CN106351195B - A kind of adjustable water surface dirt-collecting assistor - Google Patents

A kind of adjustable water surface dirt-collecting assistor Download PDF

Info

Publication number
CN106351195B
CN106351195B CN201610851892.5A CN201610851892A CN106351195B CN 106351195 B CN106351195 B CN 106351195B CN 201610851892 A CN201610851892 A CN 201610851892A CN 106351195 B CN106351195 B CN 106351195B
Authority
CN
China
Prior art keywords
location hole
cylinder
collecting
inner cylinder
hole group
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.)
Active
Application number
CN201610851892.5A
Other languages
Chinese (zh)
Other versions
CN106351195A (en
Inventor
韦甦
韦婉婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang University of Technology ZJUT
Original Assignee
Zhejiang University of Technology ZJUT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang University of Technology ZJUT filed Critical Zhejiang University of Technology ZJUT
Priority to CN201610851892.5A priority Critical patent/CN106351195B/en
Publication of CN106351195A publication Critical patent/CN106351195A/en
Application granted granted Critical
Publication of CN106351195B publication Critical patent/CN106351195B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B15/00Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/10Devices for removing the material from the surface

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sewage (AREA)

Abstract

A kind of adjustable water surface dirt-collecting assistor, including the inside and outside inner barrel and outer barrel being nested, the top of the outer cylinder is higher by the top of the inner cylinder, and the outer cylinder can be moved up and down and be positioned along the outer wall of the inner cylinder;The both ends of the outer cylinder are open, and the top of the inner cylinder is equipped with top cover, bottom end is equipped with bottom plate, and is laid with through-hole on the top cover of inner cylinder, and inner cylinder is enclosed interior barrel chamber by top cover, bottom plate;The inner cylinder is intracavitary to be equipped with water pump, and the discharge outlet of the water pump is connected with drainpipe, and the drainpipe passes through the top cover and extends to outside the outer cylinder.The present invention converges the floating pollutants such as leaf, rubbish by the directed flow of surface water, facilitates Salvage and Wreck Removal, time saving and energy saving.And it is low in cost, durable, the landscape water body poor particularly suitable for mobility uses.

Description

A kind of adjustable water surface dirt-collecting assistor
Technical field
The present invention relates to a kind of adjustable water surface dirt-collecting assistors.
Background technique
With the raising of people's living standard and living environment's mass, external humane scape of the people to entire residential quarter Sight, greening and the requirement of water environment are higher and higher, and manmade landscape, artificial landscape river, landscape impoundments and landscape pond in city constantly gush It is existing.Since city appearance water body is mostly static or poor fluidity closing slow flow water bodies, the general small, water environment with water surface area The features such as capacity is small, water body self-purification ability is low.It is influenced by seasonal law and air quality, landscape water body is often fallen as deadwood The receiving water body of leaf, greasy dirt and house refuse.In order to improve water quality and keep landscape, above-mentioned floating pollutants need to be cleared up in time. But it is influenced by water surface area, the pollutant salvaging difficulty among the water surface is larger, and especially winter, water temperature is lower, and working environment is disliked It is bad.In addition common Refloatation method is to floating greasy dirt substantially without effect.
It is automatically clear that the Chinese patent of publication number CN104876287A discloses a kind of floatage-type, pocket floating on water sundries Except device.The device controls height and the position of the contaminants-collecting apparatus of pond underwater using 3~6 connected buoyant spheres It sets, the contaminants-collecting apparatus sewage pipe pre-buried with pool wall is connected, and carries out spoil disposal and decontamination as power by small pump.This is specially Sharp technology to a certain extent can the rubbish such as mud scum to the water surface and leaf be collected and outlet, but still there are following disadvantages: 1. the collector depth suitable for reading apart from the water surface is also increase accordingly, it cannot be guaranteed that collecting effect with the increase of dirt in collector; 2. the sewage pipe outlet that the dirt collected need to be pre-buried by pool wall, dirt-collecting point is under many restrictions, and use is relatively multiple It is miscellaneous, it is larger to promote difficulty;3. water pump is mounted on sewage pipe, the parameters such as flow, lift of water pump will be very limited, directly Influence dirt-collecting effect;4. the big dirt such as leaf, polybag enters collector and sewage pipe, easily result in blockage, Er Qieqing It is larger to manage difficulty.
The Chinese patent of notification number CN203947815U discloses a kind of water surface decontamination apparatus.The contaminants collector of the device It is connect with the bracket for being fixed on pool edge, and adjusts height with the special slot of card, force piece is connected in contaminants collector bottom, in dirt Strainer is set in object collector, water surface dirt is retained by water circulation, achievees the purpose that decontamination.The patented technology energy Realize water surface decontamination, but still there are following disadvantages: 1. fixed bracket installations have corresponding requirements to pool wall thickness, to outdoor landscape water Body applicability is not strong;2. being influenced by support mounting point, the arrangement of dirt-collecting point receives considerable restraint;3. water pump power part is pacified On the pipeline of collector bottom, the parameters such as flow, lift of water pump will be very limited, and directly affect dirt-collecting effect Fruit;4. strainer capacity is limited, it is not suitable for the big water body of amount of contaminants.
In short, the relevant technologies of water surface dirt-collecting or bleeding point are restricted larger at present, applicability is not strong;Water Pump type selecting is restricted, and influences collecting effect, therefore, it is difficult to promote the use of.
Summary of the invention
To overcome defect present in background technique, the present invention provides a kind of adjustable water surface dirt-collecting assistor.With Achieve the purpose that converging the dirts such as leaf, paper, the greasy dirt of floating on water saves artificial effect to reduce salvaging difficulty; And the present invention is low in cost, durable, the landscape water body poor particularly suitable for mobility uses.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of adjustable water surface dirt-collecting assistor, including the inside and outside inner barrel and outer barrel being nested, the top of the outer cylinder It is higher by the top of the inner cylinder, and the outer cylinder can be moved up and down and be positioned along the outer wall of the inner cylinder;
The both ends of the outer cylinder are open, and the top of the inner cylinder is equipped with top cover, bottom end is equipped with bottom plate, and the top cover of inner cylinder On be laid with through-hole, inner cylinder is enclosed interior barrel chamber by top cover, bottom plate;The inner cylinder is intracavitary to be equipped with water pump, the draining of the water pump Mouth is connected with drainpipe, and the drainpipe passes through the top cover and extends to outside the outer cylinder;
The outer cylinder is equipped with the outer location hole group that several groups are arranged along outer cylinder axially spaced-apart, and every group of outer location hole group includes Along the circumferential direction of outer cylinder, location hole several on outer cylinder outer is set;The inner cylinder is equipped with interior location hole group, the interior positioning Hole group include with the outer location hole of outer location hole group correspondingly in location hole;The outer cylinder is axially moveable, and by plug-in unit It is inserted into the interior location hole group and outer location hole group to connect, inner barrel and outer barrel is fixed.
Further, the plug-in unit is screw rod, metallic rod or screw.
Further, adjacent outer location hole in the adjacent corresponding central angle of interior location hole and outer location hole group in interior location hole group Corresponding central angle is equal.
Further, each outer location hole group includes 3 outer location holes, and each interior location hole group includes 3 interior location holes, outside The corresponding central angle of adjacent outer location hole is 120 ° in location hole group, the corresponding central angle of adjacent interior location hole in interior location hole group It is 120 °.
Further, the group number of the interior location hole group is 1 group.
Further, the tip edge of the outer cylinder is zigzag.
Further, the preformed hole that supply and discharge water pipe passes through is offered on the top cover.
Further, the cross-sectional area of the bottom plate is greater than or equal to the cross-sectional area of the outer cylinder.
It further, further include the telescopic tripod matched with bottom plate, the center of the bottom plate is equipped with screw hole, the bottom Plate and telescopic tripod are fixed to each other by the cooperation of bolt and screw hole.
Beneficial effects of the present invention are mainly manifested in:
1. the mounting height of outer cylinder is adjusted by the cooperation of interior location hole group and outer positioning group, outer cylinder is controlled apart from water The height in face is applicable to the water body of a variety of depth, strong applicability;And by the cooperation of telescopic tripod, the present invention can be fitted For a variety of mounting locations.
2. anywhere the present invention can install and use, and structure is simple, small volume, carries convenient storage.
3. it is intracavitary that small pump can be placed directly within inner cylinder by the present invention, dirt can be retained by top cover, prevent from blocking, and The drainpipe of water pump is pierced by from preformed hole, will not influence collecting effect.
4. the present invention converges the floating pollutants such as leaf, rubbish by the directed flow of surface water, facilitate Salvage and Wreck Removal, saves Shi Shengli.
5. the present invention is used to collect water body surface layer oil slick, the drainpipe of water pump can be accessed subsequent apparatus for physical Chemical treating, Collection efficiency is higher.
6. the present invention is low in cost, durable, the landscape water body poor particularly suitable for mobility is used.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is top view of the invention.
Specific embodiment
Referring to attached drawing, a kind of adjustable water surface dirt-collecting assistor is described including the inside and outside inner cylinder 2 and outer cylinder 1 being nested The top of outer cylinder 1 is higher by the top (100~150mm of top that the top of outer cylinder 1 is higher by the inner cylinder 2) of the inner cylinder 2, and institute Stating outer cylinder 1 can move up and down and position along the outer wall of the inner cylinder 2;
The both ends of the outer cylinder 1 are open, and the top of the inner cylinder 2 is equipped with top cover 3, bottom end is equipped with bottom plate 4, and inner cylinder 2 Top cover 3 on be laid with through-hole, inner cylinder is enclosed interior barrel chamber by top cover 3, bottom plate 4;The inner cylinder is intracavitary equipped with water pump 8, described The discharge outlet of water pump 8 is connected with drainpipe 10, and the drainpipe 10 passes through the top cover 3 and extends to outside the outer cylinder 1;It is described Water pump 8 is connected with power supply.The diameter of top cover 3 is equal with the outer diameter of inner cylinder 2, and top cover 3 can be directly placed at 2 top of inner cylinder.
Further, the outer cylinder 1 is equipped with several groups along outer cylinder axis 1 to spaced outer location hole group, and every group fixed outside Position hole group includes that location hole 9 several on outer cylinder outer is arranged in along the circumferential direction of outer cylinder 1;The inner cylinder 2 is equipped with interior location hole Group, the interior location hole group 2 include and the one-to-one interior location hole 6 of the outer location hole 9 of outer location hole group;1 edge of outer cylinder Axial movement, and in the interior location hole group and outer location hole group that plug-in unit insertion is connected, inner cylinder 2 and outer cylinder 1 is fixed.
Further, the plug-in unit is screw rod, metallic rod or screw.
Further, the corresponding central angle of adjacent interior location hole 6 and adjacent outer positioning in outer location hole group in interior location hole group The corresponding central angle in hole 9 is equal.
Further, each outer location hole group includes 3 outer location holes 9, and each interior location hole group includes 3 interior location holes 6, The corresponding central angle of adjacent outer location hole 9 is 120 ° in outer location hole group, the corresponding circle of adjacent interior location hole 6 in interior location hole group Heart angle is 120 °.
Further, the group number of the interior location hole group is 1 group.
Further, the tip edge of the outer cylinder 1 is zigzag, is entered in outer cylinder 1 convenient for water flow from side.Sawtooth tooth is high 20~40mm.
Further, the preformed hole 7 that supply and discharge water pipe 10 passes through is offered on the top cover 3.
Further, the cross-sectional area of the bottom plate 4 is greater than or equal to the cross-sectional area of the outer cylinder 1.
It further, further include the telescopic tripod matched with bottom plate 4, the center of the bottom plate 4 is equipped with screw hole, described Bottom plate 4 and telescopic tripod are fixed to each other by the cooperation of fastening screw and screw hole.
Every one group of 20mm left and right settings outer location hole group on outer cylinder 1, the aperture of each outer location hole 9 is 3~5mm, and Three outer location holes 9 in outer location hole group are circumferentially uniformly distributed along outer cylinder.It is arranged in one group at the top of inner cylinder 2 on inner cylinder 2 Location hole group, interior location hole group include 3 interior location holes 6.3 interior location holes 6 are determined with outside three in outer location hole group respectively Position hole 9 is aligned and penetrates through one by one, and outer location hole group is aligned and penetrates through with interior location hole group, then plug-in unit insertion is inserted into respectively and is mutually passed through Logical outer location hole 9 and interior positioning hole, can play the role of fixed inner cylinder 2 and outer cylinder 1;Selection is along the axially distinct height of outer cylinder 1 Outer location hole group and interior location hole group at degree cooperate, and can play the role of adjusting 1 mounting height of outer cylinder, to adapt to different water bodys Depth.
And through-hole is laid on the top cover 3 of inner cylinder 2, and through-hole is arranged in top cover 3 along plum blossom-shaped, and the diameter of through-hole is 5~ 8mm.Through-hole is used to retain greater particle size dirt, and the intracavitary water pump 8 of protection inner cylinder extends the service life of water pump 8.
It is smooth in landscape pond bottom of pond, and when water depth is little, the present invention is filled into water and is placed in floating pollutant bleeding point, It is intracavitary to be placed in inner cylinder in underwater 20mm or so by the top of control outer cylinder 1 for water pump 8, and top cover 3 is placed on inner cylinder 2, power supply Line and drainpipe are pierced by by preformed hole 7.24V or 36V small-sized DC water pump can be selected in water pump 8, is supplied with direct-flow storage battery is mobile Electricity.Start water pump 8, under the effect of water pump 8, surface water is flowed to 1 interior orientation of outer cylinder, drives sewage floating on water convergence, such as The dirts such as leaf, polybag, beverage bottle can be centered around around outer cylinder 1, be salvaged convenient for orientation, reduced and salvaged difficulty.It is set when collecting When the dirts such as leaf, polybag, beverage bottle, the drainpipe of water pump 8 can be placed directly within inside water body;Such as collect surface flotation oil The drainpipe of water pump 8 can be accessed subsequent greasy dirt apparatus for physical Chemical treating or outward transport, further to purify by dirt.
In pond when bottom of pond out-of-flatness, it can be used cooperatively with telescopic tripod.When water depth is larger, this can be sent out Bright bottom plate 4 fastening screw 5 is connected with telescopic tripod platform;When the depth of water is little or very big, interior location hole 6 can be passed through Cooperation with plug-in unit hangs on the present invention below telescopic tripod, and telescopic tripod can be used in underwater, can also be stood It is used in bank.The height of outer cylinder 1 is controlled in underwater 20mm or so by adjusting the foot prop length of telescopic tripod.It will Water pump 8 is placed in inner cylinder 2, and top cover 3 is placed on inner cylinder 2, and power supply line and drainpipe are pierced by by preformed hole 7.It will be of the invention Water is filled, sewage floating on water convergence can be realized in starting water pump 8.Leaf, polybag, beverage bottle dirt are such as collected, can be incited somebody to action Pump drain pipe is placed directly within inside water body;Surface flotation greasy dirt is such as collected, the drainpipe of water pump 8 can be accessed subsequent greasy dirt object Change processing unit or outward transport.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention Range should not be construed as being limited to the specific forms stated in the embodiments, and protection scope of the present invention also includes art technology Personnel conceive according to the present invention it is conceivable that equivalent technologies mean.

Claims (9)

1. a kind of adjustable water surface dirt-collecting assistor, it is characterised in that: described outer including the inside and outside inner barrel and outer barrel being nested The top of cylinder is higher by the top of the inner cylinder, and the outer cylinder can be moved up and down and be positioned along the outer wall of the inner cylinder;
The both ends of the outer cylinder are open, and the top of the inner cylinder is equipped with top cover, bottom end is equipped with bottom plate, and cloth on the top cover of inner cylinder Equipped with through-hole, inner cylinder is enclosed interior barrel chamber by top cover, bottom plate;The inner cylinder is intracavitary to be equipped with water pump, and the discharge outlet of the water pump connects It is connected to drainpipe, the drainpipe passes through the top cover and extends to outside the outer cylinder;
The outer cylinder is equipped with the outer location hole group that several groups are arranged along outer cylinder axially spaced-apart, and every group of outer location hole group includes along outer Location hole several on outer cylinder outer is arranged in the circumferential direction of cylinder;The inner cylinder is equipped with interior location hole group, the interior location hole group Including the outer location hole with outer location hole group correspondingly in location hole;The outer cylinder is axially moveable, and plug-in unit is inserted into In the interior location hole group and outer location hole group to connect, inner barrel and outer barrel is fixed.
2. a kind of adjustable water surface dirt-collecting assistor as described in claim 1, it is characterised in that: the plug-in unit is screw rod Or screw.
3. a kind of adjustable water surface dirt-collecting assistor as claimed in claim 2, it is characterised in that: phase in interior location hole group The corresponding central angle of location hole central angle corresponding with outer location hole adjacent in outer location hole group is equal in neighbour.
4. a kind of adjustable water surface dirt-collecting assistor as claimed in claim 3, it is characterised in that: each outer location hole group Including 3 outer location holes, each interior location hole group includes 3 interior location holes, and adjacent outer location hole is corresponding in outer location hole group Central angle is 120 °, and the corresponding central angle of adjacent interior location hole is 120 ° in interior location hole group.
5. a kind of adjustable water surface dirt-collecting assistor as claimed in claim 4, it is characterised in that: the interior location hole group Group number be 1 group.
6. a kind of adjustable water surface dirt-collecting assistor as claimed in claim 5, it is characterised in that: the top of the outer cylinder Edge is zigzag.
7. a kind of adjustable water surface dirt-collecting assistor as claimed in claim 6, it is characterised in that: opened up on the top cover The preformed hole for thering is supply and discharge water pipe to pass through.
8. a kind of adjustable water surface dirt-collecting assistor as claimed in claim 7, it is characterised in that: the bottom plate it is transversal Area is greater than or equal to the cross-sectional area of the outer cylinder.
9. a kind of adjustable water surface dirt-collecting assistor as claimed in claim 8, it is characterised in that: further include and bottom plate phase The telescopic tripod of cooperation, the center of the bottom plate are equipped with screw hole, and the bottom plate and telescopic tripod pass through bolt and spiral shell The cooperation in hole is fixed to each other.
CN201610851892.5A 2016-09-27 2016-09-27 A kind of adjustable water surface dirt-collecting assistor Active CN106351195B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610851892.5A CN106351195B (en) 2016-09-27 2016-09-27 A kind of adjustable water surface dirt-collecting assistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610851892.5A CN106351195B (en) 2016-09-27 2016-09-27 A kind of adjustable water surface dirt-collecting assistor

Publications (2)

Publication Number Publication Date
CN106351195A CN106351195A (en) 2017-01-25
CN106351195B true CN106351195B (en) 2019-04-09

Family

ID=57858026

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610851892.5A Active CN106351195B (en) 2016-09-27 2016-09-27 A kind of adjustable water surface dirt-collecting assistor

Country Status (1)

Country Link
CN (1) CN106351195B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108729429B (en) * 2018-06-11 2020-09-22 河海大学 Automatic seek marine garbage collection robot on way
CN109778819A (en) * 2019-04-01 2019-05-21 孟祥林 A kind of ornamental surface layer of water sundries method for separating and processing
JP6589162B1 (en) * 2019-07-08 2019-10-16 康司 大藪 A device that collects dust floating on the surface of liquid
CN117344705B (en) * 2023-12-04 2024-02-06 淮安市水利勘测设计研究院有限公司宿迁分公司 Floating conveying type river garbage cleaning device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6027641A (en) * 1994-11-24 2000-02-22 Cornelia Johanna Spradbury Liquid surface skimmer
US6702939B2 (en) * 2002-03-15 2004-03-09 Ronald L. Thompson Sewer cleaning tool
CN101705673A (en) * 2009-10-21 2010-05-12 王叶苗 Economic and portable device for removing blue-green algae in ponds
CN103397621A (en) * 2013-08-16 2013-11-20 叶梓扬 Water basin rubbish cleaning device
CN203947815U (en) * 2014-07-08 2014-11-19 宁波东川游泳池设备有限公司 Water surface decontamination apparatus
CN104846798A (en) * 2015-06-09 2015-08-19 苏州拓科仪器设备有限公司 Liquid surface floating material circulatory removing device
CN206173925U (en) * 2016-09-27 2017-05-17 浙江工业大学 Assistor is collected to surface of water filth with adjustable

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6027641A (en) * 1994-11-24 2000-02-22 Cornelia Johanna Spradbury Liquid surface skimmer
US6702939B2 (en) * 2002-03-15 2004-03-09 Ronald L. Thompson Sewer cleaning tool
CN101705673A (en) * 2009-10-21 2010-05-12 王叶苗 Economic and portable device for removing blue-green algae in ponds
CN103397621A (en) * 2013-08-16 2013-11-20 叶梓扬 Water basin rubbish cleaning device
CN203947815U (en) * 2014-07-08 2014-11-19 宁波东川游泳池设备有限公司 Water surface decontamination apparatus
CN104846798A (en) * 2015-06-09 2015-08-19 苏州拓科仪器设备有限公司 Liquid surface floating material circulatory removing device
CN206173925U (en) * 2016-09-27 2017-05-17 浙江工业大学 Assistor is collected to surface of water filth with adjustable

Also Published As

Publication number Publication date
CN106351195A (en) 2017-01-25

Similar Documents

Publication Publication Date Title
CN106351195B (en) A kind of adjustable water surface dirt-collecting assistor
CN206173925U (en) Assistor is collected to surface of water filth with adjustable
CN103334486B (en) Gutter inlet automatic overflow pollutant intercepting device
CN103408095B (en) Floating self-propelled solar energy water body purifier
CN203514395U (en) Impurity discarding system auto-adaptive to water level variation to extract clean rainwater
CN207376591U (en) A kind of liquid level garbage automatic collection device
CN203741924U (en) Rainwater collection device suitable for building top balcony
CN207331651U (en) A kind of garbage on water automatic collecting device
CN106121004B (en) A kind of adjustable automatic flow abandoning type Rainwater collection system
CN105696819A (en) Environment-friendly water-saving type solar public toilet
CN206635861U (en) A kind of rain water collecting system
CN106400933A (en) Roof rainwater source regulating device based on sponge city concept and running method
CN207002434U (en) A kind of sanitary sewage pretreatment system
CN205712285U (en) A kind of rain collector of power self-support formula ultra-vioket radiation stabilizing water quality
CN206444313U (en) A kind of plumbing pipe special
CN203602426U (en) Sewage treatment unit for garden
CN106400943A (en) Landscape rainwater storage pool
CN110820847A (en) Rainwater collecting and recycling device
CN207376592U (en) A kind of collection device for garbage floating on surface
CN114753335A (en) Intelligent water surface garbage collecting device
CN205759936U (en) A kind of rain water on roof vertical filter unit
CN211395617U (en) Floater collection device
CN108751314A (en) It is a kind of to collect the air-lift device promoted for garbage leachate
CN207405748U (en) Abandon variable flow early-stage rainwater stream abandoning device
CN210367318U (en) Oil-separating sand-settling device for sewage of villages and towns

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant