CN201962659U - Water surface cleaning device for ship model towing tank - Google Patents
Water surface cleaning device for ship model towing tank Download PDFInfo
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- CN201962659U CN201962659U CN2010206199302U CN201020619930U CN201962659U CN 201962659 U CN201962659 U CN 201962659U CN 2010206199302 U CN2010206199302 U CN 2010206199302U CN 201020619930 U CN201020619930 U CN 201020619930U CN 201962659 U CN201962659 U CN 201962659U
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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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
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Abstract
The utility model provides a water surface cleaning device for a ship model towing tank. The water surface cleaning device comprises a vehicle body part, a wiper system, a sewage collecting system and a control box, wherein the vehicle body part mainly comprises a vehicle frame, wheels, a driving box, a handrail and a staircase, and the handrail and the staircase are arranged at one end of the vehicle frame; the wiper system mainly comprises a main scraping plate, a flexible wall plastering scraping plate and a lifting mechanism; the sewage collecting system mainly comprises a water tank, a water inlet device, a water inlet hose, a water discharging hose, a vacuum-pumping pump, a vacuum-pumping pipe and a sewage discharging pump; the control box comprises a forward button, a backward button, a lift button, a fall button, a vacuum-pumping pump control button, a sewage discharging pump control button and a power switch. The water surface cleaning device has the characteristics of self-driving function, high sewage removal efficiency, good sewage removal effect and low manpower cost, the sewage is collected in a concentrated way, and the cleaning device is convenient to use and operate and is suitable for the water surface cleaning of the ship model towing tank, and is as well as suitable for cleaning the dirty oil, the floating dust and other tiny floating matters in various pools and water tanks with travelling rails.
Description
Technical field
The utility model relates to a kind of cleaning device, specifically a kind of water-surface cleaning device.
Background technology
Ship model test towing tank is a kind of equipment of boats and ships hydrodynamic test, is the experimental tank of understanding Ship Motion, the speed of a ship or plane, propeller power and other performances with the method for ship model experiment.First ship model experimental tank created at Torquay by Britain shipbuilding scholar W. Fu Laode in 1872 in the world.Through 100 years of development, seat surplus the towing basin 150 is successively built in countries in the world, wherein the long half that accounts for that surpasses 100 meters in pond.Ship model test towing tank pond body is a reinforced concrete structure, is generally rectangle, lays track on the pool wall of both sides, and trailer is walked in orbit, and towed model is tested.
Ship model test towing tank is all kinds of rivers and lakes of simulation and marine environment, carries out the important place of ship model experiment, is mainly used in Ship Resistance, propelling, the anti-experimental study that involves maneuverability.When carrying out ship model experiment, there are certain influence in the sump oil of the water surface, floating dust and other small floating things to the model testing result, and removing ship model test towing tank water surface sump oil, floating dust and other small floating things how effectively, quickly is the important prerequisite that guarantees model testing precision and efficient.At present, domestic and international ship model test towing tank adopts cursory more or scraper plate is scraped water, concentrates the remittance dirt, removes contamination.Promptly the cursory or scraper plate by artificial towing with sump oil, floating dust and other small floating thing centralized collection, adopts gutter the dirt Artesian Drainage to be removed or the pump eliminating then, or adopts the utensil that is filled with water manually to remove dirt.Above-mentioned ship model test towing tank water surface cleaning has the following disadvantages: (1) automaticity is not high, and scrubbing efficient is low; (2) manpower consumption is bigger; (3) dirt removal is not thorough; (4) waste water resource.At the problems referred to above of domestic and international ship model test towing tank water surface cleaning, utility model a kind ofly have a self-driven function, the automaticity and the efficient height of removing contamination, dirt removal is effective, is applicable to the water-surface cleaning device of ship model test towing tank.
Publication number is the manufacture method that discloses a kind of greasy dirt water-surface cleaning device in the patent document of CN 1456514A, is to become cleaning device as the sorbing material of greasy dirt with the sponge rubber system with people's hair or poultry feather.The greasy dirt water-surface cleaning device that this utility model is made as long as contact contains fuel oil, animal wet goods water oil stain thing, can absorb rapidly, high adsorption capacity, and it is fast to remove the greasy dirt thing; Simultaneously, also have simple in structurely, make easily, method of operating is simple and convenient, uses the low characteristics of running cost.And used sorbing material has the dirty selectivity of oil suction, and oil is directly separated with water, the just recyclable oil plant of light slightly pressure; Operation is reliable, and the efficient height can not produce secondary pollution again, and can repeated multiple times use.Can be directly used in the sea area, rivers and lakes and industry, urban life contain the cleaning of fuel oil, animals and plants wet goods oily water face, and cleaning effect is good, can reach the environmental regulations requirement fully, therefore, have the market demand and good environmental benefit widely.
Summary of the invention
The purpose of this utility model is to provide a kind of self-driven function that has, the dirt centralized collection, and the efficient of removing contamination height, effective, the manpower consumption is few, uses and easy to operate ship model test towing tank water-surface cleaning device.
The purpose of this utility model is achieved in that
Ship model test towing tank water-surface cleaning device of the present utility model comprises the car body part, scrapes water system, dirt collecting system and control cabinet; Described car body part comprises that mainly vehicle frame, wheel, driving box, handrail and ascending stair, handrail and ascending stair are arranged at an end of vehicle frame, and wheel places the vehicle frame below, is provided with drive motors and travelling gear in the driving box and drives wheel; Scrape water system and mainly comprise main scraper plate, flexible adherent scraper plate and elevating mechanism, flexible adherent scraper plate is connected main scraper plate two ends, and main scraper plate is installed on the vehicle frame by two cover elevating mechanisms; Dirt collecting system mainly comprises water tank, water inlet device, water supply hose, scupper hose, vacuum pumping pump, vacuum-pumping tube and dredge pump, water tank is provided with water inlet and vacuum orifice, water inlet links to each other with the water inlet device with water supply hose, vacuum orifice links to each other with vacuum pumping pump with vacuum-pumping tube, the water inlet device comprises handle, water inlet steel pipe and inlet, also be provided with sewage draining exit on the tank box, sewage draining exit links to each other with scupper hose; Control cabinet comprises forwarding button, back, rises button, falls button, vacuum pumping pump control button, dredge pump control button, power switch.
The utility model can also comprise:
1, described vehicle frame is a steel skeleton construction, and bottom surface and front and back are welded with steel plate.
2, described elevating mechanism comprises connecting rod, the position adjustments plate, guide peg, guide rail pole, elevating lever, lower bearing housing, top bearing housing, lifting motor and lifting tooth roller box, main scraper plate top is provided with two connecting rods, the connecting rod upper end links to each other with the position adjustments plate, the position adjustments plate is provided with guide peg, guide peg comprises the body of rod and guide collar two parts, guide rail pole is fixed on the vehicle frame, have screw in the middle of the position adjustments plate, elevating lever is connected with the position adjustments plate by screw, and turn up and down in screw, the elevating lever two ends are provided with bearing housing, bearing housing is fixed on the vehicle frame by bearing support, and elevating lever top is with lifter wheel, and lifter wheel places in the lifting tooth roller box, the lifting tooth roller box is furnished with screw thread to the elevating lever between the lower bearing housing, lifting motor drives the elevating lever rotation by the lifting tooth roller box.
3, described inlet is the diffused funnel structure, and inlet is provided with triangular-notch weir.
4, on the handle of water inlet device hook is set.
The utility model provides a kind of self-driven function that has, the dirt centralized collection, the efficient of removing contamination height, effective, the manpower consumption is few, use and easy to operate ship model test towing tank water-surface cleaning device, this device also is applicable to the cleaning of sump oil, floating dust and other small floating things of all kinds of ponds that are provided with Crane Rail and tank.
The main feature of the ship model test towing tank water-surface cleaning device that the utility model is related: (1) is used and is easy to operate; (2) have self-driven function, adopt scraper plate to compile dirt, negative pressure suction trapped dirt, the efficient of removing contamination height, the manpower consumption is few; (3) can remove pond water surface sump oil, floating dust and other small floating things; (4) adopt diffused triangular-notch weir inlet, the collection efficiency height, it is effective to remove contamination, and has avoided the waste of water resource.
Ship model test towing tank water-surface cleaning device of the present utility model and publication number are that the difference of the manufacture method of disclosed greasy dirt water-surface cleaning device in the patent document of CN 1456514A mainly contains: (1) content is different.Publication number is the manufacture method that CN 1456514A patent is mainly introduced the greasy dirt water-surface cleaning device, and the utility model mainly provides a kind of ship model test towing tank water-surface cleaning device; (2) the applied environment difference of cleaning device.Publication number is that the cleaning device of CN 1456514A patent is mainly used in the oil pollution open waters, and the utility model device is mainly used in ship model test towing tank, also can be applicable to have all kinds of ponds and the tank of Crane Rail; (3) cleaning object difference.Publication number is that the cleaning device of CN 1456514A patent is mainly used in cleaning water surface sump oil, and device of the present utility model can be removed sump oil, floating dust and other small floating things; (4) structure of device is formed different with form; (5) the device operating principle difference of removing contamination.Publication number is that the cleaning device of CN 1456514A patent is to utilize the adsorptivity of material to remove sump oil, and the utility model is to utilize the scraper plate remittance dirty, and sump oil, floating dust and other small floating things are removed in the negative pressure suction.
Description of drawings
Fig. 1 ship model test towing tank water-surface cleaning device structure is always schemed;
Fig. 2 scrapes the water system structure chart;
Fig. 3 dirt collecting system structure chart;
Fig. 4 water tank cut-away view;
Fig. 5 triangular-notch weir partial structurtes figure;
Fig. 6 control cabinet control block diagram.
The specific embodiment
The technical solution of the utility model comprises the car body part, scrapes water system, dirt collecting system and control cabinet.
The car body part mainly comprises vehicle frame, wheel, driving box, handrail and ascending stair.Vehicle frame is a steel skeleton construction, and steel plate is established in bottom surface and front and back weldering.The vehicle frame left end is provided with handrail and ascending stair, and the below is provided with wheel, and the wheel inboard is provided with guide margin, makes the car body part only along the orbital direction even running.Be provided with drive motors and travelling gear in the driving box, be used for wheel drive;
Scrape water system and mainly comprise main scraper plate, flexible adherent scraper plate, connecting rod, position adjustments plate, guide peg, guide rail pole, elevating lever, lower bearing housing, top bearing housing, lifting motor and lifting tooth roller box.Main scraper plate two ends are connected with flexible adherent scraper plate, and flexible adherent scraper plate has the certain elastic deformation ability, when guaranteeing that main scraper plate is close to pool wall, realize that horizontal micro-displacement buffering regulates.Main scraper plate top is provided with two connecting rods, and the connecting rod upper end links to each other with the position adjustments plate.The position adjustments plate is provided with guide peg, and guide peg comprises the body of rod and guide collar two parts, can slide up and down along guide rail pole, and guide rail pole is fixed on the vehicle frame.Have screw in the middle of the position adjustments plate, elevating lever is connected with the position adjustments plate by screw, and turn up and down in screw.The elevating lever two ends are provided with bearing housing, and bearing housing is fixed on the vehicle frame by bearing support, and the elevating lever two ends can be suitable in bearing housing, be rotated counterclockwise.Elevating lever top is with lifter wheel, and lifter wheel places in the lifting tooth roller box.The lifting tooth roller box is furnished with screw thread to the elevating lever between the lower bearing housing, lifting motor drives the elevating lever rotation by the lifting tooth roller box, changes the height of position adjustments plate, and then regulates the height of main scraper plate and flexible adherent scraper plate.
Dirt collecting system mainly comprises water tank, water inlet device, water supply hose, scupper hose, vacuum pumping pump, vacuum-pumping tube and dredge pump.Water tank is provided with water inlet and vacuum orifice.Water inlet links to each other with the water inlet device with water supply hose, and vacuum orifice links to each other with vacuum pumping pump with vacuum-pumping tube.Inboard, case top is welded with dividing plate, has air vent on the dividing plate, is used for airflow and enters vacuum pumping pump with the water that prevents to splash.The water inlet device comprises handle, hook, water inlet steel pipe and inlet.Inlet adopts the diffused funnel structure, and inlet is provided with triangular-notch weir, making the catchments efficient height of removing contamination, and dirt removal is thorough.Also be provided with sewage draining exit on the tank box, sewage draining exit links to each other with scupper hose, by the dredge pump blowdown.
Control cabinet comprises forwarding button, back, rises button, falls button, vacuum pumping pump control button, dredge pump control button, power switch.Control cabinet is used to realize the start-stop control to advance and retreat, lifting control and the vacuum pumping pump and the dredge pump of car body part.
For example the utility model is elaborated below in conjunction with accompanying drawing:
In conjunction with Fig. 1-Fig. 6, the utility model patent comprises the car body part, scrapes water system, dirt collecting system and control cabinet.
The car body part mainly comprises vehicle frame 11, wheel 12, driving box 13, handrail 14 and ascending stair 15.Vehicle frame 11 adopts steel skeleton construction, and to guarantee that vehicle frame 11 has enough structural strengths, steel plate 16 is established in vehicle frame 11 bottom surfaces and front and back weldering, to set up semiclosed workspace.Vehicle frame 11 left ends are provided with handrail 14 and ascending stair 15, are convenient to the staff and get on the bus.Wheel 12 is positioned at the left and right sides of vehicle frame 11 belows, and wheel 12 inboards are provided with guide margin 17, makes the car body part only along the orbital direction even running.Be provided with drive motors 18 and travelling gear 19 in the driving box 13, be used for wheel 12 and drive.
Scrape water system and mainly comprise main scraper plate 21, flexible adherent scraper plate 22, connecting rod 23, position adjustments plate 24, guide peg 25, guide rail pole 26, elevating lever 27, lower bearing housing 28, top bearing housing 29, lifting motor 210 and lifting tooth roller box 211.Main scraper plate 21 is a steel sheet, height is between 100-150mm, two ends are connected with flexible adherent scraper plate 22, flexible adherent scraper plate 22 is the rectangular rubber plate, height equates with main scraper plate 21, have the certain elastic deformation ability, when guaranteeing that main scraper plate 21 is close to pool wall, realize that horizontal micro-displacement buffering regulates.Main scraper plate 21 tops are welded with two connecting rods 23, and connecting rod 23 upper ends link to each other with position adjustments plate 24.Position adjustments plate 24 is provided with guide peg 25, and guide peg 25 comprises the body of rod 212 and guide collar 213 two parts, can slide up and down along guide rail pole 26, and guide rail pole 26 is fixed on the vehicle frame 11, and 11 of vehicle frames have certain interval.Have screw in the middle of the position adjustments plate 24, elevating lever 27 is connected with position adjustments plate 24 by screw, and turn up and down in screw, changes the position of position adjustments plate 24.Elevating lever 27 two ends are respectively equipped with lower bearing housing 28 and top bearing housing 29, and lower bearing housing 28 is fixed on the vehicle frame 11 by step 214, and top bearing housing 29 is fixed on the vehicle frame 11 by top chock 215.Elevating lever 27 two ends can be suitable in bearing housing 28 and 29, be rotated counterclockwise.Elevating lever 27 tops are with lifter wheel 216, and lifter wheel 216 places in the lifting tooth roller box 211, and lifting motor 210 is by other gear driven lifter wheels 216 in the lifting tooth roller box 211 and elevating lever 27 rotations.Lifting tooth roller box 211 is furnished with screw thread to the elevating lever 27 between the lower bearing housing 28, lifting motor 210 drives elevating lever 27 rotations by lifting tooth roller box 211, changes the height of position adjustments plate 24, and then regulates the height of main scraper plate 21 and flexible adherent scraper plate 22.Scrape water system and be located at vehicle frame 11 front sides, with convenient dirt and the trapped dirt of converging.
Dirt collecting system mainly comprises water tank 31, water inlet device 32, water supply hose 33, scupper hose 34, vacuum pumping pump 35, vacuum-pumping tube 36 and dredge pump 37.Water tank 31 adopts steel plate wall, rectangular box.Left side, 31 casees tops of water tank is provided with water inlet 312, and top, water tank 31 casing right sides is provided with vacuum orifice 313.Water inlet 312 is connected with water supply hose 33 and water inlet device 32, and vacuum orifice 313 is connected with vacuum-pumping tube 36 and vacuum pumping pump 35.Water inlet device 32 comprises handle 39, hook 38, water inlet steel pipe 310 and inlet 311.Inlet 311 adopts the diffused funnel structures, and inlet 311 is provided with triangular-notch weir 317, making the catchments efficient height of removing contamination, and dirt removal is thorough.Inboard, 31 casees tops of water tank is welded with the three 1/2 high steel dividing plates 314 of water tank, has some air vents 315 on the dividing plate 314, is used for airflow and enters vacuum pumping pump 35 with the water that prevents to splash.Below, water tank 31 casing right sides is provided with sewage draining exit 316, and sewage draining exit 316 is connected with scupper hose 34 and dredge pump 37.Water tank 31 casings left side wall is provided with liquid level observation port 318, is used to observe water tank 31 water levels.After water tank 31 water are full, close vacuum pumping pump 35, start dredge pump 37 blowdowns.Water tank 31 is located at vehicle frame 11 rear sides, and the time spent is not hung on vehicle frame 11 front sides by linking up with 38 to water inlet device 32.
A kind of ship model test towing tank water-surface cleaning device operating principle and work engineering:
The staff is after ascending stair 15 is climbed up vehicle frame 11, open the power switch 48 of control cabinet 41, by decline button 45, at this moment, lifting motor 210 rotates in lower bearing housing 28 and top bearing housing 29 through the gear drive drive elevating lever 27 of lifting tooth roller box 211, position adjustments plate 24 is through 26 effects of guide peg 25 and guide rail pole, moves down along the screw thread of elevating lever 27, realizes the control to main scraper plate 21 and 22 landing of flexible adherent scraper plate.
When main scraper plate 21 and flexible adherent scraper plate 22 drop to about 1/2 plate hight immersed depth, by landing button 45, main scraper plate 21 and flexible adherent scraper plate 22 fixed-site.At this moment, press the forwarding button 42 on the control cabinet 41, the drive motors 18 in the driving box 13 drive wheels 12 through travelling gear 19 and rotate, and then drive car body and move ahead, and scraper plate is scraped the water surface, compiles dirt.
After package unit walks to end dock place, pond, pressed the forwarding button 42 on the control cabinet 41, the device stop motion, dirt comes together in dock.Press vacuum pumping pump control button 46, return pump 35 begins to bleed, and forms negative pressure in the water tank 31.The inlet 311 of water inlet device 32 is placed the underwater that contains floating pollutant, the suction of water tank 31 negative pressure, the mixture of dirt and water flows in the water tank 31 through inlet 311, water inlet steel pipe 310, water supply hose 33.Removable water inlet device 32 during suction is to remove the dirt of zones of different.Observe the water level observation port 318 on the water tank 31, treat that completely the back is by playing vacuum pumping pump button 46 for water tank 31 water, water tank 31 stops suction and trapped dirt, and the device 32 of will intaking is hung on vehicle frame 11 front sides.Open dredge pump 37, dirt in the water tank 31 and sewage are got rid of.If dirt is not removed totally in the dock, press vacuum pumping pump 35 once more, repeat above-mentioned work, clean until the water surface.
Blowdown is closed dredge pump 37 after finishing, and presses and rises button 44, and the gear drive of lifting motor 210 in lifting tooth roller box 211 drives elevating lever 27 and rotate, and improves the height of position adjustments plate 24, promotes main scraper plate 21 and flexible adherent scraper plate 22.After main scraper plate 21 and flexible adherent scraper plate 22 rise to proper height, press back 43, device falls back on the pond tail end, has pressed back 43, install out of service, the end-of-job of removing contamination.
Claims (5)
1. a ship model test towing tank water-surface cleaning device comprises the car body part, scrapes water system, dirt collecting system and control cabinet; It is characterized in that: described car body part comprises that mainly vehicle frame, wheel, driving box, handrail and ascending stair, handrail and ascending stair are arranged at an end of vehicle frame, and wheel places the vehicle frame below, is provided with drive motors and travelling gear in the driving box and drives wheel; Scrape water system and mainly comprise main scraper plate, flexible adherent scraper plate and elevating mechanism, flexible adherent scraper plate is connected main scraper plate two ends, and main scraper plate is installed on the vehicle frame by two cover elevating mechanisms; Dirt collecting system mainly comprises water tank, water inlet device, water supply hose, scupper hose, vacuum pumping pump, vacuum-pumping tube and dredge pump, water tank is provided with water inlet and vacuum orifice, water inlet links to each other with the water inlet device with water supply hose, vacuum orifice links to each other with vacuum pumping pump with vacuum-pumping tube, the water inlet device comprises handle, water inlet steel pipe and inlet, also be provided with sewage draining exit on the tank box, sewage draining exit links to each other with scupper hose; Control cabinet comprises forwarding button, back, rises button, falls button, vacuum pumping pump control button, dredge pump control button, power switch.
2. a kind of ship model test towing tank water-surface cleaning device according to claim 1 is characterized in that: described vehicle frame is a steel skeleton construction, and bottom surface and front and back are welded with steel plate.
3. a kind of ship model test towing tank water-surface cleaning device according to claim 2, it is characterized in that: described elevating mechanism comprises connecting rod, the position adjustments plate, guide peg, guide rail pole, elevating lever, lower bearing housing, top bearing housing, lifting motor and lifting tooth roller box, main scraper plate top is provided with two connecting rods, the connecting rod upper end links to each other with the position adjustments plate, the position adjustments plate is provided with guide peg, guide peg comprises the body of rod and guide collar two parts, guide rail pole is fixed on the vehicle frame, have screw in the middle of the position adjustments plate, elevating lever is connected with the position adjustments plate by screw, and turn up and down in screw, the elevating lever two ends are provided with bearing housing, bearing housing is fixed on the vehicle frame by bearing support, elevating lever top is with lifter wheel, lifter wheel places in the lifting tooth roller box, and the lifting tooth roller box is furnished with screw thread to the elevating lever between the lower bearing housing, and lifting motor drives the elevating lever rotation by the lifting tooth roller box.
4. a kind of ship model test towing tank water-surface cleaning device according to claim 3, it is characterized in that: described inlet is the diffused funnel structure, and inlet is provided with triangular-notch weir.
5. a kind of ship model test towing tank water-surface cleaning device according to claim 4 is characterized in that: on the handle of water inlet device hook is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206199302U CN201962659U (en) | 2010-11-23 | 2010-11-23 | Water surface cleaning device for ship model towing tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206199302U CN201962659U (en) | 2010-11-23 | 2010-11-23 | Water surface cleaning device for ship model towing tank |
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| Publication Number | Publication Date |
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| CN201962659U true CN201962659U (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206199302U Expired - Lifetime CN201962659U (en) | 2010-11-23 | 2010-11-23 | Water surface cleaning device for ship model towing tank |
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| Country | Link |
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| CN (1) | CN201962659U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011384A (en) * | 2010-11-23 | 2011-04-13 | 哈尔滨工程大学 | Water surface cleaning device for ship model towing tank |
| CN109398628A (en) * | 2018-12-21 | 2019-03-01 | 肖希桐 | A kind of binary river surface cleaning ship |
-
2010
- 2010-11-23 CN CN2010206199302U patent/CN201962659U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011384A (en) * | 2010-11-23 | 2011-04-13 | 哈尔滨工程大学 | Water surface cleaning device for ship model towing tank |
| CN109398628A (en) * | 2018-12-21 | 2019-03-01 | 肖希桐 | A kind of binary river surface cleaning ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110907 Effective date of abandoning: 20120822 |