New energy ship electric propulsion device

Abstract

The application relates to the field of new energy ships, in particular to a new energy ship electric power propulsion device. An axle cavity is arranged in the electric power propulsion device body, a tail shaft is rotationally arranged in the axle cavity, a propeller blade body and a mounting piece are sequentially assembled on the tail shaft, and a connecting cavity is arranged in the tail shaft; a fixing piece is fixedly arranged on the tail shaft, a fixing cavity is arranged on the propeller blade body corresponding to the fixing piece, and a plurality of limiting rods are movably arranged on the fixing piece. In the application, the propeller blade body and the mounting piece can be fixedly assembled on the tail shaft through the meshing arrangement between the locking thread and the locking groove and the locking between the limiting rod and the limiting cavity. The opening and closing of the resistance plate can be controlled to control the ejection distance of the movable ring, so that the user can adjust the limiting rod. The disassembly and assembly of the propeller blade body are simple and convenient, and the user can operate underwater.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy ships, and particularly relates to a new energy ship electric propulsion device. BACKGROUND

[0002] The ship electric propulsion device refers to a propulsion mode in which a propeller is driven by an electric motor to propel the ship to run. The tail shaft and the propeller belong to key components of the ship electric propulsion device. The tail shaft is a shaft connecting the motor transmission mechanism and the propeller, and is responsible for transmitting the power generated by the electric motor to the propeller to generate thrust through rotation and push the ship forward.

[0003] The conventional propeller is usually installed on the tail shaft in a key groove installation, epoxy resin bonding or oil pressure sleeve connection mode. The operation steps of these installation modes are relatively troublesome and require a large amount of time. Especially in the case of replacing the propeller under water, these assembly modes are more unfavorable for replacing and maintaining the propeller. Therefore, a new energy ship electric propulsion device facilitating replacement and maintenance of the propeller is urgently needed. SUMMARY

[0004] The present application aims at solving the problems in the prior art and provides a new energy ship electric propulsion device.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] A new energy ship electric propulsion device, comprising an electric propulsion device body, wherein an axle cavity is arranged in the electric propulsion device body, a tail shaft is rotatably arranged in the axle cavity, a propeller body and a mounting piece are sequentially assembled on the tail shaft, and a connecting cavity is arranged in the tail shaft.

[0007] The fixing piece is fixedly arranged on the tail shaft, a fixing cavity corresponding to the fixing piece is arranged on the propeller body, a plurality of limiting rods are movably arranged on the fixing piece, one end of each of the limiting rods is connected with the snap ring, and a limiting cavity corresponding to the limiting rod is arranged on the mounting piece.

[0008] The movable ring is movably arranged on the tail shaft, an inner ring is fixedly arranged in the movable ring, a first spring is arranged at the rear of the inner ring, and an adjusting rod for pushing the inner ring is movably arranged on the mounting piece.

[0009] The snap piece cavity is annularly arranged on the tail shaft, an elastic snap piece for clamping the snap ring is arranged in each of the snap piece cavities, a traction rope is connected to the bottom of each of the elastic snap pieces, and a movable plate for pulling the traction rope is movably arranged in each of the snap piece cavities.

[0010] The friction chambers are arranged in a ring array on the inner ring. Side plates are movably provided on both sides of the friction chambers through a second spring, and the side plates are provided with rough surfaces and smooth surfaces.

[0011] An extension rod is movably mounted on the adjusting rod, and multiple flow-blocking plates are opened and closed on the extension rod.

[0012] Furthermore, in a preferred configuration, the fixing member has multiple limiting rod cavities, each limiting rod is adapted to move within a limiting rod cavity, the propeller blade body has a corresponding through cavity for each limiting rod, the mounting member has a corresponding limiting cavity for each limiting rod, one end of each limiting rod is fixedly connected to a retaining ring, the retaining ring is adapted to move on the tail shaft, the inner wall of the retaining ring has a corresponding retaining groove for each elastic retaining element, and the retaining ring and the movable ring are adapted to attract each other.

[0013] Furthermore, in a preferred configuration, the propeller blade body has a middle tail shaft cavity adapted to the tail shaft, the middle tail shaft cavity and the through cavity are both connected to the fixed cavity, the mounting component has an outer tail shaft cavity adapted to the tail shaft, the inner wall of the outer tail shaft cavity is provided with a locking thread, and the end of the tail shaft is adapted to the locking thread with a locking screw groove.

[0014] Furthermore, in a preferred configuration, the mounting component has an adjustment cavity, an adjustment rod is movably disposed within the adjustment cavity, and a connecting cavity is provided on the tail shaft corresponding to the adjustment rod.

[0015] Furthermore, in a preferred configuration, an inner ring is fixedly installed inside the movable ring by multiple connecting rods, and an inner cavity is adapted to be opened inside the tail shaft corresponding to the connecting rods and the inner ring. A spring cavity is opened at the end of the tail shaft located in the inner cavity, and a first spring is installed in the spring cavity facing the inner cavity. The other end of the first spring is connected to the inner ring, and one end of the inner cavity is connected to the spring cavity, while the other end is connected to the connecting cavity.

[0016] In addition, a preferred structure is that each of the card cavities is provided with an outwardly extending elastic card, and the bottom of each elastic card is provided with a downwardly extending traction rope, and the other end of each traction rope is connected to the bottom of the card cavity.

[0017] In addition, in a preferred configuration, each of the card cavities is movably provided with a movable plate, and each traction rope is adapted to pass through the through hole on the movable plate. Each movable plate is equipped with a plurality of second springs at one end, and the other end of each second spring is connected to the inner wall of the card cavity. The other end of each movable plate extends out of the card cavity and into the inner cavity.

[0018] Furthermore, in a preferred configuration, each of the inner ring's corresponding movable plates is fitted with a through friction cavity, and each friction cavity has a side cavity on both sides. Multiple third springs are installed on the inner walls of the side cavities facing the friction cavity, and the other ends of the third springs are connected to the side plates. The side plates are respectively provided with rough surfaces and smooth surfaces, and a transition slope is provided between the rough surfaces and the smooth surfaces.

[0019] Furthermore, in a preferred configuration, one end of the adjusting rod has an inwardly opening storage cavity, the extension rod is adapted to be stored in the storage cavity, the end of the storage cavity has an internal thread groove, and the two ends of the extension rod are respectively provided with a first external thread and a second external thread corresponding to the internal thread groove.

[0020] In addition, a preferred structure is that the extension rod has multiple storage slots on one side of the first external thread, and each storage slot has a baffle plate rotatably installed in it via a rotating hinge. A suitable adjusting ring is fitted on the outer side of the extension rod on the first external thread, and a handle is fixedly installed at the end of the extension rod.

[0021] The beneficial effects of this invention are as follows: by the meshing between the locking thread and the locking groove, and in conjunction with the locking between the limiting rod and the limiting cavity, the propeller blade body and the mounting parts can be fixedly assembled on the tail shaft. By controlling the opening and closing of the baffle plate, the pop-out distance of the movable ring can be controlled, so that the user can adjust the limiting rod. This method of disassembling and assembling the propeller blade body is simple and convenient, and is easy for the user to operate underwater. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a new energy ship electric propulsion device proposed in this invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the propeller blade body, mounting components, and adjusting rod after they have been removed;

[0024] Figure 3 This is a schematic diagram showing the disassembled structure of the propeller blade body, mounting component, adjusting rod, and tail shaft proposed in this invention.

[0025] Figure 4 This is a schematic diagram of the structure of the propeller blade body proposed in this invention;

[0026] Figure 5 This is a schematic diagram of the structure of the mounting component proposed in this invention;

[0027] Figure 6 This is a schematic diagram of the tail shaft and movable ring proposed in this invention;

[0028] Figure 7 for Figure 6A schematic diagram of the structure after the movable ring and retaining ring are hidden;

[0029] Figure 8 for Figure 7 A schematic diagram of the internal structure of the tail shaft;

[0030] Figure 9 This is a schematic diagram of the structure of the first spring, movable ring, retaining ring, adjusting rod, and elastic locking element proposed in this invention.

[0031] Figure 10 This is a schematic diagram of the card cavity structure proposed in this invention;

[0032] Figure 11 for Figure 10 A schematic diagram of the structure after the flexible locking component is retracted;

[0033] Figure 12 This is a schematic diagram of the structure of the movable ring proposed in this invention;

[0034] Figure 13 This is a schematic diagram of the internal structure of the friction cavity proposed in this invention;

[0035] Figure 14 This is a schematic diagram of the side plate structure proposed in this invention;

[0036] Figure 15 This is a schematic diagram of the clasp structure proposed in this invention;

[0037] Figure 16 This is a schematic diagram of the adjusting rod proposed in this invention;

[0038] Figure 17 for Figure 16 A schematic diagram of the exploded structure between the adjusting rod and the extension rod in the middle;

[0039] Figure 18 for Figure 17 A schematic diagram of the structure after the baffle plate is opened.

[0040] In the diagram: 1. Electric propulsion unit body; 2. Propeller blade body; 21. Tail shaft cavity; 22. Through cavity; 23. Fixed cavity; 3. Mounting component; 31. Adjustment cavity; 32. Limiting cavity; 33. Outer tail shaft cavity; 331. Locking thread; 4. Adjusting rod; 41. Internal thread groove; 411. First external thread; 412. Second external thread; 42. Extension rod; 421. Storage groove; 422. Baffle plate; 43. Handle; 431. Adjusting ring; 5. Tail shaft; 51. Connecting cavity; 52. Fixed component, 521 limiting rod cavity, 522 limiting rod, 523 retaining ring, 524 retaining groove, 53 inner cavity, 54 spring cavity, 541 first spring, 55 retaining cavity, 551 elastic retaining, 552 traction rope, 56 movable plate, 561 second spring, 57 locking screw groove, 6 movable ring, 61 connecting rod, 62 inner ring, 63 friction cavity, 64 side cavity, 65 side plate, 651 rough surface, 652 smooth surface, 66 third spring. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0042] See Figures 1-2 The electric propulsion device body 1 has a shaft cavity, within which a tail shaft 5 is rotatably mounted. A propeller blade body 2 and a mounting component 3 are sequentially assembled on the tail shaft 5. The electric propulsion device body 1 contains an electric motor that converts electrical energy into mechanical energy and outputs it to a transmission mechanism. This transmission mechanism drives the tail shaft 5 to rotate, thereby rotating the propeller blade body 2 to achieve propulsion. It is worth noting that the specific transmission structure within the electric propulsion device body 1 and the specific propulsion structure of the propeller blade body 2 are existing technologies and are not related to the technical problem of quickly assembling and disassembling the propeller blade body 2 that needs to be addressed in this technical solution; therefore, they will not be elaborated upon further.

[0043] The electric propulsion device body 1 is equipped with a matching sealing structure corresponding to the tail shaft 5 to prevent external water from entering the electric propulsion device body 1 through the gaps in the tail shaft 5. This is prior art and will not be described in detail.

[0044] See Figures 2-7 15. An integrally formed fixing member 52 is provided on the tail shaft 5, and a fixing cavity 23 is adapted to fit the fixing member 52 on the propeller blade body 2. Through the adaptation between the fixing member 52 and the fixing cavity 23, the propeller blade body 2 and the tail shaft 5 can be connected together so that the propeller blade body 2 can rotate synchronously with the tail shaft 5.

[0045] The propeller blade body 2 has a middle tail shaft cavity 21 adapted to the tail shaft 5, and the mounting part 3 has an outer tail shaft cavity 33 adapted to the tail shaft 5. The inner wall of the outer tail shaft cavity 33 is provided with a locking thread 331, and the end of the tail shaft 5 is provided with a locking screw groove 57 adapted to the locking thread 331.

[0046] The fixing member 52 has multiple limiting rod cavities 521, and the limiting rods 522 are all adapted to move within the limiting rod cavities 521. The propeller blade body 2 is adapted to have through cavities 22 corresponding to the limiting rods 522. The mounting member 3 is adapted to have limiting cavities 32 corresponding to the limiting rods 522. One end of each limiting rod 522 is fixedly connected to a retaining ring 523. The retaining ring 523 is adapted to move on the tail shaft 5, and the inner wall of the retaining ring 523 is adapted to have slots 524 corresponding to the elastic retaining members 551.

[0047] When installing the propeller blade body 2 and the mounting component 3, the user simply inserts the propeller blade body 2 onto the tail shaft 5, allowing the fixing component 52 to be inserted into the fixing cavity 23. At this time, the tail shaft 5 passes through the middle tail shaft cavity 21, and the limiting rods 522 all pass through the through cavity 22. Next, the user simply assembles the mounting component 3 onto the tail shaft 5 using the locking thread 331 and locking groove 57. After the mounting component 3 is assembled, the limiting cavities 32 on the mounting component 3 are all aligned with the limiting rods 522. Then, the user simply adjusts the adjusting rod 4 to ensure that the limiting rods 522 are properly inserted into the limiting cavities 32. This locking action between the limiting rods 522 and the limiting cavities 32 prevents the mounting component 3 from rotating, thus preventing loosening between the engaging locking thread 331 and locking groove 57 and ensuring the stability of the propeller blade body 2 and the mounting component 3.

[0048] It is worth noting that guide blocks are fixedly installed on the inner wall of the limiting rod cavity 521, and guide grooves are adapted to fit the guide blocks on the limiting rod 522. The adapted arrangement between the guide blocks and guide grooves not only improves the stability of the limiting rod 522 during movement, but also limits the travel of the limiting rod 522 and prevents it from falling out of the limiting rod cavity 521.

[0049] See Figures 3-5 7-9. An adjustment cavity 31 is provided on the mounting component 3, and an adjustment rod 4 is movably disposed in the adjustment cavity 31. A connecting cavity 51 is provided on the tail shaft 5 to fit the adjustment rod 4. When the mounting component 3 is assembled on the tail shaft 5, the adjustment rod 4 and the connecting cavity 51 are aligned and fitted together.

[0050] It is worth noting that guide blocks are fixedly installed on the inner wall of the adjustment cavity 31, and guide grooves are adapted to fit the guide blocks on the adjustment rod 4. The adaptation between the guide blocks and guide grooves not only improves the stability of the adjustment rod 4 during movement, but also limits the travel of the adjustment rod 4 and prevents the adjustment rod 4 from falling out of the adjustment cavity 31.

[0051] The tail shaft 5 has an inner cavity 53, and an inner ring 62 is adapted to move within the inner cavity 53. The inner ring 62 is fixedly connected to the movable ring 6 via multiple connecting rods 61. One end of the inner cavity 53 is connected to the spring cavity 54, and the other end is connected to the connecting cavity 51. A first spring 541 is installed in the spring cavity 54 facing the inner cavity 53, and the other end of the first spring 541 is connected to the inner ring 62.

[0052] A retaining ring 523 is movably mounted on the tail shaft 5. The retaining ring 523 is fixedly connected to the limiting rod 522, and both the retaining ring 523 and the movable ring 6 are made of magnetically compatible materials. It is worth noting that the inner diameter of the retaining ring 523 is the same as the outer diameter of the tail shaft 5, and the outer diameter of the inner ring 62 is the same as the inner diameter of the inner cavity 53. This allows both the retaining ring 523 and the movable ring 6 to move stably on the tail shaft 5, and they both rotate synchronously with the tail shaft 5.

[0053] When the mounting component 3 is assembled on the tail shaft 5, the adjusting rod 4 is aligned with the connecting cavity 51. At this time, when the user pushes the adjusting rod 4, it can be pushed into the connecting cavity 51 and the inner cavity 53 in sequence. This allows the adjusting rod 4 to push the inner ring 62, thereby moving the movable ring 6.

[0054] Furthermore, both the end of the adjusting rod 4 and the inner ring 62 are made of magnetically compatible materials, which allows the adjusting rod 4 to maintain stable contact with the inner ring 62. Also, when the device is in operation, the adjusting rod 4 and the inner ring 62 can be connected together to prevent the adjusting rod 4 from protruding from the mounting component 3.

[0055] See Figure 6 , 10 -11. Multiple locking cavities 55 are arranged in a ring on the tail shaft 5. Each locking cavity 55 contains an outwardly extending elastic locking element 551, and the inner wall of the retaining ring 523 has corresponding locking grooves 524 on its inner wall. Through the interlocking of the elastic locking elements 551 and the locking grooves 524, the retaining ring 523 can be fixed, thus stably locking the limiting rod 522 within the limiting cavity 32. It is worth noting that even during the rotation of the tail shaft 5, the elastic locking elements 551 are subjected to an outward inertial force, which allows them to be more stably locked within the locking grooves 524. Therefore, the locking effect between the elastic locking elements 551 and the locking grooves 524 is quite stable.

[0056] Each of the clamping cavities 55 has a movable plate 56, and each of the traction ropes 552 is adapted to pass through the through holes on the movable plate 56. Each of the movable plates 56 has a plurality of second springs 561 installed at one end, and the other end of each second spring 561 is connected to the inner wall of the clamping cavity 55. The other end of each movable plate 56 extends out of the clamping cavity 55 and into the inner cavity 53.

[0057] When the movable plate 56 is pushed to its innermost position, the second spring 561 is compressed, and the movement of the movable plate 56 can pull the traction rope 552 to deform, thereby pulling the elastic locking member 551 through the deformation of the traction rope 552. This releases the mutual jamming between the elastic locking member 551 and the locking groove 524, at which point the locking ring 523 can move.

[0058] When the force pushing the movable plate 56 disappears, the compressed second spring 561 automatically resets due to its own elastic force. Combined with the elastic force of the elastic clip 551, it also automatically straightens the traction rope 552. Thus, the dual elastic force between the second spring 561 and the elastic clip 551 causes the movable plate 56 to automatically reset, allowing the elastic clip 551 to re-engage with the slot 524.

[0059] It is worth noting that guide blocks are fixedly installed on both sides of the movable plate 56, and guide grooves are adapted to fit the guide blocks on the inner wall of the clamping cavity 55. Through the adaptation between the guide blocks and the guide grooves, not only can the stability of the movable plate 56 be improved during the movement, but the movement stroke of the movable plate 56 can also be limited to ensure the accuracy of the movable plate 56 during the movement. Figure 10 This is the longest extension distance of the movable plate 56. Figure 11 This is the deepest distance that the movable plate 56 is pushed into.

[0060] See Figures 12-14 Each inner ring 62 has a through friction cavity 63 corresponding to the movable plate 56. Side cavities 64 are formed on both sides of each friction cavity 63, and multiple third springs 66 are installed on the inner walls of each side cavity 64 facing the friction cavity 63. The other end of each third spring 66 is connected to a side plate 65. The side plate 65 has a rough surface 651 and a smooth surface 652, and a transition slope is provided between the rough surface 651 and the smooth surface 652.

[0061] When the inner ring 62 moves toward the retaining ring 523, the movable plate 56 can be inserted into the friction cavity 63. Since the distance between the side plates 65 on both sides matches the movable plate 56, the movable plate 56 first contacts the rough surface 651 on the side plates. This allows the movable plate 56 to be pushed inward by the friction between the rough surface 651 and the movable plate 56 when the movable ring 6 moves.

[0062] When the movable plate 56 is pushed to its innermost position, it can no longer move. At this point, the movable ring 6 and the side plate 65, during their movement, can no longer push the movable plate 56, so the movable ring 6 and the side plate 65 will move directly.

[0063] As the side plate 65 moves, when the smooth surface 652 on the side plate 65 contacts the movable plate 56, the third springs 66 on both sides are compressed. At this time, the rough surfaces 651 do not contact the movable plate 56, while the smooth surface 652 does. The movable plate 56 can then automatically reset due to the elastic force of the second spring 561 and the elastic retainer 551. Furthermore, as the movable ring 6 and the side plate 65 continue to move, because the smooth surface 652 remains in contact with the movable plate 56, the side plate 65 cannot continue to push the movable plate 56 inward.

[0064] Furthermore, when the movable ring 6 and the side plate 65 retract and reset, even if the rough surface 651 contacts the movable plate 56 again, since the movable plate 56 is already on the outermost side, the friction between the rough surface 651 and the movable plate 56 cannot continue to pull the movable plate 56 out.

[0065] See Figures 16-18 One end of the adjusting rod 4 has an inwardly opening storage cavity, into which the extension rod 42 is adapted to be stored. The end of the storage cavity has an internal threaded groove 41, and both ends of the extension rod 42 are respectively provided with a matching first external thread 411 and a second external thread 412 corresponding to the internal threaded groove 41. When the user needs to store the extension rod 42 in the storage cavity within the adjusting rod 4, they only need to rotate the first external thread 411 and the internal threaded groove 41 together to achieve storage of the extension rod 42.

[0066] When the user needs to pull out the extension rod 42, simply turn the handle 43 in the opposite direction to disengage the first external thread 411 and the internal thread groove 41. Then, the user simply pulls the extension rod 42 outwards and turns the handle 43 slightly to engage the second external thread 412 and the internal thread groove 41, thus allowing the extension rod 42 to be pulled out. This method allows the extension rod 42 to be pulled out during use to ensure the correct length of the adjusting rod 4. When not in use, the extension rod 42 can be retracted to prevent an excessively long adjusting rod 4 from being exposed.

[0067] It is worth noting that the diameter of the receiving cavity is adapted to the first external thread 411 and the second external thread 412, so that the first external thread 411 and the second external thread 412 can move within the receiving cavity.

[0068] The extension rod 42 has multiple storage slots 421 on one side of the first external thread 411. Each storage slot 421 has a baffle plate 422 that is rotatably installed in it via a rotating hinge. An appropriate adjusting ring 431 is fitted on the outer side of the extension rod 42 on the first external thread 411. A handle 43 is fixedly installed at the end of the extension rod 42.

[0069] It is worth noting that the rotating hinge is a right-angle damping hinge in the prior art, so as to ensure that the baffle plate 422 will not automatically retract when opening and closing.

[0070] The inner wall of the adjusting ring 431 is provided with a threaded groove that matches the first external thread 411, so that the adjusting ring 431 can rotate on the first external thread 411. By providing the adjusting ring 431, the user can prevent the baffle plate 422 from unfolding from the receiving groove 421 by rotating one side of the adjusting ring 431 to the outside of the receiving groove 421 when the baffle plate 422 is stored in the receiving groove 421.

[0071] In this embodiment, by mounting the propeller blade body 2 onto the tail shaft 5 in the electric propulsion device body 1 and locking it with the mounting piece 3, a fixed connection between the propeller blade body 2 and the tail shaft 5 can be achieved. This assembly method for the propeller blade body 2 is simple and quick, especially convenient for users when installing in an underwater environment.

[0072] Furthermore, when the user needs to install the propeller blade body 2, they only need to insert the propeller blade body 2 onto the tail shaft 5, so that the fixing member 52 on the tail shaft 5 fits into the fixing cavity 23 on the propeller blade body 2. The end of the tail shaft 5 passes through and extends out of the middle tail shaft cavity 21 on the propeller blade body 2, and the limiting rods 522 on the fixing member 52 all pass through the through cavity 22.

[0073] The user then simply connects the outer tail shaft cavity 33 on the mounting piece 3 to the tail shaft 5, and rotates the mounting piece 3 to secure it to the tail shaft 5 through the engagement between the locking thread 331 and the locking groove 57. The mounting piece 3 secures the propeller blade body 2, preventing it from detaching from the tail shaft 5.

[0074] Furthermore, after the mounting component 3 is assembled, the limiting rods 522 are all adapted and aligned with the limiting cavity 32, and one end of the adjusting rod 4 on the mounting component 3 is adapted to be inserted into the connecting cavity 51.

[0075] At this time, the extension rod 42 on the adjusting rod 4 is in the extended state, and the baffle plate 422 is in the retracted state. The user only needs to push the handle 43 inward, thereby pushing the adjusting rod 4 through the connecting cavity 51 and into the inner cavity 53 to push the inner ring 62. In this way, the inner ring 62 can be pushed to the innermost side of the inner cavity 53 by the adjusting rod 4, and at this time the first spring 541 is compressed.

[0076] When the adjusting rod 4 is pushed to the innermost position and cannot be pushed further, the user simply needs to release the adjusting rod 4. At this time, the adjusting rod 4 no longer pushes the inner ring 62, and the inner ring 62 and the movable ring 6 can automatically pop outward by the elastic force of the first spring 541.

[0077] During the outward ejection of the movable ring 6, it can push the retaining ring 523 outward, thereby causing the limiting rod 522 to be pushed outward through the movement of the retaining ring 523, so that the limiting rod 522 can be inserted into the limiting cavity 32. When the limiting rod 522 is fully inserted into the limiting cavity 32, the retaining ring 523 is pushed to the outside of the retaining cavity 55. At this time, the elastic retaining member 551 in the retaining cavity 55 can automatically engage in the retaining groove 524 to fix the retaining ring 523. After the retaining ring 523 is locked and fixed, the movable ring 6, which has lost power, can be automatically pulled back to its original position by the elastic force of the first spring 541.

[0078] The locking mechanism between the limiting rod 522 and the limiting cavity 32 locks the mounting part 3 in place, preventing it from rotating and thus preventing loosening between the locking thread 331 and the locking groove 57. This locking structure allows for quick installation of the propeller blade body 2 and the mounting part 3. The user then simply rotates the mounting part 3. If it cannot rotate, it indicates that the limiting rod 522 and the limiting cavity 32 are properly locked together. If the mounting part 3 can rotate, it means that the limiting rod 522 and the limiting cavity 32 are not locked together, and the process should be repeated.

[0079] Finally, the user simply needs to rotate the extension rod 42 by using the handle 43 to disengage the second external thread 412 and the internal thread groove 41. The user can then push the extension rod 42 into the storage cavity. Finally, the user rotates the extension rod 42 again by using the handle 43 to engage the first external thread 411 at the other end of the extension rod 42 with the internal thread groove 41, thus fixing the extension rod 42 in the storage cavity and achieving storage. This allows the extension rod 42 to be pulled out during use to ensure the length of the adjustment rod 4, and to be stored away when not in use to prevent an excessively long adjustment rod 4 from being exposed.

[0080] Furthermore, when the user needs to disassemble and repair the propeller blade body 2, they only need to first rotate the extension rod 42 by using the handle 43 to disengage the engagement between the first external thread 411 and the internal thread groove 41. Then, the extension rod 42 can be pulled out of the storage cavity. Next, continue to rotate the extension rod 42 by using the handle 43 to engage and lock the second external thread 412 onto the internal thread groove 41, thereby achieving stable pulling out of the extension rod 42.

[0081] Next, the user simply needs to pry out all the baffles 422 in the storage slot 421 to switch the baffles 422 to the unfolded state. Then, the user simply needs to push the handle 43 inward to drive the adjusting rod 4 to push the inner ring 62 inward again, thereby compressing the first spring 541 again. When the adjusting rod 4 is pushed to the innermost side, the user simply needs to release the adjusting rod 4. At this time, the inner ring 62 and the movable ring 6 can move outward again by the elastic force of the first spring 541. However, since the baffles 422 on the extension rod 42 are in the unfolded state and are underwater, the extension rod 42 will receive greater resistance from the water flow when it resets, thus reducing the distance between the inner ring 62, the movable ring 6, and the adjusting rod 4 when they are ejected by the first spring 541.

[0082] When the ejected inner ring 62 moves to the movable plate 56, it can push the movable plate 56 inward through the rough surface 651 on the side plate 65. This, in turn, pulls the traction rope 552 through the movable plate 56, thereby pulling the locking end of the elastic clip 551 inward. This releases the mutual locking between the elastic clip 551 and the slot 524, and the retaining ring 523 is no longer fixed.

[0083] Since the movable ring 6 and the retaining ring 523 are made of compatible magnetic materials, when the retaining ring 523 is no longer fixed, it can automatically move towards the movable ring 6 and attract it. Subsequently, the movable ring 6 is pulled back to its original position by the first spring 541, causing the retaining ring 523 to move inward as well. This movement of the retaining ring 523 then causes the limiting rod 522 to move inward synchronously, releasing the mutual jamming between the limiting rod 522 and the limiting cavity 32. At this point, the mounting part 3 can be rotated. It is worth noting that because the retaining ring 523 is limited by the travel distance of the limiting rod 522, when the movable ring 6 is fully reset by the first spring 541, the retaining ring 523 cannot move that far, thus separating from the movable ring 6.

[0084] Finally, the user only needs to rotate and unscrew the mounting part 3, and then pull the propeller blade body 2 outward to remove it, thus achieving the removal of the propeller blade body 2.

[0085] In this technical solution, since the propeller blade body 2 is installed underwater, the distance between the ejected inner ring 62 and the movable ring 6 can be controlled by opening or closing the baffle plate 422 during installation. When the user needs to operate in a dock on the water, they only need to immerse the assembly in water to perform the operation.

[0086] When the baffle plate 422 is closed, the movable ring 6, which is ejected by the first spring 541, travels a relatively long distance. At this time, the retaining ring 523 can be pushed into the retaining cavity 55 and fixed through the movable ring 6, so as to achieve mutual locking between the limiting rod 522 and the limiting cavity 32.

[0087] When the flow baffle 422 is opened, due to the limitation of water flow resistance, the distance of the movable ring 6 ejected by the first spring 541 is shortened, and at this time the movable ring 6 cannot push the retaining ring 523. Furthermore, the ejected movable ring 6 can move to the movable plate 56, thereby releasing the engagement between the elastic retainer 551 and the retaining groove 524, thus releasing the fixation of the retaining ring 523. Then, the retaining ring 523 can be attracted to the movable ring 6 by magnetic attraction, thus releasing the engagement between the limiting rod 522 and the limiting cavity 32 by the movement of the retaining ring 523.

[0088] Furthermore, when the baffle plate 422 is closed, the inner ring 62 extends a relatively long distance. At this time, when the inner ring 62 extends, the movable plates 56 are all fitted into the friction chamber 63. Since the spacing between the side plates 65 on both sides matches the movable plates 56, the movable plates 56 first contact the rough surface 651 on the side plates 65. This allows the movable plates 56 to be pushed inward by the friction between the rough surface 651 and the movable plates 56 as the inner ring 62 moves.

[0089] When the movable plate 56 is pushed to its innermost position, the second spring 561 is compressed, and the traction rope 552 is bent. This allows the locking end of the elastic clip 551 to be pulled into the clip cavity 55 via the traction rope 552. At this point, the movable plate 56 cannot move further due to its travel limitation. Therefore, the movable ring 6 and the side plate 65 cannot continue to push the movable plate 56 during the movement, and thus the movable ring 6 and the side plate 65 will move directly.

[0090] As the side plate 65 continues to move, when the smooth surface 652 on the side plate 65 contacts the movable plate 56, the third springs 66 on both sides are compressed, and the side plate 65 also moves into the side cavity 64. At this time, the rough surfaces 651 do not contact the movable plate 56, while the smooth surface 652 contacts the movable plate 56, thus reducing friction. The movable plate 56 can then automatically reset due to the elastic force of the second spring 561 and the elastic clamp 551. The movable plate 56 no longer pulls the traction rope 552, and the elastic clamp 551 also automatically resets. Furthermore, as the movable ring 6 and the side plate 65 continue to move inward, because the smooth surface 652 remains in contact with the movable plate 56, the side plate 65 cannot continue to push the movable plate 56 inward.

[0091] Furthermore, when the movable ring 6 and the side plate 65 retract and reset, although the rough surface 651 contacts the movable plate 56 again, it cannot pull the movable plate 56 because the side plate 65 is moving inward at this time, so it has no effect on the elastic clip 551.

[0092] Furthermore, when the baffle plate 422 is opened, the pop-out distance of the inner ring 62 is shortened. At this time, when the inner ring 62 pops out, its pop-out distance can only support the rough surface 651 to contact the movable plate 56, but cannot support the smooth surface 652 to contact the movable plate 56.

[0093] Therefore, when the inner ring 62 pops out, it can still push the movable plate 56 inward by the friction between the rough surface 651 and the movable plate 56, and pull the elastic clip 551 downward by the movement of the movable plate 56.

[0094] However, the thrust of the inner ring 62 subsequently disappears, so the inner ring 62 is about to retract via the first spring 541. During this retraction process, since the engagement between the elastic retainer 551 and the slot 524 has been released, the retaining ring 523 can be magnetically attracted to the movable ring 6. Therefore, when the inner ring 62 is pulled back to its original position by the first spring 541, it can drive the retaining ring 523 to retract. Furthermore, after the inner ring 62 retracts, the movable plate 56 can also automatically reset.

[0095] This configuration ensures that the movable plate 56 can only be pushed inward when it is in contact with the rough surface 651, thereby pulling the elastic retainer 551. When the movable plate 56 is in contact with the smooth surface 652 or not in contact with the side plate 65, it will not be pushed and therefore will not affect the elastic retainer 551. It is worth noting that when the inner ring 62 retracts, even if the movable plate 56 is in contact with the rough surface 651, it cannot be pushed inward.

[0096] In this invention, the propeller blade body 2 and the mounting part 3 can be fixedly assembled on the tail shaft 5 by the meshing between the locking thread 331 and the locking groove 57, and the locking between the limiting rod 522 and the limiting cavity 32. By controlling the opening and closing of the flow baffle 422, the pop-out distance of the movable ring 6 can be controlled, so that the user can adjust the limiting rod 522. This method of assembling and disassembling the propeller blade body 2 is simple and convenient, and is easy for the user to operate underwater.

[0097] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A new energy ship electric propulsion device, characterized in that, Include: Electric propulsion device body (1), the shaft cavity is arranged in the electric propulsion device body (1), the tail shaft (5) is rotationally arranged in the shaft cavity, the tail shaft (5) is sequentially assembled with propeller body (2) and mounting piece (3), and the tail shaft (5) is provided with connecting cavity (51); Fixed part (52), the fixed part (52) is fixedly arranged on the tail shaft (5), the propeller body (2) is adapted to be provided with fixed cavity (23) on the fixed part (52), a plurality of limiting rods (522) are movably arranged on the fixed part (52), one end of the limiting rod (522) is fixedly connected with the snap ring (523), and the mounting piece (3) is adapted to be provided with limiting cavity (32) on the limiting rod (522); Movable ring (6), the movable ring (6) is movably arranged on the tail shaft (5), the inner ring (62) is fixedly arranged in the movable ring (6), the first spring (541) is mounted behind the inner ring (62), and the adjusting rod (4) for pushing the inner ring (62) is movably arranged on the mounting piece (3); Clamping piece cavity (55), the clamping piece cavity (55) is annularly arranged on the tail shaft (5), the elastic clamping piece (551) for clamping the snap ring (523) is mounted in the clamping piece cavity (55), the bottom of the elastic clamping piece (551) is connected with the traction rope (552), and the movable plate (56) for pulling the traction rope (552) is movably arranged in the clamping piece cavity (55); Friction cavity (63), the friction cavity (63) is annularly arranged on the inner ring (62), the side plate (65) is movably arranged on both sides of the friction cavity (63) through the second spring (561), and the rough surface (651) and the smooth surface (652) are arranged on the side plate (65); The elongated rod (42) is movably arranged on the adjusting rod (4), and a plurality of flow resistance plates (422) are movably arranged on the elongated rod (42).

2. The electric propulsion device for a new energy ship according to claim 1, characterized in that, A plurality of limiting rod cavities (521) are formed in the fixed part (52), the limiting rod (522) is movably arranged in the limiting rod cavity (521), the through cavity (22) is formed in the propeller body (2) corresponding to the limiting rod (522), the limiting cavity (32) is formed in the mounting piece (3) corresponding to the limiting rod (522), one end of the limiting rod (522) is fixedly connected with the snap ring (523), the snap ring (523) is movably arranged on the tail shaft (5), the clamping groove (524) is formed in the inner wall of the snap ring (523) corresponding to the elastic clamping piece (551), and the snap ring (523) and the movable ring (6) are adapted to be attracted.

3. The electric propulsion device for a new energy ship according to claim 1, characterized in that, The propeller body (2) is provided with a middle tail shaft cavity (21) corresponding to the tail shaft (5), the middle tail shaft cavity (21) and the through cavity (22) are communicated with the fixed cavity (23), the outer tail shaft cavity (33) is formed in the mounting piece (3) corresponding to the tail shaft (5), the locking thread (331) is arranged on the inner wall of the outer tail shaft cavity (33), and the locking screw groove (57) is formed in the end of the tail shaft (5) corresponding to the locking thread (331).

4. The electric propulsion device for a new energy ship according to claim 1, characterized in that, The adjusting cavity (31) is arranged on the mounting piece (3), the adjusting rod (4) is movably arranged in the adjusting cavity (31), and the connecting cavity (51) is correspondingly arranged on the tail shaft (5).

5. A new energy ship electric propulsion device according to claim 4, characterized in that, The inner ring (62) is movably arranged in the inner cavity (53) of the tail shaft (5) through the plurality of connecting rods (61), and the spring cavity (54) is arranged at one end of the inner cavity (53) of the tail shaft (5) and is in communication with the inner cavity (53).

6. A new energy ship electric propulsion device according to claim 5, characterized in that, The elastic clamping pieces (551) are arranged in the clamping piece cavities (55), the traction ropes (552) are arranged on the bottom of the elastic clamping pieces (551), and the other ends of the traction ropes (552) are connected with the bottom of the clamping piece cavities (55).

7. A new energy ship electric propulsion device according to claim 6, characterized in that, The movable plates (56) are movably arranged in the clamping piece cavities (55), the traction ropes (552) pass through the through holes in the movable plates (56), the second springs (561) are arranged on one end of the movable plates (56), the other ends of the second springs (561) are connected with the inner walls of the clamping piece cavities (55), the other ends of the movable plates (56) are arranged in the inner cavity (53) from the clamping piece cavities (55).

8. A new energy ship electric propulsion device according to claim 7, characterized in that, The friction cavities (63) are arranged in the inner ring (62) and are in communication with the inner ring (62), the side cavities (64) are arranged on the two sides of the friction cavities (63), the third springs (66) are arranged on the inner walls of the side cavities (64) and face the friction cavities (63), the other ends of the third springs (66) are connected with the side plates (65), the rough surfaces (651) and the smooth surfaces (652) are arranged on the side plates (65), and the transition slopes are arranged between the rough surfaces (651) and the smooth surfaces (652).

9. The electric propulsion device for a new energy ship according to claim 1, characterized in that, The receiving cavity is arranged in one end of the adjusting rod (4), the elongated rod (42) is arranged in the receiving cavity, the inner screw groove (41) is arranged at one end of the receiving cavity, and the first outer screw (411) and the second outer screw (412) are arranged on the two ends of the elongated rod (42) and correspond to the inner screw groove (41).

10. A new energy ship electric propulsion device according to claim 9, characterized in that, The plurality of receiving grooves (421) are arranged on one side of the first outer screw (411) of the elongated rod (42), the flow resistance plates (422) are rotatably arranged in the receiving grooves (421) through the rotary hinges, the adjusting ring (431) is arranged on the outer side of the first outer screw (411) of the elongated rod (42), and the handle (43) is arranged at one end of the elongated rod (42).

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