An assembled anchor-free movable guardrail

Abstract

The present invention discloses an assembled anchor-free movable guardrail, which belongs to the technical field of movable guardrails and includes multiple sections of anchor-free movable guardrails; each section of the anchor-free movable guardrail includes a guardrail base and a crossbeam, the guardrail base is placed horizontally on the ground, the crossbeam is placed horizontally above the guardrail base, and the two ends of the crossbeam are oriented correspondingly to the two ends of the guardrail base, the guardrail base and the crossbeam are connected by multiple pillars, and the adjacent ends of the guardrail base and the adjacent ends of the crossbeam in each of two adjacent sections of the anchor-free movable guardrail are connected by a support member, so that the two adjacent sections of the anchor-free movable guardrail are fixedly connected to form an integrated structure. After the guardrail in the prior art is placed on the ground of the use area, the guardrail base needs to be fixed to the ground by a ground anchor connection method, while the guardrail base in the present application only needs to be placed on the ground when in use. After the multiple guardrail bases and the crossbeams are connected to each other to form an integrated structure, the multiple sections of the anchor-free movable guardrail can be spliced ​​and combined into a whole to provide protection for vehicles during driving.

Description

Technical Field

[0001] The present invention relates to the technical field of movable guardrails, and in particular to an assembled anchor-free movable guardrail. Background Art

[0002] At present, anti-collision guardrails are installed on highways or traffic roads to protect out-of-control vehicles and unexpected traffic vehicles, which can effectively control the expansion of traffic accidents. Highway guardrails can absorb energy when vehicles collide with them, and are not easily destroyed. At the same time, they can provide good protection for vehicles and drivers and passengers.

[0003] However, most guardrails in the prior art are of an anchored connection structure, that is, the bottom of the guardrail is fixed to the ground through a ground anchor connection. This type of guardrail is not only cumbersome to assemble, but also, when used subsequently, if it is hit by a vehicle, the movement of the guardrail will cause the ground anchor connection to deform and damage the inner layer of the ground. When the guardrail is subsequently reassembled, the ground also needs to be repaired. Summary of the Invention

[0004] An embodiment of the present invention provides an assembled anchor-free movable guardrail to solve the above-mentioned technical problems.

[0005] The embodiment of the present invention adopts the following technical solution: comprising multiple sections of anchor-free movable guardrail; each section of the anchor-free movable guardrail comprises a guardrail base and a crossbeam, wherein the guardrail base is placed horizontally on the ground, and the crossbeam is placed horizontally above the guardrail base, with the two ends of the crossbeam facing in the same direction as the two ends of the guardrail base;

[0006] The guardrail base and the crossbeam are connected by multiple pillars, and the adjacent ends of the guardrail base and the adjacent ends of the crossbeam in each two adjacent sections of anchor-free mobile guardrail are connected by support members, so that the two adjacent sections of anchor-free mobile guardrail are fixedly connected into an integrated structure.

[0007] Preferably, the cross-section of the guardrail base is an I-shaped structure.

[0008] Preferably, the bottom cross-section of the guardrail base is designed as a dovetail structure, and a plurality of through grooves are provided at the bottom of the guardrail base, so that the cross-section of the guardrail base is a dovetail structure area to form a plurality of support legs, and the bottom of the support legs is designed as a rough surface.

[0009] Preferably, the guardrail base is equipped with a steel bar structure for supporting the entire guardrail base, and the steel bar structure includes a top supporting bar group, a top clamping bar, a bottom supporting bar group and a bottom clamping bar;

[0010] The top support rib group consists of two main support ribs and two secondary support ribs. The two main support ribs are placed horizontally on the top of the guardrail base and near the middle area, and the two secondary support ribs are placed horizontally on both sides of the top of the guardrail base.

[0011] The top clamping ribs are provided in plurality, and the plurality of top clamping ribs are arranged equidistantly. The two ends of each top clamping rib are bent after being covered by the two main support ribs and the two secondary support ribs from top to bottom. The bent parts at the two ends of the top clamping rib extend downward and converge with each other, so that the top clamping rib forms an inverted triangle shape as a whole.

[0012] The bottom support rib group consists of two first support ribs, two second support ribs and two third support ribs. The two first support ribs are placed horizontally in the middle part of the guardrail base, and the two first support ribs are symmetrically arranged with the two main support ribs. The two second support ribs are placed horizontally below the two first support ribs. The two third support ribs are placed horizontally on the outside of the two second support ribs, that is, the two third support ribs are placed horizontally on both sides of the bottom of the guardrail base.

[0013] The number of the bottom clamping ribs is the same as the number of the multiple top clamping ribs and their positions correspond. The two ends of each bottom clamping rib are bent from bottom to top after being covered by two second support ribs and two third support ribs. The bent parts of the two ends of the bottom clamping rib extend upward and then covered by two first support ribs and gather together, so that the bottom clamping rib forms a triangular shape as a whole.

[0014] Preferably, it further comprises a plurality of groups of the traction reinforcement groups, which are equidistantly arranged in the guardrail base, and each group of the traction reinforcement groups comprises a main traction reinforcement and a secondary traction reinforcement, the main traction reinforcement being closely attached to the first support reinforcement and the second support reinforcement on the left side of the guardrail base and being fixedly connected to the corresponding first support reinforcement and the second support reinforcement, the secondary traction reinforcement being closely attached to the first support reinforcement and the second support reinforcement on the right side of the guardrail base and being fixedly connected to the corresponding first support reinforcement and the second support reinforcement, the top ends of the main traction reinforcement and the secondary traction reinforcement extending upward and intersecting with each other, respectively bending and extending in the left and right directions of the top of the guardrail base, and the top ends of the intersecting main traction reinforcement and the secondary traction reinforcement respectively overlapping the main support reinforcement in the opposite direction thereof;

[0015] Among them, the number of multiple traction reinforcement groups is the same as the number of multiple top clamping reinforcements, and the main traction reinforcement and auxiliary traction reinforcement in each traction reinforcement group are respectively located on the front and back sides of the corresponding top clamping reinforcement and bottom clamping piece.

[0016] Preferably, a plurality of reinforcing ribs are provided in each dovetail-shaped support leg of the bottom of the guardrail base; the plurality of reinforcing ribs are provided in four numbers and are equally divided into two groups, wherein the four reinforcing ribs in one group are horizontally placed below the second support rib and the third support rib on the left side of the guardrail base, that is, the four reinforcing ribs in the group are arranged correspondingly along the side track of the left area of ​​the bottom of the guardrail base;

[0017] The four reinforcing ribs in the other group are horizontally placed below the second supporting rib and the third supporting rib on the right side of the guardrail base. That is, the four reinforcing ribs in this group are arranged correspondingly along the side track of the right area of ​​the bottom of the guardrail base.

[0018] The bottom ends of the main traction bars and the secondary traction bars in each dovetail-shaped support leg at the bottom of the guardrail base are provided with extension ends. The extension ends of the bottom ends of the main traction bars are covered by the second support bars and four reinforcement bars in the left area of ​​the bottom of the guardrail base, and then overlapped with the third support bars in the same side area.

[0019] The extended end of the bottom end of the auxiliary traction reinforcement passes through the second support reinforcement in the right side area of ​​the bottom and the outside of four reinforcement reinforcements in the guardrail base, and then overlaps the third support reinforcement in the same side area.

[0020] Preferably, the length of the crossbeam is the same as that of the guardrail base, and the crossbeam is made of a beam plate with two sides bent so that the cross section of the crossbeam forms a C-shaped structure with a notch.

[0021] Preferably, the bending parts on both sides of the beam are concave. Taking the cross section of the beam as an example, the bending parts on both sides of the beam are inclined toward the middle area at the same time to form a first bending part. The first bending part extends vertically downward for a distance and then extends inclined toward both sides of the beam to form a second bending part.

[0022] Preferably, through holes are provided on the crossbeam in the vertically extending area between the first bending portion and the second bending portion on both sides and at positions corresponding to the pillars.

[0023] Preferably, the bottom end of each of the pillars passes through the two main support ribs along the top of the guardrail base and then extends downward to between the two first support ribs. The top end of each of the pillars extends from the bottom notch of the cross-section of the C-shaped structural beam. Both sides of the guardrail base are provided with bulge-shaped thickening layers at the position of each pillar.

[0024] The at least one technical solution adopted in the embodiment of the present invention can achieve the following beneficial effects:

[0025] First, after the guardrail in the prior art is placed on the ground in the use area, the guardrail base needs to be fixed to the ground through a ground anchor connection method. However, the guardrail base in the present application only needs to be placed on the ground when in use. After multiple guardrail bases and beams are connected to each other into an integrated structure, multiple sections of anchor-free mobile guardrails can be spliced ​​and combined into a whole to provide protection for vehicles during driving.

[0026] Secondly, the guardrail base of the anchor-free mobile guardrail in this application is designed as an anchor-free structure. When the guardrail base is hit by a vehicle, although the guardrail will be displaced due to the collision, it will not cause damage to the inner area of ​​the ground. Therefore, when reassembling the anchor-free mobile guardrail that has been hit by a vehicle, it is only necessary to replace the new anchor-free mobile guardrail and replace the original anchor-free mobile guardrail with the remaining multi-section anchor-free mobile guardrails to complete the repair of the entire anchor-free mobile guardrail structure.

[0027] Third, the steel structure inside the guardrail base, which is composed of the top supporting rib group, top clamping ribs, bottom supporting rib group and bottom clamping ribs, cooperates with each other to support the interior of the entire guardrail base. When the guardrail base is hit by a vehicle, the top supporting rib group, top clamping ribs, bottom supporting rib group and bottom clamping ribs can pull each other and perform a pulling effect, so that the guardrail base has a good impact absorption and buffering effect.

[0028] Fourthly, after the bending parts on both sides of the beam are recessed, the compressive strength of the bending parts on both sides of the beam can be improved, so that when the beam is hit by a vehicle, the first bending part and the second bending part area on both sides of the beam can absorb the impact force generated by the vehicle collision, thereby preventing the beam from suddenly breaking when hit. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0030] Figure 1 Schematic diagram of the three-dimensional structure of the present invention Figure 1 ;

[0031] Figure 2 Schematic diagram of the three-dimensional structure of the present invention Figure 2 ;

[0032] Figure 3 Schematic diagram of the three-dimensional structure of the present invention Figure 3 ;

[0033] Figure 4 is a side view of the present invention;

[0034] Figure 5 Schematic diagram of the internal steel bar structure of the present invention Figure 1 ;

[0035] Figure 6 Schematic diagram of the internal steel bar structure of the present invention Figure 2 ;

[0036] Figure 7 A side view of the internal steel reinforcement structure of the present invention;

[0037] Figure 8 Schematic diagram of the structure of the crossbeam in the present invention;

[0038] Figure 9 This is a structural side view of the crossbeam in the present invention;

[0039] Figure 10 It is a schematic diagram of the bottom structure of the present invention.

[0040] Reference numerals

[0041] Anchor-free mobile guardrail 1, guardrail base 11, crossbeam 12, first bending portion 121, second bending portion 122, through hole 123, through groove 13, support leg 14, pillar 2, thickening layer 21, steel structure 3, top support rib group 31, main support rib 311, secondary support rib 312, top clip rib 32, bottom support rib group 33, first support rib 331, second support rib 332, third support rib 333, bottom clip rib 34, traction rib group 35, main traction rib 351, secondary traction rib 352, extension end 353, reinforcement rib 36. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] The technical solutions provided by various embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0044] An embodiment of the present invention provides an assembled anchor-free mobile guardrail, comprising a plurality of sections of anchor-free mobile guardrails 1; each section of the anchor-free mobile guardrail 1 comprises a guardrail base 11 and a crossbeam 12, wherein the guardrail base 11 is placed horizontally on the ground, and the crossbeam 12 is placed horizontally above the guardrail base 11, and the two ends of the crossbeam 12 face in a direction corresponding to the two ends of the guardrail base 11, and the guardrail base 11 and the crossbeam 12 are connected by a plurality of pillars 2, and the adjacent ends of the guardrail base 11 and the adjacent ends of the crossbeam 12 in each of two adjacent sections of the anchor-free mobile guardrail 1 are connected by a support member, so that the two adjacent sections of the anchor-free mobile guardrail 1 are fixedly connected to form an integrated structure;

[0045] In the present application, during assembly, two adjacent sections of anchor-free movable guardrails 1 can be placed together, and then connected by supporting members, so that multiple sections of anchor-free movable guardrails 1 can be combined and used according to the use area, and the multiple sections of anchor-free movable guardrails 1 can be formed into an integrated structure;

[0046] The guardrail in the prior art needs to be fixed to the ground by means of a ground anchor connection after being placed on the ground in the use area. However, the guardrail base 11 in the present application only needs to be placed on the ground when in use. After multiple guardrail bases 11 and crossbeams 12 are connected to each other into an integrated structure, multiple sections of anchor-free mobile guardrail 1 can be spliced ​​and combined into a whole to provide protection for vehicles during driving.

[0047] At the same time, the anchor-free structural design enables each section of the anchor-free mobile guardrail 1 to be adaptively displaced and adjusted according to the use requirements during assembly. When one section of the anchor-free mobile guardrail 1 is hit by a vehicle, since multiple sections of the anchor-free mobile guardrail 1 are interconnected into an integrated structure, the two adjacent sections of the anchor-free mobile guardrail 1 at both ends of the anchor-free mobile guardrail 1 hit by the vehicle will work together to pull the section of the anchor-free mobile guardrail 1 and prevent the section of the anchor-free mobile guardrail 1 from causing a large-scale displacement. In this way, the out-of-control state of the accident vehicle can be blocked, and a larger range of positional displacement of the vehicle due to out-of-control can be avoided.

[0048] Secondly, after the guardrail in the prior art is connected to the ground through a ground anchor, if it is hit by a vehicle, the movement of the guardrail will cause the ground anchor connector to deform and damage the inner layer of the ground. When the guardrail is subsequently reassembled, the ground needs to be repaired to ensure that the guardrail can be fixed to the ground. The guardrail base 11 of the anchor-free mobile guardrail 1 in the present application is an anchor-free structure design. When the guardrail base 11 is hit by a vehicle, although the guardrail will be displaced due to the collision, it will not cause damage to the inner layer of the ground. Therefore, when reassembling the anchor-free mobile guardrail 1 that has been hit by a vehicle, it is only necessary to replace the new anchor-free mobile guardrail 1 and replace the original anchor-free mobile guardrail 1 with the remaining multi-section anchor-free mobile guardrails 1 to complete the repair of the entire anchor-free mobile guardrail 1 structure, which has the effect of convenient operation during assembly and subsequent maintenance and repair work.

[0049] Further, see the attached Figure 3 and 4 As shown, the guardrail base 11 has a length of 6m, a height of 600mm, and a width of 500mm; and the cross section of the guardrail base 11 is an I-shaped structure.

[0050] Further, see the attached Figure 3 and 4 As shown, the bottom cross-section of the guardrail base 11 is designed as a dovetail structure, and a plurality of through slots 13 are provided at the bottom of the guardrail base 11, so that the dovetail structure area of ​​the guardrail base 11 cross-section forms a plurality of support legs 14, and the bottom of the support legs 14 is designed as a rough surface;

[0051] The cross section of the guardrail base 11 is set to an I-shaped structure, which can reduce the overall weight of the guardrail base 11 and make the guardrail base 11 more convenient during transportation and assembly;

[0052] The support legs 14, which have a dovetail-shaped cross-section at the bottom of the guardrail base 11, can provide support between the bottom of the entire guardrail base 11 and the ground. At the same time, the rough surface at the bottom of the dovetail-shaped support legs 14 can increase the friction when in contact with the ground, allowing the guardrail base 11 to be better placed on the ground.

[0053] Secondly, the guardrail base 11 in the prior art is a flat surface. When it contacts the ground, the bottom of the entire guardrail base 11 contacts the ground. Large-scale grabbing machinery must be used for grabbing during transportation and assembly. The bottom of the guardrail base 11 of the present application is provided with multiple through grooves 13. When transporting and assembling the guardrail base 11, the through groove 13 area of ​​the guardrail base 11 can be used for the portable hydraulic trolley used during assembly to extend into, which is simpler in transportation and assembly, and the guardrail base 11 can be adjusted to any position according to usage requirements.

[0054] Further, see the attached Figure 5 and 6 As shown, the guardrail base 11 is internally assembled with a steel bar structure 3 that supports the entire guardrail base 11. The steel bar structure 3 includes a top support bar group 31, a top clamping bar 32, a bottom support bar group 33, and a bottom clamping bar 34.

[0055] The top support rib group 31 is composed of two main support ribs 311 and two secondary support ribs 312. The two main support ribs 311 are placed horizontally on the top of the guardrail base 11 and near the middle area, and the two secondary support ribs 312 are placed horizontally on both sides of the top of the guardrail base 11.

[0056] There are multiple top clamping ribs 32, which are arranged equidistantly. The two ends of each top clamping rib 32 are bent after being covered by the two main support ribs 311 and the two secondary support ribs 312 from top to bottom. The bent parts of the two ends of the top clamping rib 32 extend downward and converge with each other, so that the top clamping rib 32 forms an inverted triangle shape as a whole.

[0057] The bottom support rib group 33 is composed of two first support ribs 331, two second support ribs 332 and two third support ribs 333. The two first support ribs 331 are horizontally placed in the middle part of the guardrail base 11, and the two first support ribs 331 are symmetrically arranged with the two main support ribs 311. The two second support ribs 332 are horizontally placed below the two first support ribs 331. The two third support ribs 333 are respectively horizontally placed on the outside of the two second support ribs 332, that is, the two third support ribs 333 are horizontally placed on both sides of the bottom of the guardrail base 11.

[0058] The number of the bottom clamping ribs 34 is the same as the number of the top clamping ribs 32 and their positions correspond to each other. The two ends of each bottom clamping rib 34 are covered by the two second support ribs 332 and the two third support ribs 333 from bottom to top, and then bent. The bent parts of the two ends of the bottom clamping rib 34 extend upward and are then covered by the two first support ribs 331 and converge to form a triangular shape as a whole.

[0059] The guardrail base 11 is internally welded with a steel structure 3 consisting of a top support rib group 31, a top clamping rib 32, a bottom support rib group 33 and a bottom clamping rib 34;

[0060] The top support rib group 31, which is composed of two main support ribs 311 and two secondary support ribs 312, can provide support for the inner area of ​​the upper half of the guardrail base 11. After the multiple top clamping ribs 32 are covered on the outside of the top support rib group 31 and welded together, the multiple top clamping ribs 32 will form a clamping state with the outside of the top support rib group 31 and protect the top support rib group 31 to prevent the top support rib group 31 from scattering after a collision.

[0061] The top support rib group 31 also supports the top clamping rib 32 inside the top clamping rib 32, and cooperates with the top clamping rib 32 to support the upper half of the guardrail base 11. When the upper half of the movable guardrail is hit by a collision, the internal steel structure 3 can cooperate with the guardrail base 11 to absorb a certain impact force, thereby forming a buffering effect.

[0062] The bottom support rib group 33 composed of two first support ribs 331, two second support ribs 332 and two third support ribs 333 can form support for the internal area of ​​the lower half of the guardrail base 11. After multiple bottom clip ribs 34 are covered on the outside of the bottom support rib group and welded together, the multiple bottom clip ribs 34 will form a clipping state on the outside of the bottom support rib group 33 and form a protective effect on the bottom support rib group 33, so as to prevent the bottom support rib group 33 in the guardrail base 11 from being scattered after a collision; the bottom support rib group 33 will cooperate with the bottom clip rib 34 inside the bottom clip rib 34 to support the lower half of the guardrail base 11 and provide a buffering effect when it is hit.

[0063] Further, see the attached Figure 6 As shown, it also includes multiple groups of traction reinforcement groups 35, which are equidistantly arranged in the guardrail base 11, and each group of traction reinforcement groups 35 includes a main traction reinforcement 351 and a secondary traction reinforcement 352. The main traction reinforcement 351 is tightly attached to the first support reinforcement 331 and the second support reinforcement 332 on the left side of the guardrail base 11 and is fixedly connected to the corresponding first support reinforcement 331 and the second support reinforcement 332. The secondary traction reinforcement 352 is tightly attached to the first support reinforcement 331 and the second support reinforcement 332 on the right side of the guardrail base 11 and is fixedly connected to the corresponding first support reinforcement 331 and the second support reinforcement 332. The top ends of the main traction reinforcement 351 and the secondary traction reinforcement 352 extend upward and intersect with each other, and then bend and extend toward the left and right sides of the top of the guardrail base 11 respectively. The top ends of the main traction reinforcement 351 and the secondary traction reinforcement 352 after interlacing are respectively overlapped on the main support reinforcement 311 in the opposite direction of themselves.

[0064] The number of the plurality of traction reinforcement groups 35 is the same as the number of the plurality of top clamping reinforcements 32. The main traction reinforcement 351 and the auxiliary traction reinforcement 352 in each traction reinforcement group 35 are respectively located at the front and rear sides of the corresponding top clamping reinforcement 32 and the bottom clamping piece.

[0065] The main traction bars 351 and the auxiliary traction bars 352 in the multiple groups of traction bars 35 are staggered to form a connection between the top support bars, the bottom clamping bars 34, the multiple groups of top clamping bars 32, and the multiple groups of bottom clamping bars 34, and provide support for the middle section of the guardrail base 11. When the guardrail base 11 is hit, the middle section of the guardrail base 11 can pull the upper and lower sections together, thereby preventing the guardrail base 11 from breaking after the hit.

[0066] Secondly, the main traction reinforcement 351 and the auxiliary traction reinforcement 352 in each group of traction reinforcement groups 35 are respectively tightly attached to the front and rear sides of the corresponding top clip reinforcement 32 and the bottom clip reinforcement 34. The main traction reinforcement 351 and the auxiliary traction reinforcement 352 will form a clamping effect from the front and rear sides of the corresponding top clip reinforcement 32 and the bottom clip reinforcement 34, and restrict the position of the top clip reinforcement 32 and the bottom clip reinforcement 34 inside the guardrail base 11, so that when the guardrail base 11 is hit, its internal steel structure 3 can still maintain a relatively complete shape, so as to better provide the entire guardrail base 11 with impact force when it is hit.

[0067] Further, see the attached Figure 6 and 7 As shown, a plurality of reinforcing ribs 36 are provided in each dovetail-shaped support leg 14 at the bottom of the guardrail base 11;

[0068] The plurality of reinforcing ribs 36 are provided in four numbers and are equally divided into two groups. The four reinforcing ribs 36 in one group of reinforcing ribs 36 are horizontally placed below the second support rib 332 and the third support rib 333 on the left side of the guardrail base 11. That is, the four reinforcing ribs 36 in this group of reinforcing ribs 36 are arranged correspondingly along the side track of the left side area of ​​the bottom of the guardrail base 11.

[0069] The four reinforcing ribs 36 in the other group of reinforcing ribs 36 are horizontally placed below the second supporting rib 332 and the third supporting rib 333 on the right side of the guardrail base 11. That is, the four reinforcing ribs 36 in this group of reinforcing ribs 36 are arranged along the side track of the right side area of ​​the bottom of the guardrail base 11.

[0070] The bottom ends of the main traction reinforcement 351 and the secondary traction reinforcement 352 in each dovetail-shaped support leg 14 at the bottom of the guardrail base 11 are provided with an extension end 353. The extension end 353 at the bottom end of the main traction reinforcement 351 is covered by the second support reinforcement 332 and the four reinforcing reinforcements 36 in the left bottom area of ​​the guardrail base 11, and then overlaps the third support reinforcement 333 in the same side area.

[0071] The extended end 353 of the bottom end of the auxiliary traction reinforcement 352 is covered by the second support reinforcement 332 and the four reinforcement ribs 36 in the right area of ​​the bottom of the guardrail base 11, and then overlaps the third support reinforcement 333 in the same side area.

[0072] The plurality of reinforcing ribs 36, the second supporting ribs 332, the third supporting ribs 333, the main traction ribs 351 and the extension ends 353 at the bottom ends of the auxiliary traction ribs 352 are welded together into one body;

[0073] The frame structure formed by the multiple reinforcing ribs 36, the main traction ribs 351 and the extended ends 353 at the bottom ends of the auxiliary traction ribs 352 can support the inside of the dovetail-shaped support legs 14 at the bottom of the guardrail base 11, so that the multiple support legs 14 can play a good supporting and stabilizing role at the bottom of the guardrail base 11. At the same time, when the guardrail base 11 is hit by a vehicle, the support legs 14 at its bottom can absorb a certain impact force and prevent the bottom support legs 14 of the guardrail base 11 from being seriously damaged when the guardrail base 11 is hit.

[0074] Further, see the attached Figure 8 and 9 As shown, the length of the crossbeam 12 is the same as that of the guardrail base 11. The crossbeam 12 is made of a beam plate with two sides bent so that the cross section of the crossbeam 12 forms a C-shaped structure with a notch.

[0075] The cross beam 12 with a C-shaped cross section can have a hollow structure inside, thereby reducing the overall weight and facilitating installation and connection with the pillar 2 and the guardrail base 11.

[0076] Further, see the attached Figure 9 As shown, the bent portions on both sides of the beam 12 are both concave. Taking the cross section of the beam 12 as an example, the bent portions on both sides of the beam 12 are inclined toward the middle area to form a first bent portion 121. The first bent portion 121 extends vertically downward for a distance and then extends obliquely toward both sides of the beam 12 to form a second bent portion 122.

[0077] Compared with the flat surface design on both sides of the guardrail beam 12 in the prior art, the bent parts on both sides of the beam 12 can improve the compressive strength of the bent parts on both sides of the beam 12 after being recessed, so that when the beam 12 is hit by a vehicle, the first bent part 121 and the second bent part 122 on both sides can absorb the impact force generated by the vehicle collision. When the bent part on one side of the beam 12 is hit, the first bent part 121 and the second bent part 122 on the bent part of that side can play a buffering role and prevent the beam 12 from sinking inward, while the first bent part 121 and the second bent part 122 on the other side of the beam 12 can pull the side of the entire beam 12 to prevent the beam 12 from suddenly breaking when hit.

[0078] Furthermore, a through hole 123 is provided on the crossbeam 12 in the vertical extension area between the first bending portion 121 and the second bending portion 122 on both sides and corresponding to the pillar 2. By using bolts, screws and other connecting parts to penetrate through the through holes 123 on both sides of the crossbeam 12 and then insert them into the interior of the pillar 2, the entire crossbeam 12 is fixed on multiple pillars 2.

[0079] Furthermore, the bottom end of each of the pillars 2 passes through the two main support ribs 311 along the top of the guardrail base 11 and then extends downward to between the two first support ribs 331. The top end of each of the pillars 2 extends into the bottom notch of the crossbeam 12 with a C-shaped cross section. A bulge-shaped thickening layer 21 is provided on both sides of the guardrail base 11 at the location of each pillar 2.

[0080] By setting a bulge-shaped thickened layer 21 on the parts corresponding to the pillars 2 on both sides of the guardrail base 11, the pillars 2 inside the guardrail base 11 can be protected. When the guardrail base 11 is hit by a vehicle, the bulge-shaped thickened layer 21 can increase the anti-collision effect of the pillars 2 of the guardrail base 11, so that when this part is hit by a vehicle, the thickened layer 21 can absorb the impact force and play a buffering role, thereby preventing the pillars 2 inside the guardrail base 11 from being damaged and causing the upper crossbeam 12 to detach.

[0081] The foregoing is merely an embodiment of the present invention and is not intended to limit the present invention. It will be apparent to those skilled in the art that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. An assembled anchor-free movable guardrail, characterized in that: It comprises a multi-section anchor-free movable guardrail (1); Each section of the anchor-free mobile guardrail (1) comprises a guardrail base (11) and a crossbeam (12), wherein the guardrail base (11) is placed horizontally on the ground, and the crossbeam (12) is placed horizontally above the guardrail base (11), and the two ends of the crossbeam (12) are oriented in a corresponding direction to the two ends of the guardrail base (11); The guardrail base (11) and the crossbeam (12) are connected via a plurality of pillars (2), and adjacent ends of the guardrail base (11) and adjacent ends of the crossbeam (12) in each of two adjacent sections of anchor-free mobile guardrails (1) are connected via a support member, so that the two adjacent sections of anchor-free mobile guardrails (1) are fixedly connected to form an integrated structure; The guardrail base (11) is internally equipped with a steel bar structure (3) for supporting the entire guardrail base (11), the steel bar structure (3) comprising a top supporting bar group (31), a top snap-fitting bar (32), a bottom supporting bar group (33) and a bottom snap-fitting bar (34); The top support rib group (31) is composed of two main support ribs (311) and two secondary support ribs (312), the two main support ribs (311) are horizontally placed on the top of the guardrail base (11) and near the middle area, and the two secondary support ribs (312) are horizontally placed on both sides of the top of the guardrail base (11); The top clamping ribs (32) are provided in plurality, and the plurality of top clamping ribs (32) are arranged at equal intervals. The two ends of each top clamping rib (32) are bent after being covered externally by two main support ribs (311) and two secondary support ribs (312) from top to bottom. The bent portions at the two ends of the top clamping rib (32) extend downward and converge to each other, so that the top clamping rib (32) forms an inverted triangle shape as a whole. The bottom support rib group (33) is composed of two first support ribs (331), two second support ribs (332) and two third support ribs (333), the two first support ribs (331) are horizontally placed in the middle part of the guardrail base (11), and the two first support ribs (331) and the two main support ribs (311) are symmetrically arranged, the two second support ribs (332) are horizontally placed below the two first support ribs (331), and the two third support ribs (333) are horizontally placed on the outside of the two second support ribs (332), that is, the two third support ribs (333) are horizontally placed on both sides of the bottom of the guardrail base (11); The number of the bottom clamping ribs (34) is the same as the number of the top clamping ribs (32) and the positions thereof correspond to each other. The two ends of each bottom clamping rib (34) are covered from bottom to top by two second support ribs (332) and two third support ribs (333) and then bent. The bent portions of the two ends of the bottom clamping rib (34) extend upward and then covered by two first support ribs (331) and then gather together, so that the bottom clamping rib (34) forms a triangular shape as a whole. The invention also includes a plurality of traction reinforcement groups (35), which are equidistantly arranged in the guardrail base (11), and each traction reinforcement group (35) includes a main traction reinforcement (351) and an auxiliary traction reinforcement (352). The top ends of the main traction reinforcement (351) and the auxiliary traction reinforcement (352) extend upward and intersect with each other, and then bend and extend toward the left and right sides of the top of the guardrail base (11). The top ends of the main traction reinforcement (351) and the auxiliary traction reinforcement (352) after intersecting are respectively overlapped on the main support reinforcement (311) in the opposite direction of themselves.

2. The assembled anchor-free movable guardrail according to claim 1, characterized in that: The cross section of the guardrail base (11) is an I-shaped structure.

3. The assembled anchor-free movable guardrail according to claim 1, characterized in that: The bottom cross section of the guardrail base (11) is designed as a dovetail structure, and a plurality of through slots (13) are provided at the bottom of the guardrail base (11), so that the dovetail structure area of ​​the guardrail base (11) cross section forms a plurality of support legs (14), and the bottom of the support legs (14) is designed as a rough surface.

4. The assembled anchor-free movable guardrail according to claim 1, characterized in that: The main traction rib (351) is closely attached to the first support rib (331) and the second support rib (332) on the left side of the guardrail base (11) and is fixedly connected to the corresponding first support rib (331) and the second support rib (332); the auxiliary traction rib (352) is closely attached to the first support rib (331) and the second support rib (332) on the right side of the guardrail base (11) and is fixedly connected to the corresponding first support rib (331) and the second support rib (332); The number of the plurality of traction rib groups (35) is the same as the number of the plurality of top clamping ribs (32), and the main traction ribs (351) and the auxiliary traction ribs (352) in each traction rib group (35) are respectively located at the front and rear sides of the corresponding top clamping rib (32) and the bottom clamping piece.

5. The assembled anchor-free movable guardrail according to claim 3, characterized in that: A plurality of reinforcing ribs (36) are provided in each dovetail-shaped support leg (14) at the bottom of the guardrail base (11); The plurality of reinforcing ribs (36) are provided in four pieces and are equally divided into two groups, wherein the four reinforcing ribs (36) in one group of reinforcing ribs (36) are horizontally placed below the second supporting rib (332) and the third supporting rib (333) on the left side of the guardrail base (11); Four reinforcing ribs (36) in another group of reinforcing ribs (36) are horizontally placed below the second supporting rib (332) and the third supporting rib (333) on the right side of the guardrail base (11); The bottom ends of the main traction reinforcement (351) and the auxiliary traction reinforcement (352) in each dovetail-shaped support leg (14) at the bottom of the guardrail base (11) are both provided with an extension end (353). The extension end (353) at the bottom end of the main traction reinforcement (351) is covered by the second support reinforcement (332) and the four reinforcement reinforcements (36) in the left bottom area of ​​the guardrail base (11) and then overlapped with the third support reinforcement (333) in the same side area. The extended end (353) of the bottom end of the auxiliary traction reinforcement (352) is covered by the second support reinforcement (332) in the right area of ​​the bottom and the four reinforcement reinforcements (36) in the guardrail base (11), and then overlapped with the third support reinforcement (333) in the same side area.

6. The assembled anchor-free movable guardrail according to claim 1, characterized in that: The length of the crossbeam (12) is the same as that of the guardrail base (11). The crossbeam (12) is made of a beam plate with two sides bent, so that the cross section of the crossbeam (12) forms a C-shaped structure with a notch.

7. The assembled anchor-free movable guardrail according to claim 1, characterized in that: The bending parts on both sides of the beam (12) are both concave. Taking the cross section of the beam (12) as an example, the bending parts on both sides of the beam (12) are simultaneously inclined toward the middle area to form a first bending part (121). The first bending part (121) extends vertically downward for a distance and then extends obliquely toward both sides of the beam (12) to form a second bending part (122).

8. The assembled anchor-free movable guardrail according to claim 7, characterized in that: A through hole (123) is provided on the crossbeam (12) in a vertical extension area between the first bending portion (121) and the second bending portion (122) on both sides and at a position corresponding to the pillar (2).

9. The assembled anchor-free movable guardrail according to claim 1, characterized in that: The bottom end of each of the pillars (2) passes through the top of the guardrail base (11) between the two main support ribs (311) and then extends downward to between the two first support ribs (331). The top end of each of the pillars (2) extends from the bottom notch of the cross beam (12) with a C-shaped cross section. A bulge-shaped thickening layer (21) is provided on both sides of the guardrail base (11) at the position of each pillar (2).

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