Irrigation water quality monitoring and flowing water quality sampling device

Abstract

The invention provides an irrigation water quality monitoring and flowing water quality sampling device, and relates to the technical field of water quality monitoring and sampling, the irrigation water quality monitoring and flowing water quality sampling device comprises a snorkeling mechanism, and a sampler is fixedly mounted on the snorkeling mechanism; a plurality of sampling barrels are fixedly mounted at the bottom in the sampler, and sampling mechanisms are arranged in the plurality of sampling barrels. Through rotation of the two fan blade scrapers, buoys (moss), weeds and the like on the outer surface of the sampling barrel can be scraped and cleaned, water flow on the peripheral side of the sampling barrel can be promoted to flow when the two fan blade scrapers rotate, the sampling barrel is prevented from being blocked, meanwhile, the round scrapers can clean the inner wall of the sampling barrel before the partition plate descends for sampling, and the sampling efficiency is improved. Water below the round scraper in the sampling barrel circulates around the sampling barrel, so that the water quality monitoring effect is prevented from being influenced by water staying at the bottom in the sampling barrel for a long time. The partition plate fixedly connected with the bottom of the sampling rod is driven to descend firstly and then ascend, so that the partition plate does vertical movement of descending firstly and then ascending, and water quality sampling of the sampling barrel is achieved.

Description

Technical Field

[0001] This invention belongs to the field of water quality monitoring and sampling technology, specifically a mobile water quality sampling device for irrigation water quality monitoring. Background Technology

[0002] Irrigation water mainly comes from surface water, groundwater and rainwater. The quality of irrigation water directly affects agricultural production safety and the ecological environment. Water quality monitoring is the process of monitoring and measuring the types of pollutants in water bodies, the concentration of various pollutants and their changing trends, and evaluating the water quality status.

[0003] Before water quality monitoring, sampling is required. However, existing sampling tubes cannot replace the water inside or clean the inner wall of the tube during sampling. Water that has passed through different non-monitoring watersheds and remains in the sampling tube will affect the monitoring results after sampling. Summary of the Invention

[0004] The purpose of this invention is to address the problem that water remaining in the sampling tube after passing through different non-monitoring water areas can affect the monitoring effect after sampling, and to provide a flowing water quality sampling device for irrigation water quality monitoring.

[0005] The technical solution adopted in this invention is as follows: a mobile water quality sampling device for monitoring irrigation water quality, including a buoyancy mechanism, on which a sampler is fixedly installed; a plurality of sampling cylinders are fixedly installed at the bottom of the sampler, and each of the plurality of sampling cylinders is provided with a sampling mechanism.

[0006] A motor is fixedly installed at the top of the sampler, and a central wheel is fixedly connected to the output end of the motor. Several main tooth blocks are provided on the circumferential side of the central wheel.

[0007] The sampling mechanism includes a sampling rod, a partition plate that slides on the inner wall of the sampling cylinder and is fixedly connected to the bottom of the sampling rod, a first traction plate that is rotatably connected to the top of the sampling rod, a second traction plate that is rotatably connected to the other end of the first traction plate, a traction shaft that is rotatably connected to the other end of the second traction plate, a traction wheel that is fixedly connected to one side of the traction shaft, a transmission mechanism that is provided on one side of the traction wheel, a worm gear that is provided at the other end of the transmission mechanism, a worm that is fitted to the circumferential side of the worm gear, and a driven gear that is fixedly connected to the top of the worm.

[0008] The aforementioned main gear blocks and driven gears mesh with each other.

[0009] In a preferred embodiment, the sampling mechanism includes a plurality of vertical side plates fixedly installed on the inner wall of the sampler. A mounting top plate is fixedly connected to one side of each vertical side plate. A fixing round block is fixedly connected to the bottom of the mounting top plate. A snap-fit ​​plate is hinged to the periphery of the fixing round block. A snap-fit ​​spring is fixedly connected between the snap-fit ​​plate and the fixing round block.

[0010] A snap ring is fixedly connected to the top of the gear, and the inner wall of the snap ring has several snap grooves.

[0011] In a preferred embodiment, the sampling rod is slidably fitted inside the top of the sampling cylinder.

[0012] The worm gear rotates and engages with the side of the vertical side plate.

[0013] The worm gear has a main drive shaft fixedly connected to the center of one side, and the traction wheel has a driven drive shaft fixedly connected to the center of one side. Both the main drive shaft and the driven drive shaft are rotatably fitted on one side of the vertical side plate.

[0014] The transmission mechanism includes a main drive wheel, a driven drive wheel, and a transmission chain. The main drive wheel is fixedly connected to the circumferential side of the main drive shaft, and the driven drive wheel is fixedly connected to the circumferential side of the driven drive shaft.

[0015] In a preferred embodiment, a circular scraper is slidably fitted on the inner wall of the sampling cylinder below the partition plate, and an elastic spring is fixedly connected between the circular scraper and the bottom of the sampling cylinder.

[0016] In a preferred embodiment, a rack and a limiting plate are fixedly connected to the bottom of the circular scraper, and the rack and the limiting plate both pass through the bottom of the sampling cylinder and slide vertically together with the bottom of the sampling cylinder.

[0017] The bottom of the sampling cylinder is rotatably fitted with a rotating rod, and one end of the rotating rod is fixedly connected to a rotating gear that meshes with a rack.

[0018] In a preferred embodiment, a conical tooth is fixedly connected to the other end of the rotating rod, and a conical tooth ring is rotatably fitted on the outer peripheral side of the sampling cylinder at the bottom of the sampler. Two fan blades are fixedly connected to the conical tooth ring, and the two fan blades are fitted together on the outer wall of the sampling cylinder. A limiting ring is fixedly connected to the top of the two fan blades, and the limiting ring is rotatably fitted at the bottom of the sampler.

[0019] In a preferred embodiment, a plurality of sampling holes are provided on the peripheral side of each of the plurality of sampling tubes, and the plurality of sampling tubes are disposed at the bottom of the sampler.

[0020] In a preferred embodiment, a sampling controller is fixedly installed at the bottom of the sampler.

[0021] The snorkeling mechanism is equipped with a central controller at its top. The central controller contains a GPS positioning module, a signal transceiver module, and a power control module. The snorkeling mechanism and the central controller are all interconnected with the power control module.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In this invention, the traction wheel rotates 360 degrees by meshing with several main gear blocks and driven gears on the side of the central wheel. This causes the partition plate, which is fixedly connected to the bottom of the sampling rod, to first descend to the position below the bottom of the sampler, and then rise to the position above the bottom of the sampler. This achieves the vertical movement of the partition plate, which first descends and then rises, thus achieving water quality sampling of the sampling tube.

[0023] 2. In this invention, when the partition plate descends, the water at the bottom of the sampling tube is pressed towards the bottom of the sampling tube by the partition plate, and the water at the bottom of the sampling tube flows to the sides of the sampling tube. The water outside the sampling tube enters the sampling tube through the holes around the sampling tube, which promotes the flow of water quality before sampling and avoids the water that stays at the bottom of the sampling tube for a long time from affecting the water quality monitoring effect.

[0024] 3. In this invention, the rotation of the two fan blades can scrape and clean the floating objects (moss) and weeds on the outer surface of the sampling tube. The rotation of the two fan blades can also promote the flow of water around the sampling tube, preventing blockage. At the same time, the circular scraper can also clean the inner wall of the sampling tube before the partition plate descends to collect the sample, and allow the water located below the circular scraper in the sampling tube to flow around the sampling tube, preventing water that stays at the bottom of the sampling tube for a long time from affecting the water quality monitoring effect.

[0025] 4. In this invention, through the elastic action of the snap-fit ​​plate that is hinged to the circumferential side of the fixed round block and the snap-fit ​​spring that is fixedly connected between the fixed round block, after the main gear block and the driven gear are separated, the snap-fit ​​plate and the snap-fit ​​groove on the driven gear are engaged, thereby realizing the self-locking of the driven gear to stop rotating, and realizing the self-locking of the sampling mechanism after completing the water quality sampling. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the irrigation water quality monitoring and mobile water quality sampling device of the present invention; Figure 2 This is a bottom view of the irrigation water quality monitoring and flowing water quality sampling device of the present invention; Figure 3 for Figure 2 Enlarged diagram of A in the middle; Figure 4 Cross-sectional view of the sampler, sampling cylinder, and sampling mechanism. Figure 5 for Figure 4 Enlarged diagram of B in the middle; Figure 6 This is a cross-sectional view of the sampler; Figure 7 for Figure 6 Enlarged diagram of C in the middle; Figure 8 This is an assembly diagram of the sampling cylinder and sampling mechanism; Figure 9for Figure 8 Enlarged diagram of D in the middle; Figure 10 for Figure 8 Enlarged diagram of E in the middle; Figure 11 for Figure 10 Enlarged diagram of F in the middle; Figure 12 This is a schematic diagram of the sampling mechanism.

[0027] The diagram shows: 1. Snorkeling mechanism; 2. Sampler; 3. Sampling cylinder; 4. Sampling mechanism; 101. Central controller; 201. Motor; 202. Central wheel; 2021. Main gear block; 203. Sampling controller; 301. Circular scraper; 302. Rack; 303. Limiting plate; 304. Elastic spring; 305. Rotating rod; 3051. Rotating gear; 3052. Bevel gear; 306. Bevel gear ring; 3061. Fan blade scraper; 3062. Limiting ring; 307. 401. Sampling hole; 402. Sampling rod; 403. Divider plate; 404. First traction plate; 405. Second traction plate; 406. Traction shaft; 407. Traction wheel; 408. Driven shaft; 409. Transmission mechanism; 4000. Worm gear; 401. Main drive shaft; 4000. Worm; 410. Driven gear; 4101. Snap ring; 4102. Snap groove; 411. Vertical side plate; 412. Fixing block; 4121. Snap plate; 4122. Snap spring. Detailed Implementation

[0028] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings of the embodiments of this invention. Obviously, what is described is only a part of this invention, and not all of it. Based on this invention, all other innovations obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0029] like Figures 1-12As shown, this embodiment of the invention provides a flowing water quality sampling device for irrigation water quality monitoring, including a buoyancy mechanism 1. A sampler 2 is fixedly installed on the buoyancy mechanism 1. Several sampling cylinders 3 are fixedly installed at the bottom of the sampler 2, and each of the sampling cylinders 3 is provided with a sampling mechanism 4. A motor 201 is fixedly installed at the top of the sampler 2. A central wheel 202 is fixedly connected to the output end of the motor 201. Several main tooth blocks 2021 are provided on the circumferential side of the central wheel 202. The sampling mechanism 4 includes a sampling rod 401. A partition plate that slides on the inner wall of the sampling cylinder 3 is fixedly connected to the bottom of the sampling rod 401. 402, a first traction plate 403 is rotatably fitted to the top of the sampling rod 401, a second traction plate 404 is rotatably fitted to the other end of the first traction plate 403, a traction shaft 405 is rotatably fitted to the other end of the second traction plate 404, a traction wheel 406 is fixedly connected to one side of the traction shaft 405, a transmission mechanism 407 is provided on one side of the traction wheel 406, a worm gear 408 is provided at the other end of the transmission mechanism 407, a worm 409 is fitted to the circumferential side of the worm gear 408, and a driven gear 410 is fixedly connected to the top of the worm 409; several main gear blocks 2021 mesh with the driven gear 410. The sampling mechanism 4 includes several vertical side plates 411 fixedly installed on the inner wall of the sampler 2. A mounting top plate is fixedly connected to one side of the vertical side plate 411. A fixing block 412 is fixedly connected to the bottom of the mounting top plate. A snap-fit ​​plate 4121 is hinged to the periphery of the fixing block 412. A snap-fit ​​spring 4122 is fixedly connected between the snap-fit ​​plate 4121 and the fixing block 412. A snap-fit ​​ring 4101 is fixedly connected to the top of the gear 410. Several snap-fit ​​grooves 4102 are opened on the inner wall of the snap-fit ​​ring 4101. The sampling rod 401 is slidably fitted inside the top of the sampling cylinder 3; the worm gear 409 is rotatably fitted on the side of the vertical side plate 411; the worm wheel 408 is fixedly connected to the center of one side of the main drive shaft 4081, and the traction wheel 406 is fixedly connected to the center of one side of the driven drive shaft 4061. Both the main drive shaft 4081 and the driven drive shaft 4061 are rotatably fitted on one side of the vertical side plate 411; the transmission mechanism 407 includes a main drive wheel, a driven drive wheel and a transmission chain. The main drive wheel is fixedly connected to the circumferential side of the main drive shaft 4081, and the driven drive wheel is fixedly connected to the circumferential side of the driven drive shaft 4061.

[0030] Specifically, a circular scraper 301 is slidably fitted on the inner wall of the sampling cylinder 3 below the partition plate 402, and an elastic spring 304 is fixedly connected between the circular scraper 301 and the bottom of the sampling cylinder 3. A rack 302 and a limiting plate 303 are fixedly connected to the bottom of the circular scraper 301. Both the rack 302 and the limiting plate 303 pass through the bottom of the sampling cylinder 3, and the limiting plate 303 and the bottom of the sampling cylinder 3 slide vertically together. A rotating rod 305 is rotatably fitted on the outer bottom of the sampling cylinder 3, and a rotating gear 3051 that meshes with the rack 302 is fixedly connected to one end of the rotating rod 305. A bevel gear 3052 is fixedly connected to the other end of the rotating rod 305. A bevel gear ring 306 is rotatably fitted on the outer periphery of the sampling cylinder 3, located at the bottom of the sampler 2. Two fan blades 3061 are fixedly connected to the bevel gear ring 306, and the two fan blades 3061 are fitted against the outer wall of the sampling cylinder 3. A limit ring 3062 is fixedly connected to the top of the two fan blades 3061, and the limit ring 3062 is rotatably fitted at the bottom of the sampler 2. Several sampling holes 307 are opened on the periphery of several sampling cylinders 3, and several sampling cylinders 3 are located at the bottom of the sampler 2.

[0031] Furthermore, a sampling controller 203 is fixedly installed at the bottom of the sampler 2; a central controller 101 is installed at the top of the snorkeling mechanism 1. The central controller 101 is equipped with a GPS positioning, signal receiving / transmitting module and a power control module. The snorkeling mechanism 1 and the central controller 101 are both connected to the power control module.

[0032] After the sampler 2 is installed on the snorkeling mechanism 1, the snorkeling mechanism 1 is placed in the water. Then, a signal is remotely sent to the central controller 101 to control the snorkeling mechanism 1 to dive into the required water area and depth. After reaching the designated position, a sampling signal is remotely sent to the central controller 101 to control the sampling structure 4 inside the sampler 2 to take a sample. Specifically, the sampling tube 3 is used to sample the water quality. After the sampling is completed, a signal is sent to the central controller 101 to remotely control the snorkeling mechanism 1 to return to the surface. The staff then removes the sampling tube 3 from the sampler 2 and performs water quality testing on the water in the sampling tube 3.

[0033] The specific process of water sampling by sampling cylinder 3 is as follows: The motor 201, fixedly installed at the top of the sampler 2, is started, causing the central wheel 202, fixedly connected to the output end of the motor 201, to rotate a fixed angle of 90 degrees. During the rotation of the central wheel 202, it drives the driven gear 410, which meshes with several main gear blocks 2021 on the circumferential side of the central wheel 202, to rotate. This drives the worm 409, fixedly connected to the bottom of the driven gear 410, to rotate. Through the cooperation of the worm 409 and the worm wheel 408 at one end of the transmission mechanism 407, the transmission mechanism 407 rotates internally. Through the transmission mechanism 407, the traction wheel 406 at the other end of the transmission mechanism 407 rotates. In the initial state, the first... Both traction plates 403 and 404 move to their highest points, and are parallel to each other. The traction wheel 406 rotates, causing the traction shaft 405, fixedly connected to one side of the traction wheel 406, to rotate around the traction wheel 406. This, in turn, causes the second traction plate 404 to rotate around the traction shaft 405. The other end of the second traction plate 404 rotates in conjunction with the first traction plate 403. During the meshing of several main gear blocks 2021 and driven gear 410 on the circumferential side of the central wheel 202, when the traction wheel 406 rotates 180 degrees, the sampling rod 401, rotating at the bottom of the first traction plate 403, descends to its lowest point. The traction wheel 406 then rotates... When the sampling rod 401, which rotates 306 degrees at the bottom of the first traction plate 403, moves up again to the same position as the initial height. During the engagement of several main gear blocks 2021 on the circumferential side of the central wheel 202 and the driven gear 410, the traction wheel 406 rotates 360 degrees. During this 360-degree rotation, the partition plate 402 fixedly connected to the bottom of the sampling rod 401 first descends to the position below the bottom of the sampler 2 inside the sampling cylinder 3, and then rises to the initial height, i.e., above the bottom of the sampler 2. This achieves water quality sampling of the sampling cylinder 3. The meshing of gear 410 causes the traction wheel 406 to rotate 360 ​​degrees, driving the partition plate 402, which is fixedly connected to the bottom of the sampling rod 401, to first descend to a position below the bottom of the sampler 2, and then rise to a position above the bottom of the sampler 2. This achieves the vertical movement of the partition plate 402, which descends and then rises, thus achieving water quality sampling of the sampling tube 3. Furthermore, when the partition plate 402 descends, the water at the bottom of the sampling tube 3 is pressed towards the bottom of the sampling tube 3 by the partition plate 402, and the water at the bottom of the sampling tube 3 flows to the sides of the sampling tube 3. Water from outside the sampling tube 3 enters the sampling tube 3 through the holes around the sampling tube 3, promoting the flow of water quality before sampling and preventing water that has been stagnant at the bottom of the sampling tube 3 for a long time from affecting the water quality monitoring effect.

[0034] After the main gear blocks 2021 and the driven gear 410 separate from the circumferential side of the central wheel 202 and the central wheel 202 rotates 90 degrees, the sampling controller 203 controls the motor 201 to shut down. At this time, due to the elastic action of the snap-fit ​​plate 4121 hinged to the circumferential side of the fixed circular block 412 and the snap-fit ​​spring 4122 fixedly connected between the fixed circular block 412, the snap-fit ​​groove 4102 on the driven gear 410 when it is not rotating engages with the snap-fit ​​plate 4121, thus restricting the rotation of the driven gear 410. When the driven gear 410 is subjected to the action of the main gear blocks 2021, it rotates counterclockwise (towards...). Figure 7 (With the direction as the standard), the elastic action of the snap-fit ​​spring 4122, which is fixedly connected between the snap-fit ​​plate 4121 and the fixed round block 412 through the hinged engagement of the snap-fit ​​plate 4121 and the snap-fit ​​groove 4102 on the snap-fit ​​plate 4121 and the snap-fit ​​groove 4102 on the snap-fit ​​plate 4121 and the snap-fit ​​groove 4102 on the snap-fit ​​groove 4102, so that the snap-fit ​​groove 410 on the snap-fit ​​plate 4121 and the snap-fit ​​groove 4102 on the snap-fit ​​groove 4102 can be engaged to achieve self-locking of the snap-fit ​​groove 410 and stop its rotation. This achieves self-locking of the sampling mechanism 4 after it has completed water quality sampling.

[0035] When the sampling mechanism 4 performs sampling, as the partition plate 402, which is fixedly connected to the bottom of the sampling rod 401, descends, the partition plate 402 exerts a downward force on the circular scraper 301, which is slidably fitted to the inner wall of the sampling cylinder 3. This compresses the circular scraper 301 and the elastic spring 304, which is fixedly connected to the bottom of the sampling cylinder 3. This causes the rack 302 and the limiting plate 303, which are fixedly connected to the bottom of the circular scraper 301, to move downward relative to the sampling cylinder 3. This, in turn, causes the rotation of the rack 302, which is located at the bottom of the sampling cylinder 3 and meshes with the outer bottom of the rack 302, to rotate. The rotation of gear 3051 causes the rotating rod 305, which is fixedly connected to the center of one side of the rotating gear 3051, to rotate. This, in turn, causes the bevel gear 3052, which is fixedly connected to the other end of the circumference of the rotating rod 305, to rotate. The rotation of the bevel gear 3052 causes the bevel gear ring 306, which meshes with the bevel gear 3052, to rotate. This causes the two fan blades 3061, which are fixedly connected to the top of the bevel gear ring 306, to rotate. The limiting ring 3062, which is fixedly connected to the top of the two fan blades 3061, rotates and engages with the bottom of the sampling cylinder 3. The rotation of the two blade scrapers 3061 can scrape and clean the floating objects (moss) and weeds on the outer surface of the sampling tube 3. It can also promote the flow of water around the sampling tube 3 when the two blade scrapers 3061 rotate, so as to avoid clogging the sampling tube 3. At the same time, the round scraper 301 can also clean the inner wall of the sampling tube 3 before the partition plate 402 descends to take samples, and circulate the water in the sampling tube 3 below the round scraper 301 to the surrounding area of ​​the sampling tube 3, so as to avoid the water that stays at the bottom of the sampling tube 3 for a long time from affecting the water quality monitoring effect.

[0036] The above-mentioned sampling mechanism 4 and sampling cylinder 3 work together to achieve the cleaning of sampling cylinder 3 before sampling and water quality renewal. Furthermore, through the cooperation of main gear block 2021 and several driven gears 410 in sampling mechanism 4, sampling of sampling cylinder 3, which cooperates with sampling mechanism 4, is achieved in sequence.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mobile water quality sampling device for irrigation water quality monitoring, comprising a buoyancy mechanism (1), wherein a sampler (2) is fixedly installed on the buoyancy mechanism (1), characterized in that: The sampler (2) has several sampling tubes (3) fixedly installed at the bottom, and each of the sampling tubes (3) is equipped with a sampling mechanism (4). A motor (201) is fixedly installed at the top of the sampler (2), and a central wheel (202) is fixedly connected to the output end of the motor (201). Several main tooth blocks (2021) are provided on the circumferential side of the central wheel (202). The sampling mechanism (4) includes a sampling rod (401), a partition plate (402) that slides on the inner wall of the sampling cylinder (3) is fixedly connected to the bottom of the sampling rod (401), a first traction plate (403) is rotatably connected to the top of the sampling rod (401), a second traction plate (404) is rotatably connected to the other end of the first traction plate (403), a traction shaft (405) is rotatably connected to the other end of the second traction plate (404), a traction wheel (406) is fixedly connected to one side of the traction shaft (405), a transmission mechanism (407) is provided on one side of the traction wheel (406), a worm gear (408) is provided at the other end of the transmission mechanism (407), a worm (409) is fitted to the circumferential side of the worm gear (408), and a driven gear (410) is fixedly connected to the top of the worm (409). Several of the main gear blocks (2021) and the driven gear (410) mesh with each other.

2. The irrigation water quality monitoring mobile water quality sampling device as described in claim 1, characterized in that: The sampling mechanism (4) includes several vertical side plates (411) fixedly installed on the inner wall of the sampler (2). A mounting top plate is fixedly connected to one side of the vertical side plate (411). A fixing block (412) is fixedly connected to the bottom of the mounting top plate. A snap-fit ​​plate (4121) is hinged to the periphery of the fixing block (412). A snap-fit ​​spring (4122) is fixedly connected between the snap-fit ​​plate (4121) and the fixing block (412). A snap ring (4101) is fixedly connected to the top of the gear (410), and the inner wall of the snap ring (4101) is provided with several snap grooves (4102).

3. The irrigation water quality monitoring mobile water quality sampling device as described in claim 2, characterized in that: The sampling rod (401) is slidably fitted inside the top of the sampling tube (3); The worm gear (409) is rotatably fitted on the side of the vertical side plate (411); The worm gear (408) is fixedly connected to the center of one side of the main drive shaft (4081), and the traction wheel (406) is fixedly connected to the center of one side of the driven shaft (4061). The main drive shaft (4081) and the driven shaft (4061) are both rotatably fitted on one side of the vertical side plate (411). The transmission mechanism (407) includes a main drive wheel, a driven wheel, and a transmission chain. The main drive wheel is fixedly connected to the circumferential side of the main drive shaft (4081), and the driven wheel is fixedly connected to the circumferential side of the driven shaft (4061).

4. The irrigation water quality monitoring mobile water quality sampling device as described in claim 3, characterized in that: The inner wall of the sampling tube (3) is slidably fitted with a circular scraper (301) below the partition plate (402), and an elastic spring (304) is fixedly connected between the circular scraper (301) and the bottom of the sampling tube (3).

5. The irrigation water quality monitoring mobile water quality sampling device as described in claim 4, characterized in that: The bottom of the circular scraper (301) is fixedly connected to a rack (302) and a limiting plate (303). The rack (302) and the limiting plate (303) both pass through the bottom of the sampling cylinder (3), and the limiting plate (303) and the bottom of the sampling cylinder (3) slide together vertically. The bottom of the sampling tube (3) is rotatably fitted with a rotating rod (305), and one end of the rotating rod (305) is fixedly connected to a rotating gear (3051) that meshes with the rack (302).

6. The irrigation water quality monitoring mobile water quality sampling device as described in claim 5, characterized in that: The other end of the rotating rod (305) is fixedly connected to a bevel tooth (3052). The outer circumferential side of the sampling cylinder (3) is rotatably fitted with a bevel tooth ring (306) located at the bottom of the sampler (2). Two wind blade scrapers (3061) are fixedly connected to the bevel tooth ring (306). The two wind blade scrapers (3061) are fitted together on the outer wall of the sampling cylinder (3). A limiting ring (3062) is fixedly connected to the top of the two wind blade scrapers (3061). The limiting ring (3062) is rotatably fitted at the bottom of the sampler (2).

7. The irrigation water quality monitoring mobile water quality sampling device as described in claim 6, characterized in that: Several sampling holes (307) are provided on the periphery of several sampling cylinders (3), and several sampling cylinders (3) are provided on the bottom of the sampler (2).

8. The irrigation water quality monitoring mobile water quality sampling device as described in claim 7, characterized in that: A sampling controller (203) is fixedly installed at the bottom of the sampler (2). The snorkeling mechanism (1) is equipped with a central controller (101) on top. The central controller (101) is equipped with a GPS positioning, signal receiving / transmitting module and a power control module. The snorkeling mechanism (1) and the central controller (101) are both connected to the power control module.

Images