Novel marine ladder

Abstract

The utility model discloses a novel marine ladder. The novel marine ladder comprises ladder rod assemblies and a pedal assembly, wherein the ladder rod assemblies are symmetrically arranged left and right; the ladder rod assembly is formed by assembling a plurality of sliding rods which are connected in a sleeved mode. A sliding limiting device is arranged between the upper sliding rod and the lower sliding rod. The sliding limiting device achieves sliding fixing of the upper sliding rod and the lower sliding rod through the fixing screws and the limiting device. The welding pedal is designed to be of an open structure, the welding difficulty is reduced, the situation that seawater cannot be discharged in time when the ladder is used due to tiny sand holes in the welding process is avoided, then the sliding limiting device and the plastic friction plate are fixed to the tail of the sliding rod together through screws, a lining is abandoned, the machining difficulty is reduced, and the length of the ladder is convenient to adjust; and the risk caused by falling of the bushing is avoided.

Description

Technical Field

[0001] This utility model relates to a novel marine ladder, belonging to the technical field of marine facilities. Background Technology

[0002] With the rapid development of the shipbuilding industry, the safety, reliability, and user-friendly design of ship facilities are receiving increasing attention. Among the many ship facilities, marine ladders, as essential tools for crew members to board and disembark, directly impact their safety and quality of life. Currently, marine ladders on the market mainly suffer from the following problems:

[0003] 1. Simple Structure: Existing marine ladders are often designed in a simple and uninnovative way, failing to meet the needs of different ships and operating environments. This fixed structure limits the ladder's functional versatility, making it inefficient to use under certain specific conditions.

[0004] 2. High Manufacturing Requirements: The manufacturing process of traditional marine ladders is complex, especially in the welding process, which requires high-precision operation and good welding technology to ensure the strength and durability of the ladder. This not only increases production costs but also places higher demands on production equipment and the skills of workers.

[0005] 3. Quality Issues: Due to the complexity of the welding process, current ladders may develop welding defects during use, such as microscopic sand holes. These defects can easily lead to water ingress during shipboard use, affecting the stability and safety of the ladder.

[0006] 4. Poor ease of use: Existing marine ladders typically use a fixed design for length adjustment, making it impossible to easily adjust them to different operational needs. Furthermore, some designs fail to effectively drain water after it enters the vessel, leading to safety hazards during use.

[0007] To address the shortcomings of existing technologies, this utility model proposes a novel marine ladder, which aims to improve the safety, reliability, and ease of use of the ladder by simplifying the production process and optimizing the design, thereby enhancing the quality of life and work efficiency of crew members. Utility Model Content

[0008] In view of the problems existing in the prior art, the present invention provides a new type of marine ladder, thereby solving the above-mentioned technical problems.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is: a novel marine ladder, comprising ladder rod assemblies arranged symmetrically on the left and right and tread assemblies located between the ladder rod assemblies; the ladder rod assembly is assembled from multiple sleeved sliding rods; a sliding limiting device is provided between the upper and lower sliding rods; the sliding limiting device achieves the sliding and fixing of the upper and lower sliding rods through fixing screws and limiting devices.

[0010] Furthermore, the sliding limiting device includes a fixing screw, a plastic friction plate, and a limiting plate; the limiting plate is fixed to the upper end of the lower sliding rod, and the top of the lower sliding rod extends into the inner cavity of the upper sliding rod; a plastic friction plate is provided on the upper end of the limiting plate; the plastic friction plate and the limiting plate have threaded fixing holes at their center ends, and a slot for screw head insertion is also provided on the fixing hole of the plastic friction plate.

[0011] Furthermore, the upper end of the sliding rod is provided with an inwardly circling V-shaped bend protrusion, which is used to cooperate with the limiting piece to prevent the lower end of the sliding rod from coming out.

[0012] Furthermore, a connecting fixing plate is provided inside the sliding rod at the lower end. The connecting fixing plate has a threaded fixing hole for fixing the end of the screw to pass through, thereby providing stable support to the end of the screw.

[0013] Furthermore, the pedal assembly includes a welded frame and an anti-slip plastic pedal located on the welded frame; both ends of the welded frame and the anti-slip plastic pedal are arc-shaped, which are used to cooperate with the arc-shaped surface of the sliding rod to achieve a tight connection.

[0014] Furthermore, the welded frame is integrally bent and formed, and its overall structure is an open U-shaped part with both sides inclined inward; the anti-slip plastic pedal has the same shape as the welded frame, and its two sides are arranged close to the two outer sides of the welded frame at an angle.

[0015] Furthermore, the welded frame is fixedly connected to the sliding rod by welding.

[0016] The beneficial effects of this utility model are:

[0017] The sliding limit device effectively prevents accidental slippage of the sliding rod during use, improving the ladder's safety. The combination of the fixing screw and the limit device ensures the stability of the sliding rod, avoiding structural instability problems that may occur with traditional ladders during use.

[0018] By structurally designing the welding pedal, the welding difficulty is reduced, and the possibility of seawater entering during use due to tiny sand holes in the welding process cannot be eliminated in time.

[0019] The sliding limiting device and the plastic friction plate are fixed to the end of the sliding rod with screws, and the bushing is abandoned, which reduces the processing difficulty, facilitates the adjustment of the ladder length, and avoids the risk of bushing falling off.

[0020] The step assembly uses non-slip plastic steps, which effectively increases the ladder's anti-slip performance and enhances the safety of crew members when ascending and descending the ladder. The arc-shaped design of the welded frame, in conjunction with the sliding rods, achieves a tight connection, enhancing the overall structural stability. Attached Figure Description

[0021] Figure 1 This is a schematic front view of the structure of this utility model;

[0022] Figure 2 This is a schematic left view of the structure of this utility model;

[0023] Figure 3 This utility model Figure 1 Enlarged schematic diagram of structure A;

[0024] Figure 4 This utility model Figure 2 Enlarged diagram of the B structure.

[0025] In the diagram: 1. Ladder rod assembly, 11. Sliding rod, 111. V-shaped bend protrusion, 112. Connecting fixing plate, 2. Pedal assembly, 21. Welded frame, 22. Anti-slip plastic pedal, 3. Sliding limiting device, 31. Fixing screw, 32. Plastic friction plate, 33. Limiting plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0028] like Figure 1 , Figure 2As shown, a novel marine ladder includes ladder rod assemblies 1 arranged symmetrically on the left and right sides and tread assembly 2 located between the ladder rod assemblies 1; the ladder rod assembly 1 is assembled from multiple sleeved sliding rods 11; a sliding limiting device 3 is provided between the upper and lower sliding rods 11; the sliding limiting device 3 achieves the sliding and fixing of the upper and lower sliding rods 11 through fixing screws 31 and limiting devices.

[0029] In this preferred embodiment, refer to... Figure 3 As shown in the enlarged schematic diagram, the sliding limiting device 3 includes a fixing screw 31, a plastic friction plate 32, and a limiting plate 33; the limiting plate 33 is fixed to the upper end of the lower sliding rod 11, and the top of the lower sliding rod 11 extends into the inner cavity of the upper sliding rod 11; the upper end of the limiting plate 33 is provided with a plastic friction plate 32; the center ends of the plastic friction plate 32 and the limiting plate 33 are provided with threaded fixing holes, and a slot for screw head insertion is also provided on the fixing hole of the plastic friction plate 32.

[0030] In this preferred embodiment, continue to refer to... Figure 3 The upper end of the sliding rod 11 is provided with an inwardly circling V-shaped bend protrusion 111 at its tail end. The V-shaped bend protrusion 111 is used to cooperate with the limiting piece 33 to prevent the lower end of the sliding rod 11 from coming out.

[0031] In this preferred embodiment, continue to refer to... Figure 3 The sliding rod 11 at the lower end is also provided with a connecting fixing plate 112. The connecting fixing plate 112 has a threaded fixing hole, which is used to fix the tail end of the screw 31 through, thereby providing stable support for its tail end.

[0032] In this preferred embodiment, refer to... Figure 4 The pedal assembly 2 includes a welded frame 21 and an anti-slip plastic pedal 22 located on the welded frame 21; the welded frame 21 and the anti-slip plastic pedal 22 have arc-shaped ends, which are used to cooperate with the arc-shaped surface of the sliding rod 11 to achieve a tight connection.

[0033] In this preferred embodiment, continue to refer to... Figure 4 The welded frame 21 is integrally bent and formed, and its overall structure is an open U-shaped part with both sides inclined inward; the anti-slip plastic pedal 22 has the same shape as the welded frame 21, and its two sides are arranged close to the two outer sides of the welded frame 21 at an angle.

[0034] In this preferred embodiment, the welded frame 21 is fixedly connected to the sliding rod 11 by welding.

[0035] In this technical solution, the ladder assembly consists of multiple sleeved sliding rods, with a sliding limiting device installed between the upper and lower sliding rods. During use, the crew can adjust the height of the sliding rods as needed to adapt to different working environments. The sliding limiting device secures the upper and lower sliding rods through a combination of fixing screws and limiting plates. Once the height of the sliding rod is adjusted, the fixing screws are tightened, forming a stable connection between the limiting plate and the sliding rod, thus preventing accidental slippage between the upper and lower rods.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements 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 novel marine ladder, characterized in that, It includes a ladder rod assembly (1) arranged symmetrically on the left and right and a step assembly (2) located between the ladder rod assemblies (1); the ladder rod assembly (1) is assembled from multiple sleeved sliding rods (11); a sliding limiting device (3) is provided between the upper and lower sliding rods (11); the sliding limiting device (3) achieves the sliding and fixing of the upper and lower sliding rods (11) through fixing screws (31) and limiting device; The sliding limiting device (3) includes a fixing screw (31), a plastic friction plate (32), and a limiting plate (33); the limiting plate (33) is fixed at the upper end of the lower sliding rod (11), and the top of the lower sliding rod (11) extends into the inner cavity of the upper sliding rod (11); the upper end of the limiting plate (33) is provided with a plastic friction plate (32); the center end of the plastic friction plate (32) and the limiting plate (33) is provided with a threaded fixing hole, and a slot for screw head insertion is also provided on the fixing hole of the plastic friction plate (32).

2. The novel marine ladder according to claim 1, characterized in that, The upper end of the sliding rod (11) is provided with an inwardly circling V-shaped bend protrusion (111), which is used to cooperate with the limiting piece (33) to prevent the lower end of the sliding rod (11) from coming out.

3. The novel marine ladder according to claim 1, characterized in that, A connecting fixing plate (112) is also provided inside the sliding rod (11) at the lower end. The connecting fixing plate (112) has a threaded fixing hole for fixing the tail end of the screw (31) to pass through, thereby providing stable support for its tail end.

4. A novel marine ladder according to claim 1, characterized in that, The pedal assembly (2) includes a welded frame (21) and an anti-slip plastic pedal (22) located on the welded frame (21); the welded frame (21) and the anti-slip plastic pedal (22) are arc-shaped at both ends, which are used to cooperate with the arc-shaped surface of the sliding rod (11) to achieve a tight connection.

5. A novel marine ladder according to claim 4, characterized in that, The welded frame (21) is integrally bent and formed, and its whole is an open U-shaped structure with both sides inclined inward; the anti-slip plastic pedal (22) has the same shape as the welded frame (21), and its two sides are arranged close to the two outer sides of the welded frame (21) at an angle.

6. A novel marine ladder according to claim 4, characterized in that, The welded frame (21) is fixedly connected to the sliding rod (11) by welding.

Images