Height limiting rod for traffic control of ultrahigh vehicle

Abstract

The utility model discloses a height limiting rod for traffic control of an ultrahigh vehicle, and relates to the technical field of height limiting rods. The device comprises a fracture rod and two fixing bases, supporting columns are welded to the upper portions of the fixing bases, angle limiting pieces are arranged on the upper end faces of the supporting columns, and prompting pieces are arranged on the upper portions of the angle limiting pieces. A height limiting plate is welded to the side portion of the rotating drum, two embedded grooves are formed in the side, away from the rotating drum, of the height limiting plate, strong magnetic blocks are arranged in the embedded grooves, a nut block is welded to the upper side of the height limiting plate, and a rotating piece is arranged in the nut block in a threaded fit mode. According to the utility model, through the running fit of the rotating drum and the angle limiting piece, the height limiting plate rotates around the shaft for buffering when being impacted, and meanwhile, the fracture rod is used for bearing tensile force and is fractured when exceeding the limit, so that the height limiting plate is conveniently and quickly released to realize avoidance, the overall damage risk of the structure is reduced, and the same effect can be realized through the impact of two surfaces of the height limiting plate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of height limiting rod, specifically relates to a height limiting rod for superhigh vehicle traffic management. BACKGROUND

[0002] The height limiting rod for superhigh vehicle traffic management is a special equipment for guaranteeing road facility safety and optimizing traffic management by limiting the passing height of vehicles.

[0003] The Chinese patent with the publication number CN205893950U discloses a road traffic height limiting rod device, which comprises a main support device, an auxiliary support device and an intercepting rod device, wherein the main support device is composed of a main limiting pipe, a main inserting rod, a main spring, a main support column, a main pull ring, a main support base and a main fixed plate, the main support column is arranged at one end of the main support base, the main pull ring is arranged on the main support base, the main limiting pipe is arranged at the other end of the main support column, the main fixed plate is arranged in the main support column and located at the bottom of the main limiting pipe, the main spring is arranged in the main limiting pipe and fixed at one end of the main fixed plate, the main inserting rod is arranged in the main limiting pipe and connected with the other end of the main spring, and the other end of the main inserting rod extends out of the main limiting pipe.

[0004] However, the road traffic height limiting rod device disclosed in the application can reduce direct impact damage by cooperation of the main spring, the auxiliary spring, the main limiting rod and the auxiliary limiting rod, and can make the height limiting cross rod lift and avoid when the vehicle hits the cross rod and triggers the spring release. However, the design relies on the spring pre-tightening force to maintain the initial position of the height limiting cross rod, and long-term use can cause unstable support due to spring fatigue. In addition, the rapid impact of the vehicle cannot guarantee that the height limiting cross rod can be lifted and avoided in time, and the sliding structure needs to be lubricated and rust-proofed regularly, which has high maintenance cost. In addition, after the limiting rod is pulled off, it can only be fixed by using a steel wire rope, which can affect the reuse effect. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, and provide a height limiting rod for superhigh vehicle traffic management, which solves the problems in the background art.

[0006] To solve the above technical problems, the basic idea of the technical scheme of the utility model is as follows:

[0007] A height limiting rod for superhigh vehicle traffic management, comprising: a broken rod and two fixed bases, a support column is welded on the upper part of the fixed base, an angle limiting piece is arranged on the upper end face of the support column, and a prompt piece is arranged on the upper part of the angle limiting piece.

[0008] The rotation cylinder is welded with a limiting plate on the side, the side of the limiting plate away from the rotation cylinder is provided with two embedded slots, the embedded slots are provided with strong magnetic blocks, the upper side of the limiting plate is welded with a nut block, the nut block is provided with a rotating part, the opposite inner end faces of the two rotating parts are provided with accommodating holes, and the two ends of the broken rod are located in the two accommodating holes respectively.

[0009] Optionally, the rotating part comprises a screw rod, the nut block is threadedly connected to the side of the screw rod, the opposite outer end faces of the two screw rods are provided with knobs, the nut block is located between the two knobs, and the accommodating hole is arranged on the end face of the screw rod away from the knob.

[0010] Optionally, the limiting plate is provided with a reflective warning strip on each face.

[0011] Optionally, the angle limiting part comprises a shaft rod arranged on the upper end face of the supporting column, the rotation cylinder is rotationally connected to the side of the shaft rod, the upper end face of the shaft rod is provided with a top plate corresponding to the prompt part, the prompt part is arranged on the upper end face of the top plate, and the rotation cylinder is located between the top plate and the supporting column.

[0012] Optionally, the side of the shaft rod is provided with an arc-shaped slot, and the inner wall of the rotation cylinder is provided with a rotating block rotationally connected to the arc-shaped slot.

[0013] Optionally, the prompt part comprises a connecting plate arranged on the upper end face of the top plate, the upper end face of the connecting plate is welded with an extension column, and the upper portion of the extension column is welded with a limiting prompt plate.

[0014] Optionally, the connecting plate is vertically provided with a plurality of through holes penetrating the connecting plate, the through holes are located on the side of the extension column, the upper end face of the top plate is provided with screw holes corresponding to the through holes, and the top plate is provided with a plurality of bolts, the lower portions of the bolts penetrate the through holes and are threadedly connected to the screw holes.

[0015] Optionally, the fixed base comprises a bottom plate welded to the lower end face of the supporting column, the bottom plate is vertically provided with a plurality of fixing holes penetrating the bottom plate, and the upper face of the bottom plate is welded with a plurality of reinforcing ribs welded to the side of the supporting column.

[0016] After the above technical scheme is adopted, the present application has the following advantages compared with the prior art, of course, any product implementing the present application does not necessarily need to achieve all the advantages described below:

[0017] Through the rotation cooperation of the rotating drum and the angle limiting piece, the height limiting plate is rotated around the shaft to buffer when impacted, meanwhile, the broken rod bears the tension and breaks when over-limiting, so as to quickly release the height limiting plate to realize avoidance, reduce the overall damage risk of the structure, and make the impact on both sides of the height limiting plate can realize the same effect, the height limiting plate can be temporarily connected through the adsorption between the strong magnetic blocks, the nut block and the rotating piece are threadedly matched to adjust the interval of the containing holes, the broken rod can be replaced, and the broken rod with a suitable material can be replaced according to the requirement, the maintenance efficiency and the structure reusability are improved, and the maintenance cost is reduced.

[0018] The specific embodiments of the utility model will be described in further detail below in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0020] In the drawings:

[0021] Figure 1 It is a three-dimensional structure schematic view of the height limiting rod;

[0022] Figure 2 It is a cross-sectional structure schematic view of the prompt piece;

[0023] Figure 3 It is a cross-sectional structure schematic view of the angle limiting piece;

[0024] Figure 4 It is a cross-sectional structure schematic view of the height limiting plate.

[0025] In the drawings, the component list represented by each sign is as follows:

[0026] The bottom plate 1, the fixed hole 101, the reinforcing rib 2, the support column 3, the shaft rod 301, the arc-shaped groove 302, the top plate 303, the screw hole 304, the height limiting plate 4, the rotating drum 401, the rotating block 402, the embedded groove 403, the nut block 404, the knob 5, the screw rod 501, the containing hole 502, the broken rod 6, the strong magnetic block 7, the reflective warning strip 8, the connecting plate 9, the through hole 901, the extension column 902, the height limiting prompt plate 903, the bolt 10.

[0027] It should be noted that these drawings and textual descriptions are not intended to limit the concept range of the utility model in any way, but illustrate the concept of the utility model for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] In road traffic management, height restriction barriers, as key facilities for restricting the passage of oversized vehicles, have a long history of design and application. Traditional height restriction devices mostly adopt fixed structures, such as rigid frames composed of columns and horizontal beams. These structures are usually fixed to both sides of the road surface by concrete bases or anchor bolts. Their core function is to force oversized vehicles to detour or stop by physically blocking them. However, due to the lack of a buffer mechanism, when vehicles force their way through, it is easy to cause damage to both the vehicle body and the height restriction barrier. Especially in scenarios such as freight lanes or bridge entrances, frequent impacts may cause deformation or even collapse of the height restriction structure, which not only increases maintenance costs but may also cause secondary accidents. To solve this problem, some improved height restriction barriers have begun to introduce movable parts, such as hinged beams or spring return devices. These designs allow the beam to rotate within a certain angle to buffer the impact, but the return accuracy is poor and mechanical fatigue is prone to occur after long-term use, affecting functional stability.

[0031] With technological advancements, the application scenarios for height restriction barriers have gradually expanded to urban tunnels, underground parking garage entrances, and temporary construction areas, placing higher demands on the flexibility of the devices. For example, liftable height restriction barriers achieve height adjustment through hydraulic or electric drive, adapting to traffic flow restriction needs at different times. However, they rely on external power supply and have complex structures, potentially failing to respond promptly in the event of power outages or equipment malfunctions, posing safety hazards. Furthermore, some height restriction devices attempt to combine sensors and alarm systems, using laser ranging or pressure sensing to detect vehicle height in real time and trigger warning signals. While this approach improves proactive warning capabilities, the high installation costs and subsequent maintenance difficulties limit its widespread adoption.

[0032] Regarding material and structural optimization, existing technologies commonly use steel or aluminum alloys as the main materials to balance strength and weight. Some designs add a rubber buffer layer or energy-absorbing blocks to the surface of the beam to try to reduce the impact force during a collision. However, these passive buffer materials are prone to wear or detachment after repeated impacts and cannot achieve controlled fracture to release impact energy. Meanwhile, the warning function of height restriction poles is mainly achieved by painting reflective paint or hanging warning signs. Although they can provide some visual guidance during the day, their visibility is significantly reduced at night or in rainy or foggy weather, making it difficult to effectively prevent accidental collisions. Some high-end designs introduce LED displays or flashing light strips as a supplement, but the additional circuitry makes the structure more complex and has insufficient waterproof and dustproof performance.

[0033] To address the ease of maintenance of height restriction barriers, existing technologies primarily employ bolted connections or welding for fixation. For example, the crossbeams and columns are secured with flange bolts, facilitating disassembly and replacement, but repeated disassembly and reassembly can lead to loosening of the connections. While welded structures offer strong stability, they present challenges for later maintenance. Furthermore, traditional height restriction barriers often require complete replacement or large-scale repairs after impact, such as straightening deformed columns or re-welding broken crossbeams. This is not only time-consuming and labor-intensive but may also lead to traffic control loopholes due to device malfunctions during maintenance. To address these issues, some designs have attempted to use modular components, such as quickly replaceable plug-in crossbeams or prefabricated assembly bases, but the connection strength and long-term durability between modules still require further verification.

[0034] In the design of rotary damping mechanisms, existing technologies mostly rely on simple hinge or pivot structures. For example, one end of the beam is connected to the column via a bearing, allowing it to rotate around the axis to release impact energy. However, such designs lack angular limiting functions, and the beam may collide with surrounding structures due to excessive rotation, thus increasing the risk of damage. Furthermore, insufficient lubrication and rust prevention of rotating components can lead to increased rotational resistance, affecting the damping effect. Some solutions attempt to add dampers or limit blocks around the pivot, but this increases structural complexity, raises manufacturing costs, and requires higher construction precision.

[0035] From the perspective of integrating warning functions with the structure, existing height restriction information displays are mostly independent of the main structure. For example, installing signs on the side of pillars or spraying text on the ground are prone to information transmission failure due to limited viewing angles or dirt. A few designs have attempted to fix the warning panels directly to the crossbeams, but the long-distance recognition effect is limited by installation height and size. In addition, traditional reflective materials are prone to glare in strong light or backlighting environments, which can interfere with the driver's judgment. Although some studies have proposed using dynamic display or projection technology to improve the warning effect, their reliability and environmental adaptability still need to be improved.

[0036] Regarding the basic fixed structure, traditional height restriction poles rely heavily on thick base plates and dense anchor bolts for stability, such as using a steel plate welded base embedded in concrete. While this design can withstand significant impact, the installation process requires damaging the road surface and is difficult to relocate, limiting its application in temporary control scenarios. Lightweight designs attempt to use thin base plates with diagonal bracing for reinforcement, but the base is prone to loosening under strong winds or continuous vibration. Furthermore, the connection between the support column and the base is a stress concentration area, which is prone to fatigue cracks under long-term alternating loads. The simple welding or bolt connections in traditional solutions are insufficient to effectively distribute stress, leading to a shortened structural lifespan.

[0037] In summary, while current height restriction pole technology is relatively mature in terms of basic functionality, it still has significant shortcomings in areas such as the controllability of the buffer mechanism, ease of maintenance, integrated warning effect, and structural durability. For example, the rigid structure lacks an energy release path, making it vulnerable to damage; the complex drive system relies on external energy and has a high failure rate; the separation of warning signs from the main structure affects information transmission efficiency; and the fixed base limits the flexible deployment of the device. These deficiencies collectively restrict the effective application of height restriction poles in diverse traffic scenarios, necessitating breakthroughs through structural innovation and functional integration.

[0038] Please see Figures 1-4 As shown, this embodiment provides a height restriction pole for traffic control of over-height vehicles, including: a broken pole 6 and two fixed bases, a support column 3 welded to the upper part of the fixed base, an angle limiting component provided on the upper end face of the support column 3, and a warning component provided on the upper part of the angle limiting component;

[0039] The angular limiting component is rotatably fitted with a rotating cylinder 401. A height limiting plate 4 is welded to the side of the rotating cylinder 401. Two embedded grooves 403 are provided on the side of the height limiting plate 4 away from the rotating cylinder 401. A strong magnetic block 7 is installed in the embedded groove 403. A nut block 404 is welded to the upper side of the height limiting plate 4. A rotating component is threaded into the nut block 404. Both rotating components have receiving holes 502 on their opposite inner end faces. The two ends of the broken rod 6 are located in the two receiving holes 502 respectively.

[0040] One application of this embodiment is as follows: When an oversized vehicle collides with the height restriction plate 4, the fracture rod 6 bears the tensile force. When the impact force exceeds a set value, the fracture rod 6 breaks in the middle. After the breakage, the height restriction plate 4 rotates to allow passage and avoidance. Afterwards, the staff can rotate the height restriction plate 4 to reset it, and the two height restriction plates 4 can be temporarily connected by the attraction of the strong magnetic block 7. When replacing the fracture rod 6, the operator rotates the rotating part to adjust the distance between the two receiving holes 502, and reinserts the two ends of the new fracture rod 6 into the receiving holes 502 to complete the replacement. Then, the rotating part is rotated in the opposite direction to bring the two receiving holes 502 closer together to limit the fracture rod 6. It should be noted that all electrical equipment involved in this application can be powered by a battery or an external power source.

[0041] The rotating drum 401, in conjunction with the angle limiting component, allows the height limit plate 4 to rotate around its axis for cushioning when impacted. Simultaneously, the fracture rod 6 bears the tensile force and breaks when the limit is exceeded, facilitating the rapid release of the height limit plate 4 to avoid impact and reducing the risk of overall structural damage. This ensures that impacts from both sides of the height limit plate 4 achieve the same effect. The height limit plate 4 can be temporarily connected by the attraction between the strong magnetic blocks 7. The spacing of the receiving hole 502 can be adjusted by the threaded engagement of the nut block 404 and the rotating component, facilitating the replacement of the fracture rod 6. Furthermore, the fracture rod 6 can be replaced with one of suitable material as needed, improving maintenance efficiency and structural reusability while reducing maintenance costs.

[0042] like Figure 4 As shown, the rotating component in this embodiment includes a screw 501 and a nut block 404 threadedly fitted around the screw 501. Both screws 501 have knobs 5 on their opposite outer end faces. The nut block 404 is located between the two knobs 5. A receiving hole 502 is located on the end face of the screw 501 away from the knobs 5. By using the threaded fit between the screw 501 and the nut block 404, combined with the knobs 5 providing a manual operation fulcrum, the spacing between the receiving holes 502 on both sides can be adjusted by rotating the screw 501, improving the ease of replacing the broken rod 6 and reducing the complexity of adjustment.

[0043] like Figure 1 , 3 As shown, reflective warning strips 8 are glued to both sides of the height restriction plate 4 in this embodiment. The reflective warning strips 8 improve the visual recognition of the height restriction plate 4 at night or in low light conditions, making it easier for drivers to identify the position of the height restriction plate 4 in advance and reducing the probability of vehicle collision.

[0044] like Figure 2 , 3 As shown, the angle limiting component in this embodiment includes a shaft 301 disposed on the upper end face of the support column 3, a rotating cylinder 401 rotatably fitted around the shaft 301, a top plate 303 corresponding to the warning component disposed on the upper end face of the shaft 301, the warning component disposed on the upper end face of the top plate 303, and the rotating cylinder 401 located between the top plate 303 and the support column 3. By adopting the rotational fit between the shaft 301 and the rotating cylinder 401, combined with the axial limiting of the rotating cylinder 401 by the top plate 303, the stability of the rotation of the height limiting plate 4 is improved.

[0045] like Figure 2 , 3 As shown, the shaft 301 in this embodiment has an arc-shaped groove 302 on its side, and the inner wall of the rotating cylinder 401 has a rotating block 402. The rotating block 402 is rotatably fitted in the arc-shaped groove 302. The rotation angle range of the rotating block 402 is 180 degrees. By cooperating with the rotating block 402 through the arc-shaped groove 302, the rotation angle of the rotating cylinder 401 is constrained, ensuring that the height limiting plate 4 rotates only within a fixed angle range, thereby improving the angle limiting accuracy.

[0046] likeFigure 2 As shown, the warning device in this embodiment includes a connecting plate 9 disposed on the upper end face of the top plate 303. An extension column 902 is welded to the upper end face of the connecting plate 9. A height limit warning board 903 is welded to the upper part of the extension column 902. The information of the height limit warning board 903 is raised to a conspicuous height by the extension column 902, making it easy for the driver to observe from a distance and improving the traffic warning effect.

[0047] like Figure 2 As shown, the connecting plate 9 in this embodiment is provided with multiple through holes 901 in a vertical direction. The through holes 901 penetrate the connecting plate 9 and are located on the side of the extension column 902. The upper end face of the top plate 303 is provided with screw holes 304 corresponding to the through holes 901. Multiple bolts 10 are provided on the top plate 303. The lower part of the bolt 10 penetrates the through holes 901 and is threaded into the screw holes 304. By cooperating with the screw holes 304 through the through holes 901, the bolts 10 can be used to fix the connecting plate 9 to the top plate 303, thereby improving the installation flexibility and maintenance convenience.

[0048] like Figure 1 As shown, the fixed base of this embodiment includes a base plate 1 welded to the lower end face of the support column 3. The base plate 1 is provided with a plurality of fixing holes 101 vertically, and the fixing holes 101 penetrate the base plate 1. A plurality of reinforcing ribs 2 are welded on the base plate 1. The reinforcing ribs 2 are welded to the side of the support column 3. The base plate 1 and the support column 3 are connected by the reinforcing ribs 2, which enhances the overall bending resistance of the fixed base, reduces the risk of the support column 3 root fracture due to vibration or impact during long-term use, and improves the structural durability.

[0049] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A height restriction pole for traffic control of oversized vehicles, characterized in that, include: The broken rod (6) and two fixed bases are provided. A support column (3) is welded to the upper part of the fixed base. An angle limiting component is provided on the upper end face of the support column (3). A prompting component is provided on the upper part of the angle limiting component. The angular limiting component is rotatably fitted with a rotating cylinder (401) on its periphery. A height limiting plate (4) is welded to the side of the rotating cylinder (401). Two embedded grooves (403) are provided on the side of the height limiting plate (4) away from the rotating cylinder (401). A strong magnetic block (7) is installed in the embedded groove (403). A nut block (404) is welded to the upper side of the height limiting plate (4). A rotating component is threaded in the nut block (404). Both rotating components have receiving holes (502) on their opposite inner end faces. The two ends of the broken rod (6) are located in the two receiving holes (502) respectively.

2. The height restriction pole for traffic control of oversized vehicles according to claim 1, characterized in that, The rotating component includes a screw (501), a nut block (404) threadedly fitted on the circumference of the screw (501), and a knob (5) on the opposite outer end face of both screws (501). A receiving hole (502) is located on the end face of the screw (501) away from the knob (5).

3. A height restriction pole for traffic control of oversized vehicles according to claim 1, characterized in that, The height restriction board (4) has reflective warning strips (8) glued to both sides.

4. A height restriction pole for traffic control of oversized vehicles according to claim 1, characterized in that, The angle limiting component includes a shaft (301) on the upper end face of the support column (3), a rotating cylinder (401) rotatably fitted around the shaft (301), and a top plate (303) corresponding to the prompting component on the upper end face of the shaft (301).

5. A height restriction pole for traffic control of oversized vehicles according to claim 4, characterized in that, The shaft (301) has an arc groove (302) on its side, and the inner wall of the rotating cylinder (401) has a rotating block (402) on its side, which rotates and fits in the arc groove (302).

6. A height restriction pole for traffic control of oversized vehicles according to claim 4, characterized in that, The warning device includes a connecting plate (9) set on the upper end face of the top plate (303), an extension column (902) welded to the upper end face of the connecting plate (9), and a height limit warning plate (903) welded to the upper part of the extension column (902).

7. A height restriction pole for traffic control of oversized vehicles according to claim 6, characterized in that, The connecting plate (9) is provided with multiple through holes (901) in the vertical direction. The upper end face of the top plate (303) is provided with screw holes (304) corresponding to the through holes (901). Multiple bolts (10) are provided on the top plate (303). The lower part of the bolts (10) passes through the through holes (901) and is threaded in the screw holes (304).

8. A height restriction pole for traffic control of oversized vehicles according to claim 1, characterized in that, The fixed base includes a base plate (1) welded to the lower end face of the support column (3), and the base plate (1) is provided with multiple fixing holes (101) vertically.

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