Cross-bridge walking safety passage

Abstract

This utility model belongs to the field of safety passage technology and discloses a pedestrian safety passage for bridge crossings, including a support frame and a safety passage component for covering the support frame. The safety passage component has through slots on the left and right sides and a square slot on the rear side. A light-shielding component is embedded at the top of the safety passage component. A folding ladder rotates inside the safety passage component. The first and second steps have two states: when the first and second steps are in a vertical state, the folding ladder is in a folded state; when the first and second steps are in a parallel state, the folding ladder is parallel to the safety passage component. Through the above solution, the problems of adding two sets of fixed ladders at the entrance and exit, requiring simultaneous movement on both sides when movement is needed, resulting in inconvenience, and the need for passages to withstand high humidity and strong corrosion environments during the construction of bridges across rivers, where passages built with ordinary steel are prone to rust and reduced structural stability, are solved.

Description

Technical Field

[0001] This utility model relates to the field of safety passage technology, specifically a pedestrian safety passage across a bridge. Background Technology

[0002] During the construction phase of bridge engineering, pedestrian walkways across bridges are key facilities to ensure the safe travel of construction workers to and from the work site. However, existing temporary walkways generally suffer from poor adaptability and insufficient safety: traditional walkways are mostly erected using simple scaffolding, requiring the addition of folding ladders on both sides of the walkway for auxiliary ascent, which increases the space occupied. Moreover, they are often left outdoors for a long time, which makes them prone to corrosion and reduces the service life of the folding ladders.

[0003] However, during the implementation of the relevant technologies, it was discovered that the existing pedestrian walkways require the addition of two sets of fixed ladders at the entrances and exits. In the construction of bridges spanning rivers, the walkways need to withstand high humidity and strong corrosion environments. Walkways built with ordinary steel are prone to rust, leading to a decrease in structural stability. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a pedestrian safety passage across a bridge, which replaces ordinary stairs with folding stairs, adds a safety passage to the surface of the steel railing, and adds a retractable folding stairs inside the safety passage. When in use, the stairs are unfolded for construction workers to walk on, and when not in use, they can be folded and stored inside the safety passage. This has the advantages of preventing external erosion of the folding stairs surface while reducing the space occupied.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pedestrian safety passage across a bridge, including a support frame and a safety passage assembly for covering the support frame. The safety passage assembly has through slots on the left and right sides and a square slot on the rear side. A light-shielding assembly is fitted into the top of the safety passage assembly, and a folding ladder is rotatably mounted inside the safety passage assembly. The folding ladder includes a reinforcing rib, the bottom end of which is rotatably connected to a pivot. The pivot rotates within the inner cavity of the safety passage assembly. A cylinder is fixedly connected to the surface of the reinforcing rib, and a rotating arm is fixedly connected to the output end of the cylinder. A rotating arm is rotatably connected to the other end of the rotating arm, and a rotating arm is rotatably connected to the other end of the rotating arm. Steps one and two are rotatably connected to the surface of the rotating arm three. Steps one and two are in two states: when steps one and two are perpendicular, the folding ladder is in a folded state; when steps one and two are parallel, the folding ladder is parallel to the safety passage assembly.

[0006] Preferably, the first step ladder and the second step ladder are located on both sides close to the bottom of the reinforcing rib and the support frame.

[0007] Preferably, the first and second steps rotate synchronously inside the reinforcing rib, the folding ladder includes a handrail, and the handrail is disposed on the surface of the reinforcing rib and the two are rotatably connected, and the handrail of the folding ladder slides in the left and right directions of the safety passage assembly.

[0008] Preferably, the shading component includes a support frame, the surface of which has a square groove, a motor is fixedly connected to the surface of the support frame, and a belt is rotatably connected to the output end of the motor. Photovoltaic panel one and photovoltaic panel two are respectively sleeved on the surface of the belt, and photovoltaic panel one and photovoltaic panel two are respectively located in the square groove of the support frame.

[0009] Preferably, one end of the photovoltaic panel one and the photovoltaic panel two are rotatably connected to a crossbar, and the bottom end of the crossbar is fixedly connected to the top of the support frame.

[0010] Preferably, the other end of photovoltaic panel one and photovoltaic panel two is fixedly connected to the connecting block, and the connecting block slides on the surface of the crossbar to support photovoltaic panel one and photovoltaic panel two.

[0011] Preferably, when the photovoltaic panel one and photovoltaic panel two are parallel to the surface of the support frame, the photovoltaic panel one and photovoltaic panel two are used to cover the safety passage components; when the photovoltaic panel one and photovoltaic panel two are in a folded state, the photovoltaic panel one and photovoltaic panel two are in a folded state.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model adds a folding ladder to control the lifting and lowering of the stairs. After the construction workers finish construction from the left side, they can rotate the folding ladder inside the safety passage component. During the rotation, the direction of rotation of the folding ladder is controlled. Only one set of folding ladders is needed to enter the safety passage component by crossing the guardrail steel bars. In addition, casters are added to the bottom of the folding ladder, which can move the folding ladder on the surface of the guardrail steel bars, improving the convenience of construction.

[0013] 2. This utility model adds an extendable photovoltaic device. When there is sunlight, the photovoltaic panel unfolds to absorb solar radiation and convert it into electrical energy. It can also be used to block external sunlight from the safety passage components. Furthermore, the electrical energy converted by photovoltaics can be used to power the heating wires inside the folding ladder. In cold winters, it can melt the heating wires attached to the folding ladder, thereby improving safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the pedal of this utility model when it is unfolded; Figure 3This is a schematic diagram of the folded pedal structure of this utility model; Figure 4 This is a schematic diagram of the unfolded structure of the photovoltaic panel of this utility model; Figure 5 This is a schematic diagram of the structure of the light-shielding component of this utility model on the surface of the safety passage component; Figure 6 This is a schematic diagram of the structure of the folding ladder of this utility model rotating on the surface of the pivot.

[0015] In the diagram: 1. H-shaped frame; 2. Safety passage components; 3. Folding ladder; 31. Reinforcing rib; 32. Cylinder; 33. Rotating arm one; 34. Rotating arm two; 35. Rotating arm three; 36. Step one; 37. Step two; 38. Rotating shaft; 4. Shading component; 41. Support frame; 42. Motor; 43. Crossbar; 44. Photovoltaic panel one; 45. Photovoltaic panel two; 46. Connecting block; 47. Belt. Detailed Implementation

[0016] 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.

[0017] like Figures 1 to 5 As shown, this utility model provides a pedestrian safety passage across a bridge, including an H-shaped frame 1 and a safety passage component 2 for covering the H-shaped frame 1. The safety passage component 2 has through slots on the left and right sides and a square slot on the rear side. A light-shielding component 4 is fitted into the top of the safety passage component 2, and a folding ladder 3 is rotated inside the safety passage component 2. The folding ladder 3 includes a reinforcing rib 31, the bottom end of which is rotatably connected to a rotating shaft 38. The rotating shaft 38 rotates in the inner cavity of the safety passage assembly 2. A cylinder 32 is fixedly connected to the surface of the reinforcing rib 31. A rotating arm 33 is fixedly connected to the output end of the cylinder 32. A rotating arm 34 is rotatably connected to the other end of the rotating arm 33. A rotating arm 35 is rotatably connected to the other end of the rotating arm 34. Steps 36 and 37 are rotatably connected to the surface of the rotating arm 35. Steps 36 and 37 are in two states. When step ladder 36 and step ladder 37 are in a vertical state, the treads inside the folding ladder 3 can be used by construction workers to step on them. When step ladder 36 and step ladder 37 are in a parallel state, the folding ladder 3 is parallel to the safety passage assembly 2 and can rotate and slide out from the square groove on the surface of the safety passage assembly 2, and move to the opposite direction to unfold for construction workers to step on and walk down from the position of the safety passage assembly 2.

[0018] Specifically, step ladder 36 and step ladder 37 are located near the reinforcing rib 31 and the bottom two sides of the H-shaped frame 1, respectively. Please refer to the appendix for the rotation method. Figure 1 The dotted line indicates the position of folding ladder 3 after it has been rotated.

[0019] Furthermore, step 1 36 and step 2 37 rotate synchronously inside the folding ladder 3. The folding ladder 3 includes a handrail, which is set on the surface of the reinforcing rib 31 and the two are rotatably connected. The handrail of the folding ladder 3 slides in the left and right directions of the safety passage assembly 2.

[0020] Furthermore, the shading component 4 includes a support frame 41, the surface of which is provided with a square groove, and a motor 42 is fixedly connected to the surface of the support frame 41. The output end of the motor 42 is rotatably connected to a belt 47, and photovoltaic panel 1 44 and photovoltaic panel 2 45 are respectively sleeved on the surface of the belt 47. Photovoltaic panel 1 44 and photovoltaic panel 2 45 are respectively located in the square groove of the support frame 41.

[0021] In the extendable photovoltaic device, the photovoltaic panels unfold in the presence of sunlight to absorb solar radiation and convert it into electrical energy. They can also be used to block external sunlight from the safety passage component 2. Furthermore, the electrical energy converted from photovoltaic power can be used to power the heating wires inside the folding ladder 3. In cold winters, they can melt the ice attached to the footrests and handrails of the folding ladder 3, thus improving safety.

[0022] It is worth noting that one end of photovoltaic panel 44 and photovoltaic panel 45 is rotatably connected to a crossbar 43, and the bottom end of the crossbar 43 is fixedly connected to the top of the support frame 41.

[0023] It is worth noting that the other ends of photovoltaic panel 44 and photovoltaic panel 45 are fixedly connected to connecting block 46, and connecting block 46 slides on the surface of crossbar 43 to provide support for photovoltaic panel 44 and photovoltaic panel 45.

[0024] It is worth mentioning that when photovoltaic panel 44 and photovoltaic panel 45 are parallel to the surface of the support frame 41, photovoltaic panel 44 and photovoltaic panel 45 are used to keep the safety passage assembly 2 in a horizontal state. When photovoltaic panel 44 and photovoltaic panel 45 are in a folded state, photovoltaic panel 44 and photovoltaic panel 45 are in a folded state.

[0025] The H-frame 1 and safety passage assembly 2 are existing technologies and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switches, which are not the main technical points of this patent and will not be described in detail. The "front, rear, left, and right" views of this device are... Figure 1 The direction shown in the diagram is the reference.

[0026] Working principle: After the folding ladder 3 is folded into its folded state, it is pushed into the interior of the safety passage assembly 2. The safety passage assembly 2 is suspended on the surface of the H-shaped frame 1, which is supported by the reinforcing steel. The cylinder 32 is activated to control the extension and retraction of the rotating arm 33, which extends outward. During the extension, the rotating arm 34 rotates, which in turn drives the rotating arm 35 to rotate outward. The rotating arm 35 controls the extension of steps 36 and 37 outward. Steps 36 and 37 are vertical, with a height difference between them. As the extension and retraction end of the cylinder 32 slides outward, the bottom step 37 touches the ground. Construction workers walk up step 36 to the top. When they reach the interior of the safety passage assembly 2, the steps 36 and 37 are made parallel in the reverse manner, and the folding ladder 3 is raised above the safety passage assembly 2. Rotating the pivot 38 controls the reinforcing rib 31 to rotate 180° inside the safety passage assembly 2. Similarly, in the opposite way, the first step ladder 36 and the second step ladder 37 are unfolded here for laying in the opposite way, so that construction workers can walk out of the folding ladder 3 after rotating 180°. When the light is good, the photovoltaic panels 44 and 45 at the top of the safety passage assembly 2 are in the unfolded state. The specific operation steps are as follows: the motor 42 controls the belt 47 to rotate. During the rotation, the belt 47 drives the connecting blocks 46, which are connected to the photovoltaic panels 44 and 45 respectively, to slide on the surface of the crossbar 43. The other end of the crossbar 43 is used to support the photovoltaic panels 44 and 45. The photovoltaic panels 44 and 45 slide to both sides of the support frame 41 to unfold. The photovoltaic panels 44 and 45 generate electricity. After generating electricity, the heating wires filled inside the steps 36 and 37 are heated to prevent the surfaces of the steps 36 and 37 from freezing when used outdoors in winter.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pedestrian safety passage across a bridge, comprising an H-shaped frame (1) and a safety passage assembly (2) at the top of the H-shaped frame (1), characterized in that: The safety passage component (2) has through slots on the left and right sides and a square slot on the rear side. A light-shielding component (4) is fitted at the top of the safety passage component (2). A folding ladder (3) is rotated inside the safety passage component (2). The folding ladder (3) includes a reinforcing rib (31), the bottom end of which is rotatably connected to a pivot (38). The reinforcing rib (31) rotates inside the safety passage assembly (2) in cooperation with the pivot (38). The surface of the reinforcing rib (31) is provided with a step for extending and folding, including a cylinder (32). The output end of the cylinder (32) is fixedly connected to a rotating arm one (33), and the other end of the rotating arm one (33) is rotatably connected to a rotating arm two (34). The other end of the second arm (34) is rotatably connected to the third rotating arm (35). The surface of the third rotating arm (35) is rotatably connected to the first step (36) and the second step (37). The first step (36) and the second step (37) are in two states. When the first step (36) and the second step (37) are in a vertical state, the folding ladder (3) is in a folded state. When the first step (36) and the second step (37) are in a parallel state, the folding ladder (3) is in a parallel state with the safety passage assembly (2).

2. The pedestrian safety passage across a bridge according to claim 1, characterized in that: The first step ladder (36) and the second step ladder (37) are located on both sides of the bottom of the reinforcing rib (31) and the H-shaped frame (1), respectively.

3. A pedestrian safety passage across a bridge according to claim 2, characterized in that: The folding ladder (3) includes a handrail, which is disposed on the surface of the reinforcing rib (31) and the two are rotatably connected. The handrail of the folding ladder (3) slides in the left and right directions of the safety passage assembly (2).

4. A pedestrian safety passage across a bridge according to claim 1, characterized in that: The shading component (4) includes a support frame (41), the surface of which is provided with a square groove, and a motor (42) is fixedly connected to the surface of the support frame (41). The output end of the motor (42) is rotatably connected to a belt (47), and a photovoltaic panel (44) and a photovoltaic panel (45) are respectively fitted on the surface of the belt (47). The photovoltaic panel (44) and the photovoltaic panel (45) are respectively located in the square groove of the support frame (41).

5. A pedestrian safety passage across a bridge according to claim 4, characterized in that: One end of the photovoltaic panel one (44) and the photovoltaic panel two (45) is rotatably connected to a crossbar (43), and the bottom end of the crossbar (43) is fixedly connected to the top end of the support frame (41).

6. A pedestrian safety passage across a bridge according to claim 5, characterized in that: The other ends of the photovoltaic panel one (44) and photovoltaic panel two (45) are fixedly connected to the connecting block (46), and the connecting block (46) slides on the surface of the crossbar (43) to support the photovoltaic panel one (44) and photovoltaic panel two (45).

7. A pedestrian safety passage across a bridge according to claim 6, characterized in that: When the photovoltaic panel one (44) and photovoltaic panel two (45) are parallel to the surface of the support frame (41), the photovoltaic panel one (44) and photovoltaic panel two (45) are used to cover the safety passage assembly (2). When the photovoltaic panel one (44) and photovoltaic panel two (45) are in a folded state, the photovoltaic panel one (44) and photovoltaic panel two (45) are in a folded state.

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