A modular infill guardrail

Abstract

This utility model relates to the field of guardrail technology and discloses a modular infill guardrail, comprising: several interconnected guardrail units, each guardrail unit including multiple protective modules connected in sequence; each protective module includes two side plates arranged opposite each other on the left and right, and a bottom plate arranged at the bottom, the two side plates being connected to the two sides of the bottom plate to form a cavity for accommodating filler, and several main supports being spaced apart inside the protective module; it also includes a connecting plate, with adjacent protective modules connected by the connecting plate, wherein the side plates on both sides of the adjacent two protective modules are respectively abutted, and the two ends of the connecting plate are detachably connected to the side plates of the adjacent two protective modules; this integrates the connecting structure with the core load-bearing components, ensuring that in the event of a collision, the impact load can be effectively transferred and dispersed to the entire adjacent protective module through the connecting plate, avoiding excessive stress concentration at local connection points, and fundamentally solving the problem of easy breakage of traditional independent connecting parts.

Description

Technical Field

[0001] This utility model relates to the field of guardrail technology, and more specifically, to a modular infill guardrail. Background Technology

[0002] Currently, with the continuous development of road traffic engineering, the requirements for safety protection facilities are increasing. Especially in road sections requiring temporary construction, temporary isolation, or rapid deployment, traditional guardrails that require on-site anchoring have problems such as long construction periods, damage to the road surface, and difficulty in relocation and reuse.

[0003] To address the aforementioned issues, existing technologies have introduced anchor-free guardrail designs. For example, Chinese patent CN219196928U discloses an anchor-free guardrail structure that utilizes a steel panel structure with an internal cavity. The overall weight of the guardrail is increased by filling the cavity with counterweights such as sand and water, achieving stability through friction, thus eliminating the need for complex anchoring. While this design solves the anchor-free problem, it still has significant drawbacks: the steel panel connects adjacent panels by setting a first and a second connecting part on the inner side of each side panel, using a pin-type connection. This connection method has the following problems: the first and second connecting parts, as independent connecting components, lack sufficient integration with the main load-bearing components of the panel (such as the side panels). This results in the force being concentrated at the first and second connecting parts during a collision, making the connection prone to breakage. The load cannot be effectively transferred and distributed to adjacent panels through the connecting structure; the impact resistance of the connecting parts is weak, making it difficult to guarantee the overall protective performance and structural reliability of the modular guardrail. Utility Model Content

[0004] This utility model aims to overcome at least one of the defects of the prior art and provides a modular infill guardrail to solve the technical problems of insufficient integration between the connection structure and the screen body of the existing non-reinforced guardrail, which leads to the force being concentrated at the connection part when a collision occurs, the connection is prone to breakage, the load cannot be effectively transferred and dispersed to the adjacent screen body through the connection structure, and the connection part has weak impact resistance, making it difficult to ensure the overall protective performance and structural reliability of the modular guardrail.

[0005] The technical solution adopted by this utility model is a modular infill guardrail, comprising: a plurality of interconnected guardrail units, each guardrail unit comprising a plurality of sequentially connected protective modules; each protective module comprising two side plates arranged opposite to each other on the left and right, and a bottom plate disposed at the bottom, the two side plates being connected to the two sides of the bottom plate to form a cavity for accommodating filler, and a plurality of main supports being spaced apart inside the protective module; it also includes a connecting plate, adjacent two protective modules being connected by the connecting plate, wherein the side plates on both sides of the adjacent two protective modules are respectively abutted, and the two ends of the connecting plate are respectively detachably connected to the side plates of the adjacent two protective modules, and the outline of the connecting plate is adapted to the side outline of the side plate.

[0006] By incorporating a connecting plate that conforms to the side profile of the side panel, a detachable connection is made directly to the side panel, which serves as the primary load-bearing component. This design integrates the connecting structure with the core load-bearing component, ensuring that in the event of a collision, the impact load can be effectively transferred and dispersed to the adjacent entire protective module through the connecting plate. This avoids excessive stress concentration at local connection points and fundamentally solves the problem of easy breakage in traditional independent connecting parts. The large-area fit between the connecting plate and the side panel makes the strength of the connection point nearly consistent with that of the side panel itself, greatly enhancing the impact resistance and structural reliability of the connection point. This ensures that the entire guardrail, composed of multiple connected modules, has continuous, stable, and high-strength protective performance, and will not fail under impact due to weak connections.

[0007] Furthermore, it also includes a crossbeam, which is mounted on top of the protective module via a support component.

[0008] Furthermore, a base is fixedly installed on the top of the protective module, and the supporting component is fixed on the base.

[0009] Furthermore, the crossbeam is a small C-shaped crossbeam, a rectangular crossbeam, or a large C-shaped crossbeam.

[0010] Furthermore, the top of the support component is provided with a groove; when the crossbeam is a small C-shaped crossbeam or a rectangular crossbeam, its end is accommodated in the groove at the top of the support component and fixed by fasteners.

[0011] Furthermore, when the crossbeam is a large C-shaped crossbeam, the supporting component is housed in the groove of the large C-shaped crossbeam and fixed by fasteners; the bottom of the main support is provided with through holes for inserting anchor bolts, which can strengthen the fixation of the protective module on the basis of filling and fixing.

[0012] Furthermore, reinforced guardrails are installed between adjacent guardrail units. These reinforced guardrails include a connecting frame and transition side plates on both sides of the connecting frame. The cross-sectional shape of the transition side plates is the same as that of the side plates. The side plates at the ends of the guardrail units are detachably connected to the transition side plates of the reinforced guardrails via connecting plates. A through hole is provided at the bottom of the connecting frame for inserting anchor bolts. The transition side plates use the same connection method as the side plates of the standard protective modules, achieving a high-strength transition connection between the standard modules and the anchor points. The through hole at the bottom of the connecting frame allows for fixing to the ground with anchor bolts, providing a crucial rigid anchor point for the entire flexible guardrail system. This effectively prevents the entire guardrail system from shifting under significant impact, making it particularly suitable for road sections requiring extremely high stability and enhancing the applicability and safety of the entire guardrail system.

[0013] Furthermore, the protective module also includes two end plates arranged opposite each other, and the end plates are connected to the bottom plate, the side plates and the main support near the end.

[0014] Furthermore, the protective module also includes a top plate disposed on the top, which is connected to the side plates, end plates and main support.

[0015] Furthermore, the top plate is formed by bending a plate and has gripping holes. Preferably, it also includes filler square tubes, with filler square tubes respectively provided at both ends of the main support, so that the shape of the side end of the main support matches the side shape of the side plate. By providing a top plate and opening gripping holes, disassembly, assembly, and subsequent maintenance and replacement are facilitated. At the same time, the connection between the top plate and other components further enhances the overall rigidity and sealing of the protective module. In the preferred embodiment, the filler square tubes are provided on both sides of the main support. This structure allows the support side end, which may originally be flat, to achieve a large-area close contact with the inner surface of the corrugated or bent side plate, significantly increasing the effective connection area and support area. This allows the impact force to be transmitted more evenly from the side plate to the main support, greatly improving the connection strength and deformation resistance inside the module.

[0016] Furthermore, the side plate is formed by stamping or bending a sheet metal, and its cross-section is either wavy or straight with rectangular bends. Whether wavy (such as a "three-wave" plate) or straight with rectangular bends, this structurally optimized cross-sectional shape greatly improves the bending stiffness and strength of the side plate without significantly increasing material usage, making it more resistant to impact. Simultaneously, this concave-convex or bent structure provides a foundation for precise fitting and tight bonding with the connecting plate and the filling square tube, a key prerequisite for achieving efficient force transmission in this invention.

[0017] Compared with existing technologies, the advantages of this invention are as follows: by setting a connecting plate that matches the side profile of the side plate, it can be detachably connected to the side plate, which is the main load-bearing component. This design integrates the connecting structure with the core load-bearing component, ensuring that in the event of a collision, the impact load can be effectively transferred and dispersed to the entire adjacent protective module through the connecting plate, avoiding excessive stress concentration at local connection points, and fundamentally solving the problem of easy breakage of traditional independent connecting parts.

[0018] The large-area bonding between the connecting plate and the side plate ensures that the strength of the connection point is consistent with that of the side plate itself, greatly enhancing the impact resistance and structural reliability of the connection point. This guarantees that the entire guardrail, composed of multiple connected modules, has continuous, stable, and high-strength protective performance, and will not fail under impact due to weak connections. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model.

[0020] Figure 2 This is a schematic diagram of the protective module in Embodiment 1 of this utility model.

[0021] Figure 3 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model.

[0022] Figure 4 This is a schematic diagram of the reinforced guardrail in Embodiment 2 of this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the crossbeam, which is a small C-shaped crossbeam, in Embodiment 3 of this utility model.

[0024] Figure 6 This is a schematic diagram of the connection between the reinforced guardrail and the small C-shaped crossbeam in Embodiment 3 of this utility model.

[0025] Figure 7 This is a schematic diagram of the rectangular beam structure in Embodiment 3 of this utility model.

[0026] Figure 8 This is a schematic diagram of the structure of the crossbeam, which is a large C-shaped crossbeam, in Embodiment 3 of this utility model.

[0027] Figure 9 This is a schematic diagram of the overall structure of Embodiment 4 of this utility model.

[0028] Figure 10 This is a schematic diagram of the structure of the "two-wave" side plate and the "three-wave" side plate assembled in Embodiment 4 of this utility model.

[0029] Figure 11This is a schematic diagram of the connection between two adjacent protection modules in the fifth embodiment of the present utility model.

[0030] Figure 12 This is a schematic structural diagram in which the cross beam is a small C-shaped cross beam in the embodiment of the present utility model.

[0031] In the figures: 1. Top plate; 2. Main body bracket; 3. Filled square tube; 4. Side plate; 5. End plate; 6. Connection plate; 7. Transition side plate; 8. Connection frame; 9. Base; 10. Support component; 11. Small C-shaped cross beam; 12. Large C-shaped cross beam; 13. Rectangular cross beam; 14. Protection module; 15. Reinforced guardrail; 16. Bottom plate. Detailed Description of the Embodiments

[0032] The accompanying drawings of the present utility model are only for illustrative purposes and shall not be construed as a limitation to the present utility model. To better illustrate the following embodiments, some components in the accompanying drawings may be omitted, enlarged or reduced, and do not represent the dimensions of actual products; for those skilled in the art, it is understandable that descriptions of some well-known structures in the accompanying drawings may be omitted.

[0033] First Embodiment As shown in Figure 1 and 2 this embodiment discloses a modular plate-type filled guardrail, which comprises a plurality of protection modules 14 connected end to end in sequence. Each of the protection modules 14 comprises a top plate 1, a bottom plate 16, a main body bracket 2, a filled square tube 3, a side plate 4 and an end plate 5.

[0034] The top plate 1 is arranged at the top, is formed by bending four edges of a single plate upwards, and is provided with a gripping hole for grasping, so as to facilitate installation or disassembly.

[0035] The bottom plate 16 is arranged at the bottom and has the same structure as the top plate 1.

[0036] The main body bracket 2 is firstly assembled from square tubes into a "ri"-shaped structure, and then filled square tubes 3 are respectively fixed to two side ends of the structure by welding or bolts; holes are drilled at the bottom of the main body bracket 2 for inserting anchor bolts, which are used to anchor the entire protection module 14 to the road surface.

[0037] The side plate 4 is formed by stamping or bending a plate member, and a plurality of rectangular grooves are machined thereon; a plurality of through holes are arranged at two ends for connecting adjacent side plates 4; the arrangement of the filled square tubes 3 on two sides of the main body bracket 2 is mainly to make the shape of the side ends of the main body bracket 2 match the shape of the side surfaces of the side plate 4, so that the main body bracket 2 can fully contact and support the side plate 4, and the connection strength between the main body bracket 2 and the side plate 4 can be improved.

[0038] The end plate 5 has an outer contour shape that corresponds to the shape of the main support 2; the two ends of the end plate 5 are bent, and the shape of the two ends matches the side shape of the side plate 4, so that the side ends of the end plate 5 and the side of the side plate 4 can be tightly spliced ​​together.

[0039] The connecting plate 6 is formed by bending a plate and its shape matches the side shape of the side plate 4. It has several through holes for connecting two adjacent side plates 4.

[0040] Assembly of the protective module 14: First, place a base plate 16 at the bottom with the bend of the base plate 16 facing upwards. Then, place a main support 2 at each end of the base plate 16. Several main supports 2 are spaced apart between the two ends of the base plate 16. Next, place a top plate 1 on top of the several main supports 2 with the bend of the top plate 1 facing upwards. Fasten two side plates 4 on both sides. The side of the side plate 4 can fit tightly with the side end of each main support 2. Connect the side plate 4 to each main support 2 with fasteners such as bolts or rivets. At the same time, connect the side plate 4 to the top plate 1 and the base plate 16 with bolts respectively. Finally, fix the upper end plate 5 on the main supports 2 at both ends respectively. At the same time, fix the end plate 5 to the side plate 4, the top plate 1, and the base plate 16 respectively.

[0041] When connecting several protection modules 14, the side plates 4 of two adjacent protection modules 14 can be connected through the connecting plate 6 to achieve the connection.

[0042] Example 2 like Figure 3 and 4 As shown, this embodiment discloses another modular panel-type infill guardrail. Unlike the first embodiment, in this embodiment, the connection of several protective modules 14 is carried out in another way: two adjacent protective modules 14 are connected by a reinforced guardrail 15, which includes a connecting frame 8 and a transition side plate 7.

[0043] The connecting frame 8 is formed by connecting at least two main supports 2 through several square tubes arranged horizontally between them. The bottom of the connecting frame 8 is drilled with anchor bolts for anchoring to the road surface.

[0044] The transition side plate 7 has the same structure as the side plate 4, but is shorter in length than the side plate 4.

[0045] The transition side plates 7 are fixed on both sides of the connecting frame 8 to assemble the reinforced guardrail 15. During connection, the transition side plate 7 of the reinforced guardrail 15 is connected to the side plate 4 of the protective module 14 through the connecting plate 6.

[0046] The aforementioned embodiment is a fill-in anchor-free guardrail, which mainly increases the friction between the guardrail and the ground by filling the guardrail with counterweights such as sand, gravel, soil, and water, thus achieving anchor-free operation. This embodiment's product is a fill-in anchored guardrail, primarily used in road sections with high safety requirements. Based on the fill-in anchor-free guardrail, a reinforced guardrail 15 with anchoring function is added for anchoring, thereby improving the protection level.

[0047] Example 3 like Figure 5-8 As shown, this embodiment discloses a beam-type infill guardrail based on the above, mainly by adding a beam. When installing the beam, firstly, a base 9 is fixed on the top of the top plate 1 of the protective module 14 or the top of the connecting frame 8. The base 9 can be a plate or a pipe, such as a square tube as shown in the figure. Then, a support component 10 is fixed on the base 9. The support component 10 can be a pipe or a bent rib, preferably a pipe because of its higher structural strength. Then, the two ends of the beam are fixed to two adjacent support components 10 with fasteners. The beam can be a small C-shaped beam 11 or a rectangular beam 13 with a width smaller than that of the support component 10, or a large C-shaped beam with a width larger than that of the support component 10. Of course, it can also be replaced with other types of beams.

[0048] Example 4 like Figure 9-10 As shown, this embodiment differs from Embodiment 1 in that it discloses a wave-shaped filled guardrail, including a base plate 16, a main support 2, and side plates 4. Unlike Embodiment 1, in this embodiment: The base plate 16 is formed by bending the two sides of a plate upwards.

[0049] The main support 2 is assembled from square tubes into a rectangular structure. The length of the square tubes can be increased to increase the height according to the height dimension.

[0050] Side panel 4 is formed by bending a plate and has a "corrugated" cross-section. The number of corrugations can be "two", "three", "four", or other types. Several through holes are provided at both ends for reconnecting adjacent side panels 4. Side panel 4 can be obtained by upgrading and modifying old corrugated guardrail panels after demolition, so as to realize the recycling and reuse of a large number of old guardrail panels that have been demolished.

[0051] The connecting plate 6 is formed by bending a plate and its shape matches the side profile of the side plate 4. It has several through holes for connecting two adjacent side plates 4.

[0052] Assembly of the protective module 14: First, place a base plate 16 at the bottom with the bend of the base plate 16 facing upwards. Then, place a main support 2 at each end of the base plate 16, and place several main support 2s at intervals between the ends of the base plate 16. Then, fasten several corrugated side plates 4 onto both sides (they can be assembled arbitrarily from bottom to top according to the height, for example...). Figure 9 As shown, it can be a combination of two "two-wave" waveform side panels, such as... Figure 10 As shown, it can also be a combination of a "three-wave" side plate 4 and a "two-wave" side plate 4, or similarly, a combination of side plates 4 with any number of waves. The side plates 4 are connected to each main support 2 by bolts, and the side plates 4 are also connected to the bottom plate 16 by bolts. At this point, it can be placed on the road after being filled with sand, stones, or other fillers. Furthermore, analogous to Embodiment 1, a top plate 1 can be fixed at the top, and end plates 5 of corresponding shapes can be fixed at the ends. Similarly, the solution in Embodiment 1 can also be used without the top bottom plate 16 and the end plates 5.

[0053] When connecting several protection modules 14, the side plates 4 of two adjacent protection modules 14 can be connected through the connecting plate 6 to achieve the connection.

[0054] Example 5 like Figure 11 As shown, this embodiment discloses another connection method for wave-filled guardrails. Unlike Embodiment 4, in this embodiment, one end of the protective module 14 does not have a main support 2. When two adjacent protective modules 14 are connected, the end of one protective module 14 with the main support 2 is connected to the end of the other protective module 14 without the main support 2 via a connecting plate 6. This method saves more materials, but it is a non-segmentable connection method. That is, after being disassembled from the connection point, each protective module 14 lacks a main support 2 at one end and cannot be used independently. In Embodiment 4, as... Figure 10 As shown, this method is a sectional connection, which can be disassembled from the connection point to obtain the complete protective module 14, which can be used independently. This method results in higher structural strength at the connection point.

[0055] Example 6 like Figure 12 As shown, this embodiment discloses a beam-type corrugated fill guardrail based on embodiments four and five. When installing the beam, support components 10 are fixed to the top of several main support brackets 2, and then both ends of the beam are fixed to two adjacent support components 10 using fasteners. The beam can be a small C-shaped beam or a rectangular beam 13 with a width smaller than that of the support component 10, or a large C-shaped beam 12 with a width greater than that of the support component 10. Figure 12 Only the small C-shaped beam, rectangular beam 13, and large C-shaped beam 12 are shown in the analogous embodiment three. Figure 5-8 (These will not be shown individually), of course, other types of beams can also be installed.

[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the technical solution of this utility model, and are not intended to limit the specific implementation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A modular fill-type barrier characterized in that, include: A plurality of interconnected guardrail units, wherein each guardrail unit includes a plurality of sequentially connected protective modules (14). The protective module (14) includes two side plates (4) arranged opposite to each other on the left and right, and a bottom plate (16) arranged at the bottom. The two side plates (4) are connected to the two sides of the bottom plate (16) to form a cavity for accommodating the filler. Several main support brackets (2) are arranged at intervals inside the protective module (14). It also includes a connecting plate (6), which connects two adjacent protective modules (14). The side plates on both sides of the two adjacent protective modules (14) are respectively connected. The two ends of the connecting plate (6) are respectively detachably connected to the side plates (4) of the two adjacent protective modules (14), and the outline of the connecting plate (6) is adapted to the side outline of the side plate (4).

2. A modular fill barrier according to claim 1, wherein: It also includes a crossbeam, which is mounted on top of the protective module (14) via a support member (10).

3. A modular fill barrier according to claim 2, wherein: The top of the protective module (14) is fixedly mounted with a base (9), and the support component (10) is fixed on the base (9).

4. A modular infill guardrail according to claim 2, characterized in that: The crossbeam is a small C-shaped crossbeam (11), a rectangular crossbeam (13), or a large C-shaped crossbeam (12).

5. A modular infill guardrail according to claim 4, characterized in that: The top of the support component (10) is provided with a groove; when the crossbeam is a small C-shaped crossbeam (11) or a rectangular crossbeam (13), its end is accommodated in the groove at the top of the support component (10) and fixed by fasteners.

6. A modular infill guardrail according to claim 4, characterized in that: When the crossbeam is a large C-shaped crossbeam (12), the support component (10) is housed in the groove of the large C-shaped crossbeam (12) and fixed by fasteners.

7. A modular infill guardrail according to claim 6, characterized in that: The bottom of the main support (2) is provided with a through hole for inserting anchor bolts.

8. A modular infill guardrail according to claim 1, characterized in that: A reinforced guardrail (15) is provided between adjacent guardrail units. The reinforced guardrail (15) includes a connecting frame (8) and transition side plates (7) provided on both sides of the connecting frame (8). The cross-sectional shape of the transition side plate (7) is the same as that of the side plate (4). The side plate (4) at the end of the guardrail unit and the transition side plate (7) of the reinforced guardrail (15) are detachably connected by a connecting plate (6). The bottom of the connecting frame (8) is provided with a through hole for inserting anchor bolts.

9. A modular infill guardrail according to claim 1, characterized in that: The protective module (14) also includes two end plates (5) arranged opposite to each other, and the end plates (5) are connected to the bottom plate (16), the side plate (4) and the main support (2) near the end.

10. A modular infill guardrail according to claim 9, characterized in that: The protective module (14) also includes a top plate (1) disposed on the top, which is connected to the side plate (4), the end plate (5) and the main support (2); the top plate (1) is provided with gripping holes.

11. A modular infill guardrail according to claim 10, characterized in that: It also includes a filling square tube (3), and the two sides of the main support (2) are respectively provided with filling square tubes (3) so that the side shape of the main support (2) matches the side shape of the side plate (4).

12. A modular infill guardrail according to any one of claims 1-11, characterized in that: The side plate (4) is formed by stamping or bending of a plate, and its cross-section is wavy or straight with rectangular bends.

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