Highway guardrail that adaptively responds to different curves based on the deflection angle

Abstract

The present invention relates to a highway guardrail. Specifically, it relates to a highway guardrail that can adaptively respond to different curves based on the deflection angle. It includes a plurality of guardrail bodies arranged on both sides of the road. The road includes a straight section and a curved section, and both the straight section and the curved section are composed of the ground and the road surface. A guard plate is arranged inside the guardrail body, and some of the guard plates are arranged on the guardrail bodies located at the curved section. The guardrail body located in the middle of the curved section is movably arranged on the ground. In this highway guardrail that can adaptively respond to different curves based on the deflection angle, the staff stands on the pressure platform to drive the wire reel, so that the rotating wire reel pulls the column located in the middle part of the curved section through the connecting rope, uses the gravity of the worker to overcome the elastic force of the guard plate, and through the cooperation of the fixation of the two columns, enables the guard plate to complete the bending work. At the same time, during the installation process, the personnel will not contact the guard plate, thereby improving the installation efficiency and safety.

Description

Technical Field

[0001] The present invention relates to a highway guardrail, and more particularly to a highway guardrail that can adaptively respond to different curves based on the deflection angle. Background Art

[0002] Currently, anti-collision guardrails are installed on both sides of highways to withstand the impact of vehicles when they get out of control and buffer the impact of the vehicles to reduce the degree of vehicle damage. Currently, the anti-collision guardrails generally have corrugated guardrail plates. When the guardrail plates are impacted by vehicles, the elastic deformation of the guardrail plates is used to absorb the collision energy to achieve the buffering effect on the vehicles.

[0003] Most of the current guardrail plates adopt corrugated plates. For example, Chinese Patent Publication No. CN106758975A discloses a highway guardrail, which includes a plurality of pillars arranged side by side at intervals, a guardrail plate provided on the pillars, and a protective end plate located at the end of the guardrail plate. The guardrail plate and the protective end plate are both made of elastic metal materials. The guardrail plate is in a corrugated shape with concave and convex parts alternating in the vertical direction. The guardrail plate is filled with thermoplastic resin foams respectively on the front of the concave part and the back of the convex part. The protective end plate includes a flat part fixed to the end of the guardrail plate and a curled part formed by bending the end of the flat part away from the guardrail plate. The curled part is bent and curled into several layers of cylinders in the direction from the end of the flat part away from the guardrail plate to the back side of the guardrail plate. The pillar includes a metal tube core and a wooden cylinder sleeved outside the metal tube core. The highway guardrail wraps the sharp corner part at the end of the guardrail plate inside through the protective end plate and forms an elastic body together with the guardrail plate, which can absorb the energy generated when the vehicle impacts and reduce the degree of injury of the people in the vehicle.

[0004] Since the corrugated guardrail plates all have a certain elastic force, during the installation process, multiple workers are required to work together to bend one end of the guardrail plate onto another column to make the guardrail plate in a bent state so as to adapt to the change of the curve. However, the simultaneous construction of multiple workers will increase the labor force; moreover, if one worker makes a mistake during installation, then the guardrail plate will recover from the bent state to the straight state due to elasticity. Since people are in direct contact with the guardrail plate, it is easy to cause injuries to the workers during the recovery process of the guardrail plate. Summary of the Invention

[0005] The purpose of the present invention is to provide a highway guardrail that can adaptively respond to different curves based on the deflection angle to solve the problems raised in the above background art.

[0006] To achieve the above object, a highway guardrail based on a deflection angle for adaptively coping with different curves is provided, including a plurality of guardrail bodies arranged on both sides of the road. The road includes a straight section and a curved section, and both the straight section and the curved section are composed of the ground and the road surface. A guard plate is arranged inside the guardrail body, and some of the guard plates are arranged on the guardrail bodies located at the curved section. The guardrail body located in the middle of the curved section is movably arranged on the ground. A connecting rope for driving the movement of the guardrail body is arranged inside the guardrail body located at the end of the curved section. By pressing down, the connecting rope is pulled, and the connecting rope is used to drive the guardrail body located in the middle of the curved section to move, forcing the guard plate at this part to bend.

[0007] As a further improvement of this technical solution, the guardrail body includes a column, and the column is fixedly arranged on the top of the ground. A connecting piece is connected to the side wall of the column, where:

[0008] The connecting piece located at the straight section is fixedly connected to the column, and both ends of the guard plate are fixedly arranged at two adjacent connecting pieces;

[0009] One end of the connecting piece located at the curved section is fixedly connected with an installation pipe, and the other end is fixedly connected with a sleeve. The sleeve is rotatably arranged on the outer circle of the column. An installation cavity is opened inside the column, and a driving piece is arranged inside the installation cavity. The driving piece is used for winding the connecting rope.

[0010] As a further improvement of this technical solution, the shape of the installation pipe matches the shape of the guard plate, so that the guard plate can pass through the installation pipe.

[0011] As a further improvement of this technical solution, the driving piece includes a lead screw. The lead screw is vertically rotatably arranged inside the lead screw. A wire reel and a locking piece are sequentially arranged at the bottom of the lead screw. The locking piece is used to prevent the lead screw from rotating in the reverse direction. The wire reel is fixedly connected to the lead screw. One end of the connecting rope penetrates into the installation cavity and is fixedly connected to the wire reel. The outer circle of the lead screw is threadedly connected with a lead screw nut, and a pressing platform is fixedly connected to the side wall of the lead screw nut.

[0012] As a further improvement of this technical solution, the locking piece includes a ratchet and a pawl. The ratchet is coaxially and fixedly arranged at the bottom end of the lead screw. One end of the pawl is rotatably arranged on the side wall of the installation cavity, and the other end is meshed with the ratchet. An elastic piece is arranged on the side wall of the installation cavity, and one end of the elastic piece is bent towards the pawl.

[0013] As a further improvement of the technical solution, a fixing platform is provided at the bottom of the guardrail body in the middle of the bend part. The fixing platform is fixedly arranged in the ground. A chute is opened at the top of the fixing platform. A slider is slidably arranged in the chute. The top of the slider is fixedly connected to the bottom of the column. One end of the top of the fixing platform is fixedly connected with a guiding column. One end of the connecting rope bypasses the guiding column and is fixedly connected to the top of the slider.

[0014] As a further improvement of the technical solution, through openings are formed in the side walls of the columns at both ends of the bend part. A connecting rod is longitudinally slidably arranged in the through openings. The two connecting rods are fixedly connected by a transmission rod. A return spring is arranged between the bottom of the connecting rod and the bottom end of the through opening. One end of the connecting rod is connected with an adjusting member. The adjusting member adjusts the position of the pawl when the connecting rod moves downward so that the pawl disengages from the ratchet wheel. The other end of one of the connecting rods is located on the top of the road surface and forms a horizontal state with the road surface.

[0015] As a further improvement of the technical solution, the adjusting member includes a connecting ring slidably arranged longitudinally in the installation cavity. The side wall of the connecting ring is fixedly connected to one end of the connecting rod. A wedge-shaped block is fixedly connected to the bottom of the connecting ring. The inclined surface of the wedge-shaped block is attached to one side of the pawl.

[0016] As a further improvement of the technical solution, at the two columns at the end of the bend part, one of the pressing platforms is arranged on the side close to the road surface, and the other pressing platform is arranged on the side far from the road surface.

[0017] As a further improvement of the technical solution, a baffle is inserted on the outer wall of the column. The baffle is located above the pressing platform.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. In the highway guardrail that can adaptively respond to different bends based on the deflection angle, the staff stands on the pressing platform to drive the wire reel, so that the rotating wire reel pulls the column in the middle of the bend part through the connecting rope to move. The gravity of the worker is used to overcome the elastic force of the guard plate, and through the cooperation of the fixation of the two columns, the guard plate completes the bending work. At the same time, the staff will not contact the guard plate during the installation process, thereby improving the installation efficiency and safety.

[0020] 2. In the highway guardrail that can adaptively respond to different bends based on the deflection angle, the force of the deformation of the guard plate after bending is utilized. Taking the vehicle rolling over the connecting rod as the contact condition for restricting the bending of the guard plate. When the vehicle approaches, the pawl is disengaged from the ratchet wheel by the downward pressure of the connecting rod, so that the bent guard plate is restored to a straight state, so as to reduce the phenomenon of scratching between the vehicle and the guard plate. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the structure of the road of the present invention;

[0023] Figure 3 is a schematic diagram of the structure of the column of the present invention;

[0024] Figure 4 is a schematic diagram of the structure of the bend part of the present invention;

[0025] Figure 5 is a schematic diagram of the structure of the guardrail body of the present invention;

[0026] Figure 6 is a schematic diagram of the structure of the ratchet of the present invention;

[0027] Figure 7 is a schematic diagram of the structure of the fixed platform of the present invention;

[0028] Figure 8 is a schematic diagram of the structure of the wedge block of the present invention;

[0029] Figure 9 is a schematic diagram of the structure of the transmission rod of the present invention;

[0030] Figure 10 is the first schematic diagram of the installation state of the guard plate of the present invention;

[0031] Figure 11 is the second schematic diagram of the installation state of the guard plate of the present invention.

[0032] The meanings of the respective reference numerals in the figure are:

[0033] 100, road;

[0034] 110, straight part; 120, bend part; 121, ground; 122, road surface;

[0035] 200, guardrail body;

[0036] 210, column; 211, connecting piece; 212, installation pipe; 213, sleeve; 214, installation cavity;

[0037] 220, lead screw; 221, lead screw nut; 222, pressing platform; 223, wire reel; 224, connecting rope;

[0038] 230, ratchet; 231, pawl; 232, elastic piece; 233, connecting ring; 234, wedge block; 235, connecting rod; 236, return spring; 237, transmission rod;

[0039] 240. Fixed table; 241. Slide block; 242. Guide post;

[0040] 300. Guard plate. Detailed implementation mode

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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 cannot be understood as a limitation of the present invention.

[0043] In addition, in the description of the present invention, the meaning of "a plurality of" is two or more unless otherwise specifically defined.

[0044] Please refer to Figure 1 and Figure 2 As shown, a highway guardrail that adaptively responds to different curves based on the deflection angle is provided, so that the guardrail can reduce the dependence on the number of workers during installation and improve the safety during guardrail installation. It mainly includes a plurality of guardrail bodies 200 arranged on both sides of the road 100. The road 100 includes a straight section 110 and a curved section 120. Both the straight section 110 and the curved section 120 are composed of the ground 121 and the road surface 122. Among them, a guard plate 300 is arranged inside the guardrail body 200. Some guard plates 300 are arranged on the guardrail body 200 located at the curved section 120. The guardrail body 200 located in the middle of the curved section 120 is movably arranged on the ground 121. A connecting rope 224 for driving the movement of the guardrail body 200 is arranged inside the guardrail body 200 located at the end of the curved section 120. The connecting rope 224 is pulled by pressing down, such as the weight of the staff. The connecting rope 224 is used to drive the guardrail body 200 located in the middle of the curved section 120 to move, forcing the guard plate 300 at this part to bend, so as to quickly complete the installation operation.

[0045] Please refer to the following embodiments specifically.

[0046] Figures 1-8 shows the first embodiment of the present invention. In this embodiment, Figures 2-5 :

[0047] The guardrail body 200 includes columns 210, which are fixedly arranged on the top of the ground 121 and can be fixed by means such as insertion, pouring, and bolt connection. A connecting piece 211 is connected to the side wall of the column 210, where:

[0048] The connecting piece 211 located at the straight part 110 is fixedly connected to the column 210. Since the road 100 at this part is straight, the guard plates 300 can be directly installed between every two adjacent columns 210 without considering the bending treatment of the curved part 120. Both ends of the guard plate 300 are fixedly arranged at two adjacent connecting pieces 211, and the fixing method preferably adopts bolt connection so that the guard plate 300 can be quickly replaced when it is knocked down by a vehicle;

[0049] One end of the connecting piece 211 located at the curved part 120 is fixedly connected with an installation pipe 212. The shape of the installation pipe 212 matches the shape of the guard plate 300 so that the guard plate 300 can pass through the installation pipe 212, and the other end is fixedly connected with a sleeve 213. The sleeve 213 is rotatably arranged on the outer circle of the column 210. The number of columns 210 located at the curved part 120 is preferably three, two of which are located at the ends of the curved part 120 and the other is located in the middle of the curved part 120. During installation, the angles of multiple installation pipes 212 are first adjusted by rotation so that the vertical guard plate 300 can pass through the installation pipes 212 at the same time. An installation cavity 214 is opened in the column 210, and a driving member is arranged in the installation cavity 214 for winding the connecting rope 224.

[0050] In Figure 5 , the driving member includes a lead screw 220, which is vertically rotatably arranged in the lead screw 220. A wire reel 223 and a locking member are sequentially arranged at the bottom of the lead screw 220. The locking member is used to prevent the lead screw 220 from rotating in the reverse direction; the wire reel 223 is fixedly connected to the lead screw 220. One end of the connecting rope 224 penetrates into the installation cavity 214 and is fixedly connected to the wire reel 223, so that when the wire reel 223 rotates, the connecting rope 224 is wound around its outer circle to complete the winding of the connecting rope 224; at the same time, the rotation of the lead screw 220 is driven by gravity. Mainly, a lead screw nut 221 is threadedly connected to the outer circle of the lead screw 220, and a pressing platform 222 is fixedly connected to the side wall of the lead screw nut 221. By a worker stepping on the pressing platform 222, the lead screw nut 221 is driven to move downward by its own gravity, and the lead screw 220 is driven by the spiral force during the downward movement of the lead screw nut 221 to make the lead screw 220 rotate.

[0051] However, since the guard plate 300 still has elasticity after being bent, when the staff member disengages from the pressing platform 222, the deformation force of the guard plate 300 itself acts on the lead screw 220 through the connecting rope 224, which may cause the lead screw 220 to reverse, resulting in installation failure. Based on this phenomenon, the locking member is disclosed in this embodiment. Please refer to Figure 5 and Figure 6 as shown in:

[0052] The locking member includes a ratchet wheel 230 and a pawl 231. The ratchet wheel 230 is coaxially and fixedly arranged at the bottom end of the lead screw 220. One end of the pawl 231 is rotatably arranged on the side wall of the installation cavity 214, and the other end is engaged with the ratchet wheel 230. An elastic piece 232 is arranged on the side wall of the installation cavity 214, and one end of the elastic piece 232 is bent towards the pawl 231. When the lead screw 220 rotates forward, the ratchet wheel 230 repels and squeezes the pawl 231, and the pawl 231 cannot be engaged with the ratchet wheel 230, so the lead screw 220 can rotate. When the lead screw 220 rotates reversely, under the action of the elastic piece 232, the pawl 231 is engaged with the ratchet wheel 230. Since the other end of the pawl 231 is arranged on the side wall of the installation cavity 214, the ratchet wheel 230 cannot rotate, thus preventing the lead screw 220 from reversing and changing the bent guard plate 300 back to a straight shape.

[0053] In Figure 7 , at the bottom of the guardrail body 200 located in the middle of the curve part 120, a fixed platform 240 is provided. The fixed platform 240 is fixedly arranged in the ground 121. A chute is opened at the top of the fixed platform 240, and a slider 241 is slidably arranged in the chute. The top of the slider 241 is fixedly connected to the bottom of the column 210. One end of the top of the fixed platform 240 is fixedly connected with a guiding column 242. One end of the connecting rope 224 bypasses the guiding column 242 and is fixedly connected to the top of the slider 241; the guiding column 242 guides the force direction of the connecting rope 224. When the connecting rope 224 is wound up, the connecting rope 224 drives the slider 241 to move through the guiding column 242, so that the slider 241 drives the column 210 at the top to move. At this time, the column 210 drives the guard plate 300 to move in the direction indicated by the arrow a in Figure 10 . When the column 210 moves near the road surface 122, since the positions of the columns 210 at both ends of the curve part 120 do not change, at this time, the guard plate 300 is in a bent state.

[0054] That is to say, the staff stands on the pressing platform 222 to drive the reel 223, so that the rotating reel 223 drives the column 210 located in the middle part of the curve part 120 to move through the connecting rope 224, uses the gravity of the worker to overcome the elastic force of the guard plate 300, and through the cooperation of the two fixed columns 210, the bending work of the guard plate 300 is completed. At the same time, the personnel will not contact the guard plate 300 during the installation process, thereby improving the installation efficiency and safety.

[0055] Second Embodiment. Considering that corrugated guardrails are also used on some rural roads 100, most of such roads 100 are not set to be wide, which causes vehicles to drive close to the guard plate 300. Then, during the turning process, some vehicles with longer lengths are likely to contact the guard plate 300, resulting in damage to the vehicle and the guard plate 300. For this reason, the purpose of this embodiment is to provide a guardrail that can adjust the guard plate 300 according to the vehicle position. Please refer to Figures 5-11 as shown in

[0056] Openings are provided on the side walls of the columns 210 at both ends of the curved section 120. A connecting rod 235 is longitudinally slidably arranged in the openings. The two connecting rods 235 are fixedly connected by a transmission rod 237. A return spring 236 is arranged between the bottom of the connecting rod 235 and the bottom end of the opening. One end of the connecting rod 235 is connected with an adjusting member, and the adjusting member adjusts the position of the pawl 231 when the connecting rod 235 moves downward, so that the pawl 231 disengages from the ratchet wheel 230. The other end of one of the connecting rods 235 is located on the top of the road surface 122 and forms a horizontal state with the road surface 122.

[0057] The adjusting member includes a connecting ring 233 longitudinally slidably arranged in the installation cavity 214. The side wall of the connecting ring 233 is fixedly connected with one end of the connecting rod 235. A wedge-shaped block 234 is fixedly connected to the bottom of the connecting ring 233. The inclined surface of the wedge-shaped block 234 is attached to one side of the pawl 231. When the connecting rod 235 drives the wedge-shaped block 234 to move downward through the connecting ring 233, the wedge-shaped block 234 pushes the pawl 231 to rotate through its own inclined surface, thereby completing the step of the pawl 231 disengaging from the ratchet wheel 230.

[0058] Moreover, at the two columns 210 at the end of the curved section 120, one pressure application platform 222 is arranged on the side close to the road surface 122, and the other pressure application platform 222 is arranged on the side far from the road surface 122. At the same time, a baffle is inserted on the outer wall of the column 210, and the baffle is located above the pressure application platform 222 to limit the upward movement height of the pressure application platform 222, so as to prevent the phenomenon that when the pawl 231 disengages from the ratchet wheel 230, the guard plate 300 quickly resumes its original state and the pressure application platform 222 rises too high, preventing the wheels from not being able to roll over the pressure application platform 222.

[0059] Working Principle:

[0060] Please refer to Figure 11 as shown. The position of the connecting rod 235 corresponds to point b on the road surface 122, and the position of the pressure application platform 222 corresponds to point c on the road surface 122;

[0061] When the vehicle approaches the guard plate 300, it means that the vehicle is likely to come into contact with the guard plate 300. At this time, when the vehicle travels to point b, it will press the connecting rod 235. The connecting rod 235 drives the wedge block 234 to move downward through the connecting ring 233, pushing the pawl 231, causing the pawl 231 to disengage from the ratchet wheel 230. At this time, the ratchet wheel 230 is not restricted by the pawl 231. Therefore, the bent ratchet wheel 230 drives the upright post 210 and the slider 241 under the action of its own elasticity, that is Figure 11 in the direction indicated by arrow d in, forcing the slider 241 to reset. After the slider 241 resets, the guard plate 300 changes from a bent state to a straight state (please refer to Figure 10 the state of the guard plate 300 in). At this time, the distance between the guard plate 300 at the curved part 120 and the road surface 122 increases, reducing the risk of contact;

[0062] When the vehicle travels to point c, the wheel presses the upward moving pressure-applying platform 222. Under the action of the vehicle's gravity, the pressure-applying platform 222 is pressed down. The pressure-applying platform 222 drives the wire reel 223 to rotate through the lead screw 220, forcing the wire reel 223 to pull the slider 241 to move again through the connecting rope 224 (please refer to Figure 11 the direction of arrow a in and becomes bent).

[0063] It can be seen that the force of the deformation after the bending of the guard plate 300 is utilized, and the vehicle running over the connecting rod 235 is used as the condition for restricting the bending of the guard plate 300. When the vehicle approaches, the downward pressure of the connecting rod 235 disengages the pawl 231 from the ratchet wheel 230, causing the bent guard plate 300 to return to a straight state, so as to reduce the scratching phenomenon between the vehicle and the guard plate 300.

[0064] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highway guardrail that adaptively responds to different curves based on the deflection angle, comprising a plurality of guardrail bodies (200) arranged on both sides of a road (100), the road (100) including a straight section (110) and a curved section (120), both the straight section (110) and the curved section (120) being composed of a ground (121) and a road surface (122), and a guard plate (300) being arranged inside the guardrail body (200), characterized in that: The described guard plate (300) is arranged on the guardrail body (200) located at the bend part (120). The guardrail body (200) in the middle of the bend part (120) is movably arranged on the ground (121). A connecting rope (224) for driving the movement of the guardrail body (200) is arranged inside the guardrail body (200) at the end of the bend part (120). By pressing down to pull the connecting rope (224), the connecting rope (224) is used to drive the guardrail body (200) in the middle of the bend part (120) to move, forcing the guard plate (300) at this part to bend; The guardrail body (200) includes a column (210). The column (210) is fixedly arranged on the top of the ground (121). An installation cavity (214) is formed inside the column (210). A driving member is arranged inside the installation cavity (214). The driving member is used for winding up the connecting rope (224); The driving member includes a lead screw (220). The lead screw (220) is vertically rotatably arranged inside the column (210). A wire reel (223) and a locking member are sequentially arranged at the bottom of the lead screw (220). The locking member is used to prevent the lead screw (220) from rotating in the reverse direction. The wire reel (223) is fixedly connected to the lead screw (220). One end of the connecting rope (224) penetrates into the installation cavity (214) and is fixedly connected to the wire reel (223). A lead screw nut (221) is threadedly connected to the outer circle of the lead screw (220). A pressure application platform (222) is fixedly connected to the side wall of the lead screw nut (221).

2. The highway guardrail based on the deflection angle for adaptively coping with different curves according to claim 1, wherein: A connecting member (211) is connected to the side wall of the column (210), where: The connecting member (211) located at the straight part (110) is fixedly connected to the column (210). Both ends of the guard plate (300) are fixedly arranged at two adjacent connecting members (211); One end of the connecting member (211) located at the bend part (120) is fixedly connected to an installation pipe (212), and the other end is fixedly connected to a sleeve (213). The sleeve (213) is rotatably arranged on the outer circle of the column (210).

3. The highway guardrail based on the deflection angle for adaptively coping with different curves according to claim 2, wherein: The shape of the installation pipe (212) matches the shape of the guard plate (300) so that the guard plate (300) can pass through the installation pipe (212).

4. The highway guardrail based on the deflection angle adapting to different curves according to claim 1, wherein: The locking member includes a ratchet wheel (230) and a ratchet pawl (231). The ratchet wheel (230) is coaxially and fixedly arranged at the bottom end of the lead screw (220). One end of the ratchet pawl (231) is rotatably arranged on the side wall of the installation cavity (214), and the other end meshes with the ratchet wheel (230). An elastic piece (232) is arranged on the side wall of the installation cavity (214). One end of the elastic piece (232) is bent towards the ratchet pawl (231).

5. The highway guardrail based on the deflection angle to adaptively respond to different curves according to claim 1, characterized in that: A fixing platform (240) is provided at the bottom of the guardrail body (200) located in the middle of the bend part (120). The fixing platform (240) is fixedly arranged in the ground (121). A sliding groove is formed at the top of the fixing platform (240). A slider (241) is slidably arranged in the sliding groove. The top of the slider (241) is fixedly connected to the bottom of the upright column (210). One end of the top of the fixing platform (240) is fixedly connected with a guiding column (242). One end of the connecting rope (224) bypasses the guiding column (242) and is fixedly connected to the top of the slider (241).

6. The highway guardrail based on the deflection angle for adaptively coping with different curves according to claim 5, characterized in that: Through openings are formed in the side walls of the upright columns (210) at both ends of the bend part (120). A connecting rod (235) is longitudinally slidably arranged in the through openings. The two connecting rods (235) are fixedly connected by a transmission rod (237). A return spring (236) is arranged between the bottom of the connecting rod (235) and the bottom end of the through opening. One end of the connecting rod (235) is connected with an adjusting member. The adjusting member adjusts the position of the ratchet pawl (231) when the connecting rod (235) moves downward so that the ratchet pawl (231) disengages from the ratchet wheel (230). The other end of one of the connecting rods (235) is located on the top of the road surface (122) and forms a horizontal state with the road surface (122).

7. The highway guardrail based on the deflection angle to adaptively respond to different curves according to claim 6, characterized in that: The adjusting member includes a connecting ring (233) longitudinally slidably arranged in the installation cavity (214). The side wall of the connecting ring (233) is fixedly connected to one end of the connecting rod (235). A wedge-shaped block (234) is fixedly connected to the bottom of the connecting ring (233). The inclined surface of the wedge-shaped block (234) is attached to one side of the ratchet pawl (231).

8. The highway guardrail based on the deflection angle for adaptively coping with different curves according to claim 6, characterized in that: At the two upright columns (210) at the end of the bend part (120), one of the pressing platforms (222) is arranged on the side close to the road surface (122), and the other pressing platform (222) is arranged on the side far from the road surface (122).

9. The highway guardrail based on the deflection angle adapting to different curves according to claim 8, characterized in that: A baffle is inserted on the outer wall of the upright column (210). The baffle is located above the pressing platform (222).

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