CN207960962U - A kind of agriculture pumping plant that floatability uses - Google Patents
A kind of agriculture pumping plant that floatability uses Download PDFInfo
- Publication number
- CN207960962U CN207960962U CN201721592658.1U CN201721592658U CN207960962U CN 207960962 U CN207960962 U CN 207960962U CN 201721592658 U CN201721592658 U CN 201721592658U CN 207960962 U CN207960962 U CN 207960962U
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- CN
- China
- Prior art keywords
- pump
- water
- floatability
- agriculture
- solar energy
- 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.)
- Expired - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The utility model provides a kind of agriculture pumping plant that floatability uses, including buoyant hulls, clump weight and solar energy power generating group;There are one pump motors for the top side fixed installation of the engineering for pump housing;The side of the draw ring is fixedly installed a traction rope.The setting of solar energy power generating group, be conducive to the convenience used, solar energy power generating group, which can absorb sunlight and send out electricity, during use is transported to water supply pump motor use in accumulator, solar energy power generating group is also respectively facing six direction, in this way no matter buoyant hulls can make solar energy power generating group receive sunlight towards what direction, so there is no need to use cable to power, it is more convenient to use, and solar energy power generating group is fittingly disposed at the top of pump motor and pump chamber, a part of sunlight can be blocked in this way, avoid sunlight direct irradiation on pump motor and pump chamber, reduce the calorific value of water pump, improve the efficiency of drawing water of water pump.
Description
Technical field
The agriculture pumping plant that the utility model belongs to agricultural machinery technological field more particularly to a kind of floatability uses.
Background technology
Traditional water pump is generally divided into two kinds, and self prime pump and immersible pump, self prime pump are generally placed at land,
So needing in piping connection to water, the pressure loss is larger, and pipe water hole is put into water-bed easy blocking;Immersible pump needs to pacify
It puts in water, when the bank for immersible pump being placed on pond, the water on bank will be lower than the water inlet of water pump after a long time, and water pump holds
Easy no-load running, that just must again move water pump down, this just brings inconvenience to the person of drawing water, he will constantly keep an eye on bank
When water is less than the water outlet of water pump, also to go to move when water is less than the water outlet of water pump every time, increase work
It measures, when especially draining a pond, and if water pump is placed directly in the bottom, water pump is easy by water-bed mud etc.
Sundries blocks.
Also occur some floating water pumps now, such as application No. is 201520167174.7 patent, discloses one kind
Water pump is floated, electro-mechanical arts are belonged to, the floating water pump includes mainly filter bowl, water pump body, water outlet, air bag, holder, water
Position probe, pressure sensor, air bag section, bladder joint, air inflation nozzle, is gaged somebody at cable;The top of the water pump body is arranged
There are water outlet, water outlet to be provided with the pressure sensor being connect with cable, water pump body lower part is provided with filter bowl, water pump sheet
It is provided with air bag in the middle part of body, water pump body is connected with holder, and pedestal lower end exit is provided with the water level of cable connection
Probe, air bag are made of air bag section, air inflation nozzle are provided on air bag section, air inflation nozzle, which is internally provided with, gags somebody.The utility model is adopted
It with water level sensor, prevents water pump from being blocked by mud, using pressure sensor, prevents water pump no-load running, air bag from can dismantle,
Widened the use scope of the utility model, at the same the utility model also have the characteristics that it is easy to operate, simple in structure.
For example application No. is 201620579968.9 patents again, disclose a kind of floating water pump, in its buoyancy shell
There is water-stop sheet that the inner cavity of buoyancy shell is divided into buoyancy cavity and ponding chamber, the upper end of aqueduct passes through surface, the lower end of buoyancy shell to wear
Enter ponding chamber after crossing water-stop sheet;The upper end of water pump shell, which is fixed on water-stop sheet, seals together with water-stop sheet buoyancy cavity, middle part
Surface has water outlet to be communicated with ponding chamber, the inlet opening of bottom and the inlet opening of buoyancy shell bottom are mutually communicated;It is solid on water pump shell
Surely there is pump shaft, water pumping piece is fixed on pump shaft;Motor is fixed with by fixation on the upper surface of water pump shell.Floating
The compact-sized of formula water pump, is applicable in tailored appearance, is swum on the water surface when can draw water, is moved easily and draws water and draining,
Water-bed silt does not enter in water pump when drawing water, and not against drawing water, ship can be with the reduction of water level and under automatic as carrier
Drop;It is suitable for clearing up the Bilge draining-off sewage that road catchments with the low-lying draining catchmented and blocking.
It is found based on above-mentioned retrieval, two patents are being used in combination with most floating water pumps in the prior art
When have the following problems:Existing floating water pump needs to be driven using motor more, this is just needed using external cable
It is powered, and water pump can be moved constantly in flotation process, thus needs to prepare longer cable come for using, if
It is driven using diesel engine, can be difficult to float because of diesel engine heavier-weight, water pump body when in use also can be direct
It is exposed to the sun in the sun, in addition water pump self-heating can influence pumping for water pump efficiency, and the pump mouth of water pump is when close to water-bed
Some silts can be drawn upwardly out, cause to block inside water pump.
Then, in view of this, being studied improvement for existing structure and missing, a kind of agriculture that floatability uses is provided
Industry pumping plant, to achieve the purpose that with more more practical value.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of agriculture pumping plant that floatability uses, with solution
Certainly existing floating water pump needs to be driven using motor more, this just needs to be powered using external cable, and
Water pump can be moved constantly in flotation process, thus need to prepare longer cable come for using, if using diesel engine
It is driven, can be difficult to float because of diesel engine heavier-weight, water pump body when in use also can be directly sudden and violent in the sun
It shines, in addition water pump self-heating can influence pumping for water pump efficiency, and the pump mouth of water pump can be by some mud when close to water-bed
Sand is drawn upwardly out, the problem of causing to block inside water pump.
The purpose and effect for the agriculture pumping plant that the utility model floatability uses, are reached by technological means in detail below
At:
A kind of agriculture pumping plant that floatability uses, including buoyant hulls, engineering for pump housing, clump weight fixed frame, counterweight
Block, water suction filter bowl, suction hose, pump chamber, accumulator, outlet pipe, solar energy power generating group, photovoltaic panel fixed frame, water pump
Motor, side stabilization box, stabilization box fixed frame, draw ring, traction rope and sealed rubber ring;The bottom inside of the buoyant hulls passes through spiral shell
There are one engineering for pump housing for bolt fixed installation;There are one pump motors for the top side fixed installation of the engineering for pump housing;The water
There are one pump chambers for the top other side fixed installation of pump frame;There are one electric power storages for the inside fixed setting of the buoyant hulls
Pond;The inside of the buoyant hulls is also bolted installation, and there are one photovoltaic panel fixed frames;The photovoltaic panel fixed frame
Top outer, which is bolted, is equipped with totally six solar energy power generating groups;Lead at the top delivery port of the pump chamber
It crosses and has snapped connection an outlet pipe;The side water inlet of the pump chamber has been connected by a snap a suction hose;Institute
The bottom for stating suction hose passes through the bottom shell of buoyant hulls and extends downwardly;There are one the bottom of the suction hose is fixedly mounted
Absorb water filter bowl;The bottom of the buoyant hulls is also bolted installation, and there are one clump weight fixed frames;The clump weight is solid
The bottom for determining frame is bolted and is symmetrically installed with totally four clump weights;The both sides of the buoyant hulls are solid by stabilization box
Determining frame fixed installation, there are one side stabilization boxs;There are one draw rings for the slave top side fixed setting of the buoyant hulls;The drawing
The side of ring is fixedly installed a traction rope.
Further, the photovoltaic panel fixed frame is a round table-like skeleton structure, and photovoltaic panel fixed frame is outer
Side passes through the inclined connecting rod support connection of the total six roots of sensation.
Further, the solar energy power generating group is mounted by means of bolts on the outside of photovoltaic panel fixed frame, and
These solar energy power generating groups are respectively facing six direction.
Further, the side stabilization box is hollow vacuum shape structure, is to raise up on the outside of buoyant hulls
Shape structure.
Further, there are one closed circular bulkheads for the bottom fixed setting of the water suction filter bowl.
Further, there are one sealed rubber rings for the suction hose and the fixed setting of the scarf of buoyant hulls.
Further, the solar energy power generating group is preferably installed to the top of pump motor and pump chamber.
Further, there are one carry externally threaded convex structure, the bottom of clump weight for the top setting of the clump weight
It is also equipped with corresponding internal thread groove on the inside of portion.
Further, the lower plane of the clump weight is lower 15cm than the lower plane for the filter bowl that absorbs water.
Compared with prior art, the utility model has the advantages that:
The setting of solar energy power generating group is conducive to the convenience used, solar energy power generating group during use
Sunlight can be absorbed and send out electricity and be transported in accumulator water supply pump motor and used, solar energy power generating group is also respectively facing
Six direction, in this way no matter buoyant hulls can make solar energy power generating group receive sunlight towards what direction, thus
It need not be powered using cable, it is more convenient to use, and solar energy power generating group is fittingly disposed at pump motor and water
The top of pump housing can block a part of sunlight in this way, avoid sunlight direct irradiation on pump motor and pump chamber, drop
The calorific value of low water pump improves the efficiency of drawing water of water pump.
The setting of water suction filter bowl is conducive to avoid to block inside water pump, and the lower plane of clump weight is lower more flat than water suction filter bowl
The low 15cm in face, thus even if the water surface constantly reduce so that clump weight is touched the bottom when water suction filter bowl will not touch the bottom, can
Water suction filter bowl is avoided to cause to wear, the bottom for the filter bowl that absorbs water is additionally provided with a plectane, and water when pump sump can in this way passed through
Be drawn inwardly on the outside of water suction filter bowl, without directly sucking bottom-up, can reduce so water-bed silt directly to
On be drawn into water pump, avoid the too fast blocking of water pump.
Description of the drawings
Fig. 1 is the main structure diagram of the utility model.
Fig. 2 is the main cross section structure diagram of the utility model.
Fig. 3 is the buoyant hulls overlooking structure diagram of the utility model.
Fig. 4 is Fig. 2 partial enlargement structural representations of the utility model.
Fig. 5 is the photovoltaic panel fixed rack structure schematic diagram of the utility model.
Fig. 6 is the solar energy power generating group overlooking structure diagram of the utility model.
Fig. 7 is the water suction filter bowl overlooking structure diagram of the utility model.
Fig. 8 is the clump weight fixed frame present invention looks up structural representation of the utility model.
Fig. 9 is the clump weight schematic cross-sectional view of the utility model.
In figure:Buoyant hulls -1, engineering for pump housing -2, clump weight fixed frame -3, clump weight -4, water suction filter bowl -5, suction hose -
6, pump chamber -7, accumulator -8, outlet pipe -9, solar energy power generating group -10, photovoltaic panel fixed frame -11, pump motor -
12, side stabilization box -13, stabilization box fixed frame -14, draw ring -15, traction rope -16;Sealed rubber ring -17.
Specific implementation mode
The utility model is described further below in conjunction with attached drawing:
Embodiment:
As shown in attached drawing 1 to attached drawing 9:
The utility model provides a kind of agriculture pumping plant that floatability uses, including buoyant hulls 1, engineering for pump housing 2, matches
Pouring weight fixed frame 3, clump weight 4, water suction filter bowl 5, suction hose 6, pump chamber 7, accumulator 8, outlet pipe 9, photovoltaic hair
Electricity group 10, photovoltaic panel fixed frame 11, pump motor 12, side stabilization box 13, stabilization box fixed frame 14, draw ring 15,16 and of traction rope
Sealed rubber ring 17;
Probably being bolted installation referring to the bottom inside of Fig. 2 buoyant hulls 1, there are one engineering for pump housing 2;Water pump bottom
There are one pump motors 12 for the top side fixed installation of seat 2;There are one water pumps for the top other side fixed installation of engineering for pump housing 2
Cavity 7;There are one accumulators 8 for the inside fixed setting of buoyant hulls 1;The inside of buoyant hulls 1 is also bolted installation
There are one photovoltaic panel fixed frames 11;The top outer of photovoltaic panel fixed frame 11, which is bolted, is equipped with totally six solar energies
Lie prostrate generating set 10;
An outlet pipe 9 has been connected by a snap at top delivery port probably referring to Fig. 2 pump chambers 7;Pump chamber 7
Side water inlet be connected by a snap a suction hose 6;The bottom of suction hose 6 passes through the bottom shell of buoyant hulls 1
And it extends downwardly;There are one the filter bowls 5 that absorbs water for the bottom fixed installation of suction hose 6;The bottom of buoyant hulls 1 is also bolted
There are one clump weight fixed frames 3 for installation;The bottom of clump weight fixed frame 3, which is bolted, is symmetrically installed with totally four clump weights
4;
Probably referring to the both sides of Fig. 3 buoyant hulls 1, by the fixed installation of stabilization box fixed frame 14, there are one side stabilization boxs
13;There are one draw rings 15 for the slave top side fixed setting of buoyant hulls 1;The side of draw ring 15 is fixedly installed a traction rope
16。
Wherein, the photovoltaic panel fixed frame 11 is a round table-like skeleton structure, and photovoltaic panel fixed frame 11 is outer
Solar energy power generating group 10 can be separately fixed at these skeletons by side in this way by the inclined connecting rod support connection of the total six roots of sensation
Outside, it is more convenient when fixed.
Wherein, the solar energy power generating group 10 is mounted by means of bolts on the outside of photovoltaic panel fixed frame 11, and
These solar energy power generating groups 10 are respectively facing six direction, and solar energy power generating group 10 can absorb the sun during use
Light simultaneously sends out electricity and is transported in accumulator 8 water supply pump motor 12 and use, and solar energy power generating group 10 is also respectively facing six
Direction, in this way no matter buoyant hulls 1 can make solar energy power generating group 10 receive sunlight towards what direction, thus not
It needs to power using cable, it is more convenient to use.
Wherein, the side stabilization box 13 is hollow vacuum shape structure, and the outside of buoyant hulls 1 is the shape that raises up
Structure can effectively avoid water and enters from the outside of buoyant hulls 1 in this way, and side stabilization box 13 can effectively increase buoyant hulls 1
Buoyancy.
Wherein, there are one closed circular bulkheads, the bottoms for the filter bowl 5 that absorbs water for the bottom fixed setting of the water suction filter bowl 5
Be additionally provided with a plectane, the outside that water when pump sump passes through water suction filter bowl 5 can in this way be drawn inwardly to, without directly from
Bottom is sucked up, and can be reduced water-bed silt in this way and is drawn into water pump directly up, avoid the too fast blocking of water pump.
Wherein, there are one sealed rubber rings 17 for the suction hose 6 and the fixed setting of the scarf of buoyant hulls 1.
Wherein, the solar energy power generating group 10 is preferably installed to the top of pump motor 12 and pump chamber 7, in this way
A part of sunlight can be blocked, avoids sunlight direct irradiation on pump motor 12 and pump chamber 7, reduces the fever of water pump
Amount, improves the efficiency of drawing water of water pump.
Wherein, there are one carry externally threaded convex structure, the bottom of clump weight 4 for the top setting of the clump weight 4
Inside is also equipped with corresponding internal thread groove, and the top bump of clump weight 4, which is first embedded into clump weight, when installing clump weight 4 consolidates
Determine the hole of 3 bottom of frame and stretch out upwards, then 4 top of clump weight is tightened using bolt and is fixed, and when in use may be used
With according to wind-force when using come the appropriate quantity for increasing clump weight 4, directly by the screw thread at 4 top of the clump weight of lower section when increase
Protrusion is rotatably mounted in the thread groove of 4 bottom of clump weight of top, and buoyant hulls 1 can be made more steady in floating
It is fixed.
Wherein, the lower plane of the clump weight 4 is lower 15cm than the lower plane for the filter bowl 5 that absorbs water, so even if the water surface constantly drops
Low water suction filter bowl 5 when clump weight 4 being made to touch the bottom will not touch the bottom, can avoid water suction filter bowl 5 and cause to wear.
The specifically used mode of the present embodiment and effect:
In the utility model, when using the present apparatus, installation first is bolted in each section component, clump weight is installed
The top bump of clump weight 4 is first embedded into the hole of 3 bottom of clump weight fixed frame when 4 and is stretched out upwards, then uses bolt will
Tighten number that is fixed, and can suitably increasing clump weight 4 according to wind-force when using when in use in 4 top of clump weight
The screw thread of amount, 4 bottom of clump weight that the thread protrusion at 4 top of the clump weight of lower section is directly rotatably mounted to top when increase is recessed
In slot, buoyant hulls 1 can be made more to stablize in floating, when use into the water by the present apparatus, then by traction rope 16
The other side be connected with the weight on bank, then pump motor 12 is opened using external controller, 12 meeting of pump motor
It is powered by accumulator 8 to drive pump chamber 7 to run, water can be passed through filter bowl 5 and the sucking water pump of suction hose 6 of absorbing water in this way
In cavity 7, then exported outward by outlet pipe 9, because the lower plane of clump weight 4 is lower 15cm than the lower plane for the filter bowl 5 that absorbs water,
So even if the water surface constantly reduce so that clump weight 4 is touched the bottom when water suction filter bowl 5 will not touch the bottom, can avoid water suction
Filter bowl 5 causes to wear, and the bottom of water suction filter bowl 5 is additionally provided with a plectane, and water when pump sump can be made to pass through water suction filter in this way
The outside of cover 5 is drawn inwardly to, and without directly sucking bottom-up, can be reduced water-bed silt in this way and be sucked directly up
Into water pump, the too fast blocking of water pump is avoided, solar energy power generating group 10 can absorb sunlight and send out electricity during use
Water supply pump motor 12 is transported in accumulator 8 to use, solar energy power generating group 10 is also respectively facing six direction, in this way regardless of
Buoyant hulls 1 can make solar energy power generating group 10 receive sunlight towards what direction, and so there is no need to use cable
It powers, it is more convenient to use, and solar energy power generating group 10 is fittingly disposed at the top of pump motor 12 and pump chamber 7
A part of sunlight can be blocked in this way in portion, avoid sunlight direct irradiation on pump motor 12 and pump chamber 7, reduce water pump
Calorific value, improve the efficiency of drawing water of water pump, solar energy power generating group 10 includes:Solar panel, solar controller,
Accumulator 8 and inverter, solar panel is converted to after being absorbed luminous energy in power storage to accumulator 8, by too
The electric energy is carried out output auxiliary with inverter effect and energized by positive energy controller.
The opening in technical solutions of the utility model using technical solution described in the utility model or those skilled in the art
It gives, designs similar technical solution, and reach above-mentioned technique effect, be to fall into the scope of protection of the utility model.
Claims (9)
1. the agriculture pumping plant that a kind of floatability uses, it is characterised in that:The agriculture pumping plant that the floatability uses includes
Buoyant hulls, engineering for pump housing, clump weight fixed frame, clump weight, water suction filter bowl, suction hose, pump chamber, accumulator, outlet pipe,
Solar energy power generating group, photovoltaic panel fixed frame, pump motor, side stabilization box, stabilization box fixed frame, draw ring, traction rope and close
Sealing ring;The bottom inside of the buoyant hulls is bolted installation, and there are one engineering for pump housing;The top of the engineering for pump housing
There are one pump motors for the fixed installation of portion side;There are one pump chambers for the top other side fixed installation of the engineering for pump housing;
There are one accumulators for the inside fixed setting of the buoyant hulls;The inside of the buoyant hulls, which is also bolted, to be equipped with
One photovoltaic panel fixed frame;The top outer of the photovoltaic panel fixed frame, which is bolted, is equipped with totally six photovoltaics
Generating set;An outlet pipe has been connected by a snap at the top delivery port of the pump chamber;The side of the pump chamber
Water inlet has been connected by a snap a suction hose;The bottom of the suction hose passes through the bottom shell of buoyant hulls and downward
It stretches out;There are one the filter bowls that absorbs water for the bottom fixed installation of the suction hose;The bottom of the buoyant hulls is also bolted
There are one clump weight fixed frames for installation;The bottom of the clump weight fixed frame, which is bolted, is symmetrically installed with totally four counterweights
Block;By the fixed installation of stabilization box fixed frame, there are one side stabilization boxs for the both sides of the buoyant hulls;The buoyant hulls
From top side fixed setting, there are one draw rings;The side of the draw ring is fixedly installed a traction rope.
2. the agriculture pumping plant that floatability as described in claim 1 uses, it is characterised in that:The photovoltaic panel fixed frame is one
A round table-like skeleton structure, and the outside of photovoltaic panel fixed frame passes through the inclined connecting rod support connection of the total six roots of sensation.
3. the agriculture pumping plant that floatability as claimed in claim 1 or 2 uses, it is characterised in that:The photovoltaic hair
The electric group of outside for being mounted by means of bolts on photovoltaic panel fixed frame, and these solar energy power generating groups are respectively facing six sides
To.
4. the agriculture pumping plant that floatability as described in claim 1 uses, it is characterised in that:The side stabilization box is hollow
Vacuum shape structure, be the shape structure that raises up on the outside of buoyant hulls.
5. the agriculture pumping plant that floatability as described in claim 1 uses, it is characterised in that:The bottom of the water suction filter bowl is solid
There are one closed circular bulkheads for fixed setting.
6. the agriculture pumping plant that floatability as described in claim 1 uses, it is characterised in that:The suction hose and buoyant hulls
Scarf fixed setting there are one sealed rubber ring.
7. the agriculture pumping plant that floatability as described in claim 1 uses, it is characterised in that:The solar energy power generating group
It is preferably installed to the top of pump motor and pump chamber.
8. the agriculture pumping plant that floatability as described in claim 1 uses, it is characterised in that:The top of the clump weight is arranged
There are one externally threaded convex structure is carried, the bottom inside of clump weight is also equipped with corresponding internal thread groove.
9. the agriculture pumping plant that the floatability as described in claim 1 or 5 or 8 uses, it is characterised in that:Under the clump weight
Plane is lower 15cm than the lower plane for the filter bowl that absorbs water.
Priority Applications (1)
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CN201721592658.1U CN207960962U (en) | 2017-11-24 | 2017-11-24 | A kind of agriculture pumping plant that floatability uses |
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CN201721592658.1U CN207960962U (en) | 2017-11-24 | 2017-11-24 | A kind of agriculture pumping plant that floatability uses |
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ID=63724677
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102018062B1 (en) * | 2019-04-02 | 2019-10-22 | 주식회사 무빙보트 | Water leisure boat having means for improving water quality |
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2017
- 2017-11-24 CN CN201721592658.1U patent/CN207960962U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102018062B1 (en) * | 2019-04-02 | 2019-10-22 | 주식회사 무빙보트 | Water leisure boat having means for improving water quality |
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CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20181012 Termination date: 20181124 |