Sampling device and method for leaf pollution of vegetation on both sides of highway

Abstract

The present invention belongs to the technical field of dust pollution and pollution monitoring. A sampling device for vegetation leaf pollution on both sides of a highway, including a spray assembly and a spray liquid collection assembly; the spray assembly includes a spray bracket, a spray head, a water supply pipe and a water supply unit, the spray head is arranged on the upper part of the spray bracket and is arranged corresponding to the crown of the vegetation; the water supply pipe is connected to the spray head; the water supply unit is used to provide power and supply water to the spray head through the water supply pipe; the spray liquid collection assembly includes a collector and a sampling bottle, the collector is arranged around the roots of the vegetation; the sampling bottle is connected to the collector, and samples the collected spray liquid. A sampling method for vegetation leaf pollution on both sides of a highway is also disclosed. The structural design of this application is reasonable, and can effectively realize the collection and classification of pollutants in different areas of the vegetation crown, accurately analyze the pollution components, pollution characteristics and pollution range on the vegetation leaf surface, and provide a scientific basis for preventing pollution caused by road transportation.

Description

Technical Field

[0001] The invention belongs to the technical field of dust pollution and pollution monitoring, and particularly relates to a device and method for sampling leaf pollution of vegetation on both sides of a highway. Background Art

[0002] With economic development, expressways and provincial road networks are becoming increasingly dense. To beautify the landscape along the roadsides, a large number of green plants are planted, including trees and shrubs, as well as extensive farmland and water networks. Road dust contains materials scattered on the road during road transportation, automobile exhaust particles that fall to the ground, leaked fuel, and tire wear, making the pollutant components in road dust complex. Under the influence of driving cars and wind, microparticles discharged by cars, microparticles from tire wear, and particles suspended in the air adhere to the vegetation leaves on both sides of the road. Under the drench of rainfall, pollutants attached to the vegetation leaves fall to the ground with rainwater, entering the soil and contaminating it. Over time, these pollutants enter the groundwater, thereby contaminating it. How to accurately analyze the pollutant components, pollution characteristics, and pollution range on the vegetation leaves will provide a scientific basis for preventing pollution caused by road transportation. Summary of the Invention

[0003] The purpose of the present invention is to address the above-mentioned problems and shortcomings and to provide a sampling device and method for vegetation leaf pollution on both sides of a highway. The device and method have a reasonable structural design and can effectively collect and classify pollutants in different areas of the vegetation crown, accurately analyze the pollution components, pollution characteristics and pollution range on the vegetation leaf surface, and provide a scientific basis for preventing pollution caused by road transportation.

[0004] In order to achieve the above purpose, the technical solutions adopted are:

[0005] A sampling device for leaf pollution of vegetation on both sides of a highway comprises a spray assembly and a spray liquid collection assembly; the spray assembly comprises:

[0006] Spray bracket;

[0007] A sprinkler head is provided on the upper portion of the sprinkler support and is arranged corresponding to the crown of the plant;

[0008] a water supply pipe connected to the sprinkler head; and

[0009] A water supply unit, which is used to provide power and supply water to the sprinkler head through a water supply pipe;

[0010] The spray liquid collecting assembly comprises:

[0011] A collector is disposed around the roots of vegetation; and

[0012] A sampling bottle is connected to the collector and is used to sample the collected spray liquid.

[0013] According to the sampling device for leaf pollution of vegetation on both sides of a highway of the present invention, preferably, the spray bracket includes:

[0014] A support, which is fixed on the ground;

[0015] A fixed column, which is fixed on the support;

[0016] a telescopic pole, which is slidably mounted on the fixed column, and a locking portion is provided between the fixed column and the telescopic pole, the locking portion being used to fix the positions of the fixed column and the telescopic pole; and

[0017] A horizontal rod is arranged on the top of the telescopic vertical rod.

[0018] According to the sampling device for leaf pollution of vegetation on both sides of the highway of the present invention, preferably, it also includes a spray rod, which is fixedly connected to the horizontal rod, the spray head is assembled on the spray rod, and the lower end of the spray rod is connected to the water supply pipe.

[0019] According to the sampling device for leaf pollution of vegetation on both sides of the highway of the present invention, preferably, a pressure control valve is provided on the water supply pipe, the water supply pipe is connected to the spray rod through a quick-connect joint, a diagonal support rod is provided between the horizontal rod and the telescopic vertical rod, and a counterweight block is provided at the end of the horizontal rod away from the vegetation.

[0020] According to the sampling device for leaf pollution of vegetation on both sides of a highway of the present invention, preferably, the water supply unit comprises:

[0021] water supply tank;

[0022] The water pump, water supply tank, water pump and water supply pipe are connected in sequence;

[0023] a power source for providing power; and

[0024] The controller is used to control the start and stop of the water pump and the flow rate.

[0025] According to the sampling device for leaf pollution of vegetation on both sides of a highway of the present invention, preferably, the collector comprises:

[0026] A liquid collecting cover shell, wherein the liquid collecting cover shell is in an inverted cone shape;

[0027] a liquid collecting bracket, which is arranged at the bottom of the liquid collecting housing and supported on the ground;

[0028] a partition plate, which is arranged on the upper part of the liquid collecting housing, and the partition plate divides the liquid collecting housing into a plurality of independent liquid collecting chambers; and

[0029] A liquid flow tube is provided at the lower end of each liquid collecting cavity, and the lower portion of the liquid flow tube extends into the corresponding sampling bottle.

[0030] According to the sampling device for vegetation leaf pollution on both sides of the highway of the present invention, preferably, the liquid collecting chambers are distributed in a stepped ring shape, or the liquid collecting chambers are arranged in a matrix shape.

[0031] According to the sampling device for vegetation leaf surface pollution on both sides of the highway of the present invention, preferably, a sealing ring is provided between the middle portion of the liquid collecting cover and the roots of the vegetation.

[0032] A method for sampling leaf surface pollution of vegetation on both sides of a highway, using the above-mentioned sampling device for sampling leaf surface pollution of vegetation on both sides of a highway, specifically comprising the following steps:

[0033] Data collection: Collect vegetation parameters and determine the size and installation location of the spray components and spray liquid collection components;

[0034] Equipment assembly and debugging: Assemble and fix the components of the sampling device for vegetation leaf pollution on both sides of the highway, and conduct connection and performance debugging between the various components of the equipment;

[0035] Sampling: Start the spray assembly to spray the crown of the plant, and at the same time the spray liquid collection assembly at the bottom collects and samples the spray liquid;

[0036] Submit for inspection and component analysis.

[0037] During the sampling step, the collector is sampled in different areas, and the number of sampling bottles at each level ranges from 3 to 15. During the spraying process, the capacity of each sampling bottle is observed. When a sampling bottle is filled, a new sampling bottle is replaced until the sampling is completed.

[0038] Before spraying, the liquid collecting cover and sampling bottle need to be cleaned; after spraying, the liquid collecting cover also needs to be cleaned, and the solution during the cleaning process needs to be sampled until the cleaning is completed.

[0039] The beneficial effects achieved by adopting the above technical solution are:

[0040] The overall structural design of this application is reasonable, which can effectively realize the collection and classification of pollutants in different areas of the vegetation crown, accurately analyze the pollution components, pollution characteristics and pollution range on the vegetation leaf surface, and provide a scientific basis for preventing pollution caused by road transportation.

[0041] The present application designs a spray assembly that is convenient for installation and debugging, can perform height adjustment for vegetation at different heights, and can adjust the spray range for plant crowns of different sizes, thereby ensuring that the collected spray liquid can intuitively reflect the pollution levels and pollutants in different areas, providing a basis for the reliability of the parameters; the structural design of the spray liquid collection assembly of the present application can realize the regional collection of pollutants in different areas, thereby enabling a more accurate and refined analysis of the pollution conditions at various positions of the plant crown, which can not only evaluate the overall pollution level, but also evaluate and analyze the pollution level at different points in the spatial range.

[0042] This application utilizes a multi-component assembly structure for easy transportation and assembly. The telescopic adjustment structure of the spray bracket and the structural design of the horizontal rod can adapt to changes in vegetation height. The addition of a spray head can ensure the spraying range, providing a wide range of applications. To improve structural stability, a counterweight is provided to avoid the problem of poor structural stability of the spray bracket during spraying and prevent swaying due to wind. The spray bracket is driven into the ground via anchor cables, which can also be used for lateral support, increasing its structural stability.

[0043] This application also uses a controller to regulate the pressure and flow of the water supply, ensuring that the pressure is stable and controllable during the spraying process, thereby improving the spraying effect.

[0044] The design of the collector of this application greatly improves its practicality and reliability. The conical design makes it easier to collect the spray liquid and also facilitates regional graded collection, providing a good foundation for subsequent data statistics and analysis. The liquid collection bracket of this application can be adjusted in height, so that the liquid collection cover can be telescopically expanded, so that its collection range can be adjusted according to actual conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. The drawings are only used to illustrate some embodiments of the present invention, but not to limit all embodiments of the present invention thereto.

[0046] Figure 1 Schematic diagram of the structure of a sampling device for vegetation leaf pollution on both sides of a highway according to an embodiment of the present invention.

[0047] Serial number in the picture:

[0048] 101 is a support, 102 is a fixed column, 103 is a telescopic pole, 104 is a horizontal rod, 105 is a locking part, and 106 is a counterweight;

[0049] 201 is the water supply pipe, 202 is the sprinkler head, 203 is the water supply tank, 204 is the water pump, 205 is the power source, 206 is the pressure gauge, 207 is the flow meter, 208 is the data line, 209 is the start button, 210 is the stop button, 211 is the power indicator, 212 is the sprinkler rod, and 213 is the flow display meter;

[0050] 301 is a liquid collecting housing, 302 is a liquid collecting bracket, 303 is a partition plate, 304 is a liquid flow tube, 305 is a sampling bottle, and 306 is a sealing ring;

[0051] 500 for vegetation;

[0052] 601 is an anchor bolt. DETAILED DESCRIPTION

[0053] The following will be combined with the accompanying drawings of specific embodiments of the present invention to clearly and completely describe the exemplary embodiments of the present invention. Unless otherwise defined, technical or scientific terms used in the present invention should be given the common meanings understood by people with ordinary skills in the relevant field.

[0054] It should be noted that when one element is expressed as “connected”, “coupled” or “connected” to another element, it may mean that they are directly connected, coupled or connected, but it should be understood that there may be intermediate elements between the two; that is, the positional relationship of direct connection and indirect connection is covered.

[0055] It should be noted that the use of "a" or "an" and similar words does not necessarily indicate a limitation of quantity. "Include" or "comprising" and similar words mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects.

[0056] It should be noted that terms such as "up", "down", "left" and "right" that indicate orientation or positional relationships are only used to indicate relative positional relationships. This is for the convenience of describing the present invention, and does not mean that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0057] See also Figure 1The present application discloses a sampling device for leaf pollution of vegetation on both sides of a highway, including a spray assembly and a spray liquid collection assembly; the spray assembly includes a spray bracket, a spray head 202, a water supply pipe 201 and a water supply unit, the spray head 202 is arranged on the upper part of the spray bracket and is arranged corresponding to the crown of the vegetation; the water supply pipe is connected to the spray head; the water supply unit is used to provide power and supply water to the spray head through the water supply pipe 201; the spray liquid collection assembly includes a collector and a sampling bottle, the collector is arranged around the roots of the vegetation; the sampling bottle is connected to the collector and samples the collected spray liquid.

[0058] The spray bracket includes a support 101, a fixed column 102, a telescopic pole 103 and a horizontal rod 104. The support 101 is fixedly set on the ground; the fixed column 102 is fixedly set on the support 101; the telescopic pole 103 is slidably sleeved on the fixed column 102, and a locking part 105 is provided between the fixed column 102 and the telescopic pole 103. The locking part 105 is used to fix the position of the fixed column 102 and the telescopic pole 103; the horizontal rod 104 is set at the top of the telescopic pole 103, and the locking part 105 can be fixed and locked by a locking bolt.

[0059] A spray rod 212 can also be provided, which is fixedly connected to the horizontal rod 104, and the spray head 202 is assembled on the spray rod 212. The lower end of the spray rod 212 is connected to the water supply pipe 201. Spray rods of different lengths can be selected as needed, and a certain number of spray heads can be arranged on the spray rod to meet the flow and range requirements of the spray.

[0060] In terms of control, in this embodiment, a pressure control valve or a pressure gauge 206 is provided on the water supply pipe 201. The water supply pipe 201 is connected to the spray rod 212 through a quick-connect joint. A diagonal support rod is provided between the horizontal rod 104 and the telescopic vertical rod 103. A counterweight block 106 is provided at the end of the horizontal rod away from the vegetation.

[0061] The water supply unit includes a water supply tank 203, a water pump 204, a power source 205 and a controller. The water supply tank 203, the water pump 204 and the water supply pipe 201 are connected in sequence; the power source 205 is used to provide power; the controller is used to control the start and stop action and flow rate of the water pump.

[0062] The collector includes a liquid collecting cover 301, a liquid collecting bracket 302, a partition plate 303 and a liquid flow tube 304. The liquid collecting cover 301 is in an inverted cone shape; the liquid collecting bracket 302 is arranged at the bottom of the liquid collecting cover 301 and supported on the ground; the partition plate 303 is arranged on the upper part of the liquid collecting cover 301, and the partition plate 303 divides the liquid collecting cover 301 into multiple independent liquid collecting chambers; a liquid flow tube 304 is provided at the lower end of each liquid collecting chamber, and the lower part of the liquid flow tube extends into the corresponding sampling bottle 305.

[0063] The liquid collecting cavities in this embodiment are distributed in a stepped ring shape, or arranged in a matrix shape.

[0064] A sealing ring 306 is provided between the middle portion of the liquid collecting housing 300 and the root of the vegetation 500 .

[0065] 1. The self-balancing and adjustable spray component design makes the spray device portable, applicable, stable and reliable in order to achieve the design purpose.

[0066] Portable design: (1) The spray assembly adopts a modular design. The design purpose is achieved by three parts: the main bracket, fixed column, telescopic pole, flexible spray liquid collection component and power supply mode. It is mainly composed of the following technical solutions, the spray head, water supply pipe, etc., and the quick connector connection method is used when assembling, which makes it quick to install and easy to carry.

[0067] Design for adaptability: (1) The fixed columns of the sprinkler assembly are nested with telescopic poles to adapt to the height changes of the vegetation; (2) The sprinkler head is controlled, and by controlling the number of sprinkler heads, the range of adaptation to the vegetation crown has been achieved.

[0068] Stability design: In order to ensure the stability of the rainfall process and the stability of the sprinkler assembly, the following designs are adopted: (1) A counterweight block is added on the other side of the horizontal rod of the sprinkler assembly to prevent the sprinkler head from swinging due to the effect of wind during the spraying process; (2) Anchor bolts are driven into the ground when the sprinkler assembly support is installed, and auxiliary anchor ropes are used to increase the stability of the sprinkler assembly;

[0069] Reliability design: In order to ensure the reliability of the rainfall process, a constant pressure design is adopted, and a constant pressure control table is used to keep the water pressure constant during the rainfall process;

[0070] 2. The spray liquid collection component is designed to be flexible and retractable, so as to achieve the design purpose and make the spray liquid collection component more applicable and reliable.

[0071] The adaptability design mainly uses flexible materials and a multi-stage spray liquid collection cover to adapt to different plant canopy sizes. At the same time, a multi-stage sampler is designed to analyze the distribution characteristics of different pollutants in the plant canopy and their influencing factors.

[0072] The reliability design mainly adopts the combination of steel structure support and flexible connection to ensure that there are no abnormalities in the sampling process during the spraying period.

[0073] The present invention adopts a multi-stage spray liquid collector, which is mainly used to analyze the distribution characteristics of pollutants centered on vegetation plants.

[0074] 3. Power supply mode. In order to improve the applicability of the device, the device adopts two power supply modes. In urban streets or near factories and other facilities on both sides of the road, the device adopts mains power supply; in remote places far away from towns, the device adopts generator power supply.

[0075] The present application also discloses a method for sampling leaf surface pollution of vegetation on both sides of a highway, wherein sampling is performed using the above-mentioned sampling device for leaf surface pollution of vegetation on both sides of a highway, and specifically comprises the following steps:

[0076] Data collection: Collect vegetation parameters and determine the size and installation location of the spray components and spray liquid collection components;

[0077] Equipment assembly and debugging: Assemble and fix the components of the sampling device for vegetation leaf pollution on both sides of the highway, and conduct connection and performance debugging between the various components of the equipment;

[0078] Sampling: Start the spray assembly to spray the crown of the plant, and at the same time the spray liquid collection assembly at the bottom collects and samples the spray liquid;

[0079] Submit for inspection and component analysis.

[0080] During the sampling step, the collector is sampled in different areas, and the number of sampling bottles at each level ranges from 3 to 15. During the spraying process, the capacity of each sampling bottle is observed. When a sampling bottle is filled, a new sampling bottle is replaced until the sampling is completed.

[0081] Before spraying, the liquid collecting cover and sampling bottle need to be cleaned; after spraying, the liquid collecting cover also needs to be cleaned, and the solution during the cleaning process needs to be sampled until the cleaning is completed.

[0082] A detailed description of its specific structure:

[0083] The specific implementation of the present invention is divided into three steps: (1) installation and commissioning of a self-balancing and adjustable spray assembly; (2) installation and commissioning of a flexible and retractable spray liquid collection assembly; and (3) a method and process for sampling leaf surface contamination.

[0084] 1. Installation and commissioning of self-balancing and adjustable spray components:

[0085] Select a representative plant, measure the height and crown of the plant, and determine the spraying range;

[0086] 1. Installation of the spray bracket of the spray assembly:

[0087] According to the range of the plant crown, select the fixing point, clean the ground to a level level, then place the support of the sprinkler assembly, drive the anchor bolt into the position of the fixing hole of the support, and ensure that the fixing column of the sprinkler assembly is perpendicular to the ground while driving the fixing anchor bolt.

[0088] 2. Installation, configuration and debugging of the sprinkler head of the sprinkler assembly:

[0089] After the fixed column, telescopic pole, horizontal pole and counterweight are assembled and debugged, the telescopic pole and fixed column are fixed, and the sprinkler head is arranged on the horizontal pole, or fixed to the horizontal pole through the sprinkler pole, and the sprinkler head is arranged on the sprinkler pole at the same time. The water supply pipe and the sprinkler pole can be connected through the quick connector.

[0090] The angle needs to be adjusted before the telescopic pole and the fixed column are locked. In order to facilitate the angle adjustment, a counterweight can be set at the end of the horizontal rod to ensure that the telescopic pole is evenly stretched and the telescopic pole can be rotated freely.

[0091] 3. Connection of water supply of spray assembly:

[0092] To connect the water supply part of the sprinkler, first connect the water supply pipe to the main sprinkler water supply pipe; install a controllable pressure gauge on the water supply pipe, install a flow meter on the main sprinkler water supply pipe, and connect the data acquisition line of the flow meter to the flow display meter; connect it to the water supply tank through the water pump and water supply pipe; finally, connect the water supply pipe to the sprinkler part through a quick connector.

[0093] 4. Spray component debugging:

[0094] Check whether the spray water in the water supply tank meets the requirements; check whether the generator is working properly and whether the voltage meter on the generator is normal; check whether the water pump is working properly and whether the pressure of the controllable pressure gauge on the water supply pipe is working normally; check whether the controllable sprinkler head is working properly.

[0095] Press the start button of the controller of the sprinkler assembly to debug the sprinkler assembly, mainly adjusting whether the configuration of the horizontal rod is appropriate; debug the relationship between the spraying process of the controllable sprinkler head and the controllable pressure gauge; after the debugging is completed, adjust the telescopic pole to a position 50 cm higher than the height of the vegetation, and at the same time lock the locking bolts on the fixed column to ensure that the positions of the various components of the sprinkler assembly remain unchanged during the spraying process.

[0096] 2. Installation and commissioning of flexible spray liquid collection components:

[0097] The spray liquid collection assembly is installed as a multi-stage umbrella-shaped collector, which is divided into annular stepped areas or matrix areas by partition plates. Sampling bottles and liquid flow tubes are then installed in each collection area, and the liquid collection bracket and liquid collection cover are fixed at the same time. The specific installation process is as follows:

[0098] 1. First, install the vegetation root sealing ring at a position 10 cm from the selected vegetation root, and connect the sealing ring to the middle of the liquid collecting cover. The outer edge and the middle of the liquid collecting cover are connected to the liquid collecting bracket, and the height of the liquid collecting bracket is adjusted. The liquid collecting cover in this embodiment can be integral or split. When the split structure is adopted, each liquid collecting cover is fitted and a liquid collecting bracket is arranged at the bottom of each liquid collecting cover. When the split structure is adopted, the height of each liquid collecting bracket increases from the inside to the outside, thereby ensuring that the collector formed by multiple liquid collecting covers is umbrella-shaped.

[0099] An overflow port is provided at the bottom of the spray liquid collection device, and a liquid flow pipe is installed on the overflow port. After installation, adjust the height of the liquid collection bracket to ensure that the overflow port is located at the lowest point of the corresponding collection area to facilitate the flow of spray liquid into the sampling bottle.

[0100] 2. After installation, use a sprayer with distilled water to clean the liquid collection housing. Fine-tune the spray collection assembly to ensure the spray liquid flows smoothly to the overflow port. After cleaning the liquid collection housing three times, use absorbent filter paper to absorb any remaining moisture on the housing to ensure reliable and accurate sampling. Place the sampling bottle under the corresponding liquid flow tube. Rinse the sampling bottle at least three times with distilled water before placement.

[0101] 3. Sampling method and process of leaf surface pollution:

[0102] This invention uses a multi-stage spray liquid collection method based on different regions, primarily used to analyze the distribution characteristics of pollutants centered around vegetation. After the spray assembly and spray liquid collection assembly are installed and debugged, sampling of the distribution of pollutant foliage on both sides of the highway can be carried out. The specific sampling process is as follows:

[0103] 1. Start the spray assembly and use the spray liquid to wash away the pollutants attached to the leaf surface and drop them into the spray liquid collection assembly. During the spraying process, check for fallen leaves and prevent the overflow port and liquid flow pipe from being blocked.

[0104] 2. Observe the sampling bottle under the spray liquid collection assembly. When one sampling bottle is filled, replace the sampling bottle and continue to collect the spray liquid until the sampling is completed;

[0105] 3. In order to study the distribution of pollutants on the leaf surface, the test process can be determined according to the number of sampling bottles for each level of spray liquid. Generally, the number of sampling bottles for each level in one experimental process is 8-10, and each sampling bottle is 1000mL.

[0106] 4. Number the collected sampling bottles to facilitate the later determination of laboratory pollution composition and data analysis;

[0107] 5. After the test, the test samples will be sent to the laboratory for pollution component analysis;

[0108] 6. The purpose of setting up regional graded spray collection is: as shown in the figure, in this embodiment, four-level sampling is carried out through four annular sampling areas, which are liquid collecting cover I, liquid collecting cover II, liquid collecting cover III, and liquid collecting cover IV from the outside to the inside. Specifically, liquid collecting cover IV mainly analyzes the distribution characteristics of pollutants attached to the plant part; liquid collecting cover III mainly analyzes the distribution characteristics of pollutants attached to the leaf surface near the plant part; liquid collecting cover II mainly analyzes the distribution characteristics of pollutants attached to the leaf surface in the middle part of the crown; liquid collecting cover I mainly analyzes the distribution characteristics of pollutants attached to the leaf surface outside the crown.

[0109] While preferred embodiments for implementing the present invention have been described in detail above, it should be understood that these embodiments are provided for illustrative purposes only and are not intended to limit the scope, applicability, or configuration of the present invention in any way. The scope of the present invention is defined by the appended claims and their equivalents. Persons skilled in the art may make numerous modifications to the aforementioned embodiments in light of the present invention, and such modifications are intended to fall within the scope of the present invention.

Claims

1. A sampling device for leaf pollution of vegetation on both sides of a highway, characterized in that: It includes a spray component and a spray liquid collection component; the spray component includes: The spray bracket comprises: a support fixedly mounted on the ground; a fixed column fixedly mounted on the support; a telescopic pole slidably mounted on the fixed column, a locking portion being provided between the fixed column and the telescopic pole, the locking portion being used to fix the positions of the fixed column and the telescopic pole; and a horizontal rod provided on top of the telescopic pole; A sprinkler head is provided on the upper portion of the sprinkler support and is arranged corresponding to the crown of the plant; a water supply pipe connected to the sprinkler head; and A water supply unit, which is used to provide power and supply water to the sprinkler head through a water supply pipe; The spray liquid collecting assembly comprises: A collector is provided around the roots of vegetation; the collector comprises: a liquid collecting housing having an inverted conical shape; a liquid collecting bracket disposed at the bottom of the liquid collecting housing and supported on the ground; a partition plate disposed at the top of the liquid collecting housing, the partition plate dividing the liquid collecting housing into a plurality of mutually independent liquid collecting chambers; and a liquid flow tube, a liquid flow tube being provided at the lower end of each liquid collecting chamber, the lower portion of the liquid flow tube extending into the corresponding sampling bottle; and a sampling bottle connected to the collector for sampling the collected spray liquid.

2. The sampling device for leaf pollution of vegetation on both sides of the highway according to claim 1 is characterized in that: It also includes a spray rod, which is fixedly connected to the horizontal rod. The spray head is assembled on the spray rod, and the lower end of the spray rod is connected to the water supply pipe.

3. The sampling device for leaf pollution of vegetation on both sides of the highway according to claim 2 is characterized in that: A pressure control valve is provided on the water supply pipe, and the water supply pipe is connected to the spray rod through a quick-connect joint. A diagonal support rod is provided between the horizontal rod and the telescopic vertical rod, and a counterweight block is provided at the end of the horizontal rod away from vegetation.

4. The sampling device for leaf pollution of vegetation on both sides of a highway according to any one of claims 1 to 3, characterized in that: The water supply unit comprises: water supply tank; The water pump, water supply tank, water pump and water supply pipe are connected in sequence; a power source for providing power; and The controller is used to control the start and stop of the water pump and the flow rate.

5. The sampling device for leaf pollution of vegetation on both sides of the highway according to claim 1 is characterized in that: The liquid collecting chambers are distributed in a stepped ring shape, or arranged in a matrix shape.

6. The sampling device for leaf pollution of vegetation on both sides of the highway according to claim 1 is characterized in that: A sealing ring is provided between the middle portion of the liquid collecting cover and the roots of the vegetation.

7. A method for sampling leaf pollution of vegetation on both sides of a highway, characterized in that: Sampling is performed using the sampling device for leaf pollution of vegetation on both sides of a highway as described in any one of claims 1 to 6, specifically comprising the following steps: Data collection: Collect vegetation parameters and determine the size and installation location of the spray components and spray liquid collection components; Equipment assembly and debugging: Assemble and fix the components of the sampling device for vegetation leaf pollution on both sides of the highway, and conduct connection and performance debugging between the various components of the equipment; Sampling: Start the spray assembly to spray the crown of the plant, and at the same time the spray liquid collection assembly at the bottom collects and samples the spray liquid; Submit for inspection and component analysis.

8. The method for sampling leaf pollution of vegetation on both sides of a highway according to claim 7, characterized in that: During the sampling step, the collector is sampled in different areas, and the number of sampling bottles at each level ranges from 3 to 15. During the spraying process, the capacity of each sampling bottle is observed. When a sampling bottle is filled, a new sampling bottle is replaced until the sampling is completed. Before spraying, the liquid collecting cover and sampling bottle need to be cleaned; after spraying, the liquid collecting cover also needs to be cleaned, and the solution during the cleaning process needs to be sampled until the cleaning is completed.

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