Underground water monitoring equipment
By designing a synchronous impact reduction mechanism and a liquid dispensing mechanism, the problem of measurement deviation caused by the difference in impact force during the sampling process was solved, and the water quality monitoring equipment was able to successfully collect water on the first attempt and ensure the accuracy of the test results.
Patent Information
- Application Number
- CN202511225835.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-29
- Publication Date
- 2025-11-14
AI Technical Summary
During the sampling process, existing monitoring equipment suffers from inconsistent water pressure at different water layers, leading to varying impact forces that affect the measurement results of dissolved oxygen, volatile organic compounds, suspended solids, or particulate matter. Furthermore, secondary water sampling affects the accuracy of the sampling, resulting in inaccurate water quality assessments.
The system employs a synchronous flushing mechanism and a liquid dispensing mechanism. The opening and closing of the inlet and the slow descent of the water sample are controlled by the opening and closing gate unit and the slow descent unit, which reduces the impact force of water intake. The sealing and dispensing plate ensures the uniformity of the water sample and sufficient sampling. Combined with the design of the liquid dispensing pipe, it achieves successful water intake and accurate detection in one attempt.
It effectively reduces the impact force of water sampling, ensures the uniformity and sufficient sampling of water samples, improves the accuracy of water quality measurement, avoids measurement deviations caused by excessive or insufficient impact force, and ensures the authenticity of water quality evaluation.
Smart Images
Figure CN120948736A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of water quality monitoring, and more specifically to a groundwater monitoring device. Background Technology
[0002] When surface wastewater seeps into groundwater aquifers, it pollutes the accumulated groundwater. Therefore, monitoring and measuring the types, concentrations, and trends of pollutants in groundwater to assess water quality becomes crucial. Monitoring, in addition to measuring toxic substances, primarily focuses on comprehensive water quality indicators such as temperature, color, turbidity, pH, conductivity, dissolved oxygen, volatile organic compounds, suspended solids or particulate matter, chemical oxygen demand (COD), and biochemical oxygen demand (BOD). To objectively evaluate the water quality of rivers, lakes, and seas, sampling equipment is required to collect water samples.
[0003] To improve sampling accuracy, current monitoring and sampling equipment typically samples water from different layers. However, the problem is that the water pressure varies between layers, resulting in different impact forces of the incoming water, which can affect the measurement results of dissolved oxygen, volatile organic compounds, suspended solids, or particulate matter. Moreover, if the water sample is insufficient and cannot be obtained successfully on the first attempt, a second water sample will affect the accuracy of the sampling, thereby affecting the accuracy of the measurement and water quality assessment. Summary of the Invention
[0004] The present invention aims to provide a groundwater monitoring device to reduce the impact of water intake, strive for successful water intake on the first attempt, and improve the accuracy of water quality measurement.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a groundwater monitoring device, comprising a sample body, a synchronous flushing mechanism and a liquid discharge mechanism, wherein the sample body is provided with a plurality of water storage chambers, and a partition is provided between adjacent water storage chambers. Each water storage chamber of the sample body is provided with a water inlet, and the sample body at the water inlet is provided with a slide, and the sample body is also provided with a cavity communicating with each slide. The synchronous descent mechanism includes an opening and closing gate unit and a slow descent unit. The opening and closing gate unit is located inside the cavity, and each slide is equipped with a baffle. The opening and closing gate unit can move the baffle to expose the water inlet. The area of the sample exposed at the water inlet gradually increases from top to bottom. The slow descent unit includes a slow descent plate and an elastic element. The slow descent plate is slidably disposed in the water storage cavity. The slow descent plate is connected to the partition and the sample at the bottom of the water storage cavity through the elastic element. When the slow descent plate, the partition, and the sample at the bottom of the water storage cavity come together, they can attract each other. The liquid dispensing mechanism includes a liquid dispensing pipe and several sealing and dispensing plates. The liquid dispensing pipe passes through each deceleration plate and the water storage chamber. Each water storage chamber has a water outlet, and each water outlet is located at a different position along the axial direction of the liquid dispensing pipe. After the deceleration plate is attracted to the partition plate and the sample taken at the bottom of the water storage chamber, the water outlet is located above the deceleration plate. The sealing and dispensing plates are slidably connected to the side wall of the liquid dispensing pipe and can seal the water outlet.
[0006] The beneficial effects of this scheme are as follows: When sampling water, the sampling personnel put the sample into the water, and after the baffle is moved by the opening and closing door unit to expose the water inlet, the water enters the water storage chamber through the water inlet; since the area of the sample exposed at the water inlet gradually increases from top to bottom, and the slow-fall plate gradually descends under the action of gravity after the water enters the water storage chamber, the impact force when the water enters the water storage chamber and when water at different depths enters the water storage chamber is effectively reduced.
[0007] When the impact force is strong, the water flow comes into violent contact with the air, which will bring in additional oxygen from the air, resulting in a higher dissolved oxygen value in the water sample. At the same time, the strong impact force will cause violent agitation, which will accelerate the volatilization of volatile organic compounds such as benzene and toluene in the water sample, resulting in the actual detected concentration being lower than the true value of the water body. Moreover, if the water sample contains suspended solids such as silt and flocs, an excessive impact force will break up the flocs and resuspend the deposited particles, resulting in a higher concentration of suspended solids in the sampling bottle.
[0008] To meet the analytical needs of all testing items and reserve space for retesting, it is necessary to ensure sufficient water sample collection. In this scheme, when the slow-fall plate descends and is attracted to the sampling body at the bottom of the partition and water storage chamber, the resulting vibration will be transmitted to the sampling personnel, indicating that the sampling is sufficient and thus ending the sampling. Because the composition of sewage is complex, if the sampling is insufficient and the sampling body is inserted again after a period of time, the water sample depth or other conditions may change, which may easily lead to distorted test results and fail to reflect the true condition of the sewage. If the sampling environment is otherwise unaffected and the sampling personnel do not perceive any shaking, they can still verify whether the water volume is sufficient after taking out the sample. Specifically, if the sample is sufficient, the outlet is located above the deceleration plate. After removing the sealing plate from the outlet, the water sample can be poured out through the outlet pipe, thus proving that the sampling was in place.
[0009] The descending slow-fall plate attracts the sample taken from the baffle and the bottom of the water storage chamber. This avoids the problem of particles settling easily due to insufficient impact force, which fails to reflect the true suspended solids or particulate matter level of the water body, even with the already considered reduction of impact force. Specifically, at the moment the slow-fall plate attracts the sample taken from the baffle and the bottom of the water storage chamber, the mechanical disturbance as the water sample falls with the slow-fall plate forces the wastewater to mix evenly, making the sample closer to the true suspended solids concentration. This helps to obtain a more uniform sample and avoids concentration deviation caused by stratification.
[0010] In addition, after sampling, during testing, the water sample needs to be poured into a reagent cup or other container through the outlet tube. In this solution, when the sealing and separating plate is removed from the outlet to pour out the water sample from each water storage chamber, the sealing and separating plate acts as a diversion plate, allowing water samples to be poured into two containers at once. This helps to reduce the number of pouring operations, thereby reducing the impact of water sample backflow in the outlet tube on the water sample in the water storage chamber and improving the accuracy of the test.
[0011] Furthermore, the door opening and closing unit includes a rack and several opening and closing parts. The opening and closing parts include gears, pull ropes, and tension springs. The rack is slidably disposed in the cavity, and the gear is rotatably disposed in the cavity. The gear includes several teeth, and the rack meshes with the gear, with the number of teeth of each gear decreasing sequentially from top to bottom. The pull rope and tension spring are each located on one side of the baffle. One end of the pull rope is connected to the baffle. The rotation of the gear can pull the baffle to move through the pull rope. One end of the tension spring is connected to the sample taking body, and the other end of the tension spring is connected to the baffle.
[0012] Furthermore, the opening and closing part also includes a winding reel, which is coaxially arranged with the gear, and the other end of the pull rope is connected to the winding reel.
[0013] Furthermore, a metal block is embedded on the lower surface of the deceleration plate, and an electromagnet that can attract the metal block is provided on the partition and the sample body at the bottom of the water storage cavity.
[0014] Furthermore, blind holes are provided on the partition and the sample body at the bottom of the water storage chamber. The upper end of the elastic element is connected to the deceleration plate, and the lower end of the elastic element is located in the blind hole.
[0015] Furthermore, the upper end of the sealing and separating plate is provided with an inclined guide channel.
[0016] Furthermore, the outlet pipe is axially divided into several outlet spaces by a partition plate, with each outlet corresponding to its own outlet space.
[0017] Furthermore, the sample body is equipped with a gripping rod, and both the gripping rod and the rack are equipped with handles. Attached Figure Description
[0018] Figure 1 This is a three-dimensional diagram of the present invention; Figure 2 This is a three-dimensional diagram of the interior of this invention; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 for Figure 3 Left sectional view of the central sealing and separating plate; Figure 5 This is a schematic diagram of a sealing separator.
[0019] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings of the instruction manual include: 1. Sample body; 2. Partition; 3. Inlet; 4. Baffle; 5. Pull rope; 6. Winding reel; 7. Deceleration plate; 8. Liquid outlet pipe; 9. Separating and sealing plate; 10. Outlet; 11. Inclined guide channel. Detailed Implementation
[0020] Example The basic implementation examples are as follows: Figure 1-5 As shown, Figure 1 The groundwater monitoring device shown includes a sample collection body 1, a synchronous flushing mechanism, and a liquid discharge mechanism. A gripping rod is welded to the upper surface of the sample collection body 1. Figure 2 , 3 As shown, in this embodiment, the sample body 1 is made of plastic and has two water storage cavities inside. A partition 2 is welded between the two water storage cavities. Each water storage cavity of the sample body 1 has a water inlet 3. Slides are opened around the water inlet 3, i.e., inside the front side wall of the sample body 1. Each slide is sealed and slidably equipped with a baffle 4. The sample body 1 also has a cavity that communicates with each slide.
[0021] The synchronous descent mechanism includes an opening and closing gate unit and a slow-descent unit. The opening and closing gate unit is located inside the cavity. There can be two opening and closing gate units. Each opening and closing gate unit includes a rack and an opening and closing part. The opening and closing part includes a gear, a pull rope 5, a tension spring, and a winding reel 6. The two racks are slidably arranged side by side in the cavity. The rack on the left is shorter than the rack on the right. The upper end of the rack passes through the sample 1. The two gears are vertically arranged, one on the left and one on the right, and are rotatably arranged in the cavity through a pin. The winding reel 6 is coaxially arranged with the gears. Each rack meshes with one gear. The pull rope 5 and the tension spring are located on one side of the baffle 4. One end of the pull rope 5 is connected to the baffle 4, and the other end of the pull rope 5 is connected to the winding reel 6. One end of the tension spring is connected to the sample 1, and the other end of the tension spring is connected to the baffle 4. By moving the two racks to different degrees, the baffle 4 can be moved to expose the inlet 3. The right rack moves a greater distance, which can satisfy that the area of the exposed inlet 3 below is larger than that above.
[0022] Of course, the opening and closing door unit can also be set as one. The opening and closing door unit includes a rack and two opening and closing parts. The opening and closing parts include a gear, a pull rope 5, a tension spring, and a winding reel 6. The rack is slidably set in the cavity, and the upper end of the rack passes through the sample taking body 1. Handles are welded to both the grip rod and the rack. The handle on the rack is not shown. The gear is rotatably set in the cavity through a pin shaft. The winding reel 6 is coaxially set with the gear. For the sake of illustration, only the left half of the winding reel 6 is shown. The gear includes several teeth. The rack meshes with the gear, and the number of teeth of each gear decreases sequentially from top to bottom. The pull rope 5 and the tension spring are each located on one side of the baffle 4. One end of the pull rope 5 is connected to the baffle 4, and the other end of the pull rope 5 is connected to the winding reel 6. One end of the tension spring is connected to the sample taking body 1, and the other end of the tension spring is connected to the baffle 4. The tension spring is located on the left side of the baffle 4 and is not shown. The gears in the two opening and closing parts have the same module and the same radius. The gear with fewer teeth rotates more and the rope moves more.
[0023] The slow-descent unit includes a slow-descent plate 7 and an elastic element, which is a spring (not shown in the figure). The slow-descent plate 7 is slidably and sealed within the water storage cavity. The upper slow-descent plate 7 is connected to the partition plate 2 via a spring, and the lower slow-descent plate 7 is connected to the sampling body 1 at the bottom of the water storage cavity via a spring. Both the partition plate 2 and the sampling body 1 at the bottom of the water storage cavity have blind holes. The upper end of the spring is welded to the slow-descent plate 7, and the lower end of the elastic element is welded into the blind hole. A metal block is embedded on the lower surface of the slow-descent plate 7. Electromagnets that can attract the metal block are provided on the partition plate 2 and the sampling body 1 at the bottom of the water storage cavity. The switch of the electromagnet is located on the upper surface of the sampling body 1.
[0024] The liquid dispensing mechanism includes a liquid dispensing pipe 8 and two sealing and dispensing plates 9. The liquid dispensing pipe 8 runs from top to bottom through the deceleration plate 7, the partition plate 2, and the water storage chamber. Its lower end is welded to the sample collection body 1 at the bottom of the water storage chamber. A spring is sleeved on the liquid dispensing pipe 8. The liquid dispensing pipe 8 has openings in both water storage chambers. Figure 4 The two outlets 10 shown are located at different axial positions on the left and right sides of the outlet pipe 8. After the deceleration plate 7 and the partition plate 2, as well as the sample 1 at the bottom of the water storage chamber, are attracted by the deceleration plate 7, the outlet 10 is located above the deceleration plate 7. The outlet pipe 8 is axially divided into two outlet spaces, left and right, with each outlet 10 corresponding to one outlet space. The sealing and separating plate 9 is slidably connected to the side wall of the outlet pipe 8 and can seal the outlet 10. Figure 5 As shown, the upper end of the sealing and separating plate 9 has an inclined guide channel 11. When the sampled water is poured out from the outlet pipe 8 through the outlet 10, it will enter the inclined guide channel 11 for diversion.
[0025] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A groundwater monitoring device, characterized in that: It includes a sample taking body, a synchronous flushing mechanism, and a liquid dispensing mechanism. The sample taking body is provided with several water storage chambers, and there are partitions between adjacent water storage chambers. Each water storage chamber has a water inlet on the sample taking body, and each water inlet has a slide in the sample taking body. The sample taking body also has a cavity that communicates with each slide. The synchronous descent mechanism includes an opening and closing gate unit and a slow descent unit. The opening and closing gate unit is located inside the cavity, and each slide is equipped with a baffle. The opening and closing gate unit can move the baffle to expose the water inlet. The area of the sample exposed at the water inlet gradually increases from top to bottom. The slow descent unit includes a slow descent plate and an elastic element. The slow descent plate is slidably disposed in the water storage cavity. The slow descent plate is connected to the partition and the sample at the bottom of the water storage cavity through the elastic element. When the slow descent plate, the partition, and the sample at the bottom of the water storage cavity come together, they can attract each other. The liquid dispensing mechanism includes a liquid dispensing pipe and several sealing and dispensing plates. The liquid dispensing pipe passes through each deceleration plate and the water storage chamber. Each water storage chamber has a water outlet, and each water outlet is located at a different position along the axial direction of the liquid dispensing pipe. After the deceleration plate is attracted to the partition plate and the sample taken at the bottom of the water storage chamber, the water outlet is located above the deceleration plate. The sealing and dispensing plates are slidably connected to the side wall of the liquid dispensing pipe and can seal the water outlet.
2. The groundwater monitoring device according to claim 1, characterized in that: The door opening and closing unit includes a rack and several opening and closing parts. The opening and closing parts include gears, pull ropes, and tension springs. The rack is slidably disposed in the cavity, and the gears are rotatably disposed in the cavity. The gears include several teeth, and the rack meshes with the gears, with the number of teeth of each gear decreasing sequentially from top to bottom. The pull rope and tension spring are each located on one side of the baffle. One end of the pull rope is connected to the baffle. The rotation of the gear can pull the baffle to move through the pull rope. One end of the tension spring is connected to the sample taken, and the other end of the tension spring is connected to the baffle.
3. The groundwater monitoring device according to claim 2, characterized in that: The opening and closing part also includes a winding reel, which is coaxially arranged with the gear, and the other end of the pull rope is connected to the winding reel.
4. The groundwater monitoring device according to claim 3, characterized in that: A metal block is embedded on the lower surface of the deceleration plate, and an electromagnet that can attract the metal block is installed on the partition and the sample body at the bottom of the water storage cavity.
5. A groundwater monitoring device according to claim 4, characterized in that: Blind holes are provided on the sample body at the bottom of the partition and water storage chamber. The upper end of the elastic element is connected to the deceleration plate, and the lower end of the elastic element is set in the blind hole.
6. A groundwater monitoring device according to claim 5, characterized in that: The upper end of the sealing and separating plate is equipped with an inclined guide channel.
7. A groundwater monitoring device according to claim 6, characterized in that: The outlet pipe is axially divided into several outlet spaces by a partition plate, with each outlet corresponding to its own outlet space.
8. A groundwater monitoring device according to claim 7, characterized in that: The sample is equipped with a gripping rod, and both the gripping rod and the rack are equipped with handles.