Space-saving folding step
By designing folding steps and using bolted adjusting lugs and mounting eye plates to achieve the folding and unfolding of the steps, the problems of large space occupation by the steps and high cost of widening the passage platform are solved, achieving the effect of reducing design complexity and cost without increasing the passage width.
Patent Information
- Application Number
- CN202520149221.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-03-17
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing ship safety escape passages have large steps that take up a lot of space, and widening the passage platform is costly, making it difficult to meet the width requirements of safety escape passages without increasing the passage width.
Design a folding step, which can be folded and unfolded by adjusting the lugs and mounting the eye plates connected by bolts, so as to ensure that the step does not affect the passage when not in use, and meets the width requirements of the safety escape route when in use.
It achieves a reduction in design complexity and cost without increasing the width of the passageway, while ensuring the accessibility and safety of the escape route and saving space.
Smart Images
Figure CN223999726U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of shipbuilding, and specifically relates to a space-saving folding step. Background Technology
[0002] In the existing technology, the net width of the ship's safety escape passage is required to be no less than 900mm. This passage is usually located in the ship's cabin bulkhead. The actual width of the ship's safety escape passage is 1000mm (including a 100mm margin). There are valves and other items that need to be operated on the bulkhead, so steps need to be arranged for easy access. However, arranging steps will occupy passage space. If the passage platform is widened, the cost will be greatly increased.
[0003] Without widening the aisle platform, this invention provides a space-saving folding step that effectively solves the above problems (the folded step only needs to be less than 100mm, and the unfolded step must meet the standard of not less than 150mm). Compared to widening the aisle platform, using folding steps simplifies the design and reduces manufacturing costs. Utility Model Content
[0004] The purpose of this invention is to provide a space-saving folding step. Compared with a widened passageway platform, the folding step simplifies the design and reduces costs. The step is lowered when in use and folded up when not in use, without affecting passage and saving more space.
[0005] The purpose of this utility model is achieved as follows: a space-saving folding step includes two symmetrical mounting pads, each mounting pad is fixed with a mounting eye plate, the mounting eye plate is perpendicular to the mounting pad, and an adjusting ear plate is connected to the mounting eye plate by bolts and nuts, the adjusting ear plate fits into the mounting eye plate, and a transverse step is provided between the two adjusting ear plates.
[0006] The structure of this utility model consists of: square steel steps, adjusting ear plates, mounting eye plates, limiting plates, mounting pads, and bolts (with nuts and washers). The method of use is as follows: the bolts act as pivots, allowing the adjusting ear plates to rotate. When the adjusting ear plates are horizontal, the steps are in the unfolded state. When the steps are not in use, loosen the nuts, rotate the steps 90° to fold them into an L-shape, and then tighten the bolts. Based on experience, no wrench is needed; tightening and loosening manually is sufficient. Compared with existing technologies, the advantages of this utility model are: compared to widening the passageway platform, using folding steps simplifies the design and reduces costs. The steps are lowered when in use and folded up when not in use, without affecting passage and saving space.
[0007] As a further improvement of this utility model, the adjusting ear plate abuts against the inner side of the mounting eye plate, the adjusting ear plate extends outward, and the step is made of square steel with one edge of the square steel facing upward. The step is installed between the extended ends of the two adjusting ear plates. The square steel step is a marine step, and the fact that one edge of the square steel faces upward can increase friction.
[0008] As a further improvement of this utility model, the bolt is perpendicular to the corresponding adjusting ear plate, and the bolt passes through the adjusting ear plate and the mounting eye plate in sequence. The nut is sleeved on the protruding end of the bolt, and a washer is provided between the nut and the corresponding mounting eye plate. The washer is annular and is fitted around the outer circumference of the bolt. The bolt acts as a pivot, and after the nut is loosened, the adjusting ear plate can drive the step to rotate.
[0009] As a further improvement of this utility model, a horizontal limiting plate is welded to the lower side of the mounting eye plate via a single-sided fillet weld. The limiting plate is correspondingly set with the adjusting ear plate. When the two adjusting ear plates drive the step to a horizontal state, the limiting plate blocks the adjusting ear plate from below and limits its position. Then, the nut is tightened, and the step is adjusted to a horizontal state and can be used.
[0010] As a further improvement of this utility model, both mounting pads are fixed to the side of the ship's cabin, and guardrails are provided corresponding to the ship's cabin. A passage platform is provided between the guardrails and the ship's cabin. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0012] Figure 2 This is the front view of the present invention.
[0013] Figure 3 This is a side view of the present invention.
[0014] Figure 4 for Figure 3 A sectional view along the AA direction.
[0015] Figure 5 for Figure 4 Enlarged view of point B in the middle.
[0016] Figure 6 This is a top view of the present invention.
[0017] Figure 7 This is a schematic diagram of the structure before the steps are folded.
[0018] Figure 8 This is a schematic diagram of the structure after the steps are folded.
[0019] Among them, 1 is the mounting plate, 2 is the mounting eye plate, 3 is the bolt, 4 is the nut, 5 is the adjusting ear plate, 6 is the step, 7 is the shim, 8 is the limiting plate, 9 is the single-sided fillet weld, 10 is the ship's cabin, 11 is the guardrail, and 12 is the passage platform. Detailed Implementation
[0020] like Figure 1-8 As shown, a space-saving folding step includes two symmetrical mounting plates 1. Each mounting plate 1 has a mounting eye plate 2 fixed on it. The mounting eye plate 2 is perpendicular to the mounting plate 1. An adjusting ear plate 5 is connected to the mounting eye plate 2 by bolts 3 and nuts 4. The adjusting ear plate 5 fits into the mounting eye plate 2. A transverse step 6 is provided between the two adjusting ear plates 5.
[0021] Adjusting lug 5 abuts against the inner side of mounting eye plate 2, extending outwards. Step 6 is made of square steel with one edge facing upwards, and is installed between the extended ends of the two adjusting lugs 5. The square steel step 6 is a marine step 6, with one corner of the square steel facing upwards to increase friction. Bolt 3 is perpendicular to the corresponding adjusting lug 5, passing through the adjusting lug 5 and mounting eye plate 2 in sequence. Nut 4 is fitted onto the extended end of bolt 3, and a washer 7 is provided between nut 4 and the corresponding mounting eye plate 2. The washer 7 is annular, fitting around the outer circumference of bolt 3. Bolt 3 acts as a pivot; loosening nut 4 allows adjusting lug 5 to rotate step 6. A horizontal limiting plate 8 is welded to the lower side of mounting eye plate 2 via a single-sided fillet weld 9, corresponding to the adjusting lug 5. When the two adjusting lugs 5 drive the step 6 to rotate to a horizontal position, the limiting plate 8 blocks the adjusting lugs 5 from below and limits their position. Then, the nut 4 is tightened, and the step 6 is adjusted to a horizontal position and can be used.
[0022] Both mounting plates 1 are fixed to the side of the ship's cabin 10, and guardrails 11 are provided corresponding to the ship's cabin 10. A passageway platform 12 is provided between the guardrails 11 and the ship's cabin 10. A passageway is formed between the guardrails 11 and the ship's cabin 10.
[0023] The structure of this utility model consists of: a square steel step 6, an adjusting ear plate 5, a mounting eye plate 2, a limiting plate 8, a mounting pad 1, and bolts 3 (with nuts 4 and washers 7); the method of use is as follows: bolts 3 act as a pivot, allowing the adjusting ear plate 5 to rotate. Figure 7 When the adjusting ear plate 5 is in a horizontal position, the step 6 is in the unfolded state. The width of the passage between the guardrail 11 and the ship's cabin 10 is 1000mm, and the width of the step 6 after unfolding is 181mm; Figure 8When not in use, loosen nut 4, rotate step 6 90° to fold it into an L-shape, and then tighten bolt 3. The width of step 6 after folding is 85mm. Based on experience, no wrench is needed; tightening and loosening by hand is sufficient to complete the above functions. The advantages of this utility model are: compared with the widened passage platform 12, the use of folding step 6 simplifies the design and reduces costs. Step 6 is lowered when in use and folded up when not in use, without affecting passage and saving space.
[0024] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.
Claims
1. A space saving folding step, characterised in that, Two left-right symmetrical installation base plates are included, each of which is fixed with an installation eye plate, the installation eye plate is perpendicular to the installation base plate, an adjusting ear plate is connected to the installation eye plate through a bolt and a nut, the adjusting ear plate is attached to the installation eye plate, a horizontal step is arranged between the two adjusting ear plates; the adjusting ear plate is attached to the inner side of the installation eye plate, the adjusting ear plate extends outward, the step is a square steel, one edge of the square steel is arranged upward, and the step is arranged between the extending ends of the two adjusting ear plates; the bolt is perpendicular to the corresponding adjusting ear plate, the bolt is sequentially arranged through the adjusting ear plate and the installation eye plate, the nut is sleeved on the extending end of the bolt, and a gasket is arranged between the nut and the corresponding installation eye plate; a horizontal limiting plate is welded to the lower side of the installation eye plate through a single-sided fillet weld, and the limiting plate is arranged correspondingly to the adjusting ear plate.
2. The space saving folding step of claim 1 wherein, Both the installation base plates are fixed to the side of the cabin of the ship, a guardrail is arranged correspondingly to the cabin of the ship, and a passage platform is arranged between the guardrail and the cabin of the ship.