Runoff water sample time-sharing collection device

Abstract

The utility model relates to the technical field of ecological farmland comprehensive treatment, in particular to a runoff water sample time-sharing collection device. The device mainly comprises a runoff water conveying pipeline, a hollow connecting box arranged on the runoff water conveying pipeline, a through-flow pipeline communicated with the bottom of the hollow connecting box, and a water outlet device mounted at the tail end of the through-flow pipeline, the water collecting device comprises a plurality of water collecting boxes for accommodating runoff water and a rotating device for driving the water collecting boxes to rotate. The device can obtain runoff water samples in different time periods; therefore, the change information of the water sample data along with the time is obtained, and managers can be helped to better master the water quality change condition of the runoff water, so that the scientific management degree of the agricultural runoff water is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ecological farmland comprehensive management, in particular to a time-sharing collection device for runoff water samples. Background Art

[0002] Runoff water is a natural phenomenon, which refers to the flow of water along the surface or underground under the action of gravity. Runoff water mainly comes from rainfall, meltwater from ice and snow, and flowing water generated when watering the land. Runoff water can be divided into different types. According to the source of water flow, it can be divided into rainfall runoff, meltwater runoff and irrigation runoff; according to the flow mode, it can be divided into surface runoff and groundrunner, among which surface runoff can be divided into slope flow and river channel flow. In addition, runoff water may also contain solid runoff formed by solid matter (silt), or ion runoff containing chemically dissolved substances.

[0003] The purpose of collecting runoff water samples is to detect the content of microorganisms or specific elements in the water samples, so as to achieve accurate and scientific monitoring in the construction of ecological farmland and smart farmland; and the collection of runoff water samples also plays an important role in the research on the growth environment of farmland crops.

[0004] In the prior art, the collection and detection of runoff water mostly adopts the water collection tank method, that is, a runoff tank is built at the runoff outlet, the runoff water is collected in the tank, and then the amount of water in the water collection tank is calculated, and the water sample is directly obtained from the runoff tank. Although this method can achieve the acquisition of relevant parameters of runoff water samples, the water sample in the water collection tank is the sum of a long period of time (such as 1 day). Management personnel cannot directly obtain water sample data within a specific short period of time, and cannot obtain information on changes in water sample data over time, and cannot meet the increasing needs of scientific management of farmland. Utility Model Content

[0005] The purpose of the utility model is to provide a time-sharing collection device for runoff water samples, which can obtain runoff water samples in different time periods; and then obtain information on changes in water sample data over time, which can help managers better understand the changes in runoff water quality, thereby greatly improving the scientific management of farmland runoff water. In order to achieve the above purpose, the technical solutions adopted by the utility model are as follows:

[0006] A time-sharing collection device for runoff water samples comprises a runoff water delivery pipeline, characterized in that it also comprises a hollow connecting box arranged on the runoff water delivery pipeline, a flow pipeline connected to the bottom of the hollow connecting box and a water outlet device installed at the end of the flow pipeline; it also comprises a water collecting device, which comprises a plurality of water collecting boxes for accommodating runoff water and a rotating device for driving the water collecting boxes to rotate.

[0007] Thus, the runoff water delivery pipeline is connected to the main runoff pipeline of the farmland, and is used to introduce the runoff water into the device. The hollow connection box is connected to the runoff water delivery pipeline, and its lower end is connected to the through-flow pipeline, so that the runoff water can flow into the through-flow pipeline through the hollow connection box. One end of the through-flow pipeline is connected to the hollow connection box, and the other end is connected to the water outlet device, so that the runoff water can flow to the water outlet device through the through-flow pipeline.

[0008] A water collecting device is arranged below the water outlet device, which is composed of a plurality of water collecting boxes. The plurality of water collecting boxes can be rotated and displaced and changed position under the drive of the rotating device, so that only one water collecting box is located directly below the water outlet device at a time.

[0009] When in use, for example, the rotating device is set to rotate a fixed angle every hour, that is, an empty water collecting box is replaced so that it is located directly below the water outlet device. Thus, within a collection period, the runoff water passes through the runoff water pipe, the hollow connecting box, the flow pipe and the water outlet device in sequence, and flows into the water collecting box directly below. The water sample data in the collection box can be used as the data source for the corresponding time period.

[0010] The rotation of the rotating device can be manual or electric. The rotation time can be controlled by the CNC module of the prior art, or it can be manually adjusted by the management personnel according to the preset time. Since multiple water collection boxes are provided, the water quality changes at different times can naturally be obtained through different water collection boxes. If the electric rotation method is selected, the drive motor and the CNC module can be powered by devices such as batteries and battery systems equipped with photovoltaic panels to meet the power supply needs in the field.

[0011] In summary, this device can conveniently extract runoff water samples in different time periods, help grasp the changes in water quality, and thus greatly improve the scientific management of farmland runoff water.

[0012] As a preferred embodiment of the present invention, the runoff water supply pipeline includes a first pipeline and a second pipeline respectively installed at both ends of the hollow connecting box; the diameter of the first pipeline is larger than the diameter of the second pipeline; the pipeline axis of the second pipeline is higher than the pipeline axis of the first pipeline in vertical height.

[0013] Thus, the runoff water flows from the first pipe to the hollow connection box, and then from the hollow connection box to the second pipe. The two pipes are respectively connected to the side walls of the hollow connection box, and the through-flow pipe is connected to the bottom surface of the hollow connection box. Therefore, when the runoff water flow is small, since the diameter of the first pipe is larger than the diameter of the second pipe, and the pipe axis of the second pipe is higher than the pipe axis of the first pipe in vertical height, it can be ensured that the water flow can flow into the through-flow pipe first, and the water collection device can collect the runoff water sample. And since the installation position of the second pipe on the hollow connection box is raised, it can also reduce the sediment and debris in the water from the first pipe to the second pipe to a certain extent.

[0014] As a preferred embodiment of the utility model, the flow pipe includes a main pipe connected to the water outlet device and a sediment volume pipe connected to the bottom of the hollow connecting box; the sediment volume pipe is arranged vertically on the ground; the main pipe is vertically connected to the sediment volume pipe.

[0015] Therefore, the main pipeline is the circulation pipeline for the collected runoff water samples, which is arranged horizontally, and the sediment volume pipeline is vertically connected to it, and one end is closed. Since the runoff water samples passing through the hollow connection box may be mixed with some sediment, this sediment may cause blockage when passing through the water outlet device, so a sediment volume pipeline is set to accommodate and collect it. Since the mass of sediment is greater than that of water, it will sink to the bottom first in the vertical direction, and the vertical design of the sediment volume pipeline can provide space for it.

[0016] As a preferred embodiment of the present invention, an openable sewage cleaning port is provided at the bottom end of the sediment storage pipe.

[0017] Therefore, since the depth of the sediment volume pipe is prioritized, it cannot hold sediment indefinitely. An openable sewage cleaning port is added at its bottom to allow for regular cleaning to prevent the sediment height from exceeding the pipe depth and causing it to lose its intended function.

[0018] As a preferred embodiment of the present invention, the rotating device includes a plurality of receiving trays for placing the water collecting boxes and a servo motor connected to the receiving trays for driving the receiving trays to rotate.

[0019] Therefore, a plurality of accommodating spaces are opened on the accommodating tray and are arranged in a ring in sequence, and the water collecting boxes can be placed and installed in these accommodating spaces accordingly; the driving shaft of the servo motor is connected to the center of the circle of the accommodating tray, which can drive the accommodating tray to rotate in a circle, and the servo motor has beneficial rotation position controllability, which can ensure that after each rotation, the water collecting box installed on the accommodating tray can be directly opposite the water outlet device to avoid water splashing.

[0020] As a preferred embodiment of the present invention, a safety valve for manually shutting off the water flow is also provided on the main pipeline located before the water outlet device.

[0021] Therefore, the safety valve is installed on the main pipeline, located in front of the water outlet device. When the runoff water volume surges due to heavy rain or other accidents, in order to protect the equipment safety of the water outlet device, the water flow can be blocked by manually closing the safety valve. In addition, when the device is left idle for a long time, the safety valve can also be closed to increase the life of the device; and when the management personnel recycle the water collection box, the safety valve can also be closed to facilitate manual sampling.

[0022] As a preferred embodiment of the present invention, the water outlet device comprises an automatic valve and a liquid level sensor for controlling the automatic valve, and the liquid level sensor is used to sense the liquid level height in the water collecting box.

[0023] Therefore, the automatic valve can adopt the automatic control valve in the prior art that is opened and closed by a specific control signal. The liquid level sensor is mainly used to provide it with a control signal. Specifically, the liquid level sensor can use an ultrasonic sensor in the prior art, which is installed at one end facing the water collecting box. The liquid level height in the water collecting box is judged by the ultrasonic signal. When the runoff water flow is large, the water level in the water collecting box rises rapidly and exceeds the warning water level within the set time, the ultrasonic sensor senses it and sends a control signal to the automatic valve to close the valve; when the water collecting box is replaced, the valve is sensed again and opened.

[0024] As a preferred embodiment of the utility model, a detachable protective cover is installed on the water collecting box, a water through hole is arranged at the center of the protective cover, and the diameter of the water through hole is larger than the water outlet diameter of the automatic valve.

[0025] Therefore, since the device is mostly used outdoors, the working environment is complex. In order to prevent rainwater from invading each empty water collection box and affecting the water sample data, a detachable protective cover is provided at the box opening of each water collection box. The cover has a water through hole in the center, and its diameter is slightly larger than the outlet diameter of the automatic valve. This can ensure the passage of the runoff water sample in the automatic valve and block the invasion of rainwater from other directions.

[0026] As a preferred embodiment of the present invention, an insect screen is provided in the water through hole.

[0027] Therefore, in order to further prevent various insects from crawling into the water collection box through the water through hole, and the possible decay of their corpses from causing significant interference to the collected runoff water data, a cross mesh structure is specially provided in the water through hole to achieve the isolation of insects, small animals or foreign objects while ensuring the passage of runoff water.

[0028] In summary, the utility model has the following beneficial effects:

[0029] 1. Through the timed rotation function of the rotating device, different water collection boxes can be automatically replaced, and runoff water samples can be collected in different time periods, so as to obtain information on the changes in water sample data over time, which can help managers better understand the changes in runoff water quality, thereby greatly improving the scientific management of farmland runoff water.

[0030] 2. Since the runoff water passing through the hollow connection box may be mixed with some sediment, this sediment may cause blockage when passing through the water outlet device. Therefore, a sediment volume pipe is set up to accommodate and collect it. Since the mass of sediment is greater than that of water, it will sink to the bottom first in the vertical direction. The vertical design of the sediment volume pipe can provide it with accommodation space.

[0031] 3. A detachable protective cover is provided at the outlet of each water collection box, and a water through hole is provided in the center thereof, the diameter of which is larger than the outlet diameter of the automatic valve, so as to ensure the passage of the runoff water sample in the automatic valve and block the intrusion of rainwater from other directions.

[0032] 4. A cross-net structure, for example, is provided in the water-passing hole to block insects, small animals or foreign objects while ensuring the passage of runoff water. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the time-sharing collection device for runoff water samples;

[0034] Figure 2 It is a side view of the time-sharing collection device for runoff water samples.

[0035] In the figure: a runoff water delivery pipeline 1, a first pipeline 11, a second pipeline 12, a hollow connecting box 2, a flow pipeline 3, a main pipeline 31, a sediment volume pipeline 32, a water outlet device 4, an automatic valve 41, a liquid level sensor 42, a water collecting device 5, a water collecting box 51, a rotating device 52, a receiving plate 521, a servo motor 522, a safety valve 6, and a protective cover 7. DETAILED DESCRIPTION

[0036] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0037] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0038] Depend on Figure 1 and Figure 2As shown, the runoff water delivery pipeline 1 is connected to the main runoff pipeline of the farmland, and is used to introduce the runoff water into the device. The runoff water delivery pipeline 1 includes a first pipeline 11 and a second pipeline 12 respectively installed at both ends of the hollow connection box 2; the diameter of the first pipeline 11 is larger than the diameter of the second pipeline 12; the pipeline axis of the second pipeline 12 is higher than the pipeline axis of the first pipeline 11 in vertical height. Thus, the runoff water flows from the first pipeline 11 to the hollow connection box 2, and then flows from the hollow connection box 2 to the second pipeline 12. When the runoff water flow rate is small, since the diameter of the first pipeline 11 is larger than the diameter of the second pipeline 12, and the pipeline axis of the second pipeline 12 is higher than the pipeline axis of the first pipeline 11 in vertical height, it can be ensured that the water flow can flow into the through-flow pipeline 3 first, and the water collection device 5 can collect the runoff water sample.

[0039] The lower end of the hollow connection box 2 is connected to the flow pipe 3, so that the runoff water can flow into the flow pipe 3 through the hollow connection box 2. The flow pipe 3 includes a main pipe 31 connected to the water outlet device 4 and a sediment volume pipe 32 connected to the bottom of the hollow connection box 2; the sediment volume pipe 32 is arranged vertically on the ground; the main pipe 31 is vertically connected to the sediment volume pipe 32. Therefore, the main pipe 31 is a circulation pipe for the collected runoff water sample, which is arranged horizontally, and the sediment volume pipe 32 is vertically connected to it, and one end is closed. In another embodiment, the bottom end of the sediment volume pipe 32 is provided with an openable sewage cleaning port.

[0040] The water outlet device 4 includes an automatic valve 41 and a liquid level sensor 42 for controlling the automatic valve. The liquid level sensor 42 is used to sense the liquid level in the water collecting box 51. Therefore, the liquid level sensor 42 can use an ultrasonic sensor in the prior art, which is installed at one end facing the water collecting box 51. The liquid level in the water collecting box 51 is judged by ultrasonic signals. When the runoff water flow is large, the water level in the water collecting box 51 rises rapidly and exceeds the warning water level within the set time, the ultrasonic sensor senses and sends a control signal to the automatic valve 41 to close the valve; when the water collecting box 51 is replaced, the valve is sensed again and opened.

[0041] A water collecting device 5 is provided below the water outlet device 4. The device is composed of a plurality of water collecting boxes 51. The plurality of water collecting boxes 51 can be rotated and displaced under the drive of the rotating device 52 to change positions, so that only one water collecting box 51 is located directly below the water outlet device 4 at a time. The rotating device 52 includes a plurality of receiving trays 521 for placing the water collecting boxes 51 and a servo motor 522 connected to the receiving trays 521 for driving the receiving trays 521 to rotate. The receiving tray 521 is provided with a plurality of receiving spaces, which are arranged in a circular pattern in sequence. The water collecting boxes 51 can be placed and installed in these receiving spaces accordingly. The driving shaft of the servo motor 522 is connected to the center of the receiving tray 521, which can drive the receiving tray 521 to rotate in a circle. The servo motor 522 has a beneficial rotation position controllability, which can ensure that after each rotation, the water collecting box 51 installed on the receiving tray 521 can be directly opposite to the water outlet device 4 to avoid water splashing. In addition, in another embodiment, the water collection box 51 for receiving water samples can be replaced regularly by manually pushing the receiving plate 521 to rotate without the servo motor 522. In addition, a detachable protective cover 7 is provided at the box opening of each water collection box 51, and a water through hole is provided in the center thereof, the diameter of which is slightly larger than the water outlet diameter of the automatic valve 41, which can ensure the passage of the runoff water sample in the automatic valve and block the invasion of rainwater from other directions. In order to further prevent various insects from crawling into the water collection box 51 through the water through hole, and the possible corpse corruption from causing significant interference to the collected runoff water data, a cross mesh structure is provided in the water through hole, for example, to achieve the isolation of insects, small animals or foreign objects while ensuring the passage of runoff water.

[0042] In addition, a safety valve 6 for manually shutting off the water flow is also provided on the main pipeline 31 located before the water outlet device 4. The safety valve 6 is installed on the main pipeline 31 and is located in front of the water outlet device 4. When the runoff water flow rate surges due to heavy rain or other accidents, in order to protect the equipment safety of the water outlet device 4, the water flow can be blocked by manually closing the safety valve 6. In addition, when the device is left idle for a long time, the safety valve 6 can also be closed to increase the life of the device; and when the management personnel recycle the water collection box 51, the safety valve 6 can also be closed to facilitate manual sampling.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for collecting runoff water samples in a time-sharing manner, comprising a runoff water delivery pipeline (1), characterized in that: It also comprises a hollow connection box (2) arranged on the runoff water delivery pipeline (1), a flow pipeline (3) connected to the bottom of the hollow connection box (2), and a water outlet device (4) installed at the end of the flow pipeline (3); it also comprises a water collection device (5), the water collection device (5) comprising a plurality of water collection boxes (51) for accommodating runoff water and a rotating device (52) for driving the water collection boxes (51) to rotate.

2. A time-sharing collection device for runoff water samples according to claim 1, characterized in that: The runoff water pipeline (1) comprises a first pipeline (11) and a second pipeline (12) respectively installed at two ends of the hollow connection box (2); the diameter of the first pipeline (11) is larger than the diameter of the second pipeline (12); and the pipeline axis of the second pipeline (12) is higher in vertical height than the pipeline axis of the first pipeline (11).

3. A time-sharing collection device for runoff water samples according to claim 1, characterized in that: The flow pipe (3) comprises a main pipe (31) connected to the water outlet device (4) and a sediment volume pipe (32) connected to the bottom of the hollow connection box (2); the sediment volume pipe (32) is arranged vertically on the ground; the main pipe (31) is vertically connected to the sediment volume pipe (32).

4. A time-sharing collection device for runoff water samples according to claim 3, characterized in that: The bottom end of the sediment storage pipe (32) is provided with an openable sewage cleaning port.

5. A time-sharing collection device for runoff water samples according to claim 1, characterized in that: The rotating device (52) comprises a plurality of accommodating trays (521) for placing the water collecting boxes (51) and a servo motor (522) connected to the accommodating trays (521) and used for driving the accommodating trays (521) to rotate.

6. A time-sharing collection device for runoff water samples according to claim 4, characterized in that: A safety valve (6) for manually shutting off the water flow is also provided on the main pipeline (31) located before the water outlet device (4).

7. A time-sharing collection device for runoff water samples according to claim 1, characterized in that: The water outlet device (4) comprises an automatic valve (41) and a liquid level sensor (42) for controlling the automatic valve, wherein the liquid level sensor (42) is used to sense the liquid level height in the water collection box (51).

8. A time-sharing collection device for runoff water samples according to claim 7, characterized in that: A detachable protective cover (7) is mounted on the water collection box (51), a water through hole is provided at the center of the protective cover (7), and the diameter of the water through hole is larger than the diameter of the water outlet of the automatic valve (41).

9. A time-sharing collection device for runoff water samples according to claim 8, characterized in that: An insect-proof net is arranged in the water-through hole.

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