bridge, thereby avoiding the damage caused by strong wind to the bridge and being beneficial to improving the reliability of the device.

[0006] Preferably, a first guide plate and a second guide plate are respectively fixedly connected to one side of the guiding fan blades. In this utility model, by providing the first guide plate and the second guide plate on the guiding fan blades, during weak wind, through the action of the first torsion spring and the transmission plate between two adjacent transmission cylinders on the support rod, when the weak wind passes through the guiding fan blades, the guiding fan blades cannot deform, and the airflow direction is changed. As shown in the figure, the airflow flows towards the ground, enabling the function of cleaning the ground. At the same time, when encountering strong wind, the acting force generated by the first torsion spring and the transmission plate on the guiding fan blades is less than the acting force of the strong wind on the guiding fan blades, causing the guiding fan blades to rotate through the second guide plate. As shown in the figure, at this time, the airflow direction is inclined upwards, and the airflow passing through the guiding fan blades is merged with the airflow flowing on the bridge, thereby avoiding damage to the bridge caused by strong wind.

[0007] Preferably, the connecting unit includes two plug plates, and the two plug plates are commonly fixedly connected to one side of the windshield frame. A jack is provided on the other side of each windshield frame.

[0008] Preferably, the inner walls on both sides of the jack are movably connected with spring telescopic rods, and a first spring is fixedly connected to the side surface of the spring telescopic rod, and one end of the first spring is fixedly connected to the inner wall on one side of the jack.

[0009] Preferably, a chute is provided at the top of the plug plate, a through hole is provided at the top of the plug plate, and one end of the spring telescopic rod is adapted to the through hole.

[0010] Preferably, an arc-shaped slide rail is provided on the inner wall at the bottom of the jack. One end of the spring telescopic rod is fixedly connected with a first plug rod, and both ends of the first plug rod are respectively movably connected with the inner walls on both sides of the jack. When installing the windshield frames on both sides of the bridge in this utility model, the spring telescopic rod rotates through the first plug rod, and through the telescopic function of the spring telescopic rod itself, one end of the spring telescopic rod moves from the chute to the inside of the through hole. During use, the spring telescopic rod can be restricted in rotation through the arc-shaped slide rail, enabling the adjacent windshield frames to be tightly connected, and the strong wind cannot remove a single or multiple windshield frames, which is beneficial to improving the stability of the device.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] 1. In this utility model, through the guiding fan blades, during weak wind, through the action of the first torsion spring and the transmission plate on the guiding fan blades, the guiding fan blades cannot move, causing the airflow to flow towards the bridge ground, enabling the function of cleaning the ground. At the same time, when encountering strong wind, the first torsion spring and the transmission plate cannot restrict the movement of the guiding fan blades. When the airflow passes through the guiding fan blades again, the airflow direction is in an inclined upward state, so that the airflow passing through the guiding fan blades is merged with the airflow outside the bridge, thereby avoiding damage to the bridge caused by strong wind, which is beneficial to improving the reliability of the device.

[0013] 2. In this utility model, by setting the first guide plate and the second guide plate on the guiding fan blades, during the weak wind process, through the action of the first torsion spring and the transmission plate between two adjacent transmission cylinders on the support rod, when the weak wind passes through the guiding fan blades, the guiding fan blades cannot deform and change the airflow direction. As shown in the figure, the airflow flows towards the ground, and the function of cleaning the ground can be realized. At the same time, when encountering strong wind, the acting force generated by the first torsion spring and the transmission plate on the guiding fan blades is less than the acting force of the strong wind on the guiding fan blades, enabling the guiding fan blades to rotate through the second guide plate. As shown in the figure, at this time, the airflow direction tilts upward, and the airflow passing through the guiding fan blades converges with the airflow flowing on the bridge, thereby avoiding damage to the bridge caused by strong wind.

[0014] 3. When installing the windshields on both sides of the bridge, the spring telescopic rod rotates through the first insertion rod, and through the telescopic function of the spring telescopic rod itself, one end of the spring telescopic rod moves from the sliding groove to the inside of the through hole. During use, the spring telescopic rod can be restricted in rotation through the arc-shaped slide rail, enabling tight connection between two adjacent windshields, and strong wind cannot remove a single or multiple windshields, which is beneficial to improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a three-dimensional exploded structural schematic diagram of the present utility model;

[0017] Figure 3 is of the present utility model Figure 2 the enlarged structural schematic diagram at A in;

[0018] Figure 4 is of the present utility model Figure 2 the enlarged structural schematic diagram at B in;

[0019] Figure 5 is a three-dimensional partial structural schematic diagram of the present utility model;

[0020] Figure 6 is of the present utility model Figure 5 the enlarged structural schematic diagram at C in;

[0021] Figure 7 is the structural schematic diagram of the use state of the guiding fan blades of the present utility model Figure 1 ;

[0022] Figure 8 is the structural schematic diagram of the use state of the guiding fan blades of the present utility model Figure 2 .

[0023] Description of reference numerals in the figure: 1, wind shield; 2, notch; 3, mounting plate; 4, air guiding unit; 401, support rod; 402, guiding fan blade; 402a, first guiding plate; 402b, first guiding plate; 403, transmission cylinder; 404, transmission plate; 405, first torsion spring; 5, connection unit; 501, plug board; 501a, sliding groove; 501b, through hole; 502, jack; 502a, arc-shaped sliding rail; 503, spring telescopic rod; 503a, first plug rod; 504, first spring. Detailed implementation manner

[0024] As Figures 1 to 8 shown, a crosswind prevention device for bridges according to the present utility model includes a plurality of wind shields 1. A notch 2 is provided on one side of each wind shield 1, and a mounting plate 3 is fixedly connected to the bottom of each wind shield 1. An air guiding unit 4 is arranged inside the notch 2; the air guiding unit 4 includes a plurality of support rods 401; connection units 5 are arranged on both sides of each wind shield 1, and the connection units 5 are fixedly connected to the wind shields 1; a plurality of support rods 401 are jointly movably connected to the inner walls on both sides of the notch 2. A guiding fan blade 402 is fixedly sleeved on the outer wall of each support rod 401. A passage is formed between adjacent two guiding fan blades 402. Transmission cylinders 403 are fixedly sleeved at both ends of each support rod 401. A transmission plate 404 is movably connected between adjacent two transmission cylinders 403 through a first pin. First torsion springs 405 are movably sleeved at both ends of each support rod 401. In the present utility model, through the guiding fan blade 402, when encountering weak wind, a force is applied to the guiding fan blade 402 through the first torsion spring 405 and the transmission plate 404, so that it cannot move, and the air flow is made to flow towards the bridge ground, and the function of ground cleaning can be realized. At the same time, when encountering strong wind, the force applied to the guiding fan blade 402 by the first torsion spring 405 and the transmission plate 404 is less than the force generated by the strong wind on the guiding fan blade 402, so it moves. When the air flow passes through the guiding fan blade 402, the air flow direction is in an inclined upward state, so that the air flow passing through the guiding fan blade 402 converges with the air flow outside the bridge, thereby avoiding the damage caused by strong wind to the bridge and being beneficial to improving the reliability of the device.

[0025] In an embodiment of the present utility model, a first guiding plate 402a and a second guiding plate 402b are respectively fixedly connected to one side of the guiding fan blade 402. It should be noted that by providing the first guiding plate 402a and the second guiding plate 402b on the guiding fan blade 402, during the weak wind process, a force is applied to the support rod 401 through the first torsion spring 405 and the transmission plate 404 between adjacent two transmission cylinders 403. When the weak wind passes through the guiding fan blade 402, the guiding fan blade 402 cannot deform and changes the air flow direction, as Figure 7As shown, it flows towards the ground, enabling the function of ground cleaning. At the same time, when encountering strong winds, the acting forces generated by the first torsion spring 405 and the transmission plate 404 on the guiding fan blade 402 are less than the acting force of the strong wind on the guiding fan blade 402, causing the guiding fan blade 402 to rotate through the second guiding plate 402b, as Figure 8 shown. At this time, the airflow direction is inclined upward, and the airflow passing through the guiding fan blade 402 is combined with the airflow flowing on the bridge, thereby avoiding damage to the bridge caused by strong winds. When the bridge encounters weak winds, the first torsion spring 405 and the transmission plate 404 act on the guiding fan blade 402, making it unable to move, as Figure 7 shown. After the airflow passes through the guiding fan blade 402, the airflow flows towards the ground, which can clean the ground. When encountering strong winds, an aisle is formed by the adjacent two guiding fan blades 402 through the first guiding plate 402b. When the strong wind passes through, the flow space of the aisle is small and the resistance is large. During this process, the flow resistance of the strong wind is greater than the acting force of the first guiding plate 402b on the guiding fan blade 402, causing the guiding fan blade 402 to move, as Figure 8 shown. When the airflow passes through the guiding fan blade 402, the airflow direction changes and inclines upward. During this process, the airflow after passing through is combined with the strong wind airflow above the bridge, reducing the damage caused by the strong wind to the bridge.

[0026] In the embodiment of the utility model, the connecting unit 5 includes two plug plates 501, which are fixedly connected to one side of the windshield frame 1. A plug hole 502 is opened on the other side of each windshield frame 1. The inner walls on both sides of the plug hole 502 are movably connected with spring telescopic rods 503. The side surface of the spring telescopic rod 503 is fixedly connected with a first spring 504 and one end of the first spring 504 is fixedly connected to the inner wall of one side of the plug hole 502. A slide groove 501a is opened on the top of the plug plate 501. A through hole 501b is provided at the top and one end of the spring telescopic rod 503 is matched with the through hole 501b. An arc-shaped slide rail 502a is provided on the inner wall at the bottom of the insertion hole 502. One end of the spring telescopic rod 503 is fixedly connected with a first plug rod 503a and both ends of the first plug rod 503a are movably connected with the inner walls of both sides of the insertion hole 502. When the windshield 1 is installed on both sides of the bridge, the spring telescopic rod 503 rotates through the first plug rod 503a, and the spring telescopic rod 503 itself is extended and retracted. The function of the spring telescopic rod 503 is to move one end of the spring telescopic rod 503 from the slide groove 501a to the inside of the through hole 501b. During use, the spring telescopic rod 503 can limit the rotation of the spring telescopic rod 503 through the arc slide rail 502a, so that two adjacent wind shield frames 1 can be closely connected. Strong wind cannot remove a single or multiple wind shield frames 1, which is beneficial to improving the stability of the device. During installation, a groove is first made on the bridge ground, and cement is poured in, and then it is installed with cement through bolts passing through the mounting plate 3. During the splicing process, the plug plate 501 is first moved into the plug hole 502. During this process, the plug plate 501 pushes the spring telescopic rod 503 to rotate, and through the telescopic function of the spring telescopic rod 503 itself, the spring telescopic rod 503 passes through one end of the first spring 504, so that it moves along the slide groove 501a to the inside of the through hole 501b. At this time, one end of the spring telescopic rod 503 limits the movement of the spring telescopic rod 503 through the arc slide rail 502a.

[0027] Working principle: This embodiment provides a bridge anti-crosswind device. During installation, a groove is first made on the bridge ground, and cement is poured in. After it is air-dried, bolts are passed through the mounting plate 3 to install it with the cement. During the splicing process, the plug plate 501 is first moved into the plug hole 502. During this process, the plug plate 501 pushes the spring telescopic rod 503 to rotate, and through the telescopic function of the spring telescopic rod 503 itself, the spring telescopic rod 503 passes through one end of the first spring 504, so that it moves along the slide groove 501a to the inside of the through hole 501b. At this time, one end of the spring telescopic rod 503 limits the movement of the spring telescopic rod 503 through the arc slide rail 502a. When the bridge encounters weak wind, the first torsion spring 405 and the transmission plate 404 act on the guide blade 402 to prevent it from moving. Figure 7As shown, after the airflow passes through the guide blades 402, the airflow flows toward the ground to clean the ground. When encountering strong winds, two adjacent guide blades 402 form a corridor through the first guide plate 402b. When strong winds pass through, the corridor has a small circulation space and a large resistance. In this process, the strong wind circulation resistance is greater than the force of the first guide plate 402b on the guide blades 402, causing the guide blades 402 to move. Figure 8 As shown, when the airflow passes through the guide blade 402, the direction of the airflow changes and tilts upward. In this process, the airflow merges with the strong wind above the bridge after passing through, reducing the damage to the bridge caused by the strong wind.

[0028] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A crosswind prevention device for bridges, characterized in that, It includes a number of windshields (1). A notch (2) is provided on one side of each windshield (1). A mounting plate (3) is fixedly connected to the bottom of each windshield (1). A wind guiding unit (4) is arranged inside the notch (2). The wind guiding unit (4) includes a number of support rods (401). Connection units (5) are arranged on both sides of each windshield (1), and the connection units (5) are fixedly connected to the windshields (1). A number of the support rods (401) are jointly movably connected to the inner walls on both sides of the notch (2). A guiding fan blade (402) is fixedly sleeved on the outer wall of each support rod (401). A passage is formed between adjacent two guiding fan blades (402). Transmission cylinders (403) are fixedly sleeved at both ends of each support rod (401). A transmission plate (404) is movably connected between adjacent two transmission cylinders (403) through a first pin. First torsion springs (405) are movably sleeved at both ends of each support rod (401).

2. The crosswind prevention device for a bridge according to claim 1, characterized in that, A first guiding plate (402a) and a second guiding plate (402b) are respectively fixedly connected to one side of the guiding fan blade (402).

3. The crosswind prevention device for a bridge according to claim 1, characterized in that, The connection unit (5) includes two insertion plates (501). The two insertion plates (501) are jointly fixedly connected to one side of the windshield (1). A jack (502) is provided on the other side of each windshield (1).

4. The crosswind prevention device for a bridge according to claim 3, characterized in that, Spring telescopic rods (503) are movably connected to the inner walls on both sides of the jack (502). A first spring (504) is fixedly connected to the side surface of the spring telescopic rod (503), and one end of the first spring (504) is fixedly connected to the inner wall on one side of the jack (502).

5. The crosswind prevention device for a bridge according to claim 4, characterized in that, A chute (501a) is provided at the top of the insertion plate (501). A through hole (501b) is provided at the top of the insertion plate (501), and one end of the spring telescopic rod (503) is adapted to the through hole (501b).

6. The crosswind protection device for a bridge according to claim 5, characterized in that, An arc-shaped slide rail (502a) is provided on the inner wall at the bottom of the jack (502). A first insertion rod (503a) is fixedly connected to one end of the spring telescopic rod (503), and both ends of the first insertion rod (503a) are movably connected to the inner walls on both sides of the jack (502).

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