A marine propeller anti-winding protection device

CN224810892UActive Publication Date: 2026-09-29SHANDONG MINGXING MARINE EQUIPMENT CO LTD
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Patent Information

Application Number
CN202521966042.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-12
Publication Date
2026-09-29
Estimated Expiration
2035-09-12

AI Technical Summary

Technical Problem

[0004]本实用新型要解决的技术问题是:在保护罩表面缠绕杂物后,杂物会对保护罩表面的通孔进行阻挡,导致影响螺旋桨处的水流进行流动,从而导致发生影响螺旋桨防缠绕保护装置使用效果的问题

Benefits of technology

[0014]通过使用清理装置,可以使用清理刷,来对保护罩表面的杂物进行清理去除,且用刀片来对部分尺寸较大的水草等杂物进行切割分散,使清理刷更好地对保护罩表面的杂物进行清理,避免杂物会对保护罩表面的通孔进行阻挡,导致影响螺旋桨处水流进行流动的情况发生,从而提升螺旋桨防缠绕保护装置的使用效果。

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Abstract

The utility model provides a kind of marine propeller anti-winding protection device, it is related to ship technology field, the utility model includes protective cover and the propeller in protective cover inside, the first bolt is equipped in protective cover side, the first bolt is inserted in protective cover side, to be fixed with propeller, cleaning device is equipped in protective cover side, cleaning device is cleaned by cleaning brush, to the sundries winding on the surface of protective cover, the utility model can use cleaning brush by using cleaning device, to the sundries on the surface of protective cover is cleaned and removed, and blade is cut to the sundries such as part size larger aquatic plant and disperses, make cleaning brush better to the sundries on the surface of protective cover is cleaned, avoid sundries to be blocked to the through-hole on the surface of protective cover, lead to the situation of influence propeller water flow to flow occurs, to improve the use effect of propeller anti-winding protection device.
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Description

Technical Field

[0001] This utility model relates to the field of shipbuilding, and in particular to a marine propeller anti-entanglement protection device. Background Technology

[0002] A propeller anti-entanglement protection device is a device used to prevent propellers from getting entangled in debris in the water. It is commonly found on water vehicles such as ships and yachts.

[0003] When a ship's propeller is in use in water, the anti-entanglement protection device's protective cover is fixed to the ship near the propeller using a first bolt. The cover protects the propeller, preventing it from contacting objects in the water during operation and reducing entanglement accidents. However, if debris becomes entangled on the protective cover's surface, it can block the openings, affecting water flow at the propeller and thus compromising the effectiveness of the anti-entanglement protection device. Utility Model Content

[0004] The technical problem this invention aims to solve is that when debris gets entangled on the surface of the protective cover, it blocks the through holes on the surface of the protective cover, affecting the water flow at the propeller and thus affecting the effectiveness of the propeller anti-entanglement protection device.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a marine propeller anti-entanglement protection device, including a protective cover and a propeller inside the protective cover. A first bolt is provided on one side of the protective cover, and the first bolt is inserted into the protective cover to fix it to the propeller. A cleaning device is provided on one side of the protective cover, and the cleaning device uses a cleaning brush to clean the debris entangled on the surface of the protective cover.

[0006] Preferably, the cleaning device includes a fixing plate, a motor, a connecting plate, a second bolt, a placement plate, a spring, and a cleaning brush. The fixing plate is disposed on one side of the protective cover, and the motor is disposed on one side of the fixing plate. The output end of the motor is connected to the connecting plate. The second bolt is inserted into one side of the placement plate to fix it to the connecting plate. The two ends of the spring are respectively connected to the placement plate and the cleaning brush. The spring compresses the cleaning brush so that the bristles of the cleaning brush fit against the protective cover. The cleaning brush is L-shaped, and the size of the cleaning brush is adapted to the size of the protective cover.

[0007] Preferably, a limiting rod is sleeved inside the spring, one side of which is connected to the cleaning brush, and the limiting rod passes through the placement plate.

[0008] Preferably, the cleaning brush has several blades on the side near the protective cover to cut and disperse the debris wrapped around the surface of the protective cover.

[0009] Preferably, a power supply is provided on one side of the motor, and a blocking shell is provided on one side of the fixing plate to shield and protect the power supply on the motor side.

[0010] Preferably, the upper end of the connecting plate is provided with a positioning rod, which passes through the placement plate to position the placement plate on the connecting plate.

[0011] Preferably, the output end of the motor is provided with a reinforcing plate, and one side of the reinforcing plate is fixed to the connecting plate to improve the connection strength between the motor output end and the connecting plate.

[0012] Preferably, the placement plate has several anti-slip blocks on both sides to increase the friction on both sides of the placement plate.

[0013] In summary, the beneficial effects of this utility model are as follows:

[0014] By using a cleaning device, a cleaning brush can be used to remove debris from the surface of the protective cover, and a blade can be used to cut and disperse larger debris such as aquatic plants. This allows the cleaning brush to better clean the debris from the surface of the protective cover, preventing debris from blocking the openings on the surface of the protective cover and affecting the flow of water at the propeller, thereby improving the effectiveness of the propeller anti-entanglement protection device. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This utility model Figure 1 A schematic diagram of a partial three-dimensional structure;

[0018] Figure 3 This utility model Figure 1 A schematic diagram of the disassembled three-dimensional structure;

[0019] Figure 4 This utility model Figure 3 A schematic diagram of a partial three-dimensional structure;

[0020] Figure 5 This is an exploded three-dimensional structural diagram of the cleaning device of this utility model;

[0021] Figure 6 This utility model Figure 5 A partial three-dimensional structural diagram.

[0022] Legend: 1. Protective cover; 2. First bolt; 3. Propeller; 4. Cleaning device; 41. Fixing plate; 42. Motor; 43. Connecting plate; 44. Second bolt; 45. Placement plate; 46. Spring; 47. Cleaning brush; 48. Limiting rod; 49. Blade; 410. Blocking shell; 411. Positioning rod; 412. Reinforcing plate; 413. Anti-slip block. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Figures 1 to 6 The illustrated anti-entanglement protection device for a marine propeller includes a protective cover 1 and a propeller 3 inside the protective cover 1. A first bolt 2 is provided on one side of the protective cover 1, inserted into the protective cover 1 to fix it to the propeller 3. A cleaning device 4 is provided on one side of the protective cover 1, using a cleaning brush 47 to clean debris entangled on the surface of the protective cover 1. When the propeller 3 is in use in water, the first bolt 2 secures the protective cover 1 to the vessel near the propeller 3. The protective cover 1 then protects the propeller 3, preventing it from contacting objects in the water during operation and reducing entanglement accidents. The cleaning device 4 removes debris from the surface of the protective cover 1, preventing debris from blocking the openings on the surface of the protective cover 1 and affecting water flow at the propeller 3.

[0026] Figures 1 to 6The cleaning device 4 shown includes a fixing plate 41, a motor 42, a connecting plate 43, a second bolt 44, a placement plate 45, a spring 46, and a cleaning brush 47. The fixing plate 41 is located on one side of the protective cover 1, and the motor 42 is located on one side of the fixing plate 41. The output end of the motor 42 is connected to the connecting plate 43. The second bolt 44 is inserted into one side of the placement plate 45 to fix it to the connecting plate 43. The two ends of the spring 46 are connected to the placement plate 45 and the cleaning brush 47, respectively. The spring 46 compresses the cleaning brush 47, causing the bristles of the cleaning brush 47 to fit against the protective cover 1. The cleaning brush 47 is L-shaped, and its size is adapted to the size of the protective cover 1. The motor 42 is a waterproof motor, and the model can be ZXL-DX2000.

[0027] Figures 1 to 6 When using the protective cover 1, the fixing plate 41 is fixed to one side of the protective cover 1, and the placement plate 45 is moved so that the placement plate 45 contacts the connecting plate 43. Then, the second bolt 44 is rotated so that the second bolt 44 passes through the placement plate 45 and the connecting plate 43 for threaded fixation. Then, the cleaning brush 47 is fixed to the surface of the protective cover 1. When the protective cover 1 is installed on one side of the propeller 3 for use, the motor 42 fixed to one side of the fixing plate 41 is started, so that the output end of the motor 42 drives the second bolt 44 and the placement plate 45 to rotate through the connecting plate 43 fixed by the coupling. Then, the placement plate 45 rotates through both sides. A fixed spring 46 causes a cleaning brush 47 fixed on one side of the spring 46 to rotate on the surface of the protective cover 1. The spring 46 squeezes the cleaning brush 47, making the bristles of the cleaning brush 47 fit tightly against the surface of the protective cover 1. Then, the L-shaped cleaning brush 47 moves on the surface of the protective cover 1 to clean the debris on the surface of the protective cover 1. By using the cleaning device 4, the debris on the surface of the protective cover 1 can be cleaned and removed, preventing the debris from blocking the through holes on the surface of the protective cover 1 and affecting the flow of water at the propeller 3, thereby improving the effectiveness of the anti-entanglement protection device for the propeller 3.

[0028] Figures 1 to 6A limiting rod 48 is fitted inside the spring 46. One side of the limiting rod 48 is connected to the cleaning brush 47, and the limiting rod 48 passes through the placement plate 45. By fitting the limiting rod 48 inside the spring 46, fixing one side of the limiting rod 48 to the cleaning brush 47, and sliding the other side through the placement plate 45, the shape of the spring 46 is restricted, preventing the spring 46 from bending and affecting the compression of the cleaning brush 47, thereby improving the performance of the spring 46. Several blades 49 are provided on the side of the cleaning brush 47 near the protective cover 1 to cut and disperse debris wrapped around the surface of the protective cover 1. By fixing several blades 49 to the side of the cleaning brush 47 near the protective cover 1, the blades 49 can cut and disperse larger debris wrapped around the surface of the protective cover 1, allowing the cleaning brush 47 to better clean the debris on the surface of the protective cover 1.

[0029] Figures 1 to 6 The motor 42 shown has a power supply on one side, and a blocking shell 410 on the other side of the fixing plate 41 to shield and protect the power supply on the motor 42 side. The blocking shell 410 fixed to the fixing plate 41 shields and protects the power supply on the motor 42 side, preventing debris in the water from impacting and damaging the power supply. A positioning rod 411 is provided at the upper end of the connecting plate 43, passing through the placement plate 45 to position the placement plate 45 on the connecting plate 43. With the positioning plate fixed to the upper end of the connecting plate 43, when the placement plate 45 contacts the connecting plate 43, the positioning rod 411 passes through the placement plate 45 to position the placement plate 45, facilitating subsequent fixing of the placement plate 45 with the second bolt 44.

[0030] Figures 1 to 6 The output end of the motor 42 shown is equipped with a reinforcing plate 412, one side of which is fixed to the connecting plate 43 to improve the connection strength between the output end of the motor 42 and the connecting plate 43. By fixing the reinforcing plate 412 to the output end of the motor 42 and the connecting plate 43, the connection strength between the two is improved, preventing deformation at the connection point and allowing the motor 42 to better drive the connecting plate 43 to rotate. Several anti-slip blocks 413 are provided on both sides of the placement plate 45 to increase the friction on both sides of the placement plate 45. By fixing the placement plate 45 to both sides with several anti-slip blocks 413, the friction on both sides of the placement plate 45 is increased, making it easier for the operator to grasp the placement plate 45 and move it to the connecting plate 43 for installation and fixation using the second bolt 44.

[0031] Working principle: When the ship's propeller 3 is in use in the water, the first bolt 2 is used to fix the protective cover 1 of the anti-entanglement protection device to the ship near the propeller 3. Then the protective cover 1 protects the ship's propeller 3, preventing the ship's propeller 3 from contacting objects in the water during operation, reducing entanglement accidents. The cleaning device 4 is used to clean and remove debris from the surface of the protective cover 1, preventing debris from blocking the through holes on the surface of the protective cover 1 and affecting the water flow at the propeller 3. When using the protective cover 1, fix the fixing plate 41 to one side of the protective cover 1, and move the placement plate 45 so that the placement plate 45 contacts the connecting plate 43. Then rotate the second bolt 44 so that the second bolt 44 passes through the placement plate 45 and the connecting plate 43 for threaded fixation. Then fix the cleaning brush 47 to the surface of the protective cover 1. When the protective cover 1 is installed on one side of the propeller 3 for use, start the motor 42 fixed on one side of the fixing plate 41 so that the output end of the motor 42 drives the second bolt 44 and the placement plate 45 to rotate through the connecting plate 43 fixed by the coupling. Then the placement plate 45 is fixed on both sides. The spring 46 causes the cleaning brush 47, which is fixed on one side of the spring 46, to rotate on the surface of the protective cover 1. The spring 46 squeezes the cleaning brush 47, making the bristles of the cleaning brush 47 fit tightly against the surface of the protective cover 1. Then, the L-shaped cleaning brush 47 moves on the surface of the protective cover 1 to clean the debris on the surface of the protective cover 1. By using the cleaning device 4, the debris on the surface of the protective cover 1 can be cleaned and removed, preventing the debris from blocking the through holes on the surface of the protective cover 1 and affecting the flow of water at the propeller 3, thereby improving the effectiveness of the anti-entanglement protection device for the propeller 3.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or equivalent variations to the disclosed technical content and apply them to other fields. However, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, shall still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A marine propeller anti-entanglement protection device, comprising a protective cover (1) and a propeller (3) inside the protective cover (1), characterized in that: The protective cover (1) has a first bolt (2) on one side, which is inserted into the protective cover (1) to fix it to the propeller (3). The protective cover (1) has a cleaning device (4) on one side, which uses a cleaning brush (47) to clean the debris wrapped around the surface of the protective cover (1). The cleaning device (4) includes a fixing plate (41), a motor (42), a connecting plate (43), a second bolt (44), a placement plate (45), a spring (46), and a cleaning brush (47). The fixing plate (41) is set on the protective cover (1). On one side, the motor (42) is set on the side of the fixed plate (41). The output end of the motor (42) is connected to the connecting plate (43). The second bolt (44) is inserted on the side of the placement plate (45) to fix it to the connecting plate (43). The two ends of the spring (46) are connected to the placement plate (45) and the cleaning brush (47) respectively. The spring (46) squeezes the cleaning brush (47) so that the bristles of the cleaning brush (47) fit the protective cover (1). The cleaning brush (47) is L-shaped and the size of the cleaning brush (47) is adapted to the size of the protective cover (1).

2. The marine propeller anti-winding protection device according to claim 1, characterized in that: A limiting rod (48) is sleeved inside the spring (46). One side of the limiting rod (48) is connected to the cleaning brush (47), and the limiting rod (48) passes through the placement plate (45).

3. The marine propeller anti-winding protection device according to claim 2, characterized in that: The cleaning brush (47) has several blades (49) on the side near the protective cover (1) to cut and disperse the debris wrapped around the surface of the protective cover (1).

4. The marine propeller anti-winding protection device according to claim 3, characterized in that: The motor (42) has a power supply on one side, and the fixing plate (41) has a blocking shell (410) on one side to shield and protect the power supply on the motor (42).

5. The marine propeller anti-winding protection device according to claim 4, characterized in that: The upper end of the connecting plate (43) is provided with a positioning rod (411), which passes through the placement plate (45) to position the placement plate (45) on the connecting plate (43).

6. The marine propeller anti-winding protection device according to claim 5, characterized in that: The output end of the motor (42) is provided with a reinforcing plate (412), and one side of the reinforcing plate (412) is fixed to the connecting plate (43) to improve the connection strength between the output end of the motor (42) and the connecting plate (43).

7. The marine propeller anti-winding protection device according to claim 6, characterized in that: The placement plate (45) has several anti-slip blocks (413) on both sides to increase the friction on both sides of the placement plate (45).