Improved guardrail and improved bridge

Abstract

The utility model discloses an improved guardrail and an improved bridge, and relates to the technical field of bridge protection equipment, the improved guardrail comprises a bottom existing guardrail and a heightened guardrail, the upper end of the heightened guardrail inclines inwards and is bent inwards in an arc shape, the heightened guardrail comprises a protection unit and a connection unit, the bottom of the protection unit is fixedly arranged on the bottom existing guardrail, and the connection unit is connected with the protection unit. The tops of the protection units extend upwards and are arranged in a bent mode, every two adjacent protection units in the longitudinal direction are fixedly connected through a connecting unit, each protection unit comprises a vertical frame connecting base, a protection vertical frame, a protection steel wire and an anti-climbing rod, and the anti-climbing rod is sleeved with a first rotating ring which is rotatably arranged on the anti-climbing rod. According to the improved guardrail, climbing obstacles are improved, and the technical problem that the physical isolation protection grade is low due to the fact that an existing guardrail of an existing bridge is small in climbing difficulty is solved.

Description

Technical Field

[0001] This utility model relates to the field of bridge protection equipment technology, and in particular, to an improved guardrail and an improved bridge. Background Technology

[0002] Bridges play a vital role in transportation systems, and their safety is crucial for protecting people's lives and property. Currently, existing bridge railings typically consist of piers spaced longitudinally and grid railing units between piers. These grid railing units are composed of horizontal and vertical bars and handrails. However, in recent years, with societal development, bridge safety issues have become increasingly prominent, particularly the rising number of fatalities caused by bridge jumps, especially on urban viaducts and cross-river bridges. Existing bridge railings are clearly insufficient in protecting against such safety hazards; their physical isolation is inadequate to meet practical needs and fails to effectively prevent people from climbing over, leading to frequent accidents. Therefore, proposing an improved railing design to upgrade existing bridge railings and enhance their physical isolation and protection level has become an urgent priority. Utility Model Content

[0003] The improved guardrail provided by this utility model solves the technical problem that the existing bridge guardrails are easy to climb, resulting in a low level of physical isolation and protection.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An improved guardrail includes an existing bottom guardrail and a raised guardrail. The upper end of the raised guardrail is inclined inward and curved inward in an arc. The raised guardrail includes a protective unit and a connecting unit. The bottom of the protective unit is fixed to the existing bottom guardrail, and the top of the protective unit extends upward and is curved. Two adjacent protective units along the longitudinal direction are fixedly connected by the connecting unit. The protective unit includes a support frame connecting seat, a protective frame, a protective steel wire, and an anti-climb rod. The bottom of the support frame connecting seat is fixed to the upper end of the existing bottom guardrail, and the top of the support frame connecting seat is provided with a protective frame. The protective frame extends upward and is curved inward in an arc. The protective steel wire is arranged longitudinally and tensioned between two protective frames. Multiple protective steel wires are arranged at intervals along the height direction. The distance between two adjacent protective steel wires gradually increases along the upward height direction. The anti-climb rod is arranged longitudinally between two protective frames and above the protective steel wire. A first rotating ring is sleeved on the anti-climb rod, and the first rotating ring is rotatably mounted on the anti-climb rod.

[0006] Furthermore, mounting holes are arranged on the top side of the protective frame, and anti-climb rods are inserted between the two protected frames.

[0007] Furthermore, the connecting unit includes multiple hollow connecting tubes arranged at intervals along the height direction, and the hollow connecting tubes are fixedly arranged between two adjacent protective units along the longitudinal direction.

[0008] Furthermore, multiple hollow connecting pipes are arranged at uniform intervals along the height direction.

[0009] Furthermore, a second rotating ring is fitted onto the uppermost hollow connecting pipe body, and the second rotating ring is rotatably arranged.

[0010] Furthermore, the second rotating ring is arranged flush with the first rotating ring in the height direction.

[0011] Furthermore, the protective uprights and the upright connecting seats are arranged in a one-to-one correspondence. The upright connecting seat includes a U-shaped bracket and a tie rod. The open end of the U-shaped bracket is inserted into the top of the existing guardrail at the bottom and tightened and fixed by the tie rod. The back of the closed end of the U-shaped bracket is provided with a protective upright.

[0012] Furthermore, the protective frame and the frame connecting seat are integrally molded.

[0013] Furthermore, the height of the guardrail is increased to 0.8 to 2 meters.

[0014] This utility model also provides an improved bridge, including an existing bridge deck and the aforementioned improved guardrail, wherein the existing bridge deck is provided with bottom guardrails on both sides in the transverse direction.

[0015] This utility model has the following beneficial effects:

[0016] This utility model discloses an improved guardrail, comprising an existing bottom guardrail and a raised guardrail. The raised guardrail is located above the existing bottom guardrail and extends upwards. The raised guardrail includes protective units and connecting units. The protective units are fixed to the existing bottom guardrail at their bottoms. Two adjacent protective units are fixedly connected longitudinally via the connecting units, facilitating construction operations during guardrail modification. The protective unit includes a support frame connector, a protective upright, protective steel wire, and an anti-climbing rod. The bottom of the support frame connector is fixed to the upper end of the existing bottom guardrail, and the top of the support frame connector is equipped with a protective upright. The protective upright extends upwards in an arc-shaped inward curve. The protective steel wire is arranged longitudinally and tensioned between two protective uprights. Multiple protective steel wires are arranged at intervals along the height direction, with the distance between two adjacent protective steel wires gradually increasing along the upward direction. Anti-climb rods are arranged longitudinally between two protective uprights and above the protective steel wires. A first rotating ring is fitted on the anti-climb rod, which is rotatably mounted on the anti-climb rod. The inward curving arrangement of the upper end of the heightened guardrail enhances the climbing obstacle. The first rotating ring on the anti-climb rod, which is a stress-relief point at the top of the heightened guardrail, further enhances the climbing obstacle. The arrangement of the protective steel wires with a low density at the top and a high density at the bottom further increases the climbing difficulty, solving the technical problem of low physical isolation protection level caused by the low climbing difficulty of existing bridge guardrails.

[0017] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 This is one of the structural schematic diagrams of an improved guardrail in one embodiment of this utility model;

[0020] Figure 2 This is the second structural schematic diagram of the improved guardrail in one embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of an improved heightened guardrail according to one embodiment of the present invention.

[0022] Legend:

[0023] 100. Improved guardrail; 10. Existing guardrail at the bottom; 20. Heightened guardrail; 21. Protective unit;

[0024] 211. Frame connecting seat; 212. Tie rod; 213. Protective frame; 214. Protective steel wire; 215. Anti-climb rod; 216. First rotating ring; 22. Connecting unit; 221. Hollow connecting pipe body; 222. Second rotating ring. Detailed Implementation

[0025] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0029] like Figure 1 , Figure 2 and Figure 3As shown, the present invention provides an improved guardrail 100, including an existing bottom guardrail 10 and a raised guardrail 20. The upper end of the raised guardrail 20 is arranged in an inwardly curved arc. The raised guardrail 20 includes a protective unit 21 and a connecting unit 22. The bottom of the protective unit 21 is fixedly mounted on the existing bottom guardrail 10, and the top of the protective unit 21 extends upward and is curved. Two adjacent protective units 21 along the longitudinal direction are fixedly connected by the connecting unit 22. The connecting unit 22 includes a plurality of hollow connecting tubes arranged at intervals along the height direction. The hollow connecting tube includes a central hollow connecting tube and end connecting tubes arranged oppositely at both ends of the central hollow connecting tube. The external threads at both ends of the end connecting tube are arranged in opposite directions. Threaded holes are arranged on the longitudinal sidewall of the protective unit 21. The end of the end connecting tube near the protective unit 21 is threadedly connected to the threaded hole, and the end of the end connecting tube near the central hollow connecting tube is threadedly connected to the central hollow tube.

[0030] The improved guardrail 100 provided by this utility model includes an existing bottom guardrail 10 and a raised guardrail 20. The raised guardrail 20 is disposed on the existing bottom guardrail 10 and extends upward. The raised guardrail 20 includes a protective unit 21 and a connecting unit 22. The protective unit 21 is fixedly disposed on the existing bottom guardrail 10. The connecting unit 22 includes a plurality of hollow connecting tubes arranged along the height direction. The hollow connecting tubes include a central hollow connecting tube and end connecting tubes disposed at opposite ends of the central hollow connecting tube in the longitudinal direction. The external threads at both ends of the end connecting tubes are arranged in opposite directions. The longitudinal sidewall of the protective unit 21 is provided with... The end of the end connecting pipe near the protective unit 21 is threadedly connected to the threaded hole, and the end of the end connecting pipe near the central hollow connecting pipe is threadedly connected to the central hollow pipe. When modifying the guardrail, it is only necessary to install the protective unit 21 and the grid fence unit accordingly, and arrange the end connecting pipe on the adjacent protective unit 21 and fix the end connecting pipe through the central hollow connecting pipe, thus realizing the heightening of the guardrail. At the same time, since the upper end of the heightened guardrail 20 is inclined inward in an arc shape, it further improves the climbing obstacle and solves the technical problem that the existing bridge guardrails have low climbing difficulty and thus low physical isolation protection level.

[0031] Understandably, the improved guardrail 100 adds a heightened guardrail 20 to the existing guardrail. The heightened guardrail 20 can be directly installed on top of the existing guardrail 10 at the bottom. The upper end of the heightened guardrail 20 is arranged in an inward-curving arc, which not only effectively increases the overall height of the guardrail and enhances the visual and psychological barrier effect, but also creates a physical climbing obstacle with its overall structure designed as an inward-curving arc. The protective steel wire 214 is stretched longitudinally between the two protective uprights 213, and is arranged in multiple layers with the spacing increasing with the height, forming a unique protective net that is dense at the bottom and sparse at the top, making it difficult for climbers to find stable support. The anti-climb pole 215 is inserted between the two protective uprights 213 and above the protective steel wire 214, and a rotatable first rotating ring 216 is fitted on it. The first rotating ring 216 is rotatably set at the top of the heightened guardrail 20, making it difficult for climbers to find a support point. This design reduces the possibility of climbers using leverage, further improves the level of physical isolation and protection, and prevents people from climbing over.

[0032] Understandably, the protective frame 213 extends upward and bends inward in an arc shape.

[0033] Furthermore, mounting holes are arranged on the top side of the protective frame 213, and the anti-climb rod 215 is inserted between two protected frames 213. Specifically, mounting holes are arranged on the top side of the protective frame 213, through which the anti-climb rod 215 is securely inserted between adjacent protective frames 213, achieving a tight connection between the two. This improved design aims to enhance the stability and convenience of installing the anti-climb rod 215, ensuring that it can maintain a reliable connection when subjected to external impact, and enhancing the overall stability and durability of the guardrail.

[0034] Furthermore, the connecting unit 22 includes a plurality of hollow connecting tubes 221 arranged at intervals along the height direction, and the hollow connecting tubes 221 are fixedly arranged between two adjacent protective units 21 along the longitudinal direction.

[0035] Furthermore, multiple hollow connecting pipes 221 are evenly spaced along the height direction. In one specific embodiment of this utility model, the distance between two adjacent hollow connecting pipes 221 is 25-45 cm. This ensures that each adjacent protective unit 21 is evenly stressed and stably connected at different height levels, thereby improving the stress balance and structural stability of the entire heightened guardrail 20, avoiding structural deformation or damage caused by uneven local stress, and extending the service life of the guardrail. At the same time, the evenly arranged hollow connecting pipes 221 act as sturdy fulcrums, providing uniform and stable support for the entire guardrail system, enabling it to better resist external impacts from all directions and ensuring bridge safety.

[0036] Furthermore, a second rotating ring 222 is fitted onto the uppermost hollow connecting pipe, and the second rotating ring 222 is rotatably arranged. With the first rotating ring 216 and the second rotating ring 222 covering the longitudinal direction of the bridge, a more robust top protective barrier is constructed, creating climbing obstacles for climbers, weakening their climbing momentum, and thus significantly improving the anti-climbing performance of the entire heightened guardrail 20.

[0037] Furthermore, the second rotating ring 222 and the first rotating ring 216 are arranged flush with each other in the height direction. This invention cleverly optimizes the relative positional relationship between the second rotating ring 222 and the first rotating ring 216 in the height direction, placing them in a flush arrangement. This layout aims to achieve precise spatial coordination and functional complementarity between the two, further enhancing the anti-climbing effectiveness of the entire top area of ​​the heightened guardrail 20 and constructing a more robust and continuous top protection system. When a climber attempts to cross the top of the guardrail, the flush arrangement of the first rotating ring 216 and the second rotating ring 222 creates a double interference, disrupting their climbing rhythm and increasing the difficulty of climbing, thereby effectively preventing climbing and ensuring bridge safety.

[0038] Furthermore, the protective bracket 213 and the bracket connecting seat 211 are arranged in a one-to-one correspondence. The bracket connecting seat 211 includes a U-shaped bracket and a tie rod 212. The open end of the U-shaped bracket is inserted into the top of the existing guardrail 10 at the bottom and tightened and fixed by the tie rod 212. The protective bracket 213 is provided on the back of the closed end of the U-shaped bracket. Understandably, the tie rod 212 passes through the opening of the U-shaped bracket from the bottom of the top handrail and is fixedly connected by threads to ensure the stability of the entire bracket connecting seat 211; while the protective bracket 213 is firmly installed on the back of the closed end of the U-shaped bracket. The design of the U-shaped bracket and the tie rod 212 has good versatility and can be adapted to various types of existing guardrails.

[0039] Furthermore, the protective frame 213 and the frame connecting seat 211 are integrally molded. This integral molding process enhances the structural strength and reliability of the entire component. Simultaneously, the integral molding process allows for a seamless connection between the protective frame 213 and the frame connecting seat 211.

[0040] Furthermore, the height of the guardrail 20 is increased to 0.8 to 2 meters. The minimum height of 0.8 meters can effectively prevent pedestrians from crossing at will and prevent accidental falls from the bridge.

[0041] This utility model proposes an improved bridge, including an existing bridge deck and the aforementioned improved guardrail 100. The existing bridge deck has bottom guardrails 10 on both sides in the transverse direction. Specifically, the existing bridge deck has bottom guardrails 10 pre-installed on both sides in the transverse direction, and the improved guardrail 100 is cleverly added on top of these, achieving a comprehensive upgrade and optimization of the bridge's protective performance.

[0042] Understandably, in this utility model, the first rotating ring 216 and the second rotating ring 222 are densely arranged along the longitudinal direction, thereby realizing that the first rotating ring 216 and the second rotating ring 222 are arranged along the entire longitudinal direction of the bridge.

[0043] Understandably, the inward-sloping, heightened guardrail 20 of this utility model has an overall openness rate of over 85%, significantly altering the aerodynamic shape of the structure and solving the problem of the impact of traditional heightened protective structures on the aerodynamic performance of bridges. In this utility model, the anti-climbing rod can be either steel wire or steel pole.

[0044] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An improved guardrail, comprising an existing guardrail at the bottom, characterized in that, It also includes heightened guardrails, the upper end of which slopes inward and curves inward in an arc. Each heightened guardrail includes a protective unit and a connecting unit. The bottom of the protective unit is fixed to the existing bottom guardrail, and the top of the protective unit extends upward and curves. Two adjacent protective units along the longitudinal direction are fixedly connected by the connecting unit. The protective unit includes a support frame connector, a protective frame, protective steel wires, and an anti-climbing rod. The bottom of the support frame connector is fixed to the upper end of the existing guardrail at the bottom. The protective frame is arranged on the top of the support frame connector, extending upwards in an arc shape and bending inwards. The protective steel wires are arranged longitudinally and tensioned between two protective frames. Multiple protective steel wires are arranged at intervals along the height direction, and the distance between two adjacent protective steel wires gradually increases along the upward height direction. The anti-climb rod is arranged longitudinally between the two protective uprights and above the protective steel wire. A first rotating ring is sleeved on the anti-climb rod, and the first rotating ring is rotatably mounted on the anti-climb rod.

2. The improved guardrail according to claim 1, characterized in that, The top side of the protective frame is provided with mounting holes, and the anti-climb rod is inserted between the two protected frames.

3. The improved guardrail according to claim 1, characterized in that, The connecting unit includes a plurality of hollow connecting tubes arranged at intervals along the height direction, and the hollow connecting tubes are fixedly arranged between two adjacent protective units along the longitudinal direction.

4. The improved guardrail according to claim 3, characterized in that, The hollow connecting pipes are arranged at uniform intervals along the height direction.

5. The improved guardrail according to claim 3, characterized in that, A second rotating ring is fitted onto the uppermost hollow connecting pipe body, and the second rotating ring is rotatably arranged.

6. The improved guardrail according to claim 5, characterized in that, The second rotating ring is arranged flush with the first rotating ring in the height direction.

7. The improved guardrail according to claim 1, characterized in that, The protective uprights and the upright connecting seats are arranged in a one-to-one correspondence. Each upright connecting seat includes a U-shaped bracket and a tie rod. The open end of the U-shaped bracket is inserted into the top of the existing guardrail at the bottom and tightened and fixed by the tie rod. The protective stand is provided on the back of the closed end of the U-shaped card holder.

8. The improved guardrail according to claim 7, characterized in that, The protective frame and the frame connecting seat are integrally formed.

9. The improved guardrail according to any one of claims 1 to 8, characterized in that, The height of the raised guardrail is 0.8 to 2 meters.

10. An improved bridge, characterized in that, It includes an existing bridge deck and an improved guardrail as described in any one of claims 1 to 8, wherein the existing bridge deck is provided with bottom guardrails on both sides in the transverse direction.

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