Underground water flowing property detection device and detection method

Abstract

The invention discloses an underground water flowing property detection device and detection method in the technical field of underground water detection, the underground water flowing property detection device comprises a controller, the controller is electrically connected with a communication assembly, the communication assembly is fixedly connected with a pressed assembly used for collecting impact force when underground water flows, and the bottom of the pressed assembly is detachably connected with a stabilizing assembly; the compression assembly comprises a hollow body, the outer surface of the hollow body is sleeved with an elastic layer, a sliding cavity is formed between the elastic layer and the hollow body, a plurality of moving rods are evenly and slidably matched with the hollow body, one ends of the moving rods are fixedly connected with the elastic layer, and the other ends of the moving rods extend to the hollow part of the hollow body. The moving rods are annularly sleeved with springs located in the sliding cavities. Signal assemblies are arranged at the sliding connection positions of the moving rods and the hollow body. The underground water flow velocity is detected by detecting the impact force of water flow on the elastic layer, and the impact of hard objects such as stones on the device is reduced by using the elastic layer and other parts.

Description

Technical Field

[0001] The present invention relates to the technical field of groundwater detection, and particularly to a device and method for detecting the flow performance of groundwater. Background Art

[0002] Groundwater is the main water source in many areas, and its flow detection is crucial for the rational development, utilization, and protection of groundwater resources. Through detection, the dynamic changes of the groundwater level, recharge mechanism, and exploitation potential can be understood, providing an important basis for formulating a scientific groundwater exploitation plan. This helps to achieve the sustainable utilization of groundwater resources and avoid the decline of the groundwater level and water resource depletion caused by overexploitation.

[0003] The rapid change of the groundwater level may trigger geological disasters such as ground subsidence and landslides. Regularly monitoring the dynamic changes of the groundwater level helps to timely detect the signs of geological disasters and provide early warning information for relevant departments. This helps to take effective measures for prevention and treatment and reduce the threat of geological disasters to the safety of human life and property. Moreover, groundwater is an important part of the ecological environment and plays a key role in maintaining the stability of the ecosystem and protecting biodiversity. By detecting the flow of groundwater, its interaction with the ecological environment can be understood, providing a scientific basis for the formulation and implementation of ecological protection measures. For example, maintaining an appropriate groundwater level helps to protect the stability of ecological systems such as wetlands, rivers, and lakes and promote the protection of biodiversity.

[0004] Traditional groundwater flow detection techniques usually involve injecting artificial tracers (such as radioactive isotopes, fluorescent dyes, etc.) into groundwater and monitoring the migration path and time of the tracers to understand the flow path and velocity of groundwater. This method is generally cumbersome and time-consuming. Due to the complexity and diversity of the groundwater system, it is difficult to find a generally applicable tracer and concentration, which may lead to the migration behavior of the tracer in groundwater not meeting expectations, thus affecting the accuracy of test results. At the same time, this method also has a certain degree of pollution to groundwater. Therefore, some detection devices detect at a fixed detection point and use the flow of groundwater to cause the device to change its angle, and then analyze the groundwater flow direction by the controller using the angle change data. However, in some areas with relatively fast flow rates, when groundwater flows, it is easy to wash away some hard objects such as rocks above it and impact the detection device with the water flow, reducing the service life and detection accuracy of the device.

[0005] Therefore, the present invention proposes a device and method for detecting the flow performance of groundwater to solve the above problems. Summary of the Invention

[0006] To solve the above problems, the present invention provides a device and a method for detecting the flow performance of groundwater. By detecting the impact force of water flow on an elastic layer, the groundwater flow velocity is detected, and components such as the elastic layer are used to reduce the impact of hard objects such as stones on the device.

[0007] To achieve the above object, the technical solution of the present invention is as follows: A device for detecting the flow performance of groundwater includes a controller, the controller is electrically connected to a communication component, the communication component is fixedly connected to a pressure-receiving component for collecting the impact force when groundwater flows, and a stabilizing component for stably fixing the pressure-receiving component at the bottom of the groundwater is detachably connected to the bottom of the pressure-receiving component;

[0008] The pressure-receiving component includes a hollow main body, an elastic layer is sleeved on the outer surface of the hollow main body, a sliding cavity is formed between the elastic layer and the hollow main body, a plurality of moving rods are evenly slidably matched on the hollow main body, one end of each moving rod is fixedly connected to the elastic layer, the other end of the moving rod extends into the hollow part of the hollow main body, springs are sleeved on the moving rods and located in the sliding cavity, one end of each spring is fixedly connected to the moving rod, and the other end of the spring is fixedly connected to the surface of the hollow main body; signal components for detecting the relative displacement between the moving rod and the hollow main body are arranged at the sliding connection parts of the moving rod and the hollow main body, and the signal components are electrically connected to the controller.

[0009] Principle of the basic solution: Utilize the impact force of groundwater flow on an object to cause the pressure-receiving component to deform (i.e., displacement signal), and then convert these displacement signals into electrical signals through the signal components and transmit them to the controller. The controller analyzes and calculates to obtain the flow velocity of the water flow. At the same time, due to the characteristics of stones and fluid (groundwater), when a stone impacts the elastic layer, a relatively large deformation will occur locally at a relatively fast speed compared to the water flow impact. Thus, the controller can identify this outlier different from most similar data to improve the accuracy of subsequent groundwater flow velocity calculation.

[0010] The following are the beneficial effects of adopting the above solution:

[0011] 1. Compared with the prior art, in this solution, by utilizing the impact force of groundwater flow and the deformation of the pressure-receiving component to detect the water flow velocity, the device can achieve accurate measurement of the water flow velocity. At the same time, by identifying abnormal signals to eliminate the influence of obstacles such as stones on the measurement results, the accuracy of detection is further improved. Thus, when the device is used for detecting the groundwater fluidity, the adaptability to some complex environments (such as the situation of mixed stones) is improved, and the interference and damage caused by stone impacts to the device are reduced.

[0012] 2. In this solution, the design of the stabilizing component enables the pressure-receiving component to be firmly fixed at the bottom of the groundwater, avoiding displacement or damage caused by water flow scouring. This not only ensures the continuity of detection but also improves the overall stability of the device.

[0013] Furthermore, the stabilizing component includes a fixing wire detachably connected to the bottom of the hollow body, and a stabilizing block is fixedly connected to the other end of the fixing wire.

[0014] Beneficial effects: One end of the fixing wire is detachably connected to the bottom of the hollow body in the pressure-receiving component. This design allows for easy disassembly and reinstallation of the pressure-receiving component when necessary, facilitating maintenance or replacement. The other end of the fixing wire is firmly connected to the stabilizing block. The stabilizing block is typically made of a high-density, corrosion-resistant material to ensure its stability and durability in the groundwater environment. The designed shape and size of the stabilizing block are intended to maximize its contact area with the underwater terrain, thereby providing stronger support and stability.

[0015] Furthermore, the communication component includes a rotating seat provided at the top of the hollow body. An outer shell wire is fixedly connected to the rotating seat. A signal wire is arranged inside the outer shell wire. All signal components are electrically connected to one end of the signal wire, and the other end of the signal wire is electrically connected to the controller.

[0016] Beneficial effects: The introduction of the rotating seat and the outer shell wire enables the signal wire to maintain a stable connection in various complex underwater environments. This design effectively reduces the risk of the signal wire breaking or being damaged due to external forces or environmental factors, thereby improving the reliability of communication. The rotating seat allows the outer shell wire to rotate freely within a certain range, enabling the device to adapt to various complex underwater terrains and water flow conditions. This adaptability ensures that the device is not restricted by wiring problems during deployment, thereby enhancing its flexibility and operability in practical applications. The outer shell wire, as a protective conduit, provides additional protection for the internal signal wire. It can resist physical and chemical erosion in groundwater, extending the service life of the signal wire. At the same time, the flexibility of the outer shell wire also enables it to adapt to various wiring requirements, reducing the difficulty of installation and maintenance.

[0017] Furthermore, an angle sensor is arranged inside the rotating seat, and the angle sensor is electrically connected to the controller.

[0018] Beneficial effects: The angle sensor is used to collect the angle when the angle change of the hollow body in groundwater tends to be stable, and then compare and calculate it with the initial angle of the angle sensor, and take the average value. Finally, based on the magnitude and positive or negative of the average value, the specific water flow direction is judged to further determine the water flow direction.

[0019] Furthermore, all signal components include a conductive layer, a resistance layer, and a current collector for collecting the current change between the conductive layer and the resistance layer. The conductive layer is arranged on the surface of the moving rod, the resistance layer is lined on the inner surface of the sliding fit between the hollow body and the moving rod, and the current collector is electrically connected to the controller.

[0020] Beneficial effects: By monitoring the current change between the conductive layer and the resistance layer, the signal component can very sensitively capture the tiny displacement of the moving rod. This high sensitivity ensures that the device can accurately reflect the impact of groundwater flow on the pressurized component, enabling it to adapt to displacement measurements of different ranges and amplitudes. Whether it is a tiny displacement or a large impact, the signal component can accurately capture it and convert it into a corresponding electrical signal.

[0021] Furthermore, the hollow main body is of an ellipsoidal structure.

[0022] Beneficial effects: When groundwater flows through the hollow main body, due to the design of the ellipsoidal structure, the long axis of the hollow main body will gradually rotate to the horizontal line consistent with the groundwater flow direction, keeping the hollow main body relatively stable.

[0023] Furthermore, a tension sensor is provided at the connection between the fixed wire and the hollow main body, and the tension sensor is electrically connected to the controller.

[0024] Beneficial effects: The design of the tension sensor can detect the tension of the fixed wire when the hollow main body floats in groundwater, and thus, through calculation, it can be used as compensation data when calculating the water flow velocity to improve its accuracy.

[0025] Furthermore, a method for detecting the performance of groundwater flow is as follows:

[0026] S1 Sink the stabilizing block to the bottom of the groundwater so that the hollow main body floats in the groundwater and receives the impact of the groundwater.

[0027] S2 After being impacted by the water flow, the elastic layer deforms, squeezes the moving rod, causing the current input to the controller by the corresponding current collector to change. Then, based on the corresponding current value, calculate the deformation amount of the corresponding area of the elastic layer and the value of the corresponding impact force received, and then calculate the groundwater flow velocity based on the obtained impact force and the pre-determined groundwater density.

[0028] Furthermore, the underground water flow direction detection process in step S1 is as follows: Wait for 1 - 2 minutes for the ellipsoidal hollow main body floating in the groundwater, obtain the data of the current angle sensor, and perform subtraction processing with the initial data of the angle sensor when it is placed in the groundwater. Based on the obtained result, judge the groundwater flow direction.

[0029] Furthermore, the detection initialization process in step S2 is as follows: First, add the value obtained by the tension sensor to the weights of the elastic layer and its internal components to obtain the first initial data; then divide the first initial data by the product of the predicted groundwater density and the acceleration of gravity to obtain the change value of the pressure received by the elastic layer in the groundwater. Divide the change value by the number of moving rods to obtain the compensation value. When calculating the groundwater flow velocity, the displacement data of the moving rods are all compensated and calculated based on the compensation value.

[0030] The above - mentioned solution has the following beneficial effects:

[0031] 1. By sinking the stable block to the bottom of the water and making the hollow body float in the water, it can directly receive the impact of groundwater, thus responding to the changes in water flow in real - time. This design makes the measurement process more direct and accurate. After being impacted by the water flow, the elastic layer deforms, and then squeezes the moving rod. During this process, the current collector can capture the tiny current changes and convert them into accurate deformation and impact force data.

[0032] 2. During the detection initialization process, by considering the value obtained from the tension sensor, the weights of the elastic layer and its internal components, as well as predicting the groundwater density and gravitational acceleration, the change value of the pressure received by the elastic layer in the groundwater can be calculated. This step provides a basis for subsequent compensation operations. By dividing the change value by the number of moving rods to obtain the compensation value and applying these compensation values when calculating the groundwater flow velocity, the error can be further reduced and the measurement accuracy can be improved.

[0033] 3. In step S1, after waiting for the floating hollow body to stabilize, by obtaining the data of the current angle sensor and comparing it with the initial data, the direction of groundwater flow can be quickly judged. This method does not require additional equipment or complex operations, greatly simplifying the process. The entire detection system adopts an integrated design, including components such as a stable block, a hollow body, an elastic layer, a moving rod, a current collector, and a controller. They work together to achieve automated measurement and data processing. This reduces the possibility of human intervention and improves the stability and reliability of the measurement.

[0034] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0035] Figure 1 It is an overall axonometric view of an embodiment of the groundwater flow performance detection device of the present invention;

[0036] Figure 2 It is a front - view cross - section of the pressure - receiving component of an embodiment of the groundwater flow performance detection device of the present invention;

[0037] Figure 3 It is a flowchart of an embodiment of the groundwater flow performance detection method of the present invention.

[0038] The reference numerals in the drawings of the specification include: 1. Elastic layer; 2. Rotating seat; 3. Outer shell wire; 4. Fixed wire; 5. Stable block; 6. Spring; 7. Moving rod; 8. Hollow body. Detailed Embodiments

[0039] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] The following will be further described in detail through specific embodiments:

[0043] Embodiment 1:

[0044] As shown in the attached Figure 1 and Figure 2 figures, a groundwater flow performance detection device includes a controller, and the controller is electrically connected to a communication component. At some detection points where the groundwater environment is relatively complex, when the existing detection devices are performing detections, they are easily impacted by hard objects driven by the groundwater, resulting in damage to the detection devices. This not only causes inaccurate detection results but also increases costs and detection time. Therefore, in this solution, the communication component is fixedly connected to a pressure-receiving component for collecting the impact force when the groundwater flows, and the flow rate of the groundwater is detected by using the impact when the groundwater flows. In fluid mechanics, a flowing fluid (such as water) will exert a pressure on the objects it contacts, and when the water flow rate increases, this pressure (or impact force) will also increase accordingly. When performing detections, this device needs to be stable in a relatively fixed area to ensure the accuracy of the detection results. Therefore, the bottom of the pressure-receiving component is detachably connected to a stabilizing component for stabilizing the pressure-receiving component at the bottom of the groundwater;

[0045] The pressure-bearing component includes a hollow main body 8. Through the design of the hollow main body 8, it is ensured that the buoyancy it receives in groundwater is greater than its gravity, and at the same time, it is ensured that the buoyancy it receives is much smaller than that of the stabilizing component, so as to ensure that the hollow main body 8 floats in a fixed area in the groundwater. An elastic layer 1 is sleeved on the outer surface of the hollow main body 8. When groundwater impacts the elastic layer 1, it will undergo elastic deformation based on the magnitude of the impact force received, and then the amount of this elastic deformation can be collected to calculate the flow rate of groundwater. Thus, a sliding cavity is formed between the elastic layer 1 and the hollow main body 8. A number of moving rods 7 are evenly and slidably fitted on the hollow main body 8. One end of each moving rod 7 is fixedly connected to the elastic layer 1, and the other end of the moving rod 7 extends into the hollow part of the hollow main body 8. Springs 6 located in the sliding cavity are sleeved on each moving rod 7. One end of each spring 6 is fixedly connected to the moving rod 7, and the other end of the spring 6 is fixedly connected to the surface of the hollow main body 8. When the elastic layer 1 is impacted and deformed, it will squeeze the corresponding area of the moving rod 7 and cause the moving rod 7 to slide relative to the hollow main body 8. At the same time, by using the elasticity of the spring 6, not only can the change rate (acceleration) of the sliding speed of the moving rod 7 be prevented from being too large or having a large fluctuation value to ensure the smoothness of subsequent data collection, but also it is convenient for the elastic layer 1 to quickly reset, that is, to quickly respond to the change efficiency of the groundwater flow rate. Signal components for detecting the relative displacement between the moving rod 7 and the hollow main body 8 are provided at the sliding connection between the moving rod 7 and the hollow main body 8, and the signal components are electrically connected to the controller.

[0046] Utilize the differences in the impact characteristics of an object by water and a hard object (stone) in water. Take the example of a stone hitting a human body in water. As a solid, the impact force of the stone has the characteristics of locality, instantaneity, and high pressure. When the stone contacts a person, a large pressure will be generated at the contact point, which may cause local injuries such as scratches and impact injuries. While water, as a liquid, its impact force has the characteristics of diffusivity, persistence, and relative mildness. When the water flow impacts the human body, it will be evenly distributed on the human body surface, generating a relatively small pressure, and due to the fluidity of water, the impact force will gradually weaken over time. When a hard object (such as a stone) impacts the elastic layer 1, the area of the elastic layer 1 being impacted will quickly deform, that is, the data in this area will show a change trend significantly different from the data in other areas. Thus, through this difference, the data collected in this area is removed to affect the calculation result of the groundwater flow rate. At the same time, the number of impacts and the corresponding abnormal values will also be recorded for the staff to view, which can further help them understand the groundwater situation in this area segment. For example, when the number of impacts is relatively large and the abnormal value is large within a certain period, it may help the staff judge whether the formation above the groundwater will show a subsidence phenomenon.

[0047] The stabilizing component includes a fixing wire 4 detachably connected to the bottom of the hollow main body 8, and a stabilizing block 5 is fixedly connected to the other end of the fixing wire 4. The stabilizing block 5 can select lead as the material.

[0048] When the hollow main body 8 is in groundwater, it will rotate under the impact of groundwater, which easily twists the lines used for communication and reduces the service life. Therefore, the communication component includes a rotating seat 2 provided at the top of the hollow main body 8. An outer shell wire 3 is fixedly connected to the rotating seat 2. A signal wire is arranged inside the outer shell wire 3. All signal components are electrically connected to one end of the signal wire, and the other end of the signal wire is electrically connected to the controller, so as to avoid the direct contact between the signal wire and groundwater and prevent the signal wire from rotating with the hollow main body 8 by using the rotating seat 2. At the same time, the hollow main body 8 is of an ellipsoidal structure. Under the pulling and fixing action of the fixed wire 4 and the outer shell wire 3, when groundwater flows through the hollow main body 8, due to the design of the ellipsoidal structure, the long axis of the hollow main body 8 will gradually rotate to the horizontal line consistent with the groundwater flow direction. However, it is still difficult to determine the specific direction of the water flow. Therefore, an angle sensor is arranged inside the rotating seat 2, and the angle sensor is electrically connected to the controller. The angle sensor is used to collect the angle when the angle change of the hollow main body 8 in groundwater tends to be stable, and then compare and calculate it with the initial angle of the angle sensor, and take the average value. Finally, the specific water flow direction is judged based on the size and positive or negative of the average value.

[0049] All signal components include a conductive layer, a resistance layer, and a current collector for collecting the current change between the conductive layer and the resistance layer. The conductive layer is arranged on the surface of the moving rod 7, the resistance layer is lined on the inner surface of the sliding fit part of the hollow main body 8 and the moving rod 7, and the current collector is electrically connected to the controller. When the elastic layer 1 is pressed and the moving rod 7 slides, the conductive layer and the resistance layer also slide relatively, so that the resistance connected to the current collector changes, resulting in the change of the current output by the current collector to the controller. Through this conversion method, the impact force of groundwater flow on the elastic layer 1 is digitized for subsequent calculation of the water flow velocity.

[0050] At the same time, due to the existence of the elastic layer 1 and the device needs to float in water, it will inevitably be affected by water pressure, resulting in the change of the elastic layer 1 and insufficient accuracy of the subsequent water flow velocity result, which cannot objectively reflect the groundwater flow performance. Therefore, a tension sensor is arranged at the connection between the fixed wire 4 and the hollow main body 8, and the tension sensor is electrically connected to the controller. By detecting the tension of the fixed wire 4 when the hollow main body 8 floats in groundwater, and based on the weight of the elastic layer 1 and its internal components and the pre-measured groundwater density, the initial position of the moving rod 7 used for calculating the water flow velocity is compensated to improve the accuracy of the obtained water flow velocity.

[0051] Embodiment 2:

[0052] As Figure 3 shown, a method for detecting the groundwater flow performance is as follows:

[0053] Step S1: Sink the stabilizing block 5 to the bottom of the groundwater so that the hollow body 8 floats in the groundwater and is subjected to the impact of the groundwater.

[0054] The process of detecting the groundwater flow direction is included in the step S1, which is as follows: Wait for 1-2 minutes for the ellipsoidal hollow body 8 floating in the groundwater, obtain the data of the current angle sensor, and perform subtraction processing with the initial data of the angle sensor when it is placed in the groundwater. According to the obtained result, judge the groundwater flow direction.

[0055] Step S2: After being impacted by the water flow, the elastic layer 1 deforms, squeezes the moving rod 7, causing the current input to the controller by the corresponding current collector to change. Then, based on the corresponding current value, calculate the deformation amount of the corresponding area of the elastic layer 1 and the value of the corresponding impact force received. Then, calculate the groundwater flow velocity based on the obtained impact force and the pre-determined groundwater density.

[0056] The process of detection initialization is included in the step S2, which is as follows: First, add the value obtained by the tension sensor to the weights of the elastic layer 1 and its internal components to obtain the first initial data; then divide the first initial data by the product of the predicted groundwater density and the acceleration of gravity to obtain the change value of the pressure received by the elastic layer 1 in the groundwater. Divide the change value by the number of moving rods 7 to obtain the compensation value. When calculating the groundwater flow velocity, the displacement data of the moving rods 7 are all compensated correspondingly based on the compensation value.

[0057] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A groundwater flow performance detection device, comprising a controller, characterized in that: The controller is electrically connected to a communication component, the communication component is fixedly connected to a pressure component for collecting the impact force of groundwater flow, and the bottom of the pressure component is detachably connected to a stabilizing component for stabilizing the pressure component at the bottom of the groundwater; The pressure-bearing component comprises a hollow body (8), the outer surface of the hollow body (8) is sleeved with an elastic layer (1), a sliding cavity is formed between the elastic layer (1) and the hollow body (8), a plurality of moving rods (7) are uniformly slidably matched on the hollow body (8), one end of the moving rods (7) are fixedly connected to the elastic layer (1), and the other end of the moving rods (7) extends to the hollow part of the hollow body (8), and a spring (6) located in the sliding cavity is sleeved on the moving rods (7), one end of the spring (6) is fixedly connected to the moving rod (7), and the other end of the spring (6) is fixedly connected to the surface of the hollow body (8); a signal component for detecting the relative displacement between the moving rod (7) and the hollow body (8) is provided at the sliding connection between the moving rod (7) and the hollow body (8), and the signal component is electrically connected to a controller.

2. The groundwater flow performance detection device according to claim 1, characterized in that: The stabilizing component comprises a fixing line (4) detachably connected to the bottom of the hollow main body (8), and the other end of the fixing line (4) is fixedly connected to a stabilizing block (5).

3. The groundwater flow performance detection device according to claim 2, characterized in that: The communication component comprises a rotating seat (2) arranged on the top of the hollow body (8), a shell line (3) is fixedly connected to the rotating seat (2), a signal line is arranged inside the shell line (3), the signal components are electrically connected to one end of the signal line, and the other end of the signal line is electrically connected to the controller.

4. The groundwater flow performance detection device according to claim 3, characterized in that: An angle sensor is arranged inside the rotating seat (2), and the angle sensor is electrically connected to the controller.

5. The groundwater flow performance detection device according to claim 4, characterized in that: The signal components all include a conductive layer, a resistive layer and a current collector for collecting current changes between the conductive layer and the resistive layer. The conductive layer is arranged on the surface of the moving rod (7), the resistive layer is lined on the inner surface of the sliding fit between the hollow body (8) and the moving rod (7), and the current collector is electrically connected to the controller.

6. The groundwater flow performance detection device according to claim 5, characterized in that: The hollow body (8) is an ellipsoidal structure.

7. The groundwater flow performance detection device according to claim 6, characterized in that: A tension sensor is provided at the connection between the fixed line (4) and the hollow body (8), and the tension sensor is electrically connected to the controller.

8. A method for detecting groundwater flow performance, according to the groundwater flow performance detection device according to any one of claims 1 to 7, the specific steps are as follows: S1 sinks the stabilizing block (5) into the bottom of the groundwater, so that the hollow body (8) floats in the groundwater to receive the impact of the groundwater; The S2 elastic layer (1) is deformed after being impacted by the water flow, squeezing the moving rod (7), causing the current of the corresponding current collector input controller to change. Based on the corresponding current value, the deformation amount of the corresponding area of ​​the elastic layer (1) and the value of the corresponding impact force are calculated, and the groundwater flow rate is calculated based on the acquired impact force and the pre-determined groundwater density.

9. The method for detecting groundwater flow performance according to claim 8, characterized in that: The process of detecting the groundwater flow direction included in S1 is as follows: wait for the ellipsoidal hollow body (8) to float in the groundwater for 1-2 minutes, obtain the data of the current angle sensor, and perform subtraction processing with the initial data of the angle sensor when it is placed in the groundwater, and judge the direction of groundwater flow based on the obtained result.

10. The method for detecting groundwater flow performance according to claim 8, characterized in that: The detection initialization process included in S2 is as follows: first, the value obtained by the tension sensor is added to the weight of the elastic layer (1) and its internal components to obtain the first initial data; then, the first initial data is divided by the product of the predicted groundwater density and the gravitational acceleration to obtain the change value of the pressure exerted on the elastic layer (1) in the groundwater, and the change value is divided by the number of moving rods (7) to obtain the compensation value. When calculating the groundwater flow rate, the displacement data of the moving rods (7) are all subjected to corresponding compensation operations based on the compensation value.

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