Energy-absorbing anti-collision modularly-spliced protective fence

Abstract

According to the technical scheme, the energy-absorbing and anti-collision modularly-spliced protective fence is characterized in that the energy-absorbing and anti-collision modularly-spliced protective fence comprises a plurality of assembled protective fence assemblies, each protective fence assembly comprises a stand column, and vertical supporting rod pieces are fixed to the two sides of each stand column through inclined rod supporting pieces correspondingly; one side of the stand column, one side of the vertical supporting rod piece and one side of the inclined rod supporting piece are jointly and fixedly provided with a guardrail plate face, a buffering structure is arranged between the guardrail plate face and the stand column, and one side of the bottom of the stand column is provided with a stopping structure used for reducing the rotating speed of the wheels. The two guardrail assemblies are connected and fixed through a connecting structure. The energy-absorbing and anti-collision modularly-spliced protective fence has good collision buffering capacity, buffering and energy absorbing can be conducted on an automobile colliding with the protective fence, the rotating speed of wheels is reduced, and the protective capacity of the protective fence can be improved to a certain degree.

Description

Technical Field

[0001] The present invention relates to the technical field of guardrails, and in particular to an energy-absorbing and collision-proof modularly spliced ​​guardrail. Background Art

[0002] As a key facility beside the road, road guardrails are mainly used to protect the safety of pedestrians. They can separate pedestrians from vehicles, thereby protecting the safety of pedestrians. Especially when the traffic is heavy and the road is narrow, road guardrails can effectively prevent pedestrians from being accidentally injured on the road. In addition, road guardrails can also prevent pedestrians from crossing the road at will, ensuring the safety of pedestrians. In addition, guardrails can not only make vehicles travel more orderly on the road, but also effectively avoid collisions between vehicles and traffic accidents. When a traffic accident occurs, road guardrails can also prevent vehicles from running off the road and protect drivers and passengers.

[0003] For example, the existing Chinese patent with publication number CN109252477A discloses a road safety guardrail, including side guardrails and a middle guardrail on both sides of the road, a passage is provided on the side guardrail, the passage divides the side guardrail into a first guardrail section and a second guardrail section, an air pump is embedded in the end face of the first guardrail section, a partition is installed at the passage, one end of the partition is in contact with the first guardrail section and fixed with glue, a recessed cavity is opened on the second guardrail section facing the partition, the partition extends toward the recessed cavity and is buckled into the recessed cavity, a rolling device is provided at the bottom of the partition, the partition is an inflatable airbag, and has an air storage cavity inside, and the partition is inflated by an air pump.

[0004] The above patent has some advantages, but also has some disadvantages, such as: its buffering and anti-collision ability is insufficient and needs to be improved. Summary of the invention

[0005] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide an energy-absorbing and anti-collision modular spliced ​​guardrail to solve the problems mentioned in the background technology.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A modular guardrail for energy absorption and collision prevention comprises a plurality of assembled guardrail components, wherein the guardrail components comprise upright posts, vertical support rods being fixed on both sides of the upright posts respectively via diagonal support members, a guardrail panel being mounted and fixed on one side of the upright posts, a buffer structure being arranged between the guardrail panel and the upright posts, and a stop structure for slowing down the rotation speed of a wheel being arranged on one side of the bottom of the upright posts; two groups of the guardrail components are connected and fixed via a connecting structure, and when the connecting structure fixes the two groups of guardrail components, the vertical support rods in the two groups of the guardrail components are connected and fixed to the guardrail panel at the same time; a stabilization component is arranged on the stop structure, and when the stop structure performs a stopping action, the stabilization component resists and stabilizes the stop structure on the back side of the guardrail panel.

[0007] By adopting the above technical scheme, the energy-absorbing and anti-collision modular spliced ​​guardrail has good collision buffering ability, can buffer and absorb energy for the car that hits the guardrail, and reduce the rotation speed of the wheels, which can improve the protection ability of the guardrail to a certain extent; wherein the energy-absorbing and anti-collision modular spliced ​​guardrail is made by splicing and fixing multiple groups of guardrail components, the columns in each group of guardrail components are deeply buried and can be fixed to the ground with rivets, the diagonal support members and the vertical support rods serve as side supports for the guardrail panel surface, which can provide higher support strength, the buffer structure between the guardrail panel surface and the columns can buffer and absorb energy during collision, and the stop structure at the columns can slow down the rotation speed of the car's tires; in addition, the energy-absorbing and anti-collision modular spliced ​​guardrail has the advantage of easy assembly, and when assembling and fixing using the connecting structure, the vertical support rods and the guardrail panel surface can be assembled and fixed at the same time.

[0008] Preferably, the buffer structure includes a hollow support body, an internal filling body, two embedded parts, two embedded grooves, and two side guards. The hollow support member is fixed to the guardrail panel surface and the column by rivets, the internal filling body is fixed in the hollow support member, the two embedded parts and the two side guards are respectively integrally formed on the hollow support body, the two embedded grooves are respectively symmetrically opened in the column for the embedded parts to be embedded and fixed, and the two side guards are clamped on both sides of the column after the hollow support body is fixed.

[0009] By adopting the above technical solution, the hollow support body in the buffer structure serves as the main buffer structure component, and its internal filling body serves as a buffer to provide buffering in the event of a collision. By utilizing the cooperation of the embedded part and the embedded groove, the column and the hollow support body can be connected and fixed, and the retaining edge part can be clamped on both sides of the column to ensure the stability of the connection and prevent the hollow support body from excessive deformation in the event of a collision.

[0010] Preferably, the hollow support body includes a first curved arch portion and two second curved arch portions, the first curved arch portion is arranged at the contact point between the hollow support body and the column, and the two second curved arch portions are symmetrically arranged in the hollow support body at both side edges of the column.

[0011] By adopting the above technical scheme, the first arch portion and the second arch portion have larger bending section modulus and torsional section modulus respectively. On the one hand, it can improve the bending and torsional strength of the hollow support body, and on the other hand, it can provide a margin for the deformation of the hollow support body, so that it is convenient to deform when the impact intensity is large without losing structural stability.

[0012] Preferably, the stop structure includes a reduction wheel, a first torsion spring, an arcuate extension plate portion and a reduction pattern, the reduction wheel is rotatably connected to the column, the first torsion spring is installed on the outside of the reduction wheel rotation shaft, one end of the first torsion spring is fixed to the speed wheel, the other end of the first torsion spring is fixed to the column, the arcuate extension plate portion is fixed on both sides of the reduction wheel, the reduction pattern is opened on the reduction wheel and the arcuate extension plate portion, and the reduction pattern is opposite to the pattern of the automobile tire.

[0013] By adopting the above technical solution, the reduction wheel in the stop structure is difficult to rotate under normal circumstances under the restriction of the first torsion spring. When the car collides with the guardrail, if the car wheel contacts the stop structure, the stop structure can quickly reduce the rotation speed of the car wheel, thereby achieving the effect of rapid deceleration.

[0014] Preferably, the connecting structure includes a slot, a strip, a spring pin and a plurality of rivets, the slot being provided in one of the vertical support rods in the guardrail assembly, the strip being integrally formed in another vertical support rod in the guardrail assembly, the slots and strips in two adjacent groups of the guardrail assemblies being engaged and fixed to each other, the spring pin being installed in the vertical support rod having the slot, after the strip is inserted into the slot, the spring pin is pushed and inserted into the guardrail board surface for fixation, and the vertical support rods in two adjacent groups of the guardrail assemblies are also reinforced and fixed by rivets.

[0015] By adopting the above technical solution, when the card strip in the connecting structure is inserted into the card slot, the spring pin will be pushed to slide. When the card strip is fully inserted into the card slot, the spring pin is pushed and inserted into the guardrail board surface for fixation. The vertical support rods in the two adjacent guardrail assemblies are also reinforced and fixed by rivets, thereby achieving a linkage locking effect.

[0016] Preferably, a plurality of raised arched buffer structures are provided on the guardrail board surface.

[0017] By adopting the above technical solution, the raised arched buffer structure on the guardrail board surface can increase the bending and torsional strength of the guardrail board surface, and can increase the buffering capacity while increasing the anti-collision ability.

[0018] Preferably, the stabilization assembly includes a transverse support rod, an oblique resistance rod, and a drive rod. The transverse support rod is fixed on the reduction wheel. The oblique resistance rod is integrally formed and fixed with the transverse support rod. The end of the oblique resistance rod is provided with a protective inclined surface. The drive rod is used to push the reinforcement to rotate to a certain angle when the reduction wheel rotates.

[0019] By adopting the above technical solution, when the reduction wheel in the stop assembly slows down the wheel in the event of an accident, the reduction wheel will rotate to a certain extent, thereby driving the lateral support rod and the oblique resistance rod to swing. When the reduction wheel rotates to the extreme position, the reinforced inclined surface on the oblique resistance rod can resist the hollow support body on the buffer structure, thereby improving the bending and torsional resistance of the hollow support body to a certain extent; in addition, when the reduction wheel rotates, it can also drive the drive rod to swing with the swing of the lateral support rod, thereby swinging the reinforcement on the back of the column to a certain angle, thereby forming a support, thereby improving the structural support effect on the column.

[0020] Preferably, a support seat is fixed to the bottom of the column, and a reinforcement piece is hinged to one side of the back of the column; a second torsion spring is installed outside the rotating shaft of the reinforcement piece.

[0021] By adopting the above technical solution, the reinforcement will be tightly attached to one side of the column under the action of the second torsion spring under normal circumstances. When the transverse support rod in the stabilization assembly rotates with the rotation of the reduction wheel, the driving rod on the transverse support rod can push the reinforcement to swing to a certain angle. When the column is deformed by collision, the rotating reinforcement can form a triangular support structure by contacting the ground, thereby improving the protection capability of the entire guardrail.

[0022] Preferably, the cavities of the plurality of raised arched buffer structures are respectively filled with foam.

[0023] By adopting the above technical solution, the filled foam can improve the cushioning effect of the raised arched cushioning structure.

[0024] Preferably, the column is provided with an automatic alarm and rescue system for remote alarm and rescue calling, and the automatic alarm and rescue calling system includes an impact sensor, a DSP controller, a power supply and a remote alarm. The impact sensor is electrically connected to the control input terminal of the DSP controller, and the remote alarm is electrically connected to the control output terminal of the DSP controller. When the impact sensor located in the column senses an impact exceeding a set threshold, the impact sensor produces a high and low level change at the input contact of the DSP sensor, and the DSP controller sends an alarm to the alarm platform and the call platform through the remote alarm.

[0025] In summary, the present invention mainly has the following beneficial effects: The energy-absorbing and anti-collision modular spliced ​​guardrail has good collision buffering capability, can buffer and absorb energy for cars that collide with the guardrail, and can reduce the rotation speed of the wheels, which can improve the protective capability of the guardrail to a certain extent; wherein the energy-absorbing and anti-collision modular spliced ​​guardrail is made by splicing and fixing multiple groups of guardrail components, the columns in each group of guardrail components are deeply buried and can be fixed to the ground with rivets, the diagonal support members and the vertical support rods serve as side supports for the guardrail panel surface, which can provide higher support strength, the buffer structure between the guardrail panel surface and the columns can buffer and absorb energy during collision, and the stop structure at the columns can slow down the rotation speed of the car's tires; in addition, the energy-absorbing and anti-collision modular spliced ​​guardrail has the advantage of easy assembly, and when the connecting structure is used for assembly and fixation, the vertical support rods and the guardrail panel surface can be assembled and fixed at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is one of the structural schematic diagrams of the present invention; Figure 2 yes Figure 1 A is an enlarged schematic diagram; Figure 3 This is the second structural schematic diagram of the present invention; Figure 4 yes Figure 3 The enlarged schematic diagram of point B in FIG. Figure 5 It is the third structural schematic diagram of the present invention; Figure 6 It is the fourth structural schematic diagram of the present invention.

[0027] Figure numerals: 1. guardrail assembly; 11. column; 12. diagonal rod support; 13. vertical support rod; 14. guardrail board surface; 2. buffer structure; 3. stop structure; 4. connection structure; 21. hollow support body; 22. internal filling body; 23. embedded part; 24. embedded groove; 25. retaining edge; 26. first curved arch part; 27. second curved arch part; 31. reduction wheel; 32. arc extension plate; 41. slot; 42. clamping strip; 43. spring pin; 141. raised arch buffer structure; 15. support seat; 16. reinforcement; 5. stabilization assembly; 51. transverse support rod; 52. oblique resistance rod; 53. driving rod. DETAILED DESCRIPTION

[0028] 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. Example

[0029] refer to Figures 1 to 5A kind of energy-absorbing and collision-proof modular splicing guardrail comprises a plurality of assembled guardrail components 1, wherein the guardrail component 1 comprises a column 11, and vertical support rods 13 are fixed on both sides of the column 11 through diagonal support members 12 respectively, and a guardrail panel 14 is installed and fixed on one side of the column 11, the vertical support rods 13 and the diagonal support members 12 together, and a buffer structure 2 is arranged between the guardrail panel 14 and the column 11, and a stop structure 3 for slowing down the wheel speed is arranged on one side of the bottom of the column 11; the two groups of guardrail components 1 are connected and fixed by a connecting structure 4, and when the connecting structure 4 fixes the two groups of guardrail components 1, the vertical support rods 13 and the guardrail panel 14 in the two groups of guardrail components 1 are connected and fixed at the same time; a stabilizing component 5 is arranged on the stop structure 3, and when the stop structure 3 performs a stopping action, the stabilizing component 5 resists and stabilizes the stop structure 3 on the back of the guardrail panel 14. The energy-absorbing and anti-collision modular spliced ​​guardrail has good collision buffering capability, can buffer and absorb energy for cars that collide with the guardrail, and can reduce the rotation speed of the wheels, which can improve the protection capability of the guardrail to a certain extent; wherein the energy-absorbing and anti-collision modular spliced ​​guardrail is made by splicing a plurality of guardrail components 1, the upright posts 11 in each group of guardrail components 1 are deeply buried and can be fixed to the ground with rivets, the diagonal support members 12 and the vertical support rods 13 serve as side supports for the guardrail panel surface 14, and can provide higher support strength, the buffer structure 2 between the guardrail panel surface 14 and the upright posts 11 can buffer and absorb energy during collision, and the stop structure 3 at the upright posts 11 can slow down the rotation speed of the tires of the car; in addition, the energy-absorbing and anti-collision modular spliced ​​guardrail has the advantage of easy assembly, and when the connecting structure 4 is used for assembly and fixation, the vertical support rods 13 and the guardrail panel surface 14 can be assembled and fixed at the same time.

[0030] refer to Figures 1 to 5 , wherein the buffer structure 2 includes a hollow support body 21, an internal filling body 22, two embedded parts 23, two embedded grooves 24, and two retaining edges 25. The hollow support member is fixed to the guardrail board 14 and the column 11 by rivets, the internal filling body 22 is fixed in the hollow support member, the two embedded parts 23 and the two retaining edges 25 are respectively integrally formed on the hollow support body 21, and the two embedded grooves 24 are respectively symmetrically opened in the column 11 for the embedded parts 23 to be embedded and fixed. The two retaining edges 25 are clamped on both sides of the column 11 after the hollow support body 21 is fixed; the hollow support body 21 in the buffer structure 2 is used as the main body of the buffer structure 2, and its internal filling body 22 is used as a buffer to provide buffering in the event of a collision. By using the cooperation of the embedded part 23 and the embedded groove 24, the connection and fixation of the column 11 and the hollow support body 21 can be achieved, and the retaining edges 25 can be clamped on both sides of the column 11, which can ensure the connection stability and prevent the hollow support body 21 from excessive deformation in the event of a collision.

[0031] refer to Figures 1 to 5The hollow support body 21 includes a first arch portion 26 and two second arch portions 27. The first arch portion 26 is arranged at the contact point between the hollow support body 21 and the column 11, and the two second arch portions 27 are symmetrically arranged at the two side edges of the column 11 in the hollow support body 21. The first arch portion 26 and the second arch portion 27 have large bending section modulus and torsional section modulus, respectively. On the one hand, the bending and torsional strength of the hollow support body 21 can be improved. On the other hand, a margin can be provided for the deformation of the hollow support body 21, so that it is convenient to deform when the impact intensity is large without losing structural stability.

[0032] refer to Figures 1 to 5 The stop structure 3 includes a reduction wheel 31, a first torsion spring, an arc-shaped extension plate portion 32 and a reduction pattern. The reduction wheel 31 is rotatably connected to the column 11. The first torsion spring is installed on the outside of the rotation axis of the reduction wheel 31. One end of the first torsion spring is fixed to the speed wheel, and the other end of the first torsion spring is fixed to the column 11. The arc-shaped extension plate portion 32 is fixed on both sides of the reduction wheel 31. The reduction pattern is provided on the reduction wheel 31 and the arc-shaped extension plate portion 32, and the reduction pattern is opposite to the pattern of the automobile tire. The reduction wheel 31 in the stop structure 3 is difficult to rotate under normal circumstances under the restriction of the first torsion spring. When the automobile collides with the guardrail, if the automobile wheel contacts the stop structure 3, the stop structure 3 can quickly reduce the rotation speed of the automobile wheel, thereby achieving the effect of rapid deceleration.

[0033] refer to Figures 1 to 5 , wherein the connecting structure 4 includes a slot 41, a strip 42, a spring pin 43 and a plurality of rivets, the slot 41 is provided in one of the vertical support rods 13 in the guardrail assembly 1, the strip 42 is integrally formed in another vertical support rod 13 in the guardrail assembly 1, the slots 41 and the strips 42 in the two adjacent groups of guardrail assemblies 1 are mutually engaged and fixed, the spring pin 43 is installed in the vertical support rod 13 with the slot 41, and after the strip 42 is inserted into the slot 41, the spring pin 43 is pushed It is inserted into the guardrail board surface 14 for fixation, and the vertical support rods 13 in the two adjacent groups of guardrail components 1 are also reinforced and fixed by rivets. When the clamping strip 42 in the connecting structure 4 is inserted into the clamping slot 41, the spring pin 43 will be pushed to slide. When the clamping strip 42 is fully inserted into the clamping slot 41, the spring pin 43 is pushed and inserted into the guardrail board surface 14 for fixation. The vertical support rods 13 in the two adjacent groups of guardrail components 1 are also reinforced and fixed by rivets, so as to achieve the effect of linkage locking.

[0034] refer to Figures 1 to 5, wherein a plurality of raised arched buffer structures 141 are arranged on the guardrail panel surface 14, and the raised arched buffer structures 141 on the guardrail panel surface 14 can increase the bending and torsional strength of the guardrail panel surface 14, and can increase the buffering capacity while increasing the anti-collision ability. A support seat 15 is fixed to the bottom of the column 11, and a reinforcement member 16 is hinged on one side of the back of the column 11. The arrangement of the reinforcement member 16 can increase the strength of the column 11 and increase its fracture limit. The cavities of the plurality of raised arched buffer structures 141 are respectively filled with foam, and the filled foam can improve the buffering effect of the raised arched buffer structure 141.

[0035] refer to Figures 1 to 5 A second torsion spring is installed outside the rotating shaft of the reinforcement 16. Under normal circumstances, the reinforcement 16 will be tightly attached to one side of the column 11 under the action of the second torsion spring. When the transverse support rod 51 in the stabilization component 5 rotates with the rotation of the reduction wheel 31, the driving rod 53 on the transverse support rod 51 can push the reinforcement 16 to swing to a certain angle. When the column 11 collides and deforms, the rotating reinforcement 16 can form a triangular support structure by contacting the ground, thereby improving the protection capability of the entire guardrail.

[0036] refer to Figures 1 to 5 The stabilizing component 5 includes a transverse support rod 51, an oblique resistance rod 52, and a driving rod 53. The transverse support rod 51 is fixed on the reduction wheel 31. The oblique resistance rod 52 is integrally formed and fixed with the transverse support rod 51. The end of the oblique resistance rod 52 is provided with a protective inclined surface. The driving rod 53 is used to push the reinforcement 16 to rotate to a certain angle when the reduction wheel 31 rotates. When the reduction wheel 31 in the stop assembly 3 slows down the wheel in the event of an accident, the reduction wheel 31 will rotate to a certain extent, thereby driving the lateral support rod 51 and the oblique resistance rod 52 to swing. When the reduction wheel 31 rotates to the extreme position, the reinforced inclined surface on the oblique resistance rod 52 can resist the hollow support body 21 on the buffer structure 2, thereby improving the bending and torsional resistance of the hollow support body 21 to a certain extent; in addition, when the reduction wheel 31 rotates, it can also drive the driving rod 53 to swing with the swing of the lateral support rod 51, thereby swinging the reinforcement 16 on the back of the column 11 to a certain angle, thereby forming a support, thereby improving the structural support effect on the column 11.

[0037] refer to Figures 1 to 5 , the principles and advantages of the present invention are as follows: The energy-absorbing and anti-collision modular splicing guardrail has good collision buffering ability. It can buffer and absorb energy for cars that collide with the guardrail, and reduce the rotation speed of the wheels, which can improve the protection ability of the guardrail to a certain extent. The energy-absorbing and anti-collision modular splicing guardrail is made by splicing multiple groups of guardrail components 1. During splicing, when the card strip 42 in the connecting structure 4 is inserted into the card slot 41, the spring pin 43 will be pushed to slide. When the card strip 42 is fully inserted into the card slot 41, the spring pin 43 is pushed and inserted into the guardrail board surface 14 for fixation. The vertical support rods 13 in the two adjacent groups of guardrail components 1 are also reinforced and fixed by rivets, so as to achieve the effect of linkage locking. The columns 11 in each group of guardrail components 1 are deeply buried and can be fixed to the ground with rivets. The oblique rod support 12 and the vertical support rod 13 serve as side supports of the guardrail board surface 14, which can provide It provides higher support strength, and the buffer structure 2 between the guardrail board surface 14 and the column 11 can buffer and absorb energy during collision; the hollow support body 21 in the buffer structure 2 serves as the main buffer structure 2, and its internal filling body 22 serves as a buffer to provide buffering during collision. The embedded part 23 and the embedded groove 24 cooperate to achieve the connection and fixation between the column 11 and the hollow support body 21. The retaining edge part 25 can be stuck on both sides of the column 11 to ensure the stability of the connection and prevent the hollow support body 21 from excessive deformation during collision; the stop structure 3 at the column 11 can slow down the tire rotation speed of the car. The reduction wheel 31 in the stop structure 3 is difficult to rotate under normal circumstances under the restriction of the first torsion spring. When the car collides with the guardrail, if the car wheel contacts the stop structure 3, the stop structure 3 can quickly reduce the rotation speed of the car wheel, thereby achieving the effect of rapid deceleration. When the reduction wheel 31 in the stop assembly 3 slows down the wheel in the event of an accident, the reduction wheel 31 will rotate to a certain extent, thereby driving the lateral support rod 51 and the oblique resistance rod 52 to swing. When the reduction wheel 31 rotates to the extreme position, the reinforced inclined surface on the oblique resistance rod 52 can resist the hollow support body 21 on the buffer structure 2, thereby improving the bending and torsional resistance of the hollow support body 21 to a certain extent; in addition, when the reduction wheel 31 rotates, it can also drive the driving rod 53 to swing with the swing of the lateral support rod 51, thereby swinging the reinforcement 16 on the back of the column 11 to a certain angle, thereby forming a support, thereby improving the structural support effect on the column 11.In addition, when the guardrail is subjected to severe collision and impact in an accident, the automatic alarm and rescue system for remote alarm and rescue arranged in the column 11 can achieve the effect of remote alarm and rescue; the automatic alarm and rescue system includes an impact sensor, a DSP controller, a power supply and a remote alarm, the impact sensor is electrically connected to the control input end of the DSP controller, and the remote alarm is electrically connected to the control output end of the DSP controller. When the impact sensor located in the column 11 senses an impact exceeding the set threshold, the impact sensor produces a high and low level change at the input contact of the DSP sensor, and the DSP controller sends an alarm to the alarm platform and the call platform through the remote alarm, thereby achieving the purpose of alarm and rescue.

[0038] 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 energy-absorbing and collision-proof modular spliced ​​guardrail, comprising a plurality of assembled guardrail assemblies (1), wherein the guardrail assemblies (1) include upright posts (11), characterized in that: Vertical support rods (13) are fixed to both sides of the upright post (11) through diagonal support rods (12), and a guardrail panel (14) is installed and fixed to one side of the upright post (11), the vertical support rod (13) and the diagonal support rod (12). A buffer structure (2) is provided between the guardrail panel (14) and the upright post (11), and a stopper structure (3) for slowing down the wheel rotation speed is provided on one side of the bottom of the upright post (11); two groups of guardrail components The two guardrail assemblies (1) are connected and fixed by a connecting structure (4); when the connecting structure (4) fixes the two guardrail assemblies (1), the vertical support rods (13) in the two guardrail assemblies (1) are connected and fixed to the guardrail board surface (14) at the same time; a stabilizing assembly (5) is arranged on the stop structure (3); when the stop structure (3) performs a stopping action, the stabilizing assembly (5) resists and stabilizes the stop structure (3) on the back side of the guardrail board surface (14).

2. The energy-absorbing and anti-collision modular splicing guardrail according to claim 1 is characterized by: The buffer structure (2) comprises a hollow support body (21), an internal filling body (22), two embedded parts (23), two embedded grooves (24), and two retaining edge parts (25); the hollow support member is fixed to the guardrail plate surface (14) and the column (11) by rivets; the internal filling body (22) is fixed in the hollow support member; the two embedded parts (23) and the two retaining edge parts (25) are respectively integrally formed on the hollow support body (21); the two embedded grooves (24) are respectively symmetrically arranged in the column (11) for the embedded parts (23) to be embedded and fixed; and the two retaining edge parts (25) are clamped on both sides of the column (11) after the hollow support body (21) is fixed.

3. The energy-absorbing and anti-collision modular spliced ​​guardrail according to claim 2 is characterized by: The hollow support body (21) comprises a first curved arch portion (26) and two second curved arch portions (27); the first curved arch portion (26) is arranged at the contact point between the hollow support body (21) and the column (11); and the two second curved arch portions (27) are symmetrically arranged in the hollow support body (21) at two side edges of the column (11).

4. The energy-absorbing and anti-collision modular spliced ​​guardrail according to claim 1 is characterized by: The stop structure (3) comprises a reduction wheel (31), a first torsion spring, an arc-shaped extension plate (32) and a reduction pattern. The reduction wheel (31) is rotatably connected to the column (11). The first torsion spring is installed outside the rotation axis of the reduction wheel (31). One end of the first torsion spring is fixed to the speed wheel, and the other end of the first torsion spring is fixed to the column (11). The arc-shaped extension plate (32) is fixed to both sides of the reduction wheel (31). The reduction pattern is provided on the reduction wheel (31) and the arc-shaped extension plate (32), and the reduction pattern is opposite to the pattern of the automobile tire.

5. The energy-absorbing and anti-collision modular spliced ​​guardrail according to claim 1 is characterized by: The connection structure (4) comprises a slot (41), a clip strip (42), a spring pin (43) and a plurality of rivets; the slot (41) is provided in one of the vertical support rods (13) in the guardrail assembly (1); the clip strip (42) is integrally formed in another vertical support rod (13) in the guardrail assembly (1); the slots (41) and the clip strips (42) in two adjacent groups of the guardrail assemblies (1) are mutually engaged and fixed; the spring pin (43) is installed in the vertical support rod (13) provided with the slot (41); after the clip strip (42) is inserted into the slot (41), the spring pin (43) is pushed and inserted into the guardrail plate surface (14) for fixing; the vertical support rods (13) in two adjacent groups of the guardrail assemblies (1) are also reinforced and fixed by rivets.

6. The energy-absorbing and collision-proof modular spliced ​​guardrail according to claim 5, characterized in that: A plurality of raised arched buffer structures (141) are provided on the guardrail panel surface (14); a support seat (15) is fixed to the bottom of the column (11); a reinforcing member (16) is hingedly connected to one side of the back of the column (11); and a second torsion spring is installed outside the rotating shaft of the reinforcing member (16).

7. The energy-absorbing and collision-proof modular spliced ​​guardrail according to claim 1 is characterized by: The stabilizing assembly (5) comprises a transverse support rod (51), an oblique abutment rod (52), and a driving rod (53); the transverse support rod (51) is fixed on the reduction wheel (31); the oblique abutment rod (52) is integrally formed and fixed with the transverse support rod (51); a protective inclined surface is provided at the end of the oblique abutment rod (52); and the driving rod (53) is used to push the reinforcement member (16) to rotate to a certain angle when the reduction wheel (31) rotates.

8. The energy-absorbing and collision-proof modular spliced ​​guardrail according to claim 6, characterized in that: The cavities of the plurality of raised arched buffer structures (141) are respectively filled with foam.

9. The energy-absorbing and collision-proof modular spliced ​​guardrail according to claim 6, characterized in that: The column (11) is provided with an automatic alarm and rescue system for remote alarm and rescue calling, and the automatic alarm and rescue calling system includes an impact sensor, a DSP controller, a power supply and a remote alarm. The impact sensor is electrically connected to the control input end of the DSP controller, and the remote alarm is electrically connected to the control output end of the DSP controller. When the impact sensor located in the column (11) senses an impact exceeding a set threshold, the impact sensor generates a high and low level change at the input contact of the DSP sensor, and the DSP controller sends an alarm to the alarm platform and the call platform through the remote alarm.

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