CN115258113A - Automatic folding flow guide pipe capable of preventing marine fishes from being accidentally injured - Google Patents
Automatic folding flow guide pipe capable of preventing marine fishes from being accidentally injured Download PDFInfo
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- CN115258113A CN115258113A CN202211004735.2A CN202211004735A CN115258113A CN 115258113 A CN115258113 A CN 115258113A CN 202211004735 A CN202211004735 A CN 202211004735A CN 115258113 A CN115258113 A CN 115258113A
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- arc
- guide pipe
- shaped baffle
- shaped
- hinged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose
- B63H5/15—Nozzles, e.g. Kort-type
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Catching Or Destruction (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses an automatic folding guide pipe for preventing marine fishes from being accidentally injured, which comprises a foldable guide pipe and a visual detector, wherein the foldable guide pipe comprises a guide pipe and retractable blades, the guide pipe comprises two first arc-shaped baffles with the same structure and two second arc-shaped baffles with the same structure, the two first arc-shaped baffles are hinged with a ship body and are also connected with the ship body in a foldable manner, and the second arc-shaped baffles are hinged and connected with the corresponding first arc-shaped baffles in a foldable manner; the retractable blades are arranged along the circumference of the inner wall of the flow guide pipe in an array manner and are hinged with the inner wall of the flow guide pipe; the automatically foldable flow guide pipe is sleeved on the propeller; when the visual detector detects that fish or other foreign matters are about to be sucked into the propeller, the retractable blades are controlled to be opened, and when the sea surface is normal or the guide pipe is folded, the retractable blades are controlled to be retracted and attached to the inner wall of the guide pipe. The guide pipe can be automatically folded to the bottom of the ship body, and can prevent fish or other foreign matters from being sucked into the propeller.
Description
Technical Field
The invention relates to marine equipment, in particular to an automatically-foldable flow guide pipe capable of preventing marine fishes from being accidentally injured.
Background
With the development of shipbuilding technology, human footprints are spread over the ocean. In existing ships, they are powered primarily by propellers. Along with the increase of the tonnage of the ship, the tonnage of the propeller is larger and larger, and the tonnage of the propeller reaches about 10 meters in the existing ship propeller. A vortex is formed in front of the propeller during the travel of the ship to suck the fish into the propeller. The small fish can be torn into fragments by the powerful propeller, and meanwhile, the bloody smell of the torn small fish can attract the carnivorous fishes such as sharks to prey on the small fish, so that the injury and death of large fishes are caused. Meanwhile, the sound of sonar emitted by a large ship in the driving process is very similar to the sound of a whale calling partner, so that the whale is attracted to trail behind the ship. Once scratched by the propeller, the wound is amazing, and if the wound is too deep, the wound is difficult to recover, so that the wound is buried in the sea due to excessive blood loss or infection.
With more and more reports on propeller-injured fish, people are slowly becoming aware of the severity of the problem. Various methods for preventing fish from being injured by propellers have also been proposed in recent years. The sonar is used for driving fish shoal, but the sonar is more harmful to the sea under the practical evidence. The positioning and communication of many marine mammal species are performed by sonar. Sonar caused by humans turns these fish into a dizzy state from the run to the beach. Furthermore, the invention of preventing fish from being accidentally injured by mechanical means is also provided, for example, the Chinese patent application CN202110306618.0 proposes a propeller for a boat, which can prevent large fish and mammals in water from being accidentally injured. A foldable cover is arranged in front of the propeller to prevent fish from being sucked into the propeller, but the front cover not only causes power loss but also cannot prevent the outer side of the propeller from scratching large fishes. In a further development, the honeycomb duct is found to not only increase the thrust of the propeller and prevent the big fish from being scratched by the propeller, but also cannot prevent the small fish from being wound into the propeller, and the honeycomb duct can also be an obstacle in some occasions. Such as: the turning radius of the ship becomes large when turning, the draft tube may bottom out when parking at a port with a shallow water level, and the draft tube is also an obstacle when cleaning or repairing the propeller.
Disclosure of Invention
The invention aims to: the invention aims to provide an automatically-foldable guide pipe for preventing marine fishes from being accidentally injured, which can prevent fishes or other foreign matters from being sucked into a propeller and can automatically fold the guide pipe to the bottom of a ship when needed.
The technical scheme is as follows: the invention relates to an automatic folding guide pipe for preventing accidental injury of marine fishes, which comprises a foldable guide pipe and a visual detector, wherein the foldable guide pipe comprises a guide pipe, a retractable blade, a first folding part and a second folding part, the guide pipe comprises an upper half arc-shaped baffle and a lower half arc-shaped baffle, the upper half arc-shaped baffle comprises two first arc-shaped baffles with the same structure, the connecting ends of the two first arc-shaped baffles are hinged with a ship body through first hinge parts, and the two first arc-shaped baffles are respectively connected with the ship body through the first folding parts in a foldable manner; the lower half arc-shaped baffle comprises two second arc-shaped baffles with the same structure, the two second arc-shaped baffles are hinged with the two first arc-shaped baffles through second hinge parts respectively, and the two second arc-shaped baffles are connected with the two first arc-shaped baffles in a foldable manner through second folding parts respectively; the retractable blades are arranged along the circumference of the inner wall of the flow guide pipe in an array manner and are hinged with the inner wall of the flow guide pipe; the automatically foldable flow guide pipe is sleeved on the propeller and is not in contact with the propeller; the visual detector is used for monitoring sea surface information, when monitoring that fishes or other foreign matters are about to be sucked into the propeller, the retractable blades are controlled to be opened, the fishes or other foreign matters are prevented from being sucked into the propeller, and when the sea surface is normal or the draft tube is folded, the retractable blades are controlled to be retracted and attached to the inner wall of the draft tube; the draft tube is folded and attached to the bottom of the ship body.
Preferably, the bottom of the ship body is provided with a fourth connecting part, the two ends of each first arc-shaped baffle are respectively provided with a first connecting part and a second connecting part, one ends of the two first arc-shaped baffles provided with the first connecting parts are butted, and the first connecting parts of the two first arc-shaped baffles and the fourth connecting part at the bottom of the ship body form a first hinge part; and a third connecting part is arranged at one end of the second arc-shaped baffle plate, and the third connecting part of the second arc-shaped baffle plate and the second connecting part of the first arc-shaped baffle plate form a second hinge part.
Preferably, first cowl and second cowl all include arc flaring portion and arc circle oral area, and first connecting portion, second connecting portion and third connecting portion all set up at arc circle oral area.
Preferably, the retractable blades are arranged in a circumferential array along the connection of the arc-shaped flared part and the arc-shaped round mouth part.
Preferably, the first folding portion comprises a first hydraulic rod, a first supporting portion and a second supporting portion, the first supporting portion is arranged at the bottom of the ship body, the second supporting portion is arranged on the first arc-shaped baffle plate, and two ends of the first hydraulic rod are hinged to the first supporting portion and the second supporting portion respectively.
Preferably, the second folding portion comprises a second hydraulic rod, a third supporting portion and a fourth supporting portion, the third supporting portion is arranged on the first arc-shaped baffle, the fourth supporting portion is arranged on the second arc-shaped baffle, and two ends of the second hydraulic rod are hinged to the third supporting portion and the fourth supporting portion respectively.
Preferably, the retractable blades comprise blades, connecting rods, hydraulic push rods and hydraulic cylinders, one ends of the blades are hinged to the inner walls of the first arc-shaped baffle and the second arc-shaped baffle, one ends of the connecting rods are hinged to the blades, the other ends of the connecting rods are hinged to the hydraulic push rods, the hydraulic push rods move in the hydraulic cylinders in a reciprocating mode, and the blades are driven to rotate around the hinged positions of the blades and the inner walls of the first arc-shaped baffle or the second arc-shaped baffle through the connecting rods.
Preferably, the inner walls of the first arc-shaped baffle and the second arc-shaped baffle are circumferentially provided with blade connecting shafts, and the blade connecting shafts are circumferentially arrayed with hydraulic mounting structures; the upper surface and the lower surface of one end of each blade are respectively provided with a third hinged part and a fourth hinged part, each blade is hinged with a blade connecting shaft and a connecting rod through the third hinged part and the fourth hinged part, and the hydraulic cylinder is installed on the hydraulic installation structure.
The ship comprises the automatically foldable flow guide pipe.
The invention discloses a control method of an automatic folding guide pipe for preventing accidental injury of marine fishes, which comprises the following steps:
folding and opening of folded cascade honeycomb duct:
under normal conditions, the foldable draft tube is in a fully opened state;
when the folding device needs to be folded, the second folding part works to drive the second arc-shaped baffle to rotate around the second hinge part and to be opened outwards until the second arc-shaped baffle is completely folded and folded; further, the first folding part works to drive the first arc-shaped baffle plate to rotate around the first hinge part and outwards open until the first arc-shaped baffle plate and the second arc-shaped baffle plate are completely folded, folded and attached to the bottom of the ship body;
when the first arc-shaped baffle plate needs to be opened, the first folding part works to drive the first arc-shaped baffle plate to reversely rotate around the first hinge part and retract inwards until the first arc-shaped baffle plate is completely retracted; further, the second folding part works to drive the second arc-shaped baffle plates to reversely rotate around the second hinge part and retract inwards until the second arc-shaped baffle plates are completely opened, and the two first arc-shaped baffle plates and the two second arc-shaped baffle plates form a closed structure;
expansion and retraction of retractable vanes:
when the visual detector detects that fishes or other foreign matters are about to be sucked into the propeller, the hydraulic cylinder pushes the hydraulic push rod to move backwards, the hydraulic push rod drives the connecting rod to move, and the connecting rod drives the blades to rotate around the blade connecting shaft, so that the blades are opened to form an inward-folded horn shape, and the fishes or other foreign matters are prevented from being sucked into the propeller;
when the visual detector detects that the sea surface is normal or the foldable flow guide pipe needs to be folded, the hydraulic cylinder pushes the hydraulic push rod to move forwards, the hydraulic push rod drives the connecting rod to move, and the connecting rod drives the blades to rotate reversely around the blade connecting shaft, so that the blades are folded and tightly attached to the inner wall of the flow guide pipe.
Has the advantages that: compared with the prior art, the invention has the remarkable technical effects that: (1) By adopting the foldable guide pipe, when the guide pipe can form obstruction in the occasions such as ship turning, port anchoring, propeller cleaning and maintenance and the like, the guide pipe can be automatically folded to the bottom of the ship. (2) The invention adopts the retractable blades, when fish or other foreign matters are detected to be sucked into the propeller, the retractable blades can be opened, so that the propeller is prevented from accidentally injuring the fish, and other hard foreign matters can be effectively prevented from being sucked into the propeller and broken by the propeller. (3) The invention adopts a visual detector, can automatically monitor fish and other foreign matters and control the opening and closing of the foldable blades.
Drawings
FIG. 1 is an isometric view of the rear of the hair of the present invention;
FIG. 2 is an isometric view of the front of the invention;
fig. 3 is an isometric view of the opening of the vanes of the foldable draft tube of the present invention;
fig. 4 is an isometric view of the closure of the foldable nozzle vanes of the present invention;
FIG. 5 is an isometric view of the exterior of the upper half-dome of the draft tube of the present invention;
FIG. 6 is an isometric view of the interior of the upper half-dome of the draft tube of the present invention;
FIG. 7 is an isometric view of the interior of the lower semi-arcuate baffle of the draft tube of the present invention;
FIG. 8 is an isometric view of a blade of the present invention;
FIG. 9 is a rear view of the present invention;
FIG. 10 is a drawing showing the movement of the lower baffle of the draft tube of the present invention in the retracted position;
FIG. 11 is a rear view of the draft tube of the present invention with the lower cowl retracted;
FIG. 12 is a drawing showing the movement of the upper curved baffle of the draft tube according to the present invention;
FIG. 13 is a rear view of the completed collapse of the upper baffle of the draft tube of the present invention;
FIG. 14 is a cross-sectional view of the inventive vane unopened;
FIG. 15 is a graph of the action of the invention with the leaves open;
FIG. 16 is a cross-sectional view of the invention with the vanes open;
FIG. 17 is an isometric view of the invention with the vanes open;
in the figure: the visual detector comprises a foldable flow guide pipe-1, a flow guide pipe-11, an upper half arc-shaped baffle-111, a lower half arc-shaped baffle-112, a retractable blade-12, a blade-121, a connecting rod-122, a hydraulic push rod-123 and a hydraulic cylinder-124, a first hydraulic rod-131, a second hydraulic rod-141, a third hinge-A3, a fourth hinge-A4, a first connecting part-B1, a second connecting part-B2, a third connecting part-B3, a fourth connecting part-B4, a first supporting part-C1, a second supporting part-C2, a third supporting part-C3, a fourth supporting part-C4, a first arc-shaped flaring part-D1, a second arc-shaped flaring part-D2, a first arc-shaped flaring part-E1, a second arc-shaped flaring part-E2, a blade connecting shaft-F, a hydraulic mounting structure-G, a visual detector 2, a propeller-3 and a ship body-4.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive efforts based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
As shown in figures 1 and 2, the automatic folding guide pipe capable of preventing marine fish from being accidentally injured comprises a foldable guide pipe 1 and a visual detector 2, wherein the foldable guide pipe 1 is sleeved on a propeller 3 and is hinged to the tail of a ship body 4, and the visual detector 2 is installed above the front of the propeller at the bottom of the ship body 4 and used for monitoring fish or other foreign matters sucked into the propeller.
As shown in fig. 3 to 9, the draft tube 11 includes an upper semi-arc baffle 111 and a lower semi-arc baffle 112, the upper semi-arc baffle 111 is hinged at the bottom of the hull through a first hinge portion A1, and is connected with the bottom of the hull through a first folding portion 13 so as to control the opening and closing of the first semi-arc baffle 111; the upper half arc-shaped baffle 111 and the lower half arc-shaped baffle 112 are hinged together through a second hinge part A2 and then connected through a second folding part 14 so as to control the opening and closing of the two. As shown in fig. 5 and 9, the upper-half cowl 111 includes two first cowl 1111 having the same structure, the first cowl 1111 includes a first flared portion D1 and a first arcuate mouth portion E1, two ends of the first arcuate mouth portion E1 of the first cowl 1111 are respectively provided with a first connection portion B1 and a second connection portion B2, one ends of the two first cowl 1111, which are provided with the first connection portion B1, are butted, the bottom of the hull is provided with a fourth connection portion B4, the first connection portion B1 of the two first cowl and the fourth connection portion B4 of the bottom of the hull form a first hinge portion A1, and each first connection portion B1 is hinged to the fourth connection portion B4; the outer wall of the first arc-shaped round opening part E1 of the first arc-shaped baffle plate is provided with a second supporting part C2 and a third supporting part C3. As shown in fig. 7, the lower half arc-shaped baffle 112 includes two second arc-shaped baffles 1121 with the same structure, each second arc-shaped baffle 1121 includes a second arc-shaped flared portion D2 and a second arc-shaped round mouth portion E2, one end of the second arc-shaped mouth portion E2 of the second arc-shaped baffle 1121 is provided with a third connecting portion B3, and the third connecting portion B3 of the second arc-shaped baffle 1121 and the second connecting portion B2 of the first arc-shaped baffle 1111 form a second hinge portion A2; the outer wall of the second arc-shaped circular opening part E2 of the second arc-shaped baffle plate is provided with a fourth supporting part C4; the bottom of the ship body is provided with a first supporting part C1; the first connecting portion B1, the second connecting portion B2, the third connecting portion B3, the fourth connecting portion B4, the first supporting portion C1, the second supporting portion C2, the third supporting portion C3, and the fourth supporting portion C4 are all provided with connecting holes.
Both ends of the first hydraulic rod 131 are hinged to the first and second support portions C1 and C2 through connection holes, respectively, and both ends of the second hydraulic rod 141 are hinged to the third and fourth support portions C3 and C4 through connection holes, respectively. The first hydraulic rod 131, the first supporting part C1 and the second supporting part C2 form a first folding part 13, and the two first arc-shaped baffles 1111 are controlled to rotate around the first hinge part A1 by the contraction of the first hydraulic rod 131, so that the first arc-shaped baffles 1111 are opened and closed; the second hydraulic rod 141, the third support part C3 and the fourth support part C4 form a second folding part 14, and the two second arc-shaped baffles 1121 are controlled to rotate around the second hinge part A2 by contraction of the second hydraulic rod 141, so that the second arc-shaped baffles 1121 are opened and closed. When the draft tube 11 is folded, the first arc-shaped baffle 1111 and the second arc-shaped baffle 1211 are opened under the action of the first hydraulic rod 131 and the second hydraulic rod 141, respectively, so that the draft tube 11 is folded to the bottom of the ship body 4; when the draft tube 11 is closed, the first arc-shaped baffle 1111 and the second arc-shaped baffle 1121 are respectively closed under the action of the first hydraulic rod 131 and the second hydraulic rod 141 to form a closed horn-shaped structure which is symmetrical left and right.
As shown in fig. 6, blade connecting shafts F are circumferentially arranged on inner side walls of the first arc-shaped baffle 1111 and the second arc-shaped baffle 1121, and hydraulic mounting structures G are circumferentially arranged on the blade connecting shafts in an array.
As shown in fig. 8 and 14 to 17, the retractable blades 12 are arranged in a circumferential array along the inner wall of the draft tube 11, and include blades 121, a connecting rod 122, a hydraulic push rod 123 and a hydraulic cylinder 124, the upper surface and the lower surface of the connecting end of the blades 121 are respectively provided with a third hinge portion A3 and a fourth hinge portion A4, and the third hinge portion A3 and the fourth hinge portion A4 are provided with connecting holes; the blade 121 is hinged to the blade connecting shaft F through a connecting hole in the fourth hinge part A4, one end of the connecting rod 122 is hinged to the blade 121 through a connecting hole in the third hinge part A3, the other end of the connecting rod 122 is hinged to the hydraulic push rod 123, the hydraulic push rod 123 reciprocates under the hydraulic action in the hydraulic cylinder 124 and drives the connecting rod 122 to reciprocate, and the connecting rod 122 drives the blade 121 to rotate around the blade connecting shaft F; the hydraulic cylinder 124 is installed on the hydraulic installation structure G, the hydraulic cylinder 124, the hydraulic push rod 123, the connecting rod 122 and the blades 121 are in one-to-one correspondence, and the blades 121 can be opened and retracted by pushing and pulling the hydraulic push rod 123. The visual detector is arranged above the front of the ship bottom propeller and used for monitoring that fishes or other foreign matters are sucked into the propeller; when the visual detector detects that fish are about to be sucked into the propeller, the retractable blades are opened to block the fish and prevent the fish from being sucked into the propeller.
The blades 121 are arc-shaped, so that when the blades 121 are folded, the blades can cling to the inner wall of the first arc-shaped baffle 1111 or the second arc-shaped baffle 1121; the connecting ends of the blades 121 are wide, and the free ends of the blades 121 are narrow, so that the blades 121 can form an inward-folded horn shape when being unfolded, and fish or other foreign matters are prevented from being sucked into the propeller 3; and the blades 121 are spread out to form a through hole in the middle to prevent contact with the propeller 3; the blade connecting shaft F is arranged at the joint of the arc flaring part and the arc round opening part, so that the guide pipe cannot be leaked when the blades are unfolded and folded, and fish is prevented from being accidentally injured.
The automatically foldable flow guide pipe 1 is sleeved on the propeller 3 and is not in contact with the propeller 3; when the draft tube 11 is opened, the two first arc-shaped baffles 1111 and the two second arc-shaped baffles 1121 of the draft tube 11 are spliced into a horn shape; when the visual detector 2 detects that fish or other foreign matters are about to be sucked into the propeller 3, the retractable blades 12 are opened inwards around the hinge shaft to form a horn shape, so that the fish or other foreign matters are prevented from approaching the propeller 3; when the honeycomb duct 11 is folded, the retractable blades 12 are outwards retracted around the hinge shaft and attached to the inner wall of the honeycomb duct 11, the second folding portion 14 works to drive the two second arc-shaped baffles 1121 to rotate around the second hinge portion A2 and outwards open, then the first folding portion 13 works to drive the two first arc-shaped baffles 1111 to rotate around the first hinge portion A1 and outwards open until the two first arc-shaped baffles 1111 and the two second arc-shaped baffles 1121 are completely folded and attached to the bottom of the ship body 4.
A control method of an automatic folding guide pipe for preventing accidental injury of marine fishes comprises the following steps:
folding and opening of folded cascade honeycomb duct 1:
under normal conditions, the foldable honeycomb duct 1 is in a fully opened state;
when the diversion pipe is blocked in turning, berthing at an entrance, cleaning and maintaining a propeller and the like of a ship. It is necessary to fold the collapsible draft tube to the bottom of the hull 4. As shown in fig. 9, the draft tube 11 is in a fully opened state, and when the draft tube needs to be folded, as shown in fig. 10, the control system controls the built-in hydraulic system to make the second hydraulic rod 141 start to contract, and the second arc-shaped baffle plate rotates around the second hinge portion under the driving of the second hydraulic rod 141, and is opened outwards until the second arc-shaped baffle plate is fully folded and retracted; shown in fig. 11 is a fully folded stowed view of the second arc stop. Further, the first hydraulic rod 131 begins to retract, and the first arc-shaped baffle plate rotates around the first hinge under the driving of the first hydraulic rod 131 as shown in fig. 12, and is opened outwards until the first arc-shaped baffle plate and the second arc-shaped baffle plate are completely folded, folded and attached to the bottom of the ship body as shown in fig. 13.
When the opening is needed, the first hydraulic rod starts to extend to drive the first arc-shaped baffle to rotate reversely around the first hinge part and retract inwards until the first arc-shaped baffle is completely retracted; further, the second hydraulic rod extends to drive the second arc-shaped baffle to reversely rotate around the second hinge part and retract inwards until the second arc-shaped baffle is completely opened, and the two first arc-shaped baffles and the two second arc-shaped baffles form a closed structure;
unfolding and folding of the retractable blades:
on the premise that the foldable draft tube 1 is completely opened, when the visual detector 2 monitors that fish or other foreign matters are sucked into the propeller, a signal is transmitted to the control system, and the control system enables the hydraulic push rod to make corresponding actions through the built-in hydraulic system, so that the retractable blades 12 are unfolded, as shown in fig. 2 and 3. When the collapsible duct 1 is required to collapse or during normal driving, the collapsible vanes 12 need to be collapsed as shown in fig. 4.
Fig. 14 is a sectional view of the retractable blades 12 when they are retracted, the blades 121 are tightly attached to the inner wall of the draft tube 11, when the blades 121 need to be extended, the control system makes the hydraulic push rod 123 move backwards through the built-in hydraulic system as shown in fig. 15, the hydraulic push rod 123 drives the connecting rod 122 to move, and the connecting rod 122 drives the blades 121 to rotate around the blade connecting shaft, so that the blades are opened, and an inwardly retracted trumpet shape is formed, preventing fish or other foreign matters from being sucked into the propeller. The blades are fully deployed as shown in figures 16 and 17.
When the visual detector detects that the sea surface is normal or the foldable flow guide pipe needs to be folded, the hydraulic cylinder pushes the hydraulic push rod to move forwards, the hydraulic push rod drives the connecting rod to move, and the connecting rod drives the blades to rotate reversely around the blade connecting shaft, so that the blades are folded and tightly attached to the inner wall of the flow guide pipe.
Claims (10)
1. The automatic folding guide pipe capable of preventing marine fishes from being accidentally injured is characterized by comprising a foldable guide pipe (1) and a visual detector (2), wherein the foldable guide pipe (1) comprises a guide pipe (11), retractable blades (12), a first folding part (13) and a second folding part (14), the guide pipe (11) comprises an upper half arc-shaped baffle (111) and a lower half arc-shaped baffle (112), the upper half arc-shaped baffle comprises two first arc-shaped baffles (1111) with the same structure, the connecting ends of the two first arc-shaped baffles (1111) are hinged to a ship body (4) through a first hinge part (A1), and the two first arc-shaped baffles (1111) are respectively connected with the ship body (4) in a foldable mode through the first folding part (13); the lower half arc-shaped baffle (112) comprises two second arc-shaped baffles (1121) with the same structure, the two second arc-shaped baffles (1121) are hinged with the two first arc-shaped baffles (1111) through second hinge parts (A2), and meanwhile, the two second arc-shaped baffles (1121) are respectively connected with the two first arc-shaped baffles (1111) in a foldable mode through second folding parts (14); the retractable blades (12) are arranged along the circumference of the inner wall of the flow guide pipe (11) in an array manner and are hinged with the inner wall of the flow guide pipe (11); the automatically foldable flow guide pipe (1) is sleeved on the propeller (3) and is not contacted with the propeller (3); the visual detector is used for monitoring sea surface information, when monitoring that fishes or other foreign matters are about to be sucked into the propeller, the retractable blades are controlled to be opened, so that the fishes or other foreign matters are prevented from being sucked into the propeller, and when the sea surface is normal or the flow guide pipe is folded, the retractable blades are controlled to be retracted and attached to the inner wall of the flow guide pipe (11); the draft tube is folded and attached to the bottom of the ship body (4).
2. The automatic folding flow guide pipe for preventing accidental injury of marine fishes as claimed in claim 1, wherein a fourth connecting part (B4) is arranged at the bottom of the ship body, a first connecting part (B1) and a second connecting part (B2) are respectively arranged at two ends of the first arc-shaped baffle plates (1111), one ends of the two first arc-shaped baffle plates (1111), which are provided with the first connecting part (B1), are butted, and the first connecting part (B1) of the two first arc-shaped baffle plates (1111) and the fourth connecting part (B4) at the bottom of the ship body form a first hinge part (A1); one end of the second arc-shaped baffle (1121) is provided with a third connecting part (B3), and the third connecting part (B3) of the second arc-shaped baffle (1121) and the second connecting part (B2) of the first arc-shaped baffle (1111) form a second hinge part (A2).
3. The automatic foldable flow guide pipe for preventing accidental injury of marine fishes as claimed in claim 2, wherein the first and second arc-shaped baffles (1111, 1121) each comprise an arc-shaped flared portion and an arc-shaped circular opening portion, and the first, second and third connection portions (B1, B2, B3) are disposed at the arc-shaped circular opening portion.
4. The automatic collapsible duct of claim 3, wherein the collapsible vanes (12) are arranged in a circumferential array along the junction of the arcuate flared section and the arcuate circular section.
5. The automatic folding flow guide pipe for preventing accidental injury to marine fishes as claimed in claim 1, characterized in that the first folding part (13) comprises a first hydraulic rod (131), a first supporting part (C1) and a second supporting part (C2), the first supporting part (C1) is arranged at the bottom of the ship body (4), the second supporting part (C2) is arranged on the first arc-shaped baffle (1111), and two ends of the first hydraulic rod (131) are respectively hinged with the first supporting part (C1) and the second supporting part (C2).
6. The automatic folding guide pipe for preventing accidental injury to marine fishes as claimed in claim 1, wherein the second folding portion (14) comprises a second hydraulic rod (141), a third support portion (C3) and a fourth support portion (C4), the third support portion (C3) is disposed on the first arc-shaped baffle (1111), the fourth support portion (C4) is disposed on the second arc-shaped baffle (1121), and both ends of the second hydraulic rod (141) are hinged to the third support portion (C3) and the fourth support portion (C4), respectively.
7. The automatic folding guide pipe for preventing accidental injury to marine fishes as claimed in claim 1, wherein the retractable blades (12) comprise blades (121), a connecting rod (122), a hydraulic push rod (123) and a hydraulic cylinder (124), one end of each blade (121) is hinged to the inner walls of the first arc-shaped baffle (1111) and the second arc-shaped baffle (1121), one end of the connecting rod (122) is hinged to the blade (121), the other end of the connecting rod is hinged to the hydraulic push rod (123), the hydraulic push rod (123) reciprocates in the hydraulic cylinder (124), and the connecting rod (122) drives the blades (121) to rotate around the hinged position of the blades and the inner walls of the first arc-shaped baffle (1111) or the second arc-shaped baffle (1121).
8. The automatic folding flow guide pipe for preventing accidental injury of marine fishes as claimed in claim 7, wherein the inner walls of the first cambered baffle (1111) and the second cambered baffle (1121) are circumferentially provided with blade connecting shafts (F), and the blade connecting shafts (F) are circumferentially arrayed with hydraulic mounting structures (G); the upper surface and the lower surface of one end of the blade (121) are respectively provided with a third hinged part (A3) and a fourth hinged part (A4), the blade (121) is hinged with a blade connecting shaft (F) and a connecting rod (122) through the third hinged part (A3) and the fourth hinged part (A4), and a hydraulic cylinder (124) is installed on the hydraulic installation structure (G).
9. A vessel, characterized in that it comprises an automatically collapsible draft tube according to any one of claims 1 to 8.
10. A control method of an automatic folding guide pipe for preventing accidental injury of marine fishes is characterized by comprising the following steps:
folding and opening of folded cascade honeycomb duct:
under normal conditions, the foldable draft tube is in a fully opened state;
when the folding device needs to be folded, the second folding part works to drive the second arc-shaped baffle to rotate around the second hinge part and outwards open until the second arc-shaped baffle is completely folded and folded; further, the first folding part works to drive the first arc-shaped baffle plate to rotate around the first hinge part and outwards open until the first arc-shaped baffle plate and the second arc-shaped baffle plate are completely folded, retracted and attached to the bottom of the ship body;
when the first arc-shaped baffle plate needs to be opened, the first folding part works to drive the first arc-shaped baffle plate to reversely rotate around the first hinge part and retract inwards until the first arc-shaped baffle plate is completely retracted; further, the second folding part works to drive the second arc-shaped baffle plates to reversely rotate around the second hinge part and retract inwards until the second arc-shaped baffle plates are completely opened, and the two first arc-shaped baffle plates and the two second arc-shaped baffle plates form a closed structure;
expansion and retraction of retractable vanes:
when the visual detector detects that fishes or other foreign matters are about to be sucked into the propeller, the hydraulic cylinder pushes the hydraulic push rod to move backwards, the hydraulic push rod drives the connecting rod to move, and the connecting rod drives the blades to rotate around the blade connecting shaft, so that the blades are opened to form an inward-folded horn shape, and the fishes or other foreign matters are prevented from being sucked into the propeller;
when the visual detector detects that the sea surface is normal or the foldable flow guide pipe needs to be folded, the hydraulic cylinder pushes the hydraulic push rod to move forwards, the hydraulic push rod drives the connecting rod to move, and the connecting rod drives the blades to rotate reversely around the blade connecting shaft, so that the blades are folded and tightly attached to the inner wall of the flow guide pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211004735.2A CN115258113B (en) | 2022-08-22 | 2022-08-22 | Automatic folding honeycomb duct for preventing marine fish from being accidentally injured |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211004735.2A CN115258113B (en) | 2022-08-22 | 2022-08-22 | Automatic folding honeycomb duct for preventing marine fish from being accidentally injured |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115258113A true CN115258113A (en) | 2022-11-01 |
| CN115258113B CN115258113B (en) | 2023-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211004735.2A Active CN115258113B (en) | 2022-08-22 | 2022-08-22 | Automatic folding honeycomb duct for preventing marine fish from being accidentally injured |
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| Country | Link |
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| CN (1) | CN115258113B (en) |
Citations (8)
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|---|---|---|---|---|
| US3982853A (en) * | 1975-07-23 | 1976-09-28 | David Walter Beck | Folding boat propeller |
| CN107207083A (en) * | 2014-11-12 | 2017-09-26 | 洛桑联邦理工学院 | Underwater propulsion unit for submarine navigation device |
| US9914515B1 (en) * | 2014-09-11 | 2018-03-13 | Charles S. Powers | Barrel extension assemblies and methods for marine propellers |
| US10513321B1 (en) * | 2018-06-21 | 2019-12-24 | Jerry Hegel | Watercraft propulsion device |
| CN112874741A (en) * | 2021-03-23 | 2021-06-01 | 深圳市冠坚贸易有限公司 | Marine propeller capable of preventing accidental injury of aquatic large-scale fishes and mammals |
| CN112937821A (en) * | 2021-03-09 | 2021-06-11 | 北京航空航天大学 | Dual-drive foldable coaxial propeller device |
| US20210284312A1 (en) * | 2020-03-13 | 2021-09-16 | Torqeedo Gmbh | Method and Apparatus for Adjusting the Flow Properties of a Propeller |
| CN113548167A (en) * | 2021-08-27 | 2021-10-26 | 中国水产科学研究院渔业机械仪器研究所 | Grid for preventing side thruster from being wound and working method |
-
2022
- 2022-08-22 CN CN202211004735.2A patent/CN115258113B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3982853A (en) * | 1975-07-23 | 1976-09-28 | David Walter Beck | Folding boat propeller |
| US9914515B1 (en) * | 2014-09-11 | 2018-03-13 | Charles S. Powers | Barrel extension assemblies and methods for marine propellers |
| CN107207083A (en) * | 2014-11-12 | 2017-09-26 | 洛桑联邦理工学院 | Underwater propulsion unit for submarine navigation device |
| US10513321B1 (en) * | 2018-06-21 | 2019-12-24 | Jerry Hegel | Watercraft propulsion device |
| US20210284312A1 (en) * | 2020-03-13 | 2021-09-16 | Torqeedo Gmbh | Method and Apparatus for Adjusting the Flow Properties of a Propeller |
| CN112937821A (en) * | 2021-03-09 | 2021-06-11 | 北京航空航天大学 | Dual-drive foldable coaxial propeller device |
| CN112874741A (en) * | 2021-03-23 | 2021-06-01 | 深圳市冠坚贸易有限公司 | Marine propeller capable of preventing accidental injury of aquatic large-scale fishes and mammals |
| CN113548167A (en) * | 2021-08-27 | 2021-10-26 | 中国水产科学研究院渔业机械仪器研究所 | Grid for preventing side thruster from being wound and working method |
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| Publication number | Publication date |
|---|---|
| CN115258113B (en) | 2023-04-21 |
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