Underground water sampling equipment for environmental monitoring

Abstract

The utility model discloses underground water sampling equipment for environmental monitoring, which relates to the technical field of underground water sampling equipment, and comprises a rack, a winding drum is arranged in the rack, a cable is arranged on the winding drum, one end of the cable is connected with a sampling barrel, a wire arranging mechanism is arranged on the rack, a water removing mechanism is arranged on the wire arranging mechanism, and the sampling barrel is connected with the water removing mechanism. A cleaning mechanism is arranged at the front end of the water removal mechanism, the cleaning mechanism is provided with a cleaning cabin, and a cleaning spray head is arranged at the top of the cleaning cabin. During use, by arranging the cleaning mechanism and the water removal mechanism, impurities on the outer surface of the cable can be cleaned and water can be purged when the cable is recycled; therefore, the cable recovered into the rack can be ensured to be dry and clean, wireless transmission is replaced by the cable, the control on the electromagnetic valve is more accurate and timely, the problem of passive sampling caused by unstable signals is prevented, and a traction effect on the sampling barrel can also be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater sampling equipment, in particular to groundwater sampling equipment for environmental monitoring. Background Art

[0002] Environmental monitoring includes groundwater monitoring. Groundwater monitoring is the monitoring of groundwater levels, water quality and other data within the jurisdiction by the groundwater monitoring management department, so as to timely grasp the dynamic changes and provide long-term protection for groundwater. Groundwater sampling equipment is used to sample groundwater.

[0003] The existing utility model patent with announcement number CN 218212189 U and announcement date 2023.01.03 discloses a groundwater sampling device for environmental monitoring, including a mounting plate, a fixed plate symmetrically arranged on the upper end of the mounting plate, a motor fixedly connected to one side of the fixed plate on the left side, a winding roller fixedly connected to the output shaft of the motor, a traction rope wound on the outer surface of the winding roller, one end of the traction rope fixedly connected to the traction plate, a first sampling barrel fixedly connected to the lower end of the traction plate, a second sampling barrel fixedly connected to the lower end of the first sampling barrel, a first water level sensor fixedly connected to the inner wall of the first sampling barrel, a first water inlet opened on one side of the first sampling barrel, a first water outlet opened on the other side of the first sampling barrel, and a second water level sensor fixedly connected to the inner wall of the second sampling barrel.

[0004] In this patent, by setting the first sampling tube and the second sampling tube, groundwater at different depths can be sampled at one time, thereby improving the sampling efficiency. However, a problem is also exposed in this patent: the opening and closing of the first solenoid valve 19 and the second solenoid valve 23 are performed by receiving the wireless signal transmitted by the staff. However, when the wireless signal is transmitted underwater, it is affected by the environment and cannot communicate in real time, which often makes the sampler passive underwater, and sometimes even the solenoid valve cannot be opened normally for sampling. At the same time, there are many impurities on the surface when the traction rope is recovered. These impurities will greatly reduce the performance and service life of the traction rope in the long run. Utility Model Content

[0005] In view of the above technical problems, the utility model is equipped with a cleaning mechanism and a water removal mechanism during use, which can clean the impurities on the surface of the cable and blow away the moisture when the cable is recovered, so as to ensure that the cable recovered into the rack is dry and clean. At the same time, the use of cables instead of wireless transmission makes the data transmission between the sampling barrel and the control center more stable and timely, thereby achieving the purpose of precise control of the solenoid valve on the sampling barrel.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A groundwater sampling device for environmental monitoring, comprising a frame, a reel is provided in the frame, a cable is provided on the reel, one end of the cable is connected to a sampling bucket, a cable arrangement mechanism is provided on the frame, a water removal mechanism is provided on the cable arrangement mechanism, a cleaning mechanism is provided at the front end of the water removal mechanism, the cleaning mechanism is provided with a cleaning cabin, and a cleaning nozzle is provided on the top of the cleaning cabin;

[0008] The sampling barrel is provided with a solenoid valve, and the solenoid valve is connected with a cable.

[0009] By adopting the above technical scheme, it is possible to ensure that the onshore control center is connected to the sampling barrel by cable, realize signal transmission, and improve the stability and speed of signal transmission. At the same time, when the sampling barrel is out of control, the sampling barrel can be salvaged by cable, and the impurities on the surface of the cable can be cleaned by the cleaning nozzle when the cable is recovered.

[0010] A groundwater sampling device for environmental monitoring, wherein the dewatering mechanism is provided with a support plate, the top of the support plate is provided with a dewatering nozzle, and the dewatering nozzle is used for dewatering and removing impurities from the surface of a cable.

[0011] By adopting the above technical solution, it can be ensured that the water removal nozzle is connected to the external compressed air pipeline to sweep the water out of the cleaned cable, ensuring that the cable entering the rack is clean and dry, which can extend the service life and performance of the cable.

[0012] A groundwater sampling device for environmental monitoring, wherein the wire arrangement mechanism is provided with a lead screw, one end of the lead screw is provided with a rotating motor, the lead screw is provided with a slider, and the slider is provided with a fiber guide hole.

[0013] By adopting the above technical solution, it can be ensured that the screw can be controlled by the rotating motor to rotate forward and reverse, so that the slider on the screw can swing left and right on the screw. The cable can enter the frame through the fiber guide hole, and the cable can be equidistantly wound on the reel through the swing of the slider.

[0014] A groundwater sampling device for environmental monitoring, wherein a first gear is provided at one end of the reel, a second gear is meshed on the first gear, and a driving motor is connected to the second gear.

[0015] By adopting the above technical solution, it can be ensured that the driving motor drives the second gear and the second gear meshes with the first gear for transmission, and the first gear drives the reel in the frame to recycle the cable.

[0016] A groundwater sampling device for environmental monitoring, wherein a cover plate is provided on the top of the frame and a viewing window is provided on the cover plate.

[0017] By adopting the above technical solution, it can be ensured that the working status of the cable on the reel can be clearly seen through the window on the frame.

[0018] A groundwater sampling device for environmental monitoring, wherein a conductive slip ring is arranged on a side of the frame away from a first gear, and a first optical terminal is connected to the conductive slip ring.

[0019] By adopting the above technical solution, it can be ensured that the conductive slip ring is connected to the cable on the reel, thereby avoiding entanglement and distortion when the cable on the reel is directly connected to the optical terminal.

[0020] A groundwater sampling device for environmental monitoring, wherein an annular scraper is arranged on the wall of the cleaning cabin.

[0021] By adopting the above technical solution, it can be ensured that most of the moisture on the surface of the cable after cleaning can be scraped off by the annular scraper, ensuring that the cleaning is more thorough when the water removal mechanism is used.

[0022] In summary, the beneficial technical effects of the utility model are:

[0023] (1) The cleaning nozzle and the water removal nozzle can be used to clean the impurities and purge the water from the recovered cables, thus extending the service life of the cables. At the same time, the cable retracting device replaces the traditional wireless transmission method. After the sampling barrel dives to the predetermined depth, the solenoid valve can be accurately controlled by the cable to open for sampling and close after sampling. Since the sampling barrel is light in weight, the cable can also replace the traction rope to drag the sampling barrel.

[0024] (2) Using a drive motor instead of manual labor to recover the cable makes it more labor-saving and convenient, and improves the recovery speed of the sampling barrel.

[0025] (3) The cable arrangement mechanism can be used to evenly wind the cable onto the reel when the cable is recovered.

[0026] (4) The control center is connected to the sampling barrel by cables, which increases the diving depth of the sampling barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the overall structure of the utility model from another angle;

[0029] Figure 3 It is a schematic diagram of the utility model with the cover plate hidden;

[0030] Figure 4 It is an enlarged schematic diagram of the A part of the utility model;

[0031] Figure 5 It is an enlarged schematic diagram of part B of the utility model;

[0032] Figure 6 It is a schematic diagram of the use state of the utility model.

[0033] Figure numerals: 1. frame; 2. cable arrangement mechanism; 3. cleaning mechanism; 4. water removal mechanism; 5. cover plate; 6. window; 7. fiber inlet hole; 8. first gear; 9. second gear; 10. drive motor; 11. rotating motor; 12. conductive slip ring; 13. first optical terminal; 14. second optical terminal; 15. support; 16. double-headed cylinder; 17. reel; 18. water removal nozzle; 19. cleaning cabin; 20. cleaning nozzle; 21. leakage hole; 22. annular scraper; 23. fiber guide hole; 24. cable; 25. sampling barrel; 26. watertight plug; 27. control center; 28. screw; 29. ​​slider; 30. solenoid valve. DETAILED DESCRIPTION

[0034] The present invention will be described clearly and completely below in conjunction with the embodiments.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In the description of the embodiments, unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or it can be connected through an intermediate medium, or it can be a communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] See attached Figure 1 ,Attached Figure 2 ,Attached Figure 3, a groundwater sampling device for environmental monitoring is shown, comprising a frame 1, a cover plate 5 is provided on the top of the frame 1, a visual window 6 is provided on the cover plate 5, the window 6 is used to observe the winding of the cable 24 inside in real time, a reel 17 is rotatably provided in the frame 1, the reel 17 is used to wind the cable 24, one end of the cable 24 is connected to a sampling bucket 25, the sampling bucket 25 is provided with an electromagnetic valve 30 for controlling the connection and disconnection between groundwater and the sampling bucket 25, the cable 24 is used to replace the wireless transmission signal to accurately control the underwater electromagnetic valve 30, a main shaft is provided at the center of the reel 17, one end of the main shaft is provided with a first gear 8, the first gear 8 is meshed with a second gear 9, the second gear 9 is connected to a driving motor 10, the driving motor 10 is used to drive the first gear 8 and the second gear 9 to drive the reel 17 to wind the cable 24, a double-headed cylinder (16) is provided on the bottom plate, a support (15) is provided on the top rod of the double-headed cylinder (16), and the support 15 is used to support and fix the driving motor 10;

[0038] A conductive slip ring 12 is provided on one side of the frame 1 away from the first gear 8, the inner shaft of the conductive slip ring 12 is connected to the cable 24 on the drum 17 by wires, and the outer wall of the conductive slip ring 12 is connected to the frame 1, and a first optical terminal 13 is provided on the same side of the frame 1 as the conductive slip ring 12, and the first optical terminal 13 is connected to the conductive slip ring 12 by wires;

[0039] See attached Figure 1 , attached Figure 4 , attached Figure 5 A rectangular fiber inlet hole 7 is provided on the other side wall of the frame 1, two support blocks are provided in parallel at both ends of the fiber inlet hole 7, a lead screw 28 is provided between the two support blocks, a rotating motor 11 is provided at one end of the lead screw 28, the rotating motor 11 is used to control the forward and reverse rotation of the lead screw 28, a slider 29 is provided on the lead screw 28, a fiber guide hole 23 is provided on the slider 29, an extension plate extending forward is provided below the fiber inlet hole 7, a support plate is provided on the extension plate, a dewatering nozzle 18 is provided on the top of the support plate, and the dewatering nozzle 18 is used to The cleaned cable 24 is purged of moisture, a cleaning cabin 19 is provided in front of the dewatering nozzle 18, a cleaning nozzle 20 is provided on the top of the cleaning cabin 19, and the cleaning nozzle 20 is used to clean impurities on the surface of the cable 24 during recycling, and an annular scraper 22 is provided on one side wall of the cleaning cabin 19 close to the dewatering nozzle 18, and the annular scraper 22 is used to scrape moisture from the surface of the cable 24, and a leakage hole 21 is provided at the bottom of the cleaning cabin 19, and the leakage hole 21 is used to promptly discharge the waste water generated during cleaning.

[0040] See attached Figure 1 , attached Figure 2 , attached Figure 6, as shown in the figure, when in use, firstly, a watertight plug 26 is arranged on the sampling barrel 25, and the watertight plug 26 can prevent water from entering the sampling barrel 25 along with the cable 24, and at the same time, the second optical terminal 14 is arranged on the sampling barrel 25, and then the first optical terminal 13 is connected to the control center 27, and the first optical terminal 13 is connected to the cable 24 on the conductive slip ring 12 and the reel 17, and then the other end of the cable 24 on the reel 17 is connected to the second optical terminal 14 on the sampling barrel 25, so that the connection between the control center 27, the first optical terminal 13, the cable 24, the sampling barrel 25, the solenoid valve 30, and the second optical terminal 14 can be realized, and the data collected by the second optical terminal 14, the diving data of the underwater sampling barrel 25, and the image and video data can be stably and timely transmitted to the control center 27 on the shore through the cable 24, and then the cleaning nozzle 20 and the water removal nozzle 18 are respectively connected to the tap water pipe and the high-pressure air pipe on the shore;

[0041] When the sampling barrel 25 dives, the double-headed cylinder 16 is used to separate the driving motor 10 and the second gear 9 from the first gear 8, so that the reel 17 is in a free state, which can greatly reduce the backward pulling force of the cable 24 on the sampling barrel 25 when the sampling barrel 25 dives, that is, the diving resistance. When the sampling barrel 25 stops diving, the control center 27 starts the double-headed cylinder 16 to mesh the first gear 8 with the second gear 9 to brake the reel 17;

[0042] When the control center on the shore observes that the sampling barrel 25 has reached the diving depth, the solenoid valve 30 is opened through the cable to perform sampling at that depth. After the sampling is completed, the drive motor 10 is started to drive the reel 17 to reel in the cable 24 through the first gear 8 and the second gear 9. When the cable 24 is recovered, when the cable 24 passes through the cleaning nozzle 20, the valve of the cleaning nozzle 20 is opened to clean the impurities on the cable 24. After cleaning, when the cable 24 passes under the dewatering nozzle 18, high-pressure air is used to blow away the moisture on the surface of the cable 24. Then the cable 24 is wound around the reel 17 through the fiber guide hole 23 on the slider. When the cable 24 is wound, the rotation mode of the screw 28 is periodically changed by rotating the motor 11, so that the cable 24 can be equidistantly wound around the reel 17 as the slider 29 swings left and right.

[0043] The conductive slip ring 12 is used to prevent the cable 24 on the reel 17 from being twisted when the reel 17 rotates after the cable 24 is directly connected to the first optical terminal 13. The conductive slip ring 12 is used to prevent the cable 24 between the reel 17 and the first optical terminal 13 from being twisted. The structure and function of the conductive slip ring 12 are utilized, that is, one part can rotate with the reel 17 and the other part remains stationary. In this way, the cable 24 on the reel 17 can rotate with the reel 17 and the cable 24 connected to the first optical terminal 13 by the conductive slip ring 12 can be ensured not to rotate with the reel 17 and the purpose of signal transmission can be achieved.

[0044] By providing the rotating motor 11 , the lead screw 28 and the slider 29 , the working purpose of a cable arranging device can be achieved, and local accumulation of the cable 24 on the reel 17 can be avoided.

[0045] It should be noted that the sampling barrel in the present invention is the sampling barrel already disclosed in the comparative document in the background technology.

[0046] It should be noted that since the sampling bucket 25 is relatively light in weight, the cable 24 can completely replace the traction rope to play the traction role in the utility model. At the same time, the use of the cable 24 avoids the problem of unstable wireless signal transmission, thereby increasing the sampling depth. At the same time, in the utility model, the cable 24 adopts a tensile and wear-resistant soft cable.

[0047] The above description is only a preferred specific implementation method of the present utility model, and does not limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A groundwater sampling device for environmental monitoring, characterized in that: The invention comprises a frame (1), wherein a reel (17) is provided in the frame (1), a cable (24) is provided on the reel (17), one end of the cable (24) is connected to a sampling bucket (25), a cable arrangement mechanism (2) is provided on the frame (1), a water removal mechanism (4) is provided on the cable arrangement mechanism (2), a cleaning mechanism (3) is provided at the front end of the water removal mechanism (4), the cleaning mechanism (3) is provided with a cleaning chamber (19), and a cleaning nozzle (20) is provided at the top of the cleaning chamber (19); The sampling barrel (25) is provided with a solenoid valve (30), and the solenoid valve (30) is connected to the cable (24).

2. A groundwater sampling device for environmental monitoring according to claim 1, characterized in that: The dewatering mechanism (4) is provided with a support plate, and a dewatering nozzle (18) is provided on the top of the support plate. The dewatering nozzle (18) is used to remove water and impurities from the surface of the cable (24).

3. The groundwater sampling device for environmental monitoring according to claim 1, characterized in that: The cable arrangement mechanism (2) is provided with a lead screw (28), one end of which is provided with a rotating motor (11), a slider (29) is provided on the lead screw, and the slider (29) is provided with a fiber guide hole (23).

4. The groundwater sampling device for environmental monitoring according to claim 1, characterized in that: A first gear (8) is provided at one end of the reel (17), a second gear (9) is meshed with the first gear (8), and a driving motor (10) is connected to the second gear (9).

5. The groundwater sampling device for environmental monitoring according to claim 1, characterized in that: A bottom plate is provided at one side of the bottom of the frame (1) close to the second gear (9), a double-headed cylinder (16) is provided on the bottom plate, and a support (15) is provided on the top rod of the double-headed cylinder (16).

6. The groundwater sampling device for environmental monitoring according to claim 1, characterized in that: A cover plate (5) is provided on the top of the frame (1), and a viewing window (6) is provided on the cover plate (5).

7. The groundwater sampling device for environmental monitoring according to claim 1, characterized in that: A conductive slip ring (12) is provided on a side of the frame (1) away from the first gear (8), and a first optical terminal (13) is connected to the conductive slip ring (12).

8. The groundwater sampling device for environmental monitoring according to claim 1, characterized in that: An annular scraper (22) is provided on the wall of the cleaning cabin (19).

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