Foremast structure and container ship

Abstract

The invention discloses a foremast structure and a container ship, and belongs to the technical field of ships, the foremast structure comprises a wind shield and a foremast body, and the wind shield is of a curved surface structure arranged on the front portion of a deck; the foremast body comprises an upper mast body and a lower mast body, a supporting stable cable is connected between the upper mast body and the wind shield, the lower mast body is connected with the top of the wind shield, and the bottom side of the lower mast body extends towards the inclined front portion of the deck to form a flow guide inclined face. The lower mast body and the wind shield jointly define a closed enclosure, and the enclosure is used for containing signal equipment. The container ship comprises a ship body, and the ship body is provided with the foremast structure. According to the foremast structure, through the unique layout and structural design of the wind shield and the foremast body, the airflow environment of a ship is effectively optimized, the stability of the foremast is enhanced, crew operation is facilitated, and the ship navigation performance and operation convenience are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and particularly relates to a foremast structure and a container ship. Background Art

[0002] The foremast of a large container ship is generally a long-columnar steel plate welded structure, which is arranged at the bow of the ship and mainly provides a layout space for signal equipment, lighting equipment, etc. In traditional designs, the foremast is a separate mast structure, welded on the upper deck at the bow or the forecastle deck.

[0003] The traditional foremast of a container ship is usually arranged in the middle area of the bow mooring deck, blocking the line of sight for mooring operations and not meeting the requirements of current new mooring specifications. In recent years, in order to reduce the ship's navigation resistance, save fuel, and increase the voyage, large container ships generally have a windshield structure arranged at the bow. However, after the windshield is arranged, the standing rigging of the foremast cannot be normally pulled onto the deck, making it extremely difficult to handle the vibration of the foremast during later use. Moreover, the existing foremast and windshield are independently designed. The foremast is usually arranged behind the windshield, leaving a gap of about 1 m from the windshield, which is likely to form an air flow vortex when sailing against the wind, weakening the drag reduction effect of the windshield. In addition, there is no layout space for the existing foremast. Currently, signal equipment is stored in the bosun's cabin below the mooring deck, and the travel distance is relatively long during relevant operations, which is not conducive to crew operations. Summary of the Invention

[0004] The purpose of the present invention is to provide a foremast structure and a container ship to solve the technical problems existing in the prior art, such as the foremast layout affecting the mooring line of sight, difficult handling of standing rigging and vibration, poor cooperation between the foremast and the windshield affecting the drag reduction effect, and lack of layout space.

[0005] With the above concept, the technical solution adopted by the present invention is as follows:

[0006] On the one hand, the present invention provides a foremast structure, including:

[0007] A windshield, which is a curved surface structure arranged at the front of the deck;

[0008] A foremast main body, including an upper mast body and a lower mast body. A support standing rigging is connected between the upper mast body and the windshield. The lower mast body is connected to the top of the windshield, and the bottom side of the lower mast body extends obliquely forward to the deck to form a diversion inclined plane. The lower mast body and the windshield jointly enclose a closed enclosure, and the enclosure is used to accommodate signal equipment.

[0009] Preferably, two support standing riggings are provided, and the two support standing riggings are symmetrically arranged on both sides of the foremast main body and form a triangular layout with the foremast main body.

[0010] Preferably, a support platform is provided at the bottom of the circular house, and load-bearing columns are provided between the support platform and the deck.

[0011] Preferably, a plurality of reinforcing beams are provided on the windshield along its height direction, and the plurality of reinforcing beams are arranged at intervals along the width direction of the windshield.

[0012] Preferably, the cross-section of the foremast main body in the horizontal direction is semicircular, and the arc part is located on the side close to the front of the deck.

[0013] Preferably, the height of the windshield gradually increases from the middle to both sides.

[0014] Preferably, an accommodation space is provided inside the upper mast body, a first connecting door communicating with the accommodation space is provided on the side wall of the upper mast body, an operation platform is provided on the outer periphery of the upper mast body, and the operation platform communicates with the first connecting door.

[0015] Preferably, a second connecting door is provided on the side wall of the circular house, and a first walking staircase is provided between the deck and the second connecting door; a second walking staircase is provided between the inside of the circular house and the first connecting door.

[0016] Preferably, a weathertight door is provided on the first connecting door for opening or closing the accommodation space; a weathertight door is provided on the second connecting door for opening or closing the circular house.

[0017] On the other hand, the present invention also provides a container ship, including a hull, and the hull is configured with the above-mentioned foremast structure.

[0018] Advantages of the present invention:

[0019] The foremast structure proposed by the present invention has a windshield with a curved surface structure arranged at the front of the deck. This structure conforms to the principles of aerodynamics, can effectively guide the airflow, and reduce the wind resistance during ship navigation. The lower mast body is combined with the windshield, and its bottom side extends obliquely forward to the deck to form a flow guiding slope, so as to form a streamlined external shape design, effectively reducing the generation of air flow vortices, optimizing the air flow direction, and assisting in reducing wind resistance. The foremast structure is arranged at the front of the deck, which will not block the line of sight of mooring operations and meets the requirements of the current new mooring specifications. A closed enclosure is formed between the lower mast body and the windshield for accommodating signal equipment, shortening the travel distance for crew members to access the signal equipment, facilitating crew operations. At the same time, this integrated design avoids the problem of air flow vortices generated in the middle gap when the main body of the foremast and the windshield are independently designed, enhances the drag reduction effect of the windshield, and improves the overall navigation performance of the ship. In addition, a support and stabilizing cable is connected between the upper mast body and the windshield, effectively improving the strength of the mast body and at the same time improving the vibration problem of the mast body. To sum up, through the unique layout and structural design of the windshield and the main body of the foremast, the foremast structure effectively optimizes the ship's air flow environment, enhances the stability of the foremast, facilitates crew operations, and improves the ship's navigation performance and operation convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a side view of the foremast structure provided in Embodiment 1 of the present invention;

[0021] Figure 2 is a front view of the foremast structure provided in Embodiment 1 of the present invention;

[0022] Figure 3 is a top view of the foremast structure provided in Embodiment 1 of the present invention;

[0023] Figure 4 is a structural schematic diagram of the foremast structure provided in Embodiment 1 of the present invention.

[0024] In the figure:

[0025] 100, deck;

[0026] 1, windshield; 11, strengthening beam; 12, first hole cover; 13, second hole cover;

[0027] 2, main body of foremast; 21, upper mast body; 211, first connection door; 212, operation platform; 22, lower mast body; 221, flow guiding slope; 23, support and stabilizing cable; 24, enclosure; 241, second connection door; 25, support platform; 26, bearing pillar; 27, first walking staircase; 28, second walking staircase;

[0028] 3, signal equipment; 4, eye loop. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0032] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0033] Embodiment 1

[0034] Referring to Figures 1 to 4 , the foremast structure provided by the embodiment of the present invention includes a windshield 1 and a foremast main body 2. Among them, the windshield 1 is a curved surface structure provided at the front part of the deck 100; the foremast main body 2 includes an upper mast body 21 and a lower mast body 22. A support stay 23 is connected between the upper mast body 21 and the windshield 1. The lower mast body 22 is connected to the top of the windshield 1, and the bottom side of the lower mast body 22 extends obliquely forward to the deck 100 to form a flow guiding inclined surface 221; the lower mast body 22 and the windshield 1 jointly enclose a closed enclosure 24, and the enclosure 24 is used to accommodate the signal device 3.

[0035] The foremast structure proposed by the present invention has a windshield 1 with a curved surface structure arranged at the front of the deck 100. This structure conforms to the principles of aerodynamics, can effectively guide the airflow, and reduce the wind resistance during ship navigation. The lower mast body 22 is combined with the windshield 1, and its bottom side extends obliquely forward to the deck 100 to form a diversion inclined plane 221, so as to form a streamlined external shape design, effectively reducing the generation of airflow vortices, optimizing the airflow direction, and assisting in reducing wind resistance. The foremast structure is arranged at the front of the deck 100, which will not block the line of sight for mooring operations and meets the requirements of current new mooring specifications. A closed enclosure 24 is formed between the lower mast body 22 and the windshield 1 for accommodating the signal equipment 3, shortening the travel distance for the crew to access the signal equipment 3, facilitating the crew's operations. At the same time, this integrated design avoids the problem of airflow vortices generated in the intermediate gap when the foremast main body 2 and the windshield 1 are independently designed, enhances the drag reduction effect of the windshield 1, and improves the overall navigation performance of the ship. In addition, a support stay 23 is connected between the upper mast body 21 and the windshield 1, effectively improving the strength of the mast body and at the same time improving the mast vibration problem. In summary, through the unique layout and structural design of the windshield 1 and the foremast main body 2, the foremast structure effectively optimizes the ship's airflow environment, enhances the stability of the foremast, facilitates the crew's operations, and improves the ship's navigation performance and operation convenience.

[0036] The specific structure of the foremast structure will be described below.

[0037] The windshield 1 is a plate-frame steel structure, and its overall shape is a streamlined curved surface structure that protrudes forward and concaves backward, used to reduce the wind resistance suffered by the ship during navigation. The front end of the windshield 1 is arc-shaped with a relatively round curvature, enabling the airflow to smoothly transition when contacting the windshield 1, reducing the impact and turbulence of the airflow.

[0038] The height of the windshield 1 gradually increases from the middle to both sides, enabling a more reasonable airflow distribution when the airflow passes through the windshield 1. The relatively lower middle part and the gradually increasing height on both sides guide the airflow to flow orderly along the surface of the windshield 1, reducing the disorder and separation of the airflow at the edges, effectively reducing air resistance, and improving the aerodynamic performance of the ship during navigation.

[0039] Specifically, a plurality of strengthening beams 11 are arranged along the height direction of the windshield 1 itself. The plurality of strengthening beams 11 are spaced apart along the width direction of the windshield 1. The setting of the strengthening beams 11 can effectively disperse external forces, prevent the windshield 1 from deforming or being damaged due to uneven stress, and optimize the overall stability of the windshield 1.

[0040] In this embodiment, two strengthening beams 11 are provided, located at the middle position of the back of the windshield 1. In other embodiments, it can also be adaptively selected according to actual situations and will not be limited here.

[0041] At the same time, a plurality of crisscross ribs are arranged inside the windshield 1, and the ribs are distributed between the reinforcing beams 11, so as to further strengthen the structural rigidity of the windshield 1. The crisscross ribs form a grid structure, which, on the one hand, shares the pressure borne by the reinforcing beams 11, and, on the other hand, provides more uniform support for the windshield 1, ensuring that the windshield 1 can maintain its shape under different stress conditions and stably play the function of guiding wind and reducing drag.

[0042] In addition, the top of the windshield 1 is tilted backward, and the connection part with the lower mast 22 gradually becomes thinner to reduce the air resistance at the connection. The two side edges of the windshield 1 are slightly gathered toward the hull, forming a certain angle, which helps to converge the airflow on both sides to the middle and reduce the interference of the lateral airflow on the navigation of the ship.

[0043] A protruding mounting edge is designed at the connection portion between the windshield 1 and the deck 100, on which a plurality of mounting holes are evenly distributed. The windshield 1 is firmly fixed to a preset mounting base at the front end of the deck 100 by bolts, ensuring a firm and reliable connection to meet the use requirements of the ship under various navigation conditions.

[0044] The windshield 1 is welded to the lower mast 22, thereby improving the stability of the structure. The connection between the windshield 1 and the lower mast 22 is an arc transition, and the outer surface is smoothly connected, which can avoid stress concentration, enhance the structural strength of the connection part, and effectively improve the flow condition of the airflow at the connection between the two, reducing air resistance.

[0045] A supporting stabilizing cable 23 is connected between the upper mast body 21 and the windshield 1 to increase the stability of the foremast body 2 during navigation. Specifically, two supporting stabilizing cables 23 are provided, and the two supporting stabilizing cables 23 are symmetrically arranged on both sides of the foremast body 2, and are arranged in a triangular pattern with the foremast body 2. The supporting stabilizing cables 23 symmetrically distributed on both sides of the foremast body 2 can make the foremast body 2 more evenly stressed and balance the forces from different directions; the triangular pattern enables the supporting stabilizing cables 23, the upper mast body 21 and the windshield 1 to form a stable mechanical structure, which can better resist external force impact and enhance the reliability of the foremast structure during navigation.

[0046] In order to facilitate the fixed installation of the support stabilizing cable 23, the wind shield 1 has a hole at the eye ring 4, and is connected with a first hole cover 12 for closing the hole. When the support stabilizing cable 23 needs to be disassembled, the first hole cover 12 can be opened for operation.

[0047] The cross section of the foremast body 2 along the horizontal direction is semicircular, and the arc portion is located on the side close to the front of the deck 100. The semicircular cross section allows the airflow to flow through the foremast body 2 more smoothly, and compared with other shapes, it can effectively reduce the generation of airflow separation and turbulence, reduce air resistance, and thus help the ship to sail more efficiently and reduce energy consumption.

[0048] The lower mast body 22 and the windshield 1 jointly enclose a closed enclosure 24, and the enclosure 24 is used to accommodate the signal device 3. Specifically, a support platform 25 is provided at the bottom of the enclosure 24, and a load-bearing pillar 26 is provided between the support platform 25 and the deck 100. The support platform 25 provides a stable load-bearing foundation for the signal device 3 and the like placed inside the enclosure 24, making the equipment placement more stable. The load-bearing pillar 26 is provided between the support platform 25 and the deck 100, effectively sharing the weight of the enclosure 24 and the internal equipment and evenly transmitting it to the deck 100, enhancing the overall structural stability of the enclosure 24, effectively saving the space of the deck 100, increasing the structural strength, and at the same time improving the vibration problem of the front mast structure.

[0049] An orifice is provided on the side wall of the enclosure 24 near the front part of the deck 100, and a second orifice cover 13 is connected to the orifice for closing the orifice to facilitate the disassembly, assembly and maintenance of the signal device 3. The operator can open the second orifice cover 13 to disassemble and assemble the signal device 3 such as the Suez lamp.

[0050] The upper mast body 21 has an accommodation space inside. A first connecting door 211 communicating with the accommodation space is provided on the side wall of the upper mast body 21, and an operation platform 212 is provided on the outer periphery of the upper mast body 21. The operation platform 212 communicates with the first connecting door 211. The accommodation space inside the upper mast body 21 provides a dedicated area for storing various devices or tools such as the signal device 3 and the lighting device, effectively utilizing the internal space of the upper mast body 21 and improving the space utilization rate of the front mast structure. The first connecting door 211 is connected to the outer peripheral operation platform 212, facilitating the crew's operation. The crew can easily enter and exit the accommodation space through the first connecting door 211 on the operation platform 212 for subsequent operations.

[0051] Specifically, a second connecting door 241 is provided on the side wall of the enclosure 24, and a first walking staircase 27 is provided between the deck 100 and the second connecting door 241, facilitating the crew to directly enter the inside of the enclosure 24 from the deck 100. A second walking staircase 28 is provided between the inside of the enclosure 24 and the first connecting door 211, effectively connecting the accommodation space with the enclosure 24. Through the coordinated cooperation of the first walking staircase 27 and the second walking staircase 28, whether the crew enters the enclosure 24 from the deck 100 to pick up the signal device 3 or needs to go from the enclosure 24 to the accommodation space inside the upper mast body 21 for related operations, they can quickly and safely reach through these two walking staircases, improving the convenience and efficiency of the crew's operation.

[0052] It can be understood that the first walking staircase 27 and the second walking staircase 28 can be straight ladders, inclined ladders, spiral staircases, etc. The structure and layout thereof are not limited herein as long as the above functions can be achieved.

[0053] Preferably, a weathertight door is provided on the first connecting door 211 for opening or closing the accommodation space; a weathertight door is provided on the second connecting door 241 for opening or closing the enclosed house 24. The weathertight door can effectively cope with the harsh weather during ship navigation. The weathertight door can be tightly closed to enclose the accommodation space of the upper mast 21 and the enclosed house 24, prevent rainwater from seeping in, avoid damage to the equipment and tools stored therein due to moisture, ensure the normal operation of key equipment such as the signal equipment 3 and lighting equipment, and guarantee the safety of ship navigation.

[0054] Wherein, a sealing ring is provided inside the weathertight door, thereby further improving its sealing performance.

[0055] Embodiment 2

[0056] The embodiment of the present invention also provides a container ship, including a hull, and the hull is configured with the front mast structure provided in Embodiment 1.

[0057] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, there are various changes and modifications to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A foremast structure, characterized in that: include: A windshield (1), wherein the windshield (1) is a curved structure arranged at the front of the deck (100); The foremast body (2) comprises an upper mast body (21) and a lower mast body (22), wherein a supporting stabilizing rope (23) is connected between the upper mast body (21) and the windshield (1), the lower mast body (22) is connected to the top of the windshield (1), and the bottom side of the lower mast body (22) extends obliquely forward of the deck (100) to form a diversion slope (221); the lower mast body (22) and the windshield (1) are jointly enclosed to form a closed enclosure (24), and the enclosure (24) is used to accommodate signal equipment (3).

2. The foremast structure according to claim 1, characterized in that: Two supporting stabilizing cables (23) are provided, and the two supporting stabilizing cables (23) are symmetrically arranged on both sides of the foremast body (2) and are arranged in a triangle with the foremast body (2).

3. The foremast structure according to claim 1, characterized in that: A supporting platform (25) is provided at the bottom of the enclosure (24), and a bearing pillar (26) is provided between the supporting platform (25) and the deck (100).

4. The foremast structure according to claim 1, characterized in that: A plurality of reinforcing beams (11) are arranged on the windshield (1) along its height direction, and the plurality of reinforcing beams (11) are arranged at intervals along the width direction of the windshield (1).

5. The foremast structure according to claim 1, characterized in that: The cross section of the foremast body (2) along the horizontal direction is semicircular, and the arc-shaped portion is located on a side close to the front of the deck (100).

6. The foremast structure according to claim 1, characterized in that: The height of the wind shield (1) gradually increases from the middle to both sides.

7. The foremast structure according to claim 1, characterized in that: The upper mast body (21) has an accommodation space inside, and a first connecting door (211) connected to the accommodation space is provided on the side wall of the upper mast body (21). An operating platform (212) is provided on the outer periphery of the upper mast body (21), and the operating platform (212) is connected to the first connecting door (211).

8. The foremast structure according to claim 7, characterized in that: A second connecting door (241) is provided on the side wall of the enclosure (24); a first walking staircase (27) is provided between the deck (100) and the second connecting door (241); and a second walking staircase (28) is provided between the interior of the enclosure (24) and the first connecting door (211).

9. The foremast structure according to claim 8, characterized in that: The first connecting door (211) is provided with a weathertight door for opening or closing the accommodating space; the second connecting door (241) is provided with the weathertight door for opening or closing the enclosure (24).

10. A container ship, characterized in that: It comprises a hull, wherein the hull is provided with the foremast structure according to any one of claims 1-9.

Images