Protective fence for highway bridge
By designing a detachable and connected highway bridge guardrail and setting up a rubber roller on the pole, the problem of existing guardrails being unable to effectively intercept and cushion, achieving better interception and cushioning effects, and reducing transportation and maintenance costs.
Patent Information
- Application Number
- CN202421670568.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The existing highway bridge guardrails cannot effectively intercept and buffer when the driver loses control, causing accidents to rush out of the bridge or elevated road surface. The traditional integrated structure has inconvenience and waste in transportation and maintenance.
A protective railing for highway bridges is designed, including positioning rods, cross rods and vertical rods. The vertical rods are equipped with a roller. The rollers are composed of inner rings and outer rings. The outer rings are made of rubber materials. The cross rods and positioning rods, vertical rods and horizontal rods can be detachably connected to facilitate installation and maintenance.
Through the design of the roller, when the vehicle hits, the rotation of the roller drives the vehicle to move along the guardrail, playing a good buffering and guiding role, improving the interception and buffering effect; the detachable connection design is easy to install and maintain, and reducing transportation and maintenance costs.
Smart Images
Figure CN223003279U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of guardrails, in particular to a guardrail for highway bridges. Background Art
[0002] The safety guardrail for highway bridges can prevent vehicles from driving out of the road or prevent out-of-control vehicles from crossing the central isolation belt and driving into the oncoming lane. Especially at night, in heavy rain, fog, snow on the road and other conditions, it can guide the driver to correctly grasp the direction. However, when the driver loses control of the vehicle and drives out of the road surface, the existing guardrails for highway bridges do not have the function of intercepting and buffering, resulting in the vehicle rushing out of the bridge or elevated road surface and causing serious accidents.
[0003] Moreover, the traditional guardrails for highway bridge construction are usually of an integral structure. Due to their large volume and heavy weight during transportation, the transportation work is time-consuming and laborious. And because of the integral structure, when one part is damaged, the whole guardrail needs to be replaced, which is very wasteful. For this reason, we propose a new guardrail structure for highway bridges. Summary of the Utility Model
[0004] In order to solve the above technical problems, the utility model provides a guardrail for highway bridges.
[0005] The utility model provides the following technical solutions. A guardrail for highway bridges includes a guardrail main body. The guardrail main body is composed of two positioning rods and cross bars between the two positioning rods. A base for fixedly connecting with the ground is arranged at the lower end of the positioning rod. There are two cross bars, and both cross bars are detachably connected with the positioning rods. A plurality of vertical rods are arranged between the two cross bars. The upper end of the vertical rod is detachably connected with the upper cross bar, and the lower end of the vertical rod is detachably connected with the lower cross bar. At least two rollers are arranged at intervals on the vertical rod. The roller is rotatably connected with the vertical rod. The roller includes an inner ring and an outer ring, and the outer ring is made of rubber material.
[0006] For the guardrail for highway bridges in an embodiment of the utility model, by arranging rollers on the vertical rod, when the driver loses control of the vehicle and hits the guardrail, the vehicle body collides with the rollers at a certain oblique angle, which can drive the rollers to rotate, thereby guiding the vehicle body to move along the guardrail, avoiding the vehicle from rushing out of the highway or into the oncoming road surface, and being able to play a good buffering and guiding role. Coupled with the rubber material of the outer ring, it can further improve the intercepting and buffering effect of the guardrail on the vehicle; by making the cross bars detachably connected with the positioning rods and the vertical rods detachably connected with the cross bars, it is convenient for the installation and transportation of the guardrail. Moreover, when damage occurs, only the damaged part needs to be replaced, effectively reducing the maintenance cost.
[0007] Further, a ring groove corresponding to the roller is provided on the vertical rod. The depth of the ring groove is the same as the thickness of the inner ring. A lubricating layer is provided between the inner wall of the inner ring and the inner bottom surface of the ring groove.
[0008] Further, upper convex columns and lower convex columns are respectively provided at the upper and lower ends of the vertical rod. A plurality of positioning holes adapted to the upper convex columns are provided on the upper cross bar, and a plurality of positioning grooves adapted to the lower convex columns are provided on the lower cross bar. The upper convex columns penetrate through the positioning holes and are fixedly connected to the cross bar by setting locking nuts. The lower convex columns are embedded in the positioning grooves and are threadedly connected to the positioning grooves.
[0009] Further, a receiving groove and a sealing plate are provided on the upper cross bar. The locking nuts are all located in the receiving groove. The sealing plate is adapted to the receiving groove. The cross section of the sealing plate is an inverted "U" shape. The sealing plate is used to cover the locking nuts in the receiving groove, and the upper end surface and the side end surface of the sealing plate are flush with the cross bar.
[0010] Further, the receiving groove is a structure with openings on the front, rear, and upper three sides. A convex platform is provided on the inner bottom surface of the receiving groove. The locking nut abuts against the upper end surface of the convex platform, and the front and rear side walls of the sealing plate are magnetically connected to the front and rear side walls of the convex platform respectively.
[0011] Further, left insertion posts and right insertion posts are respectively provided at both ends of the cross bar. Insertion holes adapted to the left insertion posts and the right insertion posts are provided on the positioning rod. Limit bolts penetrating through the side wall of the positioning rod and respectively embedded in the left insertion posts and the right insertion posts are provided on the front side wall of the positioning rod.
[0012] Further, a limit groove is provided on the front side wall of the positioning rod. The bolt head of the limit bolt is located in the limit groove, and a cover adapted to the limit groove is provided on the front side wall of the positioning rod.
[0013] Further, a slot is provided on the side of the left insertion post away from the cross bar, and a plug adapted to the slot is provided on the side of the right insertion post away from the cross bar. When adjacent cross bars and the positioning rod are connected, the plug on the left cross bar is embedded in the slot of the right cross bar. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0015] Figure 1 Structural schematic diagram of the guardrail for highway bridges of the present utility model;
[0016] Figure 2 Structural schematic diagram of the cooperation between the cross bar and the vertical pole in the guardrail for highway bridges of the present utility model;
[0017] Figure 3 Structural schematic diagram of the vertical pole in the guardrail for highway bridges of the present utility model;
[0018] Figure 4 Top view schematic diagram of the roller in the guardrail for highway bridges of the present utility model;
[0019] Figure 5 Top view schematic diagram of the upper cross bar in the guardrail for highway bridges of the present utility model;
[0020] Figure 6 Top view schematic diagram of the lower cross bar in the guardrail for highway bridges of the present utility model;
[0021] Figure 7 Front view structural schematic diagram of the positioning rod in the guardrail for highway bridges of the present utility model;
[0022] Figure 8 Internal structural schematic diagram of the connection between adjacent cross bars and the positioning rod in the guardrail for highway bridges of the present utility model.
[0023] Explanation of reference numerals:
[0024] 1, guardrail main body; 10, positioning rod; 11, base; 111, positioning screw hole; 12, jack; 13, limit bolt; 14, limit groove; 15, cover; 20, cross bar; 21, positioning hole; 22, positioning groove; 23, locking nut; 24, receiving groove; 25, sealing plate; 26, convex platform; 27, left insertion post; 271, slot; 28, right insertion post; 281, plug; 30, vertical pole; 31, roller; 311, inner ring; 312, outer ring; 32, ring groove; 33, upper convex post; 34, lower convex post. Detailed implementation manners
[0025] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the embodiments of the present utility model, and should not be construed as a limitation to the present utility model.
[0026] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.
[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.
[0028] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0029] Referring to Figures 1 to 8 , in an embodiment of the present utility model, a guardrail for a highway bridge includes a guardrail main body 1. The guardrail main body 1 is composed of two positioning rods 10 and a cross bar 20 between the two positioning rods 10. A base 11 for fixedly connecting to the ground is provided at the lower end of the positioning rod 10. There are two cross bars 20, and both cross bars 20 are detachably connected to the positioning rod 10. A plurality of vertical rods 30 are provided between the two cross bars 20. The upper end of the vertical rod 30 is detachably connected to the upper cross bar 20, and the lower end of the vertical rod 30 is detachably connected to the lower cross bar 20. At least two rollers 31 are spaced on the vertical rod 30. The roller 31 is rotatably connected to the vertical rod 30. The roller 31 includes an inner ring 311 and an outer ring 312, and the outer ring 312 is made of rubber material.
[0030] The guardrail for highway bridges according to an embodiment of the present utility model is provided with rollers 31 on the vertical poles 30. When a driver loses control of the vehicle and hits the guardrail, the vehicle body collides with the rollers 31 at a certain oblique angle, which can drive the rollers 31 to rotate, thereby guiding the vehicle body to move along the guardrail, avoiding the vehicle from rushing out of the road or hitting the oncoming road surface, and can play a good buffering and guiding role. Coupled with the rubber material of the outer ring 312, it can further improve the interception and buffering effect of the guardrail on the vehicle; by making the cross bar 20 detachably connected to the positioning bar 10 and the vertical pole 30 detachably connected to the cross bar 20, it is convenient for the installation and handling of the guardrail, and when it is damaged, only the damaged part needs to be replaced, effectively reducing the maintenance cost.
[0031] A ring groove 32 corresponding to the roller 31 is provided on the vertical pole 30. The groove depth of the ring groove 32 is the same as the thickness of the inner ring 311. A lubricating layer is provided between the inner wall of the inner ring 311 and the inner bottom surface of the ring groove 32; the ring groove 32 can hold the inner ring 311, so that the roller 31 can rotate stably with the vertical pole 30, and the lubricating layer can ensure the smooth rotation of the roller 31 and the vertical pole 30; in this embodiment, the inner ring 311 and the vertical pole 30 are made of the same material, and the lubricating layer is lubricating oil; in this embodiment, two rollers 31 are provided on a single vertical pole 30. Providing multiple rollers 31 can avoid the situation where a single roller 31 fails due to excessive friction with the vertical pole 30.
[0032] Upper convex columns 33 and lower convex columns 34 are respectively provided at the upper and lower ends of the vertical pole 30. A plurality of positioning holes 21 adapted to the upper convex columns 33 are provided on the upper cross bar 20, and a plurality of positioning grooves 22 adapted to the lower convex columns 34 are provided on the lower cross bar 20. The upper convex column 33 passes through the positioning hole 21 and is fixedly connected to the cross bar 20 by setting a locking nut 23. The lower convex column 34 is embedded in the positioning groove 22 and is threadedly connected to the positioning groove 22; during specific installation, first install the lower cross bar 20 on the two positioning bars 10, then align the lower convex column 34 with the positioning groove 22, rotate the vertical pole 30 so that the lower convex column 34 is embedded in the positioning groove 22, thereby preliminarily fixing the vertical pole 30, and then install the upper cross bar 20 on the two positioning bars 10, and make the upper convex column 33 pass through the positioning hole 21, and then use the locking nut 23 to fix the vertical pole 30 to complete the installation of the vertical pole 30; both ends of the vertical pole 30 are detachably connected to the cross bar 20, which is convenient for the replacement of a single vertical pole 30, and the connection structure between both ends of the vertical pole 30 and the cross bar 20 can also ensure the stability of the connection between the vertical pole 30 and the cross bar 20; in this embodiment, six vertical poles 30 are evenly provided between the upper and lower cross bars 20.
[0033] On the upper cross bar 20, there are accommodation grooves 24 and sealing plates 25. The locking nuts 23 are all located within the accommodation grooves 24. The sealing plates 25 are adapted to the accommodation grooves 24. The cross-section of the sealing plate 25 is an inverted "U" shape. The sealing plate 25 is used to cover the locking nuts 23 within the accommodation grooves 24, and the upper end face and the side end faces of the sealing plate 25 are flush with the cross bar 20. The accommodation groove 24 is a structure with openings on the front, rear, and upper sides. On the inner bottom surface of the accommodation groove 24, there is a boss 26. The locking nut 23 abuts against the upper end face of the boss 26. The front and rear side walls of the sealing plate 25 are magnetically connected to the front and rear side walls of the boss 26 respectively. The sealing plate 25 can cover the accommodation groove 24, can alleviate the rusting of the locking nuts 23, ensure the stability of the connection between the vertical pole 30 and the upper cross bar 20, and improve the service life of the guardrail. By providing the boss 26, the sealing plate 25 can tightly seal the accommodation groove 24. Coupled with magnetic connection (not shown), it can improve the stability of the connection between the sealing plate 25 and the cross bar 20. In this embodiment, there are gaps between the front and rear side walls of the boss 26 and the front and rear edges of the accommodation groove 24, and the gaps are adapted to the thickness of the side wall of the sealing plate 25. The locking nut 23 is located within the accommodation groove 24, and the distance from its upper end to the upper end of the accommodation groove 24 is adapted to the thickness of the top wall of the sealing plate 25, so as to ensure that the upper end face and the side end faces of the sealing plate 25 are flush with the cross bar 20, which is convenient for the daily maintenance of the guardrail and is more beautiful.
[0034] At both ends of the cross bar 20, there are respectively a left insertion post 27 and a right insertion post 28. On the positioning rod 10, there are insertion holes 12 adapted to the left insertion post 27 and the right insertion post 28. On the front side wall of the positioning rod 10, there are limit bolts 13 that penetrate the side wall of the positioning rod 10 and are respectively embedded in the left insertion post 27 and the right insertion post 28. By providing the left insertion post 27 and the right insertion post 28, inserting them into the insertion holes 12 on the positioning rod 10, and then using the limit bolts 13 for limitation, the two ends of the cross bar 20 are fixedly connected to the positioning rod 10, which is convenient for disassembly and assembly. In this embodiment, there are two limit bolts 13 at the upper end of the front side wall of the positioning rod 10 and also two limit bolts 13 at the lower end.
[0035] On the front side wall of the positioning rod 10, there is a limit groove 14. The bolt head of the limit bolt 13 is located within the limit groove 14. On the front side wall of the positioning rod 10, there is a cover 15 adapted to the limit groove 14. By providing the limit groove 14 and then using the cover 15 to seal the limit groove 14, the limit bolts 13 can be effectively protected from rusting due to rainwater, which can ensure the stable connection between the cross bar 20 and the positioning rod 10 and improve the service life of the guardrail. In this embodiment, there are two limit grooves 14 on the upper side wall of the positioning rod 10, and correspondingly, there are also two covers 15.
[0036] On one side of the left insertion post 27 away from the cross bar 20, there is a slot 271. On one side of the right insertion post 28 away from the cross bar 20, there is a plug 281 adapted to the slot 271. When the adjacent cross bar 20 is connected to the positioning rod 10, the plug 281 on the left cross bar 20 is embedded in the slot 271 of the right cross bar 20. When the adjacent cross bar 20 is connected to the same positioning rod 10, the right insertion post 28 on the left cross bar 20 is embedded in the jack 12 of the positioning rod 10, and the left insertion post 27 on the right cross bar 20 is also embedded in the jack 12 of the positioning rod 10. At the same time, the plug 281 on the left cross bar 20 is embedded in the slot 271 on the right cross bar 20, so that the adjacent cross bars 20 are inserted into each other, making multiple guardrails a whole, and having better mechanical strength and stability. In this embodiment, the length of the jack 12 (i.e., the left and right width of the positioning rod 10) is the same as the length after the left insertion post 27 and the right insertion post 28 are cooperatively connected. In this embodiment, positioning screw holes 111 are provided at the four corners of the base 11 for setting bolts to fixedly connect the positioning rod 10 to the ground.
[0037] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A guardrail for a highway bridge, characterized in that: The utility model comprises a guardrail body, which is composed of two positioning rods and a cross rod between the two positioning rods. The lower end of the positioning rod is provided with a base for being fixedly connected to the ground. Two cross rods are provided, and both cross rods are detachably connected to the positioning rods. A plurality of vertical rods are provided between the two cross rods. The upper end of the vertical rod is detachably connected to the cross rod on the upper side, and the lower end of the vertical rod is detachably connected to the cross rod on the lower side. At least two rollers are arranged on the vertical rods at intervals, and the rollers are rotatably connected to the vertical rods. The rollers comprise an inner ring and an outer ring, and the outer ring is made of rubber material.
2. The highway bridge guardrail according to claim 1, characterized in that: The vertical rod is provided with an annular groove corresponding to the roller, the depth of the annular groove is consistent with the thickness of the inner ring, and a lubricating layer is provided between the inner wall of the inner ring and the inner bottom surface of the annular groove.
3. The highway bridge guardrail according to claim 1, characterized in that: An upper boss and a lower boss are respectively provided at the upper and lower ends of the vertical pole, the upper cross bar is provided with a plurality of positioning holes adapted to the upper bosses, and the lower cross bar is provided with a plurality of positioning grooves adapted to the lower bosses, the upper boss passes through the positioning holes and is fixedly connected to the cross bar by setting a locking nut, and the lower boss is embedded in the positioning groove and is threadedly connected to the positioning groove.
4. The highway bridge guardrail according to claim 3, characterized in that: The upper cross bar is provided with a receiving groove and a sealing plate, the locking nuts are located in the receiving groove, the sealing plate is adapted to the receiving groove, the cross section of the sealing plate is an inverted "U" shape, the sealing plate is used to cover the locking nut in the receiving groove, and the upper end face and the side end face of the sealing plate are flush with the cross bar.
5. The highway bridge guardrail according to claim 4, characterized in that: The accommodating groove is a structure with openings on the front, rear and top sides. A boss is provided on the inner bottom surface of the accommodating groove. The locking nut abuts against the upper end surface of the boss. The front and rear side walls of the sealing plate are magnetically connected to the front and rear side walls of the boss respectively.
6. The highway bridge guardrail according to claim 1, characterized in that: The two ends of the cross bar are respectively provided with a left plug column and a right plug column, the positioning rod is provided with a socket adapted to the left plug column and the right plug column, and the front side wall of the positioning rod is provided with a limit bolt that penetrates the side wall of the positioning rod and is respectively embedded in the left plug column and the right plug column.
7. The highway bridge guardrail according to claim 6, characterized in that: A limiting groove is arranged on the front side wall of the positioning rod, the bolt head of the limiting bolt is located in the limiting groove, and a sealing cover adapted to the limiting groove is arranged on the front side wall of the positioning rod.
8. The highway bridge guardrail according to claim 6, characterized in that: A slot is provided on the side of the left plug away from the cross bar, and a plug adapted to the slot is provided on the side of the right plug away from the cross bar. When the adjacent cross bars are connected to the positioning rod, the plug on the left cross bar is embedded in the slot of the right cross bar.