CN109911207A - A kind of marine foot-operated aircraft of spraying water with microbubble function - Google Patents
A kind of marine foot-operated aircraft of spraying water with microbubble function Download PDFInfo
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- CN109911207A CN109911207A CN201910253901.4A CN201910253901A CN109911207A CN 109911207 A CN109911207 A CN 109911207A CN 201910253901 A CN201910253901 A CN 201910253901A CN 109911207 A CN109911207 A CN 109911207A
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Abstract
The present invention provides a kind of marine foot-operated aircraft of spraying water with microbubble function, including motor boat, pedal and water pipe, the bottom of the pedal is equipped with seat, the bottom of the pedal is welded with spray head, jet pipe is welded on the outside of the pedal, the bottom of the pedal is equipped with boots, pulling block is installed at the top of the pedal, danger button is provided at the top of the pedal, bearing one is installed on the water pipe, switching group is equipped with by bolt on the seat, solenoid valve is installed on the inside of the jet pipe, card slot is offered at the top of the pedal, spring one is welded on the inside of the card slot, inside groove is offered on the inside of the pedal, one end of the spring two is welded with bolt, the side of the bolt is welded with steel cable, the bottom of the pedal offers mounting plate, bearing two is welded on the strut, this has micro- The marine foot-operated Flight Vehicle Design of spraying water of bubble function is reasonable, is suitble at sea to carry out the amusements such as water spray flight and plays use.
Description
Technical field
The present invention relates to microbubbles to ride flight equipment field, specially a kind of marine water spray foot with microbubble function
Step on aircraft.
Background technique
Foot-operated aircraft of spraying water is product of travelling from French overwater flight, utilizes the recoil that water injector generates on foot
You can rise to the sky on the water surface for power, is additionally provided with the nozzle manually controlled, for stablizing airflight appearance
State, it can also allow you to move under water at the bottom, and generally primer to dolphin, evoke the spray layer by layer, its movement that more someone says is such as
Steel is chivalrous general energetic, is the entertainment selection extremely flowed at present, and what foot-operated aircraft of spraying water mainly was used is mechanics, principle
It is then again to be sprayed water by the pipe by one be attached on jet water skiing ship huge pipe pumping seawater, foot of spraying water
Stepping on aircraft is the principle using water impact, will be aerial on people top with two strands of huge water columns, and getting up in offshore floating is like
" winged " equally.However the time of this " Overwater-floating " seems easy, is that user is needed to transfer the muscle of whole body and tough actually
Coordinated balance is brought, there are suitable strict requirements for physical strength, the dynamic Control of aircraft is by the control on jet water skiing ship
Personnel processed realize, diving power-assisted oxygen-increasing device common at present all have substantially entertainment it is high, it is flexible it is high, flying height is big,
The advantages that flight time is long can satisfy the aeromarine entertainment requirements of most personnel, however, for most diving
For power-assisted oxygen-increasing device, on the one hand, when carrying out flight using foot-operated aircraft of spraying water and playing, it is necessary to higher technology with
And experience, need the good sense of equilibrium, thus using most of tourist all cannot the aeromarine pleasant sensation of experience alone,
Operation is excessively difficult, is unfavorable for operating, and on the other hand, when in use, takes, and flies in order to enable personnel are more flexible on pedal
Row, needs to increase the length of water pipe, therefore when transporting water, due to the friction of water and water pipe, so that water pipe generates resistance to water,
And then water-jet velocity is reduced, increase energy consumption, in another aspect, do not have the function of safe escape, when personnel play,
Once operating failure, after personnel cannot keep balance, aircraft is easy the safety of influence personnel, and the safety for being unfavorable for personnel is escaped
It is de-.
Summary of the invention
In view of the deficienciess of the prior art, the marine water spray foot that it is an object of the present invention to provide a kind of with microbubble function
Step on aircraft, to solve the problems mentioned in the above background technology, structure of the invention is novel, vdiverse in function, be suitble at sea into
The amusements such as row water spray flight are played use.
To achieve the goals above, the present invention is to realize by the following technical solutions: one kind has the function of microbubble
Marine foot-operated aircraft of spraying water, including motor boat, pedal and water pipe, the pedal is connect by water pipe with motor boat, described
The bottom of pedal is equipped with seat, and the bottom of the pedal is welded with spray head, and jet pipe is welded on the outside of the pedal, described to step on
The bottom of plate is equipped with boots, and pulling block is equipped at the top of the pedal, and danger button is provided at the top of the pedal, described
Danger button is connect by electric wire with pedal, and bearing one is equipped on the water pipe, is equipped with out on the seat by bolt
Pass group is equipped with solenoid valve on the inside of the jet pipe, card slot is offered at the top of the pedal, is welded on the inside of the card slot
Spring one offers inside groove on the inside of the pedal, and electromagnet, the two sides weldering of the electromagnet are welded on the inside of the inside groove
It is connected to spring two, one end of the spring two is welded with bolt, and the side of the bolt is welded with steel cable, the bottom of the pedal
Mounting plate is offered, the bottom of the motor boat is equipped with high-pressure hydraulic pump by bolt, and the bottom of the high-pressure hydraulic pump is welded with
Suction pipe and filter cylinder are welded with strut on the inside of the filter cylinder, bearing two, the inner sleeve of the bearing two are welded on the strut
Equipped with microporous pipe, the top of the bearing two is welded with flabellum plate, and the bottom of the microporous pipe is welded with tracheae, the tracheae
Top is bonded with floating block.
As a kind of preferred embodiment of the invention, the switching group is connect by electric wire with solenoid valve, described urgent
Button is connect by electric wire with electromagnet.
As a kind of preferred embodiment of the invention, connecting leg is offered on the inside of the pedal, the connecting leg passes through axis
It holds one to be connected to water pipe, the water pipe is connected to respectively at jet pipe with spray head by connecting leg.
As a kind of preferred embodiment of the invention, the top of the seat is mounted on the bottom of mounting plate by bolt
The one end in portion, the water pipe is welded on high-pressure hydraulic pump.
As a kind of preferred embodiment of the invention, the filter cylinder is set in the outside of suction pipe, the flabellum plate and micro-
Hole pipe is arranged at the inside of suction pipe.
As a kind of preferred embodiment of the invention, the side of the filter cylinder offers through-hole one, the microporous pipe
Bottom offers through-hole two, and one end of the tracheae sequentially passes through through-hole one and through-hole two is connected to microporous pipe.
As a kind of preferred embodiment of the invention, the flabellum board in the outside of microporous pipe, the flabellum plate and
Microporous pipe passes through bearing two and is mounted on strut.
As a kind of preferred embodiment of the invention, the bottom of the boots is stuck in the inside of card slot, the boots card
At the top of spring one.
As a kind of preferred embodiment of the invention, the side of the boots offers pin hole, the pin hole and bolt
It matches, the bolt is connect by spring two with electromagnet.
As a kind of preferred embodiment of the invention, one end of the steel cable is welded on the side of bolt, the steel cable
The other end pass through the top of inside groove and pedal and be welded on the bottom of pulling block.
Beneficial effects of the present invention: a kind of marine foot-operated aircraft of spraying water with microbubble function of the invention, including
Motor boat, pedal, water pipe, seat, spray head, jet pipe, boots, pulling block, danger button, bearing one, switching group, solenoid valve, card slot,
It is spring one, inside groove, electromagnet, spring two, bolt, steel cable, mounting plate, high-pressure hydraulic pump, suction pipe, filter cylinder, strut, bearing two, micro-
Kong Guan, flabellum plate, tracheae, floating block.
1. this has the marine foot-operated aircraft of spraying water of microbubble function when tourist or the personnel to lack experience are desired single
When solely carrying out flight experience, seat is installed on mounting plate by bolt, personnel sit on seat, and will by safety equipment
Personnel fix, and the switching group on seat is connect by water-proof wire with pedal, since seat is located at the bottom of spray head, pass through
Motor boat opens high-pressure hydraulic pump so that personnel can solo hop phase is opened by switching group when personnel need mobile
The solenoid valve answered, so that corresponding jet pipe is sprayed water, so that pedal opposite direction is mobile, to realize personnel certainly
By flying so that do not have higher technology and experience, without the good sense of equilibrium personnel can free flight, and then make
Aeromarine pleasant sensation can be experienced alone by obtaining most of personnel, easy to operate, easy to spread.
2. there is the marine foot-operated aircraft of spraying water of microbubble function to work for this, during high-pressure hydraulic pump draws water,
Negative pressure is generated in suction pipe, so that the water in microporous pipe is evacuated, so that air enters in microporous pipe from the top of tracheae, it is empty
Gas is drawn water upwards by micro- stomatal limiting value microbubble in microporous pipe, suction pipe, so that water flow drives the agitation of flabellum plate, so that
Microbubble is quickly separated with microporous pipe, and under the stirring of flabellum plate, is evenly spread in water, microbubble water is formed, due to micro-
Air-bubble can enhance the flowing to property of water, and the friction of water and pipe inner wall can greatly be reduced in flowing, and then reduce water
Pipe improves the speed of water flow to the resistance of water convenient for extending the length of water pipe, thus increase foot-operated aircraft flying height and
Flexibility, and can reduce the energy consumption of motor boat, accomplish energy-saving and emission-reduction.
3. this has the foot-operated flight of marine water spray of microbubble function when personnel carry out oversea flight using pedal, once
There is flight failure so that personnel fall into it is moderate, can be by pressing danger button and when being difficult to keep balance again, electromagnetism
Tie Tong electricity generates magnetic force, bolt is sucked inside groove on the inside of boots, so that boots is popped up by spring one, so that personnel
It is detached from pedal, when electromagnet or danger button break down, pulling block can be pulled upwardly by personnel, so that pulling block passes through
Bolt is pulled out boots bottom by steel cable, is escaped convenient for personnel safety, protection staff safety.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the marine foot-operated aircraft of spraying water with microbubble function of the present invention；
Fig. 2 is a kind of cross-sectional view of the pedal of the marine foot-operated aircraft of spraying water with microbubble function of the present invention；
Fig. 3 is a kind of cross-sectional view of the high-pressure hydraulic pump of the marine foot-operated aircraft of spraying water with microbubble function of the present invention；
Fig. 4 is a kind of structural representation of the flabellum plate of the marine foot-operated aircraft of spraying water with microbubble function of the present invention
Figure；
In figure: 1- motor boat, 2- pedal, 3- water pipe, 4- seat, 5- spray head, 6- jet pipe, 7- boots, 8- pulling block, 9- are urgent
Button, 10- bearing one, 11- switching group, 12- solenoid valve, 13- card slot, 14- spring one, 15- inside groove, 16- electromagnet, 17- bullet
Spring two, 18- bolt, 19- steel cable, 20- mounting plate, 21- high-pressure hydraulic pump, 22- suction pipe, 23- filter cylinder, 24- strut, 25- bearing two,
26- microporous pipe, 27- flabellum plate, 28- tracheae, 29- floating block.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
The present invention provides a kind of technical solution referring to FIG. 1 to FIG. 4: a kind of marine water spray foot with microbubble function
Aircraft, including motor boat 1, pedal 2 and water pipe 3 are stepped on, the pedal 2 is connect by water pipe 3 with motor boat 1, the pedal 2
Bottom is equipped with seat 4, and the bottom of the pedal 2 is welded with spray head 5, and the outside of the pedal 2 is welded with jet pipe 6, described to step on
The bottom of plate 2 is equipped with boots 7, and the top of the pedal 2 is equipped with pulling block 8, and the top of the pedal 2 is provided with danger button
9, the danger button 9 is connect by electric wire with pedal 2, and bearing 1 is equipped on the water pipe 3, is passed through on the seat 4
Bolt is equipped with switching group 11, and the inside of the jet pipe 6 is equipped with solenoid valve 12, and the top of the pedal 2 offers card slot 13,
The inside of the card slot 13 is welded with spring 1, and the inside of the pedal 2 offers inside groove 15, the inside weldering of the inside groove 15
It is connected to electromagnet 16, the two sides of the electromagnet 16 are welded with spring 2 17, and one end of the spring 2 17 is welded with bolt 18,
The side of the bolt 18 is welded with steel cable 19, and the bottom of the pedal 2 offers mounting plate 20, the bottom of the motor boat 1
High-pressure hydraulic pump 21 is installed by bolt, the bottom of the high-pressure hydraulic pump 21 is welded with suction pipe 22 and filter cylinder 23, the filter cylinder 23
Inside be welded with strut 24, be welded with bearing 2 25 on the strut 24, the inner sleeve of the bearing 2 25 is equipped with microporous pipe
26, the top of the bearing 2 25 is welded with flabellum plate 27, and the bottom of the microporous pipe 26 is welded with tracheae 28, the tracheae 28
Top be bonded with floating block 29.
As a kind of preferred embodiment of the invention, the switching group 11 is connect by electric wire with solenoid valve 12, described
Danger button 9 is connect by electric wire with electromagnet 16.
As a kind of preferred embodiment of the invention, the inside of the pedal 2 offers connecting leg, and the connecting leg passes through axis
It holds 1 to be connected to water pipe 3, the water pipe 3 is connected to respectively at jet pipe 6 with spray head 5 by connecting leg.
As a kind of preferred embodiment of the invention, the top of the seat 4 is mounted on mounting plate 20 by bolt
One end of bottom, the water pipe 3 is welded on water pump 21.
As a kind of preferred embodiment of the invention, the filter cylinder 23 is set in the outside of suction pipe 22, the flabellum plate
27 and microporous pipe 26 be arranged at the inside of suction pipe 22.
As a kind of preferred embodiment of the invention, the side of the filter cylinder 23 offers through-hole one, the microporous pipe
26 bottom offers through-hole two, and one end of the tracheae 28 sequentially passes through through-hole one and through-hole two is connected to microporous pipe 26.
As a kind of preferred embodiment of the invention, the flabellum plate 27 is stuck in the outside of microporous pipe 26, the flabellum
Plate 27 and microporous pipe 26 are mounted on strut 24 by bearing 2 25.
As a kind of preferred embodiment of the invention, the bottom of the boots 7 is stuck in the inside of card slot 13, the boots
7 are stuck in the top of spring 1.
As a kind of preferred embodiment of the invention, the side of the boots 7 offers pin hole, the pin hole and bolt
18 match, and the bolt 18 is connect by spring 2 17 with electromagnet 16.
As a kind of preferred embodiment of the invention, one end of the steel cable 19 is welded on the side of bolt 18, described
The other end of steel cable 19 passes through the top of inside groove 15 and pedal 2 and is welded on the bottom of pulling block 8.
Working principle: the device provides required electricity by the engine of motor boat 1 for all electrical equipments of the present apparatus
Can, in use, high-pressure hydraulic pump 21 is opened by motor boat 1, so that high-pressure hydraulic pump 21 will be extra large in foot's insertion boots 7 of personnel
Water through filter cylinder 23 filtering after by the absorption of suction pipe 22 after enter high-pressure hydraulic pump 21 in, by water pipe 3 transport, make it from spray head
5 spray downwards, and pedal 2 flies upwards by the reverse impact power sprayed water, during high-pressure hydraulic pump 21 draws water, suction pipe 22
Interior generation negative pressure, so that the water in microporous pipe 26 is evacuated, so that air enters in microporous pipe 26 from the top of tracheae 28,
Air is drawn water upwards by micro- stomatal limiting value microbubble in microporous pipe 26, suction pipe 22, so that water flow drives flabellum plate 27 to stir,
So that microbubble is quickly separated with microporous pipe 26, and under the stirring of flabellum plate 27, is evenly spread in water, micro- gas is formed
It is soaked, since microbubble water can enhance the flowing to property of water, rubbing for water and 3 inner wall of water pipe can greatly be reduced in flowing
It wipes, and then reduces water pipe and the speed of water flow is improved convenient for extending the length of water pipe 3 to the resistance of water, to increase foot-operated flight
The flying height and flexibility of device, and can reduce the energy consumption of motor boat 1, accomplish energy-saving and emission-reduction, as tourist or lacks
When the personnel of weary experience want individually to carry out flight experience, seat 4 is installed on mounting plate 20 by bolt, personnel sit on seat
On chair 4, and personnel are fixed by safety equipment, and the switching group 11 on seat 4 are connect by water-proof wire with pedal 2,
Since seat 4 is located at the bottom of spray head 5, by motor boat 1 open high-pressure hydraulic pump 21 so that personnel can solo hop,
When personnel need mobile, corresponding solenoid valve 12 is opened by switching group 11, so that corresponding jet pipe 6 is sprayed water,
So that 2 opposite direction of pedal is mobile, thus realize personnel's free flight, so that do not have higher technology and experience,
Do not have the good sense of equilibrium personnel can free flight so that most of personnel can experience alone it is aeromarine
Pleasant sensation, it is easy to operate, it is easy to spread, when personnel are when carrying out oversea flight using pedal 2, once there is flight failure, so that
Personnel fall into it is moderate, can be by pressing danger button 9 and when being difficult to keep balance again, electromagnet 16, which is powered, generates magnetic force,
Bolt 18 is sucked into inside groove 15 on the inside of boots 7, so that boots 7 is popped up by spring 1, so that personnel and pedal 2
It is detached from, when electromagnet 16 or danger button 11 break down, pulling block 8 can be pulled upwardly by personnel, so that pulling block 8 passes through
Bolt 18 is pulled out 7 bottom of boots by steel cable 19, is escaped convenient for personnel safety, protection staff safety.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, for this field skill
For art personnel, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from spirit of the invention or
In the case where essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention
It is interior.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of marine foot-operated aircraft of spraying water with microbubble function, it is characterised in that: including motor boat (1), pedal (2)
With water pipe (3), the pedal (2) is connect by water pipe (3) with motor boat (1), and the bottom of the pedal (2) is equipped with seat
(4), the bottom of the pedal (2) is welded with spray head (5), is welded with jet pipe (6) on the outside of the pedal (2), the pedal (2)
Bottom be equipped with boots (7), be equipped with pulling block (8), be provided at the top of the pedal (2) tight at the top of the pedal (2)
Anxious button (9), the danger button (9) are connect by electric wire with pedal (2), are equipped with bearing one (10) on the water pipe (3),
It is equipped with switching group (11) on the seat (4) by bolt, is equipped with solenoid valve (12) on the inside of the jet pipe (6), it is described
It is offered at the top of pedal (2) card slot (13), spring one (14) is welded on the inside of the card slot (13), the pedal (2)
Inside offers inside groove (15), is welded with electromagnet (16) on the inside of the inside groove (15), the two sides weldering of the electromagnet (16)
It is connected to spring two (17), one end of the spring two (17) is welded with bolt (18), and the side of the bolt (18) is welded with steel
It restricts (19), the bottom of the pedal (2) offers mounting plate (20), and the bottom of the motor boat (1) is equipped with height by bolt
Water pump (21), the bottom of the high-pressure hydraulic pump (21) are welded with suction pipe (22) and filter cylinder (23), the inside of the filter cylinder (23)
It is welded with strut (24), bearing two (25) is welded on the strut (24), the inner sleeve of the bearing two (25) is equipped with micropore
It manages (26), is welded with flabellum plate (27) at the top of the bearing two (25), the bottom of the microporous pipe (26) is welded with tracheae
(28), floating block (29) are bonded at the top of the tracheae (28).
2. a kind of marine foot-operated aircraft of spraying water with microbubble function according to claim 1, it is characterised in that: institute
It states switching group (11) to connect by electric wire with solenoid valve (12), the danger button (9) is connect by electric wire with electromagnet (16).
3. a kind of marine foot-operated aircraft of spraying water with microbubble function according to claim 1, it is characterised in that: institute
It states and offers connecting leg on the inside of pedal (2), the connecting leg is connected to by bearing one (10) with water pipe (3), and the water pipe (3) passes through
Connecting leg is connected to respectively at jet pipe (6) with spray head (5).
4. a kind of marine foot-operated aircraft of spraying water with microbubble function according to claim 1, it is characterised in that: institute
The top for stating seat (4) is mounted on the bottom of mounting plate (20) by bolt, and one end of the water pipe (3) is welded on high-pressure hydraulic pump
(21) on.
5. a kind of marine foot-operated aircraft of spraying water with microbubble function according to claim 1, it is characterised in that: institute
The outside that filter cylinder (23) is set in suction pipe (22) is stated, the flabellum plate (27) and microporous pipe (26) are arranged at the interior of suction pipe (22)
Side.
6. a kind of marine foot-operated aircraft of spraying water with microbubble function according to claim 1, it is characterised in that: institute
The side for stating filter cylinder (23) offers through-hole one, and the bottom of the microporous pipe (26) offers through-hole two, the tracheae (28)
One end sequentially passes through through-hole one and through-hole two and is connected to microporous pipe (26).
7. a kind of marine foot-operated aircraft of spraying water with microbubble function according to claim 1, it is characterised in that: institute
The outside that flabellum plate (27) is stuck in microporous pipe (26) is stated, the flabellum plate (27) and microporous pipe (26) are pacified by bearing two (25)
On strut (24).
8. a kind of marine foot-operated aircraft of spraying water with microbubble function according to claim 1, it is characterised in that: institute
The bottom for stating boots (7) is stuck in the inside of card slot (13), and the boots (7) is stuck in the top of spring one (14).
9. a kind of marine foot-operated aircraft of spraying water with microbubble function according to claim 1, it is characterised in that: institute
The side for stating boots (7) offers pin hole, and the pin hole is matched with bolt (18), and the bolt (18) passes through spring two (17)
It is connect with electromagnet (16).
10. a kind of marine foot-operated aircraft of spraying water with microbubble function according to claim 1, it is characterised in that:
One end of the steel cable (19) is welded on the side of bolt (18), and the other end of the steel cable (19) passes through inside groove (15) and pedal
(2) top and the bottom for being welded on pulling block (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910253901.4A CN109911207A (en) | 2019-03-30 | 2019-03-30 | A kind of marine foot-operated aircraft of spraying water with microbubble function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910253901.4A CN109911207A (en) | 2019-03-30 | 2019-03-30 | A kind of marine foot-operated aircraft of spraying water with microbubble function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109911207A true CN109911207A (en) | 2019-06-21 |
Family
ID=66967901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910253901.4A Withdrawn CN109911207A (en) | 2019-03-30 | 2019-03-30 | A kind of marine foot-operated aircraft of spraying water with microbubble function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109911207A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110901910A (en) * | 2019-12-10 | 2020-03-24 | 武汉合厚丰玩具有限公司 | Automatic jet propeller for waterborne aircraft |
| CN114973771A (en) * | 2022-04-15 | 2022-08-30 | 重庆交通大学 | Bridge active ship collision prevention method |
-
2019
- 2019-03-30 CN CN201910253901.4A patent/CN109911207A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110901910A (en) * | 2019-12-10 | 2020-03-24 | 武汉合厚丰玩具有限公司 | Automatic jet propeller for waterborne aircraft |
| CN114973771A (en) * | 2022-04-15 | 2022-08-30 | 重庆交通大学 | Bridge active ship collision prevention method |
| CN114973771B (en) * | 2022-04-15 | 2024-02-09 | 重庆交通大学 | Active ship collision prevention method for bridge |
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190621 |
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| WW01 | Invention patent application withdrawn after publication |