Anti-falling bridge guardrail

Abstract

The utility model discloses an anti-falling bridge guardrail, which relates to the technical field of guardrails and comprises a supporting strip and a plurality of vertical rods fixed on the upper portion of the supporting strip and used for vertical supporting, cross rods are welded at the upper ends of the vertical rods, connecting rods used for mutual connection are welded on the plurality of vertical rods, a supporting rod is fixed on the lateral side of the supporting strip, and the supporting rod is fixed on the lateral side of the supporting strip. Diagonal draw bars used for cable-stayed drawing are welded between the vertical rods and the supporting rods, an anti-falling net is arranged between every two adjacent supporting rods, pulley mechanisms used for traction are arranged at the four corners of each anti-falling net, and the upper portions of the pulley mechanisms are installed on the supporting rods. The anti-falling nets are arranged between every two adjacent supporting rods, so that the bridge guardrail performs anti-falling safety protection through the anti-falling nets, meanwhile, the pulley mechanisms arranged at the four corners of each anti-falling net are installed on the corresponding supporting rods, buffering is conveniently performed through traction of the pulley mechanisms when the anti-falling nets are impacted by objects, and therefore the buffering performance in the anti-falling process is improved; and the safety of the bridge guardrail is improved.

Description

Technical Field

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

[0002] A bridge generally refers to a structure spanning rivers, lakes, or seas, allowing for smooth passage of vehicles and pedestrians. To adapt to the rapid development of modern transportation, the term "bridge" has also been extended to encompass structures constructed to facilitate passage across mountain streams, over unfavorable terrain, or to meet other transportation needs. Guardrails are typically installed on both sides of a bridge to prevent vehicles and pedestrians from falling. While traditional bridge guardrails provide a certain degree of safety, they are ineffective in preventing pedestrians, especially children, from climbing over them, making safety a significant concern.

[0003] Existing Chinese patent CN109868739A discloses "a bridge guardrail for preventing falling, comprising columns equidistantly installed on both sides of the bridge, the upper ends of multiple columns on the same side of the bridge being connected to a cross bar, and the middle parts of two adjacent columns being connected to a first connecting rod for reinforcement, arc-shaped rods corresponding to the columns being provided on both sides of the bridge, the outer side of the arc surface of the arc-shaped rod facing the inner side of the bridge, the lower end of the arc-shaped rod being connected to the lower end of the column, the upper part of the arc-shaped rod being connected to the upper end of the column, and the upper end of the arc-shaped rod extending to the outer side of the bridge". It only uses the curved arc-shaped rod to act as the guardrail body to prevent climbing. However, pedestrians walking near the guardrail on the bridge are easily injured by the guardrail. At the same time, when pedestrians cross the arc-shaped rod guardrail body, the problem of falling still occurs.

[0004] Based on this, a fall-proof bridge guardrail with an anti-fall net is designed. Summary of the Invention

[0005] In response to the deficiencies in the prior art, the utility model provides the following technical solutions: a bridge guardrail for preventing falling, comprising a support bar, and a plurality of vertical rods for vertical support fixed to the upper part of the support bar, a cross bar welded to the upper end of the vertical rod, connecting rods for mutual connection welded to the plurality of vertical rods, a supporting rod fixed to the side of the support bar, and a diagonal rod for diagonal pulling welded between the vertical rods and the supporting rods, an anti-falling net is arranged between two adjacent supporting rods, a pulley mechanism for traction is arranged at the four corners of the anti-falling net, and the upper part of the pulley mechanism is installed on the supporting rod.

[0006] As an improvement of the above technical solution, the pulley mechanism includes a hanging ear welded on the side surface of the support rod, a fixed pulley group is provided at the lower part of the hanging ear, a movable pulley group is provided below the fixed pulley group, and a steel wire rope is installed at the corner of the anti-fall net. The steel wire rope passes through the hanging ear and then bypasses the movable pulley group and the fixed pulley group. A concrete counterweight block for increasing the weight is installed on the movable pulley group housing.

[0007] As an improvement of the above technical solution, four sub-pulleys are provided in the housing of the fixed pulley group, and five sub-pulleys are provided in the housing of the movable pulley group. The wire rope passes around the sub-pulleys of the movable pulley group and the sub-pulleys of the fixed pulley group in sequence.

[0008] As an improvement of the above technical solution, the steel wire rope is provided with ten segments of sub-wires.

[0009] As an improvement to the above technical solution, the vertical rod is a "Y"-shaped structure, and two horizontal rods welded to the upper ends of the vertical rods are arranged in parallel.

[0010] Beneficial effects of the utility model:

[0011] 1. The support rod is fixed on the side of the support bar, and a diagonal pull rod for diagonal pulling is welded between the vertical rod and the support rod, thereby increasing the stability of the support rod structure set on the side of the support bar, and the anti-fall net set between two adjacent support rods enables the bridge guardrail to provide safety protection against falling through the anti-fall net. At the same time, the pulley mechanism set at the four corners of the anti-fall net is installed on the support rod, which is convenient for the anti-fall net to be pulled by the pulley mechanism for buffering when it is hit by an object, thereby improving the buffering performance during anti-fall and providing the safety of the bridge guardrail.

[0012] 2. Through the pulley mechanism composed of hanging ears, fixed pulley group, movable pulley group, wire rope and concrete counterweight block, the hanging ears are welded on the supporting rod, so that the wire rope fixed at the corner of the anti-fall net is connected through the fixed pulley group and the movable pulley group, so that the concrete counterweight block increases the traction of the anti-fall net through the pulley group. At the same time, the pulley group also extends the displacement path of the anti-fall net, which is convenient for increasing the buffering performance of the anti-fall net when preventing falls. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the utility model;

[0015] Figure 3 for Figure 2 A magnified structural diagram at center A;

[0016] Figure 4 This is a structural diagram of the pulley and wire rope of the utility model.

[0017] Figure numerals: 1, support bar; 2, vertical bar; 3, horizontal bar; 4, connecting rod; 5, supporting rod; 6, inclined rod; 7, anti-fall net; 8, pulley mechanism; 81, hanging ear; 82, fixed pulley block; 83, movable pulley block; 84, wire rope; 85, concrete counterweight block. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] See also Figure 1-4 The utility model provides a technical solution: a bridge guardrail for preventing falling, comprising a support bar 1, and several vertical rods 2 for vertical support fixed on the upper part of the support bar 1, a horizontal rod 3 welded to the upper end of the vertical rod 2, and connecting rods 4 for mutual connection welded on several vertical rods 2, a supporting rod 5 is fixed to the side of the support bar 1, and a diagonal pull rod 6 for diagonal pull is welded between the vertical rod 2 and the supporting rod 5, an anti-fall net 7 is arranged between two adjacent supporting rods 5, and a pulley mechanism 8 for traction is arranged at the four corners of the anti-fall net 7, and the upper part of the pulley mechanism 8 is installed on the supporting rod 5.

[0020] In this embodiment, the support rod 5 is fixed on the side of the support bar 1, and a diagonal pull rod 6 for diagonal pulling is welded between the vertical rod 2 and the support rod 5, thereby increasing the stability of the support rod 5 set on the side structure of the support bar 1, and the anti-fall net 7 set between two adjacent support rods 5 enables the bridge guardrail to be safely protected against falling through the anti-fall net 7. At the same time, the pulley mechanism 8 set at the four corners of the anti-fall net 7 is installed on the support rod 5, so that the anti-fall net 7 is pulled by the pulley mechanism 8 to cushion the impact of an object, thereby improving the cushioning performance during anti-fall and providing the safety of the bridge guardrail.

[0021] Specifically, the pulley mechanism 8 includes a hanging ear 81 welded on the side surface of the support rod 5, a fixed pulley group 82 is provided at the lower part of the hanging ear 81, and a movable pulley group 83 is provided below the fixed pulley group 82. A steel wire rope 84 is installed at the corner of the anti-fall net 7. The steel wire rope 84 passes through the hanging ear 81 and then bypasses the movable pulley group 83 and the fixed pulley group 82. A concrete counterweight block 85 for increasing the weight is installed on the shell of the movable pulley group 83. In this embodiment, a pulley mechanism 8 is formed by a hanging ear 81, a fixed pulley group 82, a movable pulley group 83, a steel wire rope 84 and a concrete counterweight 85, and the hanging ear 81 is welded to the support rod 5, so that the steel wire rope 84 fixed at the corner of the anti-fall net 7 is connected through the fixed pulley group 82 and the movable pulley group 83, so that the concrete counterweight 85 increases the traction of the anti-fall net 7 through the pulley group. At the same time, the pulley group also extends the path that the anti-fall net 7 can be displaced, which is convenient for increasing the cushioning of the anti-fall net 7 when preventing it from falling.

[0022] Specifically, four sub-pulleys are provided within the housing of the fixed pulley block 82, and five sub-pulleys are provided within the housing of the movable pulley block 83. The wire rope 84 is sequentially passed around the sub-pulleys of the movable pulley block 83 and the sub-pulleys of the fixed pulley block 82. In this embodiment, the five sub-pulleys provided in the movable pulley block 83 and the four sub-pulleys provided in the fixed pulley block 82 facilitate the nine sub-pulleys to cooperate with each other to guide the wire rope 84, thereby increasing the pulling force of the concrete counterweight 85 on the anti-fall net 7 and extending the displacement length of the anti-fall net 7.

[0023] Specifically, the steel wire rope 84 is provided with ten sections of strands. In this embodiment, it is convenient to extend the moving path of the anti-fall net 7 by the steel wire rope 84 of ten sections of strands.

[0024] Specifically, the vertical bar 2 is a "Y"-shaped structure, and two horizontal bars 3 are welded to the upper ends of the vertical bar 2 and are arranged in parallel. In this embodiment, the vertical bar 2 is a "Y"-shaped structure, and two horizontal bars 3 are welded to the upper ends of the vertical bar 2 and are arranged in parallel. Therefore, the two horizontal bars 3 cooperate with each other, making it more difficult for a person to directly climb over the guardrail, while also increasing the stability of the guardrail structure.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A bridge guardrail for preventing falling, comprising a support bar (1), and a plurality of vertical rods (2) fixed on the upper portion of the support bar (1) for vertical support, wherein the upper ends of the vertical rods (2) are welded with horizontal rods (3), characterized in that: Connecting rods (4) for mutual connection are welded on a plurality of vertical rods (2), a supporting rod (5) is fixed on the side of the support bar (1), and a diagonal pull rod (6) for diagonal pull is welded between the vertical rod (2) and the supporting rod (5), an anti-falling net (7) is arranged between two adjacent supporting rods (5), and a pulley mechanism (8) for traction is arranged at the four corners of the anti-falling net (7), and the upper part of the pulley mechanism (8) is installed on the supporting rod (5).

2. The anti-fall bridge guardrail according to claim 1, characterized in that: The pulley mechanism (8) comprises a hanging ear (81) welded to the side surface of the supporting rod (5); a fixed pulley block (82) is provided at the lower part of the hanging ear (81); a movable pulley block (83) is provided below the fixed pulley block (82); a steel wire rope (84) is installed at the corner of the anti-fall net (7); the steel wire rope (84) passes through the hanging ear (81) and then passes around the movable pulley block (83) and the fixed pulley block (82); a concrete counterweight block (85) for increasing weight is installed on the housing of the movable pulley block (83).

3. The anti-fall bridge guardrail according to claim 2, characterized in that: Four sub-pulleys are provided in the housing of the fixed pulley group (82), and five sub-pulleys are provided in the housing of the movable pulley group (83). The steel wire rope (84) passes through the sub-pulleys of the movable pulley group (83) and the sub-pulleys of the fixed pulley group (82) in sequence.

4. The anti-fall bridge guardrail according to claim 3, characterized in that: The steel wire rope (84) is provided with ten segments of sub-wires.

5. The anti-fall bridge guardrail according to claim 1, characterized in that: The vertical rod (2) is a "Y"-shaped structure, and two horizontal rods (3) welded to the upper ends of the vertical rod (2) are arranged in parallel.

Images