Collection device for underground water detection

Abstract

The utility model relates to the technical field of acquisition equipment, and discloses an acquisition device for underground water detection, which comprises a universal ammeter, the outer wall of the universal ammeter is fixedly connected with a plurality of single-strand copper core wires, one end of each single-strand copper core wire is fixedly connected with a fixing ring, the outer wall of each single-strand copper core wire is provided with a threaded connection pipe, and the threaded connection pipe is provided with a threaded connection hole. A fixing support is arranged on the outer wall of the threaded connecting pipe, the inner wall of the fixing support is arranged on the outer wall of the fixing ring, a sample cup is fixedly connected to the inner wall of the fixing ring, a nylon lifting rope is arranged on the inner wall of the threaded connecting pipe, a connecting hook is fixedly connected to one end of the nylon lifting rope, and a lifting ring is arranged on the outer wall of the connecting hook. The bottom of the hanging ring is fixedly connected with a connecting column. According to the utility model, the sample cup is used for collecting the heavy non-aqueous phase liquid, so that the problem that the traditional equipment cannot determine whether the heavy non-aqueous phase liquid or the light non-aqueous phase liquid is collected or not is solved, and the use effect of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of collection equipment, in particular to a collection device for groundwater detection. Background Art

[0002] According to the provisions of relevant technical standards such as HJ164-2020: When conducting groundwater monitoring, the water intake location of the monitoring well is generally in the middle of the target aquifer. However, when the water contains heavy non-aqueous phase liquid, the water intake location should be at the bottom of the aquifer and the top of the impermeable layer. When the water contains light non-aqueous phase liquid, the water intake location should be at the top of the aquifer.

[0003] Therefore, when constructing groundwater monitoring wells, if it is suspected that the groundwater contains heavy non-aqueous phase liquid, the filter joint of the groundwater monitoring well should be lower than the bottom of the aquifer to ensure that the heavy non-aqueous phase liquid can enter the monitoring well. When the water contains light non-aqueous phase liquid, the filter joint of the groundwater monitoring well should be higher than the groundwater level to ensure that the light non-aqueous phase liquid can enter the monitoring well.

[0004] However, relevant standards and technical specifications do not specify requirements or sampling methods for heavy non-aqueous phase liquid (DNPL) or light non-aqueous phase liquid (LNAPL). Whether testing for physical and chemical indicators, volatile organic compounds (VOCs), semi-volatile organic compounds (SVOCs), or heavy metals, groundwater samples are generally collected using a bailer tube. However, using a bailer tube to collect groundwater samples does not guarantee that either DNAPL or LNAPL has been collected. Therefore, a groundwater detection sampling device has been proposed to address this issue. Utility Model Content

[0005] In order to make up for the above deficiencies, the present invention provides a collection device for groundwater detection, which aims to improve the problem that traditional equipment cannot determine whether heavy non-aqueous phase liquid or light non-aqueous phase liquid is collected.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A collection device for groundwater detection, comprising a universal meter, wherein a plurality of single-strand copper-core wires are fixedly connected to the outer wall of the universal meter, one end of the single-strand copper-core wire is fixedly connected to a fixing ring, the outer wall of the single-strand copper-core wire is provided with a threaded connection tube, the outer wall of the threaded connection tube is provided with a fixing bracket, the inner wall of the fixing bracket is provided on the outer wall of the fixing ring, a sample cup is fixedly connected to the inner wall of the fixing ring, a nylon hanging rope is provided on the inner wall of the threaded connection tube, one end of the nylon hanging rope is fixedly connected to a connecting hook, the outer wall of the connecting hook is provided with a hanging ring, the bottom of the hanging ring is fixedly connected to a connecting column, the outer wall of the connecting column is fixedly connected to a sealing cover, the outer wall of the hanging ring is slidably connected to a control ring, the bottom of the control ring is fixedly connected to a spring, the outer wall of the threaded connection tube is provided with a connecting assembly, and the connecting assembly is used to connect the threaded connection tube;

[0008] As a further description of the above technical solution:

[0009] The connecting assembly includes an external screw, the inner wall of the external screw is fixedly connected to the outer wall of the threaded connecting pipe, and the bottom of the spring is fixedly connected to the top of the sealing cover;

[0010] As a further description of the above technical solution:

[0011] The spring is internally arranged on the outer wall of the hanging ring, and the inner wall of the threaded connecting pipe is fixedly connected with an inner screw;

[0012] As a further description of the above technical solution:

[0013] The fixing bracket is internally threadedly connected to fixing screws 3 on both sides thereof, and the outer wall of the fixing screws 3 is threadedly connected to the interior of the threaded connection pipe;

[0014] As a further description of the above technical solution:

[0015] The fixing bracket has two fixing screws threadedly connected on both sides thereof, and the outer wall of the fixing screws is threadedly connected to the inside of the control ring;

[0016] As a further description of the above technical solution:

[0017] Both sides of the interior of the fixing bracket are threadedly connected with fixing screws 1, and the outer wall of the fixing screws 1 is threadedly connected to the interior of the fixing ring;

[0018] As a further description of the above technical solution:

[0019] The outer wall of the single-strand copper core wire is provided with a plurality of wire fixing clips, and the inside of each wire fixing clip is threadedly connected with a wire fixing screw;

[0020] As a further description of the above technical solution:

[0021] A display screen is fixedly connected to the interior of the universal electric meter. A plurality of indicator lights are arranged at the bottom of the display screen. The outer walls of the indicator lights are fixedly connected to the interior of the universal electric meter.

[0022] The utility model has the following beneficial effects:

[0023] In the utility model, when the resistance value displayed on the display screen of the outer wall of the universal meter suddenly increases, the sealing cover is lifted by pulling the nylon hanging rope. At this time, the heavy non-aqueous phase liquid will enter the sample cup, and then the sample cup is pulled up by the nylon hanging rope, so as to effectively detect the heavy non-aqueous phase liquid layer accumulated in the lower part of the groundwater phreatic layer, and the heavy non-aqueous phase liquid sample is collected by using the device of the utility model so that the laboratory can perform special measurements on it and determine its major and minor components, thereby solving the problem that traditional equipment cannot determine whether the heavy non-aqueous phase liquid or the light non-aqueous phase liquid is collected, and improving the use effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of a groundwater detection and collection device proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of a sample cup of a groundwater detection collection device proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of the outer screw structure of a groundwater detection and collection device proposed by the utility model;

[0027] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0028] Legend:

[0029] 1. Universal ammeter; 2. Single-strand copper conductor; 3. Threaded connecting tube; 4. Nylon lifting rope; 5. Lifting ring; 6. Control ring; 7. Spring; 8. Sealing cover; 9. Fixing ring; 10. Sample cup; 11. Fixing bracket; 12. Wire fixing clamp; 13. Wire fixing screw; 14. Fixing screw 1; 15. External screw; 16. Internal screw; 17. Fixing screw 2; 18. Fixing screw 3; 19. Connecting hook; 20. Display screen; 21. Indicator light; 22. Connecting column. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1 、 Figure 2 and Figure 3 The utility model provides an embodiment of a groundwater detection collection device, comprising a universal meter 1, a plurality of single-strand copper core wires 2 are fixedly connected to the outer wall of the universal meter 1, a fixed ring 9 is fixedly connected to one end of the single-strand copper core wire 2, a threaded connection tube 3 is provided on the outer wall of the threaded connection tube 3, a fixed bracket 11 is provided on the outer wall of the threaded connection tube 3, the inner wall of the fixed bracket 11 is provided on the outer wall of the fixed ring 9, a sample cup 10 is fixedly connected to the inner wall of the fixed ring 9, a nylon hanging rope 4 is provided on the inner wall of the threaded connection tube 3, and the nylon hanging rope 4 is provided on the inner wall of the threaded connection tube 3. One end is fixedly connected with a connecting hook 19, and a lifting ring 5 is provided on the outer wall of the connecting hook 19. A connecting column 22 is fixedly connected to the bottom of the lifting ring 5, and a sealing cover 8 is fixedly connected to the outer wall of the connecting column 22. A control ring 6 is slidably connected to the outer wall of the lifting ring 5, and a spring 7 is fixedly connected to the bottom of the control ring 6. A connecting assembly is provided on the outer wall of the threaded connecting pipe 3, and the connecting assembly is used to connect the threaded connecting pipe 3. The connecting assembly includes an external screw 15, and the inner wall of the external screw 15 is fixedly connected to the outer wall of the threaded connecting pipe 3. The bottom of the spring 7 is fixedly connected to the top of the sealing cover 8.

[0032] Specifically, during the specific use of the equipment, the threaded connecting pipe 3 must first be extended into the groundwater, and then continued to push downward. When the resistance value displayed on the display screen 20 equipped on the outer wall of the universal meter 1 suddenly increases, this means that the heavy non-aqueous phase liquid layer has been reached. Then continue to extend the threaded connecting tube 3 downward for a specific distance. After completing this step, pull up the nylon hanging rope 4. Under the traction of the nylon hanging rope 4, the sealing cover 8 will be lifted. At this time, the heavy non-aqueous phase liquid will flow into the sample cup 10. After it is filled, loosen the nylon hanging rope 4, and then take out the entire device upward. In order to facilitate subsequent operations, while extracting the device upward, lift the device upward while removing the upper threaded connecting tube 3 section by section until the last section. During this process, always ensure that the sample cup 10 keeps the cup mouth facing upward. When all the threaded connecting tubes 3 are removed, unscrew the sample cup 10 and properly transfer the non-aqueous phase liquid sample in the sample cup 10 to a suitable brown bottle. Finally, tighten the lid with a sealing gasket to ensure that there is no leakage.

[0033] Reference Figure 1 、 Figure 2 and Figure 4 The spring 7 is arranged on the outer wall of the hanging ring 5, the inner wall of the threaded connecting tube 3 is fixedly connected with an internal screw 16, and both sides of the interior of the fixed bracket 11 are threadedly connected with fixing screws 3 18, and the outer wall of fixing screws 3 18 is threadedly connected to the interior of the threaded connecting tube 3, and both sides of the interior of the fixed bracket 11 are threadedly connected with fixing screws 2 17, and the outer wall of fixing screw 2 17 is threadedly connected to the interior of the control ring 6, and both sides of the interior of the fixed bracket 11 are threadedly connected with fixing screws 14, and the outer wall of fixing screw 14 is threadedly connected to the interior of the fixing ring 9. The outer wall of the single-strand copper core wire 2 is provided with multiple wire fixing clips 12, and the inside of the wire fixing clips 12 are all threadedly connected with wire fixing screws 13. The interior of the universal meter 1 is fixedly connected with a display screen 20, and a plurality of indicator lights 21 are provided at the bottom of the display screen 20. The outer wall of the indicator light 21 is fixedly connected to the interior of the universal meter 1.

[0034] Specifically, in the structure of the entire device, the spring 7 can provide a certain elastic buffer for the hanging ring 5. When subjected to external force during operation, the spring 7 can play a role in shock absorption and protection, ensuring the stability and reliability of the hanging ring 5. The presence of the internal screw 16 enables the threaded connecting tube 3 to be tightly and firmly connected to other components with corresponding external screws 15. The threaded connection method is not only convenient for installation and disassembly, but also ensures the firmness of the connection and prevents loosening or falling off during use. The fixing screw three 18 can be rotated to adjust the tightness of the connection to ensure that the position of the fixing bracket 11 on the threaded connecting tube 3 is stable and will not shake or move. At the same time, the fixing screws 2 17 are also threaded on both sides of the interior of the fixing bracket 11, so that the control ring 6 can be tightly combined with the fixing screws 2 17. In addition, the fixing screws 14 are also threaded on both sides of the interior of the fixing bracket 11. This connection enables the fixing ring 9 to be firmly fixed to the fixing bracket 11, providing a guarantee for the stable installation of the sample cup 10. The wire fixing clamp 12 is threaded with a wire fixing screw 13. The combination of the wire fixing clamp 12 and the wire fixing screw 13 can firmly fix the single-strand copper core wire 2 in a specific position to prevent the wire from loosening, shifting or entangled during use. The universal meter 1 is fixedly connected to a display screen 20. The display screen 20 can clearly display the measurement results and related parameters to provide intuitive information to the user. A plurality of indicator lights 21 are provided at the bottom of the display screen 20. The indicator lights 21 can indicate the working status, fault conditions or specific measurement conditions of the equipment through different colors and flashing modes.

[0035] Working principle: During the use of the equipment, extend the threaded connecting tube 3 into the groundwater and continue to extend it downward. When the resistance value displayed on the display screen 20 on the outer wall of the universal meter 1 suddenly increases, it means that the heavy non-aqueous phase liquid layer has been reached. Then continue to extend the threaded connecting tube 3 downward for a distance, pull up the nylon hanging rope 4, so that the sealing cover 8 is lifted. At this time, the heavy non-aqueous phase liquid enters the sample cup 10 and quickly fills the sample cup 10. Then loosen the nylon hanging rope 4 and take out the equipment upward. For ease of operation, lift the equipment while removing the threaded connecting tube 3 above until the last section. While keeping the sample cup 10 with the cup mouth facing upward, unscrew the sample cup 10 and transfer the non-aqueous phase liquid sample in the sample cup 10 to a suitable brown vial. Tighten the lid with a sealing gasket to ensure that there is no leakage.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A collection device for groundwater detection, comprising a universal meter (1), characterized in that: The outer wall of the universal meter (1) is fixedly connected to a plurality of single-strand copper core wires (2), one end of the single-strand copper core wires (2) is fixedly connected to a fixing ring (9), the outer wall of the single-strand copper core wires (2) is provided with a threaded connection tube (3), the outer wall of the threaded connection tube (3) is provided with a fixing bracket (11), the inner wall of the fixing bracket (11) is provided on the outer wall of the fixing ring (9), the inner wall of the fixing ring (9) is fixedly connected to a sample cup (10), the inner wall of the threaded connection tube (3) is provided with a nylon hanging rope (4 ), one end of the nylon hanging rope (4) is fixedly connected to a connecting hook (19), the outer wall of the connecting hook (19) is provided with a hanging ring (5), the bottom of the hanging ring (5) is fixedly connected to a connecting column (22), the outer wall of the connecting column (22) is fixedly connected to a sealing cover (8), the outer wall of the hanging ring (5) is slidably connected to a control ring (6), the bottom of the control ring (6) is fixedly connected to a spring (7), and the outer wall of the threaded connecting pipe (3) is provided with a connecting assembly, and the connecting assembly is used to connect the threaded connecting pipe (3).

2. The underground water detection and collection device according to claim 1, characterized in that: The connecting assembly comprises an outer screw (15), the inner wall of the outer screw (15) is fixedly connected to the outer wall of the threaded connecting pipe (3), and the bottom of the spring (7) is fixedly connected to the top of the sealing cover (8).

3. The underground water detection and collection device according to claim 2, characterized in that: The spring (7) is internally arranged on the outer wall of the hanging ring (5), and the inner wall of the threaded connecting pipe (3) is fixedly connected with an inner screw (16).

4. The underground water detection and collection device according to claim 1, characterized in that: Both sides of the interior of the fixing bracket (11) are threadedly connected with fixing screws three (18), and the outer wall of the fixing screws three (18) is threadedly connected to the interior of the threaded connection pipe (3).

5. The underground water detection and collection device according to claim 4, characterized in that: The fixing bracket (11) has two fixing screws (17) threadedly connected on both sides thereof, and the outer wall of the fixing screw (17) is threadedly connected to the inside of the control ring (6).

6. The underground water detection and collection device according to claim 4, characterized in that: Both sides of the interior of the fixing bracket (11) are threadedly connected with fixing screws 1 (14), and the outer wall of the fixing screw 1 (14) is threadedly connected to the interior of the fixing ring (9).

7. The underground water detection and collection device according to claim 1, characterized in that: The outer wall of the single-strand copper core wire (2) is provided with a plurality of wire fixing clamps (12), and the inside of each of the wire fixing clamps (12) is threadedly connected with a wire fixing screw (13).

8. The underground water detection and collection device according to claim 1, characterized in that: A display screen (20) is fixedly connected to the interior of the universal electric meter (1), a plurality of indicator lights (21) are provided at the bottom of the display screen (20), and outer walls of the indicator lights (21) are fixedly connected to the interior of the universal electric meter (1).

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