A climbing handrail with folding function and a ladder including the same

Abstract

The utility model relates to the technical field of ladder stand, especially to a high-climbing handrail with folding function and a ladder stand comprising the handrail. The ladder stand comprises a handrail and oppositely arranged support mechanisms, the handrail is located between the opposite support mechanisms and its two ends are arranged on the corresponding support mechanisms respectively, the support mechanism comprises a first support plate, a limiting plate and an arc-shaped groove, the first support plate is fixed on the installation side wall, the limiting plate is fixed on the first support plate, the arc-shaped groove is opened on the first support plate, the height of the connecting place of the limiting plate and the first support plate is located between the highest point and the lowest point of the arc-shaped groove, and the end of the handrail extends into the arc-shaped groove and can slide in the arc-shaped groove. Each handrail on the ladder stand can be folded, can be quickly unfolded during use, can be folded in the non-use state, and space is released for the equipment to pass through.

Description

Technical Field

[0001] This utility model relates to the field of ladder technology, and in particular to a folding handrail for climbing ladders and a ladder including the handrail. Background Technology

[0002] Ladders are used to move personnel up and down during production operations or maintenance. However, in some narrow spaces (such as vertical maintenance shafts, where personnel need to use fixed ladders inside the shaft to enter the underground area and inspect the equipment), the fixed ladders inside the maintenance shaft may interfere with the position of the equipment that needs to be hoisted into the shaft, preventing the equipment from entering. Summary of the Invention

[0003] To address the issue of fixed ladders interfering with the movement of equipment in confined spaces, this invention proposes a foldable handrail and a ladder including the handrail. Each handrail on the ladder can be folded, allowing for quick unfolding during use and folding away when not in use to free up space for equipment to pass through.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A folding handrail is mounted on a side wall and includes a handrail and opposing support mechanisms. The handrail is positioned between the opposing support mechanisms, with its two ends respectively mounted on the corresponding support mechanisms. Each support mechanism includes a first support plate, a limiting plate, and an arc-shaped groove. The first support plate is fixed to the side wall, and the limiting plate is fixed to the first support plate to limit the handrail's position. The arc-shaped groove is formed on the first support plate, and the height of the connection between the limiting plate and the first support plate is between the highest and lowest points of the arc-shaped groove. The end of the handrail extends into the arc-shaped groove and can slide within it. When unfolded, the end of the handrail extending into the arc-shaped groove is at the highest point of the groove, and the lower side of the handrail contacts the upper side of the limiting plate. When folded, the end of the handrail extending into the arc-shaped groove is at the lowest point of the groove, and the upper side of the handrail contacts the side wall.

[0005] Preferably, the limiting plate is fixed between opposing support mechanisms and is horizontal. This ensures the handrail is more stable on the limiting plate, thereby achieving safety during manual climbing.

[0006] Preferably, the highest point of the arc-shaped groove is located on the side of the limiting plate near the mounting sidewall, and the lowest point is located on the lower side of the limiting plate.

[0007] Preferably, the arc-shaped groove extends through the first support plate and connects both sides of the first support plate.

[0008] Preferably, the handrail includes a first segment, a second segment, and a third segment. The first segment and the second segment are symmetrically arranged at both ends of the third segment. The first segment extends into an arc-shaped groove. One end of the second segment is fixedly connected to the first segment, and the other end is fixedly connected to the third segment. The limiting plate is used to limit the second segment.

[0009] Preferably, the support mechanism further includes a second support plate, which is fixed to the lower side of the limiting plate and fixedly connected to the mounting side wall.

[0010] Preferably, both the first support plate and the second support plate include a fixing part, which is fixedly connected to the mounting side wall.

[0011] Preferably, the fixing part is fixedly connected to the mounting side wall by bolts.

[0012] The beneficial effects of this utility model through the above technical solution are as follows: 1. When the handrail of this utility model is unfolded, the end of it extending into the arc-shaped groove is located at the highest point of the arc-shaped groove, and the lower side of the handrail contacts the upper side of the limiting plate. At this time, it can be raised and lowered by the staff. When the handrail is folded, the end of it extending into the arc-shaped groove is located at the lowest point of the arc-shaped groove, and the upper side of the handrail contacts the mounting side wall. This can save space to the maximum extent and avoid obstructing the passage of the main equipment in the space.

[0013] 2. When the limiting plate of this utility model is horizontal, the lower side of the handrail will also be close to the horizontal state when it contacts the upper side of the limiting plate, thus ensuring the safety of people when they hold on or step on it.

[0014] 3. The support mechanism of this utility model also includes a second support plate fixed on the installation side wall, which improves the stability of the support mechanism on the installation side wall and ensures the safety of personnel when using the handrail. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a ladder according to the present invention; Figure 2 This is a structural schematic diagram of a climbing handrail with folding function according to the present invention; Figure 3 This is a schematic diagram of the support mechanism for a climbing handrail with folding function according to the present invention.

[0016] In the attached diagram, the numbers represent: 1 for handrail, 11 for first pole segment, 12 for second pole segment, 13 for third pole segment, and 100 for mounting sidewall. 2 is the support mechanism, 21 is the first support plate, 22 is the limiting plate, 23 is the arc groove, 24 is the second support plate, and 241 is the fixing part. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-3 As shown, this embodiment provides a ladder including multiple climbing handrails arranged in at least two columns, with the two columns facing each other. Each column of handrails is evenly fixed to the installation sidewall 100 of the inspection well. In this embodiment, the climbing handrails are arranged in two columns, as shown... Figure 1 As shown.

[0018] This embodiment also provides a folding climbing handrail, which is fixedly installed on the side wall 100 of the inspection well, for reference. Figure 2 It includes a handrail 1 and a support mechanism 2 arranged opposite to it.

[0019] The handrail 1 is located between two opposing support mechanisms 2, with its two ends respectively mounted on the corresponding support mechanisms 2. Each support mechanism 2 includes a first support plate 21, a limiting plate 22, and an arc-shaped groove 23. The first support plate 21 is fixed to the mounting side wall 100 and includes a fixing part 241 (e.g., ...). Figure 3 The fixing part 241 is fixedly connected to the mounting side wall 100 by bolts.

[0020] The limiting plate 22 is fixed on the first support plate 21 and is used to limit the handrail 1. The limiting plate 22 is fixed on the side of the two first support plates 21 that are close to each other. When the handrail 1 is unfolded, its lower side contacts the upper side of the limiting plate 22. In this embodiment, the limiting plate 22 is fixed between the opposite support mechanisms 2 and is horizontal, so that when the lower side of the handrail 1 contacts the upper side of the limiting plate 22, it will also be close to a horizontal state. refer to Figure 3 The arc-shaped groove 23 is formed on the first support plate 21. The height of the connection between the limiting plate 22 and the first support plate 21 is between the highest and lowest points of the arc-shaped groove 23. The highest point of the arc-shaped groove 23 is located on the side of the limiting plate 22 near the mounting side wall 100, and the lowest point is located on the lower side of the limiting plate 22. The arc-shaped groove 23 penetrates the first support plate 21 and connects both sides of the first support plate 21. The end of the handrail 1 extends into the arc-shaped groove 23 and can slide within the arc-shaped groove 23. In another embodiment, after the end of the handrail 1 extends out of the arc-shaped groove 23, a limiting ring can be fixedly fitted to prevent the end of the handrail 1 from coming out of the arc-shaped groove 23.

[0021] To increase the stability of the support mechanism 2, the support mechanism 2 also includes a second support plate 24, which is fixed to the lower side of the limiting plate 22 and fixedly connected to the mounting side wall 100. The second support plate 24 also includes a fixing part 241, which is fixedly connected to the mounting side wall 100 by bolts.

[0022] refer to Figure 2 The handrail 1 includes a first segment 11, a second segment 12, and a third segment 13. Two first segments 11 and two second segments 12 are symmetrically arranged at both ends of the third segment 13. In this embodiment, the handrail 1 is U-shaped. The first segments 11 extend into the arc-shaped groove 23. One end of the second segment 12 is fixedly connected to the first segment 11, and the other end is fixedly connected to the third segment 13. The limiting plate 22 is used to limit the second segment 12. When the handrail 1 is unfolded, the lower side of the second segment 12 contacts the upper side of the limiting plate 22, and the first segment 11 is located at the highest point in the arc-shaped groove 23 (e.g., ...). Figure 2 When the handrail 1 is folded, the upper side of the second rod segment 12 contacts the mounting side wall 100, and the first rod segment 11 is located at the lowest point in the arc groove 23, ensuring that the handrail 1 can be tilted and pressed against the mounting side wall 100.

[0023] In order to allow the equipment to enter the bottom of the maintenance well without interfering with the handrail 1, when using this ladder, the personnel hold the two handrails 1 with both hands and step on the two handrails 1 with both feet. When descending, release one hand from the handrail 1 and step on the other handrail with the other foot. At the same time as releasing the handrail 1, fold it up. Continue in this manner until the personnel have completely descended to the bottom of the well and all handrails 1 have been folded up, thus leaving more space for the equipment to pass through.

[0024] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A climbing handrail with a folding function, disposed on the mounting side wall (100), characterized in that, The device includes a handrail (1) and a support mechanism (2) arranged opposite to each other. The handrail (1) is located between the opposite support mechanisms (2) and its two ends are respectively set on the corresponding support mechanisms (2). The support mechanism (2) includes a first support plate (21), a limiting plate (22) and an arc groove (23). The first support plate (21) is fixed on the mounting side wall (100). The limiting plate (22) is fixed on the first support plate (21) and is used to limit the handrail (1). The arc groove (23) is opened on the first support plate (21). The height of the connection between the limiting plate (22) and the first support plate (21) is between the highest point and the lowest point of the arc groove (23). The end of the handrail (1) extends into the arc groove (23) and can slide in the arc groove (23).

2. A climbing handrail with a folding function according to claim 1, characterized in that, The limiting plate (22) is fixed between the opposing support mechanisms (2) and is horizontal.

3. A climbing handrail with folding function according to claim 1, characterized in that, The highest point of the arc groove (23) is located on the side of the limiting plate (22) near the mounting side wall (100), and the lowest point is located on the lower side of the limiting plate (22).

4. A climbing handrail with a folding function according to claim 1, characterized in that, The arc-shaped groove (23) penetrates through the first support plate (21) and connects both sides of the first support plate (21).

5. A climbing handrail with a folding function according to any one of claims 1-4, characterized in that, The handrail (1) includes a first segment (11), a second segment (12) and a third segment (13). The first segment (11) and the second segment (12) are symmetrically arranged at both ends of the third segment (13). The first segment (11) extends into the arc-shaped groove (23). One end of the second segment (12) is fixedly connected to the first segment (11) and the other end is fixedly connected to the third segment (13). The limiting plate (22) is used to limit the second segment (12).

6. A climbing handrail with a folding function according to any one of claims 1-4, characterized in that, The support mechanism (2) also includes a second support plate (24), which is fixed to the lower side of the limiting plate (22) and fixedly connected to the mounting side wall (100).

7. A climbing handrail with a folding function according to claim 6, characterized in that, Both the first support plate (21) and the second support plate (24) include a fixing part (241), which is fixedly connected to the mounting side wall (100).

8. A climbing handrail with a folding function according to claim 7, characterized in that, The fixing part (241) is fixedly connected to the mounting side wall (100) by bolts.

9. A ladder, characterized in that, The invention includes a plurality of climbing handrails as described in any one of claims 1-8, wherein the plurality of climbing handrails are arranged in at least two columns, the two columns of climbing handrails are arranged opposite to each other, and each column of climbing handrails is uniformly fixed on the mounting side wall (100).

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