Pod propeller lifting device and pod propelling equipment

Abstract

The utility model provides a pod propeller lifting device and pod propelling equipment. The pod propeller lifting device is used for being installed on a water area carrier and comprises a pod propelling main machine, a main machine pipe and a lifting mechanism. The pod propelling main engine is connected to the bottom end of the main engine pipe. The lifting mechanism comprises a support frame, a pulley and a traction rope; one end of the traction rope is connected to the main machine pipe, and the other end of the traction rope bypasses the pulley, extends to one side of the supporting frame and is used for driving the main machine pipe and the pod propelling main machine to ascend and descend, so that the pod propelling main machine enters and exits the storage cavity of the water area carrier. The containing cavity can contain the pod propelling main machine, and when propelling force is not needed, the traction rope is pulled, so that the pod propelling main machine moves into the containing cavity; when propulsive force is needed, the traction rope is loosened, the pod propulsion main machine moves downwards to the outside of the containing cavity, use is convenient, and the use requirements of different occasions can be met; the pulley can change the direction of the traction rope, and the operation is convenient and labor-saving.

Description

Technical Field

[0001] This utility model relates to the field of pod propulsion, and in particular to a pod propulsion lifting device and a pod propulsion equipment. Background Technology

[0002] Currently, in the boat industry, with the development of new energy technologies, electric boats using podded propulsion (POD propulsion) have been widely adopted. Traditional electric boats often use podded propulsion engines with a fixed position relative to the waterway, making it difficult to adapt to structural adjustments required by complex environmental changes. Furthermore, on some professional racing boats, the podded propulsion engines extending from the hull can generate resistance, affecting boat speed. Therefore, it is necessary to adjust the installation structure of the podded propulsion engines to adapt to the usage requirements of different occasions. Utility Model Content

[0003] This utility model provides a pod propulsion lifting device and a pod propulsion equipment, which are easy to operate and can adapt to the needs of different occasions.

[0004] On the one hand, this utility model provides a pod propulsion lifting device for installation on a water carrier. The bottom of the water carrier is provided with a storage cavity, the bottom opening of the storage cavity and the top being provided with a perforation, the perforation connecting to the cabin of the water carrier.

[0005] The pod propulsion lifting device includes a pod propulsion main unit, a main unit tube, and a lifting mechanism; the pod propulsion main unit is connected to the bottom end of the main unit tube; the main unit tube slides through the perforation along its own axis;

[0006] The lifting mechanism includes a support frame, a pulley, and a traction rope. The support frame is fixed inside the cabin of the water carrier. The pulley is rotatably mounted on the support frame. One end of the traction rope is connected to the main tube, and the other end passes around the pulley and extends to one side of the support frame. It is used to drive the main tube and the pod propulsion main unit to move up and down, so that the pod propulsion main unit can enter and exit the storage cavity.

[0007] The support frame includes a top rod and two uprights. The two uprights are vertically arranged and their bottom ends are fixedly connected to the water carrier. The two ends of the top rod are respectively connected to the top ends of the two uprights. The pulley is rotatably mounted on the top rod.

[0008] The main unit tube is equipped with a lifting frame, and the two ends of the lifting frame are slidably connected to the two uprights respectively.

[0009] The lifting frame is provided with an adjustment hole, the main unit tube passes through the adjustment hole, and the lifting frame is provided with an adjustment bolt, which is used to abut against the main unit tube to adjust the relative position of the main unit tube and the lifting frame in the vertical direction.

[0010] The bottom of the pod propulsion main unit is fixed with a sealing plate. When the pod propulsion main unit is located in the storage cavity, the sealing plate closes the opening of the storage cavity, and the bottom surface of the sealing plate is flush with the bottom surface of the water carrier.

[0011] The pod propulsion lifting device further includes a guide frame, which includes a guide tube and a fixing plate. The fixing plate is fixedly connected to the water carrier, and the bottom end of the guide tube is fixedly connected to the fixing plate. The main tube movably passes through the guide tube, and a circumferential positioning structure is provided between the main tube and the guide tube.

[0012] The guide tube is provided with a first pin hole, and the main tube is provided with a plurality of second pin holes, which are arranged along the axial direction of the main tube. The pod thruster lifting device also includes a locking pin. When the first pin hole is aligned with a second pin hole, the locking pin passes through the first pin hole and the second pin hole to lock the position of the main tube.

[0013] The locking pin is provided with a handle and a convex shaft. The handle is located at one end of the locking pin, and the convex shaft is spaced apart from the handle. A notch is provided on the wall of the first pin hole for the convex shaft to pass through. When the locking pin locks the position of the main tube, the wall of the guide tube is located between the handle and the convex shaft, and the convex shaft and the notch are misaligned.

[0014] The pod thruster lifting device also includes a claw base and a claw;

[0015] The claw seat is disposed on the water carrier, and the claw seat is provided with a through hole for the main tube to pass through, and a positioning groove is provided on the wall of the through hole;

[0016] The top of the claw is provided with a snap-in part that mates with the positioning groove; the bottom of the claw is rotatably connected to the outer wall of the main tube, and its rotation axis is perpendicular to the axis of the main tube, so that the snap-in part can enter and exit the positioning groove.

[0017] An elastic element is provided between the claw and the main tube. The elastic element is used to provide elastic force so that the locking part moves toward the positioning groove to lock the position of the pod propulsion main unit and the main tube.

[0018] The traction rope is connected to the top of the claw to drive the claw to rotate and move the locking part out of the positioning groove.

[0019] On the other hand, this utility model also provides a pod propulsion device, including a battery, a control module, and the aforementioned pod propulsion lifting device; the main tube of the pod propulsion lifting device is a hollow tube, with a power line and a control line running through it; the pod propulsion main unit of the pod propulsion lifting device is connected to the battery through the power line and to the control module through the control line.

[0020] The podded propulsion lifting device and podded propulsion equipment provided by this utility model have a storage cavity that can accommodate the podded propulsion main unit. When the podded propulsion main unit is not needed to provide propulsion, the operator can pull the tow rope to drive the podded propulsion main unit upward through the main unit tube, moving the podded propulsion main unit into the storage cavity, thus avoiding the podded propulsion main unit forming a protruding part on the bottom of the boat that would interfere with the navigation speed and attitude. When propulsion is needed, the tow rope is released, and the podded propulsion main unit moves down to the outside of the storage cavity to generate propulsion. It is convenient to use and can meet the needs of different occasions. Different navigation modes can be switched according to the operator's needs. The pulley can change the direction of the tow rope, changing the lifting and lowering movement of the podded propulsion main unit to the horizontal movement of the other end of the tow rope. This allows the operator to easily apply force to the tow rope from inside the pod of the water vehicle, making the operation convenient and labor-saving. Attached Figure Description

[0021] Figure 1 A schematic diagram of the pod propulsion device provided in the first embodiment of this utility model;

[0022] Figure 2 yes Figure 1 Another structural schematic diagram of the podded propulsion system;

[0023] Figure 3 yes Figure 1 A cross-sectional view of the podded propulsion unit when the podded propulsion main unit is located inside the storage cavity;

[0024] Figure 4 yes Figure 3 Cross-sectional view of the pod propulsion unit when the pod propulsion main unit is located outside the storage cavity;

[0025] Figure 5 yes Figure 2 Enlarged view of point A in the image;

[0026] Figure 6 yes Figure 1 A schematic diagram showing the connection between the main tube and the guide frame of the podded propulsion system;

[0027] Figure 7 yes Figure 6A schematic diagram showing a partial cross-section of the guide frame;

[0028] Figure 8 yes Figure 6 A schematic diagram of the guide frame structure;

[0029] Figure 9 yes Figure 6 A schematic diagram of the locking pin structure;

[0030] Figure 10 This is a schematic diagram of the structure of the pod propulsion device provided in the second embodiment of this utility model;

[0031] Figure 11 yes Figure 10 Enlarged view of point B in the image;

[0032] Figure 12 yes Figure 11 A schematic diagram of the structure when the middle claw moves outside the positioning groove. Detailed Implementation

[0033] The following description will be given with reference to the accompanying drawings for a more complete description of the present invention. The drawings show exemplary embodiments of the present invention. However, the present invention may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0034] Similar reference numerals indicate the same or similar components.

[0035] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to limit the invention. As used herein, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to also include the plural forms. Furthermore, when used herein, “comprising” and / or “including” and / or “having,” integers, steps, operations, components, and / or components, but does not exclude the presence or addition of one or more other features, regions, integers, steps, operations, components, and / or groups thereof.

[0036] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, unless expressly defined herein, terms such as those defined in a general dictionary shall be interpreted as having the same meaning as they have in the relevant art and in the context of this invention, and shall not be interpreted as having an idealized or overly formal meaning.

[0037] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0038] like Figure 1 and Figure 2 As shown, this utility model provides a pod propulsion lifting device 100 and a pod propulsion device for use on a water carrier 900. The water carrier 900 can be various water transportation vehicles such as commercial ships, fishing boats, passenger ships, and yachts, or it can be equipment that can move in water, such as water inspection equipment or water management equipment.

[0039] like Figure 3 and Figure 4 As shown, the bottom of the water carrier 900 is provided with a storage cavity 910, the bottom opening of the storage cavity 910 and the top are provided with a perforation 920, the perforation 920 connecting to the cabin of the water carrier 900.

[0040] The pod propulsion device provided in the first embodiment of this utility model includes a battery, a control module, and a pod propulsion lifting device 100. The battery provides power to the pod propulsion lifting device 100, and the control module controls the operation of the pod propulsion lifting device 100. The battery and control module can be assembled to form an integrated electronic control device 200 for easy assembly and circuit setup.

[0041] Combination Figure 3 , Figure 4 As shown, the pod propulsion lifting device 100 includes a pod propulsion main unit 1, a main unit tube 2, and a lifting mechanism 3. The pod propulsion main unit 1 is connected to the bottom end of the main unit tube 2, providing propulsion for the movement of the water carrier 900 in the water. The main unit tube 2 has a through hole 920 that slides along its own axis. The lifting mechanism 3 is used to drive the pod propulsion main unit 1 and the main unit tube 2 to move up and down.

[0042] A sealing structure can be installed between the main propulsion tube 2 and the perforation 920 to effectively prevent water ingress during operation. The main propulsion tube 2 is a hollow tube, with power and control lines running through it. In this embodiment, the power and control lines are wrapped in the same insulating sleeve, forming a single cable 800 for easy assembly and connection. The podded propulsion main unit 1 is connected to the battery via a power line and to the control module via a control line. The battery provides power to the podded propulsion main unit 1, and the control module controls the power, steering, and other functions of the podded propulsion main unit 1. The hollow tubular main propulsion tube 2 facilitates the installation of power and control lines, enabling electrical connections between the podded propulsion main unit 1 located in the water and the battery and control module located within the water carrier 900.

[0043] like Figure 5As shown, the lifting mechanism 3 includes a support frame 31, a pulley 32, and a traction rope 33. The support frame 31 is fixed inside the cabin of the water carrier 900. The pulley 32 is rotatably mounted on the support frame 31. One end of the traction rope 33 is connected to the main engine tube 2, and the other end passes around the pulley 32 and extends to one side of the support frame 31, used to drive the main engine tube 2 and the pod propulsion main engine 1 to move up and down, so that the pod propulsion main engine 1 can enter and exit the storage cavity 910.

[0044] like Figure 3 As shown, the storage cavity 910 can house the podded propulsion main engine 1. When propulsion is not required from the podded propulsion main engine 1, the operator can pull the tow rope 33 to raise the podded propulsion main engine 1 through the main engine tube 2, moving it into the storage cavity 910. This prevents the podded propulsion main engine 1 from forming a protrusion on the hull bottom that could interfere with the ship's speed and attitude. When propulsion is needed, the tow rope 33 is released, such as... Figure 4 As shown, the pod propulsion main unit 1 is moved down to the outside of the storage cavity 910 to generate propulsion force. It is convenient to use, can meet the needs of different occasions, and can switch between different navigation modes according to the operator's needs.

[0045] The pulley 32 can change the direction of the traction rope 33, changing the lifting and lowering movement of the pod propulsion host 1 to the horizontal movement of the other end of the traction rope 33. This allows the operator to easily apply force to the traction rope 33 from inside the water carrier 900, making the operation convenient and labor-saving.

[0046] like Figure 5 As shown, the support frame 31 includes a top rod 311 and two uprights 312. The two uprights 312 are vertically arranged and their bottom ends are fixedly connected to the water carrier 900. The two ends of the top rod 311 are respectively connected to the top ends of the two uprights 312, making the entire support frame 31 have an inverted U-shaped structure to ensure the stability of the entire support frame 31. In this embodiment, the top rod 311 and the two uprights 312 are formed by bending metal rods to facilitate the processing and forming of the support frame 31 and to ensure the connection strength between the top rod 311 and the uprights 312. Of course, in other embodiments, the top rod 311 and the uprights 312 can also adopt a separate structure and be assembled and connected using fasteners, welding, or other methods.

[0047] The pulley 32 is rotatably mounted on the top rod 311, which facilitates the assembly of the pulley 32. In this embodiment, the pulley 32 is mounted below the top rod 311 via a pulley bracket. The space between the pulley 32 and the top rod 311 allows the traction rope 33 to pass through, which helps to position the traction rope 33 and prevents it from deviating.

[0048] A lifting frame 21 is installed on the main tube 2, with its two ends slidably connected to two uprights 312. This sliding connection between the lifting frame 21 and the two uprights 312 ensures the stability of the top of the main tube 2 during lifting and lowering, effectively preventing tilting. When the water carrier 900 is in the water, due to water resistance and buoyancy, the podded propulsion main unit 1 descends slowly under its own weight. When it is necessary to lower the podded propulsion main unit 1, the lifting frame 21 can be pressed down vertically to accelerate its exit from the storage compartment, facilitating its descent. Alternatively, if the descent resistance of the podded propulsion main unit 1 is low, it can also descend gradually under its own weight until it extends beyond the bottom of the water carrier 900.

[0049] The lifting frame 21 is provided with an adjustment hole 210, through which the main unit tube 2 passes. The lifting frame 21 is also provided with an adjustment bolt 211, which abuts against the main unit tube 2 to adjust the relative vertical position of the main unit tube 2 and the lifting frame 21. Loosening and tightening the adjustment bolt 211 facilitates the assembly connection between the lifting frame 21 and the main unit tube 2, and also changes the position of the lifting frame 21 on the main unit tube 2 to control the lifting amplitude. When the lifting frame 21 is positioned at the top of the main unit tube 2, the descent amplitude of the main unit tube 2 and the pod propulsion main unit 1 is maximized. Moving the lifting frame 21 towards the bottom of the main unit tube 2 gradually reduces the descent amplitude of the pod propulsion main unit 1.

[0050] In this embodiment, the traction rope 33 is connected to the lifting frame 21. Of course, in other embodiments, the traction rope 33 can also be directly connected to the main unit tube 2.

[0051] like Figure 3 and Figure 4 As shown, a sealing plate 11 is fixed to the bottom of the podded propulsion main unit 1, allowing the sealing plate 11 to rise and fall together with the podded propulsion main unit 1. When the podded propulsion main unit 1 is located in the storage cavity 910, the sealing plate 11 closes the opening of the storage cavity 910, and the bottom surface of the sealing plate 11 is flush with the bottom surface of the water carrier 900. When the podded propulsion main unit 1 is lifted into the storage cavity 910 using the lifting mechanism 3, the sealing plate 11 at the bottom of the podded propulsion main unit 1 rises along with it and closes the opening of the storage cavity 910, thereby preventing water from entering the storage cavity and increasing resistance. The bottom surface of the sealing plate 11 is flush with the bottom surface of the water carrier 900, and the two transition smoothly, which can prevent the sealing plate 11 from protruding relative to the bottom of the ship, further reducing resistance during navigation and effectively reducing the interference of the protruding part of the bottom of the water carrier 900 on the navigation speed and attitude. When the podded propulsion main unit 1 descends, the sealing plate 11 can descend together to open the opening of the storage cavity 910.

[0052] like Figure 5As shown, the pod propulsion lifting device 100 also includes a guide frame 4, which includes a guide tube 41 and a fixing plate 42. The fixing plate 42 is fixedly connected to the water carrier 900 so that the guide frame 4 is fixed inside the water carrier 900. The bottom end of the guide tube 41 is fixedly connected to the fixing plate 42, and the main tube 2 movably passes through the guide tube 41, and a circumferential positioning structure is provided between the main tube 2 and the guide tube 41. By utilizing the cooperation between the main tube 2 and the guide tube 41, the stability of the lifting and moving of the main tube 2 can be further ensured.

[0053] The circumferential positioning structure between the main tube 2 and the guide tube 41 prevents the main tube 2 from rotating. This circumferential positioning structure can be any structure that positions the main tube 2 and guide tube 41 circumferentially to prevent relative rotation. For example, the outer wall of the main tube 2 could be square, and the inner wall of the guide tube 41 could be square. They could slide relative to each other circumferentially but would not rotate relative to each other; the cross-sectional shape of the main tube 2 itself is sufficient to prevent rotation. In other embodiments, if the water carrier 900 itself has a guiding structure that meets the support requirements for the vertical sliding of the main tube 2, for example, if the cross-section of the perforation 920 is a matching square with the main tube 2, then the guide frame 4 may not be necessary.

[0054] like Figure 6 , Figure 7 , Figure 8 As shown, the guide tube 41 is provided with a first pin hole 411, and the main tube 2 is provided with multiple second pin holes 242, which are arranged along the axial direction of the main tube 2. The pod propulsion lifting device 100 also includes a locking pin 5. When the first pin hole 411 is aligned with a second pin hole 242, the locking pin 5 passes through the first pin hole 411 and the second pin hole 242 to lock the position of the main tube 2. The position of the main tube 2 can be locked by the locking pin 5, thereby locking the height position of the pod propulsion main unit 1.

[0055] The second pin holes 242 are multiple in number arranged along the axial direction of the main tube 2. After the pod is pushed into the main unit 1 and adjusted to a suitable position by lifting, the first pin hole 411 will be aligned with the corresponding second pin hole 242 on the main tube 2. By using the locking pin 5 to cooperate with different second pin holes 242, it can be positioned at different heights to achieve height adjustment and meet the usage requirements.

[0056] like Figure 9 As shown, the locking pin 5 is provided with a handle 51 and a convex shaft 52. The handle 51 is located at one end of the locking pin 5, and the convex shaft 52 is spaced apart from the handle 51. Figure 8As shown, a notch 412 is provided on the wall of the first pin hole 411, which is used for the passage of the cam shaft 52. The operator can hold the handle 51 and rotate the locking pin 5 so that the notch 412 corresponds to the cam shaft 52. At this time, pushing the locking pin 5 will allow the cam shaft 52 to pass through the notch 412, pass through the first pin hole 411, and enter the guide tube 41. At the same time, the locking pin 5 passes through the second pin hole 242 to lock the position of the main tube 2.

[0057] When the locking pin 5 locks the position of the main tube 2, the operator can rotate the locking pin 5 again. After the cam 52 rotates a certain angle, the tube wall of the guide tube 41 is located between the handle 51 and the cam 52. The cam 52 and the notch 412 are misaligned, so that the locking pin 5 cannot be moved out of the first pin hole 411, so that the position of the main tube 2 can be reliably locked. The locking pin 5 will not automatically fall out due to factors such as vibration during the navigation of the water carrier 900, which would cause the locking to fail.

[0058] In this embodiment, the height of the pod propulsion host 1 is locked by the locking pin 5. Alternatively, a rope clamp can be installed on the water carrier 900 to lock the traction rope 33. After the pod propulsion host 1 is raised to a suitable height by the traction rope 33, the rope clamp is used to lock the traction rope 33, thereby locking the height of the pod propulsion host 1.

[0059] like Figure 10 As shown, the main difference between the second embodiment of this utility model and the first embodiment lies in the connection method and lifting and locking method of the traction rope 33. More specifically, as shown... Figure 11 and Figure 12 As shown, the pod propulsion lifting device 100 also includes a claw seat 6 and a claw 7.

[0060] The claw seat 6 is disposed on the water carrier 900. The claw seat 6 is provided with a through hole 60 for the main engine tube 2 to pass through. The main engine tube 2 can extend into the cabin of the water carrier 900 by passing through the through hole 920 of the water carrier 900 and the through hole 60 of the claw seat 6 in sequence.

[0061] A positioning groove 61 is provided on the wall of the through hole 60, and a locking part 71 that cooperates with the positioning groove 61 is provided at the top of the claw 7. The two cooperate to realize the axial positioning of the main tube 2 at the through hole 60. The bottom end of the claw 7 is rotatably connected to the outer wall of the main tube 2, and its rotation axis is perpendicular to the axis of the main tube 2, so that the locking part 71 can enter and exit the positioning groove 61.

[0062] An elastic element (not shown in the figure) is provided between the chuck 7 and the main unit tube 2. The elastic element provides elastic force to move the locking part 71 toward the positioning groove 61 to lock the position of the pod propulsion main unit 1 and the main unit tube 2. The elastic element can be a torsion spring and is provided at the pivot of the chuck 7 and the main unit tube 2 for easy assembly.

[0063] The traction rope 33 is connected to the top of the claw 7 to drive the claw 7 to rotate and move the locking part 71 out of the positioning groove 61.

[0064] During the descent of the pod propulsion main unit 1 and main unit tube 2, such as Figure 11 As shown, when the locking part 71 moves to the positioning groove 61, the claw 7 rotates under the action of the elastic member, causing the locking part 71 to enter the positioning groove 61, thereby locking the position of the pod propulsion main unit 1 and the main unit tube 2.

[0065] When it is necessary to raise the pod propulsion main unit 1, pull the traction rope 33, such as... Figure 12 As shown, the traction rope 33 will cause the top of the claw 7 to move closer to the main tube 2, so that the locking part 71 will disengage from the positioning groove 61. By continuing to pull the traction rope 33, the claw 7, the main tube 2 and the pod propulsion main unit 1 can be moved upward as a whole. The operator can retract the pod propulsion main unit 1 into the storage cavity 910 as needed and fix the traction rope 33 so that the pod propulsion main unit 1 is positioned in the storage cavity 910.

[0066] In this embodiment, pulling the traction rope 33 can release the position lock of the pod propulsion host 1 and drive the pod propulsion host 1 to rise. The lifting and locking can be controlled simultaneously by using the linkage between the traction rope 33 and the claw 7, which is convenient to operate.

[0067] Other structures of the pod propulsion equipment and the pod propulsion lifting device 100 can be the same as those in the first embodiment, and will not be described again here.

[0068] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A pod propulsion lifting device for installation on a waterborne carrier, characterized in that, The bottom of the water carrier is provided with a storage cavity, the bottom opening of the storage cavity is provided with a perforation at the top, and the perforation is connected to the interior of the water carrier. The pod propulsion lifting device includes a pod propulsion main unit, a main unit tube, and a lifting mechanism; the pod propulsion main unit is connected to the bottom end of the main unit tube; the main unit tube slides through the perforation along its own axis; The lifting mechanism includes a support frame, a pulley, and a traction rope. The support frame is fixed inside the cabin of the water carrier. The pulley is rotatably mounted on the support frame. One end of the traction rope is connected to the main tube, and the other end passes around the pulley and extends to one side of the support frame. It is used to drive the main tube and the pod propulsion main unit to move up and down, so that the pod propulsion main unit can enter and exit the storage cavity.

2. The pod propulsion lifting device according to claim 1, characterized in that, The support frame includes a top rod and two uprights. The two uprights are vertically arranged and their bottom ends are fixedly connected to the water carrier. The two ends of the top rod are respectively connected to the top ends of the two uprights. The pulley is rotatably mounted on the top rod.

3. The pod propulsion lifting device according to claim 2, characterized in that, The main tube is equipped with a lifting frame, and the two ends of the lifting frame are slidably connected to the two uprights respectively.

4. The pod propulsion lifting device according to claim 3, characterized in that, The lifting frame is provided with an adjustment hole, the main unit tube passes through the adjustment hole, and the lifting frame is provided with an adjustment bolt, which is used to abut against the main unit tube to adjust the relative position of the main unit tube and the lifting frame in the vertical direction.

5. The pod propulsion lifting device according to claim 1, characterized in that, The bottom of the pod propulsion main unit is fixed with a sealing plate. When the pod propulsion main unit is located in the storage cavity, the sealing plate closes the opening of the storage cavity, and the bottom surface of the sealing plate is flush with the bottom surface of the water carrier.

6. The pod propulsion lifting device according to claim 1, characterized in that, The pod propulsion lifting device also includes a guide frame, which includes a guide tube and a fixing plate. The fixing plate is fixedly connected to the water carrier, and the bottom end of the guide tube is fixedly connected to the fixing plate. The main tube movably passes through the guide tube, and a circumferential positioning structure is provided between the main tube and the guide tube.

7. The pod propulsion lifting device according to claim 6, characterized in that, The guide tube is provided with a first pin hole, and the main tube is provided with a plurality of second pin holes, which are arranged along the axial direction of the main tube; the pod propulsion lifting device also includes a locking pin, which passes through the first pin hole and the second pin hole when the first pin hole is aligned with a second pin hole to lock the position of the main tube.

8. The pod propulsion lifting device according to claim 7, characterized in that, The locking pin is provided with a handle and a convex shaft. The handle is located at one end of the locking pin, and the convex shaft is spaced apart from the handle. A notch is provided on the wall of the first pin hole for the convex shaft to pass through. When the locking pin locks the position of the main tube, the wall of the guide tube is located between the handle and the convex shaft, and the convex shaft and the notch are misaligned.

9. The pod propulsion lifting device according to claim 1, characterized in that, The pod thruster lifting device also includes a chuck seat and chucks; The claw seat is disposed on the water carrier, and the claw seat is provided with a through hole for the main tube to pass through, and a positioning groove is provided on the wall of the through hole; The top of the claw is provided with a snap-in part that mates with the positioning groove; the bottom of the claw is rotatably connected to the outer wall of the main tube, and its rotation axis is perpendicular to the axis of the main tube, so that the snap-in part can enter and exit the positioning groove. An elastic element is provided between the claw and the main tube. The elastic element is used to provide elastic force so that the locking part moves toward the positioning groove to lock the position of the pod propulsion main unit and the main tube. The traction rope is connected to the top of the claw to drive the claw to rotate and move the locking part out of the positioning groove.

10. A pod propulsion device, characterized in that, The device includes a battery, a control module, and a pod propulsion lifting device as described in any one of claims 1 to 9; the main tube of the pod propulsion lifting device is a hollow tube, through which a power line and a control line are threaded; the pod propulsion main unit of the pod propulsion lifting device is connected to the battery via the power line and to the control module via the control line.

Images