CN209073250U - A kind of biochemical filtration aquarium structure - Google Patents
A kind of biochemical filtration aquarium structure Download PDFInfo
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- CN209073250U CN209073250U CN201821557351.2U CN201821557351U CN209073250U CN 209073250 U CN209073250 U CN 209073250U CN 201821557351 U CN201821557351 U CN 201821557351U CN 209073250 U CN209073250 U CN 209073250U
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Abstract
The utility model relates to a kind of aquariums, specially a kind of completely new, the new type water cluster box structure of water-saving and environmental protection, including transparent cylinder body and bottom outer shell arranged at the bottom, transparent partition is provided among transparent cylinder body and bottom outer shell, transparent cylinder base both ends are respectively arranged with the first check valve, 4th check valve, first check valve upper end is connect with the mouth of a river is rotated out of, bottom outer shell is internally provided with classified filtering slot, water pump, classified filtering slot, partition is provided among water pump, water pump is arranged below the first check valve and is connect by admitting pipe joint with the first check valve, classified filtering slot includes multiple lautertuns, air lift type floating ball is provided in outermost lautertuns, air lift type floating ball upper end is connect with the 4th check valve, third check valve is provided on classified filtering slot inner wall, second one-way valve is provided on the outer shell side wall of bottom, institute It states second one-way valve to connect with third check valve, it is very convenient that this aquarium structure is simple, water is changed in filtering.
Description
Technical field
The utility model relates to a kind of aquarium, specially it is a kind of it is completely new, especially suitable for small-sized aquarium, water-saving ring
The new type water cluster box structure of guarantor.
Background technique
Requirement with people to quality of life is continuously improved, aquarium using more and more, more and more extensively.It is in
In front yard, business application, aquarium not only increases the enjoyment of life and work, moreover it is possible to beautify living and working environment, pleasant body
The heart.But existing aquarium is especially small-sized aquarium and needs to be replaced the water in an aquarium after a period of time, very numb
It is tired, during replacing aquarium water, the fish in aquarium can not only be damaged, be also easy to smash aquarium.
A kind of aquarium filter and the filtering fish jar including aquarium filter are disclosed in chinese patent library
(CN201620671655.6), wherein aquarium filter includes the cylinder body for being divided into multiple filtering areas, cylinder body be equipped with
The water inlet and water outlet of external communication；The top of cylinder body is equipped with the area Di Lv, and the entrance in the area Di Lv is connected with water inlet；The area Di Lv
Outlet be connected with water filtration area, the outlet in water filtration area is connected with water outlet.The utility model being capable of high-efficiency omnibearing
It filters and improves water quality.
A kind of inherent filtration fish jar (CN201520790928.4), including fish tank body and filtering are disclosed in chinese patent library
System, the filtration system include filter device, and the both ends of the filter device offer inlet and outlet, the water inlet
Mouth is connected by water inlet pipe with fish tank body, and the water outlet is connected by outlet pipe with fish tank body；The water inlet pipe
It is equipped with booster pump.The utility model, can be under the action of booster pump by the way that filtration system is arranged in fish jar, will be in fish jar
Water be pumped into filter device and be filtered by water inlet pipe, and filtered water is discharged into fish jar by outlet pipe, no
The water in fish jar is required manual replacement, saves manpower and material resources, and saved and used water.
No matter present aquarium is using upper filter structure or bottom filter structure, and all water is changed in presence and replacement filtering material is troublesome
Problem.
Utility model content
In view of the above problems, the object of the present invention is to provide a kind of biochemical filtration aquarium structures, using light side
Just drawer type Rose Box, which solves to change water and replace troublesome this of filtering material, perplexs the hang-up of numerous aquarists, mentions
High user experience.
To achieve the goals above, the utility model uses following technical scheme
A kind of biochemical filtration aquarium structure, including transparent cylinder body and bottom outer shell arranged at the bottom, the transparent cylinder
Transparent partition is provided among body and bottom outer shell, the transparent cylinder base both ends are respectively arranged with the first check valve, the 4th
Check valve, first check valve upper end are connect with the mouth of a river is rotated out of, and the bottom outer shell is internally provided with classified filtering slot, water
It pumps, partition is provided among the classified filtering slot, water pump, the water pump is arranged below the first check valve and passes through water inlet pipe
Connector is connect with the first check valve, and the classified filtering slot includes multiple lautertuns, is provided with gaslift in outermost lautertuns
Formula floating ball, air lift type floating ball upper end are connect with the 4th check valve, and it is unidirectional to be provided with third on the classified filtering slot inner wall
Valve is provided with second one-way valve on the bottom outer shell side wall, and the second one-way valve is connect with third check valve.
Preferably, the mouth of a river that rotates out of is detachably connected with the first check valve, and the mouth of a river that rotates out of is inverted loudspeaker
Mouth structure.
Preferably, the second one-way valve and third check valve are detachably connectable, air lift type floating ball upper end and the 4th
Check valve is detachably connectable, and the classified filtering slot is drawer structure and plugs connection with bottom outer shell.
Preferably, it is provided with internal fastening type knob on the classified filtering slot outside, the knob is in classified filtering slot
On one horizontal plane.
Preferably, the classified filtering slot includes three lautertuns, is followed successively by impurity dislodger, biochemical filtration slot and physics
Lautertuns, is provided with air lift type floating ball in the impurity dislodger, the impurity dislodger be connected to biochemical filtration slot top and
Biochemical filtration slot through hole is provided with the first deflector, and the biochemical filtration slot is connected to physical filtering slot top and physical filtering
Slot through hole is provided with the second deflector.
Preferably, the impurity deposition trench bottom is provided with multiple upward partitions, and impurity dislodger is divided by partition
Multiple sub- precipitation tanks.
Preferably, air lift type floating ball bottom is provided with support rod, and the support rod and impurity deposit trench bottom bottom
It is flexibly connected, the support rod is higher than partition.
Preferably, ceramic biochemistry ball is filled in the biochemical filtration slot, cultivating on the ceramics biochemistry ball has nitrification carefully
Bacterium；Active carbon is filled in the physical filtering slot.
Preferably, it is provided with timer on the outside of the bottom outer shell, the timer is connect with water pump, is periodically carried out to water
Filtering.
Preferably, controller is provided on the outside of the bottom outer shell and transparent cylinder interior is provided with water turbidity sensing
Device, the water turbidity sensor are connect with controller, and the controller is connect with water pump, the automatic mistake when detecting water muddiness
Filter.
The utility model has the beneficial effects that this aquarium structure is simple, it is beautiful and generous；The key components and parts that this structure uses
Finished product fraction defective can be reduced, labor intensity of workers is reduced and improves production efficiency, is saved using injection molding standardized production
About production cost；Since upper cylinder is that aquarium watches face, this structure does not have the structure of depth of water positioning pipe etc, for four sides
Ornamental type aquarium provides Feasibility Solution；Existing small-sized aquarium is frequently and difficult because changing water, gives vast consumption
Person brings very big puzzlement, and the small-sized aquarium of this structure is used to solve the problems, such as to change water and replacement filter material, improves filtering
Effect, water quality can not change water for a long time and water quality is limpid, increase the desire that people buy small-sized aquarium.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the schematic perspective view of the utility model；
Fig. 2 is the A-A structural schematic diagram of the utility model；
Fig. 3 is the C-C structural schematic diagram of the utility model；
Fig. 4 is the structural schematic diagram of bottom outer shell in the utility model；
Fig. 5 is the present invention looks up structural representation of the utility model.
In figure, the transparent cylinder body of 1-, 2-3600Rotate out of the mouth of a river, the first check valve of 3-, 4- admitting pipe joint, 5- water pump, 6-
Second one-way valve, 7- third check valve, 8- air lift type floating ball, the first deflector of 9-, the second deflector of 10-, 11- the 4th are unidirectional
Valve, the bottom 12- outer shell, 13- classified filtering slot.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
As Figure 1-Figure 5, the biochemical filtration aquarium structure, including transparent cylinder body 1 and bottom arranged at the bottom
Outer shell 12, transparent cylinder body 1 are made of high transparent glass, and transparent cylinder body 1 is integrally formed with bottom outer shell 12, the transparent cylinder body 1 with
Transparent partition is provided among bottom outer shell 12, transparent partition is glass material or high strength plastic materials；The transparent cylinder body 1
Bottom both ends are respectively arranged with the first check valve 3, the 4th check valve 11, and when filtering, water is unidirectional by the 4th from transparent cylinder body 1
Valve 11 flows out, and is returned in transparent cylinder body 1 by the first check valve 3 again after filtering, realizes circulating filtration；First check valve 3
Upper end and 360oThe connection of the mouth of a river 2 is rotated out of, filtered water is from 360oIt rotates out of and is discharged in the mouth of a river 2,360oRotating out of the mouth of a river 2 can
Rotation, water outlet direction can be adjusted according to the hobby of user；The bottom outer shell 12 is internally provided with classified filtering slot
13, water pump 5, partition is provided among the classified filtering slot 13, water pump 5, and partition divides bottom outer shell 12 for two parts, filtering
Classified filtering slot 13 is arranged in filter chamber, is provided with water pump 5 in reservoir chamber, water pump 5 is fixed with reservoir chamber bottom for room and reservoir chamber
Connection；The water pump 5 is arranged below the first check valve 3 and is connect by admitting pipe joint 4 with the first check valve 3, after filtering
Water enter reservoir chamber, after starting water pump 5, filtered water enters into and through admitting pipe joint 4, the from the water inlet of water pump 5
One check valve 3,360oThe mouth of a river 2 is rotated out of to be expelled back into transparent cylinder body 1；The classified filtering slot 13 includes multiple lautertuns, most
Air lift type floating ball 8 is provided in the lautertuns in outside, 8 upper end of air lift type floating ball is connect with the 4th check valve 11；Described point
It is provided with third check valve 7 on grade 13 inner wall of lautertuns, is provided with second one-way valve 6 on 12 side wall of bottom outer shell, it is described
Second one-way valve 6 is connect with third check valve 7, and filtered water flows into reservoir chamber by third check valve 7, second one-way valve 6
It is interior.
Embodiment 1
A kind of biochemical filtration aquarium structure, manual filtration mode:
The biochemical filtration aquarium structure, including transparent cylinder body 1 and bottom outer shell 12 arranged at the bottom, it is described transparent
It is provided with transparent partition among cylinder body 1 and bottom outer shell 12, the transparent 1 bottom both ends of cylinder body are respectively arranged with the first check valve
3, the 4th check valve 11,3 upper end of the first check valve and 360oThe connection of the mouth of a river 2 is rotated out of, is set inside the bottom outer shell 12
It is equipped with classified filtering slot 13, water pump 5, is provided with partition among the classified filtering slot 13, water pump 5, the setting of water pump 5 is the
It is connect below one check valve 3 and by admitting pipe joint 4 with the first check valve 3, the classified filtering slot 13 includes multiple filterings
Slot is provided with air lift type floating ball 8 in outermost lautertuns, and 8 upper end of air lift type floating ball is connect with the 4th check valve 11, institute
It states and is provided with third check valve 7 on 13 inner wall of classified filtering slot, be provided with second one-way valve 6 on 12 side wall of bottom outer shell,
The second one-way valve 6 is connect with third check valve 7.
Described 3600It rotates out of the mouth of a river 2 to be detachably connected with the first check valve 3, described 3600It is inverted for rotating out of the mouth of a river 2
Bell-mouth structure of air；The second one-way valve 6 and third check valve 7 are detachably connectable, and 8 upper end of air lift type floating ball is single with the 4th
Detachably connectable to valve 11, the classified filtering slot 13 is drawer structure and plugs connection, drawer structure side with bottom outer shell 12
Just replacement filter material and cleaning filter material；It is provided with internal fastening type knob on 13 outside of classified filtering slot, it is described to shake hands and be classified
Filter pocket 13 is on a horizontal surface, and keeps the consistency of cylinder body appearance.
The classified filtering slot 13 includes three lautertuns, is followed successively by impurity dislodger, biochemical filtration slot and physical filtering
Slot, the impurity dislodger is connected to biochemical filtration slot top and biochemical filtration slot through hole is provided with the first deflector 9, described
Biochemical filtration slot is connected to physical filtering slot top and physical filtering slot through hole is provided with the second deflector 10, and deflector is convenient
Water flow is logical；The impurity deposition trench bottom is provided with multiple upward partitions, and impurity dislodger is divided into multiple sons and sunk by partition
Shallow lake slot facilitates the precipitation of solid material such as the excrement of fish；8 bottom of air lift type floating ball is provided with support rod, the support rod with it is miscellaneous
Matter deposits trench bottom bottom and is flexibly connected, and the support rod is higher than partition, and air lift type floating ball 8 does not contact with bottom, do not influence to sink
Shallow lake effect；Ceramic biochemistry ball is filled in the biochemical filtration slot, cultivating on the ceramics biochemistry ball has nitrobacteria；The object
It manages and is filled with active carbon in lautertuns.
Embodiment 1 uses three-stage filtration mode, first precipitates, then by ceramic biochemistry ball and nitrobacteria filtering, decomposition, subtracts
Stink and granule foreign in few water, are filtered finally by active carbon, are thoroughly filtered off the magazine in water, are reached filtered water quality
To the requirement for changing water.
Embodiment 1 is to change aqueous mode manually, when user sees water degradation, when needing to change water, automatic starting water pump 5 into
Row changes water, and water pump 5 is automatically turned off after filtering.
Embodiment 2
A kind of biochemical filtration aquarium structure, timing filtered model:
The biochemical filtration aquarium structure, including transparent cylinder body 1 and bottom outer shell 12 arranged at the bottom, it is described transparent
It is provided with transparent partition among cylinder body 1 and bottom outer shell 12, the transparent 1 bottom both ends of cylinder body are respectively arranged with the first check valve
3, the 4th check valve 11,3 upper end of the first check valve and 360oThe connection of the mouth of a river 2 is rotated out of, is set inside the bottom outer shell 12
It is equipped with classified filtering slot 13, water pump 5, is provided with partition among the classified filtering slot 13, water pump 5, the setting of water pump 5 is the
It is connect below one check valve 3 and by admitting pipe joint 4 with the first check valve 3, the classified filtering slot 13 includes multiple filterings
Slot is provided with air lift type floating ball 8 in outermost lautertuns, and 8 upper end of air lift type floating ball is connect with the 4th check valve 11, institute
It states and is provided with third check valve 7 on 13 inner wall of classified filtering slot, be provided with second one-way valve 6 on 12 side wall of bottom outer shell,
The second one-way valve 6 is connect with third check valve 7.
Timer is provided on the outside of the bottom outer shell 12, the timer is connect with water pump 5, is periodically carried out to water
Filter；Filtering is arranged on the timer and changes water frequency, change water time point and change the water period by user, for example filtering in two days is primary,
10 points of the morning start to filter, and filtration time is half an hour.
When timer judgement needs to change water, timer is issued to water pump 5 and is instructed, and water pump 5 is started to work, the pressure of water flow
It washes the first check valve 3 open, is filled the water into transparent cylinder body 1, when 13 water level of classified filtering slot in bottom outer shell 12 is lower than minimum water
When low, air lift type floating ball 8 sinks, and the 4th check valve 11 of classification for being mounted on transparent 1 bottom of cylinder body is opened, in transparent cylinder body 1
Water reaches filtration cycle by flowing back to water pump 5 after 13 classified filtering of classified filtering slot again because pressure flows to bottom outer shell 12
Purpose；When switching off the pump 5,13 water level of classified filtering slot of connection bottom outer shell 12 goes up, and drives floating roof on air lift type floating ball 8
Firmly the 4th check valve 11, to close the 4th check valve 11, the water for being disconnected transparent cylinder body 1 enters bottom outer shell 12.
Working principle of the utility model is:
When water pump 5 is started to work, the pressure of water flow washes 3 valve of the first check valve for being mounted on transparent 1 bottom of cylinder body open, to
Water filling in transparent cylinder body 1, when 13 water level of classified filtering slot of connection bottom outer shell 12 is low lower than minimum water, air lift type floating ball 8
Sink, the 4th check valve 11 for being mounted on transparent 1 bottom of cylinder body is opened, and the water in transparent cylinder body 1 flows to bottom outer shell because of pressure
12, achieve the purpose that filtration cycle by flowing back to water pump 5 after 13 classified filtering of classified filtering slot again；When switching off the pump 5, connection
13 water level of classified filtering slot of logical bottom outer shell 12 goes up, and drives the floating of air lift type floating ball 8 to withstand the 4th check valve 11, to close
The 4th check valve 11 is closed, the water for being disconnected transparent cylinder body 1 enters bottom outer shell 12.
When needing more preferable filter material, classified filtering slot 13 is pulled open, is mounted on the second one-way valve 6 and peace of 12 side wall of bottom outer shell
Third check valve 7 mounted in 13 side wall of classified filtering slot is closed, and air lift type floating ball 8 is separated with the 4th check valve 11, and the 4th is unidirectional
Valve 11 is closed.What be can be convenient changes water and replacement filtering material；After finishing changing water and filtering material, classified filtering slot 13 is pushed into
Bottom outer shell 12 is mounted on the second one-way valve 6 of 12 side wall of bottom outer shell and is mounted on the third list of 13 side wall of classified filtering slot
It is opened to valve 7, air lift type floating ball 8 couples with the 4th check valve 11, and the 4th check valve 11 is opened, and fills the water into bottom outer shell 12 straight
Reach peak level to water level, the floating of air lift type floating ball 8, which withstands the 4th check valve 11, makes its closing.
Water flow filtration cycle sequence:
1, classified filtering slot 13 is flowed by the 4th check valve 11；
2, it is flowed into the reservoir chamber of 12 one end of bottom outer shell after the filtering of classified filtering slot 13；
3, water pump 5 extracts the indoor water of water storage out, passes through admitting pipe joint 4, the first check valve 3,360oRotate out of the mouth of a river 2
It is expelled back into transparent cylinder body 1.
The characteristics of the utility model and generate the utility model has the advantages that
1, the filter structure of this aquarium solves existing aquarium because water circulation needs to determine in upper cylinder part
Deep structure, water reflux water pump needs for water inlet to be arranged at the top of aquarium in order to prevent, in order to which better water circulating effect needs
Water inlet is put into water outlet and diagonally increases the structures such as pipeline, these structures increase cost and also affect outside whole
It sees.
2, some small-sized aquariums can not use better bottom filtering structure due to compact-sized, thus because filtering is imitated
Fruit is bad to need frequently to change water just the problem of can solve water quality.By this structure, solves and change water and replace filtering material hardly possible
Problem.
3, this structure uses 3 segmentation bottom filtering structures, and separating dry space from moist space mode is filled into nitrification from initial impurity physics
The biochemical filtration of bacteria bio ball, then the physical filtering of activated carbon is arrived, stink and yellow substance in water removal are removed, to guarantee water
Body water quality it is long-term well with stabilization.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
Finally, it should be noted that the preferred embodiment in the utility model disclosed above be only intended to help to illustrate it is practical
It is novel.The detailed description of the preferred embodiment is not exhaustive, and also not limiting the utility model is only the specific implementation
Mode.Obviously, it according to the content of this specification, can make many modifications and variations.This specification is chosen and specifically describes these
Embodiment is in order to preferably explain the principles of the present invention and practical application, to make skilled artisan
It can better understand and utilize the utility model.The utility model is only by the limit of claims and its full scope and equivalent
System.
Claims (9)
1. a kind of biochemical filtration aquarium structure, including transparent cylinder body and bottom outer shell arranged at the bottom, it is characterised in that: institute
It states and is provided with transparent partition among transparent cylinder body and bottom outer shell, it is unidirectional that the transparent cylinder base both ends are respectively arranged with first
Valve, the 4th check valve, first check valve upper end are connect with the mouth of a river is rotated out of, and the bottom outer shell, which is internally provided with, to be classified
Filter pocket, water pump, are provided with partition among the classified filtering slot, water pump, and the water pump is arranged below the first check valve and logical
It crosses admitting pipe joint to connect with the first check valve, the classified filtering slot includes multiple lautertuns, is set in outermost lautertuns
It is equipped with air lift type floating ball, air lift type floating ball upper end is connect with the 4th check valve, is provided on the classified filtering slot inner wall
Third check valve is provided with second one-way valve on the bottom outer shell side wall, and the second one-way valve is connect with third check valve.
2. a kind of biochemical filtration aquarium structure according to claim 1, it is characterised in that: described to rotate out of the mouth of a river and the
One check valve is detachably connected, and the mouth of a river that rotates out of is inverted bell-mouth structure of air.
3. a kind of biochemical filtration aquarium structure according to claim 1, it is characterised in that: the second one-way valve and the
Three check valves are detachably connectable, and air lift type floating ball upper end and the 4th check valve are detachably connectable, and the classified filtering slot is
Drawer structure and with bottom outer shell plug connect.
4. a kind of biochemical filtration aquarium structure according to claim 3, it is characterised in that: on the outside of the classified filtering slot
On be provided with internal fastening type knob, the knob is on a horizontal surface with classified filtering slot.
5. a kind of biochemical filtration aquarium structure according to claim 1 or 4, it is characterised in that: the classified filtering slot
Including three lautertuns, it is followed successively by impurity dislodger, biochemical filtration slot and physical filtering slot, is provided in the impurity dislodger
Air lift type floating ball, the impurity dislodger is connected to biochemical filtration slot top and biochemical filtration slot through hole is provided with the first water conservancy diversion
Plate, the biochemical filtration slot is connected to physical filtering slot top and physical filtering slot through hole is provided with the second deflector.
6. a kind of biochemical filtration aquarium structure according to claim 5, it is characterised in that: the impurity deposits trench bottom
Multiple upward partitions are provided with, impurity dislodger is divided into multiple sub- precipitation tanks by partition.
7. a kind of biochemical filtration aquarium structure according to claim 1, it is characterised in that: air lift type floating ball bottom
It is provided with support rod, the support rod is flexibly connected with impurity deposition trench bottom, and the support rod is higher than partition.
8. a kind of biochemical filtration aquarium structure according to claim 5, it is characterised in that: filled out in the biochemical filtration slot
Filled with ceramic biochemistry ball, cultivating on the ceramics biochemistry ball has nitrobacteria；Active carbon is filled in the physical filtering slot.
9. a kind of biochemical filtration aquarium structure according to claim 1, it is characterised in that: set on the outside of the bottom outer shell
It is equipped with timer, the timer connect with water pump, is periodically filtered to water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821557351.2U CN209073250U (en) | 2018-09-25 | 2018-09-25 | A kind of biochemical filtration aquarium structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821557351.2U CN209073250U (en) | 2018-09-25 | 2018-09-25 | A kind of biochemical filtration aquarium structure |
Publications (1)
| Publication Number | Publication Date |
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| CN209073250U true CN209073250U (en) | 2019-07-09 |
Family
ID=67117374
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| CN201821557351.2U Active CN209073250U (en) | 2018-09-25 | 2018-09-25 | A kind of biochemical filtration aquarium structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN209073250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111264459A (en) * | 2020-04-07 | 2020-06-12 | 吴兵来 | Automatic water changing equipment for small landscape water body in garden industry |
-
2018
- 2018-09-25 CN CN201821557351.2U patent/CN209073250U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111264459A (en) * | 2020-04-07 | 2020-06-12 | 吴兵来 | Automatic water changing equipment for small landscape water body in garden industry |
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