Marine straight ladder

Abstract

The utility model discloses a marine straight ladder, including straight ladder body, is equipped with the protection ring in the upper portion of straight ladder body, one side of protection ring height direction with one side straight ladder body height direction detachable connection, the other side of protection ring height direction with one side straight ladder body height direction swing joint. The utility model discloses a marine straight ladder, and the design cost is low, improves the cabin space utilization rate, can let the crew be more convenient to overhaul the valve in the intermediate position of bulkhead, to this, improves work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of marine technology, and specifically relates to a ship ladder. Background Technology

[0002] In recent years, as civilian ships have become larger and their systems more complex, the number of valves installed on the bulkheads of various compartments has also increased. Generally, based on their deployment height, they can be roughly divided into three categories: low-altitude valves, installed at approximately 1.7 meters above the deck, which can be operated using human height; medium-altitude valves, installed between 1.7 and 3 meters, which require climbing tools to assist personnel in operation; and finally, high-altitude valves located near the top of the deck, which generally require a ladder for climbing. According to regulations, a safety ring must be added to the ladder starting at a distance of more than 2 meters from the deck surface, both to protect personnel safety and to restrict movement. For medium- and high-altitude valves, which are generally above 2 meters and fall within the protection ring's range, some valve placements are often not within reach of the arm span. Reaching for the valves by turning sideways is often restricted by the fixed safety ring. Therefore, designers have to consider other ways to inspect valves. This increases the design cost for construction workers and does not provide users with a quick and easy experience. Therefore, for valves that are in the mid-to-high altitude range, there is an urgent need to design a new type of marine ladder that is easy to inspect and repair to solve this problem. Utility Model Content

[0003] To address the aforementioned issues, this utility model provides a marine ladder with low design cost, improved engine room space utilization, and the ability for crew members to conveniently inspect valves located in the middle of the bulkhead, thereby enhancing work efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A marine ladder includes a ladder body, a protective ring is provided on the upper part of the ladder body, one side of the protective ring in the height direction is detachably connected to one side of the ladder body in the height direction, and the other side of the protective ring in the height direction is rotatably connected to one side of the ladder body in the height direction.

[0005] Furthermore, the straight ladder body includes two vertically spaced flat steels and square steels equally spaced between the two flat steels for connecting the two flat steels. The distance between the first square steel and the deck surface from bottom to top is 300mm~350mm.

[0006] Furthermore, four sets of support legs are provided at intervals on the side away from the protective ring in the height direction of the two flat steels. The four sets of support legs are connected to the flat steels by bolts. Two sets of the four sets of support legs are flat steel type support legs, and two sets are angle steel type support legs. The two sets of flat steel type support legs are located at the upper and lower ends of the flat steels, and the two sets of angle steel type support legs are located between the two sets of flat steel type support legs.

[0007] Furthermore, the distance between the lower end face of the protective ring and the deck surface is not less than 2m, and the vertical distance between the inner side of the protective ring opposite to the straight ladder body and the square steel is 600mm.

[0008] Furthermore, one side of the protective ring is detachably connected to one of the flat steel bars via a butterfly bolt, and the other side of the protective ring is rotatably connected to the other flat steel bar via a hinge.

[0009] Furthermore, a handle is fixed to the outside of the flat steel near the side that needs maintenance. The handle is vertically positioned and located within the height range of the protective ring.

[0010] This utility model of a marine ladder expands the area for human movement through an openable protective ring. With the help of the ladder handles and safety ropes, valves in the middle layer of the bulkhead can be easily and quickly inspected. During non-maintenance hours, the secure protective ring provides strong protection for crew members inspecting the engine room. The structure is simple, with the entire ladder made of only flat and square steel, making it lightweight and material-saving. The support legs are connected by bolts, which reduces the amount of welding and makes the ladder safer and more reliable. Furthermore, the ladder can be disassembled and replaced. The standard design of the ladder and protective ring has already been used on actual ships. Based on this, improvements and innovations have certain practical and promotional significance. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of the ship ladder described in this utility model.

[0012] Among them, 1-straight ladder body, 2-protective ring, 3-flat steel support leg, 4-angle steel support leg, 5-butterfly bolt, 6-hinge, 7-handle, 11-flat steel, 12-square steel. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0014] like Figure 1As shown, a marine ladder includes a ladder body 1, with a protective ring 2 provided on the upper part of the ladder body 1. One side of the protective ring 2 in the height direction is detachably connected to one side of the ladder body 1 in the height direction, and the other side of the protective ring 2 in the height direction is rotatably connected to one side of the ladder body 1 in the height direction.

[0015] Furthermore, the straight ladder body 1 includes two vertically spaced flat steels 11 and square steels 12 equally spaced between the two flat steels 11 for connecting the two flat steels 11. The distance between the first square steel 12 from bottom to top and the deck surface is 300mm~350mm.

[0016] Furthermore, four sets of support legs are provided at intervals on the side of the two flat steel bars 11 away from the protective ring 2 in the height direction. The four sets of support legs are connected to the flat steel bars 11 by bolts. Among the four sets of support legs, two sets are flat steel type support legs 3 and two sets are angle steel type support legs 4. The two sets of flat steel type support legs 3 are located at the upper and lower ends of the flat steel bars 11, and the two sets of angle steel type support legs 4 are located between the two sets of flat steel type support legs 3.

[0017] Furthermore, the distance between the lower end face of the protective ring 2 and the deck surface is not less than 2m, and the vertical distance between the inner side of the protective ring 2 opposite to the straight ladder body 1 and the square steel 12 is 600mm.

[0018] Furthermore, one side of the protective ring 2 is detachably connected to one of the flat steel bars 11 via a butterfly bolt 5, and the other side of the protective ring 2 is rotatably connected to the other flat steel bar 11 via a hinge 6.

[0019] Furthermore, a handle 7 is fixed to the outside of the flat steel 11 near the side that needs to be inspected. The handle 7 is arranged vertically and is located within the height range of the protective ring 2.

[0020] Those skilled in the art should understand that the above description is merely a specific embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A marine straight ladder characterized in that, The system includes a straight ladder body, with a protective ring on the upper part of the ladder body. One side of the protective ring in the height direction is detachably connected to one side of the ladder body in the height direction, and the other side of the protective ring in the height direction is rotatably connected to one side of the ladder body in the height direction.

2. A ship's right-angle ladder according to claim 1, characterised in that The straight ladder body includes two vertically spaced flat steels and square steels equally spaced between the two flat steels for connecting the two flat steels. The distance between the first square steel and the deck surface from bottom to top is 300mm~350mm.

3. The marine ladder according to claim 2, characterized in that, Four sets of support legs are provided at intervals on the side away from the protective ring in the height direction of the two flat steels. The four sets of support legs are connected to the flat steels by bolts. Two sets of the four sets of support legs are flat steel type support legs, and two sets are angle steel type support legs. The two sets of flat steel type support legs are located at the upper and lower ends of the flat steels, and the two sets of angle steel type support legs are located between the two sets of flat steel type support legs.

4. The marine ladder according to claim 2, characterized in that, The distance between the lower end face of the protective ring and the deck surface is not less than 2m, and the vertical distance between the inner side of the protective ring opposite to the straight ladder body and the square steel is 600mm.

5. A ship's right-angle ladder according to claim 2, characterised in that, One side of the protective ring is detachably connected to one of the flat steel bars via a butterfly bolt, and the other side of the protective ring is rotatably connected to the other flat steel bar via a hinge.

6. The marine right-angle ladder of claim 2, wherein, A handle is fixed to the outside of the flat steel near the side that needs maintenance. The handle is vertically positioned and located within the height range of the protective ring.

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