Height limiting device for road and bridge traffic

Abstract

The utility model provides a height limiting device for road and bridge traffic, and belongs to the technical field of traffic transportation. The problem that an existing height limiting device is insufficient in early warning effect is solved. The height limiting device for road and bridge traffic comprises a height limiting frame fixed to the upper portion of a road, a display screen fixedly connected to a transverse plate of the height limiting frame, a collision rod rotatably hinged and positioned to the top of a vertical rod of the height limiting frame, a first detection column and a second detection column, and the first detection column and the second detection column are located in front of the height limiting frame, located on the two sides of the road and oppositely arranged. The first detection column is fixedly connected with a distance sensor arranged in the horizontal direction, the distance sensor is electrically connected with the display screen, the collision rod is arranged in the horizontal direction and located in the height limiting frame, and the collision rod and the distance sensor are located at the same height. The height limiting device for road and bridge traffic has the advantages that the early warning effect of the height limiting device is improved, and the safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transportation, and relates to a height limit device for road and bridge traffic. Background Art

[0002] Vehicles often pass under tunnels, viaducts and overpasses. The heights of tunnels, viaducts and overpasses from the ground are fixed. In order to prevent some over-height vehicles from hitting tunnels, viaducts and overpasses during driving, warning signs are hung or height limit devices are set on the roads in front of tunnels, viaducts and overpasses.

[0003] For existing height limit devices, for example, a Chinese patent document discloses a height limit device for road and bridge traffic [Patent No.: 202122051728.5; Application Publication No.: CN216040836U], which includes a height limit cross beam. A first hollow column is connected below the height limit cross beam. The first hollow column and the second hollow column are connected through a first fixing mechanism. The second hollow column and the third hollow column are connected through a second fixing mechanism. The first fixing mechanism includes a fixing block. One end of the fixing block is connected to one end of a second rod through a first rod. A first spring is arranged on the second rod. A through groove is arranged in the overlapping part of the first hollow column and the second hollow column. One end of the second rod is connected to one end of a limiting block. A clamping block is hinged on both the upper and lower sides of the other end of the limiting block. A second spring is connected between the two clamping blocks and the limiting block on the side where they are close to each other.

[0004] For the height limit device with this kind of structure, the height limit device can be quickly assembled and disassembled through the first fixing mechanism and the second fixing mechanism, and the problems of inconvenient installation and inconvenient secondary use of the existing height limit equipment can be effectively solved. However, for the height limit device with this kind of structure, during use, it is fixedly set above the road. During the driving process of the vehicle, it does not play a role of prompting and warning. When the driver is not paying attention, the vehicle will directly hit the height limit cross beam, which has a certain danger. Summary of the Invention

[0005] The purpose of the utility model is to propose a height limit device for road and bridge traffic aiming at the above problems existing in the prior art, and the technical problem to be solved is how to improve the warning effect of the height limit device and improve safety.

[0006] The object of the present utility model can be achieved by the following technical solutions: A height limit device for road and bridge traffic, including a height limit frame fixed above the road, characterized in that it further includes a display screen fixedly connected to the cross plate of the height limit frame, a collision rod rotatably hinged and positioned at the top of the vertical rod of the height limit frame, a first detection column and a second detection column located in front of the height limit frame. The first detection column and the second detection column are located on both sides of the road and are arranged oppositely. A distance sensor arranged horizontally is fixedly connected to the first detection column. The distance sensor is electrically connected to the display screen. The collision rod is arranged horizontally and is located inside the height limit frame. The collision rod and the distance sensor are at the same height.

[0007] The height limit frame is installed in front of tunnels, viaducts and overpasses, such as 200 meters or 500 meters ahead. The first detection column and the second detection column are installed in front of the height limit frame, such as 100 meters or 200 meters ahead. The distance sensor can be a laser distance sensor, an infrared distance sensor or an ultrasonic distance sensor. The heights of the collision rod and the distance sensor are the heights restricted by the tunnels, viaducts and overpasses. The first detection column and the second detection column are located on both sides of the road and are arranged oppositely. At this time, the distance detected by the distance sensor is the distance between the first detection column and the second detection column and is transmitted to the controller. When a vehicle exceeding the restricted height passes by, due to the occlusion of the vehicle, the distance detected by the distance sensor changes, and this signal is transmitted to the controller. The controller receives the signal, makes the display screen flash and emits an alarm sound, and displays a warning slogan to remind the driver, improving the early warning effect of the height limit device and enhancing safety. However, during driving, there is a problem that some drivers fail to wake up in time and do not realize that the vehicle exceeds the height. The vehicle continues to drive and will collide with the collision rod. After the collision rod is collided, it will rotate, that is, the collision rod collides with the vehicle with a certain intensity, but will not cause major damage, so that neither the height limit frame nor the vehicle will be damaged too much. Through the collision between the collision rod and the vehicle, the driver is alerted again, making the driver aware of the safety problem, thereby improving the early warning effect of the height limit device and enhancing safety. When necessary, a camera can be installed on the first detection column to photograph the vehicle exceeding the height and display the license plate number on the display screen to further strengthen the warning effect.

[0008] In the above-mentioned height limit device for road and bridge traffic, the number of the collision bars is two. The two collision bars are respectively rotatably hinged and positioned at the tops of the two vertical rods. There is a certain distance between the two collision bars, and both of the two collision bars are located directly below the cross plate. This structure enables the collision bars to be arranged horizontally across the entire road, and the two collision bars do not affect each other, ensuring that a vehicle exceeding the height collides with the collision bars and will not collide with the cross plate, alerting the driver again, making the driver aware of the safety issue, thereby improving the warning effect of the height limit device and enhancing the safety performance.

[0009] In the above-mentioned height limit device for road and bridge traffic, a rotating cylinder is rotatably sleeved on the top of the vertical rod. An annular retaining ring is fixedly connected to the top of the vertical rod. The bottom end of the rotating cylinder abuts against the retaining ring. One end of the collision bar is hinged to the bottom end of the rotating cylinder. A pull rod is hinged to the top end of the rotating cylinder, and the other end of the pull rod is hinged to the middle part or the other end of the collision bar. Long strip-shaped elastic sheets are fixedly connected to both sides of the cross plate, and the pull rod is located between the two elastic sheets. The elastic sheets have sufficient strength to ensure that the collision bar is in the set position when the collision bar is not impacted. When the collision bar is impacted, the elastic sheets are deformed, enabling the collision bar to rotate over the elastic sheets, so that the collision bar collides with the vehicle with a certain intensity but will not cause major damage, alerting the driver while not causing excessive economic losses.

[0010] As another situation, in the above-mentioned height limit device for road and bridge traffic, a rotating cylinder is rotatably sleeved on the top of the vertical rod. An annular retaining ring is fixedly connected to the top of the vertical rod. The bottom end of the rotating cylinder abuts against the retaining ring. One end of the collision bar is fixedly connected to the rotating cylinder. Long strip-shaped elastic sheets are fixedly connected to both sides of the cross plate, and the collision bar is located between the two elastic sheets. The elastic sheets have sufficient strength to ensure that the collision bar is in the set position when the collision bar is not impacted. When the collision bar is impacted, the elastic sheets are deformed, enabling the collision bar to rotate over the elastic sheets, so that the collision bar collides with the vehicle with a certain intensity but will not cause major damage, alerting the driver while not causing excessive economic losses.

[0011] In the above-mentioned height limit device for road and bridge traffic, a bearing is provided between the rotating cylinder and the vertical rod. When necessary, the bearing can be set to make the rotation of the collision bar smooth without jamming problems.

[0012] In the above-mentioned height limit device for road and bridge traffic, the elastic sheet is an elastic metal sheet. This structure enables the elastic sheet to have sufficient elasticity and sufficient strength at the same time.

[0013] In the above height-limiting device for road and bridge traffic, a plurality of solar panels are provided on the cross plate, and the solar panels are electrically connected to both the display screen and the distance sensor through a storage battery. Utilizing solar energy can save energy and protect the environment.

[0014] In the above height-limiting device for road and bridge traffic, a wire passing pipe is buried underground beside the road, one end of the wire passing pipe is located below the first detection column, and the other end of the wire passing pipe is located below one of the vertical rods. The setting of the wire passing pipe plays a role in protecting the wire, enabling the display screen and the distance sensor to be electrically connected.

[0015] In the above height-limiting device for road and bridge traffic, a rain shield is fixedly connected to the top of the first detection column, and the rain shield is directly above the distance sensor. The rain shield plays a role in shading and rain protection, preventing the distance sensor from being exposed to the sun and rain, improving the service life of the distance sensor. At the same time, the overall distance sensor is located inside the first detection column.

[0016] In the above height-limiting device for road and bridge traffic, a street lamp is provided on the second detection column, and the street lamp is obliquely above the distance sensor. By setting the street lamp, the second detection column serves two purposes, improving practicality.

[0017] Compared with the prior art, the height-limiting device for road and bridge traffic provided by the present utility model has the following advantages:

[0018] 1. This height-limiting device detects whether the vehicle is overheight through the distance sensor, and then reminds the driver that the vehicle is overheight through the display screen, improving the warning effect of the height-limiting device and enhancing safety.

[0019] 2. When the driver fails to realize that the vehicle is overheight, this height-limiting device makes a collision with a certain intensity but not very strong destructiveness with the vehicle through the collision rod, waking up the driver again, improving the warning effect of the height-limiting device and enhancing safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall structural layout schematic diagram of this height-limiting device.

[0021] Figure 2 is the overall structural schematic diagram of the collision rod of this height-limiting device.

[0022] Figure 3 is this height-limiting device Figure 1 The enlarged view of area A.

[0023] In the figure, 1 is a road; 2 is a height-limiting frame; 21 is a cross plate; 22 is a vertical rod; 3 is a display screen; 4 is a collision rod; 5 is a first detection column; 6 is a second detection column; 7 is a distance sensor; 8 is a rotating cylinder; 9 is a retaining ring; 10 is a pull rod; 11 is an elastic sheet; 12 is a solar panel; 13 is a wire passing pipe; 14 is a rain shield; 15 is a street lamp. Detailed implementation mode

[0024] The following are specific embodiments of the present invention and in combination with the attached drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0025] Embodiment 1

[0026] As Figure 1 shown, the height-limiting device for bridge traffic on the road 1 includes a height-limiting frame 2, a display screen 3, a collision rod 4, a first detection column 5, a second detection column 6, a distance sensor 7, a rotating cylinder 8, a retaining ring 9, a pull rod 10 and an elastic sheet 11.

[0027] The height-limiting frame 2 is in an inverted C shape. The height-limiting frame 2 includes a cross plate 21 and two vertical rods 22. The two vertical rods 22 are fixed on both sides of the road 1, and both ends of the cross plate 21 are fixedly connected to the tops of the two vertical rods 22, so that the height-limiting frame 2 is fixed above the road 1. The display screen 3 is fixedly connected to the cross plate 21 of the height-limiting frame 2.

[0028] The number of the collision rods 4 is two. The two collision rods 4 are respectively rotatably hinged and positioned at the tops of the two vertical rods 22. There is a certain distance between the two collision rods 4. Both of the two collision rods 4 are located directly below the cross plate 21. The collision rods 4 are arranged horizontally and are located inside the height-limiting frame 2. Specifically, as Figure 2 shown, a rotating cylinder 8 is rotatably sleeved on the top of the vertical rod 22. A bearing is provided between the rotating cylinder 8 and the vertical rod 22. An annular retaining ring 9 is fixedly connected to the top of the vertical rod 22. The bottom end of the rotating cylinder 8 abuts against the retaining ring 9. One end of the collision rod 4 is hinged to the bottom end of the rotating cylinder 8. A pull rod 10 is hinged to the top end of the rotating cylinder 8. The pull rod 10 is hinged to the collision rod 4. Elastic sheets 11 in the shape of long strips are fixedly connected to both sides of the cross plate 21. The pull rod 10 is located between the two elastic sheets 11. The elastic sheets 11 are elastic metal sheets. In this embodiment, the other end of the pull rod 10 is hinged to the middle of the collision rod 4. In actual production, the other end of the pull rod 10 can be hinged to the other end of the collision rod 4.

[0029] The first detection column 5 and the second detection column 6 are located in front of the height-limiting frame 2. The first detection column 5 and the second detection column 6 are located on both sides of the road 1 and are arranged opposite to each other. As Figure 3As shown in the figure, a distance sensor 7 is fixedly connected to the first detection column 5 and is arranged horizontally. The distance sensor 7 is located at the top of the first detection column 5. The collision rod 4 and the distance sensor 7 are at the same height. A rain shield 14 is also fixedly connected to the top of the first detection column 5, and the rain shield 14 is located directly above the distance sensor 7. A street lamp 15 is provided on the second detection column 6, and the street lamp 15 is located obliquely above the distance sensor 7.

[0030] In this embodiment, four solar panels 12 are provided on the cross plate 21. In actual production, the number of solar panels 12 can be three or six. An under-pipe 13 for wires to pass through is buried underground beside the road 1. One end of the under-pipe 13 is located below the first detection column 5, and the other end of the under-pipe 13 is located below one of the vertical rods 22. The distance sensor 7 and the display screen 3 are electrically connected through a controller. The solar panels 12 are electrically connected to both the display screen 3 and the distance sensor 7 through a storage battery.

[0031] During operation, when a vehicle exceeding the restricted height passes by, due to the occlusion of the vehicle, the distance detected by the distance sensor 7 changes, and this signal is transmitted to the controller. The controller receives the signal, causes the display screen 3 to flash and emit an alarm sound, and displays a warning slogan to remind the driver. When some drivers fail to wake up in time and are not aware of the problem that the vehicle exceeds the height, and the vehicle continues to move forward, the vehicle will collide with the collision rod 4, causing a collision of a certain intensity but not causing major damage with the vehicle, waking up the driver again and making the driver aware of the safety problem.

[0032] Embodiment Two

[0033] The structure and principle of this embodiment are basically the same as those of Embodiment One. The difference is that in this embodiment, a rotating cylinder 8 is rotatably sleeved on the top of the vertical rod 22. A ring-shaped retaining ring 9 is fixedly connected to the top of the vertical rod 22. The bottom end of the rotating cylinder 8 abuts against the retaining ring 9. One end of the collision rod 4 is fixedly connected to the rotating cylinder 8. Long strip-shaped elastic pieces 11 are fixedly connected to both sides of the cross plate 21. The collision rod 4 is located between the two elastic pieces 11.

[0034] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the technical field to which the present utility model belongs can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0035] Although terms such as road 1, height-limiting frame 2, horizontal plate 21, vertical rod 22, display screen 3, collision rod 4, first detection column 5, second detection column 6, distance sensor 7, rotating cylinder 8, retaining ring 9, pull rod 10, elastic sheet 11, solar panel 12, wire pipe 13, rain shield 14, street lamp 15, etc. are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. A height limiting device for road and bridge traffic, comprising a height limiting frame (2) fixed above a road (1), characterized in that: The invention also comprises a display screen (3) fixedly connected to the horizontal plate (21) of the height limit frame (2), a collision rod (4) rotatably hingedly positioned at the top of the vertical rod (22) of the height limit frame (2), a first detection column (5) and a second detection column (6) located in front of the height limit frame (2), wherein the first detection column (5) and the second detection column (6) are located on both sides of the road (1) and are arranged opposite to each other, a distance sensor (7) arranged in the horizontal direction is fixedly connected to the first detection column (5), and the distance sensor (7) and the display screen (3) are electrically connected, the collision rod (4) is arranged in the horizontal direction and is located in the height limit frame (2), and the collision rod (4) and the distance sensor (7) are located at the same height.

2. A height limiting device for road and bridge traffic according to claim 1, characterized in that: There are two collision rods (4), and the two collision rods (4) are respectively rotatably hinged and positioned at the tops of the two vertical rods (22). There is a certain distance between the two collision rods (4), and the two collision rods (4) are both located directly below the horizontal plate (21).

3. A height limiting device for road and bridge traffic according to claim 1 or 2, characterized in that: A rotating cylinder (8) is rotatably sleeved on the top of the vertical rod (22), an annular retaining ring (9) is fixedly connected to the top of the vertical rod (22), the bottom end of the rotating cylinder (8) abuts against the retaining ring (9), one end of the collision rod (4) is hinged to the bottom end of the rotating cylinder (8), a pull rod (10) is hinged to the top end of the rotating cylinder (8), the other end of the pull rod (10) is hinged to the middle part of the collision rod (4) or the other end of the collision rod (4), and long strip-shaped elastic sheets (11) are fixedly connected to both sides of the horizontal plate (21), and the pull rod (10) is located between the two elastic sheets (11).

4. A height limiting device for road and bridge traffic according to claim 1 or 2, characterized in that: A rotating cylinder (8) is rotatably sleeved on the top of the vertical rod (22), an annular retaining ring (9) is fixedly connected to the top of the vertical rod (22), the bottom end of the rotating cylinder (8) abuts against the retaining ring (9), one end of the collision rod (4) is fixedly connected to the rotating cylinder (8), and long elastic sheets (11) are fixedly connected to both sides of the horizontal plate (21), and the collision rod (4) is located between two elastic sheets (11).

5. A height limiting device for road and bridge traffic according to claim 3 or 4, characterized in that: A bearing is provided between the rotating cylinder (8) and the vertical rod (22).

6. A height limiting device for road and bridge traffic according to claim 3 or 4, characterized in that: The elastic sheet (11) is an elastic metal sheet.

7. A height limiting device for road and bridge traffic according to claim 1 or 2, characterized in that: A plurality of solar panels (12) are arranged on the transverse plate (21), and the solar panels (12) are electrically connected to the display screen (3) and the distance sensor (7) via storage batteries.

8. A height limiting device for road and bridge traffic according to claim 1 or 2, characterized in that: A wire pipe (13) for the wire to pass through is buried underground beside the road (1), one end of the wire pipe (13) is located below the first detection column (5), and the other end of the wire pipe (13) is located below one of the vertical rods (22).

9. A height limiting device for road and bridge traffic according to claim 1 or 2, characterized in that: A rain shield (14) is fixedly connected to the top of the first detection column (5), and the rain shield (14) is located directly above the distance sensor (7).

10. A height limiting device for road and bridge traffic according to claim 1 or 2, characterized in that: A street lamp (15) is provided on the second detection column (6), and the street lamp (15) is located obliquely above the distance sensor (7).

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