CN107554733A - A kind of Propeller Guard device - Google Patents
A kind of Propeller Guard device Download PDFInfo
- Publication number
- CN107554733A CN107554733A CN201710849328.4A CN201710849328A CN107554733A CN 107554733 A CN107554733 A CN 107554733A CN 201710849328 A CN201710849328 A CN 201710849328A CN 107554733 A CN107554733 A CN 107554733A
- Authority
- CN
- China
- Prior art keywords
- sawtooth
- propeller
- blade
- lid
- accommodating chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
- B63H1/14—Propellers
- B63H1/26—Blades
-
- 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
- B63H5/16—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens
- B63H5/165—Propeller guards, line cutters or other means for protecting propellers or rudders
Abstract
The present invention relates to the propulsion plant that ship in water uses, more particularly to a kind of Propeller Guard device, including propeller and stern tube shaft；The propeller includes blade and propeller hub；The sawtooth lid being slidably connected with guide margin that blade sawtooth is offered on the guide margin of the blade and is covered on blade sawtooth；Control sawtooth is provided with the propeller hub and covers the drive device that accommodating chamber is slided and be received on guide margin.The beneficial effects of the present invention are：By setting blade sawtooth on blade guide margin, twister can be cut by the rotation of propeller using while the rotation of propeller, by setting sawtooth lid, ship can be made in normal/cruise, ensure the normal work of propeller, avoid because blade zigzag fashion it is irregular caused by propeller produce a large amount of vacuoles, and then influence the normal operation of ship；The folding and unfolding of sawtooth lid is controlled by setting up drive device in propeller hub.
Description
Technical field
The present invention relates to the Propeller Guard device of the various ships travelled in water, it is related to and is wound or hindered by various twisters
The marine propeller protection hindered and propulsion plant, more particularly to a kind of Propeller Guard device.
Background technology
The serious consequence that propeller itself causes to estimate to marine organisms such as diver, frogman and sea dog dolphins, extremely
At present both at home and abroad also without effective solution, with the progress of modern marine activity, marine environment constantly deteriorates, in ocean
Rubbish floating object increase, ship navigated by water in water when, the propeller of ship be easy to by water floating object (such as pasture and water,
Fishing net, hawser etc.) wind, have influence on the normal work of propeller.Sometimes result in ship to run out of steam, cause a serious accident,
So method can effectively be solved by being badly in need of one kind based on case above.
The content of the invention
The technical problems to be solved by the invention are：There is provided a kind of can be cut the floating object for being wrapped in propeller
Cut, and when being wound without floating object, the Propeller Guard device that propeller can be run as normal propeller.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of Propeller Guard device, including spiral shell
Rotation oar and stern tube shaft, the propeller are integrally formed formula ship's propeller with stern tube shaft；Described stern tube shaft one end is stretched into beauty's frame with
Countershaft is connected, the fixed propeller of other end；
The propeller includes blade and propeller hub；Blade sawtooth is offered on the guide margin of the blade and is covered in blade saw
The sawtooth lid being slidably connected with guide margin on tooth；Covered in the propeller hub provided with control sawtooth and receiving is slided and be received on guide margin
The drive device of chamber, the accommodating chamber for storage sawtooth lid and drive device is additionally provided with the propeller hub.
Further, sawtooth platform is further opened with the guide margin, the blade sawtooth is connected on blade by sawtooth platform,
The both sides of the sawtooth platform are provided with the chute slided for sawtooth lid, and the madial wall of the sawtooth lid is provided with what is be adapted to chute
It is raised；The raised radial section is T fonts, and the chute is that the section for the open space being engaged with T font projections is T
The holding tank of font, the thickness of the sawtooth platform are less than the thickness of blade, and the thickness of the blade sawtooth is less than the thickness of sawtooth platform
Degree；The length of the sawtooth lid is longer than the length of blade sawtooth platform.
Further, institute's accommodating chamber is provided with the opening for being used for the disengaging of sawtooth lid, the cross sectional shape and sawtooth of the opening
The radial cross-sectional shape of lid is identical.
Further, spring is provided with the accommodating chamber, the spring one end is connected with sawtooth lid, and the other end is fixed on appearance
Receive the bottom of chamber.
Further, the drive device includes motor and the motor shaft of motor driving rotation, and the motor shaft passes through electricity
Machine fuselage, including the fixing end and drive end at motor body both ends are stretched out respectively, the drive end is connected with chain collector, institute
Stating chain collector includes chain and spool；One end of the chain is connected through opening with the tail end of the sawtooth lid, another
End is fixed on spool.
Further, the fixing end of the motor shaft is provided with spider gear and electromagnetic locking device.
Further, etch-proof separation seal is provided between the chain collector and motor that are located on the motor shaft
Layer.
Further, the edge of a knife direction of the blade sawtooth towards propeller advance when direction of rotation.
The beneficial effects of the present invention are：By setting blade sawtooth on blade guide margin, the rotation of propeller can be utilized
Twister is cut by the rotation of propeller while turning, by setting sawtooth lid, ship can be made in normal/cruise
In, ensure the normal work of propeller, avoid because blade zigzag fashion it is irregular caused by propeller produce a large amount of vacuoles,
And then influence the normal operation of ship；The folding and unfolding of sawtooth lid is controlled by setting up drive device in propeller hub so that the spiral shell of ship
Rotation oar the shape of the guide margin of propeller can be controlled as needed, it have it is simple in construction, cutting thoroughly, propeller work
The advantages that making efficiency high, various ships are can be applied to, to prevent the failure for being wound and being triggered by propeller；Improve anti-foreign matter
The ability of winding.
Brief description of the drawings
Fig. 1 is structure when a kind of propeller sawtooth lid of Propeller Guard device of the specific embodiment of the invention is closed
Schematic diagram；
Fig. 2 is structure when a kind of propeller sawtooth lid of Propeller Guard device of the specific embodiment of the invention is opened
Schematic diagram；
Fig. 3 is that a kind of propeller blade cut-away section structure of Propeller Guard device of the specific embodiment of the invention is shown
It is intended to；
Label declaration：
1st, propeller hub；2nd, propeller blade；3rd, sawtooth lid；4th, blade sawtooth；5th, it is raised；6th, holding tank；7th, sawtooth platform.
Embodiment
To describe the technology contents of the present invention, the objects and the effects in detail, below in conjunction with embodiment and coordinate attached
Figure is explained.
The design of most critical of the present invention is：By designing blade sawtooth in blade guide margin, floating object can be cut
Cut；By designing sawtooth lid, the folding of sawtooth lid will can be as needed controlled；Ensure the performance of propeller.
It refer to Fig. 1 to Fig. 3, a kind of Propeller Guard device, including propeller and stern tube shaft, the propeller and stern tube shaft structure
Integrated ship's propeller；Described stern tube shaft one end is stretched into beauty's frame to be connected with jackshaft, the fixed propeller of other end；
The propeller includes blade and propeller hub 1；Blade sawtooth 4 is offered on the guide margin of the blade and is covered in blade
The sawtooth lid 3 being slidably connected with guide margin on sawtooth 4；Control sawtooth lid 3 is provided with the propeller hub 1 to slide and store on guide margin
To the drive device of accommodating chamber, the accommodating chamber for storage sawtooth lid 3 and drive device is additionally provided with the propeller hub 1.
The present invention the course of work be：Ship, if when running into twister winding, is being driven during navigation by controlling
The work of device, the sawtooth lid 3 on blade guide margin is received into the accommodating chamber of propeller hub 1, expose blade sawtooth 4, to being wrapped in
Twister on propeller is cut, to be cut to finish, and after propeller disengages twister, by controlling drive device, makes saw
Tooth lid 3 is returned on the guide margin of blade, continues to navigate by water.
It was found from foregoing description, the beneficial effects of the present invention are：By setting blade sawtooth 4, energy on blade guide margin
Enough twister is cut by the rotation of propeller using while the rotation of propeller, can by setting sawtooth lid 3
Make ship in normal/cruise, ensure the normal work of propeller, avoid because the shape of blade sawtooth 4 it is irregular caused by spiral shell
Revolve oar and produce a large amount of vacuoles, and then influence the normal operation of ship；Sawtooth lid 3 is controlled by setting up drive device in propeller hub 1
Folding and unfolding so that the propeller of ship can be controlled to the shape of the guide margin of propeller as needed, and it has structure simple
It is single, cutting thoroughly, propeller works efficiency high the advantages that, can be applied to various ships, drawn with preventing from being wound by propeller
The failure of hair；Improve the ability of anti-foreign matter winding.
Further, sawtooth platform 7 is further opened with the guide margin, the blade sawtooth 4 is connected to blade by sawtooth platform 7
On, the both sides of the sawtooth platform 7 are provided with the chute slided for sawtooth lid 3, and the madial wall of the sawtooth lid 3 is provided with and chute
The projection 5 of adaptation；Raised 5 radial section is T fonts, and the chute is the open space being engaged with T fonts projection 5
Section be T fonts holding tank 6, the thickness of the sawtooth platform 7 is less than the thickness of blade, and the thickness of the blade sawtooth 4 is small
In the thickness of sawtooth platform 7；The length of the sawtooth lid 3 is longer than the length of 4, blade sawtooth.
Seen from the above description, by being provided with the chute slided for sawtooth lid 3 in the both sides of sawtooth platform 7, will can saw
Tooth lid 3 is fixed on chute, and the blade root that blade is connected with propeller hub 1 is extended close to along guide margin by blade sawtooth 4 and sawtooth platform 7
Place, space of the part for the installation of sawtooth lid 3 can be left., can be preferably solid by sawtooth lid 3 by setting T font chutes
It is scheduled on blade sawtooth 4, avoids sawtooth lid 3 from being come off from propeller blade 2；The thickness of the sawtooth platform 7 is less than the thickness of blade
Degree, the thickness of blade sawtooth 4 are less than the thickness of sawtooth platform 7, can be the leaving space of sawtooth lid 3, avoid because of sawtooth lid 3 and blade
Thickness after sawtooth 4 coordinates is more than vane thickness, and influences the propulsive performance of ship.By making the length of sawtooth lid 3 be longer than saw
The length of tooth platform 7, sawtooth lid 3 can be made in the case where not opening, blade sawtooth 4 can be formed and closed, while sawtooth lid 3
Still some ensure that sawtooth lid 3 caused will not may sawed because closing is formed to blade sawtooth 4 in accommodating chamber
A segment distance between tooth lid 3 and the accommodating chamber be present, so as to have impact on the propulsive performance of propeller.
The blade sawtooth 4 and sawtooth platform 7 extend close to just stop extending at blade root along guide margin, in the He of blade sawtooth 4
Sawtooth platform 7 is used to sawtooth lid 3 being installed to blade sawtooth to a segment distance, the space occupied of this segment distance between blade root be present
On 4；In the case that the sawtooth lid 3 closes, the space of a closing can be formed with blade guide margin.
Further, institute's accommodating chamber, which is provided with, is used for the opening that sawtooth lid 3 passes in and out, the cross sectional shape and sawtooth of the opening
The radial cross-sectional shape of lid 3 is identical.
Seen from the above description, by making the shape of accommodating chamber coordinate with the shape of sawtooth lid 3, this cooperation adds
Accommodating chamber air-tightness, water resistance can be interposed between outside, avoid water from entering in accommodating chamber；By setting up spring, in daily navigation,
Sawtooth lid 3 can be made to be in stable closure state, prevented because the loosening of sawtooth lid 3 causes the change of propulsive performance.
Further, spring is provided with the accommodating chamber, the spring one end is connected with sawtooth lid 3, and the other end is fixed on
The bottom of accommodating chamber.
Seen from the above description, during vessel motion, sawtooth lid 3 is in closed state, can be to saw by spring
Tooth lid 3 is extruded, and is ensured the tight type of sawtooth lid 3, is avoided the propulsive performance of the ship caused by the loosening of sawtooth lid 3 from sending out
Changing.And what is be provided with accommodating chamber can be not necessarily spring, can reach the device of spring effect same can also replace bullet
Spring.
Further, the drive device includes motor and the motor shaft of motor driving rotation, and the motor shaft passes through electricity
Machine fuselage, including the fixing end and drive end at motor body both ends are stretched out respectively, the drive end is connected with chain collector, institute
Stating chain collector includes chain and spool；One end of the chain is connected through opening with the tail end of the sawtooth lid 3, another
End is fixed on spool.
Seen from the above description, motor is included by drive device and motor drives the motor shaft of rotation, and in motor shaft
Chain collector and chain, the motion of chain is controlled by the rotation of controlled motor, and then control the motion of sawtooth lid 3,
So as to control the income of sawtooth lid 3 in containing cavities, when needing sawtooth lid 3 to close blade sawtooth 4, it is only necessary to stop
Power supply, passes through the effect of the spring, it becomes possible to sawtooth lid 3 is returned on blade guide margin, blade sawtooth 4 is closed；And
The aperture of sawtooth lid 3 can be controlled as needed, convenient use.
The power supply of drive device can lead to hull stern tube shaft part and be connected with electric power system on ship, be supplied by ship power supply system
Electricity, or battery can be set up in propeller hub 1, it is that battery carries out filling energy and to drive device by wireless power supply system
It is controlled.
Further, the fixing end of the motor shaft is provided with spider gear and electromagnetic locking device.
Seen from the above description, by spider gear and electromagnetic locking device, sawtooth lid 3 can be taken in accommodating chamber
Afterwards, by the cooperation of spider gear and electromagnetic locking device, fix motor shaft, motor shaft fixing end chain collector simultaneously
Also fixed, so as to which the elasticity avoided because of spring bounces back into sawtooth lid 3 on the blade guide margin.
Further, etch-proof separation seal is provided between the chain collector and motor that are located on the motor shaft
Layer.
Seen from the above description, by setting etch-proof wall between chain collector and motor, can prevent
The water for penetrating into the accommodating chamber bottom opening is entered in motor, corrosion electrical motor.
Further, the edge of a knife direction of the blade sawtooth 4 towards propeller advance when direction of rotation.
Seen from the above description, by be blade sawtooth 4 the edge of a knife towards propeller advance when direction of rotation, i.e. ship
When advancing, it is only necessary to open sawtooth lid 3, it is not necessary to doing unnecessary action, it becomes possible to effectively twister is cut
Cut, convenient use.
Embodiment 1
It refer to Fig. 1-Fig. 3, a kind of Propeller Guard device, including propeller and stern tube shaft, the propeller and stern tube shaft structure
Integrated ship's propeller；Described stern tube shaft one end is stretched into beauty's frame to be connected with jackshaft, the fixed propeller of other end；
The propeller includes blade and propeller hub 1；Blade sawtooth 4 is offered on the guide margin of the blade and is covered in blade
The sawtooth lid 3 being slidably connected with guide margin on sawtooth 4；Control sawtooth lid 3 is provided with the propeller hub 1 to slide and store on guide margin
To the drive device of accommodating chamber, the accommodating chamber for storage sawtooth lid 3 and drive device is additionally provided with the propeller hub 1.
Further, sawtooth platform 7 is further opened with the guide margin, the blade sawtooth 4 is connected to blade by sawtooth platform 7
On, the both sides of the sawtooth platform 7 are provided with the chute slided for sawtooth lid 3, and the madial wall of the sawtooth lid 3 is provided with and chute
The projection 5 of adaptation；Raised 5 radial section is T fonts, and the chute is the open space being engaged with T fonts projection 5
Section be T fonts holding tank 6, the thickness of the sawtooth platform 7 is less than the thickness of blade, and the thickness of the blade sawtooth 4 is small
In the thickness of sawtooth platform 7；The length of the sawtooth lid 3 is longer than the length of 4, blade sawtooth.
The chute is extended in the accommodating chamber along guide margin to blade root direction, and the length of the sawtooth lid 3 is longer than
The length that blade sawtooth is 4.Institute's accommodating chamber, which is provided with, is used for the opening that sawtooth lid 3 passes in and out, the cross sectional shape and saw of the opening
The radial cross-sectional shape of tooth lid 3 is identical.Spring is provided with the accommodating chamber, the spring one end is connected with sawtooth lid 3, the other end
It is fixed on the bottom of accommodating chamber.
The drive device includes motor and the motor shaft of motor driving rotation, and the motor shaft passes through motor body, wrapped
The fixing end and drive end for stretching out motor body both ends respectively are included, the drive end is connected with chain collector, and the chain is received
Storage includes chain and spool；One end of the chain is connected through opening with the tail end of the sawtooth lid 3, and the other end is fixed on
On spool.
The fixing end of the motor shaft is provided with spider gear and electromagnetic locking device.The chain being located on the motor shaft is collected
Etch-proof separation seal layer is provided between device and motor.The edge of a knife direction of the blade sawtooth 4 towards propeller advance when
Direction of rotation.
In summary, a kind of Propeller Guard device provided by the invention by blade guide margin set blade sawtooth,
Twister can be cut by the rotation of propeller using while the rotation of propeller, by setting sawtooth lid, energy
Ship is ensured the normal work of propeller in normal/cruise, avoid because blade zigzag fashion it is irregular caused by
Propeller produces a large amount of vacuoles, and then influences the normal operation of ship；Sawtooth lid is controlled by setting up drive device in propeller hub
Folding and unfolding so that the propeller of ship can be controlled to the shape of the guide margin of propeller as needed, and it has structure simple
It is single, cutting thoroughly, propeller works efficiency high the advantages that, can be applied to various ships, drawn with preventing from being wound by propeller
The failure of hair；Improve the ability of anti-foreign matter winding.
The T font chutes slided for sawtooth lid are provided with the both sides of sawtooth platform by setting up, can be more preferable by sawtooth lid
Be fixed on blade sawtooth, avoid sawtooth lid from being come off from propeller blade；The thickness of blade sawtooth is less than the thickness of sawtooth platform
Degree, can be sawtooth lid leaving space, avoid because the thickness after sawtooth lid and blade jigsaw fit is more than vane thickness, and influence
The propulsive performance of ship.
By making the length of sawtooth lid be longer than the length of sawtooth platform, sawtooth can be made to cover in the case where not opening, can
Blade sawtooth is formed and closed, at the same sawtooth lid still some in accommodating chamber, ensure that sawtooth is covered will not be because of to oar
Leaf sawtooth forms closing and a segment distance between sawtooth lid and the accommodating chamber be present caused by possibility, so as to have impact on propeller
Propulsive performance.
By making the opening shape of accommodating chamber identical with the radial shape of sawtooth lid, this cooperation adds accommodating chamber gas
Close property, water resistance can be interposed between outside, avoid water from entering in accommodating chamber；By setting up spring, in daily navigation, saw can be made
Tooth lid is in stable closure state, prevents because the loosening of sawtooth lid causes the change of propulsive performance.
During vessel motion, sawtooth lid is in closed state, and by spring, sawtooth lid can be extruded, and protects
The tight type of sawtooth lid is demonstrate,proved, avoids the propulsive performance of the ship caused by the loosening of sawtooth lid from changing.And in accommodating chamber
What is be provided with can be not necessarily spring, can reach the device of spring effect same and can also replace spring.
Motor and the motor shaft of motor driving rotation, and chain collector and chain in motor shaft are included by drive device
Bar, the motion of chain is controlled by the rotation of controlled motor, and then control the motion of sawtooth lid, so as to control the receipts of sawtooth lid
Enter into containing cavities, when needing sawtooth lid to close blade sawtooth, it is only necessary to stop power supply, pass through the work of the spring
With, it becomes possible to sawtooth lid is returned on blade guide margin, blade sawtooth is closed；And sawtooth lid can be opened as needed
Degree is controlled, convenient use.
By spider gear and electromagnetic locking device, after can sawtooth lid be taken in into accommodating chamber, by spider gear with
The cooperation of electromagnetic locking device, fixes motor shaft, is also fixed simultaneously in the chain collector of motor shaft fixing end, so as to avoid
Because the elasticity of spring bounces back into sawtooth lid on the blade guide margin.
By setting etch-proof wall between chain collector and motor, can prevent from penetrating into the accommodating chamber
The water of bottom opening is entered in motor, corrosion electrical motor.
By be blade sawtooth the edge of a knife towards propeller advance when direction of rotation, i.e., ship advance when, it is only necessary to
Sawtooth lid is opened, it is not necessary to doing unnecessary action, it becomes possible to effectively twister is cut, convenient use.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalents that bright specification and accompanying drawing content are made, or the technical field of correlation is directly or indirectly used in, similarly include
In the scope of patent protection of the present invention.
Claims (8)
1. a kind of Propeller Guard device, it is characterised in that including propeller and stern tube shaft, the propeller is integrally formed with stern tube shaft
Formula ship's propeller；Described stern tube shaft one end is stretched into beauty's frame to be connected with jackshaft, the fixed propeller of other end；
The propeller includes blade and propeller hub；Blade sawtooth is offered on the guide margin of the blade and is covered on blade sawtooth
The sawtooth lid being slidably connected with guide margin；Covered in the propeller hub provided with control sawtooth and accommodating chamber is slided and be received on guide margin
Drive device, the accommodating chamber for storage sawtooth lid and drive device is additionally provided with the propeller hub.
2. Propeller Guard device according to claim 1, it is characterised in that sawtooth platform is further opened with the guide margin,
The blade sawtooth is connected on blade by sawtooth platform, and the both sides of the sawtooth platform are provided with the chute slided for sawtooth lid,
The madial wall of the sawtooth lid is provided with the projection being adapted to chute；The raised radial section is T fonts, and the chute is
The section for the open space being engaged with T font projections is the holding tank of T fonts, and the thickness of the sawtooth platform is less than the thickness of blade
Degree, the thickness of the blade sawtooth are less than the thickness of sawtooth platform；The length of the sawtooth lid is longer than the length of blade sawtooth platform.
3. Propeller Guard device according to claim 1, it is characterised in that institute's accommodating chamber is provided with to enter for sawtooth lid
The opening gone out, the cross sectional shape of the opening are identical with the radial cross-sectional shape of sawtooth lid.
4. Propeller Guard device according to claim 1, it is characterised in that spring is provided with the accommodating chamber, it is described
Spring one end is connected with sawtooth lid, and the other end is fixed on the bottom of accommodating chamber.
5. Propeller Guard device according to claim 1, it is characterised in that the drive device includes motor and motor
The motor shaft of rotation is driven, the motor shaft passes through motor body, including stretches out fixing end and the drive at motor body both ends respectively
Moved end, the drive end are connected with chain collector, and the chain collector includes chain and spool；Wear one end of the chain
Cross opening with the tail end of the sawtooth lid to be connected, the other end is fixed on spool.
6. Propeller Guard device according to claim 5, it is characterised in that the fixing end of the motor shaft is provided with star
Gear and electromagnetic locking device.
7. Propeller Guard device according to claim 5, it is characterised in that the chain being located on the motor shaft is collected
Etch-proof separation seal layer is provided between device and motor.
8. Propeller Guard device according to claim 1, it is characterised in that the edge of a knife direction direction of the blade sawtooth
Direction of rotation when propeller advances.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710849328.4A CN107554733B (en) | 2017-09-20 | 2017-09-20 | A kind of Propeller Guard device |
| CN201810611447.0A CN108791787B (en) | 2017-09-20 | 2017-09-20 | A kind of adjustable type propeller protective device |
| CN201810611526.1A CN108820175B (en) | 2017-09-20 | 2017-09-20 | Cutting type anti-winding marine propeller |
| CN201810611438.1A CN108974299B (en) | 2017-09-20 | 2017-09-20 | Accommodating type propeller protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710849328.4A CN107554733B (en) | 2017-09-20 | 2017-09-20 | A kind of Propeller Guard device |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810611526.1A Division CN108820175B (en) | 2017-09-20 | 2017-09-20 | Cutting type anti-winding marine propeller |
| CN201810611438.1A Division CN108974299B (en) | 2017-09-20 | 2017-09-20 | Accommodating type propeller protection device |
| CN201810611447.0A Division CN108791787B (en) | 2017-09-20 | 2017-09-20 | A kind of adjustable type propeller protective device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107554733A true CN107554733A (en) | 2018-01-09 |
| CN107554733B CN107554733B (en) | 2018-06-19 |
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ID=60981582
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810611438.1A Active CN108974299B (en) | 2017-09-20 | 2017-09-20 | Accommodating type propeller protection device |
| CN201810611526.1A Active CN108820175B (en) | 2017-09-20 | 2017-09-20 | Cutting type anti-winding marine propeller |
| CN201810611447.0A Active CN108791787B (en) | 2017-09-20 | 2017-09-20 | A kind of adjustable type propeller protective device |
| CN201710849328.4A Active CN107554733B (en) | 2017-09-20 | 2017-09-20 | A kind of Propeller Guard device |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810611438.1A Active CN108974299B (en) | 2017-09-20 | 2017-09-20 | Accommodating type propeller protection device |
| CN201810611526.1A Active CN108820175B (en) | 2017-09-20 | 2017-09-20 | Cutting type anti-winding marine propeller |
| CN201810611447.0A Active CN108791787B (en) | 2017-09-20 | 2017-09-20 | A kind of adjustable type propeller protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN108974299B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108263587A (en) * | 2018-04-03 | 2018-07-10 | 中国科学院大气物理研究所 | unmanned boat propulsion device with cutting function |
| CN109178274A (en) * | 2018-11-02 | 2019-01-11 | 东台市海船用设备有限公司 | A kind of marine propeller fishing net cutter knife mechanism |
| CN109178273A (en) * | 2018-11-02 | 2019-01-11 | 东台市海船用设备有限公司 | A kind of activity installing type marine propeller fishing net cutter knife mechanism |
| CN109466733A (en) * | 2018-10-25 | 2019-03-15 | 连立华 | A kind of propeller disability multistage remedies control method |
| CN112693585A (en) * | 2021-01-15 | 2021-04-23 | 中国船舶科学研究中心 | Device for improving root cavitation of propeller for high-speed ship and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108974299B (en) * | 2017-09-20 | 2020-01-07 | 航天晨光（福建）管业科技有限公司 | Accommodating type propeller protection device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108820175A (en) | 2018-11-16 |
| CN108974299B (en) | 2020-01-07 |
| CN108974299A (en) | 2018-12-11 |
| CN108791787B (en) | 2019-08-13 |
| CN107554733B (en) | 2018-06-19 |
| CN108820175B (en) | 2019-12-17 |
| CN108791787A (en) | 2018-11-13 |
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