A portable groundwater depth-specific sampling device

Abstract

The present application relates to the technical field of groundwater sampling, in particular to a portable groundwater fixed-depth sampling device, which comprises a sampler and a storage box, a driving element is fixedly connected to the inner side wall of the storage box, a wire reel is coaxially fixedly connected to the output shaft of the driving element, a sampler wire is wound on the wire reel, one end of the sampler wire away from the wire reel is fixedly connected to the sampler, and a wire hole is formed in the top wall of the storage box; a door frame is formed in the outer wall of one side of the storage box, and a box door is hingedly connected to the door frame; a connecting rod is fixedly connected to the outer wall of one side of the storage box, a pay-off assembly for placing the sampler into a well mouth is arranged on one end of the connecting rod close to the storage box; a base is fixedly connected to one end of the connecting rod away from the storage box, and a support platform assembly for providing support to the whole device in the well mouth is arranged on the base. The present application can be quickly deployed and stored in the field or complex environment to quickly monitor the groundwater.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of groundwater sampling, in particular to a portable groundwater depth sampling device. BACKGROUND

[0002] In the field of environmental protection, regular monitoring of groundwater is an important means of assessing water quality, pollution sources and pollution levels. Groundwater depth sampling devices need to be able to meet the demand for rapid and accurate collection of groundwater samples in the field or complex environment. High-strength, corrosion-resistant and lightweight materials are widely used in portable sampling devices, such as ABS materials. The use of these materials improves the durability and portability of the device.

[0003] In the prior art, groundwater depth sampling devices usually use a sampler to place a pre-set length of cable in a groundwater well through a line disc for sampling, and usually rely on a winding device to control the release and recovery of the cable to achieve depth sampling of the sampler in the groundwater. However, the winding device is often heavy and difficult to store, which not only increases the complexity of the operation, but also may affect the efficiency and accuracy of the sampling.

[0004] In summary, how to solve the problem of the heavy and difficult-to-store winding device in the existing groundwater depth sampling device has become a difficult problem to be solved in the field at present, so it is necessary to propose a portable groundwater depth sampling device. SUMMARY

[0005] To solve the above problems, the present application provides a portable groundwater depth sampling device which can be quickly deployed and stored in the field or complex environment to quickly monitor groundwater.

[0006] In order to achieve the above purpose, the technical scheme of the present application is as follows: a portable groundwater depth sampling device, comprising a sampler, a storage box and a controller, a driving member is fixedly connected to the inner side wall of the storage box, and the controller is used to control the opening and closing of the driving member; a winding disc is coaxially fixedly connected to the output shaft of the driving member, a sampler cable is wound on the winding disc, and the end of the sampler cable away from the winding disc is fixedly connected with the sampler; the controller is used to control the sampling operation of the sampler on the groundwater.

[0007] A wire hole is opened in the top wall of the storage box; a door frame is opened in the outer wall of one side of the storage box, and a box door is hingedly connected in the door frame; a connecting rod is fixedly connected to the outer wall of one side of the storage box, and a line releasing assembly for releasing the sampler into the well mouth and releasing the line is arranged on the storage box near the connecting rod.

[0008] A base is fixedly connected to the end of the connecting rod away from the storage box, a sampling hole is opened in the base, a circular groove is opened in the top of the base, and a plurality of L-shaped rods are slidingly fitted in the circular groove; a support platform assembly for providing support to the whole device in the well mouth is arranged on the base.

[0009] The L-shaped rod is provided with a folding assembly for folding the support platform assembly.

[0010] The technical principle of the above scheme is as follows:

[0011] Before the groundwater depth sampling, the sampler is taken out from the storage box and connected with the sampler line, then the base of the device is aligned and placed on the wellhead of the sampling well, then the folding assembly is used to unfold the support platform assembly, at the same time, the sampler is aligned with the wellhead and the wire laying operation is performed, the controller controls the driving part to drive the winding reel to rotate, then the sampler line wound on the winding reel is used to put the sampler into the specified depth of the groundwater for sampling operation, at the same time, various detection instruments can be placed on the support platform assembly, which is convenient for sampling sample detection, after sampling is completed, the detection instrument and the sampler and sample can be put into the storage box for storage, at the same time, the folding assembly is used to shrink the support platform assembly, and the storage box is taken away, so that the portable groundwater depth sampling device is realized.

[0012] The above scheme has the following beneficial effects:

[0013] 1、The portable groundwater depth sampling device comprising a sampler, a storage box and a controller is designed, and the driving part and the winding reel are used to control the release and recovery of the sampler line, so that the depth sampling operation of the sampler is realized, the problem of heavy and difficult storage of the traditional winding device is avoided, and the sampling efficiency and accuracy are improved.

[0014] 2、The storage box comprising a door frame, a box door and a connecting rod is designed, and the folding assembly and the support platform assembly are used, so that the whole device can be stably placed on the wellhead during sampling, and can be conveniently folded and stored when not in use, thereby improving the portability and practicality of the device.

[0015] 3、The controller controls the driving part and the sampler, so that the sampling process is accurately controlled, and the detection instrument can be placed on the support platform assembly, which is convenient for sample detection after sampling, thereby improving the convenience and practicality of sampling.

[0016] Further, the folding assembly comprises a plurality of fixed blocks arranged in a ring shape above the base; the L-shaped rods are fixedly connected to the bottom of the fixed blocks adjacent to them at the end away from the circular groove; the fixed block adjacent to the storage box is fixedly connected to the side wall of the storage box; the fixed blocks are symmetrically and rotatably connected with gears, and the gears adjacent to each other are meshed with each other; a connecting rod is arranged between the adjacent fixed blocks, and the ends of the connecting rod are fixedly connected with the gears adjacent to them; a N-shaped rod is arranged on the connecting rod away from the storage box, and the end of the connecting rod away from the gear is hingedly connected to the top of the N-shaped rod adjacent to it, and the bottom end of the N-shaped rod is located in the circular groove and is slidably connected with the circular groove.

[0017] Beneficial effects: through the design of the folding assembly, the support platform assembly can be conveniently unfolded or retracted, so that the whole device can provide stable support when sampling, and the volume of the device can be reduced when not in use, facilitating carrying and storage, improving the portability and flexibility of the device.

[0018] Further, the support platform assembly comprises a plurality of fan-shaped plates, a sample placing hole is opened in the base, a circular groove is opened in the top of the base, a plurality of L-shaped rods are slidably connected with the circular groove, the ends of the L-shaped rods away from the circular groove are fixedly connected to the bottom of the fixed blocks adjacent to them; the bottom end of the N-shaped rod is located in the circular groove and is slidably connected with the circular groove; the side walls of the fan-shaped plates are fixedly connected with the side walls of the connecting rods adjacent to them, and the adjacent fan-shaped plates are hingedly connected with each other.

[0019] Beneficial effects: the design of the support platform assembly enables the device to provide a larger working area when sampling, facilitating the placement of detection instruments and sampling tools, and the hinged design between the fan-shaped plates enables the support platform assembly to be flexibly unfolded or folded, improving the adaptability and portability of the device.

[0020] Further, the wire releasing assembly comprises a first connecting rod, the bottom end of the first connecting rod is hingedly connected with the side wall of the storage box, the top end of the first connecting rod is hingedly connected with a second connecting rod, and the top ends of the second connecting rod are fixedly connected with pulleys; the end of the sampler wire away from the winding disc passes through the wire hole and the pulley and is wound on the pulley.

[0021] Beneficial effects: the design of the wire releasing assembly enables the sampler wire to be released and recovered more smoothly, avoiding the winding or jamming phenomenon of the cable during the release or recovery process, improving the efficiency and accuracy of sampling.

[0022] Further, a wire releasing length sensor is fixedly connected to the wire hole, and the controller is used to receive the wire releasing length signal sent by the wire releasing length sensor.

[0023] Beneficial effects: through the design of the wire releasing length sensor, the wire releasing length of the sampler can be monitored in real time, so as to realize accurate control of the lowering depth of the sampler, improving the accuracy and reliability of sampling.

[0024] Further, the sampler is fixedly connected with a water contact sensor at the bottom, and the controller is configured to receive a contact signal sent by the water contact sensor that the sampler contacts with underground water.

[0025] Beneficial effects: the design of the water contact sensor can monitor whether the sampler contacts with underground water in real time, thereby ensuring that the sampler performs sampling operation at the correct depth and avoiding sampling failure caused by the sampler not contacting with underground water.

[0026] Further, a depth sensor is fixedly connected to the outer side wall of the sampler, and the controller is configured to receive a depth signal of underground water sent by the depth sensor.

[0027] Beneficial effects: the design of the depth sensor can monitor the depth information of underground water in real time, thereby providing accurate data support for sampling operation and helping to evaluate the dynamic change of underground water level.

[0028] Further, an anticorrosion layer is coated on the outer side wall of the sampler.

[0029] Beneficial effects: the design of the anticorrosion layer can improve the corrosion resistance of the sampler, prolong the service life of the sampler, and help to protect the sampler from being eroded by chemical substances in underground water.

[0030] Further, a geological radar sensor is fixedly connected to the outer side wall of the sampler, and the controller is configured to receive geological layer structure data sent by the geological radar sensor.

[0031] Beneficial effects: the design of the geological radar sensor can monitor the geological layer structure information in real time, thereby providing more comprehensive data support for sampling operation and helping to evaluate the geological background and hydrogeological conditions of underground water.

[0032] Further, a handle is fixedly connected to the outer wall of the side of the storage box away from the first connecting rod.

[0033] Beneficial effects: the design of the handle makes the whole device more convenient to carry and move, thereby improving the portability and practicability of the device.

[0034] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a top view of the portable underground water depth sampling device in the embodiment of the application.

[0036] Figure 2 It is a bottom view of the portable underground water depth sampling device in the embodiment of the application.

[0037] Figure 3 This is a front sectional view of the storage box in an embodiment of the present invention.

[0038] Figure 4 This is a top sectional view of the base in an embodiment of the present invention.

[0039] Figure 5 This is a rear view of the portable groundwater depth sampling device in an embodiment of the present invention.

[0040] The reference numerals in the accompanying drawings of the instruction manual include: 1. Sampler; 2. Storage box; 3. Drive unit; 4. Winding reel; 5. Sampler wire; 6. Wire hole; 7. Box door; 8. Connecting rod; 9. Fixing block; 10. Gear; 11. Connecting rod; 12. U-shaped rod; 13. Fan-shaped plate; 14. Loosening hole; 15. Circular groove; 16. L-shaped rod; 17. First connecting rod; 18. Second connecting rod; 19. Pulley; 20. Handle; 21. Base. Detailed Implementation

[0041] The following detailed description illustrates the specific implementation method:

[0042] Example 1:

[0043] As attached Figures 1-5 As shown: A portable groundwater depth sampling device includes a sampler 1, a storage box 2, and a controller. A drive unit 3 is fixedly connected to the inner wall of the storage box 2 by screws. The controller is used to control the opening and closing of the drive unit 3. A winding reel 4 is coaxially fixedly connected to the output shaft of the drive unit 3 by screws. A sampler wire 5 is wound on the winding reel 4. The end of the sampler wire 5 away from the winding reel 4 is fixedly connected to the sampler 1 by screws. The controller is used to control the sampling operation of the sampler 1 on groundwater.

[0044] The storage box 2 has a wire hole 6 on its top wall; a door frame is opened on one side of the outer wall of the storage box 2, and a box door 7 is hinged inside the door frame; a connecting rod 8 is fixedly connected to one side of the outer wall of the storage box 2 by screws, and a wire laying assembly for placing the sampler 1 into the well opening and laying the wire is provided on the storage box 2 near the connecting rod 8.

[0045] The end of the connecting rod 8 away from the storage box 2 is fixedly connected to the base 21 by screws. The base 21 has a layout hole 14 and a circular groove 15 on the top of the base 21. Several L-shaped rods 16 are slidably fitted on the circular groove 15. The base 21 is equipped with a support platform assembly for providing support for the entire device at the wellhead.

[0046] The L-shaped rod 16 is equipped with a folding assembly for folding the support platform assembly.

[0047] The folding assembly comprises several fixed blocks 9 arranged in a "C" shape above the base 21; the fixed blocks 9 adjacent to the storage box 2 are fixedly connected with the side wall of the storage box 2 by screws; the ends of the L-shaped rods 16 away from the circular grooves 15 are integrally formed with the bottoms of the fixed blocks 9 adjacent thereto; the fixed blocks 9 are symmetrically and rotatably provided with gears 10, and the gears 10 adjacent to each other are meshed with each other.

[0048] A connecting rod 11 is arranged between the adjacent fixed blocks 9, and the two ends of the connecting rod 11 are integrally formed with the gears 10 adjacent thereto.

[0049] A L-shaped rod 12 is symmetrically arranged in the circular groove 15, and the bottom end of the L-shaped rod 12 is slidably connected with the circular groove 15.

[0050] The gears 10 on the fixed blocks 9 at the two ends of the "C" shape are integrally formed with a hinge rod 22, and the end of the hinge rod 22 away from the gear 10 is hingedly connected with the top end of the L-shaped rod 12 adjacent thereto.

[0051] The supporting platform assembly comprises several fan-shaped plates 13; the side walls of the fan-shaped plates 13 are fixedly welded with the side walls of the connecting rods 11 adjacent thereto, and the adjacent fan-shaped plates 13 are hingedly connected with each other.

[0052] The pay-off assembly comprises a first connecting rod 17, the bottom end of the first connecting rod 17 is hingedly connected with the side wall of the storage box 2, the top end of the first connecting rod 17 is hingedly connected with a second connecting rod 18, and the two ends of the top of the second connecting rod 18 are fixedly connected with pulleys 19 by screws; the sampler wire 5 passes through the wire hole 6 and the pulley 19 and is wound on the pulley 19 at the end away from the winding drum 4.

[0053] A pay-off length sensor is fixedly connected on the wire hole 6 by screws, and the controller is used for receiving the pay-off length signal sent by the pay-off length sensor.

[0054] A water contact sensor is fixedly connected on the bottom of the sampler 1 by screws, and the controller is used for receiving the contact signal that the sampler 1 contacts with the underground water sent by the water contact sensor.

[0055] A depth sensor is fixedly connected on the outer side wall of the sampler 1 by screws, and the controller is used for receiving the depth signal of the underground water sent by the depth sensor.

[0056] A geological radar sensor is fixedly connected on the outer side wall of the sampler 1 by screws, and the controller is used for receiving the geological layer structure data sent by the geological radar sensor.

[0057] A handle 20 is fixedly connected on the outer wall of the storage box 2 away from the first connecting rod 17 by screws.

[0058] The specific implementation process is as follows:

[0059] In this embodiment, the sampler 1 is used to collect water samples from groundwater; the sampler 1 is designed in a sealed conical structure to prevent the water sample from being contaminated during the collection process; the sampler 1 is internally provided with a water sample storage cavity for storing the collected water sample; the sampler 1 is provided with a water inlet at the bottom, the water inlet is in communication with the water sample storage cavity, and the water inlet is provided with a sampling valve; when the sampler 1 is lowered to the specified depth, the sampling valve of the water inlet is opened to allow groundwater to enter the water sample storage cavity; after sampling is completed, the sampling valve is closed to prevent water sample leakage; and the controller is used to control the opening and closing of the sampling valve.

[0060] In this embodiment, the initial state of the folding assembly is the unfolded state; for example, when groundwater depth sampling is performed, the depth value of the groundwater to be sampled is input to the controller, then the sampler 1 is taken out from the storage box 2 and connected with the sampler line 5; since the first connecting rod 17 is hingedly connected to the side wall of the storage box 2 at the bottom end, the first connecting rod 17 is hingedly connected with the second connecting rod 18 at the top end, and the second connecting rod 18 is fixedly connected with the pulley 19 at both ends of the top portion by screws, at this time, the user can rotate the first connecting rod 17 to be perpendicular to the storage box 2, open the second connecting rod 18 to be perpendicular to the first connecting rod 17, pass the sampler line 5 through the pulley 19 and place it above the well mouth, and the controller records the line length at this time as 0 meters. Figure 1 For example, the user controls the driving member 3 to rotate the winding drum 4 through the controller to release the sampler line 5 wound on the winding drum 4; in this embodiment, the driving member 3 is a speed reducer, at this time, the sampler 1 can enter the well mouth to the specified depth due to the action of gravity, at this time, the controller is fixedly connected with the line hole 6 on the reel length sensor by screws, and the reel length is recorded in real time to realize real-time monitoring of the depth value of the sampler 1 to the ground.

[0061] Figure 3 For example, the user controls the driving member 3 to rotate the winding drum 4 through the controller to release the sampler line 5 wound on the winding drum 4; in this embodiment, the driving member 3 is a speed reducer, at this time, the sampler 1 can enter the well mouth to the specified depth due to the action of gravity, at this time, the controller is fixedly connected with the line hole 6 on the reel length sensor by screws, and the reel length is recorded in real time to realize real-time monitoring of the depth value of the sampler 1 to the ground. Figure 1 When the sampler 1 contacts with the groundwater, the water contact sensor sends a signal to the controller, and the controller records the reel length at this time as the depth value of the groundwater level at this position to the ground, and continues to pay out the line for groundwater depth sampling.

[0062] When the controller monitors that the sampler 1 reaches the depth value of the groundwater to be sampled, the controller sends a control signal to control the speed reducer to be closed, at this time, the sampling operation is performed, the controller sends a control signal to control the sampling valve on the sampler 1 to be opened, at this time, the groundwater at this depth position can enter the water sample storage cavity from the water inlet of the sampler 1, after the sampling valve is opened for 15 seconds, the controller sends a control signal to close the sampling valve, at this time, water sample leakage can be prevented, after the sampling is completed, the controller controls the speed reducer to drive the winding drum 4 to rotate to recover the sampler line 5, and the sampler 1 is lifted to the well mouth.

[0063]

[0064] ​​During the sampling process, a depth sensor fixed to the outer wall of sampler 1 via screws can transmit the depth data from the sampling location to the groundwater surface to the controller in real time. The controller records the depth data from the sampling location to the groundwater surface, providing data support for subsequent sample analysis. At the same time, a ground-penetrating radar sensor fixed to the outer wall of sampler 1 via screws can transmit the geological data of the sampling location to the controller in real time. The controller records the geological data of the location, also providing data support for subsequent sample analysis.

[0065] by Figure 1 For example, during sampling, various testing instruments can be placed on the fan-shaped flat plate 13 to facilitate the user's testing of the sample.

[0066] by Figure 1 and Figure 2 For example, after sampling is completed, the user can open the door 7 on the storage box 2 and put the testing instrument, sampler 1, and sample into the storage box 2 for storage. Then, the first connecting rod 17 and the second connecting rod 18 are folded parallel to the fan-shaped plate 13. Subsequently, since the bottom ends of the U-shaped rods 12 are all located in the circular grooves 15 and are slidably engaged with the circular grooves 15, and the adjacent fan-shaped plates 13 are hinged to each other, the user can lift the fan-shaped plate 13 adjacent to the U-shaped rods 12 by hand, so that they fold into an inverted "V" shape. Then, the user can use their hands to push the U-shaped rods 12 apart and slide them out relative to each other along the circular grooves 15 on the base 21. Figure 1 and Figure 4 For example, the user manually separates the U-shaped rods 12 so that the bottom of the U-shaped rods 12 is within the circular groove 15, and they slide relative to each other along the circular groove 15. Since the top of the U-shaped rod 12 is hinged to the hinge rod 22, the fan-shaped plate 13 adjacent to the U-shaped rod 12 is raised and folded into an inverted "V" shape. Figure 1 For example, when the hinge rod 22 is tilted upward, it can drive the adjacent gear 10 to rotate. Since the gears 10 are all rotatably connected on the fixed block 9, and the gears 10 mesh with each other, when the hinge rod 22 is tilted upward, it can drive the fixed block 9 to rise upward, thereby driving the adjacent connecting rod 11 to tilt downward. Figure 4 For example, when the bottom of the U-shaped rod 12 moves to a position close to the storage box 2, the adjacent connecting rods 11 are all in a "V" shape, thus achieving the effect of folding all connecting rods 11. Since the end of the L-shaped rod 16 away from the circular groove 15 is integrally formed with the bottom of the adjacent fixing block 9, the two symmetrical L-shaped rods 16 can provide support for the fixing block 9 while the fixing block 9 moves with the connecting rod 11, increasing the stability of the connecting rod 11 and the fixing block 9 during the folding process.

[0067] When all the connecting rods 11 are folded into a "V", the adjacent fan-shaped plates 13 can be folded into a "fan" shape when the connecting rods 11 are in a "V" shape, and finally the folding and storage effect of the entire fan-shaped plate 13 is achieved.

[0068] The unfolding process of the fan-shaped plate 13 is the same as above. Only the user needs to pull the L-shaped rod 16 to be relatively folded on the base 21 to achieve the unfolding operation of the fan-shaped plate 13. At the same time, when the fan-shaped plate 13 is unfolded, it can also provide a stable support effect for the sampler 1 during sampling.

[0069] After sampling is completed, the user can put the detection instrument, the sampler 1 and the sample into the storage box 2 for storage. The user can take away the storage box 2 through the handle 20, which is convenient for sampling operation at the next sampling position, so as to realize rapid unfolding and storage in the field or complex environment to quickly monitor underground water.

[0070] Embodiment 2:

[0071] As shown in the accompanying drawings Figure 1 The difference from embodiment 1 is that an anti-corrosion layer is coated on the outer wall of the sampler 1. In this embodiment, the anti-corrosion layer is a Teflon coating.

[0072] The specific implementation process is as follows: the design of the anti-corrosion Teflon coating can improve the corrosion resistance of the sampler 1, prolong the service life of the sampler 1, and also help to protect the sampler 1 from chemical substances in underground water.

[0073] Obviously, the above embodiments are only examples for clear illustration, and not limitation of the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A portable groundwater depth sampling device, comprising a sampler (1), characterized in that, It also includes a storage box (2) and a controller. A drive unit (3) is fixedly connected to the inner wall of the storage box (2), and the controller is used to control the opening and closing of the drive unit (3). A winding disc (4) is coaxially fixedly connected to the output shaft of the drive unit (3). A sampler wire (5) is wound on the winding disc (4), and the end of the sampler wire (5) away from the winding disc (4) is fixedly connected to the sampler (1). The controller is used to control the sampling operation of the sampler (1) on the groundwater. A wire hole (6) is opened on the top wall of the storage box (2). A door frame is opened on one side of the outer wall of the storage box (2), and a box door (7) is hinged inside the door frame. A connecting rod (8) is fixedly connected to the storage box (2). A wire laying assembly for placing the sampler (1) into the wellhead and laying the wire is provided on the storage box (2) near the connecting rod (8). A base (21) is fixedly connected to the end of the connecting rod (8) away from the storage box (2). A sampling hole (14) is opened on the base (21). A circular groove (15) is opened on the top of the base (21). A support platform assembly for providing support for the whole device at the wellhead is provided on the base (21). An L-shaped rod (16) is symmetrically and slidably fitted on the circular groove (15). A folding assembly for folding the support platform assembly is provided on the L-shaped rod (16). The folding assembly includes several fixing blocks (9) arranged in a "C" shape above the base (21); the fixing blocks (9) adjacent to the storage box (2) are fixedly connected to the side wall of the storage box (2); the ends of the L-shaped rods (16) away from the circular groove (15) are fixedly connected to the bottom of the fixing blocks (9) adjacent to them; gears (10) are symmetrically fitted on the fixing blocks (9) and rotated, and the adjacent gears (10) mesh with each other; a connecting rod (11) is provided between the adjacent fixing blocks (9), and both ends of the connecting rod (11) are fixedly connected to the gears (10) adjacent to it; a U-shaped rod (12) is symmetrically provided in the circular groove (15), and the bottom end of the U-shaped rod (12) is slidably fitted with the circular groove (15); the gears (10) located on the fixing blocks (9) at both ends of the "C" shape are fixedly connected to the hinge rods (22), and the ends of the hinge rods (22) away from the gears are hinged to the top of the U-shaped rods (12) adjacent to them.

2. The portable groundwater depth sampling device according to claim 1, characterized in that, The support platform assembly includes several sector-shaped plates (13), the side walls of which are fixedly connected to the side walls of the adjacent connecting rods (11), and adjacent sector-shaped plates (13) are hinged to each other.

3. The portable groundwater depth sampling device according to claim 2, characterized in that, The wire feeding assembly includes a first connecting rod (17), the bottom end of which is hinged to the side wall of the storage box (2), and a second connecting rod (18) is hinged to the top end of the first connecting rod (17). Both ends of the top of the second connecting rod (18) are fixedly connected to pulleys (19). The sampler wire (5) passes through the wire hole (6) and the pulley (19) at the end away from the winding reel (4) and is wound on the pulley (19).

4. The portable groundwater depth sampling device according to claim 3, characterized in that, A wire length sensor is fixedly connected to the wire hole (6), and the controller is used to receive the wire length signal sent by the wire length sensor.

5. The portable groundwater depth sampling device according to claim 4, characterized in that, A water contact sensor is fixedly connected to the bottom of the sampler (1), and the controller is used to receive the contact signal sent by the water contact sensor between the sampler (1) and the groundwater.

6. The portable groundwater depth sampling device according to claim 5, characterized in that, A depth sensor is fixedly connected to the outer wall of the sampler (1), and the controller is used to receive the depth signal of the groundwater sent by the depth sensor.

7. The portable groundwater depth sampling device according to claim 6, characterized in that, The outer wall of the sampler (1) is coated with an anti-corrosion layer.

8. The portable groundwater depth sampling device according to claim 7, characterized in that, A ground-penetrating radar sensor is fixedly connected to the outer wall of the sampler (1), and the controller is used to receive geological layer structure data sent by the ground-penetrating radar sensor.

9. The portable groundwater depth sampling device according to claim 8, characterized in that, A handle (20) is fixedly connected to the outer wall of the storage box (2) on the side away from the first link (17).

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