Road guardrail device

Abstract

The utility model discloses a road guardrail device, and belongs to the technical field of road guardrails. The highway guardrail device comprises a plurality of wave-shaped beam plates, end heads, stand columns and connecting pieces. The wave-shaped beam plates are connected in pairs in the horizontal direction; the ends are arranged at the two ends of the highway guardrail device. The wave-shaped beam plates are connected with the stand columns through connecting pieces; and the thicknesses of the wave-shaped beam plate, the upright post and the connecting frame are 1.3-3.9 mm. According to the highway guardrail device, the positions, connection relations and materials of the wave-shaped beam plates, the ends, the stand columns and the connecting pieces are limited, and on one hand, the protection effect of the highway guardrail device is improved; on the other hand, according to the stainless steel guardrail with the same anti-collision level, the steel consumption of the guardrail is reduced, the thickness is reduced, the material consumption is reduced, and the construction cost of the highway guardrail is reduced; the road guardrail device is light, green and convenient to transport, install and recycle, the cold resistance, corrosion resistance and mechanical property of the road guardrail device are improved, the safety coefficient is increased, the service life is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present application relates to a highway guardrail device, belonging to the technical field of road guardrails. Background Art

[0002] A corrugated guardrail is a guardrail structure composed of splicing corrugated guardrail plates to form a crossbar and supported by columns. When a vehicle accidentally yaws and deviates from the road edge, the corrugated guardrail collides with the vehicle. On the one hand, it absorbs and buffers the kinetic energy of the vehicle, thereby braking the vehicle to reduce its speed. On the other hand, the corrugated guardrail plate corrects the driving direction of the vehicle, thus avoiding serious safety accidents caused by the vehicle leaving the road.

[0003] The corrugated guardrails in the prior art are generally made of carbon steel or galvanized steel plates. Carbon steel is a traditional guardrail material. For example, in the national standard documents "GB / T 31439.1-2015 Corrugated Beam Steel Guardrails - Part 1: Two-Wave Corrugated Beam Steel Guardrails" and "GB / T 31439.1-2015 Corrugated Beam Steel Guardrails - Part 2: Three-Wave Corrugated Beam Steel Guardrails", it is stipulated that the carbon steels that can be used for the corrugated beam plates of the guardrails are Q195, Q215, and Q235. Among them, Q235 has the highest strength and is also the steel grade widely used for guardrail steels at present.

[0004] However, the strength grade and related properties of Q235 are already difficult to meet the needs of social development. Moreover, in order to meet the requirements of the relevant mechanical strengths of the guardrails, the above two national standard documents also stipulate that the thickness standard of the existing corrugated beam plates of the guardrails is 3 mm or 4 mm, and the thickness of the columns and the connecting parts including brackets or anti-collision blocks is 4.5 mm. Therefore, the annual steel consumption of highway guardrails exceeds 5 million tons, the steel consumption is huge, and the traditional carbon steel guardrails have poor corrosion resistance, greatly reducing their service life; for the corrugated guardrails made of galvanized steel plates, steps such as pickling, galvanizing, passivation, and plastic coating are also required during the production process, resulting in relatively large pollution emissions, and the construction is highly dangerous. When recycling, it is necessary to polish the zinc powder, which is difficult to recycle and causes very serious pollution, which is very unfavorable to the production goal of energy conservation and emission reduction. In addition, the quality of the corrugated guardrails on the market is mixed and the structure is complex, causing certain troubles for the installation of the corrugated guardrails. Moreover, the specifications and quality of the corrugated guardrails on the market are not uniform, which is very likely to cause secondary injuries in case of accidents and damage the safety of life and property. Summary of the Utility Model

[0005] To solve the above problems, the present application proposes a highway guardrail device, specifically defining the positional relationship and connection relationship among corrugated beam plates, end heads, columns, and connectors, and further defining their materials. On the one hand, it is beneficial to improve the protection effect of the highway guardrail device; on the other hand, while its safety performance meets the relevant national standards, the thickness is reduced. For stainless steel guardrails of the same anti-collision level, the steel consumption of the guardrail is reduced, the thickness is thinned, the material consumption is greatly reduced, and the construction cost of the highway guardrail is reduced; the highway guardrail device is made lightweight and green, facilitating transportation, installation, and recycling. At the same time, its cold resistance and corrosion resistance are greatly improved, effectively increasing its service life and greatly reducing the maintenance cost.

[0006] According to one aspect of the present application, a highway guardrail device is provided, including a plurality of corrugated beam plates, end heads, columns, and connectors; the corrugated beam plates are connected pairwise in the horizontal direction; the end heads are arranged at both ends of the highway guardrail device; the columns are arranged vertically, and the corrugated beam plates are connected to the columns through the connectors; the connectors and the corrugated beam plates are arranged on the sides of the columns; the corrugated beam plates, columns, and connectors are all made of stainless steel; the end heads are made of Q235 or stainless steel; the thicknesses of the corrugated beam plates, columns, and connecting brackets are 1.3 mm - 3.9 mm.

[0007] Specifically, the highway includes expressways, national highways, provincial highways, or rural roads.

[0008] Optionally, the connector includes a bracket, a shock absorber block, or an aircraft fin.

[0009] Preferably, the connector is a bracket.

[0010] Optionally, the corrugated beam plate is provided with a splicing component for splicing the corrugated beam plates; the splicing component includes splicing bolts and splicing screw holes, and the splicing screw holes are arranged at both ends of the corrugated beam plate.

[0011] Optionally, the corrugated beam plate is provided with a connecting component for connecting the corrugated beam plate and the connector, the connecting component includes connecting bolts and connecting screw holes, and the connecting screw holes are arranged in the middle of the corrugated beam plate.

[0012] Optionally, the corrugated beam plate is a two-wave corrugated beam plate or a three-wave corrugated beam plate; the column is a round column or a square column; a column cap is arranged on the column.

[0013] Optionally, the end head includes a transition section and an arc section, and the transition section is connected to the corrugated beam plate.

[0014] Optionally, the height of the column is 700 mm - 2700 mm; the wave depth of the corrugated beam plate is 80 mm - 90 mm; the length of the corrugated beam plate is 2120 mm - 4500 mm; the width of the corrugated beam plate is 300 mm - 520 mm.

[0015] Preferably, the size of the corrugated beam plate is 4320 mm × 310 mm × 85 mm × 1.39 mm; the size of the connecting piece is 300 mm × 70 mm × 2.50 mm; the size of the column is φ114 mm × 2.50 mm × 2100 mm.

[0016] Optionally, an arc section is provided in the middle of the connecting piece to fit the side surface of the column.

[0017] Optionally, a plurality of alarm devices are provided above the corrugated beam plate. The alarm devices include warning lights, signal receivers, horns and sensors, and the warning lights, signal receivers, horns and sensors are electrically connected.

[0018] Optionally, a reflective sticker is provided on the surface of the end head.

[0019] The beneficial effects that this application can produce include but are not limited to:

[0020] 1. For a highway guardrail device provided by this application, the positional relationship and connection relationship between the corrugated beam plate, the end head, the column and the connecting piece are specifically defined, and their materials are further defined. On the one hand, it is beneficial to improve the protection effect of the highway guardrail device; on the other hand, while its safety performance meets the relevant national standards, the thickness is reduced. For stainless steel guardrails of the same anti-collision level, the steel consumption of the guardrail is reduced, the thickness is thinned, the material consumption is greatly reduced, and the construction cost of the highway guardrail is reduced; the highway guardrail device is made lightweight and green, which is convenient for transportation, installation and recycling. At the same time, its cold resistance, corrosion resistance, tensile strength, yield strength and elongation at break are all significantly improved, with a higher safety factor, effectively improving its service life and greatly reducing the maintenance cost.

[0021] 2. For a highway guardrail device provided by this application, the splicing between the corrugated beam plates is realized by setting the splicing assembly, and the corrugated beam plate and the connecting piece are connected by setting the connecting assembly. By setting the splicing screw holes, splicing bolts, connecting screw holes and connecting bolts, the connection structure is simplified, which is convenient for installation, disassembly and recycling, etc.

[0022] 3. A highway guardrail device provided by the present application defines the dimensions of the corrugated beam plates, connectors, and columns, so as to further realize the lightweight of the highway guardrail device on the basis of not affecting its protection performance; on the other hand, it can reduce the material consumption, make the corrugated beam plates thinner, save materials, facilitate installation, and improve the safety factor of production and installation operations.

[0023] 4. A highway guardrail device provided by the present application, by setting an alarm device, on the one hand, when the highway guardrail device is impacted, after the sensor senses, the alarm lamp and the horn work to remind passing vehicles to pay attention to safety; in addition, a signal receiver is also provided, and through the signal receiver, the alarm lamps and horns of the rear section where an accident occurs can be controlled to work to remind subsequent vehicles to pay attention to avoiding the accident section.

[0024] 5. A highway guardrail device provided by the present application has a wide range of applications and can be applied to expressways, national highways, provincial highways or rural roads, which is convenient for popularization.

[0025] 6. A highway guardrail device provided by the present application also has the following beneficial effects: (1) The traditional carbon steel production process requires processes such as pickling, galvanizing, passivation, and plastic spraying and dipping, and the pollution emissions are relatively serious. The highway guardrail device provided by the present application has zero emissions and no pollution during the production process; (2) The highway guardrail device provided by the present application reduces the steel consumption of the guardrail with the same anti-collision level as the stainless steel guardrail, thins the thickness, greatly reduces the material consumption, realizes lightweight, reduces costs, and reduces the transportation pressure; (3) The production and installation structure of the highway guardrail device provided by the present application is simple, and it is roll-formed or molded, shortening the production and installation cycle; (4) Compared with the prior art, the mechanical properties of the highway guardrail device provided by the present application are greatly improved. Among them, the yield strength is increased by 392 MPa, and the increase rate is 89%; the tensile strength is increased by 310 MPa, and the increase rate is 53%; the elongation after fracture is increased by 30.8%, and the increase rate is 93%. It has a higher safety factor; (5) The highway guardrail device provided by the present application is resistant to low temperatures. As the temperature decreases to minus 60 °C, its impact toughness does not decrease significantly, while the performance of the guardrail Q235 in the prior art decreases significantly with the decrease of temperature and has no protection effect at minus 10 °C and is not applicable in cold regions; (6) The highway guardrail device provided by the present application has good corrosion resistance. The service life of the traditional galvanized carbon steel guardrail is about 15 years, and the service life of the highway guardrail device provided by the present application can reach at least 45 years, reducing the maintenance cost; (7) The highway guardrail device provided by the present application does not undergo operations such as galvanizing, simplifies the connection structure, has excellent performance, is convenient for recycling, and realizes a high recycling rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0027] Figure 1 It is a schematic side sectional view of a guardrail device according to an embodiment of the present application;

[0028] Figure 2 It is a schematic top view of a bracket of a guardrail device according to an embodiment of the present application;

[0029] Figure 3 It is a schematic top view of an end of a guardrail device according to an embodiment of the present application;

[0030] Figure 4 It is a schematic front view of a corrugated beam plate of a guardrail device according to an embodiment of the present application.

[0031] List of components and reference numerals:

[0032] 1. Corrugated beam plate; 2. End; 3. Column; 4. Bracket; 5. Splice screw hole; 6. Connecting screw hole; 7. Transition section; 8. Arc section; 9. Column cap; 10. Splice bolt; 11. Connecting bolt. Detailed implementation manners

[0033] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail by way of examples in conjunction with the accompanying drawings of the specification.

[0034] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present application, the following will further describe the present application in detail in conjunction with the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0035] In the following description, many specific details are set forth in order to fully understand the present application. However, the present application can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0036] In addition, in the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0038] In the present application, unless otherwise clearly specified and defined, terms such as "installed", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0039] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0040] Reference Figures 1 - 4 , an embodiment of the present application discloses a highway guardrail device, including a plurality of corrugated beam plates 1, end heads 2, columns 3, and connectors; the corrugated beam plates 1 are connected pairwise in the horizontal direction; the end heads 2 are arranged at both ends of the highway guardrail device; the columns 3 are arranged vertically, and the corrugated beam plates 1 are connected to the columns 3 through the connectors; the connectors and the corrugated beam plates 1 are arranged on the sides of the columns 3; the corrugated beam plates 1, the columns 3, and the connectors are all made of stainless steel; the end heads 2 are made of Q235 or stainless steel; the thicknesses of the corrugated beam plates, the columns, and the connecting frames are 1.3 mm - 3.9 mm.

[0041] Specifically, the positional relationship and connection relationship among the corrugated beam plate 1, the end 2, the column 3 and the connecting piece are defined, and their materials are further defined. On the one hand, it is beneficial to improve the protection effect of the highway guardrail device; on the other hand, while its safety performance meets the relevant national standards, the thickness is reduced. For stainless steel guardrails of the same anti-collision level, the steel consumption of the guardrail is reduced, the thickness is thinned, the material consumption is greatly reduced, and the construction cost of the highway guardrail is reduced; the lightweight and greening of the highway guardrail device are realized, which is convenient for transportation, installation and recycling. At the same time, its cold resistance, corrosion resistance, tensile strength, yield strength and elongation at break are all significantly improved, with a higher safety factor, effectively improving its service life and greatly reducing the maintenance cost.

[0042] Specifically, the present application does not limit the number of corrugated beam plates 1, and those skilled in the art can select according to the actual situation.

[0043] Specifically, the corrugated beam plate, the column and the connecting piece of the present application are all made of stainless steel; using stainless steel material can greatly reduce the thickness of the corrugated beam plate 1. Under the same thickness, the corrugated beam plate 1 made of stainless steel has better protection performance than the corrugated beam plate 1 made of low-carbon steel. At the same time, it has good corrosion resistance and can be directly used without surface galvanizing and painting treatment, zero emission, reducing environmental pollution, being convenient for transportation and recycling for reuse. Moreover, the tensile strength, yield strength and elongation at break of the corrugated beam plate, column and connecting piece made of stainless steel are all significantly improved; after the vehicle impacts the highway guardrail device, the present application has good extensibility and guiding performance, with a higher safety factor.

[0044] As an implementation manner, the connecting piece includes a connecting piece, an anti-blocking block or an airplane wing.

[0045] As a specific implementation manner, the connecting piece is a bracket 4.

[0046] As an implementation manner, the corrugated beam plate 1 is provided with a splicing component to splice the corrugated beam plate 1; the splicing component includes a splicing bolt 10 and a splicing screw hole 5, and the splicing screw hole 5 is arranged at both ends of the corrugated beam plate 1.

[0047] As an implementation manner, the corrugated beam plate 1 is provided with a connecting component to connect the corrugated beam plate 1 and the bracket 4. The connecting component includes a connecting bolt 11 and a connecting screw hole 6, and the connecting screw hole 6 is arranged in the middle of the corrugated beam plate 1.

[0048] Specifically, the splicing of the corrugated beam plates 1 is realized by setting the splicing component, and the corrugated beam plate 1 and the bracket 4 are connected by setting the connecting component. By setting the splicing screw hole 5, the splicing bolt 10, the connecting screw hole 6 and the connecting bolt 11, the connection structure is simplified, which is convenient for installation, disassembly and recycling, etc.

[0049] Specifically, this application does not make specific limitations on the number of splicing screw holes 5 and connecting screw holes 6, and those skilled in the art can make selections according to actual situations.

[0050] As an implementation manner, the corrugated beam plate 1 is a two-wave corrugated beam plate or a three-wave corrugated beam plate; the column 3 is a round column or a square column; a column cap 9 is provided on the column 3.

[0051] As a specific implementation manner, the column 3 is a round column 3.

[0052] Specifically, the nominal diameter of the column cap 9 should be 123 mm ± 1 mm, and the thickness should be 1.39 mm ± 0.1 mm.

[0053] As an implementation manner, the end 2 includes a transition section 7 and an arc section 8, and the transition section 7 is connected to the corrugated beam plate 1.

[0054] Specifically, the setting of the end 2 eliminates the hidden danger of the corrugated beam plate 1 inserting into the vehicle. The arc section 8 of the end 2 can absorb energy during a collision, reduce the driving speed of the vehicle, and mitigate the injuries caused by the accident.

[0055] Specifically, the transition section 7 is bolted to the corrugated beam plate 1.

[0056] As an implementation manner, the height of the column is 2100 mm; the wave depth of the corrugated beam plate is 85 mm; the length of the corrugated beam plate is 4320 mm; the width of the corrugated beam plate is 310 mm; the height of the column is 2100 mm.

[0057] As a specific implementation manner, the dimensions of the corrugated beam plate 1 are 4320 mm × 310 mm × 85 mm × 1.39 mm; the dimensions of the bracket 4 are 300 mm × 70 mm × 2.50 mm; the dimensions of the column 3 are φ114 mm × 2.50 mm × 2100 mm.

[0058] Specifically, this application limits the dimensions of the corrugated beam plate 1, the bracket 4, and the column 3, so as to further achieve the lightweight of the highway guardrail device on the basis of not affecting its protection performance; on the other hand, the material consumption can be reduced, the corrugated beam plate 1 can be made thinner, materials can be saved, installation is facilitated, and the safety factor of production and installation operations can be improved.

[0059] As an implementation manner, an arc section 8 is provided in the middle of the bracket 4 to fit with the side surface of the column 3.

[0060] Specifically, an arc section 8 is provided in the middle of the bracket 4 to fit with the side surface of the round column 3, so that the installation of the bracket 4 is more stable.

[0061] As an embodiment not shown, a plurality of alarm devices are provided above the corrugated beam plate 1. The alarm devices include warning lights, signal receivers, horns, and sensors, and the warning lights, signal receivers, horns, and sensors are electrically connected to each other.

[0062] Specifically, by providing the alarm devices, on the one hand, when the highway guardrail device is impacted, after the sensor senses, the alarm lights and the horn work to remind passing vehicles to pay attention to safety; in addition, a signal receiver is also provided. Through the signal receiver, the alarm lights and the horn of the rear section where an accident occurs can be controlled to work to remind subsequent vehicles to avoid the accident section.

[0063] As an embodiment not shown, a reflective sticker is provided on the surface of the end 2.

[0064] Specifically, by providing the reflective sticker to warn the driver. Especially when driving at night, the light is relatively dim and it is difficult to accurately judge the road distance and road conditions. The reflective sticker can warn the driver.

[0065] Each embodiment in this specification is described in a progressive manner. The same or similar parts between the embodiments can be referred to each other, and the differences between each embodiment and other embodiments are emphasized. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

[0066] The above description is only for the embodiments of this application and is not intended to limit this application. For those skilled in the art, various changes and modifications can be made to this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the scope of the claims of this application.

Claims

1. A highway guardrail device, characterized in that, It includes several corrugated beam plates, end heads, columns and connectors; the corrugated beam plates are connected pairwise in the horizontal direction; the end heads are arranged at both ends of the highway guardrail device; the columns are arranged vertically, and the corrugated beam plates are connected to the columns through the connectors; the connectors and the corrugated beam plates are arranged on the sides of the columns; the corrugated beam plates, columns and connectors are all made of stainless steel; the end heads are made of Q235 or stainless steel; the thicknesses of the corrugated beam plates, columns and connection brackets are 1.3 mm - 3.9 mm.

2. The highway guardrail device according to claim 1, characterized in that, The connector includes a bracket, a blocking block or an aircraft wing.

3. The highway guardrail device according to claim 1, characterized in that, The corrugated beam plate is provided with a splicing component for splicing the corrugated beam plates; the splicing component includes a splicing bolt and a splicing screw hole, and the splicing screw holes are arranged at both ends of the corrugated beam plate.

4. The highway guardrail device according to claim 1, characterized in that, The corrugated beam plate is provided with a connection component for connecting the corrugated beam plate and the connector, and the connection component includes a connection bolt and a connection screw hole, and the connection screw holes are arranged in the middle of the corrugated beam plate.

5. The highway guardrail device according to claim 1, characterized in that, The corrugated beam plate is a two-wave corrugated beam plate or a three-wave corrugated beam plate; the column is a round column or a square column; a column cap is arranged on the column.

6. The highway guardrail device according to claim 1, characterized in that, The end head includes a transition section and an arc section, and the transition section is connected to the corrugated beam plate.

7. The highway guardrail device according to claim 1, characterized in that, The height of the column is 700 mm - 2700 mm; the wave depth of the corrugated beam plate is 80 mm - 90 mm; the length of the corrugated beam plate is 2120 mm - 4500 mm; the width of the corrugated beam plate is 300 mm - 520 mm.

8. The highway guardrail device according to claim 1, characterized in that, The middle part of the connector is provided with an arc section to fit with the side surface of the column.

9. A highway guardrail device according to claim 1, characterized in that, Several alarm devices are arranged above the corrugated beam plate, and the alarm devices include warning lights, signal receivers, horns and sensors, and the warning lights, signal receivers, horns and sensors are electrically connected.

10. A highway guardrail device according to claim 8, characterized in that, The surface of the end head is provided with a reflective sticker.

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