阅读说明：本技术 道路路面定时自动清洗及污水回收再利用系统 (Road pavement timing automatic cleaning and sewage recycling system ) 是由 张亚辉 胡鑫 于 2021-08-16 设计创作，主要内容包括：本发明公开了一种道路路面定时自动清洗及污水回收再利用系统,包括：沉淀池,设置于道路旁,用于收集污水并沉淀澄清；隔离护栏,设置于道路中间,将道路分割成左、右两行车道,隔离护栏内具有一喷淋管路,喷淋管路上具有沿宽度方向向两行车道的路面喷水的喷洒组件；及污水收集槽,沿道路的长度方向开设于两行车道的外边沿处,其中,污水收集槽与隔离护栏适配对应,用于收集喷洒组件喷淋清洗路面产生的污水、并将污水排入沉淀池内。本发明优点在于整个系统安装布置简单,布置完成后不会影响道路的正常通行,实现对道路路面的定时自动冲刷,无需再使用清洗车辆或配备较多人力进行道路清洗,并且能够有效避免路面积水。(The invention discloses a road pavement timing automatic cleaning and sewage recycling system, comprising: the sedimentation tank is arranged beside the road and used for collecting sewage, settling and clarifying the sewage; the isolation guardrail is arranged in the middle of the road and divides the road into a left lane and a right lane, a spraying pipeline is arranged in the isolation guardrail, and a spraying component which sprays water to the road surfaces of the two lanes along the width direction is arranged on the spraying pipeline; and the sewage collecting tank is arranged at the outer edge of the two lanes along the length direction of the road, corresponds to the isolation guardrail in a matching manner, and is used for collecting sewage generated by spraying and cleaning a road surface by the spraying assembly and discharging the sewage into the sedimentation tank. The invention has the advantages that the whole system is simple to install and arrange, the normal traffic of the road is not influenced after the arrangement is finished, the regular automatic washing of the road surface is realized, the road cleaning by using cleaning vehicles or using more manpower is not needed, and the accumulated water on the road surface can be effectively avoided.)

1. The utility model provides a road surface is automatic cleaning and sewage recovery system of recycling regularly which characterized in that: comprises that

The sedimentation tank is arranged beside the road and used for collecting sewage, settling and clarifying the sewage, and a protective cover plate is movably buckled at the top of the sedimentation tank;

the isolation guardrail is arranged in the middle of the road and divides the road into a left lane and a right lane, a spraying pipeline is arranged in the isolation guardrail, and a spraying component for spraying water to the road surfaces of the two lanes along the width direction is arranged on the spraying pipeline; and

and the sewage collecting tanks are arranged at the outer edges of the two lanes along the length direction of the road, correspond to the isolation guardrails in an adaptive mode and are used for collecting sewage generated by spraying and cleaning a road surface by the spraying assembly and discharging the sewage into the sedimentation tank.

2. The system for timed automatic cleaning and sewage recycling according to claim 1, characterized in that: the spraying pipeline positioned in the isolation guardrail is communicated with the upper part of the side wall of the sedimentation tank through a water conveying pipeline, and the water conveying pipeline is provided with a first suction pump with a timing control module and used for sucking the clear liquid on the upper part of the sedimentation tank.

3. The system for timed automatic cleaning and sewage recycling according to claim 2, characterized in that: and a water supply pipeline externally connected with a water supply source is arranged on the side wall of the sedimentation tank, and a water outlet of the water supply pipeline is communicated with the side wall of the sedimentation tank above a water inlet of the water delivery pipeline.

4. The system for timed automatic cleaning and sewage recycling according to claim 2, characterized in that: at least one auxiliary water collecting tank is communicated with one side of the sedimentation tank through a drainage pipeline, and a water inlet of the drainage pipeline is communicated with the side wall of the sedimentation tank above the water inlet of the water conveying pipeline and is used for collecting redundant clear liquid in the sedimentation tank; and a return water pipeline communicated with the sedimentation tank is arranged at the position, close to the bottom, of the auxiliary water collecting tank, and an electric control valve is arranged on the return water pipeline.

5. The system for timed automatic cleaning and sewage recycling according to claim 2, characterized in that: the sewage collecting tank is a tank body with a strip-shaped structure, and a liquid leakage baffle plate for separating and blocking garbage sundries is covered on a notch at the top of the sewage collecting tank; one end of the sewage collecting tank is provided with a drainage pipeline communicated with the sedimentation tank near the tank bottom, a water outlet of the drainage pipeline is communicated with the side wall of the sedimentation tank above the water inlet of the water pipeline, and the tank bottom of the sewage collecting tank is of an inclined surface structure which inclines downwards towards the water inlet of the drainage pipeline.

6. The system for timed automatic cleaning and sewage recycling according to claim 5, characterized in that: and a second suction pump with a timing control module is arranged on the water discharge pipeline.

7. The system for timed automatic cleaning and sewage recycling according to claim 2, characterized in that: isolation barrier includes support post and the connection fence body, wherein, support post by a counter weight base and one link firmly perpendicularly in counter weight base top center department indulges the pillar and constitutes, the connection fence body by an entablature, a bottom end rail and interval arrange in the entablature with a plurality of longitudinal joint muscle between the bottom end rail constitute, be located two of both ends department be provided with on the longitudinal joint muscle with the connection otic placode that the pillar spiro union linked firmly indulges.

8. The system of claim 7, which is characterized in that: the top end of the longitudinal strut is provided with a light reflecting block, and the side wall of the longitudinal strut adjacent to the left lane and the right lane is provided with a vertical light turning strip.

9. The system of claim 7, which is characterized in that: the spraying pipeline comprises a spraying main pipe horizontally penetrating through the lower cross beam and a spraying connecting pipe horizontally penetrating through the longitudinal support, and the spraying main pipe is communicated with the spraying connecting pipe in a sealing manner through a connecting flange arranged at the end part of the lower cross beam; a plurality of pairs of inclined nozzles which penetrate out of the side wall of the lower cross beam in a sealing manner are arranged on the main spray pipe at intervals along the length direction, the two inclined nozzles of each pair are mutually symmetrical, and the nozzles of the inclined nozzles face the roadway surface on the left side and the right side of the lower cross beam respectively; the spraying connecting pipe is communicated with a plurality of pairs of horizontal nozzles which penetrate out from the position, close to the bottom, of the side wall of the counterweight base in a sealing mode, each pair of horizontal nozzles are symmetrical to each other, and the nozzles of the horizontal nozzles face to the traffic lanes on the left side and the right side of the counterweight base respectively.

10. The system for timed automatic cleaning and sewage recycling according to claim 2, characterized in that: a plurality of miston sprayers for irrigating plants are arranged in flower beds on two sides of the road at intervals, the miston sprayers are communicated with the side wall of the sedimentation tank through miston system pipelines, water inlets of the miston system pipelines are flush with water inlets of the water conveying pipelines, a third suction pump with a timing control module is arranged on the miston system pipelines, and a filtering device is arranged on the miston system pipelines between the third suction pump and the sedimentation tank.

Technical Field

The invention relates to the technical field of road environmental protection and cleaning, in particular to a road pavement timing automatic cleaning and sewage recycling system.

Background

In the current society, urban road pollution is serious, and road pavement cleaning becomes an important project for urban environmental sanitation management. The existing urban road cleaning is carried out by driving a cleaning vehicle by sanitation workers to wash and clean, so that the cleaning efficiency is low and a large amount of manpower is consumed; the cleaned sewage can be directly accumulated at a low-lying position of the road surface or flows into an underground sewage pipe network, so that water resources are wasted; in addition, the urban traffic is greatly influenced in the process of cleaning vehicles working on roads, so that the vehicles are jammed, more automobile tail gas is discharged, and the atmospheric environment is polluted.

Disclosure of Invention

The invention aims to provide a system for automatically cleaning and recycling sewage on road surfaces at regular time.

In order to achieve the purpose, the invention can adopt the following technical scheme:

the invention relates to a road pavement timing automatic cleaning and sewage recycling system, which comprises:

the sedimentation tank is arranged beside the road and used for collecting sewage, settling and clarifying the sewage, and a protective cover plate is movably buckled at the top of the sedimentation tank;

the isolation guardrail is arranged in the middle of the road and divides the road into a left lane and a right lane, a spraying pipeline is arranged in the isolation guardrail, and a spraying component for spraying water to the road surfaces of the two lanes along the width direction is arranged on the spraying pipeline; and

and the sewage collecting tanks are arranged at the outer edges of the two lanes along the length direction of the road, correspond to the isolation guardrails in an adaptive mode and are used for collecting sewage generated by spraying and cleaning a road surface by the spraying assembly and discharging the sewage into the sedimentation tank.

Furthermore, the spraying pipeline positioned in the isolation guardrail is communicated with the upper part of the side wall of the sedimentation tank through a water conveying pipeline, and the water conveying pipeline is provided with a first suction pump with a timing control module and used for sucking the clear liquid on the upper part of the sedimentation tank.

Furthermore, a water supply pipeline externally connected with a water supply source is arranged on the side wall of the sedimentation tank, and a water outlet of the water supply pipeline is communicated with the side wall of the sedimentation tank above a water inlet of the water delivery pipeline.

Furthermore, one side of the sedimentation tank is communicated with at least one auxiliary water collecting tank through a drainage pipeline, and a water inlet of the drainage pipeline is communicated with the side wall of the sedimentation tank above the water inlet of the water conveying pipeline and is used for collecting redundant clear liquid in the sedimentation tank; and a return water pipeline communicated with the sedimentation tank is arranged at the position, close to the bottom, of the auxiliary water collecting tank, and an electric control valve is arranged on the return water pipeline.

Further, the sewage collecting tank is a tank body with a strip-shaped structure, and a liquid leakage partition plate for separating and blocking garbage sundries is covered on a notch at the top of the sewage collecting tank; a drainage pipeline communicated with the sedimentation tank is arranged at one end of the sewage collecting tank close to the tank bottom, and the tank bottom of the sewage collecting tank is of an inclined surface structure inclining downwards towards the water inlet of the drainage pipeline; and the water outlet of the drainage pipeline is communicated with the side wall of the sedimentation tank above the water inlet of the water pipeline, and a second suction pump with a timing control module is arranged on the drainage pipeline.

Furthermore, the isolation guardrail comprises a support upright post and a connecting guardrail body, wherein the support upright post consists of a counterweight base and a longitudinal pillar which is vertically and fixedly connected with the center of the top of the counterweight base, a light reflecting block is arranged at the top end of the longitudinal pillar, and vertical light turning strips are arranged on the side walls of the longitudinal pillars adjacent to the left lane and the right lane; the connecting fence body is composed of an upper cross beam, a lower cross beam and a plurality of longitudinal connecting ribs arranged at intervals between the upper cross beam and the lower cross beam, and two connecting lug plates fixedly connected with the longitudinal struts in a threaded manner are arranged on the longitudinal connecting ribs at two ends.

Furthermore, the spraying pipeline comprises a spraying main pipe horizontally penetrating through the lower cross beam and a spraying connecting pipe horizontally penetrating through the longitudinal support, and the spraying main pipe is communicated with the spraying connecting pipe in a sealing manner through a connecting flange arranged at the end part of the lower cross beam; a plurality of pairs of inclined nozzles which penetrate out of the side wall of the lower cross beam in a sealing manner are arranged on the main spray pipe at intervals along the length direction, the two inclined nozzles of each pair are mutually symmetrical, and the nozzles of the inclined nozzles face the roadway surface on the left side and the right side of the lower cross beam respectively; the spraying connecting pipe is communicated with a plurality of pairs of horizontal nozzles which penetrate out from the position, close to the bottom, of the side wall of the counterweight base in a sealing mode, each pair of horizontal nozzles are symmetrical to each other, and the nozzles of the horizontal nozzles face to the traffic lanes on the left side and the right side of the counterweight base respectively.

Furthermore, a plurality of fog-forest spray heads used for irrigating plants are arranged in the flower bed on two sides of the road at intervals, the fog-forest spray heads are communicated with the side wall of the sedimentation tank through a fog-forest system pipeline, a water inlet of the fog-forest system pipeline is flush with a water inlet of the water conveying pipeline, a third suction pump with a timing control module is arranged on the fog-forest system pipeline, and a filtering device is arranged on the fog-forest system pipeline between the third suction pump and the sedimentation tank.

The invention has the advantages that the whole system is simple to install and arrange, the normal traffic of the road is not influenced after the arrangement is finished, the road pavement is automatically flushed at regular time, cleaning vehicles or more manpower is not required to be used for cleaning the road, the cleaning efficiency is improved, the manpower is reduced, the labor intensity of sanitation workers in cleaning the road surface is greatly reduced, traffic jam caused by cleaning the vehicles slowly running is avoided, the tail gas emission of the vehicles is reduced, and the environmental pollution is reduced; in addition, the sewage that erodees the road surface and produce can flow into the sedimentation tank through the sewage collecting vat, store up and deposit the clarification in the sedimentation tank, and the supernatant after the clarification can also be utilized once more, supplies with the spraying assembly on the isolation barrier and carries out the road surface washing, the water economy resource to can effectively avoid surface ponding.

Drawings

Fig. 1 is a schematic plan view of the present invention.

Fig. 2 is a sectional view taken along line a-a in fig. 1.

Fig. 3 is a sectional view taken along line B-B in fig. 1.

Fig. 4 is an exploded view of the isolation barrier of fig. 1.

Fig. 5 is a left side view of the support column of fig. 4.

Fig. 6 is a left side view of the connecting fence of fig. 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

As shown in fig. 1-4, the system for automatically cleaning road surface at regular time and recycling sewage comprises a sedimentation tank 1, an isolation guardrail 2 and a sewage collection tank 3.

The sedimentation tank 1 is arranged beside a road and used for collecting sewage and standing the sewage to precipitate impurities, and clear liquid is formed at the upper part of the sedimentation tank; in order to practice thrift subaerial space resources, this sedimentation tank 1 can directly bury underground in the other ground of road, the top that needs to guarantee sedimentation tank 1 this moment flushes with ground or slightly is higher than with ground to in 1 top activity of sedimentation tank detain unification protective cover board 4 can, this protective cover board 4 can prevent that the pedestrian from falling into sedimentation tank 1 carelessly in, can also open when needing simultaneously, clear away sedimentary impurity, mud etc. in the sedimentation tank 1.

The isolation guardrail 2 is arranged in the middle of a road, has the same function of isolating and dividing the road as the existing road guardrail, and can divide the road into a left lane and a right lane which are opposite in direction; in addition, a spraying pipeline 5 penetrating through the whole isolation guardrail 2 is further arranged in the isolation guardrail 2, and a spraying assembly 6 for spraying water to the road surfaces of the two lanes along the width direction of the road is arranged on the spraying pipeline 5. The spraying pipeline 5 positioned in the isolation guardrail 2 is communicated with the upper part of the side wall of the sedimentation tank 1 through a water conveying pipeline 7, the water conveying pipeline 7 can be buried underground, and a first suction pump 8 with a timing control module is arranged on the water conveying pipeline 7 and used for sucking clear liquid on the upper part of the sedimentation tank 1 and spraying the clear liquid to the two lanes through the spraying assembly 6 so as to flush the lanes; certainly, in the great daytime of traffic flow, the timing control module can not control first suction pump 8 to open and carry out the road surface and wash, and accessible timing control module controls first suction pump 8 and carries out the road cleaning in every morning four or five, can reduce the influence to the vehicle that traveles as far as like this, can promote the abluent effect in road surface simultaneously again.

The length direction of the two sewage collecting tanks 3 is consistent with the length direction of the road, and the two sewage collecting tanks are respectively arranged at the outer edges of the two lanes and used for collecting sewage generated when the spraying component 6 sprays and cleans the road surface and discharging the sewage into the sedimentation tank 1; in addition, sewage collecting vat 3 should correspond with isolation barrier 2 adaptation, sets up how long isolation barrier 2 on the road promptly, just need the outer border department that corresponds in two lines of lanes set up with isolation barrier 2 length assorted sewage collecting vat 3.

Specifically, as shown in fig. 4-6, the isolation barrier 2 includes a support column and a connection fence, wherein the support column is composed of a counterweight base 2.1 and a longitudinal pillar 2.2 vertically connected to the center of the top of the counterweight base 2.1, the connection fence is composed of an upper beam 2.3, a lower beam 2.4 and a plurality of longitudinal connection ribs 2.5 arranged between the upper beam 2.3 and the lower beam 2.4 at intervals, and two longitudinal connection ribs 2.5 at two ends are provided with connection ear plates 2.6 fixedly connected with the longitudinal pillar 2.2 by screw connection; therefore, the length of the isolation guardrail 2 can be set according to the requirement, namely, the support upright post, the connecting guardrail body and the support upright post are sequentially spliced. In addition, a positioning through hole for penetrating a fixing bolt can be longitudinally formed in the counterweight base, a light reflecting block 2.7 is arranged at the top end of the longitudinal pillar 2.2, and a vertical light turning strip 2.8 is arranged on the side wall of the longitudinal pillar 2.2 adjacent to the left lane and the right lane; when the vehicle car lamp that can make travel night through reflection of light piece 2.7 and vertical reflection of light strip 2.8 shines and establishes above that, forms the higher reflection of light of luminance, is convenient for the driver to see the position of isolation guardrail 2 clearly, and through passing expansion bolts the location perforation on counter weight base 2.1 and fix on road subaerial, can also further fix isolation guardrail 2 to avoid isolation guardrail 2 to receive external force influence and crooked or empty.

Further, the spray pipeline 5 arranged in the isolation guardrail 2 should include a main spray pipe 5.1 horizontally penetrating the lower cross beam 2.4 and a connecting spray pipe 5.2 horizontally penetrating the longitudinal support 2.2, the main spray pipe 5.1 is hermetically communicated with the connecting spray pipe 5.2 through a connecting flange 5.3 arranged at the end of the lower cross beam 2.4, that is, a first flange body fixedly connected with the lower cross beam 2.4 is arranged at the end of the main spray pipe 5.1, a second flange body fixedly connected with the outer wall of the longitudinal support 2.2 is arranged at the end of the connecting spray pipe 5.2, the first flange body and the second flange body are mutually matched and connected to form the connecting flange 5.3, so that the main spray pipe 5.1 and the connecting spray pipe 5.2 are hermetically communicated in a plug-in shape; of course, a sealing gasket can be arranged between the first flange body and the second flange body, so that the sealing performance of the connection between the main spray pipe 5.1 and the connecting spray pipe 5.2 is improved.

Further, the spraying assembly 6 is arranged on the spraying main pipe 5.1 and the spraying connecting pipe 5.2, specifically, a plurality of pairs of inclined nozzles 6.1 which penetrate through the side wall of the lower cross beam 2.4 in a sealing manner are arranged on the spraying main pipe 5.1 at intervals along the length direction, a plurality of pairs of horizontal nozzles 6.2 which penetrate through the side wall of the counterweight base 2.1 in a sealing manner and are close to the bottom are communicated on the spraying connecting pipe 5.2, and the inclined nozzles 6.1 and the horizontal nozzles 6.2 jointly form the spraying assembly 6; the two inclined nozzles 6.1 of each pair are symmetrical to each other, the nozzles of the two inclined nozzles are respectively inclined downwards and face towards the roadway surface on the left side and the right side of the lower cross beam 2.4, and the downward inclination angle alpha of the inclined nozzles 6.1 is 20-40 degrees (as shown in fig. 6); the two horizontal nozzles 6.2 of each pair are symmetrical, and the nozzles of the horizontal nozzles face to the traffic lanes on the left side and the right side of the counterweight base 2.1 respectively.

Further, as shown in fig. 3, the sewage collecting tank 3 is a tank body with a strip structure, a liquid leakage baffle plate 9 for separating and blocking garbage impurities is covered on a notch at the top of the sewage collecting tank, the liquid leakage baffle plate 9 can adopt a common metal grid plate on the market, the support strength of the metal grid plate is high, when blocking the garbage impurities, the sewage can be ensured to flow into the sewage collecting tank 3, and of course, the protective cover plate 4 on the sedimentation tank 1 can also adopt a metal grid plate with the same structure as the liquid leakage baffle plate 9, so that rainwater can be effectively collected in rainy days, and the garbage impurities can be prevented from falling into the sedimentation tank 1; a drainage pipeline 10 communicated with the sedimentation tank 1 is arranged at one end of the sewage collecting tank 3 close to the tank bottom, the drainage pipeline 10 can also be buried underground, and a water outlet of the drainage pipeline 10 is communicated with the side wall of the sedimentation tank 1 above a water inlet of the water conveying pipeline 7; in addition, the tank bottom of the sewage collecting tank 3 should be an inclined plane structure inclined downwards towards the water inlet of the drainage pipeline 10, and the second suction pump 11 with a timing control module can be arranged on the drainage pipeline 10 to effectively discharge sewage, so that accumulated water in the sewage collecting tank 3 can be sucked away, and sewage remained in the sewage collecting tank 3 is avoided.

Furthermore, when the sedimentation tank 1 collects sewage, it is difficult to collect water which can supply water to the water conveying pipeline 7 at one time, so a water supply pipeline 12 which is externally connected with a water supply source is also required to be arranged on the side wall of the sedimentation tank 1, and a water outlet of the water supply pipeline 12 is communicated with the side wall of the sedimentation tank 1 above a water inlet of the water conveying pipeline 7, so that water can be injected into the sedimentation tank 1 through the water supply pipeline 12 when the road surface needs to be washed in the prior period, and the water supply of the water conveying pipeline 7 is met; at this time, a liquid level sensor 13 (as shown in fig. 2) may be disposed on the inner wall of the sedimentation tank 1, the liquid level sensor 13 is located on the side wall of the sedimentation tank 1 above the water inlet of the water pipe 7, and when the water pipe 7 injects water into the sedimentation tank 1 until the water level rises to the liquid level sensor 13, the liquid level sensor 13 sends an alarm signal, so that the water supply of the water supply pipe 12 can be stopped by manual control or automatic control. Of course, the water supply pipeline 12 can also be directly communicated with the water delivery pipeline 7, so that the water delivery pipeline 7 is directly supplied with water to finish the spray washing of the road, and at this time, the liquid level sensor 13 is not required to be arranged on the side wall of the sedimentation tank 1.

Furthermore, in order to prevent the water in the sedimentation tank 1 from overflowing outwards when being full, one side of the sedimentation tank 1 can be communicated with at least one auxiliary water collecting tank 15 through a drainage pipeline 14, a water inlet of the drainage pipeline 14 is communicated with the side wall of the sedimentation tank 1 above a water inlet of the water conveying pipeline 7, and on the premise of meeting the requirement of supplying water to the water conveying pipeline 7, redundant clear liquid in the sedimentation tank 1 can be collected; at the moment, a water return pipeline 16 communicated with the sedimentation tank 1 is further arranged at the position, close to the bottom, of the auxiliary water collecting tank 15, an electric control valve 17 is arranged on the water return pipeline 16, and water stored in the auxiliary water collecting tank 15 is discharged back to the sedimentation tank 1 again by opening the electric control valve 17.

In addition, a plurality of mistsen nozzles 18 for irrigating plants can be arranged in the flower bed at two sides of the road at intervals, the mistsen nozzles 18 are communicated with the side wall of the sedimentation tank 1 through a mistsen system pipeline 19, and a water inlet of the mistsen system pipeline 19 is flush with a water inlet of the water conveying pipeline 7 so as to ensure that clear liquid after sedimentation in the sedimentation tank 1 flows into the mistsen system pipeline 19; the third suction pump 20 with the timing control module is arranged on the miston system pipeline 19, and the miston spray head 18 has higher requirement on water quality, so the miston system pipeline 19 between the third suction pump 20 and the sedimentation tank 1 can be provided with the filter device 21, the filter device 21 can be composed of a large-flow filter core which can be easily purchased in the market, and can also be composed of a silt filter screen plate which can easily filter impurities such as silt, and the silt filter screen plate is at least arranged in two layers at intervals, the mesh number of the first layer of screen plate close to the sedimentation tank 1 is 60 meshes, the mesh number of the second layer of screen plate close to the third suction pump 20 is 100 meshes, thereby not only ensuring the filtration of the silt, but also not influencing the water pumping of the third suction pump 20.

When the system is used, the system is arranged on a road, then when the road surface is sprayed and washed for the first time, the water supply pipeline 12 is started to inject water into the sedimentation tank 1, and when the water level in the sedimentation tank 1 rises to the position of the liquid level sensor 13 above the water inlet of the water transmission pipeline 7, the liquid level sensor 13 gives an alarm to control the water supply pipeline 12 to stop supplying water; at the time of 4 and 5 o' clock at night, the first suction pump 8 can be automatically controlled to work, and the clean water in the sedimentation tank 1 is sucked and supplied to the spraying assembly 6, so that the road is washed.

During the washing process, soil, garbage and sundries on the road surface can be washed to the outer edges of the left lane and the right lane, at the moment, sewage can be collected by the sewage collecting tanks 3 arranged at the outer edges of the left lane and the right lane and flows to the drainage pipeline 10, and garbage, sundries and the like with larger volume can be blocked above the sewage collecting tanks 3 by the liquid leakage partition plates 9 to wait for a sanitation worker to clean the garbage in the morning; meanwhile, sewage flowing into the drainage pipeline 10 through the sewage collecting tank 3 is sucked into the sedimentation tank 1 by the second suction pump 11 and accumulated, small particle impurities in the sewage can naturally settle to the bottom of the sedimentation tank 1 in the process of accumulating the sewage in the sedimentation tank 1, and the clarifying liquid can be positioned at the upper part of the sedimentation tank 1, and at the moment, when the road is washed for the second time, the water conveying pipeline 7 can directly suck the clarifying liquid in the sedimentation tank 1, and sludge, gravel, impurities and the like at the bottom of the sedimentation tank can not be sucked.

In addition, in daytime, the third suction pump 20 can be controlled to suck the clear liquid in the sedimentation tank 1, the clear liquid is filtered again by the filter device 21 and then is supplied to the mistsen nozzles 18, and the mistsen nozzles 18 spray water to water plants in the flower beds on two sides of the road.