Protective fence for highway bridge

Abstract

The utility model relates to the technical field of highway bridges, in particular to a protective fence for highway bridges, which comprises at least two bases, the top of each base is fixedly connected with a stand column, the opposite sides of the two bases are fixedly connected with support lugs respectively, the two support lugs are hinged with hinge seats respectively, and the hinge seats are hinged with the stand columns respectively. The bottoms of the two hinge seats are jointly connected with a distance beam used for determining the distance between the two bases. When the protective fence is assembled, one end of the distance beam is hinged to the supporting lugs through the hinge seats, the other end of the distance beam is hinged to the supporting lugs through the other set of hinge seats in a matched mode, the other base is installed at the other end of the distance beam, the distance between the two bases can be rapidly determined through the distance beam, and the two bases are connected into a whole. The guardrail assembly is directly installed between the two stand columns, operation can be conducted by a single person in the installation process, the guardrail assembly does not need to be supported, manpower input is reduced, meanwhile, the weight of the bottom of the guardrail can be increased through the distance beams, and therefore the purpose of preventing toppling is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of highway bridges, and particularly relates to a protective fence for highway bridges. BACKGROUND

[0002] Setting up protective fences on highway bridges can play a role in separating lanes, helping drivers better identify road boundaries and avoiding entering opposite lanes or non-driving areas. In the prior art, protective fences are usually designed to be detachable to facilitate transportation to the destination or replacement of damaged fences.

[0003] For example, the protective fence for highway bridges disclosed in the Chinese patent documents with application numbers CN202420310110.7 or CN202122166018.7 has a detachable design for the fence assembly in the middle and the two side posts, but when assembling the above protective fence on site, one side of the fence assembly is usually connected with one of the posts, and then the other post is moved and connected with the fence assembly. This method requires multiple people to work together, and the fence assembly needs to be supported during assembly, which is not very convenient to operate and time-consuming and labor-intensive. SUMMARY

[0004] Therefore, the purpose of the utility model is to provide a protective fence for highway bridges to solve the technical problem that the protective fence for highway bridges in the prior art requires multiple people to work together when assembling on site, and the fence assembly needs to be supported, which is not very convenient to operate and time-consuming and labor-intensive.

[0005] The utility model achieves the following technical solutions:

[0006] A protective fence for highway bridges includes at least two bases, each of which is fixedly connected with a post at the top, and each of the opposite sides of the two bases is fixedly connected with an ear, and each of the two ears is hingedly connected with a hinge seat, and the bottoms of the two hinge seats are jointly connected with a distance-setting beam for determining the distance between the two bases.

[0007] Further, each of the bases is fixedly connected with a post at the top, and at least two installation slots are formed in the front surface of the post along its height direction, and each of the installation slots is fixedly connected with a plug rod, and the end face of the plug rod is arranged outward of the installation slot;

[0008] Each of the plug rods is respectively inserted with an installation head, and the installation heads are jointly connected with a fence assembly.

[0009] Further, the guardrail assembly comprises at least two rails, and the two rails are horizontally connected between the two mounting heads respectively, two sleeves are sleeved on each rail at intervals, and a connecting rod is crossly hinged between two sleeves with distance difference in vertical and horizontal directions, and a support rod is hinged between the two connecting rods.

[0010] Further, a cylinder is fixedly sleeved between the two sleeves on the same rail, and the outer diameter of the cylinder is larger than the inner diameter of the sleeve.

[0011] Further, a cover plate is hinged at the mounting groove, the cover plate is located in front of the mounting head and in surface contact with the mounting head, and a clamping block is fixedly arranged on the side of the cover plate facing the mounting head.

[0012] Further, a limiting cylinder is vertically fixedly arranged on the surface of the cover plate facing outward, an installation plate is fixedly arranged on the outer surface of the stand, an installation cylinder is fixedly arranged on the installation plate, a limiting rod is inserted into the installation cylinder, and the cover plate can be limited from rotating when the limiting rod is inserted downward into the limiting cylinder.

[0013] Further, a limiting ring is fixedly arranged on the outer side of the limiting rod, the limiting ring is located below the installation cylinder, and the outer diameter of the limiting ring is larger than the inner diameter of the installation cylinder.

[0014] Further, a clamping plate is fixedly arranged on the surface of the installation plate facing outward, and the clamping plate is used for limiting the movement of the limiting rod.

[0015] The beneficial effects of the utility model lie in:

[0016] 1. When assembling the guardrail, one end of the fixed distance beam is hinged with the support lug through the hinge seat, the other end of the fixed distance beam is hinged with the support lug through another set of hinge seats, another base is installed in cooperation, the distance between the two bases can be quickly determined through the fixed distance beam, the two bases are integrated, then the guardrail assembly is directly installed between the two stand columns, one person can operate during the installation process, the guardrail assembly does not need to be supported, the labor input is reduced, and the weight of the bottom of the guardrail can be increased through the fixed distance beam, so that the purpose of preventing the guardrail from falling is achieved.

[0017] 2. When installing the guardrail assembly between two posts, the guardrail assembly is unfolded by pulling two rails outward, two sleeves on the same rail slide towards each other when the guardrail assembly is unfolded, when the sleeves cannot continue to slide, the guardrail assembly is unfolded, and four mounting heads at four corners of the guardrail assembly are inserted into the mounting slot from front to back, and specifically inserted into the insertion rod, so that the guardrail assembly is quickly positioned and installed, thereby improving the efficiency of the guardrail installed on the highway bridge, and the operation mode can be performed by one person, and the operation is more convenient, and time and labor are saved.

[0018] 3. The cover plate covers the mounting slot, and then the limiting rod is inserted into the limiting cylinder by moving downward, when the limiting rod is inserted into the limiting cylinder, the rotation of the cover plate is limited, so that the cover plate is always located in front of the mounting head, the mounting head is prevented from being separated from the mounting slot, and the stability of the guardrail assembly is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the utility model highway bridge guardrail.

[0020] Figure 2 It is an enlarged view of A in the utility model. Figure 1

[0021] Figure 3 It is a connection schematic view of the insertion rod and the mounting head of the utility model highway bridge guardrail.

[0022] Figure 4 It is a connection schematic view of the cover plate and the clamping block of the utility model highway bridge guardrail.

[0023] Figure 5 It is a connection schematic view of the rail and the cylinder of the utility model highway bridge guardrail.

[0024] In the figure: 1 - base, 2 - lug, 3 - hinge seat, 4 - distance beam, 5 - post, 6 - mounting slot, 7 - insertion rod, 8 - mounting head;

[0025] 9 - guardrail assembly, 91 - rail, 92 - sleeve, 93 - connecting rod, 94 - support rod, 95 - cylinder;

[0026] 10 - cover plate, 11 - clamping block, 12 - limiting cylinder, 13 - mounting plate, 14 - mounting cylinder, 15 - limiting rod, 16 - limiting ring, 17 - clamping plate. DETAILED DESCRIPTION

[0027] ​The typical embodiments embodying the features and advantages of the present application will be described in detail in the following description. It should be understood that the present application can have various changes on different embodiments, which do not deviate from the scope of the present application, and the description and drawings in essence are used for description, not for limiting the present application.

[0028] In the description of the present application, the orientation or position relationship indicated by the terms "upper", "lower" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the structure referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0029] Please refer to Figure 1 , the present application provides a technical scheme: a protective fence for highway bridge, including at least two bases 1, the base 1 is used for protective fence installation on highway bridge, in the present application, the base 1 is convex, of course, it can also be other shapes, such as rectangular, in the present application, not too much limit; the opposite side of two bases 1 is fixedly connected with lug 2 respectively, and two lugs 2 are hingedly connected with hinge seat 3 respectively through pin shaft, the bottom of two hinge seats 3 is commonly connected with distance setting beam 4 for determining the distance between two bases 1, the bottom of distance setting beam 4 is open, when assembling the protective fence, one end of distance setting beam 4 is hingedly connected with lug 2 through hinge seat 3, then another base 1 is installed at the other end of distance setting beam 4, finally, fence assembly is installed between two vertical columns 5, so that the fence assembly does not need to be supported during installation, and the fence assembly can be directly installed, thereby reducing the labor input.

[0030] Please refer to Figure 1 , Figure 3 and Figure 4 , the top of each base 1 is fixedly connected with a vertical column 5 through a bolt, the vertical column 5 is hollow, at least two installation grooves 6 are formed in the front surface of vertical column 5 along the height direction thereof, the installation groove 6 is a rectangular groove, a plug rod 7 is fixedly connected in each installation groove 6, the end face of plug rod 7 is arranged outward of installation groove 6, an installation head 8 is inserted on each plug rod 7, and a fence assembly 9 is commonly connected between a plurality of installation heads 8. Specifically, installation head 8 can be inserted into installation groove 6 through plug rod 7, plug rod 7 can limit installation head 8 in horizontal direction, and preliminary installation of fence assembly 9 is realized.

[0031] Please refer to Figure 1 , Figure 3 and Figure 5The guardrail assembly 9 comprises at least two rails 91, and the two rails 91 are respectively connected horizontally between two installation heads 8. The rail 91 is hollow and each rail 91 can be composed of a plurality of rods which are connected by clamping. The two sleeves 92 are sleeved on each rod at intervals, and the two sleeves 92 are crossly hinged with a connecting rod 93 in the vertical and horizontal directions. The two connecting rods 93 are hinged with a support rod 94. Specifically, the two rails 91 are connected by the support rod 94, the connecting rod 93 and the sleeve 92. When the two rails 91 are pushed together, the two connecting rods 93 rotate relative to the support rod 94, and the two sleeves 92 on the same rail 91 slide away from each other, so that the guardrail assembly 9 is folded and stored. Conversely, when the two rails 91 are pulled away from each other, the guardrail assembly 9 is unfolded and installed, so that the volume of the guardrail assembly 9 is changed, and the transportation is facilitated.

[0032] Please refer to Figure 1 and Figure 5 The two sleeves 92 on the same rail 91 are fixedly sleeved with a cylinder 95. The outer diameter of the cylinder 95 is greater than the inner diameter of the sleeve 92. When the guardrail assembly 9 is unfolded, the distance between the two sleeves 92 on the same rail 91 is limited, so that the unfolding height of the two rails 91 is limited, and the installation head 8 is inserted and installed in the installation slot 6.

[0033] Please refer to Figure 1 , Figure 2 and Figure 4 The installation slot 6 is hinged with a cover plate 10. The cover plate 10 is located in front of the installation head 8 and in surface contact with the installation head 8. The side of the cover plate 10 facing the installation head 8 is fixedly provided with a clamping block 11. The diameter of the clamping block 11 is the same as the diameter of the insertion rod 7. When the cover plate 10 is turned to cover the installation slot 6, the clamping block 11 is inserted into the through hole connecting the installation head 8 and the insertion rod 7, so as to further limit the installation head 8, avoid the installation head 8 from being separated from the installation slot 6, and ensure the stability of the installation of the guardrail assembly 9.

[0034] Please refer to Figure 2The outer surface of the column 5 is provided with a mounting plate 13, the mounting plate 13 is provided with a mounting cylinder 14, the mounting cylinder 14 is provided with a limiting rod 15, the diameter of the limiting rod 15 is matched with the inner diameter of the mounting cylinder 14, the limiting rod 15 is L-shaped, when the limiting rod 15 is inserted into the limiting cylinder 12, the rotation of the cover plate 10 can be limited, so that the cover plate 10 is always located in front of the mounting head 8, and the mounting head 8 is prevented from being separated from the mounting groove 6.

[0035] Please refer to Figure 2 The outer side of the limiting rod 15 is provided with a limiting ring 16, the limiting ring 16 is located below the mounting cylinder 14, and the outer diameter of the limiting ring 16 is greater than the inner diameter of the mounting cylinder 14, so that the limiting rod 15 is prevented from moving upward and being separated from the mounting cylinder 14.

[0036] Please refer to Figure 2 The outer surface of the mounting plate 13 is provided with a clamping plate 17, the clamping plate 17 is used for limiting the movement of the limiting rod 15, so that the limiting rod 15 is further prevented from moving upward and being separated from the mounting cylinder 14.

[0037] The working principle of the utility model is as follows: when assembling the protective fence, one end of the fixed distance beam 4 is hinged to the supporting lug 2 through the hinge seat 3, and the other end of the fixed distance beam 4 is hinged to the supporting lug 2 through another set of hinge seats 3, another base 1 is installed in cooperation, so that the distance between two bases 1 can be quickly determined through the fixed distance beam 4, and the two bases 3 are connected as a whole, then the guardrail assembly 9 is installed between the two columns 5;

[0038] When the guardrail assembly 9 is installed, the two guardrails 91 are pulled outward to expand the guardrail assembly 9, when the guardrail assembly 9 is expanded, the two sleeves 92 on the same guardrail 91 slide towards each other, when the sleeve 92 cannot continue to slide, the guardrail assembly 9 is expanded at this time, after expansion, four mounting heads 8 at four corners of the guardrail assembly 9 are respectively inserted into the mounting groove 6 from front to back, and are specifically inserted onto the inserting rod 7, the quick positioning and installation of the guardrail assembly 9 are realized, so that the efficiency of installing the protective fence on the highway bridge is improved.

[0039] Finally, rotating the cover plate 10 to cover the mounting groove 6 can drive the clamping block 11 to be inserted into the through hole connected by the mounting head 8 and the insertion rod 7, thereby further limiting the mounting head 8, avoiding the mounting head 8 from being separated from the mounting groove 6, ensuring the stability of the installation of the guardrail assembly 9, and by moving the limiting rod 15 downward to be inserted into the limiting cylinder 12, when the limiting rod 15 is inserted into the limiting cylinder 12, the rotation of the cover plate 10 can be limited, ensuring that the cover plate 10 is always located in front of the mounting head 8, avoiding the mounting head 8 from being separated from the mounting groove 6 forwardly, thereby ensuring the stability of the installation of the guardrail assembly 9.

[0040] Finally, it should be explained that the above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application, and any non-substantial changes and replacements made by the person skilled in the art on the basis of the present application shall belong to the scope of protection required by the present application.

Claims

1. A guard rail for highway bridges, characterized in that: The utility model provides a kind of two base (1) including at least two, the top of each base (1) is fixedly connected with stand (5), and the opposite side of two base (1) is fixedly connected with lug (2) respectively, two lug (2) are hingedly connected with hinged seat (3) respectively, and the bottom of two hinged seat (3) is commonly connected with distance beam (4) for determining the interval between two base (1).

2. The guardrail for a highway bridge according to claim 1, characterized by: The front surface of the stand (5) is provided with at least two mounting grooves (6) along its height direction, each mounting groove (6) is fixedly connected with a plug rod (7), and the end face of the plug rod (7) is arranged outwardly from the mounting groove (6); Each plug rod (7) is respectively inserted with a mounting head (8), and a plurality of mounting heads (8) are commonly connected with a guardrail assembly (9).

3. The guardrail for a highway bridge according to claim 2, characterized in that: The guardrail assembly (9) includes at least two rails (91), and two rails (91) are respectively connected horizontally between two mounting heads (8), each rail (91) is at least spaced apart and slidably sleeved with two sleeves (92), and two sleeves (92) having a distance difference in vertical and horizontal directions are respectively cross-hingedly connected with a connecting rod (93) between them, and two connecting rods (93) are hingedly connected with a support rod (94) between them.

4. The highway bridge guardrail according to claim 3, wherein: A cylinder (95) is fixedly sleeved between two sleeves (92) on the same rail (91), and the outer diameter of the cylinder (95) is greater than the inner diameter of the sleeve (92).

5. The highway bridge guardrail of claim 2, wherein: A cover plate (10) is hingedly connected at the mounting groove (6), the cover plate (10) is located in front of the mounting head (8) and in surface contact with the mounting head (8), and a clamping block (11) is fixedly arranged on the side of the cover plate (10) facing the mounting head (8).

6. The highway bridge guardrail according to claim 5, wherein: A limiting cylinder (12) is vertically fixedly arranged on the surface of the cover plate (10) facing outward, an installation plate (13) is fixedly arranged on the outer surface of the stand (5), an installation cylinder (14) is fixedly arranged on the installation plate (13), a limiting rod (15) is inserted into the installation cylinder (14), and when the limiting rod (15) is inserted downward into the limiting cylinder (12), the rotation of the cover plate (10) can be limited.

7. The highway bridge guardrail according to claim 6, characterized in that: A limiting ring (16) is fixedly arranged on the outer side of the limiting rod (15), the limiting ring (16) is located below the installation cylinder (14), and the outer diameter of the limiting ring (16) is greater than the inner diameter of the installation cylinder (14).

8. The highway bridge guardrail of claim 6, wherein: A clamping plate (17) is fixedly arranged on the surface of the installation plate (13) facing outward, and the clamping plate (17) is used to limit the movement of the limiting rod (15).

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