Ship propulsion device and protective cover thereof

Abstract

The invention relates to the field of ships, and discloses a ship propulsion device and a protective cover thereof.The ship propulsion device comprises a protective cover body, the outer wall of the protective cover body is fixedly connected with a waterproof shell, a filtering assembly is arranged in the protective cover body, a connecting assembly is arranged in the protective cover body, and the connecting assembly is connected with the filtering assembly; the inner wall of the protection cover body is rotationally connected with a first rotating shaft, and the outer wall of the first rotating shaft is rotationally connected to the inner wall of the waterproof shell. The protective cover body is connected with the filtering assembly through the connecting assembly, the filtering assembly is used for isolating aquatic plants, garbage and large-size impurities from internal parts of the protective cover body, and the waterproof shell ensures that a power part keeps a dry and waterless working environment, so that the internal parts of the protective cover body can be isolated from large-size garbage in water; parts in the protection cover body are prevented from being damaged to influence the propulsion speed of the ship.

Description

Technical Field

[0001] This invention relates to the field of marine technology, specifically to a ship propulsion device and its protective cover. Background Technology

[0002] A ship is a man-made means of transportation used for navigation on water. It usually relies on buoyancy to operate on or under the water and is used for purposes such as transportation, operation, military or leisure. Ships rely on the buoyancy of water to support their weight and move by means of oars, sails, propellers, water jets or other propulsion methods. Among them, the ship's propulsion device is the core part of the ship's power system, which is responsible for converting energy (such as fuel, electricity, nuclear energy or wind energy) into mechanical energy to propel the ship.

[0003] Existing ship propulsion systems use engines to drive propellers to rotate, and the blades push water to generate a reaction force that propels the ship forward. They are simple in structure and highly efficient. However, ships often need to navigate in different waters and in complex and changeable environments. During this process, ships may encounter a large amount of seaweed, plastic products, and large hard debris, all of which may collide with or entangle the propeller, causing damage to the propeller, stopping it, and thus affecting the ship's speed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a ship propulsion device and its protective cover, which solves the problem that the propeller is damaged and its rotation stops, thus affecting the ship's sailing speed, due to the impact and entanglement of aquatic plants, plastic products, and large hard debris.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a protective cover, comprising a protective cover body, a waterproof outer shell fixedly connected to the outer wall of the protective cover body, a filter assembly disposed inside the protective cover body, a connecting assembly disposed inside the protective cover body, the connecting assembly being connected to the filter assembly, and a rotating shaft rotatably connected to the inner wall of the protective cover body, the outer wall of the rotating shaft rotatably connected to the inner wall of the waterproof outer shell.

[0006] Preferably, the filter assembly includes a mounting block, the outer wall of which is disposed on the inner wall of the protective cover body, a filter screen is fixedly connected inside the mounting block, and the mounting block is connected to a connecting assembly.

[0007] Preferably, the connecting component includes a locking block, the outer wall of which is disposed inside the protective cover body, a rotating block is fixedly connected to the outer wall of the locking block, a rotating shaft is rotatably connected to the inner wall of the rotating block, a fixing block is fixedly connected to the outer wall of the rotating shaft, a handle is provided on the outer wall of the rotating block, and a connecting screw is fixedly connected to the outer wall of the handle.

[0008] Preferably, the outer wall of the fixing block is fixedly connected to the outer wall of the mounting block, and the outer wall of the connecting screw is threadedly connected to the inside of the protective cover body.

[0009] Preferably, in a ship propulsion device, the protective cover is connected to a drive motor, the output end of the drive motor is provided with a transmission component, the transmission component is connected to a rotating shaft, and the outer wall of the rotating shaft is provided with a rotating component.

[0010] Preferably, the transmission assembly includes a transmission column, the top end of which is disposed at the output end of the drive motor, a bevel gear one is fixedly connected to the bottom end of the transmission column, a bevel gear two is meshed with the tooth end of the bevel gear one, and the outer wall of the bevel gear two is fixedly connected to the outer wall of the rotating shaft one.

[0011] Preferably, the rotating assembly includes a second rotating shaft, the right outer wall of which is fixedly connected to the outer wall of a first rotating shaft, and a propeller is fixedly connected to the side wall of the second rotating shaft.

[0012] Preferably, a support frame is fixedly connected to the left outer wall of the second rotating shaft, a support ring is fixedly connected to the outer wall of the support frame, and a support ring is fixedly connected to the outer wall of the support frame.

[0013] Preferably, a blade block 1 is fixedly connected to the outer wall of the first support ring, and a blade block 2 is fixedly connected to the outer wall of the second support ring.

[0014] Preferably, both the first and second blades are made of stainless steel, and the tops of both the first and second blades are acute-angled.

[0015] Working principle: The protective cover body is connected to the filter assembly through the connecting component. The filter assembly is used to isolate aquatic plants, debris and large impurities from the internal parts of the protective cover body. The waterproof shell ensures that the power unit maintains a dry and water-free working environment and is not damaged by impurities. In this way, the internal parts of the protective cover body can be isolated from large debris in the water, avoiding damage to the internal parts of the protective cover body and affecting the propulsion of the ship.

[0016] By rotating the handle, the connecting screw is driven to rotate, and then the rotating block is moved to rotate the locking block. The locking block then disengages from the inside of the protective cover. The rotating block has a groove slightly larger than the handle inside, so the handle no longer restricts the movement of the rotating block. The rotating block can then pass through the handle surface, and the mounting block can be removed from the protective cover. This allows users to easily maintain and replace broken filters regularly, and also makes it convenient for users to clean the propeller and remove surface rust.

[0017] By starting the drive motor to drive the transmission column to rotate, bevel gear one rotates under the drive of the transmission column, then bevel gear two rotates under the drive of bevel gear one, and then shaft one rotates inside the waterproof shell under the drive of bevel gear two. Then shaft two rotates under the drive of shaft one, and then the propeller rotates synchronously under the drive of shaft two. This assists the drive motor in regulating the speed and prevents shaft one from being damaged when regulating the speed. This ensures that the drive motor can operate underwater, facilitates the drive motor in regulating the rotation speed of the rotating components, and avoids damage to the rotating components caused by excessively rapid changes in rotation speed.

[0018] The support frame is driven to rotate by the second rotating shaft. At this time, the first support ring rotates under the drive of the support frame, and then the first cutter block rotates under the drive of the first support ring. Subsequently, the second support ring rotates under the drive of the support frame, and the second cutter block rotates under the drive of the second support ring. Then, the first and second cutters cut and crush the aquatic plants, plastic products, etc. wrapped around the surface of the filter screen. The crushed impurities are then thrown off the surface of the filter screen by the vortex generated by the rotation of the propeller. This can prevent the surface of the filter screen from being blocked by aquatic plants, reduce the number of times the filter screen is cleaned, save labor and time costs, and at the same time ensure that the water flows through the filter screen to the propeller, avoiding water flow obstruction caused by filter screen blockage and ensuring the propeller propulsion efficiency.

[0019] This invention provides a ship propulsion device and its protective cover. It has the following beneficial effects: 1. The present invention connects the protective cover body and the filter assembly through a connecting component. The filter assembly is used to isolate aquatic plants, garbage and large impurities from the propeller, thereby achieving the effect of isolating the propeller from large garbage in the water and avoiding damage to the internal parts of the protective cover body and affecting the propulsion of the ship.

[0020] 2. This invention drives the connecting screw to rotate by rotating the handle, and then moves the rotating block to rotate the locking block. The locking block then disengages from the inside of the protective cover body, and the rotating block passes through the surface of the handle. At this time, the mounting block can be removed from the protective cover body, which allows the user to clean and replace the filter screen in a timely manner, and also allows the user to clean the propeller and remove surface rust stains.

[0021] 3. By starting the drive motor to drive the transmission column to rotate, bevel gear one rotates under the drive of the transmission column, then bevel gear two rotates under the drive of bevel gear one, and then shaft one rotates inside the waterproof shell under the drive of bevel gear two. This can ensure that the drive motor can operate underwater, facilitate the control of the rotation speed of the drive motor and avoid damage to the rotation components caused by excessively rapid changes in rotation speed.

[0022] 4. This invention drives the support frame to rotate via the second rotating shaft. At this time, the first support ring rotates under the drive of the support frame, and then the first blade rotates under the drive of the first support ring. This can prevent the filter screen surface from being blocked by aquatic plants, reduce the number of times the filter screen needs to be cleaned, save manpower and time, avoid water flow obstruction due to filter screen blockage, and ensure propeller propulsion efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure proposed in this invention; Figure 2 This is a cross-sectional schematic diagram of the internal structure of the waterproof outer shell proposed in this invention; Figure 3 This is a schematic diagram of a partial structure of the rotating shaft proposed in this invention; Figure 4 This is a partial structural diagram of the support frame proposed in this invention; Figure 5 This is a partial structural diagram of the mounting block proposed in this invention; Figure 6 This is a schematic diagram of a partial structure of the card block proposed in this invention; Figure 7 This is a schematic diagram of a partial structure of the grip proposed in this invention; Figure 8 This is a schematic diagram of a partial structure of the filter screen proposed in this invention.

[0024] The components include: 1. Waterproof outer shell; 2. Drive motor; 3. Transmission assembly; 31. Transmission column; 32. Bevel gear one; 33. Bevel gear two; 4. Rotating shaft one; 5. Protective cover body; 6. Rotating assembly; 61. Rotating shaft two; 62. Propeller; 7. Filter assembly; 71. Mounting block; 72. Filter screen; 8. Connecting assembly; 81. Fixing block; 82. Rotating shaft three; 83. Rotating block; 84. Locking block; 85. Handle; 86. Connecting screw; 9. Support frame; 10. Support ring one; 11. Support ring two; 12. Blade block one; 13. Blade block two. Detailed Implementation

[0025] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see the appendix Figure 1 - Appendix Figure 3This invention provides a protective cover, including a protective cover body 5, a waterproof outer shell 1 fixedly connected to the outer wall of the protective cover body 5, a filter assembly 7 disposed inside the protective cover body 5, a connecting assembly 8 disposed inside the protective cover body 5, the connecting assembly 8 being connected to the filter assembly 7, and a rotating shaft 4 rotatably connected to the inner wall of the protective cover body 5, the outer wall of the rotating shaft 4 being rotatably connected to the inner wall of the waterproof outer shell 1. Specifically, the protective cover body 5 is connected to the filter assembly 7 via the connecting component 8. The filter assembly 7 is used to isolate aquatic plants, debris, and large impurities from the internal parts of the protective cover body 5, thereby isolating the internal parts of the protective cover body 5 from large debris in the water and preventing damage to the internal parts of the protective cover body 5 from affecting the ship's propulsion.

[0027] See appendix Figure 5 and attached Figure 8 The filter assembly 7 includes a mounting block 71, the outer wall of which is disposed on the inner wall of the protective cover body 5, and a filter screen 72 is fixedly connected inside the mounting block 71. The mounting block 71 is connected to the connecting assembly 8. Specifically, mounting block 71 provides a mounting point for filter screen 72, which in turn isolates impurities outside the protective cover body 5.

[0028] See appendix Figure 5 - Appendix Figure 7 The connecting component 8 includes a locking block 84, the outer wall of which is located inside the protective cover body 5. A rotating block 83 is fixedly connected to the outer wall of the locking block 84. A rotating shaft 82 is rotatably connected to the inner wall of the rotating block 83. A fixing block 81 is fixedly connected to the outer wall of the rotating shaft 82. A handle 85 is provided on the outer wall of the rotating block 83. A connecting screw 86 is fixedly connected to the outer wall of the handle 85. The outer wall of the fixing block 81 is fixedly connected to the outer wall of the mounting block 71. The outer wall of the connecting screw 86 is threadedly connected to the inside of the protective cover body 5. Specifically, by rotating the handle 85, since the connecting screw 86 is fixedly connected to the handle 85, the connecting screw 86 rotates 90 degrees inside the protective cover body 5 under the drive of the handle 85. Then, the rotating block 83 is turned to drive the locking block 84 to rotate around the rotating shaft 82, thereby disengaging the locking block 84 from the inside of the protective cover body 5. The inside of the protective cover body 5 has a groove slightly larger than the locking block 84 to prevent the locking block 84 from getting stuck inside the protective cover body 5 when rotating, making it easy to remove the locking block 84 from the protective cover body 5. The inside of the rotating block 83 has a groove slightly larger than the handle 85. With a slightly larger groove, the handle 85 no longer restricts the movement of the rotating block 83. The rotating block 83 then passes through the surface of the handle 85 using the groove. The fixing block 81 provides a mounting fulcrum for the rotating shaft 82. At this time, the mounting block 71 is no longer fixed to the inside of the protective cover body 5. The mounting block 71 can then be removed, thus achieving the purpose of quickly installing and removing the control mounting block 71 and the filter screen 72. This allows users to conveniently maintain and replace the filter screen 72 regularly, and also facilitates the cleaning and removal of surface rust from the propeller 62.

[0029] See appendix Figure 2 A ship propulsion device, wherein a protective cover is connected to a drive motor 2, a transmission assembly 3 is provided at the output end of the drive motor 2, the transmission assembly 3 is connected to a rotating shaft 4, and a rotating assembly 6 is provided on the outer wall of the rotating shaft 4. Specifically, the drive motor 2 drives the transmission assembly 3 to operate. The transmission assembly 3 drives the rotating shaft 4 to rotate inside the waterproof housing 1, assisting the drive motor 2 in regulating its speed and preventing damage to the rotating shaft 4 during speed control. The transmission assembly 3 also changes the direction of rotation. The waterproof housing 1 protects the drive motor 2 and isolates it from the water source, while providing a mounting point for the drive motor 2. Then, the rotating assembly 6 operates under the drive of the rotating shaft 4. The rotating assembly 6 applies a backward thrust to the water. Since forces are reciprocal, the water generates a forward reaction force of equal magnitude and opposite direction on the rotating assembly 6. This reaction force propels the ship forward, thus ensuring that the drive motor 2 can operate underwater, facilitating the drive motor 2 in regulating the rotation speed of the rotating assembly 6, and thus smoothly controlling the ship's propulsion speed, preventing damage to the rotating assembly 6 due to excessively rapid changes in rotation speed.

[0030] See appendix Figure 2 The transmission assembly 3 includes a transmission column 31, the top of which is located at the output end of the drive motor 2, and a bevel gear 32 is fixedly connected to the bottom of the transmission column 31. The tooth ends of the bevel gear 32 are meshed with a bevel gear 33, and the outer wall of the bevel gear 33 is fixedly connected to the outer wall of the rotating shaft 4. Specifically, the drive motor 2 drives the transmission column 31 to rotate. Since the transmission column 31 is fixedly connected to the first bevel gear 32, the first bevel gear 32 rotates under the drive of the transmission column 31. Then, the second bevel gear 33 rotates under the drive of the first bevel gear 32. Since the second bevel gear 33 is fixedly connected to the first rotating shaft 4, the first rotating shaft 4 rotates inside the waterproof housing 1 under the drive of the second bevel gear 33.

[0031] See appendix Figure 3 The rotating assembly 6 includes a second rotating shaft 61, the right outer wall of the second rotating shaft 61 is fixedly connected to the outer wall of the first rotating shaft 4, and a propeller 62 is fixedly connected to the side wall of the second rotating shaft 61. Specifically, since the second shaft 61 is fixedly connected to the first shaft 4, the second shaft 61 rotates under the drive of the first shaft 4. Since the second shaft 61 is used for fixed connection to the propeller 62, the propeller 62 rotates synchronously under the drive of the second shaft 61.

[0032] See appendix Figure 3 and attached Figure 4 A support frame 9 is fixedly connected to the outer wall of the left side of the rotating shaft 2 61. A support ring 10 is fixedly connected to the outer wall of the support frame 9. A support ring 2 11 is fixedly connected to the outer wall of the support frame 9. A blade block 12 is fixedly connected to the outer wall of the support ring 10. A blade block 2 13 is fixedly connected to the outer wall of the support ring 2 11. Specifically, since support frame 9 is fixedly connected to rotating shaft 61, support frame 9 rotates synchronously under the drive of rotating shaft 61. Since support ring 10 is fixedly connected to support frame 9, support ring 10 rotates under the drive of support frame 9. Since blade block 12 is fixedly connected to support ring 10, blade block 12 rotates under the drive of support ring 10. Since support ring 11 is fixedly connected to support frame 9, support ring 11 rotates under the drive of support frame 9. Since blade block 13 is fixedly connected to support ring 11, blade block 13 rotates under the drive of support ring 11. Subsequently, blade block 12... The blade 13 cuts and crushes the aquatic plants, plastic products, etc. wrapped around the surface of the filter screen 72, and throws the crushed impurities off the surface of the filter screen 72 through the vortex generated by the rotation of the propeller 62. This can prevent the surface of the filter screen 72 from being blocked by aquatic plants, alleviate the blockage of the filter screen 72, reduce the number of times the filter screen 72 needs to be cleaned, and save labor and time costs. At the same time, it ensures that the water flows through the filter screen 72 to the propeller 62, and avoids water flow obstruction caused by the filter screen 72 being blocked. This ensures the propulsion efficiency of the propeller 62 and ensures the normal navigation of the ship.

[0033] See appendix Figure 4 Both blade 12 and blade 213 are made of stainless steel, and the tops of both blade 12 and blade 213 are acute-angled. Specifically, filter screen 72, blade 12, and blade 2 13 are all made of stainless steel. Stainless steel is corrosion-resistant, high-strength, and wear-resistant, which allows filter screen 72, blade 12, and blade 2 13 to adapt to different aquatic environments and resist the erosion of seawater, the rust of freshwater, and the corrosive effects of other chemicals. This ensures that filter screen 72, blade 12, and blade 2 13 will not be damaged by corrosion during long-term use, thus extending their service life.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective cover, comprising a protective cover body (5), characterized in that, The outer wall of the protective cover body (5) is fixedly connected to a waterproof shell (1). A filter assembly (7) is provided inside the protective cover body (5). A connecting assembly (8) is provided inside the protective cover body (5). The connecting assembly (8) is connected to the filter assembly (7). A rotating shaft (4) is rotatably connected to the inner wall of the protective cover body (5). The outer wall of the rotating shaft (4) is rotatably connected to the inner wall of the waterproof shell (1).

2. The protective cover according to claim 1, characterized in that, The filter assembly (7) includes a mounting block (71), the outer wall of which is disposed on the inner wall of the protective cover body (5), and a filter screen (72) is fixedly connected inside the mounting block (71). The mounting block (71) is connected to the connecting assembly (8).

3. A protective cover according to claim 1, characterized in that, The connecting component (8) includes a locking block (84), the outer wall of which is disposed inside the protective cover body (5). A rotating block (83) is fixedly connected to the outer wall of the locking block (84). A rotating shaft (82) is rotatably connected to the inner wall of the rotating block (83). A fixing block (81) is fixedly connected to the outer wall of the rotating shaft (82). A handle (85) is provided on the outer wall of the rotating block (83). A connecting screw (86) is fixedly connected to the outer wall of the handle (85).

4. A protective cover according to claim 3, characterized in that, The outer wall of the fixing block (81) is fixedly connected to the outer wall of the mounting block (71), and the outer wall of the connecting screw (86) is threadedly connected to the inside of the protective cover body (5).

5. A ship propulsion device, comprising a protective cover as described in any one of claims 1-4, characterized in that, The protective cover is connected to a drive motor (2), and the output end of the drive motor (2) is provided with a transmission component (3). The transmission component (3) is connected to a rotating shaft (4), and the outer wall of the rotating shaft (4) is provided with a rotating component (6).

6. A ship propulsion device according to claim 5, characterized in that, The transmission assembly (3) includes a transmission column (31), the top of which is located at the output end of the drive motor (2), and a bevel gear (32) is fixedly connected to the bottom end of the transmission column (31). The tooth end of the bevel gear (32) is meshed with a bevel gear (33), and the outer wall of the bevel gear (33) is fixedly connected to the outer wall of the rotating shaft (4).

7. A ship propulsion device according to claim 6, characterized in that, The rotating assembly (6) includes a second rotating shaft (61), the right outer wall of which is fixedly connected to the outer wall of the first rotating shaft (4), and a propeller (62) is fixedly connected to the side wall of the second rotating shaft (61).

8. A ship propulsion device according to claim 7, characterized in that, A support frame (9) is fixedly connected to the left outer wall of the second rotating shaft (61), a support ring (10) is fixedly connected to the outer wall of the support frame (9), and a support ring (11) is fixedly connected to the outer wall of the support frame (9).

9. A ship propulsion device according to claim 8, characterized in that, The outer wall of the first support ring (10) is fixedly connected to the first blade block (12), and the outer wall of the second support ring (11) is fixedly connected to the second blade block (13).

10. A ship propulsion device according to claim 9, characterized in that, Both the first (12) and the second (13) blades are made of stainless steel, and the tops of both the first (12) and the second (13) blades are acute-angled.

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