Water body moving type water ecology multifunctional sampling, screening and washing device and method thereof

Abstract

The invention relates to the technical field of water ecology sampling devices, and discloses a water body moving type water ecology multifunctional sampling, screening and washing device and a method thereof.The water body moving type water ecology multifunctional sampling, screening and washing device comprises a water surface moving plate, a first double-shaft motor is fixed to the center of the top of the water surface moving plate, take-up wheels are arranged on the two sides of the first double-shaft motor correspondingly, and steel cables are connected to the two take-up wheels correspondingly; the other end of the steel cable penetrates through the water surface moving plate and is fixedly connected with the protective box body. The invention aims to clean sludge on the inner wall of the sampling barrel and the outer wall of the grabbing claw at the same time, further improve the sludge removal effect, realize automatic cleaning of a benthonic animal bottom mud sample and a submerged plant sample underwater, improve the treatment efficiency of the collected sample, and improve the sampling efficiency under water flow scouring, vibration and rotation of a cleaning brush head. The spiral flow is formed, impurities and sludge are shaken out from the protection frame body, the impurities can be blocked outside the protection frame body, a large number of foreign matters are prevented from being attached to the device in water, the sampling result is improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of water ecology sampling devices, and in particular to a water body mobile water ecology multifunctional sampling screening and washing device and a method thereof. Background Art

[0002] Sediments are where pollutants in lakes gather and can reflect the pollution status of water bodies. Monitoring and evaluating them is one of the important contents of water ecological environment health status assessment and ecological environment risk assessment. Benthic animals refer to aquatic animal groups that live at the bottom of water bodies for all or most of their life history. Their community structure is relatively stable, with a relatively complete identification and research system, and can serve as a response indicator for long-term environmental effects. They are considered to be an important biological group that can be used for water ecological health assessment and habitat characteristic biological monitoring. The traditional method of collecting sediments and benthic animals mainly uses Peterson mud samplers, which are heavy and inconvenient to carry and operate, increasing labor intensity and reducing work efficiency.

[0003] Submerged plants, that is, aquatic vegetation that grows at the bottom of water bodies and anchors the soil with roots and whose stems and leaves extend to the water surface or underwater, are regarded as key components of aquatic ecosystems. They can effectively increase spatial niches, improve environmental heterogeneity, provide shelter and spawning sites and food for some animals, provide attachment substrates for some organisms, purify water quality, and inhibit the occurrence of algal blooms. They are the basis for maintaining aquatic biodiversity and an important part of a healthy aquatic ecosystem. Submerged plant coverage and biomass are one of the important indicators for evaluating and assessing the health of aquatic ecosystems. At present, the main means of obtaining this indicator is to set sample points in the water body and then use underwater sickles and other tools to quantitatively collect submerged plants at the set sample points. There are cases where only the upper canopy of submerged plants is collected but not the entire submerged plant, which affects the assessment results of submerged plant biomass and further affects the conclusions of aquatic ecosystem health assessment.

[0004] The existing sediment, benthic animals and submerged plants collection equipment is relatively simple and primitive. The collection efficiency is slow and the function is single, making it difficult to ensure the quality of the samples after collection. During the collection, it is also impossible to perform preliminary screening and washing of benthic animals and submerged plants underwater, resulting in the need for repeated manual cleaning and gradual picking. When grabbing underwater, other debris will affect the device body, resulting in a large amount of foreign matter attached to the sampling equipment after long-term use, affecting subsequent sampling and manual cleaning efficiency. In addition, sediments, benthic animals and submerged plants are important indicators of the health status of the water ecological environment and ecological environmental risk assessment. Usually, the above three indicator samples need to be collected for water ecological environment monitoring and evaluation. How to use automatic sampling tools to achieve convenient, fast and synchronous sampling for different water bodies is a problem that needs to be solved urgently. Summary of the invention

[0005] In view of the deficiencies of the prior art in the above-mentioned background technology, the purpose of the present invention is to simultaneously clean the silt on the inner wall of the sampling barrel and the outer wall of the grabbing claw, thereby further improving the silt removal effect, improving the quality of the collected samples, realizing the automatic cleaning and collection of benthic animal mud samples and submerged vegetation samples underwater, realizing sediment collection, and improving the processing efficiency of the collected samples. Under the flushing, vibration and rotation of the cleaning brush head, a vortex is formed to shake out impurities and sludge from the protective frame, and vegetation or industrial waste with characteristics such as entanglement and softness can be blocked outside the protective frame, thereby avoiding the attachment of a large amount of foreign matter to the device in the water, thereby improving the results of subsequent sampling and the service life of the device.

[0006] In order to achieve the above object, the technical solution of the present invention is:

[0007] The present invention claims protection for a water body mobile water ecological multifunctional sampling, screening and washing device, including a water surface moving plate, a first double-axis motor is fixed at the top center of the water surface moving plate, both sides of the first double-axis motor are provided with wire take-up wheels, and steel cables are connected to the two wire take-up wheels, the other ends of the steel cables pass through the water surface moving plate and are fixedly connected to a protective box body, a mounting plate is fixed to the bottom of the protective box body, a first waterproof motor is arranged in the protective box body, an output shaft of the first waterproof motor passes through the mounting plate and is fixed to a screw, a guide rod is fixed to the bottom side of the mounting plate away from the screw, a mounting platform is arranged at the bottom of the mounting plate, side plates are fixed on both sides of the mounting platform in the horizontal direction, one of the side plates is threadedly connected to the screw, and the other side plate is slidably arranged with the guide rod, V-shaped plates are fixed on both sides of the mounting platform in the longitudinal direction, an L-shaped plate is fixed on one side of the top of the V-shaped plate, a grabbing component for grabbing bottom mud is arranged on one side of the V-shaped plate, and a transmission component is arranged on one side of the grabbing component.

[0008] As a further solution of the present invention, the grabbing assembly includes a second waterproof motor fixed on one side of the L-shaped plate, a protective shell is provided on the outside of the second waterproof motor, a long plate is fixed at the bottom of the horizontal plate of the L-shaped plate, the output shaft of the second waterproof motor passes through the L-shaped plate and is fixed to the first rotating shaft, the first rotating shaft is rotatably connected to one side of the long plate, a left sliding frame and a driving gear are fixed on the first rotating shaft in sequence, a second rotating shaft is rotatably arranged on the long plate, a right sliding frame and a driven gear are fixed on the second rotating shaft in sequence, the driving gear and the driven gear are meshed, a U-shaped frame is fixed on one side of the V-shaped plate, a sliding groove compatible with the left sliding frame and the right sliding frame is opened in the U-shaped frame, the other ends of the left sliding frame and the right sliding frame are slidably arranged in the sliding groove, and grabbing claws are fixed on the other ends of the left sliding frame and the right sliding frame.

[0009] As a further scheme of the present invention, a sampling barrel is provided on the other side of the V-shaped plate, a central axis is provided at the center of the sampling barrel, a second dual-axis motor is provided on one side of the V-shaped plate, an output shaft at one end of the second dual-axis motor is fixed to the central axis, four partitions are extended and fixed around the central axis, the four partitions divide the interior of the sampling barrel into four sampling spaces, an arc plate is fixed at the other end of the partition, a sampling opening is provided at the bottom of the sampling barrel, and fine through holes, coarse through holes and drainage holes are sequentially provided on the outer surface of the sampling barrel, and the fine through holes, coarse through holes and drainage holes are all arranged corresponding to the sampling spaces.

[0010] As a further solution of the present invention, the transmission assembly includes a fixed frame symmetrically arranged on both sides of the U-shaped frame, and the fixed frame is rotatably provided with a third rotating shaft and a fourth rotating shaft from top to bottom in sequence. A first belt is sleeved on the output shaft at the other end of the second dual-axis motor, and the other end of the first belt is sleeved on the third rotating shaft. The third rotating shaft is also sleeved with a second belt, and the other end of the second belt is sleeved on the fourth rotating shaft. A cam is also fixedly provided on the fourth rotating shaft, and a first rotating rod is provided on the cam.

[0011] As a further solution of the present invention, a mounting frame is slidably provided on one side of the fixed frame, a rotating disk is provided on the mounting frame, a second rotating rod is rotatably provided on one side of the mounting frame, the second rotating rod is coaxially arranged with the rotating disk, a support rod is fixedly installed on the second rotating rod, a semicircular protrusion is fixed on the side of the support rod away from the second rotating rod, a third rotating rod is fixed on the support rod, and an arc-shaped buffer plate is fixed on the mounting frame, and the semicircular protrusion is located inside the arc-shaped buffer plate.

[0012] As a further solution of the present invention, a connecting rod is provided between the first rotating rod and the third rotating rod, and two ends of the connecting rod are rotatably connected to the first rotating rod and the third rotating rod respectively.

[0013] As a further solution of the present invention, a first telescopic rod is provided at the bottom of the fixing frame, a protective frame is fixed to the outer wall of the mounting frame, the other end of the first telescopic rod is fixedly connected to the protective frame, and a buffer spring is sleeved on the first telescopic rod.

[0014] As a further solution of the present invention, a cleaning brush head is rotatably provided on one side of the fixing frame, the fourth rotating shaft is coaxial with the cleaning brush head, and the cleaning brush head is located in the protective frame.

[0015] As a further solution of the present invention, two extension frames are fixed to one side of the protection frame, and a second telescopic rod is disposed on each of the two extension frames, and the other end of the second telescopic rod is fixedly connected to the side plate.

[0016] The present invention also claims a method for using a mobile water ecological multifunctional sampling, screening and washing device, comprising the following steps:

[0017] S1. First, the staff places the surface mobile board to the position where sampling is required on the lake surface, starts the first dual-axis motor to drive the take-up wheel to rotate and lower the steel cable, so that the installation board slowly sinks into the lake. When the installation board reaches the appropriate position, the first waterproof motor is started to drive the screw to rotate and the installation platform is lowered;

[0018] S2. When preparing to grab the lake bottom mud, start the second waterproof motor to drive the first rotating shaft to drive the driving gear to rotate, and the driving gear drives the driven gear to rotate, so that the left sliding frame and the right sliding frame are opened synchronously, and then the grabbing claw is opened, and the sampling opening opened at the bottom of the sampling barrel is close to the mud. The second waterproof motor is reversed, so that the left sliding frame and the right sliding frame are closed synchronously, and then the grabbing claw is closed, and the mud is grabbed into the sampling opening;

[0019] S3, restart the second dual-axis motor to drive the central axis to rotate, switch to the new sampling space to the sampling opening, stop the output shaft on this side through the second dual-axis motor, and then drive the output shaft on the other side through the second dual-axis motor to drive the first belt to move, the first belt drives the third rotating shaft to move, the third rotating shaft drives the second belt to move, and the second belt drives the fourth rotating shaft to move. At this time, the cleaning brush head will move synchronously to clean the bottom mud on the side of the sampling barrel, and the cam fixed on the fourth rotating shaft will move, and then the connecting rod on the first rotating rod will move, and the connecting rod will drive the third rotating rod to move, and the third rotating rod will drive the support rod to perform a circular swinging motion in the arc buffer plate. During the movement, it will impact the arc buffer plate, driving the mounting frame and the protection frame to vibrate, and under the flushing of water flow and the rotation of the cleaning brush head, a vortex is formed to shake out impurities and sludge from the protection frame;

[0020] S4. When sampling is completed in one place, the water surface moving plate can be moved to a different area for re-sampling. When sampling again, after repeating the steps of S2, when the left sliding frame and the right sliding frame are opened synchronously to drive the grabbing claw to open, the grabbing claw will contact the cleaning brush head. At this time, the bottom mud attached to the outer wall of the grabbing claw will be removed by the cleaning brush head.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) When grabbing, start the second waterproof motor to drive the first rotating shaft to drive the driving gear to rotate, the driving gear drives the driven gear to rotate, and the driven gear drives the second rotating shaft to rotate, so that the left sliding frame and the right sliding frame can be opened or closed synchronously, and then the grab claw is opened or closed. The setting of the internal slide groove of the U-shaped frame effectively limits the left sliding frame and the right sliding frame to slide only therein, avoiding the grab claw to open too much and grab too much bottom mud, affecting the results of subsequent bottom mud sampling and screening, and when the second and subsequent sampling is carried out, when the left sliding frame and the right sliding frame open the grab claw, the grab claw will slowly pass through the cleaning brush head, at this time, the silt or debris on the outer wall of the grab claw will be cleaned out, the setting of the arc plate, the arc plate is close to the inner wall of the sampling barrel, when the central axis rotates, the bottom mud remaining on the inner wall of the sampling barrel can be scraped off, avoiding affecting the results of subsequent sampling, and the silt on the inner wall of the sampling barrel and the outer wall of the grab claw is cleaned at the same time, further improving the silt removal effect, improving the quality of the collected samples, and improving the processing efficiency of the collected samples.

[0023] (2) After the bottom mud is grabbed into the sampling bucket, the present invention starts the second dual-axis motor to drive the central shaft to rotate, switch to the new sampling space to the sampling opening, stop the output shaft on this side through the second dual-axis motor, and then drive the output shaft on the other side through the second dual-axis motor to drive the first belt to move, the first belt drives the third rotating shaft to move, the third rotating shaft drives the second belt to move, and the second belt drives the fourth rotating shaft to move. At this time, the cleaning brush head will move synchronously to clean the bottom mud on the side of the sampling bucket, the cam fixed on the fourth rotating shaft moves, and then the connecting rod on the first rotating rod moves, the connecting rod drives the third rotating rod to move, and the third rotating rod The support rod is driven to perform circular swinging motion in the arc-shaped buffer plate. During the motion, the semicircular protrusion will impact the inside of the arc-shaped buffer plate, driving the mounting frame and the protective frame to vibrate. Under the flushing, vibration and rotation of the water flow, a vortex is formed, and impurities and sludge are shaken out of the protective frame and away from the device. The setting of the protective frame can prevent debris at the bottom of the lake from entering the cleaning brush head, and the debris, especially vegetation or industrial waste with characteristics such as entanglement and softness, will be blocked outside the protective frame, and the device is prevented from being attached to a large amount of foreign matter in the water. The presence of foreign matter will affect the results of subsequent sampling and the life of the device.

[0024] (3) When sampling is required, the staff will place the surface moving plate to the position on the lake where sampling is required, start the first dual-axis motor to drive the take-up wheel to rotate and lower the steel cable, so that the mounting plate slowly sinks into the lake. When the mounting plate reaches the appropriate position, start the first waterproof motor. The protective box protects the first waterproof motor to improve stability. The first waterproof motor drives the screw to rotate to lower the mounting platform. The setting of the guide rod improves the stability of the device during operation and avoids deviation and vibration during sediment sampling.

[0025] (4) The present invention can realize the collection of benthic animals, submerged plants and sediments with a single set of devices. Each sampling space corresponds to a different through hole, which enables the screening and washing of different samples, greatly improving the sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure inside the protection box of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the grabbing assembly of the present invention;

[0029] Figure 4 It is a partial structural schematic diagram of the grabbing component of the present invention;

[0030] Figure 5 It is a partial structural schematic diagram of the present invention;

[0031] Figure 6 It is a schematic diagram of the sampling barrel structure of the present invention;

[0032] Figure 7 It is a schematic diagram of the transmission assembly structure of the present invention;

[0033] Figure 8 It is a partial structural schematic diagram of the present invention;

[0034] Fig. 9 It is a schematic diagram of the enlarged structure of point A of the present invention;

[0035] Fig.10 It is a schematic diagram of the side view of the structure of the present invention.

[0036] In the figure: 101-surface moving plate; 102-reel; 103-steel cable; 104-first double-axis motor; 200-protective box; 201-mounting plate; 202-first waterproof motor; 203-screw; 204-guide rod; 205-mounting table; 206-side plate; 207-second telescopic rod; 208-V-shaped plate; 209-L-shaped plate; 210-long plate; 300-grabbing assembly; 301-sampling barrel; 302-protective shell; 303-drain hole; 304-central axis; 305-partition plate; 306-arc plate; 307-sampling opening; 308-second double-axis motor; 309-second waterproof motor; 310-first rotating shaft; 311-driving gear; 312-left sliding frame; 313- The second rotating shaft; 314-driven gear; 315-right sliding frame; 316-U-shaped frame; 317-slide groove; 318-grabbing claw; 319-fine through hole; 320-thick through hole; 400-transmission assembly; 401-fixed frame; 402-third rotating shaft; 403-first belt; 404-second belt; 405-fourth rotating shaft; 406-cam; 407-first rotating rod; 408-mounting frame; 409-second rotating rod; 410-rotating disk; 411-support rod; 412-semicircular protrusion; 413-arc buffer plate; 414-third rotating rod; 415-connecting rod; 416-protective frame; 417-first telescopic rod; 418-buffer spring; 500-cleaning brush head; 510-extension frame. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Please refer to the attached Figure 1-10 A water-body mobile water ecological multifunctional sampling, screening and washing device comprises a water surface moving plate 101, a first double-axis motor 104 is fixed at the top center of the water surface moving plate 101, both sides of the first double-axis motor 104 are provided with a wire reel 102, and the two wire reel 102 are connected with a steel cable 103, the other end of the steel cable 103 passes through the water surface moving plate 101 and is fixedly connected to a protective box 200, a mounting plate 201 is fixed at the bottom of the protective box 200, a first waterproof motor 202 is arranged in the protective box 200, and the output shaft of the first waterproof motor 202 passes through the mounting plate 201 and is connected to the screw 2 03 is fixed, a guide rod 204 is fixed on one side of the bottom of the mounting plate 201 away from the screw rod 203, a mounting platform 205 is arranged at the bottom of the mounting plate 201, side plates 206 are fixed on both sides of the mounting platform 205, one of the side plates 206 is threadedly connected to the screw rod 203, and the other side plate 206 is slidably arranged with the guide rod 204, V-shaped plates 208 are fixed on both sides of the mounting platform 205 in the longitudinal direction, an L-shaped plate 209 is fixed on one side of the top of the V-shaped plate 208, a grabbing assembly 300 for grabbing bottom mud is arranged on one side of the V-shaped plate 208, and a transmission assembly 400 is arranged on one side of the grabbing assembly 300.

[0041] When sampling is required, the staff places the surface moving plate 101 to the position on the lake surface where sampling is required, starts the first dual-axis motor 104 to drive the take-up wheel 102 to rotate and lower the steel cable 103, so that the mounting plate 201 slowly sinks into the lake. When the mounting plate 201 reaches the appropriate position, the first waterproof motor 202 is started, and the protective box 200 protects the first waterproof motor 202 to improve stability. The first waterproof motor 202 drives the screw 202 to rotate to lower the mounting platform 205. The setting of the guide rod 204 improves the stability of the device during operation and avoids deviation and vibration during sediment sampling.

[0042] The grab assembly 300 includes a second waterproof motor 309 fixed to one side of the L-shaped plate 209, a protective shell 302 is provided on the outside of the second waterproof motor 309, a long plate 210 is fixed to the bottom of the horizontal plate of the L-shaped plate 209, an output shaft of the second waterproof motor 309 passes through the L-shaped plate 209 and is fixed to a first rotating shaft 310, the first rotating shaft 310 is rotatably connected to one side of the long plate 210, a left sliding frame 312 and a driving gear 311 are fixed to the first rotating shaft 310 in sequence, and a second rotating shaft is rotatably provided on the long plate 210. 313, a right sliding frame 315 and a driven gear 314 are fixed on the second rotating shaft 313 in sequence, the driving gear 311 and the driven gear 314 are meshed, a U-shaped frame 316 is fixed on one side of the V-shaped plate 208, and a slide groove 317 adapted to the left sliding frame 312 and the right sliding frame 315 is opened in the U-shaped frame 316, the other ends of the left sliding frame 312 and the right sliding frame 315 are slidably set in the slide groove 317, and the other ends of the left sliding frame 312 and the right sliding frame 315 are fixed with a grab claw 318.

[0043] Specifically, when in use, the second waterproof motor 309 is started to drive the first rotating shaft 310 to drive the driving gear 311 to rotate, the driving gear 311 drives the driven gear 314 to rotate, and the driven gear 314 drives the second rotating shaft 313 to rotate, so that the left sliding frame 312 and the right sliding frame 315 can be opened or closed synchronously, thereby opening or closing the grabbing claw 318, and the setting of the internal slide groove 317 of the U-shaped frame 316 effectively limits the left sliding frame 312 and the right sliding frame 315 to slide only therein, avoiding the grabbing claw 318 from opening too much and grabbing too much sediment, affecting the results of subsequent sediment sampling and screening.

[0044] A sampling barrel 301 is arranged on the other side of the V-shaped plate 208, and a central axis 304 is arranged at the center of the sampling barrel 301. A second dual-axis motor 308 is arranged on one side of the V-shaped plate 208, and a waterproof cover is arranged outside the second dual-axis motor 308. The output shaft at one end of the second dual-axis motor 308 is fixed to the central axis 304, and four partitions 305 are extended and fixed around the central axis 304. The four partitions 305 divide the interior of the sampling barrel 301 into four sampling spaces. An arc plate 306 is fixed to the other end of the partition 305. A sampling opening 307 is opened at the bottom of the sampling barrel 301, and fine through holes 319, coarse through holes 320 and drainage holes 303 are opened in sequence on the outer surface of the sampling barrel 301, and the fine through holes 319, coarse through holes 320 and drainage holes 303 are all arranged corresponding to the sampling spaces.

[0045] Specifically, the arrangement of the four partitions 305 in the sampling barrel 301 divides the interior of the sampling barrel 301 into four sampling spaces, which can realize multiple sampling in the lake without the cumbersome operation of going ashore to pour out the bottom mud and then going back into the water after grabbing once like the existing grabbing equipment. In addition, the arrangement of the arc plate 306 makes the arc plate 306 close to the inner wall of the sampling barrel 301. When the central axis 304 rotates, the bottom mud remaining on the inner wall of the sampling barrel can be scraped off to avoid affecting the results of subsequent sampling. During sampling, benthic, submerged plant and sediment samples are collected in turn after the central axis 304 rotates. The fine through holes 319, coarse through holes 320 and drainage holes 303 corresponding to the three sampling spaces correspond to the sampling spaces for benthic animal samples, submerged plant samples and sediments, respectively. The benthic animal sample sampling space corresponds to the fine through hole 319. The setting of the fine through hole 319 facilitates the screening and washing of the benthic animal samples in this space for a relatively long time. The submerged plant sample collection space corresponds to the coarse through hole 320. Since the coarse through hole 320 is relatively large, a simple flushing of this space is sufficient. The sediment sampling space corresponds to the drainage hole 303. The collected bottom mud becomes a sediment sample after a simple drainage through the drainage hole 303.

[0046] The transmission assembly 400 includes a fixed frame 401 symmetrically arranged on both sides of the U-shaped frame 316, and the fixed frame 401 is rotatably arranged with a third rotating shaft 402 and a fourth rotating shaft 405 from top to bottom. The output shaft at the other end of the second dual-axis motor 308 is sleeved with a first belt 403, and the other end of the first belt 403 is sleeved on the third rotating shaft 402. The third rotating shaft 402 is also sleeved with a second belt 404, and the other end of the second belt 404 is sleeved on the fourth rotating shaft 405. A cam 406 is also fixedly arranged on the fourth rotating shaft 405, and a first rotating rod 407 is arranged on the cam 406.

[0047] A mounting frame 408 is slidingly arranged on one side of the fixed frame 401, a rotating disk 410 is arranged on the mounting frame 408, a second rotating rod 409 is rotatably arranged on one side of the mounting frame 408, the second rotating rod 409 is coaxially arranged with the rotating disk 410, a support rod 411 is fixedly installed on the second rotating rod 409, a semicircular protrusion 412 is fixed on the side of the support rod 411 away from the second rotating rod 409, a third rotating rod 414 is fixed on the support rod 411, an arc-shaped buffer plate 413 is fixed on the mounting frame 408, and the semicircular protrusion 412 is located in the arc-shaped buffer plate 413.

[0048] A connecting rod 415 is disposed between the first rotating rod 407 and the third rotating rod 414 , and two ends of the connecting rod 415 are rotatably connected to the first rotating rod 407 and the third rotating rod 414 , respectively.

[0049] It should be noted that after the bottom mud is grabbed into the sampling barrel 301, the second dual-axis motor 308 is started to drive the central shaft 304 to rotate, switch to the new sampling space to the sampling opening 307, stop the output shaft on this side through the second dual-axis motor 308, and then drive the output shaft on the other side through the second dual-axis motor 308 to drive the first belt 403 to move, the first belt 403 drives the third rotating shaft 402 to move, the third rotating shaft 402 drives the second belt 404 to move, and the second belt 404 drives the fourth rotating shaft 405 to move. At this time, the cleaning brush head 500 will move synchronously to clean the bottom mud on the side of the sampling barrel 301, and the cam 406 fixed on the fourth rotating shaft 405 moves, and then the connecting rod 415 on the first rotating rod 407 moves, and the connecting rod 415 drives the third rotating shaft 402 to move. The rotating rod 414 moves, and the third rotating rod 414 drives the supporting rod 411 to perform a circular swinging motion in the arc buffer plate 413. During the movement, the semicircular protrusion 412 will impact the arc buffer plate 413, driving the mounting frame 408 and the protective frame 416 to vibrate. Under the flushing, vibration and rotation of the water flow and the cleaning brush head 500, a vortex is formed, and impurities and sludge are shaken out of the protective frame 416 and away from the device. The setting of the protective frame 436 can prevent the debris at the bottom of the lake from entering the cleaning brush head 500, and the vegetation or industrial waste with the characteristics of winding and softness, especially, will be blocked outside the protective frame 416, and avoid the device from being attached to a large amount of foreign matter in the water. The presence of foreign matter will affect the results of subsequent sampling and the life of the device;

[0050] And while the cleaning brush head 500 is rotating, when the second sampling is carried out, when the left sliding frame 312 and the right sliding frame 315 open the grabbing claw 318, the grabbing claw 318 will slowly pass through the cleaning brush head 500, and at this time, the silt or debris on the outer wall of the grabbing claw 318 will be cleaned out, further improving the silt removal effect.

[0051] After completing the bottom sediment sampling, the second dual-axis motor 308 is started again to start the output end near the central axis 304. Since the sampling barrel 301 is provided with multiple through holes 301 on the surface, the mud and sand in the sample will be discharged through the through holes 301, and the continuous rotation of the central axis 304 drives the partition 305 to rotate continuously, thereby realizing automatic cleaning and collection of benthic animal bottom sediment and submerged plant samples underwater, saving manpower and water resources, and obtaining relatively clean benthic animal bottom sediment samples and submerged plant samples, as well as sediment samples. After the device is pulled out of the lake, it is no longer necessary to spend a lot of time cleaning the samples.

[0052] A first telescopic rod 417 is disposed at the bottom of the fixing frame 401 , a protective frame 416 is fixed to the outer wall of the mounting frame 408 , the other end of the first telescopic rod 417 is fixedly connected to the protective frame 416 , and a buffer spring 418 is sleeved on the first telescopic rod 417 .

[0053] It should be noted that when the protection frame 416 is vibrated, the first telescopic rod 417 and the buffer spring 418 provide a buffer for the protection frame and the mounting bracket 408 .

[0054] A cleaning brush head 500 is rotatably disposed on one side of the fixing frame 401 . The fourth rotating shaft 405 is coaxial with the cleaning brush head 500 . The cleaning brush head 500 is located in the protective frame 416 .

[0055] Two extension frames 510 are fixed to one side of the protection frame 416 . The two extension frames 510 are both provided with a second telescopic rod 207 . The other end of the second telescopic rod 207 is fixedly connected to the side plate 206 .

[0056] Specifically, the second telescopic rod 207 provides a buffer for the extension frame 510 , and further provides a buffer effect for the protection frame 416 , which will not be described in detail herein.

[0057] A method for using a mobile water ecological multifunctional sampling, screening and washing device for a water body, comprising the following steps:

[0058] S1. First, the staff places the surface mobile board 101 at the position where sampling is required on the lake surface, starts the first dual-axis motor 104 to drive the take-up wheel 102 to rotate and lower the steel cable 103, so that the installation board 201 slowly sinks into the lake. When the installation board 201 reaches the appropriate position, the first waterproof motor 202 is started to drive the screw 203 to rotate and the installation platform 205 is lowered;

[0059] S2. When preparing to grab the lake bottom mud, start the second waterproof motor 309, drive the first rotating shaft 310 to drive the driving gear 311 to rotate, and the driving gear 311 drives the driven gear 314 to rotate, so that the left sliding frame 312 and the right sliding frame 315 are opened synchronously, and then the grabbing claw 318 is opened, and the sampling opening 307 opened at the bottom of the sampling barrel 301 is close to the mud. The second waterproof motor 309 is reversed, so that the left sliding frame 312 and the right sliding frame 315 are closed synchronously, and then the grabbing claw 318 is closed, and the mud is grabbed into the sampling opening 307;

[0060] S3, restart the second dual-axis motor 308 to drive the central shaft 304 to rotate, switch to the new sampling space to the sampling opening 307, stop the output shaft on this side through the second dual-axis motor 308, and then drive the output shaft on the other side through the second dual-axis motor 308 to drive the first belt 403 to move, the first belt 403 drives the third rotating shaft 402 to move, the third rotating shaft 402 drives the second belt 404 to move, and the second belt 404 drives the fourth rotating shaft 405 to move. At this time, the cleaning brush head 500 will move synchronously to clean the bottom of the side of the sampling barrel 301 The cam 406 fixed on the fourth rotating shaft 405 moves, and then the connecting rod 415 on the first rotating rod 407 moves, and the connecting rod 415 drives the third rotating rod 414 to move, and the third rotating rod 414 drives the supporting rod 411 to perform a circular swinging motion in the arc buffer plate 413, and during the movement, it will impact the arc buffer plate 413, driving the mounting frame 408 and the protective frame 416 to vibrate, and under the flushing of water flow and the rotation of the cleaning brush head 500, a vortex is formed to shake out impurities and sludge from the protective frame 416;

[0061] S4. When sampling is completed in one area, the water surface moving plate 101 can be moved to a different area for re-sampling. When sampling again, after repeating the step of S2, when the left sliding frame 312 and the right sliding frame 315 are opened synchronously to drive the grabbing claw 318 to open, the grabbing claw 318 will contact the cleaning brush head 500. At this time, the bottom mud attached to the outer wall of the grabbing claw 318 will be removed by the cleaning brush head 500.

[0062] Finally, it should be noted that the dual-axis motor, waterproof motor and other components involved in the present invention are all universal standard parts or components known to technical personnel in this field, and are all powered by an external power supply. Their structures and principles are known to technical personnel in this field through technical manuals or through conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and compatible controllers and power supplies, are connected through wires. The specific connection means should refer to the working principle of the present invention. The electrical connection between each electrical component is completed in a sequential working order, and the detailed connection means are all well-known technologies in the field.

[0063] 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 water-body mobile water ecological multifunctional sampling, screening and washing device, comprising a water surface moving plate (101), characterized in that: A first double-axis motor (104) is fixed at the top center of the water surface moving plate (101), and a take-up wheel (102) is arranged on both sides of the first double-axis motor (104). Steel cables (103) are connected to the two take-up wheels (102), and the other ends of the steel cables (103) pass through the water surface moving plate (101) and are fixedly connected to the protection box (200). A mounting plate (201) is fixed at the bottom of the protection box (200), and a first waterproof motor (202) is arranged in the protection box (200). The output shaft of the first waterproof motor (202) passes through the mounting plate (201) and is fixed to the screw rod (203). The bottom of the mounting plate (201) is away from the A guide rod (204) is fixed on one side of the screw rod (203); a mounting platform (205) is arranged at the bottom of the mounting plate (201); side plates (206) are fixed on both sides of the mounting platform (205) in the transverse direction, one of the side plates (206) is threadedly connected to the screw rod (203), and the other side plate (206) is slidably arranged with the guide rod (204); V-shaped plates (208) are fixed on both sides of the mounting platform (205) in the longitudinal direction, an L-shaped plate (209) is fixed on one side of the top of the V-shaped plate (208); a grabbing assembly (300) for grabbing bottom mud is arranged on one side of the V-shaped plate (208), and a transmission assembly (400) is arranged on one side of the grabbing assembly (300).

2. According to claim 1, a water body mobile water ecological multifunctional sampling, screening and washing device is characterized in that: The grab assembly (300) includes a second waterproof motor (309) fixed to one side of the L-shaped plate (209), a protective shell (302) is provided on the outside of the second waterproof motor (309), a long plate (210) is fixed to the bottom of the horizontal plate of the L-shaped plate (209), an output shaft of the second waterproof motor (309) passes through the L-shaped plate (209) and is fixed to a first rotating shaft (310), the first rotating shaft (310) is rotatably connected to one side of the long plate (210), a left sliding frame (312) and a driving gear (311) are fixed to the first rotating shaft (310) in sequence, and a second rotating shaft (310) is rotatably provided on the long plate (210). 13), a right sliding frame (315) and a driven gear (314) are fixed on the second rotating shaft (313) in sequence, the driving gear (311) and the driven gear (314) are meshed, a U-shaped frame (316) is fixed on one side of the V-shaped plate (208), a slide groove (317) adapted to the left sliding frame (312) and the right sliding frame (315) is provided in the U-shaped frame (316), the other ends of the left sliding frame (312) and the right sliding frame (315) are slidably arranged in the slide groove (317), and the other ends of the left sliding frame (312) and the right sliding frame (315) are fixed with a grab claw (318).

3. The mobile water ecological multifunctional sampling, screening and washing device according to claim 2 is characterized in that: A sampling barrel (301) is arranged on the other side of the V-shaped plate (208), a central axis (304) is arranged at the center of the sampling barrel (301), a second dual-axis motor (308) is arranged on one side of the V-shaped plate (208), an output shaft at one end of the second dual-axis motor (308) is fixed to the central axis (304), four partitions (305) are extended and fixed around the central axis (304), the four partitions (305) divide the interior of the sampling barrel (301) into four sampling spaces, an arc plate (306) is fixed to the other end of the partition (305), a sampling opening (307) is provided at the bottom of the sampling barrel (301), and a fine through hole (319), a coarse through hole (320) and a water leakage hole (303) are sequentially provided on the outer surface of the sampling barrel (301), and the fine through hole (319), the coarse through hole (320) and the water leakage hole (303) are all arranged corresponding to the sampling spaces.

4. The mobile water ecological multifunctional sampling, screening and washing device according to claim 3 is characterized in that: The transmission assembly (400) comprises a fixed frame (401) symmetrically arranged on both sides of the U-shaped frame (316); the fixed frame (401) is rotatably provided with a third rotating shaft (402) and a fourth rotating shaft (405) from top to bottom; a first belt (403) is sleeved on the output shaft at the other end of the second dual-axis motor (308); the other end of the first belt (403) is sleeved on the third rotating shaft (402); the third rotating shaft (402) is also sleeved with a second belt (404); the other end of the second belt (404) is sleeved on the fourth rotating shaft (405); a cam (406) is fixedly provided on the fourth rotating shaft (405); and a first rotating rod (407) is provided on the cam (406).

5. The mobile water ecological multifunctional sampling, screening and washing device according to claim 4 is characterized in that: A mounting frame (408) is slidably arranged on one side of the fixing frame (401), a rotating disk (410) is arranged on the mounting frame (408), a second rotating rod (409) is rotatably arranged on one side of the mounting frame (408), the second rotating rod (409) is coaxially arranged with the rotating disk (410), a supporting rod (411) is fixedly arranged on the second rotating rod (409), a semicircular protrusion (412) is fixed on the side of the supporting rod (411) away from the second rotating rod (409), a third rotating rod (414) is fixed on the supporting rod (411), an arc-shaped buffer plate (413) is fixed on the mounting frame (408), and the semicircular protrusion (412) is located inside the arc-shaped buffer plate (413).

6. The mobile water ecological multifunctional sampling, screening and washing device according to claim 5 is characterized in that: A connecting rod (415) is provided between the first rotating rod (407) and the third rotating rod (414), and two ends of the connecting rod (415) are rotatably connected to the first rotating rod (407) and the third rotating rod (414) respectively.

7. The mobile water ecological multifunctional sampling, screening and washing device according to claim 5 is characterized in that: A first telescopic rod (417) is arranged at the bottom of the fixing frame (401), a protective frame (416) is fixed to the outer wall of the mounting frame (408), the other end of the first telescopic rod (417) is fixedly connected to the protective frame (416), and a buffer spring (418) is sleeved on the first telescopic rod (417).

8. The mobile water ecological multifunctional sampling, screening and washing device according to claim 7 is characterized in that: A cleaning brush head (500) is rotatably disposed on one side of the fixing frame (401), the fourth rotating shaft (405) is coaxial with the cleaning brush head (500), and the cleaning brush head (500) is located in the protective frame (416).

9. The mobile water ecological multifunctional sampling, screening and washing device according to claim 8 is characterized in that: Two extension frames (510) are fixed to one side of the protection frame (416), and a second telescopic rod (207) is arranged on each of the two extension frames (510), and the other end of the second telescopic rod (207) is fixedly connected to the side plate (206).

10. The method for using the mobile water ecological multifunctional sampling, screening and washing device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. First, the staff places the surface moving plate (101) at the position on the lake surface where sampling is required, starts the first dual-axis motor ((104)) to drive the take-up wheel (102) to rotate and lower the steel cable (103), so that the installation plate (201) slowly sinks into the lake. When the installation plate (201) reaches the appropriate position, the first waterproof motor (202) is started to drive the screw (203) to rotate and the installation platform (205) is lowered; S2. When preparing to grab the lake bottom mud, start the second waterproof motor (309), drive the first rotating shaft (310) to drive the driving gear (311) to rotate, and the driving gear (311) drives the driven gear (314) to rotate, so that the left sliding frame (312) and the right sliding frame (315) are opened synchronously, and then the grabbing claw (318) is opened, and the sampling opening (307) opened at the bottom of the sampling barrel (301) is close to the mud. The second waterproof motor (309) is reversed, so that the left sliding frame (312) and the right sliding frame (315) are closed synchronously, and then the grabbing claw (318) is closed, and the mud is grabbed into the sampling opening (307); S3, restart the second dual-axis motor (308) to drive the central shaft (304) to rotate, switch to the new sampling space to the sampling opening (307), stop the output shaft on this side through the second dual-axis motor (308), and then drive the output shaft on the other side through the second dual-axis motor (308) to drive the first belt (403) to move, the first belt (403) drives the third rotating shaft (402) to move, the third rotating shaft (402) drives the second belt (404) to move, and the second belt (404) drives the fourth rotating shaft (405) to move. At this time, the cleaning brush head (500) will move synchronously to clean the bottom of the side of the sampling barrel (301). The cam (406) fixedly arranged on the fourth rotating shaft (405) moves, and then the connecting rod (415) on the first rotating rod (407) moves, and the connecting rod (415) drives the third rotating rod (414) to move, and the third rotating rod (414) drives the supporting rod (411) to perform a circular swinging motion in the arc-shaped buffer plate (413), and during the movement, it will impact the inside of the arc-shaped buffer plate (413), driving the mounting frame (408) and the protective frame (416) to vibrate, and under the flushing of the water flow and the rotation of the cleaning brush head (500), a vortex is formed, and impurities and sludge are shaken out of the protective frame (416); S4. When sampling is completed at one place, the water surface moving plate (101) is moved to a different area for re-sampling. When sampling is repeated again, the step S2 is repeated. When the left sliding frame (312) and the right sliding frame (315) are opened synchronously to drive the grabbing claw (318) to open, the grabbing claw (318) will contact the cleaning brush head (500). At this time, the bottom mud attached to the outer wall of the grabbing claw (318) is removed by the cleaning brush head (500).

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