A groundwater level measuring device for hydrogeological investigation

Abstract

The utility model relates to hydrogeological survey equipment technical field discloses a groundwater level measuring device for hydrogeological survey, including support, cable and probe, the upside of support is fixedly connected with inverted L type mount, and the inboard of mount is installed with counting wheel and encoder, is used for accurate measurement cable length of lowering, the top of mount is equipped with the briquet driven by electric push rod no.

Description

Technical Field

[0001] This utility model relates to the technical field of hydrogeological survey equipment, specifically a groundwater level measuring device for hydrogeological surveys. Background Technology

[0002] Accurate measurement of groundwater levels is fundamental to hydrogeological surveys, water resource assessments, and environmental monitoring. Currently, the commonly used manual rope-based method has significant drawbacks: measurements require manually lowering the rope, relying on touch or a multimeter to determine if the probe is in contact with the water surface, and then manually reading the scale value on the rope. This method relies entirely on the operator's experience, leading to subjective judgment errors; manual reading and recording are inefficient and prone to errors; and errors are further amplified in deep wells or turbid water. While some electronic measuring devices exist, they mostly focus on the sensor itself, lacking in the mechanization and automation of aspects such as automatic and accurate measurement of the rope length and rapid locking during measurement. In other words, they fail to intelligently integrate depth and water pressure measurements, resulting in cumbersome operation and impacting overall measurement efficiency and accuracy. Utility Model Content

[0003] The technical problem this invention aims to solve is that existing groundwater level measuring devices fail to intelligently integrate depth measurement and water pressure measurement, resulting in cumbersome operation and impacting overall measurement efficiency and accuracy.

[0004] To solve the above problems, the technical solution of this utility model is: a groundwater level measuring device for hydrogeological surveys, including a support, a cable passing through the support, and a probe connected to the end of the cable, wherein the probe integrates a pressure sensor and a temperature sensor.

[0005] An inverted L-shaped fixing frame is fixed to the top of the bracket on one side of the cable. A counting wheel is installed inside the fixing frame. An encoder is coaxially connected to the rotating shaft of the counting wheel. An auxiliary wheel is installed on the top of the bracket on one side of the counting wheel.

[0006] A fixing block is fixedly connected to the top of the fixing frame on one side of the cable, and an electric push rod is installed on the other side through a vertical plate. The output end of the electric push rod is connected to a pressure block.

[0007] The device also includes a handheld controller, which contains a main control module, a power module, a storage module and a wireless transmission module, and has a display screen and operation buttons on its surface.

[0008] Furthermore, the cable is an armored cable, containing wires that connect to the pressure sensor and the temperature sensor.

[0009] Furthermore, a limiting tube sleeved on the outside of the cable is fixedly connected to the top of the fixing frame.

[0010] Furthermore, the counting wheel is mounted inside the fixed frame via the mounting frame one, and the top of the bracket is mounted with an electric push rod two via the vertical plate two. The auxiliary wheel is mounted on the output end of the electric push rod two via the mounting frame two.

[0011] Furthermore, a protective cover is provided on the outside of the probe, and the surface of the protective cover is provided with several water-permeable holes.

[0012] Furthermore, a counterweight is connected to the bottom of the protective cover.

[0013] Furthermore, control buttons for controlling electric actuator one and electric actuator two are installed on the outside of the fixing frame.

[0014] Furthermore, the signal output terminals of the pressure sensor, temperature sensor, and encoder are all connected to the main control module, which is used to automatically calculate and display the water level depth value based on the pressure data and the water level depth calculation model.

[0015] The advantages of this invention compared to existing technologies are as follows: the encoder automatically measures the length of the cable being lowered, the pressure sensor accurately senses the water pressure, and combined with temperature compensation, the main control module automatically calculates the water level depth, eliminating the need for manual readings and human error; the electric actuator-driven clamping and counting mechanism enables one-button clamping of the cable for counting or releasing of the cable for raising and lowering, making operation simple and quick and greatly improving measurement efficiency; the combination of the pressure block and the fixing block reliably locks the cable at any position, facilitating recording or observation during the process. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention.

[0017] Figure 2 This is a connection structure diagram of the bracket of this utility model.

[0018] Figure 3 This is a connection structure diagram of the probe of this utility model.

[0019] As shown in the figure: 1. Bracket; 2. Cable; 3. Probe; 4. Fixing frame; 5. Counting wheel; 6. Encoder; 7. Auxiliary wheel; 8. Fixing block; 9. Electric push rod one; 10. Pressure block; 11. Handheld controller; 12. Limit tube; 13. Mounting frame one; 14. Electric push rod two; 15. Mounting frame two; 16. Protective cover; 17. Counterweight; 18. Control button. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1 to 3 As shown, a groundwater level measuring device for hydrogeological surveys includes a support 1, an armored cable 2 passing through a hole in the middle of the platform of the support 1, and a probe 3 connected to its lower end. The probe 3 is encapsulated with a pressure sensor and a temperature sensor, and is covered with a stainless steel protective cover 16 with multiple rows of water-permeable holes. A counterweight 17 is connected to the bottom of the protective cover 16.

[0022] A fixed bracket 4 in an inverted L-shape is welded to one side of the top of the bracket 1. A counting wheel 5 is installed below the horizontal top plate of the fixed bracket 4 via a mounting frame 13. The shaft of the counting wheel 5 is connected to a high-precision encoder 6 via a coupling. A limiting tube 12 is fixed at the center of the top plate of the fixed bracket 4. The cable 2 passes through the limiting tube 12 and is tightly attached to the groove of the counting wheel 5. A fixing block 8 is fixed on one side of the top plate of the fixed bracket 4, and an electric push rod 9 is installed on the other side via a vertical plate. A rubber pressure block 10 is connected to the end of the piston rod of the electric push rod 9. When the electric push rod 9 extends, the pressure block 10 and the fixing block 8 can clamp the cable 2 together.

[0023] An electric push rod 14 is mounted on one side of the counting wheel 5 on the top of the bracket 1 via a vertical plate 2. An auxiliary wheel 7 is mounted on the piston rod end of the electric push rod 14 via a mounting frame 2 15. When the electric push rod 14 extends, it can push the auxiliary wheel 7 to move toward the counting wheel 5, thereby clamping the cable 2 together. A control button 18 is mounted on the outside of the fixing frame 4 to control the actions of the electric push rod 9 and the electric push rod 14 respectively.

[0024] The handheld controller 11 integrates a main control module (such as an STM32 series microcontroller), a lithium battery (power module), and a 4G / Wi-Fi wireless transmission module. Its surface features an LCD display and function buttons. The wires inside the armored cable 2 transmit signals from the sensor inside the probe 3 to the main control module, and signals from the encoder 6 are also connected to the main control module.

[0025] During measurement, the electric actuator 14 is activated via control button 18, causing the auxiliary wheel 7 and counting wheel 5 to clamp the cable 2. The cable 2 is then manually lowered, causing it to rotate the counting wheel 5. The encoder 6 sends the rotation signal (i.e., the lowering length) to the main control module in real time. When the probe 3 contacts the water surface, the pressure sensor reading changes abruptly. The main control module automatically calculates the real-time water level depth according to the formula: water level depth = cable lowering length - (pressure value / (water density * g)) and displays it on the screen.

[0026] When staff need to temporarily leave the measurement position to retrieve a pen or notebook, or to handle other emergencies, temporary fixation can be achieved by activating electric actuator 9. The clamping block 10 and fixing block 8 will then tighten the cable, securing it in place. Measurement data can be stored in the built-in storage module of the handheld controller and can be wirelessly transmitted to the operator's mobile device and a remote server.

[0027] The parts not disclosed in this utility model are all prior art, and their specific structures and working principles will not be described in detail.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A groundwater level measuring device for hydrogeological surveys, comprising a support (1), a cable (2) passing through the support (1), and a probe (3) connected to the end of the cable (2), wherein the probe (3) integrates a pressure sensor and a temperature sensor, characterized in that: An inverted L-shaped fixing frame (4) is fixed to the top of the bracket (1) on one side of the cable (2). A counting wheel (5) is installed inside the fixing frame (4). An encoder (6) is coaxially connected to the shaft of the counting wheel (5). An auxiliary wheel (7) is installed on the top of the bracket (1) on one side of the counting wheel (5). The top of the fixed frame (4) is fixed to a fixed block (8) on one side of the cable (2), and an electric push rod (9) is installed on the other side through a vertical plate. The output end of the electric push rod (9) is connected to a pressure block (10). The device also includes a handheld controller (11), which has a main control module, a power module and a wireless transmission module inside, and a display screen and operation buttons on its surface.

2. The groundwater level measuring device for hydrogeological surveys according to claim 1, characterized in that: The cable (2) is an armored cable containing wires that connect to the pressure sensor and the temperature sensor.

3. The groundwater level measuring device for hydrogeological surveys according to claim 1, characterized in that: The top of the fixed frame (4) is fixedly connected to a limiting tube (12) sleeved on the outside of the cable (2).

4. The groundwater level measuring device for hydrogeological surveys according to claim 1, characterized in that: The counting wheel (5) is installed inside the fixed frame (4) via the mounting frame one (13). The top of the bracket (1) is equipped with an electric push rod two (14) via the vertical plate two. The auxiliary wheel (7) is installed at the output end of the electric push rod two (14) via the mounting frame two (15).

5. A groundwater level measuring device for hydrogeological surveys according to claim 1, characterized in that: The probe (3) is provided with a protective cover (16) on the outside, and the surface of the protective cover (16) is provided with several water-permeable holes.

6. A groundwater level measuring device for hydrogeological surveys according to claim 5, characterized in that: The bottom of the protective cover (16) is connected to a counterweight (17).

7. A groundwater level measuring device for hydrogeological surveys according to claim 4, characterized in that: The outer side of the fixing frame (4) is equipped with control buttons (18) for controlling electric actuator one (9) and electric actuator two (14).

8. A groundwater level measuring device for hydrogeological surveys according to claim 1, characterized in that: The signal output terminals of the pressure sensor, temperature sensor, and encoder are all connected to the main control module, which is used to automatically calculate and display the water level depth value based on the pressure data and the water level depth calculation model.

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