Detachable ladder step handrail capable of lying down

Abstract

The utility model provides a detachable ladder step handrail capable of lying down, which comprises prefabricated maintenance boxes pre-buried at the left end and the right end of a ladder step, fixed plates are welded and fixed in the prefabricated maintenance boxes in parallel, and a handrail upright post is detachably arranged between the fixed plates through a first bolt assembly and a second bolt assembly; marine anchor chains and flexible handrails are installed between the handrail stand columns at different heights. The problems that in the prior art, a slope fixed handrail blocks a flood discharge space, ships cannot be berthed, potential safety hazards exist, a detachable handrail is difficult to disassemble and assemble, and the carrying workload is large are solved.

Description

Technical Field

[0001] This utility model relates to the field of stair handrails and railings, specifically to a detachable and reclining stair handrail. Background Technology

[0002] River channels, reservoirs, docks, and other locations with steep banks are typically equipped with concrete steps for people to ascend and descend. To ensure safety, various types of handrails or railings are usually installed on both sides of the steps, including fixed stainless steel and cast-in-place concrete ones, with fixed handrails and railings being the most common. Because fixed handrails and railings are higher than the steps and cannot be removed, they obstruct the flow of floodwaters during the flood season, easily accumulate aquatic plants, garbage, and other floating debris, and are easily washed away by rapid currents, causing safety hazards and increased investment.

[0003] River and reservoir wharf embankment steps often require berths or vessels to moor. In such cases, fixed handrails are prone to rubbing against vessels during mooring, affecting vessel safety and failing to meet requirements. Detachable stainless steel railings, on the other hand, are often difficult to disassemble and install, requiring a large amount of transportation work, and cannot be widely used. This is especially true for large reservoirs with large water level fluctuations, steep banks, and frequent water level changes, where the use of detachable railings is even more challenging.

[0004] Patent No. CN 219823352 U discloses a safety railing assembly for escalators. By fixing and assembling prefabricated trusses and handrails with bolts, the assembly achieves the goal of convenient and quick installation, reliable strength, and strong versatility for escalator safety railings.

[0005] Patent No. CN 218506679 U discloses a foldable handrail for tank containers. Connecting and fixing blocks are installed on the left and right edges of the upper surface of the tank container. The fixing blocks are brought close to each other to drive the bearing and connect to the drive column, so as to realize the automatic lifting and lowering of the handrail, which solves the problem that operators must climb onto the tank to operate the tank container. Utility Model Content

[0006] In response to the problems mentioned in the background art, this utility model designs a detachable and reclining stair railing to solve the problems of fixed handrails on slopes obstructing flood passage, preventing ships from mooring, posing safety hazards, and the difficulty in disassembling and installing detachable handrails, as well as the large amount of transportation work involved.

[0007] To achieve the above-mentioned technical features, the purpose of this utility model is as follows: a detachable and reclining stair railing includes prefabricated maintenance boxes embedded at both ends of the stair steps. The interior of the prefabricated maintenance boxes is fixed with parallel welded plates. Railing posts are detachably installed between the fixing plates through a first bolt assembly and a second bolt assembly. Marine anchor chains and flexible handrails are installed between the railing posts at different heights.

[0008] Preferably, the bottom end of the prefabricated maintenance box is fixed with a bottom stud, which is embedded inside the step; the two outer sides of the prefabricated maintenance box are fixed with side studs, which are embedded inside the step.

[0009] Preferably, the prefabricated maintenance box is made of galvanized steel sheet, and the prefabricated maintenance box is box-shaped with no top cover, and one side is an open structure.

[0010] Preferably, the first bolt assembly and the second bolt assembly each include a bolt, which passes through the fixing plate and the railing post in sequence and is fixed by a nut.

[0011] Preferably, a rectangular groove is formed between the fixing plates, and the rectangular groove is used to cooperate with the railing post.

[0012] Preferably, the lower end of the railing post is machined with a first bolt hole and a second bolt hole, which respectively mate with a first bolt assembly and a second bolt assembly.

[0013] Preferably, the upper end of the railing post is machined with a first connecting hole and a second connecting hole, the first connecting hole being used to connect a marine anchor chain, and the second connecting hole being used to connect a flexible handrail.

[0014] Preferably, the flexible handrail is made of rope or safety rope.

[0015] Preferably, in use, the railing post can be laid down and completely disassembled by disassembling the first bolt assembly and / or the second bolt assembly.

[0016] Preferably, the number of steps between two adjacent sets of prefabricated maintenance boxes is determined according to the actual situation.

[0017] The present invention has the following beneficial effects:

[0018] 1. This utility model includes a prefabricated maintenance box, fixing plates, and railing posts. The prefabricated maintenance box is embedded in the concrete of the stair treads. Two fixing plates are welded into the maintenance box, and the railing posts are placed between the two fixing plates and connected by bolts. When the upper bolt of the fixing plate is removed, the railing post can rotate around the lower bolt, allowing the railing post to lie down on the outside of the stair treads. Repeating the above operation allows all handrails to lie down on the outside of the stair treads. Simultaneously, by disconnecting the prefabricated anchor chain and flexible handrail connection at one end, any section of the handrail can be laid down on the outside of the stair treads. Compared with existing technologies, this invention effectively solves the problems of fixed handrails obstructing flood passage, preventing ships from mooring, and posing safety hazards. Removing the bolts at both ends of the fixing plate allows the railing posts to be dismantled. Repeating the above operation allows all handrails to be dismantled. Simultaneously, by disconnecting the prefabricated anchor chain and flexible handrail connection at one end, any section of the handrail can be dismantled. Compared with existing technologies, the dismantling work is simple and quick. The finished anchor chains, flexible handrails and railing posts are all lightweight structures, and the amount of repeated dismantling and installation work is small, which can be used for large-scale applications.

[0019] 2. In this utility model, the railing posts are connected to the prefabricated inspection box and fixing plate via bolts. Existing technologies often use pre-embedded anchor bolts, which are then connected to the railing posts. These anchor bolts are submerged underwater for extended periods, making them prone to corrosion and irreplaceable, leading to unstable railing posts and safety hazards. Compared to existing technologies, this utility model allows for the complete replacement of the connecting bolts at any time, ensuring the stability of the railing posts, durability, and easy replacement. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a structural schematic diagram of a preferred embodiment of the detachable and reclining stair handrail railing suitable for slopes provided by this utility model.

[0022] Figure 2 This is a schematic diagram of the structure of this utility model.

[0023] Figure 3 This is a schematic diagram of the detailed structure of this utility model.

[0024] Figure 4 This is a schematic diagram of the railing post of this utility model.

[0025] In the diagram: 1. Bottom bolt, 2. Prefabricated inspection box, 3. Side bolt, 4. First bolt assembly, 5. Fixing plate, 6. Second bolt assembly, 7. Railing post, 8. Stair step, 9. Flexible handrail, 10. Marine anchor chain, 11. Rectangular groove, 12. First bolt hole, 13. Second bolt hole, 14. First connecting hole, 15. Detailed Implementation

[0026] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0027] like Figures 1-4 As shown, a detachable and reclining stair railing includes prefabricated maintenance boxes 2 embedded at both ends of the stair treads 8. A fixing plate 5 is welded and fixed inside the prefabricated maintenance box 2. Railing posts 7 are detachably installed between the fixing plates 5 via a first bolt assembly 4 and a second bolt assembly 6. Marine anchor chains 10 and flexible handrails 9 are installed between the railing posts 7 at different heights. By using the aforementioned detachable fixing plates 5 via the first bolt assembly 4 and the second bolt assembly 6, it is ensured that the fixing plates 5 can be folded upon removal of the first bolt assembly 4 and the second bolt assembly 6, thus enabling the removal of all handrail railing sections. Simultaneously, any section of the handrail railing can be removed by disconnecting the prefabricated anchor chain and the flexible handrail at one end.

[0028] Furthermore, a bottom stud 1 is fixed to the bottom end of the prefabricated maintenance box 2, and the bottom stud 1 is embedded inside the stair tread 8; side studs 3 are fixed to the two outer sides of the prefabricated maintenance box 2, and the side studs 3 are embedded inside the stair tread 8. The bottom studs 1 and side studs 3 ensure that the prefabricated maintenance box 2 can be reliably fixed inside the stair tread 8.

[0029] Furthermore, the prefabricated maintenance box 2 is made of galvanized steel sheet. The prefabricated maintenance box 2 is box-shaped with no top cover, and one side is open. The pre-embedded location is as follows: Figure 2 As shown, the prefabricated maintenance box 2 with a rectangular notch side plate is flush with the outer edge of the step, and the step plane is flush with the top surface of the prefabricated maintenance box, located at the left and right ends of the step.

[0030] Furthermore, the fixing plate 5 is welded into the prefabricated maintenance box 2, with one fixing plate 5 welded to each side of the rectangular notch, and the surface of the fixing plate 5 being flush with the plane of the notch. The width of the rectangular notch on the side plate is the same as or slightly larger than the thickness of the railing post 7, and the specific dimensions are determined according to the actual site conditions. The fixing plate 5 has holes at both the top and bottom, and the spacing and size of the holes are consistent with the holes at the bottom of the railing post 7.

[0031] Furthermore, the first bolt assembly 4 and the second bolt assembly 6 each include bolts, which pass sequentially through the fixing plate 5 and the railing post 7 and are secured by nuts. This bolted connection ensures that the railing post 7 can be easily disassembled or rotated by removing the first bolt assembly 4 and the second bolt assembly 6.

[0032] Furthermore, a rectangular groove 11 is formed between the fixing plates 5, and the rectangular groove 11 is used to cooperate with the railing post 7.

[0033] Furthermore, the lower end of the railing post 7 is machined with a first bolt hole 12 and a second bolt hole 13, which respectively cooperate with the first bolt assembly 4 and the second bolt assembly 6.

[0034] Furthermore, the upper end of the railing post 7 is machined with a first connecting hole 14 and a second connecting hole 15. The first connecting hole 14 is used to connect the marine anchor chain 10, and the second connecting hole 15 is used to connect the flexible handrail 9.

[0035] Furthermore, the flexible handrail 9 is made of rope or safety rope. The marine anchor chain 10 and the flexible handrail 9 can be selected and combined according to actual conditions.

[0036] Furthermore, in use, the railing post 7 can be laid down and completely disassembled by disassembling the first bolt assembly 4 and / or the second bolt assembly 6. For example, by disassembling the upper second bolt assembly 6, the railing post 7 can rotate around the lower first bolt assembly 4. A 90° rotation allows the railing post 7 to lie down on the side slope of the step. Simultaneously disassembling the first bolt assembly 4 and the second bolt assembly 6 allows the railing post 7 to be completely detached from the prefabricated maintenance box 1. Repeating this operation allows the entire handrail to be disassembled.

[0037] Furthermore, the number of steps 8 between two adjacent sets of prefabricated maintenance boxes 2 is determined according to the actual situation. This ensures that it can adapt to protection requirements at different heights.

[0038] The working process and principle of this utility model:

[0039] The railing post 7 can be laid down and completely disassembled by removing one or two bolts. For example, by removing the upper bolt, the railing post 7 can rotate around the lower bolt. A 90° rotation allows the railing post 7 to lie down on the side slope of the step. Simultaneously removing the upper and lower bolts allows the railing post 7 to be completely detached from the prefabricated maintenance box 1. By repeating the operation, the entire handrail can be disassembled.

[0040] In summary, the advantages of this utility model are:

[0041] First, it can be laid flat on both sides of the steps, without obstructing flood passage or touching the bottom of ships, and can be used on various sloping steps. Second, it is easy to disassemble; each railing post can be removed by simply removing two bolts. Third, each railing post is connected in sections by prefabricated anchor chains and flexible handrails, and any section can be disconnected to achieve different applications of the handrail under different water levels. Fourth, the overall components are highly versatile, easy to inspect and replace, and the prefabricated maintenance box does not require repeated disturbance, resulting in a longer service life and cost savings. Although this utility model is easy to disassemble, it still requires tools such as bolt wrenches of the correct size, which can prevent unauthorized personnel from arbitrarily disassembling the handrail and causing the protection to fail, thus eliminating safety hazards.

Claims

1. A detachable reclining ladder railing characterized in that, The prefabricated maintenance box (2) is embedded in the left and right ends of the step (8). The prefabricated maintenance box (2) has a fixing plate (5) welded in parallel inside. The fixing plates (5) are detachably installed with railing posts (7) through the first bolt assembly (4) and the second bolt assembly (6). Marine anchor chains (10) and flexible handrails (9) are installed between the railing posts (7) at different heights.

2. The detachable horizontal-vertical railing of claim 1, wherein: The bottom end of the prefabricated maintenance box (2) is fixed with a bottom surface stud (1), which is embedded in the inside of the step (8); the two outer sides of the prefabricated maintenance box (2) are fixed with side studs (3), which are embedded in the inside of the step (8).

3. The detachable horizontal-vertical railing of claim 1, wherein: The prefabricated maintenance box (2) is made of galvanized steel sheet. The prefabricated maintenance box (2) is box-shaped with no top cover and one side is open.

4. The detachable horizontal-vertical railing of claim 1, wherein: The first bolt assembly (4) and the second bolt assembly (6) each include bolts, which pass through the fixing plate (5) and the railing post (7) in sequence and are fixed by nuts.

5. The detachable horizontal-vertical railing of claim 1, wherein: A rectangular groove (11) is formed between the fixing plates (5), and the rectangular groove (11) is used to cooperate with the railing post (7).

6. The detachable horizontal / vertical rail of claim 4, wherein: The lower end of the railing post (7) is machined with a first bolt hole (12) and a second bolt hole (13), which are respectively matched with the first bolt assembly (4) and the second bolt assembly (6).

7. The detachable horizontal / vertical railings of claim 4, wherein: The upper end of the railing post (7) is machined with a first connecting hole (14) and a second connecting hole (15). The first connecting hole (14) is used to connect the marine anchor chain (10), and the second connecting hole (15) is used to connect the flexible handrail (9).

8. The detachable horizontal / vertical railing according to claim 1, wherein: The flexible handrail (9) is made of rope or safety rope.

9. The detachable horizontal / vertical railing according to claim 1, wherein: In use, the railing post (7) can be laid down and disassembled as a whole by disassembling the first bolt assembly (4) and / or the second bolt assembly (6).

10. The detachable horizontal-vertical railing of claim 1, wherein: The number of steps (8) between two adjacent prefabricated maintenance boxes (2) is determined according to the actual situation.

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