Bridge protective fence

Abstract

The utility model belongs to the technical field of bridge guardrails, and particularly relates to a bridge guardrail which comprises two stand columns, the inner walls of the bottoms of the two stand columns are each fixedly provided with a set of limiting plates, each set of limiting plates are symmetrically arranged front and back relative to the corresponding stand column, a top base is installed at the top ends of the stand columns, and a protection assembly is installed in the top base. A supporting assembly is arranged on the outer side of the protection assembly, a bottom transverse rod is arranged at the bottom end of the supporting assembly, limiting guide grooves are formed in the left end and the right end of the bottom transverse rod and the left end and the right end of the top base correspondingly, and a handrail rod is fixedly installed at the top of the top base. The bridge protective fence is of a split type design, can be detached and shrunk to achieve the purpose of being convenient to transport, is simple in installation process, only needs to replace damaged parts when parts deform due to accident impact, does not need to be integrally detached and replaced, and can reduce maintenance cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge guardrails, in particular to a bridge guardrail. Background Art

[0002] During the construction of bridges and roads, in order to improve the driving safety of pedestrians and vehicles, guardrails are installed at the edge of the bridge road. The main purpose is to prevent pedestrians and vehicles from accidentally crossing the bridge. It has the function of preventing vehicles and pedestrians from breaking through, passing under, or climbing over the road bridge, as well as beautifying the bridge.

[0003] In the Chinese utility patent publication number CN220538400U, a bridge guardrail is proposed, which achieves the effect of quickly installing the first guardrail and the second guardrail by setting an adjustment device, avoiding the problem that the workers need to use tools and screws to fix the first guardrail and the second guardrail multiple times during installation, resulting in cumbersome installation operations and low installation efficiency.

[0004] However, during the construction of the bridge guardrail, it was found that the bridge guardrail still had the following defects and deficiencies: the bridge guardrail was an integrated design, which was large in size, and inconvenient in the transportation and installation process. Moreover, when the guardrail was deformed due to an accident, the entire guardrail needed to be replaced, and the maintenance cost was too high. The guardrail did not have the function of replacing partial parts. Therefore, it is urgent to improve the existing bridge guardrail and provide a bridge guardrail that is easy to replace parts. Utility Model Content

[0005] The purpose of the utility model is to provide a bridge guardrail with reasonable design, simple structure, split design, quick installation, and convenient component replacement when damaged, in order to solve the problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A bridge guardrail comprises two columns, a group of limit plates are fixed to the bottom inner walls of the two columns, two limit plates are arranged in each group symmetrically about the columns, a top seat is installed at the top of the column, a protection component is installed inside the top seat, a support component is provided on the outside of the protection component, a bottom cross bar is provided at the bottom end of the support component, limit guide grooves are respectively provided inside the left and right ends of the bottom cross bar and the top seat and are connected to the support assembly, and a handrail is fixedly installed on the top of the top seat.

[0008] Preferably, the bottoms of both left and right ends of the top seat are provided with vertically downward convex parts, and the top of the limiting plate is provided with a groove structure, and the convex parts are engaged and connected with the limiting plate.

[0009] Preferably, the protective assembly includes a horizontal axis, a spiral spring and a flexible metal wire mesh, the left and right ends of the horizontal axis are connected to the top seat through the spiral spring, one end of the flexible metal wire mesh passes through the bottom of the top seat and is welded and fixed to the outer wall of the horizontal axis, and the other end of the flexible metal wire mesh is welded and fixed to the middle position of the upper end of the bottom cross bar.

[0010] Preferably, the length of the bottom cross bar is equal to the distance between the two columns, and the width of the bottom cross bar is equal to the distance between the two limit plates.

[0011] Preferably, the support assembly comprises a first support rod, a second support rod and a T-shaped column, a second support rod of equal length is rotatably mounted on the outer side of the first support rod, and both ends of the first support rod and the second support rod are fixedly connected with T-shaped columns.

[0012] Preferably, the T-shaped columns at the top of the first support rod and the second support rod are respectively guided and moved in two limit guide grooves opened inside the top seat, and the T-shaped columns at the bottom of the first support rod and the second support rod are respectively guided and moved in two limit guide grooves opened inside the bottom cross bar.

[0013] Preferably, the longitudinal cross-section of the limiting guide groove is in a "convex" shape, and the two ends of the bottom cross bar are fixedly connected to two column bolts respectively.

[0014] Preferably, a docking hole is provided inside one end of the handrail, and a plug post is welded and fixed at the center of the other end of the handrail, and the plug post and the docking hole are adapted to each other.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the scheme of the present utility model, the top seat can be installed on the top of the column by means of the convex part, and then the bottom cross bar is manually controlled to move vertically downward between the two columns until the flexible metal wire mesh wound on the outside of the horizontal axis is completely pulled out from the inside of the top seat. At this time, the two ends of the bottom cross bar are respectively located on the inner sides of the two sets of limit plates, and then the two ends of the bottom cross bar are fixedly connected to the two columns by bolts to complete the assembly of the guardrail. Compared with the comparative documents, the bridge guardrail of the present application is a split design, which can be disassembled and reduced to facilitate transportation, and the installation process is simple. At the same time, when an accident occurs and the components are deformed, only the damaged components need to be replaced, and there is no need to disassemble the entire component, which can reduce maintenance costs.

[0017] The utility model discloses that when the bottom cross bar is pulled downward vertically to assemble the guardrail, the T-shaped column located in the limit guide groove is used to guide and move, so that the first support rod and the second support rod can be rotated and opened, which can not only locate the distance between the top seat and the bottom cross bar and realize the stable engagement of the top seat with the column through the convex part, but also reinforce and protect the flexible metal wire mesh, thereby improving the impact resistance of the guardrail and increasing the strength of the guardrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions, and the following description is made with respect to the drawings:

[0019] Figure 1 This is a three-dimensional front view structural diagram of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the column and the limiting plate of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional rear view structure of the utility model;

[0022] Figure 4 It is a front view structural diagram of the top seat and the convex part of the utility model;

[0023] Figure 5 This is a schematic diagram of the overall front view structure of the protective component of the utility model;

[0024] Figure 6 This is a schematic diagram of the overall side view structure of the support assembly of the utility model;

[0025] Figure 7 It is a front view structural schematic diagram of the support assembly of the utility model in a folded state.

[0026] In the figure:

[0027] 1. Column; 2. Limit plate; 3. Top seat; 4. Protrusion; 5. Protection assembly; 51. Horizontal axis; 52. Vortex spring; 53. Flexible metal wire mesh; 6. Support assembly; 61. First support rod; 62. Second support rod; 63. T-shaped column; 7. Bottom cross bar; 8. Limit guide groove; 9. Handrail; 10. Docking hole; 11. Insert column. DETAILED DESCRIPTION

[0028] The embodiments described below are only some of the embodiments of the present invention and do not represent all the embodiments consistent with the present invention. Now, in conjunction with the accompanying drawings, the exemplary embodiments are described as follows:

[0029] like Figure 1-7As shown in one of the figures, the bridge guardrail of the utility model comprises two columns 1, a group of limiting plates 2 are fixed to the bottom inner walls of the two columns 1, and each group of limiting plates 2 is symmetrically arranged with respect to the column 1. A top seat 3 is installed at the top of the column 1, a protective component 5 is installed inside the top seat 3, a supporting component 6 is provided on the outside of the protective component 5, a bottom cross bar 7 is provided at the bottom end of the supporting component 6, and limiting guide grooves 8 are respectively provided inside the bottom cross bar 7 and the left and right ends of the top seat 3 and are connected to the supporting component 6, and a handrail 9 is fixedly installed on the top of the top seat 3.

[0030] As a preferred embodiment, based on the above structure, further, the bottoms of the left and right ends of the top seat 3 are provided with vertical downward protrusions 4, the top of the limiting plate 2 is provided with a groove structure, and the protrusions 4 are snap-connected with the limiting plate 2.

[0031] In this embodiment, the protrusion 4 is provided to facilitate the engagement and positioning installation between the top seat 3 and the two pillars 1 .

[0032] As a preferred embodiment, on the basis of the above structure, the protective component 5 further includes a horizontal axis 51, a spiral spring 52 and a flexible metal wire mesh 53, the left and right ends of the horizontal axis 51 are connected to the top seat 3 through the spiral spring 52, one end of the flexible metal wire mesh 53 passes through the bottom of the top seat 3 and is welded and fixed on the outer wall of the horizontal axis 51, and the other end of the flexible metal wire mesh 53 is welded and fixed to the middle position of the upper end of the bottom cross bar 7.

[0033] In this embodiment, by setting the spiral spring 52, it is convenient to control the automatic rotation of the horizontal axis 51 to reel in the flexible metal mesh 53 when the guardrail is disassembled, and by completely pulling the flexible metal mesh 53 out from the inside of the top seat 3, a more sufficient safety isolation effect can be achieved.

[0034] As a preferred implementation, based on the above structure, further, the length of the bottom cross bar 7 is equal to the distance between the two columns 1 , and the width of the bottom cross bar 7 is equal to the distance between the two limit plates 2 .

[0035] In this embodiment, the two limiting plates 2 are provided to improve the positioning stability of the bottom cross bar 7 between the two upright posts 1 .

[0036] As a preferred embodiment, on the basis of the above structure, further, the support assembly 6 includes a first support rod 61, a second support rod 62 and a T-shaped column 63, and the outer side of the first support rod 61 is rotatably mounted with a second support rod 62 of the same length as the first support rod 61, and both ends of the first support rod 61 and the second support rod 62 are fixedly connected with the T-shaped column 63.

[0037] In this embodiment, by utilizing the provision of the support assembly 6, a support effect can be provided for the fully pulled-out flexible metal wire mesh 53, thereby enhancing the overall strength of the guardrail.

[0038] As a preferred embodiment, on the basis of the above structure, further, the T-shaped columns 63 at the top of the first support rod 61 and the second support rod 62 are respectively guided and moved in the two limiting guide grooves 8 opened inside the top seat 3, and the T-shaped columns 63 at the bottom of the first support rod 61 and the second support rod 62 are respectively guided and moved in the two limiting guide grooves 8 opened inside the bottom cross bar 7.

[0039] In this embodiment, by opening the limiting guide groove 8 and guiding the T-shaped column 63 located on the inner side thereof, it is convenient to control the first support rod 61 and the second support rod 62 to rotate and open when the bottom cross bar 7 is pulled down and away from the top seat 3, so as to support the flexible metal wire mesh 53 and position the top seat 3 to ensure a firm engagement between the top seat 3 and the column 1.

[0040] As a preferred embodiment, on the basis of the above structure, further, the longitudinal cross section of the limiting guide groove 8 is a "convex" shape, and the two ends of the bottom cross bar 7 are respectively fixedly connected to the two columns 1 by bolts.

[0041] In this embodiment, the guardrail can be completely assembled by fixing the two ends of the bottom cross bar 7 with the two columns 1 with bolts. The guardrail is a split design, which is easy to disassemble and transport, and the installation process is simple. At the same time, when an accident occurs and the parts are deformed, only the damaged parts need to be replaced without the need for overall replacement, which can reduce maintenance costs.

[0042] As a preferred embodiment, based on the above structure, further, a docking hole 10 is opened inside one end of the handrail 9, and a plug post 11 is welded and fixed at the center of the other end of the handrail 9, and the plug post 11 and the docking hole 10 are adapted to each other.

[0043] In this embodiment, the docking hole 10 opened at one end of the handrail 9 and the plug post 11 fixed at the other end are used to facilitate the docking between two adjacent bridge guardrails and facilitate construction.

[0044] The working principle of the utility model is as follows:

[0045] When in use, firstly, the top seat 3 is mounted on the two pillars 1 by using the convex parts 4 at the bottom of both ends of the top seat 3 and the groove structure opened on the top of the pillar 1, and then the bottom cross bar 7 is manually pushed vertically downward between the two pillars 1 until the flexible metal wire mesh 53 wound on the outside of the horizontal axis 51 is completely pulled out from the inside of the top seat 3. Figure 3As shown, the two ends of the bottom cross bar 7 are respectively located on the inner sides of the two groups of limit plates 2, and then the two ends of the bottom cross bar 7 are fixed to the two columns 1 by bolts, and the guardrail assembly can be completed. When the bottom cross bar 7 moves vertically downward, the "convex"-shaped limit guide grooves 8 are provided inside the top seat 3 and the two ends of the bottom cross bar 7, so that the T-shaped columns 63 at the two ends of the first support rod 61 and the second support rod 62 can move stably in the corresponding limit guide grooves 8, and the first support rod 61 and the second support rod 62 can be moved by Figure 7 The state shown in the figure is turned on and opened as follows Figure 6 In the state shown in the figure, the unfolded support assembly 6 can not only realize the positioning of the distance between the top seat 3 and the bottom cross bar 7, but also ensure the top seat 3 is firmly engaged and positioned with the column 1 through the protrusion 4, thereby ensuring the stability of the guardrail during assembly and use, and can also play a role in reinforcing and protecting the flexible metal wire mesh 53, thereby improving the anti-collision ability of the guardrail and making the guardrail stronger;

[0046] In summary, compared with the reference document, the bridge guardrail of the present application is of split design as a whole, composed of a plurality of components, which can be disassembled and reduced to facilitate transportation, and the installation process is also relatively simple. By utilizing the advantages brought by the split design, when the guardrail is damaged and deformed by an accident, only the damaged components need to be replaced, without the need for overall disassembly and replacement, which can reduce the maintenance cost;

[0047] It should be particularly noted that the docking hole 10 opened at one end of the handrail 9 and the plug post 11 fixed at the other end of the handrail 9 facilitate the docking between two adjacent bridge guardrails and facilitate construction.

[0048] The above are only preferred specific embodiments of the utility model and are not intended to limit the protection scope of the utility model; any equivalent changes, modifications, substitutions and variations made by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the protection scope determined by the claims.

Claims

1. A bridge guardrail, comprising two columns (1), characterized in that: A group of limiting plates (2) are fixed to the inner walls of the bottoms of the two columns (1), and each group of limiting plates (2) is symmetrically arranged with respect to the columns (1). A top seat (3) is installed at the top of the column (1), and a protective component (5) is installed inside the top seat (3). A supporting component (6) is arranged on the outside of the protective component (5), and a bottom cross bar (7) is arranged at the bottom end of the supporting component (6). The bottom cross bar (7) and the left and right ends of the top seat (3) are respectively provided with limiting guide grooves (8) connected to the supporting component (6), and a handrail (9) is fixedly installed on the top of the top seat (3).

2. A bridge guardrail according to claim 1, characterized in that: The bottoms of both left and right ends of the top seat (3) are provided with vertically downward convex parts (4), the top of the limiting plate (2) is provided with a groove structure, and the convex parts (4) are snap-fitted and connected with the limiting plate (2).

3. A bridge guardrail according to claim 1, characterized in that: The protection component (5) comprises a transverse axis (51), a spiral spring (52) and a flexible metal wire mesh (53); the left and right ends of the transverse axis (51) are connected to the top seat (3) via the spiral spring (52); one end of the flexible metal wire mesh (53) passes through the bottom of the top seat (3) and is welded and fixed to the outer wall of the transverse axis (51); the other end of the flexible metal wire mesh (53) is welded and fixed to the middle position of the upper end of the bottom cross bar (7).

4. A bridge guardrail according to claim 3, characterized in that: The length of the bottom cross bar (7) is equal to the distance between the two upright posts (1), and the width of the bottom cross bar (7) is equal to the distance between the two limit plates (2).

5. The bridge guardrail according to claim 1, characterized in that: The support assembly (6) comprises a first support rod (61), a second support rod (62) and a T-shaped column (63); a second support rod (62) having the same length as the first support rod (61) is rotatably mounted on the outer side of the first support rod (61); and both ends of the first support rod (61) and the second support rod (62) are fixedly connected with the T-shaped column (63).

6. A bridge guardrail according to claim 5, characterized in that: The T-shaped columns (63) at the top of the first support rod (61) and the second support rod (62) are respectively guided and moved in two limiting guide grooves (8) opened inside the top seat (3), and the T-shaped columns (63) at the bottom of the first support rod (61) and the second support rod (62) are respectively guided and moved in two limiting guide grooves (8) opened inside the bottom cross bar (7).

7. A bridge guardrail according to claim 6, characterized in that: The longitudinal cross section of the limiting guide groove (8) is in the shape of a "convex" character, and the two ends of the bottom cross bar (7) are respectively fixedly connected to the two upright posts (1) by bolts.

8. The bridge guardrail according to claim 1, characterized in that: A docking hole (10) is provided inside one end of the handrail (9), and a plug post (11) is welded and fixed at the center of the other end of the handrail (9), and the plug post (11) and the docking hole (10) are adapted to each other.

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