Anti-collision protection device for roads and bridges
By introducing a protective structure consisting of through-core steel cables, limiting nodes, and diagonal braces into the bridge railings, the problem of intercepting vehicles when they run off the railings has been solved, achieving both improved safety and cost control.
Patent Information
- Application Number
- CN202423136985.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing road and bridge collision protection devices can easily cause serious injuries or fatalities when vehicles run off the road, and traditional guardrails may cut upon impact, and their construction costs are high.
The protective structure includes a through-core steel cable, limiting nodes, and diagonal bars. The guardrail is formed by crossbars and an outer shell. The limiting cables and diagonal bars disperse the impact force, enhancing the interception effect. The impact force is also dissipated by the deformation of the limiting nodes and diagonal bars.
Effectively prevent vehicles from running off the bridge, reduce accident losses, improve safety, reduce the risk of vehicles cutting through the bridge, and control construction costs.
Smart Images
Figure CN223577001U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bridge building technical field especially relates to a crashproof device for road bridge. BACKGROUND
[0002] Road bridge, generally by roadbed, pavement, bridge, traffic engineering facilities etc. several big parts are composed of, are used in crossing obstacle shortening road mileage, improve traffic efficiency and build, along with our country infrastructure development, the road and bridge of each big city gradually increase, especially various overpasses, viaducts, even the road of combination bridge construction such as loop ramp.
[0003] In the prior art, the crashproof device for road bridge mostly follows the protective measures on the highway, but once the vehicle on the bridge runs out of the road, it is easy to cause casualties, and the demand for protection is higher, and the construction cost is also considered to ensure that it can be widely applied on the road bridge, and therefore, the crashproof device for road bridge is proposed to solve the above problems. UTILITY MODEL CONTENT
[0004] The utility model discloses a crashproof device for road bridge to solve the problems in the prior art.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] A crashproof device for road bridge, comprising a pre-buried part, a connecting sleeve is arranged on the pre-buried part, and a protective structure is arranged on the connecting sleeve;
[0007] The protective structure comprises an inner sleeve shell fixedly connected with the pre-buried part, an outer sleeve shell is detachably connected to the inner sleeve shell, a hook is further fixedly connected to the pre-buried part, a limiting lasso is detachably connected to the hook, a horizontal frame is fixedly connected to the upper end of the outer sleeve shell, a through steel cable is arranged in the horizontal frame, a plurality of limiting nodes are arranged on the through steel cable, the through steel cable passes through the limiting lasso, and a stop lever is further fixedly connected to the outer sleeve shell.
[0008] Preferably, the limiting lasso comprises a frame body, threaded holes are formed at both ends of the frame body, and extension rods are threadedly connected in the threaded holes, a hook is fixedly connected to the extension rod close to the hook, and a limiting ring is fixedly connected to the extension rod close to the through steel cable.
[0009] Preferably, a plurality of inclined rods are further fixedly connected to the horizontal frame, a snap ring is further fixedly connected to the through steel cable, and the through steel cable passes through the inclined rods and penetrates through the snap ring.
[0010] Preferably, the limiting node is made of metal, and the limiting node is welded and connected with the through steel cable, and the outer diameter of the limiting node is larger than the inner diameter of the limiting ring.
[0011] Preferably, the through steel cable is arranged against the inner wall of the upper end of the inclined rod.
[0012] Preferably, the horizontal frame, the stop rod and the inclined rod are all hollow profiles provided with reinforcing ribs.
[0013] Compared with the prior art, the utility model has the beneficial effects that:
[0014] The utility model discloses a kind of anti-collision protection devices for road bridge, including horizontal frame, outer shell, through steel cable and limiting node, limiting ring and inclined rod are arranged in horizontal frame and outer shell, and limiting node is connected with through steel cable, and limiting ring is connected with limiting node.
[0015] The utility model discloses a kind of anti-collision protection devices for road bridge, including horizontal frame, outer shell, through steel cable and limiting node, limiting ring and inclined rod are arranged in horizontal frame and outer shell, and limiting node is connected with through steel cable, and limiting ring is connected with limiting node. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 A structure schematic view of the anti-collision protection device for road bridge is provided for the utility model;
[0017] Figure 2 A structure schematic view of the anti-collision protection device for road bridge is provided for the utility model;
[0018] Figure 3 A structure schematic view of the anti-collision protection device for road bridge is provided for the utility model;
[0019] Figure 4 A structure schematic view of the anti-collision protection device for road bridge is provided for the utility model; Figure 2 Enlarged structure schematic view of A in the middle.
[0020] In the figure: 1, embedded part;2, connecting sleeve;3, inner sleeve;4, outer sleeve;5, hook;6, horizontal frame;7, through steel cable;8, limiting node;9, stop rod;10, frame;11, extension rod;12, limiting ring;13, inclined rod;14, snap ring. DETAILED DESCRIPTION
[0021] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments.
[0022] With reference to Figures 1-4 The utility model provides a kind of anti-collision protection device for road bridge, including embedded part 1, connecting sleeve 2 is provided on the embedded part 1, and connecting sleeve 2 is provided with protective structure;
[0023] The protective structure includes the inner sleeve shell 3 fixedly connected with the embedded part 1, the outer sleeve shell 4 is detachably connected on the inner sleeve shell 3, the hook 5 is further fixedly connected on the embedded part 1, the limiting lasso is detachably connected on the hook 5, the upper end of the outer sleeve shell 4 is fixedly connected with the crosspiece 6, the crosspiece 6 is provided with the through steel cable 7, a plurality of limiting nodes 8 are provided on the through steel cable 7, the through steel cable 7 is provided through the limiting lasso, the stop lever 9 is further fixedly connected on the outer sleeve shell 4, and the stop lever 9 is arranged below the crosspiece 6.
[0024] Among them, embedded part 1 is metal plate and is laid in bridge during bridge construction, and the inner sleeve shell 3 is integrated with the embedded part 1, and the outer sleeve shell 4 is installed by being sleeved on the inner sleeve shell 3 in subsequent construction.
[0025] The protective structure with the design is compared with the traditional guardrail, and only the through steel cable 7 and the limiting lasso are added, the limiting lasso is fixedly connected with the embedded part 1, the through steel cable 7 can cooperate with the limiting node 8, when the guardrail formed by the outer sleeve shell 4 and the crosspiece 6 is impacted, the through steel cable 7 in the crosspiece 6 can block the vehicle from rushing out of the bridge, and the steel cable is supported and pulled by a plurality of limiting lassos, so that the blocking effect is ensured, and the through steel cable 7 built in the crosspiece 6 will not cause serious cutting phenomenon to the vehicle, reduces the accident loss, and improves the safety of road bridge.
[0026] Further, the limiting lasso includes the frame body 10, threaded holes are formed in both ends of the frame body 10, and the threaded holes are threadedly connected with the extension rods 11, the extension rods 11 close to the hook 5 are fixedly connected with the hooks, and the extension rods 11 close to the through steel cable 7 are fixedly connected with the limiting rings 12.
[0027] In the design, the frame body 10 cooperates with the threaded extension rods 11, so that the overall length of the limiting lasso can be adjusted more easily, and the through steel bar can be pulled tightly, the extension rods 11 at both ends of the frame body 10 are connected with the embedded part 1 and the through steel cable 7 respectively through the hooks, and in order to facilitate the layout, the limiting rings 12 are fixed with the limiting nodes 8 on the through steel cable 7.
[0028] It needs to be explained that in the actual construction process, the limiting node 8 and the limiting ring 12 are alternately sleeved on the through steel bar, and the limiting node 8 is fixed and the extending rod 11 and the frame body 10 are connected with the limiting ring 12 during the installation process.
[0029] Further, the plurality of inclined rods 13 are fixedly connected to the cross frame 6, and the snap ring 14 is fixedly connected to the through steel cable 7, and the through steel cable 7 passes through the inclined rod 13 and penetrates through the snap ring 14.
[0030] The inclined rod 13 can increase the physical strength of the guardrail and improve the impact resistance on the one hand, and on the other hand, when the through steel cable 7 needs to pass through the inclined rod 13, after the guardrail is impacted, the steel cable can be pulled by the limiting lasso under stress, and when the through steel cable 7 is stretched, the inclined rod 13 needs to be deformed to be straightened, and the inclined rod 13 is also deformed under impact, further increasing the resistance of the through steel cable 7 to be straightened, dispersing and consuming the impact force, and improving the blocking effect of the anti-collision protection device.
[0031] Further, the limiting node 8 is made of metal, and the limiting node 8 is welded and connected with the through steel cable 7, and the outer diameter of the limiting node 8 is greater than the inner diameter of the limiting ring 12.
[0032] This design is mainly used to improve the strength of the limiting node 8 and the fixing effect with the through node, and also facilitates the assembly operation in the construction process.
[0033] Further, the through steel cable 7 is arranged in abutment with the inner wall of the upper end of the inclined rod 13.
[0034] Further, the cross frame 6, the stop rod 9 and the inclined rod 13 are all hollow profiles provided with reinforcing ribs, and the reinforcing ribs are used to improve the physical strength of the cross frame 6, the stop rod 9 and the inclined rod 13, and the hollow profile is beneficial to cost control and avoids waste of resources.
[0035] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A crash protection device for road bridges comprising a pre-embedded part (1), characterized in that, The embedded part (1) is provided with a connecting sleeve (2), and the connecting sleeve (2) is provided with a protective structure; The protective structure includes an inner shell (3) fixedly connected to the embedded part (1), an outer shell (4) detachably connected to the inner shell (3), a hook (5) fixedly connected to the embedded part (1), a limiting cable detachably connected to the hook (5), a cross frame (6) fixedly connected to the upper end of the outer shell (4), a through steel cable (7) is provided inside the cross frame (6), a plurality of limiting nodes (8) are provided on the through steel cable (7), the through steel cable (7) passes through the limiting cable, a stop bar (9) is fixedly connected to the outer shell (4), and the stop bar (9) is located below the cross frame (6).
2. A crash protection device for roads and bridges according to claim 1, characterized in that, The limiting sling includes a frame (10), both ends of which are provided with threaded holes, and an extension rod (11) is threadedly connected in the threaded holes. The extension rod (11) near the hook (5) is fixedly connected with a hook, and the extension rod (11) near the through steel cable (7) is fixedly connected with a limiting ring (12).
3. A crash protection device for roads and bridges according to claim 1, characterized in that, Multiple diagonal bars (13) are fixedly connected to the crossbar (6), and a retaining ring (14) is fixedly connected to the through-core steel cable (7). The through-core steel cable (7) passes through the diagonal bars (13) and through the retaining ring (14).
4. A crash protection device for roads and bridges according to claim 2, characterized in that, The limiting node (8) is made of metal and is welded to the through steel cable (7). The outer diameter of the limiting node (8) is larger than the inner diameter of the limiting ring (12).
5. A crash protection device for roads and bridges according to claim 3, characterized in that, The through-core steel cable (7) is abutted against the upper inner wall of the diagonal bar (13).
6. A crash protection device for roads and bridges according to claim 2, characterized in that, The crossbar (6), the stop bar (9), and the diagonal bar (13) are all hollow profiles with reinforcing ribs.