A high-speed guardrail

Abstract

The present invention discloses a high-speed guardrail, which comprises a plurality of interconnected guardrail monomers. Each guardrail monomer includes a column, a buffer rail and a connecting component. One end of the buffer rail is assembled on the column through the connecting component, and the other end of the buffer rail is assembled on the connecting component of an adjacent guardrail monomer. The buffer rail includes a first buffer tube, a second buffer tube, a first curved buffer plate and a second curved buffer plate. One side of the first curved buffer plate is fixedly connected to the first buffer tube, and the other side of the first curved buffer plate is fixedly connected to the second buffer tube. One side of the second curved buffer plate is fixedly connected to the first buffer tube, and the other side of the second curved buffer plate is fixedly connected to the second buffer tube. Among them, both the first curved buffer plate and the second curved buffer plate protrude towards the direction for bearing the impact force. The present invention can improve the volatilization efficiency of gas, save electricity cost and reduce formaldehyde waste, and is applicable to converting liquid pollutants into gas pollutants.

Description

Technical Field

[0001] The present invention relates to a guardrail, specifically a highway guardrail. Background Art

[0002] When a large accident occurs on a highway, the guardrail plays a crucial role in reducing secondary injuries. Because the guardrail can not only prevent the vehicle from flying out of the highway due to inertia under a violent impact, but also absorb a certain amount of impact force and reduce the impact damage. The guardrail in the prior art includes a column and a corrugated plate horizontally arranged on the column. The corrugated plate is a single-layer corrugated structure. Although the corrugated structure can absorb a certain amount of impact force, the structural strength of the single-layer steel plate is small, the effect of buffering the impact force is poor, and it is easy to be broken by impact. Summary of the Invention

[0003] To solve the above deficiencies in the prior art, the present invention aims to provide a highway guardrail to achieve the purpose of increasing the structural strength and improving the effect of buffering the impact force.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A highway guardrail includes a plurality of interconnected guardrail units. Each guardrail unit includes a column, a buffer rail and a connecting component. One end of the buffer rail is assembled on the column through the connecting component, and the other end of the buffer rail is assembled on the connecting component of the adjacent guardrail unit. Each guardrail unit includes at least one buffer rail;

[0006] The buffer rail includes a first buffer tube, a second buffer tube, a first curved buffer plate and a second curved buffer plate; one side of the first curved buffer plate is fixedly connected to the first buffer tube, and the other side of the first curved buffer plate is fixedly connected to the second buffer tube. One side of the second curved buffer plate is fixedly connected to the first buffer tube, and the other side of the second curved buffer plate is fixedly connected to the second buffer tube. Among them, both the first curved buffer plate and the second curved buffer plate protrude towards the direction for bearing the impact force, and the first curved buffer plate bears the impact force earlier than the second curved buffer plate;

[0007] The space enclosed by the outer wall of the first buffer tube, the outer wall of the second buffer tube, the first curved buffer plate and the second buffer plate is the first buffer area; the hollow structure of the first buffer tube is the second buffer area; the hollow structure of the second buffer tube is the third buffer area.

[0008] As a limitation of the present invention, the connecting component includes a connecting sleeve and a fixing sleeve; the cross-section of the connecting sleeve is adapted to the cross-section of the buffer rail, so that the buffer rail is inserted into the connecting sleeve and fixed by a first positioning member; the connecting sleeve is fixed on the fixing sleeve through a second positioning member, and the fixing sleeve is sleeved and fixed on the column.

[0009] As a further limitation of the present invention, the fixed sleeve includes a fixed cylinder and a buffer cylinder which are fixedly connected; the fixed cylinder is sleeved and fixed on the column, and both sides of the connection part between the buffer cylinder and the fixed cylinder are recessed inward, and the connection sleeve is fixedly connected to the buffer cylinder; the hollow structure of the buffer cylinder is the fourth buffer area.

[0010] As another limitation of the present invention, the column is of a hollow structure, and reinforcing plates are fixedly provided at the positions of the third sides of each corner of the column, so that the cross-section of the column forms a honeycomb structure; the hollow structure of the column is the fifth buffer area.

[0011] As a limitation of the present invention, both the first buffer tube and the second buffer tube are circular tubes.

[0012] As a third limitation of the present invention, both the first curved buffer plate and the second curved buffer plate are semi-circular.

[0013] As a fourth limitation of the present invention, the first positioning member is a bolt, and the first positioning member passes through the connection sleeve, the first buffer tube and the second buffer tube.

[0014] Due to the adoption of the above technical solutions, compared with the prior art, the beneficial effects achieved by the present invention are:

[0015] (1) The present invention utilizes multiple hollow structures to construct multiple buffer areas, and the hollow structure of the guardrail that first contacts the object is a curved surface. When an object impacts on the curved surface, it is first in line or point contact, and then gradually becomes surface contact through the deformation of the curved surface to absorb the impact force. At the same time, the first buffer area of the hollow structure provides sufficient space for the deformation of the curved surface, which can further absorb the impact force and greatly improve the buffer effect; the structures of the first buffer tube and the second buffer tube being circular tubes not only constitute a buffer space but also provide a curved surface for absorbing the impact force through gradually transitional deformation, and the structure of the circular tube also increases the strength of the overall structure, improving the buffer effect while greatly enhancing the structural strength.

[0016] (2) The part of the buffer cylinder of the present invention connected to the fixed cylinder is recessed inward, which can provide a curved surface structure to better absorb the impact force. If it is a straight edge, the force will be transmitted along the straight surface and will break quickly, while the recessed inward structure will guide the force to contract inward first, absorbing a part of the force, which can effectively prevent the two sides of the guardrail from being broken and has a better effect of buffering the impact force.

[0017] (3) The structure of the column of the present invention is a honeycomb structure, which can not only provide a buffer space for deformation but also improve the structural strength of the column.

[0018] (4) The first connecting member of the present invention is vertically arranged, which can improve the strength of the connection part and withstand more impact force.

[0019] In summary, the present invention improves the effect of buffering impact force and enhances the overall structural strength, and is applicable to being enclosed on both sides of the road. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0021] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0022] Figure 2 is a three-dimensional structural schematic diagram of a single guardrail of an embodiment of the present invention;

[0023] Figure 3 is a three-dimensional structural schematic diagram of a buffer rail of an embodiment of the present invention;

[0024] Figure 4 is a three-dimensional structural schematic diagram of a connecting sleeve of an embodiment of the present invention;

[0025] Figure 5 is a three-dimensional structural schematic diagram of a fixing sleeve of an embodiment of the present invention;

[0026] Figure 6 is a top view structural schematic diagram of a column of an embodiment of the present invention.

[0027] In the figure: 1, column; 11, reinforcement plate; 2, buffer rail; 21, first curved buffer plate; 22, second curved buffer plate; 23, first buffer tube; 24, second buffer tube; 3, connecting sleeve; 4, fixing sleeve; 41, buffer cylinder; 42, fixing cylinder; 5, first positioning member; 6, second positioning member; 7, first plug; 8, second plug. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The preferred embodiments of the present invention will be described below in conjunction with the drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and understanding the present invention, and are not used to limit the present invention.

[0029] Embodiment A high-speed guardrail

[0030] As Figure 1 shown, this embodiment includes a number of interconnected single guardrails ( Figure 1 in which the connection of three single guardrails is shown), and by continuously connecting the single guardrails, a guardrail arranged along the length direction of the road is formed. As Figure 2As shown in the figure, the single guardrail includes a column 1, a buffer rail 2 and a connecting component. The column 1 is vertically arranged on the ground of the road, and the buffer rail 2 is horizontally arranged, and one end of it is assembled on the column 1 through the connecting component. When connecting two single guardrails, the other end of the buffer rail 2 is assembled on the connecting component of the adjacent single guardrail. At least one buffer rail 2 is arranged on each column 1, and multiple buffer rails 2 can be arranged according to the height to be protected.

[0031] The buffer rail 2 is horizontally arranged between two columns 1. When an accident occurs and a car hits the guardrail, the buffer rail 2 bears the main impact force and plays a decisive role in preventing the car from being thrown out of the road. The better the buffering performance of the buffer rail 2, the stronger the ability to absorb the impact force, which can greatly reduce the speed and intensity of the car impact. The greater the structural strength of the buffer rail 2, the smaller the possibility of the buffer rail 2 being broken and the smaller the possibility of the car being thrown out. Therefore, the present invention has conducted in-depth research on simultaneously ensuring the buffering performance and structural strength of the buffer rail 2 to reduce the secondary injury of accidents, which will be elaborated in detail below.

[0032] As Figure 3As shown, the buffer rail 2 includes a first buffer tube 23, a second buffer tube 24, a first curved buffer plate 21 and a second curved buffer plate 22. The first buffer tube 23 and the second buffer tube 24 are both circular tubes, and the first buffer tube 23 and the second buffer tube 24 are arranged at an interval up and down. Among them, both the first curved buffer plate 21 and the second curved buffer plate 22 protrude in the direction for bearing the impact force. In this embodiment, both the first curved buffer plate 21 and the second curved buffer plate 22 are semi-circular, and the diameter of the first curved buffer plate 21 is larger than that of the second curved buffer plate 22, so that the first curved buffer plate 21 bears the impact force earlier than the second curved buffer plate 22. One side of the first curved buffer plate 21 is fixedly connected to the first buffer tube 23, and the part where the first curved buffer plate 21 is connected to the first buffer tube 23 is located on the tangent line of the highest point of the first buffer tube 23 (this highest point refers to the highest point of the outer diameter of the first buffer tube 23 when the guardrail is vertically arranged on the ground). The other side of the first curved buffer plate 21 is fixedly connected to the second buffer tube 24, and the part where the other side of the first curved buffer plate 21 is connected to the second buffer tube 24 is located on the tangent line of the lowest point of the second buffer tube 24 (this lowest point refers to the lowest point of the outer diameter of the second buffer tube 24 when the guardrail is vertically arranged on the ground), that is, the first curved buffer plate 21 covers the outside of the first buffer tube 23 and the second buffer tube 24. One side of the second curved buffer plate 22 is fixedly connected to the first buffer tube 23, and the part where the second curved buffer plate 22 is connected to the first buffer tube 23 is located on the tangent line of the lowest point of the first buffer tube 23 (this lowest point refers to the lowest point of the outer diameter of the first buffer tube 23 when the guardrail is vertically arranged on the ground). The other side of the second curved buffer plate 22 is fixedly connected to the second buffer tube 24, and the part where the other side of the second curved buffer plate 22 is connected to the second buffer tube 24 is located on the tangent line of the highest point of the second buffer tube 24 (this highest point refers to the highest point of the outer diameter of the second buffer tube 24 when the guardrail is arranged on the ground).

[0033] As Figure 2 shown, the connection component includes a connection sleeve 3 and a fixed sleeve 4. The connection sleeve 3 is used to fix the buffer rail 2, fix the buffer rail 2 on the fixed sleeve 4, and the connection sleeve 3 is used to connect another buffer rail 2 on adjacent two guardrail monomers. The fixed sleeve 4 is sleeved on the column 1 and fixed by bolts. As Figure 4As shown, the connecting sleeve 3 of this embodiment has a D-shaped structure. The cross-section of the connecting sleeve 3 is adapted to the cross-section of the buffer rail 2. By "adapted" in this embodiment, it means that the outer surface of the first curved surface buffer plate 21 is adhered to the inner surface of the curved part of the connecting sleeve 3, and the inner surface of the vertical surface of the connecting sleeve 3 is adhered to the tangent line of the vertical connection of the first buffer tube 23 and the second buffer tube 24, so that the buffer rail 2 is inserted into the connecting sleeve 3 and fixed by the first positioning member 5. The first positioning member 5 is a bolt, and the bolt passes through the connecting sleeve 3, the first buffer tube 23 and the second buffer tube 24. The vertically arranged first positioning member 5 can withstand the lateral impact force and increase the overall structural strength of the buffer rail 2. The connecting sleeve 3 is fixed on the fixed sleeve 4 by the second positioning member 6. As Figure 5 shown, the fixed sleeve 4 includes a fixed cylinder 42 and a buffer cylinder 41. The fixed cylinder 42 is sleeved on the column 1 and fixed by bolts. The buffer cylinder 41 is located between the column 1 and the buffer rail 2. Both sides of the connection part of the buffer cylinder 41 and the fixed cylinder 42 are recessed inward, and the connecting sleeve 3 is fixed on the buffer cylinder 41 by bolts.

[0034] As Figure 6 shown, the column 1 is made of a square tube and has a hollow structure. Reinforcement plates 11 are fixedly provided at the third side position of each corner of the column 1, so that the cross-section of the column 1 forms a honeycomb structure. There are four reinforcement plates 11 provided on the column 1 in this embodiment, which are respectively arranged at the third side positions of the four corners of the column 1. The third side of each corner of the column 1 refers to: the hypotenuse of the triangle where the right-angled side of the column 1 is located.

[0035] A first plug 7 is provided at the top of the column 1 in this embodiment. Since the guardrail monomers on both sides are no longer connected to the buffer rail 2, a second plug 8 is provided on the connecting sleeve 3.

[0036] In this embodiment, five buffer areas are formed by setting curved surfaces, hollow structures, etc. Among them, the space enclosed by the outer wall of the first buffer tube 23, the outer wall of the second buffer tube 24, the first curved buffer plate 21 and the second curved buffer plate 22 is the first buffer area, which is also the area that bears the strongest impact force. The outside of this area is a relatively large curved surface. Since the first buffer area is relatively large, more impact force can be absorbed through deformation. The second buffer area and the third buffer area can absorb a part of the impact force through the deformation of the curved surface of the first buffer tube 23 and the deformation of the curved surface of the second buffer tube 24. The hollow area between the second curved buffer plate 22 and the inner wall of the connecting sleeve 3 can absorb a part of the impact force through the deformation of the second curved buffer plate 22. When the impact force is transmitted to the buffer cylinder 41 and the column 1, the fourth buffer area can absorb a part of the impact force through the deformation of the buffer cylinder 41. At the same time, the fifth buffer area can absorb a part of the impact force through the deformation of the column 1. Each part of the structure of this embodiment can absorb the impact force, and both sides of the first buffer tube 23 and the second buffer tube 24 are arc surfaces, and the reinforcing plate 11 in the column 1 increases the structural strength of the whole device, meeting the requirements of buffering the impact force and improving the structural strength at the same time.

[0037] When assembling the device, first sleeve the fixed cylinder 42 on the column 1 for fixation, then insert the buffer bar 2 into the connecting sleeve 3 for fixation, and then fix the connecting sleeve 3 and the buffer bar 2 together on the buffer cylinder 41 through bolts. When connecting the protection fence monomers in sequence, both ends of the connecting sleeve 3 are respectively inserted with two buffer bars 2, and the ends of the two buffer bars 2 are abutted against each other to realize the connection of multiple protection fence monomers.

[0038] It should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the above embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A high-speed guardrail, characterized by: It includes a plurality of mutually connected guardrail units, each guardrail unit including a column, a buffer bar and a connecting assembly, one end of the buffer bar is assembled on the column through the connecting assembly, and the other end of the buffer bar is assembled on the connecting assembly of the adjacent guardrail unit, and each guardrail unit includes at least one buffer bar; The buffer fence includes a first buffer tube, a second buffer tube, a first curved buffer plate, and a second curved buffer plate; one side of the first curved buffer plate is fixedly connected to the first buffer tube, and the other side of the first curved buffer plate is fixedly connected to the second buffer tube; one side of the second curved buffer plate is fixedly connected to the first buffer tube, and the other side of the second curved buffer plate is fixedly connected to the second buffer tube, wherein both the first curved buffer plate and the second curved buffer plate protrude in a direction for bearing the impact force, and the first curved buffer plate bears the impact force before the second curved buffer plate; The space enclosed by the outer wall of the first buffer tube, the outer wall of the second buffer tube, the first curved buffer plate, and the second buffer plate is the first buffer area; the hollow structure of the first buffer tube is the second buffer area; and the hollow structure of the second buffer tube is the third buffer area. The connecting assembly includes a connecting sleeve and a fixing sleeve; the cross section of the connecting sleeve is adapted to the cross section of the buffer fence, so that the buffer fence is inserted into the connecting sleeve and fixed by a first positioning member; the connecting sleeve is fixed to the fixing sleeve by a second positioning member, and the fixing sleeve is sleeved and fixed on the column; The fixed sleeve includes a fixed sleeve and a buffer sleeve that are fixedly connected; the fixed sleeve is sleeved and fixed on the column, both sides of the connection between the buffer sleeve and the fixed sleeve are recessed inward, and the connecting sleeve is fixedly connected to the buffer sleeve; the hollow structure of the buffer sleeve is the fourth buffer area; The column is a hollow structure, and a reinforcing plate is fixed at the third side position of each corner of the column, so that the cross section of the column forms a honeycomb structure; the hollow structure of the column is the fifth buffer area.

2. A high-speed guardrail according to claim 1, characterized in that: The first buffer tube and the second buffer tube are both circular tubes.

3. The high-speed guardrail according to claim 2, characterized in that: The first curved buffer plate and the second curved buffer plate are both semicircular.

4. The high-speed guardrail according to claim 1, characterized in that: The first positioning member is a bolt, and the first positioning member is passed through the connecting sleeve, the first buffer tube and the second buffer tube.

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