A water sampling device for environmental monitoring

Abstract

The present invention relates to the technical field of environmental monitoring, and specifically discloses a water sample sampling device for environmental monitoring, comprising: a frame; and also comprising: a winding mechanism, which is arranged on the frame and is used for winding and releasing for use. The present invention has at least the following beneficial effects: by arranging the winding mechanism, the spacing mechanism and the sampling mechanism, the sampling mechanism can be placed into the water body according to the needs of use when performing water sample sampling work, and when the sampling mechanism is placed in the water, the spacing mechanism can be used to proportionally set the depth of the sampling mechanism entering the water body, and then after the sampling mechanism is moved to the bottom of the water, the spacing mechanism can be used to adaptively adjust water samples of equal distances and different depths according to the sampling mechanism sinking to the bottom of the water at different depths, thereby reducing the workload of the staff and shortening the working time, so that after the sampling mechanism is placed into the water body once, water samples of different water depths can be sampled to complete the sampling work.

Description

Technical Field

[0001] The invention relates to the technical field of environmental monitoring, in particular to a water sampling device for environmental monitoring. Background Art

[0002] Water sampling equipment for environmental monitoring is mainly used to collect representative water samples from natural water bodies such as rivers, lakes, oceans, etc. or industrial emission sources for water quality analysis. The design and working principles of these devices vary according to different application scenarios and needs, but can be roughly divided into two categories: manual sampling equipment and automatic sampling equipment. One is manual sampling equipment and the other is automatic sampling equipment.

[0003] However, both of the above two devices have obvious defects when in use. When using manual sampling equipment, the staff usually immerses the container directly into the water to a certain depth and then lifts it up to collect the required water samples. This method is suitable for shallow water areas and is used when the amount of samples collected is not large. When sampling water bodies at different depths, the staff is required to sample water bodies at different depths frequently and multiple times, which will increase the workload and working hours of the staff. When using automatic sampling equipment, although it can automatically collect water samples according to preset time intervals or flow ratios, and all samples will be collected in the same container, or distributed to multiple containers as needed, but when used in an environment where water is flowing, the water sampling equipment will be driven by the water flow when entering the water body, which will cause the water sampling equipment entering the water body to tilt, and then there will be errors in the actual distance from the water bottom, which will affect the water sampling results at different water depths. For this reason, we propose a water sampling device for environmental monitoring. Summary of the Invention

[0004] The purpose of the present invention is to provide a water sampling device for environmental monitoring to solve the problem raised in the above-mentioned background technology that when using manual sampling equipment, the staff usually directly immerses the container into the water to a certain depth and then lifts it up to collect the required water sample. This method is suitable for shallow water areas and is used when the amount of sample collected is not large. When sampling water bodies at different depths, the staff is required to frequently sample water bodies at different depths, which will increase the workload and working hours of the staff. When using automatic sampling equipment, although water samples can be automatically collected according to preset time intervals or flow ratios, and all samples will be collected in the same container, or distributed to multiple containers as needed, but when used in an environment where water bodies are flowing, the water sampling equipment will be driven by the water flow when entering the water body, which will cause the water sampling equipment entering the water body to tilt, and then cause an error in the actual distance from the water bottom, which will affect the water sampling results of different water depths.

[0005] To achieve the above object, the present invention provides the following technical solution: a water sampling device for environmental monitoring, comprising: a frame;

[0006] The machine also includes: a winding mechanism, which is arranged on the frame and is used for winding and releasing;

[0007] The sampling mechanism is arranged on the winding mechanism, and the sampling mechanism is retracted and released by the winding mechanism to collect water samples;

[0008] The distance mechanism is arranged on the frame, and the distance mechanism monitors the depth of the sampling mechanism sinking into the water, and cooperates with the winding mechanism to control the sampling mechanism to collect water samples at different depths at a fixed distance;

[0009] The bottom adjusting mechanism is arranged between the winding mechanism and the frame. The bottom adjusting mechanism is used to monitor the distance between the sampling mechanism and the water bottom, and then adjust the position of the sampling mechanism through the winding mechanism.

[0010] Among them, the winding mechanism includes two first limiting slides opened in the frame, the inner walls of the two first limiting slides are slidably connected to the limited movable seat, a first spring is fixedly connected between one side of the limited movable seat and one side of the inner wall of the first limiting slide, the top of the limited movable seat is fixedly connected to the first motor, the output end of the first motor is fixedly connected to the reel, and the reel is rotatably connected to the limited movable seat.

[0011] Among them, the sampling mechanism includes a sampling tube fixedly connected to one end of the cable outside the drum, and multiple sampling grooves are equidistantly opened inside the sampling tube. The inner walls of the multiple sampling grooves are all provided with pistons, and the bottom of the piston is fixedly connected to a connecting rod.

[0012] Among them, a limiting circular groove is opened inside the sampling tube, the limiting circular groove is located below the sampling groove, the bottom of the connecting rod is fixedly connected with a touch plate, and a fourth spring is fixedly connected between the top of the touch plate and the top of the inner wall of the limiting circular groove. The fourth spring is located on the outside of the connecting rod, and the bottom of the inner wall of the limiting circular groove is fixedly connected with a fourth touch switch.

[0013] Among them, the inside of the sampling tube is fixedly connected to a third motor, the third motor is located above the sampling slot, the output end of the third motor is fixedly connected to a second reciprocating screw, the outer side of the second reciprocating screw is threadedly connected to a threaded ring plate, the threaded ring plate is slidingly connected to the sampling tube, and four sealing blocks are fixedly connected to the bottom of the threaded ring plate.

[0014] Among them, the spacing mechanism includes a support frame fixedly connected to the top of the frame, one side of the support frame is fixedly connected to a fixed box, the internal rotation of the support frame is connected to a limiting wheel, one side of the support frame is rotatably connected to two gears, both gears are located in the fixed box, one side of the gear is fixedly connected to a winding wheel, a winding belt is arranged between the two winding wheels, and one side of one of the limiting wheels is fixedly connected to one side of the gear.

[0015] Among them, a third limiting slot is opened inside the fixed box, the inner wall of the third limiting slot is slidably connected to the limiting block, the top of the limiting block is fixedly connected to the third spring, the third spring is located in the third limiting slot, and one side of the limiting block is fixedly connected to an elliptical touch rod.

[0016] Among them, one side of the support frame is fixedly connected to the second motor, the output end of the second motor is fixedly connected to the first reciprocating screw, a fourth limit slide is opened inside the support frame, and the inner wall of the fourth limit slide is slidably connected to multiple limit movable blocks, the first reciprocating screw is threadedly connected to the uppermost limit movable block, and two first middle rotating plates are rotatably connected between the two limit movable blocks, and the two first middle rotating plates are rotatably connected. One side of the support frame is fixedly connected to a fixed block, and two second middle rotating plates are rotatably connected between the fixed block and the lowermost limit movable block, and the two second middle rotating plates are rotatably connected. One side of the fixed block is fixedly connected to a second touch switch, and one side of multiple limit movable blocks is fixedly connected to a third touch switch.

[0017] Among them, the bottom adjustment mechanism includes an insulating cover fixedly connected to the top of the frame, a second limiting slide groove is opened inside the insulating cover, the inner wall of the second limiting slide groove is slidably connected to the limiting magnet, a second spring is fixedly connected between one side of the limiting magnet and one side of the inner wall of the insulating cover, and one side of the inner wall of the insulating cover is fixedly connected to an electromagnet.

[0018] Among them, the bottom of the electromagnet is connected to the first conductive power block through a wire, one side of the first conductive power block is fixedly connected to one side of the inner wall of the insulating cover, one side of the limit movable seat is fixedly connected to the second conductive power block, one side of the limit magnet is fixedly connected to the elliptical contact head, and one side inside the insulating cover is fixedly connected to the first touch switch.

[0019] The present invention has at least the following beneficial effects:

[0020] By setting up a winding mechanism, a spacing mechanism and a sampling mechanism, the sampling mechanism can be placed in the water body according to the needs of use when performing water sampling work, and when the sampling mechanism is placed in the water, the spacing mechanism can be used to proportionally set the depth of the sampling mechanism entering the water body. After the sampling mechanism is moved to the bottom of the water, the spacing mechanism can be used to adaptively adjust the water samples of equal distances and different depths according to the sampling mechanism sinking to the bottom of the water at different depths. This reduces the workload of the staff and shortens the working time. In this way, different water depths can be achieved after the sampling mechanism is placed in the water body at a single time. The sampling work is completed by taking water samples; by setting a bottom adjusting mechanism, it can cooperate with the reeling mechanism to complete the real-time monitoring of the position of the sampling mechanism after being driven by the water flow, and then the monitoring information can be fed back to the reeling mechanism through the bottom adjusting mechanism, and the cable is retracted and released by the reeling mechanism according to the proportional parameter setting, so that the sampling mechanism can be successfully placed on the bottom of the water. If the cable is placed too much, the sampling mechanism can be gradually moved by the reeling mechanism, thereby preventing the sampling mechanism from tilting, which makes the actual distance between the sampling mechanism and the water bottom have an error, thereby ensuring water sampling work for different water depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the sampling mechanism of the present invention;

[0023] Figure 3 This is a schematic structural diagram of the third motor, the second reciprocating screw, the threaded ring plate and the blocking block of the present invention;

[0024] Figure 4 Schematic diagram of the structure of the piston, connecting rod, touch plate, fourth spring and fourth touch switch of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the support frame and the fixing box of the present invention;

[0026] Figure 6 Schematic diagram of the structure of the distance mechanism of the present invention;

[0027] Figure 7 Schematic diagram of the structure of the limit block and the elliptical contact rod of the present invention;

[0028] Figure 8 Schematic diagram of the structure of the second motor, the first reciprocating screw, the limit movable block, the first central rotating plate, the second central rotating plate, the fixed block, the second tact switch and the third tact switch of the present invention;

[0029] Figure 9 Schematic diagram of the internal structure of the frame and insulation cover of the present invention;

[0030] Figure 10 Schematic diagram of the structure of the bottom adjustment mechanism of the present invention;

[0031] Figure 11 This is a schematic diagram of the actual use of the present invention;

[0032] Figure 12 Schematic diagram of two winding wheels and a winding belt of the present invention.

[0033] In the figure: 1. Frame; 2. Winding mechanism; 21. First limiting chute; 22. Limiting movable seat; 23. First spring; 24. Reel; 25. First motor; 3. Bottom adjustment mechanism; 31. Insulating cover; 32. Second limiting chute; 33. Limiting magnet; 34. Oval contact; 35. First tact switch; 36. Second spring; 37. Electromagnet; 38. First conducting block; 39. Second conducting block; 4. Distance-fixing mechanism; 41. Support frame; 42. Third limiting chute; 43. Fourth limiting chute; 44. Limiting wheel; 45. Gear; 46. Winding wheel; 47. Winding belt; 48. Limiting block; 49. Third spring; 410. Elliptical touch rod; 411. Second motor; 412. First reciprocating screw; 413. Position-limiting movable block; 414. First central rotating plate; 415. Second central rotating plate; 416. Fixed block; 417. Second light touch switch; 418. Third light touch switch; 419. Fixed box; 5. Sampling mechanism; 51. Sampling tube; 52. Third motor; 53. Second reciprocating screw; 54. Threaded ring plate; 55. Sealing block; 56. Sampling slot; 57. Piston; 58. Connecting rod; 59. Position-limiting circular groove; 510. Touch plate; 511. Fourth spring; 512. Fourth light touch switch. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example 1

[0036] See also Figures 1 to 12 , the present invention provides a technical solution: a water sampling device for environmental monitoring, comprising: a frame 1;

[0037] The machine also includes: a winding mechanism 2, which is arranged on the frame 1 and is used for winding and releasing;

[0038] The sampling mechanism 5 is arranged on the winding mechanism 2, and the sampling mechanism 5 is retracted and released by the winding mechanism 2 to collect water samples;

[0039] The distance mechanism 4 is arranged on the frame 1. The distance mechanism 4 monitors the depth of the sampling mechanism 5 sinking into the water, and cooperates with the winding mechanism 2 to control the sampling mechanism 5 to collect water samples at different depths at a fixed distance;

[0040] The bottom adjusting mechanism 3 is arranged between the winding mechanism 2 and the frame 1. The bottom adjusting mechanism 3 is used to monitor the distance between the sampling mechanism 5 and the bottom of the water, and then adjust the position of the sampling mechanism 5 through the winding mechanism 2.

[0041] By setting the winding mechanism 2, the spacing mechanism 4 and the sampling mechanism 5, the sampling mechanism 5 can be placed in the water body according to the needs of use when the water sample is collected. When the sampling mechanism 5 is placed in the water, the spacing mechanism 4 can be used to proportionally monitor the depth of the sampling mechanism entering the water body. After the sampling mechanism 5 is moved to the bottom of the water, the spacing mechanism 4 can be used to adaptively adjust the water samples of equal distances and different depths according to the sampling mechanism 5 sinking to the bottom of the water at different depths. This reduces the workload of the staff and shortens the working time. In this way, different water depths can be achieved after the sampling mechanism 5 is placed in the water body at a single time. The sampling work of deep water samples is completed; by setting the bottom adjusting mechanism 3, it can cooperate with the reeling mechanism 2 to complete the real-time monitoring of the position of the sampling mechanism 5 after being driven by the water flow, and then the monitoring information can be fed back to the reeling mechanism 2 through the bottom adjusting mechanism 3, and the reeling mechanism 2 is used to retract and release the cable according to the proportional parameter setting, so that the sampling mechanism 5 can be successfully placed on the bottom of the water. If the cable is placed too much, the sampling mechanism 5 can be gradually moved by the reeling mechanism 2, thereby preventing the sampling mechanism 5 from tilting, which makes the actual distance between the sampling mechanism 5 and the water bottom have an error, thereby ensuring water sampling work for different water depths.

[0042] The winding mechanism 2 includes two first limiting chutes 21 provided in the frame 1. The inner walls of the two first limiting chutes 21 are slidably connected to a limited movable seat 22. A first spring 23 is fixedly connected between one side of the limited movable seat 22 and one side of the inner wall of the first limiting chute 21. A first motor 25 is fixedly connected to the top of the limited movable seat 22. The output end of the first motor 25 is fixedly connected to a reel 24. The reel 24 is rotatably connected to the limited movable seat 22.

[0043] During use, when the sampling mechanism 5 needs to be placed in the water body, the first motor 25 is controlled to operate and rotate the drum 24, so that the cable outside the drum 24 is released, so that the sampling mechanism 5 can be placed in the water body. When the sampling mechanism 5 is tilted by the water flow, the limit movable seat 22 at the bottom of the drum 24 is driven to move through the cable, thereby causing the limit movable seat 22 to slide in the first limit slide 21 and compress the first spring 23. The distance moved by the limit movable seat 22 in the first limit slide 21 is fed back to the water power to drive the tilt of the sampling mechanism 5 (such as Figure 11 As shown), when the position adjustment of the sampling mechanism 5 is completed, the sampling mechanism 5 touches the bottom of the water, causing the first motor 25 to rotate the reel 24 to reel in the cable, completing the position adjustment of the sampling mechanism 5. At this time, the compressed first spring 23 pushes the limit movable seat 22 to reset.

[0044] The sampling mechanism 5 includes a sampling barrel 51 fixedly connected to one end of a cable outside the reel 24. A plurality of sampling slots 56 are equidistantly formed inside the sampling barrel 51. The inner walls of the plurality of sampling slots 56 are each provided with a piston 57. The bottom of the piston 57 is fixedly connected to a connecting rod 58.

[0045] During use, a battery (not shown) is provided in the sampling tube 51 for providing electric energy. After the sampling mechanism 5 is placed on the bottom of the water through the winding mechanism 2, the bottom adjusting mechanism 3 and the distance fixing mechanism 4, the elliptical touch rod 410 touches the third touch switch 418 at the top, and then controls the third motor 52 at the bottom to operate. At this time, the sampling slot 56 at the bottom collects the water sample, and the water pressure pushes the piston 57 to move in the sampling slot 56, thereby completing the collection of the water sample at this depth. Afterwards, through the third touch switch 418 at different positions, Water samples of different water depths are collected in the sampling slots 56 at the corresponding positions. After the collection is completed, the water samples in the sampling slots 56 can be collected and tested in turn. The multiple sampling slots 56 are labeled from bottom to top as sampling slot No. 1 56, sampling slot No. 2 56 to sampling slot No. N 56, and the fourth touch switches 512 below the sampling slot No. 1 56, sampling slot No. 2 56 to sampling slot No. N 56 are labeled from bottom to top as fourth touch switch No. 1 512, fourth touch switch No. 2 512 to fourth touch switch No. N 512.

[0046] The sampling tube 51 has a limiting circular groove 59 formed inside. The limiting circular groove 59 is located below the sampling groove 56. A touch plate 510 is fixedly connected to the bottom of the connecting rod 58. A fourth spring 511 is fixedly connected between the top of the touch plate 510 and the top of the inner wall of the limiting circular groove 59. The fourth spring 511 is located outside the connecting rod 58. A fourth touch switch 512 is fixedly connected to the bottom of the inner wall of the limiting circular groove 59.

[0047] During use, when the piston 57 moves, the connecting rod 58 can drive the touch plate 510 to move downward in the limiting circular groove 59, and the downward moving touch plate 510 can stretch the fourth spring 511. When the sampling slot 56 completes water sampling, the touch plate 510 can touch the fourth touch switch 512, and the fourth touch switch 512 can feed back information to the winding mechanism 2, and then continue to move the sampling mechanism 5, and the elliptical touch rod 410 in the spacing mechanism 4 touches the third touch switch 418, and multiple third touch switches are opened. 418 are numbered from top to bottom as the third touch switch No. 1 418, the third touch switch No. 2 418 to the third touch switch No. N 418. After the water sampling and collection work of the sampling slot No. 1 56 is completed, the fourth touch switch No. 1 512 is triggered to feedback information, and the sampling mechanism 5 continues to move through the winding mechanism 2. When the elliptical touch rod 410 triggers the third touch switch No. 2 418 feedback information, the sampling slot No. 2 56 is controlled to perform water sampling and collection work. This can be done in this way to complete the equidistant collection work for different water depths.

[0048] A third motor 52 is fixedly connected to the interior of the sampling tube 51. The third motor 52 is located above the sampling slot 56. The output end of the third motor 52 is fixedly connected to a second reciprocating screw 53. The outer side of the second reciprocating screw 53 is threadedly connected to a threaded ring plate 54. The threaded ring plate 54 is slidably connected to the sampling tube 51. Four blocking blocks 55 are fixedly connected to the bottom of the threaded ring plate 54.

[0049] During use, when it is necessary to collect water in the sampling slot 56, the third motor 52 is controlled to rotate the second reciprocating screw 53, so that the rotating second reciprocating screw 53 drives the blocking block 55, and the four blocking blocks 55 slide in the sampling tube 51 to limit the threaded ring plate 54. When the threaded ring plate 54 opens the sampling slot 56, the collection work can be carried out. When the fourth touch switch 512 is triggered, feedback information is fed back to control the third motor 52 to run and move the blocking block 55 to block the sampling slot 56.

[0050] The spacing mechanism 4 includes a support frame 41 fixedly connected to the top of the frame 1, one side of the support frame 41 is fixedly connected to a fixed box 419, the internal rotation connection of the support frame 41 is connected to a limit wheel 44, one side of the support frame 41 is connected to two gears 45, both gears 45 are located in the fixed box 419, one side of the gear 45 is fixedly connected to a winding wheel 46, a winding belt 47 is provided between the two winding wheels 46, and one side of one of the limit wheels 44 is fixedly connected to one side of the gear 45;

[0051] When in use, when the sampling mechanism 5 is placed in the water body, the limiting wheel 44 will be driven to rotate by the cable, and the limiting wheel 44 can drive the upper winding wheel 46 to rotate. When the upper winding wheel 46 rotates, the lower winding wheel 46 rotates in the opposite direction, thereby completing the downward position monitoring of the sampling mechanism 5. When the upper winding wheel 46 rotates, the winding belt 47 outside the lower winding wheel 46 can be wound and driven (such as Figure 12 As shown), the winding wheel 46 at the bottom releases the winding tape 47. The winding tape 47 is reeled in and out by the upper and lower winding wheels 46. When the sampling mechanism 5 is reeled in, the lower winding wheel 46 reels in all the winding tapes 47. When the sampling mechanism 5 is put into the water, the upper winding wheel 46 reels in the winding tape 47 in the lower winding wheel 46. Then, the depth of the sampling mechanism 5 entering the water body can be displayed by turning the winding wheel 46 at the bottom with the winding tape 47 reeled in. The limiting wheel 44 is driven by the cable for one circle, so that the two winding wheels 46 rotate the same circle at the same time, so that the downward movement distance of the sampling mechanism 5 is the same as the winding tape 47. The length of 47 that is retracted and extended is consistent, the downward movement distance of the sampling mechanism 5 and the length of the reeling belt 47 are set at 1:1, and the thickness of the reeling belt 47 and the upward movement distance of the elliptical touch rod 410 are set at 3:1. In this way, when the thickness of the reeling belt 47 on the lower reeling wheel 46 is reduced by three centimeters, the elliptical touch rod 410 moves up one centimeter, and when the reeling wheel 46 with the reeling belt 47 wound on the lower side gradually reels with the reeling wheel 46 above, the elliptical touch rod 410 presses against the reeling belt 47 in the lower reeling wheel 46, and the gradual reduction of the reeling belt 47 in the lower reeling wheel 46 will cause the position of the elliptical touch rod 410 to move up.

[0052] A third limiting slot 42 is defined within the fixed box 419. A limiting block 48 is slidably connected to the inner wall of the third limiting slot 42. A third spring 49 is fixedly connected to the top of the limiting block 48. The third spring 49 is located within the third limiting slot 42. An elliptical contact rod 410 is fixedly connected to one side of the limiting block 48.

[0053] During use, when the elliptical touch rod 410 gradually moves upward, it will drive the limit block 48 to slide upward in the third limit slide groove 42, and the stretched third spring 49 will drive the limit block 48 to move upward and reset, and then the stretched third spring 49 can make the elliptical touch rod 410 always press against the winding belt 47 in the winding wheel 46 below.

[0054] A second motor 411 is fixedly connected to one side of the support frame 41, and a first reciprocating screw rod 412 is fixedly connected to the output end of the second motor 411. A fourth limiting slide groove 43 is provided inside the support frame 41, and a plurality of limiting movable blocks 413 are slidably connected to the inner wall of the fourth limiting slide groove 43. The first reciprocating screw rod 412 is threadedly connected to the uppermost limiting movable block 413, and two first middle rotating plates 414 are rotatably connected between the two limiting movable blocks 413. The two first middle rotating plates 414 are rotatably connected to each other. A fixed block 416 is fixedly connected to one side of the support frame 41, and two second middle rotating plates 415 are rotatably connected between the fixed block 416 and the lowermost limiting movable block 413. The two second middle rotating plates 415 are rotatably connected to each other. A second touch switch 417 is fixedly connected to one side of the fixed block 416, and a third touch switch 418 is fixedly connected to one side of the plurality of limiting movable blocks 413.

[0055] When in use, the plurality of third touch switches 418 are numbered from top to bottom as the third touch switch No. 1 418, the third touch switch No. 2 418 to the third touch switch No. N 418. After the sampling mechanism 5 is adjusted to the underwater position, the elliptical touch rod 410 is located above the third touch switch No. 1 418. Then the second motor 411 is controlled to rotate the first reciprocating screw 412. The rotating first reciprocating screw 412 drives the limiting movable block 413 on one side of the third touch switch No. 1 418 to move upward. The first middle rotating plate 414 can drive the plurality of limiting movable blocks 413 below. The fixed fixed block 416 can limit the bottom limiting movable block 413 through the two second middle rotating plates 415. In this way, multiple limiting movable blocks 413 can slide in the fourth limiting slide groove 43, and then the third touch switch No. 1 418 can be triggered by the elliptical touch rod 410, and the water sampling of the sampling slot No. 1 56 can be controlled, and then the operation of the second motor 411 can be stopped. At this time, multiple third touch switches 418 and the second touch switch 417 complete the equal-interval position adjustment, and when the sampling mechanism 5 is recovered, the winding wheel 46 below rewinds the winding belt 47, and then the pressed elliptical touch rod 410 can be pushed down. When the elliptical touch rod 410 triggers the third touch switch No. 2 418, feedback is fed back to control the sampling slot No. 2 56 to collect water samples, and so on. When the elliptical touch rod 410 triggers the second touch switch 417, the water sampling work is stopped.

[0056] Example 2

[0057] like Figures 9 and 10 In the second embodiment, other structures remain unchanged, and the difference from the first embodiment is:

[0058] The bottom adjustment mechanism 3 includes an insulating cover 31 fixedly connected to the top of the frame 1. A second limiting slot 32 is formed inside the insulating cover 31. A limiting magnet 33 is slidably connected to the inner wall of the second limiting slot 32. A second spring 36 is fixedly connected between one side of the limiting magnet 33 and one side of the inner wall of the insulating cover 31. An electromagnet 37 is fixedly connected to one side of the inner wall of the insulating cover 31.

[0059] During use, when the water flow drives the sampling mechanism 5 to move, it can drive the limit movable seat 22 to slide in the first limit sliding groove 21 to compress the first spring 23, so that the limit movable seat 22 drives the second conductive power block 39 to move, and by energizing the second conductive power block 39, the second conductive power block 39 conducts current to the first conductive power block 38, and the electromagnetic size of the electromagnet 37 is adjusted according to the contact surface between the second conductive power block 39 and the first conductive power block 38. When the contact surface between the second conductive power block 39 and the first conductive power block 38 is larger, the conductive current is stronger and the magnetism of the electromagnet 37 is stronger. On the contrary, when the contact surface between the second conductive power block 39 and the first conductive power block 38 is smaller, the conductive current is weaker and the magnetism of the electromagnet 37 is stronger. 7 is weaker, and the magnetic force of the electromagnet 37 is fed back to the first motor 25 through the parameters, so that the number of turns of the first motor 25 rotating the reel 24 is proportional to the magnetic force of the electromagnet 37, which is set at 1:2 or 1:3. The magnetic poles of the electromagnet 37 and the limiting magnet 33 are opposite, so that the electromagnet 37 can adsorb the limiting magnet 33 and slide in the second limiting slot 32, so that the moving limiting magnet 33 stretches the second spring 36. In this way, the first motor 25 is controlled to rotate the reel 24 to continue to release the cable, so that the sampling mechanism 5 touches the bottom. After that, the second conductive power block 39 can be driven to adjust the contact surface with the first conductive power block 38 according to the position of the limiting movable seat 22, and then the first motor 25 can be controlled to reel in the excess cable.

[0060] The bottom of the electromagnet 37 is connected to a first conductive block 38 via a wire. One side of the first conductive block 38 is fixedly connected to one side of the inner wall of the insulating cover 31. A second conductive block 39 is fixedly connected to one side of the limit movable seat 22. An elliptical contact head 34 is fixedly connected to one side of the limit magnet 33. A first touch switch 35 is fixedly connected to one side inside the insulating cover 31.

[0061] During use, after the position of the sampling mechanism 5 is adjusted, the limit movable seat 22 drives the second conductive power block 39 to expand the contact surface with the first conductive power block 38, so that the electromagnet 37 adsorbs the limit magnet 33 tightly. At this time, the first touch switch 35 on one side of the limit magnet 33 is driven to trigger the elliptical contact head 34, thereby stopping the operation of the bottom adjustment mechanism 3, and then feeding back to the winding mechanism 2, the spacing mechanism 4 and the sampling mechanism 5, and starting the equidistant water sampling work at different depths.

[0062] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0063] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A water sampling device for environmental monitoring, characterized in that :Includes: rack; The machine further comprises: a winding mechanism, the winding mechanism being arranged on the frame and being used for winding and releasing; A sampling mechanism, wherein the sampling mechanism is arranged on the winding mechanism, and the sampling mechanism is retracted and deployed by the winding mechanism to collect water samples; A distance mechanism is provided on the frame, the distance mechanism monitors the depth of the sampling mechanism submerged in the water, and cooperates with the winding mechanism to control the sampling mechanism to collect water samples at different depths at a fixed distance; A bottom adjustment mechanism is provided between the winding mechanism and the frame, and is used to monitor the distance between the sampling mechanism and the water bottom, and then adjust the position of the sampling mechanism through the winding mechanism; The winding mechanism includes two first limit slides opened in the frame, the inner walls of the two first limit slides are slidably connected to the limit movable seat, a first spring is fixedly connected between one side of the limit movable seat and one side of the inner wall of the first limit slide, the top of the limit movable seat is fixedly connected to the first motor, the output end of the first motor is fixedly connected to the reel, the reel is rotatably connected to the limit movable seat, and the tilt of the sampling mechanism is driven by the water power feedback based on the distance moved by the limit movable seat in the first limit slide.

2. The water sampling device for environmental monitoring according to claim 1, characterized in that :The sampling mechanism includes a sampling cylinder fixedly connected to one end of the cable outside the drum, and a plurality of sampling grooves are equidistantly provided inside the sampling cylinder. The inner walls of the plurality of sampling grooves are each provided with a piston, and the bottom of the piston is fixedly connected to a connecting rod.

3. The water sampling device for environmental monitoring according to claim 2, characterized in that : A limiting circular groove is provided inside the sampling tube, and the limiting circular groove is located below the sampling groove. A touch plate is fixedly connected to the bottom of the connecting rod, and a fourth spring is fixedly connected between the top of the touch plate and the top of the inner wall of the limiting circular groove. The fourth spring is located on the outside of the connecting rod, and a fourth touch switch is fixedly connected to the bottom of the inner wall of the limiting circular groove.

4. The water sampling device for environmental monitoring according to claim 3 is characterized in that : The inside of the sampling tube is fixedly connected to a third motor, and the third motor is located above the sampling slot. The output end of the third motor is fixedly connected to a second reciprocating screw rod, and the outer side of the second reciprocating screw rod is threadedly connected to a threaded ring plate, and the threaded ring plate is slidably connected to the sampling tube, and four sealing blocks are fixedly connected to the bottom of the threaded ring plate.

5. The water sampling device for environmental monitoring according to claim 1, characterized in that :The spacing mechanism includes a support frame fixedly connected to the top of the frame, one side of the support frame is fixedly connected to a fixed box, the internal rotation of the support frame is connected to a limiting wheel, one side of the support frame is rotatably connected to two gears, both of the two gears are located in the fixed box, one side of the gear is fixedly connected to a winding wheel, a winding belt is provided between the two winding wheels, and one side of one of the limiting wheels is fixedly connected to one side of the gear.

6. The water sampling device for environmental monitoring according to claim 5, characterized in that : A third limiting slot is provided inside the fixed box, the inner wall of the third limiting slot is slidably connected to a limiting block, the top of the limiting block is fixedly connected to a third spring, the third spring is located in the third limiting slot, and one side of the limiting block is fixedly connected to an elliptical touch rod.

7. The water sampling device for environmental monitoring according to claim 6, characterized in that : One side of the support frame is fixedly connected to the second motor, and the output end of the second motor is fixedly connected to the first reciprocating screw rod, and the support frame is provided with a fourth limit slide groove, the inner wall of the fourth limit slide groove is slidably connected to multiple limit movable blocks, the first reciprocating screw rod is threadedly connected to the uppermost limit movable block, and two first middle rotating plates are rotatably connected between the two limit movable blocks, and the two first middle rotating plates are rotatably connected between the two first middle rotating plates, and the two second middle rotating plates are rotatably connected between each other, and one side of the fixed block is fixedly connected to the second touch switch, and one side of multiple limit movable blocks is fixedly connected to the third touch switch.

8. The water sampling device for environmental monitoring according to claim 1, characterized in that :The bottom adjustment mechanism includes an insulating cover fixedly connected to the top of the frame, a second limiting slide groove is opened inside the insulating cover, the inner wall of the second limiting slide groove is slidably connected to a limiting magnet, a second spring is fixedly connected between one side of the limiting magnet and one side of the inner wall of the insulating cover, and an electromagnet is fixedly connected to one side of the inner wall of the insulating cover.

9. The water sampling device for environmental monitoring according to claim 8, characterized in that : The bottom of the electromagnet is connected to a first conductive power block through a wire, one side of the first conductive power block is fixedly connected to one side of the inner wall of the insulating cover, one side of the limit movable seat is fixedly connected to a second conductive power block, one side of the limit magnet is fixedly connected to an elliptical contact head, and one side inside the insulating cover is fixedly connected to a first touch switch.

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