CN112554097B - Environment-friendly humidifying road isolation fence - Google Patents
Environment-friendly humidifying road isolation fence Download PDFInfo
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- CN112554097B CN112554097B CN202011285239.XA CN202011285239A CN112554097B CN 112554097 B CN112554097 B CN 112554097B CN 202011285239 A CN202011285239 A CN 202011285239A CN 112554097 B CN112554097 B CN 112554097B
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- Prior art keywords
- irrigation
- stand
- groove
- fixed
- rainwater
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
- A01G25/165—Cyclic operations, timing systems, timing valves, impulse operations
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H3/00—Applying liquids to roads or like surfaces, e.g. for dust control; Stationary flushing devices
- E01H3/04—Fixed devices, e.g. permanently- installed flushing means
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Environmental Sciences (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Soil Sciences (AREA)
- Power Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Special Spraying Apparatus (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses an environment-friendly humidifying road isolation fence which comprises a plurality of stand columns, wherein each two adjacent stand columns are jointly fixed with a bottom rod and a top rod, each group of corresponding bottom rods and top rods are jointly fixed with a plurality of support columns, the top of each stand column is fixedly provided with a pot body, the top of each top rod is provided with a plurality of water inlets in a penetrating mode, the side wall of each stand column is provided with a water storage tank communicated with the interior of the corresponding top rod in a penetrating mode, and the side wall of each stand column is provided with a plurality of water drainage tanks in a penetrating mode. Has the advantages that: according to the invention, through arranging the upright post, the ejector rod and the support post, rainwater can be partially stored during rainfall, so that rainwater resources are fully utilized, the stability of the upright post can be improved by injecting the rainwater, and the rainwater can be automatically evaporated in non-rainfall weather, so that the urban environment is protected and improved.
Description
Technical Field
The invention relates to the technical field of road facility construction, in particular to an environment-friendly humidifying type road isolation fence.
Background
The road isolation facility is a simple structure provided on a road surface to partition oncoming traffic, motor vehicles, non-motor vehicles, pedestrians, and the like. Such as partition rails, islands, piers, etc. The traffic safety facilities play an important role in guaranteeing the driving safety and lightening the potential accident degree.
At present, an isolation facility commonly used for roads is an isolation fence, can realize a good isolation function of the isolation facility and reduce the incidence rate of accidents, but does not make substantial contribution to the protection of road environment, so that the ecological environment of the roads is poor, the raised dust is more, the environmental temperature cannot be effectively regulated and controlled, the airflow energy brought by vehicles is wasted, the energy cannot be fully utilized, and therefore, an environment-friendly road isolation fence is urgently needed.
Disclosure of Invention
The invention aims to solve the problem of poor road environment in the prior art, and provides an environment-friendly humidifying type road isolation fence.
In order to achieve the purpose, the invention adopts the following technical scheme: an environment-friendly humidifying road isolation fence comprises a plurality of stand columns, wherein each two adjacent stand columns are jointly fixed with a bottom rod and an ejector rod, each group of the corresponding bottom rod and ejector rod is jointly fixed with a plurality of support columns, the top of each stand column is fixedly provided with a pot body, the top of each ejector rod is provided with a plurality of water inlets in a penetrating manner, the side wall of each stand column is provided with a water storage tank communicated with the inside of the corresponding ejector rod in a penetrating manner, the side wall of each stand column is provided with a plurality of water drainage tanks in a penetrating manner, the bottom of each pot body is provided with a waterlogging prevention hole communicated with the corresponding stand column in a penetrating manner, the side wall of each pot body is embedded with a diode and two capacitors, the side wall of each pot body is provided with a power storage tank and a pouring tank, the inner bottom of each support column is fixedly provided with a pneumatic bag, and power storage pouring equipment and pouring equipment are respectively arranged inside the power storage tank and the pouring tank, and each upright post is internally provided with a driving device.
In the above-mentioned environmental protection humidification type road isolation fence, the power storage device includes a piezoelectric block fixed at the bottom in the power storage tank, the upper end of the piezoelectric block is connected with a pressure lever through a piezoelectric spring, and the upper end of the pressure lever is fixed with a pressure difference plate.
In the above-mentioned environment-friendly humidifying road barrier, the piezoelectric block is a piezoelectric ceramic block, the upper end surface of the differential pressure plate is a plane, the lower end surface of the differential pressure plate is an arc surface, and the capacitor is a breakdown recoverable capacitor.
In foretell environmental protection humidification type road isolated column, watering equipment include with water the sealed sliding connection's of irrigation inslot wall watering head, watering spring coupling is passed through with the interior bottom of watering inslot to the bottom of watering head, watering head is "L" shape and the lower part is cambered surface upper portion for the plane.
In foretell environmental protection humidification type road isolated column, actuating device is including being fixed in the electro-magnet of bottom in the stand, the upper end of electro-magnet is connected with the clamp plate through reset spring, the upper end of clamp plate is run through and has been seted up a plurality of moisturizing holes, the sealed sliding connection that runs through in upper end of clamp plate has the conveyer pipe, conveyer pipe and the inside intercommunication of watering inslot.
Compared with the prior art, the invention has the advantages that:
1. according to the invention, through arranging the upright post, the ejector rod and the support post, rainwater can be partially stored during rainfall, so that rainwater resources are fully utilized, the stability of the upright post can be improved by injecting the rainwater, and the rainwater can be automatically evaporated in non-rainfall weather, so that the urban environment is protected and improved;
2. according to the invention, by arranging the pot body and planting green plants in the pot body, the greening degree of a city can be improved, and meanwhile, the road temperature and the dust on the road are reduced, so that the urban environment is beautified and protected;
3. in the invention, when a vehicle passes by, the pressure difference plate moves to impact the piezoelectric blocks, so that the piezoelectric blocks generate electricity and accumulate electric energy, and the electric energy is released after a certain time, so that the electromagnet attracts the pressure plate, rainwater in the upright post enters the irrigation groove through the conveying pipe, and the irrigation head reciprocates under the action of air pressure, thereby pumping water flow to irrigate, so that plants are automatically irrigated, the rainwater is fully utilized, and the manpower is reduced;
4. in the invention, the downward moving distance of the pressing plate is fixed, so that the water supplementing quantity is consistent every time, and the quantity of vehicles to and from is relatively stable on the whole, so that the generating capacity of the piezoelectric blocks is relatively stable on the whole, namely, the timed and quantitative irrigation is realized to a certain extent, the manpower and labor are reduced, the growth of plants is ensured, and the road environment is protected;
5. in the invention, when the ambient temperature rises, dichloromethane in the air pressure bag in the strut absorbs heat and is gasified, so that the air pressure bag expands, the air pressure bag pushes water flow in the strut to move upwards, the water flow can better absorb ambient heat and evaporate, the water flow is supplemented into the air, the humidity of the air is increased, the comfort level of the environment is improved, and redundant water flow entering the upright post leaks to the ground, so that the ambient temperature can be directly reduced.
Drawings
FIG. 1 is a schematic view of an environmental protection humidifying road isolation fence according to the present invention;
FIG. 2 is an enlarged view of a single column portion of the environmental protection humidifying type road isolation fence according to the present invention;
fig. 3 is a wiring circuit diagram of a piezoelectric block portion in an environmentally friendly humidifying type road barrier according to the present invention.
In the figure: the device comprises a vertical column 1, a bottom rod 2, a top rod 3, a support 4, a pot body 5, a water inlet 6, a water storage tank 7, a water drainage tank 8, a waterlogging prevention hole 9, a power storage tank 10, a pouring tank 11, a capacitor 12, a diode 13, a piezoelectric block 14, a piezoelectric spring 15, a pressure lever 16, a pressure difference plate 17, an electromagnet 18, a reset spring 19, a pressure plate 20, a water replenishing hole 21, a delivery pipe 22, a pouring spring 23, a pouring head 24 and a pressure bag 25.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Examples
Referring to fig. 1-3, an environment-friendly humidifying road isolation fence comprises a plurality of upright columns 1, wherein each two adjacent upright columns 1 are jointly fixed with a bottom rod 2 and an ejector rod 3, each group of corresponding bottom rods 2 and ejector rods 3 are jointly fixed with a plurality of support columns 4, the top of each upright column 1 is fixedly provided with a basin body 5, the top of each ejector rod 3 is provided with a plurality of water inlets 6 in a penetrating manner, the side wall of each upright column 1 is provided with a water storage tank 7 communicated with the inside of the corresponding ejector rod 3 in a penetrating manner, the side wall of each upright column 1 is provided with a plurality of water drainage tanks 8 in a penetrating manner, the bottom of each basin body 5 is provided with an anti-waterlogging hole 9 communicated with the corresponding upright column 1 in a penetrating manner, the side wall of each basin body 5 is embedded with a diode 13 and two capacitors 12, the side wall of each basin body 5 is provided with a power storage tank 10 and a pouring tank 11, the bottom of each support column 4 is fixedly provided with an air pressure bag 25, inside packing of pneumatic bag 25 has dichloromethane solution, leads to pneumatic bag 25 inflation with gasification after being heated for the rainwater of storing obtains the utilization that outflows, makes high temperature drying environment on every side obtain alleviating, holds that power groove 10 and irrigation groove 11 are inside to be provided with respectively to hold power equipment and irrigation equipment, and the inside of every stand 1 all is equipped with actuating device.
The power storage device comprises a piezoelectric block 14 fixed at the bottom in the power storage tank 10, the upper end of the piezoelectric block 14 is connected with a pressure rod 16 through a piezoelectric spring 15, and the upper end of the pressure rod 16 is fixed with a pressure difference plate 17; the piezoelectric block 14 is a piezoelectric ceramic block, the upper end face of the differential pressure plate 17 is a plane, the lower end face of the differential pressure plate 17 is an arc face, the capacitor 12 is a breakdown restorable capacitor, the piezoelectric block 14 is pressed to generate electricity to charge the two capacitors 12, the single current amount is small, damage cannot be caused, the capacitors are broken down after being fully charged, the electricity storage amount of the two capacitors 12 is obviously different, one capacitor is broken down while the other capacitor is normally operated, and after the capacitors are broken down, the other capacitor can quickly concentrate a large amount of outward discharge.
The irrigation equipment comprises an irrigation head 24 connected with the inner wall of the irrigation groove 11 in a sealing and sliding mode, the bottom of the irrigation head 24 is connected with the inner bottom of the irrigation groove 11 through an irrigation spring 23, the irrigation head 24 is L-shaped, the upper portion of the lower portion of the irrigation head is a plane, and when high-speed airflow flows through the irrigation head, pressure difference is formed, so that the irrigation head can reciprocate under the cooperation of the irrigation spring 23, and water flow is extracted to conduct automatic sprinkling irrigation.
The actuating device is including being fixed in the electro-magnet 18 of bottom in the stand 1, electro-magnet 18 is supplied power by 14 piezoelectric blocks, the upper end of electro-magnet 18 is connected with clamp plate 20 through reset spring 19, the upper end of clamp plate 20 is run through and has been seted up a plurality of moisturizing holes 21, the sealed sliding connection that runs through in upper end of clamp plate 20 has conveyer pipe 22, conveyer pipe 22 and 11 inside intercommunications in watering groove, the inside check valve that is equipped with of conveyer pipe 22, avoid 11 inside rivers refluxes in watering groove, the inside check valve that is equipped with in moisturizing hole 21, it is smooth to guarantee the moisturizing, the sealed sliding connection of inner wall of clamp plate 20 and stand 1, guarantee to promote the extrusion moisturizing.
In the invention, when raining, rainwater enters the pot body 5 and also enters the top rod 3 and each support post 4 from the water inlet 6, redundant rainwater in the top rod 3 also enters the upright post 1 from the water storage tank 7, redundant rainwater in the same pot body 5 enters the upright post 1 from the waterlogging prevention hole 9, and excessive rainwater in the upright post 1 is discharged from the drainage tank 8, so that the rainwater is effectively utilized in a centralized manner, and waterlogging of the pot body 5 caused by excessive rainwater is avoided, so that plants in the pot body 5 can grow better;
when a vehicle passes by, the air flow in the area where the pot body 5 is located is driven to flow at a high speed, so that the high-speed air flow flows through the pressure difference plate 17, the pressure difference plate 17 moves downwards rapidly under the action of air pressure, certain impact and pressure are caused on the piezoelectric block 14, the piezoelectric block 14 is electrified, the two capacitors 12 are charged, the pressure rod 16 and the piezoelectric block 14 impact for multiple times along with the increase of the vehicle, the capacitor 12 is slowly filled by the pressure rod 16, and finally the capacitor 12 is broken down at a high voltage, so that the capacitor 12 intensively and continuously discharges the electromagnet 18;
the electromagnet 18 after being electrified attracts the pressing plate 20, so that the pressing plate 20 moves downwards under the action of magnetic force, water flow at the lower part of the pressing plate 20 is extruded, the water flow enters the conveying pipe 22 under the action of pressure and then enters the irrigation groove 11 for retention, after the capacitor 12 finishes discharging, the electromagnet 18 loses magnetism, the pressing plate 20 moves upwards under the action of the elastic force of the return spring 19 for return, so that the water flow at the upper part is supplemented to the lower part through the water supplementing hole 21, and the internal environment of the upright post 1 is recovered;
when vehicles pass by, air pressure is generated up and down by the irrigation head 24, so that the irrigation head 24 is caused to reciprocate under the cooperation of the irrigation spring 23, water flow in the irrigation groove 11 enters the irrigation head 24 under the action of extrusion force and is intermittently sprayed out, automatic irrigation of plants in the pot body 5 is completed, the downward movement distance of the pressing plate 20 is fixed, so that the water supplement amount is consistent every time, the quantity of vehicles to go to and fro is relatively stable on the whole, the generated energy of the piezoelectric blocks 14 is relatively stable on the whole, namely, the timed and quantitative irrigation is realized to a certain extent, the manpower and labor are reduced, the growth of the plants is ensured, and the road environment is protected;
and when ambient temperature rose, the dichloromethane in the atmospheric pressure bag 25 in the pillar 4 will absorb heat the gasification, thereby lead to the inflation of atmospheric pressure bag 25, make atmospheric pressure bag 25 promote the rivers in the pillar 4 to move up, make rivers in the pillar 4 can supply to in the stand 1 when the temperature rose, rivers also will flow through ejector pin 3 on a relatively large scale simultaneously, make rivers can be better absorb the ambient heat and evaporate, supply in to the air, make the humidity of air increase, improve the comfort level of environment, and the unnecessary rivers that get into in the stand 1 will leak to ground, thereby can direct reduction ambient temperature.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (1)
1. The utility model provides an environmental protection humidification type road isolated column, includes a plurality of stands (1), its characterized in that, every two are adjacent stand (1) all is fixed with sill bar (2) and ejector pin (3) jointly, and every group corresponds sill bar (2) and ejector pin (3) all are fixed with a plurality of pillars (4) jointly, every the top of stand (1) all is fixed with the basin body (5), every the top of ejector pin (3) all runs through and has seted up a plurality of water inlets (6), every the lateral wall of stand (1) all runs through and sets up aqua storage tank (7) with corresponding ejector pin (3) inside intercommunication, every the lateral wall of stand (1) all runs through and has seted up a plurality of water drainage tank (8), every the bottom of the basin body (5) all runs through and sets up flood control hole (9) with corresponding stand (1) intercommunication, every the lateral wall of the basin body (5) all inlays and is equipped with diode (13) and two condenser (12), the side wall of each pot body (5) is provided with a force storage groove (10) and a pouring groove (11), the inner bottom of each support column (4) is fixedly provided with a pneumatic bag (25), the force storage groove (10) and the pouring groove (11) are internally provided with a force storage device and a pouring device respectively, and the inside of each upright column (1) is provided with a driving device;
the power storage device comprises a piezoelectric block (14) fixed at the bottom in the power storage tank (10), the upper end of the piezoelectric block (14) is connected with a pressure lever (16) through a piezoelectric spring (15), and a pressure difference plate (17) is fixed at the upper end of the pressure lever (16);
the piezoelectric block (14) is a piezoelectric ceramic block, the upper end face of the pressure difference plate (17) is a plane, the lower end face of the pressure difference plate is an arc face, and the capacitor (12) is a breakdown restorable capacitor;
the irrigation equipment comprises an irrigation head (24) in sealed sliding connection with the inner wall of the irrigation groove (11), the bottom of the irrigation head (24) is connected with the inner bottom of the irrigation groove (11) through an irrigation spring (23), the irrigation head (24) is L-shaped, the lower part of the irrigation head is an arc surface, and the upper part of the irrigation head is a plane;
the drive device is including being fixed in electro-magnet (18) of bottom in stand (1), the upper end of electro-magnet (18) is connected with clamp plate (20) through reset spring (19), the upper end of clamp plate (20) is run through and has been seted up a plurality of water holes (21) of mending, the sealed sliding connection that runs through in upper end of clamp plate (20) has conveyer pipe (22), conveyer pipe (22) and the inside intercommunication of watering groove (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011285239.XA CN112554097B (en) | 2020-11-17 | 2020-11-17 | Environment-friendly humidifying road isolation fence |
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| CN202011285239.XA CN112554097B (en) | 2020-11-17 | 2020-11-17 | Environment-friendly humidifying road isolation fence |
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| CN112554097B true CN112554097B (en) | 2022-06-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236111A (en) * | 2020-01-15 | 2020-06-05 | 李泽蒙 | Road safety isolation fence is used in sponge city construction |
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| JPH07312992A (en) * | 1994-05-23 | 1995-12-05 | Toru Mashita | Planting pot |
| AU2004208647A1 (en) * | 2003-09-03 | 2005-03-17 | Suzi Tooke | Water storage tank |
| CN207151443U (en) * | 2017-08-03 | 2018-03-30 | 吉林省华以农业科技有限公司 | A kind of wind power pneumatic formula irrigation rig |
| CN207974054U (en) * | 2018-02-05 | 2018-10-16 | 广东中京建设有限公司 | A kind of environmentally friendly guardrail of municipal traffic |
| CN208434403U (en) * | 2018-06-08 | 2019-01-29 | 浙江嘉禾建设有限公司 | A kind of sponge city planting frame |
| CN209011044U (en) * | 2018-09-04 | 2019-06-21 | 浙江秀州建设有限公司 | Municipal works guardrail for road |
| CN111734284B (en) * | 2019-09-27 | 2021-09-21 | 河南城建学院 | Light-transmitting rainproof shutter |
| CN211340575U (en) * | 2019-11-22 | 2020-08-25 | 中欧国际建工集团有限公司 | Town road safety rail guard convenient to wash |
| CN111005332B (en) * | 2019-12-25 | 2021-04-30 | 安徽大通建设工程有限公司 | Ecological guardrail for urban road |
| CN211793469U (en) * | 2020-01-02 | 2020-10-30 | 袁应帅 | Watering device is used in environmental protection gardens |
| CN111455911B (en) * | 2020-04-16 | 2021-12-28 | 山东鹏博石油科技有限公司 | Safe road isolated column |
| CN111543296B (en) * | 2020-06-03 | 2021-12-28 | 河南省生态园林绿化建设有限公司 | Magnetic irrigation device for green plant cultivation frame |
| CN111657001A (en) * | 2020-06-23 | 2020-09-15 | 杨谁喜 | Ecological corridor vegetation wall with automatic watering function |
| CN111616036A (en) * | 2020-06-25 | 2020-09-04 | 徐纯 | Viaduct induction type irrigation system cultivated in a pot for municipal construction |
| CN111731722A (en) * | 2020-06-30 | 2020-10-02 | 郭卫丽 | Safe and environment-friendly garbage transport vehicle |
| CN111764323A (en) * | 2020-07-13 | 2020-10-13 | 彭利芳 | A multi-functional road guardrail for municipal construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236111A (en) * | 2020-01-15 | 2020-06-05 | 李泽蒙 | Road safety isolation fence is used in sponge city construction |
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