Marine professional survey ship hull thruster protection mechanism
By setting up a filter baffle, filter side plate and retractable connecting rod in the pusher protection mechanism of the marine survey ship, the problem of floating objects and marine organisms entering the diversion cover is solved, effectively protecting and maintaining the paddles, and facilitating the safe navigation of the ship.
Patent Information
- Application Number
- CN202421665071.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-07-15
AI Technical Summary
During the voyage of the marine survey ship, floating objects and marine life may be brought into the diversion cover, causing the blades to be entangled, affecting the power and safety of the ship.
A hull pusher protection mechanism for specialized marine survey ships is designed, including filter baffles, filter side panels and retractable connecting rods, through which floats are isolated from fish, preventing them from entering the shroud, and providing sufficient space for the maintenance and cleaning of the drive shaft.
Effectively isolate floating objects and fish, prevent water flow from blocking, protect the blades, ensure smooth rotation, simplify the maintenance and cleaning process, and improve the safety of ship use.
Smart Images

Figure CN222728230U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of hull thruster protection equipment, in particular to a hull thruster protection mechanism for a professional marine survey ship. Background Art
[0002] Ships rely on propellers during navigation. Usually, a fairing is installed on the outside of the propellers to use the reaction force of the water flow to move the ship. However, due to the influence of the marine environment, there may be floating objects and even marine animals in the sea. As the water flows, they may be brought into the fairing, which may pose a threat to marine life. In severe cases, the propeller blades may become entangled, the ship may lose power, and the safe use of the ship may be affected. Utility Model Content
[0003] The main purpose of the utility model is to provide a hull thruster protection mechanism for a professional marine survey ship, which can effectively solve the problems in the background technology.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a hull thruster protection mechanism for a marine professional survey ship, including a hull, a transmission shaft is arranged on the surface of the hull, a paddle is arranged at the end of the transmission shaft, a fairing is arranged outside the paddle, the fairing is installed on the surface of the hull, a filter baffle is arranged at the front end of the paddle, filter side plates are installed on both sides of the filter baffle, a connecting plate is installed below the filter baffle and the filter side plates, the lower surface of the filter baffle is lower than the bottom position of the fairing, and the filter baffle and the connecting plate are fixed to the bottom of the hull by a retractable connecting rod.
[0005] The filter side plate is fixedly connected to the connecting plate, and a sealing filter plate is installed on the top of the filter side plate and the filter baffle through a first spring hinge, and the sealing filter plate is against the surface of the hull.
[0006] The filter baffle includes two auxiliary filter plates, and the two auxiliary filter plates are respectively installed on the surface of the connecting rod and the connecting plate through the second spring hinge. Semicircular through grooves are opened on the surfaces of the two auxiliary filter plates, and the transmission shaft passes through the interior of the through grooves. The two auxiliary filter plates are installed with a universal connecting component.
[0007] A semicircular collar with a U-shaped cross section is installed inside the through groove, and the transmission shaft passes through the inside of the collar.
[0008] The connecting assembly comprises a threaded rod, a threaded groove is provided inside the small hole of the auxiliary filter plate, and the threaded rod passes through the threaded grooves of the two auxiliary filter plates.
[0009] The threaded rods and threaded grooves are provided in two groups, which are symmetrically arranged on the surface of the auxiliary filter plate.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] 1. In the utility model, by setting the filter baffle and the filter side plate, the filter baffle and the filter side plate can isolate floating objects or fish. Compared with the traditional filtration that only relies on the filter baffle, the filtration area is larger, so it will not easily cause water flow blockage, which can not only protect the blades, but also ensure the smooth rotation of the blades.
[0012] 2. In the utility model, by arranging the threaded rod, the threaded groove and the threaded groove, the threaded rod is turned out from the inside of another threaded groove, and the auxiliary filter plate is opened, so that there is enough space for convenient inspection and replacement of the transmission shaft. At the same time, when there are debris such as wooden sticks stuck inside the filter side plate, it is also convenient to clean it from the inside, which is convenient for the next use. The structure is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the overall structure of the thruster protection mechanism of the hull of a marine professional survey ship of the utility model;
[0014] Figure 2 This is a schematic diagram of the partial structure of the sealing filter plate position of the thruster protection mechanism of the hull of a marine professional survey ship of the utility model;
[0015] Figure 3 This is a partial structural diagram of the first spring hinge position of the hull thruster protection mechanism of the marine professional survey ship of the utility model;
[0016] Figure 4 The utility model is a schematic diagram of the thread groove position of the thruster protection mechanism of the hull of a marine professional survey ship.
[0017] In the figure: 1, transmission shaft; 2, filter baffle; 3, filter side plate; 4, connecting plate; 5, connecting rod; 6, first spring hinge; 7, sealing filter plate; 8, auxiliary filter plate; 9, second spring hinge; 10, through groove; 11, collar; 12, threaded rod; 13, threaded groove. DETAILED DESCRIPTION
[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0019] like Figure 1-4As shown, the hull thruster protection mechanism of a marine professional survey ship includes a hull, a transmission shaft 1 is arranged on the surface of the hull, a power source is arranged inside the hull to rotate the transmission shaft 1, a paddle is arranged at the end of the transmission shaft 1, and the paddle rotates to generate a driving force, a fairing is arranged outside the paddle, the fairing is installed on the surface of the hull, a filter baffle 2 is arranged at the front end of the paddle, filter side panels 3 are installed on both sides of the filter baffle 2, a connecting plate 4 is installed below the filter baffle 2 and the filter side panels 3, the connecting plate 4 is inclined and directly installed on the surface of the hull, the lower surface of the filter baffle 2 is lower than the bottom position of the fairing, the filter baffle 2 and the connecting plate 4 are fixed to the bottom of the hull by a retractable connecting rod 5, and the positions of the filter baffle 2 and the filter side panels 3 are changed to adapt to the paddles in different positions.
[0020] When the paddle blades rotate, the water flow at the front end thereof will enter the interior of the guide cover. At this time, the filter baffle 2 and the filter side plate 3 can isolate floating objects or fish and protect the paddle blades. Compared with the traditional filtration relying on the filter baffle 2, the filtration area is larger, so it will not easily cause water flow blockage. At the same time, the connecting plate 4 at the bottom can also be set as a filter plate to ensure the smooth rotation of the paddle blades.
[0021] The filter side plate 3 is fixedly connected to the connecting plate 4, and a sealing filter plate 7 is installed on the top of the filter side plate 3 and the filter baffle 2 through a first spring hinge 6. The initial state of the first spring hinge 6 is that the wet sealing filter plate 7 is in a vertical state, and the sealing filter plate 7 is against the surface of the hull. At this time, the first spring hinge 6 is in a compressed state. When the connecting rod 5 moves, the sealing filter plate 7 is against the surface of the hull due to the rebound force of the first spring hinge 6, thereby ensuring the overall sealing.
[0022] The filter baffle 2 includes two auxiliary filter plates 8, and the two auxiliary filter plates 8 are respectively installed on the surface of the connecting rod 5 and the connecting plate 4 through the second spring hinge 9. The initial state of the second spring hinge 9 is to make the auxiliary filter plates 8 in a horizontal state. Semicircular through grooves 10 are opened on the surfaces of the two auxiliary filter plates 8. The transmission shaft 1 passes through the interior of the through grooves 10 to provide support force for the transmission shaft 1 to prevent it from vibrating during rotation. The two auxiliary filter plates 8 are installed with a universal connecting component.
[0023] The filter baffle 2 that can be opened and closed has enough space to facilitate the inspection and replacement of the transmission shaft 1. At the same time, when debris such as a wooden stick is stuck inside the filter side plate 3, it is also convenient to clean it from the inside to facilitate the next use.
[0024] A semicircular collar 11 with a U-shaped cross section is installed inside the through groove 10 . The collar 11 has a certain flexibility. The transmission shaft 1 passes through the inside of the collar 11 . Different collars 11 can be replaced for transmission shafts 1 of different sizes.
[0025] The connecting assembly includes a threaded rod 12, and a threaded groove 13 is opened inside the small hole of the auxiliary filter plate 8. The threaded rod 12 passes through the threaded grooves 13 of the two auxiliary filter plates 8. The top of the threaded rod 12 is flush with the height of the threaded groove 13, and the bottom of the threaded rod 12 is against the inner wall of the small hole of the auxiliary filter plate 8. The number of the threaded rod 12 and the threaded groove 13 is provided in two groups, which are symmetrically arranged on the surface of the auxiliary filter plate 8. When installing the two auxiliary filter plates 8, it is only necessary to rotate the threaded rod 12 into the inside of another threaded groove 13. When disassembling, it is only necessary to rotate the threaded rod 12 out from the inside of the other threaded groove 13.
[0026] It should be noted that the utility model is a hull thruster protection mechanism for a professional marine survey ship. When in use, the transmission shaft 1 is passed between the two auxiliary filter plates 8, and then the two auxiliary filter plates 8 are rotated so that the threaded grooves 13 are aligned, and the threaded rod 12 is rotated into the inside of another threaded groove 13, and the connecting rod 5 is fixed under the hull. When the paddle blades rotate, the water flow at the front end thereof will enter the inside of the fairing. At this time, the filter baffle 2 and the filter side plate 3 can isolate floating objects or fish and protect the paddle blades. Due to the large filtering area, it will not easily cause water flow blockage. At the same time, the connecting plate 4 at the bottom can also be set as a filter plate, thereby ensuring the smoothness of the rotation of the paddle blades. When the connecting rod 5 moves, the sealing filter plate 7 is against the surface of the hull due to the rebound force of the first spring hinge 6, thereby ensuring the overall sealing.
[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A hull propeller protection mechanism for a marine professional survey ship, comprising a hull, a transmission shaft (1) is arranged on the surface of the hull, a propeller blade is arranged at the end of the transmission shaft (1), a guide cover is arranged outside the propeller blade, and the guide cover is installed on the surface of the hull, characterized in that: A filtering baffle (2) is provided at the front end of the paddle, filtering side plates (3) are installed on both sides of the filtering baffle (2), a connecting plate (4) is installed below the filtering baffle (2) and the filtering side plates (3), the lower surface of the filtering baffle (2) is lower than the bottom position of the fairing, and the filtering baffle (2) and the connecting plate (4) are fixed below the hull via a retractable connecting rod (5).
2. The hull thruster protection mechanism for a marine professional survey vessel according to claim 1 is characterized in that: The filter side plate (3) is fixedly connected to the connecting plate (4); a sealing filter plate (7) is installed on the top of the filter side plate (3) and the filter baffle (2) via a first spring hinge (6); and the sealing filter plate (7) is against the surface of the hull.
3. The hull thruster protection mechanism for a marine professional survey vessel according to claim 1 is characterized in that: The filter baffle (2) comprises two auxiliary filter plates (8), and the two auxiliary filter plates (8) are respectively mounted on the surface of the connecting rod (5) and the connecting plate (4) through a second spring hinge (9). The surfaces of the two auxiliary filter plates (8) are provided with semicircular through grooves (10), and the transmission shaft (1) passes through the interior of the through grooves (10). The two auxiliary filter plates (8) are mounted by a universal connecting assembly.
4. The hull thruster protection mechanism for a marine professional survey vessel according to claim 3 is characterized in that: A semicircular collar (11) with a U-shaped cross section is installed inside the through groove (10), and the transmission shaft (1) passes through the inside of the collar (11).
5. The hull thruster protection mechanism for a marine professional survey vessel according to claim 3 is characterized in that: The connecting assembly comprises a threaded rod (12), a threaded groove (13) is provided inside the small hole of the auxiliary filter plate (8), and the threaded rod (12) passes through the threaded grooves (13) of the two auxiliary filter plates (8).
6. The hull thruster protection mechanism for a marine professional survey vessel according to claim 5 is characterized in that: The threaded rods (12) and threaded grooves (13) are provided in two groups, which are symmetrically arranged on the surface of the auxiliary filter plate (8).