Foldable vertical ladder protection device for ship

Abstract

The utility model relates to a foldable vertical ladder protection device for a ship. The foldable vertical ladder protection device comprises a pin shaft with threads at two ends, a nut and a connecting plate with a pin shaft hole, the two ends of the vertical ladder protection ring are respectively connected with a plane connecting plate, and the plane connecting plates are fixed on the connecting plates with the pin shaft holes through pin shafts and nuts; eye plates are fixedly arranged on the vertical ladder protection rings, and the eye plates between the vertically adjacent vertical ladder protection rings are detachably connected through a plurality of steel wire ropes; when the space occupied by the vertical ladder protection ring needs to be vacated, the steel wire rope is detached, the nut is loosened, the vertical ladder protection ring and the plane connecting plate rotate around the pin shaft together, the vertical ladder protection ring is turned to be parallel to the vertical ladder, and the nut is tightened again. According to the utility model, the protection ring of the vertical ladder can be conveniently removed without being detached under the condition that the occupied space needs to be vacated, so that the space requirement is considered, and the safety of sailors is ensured; the steel wire ropes are used for replacing conventional vertical steel plate blocking strips, so that the weight of the vertical ladder protection device is reduced, and the dismounting is convenient.

Description

Technical Field

[0001] The utility model relates to a foldable straight ladder protection device for ships, belonging to the technical field of the design of straight ladder passages on ships. Background Art

[0002] A straight ladder is a commonly used vertical passage facility on ships. For a straight ladder with a relatively large length, to protect the safety of personnel, a protection ring is usually added at a height of more than 2 meters of the straight ladder to prevent crew members from falling and protect the safety of the crew. Conventional straight ladder protection rings are as shown in Figure 1 and Figure 2 .

[0003] Conventional straight ladder protection rings need to occupy a certain space and cannot be installed in areas with space limitations on ships. For example, a certain vehicle carrier has requirements for air draft limitations. When the masthead light is lowered, if a protection ring is installed on the straight ladder on the masthead light, it is easy to exceed the air draft height limit requirement, as shown in Figure 3 .

[0004] In response to this problem, there are two existing treatment methods:

[0005] The first method: There is no protection for the straight ladder on the mast. This method has the following problems: There is no protection device when crew members climb the straight ladder, which is not conducive to the safety of the crew;

[0006] The second method: Lower the height of the fixed part of the mast to reserve space for the protection ring of the straight ladder on the collapsible part of the mast. This method has the following problems: First, the weight of the collapsible part increases, which is not conducive to the operation of lowering the collapsible part. Second, this method is more likely to cause vibration of the mast. Content of the Utility Model

[0007] The purpose of the utility model is to provide a foldable straight ladder protection device for ships to solve the above technical problems.

[0008] A foldable straight ladder protection device for ships includes a straight ladder protection ring 2, a pin shaft 7 with threads at both ends, a nut 5, and a connecting plate with a pin shaft hole; both ends of the straight ladder protection ring 2 are respectively connected to a flat connecting plate 3, and the flat connecting plate 3 is fixed on the connecting plate with a pin shaft hole through the pin shaft 7 and the nut 5; an eye plate 8 is fixedly arranged on the straight ladder protection ring 2, and the eye plates 8 between the upper and lower adjacent straight ladder protection rings 2 are detachably connected by a plurality of steel wires 9; when the space occupied by the straight ladder protection ring 2 needs to be vacated, the steel wire 9 is removed, the nut is loosened, and the straight ladder protection ring 2 together with the flat connecting plate 3 is rotated around the pin shaft 7 to turn the straight ladder protection ring 2 to a state parallel to the straight ladder 1, and then the nut 5 is tightened again.

[0009] Preferably, detachable buckles are arranged at both ends of the steel wire 9 and are connected to the eye plate 8 through the buckles.

[0010] Preferably, the connecting plate with a pin shaft hole is a right-angle connecting plate 4. One end of the right-angle connecting plate 4 is fixed to the side of the straight ladder 1, and the other end is fixed to the pin shaft 7 through the nut 5.

[0011] Preferably, the steel wire ropes 9 are arranged in 3 columns in the vertical direction and are evenly distributed.

[0012] Preferably, a gasket 6 is further included, and the gasket 6 is directly matched with the nut 5.

[0013] Preferably, the straight ladder 1 is installed on the mast of the ship.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1) When it is necessary to vacate the occupied space, the protection circle of the straight ladder can be conveniently removed without disassembly, taking into account both the space requirement and ensuring the safety of the crew.

[0016] 2) The use of steel wire ropes to replace the conventional vertical steel plate bars reduces the weight of the straight ladder protection device and is also convenient for disassembly;

[0017] 3) The steel wire ropes and the protection circle are convenient to replace, extending the service life of the straight ladder protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a top view of a straight ladder protection device for a ship in the prior art.

[0019] Figure 2 is an installation schematic diagram of a straight ladder protection device for a ship in the prior art.

[0020] Figure 3 is a schematic diagram showing that when the lamp mast is laid down, if a protection circle is installed on the straight ladder on the lamp mast, it is likely to exceed the air draft height limit requirement as introduced in the background art.

[0021] Figure 4 is a top view of the foldable straight ladder protection device for a ship of the present utility model.

[0022] Figure 5 is Figure 4 an enlarged view of node 1 in

[0023] Figure 6 is an installation schematic diagram of the foldable straight ladder protection device for a ship of the present utility model.

[0024] Figure 7 is an installation schematic diagram after the straight ladder protection circle is turned over and folded.

[0025] In the figure, 1. straight ladder, 2. straight ladder protection ring, 3. planar connecting plate, 4. right-angle connecting plate, 5. nut, 6. gasket, 7. pin shaft, 8. eye plate, 9. wire rope. Detailed implementation mode

[0026] The present utility model will be further described below in conjunction with the attached drawings and specific embodiments.

[0027] See Figures 4 - 7 , a foldable straight ladder protection device for ships, including a straight ladder protection ring 2, including a pin shaft 7 with threads at both ends, a nut 5, and a connecting plate with a pin shaft hole; both ends of the straight ladder protection ring 2 are respectively connected to a planar connecting plate 3, and the planar connecting plate 3 is fixed on the connecting plate with a pin shaft hole through the pin shaft 7 and the nut 5; an eye plate 8 is fixedly arranged on the straight ladder protection ring 2, and the eye plates 8 between the vertically adjacent straight ladder protection rings 2 are detachably connected by a plurality of wire ropes 9; when the space occupied by the straight ladder protection ring 2 needs to be vacated, the wire rope 9 is removed, the nut is loosened, and the straight ladder protection ring 2 together with the planar connecting plate 3 is rotated around the pin shaft 7, so that the straight ladder protection ring 2 is turned to a state parallel to the straight ladder 1, and the nut 5 is tightened again.

[0028] See Figure 6 , both ends of the wire rope 9 are provided with detachable buckles, and are connected to the eye plate 8 through the buckles. The attached drawing specifically shows the buckles.

[0029] See Figure 4 , the connecting plate with a pin shaft hole is a right-angle connecting plate 4, one end of the right-angle connecting plate 4 is fixed to the side of the straight ladder 1, and the other end is fixed to the pin shaft 7 through the nut 5.

[0030] See Figure 6 , the wire rope 9 has 3 columns in the vertical direction and is evenly arranged. 2 columns are drawn in the figure, and actually there is another column that is blocked.

[0031] See Figure 5 , further including a gasket 6, and the gasket 6 is directly matched with the nut 5.

[0032] See Figures 6 - 7 , the straight ladder 1 is installed on the mast of the ship.

[0033] The present utility model enables the straight ladder protection ring to be conveniently removed without disassembly when the occupied space needs to be vacated, taking into account both space requirements and ensuring the safety of crew members. Using wire ropes to replace the conventional vertical steel plate bars reduces the weight of the straight ladder protection device and is convenient for disassembly; the wire ropes and the protection ring are convenient to replace, extending the service life of the straight ladder protection device.

[0034] Figure 6To protect the normal use state of the protective circle, when the straight ladder is not needed by anyone and the space where the protective circle of the straight ladder is located cannot meet certain requirements, first untie the wire rope 9 from the eye plate 8, loosen the nuts on both sides of the pin shaft. When the pin shaft can rotate normally, rotate the protective circle to a direction parallel to the straight ladder, and then tighten the nuts on both sides of the pin shaft. Figure 7 as shown.

[0035] Key points of the present utility model:

[0036] 1. Utilize the rotation principle of the pin shaft to rotate the protective circle of the straight ladder, so that the protective circle can meet the safety protection of crew members when unfolded and does not occupy the space behind the straight ladder when stored.

[0037] 2. The wire rope ensures the safety of the crew's back in a taut state and is convenient to disassemble.

[0038] The above are the preferred embodiments of the present utility model. Those of ordinary skill in the art can also make various transformations or improvements on this basis. Without departing from the general concept of the present utility model, these transformations or improvements should fall within the scope of protection required by the present utility model.

Claims

1. A foldable straight ladder protection device for ships, comprising a straight ladder protection ring (2), characterized in that: It includes a pin shaft (7) with threads at both ends, a nut (5), and a connecting plate with a pin hole; Both ends of the straight ladder protection ring (2) are respectively connected to a flat connecting plate (3), and the flat connecting plate (3) is fixed on the connecting plate with a pin hole through the pin shaft (7) and the nut (5); An eye plate (8) is fixedly arranged on the upper part of the straight ladder protection ring (2), and the eye plates (8) between the vertically adjacent straight ladder protection rings (2) are detachably connected by a plurality of steel wires (9); when the space occupied by the straight ladder protection ring (2) needs to be vacated, the steel wire (9) is removed, the nut is loosened, and the straight ladder protection ring (2) together with the flat connecting plate (3) is rotated around the pin shaft (7) to turn the straight ladder protection ring (2) to a state parallel to the straight ladder (1), and then the nut (5) is tightened again.

2. The foldable straight ladder protection device for ships according to claim 1, characterized in that: Both ends of the steel wire (9) are provided with detachable buckles, and are connected to the eye plate (8) through the buckles.

3. The foldable straight ladder protection device for ships according to claim 1, characterized in that: The connecting plate with a pin hole is a right-angle connecting plate (4), one end of the right-angle connecting plate (4) is fixed to the side of the straight ladder (1), and the other end is fixed to the pin shaft (7) through the nut (5).

4. The foldable straight ladder protection device for ships according to claim 1, characterized in that: The steel wires (9) are arranged in 3 columns in the vertical direction and are evenly distributed.

5. The foldable straight ladder protection device for ships according to claim 1, wherein: It also includes a gasket (6), and the gasket (6) is directly matched with the nut (5).

6. The foldable straight ladder protection device for ships according to claim 1, characterized in that: The straight ladder (1) is installed on the mast of the ship.

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