Fishing net winding prevention ship propeller structure
By designing a propeller structure to prevent fishing net entanglement, and utilizing movable and cutting components to prevent fishing net entanglement, the problem of the protective cover affecting the propeller blade's drainage capacity in existing technologies has been solved, achieving a safe and non-destructive anti-entanglement effect for fishing nets.
Patent Information
- Application Number
- CN202520055378.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2035-01-10
AI Technical Summary
While existing propeller guards can prevent fishing nets from getting tangled to some extent, they can affect the propeller blades' drainage capacity and impact the ship's power.
A ship propeller structure for preventing fishing net entanglement was designed, which includes a movable component and a cutting component. The movable rod and the stop block work together to prevent the fishing net from getting entangled, and the blade cutting component cuts the fishing net.
It effectively prevents fishing nets from getting tangled in the propeller blades, while not affecting the propeller blades' drainage capacity or the ship's power, thus ensuring navigational safety.
Smart Images

Figure CN223559833U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ship propeller technical field especially is involved in a kind of anti-fishnet winding ship propeller structure. BACKGROUND
[0002] When ship sails along coast and fishing area, once the operation is careless and causes fishing net to wind propeller, it can cause the ship maneuvering ability to be limited, even parking, drift, out of control and other accident danger, seriously affect and endanger ship navigation safety.
[0003] The existing propeller when preventing fishing net winding can be equipped with protective cover on its outer surface, the protective cover can affect the drainage capacity of the blade, although it can prevent fishing net from winding on the blade to some extent, but it also affects the power of the ship, therefore, a device for preventing fishing net winding without affecting the power of the ship is needed to avoid the propeller being wound by fishing net. SUMMARY
[0004] The utility model aims at providing a kind of anti-fishnet winding ship propeller structure to solve the problem that the existing propeller in the above background art when preventing fishing net winding can be equipped with protective cover on its outer surface, the protective cover can affect the drainage capacity of the blade, although it can prevent fishing net from winding on the blade to some extent, but it also affects the power of the ship.
[0005] To solve the above technical problem, the utility model is realized by the following technical scheme:
[0006] The utility model discloses a kind of anti-fishnet winding ship propeller structure, comprising:
[0007] Propeller assembly, the propeller assembly includes ship structure and tail shaft, the tail shaft is rotatably connected to the tail of ship structure;
[0008] Movable assembly, the movable assembly includes support rod, movable rod, fixed column, telescopic spring, movable column, fixed ring and stop block;The support rod is fixedly connected to the outer surface central four around positions of tail shaft, movable rod central position is rotatably connected to the inside position of support rod upper end, fixed column is fixedly connected to the outer end outer surface four around positions of tail shaft, telescopic spring is fixedly connected to the inside position of fixed column, movable column is fixedly connected to the top end position of telescopic spring, fixed ring is fixedly connected to the outside position of ship structure, stop block is fixedly connected to the inside four around positions of fixed ring, one end of the movable rod extends to the inside of fixed ring and is located between two adjacent stop blocks.
[0009] Further, the propeller assembly further includes blade, and the blade is fixedly connected to the outer end outer surface four around positions of tail shaft.
[0010] Further, the movable column upper end is slidably connected to the movable rod at both sides, and the movable column is slidably connected to the fixed column at an inner position.
[0011] Further, the movable rod and the paddle are staggered, and the stopper is an arc structure.
[0012] Further, the cutting assembly is further included, the cutting assembly comprises a first blade, a fixed shaft, a torsional spring, a stop rod, a limiting block and a second blade, the first blade is fixedly connected to the outer surface of the tail shaft at a periphery position, the fixed shaft is rotatably connected to the outer side of the upper end of the first blade, the torsional spring is fixedly connected to the inner position of the first blade, the stop rod is fixedly connected to the fixed shaft at both sides, the limiting block is fixedly connected to the upper end of the first blade at both sides, and the second blade is fixedly connected to the outer surface of the movable rod at a periphery position.
[0013] Further, the first blade is an L-shaped structure, the inner side of the stop rod is fixedly connected to the outer end of the torsional spring, the outer end of the second blade is flush with the outer surface of the movable rod, and the orientations of the blade edge of the first blade and the blade block of the second blade are opposite.
[0014] Compared with the prior art, the utility model has the advantages that:
[0015] 1. When the tail shaft drives the paddle to rotate, the tail shaft drives the supporting rod and the movable rod to rotate, one end of the movable rod is in contact with the stopper, the supporting rod rotates inward under the block of the stopper, one end of the movable rod rotates inward, the other end rotates outward, the fishing net on the outside of the paddle is pushed outward by the movable rod, thereby effectively avoiding the fishing net from winding on the paddle, and the movable rod is small and does not affect the drainage of the paddle.
[0016] 2. Based on the beneficial effect one, when the movable rod pushes the fishing net outward, the fishing net slides along the movable rod to the ship structure, the fishing net drives the stop rod to rotate outward, the stop rod does not block the fishing net and moves to the inner side of the first blade and the outer side of the second blade, and the movable rod drives the second blade to cut the fishing net, meanwhile, the fishing net moves to the lower side of the first blade, the stop rod resets and limits the fishing net, thereby avoiding the fishing net from moving reversely. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the front view of the utility model;
[0018] Figure 2 It is the propeller assembly structure diagram of the utility model;
[0019] Figure 3 It is the movable assembly structure diagram of the utility model;
[0020] Figure 4The cutting assembly structural diagram of the utility model.
[0021] In the drawings, the component list represented by each sign is as follows:
[0022] 11, hull structure; 12, tail shaft; 13, paddle; 21, support rod; 22, movable rod; 23, fixed column; 24, extension spring; 25, movable column; 26, fixed ring; 27, stop block; 31, first blade; 32, fixed shaft; 33, torsional spring; 34, stop rod; 35, limiting block; 36, second blade. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme and advantages of the utility model more clear, the embodiments of the utility model will be described in further detail below in combination with the drawings.
[0024] Please refer to Figures 1-3 The embodiment is a fishing net winding prevention ship propeller structure, which comprises:
[0025] The propeller assembly comprises a hull structure 11 and a tail shaft 12, and the tail shaft 12 is rotationally connected to the outer side position of the hull structure 11.
[0026] The movable assembly comprises a support rod 21, a movable rod 22, a fixed column 23, an extension spring 24, a movable column 25, a fixed ring 26 and a stop block 27; the support rod 21 is fixedly connected to the central four surrounding positions of the outer surface of the tail shaft 12, the movable rod 22 is rotationally connected to the inner position of the upper end of the support rod 21, the fixed column 23 is fixedly connected to the outer end outer surface four surrounding positions of the tail shaft 12, the extension spring 24 is fixedly connected to the inner position of the fixed column 23, the movable column 25 is fixedly connected to the top end position of the extension spring 24, the fixed ring 26 is fixedly connected to the outer side position of the hull structure 11, and the stop block 27 is fixedly connected to the inner side four surrounding positions of the fixed ring 26; one end of the movable rod 22 extends into the fixed ring 26 and is located between two adjacent stop blocks 27.
[0027] The support rod 21 is used for supporting the movable rod 22, the movable rod 22 is used for stirring the fishing net, the fixed column 23 is used for guiding the movable column 25, the extension spring 24 is used for driving the movable column 25 to reset, the movable column 25 resets the movable rod 22, the fixed ring 26 is used for supporting the stop block 27, and the stop block 27 is used for blocking the movable rod 22.
[0028] The propeller assembly further comprises a paddle 13, and the paddle 13 is fixedly connected to the outer end outer surface four surrounding positions of the tail shaft 12.
[0029] The tail shaft 12 is rotationally connected to the tail of the hull structure 11, the tail shaft 12 drives the paddle 13 to rotate, and the rotation of the paddle 13 provides power for the movement of the hull structure 11.
[0030] The upper end of the movable column 25 is slidably connected to the two sides of the movable rod 22, and the movable column 25 is slidably connected to the inner side of the fixed column 23.
[0031] When the movable rod 22 rotates, the movable rod 22 can drive the movable column 25 to move up and down.
[0032] The movable rod 22 and the paddle 13 are staggered, and the stop block 27 is an arc structure.
[0033] The movable rod 22 can move between the paddles 13, and the movable rod 22 does not contact the paddles 13.
[0034] Working principle: when the tail shaft 12 drives the paddle 13 to rotate, the tail shaft 12 drives the support rod 21 and the movable rod 22 to rotate synchronously with the paddle 13, one end of the movable rod 22 is blocked by the stop block 27, so that one end of the movable rod 22 moves inward and the other end moves outward, the other end of the movable rod 22 moves outward in the middle of the paddle 13, that is, the movable rod 22 can move the fishing net, avoid the fishing net winding on the paddle 13, and when the movable rod 22 and the stop block 27 are staggered, the movable rod 22 is reset under the extension spring 24, so that the movable rod 22 moves back and forth in the middle of the paddle 13, and the movable rod 22 moves the fishing net.
[0035] Please refer to Figure 4 The embodiment further comprises:
[0036] The cutting assembly comprises a first blade 31, a fixed shaft 32, a torsional spring 33, a blocking rod 34, a limiting block 35 and a second blade 36, the first blade 31 is fixedly connected to the outer surface of the tail shaft 12, the fixed shaft 32 is rotatably connected to the outer side of the upper end of the first blade 31, the torsional spring 33 is fixedly connected to the inner side of the first blade 31, the blocking rod 34 is fixedly connected to the two sides of the fixed shaft 32, the limiting block 35 is fixedly connected to the two sides of the upper end of the first blade 31, and the second blade 36 is fixedly connected to the outer surface of the movable rod 22.
[0037] The first blade 31 and the second blade 36 are used for cutting the fishing net, the fixed shaft 32 is used for supporting the blocking rod 34, the torsional spring 33 is used for resetting the blocking rod 34, the blocking rod 34 is used for blocking the fishing net, and the limiting block 35 is used for limiting the blocking rod 34.
[0038] The first blade 31 is an L-shaped structure, the inner side of the blocking rod 34 is fixedly connected to the outer end of the torsional spring 33, the outer end of the second blade 36 is flush with the outer surface of the movable rod 22, and the direction of the blade edge of the first blade 31 is opposite to the direction of the blade block of the second blade 36.
[0039] When the torsion spring 33 is in the state of no force, the lower end of the blocking rod 34 is located below the both sides of the tail shaft 12.
[0040] Working principle: when the fishing net moves along the movable rod 22 to the ship body structure 11 under the action of the movable rod 22, the fishing net pushes the blocking rod 34, so that the blocking rod 34 moves outward and does not block the fishing net until the fishing net enters the upper end of the second blade 36. At this time, the angle between the second blade 36 and the first blade 31 gradually decreases, so that the second blade 36 and the first blade 31 cut the fishing net, and at the same time, the blocking rod 34 is reset under the elastic force of the torsion spring 33, so that the inner side of the blocking rod 34 blocks the fishing net, that is, the reverse movement of the fishing net can be avoided.
Claims
1. A structure for preventing fishing nets from entangling with a propeller of a ship, characterized by comprising: Include: Propeller assembly, the propeller assembly includes hull structure (11) and tail shaft (12), the tail shaft (12) is rotatably connected to the tail of hull structure (11) (11); Movable assembly, the movable assembly includes support rod (21), movable rod (22), fixed column (23), telescopic spring (24), movable column (25), fixed ring (26) and stop block (27);The support rod (21) is fixedly connected to the outer surface of the tail shaft (12) central position, the movable rod (22) is rotatably connected to the inner position of the upper end of the support rod (21), the fixed column (23) is fixedly connected to the outer end of the outer surface of the tail shaft (12), the telescopic spring (24) is fixedly connected to the inner position of the fixed column (23), the movable column (25) is fixedly connected to the top end position of the telescopic spring (24), the fixed ring (26) is fixedly connected to the outer side position of the hull structure (11), the stop block (27) is fixedly connected to the inner side position of the fixed ring (26), one end of the movable rod (22) extends into the fixed ring (26) and is located between two adjacent stop blocks (27).
2. A structure for preventing fishing nets from winding around a propeller of a ship according to claim 1, wherein The propeller assembly further comprises a blade (13), which is fixedly connected to the outer end of the outer surface of the tail shaft (12).
3. A structure for preventing fishing nets from winding around a propeller of a ship according to claim 1, wherein The upper end of the movable column (25) is slidably connected to the outer side position of the movable rod (22), and the movable column (25) is slidably connected to the inner position of the fixed column (23).
4. A structure for preventing fishing nets from winding around a propeller of a ship according to claim 1, wherein The movable rod (22) and the blade (13) are staggered, and the stop block (27) is an arc structure.
5. A structure for preventing fishing nets from winding around a propeller of a ship according to claim 1, wherein It also includes a cutting assembly, the cutting assembly includes first blade (31), fixed shaft (32), torsional spring (33), stop rod (34), limit block (35) and second blade (36), the first blade (31) is fixedly connected to the outer surface of the tail shaft (12) central position, the fixed shaft (32) is rotatably connected to the outer side position of the upper end of the first blade (31), the torsional spring (33) is fixedly connected to the inner position of the first blade (31), the stop rod (34) is fixedly connected to the both sides of the fixed shaft (32), the limit block (35) is fixedly connected to the both sides of the upper end of the first blade (31), and the second blade (36) is fixedly connected to the outer surface of the movable rod (22) central position.
6. A structure for preventing fishing nets from winding around a propeller of a ship according to claim 5, wherein The first blade (31) is an L-shaped structure, the inner side of the stop rod (34) is fixedly connected to the outer end of the torsional spring (33), the outer end of the second blade (36) is flush with the outer surface of the movable rod (22), and the blade edge of the first blade (31) and the blade block of the second blade (36) are opposite.