Protective device, side thrust system and ship

Abstract

The invention belongs to the technical field of ships, and discloses a protection device, a side thrust system and a ship. The protection device comprises a hydraulic assembly, a transmission connection assembly and a plurality of movable blade assemblies which are parallel to one another and can synchronously rotate. The movable blade assembly is arranged in an end opening of a mounting channel of a bow of a ship. The hydraulic assembly is installed on the inner wall of the end opening. The transmission connecting assembly is in transmission connection between the hydraulic assembly and the movable blade assemblies, and the hydraulic assembly can drive the movable blade assemblies to rotate and make contact with one another through the transmission connecting assembly so as to seal the end opening or drive the movable blade assemblies to rotate and be separated from one another so as to open the end opening. The protection device can be opened and closed, foreign matter can be effectively prevented from entering the side thrust system, the influence of the side thrust system in a non-working state on the streamline of a ship body can be improved, and resistance borne by the ship in the sailing process is reduced.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and in particular to a protective device, a side thrust system, and a ship. Background Technology

[0002] Currently, many ships are equipped with bow thrusters, which are divided into bow thrusters and stern thrusters, with the bow thruster being more commonly used. This bow thruster is typically installed in a cylindrical tunnel below the waterline across the bow, housing a propeller. The thrust generated by the propeller's jet changes the ship's course. To prevent foreign objects from entering the thruster system, protective devices are usually installed at both ends of the cylindrical tunnel. Existing protective devices are generally fixed mesh structures formed by welding plates.

[0003] The aforementioned fixed mesh structure has the following drawbacks: First, it disrupts the original streamlined design of the hull, generating significant turbulence during high-speed navigation, increasing resistance and severely hindering speed increases, thus leading to increased energy consumption. Second, during navigation, the fixed mesh structure generates numerous turbulent bubbles, increasing corrosion of the hull and thrusters. Finally, the fixed mesh structure can only block larger debris; smaller debris can still enter the cylindrical tunnel, failing to effectively protect the propeller within. During navigation, smaller debris accumulates inside the cylindrical tunnel, affecting the normal operation of the thruster system.

[0004] Therefore, there is an urgent need for a protective device, a side thrust system, and a vessel to solve the above problems. Summary of the Invention

[0005] According to one aspect of the present invention, the object is to provide a protective device that can be opened and closed, effectively preventing foreign objects from entering the side thrust system, and improving the impact of the side thrust system on the hull streamline when it is not in operation, thereby reducing the resistance encountered by the ship during navigation.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Protective devices, including:

[0008] Multiple parallel, synchronously rotating movable blade assemblies are disposed in the end opening of the mounting channel at the bow of the ship;

[0009] A hydraulic assembly, the hydraulic assembly being mounted on the inner wall of the end opening;

[0010] A transmission connection assembly is provided, which is tractively connected between the hydraulic assembly and the plurality of movable blade assemblies. The hydraulic assembly can drive the plurality of movable blade assemblies to rotate and contact each other through the transmission connection assembly to seal the end opening, or drive the plurality of movable blade assemblies to rotate and separate from each other to open the end opening.

[0011] As a preferred embodiment of the protective device provided by the present invention, the movable blade assembly includes a blade body and a rotating shaft structure. The rotating shaft structure is provided at both ends of the blade body, and the two rotating shaft structures are respectively provided on opposite sides of the end opening. The rotating shaft structure is capable of rotating around its own axis.

[0012] As a preferred embodiment of the protective device provided by the present invention, the movable blade assembly further includes a water-blocking structure. The water-blocking structure is respectively provided on opposite sides of the blade body. When multiple movable blade assemblies rotate and come into contact with each other, the water-blocking structures of adjacent movable blade assemblies overlap each other.

[0013] As a preferred embodiment of the protective device provided by the present invention, the water-blocking structure and the blade body are arranged at an angle to each other.

[0014] As a preferred embodiment of the protective device provided by the present invention, the protective device further includes a first limiting structure and a second limiting structure, the first limiting structure and the second limiting structure being respectively disposed on opposite sides within the end opening, and the transmission connection assembly being able to move between the first limiting structure and the second limiting structure during the rotation of the movable blade assembly.

[0015] As a preferred embodiment of the protective device provided by the present invention, the transmission connection assembly includes a connecting frame and a connecting rod. The plurality of movable blade assemblies are all connected to the connecting frame. The connecting rod is connected to the connecting frame and to the hydraulic assembly. The hydraulic assembly can drive the connecting rod to move so as to drive the movable blade assembly to rotate.

[0016] As a preferred embodiment of the protective device provided by the present invention, the protective device further includes an annular frame, the movable blade assembly is connected to the inner wall of the end opening through the annular frame, and a sealing structure is provided between the annular frame and the inner wall of the end opening.

[0017] According to another aspect of the invention, an object is to provide a side thrust system comprising a mounting channel, a propeller, and a protective device as described in any of the above embodiments, wherein the mounting channel is opened at the bow of a vessel and extends across the bow, the propeller is disposed in the mounting channel, and the protective device is disposed within an end opening of the mounting channel.

[0018] As a preferred embodiment of the side-pushing system provided by the present invention, the inner diameter of the end opening gradually increases along the direction away from the interior of the mounting channel.

[0019] According to another aspect of the invention, the object is to provide a vessel comprising the side thrust system described in any of the above embodiments.

[0020] The beneficial effects of this invention are:

[0021] The protective device provided by this invention includes a hydraulic assembly, a transmission connection assembly, and multiple parallel, synchronously rotating movable blade assemblies. The movable blade assemblies are disposed in the end opening of the mounting channel at the bow of the ship. The hydraulic assembly is installed on the inner wall of the end opening. The transmission connection assembly is drivingly connected between the hydraulic assembly and the multiple movable blade assemblies. The hydraulic assembly can drive the multiple movable blade assemblies to rotate and contact each other through the transmission connection assembly to seal the end opening, or drive the multiple movable blade assemblies to rotate and separate from each other to open the end opening. The switching between the open and closed states of the movable blade assemblies is as follows: When the thruster system is in operation, the hydraulic assembly controls and drives the movable blade assemblies through the transmission connection assembly to rotate them into the open state, allowing the thruster system to propel normally. When the thruster system is not in operation, the hydraulic assembly controls and drives the movable blade assemblies through the transmission connection assembly to rotate them into the closed state. This effectively prevents foreign objects from entering the thruster system and improves the impact of the thruster system on the hull streamline when not in operation, reducing the resistance encountered by the ship during navigation. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the protective device provided in an embodiment of the present invention in the open state;

[0024] Figure 2 yes Figure 1 Sectional view along the middle AA direction;

[0025] Figure 3 This is a schematic diagram of the protective device provided in an embodiment of the present invention in a closed state;

[0026] Figure 4 yes Figure 3 Sectional view along the BB direction.

[0027] In the picture:

[0028] 10. Installation channel; 11. End opening;

[0029] 100. Movable blade assembly; 110. Blade body; 120. Shaft structure; 130. Water-blocking structure;

[0030] 200. Hydraulic components;

[0031] 300. Transmission connection assembly; 310. Connecting frame; 311. Support body; 312. Rotating connector; 320. Connecting rod;

[0032] 400. First limiting structure;

[0033] 500. Second limiting structure;

[0034] 600. Sealed structure;

[0035] 700. End water-blocking component;

[0036] 800, Circular Frame. Detailed Implementation

[0037] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connect," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0045] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 only used to explain the present invention, and should not be construed as limiting the present invention.

[0046] This embodiment provides a protective device, a side thrust system, and a vessel. The vessel includes the aforementioned side thrust system.

[0047] Figure 1 This diagram illustrates the protective device provided in an embodiment of the present invention in an open state; Figure 2 Show Figure 1 Sectional view along the middle AA direction; Figure 3 This diagram illustrates the protective device provided in an embodiment of the present invention in a closed state; Figure 4 Show Figure 3 Sectional view along the BB direction. (Refer to...) Figures 1-4 The side thruster system includes a mounting channel 10, a propeller (not shown), and a protective device provided in this embodiment. The mounting channel 10 is located at the bow of the vessel and extends across the bow. The propeller is disposed in the mounting channel 10 to provide steering propulsion for the vessel. The protective device is disposed within the end opening 11 of the mounting channel 10.

[0048] Specifically, the inner diameter of the end opening 11 gradually increases in the direction away from the interior of the installation channel 10. That is to say, the end opening 11 is flared, which facilitates the propulsion generated by the propeller of the side thrust system to push the water outside the end opening 11, thereby achieving the response speed and effect of the ship's side thrust.

[0049] The protective device includes a hydraulic assembly 200, a transmission connection assembly 300, and multiple parallel and synchronously rotating movable blade assemblies 100. The movable blade assemblies 100 are disposed in the end opening 11 of the mounting channel 10 at the bow of the ship. The hydraulic assembly 200 is mounted on the inner wall of the end opening 11. The transmission connection assembly 300 is drively connected between the hydraulic assembly 200 and the multiple movable blade assemblies 100. The hydraulic assembly 200 can drive the multiple movable blade assemblies 100 to rotate and contact each other through the transmission connection assembly 300 to seal the end opening 11, or drive the multiple movable blade assemblies 100 to rotate and separate from each other to open the end opening 11.

[0050] The aforementioned movable blade assembly 100 switches between open and closed states. When the thruster system is in operation, the hydraulic assembly 200 controls the movement of the movable blade assembly 100 to the open state via the transmission connection assembly 300, allowing the thruster system to propel normally. When the thruster system is not in operation, the hydraulic assembly 200 controls the movement of the movable blade assembly 100 to the closed state via the transmission connection assembly 300. This effectively prevents foreign objects from entering the thruster system and improves the impact on the hull's streamline when the thruster system is not in operation, reducing the drag experienced by the ship during navigation.

[0051] Specifically, the protective device also includes an annular frame 800, through which the movable blade assembly 100 is mounted to the inner wall of the end opening 11. A sealing structure 600 is provided between the annular frame 800 and the inner wall of the end opening 11. The sealing structure 600 can be made of rubber or silicone, and is specifically annular in shape, which can ensure the sealing performance and installation reliability between the annular frame 800 and the end opening 11.

[0052] More specifically, the movable blade assembly 100 includes a blade body 110 and a rotating shaft structure 120. The rotating shaft structure 120 is provided at both ends of the blade body 110, and the two rotating shaft structures 120 are respectively provided on opposite sides of the annular frame 800. The rotating shaft structure 120 can rotate around its own axis, thereby driving the blade body 110 to rotate.

[0053] More specifically, the movable blade assembly 100 also includes a water-blocking structure 130. The water-blocking structure 130 is provided on opposite sides of the blade body 110. When multiple movable blade assemblies 100 rotate and come into contact with each other, the water-blocking structures 130 of adjacent movable blade assemblies 100 overlap. Through the overlap of the water-blocking structures 130, the reliability of blocking the end opening 11 when the movable blade assembly 100 is in the closed state can be further improved, preventing impurities from entering the installation channel 10 and reducing the generation of air bubbles.

[0054] Preferably, the water-blocking structure 130 is angled relative to the blade body 110. Furthermore, the two water-blocking structures 130 located on opposite sides of the same blade body 110 have opposite bending directions to the blade body 110. In this embodiment, the water-blocking structure 130 is specifically set at an obtuse angle to the blade body 110. Through this arrangement, adjacent water-blocking structures 130 can form a stable and reliable overlap, improving the reliability of the movable blade assembly 100 in the closed state.

[0055] More specifically, end water-blocking components 700 are respectively provided on opposite sides of the annular frame 800. When the movable blade assembly 100 is in the closed state, the water-blocking structure 130 located at the end can close and overlap with the end water-blocking component 700, ensuring the reliability of the closure.

[0056] Continue to refer to Figure 2 and Figure 4 The transmission connection assembly 300 includes a connecting frame 310 and a connecting rod 320. Multiple movable blade assemblies 100 are connected to the connecting frame 310. The connecting rod 320 is connected to the connecting frame 310 and to the telescopic output end of the hydraulic assembly 200. The hydraulic assembly 200 can drive the connecting rod 320 to move, thereby driving the movable blade assembly 100 to rotate.

[0057] Specifically, the connecting frame 310 includes a support body 311 and rotating connecting members 312. Multiple rotating connecting members 312 are integrally formed at an angle and connected to the support body 311, and are movably connected to their respective blade bodies 110. When the connecting frame 310 moves under the drive of the connecting rod 320, the rotating connecting member 312 can swing and move relative to the blade body 110, thereby driving the blade body 110 to rotate around the rotating shaft structure 120 by a certain angle.

[0058] More specifically, the driving force of the hydraulic component 200 is adjustable, thereby regulating the driving force according to the water pressure. The driving force of the hydraulic component 200 can be specifically controlled by a hydraulic drive control module integrated into the ship's control unit.

[0059] More specifically, the protective device also includes a first limiting structure 400 and a second limiting structure 500. The first limiting structure 400 and the second limiting structure 500 are respectively disposed on opposite sides within the end opening 11. During the rotation of the movable blade assembly 100, the transmission connection assembly 300 can move between the first limiting structure 400 and the second limiting structure 500. The first limiting structure 400 is specifically located within the annular frame 800 and is disposed relatively far from the hydraulic assembly 200. The second limiting structure 500 is located within the annular frame 800 and is disposed relatively close to the hydraulic assembly 200.

[0060] Reference Figure 2 When the movable blade assembly 100 is in the open state, the connecting frame 310 abuts against the second limiting structure 500; when the movable blade assembly 100 is in the closed state, the connecting frame 310 abuts against the first limiting structure 400. The first limiting structure 400 and the second limiting structure 500 can respectively limit the connecting frame 310, preventing it from moving beyond a reasonable range.

[0061] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A protective device, characterized in that, include: Multiple parallel and synchronously rotating movable blade assemblies (100) are disposed in the end opening (11) of the mounting channel (10) at the bow of the ship; A hydraulic assembly (200) is mounted on the inner wall of the end opening (11); A transmission connection assembly (300) is transmissionally connected between the hydraulic assembly (200) and the plurality of movable blade assemblies (100). The hydraulic assembly (200) can drive the plurality of movable blade assemblies (100) to rotate and contact each other through the transmission connection assembly (300) to cover the end opening (11), or drive the plurality of movable blade assemblies (100) to rotate and separate from each other to open the end opening (11).

2. The protective device according to claim 1, characterized in that, The movable blade assembly (100) includes a blade body (110) and a rotating shaft structure (120). The rotating shaft structure (120) is provided at both ends of the blade body (110). The two rotating shaft structures (120) are respectively provided on opposite sides of the end opening (11). The rotating shaft structure (120) can rotate around its own axis.

3. The protective device according to claim 2, characterized in that, The movable blade assembly (100) also includes a water-blocking structure (130). The water-blocking structure (130) is provided on opposite sides of the blade body (110). When multiple movable blade assemblies (100) rotate and come into contact with each other, the water-blocking structures (130) of adjacent movable blade assemblies (100) overlap each other.

4. The protective device according to claim 3, characterized in that, The water-blocking structure (130) and the blade body (110) are arranged at an angle to each other.

5. The protective device according to claim 1, characterized in that, The protective device further includes a first limiting structure (400) and a second limiting structure (500), which are respectively disposed on opposite sides of the end opening (11). During the rotation of the movable blade assembly (100), the transmission connection assembly (300) can move between the first limiting structure (400) and the second limiting structure (500).

6. The protective device according to claim 1, characterized in that, The transmission connection assembly (300) includes a connecting frame (310) and a connecting rod (320). Multiple movable blade assemblies (100) are connected to the connecting frame (310). The connecting rod (320) is connected to the connecting frame (310) and to the hydraulic assembly (200). The hydraulic assembly (200) can drive the connecting rod (320) to move, thereby driving the movable blade assembly (100) to rotate.

7. The protective device according to any one of claims 1-6, characterized in that, The protective device also includes an annular frame (800), the movable blade assembly (100) is connected to the inner wall of the end opening (11) through the annular frame (800), and a sealing structure (600) is provided between the annular frame (800) and the inner wall of the end opening (11).

8. A side thrust system, characterized in that, The device includes an installation channel (10), a propeller, and a protective device as described in any one of claims 1-7, wherein the installation channel (10) is located at the bow of the vessel and extends across the bow, the propeller is disposed in the installation channel (10), and the protective device is disposed in the end opening (11) of the installation channel (10).

9. The side thrust system according to claim 8, characterized in that, The inner diameter of the end opening (11) gradually increases in the direction away from the interior of the mounting channel (10).

10. A ship, characterized in that, Includes the side thrust system as described in claim 8 or 9.

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