Multi-layer groundwater level surveying device

Abstract

The utility model discloses multilayer groundwater level surveying device belongs to groundwater surveying technical field, and the surveying device includes the surveyor, and the lower extreme of surveyor is provided with the detection groove, the detection groove is provided with the guide rod in the longitudinal direction, and the float ball is slidably installed on the guide rod, one side of the guide rod is provided with the proximity switch that cooperates with the float ball, the side wall of detection groove is provided with the water immersion sensor, and the outside of surveyor is provided with at least one wheel groove, and the wheel groove is provided with the through wheel, detect the water surface through the proximity switch and the water immersion sensor, avoid the misjudgment caused when the float ball is rising in the air flow and the obstruction block, improve the accuracy and reliability of detection, improve the obstacle surmounting ability and the passability through the through wheel of outside.

Description

Technical Field

[0001] This utility model relates to the field of groundwater exploration technology, specifically to a multi-layer groundwater level exploration device. Background Technology

[0002] Multi-layered groundwater, a special type of groundwater existence, involves an impermeable layer distributed between two aquifers. Groundwater level refers to the elevation of the water surface within an aquifer. The hydrogeology of multi-layered groundwater is a branch of geology, referring to the various changes and movements of groundwater in nature. Hydrogeology studies groundwater, primarily focusing on its distribution and formation patterns, physical properties and chemical composition, groundwater resources and their rational utilization, and the adverse effects of groundwater on engineering construction and mining, as well as their prevention and control. With scientific development and the needs of production and construction, hydrogeology has further branched into regional hydrogeology, groundwater dynamics, hydrogeochemistry, water supply hydrogeology, mineral deposit hydrogeology, and soil improvement hydrogeology, among others.

[0003] The survey of multi-layered groundwater levels is an important aspect of hydrogeological research. CN105136238A discloses a method for observing multi-layered groundwater levels. Currently, in multi-layered groundwater level surveys, a hydrogeological borehole is drilled at the location to be measured. The borehole depth allows it to penetrate multiple groundwater layers, with impermeable layers between the aquifers and above the top aquifer. A water-measuring tube, corresponding to the number of aquifers, is placed inside the hydrogeological borehole; this serves as the observation channel. Water from the same aquifer enters the water-measuring tube through its filter. Using the principle of communicating vessels, the water level in each measuring tube represents the water level of the corresponding aquifer. However, at greater ground depths, direct observation of the water level is difficult.

[0004] CN119714475A discloses a multi-layer groundwater level surveying device and method, which uses a floating foam ring on the water surface to contact a ring-shaped wireless touch controller to determine the highest water level. However, the foam ring is located on the outside of the sampling tube and is easily obstructed by airflow and obstacles, causing it to rise and touch the wireless touch controller, resulting in false readings. Utility Model Content

[0005] To address the aforementioned technical problems in the existing technology, this utility model provides a multi-layer groundwater level survey device that avoids or reduces the impact of airflow on water level surveying, thereby improving surveying efficiency and accuracy.

[0006] This utility model discloses a multi-layer groundwater level surveying device, including a surveyor, a detection groove provided at the lower end of the surveyor; a guide rod is longitudinally arranged in the detection groove, and a float is slidably mounted on the guide rod; a proximity switch cooperating with the float is provided on one side of the guide rod; a water immersion sensor is provided on the side wall of the detection groove; at least one wheel groove is provided on the outer side of the surveyor, and a through wheel is provided in the wheel groove.

[0007] Preferably, the water immersion sensor is installed at a lower position than the proximity switch.

[0008] The lower end of the guide rod is provided with a limit rod; the outer side of the through wheel protrudes from the outer wall of the surveyor.

[0009] Preferably, a first counterweight block and a second counterweight ring are respectively provided on the upper and lower sides of the detection groove;

[0010] The upper side of the detection groove is provided with at least one balancing through hole extending towards the upper end of the surveyor.

[0011] Preferably, a first water tank is provided on the outside of the detection tank.

[0012] The first water inlet of the first water tank is located on the upper side of the side wall of the detection tank, and the first drain outlet is located on the lower side of the side wall of the detection tank. A first solenoid valve is installed on the first drain outlet.

[0013] Preferably, a second water tank is provided on the outside of the first water tank.

[0014] The second water inlet of the second water tank is connected to the middle of the first water tank, and the second drain outlet extends toward the side wall of the detection tank; a second solenoid valve is provided on the second drain outlet.

[0015] Preferably, a first water level sensor and a second water level sensor are respectively provided on the side walls of the first water tank and the second water tank; a vortex channel is also provided on the side wall of the first water tank.

[0016] Preferably, the surveyor includes a head, a support, and a detection section connected in sequence; the detection groove is disposed at the lower end of the detection section; the passing wheels include a first passing wheel and a second passing wheel; at least three sets of first passing wheels are arranged circumferentially on the outer side of the head; and at least three sets of second passing wheels are arranged circumferentially on the lower side of the support.

[0017] Preferably, the support and the head are provided with mounting cavities, and the control module and the wireless module are installed in the mounting cavities; a lifting ring is provided at the upper end of the head.

[0018] Preferably, the present invention also includes a winding device and a base.

[0019] The base is installed on the upper side of the survey channel of the multi-layer groundwater foundation via foot pads;

[0020] A slewing bearing is provided on the base, and the winding device is installed on the inner ring of the slewing bearing;

[0021] The winding device is equipped with a winding roller, and the output end of the drive motor on one side of the winding device is connected to the drive shaft of the winding roller.

[0022] A rope is provided on the take-up roller, and one end of the rope is installed on the lifting ring;

[0023] A locking mechanism is provided on one side of the winding device;

[0024] The locking mechanism includes a side plate disposed on the winding unit, the side plate being mounted on the base by a locking pin;

[0025] The winding device or base is also provided with a control component; the control component is connected to the wireless module.

[0026] Preferably, the head has a conical or headless conical structure;

[0027] An inclined section is provided between the support section and the detection section, and a second through wheel is installed on the inclined section.

[0028] Compared with the prior art, the beneficial effects of this utility model are as follows: by detecting the water surface through proximity switches and water immersion sensors, false detections caused by the float rising due to air flow and obstructions are avoided, thereby improving the accuracy and reliability of detection; and by improving obstacle crossing ability and passability through the outer wheels. Attached Figure Description

[0029] Figure 1 This is an installation diagram of the multi-layer groundwater level survey device of this utility model;

[0030] Figure 2 This is a cross-sectional view of the winding device;

[0031] Figure 3 This is a schematic diagram of the surveying instrument;

[0032] Figure 4 This is a cross-sectional view of the surveying instrument;

[0033] Figure 5 This is a schematic diagram showing the distribution of the first and second water tanks;

[0034] Figure 6 This is a schematic diagram of the working principle of the surveying device;

[0035] Figure 7 This is a flowchart of the surveying method.

[0036] Marked in the diagram: 1. Surveying equipment; 11. Foundation; 12. Surveying access route;

[0037] 2. Winding device; 21. Drive motor; 22. Winding roller; 23. Drive shaft; 25. Rope; 26. Locking mechanism; 27. Locking pin; 28. Side plate; 29. ​​Control components;

[0038] 3. Base; 31. Slewing bearing; 32. Foot pads;

[0039] 5. Surveying instrument; 51. Head; 511. Lifting ring; 512. First guide wheel; 52. Balance through hole;

[0040] 53. Support unit; 532. Second through wheel; 533. Mounting cavity; 54. Detection unit; 55. Control module; 551. Wireless module; 56. First counterweight; 57. Wheel groove;

[0041] 6. Detection slot; 61. Guide rod; 62. Float; 63. Limit rod; 65. Proximity switch; 66. Water immersion sensor; 68. Second counterweight ring;

[0042] 7. First water tank; 71. First water inlet; 72. Swirl channel; 73. First drain outlet; 74. First solenoid valve; 75. First water level sensor;

[0043] 8. Second water tank; 81. Second water inlet; 82. Second drain outlet; 84. Second solenoid valve; 85. Second water level sensor. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0045] The present invention will now be described in further detail with reference to the accompanying drawings:

[0046] Example 1. As... Figure 1-6The multi-layer groundwater level surveying device 1 includes a surveyor 5, with a detection groove 6 at the lower end of the surveyor 5; a guide rod 61 is longitudinally arranged in the detection groove 6, and a float 62 is slidably mounted on the guide rod 61; a proximity switch 65 that cooperates with the float 62 is arranged on one side of the guide rod 61; a water immersion sensor 66 is arranged on the side wall of the detection groove 6; at least one wheel groove 57 is arranged on the outer side of the surveyor 5, and a through wheel is arranged in the wheel groove 57.

[0047] The proximity switch 65 and the water immersion sensor 66 are used to detect the water surface, avoiding false detections caused by the float 62 rising due to airflow and obstructions, thus improving the accuracy and reliability of the detection; the outer guide wheels improve obstacle crossing ability and passability.

[0048] More specifically, such as Figure 4 and Figure 5 The water immersion sensor 66 is installed lower than the proximity switch 65 to improve its detection accuracy and prevent the water surface from consistently failing to pass the sensor. A limit rod 63 is provided at the lower end of the guide rod 61. The limit rod 63 is fixed to the side wall of the detection groove 6, reducing the possibility of the float 62 being blocked by obstacles. The outer side of the guide wheel protrudes from the outer wall of the detector 5.

[0049] The detection groove 6 is provided with a first counterweight 56 ​​and a second counterweight ring 68 on its upper and lower sides, respectively, to maintain the orientation of the detector 5 and prevent it from flipping over. The upper side of the detection groove 6 is provided with at least one balance through hole 52 extending towards the upper end of the detector 5, which is used to eliminate air pressure and air resistance on the lower side, improve the accuracy of detection, and reduce the situation where the detector 5 cannot be lowered due to air resistance on the lower side.

[0050] A first water tank 7 is provided on the outside of the detection tank 6 for water sample collection. The first water inlet 71 of the first water tank 7 is located on the upper side of the side wall of the detection tank 6, and the first drain outlet 73 is located on the lower side of the side wall of the detection tank 6. A first solenoid valve 74 is provided on the first drain outlet 73, and the sample in the first water tank 7 can be discharged through the first drain outlet 73 and the first solenoid valve 74.

[0051] Example 2. Unlike Example 1, two water tanks are provided: a second water tank 8 is provided outside the first water tank 7. The second inlet 81 of the second water tank 8 is connected to the middle of the first water tank 7, and the second outlet 82 extends towards the side wall of the detection tank 6. A second solenoid valve 84 is provided on the second outlet 82. After impurities in the water sample settle in the first water tank 7, the purified water in the middle enters the second water tank 8 through the second inlet 81, thus purifying the water. Impurities can be discharged from the first outlet 73 as needed. A third solenoid valve may also be provided at the second inlet 81 of the second water tank 8.

[0052] More specifically, a first water level sensor 75 and a second water level sensor 85 are respectively installed on the side walls of the first water tank 7 and the second water tank 8 to detect the water intake. They can also be compared with the detection signal of the water immersion sensor to determine the water surface condition and avoid false detections caused by partial water mist or water splashes.

[0053] Optionally, a vortex channel 72 is also provided on the side wall of the first water tank 7. After the water enters and rotates along the vortex channel 72, the impurities have a higher density and can be separated. After separation, the impurities settle on the lower side of the first water tank 7.

[0054] like Figure 3 The surveyor 5 includes a head 51, a support 53 and a detection part 54 connected in sequence; the detection groove 6 is disposed at the lower end of the detection part 54.

[0055] Example 3. The guide wheels include a first guide wheel 512 and a second guide wheel 532. At least three sets of first guide wheels 512 are circumferentially arranged on the outer side of the head 51 of the surveyor 5; at least three sets of second guide wheels 532 are circumferentially arranged on the lower side of the support 53. This is used to improve passability.

[0056] During the lowering of the surveyor 5, the second guide wheel 532 improves the passability of the support 53. During the retrieval of the surveyor 5, due to air or water flow, the surveyor 5 may not align with the lower end of the survey channel 12. When it continues to be pulled upwards, the conical or headless conical structure of the head 51 is affected. The first guide wheel 512 allows the surveyor 5 to return well to the survey channel 12, improving the retrieval rate of the surveyor 5. An inclined section is provided between the support and the detection section, and the second guide wheel 532 is installed on the inclined section.

[0057] Figure 4 and Figure 5 The diagram shows a mounting cavity 533 disposed on the support 53 and the head 51, within which a control module 55 and a wireless module 551 are mounted; a lifting ring 511 is provided at the upper end of the head 51. However, this is not a limitation; necessary electrical components such as batteries may also be installed within the mounting cavity 533.

[0058] Figure 6 The control method diagram is shown. The control component 29 on the winder 2 or base 3 is connected to the control module 55 via the wireless module 551. It is used to receive signals from the proximity switch 65, the water immersion sensor 66, the first water level sensor 75, and the second water level sensor 85. It is also used to control the first solenoid valve 74 and the second solenoid valve 84.

[0059] like Figure 1 and Figure 2The base 3 is mounted on the upper side of the exploration channel 12 of the multi-layer groundwater foundation 11 via foot pads 32. A slewing bearing 31 is provided on the base 3, and the winding device 2 is mounted on the inner ring of the slewing bearing 31. A winding roller 22 is provided inside the winding device 2, and the output end of the drive motor 21 on one side of the winding device 2 is connected to the drive shaft 23 of the winding roller 22. A rope 25 is provided on the winding roller 22, and one end of the rope 25 is mounted on the lifting ring 511. A locking mechanism 26 is provided on one side of the winding device 2. The locking mechanism 26 includes a side plate 28 provided on the winding device 2, and the side plate 28 is mounted on the base 3 via a locking pin 27. A control component 29 is also provided on the winding device 2 or the base 3. The control component 29 is connected to the wireless module 551. The control component 29 is also used to control the drive motor 21, thereby controlling the lowering or retrieval of the exploration device 5. When it is difficult to retrieve the surveyor 5, the rotating retractor 2 can be used to provide rotational tension to the surveyor 5, helping the surveyor 5 to get out of the obstacle.

[0060] More specifically, one end of the rope 25 extends downward through the through hole in the inner ring of the slewing bearing 31.

[0061] like Figure 7 The surveying method using the aforementioned surveying device 1 includes the following steps:

[0062] Step S1: Lower the surveyor 5 into the survey channel 12 using rope 25.

[0063] Step S2: Determine whether the first condition is met: receiving the feedback signal from the proximity switch 65 and the water immersion signal from the water immersion sensor 66, and the water immersion signal is stable within a first threshold time. Specifically, this means that the proximity switch 65 detects the detection signal of the iron piece on the float 62 and the water immersion signal from the water immersion sensor 66.

[0064] If the first condition is met, proceed to step S3: obtain the first distance between the float 62 and the ring 511 of the surveyor 5, and obtain the second distance of the rope 25 being lowered, then proceed to step S5.

[0065] The first distance can be measured through actual testing and can only be provided during the design and production of the surveyor 5; the second distance can be measured.

[0066] If the first condition is not met, proceed to step S4: continuously monitor the signals from proximity switch 65 and water immersion sensor 66.

[0067] Step S5: Calculate the water level of the multi-layer groundwater based on the sum of the first distance and the second distance.

[0068] The first condition is not limited to this and may also include feedback signals from the first water level sensor 75 and / or the second water level sensor 85. The feedback time of the first water level sensor 75 and the second water level sensor 85 lags behind that of the proximity switch 65 and the water immersion sensor 66.

[0069] In some of the processes described in the specification and accompanying drawings of this application, multiple operations appear in a specific order. However, it should be clearly understood that these operations may not be executed in the order they appear herein, or they may be executed in parallel. The operation numbers, such as S1, S2, etc., are merely used to distinguish different operations and do not represent any execution order. Furthermore, these processes may include more or fewer operations, and these operations may be executed sequentially or in parallel. It should be noted that the descriptions such as "first" and "second" in this document are used to distinguish different messages, devices, modules, etc., and do not represent a sequential order, nor do they limit "first" and "second" to different types. It should also be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0070] The surveying device 1 of this utility model avoids false measurements caused by obstacles by placing the float 62 in the inner detection groove; avoids false measurements caused by airflow by cooperating with the proximity switch 65 and the water immersion sensor 66; improves the accuracy and reliability of water level surveying; and balances the pressure difference between the upper and lower sides by using the balance through hole 52 to keep the water level rising, and can also reduce the air resistance when the surveyor 5 is lowered.

[0071] Multi-layer water sampling is performed using the first water tank 7 and the second water tank 8, with the water samples undergoing preliminary purification in the first water tank. The head shape and the design of two sets of guide wheels improve the ease of lowering and rising, thus increasing the probe's recovery rate.

[0072] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-layered groundwater level surveying apparatus, characterized by, Includes a surveyor (5), the lower end of which is provided with a detection groove (6); A guide rod (61) is longitudinally arranged inside the detection groove (6), and a float (62) is slidably mounted on the guide rod (61); A proximity switch (65) that cooperates with the float (62) is provided on one side of the guide rod (61); A water immersion sensor (66) is provided on the side wall of the detection tank (6); The outer side of the surveyor (5) is provided with at least one wheel groove (57), and a through wheel is provided in the wheel groove (57).

2. The multi-layered groundwater level surveying device according to claim 1, wherein, The water immersion sensor (66) is installed at a position lower than that of the proximity switch (65); A limit rod (63) is provided at the lower end of the guide rod (61); The outer side of the through wheel protrudes from the outer wall of the surveyor (5).

3. The multi-layered groundwater level surveying device according to claim 1, wherein The detection groove (6) is provided with a first counterweight block (56) and a second counterweight ring (68) on its upper and lower sides respectively; The upper side of the detection groove (6) is provided with at least one balanced through hole (52) extending towards the upper end of the surveyor (5).

4. The multi-layered groundwater level surveying device according to claim 1, wherein A first water tank (7) is provided on the outside of the detection tank (6). The first water inlet (71) of the first water tank (7) is located on the upper side of the side wall of the detection tank (6), and the first drain outlet (73) is located on the lower side of the side wall of the detection tank (6). A first solenoid valve (74) is provided on the first drain outlet (73).

5. The multi-layered groundwater level surveying device according to claim 4, wherein, A second water tank (8) is provided on the outside of the first water tank (7). The second water inlet (81) of the second water tank (8) is connected to the middle of the first water tank (7), and the second drain outlet (82) extends toward the side wall of the detection tank (6); a second solenoid valve (84) is provided on the second drain outlet (82).

6. The multi-layered groundwater level surveying device according to claim 5, wherein, A first water level sensor (75) and a second water level sensor (85) are respectively installed on the side walls of the first water tank (7) and the second water tank (8); The first water tank (7) is also provided with a vortex channel (72) on its side wall.

7. The multi-layered groundwater level surveying device according to claim 4, wherein The surveyor (5) includes a head (51), a support (53), and a detection (54) connected in sequence; The detection groove (6) is located at the lower end of the detection section (54); The through wheels include a first through wheel (512) and a second through wheel (532); At least three sets of first passage wheels (512) are provided circumferentially on the outer side of the head (51); At least three sets of second passage wheels (532) are provided circumferentially on the lower side of the support (53).

8. The multi-layered groundwater level surveying device according to claim 7, wherein, The support (53) and head (51) are provided with mounting cavities (533), and the control module (55) and wireless module (551) are installed in the mounting cavities (533); A lifting ring (511) is provided at the upper end of the head (51).

9. The multi-layered groundwater level surveying device according to claim 8, wherein, It also includes a rewinder (2) and a base (3), The base (3) is installed on the upper side of the survey channel (12) of the multi-layer groundwater foundation (11) via foot pads (32); A slewing bearing (31) is provided on the base (3), and the winding device (2) is installed on the inner ring of the slewing bearing (31); The winding device (2) is equipped with a winding roller (22), and the output end of the drive motor (21) on one side of the winding device (2) is connected to the drive shaft (23) of the winding roller (22). A rope (25) is provided on the take-up roller (22), and one end of the rope (25) is installed on the lifting ring (511); A locking mechanism (26) is provided on one side of the winding device (2); The locking mechanism (26) includes a side plate (28) disposed on the winding unit (2), the side plate (28) being mounted on the base (3) by a locking pin (27); The winding device (2) or the base (3) is also provided with a control component (29); the control component (29) is connected to the wireless module (551).

10. The multi-layered groundwater water level surveying device according to claim 7, wherein, The head (51) has a cone-shaped or headless cone-shaped structure; An inclined section is provided between the support section (53) and the detection section (54), and a second pass wheel (532) is installed on the inclined section.

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