Traffic guardrail and method for preparing guardrail plate based on retired wind turbine blades

Abstract

The present invention belongs to the technical field of traffic protection, and in particular, relates to a traffic guardrail. The traffic guardrail includes a column, an anti-obstruction block, a splicing sleeve and a plurality of guardrail panels, wherein the anti-obstruction block is installed on the column, and the splicing sleeve is installed on the anti-obstruction block; the splicing sleeve includes a mounting plate, a first hook arranged at the upper end of the mounting plate, and a second hook arranged at the lower end of the mounting plate, and a clamping groove for clamping the guardrail panel is formed between the first hook, the second hook and the guardrail panel; the guardrail panel is made of retired wind turbine blades. In the present invention, the traffic guardrail has a simple structure, and the installation of two adjacent guardrail panels is convenient; and the guardrail panel has strong corrosion resistance, long service life, high strength, high rigidity and good energy absorption effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of composite traffic protection, and in particular relates to a traffic guardrail and a method for preparing a guardrail plate based on retired wind turbine blades. Background Art

[0002] Fiber reinforced composite materials are composed of continuous fibers and resin matrix. They have excellent properties such as high strength, light weight, corrosion resistance and fatigue resistance. They are widely used in shipbuilding, aerospace, wind power, construction, transportation, electronics and electrical fields. Large-scale consumption of composite materials is bound to bring severe waste disposal problems. Since wind power generation is a clean energy, my country has now deployed a large number of wind turbines to generate electricity using wind power; wind turbine blades are one of the core components of wind turbines. They have high requirements for materials, requiring not only high strength but also small mass. Carbon fiber reinforced composite laminates and glass fiber reinforced composite laminates have the advantages of high specific strength, high specific stiffness and high deformation energy compared to steel. Therefore, carbon fiber reinforced composite materials and glass fiber reinforced composite materials are the main materials for wind turbine blades. The blades of these wind turbines will be retired after a period of use. The current mainstream method for disposing retired wind turbine blades is natural landfill, but composite materials cannot be naturally degraded and will become potential organic pollutants.

[0003] For retired wind turbine blades, fiber-reinforced composite materials have good durability, so some wind turbine blade parts still have good mechanical properties and can be recycled. The physical recycling method has relatively low energy consumption, but using the cut and crushed particles as coarse and fine aggregates to prepare concrete will have a significant adverse effect on its compressive strength and other mechanical properties.

[0004] At present, the guardrail in the structure of traffic anti-collision guardrail is used as a direct force component when a car hits. At present, the main material of the guardrail is Q235 galvanized steel. The steel guardrail has the following main shortcomings: poor corrosion resistance, low strength, low rigidity and poor energy absorption effect.

[0005] In addition, with the continuous development of transportation tools, the construction of highways is also constantly extended. As a protective device on both sides of the highway, the traffic guardrail can not only remind car drivers to drive safely, but also prevent cars on the highway from falling off the highway. In the prior art, the guardrail plate of the traffic guardrail is usually made of a long rigid material, and the length of the guardrail plate is relatively long, and the connection between two adjacent guardrail plates and the column is also inconvenient. Summary of the invention

[0006] The present invention solves the technical problems in the prior art such as the inconvenient connection between two adjacent guardrail plates and columns and the poor treatment effect of retired fan blades, and provides a traffic guardrail and a method for preparing guardrail plates based on retired fan blades.

[0007] In order to solve the above technical problems, one embodiment of the present invention provides a traffic guardrail, including a column, an anti-obstruction block, a splicing sleeve and a plurality of guardrail plates, the anti-obstruction block is installed on the column, and the splicing sleeve is installed on the anti-obstruction block; the splicing sleeve includes a mounting plate, a first hook arranged at the upper end of the mounting plate, and a second hook arranged at the lower end of the mounting plate, and a clamping groove for clamping the guardrail plate is formed between the first hook, the second hook and the guardrail plate; the guardrail plate is made of retired wind turbine blades.

[0008] Optionally, a first mounting hole is provided on the mounting plate; two adjacent guardrail plates are relatively inserted into the same clamping groove, and the two guardrail plates inserted into the same clamping groove are fixed to the mounting plate by a first fixing member passing through the first mounting hole.

[0009] Optionally, the traffic guardrail also includes a second fixing piece, the column is provided with a mounting through hole, the anti-obstruction block is provided with a second mounting hole, and the anti-obstruction block is fixed to the column by the second fixing piece passing through the mounting through hole and the second mounting hole.

[0010] Optionally, the length of the guardrail board ranges from 2m to 4m, the width of the guardrail board ranges from 0.2m to 0.3m, and the thickness of the guardrail board ranges from 25mm to 50mm.

[0011] Optionally, the anti-obstruction block is provided with an arc-shaped surface adapted to the column; the anti-obstruction block is connected to the column via the arc-shaped surface.

[0012] Optionally, the traffic guardrail further includes a reinforcing connecting plate connecting two adjacent guardrail panels.

[0013] Another embodiment of the present invention further provides a method for preparing a guardrail plate based on retired wind turbine blades, wherein the method is used to prepare the guardrail plate of the above-mentioned traffic guardrail using retired wind turbine blades;

[0014] The method for preparing a guardrail plate based on retired wind turbine blades comprises:

[0015] Marking a first cutting line and a second cutting line on the retired wind turbine blade; the positions of the first cutting line and the second cutting line are determined according to the physical performance requirements and size requirements of the guardrail of the traffic guardrail;

[0016] The blade root area and blade tip area of ​​the retired fan blade are cut off along the first cutting line and the second cutting line to obtain an annular blade middle area; the first cutting line is the dividing line between the blade root area and the blade middle area of ​​the retired fan blade; the second cutting line is the dividing line between the blade tip area and the blade middle area of ​​the retired fan blade;

[0017] Cutting the annular leaf mid-region into a plurality of roughly cut annular segments according to the size requirements of the guardrail;

[0018] The rough-cut annular segment is cut into a plurality of guardrail panels according to the size requirements of the guardrail panels.

[0019] Optionally, marking a first cutting line and a second cutting line on the retired wind turbine blade comprises:

[0020] Taking the root of the retired fan blade as the starting point, in the direction extending toward the length of the retired fan blade, mark the first cutting line at a position corresponding to 15% of the length dimension of the retired fan blade, and mark the second cutting line at a position corresponding to 85% of the length dimension of the retired fan blade.

[0021] Optionally, the step of cutting the rough-cut annular segment into a plurality of guardrail panels according to the size requirements of the guardrail panel comprises:

[0022] The rough-cut annular segments are cut into middle-cut plates according to the size requirements of the guardrail plates, and the middle-cut plates are finely cut into the guardrail plates.

[0023] Optionally, the guardrail plate further includes an anti-corrosion layer; after the rough-cut annular segment is cut into a plurality of the guardrail plates according to the size requirements of the guardrail plate, the method further includes:

[0024] The guardrail plate is polished and deburred, and the anti-corrosion layer is applied to the deburred guardrail plate.

[0025] In the present invention, the splicing sleeve includes a mounting plate, a first hook disposed at the upper end of the mounting plate, and a second hook disposed at the lower end of the mounting plate, and a clamping groove for clamping the guardrail plate is formed between the first hook, the second hook and the guardrail plate. In the present invention, the structure of the traffic guardrail is simple, and the installation of two adjacent guardrail plates is convenient and the connection is compact. In addition, the guardrail plate is made of retired wind turbine blades. Since the wind turbine blades are made of composite materials such as glass fiber and carbon fiber, the guardrail plate has strong acid and alkali resistance and good mechanical properties. When the guardrail plate is used as the main structure of the traffic crash barrier, the guardrail plate can absorb part of the impact energy of the car during the collision of the car. The guardrail plate has strong corrosion resistance, long service life, high strength, high rigidity and good energy absorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 A schematic diagram of the three-dimensional structure of a traffic guardrail provided in one embodiment of the present invention;

[0028] Figure 2 A top view of a traffic guardrail provided in one embodiment of the present invention;

[0029] Figure 3 A schematic diagram of a portion of the structure of a traffic guardrail provided in one embodiment of the present invention;

[0030] Figure 4 A schematic diagram of the splicing between two adjacent guardrail panels of a traffic guardrail provided in one embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the structure of a retired wind turbine blade provided in one embodiment of the present invention;

[0032] Figure 6 A schematic structural diagram of a rough-cut annular segment provided in one embodiment of the present invention;

[0033] Figure 7 A front view of a rough cut ring segment provided in one embodiment of the present invention;

[0034] Figure 8 A schematic diagram of cutting a rough-cut ring segment into a mid-cut plate provided by an embodiment of the present invention;

[0035] Fig. 9 A schematic structural diagram of a center-cut plate material provided by an embodiment of the present invention;

[0036] Fig.10 A schematic structural diagram of a guardrail plate provided in one embodiment of the present invention.

[0037] The reference numerals in the specification are as follows:

[0038] 1. Column; 2. Block block; 21. Curved surface; 3. Joint sleeve; 31. Mounting plate; 32. First hook; 33. Second hook; 4. Guardrail plate; 5. First fixing piece; 6. Second fixing piece; 7. End cover; 8. Strengthening connecting plate; 10. Retired fan blade; 101. Rough-cut ring segment; 102. Middle-cut plate. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] It should be understood that the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", and "middle" are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation of the present invention.

[0041] like Figures 1 to 3 As shown, a traffic guardrail provided by an embodiment of the present invention includes a column 1, an anti-obstruction block 2, a splicing sleeve 3 and a plurality of guardrail panels 4, wherein the anti-obstruction block 2 is installed on the column 1, and the splicing sleeve 3 is installed on the anti-obstruction block 2; the splicing sleeve 3 includes a mounting plate 31, a first hook 32 arranged at the upper end of the mounting plate 31 and a second hook 33 arranged at the lower end of the mounting plate 31, and a clamping groove for clamping the guardrail panel 4 is formed between the first hook 32, the second hook 33 and the guardrail panel 4; a first mounting hole is provided on the mounting plate 31; two adjacent guardrail panels 4 are relatively inserted into the same clamping groove, and the two guardrail panels 4 inserted into the same clamping groove are fixed to the mounting plate 31 by a first fixing member 5 passing through the first mounting hole; the guardrail panel 4 is made of retired wind turbine blades 10. It can be understood that the lower end of the column 1 is buried in the foundation, the first hook 32 is arranged above the mounting plate 31 and extends downward; the second hook 33 is arranged below the mounting plate 31 and extends upward; when two adjacent guardrail panels 4 are clamped in the clamping groove of the splicing sleeve 3, the first end faces of the two adjacent guardrail panels 4 are both in contact with the mounting plate 31, and the second end faces of the two adjacent guardrail panels 4 adjacent to the first end face are both in contact with the first hook 32 and the second hook 33. Further, the first fixing member 5 includes but is not limited to splicing bolts, etc.

[0042] In the present invention, the splicing sleeve 3 includes a mounting plate 31, a first hook 32 arranged at the upper end of the mounting plate 31, and a second hook 33 arranged at the lower end of the mounting plate 31, and a clamping groove for clamping the guardrail plate 4 is formed between the first hook 32, the second hook 33 and the guardrail plate 4; a first mounting hole is provided on the mounting plate 31; two adjacent guardrail plates 4 are relatively inserted into the same clamping groove, and the two guardrail plates 4 inserted into the same clamping groove are fixed to the mounting plate 31 by a first fixing member 5 passing through the first mounting hole. In the present invention, two adjacent guardrail panels 4 are inserted into the same clamping groove, the first end faces of the two adjacent guardrail panels 4 are both fitted with the mounting plate 31, and the second end faces of the two adjacent guardrail panels 4 adjacent to the first end face are both fitted with the first hook 32 and the second hook 33; and are fixed to the mounting plate 31 by the first fixing member 5 passing through the first mounting hole; in the present invention, the structure of the traffic guardrail is simple, the installation of the two adjacent guardrail panels 4 is convenient, and the connection is compact. In addition, the guardrail panels 4 are made of retired wind turbine blades 10. Since the wind turbine blades are made of composite materials such as glass fiber and carbon fiber, the guardrail panels 4 have strong acid and alkali resistance and good mechanical properties. When the guardrail panels 4 are used as the main structure of the traffic crash barrier, the guardrail panels 4 can absorb part of the impact energy of the car during the car collision. The guardrail panels 4 have strong corrosion resistance, long service life, high strength, high rigidity and good energy absorption effect.

[0043] In one embodiment, if Figure 2 As shown, the traffic barrier also includes a second fixing member 6, the column 1 is provided with a mounting through hole, the anti-blocking block 2 is provided with a second mounting hole, and the anti-blocking block 2 is fixed to the column 1 by the second fixing member 6 passing through the mounting through hole and the second mounting hole. It can be understood that the second fixing member 6 can fix the anti-blocking block 2 to the column 1 from the outside of the column 1, and the installation of the traffic barrier is convenient. In one embodiment, the second fixing member 6 is a splicing bolt. It can be understood that the second fixing member 6 includes but is not limited to a splicing bolt, etc. Designing the second fixing member 6 as a splicing bolt reduces the manufacturing cost of the traffic barrier.

[0044] In one embodiment, the length of the guardrail plate 4 ranges from 2m to 4m (for example, 2.5m, 3m, 3.5m, etc.), the width of the guardrail plate 4 ranges from 0.2m to 0.3m (for example, 0.23m, 0.26m, 0.29m, etc.), and the thickness of the guardrail plate 4 ranges from 25mm to 50mm (for example, 30mm, 35mm, 40mm, 45mm, etc.). It can be understood that the guardrail plate 4 is a square guardrail plate 4, so that the two ends of the guardrail plate 4 can be inserted into the clamping groove of the splicing sleeve 3, forming a safety protection device on both sides of the traffic road between adjacent guardrail plates 4. Furthermore, the length, width and height of the guardrail plate 4 can be set according to actual needs, for example, according to the requirements of the retired wind turbine blades 10 and the road for the guardrail plate 4.

[0045] In one embodiment, if Figure 3 As shown, the traffic barrier also includes an anti-theft rope (not shown) and an end cap 7 installed on the top of the column 1, one end of the anti-theft rope is fixed to the inner wall of the column 1, and the other end of the anti-theft rope passes through the inner hole of the column 1 to connect to the end cap 7. It can be understood that the anti-theft rope can fix the end cap 7 to the top of the column 1, and the anti-theft rope is located in the inner hole of the column 1, so that the end cap 7 cannot be removed from the outside, thereby ensuring the safety of the end cap 7.

[0046] In one embodiment, if Figure 2 As shown, the anti-blocking block 2 is provided with an arc surface 21 adapted to the column 1; the anti-blocking block 2 is connected to the column 1 through the arc surface 21. It can be understood that after the anti-blocking block 2 is connected to the outer surface of the column 1 through the arc surface 21, it is fixed by the second fixing member 6 passing through the mounting through hole and the second mounting hole; in this embodiment, the setting of the arc surface 21 can ensure the stability of the connection between the anti-blocking block 2 and the column 1.

[0047] In one embodiment, if Figure 4 As shown, the traffic guardrail further includes a reinforcing connecting plate 8 connecting two adjacent guardrail panels 4. The two identical guardrail panels 4 can be connected, and fixed to the mounting plate 31 by the first fixing member 5 passing through the first mounting hole, and the two adjacent guardrail panels 4 are further butted against each other by the reinforcing connecting plate 8, thereby further improving the stability of the two adjacent guardrail panels 4 in the clamping groove.

[0048] In one embodiment, a warning mark layer for reminding the driver is provided on the guardrail board 4. It can be understood that the warning mark layer can be a warning mark (yellow paint) painted on the guardrail board 4, etc. The design of the warning mark layer can play a role in reminding the car driver to drive carefully.

[0049] In one embodiment, a through hole is provided on the blocking block 2. It can be understood that the provision of the through hole can facilitate the connection between the blocking block 2, the splicing sleeve 3 and the guardrail plate 4; it also facilitates the connection between the column 1 and the blocking block 2. In addition, the design of the through hole reduces the material consumption of the blocking block 2 and reduces the manufacturing cost of the traffic guardrail.

[0050] Another embodiment of the present invention also provides a method for preparing a guardrail plate 4 based on retired wind turbine blades 10, wherein the method is used to prepare the guardrail plate 4 of the above-mentioned traffic guardrail using retired wind turbine blades 10;

[0051] The method for preparing the guardrail plate 4 based on the retired wind turbine blade 10 comprises:

[0052] S10, such as Figure 5 As shown, the first cutting line and the second cutting line are marked on the retired wind turbine blade 10; the positions of the first cutting line and the second cutting line are determined according to the physical performance requirements and size requirements of the guardrail of the traffic guardrail; it can be understood that since the mid-blade area of ​​the wind turbine blade is the main force-bearing component of the wind turbine blade, the mid-blade area is usually supported by reinforced composite materials such as glass fiber and carbon fiber, so the guardrail plate 4 prepared from the mid-blade area is also made of reinforced composite materials, and the guardrail plate 4 has strong acid and alkali resistance and good mechanical properties. The first cutting line and the second cutting line are cutting lines divided along the waistline of the retired wind turbine blade 10, and the first cutting line and the second cutting line divide the retired wind turbine blade 10 into three annular sections (i.e., the blade root area, the blade mid-blade area, and the blade tip area).

[0053] S20, such as Figures 5 and 6 As shown, the root area and the tip area of ​​the retired fan blade 10 are cut off along the first cutting line and the second cutting line to obtain an annular mid-blade area; the first cutting line is the dividing line between the root area and the mid-blade area of ​​the retired fan blade 10; the second cutting line is the dividing line between the tip area and the mid-blade area of ​​the retired fan blade 10; it can be understood that since the root area is the connecting part of the retired fan blade 10 with the fan body, the root area has low toughness and poor energy absorption effect, and is not easy to be used as a traffic guardrail; and the tip area does not meet the size requirements of the traffic guardrail 4 due to its small structure; since the mid-blade area of ​​the fan blade is the main force-bearing component of the fan blade, and its physical properties (strength, stiffness, toughness, etc.) and size meet the requirements of the traffic guardrail 4, the mid-blade area is used as the base material to prepare the guardrail 4, and the guardrail 4 has strong acid and alkali resistance and good mechanical properties.

[0054] S30, such as Figures 5 and 6As shown, the annular leaf mid-area is cut into a plurality of roughly cut annular segments 101 according to the size requirements of the guardrail plate; it can be understood that the leaf mid-area is cut into relatively short roughly cut annular segments 101, and the roughly cut annular segments 101 serve as the base material for making the guardrail plate 4, which is convenient for transportation.

[0055] S40, such as Figures 6 to 10 As shown, the rough cut annular segment 101 is cut into a plurality of guardrail panels 4 according to the size requirements of the guardrail panels. It can be understood that the guardrail panels 4 are square structures, and the size of the guardrail panels 4 can be set according to actual needs.

[0056] In the present invention, since the mid-leaf area of ​​the wind turbine blade is the main force-bearing component of the wind turbine blade, the mid-leaf area is usually supported by reinforced composite materials such as glass fiber and carbon fiber. Therefore, the guardrail plate 4 cut from the mid-leaf area is also made of reinforced composite materials. The guardrail plate 4 has strong acid and alkali resistance and good mechanical properties. When the guardrail plate 4 is used as the main structure of the traffic crash barrier, the guardrail plate 4 can absorb part of the impact energy of the car during the car collision. Compared with the existing steel guardrail plate 4, the guardrail plate 4 cut from the waste and retired wind turbine blade 10 in the present invention has strong corrosion resistance, long service life, high strength, high rigidity and good energy absorption effect. In addition, the guardrail plate 4 also improves the resource utilization rate of the retired wind turbine blades 10 and reduces the environmental pollution caused by the retired wind turbine blades 10.

[0057] In one embodiment, if Figure 1 As shown, the marking of the first cutting line and the second cutting line on the retired wind turbine blade 10 (ie S10) includes:

[0058] Taking the root of the retired fan blade 10 as the starting point, in the direction extending toward the length of the retired fan blade 10, a first cutting line is marked at a position corresponding to 15% of the length dimension of the retired fan blade 10, and a second cutting line is marked at a position corresponding to 85% of the length dimension of the retired fan blade 10. It can be understood that. Taking the root of the retired fan blade 10 as the starting point, the root area is cut at 15% of the total length of the retired fan blade 10, and the tip area is cut at 85% of the total length of the retired fan blade 10, so as to obtain the middle area of ​​the middle blade. It should be noted that the cutting dimensions at both ends of the middle area of ​​the blade can also be set according to actual needs, for example, the root area is cut at 0-15% of the total length of the retired fan blade 10, the middle area is cut at 15%-85% of the total length of the retired fan blade 10, and the tip area is 85%-100% of the total length of the retired fan blade 10. In the present invention, the guardrail plate 4 can make the retired fan blades 10 be well recycled, thereby improving the resource utilization rate of the retired fan blades 10 and reducing the environmental pollution caused by the retired fan blades 10.

[0059] In one embodiment, the step of cutting the rough-cut annular segment 101 into a plurality of the guardrail panels 4 according to the size requirements of the guardrail panels (ie, S40) includes:

[0060] like Figures 8 to 10 As shown, the rough-cut ring segment 101 is cut into medium-cut plates 102 according to the size requirements of the guardrail plate, and the medium-cut plates 102 are finely cut into the guardrail plate 4. It can be understood that the rough-cut ring segment 101 is first cut into relatively large medium-cut plates 102, and then the guardrail plate 4 is prepared on the medium-cut plates 102. In one embodiment, the width value of the center-cut board 102 ranges from 1m to 3m, the length value of the center-cut board 102 ranges from 2m to 4m, and the thickness value of the center-cut board 102 ranges from 20mm to 50mm; the width value of the guardrail board 4 ranges from 0.2m to 0.3m, the length value of the guardrail board 4 ranges from 2m to 4m, and the thickness value of the guardrail board 4 ranges from 25mm to 50mm; preparing the guardrail board 4 from the center-cut board 102 improves the accuracy of the guardrail board 4; in addition, the center-cut board 102 and the steps before the center-cut board 102 can be cut at the material collection site of the retired wind turbine blades 10, and the guardrail board 4 prepared from the center-cut board 102 can be cut in the factory.

[0061] In one embodiment, if Figure 1As shown, the guardrail plate 4 also includes an anti-corrosion layer; after the rough-cut annular segment 101 is cut into a plurality of the guardrail plates 4 according to the size requirements of the guardrail plate (that is, after S40), the method further includes:

[0062] The guardrail plate 4 is polished and deburred, and paint is applied on the deburred guardrail plate 4 to form the anti-corrosion layer. It can be understood that since the guardrail plate 4 works in a natural environment, it will inevitably be eroded by the environment such as wind and sun, and the design of the anti-corrosion layer increases the service life of the guardrail plate 4.

[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A traffic guardrail, characterized in that: It includes a column, an anti-obstruction block, a splicing sleeve and a plurality of guardrail plates, wherein the anti-obstruction block is installed on the column, and the splicing sleeve is installed on the anti-obstruction block; the splicing sleeve includes a mounting plate, a first hook arranged at the upper end of the mounting plate, and a second hook arranged at the lower end of the mounting plate, and a clamping groove for clamping the guardrail plate is formed between the first hook, the second hook and the guardrail plate; the guardrail plate is made of retired wind turbine blades.

2. The traffic barrier according to claim 1, characterized in that: A first mounting hole is provided on the mounting plate; two adjacent guardrail plates are relatively inserted into the same clamping groove, and the two guardrail plates inserted into the same clamping groove are fixed to the mounting plate by a first fixing member passing through the first mounting hole.

3. The traffic barrier according to claim 1, characterized in that: The traffic guardrail also includes a second fixing piece, the column is provided with a mounting through hole, the anti-blocking block is provided with a second mounting hole, and the anti-blocking block is fixed to the column by the second fixing piece passing through the mounting through hole and the second mounting hole.

4. The traffic barrier according to claim 1, characterized in that: The length of the guardrail plate ranges from 2m to 4m, the width of the guardrail plate ranges from 0.2m to 0.3m, and the thickness of the guardrail plate ranges from 25mm to 50mm.

5. The traffic barrier according to claim 1, characterized in that: The anti-blocking block is provided with an arc-shaped surface adapted to the column; the anti-blocking block is connected to the column by fitting through the arc-shaped surface.

6. The traffic barrier according to claim 1, characterized in that: The traffic guardrail also includes a reinforcing connecting plate connecting two adjacent guardrail plates.

7. A method for preparing guardrail plates based on retired wind turbine blades, characterized in that: The method is used to prepare the guardrail plate of the traffic guardrail as claimed in any one of claims 1 to 6 using retired wind turbine blades; The method for preparing a guardrail plate based on retired wind turbine blades comprises: Marking a first cutting line and a second cutting line on the retired wind turbine blade; the positions of the first cutting line and the second cutting line are determined according to the physical performance requirements and size requirements of the guardrail of the traffic guardrail; The blade root area and blade tip area of ​​the retired fan blade are cut off along the first cutting line and the second cutting line to obtain an annular blade middle area; the first cutting line is the dividing line between the blade root area and the blade middle area of ​​the retired fan blade; the second cutting line is the dividing line between the blade tip area and the blade middle area of ​​the retired fan blade; Cutting the annular leaf mid-region into a plurality of roughly cut annular segments according to the size requirements of the guardrail plate; The rough-cut annular segment is cut into a plurality of guardrail panels according to the size requirements of the guardrail panels.

8. The method for preparing guardrail plates based on retired wind turbine blades according to claim 7 is characterized in that: The step of marking a first cutting line and a second cutting line on the retired wind turbine blade comprises: Taking the root of the retired fan blade as the starting point, in the direction extending toward the length of the retired fan blade, mark the first cutting line at a position corresponding to 15% of the length dimension of the retired fan blade, and mark the second cutting line at a position corresponding to 85% of the length dimension of the retired fan blade.

9. The method for preparing guardrail plates based on retired wind turbine blades according to claim 7, characterized in that: The method of cutting the rough-cut annular segment into a plurality of guardrail panels according to the size requirements of the guardrail panel comprises: The rough-cut annular segments are cut into middle-cut plates according to the size requirements of the guardrail plates, and the middle-cut plates are finely cut into the guardrail plates.

10. The method for preparing guardrail plates based on retired wind turbine blades according to claim 7, characterized in that: The guardrail plate further comprises an anti-corrosion layer; after the rough-cut annular segment is cut into a plurality of the guardrail plates according to the size requirements of the guardrail plate, the method further comprises: The guardrail plate is polished and deburred, and the anti-corrosion layer is applied to the deburred guardrail plate.

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