Anti-winding mechanism for ship propeller

Abstract

The utility model relates to the technical field of ships, in particular to a ship propeller anti-winding mechanism which comprises a supporting frame, propeller blades, a protection frame, an adjusting device and a cleaning device, the multiple sets of propeller blades are annularly installed in the supporting frame, and a fixing ring is fixedly installed on the side wall of one side of the supporting frame; the cylindrical protection frame with a side opening is installed on the side wall of the side, away from the supporting frame, of the fixing ring through the adjusting device, movement of a sliding block drives an L-shaped frame to move, then the protection frame is driven to move in the direction of a threaded rod, the opening between the protection frame and the fixing ring can be adjusted, and therefore the protection effect is improved. The position of the protection frame can be flexibly adjusted according to different water area environments and navigation conditions, so that the protection effect is optimized, the speed of water flow passing through the protection frame can be affected by adjusting the position of the protection frame, the optimal water flow state can be kept easily through the proper opening size, and therefore the propelling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to an anti - entanglement mechanism for a boat propeller. Background Technique

[0002] As is well known, during the navigation of a boat, the propeller, as the core part of the propulsion system, often encounters the problem of being entangled by underwater debris (such as waterweeds, fishing nets, etc.). Once the propeller is entangled by debris, it will not only seriously affect the propulsion efficiency of the boat, but may even cause damage to the propeller or the boat to lose control, thus threatening navigation safety.

[0003] Traditional solutions usually involve installing a protective net or a protective cover outside the propeller, but this often only provides limited protection. The fixed protective device may change the water flow state, affect the working efficiency of the propeller, thus reducing the navigation speed of the boat. Moreover, once the traditional protective device is entangled by debris, it requires frequent manual cleaning, increasing the maintenance workload and cost. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides an anti - entanglement mechanism for a boat propeller.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: an anti - entanglement mechanism for a boat propeller, including a support frame, propeller blades, a protective frame, an adjusting device and a cleaning device. A plurality of groups of the propeller blades are annularly installed inside the support frame. A fixing ring is fixedly installed on one side side wall of the support frame. The side wall of the fixing ring far away from the support frame is installed with the cylindrical protective frame with a side opening through the adjusting device. A plurality of through holes are evenly arranged on the side wall of the protective frame. A plurality of fixing columns are annularly installed at one end of the protective frame far away from the side opening. The cleaning device is installed on the outer wall of the protective frame. The adjusting device includes a threaded rod, a slider, an L - shaped frame and a first motor. A rectangular groove is opened on the inner side wall of one side of the fixing ring. The threaded rod is rotatably installed in the rectangular groove. The slider is threadedly installed on the threaded rod. One end of the slider far away from the rectangular groove is installed with the L - shaped frame. One end of the L - shaped frame far away from the slider is fixedly connected with one end frame of the protective frame. One end of the threaded rod penetrates through the side wall of the fixing ring and is installed with the first motor.

[0008] In order to facilitate the regular cleaning of sundries wound around the protective frame, the present utility model is improved in that the cleaning device includes a rotating shaft, a fixed seat, a cross plate, a scraper and a second motor. The second motor is installed inside the protective frame. The output end of the second motor penetrates through the side wall of the protective frame and is installed with the rotating shaft. The end of the rotating shaft is sleeved with the fixed seat. The fixed seat is fixedly installed with the cross plate at both the left and right ends. The scraper is installed on the side walls at both the upper and lower ends of the cross plate.

[0009] In order to prevent sundries from getting stuck in the gaps of the fixed columns, the present utility model is improved in that cleaning brushes are installed at one ends of the two cross plates close to the protective frame.

[0010] In order to guide the movement of the protective frame, the present utility model is improved in that a guide groove is opened on the side wall at one end of the fixed ring far from the rectangular groove. A guide rod is fixedly installed in the guide groove. A guide block is slidably installed on the guide rod. An L-shaped plate is installed on the side wall of the guide block. The L-shaped plate is fixedly connected to the frame of the end of the protective frame far from the L-shaped frame.

[0011] Preferably, the present utility model is improved in that both the first motor and the second motor are waterproof motors.

[0012] In order to protect the first motor and the second motor, the present utility model is improved in that protective shells are installed on the outer walls of both the first motor and the second motor.

[0013] In order to ensure the stability and accuracy of the operation of the first motor and the second motor, the present utility model is improved in that both the first motor and the second motor are servo motors.

[0014] In order to facilitate the disassembly and assembly of the protective frame, the present utility model is improved in that the fixed ring and the support frame are installed and connected by bolts.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present utility model provides a boat propeller anti-winding mechanism, which has the following beneficial effects:

[0017] In this boat propeller anti-winding mechanism, through the set adjustment device, the protective frame serves as the first line of defense, which can effectively block underwater sundries such as waterweeds and fishing nets, reducing the possibility of them directly contacting and winding around the propeller, thereby protecting the propeller from damage. Through the adjustment device, the position of the protective frame can be flexibly adjusted according to actual needs, thereby changing the opening size between the protective frame and the fixed ring. In this way, according to different water area environments (such as shallow water areas, deep water areas, the amount of sundries in the water area, etc.) and different navigation requirements (such as high-speed navigation, low-speed cruising, etc.), the protection effect can be optimized.

[0018] The anti-winding mechanism of the boat propeller, through the arranged cleaning device, starts the second motor to drive the cleaning device to work. The scraper can effectively remove the sundries on the surface of the protection frame, while the cleaning brush can further clean the fine sundries that may be stuck in the gaps of the fixed columns. The cleaning process can be set to start automatically at regular intervals or manually according to actual needs, providing a flexible operation method to ensure that the protection frame is always kept clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic perspective view of the first angle of the present utility model;

[0020] Figure 2 is a schematic perspective view of the second angle of the present utility model;

[0021] Figure 3 is a schematic perspective view of the first angle of the fixing ring and the protection frame of the present utility model;

[0022] Figure 4 is a schematic perspective view of the second angle of the fixing ring and the protection frame of the present utility model.

[0023] In the figure: 1, support frame; 2, propeller blade; 3, protection frame; 4, fixing ring; 5, through hole; 6, fixing column; 7, threaded rod; 8, slider; 9, L-shaped frame; 10, first motor; 11, rectangular groove; 12, rotating shaft; 13, fixing seat; 14, cross plate; 15, scraper; 16, second motor; 17, cleaning brush; 18, guide groove; 19, guide rod; 20, guide block; 21, L-shaped plate; 22, protective shell; 23, bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-4, a boat propeller anti - entanglement mechanism, comprising a support frame 1, propeller blades 2, a protection frame 3, an adjustment device and a cleaning device. A plurality of groups of the propeller blades 2 are annularly installed inside the support frame 1. A fixing ring 4 is fixedly installed on one side wall of the support frame 1. The protection frame 3, which is cylindrical with a side opening, is installed on the side wall of the fixing ring 4 away from the support frame 1 through the adjustment device. A number of through - holes 5 are evenly arranged on the side wall of the protection frame 3. A number of fixing columns 6 are annularly installed at one end of the protection frame 3 away from the side opening. The cleaning device is installed on the outer wall of the protection frame 3. The adjustment device includes a threaded rod 7, a slider 8, an L - shaped frame 9 and a first motor 10. A rectangular groove 11 is opened on the inner side wall of one side of the fixing ring 4. The threaded rod 7 is rotatably installed in the rectangular groove 11. The slider 8 is threadedly installed on the threaded rod 7. One end of the slider 8 away from the rectangular groove 11 is installed with the L - shaped frame 9. One end of the L - shaped frame 9 away from the slider 8 is fixedly connected to the end frame of the protection frame 3. One end of the threaded rod 7 passes through the side wall of the fixing ring 4 and is installed with the first motor 10. In this embodiment, during use, the protection frame 3 can prevent underwater debris from directly contacting the propeller blades 2, reducing the risk of the propeller blades 2 being entangled. Through the adjustment device, the position of the protection frame 3 can be flexibly adjusted to adapt to different water conditions and working requirements. When the position of the protection frame 3 needs to be adjusted, the first motor 10 is started. The first motor 10 drives the threaded rod 7 to rotate. Due to the threaded fit between the threaded rod 7 and the slider 8, the rotation of the threaded rod 7 causes the slider 8 to move along the rectangular groove 11. The movement of the slider 8 drives the L - shaped frame 9 to move, and then drives the protection frame 3 to move along the direction of the threaded rod 7, realizing the adjustment of the position of the protection frame 3. The protection frame 3 can adjust the opening between it and the fixing ring 4. The water flow speed entering the interior of the protection frame 3 and the possibility of debris entering can be controlled by adjusting the opening size. The position of the protection frame 3 can be flexibly adjusted according to different water environments and navigation conditions, thereby optimizing the protection effect. Adjusting the position of the protection frame 3 can affect the speed of water flow through the protection frame 3. An appropriate opening size helps to maintain the best water flow state, thereby improving the propulsion efficiency. Through the above - mentioned adjustment mechanism, not only can the propeller be protected from damage caused by debris entanglement, but also the position of the protection frame 3 can be flexibly adjusted according to different situations, ensuring the safe and efficient operation of the boat under various water conditions. The cleaning device can regularly clean the debris on the protection frame 3, reducing the frequency of manual cleaning, improving the maintenance efficiency, and keeping the propeller free from the influence of debris, which can ensure the navigation efficiency of the boat.

[0026] During the actual use process, to further facilitate the regular cleaning of the sundries wrapped around the protection frame 3, in this embodiment, the cleaning device includes a rotating shaft 12, a fixed seat 13, a cross plate 14, a scraping knife 15 and a second motor 16. The second motor 16 is installed inside the protection frame 3. The output end of the second motor 16 penetrates through the side wall of the protection frame 3 and installs the rotating shaft 12. The end of the rotating shaft 12 is sleeved with the fixed seat 13. The left and right ends of the fixed seat 13 are both fixedly installed with the cross plate 14. The upper and lower side walls of the cross plate 14 are both installed with the scraping knife 15. When it is necessary to clean the sundries wrapped around the protection frame 3, start the second motor 16. The output end of the second motor 16 drives the rotating shaft 12 to rotate. The end of the rotating shaft 12 is sleeved with the fixed seat 13, and the cross plate 14 is installed on the fixed seat 13. As the rotating shaft 12 rotates, the fixed seat 13 and the cross plate 14 will also rotate accordingly. The upper and lower side walls of the cross plate 14 are installed with the scraping knife 15. During the rotation of the cross plate 14 along with the rotating shaft 12, the scraping knife 15 will contact and scrape off the sundries on the protection frame 3. The entire cleaning process can be set to start automatically at regular intervals or manually according to the actual situation to ensure that the protection frame 3 is always in a clean state.

[0027] During the actual use process, to further prevent sundries from getting stuck in the gaps of the fixed columns 6, in this embodiment, cleaning brushes 17 are installed at one end of the two cross plates 14 close to the protection frame 3. The cleaning brushes 17 can help remove those small sundries that may get stuck in the gaps of the fixed columns 6, ensuring a more thorough cleaning process and avoiding the corner areas that may be missed by only relying on the scraping knife 15.

[0028] During the actual use process, to further guide the movement of the protection frame 3, in this embodiment, a guiding groove 18 is opened on the side wall of the fixed ring 4 away from the rectangular groove 11. A guiding rod 19 is fixedly installed in the guiding groove 18. A guiding block 20 is slidably installed on the guiding rod 19. The side wall of the guiding block 20 is installed with an L-shaped plate 21. The L-shaped plate 21 is fixedly connected to the frame of one end of the protection frame 3 away from the L-shaped frame 9. Through the settings of the guiding groove 18, the guiding rod 19 and the guiding block 20, the protection frame 3 can move along a fixed path during the movement process, reducing the possibility of deviation or shaking, thereby improving its stability.

[0029] Preferably, in this embodiment, both the first motor 10 and the second motor 16 are waterproof motors. The waterproof motors have certain explosion-proof performance and waterproof effects. Even if they are drenched with water for a long time, water will not enter the inside of the motors, thus avoiding the occurrence of short-circuit faults.

[0030] During actual use, the first motor 10 and the second motor 16 are further protected. In this embodiment, protective shells 22 are installed on the outer walls of the first motor 10 and the second motor 16. The protective shells 22 further reduce the influence of the external environment on the motors, thereby improving the operating stability of the motors.

[0031] During actual use, the stability and accuracy of the operation of the first motor 10 and the second motor 16 are further ensured. In this embodiment, the first motor 10 and the second motor 16 are both servo motors. Servo motors can perform position, speed, and torque control with high precision. Servo motors adopt closed-loop control and have good stability, which can avoid problems such as stall and vibration, and ensure the stability and accuracy of the operation of the first motor 10 and the second motor 16.

[0032] During actual use, it is further convenient to disassemble and assemble the protective frame 3. In this embodiment, the fixed ring 4 and the support frame 1 are installed and connected by bolts 23. By the connection method of bolts 23, the support frame 1 can be quickly disassembled and installed without using welding or other permanent fixing methods, making maintenance and replacement more convenient and fast.

[0033] To illustrate in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects of this application, etc., the following will be described in detail with reference to the specific embodiments listed and in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application, so they are only examples and cannot be used to limit the protection scope of this application.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A boat propeller anti - entanglement mechanism, comprising a support frame (1), propeller blades (2), a protective frame (3), an adjustment device and a cleaning device, characterized in that: A plurality of groups of the propeller blades (2) are annularly installed inside the support frame (1). One side wall of the support frame (1) is fixedly installed with a fixing ring (4). One side wall of the fixing ring (4) far from the support frame (1) is installed with the cylindrical protection frame (3) with a side opening through the adjusting device. A plurality of through holes (5) are evenly formed in the side wall of the protection frame (3). A plurality of fixing columns (6) are annularly installed at one end of the protection frame (3) far from the side opening. The cleaning device is installed on the outer wall of the protection frame (3). The adjusting device includes a threaded rod (7), a slider (8), an L-shaped frame (9) and a first motor (10). A rectangular groove (11) is formed in one side inner wall of the fixing ring (4). The threaded rod (7) is rotatably installed in the rectangular groove (11). The slider (8) is threadedly installed on the threaded rod (7). One end of the slider (8) far from the rectangular groove (11) is installed with the L-shaped frame (9). One end of the L-shaped frame (9) far from the slider (8) is fixedly connected to one end frame of the protection frame (3). One end of the threaded rod (7) penetrates through the side wall of the fixing ring (4) and is installed with the first motor (10).

2. The anti - entanglement mechanism for a boat propeller according to claim 1, characterized in that: The cleaning device includes a rotating shaft (12), a fixing seat (13), a cross plate (14), a scraping blade (15) and a second motor (16). The second motor (16) is installed inside the protection frame (3). The output end of the second motor (16) penetrates through the side wall of the protection frame (3) and is installed with the rotating shaft (12). The fixing seat (13) is sleeved at the end of the rotating shaft (12). The cross plates (14) are fixedly installed at both the left and right ends of the fixing seat (13). The scraping blades (15) are installed on the upper and lower side walls of the cross plates (14).

3. The anti - entanglement mechanism for a boat propeller according to claim 2, characterized in that: Cleaning brushes (17) are installed at one ends of the two cross plates (14) close to the protection frame (3).

4. A boat propeller anti-entanglement mechanism according to claim 3, characterized in that: A guiding groove (18) is formed in one side wall of the fixing ring (4) far from the rectangular groove (11). A guiding rod (19) is fixedly installed in the guiding groove (18). A guiding block (20) is slidably installed on the guiding rod (19). An L-shaped plate (21) is installed on the side wall of the guiding block (20). The L-shaped plate (21) is fixedly connected to one end frame of the protection frame (3) far from the L-shaped frame (9).

5. The anti-entanglement mechanism for a boat propeller according to claim 4, characterized in that: Both the first motor (10) and the second motor (16) are waterproof motors.

6. The anti-entanglement mechanism for a boat propeller according to claim 5, characterized in that: Protection shells (22) are installed on the outer walls of both the first motor (10) and the second motor (16).

7. A boat propeller anti-entanglement mechanism according to claim 6, characterized in that: Both the first motor (10) and the second motor (16) are servo motors.

8. The anti-entanglement mechanism for a boat propeller according to claim 7, characterized in that: The fixing ring (4) and the support frame (1) are installed and connected through bolts (23).

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