Stability augmentation tail plate mechanism suitable for small and medium-sized ships

Abstract

The utility model discloses a stability augmentation tail plate mechanism suitable for small and medium-sized ships, and belongs to the field of ship design. The stability augmentation tail plate mechanism comprises a telescopic frame, a first driving device, a water pressing plate, a second driving device and a third driving device. One end of the telescopic frame is hinged to the middle position below the stern, and the other end is hinged to one end of the water pressing plate. The first driving device is installed in the telescopic frame and used for driving the telescopic frame to stretch out and draw back. The second driving device is installed on the telescopic frame, the power output end of the second driving device is connected with the other end of the water pressing plate, and the second driving device is used for driving the water pressing plate to rotate around a pin shaft hinged to the telescopic frame. The third driving device is connected with the stern and the telescopic frame and used for driving the telescopic frame to turn over around a hinge shaft hinged to the stern. According to the stability augmentation tail plate mechanism, the extending distance and angle of the water pressing plate at the stern can be adjusted, the whole mechanism can be folded and recycled, and the problems that in the prior art, a tail plate cannot be freely adjusted, the stability augmentation effect is poor, and the advancing resistance is large are solved.

Description

Technical Field

[0001] The invention belongs to the field of ship design, and in particular relates to a stabilizing transom mechanism suitable for small and medium-sized ships. Background Art

[0002] When small and medium-sized ships (generally less than 10 meters in length) sail on the surface of windy and choppy waters, they will be affected by the waves and sway in multiple degrees of freedom. When encountering multiple continuous waves, the sway will be more serious. This sway will have an extremely adverse effect on the equipment, cargo, and personnel in the ship, and will affect the continued safety of the ship. For example, the sway along the longitudinal direction of the ship is one of the most harmful phenomena. In order to eliminate this adverse effect, people have adopted a variety of methods. The most common one is to increase the length of the ship. Although this method has significant effects, it increases the difficulty and cost of construction, and the application environment is also limited. Alternatively, the stability of the ship is increased by setting a horizontal wing surface at the bow, setting a vertical vertical plate extending downward at the bottom of the ship, and setting a large-sized horizontal balance plate at the bottom of the ship. The disadvantages of these methods are either that they will produce a large travel resistance or that the anti-rolling effect is not obvious.

[0003] There are also proposals in the prior art to add a horizontal stern plate at the stern of a ship to increase stability. For example, the patent document with publication number CN109911100A discloses a high-speed ship with a stern wave plate and its control method. The stern wave plate is set close to the stern, with a small backward extension distance and only one degree of freedom of deflection. The adjustment method is single and the stabilization effect is limited. At the same time, the plate surface cannot be retracted, which affects other operations at the stern. The patent document with publication number CN219770121U discloses a stabilized cruise ship, which uses a fixed stern plate and does not have the function of autonomous adjustment according to the driving speed and wave conditions, and the stabilization effect is limited. Summary of the invention

[0004] Technical issues to be solved:

[0005] In order to avoid the shortcomings of the prior art, the present invention provides a stabilizing stern plate mechanism suitable for small and medium-sized ships. A retractable telescopic frame is designed to be installed at the stern, and an angle-adjustable water pressure plate is installed at the end of the telescopic frame. At the same time, the telescopic frame can be flipped under the action of a driving device, so that the extension distance and angle of the water pressure plate at the stern can be adjusted, and the entire mechanism can be folded and recovered, thereby solving the problems in the prior art that the stern plate cannot be adjusted more freely and the stabilizing effect is poor.

[0006] The technical solution of the present invention is: a stabilizing transom mechanism suitable for small and medium-sized ships, comprising a telescopic frame, a first driving device, a water pressure plate, a second driving device, and a third driving device;

[0007] One end of the telescopic frame is hinged at the middle position below the stern, and the other end is hinged to one end of the water pressure plate; the first driving device is installed in the telescopic frame, and is used to drive the telescopic frame to extend and retract;

[0008] The second driving device is installed on the telescopic frame, and its power output end is connected to the other end of the water pressure plate. The second driving device is used to drive the water pressure plate to rotate around the pin shaft hinged to the telescopic frame;

[0009] The third driving device is connected to the stern and the telescopic frame, and is used to drive the telescopic frame to flip around the hinge axis hinged to the stern.

[0010] A further technical solution of the present invention is that the first driving device, the second driving device and the third driving device are each a group of hydraulic cylinders, and the three groups of hydraulic cylinders are all connected to a hydraulic station located in the hull, and their extension and retraction are controlled by the hydraulic station.

[0011] A further technical solution of the present invention is: the telescopic frame is a frame structure, including an outer side beam and an inner side beam; two outer side beams are provided, which are arranged in parallel; the inner side beams match the outer side beams in number and cross-section, and the two inner side beams are slidably embedded in the two outer side beams respectively; the first driving device is two first hydraulic cylinders, which are respectively installed in the two outer side beams; the cylinder body of the first hydraulic cylinder is fixedly connected to the outer side beam, and the end of its cylinder rod is fixed to one end of the inner side beam.

[0012] A further technical solution of the present invention is that the outer edge beam is a square tube or a grooved tube.

[0013] A further technical solution of the present invention is: the telescopic frame also includes a crossbeam, which is located between the two outer side beams and vertically connects the two outer side beams to strengthen the telescopic frame.

[0014] A further technical solution of the present invention is: a support ear is provided at one end of the outer side beam, which is hinged to the mounting ear plate located below the stern through a pin shaft; a bracket is provided at the other end of the outer side beam for installing a second drive device; the water pressure plate is located between the two inner side beams, and the ends of the two inner side beams away from the first hydraulic cylinder are hinged to both sides of the outer end of the water pressure plate.

[0015] A further technical solution of the present invention is: the second driving device is two second hydraulic cylinders, which are respectively installed on the brackets of the two outer beams; the cylinder body of the second hydraulic cylinder is hinged to the top of the bracket; the cylinder rod ends of the two second hydraulic cylinders are respectively hinged to the inner ends of the water pressure plate.

[0016] A further technical solution of the present invention is: the third driving device is two third hydraulic cylinders, the two third hydraulic cylinders are symmetrically installed at the stern at the same level, and are located above the two mounting ear plates; convex pins are provided at the same position on the outer sides of the two outer side beams; the cylinder body end of the third hydraulic cylinder is hinged to the stern, and the cylinder rod end is hinged to the convex pin of the outer side beam on the side.

[0017] A further technical solution of the present invention is: the first drive device, the second drive device, and the third drive device are all provided with a pressure sensor and a stroke sensor, the pressure sensor is used to estimate the force applied to the hydraulic cylinder, and the stroke sensor is used to obtain the stroke position of the hydraulic cylinder, and then to resolve the posture of the mechanism; the pressure sensor and the stroke sensor are both connected to the control system of the hull to transmit measurement data to it.

[0018] Beneficial Effects

[0019] The beneficial effects of the present invention are as follows: the present invention is a stabilizing tail plate mechanism suitable for small and medium-sized ships, the telescopic frame is turned over by two third hydraulic cylinders, the telescopic frame has a telescopic function, one end of the telescopic rod is hinged to the stern, and the other end is hinged to a water pressure plate, and the angle of the water pressure plate is adjusted by two second hydraulic cylinders. The ship stabilizing tail plate formed by the above structure can effectively reduce the turbulence of the ship in wind and waves and increase the longitudinal stability of small and medium-sized ships. For example, a high-speed catamaran has a 9m waterline length and a stabilizing tail plate horizontal extension distance of 5m. Its wave resistance performance is equivalent to that of a ship with a 14m waterline length, and the increase in stability is extremely significant.

[0020] The present invention can adjust the back extension distance of the water pressure plate through the telescopic function of the telescopic frame; can adjust the water receiving angle of the water pressure plate through the two third hydraulic cylinders to control the flipping angle of the telescopic frame; and can adjust the water pressure strength of the water pressure plate through the two second hydraulic cylinders. The back extension distance, water receiving angle, and water pressure strength of the water pressure plate can be adjusted autonomously according to the motion state of the ship and the wave state of the water surface, which has a better effect on improving the stability of the ship.

[0021] The stabilizing stern plate mechanism of the present invention can reduce the wake waves and breaking waves behind the ship, improve the flow state behind the ship, thereby reducing the running resistance of the ship, improve the water flow state behind the ship, and reduce the sailing resistance.

[0022] The stabilizing tailboard mechanism of the present invention has the functions of flipping and retracting, and can be folded and retracted when not needed, so as not to hinder the operation at the stern. At the same time, the stabilizing tailboard mechanism can also be used as an auxiliary mechanism for loading and unloading goods. By placing the goods on the water pressure plate, flipping the telescopic frame to the corresponding angle, and retracting the telescopic frame, the goods can be pushed to the warehouse entrance at the stern. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a diagram showing the deployed state of the stabilizing tail plate mechanism of the present invention installed at the tail of the hull;

[0024] Figure 2 This is a structural diagram of the stabilization tail plate mechanism of the present invention in an expanded state;

[0025] Figure 3 This is a structural diagram of the stabilizing tailboard mechanism of the present invention in a retracted state;

[0026] Figure 4 This is a schematic diagram of the transition state of the stabilization tailgate mechanism of the present invention (the third hydraulic cylinder is hidden);

[0027] Figure 5 Schematic diagram of the different stages of the contraction process of the stabilizing tailboard mechanism of the present invention, wherein Figure (a) shows the state of preparing to contract; Figure (b) shows the state of the telescopic frame being lifted to a certain angle; Figure (c) shows the state of further contracting a certain angle based on Figure (b); Figure (d) shows the fully contracted state;

[0028] Figure 6 The following are comparison diagrams of the hull traveling in wind and waves before and after the stabilizing tail plate mechanism of the present invention is installed on the hull, wherein Figure (e) shows the traveling state without the stabilizing tail plate mechanism installed, and Figure (f) shows the traveling state with the stabilizing tail plate mechanism installed;

[0029] Figure 7 The following are comparison diagrams of the process of a hull falling from waves before and after the stabilizing tail plate mechanism of the present invention is installed on the hull, wherein Figure (g) shows the falling state without the stabilizing tail plate mechanism installed, and Figure (h) shows the falling state with the stabilizing tail plate mechanism installed;

[0030] Figure 8 This is a schematic diagram of the stabilizing tailgate mechanism of the present invention used for loading and unloading cargo (the third hydraulic cylinder is hidden in the figure).

[0031] Explanation of the reference numerals: 1. hull, 2. stern plate stabilizing mechanism of the present invention, 3. outer side beam, 4. third hydraulic cylinder, 5. inner side beam, 6. second hydraulic cylinder, 7. water pressure plate, 8. first hydraulic cylinder, 9. cross beam, 10. mounting ear plate, 11. bracket, 12. protruding pin, 13. cargo. DETAILED DESCRIPTION

[0032] The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] See also Figure 1 The stabilizing stern plate mechanism 2 for small and medium-sized ships of the present invention is installed at the stern of the hull 1 and is suitable for small and medium-sized ships with short waterline, wide and flat rear end surface, large height and sufficient space for arranging supporting equipment as loading objects, especially small high-speed catamarans. It is mainly used to increase the seakeeping performance of the hull 1, reduce the sailing resistance, and finally improve the sailing stability and driving speed of the ship.

[0035] During the course of sailing, the ship will encounter waves extending laterally, causing the hull 1 to tilt along the longitudinal axis, and the cosine value of the tilt angle is equal to the ratio of the wave height to the waterline length of the hull 1. That is, the greater the wave height, the smaller the waterline length of the hull 1, and the greater the tilt angle. Since waves usually encounter the hull 1 in succession, the hull 1 will experience periodic ups and downs. Such tilt and bumps will have serious adverse effects on the hull structure, shipboard equipment, loaded cargo and personnel on board. In severe cases, the hull 1 will be deformed and damaged, equipment and cargo will fall off and be damaged, displaced and collided, and personnel will become dizzy and disabled. Generally speaking, large ships will take advantage of their longer hulls to reduce the impact of wind and waves. The impact on small and medium-sized ships is greater and more severe. In order to reduce swaying and pitching and improve the smoothness of the ship, as described in the background technology, people have adopted many methods. Although these methods can partially reduce the longitudinal swaying and pitching of the ship, the existing stabilizing tail plates are mostly fixed structures or adjustable in one dimension, so the stabilizing effect is not good; and because multi-dimensional adjustment cannot be achieved, it will bring considerable resistance, especially when the ship is sailing at a higher speed. In order to solve this problem and improve the driving stability of small and medium-sized ships, the present invention proposes to install a ship stabilizing tail plate mechanism 2 at the stern, which can adjust the extension distance and water connection angle and can be folded when not in use. This mechanism can not only increase the wind and wave resistance of the hull 1, but also reduce the driving resistance of the hull 1, and can also serve as an auxiliary mechanism for loading and unloading cargo.

[0036] See also Figure 2-5The present invention discloses a stabilizing stern plate mechanism suitable for small and medium-sized ships, comprising a telescopic frame, a first driving device, a water pressure plate 7, a second driving device, and a third driving device. In this embodiment, the first driving device, the second driving device, and the third driving device are all a set of hydraulic cylinders, and the three sets of hydraulic cylinders are all connected to a hydraulic station located in the hull 1, and the hydraulic station controls their telescopic movement to realize the driving action. An electric pull rod can also be used as a driving device.

[0037] The telescopic frame is a frame structure, including an outer beam 3, an inner beam 5, a cross beam 9, and a bracket 11. The outer beam 3 is a square tube or a grooved tube structure, and there are two of them, which are arranged in parallel and flush at both ends. A lug is provided at one end of the outer beam 3, and one end of the lugs of the two outer beams 3 are respectively hinged to the corresponding mounting lug plates 10 located below the stern through a pin. The two mounting lug plates 10 are located in the same horizontal plane and are symmetrically arranged along the center of the stern. The two outer beams 3 can rotate around the hinge pin of the mounting lug plate 10 through the hinge. The inner beam 5 matches the outer beam 3 in number and cross-section. The two inner beams 5 are respectively slidably embedded in the two outer beams 3 and can slide axially along the outer beams 3 installed respectively. The first driving device is two first hydraulic cylinders 8, which are respectively installed in the two outer side beams 3. The cylinder body of the first hydraulic cylinder 8 is fixedly connected to the end of the outer side beam 3 where the support ear is located. The cylinder rod end of the first hydraulic cylinder 8 is fixed to the end of the inner side beam 5 close to the first hydraulic cylinder 8. The first hydraulic cylinder 8 provides power for the sliding and telescopic movement of the inner side beam 5. There are two cross beams 9, which are parallel to each other and located between the two outer side beams 3. The two cross beams 9 vertically connect the two outer side beams 3 to play the role of strengthening the telescopic frame. A bracket 11 is provided at the end of the two outer side beams 3 away from the support ear. The bracket 11 is located above the outer side beam 3 and perpendicular to the outer side beam 3, and is used to install the second driving device.

[0038] The water pressure plate 7 is located between the two inner side beams 5, and one end of the two inner side beams 5 away from the first hydraulic cylinder 8 is hinged to the outer ends of the water pressure plate 7. The second driving device is two second hydraulic cylinders 6, which are respectively installed on the brackets 11 of the two outer side beams 3. The cylinder bodies of the two second hydraulic cylinders 6 are respectively hinged to the top ends of the corresponding brackets 11, and the cylinder rod ends of the two second hydraulic cylinders 6 are respectively hinged to the inner ends of the water pressure plate 7. The shape of the water pressure plate 7 can be set according to specific needs. In this embodiment, the water pressure plate 7 is a rectangular plate-like structure, and hinged mounting seats are fixed on the four corners of its upper end surface. The mounting seats on both sides of the outer end of the water pressure plate 7 are hinged to the inner side beam 5 on the side through a pin shaft. The mounting seats on both sides of the inner end of the water pressure plate 7 are hinged to the cylinder rod ends of the second hydraulic cylinder 6 on the side through a pin shaft. When the two second hydraulic cylinders 6 are extended and retracted at the same time, the water pressure plate 7 rotates around the hinge pin shaft with the inner side beam 5 to achieve the angle adjustment of the water pressure plate 7. Figure 2 , Figure 4 The water pressure plate 7 is shown in different angles.

[0039] The third driving device connects the stern and the two outer side beams 3, and is used to drive the two outer side beams 3 to flip. The third driving device is two third hydraulic cylinders 4, and the two third hydraulic cylinders 4 are symmetrically installed at the stern at the same level, and are respectively located above the two mounting ear plates 10. Specifically, an inner groove is provided on the stern cabin plate above the two mounting ear plates 10, and a hinge support is provided in the inner groove, and the cylinder ends of the two third hydraulic cylinders 4 are hinged to the corresponding hinge support through a connecting shaft. At the same time, a convex pin 12 is provided at the same position on the outer side of the two outer side beams 3, and the cylinder rod ends of the two third hydraulic cylinders 4 are hinged to the convex pin 12 of the outer side beam 3 on the side. When the two third hydraulic cylinders 4 are extended and retracted at the same time, the two outer side beams 3 rotate around the hinge pin shaft at their respective corresponding mounting ear plates 10 to realize the flipping of the entire telescopic frame. Figure 3 As shown, in order to save space after the entire stabilizing tail plate mechanism 2 is turned over and retracted, and the entire mechanism fits the tail of the hull 1, an inner concave portion corresponding to the two brackets 11 is provided on the outer wall of the stern for accommodating the brackets 11, thereby saving more space. Figure 5 As shown, Figure 5 The schematic diagrams of the stabilizing transom mechanism 2 of the present invention at different stages of the flipping and storage process are shown. When the hull 1 is in berthing, storage, transportation or other special states, the stabilizing transom mechanism 2 can be completely retracted and closely attached to the rear end surface of the stern. At this time, the stabilizing transom mechanism 2 basically does not occupy more space and will not affect the handling and operation of the hull 1.

[0040] See also Figure 6 The stabilizing stern plate mechanism 2 of the present invention is installed at the stern. When the hull 1 is sailing, the stabilizing stern plate mechanism 2 is unfolded to make the bottom surface of the water pressure plate 7 close to the water surface. When the hull 1 encounters wind and waves, the front end of the hull 1 is pushed upward by the waves. At this time, the water pressure plate 7 is close to the water surface, and the upward thrust of the water surface is used to provide a support end for the hull 1. The hull 1 will rotate around this support end, while without the stabilizing stern plate mechanism 2, the hull 1 will rotate around the stern. Compared with the two, the upward deflection angle of the hull 1 equipped with the stabilizing stern plate mechanism 2 is significantly smaller. In fact, installing the stabilizing stern plate mechanism 2 is equivalent to lengthening the length of the hull 1, and the stabilizing effect is very clear and significant. Figure 7 When the hull 1 falls from the waves, the stern stabilizer mechanism 2 is adjusted in angle and sunk into the water to slow down the deflection speed of the hull 1 and increase the traveling stability of the hull 1. At the same time, by adjusting the angles of the outer side beam 3 and the water pressure plate 7, the stern stabilizer mechanism 2 can also reduce the wake and breaking waves behind the ship, improve the flow state behind the ship, and thus reduce the running resistance of the hull 1.

[0041] Due to the complex and changeable conditions on the water surface, the motion state of the hull 1 is also constantly changing. In order to make the water pressure plate 7 stably close to the water surface, pressure sensors and stroke sensors are provided on the two third hydraulic cylinders 4, the two second hydraulic cylinders 6, and the two first hydraulic cylinders 8. The pressure sensor is used to estimate the force of the hydraulic cylinder, and the stroke sensor is used to obtain the stroke position of the hydraulic cylinder, and then used to resolve the posture of the mechanism. The pressure sensor and the stroke sensor are electrically connected to the control system of the hull 1, and the measurement data is transmitted to the control system in real time. The control system controls each hydraulic cylinder at any time according to the data sent back by each sensor, combined with the formulated response strategy, so as to adjust the extension distance, height and water connection angle of the water pressure plate 7, so that the stabilization tail plate mechanism 2 is always kept in the best tooling state. A control system and a corresponding control interface are provided inside the hull 1. According to theoretical calculations and usage experience, the corresponding control software is compiled, and the operation process of the system can be automatically completed by the processor or realized by manual intervention. The layout of each sensor belongs to the prior art and will not be described in detail here.

[0042] When the ship is traveling at high speed, the water pressure plate 7 can form a gliding surface together with the hydrofoil on the hull 1, pushing the ship to float on the water surface, so that the hull 1 can sail at high speed under low resistance. At this time, the stabilizing tail plate mechanism 2 also has the function of expanding the supporting surface and increasing the stability of the ship.

[0043] See also Figure 8 The stabilizing tailboard mechanism 2 of the present invention can also be used as an auxiliary tool for loading and unloading cargoes, and its retractable, flippable and supporting functions can be used to facilitate pushing the cargoes 13 to the entrance at the stern.

[0044] In this embodiment, the outer side beam 3, the inner side beam 5, the cross beam 9, the bracket 11, the water pressure plate 7, the mounting ear plate 10 and other structural parts can be made of steel, aluminum or composite materials. The hydraulic station and the corresponding control valves, three groups of hydraulic cylinders, each hydraulic cylinder and the connecting pipelines with the hydraulic station are selected and customized according to the specifications of the stabilizing tail plate mechanism 2, and are arranged and installed. This part belongs to the prior art and will not be repeated here.

[0045] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and intent of the present invention.

Claims

1. A stabilizing transom mechanism suitable for small and medium-sized ships, characterized in that: It includes a telescopic frame, a first driving device, a water pressure plate, a second driving device, and a third driving device; One end of the telescopic frame is hinged at the middle position below the stern, and the other end is hinged to one end of the water pressure plate; the first driving device is installed in the telescopic frame, and is used to drive the telescopic frame to extend and retract; The second driving device is installed on the telescopic frame, and its power output end is connected to the other end of the water pressure plate. The second driving device is used to drive the water pressure plate to rotate around the pin shaft hinged to the telescopic frame; The third driving device is connected to the stern and the telescopic frame, and is used to drive the telescopic frame to flip around the hinge axis hinged to the stern.

2. The stabilizing transom mechanism for small and medium-sized ships according to claim 1, characterized in that: The first driving device, the second driving device and the third driving device are all a group of hydraulic cylinders. The three groups of hydraulic cylinders are all connected to a hydraulic station located in the hull, and their extension and retraction are controlled by the hydraulic station.

3. The stabilizing transom mechanism for small and medium-sized ships according to claim 2, characterized in that: The telescopic frame is a frame structure, including an outer side beam and an inner side beam; two outer side beams are provided, which are arranged in parallel; the inner side beams match the outer side beams in number and cross-section, and the two inner side beams are slidably embedded in the two outer side beams respectively; the first driving device is two first hydraulic cylinders, which are respectively installed in the two outer side beams; the cylinder body of the first hydraulic cylinder is fixedly connected to the outer side beam, and the end of its cylinder rod is fixed to one end of the inner side beam.

4. The stabilizing transom mechanism for small and medium-sized ships according to claim 3 is characterized in that: The outer edge beam is a square tube or a grooved tube.

5. The stabilizing transom mechanism for small and medium-sized ships according to claim 3, characterized in that: The telescopic frame also includes a crossbeam, which is located between the two outer side beams and vertically connects the two outer side beams to strengthen the telescopic frame.

6. The stabilizing transom mechanism for small and medium-sized ships according to claim 3, characterized in that: A support ear is provided at one end of the outer side beam, which is hinged to the mounting ear plate located below the stern through a pin shaft; a bracket is provided at the other end of the outer side beam for installing a second drive device; the water pressure plate is located between the two inner side beams, and the ends of the two inner side beams away from the first hydraulic cylinder are hinged to both sides of the outer end of the water pressure plate.

7. The stabilizing transom mechanism for small and medium-sized ships according to claim 6, characterized in that: The second driving device is two second hydraulic cylinders, which are respectively installed on the brackets of the two outer beams; the cylinder body of the second hydraulic cylinder is hinged to the top of the bracket; the cylinder rod ends of the two second hydraulic cylinders are respectively hinged to the inner ends of the water pressure plate.

8. The stabilizing transom mechanism for small and medium-sized ships according to claim 6, characterized in that: The third driving device is two third hydraulic cylinders, which are symmetrically installed at the stern at the same level and located above the two mounting ear plates; convex pins are provided at the same position on the outer sides of the two outer side beams; the cylinder body end of the third hydraulic cylinder is hinged to the stern, and the cylinder rod end is hinged to the convex pin of the outer side beam on the side.

9. The stabilizing transom mechanism for small and medium-sized ships according to claim 2, characterized in that: The first drive device, the second drive device and the third drive device are all provided with a pressure sensor and a stroke sensor. The pressure sensor is used to estimate the force applied to the hydraulic cylinder, and the stroke sensor is used to obtain the stroke position of the hydraulic cylinder, and then to resolve the posture of the mechanism; the pressure sensor and the stroke sensor are both electrically connected to the control system of the hull to transmit measurement data to it.

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