Anti-collision energy-absorbing arc-shaped guardrail for fork road and using method thereof

Abstract

The invention belongs to the technical field of guardrail equipment, and discloses an anti-collision energy-absorbing arc-shaped guardrail for a fork road and a using method thereof.The anti-collision energy-absorbing arc-shaped guardrail for the fork road comprises a guardrail body and further comprises movable modules installed on the two sides of the upper end of the guardrail body; the baffle is movably connected to an inner cavity of the movable module; the compression module is mounted at the lower end of the guardrail body; and the rotating assembly is arranged in the guardrail body, and the end, away from the guardrail body, of the rotating assembly extends into an inner cavity of the rotating assembly. Through cooperation of the baffle, the rotating assembly and other structures, when a vehicle body collides with the guardrail body, a water body in an arc rod exerts pressure to abut against a screw rod, and therefore the vehicle body collides with the guardrail body; the screw enables the connecting block to drive the baffle to turn over through the rotating shaft, so that the top end of the baffle exerts pressure from top to bottom on the vehicle body, the friction effect between vehicle tires and the road surface is improved by exerting pressure on the vehicle body downwards, and then the preliminary anti-collision energy absorption effect is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of guardrail equipment, and in particular is an anti-collision energy-absorbing arc-shaped guardrail for a fork in the road and a use method thereof. Background Art

[0002] The fork in the road is a place with heavy traffic and pedestrian flow. In order to protect pedestrians on the sidewalks at the fork in the road, curved guardrails are generally installed at the corners to improve the protection effect.

[0003] However, the existing curved guardrails at forks in the road still have disadvantages in actual use: when vehicles traveling at the forks in the road are avoiding vehicles that do not follow traffic lights, or avoiding "running recklessly" pedestrians, or when the driver fails to fully observe the road conditions and fails to notice the guardrails at the corners in time, the driver will generally swerve in an emergency, which can easily lead to the vehicle losing control. The vehicle will hit the curved guardrails at the corners in an arc-like manner. The existing curved guardrails are generally directly welded from several sections of steel pipes. When the vehicle hits, the guardrails cannot provide a good anti-collision and energy-absorbing effect for the vehicle, which will cause the collision of the vehicle with the guardrails to cause a greater safety hazard to the vehicle and pedestrians on the roadside. Therefore, a collision-proof and energy-absorbing curved guardrail for forks in the road is proposed. Summary of the invention

[0004] In order to solve the problem raised in the above background technology that the existing arc-shaped guardrail is generally directly made of several sections of steel pipes welded together, and when the vehicle body collides, the guardrail cannot provide a good anti-collision and energy-absorbing effect for the vehicle body, which leads to the collision of the vehicle body with the guardrail causing a greater safety hazard to the vehicle body and pedestrians on the roadside, the present invention provides an anti-collision and energy-absorbing arc-shaped guardrail for a fork intersection and a method for using the same.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an anti-collision energy-absorbing arc-shaped guardrail for a fork in the road, comprising a guardrail body, and also comprising:

[0006] Movable modules, which are installed on both sides of the upper end of the guardrail body;

[0007] a baffle, the baffle being movably connected to the inner cavity of the movable module;

[0008] A compression module, the compression module being mounted at the lower end of the guardrail body;

[0009] A rotating assembly, wherein the rotating assembly is arranged inside the movable module;

[0010] The movable module comprises a positioning tube, one end of which is fixedly connected to the guardrail body, and the interior of the positioning tube is movably connected to a limiting ring;

[0011] The compression module comprises a spring expansion tube, one end of which is fixedly connected to a connecting bellows, and one end of the top of which is fixedly connected to a second connecting tube;

[0012] The rotating assembly includes a resistance member, which is movably connected to the inside of the guardrail body. The resistance member also includes a screw, and a rotating shaft is threadedly sleeved on one end of the screw away from the guardrail body. A connecting block is fixedly connected to the outer wall of the rotating shaft, and the resistance member is fixedly connected to a baffle at one end away from the rotating shaft.

[0013] Preferably, the guardrail body comprises a base, both sides of the top surface of the base are slidably connected with vertical rods, the top of the vertical rod is fixedly connected with an arc rod, and the arc rod is fixedly connected to the base through a connecting rod;

[0014] Protective covers for protecting the spring expansion tube and the connecting bellows are installed on both sides of the top surface of the base;

[0015] The middle end of the inner cavity of the arc rod is filled with water.

[0016] Preferably, two baffles are provided, both of which are in an "L" shape, and a reflective strip is installed on one side wall of the baffle.

[0017] Preferably, damping fluid is placed inside the end of the spring expansion tube away from the vertical rod, and the upper end of the second connecting tube penetrates the arc rod and extends to the inside of the arc rod;

[0018] When the vertical rod is moved by external force to compress the spring expansion tube, the damping fluid inside the spring expansion tube will flow into the interior of the arc rod through the connecting bellows and the second connecting tube.

[0019] Preferably, the outer side of the connecting bellows is located inside the protective cover, and one end of the connecting bellows close to the vertical rod passes through the protective cover upwards.

[0020] Preferably, both ends of the outer wall of the rotating shaft are sleeved with limit blocks, and the two limit blocks are slidably connected to the inside of the arc rod and the positioning tube respectively;

[0021] The rotating shaft, which is away from one end of the arc rod, passes through the positioning tube and the vertical rod in sequence and extends to the outside of the vertical rod. A spur gear is fixedly connected to the outer wall of the positioning tube at one end of the inner cavity of the vertical rod.

[0022] Preferably, the upper and lower ends of the screw rod are elastically connected to the arc rod through a first spring, and the outer wall of the screw rod is tightly fitted with the inner wall of the arc rod.

[0023] Preferably, a locking assembly is provided inside the vertical rod;

[0024] The locking assembly comprises a clamping plate slidably connected to the interior of the vertical rod, two sides of the clamping plate are elastically connected to the inner cavity of the vertical rod through a second spring, and the bottom end of the clamping plate passes downward and is clamped in the interior of the base.

[0025] Preferably, a rack is installed on a side wall of the upper end of the card plate close to the spur gear, and the card plate is meshed and connected with the spur gear through the rack;

[0026] A through slot for moving the card plate upward is provided at the top of the inner cavity of the vertical rod, and a polyester film is installed inside the through slot.

[0027] The present application also proposes a method for using an anti-collision energy-absorbing arc guardrail for a fork in the road, and the method for using is as follows:

[0028] S1. When the guardrail body is hit, the vehicle body hits the arc rod area, and the arc rod is deformed after being hit again. The deformed arc rod causes the water inside to quickly impact to both sides when under pressure;

[0029] S2. The water will push one end of the screw to gradually move to the inside of the shaft. When the two come into contact, the shaft will rotate, and the baffle will rotate through the connecting block, so that the top of the baffle will flip from a vertical state to an inclined state, and cause the top area to contact the top of the vehicle body, exerting pressure on the vehicle body from top to bottom. Through this tooth, the friction between the vehicle tire and the ground is increased, thereby increasing the anti-collision energy absorption of the guardrail body to the vehicle body;

[0030] S3. When the shaft rotates, the spur gear drives the card plate upward, releasing the locking state between the card plate and the base. As the vehicle body impacts the guardrail body, the vertical rod, the connecting rod, the arc rod, the baffle, the compression module, the rotating assembly and the locking assembly are forced to move at the same time. At the same time, when the vehicle body impacts the guardrail body, the base is released;

[0031] S4. At the same time, during the movement of the vertical rod, the damping fluid inside the spring expansion tube will be compressed, so that the damping fluid will be introduced into the interior of the arc rod again through the connecting bellows and the second connecting tube, and the pressure of the screw rod against the rotating shaft will be continuously filled in the interior of the arc rod, thereby increasing the resistance force of the flip tailgate to the vehicle body from top to bottom.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The present invention cooperates with structures such as a baffle and a rotating assembly, and when a vehicle body collides with the guardrail body, the water inside the arc rod applies pressure to resist the screw, and the screw drives the connecting block to flip the baffle through the rotating shaft, so that the top of the baffle applies top-down pressure to the vehicle body, and the downward pressure on the vehicle body is used to increase the friction effect between the vehicle tire and the road surface, thereby achieving a preliminary anti-collision energy absorption effect.

[0034] The present invention arranges the coordination of structures such as a card plate and a spur gear, and then "decomposes" the guardrail when it is hit, so as to prolong the friction time between the vehicle tire and the road surface. The rotating shaft drives the connecting block to rotate, so that the connecting block engages with the rack on the upper end of the card plate, drives the card plate upward, and releases the locking state of the card plate with the base. As a result, when it is hit, the vertical rod can slide above the base, prolonging the friction between the tire and the road surface, and improving the deceleration force and braking resistance on the vehicle body.

[0035] The present invention cooperates with structures such as a spring telescopic tube and a second connecting tube, so that when the guardrail is hit, the damping fluid is continuously compressed during the process of "decomposition" and movement of the guardrail to increase the downward pressure of the baffle on the vehicle body. The vertical rod moves, compressing the damping fluid inside the spring telescopic tube, so that the damping fluid flows into the interior of the arc rod through the connecting bellows and the second connecting tube, continuously stamping the screw to extrude the rotating shaft, continuously applying pressure to the baffle, and improving the anti-collision energy absorption effect. While the vertical rod moves, the spring telescopic tube and the damping fluid inside will also continuously buffer and absorb energy of the vertical rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the structure of the present invention;

[0037] Figure 2 It is a schematic diagram of the subdivided structure of the guardrail body of the present invention;

[0038] Figure 3 It is a schematic diagram of the structural coordination relationship between the vertical rod and the arc rod of the present invention;

[0039] Figure 4 It is a schematic diagram of the side section structure of the present invention;

[0040] Figure 5 for Figure 4 A schematic diagram of the local enlarged structure at point A in the middle;

[0041] Figure 6 for Figure 4 A schematic diagram of the local enlarged structure at B in the middle;

[0042] Figure 7 for Figure 4 A schematic diagram of the local enlarged structure at C in the middle;

[0043] Figure 8 for Figure 4 A schematic diagram of the local enlarged structure at D in the middle;

[0044] Fig. 9 It is a schematic diagram of the structural matching relationship between the rotating shaft and the positioning tube of the present invention;

[0045] Fig.10 It is a schematic diagram of the subdivided structure of the rotating assembly of the present invention;

[0046] Fig.11 for Fig.10 A schematic diagram of the local enlarged structure at E in the middle;

[0047] Fig.12 It is a schematic diagram of the structural matching relationship between the screw and the rotating shaft of the present invention.

[0048] In the figure: 1. guardrail body; 11. base; 12. vertical rod; 13. connecting rod; 14. protective cover; 15. arc rod; 2. movable module; 21. positioning tube; 22. limiting ring; 3. baffle; 4. compression module; 41. spring telescopic tube; 42. connecting bellows; 43. second connecting tube; 5. rotating assembly; 51. resistance; 511. screw; 512. first spring; 52. rotating shaft; 53. limiting block; 54. connecting block; 55. spur gear; 6. locking assembly; 61. clamping plate; 62. second spring. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] like Figures 1 to 12 As shown, the present invention provides an anti-collision energy-absorbing arc-shaped guardrail for a fork intersection, comprising a guardrail body 1, and also comprising:

[0051] The movable module 2 is installed on both sides of the upper end of the guardrail body 1;

[0052] A baffle 3, which is movably connected to the inner cavity of the movable module 2;

[0053] A compression module 4, which is mounted at the lower end of the guardrail body 1;

[0054] A rotating assembly 5, wherein the rotating assembly 5 is arranged inside the movable module 2;

[0055] The movable module 2 includes a positioning tube 21, one end of which is fixedly connected to the guardrail body 1, and the interior of the positioning tube 21 is movably connected to a limiting ring 22;

[0056] The compression module 4 includes a spring expansion tube 41, one end of the spring expansion tube 41 is fixedly connected to a connecting bellows 42, and one end of the top of the connecting bellows 42 is fixedly connected to a second connecting tube 43;

[0057] The rotating assembly 5 includes a resistance member 51, which is movably connected to the inside of the guardrail body 1. The resistance member 51 also includes a screw 511. The end of the screw 511 away from the guardrail body 1 is threadedly sleeved with a rotating shaft 52, and the outer wall of the rotating shaft 52 is fixedly connected with a connecting block 54. The end of the resistance member 51 away from the rotating shaft 52 is fixedly connected to the baffle 3.

[0058] like Figure 2 and Figure 3 As shown, the guardrail body 1 includes a base 11, and vertical rods 12 are slidably connected to both sides of the top surface of the base 11. The top of the vertical rod 12 is fixedly connected to an arc rod 15, and the arc rod 15 is fixedly connected to the base 11 through a connecting rod 13;

[0059] Protective covers 14 are installed on both sides of the top surface of the base 11 to protect the spring expansion tube 41 and the connecting bellows 42;

[0060] The middle end of the inner cavity of the arc rod 15 is filled with water.

[0061] The above scheme is adopted: the vertical rod 12, the connecting rod 13 and the arc rod 15 are spliced ​​into an arc-shaped guardrail to protect the fork in the road from collision. The arc shape can better adapt to the turning area of ​​the fork in the road. The bottom of the connecting rod 13 is connected to the top surface of the base 11, and the two are not fixed. The connecting rod 13 can be detached from the top surface of the base 11.

[0062] like Figure 2 and Figure 3 As shown, two baffles 3 are provided, both of which are in an "L" shape, and a reflective strip is installed on one side wall of the baffle 3.

[0063] With the above solution, under normal use, the two baffles 3 are in an inverted "L" shape, and one side wall with the reflective strip faces the traffic flow, thereby playing a warning role.

[0064] like Figure 4 and Figure 8 As shown, damping fluid is placed inside the end of the spring expansion tube 41 away from the vertical rod 12, and the upper end of the second connecting tube 43 penetrates the arc rod 15 and extends to the inside of the arc rod 15;

[0065] When the vertical rod 12 is moved and the spring expansion tube 41 is compressed by an external force, the damping fluid in the spring expansion tube 41 will flow into the interior of the arc rod 15 through the connecting bellows 42 and the second connecting tube 43 .

[0066] By adopting the above scheme, when the damping liquid inside the spring expansion tube 41 is squeezed and flows into the interior of the arc rod 15 through the connecting bellows 42 and the second connecting tube 43, the interior of the arc rod 15 will be continuously filled and squeezed with liquid, thereby increasing the impact pressure of the liquid inside the arc rod 15.

[0067] like Figure 4 As shown, the outer side of the connecting bellows 42 is located inside the protective cover 14 , and one end of the connecting bellows 42 close to the vertical rod 12 passes through the protective cover 14 upward.

[0068] The above solution is adopted: under the premise of normal use, the design of the protective cover 14 ensures that the folds of the connecting bellows 42 will not be affected by external impurities and weather reasons during outdoor use, thereby ensuring the normal folding of the subsequent connecting bellows 42.

[0069] like Fig.10 and Fig.11 As shown, both ends of the outer wall of the rotating shaft 52 are sleeved with limit blocks 53, and the two limit blocks 53 are slidably connected to the inside of the arc rod 15 and the positioning tube 21 respectively;

[0070] The end of the rotating shaft 52 away from the arc rod 15 passes through the positioning tube 21 and the vertical rod 12 in sequence and extends to the outside of the vertical rod 12 . A spur gear 55 is fixedly connected to the outer wall of the positioning tube 21 at one end of the inner cavity of the vertical rod 12 .

[0071] Adopting the above scheme: when the screw rod 511 moves to the side away from the arc rod 15, it will be inside the rotating shaft 52. Since the screw rod 511 is slidably connected to the inside of the arc rod 15 and can only move horizontally and cannot rotate, the screw rod 511 will drive the rotating shaft 52 to rotate inside the positioning tube 21 during the horizontal movement. At this time, the limit blocks 53 mounted on both sides of the outer wall of the rotating shaft 52 will limit the rotation of the rotating shaft 52, ensuring that the rotating shaft 52 can only rotate at a fixed point. When the rotating shaft 52 rotates, the limit ring 22 and the baffle 3 will be driven to rotate synchronously through the connecting block 54.

[0072] like Fig.11 As shown, the upper and lower ends of the screw rod 511 are elastically connected to the arc rod 15 through the first spring 512 , and the outer wall of the screw rod 511 is tightly fitted with the inner wall of the arc rod 15 .

[0073] like Figures 4 to 7 As shown, a locking assembly 6 is provided inside the vertical rod 12;

[0074] The locking assembly 6 includes a clamping plate 61 slidably connected to the inside of the vertical rod 12 , and both sides of the clamping plate 61 are elastically connected to the inner cavity of the vertical rod 12 through a second spring 62 , and the bottom end of the clamping plate 61 passes downward and is clamped inside the base 11 .

[0075] like Figure 5 As shown, a rack is installed on a side wall of the upper end of the clamping plate 61 close to the spur gear 55, and the clamping plate 61 is meshed and connected with the spur gear 55 through the rack;

[0076] A through slot is provided at the top of the inner cavity of the vertical rod 12 for moving the clamping plate 61 upward, and a polyester film is installed inside the through slot.

[0077] The above scheme is adopted: when the spur gear 55 rotates, the rack installed on the card plate 61 that meshes with the spur gear 55 will move upward synchronously. At this time, the bottom end of the card plate 61 will disengage upward from the inside of the base 11, releasing the locking effect of the card plate 61 and the base 11. At the same time, the through groove inside the vertical rod 12 allows the card plate 61 to move upward stably without being blocked by the inner cavity of the vertical rod 12. At the same time, the polyester film installed on the through groove will cover the top of the through groove under normal use to prevent external impurities from falling into the inside of the vertical rod 12 through the through groove and obstructing the meshing rack of the spur gear 55 and the card plate 61.

[0078] The present application also proposes a method for using an anti-collision energy-absorbing arc guardrail for a fork in the road, and the method of use is as follows:

[0079] S1. When the guardrail body 1 is hit, the vehicle body hits the arc rod 15 area, and the arc rod 15 is deformed after being hit again. The deformed arc rod 15 causes the water inside to quickly impact to both sides when under pressure;

[0080] S2. The water body will push one end of the screw rod 511 to gradually move to the inside of the rotating shaft 52. When the two come into contact, the rotating shaft 52 will rotate, and the baffle plate 3 will rotate through the connecting block 54, so that the top of the baffle plate 3 will flip from the vertical state to the inclined state, and cause the top area to contact the top of the vehicle body, and exert pressure on the vehicle body from top to bottom. Through this tooth, the friction between the vehicle tire and the ground is increased, so as to increase the anti-collision energy absorption of the guardrail body 1 on the vehicle body;

[0081] S3. When the rotating shaft 52 rotates, the card plate 61 is driven upward through the spur gear 55, and the locking state between the card plate 61 and the base 11 is released. As the vehicle body impacts the guardrail body 1, the vertical rod 12, the connecting rod 13, the arc rod 15, the baffle 3, the compression module 4, the rotating assembly 5 and the locking assembly 6 are forced to move at the same time. At the same time, when the vehicle body impacts the guardrail body 1, the base 11 is released from being fixed;

[0082] S4. At the same time, during the movement of the vertical rod 12, the damping fluid inside the spring expansion tube 41 will be compressed, so that the damping fluid will be reintroduced into the interior of the arc rod 15 through the connecting bellows 42 and the second connecting tube 43, and the pressure of the screw 511 against the rotating shaft 52 will be continuously filled in the interior of the arc rod 15, thereby increasing the resistance force of the flip tailgate 3 to the vehicle body from top to bottom.

[0083] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0084] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-collision energy-absorbing arc-shaped guardrail for a fork in a road, comprising a guardrail body (1), characterized in that: Also includes: A movable module (2), wherein the movable module (2) is installed on both sides of the upper end of the guardrail body (1); A baffle (3), the baffle (3) being movably connected to the inner cavity of the movable module (2); A compression module (4), wherein the compression module (4) is installed at the lower end of the guardrail body (1); A rotating assembly (5), wherein the rotating assembly (5) is arranged inside the movable module (2); The movable module (2) comprises a positioning tube (21), one end of the positioning tube (21) is fixedly connected to the guardrail body (1), and the interior of the positioning tube (21) is movably connected to a limiting ring (22); The compression module (4) comprises a spring expansion tube (41), one end of the spring expansion tube (41) is fixedly connected to a connecting bellows (42), and one end of the top of the connecting bellows (42) is fixedly connected to a second connecting tube (43); The rotating assembly (5) comprises a resistance member (51), the resistance member (51) is movably connected to the interior of the guardrail body (1), the resistance member (51) also comprises a screw rod (511), one end of the screw rod (511) away from the guardrail body (1) is threadedly sleeved with a rotating shaft (52), the outer wall of the rotating shaft (52) is fixedly connected with a connecting block (54), and the end of the resistance member (51) away from the rotating shaft (52) is fixedly connected to the baffle plate (3).

2. The anti-collision energy-absorbing arc guardrail for a fork in the road according to claim 1 is characterized in that: The guardrail body (1) comprises a base (11), both sides of the top surface of the base (11) are slidably connected to vertical rods (12), the top of the vertical rod (12) is fixedly connected to an arc rod (15), and the arc rod (15) is fixedly connected to the base (11) via a connecting rod (13); Protective covers (14) for protecting the spring expansion tube (41) and the connecting bellows (42) are installed on both sides of the top surface of the base (11); The middle end of the inner cavity of the arc rod (15) is filled with water.

3. The anti-collision energy-absorbing arc-shaped guardrail for a fork in the road according to claim 1 is characterized in that: Two baffles (3) are provided, both baffles (3) are in an "L" shape, and a reflective strip is installed on one side wall of the baffle (3).

4. The anti-collision energy-absorbing arc guardrail for a fork in the road according to claim 1 is characterized in that: A damping fluid is placed inside the end of the spring expansion tube (41) away from the vertical rod (12), and the upper end of the second connecting tube (43) penetrates the arc rod (15) and extends to the inside of the arc rod (15); When the vertical rod (12) is moved by an external force to compress the spring expansion tube (41), the damping fluid inside the spring expansion tube (41) will flow into the interior of the arc rod (15) through the connecting bellows (42) and the second connecting tube (43).

5. The anti-collision energy-absorbing arc-shaped guardrail for a fork in the road according to claim 4 is characterized in that: The outer side of the connecting bellows (42) is located inside the protective cover (14), and one end of the connecting bellows (42) close to the vertical rod (12) penetrates the protective cover (14) upwards.

6. The anti-collision energy-absorbing arc-shaped guardrail for a fork in the road according to claim 1 is characterized in that: Both ends of the outer wall of the rotating shaft (52) are sleeved with limit blocks (53), and the two limit blocks (53) are slidably connected to the inside of the arc rod (15) and the positioning tube (21) respectively; The end of the rotating shaft (52) away from the arc rod (15) passes through the positioning tube (21) and the vertical rod (12) in sequence and extends to the outside of the vertical rod (12); the outer wall of the positioning tube (21) at one end of the inner cavity of the vertical rod (12) is fixedly connected to a spur gear (55).

7. The anti-collision energy-absorbing arc-shaped guardrail for a fork in the road according to claim 1 is characterized in that: The upper and lower ends of the screw rod (511) are elastically connected to the arc rod (15) via a first spring (512), and the outer wall of the screw rod (511) is tightly fitted to the inner wall of the arc rod (15).

8. The anti-collision energy-absorbing arc-shaped guardrail for a fork in the road according to claim 2 is characterized in that: A locking assembly (6) is arranged inside the vertical rod (12); The locking assembly (6) comprises a clamping plate (61) slidably connected to the interior of the vertical rod (12); two sides of the clamping plate (61) are elastically connected to the inner cavity of the vertical rod (12) via a second spring (62); and the bottom end of the clamping plate (61) passes downward and is clamped in the interior of the base (11).

9. The anti-collision energy-absorbing arc-shaped guardrail for a fork in the road according to claim 8, characterized in that: A rack is installed on a side wall of the upper end of the clamping plate (61) close to the spur gear (55), and the clamping plate (61) is meshedly connected with the spur gear (55) through the rack; A through slot for moving the clamping plate (61) upward is provided at the top end of the inner cavity of the vertical rod (12), and a polyester film is installed inside the through slot.

10. A method for using an anti-collision energy absorbing curved guardrail for a fork in a road, applied to the anti-collision energy absorbing curved guardrail for a fork in a road as claimed in any one of claims 1 to 9, characterized in that: The method of use is as follows: S1. When the guardrail body (1) is hit, the vehicle body hits the arc rod (15) area, and the arc rod (15) is deformed after being hit again. The deformed arc rod (15) causes the water inside to quickly impact to both sides when under pressure; S2. The water body pushes one end of the screw rod (511) to gradually move into the interior of the rotating shaft (52). When the two come into contact, the rotating shaft (52) rotates and drives the baffle plate (3) to rotate through the connecting block (54), so that the top of the baffle plate (3) turns from a vertical state to an inclined state, and causes the top area to contact the top of the vehicle body, exerting pressure on the vehicle body from top to bottom. Through such teeth, the friction between the vehicle tire and the ground is increased, thereby increasing the anti-collision energy absorption of the guardrail body (1) on the vehicle body; S3, while the rotating shaft (52) rotates, the card plate (61) is driven upward through the spur gear (55), and the locking state between the card plate (61) and the base (11) is released. As the vehicle body impacts the guardrail body (1), the vertical rod (12) together with the connecting rod (13) and the arc rod (15) as well as the baffle (3), the compression module (4), the rotating assembly (5) and the locking assembly (6) are forced to move at the same time. When the vehicle body impacts the guardrail body (1), the base (11) is released from being fixed; S4. Simultaneously, during the movement of the vertical rod (12), the damping fluid inside the spring expansion tube (41) is compressed, so that the damping fluid is introduced into the interior of the arc rod (15) again through the connecting bellows (42) and the second connecting tube (43), and the pressure of the screw rod (511) against the rotating shaft (52) is continuously filled inside the arc rod (15), thereby increasing the resistance force of the flip rear baffle (3) against the vehicle body from top to bottom.

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