A water body multi-point sampling device for environmental detection

Abstract

The present invention discloses a multi-point water sampling device for environmental detection, which relates to the technical field of environmental detection, and comprises a movable floating plate, a cover frame is installed on the top of the movable floating plate, a baffle is installed on the bottom of the movable frame head at a relative position of the sampling tube, and a movable sampling mechanism, wherein the movable sampling mechanism comprises a movable frame head, a sampling tube and a micro detector, and a movable frame head is movably installed on the bottom of the movable floating plate. The present invention starts a transmission suction mechanism, a mobile sampling mechanism and a suction auxiliary mechanism, and when multi-point collection and sampling are performed through the suction auxiliary mechanism, the sampling efficiency is increased through a double negative pressure state, and the sealing during extraction is ensured to avoid insufficient sealing to reduce the collection efficiency, and the liquid water during sampling can be further filtered out to avoid the collected water body still containing debris, which not only causes blockage but also affects the accuracy of later detection.

Description

Technical Field

[0001] The invention relates to the technical field of environmental detection, in particular to a water body multi-point sampling device for environmental detection. Background Art

[0002] At present, in the process of environmental testing, the management of water environment is a very important step, among which the sampling of water bodies is a very important step. However, in the process of water sampling and testing, the underwater staff continue to operate the sampling without knowing the situation. It is not only easy to affect the normal collection and sampling, but also because of the unsuccessful sampling, it will cause errors in the later detection. Moreover, the adsorption force of the existing collection and sampling end is fixed. If an abnormal situation occurs, the normal collection cannot be guaranteed, which reduces the stability of the collection and detection. Summary of the invention

[0003] The object of the present invention is to provide a water multi-point sampling device for environmental detection to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a water multi-point sampling device for environmental detection, comprising a movable floating plate, a cover frame is installed on the top of the movable floating plate, and a baffle is installed on the bottom of the movable frame head at a position opposite to the sampling tube;

[0005] A mobile sampling mechanism, the mobile sampling mechanism comprises a movable frame head, a sampling tube and a micro detector, the movable frame head is movably mounted at the bottom end of the movable floating plate, a number of sampling tubes are equidistantly mounted around the inner cavity of the movable frame head, micro detectors are mounted on both sides of the top end of the inner cavity of the movable frame head, and a number of detection lines are mounted on the detection end of the micro detector;

[0006] The transmission suction mechanism comprises a single-phase motor, a turbofan head and a mounting frame, wherein the mounting frame is mounted on the top of the inner cavity of the movable frame head, the top of the inner cavity of the mounting frame is equipped with a single-phase motor, and the bottom of the inner cavity of the mounting frame is equipped with a turbofan head;

[0007] A suction auxiliary mechanism, the suction auxiliary mechanism comprises a circular net cylinder, a suction circular opening is opened at the bottom of the movable frame head, and the circular net cylinder is movably installed inside the suction circular opening;

[0008] A sampling auxiliary mechanism, the sampling auxiliary mechanism comprises a movable filter plate, and the movable filter plate is movably mounted at the bottom end of the movable frame head;

[0009] A moving mechanism, the moving mechanism comprising a propeller and a movable through slot, movable through slots are provided in the middle of both sides of the movable floating plate, and propellers are provided inside the movable through slots;

[0010] A lowering mechanism, the lowering mechanism comprising a mounting shaft frame and a retracting roller, the mounting shaft frames are mounted on both sides of the middle of the top end of the movable floating plate, and the retracting roller is mounted between the top ends of the mounting shaft frames on both sides through bearings;

[0011] The distance measuring mechanism comprises a movable hole, a movable hole is opened in the middle of the movable floating plate, and movable floating blocks are installed around the outside of the movable floating plate.

[0012] Preferably, the mobile sampling mechanism also includes a one-way valve tube, a float, a liquid level sensor and a suction one-way valve. A one-way valve tube is installed on the top of the sampling tube, and the end of the one-way valve tube away from the sampling tube is connected to the bottom of the mounting frame. A float is movably provided at the bottom of the inner cavity of the sampling tube, and two liquid level sensors are installed on one side of the inner cavity of the sampling tube. A suction one-way valve is installed at the bottom of the sampling tube, and a detection line passes through the top of the sampling tube and is connected to one side of the top of the float. A detection end is installed at the top of the float, and connecting ports are provided at the top and bottom of the sampling tube. A control panel is installed on the rear side of the inner cavity of the cover frame, the liquid level sensor and the micro detector are electrically connected to the control panel, and the control panel is wirelessly connected to an external control center.

[0013] Preferably, the transmission suction mechanism also includes a rotating rod, a sealing frame, a rotating block, a limiting ring sleeve, a circular block, a connecting magnetic block, a scraper, a movable top rod, an extrusion spring and an extrusion notch. The bottom end of the inner cavity of the movable frame head is equipped with a sealing frame, the bottom end of the single-phase motor is equipped with a rotating rod, the upper end of the rotating rod is connected to the middle of the turbofan head, a rotating hole is opened in the middle of the bottom end of the installation frame, the top end of the sealing frame and the top end of the inner cavity are both equipped with limiting ring sleeves, the top end of the limiting ring sleeve is movably equipped with a rotating block, and the bottom end of the limiting ring sleeve inner cavity is movably equipped with a circular block. The bottom end of the rotating rod is connected to the top end of the rotating block, and connecting magnetic blocks are installed at the bottom end of the rotating block and the top end of the circular block. A number of round beads are installed around the outside of the rotating block and the circular block. A scraper is movably installed in the middle of the upper end of the inner cavity of the sealing frame, and extrusion grooves are provided on both sides of the top end of the inner cavity of the sealing frame. A moving push rod is slidably installed at the bottom end of the inner cavity of the extrusion groove, and the bottom end of the moving push rod is connected to the top end of the scraper, and an extrusion spring is installed at the top end of the moving push rod. Both ends of the scraper are arc-shaped structures, and the single-phase motor is electrically connected to the control panel.

[0014] Preferably, the suction auxiliary mechanism also includes fan blades, a rotating rod, a mounting spring, a movable rod, a mounting slot, a small electric telescopic rod, a fixed ring, a mounting rotating block, a movable slider, a mounting rotating slot, a pull rope, an arc-shaped slide slot, a touch switch and a reset spring. The rotating rod is installed at the bottom end of the circular block, and a mounting slot is provided at the top of the rotating rod. A small electric telescopic rod is installed in the inner cavity of the mounting slot, and the small electric telescopic rod is electromagnetically connected to the control panel. A connecting ring is installed at the bottom end of the small electric telescopic rod, and a movable rod is installed at the bottom end of the rotating rod. A circular opening is provided at the top of the circular net cylinder, and a ring plate is installed at the bottom end of the movable rod through the circular opening. A mounting spring is installed at the bottom end of the rotating rod, and a rubber sealing ring is installed at the bottom around the outside of the rotating rod, and the bottom end of the rubber sealing ring is connected to the top of the circular net cylinder. A fixing ring is installed on the outside of the rotating rod, and A plurality of fan blades, each of which is provided with an annular sheet at one end close to the fixed ring, and installation rotation grooves are provided around the outside of the fixed ring at relative positions of the fan blades, a mounting rotation block is movably installed inside the mounting rotation groove, and one end of the mounting rotation block is connected to the fan blade away from the mounting rotation groove, and an arc-shaped slide groove is provided on one side of the inner cavity of the mounting rotation groove, a movable slider is installed on the top of the mounting rotation block, and the movable slider is slidably connected to the top of the inner cavity of the arc-shaped slide groove, a return spring is installed inside the arc-shaped slide groove, one end of the return spring is connected to one side of the movable slider, and a pull rope is installed on the side of the movable slider close to the return spring, and the pull rope passes through the fixed ring and one end of the rotating rod and is connected to the outside of the connecting ring, and three touch switches are equidistantly installed on one side of the inner cavity of the arc-shaped slide groove, the touch switch is electromagnetically connected to the control panel, and a plurality of warning lights are installed on the outside of the control panel corresponding to the touch switches.

[0015] Preferably, the cross-sections of the mounting rotating block and the mounting rotating groove are convex structures, a spherical ball is installed on the side of the movable slider away from the mounting rotating block, a plurality of circular holes are opened equidistantly around the outside of the circular mesh cylinder, mounting ring strips are installed around the outside of the fixing ring and the annular sheet, sealing strips are installed around the inner cavity of the mounting ring strip, the sealing strips are made of rubber material, and the sealing strips are in contact and extrusion with the outside of the annular sheet.

[0016] Preferably, the sampling auxiliary mechanism also includes a movable inclined block, a pushing cone block, a sensing switch, an annular mounting port, a fixed spring and an annular mounting piece. A plurality of movable inclined blocks are installed around the middle of the top of the movable filter plate, a pushing cone block is installed on one side of the bottom end of the circular mesh cylinder, an annular mounting piece is installed around the top of the movable filter plate, an annular mounting port is opened around the bottom end of the movable frame head, a plurality of fixed springs are installed on the top of the inner cavity of the annular mounting port, an sensing switch is installed on the middle and upper end of one side of the inner cavity of the annular mounting port, the sensing switch is electrically connected to the control panel, the top of the annular mounting piece extends into the inside of the annular mounting port and is connected to the bottom of the fixed spring, and a plurality of filter holes are opened equidistantly around the outside of the movable filter plate and the annular mounting piece.

[0017] Preferably, the moving mechanism also includes a sealing sleeve, a stabilizing sleeve, an electric push rod, a connecting rod and a movable blocking plate. A movable blocking plate is installed at the bottom end of the thruster, and the movable blocking plate is located at the bottom end of the inner cavity of the movable through groove. Stabilizing sleeves are installed on both sides of the inner cavity of the cover frame. A connecting rod is arranged at the upper end of the inner part of the cover frame, and both ends of the connecting rod are connected to the top end of the thruster through the stabilizing sleeve. A connecting block is installed at the upper end of the left side of the thruster on the left side, and an electric push rod is installed at the upper end of the left side of the inner cavity of the cover frame, and the bottom end of the electric push rod is connected to the top end of the connecting block, and the thruster is electrically connected to the control panel.

[0018] Preferably, the distance measuring mechanism also includes a moving block, an electronic counter, a moving pulley, a mounting port and an elastic push rod. A mounting port is opened on the left side of the inner cavity of the movable hole, an electronic counter is installed on the upper end of the right side of the inner cavity of the mounting port, the electronic counter is electrically connected to the control panel, a moving block is movably installed in the inner cavity of the mounting port, a moving pulley is installed in the middle of the right side of the moving block, elastic push rods are installed on the upper end and bottom end of the side of the moving block away from the moving pulley, the left side of the elastic push rod is connected to the inner cavity of the mounting port, and pulleys are installed on both sides of the top of the inner cavity of the movable hole.

[0019] Preferably, the lowering mechanism also includes a servo motor and a connecting rope. A servo motor is installed on one side of the top of the movable float plate through a mounting seat. The output shaft of the servo motor is connected to one side of the retracting roller. A connecting rope is wrapped around the outside of the retracting roller. The end of the connecting rope away from the retracting roller passes through the inside of the movable hole and is connected to the top of the movable frame head. A notch is opened on one side of the outside of the connecting rope every 0.5 meters. The inside of the connecting rope is a hollow structure, and the servo motor is electrically connected to the control panel.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention starts the transmission suction mechanism, the mobile sampling mechanism and the suction auxiliary mechanism. When the suction auxiliary mechanism is used to collect and sample at multiple points, the sampling efficiency is increased through the double negative pressure state, and the sealing during extraction is ensured to avoid the sealing being insufficient to reduce the collection efficiency. The liquid water during sampling can also be further filtered out to avoid the collected water body still containing debris, which not only causes blockage but also affects the accuracy of later detection, and increases the stability during collection and sampling. The adsorption capacity of the collection end can be adjusted according to the situation of the collected water body, and the adjustment and processing capacity when encountering abnormal situations during sampling is increased, and the stability during collection and sampling is improved to avoid abnormal situations occurring at the collection end during the collection and sampling process, while the adsorption force remains unchanged, affecting the stability and efficiency of later collection and sampling.

[0022] The present invention also uses a sampling auxiliary mechanism, which can not only remove impurities in the water body of the sampling water area during the sampling and collection process, but also remove impurities adsorbed on the outside of the filtering end by vibration, thereby increasing the stability and efficiency of the filtering end during operation, and at the same time monitoring the situation at the bottom of the sampling water area, thereby avoiding abnormalities at the filtering end caused by long-term work during auxiliary sampling of the water body, which the staff is unaware of, affecting the efficiency of normal sampling and collection, and even causing sampling failure, affecting the process of the subsequent detection steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Provides an overall structural diagram for an embodiment of the present invention;

[0024] Figure 2 A structural diagram of a movable frame head and a cover frame provided by an embodiment of the present invention;

[0025] Figure 3 A structural diagram of a horizontal cross-section of a sealing frame provided by an embodiment of the present invention;

[0026] Figure 4 A structural diagram of a horizontal cross-section of a rotating rod and a fixing ring provided in an embodiment of the present invention;

[0027] Figure 5 A structural diagram of a side view of a mounting rotating block provided in an embodiment of the present invention;

[0028] Figure 6 A three-dimensional structural diagram of a scraper provided in an embodiment of the present invention;

[0029] Figure 7 The embodiment of the present invention provides Figure 2 The enlarged structural diagram at A in the middle;

[0030] Figure 8 The embodiment of the present invention provides Figure 2The enlarged structure diagram at B in the middle;

[0031] Fig. 9 The embodiment of the present invention provides Figure 3 Enlarged structural diagram at point C in the middle.

[0032] In the figure: 1, movable floating plate; 2, cover frame; 3, mobile sampling mechanism; 301, movable frame head; 302, sampling tube; 303, micro detector; 304, one-way valve tube; 305, floating plate; 306, liquid level sensor; 307, suction one-way valve; 4, transmission suction mechanism; 401, single-phase motor; 402, turbofan head; 403, installation frame; 404, rotating rod; 405, sealing frame; 406, rotating block; 407, limiting ring sleeve ; 408, round block; 409, connecting magnetic block; 410, scraper; 411, moving top rod; 412, squeezing spring; 413, squeezing notch; 5, suction auxiliary mechanism; 501, round net cylinder; 502, fan blade; 503, rotating rod; 504, mounting spring; 505, movable rod; 506, mounting notch; 507, small electric telescopic rod; 508, fixing ring; 509, installing rotating block; 510, moving slider; 511, installing Rotating groove; 512, pulling rope; 513, arc-shaped sliding groove; 514, touch switch; 515, reset spring; 6, sampling auxiliary mechanism; 601, movable filter plate; 602, moving inclined block; 603, pushing cone block; 604, induction switch; 605, annular mounting port; 606, fixing spring; 607, annular mounting sheet; 7, moving mechanism; 701, propeller; 702, movable through groove; 703, sealing sleeve; 704, stable sliding sleeve; 7 05. Electric push rod; 706. Connecting rod; 707. Movable blocking plate; 8. Lowering mechanism; 801. Servo motor; 802. Mounting shaft frame; 803. Retracting and releasing roller; 804. Connecting rope; 9. Distance measuring mechanism; 901. Moving block; 902. Electronic counter; 903. Movable hole; 904. Moving pulley; 905. Mounting port; 906. Elastic push rod; 10. Movable floating block; 11. Baffle; 12. Mounting ring strip; 13. Sealing strip. DETAILED DESCRIPTION

[0033] 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.

[0034] See also Figure 1-9The present invention provides a technical solution: a water multi-point sampling device for environmental detection, comprising a movable floating plate 1, a cover frame 2 is installed on the top of the movable floating plate 1, and a baffle 11 is installed at the bottom of the movable frame head 301 at a position relative to the sampling tube 302;

[0035] The mobile sampling mechanism 3 includes a movable frame head 301, a sampling tube 302 and a micro detector 303. The movable frame head 301 is movably installed at the bottom of the movable floating plate 1. A plurality of sampling tubes 302 are equidistantly installed around the inner cavity of the movable frame head 301. The micro detector 303 is installed on both sides of the top of the inner cavity of the movable frame head 301. A plurality of detection wires are installed at the detection end of the micro detector 303.

[0036] The transmission suction mechanism 4 includes a single-phase motor 401, a turbofan head 402 and a mounting frame 403. The mounting frame 403 is mounted on the top of the inner cavity of the movable frame head 301. The single-phase motor 401 is mounted on the top of the inner cavity of the mounting frame 403, and the turbofan head 402 is arranged on the bottom of the inner cavity of the mounting frame 403.

[0037] The suction auxiliary mechanism 5 includes a circular net tube 501. A suction round opening is provided at the bottom of the movable frame head 301. The circular net tube 501 is movably installed inside the suction round opening.

[0038] The sampling auxiliary mechanism 6 includes a movable filter plate 601, and the movable filter plate 601 is movably mounted at the bottom of the movable frame head 301;

[0039] The moving mechanism 7 includes a propeller 701 and a movable through slot 702. The movable through slots 702 are provided in the middle of both sides of the movable floating plate 1. The propellers 701 are provided inside the movable through slots 702.

[0040] The lowering mechanism 8 includes a mounting shaft frame 802 and a retracting roller 803. The mounting shaft frames 802 are mounted on both sides of the middle of the top of the movable floating plate 1. The retracting roller 803 is mounted between the tops of the mounting shaft frames 802 on both sides through bearings;

[0041] The distance measuring mechanism 9 comprises a movable hole 903 . The movable hole 903 is opened in the middle of the movable floating plate 1 . The movable floating blocks 10 are installed around the outside of the movable floating plate 1 .

[0042] The mobile sampling mechanism 3 also includes a one-way valve tube 304, a floating plate 305, a liquid level sensor 306 and a suction one-way valve 307. The top of the sampling tube 302 is equipped with a one-way valve tube 304, and the end of the one-way valve tube 304 away from the sampling tube 302 is connected to the bottom of the installation frame 403. The bottom of the inner cavity of the sampling tube 302 is movably provided with a floating plate 305. Two liquid level sensors 306 are installed on one side of the inner cavity of the sampling tube 302. The bottom of the sampling tube 302 is equipped with a suction one-way valve 307. 7, and the suction check valve 307 is an intelligent control valve, and the detection line passes through the top of the sampling tube 302 and is connected to one side of the top of the floating plate 305, the top of the floating plate 305 is equipped with a detection end, the top and bottom of the sampling tube 302 are both provided with connection ports, a control panel is installed on the rear side of the inner cavity of the cover frame 2, the liquid level sensor 306 and the micro detector 303 are electrically connected to the control panel, and the control panel is wirelessly connected to the external control center, and the suction check valve 307 is electrically connected to the control panel;

[0043] The specific implementation method is as follows: when sampling water at multiple points, the suction one-way valve 307 at the corresponding position is started to store the extracted liquid water in the sampling tube 302 at the corresponding position. After the liquid water is stored in the sampling tube 302, the float 305 floats. When the float 305 contacts the liquid level sensor 306, it triggers the control panel to tell the staff the sampling position, and at the same time starts the micro detector 303 to pre-detect the water quality through the detection end, and transmits the detection results to the staff, so that the staff can make judgments and processes in advance.

[0044] The transmission suction mechanism 4 also includes a rotating rod 404, a sealing frame 405, a rotating block 406, a limiting ring sleeve 407, a circular block 408, a connecting magnetic block 409, a scraper 410, a movable top rod 411, an extrusion spring 412 and an extrusion notch 413. The sealing frame 405 is installed at the bottom end of the inner cavity of the movable frame head 301, and the rotating rod 404 is installed at the bottom end of the single-phase motor 401. The upper end of the rotating rod 404 is connected to the middle part of the turbofan head 402. A rotating hole is opened in the middle of the bottom end of the mounting frame 403. The top of the sealing frame 405 and the top of the inner cavity are both installed with a limiting ring sleeve 407. The rotating block 406 is movably installed inside the top limiting ring sleeve 407, and the inner cavity of the bottom limiting ring sleeve 407 is movably installed with Circular block 408, the bottom end of the rotating rod 404 is connected to the top of the rotating block 406, the bottom end of the rotating block 406 and the top of the circular block 408 are both installed with connecting magnetic blocks 409, a number of round beads are installed around the rotating block 406 and the circular block 408, a scraper 410 is movably installed in the middle of the upper end of the inner cavity of the sealing frame 405, extrusion notches 413 are opened on both sides of the top of the inner cavity of the sealing frame 405, and a moving push rod 411 is slidably installed at the bottom end of the inner cavity of the extrusion notch 413, the bottom end of the moving push rod 411 is connected to the top of the scraper 410, and the top of the moving push rod 411 is installed with an extrusion spring 412, both ends of the scraper 410 are arc-shaped structures, and the single-phase motor 401 is electrically connected to the control panel;

[0045] The specific implementation method is as follows: when sampling is performed, the single-phase motor 401 is started to drive the rotating rod 404 to rotate, and the turbofan head 402 is driven to rotate inside the installation frame 403 through the rotating rod 404, so that negative pressure is generated inside the installation frame 403 for sampling. When the rotating rod 404 rotates, the rotating block 406 is driven to rotate inside the limiting ring sleeve 407 at the upper end. Through the magnetic attraction generated between the connecting magnetic block 409 at the upper end and the bottom end, the connecting magnetic block 409 and the circular block 408 at the bottom end are driven to rotate, and the rotating rod 503 is mobilized to rotate. When the connecting magnetic block 409 at the bottom is rotating, it contacts the friction force with the bottom end of the scraper 410. Through the arc-shaped structure on both sides, the impurities accumulated on the upper end of the connecting magnetic block 409 can be pushed away, so as to avoid the accumulation of dirt on the top of the connecting magnetic block 409 to affect the normal magnetic attraction, and the moving top rod 411 and the scraper 410 are pushed downward by the extrusion spring 412 to increase the fit between the bottom end of the scraper 410 and the connecting magnetic block 409.

[0046] The suction assist mechanism 5 also includes a fan blade 502, a rotating rod 503, a mounting spring 504, a movable rod 505, a mounting slot 506, a small electric telescopic rod 507, a fixing ring 508, a mounting rotating block 509, a movable slider 510, a mounting rotating slot 511, a pulling rope 512, an arc-shaped sliding slot 513, a touch switch 514 and a reset spring 515. The rotating rod 503 is mounted at the bottom end of the circular block 408, and a mounting slot 506 is provided at the top of the rotating rod 503. A small electric telescopic rod 507 is installed in the inner cavity of the mounting slot 506. The telescopic rod 507 is electromagnetically connected to the control panel, a connecting ring is installed at the bottom of the small electric telescopic rod 507, a movable rod 505 is installed at the bottom of the rotating rod 503, a round opening is opened at the top of the circular net tube 501, a ring plate is installed at the bottom of the movable rod 505 through the round opening, a mounting spring 504 is installed at the bottom of the rotating rod 503, a rubber sealing ring is installed at the bottom of the outer periphery of the rotating rod 503, and the bottom end of the rubber sealing ring is connected to the top of the circular net tube 501, a fixing ring 508 is installed at the outside of the rotating rod 503, and a plurality of fan blades 508 are evenly installed around the outer periphery of the fixing ring 508. 02, the ends of the fan blades 502 close to the fixed ring 508 are all equipped with an annular sheet, the outside of the fixed ring 508 is provided with a mounting groove 511 at the relative position of the fan blades 502, the mounting groove 511 is movably provided with a mounting block 509, the end of the mounting block 509 away from the mounting groove 511 is connected to the fan blades 502, the inner cavity of the mounting groove 511 is provided with an arc groove 513, the top of the mounting block 509 is provided with a movable slider 510, the movable slider 510 is slidably connected with the top of the inner cavity of the arc groove 513, and the arc groove 513 is provided with a movable slider 510. A return spring 515 is installed inside the slide groove 513, one end of the return spring 515 is connected to one side of the movable slider 510, a pull rope 512 is installed on the side of the movable slider 510 close to the return spring 515, the pull rope 512 passes through the fixed ring 508 and one end of the rotating rod 503 and is connected to the outside of the connecting ring, three touch switches 514 are installed at equal distances on one side of the inner cavity of the arc-shaped slide groove 513, the touch switches 514 are electromagnetically connected to the control panel, and a number of warning lights are installed on the outside of the control panel corresponding to the touch switches 514, and the movable rod 505 is a rectangular structure;

[0047] The specific implementation method is as follows: when the rotating rod 503 rotates, it drives the movable rod 505 to rotate, and drives the circular net tube 501 to rotate. When the circular net tube 501 is driven by a force, the round mouth slides outside the movable rod 505 and squeezes the installation spring 504. Later, the installation spring 504 after squeezing drives the circular net tube 501 to reset, and the collected liquid water is further filtered through the circular net tube 501. When the rotating rod 503 drives the fixed ring 508 to rotate, it drives the surrounding fan blades 502 to rotate. When the fan blades 502 rotate, a friction is generated inside the sealing frame 405. The negative pressure is generated to improve the efficiency of sampling. When too much debris triggers the induction switch 604, the outside personnel activate the small electric telescopic rod 507 through the control panel to drive the connecting ring to move, so that the pulling rope 512 moves, and the moving slider 510 is driven to move by the pulling rope 512. When the moving slider 510 slides inside the arc-shaped slide groove 513, the installation rotating block 509 is driven to rotate inside the installation rotating groove 511, and the fan blade 502 is driven to rotate to adjust the angle of the fan blade 502. When the adjustment is completed, the adsorption force generated when the fan blade 502 rotates is increased, and the moving slider 510 slides inside the arc-shaped slide groove 513. When sliding inside the groove 513, the reset spring 515 is squeezed, and later the reset spring 515 after squeezing drives the moving slider 510, the installation rotating block 509 and the fan blade 502 to reset. When the moving slider 510 slides inside the arc-shaped slide groove 513, the moving slider 510 contacts the touch switch 514, and the corresponding warning light is activated by contacting the touch switch 514 at different positions, which will tell the staff the angle of adjustment of the fan blade 502. When multi-point sampling is performed, the sampling efficiency is increased by the double negative pressure state, and the sealing during extraction is ensured to avoid Insufficient sealing reduces the collection efficiency, and the liquid water during sampling can be further filtered out to avoid debris in the collected water, which not only causes blockage but also affects the accuracy of subsequent detection. It increases the stability during sampling and collection, and can also adjust the adsorption capacity of the collection end according to the conditions of the collected water, increase the adjustment and processing capabilities when encountering abnormal situations during sampling, and improve the stability during sampling, to avoid abnormal situations at the collection end during the sampling process, while the adsorption force remains unchanged, affecting the stability and efficiency of subsequent sampling.

[0048] The cross-sections of the installation rotating block 509 and the installation rotating groove 511 are convex structures. A ball is installed on the side of the movable slider 510 away from the installation rotating block 509. A plurality of circular holes are evenly spaced around the outside of the circular net cylinder 501, and the size of the circular holes on the outside of the circular net cylinder 501 is smaller than the filter holes on the outside of the movable filter plate 601. The outside of the fixed ring 508 is equipped with installation ring strips 12 around the annular sheet. The inner cavity of the installation ring strip 12 is equipped with sealing strips 13 around. The sealing strips 13 are made of rubber material. The sealing strips 13 are in contact and extruded with the outside of the annular sheet, and a magnetic ring is installed inside the installation ring strip 12.

[0049] The specific implementation is as follows: when the annular sheet rotates, the outer portion of the annular sheet slides outside the sealing strip 13 to improve the sealing performance of the interior of the mounting groove 511, and the metal debris floating near the mounting groove 511 is removed through the magnetic ring inside the mounting ring strip 12 to prevent external debris from running into the interior of the mounting groove 511 during use. When the mounting rotating block 509 rotates, the friction during rotation is increased.

[0050] The sampling auxiliary mechanism 6 also includes a movable inclined block 602, a pushing cone block 603, a sensing switch 604, an annular mounting port 605, a fixing spring 606 and an annular mounting piece 607. A plurality of movable inclined blocks 602 are installed around the middle of the top of the movable filter plate 601, a pushing cone block 603 is installed on one side of the bottom end of the circular net cylinder 501, an annular mounting piece 607 is installed around the top of the movable filter plate 601, an annular mounting port 605 is opened around the bottom end of the movable frame head 301, a plurality of fixing springs 606 are installed on the top of the inner cavity of the annular mounting port 605, an induction switch 604 is installed on the middle and upper end of one side of the inner cavity of the annular mounting port 605, the induction switch 604 is electrically connected to the control panel, the top of the annular mounting piece 607 extends inside the annular mounting port 605 and is connected to the bottom of the fixing spring 606, and a plurality of filter holes are opened equidistantly around the outside of the movable filter plate 601 and the annular mounting piece 607;

[0051] The specific implementation is as follows: when the movable frame head 301 moves downward to perform the collection operation, the debris in the water body during sampling can be filtered through the movable filter plate 601 first, and when the circular net tube 501 rotates, the pushing cone block 603 is driven to rotate. When the pushing cone block 603 rotates to the position of the moving inclined block 602, the inclined surfaces around the outer periphery of the pushing cone block 603 are in contact with the inclined surfaces of the moving inclined block 602, and the moving inclined block 602 and the movable filter plate 601 are pushed to move, which drives the annular mounting piece 607 to slide inside the annular mounting opening 605, and stretches the fixed spring 606 during sliding. Later, the stretched fixed spring 606 drives the movable filter plate 601 and the annular mounting piece 607 to reset. If there is too much silt or debris inside the sampling area, the extrusion force generated by the movable filter plate 601 will be too large, and then the movable filter plate 601 will be driven to filter out the debris. The movable filter plate 601 pushes the annular mounting plate 607 to move toward the upper end of the inner cavity of the annular mounting opening 605, so that the annular mounting plate 607 contacts the induction switch 604, starts the control panel and tells the staff the situation encountered through the wireless transmission function of the control panel, and the staff makes a judgment and handles it. In the process of sampling and collecting, it can not only remove impurities in the water body in the sampling water area, but also remove impurities adsorbed on the outside of the filter end by vibration, thereby increasing the stability and efficiency of the filter end during operation. At the same time, it can also monitor the situation at the bottom of the sampling water area to avoid abnormalities at the filtration end due to long-term work during auxiliary sampling of the water body, and the staff cannot know it, which affects the efficiency of normal sampling and even causes sampling failure, affecting the process of subsequent detection steps.

[0052] The moving mechanism 7 also includes a sealing sleeve 703, a stabilizing sleeve 704, an electric push rod 705, a connecting rod 706 and a movable blocking plate 707. The bottom end of the propeller 701 is equipped with a movable blocking plate 707, and the movable blocking plate 707 is located at the bottom end of the inner cavity of the movable through groove 702. Stabilizing sleeves 704 are installed on both sides of the inner cavity of the cover frame 2. A connecting rod 706 is arranged on the upper end of the inner part of the cover frame 2. Both ends of the connecting rod 706 pass through the stabilizing sleeve 704 and are connected to the top of the propeller 701. A connecting block is installed on the upper left end of the left propeller 701. An electric push rod 705 is installed on the upper left end of the inner cavity of the cover frame 2. The bottom end of the electric push rod 705 is connected to the top of the connecting block. The propeller 701 is electrically connected to the control panel.

[0053] The specific implementation method is as follows: when sampling on the water area, the movable floating plate 1 is placed on the water surface, the electric push rod 705 is started to drive the propeller 701 on the left side to move downward, and the propeller 701 on the right side is driven to move downward through the connecting rod 706, and the propellers 701 on both sides pass through the movable through groove 702 and move to the bottom end of the movable floating plate 1, so that the propeller 701 contacts the water, and the propeller 701 is started to drive the movable floating plate 1 and the movable frame head 301 to move.

[0054] The distance measuring mechanism 9 also includes a moving block 901, an electronic counter 902, a moving pulley 904, a mounting port 905 and an elastic push rod 906. The mounting port 905 is opened on the left side of the inner cavity of the movable hole 903, and the electronic counter 902 is installed on the upper end of the right side of the inner cavity of the mounting port 905. The electronic counter 902 is electrically connected to the control panel. The moving block 901 is movably installed in the inner cavity of the mounting port 905, and a moving pulley 904 is installed in the middle of the right side of the moving block 901. The upper end and the bottom end of the side of the moving block 901 away from the moving pulley 904 are both installed with an elastic push rod 906. The left side of the elastic push rod 906 is connected to the inner cavity of the mounting port 905, and pulleys are installed on both sides of the top of the inner cavity of the movable hole 903;

[0055] The specific implementation is as follows: when the connecting rope 804 passes through the movable hole 903, it will drive the movable pulley 904 to rotate. When the notch outside the connecting rope 804 moves to the outside of the movable pulley 904, the movable pulley 904 loses its restraining force, and the movable block 901 is driven to move by the elastic top rod 906 in a compressed state, which drives the movable pulley 904 to move to the side of the notch, and makes the movable block 901 contact with the electronic counter 902. When it contacts once, the count is one, and when it contacts twice, the count is two, and so on. The distance the connecting rope 804 is released is judged by the number of counts.

[0056] The lowering mechanism 8 also includes a servo motor 801 and a connecting rope 804. The servo motor 801 is installed on one side of the top of the movable floating plate 1 through a mounting seat. The output shaft of the servo motor 801 is connected to one side of the retracting roller 803. The connecting rope 804 is wound around the outside of the retracting roller 803. The end of the connecting rope 804 away from the retracting roller 803 passes through the inside of the movable hole 903 and is connected to the top of the movable frame head 301. A notch is opened every 0.5 meters on one side of the outside of the connecting rope 804. The inside of the connecting rope 804 is a hollow structure. The servo motor 801 is electrically connected to the control panel, and the electronic counter 902 is waterproofed.

[0057] The specific implementation method is as follows: when collecting water, the servo motor 801 is started to drive the retractable roller 803 to rotate, so that the connecting rope 804 is in a relaxed state, and the movable frame head 301 loses its restraining force, and the movable frame head 301 moves downward. When the connecting rope 804 passes through the movable hole 903, it drives the movable pulley 904 to rotate. When the notch outside the connecting rope 804 moves to the outside of the movable pulley 904, the movable pulley 904 loses its restraining force, and the movable block 901 is driven to move through the elastic top rod 906 in a compressed state, which drives the movable pulley 904 to move to the notch side, and makes the movable pulley 904 move to the notch side. The moving block 901 contacts the electronic counter 902. When it contacts once, the count is one, and when it contacts twice, the count is two. Similarly, the distance that the connecting rope 804 is released is judged by the number of counts. In the sampling process, the depth of the sampling water area is judged by the released distance, and the depth of the water area is judged according to the number of counts. The number and depth of the sampling are determined to ensure greater accuracy in the sampling process, and to avoid the situation in which the depth of the water area is unknown when collecting in outdoor waters, and the number of collections is too small, resulting in errors in the final detection and analysis results.

[0058] Working principle: When the present invention is sampling on the water area, the movable floating plate 1 is placed on the water surface, the electric push rod 705 is started to drive the propeller 701 on the left to move downward, and the propeller 701 on the right is driven to move downward through the connecting rod 706, and the propellers 701 on both sides pass through the movable slot 702 and move to the bottom of the movable floating plate 1, so that the propeller 701 contacts the water, and the propeller 701 is started to drive the movable floating plate 1 and the movable frame head 301 to move. When collecting water, the servo motor 801 is started to drive the retractable roller 803 to rotate, so that the connecting rope 804 is in a slack state, and the movable frame head 301 loses its elasticity. When the restraining force is removed, the movable frame head 301 moves downward, and when the connecting rope 804 passes through the movable hole 903, the movable pulley 904 is driven to rotate. When the notch outside the connecting rope 804 moves to the outside of the movable pulley 904, the movable pulley 904 loses the restraining force, and the movable block 901 is driven to move by the elastic top rod 906 in a compressed state, which drives the movable pulley 904 to move to the notch side, and makes the movable block 901 contact with the electronic counter 902. When the contact is made once, the count is one, and when the contact is made twice, the count is two. By analogy, the distance of the connecting rope 804 released is judged by the number of counts.

[0059] When collecting samples from multiple points of the water body, the suction one-way valve 307 at the corresponding position is started to store the extracted liquid water in the sampling tube 302 at the corresponding position. After the liquid water is stored in the sampling tube 302, the float 305 floats. When the float 305 contacts the liquid level sensor 306, it triggers the control panel to tell the staff the sampling position, and at the same time starts the micro detector 303 to pre-detect the water quality through the detection end, and transmits the detection result to the staff, who can make judgments in advance. When sampling, the single-phase motor 401 is started to drive the rotating rod 404 to rotate, and the rotating rod 404 drives the turbofan head 402 to rotate inside the installation frame 403, so that a negative pressure is generated inside the installation frame 403. When the rotating rod 404 rotates, the rotating block 406 is driven to rotate inside the limiting ring sleeve 407 at the upper end. The magnetic attraction generated between the connecting magnetic block 409 at the upper end and the bottom end will drive the connecting magnetic block 409 and the circular block 408 at the bottom end to rotate, and the rotating rod 503 is mobilized to rotate. When the connecting magnetic block 409 at the bottom is rotating, it contacts the friction force at the bottom end of the scraper 410. Through the arc-shaped structure on both sides, the impurities accumulated on the upper end of the connecting magnetic block 409 can be pushed away, avoiding the accumulation of dirt on the top of the connecting magnetic block 409 to affect the normal magnetic attraction, and the moving top rod 411 and the scraper 410 are pushed downward by the extrusion spring 412 to increase the fit between the bottom end of the scraper 410 and the connecting magnetic block 409.

[0060] When the rotating rod 503 rotates, it drives the movable rod 505 to rotate, and drives the circular net tube 501 to rotate. When the circular net tube 501 is pushed, the round mouth slides outside the movable rod 505 and squeezes the installation spring 504. Later, the circular net tube 501 is reset by the installation spring 504 after squeezing, and the collected liquid water is further filtered through the circular net tube 501. When the rotating rod 503 drives the fixing ring 508 to rotate, it will drive the surrounding fan blades 502 to rotate. When the fan blades 502 rotate, negative pressure will be generated inside the sealing frame 405 to improve the efficiency of sampling. When too much debris triggers the induction switch 604, the outside personnel start the small electric telescopic rod 507 through the control panel to drive the connecting ring to move, so that the pulling rope 512 moves, and the pulling rope 512 brings The movable slider 510 moves. When the movable slider 510 slides inside the arc-shaped slide groove 513, the installation rotating block 509 is driven to rotate inside the installation rotating groove 511, and the fan blade 502 is driven to rotate to adjust the angle of the fan blade 502. When the adjustment is completed, the adsorption force generated when the fan blade 502 rotates is increased, and when the movable slider 510 slides inside the arc-shaped slide groove 513, the reset spring 515 is squeezed. Later, the movable slider 510, the installation rotating block 509 and the fan blade 502 are reset by the squeezed reset spring 515. When the movable slider 510 slides inside the arc-shaped slide groove 513, the movable slider 510 contacts the touch switch 514. By contacting the touch switch 514 at different positions and activating the corresponding warning light, the staff will be informed of the adjusted angle of the fan blade 502.

[0061] When the movable frame head 301 moves downward to perform the collection operation, the debris in the water body during sampling can be filtered through the movable filter plate 601, and when the circular net cylinder 501 rotates, the pushing cone block 603 is driven to rotate. When the pushing cone block 603 rotates to the position of the moving inclined block 602, the inclined surfaces around the outer periphery of the pushing cone block 603 contact the inclined surfaces of the moving inclined block 602, and the moving inclined block 602 and the movable filter plate 601 are pushed to move, which drives the annular mounting piece 607 to slide inside the annular mounting opening 605, and the solid The fixed spring 606 is stretched, and later the stretched fixed spring 606 drives the movable filter plate 601 and the annular mounting piece 607 to reset. If there is too much silt or debris inside the sampling area, the extrusion force generated by the movable filter plate 601 will be too large. Then the movable filter plate 601 pushes the annular mounting piece 607 to move toward the upper end of the inner cavity of the annular mounting port 605, so that the annular mounting piece 607 contacts the induction switch 604, starts the control panel, and tells the staff the situation encountered through the wireless transmission function of the control panel.

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

[0063] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water body multi-point sampling device for environmental detection, comprising a movable floating plate (1), a cover frame (2) being installed at the top of the movable floating plate (1), and a baffle (11) being installed at the bottom of the movable frame head (301) at a position opposite to the sampling tube (302), characterized in that: A mobile sampling mechanism (3), the mobile sampling mechanism (3) comprising a movable frame head (301), a sampling tube (302) and a micro detector (303), the movable frame head (301) being movably mounted on the bottom end of the movable floating plate (1), a plurality of sampling tubes (302) being equidistantly mounted around the inner cavity of the movable frame head (301), micro detectors (303) being mounted on both sides of the top end of the inner cavity of the movable frame head (301), and a plurality of detection wires being mounted on the detection end of the micro detector (303); A transmission suction mechanism (4), the transmission suction mechanism (4) comprising a single-phase motor (401), a turbofan head (402) and a mounting frame (403), the mounting frame (403) being mounted on the top end of the inner cavity of the movable frame head (301), the single-phase motor (401) being mounted on the top end of the inner cavity of the mounting frame (403), and the turbofan head (402) being arranged on the bottom end of the inner cavity of the mounting frame (403); A suction auxiliary mechanism (5), the suction auxiliary mechanism (5) comprising a circular net cylinder (501), a suction circular opening being provided at the bottom end of the movable frame head (301), and the circular net cylinder (501) being movably mounted inside the suction circular opening; A sampling auxiliary mechanism (6), the sampling auxiliary mechanism (6) comprising a movable filter plate (601), the movable filter plate (601) being movably mounted on the bottom end of the movable frame head (301); A moving mechanism (7), the moving mechanism (7) comprising a propeller (701) and a movable through groove (702), the movable through groove (702) being provided in the middle of both sides of the movable floating plate (1), and the inside of the movable through groove (702) being provided with a propeller (701); A lowering mechanism (8), the lowering mechanism (8) comprising a mounting shaft frame (802) and a retracting roller (803), the mounting shaft frames (802) being mounted on both sides of the middle of the top end of the movable floating plate (1), and the retracting roller (803) being mounted between the top ends of the mounting shaft frames (802) on both sides via bearings; A distance measuring mechanism (9), the distance measuring mechanism (9) comprising a movable hole (903), the movable hole (903) being opened in the middle of the movable floating plate (1), and movable floating blocks (10) being installed around the outside of the movable floating plate (1); The transmission suction mechanism (4) further comprises a rotating rod (404), a sealing frame (405), a rotating block (406), a limiting ring sleeve (407), a circular block (408), a connecting magnetic block (409), a scraper (410), a movable top rod (411), an extrusion spring (412) and an extrusion notch (413); the sealing frame (405) is installed at the bottom end of the inner cavity of the movable frame head (301); the rotating rod (404) is installed at the bottom end of the single-phase motor (401); the upper end of the rotating rod (404) is connected to the middle part of the turbofan head (402); a rotating hole is opened in the middle part of the bottom end of the mounting frame (403); the top end of the sealing frame (405) and the top end of the inner cavity are both installed with limiting ring sleeves (407); the rotating block (406) is movably installed inside the limiting ring sleeve (407) at the top end; the inner cavity of the limiting ring sleeve (407) at the bottom end is movably installed with a rotating block (406); A circular block (408) is provided, the bottom end of the rotating rod (404) is connected to the top end of the rotating block (406), the bottom end of the rotating block (406) and the top end of the circular block (408) are both installed with connecting magnetic blocks (409), a plurality of round beads are installed around the outside of the rotating block (406) and the circular block (408), a scraper (410) is movably installed in the middle of the upper end of the inner cavity of the sealing frame (405), extrusion notches (413) are provided on both sides of the top end of the inner cavity of the sealing frame (405), a moving push rod (411) is slidably installed at the bottom end of the inner cavity of the extrusion notch (413), the bottom end of the moving push rod (411) is connected to the top end of the scraper (410), the top end of the moving push rod (411) is installed with an extrusion spring (412), both ends of the scraper (410) are in an arc structure, and the single-phase motor (401) is electrically connected to the control panel; The suction assist mechanism (5) further comprises a fan blade (502), a rotating rod (503), a mounting spring (504), a movable rod (505), a mounting slot (506), a small electric telescopic rod (507), a fixing ring (508), a mounting rotating block (509), a movable slider (510), a mounting rotating slot (511), a pulling rope (512), an arc-shaped sliding slot (513), a touch switch (514) and a reset spring (515), wherein the rotating rod (503) is mounted at the bottom end of the circular block (408), the top end of the rotating rod (503) is provided with a mounting slot (506), and the inner cavity of the mounting slot (506) is provided with a small electric telescopic rod (5 07), the small electric telescopic rod (507) is electromagnetically connected to the control panel, a connecting ring is installed at the bottom end of the small electric telescopic rod (507), a movable rod (505) is installed at the bottom end of the rotating rod (503), a round opening is opened at the top end of the circular net tube (501), a ring plate is installed at the bottom end of the movable rod (505) through the round opening, a mounting spring (504) is installed at the bottom end of the rotating rod (503), a rubber sealing ring is installed at the bottom end of the rotating rod (503), and the bottom end of the rubber sealing ring is connected to the top end of the circular net tube (501), a fixing ring (508) is installed at the outside of the rotating rod (503), and the fixing ring (508) is installed at the outside of the fixing ring (508). A plurality of fan blades (502) are installed at equal intervals, and an annular sheet is installed at one end of the fan blade (502) close to the fixing ring (508). The fixing ring (508) is provided with mounting grooves (511) at the positions relative to the fan blade (502) on the periphery of the outside. A mounting block (509) is movably installed inside the mounting groove (511). One end of the mounting block (509) away from the mounting groove (511) is connected to the fan blade (502). An arc-shaped slide groove (513) is provided on one side of the inner cavity of the mounting groove (511). A movable slider (510) is installed at the top of the mounting slider (509). The movable slider (510) and the arc-shaped slide groove (513) are connected to each other. The top of the inner cavity of the arc-shaped slide groove (513) is slidably connected, a return spring (515) is installed inside the arc-shaped slide groove (513), one end of the return spring (515) is connected to one side of the movable slider (510), a pull rope (512) is installed on the side of the movable slider (510) close to the return spring (515), and one end of the pull rope (512) passes through the fixed ring (508) and the rotating rod (503) and is connected to the outside of the connecting ring, three touch switches (514) are equidistantly installed on one side of the inner cavity of the arc-shaped slide groove (513), the touch switches (514) are electromagnetically connected to the control panel, and a plurality of warning lights are installed on the outside of the control panel corresponding to the touch switches (514).

2. The multi-point water sampling device for environmental detection according to claim 1, characterized in that: The mobile sampling mechanism (3) further comprises a one-way valve tube (304), a floating plate (305), a liquid level sensor (306) and a suction one-way valve (307). The top of the sampling tube (302) is provided with a one-way valve tube (304). The end of the one-way valve tube (304) away from the sampling tube (302) is connected to the bottom of the mounting frame (403). The bottom of the inner cavity of the sampling tube (302) is movably provided with a floating plate (305). Two liquid level sensors (306) are provided on one side of the inner cavity of the sampling tube (302). 06), a suction check valve (307) is installed at the bottom of the sampling tube (302), and a detection line passes through the top of the sampling tube (302) and is connected to one side of the top of the floating plate (305), a detection end is installed at the top of the floating plate (305), and connection ports are provided at the top and bottom of the sampling tube (302), a control panel is installed at the rear side of the inner cavity of the cover frame (2), the liquid level sensor (306) and the micro detector (303) are electrically connected to the control panel, and the control panel is wirelessly connected to an external control center.

3. The multi-point water sampling device for environmental detection according to claim 1 is characterized in that: The cross-sections of the mounting rotating block (509) and the mounting rotating groove (511) are convex structures. A spherical ball is mounted on the side of the movable slider (510) away from the mounting rotating block (509). A plurality of circular holes are equidistantly provided around the outside of the circular net cylinder (501). The outside of the fixing ring (508) is provided with mounting ring strips (12) around the annular sheet. The inner cavity of the mounting ring strip (12) is provided with sealing strips (13) around the inner cavity. The sealing strips (13) are made of rubber material. The sealing strips (13) are in contact with and squeezed around the outside of the annular sheet.

4. The multi-point water sampling device for environmental detection according to claim 1 is characterized in that: The sampling auxiliary mechanism (6) further comprises a movable inclined block (602), a pushing cone block (603), an induction switch (604), an annular mounting opening (605), a fixing spring (606) and an annular mounting plate (607); a plurality of movable inclined blocks (602) are mounted around the middle of the top end of the movable filter plate (601); a pushing cone block (603) is mounted on one side of the bottom end of the circular net cylinder (501); an annular mounting plate (607) is mounted around the top end of the movable filter plate (601); and a plurality of movable inclined blocks (602) are mounted on the bottom end of the movable frame head (301). An annular mounting opening (605) is provided around the periphery, a plurality of fixing springs (606) are installed at the top end of the inner cavity of the annular mounting opening (605), an induction switch (604) is installed at the middle upper end of one side of the inner cavity of the annular mounting opening (605), the induction switch (604) is electrically connected to the control panel, the top end of the annular mounting plate (607) extends inside the annular mounting opening (605) and is connected to the bottom end of the fixing spring (606), and a plurality of filter holes are equidistantly provided around the outside of the movable filter plate (601) and the annular mounting plate (607).

5. The multi-point water sampling device for environmental detection according to claim 2 is characterized in that: The moving mechanism (7) further comprises a sealing sleeve (703), a stabilizing sleeve (704), an electric push rod (705), a connecting rod (706) and a movable blocking plate (707); the bottom end of the propeller (701) is provided with a movable blocking plate (707); the movable blocking plate (707) is located at the bottom end of the inner cavity of the movable through groove (702); both sides of the inner cavity of the cover frame (2) are provided with a stabilizing sleeve (704); the upper end of the inner cavity of the cover frame (2) is provided with a connecting rod (706); both ends of the connecting rod (706) pass through the stabilizing sleeve (704) and are connected to the top end of the propeller (701); a connecting block is installed at the upper end of the left side of the propeller (701); the upper end of the left side of the inner cavity of the cover frame (2) is provided with an electric push rod (705); the bottom end of the electric push rod (705) is connected to the top end of the connecting block; the propeller (701) is electrically connected to the control panel.

6. The multi-point water sampling device for environmental detection according to claim 2, characterized in that: The distance measuring mechanism (9) further comprises a moving block (901), an electronic counter (902), a moving pulley (904), a mounting opening (905) and an elastic push rod (906); the mounting opening (905) is provided on the left side of the inner cavity of the movable hole (903); the electronic counter (902) is mounted on the upper end of the right side of the inner cavity of the mounting opening (905); the electronic counter (902) is electrically connected to the control panel; the moving block (901) is movably mounted on the inner cavity of the mounting opening (905); a moving pulley (904) is mounted on the middle part of the right side of the moving block (901); the elastic push rod (906) is mounted on the upper end and the bottom end of the side of the moving block (901) away from the moving pulley (904); the left side of the elastic push rod (906) is connected to the inner cavity of the mounting opening (905); and pulleys are mounted on both sides of the top end of the inner cavity of the movable hole (903).

7. The multi-point water sampling device for environmental detection according to claim 6, characterized in that: The lowering mechanism (8) further comprises a servo motor (801) and a connecting rope (804); the servo motor (801) is mounted on one side of the top end of the movable floating plate (1) via a mounting seat; the output shaft of the servo motor (801) is connected to one side of the retractable roller (803); the connecting rope (804) is wound around the outside of the retractable roller (803); the end of the connecting rope (804) away from the retractable roller (803) passes through the inside of the movable hole (903) and is connected to the top end of the movable frame head (301); a notch is provided on one side of the outside of the connecting rope (804) every 0.5 m; the inside of the connecting rope (804) is a hollow structure; and the servo motor (801) is electrically connected to the control panel.

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