CN205171855U - Roof ice -melt and snow water collection device - Google Patents

Roof ice -melt and snow water collection device Download PDF

Info

Publication number
CN205171855U
CN205171855U CN201520897177.6U CN201520897177U CN205171855U CN 205171855 U CN205171855 U CN 205171855U CN 201520897177 U CN201520897177 U CN 201520897177U CN 205171855 U CN205171855 U CN 205171855U
Authority
CN
China
Prior art keywords
pipe
roof
snow
sewer pipe
melt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520897177.6U
Other languages
Chinese (zh)
Inventor
石喜
何鹏程
陶虎
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.)
Lanzhou Jiaotong University
Original Assignee
Lanzhou Jiaotong University
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 Lanzhou Jiaotong University filed Critical Lanzhou Jiaotong University
Priority to CN201520897177.6U priority Critical patent/CN205171855U/en
Application granted granted Critical
Publication of CN205171855U publication Critical patent/CN205171855U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108Rainwater harvesting
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/20Solar thermal

Landscapes

  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

The utility model relates to a roof ice -melt and snow water collection device, the vertical sewer pipe that installs in upper end on roof is provided with the filter screen around the sewer pipe, and the top cap is installed to the upper end of filter screen, and sewer pipe internally mounted has heating device, still install solar power system on the roof, solar power system's power output end is connected with heating device's power input end, and solar power system still is connected with external power supply, sewer pipe's lower extreme and water tank are linked together, and the outlet pipe is installed to the lower extreme of water tank, and the bottom intercommunication of outlet pipe has the three -way valve, two mouths of pipe in addition of three -way valve are linked together with well water pipe and water supply line respectively, drainage pipe is installed to the upper end of water tank, and drainage pipe is linked together with the inside of water tank. Again, collecting and having utilized the snow water, northern water resource shortage problem has been alleviated to a certain extent to changing waste into valuables. The the device design is simple, and it is easy to realize, low cost, and the market range of application is wide.

Description

A kind of roof ice-melt and snow-broth gathering-device
Technical field
The utility model belongs to deicing equipment technical field, particularly relates to the ice-melt of a kind of roof and snow-broth gathering-device.
Background technology
Northern China is the Northeast especially, and winter, very cold, was easy to snowfall, and fall that heavy snow has that frequency is high, wide coverage and the large feature of the extent of injury.In northerly city, the outfall of the especially old building roof of some buildings is easy to be covered by heavy snow because designing unreasonable, then freezes, thus results in blockage, even cause the situation that outfall is freezing.And the surface portion thawing before this of roof accumulated snow, and then be the snow melting of bottom, the moisture produced after so just easily causing the surface area snow melt of roof cannot be discharged smoothly along outfall, and this just causes roof ponding, even toward infiltration in building, affect the building life-span.What is more, drops down from roof limit, forms icicle, affect the safety of passerby's trip when cold weather at roof edge.
For the problem that roof sewer mouth is frozen in; rarer article or patent carried out discussing and solving; in the north, the commonplace de-icing method of use among the people waters outfall with hot water; until outfall dredging; usually like this, can consume a large amount of manpowers and time; and roof accumulated snow people walks easily slip above and cause danger; the most important thing is to wait until that evening sky cyclostrophic is cold; outfall is frozen in again; second day high noon, weather got warm again after a cold spell; leak still, carry out same dredging work again, until the accumulated snow of roof all melts.But may in a few days, Heaven is not cooperative, again can not timing carry out a heavy snow.Solve by such method the problem that roof outfall blocks so single, waste time and energy, and effect is bad.
In addition, current roof accumulated snow is all flow out with sewer to have wasted after thawing, and China is more delayed in the development of snow-broth Collection utilization this part, causes huge water resource waste.And water shortage in north china, if the snow-broth Collection utilization melted gets up, so northern shortage of water resources problem can obtain alleviation to a certain extent.So design a kind of anti-roof outfall freeze blocking and snow-broth Collection utilization system very urgent.
Utility model content
For solving the lower technical problem of snow-broth Collection utilization rate, the utility model provides that a kind of structure is simple, easy to install, the roof ice-melt of increasing work efficiency and snow-broth gathering-device.
The technical scheme that the utility model is taked for the technical problem existed in solution known technology is:
This roof ice-melt and snow-broth gathering-device comprise: drainage pipe, sewer pipe, screen pack, top cover, heater, external power supply, device of solar generating, water tank, three way cock, water supply pipe, middle water pipe, water inlet pipe, outlet pipe;
The upper end on roof is vertically provided with sewer pipe, and the surrounding of sewer pipe is provided with screen pack, and the upper end of screen pack is provided with top cover, and sewer pipe inside is provided with heater; Roof is also provided with device of solar generating, and the power output end of device of solar generating is connected with the power input of heater, and device of solar generating is also connected with external power supply; The lower end of sewer pipe is connected with water tank, and the lower end of water tank is provided with outlet pipe, and the bottom of outlet pipe is communicated with three way cock; Another two mouths of pipe of three way cock are connected with water supply pipe with middle water pipe respectively; The upper end of water tank is provided with drainage pipe, and drainage pipe is connected with the inside of water tank.
The utility model can also adopt following technical measures:
Described top cover is provided with the second resistance wire, the outside, upper end of sewer pipe is wound with the 3rd resistance wire.
The upper end of described sewer pipe is provided with funnel inlet, and sewer pipe adopts Lucite pipe.
Described screen pack is provided with through hole.
Described top cover is conical structure, and top cover adopts plexiglass cover.
The advantage that the utility model has and good effect are: this roof ice-melt and snow-broth gathering-device can in the construction of new building, considered to enter, and for the old house that some often easily leak because roof sewer outfall is frozen, each time after snowfall, only need once to dredge sewer pipe, before upper once snowfall arrives, whole sewer pipe, by unblocked, can save human and material resources and financial resources so greatly.And Collection utilization snow-broth again, turn waste into wealth, alleviate northern shortage of water resources problem to a certain extent.This apparatus design is simple, realizes easily, with low cost, market applied range.
This roof ice-melt and snow-broth gathering-device have the following advantages:
1, the deicing new method after being frozen in for northern building roof sewer mouth, solve conventional method by hot water pouring make it dredge come with problem;
2, devise at sewer mouth the top cover that an organic glass makes, can tentatively pre-snow defence sewer mouth piles up may, while can to play the effect of protection system ice-melt circuit as outer cover;
3, accomplish that ice-melt energy used is provided by solar energy equipment to greatest extent by device of solar generating, even if at sloppy weather, when solar energy is not enough to provide the energy required for its work, can also artificially charge to it;
4, circuit is simple, with low cost, be easy to realize, and the design is automation, when after snowfall, deicing circuit is only needed to complete a deicing, just can by the ice-out of sewer pipe, and because do not have the whole sewer mouth of accumulated snow all can not be frozen in again before upper once snowfall is arrived, save a large amount of human and material resources and financial resources;
5, the snow-broth of Collection utilization can be flushed the toilet, carwash, to be watered flowers, and turns waste into wealth, has saved water resource and financial resources, alleviate northern shortage of water resources phenomenon to a certain extent.
Accompanying drawing explanation
Fig. 1 is the structural representation of the roof ice-melt that provides of the utility model embodiment and snow-broth gathering-device;
Fig. 2 is the schematic diagram of the ice-melt circuit that provides of the utility model embodiment and charging circuit;
Fig. 3 is the structural representation of the sewer pipe that the utility model embodiment provides;
Fig. 4 is the roof ice-melt that provides of the utility model embodiment and snow-broth gathering-device fundamental diagram;
In figure: 1, drainage pipe; 2, sewer pipe; 3, screen pack; 4, top cover; 5, heater; 6, external power supply; 7, device of solar generating; 8, water tank; 9, three way cock; 10, water supply pipe; 11, middle water pipe; 12, water inlet pipe; 13, outlet pipe.
Detailed description of the invention
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows.
Refer to shown in Fig. 1 to Fig. 4: this roof ice-melt and snow-broth gathering-device comprise: drainage pipe 1, sewer pipe 2, screen pack 3, top cover 4, heater 5, external power supply 6, device of solar generating 7, water tank 8, three way cock 9, water supply pipe 10, middle water pipe 11, water inlet pipe 12, outlet pipe 13;
The upper end on roof is vertically provided with sewer pipe 2, and the surrounding of sewer pipe 2 is provided with screen pack 3, and the upper end of screen pack 3 is provided with top cover 4, and sewer pipe 2 inside is provided with heater 5; Roof is also provided with device of solar generating 7, and the power output end of device of solar generating 7 is connected with the power input of heater 5, and device of solar generating 7 is also connected with external power supply 6; The lower end of sewer pipe 2 is connected with water tank 8, and the lower end of water tank 8 is provided with outlet pipe 13, and the bottom of outlet pipe 13 is communicated with three way cock 9; Another two mouths of pipe of three way cock 9 are connected with water supply pipe 10 with middle water pipe 11 respectively; The upper end of water tank 8 is provided with drainage pipe 1, and drainage pipe 1 is connected with the inside of water tank 8.
Described top cover 4 is provided with the second resistance wire, and the outside, upper end of sewer pipe 2 is wound with the 3rd resistance wire.
The upper end of described sewer pipe 2 is provided with funnel inlet, and sewer pipe 2 adopts Lucite pipe.
Described screen pack 3 is provided with through hole.
Described top cover 4 is conical structure, and top cover 4 adopts plexiglass cover.
Sewer pipe 2 adopts organic glass to make, screen pack 3 is provided with through hole, can from sewer pipe 2 screen pack 3 flow direction after ice dissolution, screen pack 3 exceeds roof 30cm, the problem causing water to overflow because discharge is excessive can be prevented, and can prevent impurity from entering lower sewer pipe 2; Top cover 4 is provided with the second resistance wire, top cover 4 adopts plexiglass cover, and top cover 4 is conical structure, can block a part of accumulated snow, and play a protective role to circuit; Sewer pipe 2 inside is provided with heater 5, play after energising melt the effect of icing block; Heater 5 provides electric energy mainly through device of solar generating 7, when device of solar generating 7 does not have electricity, provides electric energy by external power supply 6; After ice dissolution, enter water tank 8 by sewer pipe 2, three way cock 9 controls the flow direction of water, can connect water supply pipe 10 and provide water source for water tank 8, in water tank 8 during dilutional hyponatremia, overflowed by drainage pipe 1 when snow-broth melts not enough.
The upper end of sewer pipe 2 is designed to funnel-form, and aspect ratio roof plan is lower slightly, loads onto light resistor R3 at room end, and sewer pipe 2 is wound around with the second resistance wire R2, the second resistance wire R2 and the second time relay T2, insures FU and forms deicing circuit; Device of solar generating 7 and very first time relay T1 and the first light emitting diode D1, the 3rd light emitting diode D3, battery constitute charging circuit; Concrete connection is as described below: external power supply 6 is connected with the 3rd light emitting diode D3 afterwards and battery is connected in parallel, the positive terminal of battery is connected by the output of switch S with insurance FU, and the negative pole end of battery is connected with the input of the input of the first resistance wire R1 with the negative pole end of the second light emitting diode D2 and very first time relay T1 respectively; The output of very first time relay T1 is connected with the input of device of solar generating 7, the output of device of solar generating 7 is connected with the positive terminal of the first light emitting diode D1, the negative pole end of the first light emitting diode D1 is connected with the input of insurance FU, the output of the first resistance wire R1, the second resistance wire R2 respectively, be connected with the input of the second time relay T2 after second resistance wire R2, light resistor R3 series connection, the output of the second time relay T2 is connected with the positive terminal of the second light emitting diode D2.
The long-pending full snow in roof after heavy snow, sewer pipe 2 also cover accumulated snow, and this time, the entrance of sewer pipe 2 was easy to be frozen in.Very first time relay T1, the second time relay T2 are set a time, than very first time relay T1, the second time relay T2 be set as respectively evening 8-11 point and morning 8-11 point.To point in evening 8, the very first time relay T1 pre-set closes, and charging circuit is started working, first light emitting diode D1 when red, charges a battery the electric energy in daytime device of solar generating 7, has crossed setup times, very first time relay T1 disconnects, and charging circuit stops charging.When the electricity that device of solar generating 7 accumulators fills is very few, the 3rd light emitting diode D3 is bright, just needs artificial close switch S; for battery charges; when charging, the 3rd light emitting diode D3 can prevent from, in current direction device of solar generating 7, playing the effect of protection circuit.To point in morning 8, the second time relay T2 conducting, deicing circuit is started working.And by top cover 4 by snow cover, light resistor R3 does not receive illumination, this light resistor R3 has illumination resistance in period can reach hundreds of megaohm, is equivalent to open circuit in circuit; When not having illumination, resistance is in 0, and be equivalent to short circuit, light resistor R3 is equivalent to short circuit, whole deicing circuit turn-on, the second light emitting diode D2 green light, represents that whole device is started working, voltage generation current on the second resistance wire R2 and the 3rd resistance wire R3 of battery, the evolution of heat, thaws ice and snow, until the snow melting on top cover 4, light shines on light resistor R3, the resistance of light resistor R3 increases instantaneously, and deicing circuit disconnects, and quits work.
When sewer pipe 2 is through, the snow-broth after thawing flows into water tank 8 along sewer pipe 2, and water tank 8 connects middle water pipe 11 below, utilizes differential water pressures to can be applicable to flush the toilet; When snow-broth melts not enough, three way cock 9 is twisted to water supply pipe 10 side, at this moment tap water flows into water tank 8.When snow-broth is collected too much, be installed on top-right drainage pipe 1 and unnecessary snow-broth is guided into sewer enter downstairs, also can be applicable to carwash, water flowers.
The the second resistance wire R2 and the installation that are installed on top cover 4 are different with the power of sewer pipe 2 the 3rd resistance wire R4, ensure that the ice of sewer pipe 2 mouthfuls is eliminated faster, otherwise after the heat that the second resistance wire R2 distributes causes the snow melting of top cover 4, light therethrough top cover 4 is irradiated on light resistor R3, the resistance of light resistor R3 increases instantaneously, circuit in whole deicing circuit is equivalent to open circuit, deicing circuit quits work, and the ice that this time, sewer pipe 2 was tied may also not be completely removed.So need the relation between calculating second resistance wire R2 and the 3rd resistance wire R4 power.
The upper end of sewer pipe 2 is provided with funnel inlet, and funnelform sewer pipe 2 can be divided into three parts: the cylinder of the cylinder of funnel lower end, the Rotary-table at middle part and upper end.Suppose that funnel is all also frozen by snow cover with upper part D4 at sewer pipe 2 part D3 and roof, so frozen volume, can by calculating the cylinder volume V of funnel lower end 1with the Rotary-table V at middle part 2, from formula, so V 1=3.14 × 7.5 2× 25=4415.625cm 2, V 2=4808.125cm 2, then the volume that funnel freezes is V leak=V 1+ V 2=9223.75cm 2.The surface area of top cover 4 is S, supposes that the superincumbent maximum gauge of snow is d, and d=3cm, then because top cover 4 is accumulated snow, and in funnel be ice, therefore hypothesis melts the ice institute work of 1 cubic centimetre is melt 1 cubic centimetre of 5 times of doing work, if so top cover 4 accumulated snow volume changes into the volume of ice and should be the electric current so flowing through the second resistance wire R2 and the 3rd resistance wire R4 is all I 1if will ensure that freezing in top cover 4 accumulated snow and funnel has been melted simultaneously, only to need to ensure on funnel the 3rd resistance wire R4 to do work be that on top cover 4, resistance wire 1 does work doubly, namely 2.4479 times.In order to fully ensure that the icing block of accumulated snow in funnel and institute first melts completely than the accumulated snow of top cover 4, we can obtain this multiple more greatly, to get on funnel the 3rd resistance wire R4 to do work be 5 times that on top cover 4, resistance wire 1 does work.
The above is only to preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.

Claims (6)

1. a roof ice-melt and snow-broth gathering-device, it is characterized in that, this roof ice-melt and snow-broth gathering-device comprise: drainage pipe, sewer pipe, screen pack, top cover, heater, external power supply, device of solar generating, water tank, three way cock, water supply pipe, middle water pipe, water inlet pipe, outlet pipe;
The upper end on roof is vertically provided with sewer pipe, and the surrounding of sewer pipe is provided with screen pack, and the upper end of screen pack is provided with top cover, and sewer pipe inside is provided with heater; Roof is also provided with device of solar generating, and the power output end of device of solar generating is connected with the power input of heater, and device of solar generating is also connected with external power supply; The lower end of sewer pipe is connected with water tank, and the lower end of water tank is provided with outlet pipe, and the bottom of outlet pipe is communicated with three way cock; Another two mouths of pipe of three way cock are connected with water supply pipe with middle water pipe respectively; The upper end of water tank is provided with drainage pipe, and drainage pipe is connected with the inside of water tank.
2. roof ice-melt as claimed in claim 1 and snow-broth gathering-device, it is characterized in that, described top cover is provided with the second resistance wire, the outside, upper end of sewer pipe is wound with the 3rd resistance wire.
3. roof ice-melt as claimed in claim 1 and snow-broth gathering-device, it is characterized in that, the upper end of described sewer pipe is provided with funnel inlet, and sewer pipe adopts Lucite pipe.
4. roof ice-melt as claimed in claim 1 and snow-broth gathering-device, is characterized in that, described screen pack is provided with through hole.
5. roof ice-melt as claimed in claim 1 and snow-broth gathering-device, it is characterized in that, described top cover is conical structure, and top cover adopts plexiglass cover.
6. roof ice-melt as claimed in claim 1 and snow-broth gathering-device, it is characterized in that, the upper end of described sewer pipe is designed to funnel-form, light resistor R3 is loaded onto on roof, sewer pipe is wound around with the second resistance wire R2, the second resistance wire R2 and the second time relay T2, insures FU and form deicing circuit; Device of solar generating and very first time relay T1 and the first light emitting diode D1, the 3rd light emitting diode D3, battery constitute charging circuit;
External power supply is connected with the 3rd light emitting diode D3 afterwards and battery is connected in parallel, the positive terminal of battery is connected by the output of switch S with insurance FU, and the negative pole end of battery is connected with the input of the input of the first resistance wire R1 with the negative pole end of the second light emitting diode D2 and very first time relay T1 respectively; The output of very first time relay T1 is connected with the input of device of solar generating, the output of device of solar generating is connected with the positive terminal of the first light emitting diode D1, the negative pole end of the first light emitting diode D1 is connected with the input of insurance FU, the output of the first resistance wire R1, the second resistance wire R2 respectively, be connected with the input of the second time relay T2 after second resistance wire R2, light resistor R3 series connection, the output of the second time relay T2 is connected with the positive terminal of the second light emitting diode D2.
CN201520897177.6U 2015-11-11 2015-11-11 Roof ice -melt and snow water collection device Expired - Fee Related CN205171855U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520897177.6U CN205171855U (en) 2015-11-11 2015-11-11 Roof ice -melt and snow water collection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520897177.6U CN205171855U (en) 2015-11-11 2015-11-11 Roof ice -melt and snow water collection device

Publications (1)

Publication Number Publication Date
CN205171855U true CN205171855U (en) 2016-04-20

Family

ID=55735858

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520897177.6U Expired - Fee Related CN205171855U (en) 2015-11-11 2015-11-11 Roof ice -melt and snow water collection device

Country Status (1)

Country Link
CN (1) CN205171855U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106486951A (en) * 2016-11-11 2017-03-08 国家电网公司 A kind of deicing system for rural area one-storey house
CN110424772A (en) * 2019-07-02 2019-11-08 王兴杰 It is a kind of convenient for the current bus platform with snow removing deicing function
CN111576269A (en) * 2020-06-03 2020-08-25 义乌轩久铁路技术有限公司 Safety protection equipment for tunnel railway construction of snow mountain

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106486951A (en) * 2016-11-11 2017-03-08 国家电网公司 A kind of deicing system for rural area one-storey house
CN110424772A (en) * 2019-07-02 2019-11-08 王兴杰 It is a kind of convenient for the current bus platform with snow removing deicing function
CN111576269A (en) * 2020-06-03 2020-08-25 义乌轩久铁路技术有限公司 Safety protection equipment for tunnel railway construction of snow mountain
CN111576269B (en) * 2020-06-03 2020-12-22 闽清紫扬信息技术有限公司 Safety protection equipment for tunnel railway construction of snow mountain

Similar Documents

Publication Publication Date Title
CN103015517B (en) Intelligently controlled type concave urban rainwater park capable of resisting shocks
CN205171855U (en) Roof ice -melt and snow water collection device
CN207499518U (en) Urban rainwater intelligence is collected with utilizing system
CN202689160U (en) Green supplementary water and power supply system for building
CN106718364A (en) Rain water on roof is detained double-arch structure and Green Roof Intelligent irrigation system and its method
CN205742768U (en) A kind of new energy source energy-saving environment protection architecture thing
CN207419583U (en) Mountainous areas rainwater energy electricity generation system
CN202298879U (en) Sewer cover plate with auxiliary dewatering device
CN106400933A (en) Roof rainwater source regulating device based on sponge city concept and running method
CN207491718U (en) A kind of solar energy automates irrigation saving system
CN112878423A (en) Water resource utilization system in rainy and hilly areas
CN103109721A (en) Zero-energy-consumption rainwater irrigation system
CN205975261U (en) Multipurpose underground piping
CN104454302A (en) High-rise rainwater collection device
CN204965165U (en) Frivolous matrix solar energy drip irrigation system of roof greening
CN201928755U (en) Expressway greening rainwater water-saving sprinkling irrigation device based on programmable logic controller (PLC)
CN206986663U (en) A kind of electric calorifie installation for eliminating cold area's road snow mantle
CN214614320U (en) Water resource utilization system in rainy and hilly areas
CN206273911U (en) The clean storage in rain water on roof source based on sponge the idea of the city oozes device
CN211935706U (en) Rainwater wastewater collecting and recycling device
CN209227739U (en) A kind of ground water permeable device based on sponge urban construction
CN208201983U (en) A kind of roof rain water collecting utilizes system
CN207961890U (en) Roof downcomer nozzle defroster
CN206667825U (en) A kind of bus platform with sponge city function
CN204676638U (en) One can self-draining water supply pipe defroster

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160420

Termination date: 20161111