A kind of cap fin and propeller integrated fluid fairing structure
By integrating the fin and propeller into a fluid guide structure and a cutting mechanism, the problem of aquatic plants entangled in the propeller is solved, thereby improving propulsion efficiency and mechanical stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENJIANG TONGZHOU PROPELLER
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-03
AI Technical Summary
The existing fluid deflector structure fails to effectively prevent aquatic plants from entangled in the propeller, affecting propulsion efficiency and mechanical stability.
A fluid guide structure integrating the cap fin and propeller was designed, with an integrated cutting mechanism including a support column, side plate, triangular blade, inner rod, sleeve plate and trapezoidal blade. The rotating cutting mechanism cuts aquatic plants entering the hood to prevent entanglement.
It effectively prevents aquatic plants from tangling with the propeller, improves propulsion efficiency and mechanical stability, and reduces energy loss.
Smart Images

Figure CN224448129U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of marine technology, specifically a fluid guide structure that integrates the cap fin and the propeller. Background Technology
[0002] The integrated fin and propeller fluid deflector structure is a fluid power device that integrates the fin and propeller into one unit through mechanical or structural design and works in conjunction with the deflector. This structure pre-guides the incoming flow through the fin, and combined with the deflector's constraint and rectification of the fluid, optimizes the propeller's working flow field and improves propulsion efficiency. Its integrated design can reduce interference between components and reduce energy loss, and has important application value in the fields of ships and underwater vehicles.
[0003] The abundant aquatic plants in the ocean can easily entangle propellers, reducing propulsion efficiency and even causing mechanical failures. However, existing fluid guide structures mostly focus on optimizing fluid dynamics performance and do not have effective cutting or protective measures to address the problem of aquatic plant entanglement. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, this utility model provides a fluid guide structure that integrates the cap fin and the propeller, which effectively solves the problem that aquatic plants in the sea are easily entangled on the propeller and affect its operation.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a fluid guide structure integrating a cap fin and a propeller, comprising a cover body, an installation shaft provided inside the cover body, a propeller body fixedly installed on the installation shaft, a cap fin body fixedly installed on the propeller body, and the cap fin body and the propeller body being integrally formed, and a cutting mechanism provided on the cap fin body;
[0006] The cutting mechanism includes a support column fixed to the side of the cap fin body away from the propeller body. A side plate is fixedly connected to the side of the support column away from the cap fin body. Two triangular blades are symmetrically fixedly connected to the outer side of the side plate. An inner rod is provided on the side of the side plate away from the support column. A sleeve plate is fixedly sleeved on the outer side of the inner rod. Two triangular blades are symmetrically fixedly connected to the outer side of the sleeve plate.
[0007] Preferably, the outer side of the cover is provided with a side ring, and multiple connecting posts are fixedly connected to the side ring and the cover at equal angles, with the inner rod fixed to the inner side of the side ring.
[0008] Preferably, two side rods are symmetrically fixedly connected to the side of the side plate away from the inner rod, and a sleeve plate three is fixedly sleeved on the outer side of the side rods, and a trapezoidal blade two is fixedly connected to the outer side of the sleeve plate three.
[0009] Preferably, a sleeve plate is fixedly sleeved on the outer side of the connecting column, and a trapezoidal blade is fixedly connected to the outer side of the sleeve plate.
[0010] Preferably, the end of the side rod away from the side plate extends into the cover body and is fixedly connected to a side block. A limiting roller is provided on the outer side of the side block, and the limiting roller abuts against the inner wall of the cover body.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. Through the cooperation between the support column, side plate, triangular blade one, side ring, inner rod, sleeve plate two and triangular blade two, when the paddle body and cap fin body rotate, it is convenient to cut aquatic plants that enter the hood from the front. Through the cooperation between the side rod, sleeve plate three, trapezoidal blade two, connecting column, sleeve plate one and trapezoidal blade one, it is possible to cut aquatic plants that enter the hood from the side, thereby preventing aquatic plants from getting tangled on the paddle body and affecting its operation.
[0013] 2. The side plate can be limited by the cooperation between the side rod and the side block, as well as the limiting roller and the cover, thereby ensuring the stability of the side plate during rotation. Attached Figure Description
[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0015] In the attached diagram:
[0016] Figure 1 This is a schematic diagram of the fluid guide structure of the present invention, which integrates the cap fin and the propeller.
[0017] Figure 2 This is a schematic cross-sectional view of the cover structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the cutting mechanism structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the side ring structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the sleeve plate of this utility model.
[0021] In the diagram: 1. Cover body; 2. Cutting mechanism; 201. Support column; 202. Sleeve plate one; 203. Side ring; 204. Side plate; 205. Sleeve plate two; 206. Triangular blade one; 207. Inner rod; 208. Triangular blade two; 209. Trapezoidal blade one; 2010. Limiting roller; 2011. Side block; 2012. Trapezoidal blade two; 2013. Sleeve plate three; 2014. Side rod; 2015. Connecting column; 3. Cap fin body; 4. Mounting shaft; 5. Paddle body. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] Example 1, by Figure 1-2 The present invention relates to a fluid guide structure integrating a cap fin and a propeller, comprising a cover body 1, an installation shaft 4 inside the cover body 1, a propeller 5 fixedly installed on the installation shaft 4, a cap fin body 3 fixedly installed on the propeller 5, and the cap fin body 3 and the propeller 5 are integrally formed, and a cutting mechanism 2 is provided on the cap fin body 3.
[0024] Specifically, by Figure 3-5 The cutting mechanism 2 includes a support column 201 fixed to the side of the cap fin body 3 away from the propeller body 5. A side plate 204 is fixedly connected to the side of the support column 201 away from the cap fin body 3. Two triangular blades 206 are symmetrically fixedly connected to the outer side of the side plate 204. An inner rod 207 is provided on the side of the side plate 204 away from the support column 201. A sleeve plate 205 is fixedly sleeved on the outer side of the inner rod 207. Two triangular blades 208 are symmetrically fixedly connected to the outer side of the sleeve plate 205. A side ring 203 is provided on the outer side of the cover body 1. Multiple connecting posts 2015 are fixedly connected at equal angles between the side ring 203 and the cover 1. The inner rod 207 is fixed to the inner side of the side ring 203. Two side rods 2014 are symmetrically fixedly connected to the side plate 204 away from the inner rod 207. A sleeve plate 3 2013 is fixedly sleeved on the outer side of the side rod 2014. A trapezoidal blade 2012 is fixedly connected to the outer side of the sleeve plate 3 2013. A sleeve plate 1 202 is fixedly sleeved on the outer side of the connecting post 2015. A trapezoidal blade 209 is fixedly connected to the outer side of the sleeve plate 1 202.
[0025] In operation, when the paddle body 5 and the cap fin body 3 rotate, the support column 201 rotates, which in turn drives the side plate 204 to rotate. At the same time, the first triangular blade 206 rotates and cooperates with the second triangular blade 208 to cut aquatic plants that enter the cover 1 from the front. When the side plate 204 rotates, it drives the side rod 2014 to rotate, and then drives the second trapezoidal blade 2012 to rotate through the third sleeve plate 2013. Through the cooperation of the second trapezoidal blade 2012 and the first trapezoidal blade 209, the aquatic plants that enter the cover 1 from the side are cut. Finally, the aquatic plants are prevented from getting tangled on the paddle body 5 and affecting its operation.
[0026] Specifically, by Figure 5As shown, the end of the side rod 2014 away from the side plate 204 extends into the cover 1 and is fixedly connected to the side block 2011. The side block 2011 is provided with a limiting roller 2010 on the outside, and the limiting roller 2010 abuts against the inner wall of the cover 1.
[0027] In use, when the side plate 204 rotates, it drives the two side rods 2014 to rotate. The two side blocks 2011 drive the two limiting rollers 2010 to roll on the inner wall of the cover 1, thereby limiting the side plate 204 and preventing instability when the side plate 204 rotates.
Claims
1. A fluid ducting cover structure of a cap fin and propeller integration, comprising a cover body (1), characterized in that: The cover (1) is provided with an installation shaft (4) inside, a propeller (5) is fixedly installed on the installation shaft (4), a cap fin body (3) is fixedly installed on the propeller (5), and the cap fin body (3) and the propeller (5) are integrally formed, and a cutting mechanism (2) is provided on the cap fin body (3); The cutting mechanism (2) includes a support column (201) fixed to the side of the cap fin body (3) away from the propeller (5). A side plate (204) is fixedly connected to the side of the support column (201) away from the cap fin body (3). Two triangular blades (206) are symmetrically fixedly connected to the outer side of the side plate (204). An inner rod (207) is provided on the side of the side plate (204) away from the support column (201). A sleeve plate (205) is fixedly sleeved on the outer side of the inner rod (207). Two triangular blades (208) are symmetrically fixedly connected to the outer side of the sleeve plate (205).
2. The cap fin and propeller integrated fluid-ducting cover structure according to claim 1, characterized in that: The outer side of the cover (1) is provided with a side ring (203), and multiple connecting posts (2015) are fixedly connected to the cover (1) at equal angles. The inner rod (207) is fixed to the inner side of the side ring (203).
3. The cap fin and propeller integrated fluid-ducting cover structure according to claim 1, characterized in that: Two side rods (2014) are symmetrically fixedly connected to the side of the side plate (204) away from the inner rod (207). A sleeve plate three (2013) is fixedly sleeved on the outside of the side rod (2014), and a trapezoidal blade two (2012) is fixedly connected to the outside of the sleeve plate three (2013).
4. The cap fin and propeller integrated fluid-ducting cover structure according to claim 2, characterized in that: A sleeve plate (202) is fixedly sleeved on the outside of the connecting column (2015), and a trapezoidal blade (209) is fixedly connected to the outside of the sleeve plate (202).
5. The cap fin and propeller integrated fluid-ducting cover structure according to claim 3, characterized in that: The side rod (2014) extends into the cover (1) at one end away from the side plate (204) and is fixedly connected to a side block (2011). A limiting roller (2010) is provided on the outer side of the side block (2011), and the limiting roller (2010) abuts against the inner wall of the cover (1).