CN203762067U - Self-cleaning ornamental fish tank - Google Patents
Self-cleaning ornamental fish tank Download PDFInfo
- Publication number
- CN203762067U CN203762067U CN201420055044.XU CN201420055044U CN203762067U CN 203762067 U CN203762067 U CN 203762067U CN 201420055044 U CN201420055044 U CN 201420055044U CN 203762067 U CN203762067 U CN 203762067U
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- water
- self
- tank
- cylinder body
- fish jar
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- Withdrawn - After Issue
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Abstract
The utility model discloses a self-cleaning ornamental fish tank which comprises a water filtering tank and a tank body with a bottom plate. A filtering mechanism is arranged in the water filtering tank, and the bottom plate is provided with at least two water inlets. Water guide tubes are arranged on one sides, corresponding to the inner portion of the tank body, of the water inlets, the water guide tubes are arranged in the direction parallel to the bottom plate in a surrounding mode, all the water guide tubes are distributed in a surrounding mode so that output water can move in the clockwise or anticlockwise direction to enable the water in the tank body to form an eddy, the bottom plate is provided with an absorption opening located in the center of the eddy, and the bottom plate is provided with a draining groove located outside the cylinder body and communicated with the absorption opening. According to the self-cleaning ornamental fish tank, a plurality of water inlets are adopted so that the water can enter from the bottom face, the water forms the eddy at the bottom of the tank body, the absorption opening is formed in the eddy portion, fodder, fish poop and clutters can be discharged together, then the water is filtered and flows back to the tank body after circulation, the environment in the fish tank is improved effectively, water does not need to be changed for a long time but water quality, sanitation and hygiene in the tank can be kept, and health of fishes is facilitated.
Description
Technical field
The utility model relates to a kind of fish jar, relates in particular to a kind of self-cleaning and views and admires fish jar.
Background technology
Along with improving constantly of people's living standard, people more and more focus on quality of life.In the leisure, groups of people like growing flower at home and breed fish happy feelings, with the work of anxiety at ordinary times of releiving.At home, while breeding fish in office or hotel, be all to adopt self-cleaning to view and admire fish jar to breed fish conventionally, especially hotel or relatively large place, the self-cleaning pet fish cylinder body that need to use is long-pending also larger.At present view and admire fish jar for the self-cleaning of breeding fish, generally include a tank body of fish tank, oxygen increasing pump is housed in tank body of fish tank, ensure that self-cleaning views and admires the oxygen in fish jar, absorption self-cleaning is offered and views and admires the clean-up port of residue in fish jar (as feed, fish excrement etc.) in the side that also can view and admire fish jar at self-cleaning in addition.The self-cleaning of viewing and admiring of this class formation is viewed and admired fish jar, and what only just can be adsorbed from the residue in compare Jin region, clean-up port is comparatively clean, is not easy to be adsorbed from the residue in compare Yuan region, clean-up port, views and admires in fish jar thereby stay self-cleaning.Along with increasing of residue, self-cleaning is viewed and admired the slowly variation of water quality in fish jar, thereby making self-cleaning view and admire fish jar will clear up and change water once every one shorter period, and often change water one time, due to the difference of water quality, self-cleaning view and admire fish in fish jar all possible loss fall, cause damage to user.The specification of medium-and-large-sized fish jar is larger, and moisture storage capacity is larger, the waste of changing frequently water and bringing work burden and water resource to user.
Summary of the invention
For the deficiencies in the prior art, the technical problems to be solved in the utility model is to provide one can automatic fitration and effectively improve water quality, thereby can not change for a long time water and guarantee that the self-cleaning of raising healthy fish views and admires fish jar.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of self-cleaning is viewed and admired fish jar, the cylinder body that it comprises water filtering tank and has base plate, in described water filtering tank, be provided with filter mechanism, described base plate is provided with at least two water inlets, corresponding cylinder interior one side of described water inlet is provided with aqueduct, described aqueduct is clockwise or counterclockwise around arranging and making the water body in cylinder body form eddy current to make the water outlet direction of each aqueduct form around form setting along the direction of parallel described base plate, described base plate is provided with the adsorption orifice at the whirlpool center that is positioned at described eddy current, described base plate is provided with the rhone that is positioned at cylinder body outside and is communicated with described adsorption orifice.
View and admire the one of the technical scheme of fish jar improves as the utility model self-cleaning, described water filtering tank is located at cylinder body below and the base as the described cylinder body of support, described water inlet is connected with the water pump being located in water filtering tank by inlet channel, and the water sucking mouth of described water pump is positioned at described filter mechanism.
View and admire the one of the technical scheme of fish jar improves as the utility model self-cleaning, described water filtering tank is located at cylinder body top, described water inlet is communicated with by the set water leg in the downstream of inlet channel and filter mechanism, and described self-cleaning is viewed and admired fish jar and water pump is set is communicated with and comprises the upstream of the drainage channel of described rhone and described filter mechanism.
View and admire the one of the technical scheme of fish jar improves as the utility model self-cleaning, comprise that the drainage channel of described rhone also comprises the water level chamber of the vertical setting that is positioned at described cylinder body or cylinder body outside, described water level is provided with baffle plate in chamber, water level chamber is separated into two separate unrestrained tank and drain tanks by this baffle plate, unrestrained bottom of gullet is provided with water inlet and is communicated with rhone, described drain tank bottom be provided with delivery port and by pipe drainage to the filter mechanism in described water filtering tank, described drain tank top is provided with water proof sieve plate.
View and admire the one of the technical scheme of fish jar as the utility model self-cleaning and improve, the side of described cylinder body base plate forms arc surfaced to intermediate recess.
View and admire the one of the technical scheme of fish jar as the utility model self-cleaning and improve, in described cylinder body and between the unrestrained tank in described water level chamber, be provided with overflow pipe, the water inlet port of this overflow pipe is positioned at the water surface place of cylinder body.
View and admire the one of the technical scheme of fish jar as the utility model self-cleaning and improve, in described water level chamber, be also provided with the bactericidal lamp that is arranged in unrestrained tank.
View and admire the one of the technical scheme of fish jar as the utility model self-cleaning and improve, described filter mechanism comprises at least one filtering ponds, and water pump is located at the filtering ponds place in downstream, and the water sucking mouth of water pump is positioned at the water leg of these filtering ponds.
View and admire the one of the technical scheme of fish jar as the utility model self-cleaning and improve, described filtering ponds bottom surface is provided with sewage draining exit, and this sewage draining exit is provided with valve.
View and admire the one of the technical scheme of fish jar as the utility model self-cleaning and improve, each filtering ponds are stepped arranging successively, and the filtering ponds of upstream are provided with the sluicing flange with sieve aperture tooth limit of manufacturing cascade.
View and admire the one of the technical scheme of fish jar as the utility model self-cleaning and improve, described drainage channel is provided with buffering cabin, and described buffering bilge portion is provided with blow-off pipe, and described blow-off pipe is provided with switch valve.
View and admire the one of the technical scheme of fish jar as the utility model self-cleaning and improve, described water level inner cavity surface is also provided with biological filtering layer; Described cylinder body internal upper part is also equiped with the filter screen that is positioned at water surface upside or is dipped in water surface place.
The beneficial effects of the utility model are: self-cleaning is is wherein viewed and admired fish jar and adopted the mode of tank body of fish tank bottom surface water inlet that multiple water inlets are set, and near water body place, bottom surface, multiple aqueducts are set in cylinder base, water inlet water (flow) direction is forced to be made as planar rings flow path direction, thereby the middle position at circulation forms eddy current, thereby the sediments of bottom is gathered in the whirlpool center of eddy current under current promote, adsorption orifice is set as discharge outlet in this whirlpool center, when draining, the foreign material such as feed, fish excrement is discharged in the lump simultaneously.Self-cleaning view and admire fish jar arrange simultaneously filter mechanism to discharge water filter, after removing foreign material, circulating reflux is in cylinder body, form filtration cycle, effectively improve self-cleaning and view and admire the environment in fish jar, thereby can the long period need not change water, still keep self-cleaning to view and admire the water cleaning health in fish jar, guarantee the health of fish.
Brief description of the drawings
Fig. 1 is the structural representation that a kind of self-cleaning of the utility model is viewed and admired an embodiment of fish jar.
Fig. 2 is the planar structure schematic diagram that self-cleaning shown in Fig. 1 is viewed and admired fish jar.
Fig. 3 is the structural representation that a kind of self-cleaning of the utility model is viewed and admired another embodiment of fish jar.
Fig. 4 is the structural representation of the water filtering tank embodiment of staged filtering ponds of the present utility model.
Embodiment
Further illustrate embodiment of the present utility model below in conjunction with accompanying drawing.
The structural representation of viewing and admiring as shown in Figure 1 and Figure 2 an embodiment of fish jar for a kind of self-cleaning of the utility model, in figure, the cylinder body of fish jar is positioned at top, is positioned at below as the water filtering tank of base.This self-cleaning is viewed and admired the cylinder body 20 that fish jar comprises water filtering tank 10 and has base plate 21, and water filtering tank 10 is in the same size or close with the specification of cylinder body 10, reaches arranging effect attractive in appearance.In water filtering tank 10, being provided with filter mechanism 11 carries out circulating filtration to the water body in cylinder body and maintains water body sanitation and hygiene.Base plate 21 is provided with at least two water inlets 22, corresponding cylinder interior one side of water inlet 22 is provided with aqueduct 23, aqueduct 23 is clockwise or counterclockwise around arranging and making the water body in cylinder body 20 form eddy current to make the water outlet direction of each aqueduct 23 form around form setting along the direction of parallel base plate 21, the position of aqueduct 23 is near base plate 21, thereby the residual feed to backplate surface and fish excrement water stream impact cleaning totally and promotes it to whirlpool center.Also be provided with in addition the adsorption orifice 24 at the whirlpool center that is positioned at eddy current at base plate 21, aqueduct 23 arranges around adsorption orifice 24, and substantially make current driving force cover backplate surface, base plate 21 is provided with the rhone 26 that is positioned at cylinder body 20 outsides and is communicated with described adsorption orifice 24, water circulation flows out from adsorption orifice, takes away the foreign material such as residual feed, fish excrement simultaneously.
Self-cleaning of the present utility model is viewed and admired fish jar and is adopted the mode of tank body of fish tank bottom surface water inlet, in cylinder base, multiple water inlets 22 are set, and near water body place, bottom surface, multiple aqueducts 23 are set in cylinder base, water inlet water (flow) direction is forced to be made as planar rings flow path direction, thereby the middle position at circulation forms eddy current, thereby the sediments of bottom is gathered in the whirlpool center of eddy current under current promote, adsorption orifice 24 is set as discharge outlet in this whirlpool center, when draining, the foreign material such as feed, fish excrement is discharged in the lump simultaneously.Self-cleaning view and admire fish jar arrange simultaneously filter mechanism to discharge water filter, after removing foreign material, circulating reflux is in cylinder body, form filtration cycle, effectively improve self-cleaning and view and admire the environment in fish jar, thereby can the long period need not change water, still keep self-cleaning to view and admire the water cleaning health in fish jar, guarantee the health of fish.
Adsorption orifice 24 is arranged on the close middle region of cylinder body inner bottom surface conventionally, and can arrange as required one, and two, three, or other quantity.Be provided with and be arranged in the protective cover 25 that cylinder body 20 inner sides are water body at adsorption orifice 24 places, prevent that the fish of raising are involved in whirlpool and suck adsorption orifice 24 and injured, the biology of raising in protection cylinder body.
In order to be more conducive to the formation of gathering foreign material discharge and eddy current whirlpool in cylinder body, the base plate of cylinder body 21 can be made as to swirl shape sunk type member, member its lowest position is offered adsorption orifice 24 and is carried out draining and get rid of foreign material.
More preferably, water filtering tank 10 is located at cylinder body 20 belows and the base as the described cylinder body 20 of support, water inlet 22 is connected with the water pump 13 being located in water filtering tank 10 by inlet channel 12, the water sucking mouth of water pump 13 is positioned at filter mechanism 11, the water that cylinder body 20 is discharged through rhone is after filter mechanism 11 filters, smoking and pass through inlet channel 12 by water pump 13 fills with in cylinder body 20 from the aqueduct 23 of water inlet 22, thereby form internal water filtration cycle, the water body that ensures fish jar is peace and quiet, make fish jar can not need to change for a long time water, avoid frequently changing the painstaking and waste of water.
Wherein, the base plate 21 of cylinder body can double as the dividing plate between base and cylinder body, thereby can and be combined as a monoblock type fish jar as the water filtering tank 10 of base using cylinder body 20.
Wherein, described inlet channel 12 is provided with check valve 15, guarantees that water can only be entered in cylinder body 20 by inlet channel 12, and water in cylinder body 20 can not blow back into water pump 13 and overflow in base through inlet channel 12.In addition, water pump 13 is also communicated with extraneous water source, to carrying out supplementing of water source in cylinder body.
More preferably, with reference to shown in figure 3 being another embodiment that self-cleaning of the present utility model is viewed and admired fish jar, in this embodiment, water filtering tank 10 is located at the top of cylinder body 20, water inlet 22 is communicated with by the set water leg 14 in the downstream of inlet channel 12 and filter mechanism 11, naturally stays and under the Water Pressure of water leg 14, enters in cylinder body 20 from water inlet 22 aloft through the water filtering under Action of Gravity Field.In addition, self-cleaning is viewed and admired fish jar and water pump 13 is set is communicated with the upstream that comprises the drainage channel of rhone 26 and filter mechanism 11, that water is smoked the upstream that flows into filter mechanism 11 by discharging in drainage channel, then natural flow filters, realize internal water filtration cycle, the water body that ensures fish jar is peace and quiet, makes fish jar can not need to change for a long time water, avoids frequently changing the painstaking and waste of water.Like this, tank body of fish tank below just can be used for storing or other purposes by vacating space, avoids fish jar to occupy the too much interior space.
More preferably, fish jar arranges drainage channel, and drainage channel comprises rhone 26, and drainage channel also comprises the water level chamber 30 of the vertical setting that is positioned at cylinder body or cylinder body outside.Water level chamber 30 is located at the interior globality that can keep fish jar of cylinder body 20 and is also facilitated setting, the structure in water level chamber to connect and member protection, also better appearance.Water level chamber 30 can certainly be located at outside cylinder body 20 to convenient adjusting and installation.In water level chamber 30, be provided with the control panel of baffle plate 29 as height of water level in restriction cylinder body, this baffle plate 29 that is be that water level chamber 30 is separated into two separate unrestrained tanks 31 and drain tank 32 by water level baffle plate, the water that exceedes baffle plate 29 tip positions just overflows unrestrained tank 31, unrestrained tank 31 bottoms are provided with water inlet 33 and are communicated with rhone 26, thereby unrestrained tank 31 is communicated with cylinder interior, makes unrestrained tank 31 there is identical height of water level with cylinder body.Drain tank 32 bottoms be provided with delivery port 35 and by pipe drainage to the filter mechanism 11 in water filtering tank 10, realize water circulation.Drain tank 32 tops are provided with water proof sieve plate 36, after covering water proof sieve plate 36, the water of unrestrained tank 31 leaks in drain tank 32 through sieve aperture wherein, form configuration cascade, the cascade spilling out carries out fully contacting with air the dissolved oxygen process that realizes double type in dropping process, increase the oxygen content in water, in a link of water circulation, carry out " oxygenation ", saved the oxygen increasing pump of fish jar.
More preferably, cylinder body base plate 21 forms arc surfaced from side to intermediate recess, is similar to bowl-type, and the foreign material such as residual feed and fish excrement of being convenient to cylinder body 20 bottoms are more tending towards being gathered in lower recessed position, is convenient to discharge and maintains water body cleaning in cylinder.
More preferably, in cylinder body 20 and between the unrestrained tank 31 in water level chamber 30, be provided with overflow pipe 37, the water inlet port of this overflow pipe is positioned at the water surface place of cylinder body 20, and the foreign material or the greasy dirt etc. that conveniently float on the water surface overflow from the mouth of pipe of overflow pipe 37.The foreign material of the dirt foreign material that top is floating and bottom deposition can be discharged automatically, thereby fully improve the automatically cleaning ability of the discharge foreign material of fish jar, maintain better the water quality in cylinder body, extend exchange water cycle.Water level chamber 30 by baffle plate play intercept and limiting water level also becomes water proof chamber.The water that is arranged in tank body of fish tank 20 upper stratas can be drained into through overflow pipe 37 the unrestrained tank 31 in water level chamber 30, effectively by the upper water in cylinder body 20, especially the part water on horizontal plane is drained, make horizontal plane place also form and circulate, can, because not flowing and be formed with clc layer for a long time, not guarantee the good of water quality.
More preferably, be also provided with the bactericidal lamp 38 that is arranged in unrestrained tank 31 in water level chamber 30, water circulation is accepted the irradiation-sterilize of bactericidal lamp 38 through unrestrained 31 of tanks; the quality of increasing water quality; further extend exchange water cycle, protection clean water quality, the healthy growth of fish in protection fish jar.
More preferably, filter mechanism 11 comprises at least one filtering ponds 16, and water pump 13 is located at filtering ponds 16 places in downstream, and the water sucking mouth of water pump 13 is positioned at the water leg 14 of these filtering ponds, thereby by again pumping in cylinder body 20 through the water of filter mechanism 11 filterings, realize water circulation and water filtration.
More preferably, filtering ponds 16 bottom surfaces are provided with sewage draining exit 17, and this sewage draining exit 17 is provided with valve, and in filtering ponds, the left foreign material dirt of filtered water stream just can be discharged from sewage draining exit, avoid foreign material dirt to rest on the flowing water of filtering ponds contaminate subsequent, thereby extend exchange water cycle.
More preferably, with reference to the modified water filtering tank structure in embodiment illustrated in fig. 4, wherein each filtering ponds 16 stepped arranging successively, the filtering ponds 16 of upstream are higher than the filtering ponds in downstream, the waterside of crossing of filtering ponds 16 is provided with and manufactures the sluicing flange 18 with sieve aperture tooth limit of cascade, fully contacts and realizes further dissolved oxygen with air thereby utilize drop between adjacent filtering ponds 16 to produce cascade.
More preferably, drainage channel is provided with buffering cabin 27, buffering 27 bottoms, cabin are provided with blow-off pipe 28, blow-off pipe is provided with switch valve, buffering cabin arranges drain tank 26 terminal positions, sediment slightly heavy part can be formed sediment at this space product coagulation, certain interval of time is opened switch valve wherein just can discharge the sediment gathering, and improves the automatically cleaning ability of fish jar.
More preferably, described water level chamber 30 inner surfaces are also provided with biological filtering layer, and this biology filtering layer can be moss or other water plants, can play biofiltration effect to a certain extent to water body, further strengthen filter effect.
More preferably, cylinder body 20 internal upper parts are also equiped with the filter screen 40 that is positioned at water surface upside or is dipped in water surface place, can be chosen on filter screen 40 and plant some water ornamental plantss, can play landscaping effect, and due to the interval of filter screen 40, make more than fish can not swim over to filter screen.This filter screen 40 can be contained in following some positions of horizontal plane of cylinder body internal upper part, also can optionally be arranged on above water, can select flexibly according to actual needs.
Above disclosed is only preferred embodiment of the present utility model, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim, still belongs to the scope that the utility model is contained.
Claims (10)
1. a self-cleaning is viewed and admired fish jar, it is characterized in that: comprise water filtering tank and the cylinder body with base plate, in described water filtering tank, be provided with filter mechanism, described base plate is provided with at least two water inlets, corresponding cylinder interior one side of described water inlet is provided with aqueduct, described aqueduct is clockwise or counterclockwise around arranging and making the water body in cylinder body form eddy current to make the water outlet direction of each aqueduct form around form setting along the direction of parallel described base plate, described base plate is provided with the adsorption orifice at the whirlpool center that is positioned at described eddy current, described base plate is provided with the rhone that is positioned at cylinder body outside and is communicated with described adsorption orifice.
2. self-cleaning according to claim 1 is viewed and admired fish jar, it is characterized in that: described water filtering tank is located at cylinder body below and the base as the described cylinder body of support, described water inlet is connected with the water pump being located in water filtering tank by inlet channel, and the water sucking mouth of described water pump is positioned at described filter mechanism.
3. self-cleaning according to claim 1 is viewed and admired fish jar, it is characterized in that: described water filtering tank is located at cylinder body top, described water inlet is communicated with by the set water leg in the downstream of inlet channel and filter mechanism, and described self-cleaning is viewed and admired fish jar and water pump is set is communicated with and comprises the upstream of the drainage channel of described rhone and described filter mechanism.
4. self-cleaning according to claim 1 is viewed and admired fish jar, it is characterized in that: comprise that the drainage channel of described rhone also comprises the water level chamber of the vertical setting that is positioned at described cylinder body or cylinder body outside, described water level is provided with baffle plate in chamber, water level chamber is separated into two separate unrestrained tank and drain tanks by this baffle plate, unrestrained bottom of gullet is provided with water inlet and is communicated with rhone, described drain tank bottom be provided with delivery port and by pipe drainage to the filter mechanism in described water filtering tank, described drain tank top is provided with water proof sieve plate.
5. self-cleaning according to claim 1 is viewed and admired fish jar, it is characterized in that: the side of the base plate of described cylinder body forms arc surfaced to intermediate recess.
6. self-cleaning according to claim 4 is viewed and admired fish jar, it is characterized in that: in described cylinder body and between the unrestrained tank in described water level chamber, be provided with overflow pipe, the water inlet port of this overflow pipe is positioned at the water surface place of cylinder body.
7. self-cleaning according to claim 4 is viewed and admired fish jar, it is characterized in that: in described water level chamber, be also provided with the bactericidal lamp that is arranged in unrestrained tank.
8. self-cleaning according to claim 2 is viewed and admired fish jar, it is characterized in that: described filter mechanism comprises at least one filtering ponds, and water pump is located at the filtering ponds place in downstream, and the water sucking mouth of water pump is positioned at the water leg of these filtering ponds.
9. self-cleaning according to claim 8 is viewed and admired fish jar, it is characterized in that: each filtering ponds are stepped arranging successively, and the waterside of crossing of filtering ponds is provided with the sluicing flange with sieve aperture tooth limit of manufacturing cascade.
10. self-cleaning according to claim 1 is viewed and admired fish jar, it is characterized in that: described drainage channel is provided with buffering cabin, and described buffering bilge portion is provided with blow-off pipe, and described blow-off pipe is provided with switch valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201420055044.XU CN203762067U (en) | 2014-01-28 | 2014-01-28 | Self-cleaning ornamental fish tank |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420055044.XU CN203762067U (en) | 2014-01-28 | 2014-01-28 | Self-cleaning ornamental fish tank |
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Publication Number | Publication Date |
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CN203762067U true CN203762067U (en) | 2014-08-13 |
Family
ID=51279334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201420055044.XU Withdrawn - After Issue CN203762067U (en) | 2014-01-28 | 2014-01-28 | Self-cleaning ornamental fish tank |
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CN (1) | CN203762067U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103749372A (en) * | 2014-01-28 | 2014-04-30 | 刘杰明 | Self-cleaning type ornamental fish tank |
CN105941293A (en) * | 2016-07-14 | 2016-09-21 | 钟建平 | Aquarium |
CN107711665A (en) * | 2017-10-13 | 2018-02-23 | 浙江庆渔堂农业科技有限公司 | A kind of culturing pool |
-
2014
- 2014-01-28 CN CN201420055044.XU patent/CN203762067U/en not_active Withdrawn - After Issue
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103749372A (en) * | 2014-01-28 | 2014-04-30 | 刘杰明 | Self-cleaning type ornamental fish tank |
CN103749372B (en) * | 2014-01-28 | 2015-10-14 | 刘杰明 | A kind of self-cleaning views and admires fish jar |
CN105941293A (en) * | 2016-07-14 | 2016-09-21 | 钟建平 | Aquarium |
CN107711665A (en) * | 2017-10-13 | 2018-02-23 | 浙江庆渔堂农业科技有限公司 | A kind of culturing pool |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
AV01 | Patent right actively abandoned |
Granted publication date: 20140813 Effective date of abandoning: 20151014 |
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C25 | Abandonment of patent right or utility model to avoid double patenting |