A self-resetting prefabricated crash barrier

Abstract

This invention belongs to the field of guardrail technology, specifically a self-resetting assembled crash barrier, comprising several bases fixedly installed on the ground, and further comprising: protective piles rotatably installed on the bases; a sliding plate slidably installed on the bases, the sliding plate engaging with the protective piles; several sliding holes formed in the sliding plate; several bolts threaded onto the bases, the bolts passing through the sliding holes; and square sleeves installed on the outside of the bolts, the square sleeves protecting the bolts; the impact load on the protective piles is converted into a horizontal thrust of the sliding plate onto the square sleeves. Compared to the vertical thrust on the bolts of existing guardrails, this method reduces the possibility of bolts detaching from the base during an impact, increases the probability of the protective piles intercepting vehicles after an impact, and ensures the safety of the road on the side of the guardrail not impacted.

Description

Technical Field

[0001] This invention belongs to the field of guardrails, specifically a self-resetting assembled anti-collision guardrail. Background Technology

[0002] Crash barriers are commonly used for the protection of equipment and facilities in roads, factories, and workshops. On roads, crash barriers can isolate and protect vehicles and pedestrians. When a vehicle collides or overturns, the crash barriers can restrict the vehicle's movement and prevent pedestrians and other vehicles from being injured.

[0003] A patent application with publication number CN217298728U discloses a self-resetting prefabricated prestressed anti-collision guardrail, which includes several protective piles and a base. The protective piles are connected by prestressed tendons. A connecting seat is provided at the bottom of the protective pile. A steel base plate is provided at the bottom of the connecting seat. Several through holes are opened in the steel base plate. An anchor rod is installed in the through holes. The bottom of the anchor rod is fixedly connected to the base. A spring and a limiting nut are provided on the anchor rod. The spring is located between the steel base plate and the base.

[0004] After the protective pile of the above scheme is impacted, the bottom steel plate and limit nut on the impacted side can move upward along the smooth section. The threaded section will prevent the steel plate and nut from moving upward. After the load generated by the external impact is removed, the entire guardrail will continue to reach the original equilibrium state through gravity and spring. After the guardrail is impacted, the bottom steel plate and limit nut on the impacted side will be subjected to an upward pulling force. The anchor rod on the impacted side is easily pulled upward by the nut, so the protective pile may tilt, which will make the road safety on the other side of the road impossible to guarantee.

[0005] Therefore, the present invention provides a self-resetting assembled crash barrier. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The self-resetting assembled anti-collision guardrail of the present invention includes several bases, which are fixedly installed on the ground, and further includes: protective piles rotatably installed on the bases; two sets of telescopic block groups installed on the protective piles, each telescopic block group including two telescopic blocks symmetrically arranged vertically; a round rod rotatably installed on the telescopic blocks; a concave plate fixedly installed on the round rod, the concave plate being used to connect each of the protective piles; a sliding plate slidably installed on the bases, the sliding plate engaging with the protective piles; several sliding holes formed on the sliding plate; several bolts threadedly connected to the bases, the bolts passing through the sliding holes; and a square sleeve installed on the outside of the bolts, the square sleeve being used to protect the bolts.

[0008] Preferably, it also includes a plurality of first springs installed on the sliding hole, one end of the first spring being fixedly connected to the sliding hole, and the other end of the first spring being fixedly connected to the square sleeve.

[0009] Preferably, it further includes two protective plates rotatably mounted on the base, the base and the protective plates forming a hollow equilateral trapezoid.

[0010] Preferably, the assembly further includes: a connecting plate fixedly installed between each of the protective piles; a plurality of rings slidably installed on the connecting plate; a cylindrical block installed on the rings; two steel cables fixedly installed inside the cylindrical blocks; a plurality of fixing components installed between two vertically symmetrical concave plates, the fixing components including: an insert block installed between the two vertically symmetrical concave plates, the insert block being telescopic; a small disc installed on the insert block; a clamping plate slidably installed on the small disc, the clamping plate being used to clamp the end of the steel cable; a rack plate slidably installed inside the small disc, the rack plate being engaged with the clamping plate; a second spring installed between the rack plate and the small disc; and a square shell detachably installed on the insert block.

[0011] Preferably, the cylindrical block is rotatably connected to the ring, the insert block is slidably connected to the concave plate, and square tubes are detachably installed on the square shells of two adjacent fixing components, with each fixing component connected to the other via the square tubes.

[0012] Preferably, the fixing component further includes: a plurality of insertion holes formed on the small disc; and a plug rod slidably mounted on the plug block, wherein the small disc is rotatably connected to the plug block, and the plug rod is used to fix the small disc.

[0013] Preferably, it further includes: a short rod fixedly installed on the cylindrical block; a parallel plate for driving the short rod to rotate around the axis of the cylindrical block, the parallel plate being slidably connected to the short rod and the parallel plate being slidably connected vertically to the protective pile; a driving assembly for driving the parallel plate to move up and down, the driving assembly including: a support plate fixedly installed on the base; a rotating plate rotatably installed on the support plate, the other end of the rotating plate being slidably connected vertically to the side wall of the protective pile; and an I-beam rotatably installed on the rotating plate, the parallel plate being inserted into the I-beam.

[0014] Preferably, the device further includes a reset assembly, which comprises: a plurality of rotating rods fixedly mounted on the concave plate; a pull rope wound around the rotating rods, one end of the pull rope being fixed to the rotating rods and the other end of the pull rope being connected to the square shell; a circular shell mounted on the concave plate, with the rotating rods located inside the circular shell; and a torsion spring mounted between the circular shell and the rotating rods.

[0015] Preferably, the square tube is telescopic, and a No. 3 spring is installed inside the square tube.

[0016] Preferably, the protective pile is symmetrically equipped with two sets of telescopic block groups, round rods, concave plates, parallel plates, rings, cylindrical blocks, short rods, fixing components, steel cables, square tubes, and reset components.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The self-resetting prefabricated crash barrier of the present invention addresses the problem that, when existing crash barriers are impacted, the bottom steel plate and limiting nut on the impacted side are subjected to an upward pulling force. The anchor rod on the impacted side is easily pulled upward by the nut, which may cause the guard post to tilt, compromising the safety of the road on the other side. By setting up a guard post and sliding plate that rotate relative to the base, the load of the guard post after impact is converted into a horizontal thrust of the sliding plate on several sides. Compared with the vertical thrust of the bolts of existing guardrails, this method reduces the possibility of the bolts falling off the base during an impact, increases the probability of the guard post blocking the vehicle after an impact, ensures the safety of the road on the side of the guardrail not impacted, and improves the above-mentioned problems.

[0019] 2. The self-resetting prefabricated anti-collision guardrail of the present invention uses clamps to hold the steel cable. When the steel cable is damaged by an impact, the rack plate slides upward and downward so that the rack plate is no longer in contact with the clamps. Then the two clamps can slide left and right in opposite directions until the clamps are no longer in contact with the steel cable. Then a new steel cable, ring and cylindrical block can be installed on the fixing component. If the fixing component is damaged, the insert can be retracted up and down, and then the insert can be removed and a new fixing component can be installed. It is convenient to use. With the help of the rotating small disc, the steel cable is wound around the clamps several times, which reduces the possibility of the steel cable falling off the clamps after an impact.

[0020] 3. The self-resetting prefabricated crash barrier of the present invention, by setting a sliding fixed component, when the steel cable is impacted, controls the rotation of the cylindrical block at the impact point, causing a group of steel cables and four fixed components to change, driving the surrounding steel cables and four fixed components to move closer to the impact point. This makes the steel cables converge around the impact point when impacted, increasing the number of steel cables impacted during the impact, dispersing the impact load on individual steel cables, and reducing the possibility of steel cable breakage. With the help of the drive component, the rotation of the protective pile drives the cylindrical block to rotate, eliminating the need for an additional power source to drive the cylindrical block to rotate, making it convenient to use.

[0021] 4. The self-resetting prefabricated crash barrier of this invention, if the barrier is involved in multiple collisions simultaneously, will cause the multiple steel cables on the barrier to twist, resulting in the cylindrical blocks, steel cables, and fixing components on the protective posts at both ends of the barrier sliding to the middle, causing the steel cables at both ends of the barrier to be missing. If an impact occurs at that point, the road protection capability at that point will decrease. By setting a retractable square tube, the cylindrical blocks, steel cables, and fixing components in the range far from the impact point will not be displaced, ensuring that the protective posts at both ends contain steel cables, thus ensuring the road protection function of the protective posts at both ends. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a perspective view of Embodiment 1 of the present invention;

[0024] Figure 2 yes Figure 1 Enlarged view of a portion of point A in the middle;

[0025] Figure 3 This is a schematic diagram of the steel cable and cylindrical block of the present invention;

[0026] Figure 4 This is a schematic diagram of the parallel plate and short rod of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the round rod and telescopic block of the present invention.

[0028] Figure 6 This is a schematic diagram of the rotating rod and pull rope of the present invention;

[0029] Figure 7 This is an exploded view of the fixing component of the present invention;

[0030] Figure 8 yes Figure 4 Enlarged view of a section at point B in the middle;

[0031] Figure 9 This is a schematic diagram of the square tube and spring No. 3 of the present invention;

[0032] In the diagram: 1. Base; 2. Protective pile; 3. Concave plate; 4. Sliding plate; 5. Sliding hole; 6. Bolt; 7. Square sleeve; 8. Spring No. 1; 9. Protective plate; 10. Connecting plate; 11. Ring; 12. Cylindrical block; 13. Steel cable; 14. Fixing assembly; 141. Insert block; 142. Small disc; 143. Clamping plate; 144. Rack plate; 145. Spring No. 2; 146. Square shell; 147. Insertion hole; 148. Insert rod; 15. Square tube; 16. Short rod; 17. Parallel plate; 18. Drive assembly; 181. Support plate; 182. Rotating plate; 183. I-beam plate; 19. Reset assembly; 191. Rotating rod; 192. Pull rope; 193. Round shell; 194. Torsion spring; 20. Spring No. 3; 21. Telescopic block; 22. Round rod. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0034] Example 1

[0035] like Figure 1-9 As shown in the figure, a self-resetting prefabricated anti-collision guardrail according to an embodiment of the present invention includes several bases 1, which are fixedly installed on the ground, and further includes: protective piles 2 rotatably installed on the bases 1; two sets of telescopic block groups installed on the protective piles 2, each telescopic block group including two telescopic blocks 21 symmetrically arranged vertically; round rods 22 rotatably installed on the telescopic blocks 21; concave plates 3 fixedly installed on the round rods 22, and the protective piles 2 are connected to each other through the concave plates 3; sliding plate 4 slidably installed on the bases 1, and the sliding plate 4 is engaged with the protective piles 2; several sliding holes 5 opened on the sliding plate 4; several bolts 6 threadedly connected to the bases 1, the bolts 6 passing through the sliding holes 5; and square sleeves 7 installed on the outside of the bolts 6, the square sleeves 7 being used to protect the bolts 6.

[0036] Specifically, since the concave plate 3 is rotatably connected to the telescopic block 21 via the round rod 22, the concave plate 3 can rotate relative to the telescopic block 21 when the rotation angles of two adjacent protective piles 2 are different. Furthermore, the different rotation angles of the protective piles 2 result in different heights at both ends of the concave plate 3, causing the telescopic block 21 to expand and contract in the vertical plane, preventing the concave plate 3 from breaking due to the torsion of the two adjacent protective piles 2. When the existing guardrail is impacted, the bottom steel plate and limiting nut on the impact side will be subjected to an upward pulling force. The anchor rod on the impact side is easily pulled upward by the nut, thus the protective pile 2 may tilt, compromising road safety on the other side of the road. After the protective pile 2 is impacted, it rotates relative to the base 1. This rotation causes the sliding plate 4 to move back and forth relative to the base 1. After the sliding plate 4 is displaced, it will contact the square sleeve 7 and exert a forward or backward thrust on the square sleeve 7. In other words, the load after the protective pile 2 is impacted is converted into a horizontal thrust of the sliding plate 4 on several square sleeves 7. Compared with the vertical thrust of the bolts 6 of the existing guardrail, this method reduces the possibility of the bolts 6 falling off the base 1 during the impact, increases the probability of the protective pile 2 blocking the vehicle after the impact, ensures the safety of the road on the side of the protective pile 2 that is not impacted, and improves the above-mentioned problems.

[0037] like Figure 1-2 As shown, it also includes several first springs 8 installed on the sliding hole 5. One end of the first spring 8 is fixedly connected to the sliding hole 5, and the other end of the first spring 8 is fixedly connected to the square sleeve 7.

[0038] Specifically, the rotation angle between the concave plate 3 and the telescopic block 21 is limited by the round rod 22. After the protective pile 2 is impacted, if the impacted protective pile 2 rotates, the adjacent protective pile 2 does not rotate. When the first spring 8 in the sliding hole 5 on the impacted protective pile 2 is compressed and can no longer retract, the round rod 22 and the telescopic block 21 no longer rotate. The impact load generated thereafter can be distributed to the adjacent protective pile 2 through the concave plate 3. After being impacted, the sliding plate 4 slides horizontally back and forth, while the square tube 15 and the bolt 6 remain stationary. Therefore, the first spring 8 in the sliding hole 5 deforms. During the deformation process of the first spring 8, the kinetic energy of the sliding plate 4 is converted into the elastic potential energy of the first spring 8, which consumes the impact energy of the protective pile 2. When the external load is removed, the elastic force of all the first springs 8 continues to reach the original equilibrium state, thereby achieving the purpose of automatic reset.

[0039] like Figure 1-2 As shown, it also includes two protective plates 9 rotatably mounted on the base 1, and the base 1 and the protective plates 9 form a hollow equilateral trapezoid.

[0040] Specifically, by setting up the guard plate 9, the bottom of the skateboard 4 and the protective post 2 are protected, so as to avoid the problem that when the base 1 is hit, the impacting object directly contacts the bottom of the skateboard 4 and the protective post 2, causing damage to the bottom of the skateboard 4 and the protective post 2 and preventing the protective post 2 from failing to perform its anti-collision function.

[0041] like Figure 3-7 As shown, it also includes: a connecting plate 10 fixedly installed between each of the protective piles 2; a plurality of rings 11 slidably installed on the connecting plate 10; a cylindrical block 12 installed on the ring 11; two steel cables 13 fixedly installed inside the cylindrical block 12; a plurality of fixing components 14 installed between two vertically symmetrical concave plates 3, the fixing components 14 including: an insert block 141 installed between the two vertically symmetrical concave plates 3, the insert block 141 being telescopic; a small disc 142 installed on the insert block 141; a clamping plate 143 slidably installed on the small disc 142, the clamping plate 143 being used to clamp the end of the steel cable 13; a rack plate 144 slidably installed inside the small disc 142, the rack plate 144 being meshed with the clamping plate 143; a second spring 145 installed between the rack plate 144 and the small disc 142; and a square shell 146 detachably installed on the insert block 141.

[0042] Specifically, the insert 141 is telescopic, facilitating its insertion between or removal from the two recesses 3. The rack plate 144 prevents the clamping plate 143 from moving backwards. During installation, the two ends of the two steel cables 13 fixedly mounted on the cylindrical block 12 are placed between the clamping plates 143 of the four sets of fixing components 14. Figure 5 In the middle, the two clamping plates 143 slide left and right in a relatively close direction until the clamping plates 143 clamp the steel cable 13. After the clamping plates 143 clamp the steel cable 13, the square shell 146 is put on the outside of the clamping plates 143. Then, the insert block 141 of the fixing component 14 is installed between the two concave plates 3. After the installation is completed, the two steel cables 13 and the fixing component 14 are as follows. Figure 3-4 As shown, when the steel cable 13 is damaged by an impact, the square shell 146 can be removed. Then, the rack plate 144 can be slid upward and downward simultaneously until the rack plate 144 and the clamping plate 143 are no longer in contact. Then, the two clamping plates 143 can be slid left and right in a direction away from each other until the clamping plates 143 and the steel cable 13 are no longer in contact. Then, the new steel cable 13, the ring 11 and the cylindrical block 12 can be installed on the fixing component 14. If the fixing component 14 is damaged, the insert block 141 can be retracted up and down. Then, the insert block 141 can be removed and replaced with a new fixing component 14. After damage, only the local parts need to be replaced, which is convenient to use.

[0043] like Figure 3-7As shown, the cylindrical block 12 is rotatably connected to the ring 11, the insert block 141 is slidably connected to the concave plate 3, and square tubes 15 are detachably installed on the square shells 146 of two adjacent fixing components 14, and each fixing component 14 is connected to the other through the square tubes 15.

[0044] Specifically, when the steel cable 13 is impacted, the cylindrical block 12 at the point of impact is rotated, causing the middle of the steel cable 13 to twist. As a result, the length of the steel cable 13 from the cylindrical block 12 to the fixing component 14 is reduced, and the fixing component 14 slides horizontally relative to the concave plate 3. Since the fixing components 14 are connected by square tubes 15, the change in a group of steel cables 13 and four fixing components 14 will cause the surrounding steel cables 13 and the four fixing components 14 to move closer to that point. This makes the steel cables 13 converge around the point of impact when impacted, increasing the number of steel cables 13 impacted during the impact, dispersing the impact load on a single steel cable 13, and reducing the possibility of the steel cable 13 breaking upon impact.

[0045] like Figure 7 As shown, the fixing component 14 further includes: a plurality of insertion holes 147 formed on the small disc 142; and an insertion rod 148 slidably mounted on the insertion block 141. The small disc 142 is rotatably connected to the insertion block 141, and the insertion rod 148 is used to fix the small disc 142.

[0046] Specifically, after the clamping plate 143 holds the steel cable 13, the small disc 142 and the clamping plate 143 are rotated around the axis of the small disc 142, and the steel cable 13 is wound around the clamping plate 143 several times. After the winding is completed, the sliding rod 148 is inserted into the insertion hole 147 of the small disc 142, so that the small disc 142 can no longer rotate. By winding the steel cable 13 around the clamping plate 143 several times, the possibility of the steel cable 13 falling off the clamping plate 143 after being impacted is reduced.

[0047] like Figure 1 , 4 As shown in Figure 8, the system further includes: a short rod 16 fixedly mounted on the cylindrical block 12; a parallel plate 17 that drives the short rod 16 to rotate around the axis of the cylindrical block 12, the parallel plate 17 being slidably connected to the short rod 16 and the protective pile 2 being slidably connected vertically; and a driving assembly 18 that drives the parallel plate 17 to move vertically, the driving assembly 18 including: a support plate 181 fixedly mounted on the base 1; a rotating plate 182 rotatably mounted on the support plate 181, the other end of the rotating plate 182 being slidably connected vertically to the side wall of the protective pile 2; and an I-beam 183 rotatably mounted on the rotating plate 182, the parallel plate 17 being inserted into the I-beam 183.

[0048] Specifically, the I-beam 183 rotates relative to the rotating plate 182 to ensure that the I-beam 183 remains stationary relative to the parallel plate 17 after the rotating plate 182 rotates. When the protective pile 2 rotates, it causes one end of the rotating plate 182 to displace. Since the other end of the rotating plate 182 is rotatably connected to the support plate 181 and does not displace, the rotating plate 182 rotates around the connection point with the support plate 181. Because the rotation radius of the protective pile 2 is greater than the rotation radius of the rotating plate 182, the rotating plate 182 and... One end of the protective pile 2 moves downward relative to the protective pile 2, causing the I-beam plate 183 to move downward, which in turn causes the parallel plate 17 to move downward. This causes the short rod 16 on the parallel plate 17 to rotate downward with the center of the ring 11 as the midpoint. The rotation of the short rod 16 causes the cylindrical block 12 to rotate. The rotation of the cylindrical block 12 causes part of the steel cable 13 on the cylindrical block 12 to wrap around the cylindrical block 12. The rotation of the protective pile 2 drives the rotation of the cylindrical block 12, eliminating the need for an additional power source to drive the rotation of the cylindrical block 12, making it convenient to use.

[0049] like Figure 6 As shown, it also includes a reset assembly 19, which includes: a plurality of rotating rods 191 fixedly mounted on the concave plate 3; a pull rope 192 wound on the rotating rods 191, one end of the pull rope 192 being fixed to the rotating rods 191 and the other end of the pull rope 192 being connected to the square shell 146; a circular shell 193 mounted on the concave plate 3, with the rotating rods 191 located inside the circular shell 193; and a torsion spring 194 mounted between the circular shell 193 and the rotating rods 191.

[0050] Specifically, when the fixed component 14 is displaced, the pull rope 192 extends. Since the pull rope 192 is wrapped around the rotating rod 191, the rotating rod 191 rotates. At this time, the torsion spring 194 is twisted. After the load generated by the external impact is removed, the rotating rod 191 rotates under the action of the elastic force of the torsion spring 194, and the pull rope 192 is re-wound onto the rotating rod 191. Under the tension of the pull rope 192, the fixed component 14 slides to the initial position, thereby achieving the purpose of automatically resetting the fixed component 14.

[0051] like Figure 9 As shown, the square tube 15 is telescopic, and a No. 3 spring 20 is installed inside the square tube 15.

[0052] Specifically, the initial elastic force of spring 20 is less than that of torsion spring 194. Because the rotation angles of the protective posts 2 at different locations differ upon impact, the parallel plate 17 uses inflexible steel between adjacent protective posts 2, while the parallel plate 17 uses bendable steel pipes between the I-beams 183 on both sides of the protective posts 2. If the guardrail experiences multiple collisions simultaneously, the multiple steel cables 13 on the guardrail will twist, causing the cylindrical blocks 12, steel cables 13, and fixing components 14 on the protective posts 2 at both ends of the guardrail to slide to the middle, resulting in the loss of steel cables 13 at both ends of the guardrail. If an impact occurs at this location, the protection of the road at that location will be compromised. When the force decreases and the cylindrical block 12 begins to rotate initially, the two adjacent sets of cylindrical blocks 12, steel cables 13, and fixing components 14 do not approach each other. At this time, the square tube 15 extends to the left and right sides. After the cylindrical block 12 continues to rotate, that is, when the square tube 15 can no longer extend, the two adjacent sets of cylindrical blocks 12, steel cables 13, and fixing components 14 approach each other. At this time, the pull rope 192 is pulled out, and the torsion spring 194 is twisted. By setting the retractable square tube 15, the cylindrical blocks 12, steel cables 13, and fixing components 14 in the range far from the impact point do not displace, ensuring that the protective piles 2 at both ends contain steel cables 13, and ensuring the protective function of the protective piles 2 at both ends for the road.

[0053] Example 2

[0054] like Figure 1 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: two sets of telescopic block groups, a round rod 22, a concave plate 3, a parallel plate 17, a ring 11, a cylindrical block 12, a short rod 16, a fixing component 14, a steel cable 13, a square tube 15 and a reset component 19 are symmetrically installed on the protective pile 2.

[0055] Specifically, by setting two sets of telescopic blocks, parallel plates 17, round rods 22, concave plates 3, circular rings 11, cylindrical blocks 12, short rods 16, fixing components 14, steel cables 13, square tubes 15 and reset components 19 on the protective piles 2, the anti-collision effect of the guardrail is further guaranteed.

[0056] Work steps:

[0057] Step 1: During installation, place the two ends of the two steel cables 13 fixedly mounted on the cylindrical block 12 between the clamps 143 of the four sets of fixing components 14. Figure 5In the middle, the two clamping plates 143 slide left and right in a relatively close direction until the clamping plates 143 clamp the steel cable 13. After the clamping plates 143 clamp the steel cable 13, rotate the small disc 142 and the clamping plates 143 around the axis of the small disc 142, and wind the steel cable 13 around the clamping plates 143 several times. After winding, slide the insertion rod 148 and insert the insertion rod 148 into the insertion hole 147 of the small disc 142, so that the small disc 142 can no longer rotate. Then, put the square shell 146 on the outside of the clamping plate 143, and install the insertion block 141 of the fixing component 14 between the two concave plates 3. The two steel cables 13 and the fixing component 14 after installation are as follows. Figure 3-4 As shown;

[0058] Step 2: After the protective pile 2 is impacted, the protective pile 2 rotates relative to the base 1. The rotation of the protective pile 2 causes the sliding plate 4 to move back and forth relative to the base 1. After the sliding plate 4 is displaced, it will contact the square sleeve 7 and generate a forward or backward thrust on the square sleeve 7. That is, the load after the protective pile 2 is impacted is converted into the horizontal thrust of the sliding plate 4 on several square sleeves 7.

[0059] Step 3: When the sliding plate 4 slides horizontally back and forth, since the square tube 15 and bolt 6 remain stationary, the first spring 8 in the sliding hole 5 deforms. During the deformation process, the kinetic energy of the sliding plate 4 is converted into the elastic potential energy of the first spring 8, which consumes the impact energy of the protective pile 2. When the external load is removed, the elastic force of all the first springs 8 continues to reach the original equilibrium state, thereby achieving the purpose of automatic reset.

[0060] Step 4: After the steel cable 13 is impacted, the protective pile 2 rotates, causing one end of the rotating plate 182 to shift. Since the other end of the rotating plate 182 is rotatably connected to the support plate 181 and does not shift, the rotating plate 182 rotates around the connection point with the support plate 181. Because the rotation radius of the protective pile 2 is greater than the rotation radius of the rotating plate 182, the rotating plate 182 and one end of the protective pile 2 move downward relative to the protective pile 2, causing the I-beam 183 to move downward, which in turn causes the parallel plate 17 to move downward. This causes the short rod 16 on the parallel plate 17 to rotate downward around the center of the ring 11. The rotation of the short rod 16 causes the cylindrical block 12 to rotate. 2. Rotation causes the steel cable 13 on the cylindrical block 12 to partially wrap around the cylindrical block 12. Therefore, the length of the steel cable 13 from the cylindrical block 12 to the fixing component 14 is reduced. The fixing component 14 slides horizontally relative to the concave plate 3. Since the fixing components 14 are connected by the square tube 15, the change of a group of steel cables 13 and four fixing components 14 will drive the surrounding steel cables 13 and the four fixing components 14 to move closer to that point. When impacted, the steel cables 13 converge with each other around the impact point, increasing the number of steel cables 13 impacted during the impact, dispersing the impact load on a single steel cable 13, and reducing the possibility of the steel cable 13 breaking upon impact.

[0061] Step 5: When the cylindrical block 12 begins to rotate initially, the adjacent sets of cylindrical blocks 12, steel cables 13, and fixing components 14 do not approach each other. At this time, the square tube 15 extends to the left and right sides. After the cylindrical block 12 continues to rotate, that is, when the square tube 15 can no longer extend, the adjacent sets of cylindrical blocks 12, steel cables 13, and fixing components 14 approach each other. At this time, the pull rope 192 is pulled out. Since the pull rope 192 is wrapped around the rotating rod 191, the rotating rod 191 rotates. At this time, the torsion spring 194 is twisted. After the load generated by the external impact is removed, the rotating rod 191 rotates under the action of the elastic force of the torsion spring 194, and the pull rope 192 is re-wound onto the rotating rod 191. Under the tension of the pull rope 192, the fixing component 14 slides to the initial position, thereby achieving the purpose of automatically resetting the fixing component 14.

[0062] The foregoing has shown and described 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-resetting prefabricated crash barrier, comprising a plurality of bases (1), wherein the bases (1) are fixedly installed on the ground, characterized in that, Also includes: Rotate the protective pile (2) installed on the base (1); Two sets of telescopic blocks are installed on the protective pile (2). Each telescopic block set includes two telescopic blocks (21) that are symmetrically arranged vertically. Rotate the round rod (22) mounted on the telescopic block (21); A concave plate (3) is fixedly installed on the round rod (22), and the concave plate (3) is used to connect the protective pile (2); A sliding plate (4) is mounted on the base (1), and the sliding plate (4) is engaged with the protective pile (2); Several sliding holes (5) are formed on the sliding plate (4); A plurality of bolts (6) are threaded onto the base (1), the bolts (6) passing through the sliding hole (5); A square sleeve (7) is installed on the outside of the bolt (6), the square sleeve (7) is used to protect the bolt (6); Also includes: A connecting plate (10) is fixedly installed between each of the protective piles (2); Several rings (11) are slidably mounted on the connecting plate (10); A cylindrical block (12) mounted on the ring (11); Two steel cables (13) are fixedly installed inside the cylindrical block (12) in a cross pattern. A plurality of fixing components (14) are installed between two vertically symmetrical concave plates (3), the fixing components (14) comprising: An insert (141) is installed between two symmetrically positioned concave plates (3), and the insert (141) is telescopic. A small disc (142) is mounted on the insert (141); A clamp (143) is slidably mounted on the small disc (142), the clamp (143) being used to clamp the end of the steel cable (13); A rack plate (144) is slidably installed inside the small disc (142), and the rack plate (144) is engaged with the clamping plate (143); A second spring (145) is installed between the rack plate (144) and the small disc (142). A square shell (146) is detachably mounted on the insert (141). Also includes: A short rod (16) is fixedly installed on the cylindrical block (12); A parallel plate (17) drives the short rod (16) to rotate around the axis of the cylindrical block (12). The parallel plate (17) is slidably connected to the short rod (16) and slidably connected to the protective pile (2) up and down. A drive assembly (18) for driving the parallel plate (17) to move up and down, the drive assembly (18) comprising: A support plate (181) is fixedly installed on the base (1); Rotate the rotating plate (182) installed on the support plate (181), and the other end of the rotating plate (182) is slidably connected to the side wall of the protective pile (2); Rotate the I-beam (183) mounted on the rotating plate (182), and insert the parallel plate (17) into the I-beam (183); It also includes a reset component (19), which includes: Several rotating rods (191) are fixedly installed on the concave plate (3). A pull rope (192) is wound around the rotating rod (191), one end of which is fixed to the rotating rod (191), and the other end of which is connected to the square shell (146); A circular shell (193) is mounted on the concave plate (3), and the rotating rod (191) is located inside the circular shell (193); A torsion spring (194) is installed between the circular shell (193) and the rotating rod (191).

2. The self-resetting assembled crash barrier according to claim 1, characterized in that: It also includes several first springs (8) installed on the sliding hole (5), one end of the first spring (8) is fixedly connected to the sliding hole (5), and the other end of the first spring (8) is fixedly connected to the square sleeve (7).

3. The self-resetting assembled crash barrier according to claim 2, characterized in that: The cylindrical block (12) is rotatably connected to the ring (11), the insert block (141) is slidably connected to the concave plate (3), and square tubes (15) are detachably installed on the square shells (146) of two adjacent fixing components (14), and each fixing component (14) is connected to the other through the square tubes (15).

4. The self-resetting assembled crash barrier according to claim 3, characterized in that: The fixing component (14) also includes: Several insertion holes (147) are provided on the small disc (142); A rod (148) is slidably mounted on the insert block (141), the small disc (142) is rotatably connected to the insert block (141), and the rod (148) is used to fix the small disc (142).

5. A self-resetting assembled crash barrier according to claim 4, characterized in that: The square tube (15) is telescopic, and a No. 3 spring (20) is installed inside the square tube (15).

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