Water baffle, water baffle device and ship

Abstract

The application discloses a water blocking seat, a water blocking device and a ship, wherein the water blocking seat comprises a water blocking plate, a first flow guide plate and a second flow guide plate; the water blocking plate has a flow guide surface extending along a first circular arc track; the first flow guide plate and the second flow guide plate are arranged at intervals along the first circular arc track; one end of the first flow guide plate and one end of the second flow guide plate are connected with the water blocking plate; the other end of the first flow guide plate and the other end of the second flow guide plate extend in a direction away from the center of the flow guide surface, and the distance between the first flow guide plate and the second flow guide plate gradually increases. The water blocking seat can play a flow guiding role, reduce the impact force of water flow and avoid violent shaking or vibration of the ship.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and in particular to a water-blocking seat, a water-blocking device, and a ship. Background Technology

[0002] When a ship needs to have some underwater scientific research capabilities, it is necessary to consider the impact of water flow on underwater working equipment or deck platforms when the ship is stationary or moving. Currently, ships generally use underwater water-blocking devices to block the impact of water flow. These water-blocking devices are mostly I-shaped or planar structures.

[0003] While existing water-blocking devices can block the impact of low water flow, when the water flow impact force is large, it will generate a large impact force, causing the ship to roll or vibrate violently. For example, when the propeller is rotating at high speed, the strong water propulsion force generated by the propeller acts on the water-blocking device, causing the ship to roll and vibrate, resulting in structural damage. Summary of the Invention

[0004] One objective of this invention is to provide a water-blocking seat that can guide the flow, reduce the impact of the water flow, and prevent the ship from shaking or vibrating violently.

[0005] Another objective of this invention is to provide a water-blocking device and a ship, which can reduce the impact of water flow on the ship by acting as a guide, thereby preventing the ship from shaking or vibrating violently.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] On one hand, a water-blocking seat is provided, including a water-blocking plate, a first guide plate, and a second guide plate; the water-blocking plate has a guide surface extending along a first arc trajectory, the first guide plate and the second guide plate are arranged at intervals along the first arc trajectory, one end of the first guide plate and one end of the second guide plate are both connected to the water-blocking plate, and the other end of the first guide plate and the other end of the second guide plate extend in a direction away from the center of the guide surface, and the distance between the first guide plate and the second guide plate gradually increases.

[0008] Optionally, the water-blocking seat further includes a first reinforcing plate; the first reinforcing plate is U-shaped, and both ends of the first reinforcing plate are connected to the flow guiding surface.

[0009] Optionally, the water-blocking seat further includes a third guide plate; there are multiple first reinforcing plates, which are arranged at intervals along the first arc trajectory, and grooves are formed between adjacent first reinforcing plates. At least some of the adjacent first reinforcing plates are connected by the third guide plate, and the third guide plate covers the opening of the groove.

[0010] Optionally, the water-blocking seat further includes a second reinforcing plate; the first reinforcing plate and the water-blocking plate together form a through hole, and the second reinforcing plate is installed in the through hole and covers the through hole.

[0011] Optionally, the baffle plate also has a mounting surface that is opposite to the flow guiding surface, and a connecting rib is provided on the mounting surface.

[0012] Optionally, the mounting surface extends along the second arc trajectory, the center of the mounting surface coincides with the center of the guide surface, and there are multiple connecting ribs arranged at intervals along the second arc trajectory.

[0013] On the other hand, a water-blocking device is provided, including an airbag and the aforementioned water-blocking seat; the water-blocking plate also has a mounting surface extending along a second arc trajectory, and the airbag is connected to the mounting surface.

[0014] In another aspect, a vessel is provided, comprising a hull, a propeller rotatably mounted on the hull, and the aforementioned water-blocking device; the water-blocking device is mounted on the hull, and the water-blocking seat and the airbag are arranged sequentially in a direction away from the propeller.

[0015] Optionally, the water-blocking seat and the airbag are arranged sequentially along a first direction, which is parallel to the axis of the propeller.

[0016] Optionally, there are multiple water-blocking devices, which are arranged at radial intervals along the propeller.

[0017] The beneficial effects of this invention are as follows: This water-blocking seat guides the water flow to the first and second guide plates through the guide surface of the water-blocking plate. By changing the impact direction of the water flow through the first and second guide plates, the impact force of the water flow on the water-blocking seat is reduced. Simultaneously, the first and second guide plates prevent the water flow from flowing along the arc direction of the water-blocking plate, avoiding the water flow from generating vortex vibrations due to flow around it. Therefore, when the water flow impacts the water-blocking seat, it can prevent the hull from swaying and vibrating. Furthermore, the water-blocking seat and the airbag are installed together on the hull to form a water-blocking device. Through the combined buffering effect of the water-blocking seat and the airbag, the hull swaying and vibration are prevented. By installing the above-mentioned water-blocking device, this vessel avoids structural damage caused by water flow impact. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the water-retaining base.

[0020] Figure 2 This is a structural fracture view of the water-retaining base;

[0021] Figure 3 This is a side view of the water-retaining base;

[0022] Figure 4 This is a rear view of the water-retaining base;

[0023] Figure 5 A top view illustrating the working principle of the water-blocking base;

[0024] Figure 6 This is a top view of the water-retaining base;

[0025] Figure 7 This is a top view of the water-blocking device;

[0026] Figure 8 This is an exploded view of the water-blocking device;

[0027] Figure 9 This is a schematic diagram of the water-blocking device installation.

[0028] Figure 10 for Figure 9 A schematic diagram of the structure in the AA direction.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Water-blocking device;

[0031] 11. Water baffle; 12. First guide plate; 13. Second guide plate; 14. First reinforcing plate; 15. Third guide plate; 16. Groove; 17. Second reinforcing plate; 18. Connecting rib; 19. Airbag; 20. Hull; 21. Propeller;

[0032] 111. Guide surface; 112. Mounting surface; 113. First installation channel; 114. Second installation channel; 115. Inlet; 116. Anti-detachment cavity;

[0033] 191. Main capsule; 192. First lateral capsule; 193. Second lateral capsule; 194. Anti-detachment protrusion;

[0034] 201. Deck platform; 202. Elevating deck. Detailed Implementation

[0035] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "fixed," "linked," "communicated," "abutting," "clamping," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] 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.

[0038] In the description herein, it should be understood that the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings, and are used only for ease of description and simplification of operation. They 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, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0041] Unless otherwise stated or defined, the term "and / or" as used in this invention includes any and all combinations of one or more of the associated listed items.

[0042] For ease of description, unless otherwise stated, the terms "up" and "down" in the following text refer to the same direction as "top" and "bottom". Figure 1 Its vertical direction is consistent with the horizontal direction mentioned below. Figure 7 Its left-right direction is consistent, and the front-back direction mentioned below is consistent with... Figure 7 Its vertical direction is consistent.

[0043] This invention can be applied to various types of vessels, particularly research vessels. Research vessels are used for marine scientific research, carrying a wide variety of scientific research equipment. Some of this equipment needs to be placed under the hull for sampling and detection. Due to the complex currents under the hull, and the water flow generated by the propeller during navigation, these currents can impact the equipment, affecting sampling and detection work and potentially damaging it. Furthermore, some research vessels have laboratories for convenient and timely sample testing. If the hull is shaken or vibrated by water currents, it can cause sample leakage, difficulty in adding experimental samples or reagents, and other problems, affecting the accuracy of experiments and results. Therefore, research vessels, compared to other vessels, require greater resistance to shock and swaying.

[0044] like Figures 1 to 6 As shown, a water-blocking seat includes a water-blocking plate 11, a first guide plate 12, and a second guide plate 13. The water-blocking plate 11 has a guide surface 111 extending along a first arc trajectory; specifically, the guide surface 111 is a convex arc surface. The first guide plate 12 and the second guide plate 13 are arranged at intervals along the first arc trajectory. One end of the first guide plate 12 and one end of the second guide plate 13 are both connected to the water-blocking plate 11, and the first guide plate 12 and the second guide plate 13 are located at opposite ends of the water-blocking plate 11. The other ends of the first guide plate 12 and the second guide plate 13 extend in a direction away from the center of the guide surface 111, and the distance between the first guide plate 12 and the second guide plate 13 gradually increases. The other ends of the first guide plate 12 and the second guide plate 13 are both connected to the guide surface 111 and extend in the convex direction of the guide surface 111. Figure 5When the water flow impacts the baffle seat, it also impacts the baffle plate 11. Guided and diverted by the guide surface 111, the water flows along the guide surface 111 to both sides of the baffle plate 11, preventing the water from impacting the baffle plate 11 backward and then flowing forward under the action of the reaction force, thus avoiding a counter-current with the backward impacting water flow and causing shaking and vibration. After the water flow flows along the guide surface 111 to both sides of the baffle plate 11, the first guide plate 12 and the second guide plate 13 guide the water flow along the extension direction of the first guide plate 12 and the second guide plate 13, and finally pass through the entire baffle seat from the outside of the first guide plate 12 and the second guide plate 13. The first guide plate 12 and the second guide plate 13 can prevent the water flow from directly passing through the baffle plate 11 along the guide surface 111, thereby avoiding the water flow flowing to both sides along the first arc trajectory and then generating a vortex vibration behind the baffle plate 11. The fluid dynamics principle that vortices appear on both sides of a blunt object when water flows around it will not be elaborated here.

[0045] It is understandable that the baffle plate 11, the first guide plate 12, and the second guide plate 13 are integrally cast parts, which can withstand greater impact forces and adapt to various turbulent water flow environments. The baffle plate 11, the first guide plate 12, and the second guide plate 13 are generally in an approximately M-shape, for example... Figure 5 The baffle plate 11, the first guide plate 12, and the second guide plate 13 are approximately inverted M-shaped. In addition, the guide surface 111 can also be a raised V-shaped surface, which guides the water flow to both sides of the baffle plate 11, and then guides it through the first guide plate 12 and the second guide plate 13 to prevent the water from flowing around the baffle plate, avoid vortex vibration, and thus prevent the hull 20 from shaking and vibrating when the baffle plate is installed on the hull 20.

[0046] Optionally, the radius of the guide surface 111 is 800 mm, and the central angle of the guide surface 111 is 70 degrees.

[0047] In some embodiments, a U-shaped reinforcing structure, approximately 5 meters in length, is added to the guide surface 111. Specifically, the water-blocking seat also includes a first reinforcing plate 14. The first reinforcing plate 14 is U-shaped, and both ends of the first reinforcing plate 14 are connected to the guide surface 111. The first reinforcing plate 14 is integrally formed with the water-blocking plate 11. The first reinforcing plate 14 can enhance the overall strength of the water-blocking seat, and its U-shape can reduce the overall material and weight of the water-blocking seat.

[0048] Optionally, the water-blocking seat also includes a third guide plate 15. Multiple first reinforcing plates 14 are arranged at intervals along a first arc trajectory, with grooves 16 formed between adjacent first reinforcing plates 14. The grooves 16 are vertical through-slots penetrating the water-blocking seat. At least some adjacent first reinforcing plates 14 are connected by the third guide plate 15, which covers the horizontal opening of the grooves 16. By covering the grooves 16 with the third guide plate 15, water can flow to both sides of the water-blocking plate 11.

[0049] It is understandable that the height of each first reinforcing plate 14 along the direction away from the center of the guide surface 111 gradually decreases from the central region of the guide surface 111 to the two sides of the guide surface 111. The two ends of the third guide plate 15 are respectively connected to the two first reinforcing plates 14, so that the third guide plate 15 can be set at an angle to enhance the guiding effect.

[0050] In some embodiments, the water-retaining seat further includes a second reinforcing plate 17. The first reinforcing plate 14 and the water-retaining plate 11 together form a through hole. To prevent the first reinforcing plate 14 from deforming due to water flow impact, the strength of the first reinforcing plate 14 is enhanced by the second reinforcing plate 17. The second reinforcing plate 17 is installed inside the through hole and covers the through hole. The outline of the second reinforcing plate 17 is the same as the outline of the through hole, and the edge of the second reinforcing plate 17 is connected to the inner wall of the through hole, thereby strengthening the overall structure of the first reinforcing plate 14.

[0051] Meanwhile, the through hole runs through the entire water baffle from top to bottom, and the upper and lower ends of the through hole are provided with second reinforcing plates 17, so that the inner wall of the through hole is sealed, preventing water from rushing into the through hole and generating turbulence when the water flows through the upper and lower ends of the water baffle, reducing the impact of the water flow on the water baffle, and thus preventing the hull 20 from swaying.

[0052] In some embodiments, the baffle plate 11 further has a mounting surface 112, which is opposite to the flow guiding surface 111. The mounting surface 112 is provided with a connecting rib 18. When the baffle plate 11 is installed on the hull 20, the connecting rib 18 is connected to the hull 20 and to the deck platform 201 or the lifting deck 202 of the deck platform 201. The connecting rib 18 can strengthen the connection between the baffle plate 11 and the hull 20, making the installation of the baffle plate more stable.

[0053] In some embodiments, the mounting surface 112 extends along the second arc trajectory, and the center of the mounting surface 112 coincides with the center of the guide surface 111. There are multiple connecting ribs 18 and they are spaced apart along the second arc trajectory to further strengthen the connection between the baffle plate 11 and the hull 20.

[0054] like Figure 1 and Figure 7As shown in the embodiment of this application, a water-blocking device 1 is also provided, which can be installed on the hull 20. The water-blocking device 1 includes an airbag 19 and the aforementioned water-blocking seat. The water-blocking plate 11 also has a mounting surface 112 extending along a second arc trajectory, and the airbag 19 is connected to the mounting surface 112. The mounting surface 112 is a concave arc surface, and the mounting surface 112 is parallel to the flow guiding surface 111. The outer side of the airbag 19 abuts against the mounting surface 112. Specifically, the airbag 19 abuts against the central region of the mounting surface 112. The distance between the first flow guiding plate 12 and the airbag 19 is equal to the distance between the second flow guiding plate 13 and the airbag 19. When the water flow directly hits the water-blocking seat, the impact force on the central region of the water-blocking plate 11 is the greatest. The airbag 19, located in the central region of the water-blocking plate 11 and connected to or abutting against the water-blocking plate 11, can buffer the impact force on the central region of the water-blocking plate 11 and improve the impact resistance of the central region of the water-blocking plate 11.

[0055] like Figure 8 As shown, in some embodiments, a first arrangement channel 113 and a second arrangement channel 114 are provided within the water-retaining seat. Both the first arrangement channel 113 and the second arrangement channel 114 have an inlet 115 formed on the mounting surface 112. The first arrangement channel 113 extends from the water-retaining plate 11 along the first guide plate 12, and the second arrangement channel 114 extends from the water-retaining plate 11 along the second guide plate 13. The first arrangement channel 113 and the second arrangement channel 114 are symmetrically distributed.

[0056] The airbag 19 includes a cylindrical main body 191, a first side body 192 communicating with the main body 191, and a second side body 193 communicating with the main body 191. The axis of the main body 191 is vertically arranged, and the outer circumferential side surface of the main body 191 abuts against the mounting surface 112. The first side body 192 and the second side body 193 are symmetrically arranged along the diameter of the main body 191.

[0057] When the airbag 19 is installed on the water-blocking seat, the first side airbag 192 is inserted into the first distribution channel 113 through an extension 115, and the second side airbag 193 is inserted into the second distribution channel 114 through another extension 115. The space between the first side airbag 192 and the first distribution channel 113 is filled with an elastic material, such as sponge, elastic silicone, or rubber. Under the compression of the elastic material, all the gas in the first side airbag 192 and the second side airbag 193 enters the main airbag 191, and the first side airbag 192 and the second side airbag 193 are in a flattened state, thus connecting the water-blocking seat and the airbag 19. When the water-blocking seat is impacted, the main bladder 191 is compressed by the impact, and the gas in the main bladder 191 enters the first side bladder 192 and the second side bladder 193. The first side bladder 192 and the second side bladder 193 expand and compress the elastic material. The greater the impact force of the water flow, the more stable the connection between the water-blocking seat and the air bladder 19, preventing relative movement or separation between the water-blocking seat and the air bladder 19, and avoiding affecting the water-blocking effect. At the same time, the first side bladder 192 and the second side bladder 193 extend into the first guide plate 12 and the second guide plate 13 respectively, thereby reducing the impact of the water flow on the first guide plate 12 and the second guide plate 13.

[0058] It is understood that one end of the first side bladder 192 and one end of the second side bladder 193 are connected to one end of the main bladder 191. The other end of the first side bladder 192 and the other end of the second side bladder 193 are provided with anti-detachment protrusions 194. The first distribution channel 113 and the second distribution channel 114 are provided with anti-detachment locking cavities 116 that engage with the anti-detachment protrusions 194.

[0059] Optionally, a pressure generator (not shown in the figure) is installed on the guide surface 111 of the water-blocking seat. When the water flow impacts the pressure generator, it generates an electric current. The anti-detachment protrusion 194 is an elastic membrane provided on the first side bladder 192 or the second side bladder 193. The elastic membrane encloses a liquid cavity filled with electrorheological fluid, which is electrically connected to the pressure generator. When the pressure generator generates current, the electrorheological fluid changes from a liquid to a solid state, thus engaging the anti-detachment protrusion 194 with the anti-detachment locking cavity 116, preventing the first side bladder 192 and the second side bladder 193 from separating from the water-blocking seat. When there is no water flow impact, the electrorheological fluid returns to a liquid state, facilitating the installation of the first side bladder 192 and the second side bladder 193 in the first arrangement channel 113 and the second arrangement channel 114, or their removal from the first arrangement channel 113 and the second arrangement channel 114, respectively, thus facilitating the assembly and disassembly of the water-blocking device 1.

[0060] like Figures 7 to 9As shown, this application embodiment also provides a ship, including a hull 20, a propeller 21 rotatably mounted on the hull 20, and the aforementioned water-blocking device 1. The hull 20 has a deck platform 201, and the water-blocking device 1 is installed on the deck platform 201 and located below the deck platform 201. The water-blocking seat and the airbag 19 are arranged sequentially in a direction away from the propeller 21. When the propeller 21 rotates at high speed, the water flow impacts the guide surface 111 of the water-blocking plate 11 from front to back. Under the guidance of the guide surface 111, the water flow is diverted to both sides of the water-blocking plate 11. The airbag 19 can provide a forward reaction force to buffer part of the impact force of the water flow on the water-blocking seat.

[0061] In some embodiments, the water baffle and the airbag 19 are arranged sequentially along a first direction, which is parallel to the axis of the propeller 21. When the propeller 21 is directly opposite the water baffle, the impact force of the water flow on the water baffle is the greatest, and the airbag 19 is located in the direction of the impact force of the water flow, thus playing a better buffering role.

[0062] Optionally, there are multiple water-blocking devices 1, which are arranged at radial intervals along the propeller 21. The water-blocking devices 1 are installed on both sides of the stern lifting deck.

[0063] In some embodiments, two propellers 21 are mounted on the hull 20, with the propellers 21 installed in opposite directions to generate thrust in different directions. Each propeller 21 is matched with multiple water-blocking devices 1. All water-blocking devices 1 are arranged in two rows, with the two rows of water-blocking devices 1 arranged in a mirror image of each other.

[0064] Specifically, a propeller 21 is positioned near the front of the hull 20 and discharges water backward, causing the water flow to be directed backward. Multiple water-blocking devices 1, matched to the propeller 21, are arranged radially at intervals along the propeller 21, with gaps between them approximately the length of a baffle plate 11. These gaps serve to divert the water flow, preventing large eddies from damaging the hull 20. Simultaneously, the multiple baffle plates 11 distribute the impact force of the water flow, preventing the entire force of the water flow from acting on a single baffle plate 11. When the propeller 21 rotates, causing the hull 20 to move forward, the water flow acts backward on the multiple water-blocking devices 1 arranged in a row behind it. The action of the water-blocking devices 1 prevents the hull 20 from swaying and vibrating.

[0065] Another propeller 21 is located near the rear end of the hull 20 and discharges water forward, causing the water flow to move forward. Multiple water-blocking devices 1, matched to this propeller 21, are arranged radially at intervals along the propeller 21, with gaps between them approximately the length of a water-blocking plate 11. These gaps serve to divert the water flow, preventing large eddies from damaging the hull 20. Simultaneously, the multiple water-blocking plates 11 distribute the impact force of the water flow, preventing the entire force of the water flow from acting on a single water-blocking plate 11. When the propeller 21 rotates, causing the hull 20 to move forward, the water flow acts backward on the multiple water-blocking devices 1 arranged in a row in front of it. With the help of the water-blocking base and the airbag 19, the hull 20 is prevented from swaying and vibrating.

[0066] Compared to the traditional I-shaped water-blocking device 1, the water-blocking device 1 of this embodiment can adapt to working environments with more complex fluid conditions. Since the guide surface 111 of the water-blocking plate 11 can guide the water flow to both sides, and the hull 20 shares the force through multiple water-blocking plates 11, it plays a role in diverting the water flow, which has the advantages of reducing the water flow and preventing the generation of large whirlpools. It overcomes the problems of strong vibration and shaking caused to the hull 20 and underwater working equipment under the impact of high-speed water flow.

[0067] like Figure 10 As shown, specifically, the hull 20 has a bow F1 and a bow F2. The deck platform 201 has a lift deck 202, which is located at the stern F2 of the hull 20. A water-blocking device 1 is installed on the lift deck 202, and the water-blocking device 1 is corner-welded to the lift deck 202.

[0068] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A water-blocking seat, characterized in that, It includes a baffle plate (11), a first guide plate (12), and a second guide plate (13); the baffle plate (11) has a guide surface (111) extending along a first arc trajectory, the first guide plate (12) and the second guide plate (13) are arranged at intervals along the first arc trajectory, one end of the first guide plate (12) and one end of the second guide plate (13) are both connected to the baffle plate (11), the other end of the first guide plate (12) and the other end of the second guide plate (13) both extend in a direction away from the center of the guide surface (111) and the distance between the first guide plate (12) and the second guide plate (13) gradually increases.

2. The water-blocking seat according to claim 1, characterized in that, It also includes a first reinforcing plate (14); the first reinforcing plate (14) is U-shaped, and both ends of the first reinforcing plate (14) are connected to the guide surface (111).

3. The water-blocking seat according to claim 2, characterized in that, It also includes a third guide plate (15); there are multiple first reinforcing plates (14), and multiple first reinforcing plates (14) are arranged at intervals along the first arc trajectory, and a groove (16) is formed between adjacent first reinforcing plates (14), and at least some of the adjacent first reinforcing plates (14) are connected by the third guide plate (15), and the third guide plate (15) covers the groove opening of the groove (16).

4. The water-blocking seat according to claim 2, characterized in that, It also includes a second reinforcing plate (17); the first reinforcing plate (14) and the water baffle plate (11) together form a through hole, and the second reinforcing plate (17) is installed in the through hole and covers the through hole.

5. The water-blocking seat according to any one of claims 1 to 4, characterized in that, The baffle plate (11) also has a mounting surface (112), which is opposite to the flow guiding surface (111), and a connecting rib plate (18) is provided on the mounting surface (112).

6. The water-blocking seat according to claim 5, characterized in that, The mounting surface (112) extends along the second arc trajectory, and the center of the mounting surface (112) coincides with the center of the guide surface (111). There are multiple connecting ribs (18) and they are arranged at intervals along the second arc trajectory.

7. A water-blocking device (1), characterized in that, Includes an airbag (19) and a water-blocking seat as described in any one of claims 1 to 4; the water-blocking plate (11) further has a mounting surface (112) extending along a second arc trajectory, and the airbag (19) is connected to the mounting surface (112).

8. A ship, characterized in that, It includes a hull (20), a propeller (21) rotatably mounted on the hull (20), and a water-blocking device (1) as described in claim 7; the water-blocking device (1) is mounted on the hull (20), and the water-blocking seat and the airbag (19) are arranged sequentially in a direction away from the propeller (21).

9. The ship according to claim 8, characterized in that, The water-blocking seat and the airbag (19) are arranged sequentially along a first direction, which is parallel to the axis of the propeller (21).

10. The ship according to claim 8, characterized in that, There are multiple water-blocking devices (1), and the multiple water-blocking devices (1) are arranged at radial intervals along the propeller (21).

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