Underground water sampling equipment for environmental monitoring and sampling method thereof

Abstract

The invention discloses underground water sampling equipment for environmental monitoring and a sampling method thereof, and belongs to the technical field of underground water sampling equipment.The underground water sampling equipment for environmental monitoring comprises a mounting rack, a rope and a sampling bucket, the rope and the sampling bucket are slidably arranged on the mounting rack, and fixing plates are fixedly connected to the inner walls of the two sides of the mounting rack; according to the underground water sampling equipment for environmental monitoring, a winding roller is controlled by a double-shaft motor to wind a rope, and underground water, algae and other impurities on the rope can be automatically removed through a sponge sleeve in the ascending process of the rope, so that the service life of the rope is prolonged, and the working efficiency of underground water gas sampling is improved; after the sampling barrel is lifted to the initial position, the sampling barrel is lifted again, the sampling barrel abuts against the moving plate by a certain distance upwards, the two extrusion plates get close to each other through the connecting rod to extrude the sponge sleeve, water on the sponge sleeve is automatically extruded to fall off, and water absorption of the sponge sleeve to the rope next time is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of groundwater sampling equipment, and in particular to groundwater sampling equipment for environmental monitoring and a sampling method thereof. Background Art

[0002] Environmental monitoring refers to determining the environmental quality (or degree of pollution) and its changing trend by measuring the representative values ​​of factors that affect environmental quality. It uses physical, chemical, biological and other technical means to monitor various substances in the environment. By monitoring various chemical substances (such as heavy metals, organic matter, nutrients, etc.) and physical indicators (such as water temperature, color, turbidity, etc.) in water, it is possible to determine whether groundwater is polluted and provide a basis for the rational use of water resources. For example, in groundwater monitoring at drinking water sources, heavy metals (such as lead, mercury, cadmium) and microbial indicators are focused on to ensure drinking water safety.

[0003] After searching, the Chinese patent publication number CN219777192U discloses a groundwater sampling device for environmental monitoring, which relates to the technical field of groundwater sampling equipment, including a load-bearing plate, and the line rope is released by rotating the line roller, so that the water sampling barrel moves downward, and the gravity ball has a downward force on the water sampling barrel, so that the water sampling barrel sinks underwater, increasing the convenience of water sampling by the water sampling barrel; a fixing ring is fixedly connected to the outer wall of the water sampling barrel, and one end of the water depth rope is symmetrically connected to the fixing ring, and a float is fixedly connected to the other end of the water depth rope, and a water depth rope of corresponding length is prepared. During the downward movement of the water sampling barrel, one end of the water depth rope is brought underwater, and the float float floats on the water surface. When the float tends to be pulled down, it proves that the water sampling barrel has dived to the corresponding depth. At this time, the switch valve on the water sampling barrel is controlled to be opened to allow water to enter, and the valve is controlled to be closed to complete water extraction. The above patent has the following deficiencies: currently, when monitoring groundwater, sampling is usually carried out in well water. However, there may be some impurities such as algae and grass in the well water. After sampling, the rope rises, and the algae and grass impurities and water on the rope cannot be cleaned during the winding process. Over time, the rope may rust, reducing the service life of the rope and affecting the sampling efficiency of groundwater. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that after groundwater sampling, some algae or grass and moisture are easily adhered to the surface of the rope, which affects the service life of the rope and reduces the groundwater sampling efficiency if not handled in time. A groundwater sampling device for environmental monitoring and a sampling method thereof are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A groundwater sampling device for environmental monitoring includes a mounting frame, a rope and a sampling bucket slidably arranged on the mounting frame, wherein fixed plates are fixedly connected to the inner walls on both sides of the mounting frame, and further includes: a slide groove opened in the fixed plate, an extrusion plate is slidably connected in the slide groove of the fixed plate, a sponge cover is provided on the rope, and connecting ropes are fixedly connected between the two sides of the sponge cover and the extrusion plate.

[0007] Preferably, vertical grooves are provided on both side walls of the mounting frame, guide rods are fixedly connected in the vertical grooves of the mounting frame, a slider is slidably connected to the guide rods, and a first spring is sleeved on the guide rods.

[0008] Preferably, two ends of the first spring respectively abut against the inner walls of the vertical slot of the slider and the mounting frame, a moving plate is fixedly connected to the slider, and a connecting rod is hinged between the moving plate and the extrusion plate.

[0009] Preferably, two bearing plates are fixedly connected to the top of the mounting frame, a winding roller is rotatably connected between the two bearing plates, one end of the rope is fixedly connected to the sampling barrel, and the other end of the rope is wound around the winding roller.

[0010] Preferably, a dual-axis motor is fixedly mounted on the top of the mounting frame, the output end of the dual-axis motor is fixedly connected to the winding roller, an automatic control valve is fixedly mounted in the sampling barrel, and a gravity ball is fixedly mounted on the bottom of the sampling barrel.

[0011] Preferably, one end of the winding roller extends to the outside of the bearing plate, the end of the winding roller away from the dual-axis motor is fixedly connected to the first connecting rod, the end of the dual-axis motor away from the winding roller is fixedly connected to the second connecting rod, and a wiping assembly is provided between the first connecting rod and the second connecting rod and the mounting frame.

[0012] Preferably, the wiping assembly includes gears fixedly connected to the first connecting rod and the second connecting rod respectively, guide blocks are fixedly connected to the outer walls on both sides of the mounting frame, and racks meshing with the gears are slidably connected to the two guide blocks.

[0013] Preferably, both side surfaces of the mounting frame are rotatably connected with rotating rods, and both rotating rods are provided with spiral grooves. The bottom of the rack is fixedly connected with a connecting plate, and the connecting plate is fixedly connected with a sliding rod corresponding to the spiral groove.

[0014] Preferably, push rods are slidably connected to both sides of the mounting frame, one end of the push rod is fixedly connected to a water-absorbing sponge ring, the rotating rod is fixedly connected to a cam, the push rod is sleeved with a second spring, and both ends of the second spring are fixedly connected to the mounting frame and the push rod respectively.

[0015] The present invention also provides a groundwater sampling method for environmental monitoring, which is operated by the following steps:

[0016] S1. Move the mounting frame to the top of the wellhead, start the dual-axis motor to drive the winding roller to expand and contract the rope, drive the sampling bucket downward into the well, and make the sampling bucket enter the water under the action of the gravity ball. Then the staff controls the automatic control valve in the sampling bucket to open, and the water automatically flows into the sampling bucket to collect the water. Then the automatic control valve is closed to complete the sampling of groundwater;

[0017] S2. Start the dual-axis motor to drive the reel to reverse and reel in the rope, and then pull the sampling bucket upward to a suitable position. The rope that has been soaked in water is wiped clean with a sponge sleeve, thereby completing the sampling of groundwater.

[0018] Compared with the prior art, the present invention provides a groundwater sampling device for environmental monitoring, which has the following beneficial effects:

[0019] 1. The groundwater sampling equipment for environmental monitoring controls the winding roller to wind up the rope through a dual-axis motor. During the rising process of the rope, the groundwater, algae and other impurities on the rope can be automatically removed through the sponge cover, which helps to extend the service life of the rope and improve the efficiency of groundwater gas sampling. After the sampling bucket rises to the initial position, the sampling bucket is raised again. The sampling bucket supports the moving plate and moves upward for a distance. The two squeezing plates are brought close to each other through the connecting rod to squeeze the sponge cover, so that the water on the sponge cover is automatically squeezed and falls off, which is conducive to the sponge cover absorbing water from the rope next time.

[0020] 2. The groundwater sampling equipment for environmental monitoring controls the winding roller to wind up the rope through a dual-axis motor, so that in the process of resetting the sampling barrel upward, the two gears on the mounting frame are respectively meshed with the two racks through the first connecting rod and the second connecting rod, and the rack drives the sliding rod to contact the spiral groove on the rotating rod through the connecting plate, and slides along the spiral groove, so that the rotating rod and the cam continue to rotate, and the protrusion of the cam repeatedly contacts the push rod, and the second spring repeatedly resets the push rod, so that the two water-absorbing sponge rings repeatedly approach and move away from each other, and when the sampling barrel rises to the position of the water-absorbing sponge ring, the water-absorbing sponge ring wraps the outside of the sampling barrel, automatically wipes and removes the moisture on the sampling barrel, so that the staff can remove it later without manually wiping the moisture again, which greatly improves the sampling efficiency of groundwater, and the sampling barrel will not slip during the process of removing the sampling barrel, and the random shaking of the sampling barrel during the rising process can also be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a groundwater sampling device for environmental monitoring proposed by the present invention;

[0022] Figure 2The present invention proposes Figure 1 The structural diagram of part A in the figure;

[0023] Figure 3 A schematic diagram of the side structure of a groundwater sampling device for environmental monitoring proposed by the present invention;

[0024] Figure 4 The present invention proposes Figure 3 The structural diagram of part B;

[0025] Figure 5 This is a front view structural schematic diagram of a groundwater sampling device for environmental monitoring proposed by the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of a vertical slot in a groundwater sampling device for environmental monitoring proposed by the present invention;

[0027] Figure 7 The present invention proposes Figure 6 Schematic diagram of the structure of part C;

[0028] Figure 8 This is a schematic diagram of the structure of a guide block and a rotating rod in a groundwater sampling device for environmental monitoring proposed by the present invention;

[0029] Fig. 9 The present invention proposes Figure 8 Schematic diagram of the structure of part D.

[0030] In the figure: 1. mounting frame; 2. rope; 3. sampling barrel; 4. fixing plate; 5. extrusion plate; 6. sponge cover; 7. connecting rope; 8. guide rod; 9. vertical groove; 10. slider; 11. first spring; 12. moving plate; 13. connecting rod; 14. bearing plate; 15. winding roller; 16. dual-axis motor; 17. gravity ball; 18. first connecting rod; 19. second connecting rod; 20. wiping assembly; 21. gear; 22. guide block; 23. rack; 24. rotating rod; 25. spiral slide; 26. connecting plate; 27. sliding rod; 28. push rod; 29. ​​water-absorbing sponge ring; 30. cam; 31. second spring. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] Example 1: Reference Figure 1-Figure 9 A groundwater sampling device for environmental monitoring includes a mounting frame 1, a rope 2 and a sampling bucket 3 slidably arranged on the mounting frame 1, fixed plates 4 are fixedly connected to the inner walls on both sides of the mounting frame 1, and also includes a slide groove opened in the fixed plate 4, and an extrusion plate 5 is slidably connected in the slide groove of the fixed plate 4. A sponge cover 6 is provided on the rope 2, and connecting ropes 7 are fixedly connected between the two sides of the sponge cover 6 and the extrusion plate 5.

[0034] In the present invention, after the sampling bucket 3 completes sampling of groundwater, during the process of the rope 2 being rolled up and raised, water, algae, etc. adhered to the rope 2 are adsorbed and wiped by the sponge cover 6, which helps to extend the service life of the rope 2; the connecting rope 7 on the extrusion plate 5 can support the sponge cover 6.

[0035] Example 2: Reference Figure 1-Figure 8 , which is basically the same as the first embodiment, and further, vertical grooves 9 are opened on the two side walls of the mounting frame 1, a guide rod 8 is fixedly connected in the vertical groove 9 of the mounting frame 1, a slider 10 is slidably connected to the guide rod 8, and a first spring 11 is sleeved on the guide rod 8.

[0036] The two ends of the first spring 11 respectively abut against the slider 10 and the inner wall of the vertical slot 9 of the mounting frame 1 . The slider 10 is fixedly connected with a moving plate 12 . A connecting rod 13 is hinged between the moving plate 12 and the extrusion plate 5 .

[0037] In the present invention, when the sampling barrel 3 rises and resets after sampling the groundwater, after the sampling barrel 3 rises to the position where the sampling barrel 3 can be removed, the sampling barrel 3 is moved upward for a distance again. At this time, the sampling barrel 3 pushes the two movable plates 12 on the top upward, and the movable plates 12 slide on the guide rod 8 through the slider 10. Under the action of the connecting rod 13, the two squeezing plates 5 are brought close to each other, thereby squeezing the sponge cover 6, so that the sponge cover 6 after absorbing the groundwater is deformed, and the groundwater is squeezed out to facilitate the next absorption of the groundwater on the rope 2. Compared with the traditional manual wiping of water on the rope 2, it has the advantage of automated processing and does not require manual operation; through the first spring 11, when the sampling barrel 3 is reset downward, the first spring 11 can make the movable plate 12 reset downward, and drive the squeezing plates 5 to reset away from each other through the connecting rod 13.

[0038] Two bearing plates 14 are fixedly connected to the top of the mounting frame 1 , a winding roller 15 is rotatably connected between the two bearing plates 14 , one end of the rope 2 is fixedly connected to the sampling barrel 3 , and the other end of the rope 2 is wound around the winding roller 15 .

[0039] A double-axis motor 16 is fixedly mounted on the top of the mounting frame 1 , and the output end of the double-axis motor 16 is fixedly connected to the winding roller 15 . An automatic control valve is fixedly mounted in the sampling barrel 3 , and a gravity ball 17 is fixedly mounted on the bottom of the sampling barrel 3 .

[0040] In the present invention, by starting the dual-axis motor 16, the winding roller 15 can be driven to rotate forward and reverse, and the winding and scaling of the rope 2 can be controlled, so that the up and down height of the sampling bucket 3 can be controlled; when sampling groundwater, the dual-axis motor 16 controls the sampling bucket 3 to move downward. After the sampling bucket 3 contacts the water surface, the sampling bucket 3 can automatically enter the groundwater under the action of the gravity ball 17. At this time, the staff opens the valve of the sampling bucket 3 through the automatic control valve, and the groundwater enters the sampling bucket 3. When the sampling bucket 3 completes the sampling, the valve is automatically closed through the automatic control valve, and the dual-axis motor 16 is started to drive the winding roller 15 to rotate in the opposite direction, and the winding rope 2 is wound to drive the sampling bucket 3 to rise upward.

[0041] Example 3: Reference Figure 1-Figure 9 , which is basically the same as the first embodiment, and further, one end of the winding roller 15 extends to the outside of the bearing plate 14, and the end of the winding roller 15 away from the dual-axis motor 16 is fixedly connected to the first connecting rod 18, and the end of the dual-axis motor 16 away from the winding roller 15 is fixedly connected to the second connecting rod 19, and a wiping assembly 20 is arranged between the first connecting rod 18 and the second connecting rod 19 and the mounting frame 1.

[0042] In the present invention, when the dual-axis motor 16 is started, it drives the winding roller 15 to rotate and also drives the first connecting rod 18 and the second connecting rod 19 to rotate simultaneously.

[0043] The wiping assembly 20 includes a gear 21 fixedly connected to the first connecting rod 18 and the second connecting rod 19 respectively. Guide blocks 22 are fixedly connected to the outer walls of both sides of the mounting frame 1. Racks 23 meshing with the gear 21 are slidably connected to the two guide blocks 22.

[0044] In the present invention, the guide block 22 can guide the sliding of the rack 23. When the first connecting rod 18 and the second connecting rod 19 rotate, the gears 21 on both sides of the mounting frame 1 rotate simultaneously during the process of controlling the upward rise of the sampling barrel 3, and mesh with the rack 23, so that the rack 23 moves upward.

[0045] The two side surfaces of the mounting frame 1 are rotatably connected with rotating rods 24 , and the two rotating rods 24 are provided with spiral grooves 25 . The bottom of the rack 23 is fixedly connected with a connecting plate 26 , and the connecting plate 26 is fixedly connected with a sliding rod 27 corresponding to the spiral grooves 25 .

[0046] Push rods 28 are slidably connected to both sides of the mounting frame 1, one end of the push rods 28 is fixedly connected to a water-absorbing sponge ring 29, a cam 30 is fixedly connected to the rotating rod 24, a second spring 31 is sleeved on the push rod 28, and both ends of the second spring 31 are fixedly connected to the mounting frame 1 and the push rod 28 respectively.

[0047] In the present invention, when the rack 23 moves upward, the connecting plate 26 at the bottom drives the slide bar 27 to move upward, and the slide bar 27 slides along the spiral groove 25 of the rotating rod 24, so that the rotating rod 24 continues to rotate. The rotating rod 24 drives the cam 30 to rotate while continuously rotating. When the protruding portion of the cam 30 conflicts with the push rod 28, the push rod 28 slides through the guide of the mounting frame 1 and compresses the second spring 31 at the same time, so that the two water-absorbing sponge rings 29 in the mounting frame 1 are close to each other. When the protruding portion of the cam 30 does not conflict with the push rod 28, the second spring 31 drives the push rod 28 to drive the water-absorbing sponge ring 29 automatically resets, and reciprocates in this way, so that in the process of the sampling bucket 3 rising upward, the two water-absorbing sponge rings 29 make reciprocating motions, repeatedly approaching and moving away. When the sampling bucket 3 rises to the vicinity of the water-absorbing sponge rings 29, the two water-absorbing sponge rings 29 approach each other, and wrap the two sides of the sampling bucket 3, and reciprocate in this way. Therefore, after the sampling bucket 3 is completed, the groundwater on the surface can be wiped off, which is convenient for the staff to take it down later, and there is no need to manually wipe the water again, which greatly improves the sampling efficiency of groundwater and can also reduce the random shaking of the sampling bucket 3 during the rising process.

[0048] Embodiment 4: A groundwater sampling method for environmental monitoring, which is operated by the following steps:

[0049] S1, move the mounting frame 1 to the top of the wellhead, start the dual-axis motor 16 to drive the winding roller 15 to retract the rope 2, drive the sampling bucket 3 downward into the well, and make the sampling bucket 3 enter the water under the action of the gravity ball 17, then the staff controls the automatic control valve in the sampling bucket 3 to open, the water automatically enters the sampling bucket 3, collects the water, and then closes the automatic control valve to complete the sampling of groundwater;

[0050] S2. Start the dual-axis motor 16 to drive the reel 15 to reverse, reel the rope 2, and then pull the sampling bucket 3 upward to a suitable position. The rope 2 that has been stuck with water is wiped and cleaned with the sponge sleeve 6, thereby completing the sampling of groundwater.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A groundwater sampling device for environmental monitoring, comprising: A mounting frame (1), a rope (2) and a sampling bucket (3) slidably arranged on the mounting frame (1), characterized in that a fixing plate (4) is fixedly connected to the inner walls on both sides of the mounting frame (1), and further comprising: A sliding groove is provided on the fixing plate (4), a pressing plate (5) is slidably connected in the sliding groove of the fixing plate (4), a sponge cover (6) is sleeved on the rope (2), and connecting ropes (7) are fixedly connected between the two sides of the sponge cover (6) and the pressing plate (5).

2. A groundwater sampling device for environmental monitoring according to claim 1, characterized in that: Vertical grooves (9) (9) are provided on both side walls of the mounting frame (1), a guide rod (8) is fixedly connected in the vertical groove (9) of the mounting frame (1), a slider (10) is slidably connected to the guide rod (8), and a first spring (11) is sleeved on the guide rod (8).

3. A groundwater sampling device for environmental monitoring according to claim 2, characterized in that: The two ends of the first spring (11) respectively abut against the inner wall of the vertical slot (9) of the slider (10) and the mounting frame (1); a moving plate (12) is fixedly connected to the slider (10); and a connecting rod (13) is hinged between the moving plate (12) and the extrusion plate (5).

4. A groundwater sampling device for environmental monitoring according to claim 1, characterized in that: Two bearing plates (14) are fixedly connected to the top of the mounting frame (1), a winding roller (15) is rotatably connected between the two bearing plates (14), one end of the rope (2) is fixedly connected to the sampling barrel (3), and the other end of the rope (2) is wound around the winding roller (15).

5. A groundwater sampling device for environmental monitoring according to claim 4, characterized in that: A double-axis motor (16) is fixedly mounted on the top of the mounting frame (1), the output end of the double-axis motor (16) is fixedly connected to the winding roller (15), an automatic control valve is fixedly mounted in the sampling barrel (3), and a gravity ball (17) is fixedly mounted on the bottom of the sampling barrel (3).

6. A groundwater sampling device for environmental monitoring according to claim 4, characterized in that: One end of the winding roller (15) extends to the outside of the bearing plate (14); one end of the winding roller (15) away from the dual-axis motor (16) is fixedly connected to a first connecting rod (18); one end of the dual-axis motor (16) away from the winding roller (15) is fixedly connected to a second connecting rod (19); and a wiping assembly (20) is provided between the first connecting rod (18), the second connecting rod (19) and the mounting frame (1).

7. A groundwater sampling device for environmental monitoring according to claim 6, characterized in that: The wiping assembly (20) comprises a gear (21) fixedly connected to a first connecting rod (18) and a second connecting rod (19), respectively; guide blocks (22) are fixedly connected to the outer walls on both sides of the mounting frame (1); and racks (23) meshing with the gear (21) are slidably connected to the two guide blocks (22).

8. A groundwater sampling device for environmental monitoring according to claim 7, characterized in that: The two side surfaces of the mounting frame (1) are rotatably connected to rotating rods (24), and the two rotating rods (24) are each provided with a spiral slide groove (25). The bottom of the rack (23) is fixedly connected to a connecting plate (26), and the connecting plate (26) is fixedly connected to a slide rod (27) corresponding to the spiral slide groove (25).

9. A groundwater sampling device for environmental monitoring according to claim 8, characterized in that: Push rods (28) are slidably connected to both sides of the mounting frame (1), one end of the push rod (28) is fixedly connected to a water-absorbing sponge ring (29), the rotating rod (24) is fixedly connected to a cam (30), the push rod (28) is sleeved with a second spring (31), and the two ends of the second spring (31) are respectively fixedly connected to the mounting frame (1) and the push rod (28).

10. A groundwater sampling method for environmental monitoring, comprising a groundwater sampling device for environmental monitoring according to any one of claims 1 to 9, characterized in that: Use the following steps: S1. Move the mounting frame (1) to the top of the wellhead, start the double-axis motor (16) to drive the winding roller (15) to expand and contract the rope (2), and drive the sampling bucket (3) downward into the well. Under the action of the gravity ball (17), the sampling bucket (3) enters the water. Then, the staff controls the automatic control valve in the sampling bucket (3) to open, and the water automatically flows into the sampling bucket (3) to collect the water. Then, the automatic control valve is closed to complete the sampling of groundwater. S2. The double-axis motor (16) is started to drive the reel (15) to reverse, and the rope (2) is reeled in, thereby pulling the sampling bucket (3) upward to a suitable position, and the rope (2) that has been soaked with water is wiped and cleaned with a sponge sleeve (6), thereby completing the sampling of groundwater.

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